Plastic processing mold with rapid cooling function

Abstract

The invention provides a quick-cooling plastic processing mold, and relates to the technical field of injection molding equipment. According to the technical scheme, the plastic processing mold capable of being rapidly cooled comprises an upper mold base and a lower mold base, an upper mold body is arranged in the upper mold base, a lower mold body is arranged in the lower mold base, a first installation groove and a cooling piece installed in the first installation groove are arranged in the upper mold base, and a temperature conduction piece is arranged on the outer side of the upper mold body. Through cooperation of a heating piece, a lower mold, an upper mold, a temperature conduction piece, a cooling piece and a first mounting groove, after the upper mold and the lower mold are attached, the high temperature of the lower mold can be transmitted to the upper mold in a limited mode, the upper mold is rapidly heated to the temperature ranging from 250DEG C to 350DEG C, the temperature of the lower mold and the upper mold is rapidly increased, and the temperature of the upper mold and the lower mold is increased. And the high temperature of the upper mold is preliminarily reduced through the temperature conducting piece, the cooling piece is inserted through the first mounting groove, the temperature of the upper mold and the lower mold is rapidly reduced, and the qualification rate of plastic products is increased.

Description

Technical Field

[0001] This application relates to the technical field of injection molding, and particularly to a plastic processing mold with rapid cooling. Background Art

[0002] Plastic processing generally uses an injection molding machine. The main principle of the injection molding machine is to heat plastic particles into a liquid and inject it into the mold, enabling manufacturers to produce plastic products quickly and in batches in a short time to meet the market demand for products. At the same time, conventional plastic molds have precise dimensions, smooth product surfaces, stable quality, good interactivity, and are convenient for automated production. The production efficiency using injection molds is high, and plastic products that are relatively complex and have high precision can be processed. Moreover, the quality of the products can be guaranteed to be stable, which can greatly reduce the production cost.

[0003] When producing highly transparent or pure black plastic products that can have specular reflection, higher requirements are needed for the temperature control of the mold. It is difficult to open the mold for transparent parts on conventional injection equipment because transparent parts have high requirements and cannot have any defects such as stripes, pores, black spots, and discoloration. High requirements are imposed on both injection molding and the mold. When the plastic melt enters the gap between the molds, the mold needs to maintain a relatively high temperature. A lower temperature will cause the plastic melt to solidify quickly when it first contacts the mold surface, resulting in uneven solidification of the plastic part. At the same time, it will be difficult to flow, leading to an increase in the rejection rate of plastic parts. If the cooling temperature drops too slowly, the solidification speed of the plastic part will become slower, resulting in wire drawing during demolding, thereby reducing the production speed and increasing the rejection rate of plastic parts.

[0004] Regarding the above-mentioned technologies and treatment measures, the inventor believes that the following defects exist: Currently, the existing cooling technologies usually use water cooling and air cooling, and neither of them can rapidly cool the mold in a short time. And rapid cooling will cause the plastic part itself to shrink and crack due to the rapid temperature drop. Summary of the Invention

[0005] In order to solve the above problems, this application provides a plastic processing mold with rapid cooling, which can enable the plastic product to be rapidly cooled and formed while ensuring the product quality.

[0006] A plastic processing mold with rapid cooling provided by this application adopts the following technical solutions: It includes a lower mold base, in which a lower mold and a heating element for providing heat source for the lower mold are provided; An upper mold base, in which an upper mold is provided. The upper mold in the upper mold base is located on one side of the lower mold of the lower mold base close to it. The upper mold base can be matched with the lower mold base so that the upper mold fits the lower mold to form a cavity. An inlet is provided on the upper mold base leading to the inside of the upper mold; A heat conduction member, the heat conduction member being located outside the upper mold within the upper mold base; A cooling member, at least one first installation groove being provided on the upper mold base, and each cooling member being installed within each first installation groove. When the upper mold is in contact with the lower mold to form a cavity, each cooling member abuts against the heat conduction member.

[0007] In some embodiments of the present invention, at least one first heat transfer member is provided on the heat conduction member, and each first heat transfer member is provided with a first relief groove. The cooling member includes an intervening plate and a first heat transfer portion, the first heat transfer portion being connected to the bottom of the intervening plate. When the upper mold is in contact with the lower mold to form a cavity, the first heat transfer portion of each cooling member enters the first relief groove on the corresponding first heat transfer member.

[0008] In some embodiments of the present invention, each first heat transfer member is provided with a second heat transfer portion, and at least one second relief groove is provided on the lower mold. When the upper mold is in contact with the lower mold to form a cavity, the second heat transfer portion on each first heat transfer member enters the corresponding second relief groove.

[0009] In some embodiments of the present invention, at least one second heat transfer member is further included, each second heat transfer member being located between the outside of the upper mold and the inside of the heat conduction member, each second heat transfer member being provided with a third heat transfer portion, at least one limiting groove being provided on the lower mold, and each limiting groove being provided with a third relief groove. When the upper mold is in contact with the lower mold to form a cavity, each second heat transfer member abuts against the limiting groove, and the third heat transfer portion on each second heat transfer member enters the corresponding third relief groove.

[0010] In some embodiments of the present invention, a copper film layer is provided on the surface of each third relief groove.

[0011] In some embodiments of the present invention, the heating member is a heating coil.

[0012] In some embodiments of the present invention, the cooling member is a semiconductor.

[0013] In some embodiments of the present invention, the heat conduction member is a heat conduction tube.

[0014] In some embodiments of the present invention, a second installation groove is provided within the lower mold base, the lower mold being installed within the second installation groove, the heating member being installed outside the lower mold within the second installation groove, a heat conduction member being provided between the heating member and the lower mold, and the heating member being connected to the heat conduction member.

[0015] In some embodiments of the present invention, a heat insulation assembly is further included. The heat insulation assembly includes a heat insulation plate located in the second installation groove and sleeved outside the heating element; and a seal located at the opening of the second installation groove. The inner side of the seal fits against the outer edge surface of the top of the upper mold, and the outer side of the seal fits against the top edge surface of the second installation groove.

[0016] In some embodiments of the present invention, a feeding pipe is further included. One end of the feeding pipe is connected to the feeding port of the upper mold, and a threaded feeding groove is provided inside the feeding pipe.

[0017] In some embodiments of the present invention, a threaded liquid inlet pipe is provided on the outer surface of the feeding pipe.

[0018] In some embodiments of the present invention, a first heat insulation layer is provided outside the feeding pipe, and the threaded liquid inlet pipe is located between the outer side of the feeding pipe and the inner side of the first heat insulation layer.

[0019] In some embodiments of the present invention, at least one connecting member is further included. At least one fourth installation groove is provided on the upper mold. One end of each connecting member is installed in the corresponding fourth installation groove on the upper mold, and the other end of each connecting member is connected to the upper mold base. A second heat insulation layer is provided on the outer surface of each fourth installation groove.

[0020] In summary, the present application includes the following beneficial technical effects: Through the cooperation between the heating element, the lower mold, the upper mold, the heat conduction element, the cooling element and the first installation groove, the present invention can rapidly increase the temperature of the lower mold by using a magnetic field. After the upper mold and the lower mold are fitted together, the high temperature of the lower mold can be limitedly transferred to the upper mold, so that the temperature of the lower mold can rapidly rise to between 250 °C and 300 °C. After the plastic liquid enters, the upper mold can rely on the high temperature of the plastic liquid and the lower mold to rise to between 200 °C and 250 °C in a short time, and steadily increase according to the injection amount of a single piece of plastic liquid. During cooling, the heating element stops working, and a refrigerant is input and flows in the heat conduction element. The refrigerant can limitedly reduce the high temperature of the upper mold, and the upper mold can absorb the high temperature of the lower mold. When the temperature of the upper mold and the lower mold drops below 200 °C, the cooling element starts to intervene through the first installation groove, so that the temperature of the upper mold and the lower mold rapidly drops, enabling rapid cooling without affecting the qualification rate of plastic products. At the same time, the heating element can also rapidly increase the temperature of the lower mold and the upper mold, improving the qualification rate of plastic products.

[0021] Through the cooperation among the heat insulation plate, the seal, the second installation groove and the heating element, a layer of aerogel thermal insulation material and polymer foamed resin thermal insulation cotton is covered on the inner wall of the heat insulation plate and the bottom surface of the seal. The aerogel thermal insulation material takes nano-silica aerogel as the main material, is a soft, inorganic and environmentally friendly thermal insulation material that is easy to construct, has a conventional heat resistance of 150 °C, and the heat resistance of the compressed composite thermal insulation cotton can reach 200-280 °C. The polymer foamed resin thermal insulation cotton has excellent thermal insulation performance, can withstand high temperatures, and has good anti-aging performance and a long service life, enabling the heat inside to repeatedly reflect the high temperature generated by the heating element, thereby improving the heat utilization rate inside, enabling the lower mold to heat up quickly, reducing the preheating time for processing, making it more usable and improving the production speed and quality of products. The seal and the heat insulation plate can be installed in the second installation groove through screws, and can also be disassembled and replaced according to different molds, enabling the lower mold to be reused repeatedly, improving the practicability of the equipment. Description of the Drawings

[0022] Figure 1 is the schematic diagram of the overall structure in the embodiment of the present application; Figure 2 is the schematic diagram of the sectional structure of the upper mold base in the embodiment of the present application; Figure 3 is the schematic diagram of the internal structure of the feeding pipe in the embodiment of the present application; Figure 4 is the schematic diagram of the cross-sectional structure of the upper mold base in the embodiment of the present application; Figure 5 is the schematic diagram of the structure of the upper mold and the lower mold base in the embodiment of the present application; Figure 6 is the schematic diagram of the sectional structure of the lower mold base in the embodiment of the present application; Figure 7 is the schematic diagram of the exploded structure of the upper mold base in the embodiment of the present application; Figure 8 is the schematic diagram of the exploded structure of the lower mold base in the embodiment of the present application; Figure 9 is the schematic diagram of the exploded structure of the bottom of the lower mold base in the embodiment of the present application; Figure 10 is the schematic diagram of the exploded structure of the upper mold and the lower mold in the embodiment of the present application; Figure 11 is the schematic diagram of the magnetic field coverage range of the heating element and the heat conduction mode between the heat conduction element and the lower mold in the embodiment of the present application; Figure 12 is the schematic diagram of the horizontal sectional structure of the heat conduction element in the embodiment of the present application; Figure 13 is the schematic diagram of the state where the upper mold and the lower mold do not form a cavity in the embodiment of the present application; Figure 14 It is a schematic diagram of the state where the upper mold and the lower mold form a cavity in the embodiment of the present application.

[0023] Reference numerals: 1 - upper mold base, 2 - lower mold base, 3 - upper mold, 4 - lower mold, 5 - first installation groove, 6 - cooling member, 7 - heat conduction member, 8 - heating member, 9 - feeding port, 10 - material conveying pipe, 11 - threaded liquid inlet pipe, 12 - first heat insulation layer, 13 - fourth installation groove, 14 - connecting member, 15 - second heat conduction member, 16 - third heat conduction part, 17 - third relief groove, 18 - intervening plate, 19 - first heat conduction part, 20 - first heat conduction member, 21 - second heat conduction part, 22 - second relief groove, 23 - second installation groove, 24 - installation hole, 25 - heat conduction piece, 26 - heat insulation plate, 27 - fixing frame, 28 - sealing member, 29 - screw. Detailed implementation manners

[0024] Embodiment The following further elaborates on the present application in conjunction with the attached Figure 1-11 drawings.

[0025] A plastic processing mold with rapid cooling according to an embodiment of the present application includes a lower mold base 2. A lower mold 4 and a heating member 8 for providing a heat source for the lower mold 4 are provided in the lower mold base 2. The lower mold 4 is located on the outer surface of the top of the lower mold base 2. The heating member 8 is a heating coil, and the whole heating coil is a high-frequency induction heating device, which can rapidly increase the temperature of the lower mold 4 by using a magnetic field; an upper mold base 1, an upper mold 3 is provided in the upper mold base 1. The upper mold 3 of the upper mold base 1 is located on one side of the lower mold 4 close to the lower mold base 2. The upper mold 3 is located on the outer surface of the bottom 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 fits against the lower mold 4 to form a cavity. A feeding port 9 leading to the inside of the upper mold 3 is opened on the upper mold base 1. Plastic liquid is input into the cavity between the upper mold 3 and the lower mold 4 through the feeding port 9. In this embodiment, after the upper mold 3 and the lower mold 4 are fitted together, when 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 member 8, and the high temperature of the lower mold 4 can be limitedly transferred to the upper mold 3, so that the temperature of the upper mold 3 rapidly rises to between 250 °C and 300 °C. After the plastic liquid enters, the upper mold 3 can rise to between 200 °C and 250 °C in a short time depending on the plastic liquid and the high temperature of the lower mold 4, and steadily increases according to the injection amount of a single piece of plastic liquid, which can prevent the plastic liquid in the cavity between the upper mold 3 and the lower mold 4 from being prematurely cooled and affecting the product quality, and improve the qualified rate of plastic products; A heat conduction member 7, the heat conduction member 7 is located outside the upper mold 3 within the upper mold base 1, the heat conduction member 7 is a heat conduction pipe, the heat conduction member 7 is fixedly connected to the outer surface of the upper mold 3. When the upper mold 3 is attached to the lower mold 4 to form a cavity, the adjacent sides of the upper mold base 1 and the lower mold base 2 do not completely come close and fit. After the injected plastic liquid completely fills the cavity between the upper mold 3 and the lower mold 4, cooling is required to form the product. During cooling, the heating member 8 stops operating. The heat conduction member 7 is connected to the liquid inlet and the liquid outlet on the heat conduction member 7 through a liquid delivery pipe and a liquid discharge pipe respectively. The pump is used to input and flow the refrigerant into the heat conduction member 7 through the liquid delivery pipe. The refrigerant in the heat conduction member 7 is then discharged from the liquid discharge pipe for further cooling. The above cycle is repeated to cool using the heat conduction member 7. The refrigerant in the heat conduction member 7 can effectively initially reduce the high temperature of the upper mold 3, and then the upper mold 3 absorbs the high temperature of the lower mold 4 to achieve the initial temperature reduction of the upper mold 3, the lower mold 4, and the plastic liquid inside them; A cooling member 6, at least one first installation groove 5 is opened on the upper mold base 1, and each cooling member 6 is installed in each first installation groove 5. When the upper mold 3 is attached to the lower mold 4 to form a cavity, each cooling member 6 abuts against the heat conduction member 7. The first installation groove 5 provides an installation space for the cooling member 6 to be installed within the upper mold base 1. In addition, when the cooling member 6 is operating, the first installation 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 it is necessary to use the cooling member 6 to cool the plastic liquid in the upper mold 3 and the lower mold 4, first, the upper mold 3, the lower mold 4, and the plastic liquid inside them are initially cooled by the heat conduction member 7. When the temperature of the upper mold 3 and the lower mold 4 drops below two hundred degrees Celsius, the cooling member 6 is then powered on. The cooling member 6 intervenes into the upper mold 3 through the first installation groove 5 to cool the upper mold 3. Since the upper mold 3 abuts and fits against the lower mold 4, the upper mold 3 absorbs the heat of the lower mold 4 while its temperature decreases. After the cooling member 6 is powered on, it can quickly direct the heat of the refrigerating surface to the heat dissipation surface, indirectly achieving the cooling of the lower mold 4. The cooling member 6 starts to intervene through the first installation groove 5, causing the temperature of the upper mold 3 and the lower mold 4 to drop rapidly, enabling them to be quickly cooled without affecting the qualification rate of plastic products. It should be noted that in this embodiment, four first installation grooves 5 are opened on the upper mold 3 at equal angles centered on the feeding port 9, but this is not a limitation of the present invention. The corresponding number of first installation grooves 5 can be selected according to actual needs, and the corresponding first installation grooves 5 can be opened at the corresponding positions on the upper mold 3 according to needs. In addition, the cooling member 6 can be installed in the corresponding first installation groove 5 in a fixed or detachable installation manner according to needs.

[0026] As a preferred embodiment, at least one first heat transfer member 20 is provided on the heat conduction member 7. The first heat transfer member 20 is an auxiliary heat transfer block, and the first heat transfer member 20 is fixedly connected to the outer side of the heat conduction member 7. Each first heat transfer member 20 is provided with a first relief groove. The cooling member 6 includes an intervening plate 18 and a first heat transfer portion 19. The first heat transfer portion 19 is fixedly connected to the bottom of the intervening plate 18. The first heat transfer portion 19 is a cooling rod provided at the bottom of the intervening 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 member 6 enters the first relief groove on the corresponding first heat transfer member 20, which can increase the contact area between the cooling member 6 and the heat conduction member 7, and further improve the cooling effect of the cooling member 6 on the upper mold 3.

[0027] As a preferred embodiment, each first heat transfer member 20 is provided with a second heat transfer portion 21. The second heat transfer portion 21 is two intervening rods provided at the bottom of the first heat transfer member 20. The lower mold 4 is provided with at least one second relief 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 relief groove 22, which can further increase the contact area between the heat conduction member 7 and the lower mold 4, and further improve the cooling effect of the lower mold 4. The first heat transfer member 20 and the cooling member 6 are both made of copper, and a layer of graphene layer is covered on the surfaces of the first heat transfer member 20, the cooling member 6, the first relief groove and the second relief groove 22. Graphene is a single-layer carbon atom surface material peeled from graphite by a special process, and has a honeycomb-like two-dimensional planar structure formed by tightly arranging single-layer carbon atoms in a regular hexagon structure. The room-temperature thermal conductivity of single-layer suspended graphene can reach 3000 - 5300 W / (m·K), so that it can quickly absorb the heat transferred from the upper mold 3 through the heat conduction member 7 and from the lower mold 4 through the second relief groove 22, enabling it to be quickly cooled. It should be noted that in this embodiment, four first heat transfer members 20 are evenly distributed along the outer side of the heat conduction member 7, and four second relief grooves 22 are correspondingly opened on the lower mold 4, but this is not a limitation of the present invention. The corresponding number of first heat transfer members 20 can be set on the outer side of the heat conduction member 7 according to the actual required cooling effect, and the corresponding number of second relief grooves 22 can be opened on the lower mold 4 on this basis.

[0028] As a preferred embodiment, it further 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 guiding member 7. Each second heat transfer member 15 is provided with a third heat transfer portion 16. The lower mold 4 is provided with at least one limiting groove, and each limiting groove is provided with a third relief groove 17. When the upper mold 3 is attached to the lower mold 4 to form a cavity, each second heat transfer member 15 abuts against the limiting groove, and the third heat transfer portion 16 on each second heat transfer member 15 enters the corresponding third relief groove 17. The second heat transfer member 15 is a bump provided between the outer side of the upper mold 3 and the inner side of the heat guiding member 7, and the third heat transfer portion 16 is the bump head extending downward toward the lower mold 4 on the bump. When the upper mold 3 is attached to the lower mold 4 to form a cavity, the third heat transfer portion 16 abuts against the limiting groove. By using the limiting of the limiting groove on the third heat transfer portion 16, the shape of the cavity is ensured. The third relief groove 17 is a groove opened on the limiting groove of the lower mold 4 and cooperating with the second heat transfer member 15. When cooling, the third heat transfer portion 16 on each second heat transfer member 15 is located in the third relief groove 17 on the lower mold 4, which can increase the contact area between the heat guiding member 7 and the lower mold 4, thereby improving the speed of transferring the high temperature of the lower mold 4 to the upper mold 3 and 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 guiding member 7, and four limiting grooves and corresponding third relief grooves 17 are correspondingly opened on the lower mold 4. This setting method should not be regarded as a limitation of the present invention. The corresponding number of second heat transfer members 15 can be selected to be provided on the outer side of the heat guiding member 7 according to the actual required cooling effect, and on this basis, the corresponding number of third relief grooves 17 are opened on the lower mold 4.

[0029] 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.

[0030] As a preferred embodiment, a second installation groove 23 is opened in the lower mold base 2. The lower mold 4 is installed in the second installation groove 23. The heating member 8 is installed on the outer side of the lower mold 4 in the second installation groove 23. A heat conducting member 25 is provided between the heating member 8 and the lower mold 4. The heating member 8 is connected to the heat conducting member 25. The heat conducting member 25 is a copper ring plate. The heat conducting member 25 sleeved on the outer side of the lower mold 4 can quickly conduct the high temperature generated by the magnetic field of the heating member 8, thereby assisting the lower mold 4 to quickly heat up.

[0031] As a preferred embodiment, it further includes a heat insulation component. The heat insulation component includes a heat insulation plate 26, and the heat insulation plate 26 is an annular asbestos plate. The heat insulation plate 26 is located in the second installation groove 23 and sleeved outside the heating element 8. The heat insulation plate 26 is installed in the second installation groove 23 in a sliding connection manner; a seal 28, the seal 28 is located at the opening of the second installation groove 23. The inner side of the seal 28 fits against the outer side surface of the top of the upper mold 3, and the outer side of the seal 28 fits against the top surface of the second installation groove 23. The seal 28 is an annular sealing plate that seals the space between the outside of the upper mold 3 and the second installation groove 23. A layer of aerogel heat insulation material and polymer foam resin heat insulation cotton is covered on the inner wall of the heat insulation plate 26 and the bottom surface of the seal 28. The aerogel heat insulation material uses nano-silica aerogel as the main material, which is a soft, inorganic, environmentally friendly and easy-to-construct heat insulation material. Its conventional heat resistance is 150°C, and the heat resistance of the composite compressed heat insulation cotton can reach 200 - 280°C. The polymer foam resin heat insulation cotton has excellent heat insulation performance, can withstand high temperatures, and has good anti-aging performance and a long service life, enabling the heat inside to be reflected repeatedly, thereby improving the utilization rate of the internal heat, enabling the lower mold 4 to heat up quickly, reducing the processing preheating time, and making it more usable and improving the speed and quality of product production.

[0032] As a preferred embodiment, it further includes a fixing frame 27. The fixing frame 27 is slidably connected to the inner wall of the second installation groove 23, and the fixing frame 27 is fixedly connected to the heat insulation plate 26. Four mounting holes 24 are provided on the lower mold base 2 and are evenly distributed in a circumferential array. The fixing frame 27 is fixedly installed on the lower mold base 2 through screws 29 to fix the heat insulation plate 26. The screws 29 can sequentially pass through the seal 28 and the fixing frame 27 to fix them, further improving the structural stability. The method of using screws 29 to fix the fixing frame 27 and the seal 28 can also be disassembled and replaced with different molds according to needs, enabling the lower mold 4 to be reused repeatedly and improving the practicality of this product.

[0033] As a preferred embodiment, it further includes a feeding pipe 10. One end of the feeding pipe 10 is connected to the feeding port 9 of the upper mold 3. A threaded feeding groove is provided inside the feeding pipe 10. Through the threaded feeding groove, the heated plastic liquid can be injected into the upper mold 3 and the lower mold 4 through the feeding port 9. The feeding pipe 10 uses the threaded feeding groove to increase the flow path and time of the thermoplastic liquid in the pipe, ensuring that the plastic liquid in the feeding pipe 10 is heated sufficiently, and avoiding solidification of the plastic liquid due to temperature drop during the flow, which affects the quality of the finished product.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] The implementation principle of the embodiment of this application is as follows: When the device needs to be used, move the upper die base 1 downward so that the upper die 3 and the lower die 4 are in contact with each other. Subsequently, turn on the heating element 8 to quickly heat up the lower die 4. The high temperature of the lower die 4 can be transferred through the contact between the lower die 4 and the upper die 3. In addition, it can also be transferred and heat the upper die 3 through the second heat transfer member 15 and the heat conduction member 7. Then, inject plastic liquid between the upper die 3 and the lower die 4 through the feeding port 9. After the plastic liquid fills the space between the upper die 3 and the lower die 4, turn off the heating element 8 and start the circulation of the cooling liquid inside the heat conduction member 7 to initially start cooling the upper die 3. Since the cooling rate of liquid water cooling is limited, it can only slowly and stably reduce the high temperature of the upper die 3 and the lower die 4 to below two hundred degrees Celsius. When the temperature drops below two hundred degrees Celsius, push the cooling member 6 downward so that the cooling member 6 contacts the heat conduction member 7 in the first installation groove 5, and the first heat transfer portion 19 is inserted into the second relief groove 22 of the first heat transfer member 20, causing the liquid temperature in the heat conduction member 7 to rapidly drop, enabling the upper die base 1 and the lower die base 2 to be quickly cooled, thereby cooling the plastic liquid therein.

[0038] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A plastic processing mold with rapid cooling, characterized in that: It includes a lower die base (2), in which a lower die (4) and a heating element (8) for providing a heat source for the lower die (4) are provided; An upper die base (1), in which an upper die (3) is provided. The upper die (3) in the upper die base (1) is located on one side of the lower die (4) in the lower die base (2) close to it. The upper die base (1) can be fitted to the lower die base (2) so that the upper die (3) fits against the lower die (4) to form a cavity. A material inlet (9) leading to the inside of the upper die (3) is provided on the upper die base (1); A heat conducting element (7), which is located outside the upper die (3) in the upper die base (1); A cooling element (6), at least one first installation groove (5) is provided on the upper die base (1), and each cooling element (6) is installed in each first installation groove (5). When the upper die (3) fits against the lower die (4) to form a cavity, each cooling element (6) abuts against the heat conducting element (7).

2. A plastic processing mold with rapid cooling 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 relief groove. The cooling element (6) includes an intervening plate (18) and a first heat transfer portion (19). The first heat transfer portion (19) is connected to the bottom of the intervening plate (18). When the upper die (3) fits against the lower die (4) to form a cavity, the first heat transfer portion (19) of each cooling element (6) enters the first relief groove on the corresponding first heat transfer element (20).

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

4. A plastic processing mold with rapid cooling according to claim 1, characterized in that: It also includes at least one second heat transfer element (15). Each second heat transfer element (15) is located between the outside of the upper die (3) and the inside of the heat conducting element (7). Each second heat transfer element (15) is provided with a third heat transfer portion (16). At least one limiting groove is provided on the lower die (4), and each limiting groove is provided with a third relief groove (17). When the upper die (3) fits against the lower die (4) to form a cavity, each second heat transfer element (15) abuts against the limiting groove, and the third heat transfer portion (16) on each second heat transfer element (15) enters the corresponding third relief groove (17).

5. A plastic processing mold with rapid cooling according to claim 1, characterized in that: A second installation groove (23) is provided in the lower die base (2), the lower die (4) is installed in the second installation groove (23), the heating element (8) is installed outside the lower die (4) in the second installation groove (23), a heat conducting member (25) is provided between the heating element (8) and the lower die (4), and the heating element (8) is connected to the heat conducting member (25).

6. A plastic processing mold for rapid cooling according to claim 5, characterized in that: It further includes a heat insulation component, the heat insulation component includes a heat insulation plate (26), the heat insulation plate (26) is located in the second installation groove (23) and sleeved outside the heating element (8); a seal (28), the seal (28) is located at the opening of the second installation groove (23), the inner side of the seal (28) is attached to the outer side surface along the top of the upper mold (3), and the outer side of the seal (28) is attached to the top surface along the second installation groove (23).

7. A plastic processing mold with rapid cooling according to claim 1, characterized in that: It further includes a feeding pipe (10), one end of the feeding pipe (10) is connected to the feeding port (9) of the upper mold (3), and a threaded feeding groove is provided inside the feeding pipe (10).

8. A plastic processing mold for rapid cooling according to claim 7, characterized in that: A threaded liquid inlet pipe (11) is provided on the outer surface of the feeding pipe (10).

9. A plastic processing mold with rapid cooling according to claim 8, characterized in that: A first heat insulation layer (12) is provided outside the feeding pipe (10), and the threaded liquid inlet pipe (11) is located between the outside of the feeding pipe (10) and the inside of the first heat insulation layer (12).

10. A plastic processing mold for rapid cooling according to claim 1, characterized in that: It further includes at least one connecting piece (14), at least one fourth installation groove (13) is provided on the upper mold (3), one end of each connecting piece (14) is installed in the corresponding fourth installation groove (13) on the upper mold (3), the other end of each connecting piece (14) is connected to the upper mold base (1), and a second heat insulation layer is provided on the outer surface of each fourth installation groove (13).

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