Automatic leather processing equipment applied to leather shoes

Abstract

The automatic leather processing equipment comprises a processing table, conveying roller assemblies are arranged at the two ends of the processing table, a punching mechanism is arranged in the middle of the processing table, a guide assembly is arranged on the processing table and located on one side of the punching mechanism, and a discharging mechanism is arranged on the processing table and located on the other side of the punching mechanism; a mounting groove is formed in the surface of the machining table, a discharging channel which is obliquely arranged downwards is arranged at the lower end of one side of the mounting groove, and a material taking opening communicating with the discharging channel is formed in one end of the machining table; a discharging mechanism is arranged in the mounting groove and comprises a turning plate, an electric push rod and a negative pressure adsorption assembly, one end of the turning plate is hinged to the upper end of one side of the mounting groove, the two sides of the bottom of the turning plate are driven by the electric push rod hinged to the interior of the mounting groove to turn over, and the turning plate descends to guide formed leather into a discharging channel; and the overturning plate in the discharging mechanism is matched with the negative pressure adsorption assembly to adsorb and take the punched and formed leather so as to separate leather residues, automatic separation and taking are achieved, and the taking efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of shoe processing equipment technology, and in particular to an automated leather processing equipment for leather shoes. Background Technology

[0002] Leather shoes require leather uppers during production, which are cut, pieced together, and then attached to the sole. Traditional leather cutting often uses molds and stamping equipment. Pre-designed steel or aluminum molds, under hydraulic or mechanical pressure, cut the leather into shape in a single pass. Currently, the stamping and cutting method involves manually placing the mold on a single piece of leather, adjusting the mold position after cutting, and then stamping again. This manual, piece-by-piece cutting method is inefficient. Existing technology: CN202410469327.7 discloses a leather cutting device for shoe production. This application uses a blade to cut the leather, which is not only inefficient but also requires manual removal of individual pieces of leather. The cut marks on the worktable are shallow and difficult to distinguish, making it easy to mix leather scraps with finished leather during removal, thus affecting processing efficiency. Summary of the Invention

[0003] To address the aforementioned problems, this invention discloses an automated leather processing device for leather shoes. By optimizing the cutting scheme through computer layout, and then using a punching die to punch and shape the leather according to the layout, the punched leather is collected, thus solving the problem of low processing efficiency of existing leather cutting equipment.

[0004] The specific technical solution is as follows:

[0005] An automated leather processing device for leather shoes includes a processing table, with feeding roller assemblies for conveying leather at both ends of the processing table, a punching mechanism in the middle of the processing table, a guide assembly for controlling the position of the leather on one side of the punching mechanism on the processing table, and an unloading mechanism for separating the punched leather on the other side of the processing table.

[0006] The processing table surface has a rectangular mounting groove on one side of the punching device. A downwardly oriented unloading channel is located at the lower end of one side of the mounting groove, and a material inlet connected to the unloading channel is located at one end of the processing table. The unloading mechanism is installed in the mounting groove. The unloading mechanism includes a flap, an electric actuator, and a negative pressure adsorption assembly. One end of the flap is hinged to the upper end of the other side of the mounting groove. The bottom sides of the flap are driven to flip by the electric actuator hinged in the mounting groove, so that when the flap rises, it closes the upper end of the mounting groove, or when the flap descends, it guides the shaped leather into the unloading channel. The flip plate has several through holes arranged in a uniform matrix. At the bottom of the flip plate, a negative pressure adsorption component for adsorbing shaped leather is installed at each through hole. The negative pressure adsorption component includes an insert tube, a solenoid valve, a hose, and an air extraction tube. The insert tubes are respectively embedded in each through hole from bottom to top. The bottom of each insert tube is connected to a solenoid valve. The solenoid valves are divided into several groups. The solenoid valves in each group are arranged horizontally. The bottom of each group of solenoid valves is connected to a horizontally arranged hose. One end of the hoses is connected to the air extraction tube, which is connected to an external negative pressure air source.

[0007] It also includes a computer control system that is electrically connected to the feed roller assembly, the punching device, the guide assembly, and each solenoid valve.

[0008] Preferably, the punching mechanism includes a displacement bracket, a first displacement module, a second displacement module, and a punching device. The displacement bracket is horizontally arranged on the processing table. Both ends of the displacement bracket are movably arranged on the processing table via the first displacement module and move along the length of the processing table. A displacement block is horizontally movably arranged on the top of the displacement bracket via the second displacement module. The punching device is arranged on the displacement block. The punching device includes a drive cylinder, a mounting plate, a rotary motor, a rotary seat assembly, and a punching die. The drive cylinder is arranged on the displacement block. The mounting plate is arranged below the displacement bracket and is driven to rise and fall by the drive cylinder. A rotary seat assembly is rotatably arranged at the bottom of the mounting plate. The rotary seat assembly is driven to rotate by a rotary motor arranged on one side of the mounting plate. The punching die is arranged at the bottom of the rotary seat assembly.

[0009] Preferably, the displacement bracket has a horizontally open long slot, the bottom end of the piston rod of the drive cylinder is connected to a drive rod, the drive rod passes through the displacement block and the slot longitudinally and is connected and fixed to the top of the mounting plate; the top of the mounting plate has guide rods on both sides longitudinally, the upper ends of the two guide rods pass through the slot and through both sides of the displacement block, so that the mounting plate is guided by the guide rods.

[0010] Preferably, the rotating base assembly includes a fixed plate and a rotating plate. The fixed plate is fixedly connected to the bottom of the mounting plate by longitudinally arranged connecting rods on both sides. A circular hole is opened in the center of the fixed plate. The rotating plate is arranged at the bottom of the fixed plate. The stamping die is arranged at the bottom of the rotating plate. A rotating shaft is arranged at the center of the top of the rotating plate and passes through the circular hole. The upper end of the rotating shaft is rotatably arranged at the bottom of the mounting plate by a rotating base. The rotating shaft is connected to the output shaft of the rotary motor by a transmission wheel and a transmission belt, so that the rotary motor drives the rotating plate and the stamping die to rotate.

[0011] Preferably, each of the conveying roller assemblies includes a support, a conveying roller, and a drive motor. The supports are respectively disposed on both sides of the processing table, and two longitudinally distributed conveying rollers are rotatably disposed between the supports. The conveying rollers are driven to rotate by the drive motor, so that the two conveying rollers cooperate to convey the leather.

[0012] Preferably, the guiding assembly includes a positioning plate, a threaded block, a lead screw, and a servo motor. Two positioning plates are distributed on both sides of the machining table surface. A long, narrow movable groove is horizontally formed on each side of the machining table surface at the location of the two positioning plates. A lead screw is horizontally arranged in each of the two movable grooves, with opposite thread directions. A threaded block is threaded onto each of the two lead screws, and the threaded blocks are guided through the movable grooves. The tops of the two threaded blocks are longitudinally connected to the positioning plates. Adjacent ends of the two lead screws horizontally penetrate the movable grooves and are connected to each other. One end of one lead screw is driven to rotate by a servo motor mounted on the side wall of the machining table. This causes the servo motor to drive both lead screws to rotate, and under the action of the threads, the two positioning plates move synchronously towards the center or sides of the machining table.

[0013] The beneficial effects of this invention are reflected in:

[0014] (1) The leather cutting scheme is optimized by using a computer typesetting system, and then the leather is punched and shaped according to the typesetting by the punching die, thereby realizing automated punching and greatly improving the leather processing efficiency.

[0015] (2) The flip plate in the unloading mechanism, together with the negative pressure adsorption component, adsorbs and picks up the punched leather to remove the leather residue. The position of the formed leather and the residual leather on the flip plate is determined by the computer layout, thereby controlling the opening or closing of the electromagnetic valve at the corresponding position, so as to smoothly remove the formed leather, realize automatic separation and picking, and improve the picking efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention.

[0017] Figure 2 This is a side sectional view of the present invention.

[0018] Figure 3 This is a schematic diagram of the unloading mechanism in operation according to the present invention.

[0019] Figure 4 This is a partially enlarged schematic diagram of the punching mechanism in this invention.

[0020] Figure 5 This is a schematic diagram of the unloading mechanism in this invention.

[0021] Explanation of reference numerals in the attached drawings: processing table 1, mounting slot 101, unloading channel 102, material inlet 103, movable slot 104;

[0022] 2. Feeding roller assembly; 21. Support; 22. Conveying roller; 23. Drive motor;

[0023] 3. Punching mechanism, 31. Displacement bracket, 311. Slot, 32. First displacement module, 33. Second displacement module, 34. Displacement block, 35. Punching device, 36. Drive cylinder, 37. Mounting plate, 371. Guide rod, 38. Rotary motor, 39. Rotary seat assembly, 391. Fixed plate, 392. Rotary plate, 393. Rotating shaft, 394. Punching die, 395.

[0024] 4. Unloading mechanism, 41. Flip plate, 411. Through hole, 42. Electric push rod, 43. Insert tube, 44. Solenoid valve, 45. Hose, 46. Air extraction pipe, 47. Support block;

[0025] Guide component 5, positioning plate 51, threaded block 52, lead screw 53, servo motor 54. Detailed Implementation

[0026] To make the technical solution of this invention clearer and more explicit, the invention will be further described below with reference to the accompanying drawings. Any solution derived by equivalent substitution and conventional reasoning of the technical features of this invention falls within the protection scope of this invention. The fixed connections and fixed installations mentioned in this invention are all common connection methods in the mechanical field, including welding, bolt and nut connections, and screw connections.

[0027] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] Please see the appendix Figure 1-5This embodiment provides an automated leather processing equipment for leather shoes, including a processing table 1. Both ends of the processing table are equipped with feed roller assemblies 2 for conveying leather. The feed roller assembly at the front end of the processing table is used to convey complete leather materials, and the feed roller assembly at the rear end of the processing table is used to pull and convey leather scrap strips to ensure that the leather material can move forward as a whole to meet the punching processing requirements. A punching mechanism 3 is provided in the middle of the processing table 1. A guide assembly 5 is provided on one side of the punching mechanism 3 on the processing table to control the position of the leather to prevent the leather from deviating. An unloading mechanism 4 is provided on the other side of the punching mechanism 3 on the processing table for separating the punched leather.

[0029] A rectangular mounting groove 101 is provided on the surface of the processing table 1 on one side of the punching device 35. A downwardly inclined unloading channel 102 is provided at the lower end of one side of the mounting groove 101, and a material receiving port 103 connected to the unloading channel 102 is provided at one end of the processing table. The unloading mechanism 4 is provided in the mounting groove 101. The unloading mechanism 4 includes a flap 41, an electric push rod 42, and a negative pressure adsorption assembly. One end of the flap 41 is hinged to the upper end of the other side of the mounting groove 101. The bottom two sides are driven to flip by electric push rods 42 hinged in the mounting groove 101, so that the flip plate 41 rises and closes the upper end of the mounting groove 101, and the surface of the flip plate 41 is flush with the surface of the processing table; the bottom end of the mounting groove 101 is provided with a support block 47 for supporting the flip plate 41 at one end of the unloading channel 102, so that the flip plate 41 falls and presses against the support block 47, thereby guiding the shaped leather into the unloading channel 102, so that the finished leather material can be taken out by the material outlet 103.

[0030] The flap 41 has several through holes 411 arranged in a uniform matrix. At the bottom of the flap 41, a negative pressure adsorption component for adsorbing molded leather is installed at each through hole 411. The negative pressure adsorption component includes an insert tube 43, an electromagnetic valve 44, a hose 45, and an air extraction tube 46. The insert tubes 43 are respectively embedded in each through hole 411 from bottom to top. Each insert tube 43 is connected to a electromagnetic valve 44 at its bottom. The electromagnetic valves 44 are divided into several groups. The electromagnetic valves 44 in each group are arranged horizontally. The bottom of each group of electromagnetic valves 44 is connected to a horizontally arranged hose 45. One end of each hose 45 is closed. The other end of each hose 45 is connected to an air extraction tube 46 through a connector tube. The air extraction tube 46 is connected to an external negative pressure air source.

[0031] The processing equipment also includes a computer control system, which is electrically connected to the feed roller assembly, the punching device 35, the guide assembly 5, and each solenoid valve 44. The computer control system is used for layout design; the layout system is existing technology and will not be described in detail here. Before punching, the leather width value is input, and then the guide assembly 5 is controlled to limit the leather on both sides to prevent it from deviating. Then, the punching device 35 is controlled to punch at the designated position on the leather according to the layout. Furthermore, based on the layout, the computer control system determines the positions of the formed leather and residual leather on the flip plate 41, thereby controlling the opening or closing of the solenoid valves 44 at the corresponding positions, thus controlling the negative pressure adsorption assembly to adsorb and pick up the formed leather.

[0032] In this embodiment, the punching mechanism 3 includes a displacement bracket 31, a first displacement module 32, a second displacement module 33, and a punching device 35. The displacement bracket 31 is horizontally arranged on the processing table 1. Both ends of the displacement bracket 31 are movably arranged on the processing table through the first displacement module 32 and move along the length direction of the processing table. A displacement block 34 is horizontally movably arranged on the top of the displacement bracket 31 through the second displacement module 33. The punching device 35 is arranged on the displacement block 34. The punching device 35 includes a drive cylinder 36, a mounting plate 37, a rotary motor 38, a rotary seat assembly 39, and a punching die 394. The drive cylinder 36 is arranged on the displacement block 34. The mounting plate 37 is arranged below the displacement bracket 31 and is driven to rise and fall by the drive cylinder 36. The rotary seat assembly 39 is rotatably arranged at the bottom of the mounting plate 37. The rotary seat assembly 39 is driven to rotate by the rotary motor 38 arranged on one side of the mounting plate 37. The punching die 394 is arranged at the bottom of the rotary seat assembly 39.

[0033] In this embodiment, a long slot 311 is horizontally opened on the displacement bracket 31. The bottom end of the piston rod of the drive cylinder 36 is connected to a drive rod. The drive rod passes through the displacement block 34 and the slot 311 longitudinally and is connected and fixed to the top of the mounting plate 37. Guide rods 371 are longitudinally provided on both sides of the top of the mounting plate 37. The upper ends of the two guide rods 371 pass through the slot 311 and through both sides of the displacement block 34, so that the mounting plate 37 is guided by the guide rods 371.

[0034] In this embodiment, the rotating seat assembly 39 includes a fixed plate 391 and a rotating plate 392. The fixed plate 391 is fixedly connected to the bottom of the mounting plate 37 by longitudinally arranged connecting rods 395 on both sides. A circular hole is opened in the center of the fixed plate 391. The rotating plate 392 is arranged at the bottom of the fixed plate 391. A stamping die is arranged at the bottom of the rotating plate 392. A rotating shaft is provided at the center of the top of the rotating plate 392 and passes through the circular hole. The upper end of the rotating shaft is rotatably arranged at the bottom of the mounting plate 37 through a rotating seat. The rotating shaft is connected to the output shaft of the rotary motor 38 through a transmission wheel and a transmission belt, so that the rotary motor 38 drives the rotating plate 392 and the stamping die to rotate, thereby using the stamping die to stamp on the leather to form individual shaped leather pieces.

[0035] In this embodiment, each of the feeding roller assemblies 2 includes a support 21, a feeding roller 22, and a drive motor 23. The support 21 is respectively disposed on both sides of the processing table. Two longitudinally distributed feeding rollers 22 are rotatably disposed between the support 21. The feeding rollers 22 are driven to rotate by the drive motor 23, so that the two feeding rollers 22 cooperate to feed the leather.

[0036] In this embodiment, the guide assembly 5 includes a positioning plate 51, a threaded block 52, a lead screw 53, and a servo motor 54. There are two positioning plates 51 distributed on both sides of the processing table surface. A long strip-shaped movable groove 104 is horizontally opened on both sides of the processing table surface at the positions of the two positioning plates 51. A lead screw 53 is horizontally arranged in each of the two movable grooves 104. The threads of the two lead screws 53 are opposite. A threaded block 52 is threadedly connected to each of the two lead screws 53. The threaded blocks 52 are guided through the movable grooves 104. The tops of the two threaded blocks 52 are vertically connected to the positioning plates 51. The adjacent ends of the two lead screws 53 are horizontally inserted through the movable grooves 104 and connected to each other. One end of one lead screw 53 is driven to rotate by the servo motor 54 set on the side wall of the processing table 1, so that the servo motor 54 drives the two lead screws 53 to rotate, and under the action of the threads, the two positioning plates 51 move synchronously towards the center or sides of the processing table. The servo motor 54 is connected to the computer control system. The computer control system controls the number of rotations of the output shaft of the servo motor 54 according to the width of the leather, so that the two positioning plates 51 are close to the sides of the leather material to prevent the leather from deviating.

[0037] Working principle: Before punching, the leather material is sequentially fed into two feed roller assemblies 2. The width of the leather material is then input into the computer control system, followed by a manual layout design. The computer control system then controls the punching mechanism 3 to punch the leather material sequentially according to the layout. After punching, the feed roller assemblies convey the leather material forward a distance, allowing the punched and shaped leather to move onto the flip plate 41 as a whole. During this movement, due to the resistance of the processing table, some of the shaped leather separates from the main body of the leather material, while another portion remains intact due to edge friction and cannot pass through the flip plate 41. Force separation occurs, and then the computer control system determines the positions of the formed leather and residual leather on the flip plate 41 according to the layout. It controls the opening of the electromagnetic valve 44 at the position of the formed leather, thereby using the negative pressure air source to adsorb the formed leather through the through hole 411. Then, the electric push rod drives the flip plate 41 to flip downward, so that the formed leather and the leather material are separated as a whole. During the flip plate 41 flipping process, all electromagnetic valves 44 close and stop adsorbing the formed leather. After the flip plate 41 descends, it collides with the support block 47, so that the formed leather material is guided by the flip plate 41 and falls directly into the unloading channel 102. Finally, the material is picked up at the picking port 103.

[0038] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An automated leather processing device for leather shoes, comprising a processing table (1), wherein both ends of the processing table are provided with feed roller assemblies (2) for conveying leather, characterized in that, The processing table (1) is provided with a punching mechanism (3) in the middle. A guide component (5) for controlling the position of the leather is provided on one side of the punching mechanism (3) on the processing table (1). A unloading mechanism (4) for separating the punched leather is provided on the other side of the punching mechanism (3) on the processing table (1). The surface of the processing table (1) is provided with a rectangular mounting groove (101) on one side of the punching device (35). The lower end of one side of the mounting groove (101) is provided with an inclined unloading channel (102), and one end of the processing table is provided with a material inlet (103) connected to the unloading channel (102). The unloading mechanism (4) is provided in the mounting groove (101). The unloading mechanism (4) includes a flip plate (41), an electric push rod (42), and a negative pressure adsorption assembly. One end of the flip plate (41) is hinged to the upper end of the other side of the mounting groove (101). The bottom sides of the flip plate (41) are driven to flip by the electric push rod (42) hinged in the mounting groove (101), so that the flip plate (41) rises and closes the upper end of the mounting groove (101), or the flip plate (41) falls and guides the molded leather to the unloading channel (103). 2) The flap (41) has several through holes (411) arranged in a uniform matrix. The bottom of the flap (41) is equipped with a negative pressure adsorption component for adsorbing shaped leather at each through hole (411). The negative pressure adsorption component includes an insert tube (43), an electromagnetic valve (44), a hose (45) and an air extraction tube (46). The insert tube (43) is embedded in each through hole (411) from bottom to top. The bottom of each insert tube (43) is connected to an electromagnetic valve (44). The electromagnetic valves (44) are divided into several groups. The electromagnetic valves (44) in each group are arranged in a horizontal direction. The bottom of each group of electromagnetic valves (44) is connected to a horizontally arranged hose (45). One end of the hoses (45) is connected to the air extraction tube (46). The air extraction tube (46) is connected to an external negative pressure air source. It also includes a computer control system that is electrically connected to the feed roller assembly (2), the punching device (35), the guide assembly (5), and each solenoid valve (44).

2. The automated leather processing equipment for leather shoes as described in claim 1, characterized in that, The punching mechanism (3) includes a displacement bracket (31), a first displacement module (32), a second displacement module (33), and a punching device (35). The displacement bracket (31) is horizontally arranged on the processing table (1). Both ends of the displacement bracket (31) are movably arranged on the processing table through the first displacement module (32) and move along the length of the processing table. A displacement block (34) is horizontally movably arranged on the top of the displacement bracket (31) through the second displacement module (33). The punching device (35) is arranged on the displacement block (34). The punching device (35) includes a drive cylinder ( 36) Mounting plate (37), rotary motor (38), rotary seat assembly (39), punching die (394), the drive cylinder (36) is set on the displacement block (34), the mounting plate (37) is set below the displacement bracket (31), and the mounting plate (37) is driven to lift and lower by the drive cylinder (36). The bottom of the mounting plate (37) is rotatably provided with the rotary seat assembly (39), and the rotary seat assembly (39) is driven to rotate by the rotary motor (38) set on one side of the mounting plate (37). The bottom of the rotary seat assembly (39) is provided with the punching die (394).

3. The automated leather processing equipment for leather shoes as described in claim 2, characterized in that, The displacement bracket (31) has a long slot (311) opened horizontally. The piston rod of the drive cylinder (36) is connected to a drive rod at the bottom. The drive rod passes through the displacement block (34) and the slot (311) longitudinally and is connected and fixed to the top of the mounting plate (37). The top two sides of the mounting plate (37) are provided with guide rods (371) longitudinally. The upper ends of the two guide rods (371) pass through the slot (311) and through both sides of the displacement block (34), so that the mounting plate (37) is guided by the guide rods (371).

4. The automated leather processing equipment for leather shoes as described in claim 2, characterized in that, The rotating seat assembly (39) includes a fixed plate (391) and a rotating plate (392). The fixed plate (391) is fixedly connected to the bottom of the mounting plate (37) by longitudinally arranged connecting rods (395) on both sides. A circular hole is opened in the center of the fixed plate (391). The rotating plate (392) is arranged at the bottom of the fixed plate (391). The stamping die is arranged at the bottom of the rotating plate (392). A rotating shaft is arranged at the top center of the rotating plate (392) and passes through the circular hole. The upper end of the rotating shaft is rotatably arranged at the bottom of the mounting plate (37) through a rotating seat. The rotating shaft is connected to the output shaft of the rotary motor (38) through a transmission wheel and a transmission belt, so that the rotary motor (38) drives the rotating plate (392) and the stamping die to rotate.

5. The automated leather processing equipment for leather shoes as described in claim 1, characterized in that, Each of the feeding roller assemblies (2) includes a support (21), a conveying roller (22), and a drive motor (23). The support (21) is respectively set on both sides of the processing table (1). Two longitudinally distributed conveying rollers (22) are rotatably arranged between the support (21). The conveying rollers (22) are driven to rotate by the drive motor (23), so that the two conveying rollers (22) cooperate to convey the leather.

6. The automated leather processing equipment for leather shoes as described in claim 1, characterized in that, The guiding assembly (5) includes a positioning plate (51), a threaded block (52), a lead screw (53), and a servo motor (54). There are two positioning plates (51) distributed on both sides of the surface of the processing table (1). A long strip-shaped movable groove (104) is opened horizontally on both sides of the processing table surface at the positions of the two positioning plates (51). A lead screw (53) is horizontally arranged in each of the two movable grooves (104). The threads of the two lead screws (53) are opposite in direction. A threaded block is threadedly connected to each of the two lead screws (53). (52) The threaded block (52) is guided by the movable groove (104). The tops of the two threaded blocks (52) are respectively longitudinally connected to the positioning plate (51), and the two lead screws (53) are respectively horizontally penetrating the movable groove (104) and connected to each other. One end of one lead screw (53) is driven to rotate by a servo motor (54) set on the side wall of the processing table (1), so that the servo motor (54) drives the two lead screws (53) to rotate, and under the action of the thread, the two positioning plates (51) move synchronously towards the center or both sides of the processing table.

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