Quantitative feeding device of injection molding machine

Abstract

The utility model discloses a quantitative feeding device of an injection molding machine, which comprises a stirring hopper, a plurality of feeding holes are formed in the upper end of the stirring hopper in a penetrating manner, a support frame is fixedly connected to the upper end of the stirring hopper, a plurality of measuring cylinders are fixedly connected to the support frame, a mounting frame is fixedly connected to the upper surface of a fixing plate, and a first cylinder is fixedly connected to one side of the mounting frame; the output end of the first air cylinder is fixedly connected with a moving plate, the two ends of the moving plate are slidably arranged on the two sides of the inner wall of the mounting frame through sliding mechanisms correspondingly, one side of the moving plate is fixedly connected with a plurality of connecting plates, and one ends of the connecting plates are provided with shielding assemblies used for shielding the lower end of the measuring cylinder correspondingly. According to the quantitative feeding device, different materials can be directly and conveniently quantitatively measured through the measuring cylinders, the different materials do not need to be independently proportioned in advance, and the defects that in the prior art, quantitative feeding of the different materials is inconvenient, and great inconvenience is brought to the feeding process are overcome.

Description

Technical Field

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

[0002] The feeding device is one of the core pieces of equipment in the injection molding process. Its function is to accurately and stably deliver solid or semi-solid raw materials (such as mixtures of plastic granules, metal powders and binders) into the barrel of the injection molding machine, providing material support for the subsequent melting, plasticizing and injection molding processes.

[0003] For example, the existing publication number CN211518438U specifically discloses a feeding device for an extruder, including a frame, a feeding bin, a feeding hopper, a first rotating shaft, a second rotating shaft, and a shaft drive mechanism capable of driving the first and second rotating shafts to rotate relative to each other at the same angular velocity. The feeding bin has an inlet at the top and an outlet at the bottom, and the feeding hopper is located at the inlet of the feeding bin. The first and second rotating shafts are arranged side by side in the feeding bin. The first rotating shaft has multiple first feeding paddles arranged along its axial direction, and the second rotating shaft has multiple second feeding paddles arranged along its axial direction. The second feeding paddles and the first feeding paddles are arranged alternately. In adjacent first and second feeding paddles, the first blade of the first feeding paddle and the second blade of the second feeding paddle have an included angle. This device can forcibly feed material into the extruder barrel and can achieve continuous and uniform feeding, which is beneficial to improving the production efficiency and molding quality of the extruder.

[0004] However, the following problems were found in the implementation of the relevant technology: When the above feeding device is used, if different materials need to be fed in a certain proportion and amount, it is necessary to mix a variety of materials in advance before feeding, which makes the whole feeding process too cumbersome and complicated. Therefore, the above feeding device is not convenient for quantitative feeding of different materials, which will bring great inconvenience to the feeding process. Summary of the Invention

[0005] To address the shortcomings of existing technologies that make it inconvenient to quantitatively feed different materials, which causes significant inconvenience in the feeding process, this utility model provides a quantitative feeding device for an injection molding machine.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] This utility model discloses a quantitative feeding device for an injection molding machine, comprising a mixing hopper with several feed inlets extending through its upper end. A support frame is fixedly connected to the upper end of the mixing hopper, and several measuring cylinders are fixedly connected to the support frame, with each measuring cylinder aligned with one of the feed inlets. A fixing plate is fixedly connected to the outer wall of the mixing hopper, and a mounting frame is fixedly connected to the upper surface of the fixing plate. A first cylinder is fixedly connected to one side of the mounting frame, and a movable plate is fixedly connected to the output end of the first cylinder. The two ends of the movable plate are slidably disposed on both sides of the inner wall of the mounting frame via a sliding mechanism. Several connecting plates are fixedly connected to one side of the movable plate, and each of the connecting plates has a shielding component at one end for shielding the lower end of the measuring cylinder.

[0008] As a preferred embodiment of this utility model, all of the feed inlets are circular in structure.

[0009] As a preferred technical solution of this utility model, the sliding mechanism includes a sliding groove and a slider. The sliding groove is formed on the inner side wall of the mounting frame, and the slider is fixedly connected to one end of the moving plate and is slidably disposed in the sliding groove.

[0010] As a preferred embodiment of this utility model, the mounting bracket is a U-shaped structural component.

[0011] As a preferred embodiment of the present invention, the shielding component includes a mounting plate, which is fixedly connected to one end of the connecting plate. A second cylinder is fixedly connected to one side of the mounting plate, and a baffle is fixedly connected to the output end of the second cylinder.

[0012] As a preferred embodiment of this utility model, the baffle has a circular structure.

[0013] As a preferred technical solution of this utility model, a limiting block is fixedly connected to the upper surface of the baffle plate near the second cylinder, and the limiting block has an arc-shaped structure.

[0014] The beneficial effects of this utility model are:

[0015] 1. The quantitative feeding device of this injection molding machine, when different materials need to be fed in a certain proportion and quantity, firstly places the various materials into several measuring cylinders. The measuring cylinders can then quantitatively measure the required materials. After all materials have been measured and proportioned, the first cylinder is activated. The output end of the first cylinder drives the moving plate to move, which in turn drives several connecting plates to move. These connecting plates then drive several blocking components to move simultaneously. These blocking components simultaneously open the lower ends of several measuring cylinders, thereby opening several feed inlets simultaneously. The materials in the measuring cylinders fall into the mixing hopper through the corresponding feed inlets simultaneously for mixing. After all the materials have been added, the first cylinder is adjusted to block the lower ends of several measuring cylinders again using several blocking components. This allows for convenient quantitative measurement of different materials directly through several measuring cylinders, eliminating the need for separate pre-mixing of different materials. This facilitates quantitative feeding of different materials, greatly simplifying the feeding process and solving the problem of existing technologies that make it difficult to quantitatively feed different materials, which can cause significant inconvenience in the feeding process.

[0016] 2. The quantitative feeding device of this injection molding machine firstly controls a first cylinder to move several baffles synchronously, thereby opening several feed ports simultaneously and allowing material to fall from several measuring cylinders. Secondly, controlling a second cylinder causes its output end to move a baffle, opening a specific feed port and allowing material to fall from that specific measuring cylinder. Therefore, by using the baffle assembly, not only can different materials be simultaneously fed from several measuring cylinders, but the feeding process of a single measuring cylinder can also be achieved, enabling the feeding of a single material. This facilitates the adjustment of the feeding amount for different materials and makes the entire feeding process more convenient. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a quantitative feeding device for an injection molding machine according to the present invention;

[0019] Figure 2 This is a partial structural schematic diagram of a quantitative feeding device for an injection molding machine according to the present invention;

[0020] Figure 3 This is a schematic diagram of the feed inlet of a quantitative feeding device for an injection molding machine according to this utility model;

[0021] Figure 4 This is a bottom view of the support frame and measuring cylinder of the quantitative feeding device for an injection molding machine according to this utility model;

[0022] Figure 5 This is a partial structural schematic diagram of a quantitative feeding device for an injection molding machine according to the present invention;

[0023] Figure 6 This is a schematic diagram of the shielding component of a quantitative feeding device for an injection molding machine according to the present invention;

[0024] Figure 7 yes Figure 5 Enlarged schematic diagram of part A in the diagram.

[0025] In the diagram: 1. Mixing hopper; 2. Feed inlet; 3. Support frame; 4. Measuring cylinder; 5. Fixing plate; 6. Mounting frame; 7. First cylinder; 8. Moving plate; 9. Shielding assembly; 91. Mounting plate; 92. Second cylinder; 93. Baffle; 94. Limiting block; 10. Connecting plate; 11. Slide groove; 12. Sliding block. Detailed Implementation

[0026] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0027] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, this utility model discloses a quantitative feeding device for an injection molding machine, comprising a mixing hopper 1, with a plurality of feed inlets 2 extending through the upper end of the mixing hopper 1. The feed inlets 2 are all circular. A support frame 3 is fixedly connected to the upper end of the mixing hopper 1, and a plurality of measuring cylinders 4 are fixedly connected to the support frame 3. The plurality of measuring cylinders 4 are aligned with the plurality of feed inlets 2. A fixing plate 5 is fixedly connected to the outer wall of the mixing hopper 1. A mounting frame 6 is fixedly connected to the upper surface of the fixing plate 5. A first cylinder 7 is fixedly connected to one side of the mounting frame 6. A movable plate 8 is fixedly connected to the output end of the first cylinder 7. The two ends of the movable plate 8 are slidably disposed on both sides of the inner wall of the mounting frame 6 through a sliding mechanism. A plurality of connecting plates 10 are fixedly connected to one side of the movable plate 8. A shielding component 9 for shielding the lower end of the measuring cylinders 4 is provided at one end of each of the connecting plates 10.

[0028] In use, when different materials need to be added in a certain proportion and quantity, firstly, the various materials are placed into several measuring cylinders 4. The measuring cylinders 4 can then quantitatively measure the required materials. After all materials have been measured and proportioned, the first cylinder 7 is activated. The output end of the first cylinder 7 drives the moving plate 8 to move, which in turn drives several connecting plates 10 to move. The connecting plates 10 then drive several blocking components 9 to move simultaneously, which in turn open the lower ends of several measuring cylinders 4, thereby opening several feed inlets 2 simultaneously. The materials inside will fall into the mixing hopper 1 through the corresponding feed inlet 2 for mixing. After all the materials have been fed, the first cylinder 7 is adjusted so that the lower ends of the several measuring cylinders 4 are blocked by the several blocking components 9. This allows for the direct and convenient quantitative measurement of different materials through the several measuring cylinders 4, without the need for separate pre-mixing of different materials. This facilitates the quantitative feeding of different materials, greatly improving the feeding process and solving the problem of the inconvenience of quantitative feeding of different materials in the existing technology.

[0029] The sliding mechanism includes a slide groove 11 and a slider 12. The slide groove 11 is formed on the inner wall of the mounting frame 6, which is a U-shaped structure. The slider 12 is fixedly connected to one end of the moving plate 8 and is slidably disposed in the slide groove 11. With the arrangement of the slide groove 11 and the slider 12, the slider 12 will always slide in the slide groove 11 during the movement of the moving plate 8, thereby improving the stability of the moving plate 8 during the movement.

[0030] The shielding component 9 includes a mounting plate 91, which is fixedly connected to one end of the connecting plate 10. A second cylinder 92 is fixedly connected to one side of the mounting plate 91, and a baffle 93 is fixedly connected to the output end of the second cylinder 92. The baffle 93 has a circular structure.

[0031] A limiting block 94 is fixedly connected to the upper surface of the baffle 93 near the second cylinder 92. The limiting block 94 has an arc-shaped structure. With the setting of the limiting block 94, when the baffle 93 moves directly below the measuring cylinder 4, the limiting block 94 will just abut against the outer wall of the measuring cylinder 4, thereby limiting the movement of the baffle 93 and ensuring that the baffle 93 can completely block the lower end of the measuring cylinder 4 to avoid material leakage.

[0032] First, by adjusting the first cylinder 7, several baffles 93 can be moved synchronously, thereby opening several feed ports 2 simultaneously and allowing several measuring cylinders 4 to discharge material at the same time. Second, by adjusting the second cylinder 92, the output end of the second cylinder 92 will drive the baffle 93 to move, thereby opening a single feed port 2 and allowing the corresponding measuring cylinder 4 to discharge material. Therefore, by setting up the shielding component 9, not only can different materials be discharged simultaneously through several measuring cylinders 4, but the discharge process of a single measuring cylinder 4 can also be realized, realizing the feeding process of a single material. This facilitates the adjustment of the feeding amount of different materials and makes the entire feeding process more convenient.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dosing device for an injection molding machine, comprising a mixing bowl (1), characterized in that, The upper end of the stirring bucket (1) is provided with a plurality of feeding ports (2), the upper end of the stirring bucket (1) is fixedly connected with a support frame (3), a plurality of measuring cylinders (4) are fixedly connected to the support frame (3), and a plurality of measuring cylinders (4) and a plurality of feeding ports (2) are respectively aligned, a fixed plate (5) is fixedly connected to the outer wall of the stirring bucket (1), the upper surface of the fixed plate (5) is fixedly connected with a mounting bracket (6), a first air cylinder (7) is fixedly connected to one side of the mounting bracket (6), the output end of the first air cylinder (7) is fixedly connected with a moving plate (8), and the both ends of the moving plate (8) are respectively slidably arranged on the inner walls of the mounting bracket (6), a plurality of connecting plates (10) are fixedly connected to one side of the moving plate (8), and one end of each of the plurality of connecting plates (10) is provided with a shielding assembly (9) for shielding the lower end of the measuring cylinder (4).

2. A dosing device for an injection molding machine according to claim 1, characterized in that The plurality of feeding ports (2) are circular structures.

3. A dosing device for an injection molding machine according to claim 1, characterized in that The sliding mechanism comprises a sliding groove (11) and a sliding block (12), the sliding groove (11) is arranged on the inner side wall of the mounting bracket (6), and the sliding block (12) is fixedly connected to one end of the moving plate (8) and slidably arranged in the sliding groove (11).

4. A dosing device for an injection molding machine according to claim 3, characterized in that The mounting bracket (6) is a U-shaped structural member.

5. A dosing device for an injection molding machine according to claim 1, characterized in that The shielding assembly (9) comprises a mounting plate (91), the mounting plate (91) is fixedly connected to one end of the connecting plate (10), the mounting plate (91) is fixedly connected with a second air cylinder (92) on one side, and the output end of the second air cylinder (92) is fixedly connected with a baffle (93).

6. A dosing device for an injection molding machine according to claim 5, characterized in that The baffle (93) is a circular structure.

7. A dosing device for an injection molding machine according to claim 6, characterized in that The upper surface of the baffle (93) is fixedly connected with a limiting block (94) near one side of the second air cylinder (92), and the limiting block (94) is a circular arc structure.

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