An automatic pad printing line for headsets

Abstract

The present invention discloses an automatic pad printing line for headsets, and relates to the technical field of headset processing equipment. The pad printing line of the present invention comprises: a support frame, a workpiece moving plate is arranged on the top of the support frame, a first conveyor belt is also installed on the top of the support frame, which is used to drive the workpiece moving plate to move to different processing positions, and a second conveyor belt is installed on the inner side of the support frame, which is used to transport the used workpiece moving plate back to the initial position. The present invention enables the pad printing line to efficiently pad print letters on the headset when it is in use through the cooperation of the support frame, the conveyor belt, the first station, the first plasma treatment station and the second plasma treatment station, and enables the displacement mechanism to move the workpiece fixing fixture placed on the top of the positioning base with the headset to be pad printed, thereby facilitating the processing of the headset.

Description

Technical Field

[0001] The invention belongs to the technical field of earphone processing equipment, and in particular relates to an automatic pad printing line for head-mounted telephone earphones. Background Art

[0002] Earphones are a pair of conversion units that receive electrical signals from a media player or receiver and convert them into audible sound waves using speakers close to the ears. Earphones can be divided into headphones and in-ear headphones according to different wearing methods. Headphones need to go through injection molding, assembly, pad printing of logo letters and other processes during processing. Existing pad printing letter equipment is slow in efficiency for pad printing letters on headphones when in use, and is too close to the ink, which will produce a pungent odor. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic pad printing line for headsets to solve the existing problem that the existing pad printing letter equipment is slow in printing letters on the headsets when in use.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The present invention is an automatic pad printing line for a headset, the pad printing line comprising:

[0006] A support frame, wherein a workpiece moving plate is arranged on the top of the support frame, and a first conveyor belt is also installed on the top of the support frame for driving the workpiece moving plate to move to different processing positions, and a second conveyor belt is installed on the inner side of the support frame for conveying the used workpiece moving plate back to the initial position;

[0007] A support shell fixed at both ends of the support frame, wherein an adjustment mechanism and a transmission mechanism are installed inside the support shell, wherein the adjustment mechanism is used to change the height of the transmission mechanism, and the transmission mechanism is used to drive the workpiece moving plate to move;

[0008] The transmission mechanism includes a rotating drive motor, a positioning frame, a rotating shaft and a pulley, both sides of one end of the positioning frame are rotatably connected to pulleys, and the two pulleys are transmitted through a flat belt, a rotating shaft is rotatably connected to the inside of one side of the positioning frame and at a position corresponding to one of the pulleys, and the rotating shaft is connected to one of the pulleys, a rotating drive motor is fixed to the inner side of the positioning frame, and the output end of the rotating drive motor is connected to the rotating shaft through a transmission chain.

[0009] Furthermore, it also includes a first plasma processing station arranged on both sides of one end of the support frame, for performing plasma processing on the part of the headset that needs to be pad printed, wherein a plasma processing machine and a nozzle are installed inside the first plasma processing station, and the nozzle is fixed to the outlet pipe of the plasma processing machine;

[0010] A pad printing device is arranged on one side of a support frame, and the pad printing device consists of a first pad printing station, a second pad printing station and a third pad printing station. The second pad printing station is located between the first pad printing station and the third pad printing station, and the first pad printing station is located at one end close to the first plasma processing station. A displacement mechanism is installed on one side of the support frame and at a position corresponding to the pad printing device, which is used to move a workpiece fixing fixture with headphones that need to be processed.

[0011] Furthermore, a second plasma processing station is fixed on one side of the support frame and located between the second pad printing station and the third pad printing station. A plasma processor and a nozzle are also installed inside the second plasma processing station. The nozzle is fixed to the outlet pipe of the plasma processor.

[0012] Furthermore, it also includes a first station, a second station and a third station arranged on the other side of the support frame, and the second station is located between the first station and the third station, the first station is located at one end close to the first plasma processing station, and a robotic arm is fixed inside the first station, the second station and the third station.

[0013] Furthermore, a workpiece fixing fixture is installed on the top of the workpiece moving plate, a positioning pin is fixed on the bottom of the workpiece fixing fixture, an assembly hole is opened inside the workpiece moving plate and at a position corresponding to the positioning pin, and the workpiece fixing fixture and the workpiece moving plate are slidably connected through the cooperation of the positioning pin and the assembly hole.

[0014] Furthermore, a lifting mechanism for driving the workpiece moving plate to lift and lower is also installed on the inner side of the top of the support frame, and the lifting mechanism includes a lifting top plate, a positioning and fixing plate, a limiting column and a first lifting and barless cylinder. The two ends of the positioning and fixing plate are fixed to the support frame, and the four end corners of the positioning and fixing plate are internally slidingly connected to the limiting column. The lifting top plate is fixed on the top of the limiting column, and the first lifting and barless cylinder is fixed on the bottom of the positioning and fixing plate and on the inner side of the limiting column, and the output end of the first lifting and barless cylinder is connected to the lifting top plate.

[0015] Furthermore, a guide column is fixed on the top of the lifting top plate, a circular hole is opened inside the workpiece moving plate and at a position corresponding to the guide column, and the lifting top plate and the workpiece moving plate are slidably connected through the guide column and the circular hole.

[0016] Furthermore, the adjustment mechanism includes a fixed frame and a second lifting rodless cylinder, the fixed frame is fixed to the support shell, and the second lifting rodless cylinder is fixed on both sides of the bottom of the fixed frame. The second lifting rodless cylinder is used to drive the positioning frame to rise and fall.

[0017] Furthermore, the displacement mechanism includes a connecting plate, a support base, a mobile drive motor, a positioning base and a transmission threaded rod, one end of the connecting plate is fixed to the support frame, the top of the connecting plate is fixed with a support base, one end of the support base is fixed with a mobile drive motor, the output end of the mobile drive motor is connected to a transmission threaded rod, the outer side of the transmission threaded rod is threadedly connected to a positioning base, a second magnet is also provided on the top of the positioning base, and a first magnet is also provided on the bottom of both sides of the workpiece fixing fixture, and the second magnet is magnetically adsorbed to the first magnet.

[0018] Furthermore, a positioning column is fixed to the top of the positioning base away from one end of the support frame, and connecting holes are provided at the bottoms of both sides of the workpiece fixing fixture, and the workpiece fixing fixture and the positioning column are slidably connected through the connecting holes.

[0019] The present invention has the following beneficial effects:

[0020] 1. The present invention enables the pad printing line to efficiently perform letter pad printing on headphones during use through the coordination of the support frame, the conveyor belt, the first station, the first plasma processing station and the second plasma processing station.

[0021] 2. The present invention cooperates with the lifting top plate, the positioning fixing plate and the limiting column so that when the pad printing line is processing headphones, the workpiece moving plate used to place the workpiece fixing fixture will not continue to move, so that the workpiece moving plate can drive the headphones on the workpiece fixing fixture that need to be processed to be fully processed.

[0022] 3. The present invention cooperates with the lifting connection block and the second lifting rodless cylinder so that the lifting of the lifting connection block can drive the transmission mechanism to correspond to the first conveyor belt or the second conveyor belt, thereby allowing the workpiece moving plate moved by the first conveyor belt to return to its initial position through the second conveyor belt.

[0023] 4. The present invention cooperates with the support base, the mobile drive motor, the positioning base and the transmission threaded rod so that the displacement mechanism can move the workpiece fixing fixture placed on the top of the positioning base and equipped with the headphones to be pad printed, thereby facilitating the processing of the headphones. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a structural schematic diagram of an automatic pad printing line for a headset of the present invention;

[0026] Figure 2 It is an overall rear view of an automatic pad printing line for a headset for business use of the present invention;

[0027] Figure 3 A schematic diagram of a lifting mechanism of an automatic pad printing line for a headset for telephone service according to the present invention;

[0028] Figure 4 It is a schematic diagram of the connection structure of a limit column and a positioning fixing plate of an automatic pad printing line of a headset for a telephone service according to the present invention;

[0029] Figure 5 This is a schematic diagram of the internal structure of an automatic pad printing line support shell of a headset for telephone service according to the present invention;

[0030] Figure 6 It is a structural schematic diagram of an automatic pad printing line adjustment mechanism of a headset for telephone service of the present invention;

[0031] Figure 7 It is a structural schematic diagram of an automatic pad printing line transmission mechanism of a headset for telephone service of the present invention;

[0032] Figure 8 It is a structural schematic diagram of an automatic pad printing line displacement mechanism of a headset for telephone service of the present invention;

[0033] Fig. 9 This is a schematic diagram of the connection structure between a head-mounted telephone headset automatic pad printing line support base and a connection plate of the present invention;

[0034] Fig.10 The present invention discloses a motor forward and reverse rotation circuit diagram of an automatic pad printing line for a headset for telephone service.

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] 1. Support shell; 2. Support frame; 3. First station; 4. Second station; 5. Third station; 6. First plasma treatment station; 7. Second plasma treatment station; 8. First pad printing station; 9. Second pad printing station; 10. Third pad printing station; 11. Workpiece moving plate; 12. Workpiece fixing fixture; 13. Lifting top plate; 14. Positioning fixing plate; 15. Limiting column; 16. First lifting barless cylinder; 17. Limiting pulley; 18. Fixed frame; 19. Second lifting barless cylinder; 20. First magnet; 21. Second magnet; 22. Rotating drive motor; 23. Rotating shaft; 24. Connecting hole; 25. Positioning pin; 26. Connecting plate; 27. Support base; 28. Moving drive motor; 29. ​​Positioning base; 30. Transmission threaded rod. DETAILED DESCRIPTION

[0037] 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.

[0038] See also Figure 1-10 As shown, the present invention is an automatic pad printing line for headsets, the pad printing line comprising:

[0039] A support frame 2, a workpiece moving plate 11 is arranged on the top of the support frame 2, a workpiece fixing fixture 12 is installed on the top of the workpiece moving plate 11 for fixing a plurality of headphones, a first conveyor belt is also installed on the top of the support frame 2 for driving the workpiece moving plate 11 to move to different processing positions, and a second conveyor belt is installed on the inner side of the support frame 2 for conveying the used workpiece moving plate 11 back to the initial position;

[0040] The conveyor belt is a mature technology. It is a structure used to transport the workpieces that need to be moved. It can be realized by the cooperation of motors, rotating rods, transmission belts and other structures.

[0041] The support shell 1 is fixed at both ends of the support frame 2, and the top of the support shell 1 is used to place the unprocessed headphones. The support shell 1 is internally installed with an adjustment mechanism and a transmission mechanism. The adjustment mechanism is used to change the height of the transmission mechanism, and the transmission mechanism is used to drive the workpiece moving plate 11 to move;

[0042] The first plasma processing station 6 provided on both sides of one end of the support frame 2 is used to perform plasma processing on the headphone where pad printing is required. A plasma processing machine and a nozzle are installed inside the first plasma processing station 6. The nozzle is fixed to the outlet pipe of the plasma processing machine and is used to perform plasma processing on the pad printing part of the headphone with the flame emitted by the plasma processing machine.

[0043] A pad printing device is arranged on one side of the support frame 2, the pad printing device is composed of at least a first pad printing station 8, a second pad printing station 9 and a third pad printing station 10, the second pad printing station 9 is located between the first pad printing station 8 and the third pad printing station 10, and the first pad printing station 8 is located at one end close to the first plasma processing station 6, wherein the first pad printing station 8 and the second pad printing station 9 are used to pad print the same logo on both ends of the headphones that need to be pad printed, and the third pad printing station 10 is used to pad print another logo on the headphones that need to be pad printed, and a displacement mechanism is installed on one side of the support frame 2 and at a position corresponding to the pad printing device, which is used to move the workpiece with the headphones that need to be processed;

[0044] A second plasma processing station 7 is fixed on one side of the support frame 2 and located between the second pad printing station 9 and the third pad printing station 10. A plasma processing machine and a nozzle are also installed inside the second plasma processing station 7. The nozzle is fixed to the outlet pipe of the plasma processing machine and is used to perform plasma processing on the pad printing part of the headset with the flame emitted by the plasma processing machine.

[0045] The first station 3, the second station 4 and the third station 5 are arranged on the other side of the support frame 2, and the second station 4 is located between the first station 3 and the third station 5, and the first station 3 is located at one end close to the first plasma treatment station 6, and a mechanical arm is fixed inside the first station 3, the second station 4 and the third station 5, and the mechanical arm is a six-axis rotation, which is used to place a workpiece fixing fixture 12 on the top of the workpiece moving plate 11 for grabbing, and then flip the grabbed workpiece fixing fixture 12 ninety degrees, and then place the workpiece fixing fixture 12 flipped ninety degrees on the displacement mechanism;

[0046] The robotic arm is an existing technical equipment. It is the most widely used automated mechanical device in the field of robotics technology. It can be seen in industrial manufacturing, medical treatment, entertainment services, military, semiconductor manufacturing, and space exploration.

[0047] See also Figure 1-4 As shown, specifically, the four end corners of the workpiece moving plate 11 are internally rotatably connected to the limiting pulley 17, and the moving position of the workpiece moving plate 11 is limited by the limiting pulley 17, and the movement of the workpiece moving plate 11 can be prevented from being offset;

[0048] Preferably, a positioning pin 25 is fixed to the bottom of the workpiece fixing fixture 12, and an assembly hole is opened inside the workpiece moving plate 11 at a position corresponding to the positioning pin 25. The workpiece fixing fixture 12 and the workpiece moving plate 11 are slidably connected through the cooperation of the positioning pin 25 and the assembly hole, so that the workpiece fixing fixture 12 can be easily placed on the top of the workpiece moving plate 11 and can prevent the workpiece fixing fixture 12 from sliding at will;

[0049] A lifting mechanism for driving the workpiece moving plate 11 to lift is also installed on the inner side of the top of the support frame 2. The lifting mechanism includes a lifting top plate 13, a positioning and fixing plate 14, a limiting column 15 and a first lifting rodless cylinder 16. The two ends of the positioning and fixing plate 14 are fixed to the support frame 2. The four end corners of the positioning and fixing plate 14 are internally slidably connected to the limiting column 15. The top of the limiting column 15 is fixed with a lifting top plate 13, so that the lifting top plate 13 can be lifted and lowered more stably through the sliding connection between the lifting top plate 13 and the limiting column 15. The top of the lifting top plate 13 is fixed with a guide A circular hole is provided inside the workpiece moving plate 11 and at a position corresponding to the guide column, and the lifting top plate 13 is slidably connected with the workpiece moving plate 11 through the guide column and the circular hole, so that the workpiece moving plate 11 will not move when the lifting top plate 13 drives the workpiece moving plate 11 to be lifted; a first lifting rodless cylinder 16 is fixed to the bottom of the positioning fixing plate 14 and located on the inner side of the limiting column 15, and the output end of the first lifting rodless cylinder 16 is connected to the lifting top plate 13, so that the lifting top plate 13 can be driven to be lifted and lowered by the first lifting rodless cylinder 16;

[0050] Specifically, there are multiple lifting mechanisms, and the number of the lifting mechanisms can be determined according to the number of workstations that need to be processed.

[0051] See also Figure 5-7 As shown, the adjustment mechanism includes a fixing frame 18 and a second lifting rodless cylinder 19. The fixing frame 18 is fixed to the support shell 1. The second lifting rodless cylinder 19 is fixed on both sides of the bottom of the fixing frame 18. The second lifting rodless cylinder 19 is used to drive the positioning frame to move up and down;

[0052] The transmission mechanism includes a rotating drive motor 22, a positioning frame, a rotating shaft 23 and a pulley. One end of the positioning frame is fixed to the second lifting rodless cylinder 19, and both sides of one end of the positioning frame are rotatably connected to pulleys, and the two pulleys are transmitted through a flat belt. The internal part of one side of the positioning frame and the position corresponding to one of the pulleys is rotatably connected to the rotating shaft 23, and the rotating shaft 23 is connected to one of the pulleys, so that one of the pulleys can be driven to rotate by the rotation of the rotating shaft 23, and then both pulleys can be driven to rotate. A rotating drive motor 22 is fixed to the inner side of the positioning frame, and the output end of the rotating drive motor 22 is connected to the rotating shaft 23 through a transmission chain, so that the rotating shaft 23 can be stably driven to rotate after being energized, so that the workpiece moving plate 11 transmitted by the first conveyor belt can be transported to the second conveyor belt.

[0053] See also Figure 9-10 As shown, the displacement mechanism includes a connecting plate 26, a support base 27, a mobile drive motor 28, a positioning base 29 and a transmission threaded rod 30. One end of the connecting plate 26 is fixed to the support frame 2, the support base 27 is fixed to the top of the connecting plate 26, the mobile drive motor 28 is fixed to one end of the support base 27, the output end of the mobile drive motor 28 is connected to the transmission threaded rod 30, the outer side of the transmission threaded rod 30 is threadedly connected to the positioning base 29, and the end of the positioning base 29 away from the support frame 2 is in contact with the first pad printing station 8, and the top of the positioning base 29 is away from the support frame 2. A positioning column is fixed to the top of one end of the frame 2, and a second magnet 21 is also provided on the top of the positioning base 29. First magnets 20 are also provided on the bottoms of both sides of the workpiece fixing fixture 12, and the second magnets 21 are magnetically adsorbed to the first magnets 20. Connecting holes 24 are provided at the bottoms of both sides of the workpiece fixing fixture 12. The workpiece fixing fixture 12 is slidably connected to the positioning column through the connecting holes 24, so that the headphones on the workpiece fixing fixture 12 that need to be processed by the first pad printing station 8 or the second pad printing station 9 can be moved more stably.

[0054] A specific application of this embodiment is: when processing, the headset to be processed is first mounted on the outside of the workpiece fixing fixture 12, and then the workpiece fixing fixture 12 is placed on the top of the workpiece moving plate 11 through the sliding connection between the positioning pin 25 and the workpiece moving plate 11, and then the workpiece moving plate 11 with the workpiece fixing fixture 12 is placed on the inner side of the top end of the support frame 2, and the workpiece moving plate 11 is driven to move by the rotation of the conveyor belt;

[0055] When the workpiece moving plate 11 moves to the position of the first plasma processing station 6, the corresponding lifting mechanism works, so that the first lifting barless cylinder 16 is energized and drives the lifting top plate 13 to move up and down. At the same time, the lifting top plate 13 is limited by the sliding connection between the limiting column 15 and the positioning fixing plate 14, so that the lifting top plate 13 can be more stable when lifting. Then, the lifting top plate 13 drives the workpiece moving plate 11 to move up and down, and the guide column is connected with the workpiece moving plate 11 through a sliding connection, so that the workpiece moving plate 11 after lifting will not slide on the top of the lifting top plate 13.

[0056] Then, after the plasma processor inside the first plasma processing station 6 works, the part of the headset that needs to be pad printed is plasma treated through the nozzle. After the plasma treatment is completed, the first lifting barless cylinder 16 in the corresponding lifting mechanism is reversed to drive the workpiece moving plate 11 to descend through the lifting top plate 13. The workpiece moving plate 11 descends and drives the workpiece fixing fixture 12 to descend, so that the workpiece moving plate 11 can be driven by the first conveyor belt to move to the next processing position;

[0057] After the workpiece moving plate 11 moves to the position of the first station 3 through the first conveyor belt, the workpiece moving plate 11 is lifted up by the corresponding lifting mechanism, and then the workpiece fixing fixture 12 on the top of the workpiece moving plate 11 is clamped by the six-axis robot arm inside the first station 3, and then the grasped workpiece fixing fixture 12 is turned over ninety degrees, and the turned ninety-degree workpiece fixing fixture 12 is placed on the top of the positioning base 29 in the displacement mechanism corresponding to the first pad printing station 8, and the position of the workpiece fixing fixture 12 is limited by the sliding connection between the workpiece fixing fixture 12 and the positioning column, and then the transmission threaded rod 30 is driven to rotate by the power of the mobile drive motor 28, and then The rotation of the transmission threaded rod 30 drives the threadedly connected positioning base 29 to move, and the movement of the positioning base 29 drives the workpiece fixing fixture 12 to move, so that one end of the headphones installed on the workpiece fixing fixture 12 is pad printed through the first pad printing station 8, and then the workpiece fixing fixture 12 with the headphones printed once is transported back to the initial position through the reverse rotation of the mobile driving motor 28, and the workpiece fixing fixture 12 is flipped to the original angle horizontal to the ground through the mechanical arm inside the first station 3, and then the workpiece fixing fixture 12 is placed on the top of the workpiece moving plate 11, and then the workpiece moving plate 11 is driven to descend and contact the first conveyor belt through the corresponding lifting mechanism;

[0058] After the workpiece moving plate 11 is driven by the first conveyor belt to move to the position corresponding to the second pad printing station 9, the workpiece moving plate 11 is driven up by the corresponding lifting device, and the workpiece fixing fixture 12 is clamped by the mechanical arm inside the second station 4, and the clamped workpiece fixing fixture 12 is placed on the top of the positioning base 29 in the displacement mechanism corresponding to the second pad printing station 9, and the above steps are repeated to pad print the other side of the headphones that have been pad printed once, and after the workpiece fixing fixture 12 is turned over to the original angle horizontal to the ground by the mechanical arm inside the second station 4, the workpiece fixing fixture 12 is placed on the top of the workpiece moving plate 11, and then the workpiece moving plate 11 is driven down by the corresponding lifting mechanism to contact the first conveyor belt;

[0059] After the workpiece moving plate 11 is driven by the first conveyor belt to move to the position corresponding to the second plasma processing station 7, the workpiece moving plate 11 is driven to rise by the corresponding lifting mechanism, and then the plasma flame machine inside the second plasma processing station 7 works and heats another part of the headset that needs to be printed through the nozzle. After the heating is completed, the workpiece moving plate 11 is driven to descend by the corresponding lifting mechanism and contact the first conveyor belt;

[0060] The first conveyor belt moves the workpiece moving plate 11 to the position corresponding to the third pad printing station 10, and the workpiece moving plate 11 is driven to rise by the corresponding lifting mechanism, and then the workpiece fixing fixture 12 is clamped by the six-axis robot arm inside the third station 5, and the clamped workpiece fixing fixture 12 is placed on the top of the positioning base 29 in the displacement mechanism corresponding to the third pad printing station 10, and the above steps are repeated to perform pad printing on another headphone that needs to be pad printed, and after the workpiece fixing fixture 12 is turned to the original angle horizontal to the ground by the robot arm inside the third station 5, the workpiece fixing fixture 12 is placed on the top of the workpiece moving plate 11, and then the workpiece moving plate 11 is driven to descend by the corresponding lifting mechanism to contact the first conveyor belt;

[0061] Then, the workpiece fixing fixture 12 with the processed headphones is transported to the end position through the first conveyor belt, and then the workpiece fixing fixture 12 with the processed headphones is manually removed, so that the first conveyor belt transports the workpiece moving plate 11 into the transmission mechanism inside the supporting shell 1, so that the rotating drive motor 22 drives the rotating shaft 23 to rotate through the transmission chain, and the rotation of the rotating shaft 23 drives one of the pulleys to rotate, thereby driving the flat belt to rotate, and the flat belt drives the workpiece moving plate 11 to move, and then it is lifted and lowered by the second lifting rodless cylinder 19 and driven to descend by the positioning frame, so that the transmission mechanism corresponds to the second conveyor belt, thereby transporting the workpiece moving plate 11 on the top of the flat belt to the top of the second conveyor belt, and then the workpiece moving plate 11 is moved to the initial position through the second conveyor belt.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0063] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic pad printing line for headsets, characterized by: Pad printing line includes: A support frame (2), wherein a workpiece moving plate (11) is arranged on the top of the support frame (2), and a first conveyor belt is also installed on the top of the support frame (2) for driving the workpiece moving plate (11) to move to different processing positions, and a second conveyor belt is installed on the inner side of the support frame (2) for conveying the used workpiece moving plate (11) back to the initial position; A support shell (1) fixed at both ends of the support frame (2), wherein an adjustment mechanism and a transmission mechanism are installed inside the support shell (1), wherein the adjustment mechanism is used to change the height of the transmission mechanism, and the transmission mechanism is used to drive the workpiece moving plate (11) to move; The transmission mechanism comprises a rotation drive motor (22), a positioning frame, a rotating shaft (23) and a pulley, both sides of one end of the positioning frame are rotatably connected to pulleys, and the two pulleys are driven by a flat belt, a rotation shaft (23) is rotatably connected to the inside of one side of the positioning frame and at a position corresponding to one of the pulleys, and the rotating shaft (23) is connected to one of the pulleys, a rotation drive motor (22) is fixed on the inner side of the positioning frame, and the output end of the rotation drive motor (22) is connected to the rotating shaft (23) through a transmission chain; It also includes a first plasma processing station (6) arranged on both sides of one end of the support frame (2), which is used to perform plasma processing on the part of the headset that needs to be pad printed, and a plasma processing machine and a nozzle are installed inside the first plasma processing station (6), and the nozzle is fixed to the outlet pipe of the plasma processing machine; A pad printing device is arranged on one side of a support frame (2), the pad printing device is composed of a first pad printing station (8), a second pad printing station (9) and a third pad printing station (10), the second pad printing station (9) is located between the first pad printing station (8) and the third pad printing station (10), and the first pad printing station (8) is located at one end close to the first plasma treatment station (6), and a displacement mechanism is installed on one side of the support frame (2) and at a position corresponding to the pad printing device, for moving a workpiece fixing fixture (12) with headphones to be processed; The adjustment mechanism comprises a fixing frame (18) and a second lifting rodless cylinder (19); the fixing frame (18) is fixed to the support shell (1); the second lifting rodless cylinder (19) is fixed on both sides of the bottom of the fixing frame (18); the second lifting rodless cylinder (19) is used to drive the positioning frame to move up and down.

2. The automatic pad printing line for headsets according to claim 1, characterized in that: A second plasma processing station (7) is fixed on one side of the support frame (2) and located between the second pad printing station (9) and the third pad printing station (10). A plasma processing machine and a nozzle are also installed inside the second plasma processing station (7). The nozzle is fixed to the outlet pipe of the plasma processing machine.

3. The automatic pad printing line for headsets according to claim 1, characterized in that: The invention also comprises a first station (3), a second station (4) and a third station (5) which are arranged on the other side of the support frame (2), wherein the second station (4) is located between the first station (3) and the third station (5), the first station (3) is located at one end close to the first plasma treatment station (6), and mechanical arms are fixed inside the first station (3), the second station (4) and the third station (5).

4. The automatic pad printing line for headsets according to claim 1, characterized in that: The top of the workpiece moving plate (11) is equipped with a workpiece fixing fixture (12), the bottom of the workpiece fixing fixture (12) is fixed with a positioning pin (25), an assembly hole is provided inside the workpiece moving plate (11) and at a position corresponding to the positioning pin (25), and the workpiece fixing fixture (12) and the workpiece moving plate (11) are slidably connected through the cooperation of the positioning pin (25) and the assembly hole.

5. The automatic pad printing line for headsets according to claim 1, characterized in that: A lifting mechanism for driving the workpiece moving plate (11) to lift and lower is also installed on the inner side of the top of the support frame (2), and the lifting mechanism includes a lifting top plate (13), a positioning and fixing plate (14), a limiting column (15) and a first lifting rodless cylinder (16). The two ends of the positioning and fixing plate (14) are fixed to the support frame (2), and the four end corners of the positioning and fixing plate (14) are internally slidably connected to the limiting column (15). The top of the limiting column (15) is fixed with the lifting top plate (13), and the bottom of the positioning and fixing plate (14) and located on the inner side of the limiting column (15) is fixed with the first lifting rodless cylinder (16), and the output end of the first lifting rodless cylinder (16) is connected to the lifting top plate (13).

6. The automatic pad printing line for headsets according to claim 5, characterized in that: A guide column is fixed on the top of the lifting top plate (13), a circular hole is opened inside the workpiece moving plate (11) at a position corresponding to the guide column, and the lifting top plate (13) and the workpiece moving plate (11) are slidably connected via the guide column and the circular hole.

7. The automatic pad printing line for headsets according to claim 4, characterized in that: The displacement mechanism comprises a connecting plate (26), a support base (27), a mobile drive motor (28), a positioning base (29) and a transmission threaded rod (30); one end of the connecting plate (26) is fixed to the support frame (2); the top of the connecting plate (26) is fixed with the support base (27); one end of the support base (27) is fixed with the mobile drive motor (28); the output end of the mobile drive motor (28) is connected with the transmission threaded rod (30); the outer side of the transmission threaded rod (30) is threadedly connected with the positioning base (29); the top of the positioning base (29) is also provided with a second magnet (21); the bottoms of both sides of the workpiece fixing fixture (12) are also provided with first magnets (20); and the second magnets (21) are magnetically adsorbed to the first magnets (20).

8. The automatic pad printing line for headsets according to claim 7, characterized in that: A positioning column is fixed to the top of the positioning base (29) away from the top of one end of the support frame (2), and connecting holes (24) are provided at the bottom of both sides of the workpiece fixing fixture (12), and the workpiece fixing fixture (12) and the positioning column are slidably connected through the connecting holes (24).

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