CN205326169U - Plastic pouring loose core mould - Google Patents

Abstract

The utility model relates to a plastics processing mould discloses a plastic pouring loose core mould, and including cover half and movable mould, cover half and movable mould looks lock form the confined die cavity, still are equipped with the seat of loosing core between cover half and the movable mould, and the seat of loosing core is pressed from both sides between movable mould and cover half, is equipped with the boss that is used for making the blind hole on the work piece on the seat of loosing core, and this boss extends to in the die cavity, be equipped with down tube and wedge on the cover half, this down tube runs through in the seat of loosing core, and the wedge is located that the one end of die cavity is kept away from to the seat of loosing core and the contact that offsets, the wedge face of lower extreme for suiting with the wedge of the seat of loosing core, and it is equipped with the pressure spring to loose core between seat and the cover half. This scheme is through above -mentioned structure for the drawing of patterns and the completion simultaneously of loosing core, and utilized same power supply (being movable mould and cover half drawing of patterns power), simplified the structure, the operation of also need not loosing core alone makes drawing of patterns core pulling process convenient simple.

Description

Plastic cement cast core-pulling die

Technical field

This utility model relates to a kind of plastic machining mold。

Background technology

Injection moulding is a kind of method that industrial products produce moulding。Product generally uses rubber injection mold and plastic injection。Injection moulding also can dispensing molding die platen press and casting die。It is utilize mould for plastics to make the main former of variously-shaped plastic thermoplastic or thermosetting material that injection (mo(u)lding) machine (is called for short injector or injection machine), and injection moulding is realized by injection machine and mould。Product is widely used in: the industries such as mobile phone, laptop computer, multiple plastic shell, communication, micro machine, computer, electrical equipment, electronics, toy, clock and watch, lamp decoration, locomotive。Injection mold is the instrument producing plasthetics, is also to confer to the instrument of plasthetics complete structure and accurate dimension。A kind of processing method that injection mo(u)lding is used when being and produce some complex-shaped parts in batches, refers specifically to by high pressure, the material melted that is heated is injected die cavity, after cooled solidification, obtains formed products。

Day by day maturation along with injection molding technology, increasing plastic cement products can be produced by injection moulding, simultaneously that the requirement of mould is also more and more higher, currently for when there is poroid work pieces process, mostly it is adopt operation of loosing core, extend in die cavity by plug, plug is extracted out after the plastic rubber shaping in die cavity, namely the workpiece with hole is obtained, but on original mould, add plug, can cause additionally arranging core-pulling device, thus also need to be equipped with other power source, this a series of device combines space hold height and complex operation。

Utility model content

This utility model is intended to provide a kind of simple in construction, easy to operate plastic cement cast core-pulling die。

A kind of plastic cement cast core-pulling die in this programme, including fixed half and moving half, fixed half and moving half is interlocked and forms the die cavity closed, it is additionally provided with, between described fixed half and moving half, seat of loosing core, seat of loosing core is sandwiched between dynamic model and cover half, seat of loosing core is provided with the boss for making the blind hole on workpiece, and this boss extends in die cavity；Described cover half is provided with brace and wedge, and this brace runs through seat of loosing core, and wedge is positioned at seat of loosing core and contacts away from one end of die cavity offseting with seat of loosing core, and the lower end of seat of loosing core is the lozenges adapted with wedge, looses core and is provided with stage clip between seat and cover half。

Beneficial effect: dynamic model and cover half fit, make cavity closed, cast fused solution is deposited in die cavity curing molding, then dynamic model and cover half are separated, when the relative cover half of dynamic model is moved apart, die cavity is while opening, seat of loosing core flicks under the elastic force of stage clip, the direction that seat of loosing core moves to dynamic model is moved, loose core and be also combined with the brace being fixed on cover half in seat and coordinate at the wedge of an end of loosing core, seat of loosing core is sandwiched between wedge and brace, the seat that causes loosing core moves only along the incline direction of brace, so die cavity is while opening, seat of loosing core also is doing oblique movement, cause that the projection loosing core on seat is extracted out from workpiece。The program passes through said structure so that the demoulding and loosing core simultaneously completes, and make use of the same power source (i.e. the mould opening force of dynamic model and the cover half demoulding), simplifies structure, without individually carrying out operation of loosing core so that demoulding process of loosing core is convenient and simple。

Further, also including cover half seat and dynamic model seat, described cover half is arranged on cover half seat, and dynamic model is arranged on dynamic model seat, is connect by cylinders between cover half seat and dynamic model seat。By air cylinder driven, being device automatization more, save manpower, the setting of dynamic model seat facilitates the installation of cylinder。

Further, on described dynamic model seat, the end of opposite wedge block is provided with cushion, it is to avoid when dynamic model and cover half Guan Bi, wedge collides dynamic model inwall, slows down closure pressing speed simultaneously, increases the stability of mechanism。

Further, described dynamic model is provided with push rod, and this push rod extends to die cavity through dynamic model seat and dynamic model, promotes push rod, it is possible to released by the workpiece being bonded on dynamic model, laborsaving。

Further, the end of described push rod is provided with handle, facilitates holding of push rod。

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model plastic cement cast core-pulling die embodiment。

Detailed description of the invention

Below by detailed description of the invention, this utility model is described in further detail:

Accompanying drawing labelling in Figure of description includes: cover half 1, stage clip 11, brace 12, wedge 13, dynamic model 2, cushion 21, seat 3 of loosing core, boss 31, push rod 4。

Embodiment is substantially as shown in Figure 1:

Plastic cement cast core-pulling die in this programme, including cover half 1 and dynamic model 2, cover half 1 and dynamic model 2 are interlocked and form the die cavity closed, seat 3 of loosing core also has been clamped between cover half 1 and dynamic model 2, seat 3 of loosing core is sandwiched between dynamic model 2 and cover half 1, loose core seat 3 upper end for making the boss 31 of the blind hole on workpiece, and this boss 31 extends in die cavity。

Cover half 1 is from top to bottom welded with brace 12 and wedge 13, this brace 12 is through seat 3 of loosing core, wedge 13 is positioned at seat 3 of loosing core away from one end of die cavity the contact that offsets, the loose core lower end of seat 3 is the lozenges adapted with wedge 13, this stage clip 11 is connected to screw, screw is screwed into looses core on seat 3, and welds with stage clip 11, and stage clip 11 other end is connected on cover half 1。

Cover half 1 is arranged on cover half 1, and dynamic model 2 is arranged on dynamic model 2, is connect by cylinders between cover half 1 and dynamic model 2。By air cylinder driven, being device automatization more, save manpower, the setting that dynamic model is 2 facilitates the installation of cylinder。The end of the upper opposite wedge block 13 of dynamic model 2 is provided with cushion 21, and lid cushion 21 adopts sponge to make, it is to avoid when dynamic model 2 and cover half 1 Guan Bi, wedge 13 collides dynamic model 2 inwall, slows down closure pressing speed simultaneously, increases the stability of mechanism。

Running through on dynamic model 2 and be inserted with push rod 4, this push rod 4 extends to die cavity through dynamic model 2 and dynamic model 2, promotes push rod 4, it is possible to released by the workpiece being bonded on dynamic model 2, laborsaving。The end of push rod 4 is provided with handle, facilitates holding of push rod 4。

Operation principle: dynamic model 2 and cover half 1 fit, make cavity closed, cast fused solution is deposited in die cavity curing molding, then dynamic model 2 and cover half 1 are separated, when the relative cover half 1 of dynamic model 2 is moved apart, die cavity is while opening, loose core seat 3 under the elastic force of stage clip 11 flick, the direction that seat 3 of loosing core moves to dynamic model 2 is moved, loose core and be also combined with the brace 12 being fixed on cover half 1 in seat 3 and coordinate at the wedge 13 of seat 3 end of loosing core, seat 3 of loosing core is sandwiched between wedge 13 and brace 12, the seat 3 that causes loosing core moves only along the incline direction of brace 12, so die cavity is while opening, seat 3 of loosing core also is doing oblique movement, cause that the projection loosed core on seat 3 is extracted out from workpiece。The program passes through said structure so that the demoulding and loosing core simultaneously completes, and make use of the same power source (i.e. dynamic model 2 and cover half 1 demoulding power), simplifies structure, without individually carrying out operation of loosing core so that demoulding process of loosing core is convenient and simple。

Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this。Should be understood that; for a person skilled in the art, under the premise without departing from this utility model structure, it is also possible to make some deformation and improvement; these also should be considered as protection domain of the present utility model, and these are all without affecting effect and the practical applicability that this utility model is implemented。The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. records the content that may be used for explaining claim。

Claims (5)

1. a plastic cement cast core-pulling die, including fixed half and moving half, fixed half and moving half is interlocked and forms the die cavity closed, it is characterized in that: be additionally provided with, between described fixed half and moving half, seat of loosing core, seat of loosing core is sandwiched between dynamic model and cover half, seat of loosing core is provided with the boss for making the blind hole on workpiece, and this boss extends in die cavity；Described cover half is provided with brace and wedge, and this brace runs through seat of loosing core, and wedge is positioned at seat of loosing core and contacts away from one end of die cavity offseting with seat of loosing core, and the lower end of seat of loosing core is the lozenges adapted with wedge, looses core and is provided with stage clip between seat and cover half。

2. plastic cement according to claim 1 cast core-pulling die, it is characterised in that: also including cover half seat and dynamic model seat, described cover half is arranged on cover half seat, and dynamic model is arranged on dynamic model seat, is connect by cylinders between cover half seat and dynamic model seat。

3. plastic cement according to claim 2 cast core-pulling die, it is characterised in that: on described dynamic model seat, the end of opposite wedge block is provided with cushion。

4. plastic cement according to claim 3 cast core-pulling die, it is characterised in that: described dynamic model is provided with push rod, and this push rod passes dynamic model seat and dynamic model and extends in die cavity。

5. plastic cement according to claim 4 cast core-pulling die, it is characterised in that: the end of described push rod is provided with handle。