An efficient dispensing equipment for earphone production

Abstract

The present invention relates to the field of earphone production technology, and discloses an efficient glue dispensing device for earphone production. The present invention solves the problem that the existing efficient glue dispensing device for earphone production is difficult to dispense glue at the joints of head-mounted elliptical earphone shells of different diameters, has low adjustment flexibility, and has low fit. The present invention flexibly fixes the earphone shell through a screw mechanism driven by a bidirectional motor, and can automatically adjust the position of the glue dispensing head to adapt to earphone shells of different diameters. The perforations, pressure plates, and hemispherical clamping structures provided on the rotating plate not only ensure the stability of the glue dispensing head during the rotation process, but also facilitate the rapid replacement of the position of the glue dispensing head, with high flexibility. At the same time, the combination of the slide groove and the slider realizes the smooth movement of the glue dispensing head along the elliptical trajectory, ensuring the uniformity and fit of the glue dispensing. In addition, the provision of the cleaning cotton further improves the glue dispensing quality, and the glue dispensing quality of the earphone shell is improved by pre-cleaning the dust on the edge of the earphone shell.

Description

Technical Field

[0001] The invention relates to the technical field of earphone production, and in particular to a high-efficiency glue dispensing device for earphone production. Background Art

[0002] With the increasing demand for music, entertainment and communication, the headphone market has shown a continuous growth trend. Headphones are widely welcomed by consumers for their comfortable wearing experience, excellent sound quality and stylish appearance design. Existing headphone shells generally have a variety of forms, including round, oval and other irregular shapes. In the headphone production process, it is very important to ensure the sealing and firmness of the shell joints.

[0003] During the operation of the existing high-efficiency glue dispensing equipment for earphone production, a servo control system is usually used in conjunction with a loading and unloading device to dispense glue on the earphone shell, and then the mold is closed. However, for some earphone shells with more regular shapes, such as ovals, the use of a servo control system requires a large equipment investment, and the equipment debugging is relatively complicated, and the subsequent maintenance is expensive.

[0004] Therefore, it is necessary to design a glue dispensing device for assembling earphones with an oval shell. Summary of the invention

[0005] The purpose of the present invention is to provide an efficient glue dispensing device for earphone production. By adopting the device to work, the problems that the existing efficient glue dispensing device for earphone production is difficult to dispense glue at the joints of the shells of head-mounted elliptical earphones with different diameters, has low adjustment flexibility and low fit are solved.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an efficient glue dispensing device for earphone production, comprising a workbench, a frame arranged on the top of the workbench, a cylinder arranged on one side of the frame, and a glue dispensing head arranged at the output end of the cylinder, wherein a clamping structure for fixing the earphone shell is arranged inside the workbench, and a rotating fitting structure for the glue dispensing head to fit the joint of earphone shells of different diameters is arranged between the frames;

[0007] The rotating fitting structure includes a support rod fixedly installed on one side of the frame, an extension plate arranged at the bottom end of the support rod, and a gear 1 rotatably connected to the side of the extension plate close to the shell. The rotating fitting structure also includes a gear ring slidably connected to the side of the extension plate close to the shell. Gear 1 is meshed with the gear ring, and one side of the gear ring is also meshed with gear 2. Gear 2 moves in a circular motion driven by the meshing gear ring. A rotating rod is arranged on one side of the rotating rod, and a rotating plate is arranged on one side of the rotating rod. A fixed rod is arranged on the side of the rotating plate away from the rotating rod. The top end of the fixed rod is rotatably connected to the first plate, and the fixed rod is located in the middle position of the first plate. The fixed rod drives the first plate to move in a circular trajectory around the center point of the extension plate. The first plate The two ends are rotatably connected with connecting rod 1 and connecting rod 2, and each end of connecting rod 1 and connecting rod 2 is respectively provided with slider 1 and slider 2, and the rotating fitting structure also includes a trapezoidal plate embedded in the surface of the extension plate, and the surface of the trapezoidal plate is provided with slide groove 1 and slide groove 2, and slide groove 1 and slide groove 2 are cross-shaped, and slider 1 and slider 2 slide in slide groove 1 and slide groove 2 respectively, and the cross-sections of slider 1, slider 2, slide groove 1 and slide groove 2 are T-shaped, and the end of the first plate away from the connecting rod 1 is provided with a second plate, and one end of the second plate is provided with a revolving plate, and the surface of the revolving plate is provided with perforations, and the perforations are provided in three groups, and the three groups of perforations correspond to the splicing and gluing points of the head-mounted elliptical headphone shells with different diameters;

[0008] A fixing structure for clamping the dispensing head is arranged on both sides of the perforation, and the fixing structure includes a connecting groove opened on the surface of the rotating plate, a pressing plate rotatably connected inside the connecting groove, and hemisphere one and hemisphere two arranged at both ends of the pressing plate.

[0009] Furthermore, a motor is fixedly mounted on one side of the extension plate, and an output end of the motor passes through a rod groove provided on the surface of the extension plate, and the output end of the motor is connected to gear one.

[0010] Furthermore, the cross section of the gear ring is trapezoidal, and the protruding portion of the gear ring slides in a circular groove provided on the surface of the extension plate.

[0011] Furthermore, a rotating column is rotatably connected inside the connecting groove, the rotating column is connected to the middle part of the pressing plate, and springs are arranged at both ends of the rotating column, one end of the spring is connected to the connecting groove.

[0012] Furthermore, a pull wire is connected to the surface of the rotating column, and the pull wire is wound around the surface of the rotating column for several circles. A wire groove is opened on the surface of the rotating plate. When the pull wire moves in the wire groove, a pull ring is provided on one end of the pull wire protruding from the rotating plate.

[0013] Furthermore, hydraulic rods are arranged on both sides of the rotating plate, and two groups of hydraulic rods are symmetrically arranged. The output ends of the two groups of hydraulic rods are respectively provided with side blocks, and a long rod is arranged between the two groups of side blocks, and the pull ring is passed through the surface of the long rod.

[0014] Furthermore, cleaning cotton is provided on one side of the rotating plate. There are three groups of cleaning cotton. The three groups of cleaning cotton are located on the side where the rotating plate rotates clockwise around the extension plate. The three groups of cleaning cotton correspond to the perforated positions. The cleaning cotton is used to remove dust from the glue joints of the earphone shell.

[0015] Furthermore, the clamping structure includes a groove opened on the surface of the workbench, a bidirectional motor is fixedly installed inside the groove, screw rods are arranged at both ends of the bidirectional motor, and two groups of screw rods are symmetrically distributed, and one end of each group of screw rods away from the bidirectional motor is rotatably connected to the groove, and moving blocks are rotatably connected to the surfaces of the two groups of screw rods, and the bottom ends of the two groups of moving blocks are slidably connected to the grooves, and splints are respectively arranged on the top ends of the two groups of moving blocks, and the two groups of splints move in opposite directions, and the two groups of splints slide in the long grooves opened on the top surface of the workbench.

[0016] Furthermore, a stabilizing structure is provided on one side of the splint, and the stabilizing structure includes a slot opened on the surface of the splint, a rotating rod is rotatably connected inside the slot, and extrusion plates are provided on both sides of the rotating rod, one end of the extrusion plate is inclined, and a suction cup 2 is provided at the other end of the extrusion plate.

[0017] Furthermore, a spring is provided on the same side of the splint and the extrusion plate, a rubber airbag is provided on the side of the spring away from the splint, the rubber airbag is arc-shaped, and air outlets are connected on both sides of the rubber airbag, and there are multiple groups of air outlets. Compression springs are symmetrically arranged inside the rubber airbag, and a suction cup one is provided on one side of the rubber airbag, and there are multiple groups of suction cups at equal intervals, and the suction cup one is used to adsorb and fix the earphone shell.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention proposes an efficient glue dispensing device for earphone production. The existing efficient glue dispensing device for earphone production is difficult to dispense glue at the joints of head-mounted elliptical earphone shells with different diameters, and has low adjustment flexibility and low fit. The present invention flexibly fixes the earphone shell through a screw rod mechanism driven by a bidirectional motor, and can automatically adjust the position of the glue dispensing head to adapt to earphone shells with different diameters, thereby realizing efficient and accurate glue dispensing operations on head-mounted elliptical earphone shells of various sizes. The perforations, pressing plates and hemispherical clamping structures arranged on the rotating plate not only ensure the stability of the glue dispensing head during the rotation process, but also facilitate the rapid replacement of the position of the glue dispensing head, thereby improving the operational flexibility. At the same time, combined with the cooperation of the slide groove and the slider, the smooth movement of the glue dispensing head along the elliptical trajectory is realized, thereby ensuring the uniformity and fit of the glue dispensing. In addition, the provision of the cleaning cotton further improves the glue dispensing quality, and by pre-cleaning the dust on the edge of the earphone shell, the accuracy and aesthetics of the glue dispensing are ensured, thereby improving the degree of automation and the glue dispensing quality of the earphone shell glue dispensing operation. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 It is a schematic diagram of the overall three-dimensional unfolded structure of the present invention;

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the workbench and the clamping structure of the present invention;

[0023] Figure 4 A schematic diagram of a three-dimensional structure of the stable structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the rubber airbag, the compression spring and the suction cup 1 of the present invention;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the rotating fitting structure, the fixing structure and the cleaning cotton of the present invention;

[0026] Figure 7 It is a schematic diagram of a three-dimensional partial structure of the rotating bonding structure of the present invention in a flipped-up state;

[0027] Figure 8 It is a schematic diagram of a three-dimensional partial expansion structure of the rotational bonding structure of the present invention;

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the fixing structure and the cleaning cotton of the present invention.

[0029] In the figure: 1. workbench; 2. frame; 3. cylinder; 4. dispensing head; 5. clamping structure; 51. groove; 52. bidirectional motor; 53. screw rod; 54. moving block; 55. clamping plate; 6. stable structure; 61. spring; 62. rubber airbag; 63. air outlet; 64. suction cup 1; 65. notch; 66. rotating rod; 67. extrusion plate; 68. suction cup 2; 69. compression spring; 7. rotating fitting structure; 71. support rod; 72. extension plate; 73. gear ring; 74. gear 1; 75. motor; 76. gear 2; 77. rotating rod; 7 8. Rotating plate; 79. Fixed rod; 710. First plate; 711. Connecting rod one; 712. Slider one; 713. Connecting rod two; 714. Slider two; 715. Trapezoidal plate; 716. Slide groove one; 717. Slide groove two; 718. Second plate; 719. Rotating plate; 720. Perforation; 8. Fixed structure; 81. Connecting groove; 82. Rotating column; 83. Spring; 84. Pressing plate; 85. Hemisphere one; 86. Hemisphere two; 87. Pull wire; 88. Pull ring; 89. Long rod; 810. Edge block; 811. Hydraulic rod; 9. Cleaning cotton. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0032] Combination Figure 1-Figure 3 and Figure 6-Figure 9 A high-efficiency glue dispensing equipment for earphone production includes a workbench 1, a frame 2 arranged on the top of the workbench 1, a cylinder 3 arranged on one side of the frame 2 and a glue dispensing head 4 arranged at the output end of the cylinder 3, a clamping structure 5 for fixing the earphone shell is arranged inside the workbench 1, and a rotating fitting structure 7 is arranged between the frames 2 for the glue dispensing head 4 to fit the joints of earphone shells of different diameters for glue dispensing.

[0033] The present invention will be further described below in conjunction with the embodiments.

[0034] See also Figure 1-9The rotating fitting structure 7 includes a support rod 71 fixedly mounted on one side of the frame 2, an extension plate 72 arranged at the bottom end of the support rod 71, a gear 1 74 rotatably connected to the extension plate 72 near the shell side, and the rotating fitting structure 7 also includes a gear ring 73 slidably connected to the extension plate 72 near the shell side, the gear 1 74 is meshed with the gear ring 73, and one side of the gear ring 73 is also meshed with a gear 2 76, and the gear 2 76 moves in a circular motion under the drive of the meshing gear ring 73, and a rotating rod 77 is arranged on one side of the rotating rod 77, and one side of the rotating rod 77 is arranged There is a rotating plate 78, and a fixed rod 79 is arranged on one side of the rotating plate 78 away from the rotating rod 77. The top of the fixed rod 79 is rotatably connected to the first plate 710. The fixed rod 79 is located in the middle of the first plate 710. The fixed rod 79 drives the first plate 710 to move in a circular trajectory around the center point of the extension plate 72. The two ends of the first plate 710 are rotatably connected to a connecting rod 1 711 and a connecting rod 2 713. The connecting rod 1 711 and the connecting rod 2 713 are respectively provided with a slider 1 712 and a slider 2 714 at one end. The rotating fitting structure 7 also includes an embedded A trapezoidal plate 715 is arranged on the surface of the extension plate 72, and a slide groove 1 716 and a slide groove 2 717 are provided on the surface of the trapezoidal plate 715, and the slide groove 1 716 and the slide groove 2 717 are in a cross shape, and the slider 1 712 and the slider 2 714 slide in the slide groove 1 716 and the slide groove 2 717 respectively, and the cross-sections of the slider 1 712, the slider 2 714, the slide groove 1 716 and the slide groove 2 717 are in a T-shape, and the end of the first plate 710 away from the connecting rod 1 711 is provided with a second plate 718, and one end of the second plate 718 is provided with a revolving plate 719, and the revolving plate The surface of 719 is provided with perforations 720, and there are three groups of perforations 720. The three groups of perforations 720 correspond to the splicing and gluing locations of the head-mounted oval headphone shells of different diameters. A motor 75 is fixedly installed on one side of the extension plate 72, and the output end of the motor 75 passes through the rod groove provided on the surface of the extension plate 72. The output end of the motor 75 is connected to a gear 74. The cross-section of the gear ring 73 is trapezoidal, and the protruding part of the gear ring 73 slides in the circular groove provided on the surface of the extension plate 72, so as to automatically adjust the position of the gluing head 4 to adapt to the headphone shells of different diameters.

[0035] The through hole 720 is provided with a fixing structure 8 for clamping the dispensing head 4 on both sides, and the fixing structure 8 includes a connecting groove 81 opened on the surface of the rotating plate 719, a pressing plate 84 rotatably connected to the inside of the connecting groove 81, a hemisphere 1 85 and a hemisphere 2 86 arranged at both ends of the pressing plate 84, and a rotating column 82 is rotatably connected to the inside of the connecting groove 81, and the rotating column 82 is connected to the middle part of the pressing plate 84. Springs 83 are provided at both ends of the rotating column 82, and one end of the spring 83 is connected to the connecting groove 81. A pull wire 87 is connected to the surface of the rotating column 82, and the pull wire 87 is wound around Wrapped around the surface of the rotating column 82 for several circles, a wire groove is opened on the surface of the rotating plate 719, and the pull wire 87 moves in the wire groove. A pull ring 88 is provided at one end of the pull wire 87 protruding from the rotating plate 719, and hydraulic rods 811 are provided on both sides of the rotating plate 719. Two groups of hydraulic rods 811 are symmetrically arranged, and the output ends of the two groups of hydraulic rods 811 are respectively provided with side blocks 810, and a long rod 89 is provided between the two groups of side blocks 810. The pull ring 88 is passed through the surface of the long rod 89, so that the dispensing head 4 can move smoothly along the elliptical trajectory, ensuring the uniformity and fit of the dispensing.

[0036] Cleaning cotton 9 is arranged on one side of the rotating plate 719. There are three groups of cleaning cotton 9. The three groups of cleaning cotton 9 are located on the side where the rotating plate 719 rotates clockwise around the extension plate 72. The three groups of cleaning cotton 9 correspond to the positions of the perforations 720. The cleaning cotton 9 is used to remove dust from the splicing glue spots of the earphone shell, thereby improving the glue spotting quality.

[0037] The clamping structure 5 includes a groove 51 opened on the surface of the workbench 1, a bidirectional motor 52 is fixedly installed inside the groove 51, screw rods 53 are arranged at both ends of the bidirectional motor 52, and two groups of screw rods 53 are symmetrically distributed. One end of each of the two groups of screw rods 53 away from the bidirectional motor 52 is rotatably connected to the groove 51, and the surfaces of the two groups of screw rods 53 are rotatably connected with moving blocks 54 respectively. The bottom ends of the two groups of moving blocks 54 are slidably connected to the groove 51, and the tops of the two groups of moving blocks 54 are respectively provided with splints 55. The two groups of splints 55 move in opposite directions, and the two groups of splints 55 slide in the long groove opened on the top surface of the workbench 1. A stabilizing structure 6 is arranged on one side of the splint 55, and the stabilizing structure 6 includes a notch opened on the surface of the splint 55 65, the internal rotation of the slot 65 is connected with a rotating rod 66, and extrusion plates 67 are arranged on both sides of the rotating rod 66, one end of the extrusion plate 67 is inclined, and a suction cup 2 68 is arranged on the other end of the extrusion plate 67, and a spring 61 is also arranged on the same side of the clamping plate 55 and the extrusion plate 67, and a rubber air bag 62 is arranged on the side of the spring 61 away from the clamping plate 55, and the rubber air bag 62 is arc-shaped, and air outlets 63 are connected on both sides of the rubber air bag 62, and multiple groups of air outlets 63 are arranged, and compression springs 69 are symmetrically arranged inside the rubber air bag 62, and a suction cup 1 64 is arranged on one side of the rubber air bag 62, and multiple groups of suction cups 1 64 are arranged at equal intervals, and the suction cup 1 64 is used to adsorb and fix the earphone shell, so that the earphone shell is clamped more firmly to avoid displacement during dispensing.

[0038] Specifically, when in use, the oval-shaped headphone shell is placed on the center position of the workbench 1 through an external manipulator, and then the bidirectional motor 52 fixedly installed inside the groove 51 opened inside the driving workbench 1 is started, and the bidirectional motor 52 drives the screw rods 53 at both ends to rotate, and the two groups of screw rods 53 are respectively rotatably connected with the groove 51 at one end away from the bidirectional motor 52, and the two groups of screw rods 53 are respectively threadedly connected with the two groups of moving blocks 54, and the two groups of moving blocks 54 are slidingly connected with the groove 51, and the two groups of moving blocks 54 respectively drive the top clamps 55 to move in the opposite direction to fix and clamp the two sides of the headphone shell, and the two groups of clamps 55 slide in the corresponding long grooves opened on the top surface of the workbench 1 respectively, so that the suction cup 2 68 included in the stabilizing structure 6 set on one side of the two groups of clamps 55 contacts the side of the headphone shell, and the suction cup 2 68 is made of rubber, so The second suction cup 68 is squeezed by the extrusion force to squeeze the rubber airbag 62, so that the rubber airbag 62 compresses the spring 61, and the internal gas of the squeezed rubber airbag 62 is discharged through the air outlets 63 on both sides, and the compression spring 69 inside the rubber airbag 62 is also compressed, so that there is pressure inside and outside the rubber airbag 62, so that the second suction cup 68 firmly adsorbs the earphone shell, and as the rubber airbag 62 is squeezed, it also pushes one end of the squeezing plate 67, so that the squeezing plate 67 rotates through the rotating rod 66, the surface of the clamping plate 55 is provided with a notch 65, the rotating rod 66 is rotatably connected to the notch 65, and the squeezing plate 67 rotates through the rotating rod 66, because the end of the squeezing plate 67 that is not squeezed is provided with a suction cup 1 64, so the squeezing plate 67 drives the suction cup 1 64 to adsorb and fix the side of the earphone shell in an arc track, so that the earphone shell is clamped more firmly;

[0039] The motor 75 fixedly installed on one side of the extension plate 72 is driven by an external button, and the output end of the motor 75 passes through the rod groove provided on the surface of the extension plate 72. The extension plate 72 is fixed to the frame 2 through the top support rod 71, and the motor 75 drives the gear 1 74 at the output end to rotate, and the gear 1 74 meshes and rotates with the gear ring 73, and the gear ring 73 is slidably connected with the extension plate 72, and the cross-section of the gear ring 73 is trapezoidal, and the protruding part of the gear ring 73 slides in the circular groove provided on the surface of the extension plate 72, so that the gear ring 73 can perform a circular motion in an inverted state, and at the same time, the gear ring 73 slides and meshes with the gear 2 76, and the gear 2 76 will also perform a circular motion driven by the gear ring 73, so that the gear 2 76 drives the rotating rod 77 to rotate. Since a fixed rod 79 is provided at one end of the rotating plate 78 away from the rotating rod 77, the fixed rod The top of 79 is rotatably connected to the first plate 710, the fixed rod 79 is located in the middle of the first plate 710, and the two ends of the fixed rod 79 are rotatably connected to the connecting rod 1 711 and the connecting rod 2 713, and the rotating rod 77 drives one end of the rotating plate 78 to move in a circle, and a trapezoidal plate 715 is embedded between the extension plates 72, and the surface of the trapezoidal plate 715 is provided with a cross-shaped slide groove 1 716 and a cross-shaped slide groove 2 717, so that as the rotating plate 78 drives the fixed rod 79 to move around the intersection center point of the slide groove 1 716 and the slide groove 2 717 in a circular trajectory, the first plate 710 drives the rotating plate 719 connected by the second plate 718 to move in an elliptical trajectory, which can automatically adjust the position of the dispensing head 4 to adapt to earphone shells of different diameters, and realize efficient and accurate dispensing operations on elliptical earphone shells of various sizes;

[0040] like Figure 8As shown, at this time, the dispensing head 4 is driven to move downward by starting the cylinder 3, so that the dispensing head 4 passes through the through hole 720 opened on the rotating plate 719, so that the dispensing head 4 passes through the through hole 720 to squeeze the hemisphere 2 86 set at the bottom end of the inverted eight-shaped pressing plate 84 to both sides, so that the pressing plate 84 rotates an angle through the rotating column 82, and the rotating column 82 is rotatably connected to the connecting groove 81 opened on the surface of the rotating plate 719. The rotating column 82 rotates so that the hemisphere 1 85 set at the top of the pressing plate 84 is close to the outer shell of the dispensing head 4 for clamping, so that the dispensing head 4 is fixed and rotates with the rotating plate 719. Since three groups of through holes 720 are opened on the surface of the rotating plate 719, the three groups of through holes 720 correspond to the outer shells of the head-mounted elliptical headphones with different diameters, and the three groups of through holes 720 are correspondingly provided with the fixing of the pressing plate 84 and the hemisphere. When the position of the dispensing head 4 needs to be changed, the hydraulic rods respectively set on both sides of the rotating plate 719 are driven 811, two groups of hydraulic rods 811 drive the side blocks 810 at the output ends, and the two groups of side blocks 810 drive the long rod 89 connected therebetween to move outwards. A pull ring 88 is sleeved on the surface of the long rod 89, and the long rod 89 drives the pull ring 88 to move, so that the pull ring 88 drives the pull wire 87 at one end to pull, and the pull wire 87 moves in the wire groove provided on the surface of the rotating plate 719, and the other end of the pull wire 87 is wound on the surface of the rotating column 82, and the pull wire 87 is pulled outwards, and the pull of the pull wire 87 drives the rotating column 82 to rotate, and the rotating column 82 rotates so that the pressure plate 84 drives the hemisphere 85 to not clamp the outer shell of the dispensing head 4, so as to facilitate the replacement of the dispensing head 4. Springs 83 are arranged at both ends of the rotating column 82, and the rotating column 82 is not pulled by the pull wire 87 and rotates and is reset by the spring 83, so as to facilitate the fixing of earphone shells of different sizes used by different groups of people, and realizes the smooth movement of the dispensing head 4 along the elliptical trajectory, and ensures the uniformity and fit of the dispensing;

[0041] like Figure 6As shown, the dispensing head 4 is fixed in the through hole 720 of the rotating plate 719. When the dispensing head 4 is parallel to the second slide groove 717, the slider 1 712 slides to the midpoint of the intersection of the first slide groove 716 and the second slide groove 717, and the slider 2 714 slides to the end of the second slide groove 717 close to the dispensing head 4. At this time, the slider 1 712 is parallel to the slider 2 714, thereby driving the fixed dispensing head 4 to draw an ellipse clockwise from the end parallel to the second slide groove 717 to the other end. The connecting rod 1 711 drives the slider 1 712 to slide downward to one end of the slide groove 1 716, and the slider 2 714 slides to the right to one end of the slide groove 2 717. At this time, half of the ellipse is drawn and the dispensing head 4 is located at the other end of the slide groove 2 717. Then, when drawing the other half of the ellipse, the slider 2 714 slides to the end of the slide groove 2 717 close to the dispensing head 4, and the slider 1 712 slides to the slide groove The glue dispensing head 4 draws the other half of the ellipse, and the glue dispensing head 4 returns to the starting position. The circular plate arranged on the top of the cylinder 3 has the same arc groove as the running trajectory of the perforation 720, thereby driving the glue dispensing head 4 to fit around the splicing edge of the elliptical earphone shell, so that the glue dispensing head 4 performs glue dispensing on the splicing edge of the elliptical earphone shell, and a cleaning cotton 9 is arranged on one side of the rotating plate 719. The cleaning cotton 9 first contacts the splicing edge of the elliptical earphone shell as the rotating plate 719 rotates clockwise, and then cleans the dust on the splicing edge of the elliptical earphone shell, thereby improving the glue dispensing quality.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient glue dispensing device for producing earphones, comprising a workbench (1), a frame (2) arranged on the top of the workbench (1), a cylinder (3) arranged on one side of the frame (2), and a glue dispensing head (4) arranged at the output end of the cylinder (3), characterized in that: A clamping structure (5) for fixing the earphone shell is arranged inside the workbench (1), and a rotating fitting structure (7) for the glue dispensing head (4) to dispense glue at the joints of earphone shells of different diameters is arranged between the racks (2); The rotationally fitting structure (7) comprises a support rod (71) fixedly mounted on one side of the frame (2), an extension plate (72) arranged at the bottom end of the support rod (71), and a gear 1 (74) rotatably connected to the extension plate (72) on the side close to the housing. The rotationally fitting structure (7) further comprises a gear ring (73) slidably connected to the extension plate (72) on the side close to the housing. The gear 1 (74) meshes with the gear ring (73). One side of the gear ring (73) is also meshed with a gear 2 (76). The gear 2 (76) rotates in a circular motion under the drive of the meshing gear ring (73). The first plate (710) is provided with a first connecting rod (79) on one side of the second gear (76), a rotating plate (78) on one side of the rotating plate (78), a fixed rod (79) on the side of the rotating plate (78) away from the rotating rod (77), a top end of the fixed rod (79) is rotatably connected to the first plate (710), the fixed rod (79) is located in the middle of the first plate (710), the fixed rod (79) drives the first plate (710) to move in a circular trajectory around the center point of the extension plate (72), and both ends of the first plate (710) are rotatably connected to the first connecting rod (79). The connecting rod (711) and the connecting rod (713) are connected to each other, and the connecting rod (711) and the connecting rod (713) are respectively provided with a slider (712) and a slider (714) at one end. The rotating fitting structure (7) also includes a trapezoidal plate (715) embedded in the surface of the extension plate (72). The surface of the trapezoidal plate (715) is provided with a slide groove (716) and a slide groove (717). The slide groove (716) and the slide groove (717) are in a cross shape. The slider (712) and the slider (714) are respectively in the slide groove (716) and the slide groove (717). The first plate (710) slides inside the second plate (717), the cross-sections of the slider 1 (712), the slider 2 (714), the slide groove 1 (716) and the slide groove 2 (717) are T-shaped, the end of the first plate (710) away from the connecting rod 1 (711) is provided with a second plate (718), and the end of the second plate (718) is provided with a rotating plate (719), and the surface of the rotating plate (719) is provided with perforations (720), and the perforations (720) are provided with three groups, and the three groups of perforations (720) correspond to the splicing points of the head-mounted elliptical headphone shells with different diameters. A fixing structure (8) for clamping the dispensing head (4) is arranged on both sides of the through hole (720), and the fixing structure (8) includes a connecting groove (81) provided on the surface of the rotating plate (719), a pressing plate (84) rotatably connected inside the connecting groove (81), and a hemisphere 1 (85) and a hemisphere 2 (86) arranged at both ends of the pressing plate (84); The clamping structure (5) comprises a groove (51) formed on the surface of the workbench (1), a bidirectional motor (52) being fixedly mounted inside the groove (51), screw rods (53) being arranged at both ends of the bidirectional motor (52), two groups of screw rods (53) being symmetrically distributed, one end of each of the two groups of screw rods (53) being away from the bidirectional motor (52) being rotatably connected to the groove (51), moving blocks (54) being rotatably connected to the surfaces of the two groups of screw rods (53), the bottom ends of the two groups of moving blocks (54) being slidably connected to the groove (51), the top ends of the two groups of moving blocks (54) being arranged with clamping plates (55), the two groups of clamping plates (55) being movable in opposite directions, and the two groups of clamping plates (55) being slidable in the long groove formed on the top surface of the workbench (1); A stabilizing structure (6) is provided on one side of the clamping plate (55), the stabilizing structure (6) comprising a notch (65) provided on the surface of the clamping plate (55), a rotating rod (66) being rotatably connected inside the notch (65), and extrusion plates (67) are provided on both sides of the rotating rod (66), one end of the extrusion plate (67) is inclined, and a second suction cup (68) is provided on the other end of the extrusion plate (67); A spring (61) is further provided on the same side of the clamping plate (55) and the extrusion plate (67); a rubber airbag (62) is provided on the side of the spring (61) away from the clamping plate (55); the rubber airbag (62) is arc-shaped; air outlets (63) are connected to both sides of the rubber airbag (62); a plurality of air outlets (63) are provided; a compression spring (69) is symmetrically provided inside the rubber airbag (62); a suction cup (64) is provided on one side of the rubber airbag (62); a plurality of suction cups (64) are provided at equal intervals; the suction cup (64) is used to absorb and fix the earphone housing.

2. The high-efficiency glue dispensing equipment for earphone production according to claim 1, characterized in that: A motor (75) is fixedly mounted on one side of the extension plate (72), and an output end of the motor (75) passes through a rod groove provided on the surface of the extension plate (72), and the output end of the motor (75) is connected to gear 1 (74).

3. The high-efficiency glue dispensing equipment for earphone production according to claim 1 is characterized by: The cross section of the gear ring (73) is trapezoidal in shape, and the protruding portion of the gear ring (73) slides in a circular groove provided on the surface of the extension plate (72).

4. The high-efficiency glue dispensing equipment for earphone production according to claim 1, characterized in that: A rotating column (82) is rotatably connected inside the connecting groove (81), the rotating column (82) is connected to the middle of the pressing plate (84), and springs (83) are provided at both ends of the rotating column (82), one end of the spring (83) is connected to the connecting groove (81).

5. The high-efficiency glue dispensing equipment for earphone production according to claim 4 is characterized by: A pull wire (87) is connected to the surface of the rotating column (82), and the pull wire (87) is wound around the surface of the rotating column (82) for several turns. A wire groove is provided on the surface of the rotating plate (719), and when the pull wire (87) moves in the wire groove, a pull ring (88) is provided at one end of the pull wire (87) protruding from the rotating plate (719).

6. The high-efficiency glue dispensing equipment for earphone production according to claim 5, characterized in that: Hydraulic rods (811) are arranged on both sides of the rotating plate (719), and two groups of hydraulic rods (811) are symmetrically arranged. The output ends of the two groups of hydraulic rods (811) are respectively provided with side blocks (810), and a long rod (89) is arranged between the two groups of side blocks (810). The pull ring (88) is passed through the surface of the long rod (89).

7. The high-efficiency glue dispensing equipment for earphone production according to claim 1, characterized in that: Cleaning cotton (9) is arranged on one side of the rotating plate (719), and three groups of cleaning cotton (9) are arranged. The three groups of cleaning cotton (9) are located on the side of the rotating plate (719) rotating clockwise around the extension plate (72), and the three groups of cleaning cotton (9) correspond to the positions of the perforations (720). The cleaning cotton (9) is used to remove dust from the glue joints of the earphone shell.

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