CN203844137U

CN203844137U - Plastic mould suitable for combining magnesium part and plastic part

Info

Publication number: CN203844137U
Application number: CN201420218009.5U
Authority: CN
Inventors: 洪进兴; 牛石建; 王胜柱; 王彦鹏
Original assignee: KUNSHAN CHANGYUN ELECTRONIC INDUSTRY Co Ltd
Current assignee: KUNSHAN CHANGYUN ELECTRONIC INDUSTRY Co Ltd
Priority date: 2014-04-30
Filing date: 2014-04-30
Publication date: 2014-09-24
Anticipated expiration: 2024-04-30

Abstract

The utility model discloses a plastic mould suitable for combining a magnesium part and a plastic part. The plastic mould is characterized by comprising an upper mould and a lower mould, wherein a lower mould cavity for containing a to-be-combined magnesium part and a lower moulding cavity for moulding the plastic part are formed on the lower mould; an upper mould cavity and an upper moulding cavity matched with the lower mould cavity and the lower moulding cavity are formed on the upper mould; a sprue for feeding a plastic material is formed on the upper mould and the sprue is communicated with the upper moulding cavity through a runner; after the upper and lower moulds are combined, an edge lock is further arranged at the edge of the mould, close to the upper moulding cavity and the lower moulding cavity. The plastic mould has the beneficial effects that the position in which the magnesium part and the plastic part are combined is effectively sealed, and the magnesium part and the plastic part are firmly and reliably combined, can not fall, and are intact and free from excessive glue so as to avoid the glue leakage by means of reasonably arranging the runner and an exhaust duct, and the degree of deformation of a product is less than or equal top 0.5mm.

Description

Be applicable to the plastic mould that magnesium part is combined with plastic parts

Technical field

The utility model relates to a kind of mould, be specifically related to a kind of can be by the plastic mould of magnesium part and plastic parts strong bonded.

Background technology

An electronic product taking notebook as representative, its appearance design is more and more novel and various.We find, some local electronic product casings that adopt plastic parts to replace metalwork (as magnesium part) on market, are there are, as display screen metal shell, the keyboard case etc. of local " inlaying " or " being coated " plastic parts, this just need to make magnesium part and plastic parts combine reliably, carry out effective sealing in junction, avoid occurring leaking glue phenomenon, guarantee in use procedure that magnesium part and plastic parts can not be moved.

Utility model content

For solving the deficiencies in the prior art, the purpose of this utility model is to provide a kind of plastic mould that magnesium part is combined with plastic parts of being applicable to, and goes out outward appearance novel and beautiful, intensity is good, quality is light product with processing and manufacturing.

In order to realize above-mentioned target, the utility model adopts following technical scheme:

Be applicable to the plastic mould that magnesium part is combined with plastic parts, it is characterized in that, comprise: upper die and lower die, on described counterdie, be formed with lower mode cavity for placing the magnesium part for the treatment of combination, compacted under chamber for forming plastic cement part, described patrix is formed with the upper cavity and the upper forming cavity that coordinate with lower mode cavity, compacted under chamber, described patrix is formed with the cast gate for plastic rubber material charging, between described cast gate and upper forming cavity, is communicated with by runner; After described patrix and counterdie matched moulds, near on the die edge in forming cavity and compacted under chamber be also provided with limit lock.

Preferably, aforementioned upper forming cavity and compacted under chamber are 3 pairs.

Aforementioned cast gate is formed at the centre position of patrix, between the bottom of cast gate and 3 upper forming cavities, is communicated with by three linear runners, and preferably three linear runners is equal in length.

Further, be also formed with air discharge duct on aforementioned patrix, described air discharge duct is close to forming cavity setting on one of them.

Between the bottom of aforementioned cast gate and air discharge duct, be formed with exhaust passage.

Usefulness of the present utility model is: plastic mould of the present utility model, by runner and exhaust passage are rationally set, the effective sealing in position that magnesium part is combined with plastic parts, can not come off in conjunction with solid and reliable, the intact nothing glue that overflows, guarantee there will not be and leak glue phenomenon, and deformation of products degree≤0.5mm.

Brief description of the drawings

Fig. 1 is the perspective view that is applicable to make the plastic mould that magnesium part is combined with plastic parts of the present utility model;

Fig. 2 is the planar structure schematic diagram of the counterdie that is applicable to make the plastic mould that magnesium part is combined with plastic parts of the present utility model;

Fig. 3 is the planar structure schematic diagram of the patrix that is applicable to make the plastic mould that magnesium part is combined with plastic parts of the present utility model.

The implication of Reference numeral in figure: 1, patrix, 2, counterdie, 3, lower mode cavity, 4, compacted under chamber, 6, upper forming cavity, 7, cast gate, 8, runner, 9, Bian Suo, 10, air discharge duct, 11, exhaust passage, 12a, 12b, 12c, plastic parts.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the utility model is done to concrete introduction.

Referring to Fig. 1 to Fig. 3, plastic mould of the present utility model, be applicable to make magnesium part and plastic parts to combine, form a kind of novel unique product, particularly, this mould comprises: patrix 1 and counterdie 2, wherein, on counterdie 2, be formed with lower mode cavity 3 for placing the magnesium part for the treatment of combination, for the compacted under chamber 4 of forming plastic cement part, patrix 1 is formed with the upper cavity and the upper forming cavity 6 that coordinate with lower mode cavity 3, compacted under chamber 4.In addition, the plastic rubber material of melting is from patrix 1 pan feeding, so, on patrix 1, be formed with the cast gate 7 for plastic rubber material charging, between cast gate 7 and upper forming cavity 6, be communicated with by runner 8.When after patrix 1 and counterdie 2 matched moulds, i.e. state as shown in Figure 1, near on the die edge in forming cavity 6 and compacted under chamber 4 be also provided with limit lock 9, can effectively prevent the glue that overflows, guarantee the quality of shaped article.

As a kind of specific embodiment, as shown in Figure 3, upper forming cavity 6 and compacted under chamber 4 are 3 to (not illustrating one by one in figure), be positioned on three different edges of magnesium part, correspondingly, also just formed the product with the three plastic parts 12a of place, 12b, 12c, meanwhile, also just there are three limit locks 9.Preferably, cast gate 7 is formed at the centre position of patrix 1, between the bottom of cast gate 7 and 3 upper forming cavities 6, be communicated with by three linear runners 8, and the length of three linear pattern runners 8 preferably equate, the shaping speed that so just can ensure three place's forming cavities is basically identical, improves whole efficiency.

Further, be also formed with air discharge duct 10 on patrix 1, air discharge duct 10 is close to forming cavity 6 on one of them and arranges, and between the bottom of cast gate 7 and air discharge duct 10, is formed with exhaust passage 11.So, gas is discharged in time, and magnesium part and plastic parts can be realized perfect adaptation and effectively sealing, can not come off, and the bulk deformation degree of product are very little, is controlled at below 0.5mm in conjunction with solid and reliable.

When practical application, in order further to improve the combination degree of magnesium part and plastic parts, on magnesium part, generally form snap fit or step, optimize the combination of magnesium part and plastic parts, motion upper and lower, all around that restriction magnesium part and plastic parts occur, and then make the combination of magnesium part and plastic parts more solid and reliable.

More than show and described general principle of the present utility model, principal character and advantage.The technical staff of the industry should understand, and above-described embodiment does not limit the utility model in any form, and all employings are equal to replaces or technical scheme that the mode of equivalent transformation obtains, all drops in protection domain of the present utility model.

Claims

1. be applicable to the plastic mould that magnesium part is combined with plastic parts, it is characterized in that, comprise: upper die and lower die, on described counterdie, be formed with lower mode cavity for placing the magnesium part for the treatment of combination, compacted under chamber for forming plastic cement part, described patrix is formed with the upper cavity and the upper forming cavity that coordinate with lower mode cavity, compacted under chamber, described patrix is formed with the cast gate for plastic rubber material charging, between described cast gate and upper forming cavity, is communicated with by runner; After described patrix and counterdie matched moulds, near on the die edge in forming cavity and compacted under chamber be also provided with limit lock; On described patrix, be also formed with air discharge duct, described air discharge duct is close to forming cavity setting on one of them, between the bottom of described cast gate and air discharge duct, is formed with exhaust passage.

2. the plastic mould that magnesium part is combined with plastic parts of being applicable to according to claim 1, is characterized in that, described upper forming cavity and compacted under chamber are 3 pairs.

3. the plastic mould that magnesium part is combined with plastic parts of being applicable to according to claim 2, is characterized in that, described cast gate is formed at the centre position of patrix, between the bottom of cast gate and 3 upper forming cavities, is communicated with by three linear runners.

4. the plastic mould that magnesium part is combined with plastic parts of being applicable to according to claim 3, is characterized in that, described three linear runners equal in length.