Disclosure of Invention
The invention aims to solve the problem of poor spraying quality of the conventional automobile tail throats, and provides a spraying device for automobile tail throats production, which is convenient for keeping the height of each automobile tail throat consistent in the spraying process through an automobile tail throat positioning assembly, so that the consistency of the spraying effect is ensured; the spraying has better comprehensiveness through the automobile tail throat rotating assembly; it is more even to be convenient for spray paint through lift spraying assembly, and is more comprehensive, promotes whole paint spraying quality.
For the purpose of the invention, the following technical scheme is adopted for realizing the purpose: a spraying device for producing an automobile tail throat comprises a spraying box, an automobile tail throat positioning assembly, an automobile tail throat rotating assembly and a lifting spraying assembly; the spraying box is provided with a spraying channel for a chain to pass through, and the automobile tail throat positioning assembly is arranged at the top of the spraying box and used for positioning the automobile tail throat conveyed into the spraying channel; the automobile tail throat rotating assembly is positioned on the front side of the spraying box and used for rotating the automobile tail throat conveyed into the spraying box during spraying; the lifting spraying component is located on the front side of the spraying box and above the automobile tail throat rotating component, and the lifting spraying component is used for spraying and machining the automobile tail throat rotating in the spraying box.
Preferably, the automobile tail throat positioning assembly comprises an automobile tail throat positioning frame and an automobile tail throat positioning cylinder, the automobile tail throat positioning frame is arranged at the top of the spraying box, the automobile tail throat positioning cylinder is arranged on the automobile tail throat positioning frame, the automobile tail throat positioning cylinder penetrates through the automobile tail throat positioning frame and is connected with a positioning pressing plate, and the positioning pressing plate penetrates through the spraying box and is located in the spraying box.
Preferably, the automobile tail throat rotating assembly comprises an automobile tail throat rotating bracket, an automobile tail throat rotating driving motor, an automobile tail throat rotating driving gear and an automobile tail throat rotating driving chain; the automobile tail throat rotating support is arranged on the rack, the automobile tail throat rotating driving motor is arranged at the middle bottom of the automobile tail throat rotating support, the automobile tail throat rotating driving motor penetrates through the automobile tail throat rotating support to be connected with the automobile tail throat rotating driving gear, and the automobile tail throat rotating driving gear is matched with the automobile tail throat rotating driving chain.
Preferably, the left side and the right side of the automobile tail throat positioning frame are also provided with rotary auxiliary guide wheels, and the inner side of the automobile tail throat rotary driving chain is connected to the rotary auxiliary guide wheels and the automobile tail throat rotary driving gear in a tensioning mode.
Preferably, a chain positioning support is arranged on the rear side of the middle of the automobile tail throat positioning frame, and the rear side of the automobile tail throat rotation driving chain is positioned on the chain positioning support.
Preferably, the lifting spraying assembly comprises a lifting spraying bracket, a lifting driving motor, a gear conveyer belt group, a lifting rotating shaft, a lifting moving plate and a spray gun; the lifting spraying support is arranged on the rack, the lifting driving motor is arranged at the top of the lifting spraying support, one end of the gear conveyer belt group is connected with the lifting driving motor, the other end of the gear conveyer belt group is connected with the lifting rotating shaft, the lifting moving plate is arranged on the lifting rotating shaft through a shaft sleeve and matched with the lifting rotating shaft to realize lifting, and the spray gun is arranged on the lifting moving plate through the spray gun support.
Preferably, a baffle plate is further arranged on the spraying box and above the automobile tail throat rotating assembly.
A spraying method for an automobile tail throat sequentially comprises the following steps: the automobile tail throat positioning cylinder drives the positioning pressing plate to descend, so that the top of the automobile tail throats conveyed into the spraying box is flattened, a plurality of automobile tail throats are enabled to keep the same height and can be stably and flatly sleeved on the supporting shaft, the automobile tail throat rotating driving motor drives the automobile tail throat rotating driving gear to rotate, the automobile tail throat rotating driving gear drives the automobile tail throat driving chain to circularly rotate, and the automobile tail throat driving chain is matched with each chain gear entering the spraying box to drive the automobile tail throats on the supporting shaft on the chain gear to rotate; the gear conveyer belt set is driven to rotate by the lifting driving motor, so that the lifting rotating shaft drives the spray gun on the lifting moving plate to move up and down, and the spray paint is uniformly sprayed to the tail throat of the automobile.
A kind of car tail throat spraying apparatus, this apparatus includes the feed arrangement, conveying appliance, preheating unit, first spraying apparatus, first heating blast apparatus, second spraying apparatus, second heating blast apparatus and blanking apparatus on the stander and; the first spray coating device is as described above.
According to the spraying device for producing the automobile tail throats, the multiple automobile tail throats are kept at the same height through the automobile tail throat positioning assembly and can be stably and flatly sleeved on the supporting shaft, and therefore each spraying is uniform and consistent in the spraying process; the tail throat rotating assembly of the automobile is convenient to drive the tail throat of the automobile entering the spraying box to rotate by a motor, so that the spraying is more comprehensive; be convenient for through the lift spraying subassembly spray paint evenly spout to whole automobile tail larynx on, make the spray paint more even on the whole automobile tail larynx, more comprehensive, promote whole paint spraying quality.
The equipment is also convenient for orderly feeding the plurality of automobile throats through the feeding device, and the feeding of the plurality of automobile throats is convenient to be carried out stably and orderly one by one through the matching of the feeding limiting cylinder and the feeding positioning cylinder, so that the stability and the smoothness of feeding are improved; the conveying device solves the problems that a group of automobile tail throats are placed on the spraying machine by a mechanical arm or a manual work, and are taken down after spraying, and the feeding and the discharging are repeated in such a way; the automobile tail throat is sleeved on the supporting shaft and conveyed along with the chain, so that the conveying smoothness and stability are improved, the automobile tail throat is not required to be repeatedly charged and discharged, the conveying device is not required to be repeatedly stopped and started, the conveying continuity of the whole production line is improved, and the conveying efficiency of the automobile tail throat is further improved; the preheating device solves the problem that the prior equipment is not provided with a preheating device, and the spray paint is not easy to spray on the tail throat of the automobile before spraying; through second heating blast apparatus and first heating blast apparatus solved and be difficult to make after the spraying and spray paint and consolidate rapidly to the car tail larynx on, influence the problem of car tail larynx spraying quality.
To sum up, the advantage of this patent is that promote car tail larynx spraying's comprehensiveness and homogeneity, promotes the whole smoothness nature of spraying of car tail larynx.
Detailed Description
The following describes a detailed embodiment of the present invention with reference to the accompanying drawings.
As shown in fig. 1, an automobile tail throat spraying device comprises a frame, and a feeding device 1, a conveying device 2, a preheating device 3, a first spraying device 4, a first heating and blowing device 5, a second spraying device 6, a second heating and blowing device 7 and a blanking device 8 which are arranged on the frame; the feeding device 1, the preheating device 3, the first spraying device 4, the first heating and blowing device 5, the second spraying device 6, the second heating and blowing device 7 and the blanking device 8 are sequentially arranged along the feeding direction and the discharging direction; the feeding device 1 is used for conveying the tail throat of the automobile to the conveying device 2; the conveying device 2 is used for conveying the tail throat of the automobile; the preheating device 3 is used for primarily heating the tail throat of the automobile, and the preheating device 3 comprises a preheating box 31, a preheating wire and a preheating blower 33; the preheating box 31 is provided with a preheating passage 32 for passing the chain 21 therethrough, the preheating wire is disposed in the preheating box 31, and a preheating blower 33 is disposed at the rear of the preheating box 31 and communicates with the preheating box 31. The preheating device 3 solves the problem that the existing equipment is not provided with a preheating device and is not easy to spray paint to the tail throat of the automobile before spraying. The first spray device 4 is used to spray the spray paint onto the tail throat of the vehicle. The first heating and blowing device 5 is used for reinforcing the painting on the tail throat of the automobile, and the first heating and blowing device 5 comprises a heating box 51, a blower 52, a plurality of ventilation pipes 53 and a heating cover 54; the heating box 51 is positioned at the bottom of the left side of the frame, the blower 52 is arranged at the upper part of the heating box 51, and the air blowing port of the blower 52 is communicated with the heating box 51; the heating cover 54 is arranged at the upper part of the left side of the frame, and the heating cover 54 is provided with a heating conveying channel for conveying the tail throat of the automobile; a plurality of ventilation pipes 53 are arranged side by side, and the lower end of each ventilation pipe 53 is communicated with the heating box 51, and the upper end of each ventilation pipe 53 is communicated with the heating cover 54. The second spraying device 6 is used for spraying paint for the automobile tail throat for the second time, and the second spraying device 6 is the same as the first spraying device 4 in structure and is arranged in central symmetry. The second heating and blowing device 7 is used for reinforcing secondary paint spraying on the tail throat of the automobile, the second heating and blowing device 7 is identical to the first heating and blowing device 5 in structure and symmetrically arranged, and the problem that paint spraying is not easily enabled to be rapidly reinforced on the tail throat of the automobile after spraying to influence the spraying quality of the tail throat of the automobile is solved through the second heating and blowing device 7 and the first heating and blowing device 5. The blanking device 8 is used for blanking the sprayed automobile tail throat, a blanking channel 81 is arranged on the rack, and the blanked automobile tail throat is grabbed and conveyed into the blanking channel by the blanking device 8 through a blanking manipulator.
As shown in fig. 2, the automobile tail throat 9 required by the invention is sprayed, the automobile tail throat 9 is hollow and cylindrical, the automobile tail throat 9, commonly called as an exhaust pipe sleeve, has various colors, the automobile tail throat 9 is sleeved on the conveying device 2 for conveying in the spraying process, and then the paint required to be sprayed is sprayed on the surface of the automobile tail throat 9 by the first spraying device 4, so that the automobile tail throat 9 can play a good role in decoration, and the integral attractiveness of an automobile is improved.
As shown in fig. 1 and fig. 3, the feeding device 1 includes a feeding track 11, an arc joining channel 12, a feeding support 13, a feeding positioning cylinder 14 and a feeding limiting cylinder 15; the feed end of feed track 11 links up with car tail larynx vibrations dish, through car tail larynx vibrations dish with the orderly continuation of a plurality of car tail throats 9 to carrying to feed track 11 on. The feed end that the arc links up passageway 12 links up with the discharge end of feeding track 11, and arc links up passageway 12 and is convenient for make car tail larynx 9 by the very smooth change vertical transport that becomes of horizontal transport, changes the direction of delivery of car tail larynx 9 and makes better falling into to conveyor 2 of car tail larynx 9 on, promotes the smoothness nature of carrying and the connectivity of carrying. The feeding support 13 is arranged on the frame, a feeding hole 130 is formed in the rear portion of the feeding support 13, and the vertically conveyed automobile tail throat 9 can conveniently fall onto the conveying device 2 through the feeding hole 130. A feeding positioning frame 131 is arranged at the top of the feeding support 13, and a first positioning block 132 and a second positioning block 133 are arranged on the feeding positioning frame 131; first locating piece 132 and second locating piece 133 symmetry set up, and first locating piece 132 and second locating piece 133 all are provided with the semicircle recess 134 that the car tail larynx matches, be convenient for make the car tail larynx 9 of vertical whereabouts fix a position through first locating piece 132 and second locating piece 133, make car tail larynx 9 pass through from two semicircle recesses 134, thereby make falling into to conveyor 2 on that car tail larynx 9 can be accurate, prevent to incline when falling, thereby lead to blocking midway. The feeding positioning cylinder 14 is arranged on the feeding support 13 through a feeding positioning frame 141, the feeding positioning cylinder 14 is provided with two feeding positioning clamping jaws 142, the two feeding positioning clamping jaws 142 are provided with feeding positioning clamping openings 143, and the two feeding positioning clamping jaws 142 penetrate through two sides of the lower part of the arc-shaped joining channel 12 and are positioned in the arc-shaped joining channel 12; the automobile tail throats 9 are further positioned and clamped tightly through the feeding positioning air cylinder 14, so that the automobile tail throats 9 can be sequentially fed one by one, and the plurality of automobile tail throats 9 are prevented from falling down all at one time; the position of the vehicle throat 9 is also further ensured by the feed positioning cylinder 14, preventing it from tilting or jamming in the fall on the curved joining channel 12. The feeding limiting cylinder 15 is arranged on the feeding support 13 and located below the feeding positioning frame 141, the moving portion of the feeding limiting cylinder 15 is provided with a limiting baffle 151, the limiting baffle 151 is located above the feeding port 130, and the feeding limiting cylinder 15 is used for facilitating orderly conveying of the automobile tail throats 9 one by one.
During operation, shake the dish with car tail larynx 9 orderly transport to feeding track 11 and carry to arc linking passageway 12 in through car tail larynx, make car tail larynx drop into between first locating piece 132 and the second locating piece 133 and carry to conveyor 2 through feed inlet 130 in arc linking passageway 12 on, press from both sides the second tightly through feeding positioning cylinder 14, drive limit baffle 151 and block car tail larynx 9 through feeding spacing cylinder 15 and prevent the whereabouts.
Be convenient for carry out orderly the material loading of carrying on a plurality of automobile exhaust throats 9 through feed arrangement 1 to cooperate through the spacing cylinder 15 of feeding and feeding location cylinder 14 and be convenient for make a plurality of automobile exhaust throats 9 stable orderly carry out the material loading one by one, promote the stability and the smoothness nature of material loading.
As shown in fig. 1 and 4, the conveying device 2 includes a chain 21, a plurality of automobile throat supporting assemblies, a chain driving assembly and three chain guiding assemblies; each automobile tail throat supporting component comprises a chain seat 221, a supporting shaft 222 and an automobile tail throat supporting plate 223; the chain seat 221 is disposed on the top of one of the chain pins 210 of the chain 21 through a bearing, and is rotatable on the chain 21 through the chain pin 210, so that the chain seat 221 is rotatable on the chain pin 210. The chain support shaft 222 is provided with a chain gear 2211 at the upper part of the seat 221, and the chain gear 2211 is matched with the first spraying device 4 so as to drive the chain gear 2211 to rotate. The support shaft 222 is arranged on the chain seat 221, the diameter of the support shaft 222 is gradually reduced from the middle to the top, when the automobile tail throat 9 falls from top to bottom, the automobile tail throat 9 is sleeved on the support shaft 222, the diameter of the top of the support shaft 222 is smaller, so that the automobile tail throat 9 is sleeved, and collision between the automobile tail throat 9 and the support shaft 222 in the falling process is prevented. The automobile tail throat supporting plate 223 is sleeved on the lower portion of the supporting shaft 222, the diameter of the automobile tail throat supporting plate 223 is larger than that of the bottom of the supporting shaft 222, so that the automobile tail throat 9 is better supported on the automobile tail throat supporting plate 223, and the stability of the automobile tail throat 9 is improved. Chain drive subassembly and three chain guide subassembly are the rectangle and arrange, the chain drive subassembly includes chain drive motor 231 and chain drive fluted disc 232, chain drive motor 231 sets up the right back side bottom in the frame, the pivot of chain drive motor 231 passes the frame to be connected with chain drive fluted disc 232, chain drive fluted disc 232 level sets up and cooperatees with chain 21, every chain guide subassembly includes chain direction pivot 241 and chain direction fluted disc 242, chain direction pivot 241 passes through the direction bearing and sets up in the frame, chain direction pivot 241 upper end is passed the frame and is connected with chain direction fluted disc 242, and chain direction fluted disc 242 level sets up, chain 21 cooperatees with every chain direction fluted disc 242, make chain 21 be the rectangle circular transport in the frame.
During operation, it is rotatory to drive chain drive fluted disc 232 through chain drive motor 231 on the chain drive subassembly, cooperatees with chain direction fluted disc 242 through chain 21 and chain drive fluted disc 232, carries out the circulation and carries to automobile tail larynx 9 on the messenger's chain 21 last supporting axle 222 carries out orderly transport.
The conveying device 2 solves the problems that a group of automobile tail throats are placed on the spraying machine through a mechanical arm or a manual work, and are taken down after spraying, and the feeding and the discharging are repeated in such a way; carry along with chain 21 on the back shaft 222 through establishing automobile tail throat 9 cover, promote the smoothness nature and the stability of carrying to need not to relapse with automobile tail throat last unloading, also need not to stop conveyor repeatedly and start, promote the transport continuity of whole production line, still further promote automobile tail throat 9's conveying efficiency simultaneously.
As shown in fig. 1 and 5, the first painting device 4 includes a painting booth 41, an automobile throat positioning assembly, an automobile throat rotating assembly, and a lifting painting assembly; the spraying box 41 is provided with a spraying channel 411 for a chain to pass through, and an automobile tail throat positioning assembly is arranged at the top of the spraying box 41 and used for positioning an automobile tail throat conveyed into the spraying channel 411; the automobile tail throat rotating assembly is positioned on the front side of the spraying box 41 and used for rotating the automobile tail throat conveyed to enter in the spraying process; the lifting spraying assembly is located on the front side of the spraying box 41 and above the automobile tail throat rotating assembly, and the lifting spraying assembly is used for spraying and machining the automobile tail throat rotating in the spraying box 41.
Automobile tail larynx positioning component includes automobile tail larynx locating rack 421 and automobile tail larynx locating cylinder 422, automobile tail larynx locating rack 421 sets up the top at spraying case 41, automobile tail larynx locating cylinder 422 sets up on automobile tail larynx locating rack 421, automobile tail larynx locating cylinder 422 passes automobile tail larynx locating rack 421 and is connected with positioning press plate 423, positioning press plate 423 passes spraying case 41, and be located spraying case 41, it goes up and down to drive positioning press plate 423 through automobile tail larynx locating cylinder 422, thereby flatten the top of automobile tail larynx 9 of carrying to spraying case 41, make a plurality of automobile tail throats 9 keep same height and make its cover that can stabilize and level establish on back shaft 222, thereby the spraying in-process makes every spraying even, keep the uniformity.
The automobile tail throat rotating assembly comprises an automobile tail throat rotating bracket 431, an automobile tail throat rotating driving motor 432, an automobile tail throat rotating driving gear 433 and an automobile tail throat rotating driving chain 434; the automobile tail throat rotating support 431 is arranged on the rack, the automobile tail throat rotating driving motor 432 is arranged at the middle bottom of the automobile tail throat rotating support 431, the automobile tail throat rotating driving motor 432 penetrates through the automobile tail throat rotating support 431 to be connected with the automobile tail throat rotating driving gear 433, and the automobile tail throat rotating driving motor 432 drives the automobile tail throat rotating driving gear 433 to rotate. The automobile tail throat rotary driving gear 433 is matched with the automobile tail throat rotary driving chain 434, and the automobile tail throat rotary driving gear 433 drives the automobile tail throat driving chain 434 to rotate circularly. The left side portion and the right side portion of the automobile throat positioning frame 421 are further provided with auxiliary rotating guide wheels 4211, the inner side of the automobile throat rotating driving chain 434 is connected to the auxiliary rotating guide wheels 4211 and the automobile throat rotating driving gear 433 in a tensioning mode, the automobile throat rotating driving chain 434 can rotate better through the auxiliary rotating guide wheels 4211, and rotating stability and smoothness are improved. The outer side of the rear part of the automobile throat rotating driving chain 434 is matched with a chain gear 2211, the automobile throat rotating driving chain 434 drives each chain gear 2211 entering the spraying box 41 to be matched with each other in a rotating manner, and the chain gears 2211 are driven to rotate during spraying, so that the sprayed paint is uniformly sprayed to the automobile throat 9. The middle rear side that is located car tail throat locating rack 421 is provided with chain locating support 4212, and car tail throat rotation drive chain 434 rear side is located chain locating support 4212, is convenient for make chain gear 2211 and car tail throat rotation drive chain 434 laminating inseparabler when rotating through chain locating support 4212, prevents that car tail throat rotation drive chain 434 and chain gear 2211 from breaking away, can't drive car tail throat 9 rotatory. A baffle plate 410 is further arranged above the automobile tail throat rotating assembly on the spraying box 41, and the spray paint is prevented from being sprayed onto the automobile tail throat rotating assembly when the spray paint is sprayed through the baffle plate 410.
The lifting spraying assembly comprises a lifting spraying bracket 441, a lifting driving motor 442, a gear conveyer belt group 443, a lifting rotating shaft 444, a lifting moving plate 445 and a spray gun 446; the lifting spraying bracket 441 is arranged on the frame, the lifting driving motor 442 is arranged at the top of the lifting spraying bracket 441, one end of the gear conveyer group 443 is connected with the lifting driving motor 442, the other end of the gear conveyer group 443 is connected with the lifting rotating shaft 444, the lifting moving plate 445 is sleeved on the lifting rotating shaft 444 through a shaft, the lifting moving plate 445 is matched with the lifting rotating shaft 444 to realize lifting, and the spray gun 446 is arranged on the lifting moving plate 445 through the spray gun bracket. The gear conveyer belt group 443 is driven to rotate by the lifting driving motor 442, so that the lifting rotating shaft 444 drives the spray gun 446 on the lifting moving plate 445 to move up and down, the spray paint can be uniformly sprayed to the whole automobile tail throat 9 when the lifting rotating shaft 444 rotates, the spray paint on the whole automobile tail throat 9 is more uniform, and the spray paint quality is improved.
Still be connected with breather pipe 61 between 6 structures of second spraying device and the first spraying device 4, the branch connection vacuum pump at the middle part of breather pipe 61 is convenient for make car tail larynx 9 keep vacuum state in the spraying process through the vacuum pump, further ensures the spraying quality, also prevents that some impurity from attaching to car tail larynx, promotes the smoothness nature of car tail larynx 9 spraying rear surface.
During operation, the automobile throat positioning cylinder 422 on the first spraying device 4 drives the positioning pressing plate 423 to descend, so that the top of the automobile throat 9 conveyed into the spraying box 41 is flattened, a plurality of automobile throats 9 are kept at the same height and can be stably and flatly sleeved on the support shaft 222, the automobile throat rotating driving motor 432 drives the automobile throat rotating driving gear 433 to rotate, so that the automobile throat rotating driving gear 433 drives the automobile throat driving chain 434 to rotate circularly, and the automobile throat driving chain 434 is matched with each chain gear 2211 entering into the spraying box 41 to drive the automobile throat 9 on the chain gear 2211 to rotate; the gear conveyer belt group 443 is driven to rotate by the lifting driving motor 442, so that the lifting rotating shaft 444 drives the spray gun 446 on the lifting moving plate 445 to move up and down, and the spray paint is uniformly sprayed to the tail throat 9 of the automobile.
The automobile tail throats 9 are enabled to keep the same height through the automobile tail throat positioning assembly on the first spraying device 4, and can be stably and flatly sleeved on the support shaft 222, so that each spraying is uniform in the spraying process, and consistency is kept; the tail throat rotating assembly of the automobile is convenient to drive the tail throat 9 of the automobile entering the spraying box 41 to rotate by a motor, so that the spraying is better in comprehensiveness; be convenient for through the lift spraying subassembly spray paint evenly spout to whole automobile tail larynx 9 on, make the spray paint more even on the whole automobile tail larynx 9, more comprehensive, promote whole paint spraying quality.
The use method of the automobile tail throat spraying equipment sequentially comprises the following steps:
feeding: sequentially conveying the automobile tail throat 9 to a feeding track 11 on a feeding device 1 through an automobile tail throat vibration disc and conveying the automobile tail throat 9 into an arc-shaped connecting channel 12, so that the automobile tail throat falls between a first positioning block 132 and a second positioning block 133 through the arc-shaped connecting channel 12 and is conveyed to a conveying device 2 through a feeding hole 130;
(II) conveying and preheating: the chain drive motor 231 on the chain drive assembly on the conveying device 2 drives the chain drive fluted disc 232 to rotate, and the chain 21 and the chain drive fluted disc 232 are matched with the chain guide fluted disc 242 to carry out circulating conveying, so that the automobile tail throat 9 on the support shaft 222 on the chain 21 is orderly conveyed; carrying out a preheating operation by a preheating device 3;
(III) primary paint spraying: the automobile tail throat positioning cylinder 422 on the first spraying device 4 drives the positioning pressing plate 423 to descend, so that the top of the automobile tail throats 9 conveyed into the spraying box 41 is flattened, a plurality of automobile tail throats 9 are kept at the same height and can be stably and flatly sleeved on the supporting shaft 222, the automobile tail throat rotary driving motor 432 drives the automobile tail throat rotary driving gear 433 to rotate, the automobile tail throat rotary driving gear 433 drives the automobile tail throat driving chain 434 to rotate circularly, and the automobile tail throat driving chain 434 is matched with each chain gear 2211 entering into the spraying box 41 to drive the automobile tail throats 9 on the supporting shaft 222 on the chain gears 2211 to rotate; the gear conveyer belt group 443 is driven to rotate by the lifting driving motor 442, so that the lifting rotating shaft 444 drives the spray gun 446 on the lifting moving plate 445 to move up and down, and the spray paint is uniformly sprayed to the tail throat 9 of the automobile;
(IV) heating for one time: the hot air enters a heating cover 54 through a plurality of ventilation pipes 53 by matching a heating box 51 on a first heating and blowing device 5 with a blower 52, and heats the painted automobile tail throat 9 in the heating cover 54;
(V) secondary spray painting heating: the second paint spraying and heating are carried out through the same working mode as the first spraying device 4 and the first heating and blowing device 5;
(VI) blanking: the blanking device 8 grabs and conveys the sprayed automobile tail throat 9 into a blanking channel through a blanking manipulator.