Leather cutting machine for producing vamps of leather shoes

Abstract

The utility model discloses a leather cutting machine for producing vamps of leather shoes, relates to the technical field of vamp production, and solves the problems that the precision is difficult to guarantee, the leather utilization rate is low and the production cost is increased when complex patterns are cut in the prior art. Comprising a machine body, two pressing air cylinders are symmetrically connected to the upper end of the machine body, a connecting box is connected to the lower ends of piston rods of the pressing air cylinders, a die-cutting tool is connected to the lower end of the connecting box, a material ejecting plate is slidably connected into the connecting box, and the material ejecting plate is matched with the die-cutting tool; a material placing plate is arranged at the lower end of the die cutting tool, the bottom of the material placing plate is connected with a sliding block, and the machine body is provided with a sliding groove corresponding to the sliding block; the two ends of the material placing plate are symmetrically connected with two sets of fixing assemblies. The die-cutting tool has the beneficial effects that the die-cutting tool can be designed according to the actual demand of the vamp, the shape and size of a needed leather sheet material are accurately calculated, the generation of leather waste is reduced, and the utilization rate of leather is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shoe upper production, in particular to a leather cutting machine for producing leather shoe uppers. Background Art

[0002] Leather is an animal skin product obtained through physical and chemical processing such as dehairing and tanning. It has the characteristics of being non-perishable, comfortable to wear and non-degradable. Due to its excellent characteristics and aesthetic properties, leather is widely used in various fields of human life and is often used to make uppers and linings of leather shoes.

[0003] As consumers' demands for footwear continue to rise, the demands for leather cutting in the production of leather shoe uppers are becoming increasingly diverse. Traditional leather cutting techniques primarily involve manual cutting and mechanical cutting. While manual cutting is flexible, it is inefficient and difficult to ensure precision.

[0004] The current leather cutting machine structure is generally as described in the production cutting equipment for leather shoe uppers disclosed in patent application number "CN201710579534.8", which includes a frame, a feed chute is provided inside the frame, an electric control box is provided on the side wall of the frame, a regulator is provided on the other side of the frame, two symmetrical pads are provided on the surface of the frame, and a fixed plate is provided on the surface of the pad, and a push plate is fixed to the side wall of the fixed plate by a movable rod, a slider is provided at the bottom end of the fixed plate, and the slider is slidably connected to the slide, the surface of the pad is provided with two slides, and the surface of each pad is provided with two slides, and there is a movable link between the push plate and the feed chute, a shear box is provided at one end of the frame, and a rotating seat is symmetrically provided on the surface of the shear box, a rotatable seat is provided above the rotating seat, and a rotatably connected telescopic rod is provided above the rotating seat, and a shear knife is provided at one end of the telescopic rod. Although this utility model improves production efficiency, it is difficult to ensure accuracy when cutting complex patterns. There is also a problem of material waste, which increases production costs.

[0005] Therefore, the utility model proposes a leather cutting machine for producing leather shoe uppers, which is used to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a leather cutting machine for producing leather shoe uppers, which is used to solve the problems in the prior art of difficulty in ensuring accuracy when cutting complex patterns, low leather utilization rate, and increased production costs.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] The top end of the piston rod of the pressing cylinder is connected to the piston rod of the pressing cylinder, and the lower end of the piston rod of the pressing cylinder is connected to the piston rod of the pressing cylinder. The piston rod of the pressing cylinder is connected to the piston rod of the pressing cylinder through the piston rod of the pressing cylinder. The piston rod of the pressing cylinder is connected to the piston rod of the pressing cylinder

[0009] By adopting the above technical solution, the die-cutting tool can be designed according to the actual needs of the shoe upper, accurately calculating the shape and size of the required leather sheets, reducing the generation of leather waste, significantly improving the utilization rate of leather, and reducing the company's production costs.

[0010] Furthermore, a through slot is provided on the material placing plate, a connecting plate is connected to the position of the material placing plate corresponding to the through slot, a plurality of blanking holes are evenly provided on the connecting plate, and a material receiving slot is provided at the lower end of the machine body corresponding to the through slot.

[0011] By adopting the above technical solution, waste materials generated during the cutting process can fall into the material receiving box through the drop holes on the connecting plate.

[0012] Furthermore, a material receiving box is slidably connected in the material receiving trough, and a handle is connected to the end of the material receiving box.

[0013] By adopting the above technical solution, waste materials fall into the receiving box through the drop holes on the connecting plate, and then the receiving box is slid out of the receiving trough by pulling the handle on the receiving box, which is convenient for unified cleaning.

[0014] Furthermore, a vacuum cleaner is connected to one side of the machine body, the material receiving trough is connected to the vacuum cleaner through a dust suction pipe, the material receiving box is provided with a placement slot corresponding to the dust suction pipe, and the end of the dust suction pipe is connected to a filter.

[0015] By adopting the above technical solution, dust and debris generated during the cutting process can be reduced, avoiding impact on the working environment.

[0016] Furthermore, the fixing component includes a connecting frame, which is fixedly connected to the machine body. A pressing roller is rotatably connected to the connecting frame, and a second drive motor drives the pressing roller to rotate. The second drive motor is fixedly connected to the connecting frame, and anti-slip grooves are evenly provided on the pressing roller.

[0017] By adopting the above technical solution, the roller can press and position the two ends of the leather. The anti-slip grooves on the pressing roller can increase the friction between the leather material and ensure its accurate position, ensuring that the leather will not move during the cutting process.

[0018] Furthermore, two sets of conveying devices are symmetrically connected to both sides of the material placing plate, and the conveying devices are flush with the upper surface of the material placing plate.

[0019] By adopting the above technical solution, the leather is conveyed along the conveying device and conveyed to the bottom of the die-cutting tool, while ensuring the flatness of the leather material, and then pressed.

[0020] Furthermore, the die-cutting tool is detachably connected to the connection box, and the ejector plate is detachably connected to the linear motor.

[0021] By adopting the above technical solution, the maintenance and replacement of die-cutting tools are facilitated, making it convenient and quick to replace die-cutting tools of different shapes and sizes. It can adapt to the production needs of leather shoe uppers of different styles and meet the diverse needs of leather shoe uppers for cutting shapes. It improves the flexibility and accuracy of cutting and can easily cut complex shapes of shoe uppers.

[0022] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The utility model can select appropriate die-cutting tools and top-feeding plates according to the needs of the shoe upper design, and install them at the lower end of the connecting box and inside the connecting box. Then, the die-cutting tools can be designed according to the actual needs of the shoe upper, and the shape and size of the required leather sheets can be accurately calculated, thereby reducing the generation of leather waste, significantly improving the utilization rate of leather, and reducing the production cost of the enterprise.

[0024] 2. This utility model provides stable downward pressure through the cylinder, allowing the die-cutting tool to maintain close contact with the leather material during the cutting process, thereby improving cutting precision and accuracy. The foot valve eliminates manual operation by the operator, improving work efficiency. After cutting, the lifting plate presses the leather material downward, thereby precisely lifting the cut leather material, preventing the leather material from being embedded in the die-cutting tool, further improving cutting precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1It is a vertical schematic diagram of the utility model;

[0026] Figure 2 This is the main view of the utility model;

[0027] Figure 3 This is a schematic diagram of the main cross-section of the present utility model;

[0028] Figure 4 It is a top view of the utility model;

[0029] Figure 5 It is a right side view of the utility model;

[0030] In the figure: 1. Machine body; 2. Pressing cylinder; 3. Foot valve; 4. Air pump; 5. Connecting box; 6. Die-cutting tool; 7. Ejector plate; 8. Linear motor; 9. Loading plate; 10. Sliding block; 11. Sliding groove; 12. Screw; 13. First drive motor; 14. Connecting frame; 15. Pressing roller; 16. Second drive motor; 17. Anti-slip groove; 18. Conveying device; 19. Through groove; 20. Connecting plate; 21. Dropping hole; 22. Receiving trough; 23. Receiving box; 24. Handle; 25. Vacuum cleaner; 26. Dust suction pipe; 27. Placement trough; 28. Filter. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are 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 making creative efforts shall fall within the scope of protection of the present invention.

[0032] In this application, terms such as "upper," "inner," "outer," and "middle" indicate positions or locations based on those shown in the accompanying drawings. These terms are intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to specific positions, or to their construction or operation in a specific position.

[0033] like Figure 1 As shown, a leather cutting machine for producing leather shoe uppers includes a body 1, two pressing cylinders 2 are symmetrically connected to the upper end of the body 1, and a foot valve 3 is provided at the lower end of the body 1. The pressing cylinders 2 are connected to an air pump 4 through the foot valve 3;

[0034] like Figure 2 and Figure 3As shown, the lower end of the piston rod of the pressing cylinder 2 is connected to a connecting box 5, the lower end of which is connected to a die-cutting tool 6. A top plate 7 is slidably connected inside the connecting box 5, and the top plate 7 is in contact with the die-cutting tool 6. The upper end of the connecting box 5 is connected to a linear motor 8, and the lower end of the linear motor 8 is connected to the top plate 7. The die-cutting tool 6 is detachably connected to the connecting box 5, and the top plate 7 is detachably connected to the linear motor 8. Then, according to the needs of the upper design, a suitable die-cutting tool 6 and top plate 7 are selected and installed at the lower end of the connecting box 5 and inside the connecting box 5, which facilitates the maintenance and replacement of the die-cutting tool 6, making it convenient and quick to replace die-cutting tools 6 of different shapes and sizes, and can meet the production needs of different styles of leather shoe uppers. It meets the diverse needs of leather shoe uppers for cutting shapes, improves the flexibility and accuracy of cutting, and can easily cut complex shapes of the upper.

[0035] The operator then steps on foot valve 3, activating air pump 4, which supplies compressed air to pressure cylinder 2 through foot valve 3. The piston rod of pressure cylinder 2 moves downward under the action of air pressure, driving connecting box 5 and die-cutting tool 6 downward together. Die-cutting tool 6 then cuts the leather to the preset shape and size. The stable downward pressure provided by pressure cylinder 2 ensures that die-cutting tool 6 maintains close contact with the leather material during the cutting process, thereby improving cutting precision and accuracy. Foot valve 3 eliminates manual operation by the operator, increasing work efficiency.

[0036] After the cutting is completed, the operator releases the foot valve 3, and the air pump 4 stops supplying air to the pressing cylinder 2. The piston rod of the pressing cylinder 2 drives the die-cutting tool 6 to rise and reset. At the same time, the linear motor 8 starts to work, driving the ejector plate 7 to move downward. The ejector plate 7 then presses the leather material downward. This accurately lifts the cut leather material, preventing the leather material from being embedded in the die-cutting tool 6, further improving the cutting accuracy.

[0037] like Figure 3-5As shown, the lower end of the die-cutting tool 6 is provided with a material loading plate 9, the bottom of which is connected to a sliding block 10, and the body 1 is provided with a sliding groove 11 corresponding to the sliding block 10. A screw 12 is threadedly connected to the sliding block 10, and the screw 12 is rotatably connected to the body 1. The first drive motor 13 drives the screw 12 to rotate, and the first drive motor 13 is fixedly connected to the body 1; then the first drive motor 13 drives the drive screw 12 to rotate, and then drives the sliding block 10 to slide in the sliding groove 11, thereby adjusting the position of the material loading plate 9, removing the cut leather material, and performing subsequent processing and assembly. A through groove 19 is provided on the material loading plate 9, and a connecting plate 20 is connected to the position of the material loading plate 9 corresponding to the through groove 19. The connecting plate 20 is evenly provided with multiple blanking holes 21, and a material receiving trough 22 is provided at the lower end of the body 1 corresponding to the through groove 19. A material receiving box 23 is slidably connected to the receiving trough 22, and a handle 24 is connected to the end of the receiving box 23. A vacuum cleaner 25 is connected to one side of the machine body 1. The material receiving trough 22 is connected to the vacuum cleaner 25 via a dust suction pipe 26. The material receiving box 23 has a receiving slot 27 corresponding to the dust suction pipe 26, and a filter 28 is connected to the end of the dust suction pipe 26. During the cutting process, the vacuum cleaner 25 sucks in dust and debris generated through the dust suction pipe 26. Some waste material falls into the material receiving box 23 through the drop-out hole 21 on the connecting plate 20. The material receiving box 23 can then be pulled out of the material receiving trough 22 by pulling the handle 24 on the material receiving box 23, facilitating unified cleaning. This reduces the dust and debris generated during the cutting process and prevents any impact on the working environment.

[0038] Two sets of fixed components are symmetrically connected to both ends of the stocking plate 9. The fixed components include a connecting frame 14, which is fixedly connected to the machine body 1. A pressing roller 15 is rotatably connected to the connecting frame 14. A second drive motor 16 drives the pressing roller 15 to rotate. The second drive motor 16 is fixedly connected to the connecting frame 14. Anti-slip grooves 17 are evenly arranged on the pressing roller 15. Two sets of conveying devices 18 are symmetrically connected to both sides of the stocking plate 9. The conveying devices 18 are flush with the upper surface of the stocking plate 9. The leather material to be cut is then placed on the stocking plate 9. The second drive motor 16 drives the pressing roller 15 to rotate. The leather is conveyed along the conveying device 18 and conveyed to the bottom of the die-cutting tool 6. At the same time, the flatness of the leather material is ensured. The pressing roller 15 then presses and positions the two ends of the leather. The anti-slip grooves 17 on the pressing roller 15 can increase the friction between the leather material and the pressing roller, ensuring its accurate position and ensuring that the leather does not move during the cutting process.

[0039] The working process of this utility model is:

[0040] First, based on the design requirements of the upper, an appropriate die-cutting tool 6 and ejector plate 7 are selected and installed at the lower end of and within the connecting box 5. The leather material to be cut is then placed on the loading plate 9. A second drive motor 16 then drives the pressing roller 15 to rotate, which in turn conveys the leather along the conveyor 18 to the underside of the die-cutting tool 6. The pressing roller 15 then presses and positions the leather at both ends. The anti-slip grooves 17 on the pressing roller 15 increase friction with the leather material, ensuring accurate positioning and preventing movement during the cutting process.

[0041] Then the operator steps on the foot valve 3 with his foot, and the air pump 4 starts working, supplying compressed air to the pressing cylinder 2 through the foot valve 3. The piston rod of the pressing cylinder 2 moves downward under the action of air pressure, driving the connecting box 5 and the die-cutting tool 6 to descend together. The die-cutting tool 6 cuts the leather according to the preset shape and size.

[0042] After the cutting is completed, the operator releases the foot valve 3, the air pump 4 stops supplying air to the pressing cylinder 2, and the piston rod of the pressing cylinder 2 drives the die-cutting tool 6 to rise and reset. At the same time, the linear motor 8 starts working, driving the ejector plate 7 to move downward, and then the ejector plate 7 presses the leather material downward.

[0043] During the cutting process, the vacuum cleaner 25 sucks in the generated dust and debris through the vacuum tube 26, and some waste materials fall into the receiving box 23 through the drop hole 21 on the connecting plate 20. Then, by pulling the handle 24 on the receiving box 23, the receiving box 23 is slid out of the receiving trough 22 for subsequent cleaning and processing.

[0044] Then the first drive motor 13 drives the drive screw 12 to rotate, and then drives the sliding block 10 to slide in the sliding groove 11, so as to adjust the position of the material loading plate 9, take out the cut leather material, and perform subsequent processing and assembly.

Claims

1. A leather cutting machine for producing uppers of leather shoes, comprising a machine body (1), characterized in that: The upper end of the machine body (1) is symmetrically connected to two pressing cylinders (2), and the lower end of the machine body (1) is provided with a foot valve (3), and the pressing cylinders (2) are connected to the air pump (4) through the foot valve (3); the lower end of the piston rod of the pressing cylinder (2) is connected to a connecting box (5), the lower end of the connecting box (5) is connected to a die-cutting tool (6), and a top plate (7) is slidably connected in the connecting box (5), and the top plate (7) is matched with the die-cutting tool (6); the upper end of the connecting box (5) is connected to a linear motor (8), and the lower end of the linear motor (8) is connected to the top plate (7); A material placement plate (9) is provided at the lower end of the die-cutting tool (6), a sliding block (10) is connected to the bottom of the material placement plate (9), a sliding groove (11) is provided on the machine body (1) corresponding to the sliding block (10), a screw rod (12) is threadedly connected to the sliding block (10), the screw rod (12) is rotatably connected to the machine body (1), a first drive motor (13) drives the screw rod (12) to rotate, and the first drive motor (13) is fixedly connected to the machine body (1); two sets of fixed components are symmetrically connected to the two ends of the material placement plate (9).

2. A leather cutting machine for producing leather shoe uppers according to claim 1, characterized in that: The material placement plate (9) is provided with a through slot (19), the material placement plate (9) is connected to a connecting plate (20) at a position corresponding to the through slot (19), the connecting plate (20) is evenly provided with a plurality of blanking holes (21), and the machine body (1) is provided with a material receiving slot (22) at a lower end corresponding to the through slot (19).

3. The leather cutting machine for producing leather shoe uppers according to claim 2, characterized in that: A material receiving box (23) is slidably connected in the material receiving trough (22), and a handle (24) is connected to the end of the material receiving box (23).

4. The leather cutting machine for producing leather shoe uppers according to claim 3, characterized in that: A dust collector (25) is connected to one side of the machine body (1); the material receiving trough (22) is connected to the dust collector (25) via a dust suction pipe (26); the material receiving box (23) is provided with a placement groove (27) corresponding to the dust suction pipe (26); and a filter screen (28) is connected to the end of the dust suction pipe (26).

5. The leather cutting machine for producing leather shoe uppers according to claim 1, characterized in that: The fixing assembly includes a connecting frame (14), the connecting frame (14) is fixedly connected to the machine body (1), a pressing roller (15) is rotatably connected to the connecting frame (14), a second driving motor (16) drives the pressing roller (15) to rotate, the second driving motor (16) is fixedly connected to the connecting frame (14), and the pressing roller (15) is evenly provided with anti-slip grooves (17).

6. The leather cutting machine for producing leather shoe uppers according to claim 1, characterized in that: Two groups of conveying devices (18) are symmetrically connected to both sides of the material placement plate (9), and the conveying devices (18) are flush with the upper surface of the material placement plate (9).

7. The leather cutting machine for producing leather shoe uppers according to claim 1, characterized in that: The die-cutting tool (6) is detachably connected to the connection box (5), and the ejector plate (7) is detachably connected to the linear motor (8).

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