Double-color discharging one-step forming die

Abstract

The utility model discloses a two-color emptying one-step forming die, which relates to the technical field of dies, and comprises a cold blank die body and an emptying die body, the cold blank die body is used for manufacturing bottom patterns in the form of an injection cold blank, and the emptying die body is used for secondary foaming forming; in the cold blank manufacturing link, the two-color upper mold and the one-color upper mold of the two-color structure are combined for foaming, so that the three-dimensional shaping of the product is realized, the two-color bottom pattern cold blank is manufactured, and the appearance and the texture of the product are enriched. Due to the detachable structural design of the cold blank mold body, parts can be flexibly replaced, the production requirements of different products are met, and the mold universality and the production efficiency are improved. And in the secondary foaming forming stage, the upper mold body and the lower mold body in the discharging mold body are matched with the inner core insert to form a sealed space for secondary foaming, so that the product is further formed, the shape and the structural stability of the product are guaranteed, and the product quality and the production flexibility and efficiency are integrally improved.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically a two-color feeding one-time forming mold. Background Technology

[0002] In the footwear manufacturing industry, as consumers pursue more diverse product appearances, higher quality, and better value for money, the design and manufacturing processes of shoe soles face continuous challenges of innovation. Traditional shoe sole manufacturing processes often struggle to simultaneously meet the combined demands of complex structural appearance, good texture, and cost control.

[0003] Early shoe sole molds mostly used injection molding with a single material and color. While this method could ensure production efficiency to a certain extent, it had limitations in creating diverse appearances and achieving special product performance. For example, soles with a single color and material could not meet the market demand for two- or multi-color designs, making the products visually unappealing and lacking in uniqueness, making it difficult to stand out in a highly competitive market.

[0004] Furthermore, traditional mold structures typically require multiple processes when producing soles with complex patterns and three-dimensional structures. This not only makes the production process cumbersome but also easily leads to dimensional deviations and quality instability during repeated processing, resulting in increased scrap rates, higher production costs, and longer production cycles. At the same time, the lack of tight coordination and cooperation between the various processes significantly impacts overall production efficiency, making it difficult to meet the demands of large-scale production.

[0005] Moreover, for some consumers who pursue high-quality soles, soles manufactured using traditional methods are also lacking in terms of texture and elasticity. For example, the sole material may not be lightweight enough, putting a greater burden on the feet when worn; its elastic recovery ability is poor, and it is prone to deformation and loss of elasticity after prolonged use, affecting the comfort and lifespan of the shoes. Utility Model Content

[0006] The purpose of this utility model is to provide a two-color feeding one-time forming mold to solve the problems mentioned in the background art.

[0007] To solve the above technical problems, this utility model provides a two-color feeding one-time molding mold, a cold blank mold body and a feeding mold body, wherein the cold blank mold body is used to make the base pattern in the form of injection cold blank, and the feeding mold body is used for secondary foaming molding.

[0008] The cold mold body includes, from top to bottom, a second lower mold body, a two-color upper mold and a one-color upper mold that are detachably arranged. The two-color upper mold and the one-color upper mold are configured with a two-color structure and are used to combine the two-color structure of foaming to form the three-dimensional shaping of the product.

[0009] The feeding mold body includes an upper mold body, a lower mold body is provided at the bottom of the upper mold body, and an inner core insert is provided between the upper mold body and the lower mold body.

[0010] Furthermore, an upper mold middle plate is provided at the bottom of the upper mold body, and the upper mold middle plate is located below the inner core insert.

[0011] Furthermore, a lower mold middle plate is provided between the upper mold body and the lower mold body, and the lower mold middle plate is located above the lower mold body.

[0012] Furthermore, a middle plate partition is provided between the upper mold body and the lower mold body, and the middle plate partition is located between the middle plate of the upper mold and the middle plate of the lower mold.

[0013] Furthermore, each of the upper mold body and the lower mold body is provided with a rear button on one side for fixing the position of the upper mold body and the lower mold body.

[0014] Furthermore, the inner core insert is made of stainless steel.

[0015] Compared with existing technologies, the beneficial effects of this utility model are as follows: In the cold blank production stage, the two-color upper mold with a two-color structure and a single-color upper mold are combined for foaming to achieve 3D three-dimensional shaping of the product, creating a two-color base pattern cold blank, enriching the product's appearance and texture. The detachable structural design of the cold blank mold body allows for flexible replacement of parts to meet the production needs of different products, improving mold versatility and production efficiency. In the secondary foaming molding stage, the upper and lower mold bodies and the inner core insert within the feeding mold body cooperate to form a sealed space for secondary foaming, promoting further product shaping, ensuring the stability of the product's shape and structure, and overall improving product quality and production flexibility and efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the mold-closing structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the upper mold in this utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the inner core insert in this utility model;

[0019] Figure 4 This is a schematic diagram of the overall structure of the upper mold plate in this utility model;

[0020] Figure 5 This is a schematic diagram of the overall structure of the lower mold in this utility model;

[0021] Figure 6 This is a schematic diagram of the overall structure of the lower mold plate in this utility model;

[0022] Figure 7 This is a schematic diagram of the overall structure of the partition plate in this utility model;

[0023] Figure 8 This is an exploded view of the feeding mold body in this utility model;

[0024] Figure 9 This is an exploded view of the cold blank mold body of this utility model.

[0025] In the picture: 1. Upper mold body; 2. First lower mold body; 3. Inner core insert; 4. Upper mold middle plate; 5. Lower mold middle plate; 8. Middle plate partition; 9. Second lower mold body; 10. Two-color upper mold; 11. One-color upper mold. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-9 This utility model provides a technical solution: a two-color feeding mold for one-time molding, a cold blank mold body and a feeding mold body, the cold blank mold body is used to make the base pattern in the form of injection cold blank, and the feeding mold body is used for secondary foaming molding.

[0028] The cold mold body includes, from top to bottom, a second lower mold body 9, a two-color upper mold 10 and a one-color upper mold 11, which are detachably arranged. The two-color upper mold 10 and the one-color upper mold 11 are set with a two-color structure and are used to combine the two-color structure of foaming to form the 3D three-dimensional shaping of the product.

[0029] The material feeding mold body includes an upper mold body 1, a lower mold body 2 at the bottom of the upper mold body 1, and an inner core insert 3 between the upper mold body 1 and the lower mold body 2.

[0030] In practice, at the start of production, the base pattern of the product is created using the cold blank mold body. The cold blank mold body consists of a second lower mold body 9, a two-color upper mold 10, and a single-color upper mold 11, which are detachably arranged from top to bottom. The two-color upper mold 10 and the single-color upper mold 11 are designed with a two-color structure. Raw material is injected into the cold blank mold body via injection, and the two-color structure of the two-color upper mold 10 and the single-color upper mold 11 allows for combined foaming within the mold. This combined foaming process achieves the initial construction of the product's 3D three-dimensional shape, forming a cold blank with a two-color base pattern. Simultaneously, the detachable structural design facilitates the replacement of mold components according to different product requirements, improving production flexibility. After the cold blank with the base pattern is created, it is transferred to the feeding mold body for secondary foaming molding. The feeding mold body includes an upper mold body 1, a lower mold body 2, and an inner core insert 3 positioned between the upper mold body 1 and the lower mold body 2. After placing the cold blank in the appropriate position, the mold is closed. The upper mold body 1 and the lower mold body 2 are closed, forming a sealed space for the inner core insert 3 and the cold blank inside. Subsequently, foaming material is injected, and secondary foaming is carried out under certain temperature and pressure conditions. The secondary foaming process further shapes the product.

[0031] See Figure 6 A lower mold middle plate 5 is provided between the upper mold body 1 and the lower mold body 2, and the lower mold middle plate 5 is located above the lower mold body 2.

[0032] In practical implementation, the lower mold plate 5 plays a crucial role in the filling process of the first material. Its surface structure and layout allow for further control over the flow direction of the first material, enabling it to be filled more precisely into specific areas. For example, it forms a uniformly thick and structurally stable base layer in different functional areas of the sole, such as the forefoot, heel, and arch. It also provides more precise control over the distribution of the first color on the sole, ensuring that the color layout meets design requirements and laying a solid foundation for the subsequent two-tone effect. The close cooperation between the upper mold body 1, the lower mold body 2, and the lower mold plate 5 not only effectively prevents material leakage but also ensures stable molding pressure, allowing the first material to be evenly filled into the corresponding parts of the cavity, forming the initial sole shape and color layout. During this process, the temperature and pressure of the mold are precisely controlled to ensure that the material flow and molding effect are at their optimal levels.

[0033] After the first material has been initially filled and shaped, the second color material is injected into the mold cavity through a separate feeding channel. Due to the presence of the lower mold plate 5, the second material flows along a pre-designed path, filling the remaining cavity space, building upon the first material. The lower mold plate 5 cleverly controls the fusion boundary between the two materials, allowing for a natural transition and fusion of the two colors in specific areas through its unique edge shape and surface texture, creating a unique two-tone effect and complex patterns.

[0034] See Figure 6 A middle plate partition 8 is provided between the upper mold body 1 and the lower mold body 2. The middle plate partition 8 is located between the upper mold middle plate 4 and the lower mold middle plate 5.

[0035] In practice, after the first material has completed its initial filling and molding, the second color material is injected into the mold cavity through a separate feeding channel. Due to the presence of the middle plate partition 8, the second material flows along a pre-designed path and fills the remaining cavity space based on the first material. The middle plate partition 8 can cleverly control the fusion boundary of the two materials by virtue of its special edge shape, flow guiding structure, and the gap formed between it and the upper mold middle plate 4 and the lower mold middle plate 5.

[0036] See Figure 4 Both the upper mold body 1 and the lower mold body 2 have a hinge on one side to fix their positions.

[0037] In practice, both the upper mold body 1 and the lower mold body 2 are equipped with a locking button on one side. These locking buttons play a crucial role in fixing the mold throughout its operation. When the mold is closed in preparation for material filling and molding, the locking buttons, through a mechanical locking mechanism, tightly fix the upper mold body 1 and the lower mold body 2 together, ensuring that the relative positions of the upper mold body 1, the lower mold body 2, and internal components such as the middle plate partition 8 and the lower mold middle plate 5 remain precise and unchanged.

[0038] refer to Figure 3 The inner core inlay 3 is made of stainless steel.

[0039] In practice, the inner core insert 3 utilizes the wear-resistant properties of stainless steel to extend its service life.

[0040] Working Principle: At the start of production, the base pattern of the product is created using the cold blank mold body. The cold blank mold body consists of a second lower mold body 9, a two-color upper mold 10, and a single-color upper mold 11, which are detachably arranged from top to bottom. The two-color upper mold 10 and the single-color upper mold 11 are designed with a two-color structure. Raw material is injected into the cold blank mold body via injection, and the two-color structure of the two-color upper mold 10 and the single-color upper mold 11 allows for combined foaming within the mold. This combined foaming process achieves the initial construction of the product's 3D three-dimensional shape, forming a cold blank with a two-color base pattern. Simultaneously, the detachable structural design facilitates the replacement of mold components according to different product requirements, improving production flexibility. After the cold blank with the base pattern is created, it is transferred to the feeding mold body for secondary foaming molding. The feeding mold body includes an upper mold body 1, a lower mold body 2, and an inner core insert 3 positioned between the upper mold body 1 and the lower mold body 2. After the cold blank is placed in the appropriate position, the mold is closed. The upper mold body 1 and the lower mold body 2 are closed, forming a sealed space for the inner core insert 3 and the cold blank inside. Subsequently, foaming material is injected, and secondary foaming is carried out under certain temperature and pressure conditions. The secondary foaming process further shapes the product.

Claims

1. A two-color feeding and one-time forming mold, characterized in that, The cold blank mold body and the feeding mold body are used to make the base pattern in the form of injection cold blank, and the feeding mold body is used for secondary foaming molding. The cold mold body includes, from top to bottom, a second lower mold body (9), a two-color upper mold (10) and a one-color upper mold (11), which are detachably arranged. The two-color upper mold (10) and the one-color upper mold (11) are set with a two-color structure and are used to combine the two-color structure of foaming to form a 3D three-dimensional shaping of the product. The material feeding mold body includes an upper mold body (1), a lower mold body (2) is provided at the bottom of the upper mold body (1), and an inner core insert (3) is provided between the upper mold body (1) and the lower mold body (2).

2. The two-color feeding one-time forming mold as described in claim 1, characterized in that: The bottom of the upper mold body (1) is provided with an upper mold middle plate (4), which is located below the inner core insert (3).

3. The two-color feeding one-time forming mold as described in claim 1, characterized in that: A lower mold middle plate (5) is provided between the upper mold body (1) and the lower mold body (2), and the lower mold middle plate (5) is located above the lower mold body (2).

4. The two-color feeding one-time forming mold as described in claim 3, characterized in that: A middle plate partition (8) is provided between the upper mold body (1) and the lower mold body (2), and the middle plate partition (8) is located between the upper mold middle plate (4) and the lower mold middle plate (5).

5. The two-color feeding one-time forming mold as described in claim 1, characterized in that: Both the upper mold body (1) and the lower mold body (2) are provided with a button on one side to fix the position of the upper mold body (1) and the lower mold body (2).

6. The two-color feeding one-time forming mold as described in claim 1, characterized in that: The inner core insert (3) is made of stainless steel.

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