Roll Adjustment Patents (Class 100/168)
  • Patent number: 6349637
    Abstract: A magnetic calender comprises a pair of rotatable parallel rolls (1, 2) and an electromagnet provided with two pole pieces (6, 7) extending parallel to the rolls (1, 2) and joined to a common base (5) through a plurality of magnetic cores (8) having an arrangement which is specularly symmetrical with respect to both the transverse mid-plane and the longitudinal mid-plane of the calender. A coil (9) and a control solenoid (10) located adjacent to the relevant pole piece (6, 7) are wound around each of the cores (8), and the intensity of the current circulating in the coil (9) is controlled by an adjusting unit (11) which is in turn controlled by a control unit (12) which receives and processes the magnetic flux reading carried out by the control solenoid (10).
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: February 26, 2002
    Assignee: SGM, S.p.A.
    Inventor: Danilo Molteni
  • Patent number: 6325960
    Abstract: Calender for a fibrous material web and method of operating a calender for a fibrous material web. The calender includes a first roll stack and a second roll stack each arranged in a common plane on a stanchion, each roll stack having a top deflection adjustment roll having a sleeve, a bottom deflection adjustment roll having a sleeve, and three intermediate rolls disposed between the top deflection adjustment roll and the bottom deflection adjustment roll, the uppermost the intermediate roll being fixedly mounted to the stanchion. The calender further has a deflection adjustment device having a sleeve lift supporting each sleeve, at least one deflection adjustment device facing the first roll stack in a first operative position and facing the second roll stack in a second operative position. A nonrotatable bracket supporting each deflection adjustment device and fixedly mounted to the stanchion is also provided.
    Type: Grant
    Filed: July 15, 1999
    Date of Patent: December 4, 2001
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Franz Kayser, Joachim Hinz, Mathias Helmus, Gerhard Stock
  • Patent number: 6305151
    Abstract: The invention relates to a method and a device for shaping and portioning a soft, pasty product within a tubular casing made of foil material, the encased product being supplied to a shaping and portioning station. The product leaves said shaping and portioning station divided into portions. The invention further comprises a metering station arranged directly upstream of the shaping and portioning station. The metering station meters the quantity of the product supplied to shaping and portioning station per unit of time.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: October 23, 2001
    Assignee: Natec, Reich, Summer GmbH & Co. KG
    Inventors: Klaus Schoenegg, Roland Zeuschner
  • Patent number: 6257132
    Abstract: A meat preparing machine having two vertically stacked columns of two or more non-sharpened edge stainless steel rollers, or of various other materials such as plastic or aluminum, adjacent to one another in an aluminum or stainless steel frame. The stacked rollers are configured to tenderize, flatten, scrape or cut the meat into strips. Four threaded shafts with numbers connect each corner of the stacked rollers to an adjacent corner of the other stacked rollers to allow for the adjustment of the spacing between the stacked rollers. A first conveyor belt with scraper at the end to discharge meat into the first and second columns is mounted adjacent the top of the rollers for feeding the meat into the rollers. A second conveyor belt with scrapers to discharge meat is mounted adjacent the bottom of the rollers for retrieving the prepared meat from the machine.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: July 10, 2001
    Inventor: Phil Bifulco
  • Patent number: 6248215
    Abstract: Calender and method for treating a material web. The calender includes a plurality of rolls in which each roll has a rotational axis. The rotational axes of the plurality of rolls are arranged to be substantially located in a press plane, and a plurality of nips are formed between adjacent rolls. A control device is provided to selectively open and close the plurality of nips, and the rolls are arranged so that at least two opened nips are positioned between two closed nips. The method includes forming a closed nip with the top roll, forming a closed nip with the bottom roll, forming at least two open nips between closed nips, and guiding the material web through at least the closed nips.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: June 19, 2001
    Assignee: Voith Sulzer Finishing GmbH
    Inventors: Dirk Cramer, Ulrich Wagner
  • Patent number: 6199477
    Abstract: The invention relates to a calender for treatment of a product web, having at least one roll stack comprising rolls arranged in a calender frame, the ends of which rolls are guided in roll mountings, which can be fastened to the calender frame by means of brackets, and having guiding means associated with the rolls for guiding a product web through nips formed between the individual rolls. For a rapid change-over with respect to the nature and intensity of the treatment of a product web in a calender, the brackets are in the form of modules, which support the rolls and are capable of being fastened individually to the calender frame and which have identical connecting devices for grouping, as desired, on the calender frame.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: March 13, 2001
    Assignee: Edward Kuster Maschinenfabrik GmbH Co. KG
    Inventors: Bernhard Brendel, Peter Svenka
  • Patent number: 6171629
    Abstract: An apparatus for joining dough blocks to form a continuous dough sheet. The dough blocks are cut from a dough mass and drop into a space between first and second groups of rollers. The first and second groups of rollers include horizontally-paired rollers arranged in tiers and forming a substantially V-shaped space for receiving the dough blocks, with the uppermost pair of rollers being separated by a first horizontal gap which is wider than a second horizontal gap separating the lowermost pair of rollers. The first group of rollers are rotated in a direction (e.g., clockwise) which is opposite to that of the second group of rollers. In addition, the first group of rollers is alternately moved toward and away from the second group of rollers, thereby applying vibrations to the dough blocks.
    Type: Grant
    Filed: January 6, 1997
    Date of Patent: January 9, 2001
    Assignee: Rheon Automatic Machinery Co., Ltd.
    Inventor: Michio Morikawa
  • Patent number: 6158334
    Abstract: The invention relates to a method for operating a calender, comprising a cylindrical heated roll and a flexible belt surrounding a stationary support beam which supports at least one actuator which may urge a concave load shoe against the heated roll by means of said flexible belt to form an extended and heated nip through which a fiber web passes to be calendered and a separating mechanism for having at least one of the rolls movable into and away from the nip characterised in that said flexible belt is a flexible tubular jacket which forms a part of an enclosed shoe roll such that the ends of said jacket have end walls mounted thereto, which end walls are rotatably mounted in relation to said support beam, and in that at least one of said end walls is driven by means of a drive arrangement which drive arrangement may be activated to drive the end walls and thereby also the jacket independently of its position in relation to the fiber web or the heated roll.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: December 12, 2000
    Assignee: Valmet Corporation
    Inventors: Nils-Erik Safman, Thomas Berglind
  • Patent number: 6006843
    Abstract: A contact cleaning roller (CCR) system includes a shell having an electrostatically active outer surface and being supported by a close-fitting rotatable shaft. The shaft within the shell is provided with a cam groove extending from a first axial location to a second axial location disposed 180.degree. from the first axial location, and then back to the first axial location. A cam follower attached to the inner surface of the shell rides in the cam groove, causing the shell to oscillate axially of the shaft at a frequency of oscillation which is the numerical difference between the rotational frequencies of the shell and shaft. In a preferred embodiment, the CCR shell is nipped against a backing roller, which may be an idle roller or a driven roller, the web passing therebetween in contact with the working surfaces of both rollers.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: December 28, 1999
    Assignee: Seratec, LLC
    Inventors: Frank C. Corrado, James W. Fischer, Gary R. Larsen, Ronald W. Sweet
  • Patent number: 5961899
    Abstract: A vibration control apparatus (20) and method for a calender (18) for controlling vibration between two or more rolls (ex. 22, 24) which controls vibration induced thickness variations in a medium (27) exiting from the nip. The apparatus (20) includes a frame (19), a first and second rolls (22, 24) mounted relative to the frame (19), and a force generator (32), such as an electromechanical active actuator, servo-hydraulic actuator, controllable semi-active damper, Active Vibration Absorber (AVA), or Adaptive Tuned Vibration Absorber (ATVA), provides cancelling forces to control vibration between the first and second roll (22, 24) thereby, controlling such vibration induced thickness variations in the medium (27). Preferably, the apparatus (20) includes at least one sensor (ex.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: October 5, 1999
    Assignee: Lord Corporation
    Inventors: Dino J. Rossetti, Stephen F. Hildebrand, John J. Quinn, Mark A. Norris, Lane R. Miller
  • Patent number: 5911174
    Abstract: Calender that may include two separately operable roll stacks. Each roll stack may include a top roll composed of a deflection compensation roll and a bottom roll composed of a deflection compensation roll. The two roll stacks may be arranged one atop the other.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: June 15, 1999
    Assignee: Voith Sulzer Finishing GmbH
    Inventors: Dirk Cramer, Horst Muller, Ulrich Wagner
  • Patent number: 5865112
    Abstract: An extended nip press for dewatering a pulp web has two press rolls that form an extended nip. The first press roll is retained in the axial direction at least at one end, and is held with its bearing pins on first bearing blocks. The second press roll is also held with its bearing pins on second bearing blocks. The second bearing blocks can be tensioned, each in pairs, with respect to the first bearing blocks by flexurally elastic tension elements, the tension elements allowing a relative displacement of the press rolls in the axial direction. The second bearing blocks are fixed in position with respect to the first bearing blocks in order to prevent excessive bending stress on the tension elements. For this purpose, either the rotary bearings of the second press roll are configured in non-tilting fashion, or additional support bearings are provided.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: February 2, 1999
    Assignee: Voith Sulzer Papiermaschinen GmbH
    Inventors: Joachim Grabscheid, Udo Grossmann
  • Patent number: 5850786
    Abstract: A meat flattening machine having two vertically stacked rows of non-sharpened edge stainless steel rollers adjacent to one another in an aluminum frame. Each row has at least two and preferably six rollers wherein the top row is spaced further apart from the bottom rows The plural stacked rows allow for the meat to be pulled and stretched between the rollers for flattening the meat. Four screws connect each corner of the stacked rollers to an adjacent corner of the other stacked rollers to allow for the spacing between the stacked rows to be adjustable. Each roller has parallel rows of rectangular ridges having non-sharpened edges. The bottom roller of each stack can have grooves approximately 1/16 inch deep, while the above rollers can have grooves approximately 1/8 inch deep between the rectangular ridges. The frame includes a removable electric motor, stainless steel sprockets and stainless steel chains for rotating the rollers.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: December 22, 1998
    Inventor: Phil Bifulco
  • Patent number: 5843280
    Abstract: Press device and method for treating a material web. The press device may include a shoe press roll that includes a flexible, tubular press jacket, face plates, face plate bearings associated with the face plates, a carrier axially extending through the press jacket, the face plates coupled with axial ends of the press jacket, and a press shoe device. The press device may also include an opposing element such that the shoe press roll and the opposing element may be adapted to form a nip. The carrier may support the press shoe device and may carry the face plate bearings, and the face plates, during an unloaded state of the shoe press roll, may be arranged inclined in opposite directions to form a press jacket mount that widens in a direction of the nip.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: December 1, 1998
    Assignee: Voith Sulzer Papiermaschinen GmbH
    Inventor: Christian Schiel
  • Patent number: 5816143
    Abstract: A process and device for satining paper may include guiding a sheet through a roll gap defined by a heated hard roll and a soft roll having with a covering. A paper sheet width of the paper may be less than a width of a cylindrical part of each of the covering and the hard roll. The two rolls may be axially adjusted in relation to each other and in accordance with the paper sheet width. Further, the two rolls are positioned such that a first sheet edge is located adjacent a first end of the cylindrical part of the covering and a second sheet edge is located adjacent a second end of the cylindrical part of the hard roll. That is, the cylindrical parts of the covering and hard roll are positioned to be directly over each other, i.e., beyond the sheet edge, at most by a predetermined permissible edge width.
    Type: Grant
    Filed: February 25, 1997
    Date of Patent: October 6, 1998
    Assignee: Voith Sulzer Finishing GmbH
    Inventors: Ulrich Wagner, Dirk Cramer
  • Patent number: 5811137
    Abstract: A sheeter head having a pair of counterrotating internally-driven sheeter rollers is disclosed. The sheeting rollers each include an independent internal drive motor and gear box affixed to a nonrotating shaft, along with a nonrotating idle shaft on an opposite end of the roller. The speeds of the drive motors are controlled by an external device such as an inverter speed control. The nonrotating shafts, in conjunction with the absence of any external drive mechanism, allow for sanitary operation, easy clean-up, and a simple and efficient adjustment mechanism for varying a pinch point between the rollers. The preferred adjustment mechanism includes a fixed front roller and horizontal slide plates connected to the axles of a back roller, the slide plate having pegs which slide in associated grooves. One of the grooves is preferably wider than the other to help prevent binding during an adjustment operation.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: September 22, 1998
    Assignee: Casa Herrera, Inc.
    Inventors: Donald B. Clark, Michael L. Herrera
  • Patent number: 5782177
    Abstract: A roller arrangement has a magnetic circuit that includes two rollers. The magnetic circuit consists of a cylindrical magnetic core, several poles axially distributed on the magnetic core, a cylindrical exciter and control windings arranged between these poles, a magnetic shell that encloses the whole circumference of one roller and is made of two parts separated by a ring-shaped secondary air gap, and a continuous magnetic shell in the axial direction arranged at the outer circumference of the other roller. When used to process webs of material in the textile, paper, plastic and metallurgical industries, this electromagnetic roller arrangement achieves high quality standards with a high productivity.
    Type: Grant
    Filed: October 20, 1996
    Date of Patent: July 21, 1998
    Assignee: EMS Elektromagnetische Systeme GmbH
    Inventor: Hans-Jochen Karl Max Rindfleisch
  • Patent number: 5755370
    Abstract: A press feed capable of being driven in synchronization with a press. The press feed includes a sensor for sensing a selected phase of a press cycle of the press, structure for engaging stock material adapted to be fed by the press feed to the press, and an infinitely variable release device connected to the stock material engaging structure and communicating with the sensor. The infinitely variable release device operates to move the stock material engaging structure in a first direction relative to the stock material responsive to detection by the sensor at the onset of the selected press cycle phase, and to move the stock material engaging structure in a direction generally opposite the first direction responsive to detection by the sensor at the termination of the selected press cycle phase. The infinitely variable release device may be a servo controlled drive screw.
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: May 26, 1998
    Assignee: VAMCO Machine & Tool, Inc.
    Inventors: Joseph P. Gentile, Vaughn H. Martin
  • Patent number: 5738007
    Abstract: A calender employs an open-stack like arrangement with a single vertical beam or support column on each end of the calender. In combination with the support beam, a special swing link is used to support tension loads on the open side of the calender. The nip is thus straddled by structural members between the support column and the link. This combination has the ability to support high linear nip loads, as high as 3,000 PLI or higher. The link has pin connections at both ends so that when one pin is removed, the link can be swung open for roll removal or accessibility. Thus, the strength of the closed-stack calender is combined with the visibility and ease of access of the open-stack calender by the employment of tension links which replace one of the support columns utilized in a closed-stack calender.
    Type: Grant
    Filed: March 12, 1996
    Date of Patent: April 14, 1998
    Assignee: Beloit Technologies, Inc.
    Inventors: Arnold J. Roerig, Dale A. Brown
  • Patent number: 5733589
    Abstract: A method of and an apparatus for developing dough capable of developing dough uniformly and effectively. In the method for developing dough based on difference in surface velocity between a pair of upper and lower rollers disposed upstream and another pair of upper and lower rollers disposed downstream, it is characterized in that the upper roller disposed upstream moves vertically and reciprocally to beat the dough. In the apparatus for developing dough comprising a pair of upper and lower rollers disposed upstream and another pair of upper and lower rollers disposed downstream, it is characterized in that the upper roller disposed upstream is vertically movable so as to beat dough. Dough is effectively and uniformly developed without displacing the upper and lower layers so that the stress inside dough is dispersed and gas is effectively let out of dough.
    Type: Grant
    Filed: January 18, 1996
    Date of Patent: March 31, 1998
    Assignee: Oshikiri Co., Ltd.
    Inventor: Yuzuru Oki
  • Patent number: 5704284
    Abstract: An equalizer assembly that integrates into the die cutting station of a press and comprises two hydraulic actuators, each of which interacts with one of the jackscrews of the press to create an internal hydraulic pressure. The internal pressure of a first of the hydraulic actuators corresponds to a loading force that is imparted upon the rotary cutting die proximate to a first end of the rotary cutting die, and the internal pressure of a second of the hydraulic actuators corresponds to a loading force that is imparted upon the rotary cutting die proximate to a second end of the rotary cutting die. The hydraulic actuators are in fluid communication with one another such that the hydraulic pressures therein are maintained substantially equal to define an overall system hydraulic pressure, and the hydraulic actuators are designed and arranged so that the loading forces generated thereby are substantially equal.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: January 6, 1998
    Inventor: Josef A. Stollenwerk
  • Patent number: 5693186
    Abstract: An apparatus for interconnecting rolls that form an extended nip in which the extended nip is formed by a back-up roll and an extended-nip roll having a loading shoe and loading members for pressing the loading shoe toward the back-up roll. A resilient belt mantle runs around the extended-nip roll and is pressed against the back-up roll. The extended-nip roll and the back-up roll are interconnected by coupling members at their bearing housings which include displaceable locking shafts.
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: December 2, 1997
    Assignee: Valmet Corporation
    Inventor: Oiva Vallius
  • Patent number: 5673603
    Abstract: A device for cutting to shape advancing material webs, in particular made of fibrous materials, comprises a rotatingly driven shape cutting roller and a rotatingly driven counter cutting roller. The shape cutting roller has a shape cutting edge and the counter cutting roller a smooth cylinder surface. Both rollers are mounted in a machine frame by means of pivot bearings, and the distance between the axes of the rollers is adjustable. The rollers are rotatably mounted in separate, first and second machine frame parts which, for their part, are supported on a common machine base. One of these machine frame parts is held on an adjustable wedge-shaped guide means for adjusting the distance between the axes of the rollers. Each machine frame part is adapted to be secured separately on the machine base.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: October 7, 1997
    Inventor: Wilhelm Aichele
  • Patent number: 5674543
    Abstract: An improved pinch-point gap adjustment mechanism for a dough sheeter having two counterrotating rollers, one of which is horizontally moveable, is disclosed. The pinch-point gap adjustment mechanism incorporates a lever-action arrangement to provide mechanical assistance to an operator adjusting the pinch-point gap. The lever-action incorporated by the current invention distributes input forces for pinch-point gap adjustment across the height of the moveable roller. The disclosed invention allows for smoother pinch-point gap adjustment such that binding of the slider plates is minimized. The preferred sheeter head assembly permits an operator to release the front roller from the same operator location as where adjustments to the pinch-point gap are made.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: October 7, 1997
    Assignee: Casa Herrera, Inc.
    Inventor: Agustin G. Partida
  • Patent number: 5670022
    Abstract: A top roll lifting arrangement for a roll press in a press section of a papermaking or boardmaking machine where the roll press includes a top roll and a bottom roll, the rolls being opposed and parallel and having main axes defining a press plane and forming between them a press nip. The press has a framework including two side frames in parallel relationship to each other, one located on the drive side of the machine and the other one on the tender side of the machine. Each side frame has a first vertical column upstream of the press nip and a second vertical column downstream of the press nip. The upper roll is carried by a brackets extending between the upstream and downstream vertical columns. The brackets have bevelled ends that co-operate with inclined surfaces of plate members on the vertical columns.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: September 23, 1997
    Assignee: Valmet-Karlstad AB
    Inventor: Roland Bengtsson
  • Patent number: 5664903
    Abstract: Support connections. Support connection are provided between two rolls, with the roll covering of at least one roll being journalled on a carrier via a plurality of support elements as well as being displaceable relative to the carrier along the pressure plane, with support portions that receive the carrier being connected via elongated connection parts, having thickened portions on both ends thereof, with the thickened portions being connected in a form-locking manner with respective recesses of the support parts in a removable manner, with the connection parts, between the thickened portions, in a direction parallel with the pressure plane, being substantially longer than laterally extending with respect thereto and, between the thickened portions, at least one elongated opening being provided therein, with the opening dividing the connection parts in the direction of the roll axis.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: September 9, 1997
    Assignee: Voith Sulzer Papiermaschinen GmbH
    Inventor: Andreas Meschenmoser
  • Patent number: 5662574
    Abstract: A resilient pressure roller of the large type that is of unitary construction with a rigid core, a central body of rubber or synthetic rubber of one durometer and a thin outer shell of another durometer. The body is given a nonlinear longitudinal profile and the shell is given a profile different from that of the body. The differences in profiles of the body and shell, along with their different durometers sum to develop approximately uniform nip profiles along the nip so as to minimize hysteresis heating and degradation in the roller and thereby provide a roller of greatly extended life expectancy.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: September 2, 1997
    Inventor: John A. Slotten
  • Patent number: 5662950
    Abstract: The present invention aims to provide a roll bending device for forming plastic sheet wherein no bending cylinders are used and operability is improved. A roll has a shaft at its both end portions, a second roll has a shaft at its both end portions. A pair of first housings has a bearing for supporting the shaft, and is positioned at both end portions of the shaft. A pair of housings has a bearing for supporting the shaft, and is positioned at both end portions of the shaft. A pair of housings has a bearing for supporting the shaft, and is positioned at the inside of the housings. A pair of housings has a bearing for supporting the shaft, and is positioned at the inside side of the housings. A pair of main cylinders supports the housings to pressurize the roll in a direction of the roll. A pair of gap adjusting devices is provided between the housings and to adjust a gap therebetween.
    Type: Grant
    Filed: March 13, 1996
    Date of Patent: September 2, 1997
    Assignee: Toshiba Machine Co., Ltd.
    Inventor: Toshihiko Kusago
  • Patent number: 5647673
    Abstract: Plate-cylinder bearing arrangement for a printing press having a plate cylinder and a rubber-blanket cylinder mounted on respective shafts, the plate cylinder and its shaft being displaceable, and a side-register adjusting device serving for position correction includes two bearing levers extending in a direction towards ends of the blanket-cylinder shaft for maintaining the plate-cylinder shaft in its axial position, the plate-cylinder shaft being connected at each of its ends through the intermediary of self-aligning bearings to one of the bearing levers, respectively, and the bearing levers being connected to a printing-press housing, through the intermediary of spherical-cup bearings, so as to be swivellable in axial direction of the plate cylinder.
    Type: Grant
    Filed: October 13, 1995
    Date of Patent: July 15, 1997
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Edgar Grundke, Hans-Jurgen Kusch
  • Patent number: 5609098
    Abstract: A paper calendering apparatus comprises a nip section for advancing paper sheets formed by at least a pair of rollers, one of which is a metal roller and the other of which is a resilient roller or a metal roller, wherein a gap of equal spacing is formed along the entire width of the roller face at the nip section of the pair of rollers, and is set to less than the thickness of the paper sheet to be finished.
    Type: Grant
    Filed: March 16, 1995
    Date of Patent: March 11, 1997
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Tsuyoshi Abe, Akira Nomoto
  • Patent number: 5597592
    Abstract: A middle sole sloping machine includes a base plate, upper and lower roll assemblies each including a first and second rolls separated from each other and an elastomeric sloping section fixedly attached to one of the rolls, a fixed mount plate and a movable mount plate extending upward from the base plate, the movable mount plate being movable relative to the fixed mount plate in a direction parallel to the extending direction of the roll assemblies, a first device for effecting relative movements between the fixed and movable mount plates along the extending direction of the roll assemblies, a second device for effecting vertical movements of the first and second rolls of the roll assemblies, a third device for rotating the roll assemblies, a controller mounted to each of the first and second devices, and a control box electrically connected to the controllers to provide an automatic control for adjustments of the rolls.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: January 28, 1997
    Inventor: Tien-fu Yeh
  • Patent number: 5577441
    Abstract: A pressing device for extracting water from a pulp web comprises two press rolls that form between them a nip and that are arranged to extend substantially in parallel one to the other in the unloaded condition. The first press roll has its two ends supported in first bearing blocks and is stationarily fixed in the axial direction at least on one end. The second press roll is supported by its two ends in two bearing blocks. The first bearing blocks and the second bearing blocks can be braced one to the other by tension members which allow the press rolls to perform a relative movement in the axial direction under load. One of the second bearing blocks is secured against displacement in the axial direction on the lower first bearing block, by an articulated joint acting preferably on the middle of the longitudinal extension of the tension element.
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: November 26, 1996
    Assignee: Voith Sulzer Paperiermaschinen Gesellschaft mbH
    Inventor: Joachim Grabscheid
  • Patent number: 5562790
    Abstract: An apparatus and method for bonding at least two continuously moving substrate webs together is disclosed. The apparatus comprises a rotatable bonding roll which is located adjacent the substrate webs and configured to rotate about a bonding axis. A rotatable anvil roll has an anvil surface and is configured to rotate about an anvil axis to press the substrate webs against an outer peripheral bonding surface of the bonding roll thereby bonding the substrate webs together. The anvil roll is pivotally connected to a pivotal support mechanism which is configured to maintain the anvil surface in a substantially parallel relationship with the bonding surface. The pivotal support mechanism is configured to allow the anvil roll to pivot such that the anvil roll maintains a substantially constant force on the bonding surface of the bonding roll across the width of the anvil roll.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: October 8, 1996
    Assignee: Kimberly-Clark Corporation
    Inventors: Thomas D. Ehlert, Norman R. Stegelmann
  • Patent number: 5535670
    Abstract: A cantileverable roll for use in a roll press, wherein the cantileverable roll cooperates with a backing roll. The cantileverable roll has a rotating surface and is either a solid rotatable roll body or a stationary roll body with a rotatable shell around it. A journal at each end of the cantileverable roll is supported in a respective bearing bracket. At one end of the roll, preferably the drive end, there is a non-rotating extension piece which extends out axially from the roll body and is fastened to the bearing bracket at that end. A tension bar or the like connects the extension piece to a stationary structural part and introduces force in the roll body which compensates for the weight of the roll when the other end of the roll is temporarily unsupported and the roll is cantilevered. The backing roll may also be cantilevered. The various techniques for supporting the one end of the roll by using the coupling element from the extension piece to the frame of the paper making machine are disclosed.
    Type: Grant
    Filed: August 25, 1994
    Date of Patent: July 16, 1996
    Assignee: J. M Voith GmbH
    Inventors: Christian Schiel, Joachim Grabscheid
  • Patent number: 5513560
    Abstract: A method and apparatus for rapid exchanging of calender rollers 350,352 for a calendering apparatus 302 is disclosed. The apparatus 302 has two or more generally cylindrical calender rollers 350,352 which are clamped and supported at each end by a rotatable support 314,316. A pair of the supports 314,316 are axially aligned and movable relative to the other axially aligned support. The method of exchanging rollers 350,352 includes the step of unclamping a roller 350 or 352 by increasing the spacing between the first and second rotatable supports 314,316, removing the roller 350,352, and clamping a different calender roller 350,352 between the first and second supports 314,316 by decreasing the spacing between them and engaging the respective ends of the different roller 350,352 with the first and second supports 314,316. This apparatus and method greatly facilitates rapid calender roller changeover and is particularly useful in the tire building art.
    Type: Grant
    Filed: January 5, 1995
    Date of Patent: May 7, 1996
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Daniel R. Downing, William J. Head, James A. Benzing, II
  • Patent number: 5507223
    Abstract: A coupling construction for coupling an extended-nip press roll including a loading shoe for loading a belt mantle to press the belt mantle toward a back-up roll. The coupling construction includes pivotally linked tie members for detachably connecting the bearing housings of the extended-nip press roll and the back-up roll so that the tie members are connected with either bearing housing and the roll in the other bearing housing is serviceable.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: April 16, 1996
    Assignee: Valmet Paper Machinery, Inc.
    Inventor: Oiva Vallius
  • Patent number: 5505605
    Abstract: A middle sole sloping machine includes a base plate, upper and lower rolls each including first and second roll sections, a fixed mount plate and a movable mount plate extending upward from the base plate, the movable mount plate being movable relative to the fixed mount plate in a direction parallel to the extending direction of the upper and lower rolls, a device for effecting relative movements between the fixed and movable mount plates along the extending direction of the upper and lower rolls, a second device for effecting vertical movements of the first and second roll sections of the upper and lower rolls, a third device for rotating the upper and lower rolls, a controller mounted to each of the first and second devices, and a control box electrically connected to the controllers to provide an automatic control for adjustments of the roll sections.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: April 9, 1996
    Inventor: Tien-fu Yeh
  • Patent number: 5443000
    Abstract: A calender arrangement having vertically-arranged upper, center and lower rollers with matching upper, center and lower carrier-blocks and a suspended spindle, comprises a support element above a bearing-surface on the upper carrier-block. The support-element aids in lifting the suspended spindle and a carrier-nut when raising the upper carrier-block. An insert is placed between a bearing-surface on the upper carrier-block and the support-element, which comprises a horizontal slider seated on the upper carrier-block, which enables a relatively small motor to be used to reset the carrier-nut.
    Type: Grant
    Filed: April 28, 1994
    Date of Patent: August 22, 1995
    Assignee: Sulzer Papertec Krefeld GmbH
    Inventor: Reinhard Wenzel
  • Patent number: 5439544
    Abstract: A no-crush roll system for attaining zero crush across the double backer in a corrugator is disclosed which is retrofittable to most existing machines. The no-crush roll system includes a series of pairs of bearing adapters each formed with a pin received in an overhead support frame with a bearing support cup located at inwardly extending ends of the pin to receive a bearing mounted to opposite ends of the roller. Each bearing is received in an elongate cavity facing the roller which permits the height of the roller to self adjust in response to changes in thickness of the cardboard material being conveyed along a hot plate as the weight of the rollers pressing against the top surface of the cardboard ensure even glue distribution and curing contact without crushing the material. A method of eliminating crush in a double backer of a corrugator is also disclosed.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: August 8, 1995
    Assignee: Chesapeake Corporation
    Inventor: William H. Bory
  • Patent number: 5427021
    Abstract: A calender for material webs of paper or the like comprises at least one pressing gap. At least one temperature controlled tempering roller is disposed adjacent to the gap. A charging device is disposed adjacent to the gap. The charging device electrostatically charges the material web before the material web contacts the tempering roller.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: June 27, 1995
    Assignee: Sulzer Papertec Krefeld GmbH
    Inventor: Hans-Rolf Conrad
  • Patent number: 5413036
    Abstract: A roll press with two press rolls which together form a press gap and whose axes are situated in a press plane. A journal is disposed on the ends of each roll, with pillow blocks for receiving the journals, with a rack for supporting the pillow blocks, and with tie rods which are arranged on both sides of the press plane and at least approximately parallel to it. Cradles are provided which support the pillow blocks. Between the cradles and the pillow blocks is an articulated joint which enables the pillow blocks to pivot about an axis which extends perpendicularly to the press plane and essentially in the axial plane of the respective roll.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: May 9, 1995
    Assignee: J. M. Voith GmbH
    Inventor: Christian Schiel
  • Patent number: 5404811
    Abstract: Two press units have axes which lie in a pressing plane which is inclined to the vertical direction and they form a press nip with each other. The two press units are supported by bearing brackets which are coupled in pairs to each other by detachable tension bars which transmit the pressing force. The bearing brackets of the one press unit are supported rigidly (i.e. directly on a machine frame, foundation, or the like) and bear at least a part of the weight of the other press unit. A support device on the machine frame, foundation, or the like at least temporarily takes up a component of the weight of the other press unit which is directed transverse to the pressing plane.
    Type: Grant
    Filed: August 9, 1993
    Date of Patent: April 11, 1995
    Assignee: J. M. Voith GmbH
    Inventors: Christian Schiel, Joachim Grabscheid
  • Patent number: 5400708
    Abstract: A roll assembly comprising a rotatable roll (1 in FIG. 2) and a second roll (2 in FIG. 2) cooperating therewith, in which a pressing element (17) to effect displacement between the rolls along a pressure plane of the roll assembly is located in one of the rolls (1,2) and in which both rolls are supported at either end by respective support members (5,6). Prior to operation of the roll assembly, dumbbell-like shaped connecting parts (7) installed in corresponding cut-outs (9) in the support members (5,6) are tensioned and thereby securely form-locked by actuating the pressing element (17). Locking action is released by subsequent deactivation of the pressing element (17) after which the connecting parts (7) can be withdrawn. Two principal advantages of this arrangement, are the compacter construction, enabled by the fact that the frame no longer bears the pressing forces of the roll assembly, and the ease and speed with which components such as rolls, roll jackets or felt belts can be changed.
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: March 28, 1995
    Assignee: Sulzer-Escher Wyss GmbH
    Inventor: Andreas Meschenmoser
  • Patent number: 5397526
    Abstract: Apparatus for reconfiguring at least three finishing rolls in a plastic sheet fabricating sheetline includes a base, a pair of spaced upright support structures, and pairs of first and second spaced support assemblies. The upright support structures are mounted on the base and support a center one of the rolls in a stationary position therebetween and for rotation about a first axis. The first support assemblies support a first outer one of the rolls therebetween for rotation about a second axis and are mounted to the support structures for permitting angularly adjustable movement of the first outer roll relative to the center roll about the first axis to reconfigure the angular position of the first outer roll relative to the center roll.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: March 14, 1995
    Assignee: HPM Corporation
    Inventors: James H. Perkins, Charles C. Treisch, Jr., Howard E. Radel, William N. Calland
  • Patent number: 5392702
    Abstract: A rolling apparatus utilizing magnetic forces established between two main rollers so that a workpiece undergoes a uniform and predetermined pressure throughout the rolling process. At least one of the main rollers has a ply unit preferably made from insulated and laminated silicon steel sheets within it to substantially eliminate undesirable heating and counter-rotational effects resulting from eddy currents generated by the magnetic flux passing through the rollers. Passageways are provided for a fluid medium in the apparatus to forcibly move the heat by circulating the fluid medium.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: February 28, 1995
    Assignee: Bellmatic, Ltd.
    Inventor: Hideo Suzuki
  • Patent number: 5385088
    Abstract: A press includes at least two press units supported by respective bearing brackets. The bearing brackets are coupled together by releasable tension rods which transmit a pressing force. When the two press units are not transmitting a pressing force in a pressing plane, the tension rods are prestressed at a maximum of a fraction of the maximum pressing force. One of the bearing brackets is movable relative to the other bearing bracket along the pressing plane. The bearing brackets are guided by a pair of guide surfaces disposed parallel to the press plane.
    Type: Grant
    Filed: August 9, 1993
    Date of Patent: January 31, 1995
    Assignee: J.M. Voith GmbH
    Inventor: Joachim Grabscheid
  • Patent number: 5364257
    Abstract: A middle sole sloping machine includes a base plate, upper and lower rolls each including first and second roll sections and a flexible sloping section which connects the first and second roll sections, a fixed mount plate and a movable mount plate extending upward from the base plate, the movable mount plate being movable relative to the fixed mount plate in a direction parallel to the extending direction of the upper and lower rolls, a device for effecting relative movements between the fixed and movable mount plates along the extending direction of the upper and lower rolls, a second device for effecting vertical movements of the first and second roll sections of the upper and lower rolls, and a third device for rotating the upper and lower rolls.
    Type: Grant
    Filed: October 7, 1993
    Date of Patent: November 15, 1994
    Inventor: Ten F. Yeh
  • Patent number: 5302203
    Abstract: A web of flexible material is pressed between a counterroll and a pressing roll to which the pressing force is applied by magnetic, fluid-pressure or switching means via a force-multiplying lever arrangement.
    Type: Grant
    Filed: July 10, 1991
    Date of Patent: April 12, 1994
    Inventor: Johannes Zimmer
  • Patent number: 5300184
    Abstract: A press roll apparatus temporarily or finally bonds two glass sheets with an adhesive intermediate film sandwiched therebetween to manufacture a laminated glass. The press roll apparatus has a plurality of drive roll units each having a pair of upper and lower presser rolls operatively coupled to a drive source and rotatable thereby for pressing the glass sheets therebetween, and a plurality of free roll units each having a pair of upper and lower presser rolls freely rotatable for pressing the glass sheets therebetween. The drive roll units and the free roll units are housed in a frame and vertically positionally adjustably supported by the frame, the frame having a pair of horizontal shafts projecting outwardly. The frame is supported on a support frame by the horizontal shafts for angular movement about the horizontal shafts, the support frame having a pair of horizontally spaced vertical support columns.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: April 5, 1994
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventor: Hiroaki Masunaga
  • Patent number: 5291826
    Abstract: The axes of a first press roll (1) and of a second press roll (3) lie in a press plane (E). Each of the press rolls has a journal pin (2) and (4) respectively. The first press roll is supported in a first bearing pedestal (5). The second press roll rests in a second bearing pedestal (6) which is coupled to the first bearing pedestal (5) by utilizing flexurally soft tension bars (7, 8). In the unloaded condition of the roll press, the second bearing pedestal (6) rests on the first bearing pedestal (5). In the loaded condition, play (p) is established between the bearing pedestals (5 and 6) so that the bearing pedestals (5 and 6) are displaceable axially relative to each other.
    Type: Grant
    Filed: November 6, 1992
    Date of Patent: March 8, 1994
    Assignee: J. M. Voith GmbH
    Inventor: Christian Schiel