Feeding device for injection molding machine

By designing a feeding device for injection molding machines, a metering cylinder is moved by an electric push rod to achieve quantitative feeding, solving the problem of inconvenient feeding of injection molding machines and realizing quantitative feeding of materials in the cylinder and simple operation.

CN224197204UActive Publication Date: 2026-05-05HEYUAN JUNKAI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEYUAN JUNKAI TECH CO LTD
Filing Date
2025-04-23
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

In the current injection molding machine feeding process, it is difficult to achieve quantitative feeding, resulting in excessive or insufficient feeding, and manual operation is laborious and inconvenient.

Method used

Design a feeding device that includes a fixed cylinder, a storage component, a quantitative feeding mechanism, and a driving component. The quantitative cylinder is driven to move by an electric push rod to achieve quantitative feeding and ensure that the material in the injection molding machine barrel reaches the set capacity.

Benefits of technology

It enables quantitative feeding of materials in the injection molding machine barrel, avoiding overfeeding or underfeeding and reducing the labor intensity of manual operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a feeding device for an injection molding machine, and relates to the technical field of injection molding machines, the feeding device comprises a mounting part, the mounting part comprises a fixed cylinder, the fixed cylinder is used as a basic mounting carrier of the device and is used for fixing and supporting other parts, and a plurality of supporting legs are fixed on the bottom surface of the fixed cylinder. According to the feeding device for the injection molding machine, materials stored in the storage hopper can flow into the quantitative barrel through the communicating box, when the charging barrel of the injection molding machine needs to be fed, the quantitative barrel and the feeding opening are pushed by the electric push rod to move in the fixed barrel, and then the bottom of the quantitative barrel gradually gets close to the discharging hopper; when the bottom of the communicating box is sealed by the material control plate, the bottom of the quantitative barrel and the discharging hopper are in a communicating state, and the materials in the quantitative barrel flow out through the discharging hopper, so that quantitative discharging is realized, the materials in the charging barrel of the injection molding machine reach a set volume, and excessive or insufficient charging is avoided.
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Description

Technical Field

[0001] This utility model relates to a feeding device, specifically a feeding device for an injection molding machine, and belongs to the field of injection molding machine technology. Background Technology

[0002] An injection molding machine is a device that melts materials such as plastic by heating them, and then injects them into a mold cavity under high pressure to achieve molding. Its structure mainly consists of an injection unit, a heating component, a mold mechanism, and a control unit.

[0003] During the injection molding process, plastic granules need to be melted in a high-temperature environment and injected into the mold under pressure. Therefore, a continuous supply of materials is necessary to ensure that the equipment has sufficient raw materials to maintain continuous molding operations and thus complete the production of plastic products.

[0004] In existing technologies, material feeding is often done manually. Manual feeding typically requires the operator to manually pour plastic granules from the raw material bag into the injection molding machine's barrel. Since the barrel is usually quite tall, the operator needs to climb to reach it, which is laborious. While a screw conveyor can be used for feeding, it's difficult to determine whether the material in the injection molding machine's barrel has reached the set capacity using a screw conveyor. Therefore, this paper proposes a feeding device for injection molding machines. Utility Model Content

[0005] This invention proposes a feeding device for injection molding machines, which can quantitatively feed material to ensure that the material in the injection molding machine barrel reaches the set capacity, thus avoiding overfeeding or underfeeding.

[0006] This utility model is achieved through the following technical solution: a feeding device for an injection molding machine, including an installation component, the installation component including a fixed cylinder, the fixed cylinder serving as the basic installation carrier of the device, used to fix and support other components, the bottom surface of the fixed cylinder having multiple support legs fixed thereon, the support legs being used to support the entire device, the bottom surface of the fixed cylinder having a discharge hopper, the discharge hopper serving as the end component for material output, receiving the material discharged from the metering cylinder, and guiding the material to be concentratedly transported into the injection molding machine barrel.

[0007] It also includes a storage component, which is mounted on the mounting component. The storage component includes a storage hopper and a connecting box. The connecting box is connected to the storage hopper and to the fixed cylinder. The connecting box is used to temporarily store materials, providing a certain volume of storage space and reducing the frequency of adding materials to the storage hopper. The connecting box is used to connect the storage hopper and the fixed cylinder.

[0008] It also includes a quantitative feeding mechanism, which is mounted on the mounting component. The quantitative feeding mechanism includes a control plate and a metering cylinder, which are mounted on the mounting component. The control plate has a feeding port. The quantitative feeding mechanism also includes a reinforcing plate, which is fixed between the metering cylinder and the control plate. There are two reinforcing plates.

[0009] The metering cylinder is fixed with a guide post, and the metering feeding mechanism also includes a guide groove formed on the fixed cylinder. The guide post is slidably connected to the fixed cylinder through the guide groove. When the metering cylinder moves, it will also drive the guide post to move on the guide groove, thus playing a guiding role through the guide post and the guide groove.

[0010] The quantitative feeding mechanism also includes a driving component, which is mounted on the mounting component. The driving component is used to drive the quantitative cylinder to move. The driving component includes a mounting plate and an electric push rod. The mounting plate is fixed on the fixed cylinder, and the electric push rod is mounted on the mounting plate. When the electric push rod is started, the output end of the electric push rod will drive the quantitative cylinder to move.

[0011] A guide rod is fixed on the metering cylinder, and a guide hole is provided on the mounting plate. The guide rod is slidably connected to the mounting plate through the guide hole. When the metering cylinder moves, it will also drive the guide rod to move on the guide hole, thus playing a guiding role through the guide rod and the guide hole.

[0012] This utility model provides a feeding device for an injection molding machine, which has the following beneficial effects:

[0013] 1. The material stored inside the hopper of the feeding device for injection molding machines can flow into the metering cylinder through the connecting box. When it is necessary to feed the injection molding machine cylinder, the metering cylinder and the feeding port are moved in the fixed cylinder by the electric push rod. This causes the bottom of the metering cylinder to gradually approach the discharge hopper, while the feeding port gradually moves away from the bottom of the connecting box. When the bottom of the connecting box is sealed by the material control plate, the bottom of the metering cylinder and the discharge hopper are in a connected state. The material in the metering cylinder flows out through the discharge hopper, thereby realizing quantitative feeding and ensuring that the material in the injection molding machine cylinder reaches the set capacity, avoiding overfeeding or underfeeding. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0016] Figure 3 This is a cross-sectional view of the internal structure of the fixed cylinder of this utility model;

[0017] Figure 4 This is a schematic diagram of the material control plate and metering cylinder structure of this utility model.

[0018] Explanation of reference numerals in the attached figures

[0019] 1. Mounting components; 101. Fixing cylinder; 102. Support leg; 103. Discharge hopper;

[0020] 2. Storage components; 201. Storage hopper; 202. Connecting box;

[0021] 3. Quantitative feeding mechanism; 301. Control plate; 302. Quantitative cylinder; 303. Feeding port; 304. Reinforcing plate; 305. Mounting plate; 306. Electric push rod; 307. Guide rod; 308. Guide hole; 309. Guide groove; 310. Guide column. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0023] Please see Figures 1-4 The present invention proposes the following implementation scheme: a feeding device for an injection molding machine, including a mounting component 1, the mounting component 1 including a fixing cylinder 101, the fixing cylinder 101 serving as the basic mounting carrier of the device, used to fix and support other components, and a plurality of support legs 102 fixed on the bottom surface of the fixing cylinder 101.

[0024] Please refer to this carefully. Figure 1 and Figure 2 The support leg 102 is used to support the entire device. The bottom surface of the fixed cylinder 101 is provided with a discharge hopper 103. The discharge hopper 103 serves as the end component for material output, receiving the material discharged from the metering cylinder 302 and guiding the material to be concentrated and transported into the injection molding machine barrel.

[0025] Please refer to this carefully. Figure 1 and Figure 2 It also includes a storage component 2, which is mounted on the mounting component 1. The storage component 2 includes a storage hopper 201 and a connecting box 202. The connecting box 202 is connected to the storage hopper 201 and to the fixed cylinder 101.

[0026] The connecting box 202 is used to temporarily store materials, providing a certain volume of storage space and reducing the frequency of adding materials to the storage hopper 201. The connecting box 202 is used to connect the storage hopper 201 and the fixed cylinder 101.

[0027] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4 It also includes a quantitative feeding mechanism 3, which is mounted on the mounting component 1. The quantitative feeding mechanism 3 includes a control plate 301 and a metering cylinder 302. The control plate 301 and the metering cylinder 302 are mounted on the mounting component 1 and are slidably connected in a sealed manner within the fixed cylinder 101. The control plate 301 has a feeding port 303. The quantitative feeding mechanism 3 also includes a reinforcing plate 304, which is fixed between the metering cylinder 302 and the control plate 301. There are two reinforcing plates 304.

[0028] Please refer to this carefully. Figure 1 and Figure 4 The metering cylinder 302 is fixed with a guide column 310. The metering feeding mechanism 3 also includes a guide groove 309 opened on the fixed cylinder 101. The guide column 310 is slidably connected to the fixed cylinder 101 through the guide groove 309. When the metering cylinder 302 moves, it will also drive the guide column 310 to move on the guide groove 309. The guide column 310 and the guide groove 309 play a guiding role.

[0029] Please refer to this carefully. Figure 4 The quantitative feeding mechanism 3 also includes a driving component, which is mounted on the mounting component 1. The driving component is used to drive the quantitative cylinder 302 to move. The driving component includes a mounting plate 305 and an electric push rod 306. The mounting plate 305 is fixed on the fixed cylinder 101, and the electric push rod 306 is mounted on the mounting plate 305. When the electric push rod 306 is started, the output end of the electric push rod 306 will drive the quantitative cylinder 302 to move.

[0030] A guide rod 307 is fixed on the metering cylinder 302, and a guide hole 308 is provided on the mounting plate 305. The guide rod 307 is slidably connected to the mounting plate 305 through the guide hole 308. When the metering cylinder 302 moves, it will also drive the guide rod 307 to move on the guide hole 308. The guide rod 307 and the guide hole 308 play a guiding role.

[0031] Working principle: When feeding material, the electric push rod 306 is first activated, which pushes the metering cylinder 302 and the feeding port 303 to move within the fixed cylinder 101. The metering cylinder 302 will carry the material inside it within the fixed cylinder 101. During this process, the bottom of the metering cylinder 302 gradually approaches the discharge hopper 103, while the feeding port 303 gradually moves away from the bottom of the connecting box 202. When the bottom of the connecting box 202 is sealed by the control plate 301, the bottom of the metering cylinder 302 and the discharge hopper 103 are in a connected state. The material in the metering cylinder 302 flows out through the discharge hopper 103, thereby achieving quantitative feeding and ensuring that the material in the injection molding machine barrel reaches the set capacity, avoiding overfeeding or underfeeding.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A feeding device for an injection molding machine, comprising a mounting component (1), characterized in that: It also includes a storage component (2), which is disposed on the mounting component (1); It also includes a quantitative feeding mechanism (3), which is mounted on the mounting component (1); The quantitative feeding mechanism (3) includes a control plate (301) and a metering cylinder (302). The control plate (301) and the metering cylinder (302) are mounted on the mounting component (1). The control plate (301) has a feeding port (303). The quantitative feeding mechanism (3) also includes a driving component. The driving component is mounted on the mounting component (1) and is used to drive the metering cylinder (302) to move.

2. The feeding device for an injection molding machine according to claim 1, characterized in that: The mounting component (1) includes a fixed cylinder (101), a plurality of support legs (102) are fixed on the bottom surface of the fixed cylinder (101), and a discharge hopper (103) is provided on the bottom surface of the fixed cylinder (101).

3. The feeding device for an injection molding machine according to claim 1, characterized in that: The quantitative feeding mechanism (3) also includes a reinforcing plate (304), which is fixed between the quantitative cylinder (302) and the control plate (301), and there are two reinforcing plates (304).

4. A feeding device for an injection molding machine according to claim 1, characterized in that: The driving component includes a mounting plate (305) and an electric push rod (306). The mounting plate (305) is fixed on the fixed cylinder (101), and the electric push rod (306) is mounted on the mounting plate (305).

5. A feeding device for an injection molding machine according to claim 4, characterized in that: A guide rod (307) is fixed on the metering cylinder (302), and a guide hole (308) is provided on the mounting plate (305). The guide rod (307) is slidably connected to the mounting plate (305) through the guide hole (308).

6. A feeding device for an injection molding machine according to claim 1, characterized in that: The quantitative cylinder (302) is fixed with a guide post (310), and the quantitative feeding mechanism (3) also includes a guide groove (309) opened on the fixed cylinder (101). The guide post (310) is slidably connected to the fixed cylinder (101) through the guide groove (309).

7. A feeding device for an injection molding machine according to claim 1, characterized in that: The storage component (2) includes a storage hopper (201) and a connecting box (202), the connecting box (202) being connected to the storage hopper (201) and the connecting box (202) being connected to the fixed cylinder (101).