Hollow shoe sole forming mold

Abstract

The utility model relates to the technical field of molds, and particularly discloses a hollow sole forming mold. The die comprises an upper die, a lower die, a bottom hole forming structure arranged on the upper die and connected with the lower die, a side hole forming structure slidably connected with the lower die, and a material injection structure arranged on the lower die. The bottom hole forming structure comprises a connecting structure connected with the upper die, a die core insert connected with the connecting structure and a first forming part arranged on the side face of the die core insert, and the first forming part abuts against the second forming part of the side hole forming structure during die assembly. The second forming part abuts against the third forming part of the upper mold and the fourth forming part of the lower mold during mold closing, during mold opening, the side hole forming structure slides laterally to be demolded, and the upper mold pulls the connecting structure to drive the mold core insert to be demolded. According to the utility model, the bottom hole and the side hole can be integrally formed, the integral demoulding is ensured, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a hollow shoe sole forming mold. Background Technology

[0002] In recent years, with the maturation of 3D metal printing technology, the footwear industry has gradually begun to incorporate it into production, improving the overall precision of shoe patterns. Meanwhile, mold design and production methods have a significant impact on the appearance and quality of shoes. Shoes with different functions exhibit significant differences in appearance and structure, with complex shapes, diverse production processes, and varying mold structures. Currently, the footwear being produced requires intricate sole textures, with through-holes on the sole and sides. However, in traditional production processes, the bottom and side holes often need to be processed separately, increasing production steps and potentially leading to inaccurate hole alignment, affecting product appearance and function, and significantly reducing 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 hollow shoe sole forming mold, which enables the integral forming of the bottom hole and side holes, and ensures integral demolding, thereby improving production efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A hollow shoe sole forming mold includes: an upper mold, a lower mold, a bottom hole forming structure disposed on the upper mold and connected to the lower mold, a side hole forming structure slidably connected to the lower mold, and an injection structure disposed on the lower mold. The bottom hole forming structure includes a connecting structure connected to the upper mold, a mold core insert connected to the connecting structure, and a first forming part disposed on the side of the mold core insert. When the mold is closed, the first forming part abuts against a second forming part of the side hole forming structure. When the mold is closed, the second forming part abuts against a third forming part of the upper mold and a fourth forming part of the lower mold, respectively. The first forming part, the second forming part, the third forming part, and the fourth forming part surround to form a forming cavity. When the mold is opened, the side hole forming structure slides laterally to demold, and the upper mold pulls the connecting structure to demold the mold core insert.

[0006] According to some embodiments of the present invention, the connecting structure includes a pull rod that connects the mold core insert and the upper mold respectively, and a first spring sleeved on the outside of the pull rod. The bottom of the upper mold is provided with a first spring groove for accommodating the first spring. When the mold is closed, the top of the first spring abuts against the bottom surface of the first spring groove, and the bottom of the first spring abuts against the mold core insert.

[0007] According to some embodiments of the present invention, the top of the pull rod is fixed on the upper mold, the bottom of the pull rod is provided with a limiting block for pulling the mold core insert, the lower mold is provided with a first groove for accommodating the limiting block, and the bottom of the mold core insert is provided with a second groove for accommodating the limiting block.

[0008] According to some embodiments of the present invention, the connecting structure further includes a guide rod fixed on the upper mold and passing through the mold core insert, a guide rod groove matching the guide rod on the lower mold, and a guide rod through groove matching the guide rod inside the mold core insert.

[0009] According to some embodiments of the present invention, the side hole forming structure includes a slider seat, a first guide member disposed on the lower mold and slidably connected to the slider seat, and a second guide member disposed on both sides of the slider seat and slidably connected to the lower mold, wherein the second forming part is disposed on the side of the slider seat facing the mold core insert.

[0010] According to some embodiments of the present invention, the first guide member includes a slide rod that is inclined downward toward the inner side of the mold and fixed on the lower mold, and a second spring sleeved on the outer side of the slide rod. The inner side of the slider seat is provided with a second spring groove for accommodating the second spring. One end of the second spring abuts against the lower mold, and the other end abuts against the second spring groove.

[0011] According to some embodiments of the present invention, the second guide includes sliding protrusions disposed on both sides of the slider seat with the same inclination angle as the first guide, and the lower mold is provided with a sliding groove that matches the sliding protrusions.

[0012] According to some embodiments of the present invention, the slider seat is provided with a first inclined surface on the opposite side of the second forming part, the outer side of the upper mold is provided with a slider stop, and the inner side of the slider stop is provided with a second inclined surface that cooperates with the first inclined surface. When the mold is closed, the first inclined surface and the second inclined surface slide against each other, and the slider stop is used to push the slider seat to move towards the inside of the mold.

[0013] According to some embodiments of the present invention, the second molding part has a sole groove for molding the bottom of the sole and a first side hole protrusion disposed on both sides of the sole groove, the first molding part has a bottom hole protrusion that abuts against the sole groove when the mold is closed, the third molding part has a second side hole protrusion that abuts against the first side hole protrusion when the mold is closed, and the fourth molding part has a third side hole protrusion that abuts against the first side hole protrusion when the mold is closed.

[0014] According to some embodiments of the present invention, the injection structure includes a Y-shaped flow channel groove disposed on the lower mold, a flow regulating protrusion disposed on the Y-shaped flow channel groove, and a side flow channel groove connected to the end of the Y-shaped flow channel groove and communicating with the molding cavity.

[0015] This utility model has at least the following beneficial effects:

[0016] Through optimized design, a bottom hole forming structure and a side hole forming structure are set up to work together with the upper and lower molds to form the shoe. This allows the bottom hole of the sole and the side holes on both sides to be formed and demolded simultaneously. When the upper and lower molds are opened, the side hole forming structures on the left and right sides slide outwards from the mold. The mold core insert is pulled away from the lower mold by the upper mold pulling connection structure. The finished sole can bounce and foam at the moment the mold is opened and be successfully demolded. The mold forming and demolding effects are good, and the production efficiency is high. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the upper mold and bottom hole forming structure according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the lower mold structure according to an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the side hole forming structure according to an embodiment of the present invention;

[0020] Figure 4 It is along Figure 2 The mold opening state diagram of the AA line;

[0021] Figure 5 It is along Figure 2 A diagram showing the mold closing state of the AA line;

[0022] Figure 6 It is along Figure 2 BB line mold opening state diagram;

[0023] Figure 7 It is along Figure 2 The mold closing state diagram of the BB line. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] 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.

[0027] An embodiment of this utility model provides a hollow shoe sole forming mold, such as... Figure 1-7 As shown, the device includes an upper mold 101, a lower mold 102, a bottom hole forming structure 200 connected to the lower mold 102 and disposed on the upper mold 101, a side hole forming structure 300 slidably connected to the lower mold 102, and an injection structure 400 disposed on the lower mold 102. The bottom hole forming structure 200 includes a connecting structure 201 connected to the upper mold 101, a mold core insert 202 connected to the connecting structure 201, and a first forming part 203 disposed on the side of the mold core insert 202. The first forming part 203 is in the closing position... When the mold is closed, the second forming part 301 of the side hole forming structure 300 abuts against the third forming part 103 of the upper mold 101 and the fourth forming part 104 of the lower mold 102 respectively. The first forming part 203, the second forming part 301, the third forming part 103 and the fourth forming part 104 form a forming cavity 105. When the mold is opened, the side hole forming structure 300 slides laterally to demold, and the upper mold 101 pulls the connecting structure 201 to drive the mold core insert 202 to demold.

[0028] The mold incorporates a bottom hole forming structure 200 and a side hole forming structure 300, which work in conjunction with the upper and lower molds 102 to form the shoe. This allows for simultaneous forming and demolding of the bottom hole and the side holes on both sides of the sole. The modular design ensures efficient hole forming and flexible demolding, and allows for adjustment or replacement of partial forming structures as needed, improving mold flexibility and lifespan. In practice, the mold has two forming cavities 105, capable of simultaneously forming the left and right soles in pairs. Therefore, the mold insert 202 has a first forming part 203 on both sides, and side hole forming structures 300 connected to the first forming part 203 on both sides. The first forming part 203 intersects with the second forming part 301 to form the bottom hole, and the second forming part 301 intersects with the third forming part 103 and the fourth forming part 104 respectively to form the side holes on both sides, ensuring the forming of the holes. The injection structure 400 is located on the lower mold 102, ensuring uniform filling of the forming cavity 105 with the injection material, reducing air bubbles or insufficient filling, and improving product yield. When the upper and lower molds 102 are opened, the side hole forming structures 300 on the left and right sides slide outwards from the mold. The mold core insert 202 is pulled by the upper mold 101 to the connecting structure 201, causing the mold core insert 202 to separate from the lower mold 102. The connecting structure 201 also gives the mold core insert 202 a certain delay demolding effect, ensuring that the bottom hole part can be demolded smoothly without interfering with the side hole forming structure 300, but without affecting the mold opening speed. The finished shoe sole can bounce and foam at the moment of mold opening and be successfully demolded and formed, avoiding the phenomenon of mold jamming or deformation. The mold forming and demolding effect is good, and the production efficiency is high.

[0029] In some embodiments, such as Figure 4-5 As shown, the connecting structure 201 includes a pull rod 204 that connects the mold core insert 202 and the upper mold 101 respectively, and a first spring 205 sleeved on the outside of the pull rod 204. The bottom of the upper mold 101 is provided with a first spring groove 206 for accommodating the first spring 205. When the mold is closed, the top of the first spring 205 abuts against the bottom surface of the first spring groove 206, and the bottom of the first spring 205 abuts against the mold core insert 202.

[0030] In this embodiment, the upper end of the pull rod 204 is fixed to the upper mold 101 and slidably connected to the mold core insert 202; in other embodiments, the lower end of the pull rod 204 may be fixed to the mold core insert 202 and the upper end slidably connected to the upper mold 101; when the mold is opened, the pull rod 204 lifts the mold core insert 202; when the mold is closed, it cooperates with the first spring 205 to make the mold core insert 202 press tightly against the lower mold 102. The first spring 205 is compressed in the first spring groove 206, which ensures the accurate positioning of the mold core insert 202 when the mold is closed and improves the molding accuracy. In practice, there are two pull rods 204, which improves the stability of the mold core insert 202. The structure of the pull rod 204 and the first spring 205 is simple and easy to disassemble and replace.

[0031] Furthermore, such as Figure 4-5 As shown, the top of the pull rod 204 is fixed on the upper mold 101, and the bottom of the pull rod 204 is provided with a limiting block 207 for pulling the mold core insert 202. The lower mold 102 is provided with a first groove 208 for accommodating the limiting block 207, and the bottom of the mold core insert 202 is provided with a second groove 209 for accommodating the limiting block 207.

[0032] When the mold opens, the pull rod 204 moves upward along with the upper mold 101, the limiting block 207 disengages from the first groove 208, then abuts against the second groove 209 and pulls the mold core insert 202 upward; when the mold closes, the mold core insert 202 abuts against the lower mold 102, then the limiting block 207 disengages from the second groove 209 and moves towards the first groove 208, finally abutting against the bottom of the first groove 208.

[0033] In some embodiments, such as Figure 6-7 As shown, the connecting structure 201 also includes a guide rod 210 fixed on the upper mold 101 and passing through the mold core insert 202. The lower mold 102 is provided with a guide rod groove 211 that matches the guide rod 210, and the mold core insert 202 is provided with a guide rod through groove 212 that matches the guide rod 210.

[0034] Specifically, during mold closing, the mold core insert 202 abuts against the lower mold 102, and the guide rod 210 slides downward in the guide rod through groove 212 and inserts into the guide rod groove 211. The guide rod 210 is located on one side of the pull rod 204 to provide further guidance for the mold core insert 202, ensuring the positioning between the mold core insert 202 and the lower mold 102.

[0035] In some embodiments, such as Figure 2-5 As shown, the side hole forming structure 300 includes a slider seat 302, a first guide member 303 disposed on the lower mold 102 and slidably connected to the slider seat 302, and a second guide member 304 disposed on both sides of the slider seat 302 and slidably connected to the lower mold 102. The second forming part 301 is disposed on the side of the slider seat 302 facing the mold core insert 202.

[0036] When the mold is opened, the slider seat 302 moves outward and moves in the desired direction under the guidance of the first guide 303 and the second guide 304.

[0037] Furthermore, such as Figure 4-5 As shown, the first guide member 303 includes a slide rod 305 that is inclined downward toward the inside of the mold and fixed on the lower mold 102, and a second spring 306 sleeved on the outside of the slide rod 305. The inner side of the slider seat 302 is provided with a second spring groove 307 for accommodating the second spring 306. One end of the second spring 306 abuts against the lower mold 102, and the other end abuts against the second spring groove 307.

[0038] When the mold is opened, the compressed second spring 306 is released, and the slider seat 302 moves obliquely upward along the direction of the slide rod 305, which facilitates the demolding and ejection of the shoe sole product.

[0039] In some embodiments, such as Figure 3 As shown, the second guide 304 includes sliding protrusions 308 that are inclined at the same angle as the first guide 303 and are disposed on both sides of the slider seat 302. The lower mold 102 is provided with a sliding groove that matches the sliding protrusions 308.

[0040] During mold opening and closing, the square or T-shaped sliding protrusions 308 on the slider seat 302 slide within the matching grooves, improving the stability of the slider seat 302 during movement.

[0041] In some embodiments, such as Figure 1 , 3 As shown in Figures 6 and 7, the slider seat 302 and the second forming part 301 are provided with a first inclined surface 310 on the opposite side. The upper mold 101 is provided with a slider stop 311 on the outer side. The slider stop 311 is provided with a second inclined surface 312 that cooperates with the first inclined surface 310 on the inner side. When the mold is closed, the first inclined surface 310 and the second inclined surface 312 slide against each other. The slider stop 311 is used to push the slider seat 302 to move inward to the mold.

[0042] When the mold is closed, the slider stop 311 moves downward with the upper mold 101. Then the second inclined surface 312 abuts against the first inclined surface 310 and pushes the slider seat 302 to move inward to the mold. The slider stop 311 and the upper mold 101 are integrally set, which is reliable and improves the stability of the slider seat 302 when the mold is closed, thus improving the molding accuracy.

[0043] In some embodiments, such as Figure 4-5 As shown, the second molding part 301 has a sole groove 313 for molding the bottom of the sole and a first side hole protrusion 314 provided on both sides of the sole groove 313. The first molding part 203 has a bottom hole protrusion 213 that abuts against the sole groove 313 when the mold is closed. The third molding part 103 has a second side hole protrusion 106 that abuts against the first side hole protrusion 314 when the mold is closed. The fourth molding part 104 has a third side hole protrusion 107 that abuts against the first side hole protrusion 314 when the mold is closed.

[0044] The sole groove 313 on the second molding section 301 is used to mold the bottom of the shoe, and when the mold is closed, such as Figure 5 As shown, the bottom hole protrusion 213 abuts against the shoe sole groove 313. The through-hole structure realizes the forming of the shoe sole hole. The second forming part 301 has protruding first side hole protrusions 314 on both sides. When the mold is closed, they abut against the second side hole protrusion 106 and the third side hole protrusion 107 respectively. The through-hole structure facilitates the forming and demolding of the shoe side hole.

[0045] In some embodiments, such as Figure 2 As shown, the injection structure 400 includes a Y-shaped runner 401 disposed on the lower mold 102, a flow regulating protrusion 402 disposed on the Y-shaped runner 401, and a side runner 403 connected to the end of the Y-shaped runner 401 and communicating with the molding cavity 105.

[0046] The solution flows in from the Y-shaped flow channel 401. The flow rate adjustment protrusion 402 is set in the Y-shaped flow channel 401, which can adjust the flow rate in each molding cavity 105 individually to improve the molding accuracy. Then, it flows directly into the molding cavity 105 through the flow channel to form the solution.

[0047] 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 perforated shoe sole forming mold, characterized in that, The utility model relates to a mould structure for injection moulding, which comprises an upper mould (101), a lower mould (102), a bottom hole forming structure (200) arranged on the upper mould (101) and connected with the lower mould (102), a side hole forming structure (300) in sliding connection with the lower mould (102), and a material injection structure (400) arranged on the lower mould (102). The connecting structure (201) comprises a pull rod (204) connected with the die insert block (202) and the upper mould (101) respectively, and a first spring (205) sleeved outside the pull rod (204), and the bottom of the upper mould (101) is provided with a first spring groove (206) for accommodating the first spring (205), the top of the first spring (205) abuts against the bottom surface of the first spring groove (206) when the mould is closed, and the bottom of the first spring (205) abuts against the die insert block (202).

2. The hollowed-out sole forming mold according to claim 1, wherein: The top of the pull rod (204) is fixed on the upper mould (101), the bottom of the pull rod (204) is provided with a limiting block (207) for pulling the die insert block (202), the lower mould (102) is provided with a first groove (208) for accommodating the limiting block (207), and the bottom of the die insert block (202) is provided with a second groove (209) for accommodating the limiting block (207).

3. The kind of hollowed-out shoe sole forming die according to claim 2, characterized in that: The connecting structure (201) further comprises a guide rod (210) fixed on the upper mould (101) and penetrating through the die insert block (202), the lower mould (102) is provided with a guide rod groove (211) matched with the guide rod (210), and the die insert block (202) is provided with a guide rod through groove (212) matched with the guide rod (210).

4. The kind of hollowed-out shoe sole forming die according to any one of claims 2-3, characterized in that: ​ 5. The hollowed-out shoe sole forming mold according to claim 1, wherein: The side hole forming structure (300) comprises a slider seat (302), a first guide (303) arranged on the lower die (102) and in sliding connection with the slider seat (302), and a second guide (304) arranged on both sides of the slider seat (302) and in sliding connection with the lower die (102), and the second forming part (301) is arranged on the side of the slider seat (302) facing the mold core insert (202).

6. The kind of hollowed-out shoe sole forming die according to claim 5, characterized in that: The first guide (303) comprises a slide rod (305) inclined downward to the inside of the mold and fixed on the lower die (102), and a second spring (306) sleeved on the outside of the slide rod (305), and the inside of the slider seat (302) is provided with a second spring groove (307) for accommodating the second spring (306), one end of the second spring (306) abuts against the lower die (102), and the other end abuts against the inside of the second spring groove (307).

7. A shaped hollow shoe sole forming mold according to any one of claims 5-6, characterized in that: The second guide (304) comprises a slide convex block (308) arranged on both sides of the slider seat (302) and having the same inclination angle as the first guide (303), and the lower die (102) is provided with a slide groove matched with the slide convex block (308).

8. A shaped hollow shoe sole forming mold according to any one of claims 5-6, characterized in that: The slider seat (302) is provided with a first inclined surface (310) on the side opposite to the second forming part (301), the outside of the upper die (101) is provided with a slider stop (311), the inside of the slider stop (311) is provided with a second inclined surface (312) matched with the first inclined surface (310), when the mold is closed, the first inclined surface (310) and the second inclined surface (312) slide relative to each other, and the slider stop (311) is used to push the slider seat (302) to move to the inside of the mold.

9. The hollowed-out shoe sole forming mold according to claim 1, wherein: The second forming part (301) has a sole groove (313) for forming the bottom of the sole and a first side hole convex block (314) arranged on both sides of the sole groove (313), the first forming part (203) has a bottom hole convex block (213) abutting against the sole groove (313) when the mold is closed, the third forming part (103) has a second side hole convex block (106) abutting against the first side hole convex block (314) when the mold is closed, and the fourth forming part (104) has a third side hole convex block (107) abutting against the first side hole convex block (314) when the mold is closed.

10. The hollowed-out shoe sole forming mold according to claim 1, wherein: The material injection structure (400) comprises a Y-shaped flow channel groove (401) arranged on the lower die (102), a flow adjusting convex block (402) arranged on the Y-shaped flow channel groove (401), and a side flow channel groove (403) connected with the end of the Y-shaped flow channel groove (401) and communicating with the forming cavity (105).

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