Slide direct-pulling type core-pulling mechanism for mold

Abstract

The utility model discloses a slide direct-pulling type core-pulling mechanism for a mold, which comprises a front mold seat and a rear mold seat, the front mold seat and the rear mold seat are respectively and fixedly provided with a front mold plate and a rear mold plate, a slide seat is arranged at the position of the rear mold plate, the slide seat is fixedly connected with a slide pulling core at the position of a product forming cavity, an inclined pressing block which is propped against the slide seat is arranged at the position of the front mold plate, and the inclined pressing block is fixedly connected with the slide seat. And an inclined guide column inclined towards the outer side is fixedly arranged at the inclined pressing block, an inclined insertion hole matched with the inclined guide column is formed in the slide seat, the inclined guide column sequentially penetrates through the slide seat and the rear mold plate during mold closing, and the bottom end of the inclined guide column is close to the rear mold bottom plate piece. According to the utility model, the number of parts of the mold is greatly reduced, the processing cost of the parts is obviously reduced, the operation failure rate of the mold is obviously reduced, the core pulling can be realized without the reverse thrust of the spring, the slide seat is not influenced by the resistance of the spring when being reset, and the overall structure of the mold is effectively simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, and particularly relates to a direct-pulling core-pulling mechanism for a mold Background Art

[0002] In the structural design of injection molds, for the case where the inclination angle α of the slider is relatively large, a "double-slider" drive design scheme is mostly adopted. As shown in the attachment Figure 2 As shown, the "double-slider" adopts a structural design in which the first slider 31 and the second slider 32 are linked. When the mold is opened, the inclined guide pillar 33 drives the second slider 32 to leave enough displacement space for the first slider 31, and then with the reverse thrust of the spring at the first slider 31, the first slider 31 is pushed towards the second slider 32, so as to realize the core-pulling action of the first slider 31 at the injection product 40. However, this structural design also has the problem of greatly increasing the number of mold parts. When the number of mold parts increases, the processing cost of the parts will increase accordingly, and the operation failure rate of the mold will also increase. Therefore, we propose a direct-pulling core-pulling mechanism for a mold. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a direct-pulling core-pulling mechanism for a mold.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: A direct-pulling core-pulling mechanism for a mold, including a front mold base and a rear mold base, the front mold base and the rear mold base are respectively fixedly provided with a front template and a rear template, a slider seat is arranged at the rear template, the slider seat is fixedly connected with the slider core-pulling at the product forming cavity, a slant block is arranged at the front template and abuts against the slider seat, a slant guide pillar that is inclined outward is fixedly arranged at the slant block, the slider seat is provided with a slant insertion hole that matches the slant guide pillar, when the mold is closed, the slant guide pillar sequentially passes through the slider seat and the rear template, and the bottom end of the slant guide pillar is close to the rear mold bottom plate part.

[0005] Further elaboration, the inclination angle α between the slider seat and the rear template ranges from 15° to 30°.

[0006] Further elaboration, a spacer part is arranged between the rear mold bottom plate part and the rear template, and a first clearance position and a second clearance position for the slant guide pillar to pass through are respectively arranged at the rear template and the spacer part.

[0007] Further elaboration, a locking pin part that penetrates the spacer part is arranged at the rear mold bottom plate part, and the locking pin part is in threaded connection with the rear template.

[0008] Further elaboration, an inclined surface that is in sliding contact with the slider seat is provided at the rear template, and the inclination angle α is the inclination angle of the inclined surface relative to the horizontal plane.

[0009] The beneficial effects of the present utility model are as follows: The number of mold parts of the present utility model is significantly reduced, the processing cost of the parts is significantly reduced, the operating failure rate of the mold is significantly decreased, and there is no need to rely on the reverse thrust of the spring to achieve core pulling. When the slider seat is reset, it will not be affected by the resistance of the spring, effectively simplifying the overall structure of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural sectional view of the present utility model.

[0011] Figure 2 It is a structural sectional view of a mold designed with a "double slider" structure.

[0012] Reference numerals in the drawings: 11, front template; 12, inclined pressure block; 13, inclined guide pillar; 21, rear template; 211, first clearance; 212, inclined surface; 22, slider seat; 221, inclined insertion hole; 23, slider core pulling; 24, rear mold bottom plate part; 25, spacer part; 251, second clearance; 26, locking nail part; 31, first slider part; 32, second slider part; 33, inclined guide pillar part; 40, injection molded product. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] To make the objectives, technical solutions, and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0014] Combined with the attached Figure 1 As shown, a slider direct core pulling mechanism for a mold includes a front mold base and a rear mold base. A front template 11 and a rear template 21 are respectively fixedly arranged on the front mold base and the rear mold base. A slider seat 22 is provided at the rear template 21. An inclined surface 212 that is in sliding contact with the slider seat 22 is provided at the rear template 21. The inclination angle α between the slider seat 22 and the rear template 21 is a wide angle. The inclination angle α is the inclination angle of the inclined surface 212 relative to the horizontal plane, and its range is 15° - 30°;

[0015] The slider seat 22 is fixedly connected to the slider core pulling 23 at the product forming cavity. An inclined pressure block 12 that abuts against the slider seat 22 is provided at the front template 11. An inclined guide pillar 13 that is inclined outward is fixedly arranged at the inclined pressure block 12. The slider seat 22 is provided with an inclined insertion hole 221 that cooperates with the inclined guide pillar 13. When the mold is closed, the inclined guide pillar 13 sequentially passes through the slider seat 22 and the rear template 21, and the bottom end of the inclined guide pillar 13 is close to the rear mold bottom plate part 24.

[0016] When the mold is opened, the front template 11 is separated from the rear template 21. The angled guide pillar 13 at the front template 11 drives the slider seat 22, and the slider seat 22 drives the slider core 23, thereby completing the core pulling action at the injection molded product 40. Compared with the existing "double slider" mold structure design, the number of mold parts in this utility model is significantly reduced, the processing cost of the parts is significantly reduced, the operation failure rate of the mold is significantly decreased, and there is no need to rely on the reverse thrust of the spring to achieve core pulling. When the slider seat 22 is reset, it will not be affected by the resistance of the spring, effectively simplifying the overall structure of the mold.

[0017] A spacer member 25 is provided between the rear mold bottom plate member 24 and the rear template 21. First clearance positions 211 and second clearance positions 251 through which the angled guide pillar 13 can pass are respectively provided at the rear template 21 and the spacer member 25. A locking pin member 26 passing through the spacer member 25 is provided at the rear mold bottom plate member 24, and the locking pin member is threadedly connected to the rear template 21.

[0018] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this utility model.

[0019] The above does not impose any limitation on the technical scope of this utility model. Any modification, equivalent change, and modification made to the above embodiments based on the technical essence of this utility model still fall within the scope of the technical solution of this utility model.

Claims

1. A sliding direct-pull core pulling mechanism for a mold, comprising a front mold base and a rear mold base, wherein the front mold base and the rear mold base are respectively fixedly provided with a front mold plate (11) and a rear mold plate (21), characterized in that: The rear template (21) is provided with a slider seat (22), and the slider seat (22) is fixedly connected to a slider core puller (23) at the product molding cavity. The front template (11) is provided with an inclined pressure block (12) that contacts the slider seat (22), and an inclined guide column (13) inclined outwardly is fixedly provided on the inclined pressure block (12). The slider seat (22) is provided with an inclined insertion hole (221) that matches the inclined guide column (13). When the mold is closed, the inclined guide column (13) passes through the slider seat (22) and the rear template (21) in sequence, and the bottom end of the inclined guide column (13) is close to the rear mold bottom plate (24).

2. A sliding direct-pull core-pulling mechanism for a mold according to claim 1, characterized in that: The inclination angle α between the sliding seat (22) and the rear template (21) ranges from 15° to 30°.

3. A sliding direct-pull core-pulling mechanism for a mold according to claim 1 or 2, characterized in that: A cushion block (25) is provided between the rear mold bottom plate (24) and the rear mold plate (21), and a first avoidance position (211) and a second avoidance position (251) for the inclined guide column (13) to pass through are respectively provided at the rear mold plate (21) and the cushion block (25).

4. A sliding direct-pull core-pulling mechanism for a mold according to claim 3, characterized in that: The rear mold bottom plate (24) is provided with a locking nail component (26) that passes through the cushion block component (25), and the locking nail component is threadedly connected to the rear mold plate (21).

5. The slide straight-pull core-pulling mechanism for a mold according to claim 2, characterized in that: The rear template (21) is provided with an inclined surface (212) in sliding contact with the sliding seat (22); the inclination angle α is the inclination angle of the inclined surface (212) relative to the horizontal plane.

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