CN202911086U

CN202911086U - Demoulding and separating structure of fixed mould

Info

Publication number: CN202911086U
Application number: CN 201220516244
Authority: CN
Inventors: 李建欣; 欧阳贞和; 唐杰; 顾书瑞; 罗鸣; 杨健; 黄振宇; 丁俊
Original assignee: TIANJIN KEWEN MOULDING PLASTIC INJECTION CO Ltd
Current assignee: TIANJIN KEWEN MOULDING PLASTIC INJECTION CO Ltd
Priority date: 2012-10-09
Filing date: 2012-10-09
Publication date: 2013-05-01
Anticipated expiration: 2022-10-09

Abstract

The utility model relates to a demoulding and separating structure of a fixed mould, which comprises a fixed mould backing board, fixed moulds and a movable mould, wherein the fixed mould backing board is arranged on the side corresponding to the mould closing surface of the fixed moulds; the movable mould is arranged on the relative position of the mould closing surface of the fixed moulds; inner concave cavities are respectively formed in the middle of the fixed moulds and the movable mould; an injection moulding cavity formed by the close of the movable mould and the fixed moulds is used for product casting; insert through grooves with symmetric pop-up inserts mounted therein are symmetrically formed in the fixed moulds on the two sides of the injection moulding cavity; a prop-up spring is pressed between each prop-up insert and the top plate of the fixed mould; and a clamping position lug boss matched with the product structure is arranged on the surfaces of the prop-up inserts in contact with the protruded structure positions on the two sides of the product. According to the utility model, the prop-up inserts are symmetrically mounted on the two sides of the injection moulding cavity; and during mould opening, the two sides of the product are stressed uniformly to prop up the product and separate the fixed mould cavity and the mould. Therefore, the structure provided by the utility model is clear, easy to mount, wide in application range and has excellent popularization value.

Description

The release structure of a kind of cover half demoulding

Technical field

The utility model belongs to mould applications, the release structure of especially a kind of cover half demoulding.

Background technology

Existing injection mold is to be made of dynamic model and cover half, moving, behind the cover half matched moulds, between dynamic model and cover half, form the injection moulding die cavity, pour into a mould typing to be cooled to the injection moulding die cavity and obtain afterwards the product consistent with the interior contour shape of injection moulding die cavity, but, the planform of the product of sheath one class itself is comparatively complicated, when dynamic model separates with cover half, because product cover half partial frictional power greater than the dynamic model part, causes product to be difficult for release, namely be difficult for breaking away from die cavity, even cause product, the adhesion of cover half and mould, be not easy to operation, not only easily produce defective, and easily cause mould to damage.

Summary of the invention

The purpose of this utility model is to overcome the prior art deficiency, provides a kind of cover half demoulding release structure, and this structure can make product and mould break away from smoothly.

The technical solution adopted in the utility model is:

The release structure of a kind of cover half demoulding, comprise cover half backing plate, cover half and dynamic model, a corresponding side is equipped with the cover half backing plate on the matched moulds surface of cover half, relative position arranges dynamic model on the matched moulds surface of cover half, all be shaped with the indent die cavity at the fixed half and moving half middle part, be formed for pouring into a mould the injection moulding die cavity of product behind dynamic model and the cover half matched moulds, in the cover half of injection moulding die cavity both sides symmetry be shaped with the mold insert groove and within it section all be symmetrically installed with one and eject mold insert, all be pressed with an ejector spring between this ejection mold insert and the cover half top board; Be shaped with a clamping boss that cooperates with product structure with the contacted ejection mold insert of the outstanding locations of structures surface of product both sides.

And, all be set with a block that is shaped with the spring through hole outside the ejector spring between described ejection mold insert and cover half top board.

And mold insert groove made in described cover half is shaped with stopper slot near cover half top board one side, position that should stopper slot is shaped with spacing hanging platform flicking mold insert.

Advantage and good effect that the utility model adopts are:

1, the utility model has added the ejection mold insert that ejector spring is installed in cover half, in the die sinking process, can automatically product be ejected the die cavity of cover half, make the smooth break away from moulds of product, the product that mould is produced is convenient, fast, reduce the generation of defective products, effectively reduce cost, production efficiency is greatly improved.

2, the utility model is equipped with the ejection mold insert in injection moulding die cavity bilateral symmetry, and product both sides uniform stressed is ejected cover half die cavity and mould separating in the die sinking process, and its clear in structure, and assembling is easy, and the scope of application is extensive, has good promotional value.

Description of drawings:

Fig. 1 is the fixed mould structure schematic diagram (cross-sectional view) of the utility model matched moulds state;

Fig. 2 is that the A-A of Fig. 1 is to cross section sectional structure schematic diagram;

Fig. 3 is the utility model die opening state structural representation (cross-sectional view).

The specific embodiment:

The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.

The release structure of a kind of cover half demoulding, the mould that this structure is installed comprises cover half backing plate 2, cover half 1 and dynamic model 8, for clearer explanation innovative point of the present utility model, the driver part of dynamic model and pedestal and the support of mould outside have been omitted in the accompanying drawing, a corresponding side is equipped with the cover half backing plate on the matched moulds surface of cover half, relative position arranges dynamic model on the matched moulds surface of cover half, all be shaped with the indent die cavity at the fixed half and moving half middle part, be formed for pouring into a mould the injection moulding die cavity of product 7 behind dynamic model and the cover half matched moulds.

Innovative point of the present utility model is:

As shown in Figure 1, in the cover half of injection moulding die cavity both sides symmetry be shaped with the mold insert groove and within it section all be symmetrically installed with one and eject mold insert 5, all be pressed with an ejector spring 4 between this ejection mold insert and the cover half top board, for the ease of limit ejecting the installation site of mold insert, outside the ejector spring that ejects between mold insert and the cover half top board, all be set with a block 3 that is shaped with the spring through hole;

Be shaped with a clamping boss that cooperates with product structure 6 with the contacted ejection mold insert of the outstanding locations of structures surface of product both sides, ejector spring drives and flicks mold insert to matched moulds surface one lateral movement of cover half in the die sinking process, by this clamping boss product is ejected.

In order to limit the ejection distance that ejects mold insert and to prevent that it is because of the excessive cover half that breaks away from of ejection power, as shown in Figure 2, made mold insert groove is shaped with stopper slot 10 near a side of cover half top board in cover half, be shaped with spacing hanging platform 9 at the mold insert that flicks to position that should stopper slot, mould moves until stopper slot stops the hanging platform movement position to stop because ejector spring drives in die sinking simultaneously.

Claims

1. release structure of the cover half demoulding, comprise cover half backing plate, cover half and dynamic model, a corresponding side is equipped with the cover half backing plate on the matched moulds surface of cover half, relative position arranges dynamic model on the matched moulds surface of cover half, all be shaped with the indent die cavity at the fixed half and moving half middle part, be formed for pouring into a mould the injection moulding die cavity of product behind dynamic model and the cover half matched moulds, it is characterized in that: in the cover half of injection moulding die cavity both sides symmetry be shaped with the mold insert groove and within it section all be symmetrically installed with one and eject mold insert, all be pressed with an ejector spring between this ejection mold insert and the cover half top board; Be shaped with a clamping boss that cooperates with product structure with the contacted ejection mold insert of the outstanding locations of structures surface of product both sides.

2. the release structure of the cover half demoulding according to claim 1 is characterized in that: all be set with a block that is shaped with the spring through hole outside the ejector spring between described ejection mold insert and cover half top board.

3. the release structure of the cover half demoulding according to claim 1, it is characterized in that: mold insert groove made in described cover half is shaped with stopper slot near cover half top board one side, position that should stopper slot is shaped with spacing hanging platform flicking mold insert.