Bluetooth earphone battery protection layer forming die

Abstract

The utility model is suitable for bluetooth earphone manufacturing technical field provides a kind of bluetooth earphone battery protection layer forming die, including mould main part, mould main part includes working frame, fixed mould and movable mould, fixed mould is vertically installed in working frame, fixed mould has forming cavity, movable mould is provided with a plurality of blanking hole that is circumferentially distributed, blanking hole is linked with forming cavity;Feeding structure, feeding structure includes blanking pipe, feed cylinder and feed pipe, feed cylinder is connected in the upper end of blanking pipe and the lower end of feed cylinder, the lower end of each blanking pipe is linked with each blanking hole, the cross section of feed cylinder is set as circular platform shape;In the utility model, forming liquid is passed into feed cylinder by feed pipe, and flows to each blanking pipe, finally flows to forming cavity by each blanking hole;By setting multiple blanking pipes, to make the forming liquid distribution even in forming cavity, to ensure the thickness of battery protection layer after forming keeps consistent.

Description

Technical Field

[0001] This utility model belongs to the field of Bluetooth headset manufacturing technology, and in particular relates to a molding die for a Bluetooth headset battery protective layer. Background Technology

[0002] A Bluetooth headset is a wireless headset that connects to smartphones, tablets, or other Bluetooth-compatible devices via Bluetooth technology. It applies Bluetooth technology to hands-free headsets, freeing users from the constraints of wires. The Bluetooth headset battery is the component that provides power to the Bluetooth headset and ensures its normal operation. In the manufacturing process of Bluetooth headset batteries, in order to reduce the size of the battery and achieve waterproofing, a protective layer needs to be formed on its exterior through injection molding.

[0003] A search revealed a Chinese patent (publication number: CN215511994U) that discloses a molding die for a Bluetooth headset battery protective layer, which facilitates rapid demolding and improves the production efficiency of the protective layer. The die includes a base, a fixed mold, a first support block, a linear feed device, a moving mold, two sets of connecting rods, a connecting plate, and two sets of push rods. The fixed mold is fixedly mounted on the base via the first support block. A mounting plate is vertically mounted at one end of the base. A molding hole is located at the end of the fixed mold near the mounting plate. A mold column is located inside the molding hole, and the mold column is coaxial with the molding hole. The outer circumference of the mold column and the inner wall of the molding hole together form the molding cavity of the protective layer. The linear feed device is fixedly mounted on the mounting plate to drive the moving mold and the fixed mold to close and open. A groove is located at the end of the moving mold near the fixed mold for fitting and sleeved onto the mold column. A feed pipe is located inside the moving mold for injecting molding liquid into the molding cavity.

[0004] However, during the use of this device, the molding liquid is injected into the molding cavity through the feed pipe. Since Bluetooth headset batteries are usually cylindrical, the molding cavity is also cylindrical. The moving mold and the fixed mold of this device are placed horizontally. Under the action of gravity, the molding liquid in the molding cavity will flow to one side, and the feed pipe is not evenly distributed, which further leads to uneven distribution of the molding liquid in the molding cavity, resulting in uneven thickness of the battery protective layer after molding. Therefore, a Bluetooth headset battery protective layer molding mold is needed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide a molding die for a Bluetooth headset battery protective layer, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A mold for forming a battery protective layer for Bluetooth earphones, comprising:

[0008] The mold body includes a work frame, a fixed mold, and a moving mold. The fixed mold is vertically mounted on the work frame, and the moving mold is movably mounted on the work frame and positioned at a predetermined distance above the fixed mold. The fixed mold has a forming cavity, and the moving mold has a plurality of circumferentially distributed discharge holes spaced apart. The discharge holes are connected to the forming cavity.

[0009] The feeding structure includes multiple feeding pipes, a feeding cylinder, and a feeding tube. The feeding cylinder is connected to the upper port of the feeding pipe and the lower port of the feeding tube. Multiple feeding pipes are provided, and the lower port of each feeding pipe is connected to each feeding hole. The cross-section of the feeding cylinder is frustum-shaped, and the diameter of the upper port of the feeding cylinder is smaller than the diameter of the lower port.

[0010] A top mold structure is mounted on the work frame.

[0011] In a further technical solution, the feeding tube is configured to be curved, and the distance between the upper ports of the plurality of feeding tubes is smaller than the distance between the lower ports.

[0012] In a further technical solution, the feeding structure also includes a guide column, which is fixedly installed inside the feeding cylinder. The cross-section of the guide column is set to a frustum shape, and the plurality of feeding pipes are circumferentially distributed around the axial direction of the guide column. The corners of the upper and lower ends of the guide column are set to an arc shape.

[0013] In a further technical solution, the feeding structure further includes multiple heating tubes, the guide column has an installation cavity, and the guide column is made of a heat-conducting material. The multiple heating tubes are installed at intervals in the installation cavity, and the heating tubes are in contact with the inner wall of the installation cavity.

[0014] A further technical solution is provided, wherein the top mold structure includes a push plate, a top mold ring and a plurality of top pillars, and the lower end of the fixed mold is provided with a plurality of circumferentially distributed through holes at intervals. Each top pillar is connected to the push plate and the top mold ring, and each top pillar is inserted into each of the through holes. The top mold ring is placed in the molding cavity, and the through holes are connected to the molding cavity. The push plate is slidably disposed on the work frame.

[0015] In a further technical solution, the work frame has a pair of placement plates and a pair of moving slots, the moving slots being placed below the placement plates, the top mold structure further including a pair of electric telescopic columns, the fixed mold being placed on the upper surface of the pair of placement plates, the electric telescopic columns being placed in the moving slots, and the electric telescopic columns being connected to the push plate and the inner wall of the moving slots.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention features a feeding structure comprising multiple feeding pipes, a feeding cylinder, and a feeding tube. The feeding cylinder connects the upper and lower ends of the feeding pipes. Multiple feeding pipes are provided, with the lower end of each feeding pipe connected to a feeding hole. The feeding cylinder has a frustum-shaped cross-section, with the upper end diameter smaller than the lower end diameter. Molding liquid is fed into the feeding cylinder via the feeding pipes, flows to each feeding pipe, and finally flows into the molding cavity via each feeding hole. By providing multiple feeding pipes, the molding liquid flowing into the molding cavity is evenly distributed, thereby ensuring a consistent thickness of the battery protective layer after molding.

[0018] This invention features a guide column and heating tubes. The guide column is fixedly installed inside the feed cylinder, and its cross-section is frustum-shaped. Multiple feed tubes are circumferentially distributed around the axis of the guide column, with the corners at the upper and lower ends of the guide column rounded. The guide column has an installation cavity, and the guide column is made of a heat-conducting material. Multiple heating tubes are spaced apart in the installation cavity and are in contact with the inner wall of the installation cavity. When the heating tubes in the installation cavity are energized, they generate heat, which is conducted to the guide column. In this way, by setting the heating tubes, the molding liquid flowing through the guide column is kept in a molten state at all times, preventing the molding liquid from solidifying after cooling and affecting the quality of the battery protective layer after molding.

[0019] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 This is a partial exploded view of the present invention.

[0023] In the diagram: 1. Mold body; 11. Work frame; 111. Placement plate; 112. Moving groove; 12. Fixed mold; 121. Molding cavity; 122. Through hole; 13. Moving mold; 131. Material discharge hole; 2. Feeding structure; 21. Material discharge pipe; 22. Feeding cylinder; 23. Feeding pipe; 24. Guide column; 241. Mounting cavity; 25. Heating tube; 3. Top mold structure; 31. Push plate; 32. Top mold ring; 33. Top column; 34. Electric telescopic column. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] like Figures 1 to 3 As shown, this utility model embodiment provides a Bluetooth headset battery protection layer molding die, comprising:

[0027] The mold body 1 includes a work frame 11, a fixed mold 12 and a moving mold 13. The fixed mold 12 is vertically mounted on the work frame 11, and the moving mold 13 is movably mounted on the work frame 11 and is positioned at a predetermined distance above the fixed mold 12. The fixed mold 12 has a molding cavity 121, and the moving mold 13 is provided with a plurality of circumferentially distributed discharge holes 131 at intervals. The discharge holes 131 are connected to the molding cavity 121.

[0028] Feeding structure 2 includes multiple feeding pipes 21, feeding cylinder 22 and feeding pipe 23. The feeding cylinder 22 is connected to the upper port of the feeding pipe 21 and the lower port of the feeding cylinder 22. Multiple feeding pipes 21 are provided. The lower port of each feeding pipe 21 is connected to each feeding hole 131. The cross-section of the feeding cylinder 22 is set as a frustum shape, and the diameter of the upper port of the feeding cylinder 22 is smaller than the diameter of the lower port.

[0029] Top mold structure 3 is installed on the work frame 11;

[0030] In this embodiment, the molding liquid is fed into the feed cylinder 22 through the feed pipe 23 and flows to each discharge pipe 21, and finally flows to the molding cavity 121 through each discharge hole 131. By setting multiple discharge pipes 21, the molding liquid flowing into the molding cavity 121 is evenly distributed, thereby ensuring that the thickness of the battery protective layer after molding remains consistent.

[0031] Specifically, the feeding tube 21 is configured to be curved, and the distance between the upper ports of the multiple feeding tubes 21 is smaller than the distance between the lower ports;

[0032] Specifically, the feeding structure 2 also includes a guide column 24, which is fixedly installed inside the feeding cylinder 22. The cross-section of the guide column 24 is set as a frustum shape, and multiple feeding pipes 21 are distributed in a circle around the axis of the guide column 24. The corners of the upper and lower ends of the guide column 24 are set as arcs.

[0033] Specifically, the feeding structure 2 also includes multiple heating tubes 25, the guide column 24 has an installation cavity 241, and the guide column 24 is made of a heat-conducting material. The multiple heating tubes 25 are installed at intervals in the installation cavity 241, and the heating tubes 25 are in contact with the inner wall of the installation cavity 241.

[0034] In this embodiment, the heating tube 25 in the mounting cavity 241 generates heat after being energized, and the generated heat is conducted to the guide column 24. In this way, by setting the heating tube 25, the molding liquid flowing through the guide column 24 is kept in a molten state to prevent the molding liquid from solidifying after cooling and affecting the quality of the battery protective layer after molding.

[0035] Specifically, the top mold structure 3 includes a push plate 31, a top mold ring 32, and multiple top posts 33. The lower end of the fixed mold 12 is provided with multiple circumferentially distributed through holes 122. Each top post 33 is connected to the push plate 31 and the top mold ring 32. Each top post 33 is inserted into each through hole 122. The top mold ring 32 is placed in the molding cavity 121. The through holes 122 are connected to the molding cavity 121. The push plate 31 is slidably disposed on the work frame 11.

[0036] Specifically, the work frame 11 has a pair of placement plates 111 and a pair of moving slots 112. The moving slots 112 are placed below the placement plates 111. The top mold structure 3 also includes a pair of electric telescopic columns 34. The fixed mold 12 is placed on the upper surface of the pair of placement plates 111. The electric telescopic columns 34 are placed in the moving slots 112. The electric telescopic columns 34 are connected to the push plate 31 and the inner wall of the moving slots 112.

[0037] In this embodiment, after the molding liquid in the molding cavity 121 cools down, the moving mold 13 moves away from the fixed mold 12; then, the activated electric telescopic column 34 retracts to drive the push plate 31 to move along the moving groove 112 and toward the moving mold 13. At this time, the top column 33 moves in the through hole 122, thereby driving the top mold ring 32 to push the molded battery protective layer out of the molding cavity 121.

[0038] The working principle of this utility model is as follows:

[0039] In the initial state, the moving mold 13 moves to fit against the upper surface of the fixed mold 12. At this time, the discharge hole 131 is connected to the molding cavity 121. The molding liquid is introduced into the feed cylinder 22 through the feed pipe 23, and flows from the upper surface of the guide column 24 to each discharge pipe 21, and finally flows to the molding cavity 121 through each discharge hole 131. By setting multiple discharge pipes 21, the molding liquid flowing into the molding cavity 121 is evenly distributed, thereby ensuring that the thickness of the battery protective layer after molding remains consistent.

[0040] In addition, the heating tube 25 in the mounting cavity 241 generates heat after being powered on, and the generated heat is conducted to the guide column 24. In this way, by setting the heating tube 25, the molding liquid flowing through the guide column 24 is kept in a molten state to prevent the molding liquid from solidifying after cooling and affecting the quality of the battery protective layer after molding.

[0041] After the molding liquid in the molding cavity 121 cools down, the moving mold 13 moves away from the fixed mold 12. Then, the activated electric telescopic column 34 retracts to drive the push plate 31 to move along the moving groove 112 and towards the moving mold 13. At this time, the top column 33 moves in the through hole 122, thereby driving the top mold ring 32 to push the molded battery protective layer out of the molding cavity 121.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A molding die for a Bluetooth headset battery protective layer, characterized in that, include: The mold body (1) includes a work frame (11), a fixed mold (12) and a moving mold (13). The fixed mold (12) is vertically installed on the work frame (11), and the moving mold (13) is movably installed on the work frame (11). The moving mold (13) is positioned at a predetermined distance above the fixed mold (12). The fixed mold (12) has a molding cavity (121), and the moving mold (13) is provided with a plurality of circumferentially distributed discharge holes (131) at intervals. The discharge holes (131) are connected to the molding cavity (121). The feeding structure (2) includes multiple feeding pipes (21), a feeding cylinder (22) and a feeding pipe (23). The feeding cylinder (22) is connected to the upper port of the feeding pipe (21) and the lower port of the feeding cylinder (22). Multiple feeding pipes (21) are provided. The lower port of each feeding pipe (21) is connected to each feeding hole (131). The cross-section of the feeding cylinder (22) is set as a frustum shape, and the diameter of the upper port of the feeding cylinder (22) is smaller than the diameter of the lower port. The top mold structure (3) is installed on the work frame (11).

2. The Bluetooth headset battery protective layer molding die according to claim 1, characterized in that: The feeding tube (21) is configured to be curved, and the distance between the upper ports of the plurality of feeding tubes (21) is smaller than the distance between the lower ports.

3. The Bluetooth headset battery protective layer molding die according to claim 2, characterized in that: The feeding structure (2) also includes a guide column (24), which is fixedly installed inside the feeding cylinder (22). The cross-section of the guide column (24) is set as a frustum shape. Multiple feeding pipes (21) are distributed in a circle around the axis of the guide column (24). The corners of the upper and lower ends of the guide column (24) are set as arcs.

4. The Bluetooth headset battery protective layer molding die according to claim 3, characterized in that: The feeding structure (2) also includes a plurality of heating tubes (25), the guide column (24) has an installation cavity (241), and the guide column (24) is made of a heat-conducting material. The plurality of heating tubes (25) are installed at intervals in the installation cavity (241), and the heating tubes (25) are in contact with the inner wall of the installation cavity (241).

5. The Bluetooth headset battery protective layer molding die according to claim 4, characterized in that: The top mold structure (3) includes a push plate (31), a top mold ring (32) and a plurality of top posts (33). The lower end of the fixed mold (12) is provided with a plurality of circumferentially distributed through holes (122). Each top post (33) is connected to the push plate (31) and the top mold ring (32). Each top post (33) is inserted into each of the through holes (122). The top mold ring (32) is placed in the molding cavity (121). The through holes (122) are connected to the molding cavity (121). The push plate (31) is slidably disposed on the work frame (11).

6. The Bluetooth headset battery protective layer molding die according to claim 5, characterized in that: The work frame (11) has a pair of placement plates (111) and a pair of moving slots (112). The moving slots (112) are placed below the placement plates (111). The top mold structure (3) also includes a pair of electric telescopic columns (34). The fixed mold (12) is placed on the upper surface of the pair of placement plates (111). The electric telescopic columns (34) are placed in the moving slots (112). The electric telescopic columns (34) are connected to the push plate (31) and the inner wall of the moving slots (112).

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