Sole mold with automatic lock catch structure
By introducing an automatic locking structure and positioning components into the shoe sole mold, the problem of upper and lower mold separation during the molding process is solved, which improves production efficiency and product quality, simplifies the operation process, and extends the service life of the mold.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-03-10
AI Technical Summary
Existing shoe sole molds lack an effective locking structure during the molding process, which leads to the separation of the upper and lower molds, affecting the appearance and function of the product. Furthermore, the existing locking structure is complex and cumbersome to operate, increasing manufacturing costs and reducing production efficiency.
Design a shoe sole mold with an automatic locking structure, including an upper mold, a lower mold, and a detachable molding insert, connected by a hinge structure, and employing an automatic locking structure and positioning components to ensure that the mold does not separate during the molding process, while providing venting grooves to expel gas and improve molding quality.
It enables automatic locking and unlocking of molds during the molding process, simplifies operation steps, improves production efficiency, ensures product precision and quality, and extends the service life of molds.
Smart Images

Figure CN223982011U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, and in particular to a shoe sole mold with an automatic locking structure. Background Technology
[0002] In recent years, with the maturity of 3D metal printing technology, the footwear industry has begun to gradually try to introduce 3D metal printing technology into production. Shoe sole molds are industrial tools used to produce various types of shoes. Molds are usually composed of an upper mold and a lower mold, which are joined together to form the shape of the sole. In the shoe sole mold forming process, the upper and lower molds may separate, resulting in appearance defects and affecting the appearance and function of the product. Existing locking structures generally have the problems of complex structure and cumbersome operation, which not only increases the manufacturing cost of the mold, but also prolongs the operation time and reduces production efficiency. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a shoe sole mold with an automatic locking structure, which has high production efficiency, a good automatic locking structure effect, and is simple to operate.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A shoe sole mold with an automatic locking structure includes: an upper mold, a lower mold, and a 3D-printed molding insert detachably fixed to the lower mold. The lower mold has an insert groove for placing the molding insert. The front sides of the upper mold and the lower mold are connected by a hinge structure. The rear sides of the upper mold and the lower mold are provided with an automatic locking structure. The lower mold and the molding insert are provided with venting grooves. A positioning component is provided between the upper mold and the lower mold.
[0006] According to some embodiments of the present invention, the upper mold and the lower mold are both provided with covering blocks on one side of the hinge structure and on the other side of the automatic locking structure.
[0007] According to some embodiments of the present invention, the automatic locking structure includes a fixed seat disposed on the outside of the lower mold, a rotating seat disposed on the outside of the upper mold, and an L-shaped lock screwed to the rotating seat for engaging with the fixed seat.
[0008] According to some embodiments of this utility model, the lower part of the L-shaped buckle is provided with a first guide surface near the fixed base, and the upper part of the fixed base is provided with a second guide surface that cooperates with the first guide surface near the first guide surface. When the mold is closed, the first guide surface and the second guide surface slide against each other. The first guide surface and the second guide surface are used to guide the L-shaped buckle to rotate outward and automatically fasten under the fixed base.
[0009] According to some embodiments of the present invention, a loop handle for separating the L-shaped latch and the fixing seat is fixed on the outside of the L-shaped latch.
[0010] According to some embodiments of the present invention, the positioning component includes a mold stop block disposed on the upper mold and a mold stop groove disposed on the lower mold that matches the mold stop block.
[0011] According to some embodiments of the present invention, the positioning component includes a die pin disposed on the lower mold and a die sleeve disposed on the upper mold that matches the die pin.
[0012] According to some embodiments of the present invention, the venting groove includes a first venting groove and a second venting groove horizontally disposed on the lower mold and the molding insert.
[0013] According to some embodiments of the present invention, both the first venting groove and the second venting groove include a first transverse groove disposed on the left side of the lower mold, a second transverse groove disposed on the left side of the molding insert, a third transverse groove disposed in the middle of the molding insert, a fourth transverse groove disposed on the right side of the molding insert, and a fifth transverse groove disposed on the right side of the lower mold, which are connected in sequence.
[0014] According to some embodiments of this utility model, the molded insert is made of aluminum alloy powder printed by printing.
[0015] This utility model has at least the following beneficial effects:
[0016] When the mold is closed, it automatically locks in place using an automatic locking structure. The structure is simple and convenient, effectively preventing the mold from opening up and down during processing. When the mold is opened, it also automatically unlocks as the mold opens. The automatic locking structure is flexible, reduces operation steps, and improves production efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the lower mold structure according to an embodiment of the present invention;
[0018] Figure 2 This is a schematic diagram of the upper mold according to one embodiment of the present invention;
[0019] Figure 3This is a diagram showing the mold-closing state of an automatic locking structure according to an embodiment of the present invention;
[0020] Figure 4 This is a schematic diagram of the fastening of an automatic locking structure according to an embodiment of the present invention;
[0021] Figure 5 This is a diagram showing the mold opening state of an automatic locking structure according to an embodiment of the present invention. Detailed Implementation
[0022] This invention provides the following description with reference to the accompanying drawings to aid in a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.
[0023] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.
[0024] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intervening element (e.g., the third element) between the element and the other element.
[0025] An embodiment of this utility model provides a shoe sole mold with an automatic locking structure, such as... Figure 1-5 As shown, the device includes an upper mold 101, a lower mold 102, and a 3D-printed molding insert 103 detachably fixed to the lower mold 102. The lower mold 102 has an insert groove for placing the molding insert 103. The front sides of the upper mold 101 and the lower mold 102 are connected by a hinge structure 105. The rear sides of the upper mold 101 and the lower mold 102 are provided with an automatic locking structure 2. The lower mold 102 and the molding insert 103 are provided with venting grooves 3. A positioning component 4 is provided between the upper mold 101 and the lower mold 102.
[0026] Specifically, the molding insert 103 is fixed to the insert groove of the lower mold 102 by screws and other fixing structures. The molding insert 103 of the mold is 3D printed. Compared with the traditional casting insert, the molding insert 103 has a smooth texture, high precision, and good molding effect. The molding insert 103 can be easily replaced and maintained, reducing the wear of the overall mold and improving the durability of the mold. The design of the venting groove 3 allows gas to be effectively discharged during molding, reducing air bubbles and defects in the footwear and improving the quality of the footwear. The upper mold 101 is connected to the lower mold 102 via a hinge structure 105. When the mold is closed, it is automatically locked by an automatic locking structure 2. The structure is simple and convenient, effectively preventing the mold from opening during processing. When the mold is opened, it can also be automatically unlocked with the mold opening action. The automatic locking structure 2 is flexible, reduces operation steps, and improves production efficiency. The hinge structure 105 takes into account both connection and positioning functions. The positioning component 4 is used to position the upper mold 101 and the lower mold 102, so that the upper mold 101 and the lower mold 102 are aligned, improving the accuracy of the shoe.
[0027] In some embodiments, such as Figure 1-2 As shown, the upper mold 101 and the lower mold 102 are both provided with covering blocks 5 on the hinge structure 105 side and the automatic locking structure 2 side.
[0028] Specifically, the covering block 5 is placed on the corner side of the mold. By covering the edge of the mold with a metal covering block 5, which has high strength and hardness, the overall strength and pressure resistance of the mold can be effectively enhanced, making it less prone to deformation or damage during high-pressure molding and extending the service life of the mold.
[0029] In some embodiments, such as Figure 1-5 As shown, the automatic locking structure 2 includes a fixed seat 201 disposed on the outside of the lower mold 102, a rotating seat 202 disposed on the outside of the upper mold 101, and an L-shaped lock 203 screwed to the rotating seat 202 for engaging with the fixed seat 201.
[0030] Specifically, during mold closing, the L-shaped latch 203 rotates on the rotating seat 202 manually or by a drive mechanism, so that the lower opening width of the L-shaped latch 203 is wider than that of the fixed seat 201, thereby locking downwards into the fixed seat 201 or other recessed structures to fix the upper mold 101 and the lower mold 102; during mold opening, the L-shaped latch 203 rotates on the rotating seat 202, so that the lower side of the L-shape moves away from the fixed seat 201, thereby separating the upper mold 101 and the lower mold 102.
[0031] Furthermore, such as Figure 1-4As shown, the lower part of the L-shaped latch 203 near the fixed base 201 has a first guide surface 204, and the upper part of the fixed base 201 near the first guide surface 204 has a second guide surface 205 that cooperates with the first guide surface 204. When the mold is closed, the first guide surface 204 and the second guide surface 205 slide relative to each other. The first guide surface 204 and the second guide surface 205 are used to guide the L-shaped latch 203 to rotate outward and automatically latch onto the bottom of the fixed base 201.
[0032] like Figure 3 As shown, during mold closing, the L-shaped latch 203 is pressed down by the upper mold 101. The first guide surface 204 of the L-shaped latch 203 abuts against and slides relative to the second guide surface 205 of the fixed seat 201. Guided by the first guide surface 204, the L-shaped latch 203 gradually rotates outward until the opening is wider than the fixed seat 201. Then it moves downward to the fixed seat 201. When it moves to the bottom of the fixed seat 201, the L-shaped latch 203 is automatically engaged by rotating the seat 202.
[0033] Furthermore, such as Figure 1-2 As shown in Figures 4-5, a loop handle 206 for separating the L-shaped latch 203 and the fixing seat 201 is fixed on the outside of the L-shaped latch 203.
[0034] like Figure 5 As shown, the design of the spiral handle 206 allows the L-shaped latch 203 and the fixing seat 201 to be separated when the mold is opened, and the upper mold 101 and the lower mold 102 can be opened at the same time without the need for additional unlocking action, which is highly convenient.
[0035] In some embodiments, such as Figure 1-2 As shown, the positioning component 4 includes a mold stop 401 disposed on the upper mold 101 and a mold stop groove 402 disposed on the lower mold 102 that matches the mold stop 401.
[0036] In practice, the mold stop 401 is set on the left and right sides and the middle of the rear side of the mold to prevent the upper and lower molds from moving in the front-back and left-right directions during the molding process, thereby ensuring the dimensional accuracy and consistency of the molded product.
[0037] In some embodiments, such as Figure 1-2 As shown, the positioning component 4 includes a die pin 403 disposed on the lower die 102 and a die sleeve 404 disposed on the upper die 101 that matches the die pin 403.
[0038] The mold pin 403 plays a positioning and guiding role in the mold, making it easy for the mold to maintain the correct position and angle during assembly and use. The mold pin 403 can also serve as a support point to bear part of the weight of the mold, preventing the mold from deforming or being damaged during use, and ensuring the accuracy and stability of the mold.
[0039] In some embodiments, such as Figure 1 As shown, the venting groove 3 includes a first venting groove 301 and a second venting groove 302 horizontally arranged on the lower mold 102 and the forming insert 103. The horizontally arranged venting groove 3 facilitates venting and is easy to process.
[0040] Furthermore, such as Figure 1 As shown, both the first venting groove 301 and the second venting groove 302 include, in sequence, a first horizontal groove 303 located on the left side of the lower mold 102, a second horizontal groove 304 located on the left side of the molding insert 103, a third horizontal groove 305 located in the middle of the molding insert 103, a fourth horizontal groove 306 located on the right side of the molding insert 103, and a fifth horizontal groove 307 located on the right side of the lower mold 102. The first horizontal groove 303, the second horizontal groove 304, the third horizontal groove 305, the fourth horizontal groove 306, and the fifth horizontal groove 307 are connected in sequence to facilitate venting.
[0041] In some embodiments, the molded insert 103 is formed by aluminum alloy powder printing. The molded insert 103 formed by aluminum alloy powder printing is lightweight and has a cost advantage.
[0042] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, those skilled in the art should understand that the foregoing description of various embodiments of the present invention is for illustrative purposes only, and not intended to limit the present invention as defined by the appended claims and their equivalents.
Claims
1. A sole mold having an automatic locking structure, characterized by, The utility model relates to a 3D printing forming mould structure, which comprises an upper mould (101), a lower mould (102) and a 3D printing forming mould insert (103) detachably fixed on the lower mould (102), the lower mould (102) is provided with a mould insert groove for placing the forming mould insert (103), the front sides of the upper mould (101) and the lower mould (102) are connected through a hinge structure (105), the rear sides of the upper mould (101) and the lower mould (102) are provided with an automatic locking structure (2), the lower mould (102) and the forming mould insert (103) are provided with exhaust grooves (3), and the upper mould (101) and the lower mould (102) are provided with a positioning assembly (4). The automatic locking structure (2) comprises a fixed seat (201) arranged on the outer side of the lower mould (102), a rotating seat (202) arranged on the outer side of the upper mould (101) and an L-shaped lock (203) rotatably connected with the rotating seat (202) and used for being buckled with the fixed seat (201). The upper mould (101) and the lower mould (102) are provided with cladding blocks (5) on the side of the hinge structure (105) and the side of the automatic locking structure (2).
2. The shoe sole mold with automatic locking structure according to claim 1, characterized in that: The lower part of the L-shaped lock (203) is provided with a first guide surface (204) close to the side of the fixed seat (201), the upper part of the fixed seat (201) is provided with a second guide surface (205) close to the side of the first guide surface (204) and matched with the first guide surface (204), the first guide surface (204) and the second guide surface (205) are used for guiding the L-shaped lock (203) to rotate outward and be automatically buckled below the fixed seat (201) when the mould is closed.
3. The shoe sole mold with automatic locking structure according to claim 1, characterized in that: The outer side of the L-shaped lock (203) is fixedly provided with a back-shaped handle (206) used for separating the L-shaped lock (203) and the fixed seat (201).
4. The shoe sole mold with automatic locking structure according to claim 1, characterized in that: The positioning assembly (4) comprises a mould stopper (401) arranged on the upper mould (101) and a mould stopper groove (402) arranged on the lower mould (102) and matched with the mould stopper (401).
5. The shoe sole mold with automatic locking structure according to claim 1, characterized in that: The positioning assembly (4) comprises a mould pin (403) arranged on the lower mould (102) and a mould sleeve (404) arranged on the upper mould (101) and matched with the mould pin (403).
6. The shoe sole mold with automatic locking structure according to claim 1, characterized in that: The exhaust grooves (3) comprise first exhaust grooves (301) and second exhaust grooves (302) horizontally arranged on the lower mould (102) and the forming mould insert (103).
7. The shoe sole mold with automatic locking structure according to claim 1, characterized in that: The first exhaust grooves (301) and the second exhaust grooves (302) each comprise first horizontal grooves (303) arranged on the left side of the lower mould (102), second horizontal grooves (304) arranged on the left side of the forming mould insert (103), third horizontal grooves (305) arranged in the middle of the forming mould insert (103), fourth horizontal grooves (306) arranged on the right side of the forming mould insert (103) and fifth horizontal grooves (307) arranged on the right side of the lower mould (102), and the first horizontal grooves (303), the second horizontal grooves (304), the third horizontal grooves (305), the fourth horizontal grooves (306) and the fifth horizontal grooves (307) are sequentially communicated.
8. The shoe sole mold with automatic locking structure according to claim 7, characterized in that: 9. The shoe sole mold with automatic locking structure according to claim 1, characterized in that: The shaped insert (103) is printed from an aluminum alloy powder.