Paint repairing device for scaffold pipe

Abstract

The invention discloses a scaffold pipe paint repairing device which comprises a positioning frame used for clamping a pipe body and a painting device used for painting the surface of the pipe body, the positioning frame comprises a rotating disc, a plurality of through holes are distributed in the circumferential direction of the rotating disc, positioning sleeves are rotatably connected in the through holes, telescopic rods slidably penetrate through the positioning sleeves, and the telescopic rods penetrate through the rotating disc. And a chuck for fixing the end part of the pipe body is arranged between the first end part of the telescopic rod and the end part of the positioning sleeve. According to the paint repairing device, a plurality of pipe bodies can be rapidly clamped at the same time through cooperation of the positioning sleeve and the telescopic rod, the positions and the relative rotation speed of the pipe bodies relative to the paint brush can be conveniently adjusted through rotation cooperation of the telescopic rod and the rotating disc, and therefore convenient paint repairing of the pipe bodies can be achieved according to the paint repairing requirement; the rotating disc is matched with the two sliding grooves in the positioning disc, the radial distance between the pipe body and the paint brush is conveniently controlled through relative rotation of the rotating disc and the positioning disc, and therefore the paint repairing device is suitable for paint repairing of pipe bodies with different thicknesses.

Description

Technical Field

[0001] The invention relates to the technical field of scaffolding pipes, and in particular to a scaffolding pipe paint touch-up device. Background Art

[0002] Scaffolding pipes are common auxiliary materials in the construction of the petrochemical industry and are essential auxiliary materials in the process of high-altitude construction. Scaffolding pipes are mostly carbon pipes, and scaffolding pipes are prone to bumps and friction during use and transportation. Scaffolding pipes need to be regularly maintained for corrosion protection, and painting scaffolding pipes is the most common and economical way to protect them. The traditional way of repainting is to place the pipe body on the bracket and then manually paint the position that needs to be repainted, which has high labor costs and low efficiency. Summary of the invention

[0003] In order to solve the problem of low efficiency of repainting scaffolding pipes, the present invention provides a scaffolding pipe repainting device, which can quickly repaint scaffolding pipes in batches by using mechanical equipment.

[0004] The technical solution adopted by the present invention is to design a scaffolding tube paint touch-up device, including a positioning frame for clamping a tube body and a painting device for painting the surface of the tube body, the positioning frame including a turntable, the turntable having several through holes distributed circumferentially, a positioning sleeve rotatably connected in the through hole, a telescopic rod slidingly passing through the positioning sleeve, a chuck for fixing the end of the tube body is arranged between the first end of the telescopic rod and the end of the positioning sleeve, the telescopic rod is telescoped relative to the positioning sleeve so that the chuck clamps or releases the tube body, the telescopic rod is controlled to rotate by a first motor, the telescopic rod is controlled to telescope relative to the turntable by a telescopic mechanism, the turntable is controlled to rotate by a second motor, and the painting device includes a track arranged parallel to the length direction of the tube body and a paint brush moving along the track.

[0005] In some embodiments, the through hole is a first slide groove having a certain length in the radial direction of the turntable, and a radial moving device is provided between the telescopic rod and the second motor, and the radial moving device controls the telescopic rod to move in the radial direction of the turntable.

[0006] In some embodiments, the radial moving device includes a positioning plate coaxial with the turntable, and a radial second slide groove is arranged on the positioning plate. The telescopic rod slides through the second slide groove, and the second slide groove intersects with the first slide groove relative to the telescopic rod. An angle adjustment mechanism is arranged between the turntable and the positioning plate, and the angle adjustment mechanism controls the relative rotation angle of the turntable and the positioning plate around the axis.

[0007] In some embodiments, the telescopic rod is provided with limit stops that are locked on both sides of the second slide groove, and the telescopic mechanism is connected between the turntable and the positioning plate. The telescopic mechanism controls the distance between the turntable and the positioning plate, thereby controlling the chuck to clamp or release the tube body.

[0008] In some embodiments, the present invention further comprises a positioning rod radially arranged relative to the positioning plate, and the first motor is slidably arranged on the positioning rod.

[0009] In some embodiments, the telescopic mechanism is a telescopic cylinder, the positioning plate and the positioning rod are fixedly connected to the cylinder body of the telescopic cylinder, the piston of the telescopic cylinder is connected to the turntable, and the rotating shaft of the second motor is connected to the cylinder body of the telescopic cylinder.

[0010] In some embodiments, the chuck includes a first connecting rod circumferentially distributed at the end of the positioning sleeve and a second connecting rod circumferentially distributed at the end of the telescopic rod, one end of the first connecting rod is rotatably connected to the positioning sleeve and the other end is rotatably connected to the end of the second connecting rod, and the other end of the second connecting rod is rotatably connected to the telescopic rod.

[0011] In some embodiments, there are two positioning frames arranged opposite to each other, and at least one of the positioning frames is controlled by a moving mechanism to move in the length direction of the tube body.

[0012] In some embodiments, the positioning sleeve is provided with limit stops that are locked on both sides of the first sliding groove.

[0013] In some embodiments, a visual camera is further included to detect the surface of the tube body.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention utilizes the cooperation of the positioning sleeve and the telescopic rod to realize the simultaneous rapid clamping of multiple tubes, and utilizes the rotation cooperation of the telescopic rod and the turntable to conveniently adjust the position and relative rotation speed of the tube relative to the paint brush, so that the tube can be conveniently repainted according to the paint touch-up requirements, and utilizes the cooperation of the two slide grooves on the turntable and the positioning plate to conveniently control the radial distance of the tube from the paint brush through the relative rotation of the two, so that it is suitable for repainting tubes of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is described in detail below in conjunction with specific embodiments and drawings. In order to show details and facilitate understanding of its principles, it is not necessarily drawn to scale, and similar reference numerals may describe similar components in different views. The drawings generally illustrate the embodiments discussed herein by way of example and not limitation. Among them: Figure 12 is a schematic axial cross-sectional view of a paint touch-up device according to an embodiment of the present invention.

[0016] Figure 2 yes Figure 1 A magnified schematic diagram of point B in the middle.

[0017] Figure 3 yes Figure 2 Schematic diagram of the AA section in.

[0018] Figure 4 yes Figure 3 A schematic diagram of the telescopic rod moving radially inward after the rotating disk rotates to the right relative to the positioning disk.

[0019] In the figure, 1. turntable; 2. positioning sleeve; 3. telescopic rod; 4. first connecting rod; 5. second connecting rod; 6. first motor; 7. tube body; 8. track; 9. paint brush; 10. visual camera; 11. second motor; 12. first slide slot; 13. positioning plate; 14. second slide slot; 15. positioning rod; 16. telescopic cylinder; 17. moving mechanism; 18. angle adjustment mechanism; 19. telescopic device. DETAILED DESCRIPTION

[0020] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments, and the following embodiments do not limit the invention involved in the claims. In addition, all combinations of the features described in the embodiments are not necessarily required for the solutions of the invention.

[0021] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments. Example

[0022] like Figure 1 , 2 As shown in Figures 3 and 4, a scaffolding pipe paint touch-up device includes a positioning frame for clamping the pipe body and a painting device for painting the surface of the pipe body.

[0023] The positioning frame includes a turntable 1, which has several through holes distributed circumferentially. A positioning sleeve 2 is rotatably connected in the through hole, and the positioning sleeve is provided with a limit stopper that is locked on both sides of the first slide groove, so that the positioning sleeve can rotate around its own rotation axis relative to the through hole but cannot move relatively in the axial direction.

[0024] A telescopic rod 3 is slidably passed through the positioning sleeve, and the telescopic rod can be telescoped relative to the positioning sleeve in the axial direction.

[0025] A chuck for fixing the end of the tube body is provided between the first end of the telescopic rod and the end of the positioning sleeve. The telescopic rod is telescopic relative to the positioning sleeve so that the chuck clamps or releases the tube body. Specifically, the chuck includes a first connecting rod 4 circumferentially distributed at the end of the positioning sleeve and a second connecting rod 5 circumferentially distributed at the end of the telescopic rod. One end of the first connecting rod is rotatably connected to the positioning sleeve and the other end is rotatably connected to the end of the second connecting rod. The other end of the second connecting rod is rotatably connected to the telescopic rod. Each of the telescopic rods is controlled to rotate by a first motor 6. The telescopic rod is controlled to extend and retract relative to the turntable by a telescopic mechanism. The telescopic mechanism can be, for example, a telescopic control device such as a cylinder or an electric cylinder, as long as the telescopic rod can be extended and retracted relative to the positioning sleeve.

[0026] When the telescopic rod and the positioning sleeve move relative to each other, the connection between the first connecting rod and the second connecting rod becomes larger or smaller in the radial direction, that is, the chuck expands or shrinks in the radial direction. When the tube body needs to be fixed, the telescopic rod is first extended toward the tube body relative to the positioning sleeve, so that the chuck shrinks, and then the end of the tube body is sleeved on the chuck, and then the telescopic rod is retracted relative to the positioning sleeve, so that the chuck expands, so that the connection between the first connecting rod and the second connecting rod is pressed against the inner wall of the tube body, and the chuck is fixedly connected to the tube body under the action of friction, so that the first motor can drive the tube body 7 to rotate.

[0027] The painting device includes a track 8 arranged parallel to the length direction of the tube body and a paint brush 9 moving along the track, so that the paint brush moves to the position where paint touch-up is required, and when the tube body rotates, the paint brush contacts the paint brush to achieve paint touch-up at the position where paint touch-up is required. The paint brush can be supplied with paint liquid through an automatic paint supply device, and the paint brush can be controlled to move along the track by a transmission mechanism such as a linear motor and a conveyor belt. A visual camera 10 that can move along the track for detecting the surface of the tube body can also be arranged on the track, and the position of the tube body that needs paint touch-up can be quickly detected by image recognition, so that the paint brush can move to the radial corresponding position of the position, and then move to the position of the paint brush through the rotation and revolution of the tube body to touch up the paint.

[0028] The turntable is controlled to rotate by the second motor 11, thereby controlling all the tubes to revolve around the axis of the turntable. The first motor controls the speed of each tube around its own axis. The rotation and revolution are coordinated to adjust the speed of the tube relative to the paint brush, thereby controlling the area of ​​painting.

[0029] The through hole is a first slide groove 12 with a certain length in the radial direction of the turntable, and a radial moving device is arranged between the telescopic rod and the second motor, and the radial moving device controls the telescopic rod to move in the radial direction of the turntable. Specifically, the radial moving device of this embodiment includes a positioning plate 13 coaxial with the turntable, and a radial second slide groove 14 is arranged on the positioning plate, and the telescopic rod slides through the second slide groove, and the second slide groove crosses the first slide groove relative to the telescopic rod. An angle adjustment mechanism is arranged between the turntable and the positioning plate, and the angle adjustment mechanism 18 controls the relative rotation angle of the turntable and the positioning plate around the axis, that is, there is a certain angle between the length direction of the first slide groove and the radial direction of the turntable, and the length direction of the second slide groove is along the radial direction of the positioning plate, so the first slide groove and the second slide groove are crossed in the circumferential direction when viewed from the axial direction of the turntable, so that the telescopic rod is limited at the intersection of the first slide groove and the second slide groove, and cannot move radially and circumferentially. The angle adjustment mechanism can be, for example, a motor or other device that can control the rotation of the turntable relative to the speed positioning plate. When the turntable rotates relative to the positioning plate, the intersection position of the first slide groove and the second slide groove can be changed, and then the radial position of the telescopic rod can be changed, thereby changing the radial position of the tube body. When clamping tubes of different thicknesses, the surface of the tube body can always be in contact with the paint brush by adjusting the position of the telescopic rod.

[0030] The telescopic rod is provided with limit stops locked on both sides of the second slide groove to prevent the telescopic rod from axially moving relative to the positioning plate, so that the telescopic rod can be driven to move by the positioning plate, and the telescopic mechanism is connected between the rotating plate and the positioning plate, and the telescopic mechanism controls the distance between the rotating plate and the positioning plate, thereby controlling the chuck to clamp or release the tube body.

[0031] It also includes a positioning rod 15 radially arranged relative to the positioning plate, and the first motor is radially slidably arranged on the positioning rod, so that the first motor can move along the second slide groove in the radial direction of the positioning plate with the telescopic rod but cannot rotate relative to the positioning rod, so as to control the rotation of the telescopic rod relative to the positioning sleeve and control the rotation speed of the tube body.

[0032] The telescopic mechanism is a telescopic cylinder 16, such as a controllable telescopic device such as a pneumatic cylinder or an electric cylinder. The positioning plate and the positioning rod are fixedly connected to the cylinder body of the telescopic cylinder. The piston of the telescopic cylinder is connected to the turntable, so as to adjust the axial spacing between the turntable and the positioning plate, and then adjust the distance between the end of the sleeve and the telescopic rod, so as to adjust the expansion or contraction of the chuck to clamp or disengage the end of the tube body.

[0033] The rotating shaft of the second motor is connected to the cylinder body of the telescopic cylinder, thereby controlling the positioning plate to rotate together with the turntable, and then controlling all the tube bodies to rotate around the rotating shaft of the positioning plate. The rotation of the tube body around the rotating shaft of the positioning plate is equivalent to revolution, and the first motor controls the rotation of the tube body around its own rotating shaft, which is equivalent to rotation. By coordinating the speed of rotation and revolution, when the tube body rotates to the position of the paint brush, the position where paint needs to be touched up corresponds to the brush head of the paint brush, so that paint can be applied there. The rotation speed of the tube body relative to the paint brush can also be controlled to control the paint application area.

[0034] There are two positioning frames arranged opposite to each other, so that both ends of the tube body can be fixed by the positioning frames, so that the tube body can be clamped in a horizontal state. At least one of the positioning frames is controlled by a moving mechanism 17 to move in the length direction of the tube body. The moving mechanism is, for example, a cylinder, so as to adjust the spacing between the two positioning frames. When the tube body needs to be clamped, the two positioning frames can be moved away so that the tube body is located between the chucks of the two positioning frames, and then the two positioning frames are moved closer so that the two chucks are respectively inserted into the two ends of the tube body, and then the chucks are controlled to expand to achieve clamping and fixing of the two ends of the tube body. When the tube body needs to be removed after the paint is repaired, the chucks are loosened and the positioning frames are moved away to remove the tube body.

[0035] Several parallel tracks can be arranged around the positioning frame, and each track is provided with the paint brush so as to simultaneously touch up the paint for a plurality of the tubes. In addition, a telescopic device 19 can be arranged between the paint brush and the track to control the distance of the paint brush relative to the tube.

[0036] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described, or replace them in similar ways, without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A scaffolding pipe repainting device, comprising a positioning frame for clamping the pipe body and a painting device for painting the surface of the pipe body, characterized in that: The positioning frame includes a turntable with several through holes distributed circumferentially thereon, a positioning sleeve rotatably connected in the through hole, a telescopic rod slidingly passing through the positioning sleeve, a chuck for fixing the end of the tube body is arranged between the first end of the telescopic rod and the end of the positioning sleeve, the telescopic rod is telescoped relative to the positioning sleeve so that the chuck clamps or releases the tube body, the telescopic rod is controlled to rotate by a first motor, the telescopic rod is controlled to extend and retract relative to the turntable by a telescopic mechanism, the turntable is controlled to rotate by a second motor, and the painting device includes a track arranged parallel to the length direction of the tube body and a paint brush moving along the track.

2. The scaffolding tube paint touch-up device according to claim 1, characterized in that: The through hole is a first sliding groove having a certain length in the radial direction of the turntable. A radial moving device is provided between the telescopic rod and the second motor. The radial moving device controls the telescopic rod to move in the radial direction of the turntable.

3. The scaffolding tube paint touch-up device according to claim 2, characterized in that: The radial moving device includes a positioning plate coaxial with the turntable, a radial second slide groove is arranged on the positioning plate, the telescopic rod slides through the second slide groove, the second slide groove and the first slide groove intersect with the telescopic rod, an angle adjustment mechanism is arranged between the turntable and the positioning plate, and the angle adjustment mechanism controls the relative rotation angle of the turntable and the positioning plate around the axis.

4. The scaffolding tube paint touch-up device according to claim 3, characterized in that: The telescopic rod is provided with limit stops locked on both sides of the second slide groove, the telescopic mechanism is connected between the rotating disk and the positioning disk, and the telescopic mechanism controls the distance between the rotating disk and the positioning disk, thereby controlling the chuck to clamp or release the tube body.

5. The scaffolding tube paint touch-up device according to claim 4, characterized in that: It also includes a positioning rod radially arranged relative to the positioning plate, and the first motor is slidably arranged on the positioning rod.

6. The scaffolding tube paint touch-up device according to claim 5, characterized in that: The telescopic mechanism is a telescopic cylinder, the positioning plate and the positioning rod are fixedly connected to the cylinder body of the telescopic cylinder, the piston of the telescopic cylinder is connected to the rotating plate, and the rotating shaft of the second motor is connected to the cylinder body of the telescopic cylinder.

7. The scaffolding tube paint touch-up device according to claim 1, characterized in that: The chuck includes a first connecting rod circumferentially distributed at the end of the positioning sleeve and a second connecting rod circumferentially distributed at the end of the telescopic rod, one end of the first connecting rod is rotatably connected to the positioning sleeve and the other end is rotatably connected to the end of the second connecting rod, and the other end of the second connecting rod is rotatably connected to the telescopic rod.

8. The scaffolding tube paint touch-up device according to claim 1, characterized in that: There are two positioning frames arranged opposite to each other, and at least one of the positioning frames is controlled by a moving mechanism to move in the length direction of the tube body.

9. The scaffolding tube paint touch-up device according to claim 2, characterized in that: The positioning sleeve is provided with a limit stopper which is locked on both sides of the first sliding groove.

10. The scaffolding tube paint touch-up device according to claim 1, characterized in that: Also included is a visual camera for detecting the surface of the tube body.

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