A molding die for a bluetooth headset housing

By introducing a cooling cavity and cooling pipe into the molding die for the Bluetooth headset shell, the problem of high-temperature adhesion of the shell is solved by utilizing condensate circulation and heat dissipation components, achieving efficient cooling and demolding processes and improving the molding quality of the shell.

CN119328952BActive Publication Date: 2026-03-24DONGGUAN ZHIXUN PLASTIC ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-10-28
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Bluetooth headset shells are prone to sticking together due to excessively high temperatures during the high-pressure molding process, which increases the possibility of shell damage.

Method used

A molding die with a cooling chamber and cooling pipes was designed. The cooling of the earphone shell is accelerated by the circulation of condensate and heat dissipation components. The flow and sealing of condensate are ensured by electromagnets and sealing components. The heat dissipation of condensate in the cooling box is accelerated by a stirring rod and a fan.

Benefits of technology

This effectively reduces the possibility of the headphone shell sticking during demolding, improves the shell molding efficiency and cooling effect, and ensures the integrity of the shell.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a forming die for a Bluetooth earphone shell and belongs to the technical field of earphone forming processing, which comprises a die main bin, a forming die supporting element and a forming die element, the forming die element is rotationally connected to the forming die supporting element, cooling pipes are arranged in the forming die element, the two ends of the cooling pipes are fixedly connected with inlet pipes and outlet pipes, the input pipes and the output pipes are arranged through the side wall of the forming die supporting element, a cooling box is arranged beside the die main bin, the cooling box contains condensate, the input pipes and the output pipes are both communicated with the cooling box, a driving pump for driving the condensate to flow is arranged in the cooling box, and a heat dissipation assembly for dissipating heat of the condensate is arranged in the cooling box; two groups of connecting assemblies for connecting the input pipes with the inlet pipes and the output pipes with the outlet pipes are arranged in the die main bin. The application has the effect of accelerating the cooling efficiency of the earphone shell and reducing the possibility of adhesion of multiple earphone shells during demolding.
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Description

Technical Field

[0001] This application relates to the field of headphone molding technology, and in particular to a molding die for a Bluetooth headphone housing. Background Technology

[0002] With the advancement of technology, people can now enjoy music through Bluetooth headsets. Bluetooth headsets are popular because they use wireless signal transmission. They apply Bluetooth technology to hands-free devices, freeing users from the hassle of wires and allowing for easy and convenient calls in various ways. Since their introduction, Bluetooth headsets have been a valuable tool for mobile business professionals to improve efficiency.

[0003] Bluetooth headset shells are typically made of plastic and manufactured using high-pressure molding. The mold used for producing Bluetooth headset shells includes a main mold chamber. A molding support mold is slidably connected to the main mold chamber via an internal groove. The interior of the molding support mold is connected to the molding mold via a storage mechanism, which includes a motor. The motor is installed inside the molding support mold, and a first transmission rod is fixedly connected to the output end of the motor. A first bevel gear is welded to the end of the first transmission rod away from the motor. A rotating rod is inserted into the interior of the molding support mold via a bearing. A second bevel gear is sleeved on the surface of the rotating rod and meshes with the first bevel gear. The motor drives the molding mold to flip, causing multiple headset shells to be demolded simultaneously and fall into the molding support mold for storage. When multiple headset shells are demolded simultaneously, the shells may become hot and stick together, potentially causing damage to the shells. Summary of the Invention

[0004] In order to accelerate the cooling efficiency of the earphone shell and thus reduce the possibility of adhesion when multiple earphone shells are demolded, this application provides a molding die for a Bluetooth earphone shell.

[0005] The molding die for a Bluetooth headset shell provided in this application adopts the following technical solution:

[0006] A molding die for a Bluetooth headset housing includes a main mold chamber, a molding support mold, and a molding die. The molding support mold is slidably connected to the main mold chamber, and the molding die is rotatably connected to the molding support mold. A cooling chamber is formed within the molding die, and cooling pipes are arranged within the cooling chamber. Inlet and outlet pipes are fixedly connected to the two ends of each cooling pipe. An input pipe and an output pipe pass through the side wall of the molding support mold. A cooling box containing condensate is located next to the main mold chamber. Both the input and output pipes are connected to the cooling box. A drive pump for driving the condensate flow is located within the cooling box, and a heat dissipation component for cooling the condensate is located within the cooling box. A fixing component for fixing the molding die is provided on the molding support mold. Two sets of connecting components are provided within the main mold chamber for connecting the input pipe and the inlet pipe, and for connecting the output pipe and the outlet pipe.

[0007] By adopting the above technical solution, when workers are manufacturing the earphone shell, they first fix the molding mold to the molding support mold using fixing components. Then, they connect the input pipe and the inlet pipe, and the output pipe and the outlet pipe using two sets of connecting components. Next, the drive pump is started, and the condensate in the cooling tank circulates in the cooling pipe under the drive pump, absorbing the heat of the earphone shell and accelerating the molding efficiency of the earphone shell. The condensate that has absorbed heat returns to the cooling tank, and under the action of the heat dissipation components, the heat dissipation efficiency of the condensate in the cooling tank is accelerated, thereby accelerating the cooling effect of the earphone shell, improving the efficiency of the earphone shell cooling and molding, and reducing the possibility of sticking during demolding.

[0008] Preferably, the connecting assembly includes an electromagnet and a control component. The control component can control the energization state of the electromagnet. The inlet pipe and the outlet pipe are made of magnetic metal. The inner wall of the forming support and the inner wall of the main mold chamber are provided with a connecting groove along the same straight line. The input pipe passes through and slides in the connecting groove. The electromagnet is fixedly sleeved on the outer wall of the input pipe. A reset component for resetting the input pipe is provided in the connecting groove. The input pipe is inserted into the inlet pipe, and the electromagnet abuts against the inlet pipe. A sealing component for sealing the input pipe is provided in the inlet pipe.

[0009] By adopting the above technical solution, the workers fix the molding mold to the molding support mold using the fixing components, and fix the position so that the inlet pipe and the input pipe are aligned. At this time, the workers control the electromagnet through the control components. The electromagnet is magnetic and moves towards the inlet pipe. The movement of the electromagnet drives the input pipe to be inserted into the inlet pipe, and the electromagnet abuts against the port of the inlet pipe. The sealing component seals the interface, so that the condensate can flow into the cooling pipe in the cooling chamber to cool the headphone shell.

[0010] Preferably, the reset assembly includes a connecting block and a reset spring, the connecting block is fixedly connected to the inner wall of the connecting groove, and the two ends of the reset spring are respectively fixedly connected to the electromagnet and the connecting block.

[0011] By adopting the above technical solution, when the operator needs to drive the molded part to rotate for demolding, the operator needs to disconnect the connection between the inlet pipe and the input pipe. At this time, the operator disconnects the magnetism of the electromagnet through the control block. Under the elastic force of the return spring, the electromagnet moves towards the connecting block. The movement of the electromagnet drives the input pipe to move into the connecting groove, so that the input pipe moves away from the inlet pipe, making it easier for the operator to drive the molded part to rotate for demolding.

[0012] Preferably, the fixing component includes a fixing block, a first spring, and a pull block. The forming support mold has a storage groove, the fixing block slides in the storage groove, and the side wall of the forming mold has a fixing groove for the fixing block to be inserted into. The two ends of the first spring are fixedly connected to the fixing block and the inner wall of the storage groove, respectively. The pull block is fixedly connected to the fixing block and passes through and slides in the forming support mold.

[0013] By adopting the above technical solution, when the mold on the molding die is being manufactured, the fixing block is inserted into the fixing groove. When the mold needs to be demolded after cooling, the worker pulls the fixing block by pulling the pull block to compress the first spring and move it away from the molding die. Then the worker rotates the molding die to perform demolding. After the molding die rotates, the side wall of the molding die is fixed against the fixing block so that the fixing block is in the storage groove. When the molding die rotates to its original position, the fixing groove and the fixing block are aligned. At this time, the fixing block is inserted into the fixing groove under the action of the first spring, limiting the molding die from displacement, which facilitates the alignment of the input pipe and the inlet pipe.

[0014] Preferably, the sealing assembly includes a funnel-shaped sleeve and a magnetic ring. The funnel-shaped sleeve slides inside the inlet pipe. The end face of the electromagnet has a slot. The magnetic ring is fixedly connected to the slot. The funnel-shaped sleeve and the magnetic ring attract each other. The diameter of the input pipe gradually increases from the port. The funnel-shaped sleeve is fitted and abuts against the peripheral sidewall of the input pipe.

[0015] By adopting the above technical solution, when the input pipe is inserted into the inlet pipe, the input pipe is inserted into the funnel-shaped sleeve. As the electromagnet gradually approaches the inlet pipe, the input pipe is gradually inserted deeper into the funnel-shaped sleeve. When the electromagnet abuts against the inlet pipe, the magnetic ring in the slot attracts the funnel-shaped sleeve to move into the slot, thereby moving the funnel-shaped sleeve towards the end with the larger diameter of the input pipe. This causes the funnel-shaped sleeve to be clamped onto the peripheral wall of the input pipe, thus sealing the connection between the input pipe and the inlet pipe and reducing the leakage of condensate from the connection.

[0016] Preferably, a rubber ring is fixedly connected to the end of the funnel-shaped sleeve away from the magnetic ring, and the rubber ring abuts against the peripheral sidewall of the input pipe.

[0017] By adopting the above technical solution, the rubber ring can improve the sealing strength between the bucket-shaped sleeve and the input pipe.

[0018] Preferably, the heat dissipation assembly includes a motor and a stirring rod. The motor is fixedly installed on the side wall of the cooling tank, and the stirring rod is fixedly connected to the motor shaft. The stirring rod rotates in the condensate, and multiple heat dissipation holes are provided on the side wall of the cooling tank.

[0019] By adopting the above technical solution, the condensate that absorbs heat from the molded part enters the cooling box. The motor starts and drives the stirring rod to rotate. The rotation of the stirring rod accelerates the heat dissipation of the condensate in the cooling box.

[0020] Preferably, the main mold compartment has S-shaped cooling pipes arranged on the side wall near the cooling box. One end of each cooling pipe is connected to the output pipe, and the other end is connected to the inside of the cooling box. The input pipe is connected to the cooling box through a connecting pipe.

[0021] By adopting the above technical solution, the condensate containing heat flows out from the molded part and enters the cooling box after passing through the cooling pipes on the side wall of the main mold chamber. The S-shaped arrangement of the cooling pipes can increase the contact area with air and prolong the contact time with air, thereby accelerating the dissipation of heat in the condensate.

[0022] Preferably, a double-sided fan is installed on the side wall of the cooling box near the main mold compartment, with one side of the double-sided fan facing the inside of the cooling box and the other side facing the cooling pipe on the side wall of the main mold compartment.

[0023] By adopting the above technical solution, when the device is working, the double-sided fan can dissipate heat from the cooling pipes on the side wall of the main mold chamber on one side and from the inside of the cooling box on the other, thus accelerating the airflow inside the cooling box.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. When workers are manufacturing the earphone shell, they first fix the molding mold to the molding support mold using fixing components. Then, they connect the input pipe and the inlet pipe, and the output pipe and the outlet pipe using two sets of connecting components. Next, they start the drive pump. The condensate in the cooling tank circulates in the cooling pipe under the drive pump, absorbing the heat of the earphone shell and accelerating the molding efficiency of the earphone shell. The condensate after absorbing heat returns to the cooling tank. Under the action of the heat dissipation components, the heat dissipation efficiency of the condensate in the cooling tank is accelerated, thereby accelerating the cooling effect of the earphone shell, improving the efficiency of the earphone shell cooling and molding, and reducing the possibility of sticking during demolding.

[0026] 2. The operator uses a fixing component to fix the molding mold to the molding support mold, and fixes the position so that the inlet pipe and the input pipe are aligned. At this time, the operator controls the electromagnet through the control component. The electromagnet is magnetic and moves towards the inlet pipe. The movement of the electromagnet drives the input pipe to be inserted into the inlet pipe, and the electromagnet abuts against the port of the inlet pipe. The sealing component seals the interface, so that the condensate can flow into the cooling pipe in the cooling chamber to cool the headphone shell.

[0027] 3. The condensate that absorbs heat from the molded part enters the cooling box. The motor starts and drives the stirring rod to rotate. The rotation of the stirring rod accelerates the heat dissipation of the condensate in the cooling box. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of a molding die for a Bluetooth headset shell.

[0029] Figure 2 This is a top view cross-sectional structural diagram of the molding module in the embodiments of this application.

[0030] Figure 3 This is a side cross-sectional view of the overall structure of a molding die for a Bluetooth headset housing.

[0031] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0032] Figure 5 This is a structural schematic diagram of the prominent fixed component in this embodiment.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Mold main chamber; 2. Forming support mold component; 3. Forming mold component; 4. Cooling pipe; 5. Inlet pipe; 6. Outlet pipe; 7. Input pipe; 8. Output pipe; 9. Cooling box; 10. Drive pump; 11. Heat dissipation assembly; 12. Fixing assembly; 13. Connecting assembly; 14. Electromagnet; 15. Control component; 16. Connecting groove; 17. Reset assembly; 18. Sealing assembly; 19. Connecting block; 20. Reset spring; 21. Fixing block; 22. Pulling block; 23. First spring; 24. Fixing groove; 25. Storage groove; 26. Bucket-shaped sleeve; 27. Magnetic ring; 29. ​​Motor; 30. Stirring rod; 31. Heat dissipation hole; 32. Double-sided fan; 33. Connecting pipe; 34. Control valve; 35. Slide groove; 36. Slider. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0036] This application discloses a molding die for a Bluetooth headset housing, such as... Figure 1 and Figure 2 As shown, the mold includes a main mold chamber 1, a forming support mold 2, and a forming mold 3. The forming support mold 2 is slidably connected to the main mold chamber 1, and the forming mold 3 is rotatably connected to the forming support mold 2. A cooling chamber is provided inside the forming mold 3, and cooling pipes 4 are arranged within the cooling chamber. The cooling pipes 4 are folded and wound around the cooling chamber, thereby increasing the contact area between the cooling pipes 4 and the forming mold 3, and thus accelerating the heat dissipation effect of the forming mold 3. Inlet pipes 5 and outlet pipes 6 are fixedly welded to both ends of the cooling pipes 4. The inlet pipes 5 and outlet pipes 6 are made of magnetic metal, and the cooling pipes 4, inlet pipes 5 and outlet pipes 6 are locked into a cooling chamber, making them difficult to move.

[0037] like Figure 3 and Figure 4 As shown, the inner wall of the forming support mold 2 and the inner wall of the adjacent mold main chamber 1 are provided with connecting grooves 16 along the same straight line, and there are two connecting grooves 16. The input pipe 7 and the output pipe 8 pass through the two connecting grooves 16 respectively. Both the input pipe 7 and the output pipe 8 are provided with control valves 34. A cooling box 9 is provided next to the mold main chamber 1. The cooling box 9 contains condensate. The input pipe 7 and the output pipe 8 are both connected to the cooling box 9 through cooling pipes 4. A drive pump 10 for driving the flow of condensate is provided in the cooling box 9. A heat dissipation component 11 for dissipating heat from the condensate is provided in the cooling box 9. A fixing component 12 for fixing the forming mold is provided on the forming support mold 2. Two sets of connecting components 13 are provided in the mold main chamber 1 for connecting the input pipe 7 and the inlet pipe 5 and connecting the output pipe 8 and the outlet pipe 6.

[0038] like Figure 3 and Figure 4As shown, the two sets of connecting components 13 are identical. In this embodiment, only the connecting component 13 between the inlet pipe 5 and the input pipe 7 is briefly described. The connecting component 13 includes an electromagnet 14 and a control component 15. The electromagnet 14 is ring-shaped and is fixedly welded to the peripheral side wall of the input pipe 7. The control component 15 is fixedly installed on the molding mold 3. The control component 15 can control the energized state of the electromagnet 14. The input pipe 7 is driven to be inserted into the inlet pipe 5 for connection by the attraction between the specific magnetism of the electromagnet 14 and the inlet pipe 5. A sealing component 18 for sealing the input pipe 7 is provided in the inlet pipe 5. A reset component 17 for moving the input pipe 7 away from the inlet pipe 5 is provided in the connecting groove 16. The sealing component 18 includes a funnel-shaped sleeve 26 and a magnetic ring 27. The diameter of the funnel-shaped sleeve 26 increases from the inside to the outside. A groove 35 is opened on the inner wall of the inlet pipe 5. The groove 35 extends in an inclined direction. A slider 36 is fixedly welded to the side wall of the funnel-shaped sleeve 26. The cooperation between the slider 36 and the groove 35 can limit the movement range of the funnel-shaped sleeve 26. An electromagnet 14 has a slot on its end face near the funnel-shaped sleeve 26. The slot is ring-shaped, and a magnetic ring 27 is fixedly welded into the slot. The funnel-shaped sleeve 26 and the magnetic ring 27 attract each other, and the end of the funnel-shaped sleeve 26 with the largest diameter is inserted into the slot under the magnetic attraction. The diameter of the input pipe 7 increases from the port to the connection point near the cooling pipe 4. A rubber ring is fixedly connected to the end of the funnel-shaped sleeve 26 away from the magnetic ring 27, and the rubber ring is pressed against the side wall of the input pipe 7.

[0039] like Figure 3 and Figure 4 As shown, and in combination Figure 5 As shown, the reset assembly 17 includes a connecting block 19 and a reset spring 20. The connecting tube 33 is cylindrical. The connecting block 19 is sleeved on the input tube 7 and is fixedly welded to the inner wall of the connecting groove 16. The reset spring 20 is sleeved on the input tube 7 and its two ends are respectively fixedly welded to the opposite side walls of the electromagnet 14 and the connecting block 19. The fixing assembly 12 includes a fixing block 21, a first spring 23, and a pull block 22. The forming support mold 2 has a storage groove 25 in the horizontal direction. The fixing block 21 slides in the storage groove 25 in the horizontal direction. The side wall of the forming mold 3 has a fixing groove 24 for the fixing block 21 to be inserted. The two ends of the first spring 23 are respectively fixedly welded to the inner wall of the fixing block 21 and the storage groove 25. The pull block 22 is fixedly welded to the top of the fixing block 21 and passes through and slides on the forming support mold 2.

[0040] like Figure 5As shown, when the earphone shell on the molding mold 3 is being manufactured, the fixing block 21 is inserted into the fixing groove 24. When the mold needs to be demolded after cooling, the worker pulls the pulling block 22 to move the fixing block 21, which compresses the first spring 23, away from the molding mold 3. Then the worker rotates the molding mold 3 to demold it. When the molding mold 3 rotates, the side wall of the molding mold 3 slides against the fixing block 21, so that the fixing block 21 is in the storage groove 25. When the molding mold 3 rotates to its original position, the fixing groove 24 is aligned with the fixing block 21. At this time, the fixing block 21 is inserted into the fixing groove 24 under the action of the first spring 23, which limits the displacement of the molding mold 3. At the same time, the inlet pipe 5 and the input pipe 7 are aligned, which plays a guiding role.

[0041] like Figure 3 and Figure 5 As shown, the fixing component 12 aligns the inlet pipe 5 and the input pipe 7. At this time, the operator controls the electromagnet 14 through the control component 15. The electromagnet 14 is magnetic and moves towards the inlet pipe 5 due to magnetic attraction. The movement of the electromagnet 14 causes the input pipe 7 to be inserted into the inlet pipe 5 and into the funnel-shaped sleeve 26. As the electromagnet 14 gradually approaches the inlet pipe 5, the input pipe 7 is gradually inserted deeper into the funnel-shaped sleeve 26, and the electromagnet 14 abuts against the port of the inlet pipe 5. At this time, the magnetic ring 27 in the slot attracts the funnel-shaped sleeve 26 to move into the slot, thereby moving the funnel-shaped sleeve 26 towards the larger diameter end of the input pipe 7. This causes the rubber ring inside the smaller diameter end of the funnel-shaped sleeve 26 to be locked onto the side wall of the input pipe 7, thereby sealing the connection between the input pipe 7 and the inlet pipe 5. The rubber ring can improve the sealing strength between the funnel-shaped sleeve 26 and the input pipe 7 and reduce the possibility of condensate overflowing from the connection. Next, the staff opened the control valve 34 and started the drive pump 10 in the cooling box 9. The condensate in the cooling box 9 circulated in the cooling pipe 4 under the drive of the drive pump 10, absorbing the heat in the mold and accelerating the molding efficiency of the earphone shell. After absorbing the heat, the condensate returned to the cooling box 9 and under the action of the heat dissipation component 11, the heat dissipation efficiency of the condensate in the cooling box 9 was accelerated, thereby accelerating the cooling effect of the mold, improving the efficiency of mold cooling and molding, and reducing the possibility of sticking during demolding.

[0042] like Figure 1 and Figure 4As shown, when the molding mold 3 needs to be rotated for demolding, the operator needs to disconnect the connection between the inlet pipe 5 and the input pipe 7. At this time, the operator uses the drive pump 10 to recover the condensate into the cooling tank 9, closes the control valve 34, and then disconnects the magnetism of the electromagnet 14 through the control block. The electromagnet 14 moves towards the connecting block 19 under the elastic pull of the return spring 20. The movement of the electromagnet 14 drives the input pipe 7 to move into the connecting groove 16, so that the input pipe 7 moves away from the inlet pipe 5, making it easier for the operator to drive the molding mold 3 to rotate for demolding.

[0043] like Figure 1 and Figure 3 As shown, the heat dissipation assembly 11 includes a motor 29 and a stirring rod 30. The motor 29 is fixedly installed on the top wall of the cooling box 9, and the stirring rod 30 is fixedly welded to the rotating shaft of the motor 29. The stirring rod 30 passes through and rotates inside the cooling box 9, stirring the condensate. Multiple heat dissipation holes 31 are provided on the top side wall of the cooling box 9. Cooling pipes 4 are arranged in an S-shape on the side wall of the main mold chamber 1 near the cooling box 9. One end of the cooling pipe 4 is connected to the output pipe 8, and the other end is connected to the cooling box 9. The condensate that has absorbed heat in the cooling chamber is transported to the cooling box 9 through the cooling pipes 4. The S-shaped arrangement of the cooling pipes 4 can increase the contact area with air and prolong the contact time with air, thereby accelerating the dissipation of heat in the condensate. The input pipe 7 is connected to the cooling box 9 through connecting pipes 33, and the condensate cooled in the cooling box 9 is transferred to the cooling chamber in the molding mold 3. A double-sided fan 32 is installed on the side wall of the cooling box 9 near the main mold chamber 1. One side of the double-sided fan 32 is directed towards the inside of the cooling box 9, and the other side is directed towards the cooling pipe 4 on the side wall of the main mold chamber 1. This allows the fan to simultaneously dissipate heat from the cooling pipe 4 on the side wall of the main mold chamber 1, accelerating the airflow in the vicinity, and also dissipate heat from the inside of the cooling box 9, accelerating the airflow within the cooling box 9 and expelling the hot air through the heat dissipation holes 31. When the condensate that has absorbed heat in the molded part 3 enters the cooling box 9, the motor 29 starts, driving the stirring rod 30 to rotate. The rotation of the stirring rod 30 accelerates the heat dissipation of the condensate within the cooling box 9.

[0044] The implementation principle of this application embodiment is as follows: When the worker is making the mold, the worker first fixes the molding mold 3 to the molding support mold 2 through the fixing component 12. Then, the worker connects the input pipe 7 and the inlet pipe 5 through two sets of connecting components 13, and connects the output pipe 8 and the outlet pipe 6. Then, the drive pump 10 is started. The condensate in the cooling tank 9 circulates in the cooling pipe 4 under the drive of the drive pump 10, absorbing the heat of the mold and accelerating the molding efficiency. The condensate after absorbing heat returns to the cooling tank 9. Under the action of the heat dissipation component 11, the heat dissipation efficiency of the condensate in the cooling tank 9 is accelerated, thereby accelerating the cooling effect of the mold, improving the efficiency of mold cooling and molding, and reducing the possibility of sticking during demolding.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A molding die for a Bluetooth earphone shell, comprising a main die chamber (1), a molding support die (2), and a molding die (3), wherein the molding support die (2) is slidably connected to the main die chamber (1), and the molding die (3) is rotatably connected to the molding support die (2); characterized in that: The molding mold (3) has a cooling cavity, in which cooling pipes (4) are arranged. The two ends of the cooling pipes (4) are fixedly connected to an inlet pipe (5) and an outlet pipe (6). An input pipe (7) and an output pipe (8) are provided on the side wall of the molding support mold (2). A cooling box (9) is provided next to the main mold chamber (1). The cooling box (9) contains condensate. The input pipe (7) and the output pipe (8) are both connected to the cooling box (9). A drive pump (10) for driving the flow of condensate is provided in the cooling box (9). A heat dissipation component (11) for dissipating heat from the condensate is provided in the cooling box (9). A fixing component (12) for fixing the molding mold is provided on the molding support mold (2). Two sets of connecting components (13) for connecting the input pipe (7) and the inlet pipe (5) and connecting the output pipe (8) and the outlet pipe (6) are provided in the main mold chamber (1). The connecting assembly (13) includes an electromagnet (14) and a control component (15). The control component (15) can control the energization state of the electromagnet (14). The inlet pipe (5) and the outlet pipe (6) are made of magnetic metal. The inner wall of the forming support mold (2) and the inner wall of the mold main chamber (1) are provided with a connecting groove (16) along the same straight line. The input pipe (7) passes through and slides in the connecting groove (16). The electromagnet (14) is fixedly sleeved on the outer wall of the input pipe (7). A reset component (17) for resetting the input pipe (7) is provided in the connecting groove (16). The input pipe (7) is inserted into the inlet pipe (5). The electromagnet (14) abuts against the inlet pipe (5). A sealing component (18) for sealing the input pipe (7) is provided in the inlet pipe (5). The reset assembly (17) includes a connecting block (19) and a reset spring (20). The connecting block (19) is fixedly connected to the inner wall of the connecting groove (16), and the two ends of the reset spring (20) are fixedly connected to the electromagnet (14) and the connecting block (19) respectively. The fixing component (12) includes a fixing block (21), a first spring (23), and a pull block (22). The forming support mold (2) has a storage groove (25) inside. The fixing block (21) slides in the storage groove (25). The side wall of the forming mold (3) has a fixing groove (24) for the fixing block (21) to be inserted. The two ends of the first spring (23) are fixedly connected to the fixing block (21) and the inner wall of the storage groove (25) respectively. The pull block (22) is fixedly connected to the fixing block (21) and passes through and slides in the forming support mold (2).

2. The molding die for a Bluetooth headset housing according to claim 1, characterized in that: The sealing assembly (18) includes a funnel-shaped sleeve (26) and a magnetic ring (27). The funnel-shaped sleeve (26) slides inside the inlet pipe (5). The end face of the electromagnet (14) has a slot. The magnetic ring (27) is fixedly connected to the slot. The funnel-shaped sleeve (26) and the magnetic ring (27) attract each other. The diameter of the input pipe (7) gradually increases from the port. The funnel-shaped sleeve (26) is fitted and abuts against the peripheral sidewall of the input pipe (7).

3. The molding die for a Bluetooth headset housing according to claim 2, characterized in that: A rubber ring is fixedly connected to one end of the funnel-shaped sleeve (26) away from the magnetic ring (27), and the rubber ring abuts against the peripheral side wall of the input pipe (7).

4. The molding die for a Bluetooth headset housing according to claim 1, characterized in that: The heat dissipation assembly (11) includes a motor (29) and a stirring rod (30). The motor (29) is fixedly installed on the side wall of the cooling box (9). The stirring rod (30) is fixedly connected to the rotating shaft of the motor (29). The stirring rod (30) rotates in the condensate. Multiple heat dissipation holes (31) are provided on the side wall of the cooling box (9).

5. The molding die for a Bluetooth headset housing according to claim 4, characterized in that: The mold main chamber (1) has S-shaped cooling pipes (4) arranged on the side wall near the cooling box (9). One end of the cooling pipe (4) is connected to the output pipe (8), and the other end is connected to the cooling box (9). The input pipe (7) is connected to the cooling box (9) through the connecting pipe (33).

6. The molding die for a Bluetooth headset housing according to claim 5, characterized in that: A double-sided fan (32) is installed on the side wall of the cooling box (9) near the main mold compartment (1). One side of the double-sided fan (32) is directed towards the inside of the cooling box (9), and the other side is directed towards the cooling pipe (4) on the side wall of the main mold compartment (1).

Citation Information

Patent Citations

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