Injection molding equipment for plastic product production
By designing preheating components in the injection molding equipment and using the electric heating wire and fan body to achieve more uniform and rapid heating, the problems of long and uneven heating time of traditional injection molding equipment are solved, and the production efficiency and product quality stability are improved.
Patent Information
- Application Number
- CN202421842236.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2034-08-01
AI Technical Summary
The heating system of traditional injection molding equipment requires a long time to heat the plastic, resulting in low production efficiency and uneven heating, affecting the quality and consistency of plastic products.
An injection molding device including a preheating assembly is designed, which includes a heating chamber, a fan frame, a fan body and an electric heating wire. The air is heated through the electric heating wire and forced convection through the fan body to achieve more uniform and rapid heating.
By preheating plastic raw materials in advance, the heating time during the injection molding process is reduced, the production efficiency is improved, and the raw materials have the appropriate temperature and fluidity when entering the injection molding process, the stability of product quality is improved, and the energy utilization efficiency is improved.
Smart Images

Figure CN222886204U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic products, in particular to an injection molding device for plastic product production. Background Technique
[0002] The injection molding device for plastic product production is a mechanical device for manufacturing various plastic products. It heats plastic raw materials to a molten state, then injects them into a mold under high pressure, and after cooling and shaping, forms the required plastic products.
[0003] Traditional injection molding devices usually rely on the heating system of the injection molding machine itself to heat plastic raw materials to the required processing temperature. However, this method has some deficiencies. First of all, the heating system of the injection molding machine often takes a long time to heat the plastic, resulting in low production efficiency. Secondly, the problem of uneven heating is also relatively common, which will affect the quality and consistency of plastic products. Content of the Utility Model
[0004] To solve the above technical problems, the utility model provides an injection molding device for plastic product production.
[0005] The utility model is realized by the following technical solutions: an injection molding device for plastic product production, including a storage cylinder, the upper surface of the storage cylinder is fixedly connected with a flange, the upper surface of the flange is fixedly installed with a sealing cover through bolts, and a preheating component is arranged on the upper surface of the sealing cover;
[0006] The preheating component includes a heating chamber, the heating chamber is fixedly connected to the upper surface of the sealing cover, the inner top wall of the heating chamber is fixedly installed with a fan frame through bolts, a fan main body is rotatably connected inside the fan frame, and heating wires are fixedly connected to the inner wall of the heating chamber.
[0007] Through the above technical solutions, by arranging a preheating component above the storage cylinder, the plastic raw materials can be preheated in advance so that they reach or approach the required processing temperature before entering the injection molding process. This reduces the heating time during the injection molding process, thereby improving the production efficiency. The preheating component can heat the raw materials more concentratedly, reduce heat loss, and improve the energy utilization efficiency. The heating wires directly heat the air and force convection through the fan main body, making the heating more uniform and rapid. Through the combination of the heating wires and the fan main body, the heating temperature and air flow can be precisely controlled to ensure that the raw materials have appropriate temperature and fluidity when entering the injection molding link, which is beneficial to the stability of product quality.
[0008] As a further improvement of the above solution, a servo motor is fixedly connected to the upper surface of the sealing cover, and a transmission shaft is fixedly connected to the output end of the servo motor.
[0009] Through the above technical solution, the servo motor can provide precise speed, position and torque control, which is very important for the precise material conveying and mixing required in the injection molding process.
[0010] As a further improvement of the above solution, an adapter sleeve is fixedly connected to the surface of the transmission shaft, and stirring support rods are fixedly connected to the outer surface of the adapter sleeve.
[0011] Through the above technical solution, the stirring support rods may be impacted and worn by the material during operation. The presence of the adapter sleeve can, to a certain extent, protect the transmission shaft from damage and reduce the maintenance cost.
[0012] As a further improvement of the above solution, a heat delivery groove is formed in the upper surface of the sealing cover.
[0013] Through the above technical solution, the heat delivery groove provides a direct conduction path for the heat source, enabling the heat to be transferred more effectively to the inside of the storage cylinder, thereby improving the heating efficiency. The heat is more evenly distributed inside the storage cylinder, avoiding local overheating or uneven heating, which is beneficial to the uniform melting and mixing of the material.
[0014] As a further improvement of the above solution, a feeding pipe is fixedly connected to the outer surface of the storage cylinder.
[0015] Through the above technical solution, the feeding pipe provides a convenient channel for adding materials. The operator can easily add materials into the storage cylinder through the feeding pipe, reducing the labor intensity and operation complexity. Moreover, the design of the feeding pipe can prevent the operator from directly contacting the materials inside the storage cylinder, reducing the risk of accidental contact and contamination and improving the operation safety.
[0016] As a further improvement of the above solution, an observation window is formed at the front end of the storage cylinder.
[0017] Through the above technical solution, the observation window allows the operator to observe the material state inside the storage cylinder and the equipment operation in real time, facilitating the timely discovery and handling of abnormal situations and ensuring the smooth progress of the production process.
[0018] As a further improvement of the above solution, holes matching the bolts on the surface of the flange are formed in the surface of the sealing cover.
[0019] Through the above technical solution, through the cooperation of the bolts and the holes, the sealing cover can be firmly fixed on the flange, ensuring the sealing performance and stability of the equipment, preventing material leakage and environmental pollution.
[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0021] By setting up a preheating component in the present utility model, the heating wire is energized to heat the air in the heating chamber to the required temperature. Then the fan body starts to rotate, forcing air convection to make the temperature in the heating chamber more uniform. The plastic raw material enters the heating chamber from the storage cylinder and is preheated during this process, ensuring that the raw material has appropriate temperature and fluidity when entering the injection molding process, reaching or approaching the required processing temperature. The preheated plastic raw material enters the injection molding process. Since the required processing temperature has been reached, the heating time during the injection molding process is reduced, thus improving the production efficiency. Description of the Drawings
[0022] Figure 1 It is a schematic diagram of the overall structure of the present utility model;
[0023] Figure 2 It is a schematic diagram of the structure of the heat delivery groove of the present utility model;
[0024] Figure 3 It is a schematic diagram of the structure of the stirring support rod of the present utility model;
[0025] Figure 4 It is a schematic diagram of the structure of the feeding pipe of the present utility model;
[0026] Figure 5 It is a schematic diagram of the structure of the preheating component of the present utility model.
[0027] Main Symbol Explanation:
[0028] 1. Storage cylinder; 2. Flange; 3. Sealing cover; 4. Preheating component; 401. Heating chamber; 402. Fan body frame; 403. Fan body; 404. Heating wire; 5. Servo motor; 6. Transmission shaft; 7. Adapter sleeve; 8. Stirring support rod; 9. Heat delivery groove; 10. Feeding pipe; 11. Observation window. Specific Embodiment
[0029] Next, in combination with the drawings and specific embodiments, the present utility model will be further described. It should be noted that on the premise of no conflict, the following described embodiments or technical features can be arbitrarily combined to form new embodiments.
[0030] Embodiment:
[0031] Please refer to Figures 1-5 , an injection molding device for producing plastic products in this embodiment includes a storage cylinder 1. A flange 2 is fixedly connected to the upper surface of the storage cylinder 1. A sealing cover 3 is fixedly installed on the upper surface of the flange 2 through bolts. A preheating component 4 is arranged on the upper surface of the sealing cover 3;
[0032] The preheating component 4 includes a heating chamber 401. The heating chamber 401 is fixedly connected to the upper surface of the sealing cover 3. The inner top wall of the heating chamber 401 is fixedly installed with a fan frame 402 by bolts. A fan body 403 is rotatably connected inside the fan frame 402. The inner wall of the heating chamber 401 is fixedly connected with a heating wire 404. When the device is started, the heating wire 404 is powered on for heating, heating the air in the heating chamber 401 to the required temperature. The fan body 403 starts to rotate, forcing air convection, making the temperature in the heating chamber 401 more uniform. The plastic raw material enters the heating chamber 401 from the storage cylinder 1 and is preheated during this process, reaching or approaching the required processing temperature. The preheated plastic raw material enters the injection molding link. Since the required processing temperature has been reached, the heating time during the injection molding process is reduced, improving production efficiency. Through the setting of the preheating component 4, the raw materials can be heated more concentratedly, reducing heat loss and improving energy utilization efficiency.
[0033] A servo motor 5 is fixedly connected to the upper surface of the sealing cover 3. The output end of the servo motor 5 is fixedly connected with a transmission shaft 6. The servo motor 5 can provide precise speed, position, and torque control, which is very important for the precise material conveying and mixing required in the injection molding process.
[0034] A connection sleeve 7 is fixedly connected to the surface of the transmission shaft 6. Stirring support rods 8 are fixedly connected to the outer surface of the connection sleeve 7. The stirring support rods 8 can prevent raw material sedimentation through stirring, ensuring the uniform distribution of raw materials, and stirring the raw materials can ensure the uniform mixing of raw materials, avoiding product quality problems caused by uneven raw materials.
[0035] A heat delivery groove 9 is opened on the upper surface of the sealing cover 3. The design of the heat delivery groove 9 provides a conduction path for the heat source to directly reach the inside of the storage cylinder 1. This not only enhances the efficiency of heat transfer but also ensures the uniform distribution of the temperature inside the storage cylinder 1. This design effectively prevents local overheating or uneven heating, playing a key role in the uniform melting and full mixing of materials, and thus improving the quality and efficiency of material processing.
[0036] A feeding pipe 10 is fixedly connected to the outer surface of the storage cylinder 1. The feeding pipe 10 provides a convenient channel for adding materials. Operators can easily add materials into the storage cylinder 1 through the feeding pipe 10, reducing labor intensity and operation complexity. And the design of the feeding pipe 10 can prevent operators from directly contacting the materials inside the storage cylinder 1, reducing the risk of accidental contact and contamination and improving the safety of operation.
[0037] An observation window 11 is opened at the front end of the storage cylinder 1. The observation window 11 allows operators to observe the material state inside the storage cylinder 1 and the operation status of the device in real time, facilitating the timely discovery and handling of abnormal situations and ensuring the smooth progress of the production process.
[0038] The surface of the sealing cover 3 is provided with holes that match the bolts on the surface of the flange 2. Through the cooperation of the bolts and the holes, the sealing cover 3 can be firmly fixed on the flange 2, ensuring the sealing performance and stability of the equipment, preventing material leakage and environmental pollution.
[0039] The implementation principle of an injection molding device for plastic product production in the embodiment of this application is as follows: The operator puts the plastic raw materials into the storage cylinder 1, ensures that the sealing cover 3 is fixedly installed on the flange 2 through bolts to ensure the sealing of the storage cylinder 1, turns on the power supply, the heating wire 404 starts to generate heat, the fan main body 403 starts to rotate, forcing the air in the forced heating chamber 401 to flow. The heating wire 404 heats the air, causing the temperature in the heating chamber 401 to gradually rise. The fan main body 403 rotates, and the heated air is effectively transmitted to the inside of the storage cylinder 1 through the heat delivery groove 9, thereby improving the heating efficiency, making the heat distribution in the storage cylinder 1 more uniform, avoiding local overheating or uneven heating, and being beneficial to the uniform melting and mixing of the materials. At this time, the operator starts the servo motor 5 to drive the stirring support rod 8 on the surface of the transmission shaft 6 to rotate. The stirring support rod 8 can prevent the raw materials from settling through the stirring effect, ensuring the uniform distribution of the raw materials, and can also make the materials evenly heated. The design of the feeding pipe 10 can prevent the operator from directly contacting the materials inside the storage cylinder 1, reducing the risk of accidental contact and pollution, and improving the safety of operation.
[0040] The above implementation manners are only the preferred implementation manners of the present utility model and cannot be used to limit the scope of protection of the present utility model. Any non-substantial changes and substitutions made by those skilled in the art based on the present utility model fall within the scope of protection required by the present utility model.
Claims
1. An injection molding device for producing plastic products, characterized in that: It comprises a storage cylinder (1), the upper surface of which is fixedly connected to a flange (2), the upper surface of which is fixedly mounted a sealing cover (3) by bolts, and the upper surface of which is provided with a preheating assembly (4); The preheating assembly (4) comprises a heating chamber (401), wherein the heating chamber (401) is fixedly connected to the upper surface of the sealing cover (3), a fan frame (402) is fixedly mounted on the inner top wall of the heating chamber (401) by means of bolts, a fan body (403) is rotatably connected to the interior of the fan frame (402), and an electric heating wire (404) is fixedly connected to the inner wall of the heating chamber (401).
2. The injection molding equipment for producing plastic products according to claim 1, characterized in that: A servo motor (5) is fixedly connected to the upper surface of the sealing cover (3), and a transmission shaft (6) is fixedly connected to the output end of the servo motor (5).
3. An injection molding device for producing plastic products as claimed in claim 2, characterized in that: A connection sleeve (7) is fixedly connected to the surface of the transmission shaft (6), and a stirring support rod (8) is fixedly connected to the outer surface of the connection sleeve (7).
4. The injection molding equipment for producing plastic products according to claim 1, characterized in that: The upper surface of the sealing cover (3) is provided with a heat transfer groove (9).
5. The injection molding equipment for producing plastic products according to claim 1, characterized in that: A feeding pipe (10) is fixedly connected to the outer surface of the storage cylinder (1).
6. The injection molding equipment for producing plastic products according to claim 1, characterized in that: The front end of the storage cylinder (1) is provided with an observation window (11).
7. The injection molding equipment for producing plastic products according to claim 1, characterized in that: The surface of the sealing cover (3) is provided with holes matching the bolts on the surface of the flange (2).
Citation Information
Cited By
Injection molding equipment for plastic product production
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