Cutting machine with synchronous cross beam

Abstract

The cutting machine comprises an operation table, a conveying belt is arranged on the operation table, a conveying device for driving the conveying belt to rotate is arranged in the operation table, and the cutting machine is characterized in that the cross beam is erected on the operation table and comprises a frame body; the frame body is in sliding fit with the operation table in the advancing direction of the conveying belt, a transmission shaft is rotationally arranged on the frame body, a driving device for driving the transmission shaft to rotate is arranged on the frame body, transmission devices for driving the frame body to slide are arranged at the two ends of the transmission shaft respectively, and a cutting device is arranged on the side, in the advancing direction of the conveying belt, of the cross beam. The cutting device is in sliding fit with the frame body in the width direction of the conveying belt, and an anti-collision device is arranged on the side, in the width direction of the conveying belt, of the frame body. The cutting device has the effect of improving the precision and quality of cut finished products.

Description

Technical Field

[0001] The present application relates to the technical field of cutting machines, and particularly to a cutting machine with a synchronous cross beam. Background Art

[0002] Automatic cutting machines are widely used for cutting sheets. Compared with manual cutting, automatic cutting machines combine numerical control technology, sensor technology, and automation control technology. By inputting cutting parameters or importing cutting drawings, complex cutting tasks can be automatically completed.

[0003] In related technologies, a cutting machine includes an operating table, and a conveyor belt for driving a sheet to advance is arranged on the operating table. A cross beam is also erected on the operating table. The length direction of the cross beam is parallel to the width direction of the conveyor belt. The cross beam slides along the advancing direction of the conveyor belt, and a cutting device is also slidably arranged on the cross beam. The cutting device is generally a cutting knife or a laser cutting knife. During processing operations, the conveyor belt drives the sheet to be cut to move onto the operating table. The control system arranged in the cutting machine controls the cross beam and the cutting device to move along the advancing direction and the width direction of the conveyor belt respectively, and at the same time, the cutting device cuts the sheet.

[0004] In view of the above related technologies, the cross beam of a large cutting machine is relatively long. During the process of driving the cross beam to move along the advancing direction of the conveyor belt, a deflection moment is likely to be generated, resulting in the vibration of the cross beam, affecting the positioning accuracy, and thus affecting the accuracy and quality of the finished product after cutting. Content of the Utility Model

[0005] In order to improve the accuracy and quality of the finished product after cutting, the present application provides a cutting machine with a synchronous cross beam.

[0006] A cutting machine with a synchronous cross beam provided by the present application adopts the following technical solutions:

[0007] A cutting machine with a synchronous cross beam includes an operating table, a conveyor belt is arranged on the operating table, a conveying device for driving the conveyor belt to rotate is arranged inside the operating table, a cross beam is erected on the operating table. The cross beam includes a frame body, the frame body is slidably matched with the operating table along the advancing direction of the conveyor belt, a transmission shaft is rotatably arranged on the frame body, a driving device for driving the transmission shaft to rotate is arranged on the frame body, a transmission device for driving the frame body to slide is respectively arranged at both ends of the transmission shaft, a cutting device is arranged on one side of the cross beam along the advancing direction of the conveyor belt, the cutting device is slidably matched with the frame body along the width direction of the conveyor belt, and an anti-collision device is arranged on one side of the frame body along the width direction of the conveyor belt.

[0008] By adopting the above technical solution, the driving device drives the transmission shaft to rotate, and the transmission shaft drives the frame to slide along the forward direction of the conveyor belt through the transmission devices at both ends, thereby driving the beam to move along the forward direction of the transmission belt. This method helps to ensure that the two ends of the beam move synchronously, and helps to reduce the deflection torque caused by the inconsistent moving speeds at both ends of the beam when the span of the beam is large, causing the beam to vibrate. The cutting device moves along the length direction of the beam, and the anti-collision device helps to reduce the collision of the beam with other devices or other debris on the operating table during movement, resulting in inconsistent moving speeds at both ends of the beam, which helps to further improve the movement accuracy of the beam, thereby improving the accuracy and quality of the finished product after cutting.

[0009] Preferably, the anti-collision device includes a support plate, which is fixedly connected to one end of the frame in the length direction, and a support frame is arranged on the support plate. The support frame and the support plate slide together along the forward direction of the conveyor belt, and anti-collision heads are respectively fixed at both ends of the support frame along the forward direction of the conveyor belt, and the two anti-collision heads protrude from the cutting device and the crossbeam respectively, and an elastic connecting part is also arranged between the support frame and the support plate.

[0010] By adopting the above technical solution, the anti-collision heads at both ends protrude from the cutting device and the crossbeam. When a collision occurs, the anti-collision heads will first collide with other devices or debris, and push the support frame to slide on the support plate to prevent other devices or debris from affecting the moving crossbeam, thus providing certain protection for the crossbeam and the cutting device on the crossbeam. The elastic connector offsets part of the thrust, thus improving the buffering capacity of the anti-collision device.

[0011] Preferably, a through-beam photoelectric sensor is also provided on the support frame, and the through-beam photoelectric sensor is arranged on the side of the cutting device away from the transmission shaft. The transmitter and receiver of the through-beam photoelectric sensor are respectively arranged at both ends of the transmission shaft, and the transmitter and receiver of the through-beam photoelectric sensor are symmetrically arranged along the width direction of the conveyor belt.

[0012] By adopting the above technical solution, the light beam emitted by the transmitter of the through-beam photoelectric sensor will be directly transmitted to the receiver. When other objects are inserted between the transmitter and the receiver, the light will be blocked and an electrical signal will be sent out in time. The staff can receive the signal through the control system and stop the drive device in time to prevent the movement of the beam. At the same time, when the moving speeds on both sides of the beam are inconsistent, the positions of the transmitter and the receiver will also be relatively offset, causing the receiver to be unable to receive the light beam emitted by the transmitter. In this way, it is convenient for the staff to monitor the movement status of the beam, which helps to ensure the movement accuracy of the beam.

[0013] Preferably, a clamping device is further provided on the frame body. The clamping device includes a clamping plate which is located between the conveyor belt and the operating table. A clamping cylinder is provided on the frame body. The cylinder body of the clamping cylinder is fixedly connected to the frame body. The telescopic direction of the piston rod of the clamping cylinder is vertically arranged. The end of the piston rod of the clamping cylinder is located above the clamping plate. The conveyor belt is located between the end of the piston rod of the clamping cylinder and the support plate.

[0014] By adopting the above technical solution, the piston rod of the clamping cylinder extends, so that the end of the piston rod of the clamping cylinder abuts against the upper side surface of the conveyor belt, and the conveyor belt relatively slides between the clamping plate and the end of the piston rod of the clamping cylinder. During the movement of the cross beam, the clamping device helps to tighten the conveyor belt under the cutting device, so that the conveyor belt maintains a certain tension, avoiding slipping or slackening. In this way, it helps to further improve the precision and quality of the finished product after cutting.

[0015] Preferably, a pressing device is further provided on the cross beam. The pressing device includes a pressing cylinder. The telescopic direction of the pressing cylinder is vertically arranged. The cylinder body of the pressing cylinder is relatively fixed to the frame body. A pressing block is fixed to the end of the piston rod of the pressing cylinder. A plurality of the pressing devices are arranged at intervals along the width direction of the conveyor belt.

[0016] By adopting the above technical solution, the staff places the sheet on the conveyor belt. The conveyor belt drives the sheet to move relative to the cross beam. The piston rod of the compression cylinder extends, thereby pushing the pressing block to abut against the upper side surface of the sheet. When the cross beam moves along the forward direction of the conveyor belt, the sheet passes through the gap between the conveyor belt and the pressing block and relatively slides with the pressing block. The pressing block helps to reduce the occurrence of the flexible sheet slipping or stacking together on the conveyor belt. At the same time, the movement of the cross beam drives the pressing block to move, smoothing the flexible sheet, which helps to ensure the flatness of the sheet on the conveyor belt and also helps to position the sheet, thereby improving the cutting precision.

[0017] Preferably, any one of the transmission devices includes a first synchronous pulley coaxially fixed to the transmission shaft. A second synchronous pulley is also rotatably provided on the frame body. A second synchronous belt is wound around the first synchronous pulley and the second synchronous pulley. A helical gear is coaxially fixed to the second synchronous pulley. A rack is provided on the operating table. The length direction of the rack is parallel to the forward direction of the conveyor belt. The helical gear meshes with the rack.

[0018] By adopting the above technical solution, the first synchronous pulleys at both ends of the transmission shaft drive the second synchronous pulleys to rotate respectively through two second synchronous belts, thereby driving the two helical gears to rotate around their own axes. The two helical gears are respectively engaged with the corresponding two racks. The helical gears help to improve the stability of the transmission, thereby further ensuring the synchronous movement of both ends of the crossbeam. The staff can adjust the transmission ratio between the transmission shaft and the helical gears by changing the number of teeth of the first synchronous pulley and the second synchronous pulley.

[0019] Preferably, the driving device includes a driving motor. The housing of the driving motor is relatively fixed to the frame body. A second belt pulley is coaxially fixed on the output shaft of the driving motor. A first belt pulley is also coaxially fixed on the transmission shaft. A first synchronous belt is wound around the second belt pulley and the first belt pulley.

[0020] By adopting the above technical solution, the output shaft of the driving motor drives the second belt pulley to rotate, and drives the first belt pulley to rotate through the first synchronous belt, thereby driving the transmission shaft to rotate and ensuring the stability of the movement of the crossbeam. The staff can change the transmission ratio between the transmission shaft and the driving motor by replacing the second belt pulley and the first belt pulley and changing the number of teeth of the second belt pulley and / or the first belt pulley.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. Through the driving motor, the second belt pulley, the first belt pulley and the first synchronous belt of the driving device, and the first synchronous pulley, the second synchronous pulley and the second synchronous belt of the two transmission devices, it helps to ensure the synchronous movement of both ends of the crossbeam, thereby helping to reduce the inconsistent movement speeds at both ends caused by the large span of the crossbeam, reducing the deflection moment generated by the crossbeam, and preventing vibration, which helps to improve the precision and quality of the cut finished products;

[0023] 2. The anti-collision device and the transmissive photoelectric sensor help to prevent the possibility of the crossbeam colliding with other devices or sundries during the movement, thereby ensuring the movement precision of the crossbeam;

[0024] 3. Through the clamping device and the pressing device, it helps to ensure the flatness and stability of the conveyor belt and the sheet material during the movement of the crossbeam, thereby helping to improve the cutting precision and ensuring the precision and quality of the cut finished products. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is an axonometric schematic diagram mainly showing the overall structure of the cutting machine with a synchronous crossbeam in the embodiment of the present application;

[0026] Figure 2 is an axonometric schematic diagram mainly showing the internal structure of the crossbeam in the embodiment of the present application;

[0027] Figure 3It is an axonometric schematic diagram mainly showing the structures at both ends of the transmission shaft in the embodiment of the present application;

[0028] Figure 4 It is an axonometric schematic diagram mainly showing the internal structure of the anti-collision device in the embodiment of the present application.

[0029] Reference numerals: 1, cross beam; 11, frame; 111, mounting plate; 12, retaining piece; 13, outer shell; 14, slider; 15, slide rail; 2, transmission shaft; 21, first synchronous pulley; 22, first belt pulley; 3, driving device; 31, driving motor; 32, second belt pulley; 33, first synchronous belt; 4, transmission device; 41, second synchronous pulley; 42, second synchronous belt; 43, helical gear; 44, rack; 45, adjusting plate; 46, pressing wheel; 5, clamping device; 51, clamping plate; 52, clamping cylinder; 6, pressing device; 61, pressing cylinder; 7, anti-collision device; 71, support plate; 711, guide rail; 72, support frame; 73, baffle; 731, avoidance groove; 74, anti-collision head; 75, protective shell; 76, connecting frame; 77, tension spring; 78, opposed photoelectric sensor; 8, operating table; 81, groove-type photoelectric sensor; 82, conveyor belt. Detailed implementation manners

[0030] The following further Figures 1-4 describes the present application in detail with reference to the

[0031] The embodiment of the present application discloses a cutting machine with a synchronous cross beam.

[0032] Referring to Figure 1 , the cutting machine with a synchronous cross beam includes an operating table 8. A conveyor belt 82 is arranged on the operating table 8, and a conveying device for driving the conveyor belt 82 to advance is arranged inside the operating table 8. The conveying device is generally a motor and two rollers. The conveyor belt 82 is wound around the two rollers, and the motor drives any one of the rollers to rotate, thereby driving the conveyor belt 82 to advance along the length direction of the operating table 8 to any one end. A cross beam 1 is erected on the operating table 8, and the length direction of the cross beam 1 is parallel to the width direction of the conveyor belt 82. The cross beam 1 is in sliding fit with the operating table 8 along the length direction of the operating table 8, and a driving device 3 for driving the cross beam 1 to move is arranged inside the cross beam 1. A cutting device is also arranged on the cross beam 1, and the cutting device is in sliding fit with the cross beam 1 along the length direction of the cross beam 1. The cutting device generally includes a driving member for driving the cutting device to slide and a cutting knife. Before the cutting operation, the staff places one end of the sheet to be processed on the conveyor belt 82, and the conveyor belt 82 advances, thereby driving the sheet to be laid flat on the conveyor belt 82. The driving device 3 drives the cross beam 1 to slide along the advancing direction of the conveyor belt 82, and the cutting device simultaneously slides along the length direction of the cross beam 1, thereby realizing the cutting of the sheet.

[0033] Referring to Figure 2 , Figure 3The crossbeam 1 includes a frame 11, on which a transmission shaft 2 is arranged. The transmission shaft 2 is located on the side of the crossbeam 1 away from the cutting device along the advancing direction of the conveyor belt 82, and the axial direction of the transmission shaft 2 is parallel to the length direction of the crossbeam 1. Both ends of the transmission shaft 2 are rotatably connected to the frame 11 through bearings. The driving device 3 includes a driving motor 31, and the housing of the driving motor 31 is detachably fixed to the frame 11. The axial direction of the output shaft of the driving motor 31 is parallel to the axial direction of the transmission shaft 2. A second pulley 32 is coaxially fixed on the output shaft of the driving motor 31, and a first pulley 22 is sleeved on the transmission shaft 2, and the first pulley 22 is coaxially fixed with the transmission shaft 2. A first synchronous belt 33 is wound around the first pulley 22 and the second pulley 32. After the driving motor 31 is started, the output shaft drives the second pulley 32 to rotate, and the second pulley 32 drives the first pulley 22 to rotate through the first synchronous belt 33, thereby driving the transmission shaft 2 to rotate. The staff can replace the first pulley 22 , the second pulley 32 and the first synchronous belt 33 matched with the first pulley 22 and the second pulley 32 as needed, so as to change the transmission ratio between the drive motor 31 and the transmission shaft 2 .

[0034] A transmission device 4 is also provided at both ends of the transmission shaft 2, and any transmission device 4 includes a first synchronous wheel 21 sleeved on one end of the transmission shaft 2, and the first synchronous wheel 21 is coaxially fixed with the transmission shaft 2. A second synchronous wheel 41 is also provided on the lower side of the frame 11, and the axial direction of the second synchronous wheel 41 is parallel to the axial direction of the transmission shaft 2. The second synchronous wheel 41 is rotatably connected to the frame 11 through a bearing, and a second synchronous belt 42 is wound around the first synchronous belt 33 and the second synchronous belt 42. A bevel gear 43 is coaxially fixed on the second synchronous wheel 41. An aluminum profile is fixed in the operating table 8, and a rack 44 meshing with the bevel gear 43 is fixed on the aluminum profile, and the length direction of the rack 44 is parallel to the forward direction of the conveyor belt 82. Two racks 44 are provided corresponding to the transmission device 4, and the two racks 44 are located on the inner side of the two bevel gears 43, and the inclination directions of the two bevel gears 43 are opposite.

[0035] See also Figure 3 , Figure 4 , the frame 11 is also provided with an adjustment plate 45, which is rotatably connected to the frame 11 by bolts, and the rotation axis of the adjustment plate 45 and the frame 11 is parallel to the axis direction of the transmission shaft 2. The adjustment plate 45 is also provided with a pressure wheel 46, and the axis direction of the pressure wheel 46 is parallel to the axis direction of the first synchronous wheel 21. The pressure wheel 46 is rotatably connected to the adjustment plate 45 along its own axis direction. The outer side surface of the pressure wheel 46 in the radial direction is pressed against the second synchronous belt 42. The staff can adjust the relative position of the pressure wheel 46 on the frame 11 according to the actual situation, and then adjust the tension of the second synchronous belt 42, so as to reduce the slippage of the second synchronous belt 42 on the first synchronous wheel 21 and the second synchronous wheel 41. In this way, it is helpful to further reduce the occurrence of inconsistent moving distances at both ends of the beam 1.

[0036] See Figure 2 and Figure 3 On the frame body 11, there is also a fixed mounting plate 111. The mounting plate 111 is horizontally arranged. A slider 14 is fixed on the lower side of the mounting plate 111. A slide rail 15 is fixed on the upper side of the aluminum profile. The length direction of the slide rail 15 is parallel to the advancing direction of the conveyor belt. The slide rail 15 is embedded in the slider 14, and the slider 14 and the slide rail 15 slide along the advancing direction of the conveyor belt 82. During the cutting operation, the drive shaft 2 drives the first synchronous wheels 21 at both ends to rotate. Any one of the first synchronous wheels 21 drives the second synchronous wheel 41 to rotate through the corresponding second synchronous belt 42, thereby driving the corresponding helical gear 43 to rotate along its own axis direction. The helical gear 43 meshes with the corresponding rack 44, thereby driving the entire frame body 11 to slide on the operating table 8. By the method of driving the helical gears 43 on both sides to rotate through one drive shaft 2, it helps to ensure the synchronous movement of both ends of the cross beam 1, and helps to reduce the situation that when the span of the cross beam 1 is relatively large, the deflection moment is generated due to the inconsistent moving speeds of both ends of the cross beam 1, causing the cross beam 1 to vibrate.

[0037] See Figure 3 and Figure 4 At both ends of the cross beam 1, there is a collision prevention device 7 respectively. Any one of the collision prevention devices 7 includes a support plate 71. The support plate 71 is fixed on the frame body 11. The support plate 71 is vertically arranged. The thickness direction of the support plate 71 is parallel to the length direction of the cross beam 1. On the side of the support plate 71 facing away from the frame body 11, there is a support frame 72. A guide rail 711 is fixed on the support plate 71. The length direction of the guide rail 711 is parallel to the advancing direction of the conveyor belt 82. A sliding block is fixed on the support plate 71. The guide rail 711 is embedded in the sliding block, and the sliding block and the guide rail 711 are slidably matched along their length directions. A connecting frame 76 is also respectively arranged on the support frame 72 and the support plate 71. An elastic connecting member is arranged between the two connecting frames 76. In this embodiment, the elastic connecting member is a tension spring 77. Both ends of the tension spring 77 are respectively fixed on the two connecting frames 76. The axial direction of the tension spring 77 is parallel to the sliding direction of the support frame 72. At both ends of the support frame 72 along the advancing direction of the conveyor belt 82, there is a collision prevention head 74 respectively. The two collision prevention heads 74 respectively protrude from the drive shaft 2 and the cutting device along the advancing direction of the conveyor belt 82. A protective shell 75 is also covered outside the support frame 72. The protective shell 75 is detachably fixed to the support plate 71. During the cutting operation, the cross beam 1 moves on the operating table 8. If there are other devices or sundries on the conveyor belt 82, when the cross beam 1 moves towards the side close to other devices or sundries, the collision prevention head 74 on this side will first contact other devices or sundries, and the staff can stop the driving device 3 in time, so that the cross beam 1 stops moving. The slidably arranged support frame 72 and the tension spring 77 will offset a part of the thrust, thereby improving the buffering capacity of the collision prevention device 7.

[0038] The support frame 72 is also provided with an opposed photoelectric sensor 78, which includes a transmitter and a receiver. The transmitter and the receiver are respectively fixed on the support frames 72 of the two anti-collision devices 7 at both ends of the cross beam 1. The transmitter and the receiver are symmetrically arranged along the width direction of the conveyor belt 82. Both the transmitter and the receiver are located within the two corresponding anti-collision heads 74 at both ends of the cross beam 1. A baffle 73 is also fixed on any support plate 71, and an avoidance groove 731 is provided on the baffle 73. The avoidance groove 731 sequentially penetrates through the baffle 73 and the anti-collision head 74 along the width direction of the conveyor belt 82. The light beam emitted by the transmitter passes through the avoidance groove 731 on this side and exits from the anti-collision head 74, and then passes through the avoidance groove 731 on the other side in the width direction of the conveyor belt 82, so as to be received by the receiver. When any one of the anti-collision heads 74 moves along the forward direction of the conveyor belt 82 under the action of a thrust, the light beam emitted by the transmitter will be blocked by the baffle 73, so that the receiver cannot receive the corresponding light beam. At the same time, when the moving speeds of both ends of the cross beam 1 are inconsistent, the light beam emitted by the transmitter cannot be received by the receiver either.

[0039] The cutting machine is also provided with a control system, and the driving motor 31 is electrically connected to the control system. The opposed photoelectric sensor 78 is electrically connected to the control system. When the control system receives the signal emitted by the opposed photoelectric sensor 78, it controls the driving motor 31 to brake. In this way, it helps to further ensure the synchronous movement of both ends of the cross beam 1, so as to ensure the movement accuracy of the cross beam 1 and the accuracy and quality of the finished product after cutting.

[0040] The opposed photoelectric sensor 78 is located on the side of the cross beam 1 close to the cutting device along the forward direction of the conveyor belt 82. When the cutting device is working and the hand or other sundries of the staff approach the cutting device, the receiver will first be blocked from receiving the light beam emitted by the transmitter, and the control system will receive the signal in time, so as to control the driving motor 31 to brake and stop the cross beam 1 from moving. In this way, it helps to improve the safety of the cutting machine.

[0041] See Figure 2 、 Figure 3The crossbeam 1 is also provided with a clamping device 5, which includes a mounting frame fixed on the crossbeam 1, and a clamping plate 51 is formed at the lower end of the mounting frame. The clamping plate 51 is arranged horizontally and is located between the conveyor belt 82 and the upper side of the operating table 8. A clamping cylinder 52 is also fixed on the mounting frame, and the piston rod of the clamping cylinder 52 is extended and retracted downward in the vertical direction. The end of the piston rod of the clamping cylinder 52 is located on the upper side of the conveyor belt 82. Before the crossbeam 1 moves, the staff controls the piston rod of the clamping cylinder 52 to extend and retract, so that the end of the piston rod abuts against the upper side of the conveyor belt 82, so that the interval between the end of the piston rod and the clamping plate 51 can only allow one layer of the conveyor belt 82 to pass. A clamping device 5 is arranged on each side of the conveyor belt 82 in the width direction. During the movement of the crossbeam 1, the clamping device 5 helps to tighten the conveyor belt 82 on the lower side of the cutting device, so that the conveyor belt 82 maintains a certain tension and prevents the conveyor belt 82 from slipping or loosening.

[0042] See also Figure 1 , a clamping device 6 is also provided on the crossbeam 1, a shell 13 is provided on the upper side cover of the transmission shaft 2, and the clamping device 6 is arranged on the shell 13. The clamping device 6 is located on the side of the crossbeam 1 away from the cutting device along the forward direction of the conveyor belt 82. The clamping device 6 includes a clamping cylinder 61, and the cylinder body of the clamping cylinder 61 is detachably fixed to the crossbeam 1. The piston rod of the clamping cylinder 61 is telescoped downward in the vertical direction, and a clamping block is fixed to the end of the piston rod of the clamping cylinder 61, and the clamping block is arranged horizontally. A plurality of clamping devices 6 are arranged at intervals along the length direction of the crossbeam 1. In this embodiment, three clamping devices 6 are preferably provided, and the three clamping devices 6 are evenly spaced. In actual work, the staff can adjust the number and position of the clamping device 6 as needed. The moving clamping block can smooth the sheet material on the conveyor belt 82, especially the flexible sheet material.

[0043] A slot-type photoelectric sensor 81 is also provided on the side of the operating table 8 in the width direction, and one slot-type photoelectric sensor 81 is provided at each end in the length direction of the operating table 8. A baffle 12 is also fixed on the frame 11. When the crossbeam 1 moves to the limit position on one side in the length direction of the operating table 8, the baffle 12 is inserted into any slot-type photoelectric sensor 81 along the length direction of the operating table 8. The slot-type photoelectric sensor 81 is connected to the operating system by telecommunication. In actual operation, when the crossbeam 1 moves to the limit position on either side in the length direction of the operating table 8, the operating system receives a signal from the slot-type photoelectric sensor 81 after the baffle 12 is inserted into the slot-type photoelectric sensor 81, thereby controlling the driving motor 31 to stop rotating. In this way, it helps to avoid the situation where the crossbeam 1 continues to move after moving to the limit position, which helps to improve the safety of the cutting machine.

[0044] The implementation principle of a cutting machine with a synchronous crossbeam in an embodiment of the present application is as follows: The staff places one end of the sheet to be processed on the conveyor belt 82. As the conveyor belt 82 moves forward, it drives the sheet to be laid flat on the conveyor belt 82. The staff controls the piston rod of the clamping cylinder 52 and the piston rod of the pressing cylinder 61 to extend, so that the end of the piston rod of the clamping cylinder 52 abuts against the upper side of the conveyor belt 82, and the pressing block abuts against the upper side of the sheet. Then, the staff controls the driving motor 31 to start through the control system. The driving motor 31 drives the first pulley 22 to rotate. The first pulley 22 drives the second pulley 32 to rotate through the first synchronous belt 33, thereby driving the transmission shaft 2 to rotate. The rotation of the transmission shaft 2 drives the two first synchronous pulleys 21 to rotate. The two first synchronous pulleys 21 respectively drive the two second synchronous pulleys 41 to rotate through the corresponding second synchronous belts 42, thereby driving the two helical gears 43 to rotate. The two helical gears 43 are respectively engaged with the two racks 44, so as to push both ends of the crossbeam 1 to slide cooperatively along the advancing direction of the conveyor belt 82 and the operating table 8. At the same time, the cutting device slides along the length direction of the crossbeam 1 on the crossbeam 1, and the cutting device cuts the sheet.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A cutting machine with a synchronous crossbeam, comprising an operating table (8), a conveyor belt (82) is arranged on the operating table (8), and a conveying device for driving the conveyor belt (82) to rotate is arranged in the operating table (8), characterized in that: A crossbeam (1) is mounted on the operating table (8), and the crossbeam (1) includes a frame (11). The frame (11) is slidably matched with the operating table (8) along the forward direction of the conveyor belt (82). A transmission shaft (2) is rotatably arranged on the frame (11). A driving device (3) for driving the transmission shaft (2) to rotate is arranged on the frame (11). A transmission device (4) for driving the frame (11) to slide is respectively arranged at both ends of the transmission shaft (2). A cutting device is arranged on one side of the crossbeam (1) along the forward direction of the conveyor belt (82). The cutting device is slidably matched with the frame (11) along the width direction of the conveyor belt. An anti-collision device (7) is arranged on one side of the frame (11) along the width direction of the conveyor belt (82).

2. The cutting machine with a synchronous crossbeam according to claim 1, characterized in that: The anti-collision device (7) comprises a support plate (71), the support plate (71) is fixedly connected to one end of the frame body (11) in the length direction, a support frame (72) is arranged on the support plate (71), the support frame (72) and the support plate (71) are slidably matched along the forward direction of the conveyor belt (82), anti-collision heads (74) are respectively fixed at both ends of the support frame (72) along the forward direction of the conveyor belt (82), the two anti-collision heads (74) respectively protrude from the cutting device and the crossbeam (1), and an elastic connecting piece is also arranged between the support frame (72) and the support plate (71).

3. The cutting machine with a synchronous crossbeam according to claim 2, characterized in that: The support frame (72) is also provided with a beam-type photoelectric sensor (78), which is arranged on a side of the cutting device away from the transmission shaft (2), and a transmitter and a receiver of the beam-type photoelectric sensor (78) are respectively arranged at two ends of the transmission shaft (2), and the transmitter and the receiver of the beam-type photoelectric sensor (78) are symmetrically arranged along the width direction of the conveyor belt (82).

4. The cutting machine with a synchronous crossbeam according to claim 1, characterized in that: The frame (11) is also provided with a clamping device (5), the clamping device (5) comprising a clamping plate (51), the clamping plate (51) being located between the conveyor belt (82) and the operating table (8), the frame (11) being provided with a clamping cylinder (52), the cylinder body of the clamping cylinder (52) being fixedly connected to the frame (11), the extension direction of the piston rod of the clamping cylinder (52) being vertically arranged, the end of the piston rod of the clamping cylinder (52) being located on the upper side of the clamping plate (51), and the conveyor belt (82) being located between the end of the piston rod of the clamping cylinder (52) and the support plate (71).

5. The cutting machine with a synchronous crossbeam according to claim 1, characterized in that: A clamping device (6) is also provided on the cross beam (1), and the clamping device (6) comprises a clamping cylinder (61). The clamping cylinder (61) is arranged vertically in the telescopic direction, the cylinder body of the clamping cylinder (61) is relatively fixed to the frame body (11), a clamping block is fixed to the end of the piston rod of the clamping cylinder (61), and a plurality of the clamping devices (6) are arranged at intervals along the width direction of the conveyor belt (82).

6. The cutting machine with a synchronous crossbeam according to claim 1, characterized in that: Any one of the said transmission devices (4) includes a first synchronous pulley (21) fixedly coaxial with the transmission shaft (2). A second synchronous pulley (41) is rotatably arranged on the frame body (11). A second synchronous belt (42) is wound around the first synchronous pulley (21) and the second synchronous pulley (41). A helical gear (43) is fixedly coaxial with the second synchronous pulley (41). A rack (44) is arranged on the operating platform (8). The length direction of the rack (44) is parallel to the advancing direction of the conveyor belt (82). The helical gear (43) meshes with the rack (44).

7. The cutting machine with a synchronous crossbeam according to claim 1, wherein: The said driving device (3) includes a driving motor (31). The housing of the driving motor (31) is relatively fixed to the frame body (11). A second belt pulley (32) is fixedly coaxial with the output shaft of the driving motor (31). A first belt pulley (22) is also fixedly coaxial with the transmission shaft (2). A first synchronous belt (33) is wound around the first belt pulley (22) and the second belt pulley (32).

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