CN204431662U - The secondary ejecting mechanism of plastic mould - Google Patents

Abstract

The utility model provides a kind of secondary ejecting mechanism of plastic mould, comprise elastomeric element, ejector sleeve and be positioned at the ejector sleeve pin of described ejector sleeve inside, in described ejector sleeve, pin can move in described ejector sleeve, described ejector sleeve outer surface is provided with ejector sleeve and fixes mold insert, described ejector sleeve is stretched out successively from described Ejector Retainer Plate, described ejector retainner plate, described B plate, described ejector sleeve is connected with described Ejector Retainer Plate and described ejector sleeve can move with described Ejector Retainer Plate, and described B plate is for stopping that described ejector sleeve fixes the motion of mold insert; In described ejector sleeve, pin one end is fixed on described Ejector Retainer Plate, and described elastomeric element one end is connected with described Ejector Retainer Plate, and the described elastomeric element other end is fixed mold insert with described ejector sleeve and is connected.The beneficial effects of the utility model are: the mould structure design of secondary ejecting mechanism simplified processing of the present utility model, simplification, the construction cycle shortening of mould, cost of manufacture reduce.

Description

Secondary ejection mechanism for plastic molds

technical field

The utility model relates to the field of molds, in particular to a secondary ejection mechanism for plastic molds.

Background technique

At present, when the part of the product in the general mold needs strong ejection, if the design is carried out according to the traditional method, in order to ensure the smooth ejection of the product. Both will use two sets of ejector plate structures for secondary ejection scheme design, which includes two ejector plates and two inclined ejectors. The current scheme has the following problems:

1. The complexity of the mold structure is high, which is not conducive to mold processing;

2. The mold design and production time is long;

3. The size of the mold is increased, the selection of injection molding machines must be increased, and the cost of injection molding must be increased;

4. The cost of mold making increases.

Utility model content

In order to solve the problems in the prior art, the utility model provides a secondary ejection mechanism of a plastic mold.

The utility model provides a secondary ejection mechanism of a plastic mold, which comprises a bottom plate, a thimble bottom plate, a thimble plate, and a B plate arranged sequentially from bottom to top. The secondary ejection mechanism also includes an elastic component, a barrel, and a The inner needle of the cylinder inside the cylinder, the inner needle of the cylinder can move in the cylinder, the outer surface of the cylinder is provided with a cylinder fixing insert, and the cylinder is sequentially removed from the bottom plate of the thimble , the thimble plate and the B plate protrude, the cylinder is connected with the thimble bottom plate, and the cylinder can move with the thimble bottom plate, and the B plate is used to block the fixing of the cylinder The movement of the insert: one end of the inner needle of the cylinder is fixed on the base plate of the thimble, one end of the elastic component is connected with the base plate of the thimble, and the other end of the elastic component is connected with the fixed insert of the cylinder.

As a further improvement of the utility model, the elastic component is a spring.

As a further improvement of the utility model, there are at least two springs.

As a further improvement of the present utility model, the secondary ejection mechanism further includes an A plate matched with the B plate.

As a further improvement of the utility model, a front mold core is provided in the A plate, a rear mold core is provided in the B plate, and the barrel extends into the rear mold core.

The beneficial effects of the utility model are: the secondary ejection mechanism of the utility model simplifies processing, simplifies the mold structure design, shortens the development cycle of the mold, and reduces the production cost.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Detailed ways

As shown in Figure 1, the utility model discloses a secondary ejection mechanism for a plastic mold, which includes a base plate 1, an ejector base plate 2, an ejector plate 3, and a B plate 4 arranged sequentially from bottom to top. The secondary ejection mechanism It also includes an elastic member, a sleeve 6, and an inner needle 7 located inside the sleeve 6, the inner needle 7 of the sleeve can move in the sleeve 6, and the outer surface of the sleeve 6 is provided with There is a sleeve fixing insert 8, and the sleeve 6 protrudes from the thimble base plate 2, the thimble plate 3, and the B plate 4 in turn, and the sleeve 6 is connected to the thimble base plate 2, and the The cylinder 6 can move with the thimble bottom plate 2, and the B plate 4 is used to block the movement of the cylinder fixing insert 8; one end of the inner needle 7 of the cylinder is fixed on the thimble bottom plate 2, so One end of the elastic component is connected to the thimble bottom plate 2 , and the other end of the elastic component is connected to the cylinder fixing insert 8 .

The elastic component is a spring 5, and there are at least two springs 5.

The secondary ejection mechanism also includes an A plate 9 cooperating with the B plate 4 .

A front mold core 10 is provided in the A plate 9 , a rear mold core 11 is provided in the B plate 4 , and the sleeve 6 extends into the rear mold core 11 .

The plastic mold also includes a square iron 12 , a runner plate 13 , and a panel 14 .

During operation, when the thimble bottom plate 2 moves upward through the injection molding machine mechanism, the cylinder fixing insert 8 and the cylinder 6 also move upward at the same time, when the cylinder fixing insert 8 completes the stroke S1, that is, the cylinder fixing insert 8 contacts When board B 4 is reached, the movement of the cylinder 6 and the fixed insert 8 of the cylinder is completed, and the product is lifted up by the cylinder 6, that is, the product is ejected for the first time; when the thimble bottom plate 2 continues to move upward, the spring 5 is compressed, and the cylinder 6 Keeping still, when the inner needle 7 of the cylinder moves upward to complete the stroke S2, the product is pushed up by the inner needle 7 of the cylinder, and the second ejection is completed!

The utility model simplifies the processing of the secondary ejection mechanism, simplifies the structure design of the mold, shortens the development cycle of the mold, and reduces the production cost.

The above content is a further detailed description of the utility model in combination with specific preferred embodiments, and it cannot be assumed that the specific implementation of the utility model is only limited to these descriptions. For a person of ordinary skill in the technical field to which the utility model belongs, without departing from the concept of the utility model, some simple deduction or substitutions can also be made, which should be regarded as belonging to the protection scope of the utility model.

Claims (5)

1. the secondary ejecting mechanism of a plastic mould, it is characterized in that: comprise the base plate set gradually from bottom to up, Ejector Retainer Plate, ejector retainner plate, B plate, this secondary ejecting mechanism also comprises elastomeric element, ejector sleeve, and be positioned at the ejector sleeve pin of described ejector sleeve inside, in described ejector sleeve, pin can move in described ejector sleeve, described ejector sleeve outer surface is provided with ejector sleeve and fixes mold insert, described ejector sleeve is successively from described Ejector Retainer Plate, described ejector retainner plate, stretch out in described B plate, described ejector sleeve is connected with described Ejector Retainer Plate, and described ejector sleeve can move with described Ejector Retainer Plate, described B plate is for stopping that described ejector sleeve fixes the motion of mold insert, in described ejector sleeve, pin one end is fixed on described Ejector Retainer Plate, and described elastomeric element one end is connected with described Ejector Retainer Plate, and the described elastomeric element other end is fixed mold insert with described ejector sleeve and is connected.

2. secondary ejecting mechanism according to claim 1, is characterized in that: described elastomeric element is spring.

3. secondary ejecting mechanism according to claim 2, is characterized in that: described spring is at least two.

4. secondary ejecting mechanism according to claim 1, is characterized in that: this secondary ejecting mechanism also comprises the A plate coordinated with described B plate.

5. secondary ejecting mechanism according to claim 4, is characterized in that: core rod before being provided with in described A plate, core rod after being provided with in described B plate, and described ejector sleeve stretches in described rear core rod.