A dry coating system for automobile plastic parts

Abstract

The present application relates to the technical fields of automobile accessory coating, in particular to a dry coating system for automobile plastic accessories, which comprises two horizontal rods and a mechanical arm, one end of the mechanical arm is fixedly connected with a bidirectional spraying pipe, the upper ends of the two horizontal rods are movably connected with a plurality of connecting plates, the upper ends of the connecting plates are movably connected with a turntable, a plurality of connecting frames are installed on the outer side of the turntable at equal intervals through a screw rod, and an adjustable pushing mechanism is arranged on the inner side of the connecting frame; when the adjustable pushing mechanism is in contact with the T-shaped toothed rod, the automobile plastic accessory clamped between the lower clamping plate and the upper clamping mechanism will start to rotate; when the adjustable pushing mechanism is not in contact with the T-shaped toothed rod, the T-shaped toothed rod will return to the initial position and drive the rotating shaft to rotate, so that the automobile plastic accessory rotates in the opposite direction, the automobile plastic accessory swings back and forth during the spraying process, the uniformity of the spraying is ensured, and the position of the adjustable pushing mechanism is adjusted.

Description

Technical Field

[0001] This invention relates to the field of automotive parts coating technology, specifically a dry coating system for automotive plastic parts. Background Technology

[0002] For example, Chinese patent CN116441090A discloses a plastic parts spraying device for simultaneous spraying of multiple components, including a receiving seat, a support column set at the top center of the receiving seat, multiple mounting frames arranged in a ring on the top outer wall of the support column, two symmetrically distributed spraying frames installed at the bottom of the mounting frames, spraying components arranged at equal intervals on the spraying frames, a feeding component set at the top of the support column and connected to the spraying components, a pushing component set on the spraying frames, a movable component connected to the pushing component, and multiple rotating shafts arranged in a ring on the receiving seat, with a turntable installed on the rotating shaft.

[0003] However, the above solution still has the following shortcomings: The above technology drives the rotating shaft to rotate through the rotating component, which in turn drives the processing table on the turntable to rotate, so that the spraying component can rotate and spray the plastic parts. During the spraying process, the spraying component will swing up and down, so that the paint sprayed by the spraying component can be evenly sprayed onto the plastic parts to achieve full spraying. However, when it is necessary to spray a part of the part and not another part, the above patent cannot switch the nozzle back and forth between full spraying or partial spraying of the part according to the spraying requirements of the part. It cannot customize the adjustment of the spraying area of ​​the part according to the situation. Therefore, we have introduced a dry coating system for automotive plastic parts. Summary of the Invention

[0004] The purpose of this invention is to provide a dry coating system for automotive plastic parts to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A dry coating system for automotive plastic parts includes two crossbars and a robotic arm. One end of the robotic arm is fixedly connected to a bidirectional spray pipe. Several connecting plates are movably connected to the upper ends of the two crossbars. A turntable is movably connected to the upper end of each connecting plate. Several connecting frames are installed at equal intervals on the outer side of the turntable via screws. An adjustable pushing mechanism is provided inside each connecting frame. The adjustable pushing mechanism is in contact with a T-shaped toothed rod. An arc-shaped toothed plate is fixedly connected to the upper end of each connecting plate. The adjustable pushing mechanism is connected to the arc-shaped toothed plate. The T-shaped toothed rod is movably connected to a support plate. The support plate is fixedly connected to the inner side of the connecting frames.

[0007] A rotating shaft is movably connected to the inner side of the connecting frame. Several connecting tooth grooves are opened on the outer side of the rotating shaft. The T-shaped toothed rod meshes with the connecting tooth grooves. The upper end of the rotating shaft passes through the connecting frame and is fixed to the lower clamping plate. The lower clamping plate is in contact with the upper clamping mechanism.

[0008] Preferably, two T-shaped blocks are fixedly connected to the lower end of the connecting plate. The T-shaped blocks slide in the first T-shaped groove, which is opened at the upper end of the crossbar. A first transmission motor is fixedly connected inside the connecting plate. A gear is fixedly connected to the output end of the first transmission motor. A transmission tooth groove is opened on one side of the crossbar, and the gear meshes in the transmission tooth groove.

[0009] Preferably, the adjustable pushing mechanism includes a connecting gear, which is movably connected to the inner side of the connecting frame. The upper end of the connecting gear is provided with a second T-shaped groove, and several limiting tooth grooves are provided on both sides of the second T-shaped groove. A T-shaped rod is slidably connected in the second T-shaped groove, and a first supporting spring is fixedly connected in the second T-shaped groove. The other end of the first supporting spring is fixedly connected to the T-shaped rod.

[0010] Preferably, T-shaped sliding cavities are formed on both sides of the T-shaped rod, and T-shaped toothed plates are slidably connected in the T-shaped sliding cavities. Two second support springs are fixedly connected to one side of the T-shaped toothed plates, and the other end of the second support springs is fixedly connected to the T-shaped sliding cavity. A lever is movably connected to one end of the T-shaped rod, and two pull ropes are fixedly connected to one end of the lever. The pull ropes extend into the T-shaped sliding cavity away from the lever and are fixedly connected to the T-shaped toothed plates. The T-shaped rod is in contact with the T-shaped toothed rod, and the connecting gear meshes with the arc-shaped toothed plates.

[0011] Preferably, a T-shaped support rod is fixedly connected to the upper end of the T-shaped toothed rod, the T-shaped support rod is movably connected to the support plate, and a return spring is sleeved on the outer side of the T-shaped support rod. One end of the return spring is fixedly connected to the T-shaped toothed rod, and the other end is fixedly connected to the support plate.

[0012] Preferably, the upper clamping mechanism includes a U-shaped frame, which is fixedly connected to the upper end of the lower clamping plate. An upper clamping plate is provided inside the U-shaped frame. Two T-shaped sliding rods are movably connected inside the U-shaped frame. The lower end of the T-shaped sliding rod is fixedly connected to the upper clamping plate. A push spring is sleeved on the outside of the T-shaped sliding rod. The upper end of the push spring is fixedly connected to the U-shaped frame, and the lower end is fixedly connected to the upper clamping plate.

[0013] Preferably, a clearance hole is provided in one end of the connecting frame, and a plurality of clearance grooves are provided on the outer side of the turntable. A second drive motor is fixedly connected to the lower end of the connecting plate, and the output end of the second drive motor passes through the connecting plate and is fixedly connected to the turntable.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: By adjusting the adjustable push mechanism, the turntable rotates, causing the adjustable push mechanism to intermittently contact the T-shaped gear. When the adjustable push mechanism contacts the T-shaped gear, the automotive plastic parts clamped between the lower clamping plate and the upper clamping mechanism will start to rotate. When the adjustable push mechanism is no longer in contact with the T-shaped gear, the T-shaped gear will return to its initial position and drive the rotating shaft to rotate, causing the automotive plastic parts to rotate in the opposite direction. This back-and-forth oscillation of the automotive plastic parts during the spraying process ensures the uniformity of the spraying. At the same time, by adjusting the position of the adjustable push mechanism, the spray head can switch back and forth between full spraying or spraying a portion of the parts, and the customizable adjustable spray head can adjust the coating area of ​​the parts. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram illustrating the connection relationship between the gear and the transmission tooth groove of the present invention;

[0017] Figure 3 This is a three-dimensional structural diagram illustrating the connection relationship between the connecting plate and the turntable in this invention;

[0018] Figure 4 This is a three-dimensional structural diagram illustrating the connection relationship between the second drive motor and the connecting plate of the present invention;

[0019] Figure 5 This is a three-dimensional structural diagram illustrating the connection relationship between the connecting frame and the connecting gear in this invention.

[0020] Figure 6 This is a three-dimensional structural diagram illustrating the connection relationship between the T-shaped toothed rod and the connecting tooth groove of the present invention;

[0021] Figure 7 This is a cross-sectional perspective view of the three-dimensional structure of the connecting gear of the present invention;

[0022] Figure 8 This is a three-dimensional structural diagram of the disassembled state of the lever and T-shaped lever of the present invention.

[0023] In the diagram: 1. Crossbar; 2. Robotic arm; 3. Bidirectional spray pipe; 4. First T-slot; 5. First drive motor; 6. Connecting plate; 7. Transmission tooth groove; 8. Gear; 9. Arc-shaped toothed plate; 10. U-shaped frame; 11. Turntable; 12. T-block; 13. T-support rod; 14. T-slide rod; 15. Push spring; 16. Connecting frame; 17. Upper clamping plate; 18. Lower clamping plate; 19. Second T-slot; 20. Limiting tooth groove; 21. T-shaped toothed plate; 22. T-shaped rod; 23. Toggle lever; 24. First support spring; 25. T-shaped sliding cavity; 26. Second support spring; 27. Pull rope; 28. T-shaped toothed rod; 29. ​​Rotating shaft; 30. Connecting tooth groove; 31. Screw; 32. Support plate; 33. Connecting gear; 34. Clearance hole; 35. Second drive motor; 36. Return spring; 37. Clearance groove. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figure 1-8 The present invention provides a technical solution:

[0026] Example 1:

[0027] A dry coating system for automotive plastic parts includes two crossbars 1 and a robotic arm 2. The robotic arm 2 can be selected in appropriate size and model during use. The length of the crossbars 1 can be selected according to the needs of the production line. One end of the robotic arm 2 is fixedly connected to a bidirectional spray pipe 3, which enables simultaneous spraying of automotive plastic parts at two locations. Several connecting plates 6 are movably connected to the upper ends of the two crossbars 1. A turntable 11 is movably connected to the upper end of the connecting plates 6. Several connecting frames 16 are installed at equal intervals on the outer side of the turntable 11 via screws 31. The connecting frames 16 can be removed for maintenance or replacement by loosening the screws 31. An adjustable pushing mechanism is provided inside the connecting frame 16, which is in contact with a T-shaped toothed rod 28. An arc-shaped toothed plate 9 is fixedly connected to the upper end of the connecting plate 6, and the adjustable pushing mechanism is connected to the arc-shaped toothed plate 9. The T-shaped toothed rod 28 is movably connected inside a support plate 32, and the support plate 32 is fixedly connected inside the connecting frame 16.

[0028] A rotating shaft 29 is movably connected to the inner side of the connecting frame 16. Several connecting grooves 30 are provided on the outer side of the rotating shaft 29. A T-shaped toothed rod 28 meshes with the connecting grooves 30. The upper end of the rotating shaft 29 passes through the connecting frame 16 and is fixed to the lower clamping plate 18. The lower clamping plate 18 is in contact with the upper clamping mechanism. By clamping the automotive plastic parts between the lower clamping plate 18 and the upper clamping mechanism, the rotating shaft 29 is rotated by the movement of the T-shaped toothed rod 28. The rotation of the rotating shaft 29 causes the lower clamping plate 18 to rotate, so that the automotive plastic parts clamped between the lower clamping plate 18 and the upper clamping mechanism rotate.

[0029] Example 2:

[0030] Based on Embodiment 1, in order to adjust the back-and-forth swing amplitude of the clamped automotive plastic parts, two T-blocks 12 are fixedly connected to the lower end of the connecting plate 6. The T-blocks 12 slide in the first T-groove 4, which is located at the upper end of the crossbar 1. By having the T-blocks 12 slide in the first T-groove 4, the connecting plate 6 can move smoothly. A first drive motor 5 is fixedly connected inside the connecting plate 6. A gear 8 is fixedly connected to the output end of the first drive motor 5. A transmission tooth groove 7 is provided on one side of the crossbar 1. The gear 8 meshes in the transmission tooth groove 7. When the first drive motor 5 is turned on, the gear 8 is driven to move. Since the gear 8 meshes in the transmission tooth groove 7, the connecting plate 6 will be driven to move during the rotation of the gear 8. When the two connecting plates 6 move to the set position, the first drive motor 5 will stop rotating.

[0031] The adjustable push mechanism includes a connecting gear 33, which is movably connected to the inner side of the connecting frame 16. A second T-slot 19 is formed at the upper end of the connecting gear 33. Several limiting toothed grooves 20 are formed on both sides of the second T-slot 19. A T-shaped rod 22 is slidably connected within the second T-slot 19. A first support spring 24 is fixedly connected within the second T-slot 19. The other end of the first support spring 24 is fixedly connected to the T-shaped rod 22. The first support spring 24 is used to push the T-shaped rod 22 back to its initial position quickly. T-shaped toothed grooves 20 are formed on both sides of the T-shaped rod 22. The T-shaped sliding cavity 25 has a T-shaped toothed plate 21 slidingly connected inside it. Two second support springs 26 are fixedly connected to one side of the T-shaped toothed plate 21, and the other end of the second support springs 26 is fixedly connected to the T-shaped sliding cavity 25. One end of the T-shaped rod 22 is movably connected to a lever 23, and one end of the lever 23 is fixedly connected to two pull ropes 27. The pull ropes 27 extend into the T-shaped sliding cavity 25 away from the lever 23 and are fixedly connected to the T-shaped toothed plate 21. The T-shaped rod 22 contacts the T-shaped toothed rod 28, and the connecting gear 33 meshes with the arc-shaped toothed plate 9.

[0032] A T-shaped support rod 13 is fixedly connected to the upper end of the T-shaped gear 28. The T-shaped support rod 13 is movably connected inside the support plate 32. A return spring 36 is sleeved on the outside of the T-shaped support rod 13. One end of the return spring 36 is fixedly connected to the T-shaped gear 28, and the other end is fixedly connected to the support plate 32. When the T-shaped rod 22 is no longer in contact with the T-shaped gear 28, the T-shaped gear 28 moves back to its initial position under the elastic force of the return spring 36. At the same time, the rotating shaft 29 will rotate in the opposite direction, causing the automotive plastic parts to swing back and forth. When the T-shaped rod 22 moves to the position furthest from the support plate 32, the connecting gear 33 drives the T-shaped rod 22 to rotate, and the T-shaped gear 28 will not be pushed to move. When the T-shaped rod 22 moves to the position closest to the support plate 32, the connecting gear 33 drives the T-shaped rod 22 to rotate, and the T-shaped gear 28 will be pushed to move to the maximum extent, causing the rotating shaft 29 to drive the lower clamping plate 18 to rotate 360 ​​degrees.

[0033] The upper clamping mechanism includes a U-shaped frame 10, which is fixedly connected to the upper end of the lower clamping plate 18. An upper clamping plate 17 is provided inside the U-shaped frame 10. Two T-shaped slide rods 14 are movably connected inside the U-shaped frame 10. The lower end of the T-shaped slide rods 14 is fixedly connected to the upper clamping plate 17. A push spring 15 is sleeved on the outside of the T-shaped slide rods 14. The upper end of the push spring 15 is fixedly connected to the U-shaped frame 10, and the lower end is fixedly connected to the upper clamping plate 17. Pulling down the two T-shaped slide rods 14 causes the upper clamping plate 17 connected to them to move. At this time, the push spring 15 is compressed, and the car plastic parts are placed between the upper clamping plate 17 and the lower clamping plate 18. After placement, the pull on the T-shaped slide rods 14 is released. At this time, under the elastic force of the push spring 15, the upper clamping plate 17 moves down to clamp the car plastic parts.

[0034] A clearance hole 34 is provided at one end of the connecting frame 16, and several clearance grooves 37 are provided on the outer side of the turntable 11. The clearance hole 34 and clearance grooves 37 allow the T-shaped toothed rod 28 to be moved back and forth. A second drive motor 35 is fixedly connected to the lower end of the connecting plate 6. The output end of the second drive motor 35 passes through the connecting plate 6 and is fixedly connected to the turntable 11. During the spraying process, the second drive motor 35 will start to rotate, and the turntable 11 will be driven to move. Several automotive plastic parts located on the turntable 11 will move synchronously.

[0035] Working principle: When in use, the car plastic parts are sequentially clamped between the corresponding upper clamping plate 17 and lower clamping plate 18. Specifically, the two T-shaped slide rods 14 are pulled down to move the upper clamping plate 17 connected to them. At this time, the push spring 15 is compressed, and the car plastic parts are placed between the upper clamping plate 17 and the lower clamping plate 18. After placement, the pull on the T-shaped slide rods 14 is released. At this time, under the elastic force of the push spring 15, the upper clamping plate 17 moves down to clamp the car plastic parts.

[0036] The position of the T-shaped rod 22 is adjusted to control the swing amplitude of the automotive plastic parts as needed. The closer the T-shaped rod 22 is to the outer side of the connecting gear 33, the smaller the swing amplitude of the clamped automotive plastic parts. The specific adjustment method is as follows: press down on the lever 23 to move the two pull ropes 27 connected to its other end upward. The upward movement of the pull ropes 27 causes the T-shaped toothed plate 21 to move inward along the T-shaped sliding cavity 25. At this time, the second support spring 26 is compressed, and the T-shaped toothed plate 21 will disengage from the second T-shaped groove 19. The T-shaped rod 22 can move along the second T-shaped groove 19 after being engaged with several limiting tooth grooves 20. The T-shaped rod 22 can be moved to a suitable position according to the swing amplitude of the car plastic parts. Then, the pressure on the lever 23 is released. At this time, under the elastic force of the second support spring 26, the T-shaped tooth plate 21 will move outward and re-engage with several limiting tooth grooves 20, so that the T-shaped rod 22 is limited. At the same time, the pull rope 27 will be pulled by the T-shaped tooth plate 21, so that the lever 23 returns to the initial position.

[0037] The first drive motor 5 is turned on, driving the gear 8 to move. Since the gear 8 meshes in the transmission tooth groove 7, the connecting plate 6 will be moved along with it as the gear 8 rotates. When the two connecting plates 6 move to the set position, the first drive motor 5 will stop rotating. At this time, the robotic arm 2 will drive the bidirectional spraying pipe 3 to spray several clamped automotive plastic parts. During the spraying process, the second drive motor 35 will start rotating, and the turntable 11 will be moved along with it. Several automotive plastic parts located on the turntable 11 will move synchronously. When the connecting gear 33 moves to the position of the arc-shaped toothed plate 9, the connecting gear 33 will start rotating. The rotation of gear 33 causes T-shaped rod 22 to rotate. When T-shaped rod 22 contacts T-shaped gear 28, the rotation of gear 33 causes T-shaped rod 22 to push T-shaped gear 28 to move. T-shaped gear 28 meshes with connecting tooth groove 30. As T-shaped gear 28 moves, rotating shaft 29 is driven to rotate. The rotation of rotating shaft 29 drives lower clamping plate 18 to rotate. At this time, the automotive plastic parts will rotate accordingly. When T-shaped rod 22 stops contacting T-shaped gear 28, under the elastic force of return spring 36, T-shaped gear 28 moves back to its initial position. At the same time, rotating shaft 29 will rotate in the opposite direction, causing the automotive plastic parts to swing back and forth.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dry coating system for automotive plastic parts, characterized in that: The device includes two horizontal bars and a robotic arm. One end of the robotic arm is fixedly connected to a bidirectional spray pipe. Several connecting plates are movably connected to the upper ends of the two horizontal bars. A turntable is movably connected to the upper end of each connecting plate. Several connecting frames are installed at equal intervals on the outer side of the turntable via screws. An adjustable pushing mechanism is provided inside each connecting frame. The adjustable pushing mechanism is in contact with a T-shaped toothed rod. An arc-shaped toothed plate is fixedly connected to the upper end of each connecting plate. The adjustable pushing mechanism is connected to the arc-shaped toothed plate. The T-shaped toothed rod is movably connected inside a support plate. The support plate is fixedly connected inside the connecting frames. The inner side of the connecting frame is movably connected to a rotating shaft, and the outer side of the rotating shaft is provided with several connecting tooth grooves. The T-shaped toothed rod meshes with the connecting tooth grooves. The upper end of the rotating shaft passes through the connecting frame and is fixed to the lower clamping plate. The lower clamping plate is in contact with the upper clamping mechanism. The adjustable push mechanism includes a connecting gear, which is movably connected to the inner side of the connecting frame. A second T-shaped groove is provided at the upper end of the connecting gear. Several limiting tooth grooves are provided on both sides of the second T-shaped groove. A T-shaped rod is slidably connected in the second T-shaped groove. A first support spring is fixedly connected in the second T-shaped groove. The other end of the first support spring is fixedly connected to the T-shaped rod. Both sides of the T-shaped rod have T-shaped sliding cavities, and T-shaped toothed plates slide within the T-shaped sliding cavities. Two second support springs are fixedly connected to one side of the T-shaped toothed plates, and the other end of the second support springs is fixedly connected to the T-shaped sliding cavity. A lever is movably connected to one end of the T-shaped rod, and two pull ropes are fixedly connected to one end of the lever. The pull ropes extend into the T-shaped sliding cavity away from the lever and are fixedly connected to the T-shaped toothed plates. The T-shaped rod is in contact with the T-shaped toothed rod, and the connecting gear meshes with the arc-shaped toothed plates.

2. The dry coating system for automotive plastic parts according to claim 1, characterized in that: Two T-shaped blocks are fixedly connected to the lower end of the connecting plate. The T-shaped blocks slide in the first T-shaped groove, which is opened at the upper end of the crossbar. A first transmission motor is fixedly connected inside the connecting plate. A gear is fixedly connected to the output end of the first transmission motor. A transmission tooth groove is opened on one side of the crossbar, and the gear meshes in the transmission tooth groove.

3. The dry coating system for automotive plastic parts according to claim 1, characterized in that: A T-shaped support rod is fixedly connected to the upper end of the T-shaped toothed rod. The T-shaped support rod is movably connected to the support plate. A return spring is sleeved on the outside of the T-shaped support rod. One end of the return spring is fixedly connected to the T-shaped toothed rod, and the other end is fixedly connected to the support plate.

4. The dry coating system for automotive plastic parts according to claim 1, characterized in that: The upper clamping mechanism includes a U-shaped frame, which is fixedly connected to the upper end of the lower clamping plate. An upper clamping plate is provided inside the U-shaped frame. Two T-shaped sliding rods are movably connected inside the U-shaped frame. The lower end of the T-shaped sliding rod is fixedly connected to the upper clamping plate. A push spring is sleeved on the outside of the T-shaped sliding rod. The upper end of the push spring is fixedly connected to the U-shaped frame, and the lower end is fixedly connected to the upper clamping plate.

5. The dry coating system for automotive plastic parts according to claim 1, characterized in that: A clearance hole is provided at one end of the connecting frame, and several clearance grooves are provided on the outer side of the turntable. A second drive motor is fixedly connected to the lower end of the connecting plate. The output end of the second drive motor passes through the connecting plate and is fixedly connected to the turntable.

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