CN211074491U - An injection mold with secondary injection function - Google Patents

Abstract

The utility model discloses an injection mold with the function of secondary injection, which relates to the field of injection molds. In view of the problem that the existing injection mold cannot be injected twice, the following scheme is proposed. There are two vertical rods, and the vertical rods are respectively arranged at both ends of the base, and the end of the vertical rods away from the base is connected by a horizontal plate. The base is provided with an upper mold and a lower mold, and the lower mold is fixedly installed on the surface of the base. , the upper mold is movably arranged on the surface of the lower mold, and the two sides are respectively fixed with push plates, a mold groove is opened between the upper mold and the lower mold, and a material cavity is opened in the upper mold, and the material cavity is arranged in above the mold slot. In the utility model, the diameter of the feeding pipe is larger than the diameter of the feeding pipe, so that the raw materials for secondary injection can enter the material cavity through the feeding pipe. The device has novel structure, unique design and reasonable structure, and is suitable for popularization.

Description

An injection mold with secondary injection function

technical field

The utility model relates to the field of injection moulds, in particular to an injection mould with the function of secondary injection.

Background technique

Injection mold is a tool for producing plastic products; it is also a tool for giving plastic products complete structure and precise dimensions. Injection molding is a processing method used in the mass production of some complex-shaped parts. Specifically, it refers to the injection of the heated and melted plastic into the cavity of the injection molding machine at high pressure, and after cooling and solidification, a molded product is obtained. Although the structure of the mold may vary due to the variety and performance of plastics, the shape and structure of plastic products, and the type of injection molding machine, the basic structure is the same.

The existing injection mold has only one injection port and cannot perform secondary injection. Therefore, we urgently need to propose an injection mold with secondary injection function to solve the above problems.

SUMMARY OF THE INVENTION

The utility model proposes an injection mold with the function of secondary injection, which solves the problem that the injection mold cannot be injected twice.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

An injection mold with a secondary injection molding function, comprising a base on which two vertical rods are vertically connected, and the vertical rods are respectively arranged at both ends of the base, and one end of the vertical rod away from the base is connected by a horizontal plate , the base is provided with an upper mold and a lower mold, and the lower mold is fixedly installed on the surface of the base, the upper mold is movably arranged on the surface of the lower mold, and a push plate is fixedly connected on both sides, the upper mold and the lower mold are fixedly connected. A mold groove is opened between the molds, a material cavity is opened in the upper mold, and the material cavity is arranged above the mold groove, the material cavity and the mold groove are communicated through the main feeding pipeline, and the two main feeding pipelines are connected. The side is respectively provided with a secondary feeding pipe, the secondary feeding pipe is arranged in parallel with the main feeding pipe, and communicates with the mold groove and the material cavity, the surface of the upper mold is connected with two feeding pipes, and the feeding pipe A feeding pipe is movably arranged in the second inner, and a feeding pipe is vertically arranged on the surface of the upper mold, and the feeding pipe is movable through the upper mold and inserted into the main feeding pipe.

Preferably, the first feeding tube is movably sleeved on the end of the feeding tube that is not inserted into the upper mold, and the outer side of the feeding tube is provided with a sealing ring, and the first end of the feeding tube is fixedly connected to the end away from the feeding tube There are pull plates.

Preferably, the upper mold is provided with a feeding pipe, and the feeding pipe is movable through the feeding pipe, the second feeding pipe is connected to the nozzle of the feeding pipe, and the diameter of the feeding pipe is larger than that of the feeding pipe. Orifice diameter of the feed tube.

Preferably, two ends of the pulling plate are respectively fixedly connected with pressing rods, and one end of the pressing rod can move through the upper mold and extend into the material cavity, and one end of the pressing rod inserted into the material cavity is fixedly connected with a sealing plug , and the sealing plug is arranged at the mouth of the secondary feeding pipeline.

Preferably, the horizontal plate and the push plates on both sides of the upper die are respectively connected by hydraulic rods.

Preferably, the upper mold and the transverse plate are movably connected by a limit rod.

The beneficial effects of the present utility model are:

1. In the present invention, the main feeding pipeline and the secondary feeding pipeline are arranged on the die groove, so that the device has the function of secondary feeding, and the secondary feeding and primary feeding pipelines are distinguished, more convenient;

2. In the present invention, the diameter of the feeding pipe is larger than the diameter of the feeding pipe, so that the raw materials for secondary injection can enter the material cavity through the feeding pipe. The device has novel structure, unique design and reasonable structure, and is suitable for popularization. .

Description of drawings

Figure 1 is a schematic structural diagram of the utility model.

FIG. 2 is an enlarged view of part A in FIG. 1 .

Labels in the figure: 1 base, 2 vertical rod, 3 horizontal plate, 4 lower mold, 5 upper mold, 6 hydraulic rod, 7 push plate, 8 mold groove, 9 pull plate, 10 feed pipe one, 11 feed pipe two , 12 pressure rods, 13 sealing plugs, 14 main feed pipes, 15 secondary feed pipes, 16 material chambers, 17 feed pipes.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

1-2, an injection mold with a secondary injection molding function includes a base 1, and two vertical rods 2 are vertically connected to the base 1, and the vertical rods 2 are respectively arranged on both ends of the base 1, and the vertical rods 2 One end away from the base 1 is connected by the horizontal plate 3, the base 1 is provided with an upper mold 5 and a lower mold 4, and the lower mold 4 is fixedly installed on the surface of the base 1, and the upper mold 5 is movably arranged on the surface of the lower mold 4, and both sides A push plate 7 is fixedly connected respectively, a mold groove 8 is opened between the upper mold 5 and the lower mold 4, and a material cavity 16 is opened in the upper mold 5, and the material cavity 16 is arranged above the mold groove 8, and the material cavity 16 is connected to the mold groove. 8 are communicated through the main feeding pipeline 14, and the two sides of the main feeding pipeline 14 are respectively provided with secondary feeding pipelines 15. The secondary feeding pipeline 15 is arranged in parallel with the main feeding pipeline 14, and communicates with the mold groove 8. With the material cavity 16, the surface of the upper mold 5 is connected with a feeding pipe two 11, and the feeding pipe two 11 is movably provided with a feeding pipe one 10, and the surface of the upper mold 5 is vertically provided with a feeding pipe 17, and the feeding pipe 17 is arranged vertically. The pipe 17 passes through the upper mold 5 and is inserted into the main feeding pipe 14. The feeding pipe 10 is movably sleeved on the end of the feeding pipe 17 that is not inserted into the upper mold 5, and the outer side of the feeding pipe 17 is provided with a A sealing ring, and the end of the feeding pipe 10 away from the feeding pipe 17 is fixedly connected with a pull plate 9, the upper mold 5 is provided with a feeding pipe, and the feeding pipe 17 moves through the feeding pipe, and the feeding pipe two 11 is connected to the mouth of the feeding pipe, the diameter of the feeding pipe is larger than the diameter of the mouth of the feeding pipe 17, the two ends of the pulling plate 9 are respectively fixedly connected with a pressure rod 12, and one end of the pressure rod 12 is movable through the upper The mold 5 extends into the material cavity 16, the end of the pressing rod 12 inserted into the material cavity 16 is fixedly connected with a sealing plug 13, and the sealing plug 13 is arranged at the nozzle of the secondary feeding pipe 15, and the horizontal plate 3 and the upper The push plates 7 on both sides of the mold 5 are connected by hydraulic rods 6 respectively, and the upper mold 5 and the horizontal plate 3 are movably connected by limit rods.

Working principle: When using this device, the hydraulic rod 6 is activated to adjust the position between the upper mold 5 and the lower mold 4. During the first injection, the pull plate 9 is pressed down, so that the sealing plug 13 enters the secondary feeding In the pipe 15, the feed pipe 1 10 passes through the surface of the pull plate 9, and then adds raw materials into the feed pipe 1 10, and then enters the main material pipe 14 through the feed pipe 17 to complete the first injection. For the second injection, pull the pull plate 9 upward, so that the first feeding pipe 10 is far away from the mouth of the second feeding pipe 11, and the pressing rod 12 drives the sealing plug 13 away from the mouth of the second feeding pipe 15, and moves toward the second feeding pipe 15. 11. Internal injection molding. Since the diameter of the feeding pipe is larger than the diameter of the feeding pipe 17, the injected raw material enters the material cavity 16 through the feeding pipe, and enters the mold groove 8 through the secondary feeding pipe 15 to complete the secondary injection. .

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (6)

1. An injection mold with a secondary injection molding function, comprising a base (1), characterized in that two vertical rods (2) are vertically connected on the base (1), and the vertical rods (2) are respectively arranged on The two ends of the base (1), the end of the vertical rod (2) away from the base (1) is connected by a horizontal plate (3), and the base (1) is provided with an upper mold (5) and a lower mold (4) ), and the lower mold (4) is fixedly installed on the surface of the base (1), the upper mold (5) is movably arranged on the surface of the lower mold (4), and push plates (7) are fixedly connected on both sides respectively. A mold groove (8) is opened between the upper mold (5) and the lower mold (4), and a material cavity (16) is opened in the upper mold (5), and the material cavity (16) is arranged at the bottom of the mold groove (8). Above, the material cavity (16) and the mold groove (8) are communicated through the main feeding pipe (14), and the two sides of the main feeding pipe (14) are respectively provided with secondary feeding pipes (15), The secondary feeding pipe (15) is arranged in parallel with the main feeding pipe (14), and communicates with the mold groove (8) and the material cavity (16), and the surface of the upper mold (5) is connected with a feeding pipe two (11), and the feeding pipe one (10) is movably arranged in the feeding pipe two (11), the surface of the upper mold (5) is vertically provided with a feeding pipe (17), and the feeding pipe (17) The movement passes through the upper die (5) and is inserted into the main feed pipe (14). 2. An injection mold with a secondary injection function according to claim 1, characterized in that the first (10) feeding pipe is movably sleeved on the feeding pipe (17) and is not inserted into the upper mold (5). ), and the outer side of the feeding pipe (17) is provided with a sealing ring, and one end of the feeding pipe (10) away from the feeding pipe (17) is fixedly connected with a pull plate (9). 3. An injection mold with a secondary injection molding function according to claim 1, characterized in that a feeding pipe is provided in the upper mold (5), and the feeding pipe (17) moves through the feeding The second feeding pipe (11) is connected to the mouth of the feeding pipe, and the diameter of the feeding pipe is larger than the diameter of the mouth of the feeding pipe (17). 4. An injection mold with a secondary injection molding function according to claim 2, characterized in that two ends of the pulling plate (9) are respectively fixedly connected with pressing rods (12), and the pressing rods (12) One end of the pressure rod (12) is fixedly connected with a sealing plug (13), and the sealing plug ( 13) Set at the nozzle of the secondary feeding pipeline (15). 5. An injection mold with a secondary injection function according to claim 1, characterized in that hydraulic pressure is passed between the horizontal plate (3) and the push plates (7) on both sides of the upper mold (5). Rod (6) connection. 6 . The injection mold with secondary injection molding function according to claim 1 , wherein the upper mold ( 5 ) and the transverse plate ( 3 ) are movably connected by a limit rod. 7 .

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