A thermal management multi-way valve forming die and forming process

Abstract

The present application relates to the field of molds, and in particular to a thermal management multi-way valve molding mold, comprising a fixed mold and a movable mold; the fixed mold comprises a fixed mold core, on which a first molding groove is provided; the movable mold comprises a movable platen and a movable mold seat, the movable platen and the movable mold seat slidingly cooperating; a movable mold core is fixedly provided in the movable platen, on which a second molding groove is fixedly provided; when the thermal management multi-way valve molding mold is in a mold-closing state, the first molding groove and the second molding groove enclose a closed mold cavity; a first pipe groove is provided on the fixed mold core, and a second pipe groove is provided on the movable mold core, and the first pipe groove and the second pipe groove enclose a pipe groove; a gate assembly is provided on the fixed mold, and an embedded assembly for molding the pipe on the side of the six-way valve is provided on the movable mold; the movable mold also comprises a mold core, which passes through the movable mold core and is connected to the movable mold core, and the mold core is provided with a concave end; when the molding mold is in a mold-closing state, the concave end of the mold core is located in the mold cavity. The present application improves the overall sealing performance of the six-way valve.

Description

Technical Field

[0001] The present application relates to the field of molds, and in particular to a thermal management multi-way valve molding mold and molding process. Background Art

[0002] With the development of the electric vehicle industry, thermal management systems are gaining increasing attention to meet the needs of battery cooling in high-temperature environments and heating in low-temperature environments. The thermal management system of an electric vehicle primarily consists of a cooling circuit, of which the six-way valve is a key component. It cools the electrical components during the operation of the electric vehicle, ensuring that the temperature of various electrical components remains within the appropriate range. Therefore, the sealing performance of the six-way valve is crucial to the thermal management system of electric vehicles.

[0003] Reference Figure 1 and Figure 2 A six-way valve 1 is disclosed in the related art. The six-way valve 1 includes a flat surface 11, a recessed surface 12 and four side surfaces 13. The flat surface 11 of the six-way valve 1 is a planar structure. The recessed surface 12 of the six-way valve 1 has multiple irregular recessed grooves 14. Two opposite side surfaces 13 of the six-way valve 1 are provided with a pipe 15, and the other two opposite side surfaces 13 of the six-way valve 1 are provided with two pipes 15.

[0004] During the process of conveying liquid in the cooling circuit, the sealing performance of the six-way valve 1 is extremely demanding. When the flatness of the flat surface 11 of the six-way valve 1 is greater than 0.3 mm, it is easy to affect the overall sealing performance of the six-way valve 1. During the process of conveying liquid, the six-way valve 1 is not only prone to bubbles, but also prone to liquid leakage. Summary of the Invention

[0005] In order to improve the overall sealing performance of the six-way valve, the present application provides a thermal management multi-way valve molding die and molding process.

[0006] In the first aspect, the present application provides a thermal management multi-way valve forming die adopting the following technical solution:

[0007] A thermal management multi-way valve molding die comprises a fixed die and a movable die; the fixed die comprises a fixed die core, a first molding groove being formed on the fixed die core; the movable die comprises a movable platen and a movable die seat, the movable platen and the movable die seat being slidably engaged, an anti-slip assembly being provided between the movable die seat and the movable platen; a movable die core is provided in the movable platen, a second molding groove being fixedly provided on the movable die core; when the thermal management multi-way valve molding die is in a closed mold state, the first molding groove and the second molding groove enclose a closed mold cavity, the mold cavity being used for injection molding a six-way valve;

[0008] A first pipe groove is formed on the fixed mold core, and a second pipe groove is formed on the movable mold core; when the thermal management multi-way valve forming mold is in a mold closing state, the first pipe groove and the second pipe groove are enclosed to form a pipe groove, and the pipe groove is communicated with the mold cavity, and the pipe groove is used to form the pipe on the six-way valve;

[0009] The fixed mold is provided with a gate assembly, which is in communication with the mold cavity; the movable mold is provided with a plurality of embedded assemblies, which are used to form the pipes on the side of the six-way valve;

[0010] The movable mold also includes a mold core, which passes through the movable mold core and is slidably matched with the movable mold core; the mold core is provided with a concave end; when the thermal management multi-way valve molding mold is in a mold closing state, the concave end of the mold core is located in the mold cavity, and the concave end is used to form a groove on the concave surface of the six-way valve.

[0011] By adopting the above technical solution, the injection molding machine is first used to drive the movable mold to move in the direction away from the fixed mold, so that the thermal management multi-way valve molding mold is in an open mold state; then the automatic nut loading machine is used to automatically transport the corresponding nut to the first molding groove or the second molding groove; then the embedded component is embedded in the mold cavity; the injection molding machine is used to drive the movable mold to move in the direction close to the fixed mold, so that the thermal management multi-way valve molding mold is in a closed mold state; then the molten material is injected into the mold cavity through the gate assembly, and the mold is used to injection mold the six-way valve, and at the same time, the pipe groove is used to form the pipe on the six-way valve; when opening the mold, the injection molding machine is first used to drive the movable template to move in the direction close to the fixed mold, and the movable template drives the movable mold core to move in the direction close to the fixed mold, and the movable mold core drives the six-way valve to move in the direction close to the fixed mold; in this process, the position of the movable mold base remains unchanged and the movable template moves in the opposite direction away from the movable mold base, so the position of the mold core remains unchanged, and at the same time the movable template and the movable mold core The mold core moves toward the direction close to the fixed mold, so that the concave end of the mold core is separated from the six-way valve, and the product is ejected for the first time through the movable mold plate and the movable mold core; then the injection molding machine drives the movable mold base to move toward the direction close to the fixed mold, and the movable mold base simultaneously drives multiple ejectors to move toward the direction close to the fixed mold, and the six-way valve is ejected from the second molding groove through multiple ejectors, so as to eject the product for the second time; then the embedded component is separated from the six-way valve, so as to remove the six-way valve from the mold; then the three-dimensional element is used to detect the flatness of the flat surface of the six-way valve, and at the same time, it is judged whether the flatness of the flat surface of the six-way valve is qualified; when the flatness of the flat surface of the six-way valve is less than 0.3mm, the flatness of the flat surface of the six-way valve is qualified; when the flatness of the flat surface of the six-way valve is greater than 0.3mm, the spark machine is used to discharge the smooth area of ​​the fixed mold core, so that the flatness of the smooth area of ​​the fixed mold core is less than 0.3mm, so that the formed six-way valve meets the production requirements.

[0012] Optionally, a smooth area is provided at the bottom of the first forming groove, and the flatness of the surface of the smooth area is less than 0.3 mm.

[0013] By adopting the above technical solution, since the flatness of the smooth area of ​​the flat surface of the six-way valve is less than 0.3, the overall sealing of the six-way valve is increased during use. Therefore, the six-way valve will not leak during use and will not generate bubbles.

[0014] Optionally, the smooth area includes a plurality of smooth partitions, and the smooth partitions have different surface flatnesses.

[0015] By adopting the above technical solution, since the smooth area includes multiple smooth partitions, the smooth partitions have different surface flatnesses, thereby increasing the difficulty of forming the smooth area.

[0016] Optionally, the movable template is provided with an anti-slip groove and a through-hole that are interconnected; the anti-slip assembly includes an anti-slip block and a connecting rod, one end of the connecting rod is fixedly connected to the anti-slip block, the other end of the connecting rod passes through the anti-slip groove and the through-hole in sequence, and one end of the connecting rod passing through the through-hole is fixedly connected to the movable mold base; when the surface of the movable template abuts against the surface of the movable mold base, there is a movement gap between the anti-slip block and the bottom of the anti-slip groove.

[0017] By adopting the above technical solution, during the movement of the movable template toward the direction close to the fixed mold, the movable template not only slides relative to the connecting rod, but also slides relative to the anti-slip block. Since there is a movement gap between the anti-slip block and the bottom of the anti-slip groove, after the movable template moves a distance away from the movable mold base, when the movable template continues to move toward the direction close to the fixed mold, since the bottom of the anti-slip groove abuts against the surface of the anti-slip block, the movable template drives the movable mold base to move toward the direction close to the fixed mold.

[0018] Optionally, the size of the movement gap is 3mm-8mm.

[0019] By adopting the above technical solution, when the movable mold plate moves 3mm-8mm in the opposite direction toward the fixed mold, it will drive the movable mold base to move toward the fixed mold.

[0020] Optionally, the embedding component includes a sliding seat, a driving member and an embedding rod; a sliding groove is provided on the movable mold, and the sliding seat slides in cooperation with the sliding groove; the driving member is arranged on the movable mold, and the driving member is used to drive the sliding seat to move toward or away from the cavity, and the embedding rod is fixed to the side of the sliding seat close to the cavity.

[0021] By adopting the above technical solution, when the driving member drives the sliding seat to move toward or away from the mold cavity, the sliding seat will drive the embedded rod to move toward or away from the mold cavity; at the same time, combined with the first pipe groove and the second pipe groove, it is possible to process a pipe on the side of the six-way valve.

[0022] Optionally, inner side walls of the first tube groove and the second tube groove are both provided with smooth curved surfaces, and the smooth curved surfaces have a mirror reflection effect.

[0023] By adopting the above technical solution, since the inner side walls of the first tube groove and the second tube groove are both provided with smooth curved surfaces, the smooth curved surfaces have a mirror reflection effect, thereby facilitating the processing of a smooth curved surface on the arc-shaped outer side wall of the pipe end.

[0024] In a second aspect, the present application provides a molding process for a thermal management multi-way valve molding die, comprising the following steps:

[0025] Step 1: Using an injection molding machine to drive the movable mold to move in a direction away from the fixed mold, so that the thermal management multi-way valve molding mold is in an open mold state;

[0026] Step 2: Using an automatic nut loading machine to automatically move the corresponding nut into the first forming groove or the second forming groove;

[0027] Step 3: The driving member drives the sliding seat to move toward the direction close to the mold cavity, and the sliding seat drives the embedded rod to move into the mold cavity;

[0028] Step 4: Using an injection molding machine to drive the movable mold to move toward the fixed mold, so that the thermal management multi-way valve molding mold is in a mold closing state;

[0029] Step 5: injecting molten material into the mold cavity through the gate assembly;

[0030] Step 6: Cooling and forming the six-way valve;

[0031] Step 7: During the mold opening process, the injection molding machine is used to drive the movable platen to move 6mm-15mm toward the fixed mold. First, the movable platen drives the movable mold core to move toward the fixed mold. Then, the movable mold core drives the six-way valve to move 6mm-15mm toward the fixed mold, so that the concave end of the mold core and the six-way valve are separated from each other.

[0032] Step eight: the driving member drives the sliding seat to move in a direction away from the mold cavity, and the sliding seat drives the embedded rod to move in a direction away from the mold cavity, so that the embedded rod and the six-way valve are separated from each other;

[0033] Step nine: The injection molding machine then drives the movable mold base to move toward the fixed mold, and the movable mold base simultaneously drives multiple ejectors to move toward the fixed mold, and uses the multiple ejectors to eject the six-way valve from the second molding groove.

[0034] Step 10: Use the three-dimensional element to detect the flatness of the flat surface of the six-way valve, and at the same time determine whether the flatness of the flat surface of the six-way valve is qualified;

[0035] Step 11: When the flatness of the flat surface of the six-way valve is less than 0.3 mm, the flatness of the flat surface of the six-way valve is qualified; when the flatness of the flat surface of the six-way valve is greater than 0.3 mm, the unqualified points in the smooth area of ​​the fixed mold core are discharged and leveled by a spark machine so that the flatness of all points in the smooth area is less than 0.3 mm.

[0036] By adopting the above technical solution, the injection molding machine is first used to drive the movable mold to move in the direction away from the fixed mold, so that the thermal management multi-way valve molding mold is in an open mold state; then the automatic nut loading machine is used to automatically transport the corresponding nut to the first molding groove or the second molding groove; then the driving member drives the sliding seat to move in the direction close to the mold cavity, and the sliding seat drives the embedding rod to move in the direction close to the mold cavity, so that it is embedded in the mold cavity; the injection molding machine is used to drive the movable mold to move in the direction close to the fixed mold, so that the thermal management multi-way valve molding mold is in a closed mold state; then the molten material is injected into the mold cavity through the gate assembly, and the mold is used to injection mold the six-way valve, and at the same time, the pipe groove is used to form the pipe on the six-way valve; when opening the mold, the injection molding machine is first used to drive the movable template to move in the direction close to the fixed mold, and the movable template drives the movable mold core to move in the direction close to the fixed mold, and the movable mold core drives the six-way valve to move in the direction close to the fixed mold; in this process, the position of the movable mold seat remains unchanged and the movable template moves in the opposite direction away from the movable mold seat, so the position of the mold core remains unchanged, and at the same time, the movable template and the movable mold The core moves toward the direction close to the fixed mold, so that the concave end of the mold core and the six-way valve are separated from each other, and the product is ejected for the first time through the movable platen and the movable mold core; then the injection molding machine drives the movable mold base to move toward the direction close to the fixed mold, and the movable mold base simultaneously drives multiple ejectors to move toward the direction close to the fixed mold, and the six-way valve is ejected from the second molding groove through multiple ejectors, so that the product is ejected for the second time; then the driving member drives the sliding seat to move toward the direction away from the cavity, and the sliding seat drives the embedded rod to move toward the direction away from the cavity, so that the product is ejected for the second time. The embedded rod and the six-way valve are separated from each other, thereby realizing that the six-way valve is taken out from the mold; then the three-dimensional element is used to detect the flatness of the flat surface of the six-way valve, and at the same time, it is judged whether the flatness of the flat surface of the six-way valve is qualified; when the flatness of the flat surface of the six-way valve is less than 0.3mm, the flatness of the flat surface of the six-way valve is qualified; when the flatness of the flat surface of the six-way valve is greater than 0.3mm, the spark machine is used to discharge the smooth area of ​​the fixed mold core, so that the flatness of the smooth area of ​​the fixed mold core is less than 0.3mm, so that the formed six-way valve meets the production requirements.

[0037] Optionally, when the flatness of the flat surface of the six-way valve is greater than 0.3 mm, the discharge principle of the spark machine is as follows: when there is a pit on the flat surface of the six-way valve, the spark machine is used to discharge the position corresponding to the smooth area to process a protrusion, and the height of the protrusion is greater than the depth of the pit; when there is a flange on the flat surface of the six-way valve, the spark machine is used to discharge the position corresponding to the smooth area to process a groove, and the depth of the groove is greater than the depth of the flange.

[0038] By adopting the above technical solution, when there are pits on the flat surface of the six-way valve, the spark machine is used to discharge the corresponding position of the smooth area to process a protrusion. Since the height of the protrusion is greater than the depth of the pit; at the same time, when there is a flange on the flat surface of the six-way valve, the spark machine is used to discharge the corresponding position of the smooth area to process a groove. The depth of the groove is greater than the depth of the flange. At this time, in the process of forming the six-way valve using the fixed mold core after discharge, although new protrusions and grooves will still be generated in the smooth area of ​​the movable mold core, the flatness of the smooth area of ​​the movable mold core after the spark machine discharge is less than 0.3mm. The molten material is ductile. At the same time, the formed six-way valve also has the principle of thermal expansion and contraction. Therefore, after molding, the pits on the flat surface of the formed six-way valve will expand back when heated; at the same time, after the flange on the flat surface of the formed six-way valve is cooled, the height of the flange will be further reduced, thereby ensuring that the overall flatness of the flat surface of the formed six-way valve is less than 0.3mm, thereby improving the overall sealing of the six-way valve.

[0039] In summary, this application includes at least one of the following beneficial technical effects:

[0040] The concave pressing end is used to form a groove on the concave surface of the six-way valve.

[0041] 1. By adopting the above technical solution, the injection molding machine is first used to drive the movable mold to move in the direction away from the fixed mold, so that the thermal management multi-way valve molding mold is in the mold opening state; then the automatic nut loading machine is used to automatically transport the corresponding nut to the first molding groove or the second molding groove; then the embedded component is embedded in the mold cavity; the injection molding machine is used to drive the movable mold to move in the direction close to the fixed mold, so that the thermal management multi-way valve molding mold is in the mold closing state; then the molten material is injected into the mold cavity through the gate assembly, and the mold is used to injection mold the six-way valve, and at the same time, the pipe groove is used to form the pipe on the six-way valve; when opening the mold, the injection molding machine is first used to drive the movable template to move in the direction close to the fixed mold, and the movable template drives the movable mold core to move in the direction close to the fixed mold, and the movable mold core drives the six-way valve to move in the direction close to the fixed mold; in this process, the position of the movable mold base remains unchanged and the movable template moves in the opposite direction away from the movable mold base, so the position of the mold core remains unchanged, and at the same time, the movable template and The movable mold core moves toward the direction close to the fixed mold, so that the concave end of the mold core and the six-way valve are separated from each other, and the product is ejected for the first time through the movable mold plate and the movable mold core; then the injection molding machine drives the movable mold base to move toward the direction close to the fixed mold, and the movable mold base simultaneously drives multiple ejectors to move toward the direction close to the fixed mold, and the six-way valve is ejected from the second molding groove through multiple ejectors, so as to realize the second ejection of the product; then the embedded component and the six-way valve are separated from each other, so as to realize the removal of the six-way valve from the mold; then the three-dimensional element is used to detect the flatness of the flat surface of the six-way valve, and at the same time, it is judged whether the flatness of the flat surface of the six-way valve is qualified; when the flatness of the flat surface of the six-way valve is less than 0.3mm, the flatness of the flat surface of the six-way valve is qualified; when the flatness of the flat surface of the six-way valve is greater than 0.3mm, the spark machine is used to discharge the smooth area of ​​the fixed mold core, so that the flatness of the smooth area of ​​the fixed mold core is less than 0.3mm, so that the formed six-way valve meets the production requirements;

[0042] 2. Since the flatness of the smooth area of ​​the flat surface of the six-way valve is less than 0.3, the overall sealing of the six-way valve is increased during use. Therefore, the six-way valve will not leak during use and will not generate bubbles;

[0043] 3. When there are pits on the flat surface of the six-way valve, the spark machine is used to discharge the corresponding position of the smooth area to process a protrusion. Since the height of the protrusion is greater than the depth of the pit; at the same time, when there is a flange on the flat surface of the six-way valve, the spark machine is used to discharge the corresponding position of the smooth area to process a groove. The depth of the groove is greater than the depth of the flange. At this time, in the process of forming the six-way valve using the fixed mold core after discharge, although new protrusions and grooves will still appear in the smooth area of ​​the movable mold core, the flatness of the smooth area of ​​the movable mold core after the spark machine discharge is less than 0.3mm. The molten material is ductile, and the formed six-way valve also has the principle of thermal expansion and contraction. Therefore, after forming, the pits on the flat surface of the formed six-way valve will expand when heated; at the same time, after the flange on the flat surface of the formed six-way valve is cooled, the height of the flange will be further reduced, thereby ensuring that the overall flatness of the flat surface of the formed six-way valve is less than 0.3mm, thereby improving the overall sealing of the six-way valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a structural schematic diagram of the six-way valve from the first perspective in an embodiment of the present application.

[0045] Figure 2 It is a structural schematic diagram of the six-way valve from a second perspective in an embodiment of the present application.

[0046] Figure 3 It is a structural schematic diagram of the thermal management multi-way valve forming mold in an embodiment of the present application.

[0047] Figure 4 It is a cross-sectional view of the thermal management multi-way valve forming mold in an embodiment of the present application.

[0048] Figure 5 It is a cross-sectional view from another perspective of the thermal management multi-way valve forming mold in the embodiment of the present application.

[0049] Figure 6 It is a structural schematic diagram of the mold core in an embodiment of the present application.

[0050] Figure 7 It is a structural schematic diagram of the fixed mold core in an embodiment of the present application.

[0051] Figure 8 It is a structural diagram of the embedded components in the embodiment of the present application.

[0052] Figure 9 It is a structural schematic diagram of the first cooling component and the second cooling component in an embodiment of the present application.

[0053] Figure 10 It is a structural schematic diagram of the anti-slip component in an embodiment of the present application.

[0054] Description of reference numerals:

[0055] 1. Six-way valve; 11. Flat surface; 12. Concave surface; 13. Side surface; 14. Concave groove; 15. Pipeline; 16. Connecting groove; 17. Reinforcement rib; 2. Fixed mold; 21. Top plate; 22. Connecting plate; 23. Fixed mold plate; 231. First mounting groove; 232. Connecting hole; 24. Fixed mold core; 241. First molding groove; 242. First pipe groove; 243. Smooth area; 244. Smooth partition; 245. Flat area; 3. Moving mold; 31. Moving mold plate; 311. Anti-slip groove; 312. Through hole; 313. Movement gap; 314. Sliding groove; 315. First Second mounting groove; 32, movable mold base; 321, bottom plate; 322, support plate; 323, pad; 324, load-bearing plate; 325, guide column; 326, positioning groove; 33, movable mold core; 331, second molding groove; 332, second pipe groove; 34, mold core; 341, positioning end; 342, concave end; 35, ejector pin; 4, gate assembly; 5, embedded assembly; 51, sliding seat; 52, driving part; 53, embedded rod; 6, anti-slip assembly; 61, anti-slip block; 62, connecting rod; 7, resin shutter; 8, smooth curved surface; 9, cooling water channel; 91, cooling water pipe. DETAILED DESCRIPTION

[0056] The following is combined with Figure 1-10 This application is described in further detail.

[0057] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. Unless otherwise defined, technical or scientific terms used in this application should have the common meanings understood by those skilled in the art to which this application belongs. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are simply used to distinguish different components.

[0058] The embodiment of the present application discloses a thermal management multi-way valve forming die. Figure 3 The thermal management multi-way valve molding mold includes a fixed mold 2 and a movable mold 3.

[0059] Reference Figure 3 and Figure 4 The fixed mold 2 includes a top plate 21, a connecting plate 22 and a fixed mold plate 23 connected in sequence. A first mounting groove 231 is provided on the side of the fixed mold plate 23 close to the fixed mold 2. The outer wall of the movable mold core 33 and the fixed mold core 24 abuts against the inner wall of the first mounting groove 231. The first mounting groove 231 has a positioning function for the fixed mold core 24. The fixed mold core 24 is fixedly connected to the fixed mold plate 23. A first molding groove 241 is provided on the side of the movable mold core 33 and the fixed mold core 24 close to the movable mold 3.

[0060] Reference Figure 3 and Figure 4The movable mold 3 includes a movable platen 31 and a movable mold base 32. The movable platen 31 and the movable mold base 32 are slidably engaged. Furthermore, the movable mold base 32 includes a base plate 321. Two support plates 322 are fixedly provided on the side of the base plate 321 close to the fixed mold 2. The two support plates 322 are parallel to each other. Two pads 323 are fixedly provided between the two support plates 322. The two pads 323 are located between the two support plates 322, and the height of the two support plates 322 is greater than the height of the two pads 323. A supporting plate 324 is fixedly provided on the side of the two support plates 322 close to the fixed mold 2. Four guide posts 325 are also fixedly provided on the surface of the pads 323. The four guide posts 325 all pass through the supporting plate 324. At the same time, the four guide posts 325 pass through the movable platen 31. The movable platen 31 and the four guide posts 325 slidably engage with each other, so that the movable platen 31 can move toward or away from the movable mold base 32.

[0061] Reference Figure 5 The fixed mold 2 and the movable mold 31 are connected through a resin shutter 7. The resin shutter is an injection mold accessory. Its main function is to control the opening and closing sequence between the fixed mold 2 and the movable mold 3 of the mold, ensuring that the mold can be opened and closed in a preset sequence during the injection molding process. Specifically, the resin shutter can be opened in advance when the mold is parted, providing space for the ejection of the plastic product, while preventing the mold from being accidentally opened during the ejection process, ensuring the safety of operation and the integrity of the product. In this embodiment, the number of resin shutters 7 is four, and the four resin shutters 7 are distributed in a rectangular array. Specifically, one end of each resin shutter 7 close to the movable mold 3 is inserted into the movable mold 31 and fixedly connected to the movable mold 31; correspondingly, four connecting holes 232 are provided on the side of the fixed mold 23 close to the movable mold 3, and the other end of the resin shutter 7 slides with the connecting hole 232. The resin shutter 7 has the property of being hot and cold and shrinking. When it is necessary to connect the fixed mold 2 and the movable mold plate 31, the injection molding machine drives the movable mold plate 31 to move toward the direction close to the fixed mold plate 23. The movable mold plate 31 simultaneously drives the resin shutter 7 to be inserted into the connecting hole 232. When the resin shutter 7 expands due to heat, the fixed mold plate 23 and the movable mold plate 31 are connected together. When the resin shutter 7 cools and returns to its original state, the fixed mold plate 23 and the movable mold plate 31 can be separated from each other.

[0062] Reference Figure 4 A second mounting groove 315 is provided on the side of the movable template 31 close to the fixed mold 2, and the movable mold core 33 is installed in the second mounting groove 315. The second molding groove 331 is fixedly provided on the movable mold core 33; when the thermal management multi-way valve molding mold is in the mold closing state, the first molding groove 241 and the second molding groove 331 are enclosed to form a closed cavity, and the cavity is used for injection molding the six-way valve 1.

[0063] Reference Figure 4 and Figure 6The movable mold 3 also includes a mold core 34. A positioning end 341 is provided at the end of the mold core 34 away from the fixed mold 2. A positioning groove 326 is provided on the side of the carrier plate 324 close to the movable mold plate 31, and the positioning end 341 is installed in the positioning groove 326. The positioning groove 326 has a positioning effect on the mold core 34, which increases the efficiency of the staff in installing the mold core 34 on the carrier plate 324. A concave end 342 is provided at the end of the mold core 34 close to the mold cavity. When the thermal management multi-way valve molding mold is in the mold closing state, the concave end 342 of the mold core 34 is located in the mold cavity, and the concave end 342 is used to form the groove of the concave surface 12 of the six-way valve 1 (combined with Figure 2 ).

[0064] Reference Figure 4 The movable mold 3 also includes a plurality of ejector pins 35, one end of which is fixedly connected to the pad 323, and the other end of which passes through the pad 323, the supporting plate 324, the movable plate 31 and the movable mold 3 in sequence. When the mold is opened, the movable mold base 32 is driven to move by the injection molding machine, and the movable mold base 32 facilitates the ejection of the six-way valve 1 from the movable mold 3 during the movement.

[0065] Reference Figure 7 The bottom of the first forming groove 241 is provided with a smooth area 243, and the surface flatness of the smooth area 243 is less than 0.3 mm. Since the smooth area 243 of the flat surface 11 of the six-way valve 1 has a flatness of less than 0.3, the overall sealing performance of the six-way valve 1 is improved during use. Therefore, the six-way valve 1 will not only prevent water leakage during use, but also prevent the generation of bubbles.

[0066] Continue to refer to Figure 7 The bottom of the first forming groove 241 is also provided with a flat area 245. During the process of forming the movable mold core 33 and the fixed mold core 24, the flat area 245 and the smooth area 243 are polished to improve the flatness of the flat area 245 and the smooth area 243. At the same time, the smooth area 243 of the movable mold core 33 and the fixed mold core 24 is discharged by a spark machine to make the flatness of the smooth area 243 less than 0.3mm.

[0067] Continue to refer to Figure 7 The smooth area 243 includes a plurality of smooth subareas 244 , each of which has a different surface flatness. Since the smooth area 243 includes a plurality of smooth subareas 244 , each of which has a different surface flatness, the difficulty of forming the smooth area 243 is increased.

[0068] Reference Figure 1The flat surface 11 of the six-way valve 1 is further provided with six communication grooves 16, which are arranged at equal intervals along the circumferential direction, with reinforcing ribs 17 formed between adjacent communication grooves 16. There are also six pipes 15 on the side surface 13 of the six-way valve 1, each corresponding to one of the communication grooves 16, with one end of each pipe 15 communicating with the communication groove 16.

[0069] Reference Figure 7 Correspondingly, the multiple smooth partitions 244 are distributed like tree rings, with gaps existing between the smooth partitions 244 of each step. Since the multiple smooth partitions 244 are distributed like tree rings, there are gaps between the smooth partitions 244 of each step, which further increases the difficulty of forming the smooth partitions 244.

[0070] Reference Figure 7 and Figure 8 A first pipe groove 242 is formed on the fixed mold core 24, and a second pipe groove 332 is formed on the movable mold core 33. When the thermal management multi-way valve molding die is in the mold closing state, the first pipe groove 242 and the second pipe groove 332 enclose and form a pipe groove, which is connected to the mold cavity and is used to form the pipe 15 on the six-way valve 1.

[0071] Reference Figure 7 and Figure 8 The inner sidewalls of the first tube groove 242 and the second tube groove 332 are both provided with a smooth curved surface 8, which is achieved by polishing so that the smooth curved surface 8 has a mirror reflection effect. Since the inner sidewalls of the first tube groove 242 and the second tube groove 332 are both provided with a smooth curved surface 8, the smooth curved surface 8 has a mirror reflection effect, thereby facilitating the processing of a smooth curved surface on the outer sidewall of the arc-shaped end of the pipe 15 (combined with Figure 1 ).

[0072] Reference Figure 3 A gate assembly 4 is provided on the fixed mold 2, and the gate assembly 4 is connected to the cavity, and the molten material is injected into the cavity through the gate assembly 4.

[0073] Reference Figure 8, a plurality of embedded components 5 are provided on the movable mold 3, and the embedded components 5 are used to form the pipe 15 on the side 13 of the six-way valve 1. Specifically, each embedded component 5 includes a sliding seat 51, a driving member 52 and an embedded rod 53; a sliding groove 314 is provided on the movable mold 3, and the sliding seat 51 slides and cooperates with the sliding groove 314. The driving member 52 is provided on the movable mold 3, and the driving member 52 is used to drive the sliding seat 51 to move toward or away from the cavity, and the embedded rod 53 is fixed to the side of the sliding seat 51 close to the cavity. When the driving member 52 drives the sliding seat 51 to move toward or away from the cavity, the sliding seat 51 will drive the embedded rod 53 to move toward or away from the cavity. At the same time, combined with the first pipe groove 242 and the second pipe groove 332, it is possible to process the pipe 15 on the side 13 of the six-way valve 1 (combined with Figure 1 In this embodiment, the specific driving member 52 may be a cylinder, and the stroke of each cylinder may be controlled by a switch.

[0074] Continue to refer to Figure 8 In this embodiment, there are four embedded components 5 , all of which are disposed on the side of the movable platen 31 close to the fixed die 2 . In two opposing embedded components 5 , there is one embedded rod 53 on the sliding seat 51 , and in the other two opposing embedded components 5 , there are two embedded rods 53 on the sliding seat 51 . Furthermore, there is a one-to-one correspondence between the first tube groove 242 , the second tube groove 332 , and the embedded rods 53 .

[0075] Reference Figure 8 and Figure 9 In this embodiment, cooling water channels 9 are provided in the fixed mold 2, the movable mold 3, and the plurality of sliding seats 51. The cooling water channels 9 include a plurality of cooling water pipes 91. Both ends of each cooling water pipe 91 are interconnected with a water supply mechanism, and the water supply mechanism is used to contain coolant. During mold injection molding, the water supply mechanism preferentially injects a coolant at 150°C ± 40°C into the cooling water pipe 91. During the mold injection molding process, the cooling pipe 15 reaches an extremely hot effect. When the mold injection is completed and the mold is demolded, the cooling pipe 15 passes through the water supply mechanism and rapidly cools the coolant in the cooling water pipe 91 within 5s-15s, reducing the temperature of the coolant to -6°C ± 20°C, thereby achieving the effect of instantaneous cooling of the molded product, making the surface of the final six-way valve 1 smoother and more beautiful.

[0076] Reference Figure 10The movable platen 31 is provided with an anti-slip groove 311 and a through-hole 312 that are interconnected. An anti-slip assembly 6 is also provided between the movable die holder 32 and the movable die holder 31. Specifically, the anti-slip assembly 6 includes an anti-slip block 61 and a connecting rod 62. One end of the connecting rod 62 is fixedly connected to the anti-slip block 61, and the other end of the connecting rod 62 passes through the anti-slip groove 311 and the through-hole 312 in sequence. The end of the connecting rod 62 that passes through the through-hole 312 is fixedly connected to the movable die holder 32. When the surface of the movable die holder 31 abuts the surface of the movable die holder 32, a movement gap 313 exists between the anti-slip block 61 and the bottom of the anti-slip groove 311. During the movement of the movable template 31 toward the direction close to the fixed mold 2, the movable template 31 not only slides relative to the connecting rod 62, but also slides relative to the anti-slip block 61. Since there is a movement gap 313 between the anti-slip block 61 and the bottom of the anti-slip groove 311, after the movable template 31 moves a distance away from the movable mold base 32, when the movable template 31 continues to move toward the direction close to the fixed mold 2, since the bottom of the anti-slip groove 311 abuts against the surface of the anti-slip block 61, the movable template 31 drives the movable mold base 32 to move toward the direction close to the fixed mold 2.

[0077] Reference Figure 10 In this embodiment, the size of the movement gap 313 is 3mm-8mm. Specifically, the size of the movement gap 313 can be 3mm, 4mm, 5mm, 6mm, 7mm, or 8mm. When the movable platen 31 moves 3mm-8mm in the opposite direction toward the fixed die 2, it drives the movable die holder 32 to move toward the fixed die 2.

[0078] In a second aspect, the present application provides a molding process for a thermal management multi-way valve molding die, comprising the following steps:

[0079] Step 1: Use the injection molding machine to drive the movable mold 3 to move away from the fixed mold 2, so that the thermal management multi-way valve molding mold is in the mold open state;

[0080] Step 2: Use an automatic nut loading machine to automatically move the corresponding nut into the first forming groove 241 or the second forming groove 331;

[0081] Step 3: The driving member 52 drives the sliding seat 51 to move toward the mold cavity, and the sliding seat 51 drives the embedded rod 53 to move into the mold cavity;

[0082] Step 4: Use the injection molding machine to drive the movable mold 3 to move toward the fixed mold 2, so that the thermal management multi-way valve molding mold is in a mold closing state;

[0083] Step 5: Molten material is injected into the cavity through the gate assembly 4 (molten material, also known as molten plastic, is usually made by melting plastic, metal or other fusible materials at high temperature and has a certain degree of fluidity and plasticity. After injection, the molten material will cool and solidify inside the mold, eventually forming the desired product shape). The molten material here includes PPA66+30% GF (nylon+glass fiber) and other material formulas;

[0084] Step 6: Cooling and forming the six-way valve 1;

[0085] Step 7: During the mold opening process, the injection molding machine is first used to drive the movable platen 31 to move 6 mm to 15 mm toward the direction close to the fixed mold 2. The movable platen 31 drives the movable mold core 33 to move 6 mm to 15 mm toward the direction close to the fixed mold 2. The movable mold core 33 drives the six-way valve 1 to move 6 mm to 15 mm toward the direction close to the fixed mold 2, so that the concave end 342 of the mold core 34 is separated from the six-way valve 1, thereby achieving debonding.

[0086] Step 8: The driving member 52 drives the sliding seat 51 to move away from the cavity, and the sliding seat 51 drives the embedded rod 53 to move away from the cavity, so that the embedded rod 53 and the six-way valve 1 are separated from each other;

[0087] Step nine: Then, the injection molding machine drives the movable mold base 32 to move toward the direction close to the fixed mold 2. The movable mold base 32 also drives multiple ejectors 35 to move toward the direction close to the fixed mold 2. The multiple ejectors 35 are used to eject the six-way valve 1 from the second molding groove 331, thereby achieving demolding.

[0088] Step 10: Use the three-dimensional element to detect the flatness of the flat surface 11 of the six-way valve 1, and at the same time determine whether the flatness of the flat surface 11 of the six-way valve 1 is qualified; specifically, during the measurement, the three-dimensional element measures the height of each point, and the data is generated by generating lines from points, surfaces from lines, and entities from surfaces, so as to manufacture the movable mold core 33 and the fixed mold core 24 into entities;

[0089] Step 11: When the flatness of the flat surface 11 of the six-way valve 1 is less than 0.3 mm, the flatness of the flat surface 11 of the six-way valve 1 is qualified; when the flatness of the flat surface 11 of the six-way valve 1 is greater than 0.3 mm, the unqualified points in the smooth area 243 of the fixed mold core 24 are discharged and leveled by using a spark machine, so that the flatness of all points in the smooth area 243 is less than 0.3 mm;

[0090] Furthermore, when the flatness of the flat surface 11 of the six-way valve 1 is greater than 0.3 mm, the discharge principle of the spark machine is as follows: when there is a pit on the flat surface 11 of the six-way valve 1, the spark machine is used to discharge the position corresponding to the smooth area 243 to process a protrusion, and the height of the protrusion is greater than the depth of the pit; when there is a flange on the flat surface 11 of the six-way valve 1, the spark machine is used to discharge the position corresponding to the smooth area 243 to process a groove, and the depth of the groove is greater than the depth of the flange. When there is a pit on the flat surface 11 of the six-way valve 1, the spark machine is used to discharge the position corresponding to the smooth area 243 to process a protrusion. Since the height of the protrusion is greater than the depth of the pit; at the same time, when there is a flange on the flat surface 11 of the six-way valve 1, the spark machine is used to discharge the position corresponding to the smooth area 243 to process a groove. The depth of the groove is greater than the depth of the flange. At this time, in the process of forming the six-way valve 1 using the movable mold core 33 and the fixed mold core 24 after discharge, although the smooth area 243 of the movable mold core 33 will still produce new protrusions and grooves, after the spark machine is used, the grooves are formed. The flatness of the smooth area 243 of the movable mold core 33 after the flower machine discharge is less than 0.3mm, and the molten material has ductility. At the same time, the six-way valve 1 after molding also has the principle of thermal expansion and contraction. Therefore, after molding, the pits on the flat surface 11 of the molded six-way valve 1 will expand when heated; at the same time, after the flange of the flat surface 11 of the molded six-way valve 1 is cooled, the height of the flange will be further reduced, thereby ensuring that the overall flatness of the flat surface 11 of the molded six-way valve 1 is less than 0.3mm, thereby improving the overall sealing of the six-way valve 1.

[0091] The implementation principle of this embodiment is as follows: first, the injection molding machine is used to drive the movable mold 3 to move in the direction away from the fixed mold 2, so that the thermal management multi-way valve molding mold is in the mold opening state; then the automatic nut loading machine is used to automatically transport the corresponding nut to the first molding groove 241 or the second molding groove 331; then the driving member 52 is used to drive the sliding seat 51 to move in the direction close to the mold cavity, and the sliding seat 51 drives the embedding rod to move in the direction close to the mold cavity so that it is embedded in the mold cavity; the injection molding machine is used to drive the movable mold 3 to move in the direction close to the fixed mold 2, so that the thermal management multi-way valve molding mold is in the mold closing state; then, the gate assembly .... 4. Molten material is injected into the cavity, and the six-way valve 1 is injection-molded by the mold, and the pipeline 15 on the six-way valve 1 is formed by the pipeline groove. When the mold is opened, the injection molding machine is first used to drive the movable platen 31 to move toward the direction close to the fixed mold 2, and the movable platen 31 drives the movable mold core 33 to move toward the direction close to the fixed mold 2, and the movable mold core 33 drives the six-way valve 1 to move toward the direction close to the fixed mold 2. During this process, the position of the movable mold base 32 remains unchanged and the movable platen 31 moves in the opposite direction away from the movable mold base 32, so the position of the mold core 34 remains unchanged, and at the same time, the movable platen 31 and the movable mold core 33 move toward the direction close to the fixed mold 2. The concave end 342 of the mold core 34 is separated from the six-way valve 1, and the product is ejected for the first time through the movable mold plate 31 and the movable mold core 33; then the injection molding machine drives the movable mold base 32 to move in the direction close to the fixed mold 2, and the movable mold base 32 simultaneously drives the multiple ejector pins 35 to move in the direction close to the fixed mold 2, and the six-way valve 1 is ejected from the second molding groove 331 by the multiple ejector pins 35, thereby ejecting the product for the second time; then the driving member 52 is used to drive the sliding seat 51 to move in the direction away from the mold cavity, and the sliding seat 51 drives the embedded rod 53 to move in the direction away from the mold cavity, so that the embedded rod 53 is engaged with the six-way valve 1 They are separated from each other, thereby realizing taking the six-way valve 1 out of the mold; then the three-dimensional element is used to detect the flatness of the flat surface 11 of the six-way valve 1, and at the same time, it is judged whether the flatness of the flat surface 11 of the six-way valve 1 is qualified; when the flatness of the flat surface 11 of the six-way valve 1 is less than 0.3mm, the flatness of the flat surface 11 of the six-way valve 1 is qualified; when the flatness of the flat surface 11 of the six-way valve 1 is greater than 0.3mm, the spark machine is used to discharge the smooth area 243 of the movable mold core 33 and the fixed mold core 24, so that the flatness of the smooth area 243 of the movable mold core 33 and the fixed mold core 24 is less than 0.3mm, so that the formed six-way valve 1 meets the production requirements.

[0092] 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 thermal management multi-way valve forming die, characterized by: The invention comprises a fixed mold (2) and a movable mold (3); the fixed mold (2) comprises a fixed mold core (24), and a first molding groove (241) is provided on the fixed mold core (24); the movable mold (3) comprises a movable mold plate (31) and a movable mold base (32), the movable mold plate (31) and the movable mold base (32) are slidably matched, and an anti-slip component (6) is provided between the movable mold base (32) and the movable mold plate (31); a movable mold core (33) is provided in the movable mold plate (31), and a second molding groove (331) is fixedly provided on the movable mold core (33); when the thermal management multi-way valve molding mold is in a mold closing state, the first molding groove (241) and the second molding groove (331) enclose and form a closed mold cavity, and the mold cavity is used for injection molding the six-way valve (1); The fixed mold core (24) is provided with a first pipe groove (242), and the movable mold core (33) is provided with a second pipe groove (332); when the thermal management multi-way valve molding die is in a mold closing state, the first pipe groove (242) and the second pipe groove (332) enclose to form a pipe (15) groove, the pipe (15) groove is communicated with the mold cavity, and the pipe (15) groove is used to form the pipe (15) on the six-way valve (1); The fixed mold (2) is provided with a gate assembly (4), and the gate assembly (4) is connected to the mold cavity; the movable mold (3) is provided with a plurality of embedded assemblies (5), and the embedded assemblies (5) are used to form the pipeline (15) on the side (13) of the six-way valve (1), and the embedded assemblies (5) include a sliding seat (51), a driving member (52) and an embedded rod (53); The movable mold (3) further comprises a mold core (34), the mold core (34) passes through the movable mold core (33), and the mold core (34) and the movable mold core (33) are slidably matched; the mold core (34) is provided with a concave end (342); when the thermal management multi-way valve molding mold is in a mold closing state, the concave end (342) of the mold core (34) is located in the mold cavity, and the concave end (342) is used to form a groove on the concave surface (12) of the six-way valve (1); in the mold opening process, the injection molding machine is first used to drive the movable mold plate (31) to move 6mm-15mm in the direction close to the fixed mold (2), and then the movable mold core (33) is driven to move in the direction close to the fixed mold (2) by the movable mold plate (31), and then the movable mold core is driven to move in the direction close to the fixed mold (2) by the movable mold core. (33) drives the six-way valve (1) to move in a direction close to the fixed mold (2), so that the concave end (342) of the mold core (34) and the six-way valve (1) are separated from each other; the driving member (52) drives the sliding seat (51) to move in a direction away from the mold cavity, and the sliding seat (51) drives the embedded rod (53) to move in a direction away from the mold cavity, so that the embedded rod (53) and the six-way valve (1) are separated from each other; then, the injection molding machine drives the movable mold seat (32) to move in a direction close to the fixed mold (2), and the movable mold seat (32) simultaneously drives the multiple ejectors (35) to move in a direction close to the fixed mold (2), and the multiple ejectors (35) are used to eject the six-way valve (1) from the second molding groove (331).

2. The thermal management multi-way valve forming die according to claim 1, characterized in that: The bottom of the first forming groove (241) is provided with a smooth area (243), and the flatness of the surface of the smooth area (243) is less than 0.3 mm.

3. The thermal management multi-way valve forming die according to claim 2, characterized in that: The smooth area (243) includes a plurality of smooth subareas (244), and the smooth subareas (244) have different surface flatnesses.

4. The thermal management multi-way valve forming die according to claim 1, characterized in that: The movable plate (31) is provided with an anti-slip groove (311) and a through hole (312) that are interconnected; the anti-slip assembly (6) comprises an anti-slip block (61) and a connecting rod (62); one end of the connecting rod (62) is fixedly connected to the anti-slip block (61); the other end of the connecting rod (62) passes through the anti-slip groove (311) and the through hole (312) in sequence; one end of the connecting rod (62) passes through the through hole (312) and is fixedly connected to the movable die base (32); when the surface of the movable plate (31) abuts against the surface of the movable die base (32), a movement gap (313) exists between the anti-slip block (61) and the bottom of the anti-slip groove (311).

5. The thermal management multi-way valve forming die according to claim 4, characterized in that: The size of the movement gap (313) is 3mm-8mm.

6. The thermal management multi-way valve forming die according to claim 5, characterized in that: The movable mold (3) is provided with a sliding groove (314), and the sliding seat (51) is slidingly matched with the sliding groove (314); the driving member (52) is provided on the movable mold (3), and the driving member (52) is used to drive the sliding seat (51) to move toward or away from the mold cavity, and the embedded rod (53) is fixed to the side of the sliding seat (51) close to the mold cavity.

7. The thermal management multi-way valve forming die according to claim 5, characterized in that: The inner side walls of the first tube groove (242) and the second tube groove (332) are both provided with a smooth curved surface (8), and the smooth curved surface (8) has a mirror reflection effect.

8. A molding process using the thermal management multi-way valve molding die according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: using an injection molding machine to drive the movable mold (3) to move in a direction away from the fixed mold (2), so that the thermal management multi-way valve molding mold is in an open mold state; Step 2: using an automatic nut loading machine to automatically transport the corresponding nut into the first forming groove (241) or the second forming groove (331); Step 3: The driving member (52) drives the sliding seat (51) to move toward the direction close to the mold cavity, and the sliding seat (51) drives the embedded rod (53) to move into the mold cavity; Step 4: using an injection molding machine to drive the movable mold (3) to move toward the fixed mold (2), so that the thermal management multi-way valve molding mold is in a mold closing state; Step 5: injecting molten material into the mold cavity through the gate assembly (4); Step 6: Cooling and forming the six-way valve (1); Step 7: During the mold opening process, the injection molding machine is first used to drive the movable mold plate (31) to move 6 mm to 15 mm in the direction close to the fixed mold (2), and then the movable mold core (33) is driven by the movable mold plate (31) to move in the direction close to the fixed mold (2), and then the movable mold core (33) is driven by the six-way valve (1) to move in the direction close to the fixed mold (2), so that the concave end (342) of the mold core (34) and the six-way valve (1) are separated from each other; Step 8: The driving member (52) drives the sliding seat (51) to move in a direction away from the mold cavity, and the sliding seat (51) drives the embedded rod (53) to move in a direction away from the mold cavity, so that the embedded rod (53) and the six-way valve (1) are separated from each other; Step nine: Then, the injection molding machine drives the movable mold base (32) to move toward the direction close to the fixed mold (2), and the movable mold base (32) simultaneously drives the plurality of ejector pins (35) to move toward the direction close to the fixed mold (2), and the plurality of ejector pins (35) are used to eject the six-way valve (1) from the second molding groove (331); Step 10: Using a three-dimensional detector to detect the flatness of the smooth area (243) of the six-way valve (1), and at the same time, determine whether the flatness of the smooth area (243) of the six-way valve (1) is qualified; Step 11: When the flatness of the smooth area (243) of the six-way valve (1) is less than 0.3 mm, the flatness of the flat surface (11) of the six-way valve (1) is qualified; when the flatness of the smooth area (243) of the six-way valve (1) is greater than 0.3 mm, the unqualified points in the smooth area (243) of the fixed mold core (24) are discharged and leveled by using a spark machine, so that the flatness of all points in the smooth area (243) is less than 0.3 mm.

9. The forming process of the thermal management multi-way valve forming die according to claim 8, characterized in that: When the flatness of the smooth area (243) of the six-way valve (1) is greater than 0.3 mm, the discharge principle of the spark machine is as follows: when the flat surface (11) of the six-way valve (1) has a pit, the spark machine is used to discharge the position corresponding to the smooth area (243) to thereby process a protrusion, and the height of the protrusion is greater than the depth of the pit; when the flat surface (11) of the six-way valve (1) has a flange, the spark machine is used to discharge the position corresponding to the smooth area (243) to thereby process a groove, and the depth of the groove is greater than the depth of the flange.

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