A pressure maintaining machine for earphone production assembly

Abstract

The application belongs to earphone processing technical field, and concretely relates to a pressure maintaining machine for earphone production and assembly, which comprises a circular plate and an extrusion assembly, the extrusion assembly comprises a first rectangular plate fixedly connected with the circular plate, a second rectangular plate is fixedly connected with the upper end of the first rectangular plate, a third rectangular plate is fixedly connected with one side of the upper end of the second rectangular plate, a fourth rectangular plate is fixedly connected with the upper end of the third rectangular plate, a hydraulic rod is fixedly connected with the lower end of the fourth rectangular plate, an upper die is fixedly connected with the output end of the hydraulic rod through a fifth rectangular plate, a lower die is fixedly connected with one side of the second rectangular plate, a seventh rectangular plate is rotatably arranged on one side of the second rectangular plate, a U-shaped block is arranged on one side of the seventh rectangular plate, arc-shaped clamping blocks are slidably connected with the two sides of the middle part of the U-shaped block, the U-shaped block is driven by the seventh rectangular plate to extrude the earphone charging contact position, the earphone charging contact position is more tightly installed, the ear bag and the earphone charging contact position can be simultaneously pressure maintained, and the working steps are simplified.

Description

Technical Field

[0001] This invention belongs to the field of headphone processing technology, specifically a pressure holding machine for headphone production and assembly. Background Technology

[0002] For plastic products, pressure holding refers to the stage of applying pressure to the plastic inside the mold cavity according to a specified pressure after the plastic has filled the mold cavity. Since the earphone shells of wireless earphones such as TWS earphones are mostly made of plastic, the pressure holding stage for the earphone shells of TWS earphones is a very important stage.

[0003] A patent with publication number CN212183744U discloses a headphone pressure-holding device. When pressure needs to be applied to the product, the operator only needs to move the handle to drive the transmission unit. The pressure head assembly is driven by the transmission unit to squeeze the product seat assembly, thereby transmitting pressure to the product inside the product seat assembly and completing the pressure holding of the product. No additional electrical wiring is required, simplifying the structure of the headphone pressure-holding device. At the same time, the detachable design of the product seat assembly means that when different headphones need to be pressure-held, only the product seat assembly needs to be replaced, without the need to design an additional pressure-holding device. All of the above reduces costs and facilitates circulation.

[0004] In the aforementioned prior art, when pressurizing the earphones, it is necessary to manually remove the earphones and place them into the pressurizing machine for pressurization. Since the earphones are small and inconvenient to handle, automatic feeding and unloading are not possible.

[0005] Therefore, the present invention provides a pressure holding machine for headphone manufacturing and assembly. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: A pressure holding machine for headphone production and assembly, comprising a circular plate, a support column rotatably connected to the lower end of the circular plate, a worktable fixedly connected to the lower end of the support column, and a plurality of extrusion components arranged around the upper circumference of the circular plate. The extrusion components include a first rectangular plate fixedly connected to the circular plate, a second rectangular plate fixedly connected to the upper end of the first rectangular plate, a third rectangular plate fixedly connected to one side of the upper end of the second rectangular plate, a fourth rectangular plate fixedly connected to the upper end of the third rectangular plate, a hydraulic rod fixedly connected to the lower end of the fourth rectangular plate, a fifth rectangular plate fixedly connected to the output end of the hydraulic rod, an upper mold fixedly connected to one side of the fifth rectangular plate, a lower mold fixedly connected to one side of the second rectangular plate, a seventh rectangular plate rotatably arranged on one side of the second rectangular plate, a U-shaped block provided on one side of the seventh rectangular plate, and arc-shaped clamping blocks slidably connected to both sides of the middle part of the U-shaped block. A feeding component is provided on one side of the circular plate, the feeding component including a first support block fixedly connected to the worktable, the upper end of the first support block being fixedly connected to a second rectangular strip via a first rectangular strip, and a second cylindrical rod fixedly connected to one side of the second rectangular strip via a third rectangular strip.

[0008] Preferably, positioning posts are fixedly connected to both sides of one end of the lower mold, and positioning holes are provided on both sides of one end of the upper mold.

[0009] Preferably, the second rectangular plate is fixedly connected to the sixth rectangular plate inside by a first spring, and the sixth rectangular plate can slide inside the second rectangular plate.

[0010] Preferably, a circular hole is provided on one side of the middle part of the U-shaped block, and the inside of the circular hole is fixed to the first cylindrical block by a third spring.

[0011] Preferably, the seventh rectangular plate has a rectangular groove on one side, and the inside of the rectangular groove is fixed to the first rectangular block by a second spring, and one side of the first rectangular block is fixed to the U-shaped block.

[0012] Preferably, a fourth rectangular bar is fixedly connected to the end of the second cylindrical rod, a seventh rectangular bar is fixedly connected to the end of the second rectangular bar, an eighth rectangular bar is slidably connected to one side of the seventh rectangular bar, a sixth rectangular bar is slidably connected to one side of the fourth rectangular bar, and an arc-shaped block is slidably connected between the sixth rectangular bar and the eighth rectangular bar.

[0013] Preferably, the upper end of the fourth rectangular strip is rotatably connected to a rotating block, and the middle part of the rotating block is fixedly connected to a first lever block.

[0014] Preferably, a third cylindrical block is fixedly connected to one side of the arc-shaped block, a second rectangular block is slidably connected to the middle of the third cylindrical block, and a push block is slidably connected to the upper end of the second rectangular block.

[0015] Preferably, each of the seventh rectangular plates has a plug-in block fixedly connected to one side, and the two fourth rectangular bars are rotatably connected to a third cylindrical rod. The middle two sides of the third cylindrical rod are slidably connected to rectangular tubes, and a fifth rectangular bar is slidably connected to one end of the rectangular tube. A second cylindrical block is fixedly connected to one side of the end of the fifth rectangular bar, and the end of the second cylindrical block can slide into the plug-in block.

[0016] Preferably, a feeding assembly is provided on one side of the circular plate. The feeding assembly includes a second support block fixedly connected to the workbench. On both sides of the upper end of the second support block, waist-shaped blocks are fixedly connected via third rectangular blocks. Rectangular sliders are slidably connected to one side of each waist-shaped block. A fourth cylindrical rod is fixedly connected between the two rectangular sliders. Second levers are fixedly connected to both sides of the middle part of the fourth cylindrical rod. A conveyor belt is installed on the upper end of the workbench. The conveyor belt is located on one side of the second support block.

[0017] The beneficial effects of this invention are as follows: 1. The pressure holding machine for headphone production and assembly described in this invention drives a rotating block to rotate a first paddle block, moving the headphone between the arc-shaped blocks. Then, the arc-shaped blocks are driven to slide on one side of a sixth rectangular bar, bringing the two arc-shaped blocks closer together and ensuring they are in close contact with both sides of the headphone. Subsequently, the sixth rectangular bar is driven to move the arc-shaped blocks on one side of a fourth rectangular bar, causing the headphone to move downwards, positioning the headphone charging contacts between the arc-shaped clamping blocks. This achieves automatic feeding of the headphone, solving the problem of low efficiency due to the inability to automatically feed the headphone.

[0018] 2. The pressure holding machine for headphone production and assembly described in this invention pressurizes the earcup position by driving the upper mold close to the lower mold, and then drives the sixth rectangular plate to move within the second rectangular plate. The seventh rectangular plate drives the U-shaped block to squeeze the headphone charging contact position, making the headphone charging contact position more tightly installed. It can pressurize both the earcup and the headphone charging contact position at the same time, simplifying the work steps. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a perspective view of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the extrusion assembly structure; Figure 3 This is an exploded view of the interior of the second rectangular plate; Figure 4 This is a schematic diagram of the feeding component structure; Figure 5 This is an exploded diagram of the feeding assembly; Figure 6 This is a diagram showing the position of the push block; Figure 7 This is a schematic diagram of the material feeding component structure; In the diagram: 1. Circular plate; 11. First rectangular plate; 12. Second rectangular plate; 121. Third rectangular plate; 122. Fourth rectangular plate; 124. Hydraulic rod; 125. Fifth rectangular plate; 126. Upper mold; 1261. Positioning hole; 127. Lower mold; 1271. Positioning post; 13. First spring; 131. Sixth rectangular plate; 132. Seventh rectangular plate; 133. Rectangular groove; 134. Insertion block; 135. First rectangular block; 136. Second spring; 14. U-shaped block; 141. Circular hole; 142. Third spring; 143. First cylindrical block; 144. Arc-shaped clamping block; 15. Support post; 2. First support block; 21 1. First rectangular bar; 211. Second rectangular bar; 22. Third rectangular bar; 221. Second cylindrical rod; 23. Fourth rectangular bar; 231. Third cylindrical rod; 232. Rectangular cylinder; 233. Fifth rectangular bar; 234. Second cylindrical block; 24. Sixth rectangular bar; 25. Seventh rectangular bar; 251. Third cylindrical block; 252. Second rectangular block; 253. Push block; 26. Eighth rectangular bar; 27. Arc block; 28. Rotating block; 281. First deflector block; 3. Second support block; 31. Third rectangular block; 32. Waist-shaped block; 33. Rectangular slider; 34. Fourth cylindrical rod; 35. Second deflector block; 36. Conveyor belt; 4. Workbench. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments. Example

[0022] like Figures 1-4As shown in the embodiment of the present invention, a pressure holding machine for headphone production and assembly includes a circular plate 1. A support column 15 is rotatably connected to the lower end of the circular plate 1. A worktable 4 is fixedly connected to the lower end of the support column 15. Several extrusion components are provided around the upper periphery of the circular plate 1. Each extrusion component includes a first rectangular plate 11 fixedly connected to the circular plate 1. A second rectangular plate 12 is fixedly connected to the upper end of the first rectangular plate 11. A third rectangular plate 121 is fixedly connected to one side of the upper end of the second rectangular plate 12. A fourth rectangular plate 122 is fixedly connected to the upper end of the third rectangular plate 121. A hydraulic rod 124 is fixedly connected to the lower end of the fourth rectangular plate 122. A fifth rectangular plate 124 is fixedly connected to the output end of the hydraulic rod 124. The fifth rectangular plate 125 has an upper mold 126 fixedly connected to one side, and a lower mold 127 fixedly connected to one side of the second rectangular plate 12. A seventh rectangular plate 132 is rotatably arranged on one side of the second rectangular plate 12. A U-shaped block 14 is provided on one side of the seventh rectangular plate 132. Arc-shaped clamping blocks 144 are slidably connected to both sides of the middle part of the U-shaped block 14. A feeding assembly is provided on one side of the circular plate 1. The feeding assembly includes a first support block 2 fixedly connected to the workbench 4. The upper end of the first support block 2 is fixedly connected to the second rectangular bar 211 through a first rectangular bar 21. A second cylindrical rod 221 is fixedly connected to one side of the second rectangular bar 211 through a third rectangular bar 22.

[0023] Specifically, after applying adhesive to the earphones, the earcups and the shell are assembled. After assembly, the earphones need to be pressurized to ensure the assembly gaps are sealed tightly. During pressurization, the earphones are often manually placed into a mold for compression. However, due to the small size of the earphones, stacking them haphazardly makes them inconvenient to handle. In this invention, several assembled earphones are placed between two second cylindrical rods 221, with the earcups positioned at the top, and the earphones neatly arranged between the two second cylindrical rods 221. At this time, the seventh rectangular plate 132 and the second rectangular plate 12 are in a horizontal position. Then, one end of the earphone charging contact is placed between the arc-shaped clamping blocks 144. The arc-shaped clamping blocks 144 are then driven to move closer together to clamp one end of the earphone charging contact. Finally, the seventh rectangular plate 132 is driven to rotate 90 degrees, via U... The shape block 14 drives the earphone in the middle of the arc-shaped clamping block 144 to rotate 90 degrees. At this time, the earphone is located in the lower mold 127, with the earcups facing upwards. Then, the hydraulic rod 124 is driven to extend, and the upper mold 126 is driven to move downwards through the fifth rectangular plate 125 until the upper mold 126 and the lower mold 127 are in contact, and the earcups are in the upper mold 126. At this time, the pressure holding of the earphone is completed. Then, the circular plate 1 is driven to rotate, which drives the next extrusion assembly to be located on one side of the first support block 2. The earphones are installed in the extrusion assembly in sequence for pressure holding. The contact points between the upper mold 126 and the lower mold 127 and the earphones are made of rubber to prevent excessive extrusion from damaging the earphones. By placing the earphones between the second cylindrical rods 221, the orientation of several earphones is kept consistent, which solves the problem of the small size of the earphones and the inconvenience of stacking them up.

[0024] like Figure 3 As shown, in this embodiment, positioning posts 1271 are fixedly connected to both sides of one end of the lower mold 127, and positioning holes 1261 are provided on both sides of one end of the upper mold 126.

[0025] Specifically, when applying pressure to the headphones, it is necessary to ensure that the upper mold 126 and the lower mold 127 are completely aligned to prevent damage to the headphones during compression. When using this invention, when the hydraulic rod 124 moves the upper mold 126 downwards towards the lower mold 127, the positioning post 1271 at the upper end of the lower mold 127 is inserted into the positioning hole 1261, ensuring that the upper mold 126 and the lower mold 127 are always in contact. If the upper mold 126 and the lower mold 127 are offset, the positioning post 1271 cannot be inserted into the positioning hole 1261, and the upper mold 126 and the lower mold 127 cannot be in contact. Timely repair is required to prevent subsequent damage to the headphones.

[0026] like Figure 3 As shown, in this embodiment, the second rectangular plate 12 is fixedly connected to the sixth rectangular plate 131 by the first spring 13, and the sixth rectangular plate 131 can slide inside the second rectangular plate 12.

[0027] Specifically, the sixth rectangular plate 131 is electrically controlled and can control the horizontal sliding within the second rectangular plate 12. The headphone charging contact position also needs to be pressure-held. When using this invention, after driving the upper mold 126 to approach the lower mold 127 to hold the headphone earcup position, the sixth rectangular plate 131 is controlled to move within the second rectangular plate 12. The seventh rectangular plate 132 drives the U-shaped block 14 to squeeze the headphone charging contact position, making the headphone charging contact position more tightly installed. It can simultaneously hold the earcup and the headphone charging contact position, improving work efficiency.

[0028] like Figure 3 As shown, the U-shaped block 14 in this embodiment has a circular hole 141 on one side of the middle part, and the circular hole 141 is fixed to the first cylindrical block 143 by a third spring 142.

[0029] Specifically, when the seventh rectangular plate 132 is driven to approach the headphone charging contact to maintain pressure, the U-shaped block 14 drives the first cylindrical block 143 to contact the headphone charging contact. When the seventh rectangular plate 132 approaches and squeezes the headphone charging contact, it simultaneously drives the first cylindrical block 143 to squeeze the third spring 142 to prevent excessive squeezing of the headphone charging contact and damage. The first cylindrical block 143 is made of rubber to prevent scratches on the headphone charging contact during squeezing.

[0030] like Figure 3As shown, in this embodiment, the seventh rectangular plate 132 is provided with a rectangular groove 133 on one side. The inner side of the rectangular groove 133 is fixed to the first rectangular block 135 by the second spring 136. The first rectangular block 135 is fixed to the U-shaped block 14 on one side.

[0031] Specifically, when the upper mold 126 squeezes the earphone, since the upper mold 126 and the lower mold 127 are made of rubber, the earphone charging contact is held by the arc-shaped clamping block 144, and the earphone ear cup is squeezed downward, which may cause the middle of the earphone to break. When using this invention, when the earphone ear cup is squeezed, the U-shaped block 14 simultaneously drives the first rectangular block 135 to slide in the rectangular groove 133 and squeeze the second spring 136. The U-shaped block 14 drives the arc-shaped clamping block 144 to move with the position of the earphone ear cup to prevent the earphone from being damaged.

[0032] like Figures 4-5 As shown, in this embodiment, the second cylindrical rod 221 is fixedly connected to the end of a fourth rectangular bar 23, the second rectangular bar 211 is fixedly connected to the end of a seventh rectangular bar 25, an eighth rectangular bar 26 is slidably connected to one side of the seventh rectangular bar 25, a sixth rectangular bar 24 is slidably connected to one side of the fourth rectangular bar 23, and an arc-shaped block 27 is slidably connected between the sixth rectangular bar 24 and the eighth rectangular bar 26.

[0033] Specifically, the arc-shaped block 27 and the sixth rectangular bar 24 are electrically controlled. The arc-shaped block 27 can be controlled to slide horizontally on one side of the sixth rectangular bar 24, and the sixth rectangular bar 24 can be controlled to slide vertically on one side of the fourth rectangular bar 23, moving the earphone between the arc-shaped blocks 27. Then, the arc-shaped block 27 is controlled to slide on one side of the sixth rectangular bar 24, so that the two arc-shaped blocks 27 are close to each other and pressed tightly against both sides of the earphone. Then, the sixth rectangular bar 24 is controlled to drive the arc-shaped block 27 to slide on one side of the fourth rectangular bar 23. The arc-shaped block 27 drives the earphone to move downward, so that the earphone charging contact is located between the arc-shaped clamping blocks 144. Then, the earphone is held under pressure, and the earphone is clamped by driving the arc-shaped block 27. Then, the arc-shaped block 27 is driven to move the earphone downward and send the earphone to the middle of the arc-shaped clamping block 144. The earphone can be automatically fed, reducing manual work procedures.

[0034] like Figure 5 As shown, in this embodiment, the upper end of the fourth rectangular strip 23 is rotatably connected to a rotating block 28, and the middle part of the rotating block 28 is fixedly connected to a first lever block 281.

[0035] Specifically, by driving the rotating block 28 to rotate, the first lever block 281 is driven to rotate. The simultaneous rotation of the first lever blocks 281 on both sides can move the earphone in the middle of the second cylindrical rod 221 to the arc-shaped block 27, thus automatically feeding the earphone.

[0036] like Figure 6 As shown in the figure, in this embodiment, a third cylindrical block 251 is fixedly connected to one side of the arc-shaped block 27, a second rectangular block 252 is slidably connected to the middle of the third cylindrical block 251, and a push block 253 is slidably connected to the upper end of the second rectangular block 252.

[0037] Specifically, when the earphone is moved between the arc-shaped blocks 27, the position of the earphone cannot be determined, and it may not be possible for the earphone to be positioned between the arc-shaped clamping blocks 144. When using this invention, after the earphone is moved between the arc-shaped blocks 27, the second rectangular block 252 is driven to push the push block 253 to slide on the third cylindrical block 251. The push blocks 253 on both sides move closer to the earphone at the same time, so that the earphone is positioned in the middle of the arc-shaped blocks 27. When the earphone moves down, it can be positioned between the arc-shaped clamping blocks 144, making it convenient to clamp the earphone.

[0038] like Figure 3 , Figure 5 As shown, in this embodiment, several seventh rectangular plates 132 are respectively fixed to one side of each of them, and a first pulling assembly is provided between the two fourth rectangular strips 23. The first pulling assembly includes a third cylindrical rod 231 that is rotatably connected between the two fourth rectangular strips 23. Rectangular tubes 232 are slidably connected to both sides of the middle part of the third cylindrical rod 231. A fifth rectangular strip 233 is slidably connected to one end of the rectangular tube 232. A second cylindrical block 234 is fixed to one side of the end of the fifth rectangular strip 233. The end of the second cylindrical block 234 can slide into the interior of the plug-in block 134.

[0039] Specifically, the sixth rectangular plate 131 and the seventh rectangular plate 132 are connected by a torsion spring. The seventh rectangular plate 132 and the sixth rectangular plate 131 always remain perpendicular. When the seventh rectangular plate 132 moves to one side of the first support block 2, the driving rectangular cylinder 232 drives the second cylindrical block 234 through the fifth rectangular bar 233, and moves closer to the insertion block 134 until the second cylindrical block 234 is inserted into both sides of the insertion block 134. Then, the driving fifth rectangular bar 233 slides into the rectangular cylinder 232, and the insertion block 134 pulls the seventh rectangular plate 132 to one side until the seventh rectangular plate 132 and the sixth rectangular plate 131 are in a horizontal state. The seventh rectangular plate 132 drives the arc-shaped clamping block 144 to be located on both sides of the headphone charging contacts, which facilitates the installation of the headphones. Example

[0040] like Figure 7As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a feeding assembly is provided on one side of the circular plate 1. The feeding assembly includes a second support block 3 fixedly connected to the workbench 4. A second pulling assembly is provided on the upper end of the second support block 3. The second pulling assembly has the same structure as the first pulling assembly. Waist-shaped blocks 32 are fixedly connected to both sides of the upper end of the second support block 3 through a third rectangular block 31. A rectangular slider 33 is slidably connected to one side of the waist block 32. A fourth cylindrical rod 34 is fixedly connected between the two rectangular sliders 33. A second lever block 35 is fixedly connected to both sides of the middle part of the fourth cylindrical rod 34. A conveyor belt 36 is installed on the upper end of the workbench 4. The conveyor belt 36 is located on one side of the second support block 3.

[0041] Specifically, by driving the second pulling component, 132 and the sixth rectangular plate 131 are brought to a horizontal state, and the earphone in the middle of the arc-shaped clamping block 144 is brought to a vertical state. The rectangular slider 33 is electrically controlled and can be controlled to slide horizontally on one side of the waist block 34. After the earphone is pressure-held, the circular plate 1 moves the pressure-held earphone to one side of the second support block 3. Then, the rectangular slider 33 is controlled to slide on one side of the waist block 32 towards the earphone. The rectangular slider 33 drives the second lever 35 to move towards both sides of the earphone through the fourth cylindrical rod 34, so that the second lever 35 is located on both sides of the earphone. At this time, the earphone is located on the upper end of the second lever 35. The first cylindrical rod 34 is electrically controlled and can control the second lever 35 to rotate upward in the middle of the fourth cylindrical rod 34. The second lever 35 carries the earphone to the upper end of the conveyor belt 36 and conveys the earphone to the next process.

[0042] Working principle: Several assembled earphones are placed between two second cylindrical rods 221, with the earcups positioned at the top. The sixth rectangular plate 131 and the seventh rectangular plate 132 are connected by a torsion spring, and the seventh rectangular plate 132 and the sixth rectangular plate 131 always remain perpendicular. When the seventh rectangular plate 132 moves to one side of the first support block 2, the driving rectangular cylinder 232 drives the second cylindrical block 234 through the fifth rectangular bar 233, simultaneously moving it closer to the insertion block 134 until the second cylindrical block 234 is inserted into both sides of the insertion block 134. Then, the driving fifth rectangular bar 233 slides into the rectangular cylinder 232, pulling the seventh rectangular plate 132 to one side through the insertion block 134 until the seventh rectangular plate 132 and the sixth rectangular plate 131 are in a horizontal state. Subsequently, the driving rotating block 28 rotates, causing the first lever 281 to rotate. The simultaneous rotation of the first levers 281 on both sides can move the earphone in the middle of the second cylindrical rod 221 to an arc shape. Between blocks 27, the second rectangular block 252 is driven to push the push block 253 to slide on the third cylindrical block 251. The push blocks 253 on both sides move closer to the earphone, so that the earphone is located in the middle of the arc block 27. Then, the arc block 27 is driven to slide on one side of the sixth rectangular bar 24, so that the two arc blocks 27 move closer to each other and the arc block 27 is pressed against both sides of the earphone. Then, the sixth rectangular bar 24 is driven to drive the arc block 27 to slide on one side of the fourth rectangular bar 23. The arc block 27 moves the earphone downward, so that the earphone charging contact is located between the arc clamping blocks 144. Then, the earphone is held under pressure and clamped by driving the arc block 27. Then, the arc block 27 moves the earphone downward and sends the earphone to the middle of the arc clamping block 144. The clamping block 144 is driven to clamp the earphone. Then, the second cylindrical block 234 is driven to disengage from both sides of the plug block 134. Under the action of the torsion spring, the seventh rectangular plate 132 and the sixth rectangular plate 131 are kept perpendicular. At this time, the earphone is located in the lower mold 127, with the earcups at the upper end. Then, the hydraulic rod 124 is driven to extend, and the upper mold 126 is moved downward through the fifth rectangular plate 125 until the earcups are located in the middle of the upper mold 126, until the upper mold 126 and the lower mold 127 are in contact. At the same time, the sixth rectangular plate 131 is driven to move within the second rectangular plate 12, and the U-shaped block 14 is driven by the seventh rectangular plate 132 to press the earphone charging contact position, so that the earphone charging contact position is installed more tightly. The earcups and the earphone charging contact position can be pressed at the same time, improving work efficiency. Subsequently, the drive plate 1 rotates, causing the extrusion assembly to move sequentially to one side of the first support block 2 to install the earphone for extrusion. After processing, the earphone moves to one side of the second support block 3. Then, the drive rectangular slider 33 slides towards the earphone side on one side of the waist block 32. The rectangular slider 33 drives the second lever 35 to move towards both sides of the earphone through the fourth cylindrical rod 34, so that the second lever 35 is located on both sides of the earphone. At this time, the earphone is located on the upper end of the second lever 35. Then, the drive drive the second lever 35 to rotate upward in the middle of the fourth cylindrical rod 34. The second lever 35 carries the earphone to the upper end of the conveyor belt 36 and conveys the earphone to the next process.

[0043] 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 present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure holding machine for headphone manufacturing and assembly, characterized in that: The device includes a circular plate, with a support column rotatably connected to its lower end. A worktable is fixedly connected to the lower end of the support column. Several extrusion components are arranged around the upper perimeter of the circular plate. Each extrusion component includes a first rectangular plate fixedly connected to the circular plate, a second rectangular plate fixedly connected to the upper end of the first rectangular plate, a third rectangular plate fixedly connected to one side of the upper end of the second rectangular plate, a fourth rectangular plate fixedly connected to the upper end of the third rectangular plate, a hydraulic rod fixedly connected to the lower end of the fourth rectangular plate, a fifth rectangular plate fixedly connected to the output end of the hydraulic rod, an upper mold fixedly connected to one side of the fifth rectangular plate, a lower mold fixedly connected to one side of the second rectangular plate, a seventh rectangular plate rotatably arranged on one side of the second rectangular plate, a U-shaped block on one side of the seventh rectangular plate, and arc-shaped clamping blocks slidably connected to both sides of the middle of the U-shaped block. A feeding component is arranged on one side of the circular plate. The feeding component includes a first support block fixedly connected to the worktable. The upper end of the first support block is fixedly connected to a second rectangular strip via a first rectangular strip, and a second cylindrical rod is fixedly connected to one side of the second rectangular strip via a third rectangular strip. The second rectangular plate is fixed to the sixth rectangular plate by a first spring, and the sixth rectangular plate can slide inside the second rectangular plate; The sixth rectangular plate and the seventh rectangular plate are connected by a torsion spring. The movement of the sixth rectangular plate within the second rectangular plate is controlled by the seventh rectangular plate, which in turn drives the U-shaped block to press against the headphone charging contact. The ends of the second cylindrical rod are respectively fixed with a fourth rectangular strip, the ends of the second rectangular strip are respectively fixed with a seventh rectangular strip, an eighth rectangular strip is slidably connected to one side of the seventh rectangular strip, a sixth rectangular strip is slidably connected to one side of the fourth rectangular strip, and an arc-shaped block is slidably connected between the sixth rectangular strip and the eighth rectangular strip. The upper end of the fourth rectangular bar is rotatably connected to a rotating block, and the middle part of the rotating block is fixedly connected to a first lever block. The drive block rotates the first lever, causing the earphone to move between the arc blocks. Then, the drive block slides on one side of the sixth rectangular bar, bringing the two arc blocks closer together and making them fit tightly against the sides of the earphone. Then, the drive block moves the sixth rectangular bar to slide the arc block on one side of the fourth rectangular bar, causing the earphone to move downwards, so that the earphone charging contacts are located between the arc clamping blocks, thus achieving automatic feeding of the earphone.

2. The pressure holding machine for headphone production and assembly according to claim 1, characterized in that: The lower mold has positioning posts fixed to both sides at one end, and the upper mold has positioning holes on both sides at one end.

3. The pressure holding machine for headphone production and assembly according to claim 1, characterized in that: A circular hole is provided on one side of the middle part of the U-shaped block, and the inside of the circular hole is fixed to the first cylindrical block by a third spring.

4. The pressure holding machine for headphone production and assembly according to claim 1, characterized in that: The seventh rectangular plate has a rectangular groove on one side, and one side of the inside of the rectangular groove is fixed to the first rectangular block by a second spring. One side of the first rectangular block is fixed to the U-shaped block.

5. A pressure holding machine for headphone production and assembly according to claim 1, characterized in that: A third cylindrical block is fixedly connected to one side of the arc-shaped block, a second rectangular block is slidably connected to the middle of the third cylindrical block, and a push block is slidably connected to the upper end of the second rectangular block.

6. A pressure holding machine for headphone production and assembly according to claim 1, characterized in that: A plug-in block is fixedly connected to one side of each of the seventh rectangular plates. A third cylindrical rod is rotatably connected between the two fourth rectangular bars. A rectangular tube is slidably connected to both sides of the middle of the third cylindrical rod. A fifth rectangular bar is slidably connected to one end of the rectangular tube. A second cylindrical block is fixedly connected to one side of the end of the fifth rectangular bar. The end of the second cylindrical block can slide into the plug-in block.

7. A pressure holding machine for headphone production and assembly according to claim 1, characterized in that: A feeding assembly is provided on one side of the circular plate. The feeding assembly includes a second support block fixedly connected to the workbench. On both sides of the upper end of the second support block, there are waist-shaped blocks fixedly connected to the third rectangular blocks. Rectangular sliders are slidably connected to one side of each waist block. A fourth cylindrical rod is fixedly connected between the two rectangular sliders. Second levers are fixedly connected to both sides of the middle part of the fourth cylindrical rod. A conveyor belt is installed on the upper end of the workbench. The conveyor belt is located on one side of the second support block.

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