Die

By designing the mold so that the slider and the upper mold can be detachably connected, and the cavity surface is polished and then separated after injection molding, the problem of line clamping caused by the discontinuity of the sliding surface and the upper mold is solved, thus improving product quality and mold reliability.

CN223972072UActive Publication Date: 2026-03-06AVATR CO LTD
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Patent Information

Application Number
CN202520339406.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-27
Publication Date
2026-03-06
Estimated Expiration
2035-02-27

AI Technical Summary

Technical Problem

In the product manufacturing process, existing molds have a gap between the sliding block and the upper mold mating surface, which leads to the wire clamping defect and affects the appearance quality of the product.

Method used

Design a mold that allows the slider to be detachably connected to the upper mold, reduces breakage by polishing the cavity surface of the slider, and disconnects the slider from the upper mold after injection molding to prevent slider undercut and ensure product integrity.

Benefits of technology

This reduces the gap at the joint between the slider and the upper mold, lowers the risk of product clamping defects, and improves the product qualification rate and the working reliability of the mold.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model relates to the technical field of molds, and discloses a mold which comprises an upper mold and a lower mold, and at least one of the upper mold and the lower mold can move in the vertical direction; the mold further comprises a sliding block, the lower mold body is suitable for being connected with the upper mold body and the sliding block to jointly define a cavity, the sliding block and the upper mold body can be detachably connected, when the upper mold body and the sliding block are connected, the mold cavity face, matched with the upper mold body, of the sliding block is polished, and when the upper mold body and the lower mold body are connected and jointly define the cavity with the sliding block, the sliding block and the upper mold body are disconnected. According to the die, the cavity surface, matched with the upper die, of the sliding block is conveniently polished, and the offset between the cavity surface, matched with the upper die, of the sliding block and the upper die can be reduced.
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Description

Technical Field

[0001] This application relates to the field of mold technology, and more particularly to a mold. Background Technology

[0002] In the existing technology, the product has cavities and other structures in its shape, which makes it necessary to set up structures such as sliders in the mold to meet the product requirements. The slider has mating surfaces with both the upper and lower molds. In order to facilitate demolding, it is easy to produce line jamming defects, which affects the appearance quality of the whole vehicle product. Utility Model Content

[0003] In view of this, the present application provides a mold that facilitates polishing the cavity surface of the slider that mates with the upper mold, thereby reducing the gap between the cavity surface of the slider and the upper mold and the upper mold.

[0004] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0005] In a first aspect, embodiments of this application provide a mold, including an upper mold and a lower mold, at least one of the upper mold and the lower mold being movable in a vertical direction; the mold further includes a slider, the lower mold being adapted to connect with the upper mold and the slider to jointly define a cavity, the slider and the upper mold being detachably connected, the slider being used to polish the cavity surface of the slider that mates with the upper mold when the upper mold and the slider are connected, and the slider and the upper mold being disconnected when the upper mold and the lower mold are connected and jointly define the cavity with the slider.

[0006] The mold provided in this application embodiment allows for detachable connection between the slider and the upper mold. When the upper mold and slider are connected, it facilitates polishing the cavity surface of the slider that mates with the upper mold, reducing the gap between the cavity surface of the slider and the upper mold, and reducing the risk of appearance defects such as line trapping at the contact point between the slider and the upper mold, thus increasing the product's pass rate. When the upper mold and lower mold are connected and together with the slider define the cavity, the slider and upper mold are disconnected, allowing the slider to slide on the lower mold during mold operation. After product injection molding is completed, the slider moves away from the cavity, preventing the slider from hooking back and avoiding impact damage to the slider when the product is removed, thus completing product manufacturing and increasing the mold's operational reliability.

[0007] In one possible implementation of this application, the upper end of the slider is provided with a limiting boss, and the lower end face of the upper mold is provided with a limiting groove that cooperates with the limiting boss.

[0008] In one possible implementation of this application, when the upper mold and the slider are connected by a fastener, the fastener passes through the limiting boss and connects to the bottom wall of the limiting groove.

[0009] In one possible implementation of this application, when the upper mold and the lower mold are closed, there is a gap between the end face of the limiting groove away from the cavity and the limiting boss.

[0010] In one possible implementation of this application, the slider is provided with an insert, which is connected to one end of the slider near the cavity.

[0011] In one possible implementation of this application, the insert is fastened to the slider.

[0012] In one possible implementation of this application, the mold further includes two pressure blocks, which are spaced apart along the width direction of the slider and fixedly connected to the lower mold. The two ends of the slider in the width direction are respectively slidably connected to the two pressure blocks along the length direction of the slider.

[0013] In one possible implementation of this application, the mold further includes a shovel base, which is fastened to the upper mold and is used to push the slider toward the cavity when the upper mold and the lower mold are closed.

[0014] In one possible implementation of this application, the mold further includes a limiting block, which is fixedly connected to the lower mold. When the upper mold and the lower mold are closed, the side wall of the limiting block abuts against the side wall of the shovel base. When the upper mold and the lower mold are open, the end of the slider away from the cavity abuts against the limiting block.

[0015] In one possible implementation of this application, the mold further includes a wear-resistant plate, which is disposed on the lower side of the slider and fixedly connected to the lower mold, and the upper end surface of the wear-resistant plate abuts against the lower end surface of the slider. Attached Figure Description

[0016] Figure 1 A front view of the mold provided in this application embodiment, excluding the upper and lower mold portions;

[0017] Figure 2 A perspective view of the mold provided in the embodiment of this application, showing the partial structure after removing the upper and lower molds;

[0018] Figure 3 A schematic diagram of the structure of the mold with the lower mold removed, provided in an embodiment of this application;

[0019] Figure 4 This is a schematic diagram from another angle of the structure of the mold with the lower mold removed, provided in an embodiment of this application.

[0020] Figure 5A right view of the mold provided in the embodiments of this application, showing the partial structure of the mold after removing the upper and lower molds;

[0021] Figure 6 A bottom view of the mold provided in the embodiment of this application, excluding the upper and lower mold portions.

[0022] Figure label:

[0023] 100. Mold;

[0024] 1. Slider; 11. Limiting boss; 12. Limiting part; 13. Insert; 2. Upper mold; 21. Cavity; 4. Fastener; 5. Pressure block; 51. Slide groove; 6. Shovel base; 7. Limiting block; 8. Wear-resistant sheet; 9. Elastic component. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0026] In the embodiments of this application, 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 indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0027] Furthermore, in the embodiments of this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the positions in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the position of the components in the accompanying drawings.

[0028] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium.

[0029] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0030] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0031] This application provides a mold. It should be noted that the mold in this application can refer to compression molds, stamping molds, die-casting molds, etc. For example, according to the molding material, the mold in this application can be a hardware mold (such as a stamping mold), a plastic mold (such as a compression mold or injection mold), or a special mold (such as a die-casting mold). In addition, the mold also requires auxiliary components such as a mold base, mold frame, mold core, and part ejection device. These components are generally made into universal types.

[0032] It should be noted that the materials of the molds are not further limited in this embodiment. Exemplarily, mold materials include steel materials (such as cold work die steel, hot work die steel, plastic mold steel, etc.), aluminum alloys, and cast iron. These materials have advantages such as high hardness, good heat resistance, and high strength, and can meet the processing requirements of different molds.

[0033] The mold provided in this application embodiment is specifically used for injection molding.

[0034] For example, some molds are injection molds, and the mold material is steel. Injection molds can quickly and mass-produce products with the same characteristics in a short time, greatly improving production efficiency. At the same time, the design and manufacture of injection molds are very flexible and can be customized according to different product requirements.

[0035] Based on this, refer to Figure 1 This application also provides a mold 100, including an upper mold 2, a lower mold and a slider 1.

[0036] To better illustrate the mold 100 provided in the embodiments of this application, at least one of the upper mold 2 and the lower mold is positioned along the vertical direction (e.g., ...). Figure 1 The lower mold (shown in the vertical direction) is movable. The lower mold is adapted to connect with the upper mold 2 and the slider 1 to jointly define the cavity 21. It can be understood that when the upper mold 2, the lower mold and the slider 1 are engaged, a cavity 21 is formed between the upper mold 2, the lower mold and the slider 1 for molding the product. After the product injection molding is completed, at least one of the upper mold 2 and the lower mold moves in the vertical direction, the mold 100 completes the mold separation, and the product can be taken out from the cavity 21 to complete the product manufacturing.

[0037] The slider 1 and the upper mold 2 can be detachably connected. When the slider 1 needs to cooperate with the upper mold 2, the slider 1 is connected to the upper mold 2. When the slider 1 needs to be separated from the upper mold 2, the slider 1 is detached from the upper mold 2.

[0038] When the upper mold 2 and the slider 1 are connected, the cavity surface of the slider 1 that mates with the upper mold 2 is polished. This can reduce the gap between the cavity surface of the slider 1 and the upper mold 2 and the upper mold 2, reduce the risk of appearance defects such as clamping lines at the mating point of the slider 1 and the upper mold 2, and increase the product qualification rate.

[0039] When the upper mold 2 and the lower mold are connected and together with the slider 1 define the cavity 21, the slider 1 and the upper mold 2 are disconnected, allowing the slider 1 to slide on the lower mold. When the mold is closed, the cavity 21 is formed between the upper mold 2, the lower mold and the slider 1 for molding the product. After the product injection is completed, at least one of the upper mold 2 and the lower mold moves in the vertical direction, and the slider 1 moves away from the cavity 21. The mold 100 completes the mold separation, and the product can be taken out from the cavity 21. This avoids the slider 1 from being hooked and avoids the slider 1 from being damaged by impact when the product is taken out, thus completing the product manufacturing and increasing the working reliability of the mold 100.

[0040] The mold 100 provided in this application embodiment allows for the detachable connection of the slider 1 and the upper mold 2. When the upper mold 2 and the slider 1 are connected, it facilitates the polishing of the cavity surface of the slider 1 that mates with the upper mold 2, reducing the gap between the cavity surface of the slider 1 and the upper mold 2, and reducing the risk of appearance defects such as clamping lines at the mating point of the slider 1 and the upper mold 2, thereby increasing the product's pass rate. When the upper mold 2 and the lower mold are connected and together with the slider 1 define the cavity 21, the slider 1 and the upper mold 2 are disconnected, allowing the slider 1 to slide on the lower mold during the operation of the mold 100. After the product injection is completed, the slider 1 moves away from the cavity 21, preventing the slider 1 from hooking back and avoiding impact damage to the slider 1 when the product is removed, thus completing the product manufacturing and increasing the operational reliability of the mold 100.

[0041] In addition, in this embodiment, the materials of the upper mold 2 and the lower mold are not limited, as long as the strength can be guaranteed.

[0042] In some embodiments of this application, reference is made to Figure 1 , Figure 2 and Figure 5 The upper end of the slider 1 is provided with a limiting boss 11, and the lower end face of the upper mold 2 is provided with a limiting groove that cooperates with the limiting boss 11. When the upper mold 2 is connected to the slider 1, the limiting boss 11 and the limiting groove can provide a certain guiding effect, making it easier for the slider 1 to be assembled into the mating position that connects with the upper mold 2, and increasing the ease of operation when the slider 1 is connected to the upper mold 2.

[0043] Furthermore, in some embodiments of this application, when the upper mold 2 and the slider 1 are connected by fasteners 4, the fasteners 4 pass through the limiting boss 11 and connect to the bottom wall of the limiting groove. The fasteners 4 can increase the reliability of the mating position of the limiting boss 11 and the limiting groove. At the same time, the fasteners 4 are easy to disassemble. When the slider 1 is connected to the upper mold 2, the position of the slider 1 is more reliable, and it is easy to remove the slider 1 from the upper mold 2.

[0044] In some embodiments of this application, such as Figure 2 and Figure 6 As shown, the mold 100 also includes a shovel base 6, which is fastened to the upper mold 2. The shovel base 6 is used to push the slider 1 toward the direction close to the cavity 21 when the upper mold 2 and the lower mold are closed. The shovel base 6 can provide a pushing force to the slider 1 to realize the sliding of the slider 1.

[0045] In addition, in some embodiments of this application, the elastic element 9 can be used to make the reset mechanism of the slider 1. Specifically, in the embodiments of this application, a spring is used to realize the movement of the slider 1 away from the cavity 21 when the mold is opened. After the product injection is completed, the slider 1 can be reliably moved away from the cavity 21, avoiding the slider 1 from being hooked back and avoiding the product from being damaged by impact when it is taken out, thus completing the production of the product and increasing the working reliability of the mold 100.

[0046] Based on this, refer to Figure 1 and Figure 2 In some embodiments of this application, when the upper mold 2 and the lower mold are closed, there is a gap between the end face of the limiting groove away from the cavity 21 and the limiting boss 11. It is understood that when the upper mold 2 and the lower mold are closed, the shovel base 6 pushes the slider 1 to move towards the cavity 21, and the side of the limiting boss 11 near the cavity 21 enters the limiting groove. The end of the limiting boss 11 away from the cavity 21 can enter the limiting groove during the sliding of the slider 1, increasing the reliability of the fit between the limiting groove and the limiting boss 11.

[0047] In some embodiments of this application, such as Figure 2As shown, the slider 1 is provided with an insert 13, which is connected to the end of the slider 1 near the cavity 21. It can be understood that the insert 13 forms the position of the complex cavity 21 on the slider 1 and is protruding. By setting the insert 13 separately, it is possible to avoid the need to replace the entire slider 1 when the protruding part is damaged, which can reduce the subsequent maintenance and manufacturing cost of the mold 100.

[0048] In some embodiments of this application, the insert 13 is fastened to the slider 1, allowing the insert 13 to be detached from the slider 1. When the slider 1 engages with the upper mold 2, the insert 13 can be removed from the slider 1, preventing the protruding insert 13 from obstructing the cavity surface of the slider 1 that engages with the upper mold 2, thus facilitating polishing of the cavity surface of the slider 1 that engages with the upper mold 2. After polishing, the insert 13 engages with the slider 1, ensuring the integrity of the cavity 21 of the mold 100. Furthermore, the disassembly of the slider 1 and the insert 13 is relatively simple and reliable.

[0049] In some embodiments of this application, such as Figures 2-4 As shown, the mold 100 also includes two pressure blocks 5, which are positioned along the width direction of the slider 1 (e.g., ...). Figure 2 The slider 1 is spaced apart from the lower mold in the first direction shown and is fixedly connected to the lower mold. The two ends of the slider 1 in the width direction are respectively connected to the two pressure blocks 5 along the length direction of the slider 1 (e.g., in the first direction shown). Figure 1 (The second direction shown) is a sliding connection. Specifically, the slider 1 has limiting parts 12 on both sides in the width direction, and the pressure block 5 has a groove 51 at the position corresponding to the limiting parts 12. The groove 51 extends along the length direction of the slider 1, and the limiting parts 12 can slide in the groove 51, so that the sliding trajectory of the slider 1 is more reliable.

[0050] In some embodiments of this application, such as Figure 1 As shown, the mold 100 also includes a limiting block 7, which is fixedly connected to the lower mold. When the upper mold 2 and the lower mold are closed, the side wall of the limiting block 7 abuts against the side wall of the shovel base 6. When the upper mold 2 and the lower mold are open, the end of the slider 1 away from the cavity 21 abuts against the limiting block 7. It can be understood that when the upper mold 2 and the lower mold are closed, the limiting block 7 can abut against the shovel base 6 to prevent the shovel base 6 from shifting position, increase the reliability of the shovel base 6's position, and prevent the slider 1 from failing to position. When the upper mold 2 and the lower mold are open, when the slider 1 moves toward the side away from the cavity 21, it can prevent the slider 1 from moving too far and prevent the slider 1 from coming off the lower mold, thus increasing the reliability of the slider 1's position.

[0051] In some embodiments of this application, such as Figure 1 and Figure 4As shown, the mold 100 also includes a wear-resistant plate 8, which is disposed on the lower side of the slider 1 and fixedly connected to the lower mold. The upper end face of the wear-resistant plate 8 abuts against the lower end face of the slider 1. The wear-resistant plate 8 can be made of a relatively wear-resistant material. When the slider 1 slides, the lower end face of the slider 1 rubs against the upper end face of the wear-resistant plate 8, preventing the slider 1 from directly damaging the lower mold when sliding. Furthermore, the positional error of the slider 1 can be avoided by replacing the wear-resistant plate 8, and the replacement cost is low.

[0052] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A mold comprising an upper mold (2) and a lower mold, at least one of the upper mold (2) and the lower mold being movable in a vertical direction; characterized in that Further comprising: a slide block (1), the lower mold being adapted to be connected with the upper mold (2) and the slide block (1) to jointly define a cavity (21), the slide block (1) and the upper mold (2) being detachably connected, when the upper mold (2) and the slide block (1) are connected, a cavity surface of the slide block (1) that is matched with the upper mold (2) being polished, when the upper mold (2) and the lower mold are connected and jointly define the cavity (21) with the slide block (1), the slide block (1) and the upper mold (2) being disconnected.

2. The mold of claim 1, wherein An upper end of the slide block (1) is provided with a limiting boss (11), and a lower end surface of the upper mold (2) is provided with a limiting groove matched with the limiting boss (11).

3. The mold of claim 2, wherein, When the upper mold (2) and the slide block (1) are connected through a fastener (4), the fastener (4) is connected through the limiting boss (11) and a bottom wall of the limiting groove.

4. The mold of claim 2, wherein, When the upper mold (2) and the lower mold are closed, a gap exists between an end surface of the limiting groove away from the cavity (21) and the limiting boss (11).

5. The mold of claim 1, wherein, The slide block (1) is provided with an insert (13), and the insert (13) is connected with an end of the slide block (1) close to the cavity (21).

6. The mold of claim 5, wherein, The insert (13) is tightly connected with the slide block (1).

7. The mold of claim 1, wherein Further comprising: two pressing blocks (5), the two pressing blocks (5) being spaced apart along a width direction of the slide block (1) and fixedly connected with the lower mold, and two ends of the slide block (1) in the width direction being respectively slidably connected with the two pressing blocks (5) in a length direction of the slide block (1).

8. The mold of claim 1, wherein Further comprising: a shovel base (6), the shovel base (6) being tightly connected with the upper mold (2), and the shovel base (6) being used to push the slide block (1) to move towards the direction close to the cavity (21) when the upper mold (2) and the lower mold are closed.

9. The mold of claim 8, wherein, Further comprising: a limiting block (7), the limiting block (7) being fixedly connected with the lower mold, a side wall of the limiting block (7) being abutted against a side wall of the shovel base (6) when the upper mold (2) and the lower mold are closed, and an end of the slide block (1) away from the cavity (21) being abutted against the limiting block (7) when the upper mold (2) and the lower mold are opened.

10. The mold of claim 1, wherein, Further comprising: a wear-resistant sheet (8), the wear-resistant sheet (8) being arranged on a lower side of the slide block (1) and fixedly connected with the lower mold, and an upper end surface of the wear-resistant sheet (8) being abutted against a lower end surface of the slide block (1).