CN215703732U

CN215703732U - Processing die for shoe heels

Info

Publication number: CN215703732U
Application number: CN202122263779.4U
Authority: CN
Inventors: 李培勇
Original assignee: Dongguan Yonghong Mould Co ltd
Current assignee: Dongguan Yonghong Mould Co ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-02-01
Anticipated expiration: 2031-09-17

Abstract

The utility model belongs to the technical field of forming dies for shoe heels, and particularly relates to a machining die for shoe heels. The die cover plate, the upper die base, the lower die base, the die pad feet and the die bottom plate are sequentially arranged in an overlapping mode from top to bottom. The sliding block type die body outer core structure can be matched with the die body inner core to carry out rapid alignment, the two die outer cores are arranged in a back-to-back mode and matched with the two opposite sliding grooves to complete machining production of left and right heel heels; and the space of the lower die seat can be fully utilized; the benevolence is printed by metal D and is formed in the die body to have a plurality of ventilative pores, can solve and punch and install the problem that mode such as ventilative pin is wasted time and energy, utilize the mould that D printed simultaneously when the shaping product, can not form the structure of surperficial protruding shape in the pin position.

Description

Processing die for shoe heels

Technical Field

The utility model belongs to the technical field of forming molds of shoe heels, and particularly relates to a machining mold of a shoe heel.

Background

Along with the improvement of living standard of people, people have different demands on styles and brands required by shoes, and the consumption of the shoes is more and more. The sole is an important component of the shoe, the sole is made of rubber, and the sole must have wear resistance, good elasticity, water resistance, comfort and light flexibility, so that the foamed sole is a material applied at present, the most commonly used manufacturing method at present comprises a plastic suction process, plastic suction belongs to one of plastic processing processes, the main principle is that after a flat plastic hard sheet is heated and softened, the plastic hard sheet is absorbed on the surface of a mould in vacuum, and the plastic hard sheet is cooled and formed, so that the sole is widely applied to industries such as plastic packaging, lamp decoration, advertisement and decoration.

The plastic suction forming mold is used for plastic suction forming production, and common plastic suction forming molds comprise plaster molds, electroplated copper molds, aluminum molds and the like, wherein the lowest cost is that the plastic suction forming mold comprises the plaster mold, and the most expensive is the aluminum mold. In the product manufacturing process, in order to improve the product buffering effect or the shock absorption effect, some foaming materials including EVA, PU, TPU and the like are often used, and the materials are applied to the aspects of shoe materials, hoses, cable sheaths, films, synthetic leather, mobile phone covers, rollers, automobile accessories, adhesives, textile coatings, labels and the like. In the manufacturing process of the sole, the materials can be used, and in some brands of shoes, PU materials are also selected as one of the main materials for manufacturing the sole and the sole of the sports shoe.

Along with the demand of diversified production of soles, some soles often need to be added with decorative edges of other colors or other materials, and in the production process of sole components such as soles or heels of the soles, because a large amount of air is filled in a mould, in the exhaust process, if the exhaust positions are unevenly distributed, the surface of the sole is uneven or partial positions of the sole are unfilled, so that the production efficiency of the soles or the components thereof is seriously reduced, and the qualification rate of the soles or the components thereof is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the existing mold has a unfilled corner when the sole heel is produced by injection molding, the scheme provides a processing mold for the sole heel.

The technical scheme adopted by the utility model is as follows:

a mold for processing a heel of a shoe sole comprises a lower mold seat, two mold body inner kernels and two mold body outer kernels; the center of the lower die base is provided with a central part, a first cavity is arranged in the central part, a second exhaust hole is arranged at the upper part of the central part, and the first cavity is communicated with the second exhaust hole; two opposite sides of the central part are respectively provided with a sliding chute;

the mold body inner core is profiled on the heel, one side of the mold body inner core close to the central part is provided with a second cavity, and one side of the mold body inner core back to the central part is provided with an inner forming surface for forming the inner side surface of the heel of the sole; a plurality of air-permeable pores are arranged on the inner molding surface, and all the air-permeable pores are communicated with the second cavity; when the inner core of the die body is arranged at the end part of the corresponding sliding chute and is fixedly connected with the central part, the second cavity is communicated with the first cavity;

the outer core of the die body is arranged in the corresponding sliding groove in a sliding manner, and an outer molding surface for molding the outer side surface of the heel of the sole is arranged on one surface of the outer core of the die body, which faces the inner core of the die body; the outer molding surface and the inner molding surface are matched to form a molding cavity, and the molding cavity is used for molding the heel of the sole; and two injection branch flow holes are formed in the lower die seat and are respectively communicated with the corresponding forming cavities so as to perform injection molding in the forming cavities.

As a complementary design or alternative structure of this solution: the bottom of the lower die base is connected with two strip-shaped die pad feet, and a die bottom plate is arranged below the die pad feet.

As a complementary design or alternative structure of this solution: an upper die base and a die cover plate are arranged above the lower die base, a T-shaped injection runner is arranged on the upper surface of the upper die base, two ends of the injection runner are respectively provided with a shunting port, and the shunting ports correspond to the injection branch flow holes; the die cover plate can be arranged on the upper die base in an overlapping mode.

As a complementary design or alternative structure of this solution: a main injection molding port is arranged at the center of the mold cover plate and corresponds to the third end of the injection molding runner; the total injection molding port is communicated with the two branch ports through an injection molding runner.

As a complementary design or alternative structure of this solution: the center of last mould seat is provided with first exhaust hole, and the position of first exhaust hole corresponds with the second exhaust hole, and first exhaust hole is coaxial to be set up in the center department of total mouth of moulding plastics.

As a complementary design or alternative structure of this solution: the side of the die body outer core, which is back to the die body inner core, is provided with a slope surface, the edge of the upper die base of the die cover plate is provided with an inclined pushing part, and when the upper die base covers the lower die base, the inclined pushing part pushes the die body outer core to slide through the slope surface.

As a complementary design or alternative structure of this solution: the two forming cavities are respectively used for forming the heel of the left sole and the heel of the right sole.

As a complementary design or alternative structure of this solution: the mold body inner core is formed by 3D printing of a metal material.

The utility model has the beneficial effects that:

1. the sliding block type mold body outer core structure can be matched with the mold body inner core to carry out rapid alignment, so that rapid production and qualified rate of heels of the soles are guaranteed; moreover, the two mould outer cores are arranged in a back-to-back manner and are matched with two opposite sliding grooves to finish the processing production of the left and right heel; and the space of the lower die seat can be fully utilized;

2. the mold body inner core is formed by 3D printing of metal, the problems that punching and installing of the breathable pins are time-consuming and labor-consuming can be solved, and meanwhile, when the 3D printing mold is used for forming products, a structure with a surface protruding shape cannot be formed at the positions of the pins;

3. evenly arrange ventilative pore on the mould body inner core in this scheme, can make remaining air in the shaping intracavity can be got rid of completely when moulding plastics, guarantee that the sole heel of producing does not have unfilled corner and the surface is smooth.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is an overall structure diagram of a processing mold for a sole heel in the scheme;

FIG. 2 is a schematic view of the structure of the lower mold base, the inner core of the mold body, the outer core of the mold body, etc.;

FIG. 3 is a schematic view of the structure of the upper mold base, the mold cover plate, etc.;

FIG. 4 is a schematic view of a die body core.

In the figure: 1-upper die base; 11-injection molding runner; 12-a shunt port; 13-a first venting aperture; 14-a slanted push part; 2-lower die base; 21-injection molding branch flow holes; 22-a central part; 23-a second vent; 3-mold inner core; 31-an inner forming surface; 32-air-permeable pores; 4-mold outer core; 41-an outer forming surface; 5-die pad feet; 6-a mould bottom plate; 7-a mould cover plate; 71-Total injection Port.

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the accompanying drawings, and the described embodiments are only a part of the embodiments, but not all embodiments, and all other embodiments obtained by those skilled in the art without creative efforts will belong to the protection scope of the present solution based on the embodiments in the present solution.

Example 1

As shown in fig. 1 to 4, the present embodiment designs a mold for processing a heel of a shoe sole, which includes a lower mold base 2, two mold body inner cores 3, two mold body outer cores 4, an upper mold base 1, a mold foot pad 5, a mold bottom plate 6, a mold cover plate 7, and the like. Wherein, the die cover plate 7, the upper die base 1, the lower die base 2, the die pad 5 and the die bottom plate 6 are sequentially arranged in an overlapping manner from top to bottom.

The mold cover plate 7 is in a square plate shape, and a circular main injection port 71 is provided in the middle of the mold cover plate 7.

The upper die base 1 is in a square plate shape, the injection molding runner 11 in a T shape is arranged on the upper surface of the upper die base 1, two ends of the injection molding runner 11 are respectively provided with a flow dividing port 12, the third end of the injection molding runner 11 corresponds to a total injection molding port 71 of the die cover plate 7, the third end of the injection molding runner 11 is also provided with a first exhaust hole 13, and the first exhaust hole 13 corresponds to the center of the total injection molding port 71. Two sides of the lower surface of the upper die base 1 are respectively provided with an inclined pushing part 14.

The center of the lower die base 2 is provided with a central portion 22, and two sides of the central portion 22 are provided with a sliding chute, and the two sliding chutes are positioned on the same straight line. A first cavity is arranged in the central part 22, a second exhaust hole 23 is arranged at the upper part of the central part 22, and the first cavity is communicated with the second exhaust hole 23; the position of the second exhaust hole 23 corresponds to the position of the first exhaust hole 13, so that the air in the first cavity is exhausted through the second exhaust hole 23 and the first exhaust hole 13 in sequence.

Two injection branch flow holes 21 are arranged at the corners of the lower die base 2, the positions of the two injection branch flow holes 21 correspond to the positions of the branch flow ports 12 on the upper die base 1, and the molten plastic flowing out of the branch flow ports 12 can be injected into the corresponding injection branch flow holes 21.

The inner mold body 3 is arranged in the two sliding grooves of the lower mold base 2, the inner mold body 3 is arranged on the heel in a copying mode, a second cavity is formed in one side, close to the central portion 22, of the inner mold body 3, an inner molding surface 31 used for molding the inner side surface of the heel of the sole is arranged on one side, back to the central portion 22, of the inner mold body 3, a plurality of air-permeable pores 32 are formed in the inner molding surface 31, and all the air-permeable pores 32 are communicated with the second cavity. When the mold body inner core 3 can be arranged at the end part of the corresponding sliding chute and is fixedly connected with the central part 22, the second cavity is communicated with the first cavity. The mold body inner core 3 is formed by 3D printing of a metal material.

Two sliding chutes of the lower die base 2 are respectively provided with an outer die core 4, and the outer die core 4 is arranged in the corresponding sliding chute in a sliding manner, so that the outer die core 4 can be far away from or close to the inner die core 3; an outer molding surface 41 for molding the outer side surface of the heel of the sole is arranged on one surface of the die body outer core 4 facing the die body inner core 3. The outer shaping surface 41 cooperates with the inner shaping surface 31 to form a shaping cavity for shaping said heel. And two injection branch flow holes 21 arranged on the lower die base 2 are respectively communicated with the corresponding molding cavities, and molten plastic can be injected into the corresponding molding cavities through the injection branch flow holes 21, so that injection molding is realized. The two forming cavities are respectively used for forming the heel of the left sole and the heel of the right sole.

A slope surface is arranged on one side of the die body outer core 4, which is back to the die body inner core 3, an inclined pushing part 14 is arranged at the edge of the upper die base 1 of the die cover plate 7, and when the upper die base 1 covers the lower die base 2, the inclined pushing part 14 pushes the die body outer core 4 to slide through the slope surface.

The bottom of the lower die base 2 is connected with two strip-shaped die pad feet 5, the length of the two die pad feet 5 is equal to that of the lower die base 2, and the two die pad feet 5 are respectively connected to the edge of the bottom of the lower die base 2.

When in use, the injection molding pipeline and the exhaust pipeline can be arranged at the injection molding opening 71. The injection molding pipeline and the exhaust pipeline are coaxially arranged, the injection molding pipeline is sleeved outside the exhaust pipeline, at the moment, when the injection molding pipeline positioned on the outer layer is communicated with the injection molding runner 11, molten plastic can sequentially pass through the injection molding runner 11, the flow dividing port 12 and the injection molding branch flow hole 21 to be injected into a corresponding molding cavity, and air in the formed cavity can sequentially pass through the air-permeable pore 32, the second cavity, the first cavity, the second exhaust hole 23 and the exhaust pipeline into which the first exhaust hole 13 is discharged from the mold body inner core 3.

After the heel of the sole in the cavity is formed, the upper die seat 1 is lifted, and then the outer core 4 of the die body is pulled out along the sliding groove, so that the heel of the sole to be formed can be obtained.

The above examples are merely for clearly illustrating the examples and are not intended to limit the embodiments; and are neither required nor exhaustive of all embodiments. And obvious variations or modifications of this technology may be resorted to while remaining within the scope of the technology.

Claims

1. A mold for processing heels of soles is characterized in that: comprises a lower die base (2), two die body inner cores (3) and two die body outer cores (4); a central part (22) is arranged at the center of the lower die base (2), a first cavity is arranged in the central part (22), a second exhaust hole (23) is arranged at the upper part of the central part (22), and the first cavity is communicated with the second exhaust hole (23); two opposite sides of the central part (22) are respectively provided with a sliding chute;

the die body inner core (3) is modeled on the heel, one side of the die body inner core (3) close to the central part (22) is provided with a second cavity, and one side of the die body inner core (3) back to the central part (22) is provided with an inner molding surface (31) for molding the inner side surface of the heel of the sole; a plurality of air-permeable pores (32) are arranged on the inner molding surface (31), and all the air-permeable pores (32) are communicated with the second cavity; when the die body inner core (3) is arranged at the end part of the corresponding sliding chute and is fixedly connected with the central part (22), the second cavity is communicated with the first cavity;

the mold body outer core (4) is arranged in the corresponding sliding groove in a sliding manner, and an outer molding surface (41) for molding the outer side surface of the heel of the sole is arranged on one surface, facing the mold body inner core (3), of the mold body outer core (4); the outer molding surface (41) and the inner molding surface (31) are matched to form a molding cavity, and the molding cavity is used for molding the heel of the sole; two injection branch flow holes (21) are formed in the lower die base (2), and the injection branch flow holes (21) are communicated with the corresponding forming cavities respectively so as to inject the injection into the forming cavities.

2. A mold for forming a heel for footwear according to claim 1, wherein: the bottom of the lower die base (2) is connected with two strip-shaped die pad feet (5), and a die bottom plate (6) is arranged below the die pad feet (5).

3. A mold for forming a heel for footwear according to claim 1, wherein: an upper mold base (1) and a mold cover plate (7) are arranged above the lower mold base (2), a T-shaped injection flow channel (11) is arranged on the upper surface of the upper mold base (1), two ends of the injection flow channel (11) are respectively provided with a shunt opening (12), and the shunt opening (12) corresponds to the injection branch flow hole (21); the die cover plate (7) can be overlapped on the upper die base (1).

4. A mold for forming a heel for footwear according to claim 3, wherein: a main injection molding port (71) is arranged at the center of the mold cover plate (7), and the main injection molding port (71) corresponds to the third end of the injection molding runner (11); the main injection molding port (71) is communicated with the two branch ports (12) through an injection molding runner (11).

5. A mold for forming a heel for footwear according to claim 3, wherein: a first exhaust hole (13) is formed in the center of the upper die base (1), the position of the first exhaust hole (13) corresponds to that of the second exhaust hole (23), and the first exhaust hole (13) is coaxially arranged in the center of the main injection molding opening (71).

6. A mold for forming a heel for footwear according to claim 3, wherein: a slope surface is arranged on one side, back to the die body inner core (3), of the die body outer core (4), an inclined pushing portion (14) is arranged at the edge of the upper die base (1) of the die cover plate (7), and when the upper die base (1) covers the lower die base (2), the inclined pushing portion (14) pushes the die body outer core (4) to slide through the slope surface.

7. A mold for forming a heel for footwear according to claim 1, wherein: the two forming cavities are respectively used for forming the heel of the left sole and the heel of the right sole.

8. A mold for forming a heel for footwear according to claim 1, wherein: the die body inner core (3) is formed by 3D printing of a metal material.