An automatic leather cutting machine for shoe processing

Abstract

This invention discloses an automatic leather cutting machine for shoe processing, relating to the field of leather processing technology. The invention includes a chassis, inside which a leather cutting assembly is housed. A refrigeration unit is installed on the left inner wall of the chassis, and a feeding port is opened on the right side of the chassis. A film-coated feeding assembly is slidably connected to the feeding port. This invention utilizes a multi-layered film with internal temperature-sensitive layers. At room temperature, the leather is wrapped by negative pressure within the film. After wrapping, the leather and film are fed into the chassis together. Under low-temperature conditions, the temperature-sensitive layers harden, temporarily transforming into a "leather-film composite board." This significantly enhances the overall rigidity and dimensional stability of the material, eliminates internal voids and wrinkles, preventing the leather from springing back after cutting. Furthermore, cutting from the hardened outer layer improves cutting accuracy, enabling efficient and high-quality automated cutting of high-quality leather to meet the demands of the high-quality market.

Description

Technical Field

[0001] This invention relates to the field of leather shoe processing technology, and more specifically to an automatic leather cutting machine for leather shoe processing. Background Technology

[0002] In the large-scale production process of leather shoes, leather cutting is the first and most important process. Its core task is to efficiently and accurately cut out parts such as the upper and tongue from a whole piece of natural leather according to the shoe pattern (hereinafter referred to as "die" or "pattern").

[0003] Currently, conventional automatic leather cutting machines for shoe processing can only process ordinary, lower-priced leathers. For high-end leathers, such as Nappa calfskin, lambskin, and suede, which are inherently soft and elastic, mechanical cutting often involves cutting the desired outline along the shoe pattern. A single piece of leather can yield multiple patterns, altering the stress distribution within the leather after cutting. This leads to localized stretching and deformation during mechanical cutting, resulting in uneven edges or sags after the material springs back. While non-contact cutting, such as laser cutting, is non-contact, the heat-affected zone can carbonize and blacken the edges of genuine leather, producing a burnt smell and severely impacting the quality and feel of high-end leather. Water jet cutting, on the other hand, produces water stains. Therefore, high-end shoe leather cutting still primarily relies on manual cutting.

[0004] Chinese Patent (Publication No.: CN211497666U) discloses an automatic cutting machine, including a frame, a worktable mounted on the frame, a feeding table, a mounting frame mounted on the frame, and a cutting table mounted on the mounting frame. The frame has two vertical connecting frames, with a film-coating roller installed between them. A plastic film is wound on the film-coating roller. A cutter holder is mounted on the connecting frame, located below the film-coating roller, and a cutting blade is mounted on the cutter holder. Several negative pressure plates are slidably mounted on the worktable, with multiple air holes at the top of the negative pressure plates, and a negative pressure device is installed on the negative pressure plates. A cutting blade is installed at the bottom of the cutting table, and a first drive mechanism is installed on the cutting table to drive it horizontally along the mounting frame. The bottom of the mounting frame is movably mounted on both sides of the frame, and a second drive mechanism is installed on the mounting frame to drive it horizontally along the frame. A drive device is installed on the worktable to drive the negative pressure plates horizontally.

[0005] The aforementioned patent mainly utilizes the negative pressure of a thin film to compress the leather together, making it easier to cut later. However, it can only be cut once. After the first cut, the thin film and leather are cut apart, the internal negative pressure is lost, and the fixing effect is lost. Moreover, the fixing effect on the leather is limited. If it is a single layer of leather cutting, the leather is still prone to misalignment and rebound, making it impossible to achieve high-quality leather cutting. Summary of the Invention

[0006] The purpose of this invention is to solve the above problems by providing an automatic leather cutting machine for leather shoe processing.

[0007] To achieve the above objectives, the present invention specifically adopts the following technical solution: An automatic leather cutting machine for leather shoe processing includes a machine housing, inside which a leather cutting assembly is installed. A refrigeration unit is installed on the left inner wall of the machine housing, and a feeding port is opened on the right side of the machine housing. A film-coated feeding assembly is slidably connected to the feeding port. The film-coating feeding assembly includes a tray slidably connected to the feeding port. A negative pressure adsorption platform is provided on the top of the tray. A film roller is rotatably installed on the right side of the negative pressure adsorption platform. A guide roller is provided between the film roller and the negative pressure adsorption platform. Multiple layers of film are wound on the film roller. The multiple layers of film consist of two outer film layers and a temperature-sensitive layer. The temperature-sensitive layer is located between the two outer film layers. Four sets of lifting cylinders are provided on the top of the tray. A clamping frame is fixedly installed on the top of the extension end of the lifting cylinder. The clamping frame is located above the negative pressure adsorption platform.

[0008] Furthermore, the temperature-sensitive layer uses UCST-type phase change hydrogel. At room temperature above 20°C, the gel is soft and viscous, and can tightly wrap the leather under negative pressure. At low temperature of 5-8°C, the gel rapidly dehydrates and shrinks, increasing its modulus by tens to hundreds of times, forming a rigid support.

[0009] Furthermore, the leather cutting assembly includes an X-axis linear slide rail module fixedly installed at the bottom of the chassis, a gantry frame is provided on the X-axis linear slide rail module, the film feeding assembly can pass through the gantry frame, a Y-axis linear slide rail module is provided on the gantry frame, a Z-axis linear slide rail module is vertically provided on the Y-axis linear slide rail module, a cutting drive is installed on the Z-axis linear slide rail module, and a cutting tool is installed at the bottom of the output end of the cutting drive.

[0010] Furthermore, the top of the negative pressure adsorption stage is linearly arrayed with several adsorption holes, and the inside of the adsorption holes is provided with a cutting baffle.

[0011] Furthermore, both the front and back sides of the negative pressure adsorption stage are provided with linear slide rail modules. A clamping assembly for clamping multi-layer films is installed on the linear slide rail module. The clamping assembly includes a mounting bracket fixedly installed on the linear slide rail module. A transmission groove is provided inside the mounting bracket. A clamping motor is fixedly installed on the top of the mounting bracket. A clamping screw is installed at the output end of the clamping motor. The clamping screw passes through the transmission groove. The clamping screw is a bidirectional positive and negative screw. Two sets of clamping plates are slidably connected to the side of the mounting bracket near the negative pressure adsorption stage. The two sets of clamping plates are threaded to both ends of the clamping screw. The transmission groove is sealed by a cover plate.

[0012] Furthermore, a second linear slide rail module is provided on the top of the clamping frame, and an adjustable pressure plate is installed on the second linear slide rail module. The length of the adjustable pressure plate is the same as the inner width of the clamping frame, the bottom surface of the adjustable pressure plate is flush with the bottom surface of the clamping frame, and the width of the adjustable pressure plate is less than the distance between adjacent adsorption holes.

[0013] Furthermore, a linear slide rail module three is provided at the top of the right end of the clamping frame, and a film cutting assembly is provided on the linear slide rail module three. A cutting groove is provided at the top of the negative pressure adsorption platform corresponding to the position of the film cutting assembly.

[0014] Furthermore, the film cutting assembly consists of a knife holder, a cylinder, and a film cutting cutter. The knife holder is mounted on the linear slide rail module three (), the cylinder is mounted on the knife holder, and the film cutting cutter is mounted at the bottom of the cylinder extension end. The film cutting cutter is arranged in a trapezoidal shape. When the knife holder moves to the outermost edge of the linear slide rail module three, the film cutting cutter extends beyond the edge of the multi-layer film coating.

[0015] Furthermore, a sealing door is provided on the right side of the pallet, which can seal with the loading port. A wheel guide rail is provided at the bottom of the inner side of the machine box. A pulley is provided at the bottom of the left end of the pallet, and the pulley is slidably connected in the wheel guide rail. A support leg is provided on the right side of the sealing door, and a roller is provided at the bottom of the support leg.

[0016] Furthermore, the front of the chassis is provided with an observation window and a control panel. The control panel can control and display the internal temperature of the chassis and control the cutting path of the cutting component.

[0017] The beneficial effects of this invention are as follows: 1. This invention utilizes a multi-layered, temperature-sensitive inner layer. At room temperature, the leather is wrapped under negative pressure by the film. After wrapping, the leather and film are fed into a machine chamber. Under low-temperature conditions, the temperature-sensitive layer hardens, temporarily transforming into a "leather-film composite board." This significantly enhances the overall rigidity and dimensional stability of the material, enabling it to withstand the downward pressure and shearing force during cutting without localized stretching or wrinkling. The film itself is a uniform, non-porous, and highly malleable material. Vacuuming it allows for absolute sealing and uniform adsorption, completely solving the problem of uneven adsorption caused by the porous nature of leather. The leather is uniformly compressed by the film, eliminating internal gaps and wrinkles. This prevents the leather from springing back after cutting, and cutting from the hardened outer layer improves cutting precision. This allows for efficient and high-quality automated cutting of high-quality leather, meeting the demands of the high-quality market.

[0018] 2. This invention adopts a drawer-type feeding method, pre-clamping the leather at room temperature, and then quickly pushing it into the machine box to achieve low-temperature hardening clamping. It is simple to operate and has high loading and unloading efficiency.

[0019] 3. The present invention, through the setting of the clamping frame and the adjustable pressure plate, can adjust the coating length according to the size of the leather, save the use of multiple layers of coating material, and is suitable for cutting high-quality leather of different sizes, thereby reducing processing costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the coating and feeding assembly structure of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the coating and feeding assembly structure of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the negative pressure adsorption platform of the present invention; Figure 5 This is a schematic diagram of the clamping component of the present invention; Figure 6 This is a schematic diagram of the multilayer coating structure of the present invention.

[0021] Reference numerals: 1. Chassis; 11. X-axis linear guide module; 12. Gantry; 13. Y-axis linear guide module; 14. Z-axis linear guide module; 15. Cutting drive; 16. Cutting tool; 2. Refrigeration unit; 3. Control panel; 4. Feeding port; 5. Film-coated feeding assembly; 51. Pallet; 52. Sealing door; 53. Negative pressure adsorption platform; 531. Adsorption hole; 532. Cutting groove; 54. Linear guide module one; 55. Clamp 551. Mounting bracket; 552. Clamping motor; 553. Clamping screw; 554. Clamping plate; 56. Lifting cylinder; 57. Clamping frame; 571. Linear slide rail module two; 572. Adjustable pressure plate; 573. Linear slide rail module three; 574. Cutting assembly; 58. Film roller; 59. Multi-layer film coating; 591. Outer film layer; 592. Temperature-sensitive layer; 510. Guide roller; 511. Pulley; 6. Support leg; 7. Wheel guide rail. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0023] Example 1, as Figures 1-6 As shown, an automatic leather cutting machine for leather shoe processing includes a machine housing 1, a leather cutting component is installed inside the machine housing 1, a refrigeration unit 2 is installed on the left inner wall of the machine housing 1, and a feeding port 4 is opened on the right side of the machine housing 1. A film-coated feeding component 5 is slidably connected in the feeding port 4. The film-coating feeding assembly 5 includes a tray 51 slidably connected to the feeding port 4. A negative pressure adsorption platform 53 is provided on the top of the tray 51. A film roller 58 is rotatably installed on the right side of the negative pressure adsorption platform 53. A guide roller 510 is provided between the film roller 58 and the negative pressure adsorption platform 53. A multi-layer film 59 is wound on the film roller 58. The multi-layer film 59 consists of two outer film layers 591 and a temperature-sensitive layer 592. The temperature-sensitive layer 592 is disposed between the two outer film layers 591. Four sets of lifting cylinders 56 are provided on the top of the tray 51. A clamping frame 57 is fixedly installed on the top of the telescopic end of the lifting cylinder 56. The clamping frame 57 is located above the negative pressure adsorption platform 53.

[0024] Preferably, the temperature-sensitive layer 592 uses UCST-type phase change hydrogel. At room temperature above 20°C, the gel is soft and viscous, and can tightly wrap the leather under negative pressure. At low temperature of 5-8°C, the gel rapidly dehydrates and shrinks, increasing its modulus by tens to hundreds of times, forming a rigid support.

[0025] Preferably, the front of the chassis 1 is provided with an observation window and a control panel 3. The control panel 3 can control and display the internal temperature of the chassis 1 and can control the cutting path of the cutting component.

[0026] Operating steps: Pull the film loading component 5 out of the machine box 1 like a drawer, control the lifting cylinder 56 to operate, the lifting cylinder 56 drives the clamping frame 57 to rise and release the multi-layer film 59, and then remove the cut leather shoe pattern and excess material from the negative pressure adsorption platform 53. During the material unloading period, the UCST phase change hydrogel changes from a low temperature environment to room temperature, and the UCST phase change hydrogel has enough time to soften. Then, place the new leather on the negative pressure adsorption platform 53 and cover it with the multi-layer film 59. Then, the negative pressure adsorption platform 53 generates negative pressure, which tightly adsorbs the multi-layer film 59 and the leather together. The film itself is a uniform, non-porous, and highly plastic material. Vacuuming it can achieve absolute sealing and uniform adsorption, completely solving the problem of uneven adsorption caused by the porosity of the leather itself. After adsorption is complete, the film-coating feeding component 5 is pushed into the housing 1. After cooling for a period of time, the temperature-sensitive layer 592 hardens, temporarily transforming into a "leather-film composite board." This greatly enhances the overall rigidity and dimensional stability of the material, enabling it to withstand the downward pressure and shear force during cutting without localized stretching or wrinkling. Then, the negative pressure of the negative pressure adsorption platform 53 is removed to reduce equipment energy consumption. The leather cutting component cuts along the shoe pattern path. The leather is evenly compressed by the film, eliminating internal gaps and wrinkles, ensuring that the leather does not spring back after cutting. Cutting from the hardened outer layer improves cutting accuracy, enabling efficient and high-quality automated cutting of high-quality leather to meet the demands of the high-quality market.

[0027] Example 2, based on the above examples, further includes a leather cutting assembly comprising an X-axis linear slide rail module 11 fixedly installed at the bottom of the housing 1, a gantry frame 12 mounted on the X-axis linear slide rail module 11, through which the film-coating feeding assembly 5 can pass, a Y-axis linear slide rail module 13 mounted on the gantry frame 12, a Z-axis linear slide rail module 14 vertically mounted on the Y-axis linear slide rail module 13, a cutting drive 15 mounted on the Z-axis linear slide rail module 14, and a cutting blade 16 mounted at the bottom of the output end of the cutting drive 15.

[0028] Preferably, the top of the negative pressure adsorption stage 53 has a plurality of adsorption holes 531 arranged in a linear array, and a cutting baffle is provided inside the adsorption hole 531. This design prevents the cutting tool 16 from entering the adsorption hole 531 during the cutting process.

[0029] Preferably, the negative pressure adsorption stage 53 is provided with linear slide rail modules 54 on both the front and back sides. The linear slide rail modules 54 are equipped with clamping components 55 for clamping multi-layer coatings 59. The clamping components 55 include a mounting bracket 551 fixedly mounted on the linear slide rail modules 54. The mounting bracket 551 has a transmission groove inside. A clamping motor 552 is fixedly mounted on the top of the mounting bracket 551. A clamping screw 553 is installed at the output end of the clamping motor 552. The clamping screw 553 passes through the transmission groove. The clamping screw 553 is a bidirectional positive and negative screw. Two sets of clamping plates 554 are slidably connected to the side of the mounting bracket 551 near the negative pressure adsorption stage 53. The two sets of clamping plates 554 are respectively threaded to the two ends of the clamping screw 553. The transmission groove is sealed by a cover plate.

[0030] Preferably, a linear slide rail module 3 573 is provided on the top of the right end of the clamping frame 57, and a film cutting assembly 574 is provided on the linear slide rail module 3 573. A cutting groove 532 is provided on the top of the negative pressure adsorption stage 53 at the position corresponding to the film cutting assembly 574.

[0031] Preferably, the film cutting assembly 574 consists of a knife holder, a cylinder and a film cutting cutter. The knife holder is mounted on the linear slide rail module three (573), the cylinder is mounted on the knife holder, and the film cutting cutter is mounted at the bottom of the cylinder extension end. The film cutting cutter is arranged in a trapezoidal shape. When the knife holder moves to the outermost edge of the linear slide rail module three 573, the film cutting cutter extends beyond the edge of the multilayer film 59.

[0032] This embodiment provides a specific component structure; Operating steps: (1) Loading: Pull the film loading component 5 out of the machine box 1 like a drawer, control the lifting cylinder 56 to run, the lifting cylinder 56 drives the clamping frame 57 to rise and release the multi-layer film 59, then the linear slide rail module 1 54 drives the clamping component 55 to move to the position close to the guide roller 510, then control the clamping motor 552 to run, the clamping motor 552 drives the clamping screw 553 to rotate, the clamping screw 553 drives the two clamping plates 554 to close together, the clamping plates 554 clamp the multi-layer film 59, the front and rear clamping components 55 clamp the multi-layer film 59 at the same time, then the linear slide rail module 3 573 drives the film cutting component 574 to move along the cutting groove 532 to cut the multi-layer film 59, and then cut the film... The leather shoe pattern and excess material are removed from the negative pressure adsorption platform 53. During the material feeding process, the UCST phase change hydrogel moves from a low temperature environment to room temperature, giving it sufficient time to soften. Then, the new leather is placed on the negative pressure adsorption platform 53. After placement, the linear slide rail module 54 drives the clamping component 55 to move to the left. The clamping component 55 pulls the multi-layer coating 59 to unfold to the left. Once it is unfolded enough to cover the leather, the lifting cylinder 56 drives the clamping frame 57 to descend. The clamping frame 57 presses the edges of the multi-layer coating 59 onto the negative pressure adsorption platform 53. The negative pressure adsorption platform 53 generates negative pressure, tightly adsorbing the multi-layer coating 59 and the leather together. Then, the tray 51 is pushed into the housing 1.

[0033] (2) Cutting: After cooling for a period of time, disconnect the negative pressure and start the leather cutting assembly. The Z-axis linear slide rail module 14 drives the cutting tool 16 to descend and cut. The X-axis linear slide rail module 11 and the Y-axis linear slide rail module 13 control the cutting trajectory of the cutting tool 16. After cutting, unload the material.

[0034] It should be noted that since the four sides of the multilayer film 59 are tightly clamped by the frame 57, no gel will be squeezed out at the cut of the multilayer film 59 during the negative pressure adsorption process, thus ensuring the overall structural stability of the multilayer film 59.

[0035] In embodiment three, based on the above embodiments, a second linear slide rail module 571 is provided on the top of the clamping frame 57. An adjustable pressure plate 572 is installed on the linear slide rail module 571. The length of the adjustable pressure plate 572 is the same as the inner width of the clamping frame 57. The bottom surface of the adjustable pressure plate 572 is flush with the bottom surface of the clamping frame 57. The width of the adjustable pressure plate 572 is smaller than the distance between adjacent adsorption holes 531.

[0036] The adjustable pressure plate 572 slides inside the clamping frame 57 via the linear guide module 571, adjusting the coating length by controlling the distance between the adjustable pressure plate 572 and the right end of the clamping frame 57. This allows for coating of leather of different sizes, saving costs. The final position of the adjustable pressure plate 572 must be between adjacent adsorption holes 531. In actual use, the adsorption hole 531 located on the left side of the adjustable pressure plate 572 can be covered with a separate plastic film to ensure that the adsorption hole 531, which is not involved in operation, does not leak excessively and does not affect normal adsorption.

[0037] Example 4, based on the above examples, further includes a sealing door 52 on the right side of the pallet 51, which can seal with the feed port 4; a wheeled guide rail 7 is provided at the bottom of the inner side of the housing 1; a pulley 511 is provided at the bottom of the left end of the pallet 51, which is slidably connected to the wheeled guide rail 7; a support leg 6 is provided on the right side of the sealing door 52, and a roller is provided at the bottom of the support leg 6.

[0038] The sealing door 52 improves the sealing between the pallet 51 and the feed port 4, and the support leg 6 facilitates the pulling of the pallet 51 while improving the support stability of the pallet 51.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic leather cutting machine for leather shoe processing, comprising a machine housing (1), characterized in that, The chassis (1) is equipped with a leather cutting assembly inside. A refrigeration unit (2) is installed on the left inner wall of the chassis (1). A feeding port (4) is opened on the right side of the chassis (1). A film feeding assembly (5) is slidably connected in the feeding port (4). The film-coating feeding assembly (5) includes a tray (51) slidably connected to the feeding port (4). A negative pressure adsorption platform (53) is provided on the top of the tray (51). A film roller (58) is rotatably installed on the right side of the negative pressure adsorption platform (53). A guide roller (510) is provided between the film roller (58) and the negative pressure adsorption platform (53). A multi-layer film (59) is wound on the film roller (58). The multi-layer film (59) consists of two outer film layers (591) and a temperature-sensitive layer (592). The temperature-sensitive layer (592) is located between the two outer film layers (591). Four sets of lifting cylinders (56) are provided on the top of the tray (51). A clamping frame (57) is fixedly installed on the top of the extension end of the lifting cylinder (56). The clamping frame (57) is located above the negative pressure adsorption platform (53).

2. An automatic leather cutting machine for leather shoe processing according to claim 1, characterized in that, The temperature-sensitive layer (592) uses UCST-type phase change hydrogel. At room temperature above 20°C, the gel is soft and viscous. Under negative pressure, it can tightly wrap the leather. At low temperature of 5-8°C, the gel rapidly dehydrates and shrinks, increasing its modulus by tens to hundreds of times, forming a rigid support.

3. An automatic leather cutting machine for leather shoe processing according to claim 2, characterized in that, The leather cutting assembly includes an X-axis linear slide rail module (11) fixedly installed at the bottom of the machine housing (1). A gantry frame (12) is provided on the X-axis linear slide rail module (11). The film feeding assembly (5) can pass through the gantry frame (12). A Y-axis linear slide rail module (13) is provided on the gantry frame (12). A Z-axis linear slide rail module (14) is vertically provided on the Y-axis linear slide rail module (13). A cutting drive (15) is installed on the Z-axis linear slide rail module (14). A cutting tool (16) is installed at the bottom of the output end of the cutting drive (15).

4. An automatic leather cutting machine for leather shoe processing according to claim 3, characterized in that, The top of the negative pressure adsorption stage (53) has a linear array of adsorption holes (531), and the inside of the adsorption holes (531) is provided with a cutting baffle.

5. An automatic leather cutting machine for shoe processing according to claim 4, characterized in that, The negative pressure adsorption platform (53) is provided with linear slide rail module 1 (54) on both the front and back sides. The linear slide rail module 1 (54) is equipped with a clamping component (55) for clamping the multi-layer film (59). The clamping component (55) includes a mounting bracket (551) fixedly installed on the linear slide rail module 1 (54). The mounting bracket (551) has a transmission groove inside. The top of the mounting bracket (551) is fixedly installed with a clamping motor (552). The output end of the clamping motor (552) is equipped with a clamping screw (553). The clamping screw (553) passes through the transmission groove. The clamping screw (553) is a bidirectional positive and negative screw. The mounting bracket (551) is slidably connected to two sets of clamping plates (554) on the side near the negative pressure adsorption platform (53). The two sets of clamping plates (554) are respectively threaded to the two ends of the clamping screw (553). The transmission groove is sealed by a cover plate.

6. An automatic leather cutting machine for leather shoe processing according to claim 5, characterized in that, The top of the clamping frame (57) is provided with a linear slide rail module two (571), and an adjustable pressure plate (572) is installed on the linear slide rail module two (571). The length of the adjustable pressure plate (572) is the same as the inner width of the clamping frame (57), the bottom surface of the adjustable pressure plate (572) is flush with the bottom surface of the clamping frame (57), and the width of the adjustable pressure plate (572) is smaller than the distance between adjacent adsorption holes (531).

7. An automatic leather cutting machine for leather shoe processing according to claim 6, characterized in that, The top of the right end of the clamping frame (57) is provided with a linear slide rail module three (573), and a film cutting assembly (574) is provided on the linear slide rail module three (573). A cutting groove (532) is provided on the top of the negative pressure adsorption stage (53) corresponding to the position of the film cutting assembly (574).

8. An automatic leather cutting machine for leather shoe processing according to claim 7, characterized in that, The film cutting assembly (574) consists of a knife holder, a cylinder and a film cutting cutter. The knife holder is mounted on the linear slide rail module three (573), the cylinder is mounted on the knife holder, and the film cutting cutter is mounted at the bottom of the cylinder extension end. The film cutting cutter is arranged in a trapezoidal shape. When the knife holder moves to the outermost edge of the linear slide rail module three (573), the film cutting cutter extends beyond the edge of the multilayer film (59).

9. An automatic leather cutting machine for leather shoe processing according to claim 7, characterized in that, A sealing door (52) is provided on the right side of the pallet (51), and the sealing door (52) can seal with the feed port (4). A wheel guide rail (7) is provided at the bottom of the inner side of the machine box (1). A pulley (511) is provided at the bottom of the left end of the pallet (51), and the pulley (511) is slidably connected in the wheel guide rail (7). A support leg (6) is provided on the right side of the sealing door (52), and a roller is provided at the bottom of the support leg (6).

10. An automatic leather cutting machine for leather shoe processing according to claim 8, characterized in that, The front of the chassis (1) is provided with an observation window and a control panel (3). The control panel (3) can control and display the internal temperature of the chassis (1) and can control the cutting path of the cutting component.

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