Earphone pressure maintaining device

Abstract

The utility model relates to the field of earphone production devices, in particular to an earphone pressure maintaining device which comprises a table top, a rotating disc is arranged above the table top and driven by a rotating motor to rotate, a plurality of pressure maintaining modules are evenly fixed to the rotating disc, and each pressure maintaining module comprises a plurality of sliding rods fixed to the rotating disc. The pressure maintaining module further comprises a pressing plate arranged above the rotating disc, the sliding rod penetrates through the pressing plate and is in sliding connection with the pressing plate, a supporting plate is further fixed to the top of the sliding rod, a threaded pipe is fixed to the supporting plate, a threaded rod in threaded connection with the threaded pipe is arranged on the threaded pipe, and fixing modules are fixed to the portions, on the two sides of the rotating disc, of the table top. The fixing module comprises a top plate fixed above the table top, an air cylinder is fixed to the top plate, a fixing plate is fixed to the tail end of a piston rod of the air cylinder, and rotating shafts are arranged at the positions, corresponding to the screws, of the fixing plate. According to the device, pressure maintaining operation can be carried out on a plurality of earphones at the same time.

Description

Technical Field

[0001] This invention relates to the field of headphone manufacturing equipment, and more particularly to a headphone pressure-holding device. Background Technology

[0002] After the earphone shell is glued and assembled, it needs to be pressed and shaped. After a period of time, the glue dries completely, completing the pressure holding process for the earphone.

[0003] Patent application number CN202223178956.X discloses a headphone pressure-holding device for quick replacement of upper and lower pressure molds. It includes a machine base, a support frame, an upper mold device, a lower mold device, and a driving component. The support frame is mounted on the machine base, and the driving component is fixedly mounted on the support frame. The upper mold device includes an upper fixed base fixed to the driving component and an upper pressing block mounted on the upper fixed base. The lower mold device includes a lower fixed base fixed to the machine base and a lower pressing block mounted on the lower fixed base. Both the upper and lower pressing blocks have pressure-holding grooves. Magnets are embedded in the upper and lower fixed bases, and the upper and lower pressing blocks are magnetically connected to the upper and lower fixed bases respectively via the magnets. However, when this type of device holds pressure for multiple headphones, multiple cylinder driving components are required to simultaneously complete the pressure-holding work for multiple headphones, resulting in high device costs.

[0004] This invention was proposed in response to the shortcomings of existing technologies. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an earphone pressure-maintaining device.

[0006] This invention can be achieved through the following technical solutions:

[0007] This invention discloses an earphone pressure-maintaining device, comprising a platform, a turntable mounted on the platform, the turntable being driven to rotate by a rotary motor, multiple pressure-maintaining modules evenly fixed on the turntable, each pressure-maintaining module comprising multiple sliding rods fixed on the turntable, and a pressure plate mounted above the turntable. The sliding rods pass through the pressure plate and are slidably connected to it. A support plate is fixed to the top of each sliding rod, and a threaded tube is fixed to the support plate. A screw threadedly connected to the threaded tube is mounted on the threaded tube. Fixing modules are fixed on both sides of the platform, each fixing module comprising a top plate fixed above the platform, a cylinder fixed to the top plate, and a fixing plate fixed to the end of the piston rod of the cylinder. Rotating shafts are mounted on the fixing plates at positions corresponding to the screws, and are driven to rotate by the pressure-maintaining motor. A square shaft is fixed to the bottom of the rotating shaft, and a square tube slidably connected to the square shaft is mounted on the square shaft. A rotating block rotatably connected to the square tube is mounted on the square tube, and a limit spring is fixed between the rotating block and the fixing plate. A pressure rod is also fixed to the fixing plate. The mold consists of an upper mold and a lower mold, both of which have placement holes. After the upper and lower molds are assembled, the two placement holes form a placement cavity for earphone pressure holding. The earphone to be pressure held after dispensing is placed in the placement hole of the lower mold, and the upper mold is placed on top of the lower mold. After assembling the upper mold with the positioning pins on the upper mold and the positioning holes on the lower mold, the upper and lower molds are assembled. After the upper and lower molds are assembled, the mold is placed under the fixed plate. The rotary motor drives the turntable to rotate a certain angle, and the earphone to be pressure held is placed again at the pressure holding module position. The machine operates in a cyclical manner. When the earphone to be pressurized reaches a fixed module position, the corresponding cylinder is activated, the piston rod on the cylinder extends, the fixed plate descends, and the pressure rod descends. After the pressure rod presses against the fixed plate, it presses the fixed plate onto the upper mold. After the fixed plate presses against the upper mold, the connecting block below the square tube is inserted into the connecting hole at the top of the screw. The pressurizing motor drives the square tube to rotate, and the rotation of the square tube drives the screw to rotate. During the rotation of the square tube, due to the action of the limit spring, the connecting block is always inserted into the connecting hole. After the screw descends... The pressure plate is held in place by the screw, and the cylinder restarts, causing the fixed plate to rise. The pressure rod separates from the pressure plate, and the connecting block separates from the connecting hole. The rotary motor then drives the turntable to rotate at a certain angle, and the next mold reaches the position of the first fixed module. The screw rotates again to hold the pressure plate in place. This process is repeated. After the earphones have been pressurized for a period of time, the mold reaches the position of the second fixed module. The cylinder of the second fixed module starts, and the piston rod on the cylinder extends. The connecting block at the corresponding position is inserted into the connecting hole again. The pressure-holding motor drives the connecting block to rotate in the opposite direction, causing the screw to rise. After the screw separates from the pressure plate, the cylinder starts again, and the connecting block separates from the connecting hole. The mold is removed, and the earphones that have completed pressurization are taken out. The earphones to be pressurized are placed back into the mold, and the mold is placed in the pressure-holding module position. This process is repeated. This device can perform pressurization operations on multiple earphones simultaneously. Furthermore, during pressurization, it is not necessary to set up a corresponding cylinder drive for each earphone, which greatly reduces the cylinder cost of the device.

[0008] Preferably, multiple support springs are also fixed between the pressure plate and the turntable. After the screw separates from the pressure plate, the support springs automatically push the pressure plate upward, and the pressure plate is at a certain distance from the mold, which facilitates the loading and unloading of the mold.

[0009] Preferably, the bottom of the screw is further provided with a pressure block that is rotatably connected to the screw. By providing the pressure block, friction between the screw and the pressure plate can be avoided when the screw rotates.

[0010] Preferably, the top of the screw is provided with a connecting hole, and the bottom of the square tube is fixed with a connecting block that cooperates with the connecting hole.

[0011] Preferably, multiple limiting posts are fixed at the bottom of the lower mold, and limiting holes are provided on the turntable at positions corresponding to the limiting posts for use with the limiting posts.

[0012] Compared with existing technologies, the present invention has the following advantages:

[0013] This device can simultaneously maintain pressure on multiple headphones, and during pressure maintenance, it is not necessary to set up a corresponding cylinder drive for each headphone, which reduces the number of cylinders used and greatly reduces the cylinder cost of the device. Attached Figure Description

[0014] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the mold structure used in conjunction with the present invention;

[0017] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 4 for Figure 1 Enlarged view at point B in the middle;

[0019] In the diagram: 1. Tabletop; 2. Turntable; 3. Rotary motor; 4. Pressure holding module; 5. Slide rod; 6. Pressure plate; 7. Support spring; 8. Support plate; 9. Threaded tube; 10. Screw; 11. Connecting hole; 12. Pressure block; 13. Fixing module; 14. Top plate; 15. Cylinder; 16. Fixing plate; 17. Pressure holding motor; 18. Rotating shaft; 19. Square shaft; 20. Square tube; 21. Rotating block; 22. Limiting spring; 23. Connecting block; 24. Pressure rod; 25. Lower mold; 26. Placement hole; 27. Upper mold; 28. Positioning hole; 29. ​​Positioning post; 30. Limiting post; 31. Limiting hole; Detailed Implementation

[0020] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings:

[0021] Example 1:

[0022] like Figures 1 to 4As shown, this embodiment discloses an earphone pressure-maintaining device, including a platform 1, a turntable 2 above the platform 1, the turntable 2 being driven to rotate by a rotary motor 3, a plurality of pressure-maintaining modules 4 being evenly fixed on the turntable 2, each pressure-maintaining module 4 including a plurality of sliding rods 5 fixed on the turntable 2, and a pressure plate 6 disposed above the turntable 2, the sliding rods 5 passing through the pressure plate 6 and slidably connected to the pressure plate 6, a support plate 8 being fixed to the top of the sliding rods 5, a threaded tube 9 being fixed to the support plate 8, and a screw 10 threadedly connected to the threaded tube 9 being disposed on the threaded tube 9, and fixing modules 13 being fixed on both sides of the platform 1 of the turntable 2. The fixing module 13 includes a top plate 14 fixed above the table 1. A cylinder 15 is fixed on the top plate 14. A fixing plate 16 is fixed to the end of the piston rod of the cylinder 15. A rotating shaft 18 is provided on the fixing plate 16 at a position corresponding to the screw 10. The rotating shaft 18 is driven to rotate by a pressure holding motor 17. A square shaft 19 is fixed to the bottom of the rotating shaft 18. A square tube 20 is provided on the square shaft 19 and slidably connected to the square shaft 19. A rotating block 21 is provided on the square tube 20 and rotatably connected to the square tube 20. A limit spring 22 is fixed between the rotating block 21 and the fixing plate 16. A pressure rod 24 is also fixed on the fixing plate 16.The mold includes an upper mold 27 and a lower mold 25. Both the upper mold 27 and the lower mold 25 have placement holes 26. After assembly, the two placement holes 26 form a pressure-holding cavity for the earphones. The earphones to be pressure-held after dispensing are placed in the placement holes 26 of the lower mold 25, and the upper mold 27 is placed over the lower mold 25. After assembling the upper mold 27 with the positioning pins 29 on the upper mold 27 and the positioning holes 28 on the lower mold 25, the upper mold 27 and the lower mold 25 are assembled. After assembly, the mold is placed below the fixing plate 16. The rotary motor 3 drives the turntable 2 to rotate at a certain angle, and the pressure-holding module 4 is then engaged. The molds to be pressurized are placed and the operation is repeated. When the earphone to be pressurized reaches the position of a fixed module 13, the corresponding cylinder 15 is activated. The piston rod on the cylinder 15 extends, the fixed plate 16 descends, and the pressure rod 24 descends. After the pressure rod 24 presses against the fixed plate 16, it presses the fixed plate 16 onto the upper mold 27. After the fixed plate 16 presses against the upper mold 27, the connecting block 23 below the square tube 20 is inserted into the connecting hole 11 at the top of the screw 10. Then, the pressurizing motor 17 drives the square tube 20 to rotate. When the square tube 20 rotates, it drives the screw 10 to rotate. And when the square tube 20 rotates, due to the action of the limit spring 22, the connecting block... 23 is always inserted into the connecting hole 11. After the screw 10 descends, it presses against the pressure plate 6. The pressure plate 6 is fixed after being pressed by the screw 10. The cylinder 15 starts again, the fixing plate 16 rises, the pressure rod 24 separates from the pressure plate 6, and the connecting block 23 separates from the connecting hole 11. The rotary motor 3 drives the turntable 2 to rotate a certain angle again. The next mold reaches the position of the first fixing module 13. The screw 10 is rotated again to press against the pressure plate 6. The operation is repeated. After the earphone is pressurized for a period of time, the mold reaches the position of the second fixing module 13. The cylinder 15 of the second fixing module 13 starts, and the piston rod on the cylinder 15 extends. The corresponding connecting block 23 is inserted into the connecting hole 11 again. The pressure holding motor 17 drives the connecting block 23 to rotate in the opposite direction, the screw 10 rises, and after the screw 10 separates from the pressure plate 6, the cylinder 15 starts again, the connecting block 23 separates from the connecting hole 11, the mold is removed and the pressure-held earphone is taken out, and the earphone to be pressure-held is placed in the mold again and the mold is placed in the pressure holding module 4 position. The cycle is repeated. This device can perform pressure holding operations on multiple earphones at the same time. Moreover, during pressure holding, it is not necessary to set a corresponding cylinder 15 drive component for each earphone, which greatly reduces the cost of the cylinder 15 of the device.

[0023] Multiple support springs 7 are fixed between the pressure plate 6 and the turntable 2. After the screw 10 separates from the pressure plate 6, the support springs 7 automatically push the pressure plate 6 to rise. The pressure plate 6 is at a certain distance from the mold, which facilitates the loading and unloading of the mold.

[0024] The screw 10 has a connecting hole 11 at its top, and the square tube 20 has a connecting block 23 at its bottom that works in conjunction with the connecting hole 11.

[0025] The lower mold 25 has multiple limiting posts 30 fixed at its bottom, and the turntable 2 has limiting holes 31 at positions corresponding to the limiting posts 30 for use with the limiting posts 30.

[0026] Example 2:

[0027] This embodiment discloses an earphone pressure-maintaining device. Based on the structure and principle of Embodiment 1, the bottom of the screw 10 in this embodiment is further provided with a pressure block 12 that is rotatably connected to the screw 10. By providing the pressure block 12, friction between the screw 10 and the pressure plate 6 can be avoided when the screw 10 rotates.

[0028] The above are merely preferred embodiments of the present invention. It should be noted that, for those skilled in the art, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, substitutions and variations should also be considered within the scope of protection of the present invention.

Claims

1. A headphone pressure-maintaining device, characterized in that, The device includes a tabletop with a turntable mounted on top. The turntable is driven to rotate by a rotary motor. Multiple pressure-holding modules are evenly fixed on the turntable. Each pressure-holding module includes multiple sliding rods fixed to the turntable and a pressure plate mounted above the turntable. The sliding rods pass through the pressure plate and are slidably connected to it. A support plate is fixed to the top of each sliding rod, and a threaded tube is fixed to the support plate. A screw threaded to the threaded tube is attached to the threaded tube. Fixing modules are fixed on both sides of the tabletop. Each fixing module includes a top plate fixed above the tabletop, and a cylinder is fixed to the top plate. A fixing plate is fixed to the end of the piston rod of the cylinder. Rotating shafts are positioned on the fixing plates corresponding to the screws, and are driven to rotate by the pressure-holding motor. A square shaft is fixed to the bottom of the rotating shaft, and a square tube slidably connected to the square shaft is mounted on the square shaft. A rotating block rotatably connected to the square tube is mounted on the square tube. Limit springs are fixed between the rotating block and the fixing plate. A pressure rod is also fixed to the fixing plate.

2. The headphone pressure-maintaining device according to claim 1, characterized in that: Several support springs are also fixed between the pressure plate and the turntable.

3. The headphone pressure-maintaining device according to claim 1, characterized in that: The bottom of the screw is also provided with a pressure block that is rotatably connected to the screw.

4. The headphone pressure-maintaining device according to claim 1, characterized in that: The top of the screw is provided with a connecting hole, and the bottom of the square tube is fixed with a connecting block that mates with the connecting hole.

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