CN211105415U

CN211105415U - Injection mold is used in plastic products production

Info

Publication number: CN211105415U
Application number: CN201922042044.1U
Authority: CN
Inventors: 陈国辉
Original assignee: Fengmei Plastic Industry Co ltd
Current assignee: Fengmei Plastic Industry Co ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-07-28
Anticipated expiration: 2029-11-25

Abstract

The utility model relates to the technical field of plastic molds, in particular to an injection mold for producing plastic products, which comprises a fixed mold, a movable mold core, an ejector rod of an injection molding machine, a push rod of the injection molding machine, a movable mold, a fixed mold cavity and a feed inlet, wherein one side of the fixed mold, which is far away from the movable mold, is connected with a gas outlet pipeline of a gas pump, two symmetrical gas outlets are arranged on the gas outlet pipeline of the gas pump, a gas pipe is communicated with the gas outlet, one end of the gas pipe, which is far away from the gas outlet, is communicated with the fixed mold cavity, one end of the gas pipe, which is close to the gas outlet, is provided with a piston head, one end of the piston head is connected with a piston rod positioned in the gas pipe, the top and the bottom of the piston rod are both in sliding connection with a sliding chute arranged on the inner wall of, the working efficiency is influenced.

Description

Injection mold is used in plastic products production

Technical Field

The utility model relates to a plastic mold technical field specifically is an injection mold is used in plastic products production.

Background

The injection mold is a tool for producing plastic products, is also called injection molding, and is a molding method combining injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors, various shapes from simple to complex, small sizes, accurate product size, easy replacement of products, capability of forming products with complex shapes, and suitability for the molding processing fields of mass production, products with complex shapes and the like.

At present, when a plastic part product of an injection mold is demolded, the condition of mold sticking is easy to occur, particularly, some shell and box products are easy to occur, vacuum exists when the mold is opened, the product is directly absorbed on a movable mold or a fixed mold, if the product is absorbed on the movable mold, demolding can be performed through a demolding mechanism of the movable mold, but the plastic part product absorbed on the fixed mold needs to be manually taken down from a rear mold, and the normal production efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides an injection mold is used in plastic products production possesses the advantage such as a piece goods of moulding of adhesion on the uninstallation back mould, has solved the sticking of appearing on the back mould, influences work efficiency's problem.

The utility model discloses an injection mold is used in plastic products production, including the cover half, the movable mould core, injection molding machine ejector pin, the injection molding machine push rod, the movable mould, cover half die cavity and feed inlet, the cover half is kept away from the one side of movable mould and is connected with the pipeline of giving vent to anger of air pump, set up the gas outlet of two symmetries on the pipeline of giving vent to anger of air pump, the intercommunication has the trachea on the gas outlet, the one end and the cover half die cavity intercommunication of gas outlet are kept away from to the trachea, the one end that the trachea is close to the gas outlet is provided with the piston head, the one end of piston head is connected with the piston rod that is located the trachea, the spout looks sliding connection that the top and.

The utility model discloses an injection mold for plastic product production, wherein, four corners of one side of the movable mold close to the fixed mold are provided with positioning columns, and the fixed mold is provided with positioning grooves matched with the positioning columns; the design has the advantages of achieving the purpose of positioning and facilitating mold closing operation.

The utility model discloses an injection mold is used in plastic products production, wherein, tracheal side is L type structures, and the inner wall that the trachea is close to cover half die cavity one end is smooth inner wall, and this design avoids plastic products's mouth of a river adhesion on the trachea inner wall to also make things convenient for the slip of piston head.

The utility model discloses an injection mold for plastic product production, wherein, the piston head is a metal head, and one side of the piston head close to the fixed mold cavity is a smooth plane; the design avoids the piston head from influencing the injection molding of the plastic part product.

The utility model discloses an injection mold for plastic product production, wherein, one end of the chute close to the fixed mold cavity is provided with a limiting block; the design avoids the condition that the piston head protrudes too much to cause slip, so that the piston head can just eject the plastic part product and demold the plastic part product.

The utility model discloses an injection mold for plastic product production, wherein, the inner cavity of the piston rod is a hollow structure, and one end of the piston rod, which is far away from the piston head, is provided with a hole; the design facilitates compressed air to push the piston rod and the piston head, so that the piston head can be pushed out stably.

The utility model discloses an injection mold for plastic product production, wherein, the inner wall of the air pipe is also provided with another group of limiting blocks close to the piston head; the design avoids the piston head from excessively shrinking into the air pipe in the injection molding process to influence the quality of a plastic part product.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a set up air pump, trachea, spout, piston head, piston rod, slider, extension spring and the couple in the cover half, jet high-pressure gas at the air pump after, promote piston rod and piston head ejecting outward to with the ejecting drawing of patterns of the plastic part goods of adhesion on the cover half, avoid the adhesion of plastic part goods on the cover half, influence going on continuously of normal work.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view of the mold structure of the present invention;

FIG. 2 is a schematic view of the sectional structure of the fixed mold of the present invention;

FIG. 3 is a schematic view of the structure at A of FIG. 2 according to the present invention;

fig. 4 is a schematic diagram of the side structure of the piston rod of the present invention.

In the figure: 1. fixing a mold; 2. a movable mold core; 3. ejecting a rod by an injection molding machine; 4. pushing a push rod of the injection molding machine; 5. moving the mold; 6. a positioning column; 7. an air pump; 8. an air outlet; 9. a die cavity is fixed; 10. an air tube; 11. a chute; 12. a piston head; 13. a piston rod; 14. a feed inlet; 15. a slider; 16. a tension spring; 17. and (4) hanging hooks.

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1-4, the injection mold for plastic product production of the present embodiment includes a fixed mold 1, a movable mold core 2, an injection molding machine ejector rod 3, injection molding machine push rod 4, the movable mould 5, cover half die cavity 9 and feed inlet 14, the one side that the movable mould 5 was kept away from to cover half 1 is connected with the pipeline of giving vent to anger of air pump 7, set up the gas outlet 8 of two symmetries on the pipeline of giving vent to anger of air pump 7, the intercommunication has trachea 10 on the gas outlet 8, the one end that gas outlet 8 was kept away from to trachea 10 and cover half die cavity 9 intercommunication, trachea 10 is close to the one end of gas outlet 8 and is provided with piston head 12, the one end of piston head 12 is connected with the piston rod 13 that is located trachea 10, the spout 11 looks sliding connection that slider 15 and trachea 10 inner wall were seted up is all passed through to the top and the bottom of piston rod 13.

Positioning columns 6 are arranged on four corners of one surface, close to the fixed mold 1, of the movable mold 5, and positioning grooves matched with the positioning columns 6 are formed in the fixed mold 1; the design has the advantages of achieving the purpose of positioning and facilitating mold closing operation.

The side surface of the air pipe 10 is L-shaped, the inner wall of the air pipe 10 close to one end of the fixed mould cavity 9 is a smooth inner wall, and the design prevents the water gap of the plastic product from being adhered to the inner wall of the air pipe 10 and also facilitates the sliding of the piston head 12.

The piston head 12 is a metal head, and one side of the piston head 12 close to the fixed die cavity 9 is a smooth plane; this design prevents the piston head 12 from interfering with the injection molding of the molded article.

A limiting block is arranged at one end of the chute 11 close to the fixed die cavity 9; the design avoids the condition that the piston head 12 protrudes too much to cause slip, so that the piston head can just eject the plastic part product and demold.

The inner cavity of the piston rod 13 is of a hollow structure, and one end of the piston rod 13, which is far away from the piston head 12, is provided with a hole; the design facilitates the compressed air to push the piston rod 13 and the piston head 12, so that the piston head 12 can be pushed out smoothly.

The inner wall of the air pipe 10 is also provided with another group of limiting blocks close to the piston head 12; the design avoids the piston head 12 from excessively shrinking into the air pipe 10 in the injection molding process, and the quality of a plastic part product is influenced.

When using the utility model discloses the time:

the processes of die assembly, injection, cooling and die opening are skipped, and after the die opening is carried out, the ejector rod 3 of the injection molding machine is driven, so that the plastic part product on the movable die 5 is separated from the movable die core 2, and the demoulding operation on the movable die 5 is completed;

once the plastic product is adhered to the fixed mold cavity 9 in the fixed mold 1, a user can start the air pump 7, the air pump 7 injects high-pressure air into the air pipe 10 through the air outlet 8, certain buffering is generated through the L-shaped corner of the air pipe 10, damage to the tension spring 16 due to overlarge air flow is avoided, meanwhile, the air flow pushes the piston rod 13 and the piston head 12, so that the piston head 12 ejects the plastic product adhered to the fixed mold cavity 9 out and completes demolding, the tension spring 16 generates certain restoring force after being stretched, and the piston rod 13 and the piston head 12 which are horizontally pushed out are pulled back into the air pipe 10 by matching with the slide block 15 in the chute 11, so that the next mold molding operation is facilitated (a gap between the piston head 12 and the air pipe 10 may possibly cause the plastic product to appear, and the water gap can be removed only by grinding and cutting).

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides an injection mold is used in plastic products production, includes cover half (1), movable mould core (2), injection molding machine knock-out pole (3), injection molding machine push rod (4), movable mould (5), cover half die cavity (9) and feed inlet (14), its characterized in that: one surface of the fixed die (1) far away from the movable die (5) is connected with an air outlet pipeline of an air pump (7), two symmetrical air outlets (8) are arranged on the air outlet pipeline of the air pump (7), an air pipe (10) is communicated with the air outlet (8), one end of the air pipe (10) far away from the air outlet (8) is communicated with the fixed die cavity (9), a piston head (12) is arranged at one end of the air pipe (10) close to the air outlet (8), one end of the piston head (12) is connected with a piston rod (13) positioned in the air pipe (10), the top and the bottom of the piston rod (13) are connected with a sliding groove (11) arranged on the inner wall of the air pipe (10) in a sliding way through a sliding block (15), the piston rod (13) is sleeved with a tension spring (16), and one end, far away from the piston rod (13), of the tension spring (16) is fixedly connected with a hook (17) on the inner wall of the air pipe (10).

2. The injection mold for producing plastic articles according to claim 1, wherein: all be provided with reference column (6) on the one side four corners that movable mould (5) are close to cover half (1), set up the constant head tank with reference column (6) looks adaptation on cover half (1).

3. An injection mold for producing plastic products as claimed in claim 1, characterized in that the side of said air pipe (10) is L type structure, and the inner wall of said air pipe (10) near one end of said fixed mold cavity (9) is smooth.

4. The injection mold for producing plastic articles according to claim 1, wherein: the piston head (12) is a metal head, and one side of the piston head (12) close to the fixed die cavity (9) is a smooth plane.

5. The injection mold for producing plastic articles according to claim 1, wherein: and a limiting block is arranged at one end of the sliding groove (11) close to the fixed die cavity (9).

6. The injection mold for producing plastic articles according to claim 1, wherein: the inner cavity of the piston rod (13) is of a hollow structure, and one end, far away from the piston head (12), of the piston rod (13) is provided with a hole.

7. The injection mold for producing plastic articles according to claim 1, wherein: the inner wall of the air pipe (10) is also provided with another group of limiting blocks close to the piston head (12).