A wood door color repairing paint spraying device

Abstract

The application discloses a wood door color repairing paint spraying device and relates to the technical field of wood door color repairing, wherein a paint spraying bin is internally provided with a clamping frame, the clamping frame is provided with a clamping mechanism, the clamping mechanism comprises two supporting rods, two first clamping rods are slidably connected between the two supporting rods, two second clamping rods are slidably connected between the two first clamping rods, clamping pieces are slidably connected to the first clamping rods and the second clamping rods, driving mechanisms are arranged on the two supporting rods, a lifting mechanism is arranged at the lower portion of the clamping frame, and a cleaning mechanism is arranged on the lifting mechanism. The wood door can be automatically clamped in multiple directions, the clamping effect can be effectively improved, the wood door is prevented from being displaced due to uneven stress in the frequent overturning process, the clamping mechanism can automatically clamp wood doors of more specifications and sizes, the wood door is prevented from being pressed, the lowering of the placing plate can drive the cleaning mechanism to work, and the lower surface of the wood door can be automatically cleaned.

Description

Technical Field

[0001] This invention relates to the field of wood door color correction technology, and in particular to a wood door color correction spray painting device. Background Technology

[0002] Color correction for wooden doors refers to the process of correcting, unifying, or artistically treating the surface color of wooden doors by spraying colored paint. It is a crucial step in the production of wooden doors that determines the final visual quality. Color correction work usually occurs after the primer is sanded and before the topcoat is sprayed, or in scenarios such as multi-color antique finishes or partial repairs. The requirements for the uniformity, cleanliness, and dust-free environment of the coating are far higher than for ordinary primer or topcoat spraying. Any tiny impurities, particles, or paint mist contamination will create obvious defects on the color correction layer, leading to rework or scrapping.

[0003] In automated wood door painting and finishing equipment, it is usually necessary to paint both sides of the wood door separately. Therefore, a flipping mechanism is required to automatically flip the wood door after one side has been painted for the other side. Various wood door flipping and painting devices have been disclosed in the prior art, such as painting equipment that achieves precise flipping through a flipping component, or combined devices that include feeding, conveying, and flipping painting functions.

[0004] However, when these devices are applied to the color-correcting and painting process, the problem of a single clamping method still exists, making it difficult to meet the strict requirements of the color-correcting process for protecting wooden doors. For example, the clamping mechanisms of existing devices mostly clamp from both ends or sides of the wooden door. During frequent flipping, uneven force can easily cause slight displacement of the wooden door, and long-term pressure on the clamping parts can form indentations or damage on the edges of the wooden door, directly affecting the appearance of the finished product.

[0005] Furthermore, color matching is extremely sensitive to surface cleanliness. After color matching on one side of the wooden door is completed and before it is flipped over, the bottom surface of the door (i.e., the other side to be painted) has come into contact with the mechanical structure such as the support platform multiple times during the entire conveying and clamping process, inevitably accumulating impurities such as dust, sawdust, and dried paint particles from the equipment and the surrounding environment. However, existing equipment generally sets the cleaning process before the wooden door enters the painting equipment, which means that the bottom surface cannot be cleaned after one side of the paint is applied and before the door is flipped over. When the wooden door is flipped over, these impurities attached to the bottom surface are directly exposed to the spray gun, and after being covered by the color matching paint, they form particles, bumps, or pinholes, seriously affecting the quality of the color matching paint layer. Summary of the Invention

[0006] The purpose of this invention is to solve the problems of the single clamping method of existing color-correcting spray painting equipment and the inability to clean the bottom surface after spraying one side of the paint and before turning the wooden door over, and to propose a color-correcting spray painting device for wooden doors.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A wood door color-correcting and painting device includes a paint spraying chamber, an electric slide table inside the paint spraying chamber, a robotic arm on the electric slide table, a spray gun on the robotic arm, and a clamping frame inside the paint spraying chamber. The clamping frame is equipped with a clamping mechanism for clamping and fixing the wood door. The clamping mechanism includes two symmetrically distributed support rods, two symmetrically distributed first clamping rods are slidably connected between the two support rods, and two symmetrically distributed second clamping rods are slidably connected between the two first clamping rods. Several clamping elements are slidably connected to both the first and second clamping rods.

[0009] Both of the support rods are equipped with a drive mechanism for driving the first clamping rod and the second clamping rod to slide;

[0010] The lower part of the clamping frame is equipped with a lifting mechanism for placing the wooden door and controlling its raising and lowering. The lifting mechanism is equipped with a cleaning mechanism for cleaning the bottom surface of the wooden door.

[0011] In some embodiments, both ends of the two first clamping rods are fixedly connected to first sliding sleeves, and the first sliding sleeves at both ends are slidably sleeved on the two support rods respectively. Both ends of the two second clamping rods are slidably inserted with sliding rods, and the outer ends of the four sliding rods are fixedly connected to second sliding sleeves. Two of the second sliding sleeves are slidably sleeved on one of the first clamping rods, and the other two second sliding sleeves are slidably sleeved on the other first clamping rod.

[0012] In some embodiments, the driving mechanism includes a fixed frame fixedly connected to the support rod, a servo motor disposed outside the fixed frame, and two first lead screws. The two first lead screws are symmetrically distributed and rotatably connected to the support rod, and each of the two first lead screws is drivenly connected to a first lead screw nut. The two first lead screw nuts are respectively fixed to two first sliding sleeves at the same end of the two first clamping rods.

[0013] In some embodiments, a first drive shaft and two symmetrically distributed second drive shafts are rotatably connected within the fixed frame. The first drive shaft is driven by the output end of the servo motor, and a driving bevel gear is fixedly connected to the first drive shaft. A driven bevel gear that meshes with the driving bevel gear is fixedly connected to each of the two second drive shafts. The two second drive shafts are driven by the two first lead screws, and a first electromagnetic clutch is connected between the second drive shafts and the first lead screws.

[0014] In some embodiments, a sleeve is fixedly connected inside the fixing frame, a slide cylinder is slidably connected inside the sleeve, the outer end of the slide cylinder is fixed to a second clamping rod near this side, and a second lead screw is rotatably connected inside the sleeve. A second lead screw nut fixed to the slide cylinder is drivenly connected to the second lead screw, and a second electromagnetic clutch is connected between the first drive shaft and the second lead screw.

[0015] In some embodiments, the clamping member includes a clamping block with a sliding cavity inside. The clamping block on the first clamping rod is slidably sleeved on the first clamping rod through the sliding cavity. A first switch is fixedly connected to one of the clamping blocks on the first clamping rod. The first switch is electrically connected to a first electromagnetic clutch through a wire. A first pressure block extending into the sliding cavity is fixedly connected to the first switch. The clamping block on the second clamping rod is slidably sleeved on the second clamping rod through the sliding cavity. A second switch is fixedly connected to one of the clamping blocks on the second clamping rod. The second switch is electrically connected to a second electromagnetic clutch through a wire. A second pressure block extending into the sliding cavity is fixedly connected to the second switch.

[0016] In some embodiments, a soft protective pad is fixedly connected to the outer surface of the clamping block. The outer surface of the protective pad is provided with a plurality of anti-slip protrusions. The clamping block is provided with a clamping structure for squeezing the protective pad. The clamping structure includes a pressure rod and a squeezing member that are slidably connected in the clamping block. One end of the pressure rod is fixed to the squeezing member, and the other end extends into the sliding cavity. A return spring is connected between the pressure rod and the clamping block. The squeezing member is provided with a plurality of squeezing protrusions on the side near the protective pad.

[0017] In some embodiments, a flipping mechanism is provided between the fixed frame and the clamping frame. The flipping mechanism includes a flipping shaft, a rack, and a second cylinder fixed on the clamping frame. Support plates are fixedly connected to both sides of the clamping frame. The flipping shaft is fixed to the fixed frame and rotatably connected to the support plate through a bearing. A gear that meshes with the rack is fixedly connected to the outside of the flipping shaft. The rack is slidably connected to the clamping frame and fixedly connected to the output end of the second cylinder.

[0018] In some embodiments, the lifting mechanism includes a base and a placement plate for placing a wooden door. The upper part of the base is rotatably connected to a first cross arm via a pivot, and the lower part of the placement plate is rotatably connected to a second cross arm via a pivot. The first cross arm and the second cross arm are arranged crosswise, and a hinge pin is rotatably connected to the middle part of the first cross arm. The first cross arm is hinged to the second cross arm via the hinge pin. The end of the first cross arm away from the base is slidably connected to the placement plate, and the end of the second cross arm away from the placement plate is slidably connected to the base. A first cylinder is connected between the first cross arm and the base.

[0019] In some embodiments, the cleaning mechanism includes an air cylinder and a jet pipe. The air cylinder includes a cylinder body and a piston slidably connected to the cylinder body. A piston rod is fixedly connected to the piston, and the outer end of the piston rod is hinged to a first cross arm. The lower end of the cylinder body is hinged to a base. The jet pipe is fixedly connected to the lower surface of the placement plate, and a plurality of jet nozzles are fixedly connected to the jet pipe. A plurality of through slots are provided on the placement plate, and the plurality of jet nozzles are respectively located in the plurality of through slots. A flexible connecting pipe connects the jet pipe and the cylinder body.

[0020] Compared with the prior art, the present invention provides a wooden door color-correcting spray painting device, which has the following beneficial effects:

[0021] 1. Through the coordinated design of the drive mechanism and the clamping mechanism, the drive mechanism drives the two first clamping rods to clamp the wooden door in the front-to-back direction, and simultaneously drives the two second clamping rods to clamp the wooden door in the left and right directions. This achieves the purpose of clamping the wooden door in multiple directions, which can effectively improve the clamping effect and clamping stability. Moreover, the multi-directional clamping actions are carried out simultaneously without the need for additional operations, which can effectively improve the efficiency of clamping work and make the various structures more compact.

[0022] 2. Through the coordinated arrangement of the clamping mechanism and clamping components, after the first and second clamping rods clamp the wooden door through the clamping components, the rotation of the relevant lead screws can be automatically stopped. This achieves the purpose of automatically stopping the clamping action after clamping the wooden door in all directions. This arrangement not only improves the automation level of the clamping work, but also enables the clamping mechanism to automatically clamp wooden doors of more specifications and sizes. After clamping wooden doors of various sizes, the rotation of the relevant lead screws will be automatically triggered and stopped, thereby improving the adaptability and flexibility of the clamping mechanism.

[0023] 3. Through the cooperation of the clamping parts and the tightening structure, after clamping is completed, the first or second clamping rod will squeeze and trigger the tightening structure. This squeezing action can effectively increase the friction between the protective pad and the wooden door, thereby improving the clamping stability and preventing the wooden door from shifting due to uneven force during frequent flipping. At the same time, the squeezing parts do not directly contact the wooden door, so under the protection of the protective pad, it can also prevent the wooden door from being crushed.

[0024] 4. Through the coordinated design of the lifting mechanism and the cleaning mechanism, the space for flipping can be provided by controlling the lowering of the placement plate before flipping. During the descent of the placement plate, the cleaning mechanism will also be activated to achieve automatic air jet cleaning of the lower surface of the wooden door. As the placement plate slowly descends, the air jet nozzles will also descend and move further away from the wooden door, thereby gradually increasing the area of ​​the lower surface of the wooden door that can be blown. While ensuring the effective area of ​​air jet cleaning, the gradual increase in the blowing range can also achieve the purpose of dynamic blowing to a certain extent, resulting in better cleaning effect.

[0025] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the hereinafter. Alternatively, they may be learned from the practice of the invention. Attached Figure Description

[0026] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0027] Figure 2 This is a schematic diagram of a partial cross-sectional view of the present invention.

[0028] Figure 3 This is a frontal three-dimensional structural diagram of the lifting mechanism;

[0029] Figure 4 This is a top view of the lifting mechanism.

[0030] Figure 5 This is a top-view sectional view of a partial structure of the lifting mechanism;

[0031] Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle;

[0032] Figure 7 This is a top-view sectional view of a partial structure of the clamping mechanism;

[0033] Figure 8 This is a front sectional view of the clamping component in its unclamped state.

[0034] Figure 9 This is a front sectional view of the clamping component in the clamping state.

[0035] Figure 10 This is a frontal three-dimensional structural diagram of the lifting mechanism;

[0036] Figure 11 This is a schematic diagram of a partial cross-sectional view of the lifting mechanism.

[0037] Figure 12 A frontal three-dimensional structural diagram of the cleaning facility;

[0038] Figure 13 This is a schematic diagram of the front cross-sectional structure of the air cylinder.

[0039] In the diagram: 1. Paint spray tank; 2. Clamping frame; 201. Support plate; 3. Lifting mechanism; 301. Base; 302. Placement plate; 3021. Through slot; 303. First cross arm; 3031. First roller; 304. Second cross arm; 3041. Second roller; 305. First cylinder; 306. Hinge shaft; 4. Clamping mechanism; 401. Support rod; 402. First clamping rod; 403. First sliding sleeve; 404. Second clamping rod; 405. 406. Sliding rod; 5. Second sliding sleeve; 6. Drive mechanism; 501. Fixed frame; 502. Servo motor; 503. First transmission shaft; 504. Driving bevel gear; 505. First lead screw; 5051. First lead screw nut; 506. Second transmission shaft; 507. Driven bevel gear; 508. First electromagnetic clutch; 509. Sleeve; 5010. Sliding cylinder; 5011. Second lead screw; 5012. Second lead screw nut; 5013. Support frame 5014. Second electromagnetic clutch; 5015. Clearance groove; 6. Tilting mechanism; 601. Tilting shaft; 602. Gear; 603. Rack; 604. Second cylinder; 605. Connecting part; 606. Guide rail; 7. Clamping part; 701. Clamping block; 7011. Sliding cavity; 702. Protective pad; 703. Anti-slip protrusion; 704. Guide sleeve; 8. Tightening structure; 801. Pressure rod; 802. Extrusion part; 803. Return spring; 9. Cleaning mechanism; 901, air cylinder; 9011, cylinder body; 9012, piston; 9013, piston rod; 902, air jet pipe; 903, connecting pipe; 904, air jet nozzle; 10, electric slide table; 11, robotic arm; 12, spray gun; 13, partition; 14, filter screen; 15, fan; 16, compartment door; 17, wooden door; 18, first switch; 1801, first pressure block; 19, second switch; 1901, second pressure block; 20, third switch. Detailed Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0041] Reference Figure 1-4A wood door color-correcting and painting device includes a paint spraying chamber 1, an electric slide table 10 fixedly installed inside the paint spraying chamber 1, a robotic arm 11 fixedly installed on the sliding component of the electric slide table 10, and a spray gun 12 for spraying paint installed at the movable end of the robotic arm 11. The paint spraying chamber 1 also includes a clamping frame 2, which has a clamping mechanism 4 for clamping and fixing a wood door 17. The clamping mechanism 4 includes two symmetrically distributed support rods 401, two symmetrically distributed first clamping rods 402 slidably connected between the two support rods 401, and two symmetrically distributed second clamping rods 404 slidably connected between the two first clamping rods 402. Three clamping elements 7 are slidably installed on the first clamping rods 402, and two clamping elements 7 are slidably installed on the second clamping rods 404.

[0042] Both support rods 401 are equipped with drive mechanisms 5, and the drive mechanisms 5 on both sides are symmetrically distributed to drive the first clamping rod 402 and the second clamping rod 404 to slide.

[0043] The lower part of the clamping frame 2 is provided with a lifting mechanism 3, which is used to place the wooden door 17 and control the lifting of the wooden door 17. The lifting mechanism 3 is provided with a cleaning mechanism 9, which is used to clean the bottom surface of the wooden door 17.

[0044] Reference Figure 4-6 Both ends of the two first clamping rods 402 are fixedly connected to the first sliding sleeves 403, and the first sliding sleeves 403 at both ends are slidably sleeved on the two support rods 401 respectively. Both ends of the two second clamping rods 404 are slidably inserted with sliding rods 405. The outer ends of the four sliding rods 405 are fixedly connected to the second sliding sleeves 406, and two of the second sliding sleeves 406 are slidably sleeved on one of the first clamping rods 402, and the other two second sliding sleeves 406 are slidably sleeved on the other first clamping rod 402.

[0045] The drive mechanism 5 includes a fixed frame 501 fixed on the support rod 401, a servo motor 502 located outside the fixed frame 501, and two first lead screws 505. The two first lead screws 505 are symmetrically distributed front and back and rotatably mounted on the support rod 401. Each of the two first lead screws 505 is equipped with a first lead screw nut 5051. The two first lead screw nuts 5051 are respectively fixed to two first sliding sleeves 403 at the same end of the two first clamping rods 402.

[0046] A first drive shaft 503 and two symmetrically distributed second drive shafts 506 are rotatably connected inside the fixed frame 501. The first drive shaft 503 is driven by the output end of the servo motor 502, and a driving bevel gear 504 is fixedly connected to the first drive shaft 503. A driven bevel gear 507 that meshes with the driving bevel gear 504 is fixedly connected to each of the two second drive shafts 506. The two second drive shafts 506 are driven by the two first lead screws 505, and a first electromagnetic clutch 508 is connected between the second drive shafts 506 and the first lead screws 505. The housing of the first electromagnetic clutch 508 is mounted on the fixed frame 501. The second drive shafts 506 are fixedly connected to the input end of the first electromagnetic clutch 508, and the first lead screws 505 are fixedly connected to the output end of the first electromagnetic clutch 508.

[0047] A sleeve 509 is fixed inside the fixed frame 501. A slide cylinder 5010 is slidably installed inside the sleeve 509. The outer end of the slide cylinder 5010 is fixed to the second clamping rod 404 near this side. A second lead screw 5011 is rotatably installed inside the sleeve 509. A second lead screw nut 5012, which is fixed to the slide cylinder 5010, is drivenly connected to the second lead screw 5011. A second electromagnetic clutch 5014 is connected between the first drive shaft 503 and the second lead screw 5011. The housing of the second electromagnetic clutch 5014 is also installed on the fixed frame 501. The first drive shaft 503 is fixedly connected to the input end of the second electromagnetic clutch 5014, and the second lead screw 5011 is fixedly connected to the output end of the second electromagnetic clutch 5014.

[0048] Furthermore, in order to ensure the stability of the second lead screw 5011, a support frame 5013 is fixed at the outer end of the sleeve 509, and the outer end of the second lead screw 5011 is rotatably mounted on the support frame 5013 through a bearing; the slide cylinder 5010 is provided with a relief groove 5015 that is adapted to the support frame 5013, and the relief groove 5015 is slidably sleeved on the outside of the support frame 5013.

[0049] Reference Figure 7-9The clamping member 7 includes a clamping block 701, which has a sliding cavity 7011. The clamping block 701 on the first clamping rod 402 is slidably sleeved on the first clamping rod 402 through the sliding cavity 7011. A first switch 18 is fixedly installed in one of the clamping blocks 701 on the first clamping rod 402. The first switch 18 is electrically connected to the first electromagnetic clutch 508 through a wire, and a first pressure block 1801 extending into the sliding cavity 7011 is fixedly installed on the trigger button of the first switch 18. The clamping block 701 on the second clamping rod 404 is slidably sleeved on the second clamping rod 404 through the sliding cavity 7011. A second switch 19 is fixedly installed in one of the clamping blocks 701 on the second clamping rod 404. The second switch 19 is electrically connected to the second electromagnetic clutch 5014 through a wire, and a second pressure block 1901 extending into the sliding cavity 7011 is fixedly installed on the trigger button of the second switch 19. Both the first switch 18 and the second switch 19 are automatic reset microswitches.

[0050] Guide sleeves 704 are fixedly installed on both the first clamping rod 402 and the second clamping rod 404. The guide sleeves 704 are sleeved on the outside of the clamping block 701 and play a guiding and stabilizing role in the sliding of the clamping block 701.

[0051] A soft protective pad 702 is fixed to the outer surface of the clamping block 701. The protective pad 702 can be made of rubber or silicone, and the outer surface of the protective pad 702 is provided with several anti-slip protrusions 703. The clamping block 701 is provided with a clamping structure 8 for squeezing the protective pad 702. The clamping structure 8 includes a pressure rod 801 and a squeezing member 802 that are slidably installed in the clamping block 701. One end of the pressure rod 801 is fixed to the squeezing member 802, and the other end extends into the sliding cavity 7011 and abuts against the first clamping rod 402 or the second clamping rod 404. A return spring 803 is connected between the pressure rod 801 and the clamping block 701. In the unclamped state, the return spring 803 is already in a certain compressed state. The squeezing member 802 is provided with several squeezing protrusions on the side near the protective pad 702.

[0052] Reference Figure 5 and Figure 6 A flipping mechanism 6 is provided between the fixed frame 501 and the clamping frame 2. The flipping mechanism 6 includes a flipping shaft 601, a rack 603, and a second cylinder 604 fixed on the clamping frame 2. Support plates 201 are fixedly installed on both sides of the clamping frame 2. The flipping shaft 601 is fixed on the fixed frame 501. The servo motor 502 is fixed to the outside of the flipping shaft 601, and the flipping shaft 601 is rotatably connected to the support plate 201 through a bearing. A gear 602 that meshes with the rack 603 is fixedly connected to the outside of the flipping shaft 601. A slider is fixedly installed on the rack 603. A guide rail 606 is fixedly installed on the clamping frame 2. The rack 603 is slidably installed on the guide rail 606 through the slider. A connecting piece 605 is fixed between the output end of the second cylinder 604 and the rack 603.

[0053] Reference Figure 10-13 The lifting mechanism 3 includes a base 301 and a placement plate 302 for placing the wooden door 17. The upper part of the base 301 is rotatably connected to a first cross arm 303 via a pivot, and the lower part of the placement plate 302 is rotatably connected to a second cross arm 304 via a pivot. The first cross arm 303 and the second cross arm 304 are arranged crosswise, and a hinge pin 306 is rotatably connected to the middle of the first cross arm 303. The first cross arm 303 is hinged to the second cross arm 304 via the hinge pin 306. The end of the first cross arm 303 away from the base 301 is slidably connected to the placement plate 302, and the end of the second cross arm 304 away from the placement plate 302 is slidably connected to the base 301. A first cylinder 305 is connected between the first cross arm 303 and the base 301. One end of the first cylinder 305 is hinged to the first cross arm 303, and the other end is hinged to the base 301.

[0054] In order to reduce the sliding friction between the end plates 302 of the first cross arm 303, a first roller 3031 is rotatably mounted on the end of the first cross arm 303, and the first roller 3031 can roll on the plate 302; and in order to reduce the sliding friction between the second cross arm 304 and the base 301, a second roller 3041 is rotatably mounted on the end of the second cross arm 304, and the second roller 3041 can roll on the base 301.

[0055] The cleaning mechanism 9 includes an air cylinder 901 and an air jet pipe 902. The air cylinder 901 includes a cylinder body 9011 and a piston 9012 slidably connected inside the cylinder body 9011. A piston rod 9013 is fixedly connected to the piston 9012. The outer end of the piston rod 9013 is hinged to the first cross arm 303. The lower end of the cylinder body 9011 is hinged to the base 301. The air jet pipe 902 is fixedly connected to the lower surface of the placement plate 302, and several air nozzles 904 are fixedly connected to the air jet pipe 902. Several through slots 3021 are opened on the placement plate 302, and several air nozzles 904 are respectively located in several through slots 3021. A flexible connecting pipe 903 connects the air jet pipe 902 and the cylinder body 9011.

[0056] To improve the cleaning effect of the air jet, multiple cleaning mechanisms 9 can be set up and arranged at equal intervals along the front-to-back direction (the width direction of the wooden door 17).

[0057] The front of the paint spray chamber 1 is open and equipped with a door 16, which also has a transparent window. Inside the paint spray chamber 1, behind the clamping frame 2, a partition 13 is fixedly installed to divide the inner cavity of the paint spray chamber 1 into a spraying chamber and a negative pressure chamber. The electric slide 10, robotic arm 11, spray gun 12, clamping frame 2, and lifting mechanism 3 are all located in the spraying chamber. The upper surface of the paint spray chamber 1, above the negative pressure chamber, is equipped with a fan 15 to draw air out of the negative pressure chamber, thereby creating a negative pressure inside the chamber. The partition 13 has holes in which filters 14 are installed to filter paint-containing air. When a negative pressure is generated in the negative pressure chamber, paint-containing air can be drawn into the spraying chamber through the filters 14 and filtered, thus achieving the purpose of filtering paint-containing air. The air outlet of the fan 15 is connected to an external air purification device to deliver air to the external air purification device for further purification.

[0058] In this invention, when painting is required, the sanded wooden door 17 is placed on the placement plate 302. At this time, the wooden door 17 is located within the rectangular frame formed by the two first clamping rods 402 and the two second clamping rods 404. Then, the electric slide table 10, the robotic arm 11, and the spray gun 12 can be started to paint the upper surface and four sides of the wooden door 17.

[0059] After the painting is completed, the wooden door 17 needs to be flipped over. At this time, the servo motors 502 on both sides are started to drive the clamping mechanism 4 to clamp the wooden door 17. During this process, the output end of the servo motor 502 can drive the first transmission shaft 503 to rotate slowly. The rotating first transmission shaft 503 can drive the two second transmission shafts 506 to rotate through the active bevel gear 504 and the two driven bevel gears 507. Since the first electromagnetic clutch 508 and the second electromagnetic clutch 5014 are both energized in this state, the input and output ends of the first electromagnetic clutch 508 and the second electromagnetic clutch 5014 are locked in the transmission state. Therefore, the two second transmission shafts 506 can drive the front and rear first lead screws 505 to rotate through the first electromagnetic clutch 508 connected to them, and the first transmission shaft 503 can also drive the second lead screw 5011 to rotate slowly through the second electromagnetic clutch 5014.

[0060] The rotation of the two first lead screws 505 can drive the two first lead screw nuts 5051 and the first sliding sleeve 403 to slide towards the fixed frame 501 at the same time. At this time, the drive mechanism 5 on the other side will also drive the two first lead screw nuts 5051 and the first sliding sleeve 403 inside to slide towards the fixed frame 501 at the same time. Therefore, through the cooperation of the two drive mechanisms 5 on the left and right sides, the two first clamping rods 402 can be driven to slide towards the wooden door 17 at the same time until the clamping parts 7 on the first clamping rods 402 clamp the wooden door 17 in the front and back direction.

[0061] While the two first clamping rods 402 are clamping the wooden door 17 in the front and back direction, the second lead screw 5011 will also drive the second lead screw nut 5012, slide cylinder 5010 and second clamping rod 404 to slide closer to the wooden door 17 by rotating. As a result, the drive mechanisms 5 on both sides will also push the second clamping rods 404 on both sides closer to the sides of the wooden door 17 until the clamping parts 7 on the second clamping rods 404 clamp the wooden door 17 in the left and right directions. Thus, the clamping mechanism 4 can also complete the left and right clamping action at the same time as clamping the wooden door 17 in the front and back direction.

[0062] The state of the clamping member 7 on the first clamping bar 402 in the unclamped state is as shown in the attached figure. Figure 7 As shown, at this time, the first clamping rod 402 abuts against the inner wall of the sliding cavity 7011 away from the protective pad 702. Therefore, during the process of the clamping member 7 on the first clamping rod 402 clamping the wooden door 17, the clamping block 701 will slide synchronously towards the wooden door 17 with the first clamping rod 402 until the protective pad 702 on the clamping block 701 contacts the wooden door 17. Then, the first clamping rod 402 will continue to move closer to the wooden door 17, while the clamping block 701 stops moving due to obstruction. Therefore, the first clamping rod 402 will slide a certain distance in the sliding cavity 7011 until the first clamping rod 402 abuts against the inner wall of the sliding cavity 7011 near the protective pad 702. At this time, the first clamping rod 402 can apply a squeezing force to the wooden door 17 through the clamping block 701 and the protective pad 702. This achieves the clamping action. After the first clamping rod 402 abuts against the inner wall of the sliding cavity 7011 near the protective pad 702, it will also squeeze the first pressure block 1801, thereby triggering the first switch 18. At this time, the first switch 18 can control all the first electromagnetic clutches 508 to be de-energized. After the power is de-energized, the locking transmission between the output end and the input end of the first electromagnetic clutch 508 will be disconnected. Therefore, although the second transmission shaft 506 will continue to rotate, it will not drive the first lead screw 505 to rotate, thereby stopping the sliding of the first lead screw nut 5051, the first sliding sleeve 403 and the first clamping rod 402. This achieves the automatic stopping of the clamping action after the first clamping rod 402 and the clamping member 7 clamp the wooden door 17 in the front and back direction.

[0063] Similarly, since the state of the clamping member 7 on the second clamping rod 404 in the unclamped state is as shown in the attached figure... Figure 7 With appendix Figure 8As shown, at this time, the second clamping rod 404 also abuts against the inner wall of the sliding cavity 7011 away from the protective pad 702. Therefore, during the clamping process of the clamping member 7 on the second clamping rod 404 clamping the wooden door 17, the above-mentioned action will also be performed. The second clamping rod 404 also presses the second pressure block 1901. Therefore, the second clamping rod 404 will also press and trigger the second switch 19 as the first clamping rod 402 triggers the first switch 18. At this time, the second switch 19 can control all the second electromagnetic clutches 5014 to be de-energized. Therefore, the second lead screw 5011 will also stop rotating, thereby stopping the sliding of the second lead screw nut 5012, the slide cylinder 5010 and the second clamping rod 404. This achieves the goal of clamping the wooden door 17 in the left and right directions with the second clamping rod 404 and the clamping member 7 and then automatically stopping the clamping action. Finally, the servo motor 502 is stopped, and the goal of clamping the wooden door 17 in the front, back and left and right directions and then automatically stopping the clamping action is achieved.

[0064] Furthermore, during the sliding process of the first clamping rod 402 or the second clamping rod 404 within the sliding cavity 7011, the pressure rod 801 will also slide, further compressing the return spring 803. The pressure rod 801 will then push the pressing member 802 to slide towards the protective pad 702 and compress the protective pad 702. This compression action can effectively increase the friction between the protective pad 702 and the wooden door 17, thereby improving the clamping stability. At the same time, the pressing member 802 does not directly contact the wooden door 17, so the protective pad 702 can prevent damage to the wooden door 17.

[0065] After clamping the wooden door 17, the telescopic end of the first cylinder 305 is controlled to retract. At this time, the telescopic end of the first cylinder 305 pulls the first cross arm 303 to rotate downward. The first cross arm 303 then drives the second cross arm 304 to rotate downward through the hinge 306, thereby causing the placement plate 302 to move slowly downward. Since the wooden door 17 has been clamped by the clamping mechanism 4, the wooden door 17 will not descend. Furthermore, as the first cross arm 303 rotates downward, it also pushes the piston rod 9013 and piston 9012 to slide inside the cylinder 9011, thereby transporting the air inside the cylinder 9011 to the jet pipe 902 through the connecting pipe 903, and finally spraying it upward onto the lower surface of the wooden door 17 through the jet nozzle 904, thereby blowing away the impurities adhering to the lower surface of the wooden door 17, achieving the purpose of automatic jet cleaning of the lower surface of the wooden door 17. As the placement plate 302 slowly descends, the jet nozzle 904 also descends accordingly and the distance from the wooden door 17 increases, thereby gradually increasing the area of ​​the lower surface of the wooden door 17 that can be blown. While ensuring the effective area of ​​jet cleaning, the gradual increase in the blowing range can also achieve the purpose of dynamic blowing to a certain extent, making the blowing and cleaning effect better.

[0066] After the placement plate 302 is lowered to a certain height, it stops descending. Then, the telescopic end of the second cylinder 604 is controlled to extend outward a certain distance. At this time, the telescopic end of the second cylinder 604 can push the rack 603 to slide synchronously through the connector 605, and drive the flipping shaft 601 to rotate 180 degrees on the support plate 201 through the gear 602. During this process, the flipping shaft 601 can drive the support rod 401, the first clamping rod 402 and the second clamping rod 404 to rotate synchronously through the fixing frame 501, so as to achieve the purpose of flipping the wooden door 17.

[0067] After flipping, the upper surface of the wooden door 17 is then painted. After painting, the placement plate 302 is controlled to rise back to its original position and rest against the lower surface of the wooden door 17 again. Furthermore, a third switch 20 is installed outside the paint spray chamber 1. The third switch 20 is electrically connected to the first electromagnetic clutch 508 and the second electromagnetic clutch 5014 via wires, and is used to control the re-energization of the first electromagnetic clutch 508 and the second electromagnetic clutch 5014 after a power outage. Therefore, after the painting is finished, the clamping mechanism 4 needs to be reset and the wooden door 17 needs to be released. At this time, the first electromagnetic clutch 508 and the second electromagnetic clutch 5014 are re-energized by triggering the third switch 20. After being energized, the first electromagnetic clutch 508 and the second electromagnetic clutch 5014 can connect the transmission between the first lead screw 505 and the second transmission shaft 506 and the transmission between the first transmission shaft 503 and the second lead screw 5011. Therefore, when the output end of the servo motor 502 is reversed, the first lead screw 505 and the second lead screw 5011 can be reversed, thereby driving the clamping mechanism 4 to reset and the wooden door 17 to be released. During this process, the first switch 18 and the second switch 19 will automatically reset, and under the action of the reset spring 803, the pressure rod 801 and the pressing member 802 will be reset. The pressure rod 801 will then press the first clamping rod 402 or the second clamping rod 404 during the reset sliding. Through this pressing action, the clamping block 701 and the first clamping rod 402, as well as the clamping block 701 and the second clamping rod 404, will be reset, preparing for the next painting. Finally, the painted wooden door 17 can be removed from the device.

[0068] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

Claims

1. A wood door color-correcting spray painting device, comprising a spray painting chamber (1), an electric slide (10) provided inside the spray painting chamber (1), a robotic arm (11) provided on the electric slide (10), and a spray gun (12) provided on the robotic arm (11), characterized in that: The spray booth (1) is also equipped with a clamping frame (2), and the clamping frame (2) is equipped with a clamping mechanism (4) for clamping and fixing the wooden door (17). The clamping mechanism (4) includes two symmetrically distributed support rods (401), two symmetrically distributed first clamping rods (402) are slidably connected between the two support rods (401), and two symmetrically distributed second clamping rods (404) are slidably connected between the two first clamping rods (402). Several clamping parts (7) are slidably connected on the first clamping rods (402) and the second clamping rods (404). Both of the support rods (401) are provided with a drive mechanism (5) for driving the first clamping rod (402) and the second clamping rod (404) to slide; The lower part of the clamping frame (2) is provided with a lifting mechanism (3) for placing the wooden door (17) and controlling the lifting of the wooden door (17). The lifting mechanism (3) is provided with a cleaning mechanism (9) for cleaning the bottom surface of the wooden door (17).

2. The wooden door color-correcting spray painting device according to claim 1, characterized in that: Both ends of the two first clamping rods (402) are fixedly connected to first sliding sleeves (403), and the first sliding sleeves (403) at both ends are slidably sleeved on the two support rods (401). Both ends of the two second clamping rods (404) are slidably inserted with sliding rods (405). The outer ends of the four sliding rods (405) are fixedly connected to second sliding sleeves (406), and two of the second sliding sleeves (406) are slidably sleeved on one of the first clamping rods (402), and the other two second sliding sleeves (406) are slidably sleeved on the other first clamping rod (402).

3. The wooden door color-correcting and painting device according to claim 2, characterized in that: The drive mechanism (5) includes a fixed frame (501) fixedly connected to the support rod (401), a servo motor (502) located outside the fixed frame (501), and two first lead screws (505). The two first lead screws (505) are symmetrically distributed and rotatably connected to the support rod (401). Each of the two first lead screws (505) is connected to a first lead screw nut (5051). The two first lead screw nuts (5051) are respectively fixed to two first sliding sleeves (403) at the same end of the two first clamping rods (402).

4. The wooden door color-correcting and painting device according to claim 3, characterized in that: The fixed frame (501) is rotatably connected to a first drive shaft (503) and two symmetrically distributed second drive shafts (506). The first drive shaft (503) is connected to the output end of the servo motor (502), and a driving bevel gear (504) is fixedly connected to the first drive shaft (503). A driven bevel gear (507) that meshes with the driving bevel gear (504) is fixedly connected to each of the two second drive shafts (506). The two second drive shafts (506) are connected to two first lead screws (505) respectively, and a first electromagnetic clutch (508) is connected between the second drive shafts (506) and the first lead screws (505).

5. The wooden door color-correcting and painting device according to claim 4, characterized in that: A sleeve (509) is fixedly connected inside the fixed frame (501), and a slide cylinder (5010) is slidably connected inside the sleeve (509). The outer end of the slide cylinder (5010) is fixed to a second clamping rod (404) near this side, and a second lead screw (5011) is rotatably connected inside the sleeve (509). A second lead screw nut (5012) fixed to the slide cylinder (5010) is driven connected to the second lead screw (5011). A second electromagnetic clutch (5014) is connected between the first drive shaft (503) and the second lead screw (5011).

6. The wooden door color-correcting spray painting device according to claim 5, characterized in that: The clamping member (7) includes a clamping block (701), which has a sliding cavity (7011). The clamping block (701) on the first clamping rod (402) is slidably sleeved on the first clamping rod (402) through the sliding cavity (7011). A first switch (18) is fixedly connected in one of the clamping blocks (701) on the first clamping rod (402). The first switch (18) is electrically connected to the first electromagnetic clutch (508) through a wire. An extension extending to the sliding cavity is fixedly connected to the first switch (18). The first pressure block (1801) inside (7011) and the clamping block (701) on the second clamping rod (404) are slidably sleeved on the second clamping rod (404) through the sliding cavity (7011). A second switch (19) is fixedly connected in one of the clamping blocks (701) on the second clamping rod (404). The second switch (19) is electrically connected to the second electromagnetic clutch (5014) through a wire. A second pressure block (1901) extending into the sliding cavity (7011) is fixedly connected on the second switch (19).

7. The wooden door color-correcting spray painting device according to claim 6, characterized in that: A soft protective pad (702) is fixedly connected to the outer surface of the clamping block (701). The outer surface of the protective pad (702) is provided with several anti-slip protrusions (703). The clamping block (701) is provided with a pressing structure (8) for squeezing the protective pad (702). The pressing structure (8) includes a pressure rod (801) and a squeezing member (802) that are slidably connected in the clamping block (701). One end of the pressure rod (801) is fixed to the squeezing member (802), and the other end extends into the sliding cavity (7011). A return spring (803) is connected between the pressure rod (801) and the clamping block (701). The squeezing member (802) is provided with several squeezing protrusions on the side near the protective pad (702).

8. The wooden door color-correcting spray painting device according to claim 3, characterized in that: A flipping mechanism (6) is provided between the fixed frame (501) and the clamping frame (2). The flipping mechanism (6) includes a flipping shaft (601), a rack (603) and a second cylinder (604) fixed on the clamping frame (2). Support plates (201) are fixedly connected to both sides of the clamping frame (2). The flipping shaft (601) is fixed on the fixed frame (501) and is rotatably connected to the support plate (201) through a bearing. A gear (602) that meshes with the rack (603) is fixedly connected to the outside of the flipping shaft (601). The rack (603) is slidably connected to the clamping frame (2) and fixedly connected to the output end of the second cylinder (604).

9. The wooden door color-correcting and painting device according to claim 1, characterized in that: The lifting mechanism (3) includes a base (301) and a placement plate (302) for placing a wooden door (17). The upper part of the base (301) is rotatably connected to a first cross arm (303) via a pivot, and the lower part of the placement plate (302) is rotatably connected to a second cross arm (304) via a pivot. The first cross arm (303) and the second cross arm (304) are arranged crosswise, and the middle part of the first cross arm (303) is rotatably connected to a hinge (306). The first cross arm (303) is hinged to the second cross arm (304) via the hinge (306). The end of the first cross arm (303) away from the base (301) is slidably connected to the placement plate (302), and the end of the second cross arm (304) away from the placement plate (302) is slidably connected to the base (301). A first cylinder (305) is connected between the first cross arm (303) and the base (301).

10. The wooden door color-correcting spray painting device according to claim 9, characterized in that: The cleaning mechanism (9) includes an air cylinder (901) and an air jet pipe (902). The air cylinder (901) includes a cylinder body (9011) and a piston (9012) slidably connected inside the cylinder body (9011). A piston rod (9013) is fixedly connected to the piston (9012). The outer end of the piston rod (9013) is hinged to the first cross arm (303). The lower end of the cylinder body (9011) is hinged to the base (301). The air jet pipe (902) is fixedly connected to the lower surface of the placement plate (302), and several air nozzles (904) are fixedly connected to the air jet pipe (902). Several through slots (3021) are opened on the placement plate (302), and several air nozzles (904) are respectively located in several through slots (3021). A soft connecting pipe (903) is connected between the air jet pipe (902) and the cylinder body (9011).

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