A flexible CNC laser cutting blanking production line for sheet metal

By designing a toothed conveyor belt and a sliding and positioning part for the frame in a CNC laser cutting equipment, the problems of offset and residue of flexible sheet materials during the cutting process are solved, achieving stable conveying and cleaning of the sheet materials and improving the cutting quality.

CN121467969BActive Publication Date: 2026-04-03广东玛哈特智能装备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-01-07
Publication Date
2026-04-03

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Abstract

This invention relates to the field of CNC laser equipment technology, and mainly to a flexible CNC laser cutting blanking production line for sheet metal. It includes a toothed conveyor belt for supporting the flexible sheet metal, and frame frames at both ends of the toothed conveyor belt. A transmission belt fixed to the outer end of the toothed conveyor belt is disposed within the frame frames, and an inner plate is fixed within the frame frames. A track slide opening is provided on the inner plate, and the inner plate is fixed to the side wall of the frame frame at the inner side of the track slide opening. A sliding part is slidably inserted within the track slide opening. A removal plate for cleaning residual sheet metal is installed between the sliding parts of the two frame frames. This invention optimizes the traditional flexible sheet metal cutting and conveying section. Through the added positioning part, the flexible sheet metal can be effectively and actively positioned, ensuring stability and preventing displacement during the conveying and cutting process. Simultaneously, it actively cleans residual debris from the bottom of the conveyor belt, preventing waste material from affecting the subsequent positioning and conveying of sheet metal.
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Description

Technical Field

[0001] This invention relates to the field of CNC laser equipment technology, specifically to a flexible CNC laser cutting blanking production line for sheet metal. Background Technology

[0002] Flexible laser cutting machines are industrial-grade laser cutting equipment designed for flexible materials (flexible metal coils / thin sheets, as well as flexible non-metallic materials). The core difference between them and traditional rigid laser cutting machines (which are only designed for processing fixed single sheets) is that they feature continuous, non-rigid fixed processing capabilities and multi-specification adaptability, and are especially suitable for automated steel coil uncoiling and cutting production lines.

[0003] Because flexible sheets used in flexible processing are mostly continuously conveyed, the worktable often uses a non-rigid design (such as without rigid clamps), which cannot precisely fix the material like a rigid machine tool, making the material prone to relative movement during cutting. At the same time, the remaining sheet waste after cutting is not cleaned up by a dedicated person; it is simply transported to the bottom by a toothed conveyor belt and falls off automatically by gravity. If some fragments fall into the gaps between the toothed conveyors and get stuck, they cannot effectively fall off and detach, causing subsequent sheet material to shift, affecting the cutting quality. Summary of the Invention

[0004] The purpose of this invention is to provide a flexible production line for CNC laser cutting blanking of sheet metal, so as to solve the problems mentioned in the background art of the flexible sheet metal being easily misaligned and the residual sheet metal affecting subsequent cutting during the cutting process of existing flexible laser cutting equipment.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a CNC laser cutting and blanking flexible production line for sheet metal, comprising a toothed conveyor belt for supporting the flexible sheet metal, and frame frames disposed at both ends of the toothed conveyor belt. A transmission belt fixed to the outer end of the toothed conveyor belt is disposed within the frame frames, and an inner plate is fixed within the frame frames. A track slide opening is provided on the inner plate, and the inner plate is fixed to the side wall of the frame frame at the inner side of the track slide opening. A sliding part is slidably inserted within the track slide opening. A removal plate for cleaning residual sheet metal is installed between the sliding parts of the two frame frames, and a synchronization frame plate is also provided. The synchronization frame plate is fixed on the transmission belt, and the sliding part is inserted within the synchronization frame plate. A positioning part is also provided within the synchronization frame plate, located within the frame frame, and used for positioning the flexible sheet metal.

[0006] Preferably, the sliding part includes a sliding rod that is slidably inserted into the first track slide opening. The outer end of the sliding rod is slidably inserted into the synchronous frame plate and fixed to the outer end of the removal plate. The other end is fixed with a connecting plate. The outer wall of the inner plate is fixed with a track groove that matches the first track slide opening. A roller that slidably engages with the track groove is rotatably installed inside the connecting plate.

[0007] Preferably, the positioning part includes a positioning rod, and a second track slide is provided on the outer side of the frame. The positioning rod is slidably inserted into the second track slide and slidably connected with the synchronous frame plate. Arc plates are fixed on the inner side of the two frames located in the second track slide, and the stability of the frames is maintained by the arc plates. A telescopic rod is threaded into the outer end of the positioning rod, and a positioning pad is fixed to the outer end of the telescopic rod. A docking seat is fixed to the other end. A track protrusion adapted to the second track slide is fixed on the outer wall of the inner plate on the side away from the track recess, and the docking seat is slidably inserted into the track protrusion.

[0008] Preferably, the removal plate has interfaces at both ends, and a lead screw and a slide rod are fixed inside the interfaces. An adjusting seat is threaded onto the outside of the lead screw, and the adjusting seat is slidably sleeved with the slide rod. A fitting pad adapted to the positioning pad is fixed on the adjusting seat.

[0009] Preferably, the lower end of the track slide is provided with a downwardly movable extension end, which is moved into the extension end by the sliding rod, so that the removal plate moves down to the outside of the toothed conveyor belt.

[0010] Preferably, the upper two ends of the second track slide are provided with detachment ends, and the positioning rod moves to the detachment ends to make the positioning pad detach from the flexible plate.

[0011] Preferably, a recessed end is provided below the track protrusion, and the positioning pad moves toward the frame by moving the docking seat to the recessed end.

[0012] Preferably, the arc-shaped plate is fitted to the toothed conveyor belt to facilitate the discharge of residual material on the outer side.

[0013] Preferably, both the positioning pad and the bonding pad are made of rubber, which has friction and can also prevent contact from causing damage to the board.

[0014] Preferably, the outer end of the adjusting seat is provided with a threaded groove for easy adjustment. The design of the threaded groove makes it convenient for personnel to rotate and adjust it.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention optimizes the traditional flexible sheet cutting and conveying section. By adding a positioning part, the flexible sheet can be actively positioned, so that the sheet remains stable during the conveying and cutting process and will not deviate. At the same time, residual debris is actively cleaned from the bottom of the conveyor belt to prevent debris and waste sheet from affecting the positioning and conveying of subsequent sheets. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the overall structure of the present invention from another angle;

[0019] Figure 3 This is a schematic diagram of the structure of the frame after partial cross-section.

[0020] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is a schematic diagram of the structure of the frame of the present invention from another angle after partial cross-section.

[0022] Figure 6 This is a schematic diagram showing the positional relationship between the positioning part and the removal plate of the present invention;

[0023] Figure 7 for Figure 6 Enlarged view at point B in the middle;

[0024] Figure 8 This is a partial cross-sectional rear view of the present invention;

[0025] Figure 9 This is a schematic diagram showing the positional relationship between the protruding and recessed ends of the track in this invention.

[0026] In the diagram: 1. Toothed conveyor belt; 2. Frame; 3. Conveyor belt; 4. Inner plate; 5. Track slide one; 6. Sliding part; 7. Removal plate; 8. Synchronous frame plate; 9. Positioning part; 10. Sliding rod; 11. Connecting plate; 12. Track recessed strip; 13. Roller; 14. Positioning rod; 15. Track slide two; 16. Arc plate; 17. Telescopic rod; 18. Positioning pad; 19. Docking seat; 20. Track protrusion; 21. Docking interface; 22. Lead screw; 23. Adjusting seat; 24. Fitting pad; 25. Extension end; 26. Detachment end; 27. Recessed end. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1: Please refer to Figures 1-5The figure shows a CNC laser cutting flexible production line for sheet metal, including a toothed conveyor belt 1 for supporting the flexible sheet metal, and frame 2 set at both ends of the toothed conveyor belt 1. A transmission belt 3 fixed to the outer end of the toothed conveyor belt 1 is set inside the frame 2. An inner plate 4 is fixed inside the frame 2. A track slide opening 5 is opened on the inner plate 4. The inner plate 4 is fixed to the side wall of the frame 2 at the inner side of the track slide opening 5. A sliding part 6 is slidably inserted in the track slide opening 5. A removal plate 7 for cleaning residual sheet metal is installed between the sliding parts 6 of the two frame 2, and a synchronous frame plate 8 is fixed on the transmission belt 3. The sliding part 6 is inserted in the synchronous frame plate 8. A positioning part 9 is also set in the synchronous frame plate 8. The positioning part 9 is located inside the frame 2 and is used to position the flexible sheet metal.

[0029] In this scheme, the designed conveyor belt 3 drives the toothed conveyor belt 1 to rotate in a cycle, thereby realizing the conveying of the flexible sheet. During the conveying process, the synchronous frame plate 8, the sliding part 6, and the positioning part 9 move synchronously with the sheet, thereby enabling the active positioning of the flexible sheet, and subsequently, the removal plate 7 is used to actively clean up the waste material of the cut sheet.

[0030] For further details, please refer to [link / reference]. Figures 3-5 The sliding part 6 includes a sliding rod 10 that is slidably inserted into the track slide opening 5. The outer end of the sliding rod 10 is slidably inserted into the synchronous frame plate 8 and fixed to the outer end of the removal plate 7. The other end is fixed with a connecting plate 11. The outer wall of the inner plate 4 is fixed with a track recess 12 that is adapted to the track slide opening 5. A roller 13 that is slidably connected to the track recess 12 is rotatably installed in the connecting plate 11. In order to improve stability, an I-shaped slide tube is provided on the outer side of the sliding rod 10 inside the track slide opening 5 to improve sliding stability.

[0031] Also see Figure 8 The lower end of the track slide 5 is provided with a downwardly movable extension end 25. The slide rod 10 moves to the extension end 25, so that the removal plate 7 moves down to the outside of the toothed conveyor belt 1.

[0032] The principle behind this solution for actively cleaning residual scrap materials and waste boards within the toothed conveyor belt 1 is as follows:

[0033] First, the power provided by the conveyor belt 3 drives the toothed conveyor belt 1 and the synchronous frame plate 8 to rotate in a cycle, thereby driving the sliding rod 10 to move actively along the track slide opening 5. After moving to the bottom of the track slide opening 5, the sliding rod 10 will move down a certain distance due to the extension end 25, causing the removal plate 7 to move down and separate from the toothed conveyor belt 1. This allows for the active cleaning of residual waste plates in the toothed conveyor belt 1, preventing scrap waste plates from being left in the toothed conveyor belt 1.

[0034] For further details, please refer to [link / reference]. Figures 6-9The positioning part 9 includes a positioning rod 14. A second track slide 15 is provided on the outer side of the frame 2. The positioning rod 14 is slidably inserted into the second track slide 15 and slidably inserted into the synchronous frame plate 8. An arc plate 16 is fixed on the inner side of the two frames 2 located in the second track slide 15, and the stability of the frames 2 is maintained by the arc plate 16. A telescopic rod 17 is threaded into the outer end of the positioning rod 14. A positioning pad 18 is fixed to the outer end of the telescopic rod 17, and a docking seat 19 is fixed to the other end. A track protrusion 20 adapted to the second track slide 15 is fixed on the outer wall of the inner plate 4 on the side away from the track recess 12. The docking seat 19 is slidably inserted into the track protrusion 20. An I-shaped slide tube is provided on the outer side of the positioning rod 14 inside the second track slide 15 to improve sliding stability.

[0035] Also see Figure 8 The upper ends of the two sides of the track slide 15 are provided with release ends 26. The positioning rod 14 moves to the release end 26, so that the positioning pad 18 is released from the flexible plate.

[0036] See also Figure 9 The track protrusion 20 has a recessed end 27 below it. The positioning pad 18 moves towards the frame 2 by moving the docking seat 19 to the recessed end 27.

[0037] In this solution, the principle of active positioning of the flexible sheet material is utilized by the positioning unit 9:

[0038] First, the power provided by the conveyor belt 3 drives the toothed conveyor belt 1 and the synchronous frame plate 8 to rotate in a cycle, thereby driving the positioning rod 14 to move along the track slide 15. When it moves above the toothed conveyor belt 1, it will drive the positioning pad 18 to abut against the plate, thereby achieving active positioning of the flexible plate. Then, as the conveyor belt 3 rotates, it moves with the flexible plate, making the flexible plate more stable during cutting and avoiding product quality problems caused by the deviation of the flexible plate.

[0039] Afterwards, after the positioning rod 14 moves to the detachment end 26, the positioning rod 14 will move upward, thereby causing the positioning pad 18 to rise and detach from the flexible board, which facilitates the separation of the product from the board after cutting and also facilitates the falling off of the waste board.

[0040] Finally, after moving to below the toothed conveyor belt 1, the removal plate 7 will move down to actively remove the remaining broken plates. In order not to block the downward movement of the removal plate 7, the positioning rod 14 is retracted by the recessed end 27 designed on the track protrusion 20, so as not to affect the active downward movement of the removal plate 7.

[0041] It should also be noted that the telescopic rod 17 is connected by a threaded plug, which allows the position of the subsequent positioning pad 18 to be adjusted to meet the mutual positioning of the flexible board at different positions.

[0042] In this scheme, two frame 2 are fixed with arc-shaped plates 16 inside the second track slide 15, and the stability of the frame 2 is maintained by the arc-shaped plates 16. The arc-shaped plates 16 are fixed between the two frame 2 by the bracket, so as to ensure that after the second track slide 15 is opened on the frame 2, the frame 2 will not separate from the frame 2 inside the second track slide 15. By designing the arc-shaped plates 16 to fit the toothed conveyor belt 1, it is also convenient to discharge the residual edge material on the outside.

[0043] Example 2: Please refer to Figures 6-8 This embodiment further explains the first embodiment, the difference being that the structure of the removed plate 7 is optimized, and the positioning effect of the flexible plate is improved by adding bonding pads 24 and other related components.

[0044] Specifically, the two ends of the removal plate 7 are provided with interface 21. A lead screw 22 and a slide rod are fixed inside the interface 21. An adjustment seat 23 is threaded on the outside of the lead screw 22. The adjustment seat 23 is slidably sleeved with the slide rod. A fitting pad 24 adapted to the positioning pad 18 is fixed on the adjustment seat 23. In order to improve the fitting friction and avoid rigid contact that could damage the flexible plate, both the positioning pad 18 and the fitting pad 24 are made of rubber.

[0045] In this solution, the bonding pad 24 designed inside the removal plate 7 cooperates with the positioning pad 18 to achieve the abutment of the two sides of the flexible board, thereby achieving the positioning effect and preventing the positioning pad 18 from squeezing the flexible board and causing the flexible board to bend and deform. At the same time, the outer end of the adjustment seat 23 is provided with a threaded groove for easy adjustment, so that the bonding pad 24 can be adjusted to the position of the positioning pad 18.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended technical solutions and their equivalents.

Claims

1. A flexible CNC laser cutting blanking production line for sheet metal, comprising: Toothed conveyor belt for flexible sheet support (1); Its characteristic is that it further includes: A frame (2) is provided at both ends of the toothed conveyor belt (1). A conveyor belt (3) is provided inside the frame (2) and fixed to the outer end of the toothed conveyor belt (1). An inner plate (4) is fixed inside the frame (2). A track slide opening (5) is provided on the inner plate (4). The inner plate (4) is located inside the track slide opening (5) and fixed to the side wall of the frame (2). A sliding part (6) is slidably inserted inside the track slide opening (5). A removal plate (7) for cleaning residual board material is installed between the sliding parts (6) of the two frames (2). A synchronous frame plate (8) is fixed on a conveyor belt (3). A sliding part (6) is inserted into the synchronous frame plate (8). A positioning part (9) is also provided inside the synchronous frame plate (8). The positioning part (9) is located inside the frame (2) and is used to position the flexible sheet material. The sliding part (6) includes a sliding rod (10) that is slidably inserted into the first track slide (5). The outer end of the sliding rod (10) is slidably inserted into the synchronous frame plate (8) and fixed to the outer end of the removal plate (7). A connecting plate (11) is fixed to the other end. A track groove (12) that is adapted to the first track slide (5) is fixed on the outer wall of the inner plate (4). A roller (13) that is slidably connected to the track groove (12) is rotatably installed inside the connecting plate (11). The positioning part (6) is used to position the flexible sheet material. Part (9) includes a positioning rod (14). A second track slide (15) is provided on the outer side of the frame (2). The positioning rod (14) is slidably inserted into the second track slide (15) and slidably inserted into the synchronous frame plate (8). An arc plate (16) is fixed on the inner side of the two frames (2) located in the second track slide (15) and the stability of the frame (2) is maintained by the arc plate (16). A telescopic rod (17) is threaded into the outer end of the positioning rod (14), and a positioning pad (18) is fixed to the outer end of the telescopic rod (17). A docking seat (19) is fixed to the other end. A track protrusion (20) that is compatible with the second track slide (15) is fixed on the outer wall of the inner plate (4) away from the track groove (12), and the docking seat (19) is slidably inserted into the track protrusion (20).

2. The flexible CNC laser cutting blanking production line for sheet metal according to claim 1, characterized in that: The removal plate (7) has a connection interface (21) at both ends. A lead screw (22) and a slide rod are fixed inside the connection interface (21). An adjustment seat (23) is threaded onto the outside of the lead screw (22). The adjustment seat (23) is slidably connected to the slide rod. A fitting pad (24) that is compatible with the positioning pad (18) is fixed on the adjustment seat (23).

3. The flexible CNC laser cutting blanking production line for sheet metal according to claim 1, characterized in that: The lower end of the track slide (5) is provided with a downwardly moving extension end (25), which moves into the extension end (25) by the sliding rod (10), so that the removal plate (7) moves down to the outside of the toothed conveyor belt (1).

4. A flexible CNC laser cutting blanking production line for sheet metal according to claim 2, characterized in that: The upper ends of the second track slide (15) are provided with detachment ends (26). The positioning rod (14) moves to the detachment end (26) so that the positioning pad (18) is detached from the flexible plate.

5. A flexible CNC laser cutting blanking production line for sheet metal according to claim 1, characterized in that: The track protrusion (20) has a recessed end (27) below it. The docking seat (19) moves to the recessed end (27), so that the positioning pad (18) moves toward the frame (2).

6. A flexible CNC laser cutting blanking production line for sheet metal according to claim 1, characterized in that: The arc-shaped plate (16) is fitted to the toothed conveyor belt (1) to facilitate the discharge of residual material on the outer side.

7. A flexible CNC laser cutting blanking production line for sheet metal according to claim 2, characterized in that: Both the positioning pad (18) and the bonding pad (24) are made of rubber.

8. A flexible CNC laser cutting blanking production line for sheet metal according to claim 2, characterized in that: The adjusting seat (23) has a threaded groove at its outer end for easy adjustment.

Citation Information

Patent Citations

  • Thin plate laser cutting device and laser cutting method

    CN116213963A

  • Plate laser cutting machine

    CN118808932A