A core-pulling structure and a mold thereof

CN224928370UActive Publication Date: 2026-11-03CHANGCHUN ZHONGTUO MOLDING TECH
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Patent Information

Application Number
CN202522321788.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-03
Publication Date
2026-11-03
Estimated Expiration
2035-11-03

AI Technical Summary

Technical Problem

After injection molding, the double-angle undercuts on the same side of the product cannot be demolded simultaneously, which requires a secondary core-pulling structure to achieve demolding.

Method used

A core-pulling structure was designed, including a first slider and a second slider. The product can be demolded at two angles on the same side through a two-stage core-pulling operation. Stable demolding is ensured by the superimposed movement of the sliders and the cooperation of components such as guide rods.

Benefits of technology

It achieves stable demolding from two angles on the same side of the product, simplifies the demolding operation, and improves the efficiency and structural stability of the mold.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a core pulling structure and mould relates to mould field, including mould kernel, support block and core pulling mechanism, and the side of mould kernel is equipped with product, and support block is located the bottom of mould kernel, and core pulling mechanism is located the side of mould kernel, and core pulling mechanism is used for the same side double angle stripping of product, and core pulling mechanism includes first sliding block and second sliding block, and first sliding block slidingly arranged in the top of support block, and second sliding block slidingly arranged in the top of first sliding block, and first sliding block and second sliding block are used for twice core pulling operation to the same side double angle stripping of product. The utility model discloses through utilize first sliding block, second sliding block, support plate, guide rod, butt joint, cooperation and the mutual cooperation of groove, and the superposition setting of first sliding block and second sliding block, and first sliding block and second sliding block respectively move in two directions of the same side to carry out twice core pulling operation, and it is convenient to realize the same side double angle stripping of product, and the structure is stable.
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Description

Technical Field

[0001] This utility model relates to the field of molds, and in particular to a core-pulling structure and its mold. Background Technology

[0002] A mold is a commonly used injection molding equipment. Molds are various molds and tools used to obtain the desired products through injection molding, blow molding, extrusion, die casting or forging, smelting and stamping. When used, molds usually have a core-pulling structure.

[0003] In some existing molds, after injection molding, the product may have double-angle undercuts on the same side. The existing core-pulling structure usually uses a single core-pulling method for demolding, which makes it impossible for the product to be demolded at the same time. Therefore, it is necessary to use a double core-pulling structure to achieve double-angle demolding on the same side of the product. Utility Model Content

[0004] The purpose of this invention is to provide a core-pulling structure and its mold to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a core-pulling structure, comprising: A mold core, the side of which is provided with the product; A support block located at the bottom of the mold core; A core-pulling mechanism, located on the side of the mold core, is used for demolding the product from the same side at two angles. The core-pulling mechanism includes: The first slider is slidably disposed on the top of the support block; The second slider is slidably disposed on top of the first slider. The first slider and the second slider are used to perform a secondary core-pulling operation to demold the product from the same side at two angles.

[0006] Preferably, the core-pulling mechanism further includes: A support plate, which is installed inside the first slider; A support plate, which is mounted on the second slider.

[0007] Preferably, a mounting post is fixedly connected to the top of the first slider, the outer wall of the mounting post is slidably inserted into the support plate, and a nut is inserted into the external thread of the mounting post.

[0008] Preferably, a guide rod is slidably inserted into the top of the second slider, a square plate is fixedly connected to the side of the guide rod, a first locking post is threadedly inserted into the square plate, and a groove is formed on the side of the guide rod.

[0009] Preferably, a connecting block is slidably inserted into the top of the second slider, and a second locking post is threadedly inserted into the top of the connecting block. The end of the second locking post is threadedly inserted into the second slider. A side plate is provided on the side of the inner wall of the second slider, and a third locking post is threadedly inserted into the side of the side plate. The end of the third locking post is threadedly inserted into the second slider.

[0010] Preferably, the top of the first slider is provided with a mating part, the side of the first slider is fixedly connected with a reinforcing rib, the side of the second slider is provided with a mating part, and the side of the mating part is provided with a groove.

[0011] Another objective of this invention is to provide a mold that includes the aforementioned core-pulling structure.

[0012] The technical effects and advantages of this utility model are as follows: This utility model utilizes the mutual cooperation of a first slider, a second slider, a support plate, a guide rod, a docking part, a mating part, and a groove. The first slider and the second slider are stacked together, and the first slider and the second slider move in two directions on the same side to perform a secondary core-pulling operation. This facilitates the demolding of the product at two angles on the same side, resulting in a stable structure and convenient demolding operation. Attached Figure Description

[0013] Figure 1 This is a front sectional view of the present invention. Figure 2 This is a schematic diagram of the structure of the first and second sliders of this utility model.

[0014] In the diagram: 1. Mold core; 2. Product; 3. Support block; 4. Core pulling mechanism; 41. First slider; 42. Second slider; 421. Mating part; 422. Groove; 43. Support plate; 44. Mounting post; 45. Nut; 46. Guide rod; 47. Groove; 48. Square plate; 49. First locking post; 410. Bearing plate; 411. Connecting block; 412. Second locking post; 413. Side plate; 414. Third locking post; 415. Connecting part; 416. Reinforcing rib. Detailed Implementation

[0015] 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.

[0016] This utility model provides, for example Figures 1-2The diagram shows a core-pulling structure.

[0017] Example 1: Includes a mold core 1, a support block 3, and a core-pulling mechanism 4. The support block 3 supports the mold core 1, and the product 2 is located on the side of the mold core 1. The support block 3 is located at the bottom of the mold core 1, and the core-pulling mechanism 4 is located on the side of the mold core 1. The core-pulling mechanism 4 is used to demold the product 2 at two angles on the same side. The core-pulling mechanism 4 includes a first slider 41 and a second slider 42. The first slider 41 and the second slider 42 are stacked. The first slider 41 and the second slider 42 move in two directions on the same side to perform a secondary core-pulling operation, which facilitates the demolding of the product 2 at two angles on the same side. The structure is stable. The first slider 41 and the second slider 42 move diagonally downward and diagonally upward, respectively, in two different directions, and are driven by a driving structure (not shown in the figure). The first slider 41 is slidably disposed on the top of the support block 3, and the second slider 42 is slidably disposed on the top of the first slider 41. The first slider 41 and the second slider 42 are used to perform a secondary core-pulling operation to demold the product 2 at two angles on the same side.

[0018] Furthermore, the top of the first slider 41 is fixedly connected to a mounting post 44, which facilitates the connection between the support plate 43 and the first slider 41. The outer wall of the mounting post 44 is slidably inserted into the support plate 43. The external thread of the mounting post 44 is threadedly inserted into a nut 45, which helps to limit the relative position of the mounting post 44 and the support plate 43.

[0019] Furthermore, a guide rod 46 is slidably inserted into the top of the second slider 42, which is beneficial for supporting the second slider 42 and guiding the oblique movement of the second slider 42. A square plate 48 is fixedly connected to the side of the guide rod 46, which is beneficial for supporting the guide rod 46. A first locking post 49 is threaded through the square plate 48, and a groove 47 is opened on the side of the guide rod 46.

[0020] Specifically, a connecting block 411 is slidably inserted into the top of the second slider 42, which is beneficial for reinforcing the connection of the second slider 42. A second locking post 412 is threadedly inserted into the top of the connecting block 411, which is beneficial for installing and disassembling the connecting block 411 and the second slider 42. The end of the second locking post 412 is threadedly inserted into the second slider 42. A side plate 413 is provided on the side of the inner wall of the second slider 42. A third locking post 414 is threadedly inserted into the side of the side plate 413. The end of the third locking post 414 is threadedly inserted into the second slider 42.

[0021] Specifically, the top of the first slider 41 is provided with a docking part 415, which facilitates cooperation with the mating part 421. The side of the first slider 41 is fixedly connected with a reinforcing rib 416, which helps to reinforce and protect the first slider 41. The side of the second slider 42 is provided with a mating part 421, and the side of the mating part 421 is provided with a groove 422.

[0022] Another objective of this invention is to provide a mold, which includes the aforementioned core-pulling structure.

[0023] Example 2: Based on Example 1, the core-pulling mechanism 4 further includes a support plate 43 and a bearing plate 410. The support plate 43 is beneficial for providing internal support to the first slider 41, and the bearing plate 410 is beneficial for supporting the second slider 42. The support plate 43 is installed inside the first slider 41, and the bearing plate 410 is installed on the second slider 42.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A core-pulling structure, characterized in that: include: Mold core (1), the side of which is provided with product (2); Support block (3), the support block (3) is located at the bottom of the mold core (1); A core-pulling mechanism (4) is located on the side of the mold core (1). The core-pulling mechanism (4) is used to demold the product (2) from the same side at two angles. The core-pulling mechanism (4) includes: The first slider (41) is slidably disposed on the top of the support block (3); The second slider (42) is slidably disposed on the top of the first slider (41). The first slider (41) and the second slider (42) are used to perform a second core-pulling operation to demold the product (2) at the same angle on the same side.

2. The core-pulling structure according to claim 1, characterized in that: The core-pulling mechanism (4) further includes: A support plate (43) is installed inside the first slider (41); The support plate (410) is mounted on the second slider (42).

3. The core-pulling structure according to claim 2, characterized in that: The top of the first slider (41) is fixedly connected to a mounting post (44), the outer wall of the mounting post (44) is slidably inserted into the support plate (43), and a nut (45) is inserted into the external thread of the mounting post (44).

4. The core-pulling structure according to claim 3, characterized in that: The top of the second slider (42) is slidably connected to a guide rod (46), and a square plate (48) is fixedly connected to the side of the guide rod (46). A first locking post (49) is threadedly connected to the square plate (48), and a groove (47) is provided on the side of the guide rod (46).

5. The core-pulling structure according to claim 4, characterized in that: The top of the second slider (42) is slidably connected to a connecting block (411), the top of the connecting block (411) is threadedly connected to a second locking post (412), the end of the second locking post (412) is threadedly connected to the second slider (42), a side plate (413) is provided on the side of the inner wall of the second slider (42), a third locking post (414) is threadedly connected to the side of the side plate (413), and the end of the third locking post (414) is threadedly connected to the second slider (42).

6. The core-pulling structure according to claim 5, characterized in that: The first slider (41) has a docking part (415) at its top, and a reinforcing rib (416) is fixedly connected to the side of the first slider (41). The second slider (42) has a mating part (421) on its side, and a groove (422) is provided on the side of the mating part (421).

7. A mold, characterized in that: The mold includes the core-pulling structure as described in any one of claims 1-6.