Cutting device for preparing stamp skin

Abstract

The invention relates to the technical field of cutter devices, in particular to a cutter device for preparing stamp skins, which comprises a cutter mechanism comprising a first fixed transverse plate, a second sliding vertical plate, a second sliding transverse plate and a rectangular structure formed by the first sliding vertical plate, the bottoms of the first fixed transverse plate, the second sliding vertical plate, the second sliding transverse plate and the first sliding vertical plate are each fixedly provided with a triangular long cutter, and the four triangular long cutters conduct downward cutting to obtain required stamp skins. The first driving mechanism enables the first fixed transverse plate, the second sliding vertical plate, the second sliding transverse plate and the first sliding vertical plate to form rectangular structures of various lengths and widths, and cut stamp skins are collected in the rectangular structures; and the pushing mechanism pushes the collected stamp skins out, and the pushing mechanism pushes the four corners of the corresponding stamp skins in a self-adjusting mode. According to the device, the length and width of the cut stamp skin can be adjusted, and the position of the push plate for pushing the stamp skin can be automatically adjusted, so that the collected stamp skin is stably moved to a required position.

Description

Technical Field

[0001] The present invention relates to the technical field of cutter devices, and in particular to a cutter device for preparing postage stamp skin. Background Art

[0002] In surgical operations such as burns and plastic surgery, postage stamp skin grafting is a commonly used treatment method. Currently, preparing postage stamp skin mainly relies on manual cutting or simple mechanical cutting tools. Manual cutting has extremely low efficiency, and it is difficult to unify the size of the skin pieces, seriously affecting the progress of the operation and the grafting effect. And mechanically preparing postage stamp skin usually has a fixed size. For different patients with different wound sizes, postage stamp skin of different sizes is required.

[0003] For example, in Chinese Patent Application No. 202410446041.7, a postage stamp skin cutter device can only cut postage stamp skin of a fixed size and cannot meet the existing requirements.

[0004] Moreover, after changing the cutting size of the postage stamp skin, a simple fixedly arranged pushing mechanism can no longer push the postage stamp skin, and may only push one side of the postage stamp skin, causing the postage stamp skin to wrinkle or break.

[0005] Therefore, we designed a new type of cutter device for preparing postage stamp skin, which can adjust the length and width of the cut postage stamp skin, and can automatically adjust the position of the push plate that pushes the postage stamp skin, so that the collected postage stamp skin can be stably moved to the required position. Summary of the Invention

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

[0007] To solve the above technical problems, the technical solution adopted by the present invention is: A cutter device for preparing postage stamp skin, comprising:

[0008] A cutting knife mechanism, including 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 cutting knives are fixedly installed at the bottoms 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 cutting knives cut downward to obtain the required postage stamp skin. It 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 postage stamp skin is collected within the rectangular structure;

[0009] A pushing mechanism that pushes out the collected postage stamp skin and self-adjusts to push the four corners of the corresponding postage stamp skin according to the size of the postage stamp skin;

[0010] It further includes a second driving mechanism. After the rectangular structure moves downward to a preset position, the pushing mechanism will transplant the collected stamp skins smoothly and stably to the required transplantation area.

[0011] Furthermore, the first driving mechanism includes a mounting plate. A first fixed horizontal plate is fixedly installed on the mounting plate. A second sliding vertical plate is horizontally and slidably connected to the inner wall near the left end of the first fixed horizontal plate. A first sliding vertical plate is horizontally and slidably connected to the right side of the first fixed horizontal plate. An elastic contraction mechanism is arranged on the first sliding vertical plate. A second sliding horizontal plate is horizontally and slidably connected to the rear side of the first sliding vertical plate. The left side of the second sliding horizontal plate is horizontally and slidably connected to the right side of the second sliding vertical plate. A second electric telescopic device for moving it left and right is arranged on the second sliding vertical plate. A first electric telescopic device for moving it back and forth is arranged 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. The triangular cutting heads of each triangular long cutter are all arranged towards the inside of the rectangle.

[0012] Furthermore, a frame plate is fixedly installed on the outer edge of the bottom 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 limit sliding plate is fixedly installed at the telescopic end of the first electric telescopic device. A first limit sliding groove is opened on the outer side of the second sliding horizontal plate. The third limit sliding plate is horizontally and slidably connected in the first limit sliding groove.

[0013] Furthermore, the elastic contraction mechanism includes a slide rail. The slide rail is fixedly installed at the bottom of the mounting plate. The first sliding vertical plate is horizontally and slidably connected in the slide rail. One side of the slide rail is fixedly connected to a bottom plate. A second elastic member is arranged between the bottom plate and the first sliding vertical plate, so that the first sliding vertical plate has a tendency to approach the second sliding horizontal plate.

[0014] Furthermore, the pushing mechanism includes a second fixed block, a first fixed block, a fourth fixed block, and a third fixed block. A second fixed block is fixedly connected to the inner side near the right end of the first fixed horizontal plate. A first fixed block is fixedly connected to the inner side near the back of the first sliding vertical plate. A fourth fixed block is fixedly connected to the inner side near the left end of the second sliding horizontal plate. A third fixed block is fixedly installed on the inner side near the front end of the second sliding vertical plate. Elastic pressing mechanisms are arranged on the second fixed block, the first fixed block, the fourth fixed block, and the third fixed block, which are used to push out the four corners of the stamp skins 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 an external force.

[0015] Further, the elastic pressing mechanism includes sliding columns. The second fixed block, the first fixed block, the fourth fixed block, and the third fixed block are all connected to the sliding columns in a vertically limited sliding manner through the second limiting sliding grooves on them. A push plate is fixedly installed at the bottom of the sliding columns. Third elastic members are provided between the plurality of push plates and the corresponding second fixed block, first fixed block, fourth fixed block, and third fixed block.

[0016] A frame groove is formed in the middle of the mounting plate, and the four sliding columns penetrate 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. The top of the upper housing is fixedly connected to a top plate. A first fixing plate and a fixed mounting seat are fixedly connected inside the upper housing. A rotating column is rotatably connected between the top plate and the first fixing plate in a limited manner. A threaded rod is rotatably connected between the first fixing plate and the second limiting sliding plate in a limited manner. The end axis of the rotating column is connected to one end axis of the threaded rod. A first limiting sliding plate is threadedly connected to the outer wall of the threaded rod. The first limiting sliding plate and the second limiting sliding plate are slidably connected up and down inside the upper housing. A first elastic member is connected between the first limiting sliding plate and the second limiting sliding plate. A circular groove is formed in the middle of the second limiting sliding plate, and 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 pressing plate is fixedly connected to the bottoms of the two first connecting columns together. The pressing plate is placed at the bottom of the fixed mounting seat, and the fixed mounting seat can press a plurality of sliding columns with changed positions.

[0018] Limiting plates are fixedly connected to both sides of the inner wall of the upper housing. The second limiting sliding plate can be pressed against the limiting plates, so that when the second limiting sliding plate presses the limiting plates, the four triangular long cutting knives extend to the farthest position outside the lower housing. When the first limiting sliding plate continues to press down, the pressing plate pushes the plurality of sliding columns and push plates to push the four corners of the collected stamp skins outwards.

[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] Further, a controller is further included. The controller is fixedly installed on the outer wall of the upper housing. Control buttons and a power supply are arranged on the controller. The controller is electrically connected to the first electric telescopic device, the second electric telescopic device, and the motor.

[0021] Further, a vacuum main channel is formed on each of the plurality of sliding columns. A plurality of vacuum sub-channels communicating with the vacuum main channel are formed in the push plate. A pipeline communicating with the vacuum main channel is installed on the sliding column. An electric valve is installed on the pipeline. The pipeline passes through the upper housing, and the part outside the upper housing is connected to the negative pressure port of an external negative pressure device.

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

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

[0024] It can make four triangular long cutting knives form cutting frames with various lengths and widths, so that stamp skins with various lengths and widths can be prepared by cutting according to requirements;

[0025] The positions of 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 is convenient for stably and smoothly pushing out the stamp skin, and makes the stamp skin better collected and pushed out;

[0026] The device can first move the four triangular long cutting knives to the outside to cut and collect the stamp skin, vacuum adsorb it after collecting the stamp skin, and is also convenient for stably placing it at the skin grafting site subsequently;

[0027] The device is easy to operate and maintain, and has good promotion effectiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The disclosure of the present invention will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0029] Figure 1 Shows a schematic structural view of the first perspective of the lower housing and the upper housing of the present invention;

[0030] Figure 2 Shows a schematic structural view of the second perspective of the lower housing and the upper housing of the present invention;

[0031] Figure 3 Shows a schematic structural view of the third perspective of the lower housing and the upper housing of the present invention;

[0032] Figure 4 Shows a schematic structural view of the fourth perspective of the lower housing and the upper housing of the present invention;

[0033] Figure 5 Shows a schematic structural view of the overall structure of the device of the present invention;

[0034] Figure 6 Shows the Figure 3 enlarged schematic structural view of part A of the present invention;

[0035] Figure 7 Shows the Figure 4 enlarged schematic structural view of part B of the present invention;

[0036] Figure 8 Shows the installation sectional structure schematic diagram of the push plate without vacuum suction of the present invention;

[0037] Figure 9 Shows the installation sectional structure schematic diagram of the push plate with vacuum suction of the present invention;

[0038] Figure 10 Shows the installation structure schematic diagram of the triangular long cutting knife of the present invention.

[0039] Reference numerals in the figure: 1, top plate; 2, motor; 3, rotating column; 4, first fixing plate; 5, threaded rod; 6, first limiting sliding plate; 7, first elastic member; 8, first connecting column; 9, second limiting sliding plate; 10, circular groove; 11, limiting plate; 12, fixed mounting seat; 13, pressing 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 member; 23, bottom plate; 24, slide rail; 25, second sliding transverse plate; 26, second sliding vertical plate; 27, first fixed transverse plate; 28, first fixing block; 29, second fixing block; 30, third fixing block; 31, fourth fixing block; 32, third limiting sliding plate; 33, first limiting chute; 34, push plate; 35, third elastic member; 36, main vacuum channel; 37, pipeline; 38, electric valve; 39, vacuum sub-channel; 40, second limiting chute; 41, lower housing; 42, upper housing; 43, controller; 44, triangular long cutting knife. Detailed implementation manners

[0040] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, those of ordinary skill in the art can propose various structural ways and implementation manners that can be mutually replaced. Therefore, the following detailed implementation manners and the accompanying drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as all of the present invention or as a limitation or restriction on the technical solution of the present invention.

[0041] Embodiment 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] With key reference to Figure 1 and Figure 2 , the bottom of the upper housing 42 is connected to the lower housing 41, and both the lower housing 41 and the lower housing 41 are housings. The top of the upper housing 42 is fixedly connected to the top plate 1.

[0044] With key reference to Figure 1, on the inner wall of the upper housing 42, a first fixing plate 4 and a fixed mounting seat 12 are fixedly connected in sequence from top to bottom. A rotating column 3 is rotationally connected with limited displacement between the top plate 1 and the first fixing plate 4, and a threaded rod 5 is rotationally connected with limited displacement between the first fixing plate 4 and the fixed mounting seat 12. The upper part of the axis of the threaded rod 5 is fixedly connected with the lower part of the 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 , on the inner wall of the upper housing 42, a first limiting sliding plate 6 and a second limiting sliding plate 9 are slidably connected with limited displacement from top to bottom in sequence. A first elastic member 7 is connected between the first limiting sliding plate 6 and the second limiting sliding plate 9, and the first limiting sliding plate 6 and the second limiting sliding plate 9 are arranged between the first fixing plate 4 and the fixed mounting seat 12.

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

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

[0049] Key reference Figure 3 and Figure 6 , a first fixed cross plate 27 is fixedly connected to the bottom of the mounting plate 16. A second sliding vertical plate 26 is slidably connected with limited displacement left and right on the inner wall near the left end of the first fixed cross plate 27. A first sliding vertical plate 21 is slidably connected with limited displacement front and back on the right side of the first fixed cross plate 27. A slide rail 24 is fixedly connected to the bottom of the mounting plate 16. The first sliding vertical plate 21 is slidably connected with limited displacement front and back in the slide rail 24. A bottom plate 23 is fixedly connected to one side of the slide rail 24. A second elastic member 22 is arranged between the bottom plate 23 and the first sliding vertical plate 21, so that the first sliding vertical plate 21 has a tendency to move closer to the second sliding cross plate 25.

[0050] Key reference Figure 3 and Figure 6 , a second sliding cross plate 25 is slidably connected with limited displacement left and right at the rear side of the first sliding vertical plate 21. The left side of the second sliding cross plate 25 is slidably connected with limited displacement front and back on the right side of the second sliding vertical plate 26. A second electric telescopic device 20 for making it move left and right is arranged on the second sliding vertical plate 26. 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 On the second sliding cross plate 25, there is a first electric telescopic device 19 for moving it 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 with a third limit sliding plate 32. A horizontal first limit sliding groove 33 is opened on the outside of the second sliding cross plate 25. The third limit sliding plate 32 is horizontally limit slidably connected in the first limit sliding groove 33. The first fixed cross plate 27, the second sliding vertical plate 26, the second sliding cross 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 At the bottoms of the first fixed cross plate 27, the second sliding vertical plate 26, the second sliding cross plate 25, and the first sliding vertical plate 21, there are fixedly installed triangular long cutting knives 44. The cutting tips of the triangular long cutting knives 44 are all placed inside the rectangle formed by the first fixed cross plate 27, the second sliding vertical plate 26, the second sliding cross plate 25, and the first sliding vertical plate 21. So that the four triangular long cutting knives 44 can cut the skin graft into postage stamp skin and collect it between the four triangular long cutting knives 44, that is, between the first fixed cross plate 27, the second sliding vertical plate 26, the second sliding cross plate 25, and the first sliding vertical plate 21. It should be noted that at this time, after the skin graft is collected into postage stamp skin, there are still cut edges cut by the four triangular long cutting knives 44 around it. The next time when making postage stamp skin from the skin graft, the remaining incisions need to be avoided.

[0053] Key reference Figure 1 On both sides of the inner wall of the upper shell 42, there are fixedly connected limit plates 11. When the second limit sliding plate 9 moves downward, it presses on the top of the limit plate 11. At this time, the triangular long cutting knife 44 is placed outside the lower shell 41. When the triangular long cutting knife 44 is not working or when it is necessary to store the postage stamp skin, the triangular long cutting knife 44 is placed inside the lower shell 41.

[0054] The controller 43 is fixedly installed on the outer wall of the upper shell 42. There are control buttons and a power supply on the controller 43. 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 supplies electric energy, and the control board of the controller transmits control signals.

[0055] Embodiment 2: On the basis of Embodiment 1, technical means are added to facilitate pushing the collected postage stamp skin to the place where skin grafting is needed, and to stably push out the postage stamp skin by pushing the four corners of the corresponding postage stamp skin according to the size of the postage stamp skin in real time, preventing the postage stamp skin from folding and breaking.

[0056] Key reference Figure 6 and Figure 8, on the inner side near the right end of the first fixed horizontal plate 27, a second fixed block 29 is fixedly connected. On the inner side near the back of the first sliding vertical plate 21, a first fixed block 28 is fixedly connected. On the inner side near the left end of the second sliding horizontal plate 25, a fourth fixed block 31 is fixedly connected. On the inner side near the front end of the second sliding vertical plate 26, a third fixed block 30 is fixedly installed. The second fixed block 29, the first fixed block 28, the fourth fixed block 31, and the third fixed block 30 are all connected to a sliding column 14 through a second limit sliding groove 40 on them for up and down limit sliding connection. The bottom of the sliding column 14 is fixedly installed with a push plate 34. Between the multiple push plates 34 and the corresponding second fixed block 29, first fixed block 28, fourth fixed block 31, and third fixed block 30, a third elastic member 35 is provided. The multiple push plates 34 are all located 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] On both sides of the bottom of the first limit sliding plate 6, a first connecting column 8 is fixedly connected. The two first connecting columns 8 penetrate through the circular groove 10, and the bottoms of the two first connecting columns 8 are commonly fixedly connected to a pressing plate 13. The pressing plate 13 is placed at the bottom of the fixed mounting seat 12. The pressing plate 13 can press the tops of the four sliding columns 14.

[0058] When the second limit sliding plate 9 presses and limits the limiting plate 11, the four triangular long cutting knives 44 extend to the farthest position outside the lower housing 41. When the first limit sliding plate 6 continues to press downwards, the pressing plate 13 pushes the multiple sliding columns 14 and push plates 34 to push the four corners of the collected stamp skins outwards.

[0059] The other structures of the second embodiment are the same as those of the first embodiment.

[0060] Embodiment Three: On the basis of the second embodiment, technical means are added to facilitate the stable placement of the stamp skins 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] Focus on reference Figure 9 , multiple vacuum main channels 36 are opened on the multiple sliding columns 14. Multiple vacuum sub-channels 39 communicating with the vacuum main channels 36 are opened in the push plate 34. A pipeline 37 communicating with the vacuum main channel 36 is installed on the sliding column 14. An electric valve 38 is installed on the pipeline 37. The pipeline 37 passes through the upper housing 42, and the part outside the upper housing 42 is connected to the negative pressure port of an external negative pressure device.

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

[0063] The other structures of the third embodiment are the same as those of the second embodiment.

[0064] In specific implementation: First, place the skin graft flat on the workbench. First, determine the size of the postage stamp skin required, and start the second electric telescopic device 20 and the first electric telescopic device 19 so that the first fixed cross plate 27, the second sliding vertical plate 26, the second sliding cross plate 25, and the first sliding vertical plate 21 form a rectangle with the required length and width.

[0065] Place the lower housing 41 and the upper housing 42 vertically on top of the skin graft through a fixture or by hand. Then press the control button on the controller 43 to make the rotating column 3 rotate a preset number of turns, so that at this time the second limit sliding plate 9 presses on the limit plate 11, but the pressing plate 13 does not contact the sliding column 14. At this time, the second limit sliding plate 9 drives the second connecting column 17, the mounting plate 16, and the triangular long cutter 44 to move downward to cut the skin graft into a postage stamp shape. At this time, the postage stamp skin is collected between the four triangular long cutters 44, that is, between the first fixed cross plate 27, the second sliding vertical plate 26, the second sliding cross plate 25, and the first sliding vertical plate 21.

[0066] Then control the motor 2 to rotate a preset number of turns. The pressing plate 13 presses the sliding column 14 so that the four push plates 34 approach the postage stamp skin. At this time, start the electric valve 38 so that the four vacuum split channels 39 adsorb the four corners of the postage stamp skin with a preset vacuum suction force to stably place the postage stamp skin.

[0067] Then move to the position where skin grafting is required. At this time, start the motor 2 so that the second limit sliding groove 40 first moves out, and then the postage stamp skin is pushed out by the four push plates 34. When it is pushed to the preset position, at this time, close the electric valve 38, and the postage stamp skin is transmitted to the preset skin grafting position.

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

Claims

1. A cutter device for preparing stamp skins, characterized in that, Including: A cutting knife mechanism, including 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 cutting knives (44) are fixedly installed at the bottoms 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 downward cutting of the four triangular long cutting knives (44) obtains the required stamp leather. It also includes a first driving mechanism that enables 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) to form rectangular structures with various lengths and widths. The cut stamp leather is collected inside the rectangular structure. A pushing mechanism that pushes out the collected stamp leather and, according to the size of the stamp leather, self-adjusts to push the four corners of the corresponding stamp leather. It also includes a second driving mechanism that enables the rectangular structure to move downward to a preset position, and then the pushing mechanism smoothly and stably transplants the collected stamp leather to the required transplantation area.

2. The cutter device for preparing stamp skins according to claim 1, wherein, The first driving mechanism includes a mounting plate (16). The first fixed horizontal plate (27) is fixedly installed on the mounting plate (16). The inner wall of the first fixed horizontal plate (27) near the left end is connected with the second sliding vertical plate (26) in a left-right limiting sliding manner. The right side of the first fixed horizontal plate (27) is connected with the first sliding vertical plate (21) in a front-back limiting sliding manner. An elastic contraction mechanism is arranged on the first sliding vertical plate (21). The rear side of the first sliding vertical plate (21) is connected with the second sliding horizontal plate (25) in a left-right limiting sliding manner. The left side of the second sliding horizontal plate (25) is connected with the right side of the second sliding vertical plate (26) in a front-back limiting sliding manner. A second electric telescopic device (20) for making it move left and right is arranged on the second sliding vertical plate (26). A first electric telescopic device (19) for making it move front and back is arranged on the second sliding horizontal plate (25). 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 various lengths and widths. The triangular cutting heads of each of the triangular long cutting knives (44) are arranged towards the inside of the rectangle.

3. The cutting device for preparing stamp leather according to claim 2, wherein A frame plate (18) is fixedly installed at the outer edge of the bottom 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). The telescopic end of the first electric telescopic device (19) is fixedly installed with a third limiting sliding plate (32). A first limiting sliding groove (33) is opened on the outer side of the second sliding horizontal plate (25). The third limiting sliding plate (32) is connected with the first limiting sliding groove (33) in a left-right limiting sliding manner.

4. A cutter device for preparing stamp skins according to claim 3, characterized in that, The elastic contraction mechanism includes a slide rail (24) fixedly installed at the bottom of the mounting plate (16). The first sliding vertical plate (21) is horizontally limited and slidably connected within the slide rail (24). A bottom plate (23) is fixedly connected to one side of the slide rail (24). A second elastic member (22) is provided between the bottom plate (23) and the first sliding vertical plate (21), such that the first sliding vertical plate (21) has a tendency to approach the second sliding horizontal plate (25).

5. The cutter device for preparing stamp skins according to claim 4, characterized in that, 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 near the right end of the first fixing horizontal plate (27). The first fixing block (28) is fixedly connected to the inner side near the back of the first sliding vertical plate (21). The fourth fixing block (31) is fixedly connected to the inner side near the left end of the second sliding horizontal plate (25). The third fixing block (30) is fixedly installed on the inner side near the front end of the second sliding vertical plate (26). Elastic pressing mechanisms are provided on the second fixing block (29), the first fixing block (28), the fourth fixing block (31), and the third fixing block (30) for pushing out the four corners of the stamp skin collected within the second sliding vertical plate (26), the second sliding horizontal plate (25), the first sliding vertical plate (21), and the first fixing horizontal plate (27) when subjected to an external force.

6. The cutter device for preparing stamp skins according to claim 5, characterized in that, The elastic pressing mechanism includes sliding columns (14). The second fixing block (29), the first fixing block (28), the fourth fixing block (31), and the third fixing block (30) are each vertically limited and slidably connected to the sliding columns (14) through second limiting chutes (40) thereon. A push plate (34) is fixedly installed at the bottom of the sliding columns (14). Third elastic members (35) are provided between multiple push plates (34) and the corresponding second fixing block (29), first fixing block (28), fourth fixing block (31), and third fixing block (30). A frame groove (15) is formed in the middle of the mounting plate (16). Four sliding columns (14) penetrate through the frame groove (15).

7. The cutting device for preparing stamp skins according to claim 6, wherein, 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). A first fixing plate (4) and a fixed mounting seat (12) are fixedly connected inside the upper housing (42). A rotating column (3) is rotationally connected between the top plate (1) and the first fixing plate (4) with limited movement. A threaded rod (5) is rotationally connected between the first fixing plate (4) and a second limit sliding plate (9) with limited movement. The end center of the rotating column (3) is connected to the end center of one end of the threaded rod (5). The outer wall of the threaded rod (5) is threadedly connected to a first limit sliding plate (6). The first limit sliding plate (6) and the second limit sliding plate (9) are vertically slidably connected inside the upper housing (42). A first elastic member (7) is connected between the first limit sliding plate (6) and the second limit sliding plate (9). A circular groove (10) is formed 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 columns (8) are fixedly connected to the bottom of the first limit sliding plate (6). The two first connecting columns (8) pass through the circular groove (10), and the bottoms of the two first connecting columns (8) are commonly fixedly connected to a pressing plate (13). The pressing plate (13) is placed at the bottom of the fixed mounting seat (12), and the fixed mounting seat (12) can press a plurality of sliding columns (14) with changed positions; Limit plates (11) are fixedly connected to both sides of the inner wall of the upper housing (42). The second limit sliding plate (9) can be pressed against the limit plates (11), so that when the second limit sliding plate (9) presses the limit plates (11), the four triangular long cutting blades (44) extend to the farthest position outside the lower housing (41). When the first limit sliding plate (6) continues to press downwards, the pressing plate (13) pushes a plurality of sliding columns (14) and a push plate (34) to push the four corners of the collected stamp skins outwards; A motor (2) is fixedly installed on the top plate (1). The power output end of the motor (2) is connected to the rotating column (3).

8. A cutter device for preparing stamp skins according to claim 7, characterized in that, It further includes a controller (43). The controller (43) is fixedly installed on the outer wall of the upper housing (42). Control buttons and a power supply are arranged on the controller (43). The controller (43) is electrically connected to a first electric telescopic device (19), a second electric telescopic device (20), and the motor (2).

9. The cutter device for preparing stamp skins according to claim 8, characterized in that, Vacuum main channels (36) are formed in a plurality of the sliding columns (14). A plurality of vacuum sub-channels (39) communicated with the vacuum main channels (36) are formed in the push plate (34). A pipe (37) communicated with the vacuum main channel (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 the part outside the upper housing (42) is connected to the negative pressure port of an external negative pressure device.

10. A cutter device for preparing stamp skins according to claim 9, characterized in that, The controller (43) is electrically connected to the electric valve (38).

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