CN-224210435-U - Self-locking type oil cylinder core-pulling mechanism of injection mold of automotive interior part

Abstract

The utility model belongs to the technical field of molds, and relates to a self-locking type oil cylinder core pulling mechanism of an injection mold of an automotive interior part. The utility model comprises an automobile interior trim part forming lower die and an automobile interior trim part forming upper die, wherein an injection molding split part is arranged above the automobile interior trim part forming upper die, an interior trim part forming convex part is arranged in the automobile interior trim part forming lower die, an interior trim part forming concave part is arranged in the automobile interior trim part forming upper die, the position of the interior trim part forming convex part corresponds to that of the interior trim part forming concave part, the shape of the interior trim part forming concave part is matched with that of the interior trim part forming concave part, and a core pulling fixing plate is arranged below the automobile interior trim part forming lower die. In the use process, the oblique core pulling rod and the straight core pulling rod in the combined core pulling structure can be synchronously driven through the self-locking oil cylinder driving structure, so that the cooperative operation of oblique core pulling and longitudinal core pulling is realized, the core pulling requirement of a complex structure of an automotive interior part is met, and the core pulling efficiency and the forming precision are improved.

Inventors

• ZHOU WEIJUN
• YANG JILONG

Assignees

• 台州市黄岩广晟模具有限公司

Dates

Publication Date

20260508

Application Date

20250526

Claims (10)

1. 1. The utility model provides an automotive interior spare injection mold auto-lock hydro-cylinder mechanism of loosing core, includes automotive interior spare shaping lower mould (1) and automotive interior spare shaping upper mould (2), its characterized in that, automotive interior spare shaping upper mould (2) top is equipped with injection moulding shunt spare (3), be equipped with interior spare shaping convex part (4) in automotive interior spare shaping lower mould (1), be equipped with interior spare shaping concave part in automotive interior spare shaping upper mould (2), interior spare shaping convex part (4) are corresponding and the shape matches the adaptation with the position of interior spare shaping concave part, automotive interior spare shaping lower mould (1) below is equipped with core pulling fixed plate (6), be equipped with combination formula core pulling structure (7) on core pulling fixed plate (6), be equipped with auto-lock hydro-cylinder actuating structure (8) between automotive interior spare shaping lower mould (1) and core pulling fixed plate (6).
2. 2. The self-locking type oil cylinder core pulling mechanism of the automobile interior trim part injection mold according to claim 1, wherein the self-locking type oil cylinder driving structure (8) comprises a limiting deviation preventing plate (9) arranged between an automobile interior trim part molding lower mold (1) and a core pulling fixing plate (6), four oil cylinders (10) are arranged above the limiting deviation preventing plate (9), and a connecting piece (11) clamped with the core pulling fixing plate (6) is arranged on a power shaft of the oil cylinders (10).
3. 3. The self-locking type oil cylinder core pulling mechanism of the automobile interior trim injection mold according to claim 2, wherein the connecting piece (11) comprises a connecting clamping head (12) arranged on a power shaft of the oil cylinder (10), four clamping head grooves (13) are formed in the core pulling fixing plate (6), and the connecting clamping head (12) is in clamping fit with the clamping head grooves (13).
4. 4. The self-locking type oil cylinder core pulling mechanism of the injection mold of the automotive upholstery according to claim 3, wherein a chuck alignment groove (14) is arranged at the bottom of the limiting anti-deviation plate (9), and the connecting chuck (12) is in sliding fit with the chuck alignment groove (14).
5. 5. The self-locking type oil cylinder core pulling mechanism of the automobile interior trim injection mold according to claim 2, wherein the combined core pulling structure (7) comprises an inclined core pulling rod (15) and a straight core pulling rod (16) which are arranged on a core pulling fixing plate (6), an auxiliary forming block (17) is arranged at the top of the inclined core pulling rod (15), and the inclined core pulling rod (15) and the straight core pulling rod (16) are arranged in a staggered mode.
6. 6. The self-locking type oil cylinder core pulling mechanism of the automobile interior trim injection mold according to claim 5, wherein a slide seat (18) is arranged on the core pulling fixing plate (6), and the bottom of the oblique core pulling rod (15) is in sliding fit with the slide seat (18).
7. 7. The self-locking type oil cylinder core pulling mechanism of the injection mold of the automotive upholstery according to claim 5, wherein the straight-pulling core rod (16) is in sliding fit with the limiting deviation preventing plate (9), a limiting sliding groove (19) is formed in the limiting deviation preventing plate (9), and the inclined-pulling core rod (15) penetrates through the limiting sliding groove (19) and is in sliding fit with the limiting sliding groove (19).
8. 8. The self-locking type oil cylinder core pulling mechanism of the automobile interior trim part injection mold according to claim 7, wherein an injection molding pore canal (20) is arranged in the automobile interior trim part molding lower mold (1), and the straight-pulling core rod (16) is arranged opposite to the injection molding pore canal (20).
9. 9. The self-locking type oil cylinder core pulling mechanism of the injection mold of the automotive interior trim part according to claim 1, wherein the injection molding split piece (3) comprises an injection molding main board (21) arranged above the upper molding (2) of the automotive interior trim part, and a split board (22) is arranged below the injection molding main board (21).
10. 10. The self-locking type oil cylinder core pulling mechanism of the injection mold of the automotive upholstery according to claim 9, wherein a plurality of injection pipes (23) are arranged at the bottom of the flow dividing plate (22).

Description

Self-locking type oil cylinder core-pulling mechanism of injection mold of automotive interior part Technical Field The utility model belongs to the technical field of molds, and relates to a self-locking type oil cylinder core pulling mechanism of an injection mold of an automotive interior part. Background In the injection molding production process of automotive interior parts, for interior parts with complex structures such as grooves, bosses and the like, a core in a mold needs to be pulled out through a core pulling mechanism so as to be smoothly demolded. The traditional core-pulling mechanism mostly adopts a single core-pulling mode, such as single inclined top core-pulling or straight top core-pulling, and is difficult to meet the multi-angle core-pulling requirement of the complex interior trim part. The partial combined core-pulling mechanism adopts mechanical linkage or a plurality of independent driving sources, but has the problems of complex structure, poor synchronism and low core-pulling precision. In addition, in the injection molding process, due to the high pressure effect of the molten material, the core pulling mechanism is easy to deviate in angle and position, so that the size precision of the interior trim part is reduced, the surface is blemished, and even the die is damaged. Therefore, there is a need for a self-locking type oil cylinder core-pulling mechanism of an injection mold of an automotive interior trim part, which can realize synchronous multidirectional core-pulling and has a reliable self-locking function so as to improve the injection molding quality and the production efficiency of the automotive interior trim part. In order to overcome the defects of the prior art, people continuously explore and put forward various solutions, for example, china patent discloses an automobile interior trim injection mold [ application number: 202010525284.1] which comprises a mounting base, wherein a mounting frame is mounted at the upper end of the mounting base, the mounting frame is of an inverted U shape, an electric push rod is mounted at the upper end of the mounting frame, a lower mold body is embedded at the upper end of the mounting base, an upper mold body matched with the lower mold body is arranged above the mounting base, a telescopic end of the electric push rod penetrates through the mounting frame and is fixedly connected with the upper end of the upper mold body, two sliding grooves are symmetrically arranged at the upper end of the mounting base, guide mechanisms for guiding the upper mold body are jointly arranged in the two sliding grooves, an injection molding opening for injection molding is formed at the upper end of the upper mold body, two transverse grooves are symmetrically arranged in the mounting base and are respectively communicated with the two sliding grooves. However, due to the high pressure of the molten material in the injection molding process, the angle and the position of the core pulling mechanism are still easy to deviate, so that the size precision of the interior trim part is reduced, the surface is blemished, and even the die is damaged. Disclosure of utility model The utility model aims to solve the problems and provides a self-locking type oil cylinder core pulling mechanism of an injection mold of an automotive interior part. In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides an automotive interior spare injection mold auto-lock hydro-cylinder mechanism of loosing core, includes automotive interior spare shaping lower mould and automotive interior spare shaping upper mould, automotive interior spare shaping upper mould top is equipped with the reposition of redundant personnel spare of moulding plastics, be equipped with interior spare shaping convex part in the automotive interior spare shaping lower mould, be equipped with interior spare shaping concave part in the automotive interior spare shaping upper mould, the position of interior spare shaping convex part and interior spare shaping concave part is corresponding and the shape matches and adapts, automotive interior spare shaping lower mould below is equipped with the fixed plate of loosing core, be equipped with combination formula core structure of loosing core on the fixed plate, be equipped with auto-lock hydro-cylinder drive structure between automotive interior spare shaping lower mould and the fixed plate of loosing core. In the self-locking type oil cylinder core pulling mechanism of the automobile interior trim injection mold, the self-locking type oil cylinder driving structure comprises a limiting deviation preventing plate arranged between the automobile interior trim molding lower mold and the core pulling fixing plate, four oil cylinders are arranged above the limiting deviation preventing plate, and a connecting piece clamped with the core pulling fixing plate is arranged on a power shaf