A paint spraying device for wood furniture production with easy adjustment
By designing an adjustment mechanism to make the spray pipe and multiple nozzles rotate back and forth together, the problems of low painting efficiency and uneven paint film in existing wood furniture painting devices are solved, achieving efficient and uniform painting effect and simplified pipe layout.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DENGZHOU JIALEBAO FURNITURE CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-07-14
AI Technical Summary
Existing wood furniture painting equipment suffers from problems such as low painting efficiency, uneven paint film, and complex pipeline layout. In particular, the stability is poor when the spray gun is manually held, which affects the product qualification rate.
A painting device including an adjustment mechanism was designed. Through the cooperation of gears, limit grooves, racks, fixing rings and drive components, the spray pipe and multiple nozzles reciprocate together, ensuring consistent paint film uniformity, improving painting efficiency and simplifying the layout of the delivery pipeline.
It achieves uniformity of paint film during the painting process, improves painting efficiency, simplifies the layout of delivery pipelines, and increases product qualification rate.
Smart Images

Figure CN224486430U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wood furniture production technology, specifically to a paint spraying device for wood furniture production that is easy to adjust. Background Technology
[0002] In the production process of wooden furniture, in order to protect the wood substrate, optimize the appearance of the product, improve the user experience, and enhance the practicality and durability of the product, spray painting equipment used in the production of wooden furniture is usually used to spray paint on the surface of the wood.
[0003] When using existing spray painting equipment, one method involves transporting wooden boards via a conveyor belt. After the wood is transported to the processing position, the spray nozzle moves along a preset trajectory. The oil in the paint tank is pumped out by a pump and then sprayed onto the surface of the wood through the spray nozzle. Another method involves workers using handheld spray guns to spray paint onto the surface of the wood.
[0004] Existing spray painting equipment has the following problems: the former usually uses a moving nozzle to spray paint the surface of wood along a preset trajectory, which results in low efficiency in wood painting. If multiple nozzles work together, the conveying pipes may become entangled, requiring high precision in the arrangement of the conveying pipes. The latter involves manual hand-held spray guns, which may result in uneven paint film due to poor stability and inconsistent movement speed, affecting the product qualification rate. Therefore, we propose a spray painting device for wood furniture production that is easy to adjust. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a paint spraying device for the production of wooden furniture that is easy to adjust. During the paint spraying process, the spray pipe and multiple nozzles are rotated back and forth by the adjustment mechanism, so that the sprayed paint film has a uniformity and the paint spraying efficiency is high. Moreover, there is no need to worry about the layout of the delivery pipeline, which can effectively solve the problems in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a paint spraying device for easy-to-adjust wooden furniture production, including a support frame, an adjustable spray pipe inside the support frame, uniformly distributed spray nozzles on the lower side of the outer surface of the spray pipe, and an adjustment mechanism;
[0007] Adjustment mechanism: It includes gears, limiting grooves, racks, fixing rings, protrusions, circular grooves, and drive components. The gears and fixing rings are fixedly sleeved on the outer surface of the spray pipe. An isolation plate is provided on the upper inner side of the support frame. The rack is slidably connected to the limiting groove on the upper surface of the isolation plate through the drive component. The rack meshes with the gear. Protrusions are provided on both the front and rear sides of the upper surface of the fixing ring. A circular groove is opened on the top wall of the support frame. The protrusions are slidably connected to the inside of a circular groove. During the painting process, the adjustment mechanism makes the spray pipe and multiple nozzles rotate back and forth together, so that the sprayed paint film has a uniformity, the painting efficiency is high, and there is no need to worry about the layout of the delivery pipeline.
[0008] Furthermore, it also includes a microcontroller, which is located on the right side of the support frame. The input terminal of the microcontroller is electrically connected to an external power supply to facilitate the normal operation of the equipment.
[0009] Furthermore, the drive assembly includes a limiting rail, a rotating rod, a connecting rod, and a limiting rod. The left end of the rack is provided with a limiting rail, the top wall of the support frame is rotatably connected to the rotating rod, the lower end of the rotating rod is provided with a connecting rod, and the lower surface of the connecting rod away from the rotating rod is provided with a limiting rod. The limiting rod is slidably connected to the inside of the limiting rail, which facilitates the normal operation of the drive adjustment mechanism.
[0010] Furthermore, the upper surface of the support frame is provided with a motor, the lower end of the output shaft of the motor is fixedly connected to the upper end of the rotating rod, and the input end of the motor is electrically connected to the output end of the microcontroller to provide driving force.
[0011] Furthermore, both the left and right sides of the support frame are rotatably connected to conveyor rollers, and the two conveyor rollers are connected by a conveyor belt. A second motor is provided on the rear side of the support frame. The front end of the output shaft of the second motor is fixedly connected to the rear end of the left rotating shaft. The input end of the second motor is electrically connected to the output end of the microcontroller, which facilitates the transportation of timber.
[0012] Furthermore, a paint tank is provided on the right side of the support frame, and a conveying pipe is provided at the outlet of the lower surface of the paint tank. The lower end of the liquid outlet of the conveying pipe passes through the top wall of the support frame and is rotatably connected to the upper end of the spray pipe to facilitate the supply of paint liquid.
[0013] Furthermore, a pump is connected in series in the middle of the outer surface of the conveying pipe, and the input end of the pump is electrically connected to the output end of the microcontroller, so as to facilitate the pumping out of the paint liquid in the paint tank.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This easily adjustable painting device for the production of wooden furniture has the following advantages:
[0015] In the wood painting process of wooden furniture production, the rotation of the rotating rod and connecting rod causes the limiting rod to slide inside the limiting track while rotating. This allows the limiting track to drive the rack to reciprocate under the constraint of the limiting groove. Under the constraint of the protrusion and the annular sliding groove, the reciprocating motion of the rack drives the spray pipe and multiple nozzles to reciprocate through the meshing gears to perform painting operations on the wood. This results in a uniform paint film, high efficiency in wood painting, and no need to worry about the layout of the delivery pipeline. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0018] Figure 3 This is an enlarged structural diagram of point A of this utility model.
[0019] In the diagram: 1 Support frame, 2 Microcontroller, 3 Adjustment mechanism, 31 Gear, 32 Limiting groove, 33 Rack, 34 Fixing ring, 35 Protrusion, 36 Circular slide groove, 37 Drive assembly, 371 Limiting track, 372 Rotating rod, 373 Connecting rod, 374 Limiting rod, 4 Motor 1, 5 Conveyor roller, 6 Conveyor belt, 7 Motor 2, 8 Paint box, 9 Conveying pipe, 10 Pump, 11 Spray pipe, 12 Spray head, 13 Isolation plate. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-3This embodiment provides a technical solution: an easily adjustable spray painting device for wood furniture production, including a support frame 1, an adjustable spray pipe 11 inside the support frame 1, and evenly distributed spray nozzles 12 on the lower side of the outer surface of the spray pipe 11. It also includes an adjustment mechanism 3 and a microcontroller 2, which is located on the right side of the support frame 1. The input end of the microcontroller 2 is electrically connected to an external power source. Conveyor rollers 5 are rotatably connected to both the left and right sides inside the support frame 1. The two conveyor rollers 5 are connected by a conveyor belt 6 (the conveyor belt 6 is a mesh belt type, with chains on both sides of the conveyor belt 6 and sprockets on both sides of the rotating shaft; adjacent sprockets are connected by a chain, thus enabling the conveyor belt 6 to carry the wood. The connection methods between the rotating shaft, sprockets, chains, and conveyor belt 6 are all common connection methods used in existing mesh belt electric conveyor belt components). A second motor 7 is located on the rear side of the support frame 1. The front end of the output shaft of the second motor 7 is fixedly connected to the rear end of the rotating shaft on the left side, and the input end of the second motor 7 is electrically connected to the microcontroller. At the output end of 2, a paint tank 8 is provided on the right side of the support frame 1. A conveying pipe 9 is provided at the discharge port on the lower surface of the paint tank 8. The lower end of the liquid outlet of the conveying pipe 9 passes through the top wall of the support frame 1 and is rotatably connected to the upper end of the spray pipe 11. A pump 10 is connected in series in the middle of the outer surface of the conveying pipe 9. The input end of the pump 10 is electrically connected to the output end of the microcontroller 2. Through the control of the microcontroller 2, the motor 7 starts to run, and the output shaft drives the left conveyor roller 5 to rotate through the left rotating shaft. Under the action of the sprocket and chain, the conveyor belt 6 starts to run. The wood to be painted is placed on the right side of the conveyor belt 6. Under the operation of the conveyor belt 6, the wood is transported from right to left to the processing position. After the staff observes the wood moving to the appropriate position through the glass observation window, the microcontroller 2 controls the motor 7 to turn off and the pump 10 to turn on. The pump 10 pumps the paint liquid in the paint tank 8 into the spray pipe 11 through the conveying pipe 9, and then sprays it onto the surface of the wood through the nozzle 12. After the painting is completed, the painted wood is removed from the inside of the support frame 1 by the conveyor belt 6 for the next processing stage.
[0022] Adjustment mechanism 3 includes a gear 31, a limiting groove 32, a rack 33, a fixing ring 34, a protrusion 35, a circular slide groove 36, and a drive assembly 37. The gear 31 and the fixing ring 34 are fixedly sleeved on the outer surface of the spray pipe 11. An isolation plate 13 is provided on the upper side of the inside of the support frame 1. The rack 33 is slidably connected to the limiting groove 32 on the upper surface of the isolation plate 13 through the drive assembly 37. The rack 33 meshes with the gear 31. The upper surface of the fixing ring 34 has protrusions 35 on both the front and rear sides. 5. The top wall of the support frame 1 is provided with an annular groove 36 (the central axis of the spray pipe 11 coincides with that of the annular groove 36). The protrusions 35 are all slidably connected inside the annular groove 36. The drive assembly 37 includes a limiting rail 371, a rotating rod 372, a connecting rod 373, and a limiting rod 374. The left end of the rack 33 is provided with the limiting rail 371. The top wall of the support frame 1 is rotatably connected to the rotating rod 372. The lower end of the rotating rod 372 is provided with the connecting rod 373. The lower surface of the connecting rod 373... A limiting rod 374 is provided at the end away from the rotating rod 372. The limiting rod 374 is slidably connected to the inside of the limiting track 371. A motor 4 is provided on the upper surface of the support frame 1. The lower end of the output shaft of the motor 4 is fixedly connected to the upper end of the rotating rod 372. The input end of the motor 4 is electrically connected to the output end of the microcontroller 2. At the same time, when the motor 4 is turned on, the output shaft of the motor 4 drives the rotating rod 372 to rotate. The rotating rod 372 drives the limiting rod 374 around the rotating rod 372 via the connecting rod 373. As the heart rotates, the limiting rod 374 slides along the limiting track 371 while rotating. Under the restriction of the limiting groove 32, the limiting rod 374 drives the rack 33 to move back and forth along the limiting groove 32 via the limiting track 371. Under the restriction of the fixed ring 34, the protrusion 35 and the circular slide groove 36, the reciprocating motion of the rack 33 drives the spray pipe 11 to rotate back and forth through the meshing gear 31 to perform painting operations on the wood. Due to the presence of the isolation plate 13, the paint liquid is prevented from affecting the normal operation of the adjustment mechanism 3.
[0023] The working principle of the easily adjustable spray painting device for wooden furniture production provided by this utility model is as follows: Under the control of the microcontroller 2, motor 7 starts to operate, and its output shaft drives the left conveyor roller 5 to rotate via the left rotating shaft. Under the action of the sprocket and chain, the conveyor belt 6 starts to operate. The wood to be painted is placed on the right side of the conveyor belt 6. Under the operation of the conveyor belt 6, the wood is transported from right to left to the processing position. After the operator observes the wood moving to the appropriate position through the glass observation window, motor 7 is turned off and pump 10 is turned on by the control of the microcontroller 2. Pump 10 pumps the paint liquid in the paint tank 8 into the spray pipe 11 through the conveying pipe 9, and then sprays it onto the surface of the wood through the nozzle 12. At the same time, motor 4 is turned on, and the output shaft of motor 4... The rotating rod 372 is driven to rotate, and the rotating rod 372 drives the limiting rod 374 to rotate around the rotating rod 372 via the connecting rod 373. While rotating, the limiting rod 374 slides along the limiting track 371. Under the restriction of the limiting groove 32, the limiting rod 374 drives the rack 33 to move back and forth along the limiting groove 32 via the limiting track 371. Under the restriction of the fixed ring 34, the protrusion 35 and the circular slide groove 36, the reciprocating motion of the rack 33 drives the spray pipe 11 to rotate back and forth through the meshing gear 31 to spray paint the wood. Due to the presence of the isolation plate 13, the paint liquid is prevented from affecting the normal operation of the adjustment mechanism 3. After the painting is completed, the painted wood is removed from the inside of the support frame 1 by the conveyor belt 6 for the next stage of wood furniture processing.
[0024] It is worth noting that the microcontroller 2 disclosed in the above embodiments can be LPC1768, motor 4 and motor 7 can be YS8024, and pump 10 can be YBC series. The microcontroller 2 controls the operation of motor 4, motor 7 and pump 10 using methods commonly used in the prior art.
[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A paint spraying device for wood furniture production with convenient adjustment, comprising a support frame (1), the inside of the support frame (1) is provided with an adjustable spraying pipe (11), the outer surface of the spraying pipe (11) is provided with uniformly distributed spray heads (12) on the lower side, characterized in that: It also includes an adjustment mechanism (3); Adjustment mechanism (3): It includes a gear (31), a limiting groove (32), a rack (33), a fixing ring (34), a protrusion (35), a circular groove (36), and a drive assembly (37). The outer surface of the spray pipe (11) is fixedly fitted with a gear (31) and a fixing ring (34). The upper side of the support frame (1) is provided with an isolation plate (13). The upper surface of the isolation plate (13) is provided with a limiting groove (32) and the rack (33) is slidably connected to it through the drive assembly (37). The rack (33) is meshed with the gear (31). The upper surface of the fixing ring (34) is provided with protrusions (35) on both the front and rear sides. The top wall of the support frame (1) is provided with a circular groove (36). The protrusions (35) are all slidably connected to the inside of a circular groove (36).
2. The paint spraying device for easy-to-adjust wooden furniture production according to claim 1, characterized in that: It also includes a microcontroller (2), which is located on the right side of the support frame (1), and the input terminal of the microcontroller (2) is electrically connected to an external power source.
3. The paint spraying device for easy-to-adjust wooden furniture production according to claim 2, characterized in that: The drive assembly (37) includes a limiting rail (371), a rotating rod (372), a connecting rod (373), and a limiting rod (374). The left end of the rack (33) is provided with a limiting rail (371). The top wall of the support frame (1) is rotatably connected to the rotating rod (372). The lower end of the rotating rod (372) is provided with a connecting rod (373). The lower surface of the connecting rod (373) away from the rotating rod (372) is provided with a limiting rod (374). The limiting rod (374) is slidably connected to the inside of the limiting rail (371).
4. The paint spraying device for easy-to-adjust wooden furniture production according to claim 3, characterized in that: The upper surface of the support frame (1) is provided with a motor (4), the lower end of the output shaft of the motor (4) is fixedly connected to the upper end of the rotating rod (372), and the input end of the motor (4) is electrically connected to the output end of the microcontroller (2).
5. The paint spraying device for easy-to-adjust wooden furniture production according to claim 2, characterized in that: The support frame (1) has conveyor rollers (5) rotatably connected to both the left and right sides inside. The two conveyor rollers (5) are connected by a conveyor belt (6). The support frame (1) has a second motor (7) on its rear side. The front end of the output shaft of the second motor (7) is fixedly connected to the rear end of the left rotating shaft. The input end of the second motor (7) is electrically connected to the output end of the microcontroller (2).
6. The paint spraying device for easy-to-adjust wooden furniture production according to claim 2, characterized in that: The right side of the support frame (1) is provided with a paint box (8), and a conveying pipe (9) is provided at the outlet of the lower surface of the paint box (8). The lower end of the liquid outlet of the conveying pipe (9) passes through the top wall of the support frame (1) and is rotatably connected to the upper end of the spray pipe (11).
7. The paint spraying device for easily adjustable wooden furniture production according to claim 6, characterized in that: A pump (10) is connected in series in the middle of the outer surface of the conveying pipe (9), and the input end of the pump (10) is electrically connected to the output end of the microcontroller (2).