JPH04358558A - Apparatus for coating pipes - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe coating apparatus for coating the outer peripheral surface of a pipe to be coated while rotating the pipe in the circumferential direction.

0002

2. Description of the Related Art In a conventional device of this type, two sets of support rollers 82A and 82B, at least one of which also serves as a driving roller, are arranged on a base 81, as shown in FIG. These support rollers 82A and 82B are configured to support the pipe M to be coated, rotate it in the circumferential direction, and paint the outer circumferential surface of the pipe M while moving the paint supply body 83 in the axial direction of the pipe M. Ta.

0003

[Problems to be Solved by the Invention] The conventional coating device described above is configured to paint while moving the coating supply body 83 in the axial direction of the pipe M. must be lowered from the support rollers 82A, 82B and the next pipe M must be placed on the support rollers 82A, 82B. That is, unless the painting of the pipe M is completely completed, preparations for mounting the next pipe M cannot be made, resulting in poor workability.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a pipe coating device that can improve the efficiency of coating work.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a pair of pipes that rotatably support in the circumferential direction the pipes to be painted whose outer peripheral surfaces are coated by a paint supply body. A cart that can run along rails is equipped with multiple sets of support rollers.

[0006]

[Operation] According to the pipe coating device having the above configuration, the pipe to be coated is supported by the support rollers of the cart, so by preparing a plurality of these carts, the pipe can be completely coated on one cart. The next pipe can be supported on another trolley and placed on standby without having to wait for the next pipe to finish, increasing the operating efficiency of the coating equipment.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 are a side sectional view and a plan view, respectively, showing a pipe coating apparatus according to an embodiment of the present invention.

In FIGS. 1 and 2, reference numeral 1 denotes a truck, which has a truck body 2 made of a frame-shaped frame and two sets of running wheels 3 and 4 provided at the front and rear of the truck body 2. Reference numeral 5 denotes a rail on which the traveling wheels 3 and 4 run. Reference numeral 6 denotes a prime mover for driving driving such as a motor attached to the above-mentioned truck 1, 7 (7A, 7B) a reducer that reduces the output of the prime mover 6 and transmits it to the traveling wheels 3 and 4, and 8 denotes a traveling driving force. It is a transmission shaft.

On the cart 1, there are a plurality of sets of support rollers 9 (9) each consisting of a pair of left and right supporting the pipe M to be coated.
A, 9B) are arranged separately in the front-rear direction, that is, in the axial direction of the pipe M. Reference numeral 10 indicates a shaft support member attached to the truck 1 in correspondence with each of the support rollers 9, and these shaft support members 10 have support arms 11 as shown in FIG.
The proximal ends of the support arms 11 are rotatably supported along vertical planes via shafts 12, and the bearing portions 13 of the support rollers 9 are connected to the distal ends of the support arms 11. A rotary drive device 14 for driving the shaft 12 is installed at the rear of the truck 1. 15 is the rotation drive device 1
This is a connecting shaft that transmits the rotational force of 4 to the shaft 12 on the front support roller 9 side. A chain 19 is suspended between a sprocket 16 fixed to the shaft 12 and a sprocket 18 fixed to the rotating shaft 17 of the support roller 9.

Reference numeral 20 (20A, 20B) is a hydraulic cylinder device provided on the truck 1 in correspondence with the support roller 9, and as shown in FIG. 4, the base end thereof is a bracket fixed to the truck 1. 21, via a shaft 22, and the distal end side of the piston rod 20A is connected to the drive piece 2, which is integrated with the support arm 11.
3 via a shaft 24 so as to be rotatable. This hydraulic cylinder device 20, together with the support arm 11 and the like, constitutes a roller position changing means 25 that selectively changes the rolling contact position of the support roller 9 with respect to the pipe M.

[0011] Rollers 26 (26A, 26B) are erected as stoppers at both front and rear ends of the trolley 1, and come into contact with both end surfaces of the pipe M for being coated, which is supported by the support rollers 9A, 9B. . Front movable stopper roller 2
The support shaft 27 of 6A is connected to a movable holder 29 rotatably supported by a bearing member 28 fixed to the truck 11, as shown in FIG. 30 is a cylinder device whose base end is pivotally supported by a fixed member 32 on the trolley 1 side via a shaft 31, and the distal end side of the piston rod 30A is connected to the movable holder 29 side via a shaft 33. The movable stopper roller 26A is moved between a stopper position and a stop release position by the pushing and retracting operations of the piston rod 30A. 34 is a pivot of the movable holder 29. The support shaft 27B of the rear fixed stopper roller 26B is erected with respect to the cart 1 via a position adjustment plate 35.

In the coating apparatus having the above configuration, first, the pipe M to be coated is transported onto the trolley 1 as shown in FIG. 6 by a crane or the like (not shown), and is supported by the support rollers 4. Further, one end surface of the pipe M is brought into contact with the stopper roller 9B, and the other stopper roller 26A is raised by the cylinder device 30 and pressed against the other end surface of the pipe M. Thereby, the pipe M is positioned in the axial direction. Next, after moving the pipe M together with the cart 1 to the position of the paint supply body 36 fixed at a predetermined position, when the rotary drive device 14 is activated, the shaft 12 and the sprocket 1 are moved.
6, 18 and the chain 19, the support roller 9 rotates, and the pipe M rotates in the circumferential direction.

In this state, when the travel drive motor 6 is driven to drive the fixed wheels 3 and 4 via the reducer 7, the bogie 1 travels on the rails 5. At the same time, by supplying the paint a from the paint supply body 36 to the outer circumferential surface of the pipe M as shown in FIG. 6, as the cart 1 travels as shown in FIG. The entire length will be automatically painted.

As the painting of the pipe M approaches the end,
The next pipe M to be painted can be placed on another trolley 1 and kept on standby for painting. That is, the pipe M
Even if the painting of one pipe is not completely completed, the next preparation can be made, and after the painting is completed, the next pipe can be painted immediately, so that work efficiency can be improved.

If the diameter of the pipe M is different, for example, if the pipe M is of a small diameter, the position of the support roller 9 can be changed by retracting the piston rod 20A of the hydraulic cylinder device 20. However, it can be stably supported. Of course, if the paint supply body 36 is also placed on a lifter (not shown) and set to be movable in the vertical direction, the outer peripheral surface of the pipe M can be painted in the same manner as described above.

[0016]

As described above, according to the present invention, a plurality of support rollers that rotatably support the pipe to be painted in the circumferential direction are installed on a truck that can run on rails, so that the pipe can be painted easily. Even if the pipe is not completed, the next pipe can be placed on another trolley and placed on standby, making the setup smoother, making it possible to continuously paint a large number of pipes and perform efficient painting.

[Brief explanation of drawings]

FIG. 1 is a side sectional view showing a pipe coating apparatus according to an embodiment of the present invention.

FIG. 2 is a plan view showing a pipe coating apparatus according to an embodiment of the present invention.

FIG. 3 is a partially cross-sectional plan view showing the vicinity of a support roller and a stopper roller.

FIG. 4 is a front view showing a means for changing the position of the support roller.

FIG. 5 is a partially cutaway side view of the driving portion of the movable stopper roller.

FIG. 6 is an explanatory diagram of the operation of the main part of the present invention.

FIG. 7 is an explanatory diagram of the operation of the main part of the present invention.

FIG. 8 is a schematic configuration diagram showing a conventional pipe coating device.

[Explanation of symbols]

1 Trolley 5 Rail 9A, 9B Support roller

Claims (1)

[Claims] Claim 1: A trolley capable of running along a rail and carrying a plurality of sets of support rollers, each pair of which rotatably supports a pipe to be painted whose outer peripheral surface is to be painted by a paint supply body in the circumferential direction. A pipe painting device characterized by being equipped with.