Aluminum alloy surface powder spraying device

Abstract

The invention relates to the technical field of powder spraying, and discloses an aluminum alloy surface powder spraying device which comprises conveying equipment, a chain plate type conveying belt is adopted for the conveying equipment, a plurality of sets of connecting bases are arranged on the outer side of the conveying equipment at equal intervals, and one end of each connecting base is fixedly connected with the outer wall of a chain plate of the conveying equipment; a bidirectional lead screw electric sliding table is fixedly connected to the other end of the connecting base, a conveying and spraying assembly is installed on the surfaces of two sliding blocks of the bidirectional lead screw electric sliding table, a sliding groove is formed in the surface of the support, the outer wall of a sliding piece is slidably connected with the inner wall of the sliding groove, and an aluminum alloy plate is arranged between a fixed clamping plate and a movable clamping plate. The spraying chamber is located on the moving track of the aluminum alloy plate. The fixed clamping plate and the movable clamping plate abut against the corners of the aluminum alloy plate for clamping and fixing, so that the aluminum alloy plate can be conveyed along with conveying equipment, meanwhile, shielding on the surface of the aluminum alloy plate can be reduced, and multi-face spraying operation is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of powder spraying, in particular to a powder spraying device for the surface of an aluminum alloy. Background Art

[0002] Powder spraying is a process of adsorbing powder on the surface of aluminum alloy plate through electrostatic adsorption to form a powdery coating. The aluminum alloy plate is then baked at high temperature to level and solidify, and the final protective coating is solidified on the surface of the aluminum alloy plate. The spraying effect of powder spraying is superior to that of painting process in terms of mechanical strength, adhesion, corrosion resistance, and aging resistance.

[0003] When spraying aluminum alloy, the aluminum alloy plate is usually suspended by a hook, which is a vertical up and down spraying process. The spraying machine moves up and down to spray powder on the surface of the aluminum alloy plate. The setting of the hook is to reduce the obstruction of the hook to the powder, but there needs to be a position on the aluminum alloy plate that can be hooked by the hook, such as a non-through hole or a through hole, and the surface of some plates is flat and smooth without any holes. For this reason, there is a horizontal spraying process, that is, the plate is placed on a horizontal conveying equipment, and the spraying machine is located above the plate. The powder falls on the surface of the plate, but it is limited to powder spraying on one side of the plate. If both sides of the plate need to be sprayed, it is necessary to perform powder spraying and high-temperature curing on the second side after the first side of the plate is high-temperature cured. The process is cumbersome and inefficient. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an aluminum alloy surface powder spraying device to solve the problem of low double-sided spraying efficiency of aluminum alloy plates.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an aluminum alloy surface powder spraying device, comprising a conveying device, the conveying device adopts a chain plate conveyor belt, a plurality of groups of connecting seats are equidistantly arranged on the outside of the conveying device, one end of the connecting seat is fixedly connected to the outer wall of the chain plate of the conveying device, the other end of the connecting seat is fixedly connected to a bidirectional screw electric slide, and the two slider surfaces of the bidirectional screw electric slide are installed with a conveying spraying component, the conveying spraying component includes two brackets and a spraying chamber, one end of the bracket is fixedly connected to the outer wall of the slider of the bidirectional screw electric slide, the outer wall of the bracket is installed with an inclined fixed card plate and a movable card plate, one end of the fixed card plate is fixedly connected to the outer wall of the bracket, and one end of the movable card plate is fixedly connected to a sliding member, a slide groove is opened on the surface of the bracket, the outer wall of the sliding member is slidably connected to the inner wall of the slide groove, an aluminum alloy plate is arranged between the fixed card plate and the movable card plate, and the spraying chamber is located on the moving track of the aluminum alloy plate.

[0006] Preferably, each group of the connecting seats is provided with two, and the two connecting seats are symmetrically distributed along the horizontal center line of the conveying equipment.

[0007] Preferably, the inner wall of the slide groove is rotatably connected with a torsion spring shaft 1, one end of the torsion spring shaft 1 passes through the bracket and extends to the outside, the end of the torsion spring shaft 1 located outside the slide groove is fixedly connected to a limiting plate, and limiting column 1 and limiting column 2 are respectively arranged on both sides of the limiting plate, one end of the limiting column 1 and the limiting column 2 are fixedly connected to the outer wall of the bracket, and the outer wall of the torsion spring shaft 1 is fixedly connected with a protrusion layer.

[0008] Preferably, an outer wall of the sliding member is fixedly connected with an extrusion frame, and a frame of the bidirectional screw electric slide is made of ferromagnetic material.

[0009] Preferably, the spray chamber includes a lower chamber, the inner wall of the lower chamber is fixedly connected to a damping slide rail, the damping slide rail is slidably connected to an upper chamber, the upper inner wall of the upper chamber is fixedly connected to a magnetic block, and the upper inner wall of the upper chamber is fixedly connected to a limiting layer.

[0010] Preferably, a driver is fixedly connected to the center of the inner bottom wall of the lower chamber, a lifting screw is fixedly connected to the driving end of the driver, a U-shaped connecting frame is threadedly connected to the outer wall of the lifting screw, sliding frames are respectively fixedly connected to the two ends of the connecting frame, the outer wall of the sliding frame is slidably connected to the inner wall of the upper chamber, a spray pipe is fixedly connected to the side wall of the sliding frame, a plurality of nozzles are fixedly provided on the outer wall of the spray pipe, one end of the spray pipe is connected to an air pump through a pipeline, an air inlet end of the air pump is connected to a powder storage device through a pipeline, and the powder storage device has a built-in electrostatic generator.

[0011] Preferably, a plurality of collecting ends are fixedly provided on the bottom wall of the lower chamber, a negative pressure fan is fixedly provided on the inner wall of the collecting end, a conveying pipe is fixedly provided on one end of the collecting end, and a powder filter bag is fixedly provided on the other end of the conveying pipe.

[0012] Preferably, a drying component is installed under the conveying device, and the drying component includes a U-shaped shell and an extrusion rod. The top end of the shell is fixedly installed on the lower surface of the frame of the conveying device, and the inner bottom wall of the shell is fixedly connected with two groups of thermal insulation layers, each group of the thermal insulation layers is set to two, and a drying chamber is provided between the two thermal insulation layers. High-temperature baking equipment is respectively fixedly connected to the opposite sides of the two thermal insulation layers, and the top end of the extrusion rod is fixedly installed on the bottom end of the bracket.

[0013] Preferably, two U-shaped outer frames are installed on opposite sides of the two insulation layers, the outer side walls of the outer frames are fixedly connected to the inner side walls of the insulation layers, and the two sides of the outer frames are rotatably connected with partitions through torsion spring shafts, and the bottom ends of the partitions are embedded with spring telescopic limit rods.

[0014] Preferably, the lower side wall of the outer frame is fixedly connected to a base, the upper surface of the base is fixedly connected to a plurality of spring telescopic support rods, the top of the spring telescopic support rods is fixedly connected to a top seat, the upper surface of the top seat is provided with two slots, the slots are located on the moving trajectory of the spring telescopic limit rods, the upper surface of the top seat is fixedly connected to an extrusion protrusion, a limiting protrusion is installed above the top seat, and the outer wall of the limiting protrusion is fixedly connected to the lower side wall of the outer frame.

[0015] Working principle: When in use, the aluminum alloy plate can be clamped, conveyed and sprayed through the conveying spraying components and the conveying equipment. After the spraying is completed, the aluminum alloy plate is baked and leveled by the drying component at high temperature to solidify the powder on the surface of the aluminum alloy plate to form a final protective coating.

[0016] When conveying the aluminum alloy plate, the aluminum alloy plate is placed vertically between two sets of fixed pallets and a movable pallet, and the bidirectional screw electric slide is operated to move the two sets of fixed pallets and the movable pallet toward the side of the aluminum alloy plate until the fixed pallet and the movable pallet are clamped against the corners of the aluminum alloy plate, thereby clamping and fixing the aluminum alloy plate, so that the aluminum alloy plate can be conveyed with the conveying equipment, and by fixing it against the corners of the aluminum alloy plate, the obstruction of the surface of the aluminum alloy plate can be minimized while maintaining stable clamping, which helps to increase the spraying range and quality of powder on the surface of the aluminum alloy plate.

[0017] Before the conveying equipment moves the aluminum alloy plate to be sprayed to the spray chamber, the upper chamber and the connecting frame are both stored inside the lower chamber to avoid interference with the movement of the aluminum alloy plate. When the aluminum alloy plate moves to the top of the spray chamber, the driver is operated, and the driver drives the lifting screw to rotate, and the lifting screw drives the connecting frame and the sliding frame to move upward. When the sliding frame moves up and against the limiting layer, it will push the upper chamber to move upward until the magnetic block against and adsorbs the frame of the two-way lead screw electric slide, so that the upper chamber is expanded and adsorbed and fixed, so that the sprayed powder can be shielded, which helps to reduce the pollution and waste caused by powder escape. Then the driver reverses and drives the screw to rotate, and the rotation of the screw drives the sliding frame to descend, and the powder is drawn into the spray pipe by the air pump and sprayed out by the nozzle. The descent of the sliding frame drives the spray pipe to move from top to bottom to spray the surface of the aluminum alloy plate, thereby improving processing efficiency.

[0018] After spraying is completed, leave some time to wait for the dust to settle, then turn on the negative pressure fan to extract the dust-containing gas inside the upper chamber and discharge it into the powder filter bag for collection, so as to facilitate the recycling of excess powder and reduce waste. Then run the driver again to make the connecting frame slide downward to the inside of the lower chamber. When the sliding frame slides to the bottom of the upper chamber, it will apply a downward pulling force to the upper chamber, thereby driving the upper chamber to slide downward and automatically stored in the lower chamber, so that the aluminum alloy plate can be transported out of the spray room. The dried aluminum alloy plate is transported to the top of the conveying equipment to wait for cooling. After cooling, the aluminum alloy plate can be removed.

[0019] The aluminum alloy plate sprayed with powder is transported to the interior of the drying chamber by a conveying device, and the surface powder of the aluminum alloy plate is heated and solidified by a high-temperature baking device. The partition fits the outer frame through one end of the torsion spring of the torsion spring shaft 2, thereby closing the outer frame, and can push the partition to rotate open when the bracket passes through, so that the aluminum alloy plate can enter the drying chamber, and then close again after the aluminum alloy plate passes through. The cooperation of the insulation layer, the partition and the outer frame helps to reduce the loss of heat in the drying chamber.

[0020] The present invention provides a powder spraying device for aluminum alloy surface, which has the following beneficial effects:

[0021] 1. The present invention clamps and fixes the corners of the aluminum alloy plate by means of a fixed clamping plate and a movable clamping plate, so that the aluminum alloy plate can be transported by a conveying device while reducing the obstruction of the surface of the aluminum alloy plate, thereby realizing multi-faceted spraying operations.

[0022] 2. The present invention helps to vertically place the aluminum alloy plate through the limiting plate, so that the powder can be sprayed on the surface of the aluminum alloy plate relatively evenly during spraying, and the stability during clamping is improved.

[0023] 3. The present invention can intercept the scattered dust through the upper chamber, and can filter and collect the dust in conjunction with the negative pressure fan and the dust filter bag, thereby reducing the waste of dust.

[0024] 4. The present invention can heat and cure the aluminum alloy plate through the drying component to ensure the uniformity of powder curing, and through the cooperation of the partition and the heat insulation layer, it helps to reduce the heat loss in the drying chamber when the aluminum alloy plate enters and exits. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A perspective view of the present invention;

[0026] Figure 2 It is a schematic diagram of the structure of the transmission equipment of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the bracket and the aluminum alloy plate of the present invention;

[0028] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0029] Figure 5 It is a cross-sectional schematic diagram of the upper chamber and the lower chamber of the present invention;

[0030] Figure 6 It is a schematic diagram of the spray pipe structure of the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the drying component of the present invention;

[0032] Figure 8 It is a partial cross-sectional schematic diagram of the shell and the heat insulation layer of the present invention;

[0033] Fig. 9 It is a schematic diagram of the top seat structure of the present invention;

[0034] Fig.10 It is a schematic diagram of the base structure of the present invention.

[0035] Among them, 1. conveying equipment; 2. connecting seat; 3. bidirectional screw electric slide; 4. conveying spraying assembly; 401. bracket; 402. spraying room; 403. fixed card plate; 404. movable card plate; 405. sliding part; 406. torsion spring shaft 1; 407. limit plate; 408. limit column 1; 409. limit column 2; 410. raised layer; 411. extrusion frame; 40201. lower chamber; 40202. upper chamber; 40203. magnetic block; 40204. limit layer; 40205. driver ; 40206, lifting screw; 40207, connecting frame; 40208, sliding frame; 40209, spray pipe; 40210, collecting end; 5, aluminum alloy plate; 6, drying component; 601, shell; 602, thermal insulation layer; 603, high-temperature baking equipment; 604, outer frame; 605, partition; 606, spring telescopic limit rod; 607, top seat; 608, slot; 609, extrusion protrusion; 610, limit protrusion; 611, base; 612, spring telescopic support rod; 613, extrusion rod. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Please refer to the attached Figure 1 -Attached Figure 3The embodiment of the present invention provides an aluminum alloy surface powder spraying device, including a conveying device 1, the conveying device 1 adopts a chain plate conveyor belt, and a plurality of groups of connecting seats 2 are equidistantly arranged on the outside of the conveying device 1, one end of the connecting seat 2 is fixedly connected to the outer wall of the chain plate of the conveying device 1, and the other end of the connecting seat 2 is fixedly connected to a bidirectional screw electric slide 3, and the surfaces of the two sliders of the bidirectional screw electric slide 3 are equipped with a conveying spraying component 4, and the conveying spraying component 4 includes two brackets 401 and a spraying chamber 402, one end of the bracket 401 is fixedly connected to the outer wall of the slider of the bidirectional screw electric slide 3, and the outer wall of the bracket 401 is equipped with an inclined A fixed card plate 403 and a movable card plate 404 are set, one end of the fixed card plate 403 is fixedly connected to the outer wall of the bracket 401, one end of the movable card plate 404 is fixedly connected with a sliding member 405, a sliding groove is provided on the surface of the bracket 401, the outer wall of the sliding member 405 is slidably connected to the inner wall of the sliding groove, an aluminum alloy plate 5 is set between the fixed card plate 403 and the movable card plate 404, the spray chamber 402 is located on the moving track of the aluminum alloy plate 5, each group of connecting seats 2 is provided with two, and the two connecting seats 2 are symmetrically distributed along the horizontal center line of the conveying equipment 1, and workers can stand on both sides of the conveying equipment 1 to place or remove the aluminum alloy plate 5.

[0038] Specifically, the connecting seat 2 is used to connect the bidirectional screw electric slide 3 and the conveying equipment 1. The bidirectional screw electric slide 3 is used to drive the two brackets 401 to move relative to or away from each other. When the two brackets 401 move relative to each other, the two fixed clamping plates 403 are pressed against the two corners at one end of the aluminum alloy plate 5. When the movable clamping plate 404 is pressed against the two corners at the other end of the aluminum alloy plate 5, the sliding member 405 will be driven to slide inside the slide groove until the sliding of the sliding member 405 is blocked. The four corners of the aluminum alloy plate 5 are clamped and fixed by the fixed clamping plate 403 and the movable clamping plate 404. It is suitable for the clamping requirements of aluminum alloy plates 5 of different sizes, and can greatly reduce the obstruction of the surface of the aluminum alloy plate 5 and improve the coverage rate of powder. The spray chamber 402 is used to perform powder spraying operations on the outer surface of the aluminum alloy plate 5.

[0039] Please refer to the attached Figure 4 The inner wall of the slide is rotatably connected with a torsion spring shaft 406, one end of which passes through the bracket 401 and extends to the outside, and one end of the torsion spring shaft 406 located outside the slide is fixedly connected to a limiting plate 407, and limiting columns 408 and limiting columns 409 are respectively arranged on both sides of the limiting plate 407, and one end of the limiting columns 408 and 409 are fixedly connected to the outer wall of the bracket 401, the outer wall of the torsion spring shaft 406 is fixedly connected with a protrusion layer 410, and the outer wall of the sliding member 405 is fixedly connected with an extrusion frame 411.

[0040] Specifically, the torsion spring shaft 1 406 is used to apply a torsion force to the limit plate 407 so that the outer wall of the limit plate 407 is pressed against the limit column 1 408 to remain horizontal, and then when the aluminum alloy plate 5 is placed, the aluminum alloy plate 5 can be attached to the limit plate 407 to remain vertical, thereby assisting the placement of the aluminum alloy plate 5, helping to keep the aluminum alloy plate 5 clamped in a vertical state, so that the powder can be sprayed relatively evenly on the surface of the aluminum alloy plate 5, and helping to improve the stability during clamping. When the movable clamping plate 404 presses against the corner of the aluminum alloy plate 5 to push the sliding member 405 to slide, the sliding of the sliding member 405 drives the extrusion frame 411 to move, and the sliding of the extrusion frame 411 will push the raised layer 410, thereby driving the torsion spring shaft 1 406 to rotate, so that the limit plate 407 rotates until it presses against the limit column 2 409, thereby staggering the limit plate 407 and the aluminum alloy plate 5, avoiding the limit plate 407 from blocking the spraying operation of the aluminum alloy plate 5.

[0041] Please refer to the attached Figure 5 -Attached Figure 6 The frame of the bidirectional screw electric slide 3 is made of ferromagnetic material, the spray chamber 402 includes a lower chamber 40201, the inner wall of the lower chamber 40201 is fixedly connected with a damping slide rail, the damping slide rail is slidably connected with the upper chamber 40202, the upper inner wall of the upper chamber 40202 is fixedly connected with a magnetic block 40203, the upper inner wall of the upper chamber 40202 is fixedly connected with a limited position layer 40204, the center of the inner bottom wall of the lower chamber 40201 is fixedly connected with a driver 40205, the driving end of the driver 40205 is fixedly connected with a lifting screw 40206, the lifting screw 40206 and the connecting frame 4 0207 runs through the upper chamber 40202, the outer wall of the lifting screw 40206 is threadedly connected with a U-shaped connecting frame 40207, the two ends of the connecting frame 40207 are respectively fixedly connected with sliding frames 40208, the outer wall of the sliding frame 40208 is slidably connected to the inner wall of the upper chamber 40202, the side wall of the sliding frame 40208 is fixedly connected with a spray pipe 40209, the outer wall of the spray pipe 40209 is fixedly provided with a plurality of nozzles, one end of the spray pipe 40209 is connected with an air pump through a pipeline, the air inlet end of the air pump is connected with a powder storage device through a pipeline, and the powder storage device has a built-in electrostatic generator.

[0042] Specifically, the lower chamber 40201 is fixed on the floor of the workshop, the electrostatic generator is used to charge the dust powder storage device in the powder storage device with static electricity, so as to facilitate the powder coating to be adsorbed on the surface of the aluminum alloy plate 5, the damping slide rail is used to reduce the descending speed when the upper chamber 40202 descends, which helps to avoid a large impact force when the upper chamber 40202 descends, and the driver 40205 is used to drive the lifting screw 40206 to rotate, and the rotation of the lifting screw 40206 is used to drive the connecting frame 40207 to rise and fall, and the connecting frame 40207 rises and falls. It is used to drive the sliding frame 40208 to rise and fall. In the initial state, the connecting frame 40207 and the upper chamber 40202 are lowered and stored in the lower chamber 40201, so that the aluminum alloy plate 5 can be transported into the spray chamber 402. Then the driver 40205 runs to drive the connecting frame 40207 to rise. The rising of the connecting frame 40207 drives the sliding frame 40208 to rise. The rising of the sliding frame 40208 drives the limiting layer 40204 to rise. The rising of the limiting layer 40204 drives the upper chamber 40202 to rise. The upper chamber 40202 rises to the top When the upper chamber 40202 is fixed by adsorption, the lifting screw 40206 is driven by the driver 40205 to move in the reverse direction, so that the connecting frame 40207 descends, and the connecting frame 40207 descends and drives the sliding frame 40208 to descend, and the sliding frame 40208 is lowered. When 8 descends, it drives the spray tube 40209 to move along the aluminum alloy plate 5 from top to bottom. At this time, the dust in the powder storage device is drawn into the spray tube 40209 by the air pump and sprayed out by the nozzle, so that the powder is relatively comprehensively sprayed on the surface of the aluminum alloy plate 5. Finally, the sliding frame 40208 descends again, so that the bottom end of the sliding frame 40208 presses down on the inner bottom wall of the upper chamber 40202, driving the magnetic block 40203 to break the adsorption connection with the lower chamber 40201, so that the upper chamber 40202 can slide down and be stored in the lower chamber 40201.

[0043] Please refer to the attached Figure 6 A plurality of collecting ends 40210 are fixedly provided on the bottom wall of the lower chamber 40201, a negative pressure fan is fixedly provided on the inner wall of the collecting end 40210, a conveying pipe is fixedly provided on one end of the collecting end 40210, a powder filter bag is fixedly provided on the other end of the conveying pipe, and dust filter holes distributed in a matrix may be opened on the upper side wall of the upper chamber 40202, the dust filter holes filter the dust and ensure the air flow inside and outside the upper chamber 40202.

[0044] Specifically, the collecting end 40210 is used to connect the conveying pipe and the negative pressure fan, and the conveying pipe is used to connect the powder filter bag. After the powder spraying is completed, the negative pressure fan is operated, and the negative pressure fan drives the dust-containing gas inside the upper chamber 40202 to enter the interior of the powder filter bag through the collecting end 40210 and the conveying pipe, and the powder is filtered through the powder filter bag to realize the collection of powder, which is convenient for the reuse of powder.

[0045] Please refer to the attached Figure 7 -Attached Figure 8 A drying component 6 is installed below the conveying device 1. The drying component 6 includes a U-shaped shell 601 and an extrusion rod 613. The top of the shell 601 is fixedly installed on the lower surface of the frame of the conveying device 1. Two groups of heat insulation layers 602 are fixedly connected to the inner bottom wall of the shell 601. Each group of heat insulation layers 602 is set to two. A drying chamber is formed between the two heat insulation layers 602. High-temperature baking equipment 603 is fixedly connected to the opposite sides of the two heat insulation layers 602 respectively. The top of the extrusion rod 613 is fixedly installed on the bottom end of the bracket 401. The high-temperature baking equipment 603 adopts a heating plate with a heating resistance wire.

[0046] Specifically, the shell 601 is used to support the insulation layer 602. The drying chamber is located on the moving track of the aluminum alloy plate 5. The aluminum alloy plate 5 is transported to the inside of the drying chamber by the conveying equipment 1. The surface powder of the aluminum alloy plate 5 is heated and solidified by the high temperature generated by the operation of the high-temperature baking equipment 603.

[0047] Please refer to the attached Figure 7 -Attached Figure 8 Two U-shaped outer frames 604 are installed on the opposite side of the two insulation layers 602, the outer wall of the outer frame 604 is fixedly connected to the inner wall of the insulation layer 602, and the two sides of the outer frame 604 are rotatably connected with partitions 605 through torsion spring shafts. The bottom end of the partition 605 is embedded with a spring telescopic limit rod 606. The shell 601, the insulation layer 602, the partition 605 and the outer frame 604 are made of thermal insulation material, and the U-shaped outer frame 604 is respectively located at the front and back sides of the drying chamber.

[0048] Specifically, the partition 605 is pressed against the outer frame 604 by the torsion force of the second torsion spring shaft, so that the two partitions 605 close the outer frame 604, and the loss of heat in the drying chamber is reduced through the cooperation of the partition 605, the outer frame 604, the insulation layer 602 and the shell 601.

[0049] Please refer to the attached Fig. 9 -Attached Fig.10The lower side wall of the outer frame 604 is fixedly connected to a base 611, and the upper surface of the base 611 is fixedly connected to a plurality of spring telescopic support rods 612, and the top of the spring telescopic support rod 612 is fixedly connected to a top seat 607, and the upper surface of the top seat 607 is provided with two slots 608, and the slots 608 are located on the moving track of the spring telescopic limit rod 606, and the upper surface of the top seat 607 is fixedly connected to an extrusion protrusion 609, and a limiting protrusion 610 is installed above the top seat 607, and the outer wall of the limiting protrusion 610 is fixedly connected to the lower side wall of the outer frame 604, and the elastic force of the spring telescopic support rod 612 is greater than that of the spring telescopic limit rod 606.

[0050] Specifically, the bracket 401 on the front side of the moving direction of the aluminum alloy plate 5 is not provided with an extrusion rod 613, and the bracket 401 on the rear side of the moving direction of the aluminum alloy plate 5 is provided with an extrusion rod 613. The base 611 is used to fix the spring telescopic support rod 612. The spring telescopic support rod 612 is used to elastically support the top seat 607, so that the top of the top seat 607 is against the limiting protrusion 610. When the aluminum alloy plate 5 passes through the outer frame 604, the bracket 401 on the front side of the moving direction of the aluminum alloy plate 5 will push the partition 605 to expand and open the outer frame 604, so that the aluminum alloy plate 5 can pass through the outer frame 604 to enter the interior of the drying chamber for drying, or leave the drying chamber through the outer frame 604. When the partition 605 rotates, it drives the spring telescopic limiting rod 606 to rotate to the slot 608, and the spring telescopic limiting rod 606 is expanded and inserted into the slot 608. , thereby fixing the expansion angle of the partition 605 to prevent the partition 605 from rotating and scraping the powder on the surface of the aluminum alloy plate 5 when the aluminum alloy plate 5 passes through. After the aluminum alloy plate 5 passes through, the extrusion rod 613 on the rear side of the moving direction of the aluminum alloy plate 5 will move along the inclined surface of the extrusion protrusion 609 and press down the extrusion protrusion 609. The downward pressure of the extrusion protrusion 609 drives the top seat 607 to slide down. The sliding of the top seat 607 drives the card slot 608 to disengage from the spring telescopic limit rod 606, canceling the restriction on the spring telescopic limit rod 606. After the extrusion rod 613 is disengaged from the extrusion protrusion 609, the spring telescopic support rod 612 lifts the top seat 607 again and pushes the spring telescopic limit rod 606 to contract, so that the partition 605 is rotated again and closed through the torsion of the torsion spring shaft 2, thereby realizing the automatic opening and closing of the partition 605.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder spraying device for an aluminum alloy surface, comprising a conveying device (1), wherein the conveying device (1) adopts a chain plate conveyor belt, and is characterized in that: A plurality of groups of connecting seats (2) are equidistantly arranged on the outside of the conveying device (1), one end of the connecting seat (2) is fixedly connected to the outer wall of the chain plate of the conveying device (1), the other end of the connecting seat (2) is fixedly connected to a bidirectional screw electric slide (3), the two sliding blocks of the bidirectional screw electric slide (3) are mounted with a conveying spraying assembly (4), the conveying spraying assembly (4) comprises two brackets (401) and a spraying chamber (402), one end of the bracket (401) is fixedly connected to the outer wall of the sliding block of the bidirectional screw electric slide (3), the bracket (401) ) is installed with an inclined fixed card plate (403) and a movable card plate (404) on its outer side wall, one end of the fixed card plate (403) is fixedly connected to the outer wall of the bracket (401), one end of the movable card plate (404) is fixedly connected to a sliding member (405), a sliding groove is provided on the surface of the bracket (401), the outer wall of the sliding member (405) is slidably connected to the inner wall of the sliding groove, an aluminum alloy plate (5) is arranged between the fixed card plate (403) and the movable card plate (404), and the spraying chamber (402) is located on the moving track of the aluminum alloy plate (5).

2. The aluminum alloy surface powder spraying device according to claim 1, characterized in that: Each group of the connecting seats (2) is provided with two, and the two connecting seats (2) are symmetrically distributed along the horizontal center line of the conveying device (1).

3. The aluminum alloy surface powder spraying device according to claim 1, characterized in that: The inner wall of the slide groove is rotatably connected to a torsion spring shaft 1 (406), one end of which passes through the bracket (401) and extends to the outside, and one end of the torsion spring shaft 1 (406) located outside the slide groove is fixedly connected to a limiting plate (407), and limiting columns 1 (408) and limiting columns 2 (409) are respectively arranged on both sides of the limiting plate (407), and one end of the limiting columns 1 (408) and the limiting columns 2 (409) are fixedly connected to the outer wall of the bracket (401), and the outer wall of the torsion spring shaft 1 (406) is fixedly connected to a protrusion layer (410).

4. The aluminum alloy surface powder spraying device according to claim 1, characterized in that: The outer wall of the sliding member (405) is fixedly connected to an extrusion frame (411), and the frame of the bidirectional screw electric slide (3) is made of ferromagnetic material.

5. The aluminum alloy surface powder spraying device according to claim 1, characterized in that: The spray chamber (402) comprises a lower chamber (40201), the inner wall of the lower chamber (40201) is fixedly connected to a damping slide rail, the damping slide rail is slidably connected to an upper chamber (40202), the upper inner wall of the upper chamber (40202) is fixedly connected to a magnetic block (40203), and the upper inner wall of the upper chamber (40202) is fixedly connected to a limiting layer (40204).

6. The aluminum alloy surface powder spraying device according to claim 5, characterized in that: A driver (40205) is fixedly connected to the center of the inner bottom wall of the lower chamber (40201), and a lifting screw (40206) is fixedly connected to the driving end of the driver (40205), and a U-shaped connecting frame (40207) is threadedly connected to the outer wall of the lifting screw (40206), and sliding frames (40208) are fixedly connected to both ends of the connecting frame (40207), and the outer wall of the sliding frame (40208) is slidably connected to the inner wall of the upper chamber (40202), and a spray pipe (40209) is fixedly connected to the side wall of the sliding frame (40208), and a plurality of nozzles are fixedly arranged on the outer wall of the spray pipe (40209), and one end of the spray pipe (40209 is connected to an air pump through a pipeline, and the air inlet end of the air pump is connected to a powder storage device through a pipeline, and the powder storage device has an electrostatic generator built in.

7. The aluminum alloy surface powder spraying device according to claim 5, characterized in that: The bottom wall of the lower chamber (40201) is fixedly provided with a plurality of collecting ends (40210), the inner wall of the collecting end (40210) is fixedly provided with a negative pressure fan, one end of the collecting end (40210) is fixedly provided with a conveying pipe, and the other end of the conveying pipe is fixedly provided with a powder filter bag.

8. The aluminum alloy surface powder spraying device according to claim 1, characterized in that: A drying assembly (6) is installed below the conveying device (1), and the drying assembly (6) includes a U-shaped shell (601) and an extrusion rod (613). The top end of the shell (601) is fixedly installed on the lower surface of the frame of the conveying device (1). Two groups of heat insulation layers (602) are fixedly connected to the inner bottom wall of the shell (601). Each group of the heat insulation layers (602) is set to two. A drying chamber is formed between the two heat insulation layers (602). High-temperature baking devices (603) are fixedly connected to the opposite sides of the two heat insulation layers (602). The top end of the extrusion rod (613) is fixedly installed on the bottom end of the bracket (401).

9. The aluminum alloy surface powder spraying device according to claim 8, characterized in that: Two U-shaped outer frames (604) are installed on opposite sides of the two insulation layers (602), and the outer side walls of the outer frames (604) are fixedly connected to the inner side walls of the insulation layers (602). The two sides of the outer frames (604) are rotatably connected to partitions (605) via torsion spring rotating shafts. The bottom ends of the partitions (605) are embedded with spring telescopic limit rods (606).

10. The aluminum alloy surface powder spraying device according to claim 9, characterized in that: The lower side wall of the outer frame (604) is fixedly connected to a base (611), the upper surface of the base (611) is fixedly connected to a plurality of spring telescopic support rods (612), the top of the spring telescopic support rod (612) is fixedly connected to a top seat (607), the upper surface of the top seat (607) is provided with two slots (608), the slots (608) are located on the moving track of the spring telescopic limiting rod (606), the upper surface of the top seat (607) is fixedly connected to an extrusion protrusion (609), a limiting protrusion (610) is installed above the top seat (607), and the outer wall of the limiting protrusion (610) is fixedly connected to the lower side wall of the outer frame (604).

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