A slide manual reset core pulling mechanism and mold

Abstract

The present invention relates to a slider manual reset core pulling mechanism and a mold. The slider manual reset core pulling mechanism comprises left and right pressure blocks and front and rear sliders, the left and right pressure blocks are fixed on the base of the mold symmetrically and are provided with corresponding slide grooves, the front and rear sliders are installed on the base symmetrically and have sliding shafts on the left and right sides that are slidably engaged in the slide grooves, so that the front and rear sliders will flip from the horizontal direction to the vertical direction under the action of their own gravity during the process of being pushed outward. The mechanism is easy to operate. After the slider is pushed out, it automatically turns vertically under the influence of gravity. When cleaning the burrs, the base acts as a positioning fixture, which facilitates the operation, reduces the occurrence of bumps and scratches, and ensures the smooth progress of production.

Description

Technical Field

[0001] The invention relates to the field of molds, and in particular to a manual reset core pulling mechanism for a slider and a liquid silicone injection mold, an oil pressure molding mold and a secondary injection molding overmolding mold having the mechanism. Background Art

[0002] The core-pulling structure of traditional molds (such as plastic molds, die-casting molds and other injection molds) is driven by mechanical transmission of the front and rear templates or by cylinders and oil cylinders outside the mold, and the core-pulling mechanism is guided and positioned by guide rails and pressure plates. This core-pulling structure of traditional molds is not suitable for liquid silicone injection molds, because in liquid silicone injection molding, the burrs produced by the overflow will wrap the core-pulling mechanism. If it is not cleaned thoroughly, it will cause actuation problems or even burn the core-pulling mechanism, making it impossible to produce normally, let alone mass production. Summary of the invention

[0003] The present invention aims to provide a slider manual reset core pulling mechanism and a liquid silicone injection mold, a hydraulic molding mold and a secondary injection molding overmolding mold with the mechanism to solve the above problems. To this end, the specific technical solutions adopted by the present invention are as follows:

[0004] According to one aspect of the present invention, a slider manual reset core pulling mechanism is provided, which includes left and right pressure blocks and front and rear sliders, the left and right pressure blocks are symmetrically fixed on the base of the mold and are provided with corresponding slide grooves, the front and rear sliders are symmetrically installed on the base and have sliding shafts slidably engaged in the slide grooves on their left and right sides, so that the front and rear sliders can flip from the horizontal direction to the vertical direction under the action of their own gravity during the process of being pushed outward.

[0005] Furthermore, the base has left and right molding cavities, a guide bar is arranged between the left and right molding cavities, and the bottom surfaces of the front and rear sliding blocks are provided with guide grooves cooperating with the guide bar.

[0006] Furthermore, the cross section of the conductive bar is rectangular.

[0007] Furthermore, the slider is provided with a flow channel leading to the forming cavity.

[0008] Furthermore, the flow channel is disposed in halves on opposite sides of the front and rear sliding blocks.

[0009] Furthermore, the lower side of the slide groove is formed by a portion of the upper surface of the base.

[0010] Furthermore, the length of the slide groove is set so that the front and rear sliding blocks just flip over when the slide shaft moves to the end of the slide groove.

[0011] According to another aspect of the present invention, there is also provided a liquid silicone injection mold having the slider manual reset core pulling mechanism as described above.

[0012] According to another aspect of the present invention, there is also provided a hydraulic molding die having the slider manual reset core pulling mechanism as described above.

[0013] According to yet another aspect of the present invention, there is also provided a secondary injection molding overmolding mold having the slider manual reset core pulling mechanism as described above.

[0014] The present invention adopts the above technical solution, and has the following beneficial effects:

[0015] 1. The slider is fixed to the base, but can be turned freely to reduce the occurrence of bumps and ensure smooth production;

[0016] 2. Easy to operate. After the slider is opened, it will automatically move vertically due to gravity. When cleaning the burrs, the base acts as a positioning fixture, which is convenient for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0018] Figure 1 is a stereoscopic diagram of a slider manual reset core pulling mechanism according to an embodiment of the present invention;

[0019] Figure 2 yes Figure 1 A partial exploded view of the slider manual reset core pulling mechanism shown;

[0020] Figure 3 yes Figure 1 A top view of the slider manually resetting the core pulling mechanism is shown;

[0021] Figure 4 is along Figure 3 A cross-sectional view of the slider manual reset core pulling mechanism taken along line AA in FIG.

[0022] Figure 5 is along Figure 3 A cross-sectional view of the slider manual reset core pulling mechanism taken along line BB in FIG.

[0023] Figure 6 After demoulding Figure 1 A three-dimensional view of the slider manual reset core pulling mechanism is shown. DETAILED DESCRIPTION

[0024] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0025] Example 1

[0026] Reference Figure 1-6 , describes a slider manual reset core pulling mechanism 1, which is a part of a liquid silicone injection mold for molding a product 100. Specifically, the slider manual reset core pulling mechanism 1 includes left and right pressure blocks 11 and front and rear sliders 12. Among them, the left and right pressure blocks 11 are fixed on the base 2 symmetrically and are provided with corresponding slide grooves 111; the front and rear sliders 12 are installed on the base 2 symmetrically and have sliding shafts 121 on their left and right sides that are slidably engaged in the slide grooves 111, so that the front and rear sliders 12 will flip from the horizontal direction to the vertical direction under the action of their own gravity during the process of being pushed outward. The pushing action can be completed manually or by semi-automatic equipment. Since the slider 12 never leaves the base 2 during this operation, there will be no accidents such as bumps, which will not affect production, and it can be cleaned together with the base 2, which is very convenient.

[0027] In the illustrated embodiment, the base 2 has left and right molding cavities 21, and a guide bar 22 is disposed between the left and right molding cavities 21. The guide bar 22 is used to cooperate with a guide groove 122 disposed on the bottom surface of the front and rear sliders 12. The matching structure of the guide bar 22 and the guide groove 122 can ensure that the slider 12 moves linearly without deviation, thereby achieving precise positioning. Preferably, the cross section of the guide bar 22 is rectangular. It should be understood that the shapes of the guide bar and the guide groove 122 are not limited to the illustrated embodiment.

[0028] The slider 12 is provided with a flow channel 123 leading to the molding cavity 21. Preferably, the flow channel 123 is disposed in half on opposite sides of the front and rear sliders 12, which is convenient for processing the flow channel. The flow channel 123 can be formed directly on the slider 12, or can be processed and formed separately and then fixed to the slider 12 (for example, by screws, etc.).

[0029] In this embodiment, the lower side of the slide groove 111 is formed by a part of the upper surface of the base 2. That is, the slide groove part on the pressing block 11 is L-shaped, which is conducive to the processing and forming of the pressing block 11 and reduces the processing cost.

[0030] Preferably, the length of the slide groove 111 is set so that when the slide shaft 121 moves to the end of the slide groove 111, the front and rear slide blocks 12 just flip over, which is convenient for operation.

[0031] The sliding shaft 121 can be directly processed and formed together with the sliding block 12, or can be processed and formed separately and then fixedly installed together with the sliding block 12, for example, through threaded connection, snap connection, interference fit, etc.

[0032] The working principle of the slider manual reset core pulling mechanism of the present invention is briefly described below: After the product is formed, the slider manual reset core pulling mechanism 1 is taken out together with the base 2, such as Figure 1 As shown, the front and rear sliders 12 are opened by semi-automatic equipment or manually, and when the slide shaft 121 moves to the end of the slide groove 111, the front and rear sliders 12 are flipped from the horizontal direction to the vertical direction under the action of their own gravity, and become a vertical standing state, as shown in FIG. Figure 6 As shown, the slider can be manually reset and the core-pulling mechanism 1 and the base 2 can be cleaned together. After cleaning, the slider 12 can be manually reset when used next time. The whole operation is very convenient, and the slider 12 does not need to be taken out, so there will be no problem of bumps.

[0033] Example 2

[0034] This embodiment provides a liquid silicone injection mold with the above-mentioned slider manual reset core pulling mechanism. The specific structure of the liquid silicone injection mold can be designed according to the product to be molded, and will not be described here.

[0035] Example 3

[0036] This embodiment provides a hydraulic molding die with a slider manual reset core pulling mechanism as described above. The specific structure of the hydraulic molding die can be designed according to the product to be molded, and will not be described here.

[0037] Example 4

[0038] This embodiment provides a secondary injection molding overmolding mold with the slider manual reset core pulling mechanism as described above. The specific structure of the secondary injection molding overmolding mold can be designed according to the product to be molded, and will not be described here.

[0039] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A slider manual reset core pulling mechanism, characterized in that: It comprises left and right pressing blocks and front and rear sliding blocks, the left and right pressing blocks are fixed on the base of the mold symmetrically and provided with corresponding sliding grooves, the front and rear sliding blocks are installed on the base symmetrically and provided with sliding shafts on the left and right sides thereof that are slidably engaged in the sliding grooves, so that the front and rear sliding blocks can be flipped from the horizontal direction to the vertical direction under the action of their own gravity during the process of being pushed outwards; The slider is provided with a flow channel leading to the forming cavity; The length of the slide groove is set so that the front and rear sliding blocks just flip over when the slide shaft moves to the end of the slide groove.

2. The slider manual reset core pulling mechanism according to claim 1, characterized in that: The base has left and right molding cavities, a guide bar is arranged between the left and right molding cavities, and a guide groove cooperating with the guide bar is arranged on the bottom surface of the front and rear sliding blocks.

3. The slider manual reset core pulling mechanism according to claim 2, characterized in that: The cross section of the conductive bar is rectangular.

4. The slider manual reset core pulling mechanism according to claim 1, characterized in that: The flow channel is disposed in halves on opposite sides of the front and rear sliding blocks.

5. The slider manual reset core pulling mechanism according to claim 1, characterized in that: The lower side of the slide groove is formed by a portion of the upper surface of the base.

6. A liquid silicone injection mold having a slider manual reset core pulling mechanism as claimed in any one of claims 1 to 5.

7. A hydraulic molding die having a slider manual reset core pulling mechanism as claimed in any one of claims 1 to 5.

8. A secondary injection molding overmolding mold having a slider manual reset core pulling mechanism as claimed in any one of claims 1 to 5.

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