A rapid cooling plastic processing mold

Abstract

The present invention proposes a fast-cooling plastic processing mold, which relates to the technical field of injection molding equipment. The technical solution is to provide a fast-cooling plastic processing mold, including an upper mold base and a lower mold base, wherein the upper mold base is provided with an upper mold, and the lower mold base is provided with a lower mold, wherein the upper mold base is provided with a first mounting groove and a cooling member installed in the first mounting groove, and a heat conducting member is provided on the outer side of the upper mold. The purpose is that through the cooperation between the heating member, the lower mold, the upper mold, the heat conducting member, the cooling member and the first mounting groove, after the upper mold and the lower mold are fitted together, the high temperature of the lower mold can be transferred to the upper mold in a limited manner, so that the upper mold quickly rises to between 250 degrees Celsius and 300 degrees Celsius, so that the lower mold and the upper mold quickly heat up, and then the high temperature of the upper mold is initially reduced by using the heat conducting member, and the cooling member intervenes through the first mounting groove to quickly reduce the temperature of the upper mold and the lower mold, thereby improving the qualified rate of plastic products.

Description

Technical Field

[0001] The present application relates to the technical field of injection molding, and in particular to a rapid cooling plastic processing mold. Background Art

[0002] Injection molding machines are commonly used in plastics processing. Their principle is to heat plastic pellets into a liquid and inject it into a mold, enabling manufacturers to rapidly mass-produce plastic products in a short period of time to meet market demand. Conventional plastic molds offer precise dimensions, smooth product surfaces, consistent quality, excellent interoperability, and ease of automated production. Injection molds offer high production efficiency, enabling the production of complex and high-precision plastic products while ensuring consistent product quality, significantly reducing production costs.

[0003] When producing highly transparent or pure black plastic products with mirror reflection, high requirements are required for the temperature control of the mold. Transparent parts are difficult to open with conventional injection molding equipment because transparent parts have high requirements and cannot have any defects such as spots, pores, black spots and discoloration. The requirements for injection molding and molds are very high. When the plastic liquid enters the gap between the molds, the mold needs to maintain a high temperature. Low temperature will cause the plastic liquid to solidify quickly when it just contacts the mold surface, resulting in uneven solidification of the plastic parts. At the same time, it will be difficult to flow, resulting in an increase in the rejection rate of plastic parts. If the cooling temperature drops too slowly, the solidification speed of the plastic parts will slow down, which will cause drawing when demolding, thereby reducing production speed and increasing the rejection rate of plastic parts.

[0004] Regarding the above-mentioned technologies and treatment measures, the inventors believe that the following defects exist: the current existing cooling technologies usually use water cooling and air cooling, neither of which can quickly cool the mold in a short period of time. Rapid cooling will cause the plastic parts themselves to shrink and crack due to the rapid drop in temperature. Summary of the Invention

[0005] In order to solve the above problems, the present application provides a fast-cooling plastic processing mold, which can quickly cool and shape plastic products while ensuring product quality.

[0006] This application provides a rapid cooling plastic processing mold, which adopts the following technical solutions:

[0007] The lower mold base includes a lower mold and a heating element for providing a heat source for the lower mold;

[0008] An upper die base, wherein an upper die is provided in the upper die base, the upper die of the upper die base is located on a side of the lower die close to the lower die base, the upper die base can be matched with the lower die base so that the upper die fits the lower die to form a cavity, and an inlet leading to the inner side of the upper die is opened on the upper die base;

[0009] A heat conducting member, the heat conducting member being located outside the upper mold in the upper mold base;

[0010] A cooling member is provided on the upper mold base with at least one first mounting groove, and each first mounting groove is provided with the cooling member. When the upper mold is attached to the lower mold to form a cavity, each cooling member is against the heat conducting member.

[0011] In some embodiments of the present invention, at least one first heat transfer member is provided on the heat conducting member, and each first heat transfer member is provided with a first clearance groove. The cooling member includes an intervention plate and a first temperature transfer portion. The first temperature transfer portion is connected to the bottom of the intervention plate. When the upper mold is attached to the lower mold to form a cavity, the first temperature transfer portion of each cooling member enters the first clearance groove on the corresponding first temperature transfer member.

[0012] In some embodiments of the present invention, each first temperature transfer member is provided with a second temperature transfer portion, and the lower mold is provided with at least one second clearance groove. When the upper mold is attached to the lower mold to form a cavity, the second temperature transfer portion on each first temperature transfer member enters the corresponding second clearance groove.

[0013] In some embodiments of the present invention, at least one second temperature transfer member is further included, each second temperature transfer member is located between the outer side of the upper mold and the inner side of the heat conducting member, each second temperature transfer member is provided with a third temperature transfer portion, the lower mold is provided with at least one limiting groove, each limiting groove is provided with a third clearance groove, when the upper mold is attached to the lower mold to form a cavity, each second temperature transfer member is offset against the limiting groove, and the third temperature transfer portion on each second temperature transfer member enters the corresponding third clearance groove.

[0014] In some embodiments of the present invention, a copper film layer is provided on the surface of each third recess.

[0015] In some embodiments of the present invention, the heating element is a heating coil.

[0016] In some embodiments of the present invention, the cooling element is a semiconductor.

[0017] In some embodiments of the present invention, the temperature conducting member is a temperature conducting tube.

[0018] In some embodiments of the present invention, a second mounting groove is provided in the lower mold base, the lower mold is installed in the second mounting groove, the heating element is installed on the outside of the lower mold in the second mounting groove, a heat conductor is provided between the heating element and the lower mold, and the heating element is connected to the heat conductor.

[0019] In some embodiments of the present invention, an insulation component is further included, which includes an insulation plate, which is located in the second mounting groove and is sleeved on the outside of the heating element; a sealing member, which is located at the opening of the second mounting groove, and the inner side of the sealing member is in contact with the outer edge surface of the top of the upper mold, and the outer side of the sealing member is in contact with the top edge surface of the second mounting groove.

[0020] In some embodiments of the present invention, a material delivery pipe is further included, one end of which is connected to the feed port of the upper mold, and a threaded material delivery groove is opened on the inner side of the material delivery pipe.

[0021] In some embodiments of the present invention, a threaded liquid inlet pipe is provided on the outer surface of the feed pipe.

[0022] In some embodiments of the present invention, a first temperature-insulating layer is provided on the outside of the feed pipe, and the threaded liquid inlet pipe is located between the outside of the feed pipe and the inside of the first temperature-insulating layer.

[0023] In some embodiments of the present invention, at least one connecting member is further included, and at least one fourth mounting groove is provided on the upper mold. One end of each connecting member is installed in the corresponding fourth mounting groove on the upper mold, and the other end of each connecting member is connected to the upper mold base. A second thermal insulation layer is provided on the outer surface of each fourth mounting groove.

[0024] In summary, this application has the following beneficial technical effects:

[0025] The present invention cooperates with the heating element, the lower mold, the upper mold, the heat conducting element, the cooling element and the first mounting groove to rapidly increase the temperature of the lower mold by utilizing a magnetic field. After the upper mold and the lower mold are bonded together, the high temperature of the lower mold can be transferred to the upper mold in a limited manner, causing the lower mold to rapidly rise to between 250 degrees Celsius and 300 degrees Celsius. After the plastic liquid enters, the upper mold can rise to 200 degrees Celsius to 250 degrees Celsius in a short period of time by relying on the high temperature of the plastic liquid and the lower mold, and steadily increase according to the injection amount of a single piece of plastic liquid. During cooling, the heating element is stopped and refrigerant is input and flows into the heat conducting element. The refrigerant can initially reduce the high temperature of the upper mold in a limited manner and absorb the high temperature of the lower mold through the upper mold. When the temperature of the upper mold and the lower mold drops below 200 degrees Celsius, the cooling element begins to intervene through the first mounting groove, causing the temperature of the upper mold and the lower mold to drop rapidly, so that they can be quickly cooled without affecting the qualified rate of the plastic products. At the same time, the lower mold and the upper mold can be rapidly heated by the heating element, thereby improving the qualified rate of the plastic products.

[0026] The present invention cooperates between the insulation board, the seal, the second mounting groove and the heating element, and the inner wall of the insulation board and the bottom surface of the seal are covered with a layer of aerogel insulation material and polymer foam resin insulation cotton. The aerogel insulation material is based on nano-silica aerogel. It is a soft, inorganic, environmentally friendly and easy-to-construct insulation material. Its conventional temperature resistance is 150°C, and the temperature resistance of the insulation cotton after composite compression can reach 200~280°C. The polymer foam resin insulation cotton has excellent thermal insulation performance, can withstand high temperatures, and has good anti-aging performance and a long service life. The heat inside it can repeatedly reflect the high temperature generated by the heating element, thereby improving the internal heat utilization rate, and then the lower mold can be quickly heated up, reducing the processing preheating time, making it more usable and improving the speed and quality of product production. The seal and the insulation board can be installed in the second mounting groove by screws, and can also be disassembled and replaced according to different mold disassembly, so that the lower mold can be repeatedly used, thereby improving the practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of the embodiment of the present application;

[0028] Figure 2 This is a schematic diagram of the split structure of the upper die base in the embodiment of the present application;

[0029] Figure 3 This is a schematic diagram of the internal structure of the feed pipe in the embodiment of the present application;

[0030] Figure 4 This is a schematic diagram of the cross-sectional structure of the upper die base in the embodiment of the present application;

[0031] Figure 5 This is a structural diagram of the upper mold and the lower mold base in the embodiment of the present application;

[0032] Figure 6 This is a schematic diagram of the planing structure of the lower die base in the embodiment of the present application;

[0033] Figure 7 This is a schematic diagram of the explosion structure of the upper die base in the embodiment of the present application;

[0034] Figure 8 This is a schematic diagram of the explosion structure of the lower die base in the embodiment of the present application;

[0035] Figure 9 This is a schematic diagram of the explosion structure of the bottom of the lower die base in the embodiment of the present application;

[0036] Figure 10 This is a schematic diagram of the explosion structure of the upper mold and the lower mold in the embodiment of the present application;

[0037] Figure 11Schematic diagram of the magnetic field coverage of the heating element and the heat conduction method between the temperature conducting element and the lower mold in the embodiment of the present application;

[0038] Figure 12 This is a schematic diagram of the horizontal cross-sectional structure of the temperature conducting member in the embodiment of the present application;

[0039] Figure 13 This is a schematic diagram of a state in which the upper mold and the lower mold do not form a cavity in the embodiment of the present application;

[0040] Figure 14 It is a schematic diagram of the state in which the upper mold and the lower mold form a cavity in an embodiment of the present application.

[0041] Figure markings: 1-upper mold base, 2-lower mold base, 3-upper mold, 4-lower mold, 5-first mounting groove, 6-cooling part, 7-heat conducting part, 8-heating part, 9-feeding port, 10-feeding pipe, 11-threaded liquid inlet pipe, 12-first temperature insulation layer, 13-fourth mounting groove, 14-connecting part, 15-second temperature transfer part, 16-third temperature transfer part, 17-third give way groove, 18-intervention plate, 19-first temperature transfer part, 20-first temperature transfer part, 21-second temperature transfer part, 22-second give way groove, 23-second mounting groove, 24-mounting hole, 25-heat conducting part, 26-thermal insulation board, 27-fixing frame, 28-sealing part, 29-screw. DETAILED DESCRIPTION

[0042] Example

[0043] The following is combined with Figure 1-11 This application is described in further detail.

[0044] A fast cooling plastic processing mold described in an embodiment of the present application includes a lower mold base 2, wherein the lower mold base 2 is provided with a lower mold 4 and a heating element 8 for providing a heat source for the lower mold 4, the lower mold 4 is located on the top outer surface of the lower mold base 2, the heating element 8 is a heating coil, and the heating coil as a whole is a high-frequency induction heating device, which can use a magnetic field to quickly increase the temperature of the lower mold 4; an upper mold base 1, wherein the upper mold base 1 is provided with an upper mold 3, the upper mold 3 of the upper mold base 1 is located on the side of the lower mold 4 close to the lower mold base 2, and the upper mold 3 is located on the bottom outer surface of the upper mold base 1, the upper mold base 1 can be matched with the lower mold base 2 so that the upper mold 3 is attached to the lower mold 4 to form a cavity, and the upper mold base 1 is provided with an inlet to the inner side of the upper mold 3 The material inlet 9 is used to input plastic liquid into the cavity between the upper mold 3 and the lower mold 4. In this embodiment, after the upper mold 3 and the lower mold 4 are fitted together, when the plastic liquid is injected into the cavity between the upper mold 3 and the lower mold 4, the lower mold 4 is heated by the heating element 8. The high temperature of the lower mold 4 can be transferred to the upper mold 3 in a limited manner, causing the upper mold 3 to quickly rise to between 250 degrees Celsius and 300 degrees Celsius. After the plastic liquid enters, the upper mold 3 can rise to 200 degrees Celsius to 250 degrees Celsius in a short period of time by relying on the high temperature of the plastic liquid and the lower mold 4, and steadily increase according to the injection amount of a single piece of plastic liquid. This can prevent the plastic liquid in the cavity between the upper mold 3 and the lower mold 4 from cooling prematurely and affecting the product quality, thereby improving the qualified rate of plastic products;

[0045] The heat conducting member 7 is located on the outer side of the upper mold 3 in the upper mold base 1, and the heat conducting member 7 is a heat conducting tube. The heat conducting member 7 is fixedly connected to the outer surface of the upper mold 3, and when the upper mold 3 is attached to the lower mold 4 to form a cavity, the upper mold base 1 and the lower mold base 2 are not completely close to each other. After the injected plastic liquid completely fills the cavity between the upper mold 3 and the lower mold 4, it needs to be cooled to form the product. During cooling, the heating member 8 is stopped and connected to the liquid inlet and liquid outlet on the heat conducting member 7 through the infusion pipe and the discharge pipe respectively. The refrigerant is input and flows into the heat conducting member 7 through the infusion pipe by a pump. The refrigerant in the heat conducting member 7 is discharged from the discharge pipe and cooled again. The above cycle is repeated to cool using the heat conducting member 7. The refrigerant in the heat conducting member 7 can effectively reduce the high temperature of the upper mold 3, and then absorb the high temperature of the lower mold 4 through the upper mold 3, thereby achieving preliminary cooling of the upper mold 3 and the lower mold 4 and the plastic liquid therein.

[0046] Cooling member 6, at least one first mounting groove 5 is provided on the upper mold base 1, and the cooling member 6 is installed in each first mounting groove 5. When the upper mold 3 is attached to the lower mold 4 to form a cavity, each cooling member 6 is against the heat conducting member 7. The first mounting groove 5 provides an installation space for the cooling member 6 to be installed in the upper mold base 1. In addition, when the cooling member 6 is working, the first mounting groove 5 can serve as a heat dissipation channel to quickly discharge the heat generated by the cooling member 6. The cooling member 6 is a semiconductor. When the cooling member 6 is needed to cool the plastic liquid in the upper mold 3 and the lower mold 4, the upper mold 3 and the lower mold 4 and the plastic liquid therein are first cooled by the heat conducting member 7. When the temperature of the upper mold 3 and the lower mold 4 drops below 200 degrees Celsius, the cooling member 6 is energized, and the cooling member 6 is intervened in the upper mold 3 through the first mounting groove 5 to cool the upper mold 3 However, since the upper mold 3 and the lower mold 4 are in contact with each other, the upper mold 3 absorbs the heat of the lower mold 4 while the temperature is reduced. After the cooling member 6 is energized, it can quickly conduct the heat of the cooling surface to the heat dissipation surface, thereby indirectly cooling the lower mold 4. The cooling member 6 begins to intervene through the first mounting groove 5, causing the temperature of the upper mold 3 and the lower mold 4 to drop rapidly, so that it can be quickly cooled without affecting the qualified rate of the plastic products. It should be noted that in this embodiment, the upper mold 3 has four first mounting grooves 5 with the feed port 9 as the center and at equal angles, but this is not a limitation of the present invention. The corresponding number of first mounting grooves 5 can be selected according to actual needs, and the corresponding first mounting grooves 5 can be selected at the corresponding positions of the upper mold 3 according to needs. In addition, the cooling member 6 can be installed in the corresponding first mounting groove 5 in a fixed or detachable manner according to needs.

[0047] As a preferred embodiment, at least one first temperature transfer member 20 is provided on the temperature conducting member 7, and the first temperature transfer member 20 is an auxiliary heat transfer block. The first temperature transfer member 20 is fixedly connected to the outer side of the temperature conducting member 7, and each first temperature transfer member 20 is provided with a first clearance groove. The cooling member 6 includes an intervention plate 18 and a first temperature transfer portion 19, and the first temperature transfer portion 19 is fixedly connected to the bottom of the intervention plate 18. The first temperature transfer portion 19 is a cooling rod arranged at the bottom of the intervention plate 18. When the upper mold 3 is attached to the lower mold 4 to form a cavity, the first temperature transfer portion 19 of each cooling member 6 enters the first clearance groove on the corresponding first temperature transfer member 20, which can increase the contact area between the cooling member 6 and the temperature conducting member 7, and further improve the cooling effect of the cooling member 6 on the upper mold 3.

[0048] As a preferred embodiment, each first temperature transfer member 20 is provided with a second temperature transfer portion 21, and the second temperature transfer portion 21 is two intervention rods arranged at the bottom of the first temperature transfer member 20. The lower mold 4 is provided with at least one second clearance groove 22. When the upper mold 3 is attached to the lower mold 4 to form a cavity, the second temperature transfer portion 21 on each first temperature transfer member 20 enters the corresponding second clearance groove 22, which can further increase the contact area between the temperature conducting member 7 and the lower mold 4, and further improve the cooling effect of the lower mold 4. The first temperature transfer member 20 and the cooling member 6 are both made of copper, and a layer of graphene is covered on the surface of the first temperature transfer member 20, the cooling member 6, the first clearance groove and the second clearance groove 22. Graphene is a single-layer carbon atomic surface material peeled off from graphite by a special process, and has a honeycomb-shaped two-dimensional planar structure composed of a single layer of carbon atoms tightly arranged in a regular hexagonal structure. The room temperature thermal conductivity of a single layer of suspended graphene can reach 3000~5300W / (m·K), so that it can quickly absorb the heat transferred from the upper mold 3 through the heat conducting member 7 and the lower mold 4 through the second give way groove 22, so that it can be cooled quickly. It should be noted that in this embodiment, four first heat transfer members 20 are evenly distributed along the outer side of the heat conducting member 7, and four second give way grooves 22 are correspondingly opened on the lower mold 4, but this is not a limitation of the present invention. According to the actual cooling effect required, a corresponding number of first heat transfer members 20 can be selected on the outer side of the heat conducting member 7, and on this basis, a corresponding number of second give way grooves 22 can be opened on the lower mold 4.

[0049] As a preferred embodiment, it also includes at least one second heat transfer member 15, each second heat transfer member 15 is located between the outer side of the upper mold 3 and the inner side of the heat conducting member 7, each second heat transfer member 15 is provided with a third heat transfer portion 16, and the lower mold 4 is provided with at least one limiting groove, and each limiting groove is provided with a third clearance groove 17. When the upper mold 3 is attached to the lower mold 4 to form a cavity, each second heat transfer member 15 is offset against the limiting groove, and the third temperature transfer portion 16 on each second heat transfer member 15 enters the corresponding third clearance groove 17. The second heat transfer member 15 is a convex block arranged between the outer side of the upper mold 3 and the inner side of the heat conducting member 7, and the third temperature transfer portion 16 is a convex block head extending from the convex block toward the lower mold 4. When the upper mold 3 is attached to the lower mold 4 to form a cavity, the third temperature transfer portion 16 is offset against the limiting groove, and the limiting groove is used to limit the third temperature transfer portion 16 to ensure The shape of the mold-preserving cavity, the third clearance groove 17 is a groove opened on the limit groove of the lower mold 4 to cooperate with the second heat transfer member 15. During cooling, the third heat transfer portion 16 on each second heat transfer member 15 is located in the third clearance groove 17 on the lower mold 4, which can increase the contact area between the heat conducting member 7 and the lower mold 4, thereby increasing the speed at which the high temperature of the lower mold 4 is transferred to the upper mold 3, further improving the cooling efficiency and molding effect of the plastic. It should be noted that in this embodiment, four second heat transfer members 15 are evenly distributed along the outer side of the heat conducting member 7, and four limit grooves and corresponding third clearance grooves 17 are opened on the lower mold 4. This setting method cannot be regarded as a limitation of the present invention. According to the actual cooling effect required, a corresponding number of second heat transfer members 15 can be selected to be set on the outer side of the heat conducting member 7, and on this basis, a corresponding number of third clearance grooves 17 are opened on the lower mold 4.

[0050] As a preferred embodiment, a copper film layer is provided on the surface of each third relief groove 17, which can further improve the heat transfer efficiency.

[0051] As a preferred embodiment, a second mounting groove 23 is provided in the lower mold base 2, the lower mold 4 is installed in the second mounting groove 23, the heating element 8 is installed on the outside of the lower mold 4 in the second mounting groove 23, and a heat conductor 25 is provided between the heating element 8 and the lower mold 4. The heating element 8 is connected to the heat conductor 25, and the heat conductor 25 is a copper annular plate. The heat conductor 25 is mounted on the outside of the lower mold 4 and can quickly conduct the high temperature brought by the magnetic field generated by the heating element 8, thereby helping the lower mold 4 to heat up quickly.

[0052] As a preferred embodiment, it also includes an insulation component, which includes an insulation plate 26, which is an annular asbestos plate. The insulation plate 26 is located in the second mounting groove 23 and is sleeved on the outside of the heating element 8. The insulation plate 26 is installed in the second mounting groove 23 by a sliding connection; a sealing member 28, which is located at the opening of the second mounting groove 23, and the inner side of the sealing member 28 is attached to the outer side of the top of the upper mold 3, and the outer side of the sealing member 28 is attached to the top of the second mounting groove 23. The sealing member 28 is an annular sealing plate that seals the outer side of the upper mold 3 and the second mounting groove 23. The inner wall of the insulation plate 26 and the bottom surface of the sealing member 28 It is covered with a layer of aerogel insulation material and polymer foam resin insulation cotton. The aerogel insulation material is based on nano-silica aerogel. It is a soft, inorganic, environmentally friendly and easy-to-construct insulation material. Its conventional temperature resistance is 150°C. The temperature resistance of the insulation cotton after composite compression can reach 200~280°C. The polymer foam resin insulation cotton has excellent thermal insulation performance, can withstand high temperatures, and has good anti-aging performance and a long service life. The heat inside it can be repeatedly reflected, thereby improving the internal heat utilization rate, and then the lower mold 4 can be heated quickly, reducing the processing preheating time, making it more usable and improving the speed and quality of product production.

[0053] As a preferred embodiment, it also includes a fixing frame 27, which is slidably connected to the inner wall of the second mounting groove 23, and the fixing frame 27 is fixedly connected to the insulation plate 26. The lower mold base 2 is provided with four mounting holes 24 equidistantly distributed in a circular array. The fixing frame 27 is fixedly installed on the lower mold base 2 by screws 29 to fix the insulation plate 26. The screws 29 can pass through the seal 28 and the fixing frame 27 in turn to fix them, further improving the structural stability. The method of fixing the fixing frame 27 and the seal 28 with screws 29 can also select different molds to be disassembled and replaced according to needs, so that the lower mold 4 can be reused, thereby improving the practicality of this product.

[0054] As a preferred embodiment, it also includes a feed pipe 10, one end of which is connected to the feed port 9 of the upper mold 3, and a threaded feed groove is provided on the inside of the feed pipe 10. The heated plastic liquid can be injected into the upper mold 3 and the lower mold 4 through the feed port 9 through the threaded feed groove. The feed pipe 10 uses the threaded feed groove to increase the path and time of the hot plastic liquid flowing in the pipe, ensuring that the plastic liquid in the feed pipe 10 can be fully heated, avoiding the temperature drop and solidification of the plastic liquid during the flow process, which affects the quality of the finished product.

[0055] As a preferred embodiment, a threaded liquid inlet pipe 11 is provided on the outer surface of the feed pipe 10, and the threaded liquid inlet pipe 11 is fixedly connected to the outer surface of the feed pipe 10. High-temperature lubricating oil is transported through the threaded liquid inlet pipe 11, which can heat the plastic liquid inside the feed pipe 10. The shape of the threaded liquid inlet pipe 11 is utilized to increase the flow path and time of the high-temperature lubricating oil. In conjunction with the threaded feed groove opened on the inner side of the feed pipe 10, the basic time between the high-temperature lubricating oil in the threaded liquid inlet pipe 11 and the plastic liquid in the feed pipe 10 is increased, further reducing the possibility of solidification of the plastic liquid during flow, thereby ensuring the quality of the finished product. A copper thermal conductor 7 can also be selected as needed to improve the heat transfer efficiency when the heat from the threaded liquid inlet pipe 11 is transferred to the thermal conductor 7.

[0056] As a preferred embodiment, a first thermal insulation layer 12 is provided on the outside of the feed pipe 10, and the threaded liquid inlet pipe 11 is located between the outside of the feed pipe 10 and the inside of the first thermal insulation layer 12. The first thermal insulation layer 12 is mainly ceramic fiber, and a nano-airbag reflective layer is provided on its inner wall. It adopts airbag insulation, which can effectively isolate heat energy. Its surface and inner layers are both special mirror aluminum foil multi-layer composite materials. The middle layer adopts polyethylene as the basic production of airbag shell. The airbag is filled with nanoporous structure SiO2 and inert gas, which has very excellent thermal insulation performance, thereby improving the utilization rate of internal heat.

[0057] As a preferred embodiment, it also includes at least one connecting member 14, and at least one fourth mounting groove 13 is opened on the upper mold 3. One end of each connecting member 14 is installed in the corresponding fourth mounting groove 13 on the upper mold 3, and the other end of each connecting member 14 is connected to the upper mold base 1. A second thermal insulation layer is provided on the outer surface of each fourth mounting groove 13. The connecting member 14 is a threaded rod, and the fourth mounting groove 13 opened on the upper mold 3 is a threaded groove. The upper mold 3 is conveniently and quickly installed on the upper mold base 1 through the connecting member 14. The second thermal insulation layer is an asbestos layer, which can effectively reduce the heat of the upper mold 3 from leaking to the upper mold base 1 through the connecting member 14. It should be noted that in this embodiment, four fourth mounting grooves 13 are opened at equal angles on the upper mold 3 with the feed port 9 as the center, and four corresponding connecting members 14 are used. However, this is not a limitation of the present invention. The corresponding number of fourth mounting grooves 13 and the opening position of the fourth mounting groove 13 can be selected on the upper mold 3 according to the actual connection and fixing effect required, and the corresponding number of connecting members 14 can be selected on this basis.

[0058] The implementation principle of the embodiment of the present application is as follows: when the device is needed, the upper mold base 1 is moved downward to make the upper mold 3 and the lower mold 4 fit together, and then the heating element 8 is turned on to quickly heat the lower mold 4. The high temperature of the lower mold 4 can be transferred through the contact between the lower mold 4 and the upper mold 3. In addition, the upper mold 3 can be heated by the second heat transfer element 15 and the heat conducting element 7. Then, the plastic liquid is injected between the upper mold 3 and the lower mold 4 through the feed port 9. After the plastic liquid fills the space between the upper mold 3 and the lower mold 4, the heating element 8 is turned off and the heat conducting element 7 is heated. The refrigerant begins to circulate, causing the upper mold 3 to begin to cool down initially. Due to the limited cooling speed of liquid water cooling, the high temperature of the upper mold 3 and the lower mold 4 can only be slowly and steadily reduced to below 200 degrees Celsius. When the temperature falls below 200 degrees Celsius, the cooling member 6 is pushed downward so that the cooling member 6 contacts the heat conducting member 7 in the first mounting groove 5, and the first temperature transfer portion 19 is inserted into the second yield groove 22 of the first temperature transfer member 20, so that the liquid temperature in the heat conducting member 7 drops rapidly, so that the upper mold base 1 and the lower mold base 2 can be cooled quickly, thereby cooling the plastic liquid therein.

[0059] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A rapid cooling plastic processing mold, characterized by: The invention comprises a lower die base (2), wherein a second mounting groove (23) is provided in the lower die base (2); a lower die (4) and a heating element (8) for providing a heat source for the lower die (4) are provided in the second mounting groove (23); a heat conducting element (25) is located between the heating element (8) and the lower die (4); the heating element (8) is a high-frequency heating coil; the heat conducting element (25) is a copper annular plate and is sleeved on the outer side of the lower die (4); the second mounting groove (23) is also provided with a spacer. A heat insulation component, wherein the heat insulation component comprises a heat insulation plate (26) sleeved on the outside of the heating element (8), the inner wall of the heat insulation plate (26) is covered with aerogel heat insulation material, and the space between the heat insulation plate (26) and the inner wall of the second installation groove (23) is filled with polymer foam resin heat insulation cotton; a sealing member (28) is provided at the opening of the second installation groove (23), the inner side of the seal member (28) is in contact with the outer side edge surface of the top of the upper mold (3), and the outer side is in contact with the top edge surface of the second installation groove (23); An upper mold base (1), wherein an upper mold (3) is provided in the upper mold base (1), and the upper mold (3) of the upper mold base (1) is located on the side of the lower mold (4) close to the lower mold base (2), and the upper mold base (1) can be matched with the lower mold base (2) so that the upper mold (3) fits the lower mold (4) to form a cavity, and an inlet (9) leading to the inner side of the upper mold (3) is provided on the upper mold base (1); a feed pipe (10) is also included, one end of the feed pipe (10) is connected to the inlet (9), a threaded feed trough is provided on the inner side, a threaded liquid inlet pipe (11) is provided on the outer surface, and the outer side of the feed pipe (10) is wrapped with a first thermal insulation layer (12), and the threaded liquid inlet pipe (11) is located between the feed pipe (10) and the first thermal insulation layer (12); A heat conducting member (7), the heat conducting member (7) is located outside the upper mold (3) in the upper mold base (1); the heat conducting member (7) is a heat conducting tube; it also includes at least one first heat transfer member (20) and at least one second heat transfer member (15), the first heat transfer member (20) is fixed to the outside of the heat conducting member (7), each first heat transfer member (20) is provided with a first clearance groove and a second heat transfer portion (21); the second heat transfer member (15) is located between the outside of the upper mold (3) and the inside of the heat conducting member (7), each second heat transfer member (15) is provided with a third heat transfer portion (16); the lower mold (4) is provided with a second clearance groove (22) adapted to the second heat transfer portion (21), a limiting groove adapted to the second heat transfer member (15), and a third clearance groove (17) adapted to the third heat transfer portion (16), the surface of the third clearance groove (17) is provided with a copper film layer; A cooling member (6), wherein at least one first mounting groove (5) is provided on the upper mold base (1), and each first mounting groove (5) is provided with the cooling member (6). When the upper mold (3) is fitted to the lower mold (4) to form a cavity, each cooling member (6) is against the heat conducting member (7); and the first heat transfer portion (19) included in the cooling member (6) extends into the first clearance groove of the first heat transfer member (20), the second heat transfer portion (21) of the first heat transfer member (20) extends into the second clearance groove (22) of the lower mold (4), and the third heat transfer portion (16) of the second heat transfer member (15) extends into the third clearance groove (17) of the lower mold (4); During cooling, the heating element (8) is stopped, and a pump is used to input and flow refrigerant into the temperature conducting element (7) through the liquid infusion pipe. The refrigerant in the temperature conducting element (7) is then discharged from the liquid discharge pipe and cooled again, and the temperature conducting element (7) is repeatedly recycled for cooling. When the temperature of the upper mold (3) and the lower mold (4) drops below 200 degrees Celsius, the cooling element (6) is energized, and the cooling element (6) is inserted into the upper mold (3) through the first mounting groove (5) to cool the upper mold (3).

2. A rapid cooling plastic processing mold according to claim 1, characterized in that: At least one first heat transfer element (20) is provided on the heat conducting element (7), and each first heat transfer element (20) is provided with a first clearance groove. The cooling element (6) includes an intervention plate (18) and a first heat transfer portion (19), and the first heat transfer portion (19) is connected to the bottom of the intervention plate (18). When the upper mold (3) is attached to the lower mold (4) to form a cavity, the first heat transfer portion (19) of each cooling element (6) enters the first clearance groove on the corresponding first heat transfer element (20).

3. A rapid cooling plastic processing mold according to claim 2, characterized in that: Each first heat transfer member (20) is provided with a second heat transfer portion (21), and the lower mold (4) is provided with at least one second clearance groove (22). When the upper mold (3) is attached to the lower mold (4) to form a cavity, the second heat transfer portion (21) on each first heat transfer member (20) enters the corresponding second clearance groove (22).

4. The rapid cooling plastic processing mold according to claim 1, characterized in that: The mold further comprises at least one second heat transfer member (15), each second heat transfer member (15) being located between the outer side of the upper mold (3) and the inner side of the heat conducting member (7), each second heat transfer member (15) being provided with a third heat transfer portion (16), and the lower mold (4) being provided with at least one limiting groove, each limiting groove being provided with a third clearance groove (17), and when the upper mold (3) is fitted to the lower mold (4) to form a cavity, each second heat transfer member (15) is against the limiting groove, and the third heat transfer portion (16) on each second heat transfer member (15) enters the corresponding third clearance groove (17).

5. The rapid cooling plastic processing mold according to claim 1, characterized in that: The mold (3) further comprises at least one connecting member (14), wherein at least one fourth mounting groove (13) is provided on the upper mold (3), one end of each connecting member (14) is installed in the corresponding fourth mounting groove (13) on the upper mold (3), and the other end of each connecting member (14) is connected to the upper mold base (1), and a second thermal insulation layer is provided on the outer surface of each fourth mounting groove (13).

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