CN119259343A - A topcoat coating equipment for automobile coating production line - Google Patents

Abstract

The present invention discloses a topcoat coating equipment for automobile coating production line, which relates to the field of vehicle manufacturing technology, and comprises: automobile topcoat station, which is divided into spraying area, drying area, polishing area and water washing area in sequence along the production line direction, spraying robot is symmetrically installed in the spraying area, ultraviolet paint baking device is provided in the drying area, polishing machine is installed in the polishing area, and multiple groups of water washing pools are provided in the water washing area. The present invention realizes automatic spraying and improves production efficiency by setting the spraying robot, the use of ultraviolet paint baking device and polishing machine ensures the dryness and smoothness of the topcoat and improves the coating quality, and the design of the adjustment component enables the angle and position of the ultraviolet paint baking lamp to be flexibly adjusted to adapt to car bodies of different sizes and shapes.

Description

A finish paint application equipment for car application production line

Technical Field

The invention relates to the technical field of vehicle manufacturing, in particular to a finishing paint coating device for an automobile coating production line.

Background

With the development of the automobile industry, the improvement of the automobile coating technology is also increasingly important. The automobile coating production line is a key ring in the automobile manufacturing process, and the coating quality is directly related to the appearance and the anti-corrosion performance of the automobile. At present, the conventional automobile coating production line generally has the problems of low efficiency, high energy consumption, unstable coating quality and the like. To solve these problems, automated coating apparatuses are increasingly used.

In the prior art, the ultraviolet baking finish lamp tube is usually arranged on one or more fixed brackets, and is usually not adjustable, but the appearance of the vehicle is not constant, and the ultraviolet baking finish lamp with fixed position can not quickly dry and cure new coatings of different frames due to different frame appearances. Therefore, the invention provides a finishing paint coating device for an automobile coating production line, which solves the defects in the prior art and further improves the efficiency and quality of automobile coating.

Disclosure of Invention

(One) solving the technical problems

Aiming at the defects of the prior art, the invention provides a finishing paint coating device for an automobile coating production line, which aims to solve the problems in the prior art.

(II) technical scheme

The finishing paint coating equipment for the automobile coating production line comprises an automobile finishing paint station, wherein the automobile finishing paint station is divided into a spraying area, a drying area, a polishing area and a washing area sequentially along the production line direction, spraying robots are symmetrically arranged in the spraying area, an ultraviolet baking paint device is arranged in the drying area, a polishing machine is arranged in the polishing area, and a plurality of groups of washing tanks are arranged in the washing area.

Preferably, the automotive finishing paint station comprises an operation table, a station inclined ladder is arranged at the inlet of the operation table, an air supply pipeline is paved on a bracket at the top of the operation table, and an ultraviolet baking finish device is arranged at the top of the operation table in a drying area.

Preferably, the air supply pipeline is arranged along the production line, and is manufactured by rectangular pipes, and a plurality of groups of air outlet holes are formed in the outer wall of the air supply pipeline at equal intervals.

Preferably, a conveyor is provided along the production line, with the conveyor being located in the middle of the console, the conveyor being composed of a slide rail and a conveyor for transferring the vehicle body from one work area to another.

Preferably, the ultraviolet baking finish device comprises a plurality of groups of U-shaped brackets which are arranged at the top of the operation table at equal intervals, the bottoms of the U-shaped brackets are fixedly connected with the operation table, the plurality of groups of U-shaped brackets are connected through the same fixing frame, and a plurality of groups of ultraviolet baking finish lamps are arranged on the fixing frame through adjusting components.

Preferably, the adjusting assembly comprises a mounting piece, the mounting piece is mounted on the fixing frame through a bolt, a guide groove is formed in the mounting piece, a guide sliding block is movably arranged in the guide groove, a limiting piece is fixedly arranged at the end of the mounting piece in a embedded mode, a locking pushing piece is movably arranged in the limiting piece, one end of the locking pushing piece is fixedly provided with a meshing piece, and the other end of the locking pushing piece extends to form a push rod.

Preferably, one end of the first connecting rod and one end of the second connecting rod, which are close to each other, are arranged on the guide sliding block in a common rotation mode, one end of the first connecting rod, which is far away from the guide sliding block, is connected with the fourth connecting rod in a rotation mode, one end of the second connecting rod, which is far away from the guide sliding block, is connected with the middle part of the third connecting rod in a rotation mode, one end of the third connecting rod is connected with the fourth connecting rod in a rotation mode, the other end of the third connecting rod extends into the mounting piece and forms a ratchet, and the ratchet is connected with the guide groove in a rotation mode.

Preferably, the first push head is in sliding connection with the limiting part, one end of the first push head, which is close to the push rod, is fixedly connected with the push rod, the reset spring is sleeved on the outer wall of the push rod, the meshing part is fixedly arranged at one end of the locking push part, which is close to the ratchet wheel, the locking push part is provided with a through groove, a clamping hole larger than the aperture of the through groove is formed in the through groove, the limiting part inwards forms a guide groove, the second push head is movably arranged in the guide groove, one end of the fifth connecting rod movably extends into the guide groove and is fixedly connected with the second push head, and the other end of the fifth connecting rod extends out of the through groove and is fixedly provided with a round clamping head.

Preferably, the second reset spring is sleeved on the outer wall of the fifth connecting rod, which is positioned in the guide groove, and the diameter of the circular clamping head is larger than that of the through groove.

Preferably, the adjusting seat is fixedly connected with the fourth connecting rod, one side of the adjusting seat, which is close to the vehicle body, extends to form an arc groove, the arc adjusting piece is movably arranged in the arc groove of the adjusting seat, one side of the arc adjusting piece, which is positioned in the arc groove, is fixedly provided with an arc rack, the ultraviolet baking finish lamp is arranged on the arc adjusting piece, the outer wall of the adjusting seat and the corresponding position of the arc adjusting piece are respectively provided with the same bolt hole, one end of the rotating shaft is fixedly provided with an adjusting handle, the other end of the rotating shaft is movably extended into the adjusting seat and fixedly sleeved with a driving gear, and the driving gear is meshed with the arc rack.

Compared with the prior art, the invention has the beneficial effects that:

1. The coating efficiency is improved, namely, automatic spraying is realized by arranging the spraying robot, manual operation is reduced, and the production efficiency is improved.

2. The coating quality is improved by using an ultraviolet baking varnish device and a polishing machine, the drying and smoothness of the finish paint are ensured, and the coating quality is improved.

3. The automatic operation table and the conveyor belt are arranged, so that the production line can continuously run, and the requirements of manual carrying and operation are reduced.

4. The safety is high, and the safety of operators is ensured due to the design of the station inclined ladder at the inlet of the operating platform and the slide rail of the conveyor belt.

5. The air supply pipeline is designed and used reasonably, so that energy sources can be saved effectively, and environmental pollution is reduced.

6. The angle and the position of the ultraviolet baking finish lamp can be flexibly adjusted by the design of the adjusting component, and the ultraviolet baking finish lamp is suitable for vehicle bodies with different sizes and shapes.

7. The equipment is convenient to maintain, and the modular design of each component, such as the mounting piece and the guide groove, enables the equipment to maintain and replace parts more conveniently and rapidly.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic side view of a spray area according to the present invention;

FIG. 3 is a schematic view of a station structure of an automotive topcoat in accordance with the present invention;

FIG. 4 is a schematic view of the structure of the console according to the present invention;

FIG. 5 is a schematic view of a station ramp in accordance with the present invention;

FIG. 6 is a schematic diagram of a blower pipeline according to the present invention;

FIG. 7 is a schematic view of the structure of the ultraviolet baking varnish device in the invention;

FIG. 8 is a schematic diagram of a first embodiment of an adjusting assembly according to the present invention;

FIG. 9 is a schematic illustration of the construction of the suspension lock pusher A-A of FIG. 8 in accordance with the present invention;

fig. 10 is a schematic perspective view of an adjusting seat according to the present invention.

In the figure, 1, a spraying area; 2, drying area, 3, polishing area, 4, washing area, 5, spraying robot, 6, conveyor belt, 7, slide rail, 8, conveyor belt, 9, operation desk, 10, station inclined ladder, 11, air supply pipeline, 12, ultraviolet baking finish device, 13, U-shaped bracket, 14, fixing frame, 15, ultraviolet baking finish lamp, 16, mounting piece, 17, guiding groove, 18, first connecting rod, 19, guiding slide block, 20, second connecting rod, 21, ratchet wheel, 22, meshing piece, 23, locking pushing piece, 24, limiting piece, 25, push rod, 26, first reset spring, 27, clamping hole, 28, through groove, 29, circular clamping head, 30, third connecting rod, 31, fourth connecting rod, 32, adjusting seat, 33, adjusting handle, 34, rotating shaft, 35, bolt hole, 36, arc adjusting piece, 37, first pushing head, 38, driving gear, 39, arc rack, 40, fifth connecting rod, 41, second reset spring, 42, second pushing head, 43 and guiding groove.

Detailed Description

The description herein as relating to "first," "second," etc. is for descriptive purposes only and is not intended to be specifically construed as a sequential or ordinal meaning nor is it intended to be limiting, but is merely intended to distinguish between components or operations that are described in the same technical term and is not to be interpreted as indicating or implying a relative importance or implying that the number of technical features indicated is not necessarily limited. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between the embodiments may be combined with each other, but it is necessary to base that a person skilled in the art can implement the combination of technical solutions, when the combination of technical solutions contradicts or cannot be implemented, should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present invention.

Example 1

Referring to fig. 1-7, the embodiment of the invention comprises an automobile finish station, wherein the automobile finish station is divided into a spraying area 1, a drying area 2, a polishing area 3 and a washing area 4 in sequence along the direction of a production line, the spraying area 1 is internally symmetrically provided with spraying robots 5, the drying area 2 is provided with an ultraviolet baking finish device 12, the polishing area 3 is internally provided with a polishing machine, and the washing area 4 is internally provided with a plurality of groups of washing pools.

The spraying area 1 is used for spraying primer, finish paint and varnish and comprises equipment such as a vehicle body, a spray gun, a spraying robot and the like which are ready for spraying;

A drying area 2, which is used for curing the coating, and generally adopts a high-temperature drying or ultraviolet radiation curing mode;

the polishing area 3 is used for polishing and polishing the dried car body so as to improve the surface quality and the glossiness;

the water washing area 4 is used for cleaning the car body, removing impurities such as greasy dirt, dust and the like before spraying, and ensuring the adhesiveness and the surface flatness of the paint.

Preferably, the automotive finishing paint station 9 comprises an operation table 9, a station inclined ladder 10 is arranged at the inlet of the operation table 9, an air supply pipeline 11 is paved on a bracket at the top of the operation table 9, and an ultraviolet baking paint device 12 is arranged at the top of the operation table 9 positioned in the drying area 2.

Preferably, the air supply pipeline 7 is arranged along a production line, the air supply pipeline 7 is made of rectangular pipes, and a plurality of groups of air outlet holes 13 are formed in the outer wall of the air supply pipeline 7 at equal intervals.

Preferably, a conveyor belt 6 is arranged along the production line, and the conveyor belt 6 is located in the middle of the operating table 9, and the conveyor belt 6 is composed of a slide rail 7 and a conveyor belt 8 for transferring the vehicle bodies from one working area to another.

Preferably, the ultraviolet baking finish device 12 comprises a U-shaped bracket 13, a plurality of groups of U-shaped brackets 13 are arranged at the top of the operation table 9 at equal intervals, the bottom of the U-shaped bracket 13 is fixedly connected with the operation table 9, the plurality of groups of U-shaped brackets 13 are connected through the same fixing frame 14, and a plurality of groups of ultraviolet baking finish lamps 15 are arranged on the fixing frame 14 through adjusting components.

The working principle and the beneficial effects of the technical scheme are as follows:

The automobile finish station is a very important link in the whole automobile manufacturing process, and can protect the automobile surface and enhance the appearance and attractive force of the automobile. Thus, each automotive finishing station on modern automotive production lines requires careful design and equipment to ensure an efficient, high quality coating process.

Automotive finishing stations typically include various functional areas such as paint preparation areas, paint handling areas, drying areas, and inspection areas. In the paint preparation area, the craftsman needs to perform surface treatment including removal of grease, dust, dirt and other impurities, polishing, filling pits and other operations. These steps are critical to the subsequent painting process because they ensure a smooth, even surface and facilitate adhesion and durability of the paint.

In the painting area 1, the craftsman needs to use specialized paint spraying equipment and tools to paint according to predetermined procedures and parameters, including steps of coating, drying, repairing, etc. of the primer and the top coat, and in this process, the craftsman needs to pay close attention to parameters of concentration, consistency, color, coating thickness, etc. of the paint to ensure that the final painting effect meets the design requirements and meets the high quality standard.

In the drying zone 2, the craftsman is required to dry and cure the new coating using specialized drying equipment, which requires precise time and temperature control to ensure that the coating dries uniformly and rapidly and achieves the desired hardness. In addition, care must be taken to maintain good ventilation and environmental sanitation during the drying process, preventing dust and dirt from adhering to the wet paint surface, and affecting the quality of the paint.

In the inspection area, the craftsman needs to perform a comprehensive inspection and evaluation of the new coating. This includes assessment of various aspects of surface flatness, gloss, color saturation, and the like. If any flaws or defects are found, the craftsman needs to repair and recoat in time to ensure that the final coating effect meets the requirements.

The console 9 is an indispensable device in the automobile repair industry, which is designed specifically for painting the surface of an automobile, and the console 9 is generally composed of a closed cabinet and an operating area equipped with various paint spraying devices. Its main function is to provide a smooth surface for the vehicle to paint and to expel exhaust gases during the painting process.

There are many different types of consoles 9, which may be selected as appropriate according to different requirements and space sizes, one common type of console 9 being side-pushing, which is suitable for paint construction for vehicle types with a higher body, because it effectively provides a larger space and a better viewing angle.

The operating area of the console 9 generally includes lighting, paint spray guns, filters, motors and the like. Wherein the light can provide enough light to ensure that the coating is even, and the paint gun is then the important instrument that is used for spraying paint vehicle, and impurity and dust in the filter can filter the air effectively, and the motor is then used for driving exhaust equipment, discharges waste gas from the workstation.

In using the console 9, some safety precautions need to be taken. First, safety glasses and masks must be worn during operation to protect themselves. And secondly, the workbench is thoroughly cleaned and prepared before the paint construction, so that the surface is smooth and dry, and dust and impurities are prevented from being mixed. And finally, cleaning and maintaining the equipment after the use is finished so as to ensure the normal operation of the equipment in the next use.

The console 9 is a very important device in the modern automotive repair industry, which provides a smooth surface for the vehicle to be painted, and which is capable of exhausting exhaust gases, ensuring the health and safety of the operators.

The station ramp 10 is an apparatus for painting automobiles, which is generally installed in a paint booth or a painting work area, and the station ramp 10 is mainly made of a metal material, has a trapezoidal shape, one side of which is parallel to the ground, the other side of which is inclined upward, and is provided with a fixed handrail above.

The main purpose of the station ramp 10 is to provide a stable platform for the workers to perform the painting operation more conveniently and safely, and the ramp is designed so that it can be placed in a corner beside the vehicle and extend at an angle oblique to the vehicle body so that the workers can easily reach all the parts to be painted.

The station inclined ladder 10 not only can improve the working efficiency, but also can ensure the construction quality. Through using the inclined ladder, the staff can control the distance and the direction of the spray gun more accurately, so that the coating is more uniform, the coating film is more compact, and the color is more bright. In addition, the stability of inclined ladder also can help the staff to control oneself balanced better, avoids unexpected emergence.

The design of the air supply pipeline 11 is a very important part of the automobile paint spray booth, and the main function of the design is to send fresh air into the paint spray booth, maintain pressure and temperature, and the correct design of the air supply pipeline can improve the coating efficiency and quality, and also can effectively protect the health and safety of staff.

Before designing the air supply pipeline, the structure and the size of the paint spray booth need to be known, and a designer can select different air supply modes and pipeline arrangement schemes according to different sizes and shapes of the paint spray booth so as to achieve the optimal air supply effect.

In general, the air supply pipeline 11 of the automotive finishing paint station adopts a closed circulation system to supply air, namely fresh air is sucked into a room through a fan, and then filtered by a filter, and old air is discharged.

Example 2

On the basis of embodiment 1, referring to fig. 7-10, the adjusting assembly comprises a mounting piece 16, the mounting piece 16 is mounted on a fixing frame 14 through bolts, a guide groove 17 is formed in the mounting piece 16, a guide sliding block 19 is movably arranged in the guide groove 17, a limiting piece 24 is fixedly arranged at the end of the mounting piece 16 in a embedding manner, a locking pushing piece 23 is movably arranged in the limiting piece 24, one end of the locking pushing piece 23 is fixedly provided with an engagement piece 22, and the other end of the locking pushing piece 23 extends to form a push rod 25.

Preferably, one end of the first connecting rod 18 and one end of the second connecting rod 20, which are close to each other, are rotatably arranged on the guide slide block 19, one end of the first connecting rod 18, which is far away from the guide slide block 19, is rotatably connected with the fourth connecting rod 31, one end of the second connecting rod 20, which is far away from the guide slide block 19, is rotatably connected with the middle part of the third connecting rod 30, one end of the third connecting rod 30 is rotatably connected with the fourth connecting rod 31, the other end of the third connecting rod 30 extends into the mounting piece 16 and forms a ratchet 21, and the ratchet 21 is rotatably connected with the guide groove 17.

Preferably, the first push head 37 is slidably connected with the limiting member 24, one end of the first push head 37, which is close to the push rod 25, is fixedly connected with the push rod 25, the first return spring 26 is sleeved on the outer wall of the push rod 25, one end of the locking push member 23, which is close to the ratchet 21, is fixedly provided with the engaging member 22, the locking push member 23 is provided with the through slot 28, the through slot 28 is provided with the clamping hole 27 with a larger aperture than the through slot 28, the limiting member 24 inwards forms the guide slot 43, the second push head 42 is movably arranged in the guide slot 43, one end of the fifth connecting rod 40 movably extends into the guide slot 43 and is fixedly connected with the second push head 42, and the other end of the fifth connecting rod 40 extends out of the through slot 28 and is fixedly provided with the circular clamping head 29.

Preferably, the second return spring 41 is sleeved on the outer wall of the fifth connecting rod 40, which is positioned in the guide groove 43, and the diameter of the circular clamping head 29 is larger than that of the through groove 28.

Preferably, the adjusting seat 32 is fixedly connected with the fourth connecting rod 31, one side, close to the vehicle body, of the adjusting seat 32 extends to form an arc groove, the arc adjusting piece 36 is movably arranged in the arc groove of the adjusting seat 32, one side, located in the arc groove, of the arc adjusting piece 36 is fixedly provided with an arc rack 39, the ultraviolet baking finish lamp 15 is mounted on the arc adjusting piece 36, the outer wall of the adjusting seat 32 and the corresponding position of the arc adjusting piece 36 are provided with the same bolt holes 35, one end of the rotating shaft 34 is fixedly provided with an adjusting handle 33, the other end of the rotating shaft 34 movably extends into the adjusting seat 32 and is fixedly sleeved with a driving gear 38, and the driving gear 38 is meshed with the arc rack 39.

The working principle of the technical scheme and the beneficial effects of the technical scheme are that the ultraviolet baking paint lamp 15 utilizes an ultraviolet light source to quickly dry and cure a new coating of an automobile, and has the advantages of high efficiency, energy conservation, environmental protection and the like, in the prior art, the ultraviolet baking paint lamp tube is usually arranged on one or more fixed brackets, but the appearance of a vehicle is not invariable, and because of different frame appearances, the irradiation angles of a plurality of groups of ultraviolet baking paint lamps 15 are required to be adjusted differently for different frames, so that the new coating can be quickly dried and cured, and when different frames enter a baking paint area, the ultraviolet baking paint lamp 15 can generate high-intensity ultraviolet light radiation to quickly dry and cure the new coating, thereby having good adaptability and universality.

When in adjustment, the guide slide block 19 is only pushed to slide along the guide groove 17, so that the angle of the adjusting seat 32 is driven to be changed through a four-bar structure consisting of the first bar 18, the second bar 20, the third bar 30 and the fourth bar 31, so that the ultraviolet baking varnish lamp 15 is adjusted to a proper position, at this time, the third link 30 synchronously drives the ratchet 21 to synchronously rotate, the first push head 37 is pressed to drive the locking pushing piece 23 to move towards the direction approaching to the ratchet wheel 21 until the ratchet wheel 21 is meshed with the locking pushing piece 23, at the moment, since the diameter of the circular chuck 29 is larger than the diameter of the through groove 28 and smaller than the diameter of the chuck hole 27 as shown in fig. 9, when the fifth link 40 is moved along the through slot 28 into the chuck hole 27, the circular chuck 29 is no longer restricted by the through slot 28, and under the pulling of the second return spring 41, the fifth connecting rod 40 moves downwards to drive the circular chuck 29 to enter the chuck hole 27, so as to lock the locking pushing piece 23, prevent the locking pushing piece from moving, the ratchet wheel 21 is locked, so that the four-bar mechanism cannot move, the situation that the ultraviolet baking finish lamp 15 is offset after being adjusted is avoided, after the large-angle adjustment is performed in the mode, when the angle of the ultraviolet baking finish lamp 15 needs to be finely adjusted so that the ultraviolet baking finish lamp can better irradiate to a narrow position of the frame, only the adjusting handle 33 is required to rotate, and the driving gear 38 is driven to rotate through the rotating shaft 34, at this time, the arc-shaped adjusting piece 36 slides along the arc-shaped groove of the adjusting seat 32 under the drive of the arc-shaped rack 39, so as to achieve the purpose of fine adjustment, the arc-shaped adjusting piece 36 is fixed by inserting the pin into the pin hole 35, so that the occurrence of offset of the ultraviolet baking finish lamp 15 is further avoided.

When the ultraviolet baking finish lamp 15 needs to be reset or the large angle is changed again, the second push head 42 is only needed to be pressed, so that the fifth connecting rod 40 drives the circular clamping head 29 to be separated from the clamping hole 27, at the moment, the first push head 37 drives the locking push piece 23 to reset under the drive of the first reset spring 26, so that the ratchet 21 is separated from the meshing piece 22, and at the moment, the large angle of the ultraviolet baking finish lamp 15 can be adjusted by changing the position of the guide sliding block 19.

It should be noted that the adjusting seat 32 is connected with the fourth connecting rod 31 through bolts, so that the fine adjustment of angles of the ultraviolet baking finish lamp 15 in different directions can be realized according to different installation directions of the adjusting seat 32, the adjusting seat is suitable for different working conditions, the design of the four connecting rods ensures accurate positioning and adjustment of each part, the working precision of equipment is improved, the adjusting handle 33 is matched with the arc-shaped rack 39 with the driving gear 38, the position of the ultraviolet baking finish lamp 15 can be conveniently adjusted, the operation is simple and convenient, the complexity of manual operation is reduced, the design of the first return spring 26 and the second return spring 41 ensures the automatic return function of the system, and the safety and the service life of the equipment are improved.

Through the setting of adjusting part, can nimble angle and the position of adjusting ultraviolet baking finish lamp 15, adapt to the automobile body of equidimension and shape, improve the suitability of equipment.

The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A finishing paint coating device for an automobile coating production line is characterized in that,

The automatic finishing machine comprises an automobile finishing machine station, wherein the automobile finishing machine station is divided into a spraying area (1), a drying area (2), a polishing area (3) and a washing area (4) along the direction of a production line, spraying robots (5) are symmetrically arranged in the spraying area (1), an ultraviolet baking finish device (12) is arranged in the drying area (2), a polishing machine is arranged in the polishing area (3), and a plurality of groups of washing pools are arranged in the washing area (4).

2. A topcoat coating apparatus for an automotive coating line according to claim 1, wherein,

The automobile finish station (9) comprises an operation table (9), a station inclined ladder (10) is arranged at the inlet of the operation table (9), an air supply pipeline (11) is paved on a bracket at the top of the operation table (9), and an ultraviolet baking finish device (12) is arranged at the top of the operation table (9) positioned in the drying area (2).

3. A topcoat coating apparatus for an automotive coating line according to claim 2, wherein,

The air supply pipeline (7) is arranged along the production line, the air supply pipeline (7) is manufactured by adopting a rectangular pipe, and a plurality of groups of air outlet holes (13) are formed in the outer wall of the air supply pipeline (7) at equal intervals.

4. A topcoat coating apparatus for an automotive coating line according to claim 1, wherein,

The conveyor belt (6) is arranged along the production line, the conveyor belt (6) is positioned in the middle of the operating platform (9), and the conveyor belt (6) is composed of a sliding rail (7) and a conveying belt (8) and is used for transferring a vehicle body from one working area to the other working area.

5. A topcoat coating apparatus for an automotive coating line according to claim 2, wherein,

The ultraviolet baking finish device (12) comprises a U-shaped bracket (13), a plurality of groups of U-shaped brackets (13) are arranged at the top of the operation table (9) at equal intervals, the bottom of the U-shaped bracket (13) is fixedly connected with the operation table (9), the plurality of groups of U-shaped brackets (13) are connected through the same fixing frame (14), and a plurality of groups of ultraviolet baking finish lamps (15) are arranged on the fixing frame (14) through adjusting components.

6. A topcoat coating apparatus for an automotive coating line according to claim 5, wherein,

The adjusting assembly comprises an installing piece (16), the installing piece (16) is installed on a fixing frame (14) through a bolt, a guide groove (17) is formed in the installing piece (16), a guide sliding block (19) is movably arranged in the guide groove (17), a limiting piece (24) is fixedly arranged at the end of the installing piece (16) in a embedded mode, a locking pushing piece (23) is movably arranged in the limiting piece (24), an engagement piece (22) is fixedly arranged at one end of the locking pushing piece (23), and the other end of the locking pushing piece (23) extends to form a push rod (25).

7. A topcoat coating apparatus for an automotive coating line according to claim 6, wherein,

One end that first connecting rod (18) and second connecting rod (20) are close to each other rotates jointly and locates on direction slider (19), one end that direction slider (19) was kept away from to first connecting rod (18) is connected with fourth connecting rod (31) rotation, one end that direction slider (19) was kept away from to second connecting rod (20) is connected with third connecting rod (30) middle part rotation, third connecting rod (30) one end is connected with fourth connecting rod (31) rotation, third connecting rod (30) other end extends to in installed part (16) and forms ratchet (21), ratchet (21) are connected with guide way (17) rotation.

8. A topcoat coating apparatus for an automotive coating line according to claim 7, wherein,

The first push head (37) is in sliding connection with the limiting piece (24), one end of the first push head (37) close to the push rod (25) is fixedly connected with the push rod (25), the first return spring (26) is sleeved on the outer wall of the push rod (25), one end of the locking push piece (23) close to the ratchet wheel (21) is fixedly provided with the meshing piece (22), the through groove (28) is formed in the locking push piece (23), the clamping hole (27) larger than the hole diameter of the through groove (28) is formed in the through groove (28), the limiting piece (24) inwards forms the guide groove (43), the second push head (42) is movably arranged in the guide groove (43), one end of the fifth connecting rod (40) is movably extended into the guide groove (43) and is fixedly connected with the second push head (42), and the other end of the fifth connecting rod (40) extends out of the through groove (28) and is fixedly provided with the round clamping head (29).

9. A topcoat coating apparatus for an automotive coating line according to claim 8, wherein,

The second return spring (41) is sleeved on the outer wall of the fifth connecting rod (40) positioned in the guide groove (43), and the diameter of the circular clamping head (29) is larger than that of the through groove (28).

10. A topcoat coating apparatus for an automotive coating line according to claim 7, wherein,

The adjusting seat (32) is fixedly connected with the fourth connecting rod (31), one side of the adjusting seat (32) close to the automobile body extends to form an arc groove, the arc adjusting piece (36) is movably arranged in the arc groove of the adjusting seat (32), one side of the arc adjusting piece (36) located in the arc groove is fixedly provided with an arc rack (39), the ultraviolet baking finish lamp (15) is arranged on the arc adjusting piece (36), the outer wall of the adjusting seat (32) and the corresponding position of the arc adjusting piece (36) are provided with the same bolt holes (35), one end of the rotating shaft (34) is fixedly provided with an adjusting handle (33), the other end of the rotating shaft (34) movably extends into the adjusting seat (32) and is fixedly sleeved with a driving gear (38), and the driving gear (38) is meshed with the arc rack (39).