A gas-assisted molding device for injection molds

Abstract

The utility model discloses a kind of gas assisted forming devices of injection mould, it is related to plastic bucket injection moulding technical field, including sub-mold block and auxiliary assembly, the side of sub-mold block is equipped with positioning rod, and the middle part of sub-mold block is equipped with forming block, for the auxiliary forming blanking of the auxiliary assembly is set to the inside of forming block, and auxiliary assembly includes cooling cavity, liquid inlet pipe, liquid outlet pipe, partition pipe and gas pipe, the upper end of cooling cavity left side is connected with liquid inlet pipe, and the lower end of cooling cavity left side is equipped with liquid outlet pipe.This kind of gas assisted forming device of injection mould is cooled liquid inside sustained flow under the effect of cooling cavity in liquid inlet pipe and liquid outlet pipe, to melt glue liquid cooling promotes the forming of plastic bucket inside forming cavity, gas pipe transports stable airflow so that airflow enters to the inside of plastic bucket and forming block, the cooling forming of auxiliary plastic bucket, while increasing airflow intensity when opening mould blanking, the demoulding processing of auxiliary plastic bucket.

Description

Technical Field

[0001] This utility model relates to the field of plastic bucket injection molding technology, specifically a gas-assisted molding device for injection molds. Background Technology

[0002] A plastic bucket injection mold is a specialized tool used for the mass production of plastic buckets. It's a fixture that injects molten plastic raw material into a mold cavity, where it cools and solidifies to form a plastic bucket with a specific shape, size, and performance. Its core principle is to use the pressure of the injection molding machine to fill, cool, and demold the molten plastic within the mold, ultimately forming a plastic bucket product that meets the design requirements.

[0003] However, the existing gas-assisted molding devices for injection molds have poor mold cooling effects, which affects the molding of plastic buckets after gas output. Utility Model Content

[0004] The purpose of this invention is to provide a gas-assisted molding device for injection molds to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gas-assisted molding device for injection molds, comprising a sub-mold block and an auxiliary component. A positioning rod is installed on the side of the sub-mold block, and a molding block is installed in the middle of the sub-mold block. The auxiliary component for assisting molding and material feeding is disposed inside the molding block, and the auxiliary component includes a cooling chamber, a liquid inlet pipe, a liquid outlet pipe, a partition pipe, and a gas pipe. The upper end of the left side of the cooling chamber is connected to the liquid inlet pipe, and the lower end of the left side of the cooling chamber is installed with the liquid outlet pipe. A partition pipe is disposed in the middle of the cooling chamber, and a gas pipe is disposed inside the partition pipe.

[0006] Furthermore, the cooling cavity is annular in shape, and the cooling cavity and the partition tube are connected by a sleeve.

[0007] Furthermore, a connecting cavity is provided on the surface of the end side of the sub-mold block, and a mother mold block is provided on the right side of the sub-mold block.

[0008] Furthermore, the right end of the mother mold block is connected to a glue delivery pipe, and a molding cavity is opened inside the mother mold block.

[0009] Furthermore, a positioning hole is provided on the outer side of the left side surface of the mother mold block, and the positioning hole and the positioning rod correspond one-to-one.

[0010] Furthermore, the lower end of the sub-mold block is provided with a mold opening and closing assembly, and a base is provided below the opening and closing assembly.

[0011] Furthermore, the opening and closing assembly includes a fixed frame and a movable frame, and the movable frame is installed at the lower end of the fixed frame.

[0012] Furthermore, the opening and closing assembly also includes a guide rod and a hydraulic rod, with the guide rod slidably mounted on the lower end of the movable frame and the hydraulic rod mounted on the side of the fixed frame.

[0013] This utility model provides a gas-assisted molding device for injection molds, which has the following beneficial effects: 1. This utility model uses a cooling chamber with a continuous flow of coolant inside the inlet and outlet pipes to cool the molten adhesive and promote the molding of the plastic bucket inside the molding chamber. The air pipe delivers a stable airflow, allowing the airflow to enter the inner side of the plastic bucket and the molding block, assisting in the cooling and molding of the plastic bucket. At the same time, it increases the airflow intensity when the mold is opened and the material is unloaded, which assists in the demolding process of the plastic bucket. The partition pipe plays a role in spatial separation between the cooling chamber and the air pipe.

[0014] 2. This utility model uses positioning holes to align positioning rods to ensure the accuracy of mold closing for the sub-mold block and the mother mold block. The fixed frame supports and fixes the sub-mold block and the mother mold block respectively. The hydraulic rod controls the movement of the fixed frame by telescoping, that is, controls the opening and closing of the sub-mold block and the mother mold block. The guide rod enables the movable frame to move in a directional manner, increasing the stability of movement when the sub-mold block and the mother mold block open and close. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall right-side structure of a gas-assisted molding device for injection molds according to this utility model; Figure 2 This is a schematic diagram of the auxiliary component structure of a gas-assisted molding device for injection molds according to this utility model; Figure 3 This is a schematic diagram of the overall left side structure of a gas-assisted molding device for injection molds according to this utility model.

[0016] In the diagram: 1. Sub-mold block; 2. Positioning rod; 3. Molding block; 4. Auxiliary components; 401. Cooling chamber; 402. Liquid inlet pipe; 403. Liquid outlet pipe; 404. Divider pipe; 405. Air pipe; 5. Connecting cavity; 6. Mother mold block; 7. Adhesive delivery pipe; 8. Molding cavity; 9. Positioning hole; 10. Opening and closing components; 1001. Fixing frame; 1002. Movable frame; 1003. Guide rod; 1004. Hydraulic rod; 11. Base. Detailed Implementation

[0017] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0018] like Figure 1 and Figure 2As shown, a gas-assisted molding device for injection molds includes a sub-mold block 1 and an auxiliary component 4. A positioning rod 2 is installed on the side of the sub-mold block 1, and a molding block 3 is installed in the middle of the sub-mold block 1. The auxiliary component 4, used to assist in molding and unloading, is disposed inside the molding block 3. The auxiliary component 4 includes a cooling chamber 401, an inlet pipe 402, an outlet pipe 403, a partition pipe 404, and a gas pipe 405. The upper left end of the cooling chamber 401 is connected to the inlet pipe 402. Under the action of the inlet pipe 402 and the outlet pipe 403, coolant continuously flows inside the cooling chamber 401, cooling the molten plastic and promoting the molding of the plastic bucket inside the molding cavity 8. A liquid outlet pipe 403 is installed at the lower end of the left side. A partition pipe 404 is provided in the middle of the cooling chamber 401, and an air pipe 405 is provided inside the partition pipe 404. The air pipe 405 delivers a stable airflow so that the airflow enters the inside of the plastic bucket and the molding block 3, which helps the plastic bucket to cool down and form. At the same time, it increases the airflow intensity when the mold is opened and the material is unloaded, which helps the plastic bucket to be demolded. The cooling chamber 401 is annular in shape, and the cooling chamber 401 and the partition pipe 404 are connected by a sleeve. The partition pipe 404 plays a role in spatial separation between the cooling chamber 401 and the air pipe 405. A connecting cavity 5 is opened on the surface of the end side of the sub-mold block 1, and a mother mold block 6 is provided on the right side of the sub-mold block 1.

[0019] like Figure 3 As shown, the right end of the mother mold block 6 is connected to a glue delivery pipe 7, and a molding cavity 8 is opened inside the mother mold block 6. A positioning hole 9 is opened on the outer side of the left side surface of the mother mold block 6. The positioning hole 9 is aligned with the positioning rod 2 to ensure the accuracy of mold closing between the sub-mold block 1 and the mother mold block 6. The positioning hole 9 and the positioning rod 2 correspond one-to-one. The lower end of the sub-mold block 1 is provided with a mold opening and closing assembly 10, and a base 11 is provided below the opening and closing assembly 10. The opening and closing assembly 10 includes a fixed frame 1001 and a movable frame 1002, and the movable frame 1002 is installed at the lower end of the fixed frame 1001. The fixed frame 1001 provides support and fixation for the sub-mold block 1 and the mother mold block 6 respectively. The opening and closing assembly 10 also includes a guide rod 1003 and a hydraulic rod 1004. The guide rod 1003 is slidably installed at the lower end of the movable frame 1002. The guide rod 1003 enables the movable frame 1002 to move in a directional manner, increasing the stability of the movement when the sub-mold block 1 and the mother mold block 6 are opened and closed. The hydraulic rod 1004 is installed on the side of the fixed frame 1001. The hydraulic rod 1004 controls the movement of the fixed frame 1001 by telescoping, that is, controls the opening and closing of the sub-mold block 1 and the mother mold block 6.

[0020] In summary, the gas-assisted molding device for this injection mold firstly... Figures 1-3In the structure shown, during injection molding, the hydraulic rod 1004 extends to control the closing of the sub-mold block 1 and the mother mold block 6. The guide rod 1003 causes the movable frame 1002 to move in a specific direction, increasing the stability of the sub-mold block 1 and the mother mold block 6 when opening and closing. During mold closing, the positioning hole 9 and the positioning rod 2 correspond one-to-one to ensure the accuracy of mold closing. After mold closing, the glue delivery pipe 7 delivers the molten glue into the mold. Then, the cooling chamber 401 continuously flows with coolant under the action of the inlet pipe 402 and the outlet pipe 403, which cools the molten glue and promotes the molding of the plastic bucket inside the molding cavity 8. The air pipe 405 delivers a stable airflow, allowing the airflow to enter the inside of the plastic bucket and the molding block 3, assisting in the cooling and molding of the plastic bucket. When opening the mold and unloading the material, the airflow intensity output by the air pipe 405 is increased to assist in the demolding of the plastic bucket.

[0021] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A gas-assisted molding device for injection molds, comprising a sub-mold block (1) and auxiliary components (4), characterized in that, The sub-mold block (1) is equipped with a positioning rod (2) on its side and a forming block (3) is installed in the middle of the sub-mold block (1). The auxiliary component (4) for assisting in forming and feeding is located inside the forming block (3). The auxiliary component (4) includes a cooling chamber (401), an inlet pipe (402), an outlet pipe (403), a partition pipe (404), and an air pipe (405). The upper left end of the cooling chamber (401) is connected to the inlet pipe (402), and the lower left end of the cooling chamber (401) is equipped with the outlet pipe (403). The middle of the cooling chamber (401) is equipped with a partition pipe (404), and the interior of the partition pipe (404) is equipped with an air pipe (405).

2. The gas-assisted molding device for injection molds according to claim 1, characterized in that, The cooling chamber (401) is annular in shape, and the cooling chamber (401) and the partition tube (404) are connected by a sleeve.

3. The gas-assisted molding device for injection molds according to claim 1, characterized in that, The surface of the sub-mold block (1) is provided with a connecting cavity (5), and a mother mold block (6) is provided on the right side of the sub-mold block (1).

4. The gas-assisted molding device for injection molds according to claim 3, characterized in that, The right end of the mother mold block (6) is connected to the glue delivery pipe (7), and the inside of the mother mold block (6) is provided with a molding cavity (8).

5. The gas-assisted molding device for injection molds according to claim 3, characterized in that, The left side surface of the mother mold block (6) is provided with a positioning hole (9), and the positioning hole (9) and the positioning rod (2) correspond one to one.

6. The gas-assisted molding device for injection molds according to claim 1, characterized in that, The lower end of the sub-mold block (1) is provided with a mold opening and closing assembly (10), and a base (11) is provided below the opening and closing assembly (10).

7. The gas-assisted molding device for injection molds according to claim 6, characterized in that, The opening and closing component (10) includes a fixed frame (1001) and a movable frame (1002), and the movable frame (1002) is installed at the lower end of the fixed frame (1001).

8. The gas-assisted molding device for injection molds according to claim 7, characterized in that, The opening and closing assembly (10) also includes a guide rod (1003) and a hydraulic rod (1004). The guide rod (1003) is slidably installed at the lower end of the movable frame (1002), and the hydraulic rod (1004) is installed on the side of the fixed frame (1001).

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