Guitar processing and spraying production line

Abstract

The invention discloses a guitar processing and spraying production line, and relates to the technical field of guitar spraying, the guitar processing and spraying production line comprises a conveyor belt, a spraying bin is arranged above the conveyor belt, a U-shaped frame is arranged in the spraying bin, a fixing column is arranged on the inner wall of the U-shaped frame, a motor is arranged at the end part of the fixing column, a sliding rod is arranged in the fixing column, and the sliding rod is connected with the motor. The two sliding rods are clamped with reserved openings in the two ends of a guitar body respectively, the conveying belt comprises a plurality of blocking strips distributed at equal intervals, the blocking strips are located in a U-shaped frame, a protruding plate is arranged on the inner wall of the U-shaped frame, a first fixing plate and a second fixing plate are arranged below the protruding plate, and the first fixing plate and the second fixing plate are connected with the U-shaped frame. According to the device, the spraying box and the rotating guitar body are in an equidistant state all the time, the receiving amount of sprayed paint in all areas of the guitar body is more average, and the overall spraying quality of the guitar body can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of guitar spraying, in particular to a guitar processing spraying production line. Background Art

[0002] Guitar, also translated as guitar or six-stringed instrument, is a plucked instrument, usually with six strings, similar in shape to a violin. Guitar is often regarded as the main instrument in pop music, rock music, blues, and folk songs. During the production and processing of guitars, the surface needs to be sprayed with paint.

[0003] There are two common spraying methods at present, namely manual spraying and mechanical spraying. Mechanical spraying has become a commonly used spraying method in the market due to its high spraying efficiency and suitability for large-scale production. In the actual spraying process, the position of the paint outlet of the spraying machine is usually fixed, and the guitar body is rotated at a low speed to achieve multi-area paint coverage. However, since the guitar body is generally a flat three-dimensional structure, the distance between the spraying point and the guitar body will increase or decrease with the rotation of the guitar body, while the content of paint discharged by the spraying equipment is equal, which makes the paint content attached to the plane and side of the guitar body different, resulting in uneven paint on the entire guitar body, reducing the overall spraying quality of the guitar.

[0004] To this end, the present invention proposes a guitar processing spraying production line. Summary of the invention

[0005] The purpose of the present invention is to provide a guitar processing spraying production line to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: a guitar processing spraying production line, including a conveyor belt, a spraying bin is provided above the conveyor belt, a U-shaped frame is provided inside the spraying bin, a fixed column is provided on the inner wall of the U-shaped frame, a motor is provided at the end of the fixed column, a sliding rod is provided inside the fixed column, there are two sliding rods, which are respectively engaged with the reserved openings at both ends of the guitar body, the conveyor belt includes a plurality of equidistantly distributed baffles, the baffles are located inside the U-shaped frame, a protruding plate is provided on the inner wall of the U-shaped frame, a fixed plate 1 and a fixed plate 2 are provided below the protruding plate, and the bottom surfaces of the fixed plate 1 and the fixed plate 2 are fixedly connected to the side plates of the conveyor belt; A spray box is provided on one side of the U-shaped frame, and a connecting pipe is provided on the outer wall of the spray box. The connecting pipe is connected to an external paint supply device, and a spray unit is provided above the fixed plate 1 to drive the spray box to maintain an equidistant distance from the outer wall of the piano body.

[0006] Preferably, the spray unit includes a connecting rod located on one side of the spray box, the connecting rods are two in total, the outer wall of the connecting rod is provided with a C-shaped frame, the interior of the C-shaped frame is provided with a spring, the bottom of the spray box is provided with a baffle, one side of the baffle is provided with a cam, the interior of the cam is provided with an axis body 1, the axis body 1 is rotatably connected to a fixed plate 1 through a fixed frame, the two side plates of the conveyor belt are respectively provided with a fixed plate 3 and a fixed plate 4, one side of the fixed plate 3 is provided with an axis body 2 and an axis body 3, and one side of the fixed plate 4 is provided with an axis body A shaft body 4 and a shaft body 5 are provided above the fixed plate 2, and the shaft body 6 is rotatably connected to the fixed plate 2 through a fixed frame, and the shaft bodies 1, 2, 3, 4, 5 and 6 are all mutually driven by belts, a flat gear 1 is provided on the outer wall of the shaft body 6, a flat gear 2 meshing with the flat gear 1 is provided on one side of the flat gear 1, a shaft body 7 is provided inside the flat gear 2, a bending rod is provided on the outer wall of the shaft body 7, and the end of the bending rod is fixedly connected to the U-shaped frame, and the shaft body 7 and the motor shaft are mutually driven by belts.

[0007] Preferably, two auxiliary parts for spraying the upper and lower end areas of the guitar body are provided above the spray box, the auxiliary parts include a special-shaped tube located above the spray box, the outer wall of the special-shaped tube is provided with a bent tube, the end of the bent tube is provided with a spray cover, the end of the spray cover is directly opposite to the end area of ​​the guitar body, the outer wall of the bent tube is provided with a bending strip, the end of the bending strip is provided with a vertical rod, the outer wall of the vertical rod is provided with a cylinder, the cylinder is located above the fixed plate and fixedly connected thereto, the inner wall of the C-shaped frame is provided with a fixed column and slidably connected thereto, the fixed column is fixedly connected to the inner wall of the spray bin, a connecting strip is provided on one side of the U-shaped frame, the end of the connecting strip is provided with an inclined plate, the inclined area of ​​the inclined plate is in contact with the outer wall surface of the spray box.

[0008] Preferably, a drying bin is provided above the conveyor belt, a drying device is provided on the outer wall of the drying bin, a shaft body 8 is provided inside the drying bin, the shaft body 8 is rotatably connected to the fixed plate 2 through a fixed frame, a spur gear 3 is provided on the outer wall of the shaft body 8, the spur gear 3 is meshed with the spur gear 2 in the horizontal direction, a bevel gear 1 is provided inside the shaft body 8, a bevel gear 2 meshing with the bevel gear 1 is provided on one side of the bevel gear 1, a shaft body 9 is provided inside the bevel gear 2, the shaft body 9 is rotatably connected to the inner wall of the drying bin through a fixed frame, and a rotating plate is provided on the outer wall of the shaft body 9.

[0009] Preferably, the wind force generated by the rotating plate rotating along the axis body 9 collides with the wind body discharged by the drying equipment, and pushes the drying wind body back to the outer wall of the piano body.

[0010] Preferably, two cotton bodies are provided at the outlet end of the drying chamber, and a circular hole is formed between the two cotton bodies for the end of the instrument body to pass through the cotton bodies.

[0011] Preferably, the motor is electrically connected to the conveyor belt. When the motor is running, the conveyor belt stops conveying. When the conveyor belt is running, the motor stops running, and the motor drives the piano body to rotate to be perpendicular to the wall of the conveyor belt.

[0012] The present invention has at least the following beneficial effects: 1. In the present invention, during the rotation of the guitar body, paint liquid can be injected into the interior of the spray box, and the motor will cause the flat gear 2 and the flat gear 1 to transmit to each other, thereby driving the cam on the outer wall of the shaft body 1 to rotate. Since the outer wall of the rotating cam is in contact with the baffle, the cam will push the spray box to move horizontally, and as the cam rotates, the spring at the end of the connecting rod will pull the baffle under the spray box to always fit with the outer wall of the cam, so that the spray box and the rotating guitar body are always equidistant, so that the amount of spray paint received by each area of ​​the guitar body is more even, which is beneficial to improving the overall quality of the guitar body spraying.

[0013] 2. In the present invention, dry air is simultaneously fed from the top and both inner walls of the drying chamber to the central area. Along with the rotation effect of the motor on the guitar body, multiple areas of the guitar body will be dried by the gas, preventing the paint body that has just been sprayed from flowing due to gravity, and helping the paint body to be quickly fixed. At the same time, during the drying process, bevel gear 1 and bevel gear 2 mesh with each other, thereby driving the rotating plate on the outer wall of shaft body 9 to rotate. The wind force generated by the rotation of the rotating plate collides with the air body discharged by the drying equipment, and pushes the drying air body back to the outer wall of the guitar body, perpendicular to the air body discharged by the drying equipment, and performs secondary drying of the guitar surface by the air body, further improving the drying effect of the guitar body and improving the production quality of guitars. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the spray chamber and drying chamber structure of the present invention; Figure 3 For the present invention Figure 2 A magnified view of the structure of the middle A area; Figure 4 It is a cross-sectional view of the spray unit structure of the present invention; Figure 5 For the present invention Figure 4 A magnified view of the structure of the middle B area; Figure 6 For the present invention Figure 4 A magnified view of the structure of the middle C region; Figure 7 This is a cross-sectional view of the U-shaped frame structure of the present invention; Figure 8 For the present invention Figure 7A magnified view of the structure of the middle D region; Fig. 9 For the present invention Figure 4 Enlarged view of the structure of region E in the middle.

[0015] In the figure: 1- conveyor belt; 2- spray chamber; 3- U-shaped frame; 4- fixed column; 5- motor; 6- slide bar; 7- baffle bar; 8- protruding plate; 9- fixed plate 1; 10- fixed plate 2; 11- spray box; 12- connecting pipe; 13- spray unit; 14- connecting rod; 15- C-shaped frame; 16- spring; 17- baffle plate; 18- cam; 19- shaft body 1; 20- fixed plate 3; 21- fixed plate 4; 22- shaft body 2; 23- shaft body 3; 24- shaft body 4; 25- shaft body Five; 26-axis six; 27-flat gear one; 28-flat gear two; 29-axis seven; 30-bending rod; 31-auxiliary parts; 32-special-shaped tube; 33-bending tube; 34-spraying hood; 35-bending strip; 36-vertical rod; 37-cylinder; 38-connecting strip; 39-inclined plate; 40-drying bin; 41-drying equipment; 42-axis eight; 43-flat gear three; 44-bevel gear one; 45-bevel gear two; 46-axis nine; 47-rotating plate; 48-cotton body. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1-9 The present invention provides a technical solution: a guitar processing spraying production line, comprising: Embodiment 1, A conveyor belt 1 is provided with a spraying bin 2 above the conveyor belt 1, the bottom of the spraying bin 2 is fixedly connected to the side plate of the conveyor belt 1, a U-shaped frame 3 is provided inside the spraying bin 2, a fixed column 4 is provided on the inner wall of the U-shaped frame 3 and is rotatably connected thereto, a motor 5 is provided at the end of the fixed column 4, the rotating shaft of the motor 5 is connected to the fixed column 4 through a coupling, and can drive the fixed column 4 to rotate, a slide bar 6 is provided inside the fixed column 4 and is slidably connected thereto, there are two slide bars 6, which are respectively engaged with the reserved openings at both ends of the guitar body, and the guitar body is driven to rotate through the engaging effect of the slide bar 6 and the guitar body, the motor 5 is electrically connected to the conveyor belt 1, and when the motor 5 is running, the conveyor belt 1 stops. Stop conveying, when the conveyor belt 1 is running, the motor 5 stops running (the start-stop relationship between the motor 5 and the conveyor belt 1 is controlled by an external device through a program, which belongs to the prior art), and the motor 5 drives the piano body to rotate to be perpendicular to the wall surface of the conveyor belt 1, the conveyor belt 1 includes a plurality of equally spaced baffles 7, the baffles 7 are located inside the U-shaped frame 3, the conveyor belt 1 can drive the U-shaped frame 3 to convey through the baffles 7, the inner wall of the U-shaped frame 3 is provided with a protruding plate 8 and fixedly connected thereto, a fixed plate 1 9 and a fixed plate 2 10 are provided below the protruding plate 8 and are slidably connected to the two, and the bottom surfaces of the fixed plate 1 9 and the fixed plate 2 10 are fixedly connected to the side plates of the conveyor belt 1; A spray box 11 is provided on one side of the U-shaped frame 3. The spray box 11 is in the shape of a long strip. The length of the spray box 11 is equal to the length of the guitar body. A connecting pipe 12 is provided on the outer wall of the spray box 11 and is connected to the outer wall. The connecting pipe 12 is made of flexible material and is connected to an external paint supply device. A spray unit 13 is provided above the fixed plate 9 to drive the spray box 11 to maintain an equidistant distance from the outer wall of the guitar body. Through the cooperation of the conveyor belt 1 and the U-shaped frame 3, the guitar body can be driven for transportation to ensure the connection of various processes of the production line. At the same time, the spray unit 13 can be inside the spray bin 2 to achieve equidistant spraying of various areas of the guitar body, so that the paint content attached to the plane and side of the guitar body is close, so that the paint body of the entire guitar body is more uniform, thereby improving the overall spraying quality of the guitar.

[0018] The spray unit 13 includes a connecting rod 14 located on one side of the spray box 11, and the end of the connecting rod 14 is fixedly connected to the spray box 11. There are two connecting rods 14. The outer wall of the connecting rod 14 is provided with a C-shaped frame 15 and is slidably connected to it. A spring 16 is provided inside the C-shaped frame 15. The two ends of the spring 16 are respectively fixedly connected to the C-shaped frame 15 and the connecting rod 14. A baffle 17 is provided at the bottom of the spray box 11 and is fixedly connected thereto. A cam 18 is provided on one side of the baffle 17. The outer wall surface of the cam 18 contacts the baffle 17. A shaft body 19 is provided inside the cam 18 and is fixedly connected thereto. The shaft body 19 is rotatably connected to the fixed plate 9 through a fixed frame. The two side plates of the conveyor belt 1 are respectively provided with a fixed plate 3 20 and a fixed plate 4 21, and the sides of the fixed plate 3 20 and the fixed plate 4 21 are fixedly connected to the side plates of the conveyor belt 1, and one side of the fixed plate 3 20 is provided with a shaft body 22 and a shaft body 3 23 and are rotatably connected to the two, and one side of the fixed plate 4 21 is provided with a shaft body 4 24 and a shaft body 5 25 and are rotatably connected to the two, and a shaft body 6 26 is provided above the fixed plate 2 10, and the shaft body 6 26 is rotatably connected to the fixed plate 2 10 through a fixed frame, and the shaft body 19, the shaft body 22, the shaft body 3 23, the shaft body 4 24, the shaft body 5 25 and the shaft body 6 26 are mutually driven by belts, and the shaft body 6 26 is A flat gear 27 is provided on the outer wall and fixedly connected thereto, a flat gear 28 meshing therewith is provided on one side of the flat gear 27, a shaft 7 29 is provided inside the flat gear 28 and fixedly connected thereto, a bending rod 30 is provided on the outer wall of the shaft 7 29 and rotationally connected thereto, the end of the bending rod 30 is fixedly connected to the U-shaped frame 3, and the shaft 7 29 and the rotating shaft of the motor 5 are mutually transmitted through a belt; when the conveyor belt 1 drives the U-shaped frame 3 to move to a state where the flat gear 28 and the flat gear 1 27 are meshed with each other, the conveyor belt 1 stops moving, and the motor 5 will start automatically, and then through a series of transmission effects, the spray unit 13 is driven to start spraying the piano body at equal intervals.

[0019] In addition, two auxiliary parts 31 are provided above the spray box 11 for spraying the upper and lower end areas of the instrument body respectively. The auxiliary part 31 includes a special-shaped tube 32 located above the spray box 11. The end of the special-shaped tube 32 is connected to the spray box 11. The outer wall of the special-shaped tube 32 is provided with a bending tube 33 and is slidably connected to it. The end of the bending tube 33 is provided with a spray cover 34 and is fixedly connected to it. The end of the spray cover 34 is opposite to the end area of ​​the instrument body, so that the sprayed paint body can act on this area (the spray cover 34 and the spray box 11 both have an atomization function, which is used to improve the uniformity of spraying, and belongs to the prior art), realizing all-round spraying of the instrument body and improving the uniformity of paint spraying.

[0020] The outer wall of the bending tube 33 is provided with a bending strip 35 and fixedly connected thereto, the end of the bending strip 35 is provided with a vertical rod 36 and fixedly connected thereto, the outer wall of the vertical rod 36 is provided with a cylinder 37 and slidably connected thereto, the cylinder 37 is located above the fixed plate 9 and fixedly connected thereto, the inner wall of the C-shaped frame 15 is provided with a fixed column 4 and slidably connected thereto, the fixed column 4 is fixedly connected to the inner wall of the spray chamber 2, a connecting strip 38 is provided on one side of the U-shaped frame 3 and fixedly connected thereto, the end of the connecting strip 38 is provided with an inclined plate 39 and fixedly connected thereto, the inclined area of ​​the inclined plate 39 contacts the outer wall surface of the spray box 11; when the spraying is completed, the conveyor belt 1 can drive the connecting strip 38 and the inclined plate 39 to resist the bottom of the spray box 11, thereby driving the two auxiliary parts 31 to rise to a point higher than the highest point of the piano body, thereby ensuring the smooth operation of the conveyor belt 1.

[0021] When in use, the staff can first use the limit function of the slide bar 6 and the two ends of the piano body to fix the piano body inside the U-shaped frame 3, and then drive the conveyor belt 1 to make the conveyor belt 1 drive the U-shaped frame 3 to move until the flat gear 28 and the flat gear 1 27 are meshed. At this time, the piano body has entered the spray chamber 2, the conveyor belt 1 will stop running, and then the motor 5 will start automatically, driving the fixed column 4 and the slide bar 6 to drive the piano body to rotate; During the rotation of the piano body, paint liquid can be injected into the interior of the spray box 11, and the flat gear 28 will drive the flat gear 1 27 to transmit to each other, and then through the transmission effect of the belt, the shaft 19, shaft 2 22, shaft 3 23, shaft 4 24, shaft 5 25 and shaft 6 26 will be transmitted simultaneously, thereby driving the cam 18 on the outer wall of shaft 19 to rotate. Since the outer wall of the rotating cam 18 is in contact with the baffle 17, the cam 18 will push the spray box 11 to move horizontally, and as the cam 18 rotates, the spring 16 at the end of the connecting rod 14 will pull the baffle 17 under the spray box 11 to always fit with the outer wall of the cam 18, so that the spray box 11 and the rotating piano body are always equidistant, so that the amount of spray paint received by each area of ​​the piano body is more even, which is beneficial to improving the overall quality of the piano body spraying.

[0022] In addition, during the spraying process, the paint liquid inside the spray box 11 will also enter the interior of the bent tube 33 from the special-shaped tube 32 and then be sprayed out from the spray cover 34, effectively spraying the side end area of ​​the guitar body to ensure the integrity of the guitar surface spraying; since the special-shaped tube 32 and the bent tube 33 are slidably connected, and the bent tube 33 is fixedly connected to the bending strip 35, and the bending strip 35 is fixedly connected to the vertical rod 36, when the spray box 11 moves in the direction close to the C-shaped frame 15, the special-shaped tube 32 will be pulled out of the bent tube 33, and will not affect the spraying of the guitar body end by the spray cover 34.

[0023] On the other hand, after the guitar body is sprayed, the motor 5 rotates until the guitar body and the conveyor belt 1 are perpendicular to each other and then stops. In this state, the inclined plate 39 is located below the spray box 11. At this time, the conveyor belt 1 starts again and drives the U-shaped frame 3 for transportation. During this process, the inclined surface of the inclined plate 39 will continue to resist the bottom surface of the spray box 11, thereby pushing the spray box 11 and the bending tube 33 and the spray cover 34 to rise up a distance at the same time, so that the bottom of the two spray covers 34 is higher than the highest point of the guitar body. Transportation in this state can ensure that the U-shaped frame 3 brings the guitar body into the next processing step, thereby ensuring the smoothness of normal operation on the production line.

[0024] According to the above embodiment, embodiment 2, A drying bin 40 is also provided above the conveyor belt 1 and is fixedly connected thereto. A drying device 41 is provided on the outer wall of the drying bin 40 and is fixedly connected thereto. A shaft body 8 42 is provided inside the drying bin 40. The shaft body 8 42 is rotatably connected to the fixed plate 2 10 through a fixed frame. A flat gear 3 43 is provided on the outer wall of the shaft body 8 42 and is fixedly connected thereto. The flat gear 3 43 meshes with the flat gear 2 28 in the horizontal direction. A bevel gear 1 44 is provided inside the shaft body 8 42 and is fixedly connected thereto. A bevel gear 2 45 meshing with the bevel gear 1 44 is provided on one side of the bevel gear 1 44. A shaft body 9 46 is provided inside the bevel gear 2 45 and is fixedly connected thereto. The shaft body 9 46 is rotatably connected to the inner wall of the drying bin 40 through a fixed frame. A rotating plate 47 is provided on the outer wall of the shaft body 9 46 and is fixedly connected thereto. The wind force generated by the rotating plate 47 rotating along the shaft body 9 46 collides with the wind body discharged from the drying device 41, and pushes the drying wind body back to the outer wall of the piano body.

[0025] When the conveyor belt 1 with the U-shaped frame 3 and the guitar body enters the drying chamber 40, the flat gear 28 will mesh with the flat gear 3 43, and then the conveyor belt 1 will stop again, and the motor 5 will run, and the drying device 41 will also work, and the dry wind will be sent to the central area from the top and the inner walls of the drying chamber 40 at the same time. With the rotation effect brought by the motor 5 to the guitar body, multiple areas of the guitar body will be dried by the gas, preventing the paint body that has just been sprayed from flowing due to gravity, and helping the paint body to be quickly fixed. At the same time, during the drying process, the mutual transmission of the flat gear 3 43 and the flat gear 2 28 will drive the bevel gear 1 44 and the bevel gear 2 45 to mesh with each other, and then drive the rotating plate 47 on the outer wall of the shaft body 9 46 to rotate. The wind force generated by the rotation of the rotating plate 47 collides with the wind body discharged by the drying device 41, and pushes the dry wind body back to the outer wall of the guitar body, perpendicular to the wind body discharged by the drying device 41, and performs secondary drying of the guitar surface by the wind body, further improving the drying effect of the guitar body and improving the quality of guitar production.

[0026] In addition, two cotton bodies 48 are provided at the outlet end of the drying chamber 40 and fixedly connected thereto, and a circular hole is formed between the two cotton bodies 48 for the end of the body of the instrument to pass through the cotton body 48. The material of the cotton body 48 is soft. When the U-shaped frame 3 drives the body of the instrument to pass through the through holes of the two cotton bodies 48, the central parts of the two cotton bodies 48 will perform a simple pre-polishing on the outer wall surface of the body of the instrument, providing a favorable effect for the subsequent polishing work of the body of the instrument.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A guitar processing spraying production line, comprising a conveyor belt (1), Features: A spraying chamber (2) is provided above the conveyor belt (1), a U-shaped frame (3) is provided inside the spraying chamber (2), a fixing column (4) is provided on the inner wall of the U-shaped frame (3), a motor (5) is provided at the end of the fixing column (4), a sliding rod (6) is provided inside the fixing column (4), and there are two sliding rods (6) respectively engaged with the reserved openings at both ends of the guitar body, the conveyor belt (1) comprises a plurality of equidistantly distributed baffles (7), the baffles (7) are located inside the U-shaped frame (3), a protruding plate (8) is provided on the inner wall of the U-shaped frame (3), a fixing plate 1 (9) and a fixing plate 2 (10) are provided below the protruding plate (8), and the bottom surfaces of the fixing plate 1 (9) and the fixing plate 2 (10) are fixedly connected to the side plates of the conveyor belt (1); A spray box (11) is provided on one side of the U-shaped frame (3), and a connecting pipe (12) is provided on the outer wall of the spray box (11). The connecting pipe (12) is connected to an external paint supply device, and a spray unit (13) is provided above the fixing plate (9) to drive the spray box (11) to maintain an equidistant distance from the outer wall of the instrument body.

2. The guitar processing spraying production line according to claim 1 is characterized in that: The spraying unit (13) comprises a connecting rod (14) located at one side of the spraying box (11), wherein the connecting rods (14) are two in total, the outer wall of the connecting rod (14) is provided with a C-shaped frame (15), the interior of the C-shaped frame (15) is provided with a spring (16), the bottom of the spraying box (11) is provided with a baffle (17), one side of the baffle (17) is provided with a cam (18), the interior of the cam (18) is provided with a shaft body 1 (19), the shaft body 1 (19) is rotatably connected to a fixed plate 1 (9) through a fixed frame, the two side plates of the conveyor belt (1) are respectively provided with a fixed plate 3 (20) and a fixed plate 4 (21), one side of the fixed plate 3 (20) is provided with a shaft body 2 (22) and a shaft body 3 (23), and one side of the fixed plate 4 (21) is provided with a shaft body 4 (24) ) and shaft body five (25), shaft body six (26) is provided above the fixing plate two (10), and shaft body six (26) is rotatably connected to the fixing plate two (10) through a fixing frame, and shaft body one (19), shaft body two (22), shaft body three (23), shaft body four (24), shaft body five (25) and shaft body six (26) are all mutually driven through belts, and a flat gear one (27) is provided on the outer wall of shaft body six (26), and a flat gear two (28) meshing with the flat gear one (27) is provided on one side of the flat gear one (27), and a shaft body seven (29) is provided inside the flat gear two (28), and a bending rod (30) is provided on the outer wall of the shaft body seven (29), and the end of the bending rod (30) is fixedly connected to the U-shaped frame (3), and the shaft body seven (29) and the rotating shaft of the motor (5) are mutually driven through belts.

3. The guitar processing spraying production line according to claim 2 is characterized in that: Two auxiliary parts (31) are provided above the spray box (11) for spraying the upper and lower end regions of the instrument body respectively. The auxiliary part (31) comprises a special-shaped tube (32) located above the spray box (11). The outer wall of the special-shaped tube (32) is provided with a bending tube (33). The end of the bending tube (33) is provided with a spray cover (34). The end of the spray cover (34) is directly opposite to the end region of the instrument body. The outer wall of the bending tube (33) is provided with a bending strip (35). The end of the bending strip (35) is provided with A vertical rod (36), the outer wall of the vertical rod (36) is provided with a cylinder (37), the cylinder (37) is located above the fixed plate (9) and is fixedly connected thereto, the inner wall of the C-shaped frame (15) is provided with a fixed column (4) and is slidably connected thereto, the fixed column (4) is fixedly connected to the inner wall of the spray chamber (2), a connecting strip (38) is provided on one side of the U-shaped frame (3), an inclined plate (39) is provided at the end of the connecting strip (38), and the inclined area of ​​the inclined plate (39) is in contact with the outer wall surface of the spray box (11).

4. The guitar processing spraying production line according to claim 2, characterized in that: A drying bin (40) is also provided above the conveyor belt (1). A drying device (41) is provided on the outer wall of the drying bin (40). A shaft body (42) is provided inside the drying bin (40). The shaft body (42) is rotatably connected to the fixing plate (10) via a fixing frame. A flat gear (43) is provided on the outer wall of the shaft body (42). The flat gear (43) meshes with the flat gear (28) in the horizontal direction. A bevel gear (44) is provided inside the shaft body (42). A bevel gear (45) meshing with the bevel gear (44) is provided on one side of the bevel gear (44). A shaft body (46) is provided inside the bevel gear (45). The shaft body (46) is rotatably connected to the inner wall of the drying bin (40) via a fixing frame. A rotating plate (47) is provided on the outer wall of the shaft body (46).

5. The guitar processing spraying production line according to claim 4 is characterized in that: The wind force generated by the rotating plate (47) rotating along the shaft body (46) collides with the wind body discharged by the drying device (41), and pushes the drying wind body back to the outer wall of the instrument body.

6. The guitar processing spraying production line according to claim 4, characterized in that: Two cotton bodies (48) are provided at the outlet end of the drying chamber (40), and a circular hole is formed between the two cotton bodies (48) for the end of the instrument body to pass through the cotton body (48).

7. The guitar processing spraying production line according to claim 1, characterized in that: The motor (5) is electrically connected to the conveyor belt (1); when the motor (5) is in operation, the conveyor belt (1) stops conveying; when the conveyor belt (1) is in operation, the motor (5) stops running, and the motor (5) drives the piano body to rotate until it is perpendicular to the wall surface of the conveyor belt (1).

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