Fluorocarbon aluminum veneer spraying production line and its spraying process

Abstract

The present invention discloses a fluorocarbon aluminum single plate spraying production line and a spraying process thereof, relating to the technical field of fluorocarbon aluminum single plate, comprising a spraying mechanism, and also comprising: a curing mechanism, which is installed on one side of the spraying mechanism and is used for curing the surface coating of a workpiece; a hanging conveying mechanism, which is installed inside the spraying mechanism and the curing mechanism and is used for conveying the workpiece; a workpiece control mechanism, which is installed inside the spraying mechanism and is used for controlling the stability and distance of the workpiece during spraying; the present invention installs the workpiece control mechanism so that the distance between the spray gun group and different positions of the workpiece is always consistent when the spray gun group sprays up and down reciprocatingly, thereby avoiding the situation where the spraying thickness is uneven due to different distances between different positions of the workpiece and the spray gun group, and generating a downward pulling force on the workpiece, the pulling force makes the workpiece more stable and not easy to shake, thereby avoiding the fluid sprayed by the spray gun group causing impact and shaking on the workpiece, resulting in a change in the distance between the workpiece and the spray gun group, thereby affecting the uniformity of the spraying thickness.

Description

Technical Field

[0001] The present invention relates to the technical field of fluorocarbon aluminum veneer panels, and in particular to a fluorocarbon aluminum veneer spraying production line and a spraying process thereof. Background Art

[0002] Fluorocarbon aluminum veneer is a high-performance metal material commonly used in architectural decoration, such as fluorocarbon aluminum veneer curtain wall. Fluorocarbon aluminum veneer curtain wall is composed of multiple box-shaped aluminum veneers. Moreover, fluorocarbon aluminum veneer combines the lightness and high strength of aluminum with the excellent weather resistance and corrosion resistance of fluorocarbon coating.

[0003] In order to ensure the weather resistance and corrosion resistance of the aluminum veneer curtain wall, it needs to be coated and sprayed. The existing spraying production line uses a hanging conveying structure to suspend and convey the aluminum veneer to the spraying station. The bottom of the suspended aluminum veneer will be tilted due to the position of the upper hook. The tilt of the aluminum veneer will cause the top and bottom of the workpiece to be at different distances from the spray gun. The different distances will result in uneven thickness of the paint sprayed onto the aluminum veneer by the spray gun during spraying. Moreover, the suspended aluminum veneer will swing to a certain extent during the moving and conveying process, causing the distance between the aluminum veneer and the spray gun to change, further affecting the uniformity of the paint. In addition, the impact of the paint on the aluminum veneer during the spraying process will also cause the aluminum veneer to swing, affecting the uniformity of the paint and affecting the performance of the aluminum veneer. Summary of the Invention

[0004] The present invention proposes a fluorocarbon aluminum single plate spraying production line and a spraying process thereof to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] Fluorocarbon aluminum veneer spraying production line, including spraying mechanism, also includes:

[0007] A curing mechanism, which is installed on one side of the spraying mechanism and is used to cure the coating on the surface of the workpiece;

[0008] A hanging conveying mechanism, which is installed inside the spraying mechanism and the curing mechanism and is used for conveying workpieces;

[0009] A workpiece control mechanism, which is installed inside the spraying mechanism and is used to control the stability and distance of the workpiece during spraying;

[0010] The controller is installed on one side of the spraying mechanism and is used to control the operation of the spraying mechanism, the curing mechanism, the hanging conveying mechanism and the workpiece control mechanism.

[0011] Furthermore, the spraying mechanism includes a spraying box, and a feed port 1 is opened on one side of the spraying box;

[0012] A motor is fixed to the inner wall of the top of the spray box, a reciprocating screw is fixed to the output end of the motor, a moving block is sleeved on the external thread of the reciprocating screw, a guide rod is sleeved on the inside of the moving block, and the guide rod is fixed to the bottom inner wall of the spray box;

[0013] A spray gun group is fixed on one side of the moving block, and the multiple spray guns of the spray gun group are respectively connected to multiple paint suppliers.

[0014] Furthermore, the curing mechanism includes a curing box fixed to one side of the spray box, and a second feed port and a discharge port are respectively opened on both sides of the curing box, and the curing box is connected to the spray box through the second feed port;

[0015] Multiple rows of heating lamps are fixed on the inner wall of the curing box.

[0016] Furthermore, the hanging conveying mechanism includes a hanging conveying rail, which passes through the spraying box and the curing box and is fixed to the top inner wall of the spraying box and the curing box;

[0017] A slider is slidably connected to the interior of the suspension conveyor rail, a plurality of hooks are fixed to the bottom of the slider, and workpieces are hung on the plurality of hooks.

[0018] Furthermore, the workpiece control mechanism includes a slide fixed on the inner wall of the bottom of the spray box, a U-shaped slider is sleeved inside the slide, a screw is rotatably connected inside the slide, and the screw is threadedly sleeved inside the U-shaped slider, and a motor 2 is fixed on the inner wall of the bottom of the spray box, and the output end of the motor 2 is fixedly connected to the screw.

[0019] Furthermore, the workpiece control mechanism also includes a rotating shaft rotatably connected to the inside of the U-shaped slider, and there is strong friction between the rotating shaft and the U-shaped slider. A bevel gear 1 is fixed to one end of the rotating shaft, and a bevel gear 2 is engaged with one side of the bevel gear 1. A connecting shaft is fixed to one end of the bevel gear 2, and a one-way gear 1 and a one-way gear 3 are installed at one end of the connecting shaft. The outside of the connecting shaft is rotatably connected to a mounting plate, and the mounting plate is fixedly connected to the U-shaped slider. Rack 1 and rack 2 are fixed to one side of the slide groove, and the one-way gear 1 cooperates with rack 1, and the one-way gear 3 cooperates with rack 2.

[0020] The top end face of said sliding arm is fixedly provided with a toothed connecting strip which is cooperatively connected with said toothed connecting gear. The toothed connecting gear is cooperatively connected with said toothed connecting gear.

[0021] A plurality of laser distance detectors are fixed on one side of the spray box.

[0022] Furthermore, the controller is fixed on the outer wall of the spray box, and the controller is electrically connected to the laser distance detector, the push rod motor, the motor 1, the heating lamp, the hanging conveyor rail, the motor 2 and the spray gun group respectively.

[0023] The fluorocarbon aluminum veneer spraying process, which is applicable to the above-mentioned fluorocarbon aluminum veneer spraying production line, comprises the following steps:

[0024] Step 1: The controller starts the hanging conveyor rail so that the slider drives the hook and the workpiece from the feed port into the interior of the spray box. The laser distance detector starts to emit laser. After the workpiece moves to one side of the laser distance detector, the laser distance detector transmits the signal to the controller, and the controller stops the operation of the hanging conveyor rail.

[0025] Step 2: Start motor 2 to drive the screw to rotate, so that the U-shaped slider drives the rotating shaft, bevel gear 1, bevel gear 2, one-way gear 1, mounting plate, mounting block, reciprocating screw 2, one-way gear 2, guide rod 2, movable plate, guide rod 3, spring, movable plate, push rod motor and electromagnet to move away from feed port 1 and to the rear of the workpiece. When moving, the one-way gear 1 is engaged with the rack 1. The moving direction of the one-way gear 1 meets the direction of the one-way gear 1 driving the connecting shaft to rotate. The rotation of the connecting shaft drives bevel gear 2 and bevel gear 1 Rotate, bevel gear 1 drives the rotating shaft to rotate clockwise, the rotating shaft drives the mounting block to rotate ninety degrees, then the one-way gear 1 is disengaged from the rack 1, the rotation of the mounting block will drive the reciprocating screw 2, one-way gear 2, guide rod 2, moving plate, guide rod 3, spring, movable plate, push rod motor and electromagnet to rotate, and rotate the reciprocating screw 2, one-way gear 2, guide rod 2, moving plate, guide rod 3, spring, movable plate, push rod motor and electromagnet from a horizontal state to a vertical state, so that the electromagnet is located on the back of the workpiece, and then turn off motor 2;

[0026] Step 3: Multiple laser distance detectors obtain the distance of multiple points from top to bottom of the workpiece, and then transmit it to the controller. If it is detected that the distance above the workpiece is smaller than the distance below the workpiece, it means that the bottom of the workpiece is tilted backward, otherwise the bottom of the workpiece is tilted forward. When it tilts forward, the controller starts the push rod motor to push the electromagnet close to the back inner wall of the workpiece that is tilted forward, and starts the electromagnet to absorb the workpiece through the ball bearing. The push rod motor pulls the electromagnet to pull the bottom of the workpiece backward. During the pulling process, the laser distance detector always obtains the distance. When the distance above and below the workpiece is the same, the workpiece is in a vertical state. The distance between the vertical workpiece and the spray gun group remains consistent when spraying up and down.

[0027] Step 4: Then start the suspension conveyor rail and motor 2 to run. The moving speed of the U-shaped slider is the same as the moving speed of the workpiece, and the two move synchronously. During the movement, the one-way gear 2 is meshed with the rack 3 to rotate. At this time, the direction of movement of the one-way gear 2 meets the direction of rotation of the reciprocating screw 2 during rotation, so that the movable plate pulls the guide rod 3, the spring, the movable plate, the push rod motor, the electromagnet and the ball to move downward. The ball reduces the friction between the electromagnet and the workpiece when it moves downward. When the bottom of the electromagnet contacts the bottom inner wall of the workpiece and the position is limited, it cannot move further downward. The movable plate and the movable plate move away from each other to stretch the spring. After the movable plate moves to the bottom wire tail of the reciprocating screw 2, the one-way gear 2 is disengaged from the rack 3, and the electromagnet generates a downward pulling force on the bottom inner wall of the workpiece.

[0028] Step 5: Continue to move synchronously, the workpiece moves to the front of the spray gun group, the spray gun group opens the spray gun for spraying the first layer of paint, the spray gun sprays the paint atomized on the surface of the workpiece, and at the same time the controller controls the motor to drive the reciprocating screw to rotate and move the spray gun group up and down. After the workpiece moves a certain distance, the first layer of paint spraying of the entire workpiece is completed, and the spray gun group is closed;

[0029] Step 6: Continue to move synchronously, the one-way gear 2 is engaged with the rack 4, so that the movable plate and the electromagnet move upward, and the electromagnet is turned off before moving upward. At this time, the connection between the electromagnet and the workpiece is released;

[0030] Step 7: Continue to move synchronously, one-way gear three is meshed with rack two, so the moving direction of one-way gear three at this time cannot drive the connecting shaft to rotate. When the one-way gear three is disengaged from rack two, start motor two to reverse, so that the U-shaped slider moves back, so that the one-way gear three is re-engaged with rack two, and the direction of moving back satisfies the direction of rotation of the connecting shaft driven by the one-way gear three. The connecting shaft drives the rotating shaft counterclockwise through bevel gear two and bevel gear one, so that the mounting block drives reciprocating screw two, one-way gear two, guide rod two, movable plate, guide rod three, spring, movable plate, push rod motor and electromagnet from a vertical state to a horizontal state, and then continues to move back. If it continues to move, the one-way gear one is meshed with rack one but does not meet the direction of rotation of the connecting shaft. Then the U-shaped slider moves to the tail of the screw and stops moving, waiting for the next workpiece to move over.

[0031] Step 8: The workpiece moves through the second feed port into the interior of the curing box. The heating lamp in the curing box cures the paint. The cured workpiece is moved back to the interior of the spray box by the hanging conveyor rail. Then, the second layer of paint is sprayed according to the above steps. The sprayed workpiece is cured again and transported out of the curing box by the hanging conveyor rail.

[0032] Compared with the existing technology, the beneficial effects of the present invention are:

[0033] The present invention installs a workpiece control mechanism to ensure that the distance between the spray gun group and different positions of the workpiece is always consistent during the up and down reciprocating spraying, thereby avoiding the situation where the distance between different positions of the workpiece and the spray gun group is different, resulting in uneven spraying thickness. In addition, a downward pulling force is generated on the workpiece, which makes the workpiece more stable and less likely to shake, thereby avoiding the fluid sprayed by the spray gun group from causing impact and shaking on the workpiece, resulting in a change in the distance between the workpiece and the spray gun group, thereby affecting the uniformity of the spraying thickness. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a first-perspective structural schematic diagram of the fluorocarbon aluminum veneer spraying production line proposed in the present invention.

[0035] Figure 2 This is a second perspective structural schematic diagram of the fluorocarbon aluminum veneer spraying production line proposed in the present invention.

[0036] Figure 3 This is a schematic diagram of the internal structure of the spray box of the fluorocarbon aluminum single panel spray production line proposed in the present invention.

[0037] Figure 4 This is a first-perspective structural schematic diagram of the workpiece control mechanism of the fluorocarbon aluminum veneer spraying production line proposed in the present invention.

[0038] Figure 5This is a second-view structural schematic diagram of the workpiece control mechanism of the fluorocarbon aluminum single panel spraying production line proposed in the present invention.

[0039] Figure 6 for Figure 4 Enlarged structural diagram at point A.

[0040] Figure 7 for Figure 5 Enlarged structural diagram at point B.

[0041] Figure 8 This is a schematic diagram of the ball structure of the fluorocarbon aluminum veneer spraying production line proposed by the present invention.

[0042] In the figure: 1. Spraying mechanism; 11. Spraying box; 12. Feeding port 1; 13. Motor 1; 14. Reciprocating screw 1; 15. Moving block; 16. Guide rod 1; 17. Spray gun assembly; 2. Curing mechanism; 21. Curing box; 22. Heating lamp; 23. Feeding port 2; 24. Discharging port; 3. Suspension conveying mechanism; 31. Suspension conveying rail; 32. Slider; 33. Hook; 34. Workpiece; 4. Workpiece control mechanism; 41. Slide; 42. Screw; 43. Motor 2; 44. U-shaped slider; 45. Rotating shaft; 46. Cone Gear 1; 47. Bevel gear 2; 48. One-way gear 1; 49. Mounting plate; 410. Rack 1; 411. Rack 2; 412. Mounting block; 413. Reciprocating screw 2; 414. One-way gear 2; 415. Guide rod 2; 416. Moving plate; 417. Rack 3; 418. Rack 4; 419. Guide rod 3; 420. Movable plate; 421. Spring; 422. Push rod motor; 423. Electromagnet; 424. Laser distance detector; 425. Ball bearing; 426. One-way gear 3; 5. Controller. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0046] Example 1: Reference Figures 1-8 : Fluorocarbon aluminum veneer spraying production line, including spraying mechanism 1, also includes:

[0047] The curing mechanism 2 is installed on one side of the spraying mechanism 1 and is used to cure the coating on the surface of the workpiece;

[0048] A suspension conveying mechanism 3, which is installed inside the spraying mechanism 1 and the curing mechanism 2 and is used for conveying workpieces;

[0049] A workpiece control mechanism 4 is installed inside the spraying mechanism 1 and is used to control the stability and distance of the workpiece during spraying;

[0050] The controller 5 is installed on one side of the spraying mechanism 1 and is used to control the operation of the spraying mechanism 1 , the curing mechanism 2 , the hanging conveying mechanism 3 and the workpiece control mechanism 4 .

[0051] The spraying mechanism 1 includes a spraying box 11, and a feed port 12 is opened on one side of the spraying box 11;

[0052] A motor 13 is fixed to the top inner wall of the spray box 11, and a reciprocating screw 14 is fixed to the output end of the motor 13. A moving block 15 is sleeved on the external thread of the reciprocating screw 14, and a guide rod 16 is sleeved on the inside of the moving block 15. The guide rod 16 is fixed to the bottom inner wall of the spray box 11;

[0053] A spray gun group 17 is fixed to one side of the moving block 15 , and the multiple spray guns of the spray gun group 17 are respectively connected to multiple paint suppliers.

[0054] The curing mechanism 2 includes a curing box 21 fixed to one side of the spray box 11. A second feed port 23 and a discharge port 24 are respectively provided on both sides of the curing box 21. The curing box 21 is connected to the spray box 11 through the second feed port 23.

[0055] Multiple rows of heating lamps 22 are fixed to the inner wall of the curing box 21 .

[0056] The hanging conveying mechanism 3 includes a hanging conveying rail 31, which passes through the spray box 11 and the curing box 21 and is fixed to the top inner wall of the spray box 11 and the curing box 21;

[0057] A slider 32 is slidably connected to the interior of the suspension conveying rail 31 . A plurality of hooks 33 are fixed to the bottom of the slider 32 , and workpieces 34 are hung on the plurality of hooks 33 .

[0058] The workpiece control mechanism 4 includes a slide 41 fixed to the inner wall of the bottom of the spray box 11, a U-shaped slider 44 is sleeved inside the slide 41, a screw 42 is rotatably connected inside the slide 41, and the screw 42 is threadedly sleeved inside the U-shaped slider 44. A motor 2 43 is fixed to the inner wall of the bottom of the spray box 11, and the output end of the motor 2 43 is fixedly connected to the screw 42.

[0059] The workpiece control mechanism 4 also includes a rotating shaft 45 rotatably connected to the inside of the U-shaped slider 44. There is strong friction between the rotating shaft 45 and the U-shaped slider 44. A bevel gear 1 46 is fixed to one end of the rotating shaft 45. A bevel gear 2 47 is engaged with one side of the bevel gear 1 46. A connecting shaft is fixed to one end of the bevel gear 2 47. A one-way gear 1 48 and a one-way gear 3 426 are installed at one end of the connecting shaft. The external rotation of the connecting shaft is connected to a mounting plate 49. The mounting plate 49 is fixedly connected to the U-shaped slider 44. A rack 1 410 and a rack 2 411 are fixed to one side of the slide groove 41. The one-way gear 1 48 cooperates with the rack 1 410, and the one-way gear 3 426 cooperates with the rack 2 411.

[0060] The workpiece control mechanism 4 also includes a mounting block 412 fixed to the outside of the rotating shaft 45. The top of the mounting block 412 is rotatably connected to a reciprocating screw 2 413. The bottom end of the reciprocating screw 2 413 is installed with a one-way gear 2 414. The other side of the slide 41 is fixed with a rack 3 417 and a rack 4 418. The one-way gear 2 414 cooperates with the rack 3 417 and the rack 4 418. Two guide rods 2 415 are fixed to the top of the mounting block 412. The outer sleeves of the two guide rods 2 415 are provided with a movable plate 416. The movable plate 416 is threadedly sleeved on Two guide rods 3 419 are fixed to the top of the movable plate 416 on the outside of the reciprocating screw rod 2 413 . A movable plate 420 is sleeved on the outside of the two guide rods 3 419 . A spring 421 is sleeved on the outside of the guide rod 3 419 . The bottom end of the spring 421 is fixedly connected to the movable plate 416 , and the top end of the spring 421 is fixedly connected to the movable plate 420 . Push rod motors 422 are fixed on both sides of the movable plate 420 . An electromagnet 423 is fixed to the output end of the push rod motor 422 . A plurality of balls 425 are rotatably connected to one side of the electromagnet 423 .

[0061] A plurality of laser distance detectors 424 are fixed to one side of the spray box 11 .

[0062] The controller 5 is fixed to the outer wall of the spray box 11 and is electrically connected to the laser distance detector 424, the push rod motor 422, the motor 1 13, the heating lamp 22, the hanging conveyor rail 31, the motor 2 43 and the spray gun assembly 17 respectively.

[0063] Example 2: Reference Figures 1-8 This embodiment provides a fluorocarbon aluminum veneer spraying process based on embodiment 1, which is applicable to the above-mentioned fluorocarbon aluminum veneer spraying production line and includes the following steps:

[0064] Step 1: The controller 5 starts the hanging conveyor rail 31 so that the slider 32 drives the hook 33 and the workpiece 34 from the feed port 12 into the interior of the spray box 11. The laser distance detector 424 starts to emit laser light. After the workpiece 34 moves to one side of the laser distance detector 424, the laser distance detector 424 transmits a signal to the controller 5, and the controller 5 stops the operation of the hanging conveyor rail 31.

[0065] Step 2: Start the motor 2 43 to drive the screw 42 to rotate, so that the U-shaped slider 44 drives the rotating shaft 45, bevel gear 1 46, bevel gear 2 47, one-way gear 1 48, mounting plate 49, mounting block 412, reciprocating screw 2 413, one-way gear 2 414, guide rod 2 415, movable plate 416, guide rod 3 419, spring 421, movable plate 420, push rod motor 422 and electromagnet 423 to move away from the feed port 12 and to the rear of the workpiece 34. When moving, the one-way gear 1 48 is engaged with the rack 1 410. The moving direction of the one-way gear 1 48 meets the direction of the one-way gear 1 48 driving the connecting shaft to rotate. The rotation of the connecting shaft drives the bevel gear 2 47 and the bevel gear 1 46 to rotate, and the bevel gear 1 4 6 drives the rotating shaft 45 to rotate clockwise, and the rotating shaft 45 drives the mounting block 412 to rotate ninety degrees, and then the one-way gear 1 48 is disengaged from the rack 1 410. The rotation of the mounting block 412 drives the reciprocating screw 2 413, the one-way gear 2 414, the guide rod 2 415, the movable plate 416, the guide rod 3 419, the spring 421, the movable plate 420, the push rod motor 422 and the electromagnet 423 to rotate, rotating the reciprocating screw 2 413, the one-way gear 2 414, the guide rod 2 415, the movable plate 416, the guide rod 3 419, the spring 421, the movable plate 420, the push rod motor 422 and the electromagnet 423 from the horizontal state to the vertical state, so that the electromagnet 423 is located on the back of the workpiece 34, and then the motor 2 43 is turned off;

[0066] Step 3: Multiple laser distance detectors 424 obtain the distance of multiple points from top to bottom of the workpiece 34, and then transmit it to the controller 5. If it is detected that the distance above the workpiece is smaller than the distance below the workpiece 34, it means that the bottom of the workpiece 34 is tilted backward, otherwise the bottom of the workpiece 34 is tilted forward. When it tilts forward, the controller 5 starts the push rod motor 422 to push the electromagnet 423 close to the back inner wall of the workpiece 34 tilted forward, and starts the electromagnet 423 to suck the workpiece 34 through the ball 425. The push rod motor 422 pulls the electromagnet 423 to pull the bottom of the workpiece 34 backward. During the pulling process, the laser distance detector 424 always obtains the distance. When the distance above and below the workpiece 34 is the same, the workpiece 34 is in a vertical state. When the vertical workpiece 34 is sprayed up and down by the spray gun group 17, the distance between the two is always consistent, so as to avoid the situation where the spraying thickness is uneven due to different distances between different positions of the workpiece and the spray gun group 17;

[0067] Step 4: Then start the suspension conveyor rail 31 and the motor 2 43 to run. The moving speed of the U-shaped slider 44 is the same as the moving speed of the workpiece 34. The two move synchronously. During the movement, the one-way gear 2 414 is engaged and rotated with the rack 3 417. At this time, the moving direction of the one-way gear 2 414 meets the direction of driving the reciprocating screw 2 413 to rotate during the rotation, so that the moving plate 416 pulls the guide rod 3 419, the spring 421, the movable plate 420, the push rod motor 422, the electromagnet 423 and the ball 425 to move downward. The ball 425 reduces the friction between the electromagnet 423 and the workpiece 34 when it moves downward. When the electric After the bottom of the magnet 423 contacts the bottom inner wall of the workpiece 34 and is limited, it cannot move further downward. The movable plate 416 and the movable plate 420 move away from each other, causing the spring 421 to stretch. After the movable plate 416 moves to the bottom end of the reciprocating screw 413, the one-way gear 414 and the rack 417 are disengaged. The electromagnet 423 generates a downward pulling force on the bottom inner wall of the workpiece 34. The pulling force makes the workpiece 34 more stable and less likely to shake, thereby preventing the fluid sprayed from the spray gun assembly 17 from impacting and shaking the workpiece 34, causing the distance between the workpiece 34 and the spray gun assembly 17 to change, thereby affecting the uniformity of the spray thickness.

[0068] Step 5: Continue the synchronous movement, the workpiece 34 moves to the front of the spray gun group 17, the spray gun group 17 starts the spray gun for spraying the first layer of paint, and the spray gun sprays the paint atomized on the surface of the workpiece 34. At the same time, the controller 5 controls the motor 13 to drive the reciprocating screw 14 to rotate and move the spray gun group 17 up and down. After the workpiece 34 moves a certain distance, the first layer of paint spraying of the entire workpiece 34 is completed, and the spray gun group 17 is closed;

[0069] Step 6: Continuing the synchronous movement, the one-way gear 2 414 is meshed with the rack 4 418, causing the movable plate 416 and the electromagnet 423 to move upward. Before the upward movement, the electromagnet 423 is turned off, and the connection between the electromagnet 423 and the workpiece 34 is now released.

[0070] Step 7: Continue to move synchronously, the one-way gear three 426 is engaged with the rack two 411, so the moving direction of the one-way gear three 426 at this time cannot drive the connecting shaft to rotate. When the one-way gear three 426 is disengaged from the rack two 411, the motor two 43 is started to reverse, so that the U-shaped slider 44 moves back, so that the one-way gear three 426 is re-engaged with the rack two 411. The direction of the backward movement satisfies the direction of the one-way gear three 426 driving the connecting shaft to rotate. The connecting shaft drives the rotating shaft 45 counterclockwise through the bevel gear two 47 and the bevel gear one 46. The needle rotates, causing the mounting block 412 to drive the reciprocating screw rod 2 413, the one-way gear 2 414, the guide rod 2 415, the movable plate 416, the guide rod 3 419, the spring 421, the movable plate 420, the push rod motor 422 and the electromagnet 423 to reset from the vertical state to the horizontal state, and then continue to move back. If it continues to move, the one-way gear 1 48 will mesh with the rack 1 410, but it will not meet the direction of driving the connecting shaft to rotate. Then the U-shaped slider 44 moves to the tail of the screw rod 42 and stops moving, waiting for the next workpiece 34 to move over.

[0071] Step 8: The workpiece 34 moves through the second feed port 23 into the interior of the curing box 21. The heating lamp 22 in the curing box 21 cures the paint. The cured workpiece 34 is moved back to the interior of the spray box 11 by the hanging conveyor rail 31. Then, the second layer of paint is sprayed according to the above steps. The sprayed workpiece 34 is cured again. The cured workpiece 34 is transported out of the curing box 21 by the hanging conveyor rail 31.

[0072] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. Fluorocarbon aluminum veneer spraying production line, comprising a spraying mechanism (1), characterized in that: Also includes: A curing mechanism (2) is installed on one side of the spraying mechanism (1) and is used to cure the coating on the surface of the workpiece; A hanging conveying mechanism (3) is installed inside the spraying mechanism (1) and the curing mechanism (2) and is used for conveying workpieces; A workpiece control mechanism (4), which is installed inside the spraying mechanism (1) and is used to control the stability and distance of the workpiece during spraying; A controller (5) is installed on one side of the spraying mechanism (1) and is used to control the operation of the spraying mechanism (1), the curing mechanism (2), the suspension conveying mechanism (3) and the workpiece control mechanism (4); The workpiece control mechanism (4) includes a slide groove (41) fixed to the inner wall of the bottom of the spray box (11), the interior of the slide groove (41) is provided with a U-shaped slider (44), the interior of the slide groove (41) is rotatably connected to a screw rod (42), the screw rod (42) is threadedly sleeved inside the U-shaped slider (44), a motor 2 (43) is fixed to the inner wall of the bottom of the spray box (11), and the output end of the motor 2 (43) is fixedly connected to the screw rod (42); The workpiece control mechanism (4) also includes a rotating shaft (45) rotatably connected to the inside of the U-shaped slider (44), one end of the rotating shaft (45) is fixed with a bevel gear 1 (46), one side of the bevel gear 1 (46) is meshed with a bevel gear 2 (47), one end of the bevel gear 2 (47) is fixed with a connecting shaft, one end of the connecting shaft is installed with a one-way gear 1 (48) and a one-way gear 3 (426), the outside of the connecting shaft is rotatably connected with a mounting plate (49), the mounting plate (49) is fixedly connected to the U-shaped slider (44), one side of the slide groove (41) is fixed with a rack 1 (410) and a rack 2 (411), the one-way gear 1 (48) is matched with the rack 1 (410), and the one-way gear 3 (426) is matched with the rack 2 (411); The workpiece control mechanism (4) also includes a mounting block (412) fixed to the outside of the rotating shaft (45), the top of the mounting block (412) is rotatably connected to a reciprocating screw rod 2 (413), the bottom end of the reciprocating screw rod 2 (413) is installed with a one-way gear 2 (414), the other side of the slide groove (41) is fixed with a rack rod 3 (417) and a rack rod 4 (418), the one-way gear 2 (414) cooperates with the rack rod 3 (417) and the rack rod 4 (418), the top of the mounting block (412) is fixed with two guide rods 2 (415), the outer sides of the two guide rods 2 (415) are provided with a movable plate (416), and the movable plate (416) is threadedly sleeved. On the outside of the reciprocating screw rod 2 (413), two guide rods 3 (419) are fixed on the top of the movable plate (416), and the outer sleeves of the two guide rods 3 (419) are provided with a movable plate (420), and the outer sleeves of the guide rods 3 (419) are provided with a spring (421), the bottom end of the spring (421) is fixedly connected to the movable plate (416), and the top end of the spring (421) is fixedly connected to the movable plate (420), and push rod motors (422) are fixed on both sides of the movable plate (420), and an electromagnet (423) is fixed on the output end of the push rod motor (422), and a plurality of balls (425) are rotatably connected to one side of the electromagnet (423); A plurality of laser distance detectors (424) are fixed to one side of the spray box (11).

2. The fluorocarbon aluminum veneer spraying production line according to claim 1 is characterized in that: The spraying mechanism (1) comprises a spraying box (11), and a feed port (12) is provided on one side of the spraying box (11); A motor 1 (13) is fixed to the top inner wall of the spray box (11), a reciprocating screw 1 (14) is fixed to the output end of the motor 1 (13), a moving block (15) is sleeved on the external thread of the reciprocating screw 1 (14), a guide rod 1 (16) is sleeved on the inside of the moving block (15), and the guide rod 1 (16) is fixed to the bottom inner wall of the spray box (11); A spray gun group (17) is fixed on one side of the moving block (15), and the multiple spray guns of the spray gun group (17) are respectively connected to multiple paint suppliers.

3. The fluorocarbon aluminum veneer spraying production line according to claim 2, characterized in that: The curing mechanism (2) includes a curing box (21) fixed to one side of the spray box (11), and a second feed port (23) and a discharge port (24) are respectively provided on both sides of the curing box (21), and the curing box (21) is connected to the spray box (11) through the second feed port (23); Multiple rows of heating lamps (22) are fixed to the inner wall of the curing box (21).

4. The fluorocarbon aluminum veneer spraying production line according to claim 3 is characterized in that: The hanging conveying mechanism (3) includes a hanging conveying rail (31), the hanging conveying rail (31) passes through the spraying box (11) and the curing box (21), and is fixed to the top inner wall of the spraying box (11) and the curing box (21); A slider (32) is slidably connected to the interior of the suspension conveying rail (31), a plurality of hooks (33) are fixed to the bottom of the slider (32), and workpieces (34) are suspended on the plurality of hooks (33).

5. The fluorocarbon aluminum veneer spraying production line according to claim 4, characterized in that: The controller (5) is fixed to the outer wall of the spray box (11), and the controller (5) is electrically connected to the laser distance detector (424), the push rod motor (422), the motor 1 (13), the heating lamp (22), the hanging conveyor rail (31), the motor 2 (43) and the spray gun group (17).

6. Fluorocarbon aluminum veneer spraying process, which is applicable to the fluorocarbon aluminum veneer spraying production line according to claim 5, characterized in that: The following steps are involved: Step 1: The controller (5) starts the hanging conveyor rail (31) so that the slider (32) drives the hook (33) and the workpiece (34) to enter the interior of the spray box (11) from the first feed port (12), and the laser distance detector (424) starts to emit laser light. After the workpiece (34) moves to one side of the laser distance detector (424), the laser distance detector (424) transmits a signal to the controller (5), and the controller (5) stops the operation of the hanging conveyor rail (31); Step 2: Start the motor 2 (43) to drive the screw (42) to rotate, so that the U-shaped slider (44) drives the rotating shaft (45), bevel gear 1 (46), bevel gear 2 (47), one-way gear 1 (48), mounting plate (49), mounting block (412), reciprocating screw 2 (413), one-way gear 2 (414), guide rod 2 (415), movable plate (416), guide rod 3 (419), spring (421), movable plate (420), push rod motor (422) and electromagnet (423) to move away from the feed port 1 (12) and move to the rear of the workpiece (34). During the movement, the one-way gear 1 (48) is meshed with the rack 1 (410). The moving direction of the one-way gear 1 (48) satisfies the direction of rotation of the connecting shaft driven by the one-way gear 1 (48). The rotation of the connecting shaft drives the bevel gear 2 (47) and the bevel gear 1 (46) to rotate. The bevel gear 1 (46) ) drives the rotating shaft (45) to rotate clockwise, and the rotating shaft (45) drives the mounting block (412) to rotate ninety degrees, and then the one-way gear 1 (48) is disengaged from the rack 1 (410), and the rotation of the mounting block (412) drives the reciprocating screw 2 (413), the one-way gear 2 (414), the guide rod 2 (415), the movable plate (416), the guide rod 3 (419), the spring (421), the movable plate (420), the push rod motor (422) and the electromagnet (423) to rotate, and rotate the reciprocating screw 2 (413), the one-way gear 2 (414), the guide rod 2 (415), the movable plate (416), the guide rod 3 (419), the spring (421), the movable plate (420), the push rod motor (422) and the electromagnet (423) from the horizontal state to the vertical state, so that the electromagnet (423) is located on the back of the workpiece (34), and then the motor 2 (43) is turned off; Step 3: Multiple laser distance detectors (424) obtain the distances of multiple points from top to bottom of the workpiece (34), and then transmit them to the controller (5). If the distance above the workpiece is detected to be smaller than the distance below the workpiece (34), it means that the bottom of the workpiece (34) is tilted backward. Otherwise, the bottom of the workpiece (34) is tilted forward. When tilting forward, the controller (5) starts the push rod motor (422) to push the electromagnet (423) close to the inner wall of the back of the workpiece (34) tilted forward, and starts the electromagnet (423) through the ball (42 5) sucking the workpiece (34), the push rod motor (422) pulls the electromagnet (423) to pull the bottom of the workpiece (34) backward, and the laser distance detector (424) always obtains the distance during the pulling process. When the distance between the top and bottom of the workpiece (34) is the same, the workpiece (34) is in a vertical state. When the vertical workpiece (34) is sprayed up and down by the spray gun assembly (17), the distance between the two is always consistent, thereby avoiding the occurrence of uneven spraying thickness due to different distances between different positions of the workpiece and the spray gun assembly (17); Step 4: Then start the hanging conveyor rail (31) and the second motor (43) to run. The moving speed of the U-shaped slider (44) is the same as the moving speed of the workpiece (34). The two move synchronously. During the movement, the one-way gear (414) and the rack (417) are engaged and rotated. At this time, the direction of movement of the one-way gear (414) meets the direction of rotation of the reciprocating screw (413) during the rotation, so that the moving plate (416) pulls the guide rod (419), the spring (421), the movable plate (420), the push rod motor (422), and the electromagnet (423). and the ball (425) moves downward, the ball (425) reduces the friction between the electromagnet (423) and the workpiece (34) when the electromagnet (423) moves downward, and when the bottom of the electromagnet (423) contacts the bottom inner wall of the workpiece (34) and stops moving downward, the movable plate (416) and the movable plate (420) move away from each other, causing the spring (421) to stretch, and the movable plate (416) moves to the bottom end of the reciprocating screw rod (413), and the one-way gear (414) and the rack (417) are disengaged, and the electromagnet (423) generates a downward pulling force on the bottom inner wall of the workpiece (34); Step 5: Continuing the synchronous movement, the workpiece (34) moves to the front of the spray gun group (17), the spray gun group (17) turns on the spray gun for spraying the first layer of paint, and the spray gun sprays the paint atomized on the surface of the workpiece (34). At the same time, the controller (5) controls the motor 1 (13) to drive the reciprocating screw 1 (14) to rotate and move the spray gun group (17) up and down. After the workpiece (34) moves a certain distance, the first layer of paint spraying of the entire workpiece (34) is completed, and the spray gun group (17) is turned off. Step 6: Continue to move synchronously, the one-way gear 2 (414) is meshed with the rack 4 (418), so that the movable plate (416) and the electromagnet (423) move upward, and the electromagnet (423) is turned off before moving upward. At this time, the electromagnet (423) and the workpiece (34) are disconnected; Step 7: Continue to move synchronously, the one-way gear 3 (426) is meshed with the rack 2 (411), so the movement direction of the one-way gear 3 (426) at this time cannot drive the connecting shaft to rotate. After the one-way gear 3 (426) is disengaged from the rack 2 (411), start the motor 2 (43) to reverse, so that the U-shaped slider (44) moves back, so that the one-way gear 3 (426) and the rack 2 (411) are re-engaged. The direction of the backward movement satisfies the direction of the one-way gear 3 (426) driving the connecting shaft to rotate. The connecting shaft drives the rotating shaft (45) to rotate counterclockwise through the bevel gear 2 (47) and the bevel gear 1 (46). Rotate, so that the mounting block (412) drives the reciprocating screw rod 2 (413), the one-way gear rod 2 (414), the guide rod 2 (415), the movable plate (416), the guide rod rod 3 (419), the spring (421), the movable plate (420), the push rod motor (422) and the electromagnet (423) to reset from the vertical state to the horizontal state, and then continue to move back. If the movement continues, the one-way gear rod 1 (48) will mesh with the rack rod 1 (410) but will not satisfy the direction of driving the connecting shaft to rotate. Then, the U-shaped slider (44) will move to the tail of the screw rod (42) and stop moving, waiting for the next workpiece (34) to move over; Step 8: The workpiece (34) moves through the second feed port (23) and enters the interior of the curing box (21). The heating lamp (22) in the curing box (21) cures the coating. The cured workpiece (34) is moved back to the interior of the spraying box (11) by the hanging conveyor rail (31). Then, the second layer of coating is sprayed according to the above steps. The sprayed workpiece (34) is cured again. The cured workpiece (34) is transported out of the curing box (21) by the hanging conveyor rail (31).

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