Shoe material forming die
The design of a detachable injection tube and a circular adjusting screw solves the problem of blockage in the injection pipe of TPU shoe material molds, enabling convenient cleaning and adjustment of shoe material thickness.
Patent Information
- Application Number
- CN202520439987.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-13
AI Technical Summary
In the existing TPU shoe material mold, the injection material is prone to clogging the injection pipe during the injection process, and the scraper structure cannot effectively clean it, resulting in poor cleaning effect.
The design incorporates a detachable injection tube structure, separating tube one from tube two for easy cleaning; combined with a circular sleeve and adjusting screw structure, it enables the lifting and lowering adjustment of the compression molding plate.
It enables convenient cleaning of injection molding pipes, reduces the risk of blockage, and allows for adjustment of shoe material molding thickness.
Smart Images

Figure CN223790920U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of shoe material molding technology, specifically a shoe material molding mold. Background Technology
[0002] Footwear molds are essential tools in the manufacture of footwear products, commonly used to create components such as soles. For example, the soles of athletic shoes made of materials like EVA, TPU, and PU are often formed using injection molds. Molten plastic is injected into the mold cavity, and after cooling and solidification, it forms the desired sole shape.
[0003] Meanwhile, a TPU shoe material mold with announcement number CN221775111U is disclosed, including a lower template with a concave mold, an upper template at the top of the lower template, a convex mold at the bottom of the upper template, and an injection assembly on the lower template. The injection assembly includes: a cleaning tube disposed on the outer wall of the lower template and connected through the concave mold, an injection tube at the top of the cleaning tube, an electric push rod disposed inside the cleaning tube, and a scraper fixedly connected to the output shaft of the electric push rod, with the scraper abutting against the inner wall of the cleaning tube.
[0004] In the above-mentioned TPU shoe material mold, a simple cleaning scraper structure is used to scrape off the injection material during use. When the shoe material molding mold is in operation, the upper and lower molds have a simple structure with no intermediate base layer. During injection, the injection pipes will have residual condensation of the injection material, which will block the pipes. The scraper structure cannot clean the pipes, and the cleaning effect is generally poor.
[0005] Therefore, a shoe material molding die is proposed to address the above problems. Utility Model Content
[0006] To address the problems mentioned in the background art, this utility model provides a shoe material molding die, which has the advantage that the injection pipe can be directly disassembled and cleaned during the manufacturing process.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a shoe material molding die, including an upper die, wherein a fitting seat is fitted to the bottom end of the upper die, and the interior of the upper die and the fitting seat includes...
[0008] The injection molding assembly includes an injection tube located between an upper mold and a fitting seat. Both ends of the injection tube are connected to a first through-tube that fits against the upper mold. A second through-tube is fitted to the outer side of the first through-tube. A side plate that fits against the fitting seat is fitted to the outer side of the upper mold. A fastening screw that is spirally connected to the upper mold is installed through the interior of the side plate. A middle mold that fits against the injection tube is fitted to the bottom end of the fitting seat. A lower mold is fitted to the bottom end of the middle mold.
[0009] Preferably, a slot is provided at the joint between the upper mold and the side plate, and the combined pipe of pipe one and pipe two is located inside the slot.
[0010] Preferably, the bottom end of the injection tube is connected to an outlet tube, which penetrates the intermediate mold.
[0011] Preferably, a socket is fixedly provided on the lower outer side of the fitting seat, and positioning rods that are inserted into the socket are fixedly provided on both sides of the top of the middle mold.
[0012] Preferably, the top of the intermediate mold has a placement groove, and the injection tube is located inside the placement groove.
[0013] Preferably, the top two sides of the fitting seat are fixedly provided with buckles, and the buckles are inserted into the side plate.
[0014] Preferably, the top of the lower mold is provided with injection grooves communicating with the middle mold around its top perimeter. A compression plate is slidably provided at the center of the top of the lower mold. A circular sleeve that is fixed through the lower mold is fitted to the bottom of the compression plate. An adjusting screw that rotates with the compression plate is spirally provided inside the circular sleeve.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] 1. This utility model, through the design of the injection tube structure in the detachable injection molding assembly, allows the detachable injection tube structure to be unfolded through the upper through-pipe one and through-pipe two after injection molding, separating it into two pipes. The internal injection tube can then be removed for flushing, making the cleaning operation convenient and greatly reducing the difficulty of cleaning the injection pipe blockage.
[0017] 2. This utility model uses a circular sleeve and adjusting screw structure design, which allows the adjusting screw structure located inside the circular sleeve to be rotated and adjusted, thereby controlling the lifting and lowering of the compression plate structure located inside the lower mold, and thus adjusting and controlling the bottom thickness of the shoe material molding. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is an exploded structural diagram of the upper mold and the fitting seat of this utility model;
[0020] Figure 3 This is a schematic diagram of the installation structure of the mold in this utility model;
[0021] Figure 4 This is a schematic diagram of the installation structure of the lower mold of this utility model;
[0022] Figure 5This is a schematic diagram of the installation structure of the compression molding plate of this utility model.
[0023] In the diagram: 1. Upper mold; 2. Fitting seat; 3. Slot; 4. Side plate; 5. Fastening screw; 6. Buckle;
[0024] 7. Injection molding assembly; 71. Injection molding tube; 72. Through-tube one; 73. Through-tube two; 74. Ejection tube; 75. Placement slot; 76. Socket; 77. Positioning rod;
[0025] 8. Middle mold; 9. Lower mold; 10. Injection tank; 11. Compression plate; 12. Circular sleeve; 13. Adjusting screw. Detailed Implementation
[0026] 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.
[0027] The following describes an embodiment of this utility model based on its overall structure.
[0028] like Figures 1 to 5 As shown, this utility model provides a shoe material molding die, including an upper die 1, with a fitting seat 2 attached to the bottom end of the upper die 1. The fitting seat 2 engages with the upper die 1 for fixed positioning. The interior of the upper die 1 and the fitting seat 2 includes...
[0029] Injection assembly 7 includes an injection tube 71 located between the upper mold 1 and the fitting seat 2. Both ends of the injection tube 71 are connected to a first through tube 72 that fits against the upper mold 1. A second through tube 73 is fitted to the outside of the first through tube 72. The first through tube 72 and the second through tube 73 are designed to form a whole to guide the injection material. A side plate 4 that fits against the fitting seat 2 is fitted to the outside of the upper mold 1. A fastening screw 5 that is spirally arranged with the upper mold 1 is installed through the inside of the side plate 4. The side plate 4 is installed and fixed to the outside of the upper mold 1. A middle mold 8 that fits against the injection tube 71 is fitted to the bottom of the fitting seat 2. A lower mold 9 is fitted to the bottom of the middle mold 8. The combination of multiple modules facilitates disassembly and cleaning of the internal mold.
[0030] In this embodiment, a slot 3 is provided at the joint between the upper mold 1 and the side plate 4, and the combined pipe of pipe 1 72 and pipe 2 73 is located inside the slot 3, which facilitates the positioning of pipe 1 72 and pipe 2 73 through the slot 3. The bottom end of the injection molding pipe 71 is connected to the extrusion pipe 74, which passes through the middle mold 8. A socket 76 is fixedly provided on the lower outer side of the fitting seat 2. Positioning rods 77 that are inserted into the sockets 76 are fixedly provided on both sides of the top of the middle mold 8. The middle mold 8 can be installed on the outside of the sockets 76 through the positioning rods 77 for guided installation. A placement groove 75 is provided on the top of the middle mold 8, and the injection molding pipe 71 is located inside the placement groove 75. The placement groove 75 structure provides a more stable positioning space.
[0031] Both sides of the top of the fitting seat 2 are fixedly provided with buckles 6, and the buckles 6 are inserted into the side plate 4. The top of the lower mold 9 is provided with injection grooves 10 that communicate with the middle mold 8. The center of the top of the lower mold 9 is slidably provided with a compression plate 11. The structural design of the compression plate 11 can better adjust and change the thickness of the bottom of the shoe heel. The bottom of the compression plate 11 is fitted with a circular sleeve 12 that is fixed through the lower mold 9. The inside of the circular sleeve 12 is provided with an adjusting screw 13 that is rotatably connected to the compression plate 11. Rotating the adjusting screw 13 can control the up and down movement inside the circular sleeve 12, and at the same time, push the compression plate 11 at the top to adjust up and down.
[0032] The working principle and process of a shoe material molding die:
[0033] The operator installs the injection mold onto the injection molding machine body, connects the feeding channel to the top inlet of the first pipe 72 and the second pipe 73 of the injection molding component 7, and establishes communication. The upper mold 1 structure is pushed down by the hydraulic structure in the injection molding machine body. The control fitting seat 2 is connected to the slot at the top of the positioning rod 77 of the lower middle mold 8 through the socket 76 structure on both sides of the bottom end, completing the guiding and limiting, and positioning. The injection tube 71 structure is inserted into the placement groove 75 and is led out through the middle mold 8 and the ejection tube 74 for injection. The adjustment position is rotated. The adjusting screw 13 inside the inner sleeve 12 of the lower mold 9 rotates, pushing the compression plate 11 inside the lower mold 9 to rise or fall, thereby controlling the lifting and lowering of the compression plate 11 and adjusting its height to meet the needs of adjusting the heel height of the compression molded shoe material. After injection molding is completed, the upper mold 1 can be removed. After removing the fastening screw 5, the side plate 4 can be removed. The side plate 4 is then disengaged from the buckle 6, allowing the upper mold 1 to be separated from the fitting seat 2. The injection tube 71 in the injection molding assembly 7 can be removed, and the through tube 73 can be opened to clean the internal injection molding material.
[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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.
[0035] 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, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A shoe material forming mold, comprising an upper mold (1), characterized in that: The bottom end of the upper mold (1) is fitted with a fitting seat (2), and the interior of the upper mold (1) and the fitting seat (2) includes... Injection assembly (7), the injection assembly (7) includes an injection tube (71) located between the upper mold (1) and the fitting seat (2), both ends of the injection tube (71) are connected to a first through tube (72) that fits against the upper mold (1), the outside of the first through tube (72) is fitted with a second through tube (73), the outside of the upper mold (1) is fitted with a side plate (4) that fits against the fitting seat (2), the inside of the side plate (4) is provided with a fastening screw (5) that is spirally arranged with the upper mold (1), the bottom end of the fitting seat (2) is fitted with a middle mold (8) that fits against the injection tube (71), and the bottom end of the middle mold (8) is fitted with a lower mold (9).
2. The shoe material forming mold according to claim 1, characterized in that: The upper mold (1) and the side plate (4) are fitted with a slot (3), and the connecting pipe one (72) and the connecting pipe two (73) are combined into a pipe located inside the slot (3).
3. The shoe material forming mold according to claim 1, characterized in that: The bottom end of the injection tube (71) is connected to the outlet tube (74), which passes through the middle mold (8).
4. The shoe material molding die according to claim 1, characterized in that: A socket (76) is fixedly provided on the lower outer side of the fitting seat (2), and positioning rods (77) that are inserted into the socket (76) are fixedly provided on both sides of the top of the middle mold (8).
5. The shoe material forming mold according to claim 1, characterized in that: The top of the middle mold (8) is provided with a placement groove (75), and the injection tube (71) is located inside the placement groove (75).
6. The shoe material molding die according to claim 1, characterized in that: Both sides of the top of the fitting seat (2) are fixedly provided with buckles (6), and the buckles (6) are inserted into the side plate (4).
7. The shoe material forming mold according to claim 1, characterized in that: The top of the lower mold (9) is provided with injection grooves (10) that communicate with the middle mold (8) around its top. A compression plate (11) is slidably provided at the center of the top of the lower mold (9). A circular sleeve (12) that is fixed to the lower mold (9) is fitted to the bottom of the compression plate (11). An adjusting screw (13) that rotates with the compression plate (11) is spirally provided inside the circular sleeve (12).
Citation Information
Patent Citations
TPU (thermoplastic polyurethane) shoe material mold
CN221775111U