Self-cleaning aluminum veneer and preparation device thereof

Abstract

The invention discloses a self-cleaning aluminum veneer and a preparation device thereof.The self-cleaning aluminum veneer comprises an aluminum veneer body with a wear-resistant covering layer sprayed on the surface, and a metal plate spraying method of the wear-resistant covering layer comprises the steps that S1, paint liquid is conveyed to a spray head in a spraying room through a pipeline, the paint liquid added with an anti-ultraviolet agent and an antioxidant is conveyed into two liquid spraying plates hinged to the end of the spray head, and the two liquid spraying plates are connected through a pipeline; and spraying the liquid on the surface of the aluminum veneer through a liquid spraying plate. According to the self-cleaning aluminum veneer and the preparation device thereof, a protection base on the outer side of a spray head abuts against a butt joint base on the inner side of a spraying chamber, the spray head is driven to move in the direction away from the aluminum veneer so as to increase the paint liquid spraying distance, the end of a movable frame promotes a liquid spraying plate to deflect in an external expansion state, the paint liquid spraying position is changed, and the spraying effect is improved. And the push plate pushes the plurality of chock plugs in the other liquid channel for plugging, which is equivalent to changing the spraying pressure of the paint liquid, so that the problem of sagging of the paint liquid on the aluminum veneer is solved, the damage caused by repair after subsequent drying is reduced, and the performance of a covering layer at the corner of the aluminum veneer is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum veneer preparation, and in particular to a self-cleaning aluminum veneer and a preparation device thereof. Background Art

[0002] Aluminum panels are often used in building decoration for outdoor and indoor decoration, and fluorocarbon and multi-layer paint are sprayed on the surface of the aluminum panels to improve the corrosion resistance, durability and high temperature resistance of the aluminum panels.

[0003] According to the publication (announcement) number: CN111974580A, the publication (announcement) date: 2020-11-24, a fluorocarbon aluminum veneer automatic spraying production line is disclosed.

[0004] In the prior art including the above-mentioned patent, both the front and back sides of the aluminum veneer used outdoors need to be sprayed, but in actual use, the edges and corners of the aluminum veneer need to be folded multiple times, and the inner side of the edges and corners perpendicular to the back of the aluminum veneer will not change during the spraying process because the position, spacing and pressure of the paint spraying will not change. That is, the original paint liquid is sprayed vertically to the back of the large area of ​​the aluminum veneer, and when the paint liquid is sprayed directly on the edges and corners of a small area, the paint liquid is prone to excess and forms a certain amount of sagging on the inner side of the corner. When the aluminum veneer is subsequently dried and repaired, secondary defects will be caused, which will reduce the coating performance at the edges and corners of the aluminum veneer, and after being eroded by rainwater, it will be affected by light for a long time, resulting in large-scale cracking of the paint surface, which will cause damage to the aluminum veneer, reduce the aesthetic effect of the aluminum veneer, and increase safety issues. Summary of the invention

[0005] The purpose of the present invention is to provide a self-cleaning aluminum veneer and a preparation device thereof, aiming to solve the above-mentioned problems.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A self-cleaning aluminum veneer includes an aluminum veneer with a wear-resistant covering layer sprayed on the surface, wherein the spraying method of the wear-resistant covering layer includes:

[0008] S1, conveying the paint liquid to the spray head in the spray room through the pipeline, so that the spray head can convey the paint liquid with anti-ultraviolet agent and antioxidant to the two spray plates hinged at the end of the spray head through the two liquid channels therein, and then spray the paint liquid onto the surface of the aluminum veneer through the spray plates;

[0009] S2. The nozzle moves up and down to the corner of the aluminum plate, and the protective seat outside the nozzle is resisted by the docking seat inside the spray booth, and the nozzle is driven away from the aluminum plate, so that the paint liquid can be away from the corner of the aluminum plate;

[0010] S2, the docking seat during the activity is against the driving plate thereon, and the driving plate pushes the movable frame sliding in the nozzle, so that the end of the movable frame is against the deflection of the liquid spraying plate, so that the port of the liquid spraying plate is tilted toward the inside of the corner;

[0011] S4. During the sliding of the movable frame, the push plate installed on it pushes the multiple plugs to move, and the plug blocks one of the liquid channels to reduce the amount of sprayed paint liquid.

[0012] Preferably, the wear-resistant covering layer comprises 50-60 parts of fluorocarbon resin, 5-8 parts of pigment, 2-5 parts each of leveling agent, thickener and defoaming agent, 5-10 parts of anti-ultraviolet agent, 5-10 parts of antioxidant, 2-5 parts of methyl ethyl ketone and 2-4 parts of talc.

[0013] A self-cleaning aluminum veneer preparation device comprises the self-cleaning aluminum veneer described above, a spraying room provided with a hanger and the aluminum veneer, and cross-arranged connecting plates provided on two movable frames, wherein the push plate is provided at the end of the connecting plate;

[0014] A bottom plate for the docking seat to move is fixedly installed in the spray booth, a limit rod for assembling the drive plate is also arranged on the bottom plate, and a third inclined surface for abutting against the limit rod is arranged on the docking seat, so that the limit rod moves close to the aluminum plate;

[0015] The movable frame is provided with a traction plate, the protective seat is provided with a first inclined surface which contacts and cooperates with the docking seat, and the driving plate pushes the traction plate to move synchronously.

[0016] Preferably, it further comprises a protrusion arranged on the liquid spray plate, and the end of the movable frame is provided with a protrusion which abuts against the protrusion.

[0017] Preferably, it also includes an air channel opened in the nozzle, and the air channel port is hingedly provided with the nozzle.

[0018] Preferably, a trigger sheet is fixedly mounted on the protrusion, and a touch sheet that hooks and pulls with the trigger sheet is fixedly mounted on the spray head, so that the spray head and the spray head move synchronously.

[0019] Preferably, it also includes a knob threadedly connected to the nozzle and an elastic frame installed in the liquid channel, a plurality of plugs are arranged in an array on the elastic frame, and the push plate is located between the elastic frame and the plugs.

[0020] Preferably, the protective seat is provided with a second inclined surface, and the knob is provided with a recess that contacts and cooperates with the second inclined surface, so that the knob synchronously pushes the two elastic frames to block the liquid channel.

[0021] Preferably, it also includes:

[0022] A through cavity is provided on the nozzle, wherein a storage cavity opened and closed by a connecting plate is provided in the through cavity;

[0023] The storage cavity and the liquid channel are connected, an air hole connected to the through cavity is opened in the air channel, and a blocking block for opening and closing the air hole is fixedly installed on the connecting plate.

[0024] Preferably, the through cavity port is hingedly provided with an exhaust plate, a plug hole is provided on the blocking block, and the storage cavity is connected to the through cavity, so that the rotation angle of the exhaust plate is adjustable.

[0025] In the above technical scheme, a self-cleaning aluminum veneer and a preparation device thereof provided by the present invention have the following beneficial effects: by moving the nozzle up or down to the corner of the aluminum veneer, the protective seat on the outside of the nozzle is resisted by the docking seat on the inside of the spraying room, and the nozzle is driven to move away from the aluminum veneer, so that the paint liquid can be away from the corner of the aluminum veneer, thereby achieving the purpose of increasing the paint liquid spraying spacing, and the driving plate pushes the movable frame to move laterally until the convex strip at the end of the movable frame resists the convex block on the spray plate, so that the spray plate is deflected in an outward expansion state, and the port of the spray plate is tilted toward the inside of the corner, thereby achieving the purpose of changing the paint liquid spraying position, and during the sliding of the lower movable frame, the push plate on it pushes the multiple plugs in the upper liquid channel to move, and the plugs block the upper liquid channel to reduce the amount of sprayed paint liquid, thereby achieving the purpose of changing the paint liquid spraying pressure, thereby solving the problem of paint liquid sagging on the aluminum veneer, greatly reducing the damage caused by subsequent repair after drying, and ensuring the covering layer performance at the corners of the aluminum veneer. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0027] Figure 1 A schematic diagram of a spray booth, a side section of a rack, and an aluminum panel provided in an embodiment of the present invention;

[0028] Figure 2 A schematic side view of a rack, an aluminum plate and a nozzle provided in an embodiment of the present invention;

[0029] Figure 3 A schematic cross-sectional view of a side portion of a rack, an aluminum plate and a nozzle provided in an embodiment of the present invention;

[0030] Figure 4 for Figure 3 A magnified schematic diagram of point A;

[0031] Figure 5 for Figure 3An enlarged schematic diagram of point B;

[0032] Figure 6 for Figure 3 An enlarged schematic diagram of point C;

[0033] Figure 7 A schematic diagram of a partial cross-sectional side view of a nozzle provided by an embodiment of the present invention;

[0034] Figure 8 A schematic diagram of a partial cross-sectional view of a nozzle provided in an embodiment of the present invention;

[0035] Fig. 9 A schematic diagram of two movable frame structures provided in an embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 1. Spraying room; 11. Hanging rack; 12. Aluminum veneer; 2. Nozzle; 21. Liquid channel; 211. Liquid hole; 22. Air channel; 221. Air hole; 23. Spray plate; 231. Bump; 232. Trigger plate; 233. Bump; 24. Spray head; 241. Flip plate; 242. Touch plate; 3. Movable frame; 31. Bump; 32. Connecting plate; 321. Block; 33. Push plate; 34. Pull plate; 35. Storage chamber; 351. Ventilation plate; 36. Through chamber; 361. Exhaust plate; 4. Knob; 41. Elastic frame; 42. Plug; 5. Protective seat; 51. First inclined plane; 52. Second inclined plane; 6. Bottom plate; 61. Docking seat; 611. Third inclined plane; 62. Limit rod; 621. Drive plate. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0039] Embodiment 1

[0040] A self-cleaning aluminum veneer includes an aluminum veneer 12 with a wear-resistant coating layer sprayed on the surface, and a method for spraying the wear-resistant coating layer includes:

[0041] S1, conveying the paint liquid to the spray head 2 in the spray booth 1 through the pipeline, so that the spray head 2 conveys the paint liquid with anti-ultraviolet agent and antioxidant to the two spray plates 23 hinged at the ends of the spray head 2 through the two liquid channels 21 therein, and then sprays the paint liquid onto the surface of the aluminum veneer 12 through the spray plates 23;

[0042] S2, by moving the nozzle 2 upward or downward to the corner of the aluminum veneer 12, the protective seat 5 outside the nozzle 2 is resisted by the docking seat 61 inside the spray booth 1, and the nozzle 2 is driven away from the aluminum veneer 12, so that the paint liquid can be away from the corner of the aluminum veneer 12, so as to achieve the purpose of increasing the spraying distance of the paint liquid;

[0043] S3, during the activity, the docking seat 61 prompts the limit rod 62 to move toward the aluminum single plate 12, and makes the driving plate 621 on the limit rod 62 move synchronously, and when the nozzle 2 reaches the corner of the aluminum single plate 12, the traction plate 34 on the movable frame 3 is in the direction of the driving plate 621, so that the driving plate 621 pushes the movable frame 3 to move horizontally, until the convex strip 31 at the end of the movable frame 3 hits the convex block 231 on the liquid spraying plate 23, so that the liquid spraying plate 23 is deflected in an outward expansion state, and the port of the liquid spraying plate 23 is tilted toward the inside of the corner, so as to achieve the purpose of changing the spraying position of the paint liquid;

[0044] S4. During the sliding of the lower movable frame 3, the push plate 33 thereon pushes the multiple plugs 42 in the upper liquid channel 21 to move, and the plugs 42 block the upper liquid channel 21 to reduce the amount of paint sprayed, thereby achieving the purpose of changing the paint spraying pressure, thereby solving the problem of paint dripping on the aluminum single plate 12, greatly reducing the damage caused by subsequent repair after drying, ensuring the performance of the covering layer at the corners of the aluminum single plate 12, and avoiding the occurrence of paint surface cracking.

[0045] As an embodiment further provided by the present invention, the wear-resistant covering layer includes 50-60 parts of fluorocarbon resin, 5-8 parts of pigment, 2-5 parts each of leveling agent, thickener and defoaming agent, 5-10 parts of anti-ultraviolet agent, 5-10 parts of antioxidant, 2-5 parts of methyl ethyl ketone and 2-4 parts of talc.

[0046] Specifically, the production of the wear-resistant cover layer includes the following steps:

[0047] S1. Prepare the required raw materials of 58 parts of fluorocarbon resin, 7 parts of pigment, 2 parts of leveling agent, 3 parts of thickener, 3 parts of defoamer, 10 parts of UV inhibitor, 10 parts of antioxidant, 3 parts of methyl ethyl ketone and 4 parts of talcum powder according to the paint formula;

[0048] S2. Mix the fluorocarbon resin, pigment, leveling agent, thickener and defoamer evenly, then gradually add methyl ethyl ketone and stir thoroughly with a mixer until a uniform paint without particles is formed;

[0049] S3. During the stirring process, gradually add the measured anti-ultraviolet agent and antioxidant into the paint, and continue stirring until evenly mixed;

[0050] S4. The stirred paint is filtered through a filter to remove impurities and particles to ensure the purity of the paint;

[0051] S5. Add talcum powder to the mixer to adjust the viscosity, dryness and other properties of the paint as needed to meet the spraying requirements;

[0052] S6. Test the paint after adding UV and antioxidants to ensure that its performance meets the requirements.

[0053] Embodiment 2

[0054] like Figure 1-9 As shown, a self-cleaning aluminum veneer preparation device includes the above-mentioned self-cleaning aluminum veneer, and also includes a spraying room 1 provided with a hanger 11 and an aluminum veneer 12, and also includes two connecting plates 32 arranged in a cross arrangement on two movable frames 3, and a push plate 33 is arranged at the end of the connecting plate 32;

[0055] A bottom plate 6 is fixedly installed in the spray booth 1 to provide a docking seat 61 for movement. A limit rod 62 for assembling a drive plate 621 is also provided on the bottom plate 6. A third inclined surface 611 is provided on the docking seat 61 to abut against the limit rod 62 and enable the limit rod 62 to move close to the aluminum plate 12.

[0056] The movable frame 3 is provided with a traction plate 34 , the protective seat 5 is provided with a first inclined surface 51 which contacts and cooperates with the docking seat 61 , and the driving plate 621 pushes the traction plate 34 to move synchronously.

[0057] Specifically, the aluminum veneer 12 is hung on the hook of the rack 11, so that the aluminum veneer 12 can move with the hook and enter the spray booth 1 to be sprayed by the spray head 2. The spray booth 1, the rack 11 and the aluminum veneer 12 are all existing technologies and will not be described in detail here.

[0058] Furthermore, the nozzle 2 moves vertically in the spraying room 1, and the movement mode of the nozzle 2 is the existing technology and will not be elaborated here. The nozzle 2 arranged on the front of the aluminum single plate 12 has not been changed, and the nozzle 2 has two fixedly installed spray plates 23, and the limiting rod 62 on the side bottom plate 6 is fixedly installed, and the bottom plate 6 on the back of the aluminum single plate 12 is diagonally distributed, which is convenient for adapting to the cross-arranged connecting plate 32, so that when the nozzle 2 moves up or down to the corner position, the effect of increasing the spraying spacing, changing the spraying angle and reducing the spraying amount can be obtained.

[0059] Furthermore, a plurality of springs and telescopic rods are fixedly installed between the protective seat 5 and the nozzle 2, a rod sliding on the base plate 6 is provided on the docking seat 61, and a spring arranged in a ring on the outside of the rod is fixedly installed between the docking seat 61 and the base plate 6, and the spring deformation coefficient on the protective seat 5 is greater than the spring deformation coefficient on the docking seat 61.

[0060] By moving the nozzle 2 up or down to the corner of the back side of the aluminum panel 12, the end of the docking seat 61 slides on the first inclined surface 51. At this time, the spring on the protective seat 5 is not deformed, and the protective seat 5 cooperates with the nozzle 2 to move away from the back side of the aluminum panel 12, thereby reducing the paint liquid sprayed onto the corner of the back side of the aluminum panel 12.

[0061] Secondly, when the nozzle 2 continues to move vertically, the docking seat 61 is embedded in the base plate 6, and the third inclined surface 611 actively resists the sliding of the end of the limit rod 62, so that the limit rod 62 is squeezed and moves closer to the back of the aluminum single plate 12 until the rounded end of the limit rod 62 abuts against the corner, reducing the contact area with the corner, and also cooperating with the limit rod 62 on the front of the aluminum single plate 12 to realize the clamping function, avoiding the shaking of the aluminum single plate 12 and increasing the spraying stability. When the nozzle 2 continues to move downward, the traction plate 34 is sent to the travel direction of the drive plate 621, which is convenient for the limit rod 62 to drive the movable frame 3 to slide, and has a more efficient driving method.

[0062] As an embodiment further provided by the present invention, it also includes a protrusion 231 arranged on the liquid spraying plate 23 , and a protrusion 31 that abuts against the protrusion 231 is arranged at the end of the movable frame 3 .

[0063] During the movement of the limiting rod 62, the convex strip 31 at the end of the movable frame 3 is pulled out gradually from the end of the nozzle 2, so that the convex strip 31 squeezes the convex block 231 to prompt the spray plate 23 to rotate, so that the upper or lower spray plate 23 can be sprayed toward the inner side of the corner of the position, which can make the paint liquid spray more accurately and reduce unnecessary waste of paint liquid.

[0064] As another embodiment further provided by the present invention, it also includes an air passage 22 opened in the nozzle 2, and a nozzle 24 is hingedly provided at the end of the air passage 22.

[0065] Specifically, the air channel 22 uses an air pump and a pipeline (the gas injection and pipeline installation method are existing technologies and are not described here in detail), and a notch is opened at the end of the nozzle 2 for the nozzle 24 to deflect, thereby increasing the range of movement.

[0066] When the paint liquid is sprayed on the aluminum single plate 12, the airflow sprayed from the air nozzle 24 can quickly blow the paint liquid, thereby increasing the adhesion effect of the paint liquid and reducing the occurrence of the paint liquid dripping phenomenon.

[0067] As another embodiment further provided by the present invention, a triggering piece 232 is fixedly mounted on the protrusion 231, and a contacting piece 242 that hooks and pulls with the triggering piece 232 is fixedly mounted on the spray head 24, so that the spray head 24 and the spray plate 23 move synchronously.

[0068] Specifically, a convex piece 233 is fixedly installed at the end of the trigger piece 232, and the two are combined to form a convex shape. The upper and lower end faces of the nozzle head 24 are hinged flaps 241, and the two flaps 241 are arranged in parallel in the default state. The triggered piece 242 is fixedly installed on the plates on both sides of the nozzle head 24, so that the flaps 241 can be located on the nozzle head 24 and move independently, so as to increase the diversity of the airflow discharged by the nozzle head 24.

[0069] During the deflection of the liquid spray plate 23, the arc-shaped end of the trigger plate 232 actively moves the contacted plate 242, and during the moving and traction process, the nozzle head 24 is forced to rotate, so that the airflow direction changes synchronously with the liquid spraying direction, so that when the paint liquid is sprayed to the inside of the corner, the airflow also dries the inside of the corner, and the contacted plate 242 is in the moving direction of the trigger plate 232. Therefore, the contacted plate 242 on the other side of the nozzle head 24 will not interfere with the other liquid spray plate 23, so that when the nozzle head 2 switches the spraying position up and down, the inside of the corner can be processed by the airflow.

[0070] Secondly, when the protrusion 233 reaches the position of the flap 241, the continuously deflected nozzle 24 causes the protrusion 233 to contact the flap 241 and rotate inward, so that the nozzle 24 port is reduced, which is used to speed up the gas flow rate and improve the blowing efficiency of the paint liquid.

[0071] As another embodiment further provided by the present invention, it also includes a knob 4 threadedly connected to the nozzle 2 and an elastic frame 41 installed in the liquid channel 21, a plurality of plugs 42 are arranged in an array on the elastic frame 41, and the push plate 33 is located between the elastic frame 41 and the plugs 42.

[0072] Specifically, the knob 4 with rubber damping extends from the upper and lower surfaces of the nozzle 2, which is easy to rotate manually, and a rubber seal is provided in the environment around the knob 4 to reduce the leakage of paint liquid from the knob 4.

[0073] Furthermore, the elastic frame 41 is specifically an elastic metal sheet, and its thickness is smaller than the width of the liquid channel 21 , so that whether the elastic frame 41 moves or not does not affect the paint liquid transportation, and it is convenient for multiple plugs 42 to block the liquid channel 21 .

[0074] Furthermore, a liquid hole 211 is connected between the liquid channel 21 and the liquid spray plate 23, and the port connecting the liquid hole 211 and the liquid channel 21 is enlarged, the purpose of which is to be compatible with the plug 42, so that the paint liquid is significantly blocked and the quantitative spraying of the paint liquid is guaranteed.

[0075] Furthermore, the plug 42 has a long rod that passes through the push plate 33, and the plug 42 is mushroom-shaped, so that the push plate 33 pushes against the inner side of the mushroom-shaped umbrella cover, thereby pushing multiple plugs 42 to perform sealing work, and the width of the push plate 33 is also smaller than the width of the liquid channel 21, so that the paint liquid is located in the liquid channel 21. The transportation is more stable.

[0076] By turning the knob 4 to simultaneously push the end of the knob against the apex angles of the two elastic frames 41, the obtuse angle on the triangular elastic frame 41 is increased again, so that the two hypotenuses of the triangle block the liquid holes 211 on both sides of the nozzle 2 in turn, thereby controlling the spraying range of the spray plate 23 and enabling the spray plate 23 to adapt to aluminum panels 12 of different widths, thereby increasing the work efficiency of the production line of the spray room 1.

[0077] Secondly, for example, the movable frame 3 below causes the push plate 33 thereon to push all the plugs 42 in the upper liquid channel 21 to move, so that the liquid holes 211 of the upper liquid spray plate 23 are plugged, thereby closing the undeflected liquid spray plate 23, thereby reducing the amount of paint sprayed, so that the amount required for spraying the edges and corners is sufficient, thereby improving the spraying effect on the edges and corners.

[0078] As another embodiment further provided by the present invention, the protective seat 5 is provided with a second inclined surface 52 , and the knob 4 is provided with a recess that contacts and cooperates with the second inclined surface 52 , so that the knob 4 synchronously pushes the two elastic frames 41 to block the liquid channel 21 .

[0079] Specifically, the second bevel 52 faces the end face of the nozzle 2, and a notch is provided on the end face of the nozzle 2. A rubber membrane is fixedly installed in the notch so that the second bevel 52 contacts the rubber membrane and is inserted into the notch, thereby achieving sealing and enabling the second bevel 52 to fit into the recess on the knob 4.

[0080] After the nozzle 2 moves up or down to prompt the docking seat 61 and the limit rod 62 to complete the movement, the nozzle 2 moves down again to compress the spring on the protective seat 5, so that the second inclined surface 52 is actively embedded in the depression on the knob 4, so that the knob 4 is resisted and continues to be screwed in, so that the knob 4 is driven to push the two elastic frames 41 to deform again until all the plugs 42 on the two elastic frames 41 block the two liquid channels 21, so that when the hanger 11 switches to the next aluminum panel 12, the nozzle 2 can stop spraying, thereby avoiding the situation where the paint liquid is repeated above or below the aluminum panel 12, thereby ensuring that the paint surface thickness on the painted aluminum panel 12 is uniform.

[0081] As another embodiment further provided by the present invention, it also includes:

[0082] A through cavity 36 is provided on the nozzle 2, and a storage cavity 35 opened and closed by the connecting plate 32 is provided in the through cavity 36;

[0083] The storage cavity 35 and the liquid channel 21 are connected, and an air hole 221 connected to the through cavity 36 is opened in the air channel 22, and a blocking block 321 for opening and closing the air hole 221 is fixedly installed on the connecting plate 32.

[0084] Specifically, the block 321 moves in the through cavity 36, and uses the side wall of the block 321 to block the air hole 221. A vent sheet 351 is hingedly provided between the storage cavity 35 and the liquid channel 21, and a rubber sleeve is provided on the vent sheet 351 to provide sealing.

[0085] Taking the traction and sliding of the lower movable frame 3 as an example, the connecting plate 32 presses the gas in the storage chamber 35 into the upper liquid channel 21, so that the paint liquid at the position where the liquid channel 21 is blocked by the plug 42 can be away from the liquid hole 211, so as to reduce the penetration and accumulation of the paint liquid at the liquid hole 211, and along with the movement of the block 321, the air hole 221 is opened to allow the air flow to enter the through cavity 36 and be discharged, so that the air flow discharged from the through cavity 36 can blow to the position of the docking seat 61, reduce the problem of the trigger sensitivity being affected by the adhesion of the paint liquid on the docking seat 61, and increase the stability of the nozzle 2 when switching the upper and lower positions.

[0086] As another embodiment further provided by the present invention, a vent plate 361 is hingedly provided at the end of the through cavity 36, a plug hole is provided on the blocking block 321, and the storage cavity 35 is connected to the through cavity 36, so that the rotation angle of the vent plate 361 is adjustable.

[0087] Specifically, a valve plate is hingedly provided in the plug hole opened on the block 321, and the valve plate is only opened toward the storage chamber 35. The pressure pumped in from the liquid channel 21 is greater than the pressure pumped in from the plug hole, so that the gas-liquid mixture in the storage chamber 35 can more easily enter the through cavity 36, thereby realizing the function of discharging the paint liquid. The exhaust plate 361 closes the port of the through cavity 36 by default.

[0088] Taking the lower movable frame 3 being pulled and sliding as an example, the airflow entering the through cavity 36 actively opens the exhaust plate 361, so that the exhaust plate 361 has the maximum deflection angle, so that the airflow can all blow toward the docking seat 61. When the movable frame 3 is retracted and slid, the storage cavity 35 is sucked by the connecting plate 32 to form a negative pressure, which is used to pump the increased pressure in the upper liquid channel 21, so that the accumulated paint liquid can enter the storage cavity 35, reducing the situation where the viscosity of the paint liquid transported in the liquid channel 21 is too high. At the same time, the through cavity 36 is blocked by the block 3 The plug hole on 21 also replenishes gas into the storage chamber 35, so that the opened plug hole can send the paint liquid pumped into the storage chamber 35 into the through chamber 36, and at this time the through chamber 36 is reset by the block 321 to close the air hole 221, so that the pressure in the through chamber 36 is not enough to fully open the exhaust plate 361, so that the deflection angle of the exhaust plate 361 is minimized, and the spraying angle of the gas-liquid mixture from the through chamber 36 is changed to keep it away from the docking seat 61, which greatly reduces the problem of paint liquid adhesion and increases the safety of equipment operation.

[0089] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A self-cleaning aluminum veneer, characterized in that: An aluminum single plate (12) having a wear-resistant coating layer sprayed on its surface, wherein the spraying method of the wear-resistant coating layer comprises: S1, conveying the paint liquid to the spray head (2) in the spray room (1) through the pipeline, so that the spray head (2) conveys the paint liquid added with the anti-ultraviolet agent and the antioxidant to the two spray plates (23) hinged at the ends of the spray head (2) through the two liquid channels (21) therein, and then sprays the paint liquid onto the surface of the aluminum single plate (12) through the spray plates (23); S2, the spray head (2) moves up and down to the corner of the aluminum plate (12), the protective seat (5) outside the spray head (2) is abutted by the docking seat (61) inside the spray booth (1), and the spray head (2) is driven to move away from the aluminum plate (12), so that the paint liquid can be away from the corner of the aluminum plate (12); S3, the docking seat (61) during the movement abuts against the driving plate (621) thereon, and the driving plate (621) pushes against the movable frame (3) sliding in the spray head (2), so that the end of the movable frame (3) abuts against the liquid spraying plate (23) and deflects, so that the port of the liquid spraying plate (23) tilts toward the inside of the corner; S4, during the sliding of the movable frame (3), the push plate (33) installed thereon pushes the plurality of plugs (42) to move, and the plug (42) blocks one of the liquid channels (21) to reduce the amount of the sprayed paint liquid.

2. A self-cleaning aluminum veneer according to claim 1, characterized in that: The wear-resistant covering layer comprises 50-60 parts of fluorocarbon resin, 5-8 parts of pigment, 2-5 parts of leveling agent, thickener, defoamer, 5-10 parts of anti-ultraviolet agent, 5-10 parts of antioxidant, 2-5 parts of methyl ethyl ketone and 2-4 parts of talc.

3. A self-cleaning aluminum veneer preparation device, comprising the self-cleaning aluminum veneer according to any one of claims 1 to 2, and also comprising a spray booth (1) provided with a hanger (11) and an aluminum veneer (12), characterized in that: It also includes connecting plates (32) arranged in a cross-like manner on the two movable frames (3), and the push plates (33) are arranged at the ends of the connecting plates (32); A bottom plate (6) for providing a docking seat (61) with movement is fixedly installed in the spray booth (1), a limiting rod (62) for assembling a driving plate (621) is also arranged on the bottom plate (6), and a third inclined surface (611) is arranged on the docking seat (61) for abutting against the limiting rod (62) and making the limiting rod (62) move closer to the aluminum plate (12); The movable frame (3) is provided with a traction plate (34), the protective seat (5) is provided with a first inclined surface (51) that contacts and cooperates with the docking seat (61), and the driving plate (621) pushes the traction plate (34) to move synchronously.

4. The self-cleaning aluminum single plate preparation device according to claim 3, characterized in that: It also includes a protrusion (231) arranged on the liquid spray plate (23), and the end of the movable frame (3) is provided with a protrusion (31) that contacts and cooperates with the protrusion (231).

5. The self-cleaning aluminum single plate preparation device according to claim 4, characterized in that: It also includes an air channel (22) opened in the spray head (2), and a spray head (24) is hingedly provided at the port of the air channel (22).

6. The self-cleaning aluminum single plate preparation device according to claim 5, characterized in that: A triggering piece (232) is fixedly mounted on the protrusion (231), and a contacting piece (242) that is hooked and pulled with the triggering piece (232) is fixedly mounted on the spray head (24), so that the spray head (24) and the spray head (2) move synchronously.

7. The self-cleaning aluminum single plate preparation device according to claim 5, characterized in that: It also includes a knob (4) threadedly connected to the spray head (2) and an elastic frame (41) installed in the liquid channel (21), a plurality of plugs (42) are arranged in an array on the elastic frame (41), and the push plate (33) is located between the elastic frame (41) and the plugs (42).

8. The self-cleaning aluminum single plate preparation device according to claim 7, characterized in that: The protective seat (5) is provided with a second inclined surface (52), and the knob (4) is provided with a recess that contacts and cooperates with the second inclined surface (52), so that the knob (4) synchronously pushes the two elastic frames (41) to block the liquid channel (21).

9. The self-cleaning aluminum single plate preparation device according to claim 7, characterized in that: Also includes: A through cavity (36) is provided on the nozzle (2), wherein a storage cavity (35) opened and closed by a connecting plate (32) is provided in the through cavity (36); The storage cavity (35) and the liquid channel (21) are connected to each other, the gas channel (22) is provided with a gas hole (221) connected to the through cavity (36), and a blocking block (321) for opening and closing the gas hole (221) is fixedly mounted on the connecting plate (32).

10. The self-cleaning aluminum single plate preparation device according to claim 9, characterized in that: The through cavity (36) port is hingedly provided with an exhaust plate (361), the blocking block (321) is provided with a plug hole, and the storage cavity (35) is connected to the through cavity (36), so that the rotation angle of the exhaust plate (361) is adjustable.

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