A mold for processing an upper face

By using an automated spraying system and a hydraulically driven mold design, the problem of low efficiency in manual spraying of release agent was solved, achieving uniform coverage of the release agent and improving the processing efficiency and quality of shoe uppers.

CN224296483UActive Publication Date: 2026-05-29RUIAN YIHUA SHOE MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RUIAN YIHUA SHOE MATERIAL CO LTD
Filing Date
2025-06-26
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In existing shoe upper processing molds, manual spraying of release agent is inefficient and uneven, resulting in low processing efficiency and high labor costs.

Method used

An automated spraying system is adopted, and the mold design controlled by servo motors and PLCs achieves uniform spraying of the release agent. Combined with the hydraulic cylinder driving the mold opening and closing, it ensures that the release agent is evenly covered in the mold groove.

Benefits of technology

It improves the efficiency of mold release agent spraying, reduces labor costs, ensures uniform coverage of mold release agent, and enhances the processing quality and efficiency of shoe uppers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of upper processing equipment, concretely to a mould for upper processing, the top of bottom die is equipped with the top seat, two first sliding slots are arranged to the symmetrical bottom die of processing table, two support rods that penetrate first sliding slot and are connected with first sliding slot sliding are arranged to the both ends of top seat, the bottom of support rod is equipped with the bottom plate, the lower extreme of processing table is equipped with the fixed plate, the middle part of fixed plate is equipped with the first motor, the output of first motor is equipped with the first screw rod that penetrates bottom plate and is connected with bottom plate screw, through the collaborative work of first motor, second motor and relevant transmission parts, the automation of release agent spraying is realized, need not manual spraying, greatly improve the spraying efficiency, reduce the artificial cost, also avoid the uneven problem that manual spraying can appear simultaneously, ensure that the release agent can evenly cover the mould groove, improve the release quality of upper.
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Description

Technical Field

[0001] This utility model relates to the technical field of shoe upper processing equipment, specifically a mold for shoe upper processing. Background Technology

[0002] Sandals consist of a sole and an upper. The upper is a plastic part that covers the instep. In existing technology, there are two methods: one-piece injection molding and another method: split injection molding followed by assembly. Specifically, the sole and upper are injection molded separately. Corresponding loops are formed on the upper and corresponding hooks are formed on the sole. After the loops and hooks are connected, the upper and sole are connected.

[0003] When using injection molds for shoe upper processing, it is usually necessary to spray release agent into the mold cavity. However, the existing spraying method is mostly manual spraying. Manual spraying is not only wasteful of manpower, but also has low spraying efficiency, which in turn reduces the processing efficiency of shoe uppers. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a mold for processing shoe uppers.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a mold for processing shoe uppers, comprising a processing table, a bottom mold at the upper end of the processing table, a mold groove on the bottom mold, a top plate above the processing table, a lifting assembly at the upper end of the top plate, a lifting rod penetrating the top plate at the output end of the lifting assembly, a top mold located above the bottom mold at the bottom end of the lifting rod, a top seat above the bottom mold, two first sliding grooves symmetrically arranged on the bottom mold on the processing table, two support rods symmetrically arranged at both ends of the top seat penetrating the first sliding grooves and slidably connected to the first sliding grooves, a bottom plate at the bottom end of the support rods, a fixing plate at the lower end of the processing table, a first motor in the middle part of the fixing plate, and a first threaded rod penetrating the bottom plate and threadedly connected to the bottom plate at the output end of the first motor;

[0008] The top seat is provided with a second sliding groove, and a slider is slidably arranged in the second sliding groove. A discharge pipe is provided on one side of the top seat, and a valve is provided on the discharge pipe. The valve is fixed to one side of the slider. A nozzle is provided at the discharge end of the discharge pipe. A second motor is provided at one end of the top seat. A second threaded rod is provided at the output end of the second motor, which is located inside the second sliding groove and passes through the slider. The second threaded rod is threadedly connected to the slider.

[0009] To facilitate assembly of the top seat, the present invention is improved in that the base plate is fixed to the bottom end of the support rod by screws, and the top seat and the support rod are an integrated structure.

[0010] To improve the stability of the top seat during movement, the present invention includes an improvement in that a guide rod is provided between the two fixed plates, penetrating both ends of the base plate, and the guide rod is slidably connected to the base plate.

[0011] To facilitate valve assembly, the present invention includes the following improvements: one side of the top seat is provided with a cavity communicating with the second slide groove, and side plates are provided on both sides of the valve. The side plates are located inside the cavity and are fixed to one side of the slider by screws.

[0012] Furthermore, the improvements of this utility model include the use of a hydraulic cylinder for the lifting assembly, and the use of servo motors for both the first motor and the second motor.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a mold for processing shoe uppers, which has the following beneficial effects:

[0015] The automated spraying of the release agent is achieved through the coordinated operation of the first motor, the second motor and related transmission components, eliminating the need for manual spraying, greatly improving spraying efficiency, reducing labor costs, and avoiding the unevenness that may occur with manual spraying. This ensures that the release agent can evenly cover the mold groove and improve the release quality of the shoe upper. Attached Figure Description

[0016] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention;

[0018] Figure 3 This utility model Figure 1 The main view;

[0019] Figure 4 This utility model Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0020] In the diagram: 1. Processing table; 2. Top plate; 3. Lifting assembly; 4. Top mold; 5. Bottom mold; 6. Mold groove; 7. Top seat; 8. First slide groove; 9. Support rod; 10. Base plate; 11. Fixing plate; 12. First motor; 13. First threaded rod; 14. Guide rod; 15. Second slide groove; 16. Valve; 17. Discharge pipe; 18. Nozzle; 19. Second threaded rod; 20. Slider; 21. Side plate; 22. Second motor. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model discloses a mold for processing shoe uppers, including a processing table 1. The upper end of the processing table 1 is provided with a bottom mold 5, and the bottom mold 5 is provided with a mold groove 6. The processing table 1 is provided with a top plate 2 above it. The upper end of the top plate 2 is provided with a lifting assembly 3. The output end of the lifting assembly 3 is provided with a lifting rod that penetrates the top plate 2. The bottom end of the lifting rod is provided with a top mold 4 located above the bottom mold 5. The bottom mold 5 is provided with a top seat 7 above it. The processing table 1 is provided with two first sliding grooves 8 symmetrically arranged on the bottom mold 5. The top seat 7 is provided with two support rods 9 symmetrically arranged at both ends that penetrate the first sliding grooves 8 and are slidably connected to the first sliding grooves 8. The bottom end of the support rods 9 is provided with a bottom plate 10. The lower end of the processing table 1 is provided with a fixing plate 11. The middle part of the fixing plate 11 is provided with a first motor 12. The output end of the first motor 12 is provided with a first threaded rod 13 that penetrates the bottom plate 10 and is threadedly connected to the bottom plate 10.

[0023] The top seat 7 is provided with a second sliding groove 15, and a slider 20 is slidably arranged in the second sliding groove 15. A discharge pipe 17 is provided on one side of the top seat 7, and a valve 16 is provided on the discharge pipe 17. The valve 16 is fixed to one side of the slider 20. A nozzle 18 is provided at the discharge end of the discharge pipe 17. A second motor 22 is provided at one end of the top seat 7. A second threaded rod 19 located inside the second sliding groove 15 and passing through the slider 20 is provided at the output end of the second motor 22. The second threaded rod 19 is threadedly connected to the slider 20.

[0024] Release agent spraying principle: Before processing the shoe upper, release agent needs to be sprayed onto the mold groove 6. First, the discharge pipe 17 is connected to the external release agent storage and conveying equipment via quick couplings or other means. The first motor 12 and the second motor 22 are precisely controlled by a PLC or other control equipment. When the second motor 22 is started, its output shaft drives the second threaded rod 19 to rotate. Since the second threaded rod 19 is threadedly connected to the slider 20, and the slider 20 slides within the second groove 15, the slider 20 will move laterally along the second groove 15. As the slider 20 moves, the valve 16 fixed to one side and the nozzle 18 connected to the valve 16 also move laterally. Simultaneously, the first motor 12 is started, and the output shaft of the first motor 12 drives the first threaded rod 13 to rotate. The first threaded rod 13 is threadedly connected to the base plate 10, and the base plate 10 is slidably connected to the guide rod 14. Under the action of the first threaded rod 13, the base plate 10, carrying the support rod 9, slides vertically in the first slide groove 8, thereby causing the top seat 7, carrying the valve 16 and the nozzle 18, to move vertically above the bottom mold 5. Through the coordinated work of the first motor 12 and the second motor 22, the valve 16, carrying the nozzle 18, can move according to the shape of the mold groove 6, evenly spraying the release agent from the nozzle 18 into the mold groove 6.

[0025] Mold opening and closing principle: After the release agent is sprayed, the top seat 7 moves to one side of the bottom mold 5 to begin the injection molding process of the shoe upper. The lifting assembly 3 (such as a hydraulic cylinder) is activated, causing the lifting rod to move downwards. The top mold 4, connected to the bottom end of the lifting rod, moves downwards accordingly until the top mold 4 and bottom mold 5 are tightly fitted together, and the mold groove 6 is closed. At this point, injection molding can proceed. After injection molding is complete, the piston rod of the hydraulic cylinder retracts, causing the lifting rod to move upwards. The top mold 4 rises accordingly, opening the mold to remove the molded shoe upper.

[0026] Processing table 1, bottom mold 5, and mold groove 6: Processing table 1 provides support and installation base for the entire mold. Bottom mold 5 is fixed to the upper end of processing table 1, and mold groove 6 is set on bottom mold 5. It is the cavity for injection molding of shoe upper and determines the shape and size of shoe upper.

[0027] Considering the need for precise control of the timing and flow rate of the release agent spraying, valve 16 adopts a solenoid valve with fast response speed and high control accuracy.

[0028] The base plate 10 is fixed to the bottom end of the support rod 9 by screws, and the top seat 7 and the support rod 9 are an integrated structure.

[0029] The integrated structure of the top seat 7 and support rod 9, along with the screw-fixed base plate 10, makes the assembly of mold components more convenient and reduces the difficulty of installation and maintenance.

[0030] A guide rod 14 is provided between the two fixed plates 11, penetrating both ends of the base plate 10, and the guide rod 14 is slidably connected to the base plate 10.

[0031] The guide rod 14 improves the stability of the top seat 7 when it moves vertically, preventing it from shaking or shifting, and ensuring the positional accuracy of the nozzle 18 when spraying the release agent, thereby improving the processing quality of the shoe upper.

[0032] Both the first motor 12 and the second motor 22 are servo motors.

[0033] Both the first motor 12 and the second motor 22 are servo motors. With the help of PLC and other control equipment, the rotation angle and speed of the motors can be precisely controlled, thereby achieving precise control of the vertical and horizontal movement of the nozzle 18. This allows the nozzle 18 to move according to the shape of the mold groove 6, ensuring that the release agent is evenly sprayed on all parts of the mold groove 6, improving the demolding effect of the shoe upper, and reducing product damage and defect rate caused by demolding difficulties.

[0034] The top seat 7 has a cavity on one side that communicates with the second slide groove 15. The valve 16 has side plates 21 on both sides. The side plates 21 are located inside the cavity and are fixed to one side of the slider 20 by screws.

[0035] The cavity on the top seat 7 that communicates with the second slide groove 15, and the side plates 21 on both sides of the valve 16 that are fixed to the slider 20 with screws, facilitate the installation, disassembly, and maintenance of the valve 16. When the valve 16 malfunctions or needs to be replaced, the operation can be carried out quickly, reducing equipment downtime and improving production efficiency.

[0036] The lifting assembly 3 uses a hydraulic cylinder.

[0037] The lifting assembly 3 uses a hydraulic cylinder, which has the advantages of large output force and smooth movement. It can reliably drive the top mold 4 to move up and down, realizing the mold opening and closing action. During the injection molding process, it can ensure that the top mold 4 and the bottom mold 5 fit tightly together, prevent the plastic melt from leaking, and ensure the molding quality of the shoe upper.

[0038] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A mold for processing shoe uppers, comprising a processing table (1), wherein a bottom mold (5) is provided at the upper end of the processing table (1), a mold groove (6) is provided on the bottom mold (5), a top plate (2) is provided above the processing table (1), a lifting assembly (3) is provided at the upper end of the top plate (2), a lifting rod penetrating the top plate (2) is provided at the output end of the lifting assembly (3), and a top mold (4) located above the bottom mold (5) is provided at the bottom end of the lifting rod, characterized in that: A top seat (7) is provided above the bottom mold (5). Two first sliding grooves (8) are provided on the symmetrical bottom mold (5) on the processing table (1). Two support rods (9) are symmetrically provided at both ends of the top seat (7) and slide through the first sliding grooves (8). A bottom plate (10) is provided at the bottom end of the support rods (9). A fixing plate (11) is provided at the lower end of the processing table (1). A first motor (12) is provided in the middle part of the fixing plate (11). A first threaded rod (13) is provided at the output end of the first motor (12) and threaded through the bottom plate (10) and threadedly connected to the bottom plate (10). The top seat (7) is provided with a second slide groove (15), and a slider (20) is slidably arranged in the second slide groove (15). A discharge pipe (17) is provided on one side of the top seat (7), and a valve (16) is provided on the discharge pipe (17). The valve (16) is fixed on one side of the slider (20). A nozzle (18) is provided at the discharge end of the discharge pipe (17). A second motor (22) is provided at one end of the top seat (7). A second threaded rod (19) is provided at the output end of the second motor (22) and is located inside the second slide groove (15) and passes through the slider (20). The second threaded rod (19) is threadedly connected to the slider (20).

2. The mold for processing shoe uppers according to claim 1, characterized in that: The base plate (10) is fixed to the bottom end of the support rod (9) by screws.

3. The mold for processing shoe uppers according to claim 2, characterized in that: A guide rod (14) is provided between the two fixed plates (11) and passes through both ends of the base plate (10), and the guide rod (14) is slidably connected to the base plate (10).

4. The mold for processing shoe uppers according to claim 3, characterized in that: The top seat (7) has a cavity on one side that communicates with the second slide groove (15), and the valve (16) has side plates (21) on both sides. The side plates (21) are located inside the cavity and are fixed to one side of the slider (20) by screws.

5. The mold for processing shoe uppers according to claim 4, characterized in that: The top seat (7) and the support rod (9) are an integrated structure.

6. The mold for processing shoe uppers according to claim 5, characterized in that: The lifting assembly (3) uses a hydraulic cylinder, and both the first motor (12) and the second motor (22) are servo motors.