JPS62121684A - Rinsing device for inner surface of pipe - 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] Industrial applications The present invention relates to a cleaning device for the inner surface of a tube.

Conventional technologyWhen manufacturing cast iron pipes, in order to protect their inner surface,
It is customary to form a layer of mortar inside the pipe.

This mortar layer is formed by attaching mortar to the inner surface of the cast iron pipe by centrifugal force while rotating the cast iron pipe around its axis. However, when a mortar layer is formed by the action of centrifugal force in this way, light foreign matter floats to the inner surface of this mortar layer. Conventionally, after forming a mortar layer, the inner surface of this mortar layer is brushed,
Thereafter, cleaning water is injected into the pipe from the open end of the horizontally supported pipe to flush out the foreign matter.

Problems to be Solved by the Invention However, in the conventional method, a worker holds a spray gun and injects cleaning water into the pipe, so there is a problem in that cleaning workability is poor.

SUMMARY OF THE INVENTION An object of the present invention is to solve these problems and to enable efficient washing of the inner surface of a pipe.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a tube support device that supports the phase in an inclined manner and supports the phase in a rotatable manner around an axis, and a tube support device. A spray nozzle capable of injecting cleaning water from the upper open end of the tube supported by the device toward the inside of the tube; and a spray nozzle that continuously changes the inclination angle of the spray nozzle with respect to the axis of the tube to spray droplets b1 of the cleaning water. A nozzle swinging device that changes continuously from the inner surface on one end side of the tube to the inner surface on the other end side.

With this arrangement, the tube carried into the main washing device after brushing is supported by the tube support device so that its axis is inclined and is rotatable around the center of the tube. Therefore, by spraying cleaning water from the spray nozzle while rotating the mower, and shaking the spray nozzle an appropriate number of times using a nozzle shaking device, the inner surface is uniformly washed with water over the entire circumference and length. In addition, since the tube is supported in an inclined state, the cleaning water injected from the upper open end does not remain inside the tube and is discharged from the lower four-way end without leaving any residue inside the tube. Washed away.

Embodiment In FIG. 1, (1) ff is a pipe whose inside is to be washed with water, and has a socket (2) formed at one end and an insertion port (3) at the other end. (IA) shows a large diameter tube. (4) is a conveyor device, which is equipped with a pair of chain conveyors (5) so that the tube (1) can be supported horizontally and conveyed in a direction at an angle to its axis.

A water washing device according to the present invention is provided in the middle of the conveyance path formed by the conveyor device (4).

Here, (6) is a tube support device light, which has an oscillating roller (7), a fixed roller (8), and a stopper (9).

The swinging roller (7) is located between both chain conveyors (5).
Arm 4 that is f& and can swing up and down, and this arm <
II is oscillated kt', oscillating*-rut is jagged (lυ
and a roller provided at the swinging end of arm qq.

This roller @ is configured to move up and down by the swinging of the arm 4 between a straight position in which it is retracted below the chain conveyor (5) and a position in which it can support the chain in an oblique state.

The reference character is a bearing, and the reference character is a motor that drives the rollers 4 to rotate the tube (1) around its axis.

The fixed roller (8) is provided at a position corresponding to the insertion port (3) side of the tube (1), and has a roller U that is rotatably supported by a bearing 4. This roller qQ is arranged below the chain conveyor (5), and when the socket (2) side of the pipe (1) is supported in an inclined state by the swinging roller (7), the pipe (1) is The insertion port (3) side is rotatably supported.

The stopper (9) is located at the end surface C17 of the insertion port (3) of the tube (1)]
The rotary disk is provided at a position corresponding to the rotary disk and is rotatably supported by a bearing. This rotating disk 0
When the tube (1) is rotatably supported in an inclined state by the swinging roller (7) and the fixed roller (8), it hits the end surface C171 of the insertion port (3) of the tube (1). This prevents the pipe (1) from slipping down in the axial direction. In addition, since the rotating disk ayt is rotatably supported, it does not interfere with the rotation of the tube (1) by the swinging roller (7) and fixed roller (8), and prevents the tube (1) from slipping down. It is possible.

) is provided on the washing trolley at a position corresponding to the buttock support device (6). As shown in Figures 2 and 3, this water washing trolley (A) moves toward and away from the end surface of the socket (2) of the pipe (1) along the rail ■ provided in the pit @υ. It is said that it is possible to run in the direction of sliding, and the thrust roller (
C) is positioned relative to the tube (1) by abutting against the end surface. ) is a cylinder device installed inside the pit (υ) to drive the trolley.
Connector (A) and guide bar station are connected coaxially.
ing. The guide bar (A) is attached to the bush (4) on the side of the trolley (4).
C) is slidably supported.

A wire rod is connected to the connector (E), and the wire rod is fed out from a spring balancer on the side of the truck (4). As a result, the movement of the truck based on the operation of the cylinder device causes the thrust roller (c) to
This is intended to reduce the impact when the tube hits the end surface (c) of the tube (1).

An auxiliary truck 6v is connected to the truck IJIJ, and a footboard 4 is mounted on the auxiliary truck IJIJ.

This footboard (2) covers the bit Vυ when it moves away from the trolley (to the cart) or from the machine (1), and is used as a scaffold for the work.

A pair of spray nozzles capable of spraying washing water into the pipe (1) are provided on the washing trolley (1). Here, the electric nozzle is a penetrating cage, and has a frame that can freely swing up and down around the axis.

A bracket θ is provided on the suction frame of the swinging frame, and the spray nozzle is operated by this bracket θ.

□□□ is a tuning 1 screw, and by setting the angle of each spray nozzle to mmJ frame (to) m16,
The direction of injection into the pipe (1) can be set appropriately.

A roller 0 is removed from the lower surface of the example swinging frame, and this roller abuts against a cam plate provided on the truck. ← V is a tension spring that pushes the roller wing against the cam plate by pulling the swinging frame wing toward the inside of the cam plate.

A motor 4 is installed on the cart 4, and a chain
It is supposed to rotate through the cam plate scream. This rotation of the cam plate causes the swing frame circle to swing up and down, and the spray direction of the spray nozzle □□□ changes from
1) is changed in the longitudinal direction, making it possible to spray the cleaning water over the entire length of the inner surface of the pipe (1).

FIG. 4 shows the profile of the cam plate. That is, on the socket (2) side of the pipe (1) near the spray nozzle (g), the spray direction of the spray nozzle μs has a relatively large angle with respect to the axis of 'iii' (1), so the swinging occurs. Even if frame (3) moves widely, the injection direction does not change significantly. In contrast, the insertion port (3) of the tube (1)
On the side, the direction of the spray force of the spray nozzle flash approaches a direction parallel to the axis of the tube (1), so even if the swing frame (2) swings slightly, the spray direction changes significantly. Therefore, the cam plate adjusts the rate of rotation in the injection direction, and makes w(
1) Its profile is determined so that the cleaning water is sprayed uniformly over the entire length. Also, when the cleaning water is returned from the socket (3) side to the socket (2) side, the water is fed quickly to perform quick return, and conversely from the socket (2) side to the socket (3) side. When advancing, the feed is slowed down, and the inside of the tube (1) is washed with water during this advancement.

Next, the washing operation will be explained in detail. The pipe (1), whose inner surface has been brushed with the mortar layer, is conveyed horizontally on the conveyor device (4) with its socket (2) serving as a water-washing cart.The position of the water-washing device according to the present invention reach.

Then, the swinging roller (7) of the tube support device (6) is displaced upward, and the roller (to) lifts and supports the socket (2) side of the tube (1) from the chain conveyor (5). At the same time, the socket (3) side is displaced below the chain conveyor (5) and is supported by the roller (IQ) of the fixed roller (8). Stopper (9)
It is received by the rotating disc 0. This allows the tube (1
) is supported in an inclined manner so that the socket (2) faces upward, and is carefully rotated by the motor α4 of the swinging roller (7).

If the pipe is supported in this way, the water washing cart (4) will be driven and the spray nozzle will approach the socket (2). When the thrust roller (c) hits the end ring of the socket (2), Since the spray nozzle is positioned relative to the pipe (1), cleaning water is injected from both spray nozzles 61 and the cam plate (6) is rotated.

At first, the rotating portion of the cam plate shown in Fig. 4 is in contact with the roller, and the spray nozzle is directed toward the insertion port (3). The two spray nozzles can be installed at different angles on the swing frame (7), thereby making it possible to efficiently clean the inside of the blind (1).

When the cam plate (6) rotates from this state, the radius of the cam plate (from the rotation part) increases rapidly, so the swing frame is lifted greatly and the spray nozzle is returned quickly. and is directed toward the inner surface of the socket (2).

(6) After the part hits the roller, the cam plate -
The radius of the spray nozzle gradually decreases, and the angle of inclination of the spray nozzle with respect to the tube axis changes gradually and continuously. As a result, the cleaning water injection position is changed to the socket (2).
Continuously moves from the inner surface to the inner surface of the socket (3),
Moreover, since the tube (1) is rotated by the official support device ffi (6), the inward direction of the tube (1) is washed with water over its entire circumference and entire length. In addition, since the tube (1) is supported in an inclined state, water containing foreign matter after washing flows toward the insertion port (3) and is discharged from the tube (1) through this insertion port (3). be done. Therefore, foreign matter is unlikely to remain inside t(1) and water is drained well.

When the cam plate rotates once, the cleaning water passes through the pipe (1) once, so rotate the cam plate several times to make the cleaning water pass multiple times to thoroughly rinse the inside of the pipe (1). do.

When washing is complete, move the washing trolley away from the pipe (1) and move the MI! The i-motion rollers (7) are reversed downwards to return the tube (1) onto the conveyor device (4).

Thereafter, the pipe (1) is transported out of the washing device by means of a conveyor device (4).

Effects of the Invention As described above, according to the present invention, the inner surface of a pipe on which a mortar layer is formed can be efficiently washed with water, and the washing water after washing can be easily discharged to the outside of the pipe.

[Brief explanation of drawings]

FIG. 1 is an overall front view of one embodiment of the present invention, and FIG.
8 is a right side view of the second prisoner, and FIG. 4 is a detailed view of the cam plate. (1)...Pipe, (2)...Socket (one end side), (3)
... Socket (other end side), (6) ... Pipe support device, (4
)...washing trolley, competition...spray nozzle, □...
Nozzle rocking device, (to)... Rocking frame, Kicking...
・Cam plate

Claims (1)

[Claims] 1. A tube support device that supports a tube in an inclined manner and supports the tube rotatably around its axis; A spray nozzle that can inject cleaning water toward the pipe, and a spray nozzle that continuously changes the inclination angle of the spray nozzle with respect to the tube axis to continuously spray the cleaning water from the inner surface of one end of the tube to the inner surface of the other end. A cleaning device for the inner surface of a pipe, characterized by comprising: a nozzle swinging device that changes the nozzle;