CN215151515U

CN215151515U - Interior back-off goes out mode structure

Info

Publication number: CN215151515U
Application number: CN202121149787.XU
Authority: CN
Inventors: 吴鑫
Original assignee: Dongguan Wocax Precision Mould Co ltd
Current assignee: Dongguan Wocax Precision Mould Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2021-12-14
Anticipated expiration: 2031-05-26

Abstract

The utility model provides an interior back-off goes out mode structure, including the ejector pin, the ejector pin top is equipped with the ejector pad, still is equipped with back mould movable mold insert on the ejector pin, still includes the fixed mold insert of a back mould, and the fixed mold insert of back mould cooperates with back mould movable mold insert, and on the fixed mold insert of back mould, is equipped with the dovetail on the movable mold insert contact position with back mould, the utility model discloses a dovetail of the fixed mold insert of back mould movable mold insert cooperation back mould makes back mould movable mold insert to the mid-range motion when ejecting, realizes the drawing of patterns, and the cooperation ejector pad carries out ejecting action in the product bottom simultaneously, avoids the interference of back mould movable mold insert and bone position, guarantees that the product is complete ejecting.

Description

Interior back-off goes out mode structure

Technical Field

The utility model relates to a plastic mould technical field, concretely relates to interior back-off demolding structure.

Background

For the handle with deep cavity such as the traditional electric toothbrush, the current demoulding way and structure have the following difficulties: 1. due to the assembly requirement, the product needs to be additionally provided with an internal buckling position and a lateral core-pulling mechanism, and meanwhile, the bottom of the product is provided with a circle of bone positions, so that the oblique ejection mode of a graph is insufficient in space, and other schemes need to be considered for demolding; 2. the product is very high and how to eject the product is another big difficulty. The difficulty leads to the difficulty in completely demoulding similar products in the demoulding process and easy damage to the products.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide an interior back-off demolding structure.

The technical scheme of the utility model as follows:

an inside-undercut ejector die structure, comprising:

the ejector rod, the ejector rod top is equipped with the ejector pad, still be equipped with back mould movable insert on the ejector rod, still include a back mould fixed insert, back mould fixed insert with back mould movable insert cooperation, and on the fixed insert of back mould, with be equipped with the dovetail on the back mould movable insert contact position.

The utility model discloses in, be equipped with a push pedal on the fixed mold insert of back mould, just the ejector pin wear to establish install in on the push pedal.

The utility model discloses in, ejector pin fixed mounting is on an ejector plate, just the ejector plate is driven by a drive arrangement.

The utility model discloses in, the ejector pad through pin fixed mounting in the ejector pin top.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a dovetail of the fixed mold insert of back mould movable mold insert cooperation back mould makes back mould movable mold insert to the intermediate motion when ejecting, realizes the drawing of patterns, and the cooperation ejector pad carries out ejecting action in the product bottom simultaneously, avoids the interference of back mould movable mold insert and bone position, guarantees that the product is complete ejecting.

Drawings

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

Fig. 1 is an overall structure diagram of an internal undercut ejector die structure provided by the present invention;

FIG. 2 is a partial block diagram of the internal undercut ejector die structure;

fig. 3 is a structural view of the product.

The reference numerals are explained below:

1. a top rod; 2. a push block; 21. a pin; 3. a rear mold movable insert; 4. fixing the insert by the rear mold; 41. a dovetail groove; 5. pushing the plate; 6. an ejector plate; 7. and (5) producing the product.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In order to explain the technical solution of the present invention, the following description is made by using specific examples.

Examples

Referring to fig. 1 to 3, the present invention provides an internal undercut ejector structure, including:

ejector pin 1, ejector pin 1 top are equipped with ejector pad 2, still are equipped with back mould movable insert 3 on the ejector pin, still include a back mould fixed insert 4, and back mould fixed insert 4 cooperates with back mould movable insert 3, and on back mould fixed insert 4, is equipped with dovetail 41 with back mould movable insert 3 contact position.

In this embodiment, the rear mold is provided with a push plate 5 on the rear mold fixing insert 4, and the ejector rod 1 is installed on the push plate 5 in a penetrating manner.

In this embodiment, the ejector pin 1 is fixedly mounted on an ejector plate 6, and the ejector plate 6 is driven by a driving device.

In the embodiment, the push block 2 is fixedly arranged on the top of the mandril 1 through a pin 21.

The working principle is as follows:

after injection molding is finished, the ejector pin plate 6 pushes the ejector pin 1 and the push plate 5 to eject out simultaneously, the movable insert 3 of the rear mold moves towards the middle while ejecting under the action of the dovetail groove 41 of the fixed insert 4 of the rear mold, so that internal back-off demolding is finished, and meanwhile, the product 7 finishes ejection action under the action of the ejector pin 1 and the push block 2.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. The utility model provides an interior back-off goes out mode structure, its characterized in that includes a ejector pin, the ejector pin top is equipped with the ejector pad, still be equipped with back mould movable mold insert on the ejector pin, still include the fixed mold insert of a back mould, the fixed mold insert of back mould with the cooperation of back mould movable mold insert, and be in on the fixed mold insert of back mould, with be equipped with the dovetail on the movable mold insert contact position of back mould.

2. The inside-out die structure according to claim 1, wherein the rear die fixing insert is provided with a push plate, and the ejector rod is installed on the push plate in a penetrating manner.

3. The internal undercut ejector die structure according to claim 1, wherein the ejector pin is fixedly mounted on an ejector plate, and the ejector plate is driven by a driving device.

4. The internal undercut ejector die structure according to claim 1, wherein the ejector block is fixedly mounted on the top of the ejector rod by a pin.