CN202826233U

CN202826233U - Rubber coating structure

Info

Publication number: CN202826233U
Application number: CN 201220270326
Authority: CN
Inventors: 郑立平
Original assignee: Airmate Electrical Shenzhen Co Ltd
Current assignee: Airmate Electrical Shenzhen Co Ltd
Priority date: 2012-06-08
Filing date: 2012-06-08
Publication date: 2013-03-27
Anticipated expiration: 2022-06-08

Abstract

The utility model relates to a rubber coating structure which comprises a plastic component body, an insert component and a clamping position. The plastic component body is provided with a cavity which accommodates the insert component and the clamping position, the insert component is arranged inside the cavity, and one side of the insert component abuts against the inner bottom of the cavity; the clamping position is inserted into the cavity and abuts against the other side of the insert component. The rubber coating structure has the advantages of big strong rubber coating strength and low possibility of rubber blockage and mould damage.

Description

A kind of rubber-wrapping structure

Technical field

The utility model relates to a kind of rubber-wrapping structure, more particularly, relates to a kind of mold insert, screens and the three-in-one rubber-wrapping structure of plastic parts body.

Background technology

Rubber-wrapping structure in the market mainly is by mold insert being placed in the mould through injection moulding shape all-in-one-piece rubber-wrapping structure.Although this rubber-wrapping structure technique is simple, but since in the encapsulation process because the existence of mold insert so that the injection moulding liquid flowing velocity near the mold insert surface is fast in the injection moulding process, thereby density is low after causing moulding, and make easily herein to have bubble in the injection moulding liquid, cause the encapsulate insufficient strength; Because mold insert may be metalwork, harder simultaneously, so that at the easy mold damage of injection moulding; Moreover, because the existence of mold insert also may cause the phenomenon of blocking up glue.

The utility model content

The technical problems to be solved in the utility model is that for encapsulate insufficient strength in the prior art, the defects of stifled glue and mold damage provides a kind of rubber-wrapping structure that overcomes the above problems.

The utility model provides a kind of rubber-wrapping structure, comprise the plastic parts body, mold insert, screens, described plastic parts body has the die cavity that holds described mold insert and described screens, and described mold insert is encased in the described die cavity, the inner bottom part of the described die cavity of described mold insert one side butt, described screens is inserted in the described die cavity, the opposite side of the described mold insert of insertion end butt.

Described die cavity top also is provided with button bit, also is provided with in the described screens to be no less than one buckle, and one of described buckle buckles into described button bit.

Described plastic parts body is injection molded in advance, and the shape that the shape of described die cavity and described mold insert and screens are combined into one adapts.

Shape and described mold insert with an end described mold insert butt described screens adapted by the shape of butt side.

The utility model is owing to changed the frame mode of rubber-wrapping structure, namely be not to make plastic parts body and mold insert consist of an integral body mode of mold insert by injection moulding, but mold insert is packed in the die cavity of the plastic parts body of injection formed, by screens mold insert is fixed therein again.Such structure is owing to be to form but not be directly to form in injection moulding by mold insert being assembled on the body, thereby can avoid the encapsulate insufficient strength, the phenomenon of stifled glue and mold damage, simultaneously since have screens existence so that mold insert can more firmly be fixed among the die cavity.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:

Fig. 1 is the front view of the known rubber-wrapping structure of expression;

Fig. 2 is along the cutaway view of A-A line in the presentation graphs 1;

Fig. 3 is the exploded view of the utility model rubber-wrapping structure;

Fig. 4 is the front view of the utility model rubber-wrapping structure;

Fig. 5 is along the cutaway view of A-A line among the utility model Fig. 4.

The specific embodiment

In order to make the purpose of this utility model clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.

Such as Fig. 1, shown in Figure 2, represented a kind of known rubber-wrapping structure, comprise mold insert 001 and plastic parts body 002, its generation type is to form plastic parts body 002 by mold insert 001 being put into the mode of mould by injection moulding, this moment, mold insert 001 was sealed in the plastic parts body 002, and plastic parts body 002 becomes one.

Fig. 3 is the exploded view of the utility model rubber-wrapping structure, represented a kind of rubber-wrapping structure, comprised plastic parts body 01, mold insert 02, screens 03, plastic parts body 01 has the die cavity 04 that holds mold insert 02 and screens 03, during assembling, first mold insert 02 is encased in the die cavity 04, the inner bottom part of the described die cavity 04 of mold insert 02 1 side butts, afterwards, screens 03 is inserted in the die cavity 04, an other side of screens 03 insertion end butt mold insert 02.

For making mold insert 02 be tightly fixed on plastic parts body 01 inside, must make the very tight mold insert 02 that is connected to of screens 03, make whole assembly be subject to the effect of equilibrant force in the assembling direction of mold insert, encapsulate intensity is increased.

Illustrated among Fig. 3 by the screens button and mode make screens 03 seal die cavity 04, with the embodiment of a kind of rubber-wrapping structure of reaching the purpose that prevents that mold insert 02 from coming off.Be provided with button bit 41 at die cavity 04 top in the case, also be provided with the buckle 31 that is no less than in screens 03, by of buckle 31 is buckled into the connection that realization is connected with the plastic parts body in the button bit 41.

The utility model is considered the interchangeability of buckle 31, prevent that therein a buckle 31 damages after, screens 03 can not normally be used, so be equipped with buckle 31 in top and the bottom of screens 03.

Illustrated among Fig. 4 by the screens button and mode make screens 03 seal die cavity 04, with the embodiment of a kind of rubber-wrapping structure of reaching the purpose that prevents that mold insert 02 from coming off.In the case, die cavity 04 top is tabular, and at least one side of screens 03 also is tabular, in the case, can realize equally the purpose of screens 03 tight butt mold insert 02 by interference fit.

Among the embodiment of these two kinds of rubber-wrapping structures, plastic parts body 01 all is to form through injection moulding in advance, the shape that the shape of die cavity 04 and mold insert 02 and screens 03 are combined into one adapts, the shape of a corresponding side of screens 03 and shape mold insert 02 butt side and mold insert 02 adapts, namely must make a side of its inwall that after assembling, can reach die cavity 04 and mold insert 02 fit tightly the purpose that the end face of the insertion end of the opposite side of mold insert 02 and screens 03 fits tightly.

The utility model has changed known rubber-wrapping structure and process program thereof, be to form whole rubber-wrapping structure by injection moulding on the structure to change over the three-in-one rubber-wrapping structure that assembles, on the technique moulding being changed in one-shot forming assembles afterwards again, although the utility model is complicated with flow process on technique, but it is in encapsulate intensity, prevents stifled glue and prevents that from there is good effect mould damage aspect.

The above is described embodiment of the present utility model by reference to the accompanying drawings; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away from the scope situation that the utility model aim and claim protect, also can make a lot of forms, these all belong within the protection of the present utility model.

Claims

1. rubber-wrapping structure, it is characterized in that, comprise plastic parts body (01), mold insert (02), screens (03), described plastic parts body (01) has the die cavity (04) that holds described mold insert (02) and described screens (03), described mold insert (02) is encased in the described die cavity (04), the inner bottom part of the described mold insert described die cavity of (02) one side butt (04), described screens (03) are inserted in the described die cavity (04), the opposite side of the described mold insert of insertion end butt (02).

2. rubber-wrapping structure according to claim 1, it is characterized in that, described die cavity (04) top also is provided with button bit (41), also is provided with the buckle (31) that is no less than in the described screens (03), and one of described buckle (31) buckles into described button bit (41).

3. rubber-wrapping structure according to claim 1 is characterized in that, described plastic parts body (01) is injection molded in advance, and the shape that the shape of described die cavity (04) and described mold insert (02) and screens (03) are combined into one adapts.

4. rubber-wrapping structure according to claim 1 is characterized in that, shape and the described mold insert (02) with an end described mold insert (02) butt described screens (03) adapted by the shape of butt side.