JPS59139961A - Coater for cylindrical long body - Google Patents

Abstract

PURPOSE:To contrive the performance of automatic coating and the formation of a uniform coating layer, by extending a cylindrical long body between the upper and lower openings of a casing, providing a plurality of rotatable coating roller brushes in contact with the periphery of said long body, and moving the roller brushes along the long body. CONSTITUTION:A cylindrical long body A is extended through domain 5 between the openings 3, 4 of a casing 1, a plurality of roller brushes 6 are provided in contact with said long body A with the same inclination angle against each other and rotatably supported with a holding means 7, their one ends are connected to flexible joints 9 by universal joints 8, and worm gears 12 at the ends of the joints 9 are driven through a worm shaft 11 by a motor 10. Thereafter, the casing 1 is moved upwards by a hoisting means 23 and ropes 22, paint is sent from a paint reservoir 15 through hoses 14 to the brushes 6, the brushes 6 are rotationally driven, the workpiece A being coated with the paint is guided by rollers 20, the paint is sealed with a member 19, and then the casing 1 is lowered. Hence, a uniform coating layer can be efficiently applied onto the long workpiece to be coated having much ruggedness.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for coating long rod-like objects such as pipes and stretched ropes.

There are many long rod-like objects that extend vertically in outdoor structures.
It can also be used as a structural component. Such long objects are often coated on the outside for corrosion protection and other reasons.

Painting is mostly done on-site, not only for repairs but also for new structures, in order to avoid damage from handling during construction. Traditionally, this type of painting work was done by hand with a brush. This was done by painting or airless spraying, which caused the following problems.

(1) Since the work will be carried out at the tube station, the assembly of scaffolding,
There is a danger of workers falling and scaffolding falling during dismantling and moving.

(2) Is there only one worker who is skilled in the work at the place? However, the efficiency is low.

(3) It is difficult to uniformly coat a long object with many uneven surfaces, such as a wire lobe having spiral grooves 2, over the entire surface.

(4) Painting is often done in the open, causing paint droplets to scatter around and even fall, causing environmental pollution.

In view of the above-mentioned conventional techniques, the present invention aims to automate the above-mentioned painting process to improve efficiency (forming a uniform coating layer sound and further preventing environmental pollution around the painting site).
For this purpose, openings are provided in the upper and lower parts of the casing through which a rod-shaped long object to be coated can pass, and in the caning there is provided an area around the area between the upper and lower openings. A plurality of roller brushes are provided facing the area, and the roller brushes are rotatable and each roller brush is connected to a means for supplying paint to the brushes. A falling paint reservoir is formed in the casing, and a sealing member corresponding to the cross-sectional shape of the long object to be coated is attached above the lower opening of the casing. This is achieved by the device according to the invention, characterized in that means are provided for movement along yaI'.

Hereinafter, the present invention will be explained in more detail based on the drawings.

FIG. 1 is a longitudinal cross-sectional view of the coating apparatus of the present invention, and FIG. 2 is a partial cross-sectional view thereof. 1 is a casing, which is usually cylindrical or polygonal. The material of casing 1 is %
However, suitable materials such as steel, stainless steel, aluminum alloy, fiber reinforced plastic, etc. can be used.

The casing 1 may be reinforced with appropriate members. Further, the casing 1 may be provided with an observation window made of transparent glass, plastic, etc. so that the coating state can be observed. Openings 3 and 4 are provided in the upper and lower parts of the casing 1, through which the elongated object A can pass.

Furthermore, an opening 3 through which a long object passes is provided inside the casing 1.
A plurality of roller brushes 6 are arranged around the area 5 between and 4.
is provided. The brush 6 is arranged so that its bristles face the opening area 5. roller brush 6
Preferably, three or more are arranged around the opening area 5 at equal angles to each other so that the entire outer surface of the long object to be coated can be uniformly coated. In this arrangement, it is not necessary that all roller brushes 6 be located at the same height, but may be located at different heights as shown in FIG. Both ends are rotatably held, and holding means 1 for this purpose is provided inside the casing 1. Each brush 6
A flexible shaft 9 is connected to one end of the rotating shaft by a universal joint 8. On the other hand, an electric motor 10 is fixed to the outside of the lower part of the casing 1, and the motor 1o is connected to a worm shaft 11.

As shown in FIG. 3, a worm gear 12 is fixed to the other end of the flexible shaft 9 connected to each of the brushes 6, and the worm gear 12 is of course engaged with the worm shaft 11. In the case shown, these are connected to one worm shaft 11.

The rotating shaft of the roller brush 60 in the device of the present invention can be set to a desired inclination by appropriate means. By setting the upper and lower tfKjY, a desired inclination angle can be given to the rotation axis of the roller brush 6. A hose 14 serving as paint supply means is connected to the end of the rotating shaft of the roller brush 6 that is not connected to the flexible shaft through a rotary joint 13.

The rotary shaft of the roller plan 60 has a passage formed therein which leads to the bristles of the paint brush supplied from the hose 14. A paint reservoir 15 is formed in the lower part of the casing 1 for storing fallen paint that has not been applied to the object to be coated. A pipe 16 for removing the accumulated paint is connected to the paint reservoir 15. On the other hand, a pump 1T is fixed outside the lower part of the casing 1, and the pipe 16 is connected to an inlet of this pump 179. A pipe 18 is connected to the discharge port of the pump 11, and the pipe 18 can be connected to the paint supply hose 14 as required. A sealing member 19 is attached above the lower fA opening 4 of the casing 1 . The sealing member 19 has an opening that corresponds to the cross-sectional shape and size of the long object to be coated ◎ Note that correspondence here does not necessarily mean that the dimensions are exactly the same, but when the long object A passes through. This includes all cases where the shape and dimensions are sufficient to provide an effective paint sealing action. The seal member 19 can be composed of a rubber seal 19α and a brush seal 19t5.

A roller 20 can be provided on the outside of the lower part of the casing 1 to serve as a guide when moving the object to be coated up and down. The rollers 20 are preferably provided evenly around the downward extension area 21 of the opening area 5. In addition, in the apparatus of the present invention, a rope 22 for suspending the casing 1χ is connected to the upper part of the casing 1 in order to move the casing 1 along the object to be coated, and the rope 22 is used for winding and unwinding the rope. A means 23 having a drive device consisting of an electric motor, a speed reducer, etc. is connected.

In using the apparatus of the present invention as described above, first, the long object A is placed in the area 5 between the openings, and although the object A may be inserted from above or below, it is preferable. As shown in Fig. 4, the casing 1 is provided with 24 hinges on its side so that it can be opened and closed from the opposite side, and is normally closed with a locking metal fitting and can be coated by removing the locking metal fitting 2 as needed. Object A is attached from the side and then removed.

Next, the row 122 is extended and fixed above the workpiece A, and the winding means 23 raises the lobe 22 and the casing 1 along the workpiece. The relationship between the row 122 and the winding means 23 is as shown in FIG. 5, for example. In the case of FIG. An endless winder as shown in FIG. 1 is fixed as a means 23 for raising the casing up and down, and a rope 22 is connected to the winder, thereby moving the casing up and down. Also, the fifth
In the case of figure (b), 0-pu 2 is attached to one place of casing 1.
The free end of the lobe 220 is connected to a winding means (winch) 23 on the ground via a pulley 25Y hooked to a suitable member above the object to be coated. By winding up and unwinding the casing 1
move up and down. The casing 1 thus raised to the top of the object to be coated is then lowered at an appropriate constant speed by unwinding the rope 220. On this occasion,
A paint supply hose 1 connected to an above-ground paint tank or a paint reservoir 15 that also serves as a paint tank filled with paint in advance.
Paint is supplied from roller brush 4 to roller brush 6, and at the same time VC
! The roller brush 6 is driven and rotated by the motive 10, and the surface of the long object A is coated. In the coating apparatus of the present invention, the brush 6 is driven to rotate, so that even if the surface of the object to be coated has irregularities, the paint can be sufficiently applied even to the concave portions.

Particularly when painting a wire rope, the roller brush 6 should be moved so that the bristles of the brush are swept along the helical groove on the surface of the wire rope as shown in FIG. By tilting the rotating shaft 2 of the roller brush 60, the coating can be sufficiently applied to the helical groove.The preferred angle of inclination of the rotating shaft of the roller brush 60 depends on the descending speed of the casing 1 and the roller brush 60 even in the same wire rope coating. Although it changes depending on the number of rotations, etc., once these conditions are determined, the angle can be calculated as appropriate so that the tips of the brush bristles are swept along the helical groove on the surface of the wire rope. As shown in the drawing, it is preferable to match the length of the bristles according to the shape of the object to be coated.@Also, if the kite roller 20 is provided, the casing 1 can be smoothly raised and lowered. Therefore, the coating is more uniformly applied.A sealing member 19 is provided above the lower opening 4, so that the AiC to be coated does not rot and the paint does not leak to the outside of the casing 1 (into the paint reservoir 15). Note that even if the paint tank χ is installed separately, the paint accumulated in the paint reservoir can be collected by the bonder 17 via the pipes 16 and 18, and the collected paint is further transferred to the roller brush 6 through the paint supply hose 14Y. ◎ In the device of the present invention, if the roller brush 6 is set Qτ so that it can freely approach the opening area 5 and retreat from the opening area 5 by remote control, the brush 6 will not be required when the casing is raised. The openings 3 and 4 at the top and bottom of the casing can be set apart from the object to be coated so that they can be brought into contact only when the casing is lowered (i.e., during painting). It is preferable to use the minimum necessary size and -f''% depending on the diameter of the roller brush 6 and the kite roller 20.The most preferable shape and outer diameter of the roller brush 6 and kite roller 20 are used depending on the diameter of the long object to be coated. is good.

As described above, the apparatus of the present invention is extremely advantageous for coating objects that are longitudinally long rods of 2 m or more in length.
Even if the surface of the object to be coated has unevenness, it can be efficiently and uniformly coated from top to bottom, making it particularly suitable for coating wire ropes.It also causes environmental pollution and may cause environmental pollution.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional view of the device of the present invention, Fig. 2 and Fig. 4 are cross-sectional views thereof, Fig. 3 is a drawing of the vicinity of the electric motor, and Fig. 5 (α and Cb). is an explanatory diagram of the usage state of the device of the present invention, and Fig. 6 is an explanatory diagram of the positional relationship between the wire rope and the roller brush. 1: Casing 3.4 2nd opening 5: Area between opening 1 6: Roller brush T Two holding means 8: Universal joint 9: Flexible shaft 10: 1MJ motive 11: Worm shaft 12: Worm gear 13: Rotary joint 14: Paint supply hose 15 Two falling paint reservoirs 16
．． 18: Pipe 11: Pump 19: Seal member 20 Ni guide roller 21
: Downward extension area 22: Lobe 23 Nilog hoisting means 24: Hinge 25: Pulley M2 Figure 3 M4 Figure 5 (a) (b)

Claims (1)

[Claims] (1) An apparatus for coating a long rod-like object, in which openings are provided in the upper and lower parts of the casing to allow the rod-like long object to pass through, and A plurality of roller brushes are provided around the area between the upper and lower openings toward the area, and the -5
The brush can be driven and rotated, and each roller brush is connected to a means for supplying paint to the brush, and a falling paint reservoir is formed in the lower part of the casing, and above the lower opening of the casing. is equipped with a sealing member that corresponds to the cross-sectional shape and size of the long object to be coated.
A coating device for a rod-like long object, further comprising means for moving the casing along the long object. 2 (2) The coating device according to paragraph 1, in which the rotating shaft of the loaf brush can be tilted at an appropriate angle. (3) The coating device according to paragraph 1, in which a plurality of roller brushes are driven and rotated by one electric motor. Painting equipment. (4) The coating device of paragraph 1, in which the casing can be opened and closed so that it can be installed from the side of the long workpiece Y into the opening area. The coating device according to item 1, wherein a long object guide roller is provided toward the extension area. (6) Means is provided for extracting the paint accumulated in the falling paint reservoir and circulating it to the paint supply means. has been, first
Section painting equipment.