Plastic plug multi-cavity injection mold

By combining a multi-cavity injection mold with a motor-driven fan system, the problem of low production efficiency in traditional molds is solved, achieving high-efficiency production and automatic material handling.

CN224183598UActive Publication Date: 2026-05-01WUXI KAIYAN TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI KAIYAN TECHNOLOGY CO LTD
Filing Date
2025-05-15
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Traditional single-cavity injection molds cannot meet the needs of large-scale plastic plug production, and the material removal after molding consumes a lot of labor, resulting in low production efficiency.

Method used

The system employs a multi-cavity injection mold design, combined with a motor-driven fan system and a lead screw mechanism, to achieve efficient production and automatic material handling of plastic plugs in various specifications.

Benefits of technology

It enables efficient production of plastic plugs in various specifications, reduces labor demand, shortens the molding cycle, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a plastic plug multi-cavity injection mold, and relates to the technical field of plastic plug production. The top end of the base is fixedly provided with a lower multi-cavity mold, an upper multi-cavity mold is arranged above the lower multi-cavity mold, the top end of the base is fixedly provided with a supporting frame, the top end of the supporting frame is fixedly provided with injection molding equipment, the injection molding equipment is connected with the upper multi-cavity mold, one end of the supporting frame is fixedly provided with a first telescopic cylinder, and the other end of the supporting frame is fixedly provided with a second telescopic cylinder. The output end of the first telescopic cylinder is connected with the upper multi-cavity mold, an H-shaped frame is movably installed on one side of the top end of the base, and a double-end lead screw is rotationally installed on the inner side of the H-shaped frame. Through the cooperation of the lower multi-cavity mold, the upper multi-cavity mold, the first motor, the double-end lead screw, the moving rod, the sliding block, the fixing rod, the clamp, the second telescopic cylinder and the H-shaped frame, plastic plugs of different specifications and shapes can be conveniently produced at a time so as to meet the production requirement to facilitate material taking operation, labor force is saved, and the production efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of plastic plug manufacturing technology, specifically a multi-cavity injection mold for plastic plugs. Background Technology

[0002] The production of plastic plugs typically employs injection molding technology, a highly efficient and widely used process in plastic product manufacturing. However, with increasing demand and higher production efficiency requirements, traditional single-cavity injection molds are gradually becoming insufficient for large-scale production. Furthermore, the removal of molded plastic plugs is usually done manually, which is labor-intensive and does not optimize production efficiency. Therefore, we propose a multi-cavity injection mold for plastic plugs to address this problem. To solve the aforementioned issues, the inventors have proposed a multi-cavity injection mold for plastic plugs. Utility Model Content

[0003] To solve the above technical problems, the present invention adopts the following technical solution: a multi-cavity injection mold for plastic plugs, comprising a base, a lower multi-cavity mold fixedly installed at the top of the base, an upper multi-cavity mold arranged above the lower multi-cavity mold, a support frame fixedly installed at the top of the base, an injection molding device fixedly installed at the top of the support frame, the injection molding device being connected to the upper multi-cavity mold, a first telescopic cylinder fixedly installed at one end of the support frame, the output end of the first telescopic cylinder being connected to the upper multi-cavity mold, an H-shaped frame movably installed on one side of the top of the base, a double-ended lead screw rotatably installed on the inner side of the H-shaped frame, symmetrically distributed moving rods threaded on the outer side of the double-ended lead screw, a clamp fixedly connected to one end of each moving rod, a first motor fixedly installed on the outer side of the H-shaped frame, the drive end of the first motor being fixedly connected to one end of the double-ended lead screw, and symmetrically distributed second telescopic cylinders fixedly inserted into the top of the base, the output end of the second telescopic cylinders being fixedly connected to the bottom of the H-shaped frame.

[0004] Preferably, a support plate is fixedly installed on one side of the top surface of the base, and symmetrically distributed rotating columns are rotatably installed on one end of the support plate. A fan is fixedly connected to one end of each rotating column, and a belt is driven to the outside of the rotating column. A second motor is fixedly installed on the outside of the support plate, and one end of one of the rotating columns is fixedly connected to the drive end of the second motor. An air inlet is opened on the inner side of the lower multi-cavity mold.

[0005] Preferably, pulleys are fixedly fitted on the outer side of each rotating column, and the opposite end of each pulley is in movable contact with the belt.

[0006] Preferably, one end of the lower multi-cavity mold is fixedly equipped with symmetrically distributed air-guiding plates.

[0007] Preferably, the inner side of the H-shaped frame is fixedly fitted with a fixing rod, and the outer side of the fixing rod is slidably fitted with symmetrically distributed sliders, the top of the sliders being fixedly connected to the moving rod.

[0008] Preferably, symmetrically distributed L-shaped gaskets are fixedly installed on the lower outer side of the base.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. Through the cooperation of the lower multi-cavity mold, the upper multi-cavity mold, the first motor, the double-headed lead screw, the moving rod, the slider, the fixed rod, the clamp, the second telescopic cylinder, and the H-shaped frame, it is not only convenient to produce plastic plugs of different specifications and shapes at one time to meet production needs and facilitate material handling, but also saves labor and improves production efficiency.

[0011] 2. By starting the second motor to rotate the rotating column, and then using the belt to make the two rotating columns rotate synchronously, the fan is controlled to rotate. The fan rotation drives the airflow to enter the air inlet to help dissipate heat from the plastic plug in the multi-cavity mold, accelerate the cooling time, and shorten the molding cycle. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram showing the disassembled structure of the support frame of this utility model.

[0015] Figure 3 This is a schematic diagram showing the disassembled H-shaped frame structure of this utility model.

[0016] Figure 4 This is a cross-sectional schematic diagram of the multi-cavity mold structure of this utility model.

[0017] In the diagram: 1. Base; 11. Lower multi-cavity mold; 12. Upper multi-cavity mold; 13. Support frame; 14. Injection molding equipment; 15. First telescopic cylinder; 16. H-shaped frame; 17. Double-ended lead screw; 18. Moving rod; 19. Fixture; 20. First motor; 21. Second telescopic cylinder; 22. Support plate; 23. Rotating column; 24. Fan; 25. Belt; 26. Second motor; 27. Air inlet; 28. Pulley; 29. ​​Air guide plate; 30. Fixed rod; 31. Slider; 32. L-shaped washer. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example: Figure 1-4 As shown, this utility model provides a technical solution: a multi-cavity injection mold for plastic plugs, including a base 1, a lower multi-cavity mold 11 fixedly installed at the top of the base 1, an upper multi-cavity mold 12 arranged above the lower multi-cavity mold 11, a support frame 13 fixedly installed at the top of the base 1, an injection molding device 14 fixedly installed at the top of the support frame 13, the injection molding device 14 being connected to the upper multi-cavity mold 12, a first telescopic cylinder 15 fixedly installed at one end of the support frame 13, and the output end of the first telescopic cylinder 15 being connected to the upper multi-cavity mold 12. An H-shaped frame 16 is movably mounted on one side of the top of the base 1. A double-ended lead screw 17 is rotatably mounted on the inner side of the H-shaped frame 16. Symmetrically distributed moving rods 18 are threaded on the outer side of the double-ended lead screw 17. A clamp 19 is fixedly connected to one end of each moving rod 18. A first motor 20 is fixedly mounted on the outer side of the H-shaped frame 16. The drive end of the first motor 20 is fixedly connected to one end of the double-ended lead screw 17. Symmetrically distributed second telescopic cylinders 21 are fixedly inserted into the top of the base 1. The output end of the second telescopic cylinder 21 is fixedly connected to the bottom of the H-shaped frame 16.

[0020] A support plate 22 is fixedly installed on one side of the top surface of the base 1. A symmetrically distributed rotating column 23 is rotatably installed on one end of the support plate 22. A fan 24 is fixedly connected to one end of each rotating column 23. A belt 25 is driven to the outside of the rotating column 23. A second motor 26 is fixedly installed on the outside of the support plate 22. One end of one of the rotating columns 23 is fixedly connected to the drive end of the second motor 26. An air inlet 27 is opened on the inner side of the lower multi-cavity mold 11.

[0021] By adopting the above technical solution, the second motor 26 is started to rotate the rotating column 23, and the two rotating columns 23 are rotated synchronously by the belt 25 to control the rotation of the fan 24. The rotation of the fan 24 drives the airflow to enter the air inlet 27 to help the plastic plug in the multi-cavity mold 11 dissipate heat, accelerate the cooling time, and shorten the molding cycle.

[0022] Each of the rotating columns 23 is fixedly fitted with a pulley 28, and the opposite end of the pulley 28 is in contact with the belt 25.

[0023] By adopting the above technical solution, the pulley 28 is set to help the belt 25 perform limit control.

[0024] A symmetrically distributed air-guiding plates 29 are fixedly installed at one end of the lower multi-cavity mold 11.

[0025] By adopting the above technical solution, the airflow is assisted by setting the air-guiding plate 29.

[0026] The inner side of the H-shaped frame 16 is fixed with a fixing rod 30, and the outer side of the fixing rod 30 is slidably sleeved with symmetrically distributed sliders 31. The top of the sliders 31 is fixedly connected to the moving rod 18.

[0027] By adopting the above technical solution, the sliding block 31 is set to slide on the fixed rod 30 to help guide and control the moving rod 18.

[0028] A symmetrically distributed L-shaped gasket 32 ​​is fixedly installed on the lower outer side of the base 1.

[0029] By adopting the above technical solution, the support stability of the base 1 is improved by setting L-shaped gaskets 32.

[0030] Working principle: First, the first telescopic cylinder 15 is activated to push the upper multi-cavity mold 12 downward. After the upper multi-cavity mold 12 connects with the lower multi-cavity mold 11, the injection molding equipment 14 is turned on for injection molding. Thanks to the multi-cavity structure of the lower multi-cavity mold 11 and the upper multi-cavity mold 12, it is convenient to produce plastic plugs of different specifications and shapes in one go to meet production needs. After injection molding is completed, the second motor 26 is activated to rotate the rotating column 23. Then, the belt 25 causes the two rotating columns 23 to rotate synchronously to control the fan 24 to rotate. The rotation of the fan 24 drives the airflow to enter the air inlet 27 to assist the lower multi-cavity mold 11. The plastic plugs in the cavity mold 11 dissipate heat, accelerate the cooling time, and shorten the molding cycle. After the plastic plugs have cooled completely, the first motor 20 is randomly started to control the rotation of the double-ended lead screw 17. The rotation of the double-ended lead screw 17 drives the moving rods 18 to move relative to each other. The slider 31 slides on the fixed rod 30 to help guide the moving rods 18. The moving rods 18 then drive the clamps 19 to move relative to each other. The clamps 19 then clamp multiple plastic plugs. In conjunction with the second telescopic cylinder 21, the H-shaped frame 16 is pushed upward, and the plastic plugs are pulled out, which facilitates the material handling operation, saves labor, and improves production efficiency.

[0031] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A multi-cavity injection mold for plastic plugs, comprising a base (1), characterized in that: A lower multi-cavity mold (11) is fixedly installed at the top of the base (1), and an upper multi-cavity mold (12) is provided above the lower multi-cavity mold (11). A support frame (13) is fixedly installed at the top of the base (1), and an injection molding device (14) is fixedly installed at the top of the support frame (13). The injection molding device (14) is connected to the upper multi-cavity mold (12). A first telescopic cylinder (15) is fixedly installed at one end of the support frame (13), and the output end of the first telescopic cylinder (15) is connected to the upper multi-cavity mold (12). An H-shaped frame (16) is movably installed on one side of the top of the base (1). The H-shaped frame (16) is rotatably mounted with a double-ended lead screw (17) on its inner side. The outer side of the double-ended lead screw (17) is threaded with symmetrically distributed moving rods (18). One end of each moving rod (18) is fixedly connected to a clamp (19). The outer side of the H-shaped frame (16) is fixedly mounted with a first motor (20). The driving end of the first motor (20) is fixedly connected to one end of the double-ended lead screw (17). The top of the base (1) is fixedly inserted with symmetrically distributed second telescopic cylinders (21). The output end of the second telescopic cylinders (21) is fixedly connected to the bottom of the H-shaped frame (16).

2. The multi-cavity injection mold for a plastic plug as described in claim 1, characterized in that, A support plate (22) is fixedly installed on one side of the top surface of the base (1). A symmetrically distributed rotating column (23) is rotatably installed on one end of the support plate (22). A fan (24) is fixedly connected to one end of each rotating column (23). A belt (25) is driven to the outside of the rotating column (23). A second motor (26) is fixedly installed on the outside of the support plate (22). One end of one of the rotating columns (23) is fixedly connected to the drive end of the second motor (26). An air inlet (27) is opened on the inner side of the lower multi-cavity mold (11).

3. The multi-cavity injection mold for a plastic plug as described in claim 2, characterized in that, Each of the rotating columns (23) is fixedly fitted with a pulley (28), and the opposite end of the pulley (28) is in contact with the belt (25).

4. The multi-cavity injection mold for a plastic plug as described in claim 1, characterized in that, One end of the lower multi-cavity mold (11) is fixedly equipped with symmetrically distributed air-guiding plates (29).

5. A multi-cavity injection mold for a plastic plug as described in claim 1, characterized in that, The H-shaped frame (16) has a fixing rod (30) fixed on its inner side. The fixing rod (30) has symmetrically distributed sliders (31) slidably sleeved on its outer side. The top of the sliders (31) is fixedly connected to the moving rod (18).

6. A multi-cavity injection mold for plastic plugs as described in claim 1, characterized in that, The lower outer side of the base (1) is fixedly installed with symmetrically distributed L-shaped gaskets (32).