CN202037822U

CN202037822U - A mold release mechanism for inner grooves of injection molded products

Info

Publication number: CN202037822U
Application number: CN2011200771167U
Authority: CN
Inventors: 严雄杰; 饶观培
Original assignee: Hengbin Plastic Mould Co ltd
Current assignee: Hengbin Plastic Mould Co ltd
Priority date: 2011-03-21
Filing date: 2011-03-21
Publication date: 2011-11-16
Anticipated expiration: 2021-03-21

Abstract

The utility model provides an injection moulding product inner groovy demoulding mechanism mainly is injection moulding product's mould, including slider, oblique top, spring, shovel machine, bottom plate, stopper, needle bottom plate, thimble board, the slider locate four oblique diagonal positions of die cavity in the product, be 45 degrees angle slopes with the product inner cavity surface, the inclined plane of slider front end is hugged closely to the shovel machine of slider front end, the inside of this slider is equipped with the spring, for the stopper on the back mould the screw-fastening on the thimble board. The utility model provides a mechanism is rational in infrastructure, reliable, and it is when the die sinking, at first twitches four oblique angle sliders to the product center under the effect of spring for the slider can both correctly target in place when moving in opposite directions or opposite, avoids damaging the slider. The slide block is pulled out and then the whole product is ejected out by the inclined top to realize the demoulding action.

Description

A kind of injecting products inner groovy mould emptier

Technical field

The utility model relates to Mould Machining, particularly a kind of injecting products inner groovy mould emptier.

Background technology

Early stage mould structure is simple, mostly the groove position of plasthetics is by hand ejection, its production efficiency is low, cost is higher, but along with society is increasing to the demand of plastic cement products, the inner groovy of existing product or the mould of back-off structure, when product is used for the slide block shaping, because most of finished product is wrapped in slide block, like this when die sinking, finished product is easily pulled or is broken, and causes the normally demoulding, so product generally all needs to carry out secondary operations, cause the process-cycle of product long, can not one-shot forming.

The utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art a kind of injecting products inner groovy mould emptier is provided, and reaches the purpose of product one-shot forming, process-cycle weak point, saving cost, raising yield rate.

Technical solutions of the utility model are as follows: a kind of injecting products inner groovy mould emptier; comprise slide block 1, oblique top 2, spring 3, shovel machine 4, base plate 5, limited block 6, pin base plate 7, ejector retainner plate 8; it is characterized in that described slide block 1 is located at four diagonally opposing corner positions of die cavity in the product; be miter angle with mold cavity surface in the product; the shovel machine 4 of slide block 1 front end is close to the inclined-plane of slip front; the inside of this slide block 1 is provided with spring 3, and the limited block 6 usefulness screws on the back mould are fastened on the ejector retainner plate 8.

Described slide block 1 is after die sinking, and after slide block 1 broke away from shovel machine 4, under the effect of spring 3, to loosing core, the demouldings were realized at four angles of product in the miter angle obliquity rectilinear motion; The injection machine push rod ejects pin base plate 7 to limited block 6 spacing places, and oblique top 2 ejects product integral body, the demoulding smoothly.

During matched moulds, oblique top 2 at first resets, and slide block 1 rear makes slide block 1 advance core under the effect of guiding surface then, and slide block 1 compresses and makes spring be in compressive state.

After adopting such scheme, the utility model has following advantage: this is rational in infrastructure, and is practical, it at first twitches four oblique angle slide blocks to product center in die sinking, stopper slot is arranged on the slide block, make slide block in opposite directions or can both be correct during reverse motions put in place, avoid damaging slide block.Eject back mould skewback by oblique top again after slide block is twitched and realize demoulding action.

Description of drawings

Fig. 1 is the stereogram of the utility model structure;

Fig. 2 is the structural front view of the utility model structure;

Fig. 3 is the structural representation of the utility model structure.

The specific embodiment

In order better to understand the utility model content, the utility model is further specified below in conjunction with accompanying drawing.

Consult accompanying drawing 1,2; a kind of injecting products inner groovy of the utility model mould emptier; comprise slide block 1, oblique top 2, spring 3, shovel machine 4, needle plate, base plate 5, limited block 6, pin base plate 7, ejector retainner plate 8; it is characterized in that described slide block 1 is located at four diagonally opposing corner positions of die cavity in the product; be miter angle with mold cavity surface in the product; the shovel machine 4 of slide block 1 front end is close to the inclined-plane of slip front, and the inside of this slide block 1 is provided with spring 3, and the limited block 6 usefulness screws on the back mould are fastened on the ejector retainner plate 8.

Consult accompanying drawing 3, when slide block 1 after die sinking, after slide block 1 broke away from shovel machine 4, under the effect of spring 3, to loosing core, the demouldings were realized at four angles of product in the miter angle obliquity rectilinear motion; The injection machine push rod ejects spacing place to limited block 6 with pin base plate 7, and oblique top 2 ejects product integral body, the successful demoulding.

This is rational in infrastructure, practical for the utility model, and it at first twitches four oblique angle slide blocks to product center under the effect of spring in die sinking, make slide block in opposite directions or can both be correct during reverse motions put in place, avoid damaging slide block.Eject entire product by oblique top again after slide block is twitched and realize demoulding action.

Embodiment only is a preferred optimum implementation of the present utility model in sum; unintelligible is that protection domain of the present utility model is limited; for adjustment that does not exceed technical solutions of the utility model and the change that the technical work personnel of this area do according to the utility model, should think and drop in the protection domain of the present utility model.

Claims

1. A demoulding mechanism for an inner groove of an injection molded product, comprising a slider, an inclined top, a spring, a shovel, a base plate, a limit block, a needle base plate, and a thimble plate, and it is characterized in that the slide block is located in the inner shape of the product. The four diagonal positions of the cavity are inclined at an angle of 45 degrees to the surface of the inner cavity of the product. The shovel at the front end of the slider is close to the slope at the front end of the slider. There is a spring inside the slider, and the limit on the rear mold The block is fastened to the thimble plate with screws.

2. A demoulding mechanism for an inner groove of an injection molded product according to claim 1, characterized in that after the mold is opened and the slider is separated from the shovel, under the action of a spring, it moves along a 45-degree The core is pulled inward in a straight line at an inclined position, and the four corners of the product are demoulded; the ejector rod of the injection molding machine pushes the needle base plate out to the limit position of the limit block, and the inclined ejector ejects the product as a whole, successfully demoulding;

When the mold is closed, the inclined top is first reset, and then the slider is pushed into the core under the action of the guide inclined surface at the rear part of the slider, and the slider is pressed tightly so that the spring is in a compressed state.