Abstract: A method for setting up printing presses includes providing cylinders, a drive for at least one cylinder, a register adjustment device for at least one cylinder and at least one control unit. During set-up operations on the printing press, the control unit actuates the register adjustment device while the printing press is being accelerated or decelerated or while washing operations in the printing press are being carried out and while a production run is switched off and cylinders are rotating. A printing press carrying out the method is also provided.

Abstract: A bag making and packaging machine forms a first transverse seal portion in a packaging material formed in a tubular shape, fills the packaging material with articles, thereafter further forms a second transverse seal portion to make a bag, and allows the bag to fall, and is equipped with a vibrating mechanism. The first transverse seal portion is formed in a direction perpendicular to a conveyance direction of the packaging material. The vibrating mechanism tilts the packaging material to an outer side of a fall path of the bag and vibrates the packaging material after the packaging material has been filled with the articles and before the second transverse seal portion is formed.

Abstract: A film transport apparatus includes: an edge sensor that detects a lateral position deviation of a film; a lateral position correction device that corrects a lateral position of the film with a guide roll; a tension sensor that detects tensions applied respectively near left and right ends of the film; and a control unit that executes feedback control such that the lateral position correction device is controlled on the basis of the lateral position deviation detected by the edge sensor so that the film is located at a target position. The control unit changes the feedback control based on a left and right tension difference, which is a difference between the tension applied near the left end of the film and the tension applied near the right end of the film, the tensions being detected by the tension sensor.

Abstract: A web conveying apparatus that conveys a web, includes: a transverse position displacement detection unit that detects a transverse position displacement of the web; a transverse position correction unit that corrects a transverse position of the web by a guide roller; width detection units that detect a width size in a left-right direction of the web; and a control unit that controls the transverse position correction unit in accordance with the transverse position displacement detected by the transverse position displacement detection unit and performs feedback control to position the web in a target position. The control unit changes a correction amount in the feedback control in accordance with the width size of the web detected by the width detection units.

Abstract: A web meandering correction system (1) includes: an edge detector (2) that detects an edge position signal of a web; an HPF processing unit (3) that executes a high-pass filtering process on the edge position signal using a predetermined lower limit frequency as a reference; a high-frequency noise analyzing unit (4) that analyzes high-frequency noise that has passed through the HPF processing unit (3); an LPF processing unit (5) that executes a low-pass filtering process on the edge position signal using a predetermined upper limit frequency as a reference; a coefficient setting unit (6) that sets a coefficient that determines the characteristics of the low-pass filtering process on the basis of a result of analysis by the high-frequency noise analyzing unit (4); and a meandering correction unit (7) that corrects meandering of the web on the basis of information acquired by the LPF processing unit (5).

Abstract: A sheet feeding apparatus includes a conveyance unit configured to convey a sheet supplied from a holding unit, a sensor configured to detect an edge of the sheet in a width direction, and a control unit configured to detect, with the sensor, a displacement of the edge of the sheet in the width direction during movement of the sheet by a predetermined distance, and to cancel a subsequent skew detection operation if the displacement is larger than an allowable amount.

Abstract: A recording apparatus includes a movable belt and a recording mechanism. The movable belt is configured and arranged to convey a recording medium. The recording mechanism is configured and arranged to record onto the recording medium. The movable belt has a mark serving as a reference for when the recording medium is being set thereon.

Abstract: A method for reducing media skew in a media advance mechanism according to embodiments of the invention includes applying tension to a roll of media in a direction that opposes forward motion of the media, advancing the media, and reversing the media.

Abstract: An image-forming device includes a conveying part, an image-forming part, first through third sensors, and a control part. The conveying part is configured and arranged to convey a continuous recording material. The image-forming part is configured and arranged to form an image on the recording material conveyed by the conveying part. The first through third sensors are configured and arranged to detect positions of an edge surface of the recording material conveyed by the conveying part. The control part is configured to calculate first through third shifting amounts based on the positions of the edge surface of the recording material simultaneously detected by the first through third sensors, respectively. The first shifting amount is generated by movement of the recording material, the second shifting amount is generated by rotation of the recording material, and the third shifting amount is generated by fluctuations in the edge surface of the recording material.

Abstract: The advantage of the invention is to provide a medium feed device and the like for intermittently feeding a recording medium in which meandering can be securely corrected without the occurrence of wrinkles in the recording medium. The medium feed device has a meandering detection sensor which detects position displacement of a recording medium in a width direction, and a control section which controls driving of a width movement unit based on detection results by the meandering detection sensor. The control section stops driving of the width movement unit when stopping feeding of the intermittent feeding.

Abstract: A device for automatically controlling the edges of a web of sheeting has a first deflecting roller and a second deflecting roller, which are arranged parallel to each other, and also a drive for shifting the deflecting rollers in opposite axial directions. A sensor detects the position of the sheeting. The drive shifts the deflecting rollers in opposite axial directions and the ratio between the friction of the sheeting on the first deflecting roller and the friction of the sheeting on the second deflecting roller is changed on the basis of the position of the sheeting detected by the sensor.

Abstract: The invention relates to a method for controlling a side guide of a metal strip (1), in particular in the inlet or outlet of roll stands or driving apparatuses, wherein the side guide comprises a guide (2, 4) disposed laterally to the metal strip (1) on both sides of the metal strip (1), and the guides (2, 4) can be displaced independently of each other. One of the guides (2) is thereby driven by means of position control, and a second of the guides (4) is driven by means of force control, wherein forces of the metal strip (1) acting on the first guide (2) and the second guide (4) are measured. The target force for the second, force-controlled guide (4) is thereby prescribed as a function of the measured force on the first, position-controlled guide (2), wherein as the force on the first, position-controlled guide (2) increases, the target force for the second, force-controlled guide (4) is reduced.

Abstract: Disclosed are a method and a device for measuring a running direction of a substrate web (6). The method for measuring a running direction of a substrate web consists of the substrate web (6) being guided around a measuring roller (12), at least one bearing force of the measuring roller (12) being measured, and the running direction of the substrate web (6) being determined based on the measured bearing force. The device (10) for measuring the miming direction of a substrate web (6) comprises a measuring roller (12), with the substrate web (6) being guided around said measuring roller (12). Furthermore, the device (10) comprises at least one sensor (18a, 18b, 18c) for measuring a bearing force of the measuring roller (12) and comprises an evaluation circuit, said evaluation circuit being connected to the at least one sensor (18a, 18b, 18c) and being suitable for determining an alignment of the substrate web (6) based on the bearing force measured by the sensor (18a, 18b, 18c).

Abstract: There is provided a method of winding up a transfer film and a device for performing transfer printing on printed sheets of paper, capable of eliminating the need to frequently replace the transfer film, thereby allowing the transfer film to be used over a prolonged time. According to the method of winding up a transfer film, the transfer film fed from a feed roll through a feed path is pressed onto a fed printed sheet to transfer patterns of the transfer film, and then the transfer film is wound up onto a windup roll through a windup path. During the rewind of the transfer film from the windup roll to the feed roll, a lateral position of the transfer film running along the feed path is detected, and the feed roll is moved in its axial direction to follow a lateral positional change of the transfer film.

Abstract: The present disclosure relates an apparatus for controlling the lateral offset of webs of material. The apparatus can include a support structure for supporting a roll and a mechanism for lifting the web of material off the roll. The support structure can include a fixed portion and at least one movable portion. The roll is preferably journaled to first mountings, the first mountings being attached to the movable portion of the support structure, so that the roll can be moved together with the first mountings. A potential advantage of this design is that the journal bearing of the roll on a respective shaft can be configured more easily and given smaller dimensions. According to a further aspect of the disclosure, the lifting mechanism can include at least two single rollers, rotatably journaled to two lateral supports. Such single rollers are advantageously arranged along a circular-arc plane. The web of material can thus be deflected with as large a radius as possible.

Abstract: A web conveying apparatus that conveys a web, includes: a transverse position displacement detection unit that detects a transverse position displacement of the web; a transverse position correction unit that corrects a transverse position of the web by a guide roller; width detection units that detect a width size in a left-right direction of the web; and a control unit that controls the transverse position correction unit in accordance with the transverse position displacement detected by the transverse position displacement detection unit and performs feedback control to position the web in a target position. The control unit changes a correction amount in the feedback control in accordance with the width size of the web detected by the width detection units.

Abstract: A film transport apparatus includes: an edge sensor that detects a lateral position deviation of a film; a lateral position correction device that corrects a lateral position of the film with a guide roll; a tension sensor that detects tensions applied respectively near left and right ends of the film; and a control unit that executes feedback control such that the lateral position correction device is controlled on the basis of the lateral position deviation detected by the edge sensor so that the film is located at a target position. The control unit changes the feedback control based on a left and right tension difference, which is a difference between the tension applied near the left end of the film and the tension applied near the right end of the film, the tensions being detected by the tension sensor.

Abstract: The present invention provides a web traveling position regulating method, a web manufacturing method and a web conveying device that, without relying on a roller whose peripheral surface is crown-shaped, can carry out transverse direction position regulation of a web that travels, and provides a web cutting device to which the web conveying device is applied and that, by a simple structure, can carry out transverse direction position regulation of plural webs that travel.

Abstract: A bridge of a corrugating machine controls corrugated fiberboard single-face webs fed from single-face corrugating machines. The bridge comprising a stored web supply formed by the bottom-most of the single-face webs, the stored web supply loosely-lying; a fixed guide element introducing a first reversal of direction of the web in the direction opposite a course of fabrication; a fixed redirecting element; a redirecting roller mounted in a frame swivelable about a vertical axis, the redirecting roller cooperating with the fixed redirecting element to cause a second reversal of direction of the web back in the direction of the course of fabrication, wherein the redirecting roller is disposed above the fixed redirecting element such that a web course section is created running parallel to the swivel axis; and a steering frame having a braking roller feeding the web to a preheating station, the braking roller creates a desired web tension load.

Abstract: A method of controlling a moving web in relation to a selected transverse position comprising positioning a first positioning guide proximate a second positioning guide wherein the second positioning guide has a mechanism for positioning the web having minimal backlash. The web is passed through the first positioning guide and the second positioning guide. A sensor detects the transverse position of the moving web at the second positioning guide. The sensor transmits the transverse location of the web at the second positioning guide to a controller. The controller manipulates a zero-backlash actuator wherein the zero-backlash actuator is coupled to the second positioning guide such that the transverse position of the web is controllable to within a preselected dimension of the selected transverse position.

Abstract: A friction drive apparatus includes an edge detection system for determining a lateral position of a strip material advancing in a longitudinal direction. The edge detection system includes a first sensor and a second sensor for monitoring the lateral position of the strip material. The friction drive apparatus also includes instructions for automatically aligning the strip material as the strip material is advanced a predetermined aligning distance and instructions for calibrating the second sensor with respect to the first sensor to compensate for any potential discrepancies therebetween. The apparatus and methods of the present invention ensure that the strip material is properly aligned in the friction drive apparatus and limit waste of strip material during those operations.

Abstract: A tension control device for a printing press having an adjustment roller, with a web of the press passing from a supply roll of the web to the adjustment roller. Means are provided for measuring the tension on opposed sides of the web passing downstream from the adjustment roller, and means are provided responsive to the measuring means for automatically approximately equalizing the tension of the web by adjustment of the adjustment roller on one end only of the adjustment roller.

Abstract: The invention relates to an arrangement in connection with a wire guide roll of a paper machine. The arrangement comprises a wire guide roll which is arranged to guide a wire, if the wire is driven to the side from its normal track of travel. The wire guide roll is turned in the direction of travel of the wire by means of at least one actuator. The lateral position of the wire is observed by means of a guide flap monitoring the movement of the wire edge, from which guide flap the guidance information is transmitted to a control unit Which, for its part, controls said actuator. Furthermore, at least one sensor is arranged in connection with the guide flap to determine the position of the guide flap and to control the lateral exceedings of the wire.

Abstract: Method and apparatus for guiding a paper or board web in a paper manufacturing machine, a board manufacturing machine, or finishing units in connection with such machines. Web travel is guided by changing the travel position of at least one wire travelling in contact with the web such that the velocity vector of the wire at least at the point of contact of the web and the wire is directed sideways from the travel direction of the web center line when the web is brought onto the wire.

Abstract: A friction drive apparatus includes an edge detection system for determining a lateral position of a strip material advancing in a longitudinal direction. The edge detection system includes a first sensor and a second sensor for monitoring the lateral position of the strip material. The friction drive apparatus also includes instructions for automatically aligning the strip material as the strip material is advanced a predetermined aligning distance and instructions for calibrating the second sensor with respect to the first sensor to compensate for any potential discrepancies therebetween. The apparatus and methods of the present invention ensure that the strip material is properly aligned in the friction drive apparatus and limit waste of strip material during those operations.

Abstract: A conveyor system and method for steering and shifting an associated strip component to a desired transverse position includes a sensor for sensing the transverse position of the associated strip component, a shaft rotatable about an axis generally perpendicular to the direction of motion of the strip component, and a plurality of guide disks rotatably mounted on side by side sleeve bearings which are keyed to the shaft. Each of the guide disks has an inner circumferential bearing surface and an outer circumferential surface for engagement with the bottom surface of the associated strip component. Each of the guide disks is canted at a fixed angle with respect to the shaft axis. Additionally the shaft is axially movable.

Abstract: An electrophotographic imaging system including a combination erase and belt position detection system which may be employed for belt registration or image registration. In one embodiment, the system includes an erase bar having a pattern of light extending longitudinally across a photoconductor belt being moved in a first direction forming a transport path, wherein the erase bar is substantially perpendicular to the first direction. A photodetector is disposed adjacent the photoconductor belt, wherein the photodetector is responsive to light from the erase bar and provides a belt position signal representative of the position of the photoconductor belt relative to the continuous transport path, in a direction substantially perpendicular to the first direction. The belt position signal may be employed for belt steering or modulation of a laser beam representative of latent images to be scanned on the photoconductor belt.

Abstract: A position detector senses an undulating pile tuft edge position of a carpet as it is processed in a carpet making machine by detecting attenuated light passing through the carpet's primary backing material to determine the exact position of the carpet's undulating pile tuft edge at any given time. Sensor signals from the detector are digitally filtered through one pole cascaded filters to produce an average pile edge position signal which, in turn, controls actuators for secondary and primary backing material guide rolls to not only center the carpet for aligned entry into the carpet machine's tenter, but also apply the secondary backing material to the primary backing material at a precise position.

Abstract: Tire building apparatus and method wherein the cut to length tread is transported to a drum on a conveyor having laterally movable driving rollers and inverted guide rollers engaging the inner surfaces of raised shoulders of the tread. Control of the tread length is provided by measuring the length of the tread before and while it is being wrapped on the drum and then varying the stretching and rate of tread application to the drum to provide a precise splice of the ends of the tread. The position of the tread ends are controlled by a pricker bar to insure placement of the leading end on the drum and then placement of the trailing end on the drum over the leading end to provide the desired splice.

Abstract: A device for width of print adjustment of a web of material, particularly a printed web of material, including at least one register correction wheel for deflecting a web of material, the register correction wheel being assigned to the path of the web of material. An actuating unit is assigned to the register correction wheel to move the register correction wheel for remote or automatic width of print adjustment. The actuating unit is integrated into the central press control system.

Abstract: A screen printing press is provided for printing on a web having defined, successive areas and indicia provided in predetermined positions relative to each of the defined areas. The press includes a base defining a work station, a screen supported on the base for movement between a printing position overlying the work station and an interrupted position, and a web handling assembly for advancing the web along a path of travel to successively feed the defined areas of the web toward the work station. A registration system successively positions the defined areas of the web in a desired predetermined relationship to the screen as successive defined areas are brought into a position to be printed. The registration system includes longitudinal, lateral and angular shifting mechanisms for adjusting the longitudinal, lateral and angular alignment between the screen and the web.

Abstract: An apparatus for use with a printing press including a tension regulator for maintaining a substantially constant tension level on a web of printing medium passing through the printing press. The printing press has at least one dancer roller, and the tension regulator includes an actuator associated with the dancer roller for maintaining a constant biasing force on the dancer roller. The tension regulator also includes a reservoir which communicates with a first chamber of the actuator to define a second chamber larger than the first chamber. The volume of the second chamber is large enough that changes thereto are negligible to the extent that a piston of the actuator is displaced. Therefore, the pressure within the second chamber remains constant which permits a constant biasing force to be applied to the piston regardless of the displacement of the piston.

Abstract: The travel of a fabric web is corrected by an image acquisition from a region thereof including a guidance criterium which can be interrupted to produce a single row of image points, the signals of which are digitalized and compared with a reference signal by relative shifting of the stored signals in two shift registers. The number of shifts required to bring about correlation is determined as a measure of the actual position of the web and compared to a setpoint position for operation of an effector restoring the web to its set point position.

Abstract: A film registration gate assembly has a gate with focal positioning location for focal positioning of an image frame of a strip film with edge perforations. Undersized first and second pins enter a pair of transversely aligned perforations of the film to register the image frame with the positioning location. An undersized third pin enters a third perforation spaced along the film from the second pin and then pulls the film obliquely to a reference line extending between the first and second pins to nest against the first and second pins the perforations thereat and register the image frame precisely at the aperture. A plate with a window registering with the image frame and aperture clamps the film against the gate. The window, positioning location and image frame are of corresponding size and shape. The pins register the image frame precisely with the positioning location, and the plate maintains the image frame in precise focal position thereat.

Abstract: In the winding of webs of plastic films on cores, defects in the web caused by hard streaks in the wound roll are avoided or reduced by a new method of control. In this method, measurements are made of elastic properties of the web and of the average widthwise thickness distribution of the web. From these values, from measured properties of the core, and from selected initial winding conditions, including web tension, edge thickness and web oscillation, a predicted value of the combined imperfection severity function is determined. This value is compared with a pre-established tolerance; if it is outside the tolerance, winding conditions are adjusted to minimize the predicted web defects.

Abstract: A method of guiding a strip (S) of material, e.g. steel, comprises feeding the strip between a pair of spaced guide members (15), through pinch rolls (13) and optionally on to a winder (12) to be coiled. When the strip passes the upstream end of the guide members (15), in a first stage of the method, the members are moved inwardly to narrow the gap between them to a predetermined size greater than the width of the strip. When the leading end of the strip enters the pinch rolls (13), in a second stage of the method, the members move together to further narrow the gap between them. The second stage may, be governed in response to the output from sensors (17, 18) which detect the width of the strip and the position of its centre. The positions of the guide members (15) may be continuously varied to accommodate the varying width of the strip.

Abstract: A system for controlling the lateral position of a sheet of composite material as the sheet travels longitudinally through a curing oven. The system includes roller guide assemblies along the edges of the sheet. Lateral positioning of the sheet is controlled by varying the gripping of the sheet by the roller assemblies as it travels longitudinally through the oven. The degree of variable gripping is controlled by a feedback system which includes sensors located adjacent to the roller assemblies at spaced locations along the composite sheet material edge as it travels longitudinally through the curing oven.

Abstract: A relieved plastic floor tile rolling press having an automatic alignment device comprising a surface roller from which a surface substratum with plane patterns printed thereon is unwound, a pressing roller on which recessed carves shaped the same as the plane patterns are formed to form relieved patterns on the plastic tile, and a sensing device to detect the lateral deviation and also detect the longitudinal location of the surface substratum. The sensing device also comprises a sensor to detect the rotational location of the pressing roller. The information detected by the sensing device is then sent to microprocessors to adjust the lateral location of the surface substratum and eliminate the difference between the longitudinal location of the surface substratum and the rotational location of the pressing roller.

Abstract: A multi-directional system, method and apparatus for feeding stock from a coil into a press in a principal feed direction and selectively in a direction normal to the principal feed direction includes an uncoiler, a compensator, a feeder and a press arranged in series with the feeder and the compensator being engagable with the stock to feed it in the principal feed direction into the press and being shiftable transversely of the principal feed direction to shift the stock in that direction while the leading end of the stock is received within the press.

Abstract: A method and apparatus controlling the lateral position of a moving web of material having a central longitudinally extending web axis extending generally parallel to the direction of movement of the web so as to maintain the central longitudinally extending axis of the web at a substantial constant lateral position relative a fixed longitudinally extending axis associated with a fixed web alignment station based upon the detected longitudinal distance between certain portions of a series of longitudinally spaced apart, substantially identical, generally transversely extending indicia in a longitudinally extending indicia path parallel to the central longitudinal axis of the web.

Abstract: A method for controlling the position of a web moving along a given path, which is effective especially when a web travelling speed varies. In the method, the web travelling speed is detected and then a correction speed for correcting the meandering of the web is varied in accordance with the web travelling speed detected, so that the meandering of the web can be corrected with a constant accuracy independent of the variations of the web travelling speed.

Abstract: In a recorder, at least one set of marks spaced by a predetermined distance in a feed direction of a record paper are recorded on the record paper, the marks are detected by a detector while the record paper is fed, a time interval between detections of the marks is compared with a reference number of pulses applied to paper feed motors to detect a deviation, and rotations of the left and right paper feed motors are controlled to control the feed of record medium.

Abstract: A means and method for applying innerliner material to a tire building drum and more particularly to a means and method for cutting and applying the innerliner material and further allowing for stock width measurement and precise centering without the possible edge distortion of known guiding systems.

Abstract: A method and apparatus for monitoring and controlling the longitudinal and lateral deformation and the lateral position of a moving web of plastic film material which is laminated to a moving web of paper material to form a laminated composite.

Abstract: For register control when printing on a web, signals corresponding to a predetermined hidden pattern of low-amplitude density variations are superimposed on picture signals representing the image to be printed. After printing, light from elements of the printed image, with its hidden pattern, is detected by a register scanning head and the variations are correlated in a signal processor with the known variations of portions of the predetermined hidden pattern. In this way a position error signal is derived and can be used to correct the web position.

Abstract: An apparatus and method for encoding the lateral or circumferential setting within a web press of a laterally or circumferentially adjustable machine for operating on a web is provided. The machine has an element which moves linearly as the machine is adjusted, and the apparatus includes a linkage connectable to the linearly moving element. An electric signal generator is operatively connected to the linkage for operation in response to movement of the linkage. A reference point is defined for describing the setting of the machine, and a code is computed in response to the signal generated by the signal generator for designating the setting of the machine with respect to the reference point. The generated code is then displayed in an appropriate manner or used to automatically set the machine.

Abstract: Belt-like traveling guide apparatus has been provided for guiding side edges of metal strip material that is being positively advanced from, for example, an uncoiling station to a second or processing station. Side pairs of idler guide rolls are employed for maintaining the material in a planar relation during its movement, and idler head and tail and upper and lower guide rollers are employed for maintaining one side face of each of a pair of continuous belts in synchronized movement engagement with opposite side edges of the material to thereby protect them and, at the same time, positively and accurately align the material during its forwardly advancing movement between the stations.

Abstract: An applicator (10) for applying a string or tape (72) coated with a thermoplastic adhesive to a moving substrate (14) is the subject of this patent application. The applicator (10) includes a first roll (28) about which the string (72) is fed. Thereafter, the string (72) is led over a second roll (30). The string (72) is, successively looped about both of the rolls (28, 30) a number of times. One of the rolls (28) is heated by use of a plurality of heating elements (26) embedded in a casting (24) surrounding the roll (28). The second roll (30) is pivotable about an axis and in a plane generally parallel to an axis of elongation of the first roll (28). Loops of the string (72) can, thereby, be spaced axially along the rolls (28).

Abstract: A rotating magnetic sensor which detects a ferrous line on a web of material and compares it with a reference registration line to either speed up or slow down the speed of the section of web material on which the ferrous line is located. The sensor employs a pole-piece, a coil, a permanent magnet and two signal wires.

Abstract: A tape tracking device for a tape recorder comprises first and second position detection heads disposed such that one of the first and second position detection heads is upwardly displaced by its one upper half from a track on which a signal is recorded and reproduced by a record/reproduce head and the other is downwardly displaced by its one lower half from the track, a DC reversible motor rotated according to a difference between the reproduced signals of said first and second position detection heads, and a post tiltable by an eccentric cam attached to a shaft of the motor and adapted to impart a pressure in the up and down directions to correct a deviation of the tape in the direction of the width of the tape.