Automatic furniture plane painting machine

Abstract

The invention discloses an automatic furniture plane painting machine which comprises a rack placed above the ground, a conveying frame is fixedly installed above the rack, and a conveying roller is rotationally installed on the conveying frame; the lifting frame is fixedly installed on the inner side of the conveying frame, and a conveying regulation and control mechanism is installed on the lifting frame and used for regulating and controlling the painting range, so that paint waste is avoided; the spraying assembly is arranged on the inner side of the painting bin, swing spraying and lifting control are achieved, and the painting uniformity is improved; the lifting regulation and control assembly is arranged between the conveying regulation and control mechanism and the spraying assembly and used for realizing lifting regulation and control of the spraying assembly according to regulation and control of the painting range; and the transmission assembly is arranged between the spraying assembly and the shaft end of the conveying roller. According to the automatic furniture plane painting machine, the using number of the spray heads can be automatically adjusted and controlled according to the size of furniture plates, paint waste is reduced, the spraying height of the spray heads can be synchronously adjusted, and the painting uniformity is effectively improved in cooperation with swing type spraying.

Description

An automated furniture surface painting machine Technical Field

[0001] This invention relates to the technical field of furniture painting, specifically to an automated furniture flat surface painting machine. Background Technology

[0002] In the furniture production and processing process, in order to improve the service life and aesthetics of furniture wood, a painting machine is needed to paint the outside of the furniture board. However, existing furniture painting machines still have some shortcomings.

[0003] In the prior art, such as the high-efficiency spray painting system for solid wood furniture production disclosed in CN113560064A, a base plate is provided with a support plate on the left side of the upper surface of the base plate, a vertical plate is fixedly connected to the right end of the upper surface of the base plate, a top plate is fixedly connected to the left surface of the vertical plate, a spray painting mechanism is provided on the lower surface of the top plate, and a paint box is fixedly connected to the right surface of the vertical plate. This high-efficiency spray painting system for solid wood furniture production, through the coordination of a base plate, pallet, vertical plate, top plate, spraying mechanism, paint tank, paint pump, bend pipe, and tee pipe, places the solid wood furniture workpiece to be painted on the upper surface of the pallet. The horizontal pipe and the first spray head can move back and forth together, allowing the paint sprayed by the first spray head to be sprayed more evenly and efficiently onto the upper surface of the solid wood furniture workpiece. The paint layer thickness on the upper surface of the workpiece is uniform, and the quality of the painted surface is improved. However, during use, the evenly distributed spray heads result in a fixed paint spraying range. However, the different dimensions of some furniture boards at different locations mean that there is no board underneath the spray head when it is spraying, resulting in paint waste.

[0004] For example, a surface painting device for furniture manufacturing, disclosed in CN115055320A, includes a conveyor frame symmetrically arranged. Wood is placed on top of the conveyor frame, and a flipping clamping mechanism is arranged between the conveyor frames. The flipping clamping mechanism includes horizontal mounting blocks slidably installed at the bottom of the conveyor frame, symmetrically arranged. A flipping frame is rotatably mounted between the horizontal mounting blocks, and a clamping frame is installed on the flipping frame. A clamping hydraulic cylinder is installed on the clamping frame and connected to a clamping head. There are two flipping clamping mechanisms, symmetrically arranged at both ends of the conveyor frame. The flipping clamping mechanism clamps wood with different gears and adjusts the clamping height. Combined with the painting mechanism, it achieves rotary painting of the wood, and with the drying mechanism, it quickly dries the wood, accelerating painting efficiency and quality. Although the spray width of the spray head can be adjusted, the amount of paint sprayed from the spray head is uniform, resulting in uneven paint distribution on the outer side of the furniture board. Furthermore, it is inconvenient to automatically control during the board conveying process, exhibiting certain usage defects. Summary of the Invention

[0005] The purpose of this invention is to provide an automated furniture flat surface painting machine to solve the problem mentioned in the background art that current furniture flat surface painting machines on the market are inconvenient to automatically adjust the spraying range according to the volume of the board to reduce paint waste.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automated furniture flat painting machine, comprising a frame placed above the ground, a conveyor frame fixedly installed above the frame, a conveyor roller rotatably installed on the conveyor frame, a paint tank fixedly installed on the conveyor frame, a liquid tank installed at the upper end of the paint tank, and a pump body installed on the outside of the liquid tank for conveying paint.

[0007] Also includes:

[0008] A hanger is fixedly installed inside the conveyor frame. The hanger is equipped with a conveyor control mechanism to control the painting area and avoid paint waste.

[0009] The spray assembly is located inside the paint tank, enabling oscillating spraying and lifting control to improve paint uniformity.

[0010] The lifting and adjusting component is located between the conveying and adjusting mechanism and the spraying component, and is used to adjust the lifting and lowering of the spraying component according to the adjustment of the painting range.

[0011] The transmission component is located between the spray assembly and the end of the conveyor roller shaft. It drives the spray assembly to perform oscillating spraying by rotating the conveyor roller.

[0012] Preferably, the conveying control mechanism includes a control button installed inside the hanger, and a lifting plate is installed on the inner side of the hanger. A guide column is fixedly installed on the lower surface of the lifting plate, and the guide column passes through the hanger and forms a lifting structure with it. A first spring connects the lifting plate and the hanger.

[0013] By adopting the above technical solution, the lifting plate can be elastically lowered after being pressed, thereby squeezing the control button to start the pump and complete the automatic painting.

[0014] Preferably, support blocks are uniformly fixedly installed on the lifting plate, and control blocks are elastically installed on the lifting plate by means of a second spring. The lower end of the control block is in concave-convex fit with the upper end of the support block, and the elastic force of the second spring is greater than that of the first spring. At the same time, the upper end of the control block facing the plate conveying side is set with an inclined structure.

[0015] By adopting the above technical solution, when the furniture board is conveyed, the control block at the corresponding position can be squeezed, so that the control block pushes the lifting plate down and then adjusts the lifting and lowering with the support block.

[0016] Preferably, the pump body is connected to the paint tank via a pipe, and the output end of the pump body is connected to an infusion pipe. The lower end of the infusion pipe is evenly connected to a flexible tube, and a sleeve is fitted on the outside of the flexible tube. Meanwhile, the upper end of the flexible tube is connected to a nozzle, and the flexible tube passes through the lower ends of the support block and the control block.

[0017] By adopting the above technical solution, when the control block is not squeezed by the plate, the support block and the control block will bend the hose, causing the hose to deform and close, thereby preventing the corresponding connected nozzles from spraying and avoiding paint waste.

[0018] Preferably, the spray assembly includes two first sliders symmetrically slidably installed in vertical grooves on the inner wall of the paint tank, and a rotating shaft is rotatably connected between the two first sliders. A mounting bracket is fixedly installed on the outer side of the rotating shaft, and spray nozzles are uniformly fixedly installed on the mounting bracket.

[0019] By adopting the above technical solution, the rotating shaft can drive multiple spray heads to rotate through the mounting bracket, thereby improving the spraying effect.

[0020] Preferably, the transmission assembly includes a transmission disc rotatably mounted on the first slider on the left and a second slider slidably mounted in a horizontally opened groove on the upper paint tank. A fourth spring is connected between the second slider and the inner wall of the horizontally opened groove. A transmission wheel is rotatably mounted on the outer side of the second slider. The transmission disc, the transmission wheel, and the shaft of the conveying roller are connected by a transmission belt.

[0021] By adopting the above technical solution, when the conveyor roller is performing conveying work, the transmission belt can drive the transmission disc to rotate synchronously.

[0022] Preferably, a sliding column is fixedly installed on the outer side of the transmission disk, and a linkage component is fixedly installed on the outer side of the rotating shaft. The linkage component is provided with a strip-shaped guide groove, and the sliding column and the guide groove are slidably connected.

[0023] By adopting the above technical solution, when the transmission disc rotates, the rotating shaft can be driven to reciprocate through the linkage, thereby enabling the spray head to perform oscillating spraying and improving the uniformity of paint spraying.

[0024] Preferably, the lifting control component includes a pressure plate fixedly installed on the hanger, and an air storage bag is connected between the pressure plate and the lower end of the control block. The air storage bag is connected to an air collection pipe through an air supply pipe, and the air collection pipe is connected to an elastic air bag through an air guide pipe.

[0025] By adopting the above technical solution, when the control block moves upward, it can compress the gas storage bladder, allowing some of the gas in the gas storage bladder to enter the elastic bladder through the gas delivery pipe, gas collection pipe, and gas guide pipe, thereby adjusting the expansion volume of the elastic bladder.

[0026] Preferably, the elastic airbag is installed in the vertical groove on the left side of the upper paint chamber and connected between the inner wall of the groove and the first slider, and a third spring is connected between the first slider on the right side and the vertical groove on the right side of the upper paint chamber.

[0027] By adopting the above technical solution, the popping of the control block can change the expansion volume of the elastic airbag, thereby adjusting the position and height of the nozzle according to the number of popping of the control block.

[0028] Compared with the prior art, the beneficial effects of the present invention are: the automated furniture flat painting machine can automatically adjust the number of spray nozzles used according to the volume of the furniture board, reducing paint waste, and can synchronously adjust the spraying height of the spray nozzles, and in conjunction with the oscillating spraying, effectively improve the uniformity of painting, as detailed below;

[0029] 1. Equipped with control blocks, support blocks, and hoses, when the conveyor rollers transport the furniture boards, the furniture boards will squeeze the corresponding control blocks, causing the control blocks and support blocks to rise and fall, straightening the hoses between the support blocks and control blocks, thus keeping the corresponding spray nozzles unobstructed. The control blocks that are not in contact with the boards remain in their original positions, and the support blocks and control blocks squeeze and deform the hoses through misalignment, thereby blocking them and preventing the corresponding spray nozzles from spraying. This ensures that only the spray nozzles above the boards function normally, effectively avoiding paint waste.

[0030] 2. It is equipped with a first slider, an air reservoir and an elastic air bladder. As the control block moves upward, it will squeeze the air reservoir, causing some of the gas in the air reservoir to enter the elastic air bladder, which will cause the elastic air bladder to expand and increase in volume, thereby pushing the first slider upward and automatically adjusting the position of the nozzle. This avoids the increase in spraying pressure of the nozzle during operation due to changes in the number of nozzles used, which would affect the uniformity of paint application.

[0031] 3. It is equipped with a rotating shaft, a transmission disc, and a transmission belt. The transmission belt enables the conveyor roller to drive the transmission disc to rotate synchronously, and the transmission disc drives the rotating shaft to rotate back and forth through the linkage. This allows the spray head to perform reciprocating oscillating spraying, effectively improving the painting effect. Attached Figure Description

[0032] Figure 1 is a three-dimensional structural diagram of the present invention;

[0033] Figure 2 is a three-dimensional structural diagram of the conveyor frame of the present invention;

[0034] Figure 3 is a schematic diagram of the control block installation structure of the present invention;

[0035] Figure 4 is a schematic diagram of the connection structure between the support block and the control block of the present invention;

[0036] Figure 5 is a three-dimensional structural diagram of the hose and infusion tube of the present invention;

[0037] Figure 6 is a schematic diagram of the installation structure of the spray assembly of the present invention;

[0038] Figure 7 is a schematic cross-sectional view of the paint tank structure of the present invention;

[0039] Figure 8 is an enlarged structural schematic diagram of point A in Figure 6 of the present invention;

[0040] Figure 9 is a schematic diagram of the installation structure of the linkage component of the present invention.

[0041] In the diagram: 1. Frame; 2. Conveyor frame; 3. Conveyor roller; 4. Hanger; 401. Pressure plate; 5. Control button; 6. Lifting plate; 7. Guide column; 8. First spring; 9. Support block; 10. Control block; 11. Second spring; 12. Hose; 13. Infusion tube; 14. Sleeve; 15. Paint tank; 16. Liquid tank; 17. Pump body; 18. First slider; 1801. Third spring; 19. Rotating shaft; 20. Mounting bracket; 21. Nozzle; 22. Transmission disc; 2201. Sliding column; 23. Second slider; 24. Fourth spring; 25. Transmission wheel; 26. Transmission belt; 27. Linkage component; 28. Guide groove; 29. ​​Air reservoir; 30. Air inlet pipe; 31. Air collection pipe; 32. Air guide pipe; 33. Elastic airbag. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please refer to Figures 1-9. The present invention provides a technical solution: an automated furniture flat painting machine, including a frame 1 placed above the ground, a conveyor frame 2 fixedly installed above the frame 1, a conveyor roller 3 rotatably installed on the conveyor frame 2, a paint tank 15 fixedly installed on the conveyor frame 2, a liquid tank 16 installed at the upper end of the paint tank 15, and a pump body 17 installed on the outside of the liquid tank 16 for conveying paint.

[0044] It also includes: a hanger 4, fixedly installed inside the conveyor frame 2, with a conveying control mechanism installed on the hanger 4 to control the painting range and avoid paint waste; a spray assembly, located inside the paint tank 15, to realize swing spraying and lifting control, improving the uniformity of painting; the conveying control mechanism includes a control button 5 installed inside the hanger 4, and a lifting plate 6 is installed on the inner side of the hanger 4, with a guide post 7 fixedly installed on the lower surface of the lifting plate 6, the guide post 7 passing through the hanger 4 and forming a lifting structure with it, and a first spring 8 connecting the lifting plate 6 and the hanger 4. Support blocks 9 are evenly fixedly installed on the lifting plate 6, and a control block 10 is elastically installed on the lifting plate 6 through a second spring 11, with the lower end of the control block 10 engaging with the upper end of the support block 9, and the elastic force of the second spring 11 being greater than that of the first spring 8, and the upper end of the control block 10 facing the conveying of the board having an inclined structure. The pump body 17 is connected to the paint tank 15 via a pipe, and the output end of the pump body 17 is connected to an infusion pipe 13. A flexible tube 12 is evenly connected to the lower end of the infusion pipe 13, and a sleeve 14 is fitted over the outer side of the flexible tube 12. A nozzle 21 is connected to the upper end of the flexible tube 12, which passes through the lower ends of the support block 9 and the control block 10. The spray assembly includes two first sliders 18 symmetrically slidably mounted in vertical grooves on the inner wall of the paint tank 15. A rotating shaft 19 is rotatably connected between the two first sliders 18, and a mounting bracket 20 is fixedly mounted on the outer side of the rotating shaft 19. Nozzles 21 are evenly fixedly mounted on the mounting bracket 20.

[0045] As shown in Figures 1-5, the furniture board to be painted is placed on the conveyor roller 3 for conveying. When the board approaches the inclined surface of the control block 10, it will squeeze and push the control block 10 downward, causing the control block 10 to push the lifting plate 6 downward synchronously through the second spring 11. The lifting plate 6 presses the control button 5, thereby starting the pump body 17 to realize the conveying of paint. As the board continues to move, the control block 10 will continue to move downward, thereby elastically adjusting with the support block 9. This straightens the hose 12 that runs through the support block 9 and the control block 10, ensuring that the hose 12 can convey paint normally. At this time, the pump body 17 can convey the paint in the liquid tank 16 to the nozzle 21 through the infusion pipe 13 and the hose 12 to paint the board. The control block 10, which is not in contact with the board, remains in its original position, causing it to be misaligned with the support block 9, thereby squeezing the corresponding hose 12 and causing the hose 12 to become blocked. This prevents the nozzle 21 from spraying when it is not passing over the board, thus achieving effective paint saving.

[0046] A lifting and regulating component is located between the conveying and regulating mechanism and the spraying component. It is used to adjust the lifting and lowering of the spraying component according to the painting range. The lifting and regulating component includes a pressure plate 401 fixedly installed on the hanger 4. An air storage bag 29 is connected between the pressure plate 401 and the lower end of the control block 10. The air storage bag 29 is connected to an air collecting pipe 31 through an air supply pipe 30. The air collecting pipe 31 is connected to an elastic air bag 33 through an air guide pipe 32. The elastic air bag 33 is installed in the vertical groove on the left side of the paint tank 15 and is connected between the inner wall of the groove and the first slider 18. A third spring 1801 is connected between the first slider 18 on the right side and the vertical groove on the right side of the paint tank 15.

[0047] As shown in Figures 4 and 6-8, when the control block 10 moves upward, its lower end will cooperate with the pressure plate 401 to squeeze the air storage bag 29, so that some of the gas in the air storage bag 29 enters the elastic air bag 33 through the air supply pipe 30, the air collection pipe 31, and the air guide pipe 32, thereby causing the elastic air bag 33 to expand elastically. As the volume of the elastic air bag 33 increases, it can push the first slider 18 to rise and adjust along the vertical groove opened on the inner wall of the paint tank 15, thereby avoiding the increase in spraying pressure of the spray nozzle 21 during operation due to the change in the number of spray nozzles 21 used, which would affect the uniformity of paint application.

[0048] A transmission assembly is located between the spray assembly and the shaft end of the conveyor roller 3. The rotation of the conveyor roller 3 drives the spray assembly to perform oscillating spraying. The transmission assembly includes a transmission disc 22 rotatably mounted on the first slider 18 on the left side and a second slider 23 slidably mounted in a horizontally opened groove on the upper paint tank 15. A fourth spring 24 connects the second slider 23 to the inner wall of the horizontally opened groove. A transmission wheel 25 is rotatably mounted on the outer side of the second slider 23. The transmission disc 22, the transmission wheel 25, and the shaft of the conveyor roller 3 are connected by a transmission belt 26. A sliding column 2201 is fixedly mounted on the outer side of the transmission disc 22, and a linkage 27 is fixedly mounted on the outer side of the rotating shaft 19. The linkage 27 has a strip-shaped guide groove 28, and the sliding column 2201 and the guide groove 28 are slidably connected.

[0049] As shown in Figures 7-9, as the first slider 18 slides, the second slider 23 slides synchronously under the elastic force of the fourth spring 24, thus keeping the transmission belt 26 taut. When the conveyor roller 3 rotates, it can drive the transmission disk 22 to rotate synchronously through the transmission belt 26, causing the sliding column 2201 on the outer side of the transmission disk 22 to slide back and forth along the guide groove 28 of the linkage 27, thereby driving the linkage 27 to drive the rotating shaft 19 to rotate synchronously. This causes the spray nozzle 21 under the mounting bracket 20 to spray when it swings back and forth, thus effectively improving the uniformity of paint application.

[0050] In summary, when using this automated furniture flat surface painting machine, firstly, as shown in Figures 1-9, the furniture board is conveyed by the conveyor roller 3, and the control button 5 moves down under the pressure of the board, thereby realizing the automatic opening of the pump body 17 and the adjustment of the working state of the nozzles 21 at different positions. This ensures that the painting operation is only performed when the board passes by, thus saving paint. At the same time, the nozzles 21 can adjust the spraying height according to the number of times the control block 10 pops up. Combined with the reciprocating rotation and oscillating spraying, the uniformity of the paint application can be effectively improved, thereby completing a series of tasks.

[0051] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0052] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automated furniture surface painting machine, comprising a frame (1) placed above the ground, a conveyor frame (2) fixedly installed above the frame (1), a conveyor roller (3) rotatably mounted on the conveyor frame (2), a paint tank (15) fixedly installed on the conveyor frame (2), a liquid tank (16) installed at the upper end of the paint tank (15), and a pump body (17) installed on the outside of the liquid tank (16) for conveying paint; characterized in that, Also includes: The hanger (4) is fixedly installed inside the conveyor frame (2). The hanger (4) is equipped with a conveyor control mechanism to control the painting range and avoid paint waste. The spray assembly is set inside the paint tank (15) to realize swing spraying and lifting control, and improve the uniformity of painting. The lifting and adjusting component is located between the conveying and adjusting mechanism and the spraying component, and is used to adjust the lifting and lowering of the spraying component according to the adjustment of the painting range. The transmission component is located between the spray assembly and the shaft end of the conveyor roller (3), and drives the spray assembly to perform oscillating spraying by rotating the conveyor roller (3).

2. The automated furniture surface painting machine according to claim 1, characterized in that: The conveying control mechanism includes a control button (5) installed inside the hanger (4), and a lifting plate (6) is installed on the inner side of the hanger (4). A guide column (7) is fixedly installed on the lower surface of the lifting plate (6). The guide column (7) passes through the hanger (4) and forms a lifting structure with it. A first spring (8) is connected between the lifting plate (6) and the hanger (4).

3. The automated furniture surface painting machine according to claim 2, characterized in that: Support blocks (9) are evenly fixedly installed on the lifting plate (6), and control blocks (10) are elastically lifted and lowered on the lifting plate (6) by a second spring (11). The lower end of the control block (10) and the upper end of the support block (9) are in concave-convex fit. The elastic force of the second spring (11) is greater than that of the first spring (8). At the same time, the upper end of the control block (10) facing the plate conveying side is set with an inclined structure.

4. An automated furniture surface painting machine according to claim 1, characterized in that: The pump body (17) is connected to the paint tank (15) by a pipe, and the output end of the pump body (17) is connected to the infusion pipe (13). The lower end of the infusion pipe (13) is evenly connected to the hose (12), and the outer side of the hose (12) is fitted with a sleeve (14). At the same time, the upper end of the hose (12) is connected to the nozzle (21). The hose (12) passes through the lower end of the support block (9) and the control block (10).

5. An automated furniture surface painting machine according to claim 1, characterized in that: The spray assembly includes two first sliders (18) symmetrically slidably installed in the vertical grooves of the inner wall of the paint tank (15), and a rotating shaft (19) is rotatably connected between the two first sliders (18). A mounting bracket (20) is fixedly installed on the outside of the rotating shaft (19), and spray nozzles (21) are uniformly fixedly installed on the mounting bracket (20).

6. An automated furniture surface painting machine according to claim 5, characterized in that: The transmission assembly includes a transmission disc (22) rotatably mounted on the first slider (18) on the left side and a second slider (23) slidably mounted in a horizontally opened groove on the upper paint tank (15). A fourth spring (24) is connected between the second slider (23) and the inner wall of the horizontally opened groove. A transmission wheel (25) is rotatably mounted on the outer side of the second slider (23). The shafts of the transmission disc (22), the transmission wheel (25) and the conveying roller (3) are connected by a transmission belt (26).

7. An automated furniture surface painting machine according to claim 6, characterized in that: A sliding column (2201) is fixedly installed on the outer side of the transmission disk (22), and a linkage component (27) is fixedly installed on the outer side of the rotating shaft (19). A strip-shaped guide groove (28) is provided on the linkage component (27), and the sliding column (2201) and the guide groove (28) are slidably connected.

8. An automated furniture surface painting machine according to claim 1, characterized in that: The lifting control assembly includes a pressure plate (401) fixedly installed on the hanger (4), and an air storage bag (29) is connected between the pressure plate (401) and the lower end of the control block (10). The air storage bag (29) is connected to an air collection pipe (31) through an air supply pipe (30), and the air collection pipe (31) is connected to an elastic air bag (33) through an air guide pipe (32).

9. An automated furniture surface painting machine according to claim 8, characterized in that: The elastic airbag (33) is installed in the vertical groove on the left side of the upper paint chamber (15) and connected between the inner wall of the groove and the first slider (18). A third spring (1801) is connected between the first slider (18) on the right side and the vertical groove on the right side of the upper paint chamber (15).

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