Injection mold capable of efficiently and uniformly dissipating heat

By incorporating components such as spiral tubes, heat dissipation fins, temperature sensors, and flow regulating valves into the injection mold, the problems of low cooling efficiency and uneven heat dissipation are solved, achieving efficient and uniform heat dissipation, simplifying the mold core assembly and disassembly process, and improving molding efficiency and energy efficiency.

CN120941676APending Publication Date: 2025-11-14SHENZHEN NANYA TAIDA PLASTIC PRODS
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Patent Information

Application Number
CN202511196346.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-26
Publication Date
2025-11-14

AI Technical Summary

Technical Problem

Existing injection molds suffer from low cooling efficiency and uneven heat dissipation, resulting in long molding cycles, product deformation, and high energy consumption.

Method used

The first and second spiral tubes are used to cool the sides and bottom of the mold cavity. The flow rate of the coolant is dynamically adjusted by heat dissipation fins, temperature sensors and flow regulating valves. The cooling system is maintained by pump and condenser. A sealing structure is set to prevent material from overflowing. The mold core structure is quick to disassemble and assemble to achieve efficient and uniform heat dissipation of the mold.

Benefits of technology

It achieves efficient and uniform heat dissipation of the mold, reduces product shrinkage or warping, improves molding efficiency and energy efficiency, ensures temperature uniformity, and simplifies the assembly and disassembly process of the mold core.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides an efficient and uniform heat dissipation injection mold, and relates to the field of injection molds. The efficient and uniform heat dissipation injection mold comprises a base, a lower mold core and an upper mold core, the top of the base is fixedly connected with the lower mold and a limiting frame, the surface of the limiting frame is slidably connected with the upper mold, the bottom of the upper mold is fixedly connected with a mounting frame, and a mold cavity is formed in the lower mold. According to the injection mold, the side face of the mold cavity can be cooled in a targeted mode by arranging the first spiral pipe, uneven material shrinkage caused by too high temperature of the side wall is prevented, bottom heat dissipation can be enhanced by arranging the second spiral pipe, warping of an injection molding material caused by too high temperature of the bottom is avoided, and the heat dissipation area and air convection can be increased by arranging the heat dissipation fins; the temperature sensor and the flow adjusting valve are arranged at the top of the auxiliary cooling mold, so that the flow speed of cooling liquid can be dynamically adjusted, the temperature uniformity is ensured, and sink marks or warping of products can be reduced.
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Description

Technical Field

[0001] This invention relates to the field of injection molds, specifically to an injection mold with high efficiency and uniform heat dissipation. Background Technology

[0002] A mold is a tool used to create shaped objects. The mold core is a precision part used for the key operation of the central part of the mold. The mold core and the mold work together to compress and shape the product. Mold cores generally have complex structures, are very difficult to manufacture, and are very expensive. Often, the labor cost of manufacturing them far exceeds the cost of the materials themselves.

[0003] A search revealed an existing patent (publication number: CN219968643U) that discloses an injection mold with a quick-change mold core, including a mold frame. The top of the mold frame has two sets of slots, arranged one on the left and one on the right. One end of the screw is fixedly equipped with a handle. A lifting structure is fixedly installed inside the mold frame. This utility model relates to the field of injection mold technology. This utility model replaces the traditional injection mold. The mold frame and mold core are detachable, allowing for quick replacement of the mold core without the need for additional equipment. During replacement, simply insert the locking block on the mold core into the slot in the mold frame, then rotate the handle to fix the locking block with the screw to complete the mold core replacement. Furthermore, when the mold core needs to be replaced, the lifting mechanism can lift the mold core to be replaced, making it easier for workers to remove, thus improving the efficiency of mold core replacement and simplifying the operation.

[0004] While this patented technology solves the problem that traditional injection molds typically use a fixed connection between the mold core and the mold body during operation, and the connection method is relatively complex, making it difficult to replace the mold core, the device still suffers from low cooling efficiency and uneven heat dissipation, resulting in long molding cycles, product deformation, and high energy consumption. Therefore, those skilled in the art provide an injection mold with efficient and uniform heat dissipation to solve the problems mentioned in the background art. Summary of the Invention

[0005] 1. Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an injection mold with efficient and uniform heat dissipation, which solves the problems of low cooling efficiency, uneven heat dissipation, and the resulting long molding cycle, product deformation, and high energy consumption.

[0006] 2. Technical Solution To achieve the above objectives, the present invention provides the following technical solution: An efficient and uniform heat dissipation injection mold includes a base, a lower mold core, and an upper mold core. The lower mold and a limiting frame are fixedly connected to the top of the base. The upper mold is slidably connected to the surface of the limiting frame. An installation frame is fixedly connected to the bottom of the upper mold. A mold cavity is opened inside the lower mold. The lower mold core and the upper mold core are respectively installed and connected in the mold cavity and the installation frame. A first spiral tube is provided on the inner side of the mold cavity, and a second spiral tube is provided at the bottom of the mold cavity. Multiple temperature sensors are fixedly connected to both the inner side and bottom of the mold cavity. Multiple heat dissipation fins are provided on the top of the upper mold. A liquid storage tank is opened inside the base. A condenser and a pump body are fixedly connected to the side of the base. The input end of the condenser is located on the inner side of the liquid storage tank. The output end of the condenser is fixedly connected to the input end of the pump body. A water pipe is fixedly connected to the output end of the pump body. A first inlet pipe and a first return pipe are fixedly connected to the input and output ends of the first spiral tube, respectively. A second inlet pipe and a second return pipe are fixedly connected to the input and output ends of the second spiral tube, respectively. The input ends of the first inlet pipe and the second inlet pipe are fixedly connected to the surface of the water pipe. A connecting pipe is fixedly connected to the output ends of the first return pipe and the second return pipe. The output end of the connecting pipe is located on the inner side of the liquid storage tank. Flow regulating valves are fixedly connected to the surfaces of both the first inlet pipe and the second inlet pipe. Through the above technical solution, by setting the first spiral tube, the side of the mold cavity can be cooled in a targeted manner to prevent uneven material shrinkage caused by excessive side wall temperature. By setting the second spiral tube, bottom heat dissipation can be enhanced to avoid warping of the injection molded material due to excessive bottom temperature. By setting heat dissipation fins, the heat dissipation area and air convection can be increased to assist in cooling the top of the mold. By setting temperature sensors and flow regulating valves, the coolant flow rate can be dynamically adjusted to ensure temperature uniformity and reduce product shrinkage or warping. When cooling the mold core, the pump and condenser operate to draw coolant from the storage tank and then flow into the first and second spiral tubes through water pipes, the first inlet pipe and the second inlet pipe, thereby cooling the surface and bottom of the mold core.

[0007] Furthermore, a sealing protrusion is fixedly connected to the top of the lower mold core, a sealing groove is opened at the bottom of the upper mold core, a connector is provided at the top of the upper mold core, and a feed pipe is installed and connected to the top of the connector; The above technical solution, by setting sealing protrusions and sealing grooves, forms a sealing structure when the mold is closed, which can prevent the injection material from overflowing. By setting connectors and feed pipes, the molten material can be guided into the mold cavity, which can ensure smooth injection.

[0008] Furthermore, multiple mounting holes are provided on both the surface of the lower mold core and the surface of the upper mold core, and multiple movable grooves are provided on both the inner side of the mold cavity and the inner side of the mounting frame. A movable plate is slidably connected inside the movable groove, and a mounting block is fixedly connected to the side of the movable plate. One end of the mounting block is engaged in the mounting hole. The above technical solution enables quick assembly and disassembly of the mold core by setting mounting holes and engaging mounting blocks. The movable groove can accommodate the elastic shrink rod and the mounting block.

[0009] Furthermore, an elastic retractable rod is fixedly connected to the inner side of the movable groove, one end of the elastic retractable rod is fixedly connected to the side of the movable plate, a threaded cap is fixedly connected to the inner side of the movable groove, an installation bolt is threaded inside the threaded cap, one end of the installation bolt is fixedly connected to a top plate, and the side of the top plate overlaps the side of the movable plate. With the above technical solution, by setting up an elastic contraction rod, the movable plate can be pulled to move. When the mold core is detached, people can rotate the mounting bolts so that the top plate no longer squeezes the movable plate. Under the action of the elastic contraction rod, the mounting block can be detached from the mounting hole. After the detachment is completed, people can disassemble the mold core.

[0010] Furthermore, a shrinkage groove is provided at the bottom of the mold cavity, and a limiting groove is provided on the inner side of the shrinkage groove. A rotating shaft is tightly nested in the bottom of the shrinkage groove through a bearing. A threaded rod is fixedly connected to the top of the rotating shaft. A threaded cylinder is threadedly connected to the surface of the threaded rod. A limiting block is fixedly connected to the surface of the threaded cylinder. The limiting block is slidably connected in the limiting groove. Through the above technical solution, the rotation of the rotating shaft, and the limiting of the limiting groove and the limiting block, can drive the threaded cylinder to move on the surface of the threaded rod. By moving the threaded cylinder, the lower mold core can be pushed out of the mold cavity when disassembling the lower mold core, thus making it easier for people to disassemble the lower mold core.

[0011] Furthermore, a worm gear is fixedly connected to the surface of the rotating shaft, a transmission rod is tightly nested inside the inner side of the shrinkage groove via a bearing, a worm is fixedly connected to the surface of the transmission rod, the worm gear and the worm mesh with each other, and a knob is fixedly connected to one end of the transmission rod; The above technical solution allows for the rotation of the transmission rod to be powered by a knob, and the direction of force transmission can be changed by the meshing of the worm gear and worm, thus providing power for the rotation of the shaft.

[0012] Furthermore, each of the four corners of the base is fixedly connected with an adjusting bolt, the surface of the adjusting bolt is threaded with an adjusting screw, the bottom end of the adjusting screw is fixedly connected with a support plate, and the surface of the adjusting screw is fixedly connected with a toggle ring. The above technical solution allows for adjustment of the position of the adjusting screw on the surface of the adjusting bolt by rotating the toggle ring, thereby adjusting the overall height of the device and making it more convenient to use.

[0013] Furthermore, a liquid filling pipe is provided on the top of the liquid storage tank, and a drain valve is fixedly connected to the side of the base, with the input end of the drain valve located on the inner side of the liquid storage tank. The above technical solution, by setting up a drain valve, makes it easy for people to drain the liquid in the storage tank.

[0014] 3. Beneficial effects This invention provides an injection mold with efficient and uniform heat dissipation. It has the following beneficial effects: 1. This invention provides an injection mold with efficient and uniform heat dissipation. By setting a first spiral tube, the side of the mold cavity can be cooled in a targeted manner to prevent uneven material shrinkage caused by excessive sidewall temperature. By setting a second spiral tube, bottom heat dissipation can be enhanced to prevent warping of the injection molded material due to excessive bottom temperature. By setting heat dissipation fins, the heat dissipation area and air convection can be increased to assist in cooling the top of the mold. By setting a temperature sensor and a flow regulating valve, the coolant flow rate can be dynamically adjusted to ensure temperature uniformity and reduce product shrinkage or warping. When cooling the mold core, the pump and condenser operate to draw coolant from the storage tank and then flow into the first and second spiral tubes through water pipes, the first inlet pipe and the second inlet pipe, thereby cooling the surface and bottom of the mold core. The heated coolant can flow back into the storage tank through the first return pipe, the second return pipe and the connecting pipe.

[0015] 2. This invention provides an injection mold with efficient and uniform heat dissipation. By setting mounting bolts, the mounting block can be disengaged from the mounting hole by rotating the mounting bolts. After disengagement, the knob can be rotated to rotate the transmission rod and worm gear. Through the meshing of the worm gear and worm wheel, the rotating shaft can be rotated. Through the limiting groove and limiting block, the threaded cylinder can be moved on the surface of the threaded rod. By moving the threaded cylinder, the lower mold core can be ejected from the mold cavity when disassembling, thus facilitating the disassembly of the lower mold core. By setting sealing protrusions and sealing grooves, a sealing structure is formed when the mold is closed, which can prevent the injection material from overflowing. By setting connectors and feed pipes, molten material can be guided into the mold cavity, ensuring smooth injection. By rotating the toggle ring, the position of the adjusting screw on the adjusting bolt surface can be adjusted, thereby adjusting the overall height of the device, making it more convenient to use. Attached Figure Description

[0016] Figure 1 This is a frontal three-dimensional structural diagram of the present invention; Figure 2This is a side-view perspective view of the three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the structure in the side cross-section of the present invention; Figure 4 This is a schematic diagram of the cross-section of the shrinkage groove in this invention; Figure 5 This is a schematic diagram of the lower mold core in this invention; Figure 6 for Figure 1 A schematic diagram of the structure at point A in the middle, magnified cross-section. Figure 7 for Figure 1 A structural schematic diagram of the enlarged cross-section at point B.

[0017] The components are as follows: 1. Base; 101. Liquid storage tank; 102. Drain valve; 103. Liquid filling pipe; 104. Condenser; 105. Pump body; 106. Water pipe; 107. Adjusting bolt; 108. Adjusting screw; 109. Support plate; 1010. Actuating ring. 2. Lower mold; 201. Mold cavity; 202. Shrinkage groove; 203. Limiting groove; 204. Rotating shaft; 205. Worm gear; 206. Threaded rod; 207. Threaded cylinder; 208. Limiting block; 209. Transmission rod; 2010. Worm gear; 2011. First spiral tube; 2012. Second spiral tube; 2013. Temperature sensor; 2014. First inlet pipe; 2015. First return pipe; 2016. Second inlet pipe; 2017. Second return pipe; 2018. Flow regulating valve; 2019. Connecting pipe; 2020. Knob; 3. Limiting bracket; 301. Upper mold; 302. Mounting frame; 303. Heat dissipation fins; 4. Lower mold core; 401. Sealing protrusion; 5. Upper mold core; 501. Sealing groove; 502. Connector; 6. Mounting holes; 7. Movable groove; 701. Flexible retractable rod; 702. Movable plate; 703. Mounting block; 704. Threaded cap; 705. Mounting bolt; 706. Top plate; 8. Feed pipe. Detailed Implementation

[0018] The technical solutions of the specific embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Specific implementation method 1: like Figure 1 , Figure 2 and Figure 3 As shown, a specific embodiment of the present invention provides an injection mold with efficient and uniform heat dissipation, including a base 1, a lower mold core 4 and an upper mold core 5. The lower mold 2 and a limiting frame 3 are fixedly connected to the top of the base 1. The upper mold 301 is slidably connected to the surface of the limiting frame 3. The bottom of the upper mold 301 is fixedly connected to the mounting frame 302. The lower mold 2 has a mold cavity 201 inside. The lower mold core 4 and the upper mold core 5 are respectively installed and connected in the mold cavity 201 and the mounting frame 302. A first spiral tube 2011 is provided on the inner side of the mold cavity 201, and a second spiral tube 2012 is provided at the bottom of the mold cavity 201. Multiple temperature sensors 2013 are fixedly connected to both the inner side and the bottom of the mold cavity 201. Multiple heat dissipation fins 303 are provided on the top of the upper mold 301. A liquid storage tank 101 is opened inside the base 1. A condenser 104 and a pump body 105 are fixedly connected to the side of the base 1. The input end of the condenser 104 is located on the inner side of the liquid storage tank 101, and the output end of the condenser 104 is fixedly connected to the pump body 105. At the inlet and outlet of the pump body 105, a water pipe 106 is fixedly connected. A first inlet pipe 2014 and a first return pipe 2015 are fixedly connected to the inlet and outlet of the first spiral tube 2011, respectively. A second inlet pipe 2016 and a second return pipe 2017 are fixedly connected to the inlet and outlet of the second spiral tube 2012, respectively. The inlet ends of the first inlet pipe 2014 and the second inlet pipe 2016 are fixedly connected to the surface of the water pipe 106. A connecting pipe 2019 is fixedly connected to the outlet of the first return pipe 2015 and the second return pipe 2017. The output end of the connecting pipe 2019 is located on the inner side of the liquid storage tank 101. Flow regulating valves 2018 are fixedly connected to the surfaces of both the first liquid inlet pipe 2014 and the second liquid inlet pipe 2016. By setting the first spiral pipe 2011, the sides of the mold cavity 201 can be cooled in a targeted manner to prevent uneven material shrinkage caused by excessively high sidewall temperatures. By setting the second spiral pipe 2012, bottom heat dissipation can be enhanced to prevent warping of the injection molded material due to excessively high bottom temperatures. By setting the heat dissipation fins 303, the heat dissipation area and air convection can be increased to assist in cooling. At the top of the mold, a temperature sensor 2013 and a flow regulating valve 2018 are installed to dynamically adjust the coolant flow rate, ensuring temperature uniformity and reducing product shrinkage or warping. When cooling the mold core, the pump 105 and condenser 104 operate, drawing out the coolant from the storage tank 101 and then flowing it through the water pipe 106, the first inlet pipe 2014 and the second inlet pipe 2016 into the first spiral pipe 2011 and the second spiral pipe 2012, thereby cooling the surface and bottom of the mold core.

[0020] according to Figure 3 and Figure 5As shown, a sealing protrusion 401 is fixedly connected to the top of the lower mold core 4, and a sealing groove 501 is opened at the bottom of the upper mold core 5. A connector 502 is provided at the top of the upper mold core 5, and a feed pipe 8 is installed and connected to the top of the connector 502. By setting the sealing protrusion 401 and the sealing groove 501, a sealing structure is formed when the mold is closed, which can prevent the injection material from overflowing. By setting the connector 502 and the feed pipe 8, the molten material can be guided into the mold cavity 201, which can ensure smooth injection.

[0021] according to Figure 4 , Figure 5 and Figure 6As shown, multiple mounting holes 6 are provided on the surface of both the lower mold core 4 and the upper mold core 5. Multiple movable grooves 7 are provided on the inner side of the mold cavity 201 and the inner side of the mounting frame 302. A movable plate 702 is slidably connected inside the movable groove 7. A mounting block 703 is fixedly connected to the side of the movable plate 702. One end of the mounting block 703 is snapped into the mounting hole 6. By setting the mounting hole 6 and the mounting block 703 to engage, the mold core can be quickly disassembled and assembled. The movable groove 7 can accommodate the elastic shrink rod 701 and the mounting block 703. The elastic shrink rod 701 is fixedly connected to the inner side of the movable groove 7. One end of the elastic shrink rod 701 is fixedly connected to the mounting hole 6. A threaded cap 704 is fixedly connected to the side of the movable plate 702, and a mounting bolt 705 is threadedly connected inside the movable groove 7. One end of the mounting bolt 705 is fixedly connected to a top plate 706, and the side of the top plate 706 overlaps the side of the movable plate 702. By setting an elastic contraction rod 701, the movable plate 702 can be pulled to move. When the mold core is detached, the mounting bolt 705 is rotated so that the top plate 706 no longer squeezes the movable plate 702. Under the action of the elastic contraction rod 701, the mounting block 703 can be detached from the mounting hole 6. After detachment, the mold core can be disassembled, and the mold cavity 2... A shrinkage groove 202 is provided at the bottom of the 01 internal cavity. A limiting groove 203 is provided on the inner side of the shrinkage groove 202. A rotating shaft 204 is tightly nested inside the bottom of the shrinkage groove 202 via a bearing. A threaded rod 206 is fixedly connected to the top of the rotating shaft 204. A threaded cylinder 207 is threadedly connected to the surface of the threaded rod 206. A limiting block 208 is fixedly connected to the surface of the threaded cylinder 207. The limiting block 208 is slidably connected in the limiting groove 203. By rotating the rotating shaft 204 and limiting it through the limiting groove 203 and the limiting block 208, the threaded cylinder 207 can be moved on the surface of the threaded rod 206. By moving the threaded cylinder 207, the lower mold core 4 is moved. During disassembly, the lower mold core 4 can be ejected from the mold cavity 201, making it easier to disassemble. A worm gear 205 is fixedly connected to the surface of the rotating shaft 204. A transmission rod 209 is tightly nested inside the shrinkage groove 202 via bearings. A worm 2010 is fixedly connected to the surface of the transmission rod 209. The worm gear 205 and the worm 2010 mesh with each other. A knob 2020 is fixedly connected to one end of the transmission rod 209. By setting the knob 2020, power can be provided for the rotation of the transmission rod 209. Through the meshing of the worm gear 205 and the worm 2010, the direction of force transmission can be changed, providing power for the rotation of the rotating shaft 204.

[0022] according to Figure 1 and Figure 7As shown, adjusting bolts 107 are fixedly connected to the four corners of the bottom of the base 1. Adjusting screws 108 are threadedly connected to the surface of the adjusting bolts 107. A support plate 109 is fixedly connected to the bottom of the adjusting screw 108. A toggle ring 1010 is fixedly connected to the surface of the adjusting screw 108. By rotating the toggle ring 1010, the position of the adjusting screw 108 on the surface of the adjusting bolts 107 can be adjusted, thereby adjusting the overall height of the device, making it more convenient to use. A liquid filling pipe 103 is provided on the top of the liquid storage tank 101. A drain valve 102 is fixedly connected to the side of the base 1. The input end of the drain valve 102 is located on the inner side of the liquid storage tank 101. By providing the drain valve 102, it is convenient for people to drain the liquid in the liquid storage tank 101.

[0023] Working principle: When installing the upper mold core 5, the upper mold core 5 is placed in the mounting frame 302. After placement, the mounting bolt 705 is rotated, and the movable plate 702 and the mounting block 703 can be moved through the top plate 706. The mounting block 703 can be engaged in the mounting hole 6, thus fixing the position of the upper mold core 5 in the mounting frame 302. Then, it is connected to the feed pipe 8 through the connector 502. After the connection is completed, the lower mold core 4 is installed. The lower mold core 4 is placed in the mold cavity 201, and then the mounting bolt 705 is rotated to make the mounting block 703 engage in the mounting hole 6, thus fixing the position of the lower mold core 4 in the mold cavity 201. After fixing, the device can be used. During injection molding, the pump 105 operates, drawing coolant from the reservoir 101. The coolant then flows through the water pipe 106, the first inlet pipe 2014, and the second inlet pipe 2016 into the first spiral pipe 2011 and the second spiral pipe 2012. The first spiral pipe 2011 provides targeted cooling to the sides of the mold cavity 201, preventing uneven material shrinkage due to excessively high sidewall temperatures. The second spiral pipe 2012 enhances bottom heat dissipation, preventing warping of the injection molded material due to excessively high bottom temperatures. This allows for heat dissipation and cooling of the mold core's surface and bottom. Simultaneously, the condenser 104 operates, cooling the returning high-temperature coolant and maintaining the circulation efficiency of the cooling system. Finally, under the action of the temperature sensor 2013 and the flow regulating valve 2018, the coolant flow rate can be dynamically adjusted to ensure temperature uniformity and reduce product shrinkage or warping. When disassembling the lower mold core 4, the mounting bolt 705 is rotated to detach the mounting block 703 from the mounting hole 6. After detachment, the knob 2020 is rotated to rotate the transmission rod 209 and the worm gear 2010. Through the meshing of the worm gear 2010 and the worm wheel 205, the rotating shaft 204 can be rotated. Through the limiting groove 203 and the limiting block 208, the threaded cylinder 207 can be moved on the surface of the threaded rod 206. Through the movement of the threaded cylinder 207, the lower mold core 4 can be ejected from the mold cavity 201 when disassembling the lower mold core 4, thus facilitating the disassembly of the lower mold core 4.

[0024] Although specific embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these specific embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An injection mold with efficient and uniform heat dissipation, comprising a base (1), a lower mold core (4), and an upper mold core (5), characterized in that: The base (1) is fixedly connected to the top of the lower mold (2) and the limiting frame (3). The upper mold (301) is slidably connected to the surface of the limiting frame (3). The upper mold (301) is fixedly connected to the bottom of the upper mold (301). The lower mold (2) has a mold cavity (201) inside. The lower mold core (4) and the upper mold core (5) are respectively installed and connected in the mold cavity (201) and the mounting frame (302). The mold cavity (201) has a first spiral tube (2011) on its inner side and a second spiral tube (2012) on its inner bottom. Multiple temperature sensors (2013) are fixedly connected to both the inner side and bottom of the mold cavity (201). Multiple heat dissipation fins (303) are provided on the top of the upper mold (301). A liquid storage tank (101) is opened inside the base (1). A condenser (104) and a pump body (105) are fixedly connected to the side of the base (1). The input end of the condenser (104) is located on the inner side of the liquid storage tank (101). The output end of the condenser (104) is fixedly connected to the input end of the pump body (105). A water pipe (106) is fixedly connected to the output end of the pump body (105). The first inlet pipe (2014) and the first return pipe (2015) are fixedly connected to the input and output ends of the spiral tube (2011), respectively. The second inlet pipe (2016) and the second return pipe (2017) are fixedly connected to the input and output ends of the second spiral tube (2012), respectively. The input ends of the first inlet pipe (2014) and the second inlet pipe (2016) are fixedly connected to the surface of the water pipe (106). The output ends of the first return pipe (2015) and the second return pipe (2017) are fixedly connected to the connecting pipe (2019). The output end of the connecting pipe (2019) is located on the inner side of the liquid storage tank (101). The flow regulating valve (2018) is fixedly connected to the surface of both the first inlet pipe (2014) and the second inlet pipe (2016).

2. The injection mold with efficient and uniform heat dissipation according to claim 1, characterized in that: The lower mold core (4) is fixedly connected to a sealing protrusion (401) at the top, and the upper mold core (5) is provided with a sealing groove (501) at the bottom. The upper mold core (5) is provided with a connector (502) at the top, and a feed pipe (8) is installed at the top of the connector (502).

3. The injection mold with efficient and uniform heat dissipation according to claim 1, characterized in that: Multiple mounting holes (6) are provided on the surface of the lower mold core (4) and the surface of the upper mold core (5), and multiple movable grooves (7) are provided on the inner side of the mold cavity (201) and the inner side of the mounting frame (302).

4. The injection mold with efficient and uniform heat dissipation according to claim 3, characterized in that: An elastic retractable rod (701) is fixedly connected to the inner side of the movable groove (7). One end of the elastic retractable rod (701) is fixedly connected to a movable plate (702). An installation block (703) is fixedly connected to the side of the movable plate (702). One end of the installation block (703) is snapped into the installation hole (6). A threaded cap (704) is fixedly connected to the inner side of the movable groove (7). An installation bolt (705) is threadedly connected inside the threaded cap (704). One end of the installation bolt (705) is fixedly connected to a top plate (706). The side of the top plate (706) overlaps the side of the movable plate (702).

5. The injection mold with efficient and uniform heat dissipation according to claim 1, characterized in that: A shrinkage groove (202) is provided at the bottom of the mold cavity (201). A limiting groove (203) is provided on the inner side of the shrinkage groove (202). A rotating shaft (204) is tightly nested in the bottom of the shrinkage groove (202) through a bearing. A threaded rod (206) is fixedly connected to the top of the rotating shaft (204). A threaded cylinder (207) is threadedly connected to the surface of the threaded rod (206). A limiting block (208) is fixedly connected to the surface of the threaded cylinder (207). The limiting block (208) is slidably connected in the limiting groove (203).

6. The injection mold for efficient and uniform heat dissipation according to claim 5, characterized in that: A worm gear (205) is fixedly connected to the surface of the rotating shaft (204). A transmission rod (209) is tightly nested inside the inner side of the shrinkage groove (202) through a bearing. A worm (2010) is fixedly connected to the surface of the transmission rod (209). The worm gear (205) and the worm (2010) mesh with each other. A knob (2020) is fixedly connected to one end of the transmission rod (209).

7. The injection mold with efficient and uniform heat dissipation according to claim 1, characterized in that: The base (1) has four fixedly connected adjustment bolts (107) at the bottom corners. The adjustment bolts (107) are threaded with adjustment cylinders (108). The bottom of the adjustment cylinders (108) is fixedly connected with a support plate (109). The adjustment cylinders (108) are fixedly connected with a toggle ring (1010).

8. The injection mold with efficient and uniform heat dissipation according to claim 7, characterized in that: The top of the liquid storage tank (101) is provided with a liquid filling pipe (103), and the side of the base (1) is fixedly connected with a drain valve (102). The input end of the drain valve (102) is located on the inside side of the liquid storage tank (101).

Citation Information

Patent Citations

  • Injection mold capable of quickly replacing mold core

    CN219968643U