A forming mold for a popcorn shoe sole

CN224360518UActive Publication Date: 2026-06-16GUANGDONG ZHANSHENG DIGITAL MOULD TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG ZHANSHENG DIGITAL MOULD TECH CO LTD
Filing Date
2025-06-20
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

In the current production process of popcorn shoe soles, manual demolding is inefficient and poses safety hazards. Furthermore, human factors can lead to large errors in mold assembly, affecting the quality of the finished product.

Method used

An automatic demolding system is adopted, which includes a fixed mold assembly, a moving mold assembly, a slider assembly, and an inclined ejector assembly. Automatic demolding is achieved through the sliding of the slider assembly and the action of the inclined ejector assembly, simplifying the operation steps and ensuring the precise assembly of each module in the mold.

Benefits of technology

It significantly improves production efficiency, reduces assembly errors caused by human factors, ensures the dimensional accuracy and quality stability of finished products, and reduces safety risks for operators.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to pop -corn shoe sole mould technical field discloses a kind of forming mould for pop -corn shoe sole, including fixed mould component and moving mould;Fixed mould component is equipped with inner benevolence;Fixed mould component is equipped with the middle frame wrapped in inner benevolence;The first slider assembly and the second slider assembly for side hole forming are respectively equipped in the both sides of middle frame;Inner benevolence is equipped with hanging needle insert between middle frame, and hanging needle insert is fixedly connected with middle frame;Moving mould is equipped with lower mould on inner benevolence, and lower mould is equipped with the needle for lifting blank in;Lower mould both sides are equipped with first inclined lifting assembly and second inclined lifting assembly.When opening mould, first slider assembly, second slider assembly are respectively guided to line outwards by second slider assembly, so that first slider assembly, second slider assembly are away from the both sides of middle frame, realize the automatic demoulding of first slider assembly, second slider assembly, simplify demoulding step, effectively shorten demoulding time, significantly improve production efficiency.
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Description

Technical Field

[0001] This utility model relates to the technical field of molds for popcorn shoe soles, and in particular to a molding mold for popcorn shoe soles. Background Technology

[0002] In the modern footwear manufacturing industry, popcorn soles have become widely popular in the market due to their unique lightweight, high elasticity, and excellent cushioning performance.

[0003] Popcorn soles, with their meticulously designed internal structure, effectively disperse the impact force generated during walking or exercise, providing wearers with a more comfortable and stable foot feel. Their superior rebound performance also significantly improves athletic efficiency. Therefore, popcorn soles have gained widespread popularity in the market and are widely used in various footwear products to meet consumer demand for high-quality, high-performance footwear.

[0004] Currently, in the production process of popcorn shoe soles, after the popcorn shoe sole is produced, workers need to manually remove the mid-frame along with the finished product, separate the mid-frame, and then remove the finished product. However, the above-mentioned manual demolding method is not only inefficient, but also prone to increased internal assembly errors after mold assembly due to cumbersome operation steps, affecting the quality of subsequent finished products. At the same time, during the manual demolding process, operators need to directly contact the high-temperature mold, posing a very high risk of burns and seriously threatening the safety of operators.

[0005] Therefore, it is necessary to research a new technical solution to address the above problems. Utility Model Content

[0006] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide a molding die for popcorn shoe soles.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A molding die for popcorn shoe soles includes a fixed mold assembly and a moving mold assembly; the fixed mold assembly has an inner core; the fixed mold assembly has a middle frame that wraps around the inner core; a first slider assembly and a second slider assembly for side hole forming are respectively provided on both sides of the middle frame; a hanging pin insert for fixing the blank is provided between the inner core and the middle frame, and the hanging pin insert is fixedly connected to the middle frame;

[0009] The moving mold is provided with a lower mold corresponding to the inner core, and the lower mold is provided with a pressure pin that lifts the blank; the lower mold is provided with a first inclined ejector assembly for guiding and resetting the first slider assembly and the second slider assembly, and a second inclined ejector assembly for pulling open when the first slider assembly and the second slider assembly are opened.

[0010] As further explained, the hanging pin insert includes a first insert and a second insert; the first insert and the second insert are arranged side by side at the top of the inner core; the first insert and the second insert are respectively provided with multiple sets of hanging pins for fixing the blank; the hanging pins are respectively provided with a first spring for pulling up the blank between them and the first insert and the second insert.

[0011] As further explained, the first insert and the second insert are respectively fixedly connected to the middle frame by screws; the inner core is fixedly connected to the middle frame by screws.

[0012] As further explained, the mold assembly includes a mold plate and a mold frame; the mold plate is provided with a feed port, and the inner core is provided with a feed pipe corresponding to the feed port; the mold frame is disposed on the mold plate; the mold plate and the mold frame form a central control structure.

[0013] As a further explanation, the top of the fixed mold frame is provided with a first positioning block for positioning the middle frame, and the top of the middle frame is provided with a first positioning groove corresponding to the middle frame shovel base; a first guide post is provided between the fixed mold frame and the middle frame, and a second spring is sleeved on the first guide post, the second spring being located between the fixed mold frame and the middle frame.

[0014] As a further explanation, the fixed mold frame is provided with slide rails that are slidably connected to the first slider assembly and the second slider assembly respectively.

[0015] As further explained, the first slider assembly includes a first sliding seat and a first molding block; the first sliding seat is slidably connected to the middle frame, and the first sliding seat is provided with a first guide block corresponding to the second inclined top assembly, and the first guide block is provided with a first guide groove inclinedly; the first molding block is provided on the first sliding seat, and the first molding block is provided with a first molding part with side hole forming; the first molding block is provided with multiple sets of first positioning plates for positioning and multiple sets of first heat dissipation and drainage holes penetrating the first molding block;

[0016] The second slider assembly includes a second sliding seat and a second forming block; the second sliding seat is slidably connected to the middle frame, and the second sliding seat is provided with a second guide block corresponding to the second inclined top assembly, and the second guide block is inclinedly provided with a second guide groove; the second forming block is provided on the second sliding seat, and the second forming block is provided with a second forming part with side hole forming; the second forming block is provided with multiple sets of second positioning plates for positioning and multiple sets of second heat dissipation and drainage holes penetrating the second forming block;

[0017] The first forming part has an inwardly recessed snap-fit ​​groove; the second forming part has an outwardly protruding snap-fit ​​block; the snap-fit ​​block can enter or disengage from the snap-fit ​​groove.

[0018] As a further explanation, the middle frame is provided with through holes on both sides corresponding to the first forming part and the second forming part; the first sliding seat and the second sliding seat are respectively provided with second guide rods between them and the middle frame; a third spring is sleeved on the second guide rod, and the third spring is respectively located between the first sliding seat and the middle frame, and between the second sliding seat and the middle frame.

[0019] As further explained, the first inclined ejector assembly is configured as four groups, and the four groups of the first inclined ejector assembly are symmetrically distributed in pairs on the moving mold; the first inclined ejector assembly includes a first fixed base and a first inclined ejector block; the first fixed base is fixedly disposed on the moving mold; the first inclined ejector block is vertically disposed on the first fixed base, and the top of the first inclined ejector block is provided with an inclined portion that is inclined towards the outside of the middle frame;

[0020] The second inclined ejector assembly is configured as two sets, and the two sets of the second inclined ejector assembly are symmetrically distributed on the mold moving surface and located between the two sets of first inclined ejector assemblies on the same side; the second inclined ejector assembly includes a second fixed seat and a second inclined rod; the second fixed seat is fixedly disposed on the mold moving surface; the second inclined rod is vertically inclined on the second fixed seat.

[0021] As a further explanation, the mold transfer device is provided with multiple sets of second positioning blocks corresponding to the middle frame, and the second positioning blocks are located outside the middle frame; a fourth spring for ejecting the pressure pin is provided between the pressure pin and the mold transfer device.

[0022] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0023] By setting up a first slider assembly, a second slider assembly, a first inclined ejector assembly, and a second inclined ejector assembly, the second slider assembly guides the first and second slider assemblies outward during mold opening, moving them away from the sides of the middle frame. This achieves automatic demolding of the first and second slider assemblies, simplifying the demolding process, effectively shortening demolding time, and significantly improving production efficiency. Simultaneously, during mold closing, the first inclined ejector assembly automatically resets the first and second slider assemblies, ensuring precise assembly between modules within the mold and reducing internal assembly errors caused by human factors. This, in turn, guarantees the dimensional accuracy and quality stability of the subsequent finished products. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the overall structure of a molding die for popcorn shoe soles provided by this utility model;

[0026] Figure 2 A schematic diagram of the overall structure of the mold assembly and inner core provided by this utility model;

[0027] Figure 3 A schematic diagram of the overall structure of the inner core and the hanging pin insert provided by this utility model;

[0028] Figure 4 A schematic diagram of the overall structure of the first slider assembly, the second slider assembly, and the middle frame provided by this utility model;

[0029] Figure 5 A schematic diagram of the overall structure of the first slider assembly and the second slider assembly provided by this utility model;

[0030] Figure 6 This is a schematic diagram of the overall structure of the mold transfer mechanism provided by this utility model.

[0031] The following are the labeling elements in the figure:

[0032] 10. Fixed mold assembly; 101. Fixed mold plate; 102. Fixed mold frame; 103. Feed port; 104. First positioning block; 11. Inner core; 111. Feed tube; 12. Middle frame; 121. First positioning groove; 122. Slide rail; 123. Second guide rod; 124. Through hole;

[0033] 20. Mold transfer; 21. Lower mold; 22. Presser pin; 23. Second positioning block;

[0034] 30. First slider assembly; 301. First sliding seat; 302. First molding block; 303. First guide block; 304. First molding part; 305. First heat dissipation and drainage hole; 306. First positioning stage; 31. Second slider assembly; 311. Second sliding seat; 312. Second molding block; 313. Second guide block; 314. Second molding part; 315. Second heat dissipation and drainage hole; 316. Second positioning stage;

[0035] 40. Hanging pin insert; 41. First insert; 42. Second insert; 43. Hanging pin;

[0036] 51. First inclined top assembly; 511. First fixed seat; 512. First inclined top block; 513. Inclined part; 52. Second inclined top assembly; 521. Second fixed seat; 522. Second inclined rod. Detailed Implementation

[0037] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0038] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0039] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0042] In one embodiment of this utility model, such as Figure 1-6 As shown, a molding die for popcorn shoe soles is provided, including a fixed mold assembly 10 and a moving mold 20. The fixed mold assembly 10 has an inner core 11. A middle frame 12 is provided on the fixed mold assembly 10, enclosing the inner core 11. A first slider assembly 30 and a second slider assembly 31 for forming side holes are respectively provided on both sides of the middle frame 12. A hanging pin insert 40 for fixing the blank is provided between the inner core 11 and the middle frame 12, and the hanging pin insert 40 is fixedly connected to the middle frame 12.

[0043] The transfer mold 20 is provided with a lower mold 21 corresponding to the inner core 11, and the lower mold 21 is provided with a pressure pin 22 for lifting the blank. The lower mold 21 is provided with a first inclined ejector assembly 51 for guiding and resetting the first slider assembly 30 and the second slider assembly 31, and a second inclined ejector assembly 52 for pulling open the first slider assembly 30 and the second slider assembly 31 when the mold is opened.

[0044] In this embodiment, the fixed mold assembly 10 and the moving mold 20 are respectively locked to the machine base with screws, and the bottom end of the moving mold 20 is connected to the material gun. After the finished product is formed, the fixed mold assembly 10 and the moving mold 20 are separated from each other, and the first slider assembly 30 and the second slider assembly 31 are disengaged from the middle frame 12 under the action of the second inclined ejector assembly 52. ​​Then, the material gun drives the pressure pin 22 to push it upward, thereby realizing the automatic demolding of the finished product, simplifying the demolding steps, effectively shortening the demolding time, and significantly improving production efficiency.

[0045] By setting up a first slider assembly 30, a second slider assembly 31, a first inclined ejector assembly 51, and a second inclined ejector assembly 52, during mold opening, the second slider assembly 31 guides the first slider assembly 30 and the second slider assembly 31 outwards, causing the first slider assembly 30 and the second slider assembly 31 to move away from both sides of the middle frame 12, thus achieving automatic demolding of the first slider assembly 30 and the second slider assembly 31. This simplifies the demolding process, effectively shortens the demolding time, and significantly improves production efficiency. At the same time, during mold closing, the first inclined ejector assembly 51 automatically resets the first slider assembly 30 and the second slider assembly 31, ensuring precise assembly between modules within the mold, reducing internal assembly errors caused by human factors, and thus guaranteeing the dimensional accuracy and quality stability of the subsequent finished products.

[0046] Preferably, the hanging pin insert 40 includes a first insert 41 and a second insert 42. The first insert 41 and the second insert 42 are arranged side by side at the top of the inner core 11. Multiple sets of hanging pins 43 for fixing the blank are respectively provided in the first insert 41 and the second insert 42. A first spring (not shown in the figure) for pulling up the blank is provided between the hanging pin 43 and the first insert 41 and the second insert 42, and the first spring is located on the side of the hanging pin 43 away from the first insert 41 and the second insert 42. By setting the hanging pins 43, the blank is pre-hanged on the inner core 11 to facilitate subsequent finished product forming. At the same time, the first spring is also provided so that when feeding, the hanging pins 43 can spring outward, increasing the distance between the blank and the forming surface of the inner core 11, thereby increasing the amount of raw material entering, ensuring that the finished product can be fully formed, and improving the production quality of the finished product.

[0047] Furthermore, the first insert 41 and the second insert 42 are fixedly connected to the middle frame 12 by screws. The inner core 11 is also fixedly connected to the middle frame 12 by screws. By fixing the first insert 41, the second insert 42, and the inner core 11 to the middle frame 12 with screws, the tight fit and stability between the components of the mold are ensured, and the dimensional accuracy and consistency of the finished product are improved.

[0048] Preferably, the mold fixing assembly 10 includes a mold fixing template 101 and a mold fixing frame 102. The mold fixing template 101 has a feed inlet 103, and the inner core 11 has a feed pipe 111 corresponding to the feed inlet 103. The mold fixing frame 102 is mounted on the mold fixing template 101. A central control structure is formed between the mold fixing template 101 and the mold fixing frame 102. By setting the mold fixing template 101 and the mold fixing frame 102, stable support and positioning are provided for the mold, and the central control structure formed between the mold fixing template 101 and the mold fixing frame 102 facilitates the mounting of the inner core 11 and the middle frame 12.

[0049] Furthermore, the top of the fixed mold frame 102 is provided with a first positioning block 104 for positioning the middle frame 12, and the top of the middle frame 12 is provided with a first positioning groove 121 corresponding to the base of the middle frame 12. A first guide post (not shown in the figure) is provided between the fixed mold frame 102 and the middle frame 12. The first guide post is located on one side of the first positioning block 104 and is fixed to the middle frame 12. A second spring (not shown in the figure) is sleeved on the first guide post and is located between the fixed mold frame 102 and the middle frame 12. By setting the first positioning block 104 and the first positioning groove 121, the accurate positioning of the middle frame 12 is ensured, reducing errors caused by improper mold assembly. At the same time, the setting of the first guide post and the second spring helps the mold to move smoothly during the opening and closing process, improving production efficiency and yield quality. Moreover, when feeding, the middle frame 12 can be ejected outward a small distance by the action of the second spring to achieve the effect of opening a certain mold gap with the inner core 11, thereby increasing the amount of raw material entering.

[0050] Furthermore, the mold frame 102 is provided with slide rails 122 that are slidably connected to the first slider assembly 30 and the second slider assembly 31 respectively. By setting the slide rails 122, a stable sliding track is provided for the first slider assembly 30 and the second slider assembly 31, ensuring the smooth movement of the slider assemblies during the opening and closing process and reducing molding defects caused by friction or jamming.

[0051] Preferably, the first slider assembly 30 includes a first sliding seat 301 and a first molding block 302. The first sliding seat 301 is slidably connected to the middle frame 12, and the first sliding seat 301 is provided with a first guide block 303 corresponding to the second inclined top assembly 52. ​​The first guide block 303 is provided with a first guide groove inclinedly inside. The first molding block 302 is disposed on the first sliding seat 301, and the first molding block 302 is provided with a first molding part 304 with side hole forming. The first molding block 302 is provided with multiple sets of first positioning plates 306 for positioning and multiple sets of first heat dissipation and drainage holes 305 penetrating the first molding block 302.

[0052] The second slider assembly 31 includes a second sliding seat 311 and a second forming block 312. The second sliding seat 311 is slidably connected to the middle frame 12, and a second guide block 313 corresponding to the second inclined top assembly 52 is provided on the second sliding seat 311. A second guide groove is inclinedly provided in the second guide block 313. The second forming block 312 is provided on the second sliding seat 311, and a second forming part 314 with side holes is provided on the second forming block 312. The second forming block 312 is provided with multiple sets of second positioning plates 316 for positioning and multiple sets of second heat dissipation and drainage holes 315 penetrating the second forming block 312.

[0053] The first forming part 304 has an inwardly recessed snap-fit ​​groove. The second forming part 314 has an outwardly protruding snap-fit ​​block. The snap-fit ​​block can enter or disengage from the snap-fit ​​groove.

[0054] By setting up the first slider assembly 30 and the second slider assembly 31, and with the synergistic effect of the snap-fit ​​grooves and snap-fit ​​blocks on the first forming part 304 and the second forming part 314, the stability and consistency of the side hole forming are ensured, improving the production quality of the finished product. Furthermore, by setting up the first heat dissipation and drainage hole 305 and the second heat dissipation and drainage hole 315, good heat dissipation and drainage effects are achieved, further improving the production quality of the finished product. Simultaneously, by setting up the positioning platform, it is helpful for the precise positioning of the first slider assembly 30 and the second slider assembly 31 with the middle frame 12, reducing forming defects caused by positional deviations and improving production efficiency and the finished product qualification rate.

[0055] Furthermore, through holes 124 corresponding to the first forming part 304 and the second forming part 314 are respectively provided on both sides of the middle frame 12. Second guide rods 123 are provided between the first sliding seat 301 and the second sliding seat 311 and the middle frame 12, respectively. A third spring (not shown in the figure) is sleeved on the second guide rod 123, and the third spring is located between the first sliding seat 301 and the middle frame 12, and between the second sliding seat 311 and the middle frame 12, respectively. By setting the second guide rod 123 and the third spring, it helps the first slider assembly 30 and the second slider assembly 31 to smoothly reset during the opening and closing process, reducing mold damage or forming defects caused by improper reset, improving the durability and service life of the mold, and also ensuring the dimensional accuracy and consistency of the finished product.

[0056] Preferably, the first inclined ejector assembly 51 is configured as four groups, and the four groups of first inclined ejector assemblies 51 are symmetrically distributed in pairs on the mold transfer 20. The first inclined ejector assembly 51 includes a first fixed base 511 and a first inclined ejector block 512. The first fixed base 511 is fixedly mounted on the mold transfer 20. The first inclined ejector block 512 is vertically mounted on the first fixed base 511, and the top of the first inclined ejector block 512 is provided with an inclined portion 513 that is inclined towards the outside of the middle frame 12.

[0057] Two sets of second inclined ejector components 52 are symmetrically distributed on the mold transfer 20 and located between two sets of first inclined ejector components 51 on the same side. Each second inclined ejector component 52 includes a second fixed base 521 and a second inclined rod 522. The second fixed base 521 is fixedly mounted on the mold transfer 20. The second inclined rod 522 is vertically inclined on the second fixed base 521. By setting the symmetrical distribution and inclined design of the first and second inclined ejector components 51 and 52, the automatic opening of the first slider assembly 30 and the automatic guidance of the second slider assembly 31 during mold opening and during mold resetting are achieved. Specifically, during mold closing, the first sliding seat 301 of the first slider assembly 30 and the second sliding seat 311 of the second slider assembly 31 move inward along the inclined portion 513, and finally reach a limit position through the vertical portion of the first inclined ejector block 512, thus completing the automatic guidance of the first slider assembly 30 and the second slider assembly 31. During mold opening, the second inclined rod 522 engages with the first guide groove and the second guide groove within the first sliding seat 301 of the first slider assembly 30 and the second sliding seat 311 of the second slider assembly 31, respectively, pulling the first and second sliding assemblies outwards, thus completing the automatic opening of the first slider assembly 30 and the second slider assembly 31. This design not only simplifies the manual demolding process but also improves the opening and closing efficiency and stability of the mold. Simultaneously, it reduces mold damage or molding defects caused by improper manual operation, lowering production costs.

[0058] Preferably, the transfer mold 20 is provided with multiple sets of second positioning blocks 23 corresponding to the middle frame 12, and the second positioning blocks 23 are located outside the middle frame 12. A fourth spring (not shown in the figure) for ejecting the pressure pin 22 is provided between the pressure pin 22 and the transfer mold 20, and the fourth spring is located at the end of the pressure pin 22 away from the lower mold 21, that is, the end of the pressure pin 22. By providing the fourth spring, the pressure pin 22 can be smoothly ejected outward during feeding, pushing the blank away from the forming surface of the lower mold 21, so as to increase the amount of raw material entering, ensure that the finished product can be fully formed, and improve the production quality of the finished product. At the same time, by providing the second positioning blocks 23, the middle frame 12 is guided during mold closing, so as to facilitate the positioning between the middle frame 12 and the lower mold 21 and avoid misalignment, which would affect the production quality of the finished product.

[0059] When the mold is closed, the fixed mold assembly 10 and the moving mold assembly 20 are closed to each other. At this time, under the action of the first inclined ejector assembly 51, the first slider assembly 30 and the second slider assembly 31 move along the slide rail 122 of the middle frame 12 toward the through hole 124 of the middle frame 12, and finally the first forming part 304 of the first slider assembly 30 and the second forming part 314 of the second slider assembly 31 abut against each other inside the middle frame 12 to facilitate the subsequent forming of the side through hole 124.

[0060] During injection, the moving mold 20 will move backward a certain distance under the drive of the machine. At this time, the middle frame 12 will spring outward a certain distance under the action of the second spring, so that the middle frame 12 and the forming surface of the inner core 11 are separated by a certain mold gap, so that the raw material can be better injected. At the same time, the hanging pin in the hanging pin insert 40 on the inner core 11 will also pull the blank downward under the action of the first spring as the middle frame 12 springs up, so that the distance between the blank and the forming surface of the inner core 11 increases. Meanwhile, the pressure pin 22 in the lower mold 21 will be pushed outward under the action of the fourth spring, and push the blank away from the forming surface of the lower mold 21. This will increase the distance between the blank and the forming surface of the inner core 11 and the forming surface of the lower mold 21, respectively, increasing the amount of raw material entering, so that the finished product can be fully formed during subsequent molding, thereby improving the production quality of the finished product.

[0061] When the mold is closed, the first slider assembly 30 and the second slider assembly 31 move along the slide rail 122 of the middle frame 12 towards the sides away from the middle frame 12, and then the finished product is ejected from the mold by the material gun, thereby realizing the automatic demolding of the finished product, simplifying the demolding steps, effectively shortening the demolding time, and significantly improving production efficiency.

[0062] The above are merely preferred embodiments of the present utility model, and only specifically describe the technical principles of the present utility model. These descriptions are only for explaining the principles of the present utility model and should not be construed as limiting the scope of protection of the present utility model in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model, as well as other specific embodiments of the present utility model that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of the present utility model.

Claims

1. A molding die for popcorn shoe soles, characterized in that, It includes a fixed mold assembly and a moving mold assembly; the fixed mold assembly is provided with an inner core; the fixed mold assembly is provided with a middle frame that wraps around the inner core; a first slider assembly and a second slider assembly for side hole forming are respectively provided on both sides of the middle frame; a hanging pin insert for fixing the blank is provided between the inner core and the middle frame, and the hanging pin insert is fixedly connected to the middle frame; The moving mold is provided with a lower mold corresponding to the inner core, and the lower mold is provided with a pressure pin that lifts the blank; the lower mold is provided with a first inclined ejector assembly for guiding and resetting the first slider assembly and the second slider assembly, and a second inclined ejector assembly for pulling open when the first slider assembly and the second slider assembly are opened.

2. The molding die for popcorn shoe soles according to claim 1, characterized in that, The hanging pin insert includes a first insert and a second insert; the first insert and the second insert are arranged side by side at the top of the inner core; the first insert and the second insert are respectively provided with multiple sets of hanging pins for fixing the blank; the hanging pins are respectively provided with a first spring for pulling up the blank between them and the first insert and the second insert.

3. The molding die for popcorn shoe soles according to claim 2, characterized in that, The first insert and the second insert are fixedly connected to the middle frame by screws; the inner core is fixedly connected to the middle frame by screws.

4. The molding die for popcorn shoe soles according to claim 1, characterized in that, The mold assembly includes a mold plate and a mold frame; the mold plate is provided with a feed port, and the inner core is provided with a feed pipe corresponding to the feed port; the mold frame is disposed on the mold plate; the mold plate and the mold frame form a central control structure.

5. The molding die for popcorn shoe soles according to claim 4, characterized in that, The top of the fixed mold frame is provided with a first positioning block for positioning the middle frame, and the top of the middle frame is provided with a first positioning groove corresponding to the middle frame shovel base; a first guide post is provided between the fixed mold frame and the middle frame, and a second spring is sleeved on the first guide post, the second spring being located between the fixed mold frame and the middle frame.

6. The molding die for popcorn shoe soles according to claim 4, characterized in that, The fixed mold frame is provided with slide rails that are slidably connected to the first slider assembly and the second slider assembly respectively.

7. The molding die for popcorn shoe soles according to claim 1, characterized in that, The first slider assembly includes a first sliding seat and a first molding block; the first sliding seat is slidably connected to the middle frame, and the first sliding seat is provided with a first guide block corresponding to the second inclined top assembly, and the first guide block is inclinedly provided with a first guide groove; the first molding block is disposed on the first sliding seat, and the first molding block is provided with a first molding part with side hole forming; the first molding block is provided with multiple sets of first positioning plates for positioning and multiple sets of first heat dissipation and drainage holes penetrating the first molding block; The second slider assembly includes a second sliding seat and a second forming block; the second sliding seat is slidably connected to the middle frame, and the second sliding seat is provided with a second guide block corresponding to the second inclined top assembly, and the second guide block is inclinedly provided with a second guide groove; the second forming block is provided on the second sliding seat, and the second forming block is provided with a second forming part with side hole forming; the second forming block is provided with multiple sets of second positioning plates for positioning and multiple sets of second heat dissipation and drainage holes penetrating the second forming block; The first forming part has an inwardly recessed snap-fit ​​groove; the second forming part has an outwardly protruding snap-fit ​​block; the snap-fit ​​block can enter or disengage from the snap-fit ​​groove.

8. The molding die for popcorn shoe soles according to claim 7, characterized in that, The middle frame has through holes on both sides corresponding to the first forming part and the second forming part; the first sliding seat and the second sliding seat are respectively provided with a second guide rod between them and the middle frame; a third spring is sleeved on the second guide rod, and the third spring is respectively located between the first sliding seat and the middle frame, and between the second sliding seat and the middle frame.

9. The molding die for popcorn shoe soles according to claim 1, characterized in that, The first inclined ejector assembly is configured as four groups, and the four groups of the first inclined ejector assembly are symmetrically distributed in pairs on the moving mold; the first inclined ejector assembly includes a first fixed base and a first inclined ejector block; the first fixed base is fixedly disposed on the moving mold; the first inclined ejector block is vertically disposed on the first fixed base, and the top of the first inclined ejector block is provided with an inclined portion that is inclined towards the outside of the middle frame; The second inclined ejector assembly is configured as two sets, and the two sets of the second inclined ejector assembly are symmetrically distributed on the mold moving surface and located between the two sets of first inclined ejector assemblies on the same side; the second inclined ejector assembly includes a second fixed seat and a second inclined rod; the second fixed seat is fixedly disposed on the mold moving surface; the second inclined rod is vertically inclined on the second fixed seat.

10. The molding die for popcorn shoe soles according to claim 1, characterized in that, The mold transfer device is provided with multiple sets of second positioning blocks corresponding to the middle frame, and the second positioning blocks are located outside the middle frame; a fourth spring for ejecting the pressure pin is provided between the pressure pin and the mold transfer device.