Sheet die cutting waste discharge device

Abstract

The utility model provides a waste discharge device for sheet die cutting, which relates to the technical field of sheet processing and comprises a tool apron, an intermittent air suction bottom roller and an air suction die cutting knife roller are arranged on the tool apron, a plurality of first air suction holes are arranged on the peripheral surface of the intermittent air suction bottom roller, a plurality of second air suction holes are arranged on the peripheral surface of the air suction die cutting knife roller, and the first air suction holes are communicated with the second air suction holes. A plurality of die-cutting knife sets are distributed on the peripheral face of the air suction die-cutting knife roller at equal intervals, the second air suction holes are formed in the two ends of the die-cutting knife sets, a conveying assembly is installed on the upstream of the knife holder, and a position detection assembly is installed above the conveying assembly. The die-cutting outer frame waste discharging device is characterized in that a cutter holder is arranged on the lower portion of the die-cutting outer frame waste discharging device, two waste stirring plates used for stirring die-cutting outer frame waste sheets adsorbed on an air suction die-cutting cutter roller down are arranged on the downstream portion of the cutter holder, and a waste guiding plate is arranged below the two waste stirring plates, and die-cutting and waste discharging of the sheets are achieved under the conditions that no backing paper is used for traction and only one cutter holder is used. The structure of the sheet production device is simplified, and the sheet machining efficiency and precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet processing, in particular to a sheet die-cutting and waste discharging device. Background Art

[0002] In the process of sheet processing, according to process requirements, the sheet needs to be continuously die-cut and waste discharged. The existing processing method is to first attach the sheet to the base paper, and under the traction of the traction tool holder, the base paper drives the sheet through the die-cutting tool holder. The sheet is die-cut under the cooperation of the die-cutting bottom roller and the die-cutting knife roller. Finally, through the waste discharging tool holder, the die-cut waste is discharged, and the die-cut finished product is obtained, that is, the continuous die-cutting and waste discharging of the sheet are completed. The existing processing method requires the cooperation of three tool holders, which reduces the processing accuracy of the sheet, and the sheet needs to be attached to the base paper at a certain distance, increasing the process of sheet processing and reducing the processing efficiency of the sheet.

[0003] Therefore, a sheet die-cutting and waste discharging device that solves the above problems is needed. Summary of the Utility Model

[0004] The utility model provides a sheet die-cutting and waste discharging device, which realizes die-cutting and rapid waste discharging of the sheet without the traction of the base paper and only using one tool holder, simplifies the structure of the sheet production device, and improves the processing efficiency and accuracy of the sheet.

[0005] The technical solution of the utility model is realized as follows:

[0006] The sheet die-cutting and waste discharging device includes a tool holder. Along the advancing direction of the sheet, an intermittent suction bottom roller and a suction die-cutting knife roller for cooperatively die-cutting the sheet are arranged on the tool holder. A plurality of first suction holes for adsorbing the required finished products formed after die-cutting are arranged on the outer peripheral surface of the intermittent suction bottom roller. A plurality of second suction holes for adsorbing the die-cut outer frame waste sheet formed after die-cutting are arranged on the outer peripheral surface of the suction die-cutting knife roller. A plurality of die-cutting knife groups are equidistantly distributed on the outer peripheral surface of the suction die-cutting knife roller. The second suction holes are arranged at both ends of the die-cutting knife groups. An upstream of the tool holder is provided with a conveying component for conveying the sheet between the intermittent suction bottom roller and the suction die-cutting knife roller. A position detection component for detecting the position of the sheet is installed above the conveying component. Two waste sheet deflectors for deflecting the die-cut outer frame waste sheet adsorbed on the suction die-cutting knife roller are installed downstream of the tool holder. A waste sheet guide plate is installed below the two waste sheet deflectors.

[0007] As a preferred technical solution, the arc surface on the outer peripheral surface of the suction die-cutting roller, which is oppositely arranged to the intermittent suction bottom roller, is a die-cutting arc surface. A suction arc surface for adsorbing the waste sheet of the die-cut outer frame is connected downstream of the die-cutting arc surface. The lower ends of the two waste deflectors cover the second suction holes downstream of the suction arc surface, so that the outer frame waste is separated from the adsorption of the second suction holes and falls onto the waste guide plate.

[0008] As a preferred technical solution, each die-cutting knife group includes a plurality of die-cutting knives. Each die-cutting knife includes two arc-shaped end edges and two straight side edges integrally arranged. The two ends of the two straight side edges are respectively connected to the ends of the corresponding two arc-shaped end edges. The distances between adjacent die-cutting knives in each die-cutting knife group are equal.

[0009] As a preferred technical solution, a plurality of bottom roller axial suction channels are arranged on the intermittent suction bottom roller. Each first suction hole is communicated with the corresponding bottom roller axial suction channel. A bottom roller suction disc is installed on the intermittent suction bottom roller. One side of the bottom roller suction disc abuts against one end face of the intermittent suction bottom roller. A bottom roller suction groove for communicating the first suction element with the bottom roller axial suction channel is provided on the bottom roller suction disc. The bottom roller suction groove is arc-shaped and arranged on the side wall of the bottom roller suction disc that abuts against the intermittent suction bottom roller.

[0010] As a preferred technical solution, a plurality of knife roller axial suction channels are arranged on the suction die-cutting roller. Each second suction hole is communicated with the corresponding knife roller axial suction channel. A knife roller suction disc is installed on the suction die-cutting roller. One side of the knife roller suction disc abuts against one end face of the suction die-cutting roller. A knife roller suction groove for communicating the second suction element with the knife roller axial suction channel is provided on the knife roller suction disc. The knife roller suction groove is arc-shaped and arranged on the side wall of the knife roller suction disc that abuts against the suction die-cutting roller.

[0011] As a preferred technical solution, the conveying assembly includes a conveyor belt mounting frame installed on the tool holder. A first driving shaft and a first driven shaft are rotatably installed on the conveyor belt mounting frame. Two first conveyor belts are wound around the first driving shaft and the first driven shaft. A second driving shaft and a second driven shaft are rotatably installed on the conveyor belt mounting frame. Two second conveyor belts are wound between the second driving shaft and the second driven shaft. The two second conveyor belts are respectively arranged below the two first conveyor belts. A conveying gap for conveying the sheet is formed between each first conveyor belt and the corresponding second conveyor belt. During the process of conveying the sheet, each first conveyor belt and the corresponding second conveyor belt clamp one end of the sheet and convey it towards the direction close to the tool holder.

[0012] As a preferred technical solution, the position detection component includes a position detection mounting frame fixedly installed on the tool holder. Two optoelectronic position sensors arranged front and back are fixedly installed on the position detection mounting frame, and each optoelectronic position sensor is arranged between the two first conveyor belts.

[0013] By adopting the above technical solution, the beneficial effects of the present utility model are as follows:

[0014] Since the sheet die-cutting waste discharging device includes an intermittent air-suction bottom roller and an air-suction die-cutting knife roller, during the process of die-cutting the sheet using this device, under the cooperation of the conveying component and the position detection component, the sheets enter the tool holder in sequence at a certain distance. Under the coordinated cooperation of the intermittent air-suction bottom roller and the air-suction die-cutting knife roller, the sheets are die-cut into required finished products. The waste sheet of the die-cut outer frame formed by die-cutting is adsorbed by the second air-suction holes on the air-suction die-cutting knife roller and rotates with the air-suction die-cutting knife roller. When the waste sheet of the die-cut outer frame moves to the position of the waste deflector, the waste deflector covers the second air-suction holes. At this time, the second air-suction holes corresponding to the front end of the waste sheet of the die-cut outer frame fail, and the waste deflector extends into the front end of the waste sheet of the die-cut outer frame, starting to separate the front end of the waste sheet of the die-cut outer frame from the air-suction die-cutting knife roller. With the rotation of the air-suction die-cutting knife roller, the corresponding second air-suction holes of the waste sheet of the die-cut outer frame fail in sequence, and the waste deflector quickly deflects the waste sheet of the die-cut outer frame in sequence until the rear end of the waste sheet of the die-cut outer frame also separates from the air-suction die-cutting knife roller, causing the waste sheet of the die-cut outer frame to fall onto the waste guide plate under the action of gravity and be conveyed to the specified position along the waste guide plate, replacing the intermittent air-suction waste discharging of the prior art and greatly improving the waste discharging speed.

[0015] The required finished products formed by die-cutting are adsorbed by the first air-suction holes on the intermittent air-suction bottom roller and rotate with the intermittent air-suction bottom roller. After the required finished products move to the designated position, the adsorption of the required finished products by the first air-suction holes stops, causing the required finished products to fall to the specified position, realizing the die-cutting of the sheets and also realizing the separation and conveying of the waste sheet of the die-cut outer frame and the required finished products.

[0016] In the present utility model, under the conveyance of the conveying component, the conveyance of the sheets to the tool holder is realized. Through the cooperation of the intermittent air-suction bottom roller and the air-suction die-cutting knife roller, the die-cutting of the sheets is realized. After die-cutting, through the cooperation of the first air-suction holes, the second air-suction holes and the waste deflector, the separation of the waste sheet of the die-cut outer frame and the required finished products and their conveyance to the specified position are realized. Only one tool holder is used and there is no bottom paper traction, simplifying the structure of the sheet production device, improving the production efficiency of the sheets, and avoiding the influence of the cooperation of multiple tool holders on the production accuracy of the sheets.

[0017] Since a conveying component and a position detection component are installed upstream of the tool holder, the conveying component includes two first conveyor belts and two second conveyor belts. During the process of processing the sheet material, the sheet material can be conveyed into the conveying gap through another conveying device. Both ends of the sheet material are clamped by the first conveyor belt and the second conveyor belt and conveyed towards the direction close to the tool holder. During the conveying process, the photoelectric position sensor detects the position of the sheet material. By adjusting the speeds of the first conveyor belt and the second conveyor belt, it is ensured that the sheet material enters the tool holder at a certain distance, so that the sheet material adapts to the die-cutting tool groups evenly distributed on the outer peripheral surface of the suction die-cutting roller. In the present utility model, through the conveying of the sheet material by the conveying component and the position detection of the sheet material by the position detection component, during the conveying process, both ends of the sheet material are clamped by the first conveyor belt and the second conveyor belt. Compared with the traditional conveyor belt, the relative displacement between the sheet material and the conveyor belt is reduced, and the sheet material is conveyed towards the tool holder at a certain distance, thereby ensuring that the sheet material is accurately die-cut by one of the die-cutting tool groups.

[0018] Since the intermittent suction bottom roller is provided with a bottom roller axial suction channel, after die-cutting is completed, the required finished product is adsorbed on the intermittent suction bottom roller under the action of the first suction holes and rotates therewith. As the intermittent suction bottom roller rotates, when the required finished product moves to the specified position, the bottom roller suction groove is disconnected from the first suction holes that adsorb the required finished product, and the required finished product falls to the specified position under the action of gravity. In the present utility model, through the cooperation of the bottom roller suction groove and the first suction holes, the required finished product is conveyed to the specified position. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a structural schematic diagram of the present utility model;

[0021] Figure 2 is a structural schematic diagram of another perspective of the present utility model;

[0022] Figure 3 is a structural schematic diagram of the suction die-cutting roller;

[0023] Figure 4 is a structural schematic diagram of the unfolded outer peripheral surface of the die-cutting roller body;

[0024] Figure 5 is a structural schematic diagram of the knife roller suction disc;

[0025] Figure 6It is a schematic structural diagram of an intermittent air suction bottom roller;

[0026] Figure 7 It is a schematic structural diagram of the bottom roller air suction disc;

[0027] Figure 8 It is a schematic structural diagram of the conveying assembly;

[0028] Figure 9 It is a state reference diagram during the sheet die-cutting process;

[0029] Figure 10 It is a state reference diagram after the sheet is die-cut;

[0030] Figure 11 It is a system block diagram of the controller.

[0031] Wherein: 1. Tool holder; 2. Sheet; 3. Intermittent air suction bottom roller; 4. Air suction die-cutting tool roller; 5. Required finished product; 6. First air suction hole; 7. Die-cut outer frame waste sheet; 8. Second air suction hole; 9. Waste deflector; 10. Waste guide plate; 11. Die-cut arc surface; 12. Adsorption arc surface; 13. Die-cutting tool; 14. Arc-shaped end edge; 15. Straight side edge; 16. Bottom roller axial air suction channel; 17. Bottom roller air suction disc; 18. Bottom roller air suction groove; 19. Tool roller axial air suction channel; 20. Tool roller air suction disc; 21. Tool roller air suction groove; 22. Conveyor belt mounting frame; 23. First driving shaft; 24. First driven shaft; 25. First conveyor belt; 26. Second driving shaft; 27. Second driven shaft; 28. Second conveyor belt; 29. Conveying gap; 30. Position detection mounting frame; 31. Photoelectric position sensor; 32. First rotating bearing; 33. First thrust bearing; 34. Second rotating bearing; 35. Second thrust bearing; 36. Die-cutting drive motor; 37. Conveyor belt drive motor; 38. Controller. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Such as Figures 1-11As shown together, the sheet die-cutting and waste discharging device includes a tool holder 1. Along the advancing direction of the sheet 2, an intermittent air suction bottom roller 3 and an air suction die-cutting tool roller 4 for cooperatively die-cutting the sheet 2 are arranged on the tool holder 1. A plurality of first air suction holes 6 for adsorbing the required finished products 5 formed after die-cutting are arranged on the outer peripheral surface of the intermittent air suction bottom roller 3. A plurality of second air suction holes 8 for adsorbing the die-cut outer frame waste sheet materials 7 formed after die-cutting are arranged on the outer peripheral surface of the air suction die-cutting tool roller 4. A plurality of die-cutting tool groups are equidistantly distributed on the outer peripheral surface of the air suction die-cutting tool roller 4. The second air suction holes 8 are arranged at both ends of the die-cutting tool groups. An upstream of the tool holder 1 is equipped with a conveying assembly for conveying the sheet 2 between the intermittent air suction bottom roller 3 and the air suction die-cutting tool roller 4. Above the conveying assembly is installed a position detection assembly for detecting the position of the sheet 2. Downstream of the tool holder 1 are installed two waste sheet deflectors 9 for deflecting the die-cut outer frame waste sheet materials 7 adsorbed on the air suction die-cutting tool roller 4. Below the two waste sheet deflectors 9 is installed a waste sheet guide plate 10.

[0034] As Figure 9 and Figure 10 As shown together, the arc surface of the outer peripheral surface of the air suction die-cutting tool roller 4 opposite to the intermittent air suction bottom roller 3 is a die-cutting arc surface 11. Downstream of the die-cutting arc surface 11 is connected an adsorption arc surface 12 for adsorbing the die-cut outer frame waste sheet materials 7. The lower ends of the two waste sheet deflectors 9 cover the second air suction holes 8 downstream of the adsorption arc surface 12, so that the die-cut outer frame waste sheet materials 7 are separated from the adsorption of the second air suction holes 8 and fall onto the waste sheet guide plate 10.

[0035] As Figure 4 shown, each die-cutting tool group includes a plurality of die-cutting tools 13. Each die-cutting tool 13 includes two arc-shaped end edges 14 and two straight side edges 15 integrally arranged. The two ends of the two straight side edges 15 are respectively connected to the ends of the corresponding two arc-shaped end edges 14. The distance between adjacent die-cutting tools 13 within each die-cutting tool group is equal.

[0036] As Figure 6 and Figure 7 As shown together, a plurality of bottom roller axial air suction channels 16 are arranged on the intermittent air suction bottom roller 3. Each first air suction hole 6 is communicated with the corresponding bottom roller axial air suction channel 16. A bottom roller air suction disc 17 is installed on the intermittent air suction bottom roller 3. One side of the bottom roller air suction disc 17 abuts against one end surface of the intermittent air suction bottom roller 3. A bottom roller air suction groove 18 for communicating the first air suction element with the bottom roller axial air suction channel 16 is provided on the bottom roller air suction disc 17. The bottom roller air suction groove 18 is arc-shaped and arranged on the side wall of the bottom roller air suction disc 17 abutting against the intermittent air suction bottom roller 3.

[0037] As Figure 3 and Figure 5As shown together, a plurality of axial suction channels 19 of the suction die-cutting roller 4 are provided on the suction die-cutting roller 4. Each second suction hole 8 communicates with the corresponding axial suction channel 19 of the roller. A roller suction disc 20 is installed on the suction die-cutting roller 4. One side of the roller suction disc 20 abuts against one end face of the suction die-cutting roller 4. A roller suction groove 21 for communicating the second suction element with the axial suction channel 19 of the roller is provided on the roller suction disc 20. The roller suction groove 21 is arranged in an arc shape on the side wall of the roller suction disc 20 that abuts against the suction die-cutting roller 4.

[0038] As Figure 2 and Figure 8 As shown together, the conveying assembly includes a conveyor belt mounting frame 22 installed on the tool holder 1. A first driving shaft 23 and a first driven shaft 24 are rotatably installed on the conveyor belt mounting frame 22. Two first conveyor belts 25 are wound around the first driving shaft 23 and the first driven shaft 24. A second driving shaft 26 and a second driven shaft 27 are rotatably installed on the conveyor belt mounting frame 22. Two second conveyor belts 28 are wound between the second driving shaft 26 and the second driven shaft 27. The two second conveyor belts 28 are respectively arranged below the two first conveyor belts 25. A conveying gap 29 for conveying the sheet 2 is formed between each first conveyor belt 25 and the corresponding second conveyor belt 28. During the process of conveying the sheet 2, each first conveyor belt 25 and the corresponding second conveyor belt 28 clamp one end of the sheet 2 and convey it towards the direction close to the tool holder 1.

[0039] As Figure 2 shown, the position detection assembly includes a position detection mounting frame 30 fixedly installed on the tool holder 1. A plurality of photoelectric position sensors 31 are fixedly installed on the position detection mounting frame 30. Each photoelectric position sensor 31 is arranged between the two first conveyor belts 25.

[0040] A first rotating bearing 32 is installed on one end shaft of the intermittent suction bottom roller 3. The bottom roller suction disc 17 is installed on the first rotating bearing 32. A first thrust bearing 33 is arranged on the side wall of the first suction disc that abuts against the intermittent suction bottom roller 3. A first positioning element for positioning the bottom roller suction disc 17 is arranged between the bottom roller suction disc 17 and the tool holder 1.

[0041] A second rotating bearing 34 is installed on one end shaft of the suction die-cutting roller 4. The roller suction disc 20 is installed on the second rotating bearing 34. A second thrust bearing 35 is arranged on the side wall of the roller suction disc 20 that abuts against the suction die-cutting roller 4. A second positioning element for positioning the roller suction disc 20 is arranged between the roller suction disc 20 and the tool holder 1.

[0042] Both the first positioning element and the second positioning element are positioning plates, which are not marked in the figure.

[0043] The intermittent suction bottom roller 3 and the suction die-cutting knife roller 4 are rotatably installed on the knife seat 1 from bottom to top. The die-cutting drive motor 36 is fixedly installed on the knife seat 1. The die-cutting drive motor 36 is connected to the intermittent suction bottom roller 3 through transmission. The intermittent suction bottom roller 3 and the suction die-cutting knife roller 4 are connected through transmission. The gears are not marked in the figure.

[0044] A conveyor belt drive motor 37 is fixedly mounted on the conveyor belt mounting frame 22 , and both the first driving shaft 23 and the second driving shaft 26 are transmission-connected to the conveyor belt drive motor 37 .

[0045] The first air-intake element and the second air-intake element are both air pumps, which are not marked in the figure.

[0046] The controller 38 is also included. The controller 38 is electrically connected to the die-cutting drive motor 36 , the conveyor belt drive motor 37 and the photoelectric position sensor 31 .

[0047] In summary, the utility model realizes die-cutting and waste discharge of sheets without bottom paper traction and using only one knife holder, simplifies the structure of the sheet production device, and improves the processing efficiency and precision of the sheets.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Sheet die-cutting waste discharging device, including a tool holder, characterized in that, Along the advancing direction of the sheet, an intermittent air suction bottom roller and an air suction die-cutting roller for cooperatively die-cutting the sheet are arranged on the tool holder. A plurality of first air suction holes for adsorbing the required finished products formed after die-cutting are arranged on the outer peripheral surface of the intermittent air suction bottom roller. A plurality of second air suction holes for adsorbing the die-cut outer frame waste sheet materials formed after die-cutting are arranged on the outer peripheral surface of the air suction die-cutting roller. A plurality of die-cutting tool groups are equidistantly distributed on the outer peripheral surface of the air suction die-cutting roller. The second air suction holes are arranged at both ends of the die-cutting tool groups. An upstream of the tool holder is provided with a conveying assembly for conveying the sheet between the intermittent air suction bottom roller and the air suction die-cutting roller. A position detection assembly for detecting the position of the sheet is installed above the conveying assembly. Two waste sheet deflectors for deflecting the die-cut outer frame waste sheet materials adsorbed on the air suction die-cutting roller are installed downstream of the tool holder. A waste sheet guide plate is installed below the two waste sheet deflectors.

2. The sheet die-cutting and waste discharging device according to claim 1, wherein, The arc surface of the outer peripheral surface of the air suction die-cutting roller, which is oppositely arranged to the intermittent air suction bottom roller, is a die-cutting arc surface. The downstream of the die-cutting arc surface is connected with an adsorption arc surface for adsorbing the die-cut outer frame waste sheet materials. The lower ends of the two waste sheet deflectors cover the second air suction holes downstream of the adsorption arc surface, so that the outer frame waste is separated from the adsorption of the second air suction holes and falls onto the waste sheet guide plate.

3. The sheet die-cutting and waste discharging device according to claim 1, characterized in that, Each die-cutting tool group includes a plurality of die-cutting tools. Each die-cutting tool includes two arc-shaped end edges and two straight side edges which are integrally arranged. The two ends of the two straight side edges are respectively connected with the ends of the corresponding two arc-shaped end edges. The distances between adjacent die-cutting tools in each die-cutting tool group are equal.

4. The sheet die-cutting and waste discharging device according to claim 1, characterized in that, A plurality of bottom roller axial air suction channels are arranged on the intermittent air suction bottom roller. Each first air suction hole is communicated with the corresponding bottom roller axial air suction channel. A bottom roller air suction disc is installed on the intermittent air suction bottom roller. One side of the bottom roller air suction disc abuts against one end surface of the intermittent air suction bottom roller. A bottom roller air suction groove for communicating a first air suction element with the bottom roller axial air suction channel is arranged on the bottom roller air suction disc. The bottom roller air suction groove is arc-shaped and arranged on the side wall of the bottom roller air suction disc which abuts against the intermittent air suction bottom roller.

5. The sheet die-cutting and waste discharging device according to claim 1, wherein, A plurality of tool roller axial air suction channels are arranged on the air suction die-cutting roller. Each second air suction hole is communicated with the corresponding tool roller axial air suction channel. A tool roller air suction disc is installed on the air suction die-cutting roller. One side of the tool roller air suction disc abuts against one end surface of the air suction die-cutting roller. A tool roller air suction groove for communicating a second air suction element with the tool roller axial air suction channel is arranged on the tool roller air suction disc. The tool roller air suction groove is arc-shaped and arranged on the side wall of the tool roller air suction disc which abuts against the air suction die-cutting roller.

6. The sheet die-cutting and waste discharging device according to claim 1, wherein, The conveying assembly includes a conveyor belt mounting frame installed on the tool holder. A first driving shaft and a first driven shaft are rotatably installed on the conveyor belt mounting frame. Two first conveyor belts are wound around the first driving shaft and the first driven shaft. A second driving shaft and a second driven shaft are rotatably installed on the conveyor belt mounting frame. Two second conveyor belts are wound between the second driving shaft and the second driven shaft. The two second conveyor belts are respectively arranged below the two first conveyor belts. A conveying gap for conveying the sheet material is formed between each first conveyor belt and the corresponding second conveyor belt. During the process of conveying the sheet material, each first conveyor belt and the corresponding second conveyor belt clamp one end of the sheet material and convey it towards the direction close to the tool holder.

7. The sheet die-cutting waste discharging device according to claim 6, wherein, The position detection assembly includes a position detection mounting frame fixedly installed on the tool holder. Two photoelectric position sensors arranged front and back are fixedly installed on the position detection mounting frame. Each photoelectric position sensor is arranged between the two first conveyor belts.

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