A fully automatic two-color spraying machine and its two-color spraying method

Abstract

The present invention provides a fully automatic two-color spraying machine and its two-color spraying method. The motor drives two round tubes to rotate in place on the frame. A spraying trolley is arranged on the frame to move along the extension direction of the round tubes. At the same time, sensors arranged at intervals continuously detect the position of the spraying trolley. When the odd-numbered sensors detect the spraying trolley, the two spraying heads spray paint. As the spraying trolley moves, when the even-numbered sensors detect the spraying trolley, the two spraying heads stop spraying paint, ensuring that the spraying trolley just moves a distance equal to two spraying widths during the intermittent process of the spraying heads. Finally, the round tubes are sprayed with staggered two-color paint by the spraying heads during the rotation process. The fully automatic two-color spraying machine and its two-color spraying method of the present invention can save a large amount of time compared with the previous manual spraying method, and make the paint distribution on the surface of the round tubes more uniform and shiny, which well solves the problem of time-consuming and laborious in painting and coloring the round tubes.

Description

Technical Field

[0001] The present invention belongs to the field of painting equipment, and particularly relates to a full-automatic two-color painting machine and a two-color painting method thereof. Background Art

[0002] Rust removal and painting of round pipes are very common in the processing process, and are an essential part of producing finished products in both the manufacturing industry and the construction industry. For the construction industry, those safety guardrails with alternating colors are also applicable, but the usual practice is to manually brush the first coat of primer, wait for the paint to dry, then wrap adhesive tape at the dividing line, and then spray the second color in sections. Manual two-color painting not only consumes a large amount of adhesive tape, but also is time-consuming and laborious. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a full-automatic two-color painting machine and a two-color painting method thereof, which are used to overcome the above problems or at least partially solve or alleviate the above problems.

[0004] The present invention provides a full-automatic two-color painting machine for two-color painting of round pipes, including:

[0005] A frame, on the upper part of which there is a track, in the front part of which there is a motor box, in which there is a motor and a rotating sleeve, the main shaft of the motor is directly or indirectly connected to the rotating sleeve in a transmission manner, in the rear part of which there is a loading and unloading box, in which there is a passive sleeve, and the round pipe is fixed between the rotating sleeve and the passive sleeve;

[0006] A painting trolley, which is matched with the track, on one side of which there is a stop block, and on which there are two spraying head machines and two paint buckets, different colors of paint are contained in the two paint buckets, the inlet of each spraying head machine is led into one of the paint buckets through a suction pipe, and the outlet of each spraying head machine is connected with a spray pipe and a spray head, and the spray head faces the round pipe;

[0007] A traction mechanism, which is arranged on the frame and is connected with the painting trolley;

[0008] A control cabinet, which is arranged on the frame, on which there are control keys, the signal output end of the control cabinet is electrically connected to the signal input end of the spraying head machine, the signal input end of the control cabinet is electrically connected with a plurality of sensors, the sensors are fixed on one side of the frame at equal intervals, and the probes of the sensors are vertically upward for detecting the stop block.

[0009] The present invention also has the following optional features.

[0010] Optionally, the traction mechanism includes: a traction motor, a driving sprocket, a driven sprocket, and a transmission chain; the traction motor is fixed below the front part of the frame, the driving sprocket is in transmission connection with the main shaft of the traction motor, the driven sprocket is rotatably arranged below the rear part of the frame, the transmission chain is sleeved between the driving sprocket and the driven sprocket, and the transmission chain is connected to the lower part of the paint spraying trolley.

[0011] Optionally, the paint spraying trolley includes a vehicle frame and a carriage, the carriage is fixed on the vehicle frame, a connecting rib is connected between the lower part of the vehicle frame and the transmission chain, and the stop block is fixed on one side of the carriage.

[0012] Optionally, a connecting plate is hinged on the carriage, a wire brush is arranged on the connecting plate, and when the connecting plate is turned to the upper part of the round tube, the wire brush contacts the surface of the round tube.

[0013] Optionally, a loading and unloading track is arranged on the frame, the loading and unloading box is slidably arranged on the loading and unloading track, a spring is arranged between the frame and the loading and unloading box, and the spring pushes the loading and unloading box towards the front part of the frame.

[0014] Optionally, a driving shaft and a driven shaft are also rotatably arranged in the motor box, the driving shaft is connected to the main shaft of the motor, the driving shaft and the driven shaft are in transmission connection through a pair of gear sets, a rotating sleeve is respectively arranged on the driving shaft and the driven shaft, correspondingly, a pair of driven sleeves are rotatably arranged in the loading and unloading box, and a round tube can be installed between each rotating sleeve and a driven sleeve.

[0015] Optionally, two suspension rods are fixed on the carriage, the spray nozzles are respectively fixed on one suspension rod and extend above between the two round tubes.

[0016] The present invention also provides a full-automatic two-color paint spraying method, which uses the above-mentioned full-automatic two-color paint spraying machine. The two ends of the round tube are respectively sleeved in the rotating sleeve and the driven sleeve, the motor is started to drive the round tube to rotate; the traction mechanism is started to drive the paint spraying trolley to move along the track on the frame. When the sensor at the odd position detects the stop block on the paint spraying trolley, the two spray nozzle machines start to spray paint on the round tube. When the sensor at the even position detects the stop block, the two spray nozzle machines stop spraying paint.

[0017] The full-automatic two-color painting machine and its two-color painting method of the present invention drive two round tubes to rotate in place on a frame through a motor. A painting trolley is arranged on the frame to move along the extension direction of the round tubes. At the same time, sensors arranged at intervals continuously detect the position of the painting trolley. When an odd-numbered sensor detects the painting trolley, the two spraying heads spray paint. As the painting trolley moves, when an even-numbered sensor detects the painting trolley, the two spraying heads stop spraying paint, ensuring that when the spraying heads are intermittent, the painting trolley just moves a distance equal to two painting widths. Finally, the round tubes are sprayed with staggered two-color paint during the rotation process. The full-automatic two-color painting machine and its two-color painting method of the present invention can save a large amount of time compared with the previous manual painting method, and make the paint distribution on the surface of the round tubes more uniform and shiny, which well solves the problem of time-consuming and laborious painting of round tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the full-automatic two-color painting machine of the present invention;

[0019] Figure 2 is a schematic diagram of another angle of the overall structure of the full-automatic two-color painting machine of the present invention;

[0020] Figure 3 is a schematic diagram of the structure of the rear part of the full-automatic two-color painting machine of the present invention;

[0021] Figure 4 is a schematic diagram of the partial structure of the front part of the full-automatic two-color painting machine of the present invention;

[0022] Figure 5 is a schematic diagram of the structure of the painting trolley of the full-automatic two-color painting machine of the present invention.

[0023] In the above figures: 1 round tube; 2 frame; 3 track; 4 motor box; 5 motor; 6 rotating sleeve; 7 loading and unloading box; 8 passive sleeve; 9 painting trolley; 10 stop block; 11 spraying head; 12 paint bucket; 13 spray pipe; 14 spray head; 15 control cabinet; 16 control key; 17 sensor; 18 traction motor; 19 driving sprocket; 20 driven sprocket; 21 drive chain; 22 vehicle frame; 23 carriage; 24 connecting rib; 25 connecting plate; 26 wire brush; 27 loading and unloading track; 28 spring; 29 gear set; 30 suspension rod.

[0024] The present invention will be further described in detail below with reference to the drawings and embodiments. DETAILED DESCRIPTION OF THE INVENTION

[0025] Embodiment 1

[0026] Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 andFigure 5 , an embodiment of the present invention provides a fully automatic two-color painting machine for two-color painting of a round pipe 1, including: a frame 2, a painting trolley 9, a traction mechanism, and a control cabinet 15; a track 3 is arranged on the upper part of the frame 2, a motor box 4 is arranged at the front part of the frame 2, a motor 5 and a rotating sleeve 6 are arranged in the motor box 4, the main shaft of the motor 5 is directly or indirectly connected to the rotating sleeve 6 in a transmission manner, a loading and unloading box 7 is arranged at the rear part of the frame 2, a passive sleeve 8 is arranged in the loading and unloading box 7, and the round pipe 1 is fixed between the rotating sleeve 6 and the passive sleeve 8; the painting trolley 9 is matched with the track 3, a stop block 10 is arranged on one side of the painting trolley 9, two spray head machines 11 and two paint buckets 12 are arranged on the painting trolley 9, different colors of paint are contained in the two paint buckets 12, the inlet of each spray head machine 11 is led into a paint bucket 12 through a suction pipe, the outlet of each spray head machine 11 is connected with a spray pipe 13 and a spray head 14, and the spray head 14 faces the round pipe 1; the traction mechanism is arranged on the frame 2 and is connected with the painting trolley 9; the control cabinet 15 is arranged on the frame 2, a control key 16 is arranged on the control cabinet 15, the signal output end of the control cabinet 15 is electrically connected with the signal input end of the spray head machine 11, the signal input end of the control cabinet 15 is electrically connected with a plurality of sensors 17, the sensors 17 are fixedly arranged at equal intervals on one side of the frame 2, and the probes of the sensors 17 face vertically upward for detecting the stop block 10.

[0027] During use, first loosen the loading and unloading box 7, and clamp both ends of the round pipe 1 with the rotating sleeve 6 and the passive sleeve 8 respectively; finally, control the two spray head machines 12 to spray paint through the control cabinet 15, check whether the spray heads 14 are normal and whether they are blocked, and finally make the control cabinet 15 run automatically. Drive the painting trolley 9 to move forward along the track 3 by controlling the traction mechanism. When the stop block 10 under the painting trolley 9 is detected by the sensors 17 at odd positions, the two spray head machines 12 on the painting trolley 9 start to spray paint. When the stop block 10 under the painting trolley 9 is detected by the sensors 17 at even positions, the two spray head machines 9 stop spraying paint, and the effect of automatically achieving two colors alternately distributed on the round pipe 1 will be achieved.

[0028] Embodiment 2

[0029] Reference Figure 2 and Figure 3 , on the basis of Embodiment 1, the traction mechanism includes: a traction motor 18, a driving sprocket 19, a driven sprocket 20, and a transmission chain 21; the traction motor 18 is fixed below the front part of the frame 2, the driving sprocket 19 is connected to the main shaft of the traction motor 18 in a transmission manner, the driven sprocket 20 is rotatably arranged below the rear part of the frame 2, the transmission chain 21 is sleeved between the driving sprocket 19 and the driven sprocket 20, and the transmission chain 21 is connected to the lower part of the painting trolley 9.

[0030] The traction motor 18 drives the driving sprocket 19 to rotate. A transmission chain 21 is sleeved between the driving sprocket 19 and the driven sprocket 20. Therefore, the transmission chain 21 and the driven sprocket 20 also rotate accordingly. Since the distance between the driving sprocket 19 and the driven sprocket 20 is far enough, the transmission chain 21 is taut between them, and its upper part moves linearly, which can drive the painting trolley 9 to move linearly along the track 3.

[0031] Embodiment 3

[0032] Reference Figure 3 and Figure 4 , on the basis of Embodiment 2, the painting trolley 9 includes a vehicle frame 22 and a carriage 23. The carriage 23 is fixed on the vehicle frame 22. A connecting rib 24 is connected between the lower part of the vehicle frame 22 and the transmission chain 21. The stop block 10 is fixed on one side of the carriage 23.

[0033] When the transmission chain 21 moves, it will drive the vehicle frame 22 to move along the track 3 through the connecting rib 24, and then drive the carriage 23 to move, and the stop block 10 also moves accordingly.

[0034] Embodiment 4

[0035] Reference Figure 1 and Figure 4 , on the basis of Embodiment 3, a connecting plate 25 is hinged on the carriage 23, and a wire brush 26 is arranged on the connecting plate 25. When the connecting plate 25 is flipped to the upper part of the round tube 1, the wire brush 26 contacts the surface of the round tube 1.

[0036] After loading the round tube 1 on the rack 2, before painting, first flip the connecting plate 25 downward to the upper part of the round tube 1 to make the wire brush 26 contact the surface of the round tube 1. Start the motor 5 through the control cabinet 15 to drive the round tube 1 to rotate, and then drive the painting trolley 9 to reciprocate along the track 3 through the traction mechanism, and the rust on the entire round tube 1 will be brushed clean by the wire brush 26.

[0037] Embodiment 5

[0038] Reference Figure 2 , on the basis of Embodiment 1, a loading and unloading track 27 is arranged on the rack 2. The loading and unloading box 7 is slidably arranged on the loading and unloading track 27. A spring 28 is arranged between the rack 2 and the loading and unloading box 7, and the spring 28 pushes the loading and unloading box 7 towards the front of the rack 2.

[0039] When the loading and unloading box 7 is slid backward along the loading and unloading track 27 by turning the wrench, the spring 28 is compressed, and the passive sleeve 8 also moves backward with the loading and unloading box 7, so that one end of the round tube 1 can be pulled out from the sleeve 8, and then the round tube 1 can be unloaded.

[0040] Embodiment 6

[0041] Reference Figure 2 and Figure 3, on the basis of Embodiment 1, a driving shaft and a driven shaft are rotatably arranged in the motor box 4. The driving shaft is connected to the main shaft of the motor 5. The driving shaft and the driven shaft are in transmission connection through a pair of gear sets 29. A rotating sleeve 6 is arranged on each of the driving shaft and the driven shaft. Correspondingly, a pair of driven sleeves 8 are rotatably arranged in the loading and unloading box 7. A circular tube 1 can be installed between each rotating sleeve 6 and a driven sleeve 8.

[0042] The driving shaft and the driven shaft are rotatably arranged side by side in the motor box 4 and are in transmission connection through a pair of gear sets 29. When the motor 5 drives the driving shaft to rotate, the driven shaft rotates in the opposite direction. The driving shaft and the driven shaft respectively drive a circular tube 1 to rotate through a rotating tube 6.

[0043] Embodiment 7

[0044] Reference Figure 1 and Figure 4 , on the basis of Embodiment 6, two suspension rods 30 are fixed on the carriage 23. The spray nozzles 14 are respectively fixed on a suspension rod 30 and extend above the space between the two circular tubes 1.

[0045] The spray nozzles 14 can spray paint on both sides. The spray nozzles 14 are fixed on the suspension rods 30 and extend downward into the space between the two circular tubes 1 to spray paint on the two circular tubes 1 simultaneously.

[0046] Embodiment 8

[0047] An embodiment of the present invention provides a method for double-color spraying of circular tubes, which is implemented by using the fully automatic double-color spraying machine in any one of the above. Specifically: both ends of the circular tube 1 are respectively sleeved in the rotating sleeve 5 and the driven sleeve 8, and the motor 5 is started to drive the circular tube 1 to rotate; the traction mechanism is started to drive the spraying trolley 9 to move along the track 3 on the frame 1. When the sensor 17 at the odd position detects the block 10 on the spraying trolley 9, the two spraying heads 12 start to spray paint on the circular tube 1. When the sensor 17 at the even position detects the block 10, the two spraying heads 12 stop spraying paint.

[0048] In specific implementation, first loosen the loading and unloading box 7, and clamp both ends of the round tube 1 with the rotating sleeve 6 and the passive sleeve 8 respectively; then lower the connecting plate 25 to make the wire brush 26 contact the round tube 1, turn on the power supply, start the motor 5 through the control key 16 on the control cabinet 15 to rotate the round tube 1, and then control the painting trolley 9 to reciprocate along the track 3 on the frame 2 to remove rust from the round tube 1. After the rust removal is completed, lift the connecting plate 25 to separate the wire brush 26 from the round tube 1; finally, control the two spray head machines 12 to spray paint through the control cabinet 15, check whether the spray heads 14 are normal and whether they are blocked, and finally make the control cabinet 15 run automatically to make the painting trolley 9 move forward automatically. When the block 10 under the painting trolley 9 is detected by the sensor 17 at an odd position, the two spray head machines 12 on the painting trolley 9 start to spray paint. When the block 10 under the painting trolley 9 is detected by the sensor 17 at an even position, the two spray head machines 9 stop spraying paint, and the effect of two colors being alternately distributed on the round tube 1 will be automatically achieved.

[0049] As described above, it is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims. The components and structures not described in detail in this embodiment are well-known components and common structures or common means in this industry, and will not be described one by one here.

Claims

1. A fully automatic two-color spraying machine for two-color spraying of a round tube (1), characterized in that, Comprising: A frame (2), on the upper part of the frame (2) there is a track (3), at the front of the frame (2) there is a motor box (4), in the motor box (4) there are a motor (5) and a rotating sleeve (6), the main shaft of the motor (5) is directly or indirectly drivingly connected to the rotating sleeve (6), at the rear of the frame (2) there is a loading and unloading box (7), in the loading and unloading box (7) there is a passive sleeve (8), and the circular tube (1) is fixed between the rotating sleeve (6) and the passive sleeve (8); A paint spraying trolley (9), the paint spraying trolley (9) is matched with the track (3), on one side of the paint spraying trolley (9) there is a stop block (10), on the paint spraying trolley (9) there are two spraying head machines (11) and two paint buckets (12), different colors of paint are contained in the two paint buckets (12), the inlet of each spraying head machine (11) is led into one of the paint buckets (12) through a suction pipe, the outlet of each spraying head machine (11) is connected with a spray pipe (13) and a spray head (14), and the spray head (14) faces the circular tube (1); A traction mechanism, the traction mechanism is arranged on the frame (2) and is connected with the paint spraying trolley (9); A control cabinet (15), the control cabinet (15) is arranged on the frame (2), on the control cabinet (15) there are control keys (16), the signal output end of the control cabinet (15) is electrically connected with the signal input end of the spraying head machine (11), the signal input end of the control cabinet (15) is electrically connected with a plurality of sensors (17), the sensors (17) are fixedly arranged at equal intervals on one side of the frame (2), the probes of the sensors (17) are vertically upward for detecting the stop block (10); when an odd-numbered sensor (17) detects the paint spraying trolley (9), the two spraying head machines (11) spray paint, when an even-numbered sensor (17) detects the paint spraying trolley (9), the two spraying head machines (11) stop spraying paint, ensuring that the paint spraying trolley (9) just moves a distance of two paint spraying widths during the intermittent process of the spraying head machine (11); On the frame (2) there is a loading and unloading track (27), the loading and unloading box (7) is slidably arranged on the loading and unloading track (27), between the frame (2) and the loading and unloading box (7) there is a spring (28), and the spring (28) pushes the loading and unloading box (7) towards the front of the frame (2); A driving shaft and a driven shaft are rotatably arranged in the motor box (4). The driving shaft is connected to the main shaft of the motor (5). The driving shaft and the driven shaft are in transmission connection through a pair of gear sets (29). A rotating sleeve (6) is arranged on each of the driving shaft and the driven shaft. Correspondingly, a pair of driven sleeves (8) are rotatably arranged in the loading and unloading box (7). A round tube (1) can be installed between each rotating sleeve (6) and a driven sleeve (8). The painting trolley (9) includes a carriage (23). Two suspension rods (30) are fixed on the carriage (23). The spray nozzles (14) are respectively fixed on one suspension rod (30) and extend above between the two round tubes (1).

2. The fully automatic two-color spraying machine according to claim 1, wherein The traction mechanism includes a traction motor (18), a driving sprocket (19), a driven sprocket (20) and a transmission chain (21). The traction motor (18) is fixed below the front part of the frame (2). The driving sprocket (19) is in transmission connection with the main shaft of the traction motor (18). The driven sprocket (20) is rotatably arranged below the rear part of the frame (2). The transmission chain (21) is sleeved between the driving sprocket (19) and the driven sprocket (20). The transmission chain (21) is connected to the lower part of the painting trolley (9).

3. The full-automatic two-color spraying machine according to claim 2, wherein, The painting trolley (9) further includes a vehicle frame (22). The carriage (23) is fixed on the vehicle frame (22). A connecting rib (24) is connected between the lower part of the vehicle frame (22) and the transmission chain (21). The stop block (10) is fixed on one side of the carriage (23).

4. The fully automatic two-color paint spraying machine according to claim 3, wherein, A connecting plate (25) is hinged on the carriage (23). A wire brush (26) is arranged on the connecting plate (25). When the connecting plate (25) is turned over to the upper part of the round tube (1), the wire brush (26) contacts the surface of the round tube (1).

5. A method for two-color spraying of round tubes, which is implemented by using the full-automatic two-color spraying machine described in any one of claims 1 to 4, characterized in that, The two ends of the round tube (1) are respectively sleeved in the rotating sleeve (6) and the driven sleeve (8). The motor (5) is started to drive the round tube (1) to rotate. The traction mechanism is started to drive the painting trolley (9) to move along the track (3) on the frame (2). When the sensors (17) at odd positions detect the stop block (10) on the painting trolley (9), the two spray nozzle machines (11) start to spray paint on the round tube (1). When the sensors (17) at even positions detect the stop block (10), the two spray nozzle machines (11) stop spraying paint.

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