Injection mold with high heat dissipation performance
By using centrifugal pumps, stirring blades and semiconductor refrigeration sheets in injection molds, the problem of low heat dissipation efficiency of existing injection molds is solved, and rapid cooling and efficient production are achieved.
Patent Information
- Application Number
- CN202421049473.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-14
AI Technical Summary
The existing injection molds have low heat dissipation efficiency, resulting in long cooling and forming time for the product and reducing production efficiency.
A high heat dissipation injection mold is designed, using components such as centrifugal pumps and stirring blades. Through the circulating flow and stirring of the coolant, the coolant is fully in contact with the inner wall of the mold, which speeds up the heat export, and uses a semiconductor refrigeration sheet in the cooling box. and thermal conductor plates improve heat dissipation efficiency.
It significantly improves heat dissipation efficiency, shortens cooling time, improves production efficiency, and improves the practicality of injection molds.
Smart Images
Figure CN222328912U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold with high heat dissipation. Background Art
[0002] Plastic injection molds are combined plastic molds used for compression molding, extrusion molding, injection molding, blow molding and low-foaming molding. They mainly include a concave mold with a variable cavity composed of a concave mold combination base plate, a concave mold assembly and a concave mold combination pallet, and a convex mold with a variable core composed of a convex mold combination base plate, a convex mold assembly, a convex mold combination pallet, a cavity truncation assembly and a side-section combination plate. The coordinated changes of the mold convex, concave mold and auxiliary molding system can process a series of plastic parts of different shapes and sizes. It is a tool that is matched with plastic molding machines in the plastic processing industry to give plastic products a complete configuration and precise size.
[0003] The existing injection mold has low heat dissipation efficiency and takes a long time for the product to cool and form, which greatly reduces the production efficiency of the product, is inconvenient for users to use, and reduces the practicality of the injection mold. Utility Model Content
[0004] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide an injection mold with high heat dissipation performance, which has the advantage of rapid heat dissipation and solves the problem that the existing injection molds have low heat dissipation efficiency and long product cooling and molding time, resulting in a significant decrease in product production efficiency.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold with high heat dissipation, comprising a bottom mold, the top of the bottom mold is fixedly connected to a mold base, the interior of the mold base is slidably connected to a mold core, the bottom wall of the mold core is fixedly connected to a module, the bottom wall of the mold core is fixedly connected to a mold groove, the module is located inside the mold groove, a cooling cavity is arranged inside the mold core, the cooling cavity is located outside the mold groove, an injection hole is opened on the top of the mold core, the injection hole is connected to the interior of the mold groove, both sides of the mold base are opened with connecting ports, and both sides of the mold core are A socket is provided, which is connected to the connecting port. A cooling box is arranged on the left side of the bottom mold. A fixing plate is fixedly connected to the right side of the cooling box. A centrifugal pump is fixedly connected to the top of the fixing plate. The input end of the centrifugal pump is connected to the interior of the cooling box. The output end of the centrifugal pump is connected to a liquid delivery pipe. The right end of the liquid delivery pipe extends to the interior of the cooling chamber through the connecting port and the socket. The liquid delivery pipe is slidably connected to the socket. A liquid outlet is penetrated on the front of the right end of the liquid delivery pipe. A reflux pipe is slidably connected to the interior of the socket on the right side, and the output end of the reflux pipe is connected to the cooling box.
[0006] As a preferred embodiment of the utility model, a motor is fixedly connected to the top of the cooling box, the output end of the motor passes through the interior of the cooling box and is fixedly connected to a rotating rod, stirring blades are fixedly connected on both sides of the rotating rod, and a plurality of openings are opened on the surface of the stirring blades.
[0007] As a preferred embodiment of the utility model, fixing grooves are provided at both ends of both sides of the mold base, fixing blocks are fixedly connected at both ends of both sides of the mold core, the fixing grooves are slidably connected to the fixing blocks, internal screw holes are provided on the bottom walls of the fixing grooves, bolts are threadedly connected inside the internal screw holes, and the top ends of the bolts penetrate through the top of the fixing block and are slidably connected thereto.
[0008] As a preferred embodiment of the utility model, anti-slip grooves are provided on both sides of the inner wall of the socket, anti-slip plates are fixedly connected on both sides of the liquid delivery pipe, the anti-slip plates are slidably connected to the anti-slip grooves, anti-slip holes are provided on the surfaces of the anti-slip plates, limiting holes are provided at both ends of both sides of the mold base, the limiting holes are connected to the anti-slip holes, anti-slip columns are slidably connected inside the limiting holes, the anti-slip columns are slidably connected to the anti-slip holes, the tops of the anti-slip columns are fixedly connected to connecting rods, and sealing rings are fixedly connected to the surfaces of the liquid delivery pipe and the reflux pipe, and the sealing rings are fitted with the mold core.
[0009] As a preferred embodiment of the utility model, a plurality of heat conducting plates are fixedly connected to the outer side of the mold groove, circular holes are opened on the surfaces of the heat conducting plates, and anti-corrosion coating is sprayed on the surfaces of the heat conducting plates.
[0010] As a preferred embodiment of the utility model, a plurality of square grooves are opened on the surface of the left side of the cooling box, and semiconductor refrigeration plates are fixedly connected to the inside of the square grooves. A plurality of connecting frames are fixedly connected to the left side of the cooling box, and the number of the connecting frames is consistent with the number of the square grooves. An exhaust motor is fixedly connected to the inner side of the connecting frame, and the output end of the exhaust motor passes through the left side of the connecting frame and is fixedly connected to an exhaust blade. A plurality of heat conduction plates are fixedly connected to the left wall of the cooling box.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0012] 1. The utility model injects the injection plastic into the interior of the mold groove through the injection hole by setting a centrifugal pump, and then starts the centrifugal pump to draw coolant from the interior of the cooling box and inject it into the interior of the cooling cavity through the liquid delivery pipe. The coolant absorbs the heat of the outer wall of the mold groove. At the same time, since the return pipe is connected with the cooling box and the cooling cavity, a negative pressure is generated inside the cooling box when the centrifugal pump is drawn, so that the coolant flows out to the outside of the mold base through the return pipe. At the same time, the return pipe contacts the external air to extract the heat of the coolant and flow into the interior of the cooling box, so that the coolant in the cooling cavity circulates and cools down, which greatly improves the heat dissipation efficiency and shortens the cooling time, thereby improving the production efficiency, facilitating the use of users, and improving the practicality of the injection mold.
[0013] 2. The utility model sets a motor and starts the motor to rotate the rotating rod, which drives the stirring blades to rotate. The rotation of the stirring blades mixes the coolant inside the cooling box evenly, so that the coolant inside the cooling box is in full contact with its inner wall, thereby accelerating the heat extraction and further improving the heat dissipation efficiency of the coolant. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0015] Figure 2 It is a partial front view cross-sectional schematic diagram of the structure of the utility model;
[0016] Figure 3 This is a front view cross-sectional schematic diagram of the structure of the utility model;
[0017] Figure 4 It is a side cross-sectional schematic diagram of the structure of the utility model.
[0018] In the figure: 1. bottom mold; 2. mold base; 3. mold core; 4. module; 5. mold groove; 6. cooling cavity; 7. injection hole; 8. connecting port; 9. socket; 10. cooling box; 11. fixing plate; 12. centrifugal pump; 13. liquid delivery pipe; 14. liquid outlet; 15. reflux pipe; 16. motor; 17. rotating rod; 18. stirring blade; 19. fixing groove; 20. fixing block; 21. inner screw hole; 22. bolt; 23. anti-slip groove; 24. anti-slip plate; 25. anti-slip hole; 26. limit hole; 27. anti-slip column; 28. connecting rod; 29. sealing ring; 30. heat conducting plate; 31. round hole; 32. square groove; 33. semiconductor refrigeration plate; 34. connecting frame; 35. exhaust motor; 36. exhaust blade; 37. heat conducting plate. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] like Figures 1 to 4 As shown, a high heat dissipation injection mold comprises a bottom mold 1, the top of the bottom mold 1 is fixedly connected with a mold base 2, the inside of the mold base 2 is slidably connected with a mold core 3, the bottom wall of the mold core 3 is fixedly connected with a module 4, the bottom wall of the mold core 3 is fixedly connected with a mold groove 5, the module 4 is located inside the mold groove 5, the inside of the mold core 3 is provided with a cooling cavity 6, the cooling cavity 6 is located outside the mold groove 5, the top of the mold core 3 is provided with an injection hole 7, the injection hole 7 is connected with the inside of the mold groove 5, both sides of the mold base 2 are provided with a connecting port 8, both sides of the mold core 3 are provided with a socket 9, the socket 9 is connected with the connecting port 8, and the bottom A cooling box 10 is provided on the left side of the mold 1, a fixing plate 11 is fixedly connected to the right side of the cooling box 10, a centrifugal pump 12 is fixedly connected to the top of the fixing plate 11, the input end of the centrifugal pump 12 is connected to the inside of the cooling box 10, the output end of the centrifugal pump 12 is connected to a liquid delivery pipe 13, the right end of the liquid delivery pipe 13 extends to the inside of the cooling chamber 6 through the connecting port 8 and the socket 9, the liquid delivery pipe 13 is slidably connected to the socket 9, a liquid outlet 14 is passed through the front of the right end of the liquid delivery pipe 13, a return pipe 15 is slidably connected to the inside of the right socket 9, and the output end of the return pipe 15 is connected to the cooling box 10. Through the provision of two liquid outlets 14, the coolant can flow out from both sides of the liquid delivery pipe 13, thereby avoiding the reverse thrust caused by the coolant impacting the left wall of the mold cavity 5, so that the liquid delivery pipe 13 will not shake inside the socket 9, reducing the possibility of coolant leakage.
[0021] refer to Figure 1 and Figure 3 A motor 16 is fixedly connected to the top of the cooling box 10. The output end of the motor 16 passes through the interior of the cooling box 10 and is fixedly connected to a rotating rod 17. Both sides of the rotating rod 17 are fixedly connected to stirring blades 18. A plurality of through openings are opened on the surface of the stirring blades 18.
[0022] As a technical optimization scheme of the utility model, through the setting of the motor 16, the motor 16 is started to rotate the rotating rod 17, and the rotating rod 17 drives the stirring blade 18 to rotate. The stirring blade 18 rotates to mix the coolant inside the cooling box 10 evenly, so that the coolant inside the cooling box 10 is in full contact with its inner wall, thereby accelerating the heat extraction and further improving the heat dissipation efficiency of the coolant.
[0023] refer to Figures 1 to 4Both ends of the mold base 2 are provided with fixing grooves 19, and both ends of the mold core 3 are fixedly connected with fixing blocks 20. The fixing grooves 19 are slidably connected to the fixing blocks 20. The bottom walls of the fixing grooves 19 are provided with internal screw holes 21, and the interiors of the internal screw holes 21 are threadedly connected with bolts 22. The top ends of the bolts 22 penetrate through the top of the fixing blocks 20 and are slidably connected thereto.
[0024] As a technical optimization solution of the utility model, by setting the bolt 22, the bolt 22 is rotated to screw out of the inner screw hole 21 to release the fixed limit of the fixed block 20, so that the core 3 can be taken out, which facilitates the replacement of different cores 3 and improves the applicability of the device.
[0025] refer to Figures 1 to 4 Anti-slip grooves 23 are provided on both sides of the inner wall of the socket 9, and anti-slip plates 24 are fixedly connected on both sides of the liquid feeding pipe 13. The anti-slip plates 24 are slidably connected to the anti-slip grooves 23. Anti-slip holes 25 are provided on the surfaces of the anti-slip plates 24. Limiting holes 26 are provided at both ends of both sides of the mold base 2. The limiting holes 26 are connected to the anti-slip holes 25. Anti-slip columns 27 are slidably connected inside the limiting holes 26. The anti-slip columns 27 are slidably connected to the anti-slip holes 25. The tops of the anti-slip columns 27 are fixedly connected to connecting rods 28. Sealing rings 29 are fixedly connected to the surfaces of the liquid feeding pipe 13 and the reflux pipe 15, and the sealing rings 29 are fitted with the mold core 3.
[0026] As a technical optimization scheme of the utility model, through the setting of the anti-slip column 27, the anti-slip plates 24 on both sides of the liquid supply pipe 13 and the return pipe 15 are inserted into the anti-slip groove 23, and then the connecting rod 28 is pressed to make the anti-slip column 27 inserted into the limiting hole 26 and the anti-slip hole 25, so that the sealing ring 29 fits tightly with both sides of the mold core 3 and will not loosen, thereby avoiding the problem of coolant leakage and improving the sealing performance of the device.
[0027] refer to Figure 3 A plurality of heat conducting sheets 30 are fixedly connected to the outer side of the mold groove 5 , and circular holes 31 are opened on the surfaces of the heat conducting sheets 30 , and the surfaces of the heat conducting sheets 30 are sprayed with an anti-corrosion coating.
[0028] As a technical optimization solution of the utility model, the contact area between the mold cavity 5 and the coolant is increased by setting the heat conductive sheet 30, so that the heat of the mold cavity 5 can be discharged faster, further improving the heat dissipation efficiency of the device.
[0029] refer to Figure 1 and Figure 3A plurality of square grooves 32 are provided on the surface of the left side of the cooling box 10, and semiconductor refrigeration plates 33 are fixedly connected inside the square grooves 32. A plurality of connecting frames 34 are fixedly connected to the left side of the cooling box 10, and the number of the connecting frames 34 and the square grooves 32 are the same. An exhaust motor 35 is fixedly connected to the inner side of the connecting frames 34, and the output end of the exhaust motor 35 passes through the left side of the connecting frame 34 and is fixedly connected to an exhaust blade 36. A plurality of heat conducting plates 37 are fixedly connected to the left wall of the cooling box 10.
[0030] As a technical optimization scheme of the utility model, by setting up the semiconductor refrigeration plate 33, the semiconductor refrigeration plate 33 is started to emit cold energy through the left wall of the cooling box 10 and introduced into the interior of the cooling box 10, and the coolant inside is quickly cooled down under the heat conduction effect of the heat conduction plate 37, so that the cooling efficiency of the coolant is greatly improved.
[0031] The working principle and use process of the utility model are as follows: when in use, the user slides the mold core 3 into the mold base 2, inserts the bolt 22 into the fixing groove 19 and screws it into the inner screw hole 21 to fix the mold core 3, and then inserts the anti-slip plates 24 on both sides of the liquid feeding pipe 13 and the reflux pipe 15 into the anti-slip groove 23, and then presses the connecting rod 28 to insert the anti-slip column 27 into the limiting hole 26 and the anti-slip hole 25, so that the sealing ring 29 fits tightly with both sides of the mold core 3 and will not loosen, and injects the injection plastic into the mold groove 5 through the injection hole 7, and then starts the centrifugal pump 12, so that the centrifugal pump 12 draws coolant from the inside of the cooling box 10 and injects it into the cooling cavity 6 through the liquid feeding pipe 13, and the coolant absorbs the heat of the outer wall of the mold groove 5, and at the same time, due to the reflux The pipe 15 is connected with the cooling box 10 and the cooling chamber 6. When the centrifugal pump 12 draws, negative pressure is generated inside the cooling box 10, so that the coolant flows out to the outside of the mold base 2 through the return pipe 15. At the same time, the return pipe 15 contacts the external air to discharge the heat of the coolant and flow into the cooling box 10, so that the coolant in the cooling chamber 6 circulates and cools down. Then the semiconductor refrigeration plate 33 is started to emit cold energy through the left wall of the cooling box 10 and introduce it into the cooling box 10. At the same time, the motor 16 is started to rotate the rotating rod 17, and the rotating rod 17 drives the stirring blade 18 to rotate. The stirring blade 18 rotates to mix the coolant inside the cooling box 10 evenly, so that the coolant inside the cooling box 10 is fully in contact with its left wall and the heat conduction plate 37, so that the coolant can be quickly cooled and circulated.
[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An injection mold with high heat dissipation performance, comprising a bottom mold (1), characterized in that: The top of the bottom mold (1) is fixedly connected to a mold base (2), the interior of the mold base (2) is slidably connected to a mold core (3), the bottom wall of the mold core (3) is fixedly connected to a module (4), the bottom wall of the mold core (3) is fixedly connected to a mold groove (5), the module (4) is located inside the mold groove (5), a cooling cavity (6) is provided inside the mold core (3), the cooling cavity (6) is located outside the mold groove (5), an injection hole (7) is provided on the top of the mold core (3), the injection hole (7) is connected to the interior of the mold groove (5), both sides of the mold base (2) are provided with a connecting port (8), both sides of the mold core (3) are provided with a socket (9), the socket (9) is connected to the connecting port (8), the bottom mold (1) is provided with a mold base (2), and the bottom mold (1) is provided with a mold base (2). A cooling box (10) is arranged on the left side, a fixing plate (11) is fixedly connected to the right side of the cooling box (10), a centrifugal pump (12) is fixedly connected to the top of the fixing plate (11), an input end of the centrifugal pump (12) is connected to the interior of the cooling box (10), an output end of the centrifugal pump (12) is connected to a liquid delivery pipe (13), a right end of the liquid delivery pipe (13) extends to the interior of the cooling chamber (6) through a connecting port (8) and a socket (9), the liquid delivery pipe (13) is slidably connected to the socket (9), a liquid outlet (14) is passed through the front of the right end of the liquid delivery pipe (13), a return pipe (15) is slidably connected to the interior of the socket (9) on the right side, and the output end of the return pipe (15) is connected to the cooling box (10).
2. The high heat dissipation injection mold according to claim 1, characterized in that: A motor (16) is fixedly connected to the top of the cooling box (10), an output end of the motor (16) passes through the interior of the cooling box (10) and is fixedly connected to a rotating rod (17), both sides of the rotating rod (17) are fixedly connected to stirring blades (18), and a plurality of openings are provided on the surface of the stirring blades (18).
3. The high heat dissipation injection mold according to claim 1, characterized in that: Both ends of the mold base (2) are provided with fixing grooves (19), and both ends of the mold core (3) are fixedly connected with fixing blocks (20). The fixing grooves (19) are slidably connected to the fixing blocks (20). The bottom walls of the fixing grooves (19) are provided with internal screw holes (21), and the interiors of the internal screw holes (21) are threadedly connected with bolts (22), and the top ends of the bolts (22) penetrate through the top of the fixing blocks (20) and are slidably connected thereto.
4. The high heat dissipation injection mold according to claim 1, characterized in that: Anti-slip grooves (23) are provided on both sides of the inner wall of the socket (9); anti-slip plates (24) are fixedly connected to both sides of the liquid delivery pipe (13); the anti-slip plates (24) are slidably connected to the anti-slip grooves (23); anti-slip holes (25) are provided on the surfaces of the anti-slip plates (24); limiting holes (26) are provided at both ends of both sides of the mold base (2); the limiting holes (26) are communicated with the anti-slip holes (25); the interiors of the limiting holes (26) are slidably connected with anti-slip columns (27); the anti-slip columns (27) are slidably connected to the anti-slip holes (25); the tops of the anti-slip columns (27) are fixedly connected with connecting rods (28); the surfaces of the liquid delivery pipe (13) and the reflux pipe (15) are fixedly connected with sealing rings (29); the sealing rings (29) are fitted with the mold core (3).
5. The high heat dissipation injection mold according to claim 1, characterized in that: A plurality of heat conducting plates (30) are fixedly connected to the outer side of the mold groove (5), and circular holes (31) are provided on the surfaces of the heat conducting plates (30). The surfaces of the heat conducting plates (30) are sprayed with an anti-corrosion coating.
6. The high heat dissipation injection mold according to claim 1, characterized in that: The surface of the left side of the cooling box (10) is provided with a plurality of square grooves (32), the interior of the square grooves (32) are fixedly connected with semiconductor cooling plates (33), the left side of the cooling box (10) is fixedly connected with a plurality of connecting frames (34), the number of the connecting frames (34) and the square grooves (32) are the same, the inner side of the connecting frames (34) is fixedly connected with an exhaust motor (35), the output end of the exhaust motor (35) passes through the left side of the connecting frame (34) and is fixedly connected with an exhaust blade (36), and the left wall of the cooling box (10) is fixedly connected with a plurality of heat conducting plates (37).