Multi-unit sound hole mold structure for wired earphone and bluetooth earphone

Abstract

This invention relates to the field of wired headphone manufacturing equipment, specifically to a multi-unit sound outlet mold structure for wired and Bluetooth headphones. The driving assembly includes a clamping component for holding and fixing the earpieces. The adjusting device includes a rotating adjusting component located within the worktable, and a connecting component for adjusting the positioning clamping device. When motor one is started, it drives threaded rod one to rotate, causing two threaded sleeves to move two clamping plates synchronously in opposite directions along threaded rod one, i.e., moving closer to each other. The clamping plates move through the long slot into the worktable, ultimately clamping and fixing the earpieces from both the front and rear sides. Simultaneously, motor two is started, and threaded rod two rotates, causing a moving plate to move left and right, adjusting the positioning clamping device to a suitable left-right position. Electric telescopic rod one is started to adjust the positioning clamping device to a suitable height. Electric telescopic rod two is started to adjust the positioning clamping device to a suitable position in the placement slot one.

Description

Technical Field

[0001] This invention relates to the field of wired headphone processing and production equipment, specifically to a multi-unit sound outlet mold structure for wired and Bluetooth headphones. Background Technology

[0002] In the production and processing of wired and Bluetooth headphones, the multi-unit sound outlet is the core structure of the headphone's sound-generating component. Its processing precision directly determines the headphone's sound effect, sound quality stability, and product appearance qualification rate. The earpiece positioning and clamping is a crucial pre-processing step before the stamping, drilling, and shaping of the multi-unit sound outlet. Currently, most mainstream headphone sound outlet processing molds on the market use fixed tooling fixtures with a relatively simple overall structure. They primarily rely on manual positioning and unidirectional clamping to complete the earpiece clamping operation. Traditional molds and tooling are mostly customized structures corresponding to a single headphone model, designed for processing the sound outlet of conventional single-unit headphones. They can meet the basic headphone sound outlet forming requirements and are widely used in the mass production of low-end headphones. Furthermore, existing mold structures are mostly fixed installations, with the clamping mechanism's position, height, and front-to-back spacing all preset fixed parameters. Basic earpiece earpiece positioning and sound outlet processing can be completed manually by aligning and locking the workpiece, offering advantages such as simple structure and low manufacturing cost.

[0003] Existing traditional headphone sound hole molds still have many substantial defects in actual production applications, making it difficult to adapt to the current large-scale, high-precision production needs of multi-specification, multi-unit headphones. Specific defects are as follows: First, poor versatility. Existing molds are mostly customized structures for a single model, with clamping positions and support structures that cannot be adjusted in multiple dimensions. They can only be adapted to the processing of headphones of fixed size and fixed number of units, and cannot be compatible with the universal processing of multiple specifications of wired and Bluetooth headphones. This results in low mold reuse rates and high production and inventory costs for enterprises. Second, low positioning and clamping accuracy. Traditional molds often use single-sided clamping and manual alignment to fix the electrode, resulting in poor clamping stability. During processing, the electrode is prone to displacement, shaking, and loosening, directly leading to processing defects such as sound hole diameter deviation, hole position misalignment, and uneven hole walls, significantly reducing the headphone yield rate. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a multi-unit sound outlet mold structure for wired headphones and Bluetooth headphones.

[0005] The technical solution adopted by this invention to solve its technical problem is: a multi-unit sound outlet mold structure for wired and Bluetooth headphones, including a worktable, a support device for placing the earpieces inside the worktable, a positioning clamping device for holding the earpieces inside the support device above the worktable, an adjustment device for adjusting the positioning clamping device inside the worktable, the support device including a support component for placing the earpieces, an ejection component for ejecting the earpieces from the support component inside the worktable, the positioning clamping device including a drive component for rotation above the worktable, a clamping component for clamping and fixing the earpieces inside the drive component, and two clamping components, and the adjustment device including an adjustment component for rotation inside the worktable, and a connecting component for adjusting the positioning clamping device inside the adjustment component.

[0006] Preferably, the top of the workbench is provided with a placement slot 1 for placing wired headphones, and the top of the workbench is provided with a placement slot 2 for placing a support device. The front and rear sides of the placement slot 2 are provided with long slots for facilitating the insertion of clamping components.

[0007] Preferably, the pop-out component includes a slide rod fixedly installed in the placement slot 2 for the support component to slide up and down, and a spring for popping out the support component is fitted on the slide rod.

[0008] Preferably, the support assembly includes a fixed sleeve plate fitted onto the slide rod for sliding, and a support plate for placing the electrode tab is fixedly installed on the fixed sleeve plate.

[0009] Preferably, the driving assembly includes a fixed frame fixedly connected to the connecting assembly, and a threaded rod is provided in the fixed frame for driving the two clamping assemblies to move in opposite directions. A motor for driving the threaded rod to rotate is fixedly installed at the front end of the threaded rod.

[0010] Preferably, the clamping assembly includes a threaded sleeve plate disposed within a fixed frame for threaded connection with the threaded rod, and a clamping plate for clamping and fixing the electrode tab is fixedly installed on the threaded sleeve plate.

[0011] Preferably, the adjustment assembly includes a threaded rod II disposed within the workbench for driving the connecting assembly to move left and right, and a motor II for driving the threaded rod II to rotate is fixedly installed at the right end of the threaded rod II.

[0012] Preferably, the connecting assembly includes a movable plate that is threadedly connected to the threaded rod 2. A support base for left and right movement is fixedly installed at the rear end of the movable plate. An electric telescopic rod 1 for up and down movement is fixedly installed at the top end of the support base. An electric telescopic rod 2 for forward and backward movement is provided at the top end of the electric telescopic rod 1, and the electric telescopic rod 2 is fixedly connected to the fixed frame.

[0013] The advantages of this invention are: This invention features an adjustment device that allows for left-right position adjustment via a threaded rod two. Combined with electric telescopic rod one and electric telescopic rod two, it enables fine-tuning of height and forward / backward position. This allows for flexible adjustment of the clamping station and processing alignment position according to different sizes and unit layouts of wired and Bluetooth headphones. It breaks through the limitations of traditional molds that are only customized for a single model and cannot be universally applied, significantly improving mold reusability. It eliminates the need for separate molds for different headphone models, effectively reducing production mold costs and equipment inventory costs for enterprises.

[0014] Two sets of symmetrical clamping components, along with bidirectional threaded rods, achieve synchronous, opposite clamping, replacing the traditional single-sided clamping and manual alignment method. The dual-sided clamping plates evenly conform to both sides of the earpiece, ensuring balanced clamping force and strong stability. This completely eliminates problems such as earpiece misalignment, shaking, and loosening during processing, effectively avoiding processing defects such as sound hole misalignment, uneven hole diameter, and burrs on the hole walls. This significantly improves the forming accuracy of the sound holes for multiple earphone units and increases product yield. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the workbench structure of the present invention; Figure 3 This is a cross-sectional view of the workbench of the present invention; Figure 4 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 5 This is a diagram showing the alignment of the positioning clamping device and the adjustment device of the present invention. Figure 6 For the present invention Figure 5 Enlarged view of section B in the middle.

[0017] Figure 7For the present invention Figure 5 A structural diagram of the multi-unit sound outlet mold structure for wired and Bluetooth headphones.

[0018] In the diagram: 100, workbench; 101, placement slot one; 102, placement slot two; 103, long slot; 200, support device; 210, support assembly; 211, support plate; 212, fixed sleeve plate; 220, pop-out assembly; 221, slide rod; 222, spring; 300, positioning and clamping device; 310, drive assembly; 311, fixed frame; 312, threaded rod one; 313, motor one; 320, clamping assembly; 321, threaded sleeve plate; 322, clamping plate; 400, adjusting device; 410, adjusting assembly; 411, threaded rod two; 412, motor two; 420, connecting assembly; 421, support base; 422, moving plate; 423, electric telescopic rod one; 424, electric telescopic rod two. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail. This application discloses a multi-unit sound hole mold structure for wired and Bluetooth headphones. The top of the workbench 100 has a placement groove 101 and a placement groove 102. Placement groove 101 is used to place semi-finished wired and Bluetooth headphones, adapting to the processing and positioning of multi-unit sound holes for various headphone specifications. Placement groove 102 is a recessed structure used for embedded installation of a support device 200, ensuring the stability of the support device 200 and preventing displacement during processing. Simultaneously, symmetrical elongated grooves 103 are formed on the front and rear sides of placement groove 102. The width and spacing of the elongated grooves 103 are adapted to the movement trajectory of the clamping assembly 320, providing clearance for the insertion and movement of the clamping assembly 320, ensuring that the clamping structure can smoothly complete the ear clamping operation.

[0021] The support device 200 includes a support component 210 and a pop-out component 220. The support component 210 is used for the precise placement and support of the earphone electrode to be processed, and the pop-out component 220 is used for the automatic pop-out and unloading of the electrode after processing, realizing automated loading and unloading. The pop-out component 220 is fixedly assembled inside the placement groove 102 and includes two vertically fixed sliding rods 221, symmetrically distributed on both sides inside the placement groove 102 to ensure sliding stability. A spring 222 is fitted onto the outside of the sliding rod 221. The bottom end of the spring 222 is fixedly connected to the bottom of the placement groove 102, and the top end is in contact with the bottom of the support component 210. Under normal conditions, the spring force lifts the support component 210.

[0022] The support assembly 210 is movably mounted on the slide rod 221 and can slide vertically up and down along the slide rod 221. Specifically, it includes a fixed sleeve plate 212 and a support plate 211. Two sets of fixed sleeve plates 212 are provided corresponding to the slide rods 221, each movably fitted onto the outside of the two slide rods 221 to achieve sliding limit guidance. The support plate 211 is integrally fixedly mounted on the top surface of the fixed sleeve plate 212. The top surface of the support plate 211 has a positioning groove that matches the shape of the earphone electrode, which can accurately limit the placement of the earphone electrode and prevent horizontal displacement of the electrode during processing. During the clamping and pressing process, the support plate 211, under pressure, drives the fixed sleeve plate 212 to slide downwards along the slide rod 221, compressing the spring 222. After processing is completed and the clamping structure is released, the spring 222 rebounds, lifting the support plate 211 and automatically ejecting the processed electrode, facilitating material removal by the operator and significantly improving processing efficiency.

[0023] A positioning and clamping device 300 is mounted above the workbench 100 to clamp and fix the electrode tabs placed on the support plate 211 in both directions, ensuring that the electrode tabs do not wobble or shift during the processing of multi-unit sound holes, thereby improving processing accuracy. The positioning and clamping device 300 includes a drive assembly 310 and two sets of symmetrically arranged clamping assemblies 320. The two sets of clamping assemblies 320 are arranged opposite each other and can move synchronously in opposite directions to achieve clamping and releasing of the electrode tabs.

[0024] The drive assembly 310 provides power support for the clamping assembly 320 and includes a fixed frame 311, a threaded rod 312, and a motor 313. The fixed frame 311 is a rectangular frame structure that serves as the mounting base for the clamping structure. The threaded rod 312 is laterally rotatable inside the fixed frame 311. The threaded rod 312 adopts a bidirectional threaded structure, with the threads on the left and right sides of the rod rotating in opposite directions, which can drive the clamping assemblies 320 on both sides to move synchronously in opposite directions. The front end of the threaded rod 312 passes through the fixed frame 311 and is fixedly connected to the output shaft of the motor 313. The motor 313 is fixed to the outer end face of the fixed frame 311 by bolts. During operation, the forward and reverse rotation of the motor 313 drives the threaded rod 312 to rotate in either direction.

[0025] The clamping assembly 320 is installed on the bidirectional threaded section of the threaded rod 312. Each clamping assembly 320 includes a threaded sleeve plate 321 and a clamping plate 322. The threaded sleeve plate 321 is threadedly connected to the threaded rod 312, and the outer wall of the threaded sleeve plate 321 slides against the inner wall of the fixed frame 311 to limit movement and prevent the threaded sleeve plate 321 from rotating synchronously with the threaded rod 312, ensuring that it only performs linear reciprocating motion. The clamping plate 322 is fixedly installed at the bottom of the threaded sleeve plate 321. The clamping plate 322 is made of hard and wear-resistant material, and the inner side wall is provided with anti-slip texture. The opposing end faces of the two sets of clamping plates 322 form a clamping position, which can accurately fit the two end faces of the earphone electrode to achieve stable clamping and fixation, and adapt to the clamping needs of earphone electrodes of different widths.

[0026] The worktable 100 is internally equipped with an adjustment device 400, which is used to adjust the position of the entire positioning and clamping device 300 in multiple directions to adapt to the processing position requirements of the sound outlet holes of different models of wired and Bluetooth headphones, thereby improving the versatility of the mold. The adjustment device 400 includes an adjustment component 410 and a connecting component 420. The adjustment component 410 provides horizontal adjustment power, and the connecting component 420 realizes multi-dimensional displacement transmission, driving the positioning and clamping device 300 to complete fine-tuning of its position in multiple directions, including left, right, up, down, and forward and backward.

[0027] The adjustment assembly 410 includes a threaded rod 411 and a motor 412. The threaded rod 411 is horizontally rotatably installed in the mounting cavity inside the worktable 100 and is arranged parallel to the top surface of the worktable 100. The right end of the threaded rod 411 passes through the side wall of the worktable 100 and is fixedly connected to the output end of the motor 412. The motor 412 is fixedly installed on the outer side wall of the worktable 100. The operation of the motor 412 can drive the threaded rod 411 to rotate clockwise or counterclockwise, providing power for horizontal adjustment.

[0028] The connecting component 420 is threaded onto the threaded rod 411 and includes a movable plate 422, a support base 421, an electric telescopic rod 423, and an electric telescopic rod 424. The movable plate 422 is threadedly connected to the threaded rod 411, and the movable plate 422 is slidably limited in place with the internal cavity of the worktable 100. When the threaded rod 411 rotates, it can drive the movable plate 422 to move linearly left and right along its rod. The rear end of the movable plate 422 is integrally fixed to the support base 421, and the top of the support base 421 is vertically fixed to the electric telescopic rod 423. The telescopic end of the electric telescopic rod 423 is set upward, which can realize the vertical height adjustment of the entire clamping structure. The top of the electric telescopic rod 423 is fixed to the electric telescopic rod 424. The electric telescopic rod 424 is horizontally arranged front and back, and its telescopic end is fixedly connected to the side wall of the fixed frame 311 of the drive component 310, which can drive the clamping structure to complete the front and back position adjustment.

[0029] The specific workflow of this invention is as follows: First, the worker places the earphone electrode to be processed on the support plate 211 of the support assembly 210 to complete the initial positioning of the workpiece; then, the adjustment device 400 is started, and the threaded rod 411 is driven to rotate by the motor 412, which drives the moving plate 422 to move left and right. With the help of the electric telescopic rod 423 to adjust the height and the electric telescopic rod 424 to adjust the front and back position, the positioning clamping device 300 is precisely adjusted to the workpiece processing position; after the position is calibrated, the motor 313 is started to drive the threaded rod 312 to rotate, which drives the two sets of threaded sleeve plates 321 to move towards each other, so that the clamping plates 322 on both sides are tightly attached to both sides of the electrode, and the electrode is accurately clamped and fixed.

[0030] After clamping and fixing, the operator can perform punching, drilling, and grinding operations on the multi-unit sound outlet holes of the earphone. During the processing, the clamping structure keeps the workpiece stable at all times, effectively avoiding processing deviations. After all processing steps are completed, the control motor 313 reverses, causing the two sets of clamping plates 322 to separate in the opposite direction, releasing the processed tabs. At this time, the compressed spring 222 rebounds, lifting the support plate 211 and automatically ejecting the workpiece. The operator can then quickly remove the finished product and proceed with the processing cycle for the next set of workpieces.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A multi-unit sound outlet mold structure for wired and Bluetooth headphones, including a worktable (100), characterized in that: The workbench (100) is equipped with a support device (200) for placing the electrode tabs. Above the workbench (100) is a positioning clamping device (300) for holding the electrode tabs within the support device (200). The workbench (100) is equipped with an adjustment device (400) for adjusting the positioning clamping device (300). The support device (200) includes a support assembly (210) for placing the electrode tabs. The workbench (100) is equipped with a device for placing the electrode tabs on the support assembly (210). The pop-out component (220) is popped out. The positioning clamping device (300) includes a drive component (310) for rotation, which is disposed above the worktable (100). The drive component (310) is provided with a clamping component (320) for clamping and fixing the electrode tabs. There are two clamping components (320). The adjustment device (400) includes an adjustment component (410) for rotation, which is disposed inside the worktable (100). The adjustment component (410) is provided with a connecting component (420) for adjusting the positioning clamping device (300).

2. The multi-unit sound outlet mold structure for wired and Bluetooth headphones according to claim 1, characterized in that: The top of the workbench (100) is provided with a placement slot 1 (101) for placing wired headphones, and the top of the workbench (100) is provided with a placement slot 2 (102) for placing a support device (200). The front and rear sides of the placement slot 2 (102) are provided with long slots (103) for facilitating the insertion of clamping components (320).

3. The multi-unit sound outlet mold structure for wired and Bluetooth headphones according to claim 2, characterized in that: The pop-out assembly (220) includes a slide rod (221) fixedly installed in the placement slot 2 (102) for the support assembly (210) to slide up and down. A spring (222) for popping out the support assembly (210) is fitted on the rod of the slide rod (221).

4. The multi-unit sound outlet mold structure for wired and Bluetooth headphones according to claim 3, characterized in that: The support assembly (210) includes a fixed sleeve (212) fitted on the slide bar (221) for sliding, and a support plate (211) for placing the tab is fixedly installed on the fixed sleeve (212).

5. The multi-unit sound outlet mold structure for wired and Bluetooth headphones according to claim 1, characterized in that: The drive assembly (310) includes a fixed frame (311) fixedly connected to the connecting assembly (420). The fixed frame (311) is provided with a threaded rod (312) for driving the two clamping assemblies (320) to move in opposite directions. The front end of the threaded rod (312) is fixedly mounted with a motor (313) for driving the threaded rod (312) to rotate.

6. The multi-unit sound outlet mold structure for wired and Bluetooth headphones according to claim 5, characterized in that: The clamping assembly (320) includes a threaded sleeve plate (321) disposed in the fixed frame (311) for threaded connection with the threaded rod (312), and a clamping plate (322) for clamping and fixing the electrode tab is fixedly installed on the threaded sleeve plate (321).

7. The multi-unit sound outlet mold structure for wired and Bluetooth headphones according to claim 6, characterized in that: The adjustment assembly (410) includes a threaded rod (411) disposed in the workbench (100) for driving the connecting assembly (420) to move left and right. A motor (412) for driving the threaded rod (411) to rotate is fixedly installed at the right end of the threaded rod (411).

8. The multi-unit sound outlet mold structure for wired and Bluetooth headphones according to claim 7, characterized in that: The connecting assembly (420) includes a movable plate (422) threadedly connected to the second threaded rod (411). The rear end of the movable plate (422) is fixedly installed with a support base (421) for left and right movement. The top end of the support base (421) is fixedly installed with an electric telescopic rod (423) for up and down movement. The top end of the electric telescopic rod (423) is provided with an electric telescopic rod (424) for forward and backward movement, and the electric telescopic rod (424) is fixedly connected to the fixed frame (311).

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