CN2231174Y

CN2231174Y - Laminate injecting mould

Info

Publication number: CN2231174Y
Application number: CN 95202083
Authority: CN
Inventors: 王振保; 王振安; 潘应亮
Original assignee: 王振保
Priority date: 1995-01-24
Filing date: 1995-01-24
Publication date: 1996-07-17
Anticipated expiration: 2005-01-24

Abstract

The utility model relates to a laminate injecting mold, which is molded by plastic. The utility model has a plurality of parting surfaces and a plurality of layers of pattern cavities. The utility model is suitable for molding mold pieces with a shallow cavity and a thin wall. The utility model can exert the production capacity of an injection molding machine, and can improve the work efficiency of an injection molding machine by one time to a plurality of times. The utility model has the advantages of water saving, electricity saving, and mechanical loss saving.

Description

Stacked injection mold

The utility model relates to a kind of injection-moulding plastic device therefor---mould.

The present injection mold that uses, only on a die joint, be provided with one deck die cavity, each injection moulding can only be made one deck plastic on an aspect, and these goods great majority are shallow cavity thin-wall spares, and manufacture process requires big to clamp force, and required shot, opening stroke and mould are thick very little, so that the injection machine of adapted can not be given full play to production capacity, many consume water, electricity, production efficiency is low, the cost height.

The purpose of this utility model is to disclose a kind of each injection moulding can be made the multilayer plastic on a plurality of aspects stacked injection mold, so that enhance productivity, reduces cost.

Adopt following proposal for this reason:

A kind of stacked injection mold has die joint and die cavity, runner, it is characterized in that being provided with a plurality of profiles and multilayer die cavity in one pair of mould, correspondingly is provided with multistage sprue and runner; The template that has each stratotype chamber is stacked up and down successively, and draws contraposition with the contraposition rod guidance; Runner communicates in the template in each stratotype chamber; Between each layer template, be provided with somatotype control member and demoulding member: pull bar, touching lever, push rod, top board or rein in plate corresponding to each die joint.

Because the utility model is than most times of die cavities of prior art, use the utility model during the shallow cavity thin-wall spare of injection moulding, each injection moulding can be made the plastic of several times more, not only given full play to the production capacity of machinery equipment, at double or several times improve work efficiency, and the water of every goods, power consumption, wage and equipment depreciation are reduced to some/one, thereby have greatly reduced cost.

Hereinafter will and contrast accompanying drawing by embodiment further describes.

The drawing explanation:

Fig. 1 is the general assembly drawing of embodiment 1;

Fig. 2 is the general assembly drawing of embodiment 2;

Fig. 3 is the general assembly drawing of embodiment 3.

Embodiment 1 is one pair of single chamber double-layer injection mold, and referring to Fig. 1, it has two die joint A-A and B-B, a die cavity 1 and 2 are arranged on each die joint, two sections sprues 4,5 are arranged in the mould, die ontology is divided into several main modular: core 10,13, concave template 11, top board 12.Injection machine is filled with die cavity 1 and 2 with the plastics of high-temperature fusion attitude by

runner

4 and 5 during work, behind the cooling and shaping, injection moulding machine mould open, A under the promotion of spring 16-A kept man of a noblewoman elder generation somatotype, with material in the plastic and 5 in 1 separating, the ground floor plastic is stayed on the core 10, when A-A somatotype during to design height limit pull rod 17 hold concave templates 11, B-B face begins somatotype, somatotype during to designed distance push rod 18 push top board 12, second layer plastic is taken off, and the ground floor plastic is opened air valve 19 by the Compressed Gas that feeds, with its pressure-off.Present embodiment is suitable for the injection moulding of the shallow chamber of large tracts of land product.

Embodiment 2 is one pair of double-deck Multi-Cavity Injection Molds tool, as shown in Figure 2, it has three die joint A-A, B-B, C-C, two stratotype chambeies, every stratotype chamber is made up of a plurality of chambeies, and the number in chamber determines that by the cavity area size runner is divided into sprue 4, runner 7, and die ontology mainly contains core 10,13,

concave template

11,14 is reined in plate 15.Be communicated with pin gate between runner and the die cavity.

During work the melt plastics by injection machine through

runner

4,7 fill with two-layer each die cavity, die sinking behind the cooling and shaping, A-A kept man of a noblewoman elder generation somatotype, the ground floor plastic separates with runner at a cast gate place, when A-A face somatotype during to designed distance, rein in plate 15 limited bolts 21 and hold, the ground floor plastic is taken off, touching lever 22 bumps pull hook 23 afterbodys simultaneously, make it to take off and collude, pull bar 23 is held concave template 11, makes B-B somatotype, and somatotype is to suitable distance, push rod 20 withstands die 14, C-C face somatotype, runner 7 separates at the pin gate place with second layer plastic, and push rod 18 is by taking over a business 12 with the demoulding of second layer plastic, sprue puller 25 works to pull out material the mediation runner, present embodiment has adopted the pin gate system that material is separated (runner coagulates material) automatically with plastic, need not repair, and it is suitable for the shallow cavity thin-wall plastics of injection moulding small size.

Embodiment 3 is one pair of three layers of singe cavity mold.As shown in Figure 3, it has three die joint A-A, B-B, C-C, three sections sprues 4,5,6 and runner 7, a die cavity 1,2,3 is arranged on the per minute profile, die ontology is three concave templates 8 of branch, 10,14 and dull and stereotyped 9, during cast and preceding two examples be as good as, during die sinking under spring 16 effect A-A face elder generation somatotype, first layered material by second layered material pulling out, then caging bolt 24, hold template 8, make B-B somatotype, two layered materials handle is pulled out by three layered materials handle, then garden pin 30 makes C-C somatotype with arm-tie 31 effects, push rod 18 ejects the 3rd layered material handle, but the plastic materials can certainly design compressibility with the plastic demoulding taking off.Present embodiment is applicable to the annular flake plastic that area is bigger.

Utilize same principle can manufacture three layers of multi-cavity mold and more multi-layered mould, yet be difficult to guarantee the quality of moulding when surpassing three layers.

Claims

1, a kind of stacked injection mold has die joint and die cavity, runner, it is characterized in that, has the multilayer die cavity in one pair of mould, and correspondingly is provided with multistage sprue and runner; The template that has each stratotype chamber is under the guiding of contraposition bar, and is stacked up and down successively; Runner communicates in the template in each stratotype chamber; Between the template, be provided with somatotype control member and demoulding member: pull bar, touching lever, push rod, top board or rein in plate corresponding to each die joint.

2, mould according to claim 1 is characterized in that, has two-layer die cavity, and every layer is a die cavity.

3, mould according to claim 1 is characterized in that: have two-layer die cavity, every layer is a plurality of die cavities, and runner is communicated with the place and narrows cast gate for pin with die cavity.

4, mould according to claim 1 is characterized in that, has three die joints, three stratotype chambeies, every layer of single chamber.