An upper splicing machine

Abstract

A shoe upper sewing machine, belonging to the field of shoe manufacturing equipment technology, is designed to solve the problem of the lack of limiting devices and finished product collection devices in the shoe upper sewing process. It includes a worktable, a sewing machine, and an L-shaped support structure, and achieves functional improvements through an adjustment mechanism, a pressing mechanism, and a material collection mechanism. The adjustment mechanism uses an electric push rod to drive the connecting frame, which in turn drives four moving rods to achieve vertical lifting and lowering of the pressing mechanism. The pressing mechanism is equipped with a dual-guide rail and bidirectional screw adjustment system, and the pressure roller assembly connected by a sliding plate allows for adaptive spacing adjustment of the shoe upper. The pressure roller assembly includes a rotating roller housing with an internal drive motor, realizing rotary pressing and lateral conveying. The material collection mechanism has a limiting frame at the material discharge hole of the worktable, and is equipped with a baffle-type collection box fixing structure with a torsion spring. This equipment replaces manual pressing with mechanical limiting, and, in conjunction with an automatic feeding mechanism, achieves continuous sewing. After feeding, the finished product automatically falls into a detachable collection container, effectively improving sewing accuracy and work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of shoemaking equipment technology, and in particular to a shoe upper stitching machine. Background Technology

[0002] The stitching machine is mainly suitable for various knitted and woven fabrics, from thin to medium-thick materials. Shoe uppers are usually made of leather stitching. During shoe upper processing, the shoe upper leather stitching machine is used for the stitching operation of shoe upper leather.

[0003] Current stitching machines mostly use sewing machines to stitch together shoe uppers. However, when stitching two pieces of shoe upper together, there is no corresponding limiting device, which requires manual pressing and positioning of the shoe upper during the stitching process, making it quite troublesome. Furthermore, after the beveled surface is stitched, there is no corresponding storage device, which causes the stitched leather surface to easily fall directly to the ground. Therefore, we propose a surface stitching machine to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the lack of corresponding limiting devices when splicing and sewing shoe uppers, and the inability to collect the sewn shoe uppers. Therefore, this invention proposes a shoe upper splicing machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A shoe upper stitching machine includes a worktable, a sewing machine mounted on the top of the worktable, and a material feeding hole provided on the worktable;

[0007] An L-shaped plate is fixedly connected to the top of the workbench, and L-shaped frames are fixedly connected to both sides of the L-shaped plate. The bottom of the L-shaped frames is fixedly connected to the workbench.

[0008] The top inner wall of the L-shaped plate has an insertion hole through which the sewing machine head passes;

[0009] The shoe upper stitching machine also includes:

[0010] The adjustment mechanism penetrates the inner top wall of the L-shaped plate and is slidably connected to the L-shaped plate.

[0011] The pressing mechanism, connected to the adjusting mechanism, is used to press, limit, and transmit the two shoe uppers;

[0012] The material receiving mechanism, installed on the workbench and corresponding to the material feeding hole, is used to collect the sewn shoe uppers.

[0013] Furthermore, the adjustment mechanism includes multiple moving rods, which pass through the inner wall of the top of the L-shaped plate and are slidably connected to it;

[0014] The tops of multiple movable rods are fixedly connected to connecting brackets;

[0015] Two electric push rods are installed on the top of the L-shaped plate, and the output shaft of the electric push rods is fixedly connected to the connecting frame.

[0016] The bottom ends of multiple moving rods are connected to the pressing mechanism.

[0017] Furthermore, the pressing mechanism includes two guide rails, and two sliding plates are slidably connected within the guide rails;

[0018] One side of the skateboard extends to the outside of the guide rail and is fixedly connected to the mounting plate;

[0019] A pressure roller assembly is connected between two symmetrically arranged mounting plates for pressing and conveying the shoe upper.

[0020] Furthermore, the pressure roller assembly includes a roller housing, which is rotatably connected to a mounting plate on one side;

[0021] An inner liner plate is rotatably connected inside the roller shell. A fixing rod is fixedly connected to one side of the inner liner plate. The fixing rod extends to the outside of the roller shell and is fixedly connected to the mounting plate on the other side.

[0022] A drive motor is installed on the other side of the inner lining plate. The output shaft of the drive motor is fixedly connected to the transmission shaft, and the transmission shaft is fixedly connected to the inner wall of the roller shell.

[0023] Two connecting discs are fixedly sleeved on the drive shaft, and the connecting discs are fixedly connected to the inner wall of the roller shell.

[0024] Furthermore, a bidirectional screw is rotatably connected to the bottom of the guide rail;

[0025] A movable plate is fixedly connected to one side of the mounting plate, and a nut is fixedly connected to one side of the movable plate.

[0026] The bidirectional screw passes through the two moving plates and the two nuts, and is threadedly connected to the nuts.

[0027] Furthermore, a support box is installed on the top of the workbench, and multiple support rollers are rotatably connected inside the support box;

[0028] The top of the support roller extends above the support box to support the shoe upper and reduce transmission resistance.

[0029] Furthermore, the receiving mechanism includes a limiting frame, which is fixedly connected to the inner wall of the top of the workbench and corresponds to the unloading hole;

[0030] The sliding bracket inside the limiting frame contains a collection box for collecting the sewn shoe uppers.

[0031] Furthermore, a support shaft is fixedly connected to one side of the opening of the limiting frame, and a baffle is rotatably sleeved on the support shaft;

[0032] Two torsion springs are fitted on the support shaft, with the two ends of the torsion springs fixed to the support shaft and the baffle, respectively.

[0033] The baffle remains vertical under the action of the torsion spring to limit the collection box.

[0034] The beneficial effects of this utility model are:

[0035] In this utility model, the shoe upper sewing machine can, through the adjustment mechanism, place two shoe uppers that need to be sewn together on the worktable. At this time, two electric push rods can be activated to drive the connecting frame to move downwards. Multiple moving rods can drive the pressing mechanism to move downwards, and the pressing mechanism can press and limit the two shoe uppers.

[0036] Through the pressing mechanism, the position of the pressure roller assembly can be adjusted by the sliding cooperation between the guide rail and the slide plate. The pressure roller assembly can press and drive the two shoe uppers, so that when sewing the shoe uppers with a sewing machine, the shoe uppers can be pressed, limited, and linearly driven.

[0037] Through the material receiving mechanism, the sewn shoe uppers can be moved out of the support box and fall into the collection box through the material discharge hole, so that the sewn shoe uppers can be collected. When the collection box is full, the baffle can be rotated horizontally. At this time, the two torsion springs can be in a state of tension, and the limit on the collection box can be released, so that the collection box can be taken out from the limit frame.

[0038] This invention can press and limit the shoe upper during sewing, and simultaneously drive the shoe upper to move, thereby enabling comprehensive sewing of the shoe upper. After sewing, the shoe upper can be collected to prevent it from falling to the ground, thus demonstrating good practicality in actual use. Attached Figure Description

[0039] Figure 1 This is a first-view three-dimensional structural diagram of a shoe upper stitching machine proposed in this utility model.

[0040] Figure 2 This is a three-dimensional schematic diagram of the second-view structure of a shoe upper stitching machine proposed in this utility model.

[0041] Figure 3 This is a three-dimensional schematic diagram of the connection structure of multiple moving rods, two guide rails, two rotating rollers, a connecting frame and two electric push rods of a shoe upper sewing machine proposed in this utility model.

[0042] Figure 4 This is a three-dimensional schematic diagram of the connection structure of the guide rail, slide plate, mounting plate and rotating roller of the shoe upper sewing machine proposed in this utility model;

[0043] Figure 5 This is a three-dimensional cross-sectional schematic diagram of the roller structure of a shoe upper stitching machine proposed in this utility model.

[0044] In the diagram: 1. Workbench; 2. Sewing machine; 3. Feed hole; 4. Limiting frame; 5. Collection box; 6. Support shaft; 7. Baffle; 8. Torsion spring; 9. L-shaped plate; 10. L-shaped frame; 11. Support box; 12. Support roller; 13. Moving rod; 14. Connecting frame; 15. Electric push rod; 16. Guide rail; 17. Slide plate; 18. Mounting plate; 19. Rotary roller shell; 191. Inner lining plate; 192. Drive motor; 193. Transmission shaft; 194. Connecting plate; 20. Moving plate; 21. Double-acting screw; 22. Nut. Detailed Implementation

[0045] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0046] Example 1: Refer to Figure 1-5 A shoe upper sewing machine includes a workbench 1, a sewing machine 2 mounted on top of the workbench 1, and a material feeding hole 3 on the surface of the workbench 1 for the finished shoe upper to fall. An L-shaped plate 9 is welded to the top of the workbench 1, and L-shaped frames 10 are symmetrically welded to both sides of the L-shaped plate 9. The bottom of the L-shaped frames 10 is fixedly connected to the workbench 1. An insertion hole is formed on the inner wall of the top of the L-shaped plate 9, through which the head of the sewing machine 2 passes for operation. The shoe upper sewing machine also includes an adjustment mechanism and a pressing mechanism. The adjustment mechanism penetrates the inner wall of the top of the L-shaped plate 9 and is slidably connected to the L-shaped plate 9; the pressing mechanism is connected to the adjustment mechanism and is used for pressing, limiting, and conveying the two shoe uppers.

[0047] The adjusting mechanism consists of four moving rods 13, which pass through and slide along the inner top wall of the L-shaped plate 9. A connecting frame 14 is welded to the top of each of the four moving rods 13. Two electric push rods 15 are bolted to the top of the L-shaped plate 9, and the output shafts of the electric push rods 15 are connected to the bottom of the connecting frame 14. The bottom of the moving rods 13 is connected to the pressing mechanism. When the electric push rods 15 are activated, they drive the connecting frame 14 and the moving rods 13 to move up and down, thereby controlling the lifting and lowering of the pressing mechanism.

[0048] The pressing mechanism includes two parallel guide rails 16, with two sliding plates 17 slidably mounted within each guide rail 16. One side of each sliding plate 17 extends from the guide rail 16 and is welded to a mounting plate 18. Pressure roller assemblies are mounted between the symmetrically arranged mounting plates 18. A bidirectional screw 21 is rotatably connected to the bottom of the guide rails 16. Movable plates 20 are welded to the sides of the mounting plates 18, and nuts 22 are fixed on the movable plates 20. The bidirectional screw 21 passes through the two movable plates 20 and the nuts 22; the distance between the two pressure roller assemblies can be adjusted by rotating the bidirectional screw 21.

[0049] The pressure roller assembly consists of a roller shell 19, which is rotatably connected to a mounting plate 18 on one side. An inner liner 191 is installed inside the roller shell 19, and the inner liner 191 is connected to the mounting plate 18 on the other side via a fixing rod. A drive motor 192 is mounted on the inner liner 191, and a transmission shaft 193 is welded to the output shaft of the drive motor 192. The transmission shaft 193 is connected to the inner wall of the roller shell 19. Two connecting discs 194 are welded to the transmission shaft 193, and the connecting discs 194 are fixed to the inner wall of the roller shell 19. When the drive motor 192 operates, it drives the roller shell 19 to rotate, thereby pressing and conveying the shoe upper.

[0050] The roller shell 19 can be in the following shapes to adapt to the processing requirements of different shoe upper materials:

[0051] 1. Cylindrical Roller Housing: The roller housing 19 has a smooth cylindrical structure, suitable for conveying and pressing flat leather. Its circumferential surface makes linear contact with the shoe upper, reducing the risk of indentation on soft fabrics.

[0052] 2. Grooved Roller Shell: The surface of the roller shell 19 has annular grooves (groove spacing of 5-10mm), with anti-slip rubber strips embedded in the grooves. This structure enhances the grip on thickened leather during high-speed conveying, while the groove design disperses pressure stress and prevents fabric deformation.

[0053] This application can be used in the field of shoemaking equipment technology, or in other fields applicable to this application.

[0054] Example 2: Reference Figure 1 An improvement upon Embodiment 1: A shoe upper sewing machine, applied in the field of shoe manufacturing equipment technology, includes a support box 11 mounted on the top of a workbench 1. Multiple support rollers 12 are rotatably mounted inside the support box 11, with the tops of the support rollers 12 protruding from the surface of the support box 11 to provide rolling support for the shoe upper. It also includes a material collection mechanism, mounted on the workbench 1 and corresponding to the material discharge hole 3, for collecting the sewn shoe uppers. The material collection mechanism includes a limiting frame 4 welded to the inner wall of the workbench 1, corresponding to the material discharge hole 3. A collection box 5 is slidably mounted inside the limiting frame 4. A support shaft 6 is welded to the open side of the limiting frame 4, and a rotatable baffle 7 is mounted on the support shaft 6. Two torsion springs 8 are sleeved on the support shaft 6, with their ends fixed to the support shaft 6 and the baffle 7 respectively. The baffle 7 remains vertical under the action of the torsion springs 8 to limit the collection box 5.

[0055] However, as is well known to those skilled in the art, the working principles and wiring methods of the sewing machine 2, the electric push rod 15, and the drive motor 192 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0056] Working process: First, the two shoe uppers to be sewn together are manually joined and placed on the support box. Then, the threaded transmission of the rotatable double-ended screw and the corresponding two nuts drives the two rotating roller shells to move towards each other, making the distance between the two roller shells less than the length of the shoe upper. Next, by activating two electric push rods, the connecting frame is moved downwards. At this time, multiple moving rods can drive the rotating roller shells downwards, allowing the rotating roller shells to press against the two shoe uppers, keeping the two shoe uppers in a stable position and preventing them from moving arbitrarily. Then, the drive motor is activated to drive the transmission shaft to rotate, which in turn drives the rotating roller shells to rotate. This mechanism drives the shoe upper to move laterally, and the rotating roller shell exerts downward pressure on the shoe upper, preventing the two shoe uppers from separating during movement. Simultaneously, the sewing machine is activated to sew the two shoe uppers together, ensuring complete sewing of both moving shoe uppers. The sewn shoe uppers are then removed from the support box and fall into the collection box through the feed hole, allowing for collection. When the collection box is full, the baffle can be rotated horizontally, which puts the two torsion springs under stress and releases the limit on the collection box, allowing it to be removed from the limit frame.

Claims

1. A shoe upper splicing machine, comprising a workbench (1), a sewing machine (2) is arranged on the top of the workbench (1), and a discharging hole (3) is formed in the workbench (1), characterized in that: An L-shaped plate (9) is fixedly connected to the top of the workbench (1), and L-shaped frames (10) are fixedly connected to both sides of the L-shaped plate (9). The bottom of the L-shaped frames (10) is fixedly connected to the workbench (1). An insertion hole is provided on the top inner wall of the L-shaped plate (9), and the head of the sewing machine (2) passes through the insertion hole. The shoe upper sewing machine also includes: The adjustment mechanism penetrates the top inner wall of the L-shaped plate (9) and is slidably connected to the L-shaped plate (9); The pressing mechanism, connected to the adjusting mechanism, is used to press, limit, and transmit the two shoe uppers; The material receiving mechanism is installed on the workbench (1) and corresponds to the material feeding hole (3) to collect the sewn shoe uppers.

2. The shoe upper stitching machine according to claim 1, characterized in that: The adjustment mechanism includes multiple moving rods (13), which pass through the top inner wall of the L-shaped plate (9) and are slidably connected thereto; A connecting frame (14) is fixedly connected to the top of multiple movable rods (13); Two electric push rods (15) are installed on the top of the L-shaped plate (9), and the output shaft of the electric push rods (15) is fixedly connected to the connecting frame (14); The bottom ends of multiple movable rods (13) are connected to the pressing mechanism.

3. The shoe upper stitching machine according to claim 2, characterized in that: The pressing mechanism includes two guide rails (16), and two sliding plates (17) are slidably connected inside the guide rails (16); One side of the slide (17) extends to the outside of the guide rail (16) and is fixedly connected to the mounting plate (18); A pressure roller assembly is connected between two symmetrically arranged mounting plates (18) for pressing and conveying the shoe upper.

4. The shoe upper stitching machine according to claim 3, characterized in that: The pressure roller assembly includes a roller shell (19), which is rotatably connected to a mounting plate (18) on one side; An inner liner plate (191) is rotatably connected inside the roller shell (19). A fixing rod is fixedly connected to one side of the inner liner plate (191). The fixing rod extends to the outside of the roller shell (19) and is fixedly connected to the mounting plate (18) on the other side. A drive motor (192) is installed on the other side of the inner lining plate (191). The output shaft of the drive motor (192) is fixedly connected to the transmission shaft (193). The transmission shaft (193) is fixedly connected to the inner wall of the roller shell (19). Two connecting discs (194) are fixedly sleeved on the drive shaft (193), and the connecting discs (194) are fixedly connected to the inner wall of the roller shell (19).

5. The shoe upper stitching machine according to claim 3, characterized in that: The bottom of the guide rail (16) is rotatably connected to a bidirectional screw (21); A movable plate (20) is fixedly connected to one side of the mounting plate (18), and a nut (22) is fixedly connected to one side of the movable plate (20). The bidirectional screw (21) passes through the two movable plates (20) and the two nuts (22) and is threadedly connected to the nuts (22).

6. The shoe upper stitching machine according to claim 1, characterized in that: A support box (11) is installed on the top of the workbench (1), and multiple support rollers (12) are rotatably connected inside the support box (11); The top of the support roller (12) extends above the support box (11) to support the shoe upper and reduce transmission resistance.

7. The shoe upper stitching machine according to claim 1, characterized in that: The receiving mechanism includes a limiting frame (4), which is fixedly connected to the inner wall of the top of the workbench (1) and corresponds to the discharge hole (3); The limiting frame (4) has a sliding card with a collection box (5) for collecting the sewn shoe upper.

8. The shoe upper stitching machine according to claim 7, characterized in that: The support shaft (6) is fixedly connected to the opening side of the limiting frame (4), and a baffle (7) is rotatably sleeved on the support shaft (6); Two torsion springs (8) are sleeved on the support shaft (6), and the two ends of the torsion springs (8) are fixed to the support shaft (6) and the baffle (7) respectively. The baffle (7) remains vertical under the action of the torsion spring (8) to limit the collection box (5).

Images