Split type injection mold
By designing split injection molds and combining air-cooling and water-cooling dual heat dissipation methods, the problem of low heat dissipation efficiency of existing injection molds is solved, and the heat dissipation efficiency and product quality of the mold are significantly improved.
Patent Information
- Application Number
- CN202421304256.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-08
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-06-08
AI Technical Summary
Existing injection molds are less efficient during the heat dissipation process, resulting in defects in plastic products due to uneven temperature or insufficient cooling, affecting product quality.
A split injection mold is designed, combining the dual roles of air cooling and water cooling, and water cooling is carried out through coils, and air pump and jet head set assist in air cooling and heat dissipation to improve heat dissipation efficiency.
It achieves more efficient heat dissipation, reduces product defects caused by excessive temperature, and improves the production efficiency and product quality of injection molds.
Smart Images

Figure CN222538232U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molds, in particular to a split injection mold. Background Art
[0002] An injection mold is a tool used to manufacture plastic products by injecting molten plastic into a mold and forming it into the desired shape and size after cooling. These molds are usually made of metal and can withstand high pressure and temperature to ensure product quality and production efficiency. The reason why injection molds need heat dissipation is that during the injection molding process, the plastic material is heated to a high temperature and melted state, and then injected into the mold for molding. After the injection is completed, the mold needs to be cooled quickly so that the plastic can solidify quickly and maintain the molded shape. If the mold cannot dissipate heat effectively, the plastic product will cause defects due to uneven temperature or insufficient cooling, affecting product quality. Therefore, the mold must have good heat dissipation performance to ensure the production of high-quality plastic products.
[0003] Existing injection molds usually dissipate heat in the following ways: Cooling water system: Many injection molds are designed with internal cooling water channels, which absorb heat from the mold surface through cooling water circulation to reduce the mold temperature. This method can quickly cool down and continuously control the mold temperature during the production process to improve production efficiency. Air cooling system: Some injection molds use an air cooling system to use high-speed airflow to take away heat, thereby achieving the effect of heat dissipation. This method is more energy-efficient than a water cooling system and has a better effect on the injection molding of some special materials. Thermal conductive materials: In the design of injection molds, some materials with good thermal conductivity can also be used, such as copper alloys or plastic materials with thermally conductive fillers. However, the above types of heat dissipation methods are relatively single, so it is often difficult to meet the heat dissipation requirements in terms of heat dissipation efficiency.
[0004] Therefore, the utility model provides a split injection mold to solve the problems raised in the above background technology. Utility Model Content
[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a split injection mold. The split structure of the device is very convenient and simple to assemble, and combines air cooling and water cooling to achieve higher heat dissipation efficiency.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A split injection mold, comprising an upper mold, a No. 1 lower mold and a No. 2 lower mold, wherein the upper mold comprises an upper top plate, an upper mold plate is fixedly arranged at the lower end of the upper top plate, and an injection groove is opened at the center of the lower end surface of the upper mold plate;
[0008] The No. 1 lower mold comprises a lower mold plate, a hollow injection molding convex block is provided through the center of the upper end surface of the lower mold plate, a trapezoidal clamping strip is fixedly provided at the front end and the rear end of the lower end surface of the hollow injection molding convex block, and air holes are provided at the center of both sides of the hollow injection molding convex block;
[0009] The second lower mold comprises a lower base, and a card seat is fixedly arranged at the front end and the rear end of the upper end surface of the lower base, and a trapezoidal card slot is opened at the center of the upper end surface of the two card seats, and a storage slot is opened at the center of the upper end surface of the lower base, and a filter plate is fixedly arranged at the upper end of the storage slot;
[0010] An air pump and a water pump are fixedly arranged on both sides of the filter plate, and two supporting telescopic legs are fixedly arranged near the center of the upper surface of the filter plate, and a supporting plate is fixedly arranged on the upper ends of the two supporting telescopic legs;
[0011] The output end of the air pump is fixedly connected to an air outlet pipe, and the other end of the air outlet pipe passes through the support plate and is fixedly connected to the upper end surface of the support plate with an air outlet double pipe, and the upper end surface of the air outlet double pipe is fixedly provided with a nozzle group;
[0012] A No. 2 water inlet pipe is fixedly arranged at the input end of the water pump, and the other end of the No. 2 water inlet pipe passes through the support plate and passes to the upper end of the support plate and is fixedly connected to a coil;
[0013] Through the above technical solution, the split structure of the device is very convenient and simple to assemble, and the combination of air cooling and water cooling has a higher heat dissipation efficiency.
[0014] Furthermore, an injection tube is provided through the inner top surface of the injection groove, and control cylinders are fixedly provided at both sides of the upper end surface of the upper top plate;
[0015] Through the above technical solution, the movement of the injection mold is achieved by controlling the oil cylinder.
[0016] Furthermore, two water outlet nozzles are arranged at the lower end of the support plate, and support legs are fixedly arranged at the four corners of the lower end surface of the lower base;
[0017] Through the above technical solution, the supporting legs play a role in supporting and increasing stability.
[0018] Furthermore, an air inlet pipe is fixedly provided at the air inlet end of the air pump, a filter head is fixedly provided at the other end of the air inlet pipe, and a water outlet pipe is fixedly provided at the output end of the water pump;
[0019] Through the above technical solution, the filter head is used to filter the inhaled air, thereby increasing safety and environmental protection.
[0020] Furthermore, the other end of the coil is fixedly connected to a first water inlet pipe, and the lower end of the first water inlet pipe passes through the support plate and the filter plate and reaches the inner bottom surface of the storage tank;
[0021] Through the above technical solution, the storage tank is used to store cold water for heat dissipation.
[0022] Further, the jet head group is located at the lower end of the coil, and the coil is located inside the injection molding groove;
[0023] Through the above technical solution, the coil is the main heat dissipation module.
[0024] Furthermore, the two trapezoidal clips are respectively located inside the trapezoidal clip slots, a semiconductor cooling sheet is embedded in the center of the lower end surface of the lower base, and a heat sink group is fixedly arranged on the lower end surface of the semiconductor cooling sheet;
[0025] Through the above technical solution, the heat sink group is used for heat dissipation of the semiconductor refrigeration plate.
[0026] The utility model has the following beneficial effects:
[0027] The utility model proposes a split injection mold. The injection mold provided in the device realizes heat dissipation under the dual effects of air cooling and water cooling, and its heat dissipation efficiency is higher. In this process, the No. 2 lower mold is connected with the No. 1 lower mold by a trapezoidal slot and a trapezoidal strip to form a split structural design. Therefore, it is more convenient to assemble, which can further improve the processing efficiency of the injection mold. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 This is a schematic diagram of the front view of the utility model;
[0029] Figure 2 This is a schematic diagram of the test shaft side of the utility model;
[0030] Figure 3 For this utility model Figure 2 Schematic diagram of the cross section of AA;
[0031] Figure 4 This is a schematic diagram of the upper mold axial side of the utility model;
[0032] Figure 5 This is a schematic diagram of the axial side of the No. 1 lower mold of the utility model;
[0033] Figure 6 This is a schematic diagram of the axial side of the second lower mold of the utility model;
[0034] Figure 7 It is a schematic diagram of the coil axial side of the utility model.
[0035] Legend:
[0036] 1. Upper mold; 2. No. 1 lower mold; 3. No. 2 lower mold; 101. Upper top plate; 102. Control cylinder; 103. Injection molding tube; 104. Injection molding groove; 105. Upper mold plate; 201. Lower mold plate; 202. Trapezoidal card strip; 203. Hollow injection molding convex block; 204. Air vent; 301. Lower base; 302. Storage slot; 303. Card seat; 304. Coil; 305. Support plate; 306. Support leg; 307. 7. Filter plate; 308. Semiconductor refrigeration sheet; 309. Heat sink assembly; 3010. Air pump; 3011. Air inlet pipe; 3012. Filter head; 3013. Air outlet pipe; 3014. No. 1 water inlet pipe; 3015. Support telescopic legs; 3016. Water outlet nozzle; 3017. Water outlet pipe; 3018. Water pump; 3019. No. 2 water inlet pipe; 3020. Nozzle assembly; 3021. Double air outlet pipes; 3022. Trapezoidal slot. DETAILED DESCRIPTION
[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0038] Example
[0039] Reference Figure 1-7 The utility model provides an embodiment: a split injection mold, including an upper mold 1, a No. 1 lower mold 2 and a No. 2 lower mold 3, the upper mold 1 includes an upper top plate 101, an upper mold plate 105 is fixedly arranged at the lower end of the upper top plate 101, and an injection groove 104 is opened at the center of the lower end surface of the upper mold plate 105;
[0040] The first lower mold 2 includes a lower mold plate 201, a hollow injection molding convex block 203 is provided through the center of the upper end surface of the lower mold plate 201, a trapezoidal clamping strip 202 is fixedly provided at the front end and the rear end of the lower end surface of the hollow injection molding convex block 203, and air holes 204 are provided at the center of both sides of the hollow injection molding convex block 203;
[0041] The second lower mold 3 includes a lower base 301, and a card seat 303 is fixedly arranged at the front end and the rear end of the upper end surface of the lower base 301, and a trapezoidal card slot 3022 is opened at the center of the upper end surface of the two card seats 303. A storage slot 302 is opened at the center of the upper end surface of the lower base 301, and a filter plate 307 is fixedly arranged at the upper end of the storage slot 302;
[0042] An air pump 3010 and a water pump 3018 are fixedly arranged on both sides of the filter plate 307. Two supporting telescopic legs 3015 are fixedly arranged near the center of the upper end surface of the filter plate 307. The upper ends of the two supporting telescopic legs 3015 are fixedly arranged with a supporting plate 305.
[0043] The output end of the air pump 3010 is fixedly connected with an air outlet pipe 3013, and the other end of the air outlet pipe 3013 passes through the support plate 305 and is connected to the upper end surface of the support plate 305 with an air outlet double pipe 3021, and the upper end surface of the air outlet double pipe 3021 is fixedly provided with a nozzle group 3020;
[0044] A second water inlet pipe 3019 is fixedly provided at the input end of the water pump 3018, and the other end of the second water inlet pipe 3019 passes through the support plate 305 and is connected to the upper end of the support plate 305 with the coil 304 fixedly connected thereto;
[0045] The split structure of the device is very convenient and simple to assemble, and the combination of air cooling and water cooling has a higher heat dissipation efficiency.
[0046] An injection tube 103 is provided through the inner top surface of the injection groove 104, and control cylinders 102 are fixedly provided on both sides of the upper end surface of the upper top plate 101. The movement of the injection mold is achieved by controlling the cylinders 102. Two water outlet nozzles 3016 are provided at the lower end of the support plate 305, and support legs 306 are fixedly provided at the four corners of the lower end surface of the lower base 301. The support legs 306 play a role of supporting and increasing stability.
[0047] An air inlet pipe 3011 is fixedly provided at the air inlet end of the air pump 3010, and a filter head 3012 is fixedly provided at the other end of the air inlet pipe 3011. A water outlet pipe 3017 is fixedly provided at the output end of the water pump 3018. The filter head 3012 is used to filter the inhaled air to increase safety and environmental protection. The other end of the coil 304 is fixedly connected to a water inlet pipe No. 3014. The lower end of the water inlet pipe No. 1 passes through the support plate 305 and the filter plate 307 to the inner bottom surface of the storage tank 302. The storage tank 302 is used to store cold water for heat dissipation.
[0048] The nozzle group 3020 is located at the lower end of the coil 304, and the coil 304 is located inside the injection groove 104. The coil 304 is the main heat dissipation module. The two trapezoidal clips 202 are respectively located inside the trapezoidal clip grooves 3022. A semiconductor cooling plate 308 is embedded in the center of the lower end surface of the lower base 301. A heat sink group 309 is fixedly set on the lower end surface of the semiconductor cooling plate 308. The heat sink group 309 is used for heat dissipation of the semiconductor cooling plate 308.
[0049] Efficient heat dissipation:
[0050] A combination of air cooling and water cooling is adopted. The water cooling system uses coil 304 for water circulation cooling, and the air pump 3010 assists air cooling and heat dissipation through the nozzle group 3020, which significantly improves the heat dissipation efficiency and solves the problem of product defects caused by excessive temperature.
[0051] Split structure, easy to assemble:
[0052] The upper mold 1, the No. 1 lower mold 2 and the No. 2 lower mold 3 are connected through the trapezoidal clamping groove 3022 and the trapezoidal clamping strip 202, which makes installation and disassembly easier and faster, improves production efficiency, and facilitates maintenance and replacement.
[0053] Strong stability:
[0054] The second lower mold 3 is designed with supporting telescopic legs 3015 and supporting legs 306 at the four corners of the bottom to ensure that the mold has good stability during the injection molding process.
[0055] Flexible operation and optimized design:
[0056] The oil cylinder 102 is controlled to realize the movement of the upper mold 1, and the adjustment is more flexible;
[0057] The filter head 3012 improves the cleanliness of the inhaled air and enhances safety and environmental protection.
[0058] Excellent storage and circulation system Storage tank 302, water outlet pipe 3017, coil 304:
[0059] The storage tank 302 and water circulation system are designed so that cooling water can be reused repeatedly, thus saving resources;
[0060] The coil 304 serves as a main heat dissipation module to improve the heat conduction efficiency.
[0061] The combination of the above advantages significantly improves the heat dissipation efficiency, production efficiency, product quality, and equipment stability and environmental protection of the injection mold.
[0062] Working principle: When in use, first fill the storage tank 302 with a sufficient amount of water, then turn on the semiconductor refrigeration sheet 308 to cool the water, and then start the water pump 3018. After the water pump 3018 is started, the cold water enters the coil 304 through the No. 1 water inlet pipe 3014, and then passes through the No. 2 water inlet pipe 3019 through the water pump 3018 and the cold water flows into the storage tank 302 through the water outlet pipe 3017, thereby realizing the water circulation. During injection molding, the heat is mainly in the hollow injection molding convex block 203, and the coil 304 is located in the hollow injection molding convex block 203 to realize the heat dissipation. At the same time, the air pump 3010 is started to absorb the external gas and spray it through the nozzle group 3020, blowing upward to the coil 304, further improving the heat dissipation efficiency.
[0063] When using this device, the cooling and heat dissipation mechanism is mainly located in the No. 2 lower mold 3, and the No. 2 lower mold 3 is connected to the No. 1 lower mold 2 through the trapezoidal card slot 3022 and the trapezoidal card strip 202, which is more convenient during installation and belongs to a split design.
[0064] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A split injection mold, comprising an upper mold (1), a No. 1 lower mold (2) and a No. 2 lower mold (3), characterized in that: The upper mold (1) comprises an upper top plate (101), an upper mold plate (105) is fixedly arranged at the lower end of the upper top plate (101), and an injection molding groove (104) is provided at the center of the lower end surface of the upper mold plate (105); The first lower mold (2) comprises a lower mold plate (201), a hollow injection molding convex block (203) is provided through the center of the upper end surface of the lower mold plate (201), a trapezoidal clamping strip (202) is fixedly provided at the front end and the rear end of the lower end surface of the hollow injection molding convex block (203), and air holes (204) are provided at the center of both sides of the hollow injection molding convex block (203); The second lower mold (3) comprises a lower base (301), a card seat (303) is fixedly arranged at the front end and the rear end of the upper end surface of the lower base (301), a trapezoidal card slot (3022) is opened at the center of the upper end surface of the two card seats (303), a storage slot (302) is opened at the center of the upper end surface of the lower base (301), and a filter plate (307) is fixedly arranged inside the storage slot (302) at the upper end; An air pump (3010) and a water pump (3018) are fixedly arranged on both sides of the filter plate (307), and two supporting telescopic legs (3015) are fixedly arranged on the upper end surface of the filter plate (307) near the center, and a supporting plate (305) is fixedly arranged on the upper ends of the two supporting telescopic legs (3015); The output end of the air pump (3010) is fixedly connected to an air outlet pipe (3013), the other end of the air outlet pipe (3013) passes through the support plate (305) and is connected to the upper end surface of the support plate (305) and is fixedly connected to an air outlet double pipe (3021), and the upper end surface of the air outlet double pipe (3021) is fixedly provided with a nozzle group (3020); A second water inlet pipe (3019) is fixedly provided at the input end of the water pump (3018), and the other end of the second water inlet pipe (3019) passes through the support plate (305) and is connected to the upper end of the support plate (305) with a coil (304) fixedly connected thereto.
2. A split injection mold according to claim 1, characterized in that: An injection tube (103) is provided through the inner top surface of the injection groove (104), and control oil cylinders (102) are fixedly provided on both sides of the upper end surface of the upper top plate (101).
3. A split injection mold according to claim 1, characterized in that: Two water outlet nozzles (3016) are arranged at the lower end of the support plate (305), and support legs (306) are fixedly arranged at the four corners of the lower end surface of the lower base (301).
4. The split injection mold according to claim 1, characterized in that: An air inlet pipe (3011) is fixedly provided at the air inlet end of the air pump (3010), a filter head (3012) is fixedly provided at the other end of the air inlet pipe (3011), and a water outlet pipe (3017) is fixedly provided at the output end of the water pump (3018).
5. The split injection mold according to claim 1, characterized in that: The other end of the coil (304) is fixedly connected to a first water inlet pipe (3014), and the lower end of the first water inlet pipe (3014) passes through the support plate (305) and the filter plate (307) to the inner bottom surface of the storage tank (302).
6. The split injection mold according to claim 1, characterized in that: The jet head group (3020) is located at the lower end of the coil (304), and the coil (304) is located inside the injection molding groove (104).
7. The split injection mold according to claim 1, characterized in that: The two trapezoidal clamping strips (202) are respectively located inside the trapezoidal clamping slots (3022), a semiconductor cooling plate (308) is embedded in the center of the lower end surface of the lower base (301), and a heat sink group (309) is fixedly arranged on the lower end surface of the semiconductor cooling plate (308).