Punching machine for schoolbag production and using method
By designing a punch for schoolbag production, using a lower slide plate and a spring clamped leather, combined with a hydraulic cylinder and a cutting mold to achieve accurate cutting and automatic removal, the problem of displacement and removal difficulties in the leather cutting process is solved, and the cutting quality and production efficiency are improved.
Patent Information
- Application Number
- CN202510251288.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2025-04-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the leather cutting process, the leather cannot be fixed, resulting in displacement and irregular cutting edges, affecting the accuracy of subsequent sewing and the quality of the finished product of the schoolbag. At the same time, the finished leather in the mold is difficult to remove, affecting production efficiency.
A punch press for school bag production is designed, including a feeding groove and fixing assembly. The leather is clamped through the fitting of the slide plate and the spring to prevent displacement, and the leather is accurately cut and automatic removal through the fitting of the hydraulic cylinder and the cutting mold.
Effectively prevent the leather from displaced during the cutting process, ensure the neat cutting edges, improve the accuracy of subsequent sewing and the quality of the finished product of the schoolbag. At the same time, the cut leather in the leather mold is automatically removed to improve production efficiency.
Smart Images

Figure CN119871601A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of fireproof glass, in particular to a punching machine for producing school bags and a use method thereof. Background Art
[0002] Schoolbags are key equipment for students' daily study and travel. Most common schoolbags are made of leather. Schoolbags made of high-quality leather have a warm and delicate touch and superior texture. They not only have a certain degree of waterproof performance, which can protect the babies in the schoolbag from wind and rain in light rain, but also have excellent wear resistance, can withstand daily bumps, friction and drag, and have a long service life. Moreover, leather schoolbags will exude a unique charm over time, becoming a classic item that accompanies students' growth. However, when mass-producing schoolbags, a large number of leather sheets of the same shape and size are required for sewing the surface of the schoolbags.
[0003] In common leather cutting, most of the leather is cut by the device body, and the leather can be cut in batches. However, when the common device body is cutting, the leather cannot be fixed, which causes the leather to shift during the cutting process, making the cutting edge uneven, affecting the accuracy of subsequent sewing, and reducing the quality of the finished school bag. Secondly, when the device body is extruded to cut the leather, the mold is placed on the punching bed and then the mold is extruded. The leather after the mold is extruded will be stuck in the mold, and the leather extruded and cut in the mold needs to be taken out manually, which is cumbersome. Summary of the invention
[0004] The present invention provides a punching machine for producing school bags and a method for using the punching machine, which has the advantages of being able to fix the leather during cutting and taking out the leather after cutting in a mold during cutting, so as to solve the problems of being unable to fix the leather during cutting and being difficult to take out the leather after cutting in a mold during cutting.
[0005] In order to achieve the purpose of being unable to fix the leather when cutting it and making it difficult to take out the leather after cutting in the mold when cutting it, the present invention provides the following technical solution: a punching machine for schoolbag production and a method of using it, comprising a device body, a material discharge groove is opened in the middle of the front side of the device body, and a fixing component is arranged inside the material discharge groove,
[0006] The fixed component includes an output groove, output grooves are opened on both sides of the inner cavity of the discharge groove, compression grooves are opened in the middle of both sides of the inner wall of the discharge groove, and the compression grooves and the output grooves are communicated with each other, two connecting rods are fixedly connected to the top of the inner cavity of one compression groove, springs are fixedly connected on both sides of the top of the compression groove, and a set of springs is arranged on the outer wall of the connecting rod, the bottom of the spring one passes through and is slidably connected with a lower slide plate, the top of the lower slide plate is fixedly connected to the spring one, a resisting inclined groove is opened in the middle of the bottom of the lower slide plate, a pressing plate is fixedly connected to one side of the top of the lower slide plate, a discharge plate is arranged in the inner cavity of the discharge groove, and resisting blocks are fixedly connected on both sides of the discharge plate, and the resisting blocks slide in the output groove and engage with the discharge plate, and a feeding assembly is arranged inside the top of the device body.
[0007] Furthermore, the material unloading assembly includes a hydraulic cylinder, which is installed on the top of the device body, and the output end of the hydraulic cylinder passes through the device body and is fixedly connected to the lower pressure plate, and a positioning plate is arranged on the top of the lower pressure plate, and springs 2 are fixedly connected to the four corners between the lower pressure plate and the positioning plate, and positioning rods are fixedly connected to the four corners of the lower pressure plate, and the positioning rods pass through spring 2, and the ends of the four positioning rods away from the lower pressure plate pass through the positioning plate and are fixedly connected to a circular limit plate 1.
[0008] Furthermore, the blanking assembly also includes a resistance rod, which is fixedly connected to the four internal corners of the device body. The end of the resistance rod away from the device body passes through the positioning plate and is fixedly connected to the resistance plate, and the resistance plate passes through the lower pressure plate and is slidably connected. The four sides of the bottom of the device body are threadedly connected with cutting molds, and the cutting mold cooperates with the resistance plate.
[0009] Furthermore, two slide grooves are provided on both sides of the bottom of the discharge plate, and the inner cavities of the two slide grooves on both sides are slidably connected with sliders, and the bottoms of the two sliders are fixedly connected with two limiting cylinders.
[0010] Furthermore, a spring three is fixedly connected to the top of the inner cavity of the two limiting cylinders, a circular limiting plate two is fixedly connected to the side of the two springs three away from the limiting cylinders, and the circular limiting plate two slides in the limiting cylinders.
[0011] Furthermore, both sides of the inner cavity of the discharge trough close to the output trough are provided with a chute one, and the chute one corresponds to the chute two.
[0012] Furthermore, a side of the circular limit plate 2 away from the spring 3 passes through the limit tube and is fixedly connected with a connecting block, a side of the connecting block away from the circular limit plate 2 is installed with a pulley, and the pulley slides in the slide groove 1.
[0013] A method for producing and using a school bag comprises the following steps:
[0014] S1. Pull out the unloading plate slowly. This operation will cause the slider to slide smoothly in the second slideway, and the pulley will also slide smoothly in the first slideway. After the unloading plate is fully pulled out, stack the multiple layers of leather neatly on the top of the unloading plate to prepare the materials for the subsequent cutting process. Ensure that the leather is placed flat and wrinkle-free for accurate cutting;
[0015] S2. After loading, the feeding plate is slowly pushed back into the feeding trough. During the process of pushing the feeding plate back, the abutment block moves accordingly. When the abutment block reaches the middle of the feeding trough, it accurately abuts against the abutment chute. This abutment causes the lower slide plate to start moving vertically downward. During the downward movement of the lower slide plate, it will slide smoothly along the outer wall of the connecting rod, thereby stretching the spring 1. At the same time, the lower slide plate drives the pressing plate to move downward synchronously, clamping the leather placed on the feeding plate to prevent the leather from shifting during cutting.
[0016] S3. After the material loading and clamping work is completed, the hydraulic cylinder is started. The power of the hydraulic cylinder drives the lower pressing plate and the positioning plate to move vertically downward. The two will slide down smoothly along the outer wall of the resistance rod. At this time, the cutting mold installed at the bottom of the lower pressing plate exerts force accurately to cut the leather. During the pressing and cutting process of the lower pressing plate and the cutting mold, the positioning rod will slide upward, so that the spring 2 is compressed. With the help of the elastic force of the spring 2, it is ensured that the lower pressing plate and the cutting mold are more stable during the pressing and cutting process, and the cutting line is straighter and more accurate.
[0017] S4. After the cutting process is successfully completed, the hydraulic cylinder is started again to quickly reset the lower pressure plate and the positioning rod. At this time, there is a high probability that there are leather scraps left in the cutting mold. During the reset process, the resistance rod and the resistance plate work together to resist the leather in the cutting mold to prevent the leather from getting stuck in the mold and affecting the subsequent cutting operation;
[0018] S5. Finally, the unloading plate is pulled out again to take out the finished leather product that has been cut. During the process of pulling out the unloading plate, the abutment block will gradually disengage from the abutment chute. At this time, the lower slide plate will quickly reset under the elastic force of spring 1 and return to the initial state, preparing for the next round of cutting operation.
[0019] Compared with the prior art, the present invention provides a punching machine for school bag production and a method of use, which has the following beneficial effects:
[0020] 1. The waste material treatment device which is easy to clean, after completing the loading, slowly pushes the feeding plate back into the feeding trough. In the process of pushing the feeding plate back, the abutment block moves accordingly. When the abutment block reaches the middle position of the feeding trough, it will accurately abut against the abutment inclined groove. This touch causes the lower slide plate to start to move vertically downward. During the downward movement of the lower slide plate, it will slide smoothly along the outer wall of the connecting rod, thereby stretching the spring 1. At the same time, the lower slide plate drives the pressing plate to move downward synchronously, clamping the leather placed on the feeding plate to prevent the leather from being displaced during cutting, so that the edge of the leather is more neat during cutting.
[0021] 2. After the cutting process is completed, the waste treatment device, which is easy to clean, starts the hydraulic cylinder again to quickly reset the lower pressure plate and the positioning rod. At this time, there is a high probability that there are leather scraps left in the cutting mold. During the reset process, the resistance rod and the resistance plate work together to resist the leather in the cutting mold to prevent the leather from getting stuck in the mold and affecting subsequent cutting operations. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the external structure of the present invention;
[0023] Figure 2 This is a schematic diagram of the internal structure of the discharge trough of the present invention;
[0024] Figure 3 The present invention provides Figure 2 A schematic diagram of the structure enlargement of part A;
[0025] Figure 4 This is a schematic diagram of the bottom of the unloading plate of the present invention;
[0026] Figure 5 A side sectional view of the device body of the present invention;
[0027] Figure 6 A side sectional view of the lower pressing plate of the present invention;
[0028] Figure 7 It is a schematic diagram of the internal structure of the limiting cylinder of the present invention.
[0029] In the figure: 1. device body; 2. discharge trough; 3. output trough; 301. compression trough; 302. connecting rod; 303. spring one; 304. lower slide plate; 305. abutment inclined trough; 306. pressing plate; 307. discharge plate; 308. abutment block; 4. hydraulic cylinder; 401. lower pressing plate; 402. positioning plate; 403. spring two; 404. positioning rod; 405. circular limit plate one; 406. abutment rod; 407. abutment plate; 408. cutting die; 5. slide trough one; 6. slide trough two; 7. slide block; 8. limit cylinder; 9. spring three; 10. circular limit plate two; 11. connecting block; 12. pulley. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0031] See also Figure 1-Figure 7 The present invention discloses a punching machine for schoolbag production and a method of using the punching machine, comprising a device body 1, a material discharge trough 2 is provided in the middle of the front side of the device body 1, and a fixing component is provided inside the material discharge trough 2.
[0032] The fixed component includes an output groove 3, output grooves 3 are opened on both sides of the inner cavity of the discharge groove 2, compression grooves 301 are opened in the middle of both sides of the inner wall of the discharge groove 2, and the compression grooves 301 and the output groove 3 are connected to each other, and the top of the inner cavity of one side compression groove 301 is fixedly connected to two connecting rods 302, and springs 303 are fixedly connected on both sides of the top of the compression groove 301, and the springs 303 are sleeved on the outer walls of the connecting rods 302, and the bottom of the springs 303 penetrates and is slidably connected with a lower slide plate 304, the top of the lower slide plate 304 is fixedly connected to the springs 303, and the bottom of the lower slide plate 304 is in the middle of the lower slide plate 304. A resisting inclined groove 305 is provided at the top of the lower slide plate 304, a pressing plate 306 is fixedly connected to one side of the top of the lower slide plate 304, and a discharge plate 307 is provided in the inner cavity of the discharge groove 2. When the discharge plate 307 is pulled out, the slider 7 will slide in the slide groove 2 6 and the pulley 12 will slide in the slide groove 1 5. After the discharge plate 307 is pulled out, the multi-layer leather is uniformly placed on the top of the discharge plate 307. Both sides of the discharge plate 307 are fixedly connected with resisting blocks 308, and the resisting blocks 308 slide in the output groove 3 and are connected with the discharge groove 3. A feeding assembly is provided inside the top of the device body 1;
[0033] After loading is completed, the discharge plate 307 is pushed back into the discharge trough 2. During the process of pushing the discharge plate 307 back, the abutment block 308 is driven to move. When the abutment block 308 moves to the middle position of the discharge trough 2, it abuts against the abutment inclined groove 305, causing the lower slide plate 304 to move downward. During the process of the lower slide plate 304 moving downward, the lower slide plate 304 can slide on the outer wall of the connecting rod 302 to stretch the spring 1 303. When the lower slide plate 304 moves, the pressing plate 306 is driven to move downward to clamp the leather placed on the discharge plate 307.
[0034] like Figure 4 and Figure 6As shown, the material unloading assembly includes a hydraulic cylinder 4, a hydraulic cylinder 4 is installed on the top of the device body 1, the output end of the hydraulic cylinder 4 passes through the device body 1 and is fixedly connected to a lower pressure plate 401, a positioning plate 402 is arranged on the top of the lower pressure plate 401, springs 403 are fixedly connected to the four corners between the lower pressure plate 401 and the positioning plate 402, and positioning rods 404 are fixedly connected to the four corners of the lower pressure plate 401, and the positioning rods 404 pass through the springs 403, and the four positioning rods 404 are far away One end of the lower pressing plate 401 passes through the positioning plate 402 and is fixedly connected with a circular limit plate 405. When the material feeding and clamping are completed, the lower pressing plate 401 and the positioning plate 402 move downward, and at the same time, the lower pressing plate 401 and the positioning plate 402 slide on the outer wall of the resistance rod 406, and the leather is cut by the cutting mold 408 installed at the bottom of the lower pressing plate 401. When the lower pressing plate 401 and the cutting mold 408 move downward for cutting, the positioning rod 406 at this time 04 will compress the spring 2 403 when sliding, so that the lower pressing plate 401 and the cutting mold 408 are more stable when pressing down and cutting. The blanking assembly also includes a resistance rod 406, which is fixedly connected to the four corners of the inner part of the device body 1. The end of the resistance rod 406 away from the device body 1 passes through the positioning plate 402 and is fixedly connected with a resistance plate 407, and the resistance plate 407 passes through the lower pressing plate 401 and is slidably connected. The four sides of the bottom of the device body 1 are threadedly connected There is a cutting mold 408, and the cutting mold 408 cooperates with the resistance plate 407; when the cutting is completed, the lower pressure plate 401 and the positioning rod 404 are reset when the hydraulic cylinder 4 is started. At this time, the cutting mold 408 will have the cut leather. In the process of resetting the lower pressure plate 401 and the positioning rod 404, the leather in the cutting mold 408 will be resisted by the resistance rod 406 and the resistance plate 407 to prevent the leather squeezed by the cutting mold 408 from getting stuck in the mold.
[0035] like Figure 3 and Figure 7As shown, two slide grooves 6 are provided on both sides of the bottom of the discharge plate 307, and the inner cavities of the two slide grooves 6 on both sides are slidably connected with sliders 7, and the bottoms of the two sliders 7 are fixedly connected with two limit cylinders 8, and the tops of the inner cavities of the two limit cylinders 8 are fixedly connected with springs 3 9, and the two springs 3 9 are fixedly connected with circular limit plates 2 10 on the side away from the limit cylinders 8, and the circular limit plates 2 10 slide in the limit cylinders 8; the inner cavity of the discharge trough 2 near the output trough 3 is provided with slide grooves 1 5 on both sides, and the slide grooves 1 5 and the slide grooves 2 6, the side of the circular limit plate 2 10 away from the spring 3 9 passes through the limit cylinder 8 and is fixedly connected with a connecting block 11, and the side of the connecting block 11 away from the circular limit plate 2 10 is installed with a pulley 12, and the pulley 12 slides in the slide groove 1 5; when cutting leather, when the lower pressure plate 401 is pressed down and contacts with the discharge plate 307, the discharge plate 307 will move down a certain distance, which will cause the slider 7 and the limit cylinder 8 to move down at the same time. When the spring 3 9 is compressed, it is avoided that the downward pressure will cause damage to the pulley 12.
[0036] A method for producing and using a school bag comprises the following steps:
[0037] S1. Pull out the unloading plate 307 slowly. This operation will cause the slider 7 to slide smoothly in the second slide groove 6, and the pulley 12 will also slide smoothly in the first slide groove 5. After the unloading plate 307 is fully pulled out, the multiple layers of leather are neatly stacked on the top of the unloading plate 307 to prepare the materials for the subsequent cutting process, ensuring that the leather is placed flat and wrinkle-free for accurate cutting;
[0038] S2. After the loading is completed, the feeding plate 307 is slowly pushed back into the feeding trough 2. During the process of pushing the feeding plate 307 back, the abutment block 308 moves accordingly. When the abutment block 308 reaches the middle position of the feeding trough 2, it accurately abuts against the abutment inclined groove 305. This abutment causes the lower slide plate 304 to start to move vertically downward. During the downward movement of the lower slide plate 304, it slides smoothly along the outer wall of the connecting rod 302, thereby stretching the spring 1 303. At the same time, the lower slide plate 304 drives the pressing plate 306 to move downward synchronously, clamping the leather placed on the feeding plate 307 to prevent the leather from shifting during cutting.
[0039] S3. After the material feeding and clamping work is completed, the hydraulic cylinder 4 is started. The power of the hydraulic cylinder 4 drives the lower pressing plate 401 and the positioning plate 402 to move vertically downward. The two will slide down smoothly along the outer wall of the resistance rod 406. At this time, the cutting mold 408 installed at the bottom of the lower pressing plate 401 exerts force accurately to cut the leather. During the process of the lower pressing plate 401 and the cutting mold 408 pressing down and cutting, the positioning rod 404 will slide upward, so that the spring 2 403 is compressed. With the help of the elastic force buffer of the spring 2 403, it is ensured that the lower pressing plate 401 and the cutting mold 408 are more stable when pressing down and cutting, and the cutting line is straighter and more accurate.
[0040] S4, after the cutting process is successfully completed, the hydraulic cylinder 4 is started again to quickly reset the lower pressing plate 401 and the positioning rod 404. At this time, there is a high probability that there are leather scraps left in the cutting mold 408. During the reset process, the resistance rod 406 and the resistance plate 407 work together to resist the leather in the cutting mold 408 to prevent the leather from getting stuck in the mold and affecting the subsequent cutting operation;
[0041] S5. Finally, the feeding plate 307 is pulled out again to take out the finished leather product that has been cut. During the process of pulling out the feeding plate 307, the abutment block 308 will gradually disengage from the abutment inclined groove 305. At this time, the lower slide plate 304 is quickly reset under the elastic force of the spring 1 303 and returns to the initial state, preparing for the next round of cutting operation.
Claims
1. A punching machine for producing school bags, comprising a device body (1), characterized in that: A material discharge trough (2) is provided in the middle of the front side of the device body (1), and a fixing component is arranged inside the material discharge trough (2). The fixed component comprises an output groove (3), the output grooves (3) are provided on both sides of the inner cavity of the discharge groove (2), compression grooves (301) are provided in the middle of both sides of the inner wall of the discharge groove (2), and the compression grooves (301) and the output groove (3) are communicated with each other, and the inner cavity top of the compression groove (301) on one side is fixedly connected with two connecting rods (302), and the top two sides of the compression groove (301) are fixedly connected with springs (303), and the springs (303) are sleeved on the outer walls of the connecting rods (302), and the bottom of the springs (303) penetrates and is slidably connected to the inner cavity of the compression groove (301). A lower slide plate (304) is connected, the top of the lower slide plate (304) is fixedly connected to a spring (303), a resisting inclined groove (305) is provided in the middle of the bottom of the lower slide plate (304), a material pressing plate (306) is fixedly connected to one side of the top of the lower slide plate (304), a material discharge plate (307) is provided in the inner cavity of the material discharge groove (2), and both sides of the material discharge plate (307) are fixedly connected to resisting blocks (308), and the resisting blocks (308) slide in the output groove (3) and are engaged with the output groove (3), and a material discharge assembly is provided inside the top of the device body (1).
2. A punching machine for producing school bags according to claim 1, characterized in that: The material discharge assembly comprises a hydraulic cylinder (4), the hydraulic cylinder (4) is installed on the top of the device body (1), the output end of the hydraulic cylinder (4) passes through the device body (1) and is fixedly connected to a lower pressure plate (401), a positioning plate (402) is arranged on the top of the lower pressure plate (401), four corners between the lower pressure plate (401) and the positioning plate (402) are fixedly connected to spring two (403), four corners of the lower pressure plate (401) are fixedly connected to positioning rods (404), and the positioning rods (404) pass through spring two (403), and one end of the four positioning rods (404) away from the lower pressure plate (401) passes through the positioning plate (402) and is fixedly connected to a circular limit plate one (405).
3. A punching machine for producing school bags according to claim 1, characterized in that: The blanking assembly also includes a resistance rod (406), which is fixedly connected to the four internal corners of the device body (1). The end of the resistance rod (406) away from the device body (1) passes through the positioning plate (402) and is fixedly connected to a resistance plate (407), and the resistance plate (407) passes through the lower pressure plate (401) and is slidably connected. The four sides of the bottom of the device body (1) are threadedly connected to a cutting mold (408), and the cutting mold (408) cooperates with the resistance plate (407).
4. The punching machine for producing school bags according to claim 1, characterized in that: The two sides of the bottom of the discharge plate (307) are provided with two slide grooves (6), the inner cavities of the two slide grooves (6) on both sides are slidably connected with sliders (7), and the bottoms of the two sliders (7) are fixedly connected with two limiting cylinders (8).
5. A punching machine for producing school bags according to claim 4, characterized in that: A spring three (9) is fixedly connected to the top of the inner cavity of the two limiting cylinders (8), and a circular limiting plate two (10) is fixedly connected to the side of the two springs three (9) away from the limiting cylinder (8), and the circular limiting plate two (10) slides in the limiting cylinder (8).
6. The punching machine for school bag production according to claim 1, characterized in that: The inner cavity of the discharge trough (2) is provided with a chute 1 (5) on both sides close to the output trough (3), and the chute 1 (5) corresponds to the chute 2 (6).
7. The punching machine for producing school bags according to claim 5, characterized in that: The side of the circular limiting plate 2 (10) away from the spring 3 (9) passes through the limiting cylinder (8) and is fixedly connected to a connecting block (11); a pulley (12) is installed on the side of the connecting block (11) away from the circular limiting plate 2 (10), and the pulley (12) slides in the sliding groove 1 (5).
8. A method for producing and using a school bag, applied to a punching machine for producing a school bag according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Pull out the unloading plate (307) slowly. This operation will cause the slider (7) to slide smoothly in the second slide groove (6), and the pulley (12) will also slide smoothly in the first slide groove (5). After the unloading plate (307) is fully pulled out, the multiple layers of leather are neatly stacked on the top of the unloading plate (307) to prepare the materials for the subsequent cutting process, ensuring that the leather is placed flat and wrinkle-free for accurate cutting; S2. After the loading is completed, the feeding plate (307) is slowly pushed back into the feeding trough (2). During the process of pushing the feeding plate (307) back, the abutment block (308) moves accordingly. When the abutment block (308) reaches the middle position of the feeding trough (2), it will accurately abut against the abutment inclined groove (305). This abutment causes the lower slide plate (304) to start to move vertically downward. During the downward movement of the lower slide plate (304), it will slide smoothly along the outer wall of the connecting rod (302), thereby stretching the spring 1 (303). At the same time, the lower slide plate (304) drives the pressing plate (306) to move downward synchronously, clamping the leather placed on the feeding plate (307) to prevent the leather from being displaced during cutting. S3. After the material loading and clamping work is completed, the hydraulic cylinder (4) is started. The power of the hydraulic cylinder (4) drives the lower pressing plate (401) and the positioning plate (402) to move vertically downward. The two will slide down smoothly along the outer wall of the resistance rod (406). At this time, the cutting mold (408) installed at the bottom of the lower pressing plate (401) exerts force accurately to cut the leather. During the process of the lower pressing plate (401) and the cutting mold (408) pressing down and cutting, the positioning rod (404) will slide upward, so that the spring 2 (403) is compressed. With the help of the elastic force buffer of the spring 2 (403), it is ensured that the lower pressing plate (401) and the cutting mold (408) operate more stably during the pressing and cutting, and the cutting line is straighter and more accurate. S4, after the cutting process is successfully completed, the hydraulic cylinder (4) is started again to cause the lower pressing plate (401) and the positioning rod (404) to quickly reset. At this time, there is a high probability that there are leather scraps left in the cutting mold (408). During the reset process, the resistance rod (406) and the resistance plate (407) work together to resist the leather in the cutting mold (408) to prevent the leather from being stuck in the mold and affecting the subsequent cutting operation; S5. Finally, the unloading plate (307) is pulled out again to take out the finished leather product that has been cut. During the process of pulling out the unloading plate (307), the abutment block (308) will gradually disengage from the abutment inclined groove (305). At this time, the lower slide plate (304) is quickly reset under the elastic force of the spring 1 (303) and returns to the initial state, so as to prepare for the next round of cutting operation.