Example 1
 With reference to the attached drawings, the invention provides a technical scheme: a plate painting and drying device for automobile production comprises a workbench 1, a return platform 101 is vertically fixed at the middle of one side of the workbench 1, a first conveying groove is symmetrically arranged at both sides of the top surface of the workbench 1, a second conveying groove is arranged at the middle of the top surface, and a third conveying groove is arranged at the top surface of the return platform 101, and conveying components are arranged in the first conveying groove, the second conveying groove and the third conveying groove, and the conveying components include conveying rollers 102. Two ends of the conveying rollers 102 are rotatably connected with the side walls of the corresponding conveying grooves, one end of a plurality of conveying rollers 102 is also fixed with a transmission gear 103, a plurality of transmission gears 103 are correspondingly connected through a transmission belt 104, and one of the transmission gears 103 is connected with a motor; the second conveying groove is symmetrically provided with a spacing area, and the conveying rollers 102 are evenly distributed in areas outside the spacing area, and the lateral moving assembly 4 is arranged in the spacing area;
 A painting cavity 2 is fixed in the middle of the top surface of the workbench 1, and the second conveying groove is located in the painting cavity 2, and the bottom of the side wall of the painting cavity 2 corresponding to the two first conveying grooves and the third conveying groove is provided with notches, and the side wall of the painting cavity 2 is provided with a sealing assembly at the position corresponding to the notches; the upper part of the painting cavity 2 is provided with a painting assembly; one side of the painting cavity 2 is provided with a drying cavity 3; and the top of the drying cavity 3 is provided with a drying assembly.
 The transverse moving assembly 4 comprises a lifting groove located in the interval area, in which a plurality of moving rollers 401 are uniformly arranged and rotatably connected along the length direction, wherein the moving roller 401 close to the return table 101 is connected with a motor through a pulley and a transmission belt, and the motor is fixedly connected with the lifting groove and staggered from the conveying roller 102 in the second conveying groove, the bottom ends of two side walls of the lifting groove extend downward, and a fixing plate 402 is arranged between the extending sections. The length of the fixed plate 402 is longer than that of the lifting groove, and its two ends extend out and are fixedly connected with both sides of the bottom surface of the workbench 1. The bottom of the lifting groove is fixed with a guide rod 404, the top surface of the fixed plate 402 should be fixed with a guide cylinder 405, and the bottom end of the guide rod 404 is slidably connected with the guide cylinder 405. The fixed plate 402 is symmetrically and rotationally connected with a second cam 403, the wheel surface of which contacts the bottom of the lifting groove, and the second cam 403
 The painting assembly includes a paint box 201 fixed on the top of the painting chamber 2, the bottom of the paint box 201 is connected with a painting pump 202, the upper part of the painting chamber 2 is fixed with a mounting plate 203, the middle of the bottom of the mounting plate 203 is fixed with a first main pipe 204, and the first main pipe 204 is connected with the bottom of the painting pump 202 through a pipeline, and a plurality of first branch pipes 205 are uniformly fixed on both sides of the first main pipe 204 along the length direction, and the bottom of the first branch pipes 205 are along the
 The sealing assembly includes a moving chamber 206 arranged on the inner side wall of the drying chamber 3. A motor is fixed in the moving chamber 206, and a first cam 207 is fixed on the output shaft of the motor. An L-shaped sealing plate 208 is arranged below the second cam 403, and a spring is arranged between the horizontal section of the sealing plate 208 and the bottom surface of the moving chamber 206. The vertical section is slidably connected with the side wall of the moving chamber 206, and the bottom end of the vertical section extends out of the moving chamber 206 and is correspondingly connected with the notch.
 The drying assembly includes a second main pipe 302 fixed on the top surface of the drying chamber 3, a plurality of second branch pipes 303 are uniformly fixed on both sides of the second main pipe 302 along the length direction, and a plurality of air outlets are uniformly fixed on the bottom surface of the second branch pipe 303 along the length direction, and a hot fan 301 is fixed on the top surface of the drying chamber 3, and the second main pipe 302 is connected with the hot fan 301.
 A use method of a paint spraying and drying device for plate used in automobile production includes the following steps:
 S1, loading: placing the plate on the workbench 1, and conveying the plate to the painting chamber 2 through a conveying assembly at one side;
 S2, painting: start the motor of the sealing assembly, rotate the first cam 207, press the sealing plate 208 down, close the notch of the painting chamber 2, start the painting pump 202 of the painting assembly, paint the plate through the nozzle, and after painting, start the sealing assembly again, so that the sealing plate 208 moves up, the notch is opened, and the conveying roller 102 in the second conveying groove moves the plate into the drying chamber 3 through the notch;
 S3, drying: starting the hot air blower 301 of the drying assembly, drying the painted surface of the plate through the air outlet, and conveying the plate outward through the conveying assembly after drying;
 S4, secondary painting: turn the dried plate over to the painting face down, and move it to the return table 101, with the top of the conveying roller 102 on the return table 101 slightly higher than the conveying roller 102 on the workbench 1, then start the motor of the second cam 403, so that the lifting groove drives the moving roller 401 to move up slightly, and the top of the moving roller 401 is as high as the top of the conveying roller 102 on the return table 101. The plate is moved to the transverse moving assembly 4 by the conveying assembly on the return platform 101, re-enters the painting chamber 2, and then the transverse moving assembly 4 moves down and is conveyed to the drying chamber 3 by the conveying assembly in the slot of the second conveying assembly, wherein the moving roller 401 on the transverse moving assembly 4 near the return platform 101 is connected with a motor through a transmission structure, so that the plate can be moved and separated from the conveying assembly on the return platform 101;
 S5, blanking: after the painted surface of the plate is dried, the plate is continuously conveyed outwards by the conveying assembly, and the plate is blanking.