Cooling system for production of automobile lampshade
By using aluminum alloy molds with high thermal conductivity and trapezoidal heat dissipation fins in the production of automotive lampshades, combined with air cooling and spray cooling, the problems of slow cooling speed and unevenness in traditional injection molding are solved, and fast and uniform cooling is achieved, which improves production efficiency and product quality.
Patent Information
- Application Number
- CN202422599425.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-28
AI Technical Summary
During the traditional injection molding process, the cooling speed is limited by the thermal conductivity and external environment of the mold material, resulting in a longer cooling time, and cooling unevenness is likely to cause product deformation or cracks, especially in the production of large-area thin-walled products such as lampshades.
The moving mold seat and fixed mold seat are made of aluminum alloy material with high thermal conductivity, and evenly distributed trapezoidal heat dissipation fins are set on their outer surface. Combined with air cooling and spray cooling, the temperature is monitored in real time through a temperature sensor, and a built-in snake-shaped coolant flow channel and atomizer nozzle are used to achieve fast and uniform cooling.
It improves cooling efficiency, reduces internal stress of the product, reduces the risk of deformation and cracking, shortens the production cycle and improves product quality.
Smart Images

Figure CN223252285U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a cooling system used in the production of automobile lampshades. Background Art
[0002] Injection molding is a widely used technology for producing automotive lampshades. It allows for the efficient production of plastic products with complex shapes and precise dimensions. However, effectively managing heat during this process is a challenge, as the plastic material must quickly fill the mold and solidify at high temperatures, while also cooling rapidly to maintain shape accuracy and a smooth surface.
[0003] In traditional injection molding, the cooling phase typically relies on the mold's inherent heat dissipation capabilities. The main drawback of this approach is that cooling speed is limited by the mold material's thermal conductivity and external environmental conditions, often resulting in extended cooling times and slowing production. Furthermore, uneven cooling can easily increase internal stress in the product, potentially causing deformation or cracking, particularly in the production of large, thin-walled products like lampshades.
[0004] Therefore, to improve production efficiency and ensure the quality of injection molded products such as automotive headlights, a new cooling technology is needed that can accelerate cooling rates and improve cooling uniformity to overcome the shortcomings of traditional methods. This new technology should achieve rapid, effective, and uniform heat dissipation to shorten production cycles, reduce manufacturing costs, and improve the structural integrity and surface quality of the product. Utility Model Content
[0005] The purpose of the utility model is to solve the above deficiencies in the prior art and to provide a cooling system for the production of automobile lampshades.
[0006] A cooling system for automobile lampshade production includes a movable mold base, a fixed mold base, a mold cavity, and an injection port. Temperature sensors are provided at the corners and middle position of the mold cavity, the depth of the mold cavity, and the injection port. The movable mold base and the fixed mold base are both made of a metal material with a thermal conductivity of 100 W / m·K or more. The outer surfaces of the movable mold base and the fixed mold base are provided with heat dissipation fins. The heat dissipation fins include a plurality of parallel and evenly distributed trapezoidal fins. The base of the trapezoidal fins is wider than the tip and gradually narrows toward the tip. The gap between two adjacent trapezoidal fins forms an air flow channel. A heat dissipation frame is provided on the outer side of the heat dissipation fins. The heat dissipation frame includes a left frame, a right frame, and a top frame. A pair of heat dissipation fans are provided on the left frame and the right frame. The heat dissipation fans are perpendicular to the trapezoidal fins. The top frame is provided with a plurality of atomizer nozzles. The atomizer nozzles are connected to a water tank via a pressure pump. Coolant flow channels distributed in a serpentine array are provided inside the movable mold base and the fixed mold base. The inlet and outlet of the coolant flow channels are provided with copper joints. The copper joints are connected to the water tank via a hose and a circulation pump.
[0007] As a further improvement, the metal material of the movable mold base and the fixed mold base is aluminum alloy. Aluminum alloy has high thermal conductivity and strength, which can improve the heat transfer effect of the mold.
[0008] As a further improvement, the trapezoidal fins are integrally formed with the movable die base or the fixed die base through milling, so that the heat on the movable die base and the fixed die base can be better transferred to the heat dissipation fins.
[0009] As a further improvement, the temperature sensor is connected to the user interface via wired or wireless means to collect and display the real-time temperature in the cavity. Real-time temperature monitoring ensures temperature balance during the molding process, thereby improving the appearance and performance of the product.
[0010] As a further improvement, the copper joint and the cooling channel are sealed by thermally conductive silicone grease, which has good sealing and thermal conductivity.
[0011] As a further improvement, the hose is made of polyethylene, polyvinyl chloride or silicone resin, which has good chemical stability and aging resistance.
[0012] As a further improvement, the water storage tank is connected to a refrigeration device to reduce the temperature of the coolant and the temperature of the water mist sprayed from the atomizer nozzle, thereby improving the heat dissipation effect.
[0013] Beneficial effects:
[0014] Improve cooling efficiency: By combining spray and air cooling, the cooling rate is greatly increased and the production cycle is shortened.
[0015] Reduce internal stress: The built-in coolant flow channel provides uniform and rapid cooling, reducing the internal stress of the plastic part and lowering the risk of deformation and cracking. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a front view of a cooling system used in the production of automobile lampshades;
[0017] Figure 2 It is a side view of a cooling system used in the production of automobile lampshades;
[0018] Figure 3 It is a cross-sectional view of the movable mold base;
[0019] 1. Moving mold base 2. Fixed mold base 3. Heat sink fins 4. Trapezoidal fins 5. Heat sink 6. Cooling fan 7. Atomizer nozzle 8. Copper joint 9. Coolant flow channel DETAILED DESCRIPTION
[0020] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.
[0021] like Figures 1 to 3 As shown, a cooling system for automobile lampshade production includes a movable mold base 1, a fixed mold base 2, heat dissipation fins 3, trapezoidal fins 4, a heat dissipation frame 5, a heat dissipation fan 6, an atomizer nozzle 7, a copper joint 8 and a coolant flow channel 9.
[0022] A cooling system for automobile lampshade production, comprising a movable mold base 1, a fixed mold base 2, a mold cavity and an injection port, temperature sensors are provided at the corners and middle position of the mold cavity, at the depth of the mold cavity and at the injection port, the temperature sensors are connected to the user interface by wired or wireless means, and are used to collect and display the real-time temperature in the mold cavity, and real-time temperature monitoring ensures temperature balance during the molding process, thereby improving the appearance and performance of the product, the metal material of the movable mold base 1 and the fixed mold base 2 is aluminum alloy, which has high thermal conductivity and strength and can improve the heat transfer effect of the mold, the outer surfaces of the movable mold base 1 and the fixed mold base 2 are provided with heat dissipation fins 3, the heat dissipation fins 3 include a plurality of parallel and evenly distributed trapezoidal fins 4, the trapezoidal fins 4 are integrally formed with the movable mold base 1 or the fixed mold base 2 by milling, the heat on the movable mold base 1 and the fixed mold base 2 can be better transferred to the heat dissipation fins 3, the base of the trapezoidal fins 4 is wider than the tip and gradually increases towards the tip Gradually narrowing, the gap between two adjacent trapezoidal fins 4 forms an air flow channel, and a heat dissipation frame 5 is provided on the outside of the heat dissipation fin 3, and the heat dissipation frame 5 includes a left frame, a right frame and a top frame. A pair of cooling fans 6 are provided on the left frame and the right frame, and the cooling fans 6 are perpendicular to the trapezoidal fins 4. A plurality of atomizer nozzles 7 are provided on the top frame, and the atomizer nozzle 7 is connected to the water tank through a pressure pump. A serpentine array of coolant flow channels 9 are provided inside the movable mold base 1 and the fixed mold base 2, and a copper joint 8 is provided at the inlet and outlet of the coolant flow channel 9. The copper joint 8 is connected to the water tank through a hose and a circulation pump. The material of the hose is polyethylene, polyvinyl chloride or silicone resin, which has good chemical stability and aging resistance. The copper joint 8 is sealed with thermal conductive silicone grease and the thermal conductive silicone grease has good sealing and thermal conductivity. The water tank is connected to the refrigeration device to reduce the coolant temperature and the temperature of the water mist sprayed by the atomizer nozzle 7, thereby improving the heat dissipation effect.
[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A cooling system for automobile lampshade production, comprising a movable mold base, a fixed mold base, a mold cavity, and an injection port. Temperature sensors are provided at the corners and middle of the mold cavity, at the depth of the mold cavity, and at the injection port. The system is characterized in that: Both the movable mold base and the fixed mold base are made of metal materials with a thermal conductivity of more than 100W / m·K. The outer surfaces of the movable mold base and the fixed mold base are provided with heat dissipation fins, which include a plurality of parallel and evenly distributed trapezoidal fins. The base of the trapezoidal fin is wider than the tip and gradually narrows toward the tip. The gap between two adjacent trapezoidal fins forms an air flow channel. A heat dissipation frame is provided on the outer side of the heat dissipation fins. The heat dissipation frame includes a left frame, a right frame and a top frame. A pair of cooling fans are provided on the left frame and the right frame. The cooling fans are perpendicular to the trapezoidal fins. A plurality of atomizer nozzles are provided on the top frame. The atomizer nozzles are connected to the water tank through a pressure pump. Coolant flow channels distributed in a serpentine array are provided inside the movable mold base and the fixed mold base. The inlet and outlet of the coolant flow channels are provided with copper joints, which are connected to the water tank through a hose and a circulation pump.
2. The cooling system for automobile lampshade production according to claim 1, characterized in that: The metal materials of the movable die base and the fixed die base are aluminum alloy.
3. The cooling system for automobile lampshade production according to claim 1, characterized in that: The trapezoidal fins are integrally formed with the movable die base or the fixed die base through milling.
4. The cooling system for automobile lampshade production according to claim 1, characterized in that: The temperature sensor is connected to the user interface via a wired or wireless method and is used to collect and display the real-time temperature in the cavity.
5. The cooling system for automobile lampshade production according to claim 1, characterized in that: The copper joint and the cooling channel are sealed by thermally conductive silicone grease.
6. The cooling system for automobile lampshade production according to claim 1, characterized in that: The material of the hose is polyethylene, polyvinyl chloride or silicone resin.
7. The cooling system for automobile lampshade production according to claim 1, characterized in that: The water storage tank is connected to the refrigeration device.