CN117696310A

CN117696310A - Coating spraying equipment for special-shaped steel pipes

Info

Publication number: CN117696310A
Application number: CN202311429205.7A
Authority: CN
Inventors: 曾招平
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-10-31
Filing date: 2023-10-31
Publication date: 2024-03-15

Abstract

The invention relates to the field of paint spraying equipment, and discloses paint spraying equipment for special-shaped steel pipes. The spray coating device aims at solving the problems that the existing spray coating device is unstable in spray coating quantity of steel pipes with different calibers and the number of spray heads cannot be adaptively adjusted. The utility model provides a coating spraying equipment for dysmorphism steel pipe, is including the base that the symmetry set up, the symmetry sets up rotate between the base and be connected with the first threaded rod of symmetric distribution, the symmetric distribution threaded connection has the spraying frame between the first threaded rod, one side rigid coupling of spraying frame has the coating case unanimous with dysmorphism steel pipe side quantity, coating case sliding connection has a plurality of shower nozzle, sliding connection has the stripper plate in the coating case. According to the invention, the spray heads are driven to move inwards through the extrusion plate, so that the spraying distance is adjusted to adjust the spraying amount, and the spray heads at the inner edge of the paint box are opposite to and blocked by spray head nozzles at the inner edge of the adjacent paint box, so that the number of the spray heads is adjusted.

Description

Coating spraying equipment for special-shaped steel pipes

Technical Field

The invention relates to the field of paint spraying equipment, and discloses paint spraying equipment for special-shaped steel pipes.

Background

After the steel pipe is produced, in order to meet different application requirements of the steel pipe in different application scenes, different types of paint are required to be sprayed on the outer surface of the steel pipe, but when the special-shaped steel pipe is sprayed, the cross section of the special-shaped steel pipe is not round and is provided with a plurality of edges and angles, so that when the spraying machine suitable for the special-shaped steel pipe is used for spraying paint, the number of spraying heads of the spraying machine is constant, the distance between the spraying heads and the outer surface of the steel pipe is also constant, but the diameter of the special-shaped steel pipe is not constant, when the special-shaped steel pipe with a larger caliber is sprayed, the spraying range is relatively narrowed, the sprayed paint amount is unchanged, the sprayed paint amount in the same area is relatively increased, the sprayed paint amount is unstable, the number of the spraying heads in the same direction cannot be adjusted in a targeted manner, the spraying heads in the same direction are overflowed, the paint is sprayed on other surfaces of the special-shaped steel pipe, and the special-shaped steel pipe is unevenly sprayed.

Disclosure of Invention

The invention provides special-shaped steel pipe paint spraying equipment for adjusting the distance between a spray head and a steel pipe and adjusting the number of the spray heads, which solves the problems in the prior art.

The technical scheme of the invention is as follows: the utility model provides a coating spraying equipment for dysmorphism steel pipe, is including the base that the symmetry set up, the symmetry sets up the base is located same horizontal line, the symmetry sets up rotate between the base and be connected with the first threaded rod of symmetric distribution, one side the base is provided with and is used for driving first threaded rod pivoted power component, the symmetric distribution threaded connection has the spraying frame between the first threaded rod, one side rigid coupling of spraying frame has the coating case unanimous with dysmorphism steel pipe side quantity, adjacent intercommunication has the square pipe between the coating case, one side sliding connection that the coating case is close to the steel pipe has a plurality of shower nozzle, keep away from in the coating case adjacent one side sliding connection of shower nozzle has the stripper, the stripper with adjacent be connected with the pressure spring between the shower nozzle, the stripper rigid coupling has with adjacent coating case sliding connection's first slide bar, the symmetry sets up sliding connection has the loop bar between the base, loop bar sliding connection has first direction plectane, first slide bar with first direction plectane sliding connection, the frame with intercommunication has between one of the coating case, it has the pipe and is fixed for between the first threaded rod fixed line.

As a further preferable scheme, the first guide circular plate is provided with an arc-shaped groove, the first sliding rod slides along the arc-shaped groove, a telescopic component is arranged between the paint box and the spray heads positioned at the edge of the paint box, and the spray heads adjacent to the edge of the paint box and close to each other are mutually matched.

As a further preferable scheme, the fixing component comprises second guide circular plates which are symmetrically distributed, the second guide circular plates which are symmetrically distributed are all in sliding connection with two sides of the first threaded rod, first sliding blocks which are symmetrically distributed and are consistent with the side edges of the special-shaped steel pipes in number are connected to the opposite sides of the second guide circular plates in a sliding mode, guide rods are fixedly connected to the first sliding blocks, clamping blocks are fixedly connected to one sides, far away from the first sliding blocks, of the guide rods, and the sleeve rods are provided with extrusion components used for driving the clamping blocks to clamp the side edges of the special-shaped steel pipes.

As a further preferable scheme, the extrusion assembly comprises third guide circular plates which are symmetrically distributed, the third guide circular plates which are symmetrically distributed are respectively and slidably connected to two sides of the loop bar, the paint box is positioned between the third guide circular plates which are symmetrically distributed, the third guide circular plates which are symmetrically distributed are positioned between the second guide circular plates which are symmetrically distributed, the third guide circular plates are rotatably connected with the adjacent second guide circular plates, the guide bar is slidably connected with the adjacent third guide circular plates, electric push rods are fixedly connected to opposite sides of the base which are symmetrically arranged, the telescopic rods of the electric push rods are connected with the adjacent second guide circular plates, a rotating column is matched in the third guide circular plates in a rotating mode, a fourth guide circular plate is fixedly connected to one side of the rotating column, which is close to the adjacent clamping block, of the rotating column, the clamping block is slidably connected with the adjacent fourth guide circular plates, and a spring is connected between the rotating column and the adjacent second guide circular plates.

As a further preferable scheme, the rotary column is provided with an arc chute, and an arc protrusion matched with the arc chute of the rotary column is arranged in the third guide circular plate.

As a further preferred embodiment, the third guide disk is provided with an arc-shaped groove extending from the outside to the inside, and the guide rod slides along the arc-shaped groove.

As a further preferable scheme, the power assembly comprises a supporting plate, the supporting plate is connected to the base on one side in a sliding manner, the supporting plate is rotationally connected with a first motor, an output shaft of the first motor is fixedly connected with a first friction wheel, the base of the supporting plate is rotationally connected with a second friction wheel, the first friction wheel is in transmission fit with the second friction wheel, and a gear transmission assembly for driving the first threaded rod to rotate is arranged between the second friction wheel and the first threaded rod.

As a further preferable mode, the first friction wheel is in a round table shape, and the side with the larger diameter of the first friction wheel is close to the first motor.

As still further preferred scheme, still including the supporting component who is used for supporting the steel pipe, the supporting component is including the bottom plate, the bottom plate is located the symmetry setting between the base, the bottom plate rigid coupling has the second motor, the bottom plate rotates and is connected with the second threaded rod, the output shaft of second motor with pass through the gear train transmission between the second threaded rod, the bottom plate is kept away from one side rigid coupling of second threaded rod has the second slide bar, second slide bar sliding connection has the slide, the slide with second threaded rod threaded connection, the slide slidingtype is provided with the expansion block of symmetric distribution, the flexible end rigid coupling of expansion block has first support frame, expansion block sliding connection has the second support frame of symmetric distribution, second support frame threaded connection has the third threaded rod, the third threaded rod with adjacent first support frame rotates to be connected.

As a further preferable scheme, the spray coating device further comprises an adjusting component for adjusting the moving speed of the spray coating frame, the adjusting component comprises a second sliding block, the second sliding block is rotationally connected to one side, close to the first motor, of the loop bar, a third supporting frame is slidingly connected to the bottom plate, close to the first motor, of the bottom plate, the third supporting frame is slidingly connected with the second sliding block, a fourth threaded rod is in threaded connection to one side, close to the supporting plate, of the third supporting frame, and the fourth threaded rod is rotationally connected with the supporting plate.

Compared with the prior art, the invention has the following advantages:

1. according to the invention, the spray heads are driven to move inwards through the extrusion plate, the spray heads are driven to move inwards to adjust the spray distance so as to adjust the spray amount, the distance between the spray heads and the steel pipe is adjusted according to the caliber of the steel pipe, so that the spray heads always keep the optimal spray distance with the steel pipe, the optimal spray effect is ensured, the spray heads at the inner edge of the paint box are opposite to the spray head nozzles at the inner edge of the adjacent paint box and are blocked, the purpose of blocking the spray heads at the edge of the adjacent two paint boxes is realized, the number of the spray heads is adjusted according to the caliber of the steel pipe, and the spray heads at the edge are prevented from being sprayed on other surfaces of the steel pipe to influence the spray effect;

2. when the steel pipe is required to be placed for spraying, people can directly place the steel pipe between the first support frame and the second support frame in order to save labor;

3. when people need to actively adjust the spraying amount of the steel pipe, the fourth threaded rod is manually rotated, so that the fourth threaded rod rotates to drive the first motor to move, the contact position of the first friction wheel and the second friction wheel is adjusted, the linear speed of the second friction wheel is changed, the moving speed of the spraying frame is changed, and the spraying amount is adjusted;

4. when the aperture of the steel pipe is smaller, the loop bar rotates to drive the second sliding block to rotate, so that the second sliding block slides downwards on the third supporting frame and drives the third supporting frame to move backwards, thereby driving the first motor to move, accelerating the linear speed of the second friction wheel, accelerating the moving speed of the spraying frame when the aperture of the steel pipe is smaller, and accelerating the spraying efficiency.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of the components of the spray coating frame, the coating box, the square tube and the like;

FIG. 3 is a schematic cross-sectional view of the parts of the coating tank, square tube and spray head of the present invention;

FIG. 4 is a schematic perspective view of the guide bar, clamping block, loop bar, etc. of the present invention;

FIG. 5 is a schematic view of the exploded construction of the clamp block, swivel post and spring of the present invention;

FIG. 6 is a schematic perspective view of the components of the base plate, slide plate and expansion block of the present invention.

The marks in the drawings are: the device comprises a base, a first threaded rod, a 3-spraying frame, a 301-coating box, a 302-square tube, a 303-spraying nozzle, a 304-extruding plate, a 305-pressure spring, a 306-first sliding rod, a 307-sleeve rod, a 308-first guide circular plate, a 309-feeding pipe, a 4-second guide circular plate, a 401-first sliding block, a 402-guide rod, a 403-clamping block, a 5-third guide circular plate, a 501-electric push rod, a 502-rotating column, a 503-fourth guide circular plate, a 504-spring, a 6-supporting plate, a 601-first motor, a 602-first friction wheel, a 603-second friction wheel, a 7-bottom plate, a 701-second motor, a 702-second threaded rod, a 703-second sliding rod, a 704-sliding plate, a 705-telescopic block, a 706-first supporting frame, a 707-second supporting frame, a 708-third threaded rod, an 8-second sliding block, a 801-third supporting frame and a 802-fourth threaded rod.

Detailed Description

The invention is further described below with reference to the drawings and examples.

Example 1: the utility model provides a coating spraying equipment for special-shaped steel pipe, see the drawing 1-3, including the base 1 that sets up symmetrically, the quantity of base 1 is two, two bases 1 are located same horizontal line, rotate between two bases 1 and be connected with two first threaded rods 2, be provided with the power pack that is used for driving first threaded rod 2 rotation between base 1 and the first threaded rod 2 of left side, threaded connection has the spraying frame 3 that is used for carrying out the spraying to the steel pipe between two first threaded rods 2, the inboard rigid coupling of spraying frame 3 has the coating case 301 unanimous with special-shaped steel pipe side quantity, coating case 301 is used for splendid attire coating, the intercommunication has square pipe 302 between the adjacent coating case 301, the one side sliding connection of coating case 301 near the steel pipe has a plurality of shower nozzle 303 that is used for the coating blowout, the shower nozzle 303 spout of every coating case 301 inner edge all faces adjacent coating case 301, the nozzle of the middle nozzle 303 in each paint box 301 faces towards the steel pipe, a telescopic component is arranged between the nozzle 303 close to the edge of the paint box 301 and used for guiding in the process that the nozzle 303 at the edge is extruded, the nozzles 303 adjacent to the edge of the paint box 301 are mutually matched, one side of the paint box 301 far away from the adjacent nozzle 303 is slidingly connected with an extrusion plate 304 for extruding the nozzle 303 to move, a pressure spring 305 is connected between the extrusion plate 304 and the adjacent nozzle 303, one side of the extrusion plate 304 far away from the nozzle 303 is fixedly connected with a first slide bar 306, the first slide bar 306 is L-shaped, the first slide bar 306 is slidingly connected with the paint box 301, a sleeve rod 307 is slidingly connected between two bases 1, a first guiding circular plate 308 for driving the first slide bar 306 to move is slidingly connected on the sleeve rod 307, the first guiding circular plate 308 is positioned on the left side of the paint box 3, the first guide circular plate 308 is provided with an arc-shaped groove extending from the outer side to the circle center, the first sliding rod 306 slides along the arc-shaped groove, the end part of the first sliding rod 306, which is far away from the coating box 301, is fixedly connected with a limiting circular ring, the diameter of the limiting circular ring is larger than that of the arc-shaped groove, the first guide circular plate 308 is limited by the limiting circular ring, a feeding pipe 309 for feeding is communicated between the coating frame 3 and the uppermost coating box 301, a fixing component for fixing a special-shaped steel pipe is arranged between the sleeve rod 307 and the first threaded rod 2, the fixing component drives the sleeve rod 307 to rotate, the first sliding rod 306 is extruded, the spray head 303 is extruded, and the distance of the spray head 303 is adjusted.

Referring to fig. 4 and 5, the fixing assembly includes a second guiding circular plate 4 with symmetrical distribution, the second guiding circular plate 4 is a combination of guiding circular plate and hollow cylinder, the second guiding circular plate 4 with symmetrical distribution is respectively connected to two sides of the first threaded rod 2 in a sliding manner, a first sliding block 401 consistent with the number of the sides of the special-shaped steel pipe is connected to the opposite sides of the second guiding circular plate 4 with symmetrical distribution, a guiding rod 402 is fixedly connected to the first sliding block 401, a clamping block 403 for clamping the corners of the steel pipe is fixedly connected to the inner side of the guiding rod 402, the inner side surface of the clamping block 403 is a V-shaped wave surface, the guiding rod 402 drives the clamping block 403 to move inwards, the V surface on the inner side of the clamping block 403 is attached to the corners of the special-shaped steel pipe, clamping fixing of the steel pipe is achieved, and the sleeve rod 307 is provided with an extrusion assembly for driving the clamping block 403 to clamp the sides of the special-shaped steel pipe, and driving the guiding rod 402 to move inwards through the extrusion assembly, so as to drive the clamping block 403 to move inwards.

Referring to fig. 4 and 5, the extrusion assembly comprises symmetrically arranged third guide circular plates 5, the coating box 301 is located between the two third guide circular plates 5, the symmetrically distributed third guide circular plates 5 are respectively and slidably connected to two sides of the sleeve rod 307, the third guide circular plates 5 are located between the adjacent clamping blocks 403 and the adjacent second guide circular plates 4, the third guide circular plates 5 are rotationally connected with the adjacent second guide circular plates 4, the third guide circular plates 5 are provided with arc grooves extending from the outer sides to the circle center, the guide rods 402 slide along the arc grooves, the opposite sides of the two bases 1 are fixedly connected with electric push rods 501, the expansion rods of the electric push rods 501 are connected with the adjacent second guide circular plates 4, the expansion rods of the electric push rods 501 extend to drive the second guide circular plates 4 to move, the third guide circular plates 5 rotate to be matched with a rotary column 502, an arc chute is arranged in the third guide circular plates 5, one side of the rotary column 502 close to the adjacent clamping blocks 403 is fixedly connected with a fourth guide circular plate 503, one side of the rotary column 503 far away from the fourth guide circular plates 403 is connected with the adjacent second guide circular plates 403 to the adjacent second guide circular plates 4, and the rotary column 503 is connected with the fourth guide circular plates 403 in a sliding mode, and the rotary column 503 is enabled to slide between the adjacent second guide circular plates 403 and the adjacent second guide circular plates 4 to rotate, and the rotary column 503 is enabled to rotate along with the fourth guide blocks 4, and the rotary column 503 is enabled to slide along with the rotary column 4, and slide to enable the rotary column to slide between the adjacent steel plates to be connected with the adjacent steel plates to the rotary column 4, and the rotary column to rotate.

Referring to fig. 1, the power assembly includes a support plate 6, the support plate 6 is slidably connected with a left base 1, a first motor 601 for providing power is rotatably connected to the support plate 6, an output shaft of the first motor 601 is fixedly connected with a first friction wheel 602, the first friction wheel 602 is in a shape of a circular truncated cone, a side with a larger diameter of the first friction wheel 602 is close to the first motor 601, a left base 1 is rotatably connected with a second friction wheel 603, the first friction wheel 602 is in transmission fit with the second friction wheel 603, and a gear transmission assembly for driving the first threaded rod 2 to rotate is arranged between the second friction wheel 603 and the first threaded rod 2.

When the special-shaped steel pipe is required to be sprayed with paint, the steel pipe is lifted between the two clamping blocks 403, then the electric push rod 501 is started by people, the expansion rod of the electric push rod 501 stretches to drive the second guide circular plate 4 to move towards the steel pipe, the circular plate 4 drives the third guide circular plate 5, the rotating column 502 and the fourth guide circular plate 503 to move towards the steel pipe, meanwhile, the first sliding block 401, the guide rod 402 and the clamping blocks 403 also move towards the steel pipe, and when the two fourth guide circular plates 503 are propped against two ends of the steel pipe, the clamping blocks 403 are just clamped on corners of the steel pipe to clamp the steel pipe.

After the steel pipe is clamped, the first motor 601 is started, the output shaft of the first motor 601 drives the first friction wheel 602 to rotate, the second friction wheel 603 is driven to rotate, the first threaded rod 2 is driven to rotate through the gear transmission assembly, the spraying frame 3 is driven to move, the spraying frame 3 is externally connected with a pipeline through the feeding pipe 309 to be added with paint, the paint enters other coating boxes 301 through the square pipe 302, the paint is sprayed out through the spray heads 303, and all sides of the special-shaped steel pipe can be sprayed by the spray heads 303, so that the effect of uniform spraying is achieved.

When the caliber of the special-shaped steel pipe to be sprayed is smaller, the steel pipe is not clamped by the clamping blocks 403 when the fourth guide circular plate 503 is propped against two ends of the steel pipe, at the moment, the telescopic rod of the electric push rod 501 continues to stretch, the fourth guide circular plate 503 is propped against two ends of the steel pipe and cannot continue to move, the second guide circular plate 4 and the third guide circular plate 5 continue to move inwards along with the telescopic rod of the electric push rod 501, so that the spring 504 is compressed, the third guide circular plate 5 moves inwards to enable the arc-shaped bulge on the third guide circular plate 5 to move along the arc-shaped groove of the rotating column 502, so that the third guide circular plate 5 moves inwards and rotates relative to the rotating column 502, the guide rod 402 moves inwards to drive the first sliding block 401 and the clamping blocks 403 to move inwards until the electric push rod 501 stops working after the clamping block 403 clamps the steel pipe, at this time, the third guide circular plate 5 drives the loop bar 307 to rotate, so as to drive the first guide circular plate 308 to rotate, so that the first slide bar 306 slides along the groove of the first guide circular plate 308, so as to drive the extrusion plate 304 to move inwards, so that the pressure spring 305 is compressed, then the extrusion plate 304 drives the spray heads 303 to move inwards, the spray heads 303 at the inner edge of the paint box 301 are opposite to spray heads 303 at the inner edge of the adjacent paint box 301, the purpose of blocking the spray heads 303 at the edge of the adjacent two paint boxes 301 is achieved, the number of spray heads 303 is adjusted according to the caliber of the steel pipe, the spray heads 303 at the edge are prevented from being sprayed onto other surfaces of the steel pipe, the spraying effect is affected, the distance between the spray heads 303 and the steel pipe is adjusted according to the caliber of the steel pipe, the spray heads 303 always keep the optimal spraying distance from the steel pipe, and the optimal spraying effect is ensured.

When the spraying is finished, the output shaft of the first motor 601 continues to rotate to enable the spraying frame 3 to continue moving, and moves to the position, where the spraying frame 3 is located on the outer ring of the third guide circular plate 5, of the telescopic rod of the electric push rod 501 is shortened, so that the second guide circular plate 4 moves outwards, and accordingly the first sliding block 401, the guide rod 402 and the clamping block 403 are driven to move outwards, the spring 504 is reset gradually, meanwhile, the third guide circular plate 5 also returns in the process of moving and resetting along with the second guide circular plate 4 outwards, the guide rod 402 and the clamping block 403 are opened, the steel pipe is loosened, and people can take away the sprayed steel pipe, and the first motor 601 and the electric push rod 501 are closed.

Example 2: based on embodiment 1, referring to fig. 1 and 6, the support assembly further comprises a support assembly for supporting steel pipes, the support assembly comprises a bottom plate 7, the bottom plate 7 is located between two bases 1, a second motor 701 is fixedly connected to the front side of the bottom plate 7, a second threaded rod 702 is rotatably connected to the left side of the bottom plate 7, gears are connected to the output shaft of the second motor 701 and the front side of the second threaded rod 702 in a key manner, the two gears are meshed with each other, a second slide bar 703 is fixedly connected to the right side of the bottom plate 7, a slide plate 704 is slidably connected to the second slide bar 703, the slide plate 704 is in threaded connection with the second threaded rod 702, symmetrically distributed telescopic blocks 705 are slidably arranged on the slide plate 704, springs are arranged in the telescopic blocks 705, the telescopic blocks can be naturally reset after being extruded, a first support frame 706 for supporting the bottom of a steel pipe is fixedly connected to the top of the telescopic blocks 705, the upper portion of the first support frame 706 is L-shaped steel pipe 707 for limiting the end of the steel pipe, the second support frame 707 is slidably connected to the second support side edges close to the bottom of the steel pipe, the upper portion of the second support frame 707 is L-shaped, the upper portion of the second support frame 706 is matched with the first support frame 706, the first support frame 706 is in a position of the second support frame is matched with the first support frame 706, and the third support frame 708 is rotatably connected to the third support frame 708 is rotatably and is in a position different from the threaded rod 708.

When the steel pipe needs to be placed for spraying, in order to save manpower, people can directly place the steel pipe between the first support frame 706 and the second support frame 707, the telescopic block 705 is contracted by the gravity of the steel pipe, at the moment, the telescopic block 705 is not contracted to a limiting state, the distance between the first support frame 706 and the second support frame 707 is adjusted by rotating the third threaded rod 708 so as to adapt to different-size special-shaped steel pipes, then the second motor 701 is started, the output shaft of the second motor 701 rotates to drive the second threaded rod 702 to rotate through the gear set, so that the sliding plate 704 moves, thereby driving the first support frame 706 and the second support frame 707 to move, so that the steel pipe moves to be clamped between the clamping blocks 403 at two sides, then the output shaft of the second motor 701 reverses, so that the telescopic block 705 continues to contract because the second support frame 707 is extruded by the steel pipe in the moving process of the sliding plate 704 until the sliding plate 704 drives the telescopic block 705 to be separated from the contact with the steel pipe, and the telescopic block 705 naturally resets.

After the steel pipe spraying is finished, when the spraying frame 3 moves to be positioned on the outer ring of the third guide circular plate 5, the second motor 701 is started again, the first supporting frame 706 and the second supporting frame 707 are driven to the lower side of the steel pipe to support the steel pipe, and after the clamping block 403 loosens the steel pipe, the output shaft of the second motor 701 is reversed, and the steel pipe is driven to move out.

Example 3: based on embodiment 2, referring to fig. 1, the spray coating device further comprises an adjusting component for adjusting the moving speed of the spray coating frame 3, the adjusting component comprises a second sliding block 8, the second sliding block 8 is rotatably connected to the left side of the loop bar 307, the bottom plate 7 on the left side is slidably connected with a third supporting frame 801, the third supporting frame 801 is located on the front side of the supporting plate 6, the upper portion of the third supporting frame 801 is slidably connected with the second sliding block 8, the lower portion of the third supporting frame 801 is in threaded connection with a fourth threaded rod 802, the fourth threaded rod 802 is rotatably connected with the supporting plate 6, and the distance between the supporting plate 6 and the third supporting frame 801 is adjusted by rotating the fourth threaded rod 802, so that the contact position between the first friction wheel 602 and the second friction wheel 603 in the initial state is adjusted.

When people need to actively adjust the spraying amount of the steel pipe, people can manually rotate the fourth threaded rod 802, and the fourth threaded rod 802 rotates to drive the first motor 601 to move, so that the contact position of the first friction wheel 602 and the second friction wheel 603 is adjusted, the linear speed of the second friction wheel 603 is changed, the moving speed of the spraying frame 3 is changed, and the spraying amount is adjusted.

When the diameter of the steel pipe is smaller, the loop bar 307 rotates to drive the second sliding block 8 to rotate, so that the second sliding block 8 slides downwards on the third supporting frame 801 and drives the third supporting frame 801 to move backwards, so as to drive the first motor 601 to move, so that the linear speed of the second friction wheel 603 is increased, the transmission ratio of the first friction wheel 602 and the second friction wheel 603 is changed, and the moving speed of the spraying frame 3 is increased when the diameter of the steel pipe is smaller, and the spraying efficiency is increased.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A coating spraying equipment for dysmorphism steel pipe, its characterized in that: the device comprises a base (1) which is symmetrically arranged, the base (1) which is symmetrically arranged is positioned on the same horizontal line, a first threaded rod (2) which is symmetrically distributed is rotationally connected between the base (1) which is symmetrically arranged, one side of the base (1) is provided with a power component which is used for driving the first threaded rod (2) to rotate, a spray coating frame (3) is symmetrically distributed between the first threaded rods (2), one side of the spray coating frame (3) is fixedly connected with paint boxes (301) which are consistent with the number of the side edges of special-shaped steel pipes, square pipes (302) are communicated between adjacent paint boxes (301), one side, close to the steel pipes, of each paint box (301) is slidingly connected with a plurality of spray heads (303), one side, far away from the adjacent spray heads (303), of each spray head (301) is slidingly connected with a pressing plate (305), each pressing plate (304) is fixedly connected with a first sliding rod (306) which is slidingly connected with each adjacent paint box (301), one side of the paint boxes (301) is fixedly connected with a first sliding rod (307), each first sliding rod (308) is slidingly connected with a guide rod (308), a feeding pipe (309) is communicated between the spraying frame (3) and one of the paint boxes (301), and a fixing component for fixing the special-shaped steel pipe is arranged between the loop bar (307) and the first threaded rod (2).

2. A paint spraying apparatus for profiled steel pipes as claimed in claim 1 wherein: the first guide circular plate (308) is provided with an arc-shaped groove, the first sliding rod (306) slides along the arc-shaped groove, a telescopic component is arranged between the paint box (301) and the spray head (303) positioned at the edge of the paint box, and the spray heads (303) adjacent to the edge of the paint box (301) and close to each other are matched with each other.

3. A paint spraying apparatus for profiled steel pipes as claimed in claim 1 wherein: the fixing assembly comprises second guide circular plates (4) which are symmetrically distributed, the second guide circular plates (4) which are symmetrically distributed are respectively and slidably connected to two sides of the first threaded rod (2), first sliding blocks (401) which are consistent with the number of the sides of the special-shaped steel pipes are connected to the opposite side sliding of the second guide circular plates (4) which are symmetrically distributed, guide rods (402) are fixedly connected to the first sliding blocks (401), clamping blocks (403) are fixedly connected to one sides, far away from the first sliding blocks (401), of the guide rods (402), and the sleeve rods (307) are provided with extrusion assemblies used for driving the clamping blocks (403) to clamp the sides of the special-shaped steel pipes.

4. A paint spraying apparatus for profiled steel pipes as claimed in claim 3 wherein: the extrusion assembly comprises symmetrically distributed third guide circular plates (5), the symmetrically distributed third guide circular plates (5) are respectively and slidably connected to two sides of the loop bar (307), the paint box (301) is located between the symmetrically distributed third guide circular plates (5), the symmetrically distributed third guide circular plates (5) are located between the symmetrically distributed second guide circular plates (4), the third guide circular plates (5) are rotationally connected with adjacent second guide circular plates (4), the guide bars (402) are slidably connected with the adjacent third guide circular plates (5), the opposite sides of the base (1) are fixedly connected with electric push rods (501), the telescopic rods of the electric push rods (501) are connected with the adjacent second guide circular plates (4), the rotating columns (502) are rotationally matched with the adjacent second guide circular plates (4), the rotating columns (403) are close to the adjacent rotating columns (502), and the adjacent fourth guide circular plates (503) are fixedly connected with the adjacent guide circular plates (503), and the adjacent fourth guide circular plates (403) are fixedly connected with the adjacent guide blocks (503).

5. A paint spraying apparatus for profiled steel pipes as claimed in claim 4 wherein: the rotary column (502) is provided with an arc chute, and an arc protrusion matched with the arc chute of the rotary column (502) is arranged in the third guide circular plate (5).

6. A paint spraying apparatus for profiled steel pipes as claimed in claim 5 wherein: the third guide circular plate (5) is provided with an arc-shaped groove extending from the outer side to the inner side, and the guide rod (402) slides along the arc-shaped groove.

7. A paint spraying apparatus for profiled steel pipes as claimed in claim 1 wherein: the power assembly comprises a supporting plate (6), the supporting plate (6) is connected to the base (1) on one side in a sliding mode, the supporting plate (6) is connected with a first motor (601) in a rotating mode, an output shaft of the first motor (601) is fixedly connected with a first friction wheel (602), the base (1) of the supporting plate (6) is arranged to be connected with a second friction wheel (603) in a rotating mode, the first friction wheel (602) is in transmission fit with the second friction wheel (603), and a gear transmission assembly used for driving the first threaded rod (2) to rotate is arranged between the second friction wheel (603) and the first threaded rod (2).

8. A paint spraying apparatus for profiled steel pipes as claimed in claim 7 wherein: the first friction wheel (602) is in a round table shape, and one side of the first friction wheel (602) with a larger diameter is close to the first motor (601).

9. A paint spraying apparatus for profiled steel pipes as claimed in claim 1 wherein: the steel pipe support device comprises a base plate (7), the base plate (7) is located between the bases (1) and symmetrically arranged, a second motor (701) is fixedly connected to the base plate (7), a second threaded rod (702) is rotatably connected to the base plate (7), an output shaft of the second motor (701) and the second threaded rod (702) are in transmission through a gear set, a second sliding rod (703) is fixedly connected to one side, away from the second threaded rod (702), of the base plate (7), a sliding plate (704) is slidably connected to the second sliding rod (703), the sliding plate (704) is in threaded connection with the second threaded rod (702), a symmetrically distributed telescopic block (705) is slidably arranged on the sliding plate (704), a first supporting frame (706) is fixedly connected to a telescopic end of the telescopic block (705), a second supporting frame (707) is slidably connected to the telescopic block (705), a third threaded rod (708) is fixedly connected to one side, opposite to the second supporting frame (707), and the third threaded rod (708) is rotatably connected to the first supporting frame (706).

10. A paint spraying apparatus for profiled steel pipes as claimed in claim 9 wherein: still including being used for adjusting spraying frame (3) moving speed's adjusting part, adjusting part is including second slider (8), second slider (8) rotate connect in loop bar (307) be close to one side of first motor (601), be close to bottom plate (7) sliding connection of first motor (601) have third support frame (801), third support frame (801) with second slider (8) sliding connection, third support frame (801) are close to one side threaded connection of backup pad (6) has fourth threaded rod (802), fourth threaded rod (802) with backup pad (6) rotate to be connected.