CN212553210U - Steel pipe rust cleaning integrative device that sprays paint - Google Patents

Abstract

The utility model discloses a steel pipe rust removing and paint spraying integrated device, which comprises a workbench, and a first conveying seat, a second conveying seat, a rust removing mechanism, a third conveying seat, a paint spraying mechanism and a conveying device which are sequentially arranged on the workbench from left to right, wherein the steel pipe can sequentially pass through the first conveying seat, the second conveying seat, the rust removing mechanism, the third conveying seat, the paint spraying mechanism and the conveying device from left to right; the rust removing mechanism mainly comprises a rotary drum, a bearing base, an outer gear ring, a brush and a driving motor; the paint spraying mechanism mainly comprises a paint spraying box body, a filter cartridge, a paint spraying head, a paint storage box and a delivery pump. The utility model discloses an integrated design, not only easy operation, cost of labor are low, and the security is high moreover, work efficiency is high.

Description

An integrated device for steel pipe rust removal and painting

technical field

The utility model relates to a building material processing device, in particular to an integrated device for removing rust and painting a steel pipe.

Background technique

Steel pipes are an indispensable part of the structural support system and external maintenance structure in the field of construction production. However, due to the long-term storage of steel pipes on construction sites, rust will appear on the outer surface of the steel pipes; for production safety, it is often necessary to remove the steel pipes. Rust (clean up rust) and spray paint.

The traditional treatment method is that the operator removes the rust on the surface of the pipe by friction with a rust removal device (grinding wheel), and then the operator sprays the outer surface of the steel pipe with a painting equipment before it can be put into production. The whole process is not only heavy work and high cost, but also affected by the length of the pipe, the work efficiency is extremely low, and the weight of the pipe is heavy, which is not easy to place or arrange, and there is a greater safety hazard.

SUMMARY OF THE INVENTION

The purpose of this utility model is to: aiming at the above-mentioned deficiencies of the prior art, to provide an integrated device for steel pipe rust removal and painting with an integrated design, which is not only simple in operation, low in labor cost, but also high in safety and work efficiency.

The technical scheme adopted by the utility model is an integrated device for removing rust and painting for steel pipes, which is characterized in that: the integrated device includes a workbench and a first conveying seat and a second conveying seat that are sequentially arranged on the workbench from left to right , Derusting mechanism, third conveying seat, painting mechanism and conveying device, the steel pipe can pass through the first conveying seat, the second conveying seat, the derusting mechanism, the third conveying seat, the painting mechanism and the conveying device in order from left to right The rust removal mechanism is mainly composed of a rotating drum, a bearing, a bearing base, an outer gear ring, a brush and a driving motor, the rotating drum is arranged on the bearing base through the bearing, and the bearing base is fixedly connected to the On the worktable, the outer peripheral wall of the part of the drum located on the left side of the bearing base is provided with an external gear ring, and the brushes are multiple, and these brushes are evenly spaced along the circumferential direction of the drum. It is arranged on the inner peripheral wall surface of the rotating drum on the right side of the bearing base, and the diameter of the part of the rotating drum located on the right side of the bearing base gradually increases in the right direction, and the drive motor is fixedly connected to the bearing base. On the worktable, the output end of the drive motor is provided with a gear matching the outer ring gear, and the gear on the output end of the drive motor is meshed and connected with the outer ring gear on the outer peripheral wall of the drum to drive the outer ring gear. a driving motor, which drives the rotating drum to rotate, so that the brush inside the rotating drum rotates synchronously, so that the brush can continuously remove the rust on the outer peripheral wall of the steel pipe passing through the rotating drum; so The paint spraying mechanism is mainly composed of a paint spray box, a filter cartridge, a paint spray head and a delivery pump. The paint spray box has an inner cavity, and the left and right end surfaces are respectively provided with a left through hole communicating with the inner cavity, and a left through hole communicating with the inner cavity. The inner cavity is connected to a right through hole, and the left through hole and the right through hole are symmetrical to each other. The filter cartridge is a through-hole structure, and a plurality of filter holes are evenly arranged on the outer peripheral wall. The left port of the filter cartridge is connected to the The left through hole is in communication, the right port is in communication with the right through hole, and the center lines of the left through hole of the paint spraying box, the filter cartridge, and the right through hole of the spraying box are coincident with each other, and the spray painting There are multiple heads, which are arranged in the inner cavity of the paint spraying box, and these paint spraying heads are evenly surrounded outside the filter cartridge along the circumferential direction of the filter cartridge, and are also installed on the lower surface of the workbench. There is the paint storage box, the paint storage box is used for storing paint, the input port of the delivery pump is communicated with the paint storage box, the output ports are respectively communicated with the paint spraying head, and the steel pipes can be arranged from left to right. Passing through the left through hole of the paint spray box, the filter cartridge, and the right through hole of the paint spray box, when the transfer pump is turned on, the transfer pump transfers the paint in the paint storage box to the The paint is sprayed out through the paint spraying head, filtered by the filter cartridge, and finally sprayed onto the steel pipe passing through the paint spraying mechanism in sequence.

The first conveying seat, the second conveying seat, and the third conveying seat all include a "П" type bracket, an upper rotating shaft, a lower rotating shaft, a first bearing, a second bearing, a first roller, a second roller and Synchronous motor, the bottom of the "П" type bracket is fixedly connected to the workbench, and an upper layer rotating shaft and a lower layer rotating shaft are respectively provided in the "П" type bracket from top to bottom, and the two The ends are respectively installed on the corresponding "П" type brackets through the first bearing, a first roller is arranged at the middle position of the upper rotating shaft, and the two ends of the lower rotating shaft are respectively installed on the corresponding "П" type through the second bearing. On the bracket, a second roller is arranged at the middle position of the lower shaft, and one end of the lower shaft extends out of the corresponding bearing on the "П" type bracket, and the shaft part extending out of the bearing is fixedly connected to the workbench. The synchronous motor is connected, and the first roller and the second roller are aligned up and down, and a space area is formed between the first roller and the second roller that clamps the steel pipe and drives the steel pipe to move to the right direction, and drives the The synchronous motor drives the lower shaft to rotate, and at the same time the second roller on the lower shaft rotates synchronously, so that the steel pipe clamped between the first roller and the second roller can turn to the right move.

Further, a guide cylinder is provided on the inner peripheral wall of the rotating cylinder between the bearing base and the brush, the diameter of the guide cylinder gradually decreases from left to right, and the maximum diameter of the left end of the guide cylinder is The value is equal to the inner diameter value of the rotating cylinder corresponding to the left end of the guide cylinder, and the minimum diameter value of the right end is greater than the inner diameter value surrounded by a plurality of the brushes.

The conveying device is mainly composed of a support frame and a pulley, the support frame is in the shape of "П", and a pulley is evenly and rotatably arranged on the upper surface.

The distance between the first conveying seat and the second conveying seat is equal to the distance between the rust removing mechanism and the third conveying seat.

The bottom of the paint spraying box is provided with a return port, and the return port is communicated with the paint storage box.

Further, a three-way valve is provided on the communication pipeline between the return port of the paint spraying box and the paint storage box, for the return port of the paint spraying box to be switched to communicate with the paint storage box, or to communicate with the paint storage box. The paint spraying box body communicates with the outside.

The beneficial effects of the utility model are as follows: the utility model adopts an integrated design, which not only has simple operation, low labor cost, but also high safety and high work efficiency.

Description of drawings

The utility model will be further described below in conjunction with the accompanying drawings.

Figure 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic structural diagram of the rust removal mechanism in FIG. 1 .

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 .

FIG. 4 is a B-B sectional view of FIG. 2 .

FIG. 5 is a schematic structural diagram of the paint spraying mechanism in FIG. 1 .

FIG. 6 is a schematic structural diagram of the filter cartridge in FIG. 5 .

FIG. 7 is a left side view of the first conveying seat in FIG. 1 .

FIG. 8 is a left side view of the second conveying seat in FIG. 1 .

FIG. 9 is a left side view of the third conveying seat in FIG. 1 .

The meaning of the code in the figure: 1—workbench; 2—first conveying seat; 21—“П” bracket; 22—upper shaft; 23—lower shaft; 24—first bearing; 25—second bearing; 26—first shaft 1 roller; 27—second roller; 28—synchronous motor; 3—second conveying seat; 31—“П” bracket; 32—upper shaft; 33—lower shaft; 34—first bearing; 35—second bearing ;36—first roller; 37—second roller; 38—synchronous motor; 4—rust removal mechanism; 41—rotating drum; 42—bearing; 43—bearing base; 44—external ring gear; 45—bristle brush; 46 - Guide cylinder; 5 - Third conveying seat; 51 - "П" type bracket; 52 - upper shaft; 53 - lower shaft; 54 - first bearing; 55 - second bearing; 56 - first roller; 57 - first Two rollers; 58-synchronous motor; 6-painting mechanism; 61-painting box; 611-return port; 62-filter cartridge; 621-filter hole; 63-painting head; 631-first bracket; 64-second bracket ; 7—conveying device; 71—support frame; 72—pulley; 8—paint storage box; 9—steel pipe.

Detailed ways

Referring to Figures 1 to 9: the present utility model is an integrated device for removing rust and painting for steel pipes, and the integrated device comprises a workbench 1 (the workbench 1 is in a "П" type structure, and the left and right ends ( The supporting feet) can be fixed on the operation site [the workshop for rust removal and painting, or the workshop for rust removal and painting, etc.], or they can be directly placed on the operation site) and arranged on the workbench 1 from left to right. The first conveying seat 2, the second conveying seat 3, the rust removing mechanism 4, the third conveying seat 5, the painting mechanism 6 and the conveying device 7,

The steel pipe 9 can pass through the first conveying seat 2, the second conveying seat 3, the rust removing mechanism 4, the third conveying seat 5, the painting mechanism 6 and the conveying device 7 in sequence from left to right (the first conveying seat 2, the Two conveying seat 3, rust removing mechanism 4, third conveying seat 5, and the channel of painting mechanism 6 [the channel is used for the passage of steel pipe 9] center lines are overlapped together); wherein,

The rust removal mechanism 4 is mainly composed of a rotating drum 41, a bearing 42, a bearing base 43, an outer gear ring 44, a brush 45 and a drive motor.

The rotating drum 41 is arranged on the bearing base 43 through the bearing 42, the bearing base 43 is provided with a horizontal through hole, the outer ring of the bearing 42 is welded to the inner wall surface of the through hole of the bearing base 43, and the inner ring It is welded and connected to the outer peripheral wall of the rotating drum 41 . The bearing base 43 is fixedly connected to the workbench 1 (it can be a welded connection, or an anchor bolt is provided on the upper surface of the workbench 1, and a matching ground is set around the bottom of the bearing base 43. The outer peripheral wall of the part of the rotating drum 41 located on the left side of the bearing base 43 is provided with an outer gear ring 44, and the outer gear ring 44 is close to and fits with the bearing base 43. A portion (inner ring) of the drum 41 is welded to the outer peripheral wall surface of the rotating drum 41 .

There are a plurality of the brushes 45, and these brushes 45 are arranged on the inner peripheral wall surface of the rotating drum 41 on the right side of the bearing base 43 along the circumferential direction of the rotating drum 41 at even intervals (so as to facilitate the Between two adjacent brushes 45, there is a passage for the rust removed on the steel pipe 9 to pass or be discharged), and the brushes 45 heads of these brushes 45 are fully and fully in contact with the outer peripheral wall of the steel pipe 9, and The friction force for removing rust can be generated at the contact point, and the part of the drum 41 located on the right side of the bearing base 43 gradually increases in diameter toward the right side. The advantage of this design is that the brush 45 is The rust cleaned on the outer peripheral wall of the steel pipe 9 can be discharged from the right port of the drum 41 to the outside of the integrated device under the action of the centrifugal force generated by the rotation of the drum 41 . In operation, it is only necessary to clean the discharged rust in time to avoid excessive accumulation and blockage of the integrated device.

The drive motor is fixedly connected (welded) on the workbench 1 (on the upper surface of the workbench 1 ). The output end of the drive motor is provided with a gear matching the outer ring gear 44 . The output end of the drive motor The gear on the rotary drum 41 is meshed with the outer ring gear 44 on the outer peripheral wall of the drum 41 to drive the drive motor, which drives the drum 41 to rotate (through the gear and the outer ring gear 44 ), so that the The brush 45 inside the rotating drum 41 rotates synchronously, so that the brush 45 can continuously remove the rust on the outer peripheral wall of the steel pipe 9 passing through the rotating drum 41 .

The paint spraying mechanism 6 is mainly composed of a paint spraying box 61, a filter cartridge 62, a paint spraying head 63 and a conveying pump.

The paint spraying box 61 has an inner cavity, and the left and right end surfaces are respectively provided with a left through hole communicating with the inner cavity and a right through hole communicating with the inner cavity, and the left through hole and the right through hole are respectively opened. The holes are symmetrical to each other and are on the same level,

The filter cartridge 62 is a through-hole structure with openings at the left and right ends. A plurality of filter holes 621 are evenly arranged on the outer peripheral wall. The diameter of the filter holes 621 is 2mm to 3mm. The left through hole of the paint spraying box 61 is connected to the left through hole, the right port is connected to the right through hole of the paint spraying box 61, and the left through hole of the painting box 61, the filter cartridge 62, and the right through hole of the painting box The centerlines of the holes coincide with each other,

The filter cartridge 62 is welded in the paint spraying box 61 through the second bracket 64 , and the steel pipe 9 passes through the filter cartridge 62 when passing through the paint spraying mechanism 6 .

There are multiple paint spray heads 63 (in this embodiment, there are four paint spray heads 63 ), which are arranged in the inner cavity of the paint spray box body 61 , and the paint spray heads 63 are welded to the paint spray box body 61 through the bracket 631 . In the inner cavity of the filter cartridge 62, other methods can also be used, for example, clamps, and the paint spray heads 63 are evenly surrounded outside the filter cartridge 62 along the circumferential direction of the filter cartridge 62 (the paint spray heads 63 The nozzle opening of the filter cartridge 62 may abut on the outer peripheral wall surface of the filter cartridge 62, or there may be a distance of 5-10 mm from the outer peripheral wall surface of the filter cartridge 62),

The paint storage box 8 is also installed on the lower surface of the workbench 1 . In this embodiment, the paint storage box 8 is welded on the lower surface of the workbench 1 . The paint storage box 8 is used to store paint, the input port of the delivery pump is communicated with the paint storage box 8 through a delivery pipe, and the output port is communicated with the paint spray head 63 through a delivery pipe, respectively.

The steel pipe 9 can pass through the left through hole of the paint spraying box 61 , the filter cartridge 62 and the right through hole of the painting box 61 in sequence from left to right,

When the transfer pump is turned on, the transfer pump transfers the paint in the paint storage box 8 to the paint spraying head 63, and sprays the paint through the paint spraying head 63, and is filtered through the filter cartridge 62 (to ensure uniform spraying). ), the paint is finally sprayed to the paint that passes through the paint spraying mechanism 6 in sequence (meaning that it can pass through the left through hole of the paint spray box 61, the filter cartridge 62, and the right through hole of the paint spray box 61 in sequence). on the steel pipe 9.

Referring to Figures 8 and 9: the first conveying seat 2, the second conveying seat 3, and the third conveying seat 5 all include "П"-shaped brackets (21, 31, 51), upper rotating shafts ( 22, 32, 52), lower shafts (23, 33, 53), first bearings (24, 34, 54), second bearings (25, 35, 55), first rollers (26, 36, 56), Second rollers (27, 37, 57) and synchronous motors (28, 38, 58),

The bottom of the "П" type bracket (21, 31, 51) is fixedly connected to the workbench 1, and an upper layer is respectively provided in the "П" type bracket (21, 31, 51) from top to bottom. The rotating shafts (22, 32, 52) and a lower rotating shaft (23, 33, 53), the two ends of the upper rotating shaft (22, 32, 52) are respectively installed on the corresponding On the "П" type brackets (21, 31, 51), a first roller (26, 36, 56) is arranged at the middle position of the upper shaft (22, 32, 52), and the lower shaft (23, 33, The two ends of 53) are respectively installed on the corresponding "П" brackets (21, 31, 51) through the second bearings (25, 35, 55), and the middle position of the lower shaft (23, 33, 53) is set A second roller (27, 37, 57), one end of the lower shaft (23, 33, 53) extends out of the corresponding bearing on the "П" bracket (21, 31, 51), and extends out of the shaft part of the bearing It is connected with the synchronous motor (28, 38, 58) fixedly connected to the table 1, and the first roller (26, 36, 56) and the second roller (27, 37, 57) are aligned up and down , a space area is formed between the first roller (26, 36, 56) and the second roller (27, 37, 57) that clamps the steel pipe 9 and drives the steel pipe 9 to move to the right direction,

The synchronous motor (28, 38, 58) is driven, and the synchronous motor (28, 38, 58) drives the lower shaft (23, 33, 53) to rotate, and the The second rollers (27, 37, 57) rotate synchronously, so that the steel pipe 9 clamped between the first rollers (26, 36, 56) and the second rollers (27, 37, 57) can move toward the Move in the right direction. In this embodiment, a synchronous motor (28, 38, 58) corresponding to the first conveying seat 2, the second conveying seat 3, and the third conveying seat 5 is driven simultaneously and synchronously. The first conveying base 2 , the second conveying base 3 and the third conveying base 5 act on the steel pipe 9 together and synchronously, so that the steel pipe 9 moves to the right.

A guide cylinder 46 is provided on the inner peripheral wall of the rotating cylinder 41 between the bearing base 43 and the brush 45 , and the guide cylinder 46 is made of a flexible material. For example, rubber. The diameter of the guide cylinder 46 gradually decreases from left to right, the maximum diameter value of the left end of the guide cylinder 46 is equal to the inner diameter value of the rotating cylinder 41 corresponding to the left end of the guide cylinder 46, and the minimum diameter value of the right end is greater than a plurality of The value of the inner diameter enclosed by the brush 45 .

Further, the above-mentioned conveying device 7 is mainly composed of a support frame 71 and a pulley 72. The support frame 71 is in the shape of "П", and the pulley 72 is evenly and rotatably provided on the upper surface. The conveying device 7 is an existing mature technology.

Further, the distance between the first conveying base 2 and the second conveying base 3 is equal to the distance between the descaling mechanism 4 and the third conveying base 5 .

The bottom of the paint spray box 61 is provided with a return port 611 (the return port 611 communicates with the inner cavity of the paint spray box 61 ), and the return port 611 communicates with the paint storage box 8 . A part of the paint sprayed by the paint spraying head 63 acts on the steel pipe 9 , and the other part flows back to the paint storage box 8 along with the return port 611 .

Further, a three-way valve is provided on the communication pipeline between the return port 611 of the paint spraying box 61 and the paint storage box 8, so that the return port 611 of the paint spraying box 61 is switched to be connected to the paint storage box. 8 is communicated with, or communicated with the outside of the paint spraying box 61 . When cleaning the inner cavity of the painting box 61, the three-way valve is switched to the return port 611 of the painting box 61 to communicate with the outside of the painting box 61, and then pass through the multi-channel set on the top of the painting box 61. A cleaning hole (the cleaning hole communicates with the inner cavity of the paint spraying box 61 ) and the left through holes and the right through holes of the painting box 61 , and the paint cleaning agent ( The paint cleaning agent can be pressurized and then input into the inner cavity of the paint spraying box 61 ), and the cleaned liquid flows to the outside of the spraying box 61 through the return port 611 of the painting box 61, and is collected and processed manually .

In addition, the above-mentioned drive motor, the above-mentioned synchronous motor (28, 38, 58) and the above-mentioned delivery pump (including the delivery pipe) are not shown (omitted) in FIG. 1, but those skilled in the art should know that these contents are Existing mature technology. The steel pipe rust removal and painting integrated device is provided with many models, and each model is matched with a steel pipe 9 corresponding to one model and size. A drying device is also arranged between the paint spraying structure 6 and the conveying device 7 . For example, a fan is provided on the outside of the paint spraying box 61 between the paint spraying structure 6 and the conveying device 7 .

The above specific technical solutions are only used to illustrate the present invention, but not to limit it. Although the present utility model has been described in detail with reference to the above-mentioned specific technical solutions, those of ordinary skill in the art should understand that: it can still modify the above-mentioned specific technical solutions, or perform equivalent replacements to some of its technical features; and these modifications or replacements , does not make the essence of the corresponding technical solution depart from the spirit and scope of the present invention.

Claims (7)

1. A steel pipe derusting and painting integrated device, characterized in that: the integrated device comprises a workbench and a first conveying seat, a second conveying seat, a rust removing mechanism, a third conveying seat, a second conveying seat, a third Conveyor seat, painting mechanism and conveying device, The steel pipe can pass through the first conveying seat, the second conveying seat, the rust removing mechanism, the third conveying seat, the painting mechanism and the conveying device in sequence from left to right; wherein, The derusting mechanism is mainly composed of a rotating drum, a bearing, a bearing base, an outer gear ring, a brush and a driving motor. The rotating drum is arranged on the bearing base through a bearing, the bearing base is fixedly connected to the worktable, and an outer gear ring is arranged on the outer peripheral wall of the part of the rotating drum located on the left side of the bearing base, There are a plurality of the brushes, and these brushes are arranged on the inner peripheral wall surface of the rotating cylinder located on the right side of the bearing base along the circumferential direction of the rotating cylinder at even intervals, and the rotating cylinder is located on the The right part of the bearing base gradually increases in diameter to the right, The drive motor is fixedly connected to the worktable, the output end of the drive motor is provided with a gear matching the outer ring gear, and the gear on the output end of the drive motor is connected with the outer teeth on the outer peripheral wall of the drum. Ring engagement connection, The drive motor is driven, and the drive motor drives the rotating drum to rotate, so that the brush inside the rotating drum rotates synchronously, so that the brush can continuously remove the debris on the outer peripheral wall of the steel pipe passing through the rotating drum. rust; The paint spraying mechanism is mainly composed of a paint spray box, a filter cartridge, a paint spray head and a conveying pump. The paint spraying box has an inner cavity, and the left and right end surfaces are respectively provided with a left through hole communicating with the inner cavity and a right through hole communicating with the inner cavity, and the left through hole and the right through hole are respectively opened. symmetrical to each other, The filter cartridge has a through-hole structure, and a plurality of filter holes are evenly arranged on the outer peripheral wall. The left port of the filter cartridge is communicated with the left through hole, the right port is communicated with the right through hole, and the paint spraying box body The centerlines of the left through hole, the filter cartridge, and the right through hole of the paint spraying box coincide with each other, There are multiple paint spray heads, which are arranged in the inner cavity of the paint spray box, and these paint spray heads are evenly surrounded outside the filter cartridge along the circumferential direction of the filter cartridge, A paint storage box is also installed on the lower surface of the workbench, and the paint storage box is used for storing paint. The input port of the conveying pump is communicated with the paint storage box, and the output ports are respectively communicated with the paint spraying head. The steel pipe can pass through the left through hole of the painting box, the filter cartridge, and the right through hole of the painting box in sequence from left to right, When the transfer pump is turned on, the transfer pump transfers the paint in the paint storage box to the paint spray head, and sprays the paint through the paint spray head. After being filtered by the filter cartridge, the paint is finally sprayed to the paint spraying on the steel pipe passing through the painting mechanism. 2. The integrated device for removing rust and painting for steel pipes according to claim 1, characterized in that: the first conveying seat, the second conveying seat, and the third conveying seat all comprise a "П" type bracket, an upper rotating shaft, The lower shaft, the first bearing, the second bearing, the first roller, the second roller and the synchronous motor, The bottom of the described "П" type bracket is fixedly connected on the workbench, and an upper layer rotating shaft and a lower layer rotating shaft are respectively provided in the "П" type bracket from top to bottom, and the two ends of the upper layer rotating shaft pass through respectively. The first bearing is installed on the corresponding "П" type bracket, a first roller is arranged at the middle position of the upper rotating shaft, and the two ends of the lower rotating shaft are respectively installed on the corresponding "П" type bracket through the second bearing, A second roller is arranged at the middle position of the lower shaft, one end of the lower shaft extends out of the corresponding bearing on the "П" type bracket, and the shaft part extending out of the bearing is connected to the synchronous motor fixedly connected to the worktable , and the first roller and the second roller are aligned up and down, and a space area that clamps the steel pipe and drives the steel pipe to the right direction is formed between the first roller and the second roller. The synchronous motor is driven, and the synchronous motor drives the lower shaft to rotate, and at the same time, the second roller on the lower shaft rotates synchronously, so that the steel pipe clamped between the first roller and the second roller can move toward the lower shaft. Move in the right direction. 3. The integrated device for removing rust and painting for steel pipes according to claim 1, characterized in that: a guide cylinder is provided on the inner peripheral wall of the rotating cylinder between the bearing base and the brush, and the guide cylinder extends from The diameter from left to right gradually decreases, the maximum diameter value of the left end of the guide cylinder is equal to the inner diameter value of the rotating cylinder corresponding to the left end of the guide cylinder, and the minimum diameter value of the right end is greater than the inner diameter value enclosed by a plurality of the brushes . 4. The integrated device for removing rust and painting for steel pipes according to claim 1, is characterized in that: the conveying device is mainly composed of a support frame and a pulley, and the support frame is in the shape of "П", and the upper surface is evenly and rotatably provided with pulleys . 5 . The integrated device for removing rust and painting for steel pipes according to claim 1 , wherein the distance between the first conveying seat and the second conveying seat is equal to the distance between the derusting mechanism and the third conveying seat. 6 . distance between. 6 . The integrated device for removing rust and painting for steel pipes according to claim 1 , wherein the bottom of the painting box is provided with a return port, and the return port is communicated with the paint storage box. 7 . 7 . The integrated device for removing rust and painting for steel pipes according to claim 6 , wherein a three-way valve is provided on the communication pipe between the return port of the paint spraying box and the paint storage box, which is used for the paint spraying box. 8 . The return port of the body is switched to communicate with the paint storage box, or communicate with the outside of the paint spraying box.

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