JPS6224141B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for painting the inner and outer surfaces of a tube body, which is used to paint a tube body whose inner surface has been lined.

When painting a tube, it is possible to move the tube back and forth between the intermediate part of the tube's transport route and the painting location, and it also supports the tube so that it can rotate around its axis, making it easy to paint. A trolley made of aluminum is used. However, transporting unpainted pipes from the transport route to the trolley and transporting the painted pipes from the transport route to the transport route is difficult, for example, when the pipe is heavy, such as a cast iron pipe. However, there is a problem in that the work is difficult.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a coating device for the inner and outer surfaces of a tube body that can easily and reliably carry the tube body in and out between the conveyance route and the truck.

For this reason, the present invention provides a trolley that can reciprocate between an intermediate portion of a transport path for transporting a horizontal tube in a direction perpendicular to the tube axis and a painting location on the inner and outer surfaces of the tube. A roller device is provided below the tube body position in the transport path to support both lower sides of the tube body and rotate the tube body around its axis, and the roller device is positioned above the roller top end. The pipe is capable of being raised and lowered from a lower position to a lower position, and transfers the pipe carried in from the conveyance path to the roller device by a downward movement, receives the pipe after painting from the roller device by a rising movement, and further transfers the pipe from the roller device by a rising movement. A lifting device for transporting the body onto the transport route is provided on the cart.

Therefore, the pipe body can be easily and reliably carried in and out between the transport path and the trolley,
This makes it possible to improve workability in the tube manufacturing process.

Hereinafter, one embodiment of the present invention will be described based on the drawings. In FIGS. 1 and 2, the intermediate portion 3 of the conveying path 2 that conveys the horizontal tube body 1 in the conveying direction A perpendicular to the tube axis includes the intermediate portion 3 and the inner and outer surfaces of the tube body 1. A trolley 5 that can be moved back and forth to and from the painting location 4 is provided. 6 is a rail on which the cart 5 runs. In the painting place 4, 7 is a nozzle that sprays paint onto the outer surface of the tube body 1, and is arranged above the moving path of the trolley 5, and is configured to be able to rise and fall according to the mouth diameter of the tube body 1. . 8 again
is a rod that can be inserted into the tube body 1 as the trolley 5 moves, and a rod 8 is attached at the tip to apply seal coat, tar evo, etc. to the inner surface of the tube body 1.
A nozzle 9 is attached for spraying the paint supplied along the line. This rod body 8 is also configured to be able to rise and fall in accordance with the oral cavity of the tube body 1. 10
1 is a lifting device for that purpose, and 11 is an operating handle.

3 to 5 show details of the five parts of the truck. 12 is a roller device provided on the trolley 5. That is, a pair of front and rear support stands 13A, 13B are fixed on the trolley 5, and each support stand 13
On A, 13B, each pair of rollers 14A, 15
A and rollers 14B and 15B are provided. Of these, the rollers 14A and 14B are
The rollers 15A and 15B are configured to freely rotate. As shown in FIG. 5, rollers 14A and 15A, and roller 14B,
Both sides of the lower part of the tube body 1 are supported by 15B,
Moreover, this tubular body 1 is rotated around the axis. 18 is a bearing. In addition, each roller 14
The upper ends of A, 14B, 15A, and 15B are located below the lower end position (not shown) of the tubular body 1 in the conveyance path 2. A support stand 19 is further fixed on the trolley 5, and on this support stand 19, the support stand 19 is placed in contact with the socket end 20 of the tube body 1.
A tapered roller 21 that prevents movement in the axial direction is freely rotatably attached. 22 is a tapered roller for the short tube body 23.

Furthermore, a pair of guide pillars 24A, 2 are mounted on the trolley 5.
4B is erected, and these guide pillars 24A, 24B
A lifting device 25 that can be moved up and down along the road is disposed. This lifting device 25 includes guide columns 24A and 24B.
A lifting frame 27 having a roller 26 that comes into contact with the lifting frame 27, and rollers 14A, 14 on the upper surface of this lifting frame 27.
A pair of transfer devices 2 attached to the outside positions of B, 15A, and 15B in the same direction as the conveyance direction of the tube body 1
8A and 28B.

29 is a lift device for driving the elevating frame 27 up and down. In this lift device 29, 3
0A and 30B are movable bodies that can be moved on the trolley 5 by rollers 31, and are configured to be able to move integrally with each other by being connected by a connecting member 32. 33 is a moving cylinder device. Idle rollers 34A, 34B are attached to the upper part of each moving body 30A, 30B, and the plate body 36A, which is attached to the lower surface of the lifting frame 27 and has a downwardly inclined end surface 35, 36B is in contact with it. As the movable bodies 30A, 30B move, the idle rollers 34A, 34B push up the plate bodies 36A, 36B, and the elevating frame 27 is raised.
Reference numeral 37 denotes a stopper fixed to the plates 36A, 36B in order to prevent the idle rollers 34A, 34B from overrunning.

In the transfer device 28B, as shown in FIG. A non-return stopper 39 and a main stopper 41 that protrude and retract from the upper surface 40 of the ring platform 38 to prevent or allow movement of the tube body 1 are arranged in this order in the conveying direction A, corresponding to the positions of the rollers 14B and 15B. It is attached with. An inclined table 42 is disposed in a portion of the wheel stand 38 between the non-return stopper 39 and the main stopper 41 and allows the tubular body 1 to be carried out to the conveyance path 2 by an operation of protruding from the upper surface 40 of the wheel stand 38. 43 is a cylinder device for operating the tilt table 42. Incidentally, by raising and lowering the lifting frame 27, the upper surface 40 of the wheel platform 38
is raised and lowered between an upper position and a lower position relative to the upper ends of the rollers 14A, 14B, 15A, and 15B. The transfer device 28A also
It has the same configuration as the transfer device 28B.

Next, the operation will be explained. As a preparation step before the pipe body 1 is carried onto the trolley 5, the trolley 5 is positioned at the midway portion 3 of the transport path 2, the elevator frame 27 is raised, and the main stoppers 41 of the transfer devices 28A and 28B are raised. state, and the inclined table 42 is kept in the retracted state.

Next, when the tube 1 on the conveyance path 2 is carried onto the cart 5, the tube 1 moves on the wheel stands 38 of the transfer devices 28A and 28B, crosses the non-return stopper 39, and reaches the main stopper 41. It is locked. When the elevating frame 27 is lowered by its own weight in this state, the tube body 1 on the ring platform 38 is moved by the rollers 14A, 14B, 15
A, 15B, and these rollers 14A, 14
It is rotatably supported by B, 15A, and 15B.

While rotating the receiving tube body 1, the cart 5 is slowly moved toward the painting place 4, and painting is performed while spraying the paint from the nozzles 7 and/or 9.

When the painting is completed, the trolley 5 is returned to the midway portion 3 of the transport path 2, and the elevating frame 27 is raised again. Then, rollers 14A, 14B, 15A, 1
The tubular body 1 supported at 5B is again moved onto the wheel stand 38, and the main stopper 41 is retracted and the inclined table 42 protrudes, so that it is moved in the transport direction A.
It is moved to the conveyance path 2 and sent to the next process.

As described above, according to the present invention, the pipe body can be easily and reliably carried in and out between the transport path and the truck, and workability in the pipe manufacturing process can be improved.

[Brief explanation of the drawing]

Fig. 1 is a plan view of an embodiment of the present invention, Fig. 2 is a front view thereof, Fig. 3 is an enlarged plan view of the truck section, Fig. 4 is a front view thereof, and Fig. 5 is a longitudinal section thereof. It is a right side view. 1, 23...Pipe body, 2...Transport route, 3...Middle part, 4...Painting location, 5...Dolly, 12...
Roller device, 14A, 14B...Roller, 15
A, 15B...Roller, 25...Lifting device, 28
A, 28B...Transfer device.

Claims (1)

[Claims] 1. A trolley is provided that can reciprocate between a midway portion of a transport route that transports a horizontal pipe in a direction perpendicular to the pipe axis and a painting location on the inner and outer surfaces of the pipe, and the transport route is mounted on this trolley. A roller device is provided below the tube position in which the tube body is supported on both lower sides of the tube body and which rotates the tube body around its axis, and the roller device is provided with a roller device between the upper position and the lower position with respect to the upper end of the roller. It can be raised and lowered by
The trolley includes an elevating device that transfers the tubular body carried in from the conveyance path to the roller device by a downward motion, receives the tube body after painting is completed from the roller device by a rising motion, and further transports the tube body to the conveyance path. A coating device for the inner and outer surfaces of a tube body, characterized in that it is installed above the tube body.