Multi-surface spraying machine for furniture board surface treatment

Abstract

A multi-surface spraying machine for furniture board surface treatment relates to the technical field of spraying equipment and comprises an integrated base, a spraying box body is fixedly connected to the integrated base, and a lifting material receiving assembly, a side surface spraying assembly, a rotating material moving assembly, a turnover surface changing assembly, a surface spraying assembly, a drying and curing assembly and a transferring and conveying assembly are arranged in the spraying box body; the lifting material receiving assembly comprises a steering disc, a supporting column barrel is fixedly connected to the steering disc, a positioning table is fixedly connected to the supporting column barrel, two L-shaped swing arms are arranged on the longitudinal outer wall of the same side of the positioning table in a swinging mode, and U-shaped swing arms are arranged on the transverse outer walls of the two sides of the positioning table in a swinging mode. A lifting telescopic cylinder is arranged in the supporting column barrel, and the upper portion of the lifting telescopic cylinder is fixedly connected with a material receiving supporting plate in a telescopic mode. The problems that in the surface spraying process of furniture boards in the prior art, labor dependence is low, the production efficiency is low, the spraying quality is unstable, material waste is serious, the equipment function is single, flexibility is insufficient, and the working procedure collaboration is poor are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of spraying equipment, and particularly to a multi-sided spraying machine for the surface treatment of furniture wood boards. Background Art

[0002] Wood boards are commonly used materials in furniture manufacturing. Different types of wood boards vary in performance, price, and environmental friendliness.

[0003] The processing technology of furniture wood boards involves multiple processes, from raw material treatment to finished product assembly. The processing processes of different wood boards (such as solid wood, plywood, density board, etc.) also vary. The processing technology of furniture wood boards mainly includes: raw material treatment, cutting, planing and sanding, splicing and gluing, edge banding treatment, surface decoration treatment, drilling and grooving, etc. Specifically for the surface decoration treatment of wood boards, it also includes various processes such as veneering, paint spraying, film coating / UV curing, etc. Among them, the paint spraying treatment of furniture wood boards is an important process to improve aesthetics and protect the material, and it is also the most commonly used surface treatment method.

[0004] However, due to technical deficiencies, traditional furniture wood boards often have the following technical bottlenecks and requirements during automated spraying production: 1. Manual dependence and efficiency bottleneck: Traditional wood board spraying mostly uses manual piece-by-piece operation or semi-automatic equipment, which has problems such as low manual positioning accuracy, cumbersome flipping processes, and discontinuous process connections, resulting in low production efficiency and difficulty in meeting the requirements of mass production.

[0005] 2. Spraying quality and material waste: Existing equipment has insufficient positioning accuracy for stacked wood boards, prone to spraying occlusion and uneven paint surfaces; at the same time, the single-board spraying process leads to low paint utilization rate (especially in the scenario of thin wood boards), high paint consumption costs, and significant superposition of drying energy consumption and time costs.

[0006] 3. Limitation of single-function equipment: Most of the equipment on the market is designed for wood boards of fixed specifications, lacking the ability to adjust with multiple degrees of freedom, and it is difficult to accommodate the processing requirements of wood boards with different thicknesses and sizes. The clamping mechanism and spraying path are prone to interference.

[0007] 4. Production safety and environmental hazards: Manual intervention in handling, flipping and other links poses a risk of mechanical injury. Open spraying operations lead to the diffusion and pollution of paint mist. Traditional hot air drying systems have low thermal energy utilization rate and pose safety hazards.

[0008] 5. Insufficient process coordination: The equipment for each process in the existing production line operates independently, and material flow depends on intermittent operation, resulting in mismatched production beats and high equipment vacancy rates, making it difficult to achieve continuous operation of the entire process.

[0009] In summary, it is obvious that the existing technology has inconveniences and defects in actual use, so it is necessary to improve it. Summary of the Invention

[0010] In view of the defects in the prior art, the present invention provides a multi-sided spraying machine for the surface treatment of furniture wood boards, aiming to solve the problems in the traditional technology during the surface spraying of furniture wood boards, such as manual dependence, low production efficiency, unstable spraying quality, serious material waste, single equipment function, insufficient flexibility, and poor process coordination.

[0011] To achieve the above object, the present invention provides the following technical solutions: A multi-sided spraying machine for the surface treatment of furniture wood boards includes an integrated base, on which a spraying box body is fixedly connected. Inside the spraying box body, there are respectively arranged a lifting and receiving component, a side spraying component, a rotating and transferring component, a turning and surface-changing component, a surface spraying component, a drying and curing component, and a transfer and conveying component.

[0012] As an optimized solution, a receiving port is opened on one side of the upper surface of the spraying box body. The lifting and receiving component includes a steering disc arranged opposite to the receiving port. A vertical support column cylinder is fixedly connected to the steering disc. The upper end of the support column cylinder is fixedly connected with a positioning platform. Two L-shaped swing arms are swingably arranged on the longitudinal outer wall on the same side of the positioning platform, and U-shaped swing arms are swingably arranged on the transverse outer walls on both sides of the positioning platform.

[0013] As an optimized solution, a lifting telescopic cylinder is arranged inside the support column cylinder. The lifting telescopic cylinder is fixedly connected to the center of the upper surface of the steering disc. The upper telescopic end of the lifting telescopic cylinder passes through the positioning platform and is fixedly connected with a receiving support plate.

[0014] As an optimized solution, the side spraying component is arranged on the longitudinal side of the lifting and receiving component. The side spraying component includes a paint box fixedly connected to the longitudinal inner wall of the spraying box body. A side spraying seat is telescopically arranged on the longitudinal inner wall of the spraying box body. A paint transfer box is fixedly connected inside the side spraying seat. The paint box and the paint transfer box are connected by a spring feeding pipe. A plurality of side nozzles are fixedly connected to the paint transfer box.

[0015] As an optimized solution, an intermediate turntable is rotatably arranged on the transverse inner wall of the spraying box body, and a strip-shaped pushing plate is telescopically arranged on the intermediate turntable.

[0016] As an optimized solution, the rotating and transferring component is arranged on the transverse side of the lifting and receiving component. The rotating and transferring component includes two longitudinally symmetric sliding seats. A transfer circular plate is rotatably arranged on each sliding seat. A square positioning base is fixedly connected to the inner end face of the transfer circular plate. Electric chucks are telescopically arranged on each transverse end face of the positioning base.

[0017] As an optimized solution, the transfer and conveying assembly is arranged on the lateral side of the rotating material transfer assembly. The transfer and conveying assembly includes two longitudinally symmetric conveying mounting frames, and the conveying mounting frame is a right-angle frame extending horizontally. A number of equally spaced conveying rollers are rotatably installed between the two conveying mounting frames, and adjacent two conveying rollers are driven to rotate synchronously through a transmission wheel and a transmission belt. A conveying driving motor is fixedly connected to one of the conveying mounting frames, and the conveying driving motor is connected and transmitted to the last conveying roller.

[0018] As an optimized solution, a conveying avoidance opening is provided on the lateral side wall of the spraying box body, and the ends of the two conveying mounting frames pass through the conveying avoidance opening and extend to the outside thereof.

[0019] As an optimized solution, the transfer and conveying assembly further includes a horizontally arranged lifting support plate, and a number of strip-shaped top support plates are fixedly connected to the upper surface of the lifting support plate. The number of strip-shaped top support plates is arranged at equal intervals and is arranged in the gap between adjacent two conveying rollers.

[0020] As an optimized solution, four centrally symmetric vertical telescopic cylinders are fixedly connected to the upper surface of the integrated base, and the upper telescopic ends of the vertical telescopic cylinders are fixedly connected to the lower surface of the lifting support plate.

[0021] As an optimized solution, the turning and flipping assembly is arranged directly above the transfer and conveying assembly. The turning and flipping assembly includes a square turning frame, and four right-angle positioning seats are telescopically arranged on the circumferential side wall of the inner circle of the square turning frame.

[0022] As an optimized solution, two turning mounting seats are respectively arranged on the longitudinal two sides of the square turning frame, and a turning driving motor is fixedly connected to the longitudinal outer wall of each turning mounting seat. The end of the output shaft of the turning driving motor passes through the turning mounting seat and is fixedly connected to the side end face of the square turning frame.

[0023] As an optimized solution, two longitudinally symmetric hydraulic telescopic cylinders are fixedly connected to the inner top surface of the spraying box body, and the lower telescopic ends of the hydraulic telescopic cylinders are fixedly connected to the upper end face of the turning mounting seat.

[0024] As an optimized solution, the surface spraying assembly is arranged directly above the turning and flipping assembly. The surface spraying assembly includes two symmetrically arranged right-angle limiting plates, and the right-angle limiting plates extend longitudinally and the upper ends are fixedly connected to the inner top surface of the spraying box body.

[0025] As an optimized solution, square sliding seats are respectively and slidably arranged on each right-angle limiting plate. A tee spraying pipe is fixedly installed between the two square sliding seats. A plurality of pressurized spraying heads are fixedly connected to the lower end of the horizontal part of the tee spraying pipe. An electric control valve is arranged inside the vertical part of the tee spraying pipe.

[0026] As an optimized solution, two symmetric limiting baffles are respectively arranged on the longitudinal two sides of each square sliding seat. The limiting baffles are fixedly connected to the right-angle limiting plate. A moving driving motor is fixedly connected to the longitudinal outer wall of the limiting baffle. The end of the output shaft of the moving driving motor is fixedly connected with a driving threaded rod, and the driving threaded rod passes through and is in threaded connection with the square sliding seat.

[0027] As an optimized solution, a paint replenishment port is opened in the middle of the upper surface of the spraying box body.

[0028] As an optimized solution, the drying and curing assembly includes two drying boxes. One of the drying boxes is arranged on the opposite side of the lifting and receiving assembly and is fixedly connected to the longitudinal inner wall of the spraying box body. The other drying box is arranged on the transverse side of the turning and reversing assembly and is fixedly connected to the transverse inner wall of the spraying box body.

[0029] As an optimized solution, two drying modules are respectively arranged in each drying box. The drying module includes a fan driving motor and a fan blade.

[0030] As an optimized solution, electric heating pipes are also fixedly arranged in each drying box.

[0031] As an optimized solution, a motor mounting frame is fixedly connected to the upper surface of the integrated base. A steering driving motor is fixedly connected to the inner top surface of the motor mounting frame. The end of the output shaft of the steering driving motor passes through the motor mounting frame upward and is fixedly connected to the center of the lower surface of the steering disc.

[0032] As an optimized solution, upper transmission sprockets are respectively fixedly connected to the outer walls of the ends of the L-shaped swing arm and the U-shaped swing arm. Four swing driving motors are respectively fixedly connected to the lower surface of the positioning table corresponding to the L-shaped swing arm and the U-shaped swing arm. The end of the output shaft of each swing driving motor is respectively fixedly connected with a lower transmission sprocket, and transmission chains are sleeved between the upper transmission sprockets and the lower transmission sprockets that face each other up and down.

[0033] As an optimized solution, rotation driving motors are respectively fixedly connected to the longitudinal outer walls of each sliding seat. The end of the output shaft of the rotation driving motor passes through the sliding seat and is fixedly connected to the side end face of the material moving circular plate.

[0034] As an optimized solution, two longitudinally symmetrical sliding mounting openings are provided on the upper surface of the integrated base, and a driving slider is respectively clamped in each sliding mounting opening, and the upper end of the driving slider is fixedly connected to the lower surface of the sliding seat.

[0035] As an optimized solution, a sliding driving motor is fixedly connected to each longitudinal outer wall of the integrated base, the end of the output shaft of the sliding driving motor extends into the sliding mounting opening and is fixedly connected with a threaded lead screw, and the threaded lead screw passes through and is threadedly connected to the driving slider.

[0036] As an optimized solution, a stepping motor is fixedly connected to the transverse outer wall of the spraying box body, and the output shaft of the stepping motor passes through the spraying box body and is fixedly connected to the side end face of the middle turntable.

[0037] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. High-efficiency automation and process integration: Through the coordinated control of components such as the lifting telescopic cylinder, stepping motor, pushing mechanism, and steering disc, the full-process automated operations of automatic material receiving, positioning, flipping, spraying, and conveying of stacked wooden boards are realized, significantly reducing manual intervention and improving production efficiency; The multi-degree-of-freedom mechanical structure (such as U-shaped swing arms, L-shaped swing arms, and square flipping frames) is used in combination with programmed control to complete the multi-task connection of clamping, face changing, spraying, and drying, ensuring the coherence and high efficiency of the production process.

[0038] 2. Precise positioning and optimized spraying quality: Through the combined actions of the pushing telescopic cylinder and the steering disc, the precise centering and multi-angle positioning of the stacked wooden boards are realized, ensuring that the spraying surface is completely exposed and unobstructed, avoiding spraying blind spots; The staged spraying (side spraying and surface spraying) of the side spraying seat and the pressurized spraying head, combined with the hot air drying system, ensures uniform coverage and rapid curing of the paint surface, reducing problems such as paint sagging or accumulation.

[0039] 3. Resource conservation and cost control: The centralized spraying technology for the end faces of stacked wooden boards avoids the waste of paint caused by spraying each single wooden board one by one, especially suitable for the scenario of thin wooden boards, significantly reducing the paint consumption per unit product; The drying system and the spraying process operate alternately, using hot air circulation to accelerate drying, shortening the production cycle and reducing energy consumption.

[0040] 4. Multi-condition adaptability and flexibility: Through the clamping switching of the U-shaped swing arms and L-shaped swing arms and the 90° rotation of the square flipping frame, the clamping requirements of wooden boards with different sizes and thicknesses can be adapted, avoiding interference between the spraying position and the clamping position, and supporting multi-angle spraying (four end faces and two surfaces); The offset pushing mechanism (the lifting receiving tray rises by the thickness of one wooden board each time) ensures the stable separation and precise positioning of the wooden boards during continuous operation, adapting to the requirements of batch production.

[0041] 5. Improvement in Safety and Stability: Mechanical clamping replaces manual handling, reducing operational risks; hydraulic and electric control drive systems ensure controllable clamping force to avoid damage to wooden boards; the spraying and drying processes are completed in a closed environment, reducing the diffusion of paint mist and heat energy loss, and improving the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0043] Figure 1 It is a schematic cross-sectional view of the internal structure of each component of the present invention in the top view direction; Figure 2 It is a schematic cross-sectional view of the internal structure of each component of the present invention in the front view direction; Figure 3 It is a schematic internal structure view of the lifting and material receiving component, side spraying component and drying and curing component of the present invention in the side view direction; Figure 4 It is a schematic internal structure view of the rotating material transfer component of the present invention in the side view direction; Figure 5 It is a schematic internal structure view of the surface spraying component, turnover and surface conversion component and transfer and conveying component of the present invention in the side view direction; Figure 6 It is a schematic cross-sectional view of the internal structure of the surface spraying component of the present invention in the top view direction; Figure 7 It is a schematic overall external view of the present invention in the front view direction; Figure 8 It is a schematic overall external view of the present invention in the top view direction.

[0044] In the figure: 1 - integrated base, 2 - spraying box body, 3 - material receiving port, 4 - motor mounting frame, 5 - steering drive motor, 6 - steering disc, 7 - support column cylinder, 8 - positioning table, 9 - L-shaped swing arm, 10 - U-shaped swing arm, 11 - rubber cushion block, 12 - upper drive sprocket, 13 - swing drive motor, 14 - lower drive sprocket, 15 - drive chain, 16 - lifting avoidance opening, 17 - lifting telescopic cylinder, 18 - material receiving support plate, 19 - stepping motor, 20 - intermediate turntable, 21 - pushing telescopic cylinder, 22 - strip-shaped pushing plate, 23 - paint tank, 24 - paint supply pump, 25 - horizontal telescopic cylinder, 26 - side spraying seat, 27 - paint transfer tank, 28 - spring feeding pipe, 29 - side nozzle, 30 - sliding seat, 31 - rotation drive motor, 32 - material transfer circular plate, 33 - positioning base, 34 - clamping telescopic cylinder, 35 - electric chuck, 36 - sliding mounting opening, 37 - drive slider, 38 - sliding drive motor, 39 - threaded lead screw, 40 - conveying mounting frame, 41 - conveying roller, 42 - conveying drive motor, 43 - conveying avoidance opening, 44 - lifting support plate, 45 - strip-shaped top support plate, 46 - vertical telescopic cylinder, 47 - square flipping frame, 48 - right-angle positioning seat, 49 - flipping mounting seat, 50 - flipping drive motor, 51 - hydraulic telescopic cylinder, 52 - right-angle limiting plate, 53 - square sliding seat, 54 - three-way spraying pipe, 55 - boosting spraying head, 56 - electric control valve, 57 - limiting baffle plate, 58 - moving drive motor, 59 - drive threaded rod, 60 - paint replenishment port, 61 - drying box, 62 - fan drive motor, 63 - fan blade, 64 - electric heating pipe, 65 - air inlet. Detailed implementation manners

[0045] The embodiments of the technical solution of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, so they are only examples and cannot be used to limit the protection scope of the present invention.

[0046] As Figures 1 to 8 shown, a multi-sided spraying machine for the surface treatment of furniture wood boards includes an integrated base 1. The integrated base 1 is a square base grounded horizontally. A spraying box body 2 is fixedly connected to the integrated base 1. The spraying box body 2 is a two-section square box. An elevating material receiving assembly, a side spraying assembly, a rotating material transfer assembly, a flipping and surface-changing assembly, a surface spraying assembly, a drying and curing assembly, and a transfer and conveying assembly are respectively arranged in the spraying box body 2.

[0047] A material receiving port 3 is opened on the upper surface of the concave part of the spraying box body 2. The elevating material receiving assembly includes a motor mounting frame 4. The motor mounting frame 4 is fixedly connected to the upper surface of the integrated base 1 and is arranged directly opposite the material receiving port 3. A steering drive motor 5 is fixedly connected to the inner top surface of the motor mounting frame 4. The end of the output shaft of the steering drive motor 5 passes upward through the motor mounting frame 4 and is fixedly connected to a steering disc 6.

[0048] In the middle of the upper surface of the steering disc 6, a vertical support column cylinder 7 is fixedly connected. At the upper end of the support column cylinder 7, a horizontal positioning table 8 is fixedly connected. On the positioning table 8, there are respectively two L-shaped swing arms 9 and a U-shaped swing arm 10. The two L-shaped swing arms 9 are symmetrically arranged and their ends are swing-mounted on the same-side longitudinal outer wall of the positioning table 8. The two ends of the U-shaped swing arm 10 are respectively swing-mounted on the two transverse outer walls of the positioning table 8.

[0049] On the inner side walls of the L-shaped swing arm 9 and the U-shaped swing arm 10, rubber cushion blocks 11 are respectively fixedly connected. On the outer wall ends of the L-shaped swing arm 9 and the U-shaped swing arm 10, upper transmission sprockets 12 are respectively fixedly connected. Corresponding to the L-shaped swing arm 9 and the U-shaped swing arm 10, four swing drive motors 13 are respectively fixedly connected to the lower surface of the positioning table 8. At the end of the output shaft of each swing drive motor 13, a lower transmission sprocket 14 is respectively fixedly connected. A transmission chain 15 is sleeved between the upper transmission sprocket 12 and the lower transmission sprocket 14 which are opposite up and down.

[0050] At the center of the lower surface of the positioning table 8, a lifting avoidance opening 16 is provided.

[0051] Inside the support column cylinder 7, a lifting telescopic cylinder 17 is provided. The lifting telescopic cylinder 17 is fixedly connected to the center of the upper surface of the steering disc 6. The upper telescopic end of the lifting telescopic cylinder 17 passes through the lifting avoidance opening 16 and is fixedly connected to a horizontal material receiving tray 18. The size of the material receiving tray 18 is smaller than the size of the material receiving opening 3.

[0052] On the transverse outer wall of the spraying box body 2, a stepping motor 19 is fixedly connected. The output shaft of the stepping motor 19 passes through the spraying box body 2 and is fixedly connected to an intermediate turntable 20. On the outer side wall of the intermediate turntable 20, a horizontal pushing telescopic cylinder 21 is fixedly connected. At the telescopic end of the pushing telescopic cylinder 21, a strip-shaped pushing plate 22 is fixedly connected. The width of the strip-shaped pushing plate 22 is equal to the thickness of a single wooden board, and the length of the strip-shaped pushing plate 22 is equal to the thickness of multiple stacked wooden boards.

[0053] The side spraying assembly is arranged on the longitudinal side of the lifting material receiving assembly. The side spraying assembly includes a square paint box 23. The paint box 23 is fixedly connected to the longitudinal inner wall of the spraying box body 2. On the paint box 23, a paint supply pump 24 connected thereto is fixedly connected.

[0054] On the two transverse sides of the paint box 23, two symmetric horizontal telescopic cylinders 25 are respectively fixedly connected. The telescopic ends of the horizontal telescopic cylinders 25 are fixedly connected to the longitudinal inner wall of the spraying box body 2.

[0055] The telescopic ends of the two horizontal telescopic cylinders 25 are fixedly connected to a side spraying seat 26. The side spraying seat 26 is a C-shaped seat extending transversely and opening longitudinally.

[0056] On the longitudinal inner wall of the side spraying seat 26, a paint transfer tank 27 is fixedly connected. The paint tank 23 is externally connected to a spring feeding pipe 28, and the end of the spring feeding pipe 28 passes through the side spraying seat 26 and is fixedly connected and communicated to the paint transfer tank 27.

[0057] On the longitudinal outer wall of the paint transfer tank 27, several side nozzles 29 are fixedly connected.

[0058] The rotating material transfer assembly is arranged on the transverse side of the lifting material receiving assembly. The rotating material transfer assembly includes two longitudinally symmetric sliding seats 30. On the longitudinal outer wall of each sliding seat 30, a rotating drive motor 31 is fixedly connected respectively. The end of the output shaft of the rotating drive motor 31 passes through the sliding seat 30 and is fixedly connected with a material transfer circular plate 32.

[0059] On the inner end face of the material transfer circular plate 32, a square positioning base 33 is fixedly connected. On each transverse end face of the positioning base 33, a clamping telescopic cylinder 34 is fixedly connected respectively. The telescopic ends of each clamping telescopic cylinder 34 are fixedly connected with an electric chuck 35 respectively.

[0060] On the upper surface of the integrated base 1, two longitudinally symmetric sliding installation openings 36 are opened. In each sliding installation opening 36, a driving slider 37 is clamped and installed. The upper end of the driving slider 37 is fixedly connected to the lower surface of the sliding seat 30.

[0061] On each longitudinal outer wall of the integrated base 1, a sliding drive motor 38 is fixedly connected respectively. The end of the output shaft of the sliding drive motor 38 extends into the sliding installation opening 36 and is fixedly connected with a threaded lead screw 39. The threaded lead screw 39 passes through and is threadedly connected to the driving slider 37.

[0062] The transfer and conveying assembly is arranged on the transverse side of the rotating material transfer assembly. The transfer and conveying assembly includes two longitudinally symmetric conveying installation frames 40. The conveying installation frames 40 are right-angle frames extending transversely. Between the two conveying installation frames 40, several equally spaced conveying rollers 41 are rotatably installed. Adjacent two conveying rollers 41 are driven to rotate synchronously through transmission wheels and transmission belts. On one of the conveying installation frames 40, a conveying drive motor 42 is fixedly connected. The conveying drive motor 42 is connected and transmitted with the last conveying roller 41.

[0063] On the transverse side wall of the spraying box body 2, a conveying avoidance opening 43 is opened. The ends of the two conveying installation frames 40 pass through the conveying avoidance opening 43 and extend to its outside.

[0064] At the lower end of each conveying installation frame 40, two support foot frames are fixedly connected respectively. The lower ends of the support foot frames are fixedly connected to the upper surface of the integrated base 1.

[0065] The transfer and conveying assembly further includes a horizontally arranged lifting pallet 44. A plurality of strip-shaped top support plates 45 are fixedly connected to the upper surface of the lifting pallet 44. The plurality of strip-shaped top support plates 45 are arranged at equal intervals and are disposed within the gaps between adjacent two conveying rollers 41.

[0066] Four vertically telescopic cylinders 46 that are centrosymmetric are fixedly connected to the upper surface of the integrated base 1. The upper telescopic ends of the vertically telescopic cylinders 46 are fixedly connected to the lower surface of the lifting pallet 44.

[0067] The turning and reversing assembly is disposed directly above the transfer and conveying assembly. The turning and reversing assembly includes a square turning frame 47. Four right-angle positioning seats 48 are telescopically arranged on the circumferential side wall of the inner circle of the square turning frame 47.

[0068] Two turning mounting seats 49 are respectively arranged on the longitudinal two sides of the square turning frame 47. A turning drive motor 50 is fixedly connected to the longitudinal outer wall of each turning mounting seat 49. The end of the output shaft of the turning drive motor 50 passes through the turning mounting seat 49 and is fixedly connected to the side end face of the square turning frame 47.

[0069] Two longitudinally symmetric hydraulic telescopic cylinders 51 are fixedly connected to the inner top surface of the spraying box body 2. The lower telescopic ends of the hydraulic telescopic cylinders 51 are fixedly connected to the upper end faces of the turning mounting seats 49.

[0070] The surface spraying assembly is disposed directly above the turning and reversing assembly. The surface spraying assembly includes two symmetrically arranged right-angle limiting plates 52. The right-angle limiting plates 52 extend longitudinally and the upper ends are fixedly connected to the inner top surface of the spraying box body 2.

[0071] A square sliding seat 53 is slidably arranged on each right-angle limiting plate 52. A three-way spraying pipe 54 is fixedly installed between the two square sliding seats 53. A plurality of pressurized spraying heads 55 are fixedly connected to the lower end of the horizontal part of the three-way spraying pipe 54. An electric control valve 56 is arranged inside the vertical part of the three-way spraying pipe 54. The upper end of the three-way spraying pipe 54 is externally connected to a feeding pipeline, enabling timely replenishment of the paint.

[0072] Two symmetric limiting baffles 57 are respectively arranged on the longitudinal two sides of each square sliding seat 53. The limiting baffles 57 are fixedly connected to the right-angle limiting plates 52. A moving drive motor 58 is fixedly connected to the longitudinal outer wall of the limiting baffle 57. The end of the output shaft of the moving drive motor 58 is fixedly connected to a driving threaded rod 59. The driving threaded rod 59 passes through and is threadedly connected to the square sliding seat 53.

[0073] A paint replenishment port 60 is opened in the middle of the upper surface of the spraying box body 2.

[0074] The drying and curing assembly includes two drying boxes 61. One drying box 61 is arranged on the opposite side of the lifting and material receiving assembly and is fixedly connected to the longitudinal inner wall of the spraying box body 2, and the other drying box 61 is arranged on the transverse side of the turning and reversing assembly and is fixedly connected to the transverse inner wall of the spraying box body 2.

[0075] Each drying box 61 is respectively provided with two drying modules, and each drying module includes a fan drive motor 62 and a fan blade 63.

[0076] Each drying box 61 is also fixedly provided with an electric heating tube 64.

[0077] Air inlets 65 communicating with the drying boxes 61 are respectively formed in the transverse box wall and the longitudinal box wall of the spraying box body 2.

[0078] When the present invention is in use: First, control the lifting telescopic cylinder 17 to extend, move the material receiving support plate 18 to a position flush with the material receiving port 3, and place the stacked wooden boards flat on the material receiving support plate 18 by means of handling such as a jib or a manipulator. Then, control the lifting telescopic cylinder 17 to shorten and move the wooden boards into the spraying box body 2; start the stepping motor 19, the stepping motor 19 drives the intermediate turntable 20 to rotate, turn the strip-shaped pushing plate 22 to the vertical position, control the pushing telescopic cylinder 21 to extend, drive the strip-shaped pushing plate 22 to move horizontally, and push and align the stacked wooden boards flat. Through controlling the steering disc 6 to rotate 90° multiple times for multiple pushing operations until the wooden boards are centered on the material receiving support plate 18; start the swing driving motor 13, through the transmission of the upper driving sprocket 12, the lower driving sprocket 14 and the transmission chain 15, drive the U-shaped swing arm 10 to swing upward to the vertical position, and adjust the position of the stacked wooden boards by controlling the lifting telescopic cylinder 17 to extend and retract until the U-shaped swing arm 10 presses down and clamps the stacked wooden boards. At this time, the completely unobstructed side end face of the stacked wooden boards faces the side spraying seat 26; turn on the paint supply pump 24, inject spraying paint into the paint tank 23, the paint enters the paint transfer tank 27 through the spring supply pipe 28, and then is sprayed out through the side nozzle 29 to complete the covering spraying of the side end face of the stacked wooden boards, preventing the problems of inconvenient spraying and paint waste caused by insufficient thickness of a single wooden board; by starting different swing driving motors 13, control the U-shaped swing arm 10 to swing to the horizontal position, and at the same time control the two L-shaped swing arms 9 to swing to the vertical position to switch the clamping method and the clamping part; start the steering driving motor 5, the steering driving motor 5 drives the steering disc 6 to rotate 90° to switch the spraying surface of the wooden board. At the same time, turn on the fan driving motor 62, the fan driving motor 62 drives the fan blades 63 to rotate, the outside air enters through the air inlet 65, is heated by the electric heating tube 64 and then blown out longitudinally to dry and cure the paint on the end face of the wooden board; use the side spraying assembly again to spray the side end face of the stacked wooden boards; repeat the above process until the spraying and drying of the four end faces of the stacked wooden boards are completed; control the L-shaped swing arm 9 to swing back to the horizontal position, start the stepping motor 19 again, control the strip-shaped pushing plate 22 to turn to the horizontal state, control the pushing telescopic cylinder 21 to extend, horizontally push out the topmost wooden board, and at the same time control the clamping telescopic cylinder 34 to extend, move the electric chuck 35 to the end of the wooden board and clamp it, then control the clamping telescopic cylinder 34 to shorten, start the rotation driving motor 31, and the rotation driving motor 31 drives the transfer circular plate 32 to rotate counterclockwise by 180°, thereby transferring the wooden board to the conveying roller 41; start the conveying driving motor 42, the conveying driving motor 42 drives the conveying roller 41 to rotate, and move the wooden board to directly below the turning and reversing assembly;Control the hydraulic telescopic cylinder 51 to extend, drive the square turning frame 47 to move downward, and at the same time control the vertical telescopic cylinder 46 to extend, drive the lifting support plate 44 to move upward, lift the wooden board to a position flush with the square turning frame 47, and clamp the wooden board by controlling the expansion and contraction of the right-angle positioning seat 48. Then control the hydraulic telescopic cylinder 51 to contract, drive the square turning frame 47 and the wooden board to move upward to a position close to the pressurized spraying head 55; start the moving drive motor 58, the moving drive motor 58 drives the drive threaded rod 59 to rotate, drive the square sliding seat 53 to longitudinally move to the spraying starting position, turn on the pressurized spraying head 55, and perform moving spraying on the upper surface of the wooden board. After spraying, turn on the electric control valve 56 to supplement the paint into the tee spraying pipe 54; then control the hydraulic telescopic cylinder 51 to extend, drive the square turning frame 47 to move downward to a position directly opposite the drying oven 61, start the fan drive motor 62, the fan drive motor 62 drives the fan blade 63 to rotate, blow out the hot air flow horizontally, and at the same time start the turning drive motor 50, control the square turning frame 47 to rotate counterclockwise by 90°, so that it is directly opposite the drying oven 61, so as to dry and cure the paint on the wooden board surface; after drying, control the square turning frame 47 to rotate counterclockwise by 90° again, so that the unsprayed wooden board surface is directly opposite the pressurized spraying head 55, and perform surface spraying and drying again; after surface spraying, drive the square turning frame 47 to move downward, place the wooden board flat on the conveying roller 41, and then transport it horizontally through the conveying avoidance port 43; after the surface of a single wooden board is sprayed, control the lifting telescopic cylinder 17 to extend, control the receiving support plate 18 to rise by the thickness of a wooden board, and perform staggered pushing again.;

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features, and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. Multi-sided spraying machine for surface treatment of furniture wood boards, characterized in that: It includes an integrated base, on which a spraying box body is fixedly connected. Inside the spraying box body, there are respectively arranged a lifting and feeding component, a side spraying component, a rotating and material transferring component, a turning and surface-changing component, a surface spraying component, a drying and curing component, and a transfer and conveying component; On one side of the upper surface of the spraying box body, there is a feeding port. The lifting and feeding component includes a steering disc arranged opposite to the feeding port. On the steering disc, there is a vertically fixed support column cylinder. At the upper end of the support column cylinder, there is a positioning table. On the same-side longitudinal outer wall of the positioning table, there are two swingable L-shaped swing arms, and on the two-side transverse outer walls of the positioning table, there are swingable U-shaped swing arms; Inside the support column cylinder, there is a lifting telescopic cylinder, which is fixedly connected to the center of the upper surface of the steering disc. The upper telescopic end of the lifting telescopic cylinder passes through the positioning table and is fixedly connected with a feeding support plate; The side spraying component is arranged on the longitudinal side of the lifting and feeding component. The side spraying component includes a paint box fixedly connected to the longitudinal inner wall of the spraying box body. On the longitudinal inner wall of the spraying box body, there is a telescopically arranged side spraying seat. Inside the side spraying seat, there is a paint transfer box fixedly connected. The paint box and the paint transfer box are connected by a spring feeding pipe. On the paint transfer box, there are several side nozzles fixedly connected; On the transverse inner wall of the spraying box body, there is a rotatably arranged middle turntable, and on the middle turntable, there is a telescopically arranged strip-shaped pushing plate; The rotating and material transferring component is arranged on the transverse side of the lifting and feeding component. The rotating and material transferring component includes two longitudinally symmetric sliding seats. On each sliding seat, there is a rotatably arranged material transferring circular plate. On the inner end face of the material transferring circular plate, there is a square positioning base. On each transverse end face of the positioning base, there is a telescopically arranged electric chuck; 2. The multi-sided spraying machine for surface treatment of furniture wood boards according to claim 1, wherein: The transfer and conveying component is arranged on the transverse side of the rotating and material transferring component. The transfer and conveying component includes two longitudinally symmetric conveying mounting frames. The conveying mounting frames are right-angle frames extending horizontally. Between the two conveying mounting frames, there are several equally spaced conveying rollers rotatably installed. Between adjacent two conveying rollers, they are driven to rotate synchronously through transmission wheels and transmission belts. On one of the conveying mounting frames, there is a conveying driving motor, and the conveying driving motor is connected and transmitted to the last conveying roller; On the transverse side wall of the spraying box body, there is a conveying avoidance opening. The ends of the two conveying mounting frames pass through the conveying avoidance opening and extend to its outside; 3. The multi-sided spraying machine for furniture wood board surface treatment according to claim 2, characterized in that: The transfer and conveying component also includes a horizontally arranged lifting support plate. On the upper surface of the lifting support plate, there are several strip-shaped top support plates fixedly connected. The several strip-shaped top support plates are arranged at equal intervals and are arranged in the gaps between adjacent two conveying rollers; On the upper surface of the integrated base, there are four vertically telescopic cylinders symmetrically arranged at the center. The upper telescopic ends of the vertically telescopic cylinders are fixedly connected to the lower surface of the lifting support plate; 4. The multi-sided spraying machine for furniture wood board surface treatment according to claim 3, characterized in that: The turning and surface-changing component is arranged directly above the transfer and conveying component. The turning and surface-changing component includes a square turning frame. On the circumferential side wall of the inner circle of the square turning frame, there are four telescopically arranged right-angle positioning seats; Two flipping mounting seats are respectively arranged on the longitudinal two sides of the square flipping frame, and a flipping driving motor is fixedly connected to the longitudinal outer wall of each flipping mounting seat. The end of the output shaft of the flipping driving motor passes through the flipping mounting seat and is fixedly connected to the side end face of the square flipping frame; Two longitudinally symmetric hydraulic telescopic cylinders are fixedly connected to the inner top surface of the spraying box body, and the lower telescopic end of the hydraulic telescopic cylinder is fixedly connected to the upper end face of the flipping mounting seat.

5. The multi-sided spraying machine for furniture wood board surface treatment according to claim 4, characterized in that: The surface spraying assembly is arranged directly above the flipping and turning assembly. The surface spraying assembly includes two symmetrically arranged right-angle limiting plates, and the right-angle limiting plates extend longitudinally and the upper ends are fixedly connected to the inner top surface of the spraying box body; A square sliding seat is slidably arranged on each right-angle limiting plate. A three-way spraying pipe is fixedly installed between the two square sliding seats. A plurality of pressurized spraying heads are fixedly connected to the lower end of the horizontal part of the three-way spraying pipe, and an electric control valve is arranged in the vertical part of the three-way spraying pipe; Two symmetric limiting baffles are respectively arranged on the longitudinal two sides of each square sliding seat. The limiting baffles are fixedly connected to the right-angle limiting plates. A moving driving motor is fixedly connected to the longitudinal outer wall of the limiting baffle, and the end of the output shaft of the moving driving motor is fixedly connected to a driving threaded rod, and the driving threaded rod passes through and is threadedly connected to the square sliding seat; A paint replenishment port is opened in the middle of the upper surface of the spraying box body.

6. The multi-sided spraying machine for furniture wood board surface treatment according to claim 5, wherein: The drying and curing assembly includes two drying boxes. One of the drying boxes is arranged on the opposite side of the lifting and receiving assembly and is fixedly connected to the longitudinal inner wall of the spraying box body, and the other drying box is arranged on the transverse side of the flipping and turning assembly and is fixedly connected to the transverse inner wall of the spraying box body; Two drying modules are respectively arranged in each drying box, and each drying module includes a fan driving motor and a fan blade; An electric heating pipe is also fixedly arranged in each drying box.

7. The multi-sided spraying machine for furniture wood board surface treatment according to claim 1, characterized in that: A motor mounting frame is fixedly connected to the upper surface of the integrated base, and a steering driving motor is fixedly connected to the inner top surface of the motor mounting frame. The end of the output shaft of the steering driving motor passes upward through the motor mounting frame and is fixedly connected to the center of the lower surface of the steering disc.

8. The multi-sided spraying machine for furniture wood board surface treatment according to claim 1, characterized in that: Upper transmission sprockets are respectively fixedly connected to the outer walls of the ends of the L-shaped swing arm and the U-shaped swing arm. Four swing driving motors are respectively fixedly connected to the lower surface of the positioning table corresponding to the L-shaped swing arm and the U-shaped swing arm. The end of the output shaft of each swing driving motor is respectively fixedly connected to a lower transmission sprocket, and a transmission chain is sleeved between the upper transmission sprocket and the lower transmission sprocket which are opposite up and down.

9. The multi-sided spraying machine for furniture wood board surface treatment according to claim 1, characterized in that: A rotation driving motor is fixedly connected to the longitudinal outer wall of each sliding seat. The end of the output shaft of the rotation driving motor passes through the sliding seat and is fixedly connected to the side end face of the material moving circular plate; Two longitudinally symmetric sliding mounting openings are opened on the upper surface of the integrated base, and a driving slider is respectively clamped and arranged in each sliding mounting opening. The upper end of the driving slider is fixedly connected to the lower surface of the sliding seat; A sliding drive motor is fixedly connected to each longitudinal outer wall of the integrated base, and the end of the output shaft of the sliding drive motor extends into the sliding mounting opening and is fixedly connected with a threaded lead screw, and the threaded lead screw passes through and is threadedly connected to the drive slider.

10. The multi-sided spraying machine for furniture wood board surface treatment according to claim 1, characterized in that: A stepping motor is fixedly connected to the transverse outer wall of the spraying box body, and the output shaft of the stepping motor passes through the spraying box body and is fixedly connected to the side end face of the intermediate turntable.

Images