Lifting table top plate spraying device and spraying process

Abstract

The invention discloses a lifting table top plate spraying device and a spraying process, and relates to the technical field of spraying devices.The lifting table top plate spraying device comprises a U-shaped frame, spraying mechanisms are installed on the two sides of the U-shaped frame, and two vertical plates are installed on the inner wall of the top side of the U-shaped frame through driving mechanisms. According to the device, the peripheral side of the table top plate can be clamped through the bottom clamping mechanism and the side clamping mechanism, when the bottom clamping mechanism moves, the spraying mechanism can be driven to be correspondingly adjusted so that the spraying mechanism can be evenly distributed in the height direction of the table top plate, and meanwhile when the side clamping mechanism clamps the side of the table top plate, the spraying mechanism can be driven to rotate; the reciprocating movement distance of the reciprocating movement mechanism can be adjusted through the lifting mechanism, so that the reciprocating movement distance of the long table top plate is large, the reciprocating movement distance of the short table top plate is small, paint is saved, the clamped table top plate can be driven to correspond to the spraying mechanisms through the driving mechanism, and reciprocating spraying can be conducted on the table top plate through the two spraying mechanisms.

Description

Technical Field

[0001] The present invention relates to the technical field of spraying devices, in particular to a spraying device and a spraying process for a desktop panel of a lifting table. Background Art

[0002] The desktop of the lifting table needs to be painted during the production process. The quality of the surface spraying directly affects the appearance, wear resistance and service life of the product. The wooden surface of the desktop of the lifting table that has been painted will become flat and smooth. In order to improve the painting efficiency of the desktop of the lifting table, corresponding spraying equipment is usually used.

[0003] When spraying a tabletop, the spraying device needs to clamp the tabletop. To avoid affecting the spraying process, the tabletop is typically clamped by the sides. Conventional systems only clamp the tabletop on both sides, making it prone to falling when the tabletop moves. Furthermore, the spraying range of the spraying mechanism cannot be adjusted to the size of the tabletop, which can easily lead to paint waste when processing tabletops of varying widths and heights. Therefore, we disclose a spraying device and process for a lifting tabletop. Summary of the Invention

[0004] The present invention provides a spraying device and a spraying process for a desktop panel of a lifting table, so as to solve the problems raised in the background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a lifting table top spraying device, comprising a U-shaped frame, spraying mechanisms installed on both sides of the U-shaped frame, two vertical plates installed on the top inner wall of the U-shaped frame through a driving mechanism, a fixed frame fixedly installed between the two vertical plates, a side clamping mechanism slidably installed on the fixed frame, a bottom clamping mechanism is installed in cooperation with the side clamping mechanism, the bottom clamping mechanism is installed in cooperation with the spraying mechanism, a reciprocating mechanism is installed on the side clamping mechanism through a lifting mechanism, and the reciprocating mechanism is slidably installed on the top of the fixed frame.

[0006] Furthermore, the spraying mechanism includes a paint storage box fixedly mounted on the side of the U-shaped frame, a pump fixedly mounted on the side of the paint storage box, a liquid inlet end of the pump being connected to the interior of the paint storage box, a discharge pipe fixedly mounted on the liquid outlet end of the paint storage box, a liquid separation box fixedly connected to the side of the paint storage box at one end of the discharge pipe away from the pump, a plurality of hoses connected to one side of the liquid separation box, and a nozzle fixedly mounted on one end of each of the plurality of hoses away from the liquid separation box.

[0007] Furthermore, the spraying mechanism also includes two fixed blocks fixedly installed on the sides of the U-shaped frame, a mounting rod fixedly installed between the two fixed blocks, a plurality of movable blocks slidably sleeved on the mounting rod, the plurality of movable blocks are respectively fixedly connected to the plurality of nozzles, the top of the movable block located at the top is fixedly connected to the bottom of the fixed block, a spring sleeved on the mounting rod is provided between each two adjacent movable blocks, a rectangular hole is opened on the side of the U-shaped frame, the sides of the plurality of nozzles pass through the rectangular hole, an adjusting rod is fixedly installed on the bottom of the nozzle located at the bottom, the adjusting rod includes a horizontal portion and an inclined portion, wherein the horizontal portion is located in the U-shaped frame, the inclined portion extends out of the U-shaped frame, and gradually tilts upward in the direction away from the U-shaped frame.

[0008] Furthermore, the driving mechanism includes a T-shaped slot opened on both sides of the U-shaped frame, a T-shaped slide is slidably installed in the T-shaped slot, the tops of the two vertical plates are fixedly connected to the bottom of the T-shaped slide, a moving motor is fixedly installed on the bottom of the T-shaped slide, a transmission gear is fixedly installed on the output shaft of the moving motor, a rack is fixedly installed on the top inner wall of the U-shaped frame, and the rack is meshed with the transmission gear.

[0009] Furthermore, the side clamping mechanism includes a sliding frame slidably sleeved on the fixed frame, a driving motor is fixedly installed on one side of the sliding frame, a bidirectional screw is rotatably installed on the sliding frame, the threads at both ends of the bidirectional screw have opposite rotation directions, the driving motor is connected to the bidirectional screw, and both ends of the bidirectional screw are threadedly sleeved with moving blocks, a displacement hole is provided on the inner wall of the bottom side of the sliding frame, the bottoms of the two moving blocks are fixedly installed with driving plates through the displacement blocks, the two displacement blocks are slidably connected to the displacement holes, a horizontal hole is provided on the adjacent side of the two driving plates, and a cross bar is slidably installed in the two cross holes, both ends of the cross bar extend outside the cross hole, and a side clamp is fixedly installed on the ends of the two cross bars close to each other.

[0010] Furthermore, the bottom clamping mechanism includes an upper clamping block fixedly mounted on the bottom of the sliding frame, and the sides of the two driving plates away from each other are fixedly mounted with a gear box, and vertical rods are installed in the two gear boxes through gear assemblies, and the bottoms of the two vertical rods are fixedly mounted with a lower clamping plate, and the bottoms of the lower clamping plates are fixedly mounted with an extrusion rod, and the ends of the two extrusion rods away from each other are rotatably mounted with extrusion wheels, and the two extrusion wheels respectively correspond to the inclined parts of the two adjusting rods, and the bottoms of the two driving plates are fixedly mounted with guide rods, and the lower clamping plates are slidably connected to the guide rods on the corresponding sides.

[0011] Furthermore, the gear assembly includes two mounting gears rotatably mounted on the inner walls on both sides of the gear box, the two mounting gears are coaxially fixedly connected, vertical holes for the vertical rod to pass through are provided on the top inner wall and the bottom inner wall of the gear box, and tooth grooves are provided on the sides of the vertical rod and the top of the horizontal rod, and the two tooth grooves are respectively engaged with the two mounting gears.

[0012] Furthermore, the reciprocating mechanism includes two limit rods fixedly mounted on the bottom of the T-shaped slide, the bottom ends of the two limit rods are fixedly connected to the fixed frame, the two limit rods are slidably sleeved with sliding plates, the top of the sliding plates is fixedly mounted with an electric push rod, the movable end of the electric push rod is fixedly mounted with an upper pressure column, the side of the fixed frame is fixedly mounted with a rotating shaft, the rotating shaft is rotatably sleeved with a swing plate, the side of the T-shaped slide is provided with an upper pressure hole and a lower pressure hole, the side of the sliding frame is fixedly mounted with a lower pressure column, the lower pressure column and the upper pressure column slide into the lower pressure hole and the upper pressure hole respectively.

[0013] Furthermore, the lifting mechanism includes a U-shaped sliding rod fixedly installed on the side of the sliding plate, a slider is slidably sleeved on the U-shaped sliding rod, two push rods are rotatably installed on the side of the slider, and the bottoms of the two push rods are respectively rotatably installed on the sides of the two side clamps.

[0014] A spraying process of the above-mentioned lifting table top spraying device includes the following steps: Step 1: Clamp the sides of the desktop panel with the bottom clamping mechanism and the side clamping mechanism. When the bottom clamping mechanism moves, the spraying mechanism is driven to adjust accordingly so that the spraying mechanism is evenly distributed along the height direction of the desktop panel. At the same time, when the side clamping mechanism clamps the sides of the desktop panel, the reciprocating distance of the reciprocating mechanism is adjusted by the lifting mechanism. Step 2: The clamped desktop panel is driven by the driving mechanism to correspond to the spraying mechanism, and the desktop panel is sprayed reciprocally by the two spraying mechanisms.

[0015] Compared with the prior art, the present invention provides a spraying device and spraying process for a lifting table top, which has the following beneficial effects: In the present invention, the peripheral sides of the desktop panel can be clamped by the bottom clamping mechanism and the side clamping mechanism. When the bottom clamping mechanism moves, it will drive the spraying mechanism to adjust accordingly so that it is evenly distributed along the height direction of the desktop panel. At the same time, when the side clamping mechanism clamps the side of the desktop panel, the reciprocating movement distance of the reciprocating movement mechanism will be adjusted by the lifting mechanism, so that the long desktop panel has a large back-and-forth movement distance and the short desktop panel has a small back-and-forth movement distance, thereby saving paint. The clamped desktop panel can be driven by the driving mechanism to correspond to the spraying mechanism, and the desktop panel can be sprayed reciprocatingly by the two spraying mechanisms.

[0016] In the present invention, by starting the electric push rod, the movable end of the electric push rod is in the middle state at this time, and the movable end of the electric push rod extends and contracts to move the upper pressure column, and the upper pressure column squeezes the inner wall of the upper pressure hole to rotate the swing plate, and the rotation of the swing plate causes the inner wall of the lower pressure hole to squeeze the lower pressure column to move the sliding frame back and forth. The sliding frame moves back and forth to move the desktop panel located between the two side clamps, the upper clamping block and the lower clamping plate back and forth, thereby achieving uniform paint spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a first-person perspective schematic diagram of the spraying device for the desktop panel of a lifting table; Figure 2 This is a second-view perspective schematic diagram of the lifting table top spraying device; Figure 3 for Figure 2 Schematic diagram of the middle part structure; Figure 4 for Figure 2 Schematic diagram of the structure at A in the middle; Figure 5 It is a three-dimensional diagram of part of the spraying mechanism; Figure 6 This is a third-person perspective diagram of the spraying device for the lifting table top; Figure 7 for Figure 6 Schematic diagram of the middle part structure; Figure 8 for Figure 6 Schematic diagram of the structure at point B.

[0018] In the figure: 1. U-shaped frame; 2. T-shaped slot; 3. T-shaped slide; 4. Side clamp; 5. Vertical plate; 6. Fixed frame; 7. Adjustment rod; 8. Rectangular hole; 9. Discharge pipe; 10. Pump; 11. Paint storage box; 12. Sliding plate; 13. Swing plate; 14. Moving block; 15. Push rod; 16. Slider; 17. U-shaped slide; 18. Electric push rod; 19. Limit rod; 20. Upper pressure hole; 21. Upper pressure column; 22. Moving motor; 23. Transmission gear; 24. Rack; 25. Spray head; 26. Moving block; 2 7. Mounting rod; 28. Spring; 29. Hose; 30. Liquid separation box; 31. Fixed block; 32. Sliding frame; 33. Displacement block; 34. Guide rod; 35. Lower clamping plate; 36. Extrusion wheel; 37. Extrusion rod; 38. Drive plate; 39. Displacement hole; 40. Lower pressure column; 41. Drive motor; 42. Bidirectional screw; 43. Lower pressure hole; 44. Upper clamping block; 45. Vertical rod; 46. Cross rod; 47. Cross hole; 48. Gear box; 49. Tooth groove; 50. Mounting gear; 51. Vertical hole; 52. Rotating shaft. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement solutions or common means, they will not be described in detail herein, but they still fall within the scope of protection of this application.

[0020] Figures 1-8 The best embodiment of the present invention is shown below in conjunction with the attached Figures 1-8 The present invention is further described.

[0021] Refer to the attached Figures 1-8 The present invention discloses a lifting table top spraying device, which includes a U-shaped frame 1. Spraying mechanisms are installed on both sides of the U-shaped frame 1. Two vertical plates 5 are installed on the top inner wall of the U-shaped frame 1 through a driving mechanism. A fixed frame 6 is fixedly installed between the two vertical plates 5. A side clamping mechanism is slidably installed on the fixed frame 6. A bottom clamping mechanism is installed in conjunction with the side clamping mechanism. The bottom clamping mechanism is installed in conjunction with the spraying mechanism. A reciprocating mechanism is installed on the side clamping mechanism through a lifting mechanism. The reciprocating mechanism is slidably installed on the top of the fixed frame 6.

[0022] By means of the above structure: the peripheral sides of the desktop panel can be clamped by the bottom clamping mechanism and the side clamping mechanism, and when the bottom clamping mechanism moves, the spraying mechanism will be driven to move synchronously so that it is evenly distributed along the height direction of the desktop panel. At the same time, when the side clamping mechanism clamps the side of the desktop panel, the stroke of the reciprocating mechanism will be adjusted through the lifting mechanism, so that the long desktop panel has a large reciprocating distance and the short desktop panel has a small reciprocating distance, thereby saving paint. The clamped desktop panel can be driven to correspond to the spraying mechanism through the driving mechanism, and the desktop panel can be sprayed reciprocatingly through the two spraying mechanisms.

[0023] like Figure 2 As shown, the spraying mechanism includes a paint storage tank 11 fixedly mounted on the side of a U-shaped frame 1. A pump 10 is fixedly mounted on the side of the paint storage tank 11. The liquid inlet end of the pump 10 is connected to the interior of the paint storage tank 11. A discharge pipe 9 is fixedly mounted on the liquid outlet end of the paint storage tank 11. The end of the discharge pipe 9 away from the pump 10 is fixedly mounted with a liquid separation tank 30 fixedly connected to the side of the paint storage tank 11. One side of the liquid separation tank 30 is connected to multiple hoses 29, and the ends of the multiple hoses 29 away from the liquid separation tank 30 are fixedly mounted with spray heads 25. When the table top moves to the middle position of the U-shaped frame 1, the two pumps 10 are activated to draw paint from the paint storage tank 11 and spray it onto both sides of the table top through the multiple spray heads 25.

[0024] like Figure 2 and Figure 5As shown, the spraying mechanism also includes two fixed blocks 31 fixedly mounted on the side of the U-shaped frame 1, a mounting rod 27 is fixedly mounted between the two fixed blocks 31, and a plurality of movable blocks 26 are slidably sleeved on the mounting rod 27. The sides of the plurality of movable blocks 26 are respectively fixedly connected to the plurality of nozzles 25, and the top of the movable block 26 located at the top is fixedly connected to the bottom of the fixed block 31. A spring 28 sleeved on the outside of the mounting rod 27 is provided between each two adjacent movable blocks 26. A rectangular hole 8 is opened on the side of the U-shaped frame 1, and a plurality of nozzles 25 all pass through the rectangular hole 8. An adjusting rod 7 is fixedly mounted on the bottom of the nozzle 25 located at the bottom, and the adjusting rod 7 includes a horizontal portion and an inclined portion, wherein the horizontal portion is located in the U-shaped frame 1, and the inclined portion extends out of the U-shaped frame 1 and gradually tilts upward in the direction away from the U-shaped frame 1. An extrusion rod 37 is fixedly mounted on the bottom of the lower splint 35, and extrusion wheels 36 are rotatably mounted at both ends of the two extrusion rods 37. The two extrusion wheels 36 are respectively arranged opposite to the two adjusting rods 7. The movement of the lower clamping plate 35 drives the two extrusion wheels 36 to move. When the two extrusion wheels 36 respectively contact the inclined parts of the two adjusting rods 7, the two adjusting rods 7 move upward until the two extrusion wheels 36 respectively contact the horizontal parts of the two adjusting rods 7. When the two adjusting rods 7 move, the movable block 26 located at the bottom moves upward. Since the elastic coefficients of the multiple springs 28 are the same, after the bottom movable block 26 moves upward, the multiple movable blocks 26 will also move upward and will still be evenly distributed on the mounting rod 27, so that the multiple nozzles 25 are evenly distributed, so that the multiple movable blocks 26 can correspond to the desktop panels of corresponding heights.

[0025] like Figure 3 and Figure 4 As shown, the drive mechanism includes T-slots 2 provided on either side of a U-shaped frame 1. T-shaped slides 3 are slidably mounted within the T-slots 2. The tops of the two vertical panels 5 are fixedly connected to the T-slots 3. A moving motor 22 is fixedly mounted to the bottom of the T-slots 3. A transmission gear 23 is fixedly mounted to the output shaft of the moving motor 22. A rack 24 is fixedly mounted on the top inner wall of the U-shaped frame 1, and the rack 24 meshes with the transmission gear 23. When the moving motor 22 is activated, the output shaft of the moving motor 22 drives the transmission gear 23 to rotate. The transmission gear 23 and the rack 24 cooperate to cause the T-slots 3 to slide within the T-slots 2, thereby moving the tabletop located between the lower clamping plate 35 and the upper clamping block 44. In this embodiment, the vertical panels 5 are fixedly connected to the bottom of the T-slots 3 to prevent interference with the movement of the T-slots 3.

[0026] like Figure 7 and Figure 8As shown, the side clamping mechanism includes a sliding frame 32 that is slidably sleeved on the fixed frame 6, and a driving motor 41 is fixedly installed on one side of the sliding frame 32. A bidirectional screw 42 is rotatably installed on the sliding frame 32, and the threads at both ends of the bidirectional screw 42 have opposite rotation directions. The driving motor 41 is connected to the bidirectional screw 42, and both ends of the bidirectional screw 42 are threadedly sleeved with a moving block 14. A displacement hole 39 is provided on the inner wall of the bottom side of the sliding frame 32, and the bottoms of the two moving blocks 14 are fixedly installed with a driving plate 38 through the displacement block 33. The two displacement blocks 33 are slidably connected to the displacement hole 39. A transverse hole 47 is provided on the adjacent side of the two driving plates 38, and a cross bar 46 is slidably installed in the two transverse holes 47. Both ends of the cross bar 46 extend outside the transverse hole 47, and the end of the two cross bars 46 close to each other is fixedly installed with a side clamping plate 4. Start the drive motor 41, and the output shaft of the drive motor 41 rotates to drive the bidirectional screw 42 to rotate, so that the two moving blocks 14 move closer to each other, and the two moving blocks 14 move to drive the two driving plates 38 and the two side clamping plates 4 move closer to each other to clamp the desktop panel.

[0027] like Figure 7 and Figure 8 As shown, the bottom clamping mechanism includes an upper clamping block 44 fixedly mounted on the bottom of the sliding frame 32. A gear box 48 is fixedly mounted on the sides of the two driving plates 38 that are away from each other. Vertical rods 45 are installed in the two gear boxes 48 through gear assemblies. The bottoms of the two vertical rods 45 are fixedly mounted with the lower clamping plate 35. The bottoms of the two vertical rods 45 are fixedly mounted with guide rods 34. The lower clamping plates 35 are slidably connected to the guide rods 34 on the corresponding sides. The two driving plates 38 continue to move, causing the two cross bars 46 to slide in the two horizontal holes 47 respectively. The gear assembly causes the two vertical rods 45 to move upward. The movement of the two vertical rods 45 drives the lower clamping plate 35 upward, thereby causing the desktop panel to move upward until the top of the desktop panel contacts the bottom of the upper clamping block 44, thereby clamping the desktop panel.

[0028] like Figure 8 As shown, the gear assembly includes two mounting gears 50 rotatably mounted on the inner walls of the gear box 48 on either side. The two mounting gears 50 are coaxially fixedly connected. Vertical holes 51 are provided on the top and bottom inner walls of the gear box 48 for the vertical rod 45 to pass through. Tooth grooves 49 are provided on the sides of the vertical rod 45 and the top of the crossbar 46, forming a rack at one end of the vertical rod 45 and crossbar 46 located within the gear box 48. The two sets of tooth grooves 49 respectively mesh with the two mounting gears 50. The diameter of the mounting gear 50 meshing with the vertical rod 45 is larger than the diameter of the other mounting gear 50. This arrangement has the advantage of allowing the vertical rod 45 to move a greater distance than the crossbar 46. When the two crossbars 46 slide within the two horizontal holes 47, the meshing relationship between the tooth grooves 49 and the mounting gears 50 causes the two vertical rods 45 to move upward. Specifically, the diameter ratio of the two mounting gears 50 can be adjusted by adjusting the aspect ratio of the desktop panel.

[0029] like Figure 3 、 Figure 7 and Figure 8 As shown, the reciprocating mechanism includes two limit rods 19 fixedly mounted on the bottom of the T-shaped slide 3, the bottom ends of the two limit rods 19 are fixedly connected to the fixed frame 6, the two limit rods 19 are slidably sleeved with a sliding plate 12, the top of the sliding plate 12 is fixedly mounted with an electric push rod 18, the movable end of the electric push rod 18 is fixedly mounted with an upper pressure column 21, the side of the fixed frame 6 is fixedly mounted with a rotating shaft 52, the rotating shaft 52 is rotatably sleeved with a swing plate 13, the side of the T-shaped slide 3 is provided with an upper pressure hole 20 and a lower pressure hole 43, the side of the sliding frame 32 is fixedly mounted with a lower pressure column 40, the lower pressure column 40 and the upper pressure column 21 slide into the lower pressure hole 43 and the upper pressure hole 20 respectively. By starting the electric push rod 18, the movable end of the electric push rod 18 is in the middle state at this time, and the movable end of the electric push rod 18 is extended and retracted to move the upper pressure column 21, and the upper pressure column 21 squeezes the inner wall of the upper pressure hole 20, thereby causing the swing plate 13 to rotate, and the swing plate 13 rotates to cause the inner wall of the lower pressure hole 43 to squeeze the lower pressure column 40, thereby causing the sliding frame 32 to move back and forth, and the sliding frame 32 moves back and forth to cause the desktop panel located between the two side clamps 4, the upper clamping block 44 and the lower clamping plate 35 to move back and forth, thereby achieving uniform paint spraying.

[0030] like Figure 3 As shown, the lifting mechanism includes a U-shaped slide bar 17 fixedly mounted on the side of the sliding plate 12, and a slider 16 is slidably sleeved on the U-shaped slide bar 17. Two push rods 15 are rotatably mounted on the side of the slider 16, and the bottoms of the two push rods 15 are rotatably mounted on the sides of the two side clamps 4 respectively. The back-and-forth movement distance of the sliding frame 32 is adaptively adjusted according to the distance between the two side splints 4. During the movement of the two side splints 4, the two push rods 15 will rotate, thereby pushing the slider 16 upward. The movement of the slider 16 drives the U-shaped slide bar 17 and the sliding plate 12 upward. The movement of the sliding plate 12 drives the electric push rod 18 upward, thereby causing the upper pressure column 21 to move upward. When the width of the desktop is long, the upper pressure column 21 is closer to the bottom of the upper pressure hole 20, so that the rotation angle of the swing plate 13 is larger when the upper pressure column 21 moves. When the width of the desktop is short, the upper pressure column 21 is closer to the top of the upper pressure hole 20, so that the rotation angle of the swing plate 13 is small when the upper pressure column 21 moves. Therefore, the back-and-forth movement range of the desktop can be adaptively adjusted according to the width of the desktop. The two push rods 15 are both tilted, and the distance between the two push rods 15 gradually decreases from bottom to top.

[0031] The present application also discloses a spraying process for a lifting table top panel, comprising the following steps: Step 1: Clamp the sides of the desktop panel using the bottom clamping mechanism and the side clamping mechanism. When the bottom clamping mechanism moves, it drives the spraying mechanism to adjust accordingly so that the spray is evenly distributed along the height direction of the desktop panel. At the same time, when the side clamping mechanism clamps the sides of the desktop panel, the lifting mechanism adjusts the reciprocating distance of the reciprocating mechanism. Step 2: Use the driving mechanism to drive the clamped desktop panel to face the spraying mechanism, and use the two spraying mechanisms to spray both sides of the desktop panel respectively.

[0032] Working principle: When spraying, the staff places the desktop panel vertically and makes its top fit with the upper clamping block 44. The staff's hands should avoid the side splints 4 and the lower splint 35. By starting the drive motor 41, the output shaft of the drive motor 41 rotates to drive the bidirectional screw 42 to rotate, so that the two moving blocks 14 approach each other. The two moving blocks 14 move to drive the two driving plates 38 and the two side splints 4 approach each other. When the two side splints 4 contact the two sides of the desktop panel, the positions of the two side splints 4 cannot move further. The two driving plates 38 continue to move to make the two cross bars 46 slide in the two cross holes 47 respectively. The meshing relationship between the tooth grooves 49 and the mounting gear 50 makes the two vertical rods 45 move upward. The two vertical rods 45 move to drive the lower splint 35 to move upward until the lower splint 35 presses the lower part of the desktop panel, so that the four sides of the desktop panel can be fixed. At the same time, the lower splint 35 moves to drive the extrusion rod 37 and the two extrusion wheels 36 to move, and the height of the two extrusion wheels 36 changes.

[0033] Then start the moving motor 22, and the output shaft of the moving motor 22 drives the transmission gear 23 to rotate, and then cooperates with the rack 24 to make the T-shaped slide 3 slide on the T-shaped slot 2, so that the desktop panel located between the lower clamping plate 35 and the upper clamping block 44 moves, and the movement of the lower clamping plate 35 drives the two extrusion wheels 36 to move. When the two extrusion wheels 36 respectively contact the inclined parts of the two adjusting rods 7, the two adjusting rods 7 move upward until the two extrusion wheels 36 respectively contact the horizontal parts of the two adjusting rods 7. When the two adjusting rods 7 move, the movable block 26 located at the bottom moves upward. Since the elastic coefficients of multiple springs 28 are the same, after the bottom movable block 26 moves upward, multiple movable blocks 26 move upward and will still be evenly distributed on the mounting rod 27, so that multiple nozzles 25 are evenly distributed, so that multiple movable blocks 26 can correspond to desktop panels of corresponding heights.

[0034] When the desktop panel moves to the middle position of the U-shaped frame 1, the two pumps 10 are started to extract the paint in the paint storage box 11 and spray it on both sides of the desktop panel through multiple nozzles 25. At the same time, by starting the electric push rod 18, the movable end of the electric push rod 18 is in the middle state at this time. The movable end of the electric push rod 18 is extended and retracted to move the upper pressure column 21. The upper pressure column 21 squeezes the inner wall of the upper pressure hole 20, thereby causing the swing plate 13 to rotate. The rotation of the swing plate 13 causes the inner wall of the lower pressure hole 43 to squeeze the lower pressure column 40, thereby causing the sliding frame 32 to move back and forth. The sliding frame 32 moves back and forth, causing the desktop panel located between the two side clamps 4, the upper clamping block 44 and the lower clamping plate 35 to move back and forth, thereby achieving uniform paint spraying.

[0035] The reciprocating distance of the sliding frame 32 is adaptively adjusted according to the distance between the two side splints 4. During the movement of the two side splints 4, the two push rods 15 will rotate, thereby pushing the slider 16 to move upward. The movement of the slider 16 drives the U-shaped slide bar 17 and the sliding plate 12 to move upward. The movement of the sliding plate 12 drives the electric push rod 18 to move upward, thereby causing the upper pressure column 21 to move upward. When the width of the desktop panel is long, the upper pressure column 21 is closer to the bottom end of the upper pressure hole 20, so that when the upper pressure column 21 moves, the rotation angle of the swing plate 13 is larger. When the width of the desktop panel is short, the upper pressure column 21 is close to the top end of the upper pressure hole 20, so that when the upper pressure column 21 moves, the rotation angle of the swing plate 13 is small, so that the back and forth movement range of the desktop panel can be adaptively adjusted according to the width of the desktop panel.

[0036] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any other manner. Any person skilled in the art may utilize the above disclosed technical content to modify or modify the present invention into equivalent embodiments with equivalent variations. However, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the technical content of the present invention and are based on the technical essence of the present invention shall still fall within the scope of protection of the present invention.

Claims

1. The lifting table top spraying device is characterized by: The invention comprises a U-shaped frame (1), wherein both sides of the U-shaped frame (1) are equipped with a spraying mechanism, two vertical plates (5) are installed on the inner wall of the top side of the U-shaped frame (1) through a driving mechanism, a fixed frame (6) is fixedly installed between the two vertical plates (5), a side clamping mechanism is slidably installed on the fixed frame (6), a bottom clamping mechanism is matched with the side clamping mechanism, the bottom clamping mechanism is matched with the spraying mechanism, a reciprocating mechanism is installed on the side clamping mechanism through a lifting mechanism, and the reciprocating mechanism is slidably installed on the top of the fixed frame (6).

2. The lifting table top spraying device according to claim 1, characterized in that: The spraying mechanism includes a paint storage box (11) fixedly mounted on the side of the U-shaped frame (1), a pump (10) fixedly mounted on the side of the paint storage box (11), a liquid inlet end of the pump (10) communicating with the interior of the paint storage box (11), a discharge pipe (9) fixedly mounted on the liquid outlet end of the paint storage box (11), a liquid separation box (30) fixedly mounted on one end of the discharge pipe (9) away from the pump (10) and connected to the side of the paint storage box (11), a plurality of hoses (29) connected to one side of the liquid separation box (30), and a nozzle (25) fixedly mounted on one end of each of the plurality of hoses (29) away from the liquid separation box (30).

3. The spraying device for the lifting table top according to claim 2, characterized in that: The spraying mechanism further comprises two fixed blocks (31) fixedly mounted on the sides of the U-shaped frame (1), a mounting rod (27) fixedly mounted between the two fixed blocks (31), a plurality of movable blocks (26) slidably sleeved on the mounting rod (27), the plurality of movable blocks (26) being fixedly connected to the plurality of spray heads (25) respectively, the top of the movable block (26) located at the top being fixedly connected to the bottom of the fixed block (31), a spring (28) sleeved on the mounting rod (27) being provided between each two adjacent movable blocks (26), a rectangular hole (8) being opened on the side of the U-shaped frame (1), the sides of the plurality of spray heads (25) all passing through the rectangular hole (8), an adjusting rod (7) being fixedly mounted on the bottom of the spray head (25) located at the bottom, the adjusting rod (7) comprising a horizontal portion and an inclined portion, wherein the horizontal portion is located in the U-shaped frame (1), and the inclined portion extends out of the U-shaped frame (1) and gradually tilts upward in a direction away from the U-shaped frame (1).

4. The spraying device for the lifting table top according to claim 3, characterized in that: The driving mechanism comprises T-shaped slots (2) provided on both sides of the U-shaped frame (1), a T-shaped slide plate (3) being slidably mounted in the T-shaped slots (2), the tops of the two vertical plates (5) being fixedly connected to the bottom of the T-shaped slide plate (3), a moving motor (22) being fixedly mounted on the bottom of the T-shaped slide plate (3), a transmission gear (23) being fixedly mounted on the output shaft of the moving motor (22), a rack (24) being fixedly mounted on the inner wall of the top side of the U-shaped frame (1), and the rack (24) being meshed with the transmission gear (23).

5. The lifting table top spraying device according to claim 4, characterized in that: The side clamping mechanism includes a sliding frame (32) slidably sleeved on the fixed frame (6), a driving motor (41) is fixedly installed on one side of the sliding frame (32), a bidirectional screw (42) is rotatably installed on the sliding frame (32), the threads at both ends of the bidirectional screw (42) have opposite rotation directions, the driving motor (41) is connected to the bidirectional screw (42), and both ends of the bidirectional screw (42) are threadedly sleeved with a moving block (14), and a displacement hole ( 39), the bottoms of the two moving blocks (14) are fixedly mounted with a driving plate (38) through a displacement block (33), the two displacement blocks (33) are slidably connected to the displacement hole (39), and a transverse hole (47) is provided on the adjacent side of the two driving plates (38), and a transverse rod (46) is slidably mounted in the two transverse holes (47), and both ends of the transverse rod (46) extend outside the transverse hole (47), and a side clamp (4) is fixedly mounted on the ends of the two transverse rods (46) close to each other.

6. The lifting table top spraying device according to claim 5, characterized in that: The bottom clamping mechanism includes an upper clamping block (44) fixedly mounted on the bottom of the sliding frame (32), a gear box (48) fixedly mounted on the sides of the two driving plates (38) away from each other, a vertical rod (45) mounted in each of the two gear boxes (48) through a gear assembly, a lower clamping plate (35) fixedly mounted on the bottom of the two vertical rods (45), an extrusion rod (37) fixedly mounted on the bottom of the lower clamping plate (35), an extrusion wheel (36) rotatably mounted on one end of the two extrusion rods (37) away from each other, the two extrusion wheels (36) respectively correspond to the inclined portions of the two adjusting rods (7), a guide rod (34) fixedly mounted on the bottom of the two driving plates (38), and the lower clamping plate (35) is slidably connected to the guide rod (34) on the corresponding side.

7. The lifting table top spraying device according to claim 6, characterized in that: The gear assembly includes two mounting gears (50) rotatably mounted on the inner walls on both sides of the gear box (48), the two mounting gears (50) being coaxially fixedly connected, vertical holes (51) for the vertical rod (45) to pass through are provided on the top inner wall and the bottom inner wall of the gear box (48), tooth grooves (49) are provided on the side of the vertical rod (45) and the top of the cross rod (46), and the two tooth grooves (49) are respectively engaged with the two mounting gears (50).

8. The spraying device for the desktop of a lifting table according to claim 5, characterized in that: The reciprocating mechanism comprises two limit rods (19) fixedly mounted on the bottom of the T-shaped slide (3), the bottom ends of the two limit rods (19) are fixedly connected to the fixed frame (6), a sliding plate (12) is slidably sleeved on the two limit rods (19), an electric push rod (18) is fixedly mounted on the top of the sliding plate (12), an upper pressure column (21) is fixedly mounted on the movable end of the electric push rod (18), a rotating shaft (52) is fixedly mounted on the side of the fixed frame (6), a swing plate (13) is rotatably sleeved on the rotating shaft (52), an upper pressure hole (20) and a lower pressure hole (43) are opened on the side of the T-shaped slide (3), a lower pressure column (40) is fixedly mounted on the side of the sliding frame (32), and the lower pressure column (40) and the upper pressure column (21) slide into the lower pressure hole (43) and the upper pressure hole (20) respectively.

9. The lifting table top spraying device according to claim 8, characterized in that: The lifting mechanism includes a U-shaped slide bar (17) fixedly mounted on the side of the sliding plate (12), a slider (16) being slidably sleeved on the U-shaped slide bar (17), two push rods (15) being rotatably mounted on the side of the slider (16), and the bottoms of the two push rods (15) being rotatably mounted on the sides of the two side clamping plates (4).

10. A spraying process for the lifting table top spraying device according to any one of claims 1 to 9, characterized in that: The following steps are included: Step 1: Clamp the sides of the desktop panel with the bottom clamping mechanism and the side clamping mechanism. When the bottom clamping mechanism moves, the spraying mechanism is driven to adjust accordingly so that the spraying mechanism is evenly distributed along the height direction of the desktop panel. At the same time, when the side clamping mechanism clamps the sides of the desktop panel, the reciprocating distance of the reciprocating mechanism is adjusted by the lifting mechanism. Step 2: The clamped desktop panel is driven by the driving mechanism to correspond to the spraying mechanism, and the desktop panel is sprayed reciprocally by the two spraying mechanisms.

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