Cutting machine with high-stability cross beam

Abstract

The cutting machine comprises a frame body, an operation table is arranged in the frame body, the cross beam is erected on the operation table, the cross beam slides relative to the frame body in the length direction of the operation table, a transmission shaft is rotationally arranged on the frame body, and the length direction of the transmission shaft is parallel to the width direction of the operation table. The frame body is provided with a first driving device for driving the transmission shaft to rotate in the axis direction of the transmission shaft, the transmission shaft is provided with transmission devices for driving one end of the cross beam to move in the length direction of the operation table, the transmission devices are arranged at the two ends of the transmission shaft respectively, and the cross beam is provided with a cutting device. And a second driving device for driving the cutting device to slide in the length direction of the cross beam is arranged in the cross beam. The device has the effects that the moving precision of the cross beam is improved, so that the precision and quality of cut finished products are improved.

Description

Technical Field

[0001] This application relates to the technical field of cutting machines, and in particular to a cutting machine with a cross beam of high stability. Background Art

[0002] With the development of industrial automation, various cutting machines are increasingly widely used in the manufacturing industry. Cutting machines are widely used for the precise cutting of materials such as paper, metal, fabric, and plastic.

[0003] In related technologies, a cutting machine includes an operating table, on which a cross beam is mounted. The length direction of the cross beam is parallel to the width direction of the operating table, and the cross beam slides on the operating table along the length direction of the operating table. A driving device for driving the cross beam to slide is also provided on the operating table and / or the cross beam. A cutting device is provided on the cross beam, and the cutting device is mostly set as a traditional cutting knife or a laser cutting knife.

[0004] In view of the above related technologies, for a sheet material to be processed with a relatively long width, a cross beam with a relatively large span is required. During the movement of the cross beam along the length direction of the operating table, when the moving speeds of both ends of the cross beam are inconsistent, a deflection moment will be generated, causing the cross beam to vibrate, affecting the positioning accuracy, and thus affecting the accuracy and quality of the cut finished product. Summary of the Invention

[0005] In order to improve the moving accuracy of the cross beam, and thus improve the accuracy and quality of the cut finished product, this application provides a cutting machine with a cross beam of high stability.

[0006] A cutting machine with a cross beam of high stability provided by this application adopts the following technical solutions:

[0007] A cutting machine with a cross beam of high stability includes a frame body. An operating table is arranged inside the frame body. A cross beam is mounted on the operating table. The cross beam slides along the length direction of the operating table relative to the frame body. A transmission shaft is arranged on the frame body. The length direction of the transmission shaft is parallel to the width direction of the operating table. Both ends of the transmission shaft are respectively rotatably connected to the frame body. A first driving device for driving the transmission shaft to rotate around its own axis direction is arranged on the frame body. A transmission device for driving one end of the cross beam to move along the length direction of the operating table is arranged on the transmission shaft. One transmission device is arranged at each of both ends of the transmission shaft. A cutting device is arranged on the cross beam. The cutting device is slidably matched with the cross beam along the length direction of the cross beam. A second driving device for driving the cutting device to slide is arranged inside the cross beam.

[0008] By adopting the above technical solution, the staff puts the sheet on the operating table, starts the first driving device and the second driving device, the first driving device drives the transmission shaft to rotate, the transmission shaft drives the beam to move along the length direction of the operating table through the two transmission devices set at both ends, the second driving device drives the cutting device to slide along the length direction of the beam, and the cutting device cuts the sheet on the operating table. The method of driving the two ends of the beam to move by the transmission shaft helps to ensure that the two ends of the beam move synchronously, thereby helping to improve the stability of the beam, ensure the accuracy of cutting, and then help to improve the accuracy and quality of the finished product after cutting.

[0009] Preferably, the transmission shaft is located at one end of the frame along the length direction of the operating table, and any of the transmission devices includes a driving wheel and a passive wheel, the driving wheel is coaxially fixed at one end of the transmission shaft, and the passive wheel is located at the end of the length direction of the operating table away from the driving wheel, an open synchronous belt is wound around the driving wheel and the passive wheel, side panels are respectively provided at both ends of the crossbeam, a fixed plate is provided on the side panels, the fixed plate is horizontally arranged, a clamping plate is provided on the fixed plate, two of the clamping plates are spaced apart along the length direction of the operating table, and both ends of the open synchronous belt are respectively fixed between the two clamping plates and the fixed plate.

[0010] By adopting the above technical solution, before the cutting operation, the staff adjusts the relative positions of the open synchronous belts, the beams and the operating table of the frame to ensure that the length direction of the beams is parallel to the width direction of the frame. The staff starts the first driving device, and the first driving device drives the transmission shaft to rotate. The transmission shaft drives the two driving wheels to rotate, and the two driving wheels respectively drive the two open synchronous belts to move, thereby driving the two ends of the beam to slide along the length direction of the operating table. The open synchronous belt is convenient for installing and adjusting the relative position of the beam. The transmission device set in this way helps to improve the synchronization of the two ends of the beam, helps to ensure that the moving speed of the two ends of the beam is the same, and thus helps to improve the accuracy and quality of the finished product after cutting.

[0011] Preferably, the first driving device includes a first driving motor, the housing of the first driving motor is fixed on the lower side of the operating table, the axis of the output shaft of the first driving motor is parallel to the axis of the transmission shaft, a first pulley is coaxially fixed on the output shaft of the first driving motor, a second pulley is coaxially fixed on the transmission shaft, and a first synchronous belt is wound around the first pulley and the second pulley.

[0012] By adopting the above technical solution, the staff starts the first drive motor, the first drive motor drives the first pulley to rotate, the first pulley drives the second pulley to rotate through the first synchronous belt, thereby driving the transmission shaft to rotate, and the staff can change the transmission ratio between the first drive motor and the transmission shaft by replacing the first pulley and the second pulley.

[0013] Preferably, an anti-collision device is provided at each end of the cross beam, including a support plate fixedly connected to one end of the frame body in the length direction. A support frame is provided on the support plate, and the support frame is slidably engaged with the support plate in the length direction of the operating table. Anti-collision heads are respectively fixed at both ends of the support frame in the length direction of the operating table, and the two anti-collision heads respectively protrude from the cutting device and the cross beam.

[0014] By adopting the above technical solution, the anti-collision heads at both ends protrude from the cutting device and the cross beam. When a collision occurs, the anti-collision heads will first collide with other devices or sundries. The anti-collision heads push the support frame to slide on the support plate, preventing other devices or sundries from affecting the moving cross beam, and providing a certain degree of protection for the cross beam and the cutting device on the cross beam.

[0015] Preferably, a transmissive photoelectric sensor is further provided on the support frame. The transmitter and receiver of the transmissive photoelectric sensor are respectively arranged at both ends of the cross beam, and the transmitter and receiver of the transmissive photoelectric sensor are symmetrically arranged in the width direction of the operating table.

[0016] By adopting the above technical solution, the light beam emitted by the transmitter of the transmissive photoelectric sensor will be directly conducted into 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 in time. The staff can receive this signal through the control system and stop the first driving device in time to prevent the cross beam from moving. At the same time, when the moving speeds on both sides of the cross beam are inconsistent, the positions of the transmitter and the receiver will also shift relatively, resulting in the receiver being unable to receive the light beam emitted by the transmitter. In this way, it is convenient for the staff to monitor the moving state of the cross beam and helps to ensure the moving accuracy of the cross beam.

[0017] Preferably, positioning rollers are further provided on the frame body. The positioning rollers are horizontally arranged, the axis direction of the positioning rollers is parallel to the width direction of the operating table, both ends of the positioning rollers are rotatably connected to the frame body, and one positioning roller is provided at each end of the operating table in the length direction. A cutting pad is wound around the two positioning rollers.

[0018] By adopting the above technical solution, the cutting pad helps to protect the operating table and reduce the damage to the operating table by the cutting knife during the cutting operation. At the same time, the cutting pad generally uses a material with a large friction coefficient, which helps to prevent the sheet from slipping on the cutting pad during the movement of the cross beam.

[0019] Preferably, a clamping device is further provided on the cross beam. The clamping device includes a clamping block which is located between the cutting pad and the operating table. A clamping cylinder is provided on the cross beam. The cylinder body of the clamping cylinder is relatively fixed to the cross beam. 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 block. The cutting pad above is located between the end of the piston rod of the clamping cylinder and the support plate. One clamping device is provided on each side of the cross beam.

[0020] By adopting the above technical solution, before the cutting operation, the piston rod of the clamping cylinder shortens, so that the end of the piston rod moves away from the cutting pad, ensuring that the cutting pad will not move with the clamping cylinder when the cross beam moves. After the cutting is completed, the piston rod of the clamping cylinder elongates, so that the end of the piston rod and the clamping block respectively abut against both sides in the thickness direction of the cutting pad. Then, the cross beam is driven to move by the first driving device and the transmission device, and further drives the cutting pad to move to one side along the length direction of the operating table, thereby driving the cut sheet out of the operating table. In this way, it is convenient for the staff to load and unload materials, which helps to improve work efficiency.

[0021] 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 cross beam. A pressing strip is fixed to the end of the piston rod of the pressing cylinder. The length direction of the pressing strip is parallel to the width direction of the operating table.

[0022] By adopting the above technical solution, the staff places the sheet to be cut on the operating table. The piston rod of the compression cylinder elongates, pushing the pressing block to abut against the upper side of the sheet. When the cross beam moves along the length direction of the operating table, the sheet passes through the gap between the upper side of the operating table and the pressing block, and the pressing block slides relative to the sheet and the operating table. During the cutting operation, the pressing block helps to ensure the flatness of the sheet and reduce the possibility of the sheet warping during the cutting process, which helps to ensure the cutting accuracy.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The first driving device drives the transmission shaft to rotate. The two ends of the transmission shaft respectively drive the two ends of the cross beam to move synchronously through the transmission devices on both sides, thereby ensuring the high stability and synchronism of the movement of the two ends of the cross beam during the cutting process. The cutting device moves along the length direction of the cross beam on the cross beam to cut the sheet, thereby improving the overall cutting effect and the quality and accuracy of the cut finished product;

[0025] 2. The transmissive photoelectric sensor and the anti-collision device help to ensure the smooth movement of the two ends of the cross beam, facilitate the staff to monitor the movement state of the cross beam, and at the same time improve the overall safety of the cutting machine and reduce the risk of accidental damage;

[0026] 3. The pressing device ensures the flatness of the sheet during the movement of the crossbeam and the cutting process, further improving the cutting accuracy. The clamping device facilitates the control of the movement of the cutting pad, thus realizing automatic loading and unloading. Description of the Drawings

[0027] Figure 1 is an axonometric schematic diagram mainly showing the overall structure of the cutting machine with a crossbeam of high stability in the embodiment of the present application;

[0028] Figure 2 is an axonometric schematic diagram mainly showing the structure among the frame body, the operating table and the crossbeam in the embodiment of the present application;

[0029] Figure 3 is an axonometric schematic diagram mainly showing the structure between the frame body and the crossbeam in the embodiment of the present application;

[0030] Figure 4 is Figure 3 the enlarged view at A in

[0031] Figure 5 is Figure 3 the enlarged view at B in

[0032] Figure 6 is an axonometric schematic diagram mainly showing the structures on the crossbeam in the embodiment of the present application.

[0033] Reference Numerals: 1, frame body; 11, transmission shaft; 12, positioning roller; 13, cutting pad; 14, operating table; 15, groove type photoelectric sensor; 2, first driving device; 21, first driving motor; 22, first belt pulley; 23, second belt pulley; 24, first synchronous belt; 3, transmission device; 31, driving wheel; 32, driven wheel; 33, open synchronous belt; 4, crossbeam; 41, positioning frame; 42, side plate; 43, fixing plate; 44, positioning plate; 45, clamping plate; 46, retaining piece; 47, cushion block; 5, cutting device; 51, mounting plate; 52, abutting plate; 6, second driving device; 61, second driving motor; 62, first synchronous pulley; 63, second synchronous pulley; 64, second synchronous belt; 65, third synchronous pulley; 66, fourth synchronous pulley; 67, third synchronous belt; 7, anti-collision device; 71, support plate; 72, guide rail; 73, support frame; 731, opposed photoelectric sensor; 74, baffle; 75, avoidance groove; 76, anti-collision head; 77, outer shell; 78, connecting block; 79, tension spring; 8, clamping device; 81, clamping block; 82, clamping cylinder; 9, pressing device; 91, pressing cylinder; 92, pressing strip. Detailed Description of the Invention

[0034] The following will further elaborate on this application in conjunction with the attached drawings. Figures 1-6 Specifically, the present application will be further described in detail below.

[0035] An embodiment of the present application discloses a cutting machine with a crossbeam of high stability.

[0036] Referring to Figure 1 and Figure 2 , the cutting machine with a crossbeam of high stability includes a frame 1, on which an operating table 14 is mounted. The operating table 14 is horizontally arranged. On both sides of the operating table 14 in the length direction, a positioning roller 12 is respectively arranged. The positioning roller 12 is horizontally arranged, and the axis direction of the positioning roller 12 is parallel to the width direction of the operating table 14. Both ends of any positioning roller 12 are respectively rotationally connected to the frame 1. A cutting pad 13 is wound around the two positioning rollers 12, and the operating table 14 is arranged inside the annular cutting pad 13. A crossbeam 4 is also mounted on the operating table 14. The crossbeam 4 is horizontally arranged, and the length direction of the crossbeam 4 is parallel to the width direction of the operating table 14. The crossbeam 4 slides along the length direction of the operating table 14, and a first driving device 2 for driving the crossbeam 4 to slide is also arranged on the frame 1. A cutting device 5 is also slidably arranged on the crossbeam 4. A second driving device 6 for driving the cutting device 5 to slide is arranged on the crossbeam 4. The cutting device 5 includes a cutting knife, and the cutting knife can be set as a traditional cutting knife or a laser cutting knife.

[0037] In actual work, the staff lays the sheet on the upper side of the cutting pad 13, and the operating table 14 provides support for the upper cutting pad 13. The staff starts the first driving device 2 and the second driving device 6. The first driving device 2 drives the crossbeam 4 to move, and at the same time, the second driving device 6 drives the cutting device 5 to move on the crossbeam 4, so that the cutting knife can move arbitrarily in the horizontal direction, and the sheet is cut in this way.

[0038] Referring to Figures 2-4 , a transmission shaft 11 is also arranged on the frame 1. The transmission shaft 11 is horizontally arranged, and the axis direction of the transmission shaft 11 is parallel to the length direction of the crossbeam 4. Both ends of the transmission shaft 11 are respectively rotationally connected to the frame 1, and the transmission shaft 11 is located on one side of the operating table 14 in the length direction. The first driving device 2 includes a first driving motor 21, and the housing of the first driving motor 21 is fixed on the frame 1. The output shaft of the first driving motor 21 can be controlled to rotate forward and backward. A first belt pulley 22 is coaxially fixed on the output shaft of the first driving motor 21. A second belt pulley 23 is coaxially fixed at one end of the transmission shaft 11 in the axis direction. The axis directions of the first belt pulley 22 and the second belt pulley 23 are parallel, and a first synchronous belt 24 is wound around the first belt pulley 22 and the second belt pulley 23. The staff can change the transmission ratio between the first driving motor 21 and the transmission shaft 11 by replacing the first belt pulley 22 and the second belt pulley 23.

[0039] Referring to Figure 3 , Figure 5The crossbeam 4 includes a positioning frame 41, and a side plate 42 is fixed to each end of the positioning frame 41 along the length direction of the crossbeam 4. Any side plate 42 is vertically arranged, and the thickness direction of the side plate 42 is parallel to the length direction of the crossbeam 4. A transmission device 3 is respectively arranged at both ends of the transmission shaft 11, and the two transmission devices 3 are respectively connected to the corresponding side plates 42. Any transmission device 3 includes a driving wheel 31, and the driving wheel 31 is coaxially fixed at one end of the transmission shaft 11. A passive wheel 32 is also arranged on the side of the frame 1 away from the driving wheel 31 along the length direction of the operating table 14. The axial directions of the driving wheel 31 and the passive wheel 32 are parallel, and the two ends of the passive wheel 32 are rotatably connected to the frame 1. An open synchronous belt 33 is wound around the driving wheel 31 and the passive wheel 32.

[0040] A fixing plate 43 is fixed to one side of any side plate 42 close to the other side plate 42, and the fixing plate 43 is arranged horizontally. The opening of the open synchronous belt 33 is located above the fixing plate 43. An L-shaped positioning plate 44 is arranged on the fixing plate 43, and a clamping plate 45 is also arranged on the positioning plate 44, and the clamping plate 45 is arranged horizontally, and one end of the open synchronous belt 33 is arranged between the positioning plate 44 and the clamping plate 45. The clamping plate 45 and the positioning plate 44 are removably fixed by bolts and nuts. Two positioning plates 44 are arranged on the fixing plate 43 at intervals along the length direction of the operating table 14, and the two positioning plates 44 are symmetrically arranged along the length direction of the operating table 14. The open synchronous belt 33 facilitates the staff to adjust the relative position of the side plate 42 frame 1, thereby facilitating the staff to adjust the relative position of the beam 4 on the operating table 14.

[0041] See also Figure 3 , Figures 5-6 , a second drive device 6 is arranged in the positioning frame 41, the second drive device 6 comprises a second drive motor 61, the housing of the second drive motor 61 is fixed to the positioning frame 41, the output shaft of the second drive motor 61 is arranged horizontally, a first synchronous wheel 62 is coaxially fixed to the output shaft of the second drive motor 61, and the axis direction of the first synchronous wheel 62 is parallel to the length direction of the operating table 14. A second synchronous wheel 63 is also arranged on the positioning frame 41, the axis direction of the second synchronous wheel 63 is parallel to the axis direction of the first synchronous wheel 62, and a second synchronous belt 64 is wound around the first synchronous wheel and the second synchronous wheel 63. A third synchronous wheel 65 and a fourth synchronous wheel 66 are also arranged on the positioning frame 41, the third synchronous wheel 65 is coaxially fixed to the second synchronous wheel 63, and both ends of the third synchronous wheel 65 and the fourth synchronous wheel 66 are respectively connected to the frame body 1 for rotation. The fourth synchronous wheel 66 and the third synchronous wheel 65 have parallel axis directions, the third synchronous wheel 65 and the fourth synchronous wheel 66 are respectively located at both ends of the length direction of the crossbeam 4, and the axis of the third synchronous wheel 65 and the axis of the fourth synchronous wheel 66 are located on the same horizontal line. A third synchronous belt 67 is wound around the third synchronous wheel 65 and the fourth synchronous wheel 66 .

[0042] The cutting device 5 further includes a mounting plate 51, which is vertically arranged and located on one side of the positioning frame 41 along the length direction of the operating table 14. The thickness direction of the mounting plate 51 is parallel to the length direction of the operating table 14. An abutment plate 52 is fixed to one side of the mounting plate 51 close to the positioning frame 41, and the abutment plate 52 is horizontally arranged. Two abutment plates 52 are arranged at intervals along the vertical direction, and the two abutment plates 52 are respectively located on both sides of the upper belt body of the third synchronous belt 67 in the thickness direction, and the two abutment plates 52 are detachably fixed by bolts and nuts.

[0043] See also Figure 2 The beam 4 is also provided with a cushion block 47 , one cushion block 47 is provided at each end of the beam 4 in the length direction, and the two cushion blocks 47 are respectively located at the extreme positions of the cutting device 5 on both sides of the beam 4 .

[0044] See also Figure 6 , an anti-collision device 7 is also provided at both ends of the positioning frame 41 along the length direction of the beam 4. Any anti-collision device 7 includes a support plate 71, which is on the positioning frame 41, and the support plate 71 is vertically arranged, and the thickness direction of the support plate 71 is parallel to the length direction of the beam 4. A support frame 73 is provided on the side of the support plate 71 away from the positioning frame 41. A guide rail 72 is fixed on the support plate 71, and the length direction of the guide rail 72 is parallel to the length direction of the operating table 14. A sliding block is fixed on the support plate 71, and the guide rail 72 is embedded in the sliding block. The sliding block and the guide rail 72 slide and cooperate along the length direction. A connecting block 78 is also provided on the support frame 73 and the support plate 71, and an elastic connecting member is provided between the two connecting blocks 78. The elastic connecting member in this embodiment is a tension spring 79, and the two ends of the tension spring 79 are respectively fixed on the two connecting blocks 78, and the axial direction of the tension spring 79 is parallel to the sliding direction of the support frame 73. The support frame 73 is provided with an anti-collision head 76 at both ends along the length direction of the operating table 14. The two anti-collision heads 76 protrude from the cutting device 5 and the crossbeam 4 on both sides along the forward direction of the operating table 14. The outer cover of the support frame 73 is provided with a shell 77, and the shell 77 protects the support frame 73 and the anti-collision head 76 from moving inside. During the cutting operation, the crossbeam 4 moves on the operating table 14. If there are other devices or debris on the operating table 14, when the crossbeam 4 moves to the side close to the other devices or debris, the anti-collision head 76 on this side will first contact with the other devices or debris, and the staff can stop the first driving device 2 in time, so that the crossbeam 4 stops moving. The sliding support frame 73 and the tension spring 79 will offset part of the thrust, thereby improving the buffering capacity of the anti-collision device 7.

[0045] A transmissive photoelectric sensor 731 is further provided on the support frame 73. The transmissive photoelectric sensor 731 includes a transmitter and a receiver. The transmitter and the receiver are respectively fixed on the support frames 73 of the two anti-collision devices 7 at both ends of the cross beam 4. The transmitter and the receiver are symmetrically arranged along the width direction of the operating table 14. Both the transmitter and the receiver are located within the two corresponding anti-collision heads 76 at both ends of the cross beam 4. A baffle 74 is further fixed on any one of the support plates 71. An avoidance groove 75 is provided on the baffle 74. The avoidance groove 75 sequentially penetrates through the baffle 74 and the anti-collision head 76 along the width direction of the operating table 14. The light beam emitted by the transmitter passes through the avoidance groove 75 on this side and exits from within the anti-collision head 76, and then passes through the avoidance groove 75 on the other side in the width direction of the operating table 14, so as to be received by the receiver. When the anti-collision head 76 on any side is pushed and moves along the length direction of the operating table 14, the light beam emitted by the transmitter will be blocked by the baffle 74, so that the receiver cannot receive the corresponding light beam. At the same time, when the moving speeds at both ends of the cross beam 4 are inconsistent, the light beam emitted by the transmitter cannot be received by the receiver either.

[0046] The cutting machine is further provided with a control system. The drive motor is electrically connected to the control system. The transmissive photoelectric sensor 731 is electrically connected to the control system. When the control system receives the signal emitted by the transmissive photoelectric sensor 731, it controls the first drive motor 21 to brake. In this way, it helps to further ensure the synchronous movement of both ends of the cross beam 4, thereby ensuring the movement accuracy of the cross beam 4 and the accuracy and quality of the finished product after cutting.

[0047] See Figure 3 , Figure 5 and Figure 6 , a pressing device 9 is further provided on the positioning frame 41. The pressing device 9 includes a pressing cylinder 91. The cylinder body of the pressing cylinder 91 is detachably fixed to the positioning frame 41. The piston rod of the pressing cylinder 91 extends and retracts vertically downward. A pressing strip 92 is fixed to the end of the piston rod of the pressing cylinder 91. The pressing strip 92 is horizontally arranged. The length direction of the pressing strip 92 is parallel to the width direction of the operating table 14. A plurality of pressing cylinders 91 are arranged at intervals along the length direction of the cross beam 4. In this embodiment, preferably three pressing cylinders 91 are provided, and the three pressing cylinders 91 are evenly spaced. The ends of the three pressing cylinders 91 are all fixed to the same pressing strip 92. The cross beam 4 drives the pressing strip 92 to smooth the sheet on the conveyor belt, especially the flexible sheet, and at the same time, during the cutting process, it ensures the flatness of the sheet. In this way, it helps to improve the quality and accuracy of the finished product after cutting.

[0048] A clamping device 8 is also provided on the positioning frame 41. The clamping device 8 includes a fixed frame fixed on the positioning frame 41. A clamping block 81 is formed on the lower side of the fixed frame. The clamping block 81 is located on the lower side of the upper cutting pad 13. A clamping cylinder 82 is also provided on the fixed frame. The cylinder body of the clamping cylinder 82 is fixedly connected to the positioning frame 41. The piston rod of the clamping cylinder 82 extends and retracts vertically downward. The end of the piston rod of the clamping cylinder 82 is located on the upper side of the upper cutting pad 13. Two clamping devices 8 are symmetrically arranged on the cross beam 4 along the width direction of the operating table 14. Before the cross beam 4 moves, the staff controls the piston rod of the clamping cylinder 82 to contract so that the end of the piston rod does not contact the cutting pad 13. After a section of sheet material on the operating table 14 is cut, the piston rod of the clamping cylinder 82 extends, and the end abuts against the upper side of the upper cutting pad 13. The piston rod of the clamping cylinder 82 and the clamping block 81 clamp the middle upper cutting pad 13. The first driving device 2 drives the cross beam 4 to move, thereby driving the cutting pad 13 to move to one side along the length direction of the operating table 14, so that the cut sheet material on the operating table 14 is removed from one side of the operating table 14. In this way, automatic loading and unloading can be realized, which helps to improve the working efficiency of the entire cutting machine.

[0049] See Figure 2 , groove type photoelectric sensors 15 are also provided on the side surfaces in the width direction of the operating table 14, and one groove type photoelectric sensor 15 is provided at each of the two ends in the length direction of the operating table 14. A baffle 46 is fixed on any one of the side plates 42, and the baffle 46 is arranged corresponding to the groove type photoelectric sensor 15. When the cross beam 4 moves to the extreme position on one side in the length direction of the operating table 14, the baffle 46 is inserted into any one of the groove type photoelectric sensors 15 along the length direction of the operating table 14. The groove type photoelectric sensor 15 is electrically connected to the operating system. In actual work, when the cross beam 4 moves to the extreme position on any one side in the length direction of the operating table 14, after the operating system receives the signal sent by the groove type photoelectric sensor 15 after the baffle 46 is inserted into the groove type photoelectric sensor 15, the operating system controls the first driving motor 21 to stop rotating. In this way, it helps to avoid the situation that the cross beam 4 continues to move after moving to the extreme position, and helps to improve the safety of the cutting machine.

[0050] The implementation principle of a cutting machine with a highly stable crossbeam in an embodiment of the present application is as follows: Before the cutting operation, the staff first place one end of the sheet at one end of the cutting pad 13 along the length direction of the operating table 14. The driving pressing cylinder 91 contracts, and the driving clamping cylinder 82 extends, so that the pressing strip 92 moves upward, and the end of the piston rod of the clamping cylinder 82 and the clamping block 81 clamp the cutting pad 13. The first driving motor 21 drives the transmission shaft 11 to rotate through the first belt pulley 22, the second belt pulley 23 and the first synchronous belt 24. The transmission shaft 11 drives the synchronous belts 33 with openings on both sides, as well as the driving wheel 31 and the driven wheel 32 to rotate. The L-shaped positioning plate 44 and the clamping plate 45 fix the side plates 42 on both sides of the crossbeam 4 at the gap between the two synchronous belts 33 with openings. The staff needs to adjust the relative positions of the two synchronous belts 33 with openings in advance to make the length direction of the crossbeam 4 parallel to the width direction of the operating table 14. The rotation of the synchronous belts 33 with openings drives the two ends of the crossbeam 4 to move synchronously, so as to drive the cutting pad 13 to move through the clamping device 8, make the sheet move forward, move to the lower side of the crossbeam 4, and complete the feeding.

[0051] The clamping cylinder 82 contracts, thus loosening the cutting pad 13, and the cutting pad 13 stops moving. The first driving device 2 continues to drive the crossbeam 4 to move. At the same time, the second driving motor 61 is started, and the second synchronous belt 64 is driven through the first synchronous pulley 62, so as to drive the second synchronous pulley 63 to rotate. The second synchronous pulley 63 drives the third synchronous pulley 65, so as to drive the third synchronous belt 67 to move. The entire cutting device is fixed on its third synchronous belt 67 through the mounting plate 51 and the abutting plate 52, so that the entire cutting device moves along the width direction of the operating table 14 with the third synchronous belt 67. The staff controls the cutting knife to cut the sheet. After the cutting is completed, the piston rod of the clamping cylinder 82 extends, and the end of the piston rod and the clamping block 81 clamp the cutting pad 13. The movement of the crossbeam 4 drives the cutting pad 13 to move, so as to drive the cut sheet to move out from under the crossbeam 4, thus completing the discharging. The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A cutting machine with a crossbeam of high stability, characterized in that: It includes a frame body (1). An operating table (14) is arranged inside the frame body (1). A cross beam (4) is erected on the operating table (14). The cross beam (4) slides along the length direction of the operating table (14) relative to the frame body (1). A transmission shaft (11) is arranged on the frame body (1). The length direction of the transmission shaft (11) is parallel to the width direction of the operating table (14). Both ends of the transmission shaft (11) are rotatably connected to the frame body (1). A first driving device (2) for driving the transmission shaft (11) to rotate around its own axis is arranged on the frame body (1). A transmission device (3) for driving one end of the cross beam (4) to move along the length direction of the operating table (14) is arranged on the transmission shaft (11). One transmission device (3) is arranged at each of the two ends of the transmission shaft (11). A cutting device (5) is arranged on the cross beam (4). The cutting device (5) is slidably matched with the cross beam (4) along the length direction of the cross beam (4). A second driving device (6) for driving the cutting device (5) to slide is arranged inside the cross beam (4).

2. The cutting machine with a crossbeam of high stability according to claim 1, characterized in that: The transmission shaft (11) is located at one end of the frame body (1) along the length direction of the operating table (14). Any one of the transmission devices (3) includes a driving wheel (31) and a driven wheel (32). The driving wheel (31) is coaxially fixed at one end of the transmission shaft (11). The driven wheel (32) is located at one end of the operating table (14) in the length direction away from the driving wheel (31). An open synchronous belt (33) is wound around the driving wheel (31) and the driven wheel (32). Side plates (42) are respectively arranged at both ends of the cross beam (4). A fixing plate (43) is arranged on the side plate (42). The fixing plate (43) is horizontally arranged. A clamping plate (45) is arranged on the fixing plate (43). Two clamping plates (45) are arranged at intervals along the length direction of the operating table (14). Both ends of the open synchronous belt (33) are respectively fixed between the two clamping plates (45) and the fixing plate (43).

3. A cutting machine with a crossbeam of high stability according to claim 1, characterized in that: The first driving device (2) includes a first driving motor (21). The housing of the first driving motor (21) is fixed on the lower side of the operating table (14). The axis of the output shaft of the first driving motor (21) is parallel to the axis of the transmission shaft (11). A first belt pulley (22) is also coaxially fixed on the output shaft of the first driving motor (21). A second belt pulley (23) is coaxially fixed on the transmission shaft (11). A first synchronous belt (24) is wound around the first belt pulley (22) and the second belt pulley (23).

4. A cutting machine with a crossbeam of high stability according to claim 1, characterized in that: A collision prevention device (7) is respectively arranged at both ends of the cross beam (4). The collision prevention device (7) includes a support plate (71). The support plate (71) is fixedly connected to one end of the frame body (1) in the length direction. A support frame (73) is arranged on the support plate (71). The support frame (73) is slidably matched with the support plate (71) along the length direction of the operating table (14). Collision prevention heads (76) are respectively fixed at both ends of the support frame (73) along the length direction of the operating table (14). The two collision prevention heads (76) respectively protrude from the cutting device (5) and the cross beam (4).

5. The cutting machine with a crossbeam of high stability according to claim 4, characterized in that: A transmissive photoelectric sensor (731) is further provided on the support frame (73). The transmitter and the receiver of the transmissive photoelectric sensor (731) are respectively arranged at two ends of the cross beam (4), and the transmitter and the receiver of the transmissive photoelectric sensor (731) are symmetrically arranged along the width direction of the operating table (14).

6. The cutting machine with a crossbeam of high stability according to claim 1, characterized in that: A positioning roller (12) is further provided on the frame body (1). The positioning roller (12) is horizontally arranged, the axial direction of the positioning roller (12) is parallel to the width direction of the operating table (14), both ends of the positioning roller (12) are rotatably connected to the frame body (1), one positioning roller (12) is arranged at each of the two ends in the length direction of the operating table (14), and a cutting pad (13) is wound around the two positioning rollers (12).

7. The cutting machine with a crossbeam of high stability according to claim 6, characterized in that: A clamping device (8) is further provided on the cross beam (4). The clamping device (8) includes a clamping block (81). The clamping block (81) is located between the cutting pad (13) and the operating table (14). A clamping cylinder (82) is arranged on the cross beam (4). The cylinder body of the clamping cylinder (82) is relatively fixed to the cross beam (4). The telescopic direction of the piston rod of the clamping cylinder (82) is vertically arranged. The end of the piston rod of the clamping cylinder (82) is located above the clamping block (81). The upper cutting pad (13) is located between the end of the piston rod of the clamping cylinder (82) and the support plate (71). One clamping device (8) is arranged on each side of the cross beam (4).

8. A cutting machine with a crossbeam of high stability according to claim 1, characterized in that: A pressing device (9) is further provided on the cross beam (4). The pressing device (9) includes a pressing cylinder (91). The telescopic direction of the pressing cylinder (91) is vertically arranged. The cylinder body of the pressing cylinder (91) is relatively fixed to the cross beam (4). A pressing strip (92) is fixed to the end of the piston rod of the pressing cylinder (91). The length direction of the pressing strip (92) is parallel to the width direction of the operating table (14).

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