CN212736873U

CN212736873U - Movable ejector pin type injection mold with sliding block

Info

Publication number: CN212736873U
Application number: CN202021158717.6U
Authority: CN
Inventors: 何志武
Original assignee: Suzhou Hillin Machinery Technology Co ltd
Current assignee: Suzhou Hillin Machinery Technology Co ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-03-19
Anticipated expiration: 2030-06-22

Abstract

The utility model discloses a slide block movable thimble type injection mold, which comprises a fixed mold and a movable mold, wherein an injection mold cavity is arranged between the fixed mold and the movable mold, a chute is arranged on the fixed mold, and a movable slide block is movably clamped on the chute; a fixed seat is arranged on the movable sliding block; one side of the fixed seat is connected with a beryllium copper insert, and the beryllium copper insert extends into the injection molding cavity; the beryllium copper insert is made of beryllium copper; a thimble body is arranged in the fixed seat and the beryllium copper insert; a spring is sleeved on the thimble body; a thimble groove matched with the thimble body is arranged on the movable mould; a guide post seat is arranged on the movable die; an inclined guide post is arranged on the guide post seat. The utility model realizes the surface molding of the complex molded surface of the injection molding product through the beryllium copper insert, can reduce the processing difficulty of the injection mold and has good heat conduction effect; through setting up movable thimble body, in beryllium copper mold insert and injection moulding product separation process, avoid injection moulding product to appear pulling, improve injection moulding product's yields.

Description

Movable ejector pin type injection mold with sliding block

Technical Field

The utility model relates to an injection mold field, in particular to slider activity thimble type injection mold.

Background

The injection mold is an important process device for producing various industrial products, and along with the rapid development of the plastic industry and the popularization and application of plastic products in the industrial departments of aviation, aerospace, electronics, machinery, ships, automobiles and the like, the application range of the injection mold is more and more extensive. An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a processing method used for mass production of parts with complex shapes, and particularly relates to a method for injecting heated and melted plastic into a mold cavity from an injection molding machine at high pressure, and obtaining a formed product after cooling and solidification. Part injection moulding product is because the profile structure is complicated, and on the one hand easily leads to the quality of moulding plastics of profile poor, and on the other hand is because the profile is unsmooth, and the product cooling shaping back, and the cohesion between the mould benevolence is big, easily leads to the product to appear pulling during the drawing of patterns, influences the quality of product.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, the utility model provides a slider activity thimble type injection mold adopts beryllium copper mold insert and thimble body cooperation, has solved partial injection moulding product because the profile structure is complicated, and it is poor to have the quality of moulding plastics that easily leads to the profile on the one hand, and on the other hand is because the profile is unsmooth, after product cooling shaping, and cohesion between the mould benevolence is big, easily leads to the product to appear pulling during the drawing of patterns, influences the problem of the quality of product.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: a sliding block movable thimble type injection mold comprises a fixed mold and a movable mold which are matched with each other, wherein an injection mold cavity is arranged between the fixed mold and the movable mold, a sliding groove is formed in the fixed mold, and a movable sliding block is movably clamped on the sliding groove and moves along the sliding groove; a fixed seat is arranged on the movable sliding block; one side of the fixed seat is connected with a beryllium copper insert, and the beryllium copper insert extends into the injection molding cavity; the beryllium copper insert is made of beryllium copper; a thimble body is arranged in the fixed seat and the beryllium copper insert; the thimble bodies are multiple; the tail end of the ejector pin body penetrates out of the fixed seat, and the front end of the ejector pin body penetrates out of the beryllium copper insert; a spring is sleeved on the thimble body; the spring pushes the thimble body towards the direction of the tail end of the thimble body; the movable die is provided with a thimble groove matched with the thimble body; a guide pillar seat is arranged on the movable die; an inclined guide post is arranged on the guide post seat; and the movable sliding block is provided with a guide post hole matched with the inclined guide post.

As a preferred scheme of the utility model, one side of the fixed seat far away from the beryllium copper mold insert is an inclined plane; and the guide post seat is provided with an abutting inclined plane matched with the fixed seat.

As an optimized proposal of the utility model, the thimble bodies are 3-6 and are arranged at intervals.

As a preferred scheme of the utility model, a limit lug is arranged at the bottom of the chute; and a limiting groove matched with the limiting lug is arranged on the movable sliding block.

As a preferred scheme of the utility model, a cooling water channel is arranged in the beryllium copper insert; a water inlet hole and a water outlet hole are formed in the movable sliding block; the water inlet hole and the water outlet hole are communicated with the cooling water channel.

As an optimized proposal of the utility model, the thimble groove is vertical the straight groove of the thimble body direction.

Through the technical scheme, the utility model discloses technical scheme's beneficial effect is: the utility model has simple and reasonable structure, realizes the surface molding of the complex molded surface of the injection molding product through the beryllium copper insert, can reduce the processing difficulty of the injection mold on one hand, is convenient for disassembly, cleaning and maintenance, has reasonable comprehensive cost and good heat conduction effect on the other hand, and is beneficial to improving the molding quality of the complex molded surface of the injection molding product; through setting up movable thimble body, in beryllium copper mold insert and injection moulding product separation process, can support to establish on injection moulding product, avoid injection moulding product to appear pulling, improve injection moulding product's yields.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the present invention.

Fig. 3 is the schematic structural diagram of the utility model after the movable mold is removed.

Fig. 4 is a schematic structural view of the fixed mold for removing the beryllium copper insert of the present invention.

The corresponding part names indicated by the numbers and letters in the drawings:

1. fixed die 2, movable die 3 and movable slide block

4. Inclined guide post 5, guide post seat 6 and fixed seat

7. Beryllium copper insert 8, thimble body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Examples

With reference to fig. 1 to 4, the utility model discloses a slider activity thimble type injection mold for the injection molding production of the injection molding product with complicated profile. The injection mold comprises a fixed mold 1 and a movable mold 2 which are matched with each other, and an injection molding cavity is arranged between the fixed mold 1 and the movable mold 2. And the injection product is subjected to injection molding in an injection molding cavity. One side of the injection molding cavity is formed by matching a beryllium copper insert 7 with a complex molded surface of an injection molding product. A sliding groove is formed in the fixed die 1, and the movable sliding block 3 is movably clamped on the sliding groove and moves along the sliding groove. A fixed seat 6 is arranged on the movable sliding block 3; the beryllium copper insert 7 is arranged on one side of the fixed seat 6, and the beryllium copper insert 7 extends into the injection molding cavity. The beryllium copper insert 7 is made of beryllium copper. And an ejector pin body 8 is arranged in the fixed seat 6 and the beryllium copper insert 7. The thimble body 8 is many. The tail end of the thimble body 8 penetrates out of the fixed seat 6, and the front end of the thimble body 8 penetrates out of the beryllium copper insert 7. The thimble body 8 is sleeved with a spring, and specifically, a circular boss structure can be arranged on the thimble body 8. The spring pushes the thimble body 8 towards the direction of the tail end of the thimble body 8. The movable mould 2 is provided with a thimble groove matched with the thimble body 8. Preferably, the thimble groove is a straight groove perpendicular to the direction of the thimble body 8. The movable die 2 is provided with a guide post seat 5. An inclined guide post 4 is arranged on the guide post seat 5. A guide post hole matched with the inclined guide post 4 is arranged on the movable sliding block 3.

In order to ensure the stability in the injection molding process and improve the molding quality, one side of the fixed seat 6, which is far away from the beryllium copper insert 7, is an inclined plane; an inclined plane matched with the fixed seat 6 is arranged on the guide post seat 5. During injection moulding, the guide pillar seat 5 is abutted to an inclined plane and pressed on the fixed seat 6 to share the acting force of the inclined guide pillar 4, so that the fixed seat 6 is prevented from sliding.

In order to ensure that the stress of the thimble bodies 8 is more balanced and avoid bending, 3-6 thimble bodies 8 are arranged at intervals.

In order to ensure the moving stability of the movable sliding block 3 and avoid shaking, a limiting lug is arranged at the bottom of the sliding groove; and a limit groove matched with the limit lug is arranged on the movable sliding block 3.

In order to further improve the cooling forming effect of the beryllium copper insert 7, a cooling water channel is arranged in the beryllium copper insert 7; a water inlet and a water outlet are arranged on the movable sliding block 3; the water inlet and the water outlet are communicated with the cooling water channel.

The utility model discloses an action process and action principle: during injection molding, the fixed die 1 and the movable die 2 are assembled, the guide pillar seat 5 is pressed on the fixed seat 6, and the beryllium copper insert 7 extends into the injection molding cavity to realize surface molding of an injection molding product in a matching manner. After injection molding is finished, the movable mold 2 and the fixed mold 1 are opened, the inclined guide post 4 drives the movable slide block 3 to move towards the outer side of an injection mold cavity, the beryllium copper insert 7 and the movable slide block 3 move synchronously, when the mold is opened, the thimble groove on the movable mold 2 abuts against the tail part of the thimble body 8, and the thimble body 8 is kept to be still, so that when the beryllium copper insert 7 is separated from an injection product, the thimble body 8 is still to support the injection product, the injection product is prevented from being damaged when the beryllium copper insert 7 is separated from the injection product, after the beryllium copper insert 7 moves for a certain stroke, the movable mold 2 continuously moves towards the direction far away from the fixed mold 1, the tail end of the thimble body 8 is separated from the thimble groove, the tail end of the thimble body 8 is separated from limitation, and under the action of the spring, the thimble body 8 moves towards the tail end direction and is. After the die sinking process of the movable die 2 and the fixed die 1 is finished, the injection product can be released from the fixed die 1 only by adopting a top-stretching demoulding mechanism of a conventional die.

Through the above-mentioned specific embodiment, the beneficial effects of the utility model are that: the utility model has simple and reasonable structure, realizes the surface molding of the complex molded surface of the injection molding product through the beryllium copper mold insert 7, can reduce the processing difficulty of the injection mold on one hand, and is convenient for disassembly, cleaning and maintenance on the other hand, has reasonable comprehensive cost and good heat conduction effect on the other hand, and is helpful to improve the molding quality of the complex molded surface of the injection molding product; through setting up movable thimble body 8, in beryllium copper mold insert 7 and injection moulding product separation process, can support to establish on injection moulding product, avoid injection moulding product to appear pulling, improve injection moulding product's yields.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A slide block movable thimble type injection mold comprises a fixed mold and a movable mold which are matched with each other, wherein an injection mold cavity is arranged between the fixed mold and the movable mold, and the injection mold is characterized in that a chute is arranged on the fixed mold, and a movable slide block is movably clamped on the chute and moves along the chute; a fixed seat is arranged on the movable sliding block; one side of the fixed seat is connected with a beryllium copper insert, and the beryllium copper insert extends into the injection molding cavity; the beryllium copper insert is made of beryllium copper; a thimble body is arranged in the fixed seat and the beryllium copper insert; the thimble bodies are multiple; the tail end of the ejector pin body penetrates out of the fixed seat, and the front end of the ejector pin body penetrates out of the beryllium copper insert; a spring is sleeved on the thimble body; the spring pushes the thimble body towards the direction of the tail end of the thimble body; the movable die is provided with a thimble groove matched with the thimble body; a guide pillar seat is arranged on the movable die; an inclined guide post is arranged on the guide post seat; and the movable sliding block is provided with a guide post hole matched with the inclined guide post.

2. The slider moving thimble type injection mold according to claim 1, wherein a side of the fixing seat away from the beryllium copper insert is an inclined surface; and the guide post seat is provided with an abutting inclined plane matched with the fixed seat.

3. The slide block movable thimble type injection mold according to claim 1, wherein the number of the thimble bodies is 3-6, and the thimble bodies are arranged at intervals.

4. The slide block movable thimble type injection mold according to claim 2, wherein a limit bump is provided at a bottom of the slide groove; and a limiting groove matched with the limiting lug is arranged on the movable sliding block.

5. The slider moving thimble type injection mold according to claim 1, wherein a cooling water channel is provided in the beryllium copper insert; a water inlet hole and a water outlet hole are formed in the movable sliding block; the water inlet hole and the water outlet hole are communicated with the cooling water channel.

6. The slide block active thimble type injection mold of claim 1, wherein the thimble grooves are straight grooves perpendicular to the direction of the thimble body.