CN204526019U - Second ejection mold - Google Patents

Abstract

The utility model discloses a secondary ejection die, it still includes the panel, the A board that is equipped with the master model, the push pedal that is equipped with public mould, layer board, thimble board, bottom plate, square push rod and thimble, panel, A board, push pedal, layer board, thimble board and bottom plate superpose in proper order from top to bottom, be equipped with the mold insert on the public mould, this mold insert is connected with the layer board, one end of square push rod is fixed on the thimble board, and the other end is connected with the push pedal through stroke spacing subassembly, one end of thimble is fixed on the thimble board, and the other end runs through the mold insert, and can stretch into the die cavity of public mould; the utility model discloses the structure is ingenious, reasonable, and whole secondary ejecting action is smooth and easy, balanced, and the reliability is high, effectively promotes work efficiency, guarantees product quality, and drawing of patterns is effectual, and is whole simple moreover, easily realizes, and is with low costs, does benefit to extensive popularization.

Description

Second ejection mold

technical field

The utility model relates to the technical field of molds, in particular to a secondary ejection mold.

Background technique

Mold is an indispensable and important equipment in injection molding. Injection molding is a method of injecting hot-melt plastic material into a closed molding space with the desired shape in the mold at high speed, and after the plastic material cools and solidifies, the mold is opened to eject the solidified plastic processed product to obtain a molded product. . Since the injection molding method has the characteristics of low molding cost, short molding cycle, simple molding process, and easy molding of plastic products with complex shapes, it is widely used in the field of plastic product manufacturing.

When the shape of the finished product to be taken out from the mold is special, or according to the requirements of mass production, if the finished product is still in the mold cavity after one ejection, or cannot fall off automatically, it is necessary to add another ejection action , such ejection action is the second ejection. Secondary ejection can make the ejection process smoother. For some products that require a large ejection stroke, the use of secondary ejection can reduce the force exerted by the ejector pin during ejection and avoid product defects during ejection. However, although the existing secondary ejection molds can roughly meet the requirements of use, the design is not ingenious, the structure is complicated, the processing cycle is long, the cost is high, and it is difficult to maintain, and the entire movement of the mold is not very smooth and balanced.

Utility model content

In view of the above disadvantages, the purpose of this utility model is to provide a secondary ejection mold with simple and reliable structure, easy to implement, low cost, and smooth and balanced ejection action.

In order to achieve the above object, the technical solution provided by the utility model is: a secondary ejection mold, which also includes a panel, an A plate provided with a female mold, a push plate provided with a male mold, a supporting plate, a thimble plate, Bottom plate, square push rod and thimble, described panel, A board, push plate, support plate, thimble plate and base plate are stacked sequentially from top to bottom, described male mold is provided with insert, and this insert and support One end of the square push rod is fixed on the thimble plate, the other end is connected with the push plate through a travel limit assembly, one end of the thimble is fixed on the thimble plate, and the other end penetrates The insert can extend into the cavity of the male mold.

As an improvement of the present utility model, the stroke limit assembly includes a spring block and a stroke limit block, the spring block is arranged on the push plate and is located at the end face of the square push rod, the stroke One end of the limiting block is arranged on the supporting plate, and the other end is provided with a position extending toward the push plate, and is provided with a limiting portion for limiting the elastic block to be stationary after the elastic block moves to a certain position.

As an improvement of the utility model, the ejector plate includes a lower plate and an upper plate stacked with the lower plate.

The beneficial effects of the utility model are: the utility model has an ingenious and reasonable structure. When the mold is opened, the product stays on the male mold under the action of its tight force. Under the driving force of the thimble plate, the square push rod pushes The bullet moves forward, so that the push plate moves forward, and the thimble also moves forward together with the product. When it moves to the preset position, the push plate stops under the action of the travel limit block blocking the bullet; At this time, the insert is completely separated from the product; under the continuous action of the driving force of the ejector plate, the ejector pin still moves forward, and then pushes the product, so that the product is completely separated from the male mold, and the product can be automatically dropped; the whole secondary The ejection action is smooth and balanced, with high reliability, effectively improving work efficiency, ensuring product quality, and good demoulding effect, and the whole is simple, easy to implement, low cost, and conducive to widespread promotion.

Below in conjunction with accompanying drawing and embodiment, the utility model is further described.

Description of drawings

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

Detailed ways

Referring to Fig. 1, a secondary ejection mold provided in this embodiment also includes a panel 1, an A plate 3 provided with a female mold 2, a push plate 5 provided with a male mold 4, a supporting plate 6, and an ejector plate 7 , base plate 8, square push rod 9 and thimble 10, the panel 1, A plate 3, push plate 5, supporting plate 6, thimble plate 7 and base plate 8 are stacked sequentially from top to bottom, and the male mold 4 There is an insert 11 on it, the insert 11 is connected with the supporting plate 6, one end of the square push rod 9 is fixed on the ejector plate 7, and the other end is connected with the push plate 5 through a travel limit assembly One end of the thimble 10 is fixed on the thimble plate 7 , the other end passes through the insert 11 and can extend into the cavity of the male mold 4 .

Specifically, the stroke limiter assembly includes an elastic block 12 and a stroke limiter 13. The elastic block 12 is arranged on the push plate 5 and is located at the end face of the square push rod 9. The stroke limiter One end of the positioning block 13 is arranged on the supporting plate 6 , and the other end is provided with a position extending toward the push plate 5 , and is provided with a limiting portion for limiting the elastic block 12 to be stationary after the elastic block 12 moves to a certain position. A limit rod 14 is also provided between the push plate 5 and the supporting plate 6 to limit the separation distance between the pushing plate 5 and the supporting plate 6 .

The ejector plate 7 includes a lower plate and an upper plate stacked on the lower plate. One end of the thimble 10 is provided with a head, and the lower surface of the upper plate is provided with a recess suitable for the head, the thimble 10 runs through the upper plate, and the head is located in the recess, and the lower surface The plate is superimposed on the upper plate, thereby closing the opening of the recess.

When the mold is opened, the product 15 stays on the male mold 4 under the action of its tight force, and under the driving force of the thimble plate 7, the square push rod 9 pushes the elastic block 12 to move forward, so that the push plate 5 moves forward, and the thimble 10 also moves forward together with the product. When it moves to the preset position, the push plate 5 stops moving under the action of the travel limit block 13 blocking the elastic block 12; at this time, the insert 11 is completely disengaged from product 15, that is, the ejection action for the first time is completed.

Under the continuous action of the driving force of the thimble plate 7, the push plate 5 stops under the action of the limit rod 14 and the stroke limit block 13, while the thimble 10 still moves forward, and then pushes the product 15, The product 15 is completely separated from the male mold 4, and the product can be automatically dropped; that is, the second ejection action is completed, and the entire second ejection action is smooth, balanced, and reliable, and the product can be automatically dropped and demolded The effect is good, and the work efficiency is effectively improved.

According to the disclosure and teaching of the above specification, those skilled in the art to which the present utility model belongs can also change and modify the above embodiment. Therefore, the utility model is not limited to the specific implementation manners disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present utility model. As described in the above embodiments of the utility model, molds of other structures obtained by adopting the same or similar structure are all within the protection scope of the utility model.

Claims (3)

1. a secondary ejection mold, is characterized in that, it also comprises panel, is provided with the A plate of die, is provided with the push plate of male die, supporting plate, thimble plate, base plate, square push rod and thimble, so The panel, plate A, push plate, supporting plate, thimble plate and base plate are stacked sequentially from top to bottom, and the male mold is provided with an insert, which is connected with the supporting plate, and the square push rod One end of the thimble is fixed on the thimble plate, and the other end is connected with the push plate through a travel limit assembly. One end of the thimble is fixed on the thimble plate, and the other end passes through the insert and can extend into the In the cavity of the male mold. 2. The secondary ejection mold according to claim 1, characterized in that: the travel limit assembly includes an elastic block and a travel limit block, the elastic block is arranged on the push plate and is located on the The position of the end face of the square push rod, one end of the stroke limit block is set on the supporting plate, and the other end is provided to extend toward the push plate, and is provided to limit the position of the bullet block after the bullet block moves to a certain position. Static limiter. 3. The secondary ejection mold according to claim 1 or 2, wherein the ejector plate comprises a lower plate and an upper plate overlapping with the lower plate.