CN210190462U - Injection mold with pneumatic ejection and push ring - Google Patents

Abstract

The utility model discloses an injection mold with it is pneumatic ejecting and push away ring, its characterized in that: the injection mold comprises a fixed mold plate (1) and a movable mold plate (2), a fixed mold insert (3) is arranged in the fixed mold plate (1), a movable mold insert (4) is arranged in the movable mold plate (2), two fixed die air passages (5) which are symmetrically distributed are arranged in the fixed die insert (3), the outlet end of the fixed die air passage (5) is positioned at the inner side of the fixed die insert (3), two symmetrically distributed moving die air passages (6) are arranged in the moving die insert (4), the outlet end of the movable mould gas circuit (6) is positioned at the inner side of the movable mould insert (4), the mould is characterized in that an ejector plate (7) is arranged in the movable mould plate (2), a plurality of ejector rods (8) which are uniformly distributed in the circumferential direction are connected to the ejector plate (7), the top ends of all the ejector rods (8) are connected with a push ring (9) together, and the push ring (9) corresponds to the edge of a product (10).

Description

Injection mold with pneumatic ejection and push ring

Technical Field

The utility model relates to an injection mold field, especially an injection mold with pneumatic ejecting and throw-out collar.

Background

In daily life, various plastic products have been widely used. In the plastic products, there are often products similar to a basin shape, if the inner cavity of the product is deep, air does not exist between the product and the insert due to the close fit between the product and the insert in the mold opening process, at this time, the product can be pressed on the insert by the atmospheric pressure and cannot be separated, if the product is separated by force, the surface of the product can be scratched, and the quality of the product can be affected.

In addition, the above situation may occur between a product and a moving die insert, and between a product and a fixed die insert, so that the above problems often occur in the production process of the conventional parts, and finally the surface of the product is whitened, deformed and even damaged, and the like, which greatly affects the quality and the production efficiency of the product. There is therefore a need for a method or apparatus that addresses the above-mentioned problems.

Disclosure of Invention

The utility model relates to a solve the above-mentioned not enough that prior art exists, provide a simple structure, design benefit utilizes pneumatic realization ejecting in advance, utilizes annular push rod to realize the ejecting injection mold of goods.

The technical solution of the utility model is that: the utility model provides an injection mold with pneumatic ejecting and throw-out collar which characterized in that: the injection mold comprises a fixed mold plate 1 and a movable mold plate 2, a fixed mold insert 3 is arranged in the fixed mold plate 1, a movable mold insert 4 is arranged in the movable mold plate 2, two symmetrically-distributed fixed mold gas circuits 5 are arranged in the fixed mold insert 3, the outlet end of each fixed mold gas circuit 5 is positioned on the inner side of the corresponding fixed mold insert 3, two symmetrically-distributed movable mold gas circuits 6 are arranged in the corresponding movable mold insert 4, the outlet end of each movable mold gas circuit 6 is positioned on the inner side of the corresponding movable mold insert 4, an ejector plate 7 is arranged in the corresponding movable mold plate 2, a plurality of ejector rods 8 which are uniformly distributed in the circumferential direction are connected onto the ejector plate 7, and all the top ends of the ejector rods 8 are jointly connected with a push ring 9, and the push ring.

Compared with the prior art, the utility model, have following advantage:

this kind of structural style's injection mold who has pneumatic ejecting and push away the ring, its simple structure, design benefit, rationally distributed. Aiming at the problems of the traditional injection mold in the process of preparing a basin-shaped product, a movable mold gas circuit and a fixed mold gas circuit are creatively added on the basis of the original injection mold, high-pressure gas is injected between the product and a movable mold insert and between the product and a fixed mold insert by using the gas circuits when the mold is opened, so that the product is respectively separated from the movable mold insert and the fixed mold insert under the action of air pressure, and then the product is ejected by using an annular push rod (push ring), and finally the demolding operation is realized. The injection mold with the structure can effectively prevent the problems that the surface of the basin-shaped part is pulled and damaged, and the basin-shaped part is difficult to eject and demold in the preparation process. And the manufacturing process is simple, the manufacturing cost is low, so that the novel LED lamp has multiple advantages, is particularly suitable for popularization and application in the field, and has a very wide market prospect.

Drawings

Fig. 1 is a schematic structural view (mold clamping state) of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram (mold-open state) of the embodiment of the present invention.

Detailed Description

The following description will explain embodiments of the present invention with reference to the drawings. As shown in fig. 1 and 2: the utility model provides an injection mold with pneumatic ejecting and throw-out collar, it includes fixed die plate 1 and movable die plate 2, be provided with cover half insert 3 in the fixed die plate 1, be provided with movable mould insert 4 in the movable die plate 2, be provided with two symmetric distribution's cover half gas circuit 5 in cover half insert 3, the exit end of cover half gas circuit 5 is located the inboard that the cover half inserted 3, then is provided with two symmetric distribution's movable mould gas circuit 6 in movable mould insert 4, the exit end of movable mould gas circuit 6 is located the inboard that the movable mould inserted 4, be provided with ejector plate 7 in the movable die plate 2, be connected with a plurality of ejector pins 8 in the circumferencial direction evenly distributed on ejector plate 7, all the top of ejector pin 8 is connected with throw-out collar 9 jointly, throw-out collar 9 is corresponding with the edge.

The utility model discloses injection mold with pneumatic ejecting and push away ring's working process as follows: the movable die plate 2 and the fixed die plate 1 move oppositely to realize die assembly, after die assembly is carried out, the fixed die insert 3 and the movable die insert 4 are enclosed together to form a die cavity, a material in a molten state is filled into the die cavity by the injection molding machine, a product 10 is formed after the material is cooled and molded, the product 10 is basin-shaped, and the cavity part of the product is relatively deep;

when the mold is opened, firstly, high-pressure gas is sprayed between a product 10 and a fixed mold insert 3 through a fixed mold gas path 5, the product 10 is separated from the fixed mold insert 3 under the action of the high-pressure gas, in this case, after a fixed mold plate 1 is separated from a movable mold plate 2, the product 10 is left on one side of a movable mold insert 4, then, the high-pressure gas is sprayed between the product 10 and the movable mold insert 4 through a movable mold gas path 6, under the action of the high-pressure gas, the product 10 is separated from the movable mold insert 4, meanwhile, a molding machine drives ejector rods 8 to perform ejection action, push rings 9 connected with the ejector rods 8 push the edges of the product 10 to completely separate the product from the movable mold insert 4, then, a manipulator acts to take the product away, and the mold is closed to perform injection molding on the.

Claims (1)

1. The utility model provides an injection mold with pneumatic ejecting and throw-out collar which characterized in that: the injection mold comprises a fixed mold plate (1) and a movable mold plate (2), a fixed mold insert (3) is arranged in the fixed mold plate (1), a movable mold insert (4) is arranged in the movable mold plate (2), two fixed die air passages (5) which are symmetrically distributed are arranged in the fixed die insert (3), the outlet end of the fixed die air passage (5) is positioned at the inner side of the fixed die insert (3), two symmetrically distributed moving die air passages (6) are arranged in the moving die insert (4), the outlet end of the movable mould gas circuit (6) is positioned at the inner side of the movable mould insert (4), the mould is characterized in that an ejector plate (7) is arranged in the movable mould plate (2), a plurality of ejector rods (8) which are uniformly distributed in the circumferential direction are connected to the ejector plate (7), the top ends of all the ejector rods (8) are connected with a push ring (9) together, and the push ring (9) corresponds to the edge of a product (10).

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