An automatic spraying production line for automobiles

Abstract

The present invention relates to the field of automobile spraying technology, specifically to an automobile automatic spraying production line, including a spraying room, a room door is hinged on one side of the bottom of the spraying room, a loading conveyor line is installed inside the spraying room, a unloading conveyor line is arranged on one side of the loading conveyor line, a profile spraying part and a rotary spraying part are arranged on the surface of the loading conveyor line, a self-rotating mechanism is connected to the inside of the spraying room and located on one side of the loading conveyor line, a transmission energy-saving mechanism is also arranged between the loading conveyor line and the unloading conveyor line, and a spraying manipulator is also installed on one side of the spraying room. The present invention realizes two spraying modes of profile and rotation by arranging a profile spraying part, a rotary spraying part and a self-rotating mechanism, thereby expanding the scope of use; at the same time, by arranging a transmission energy-saving mechanism, energy-saving work is realized, the flexibility of the skid body in and out of the material is improved, and the energy loss phenomenon is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of automobile spraying, in particular to an automobile automatic spraying production line. Background Art

[0002] The sled conveyor line is a common conveyor line in automobile spraying production. Each station of the sled conveyor line includes a conveying device, which includes a sled mechanism. The sled mechanism is used to realize workpiece transportation. During the spraying process of automobiles, it is often necessary to use a sled conveyor line for transportation.

[0003] The traditional sled line spraying method is either tracking and profiling spraying or rotary spraying. The existing sled line is conducive to profiling spraying, but rotary spraying is difficult to position. Rotary spraying on the sled line will easily slide due to inertia after starting and stopping, and the failure rate of servo motors is high, which makes the spraying production line more cumbersome to use and seriously affects the use range of the spraying production line. Moreover, the existing spraying production lines are not energy-efficient. Multiple motor drives are required to realize the transportation work during the transportation process. When multiple motors are working, it not only increases the production cost, but also causes energy loss. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic automobile spraying production line to solve the problem that the existing spraying methods mentioned in the above background technology are either tracking and profiling spraying or rotary spraying, and multiple motor drives are required during the conveying process, which increases the production cost.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic automobile spray painting production line, comprising a spray painting room, a room door is hinged on one side of the bottom of the spray painting room, an operating table is fixed on the surface of the spray painting room and located on one side of the room door, and the operating table is used for spraying operation; a feed port is arranged on the left side of the spray painting room, and a discharge port is arranged on the right side of the spray painting room; a feeding conveyor line is installed inside the spray painting room, and one end of the feeding conveyor line passes through the feed port and extends to the outside of the spray painting room, and the feeding conveyor line is provided at the right side of the spray painting room. A material unloading conveyor line is arranged on one side of the line, one end of which passes through the discharge port and extends to the outside of the spraying room; a contour spraying part and a rotary spraying part are arranged on the surface of the material unloading conveyor line, respectively, and the contour spraying part and the rotary spraying part are used for contour spraying and rotary spraying respectively; a self-rotating mechanism is connected to the inside of the spraying room and located on one side of the material unloading conveyor line, and the self-rotating mechanism is used to drive the rotary spraying part to rotate, and the self-rotating mechanism is composed of a self-rotating frame, a self-rotating motor, a transmission chain group and an adjusting component , the self-rotating frame is fixedly connected to the interior of the spraying room, and a transmission chain group is arranged on the surface of the self-rotating frame, a self-rotating motor is installed on one side of the bottom of the self-rotating frame, the self-rotating motor is used to drive the transmission chain group to move, and an adjusting component is also arranged on the surface of the self-rotating frame, and the adjusting component is used to adjust the transmission chain group; a transmission energy-saving mechanism is also arranged between the feeding conveyor line and the unloading conveyor line, and the transmission energy-saving mechanism is convenient for docking transmission and conveying adjustment; the transmission energy-saving mechanism includes a gear seat, a pinion and an adjusting part, the gear seat is provided with two groups, and the two groups of gear seats are fixedly connected to the surface of the feeding rack or the unloading rack by bolts, and the surface of the gear seat is rotatably connected with a pinion, and the adjusting part is connected to one end of the feeding rack or the unloading rack away from the gear seat; a spraying robot is also installed on one side of the spraying room, and the spraying robot is composed of a base and a mechanical arm, the base is fixedly connected to the interior of the spraying room, and a mechanical arm is installed on the top of the base, and the mechanical arm is used for spraying products.

[0006] Preferably, a vent is provided on the side wall of the top of the spraying room, and a fan is fixed on the top of the spraying room and above the vent, and the fan is used for ventilation inside and outside the spraying room.

[0007] Preferably, the feeding conveyor line is composed of a feeding frame, a feeding servo motor, a feeding roller and a feeding belt. The feeding frame is installed inside the spray chamber, and the surface of one side of the feeding frame is fixedly connected to the feeding servo motor, the left and right sides of the feeding frame are rotatably connected to the feeding rollers, and the feeding belts are wound between adjacent feeding rollers, and the feeding roller on the right side is fixedly connected to the output end of the feeding servo motor through a sprocket chain.

[0008] Preferably, the unloading conveyor line is composed of a unloading frame, a unloading servo motor, a unloading roller and a unloading belt. The unloading frame is fixedly connected to the inside of the spray chamber, and the left and right ends of the unloading frame are rotatably connected to the unloading rollers; a unloading servo motor is installed on one side of the surface of the unloading frame, and a sprocket chain module is fixed to the output end of the unloading servo motor, and the other end of the sprocket chain module is detachably connected to the unloading roller by a locking screw.

[0009] Preferably, the transmission chain group includes a mounting seat, a main sprocket, a rotating chain, an adjusting seat and a slave sprocket, the mounting seat is fixedly connected to the surface of the rotating frame by bolts, and the surface of the rotating frame is rotatably connected to the main sprocket, and the bottom end of the main sprocket passes through the rotating frame and is fixedly connected to the output end of the rotating motor, and adjusting seats are installed at both ends of the rotating frame and on one side of the main sprocket, and the surface of the adjusting seat is rotatably connected to the slave sprocket, and the slave sprocket and the main sprocket are connected through the rotating chain transmission.

[0010] Preferably, the adjustment assembly is composed of a fixed seat, an adjustment plate, an adjustment bolt and an adjustment sprocket. The fixed seat is fixedly connected to the surface of the self-rotating frame, and the interior of the fixed seat is slidably connected to the adjustment plate. The surface of the adjustment plate is rotatably connected to the adjustment sprocket, and the adjustment sprocket and the self-rotating chain cooperate with each other in transmission. The surface of the fixed seat is connected to the adjustment bolt through a vertical block thread, and one end of the adjustment bolt is rotatably connected to the adjustment plate.

[0011] Preferably, the profiling spraying section is composed of a profiling frame and a sled to be shaped, the profiling frame is fixedly connected to the surface of the spraying room, and the sled to be shaped is placed on the surface of the profiling frame; the rotary spraying section is composed of a rotating frame and a sled to be rotated, the rotating frame is rotatably connected to the surface of the rotating frame, and the sprocket on the surface of the rotating frame is transmission-connected to the self-rotating chain, and the sled to be rotated is placed on the surface of the rotating frame.

[0012] Preferably, the adjusting part is composed of an adjusting side plate, a shaft rod, a large gear and an adjusting screw. The adjusting side plate is fixedly connected to the surface of a loading rack or an unloading rack, and a shaft rod is provided on the inner wall of the adjusting side plate, and a large gear is fixed on the surface of the shaft rod. Adjusting screws are connected to both ends of the adjusting side plate, and the adjusting screw and the shaft rod are rotatably connected to each other, and when in a docked state, the large gear and the small gear are meshed with each other.

[0013] Compared with the prior art, the invention has the following beneficial effects: the automobile automatic spraying production line is provided with a profiling spraying part, a rotary spraying part and a self-rotating mechanism, and the profiling spraying or the rotary spraying is selected according to the needs. When the profiling spraying is performed, the sled to be profiled is placed on the surface of the profiling frame, and the spraying work is realized by the spraying manipulator. When the rotary spraying is required, the sled to be rotated is placed on the surface of the rotating frame, and the self-rotation of the sled is realized by the self-rotating mechanism. When the self-rotating mechanism is implemented, the transmission chain group on the surface of the rotating frame is driven to rotate by the self-rotating motor. When the transmission chain group rotates, the self-rotating chain and the sprocket in the middle of the rotating frame are engaged with each other by adjusting the adjusting component, thereby driving the sled to rotate. When rotating, the spraying work is realized by the spraying manipulator, thereby realizing the two spraying modes of profiling and rotation, and expanding the scope of use; at the same time, by providing a transmission energy-saving mechanism, energy-saving work is realized, and the purpose of one motor driving two conveyor lines is achieved. At the same time, after the spraying room and the feeding conveyor line are separated, they can also be used separately by locking the locking screw, thereby improving the flexibility of the sled in and out of the material, and reducing the energy loss phenomenon;

[0014] Moreover, the present invention solves the problem that contour spraying on the sled line is conducive to positioning difficulty in rotary spraying; solves the problem that the sled is easy to slide due to inertia after starting and stopping rotary spraying on the sled line; by changing the traditional idea of ​​using a servo motor for the self-rotating motor, ordinary motors are used with brakes according to working conditions, thereby avoiding the problem of high failure rate of using servo motors; by processing the self-rotating program and the robot program in the same PLC, the problem of communication delay between different PLCs is solved; by adopting the gearbox ratio method, the sensor senses the wheel to calculate the number of revolutions, thereby solving the problem that the high-speed running sled cannot respond to the deceleration sensor signal in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main appearance structure of the present invention;

[0016] Figure 2 It is a side view structural schematic diagram of the present invention;

[0017] Figure 3 It is a schematic diagram of the top view of the structure of the present invention;

[0018] Figure 4 It is a schematic diagram of the main enlarged structure of the feeding conveyor line of the present invention;

[0019] Figure 5 It is a schematic diagram of the enlarged structure of the feeding conveyor line of the present invention from top view;

[0020] Figure 6 It is a schematic diagram of the main enlarged structure of the material unloading conveying line of the present invention;

[0021] Figure 7 It is a schematic diagram of the structure of the material unloading conveying line of the present invention, viewed from top view and enlarged;

[0022] Figure 8 It is a partial side view enlarged structural schematic diagram of the present invention;

[0023] Fig. 9 It is an enlarged structural schematic diagram of the rotation mechanism of the present invention;

[0024] Fig.10 It is a schematic diagram of the enlarged structure of the adjustment part of the present invention.

[0025] In the figure: 1. Spraying room; 11. Ventilation port; 12. Room door; 13. Operation table; 14. Feed port; 15. Discharge port; 16. Fan; 2. Feeding conveyor line; 21. Feeding rack; 22. Feeding servo motor; 23. Feeding roller; 24. Feeding belt; 3. Unloading conveyor line; 31. Unloading rack; 32. Unloading servo motor; 321. Sprocket chain module; 322. Locking screw; 33. Unloading roller; 34. Unloading belt; 4. Self-rotation mechanism; 41. Self-rotation rack; 42. Self-rotation motor; 43. Transmission chain group; 431. Mounting seat; 432. Main sprocket; 433. Rotating chain; 434. Adjusting seat; 435. Sprocket; 44. Adjusting assembly; 441. Fixed seat; 442. Adjusting plate; 443. Adjusting bolt; 444. Adjusting sprocket; 5. Profiling spraying unit; 51. Profiling frame; 52. Sled to be profiled; 6. Spraying manipulator; 61. Base; 62. Manipulator arm; 7. Rotating spraying unit; 71. Rotating frame; 72. Sled to be rotated; 8. Transmission energy-saving mechanism; 81. Gear seat; 82. Small gear; 83. Adjusting unit; 831. Adjusting side plate; 832. Shaft; 833. Large gear; 834. Adjusting screw. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. In addition, the terms "first", "second", "third", "upper, lower, left, right", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. At the same time, in the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] The structure of an automobile automatic spraying production line provided by the present invention is as follows Figures 1 to 6As shown, it includes a spraying room 1, one side of the bottom of the spraying room 1 is also hinged with a room door 12, an operating table 13 is fixed on the surface of the spraying room 1 and on one side of the room door 12, and the operating table 13 is used for spraying operation work, a vent 11 is arranged on the side wall of the top of the spraying room 1, and a fan 16 is fixed on the top of the spraying room 1 and above the vent 11, and the fan 16 is used for ventilation work inside and outside the spraying room 1; a feed port 14 is arranged on the left side of the spraying room 1, and a discharge port 15 is arranged on the right side of the spraying room 1; a feeding conveyor line 2 is installed inside the spraying room 1, and one end of the feeding conveyor line 2 passes through the feeding port 14 and extends to the outside of the spraying room 1, and the feeding conveyor line 2 is composed of a feeding frame 21, a feeding servo motor 22, a feeding roller 23 and a feeding belt 24, the feeding frame 21 is installed inside the spraying room 1, and the surface of one side of the feeding frame 21 is fixedly connected with the feeding servo motor 22, and the feeding servo motor 22 is fixedly connected to the feeding servo motor 22. The left and right sides of the frame 21 are both rotatably connected with feeding rollers 23, and a feeding belt 24 is wound between adjacent feeding rollers 23, and the feeding roller 23 on the right side is fixedly connected to the output end of the feeding servo motor 22 through a sprocket chain, and a unloading conveyor line 3 is arranged on one side of the feeding conveyor line 2, and the unloading conveyor line 3 is composed of an unloading frame 31, an unloading servo motor 32, an unloading roller 33 and an unloading belt 34, the unloading frame 31 is fixedly connected to the inside of the spray chamber 1, and the left and right ends of the unloading frame 31 are both rotatably connected with the unloading rollers 33; a unloading servo motor 32 is installed on one side of the surface of the unloading frame 31, and a sprocket chain module 321 is fixed to the output end of the unloading servo motor 32, and the other end of the sprocket chain module 321 is detachably connected to the unloading roller 33 by a locking screw 322, and one end of the unloading conveyor line 3 passes through the discharge port 15 and extends to the outside of the spray chamber 1.

[0028] During implementation, the unloading conveyor line 3 is placed on one side of the loading conveyor line 2, so that the large gear 833 and the small gear 82 are directly meshed or meshed through a toothed belt, and then the locking screw 322 is loosened to loosen the sprocket chain module 321 and the unloading roller 33 from each other, and the loading servo motor 22 in the loading conveyor line 2 drives the loading conveyor line 2 and the unloading conveyor line 3 to move as a whole.

[0029] Furthermore, if Figure 4 as well as Figure 5As shown, the surface of the feeding conveyor line 2 is respectively provided with a profiling spraying section 5 and a rotary spraying section 7, which are used for profiling spraying and rotary spraying respectively. The profiling spraying section 5 is composed of a profiling frame 51 and a sled 52 to be shaped, the profiling frame 51 is fixedly connected to the surface of the spraying room 1, and the sled 52 to be shaped is placed on the surface of the profiling frame 51; the rotary spraying section 7 is composed of a rotating frame 71 and a sled 72 to be rotated, the rotating frame 71 is rotatably connected to the surface of the self-rotating frame 41, and the sprocket on the surface of the rotating frame 71 is mutually transmission-connected with the self-rotating chain 433, and the sled 72 to be rotated is placed on the surface of the rotating frame 71.

[0030] During implementation, contour spraying or rotary spraying is selected according to needs. When contour spraying is performed, the sprayed part to be contoured is placed on the surface of the contour frame 51, and the spraying work is achieved by the spraying robot 6. When rotary spraying is required, the sprayed part to be rotated is placed on the surface of the rotating frame 71, and the rotation of the sled is achieved by the rotation mechanism 4.

[0031] Furthermore, if Figure 8 as well as Fig. 9 As shown, a rotation mechanism 4 is connected inside the spray chamber 1 and located on one side of the feeding conveyor line 2. The rotation mechanism 4 is used to drive the rotating spraying part 7 to rotate. The rotation mechanism 4 is composed of a rotation frame 41, a rotation motor 42, a transmission chain group 43 and an adjustment component 44. The rotation frame 41 is fixedly connected to the inside of the spray chamber 1, and the surface of the rotation frame 41 is provided with a transmission chain group 43. A rotation motor 42 is installed on one side of the bottom of the rotation frame 41. The rotation motor 42 is used to drive the transmission chain group 43 to move. An adjustment component 44 is also provided on the surface of the rotation frame 41. The adjustment component 44 is used to adjust the transmission chain group 43. The transmission chain group 43 includes a mounting seat 431, a main sprocket 432, a rotation chain 433, an adjustment seat 434 and a slave sprocket 435. The mounting seat 431 is fixedly connected to the surface of the rotation frame 41 by bolts, and the surface of the rotation frame 41 is rotatably connected to the main sprocket 432 The bottom end of the main sprocket 432 passes through the self-rotating frame 41 and is fixedly connected to the output end of the self-rotating motor 42. Adjustment seats 434 are installed at both ends of the self-rotating frame 41 and on one side of the main sprocket 432. The surface of the adjustment seat 434 is rotatably connected with a slave sprocket 435, and the slave sprocket 435 and the main sprocket 432 are transmission-connected through a self-rotating chain 433. The adjustment assembly 44 is composed of a fixed seat 441, an adjustment plate 442, an adjustment bolt 443 and an adjustment sprocket 444. The fixed seat 441 is fixedly connected to the surface of the self-rotating frame 41, and the interior of the fixed seat 441 is slidingly connected with the adjustment plate 442. The surface of the adjustment plate 442 is rotatably connected with the adjustment sprocket 444, and the adjustment sprocket 444 and the self-rotating chain 433 are transmission-coordinated with each other. The surface of the fixed seat 441 is threadedly connected with an adjustment bolt 443 through a vertical block, and one end of the adjustment bolt 443 is rotationally connected with the adjustment plate 442.

[0032] During implementation, the transmission chain group 43 on the surface of the rotating frame 41 is driven to rotate by the rotating motor 42. When the transmission chain group 43 rotates, the rotating chain 433 and the sprocket in the middle of the rotating frame 71 are engaged with each other by adjusting the adjusting component 44, thereby driving the sled to rotate. During rotation, the spraying work is realized by the spraying robot 6, thereby realizing two spraying methods of copying and rotating, and expanding the scope of use.

[0033] Furthermore, if Figure 7 as well as Fig.10 As shown, a transmission energy-saving mechanism 8 is also provided between the feeding conveyor line 2 and the unloading conveyor line 3. The transmission energy-saving mechanism 8 includes a gear seat 81, a small gear 82 and an adjusting part 83. The gear seat 81 is provided with two groups. The two groups of gear seats 81 are fixedly connected to the surface of the feeding rack 21 or the unloading rack 31 by bolts. The surface of the gear seat 81 is rotatably connected with the small gear 82. The adjusting part 83 is connected to the end of the feeding rack 21 or the unloading rack 31 away from the gear seat 81. The adjusting part 83 is composed of an adjusting side plate 831, a shaft rod 832, a large gear 833 and an adjusting screw 834. The adjusting side plate 831 is fixedly connected to the surface of the feeding rack 21 or the unloading rack 31. , and an axis rod 832 is provided on the inner wall of the adjusting side plate 831, and a large gear 833 is fixed on the surface of the axis rod 832, and adjusting screws 834 are connected to both ends of the adjusting side plate 831, and the adjusting screw 834 and the axis rod 832 are rotatably connected to each other, and in the docking state, the large gear 833 and the small gear 82 are meshed with each other, and the transmission energy-saving mechanism 8 is convenient for docking transmission and conveying adjustment work; a spraying robot 6 is also installed on one side of the spraying room 1, and the spraying robot 6 is composed of a base 61 and a mechanical arm 62, the base 61 is fixedly connected to the inside of the spraying room 1, and a mechanical arm 62 is installed on the top of the base 61, and the mechanical arm 62 is used for spraying the product.

[0034] During implementation, energy saving can be achieved by docking the loading conveyor line 2 and the unloading conveyor line 3. During specific implementation, the unloading conveyor line 3 is placed on one side of the loading conveyor line 2 so that the large gear 833 is directly meshed with the small gear 82 or is meshed through a toothed belt. Subsequently, the locking screw 322 is loosened so that the sprocket chain module 321 and the unloading roller 33 are loosened from each other. At this time, the loading servo motor 22 in the loading conveyor line 2 can drive the loading conveyor line 2 and the unloading conveyor line 3 to move as a whole, thereby saving one motor and achieving the purpose of driving two conveyor lines with one motor. At the same time, after the spray chamber 1 and the loading conveyor line 2 are separated, they can be used separately by tightening the locking screw 322, thereby improving the flexibility of the skid in and out of the material, reducing the energy loss phenomenon, and finally completing the use of the automobile automatic spraying production line.

[0035] The present invention solves the problem that contour spraying on the sled line is conducive to positioning difficulty in rotary spraying; solves the problem that the sled is easy to slide due to inertia after starting and stopping rotary spraying on the sled line; by changing the traditional idea of ​​using a servo motor for the self-rotating motor, an ordinary motor with a brake is used according to the working conditions, thereby avoiding the problem of high failure rate of using a servo motor; by processing the self-rotating program and the robot program in the same PLC, the problem of communication delay between different PLCs is solved; by adopting a gearbox ratio method, the sensor senses the wheel to calculate the number of revolutions, thereby solving the problem that the high-speed running sled cannot respond to the deceleration sensor signal in time.

[0036] Working principle: when in use, first select contour spraying or rotary spraying according to needs. When contour spraying, place the sprayed part to be contoured on the surface of the contour frame 51, and realize the spraying work through the spraying robot 6. When rotary spraying is required, place the sprayed part to be rotated on the surface of the rotating frame 71, and realize the rotation of the sled body through the rotation mechanism 4. When the rotation mechanism 4 is implemented, the transmission chain group 43 on the surface of the rotating frame 41 is driven to rotate by the rotation motor 42. When the transmission chain group 43 rotates, the rotation chain 433 is engaged with the sprocket in the middle of the rotating frame 71 by adjusting the adjustment component 44, thereby driving the sled body to rotate. When rotating, the spraying work is realized by the spraying robot 6, thereby realizing two spraying methods of contour spraying and rotation, and expanding the scope of use.

[0037] Energy saving can be achieved by docking the loading conveyor line 2 and the unloading conveyor line 3 during transportation. In specific implementation, the unloading conveyor line 3 is placed on one side of the loading conveyor line 2 so that the large gear 833 is directly meshed with the small gear 82 or is meshed through a toothed belt. Subsequently, the locking screw 322 is loosened so that the sprocket chain module 321 and the unloading roller 33 are loosened from each other. At this time, the loading servo motor 22 in the loading conveyor line 2 can drive the loading conveyor line 2 and the unloading conveyor line 3 to move as a whole, thereby saving one motor and achieving the purpose of driving two conveyor lines with one motor. At the same time, after the spray chamber 1 and the loading conveyor line 2 are separated, they can be used separately by locking the locking screw 322, thereby improving the flexibility of the skid in and out of the material, reducing the energy loss phenomenon, and finally completing the use of the automobile automatic spraying production line.

[0038] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An automobile automatic spray painting production line, comprising a spray painting room (1), characterized in that: A door (12) is hingedly connected to one side of the bottom of the spraying room (1); an operating table (13) is fixed on the surface of the spraying room (1) and located on one side of the door (12); the operating table (13) is used for spraying operations; a feed port (14) is arranged on the left side of the spraying room (1), and a discharge port (15) is arranged on the right side of the spraying room (1); a feeding conveyor line (2) is installed inside the spraying room (1), and one end of the feeding conveyor line (2) passes through the feed port (14). A material port (14) extends to the outside of the spraying room (1); a material discharge conveying line (3) is arranged on one side of the material feeding conveying line (2); one end of the material discharge conveying line (3) passes through the material discharge port (15) and extends to the outside of the spraying room (1); a contour spraying part (5) and a rotary spraying part (7) are respectively arranged on the surface of the material feeding conveying line (2); the contour spraying part (5) and the rotary spraying part (7) are respectively used for contour spraying and rotary spraying; the spraying room ( 1) A self-rotating mechanism (4) is connected to one side of the feeding conveyor line (2), and the self-rotating mechanism (4) is used to drive the rotating spraying part (7) to rotate. The self-rotating mechanism (4) is composed of a self-rotating frame (41), a self-rotating motor (42), a transmission chain group (43) and an adjustment component (44). The self-rotating frame (41) is fixedly connected to the inside of the spraying room (1), and the surface of the self-rotating frame (41) is provided with a transmission chain group (43). A self-rotating motor (42) is installed on one side of the bottom of the self-rotating frame (41), and the self-rotating motor (42) is used to drive the transmission chain group (43) to move. The surface of the self-rotating frame (41) is also provided with an adjustment component (44), and the adjustment component (44) is used to adjust the transmission chain group (43). A transmission energy-saving mechanism (8) is also provided between the feeding conveyor line (2) and the unloading conveyor line (3), and the transmission energy-saving mechanism (8) is convenient for docking transmission and conveying adjustment work;The transmission energy-saving mechanism (8) comprises a gear seat (81), a pinion (82) and an adjusting part (83), wherein the gear seat (81) is provided with two groups, and the two groups of gear seats (81) are fixedly connected to the surface of the loading rack (21) or the unloading rack (31) by bolts, and the surface of the gear seat (81) is rotatably connected to the pinion (82), and the adjusting part (83) is connected to one end of the loading rack (21) or the unloading rack (31) away from the gear seat (81). A sprayer is also installed on one side of the spray chamber (1). A manipulator (6), the spraying manipulator (6) is composed of a base (61) and a mechanical arm (62), the base (61) is fixedly connected to the inside of the spraying room (1), and the top of the base (61) is equipped with a mechanical arm (62), the mechanical arm (62) is used for spraying products, the adjustment component (44) is composed of a fixed seat (441), an adjustment plate (442), an adjustment bolt (443) and an adjustment sprocket (444), the fixed seat (441) is fixedly connected to the surface of the self-rotating frame (41), and The interior of the fixed seat (441) is slidably connected to an adjustment plate (442), the surface of the adjustment plate (442) is rotatably connected to an adjustment sprocket (444), and the adjustment sprocket (444) and the self-rotating chain (433) are mutually transmission-coordinated, the surface of the fixed seat (441) is threadedly connected to an adjustment bolt (443) through a vertical block, and one end of the adjustment bolt (443) is rotatably connected to the adjustment plate (442), and the adjustment portion (83) is composed of an adjustment side plate (831), a shaft (832), a large gear (833), and a plurality of gears (834). and an adjusting screw (834), the adjusting side plate (831) being fixedly connected to the surface of the loading rack (21) or the unloading rack (31), and a shaft (832) being provided on the inner wall of the adjusting side plate (831), and a large gear (833) being fixed to the surface of the shaft (832), the adjusting screws (834) being connected at both ends of the adjusting side plate (831), and the adjusting screws (834) and the shaft (832) being rotatably connected to each other, and in a docking state, the large gear (833) and the small gear (82) are meshed with each other. ; 2. The automobile automatic spraying production line according to claim 1 is characterized in that: A vent (11) is provided on the side wall at the top of the spraying room (1), and a fan (16) is fixed at the top of the spraying room (1) and above the vent (11), and the fan (16) is used for ventilation inside and outside the spraying room (1).

3. The automobile automatic spraying production line according to claim 1 is characterized in that: The feeding conveyor line (2) is composed of a feeding frame (21), a feeding servo motor (22), a feeding roller (23) and a feeding belt (24); the feeding frame (21) is installed inside the spray chamber (1), and the surface of one side of the feeding frame (21) is fixedly connected to the feeding servo motor (22); the left and right sides of the feeding frame (21) are both rotatably connected to the feeding rollers (23), and the feeding belt (24) is wound between adjacent feeding rollers (23); and the feeding roller (23) on the right side is fixedly connected to the output end of the feeding servo motor (22) via a sprocket chain.

4. The automobile automatic spraying production line according to claim 1 is characterized in that: The unloading conveyor line (3) is composed of an unloading frame (31), an unloading servo motor (32), an unloading roller (33) and an unloading belt (34); the unloading frame (31) is fixedly connected to the inside of the spray chamber (1), and the left and right ends of the unloading frame (31) are rotatably connected to the unloading rollers (33); a unloading servo motor (32) is installed on one side of the surface of the unloading frame (31), and a sprocket chain module (321) is fixed to the output end of the unloading servo motor (32), and the other end of the sprocket chain module (321) is detachably connected to the unloading roller (33) via a locking screw (322).

5. The automobile automatic spraying production line according to claim 1 is characterized in that: The transmission chain assembly (43) comprises a mounting seat (431), a main sprocket (432), a self-rotating chain (433), an adjustment seat (434) and a slave sprocket (435); the mounting seat (431) is fixedly connected to the surface of the self-rotating frame (41) by means of bolts, the main sprocket (432) is rotatably connected to the surface of the self-rotating frame (41), the bottom end of the main sprocket (432) penetrates the self-rotating frame (41) and is fixedly connected to the output end of the self-rotating motor (42); the adjustment seats (434) are mounted at both ends of the self-rotating frame (41) and are located on one side of the main sprocket (432), the surface of the adjustment seat (434) is rotatably connected to the slave sprocket (435), and the slave sprocket (435) and the main sprocket (432) are transmission-connected via the self-rotating chain (433).

6. The automobile automatic spraying production line according to claim 1 is characterized in that: The profiling spraying section (5) is composed of a profiling frame (51) and a sled to be shaped (52), wherein the profiling frame (51) is fixedly connected to the surface of the spraying room (1), and the sled to be shaped (52) is placed on the surface of the profiling frame (51); the rotary spraying section (7) is composed of a rotating frame (71) and a sled to be rotated (72), wherein the rotating frame (71) is rotationally connected to the surface of the self-rotating frame (41), and the sprocket on the surface of the rotating frame (71) is transmission-connected to the self-rotating chain (433), and the sled to be rotated (72) is placed on the surface of the rotating frame (71).

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