Mold structure with movable insert

Abstract

The utility model discloses a mold structure with a movable insert, which comprises a lower mold assembly and an upper mold assembly which can be close to each other and closed, the lower mold assembly and the upper mold assembly are closed to form a cavity of an injection product, and at least one of the lower mold assembly and the upper mold assembly is detachably connected with the insert. The insert is provided with a modeling surface which extends to the cavity and is matched with the shape of the inner wall of the cavity, the insert is provided with a pattern, and the mold structure with the movable insert aims to overcome the defects in the prior art, is better in adaptability and improves the utilization efficiency of materials.

Description

Technical Field

[0001] This utility model specifically relates to a mold structure with movable inserts. Background Technology

[0002] In the injection molding industry, mold design and manufacturing play a crucial role in product quality, production efficiency, and cost control. Traditionally, for different models or series of products, especially those with similar main structures but differences in local details, manufacturers often need to design and manufacture separate molds for each specific variant. This approach not only increases mold manufacturing costs but also prolongs product development cycles, hindering rapid response to changes in market demands.

[0003] Furthermore, to ensure product precision and quality, the mold cavity typically needs to be designed strictly according to the final shape of the product. This means that any minor design adjustment may lead to the complete remaking of the mold.

[0004] For product lines that differ only in certain specific regions, this approach is clearly neither economical nor efficient, nor conducive to the rational use of resources.

[0005] This utility model was developed precisely because of the aforementioned shortcomings. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a mold structure with movable inserts that has better adaptability and improves material utilization efficiency.

[0007] This utility model is achieved through the following technical solution:

[0008] This utility model provides a mold structure with a movable insert, including a lower mold assembly and an upper mold assembly that can approach and close to each other, forming a cavity for an injection molded product. At least one of the lower mold assembly and the upper mold assembly is detachably connected to an insert. The insert has a shaped surface that extends into the cavity and matches the shape of the inner wall of the cavity, and the insert is provided with a graphic.

[0009] As described above, the mold structure with movable inserts includes an upper mold plate and an upper mold insert embedded in the upper mold plate. The bottom of the upper mold insert is provided with a cavity groove. After the lower mold assembly and the upper mold assembly are closed, the cavity groove and the lower mold assembly form a cavity. The upper mold insert is provided with an inlay through hole that communicates with the cavity. The shape of the insert matches the inlay through hole and is inserted into the inlay through hole.

[0010] As described above, in the mold structure with movable inserts, the main body of the insert is a rectangular column, and the lower end of the rectangular column is cut with a shaping surface that matches the shape of the inner wall of the cavity. In the mold structure with movable inserts as described above, the side wall of the insert is provided with identification information for manual identification.

[0011] The mold structure with movable inserts as described above further includes a lower mold fixing plate and an upper mold fixing plate that can slide up and down relative to the lower mold fixing plate. The lower mold assembly is connected to the lower mold fixing plate, and the upper mold assembly is connected to the upper mold fixing plate. The lower mold fixing plate is connected to a lifting seat that can slide up and down relative to it. The lifting seat is provided with ejector pins, and the ends of the ejector pins extend into the cavity, so that the injection-molded product can be ejected when the lifting seat moves upward.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] This invention's mold structure incorporates detachable inserts in the lower mold assembly and / or upper mold assembly. These inserts feature shaped surfaces that match the shape of the cavity wall and graphics to represent subtle differences in detail. Since only one basic mold needs to be designed for the main body of the product, and different inserts can be used to adapt to minor differences within the same product series, the need to design and manufacture complete molds for each variant is greatly reduced, thus significantly lowering mold development and production costs. This invention allows for rapid switching between different styles of inserts on the same mold base, enabling manufacturers to respond more flexibly to changes in market demand, shorten new product launch times, and support personalized customization services. The shaped surfaces on the inserts precisely match the cavity wall, ensuring a smooth and flawless surface for the molded product. Simultaneously, the graphics accurately reproduce the product's detailed features, improving the product's appearance quality and assembly precision. The detachable connection method for installing the inserts facilitates daily cleaning, inspection, and maintenance, while also simplifying mold storage management and reducing maintenance costs. Reducing unnecessary mold manufacturing indirectly lowers material consumption and energy usage, contributing to the achievement of green manufacturing goals. Attached Figure Description

[0014] Figure 1 is a three-dimensional schematic diagram of the mold structure of this utility model;

[0015] Figure 2 is an exploded view of the mold structure of this utility model;

[0016] Figure 3 is a cross-sectional schematic diagram of the mold structure of this utility model;

[0017] Figure 4 is a schematic diagram of an application example of the mold structure of this utility model. Figure 1 ;

[0018] Figure 5 is a schematic diagram of an application example of the mold structure of this utility model. Figure 2 . Detailed Implementation

[0019] The utility model will be further described below with reference to the accompanying drawings:

[0020] The orientations described in this utility model specification, such as "up," "down," "left," "right," "front," and "back," are based on the orientations in the accompanying drawings and are intended to facilitate the description of the relationships between the various components. They do not indicate the unique or absolute positional relationships between the various components, but are merely one embodiment of the utility model and are not a limitation on its implementation.

[0021] This utility model provides a mold structure with movable inserts, as shown in Figures 1 to 3. It includes a lower mold assembly 1 and an upper mold assembly 2 that can be brought close together. In this embodiment, the upper mold assembly 2 is provided with a cavity groove 221, so that after the lower mold assembly 1 and the upper mold assembly 2 are closed, the cavity groove 221 and the lower mold assembly 1 form a cavity A for injecting molten plastic material to form a product. Therefore, the upper surface of the lower mold assembly 1 can also be a flat surface. In some cases, a concave cavity groove can also be formed on the upper surface of the lower mold assembly 1. The upper mold assembly 2 is provided with a cavity boss that extends into the concave cavity groove. In these cases, it is sufficient that the lower mold assembly 1 and the upper mold assembly 2 can form a cavity A when they are closed. In this embodiment, at least one of the lower mold assembly 1 and the upper mold assembly 2 is detachably connected to an insert 3. The insert 3 has a shaping surface 31 that extends into the cavity and matches the shape of the cavity's inner wall. The insert 3 is provided with a graphic 32. By introducing a detachably connected insert 3 into the lower mold assembly 1 and / or the upper mold assembly 2, and by providing a shaping surface 31 that matches the shape of the cavity's inner wall and a graphic 32 for reflecting local detail differences, only one basic mold needs to be designed for the main body of the product. By changing different inserts to adapt to minor differences in the same series of products, the need to design and manufacture a complete mold for each variant product is greatly reduced, thereby significantly reducing mold development and production costs. This invention allows for rapid switching between different styles of inserts based on the same mold, enabling manufacturers to respond more flexibly to changes in market demand, shorten the time to market for new products, and support personalized customization services. The shaping surface on the insert precisely matches the cavity's inner wall, ensuring a smooth and flawless surface of the molded product, while the graphic 32... It can accurately reproduce the detailed features of the product, improving the appearance quality and assembly precision of the product; the use of detachable connection to install the inserts facilitates daily cleaning, inspection and maintenance, while also simplifying the mold storage management process and reducing maintenance costs; reducing unnecessary mold making indirectly reduces material consumption and energy use, which helps to achieve the goal of green manufacturing.

[0022] In detail, as shown in Figures 2 and 3, the upper mold assembly 2 includes an upper template 21 and an upper mold insert 22 embedded in the upper template 21. The upper mold insert 22 has a cavity groove 221 at its bottom. The lower mold assembly 1 includes a lower template 11 and a lower mold insert 12 embedded in the lower template 11. The upper surface of the lower mold insert 12 has a cavity boss 121 protruding into the cavity groove 221. After the lower mold assembly 1 and the upper mold assembly 2 are closed, the cavity groove 221 and the cavity boss 121 form a cavity. Of course, the upper surface of the lower mold insert 12 can also be a flat surface. The upper mold insert 22 has an inlay through hole 222 communicating with the cavity. The insert 3 matches the shape of the inlay through hole 222 and is inserted into the inlay through hole 222. When replacing the insert 3, simply remove the insert 3 from the inlay through hole 222. Alternatively, the insert 3 can be pushed downwards from the middle, or the insert 3 can be pushed upwards from the insert through hole 222 after the upper mold insert 22 is disassembled. In order to make the structure more stable, the insert through hole 222 and the insert 3 can be interference-fitted, which facilitates the disassembly and installation of the insert 3 and improves the efficiency of changing parts.

[0023] As a further preferred embodiment, as shown in Figure 3, it includes a lower mold fixing plate 4 and an upper mold fixing plate 5 that can slide up and down relative to the lower mold fixing plate 4. The lower mold assembly 1 is connected to the lower mold fixing plate 4, and the upper mold assembly 2 is connected to the upper mold fixing plate 5. The lower mold fixing plate 4 is connected to a lifting seat 6 that can slide up and down relative to it. The lifting seat 6 is provided with an ejector pin 7, the end of which extends to the cavity. Thus, when the lifting seat 6 moves upward, it can eject the injection-molded product. By arranging the insert 3 in the upper mold assembly 2 and the ejector pin 7 in the lower mold assembly 1, the mold structure becomes more compact and the structure is more reasonable.

[0024] In detail, as shown in Figure 2, the main body of the inlay 3 is a rectangular column, and the lower end of the rectangular column is cut out with a shaping surface 31 that matches the shape of the inner wall of the cavity.

[0025] In detail, as shown in Figure 2, the side wall of the inlay 3 is provided with identification information 33 for manual identification.

[0026] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A mold structure with movable inserts, comprising a lower mold assembly (1) and an upper mold assembly (2) capable of closing close to each other, the two closing to form a cavity for an injection-molded product, characterized in that: At least one of the lower mold assembly (1) and the upper mold assembly (2) is detachably connected to an insert (3), the insert (3) having a shaped surface (31) extending into the cavity and matching the shape of the inner wall of the cavity, and the insert (3) having a graphic (32).

2. The mold structure with movable inserts according to claim 1, characterized in that: The upper mold assembly (2) includes an upper template (21) and an upper mold insert (22) embedded in the upper template (21). The upper mold insert (22) has a cavity groove (221) at its bottom. After the lower mold assembly (1) and the upper mold assembly (2) are closed, the cavity groove (221) and the lower mold assembly (1) form a cavity. The upper mold insert (22) has an inlay through hole (222) that communicates with the cavity. The inlay (3) matches the shape of the inlay through hole (222) and is inserted into the inlay through hole (222).

3. The mold structure with movable inserts according to claim 1, characterized in that: The main body of the inlay (3) is a rectangular column, and the lower end of the rectangular column is cut out with a shaped surface (31) that matches the shape of the inner wall of the cavity.

4. The mold structure with movable inserts according to claim 1, characterized in that: The sidewall of the inlay (3) is provided with identification information (33) for manual identification.

5. The mold structure with movable inserts according to claim 2, characterized in that: It also includes a lower mold fixing plate (4) and an upper mold fixing plate (5) that can slide up and down relative to the lower mold fixing plate (4). The lower mold assembly (1) is connected to the lower mold fixing plate (4), and the upper mold assembly (2) is connected to the upper mold fixing plate (5). The lower mold fixing plate (4) is connected to a lifting seat (6) that can slide up and down relative to it. The lifting seat (6) is provided with an ejector pin (7). The end of the ejector pin (7) extends to the cavity, so that the injection-molded product can be ejected when the lifting seat (6) moves upward.

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