Plastic product injection molding device

By designing an automatic closed discharge port and quickly changing molds in the injection molding device, the problems of excessive discharge and production of single-size products are solved, and the product quality and practicality of the device are improved.

CN222768855UActive Publication Date: 2025-04-18KUNMING ZHISHENG NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202420386836.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-29
Publication Date
2025-04-18
Estimated Expiration
2034-02-28

AI Technical Summary

Technical Problem

The valve control of the discharge port of the existing injection molding device is inflexible, resulting in excessive discharge and affecting product quality; at the same time, the injection molding device is fixedly connected to the mold, making it impossible to produce plastic lunch boxes of different sizes, which reduces the practicality of the device.

Method used

An injection molding device including a support frame, an injection molding device body, a control panel and an electric valve is designed. By setting up components such as rotating blocks, handles, rotating rods, baffles, magnets, etc., the discharge port is automatically closed, and the injection mold is quickly replaced through hydraulic cylinders and electric telescopic rods.

Benefits of technology

It effectively reduces the problem of excessive discharge, improves product quality and equipment error tolerance; at the same time, it realizes the production of plastic lunch boxes of different sizes, and improves the practicality of injection molding devices.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plastic meal boxes, in particular to a plastic product injection molding device which comprises a supporting frame, an injection molding device body, a control panel and an electric valve, a first supporting plate is fixedly connected to the upper end of the supporting frame, a supporting rod is fixedly connected to the upper end of the first supporting plate, and a second supporting plate is fixedly connected to the inner side of the supporting rod. According to the injection molding device, the rotating block, the handle, the rotating rod, the baffle, the first magnet and the second magnet are arranged, in the injection molding process, when a control panel breaks down and cannot control an electric valve to be closed, the handle is rotated, and the handle drives the baffle to rotate through the rotating block and the rotating rod; the upper end surface of the baffle is attached to the lower end surface of the discharging port, then through magnetic attraction of the first magnet and the second magnet, the baffle is fixed to the lower end of the discharging port, the discharging port is closed, the situation that excessive discharging affects the product quality is reduced, follow-up work is facilitated, and the error-tolerant rate of using equipment is increased.
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Description

Technical Field

[0001] The utility model relates to the technical field of plastic lunch boxes, in particular to a plastic product injection molding device. Background Art

[0002] Plastic lunch boxes are plastic containers made of food-grade plastic for our convenience of taking out food. It is a very common household plastic product in our daily life and an indispensable plastic container for picnics or hiking. Plastic lunch boxes are available in a variety of styles and sizes. Square plastic lunch boxes can be used to store various seasonings, rectangular plastic lunch boxes are easy to store food with moisture, such as fruits, vegetables and seafood, and round plastic lunch boxes are suitable for storing sauces, sauces and various side dishes. When producing plastic lunch boxes on the market, an injection molding device is required to be combined with an injection mold to produce them. Plastic particles and other additives are added to the injection molding device. Under certain temperature and pressure conditions, it is injection molded into the required finished shape, and then cooled to keep its shape unchanged at room temperature.

[0003] The following problems are prone to occur when the injection molding device is used. First, in the prior art, the valves at the discharge port of the injection molding device are regulated by a control panel. When special circumstances occur, the control panel cannot control the valve to close, resulting in excessive discharge, affecting product quality, and affecting subsequent work, resulting in a low fault tolerance rate for the equipment. Second, the injection molding device and the injection mold are fixedly connected, and the size of the injection mold is fixed, so that the injection molding device can only produce plastic lunch boxes of one size, resulting in reduced practicality of the injection molding device. Therefore, in response to the above problems, we propose a plastic product injection molding device. Utility Model Content

[0004] The utility model aims to provide a plastic product injection molding device to solve the following problems: first, in the prior art, the valves at the discharge port of the injection molding device are regulated by a control panel, and when a special situation occurs, the control panel cannot control the valve to close, resulting in excessive discharge, affecting product quality, and affecting subsequent work, resulting in a low fault tolerance rate for the use of the equipment; second, the injection molding device and the injection mold are fixedly connected, and the size of the injection mold is fixed, so that the injection molding device can only produce plastic lunch boxes of one size, resulting in reduced practicability of the injection molding device.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A plastic product injection molding device comprises a support frame, an injection molding device body, a control panel and an electric valve, wherein the upper end of the support frame is fixedly connected to a first support plate, the upper end of the first support plate is fixedly connected to a support rod, the inner side of the support rod is fixedly connected to a second support plate, the inner side of the lower end of the second support plate is fixedly connected to a hydraulic cylinder, the lower end of the hydraulic cylinder is fixedly connected to the injection molding device body, the front end of the injection molding device body is fixedly connected to a control panel, the lower end of the injection molding device body is fixedly connected to a discharge port, the inner side of the discharge port is provided with an electric valve, and the right end of the discharge port is fixedly connected to a connecting component. A rotating block is rotatably connected to the inner side of the upper end of the connecting component, a handle is fixedly connected to the upper end of the rotating block, a rotating rod is fixedly connected to the lower end of the rotating block, a baffle is fixedly connected to the lower end of the rotating rod, a first magnet is fixedly connected to the inner side of the upper end of the baffle, a second magnet is fixedly connected to the inner side of the lower end of the discharge port, a lower mold is placed on the upper end of the first support plate, an upper mold is provided on the upper end of the lower mold, a connecting plate is fixedly connected to the upper end of the first support plate, an electric telescopic rod is fixedly connected to the left end of the connecting plate, a clamping plate is fixedly connected to the left end of the connecting component, and a material receiving port is opened on the inner side of the upper end of the upper mold.

[0007] Preferably, the cross-sectional shape of the support frame is an I-shape, the first support plate is a rectangle, and the number of the support rods is two.

[0008] Preferably, the injection molding device body is cylindrical in shape, the control panel and the electric valve are electrically connected, and the handle is T-shaped in shape.

[0009] Preferably, the upper end of the rotating rod passes through the connecting component, the outer side of the upper end of the rotating rod is rotatably connected with the connecting component, the rotating rod is cylindrical in shape, and the upper end surface of the baffle is in contact with the lower end surface of the discharge port.

[0010] Preferably, the first magnet is annular in shape, the first magnet and the second magnet are magnetically attracted to each other, the second magnet is annular in shape, the inner side of the clamping plate and the outer side of the lower mold fit tightly, and the upper end of the receiving port faces the discharging port.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, by arranging a rotating block, a handle, a rotating rod, a baffle, a first magnet and a second magnet, during the injection molding process, when the control panel fails and cannot control the electric valve to close, the handle is rotated, and the handle drives the baffle to rotate through the rotating block and the rotating rod, so that the upper surface of the baffle and the lower surface of the discharge port are fitted, and then the first magnet and the second magnet are magnetically attracted to each other, so that the baffle is fixed at the lower end of the discharge port, and the discharge port is closed, thereby reducing the impact of excessive discharge on product quality, facilitating subsequent work, and improving the fault tolerance of the equipment. By arranging a hydraulic cylinder, a connecting plate, an electric telescopic rod and a clamping plate, the hydraulic cylinder is started. The cylinder and the hydraulic cylinder drive the injection molding device body to move upward, so that the discharge port is away from the receiving port opened on the inner side of the upper end of the upper mold, and the electric telescopic rod is started, and the electric telescopic rod drives the clamping plate to move outward, and the upper mold and the lower mold are removed, and injection molds of different sizes are replaced. After replacement, the electric telescopic rod is started, and the electric telescopic rod drives the clamping plate to move inward, so that the clamping plate clamps and fixes the new mold, and then the hydraulic cylinder is started, and the hydraulic cylinder drives the injection molding device body to move downward, so that the lower end of the discharge port is facing the receiving port of the new mold, and then the injection molding device can produce plastic lunch boxes of different sizes, thereby improving the practicality of the injection molding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at A;

[0015] Figure 3 For this utility model Figure 1 Schematic diagram of the structure at point B.

[0016] In the figure: 1. support frame; 2. first support plate; 3. support rod; 4. second support plate; 5. hydraulic cylinder; 6. injection molding device body; 7. control panel; 8. discharge port; 9. electric valve; 10. connecting assembly; 11. rotating block; 12. handle; 13. rotating rod; 14. baffle; 15. first magnet; 16. second magnet; 17. lower mold; 18. upper mold; 19. connecting plate; 20. electric telescopic rod; 21. clamping plate; 22. receiving port. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3 , the utility model provides a technical solution:

[0019] A plastic product injection molding device, comprising a support frame 1, an injection molding device body 6, a control panel 7 and an electric valve 9, wherein the upper end of the support frame 1 is fixedly connected to a first support plate 2, the upper end of the first support plate 2 is fixedly connected to a support rod 3, the inner side of the support rod 3 is fixedly connected to a second support plate 4, the inner side of the lower end of the second support plate 4 is fixedly connected to a hydraulic cylinder 5, the lower end of the hydraulic cylinder 5 is fixedly connected to an injection molding device body 6, the front end of the injection molding device body 6 is fixedly connected to a control panel 7, the lower end of the injection molding device body 6 is fixedly connected to a discharge port 8, the inner side of the discharge port 8 is provided with an electric valve 9, the right end of the discharge port 8 is fixedly connected to a connecting component 10, the upper end of the connecting component 10 is fixedly connected to the inner side of the connecting component 10, and the inner side of the connecting component 10 is fixedly connected to the inner side of the connecting component 10. The side is rotatably connected with a rotating block 11, the upper end of the rotating block 11 is fixedly connected with a handle 12, the lower end of the rotating block 11 is fixedly connected with a rotating rod 13, the lower end of the rotating rod 13 is fixedly connected with a baffle 14, the inner side of the upper end of the baffle 14 is fixedly connected with a first magnet 15, the inner side of the lower end of the discharge port 8 is fixedly connected with a second magnet 16, a lower mold 17 is placed on the upper end of the first support plate 2, an upper mold 18 is provided on the upper end of the lower mold 17, a connecting plate 19 is fixedly connected to the upper end of the first support plate 2, an electric telescopic rod 20 is fixedly connected to the left end of the connecting plate 19, a clamping plate 21 is fixedly connected to the left end of the connecting assembly 10, and a material receiving port 22 is provided on the inner side of the upper end of the upper mold 18.

[0020] The cross-sectional shape of the support frame 1 is an "I" shape, the first support plate 2 is a rectangle, the number of support rods 3 is two, the shape of the injection molding device body 6 is a cylinder, the control panel 7 is electrically connected to the electric valve 9, the handle 12 is "T"-shaped, the upper end of the rotating rod 13 passes through the connecting assembly 10, the outer side of the upper end of the rotating rod 13 is rotatably connected to the connecting assembly 10, the rotating rod 13 is cylindrical in shape, the upper end surface of the baffle 14 is in contact with the lower end surface of the discharge port 8, the first magnet 15 is in an annular shape, the first magnet 15 and the second magnet 16 are magnetically attracted to each other, the second magnet 16 is in an annular shape, the inner side of the clamping plate 21 is tightly fitted with the outer side of the lower mold 17, the upper end of the material receiving port 22 is directly opposite to the discharge port 8, the upper end of the support frame 1 is fixedly connected to the first support plate 2, the upper end of the first support plate 2 is fixedly connected to the support rod 3, the inner side of the support rod 3 is fixedly connected to the second support plate 4, the inner side of the lower end of the second support plate 4 is fixedly connected to the hydraulic cylinder 5, and the lower The end is fixedly connected with the injection molding device body 6, the front end of the injection molding device body 6 is fixedly connected with the control panel 7, the lower end of the injection molding device body 6 is fixedly connected with the discharge port 8, the inner side of the discharge port 8 is provided with an electric valve 9, the right end of the discharge port 8 is fixedly connected with a connecting component 10, and the inner side of the upper end of the connecting component 10 is rotatably connected with a rotating block 11, so as to facilitate the arrangement of the rotating block 11, the handle 12, the rotating rod 13, the baffle 14, the first magnet 15 and the second magnet 16. During the injection molding process, when the control panel 7 fails and cannot control the closing of the electric valve 9, the handle 12 is rotated, and the handle 12 drives the baffle 14 to rotate through the rotating block 11 and the rotating rod 13, so that the upper end surface of the baffle 14 fits with the lower end surface of the discharge port 8, and then the first magnet 15 and the second magnet 16 are magnetically attracted to each other, so that the baffle 14 is fixed to the lower end of the discharge port 8, and the discharge port 8 is closed, so as to reduce the impact of excessive discharge on product quality, facilitate subsequent work, and improve the fault tolerance of the equipment;The upper end of the rotating block 11 is fixedly connected to a handle 12, the lower end of the rotating block 11 is fixedly connected to a rotating rod 13, the lower end of the rotating rod 13 is fixedly connected to a baffle 14, the inner side of the upper end of the baffle 14 is fixedly connected to a first magnet 15, the inner side of the lower end of the discharge port 8 is fixedly connected to a second magnet 16, a lower mold 17 is placed on the upper end of the first support plate 2, an upper mold 18 is arranged on the upper end of the lower mold 17, and a connecting plate 19 is fixedly connected to the upper end of the first support plate 2, so that the hydraulic cylinder 5, the connecting plate 19, the electric telescopic rod 20 and the clamping plate 21 are conveniently arranged, the hydraulic cylinder 5 is started, and the hydraulic cylinder 5 drives the injection molding device body 6 to move upward, so that the discharge port 8 is away from the receiving port 22 opened on the inner side of the upper end of the upper mold 18, and the electric telescopic rod 2 is started. 0, the electric telescopic rod 20 drives the clamping plate 21 to move outward, remove the upper mold 18 and the lower mold 17, and replace the injection molds of different sizes. After replacement, start the electric telescopic rod 20, the electric telescopic rod 20 drives the clamping plate 21 to move inward, so that the clamping plate 21 clamps and fixes the new mold, and then start the hydraulic cylinder 5, the hydraulic cylinder 5 drives the injection molding device body 6 to move downward, so that the lower end of the discharge port 8 is directly opposite to the new mold receiving port 22, and then the injection molding device can produce plastic lunch boxes of different sizes, thereby improving the practicality of the injection molding device; the left end of the connecting plate 19 is fixedly connected to the electric telescopic rod 20, the left end of the connecting assembly 10 is fixedly connected to the clamping plate 21, and the upper end of the upper mold 18 is provided with a receiving port 22. ;

[0021] Working process: when the device is in use, it is powered by an external power supply, the upper end of the support frame 1 is fixedly connected to the first support plate 2, the upper end of the first support plate 2 is fixedly connected to the support rod 3, the inner side of the support rod 3 is fixedly connected to the second support plate 4, the inner side of the lower end of the second support plate 4 is fixedly connected to the hydraulic cylinder 5, the lower end of the hydraulic cylinder 5 is fixedly connected to the injection molding device body 6, the front end of the injection molding device body 6 is fixedly connected to the control panel 7, the lower end of the control panel 7 is fixedly connected to the discharge port 8, the inner side of the discharge port 8 is provided with an electric valve 9, the electric valve 9 and the control panel 7 are electrically connected, the electric valve 9 controls the control panel 7 to open and close, when the control panel 7 fails and cannot control the electric valve 9 to close, the right end of the discharge port 8 is fixedly connected to the connecting component 10, the connection A rotating block 11 is rotatably connected to the inner side of the upper end of the component 10, a handle 12 is fixedly connected to the upper end of the rotating block 11, a rotating rod 13 is fixedly connected to the lower end of the rotating block 11, a baffle 14 is fixedly connected to the lower end of the rotating rod 13, a first magnet 15 is fixedly connected to the inner side of the upper end of the baffle 14, and a second magnet 16 is fixedly connected to the inner side of the lower end of the discharge port 8. When the handle 12 is rotated, the handle 12 drives the baffle 14 to rotate through the rotating block 11 and the rotating rod 13, so that the upper end surface of the baffle 14 and the lower end surface of the discharge port 8 fit together, and then the first magnet 15 and the second magnet 16 are magnetically attracted to each other, so that the baffle 14 is fixed to the lower end of the discharge port 8, and the discharge port 8 is closed, so as to reduce the impact of excessive discharge on product quality, facilitate subsequent work, and improve the use of the device. The tolerance of the equipment is improved. A lower mold 17 is placed on the upper end of the first support plate 2, and an upper mold 18 is arranged on the upper end of the lower mold 17. The upper mold 18 and the lower mold 17 are fixedly connected by bolts and nuts. A material receiving port 22 is opened on the upper end of the upper mold 18, and the lower end of the discharge port 8 is directly connected to the material receiving port 22, and then the lower mold 17 and the upper mold 18 are entered through the material receiving port 22 for injection molding. When the injection molding is completed, wait for the plastic lunch box to cool and form. After cooling and forming, remove the bolts and nuts to remove the formed plastic lunch box. The upper end of the first support plate 2 is fixedly connected to a connecting plate 19, and the left end of the connecting plate 19 is fixedly connected to an electric telescopic rod 20, and the left end of the electric telescopic rod 20 is fixedly connected to a clamping plate 21. When it is necessary to replace molds of different sizes , start the hydraulic cylinder 5, the hydraulic cylinder 5 drives the injection molding device body 6 to move upward, so that the discharge port 8 is away from the receiving port 22 opened on the inner side of the upper end of the upper mold 18, start the electric telescopic rod 20, the electric telescopic rod 20 drives the clamping plate 21 to move outward, remove the upper mold 18 and the lower mold 17, and replace the injection molds of different sizes. After replacement, start the electric telescopic rod 20, the electric telescopic rod 20 drives the clamping plate 21 to move inward, so that the clamping plate 21 clamps and fixes the new mold, and then start the hydraulic cylinder 5, the hydraulic cylinder 5 drives the injection molding device body 6 to move downward, so that the lower end of the discharge port 8 is facing the receiving port 22 of the new mold, so that the injection molding device can produce plastic lunch boxes of different sizes, thereby improving the practicality of the injection molding device.

[0022] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic product injection molding device, comprising a support frame (1), an injection molding device body (6), a control panel (7) and an electric valve (9), characterized in that: The upper end of the support frame (1) is fixedly connected to a first support plate (2), the upper end of the first support plate (2) is fixedly connected to a support rod (3), the inner side of the support rod (3) is fixedly connected to a second support plate (4), the inner side of the lower end of the second support plate (4) is fixedly connected to a hydraulic cylinder (5), the lower end of the hydraulic cylinder (5) is fixedly connected to an injection molding device body (6), the front end of the injection molding device body (6) is fixedly connected to a control panel (7), the lower end of the injection molding device body (6) is fixedly connected to a discharge port (8), the inner side of the discharge port (8) is provided with an electric valve (9), the right end of the discharge port (8) is fixedly connected to a connecting assembly (10), the inner side of the upper end of the connecting assembly (10) is rotatably connected to a rotating block (11), the rotating block (11) A handle (12) is fixedly connected to the upper end, a rotating rod (13) is fixedly connected to the lower end of the rotating block (11), a baffle (14) is fixedly connected to the lower end of the rotating rod (13), a first magnet (15) is fixedly connected to the inner side of the upper end of the baffle (14), a second magnet (16) is fixedly connected to the inner side of the lower end of the discharge port (8), a lower mold (17) is placed on the upper end of the first support plate (2), an upper mold (18) is provided on the upper end of the lower mold (17), a connecting plate (19) is fixedly connected to the upper end of the first support plate (2), an electric telescopic rod (20) is fixedly connected to the left end of the connecting plate (19), a clamping plate (21) is fixedly connected to the left end of the connecting assembly (10), and a material receiving port (22) is provided on the inner side of the upper end of the upper mold (18).

2. A plastic product injection molding device according to claim 1, characterized in that: The cross-sectional shape of the support frame (1) is an "I" shape, the first support plate (2) is a rectangular shape, and the number of the support rods (3) is two.

3. A plastic product injection molding device according to claim 1, characterized in that: The injection molding device body (6) is cylindrical in shape, the control panel (7) and the electric valve (9) are electrically connected, and the handle (12) is T-shaped in shape.

4. A plastic product injection molding device according to claim 1, characterized in that: The upper end of the rotating rod (13) passes through the connecting assembly (10), and the outer side of the upper end of the rotating rod (13) is rotatably connected to the connecting assembly (10). The rotating rod (13) is cylindrical in shape, and the upper end surface of the baffle (14) is in contact with the lower end surface of the discharge port (8).

5. A plastic product injection molding device according to claim 1, characterized in that: The first magnet (15) is annular in shape, the first magnet (15) and the second magnet (16) are magnetically attracted to each other, the second magnet (16) is annular in shape, the inner side of the clamping plate (21) and the outer side of the lower mold (17) are tightly fitted, and the upper end of the receiving port (22) is directly opposite to the discharging port (8).