A guillotine device for preparing stamp leather

Abstract

The application relates to the technical field of cutter devices, in particular to a cutter device for preparing stamp leather, which comprises a cutter mechanism, a rectangular structure composed of a first fixed horizontal plate, a second sliding vertical plate, a second sliding horizontal plate and a first sliding vertical plate, triangular long cutters fixedly installed at the bottom of the first fixed horizontal plate, the second sliding vertical plate, the second sliding horizontal plate and the first sliding vertical plate, required stamp leather cut by the four triangular long cutters downward, a first driving mechanism for forming rectangular structures with multiple lengths and widths by the first fixed horizontal plate, the second sliding vertical plate, the second sliding horizontal plate and the first sliding vertical plate, and stamp leather cut is collected in the rectangular structure; a pushing mechanism which pushes out the collected stamp leather, and the pushing mechanism automatically adjusts the four corners of the corresponding stamp leather. The device can adjust the length and width of the cut stamp leather, and can automatically adjust the position of the pushing plate for pushing the stamp leather, so that the collected stamp leather is stably moved to the required position.

Description

Technical Field

[0001] This invention relates to the field of cutting device technology, and more particularly to a cutting device for preparing stamp covers. Background Technology

[0002] In burn and plastic surgery, postage stamp skin grafts are a common treatment method. Currently, the preparation of postage stamp skin mainly relies on manual cutting or simple mechanical cutting tools. Manual cutting is extremely inefficient, and the size of the skin grafts is difficult to standardize, which seriously affects the progress of the surgery and the transplantation results. Mechanically prepared postage stamp skin is usually of a fixed size, and different sizes of postage stamp skin are required for different patients with different wound sizes.

[0003] For example, Chinese patent application number 202410446041.7 describes a stamp skin cutter device, which can only cut stamp skins of a fixed size and cannot meet current needs.

[0004] Furthermore, after changing the size of the stamp cover cutting, the simple fixed-position pushing mechanism can no longer push the stamp cover, and may only push one side of the stamp cover, causing the stamp cover to wrinkle or break.

[0005] To address this, we have designed a novel cutting device for preparing stamp covers. This device can adjust the length and width of the stamp covers to be cut and can automatically adjust the position of the push plate that pushes the stamp covers, so that the collected stamp covers can be stably moved to the desired position. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the defects of the existing technology. The present invention proposes a cutting device for preparing stamp covers, which can adjust the length and width of the stamp covers to be cut, and can automatically adjust the position of the push plate that pushes the stamp covers, so that the collected stamp covers can be stably moved to the required position.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a cutting device for preparing stamp covers, comprising:

[0008] The cutting mechanism includes a rectangular structure composed of a first fixed horizontal plate, a second sliding vertical plate, a second sliding horizontal plate, and a first sliding vertical plate. Triangular long cutters are fixedly installed at the bottom of the first fixed horizontal plate, the second sliding vertical plate, the second sliding horizontal plate, and the first sliding vertical plate. The four triangular long cutters cut downwards to obtain the required stamp skin. The mechanism also includes a first driving mechanism that enables the first fixed horizontal plate, the second sliding vertical plate, the second sliding horizontal plate, and the first sliding vertical plate to form rectangular structures of various lengths and widths. The cut stamp skins are collected within the rectangular structure.

[0009] The pushing mechanism pushes out the collected stamp covers, and adjusts itself to push the four corners of the corresponding stamp covers according to their size;

[0010] It also includes a second drive mechanism, which causes the rectangular structure to move downward to a preset position, and then the ejection mechanism to smoothly and stably transplant the collected stamp skins to the required transplant area.

[0011] Furthermore, the first driving mechanism includes a mounting plate, on which a first fixed horizontal plate is fixedly mounted. A second sliding vertical plate is slidably connected to the inner wall of the first fixed horizontal plate near its left end, and to the right side of the first fixed horizontal plate, which is slidably connected to the first sliding vertical plate, which is slidably connected to the first sliding vertical plate, which is provided with an elastic retraction mechanism. A second sliding horizontal plate is slidably connected to the rear side of the first sliding vertical plate, and to the left side of the second sliding horizontal plate, which is slidably connected to the right side of the second sliding vertical plate, which is slidably connected to the left side of the second sliding horizontal plate, which is slidably connected to the right side of the second sliding vertical plate, which is provided with a second electric telescopic device that moves it left and right, and a first electric telescopic device that moves it back and forth, which is provided on the second sliding horizontal plate. The first fixed horizontal plate, the second sliding vertical plate, the second sliding horizontal plate, and the first sliding vertical plate form rectangles of various lengths and widths, and the triangular cutting heads of each of the triangular long cutters are all positioned facing inwards from the rectangle.

[0012] Furthermore, a frame plate is fixedly installed on the bottom outer edge of the mounting plate, the second electric telescopic device and the first electric telescopic device are fixedly installed on the frame plate, the second electric telescopic device is fixedly installed on the frame plate, a third limiting sliding plate is fixedly installed on the telescopic end of the first electric telescopic device, a first limiting sliding groove is opened on the outer side of the second sliding cross plate, and the third limiting sliding plate is slidably connected to the first limiting sliding groove in the left and right directions.

[0013] Furthermore, the elastic contraction mechanism includes a slide rail, which is fixedly installed at the bottom of the mounting plate. The first sliding vertical plate is slidably connected to the slide rail in front and behind. A base plate is fixedly connected to one side of the slide rail. A second elastic element is provided between the base plate and the first sliding vertical plate, so that the first sliding vertical plate tends to move closer to the second sliding horizontal plate.

[0014] Furthermore, the pushing mechanism includes a second fixing block, a first fixing block, a fourth fixing block, and a third fixing block. The second fixing block is fixedly connected to the inner side of the first fixed horizontal plate near the right end. The first fixing block is fixedly connected to the inner side of the first sliding vertical plate near the back. The fourth fixing block is fixedly connected to the inner side of the second sliding horizontal plate near the left end. The third fixing block is fixedly installed on the inner side of the second sliding vertical plate near the front end. Each of the second, first, fourth, and third fixing blocks is provided with an elastic pressing mechanism, which is used to push out the four corners of the stamp skin collected in the second sliding vertical plate, the second sliding horizontal plate, the first sliding vertical plate, and the first fixed horizontal plate when subjected to external force.

[0015] Furthermore, the elastic pressing mechanism includes a sliding column, and the second fixing block, the first fixing block, the fourth fixing block, and the third fixing block are all slidably connected to the sliding column through the second limiting sliding groove on them. A push plate is fixedly installed at the bottom of the sliding column, and a third elastic element is provided between the multiple push plates and the corresponding second fixing block, the first fixing block, the fourth fixing block, and the third fixing block.

[0016] The mounting plate has a frame groove in the middle, and four sliding pillars pass through the frame groove.

[0017] Further, the second driving mechanism includes an upper housing and a lower housing. The bottom of the upper housing is connected to the lower housing, and a top plate is fixedly connected to the top of the upper housing. A first fixed plate and a fixed mounting base are fixedly connected inside the upper housing. A rotating column is rotatably connected between the top plate and the first fixed plate. A threaded rod is rotatably connected between the first fixed plate and the second limiting sliding plate. The end axis of the rotating column is connected to the end axis of the threaded rod. A first limiting sliding plate is threaded to the outer wall of the threaded rod. A first limiting sliding plate and a second limiting sliding plate are slidably connected inside the upper housing. A first elastic element is connected between the first limiting sliding plate and the second limiting sliding plate. A circular groove is opened in the middle of the second limiting sliding plate. The threaded rod passes through the circular groove. At least two first connecting columns are fixedly connected to the bottom of the first limiting sliding plate. The two first connecting columns pass through the circular groove, and a pressure plate is fixedly connected to the bottom of the two first connecting columns. The pressure plate is placed at the bottom of the fixed mounting base. The fixed mounting base can press down multiple sliding columns that change positions.

[0018] Both sides of the inner wall of the upper shell are fixedly connected to limit plates. The second limit sliding plate can press against the limit plate, so that when the second limit sliding plate presses against the limit plate, the four triangular long cutters extend to the farthest position outside the lower shell. When the first limit sliding plate continues to press down, the pressure plate pushes multiple sliding columns and push plates to push the four corners of the collected stamp skin outward.

[0019] A motor is fixedly installed on the top plate, and the power output end of the motor is connected to the rotating column.

[0020] Furthermore, it also includes a controller, which is fixedly installed on the outer wall of the upper housing. The controller is equipped with control buttons and a power supply, and is electrically connected to the first electric telescopic device, the second electric telescopic device, and the motor.

[0021] Furthermore, each of the sliding columns is provided with a main vacuum channel, and the push plate is provided with a number of secondary vacuum channels communicating with the main vacuum channel. A pipe communicating with the main vacuum channel is installed on the sliding column, and an electric valve is installed on the pipe. The pipe passes through the upper housing and the part outside the upper housing is connected to the negative pressure port of the external negative pressure device.

[0022] Furthermore, the controller is electrically connected to the electric valve.

[0023] Compared with the prior art, the beneficial effects of the present invention include:

[0024] The four triangular long cutters can be used to form cutting frames of various lengths and widths, so that stamp covers of various lengths and widths can be prepared and cut according to needs;

[0025] The four push plates can be automatically adjusted according to the size of the cut stamp skin, so that the four push plates are located at the four corners of the corresponding stamp skin, which makes it easier to push the stamp skin out stably and flat, and makes the stamp skin better collected and pushed out.

[0026] The device can first move four triangular long cutters to the outside to cut and collect stamp skins, and then vacuum-adsorb the collected stamp skins, which also makes it easier to stably place them on the graft site later.

[0027] The device is easy to operate and maintain, and has great potential for widespread adoption. Attached Figure Description

[0028] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0029] Figure 1 This shows a structural schematic diagram of the lower and upper housings of the present invention from a first perspective view;

[0030] Figure 2 The diagram shows a second perspective view of the lower and upper housings of the present invention.

[0031] Figure 3 The diagram shows a third perspective view of the lower and upper housings of the present invention.

[0032] Figure 4 This diagram shows a fourth perspective view of the lower and upper housings of the present invention.

[0033] Figure 5 A schematic diagram of the overall structure of the device of the present invention is shown;

[0034] Figure 6 This invention demonstrates Figure 3 An enlarged structural diagram at point A;

[0035] Figure 7 This invention demonstrates Figure 4 An enlarged structural diagram at point B;

[0036] Figure 8 A schematic cross-sectional view of the installation structure of the push plate without vacuum suction according to the present invention is shown;

[0037] Figure 9 A schematic cross-sectional view of the installation structure of the vacuum-applying pusher plate of the present invention is shown;

[0038] Figure 10 A schematic diagram of the triangular long cutter mounting structure of the present invention is shown.

[0039] The following are the labeling elements in the diagram: 1. Top plate; 2. Motor; 3. Rotating column; 4. First fixed plate; 5. Threaded rod; 6. First limiting slide plate; 7. First elastic element; 8. First connecting column; 9. Second limiting sliding plate; 10. Circular groove; 11. Limiting plate; 12. Fixed mounting base; 13. Pressure plate; 14. Sliding column; 15. Frame groove; 16. Mounting plate; 17. Second connecting column; 18. Frame plate; 19. First electric telescopic device; 20. Second electric telescopic device; 21. First sliding vertical plate; 22. Second elastic element; 23. Base plate; 24. Slide rail; 25. Second sliding horizontal plate; 26. Second sliding vertical plate; 27. First fixed horizontal plate; 28. First fixed block; 29. ​​Second fixed block; 30. Third fixed block; 31. Fourth fixed block; 32. Third limiting sliding plate; 33. First limiting slide groove; 34. Push plate; 35. Third elastic element; 36. Vacuum main channel; 37. Pipe; 38. Electric valve; 39. Vacuum sub-channel; 40. Second limiting slide groove; 41. Lower housing; 42. Upper housing; 43. Controller; 44. Triangular long cutter. Detailed Implementation

[0040] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0041] Example 1:

[0042] This embodiment mainly includes an upper housing 42, a lower housing 41, a top plate 1, a motor 2, and a controller 43.

[0043] Key reference Figure 1 and Figure 2 The bottom of the upper housing 42 is connected to the lower housing 41, and both the upper housing 42 and the lower housing 41 are housings. The top of the upper housing 42 is fixedly connected to the top plate 1.

[0044] Key reference Figure 1The inner wall of the upper shell 42 is fixedly connected from top to bottom to a first fixed plate 4 and a fixed mounting base 12. A rotating column 3 is rotatably connected between the top plate 1 and the first fixed plate 4. A threaded rod 5 is rotatably connected between the first fixed plate 4 and the fixed mounting base 12. The upper axis of the threaded rod 5 is fixedly connected to the lower axis of the rotating column 3.

[0045] Key reference Figure 1 A motor 2 is fixedly installed on the top of the top plate 1, and the power output end of the motor 2 is connected to the rotating column 3.

[0046] Key reference Figure 1 The inner wall of the upper housing 42 is connected by a first limiting slide plate 6 and a second limiting slide plate 9 in a series of upper and lower limiting sliding connections from top to bottom. A first elastic element 7 is connected between the first limiting slide plate 6 and the second limiting slide plate 9. The first limiting slide plate 6 and the second limiting slide plate 9 are placed between the first fixed plate 4 and the fixed mounting base 12.

[0047] Key reference Figure 1 The second limiting sliding plate 9 has a circular groove 10 in the middle, and the threaded rod 5 passes through the circular groove 10.

[0048] Key reference Figure 1 The bottom sides of the second limiting sliding plate 9 are fixedly connected with second connecting posts 17, and the bottom of the two second connecting posts 17 are fixedly connected with mounting plate 16. The bottom periphery of mounting plate 16 is fixedly connected with frame plate 18.

[0049] Key reference Figure 3 and Figure 6 The bottom of the mounting plate 16 is fixedly connected to a first fixed horizontal plate 27. The inner wall of the first fixed horizontal plate 27 near the left end is slidably connected to a second sliding vertical plate 26. The right side of the first fixed horizontal plate 27 is slidably connected to a first sliding vertical plate 21. The bottom of the mounting plate 16 is fixedly connected to a slide rail 24. The first sliding vertical plate 21 is slidably connected to the slide rail 24. A bottom plate 23 is fixedly connected to one side of the slide rail 24. A second elastic element 22 is provided between the bottom plate 23 and the first sliding vertical plate 21, so that the first sliding vertical plate 21 tends to move closer to the second sliding horizontal plate 25.

[0050] Key reference Figure 3 and Figure 6 The rear side of the first sliding vertical plate 21 is slidably connected to the second sliding horizontal plate 25, and the left side of the second sliding horizontal plate 25 is slidably connected to the right side of the second sliding vertical plate 26. The second sliding vertical plate 26 is provided with a second electric telescopic device 20 that moves left and right. The second electric telescopic device 20 is fixedly installed on the frame plate 18, and the telescopic end of the second electric telescopic device 20 is connected to the second sliding vertical plate 26.

[0051] Key reference Figure 4 and Figure 7 The second sliding horizontal plate 25 is equipped with a first electric telescopic device 19 that allows it to move back and forth. The first electric telescopic device 19 is fixedly installed on the frame plate 18. The telescopic end of the first electric telescopic device 19 is fixedly connected to a third limiting sliding plate 32. A first transverse limiting groove 33 is opened on the outer side of the second sliding horizontal plate 25. The third limiting sliding plate 32 is slidably connected to the first limiting groove 33 for left and right limiting. The first fixed horizontal plate 27, the second sliding vertical plate 26, the second sliding horizontal plate 25, and the first sliding vertical plate 21 form rectangles of various lengths and widths.

[0052] Key reference Figure 3 , Figure 6 and Figure 10 Triangular long cutters 44 are fixedly installed at the bottom of the first fixed horizontal plate 27, the second sliding vertical plate 26, the second sliding horizontal plate 25, and the first sliding vertical plate 21. The cutting tips of the triangular long cutters 44 are positioned within the rectangle formed by the first fixed horizontal plate 27, the second sliding vertical plate 26, the second sliding horizontal plate 25, and the first sliding vertical plate 21. This allows the four triangular long cutters 44 to cut the graft into stamp skins and collect them between the four triangular long cutters 44, that is, between the first fixed horizontal plate 27, the second sliding vertical plate 26, the second sliding horizontal plate 25, and the first sliding vertical plate 21. Note that after the graft is collected into stamp skins, there are still cuts from the four triangular long cutters 44 around the perimeter. When making stamp skins from grafts again, it is necessary to avoid the remaining cuts.

[0053] Key reference Figure 1 Limiting plates 11 are fixedly connected to both sides of the inner wall of the upper housing 42. When the second limiting sliding plate 9 moves downward, it presses against the top of the limiting plate 11. At this time, the triangular long cutter 44 is placed outside the lower housing 41. When the triangular long cutter 44 is used for rework or when it is necessary to store stamp covers, the triangular long cutter 44 is placed inside the lower housing 41.

[0054] The controller 43 is fixedly installed on the outer wall of the upper housing 42. The controller 43 is equipped with control buttons and a power supply. The controller 43 is electrically connected to the first electric telescopic device 19, the second electric telescopic device 20, and the motor 2. The power supply provides electrical energy, and the controller's control board transmits control signals.

[0055] Example 2: Based on Example 1, an additional technical means is added to facilitate pushing the collected stamp covers to the area where they need to be grafted, and to push the four corners of the stamp covers in real time according to their size to stably push them out, preventing the stamp covers from folding and breaking.

[0056] Key reference Figure 6 and Figure 8The first fixed horizontal plate 27 is fixedly connected to the inner side near the right end of the second fixed block 29. The first sliding vertical plate 21 is fixedly connected to the inner side near the back of the first fixed block 28. The second sliding horizontal plate 25 is fixedly connected to the inner side near the left end of the second fixed block 31. The second sliding vertical plate 26 is fixedly installed to the inner side near the front end of the second fixed block 30. The second fixed block 29, the first fixed block 28, the fourth fixed block 31, and the third fixed block 30 are all slidably connected to the sliding column 14 through the second limiting slide groove 40 on them. The bottom of the sliding column 14 is fixedly installed with the push plate 34. The multiple push plates 34 are all provided with the third elastic element 35 between them and the corresponding second fixed block 29, the first fixed block 28, the fourth fixed block 31, and the third fixed block 30. The multiple push plates 34 are all placed at the four corners inside the rectangle formed by the first fixed horizontal plate 27, the second sliding vertical plate 26, the second sliding horizontal plate 25, and the first sliding vertical plate 21.

[0057] The bottom sides of the first limiting slide plate 6 are fixedly connected to the first connecting posts 8. The two first connecting posts 8 pass through the circular groove 10. The bottom of the two first connecting posts 8 are fixedly connected to the pressure plate 13, which is placed at the bottom of the fixed mounting base 12. The pressure plate 13 can press the top of the four sliding posts 14.

[0058] When the second limiting sliding plate 9 presses down on the limiting plate 11, the four triangular long cutters 44 extend to the farthest position outside the lower housing 41, and when the first limiting sliding plate 6 continues to press down, the pressing plate 13 pushes multiple sliding pillars 14 and push plates 34 to push the four corners of the collected stamp skin outward.

[0059] The other structures of Example 2 are the same as those of Example 1.

[0060] Example 3: Based on Example 2, a technical means is added to facilitate the stable placement of the stamp cover inside the first fixed horizontal plate 27, the second sliding vertical plate 26, the second sliding horizontal plate 25, and the first sliding vertical plate 21.

[0061] Key reference Figure 9 Multiple sliding columns 14 are provided with vacuum main channels 36, and multiple vacuum sub-channels 39 connected to the vacuum main channels 36 are provided in the push plate 34. A pipe 37 connected to the vacuum main channels 36 is installed on the sliding column 14. An electric valve 38 is installed on the pipe 37. The pipe 37 passes through the upper housing 42 and is connected to the negative pressure port of the external negative pressure device at the part outside the upper housing 42.

[0062] The controller 43 is electrically connected to the electric valve 38.

[0063] The other structures of Example 3 are the same as those of Example 2.

[0064] In practice: First, place the skin graft flat on the workbench. Determine the required size of the stamp skin. Then, activate the second electric telescopic device 20 and the first electric telescopic device 19 so that the first fixed horizontal plate 27, the second sliding vertical plate 26, the second sliding horizontal plate 25, and the first sliding vertical plate 21 form a rectangle with the required length and width.

[0065] Using clamps or personnel, the lower housing 41 and upper housing 42 are vertically positioned on top of the graft. Then, pressing the control button on the controller 43 causes the rotating column 3 to rotate a preset number of times, so that the second limiting sliding plate 9 presses against the limiting plate 11, but the pressure plate 13 is not in contact with the sliding column 14. At this time, the second limiting sliding plate 9 drives the second connecting column 17, the mounting plate 16, and the triangular long cutter 44 to move downwards, cutting the graft into a stamp shape. The stamp-shaped graft is then collected between the four triangular long cutters 44, specifically between the first fixed horizontal plate 27, the second sliding vertical plate 26, the second sliding horizontal plate 25, and the first sliding vertical plate 21.

[0066] Then, control the motor 2 to rotate a preset number of times, and the pressure plate 13 presses the sliding column 14 so that the four push plates 34 are close to the stamp skin. At this time, the electric valve 38 is activated so that the four vacuum channels 39 use a preset vacuum suction force to attract the four corners of the stamp skin, so that the stamp skin is stably placed.

[0067] Then move the position where the skin needs to be grafted. At this time, start motor 2 to make the second limit slide 40 move out first, and then make the stamp skin be pushed out by the four push plates 34. When it is pushed to the preset position, close the electric valve 38 and the stamp skin is conveyed to the preset skin grafting position.

[0068] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A cutting device for preparing stamp covers, characterized in that, include: The cutting mechanism includes a rectangular structure composed of a first fixed horizontal plate (27), a second sliding vertical plate (26), a second sliding horizontal plate (25), and a first sliding vertical plate (21). Triangular long cutters (44) are fixedly installed at the bottom of the first fixed horizontal plate (27), the second sliding vertical plate (26), the second sliding horizontal plate (25), and the first sliding vertical plate (21). The four triangular long cutters (44) cut downwards to obtain the required stamp skin. The mechanism also includes a first driving mechanism that makes the first fixed horizontal plate (27), the second sliding vertical plate (26), the second sliding horizontal plate (25), and the first sliding vertical plate (21) form rectangular structures of various lengths and widths. The cut stamp skins are collected in the rectangular structure. The pushing mechanism pushes out the collected stamp covers, and adjusts itself to push the four corners of the corresponding stamp covers according to their size; It also includes a second drive mechanism, which causes the rectangular structure to move down to a preset position and then the push-out mechanism to flatly and stably transplant the collected stamp skins to the required transplant area. The pushing mechanism includes a second fixing block (29), a first fixing block (28), a fourth fixing block (31), and a third fixing block (30). The second fixing block (29) is fixedly connected to the inner side of the first fixed horizontal plate (27) near the right end. The first fixing block (28) is fixedly connected to the inner side of the first sliding vertical plate (21) near the back. The fourth fixing block (31) is fixedly connected to the inner side of the second sliding horizontal plate (25) near the left end. The third fixing block (30) is fixedly installed on the inner side of the second sliding vertical plate (26) near the front end. The second fixing block (29), the first fixing block (28), the fourth fixing block (31), and the third fixing block (30) are all provided with elastic pressing mechanisms, which are used to push out the four corners of the stamp skin collected in the second sliding vertical plate (26), the second sliding horizontal plate (25), the first sliding vertical plate (21), and the first fixed horizontal plate (27) when subjected to external force. The elastic pressing mechanism includes a sliding column (14). The second fixing block (29), the first fixing block (28), the fourth fixing block (31), and the third fixing block (30) are all slidably connected to the sliding column (14) through the second limiting sliding groove (40) on them. The bottom of the sliding column (14) is fixedly installed with a push plate (34). A third elastic element (35) is provided between the multiple push plates (34) and the corresponding second fixing block (29), first fixing block (28), fourth fixing block (31), and third fixing block (30). The first driving mechanism includes a mounting plate (16). A frame groove (15) is opened in the middle of the mounting plate (16). The four sliding columns (14) pass through the frame groove (15). The second driving mechanism includes an upper housing (42) and a lower housing (41). The bottom of the upper housing (42) is connected to the lower housing (41). The top of the upper housing (42) is fixedly connected to a top plate (1). The upper housing (42) is fixedly connected to a first fixing plate (4) and a fixed mounting base (12). A rotating column (3) is rotatably connected between the top plate (1) and the first fixing plate (4). A threaded rod (5) is rotatably connected between the first fixing plate (4) and the second limiting sliding plate (9). The end axis of the rotating column (3) is connected to the end axis of the threaded rod (5). The outer wall of the threaded rod (5) is threadedly connected to a first limiting sliding plate (6). The upper housing (42) is fixedly connected to the lower housing (41). The upper and lower limit sliding connection includes a first limit sliding plate (6) and a second limit sliding plate (9). A first elastic element (7) is connected between the first limit sliding plate (6) and the second limit sliding plate (9). A circular groove (10) is opened in the middle of the second limit sliding plate (9). The threaded rod (5) passes through the circular groove (10). At least two first connecting posts (8) are fixedly connected to the bottom of the first limit sliding plate (6). The two first connecting posts (8) pass through the circular groove (10), and a pressure plate (13) is fixedly connected to the bottom of the two first connecting posts (8). The pressure plate (13) is placed at the bottom of the fixed mounting base (12). The fixed mounting base (12) can press down multiple sliding posts (14) that change positions. Limiting plates (11) are fixedly connected to both sides of the inner wall of the upper shell (42). The second limiting sliding plate (9) can press against the limiting plate (11), so that when the second limiting sliding plate (9) presses against the limiting plate (11), the four triangular long cutters (44) extend to the farthest position outside the lower shell (41). When the first limiting sliding plate (6) continues to press down, the pressure plate (13) pushes multiple sliding columns (14) and push plate (34) to push the four corners of the collected stamp skin outward. A motor (2) is fixedly installed on the top plate (1), and the power output end of the motor (2) is connected to the rotating column (3).

2. The cutting device for preparing stamp covers according to claim 1, characterized in that, A first fixed horizontal plate (27) is fixedly installed on the mounting plate (16). A second sliding vertical plate (26) is slidably connected to the inner wall of the first fixed horizontal plate (27) near the left end. A first sliding vertical plate (21) is slidably connected to the right side of the first fixed horizontal plate (27). An elastic retraction mechanism is provided on the first sliding vertical plate (21). A second sliding horizontal plate (25) is slidably connected to the rear side of the first sliding vertical plate (21). A second sliding horizontal plate (26) is slidably connected to the right side of the second sliding horizontal plate (25) at the left side. A second electric telescopic device (20) is provided on the second sliding vertical plate (26) to move it left and right. A first electric telescopic device (19) is provided on the second sliding horizontal plate (25) to move it back and forth. The first fixed horizontal plate (27), the second sliding vertical plate (26), the second sliding horizontal plate (25), and the first sliding vertical plate (21) form rectangles of various lengths and widths. The triangular cutting heads of each of the triangular long cutters (44) are all set towards the inside of the rectangle.

3. The cutting device for preparing stamp covers according to claim 2, characterized in that, A frame plate (18) is fixedly installed on the bottom outer edge of the mounting plate (16). The second electric telescopic device (20) and the first electric telescopic device (19) are fixedly installed on the frame plate (18). The second electric telescopic device (20) is fixedly installed on the frame plate (18). A third limiting sliding plate (32) is fixedly installed on the telescopic end of the first electric telescopic device (19). A first limiting sliding groove (33) is opened on the outer side of the second sliding cross plate (25). The third limiting sliding plate (32) is slidably connected to the first limiting sliding groove (33) in the left and right limiting positions.

4. The cutting device for preparing stamp covers according to claim 3, characterized in that, The elastic retraction mechanism includes a slide rail (24), which is fixedly installed at the bottom of the mounting plate (16). The first sliding vertical plate (21) is slidably connected to the slide rail (24) with front and rear limits. A base plate (23) is fixedly connected to one side of the slide rail (24). A second elastic element (22) is provided between the base plate (23) and the first sliding vertical plate (21), so that the first sliding vertical plate (21) tends to move closer to the second sliding horizontal plate (25).

5. The cutting device for preparing stamp covers according to claim 4, characterized in that, It also includes a controller (43), which is fixedly installed on the outer wall of the upper housing (42). The controller (43) is equipped with control buttons and a power supply. The controller (43) is electrically connected to the first electric telescopic device (19), the second electric telescopic device (20), and the motor (2).

6. The cutting device for preparing stamp covers according to claim 5, characterized in that, Vacuum main channels (36) are provided on multiple sliding columns (14), and multiple vacuum sub-channels (39) communicating with the vacuum main channels (36) are provided in the push plate (34). A pipe (37) communicating with the vacuum main channels (36) is installed on the sliding column (14), and an electric valve (38) is installed on the pipe (37). The pipe (37) passes through the upper housing (42), and the part of the pipe (37) placed outside the upper housing (42) is connected to the negative pressure port of the external negative pressure device.

7. The cutting device for preparing stamp covers according to claim 6, characterized in that, The controller (43) is electrically connected to the electric valve (38).

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