A paint spraying device for a fire cabinet and a paint spraying method thereof

Abstract

The application relates to the field of fire-fighting cabinet production and discloses a paint spraying device for a fire-fighting cabinet and a paint spraying method thereof, which effectively solves the problem that paint cannot be sprayed along the outer wall of the fire-fighting cabinet because the spray head is fixedly arranged, and the paint spraying device comprises a base, a top plate arranged above the base, support columns arranged at the top of the base, fixed connection between the support columns and the bottom end of the top plate, a cabinet paint spraying assembly arranged on the top plate, a bottom wall paint coating assembly arranged at the top of the base, the cabinet paint spraying assembly comprising installation hanging plates symmetrically arranged below the top plate, two installation racks arranged below the installation hanging plates, the first paint spraying pipes arranged above the fire-fighting cabinet, paint in the paint box being inclinedly sprayed downwards from the first spray heads to the top wall of the fire-fighting cabinet, the motor being turned on to drive the longitudinal moving plate to move downwards, then the two first paint spraying pipes are driven to move away from each other, the fire-fighting cabinet top wall is conveniently painted, the paint spraying range is expanded, and the paint spraying completeness is improved.

Description

Technical Field

[0001] This invention belongs to the field of fire cabinet manufacturing, specifically a painting device and painting method for fire cabinets. Background Technology

[0002] According to the patent document with authorization announcement number "CN216826845U" and invention title "A Spray Painting Device for Fire Equipment Production", the description states that: the item to be painted is placed on top of the tray, and then the first connecting block is moved by rotating the first rotating rod, which in turn moves the integrated block, which in turn moves the clamping rod and clamping ring, allowing the clamping rod and clamping ring to fit with items of different shapes. This solves the problem that some existing spray painting devices, due to their monotonous structure, cannot clamp and fix objects of different shapes or sizes, causing objects to move or fall during the spraying process due to the impact of the paint spray, resulting in reduced painting effect, wasted paint, and impact on work progress. However, the following defects still exist:

[0003] Because the nozzles are fixed in place, the paint cannot move and spray along the outer wall of the fire cabinet, which can easily lead to incomplete painting of the outer wall of the fire cabinet and poor painting effect. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a spraying device and spraying method for fire cabinets, which effectively solves the problem that the paint cannot be sprayed along the outer wall of the fire cabinet due to the fixed setting of the nozzle.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a spray painting device for a fire cabinet, comprising a base, a top plate above the base, support columns installed at the four corners of the top of the base, the support columns being fixedly connected to the bottom of the top plate, a cabinet spray painting assembly on the top plate, and a bottom wall painting assembly installed at the top of the base.

[0006] The cabinet painting assembly includes symmetrically arranged mounting plates below the top panel. Two mounting brackets are located below the mounting plates, with the mounting plates and brackets perpendicular to each other. The bottom sides of the two mounting plates are fixedly connected to the top of one end of each mounting bracket. The top of the mounting plates is fixedly connected to the output end of a cylinder, which is fixedly mounted on the top of the top panel. Sliding grooves are symmetrically formed on the sides of the two mounting brackets that are close to each other. Two first paint spray pipes are symmetrically arranged between the two mounting brackets. Slider blocks are symmetrically installed at both ends of the first paint spray pipes, slidingly mounted inside the sliding grooves. A pipe connecting unit is installed inside the sliders. A second paint spray pipe is installed at the bottom of the mounting bracket.

[0007] Preferably, the second paint spray pipe is arranged perpendicularly to the first paint spray pipe, and a second nozzle is installed at equal intervals on the side of the two second paint spray pipes that are close to each other. The second nozzles are inclined downwards, and end connecting pipes are symmetrically installed at both ends of the second paint spray pipes. The end connecting pipes are arranged in an L-shape, and the top ends of the two end connecting pipes are connected to the top wall of the two sliding grooves on the mounting bracket at the opposite end.

[0008] Preferably, first nozzles are installed at equal intervals on the sides of the two first paint spray pipes that are close to each other. The first nozzles are inclined downwards. A top connecting pipe is installed at the top of the first paint spray pipe. A material box is installed at the top of the top plate. A pump body is installed inside the material box. The material box has two discharge ports. A discharge hose is installed on each of the two discharge ports. The two discharge hoses are fixedly connected to the top connecting pipes on the two first paint spray pipes respectively.

[0009] Preferably, the top of the slide groove is provided with a guide groove, the top of the mounting frame is provided with a top cylinder at the top center, the top cylinder is provided with side grooves symmetrically on both sides, a longitudinal sliding plate is movably installed inside the top cylinder, side blocks are symmetrically installed on both sides of the longitudinal sliding plate, the side blocks are slidably installed inside the side grooves, a guide block is installed at the top of the slider, the guide block is slidably connected to the guide groove, the side of the two side blocks that are far apart from each other is respectively hinged to one end of the two rotating rods, and the other end of the two rotating rods is respectively hinged to the top of the two guide blocks.

[0010] Preferably, the pipe connection unit includes an inner cavity formed inside the slider, which is connected to the inside of the first paint spray pipe. A fixed outer cylinder is installed inside the inner cavity, and the bottom end of the fixed outer cylinder extends into the inside of the slide groove. A movable inner cylinder is movably installed inside the fixed outer cylinder, and the outer wall of the movable inner cylinder is in close contact with the inner wall of the fixed outer cylinder. A connecting hole is formed on the side of the fixed outer cylinder near the first paint spray pipe. The outer diameter of the movable inner cylinder is equal to the inner diameter of the end connecting pipe, and a top frame is installed at the top of the movable inner cylinder.

[0011] Preferably, the slider has an inner groove located above the fixed outer cylinder. A movable plate is movably installed inside the inner groove. A hanging rod is installed at the bottom end of the movable plate, and the bottom end of the hanging rod extends into the interior of the fixed outer cylinder. The bottom end of the hanging rod is fixedly connected to the top frame. A first spring is installed at the bottom end of the movable plate, and a first magnetic block is installed at the top end of the movable plate. A first electromagnet is installed on the inner top wall of the inner groove. The first electromagnet is connected to an external power source and is magnetically connected to the first magnetic block.

[0012] Preferably, the bottom wall painting assembly includes a collection groove inside the base. Sliding grooves are symmetrically formed on the inner walls of the collection groove on both sides parallel to the mounting frame. Two support plates are movably installed inside the collection groove. The support plates include a first support plate and a second support plate. The two ends of the support plates are slidably installed inside the two sliding grooves. Second springs are installed at the ends of the two support plates on opposite sides. The ends of the second springs away from the support plates are fixedly connected to the inner wall of the end of the sliding grooves. Fixed plates are installed at the top ends of the two support plates on opposite sides. A transverse pushing unit is installed at the bottom end of the first paint spray tube, and a longitudinal pressing unit is installed at the top end of the top plate.

[0013] Preferably, the lateral pushing unit includes lateral cylinders symmetrically installed below the two first paint spray tubes. A first movable block is movably installed inside the lateral cylinder. A push plate is provided on the side of the two lateral cylinders that are far apart from each other. A push rod is provided on the side of the first movable block near the push plate. One end of the push rod is fixedly connected to the push plate. A third spring is installed on the side of the first movable block near the push plate. One end of the third spring is fixedly connected to the inner wall of the side of the lateral cylinder near the push plate. A second magnetic block is installed on the side of the first movable block away from the push plate. A second electromagnet is installed on the side of the lateral cylinder away from the push plate. The second electromagnet is externally powered and is magnetically connected to the second magnetic block. The two lateral cylinders are respectively located above the two support plates.

[0014] Preferably, the longitudinal pressing unit includes two longitudinal cylinders symmetrically installed at the top of the top plate. The two longitudinal cylinders are respectively located above two support plates. A second movable block is movably installed inside the longitudinal cylinder. A pressure rod is installed at the bottom end of the second movable block. The bottom end of the pressure rod extends through to the bottom of the top plate. A pressure plate is installed at the bottom end of the pressure rod. A fourth spring is installed at the bottom end of the second movable block. The bottom end of the fourth spring is fixedly connected to the inner bottom wall of the longitudinal cylinder. A third magnetic block is installed at the top end of the second movable block. A third electromagnet is installed at the top end of the longitudinal cylinder. The third electromagnet is magnetically connected to the third magnetic block. The second electromagnet above the first support plate and the third electromagnet above the second support plate are connected in series. The second electromagnet above the second support plate and the third electromagnet above the first support plate are also connected in series.

[0015] Preferably, a painting method using a paint spraying device for a fire cabinet includes the following painting steps:

[0016] S1. Place the fire cabinet on two support plates, turn on the pump in the material box so that the paint is sprayed from the first nozzle on the first spray pipe toward the top wall of the fire cabinet. At the same time, turn on the motor so that the two first spray pipes move away from each other and spray paint the top wall of the fire cabinet.

[0017] S2. After the top wall of the fire cabinet is painted, the first electromagnet is energized, causing the movable inner cylinder to move downward and enter the end connecting pipe, so that the first paint spray pipe and the second paint spray pipe are connected. The cylinder is opened, so that the two first paint spray pipes and the two second paint spray pipes move downward along the four vertical side walls of the fire cabinet to paint the four vertical side walls of the fire cabinet.

[0018] S3. After painting the four vertical side walls of the fire cabinet, first move the first support plate outward so that it is no longer in contact with half of the bottom wall of the fire cabinet and comes into contact with the paint inside the collection tank. Then, after the first support plate is moved back, move the second support plate outward so that it is no longer in contact with the other half of the bottom wall of the fire cabinet and comes into contact with the paint inside the collection tank. This allows the paint collected inside the collection tank to come into contact with and adhere to the bottom wall of the fire cabinet, making it easier to paint the bottom wall of the fire cabinet.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] (1) In this invention, two first spray pipes are set above the fire cabinet. The pump body in the material box is turned on, so that the paint in the material box enters the first spray pipe and is sprayed out from the first nozzle at an angle to the top wall of the fire cabinet. The motor is turned on, so that the screw rotates. Since the screw is threadedly connected to the longitudinal plate, it drives the longitudinal plate to move downward, thereby pushing the two first spray pipes away from each other, which facilitates the spraying of the top wall of the fire cabinet, expands the spraying range, and improves the completeness of the spraying.

[0021] (2) After the top wall of the fire cabinet is painted, the two first paint pipes and two second paint pipes are arranged in a U-shape. When the first electromagnet is energized, the movable inner cylinder moves downward and inserts into the end connecting pipe, so that the first paint pipe and the second paint pipe are connected. Through the cylinder, the two first paint pipes and the two second paint pipes move downward along the four vertical side walls of the fire cabinet, which facilitates simultaneous painting of the four vertical side walls of the fire cabinet, improves the painting speed, improves the painting efficiency, and improves the painting completeness.

[0022] (3) The invention has a collection trough at the top of the base. The fire cabinet is placed on two support plates. When the top wall and four side walls of the fire cabinet are painted, the excess paint will flow along the four side walls into the collection trough, which facilitates the collection and centralized treatment of excess paint. At the same time, it facilitates the painting of the bottom wall of the fire cabinet, expands the painting range, and improves the completeness of the painting.

[0023] (4) After the excess paint enters the collection tank, the invention first moves the first support plate outward so that the first support plate is separated from half of the bottom wall of the fire cabinet and comes into contact with the paint inside the collection tank. Then, after the first support plate moves back, the second support plate is moved outward so that the second support plate is separated from the other half of the bottom wall of the fire cabinet and comes into contact with the paint inside the collection tank. This facilitates the contact between the bottom wall of the fire cabinet and the paint, allowing the paint to adhere to the bottom wall of the fire cabinet, making it easier to paint the bottom wall of the fire cabinet and expanding the painting area.

[0024] (5) When the first support plate moves outward, the third electromagnet above the second support plate is energized, so that the pressure plate presses the fire cabinet firmly and fixes it on the second support plate. When the second support plate moves outward, the third electromagnet above the first support plate is energized, so that the pressure plate presses the fire cabinet firmly and fixes it on the first support plate, thereby improving the stability of the fire cabinet when the bottom wall is painted and preventing the fire cabinet from tipping over. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0026] In the attached diagram:

[0027] Figure 1 This is a schematic diagram of the spray painting device for the fire cabinet of the present invention;

[0028] Figure 2 This is a schematic diagram of the cabinet painting assembly structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the mounting frame structure of the present invention;

[0030] Figure 4 This is a schematic diagram of the first paint spray tube structure of the present invention;

[0031] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0032] Figure 6 This is a schematic diagram of the base structure of the present invention;

[0033] Figure 7 This is a schematic diagram of the lateral pushing unit structure of the present invention;

[0034] Figure 8 This is a schematic diagram of the longitudinal clamping unit structure of the present invention;

[0035] In the diagram: 1. Base; 2. Top plate; 3. Support column; 4. Material box; 5. Cabinet painting assembly; 501. Mounting plate; 502. Cylinder; 503. Mounting bracket; 504. Slide rail; 505. First paint spray pipe; 506. Top connecting pipe; 507. First nozzle; 508. Slider; 509. Second paint spray pipe; 510. Second nozzle; 511. End connecting pipe; 512. Guide groove; 513. Guide block; 514. Top cylinder; 515. Side groove; 516. Longitudinal moving plate; 517. Side block; 518. Rotating rod; 519. Screw; 520. Motor; 521. Pipe connection unit; 5211. Inner cavity; 5212. Fixed outer cylinder; 5213. Connecting hole; 5214. Movable inner cylinder; 5215. Top frame; 5216. Inner groove; 5217. Moving plate 5218. Hanging rod; 5219. First spring; 52110. First magnet; 52111. First electromagnet; 6. Bottom wall painting assembly; 601. Collection trough; 602. Sliding trough; 603. Support plate; 603a. First support plate; 603b. Second support plate; 604. Second spring; 605. Fixing plate; 606. Lateral pushing unit; 6061. Lateral cylinder; 6062. First movable block; 6063. Push rod; 6064. Push plate; 6065. Third spring; 6066. Second magnet; 6067. Second electromagnet; 607. Longitudinal pressing unit; 6071. Longitudinal cylinder; 6072. Second movable block; 6073. Pressure rod; 6074. Pressure plate; 6075. Fourth spring; 6076. Third magnet; 6077. Third electromagnet. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] Example 1, by Figures 1-8 The present invention includes a base 1, a top plate 2 on the top of the base 1, support columns 3 installed at the four corners of the top of the base 1, the support columns 3 being fixedly connected to the bottom of the top plate 2, a cabinet painting assembly 5 on the top plate 2, and a bottom wall painting assembly 6 installed at the top of the base 1.

[0038] The cabinet painting assembly 5 includes mounting plates 501 symmetrically arranged below the top plate 2. Two mounting brackets 503 are located below the mounting plates 501. The mounting plates 501 and mounting brackets 503 are perpendicularly arranged. The bottom ends of the two mounting plates 501 are fixedly connected to the top of one corresponding end of each mounting bracket 503. The top end of the mounting plates 501 is fixedly connected to the output end of a cylinder 502, which is fixedly mounted on the top of the top plate 2. Sliding grooves 504 are symmetrically formed on the sides of the two mounting brackets 503 that are close to each other. Two first paint spray pipes 505 are symmetrically arranged between the two mounting brackets 503. Sliding blocks 508 are symmetrically installed at both ends of the first paint spray pipes 505, and the sliding blocks 508 are slidably installed inside the sliding grooves 504. The slider 508 has a pipe connecting unit 521 installed inside. A second paint spray pipe 509 is installed at the bottom of the mounting bracket 503. The second paint spray pipe 509 is perpendicular to the first paint spray pipe 505. Second nozzles 510 are equidistantly installed on the sides of the two second paint spray pipes 509 that are close to each other. The second nozzles 510 are inclined downwards. End connecting pipes 511 are symmetrically installed at both ends of the second paint spray pipes 509. The end connecting pipes 511 are L-shaped. The top ends of the two end connecting pipes 511 are connected to the top walls of the two sliding grooves 504 on the mounting bracket 503 at their furthest ends. First nozzles 507 are equidistantly installed on the sides of the two first paint spray pipes 505 that are close to each other. The first nozzles 507 are inclined downwards. A top connecting pipe 506 is installed at the top of the top plate 2. A material box 4 is installed at the top of the top plate 2. A pump body is installed inside the material box 4. The material box 4 has two discharge ports, and a discharge hose is installed on each of the two discharge ports. The two discharge hoses are fixedly connected to the top connecting pipes 506 on the two first spray pipes 505 respectively. A guide groove 512 is opened at the top of the slide groove 504. A top cylinder 514 is installed in the middle of the top of the mounting bracket 503. Side grooves 515 are symmetrically opened on both sides of the top cylinder 514. A longitudinal moving plate 516 is movably installed inside the top cylinder 514. Side blocks 517 are symmetrically installed on both sides of the longitudinal moving plate 516. The side blocks 517 are slidably installed inside the side grooves 515. A guide block 513 is installed at the top of the slider 508. Block 513 is slidably connected to guide groove 512. The two side blocks 517 are hinged to one end of two rotating rods 518 on opposite sides. The other ends of the two rotating rods 518 are hinged to the top of two guide blocks 513. Two first spray pipes 505 are set above the fire cabinet. The pump body in the material box 4 is turned on, so that the paint in the material box 4 enters the first spray pipe 505 and is sprayed downward from the first nozzle 507 onto the top wall of the fire cabinet. The motor 520 is turned on, so that the screw 519 rotates. Since the screw 519 is threadedly connected to the longitudinal plate 516, it drives the longitudinal plate 516 to move downward, thereby pushing the two first spray pipes 505 away from each other, which facilitates spraying the top wall of the fire cabinet and expands the spraying range.

[0039] The pipe connection unit 521 includes an inner cavity 5211 formed inside the slider 508. The inner cavity 5211 is connected to the inside of the first paint spray pipe 505. A fixed outer cylinder 5212 is installed inside the inner cavity 5211. The bottom end of the fixed outer cylinder 5212 extends into the inside of the slide groove 504. A movable inner cylinder 5214 is movably installed inside the fixed outer cylinder 5212. The outer wall of the movable inner cylinder 5214 is in close contact with the inner wall of the fixed outer cylinder 5212. The fixed outer cylinder 5212 is close to the first paint spray pipe. A connecting hole 5213 is provided on one side of 505. The outer diameter of the movable inner cylinder 5214 is equal to the inner diameter of the end connecting pipe 511. A top bracket 5215 is installed at the top of the movable inner cylinder 5214. An inner groove 5216 is provided inside the slider 508. The inner groove 5216 is located above the fixed outer cylinder 5212. A movable plate 5217 is movably installed inside the inner groove 5216. A hanging rod 5218 is installed at the bottom end of the movable plate 5217. The bottom end of the hanging rod 5218 extends through to the fixed outer cylinder. Inside 5212, the bottom end of the hanging rod 5218 is fixedly connected to the top frame 5215. A first spring 5219 is installed at the bottom end of the movable plate 5217, and a first magnet 52110 is installed at the top end of the movable plate 5217. A first electromagnet 52111 is installed on the inner top wall of the inner groove 5216. The first electromagnet 52111 is connected to an external power source and is magnetically connected to the first magnet 52110. After the top wall of the fire cabinet is painted, the two first paint spray pipes 505... The first and second spray pipes 505 and 509 are arranged in a U-shape. When the first electromagnet 52111 is energized, the movable inner cylinder 5214 moves downward and inserts into the end connecting pipe 511, so that the first spray pipe 505 and the second spray pipe 509 are connected. Through the cylinder 502, the two first spray pipes 505 and the two second spray pipes 509 move downward along the four vertical side walls of the fire cabinet, which facilitates simultaneous spraying of the four vertical side walls of the fire cabinet, improves the spraying speed and efficiency.

[0040] The bottom wall painting assembly 6 includes a collection groove 601 formed inside the base 1. Sliding grooves 602 are symmetrically formed on the inner walls of the collection groove 601 on both sides parallel to the mounting bracket 503. Two support plates 603 are movably installed inside the collection groove 601. Each support plate 603 includes a first support plate 603a and a second support plate 603b. Both ends of the support plates 603 are slidably installed inside the two sliding grooves 602. Second springs 604 are installed at the ends of the two support plates 603 on opposite sides. The end of the second spring 604 away from the support plate 603 is fixedly connected to the inner wall of the end of the sliding groove 602. The top of the base 1 has a collection groove 601. The fire cabinet is placed on the two support plates 603. The top wall and four sides of the fire cabinet are then painted. When painting the side walls, excess paint flows along the four side walls into the collection tank 601, facilitating the collection and centralized treatment of excess paint. This also facilitates painting the bottom wall of the fire cabinet, expanding the painting area. Fixed plates 605 are installed on the opposite sides of the tops of the two support plates 603. A transverse pushing unit 606 is installed at the bottom of the first spray pipe 505, and a longitudinal pressing unit 607 is installed at the top of the top plate 2. The transverse pushing unit 606 includes transverse cylinders 6061 symmetrically installed below the two first spray pipes 505. A first movable block 6062 is movably installed inside the transverse cylinder 6061. Push plates 6064 are provided on the opposite sides of the two transverse cylinders 6061. The first movable block 6062 is positioned close to the push plate 6064. A push rod 6063 is provided on the side, one end of which is fixedly connected to a push plate 6064. A third spring 6065 is installed on the side of the first movable block 6062 near the push plate 6064, one end of which is fixedly connected to the inner wall of the transverse cylinder 6061 near the push plate 6064. A second magnet 6066 is installed on the side of the first movable block 6062 away from the push plate 6064. A second electromagnet 6067 is installed on the end of the transverse cylinder 6061 away from the push plate 6064. The second electromagnet 6067 is externally powered and magnetically connected to the second magnet 6066. The two transverse cylinders 6061 are respectively located above the two support plates 603. The longitudinal pressing unit 607 includes symmetrically installed components on the top plate 2. Two longitudinal cylinders 6071 are located at the top, each above a support plate 603. A second movable block 6072 is movably installed inside each longitudinal cylinder 6071. A pressure rod 6073 is installed at the bottom of the second movable block 6072, extending through to the bottom of the top plate 2. A pressure plate 6074 is installed at the bottom of the pressure rod 6073. A fourth spring 6075 is installed at the bottom of the second movable block 6072, and its bottom is fixedly connected to the inner bottom wall of the longitudinal cylinder 6071. A third magnet 6076 is installed at the top of the second movable block 6072, and a third electromagnet 6077 is installed at the top of the longitudinal cylinder 6071. The third electromagnet 6077 and the third magnet 6076 are magnetically connected.The second electromagnet 6067 above the first support plate 603a and the third electromagnet 6077 above the second support plate 603b are connected in series. The second electromagnet 6067 above the second support plate 603b and the third electromagnet 6077 above the first support plate 603a are also connected in series. After excess paint enters the collection tank 601, the first support plate 603a is first moved outward, so that the first support plate 603a is no longer in contact with half of the bottom wall of the fire cabinet and comes into contact with the paint inside the collection tank 601. Then, after the first support plate 603a moves back, the second support plate 603b is moved outward, so that the second support plate 603b is no longer in contact with the other half of the bottom wall of the fire cabinet. The paint comes into contact with the paint inside the collection tank 601, facilitating contact between the bottom wall of the fire cabinet and the paint, allowing the paint to adhere to the bottom wall of the fire cabinet, making it easier to paint the bottom wall and expanding the painting area. When the first support plate 603a moves outward, the third electromagnet 6077 above the second support plate 603b is energized, causing the pressure plate 6074 to press and fix the fire cabinet onto the second support plate 603b. When the second support plate 603b moves outward, the third electromagnet 6077 above the first support plate 603a is energized, causing the pressure plate 6074 to press and fix the fire cabinet onto the first support plate 603a, thereby improving the stability of the fire cabinet during bottom wall painting and preventing the fire cabinet from tipping over.

[0041] Working principle: When in use, the fire cabinet to be painted is placed on top of two support plates 603. The top connecting pipes 506 of the two first paint spray pipes 505 are connected to the two discharge ports on the material box 4 through hoses. At this time, the two first paint spray pipes 505 are close to each other. The pump body inside the material box 4 is turned on, so that the paint is input into the first paint spray pipes 505 and sprayed out from the first nozzle 507 at an angle to the top wall of the fire cabinet. At the same time, the motor 520 is turned on, so that the screw 519 rotates. Since the screw 519 is threadedly connected to the longitudinal plate 516, it drives the longitudinal plate 516 to move downward. Then, through the rotating rod 518, it pushes the two first paint spray pipes 505 away from each other, thereby completing the painting of the top wall of the fire cabinet.

[0042] After the top wall of the fire cabinet is painted, the two first paint spray pipes 505 and the two second paint spray pipes 509 are arranged in a U-shape. When the first electromagnet 52111 is energized, it generates a repulsive force on the first magnetic block 52110. Under the action of the repulsive force, the movable inner cylinder 5214 is pushed down and inserted into the end connecting pipe 511. At this time, the paint enters the second paint spray pipe 509 from the first paint spray pipe 505 through the connecting hole 5213 and the movable inner cylinder 5214.

[0043] At this time, disconnect the power supply of motor 520 and open cylinder 502, causing cylinder 502 to move downward. At this time, the two first spray pipes 505 and the two second spray pipes 509 move downward along the four vertical side walls of the fire cabinet, continuously spraying paint onto the four vertical side walls of the fire cabinet, thereby increasing the spraying speed and work efficiency. When the two first spray pipes 505 and the two second spray pipes 509 move close to the bottom wall of the fire cabinet, close cylinder 502.

[0044] During the painting process, a significant amount of paint flows down the side wall of the fire cabinet into the collection tank 601. After painting the top wall and four side walls of the fire cabinet, the collection tank 601 contains a considerable amount of paint. Because the bottom wall of the fire cabinet is positioned on top of the support plate 603, it cannot be painted. Since the second electromagnet 6067 above the first support plate 603a is connected in series with the third electromagnet 6077 above the second support plate 603b, and the second electromagnet 6067 above the second support plate 603b is connected in series with the third electromagnet 6077 above the first support plate 603a, the second electromagnet 6067 above the first support plate 603a and the third electromagnet 6077 above the second support plate 603b are energized first, causing the second electromagnet 6067 to energize the second magnetic block 606. 6 generates a repulsive force, causing the push plate 6064 to push the fixing plate 605 on the first support plate 603a outward, causing the first support plate 603a to move away from the bottom of the fire cabinet. At the same time, the third electromagnet 6077 above the second support plate 603b is energized, generating a repulsive force on the third magnetic block 6076, causing the pressure plate 6074 to move downward and press the fire cabinet onto the second support plate 603b. When the first support plate 603a moves away from the bottom of the fire cabinet, the fire cabinet is pressed and fixed onto the second support plate 603b to prevent the fire cabinet from tipping over. Then, the second support plate 603b is moved away from the bottom of the fire cabinet in the same manner, and the fire cabinet is pressed onto the first support plate 603a, so that the bottom wall of the fire cabinet can fully contact the paint in the collection tank 601, allowing the paint to adhere to the bottom wall of the fire cabinet, making it convenient to paint the bottom wall of the fire cabinet.

Claims

1. A spray painting device for fire cabinets, comprising a base (1), characterized in that: The base (1) is provided with a top plate (2) above it. Support columns (3) are installed at the four corners of the top of the base (1). The support columns (3) are fixedly connected to the bottom of the top plate (2). The top plate (2) is provided with a cabinet painting assembly (5). The top of the base (1) is provided with a bottom wall painting assembly (6). The cabinet painting assembly (5) includes mounting plates (501) symmetrically arranged below the top plate (2). Two mounting brackets (503) are provided below the mounting plates (501). The mounting plates (501) and the mounting brackets (503) are arranged vertically. The bottom sides of the two mounting plates (501) are respectively fixedly connected to the top of one end of the two mounting brackets (503). The top of the mounting plates (501) is fixedly connected to the output end of the cylinder (502). The cylinder (502) is fixedly installed on the top plate. At the top of (2), two mounting brackets (503) are symmetrically provided with sliding grooves (504) on their sides that are close to each other. Two first paint spray tubes (505) are symmetrically provided between the two mounting brackets (503). Slider blocks (508) are symmetrically installed at both ends of the first paint spray tubes (505). The sliders (508) are slidably installed inside the sliding grooves (504). A pipe connecting unit (521) is installed inside the sliders (508). A second paint spray tube (509) is installed at the bottom of the mounting bracket (503).

2. The spray painting device for a fire cabinet according to claim 1, characterized in that: The second paint spray tube (509) is set perpendicularly to the first paint spray tube (505). The two second paint spray tubes (509) are each equidistantly equipped with a second nozzle (510) on the side that is close to each other. The second nozzle (510) is set downward. The two ends of the second paint spray tube (509) are symmetrically equipped with end connecting tubes (511). The end connecting tubes (511) are set in an L-shape. The top ends of the two end connecting tubes (511) are connected to the top wall of the two sliding grooves (504) on the mounting bracket (503) at the opposite end.

3. The spray painting device for a fire cabinet according to claim 1, characterized in that: Two first paint spray pipes (505) are each equipped with a first nozzle (507) at equal intervals on the side of each other. The first nozzle (507) is inclined downward. A top connecting pipe (506) is installed at the top of the first paint spray pipe (505). A material box (4) is installed at the top of the top plate (2). A pump body is installed inside the material box (4). The material box (4) is provided with two discharge ports. A discharge hose is installed on each of the two discharge ports. The two discharge hoses are fixedly connected to the top connecting pipe (506) on the two first paint spray pipes (505).

4. The spray painting device for a fire cabinet according to claim 1, characterized in that: The top of the slide (504) is provided with a guide groove (512), the top of the mounting bracket (503) is provided with a top cylinder (514) at the middle of the top, the top cylinder (514) is provided with side grooves (515) symmetrically on both sides, the top cylinder (514) is provided with a longitudinal sliding plate (516) movably installed inside the top cylinder (514), the side blocks (517) are symmetrically installed on both sides of the longitudinal sliding plate (516), the side blocks (517) are slidably installed inside the side grooves (515), the top of the slider (508) is provided with a guide block (513), the guide block (513) is slidably connected to the guide groove (512), the two side blocks (517) are respectively hinged to one end of the two rotating rods (518) on the side away from each other, and the other end of the two rotating rods (518) is respectively hinged to the top of the two guide blocks (513).

5. A spray painting device for a fire cabinet according to claim 1, characterized in that: The pipe connection unit (521) includes an inner cavity (5211) opened inside the slider (508), the inner cavity (5211) is connected to the inside of the first paint spray pipe (505), a fixed outer cylinder (5212) is installed inside the inner cavity (5211), the bottom end of the fixed outer cylinder (5212) extends into the inside of the slide groove (504), a movable inner cylinder (5214) is movably installed inside the fixed outer cylinder (5212), the outer wall of the movable inner cylinder (5214) is in close contact with the inner wall of the fixed outer cylinder (5212), a connecting hole (5213) is opened on the side of the fixed outer cylinder (5212) near the first paint spray pipe (505), the outer diameter of the movable inner cylinder (5214) is equal to the inner diameter of the end connecting pipe (511), and a top bracket (5215) is installed at the top of the movable inner cylinder (5214).

6. A spray painting device for a fire cabinet according to claim 5, characterized in that: The slider (508) has an inner groove (5216) inside, which is located above the fixed outer cylinder (5212). A movable plate (5217) is movably installed inside the inner groove (5216). A hanging rod (5218) is installed at the bottom of the movable plate (5217). The bottom of the hanging rod (5218) extends into the interior of the fixed outer cylinder (5212). The bottom of the hanging rod (5218) is fixedly connected to the top frame (5215). A first spring (5219) is installed at the bottom of the movable plate (5217). A first magnetic block (52110) is installed at the top of the movable plate (5217). A first electromagnet (52111) is installed on the inner top wall of the inner groove (5216). The first electromagnet (52111) is connected to an external power source. The first electromagnet (52111) is magnetically connected to the first magnetic block (52110).

7. The spray painting device for a fire cabinet according to claim 1, characterized in that: The bottom wall painting assembly (6) includes a collection groove (601) inside the base (1). The collection groove (601) has symmetrical sliding grooves (602) on its inner walls on both sides parallel to the mounting bracket (503). Two support plates (603) are movably installed inside the collection groove (601). Each support plate (603) includes a first support plate (603a) and a second support plate (603b). Both ends of each support plate (603) are slidably installed in the two sliding grooves (602). Inside, a second spring (604) is installed at both ends of the two support plates (603) on the side away from each other. The end of the second spring (604) away from the support plate (603) is fixedly connected to the inner wall of the end of the sliding groove (602). A fixing plate (605) is installed at the top of the two support plates (603) on the side away from each other. A transverse pushing unit (606) is installed at the bottom end of the first paint spray tube (505), and a longitudinal pressing unit (607) is installed at the top end of the top plate (2).

8. A spray painting device for a fire cabinet according to claim 7, characterized in that: The lateral pushing unit (606) includes lateral cylinders (6061) symmetrically installed below two first paint spray pipes (505). A first movable block (6062) is movably installed inside the lateral cylinder (6061). Push plates (6064) are provided on the sides of the two lateral cylinders (6061) that are far apart from each other. A push rod (6063) is provided on the side of the first movable block (6062) near the push plate (6064). One end of the push rod (6063) is fixedly connected to the push plate (6064). A third spring is installed on the side of the first movable block (6062) near the push plate (6064). 6065), one end of the third spring (6065) is fixedly connected to the inner wall of the end of the transverse cylinder (6061) near the push plate (6064), the first movable block (6062) is equipped with a second magnetic block (6066) on the side away from the push plate (6064), the transverse cylinder (6061) is equipped with a second electromagnet (6067) on the end away from the push plate (6064), the second electromagnet (6067) is connected to an external power supply, the second electromagnet (6067) is magnetically connected to the second magnetic block (6066), and the two transverse cylinders (6061) are respectively located above the two support plates (603).

9. A spray painting device for a fire cabinet according to claim 7, characterized in that: The longitudinal pressing unit (607) includes two longitudinal cylinders (6071) symmetrically installed at the top of the top plate (2). The two longitudinal cylinders (6071) are respectively located above the two support plates (603). A second movable block (6072) is movably installed inside the longitudinal cylinder (6071). A pressure rod (6073) is installed at the bottom end of the second movable block (6072). The bottom end of the pressure rod (6073) extends through to the bottom of the top plate (2). A pressure plate (6074) is installed at the bottom end of the pressure rod (6073). A fourth spring (6075) is installed at the bottom end of the second movable block (6072). The bottom end of the fourth spring (6075) is... The second movable block (6072) is fixedly connected to the inner bottom wall of the longitudinal cylinder (6071). A third magnetic block (6076) is installed at the top of the second movable block (6072). A third electromagnet (6077) is installed at the top of the longitudinal cylinder (6071). The third electromagnet (6077) is magnetically connected to the third magnetic block (6076). The second electromagnet (6067) above the first support plate (603a) and the third electromagnet (6077) above the second support plate (603b) are connected in series. The second electromagnet (6067) above the second support plate (603b) and the third electromagnet (6077) above the first support plate (603a) are connected in series.

10. A painting method for a paint spraying device for a fire cabinet according to any one of claims 1-9, wherein the painting steps are as follows: S1. Place the fire cabinet on two support plates (603), turn on the pump in the material box (4) so ​​that the paint is sprayed from the top connecting pipe (506) on the first spray pipe (505) toward the top wall of the fire cabinet. At the same time, turn on the motor (520) so that the two first spray pipes (505) move away from each other and spray paint on the top wall of the fire cabinet. S2. After the top wall of the fire cabinet is painted, the first electromagnet (52111) is energized, causing the movable inner cylinder (5214) to move downward and enter the end connecting pipe (511), so that the first paint pipe (505) and the second paint pipe (509) are connected. The cylinder (502) is opened, so that the two first paint pipes (505) and the two second paint pipes (509) move downward along the four vertical side walls of the fire cabinet to paint the four vertical side walls of the fire cabinet. S3. After painting the four vertical side walls of the fire cabinet, first move the first support plate (603a) outward so that the first support plate (603a) is out of contact with half of the bottom wall of the fire cabinet and comes into contact with the paint inside the collection tank (601). Then, after the first support plate (603a) is moved back, move the second support plate (603b) outward so that the second support plate (603b) is out of contact with the other half of the bottom wall of the fire cabinet and comes into contact with the paint inside the collection tank (601). This allows the paint collected inside the collection tank (601) to come into contact with the bottom wall of the fire cabinet and adhere to it, making it convenient to paint the bottom wall of the fire cabinet.

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