Injection molding apparatus for manufacturing a building block toy

By introducing a shearing and mixing mechanism into the injection molding equipment for building block toy manufacturing, the problem of uneven mixing of plastic raw materials is solved, ensuring the consistency of injection molded product quality.

CN224527833UActive Publication Date: 2026-07-21XINYI XIANGTIAN ELECTRONICS TECH IND CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINYI XIANGTIAN ELECTRONICS TECH IND CO LTD
Filing Date
2025-05-23
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing technologies, uneven mixing of plastic raw materials before melting leads to inconsistent quality of injection molded products.

Method used

An injection molding device for manufacturing building block toys has been designed, which includes a feeding system, a shearing mechanism and a mixing mechanism. The combined use of the shearing component and the mixing component ensures that the plastic raw materials are mixed evenly before melting.

Benefits of technology

This ensures that the plastic raw materials are completely and uniformly mixed before melting, guaranteeing that the composition of the molten material injected into the mold is consistent and improving the quality of injection-molded products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of injection molding equipment of building block toy manufacturing, including the blanking system, injection system and mould system connected in turn, blanking system includes shearing mechanism and mixing mechanism, shearing mechanism includes first mixing tank and shearing assembly, and shearing assembly is installed in first mixing tank;Mixing mechanism includes second mixing tank and mixing assembly, and mixing assembly is installed in second mixing tank. The raw material of building block toy is added to first mixing tank according to formula, is sheared by shearing assembly, and preliminary shearing mixing is completed;The mixed material mixed by first mixing tank enters second mixing tank, is mixed by mixing assembly, and ensures that raw material is mixed evenly. The raw material mixed evenly is poured into injection system to melt and inject into mould system, and various plastic raw materials cannot appear uneven mixing when melting.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding equipment technology, specifically to an injection molding equipment for manufacturing building block toys. Background Technology

[0002] Building blocks are typically cubic solid toys made of wood or plastic. Various styles of blocks can be arranged in different ways to form various buildings, animals, etc. Most of these plastic building block toys are injection molded using injection molding equipment.

[0003] In the injection molding process of building block toys, granular plastic raw materials are typically used. Before injection molding, the plastic raw materials need to be pretreated, which involves melting and uniformly mixing the granular materials before injection molding. Currently, during the pretreatment of plastic raw materials, various plastic materials are directly poured into the injection system for melting and then injected into the mold. However, uneven mixing of the various plastic materials during melting can occur, resulting in inconsistent melt composition injected into the mold and inconsistent product quality. Utility Model Content

[0004] The purpose of this invention is to design an injection molding device for manufacturing building block toys, which can achieve uniform mixing of various plastic raw materials before melting, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An injection molding device for manufacturing building block toys is provided, comprising a feeding system, an injection system, and a mold system connected in sequence. The feeding system includes a shearing mechanism and a mixing mechanism. The shearing mechanism includes a first mixing tank and a shearing assembly, the shearing assembly being installed inside the first mixing tank. The mixing mechanism includes a second mixing tank and a mixing assembly, the mixing assembly being installed inside the second mixing tank. The outlet of the first mixing tank is connected to the inlet of the second mixing tank, and the outlet of the second mixing tank is connected to the inlet of the injection system.

[0006] Furthermore, the shearing assembly includes a first motor installed on the top of the first mixing tank, the output end of the first motor being connected to a first rotating shaft, and multiple sets of cutters being installed on the first rotating shaft.

[0007] Furthermore, the mixing assembly includes a second motor installed on the top of the second mixing tank, the output end of the second motor being connected to a second rotating shaft, and multiple sets of stirring rods being installed on the second rotating shaft.

[0008] Furthermore, the feeding system also includes a raw material feeding mechanism, the discharge port of which is connected to the feed port of the shearing mechanism.

[0009] Furthermore, the raw material feeding mechanism includes multiple raw material quantitative feeding components, each of which includes a storage tank, and a weighing sensor is installed at the discharge end of the storage tank.

[0010] The raw material quantitative feeding assembly also includes a screw conveyor, the feed end of which is connected to the discharge end of the storage tank, and the discharge end of which is connected to the feed end of the first mixing tank.

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

[0012] This invention features a feeding system where raw materials for building blocks are added to a first mixing tank according to a formula. A shearing component performs initial shearing and mixing. The mixture from the first mixing tank flows through its outlet and inlet into a second mixing tank, where it is further mixed by a mixing component to ensure uniform mixing. The uniformly mixed material is then poured into an injection system for melting and injection into the mold system. This prevents uneven mixing of various plastic materials during melting, ensuring consistent melt composition and guaranteeing the quality of the injection-molded product. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model from another angle.

[0016] The names of the components shown in the diagram are as follows:

[0017] 1. Feeding system; 2. Injection system; 3. Mold system; 4. Shearing mechanism; 5. Mixing mechanism; 6. First mixing tank; 7. Shearing assembly; 8. Second mixing tank; 9. Mixing assembly; 10. Raw material feeding mechanism; 11. Storage tank; 12. Weighing sensor; 13. Screw conveyor. Detailed Implementation

[0018] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0019] Example: Reference Figure 1-2 An injection molding machine for manufacturing building block toys includes a feeding system 1, an injection system 2, and a mold system 3 connected in sequence. The feeding system 1 includes a shearing mechanism 4, a mixing mechanism 5, and a raw material feeding mechanism 10. The outlet of the raw material feeding mechanism 10 is connected to the inlet of the shearing mechanism 4, and the outlet of the shearing mechanism 4 is connected to the inlet of the mixing mechanism 5. The outlet of a second mixing tank 8 is connected to the inlet of the injection system 2. The raw materials for the building block toys are poured into the raw material feeding mechanism 10 and added to the shearing mechanism 4 according to the formula for preliminary shearing and mixing. The mixture after being mixed by the shearing mechanism 4 enters the mixing mechanism 5 to ensure that the raw materials are mixed evenly. The evenly mixed raw materials are poured into the injection system 2 for melting and then injected into the mold system 3.

[0020] The shearing mechanism 4 includes a first mixing tank 6 and a shearing assembly 7, which is installed inside the first mixing tank 6. The shearing assembly 7 includes a first motor mounted on the top of the first mixing tank 6, with its output connected to a first rotating shaft. Multiple sets of cutters are mounted on the first rotating shaft. A shut-off valve is installed at the outlet of the first mixing tank 6. Plastic raw materials are added to the first mixing tank 6 according to the formula. Then, the first motor is started, rotating the first rotating shaft and the multiple sets of cutters on it to shear and initially mix the materials, ensuring better and more uniform mixing. Then, the shut-off valve is opened, and the mixture from the first mixing tank 6 enters the mixing mechanism 5 through the outlet of the first mixing tank 6 and the inlet of the mixing mechanism 5.

[0021] The mixing mechanism 5 includes a second mixing tank 8 and a mixing component 9. The mixing component 9 is installed inside the second mixing tank 8. The outlet of the first mixing tank 6 is connected to the inlet of the second mixing tank 8, and the outlet of the second mixing tank 8 is connected to the inlet of the injection system 2. The mixing component 9 includes a second motor installed on the top of the second mixing tank 8. The output end of the second motor is connected to a second rotating shaft, and multiple sets of stirring rods are installed on the second rotating shaft. After the mixture from the first mixing tank 6 is added to the second mixing tank 8, the second motor is started. The second motor rotates, driving the second rotating shaft and the multiple sets of stirring rods on the second rotating shaft to disperse and mix the plastic raw materials, ensuring that the plastic raw materials are completely and thoroughly mixed. The uniformly mixed raw materials are poured into the injection system 2 for melting and then injected into the mold system 3. This prevents uneven mixing of various plastic raw materials during melting, ensuring that the composition of the melt injected into the mold is consistent and guaranteeing the quality of the injection-molded product.

[0022] The raw material feeding mechanism 10 includes multiple raw material quantitative feeding components. Each component includes a storage tank 11, with a weighing sensor 12 installed at the discharge end. This allows for the feeding of various plastic raw materials without the need for manual weighing and feeding, thus improving production efficiency. The raw material quantitative feeding component also includes a screw conveyor 13. The inlet of the screw conveyor 13 is connected to the outlet of the storage tank 11, and the outlet of the screw conveyor 13 is also connected to the inlet of the first mixing tank 6. The quantitatively fed raw material can be conveyed to the first mixing tank 6 via the screw conveyor 13.

[0023] The working principle of this invention is as follows: During use, various raw materials for the building block toy are poured into the storage tank 11 of the raw material quantitative feeding component. Then, a weighing sensor 12 quantitatively feeds the materials into the first mixing tank 6. The first motor is then started, rotating the first rotating shaft and multiple sets of cutters on it for shearing and initial mixing. The mixture from the first mixing tank 6 enters the mixing mechanism 5 through the outlet of the first mixing tank 6 and the inlet of the mixing mechanism 5. The second motor is then started, rotating the second rotating shaft and multiple sets of stirring rods on it for further dispersing and mixing, ensuring the plastic raw materials are completely and thoroughly mixed. The uniformly mixed raw materials are then poured into the injection system 2 for melting and injected into the mold system 3, thus completing the process.

[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "upper," "lower," "left," "right," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An injection molding machine for manufacturing building block toys, characterized in that: The system includes a feeding system (1), an injection system (2), and a mold system (3) connected in sequence. The feeding system (1) includes a shearing mechanism (4) and a mixing mechanism (5). The shearing mechanism (4) includes a first mixing tank (6) and a shearing assembly (7). The shearing assembly (7) is installed in the first mixing tank (6). The mixing mechanism (5) includes a second mixing tank (8) and a mixing assembly (9). The mixing assembly (9) is installed in the second mixing tank (8). The outlet of the first mixing tank (6) is connected to the inlet of the second mixing tank (8). The outlet of the second mixing tank (8) is connected to the inlet of the injection system (2).

2. The injection molding equipment for manufacturing building block toys according to claim 1, characterized in that: The shearing assembly (7) includes a first motor installed on the top of the first mixing tank (6), the output end of the first motor is connected to a first rotating shaft, and multiple sets of cutters are installed on the first rotating shaft.

3. The injection molding equipment for manufacturing building block toys according to claim 1, characterized in that: The mixing component (9) includes a second motor installed on the top of the second mixing tank (8), the output end of the second motor is connected to a second rotating shaft, and multiple sets of stirring rods are installed on the second rotating shaft.

4. The injection molding equipment for manufacturing building block toys according to claim 1, characterized in that: The feeding system (1) further includes a raw material feeding mechanism (10), the discharge port of which is connected to the feed port of the shearing mechanism (4).

5. The injection molding equipment for manufacturing building block toys according to claim 4, characterized in that: The raw material feeding mechanism (10) includes multiple raw material quantitative feeding components, each of which includes a storage tank (11) and a weighing sensor (12) is installed at the discharge end of the storage tank (11).

6. The injection molding equipment for manufacturing building block toys according to claim 5, characterized in that: The raw material quantitative feeding assembly also includes a screw conveyor (13), the feed end of which is connected to the discharge end of the storage tank (11), and the discharge end of which is connected to the feed end of the first mixing tank (6).