JP2006198753A - Trimmed chip retaining device, and trimming apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a trimming apparatus which improves its trimming workability when a band-shaped object is trimmed. <P>SOLUTION: According to the structure of the trimming apparatus, while a rear end of a trimmed chipping 19 is retained by a trimmed chip retaining device 26, a rear end of a preceding trimmed chip 19 can be connected to a front end of the subsequent trimmed chip 19, and therefore connection of the two trimmed chip 19 is facilitated. For example, even if the trimmed chip 19 is stored in a trimmed chip pit 28, by gripping the rear end of the trimmed chip 19 before storing thereof in the trimmed chip pit 28, the rear end of the preceding trimmed chip 19 can be very easily found. In this manner, the connection work of the two trimmed chip 19 is facilitated, and therefore preparation time necessary for continuously winding the trimmed chip 19 can be shortened. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a trimming facility for excising both ends in the width direction of a band-like object.

  In order to adjust the non-uniformity of the plate width dimension generated in the steel plate during the rolling process, side trimming may be performed by cutting the both ends of the steel plate in the steel plate width direction. In this case, the trimming apparatus cuts both end portions in the steel plate width direction of the steel plates to be passed by a rotating round blade or the like. The cut portion is wound around the scrap boller 5 as trim waste. The trim scraps wound around the scrap boiler 5 are reused as a steel plate material by being removed from the scrap boiler 5. As such a prior art, it is disclosed by patent document 1, for example.

  FIG. 10 is a cross-sectional view showing a trimming apparatus 1 in the prior art. In FIG. 10, time elapses in the order of FIG. 10 (1) to FIG. 10 (3). A trim scrap pit 4 in which trim scrap 3 is accommodated is formed below the trimming apparatus 1. In the trim scrap pit 4, a trim scrap moving path 6 for the trim scrap 3 to move to the scrap borer 5 is formed. The trim scrap 3 cut from the steel plate 2 by the trimming device 1 is separated from the steel plate 2 and falls into the trim scrap pit 4 by gravity. The trim debris 3 that has fallen into the trim debris pit 4 passes through the trim debris movement path 6 and is taken up by the scrap borer 5.

  When continuously performing side trimming in a batch line not provided with a welding machine for welding a plurality of steel plates, the steel plates 2A and 2B are supplied to the trimming device 1 independently. Accordingly, the first trim scrap 3A of the preceding steel plate and the second trim scrap 3B of the subsequent steel plate are not continuous, and a predetermined interval is formed. In order to continuously wind up the trim scraps 3A and 3B of the steel plates 2A and 2B around the scrap borer 5, the preceding steel plate 2A is stopped in a state where the conveyance of the steel plate 2 and the rotation of the scrap borer 5 are stopped. It is necessary to connect the rear end portion 7 of the first trim debris 3A generated in step 1 and the front end portion 8 of the second trim debris 3B generated in the following steel plate 2B.

Japanese Patent Laid-Open No. 5-4112

  As shown in FIG. 10 (1), since the first trim scrap 3A and the second trim scrap 3B are not continuous, the first trim scrap 3A is completely dropped on the trim scrap pit 4, and then The tip 8 of the second trim scrap 3B enters the trim scrap pit 4. When the worker confirms that this state has been reached, the conveyance of the steel plate 2 and the rotation of the scrap borer 5 are manually stopped as shown in FIG.

  In the state shown in FIG. 10 (2), the worker enters the trim scrap pit 4 and searches for the rear end portion 7 of the first trim scrap 3A and the front end portion 8 of the second trim scrap 3B. Next, as shown in FIG. 10 (3), the end portions 7 and 8 of the searched trim scraps 3A and 3B are connected to each other and come out from the trim scrap pit 4. Then, the conveyance of the steel plate 2 and the rotation of the scrap borer 5 are resumed.

  As described above, in the prior art, it is necessary for an operator to go down to the trim scrap pit 4 and perform the connecting operation of the trim scraps 3A and 3B. Further, it is difficult to find the rear end portion 7 of the first trim scrap 3A and the front end portion 8 of the second trim scrap 3B from the trim scrap lump of the trim scrap pit 4. Further, it is necessary to carefully perform the connecting operation at the trim scrap pit 4 so as not to be injured with the trim scraps 3A and 3B. Due to these factors, it takes time to connect the trim scraps 3A and 3B, and there is a problem that workability is poor.

  Even when trimming is performed on a continuous line provided with a welding machine, trim debris may be split into two at the welding point where the two steel plates 2A and 2B are connected. In this case, the worker needs to perform the same operation as that of the batch line described above, and there is a problem that the workability is also poor.

  Accordingly, an object of the present invention is to provide a trimming facility that can improve the trimming workability of a strip-like object.

  The present invention is provided in a trimming facility that continuously cuts a width direction end of a strip-shaped object as trim debris by a trimming device, and continuously winds the cut trim debris around a scrap borer. A trim dust holding device characterized by gripping an end portion.

  Further, the present invention is characterized in that when it is determined that the trim scrap is separated from the strip-shaped object, the rear end portion in the longitudinal direction of the trim scrap is gripped.

  Further, the present invention is characterized in that the rear end portion of the trim scrap in the longitudinal direction is gripped before the rear end portion of the trim scrap in the longitudinal direction reaches the region in which the trim scrap is accommodated.

The present invention also includes a transport device that transports a band-shaped object;
A trimming device that cuts the end in the width direction of the strip-shaped object conveyed by the conveying device as trim debris; and
A winding device for continuously winding trim scraps on a scrap boller;
It is a trimming equipment characterized by including a trim scrap pressing device that holds a rear end portion in the longitudinal direction of trim scraps separated from a strip-shaped object.

  Further, the present invention is characterized in that the trim scrap holding device grips the rear end portion in the longitudinal direction of the trim scrap before the rear end portion in the longitudinal direction of the trim scrap reaches the region in which the trim scrap is accommodated.

Further, the present invention provides a detecting means for detecting that the trim scraps are separated from the band-shaped object,
And a control device for controlling the trim dust holding device,
When the control device determines that the trim debris has been separated from the band-shaped object based on the detection result of the detection means, the trim debris holding device grips the rear end portion in the longitudinal direction of the trim debris separated from the band-shaped object. It is characterized by that.

In the present invention, the control device controls the transport device and the winding device, and is given an operation command.
Based on the detection result of the detection means, after judging that the trim scraps have been separated from the band-like object and stopping the winding device, when reaching a predetermined time, the operation of the conveying device is stopped,
When a restart operation command is given, the trim scrap holding device releases the trim scrap and restarts the operations of the transport device and the winding device.

  According to this invention of Claim 1, the width direction edge part of a strip | belt-shaped object is continuously cut | disconnected as trim waste with a trimming installation. The cut trim scraps are wound up on a scrap boller. In order to continuously take up the trim scraps around the scrap borer, it is necessary to perform an operation of connecting the leading end portion of the trailing trim scrap to the rear end portion of the preceding trim scrap.

  According to the present invention, the rear end portion of the preceding trim waste and the front end portion of the subsequent trim waste can be connected in a state where the rear end portion of the trim waste is gripped by the trim waste holding device. One trim piece can be easily connected. For example, even when trim debris is accommodated in the trim debris pit, the rear end of the preceding trim debris can be very easily grasped by gripping the rear end of the trim debris before being accommodated in the trim debris pit. Can be found. Further, the end portions of the two trim scraps can be connected to each other without an operator having to enter and leave the trim scrap pit.

  By facilitating the connecting operation of the trim scraps in this way, it is possible to shorten the preparation time necessary for continuously processing the trim trim scraps. As a result, the trimming workability of the band-shaped object can be improved, the number of band-shaped objects that can be trimmed per unit time can be increased, and the productivity can be improved.

  According to the second aspect of the present invention, the trim scrap pressing device determines the trim scrap gripping timing without requiring a grip command by the operator. When it is determined that the trim scrap holding timing has been reached, the trim scrap holding device automatically grips the trim scrap. Accordingly, the operator does not always have to visually check the trim scrap state in order to determine the trim scrap grip timing, and can perform the trim scrap state monitoring operation and other operations in parallel. This can improve convenience.

  According to this invention of Claim 3, the longitudinal direction rear-end part of trim waste can be hold | gripped before the area | region where trim waste is accommodated. As a result, the operator moves to the area where the trim waste is accommodated, and it is not necessary to perform the operation of connecting the trim waste in the area where the trim waste is accommodated. it can.

  For example, trim debris may be accommodated in a trim debris pit formed underground than the position of the trimming apparatus. In this case, according to the present invention, the operator can perform the operation of connecting two pieces of trim waste without having to bother to get down to the trim waste pit.

  According to this invention of Claim 4, while the strip | belt-shaped object is conveyed by a conveying apparatus, the edge part in the width direction is continuously cut | disconnected as trim waste by a trimming apparatus. When the strip-shaped object passes through the trimming device, trim debris separates from the strip-shaped object and separates from the trimming device. The winding device collects trim debris by continuously winding the trim debris separated from the belt-like object around the scrap boiler in the longitudinal direction. By connecting the leading edge of the trailing trim scrap to the trailing edge of the leading trim scrap, the winding device winds the trailing trim scrap as soon as the leading trim scrap is wound. Can be taken.

  According to the present invention, when the preceding trim scraps are separated from the strip-shaped object, the trim scrap pressing device grips the rear end portion of the trim scraps. Therefore, the operator can connect the rear end portion of the preceding trim waste with the front end portion of the subsequent trim waste in a state where the rear end portion of the trim waste is held by the trim waste pressing device. One trim piece can be easily connected.

  Thus, by facilitating the connecting operation of the two trim scraps, it is possible to shorten the preparation time required for continuously winding the trim trim scraps around the scrap borer. As a result, the trimming workability of the band-shaped object can be improved, the number of band-shaped objects that can be trimmed per unit time can be increased, and the productivity can be improved.

  According to this invention of Claim 5, the longitudinal direction rear-end part of trim waste can be hold | gripped before the area | region where trim waste is accommodated. As a result, the operator moves to the area where the trim waste is accommodated, and it is not necessary to perform the operation of connecting the trim waste in the area where the trim waste is accommodated. it can.

  According to the sixth aspect of the present invention, the control device determines the trimming scrap holding timing based on the detection result of the detection means. The trim scrap holding device grips the trim scraps in accordance with a command from the control device. Accordingly, the operator does not always have to visually check the trim scrap state in order to determine the trim scrap grip timing, and can perform the trim scrap state monitoring operation and other operations in parallel.

  According to the seventh aspect of the present invention, the control device determines that the trim debris has been separated from the strip-like object, and causes the trim debris holding device to grip the trim debris and stop the winding device. Thereby, it is possible to prevent a trim force from being generated in the trim scrap held by the trim scrap pressing device, and to prevent the trim scrap from breaking.

  Further, by operating the conveying device until a predetermined time is reached, the longitudinal direction front end portion of the subsequent trim waste approaches the rear end portion in the longitudinal direction of the trim waste held by the trim waste pressing device. Then, when the predetermined time is reached, the trailing trim scraps are stopped by stopping the conveying device. As a result, the connecting operation can be performed in a state in which the rear end portion of the preceding trim waste and the front end portion of the subsequent trim waste are stopped at close positions, and the operator can connect the two trim wastes. Can be easily performed.

  Further, when two trim pieces are connected and a restart operation command is given from an operator or the like, the control device releases the grip of the trim pieces by the trim piece pressing device and resumes the operations of the transport device and the winding device. . Therefore, the operator can resume the trimming work and the winding operation of the trim waste immediately by connecting the trim waste and giving a restart operation command.

  FIG. 1 is a block diagram showing a trimming facility 20 according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing a part of the trimming apparatus 20. The trimming equipment 20 is equipment for adjusting the width direction dimensions of the steel plate 21 by continuously cutting both ends in the width direction of the steel plate 21 that is a band-like object. In the present embodiment, the trimming facility 20 performs so-called side trimming in which both end portions in the width direction are cut as trim debris 19 in order to adjust the unevenness of the plate width dimension generated in the steel plate 21 in the rolling process.

  A case where the trimming facility 20 is provided in a batch line where no welding machine is provided will be described below. A plurality of steel plates 21 are continuously supplied to the trimming device 20. The steel plate 21 is conveyed along the longitudinal direction X thereof. The plurality of steel plates 21 are transported at intervals d in the longitudinal direction X. Accordingly, trim scraps 19 generated from each steel plate 21 are separated from each other.

  The trimming facility 20 grips the trim scraps 19, a transport device 22 that transports the steel plates 21, a trimming device 23 that trims the steel plates 21, a winding device 25 that continuously winds the trim scraps 19 around the scrap boiler 24, and the trim scraps 19. Including a trim scrap pressing device 26 and a control device 27.

  Further, the trimming facility 20 is formed on the downstream side of the trimming device 23 in the transport direction, and below the trimming device 23, trim trim pits 28 serving as a region in which trim scraps 19 are temporarily stored are formed. The trim scrap pit 28 is provided so as to be immersed from the floor surface on which the worker normally works. The trim scraps 19 cut from the steel plate 21 by the trimming device 23 are separated from the steel plate 21 and fall downward, and are accommodated in the trim scrap pits 28. The trim waste pit 28 is formed with a trim waste movement passage that communicates with a space where the scrap borer 24 is disposed. When the scrap boiler 24 rotates with the longitudinal tip of the trim debris 19 fixed to the outer periphery of the scrap borer 24, the trim debris 19 moves along the trim debris movement path and is taken up by the scrap borer 24. The trim scraps 19 wound around the scrap borer 24 are removed from the scrap borer 24 and reused as a steel plate material.

  Specifically, the transport device 22 includes roll pairs 30 and 31 provided before and after the trimming device 21 with respect to the steel sheet transport direction X, and a motor that serves as a rotating unit that rotationally drives each roll pair 30 and 31. Composed. The roll pairs 30 and 31 are configured by a first roll 32 disposed on one side in the thickness direction of the steel plate 21 to be transported and a second roll 33 disposed on the other side in the thickness direction of the steel plate 21 to be transported. . Each of the rolls 32 and 33 has an axis extending along the width direction Y of the steel plate 21 to be transported, and is configured to be rotatable around the axis. The distance between the axes of the first roll 32 and the second roll 33 can be adjusted. The rotating means rotates at least one of the first roll 32 and the second roll 33. In a state where the steel plate 21 is sandwiched between the first roll 32 and the second roll 33, the rolls 32 and 33 are rotated by the rotating means, whereby the steel plate 21 is conveyed in the longitudinal direction X. In this way, the transport device 22 allows the trimming device 23 to pass through the steel plate 21 to be transported.

  The trimming device 23 includes a pair of rotating round blade pairs 34 and 35 disposed on both sides in the width direction of the steel plate 21 to be conveyed, pressing means for applying force in the direction in which the rotating round blades 34 and 35 are close to each other, and trim dust Guiding means 36. The rotary round blades 34 and 35 have an axis extending along the width direction Y of the steel plate 21 to be conveyed, and are configured to be rotatable around the axis. The rotating round blades 34 and 35 are disposed so as to be shifted from each other in the width direction, and the steel plate 21 passes between the rotating round blades 34 and 35. The rotating round blades 34 and 35 are given a force by the pressing means, give a shearing force to the steel plate 21, and cut both ends in the width direction of the steel plate 21. In the present embodiment, the rotating round blades 34 and 35 are rotationally driven by the rotating means so as to rotate in accordance with the movement of the steel plate 21.

  The guiding means 36 guides the trim trim 19 that has been cut toward the trim scrap pit 28. The trim waste 19 guided by the guide means 36 falls into the trim waste pit 28 by its own weight. In this way, the trimming device 23 continuously cuts both ends in the width direction of the steel plate 21 conveyed by the conveying device 22 as trim debris 19 and guides the trim trim 19 to the trim debris pit 28.

  The winding device 25 includes a scrap borer 24 that is formed in a cylindrical shape, and a motor that serves as a rotational drive unit that rotationally drives the scrap borer 24. One end of the trim scrap 19 is fixed to the outer peripheral portion of the scrap borer 24. The scrap borer 24 is configured to be able to remove the trimmed scrap 19 wound up.

  The trim scrap pressing device 26 includes a receiving portion 40, a pressing portion 41, a mounting plate 45, and an air cylinder 42 that serves as a displacement unit that moves the pressing portion 41. The receiving portion 40 is provided on the trimming device side in the opening 39 of the trim scrap pit 28. The air cylinder 42 is disposed on the downstream side in the transport direction with respect to the receiving portion 40. The pressing portion 41 and the mounting plate 45 are formed to be movable in the transport direction X. The pressing portion 41 and the mounting plate 45 are moved to the upstream side in the transport direction by the air cylinder 42, thereby approaching the receiving portion 40 and closing the trim waste pit 28. Moreover, the holding | suppressing part 41 and the mounting board 45 move away from the receiving part 40 by moving to the conveyance direction downstream side with the air cylinder 42, and open | release the trim waste pit 28. FIG. Before the trim scrap 19 is completely accommodated in the trim scrap pit 28, the trim scrap 19 can be gripped by the pressing portion 41 and the receiving portion 40 by the pressing portion 41 moving toward the receiving portion 40. . At this time, the trim scraps 19 are gripped in a state of protruding from the trim scrap pits 28.

  The control device 27 controls the transport device 22, the trimming device 23, the winding device 25, and the trim waste pressing device 26, and gives an operation start command and an operation stop command for each of these devices. Each device given the operation start command from the control device 27 starts operation, and each device given the operation stop command stops operation. The control device 27 can give an operation command to each device individually.

  For example, the control device 27 is realized by a computer including a CPU (Central Processing Unit), a memory, and an input / output interface. The CPU can control each device according to a predetermined procedure by executing a program stored in the memory. The input / output interface provides information from each device or the like to the CPU, and provides the calculation result of the CPU to each device.

  In addition, the trimming facility 20 includes a detection unit 43 that determines that the trim scrap 19 has been separated from the steel plate 21. In the present embodiment, the detection means 43 can detect the longitudinal direction rear end portion 18 of the preceding trim scrap 19 and the longitudinal direction front end portion 17 of the subsequent trim scrap 19. The detection means 43 gives the detection result to the control device 27. In addition, the trimming facility 20 includes an input unit 44 for inputting a restart operation command or the like from an operator or the like. The input means 44 gives the information to the control device 27 when a restart operation command or the like is given by an operator or the like.

  FIG. 3 is a plan view showing the trim waste pressing device 26, and FIG. 4 is a cross-sectional view showing the trim waste pressing device 26. The receiving part 40 and the pressing part 41 extend parallel to each other in the width direction Y of the steel plate 21 to be conveyed, are formed larger than the width direction dimension of the steel plate 21, and are formed symmetrically with respect to the center axis L1 in the width direction of the steel plate. . In the present embodiment, the air cylinder 42 is disposed along the central axis L <b> 1 in the width direction of the steel plate 21. The cylinder tube of the air cylinder 42 is fixed to a predetermined floor, and the tip portion of the piston rod is fixed to the mounting plate 45 or the pressing portion 41.

  The mounting plate 45 is formed in a plate shape and is provided on the downstream side in the transport direction X from the pressing portion 41. The mounting plate 45 is formed so as to be movable in the conveying direction X of the steel plate 21 together with the pressing portion 41. The mounting plate 45 is formed larger than the width-direction Y dimension of the steel plate 21, and covers the opening 39 of the trim scrap pit 28 in a state where the pressing portion 41 is in contact with the receiving portion 40. The mounting board 45 is formed so that an operator can mount it. In the present embodiment, the mounting board 45 is formed in a lattice wire net shape in which a plurality of through holes are formed. As a result, the operator can visually observe the state of the trim scrap 19 accommodated in the trim scrap pit 28, and the convenience can be improved. Moreover, the connection operation | work of the edge parts of the two trim scraps 19 can be easily performed by performing an operation | work in the state in which the operator mounted on the mounting board 45. FIG.

  In the present embodiment, the trim waste pressing device 26 has a rail portion 46 for smoothly moving the pressing portion 41 and the mounting plate 45. The rail portion 46 is provided in the opening 39 of the trim scrap pit 28. Two rail portions 46 are provided on both sides of the trim scrap pit 28 in the width direction. Each rail portion 46 extends in parallel to the center axis L1 in the width direction of the steel plate 21. The mounting board 45 fits into the rail part 46 on both sides in the width direction of the steel plate 21 and is guided by the rail part 46, whereby the pressing part 41 and the mounting board 45 can be accurately moved in the transport direction X. it can. Further, the receiving portion 40 and the pressing portion 41 are provided with deformable members having elasticity and flexibility on the surfaces facing each other. In the present embodiment, a felt cloth 47 used for the carpet is attached as the deformable member.

  FIG. 5 is a perspective view showing the detection means 43. The detection means 43 of the present embodiment is realized by an optical sensor having a light projecting unit 48 and a light receiving unit 49. The light projecting unit 48 and the light receiving unit 49 are provided in the trim waste guide means 36. The light projecting unit 48 projects light, and the light receiving unit 49 changes the output result according to the change in the received light amount.

  In the present embodiment, the trim scrap guide means 36 is formed in a cylindrical shape, and the trim scrap 19 moves through the internal space. The light projecting part 48 and the light receiving part 49 are arranged on the inner wall part of the trim waste guiding means 36. The light projecting unit 48 and the light receiving unit 49 are arranged to face each other, and the trim scraps 19 pass between the light projecting unit 48 and the light receiving unit 49.

  When the trim scraps 19 pass between the light projecting unit 48 and the light receiving unit 49, the light projected by the light projecting unit 48 is blocked by the trim scraps 19. At this time, the light receiving unit 49 has a small amount of received light. When the trim scraps 19 do not pass between the light projecting unit 48 and the light receiving unit 49, the light projected by the light projecting unit 48 reaches the light receiving unit 49. At this time, the light receiving unit 49 has a large amount of received light. Therefore, by checking the amount of light received by the light receiving portion 49, it is possible to determine the passage state of the trim waste 19 with respect to the trim waste guide means 36.

  For example, when the amount of light received by the light receiving unit 49 exceeds a predetermined threshold value, the rear end portion 18 of the trim scrap 19 passes between the light projecting unit 48 and the light receiving unit 49. Indicates that Further, when the amount of light received by the light receiving unit 49 is lower than the predetermined threshold value, the tip 17 of the trim scrap 19 passes between the light projecting unit 48 and the light receiving unit 49. It shows that. Accordingly, the control device 27 can determine the passage state of the trim scraps 19 based on the change in the amount of light received by the light receiving unit 49. Since the trim scrap guide means 36 is disposed downstream of the rotary round blades 34 and 35 in the transport direction, the control device 27 allows the rear end portion 18 of the trim scrap 19 to pass through the light projecting unit 48 and the light receiving unit 49. When it is determined that the trim scrap 19 has been separated from the steel plate 21, it can be determined.

  FIG. 6 is a cross-sectional view for explaining a gripping operation of the trim scrap 19 by the trim scrap pressing device 26. FIG. 6A shows a state before the trim scrap 19 is gripped, and FIG. 6B shows a state after the trim scrap 19 is gripped.

  When attention is paid to a part of the trim scrap 19 in the longitudinal direction, the portion of interest is cut as the trim scrap 19 from the steel plate 21 by the trimming device 23. Next, the target portion moves from the trimming device 23 toward the trim waste pit 28 by moving the steel plate 21. The portion of interest passes between the receiving portion 40 and the pressing portion 41 and moves to the trim waste pit 28.

  Therefore, until the rear end portion 18 of the trim scrap 19 moves to the trim scrap pit 28 after the front end portion 17 of the trim scrap 19 moves to the trim scrap pit 28, as shown in FIG. Trim scraps 19 partially project upward from the opening 39 of the pit 28.

  In this state, as shown in FIG. 6 (2), when the pressing portion 41 moves in the direction toward the receiving portion 40, the trim waste 19 is partially lifted upward from the opening 39 of the trim waste pit 28. In the projecting state, it is sandwiched between the receiving part 40 and the pressing part 41 and is prevented from falling.

  Even if the dropping position of the trim scrap 19 varies in the width direction Y, the trim scrap 19 can be reliably gripped by the receiving portion 40 and the pressing portion 41 extending in the width direction Y. Even if the pressing position 41 moves away from the receiving portion 40 in the conveying direction X and approaches the receiving portion 40, the trim debris 19 is moved even when the trim scrap 19 falls in the conveying direction X. Can be securely gripped. Moreover, in this Embodiment, the receiving part 40 and the holding | suppressing part 41 hold | grip the trim waste 19 via the felt cloth 47, and the trim waste 19 can be prevented from slipping and the trim waste 19 can be securely gripped. it can. Further, by arranging the receiving portion 40 on the trimming device side 23, it is possible to reduce the displacement of the trim debris 19 before and after gripping, and to securely grip the trim debris 19.

  FIG. 7 is a flowchart showing a control procedure of the control device 27. The control device 27 comprehensively controls the transport device 22, the trimming device 23, the winding device 25, and the trim waste pressing device 26. First, in step s0, when a trimming command is given from the operator by the input means 44 in a state where each device can be controlled, the process proceeds to step s1 to start the control operation.

  In step s 1, the control device 27 gives an operation command to the transport device 22 and passes the steel plate 21 between the rotating round blades 34 and 35 of the trimming device 23. Further, an operation command is given to the trimming device 23, and the rotary round blades 34 and 35 are rotated in accordance with the conveyance of the steel plate 21. In addition, an operation command is given to the winding device 25, and the trim scrap 19 cut by the trimming device 23 is wound around the scrap borer 24. When the trimming operation is started in this way, the process proceeds to step s2.

  In step s 2, the control device 27 determines that the rear end portion 18 of the trim scrap 19 has passed through the trim scrap guide means 36 based on the detection result given from the detection section 43, in other words, the trim scrap 19 is separated from the steel plate 21. If it is determined that the process has been performed, the process proceeds to step s3.

  In step s3, the control device 27 gives an operation command to the trim waste pressing device 26 when a predetermined time has elapsed after detecting the rear end portion 18 of the trim waste 19 in step s1. The trim scrap pressing device 26 to which the operation command is given operates the air cylinder 42 to grip the rear end 18 in the longitudinal direction of the trim scrap 19 by the receiving portion 40 and the pressing portion 41, and proceeds to step s4. . Here, the predetermined first time is set such that the trim scrap portion protruding from the trim scrap pit 28 has a predetermined length in a state where the trim scrap 19 is gripped by the trim scrap holding device 26. In step s4, when the control device 27 grips the trim waste 19 by the waste pressing device 26, the control device 27 gives a stop operation command to the winding device 25, stops the rotation of the scrap boiler 24, and proceeds to step s5.

  In step s5, based on the detection result given from the detection means 43, the control device 27 determines that the tip 17 of the trim scrap 19 generated from the steel plate 21 to be conveyed next has passed the trim scrap guide means 36. Then, it progresses to step s6.

  In step s6, the control device 27 gives a stop operation command to the conveying device 22 and the trimming device 23 when a predetermined second time has elapsed after detecting the leading end 17 of the trimmed scrap 19 in step s5, and step s7. Proceed to The conveyance device 22 to which the stop operation command is given stops the rotation of the rolls 32 and 33 and interrupts the conveyance of the steel plate 21. Further, the trimming device 23 given the stop operation command stops the rotation of the rotary round blades 34 and 35. Here, in the predetermined second time, the front end portion 17 of the next trim scrap 19 is close to the rear end portion 18 of the trim scrap 19 gripped by the trim scrap holding device 26, and the end portions of the two trim scraps 19. It is set to the time until moving to a length that allows connection between them.

  In step s7, the control device 27 notifies that the conveyance of the steel plate 21 has been stopped. Thus, the operator who determines that the steel plate 21 is stopped moves to the trimming facility 20 and gets on the mounting plate 45. And the front-end | tip part 17 of the next trim waste 19 and the rear-end part 18 of the trim waste 19 hold | gripped by the trim waste pressing device 26 are connected. The operator connects the ends of the two trim scraps 19 to move to a safe position, and gives the input means 44 a trimming restart instruction.

  In step s7, when the trimming restart instruction is given by the input means 44 from the operator, the control device 27 proceeds to step s8. In step s <b> 8, the control device 27 gives an operation command to the transport device 22 and passes the steel plate 21 between the rotating round blades of the trimming device 23. Further, an operation command is given to the trimming device 23, and the rotary round blades 34 and 35 are rotated in accordance with the conveyance of the steel plate 21. Further, an operation command is given to the winding device 25, and the scrap borer 24 is rotated so that the trim scrap 19 cut by the trimming device 23 is wound around the scrap borer 24. When the trimming operation is resumed in this way, the process returns to step s2, and steps s2 to s8 are repeated.

  The control device 27 gives a stop operation command to the transport device 22, the trimming device 23, and the winding device 25 when a stop command is given by the input means 44 at any time during the control operation period. . When the stop operation command is given in this way, the control device 27 ends the control operation.

  8 and 9 are cross-sectional views schematically showing the trimming equipment 20 for explaining a series of trimming operations. Time elapses in the order of FIGS. 8 (1) to 8 (3) and FIGS. 9 (1) to 9 (3).

  First, the operator uses the trimming facility 20 to separate trim scraps 19A having a predetermined length from the steel plate 21A. Then, one end portion 60 of the trim scrap 19 </ b> A is put into the trim scrap pit 28 and connected to the outer peripheral portion of the scrap borer 24. When such preparation is completed, the operator inputs a trimming command from the input means 44. Then, as shown in FIG. 8 (1), the scrap borer 24, the conveying rolls 32 and 33, and the rotating round blades 34 and 35 are rotated. As a result, the trim scraps 19A are sequentially cut from the steel plate 21A, and the cut trim scraps 19A are wound around the scrap borer 24.

  As shown in FIG. 8 (2), when trimming of one steel plate 21A is finished, the trim scrap 19A is completely separated from the steel plate 21A. The trim scrap 19A separated from the steel plate 21A moves toward the trim scrap pit 28. At this time, the control device 27 determines the rear end portion 18 of the trim waste 19A and operates the trim waste pressing device 26, so that the rear end portion 18 of the trim waste 19A is moved as shown in FIG. The trim scrap 19 is gripped in a state of protruding from the trim scrap pit 28, and the trim scrap 19 is prevented from falling completely into the trim scrap pit 28. Further, when the trim scraps 19 are gripped, the scrap boiler 24 stops and prevents the gripped trim scraps 19A from being divided. In this state, the succeeding steel plate 21B is conveyed to the trimming device 23, and the succeeding steel plate 21B is trimmed.

  As shown in FIG. 9 (1), trim scraps 19B are generated from the subsequent steel plate 21B. The trim scrap 19B moves toward the trim scrap pit 28. At this time, the control device 27 determines the front end portion 17 of the trim waste 19B and operates the transport device 22 and the trimming device 23 so that the front end portion 17 of the subsequent trim waste 19B is moved to the front trim portion 19A. Stop at a position close to the rear end 18.

  In this state, the operator moves to the trimming facility 20 and connects the leading end 17 of the trailing trim scrap 19B and the trailing end 18 of the preceding trim scrap 19A as shown in FIG. 9 (2). . The rear end portion 18 of the preceding trim waste 19A and the front end portion 17 of the subsequent trim waste 19B are located at predetermined positions. Therefore, the operator can easily find the end portions 17 and 18 of the trim scraps 19A and 19B, and can perform the connecting operation in a short time. When the connection work is finished, the worker inputs a restart command from the input means 44. As a result, as shown in FIG. 9 (3), the scrap borer 24, the conveying rolls 32 and 33, and the rotating round blades 34 and 35 are rotated, and trimming is resumed.

  Although this embodiment demonstrated the case where the trimming equipment 20 was provided in the batch line in which the welding machine is not provided, the trimming equipment 20 may be provided in the continuous line in which a welding machine is provided. In this case, the detection means 43 can detect that the trim debris 19 to be continuously cut has split at the joint portion of the two steel plates 21 connected by the welding machine. Then, the control device 27 grasps the preceding trim scrap 19A by the trim scrap retainer 26 until the preceding trim scrap 19A of the split trim scrap 19 completely falls into the trim scrap pit 28, thereby splitting. Of the trim scraps 19, the connecting operation can be easily performed. In the case where the welder is provided in this way, in the flowchart shown in FIG. 7, when the division of the trim debris 19 is detected in step s2, the following steps s3 to s8 are performed, so that even in a continuous line. Applicable.

  As described above, according to the present embodiment, as shown in FIG. 9B, the rear end of the preceding trim scrap 19 in the state in which the trim scrap retainer 26 grips the rear end portion 18 of the trim scrap 19. The portion 18 and the leading end portion 17 of the trim trim 19 that follows can be coupled, and the two trim scraps 19 can be easily coupled.

  More specifically, the rear end portion 18 of the trim scrap 19 is searched for from the trim scrap lump in the trim scrap pit 28 by gripping the rear end portion 18 of the trim scrap 19A before being accommodated in the trim scrap pit 28. It is not necessary and the rear end 18 of the preceding trim scrap 19 can be found very easily. In the prior art, as shown in FIG. 10 (3), the operator descends from the floor surface where the normal operation is performed to the trim waste pit 28, and the end portions 17, 18 of the trim waste 19 within the trim waste pit 28. It was necessary to perform the connection work. On the other hand, in this embodiment, the trim scrap holding device 26 grips the rear end portion 18 of the trim scrap 19 near the trimming device 23 before the rear end portion 18 of the trim scrap 19 reaches the trim scrap pit 28. To do. Therefore, the operator can perform the connecting operation of the end portions 17 and 18 of the trim scrap 19 on the floor surface where the normal operation is performed, that is, the so-called floor level, and it is not necessary for the worker to get down to the trim scrap pit 28.

  In this way, the preparation necessary for continuously winding the trim scraps 19 cut from the steel plate 21 around the scrap boiler 24 by facilitating the connecting operation between the end portions 17 and 18 of the two trim scraps 19. Time can be shortened. Thereby, the trimming workability in the steel plate 21 can be improved, the number of steel plates 21 that can be trimmed per unit time can be increased, and the productivity can be improved.

  Further, the control device 27 determines the timing of gripping the trim scrap 19 by the trim scrap pressing device 26 based on the detection result of the detection means 43. Accordingly, the operator does not always have to monitor the state of the trim scrap 19 in order to determine the grip timing of the trim scrap 19 by the trim scrap retainer 26. Can be performed in parallel. This can improve convenience.

  In the present embodiment, the detection means 43 detects the state of the trim waste 19 guided by the trim waste guide means 36. Since the trim debris 19 always passes through the trim debris guide means 36, the detection means 43 can accurately detect the front end portion 17 and the rear end portion 18 of the trim debris 19. Furthermore, since the non-contact sensor is used as the detection means 43, the passage state of the trim scraps 19 can be stably detected as compared with the case where the contact sensor is used.

  Further, the control device 27 determines that the trim scrap 19 has been separated from the steel plate 21, holds the trim scrap 19 by the trim scrap pressing device 26, and stops the winding device 25. Thereby, it is possible to prevent a tensile force from being generated in the trim scraps 19 and to prevent the trim scraps 19 from breaking.

  When the predetermined first time is reached after judging the rear end portion 18 of the preceding trim scrap 19A, the trim scrap pressing device 26 is operated. As a result, the amount of protrusion from which the trim scrap 19 protrudes from the trim scrap pit 28 in a state where the trim scrap 19 is gripped by the trim scrap retainer 26 can be set to a predetermined amount without excessive or insufficient. If there is an excess or deficiency in the protrusion amount of the trim scrap 19, it becomes difficult to connect the two trim scraps. However, as described above, in the present embodiment, the protrusion amount of the trim scrap 19 can be made appropriate. It is possible to easily connect the two trim scraps 19.

  Further, the rear end portion of the trim scrap 19A gripped by the trim scrap holding device 26 is operated by operating the conveying device 22 until the predetermined second time is reached after the front end portion 17 of the subsequent trim scrap 19B is determined. 18, when the leading end 17 of the trailing trim scrap 19 </ b> B approaches and reaches a predetermined second time, the trailing trim scrap 19 </ b> B stops by stopping the conveying device 22. Accordingly, the rear end portion 18 of the preceding trim waste 19A and the front end portion 17 of the subsequent trim waste 19B can be arranged in close proximity, and the end portions 17 and 18 of the two trim waste 19 by the operator are arranged. Connection work between each other can be easily performed.

  Further, until the worker gives a restart operation command in step s7, the trimming facility 20 keeps the operation stopped. Therefore, it is possible to prevent the trimming operation from being continued without connecting the trim scraps 19 until the trim scraps 19 are connected and a restart operation command is given, and convenience can be improved. Further, the input means 44 is arranged at a safe position away from the trimming device 23, so that a trimming restart command can be given to the trimming equipment 20 in a state where the operator has moved to the safe position.

  Further, by notifying that the trimming facility 20 has stopped operating, the control device 27 can recognize that the trim scrap 19 has been pressed by the trim scrap pressing device 26 from the notification contents, and the trimming facility. However, it is possible to prevent a trouble that the operator has not noticed though 20 has stopped.

  When the two trim scraps 19 are connected and a restart operation command is given by an operator or the like, the control device 27 releases the gripping of the trim scraps 19 by the trim scrap pressing device 26, and the conveying device 22 and the winding device. The operation of 25 is resumed. Therefore, the operator does not need to operate the conveying device 22 and the winding device 25 after connecting the trim scraps 19, and can immediately resume the trimming operation and the winding operation of the trim scraps 19.

  1 and the like, the axis of rotation of the scrap borer 24 is shown to extend in the width direction Y of the steel plate 21 to be conveyed, but this is not restrictive. For example, the scrap borer 24 has a rotation axis extending in parallel with the transport direction, and is disposed at a position away from the steel plate 21 to be transported in the steel plate width direction Y. In the trim scrap pit 28, the trim scrap movement passage may extend in the steel plate width direction Y.

  The embodiment as described above is merely an example of the present invention, and the configuration can be changed within the scope of the invention. For example, in the present embodiment, the control device 27 controls the trim waste pressing device 26, but the operator may control the trim waste pressing device 26. In this case, when the operator visually monitors the state of the trim debris 19 and determines that the rear end portion 18 of the trim debris 19 is separated from the steel plate 21, the trim debris retainer 26 is manually operated to trim trim debris. 19 is gripped by the trim dust holding device 26. Even in such a case, the operator does not have to go down to the trim scrap pit 28, and can easily find the ends 17 and 18 of the two trim scraps 19 to facilitate the connecting work. It can be carried out.

  Further, the trim scrap holding device 26 may determine the grip timing of the trim scrap 19 based on the detection result of the detection means 43. That is, when the trim scrap holding device 26 determines that the trim scrap 19 has been separated from the steel plate 21, the trim scrap holding device 26 grips the rear end portion 18 of the trim scrap 19A. In this case, the trim dust holding device 26 determines the grip timing in the same manner as the control device 27 described above determines the grip timing. This eliminates the need for the operator to always look at the state of the trim scraps 19 and improves convenience. Further, since it is not necessary to connect the control device 27 and the trim waste pressing device 26, the trim waste pressing device 26 of the present invention can be easily introduced into the current trimming equipment.

  Further, in the present embodiment, the detection means 43 is realized by an optical sensor, but it may be detected that the trim scrap 19 has been separated from the steel plate 21 using other sensors. Further, it may be detected that the trim scraps 19 are separated from the steel plate 21 based on a line speed deceleration command by the tail end portion of the coiled steel plate 21. In the present embodiment, the trimming device 23 has the rotating round blades 34 and 35 driven by the rotating means. However, the rotating round blades 34 and 35 are driven to rotate by the movement of the steel plate 21. Also good. That is, there is a case where no drive means is provided. In addition, the conveying device 22 and the trimming device 23 can use existing devices.

  In the present embodiment, the trim scrap pressing device 26 grips and holds the trim scrap 19 from both sides in the transport direction. However, the trim scrap 19 may be gripped by another configuration. For example, the trim scrap 19 may be gripped by adsorbing the trim scrap 19 or hooking the trim scrap 19. Further, in the present embodiment, the winding device is used as a device for continuously processing the trim scraps accommodated in the trim scrap pits 28, but a continuous processing may be performed in addition to this. For example, the present invention can be similarly applied even when trim waste is continuously cut in a state where the trim waste 19 discharged from the trimming device 23 is sandwiched between a pair of rolls. Moreover, in this Embodiment, although the strip | belt-shaped object to trim was demonstrated as the steel plate 19, even if it is other than the steel plate 19, the same effect can be acquired.

It is a block diagram which shows the trimming equipment 20 which is one Embodiment of this invention. 3 is a cross-sectional view showing a part of the trimming apparatus 20. FIG. It is a top view which shows the trim waste pressing device 26. FIG. It is sectional drawing which shows the trim waste pressing device 26. FIG. It is a perspective view which shows the detection means 43. FIG. It is sectional drawing for demonstrating the holding | grip operation | movement of the trim waste 19 by the trim waste pressing device 26. FIG. 3 is a flowchart showing a control procedure of a control device 27. It is sectional drawing which shows typically the trimming equipment 20 in order to demonstrate a series of operations of trimming. It is sectional drawing which shows typically the trimming equipment 20 in order to demonstrate a series of operations of trimming. It is sectional drawing which shows the trimming apparatus 1 in a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 19 Trim waste 20 Trimming equipment 21 Steel plate 22 Conveying device 23 Trimming device 25 Winding device 26 Trim waste pressing device 27 Control device 43 Detection means X Conveying direction Y Width direction Z Height direction

Claims (7)

  A trimming device is used for trimming equipment that continuously cuts the widthwise end of a strip-shaped object as trim debris, and continuously winds the trimmed debris around a scrap borer to grip the rear end of the trim debris in the longitudinal direction. A trim debris retainer characterized by:   2. The trim scrap pressing device according to claim 1, wherein when it is determined that the trim scrap is separated from the strip-shaped object, the rear end of the trim scrap in the longitudinal direction is gripped.   The trim scrap holding device according to claim 1 or 2, wherein the rear end portion in the longitudinal direction of the trim scrap is held before the rear end portion in the longitudinal direction of the trim scrap reaches the region in which the trim scrap is accommodated. A transport device for transporting the band-shaped object;
A trimming device that cuts the end in the width direction of the strip-shaped object conveyed by the conveying device as trim debris; and
A winding device for continuously winding trim scraps on a scrap boller;
Trimming equipment comprising a trim scrap holding device for gripping a rear end portion in the longitudinal direction of trim scraps separated from a strip-like object.   5. The trim trimming device according to claim 4, wherein the trim scrap pressing device grips the rear end portion in the longitudinal direction of the trim scrap before the rear end portion in the longitudinal direction of the trim scrap reaches the region in which the trim scrap is accommodated. Facility. Detecting means for detecting that the trim debris has separated from the strip-shaped object;
And a control device for controlling the trim dust holding device,
When the control device determines that the trim debris has been separated from the band-shaped object based on the detection result of the detection means, the trim debris holding device grips the rear end portion in the longitudinal direction of the trim debris separated from the band-shaped object. The trimming equipment according to claim 4 or 5, characterized in that The control device controls the transport device and the winding device, and is given an operation command,
Based on the detection result of the detection means, after judging that the trim scraps have been separated from the band-like object and stopping the winding device, when reaching a predetermined time, the operation of the conveying device is stopped,
7. The trimming facility according to claim 6, wherein when a restart operation command is given, the trim scrap holding device releases gripping trim scraps and restarts the operations of the conveying device and the winding device.

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