Paint spraying assembly line
By introducing a runway-shaped conveyor track and transfer vehicles into the paint spraying line, the problem of forklift loading and unloading between multiple paint spraying rooms was solved, the regional design and efficient management of the paint spraying line were realized, and work efficiency was improved.
Patent Information
- Application Number
- CN202421983289.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-08-15
AI Technical Summary
In existing woodworking machine tool spray painting lines, forklifts need to repeatedly load and unload materials between multiple spray painting rooms, which makes entry and exit inconvenient, consumes a lot of manpower and has low work efficiency.
A painting assembly line is designed, including a painting area, a runway-shaped conveyor track, a loading and unloading area, a transfer area, and an air-drying area. A transfer transition vehicle and a support vehicle reciprocate on the conveyor track, and switch between the paint room guide rail and the transfer vehicle guide rail via support rollers to achieve an assembly line design and reduce the use of forklifts in the painting area.
It realizes regional management of the paint spraying line, reduces manpower, improves work efficiency, and each process is independent and does not affect each other, which facilitates management and intermittent transportation.
Smart Images
Figure CN223440207U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field technology of spraying paint, especially to a paint spraying assembly line. BACKGROUND
[0002] The object of woodworking machine tool processing is wood. Wood is the earliest raw material discovered and utilized by human beings, and is closely related to human living, moving and using. Human beings have accumulated rich wood processing experience in long-term practice. Woodworking machine tools have been developed through long-term production practice, continuous discovery, continuous exploration and continuous creation. Wooden furniture refers to furniture made of wooden materials. According to its structure, it can be divided into two categories: frame type furniture and plate type furniture. The structure of typical frame type furniture is mortise and tenon structure, and the material is natural solid wood board and square material, such as mahogany furniture, Ming style furniture, Qing style furniture, solid wood dining table and chair, etc. Typical plate type furniture refers to furniture made of artificial plate as material, and connected by connecting piece, round tenon and other ways.
[0003] At present, the machining center for processing plate on the production line mainly includes a rack, a movable cross beam and a machining head; the rack has a workbench extending longitudinally, and a positioning stop is arranged on the workbench; the movable cross beam is arranged on the rack and can move longitudinally back and forth, and a transverse slide is arranged on the movable cross beam and can move transversely back and forth; the machining head is arranged on the transverse slide, and is used for cutting, drilling and slotting of the plate. Among them, the rack needs to be surface painted during use, and several processes such as cleaning, batching, polishing, spraying paint and air drying are needed during painting. Therefore, several paint spraying rooms are arranged for these processes, and the rack is sent into and out of the paint spraying room by a forklift, and is transferred between the paint spraying rooms by the forklift. This way is not convenient for the forklift to enter and exit, and the forklift needs to be repeatedly loaded and unloaded and transported between the paint spraying rooms, which is not convenient for loading and unloading, and a large amount of labor is needed, and the work efficiency is low.
[0004] Therefore, it is necessary to research a new technology to solve the above problems. UTILITY MODEL CONTENT
[0005] Therefore, the utility model provides a paint spraying assembly line, which realizes the assembly line design of paint spraying, reduces manual work and improves work efficiency.
[0006] To achieve the above purpose, the utility model adopts the following technical scheme:
[0007] A paint spraying pipeline comprises a paint spraying area and a runway-shaped conveying track located at one side of the paint spraying area; the conveying track has a loading and unloading area, a transfer area and a drying area, the transfer area is located at one side of the paint spraying area, and the loading and unloading area and the drying area are located at the side of the transfer area away from the paint spraying area, and the loading and unloading area and the drying area are arranged side by side.
[0008] The paint spraying area is provided with a paint house guide rail, one end of the paint house guide rail is connected to the transfer area.
[0009] The conveying track is provided with a transfer transition vehicle, the transfer transition vehicle can move on the conveying track, the transfer transition vehicle is provided with a transition vehicle guide rail, the transition vehicle guide rail is connected to or separated from the paint house guide rail with the movement of the transfer transition vehicle, the transfer transition vehicle is provided with a support vehicle for carrying the workpiece to be sprayed, and the support vehicle comprises a support frame and a support roller arranged at the bottom of the support frame, and the support roller can be selectively fitted on the transition vehicle guide rail or the paint house guide rail.
[0010] As a preferred scheme, the paint spraying area comprises a cleaning house, a batching house, a polishing house, a first paint spraying house, a second paint spraying house and a third paint spraying house arranged in sequence from left to right, the import and export of the cleaning house, the batching house, the polishing house, the first paint spraying house, the second paint spraying house and the third paint spraying house are connected to the transfer area, and the cleaning house, the batching house, the polishing house, the first paint spraying house, the second paint spraying house and the third paint spraying house are all provided with the paint house guide rail.
[0011] As a preferred scheme, the conveying track comprises two sections of transition vehicle conveying guide rails and two sections of transition vehicle rotation guide rails, the transition vehicle conveying guide rails extend in a straight line, the transition vehicle rotation guide rails extend in an arc shape, the two sections of transition vehicle conveying guide rails are arranged in a symmetrical manner in front and back, the two sections of transition vehicle rotation guide rails are arranged in a symmetrical manner in left and right, the two ends of the transition vehicle conveying guide rails are connected to the two sections of transition vehicle rotation guide rails respectively, the transition vehicle conveying guide rail located at the rear side is provided with the transfer area, the transition vehicle conveying guide rail located at the front side is provided with the loading and unloading area and the drying area, the paint house guide rail extends in the front-rear direction, and the front end of the paint house guide rail is located at the rear side of the transition vehicle conveying guide rail located at the rear side.
[0012] As a preferred scheme, the inner side of the conveying track is provided with two sections of support vehicle conveying guide rails, the two sections of support vehicle conveying guide rails are arranged in a symmetrical manner in left and right, the support vehicle conveying guide rails are located at the inner side of the corresponding transition vehicle rotation guide rails, the support vehicle conveying guide rails extend in the front-rear direction, and the support roller can be selectively fitted on the support vehicle conveying guide rail.
[0013] As a preferred scheme, the inner side of the conveying track is provided with a spacing wall extending along the left-right direction, and the left and right ends of the spacing wall are both provided with a letting passage, and the support vehicle conveying guide rail passes through the corresponding letting passage.
[0014] As a preferred scheme, the transfer transition vehicle is provided with at least six, and the support vehicle is provided with at least six.
[0015] As a preferred scheme, the transfer transition vehicle includes a plurality of connecting rods, a plurality of transition vehicle rollers and two transition vehicle guide rails, the connecting rods are arranged in sequence along the front-rear direction with uniform spacing, the connecting rods extend along the left-right direction, the two transition vehicle guide rails are arranged with left-right symmetry, the transition vehicle guide rails extend along the front-rear direction, the connecting rods are arranged between the two transition vehicle guide rails, the left and right ends of the connecting rods are connected to the two transition vehicle guide rails respectively, and the bottom of the two transition vehicle guide rails is provided with the transition vehicle rollers at the front and rear ends, and the transition vehicle rollers are rollably adapted to the conveying track.
[0016] The utility model has obvious advantages and beneficial effects compared with the prior art. Specifically, it can be seen from the above technical scheme that it is mainly achieved by arranging a runway-shaped conveying track on one side of the paint spraying area, and making the conveying track have a loading and unloading area, a transfer area and an air-drying area. The transfer area is located on one side of the paint spraying area, and the loading and unloading area and the air-drying area are arranged side by side on the left and right. In this way, it can realize regional design, which is more conducive to management and clear distinction of work areas. A paint room guide rail is provided in the paint spraying area, and a transfer transition car is provided on the conveying track. The transfer transition car is provided with a transition car guide rail, so that the transition car guide rail is connected or detached from the paint room guide rail as the transfer transition car moves, and a support car for carrying workpieces to be painted is provided on the transfer transition car, and the support car includes a support frame and a support roller, so that the support roller can be selectively adapted to the transition car guide rail or the paint room guide rail. In this way, the transfer transition car can reciprocate in the paint spraying area on the runway-shaped conveying track, thereby carrying the workpieces to be painted. The support vehicle reciprocates in the painting area under the transportation of the transfer transition vehicle, and the support vehicle carrying the workpiece to be painted can roll from the transition vehicle guide rail into the paint room guide rail in the painting area through the support rollers to complete the feeding. In this way, the assembly line design of painting is realized, and the forklift only needs to be used in the loading and unloading area. There is no need to use a forklift to enter and exit the painting area, which reduces labor and improves work efficiency. In addition, the painting area is designed to include a cleaning room, a plastering room, a grinding room, a first painting room, a second painting room, and a third painting room arranged from left to right, so that each process can be clearly distinguished, and each room can set up a separate process independently without affecting each other, which can improve the work efficiency of each painting room and is more convenient for management. In combination with the runway-shaped conveying track, the transfer transition vehicle and the support vehicle, the transfer transition vehicle can be intermittently parked between each room, which is more conducive to the coordination between the transfer transition vehicle and rooms with different working hours, thereby achieving the purpose of intermittent transportation.
[0017] In order to more clearly illustrate the structural features, technical means and specific purposes and functions achieved by the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0019] Figure 2 It is a partial structural perspective diagram of an embodiment of the present utility model;
[0020] Figure 3 This is a three-dimensional schematic diagram of a transfer vehicle according to an embodiment of the present utility model;
[0021] Figure 4 It is a three-dimensional schematic diagram of a support vehicle according to an embodiment of the present utility model;
[0022] Figure 5 is another angle perspective view of the support vehicle of the embodiment of the utility model;
[0023] Figure 6 is a perspective view of the support vehicle conveying guide rail of the embodiment of the utility model.
[0024] Explanation of the drawing mark:
[0025] 10, the loading and unloading area 20, the transfer area
[0026] 30, the air-drying area 40, the paint house guide rail
[0027] 50, the transfer transition vehicle 51, the transition vehicle guide rail
[0028] 52, the connecting rod 53, the transition vehicle roller
[0029] 54, the positioning pin 60, the support vehicle
[0030] 61, the support frame 62, the support roller
[0031] 1, the cleaning house
[0032] 2, the batch ash house 3, the polishing house
[0033] 4, the first paint spraying house 5, the second paint spraying house
[0034] 6, the third paint spraying house 7, the transition vehicle conveying guide rail
[0035] 8, the transition vehicle rotary guide rail 9, the support vehicle conveying guide rail
[0036] 11, the interval wall 12, the give-way passage
[0037] 13, the positioning hole. Specific embodiment
[0038] Please refer to Figures 1 to 6 It shows the specific structure of the embodiment of the utility model.
[0039] A paint spraying assembly line comprises a paint spraying area and a runway-shaped conveying track located at one side of the paint spraying area; the conveying track has an upper and lower loading area 10, a transfer area 20 and a drying area 30, the transfer area 20 is located at one side of the paint spraying area, the upper and lower loading area 10 and the drying area 30 are located at the side of the transfer area 20 away from the paint spraying area, and the upper and lower loading area 10 and the drying area 30 are arranged side by side; a paint house guide rail 40 is arranged in the paint spraying area, one end of the paint house guide rail 40 is connected to the transfer area 20; the paint spraying area comprises, from left to right, a cleaning room 1, a batching room 2, a polishing room 3, a first paint spraying room 4, a second paint spraying room 5 and a third paint spraying room 6, the entrances and exits of the cleaning room 1, the batching room 2, the polishing room 3, the first paint spraying room 4, the second paint spraying room 5 and the third paint spraying room 6 are connected to the transfer area 20, and the paint house guide rail 40 is arranged in the cleaning room 1, the batching room 2, the polishing room 3, the first paint spraying room 4, the second paint spraying room 5 and the third paint spraying room 6.
[0040] A transfer transition vehicle 50 is arranged on the conveying track, the transfer transition vehicle 50 can move on the conveying track, a transition vehicle guide rail 51 is arranged on the transfer transition vehicle 50, the transition vehicle guide rail 51 is connected to or disconnected from the paint house guide rail 40 with the movement of the transfer transition vehicle 50, a support vehicle 60 for carrying workpieces to be sprayed is arranged on the transfer transition vehicle 50, the support vehicle 60 comprises a support frame 61 and support rollers 62 arranged at the bottom of the support frame 61, and the support rollers 62 can be selectively fitted on the transition vehicle guide rail 51 or the paint house guide rail 40. The transfer transition vehicle 50 is provided with at least six, and correspondingly, the support vehicle 60 is provided with at least six to match the use of the six rooms in the paint spraying area. In this way, the transfer transition vehicle 50 can reciprocate on the runway-shaped conveying track to the paint spraying area, so that the support vehicle 60 carrying the workpieces to be sprayed reciprocates in the paint spraying area under the transportation of the transfer transition vehicle 50, and the support vehicle 60 carrying the workpieces to be sprayed can complete the feeding by rolling from the transition vehicle guide rail 51 to the paint house guide rail 40 in the paint spraying area through the support rollers 62. Thus, the paint spraying assembly line is realized, the forklift only needs to be used in the upper and lower loading area 10, and does not need to enter and exit the paint spraying area, which reduces the labor and improves the work efficiency. In addition, the paint spraying area is designed to comprise, from left to right, the cleaning room 1, the batching room 2, the polishing room 3, the first paint spraying room 4, the second paint spraying room 5 and the third paint spraying room 6, which can clearly distinguish each process, and each room can be independently set up a process, and the rooms do not affect each other, which can improve the work efficiency of each paint spraying room, is more convenient to manage, and cooperates with the runway-shaped conveying track, the transfer transition vehicle 50 and the support vehicle 60 to achieve the purpose of intermittent parking of the transfer transition vehicle 50 between each room, which is more conducive to the cooperation between the transfer transition vehicle 50 and the rooms with different working time, thereby achieving the purpose of intermittent conveying.
[0041] The conveying track comprises two sections of transition vehicle conveying rails 7 and two sections of transition vehicle rotating rails 8, the transition vehicle conveying rails 7 extend in a straight line, the transition vehicle rotating rails 8 extend in an arc shape, the two sections of transition vehicle conveying rails 7 are symmetrically arranged in front and back, the two sections of transition vehicle rotating rails 8 are symmetrically arranged in left and right, the two ends of the transition vehicle conveying rails 7 are respectively connected to the two sections of transition vehicle rotating rails 8, the transition vehicle conveying rail 7 at the rear side is provided with the transfer area 20, the transition vehicle conveying rail 7 at the front side is provided with the loading and unloading area 10 and the air drying area 30, the paint room rail 40 extends in the front and back direction, and the front end of the paint room rail 40 is located at the rear side of the transition vehicle conveying rail 7 at the rear side.
[0042] The inner side of the conveying track is provided with two sections of support vehicle conveying rails 9, the two sections of support vehicle conveying rails 9 are symmetrically arranged in left and right, the support vehicle conveying rails 9 are located at the inner side of the corresponding transition vehicle rotating rails 8, the support vehicle conveying rails 9 extend in the front and back direction, and the support rollers 62 are selectively adapted to the support vehicle conveying rails 9. The inner side of the conveying track is provided with a spacing wall 11 extending in the left and right direction, the left and right ends of the spacing wall 11 are both provided with a giving passage 12, and the support vehicle conveying rails 9 pass through the corresponding giving passage 12. In this embodiment, the outer side of the transition vehicle rail 51 is provided with a positioning pin 54 at the front and back ends, the outer side of the support vehicle conveying rail 9 is provided with a positioning hole 13 at the front and back ends and the outer side of the paint room rail 40 is provided with a positioning hole 13 at the front end, and the positioning pin 54 is selectively positioned in the corresponding positioning hole 13.
[0043] In this embodiment, the transfer transition vehicle 50 comprises a plurality of connecting rods 52, a plurality of transition vehicle rollers 53 and two transition vehicle rails 51, the connecting rods 52 are uniformly and symmetrically arranged in front and back, the connecting rods 52 extend in left and right, the two transition vehicle rails 51 are symmetrically arranged in left and right, the transition vehicle rails 51 extend in front and back, the connecting rods 52 are arranged between the two transition vehicle rails 51, the left and right ends of the connecting rods 52 are respectively connected to the two transition vehicle rails 51, the front and back ends of the bottom of the two transition vehicle rails 51 are provided with the transition vehicle rollers 53, and the transition vehicle rollers 53 are rollably adapted to the conveying track.
[0044] The general working process comprises:
[0045] When the transfer trolley 50 carrying the support trolley 60 is in the loading and unloading area 10, the workpiece to be painted is placed on the support frame 61 of the support trolley 60 by a forklift, and then the transfer trolley 50 moves to the rear transfer trolley conveying track 7 through the left transfer trolley rotation track 8, and then moves to an idle room of the painting area on the rear transfer trolley conveying track 7, so that the transfer trolley track 51 of the transfer trolley 50 is connected to the paint room track 40 in the corresponding idle room, and then the support trolley 60 carrying the workpiece to be painted is rolled onto the paint room track 40 from the transfer trolley track 51 through the support rollers 62, so that the support trolley 60 carrying the workpiece to be painted is conveyed to the corresponding idle room, at this time, the transfer trolley 50 is empty, and then the empty transfer trolley 50 continues to move;
[0046] When the workpiece to be painted in a room of the painting area is processed, the empty transfer trolley 50 moves to the room on the rear transfer trolley conveying track 7, so that the transfer trolley track 51 of the transfer trolley 50 is connected to the paint room track 40 in the room, and then the support trolley 60 carrying the processed workpiece in the room is rolled onto the transfer trolley track 51 from the paint room track 40 through the support rollers 62, so that the support trolley 60 carrying the processed workpiece in the room is conveyed to the transfer trolley 50, and then the transfer trolley 50 continues to move, moves to the front transfer trolley conveying track 7 through the right transfer trolley rotation track 8, and moves to the air-drying area 30;
[0047] When the workpiece in the air-drying area 30 is dried, the transfer trolley 50 carrying the support trolley 60 moves to the loading and unloading area 10 on the front transfer trolley conveying track 7, and the workpiece is unloaded by a forklift;
[0048] When the transfer trolley 50 carrying the support trolley 60 is in the loading and unloading area 10, the transfer trolley track 51 of the transfer trolley 50 is connected to the left support trolley conveying track 9, the support trolley 60 carrying the workpiece to be painted is rolled onto the support trolley conveying track 9 from the transfer trolley track 51 through the support rollers 62, and then the support trolley 60 is rolled onto the paint room track 40 in the cleaning room 1 through the transfer trolley track 51 of another empty transfer trolley 50 connected to the paint room track 40 in the cleaning room 1, so that the support trolley 60 carrying the workpiece to be painted is conveyed to the cleaning room 1;
[0049] When the workpiece to be painted in the third paint spraying room 6 is finished, the empty transfer trolley 50 moves to the third paint spraying room 6 on the rear transition trolley conveying rail 7, and the transition trolley rail 51 of the transfer trolley 50 is connected to the paint spraying room rail 40 in the third paint spraying room 6. At this time, the transition trolley rail 51 of the transfer trolley 50 is connected to the right support trolley conveying rail 9, and the support trolley 60 carrying the finished paint spraying workpiece in the third paint spraying room 6 is rolled into the transition trolley rail 51 of the transfer trolley 50 from the paint spraying room rail 40 through the support roller 62. The support trolley 60 is directly rolled into another empty transfer trolley 50 with the right support trolley conveying rail 9 connected to the transition trolley rail 51 of the transfer trolley 50.
[0050] In summary, the design focus of the utility model is that a runway-shaped conveying track is arranged on one side of the paint spraying area, and the conveying track has a loading and unloading area, a transfer area and a drying area. The transfer area is located on one side of the paint spraying area, and the loading and unloading area and the drying area are arranged side by side. In this way, the area design can be realized, which is more conducive to management and clear distinction of work areas. A paint spraying room rail is arranged in the paint spraying area, a transfer trolley is arranged on the conveying track, a transition trolley rail is arranged on the transfer trolley, the transition trolley rail is connected to or separated from the paint spraying room rail with the movement of the transfer trolley, and a support trolley for carrying workpieces to be painted is arranged on the transfer trolley. The support trolley includes a support frame and a support roller, and the support roller can be selectively adapted to the transition trolley rail or the paint spraying room rail. In this way, the transfer trolley can reciprocate in the paint spraying area on the runway-shaped conveying track, so that the support trolley carrying the workpieces to be painted reciprocates in the paint spraying area under the transportation of the transfer trolley, and the support trolley carrying the workpieces to be painted can roll into the paint spraying room rail in the paint spraying area through the support roller to complete the feeding. In this way, the assembly line design of painting is realized, and the forklift only needs to be used in the loading and unloading area, without the need to enter and exit the paint spraying area, which reduces the labor and improves the work efficiency. In addition, the paint spraying area is designed to include a cleaning room, a batching room, a grinding room, a first paint spraying room, a second paint spraying room and a third paint spraying room arranged from left to right in sequence, so that each process can be clearly distinguished, and each room can be independently set up as a process. The rooms do not affect each other, which can improve the work efficiency of each paint spraying room, is more convenient to manage, and cooperates with the runway-shaped conveying track, the transfer trolley and the support trolley, so that the transfer trolley can intermittently stop between the rooms, which is more conducive to the cooperation between the transfer trolley and the rooms with different working time, thereby achieving intermittent conveying.
[0051] The above merely describes the preferred embodiment of the present application, and is not intended to limit the technical scope of the present application in any way. Any slight modification, equivalent change, and modification made according to the technical essence of the present application shall still fall within the scope of the technical scheme of the present application.
Claims
1. A painting line comprising a painting area and a runway-shaped conveyor track located on one side of the painting area; characterized in that: The conveying track has a loading and unloading area, a transfer area and an air-drying area, the transfer area is located on one side of the painting area, the loading and unloading area and the air-drying area are located on the side of the transfer area away from the painting area, and the loading and unloading area and the air-drying area are arranged side by side. A paint room guide rail is provided in the paint spraying area, and one end of the paint room guide rail is connected to the transfer area; A transfer transition vehicle is provided on the conveying track, and the transfer transition vehicle can move on the conveying track. The transfer transition vehicle is provided with a transfer vehicle guide rail, and the transfer vehicle guide rail is connected to or detached from the paint room guide rail as the transfer transition vehicle moves. The transfer transition vehicle is provided with a support vehicle for carrying the workpiece to be painted, and the support vehicle includes a support frame and a support roller arranged at the bottom of the support frame, and the support roller can be selectively adapted to the transfer vehicle guide rail or the paint room guide rail.
2. The paint spraying line according to claim 1, characterized in that: The painting area includes a cleaning room, a plastering room, a polishing room, a first paint room, a second paint room, and a third paint room, which are arranged from left to right. The entrances and exits of the cleaning room, the plastering room, the polishing room, the first paint room, the second paint room, and the third paint room are all connected to the transfer area. The cleaning room, the plastering room, the polishing room, the first paint room, the second paint room, and the third paint room are all equipped with the paint room guide rails.
3. The paint spraying line according to claim 1, characterized in that: The conveying track includes two sections of transition car conveying guide rails and two sections of transition car rotary guide rails. The transition car conveying guide rails extend in a straight line, and the transition car rotary guide rails extend in an arc shape. The two sections of the transition car conveying guide rails are arranged with front-to-back symmetrical spacing, and the two sections of the transition car rotary guide rails are arranged with left-right symmetrical spacing. The two ends of the transition car conveying guide rails are respectively connected to the two sections of the transition car rotary guide rails. The transition car conveying guide rail located on the rear side is provided with the transfer area, and the transition car conveying guide rail located on the front side is provided with the loading and unloading area and the air-drying area. The paint room guide rail extends in the front-to-back direction, and the front end of the paint room guide rail is located on the rear side of the transition car conveying guide rail on the rear side.
4. The paint spraying line according to claim 3, characterized in that: Two sections of support vehicle conveying guide rails are provided on the inner side of the conveying track. The two sections of support vehicle conveying guide rails are arranged at a symmetrical interval on the left and right. The support vehicle conveying guide rails are located on the inner side of the corresponding transition vehicle rotary guide rails. The support vehicle conveying guide rails extend in the front-to-back direction, and the support rollers can be selectively adapted to the support vehicle conveying guide rails.
5. The paint spraying line according to claim 4, characterized in that: A partition wall extending in the left-right direction is provided on the inner side of the conveying track, and a clearance channel is provided at both left and right ends of the partition wall, and the conveying guide rail of the supporting vehicle passes through the corresponding clearance channel.
6. The paint spraying line according to claim 1, characterized in that: There are at least six transfer vehicles, and correspondingly, there are at least six support vehicles.
7. The paint spraying line according to claim 1, characterized in that: The transfer transition vehicle includes a plurality of connecting rods, a plurality of transition vehicle rollers and two transition vehicle guide rails. The plurality of connecting rods are arranged in sequence with uniform spacing along the front-to-back direction, the connecting rods extend along the left-to-right direction, the two transition vehicle guide rails are arranged with left-right symmetrical spacing, the transition vehicle guide rails extend along the front-to-back direction, and the plurality of connecting rods are arranged between the two transition vehicle guide rails. The left and right ends of the connecting rods are respectively connected to the two transition vehicle guide rails. The front and rear ends of the bottom of the two transition vehicle guide rails are provided with the transition vehicle rollers, and the transition vehicle rollers can be rotatably adapted to the conveying track.