The replaceable automatic trip model of mould injection mold
Technical field
The present invention relates to injection mold field, relate in particular to the replaceable automatic trip model of a kind of mould injection mold.
Background technology
In prior art, be limited by the shape of injection molding product, injection mold only uses a kind of product, in the time that shape of product is changed, need to redesign injection mold, reinstall, dismounting trouble, the corresponding a set of die assembly of a kind of product, even corresponding a whole set of injection machine, cost is high.
Meanwhile, in prior art, the injection mold of automatic demoulding is by ejection device, and knockout pin is directly as mould, ejection device.
For example, CN202623194 discloses a kind of injection mold demolding structure, adopts hydraulic jack to drive, compact conformation, mechanical action is stable, reliable, handling ease, but realize the injection mold demoulding by external independently injection mold demolding structure, cost increases, use inconvenient.
CN203496238 discloses a kind of injection mold of being convenient to the demoulding, ejector sleeve ejection in die cavity housing is made into carry out ejection by push pedal, it is obviously more firm that the structure of this employing push pedal ejection product is compared ejector sleeve, failure rate is low, and cheap, and the obstruction being subject in the time of the demoulding is still less, be conducive to the smooth demoulding, but this Injection Mold Design complexity, only changes push pedal into by ejector sleeve, can not use various shape of product.
Summary of the invention
The present invention has overcome the deficiencies in the prior art, and the replaceable automatic trip model of a kind of mould injection mold is provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is: the replaceable automatic trip model of mould injection mold, comprises demoulding guide bar receiver, thrust bearing, the first knockout pin, the second knockout pin, push rod, the first gag lever post, the first mold base, the second gag lever post, the second mold base and cast gate cage plate.
On cast gate cage plate, be provided with cast gate trepanning, on the second mold base, be provided with the gummosis relative with cast gate trepanning and enter hole.
The thrust face of demoulding guide bar receiver and the thrust face of thrust bearing be arranged in parallel, on the first mold base, be provided with the first demoulding through hole, the second demoulding through hole, one end of the first knockout pin, the second knockout pin is fixedly connected with demoulding guide bar receiver, and the other end is through the first demoulding through hole, the second demoulding through hole that extend into respectively the first mold base after thrust bearing.
Push rod two ends are fixedly connected with the first mold base with thrust bearing respectively.
The first mould and the second mould are arranged on the first mold base, the second mold base by screw respectively.
The first demoulding through hole, the second demoulding through hole are separately positioned on upper edge and the lower edge place of the first mould, and the first demoulding through hole, the second demoulding through hole are close to upper edge and the lower edge place of the first mould.
First gag lever post one end and thrust bearing are fixed, and the other end, through the first mold base, is provided with the first spacing hole adapting with the first gag lever post, for the relative position of spacing the first mold base, the second mold base on the second mold base.
Second gag lever post one end and cast gate cage plate are fixed, and the other end stretched out the second mold base, are provided with the second spacing hole adapting with the second gag lever post on the first mold base, for supporting the second mold base, meanwhile, ensure that the second mold base does not produce displacement.
The course of work of the present invention is as follows, demoulding guide bar receiver, thrust bearing, front end respectively connect the piston rod of a cylinder, the cylinder that connects thrust bearing promotes piston rod, push rod drives the first mold base reach, after the first mould and the second mould pressing injection moulding, thrust bearing moves after driving push rod, the first mould separates with the second mould, at this moment, demoulding guide bar receiver promotes the first knockout pin, the second knockout pin reach, the first knockout pin, the second knockout pin pass after the first demoulding through hole, the second demoulding through hole, and top is to the edge of injecting products, by de-molding injection molded products.
On the first gag lever post, be provided with the first spring, the first both ends of the spring is fixed with thrust bearing, the first mold base respectively, prevents impulse force damage push rod.
On the second gag lever post, be provided with the second spring, the two ends of the second spring are connected with cast gate cage plate with the second mold base respectively, prevent from damaging sprue bush.
On the second mold base, be provided with two gummosis passages, two gummosis passages are separately positioned on the upper and lower of the second mould, and two gummosis passages are connected, and injection moulding efficiency is high.
Penetrate the first mold base, the second mold base for the screw that the first mould, the second mould are fixed on the first mold base, the second mold base by the opposite face of the first mould, the second mould, screw does not penetrate the first mould, the second mould, does not affect the injection moulding shape of injection mold.
Thrust bearing is provided with the cavity of an end opening, and demoulding guide bar receiver is arranged in cavity, and the opening part of thrust bearing is provided with the convex surface for spacing demoulding guide bar receiver, for spacing demoulding guide bar receiver, prevents that displacement is excessive.
Compared with prior art, beneficial effect of the present invention has: the present invention acts on the demoulding by the first knockout pin, the second knockout pin simultaneously, can adapt to different injection molds, meanwhile, the first mould and the second mould are arranged on the first mold base, the second mold base by screw respectively.Facilitate injection mold to change.
Further, the practical dual gag lever post of the present invention, accurate positioning, prevents displacement.
Further, the present invention adopts spring buffer, protection push rod, long service life.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, the replaceable automatic trip model of mould injection mold, comprises demoulding guide bar receiver 1, thrust bearing 2, the first knockout pin 301, the second knockout pin 302, push rod 4, the first gag lever post 5, the first mold base 6, the second gag lever post 7, the second mold base 8 and cast gate cage plate 9.
On cast gate cage plate 9, be provided with cast gate trepanning, on the second mold base 8, be provided with the gummosis relative with cast gate trepanning and enter hole.
The thrust face of the thrust face of demoulding guide bar receiver 1 and thrust bearing 2 be arranged in parallel, on the first mold base 6, be provided with the first demoulding through hole 1201, the second demoulding through hole 1202, one end of the first knockout pin 301, the second knockout pin 302 is fixedly connected with demoulding guide bar receiver 1, and the other end is through rear the first demoulding through hole 1201, the second demoulding through hole 1202 that extend into respectively the first mold base 6 of thrust bearing 2.
Push rod 4 two ends are fixedly connected with the first mold base 6 with thrust bearing 2 respectively.
The first mould 1001 and the second mould 1002 are arranged on the first mold base 6, the second mold base 8 by screw respectively.
The first demoulding through hole 1201, the second demoulding through hole 1202 are separately positioned on upper edge and the lower edge place of the first mould 1001, and the first demoulding through hole 1201, the second demoulding through hole 1202 are close to upper edge and the lower edge place of the first mould 1001.
First gag lever post 5 one end and thrust bearing 2 are fixing, and the other end is provided with through on the first mold base 6, the second mold bases 8 the first spacing hole adapting with the first gag lever post 5, for the relative position of spacing the first mold base 6, the second mold base 8.
Second gag lever post 7 one end and cast gate cage plate 9 are fixing, and the other end stretched out on the second mold base 8, the first mold bases 6 and is provided with the second spacing hole adapting with the second gag lever post 7, for supporting the second mold base 8, meanwhile, ensure that the second mold base 8 does not produce displacement.
The course of work of the present invention is as follows, demoulding guide bar receiver 1, thrust bearing 2, the each piston rod that connects a cylinder of front end, the cylinder that connects thrust bearing 2 promotes piston rod, push rod 4 drives the first mold base 6 to move forward, after the first mould 1001 and the second mould 1002 pressing injection mouldings, thrust bearing 2 moves after driving push rod 4, the first mould 1001 separates with the second mould 1002, at this moment, demoulding guide bar receiver 1 promotes the first knockout pin 301, the second knockout pin 302 moves forward, the first knockout pin 301, the second knockout pin 302 passes the first demoulding through hole 1201, after the second demoulding through hole 1202, top is to the edge of injecting products, by de-molding injection molded products.
On the first gag lever post 5, be provided with the first spring, the first both ends of the spring is fixed with thrust bearing 2, the first mold base 6 respectively, prevents impulse force damage push rod 4.
On the second gag lever post 7, be provided with the second spring, the two ends of the second spring are connected with cast gate cage plate 9 with the second mold base 8 respectively, prevent from damaging sprue bush.
On the second mold base 8, be provided with two gummosis passages, two gummosis passages are separately positioned on the upper and lower of the second mould 1002, and two gummosis passages are connected, and injection moulding efficiency is high.
Penetrate the first mold base 6, the second mold base 8 for the screw that the first mould 1001, the second mould 1002 are fixed on the first mold base 6, the second mold base 8 by the opposite face of the first mould 1001, the second mould 1002, screw does not penetrate the first mould 1001, the second mould 1002, does not affect the injection moulding shape of injection mold.
Thrust bearing 2 is provided with the cavity of an end opening, and demoulding guide bar receiver 1 is arranged in cavity, and the opening part of thrust bearing 2 is provided with the convex surface for spacing demoulding guide bar receiver 1, for spacing demoulding guide bar receiver 1, prevents that displacement is excessive.
Below be only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.