Abstract: Disclosed are a corrugated paperboard cutting control apparatus and a corrugated paperboard cutting control method. Under control of a cutter control device (110), a camera (CA) images a flute arrangement state in a cut section LE of a corrugated paperboard after being cut. A lower-level management device (100) acquires a result of the imaging from the camera.

Abstract: A dispenser for repeatedly discharging a predetermined length of a continuous web of material, especially paper towels, comprises a feed roller (14) with the continuous web of material wound thereon and a cutting drum (20) incorporating a cutting device (24, 32), the continuous web of material being directed in contact to at least part of the cutting drum (20). The dispenser is characterized in that the cutting device (24, 32) comprises at least two cutting knives (24) with cutting blades (26), which cutting blades (26) are operable between an active, extended position projecting beyond the outer circumferential surface of the cutting drum (20), and an inactive retracted position; wherein each cutting knife (24) is provided with a cam follower (44) engaging a stationary cam path (46) of a camming mechanism (40).

Abstract: Torque necessary for cutting band-like paper is properly distributed to both of the preceding motor and the following motor, thereby making it possible to accurately cut the band-like paper.

Abstract: To shorten the processing time in modern plants for cutting away pieces or sections from a continously moving endless material, e.g. a glass strip, one after the other by flying cutting the cutting bridge carrying the cutting device (6) is accelerated until at a speed within a predetermined tolerance range of the feed speed of the continuously running endless material. Then the cutting bridge speed is synchronized for each piece or section to be cutaway and the cutting away of each piece or section takes place after the synchronization. To attain a very high precision cutting the spacing of the front cut edge formed when the previous piece or section is cut away from the cutting device is measured by means of an image-taking device (7) prior to cutting away of the next piece or section. Then the measured spacing is compared with a set value for the spacing and the speed of the cutting bridge is synchronized or fine tuned according to the comparison prior to cutting away the next piece or section.

Abstract: To shorten the processing time in modern plants for cutting away pieces or sections from a continously moving endless material, e.g. a glass strip, one after the other by flying cutting the cutting bridge carrying the cutting device (6) is accelerated until at a speed within a predetermined tolerance range of the feed speed of the continuously running endless material. Then the cutting bridge speed is synchronized for each piece or section to be cutaway and the cutting away of each piece or section takes place after the synchronization. To attain a very high precision cutting the spacing of the front cut edge formed when the previous piece or section is cut away from the cutting device is measured by means of an image-taking device (7) prior to cutting away of the next piece or section. Then the measured spacing is compared with a set value for the spacing and the speed of the cutting bridge is synchronized or fine tuned according to the comparison prior to cutting away the next piece or section.

Abstract: To shorten the processing time in modern plants for cutting away pieces or sections from a continously moving endless material, e.g. a glass strip, one after the other by flying cutting the cutting bridge carrying the cutting device (6) is accelerated until at a speed within a predetermined tolerance range of the feed speed of the continuously running endless material. Then the cutting bridge speed is synchronized for each piece or section to be cutaway and the cutting away of each piece or section takes place after the synchronization. To attain a very high precision cutting the spacing of the front cut edge formed when the previous piece or section is cut away from the cutting device is measured by means of an image-taking device (7) prior to cutting away of the next piece or section. Then the measured spacing is compared with a set value for the spacing and the speed of the cutting bridge is synchronized or fine tuned according to the comparison prior to cutting away the next piece or section.

Abstract: An arbitrarily positioned lateral perforation forming apparatus can form a lateral perforation at an arbitrary position or selected position in a continuous web paper at high precision by a simple control system with small control amount. A lateral roulette cylinder projecting a lateral roulette edge on its outer periphery, arranged on one side of the continuous web paper and rotating in a traveling direction of the continuous web paper; and a receptacle cylinder projecting an edge projecting portion opposing to the lateral roulette edge of the lateral roulette cylinder on its outer periphery, arranged on the other side of the continuous web paper, rotating in the traveling direction of the continuous web paper, and forming a lateral perforation in the continuous web paper when the edge receptacle portion opposes the roulette edge; are rotated in synchronism with traveling of the continuous web paper in the drive system.

Abstract: A ribbon is cut into signatures with a cutting cylinder having a fixed diameter and rotating at a variable angular velocity. During the cutting operation, the cutting cylinder rotates at an angular cutting velocity that is substantially equal to the constant velocity of the ribbon. The angular velocity of the cutting cylinder is varied between the cutting operations in order to cut signatures of a desired length. A cutting cylinder system is also provided.

Abstract: The invention is an apparatus for cutting metal sheet having two rotatable drums, wherein the metal sheet passes between the drums for cutting. Each of the drums has a cutting blade moved into and out of cutting position by an axial actuator rod. The cutting blade includes two sets of rollers bearing against one of a pair of profiled side surfaces of the axial actuator rod.

Abstract: To shorten the processing time in modern plants for cutting away pieces or sections from a continously moving endless material, e.g. a glass strip, one after the other by flying cutting the cutting bridge carrying the cutting device (6) is accelerated until at a speed within a predetermined tolerance range of the feed speed of the continuously running endless material. Then the cutting bridge speed is synchronized for each piece or section to be cutaway and the cutting away of each piece or section takes place after the synchronization. To attain a very high precision cutting the spacing of the front cut edge formed when the previous piece or section is cut away from the cutting device is measured by means of an image-taking device (7) prior to cutting away of the next piece or section. Then the measured spacing is compared with a set value for the spacing and the speed of the cutting bridge is synchronized or fine tuned according to the comparison prior to cutting away the next piece or section.

Abstract: An apparatus for cutting a movable sheet of web material onto predetermined lengths including a pair of upper and lower cutoff rolls and a retractable cutoff blade. A slide mechanism is utilized to move in a direction transverse to the movement of the sheet of web material to selectively engage and disengage the cutoff blade.

Abstract: A method and an arrangement for operating a rotating starting shear operating in a start-stop operation on rolling stock travelling at different speeds in wire mills, light-section mills, medium plate mills and billet mills, wherein the shear, whose gear system is connected through a coupling to a drive motor, is accelerated from the position of rest to approximately rolling speed and, after the cut has been carried out, is stopped again. A gear mechanism is arranged between the gear unit of the shear and the drive motor, wherein torsion-proof couplings are arranged between the gear unit of the shear and the gear mechanism and between the gear mechanism and the drive motor.

Abstract: A rotary punching device for punching a hole on a sheet includes: a first rotary shaft having an outer peripheral surface; a punch mounted on the outer peripheral surface of the first rotary shaft; a second rotary shaft arranged in parallel with the first rotary shaft, the second rotary shaft having an outer peripheral surface; a die mounted on the outer peripheral surface of second rotary shaft; a motor connected to the first and second rotary shafts to synchronously drive the first and second rotary shafts such that the punch and the die are engaged with each other within a predetermined rotational angle range; a sheet feeding mechanism for feeding the sheet into between the first and second rotary shafts at a constant sheet feeding speed to punch the sheet by the punch and the die; and controller for controlling the rotation speed of the motor referring to the sheet feeding speed.

Abstract: A machine for cutting lengths of strip or tube from a moving length of strip or tube includes a carriage reciprocable in the direction of movement of the strip and mounting a cutter mechanism operable to sever the strip. The carriage is driven by a motor through a crank mechanism having a rotary input member. The motor speed is controlled so that during a substantial portion of one revolution of the input member the motor speed is constant and during the remaining portion of the one revolution the motor speed is controlled so that the linear speed of the carriage corresponds to that of the strip to be cut. During the latter period the motor speed is controlled in accordance with a plurality of secant values contained in a map.

Abstract: An apparatus is of such a structure that it is possible to cut with flying shears, at great cutting accuracy, varying lengths under program control, this apparatus being of a compact construction and operating without mechanical intermediate members to be engaged and disengaged or to be exchanged as is the case with conventional pendulum shears. For this purpose, an eccentric (5) is provided for the oscillating drive of an oscillating yoke (2), as well as for carrying out the cutting stroke on both sides of the yoke (2). This eccentric is coupled with a top cutter bar (4) guided in the oscillating yoke (2) to be movable upwards and downwards, and is driven by controlled drive mechanisms (10) by way of associated gear systems in correspondence with the strip speed and the length of the strip material (6) to be cut off.

Abstract: A control system is established wherein, when there is a flow of continuous web material (2), an identification phase is provided by increasing the torque signal to a pull roll motor (13) until slippage between the pull roll (12) and continuous web is created at a breakaway torque point, the value of which is measurable. The pull roll motor is then caused to be driven by a signal which creates a motor torque output which is of a value less than the breakaway torque point. Thus, no slippage can occur. As the motor is driven at the lower torque value, a calibration phase is entered wherein an encoder output of the pull roll is properly equated with that of a measuring wheel (9), this phase occuring at a time when there can be no slip between the web-roll interface. The identification-calibration process can be repeated as often as desired.

Abstract: A method of controlling a rotary cutter in which material of long size such as steel plate or corrugated cardboard moving between a pair of rotating shears each having a shearing edge on its peripheral surface is cut in a predetermined cut length by controlling a motor for driving the shears, wherein the provision of steps of calculating an optimum shear position with minimum energy on the basis of moving quantity of the material, calculating minimum optimum shear velocity and optimum motor current on the basis of the moving quantity of the material and moving velocity of the material, and rotating the shears so that the calculated condition is realized. The shear position and the shear velocity of the rotary cutter and the drive motor current are selected to the optimum condition with minimum energy and operation can be made under the condition of minimum energy.

Abstract: A cutting apparatus cuts a plate such as a corrugated cardboard or a steel plate into a predetermined size with a knife cylinder and includes a knife cylinder driver for controlling rotation speed of the knife cylinders by motors.

Abstract: A tube cutoff machine for cutting a tube to precise lengths, which tube may be exiting from a tube mill at relatively high speeds. The tube cutoff machine includes a frame which supports a carriage for generally linear reciprocal movement parallel to the linear path of movement of the tube, the carriage in turn supporting a tube shearing apparatus. The carriage is reciprocated by a crank drive mechanism and additional connecting structure, which insures that the carriage will move at a constant linear speed for a duration of time sufficient to shear the tube as the carriage moves from a first location to a second location. The additional connecting structure includes a bell crank having an intermediate portion which is pivotally secured to the carriage, one end of the bell crank being secured to an end of a connecting rod of the crank drive mechanism, and the other end of the bell crank being provided with a cam follower which is caused to engage a stationary cam carried by the frame.

Abstract: A rotary notcher is used in a continuous strip processing line for metallic strip to cut out side or edge portions of the joined strips in the welded area. When an arc welder is used, welding may be done only in the center area of the seam remote from where the notching occurs. The rotary notcher is activated in a time relationship with the welding process to notch along the joined seam. The notcher comprises two opposed housings along longitudinal edges of the strip for cantileverly supporting a cooperative pair of rotatable knife drums each having cooperative arcuate surfaces upon which an arcuate knife is mounted, and cooperative flat sections for allowing the strip to travel therebetween without hitting against the drums. The knife has a continuous gradual slope with a desired depth formed between the two extremes of the edge of the knife to effect a smooth continuous cut.

Abstract: A flying cutoff system for tubing and the like wherein a cutting die mechanism (46) is driven by a threadless shaft (36) and traveler assembly (44) powered by a reversible DC motor (40). Die set position relative to the press is accurately monitored even in the presence of slip in the drive.

Abstract: A cylindrical, rotating knife is positioned to cut a moving body of flat sheet into predetermined lengths. An electric motor rotates the cylindrical knife. The knife motor is controlled by a system responsive to the travel of the sheet passing under the knife and the rotation of the knife, itself. The two measurements are fed to a control circuit to produce an output analog electrical signal to the knife motor which varies the rotational speed of the knife during the cutting cycle to avoid wastage of the sheet as it is cut.

Abstract: In a reciprocating travelling shear in which a tool post travels reciprocatingly in the travelling direction of a travelling material and a cutting tool held by the tool post is made to move vertically by press mechanism to cut the material, the press mechanism is driven by a first DC motor, which is controlled by first numerical control means, the reciprocating travelling of the tool post is controlled by a second DC motor, which is controlled by second numerical control means, and the second numerical control means supplies a cut command to the first numerical control means thereby to drive the first motor when the tool post has travelled a predetermined distance.

Abstract: A device for converting the rotary motion of a crank mechanism into the linear motion of a slide block. In order to enable the slide block to make a constant velocity motion in an angular range required by the crank pin and extending from the crank pin in opposite directions, the device is designed to control the angular velocity of the crank mechanism along the ideal angular velocity variation curve.

Abstract: A pendulum-type flying shear having a speed range of a high speed to a low speed for shearing a hot rolled material having a large cross section in which there are provided vertically movable upper and lower cutting blades within a frame mounted on a crank shaft and the blades are moved towards and away from each other to shear the material while the frame is oscillated. Particularly, while the crank shaft is rotated at a constant speed, the oscillating speed of the frame is synchronized with the speed of movement of the material to be sheared and speed synchronizing apparatus including a gear device and the like is interposed between the oscillating device and the driving device so that a good shearing performance can be obtained with a small capacity of the driving device.

Abstract: An arrangement for controlling the advancing device of a machine for repetitive operations, especially for controlling the advancing speed of a slide carrying a cutting device of a cutting machine for cutting an elongated workpiece, such as a profile emanating at a predetermined speed from an extrusion press, a straightening machine or the like, into sections of uniform length.

Abstract: An improved method and apparatus for cutting segments from a continuously moving stock piece are disclosed wherein a cut-off press is accelerated to exceed the speed of the stock piece and to substantially eliminate a pushing force by the stock against a positive engagement means. The force of acceleration is reduced and controlled to maintain a minimum bias in the direction of the stock movement by the positive engagement means when the cut-off press attains a velocity equivalent to the moving stock piece. The stock piece is severed into accurate length segments during reciprocal movement cycles of the cut-off press. Back pressure on the stock piece is substantially eliminated by establishing a positive pulling engagement between the cut-off press and the stock piece when moving in the same direction during the reciprocal movement cycles.

Abstract: The invention relates to a method of cutting off sections of a grating web of any desired length by means of shears. In the event there occurs a gap between the cross-bars of a welding machine, wherein the occurrence of the gap is established by a computer, so as to enable the introduction of the cutting blades of the shears into the mesh of the grating web, the grating web is cut in response to a signal from the computer.

Abstract: A rotary shear machine is described having a plurality of oppositely rotating hollow cylinder pairs carrying helical blades for transversely shearing several continuously moving webs perpendicular to their directions of travel. Each cylinder pair includes a separate reversible DC motor drive and an electronic digital control system regulating the motor drive for cutting sheets of predetermined lengths from the respective webs. A unique feature of the machine is a web feed and pull roller system having an independent drive for engaging and feeding the continuously moving webs into the respective helical blade shears and pulling sheets from the respective shears as they are cut from the continuously moving webs. The upstream feed roller system includes means for sensing web velocity and generating electronic pulses for input into the control means regulating the respective reversible DC motor drives driving the respective helical blade shears.

Abstract: A continuous material, such as a block of urethane foam, is moved at a constant speed in a longitudinal direction on an infeed conveyor. A stationary cutting platen is situated at the end of the infeed conveyor. A cutting saw is movable in the longitudinal and vertical direction above the platen. A piece of the material, once cut, is carried away by an outfeed conveyor adjacent the platen. The movement of the conveyors and the longitudinal and vertical movements of the cutting saw are coordinated so that the cut of the material is always completed over the cutting platen.

Abstract: Continuously cast plastic strip has interspaced marks or defects with lengths of unmarked usable strip therebetween. To obtain a maximum possible yield of sheets from such strip, the lengths of the portions between the marks or defects are measured and cut into sheets of two or more different lengths, the cutting being such as to produce the maximum yield of sheets of either or all lengths, singly or in combination, which can be obtained from the length cut. This procedure reduces the loss or waste due to the marks or defects, to a minimum. A special system is provided for this practice and for cutting out the marks or defects between the unmarked strip portions free from defects, with a minimum of loss or waste. Other features are involved.

Abstract: An endless chain is caused to become locked to and driven by a work-carrier forming part of a conveyor. The chain drives a signal generator whose output represents the advance of the work-carrier past a robot and the generated signal is combined with program control signals of the robot to modify the operation of the robot so that the robot can operate on a moving work-piece whereas the robot's program alone would cause robot operations on a work-piece that remains at-rest.

Abstract: A rotary veneer clipper has a pair of cutting blades spaced 180.degree. apart on a rotary clipper shaft for cutting cooperation with a roller anvil below and parallel to the clipper shaft and over which sheet material passes. The clipper shaft rotates intermittently on signal to cause one of its blades to clip the sheet. The clipper shaft is driven by a pair of pneumatic drive cylinders mounted one to each of two crank arms connected to a common drive shaft. The cylinders stroke once simultaneously to rotate the drive shaft alternately in opposite directions through 90.degree. upon each successive clip signal. When the drive shaft rotates in one direction, a first gear train transmits power from the drive shaft through a first one-way clutch to the clipper shaft to rotate one of the blades downwardly and through 180.degree. to clip the sheet.