JPS599739Y2 - Self-propelled paint applicator - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a self-propelled paint applicator.

For example, before wrapping a corrosion-resistant tape around a steel pipe, paint is applied to the steel pipe in order to increase the corrosion-proofing effect and the adhesive strength of the tape.

A conventional paint applicator that automatically performs such work has a structure in which the applicator is fixed on the floor and a long body is moved to apply paint to the outer periphery of the body.

However, such a stationary coating machine has the disadvantage that if the elongated body has already been laid, the elongated body cannot be moved, and therefore the coating operation cannot be performed.

An object of the present invention is to provide a self-propelled paint applicator that can easily apply paint to existing long bodies.

Hereinafter, specific examples of the present invention will be explained in detail with reference to the drawings.

As shown in FIGS. 1 and 2, the self-propelled paint applicator of this embodiment includes a traveling section 2 that is attached to the outer periphery of a long body 1 such as a pipe and that travels by itself without rotating. The coating part 3 is rotatably supported at the rear of the part 2 and rotates around the elongated body 1 to apply the paint.

The running section 2 includes a U-shaped running frame 4 having an opening 4A on one side, and the running frame 4 is attached to the elongated body 1 from the side thereof using the opening 4A. It has become.

Two pairs of front and rear drive wheels 5, 5, 6.6, which run on the upper surface of the elongated body 1, are rotatably supported on the upper side of the running frame.

These drive wheels 5, 5, 6.6 are fixed to a common shaft 7, 8 in pairs, and each shaft 7, 8 has a sphere locket.
．． 10 are fixedly attached, and a chain 11 is passed over these so that they can be rotated together.

Another sprocket 12 is fixed to the shaft 8, and a chain 13, a sprocket 14, a clutch 15, a reducer 16, pulleys 17, 18, and a belt 1 are attached to this sprocket 12.
The rotational force from a rotational drive source 20 such as an engine is transmitted through the rotational drive source 20 such as an engine.

The portion from the sprocket 14 to the rotational drive source 20 is supported by the lower side of the traveling frame 4, and is supported by the upper and lower sprockets.
12 and 14 are connected by a chain 13.

The clutch 15 is provided on the output shaft of the speed reducer 16, and its operating lever is omitted.

On the traveling frame 4, two pairs of front and rear driven wheels 21, 21, 22, 22, which rotate in contact with both sides of the elongated body 1, are attached to a shaft 23. 23, 24. It is rotatably supported via 24.

Front and rear shafts 23.2 that close the opening 4A side of the traveling frame 4
4 is attached so that the opening 4A of the traveling frame 4 can be easily opened and closed.

That is, the upper parts of these shafts 23 and 24 are respectively hinged 25.
, 25 so as to be swingably supported so as to open outward.
The lower part is inserted into an elongated hole 26 formed in the running frame along the longitudinal direction of the elongated body 1 and fixed with a nut 27.

Therefore, the work of attaching the traveling frame 4 to the elongated body 1 can be performed without any problem.

A bevel gear 28 is fixed to the shaft 8 of the drive wheel 6, and a bevel gear 29 is meshed with this gear.

The bevel gear 29 is fixed to a gear shaft 30, and this shaft 30 is rotatably supported by the traveling frame 4 via a bearing 31 in a direction parallel to the elongated body 1.

The end of the gear shaft 30 extends to the rear of the traveling section 2, and a pulley 32 is fixed to the tip thereof.

These bevel gears 28 to pulleys 32 constitute a rotational force transmission means 33 that transmits rotational force from the running section 2 to the application section 3.

Further, at the bottom of the traveling frame 4, there is a paint tank 34 that stores paint, and the paint in this tank 34 is transferred to a pipe 3.
A pump 36 is attached which sucks up and pumps out water through the pipe 5.

The pump 36 is connected to the speed reducer 16 via pulleys 37, 38 and a belt 39, and is driven to rotate.

The paint sent out from the pump 36 is guided to the upper rear part of the traveling section 2 by a pipe 40, and is discharged and supplied onto the upper surface of the elongated body 1.

40a is a paint outlet. A valve 41 is provided in the middle of the pipe 40.

The paint supply means 4 is connected to the tank 34 to the valve 41.
It consists of 2.

The applicator 3 includes a rotating frame 43 that rotates while surrounding the outer periphery of the elongated body 1, and this rotating frame 43 is rotatably supported on its outer periphery by a plurality of receiving rollers 44.

Each receiving roller 44 is supported on the shaft 24 by a bracket 45, and is supported on the traveling frame 4 via this shaft 24.

The rotating frame 43 is divided into two parts, and the divided part 4
3a are separably connected by a connecting means 46 such as a bolt.

Therefore, it can be easily fitted onto the outer periphery of the elongated body 1 from the middle.

A V-groove 47 is formed on the outer periphery of the rotating frame 43, and the grooved rotating frame 43 and the pulley 3 of the rotational force transmitting means 33 are connected to each other.
2 are connected by a belt 48 to transmit rotational force.

The rotary frame 43 is provided with arms 49 protruding rearward at a plurality of locations in the circumferential direction thereof, and each arm 49 spreads the paint supplied to the surface of the elongated body 1 and applies it to the outer periphery of the elongated body 1. The applicators 50 are provided with their positions shifted from each other in the longitudinal direction of the elongated body 1.

Each applicator 50 includes a base body 52 whose position can be varied with respect to the arm 49 and is fixed at a required position with a screw 51, a rotary arm 53 rotatably supported by the base body 52, and a rotary arm 53 that is rotatable by the rotary arm 53. It is structured to include a coating roller 54 that is freely attached and a spring 55 that biases the coating roller 54 so that it comes into contact with the surface of the elongated body 1.

In such a self-propelled paint applicator, when the rotary drive source 20 is driven, the drive wheels 6 are forcibly rotated, and the traveling section 2 is self-propelled using the elongated body 1 as a rail.

Along with this, the applicator 3 is also transported together.

Further, when the rotational drive source 20 is driven, the pump 36 is driven and paint is discharged and supplied onto the upper surface of the elongated body 1 behind the running section 2.

The rotating frame 43 of the applicator 3 includes a rotating force transmitting means 33.
The rotational force is transmitted through the belt 48 and the rotating frame 43 rotates around the elongated body 1.

Along with this, each applicator 50 also revolves around the elongated body 1, and each applicator roller 54 rotates while contacting the elongated body 1,
The paint supplied to the surface of the elongated body 1 is spread out and uniformly applied to the surface of the elongated body 1.

Since each coating roller 54 is slightly shifted in position in the longitudinal direction of the elongated body 1, uneven coating can be eliminated.

Note that when adjusting the amount of paint supplied before driving, the clutch 15 is kept disconnected.

In this way, the running section 2 does not run, and the application section 3
The pump 36 does not rotate, and only the pump 36 rotates, allowing the paint to be delivered.

Note that the transmission of the rotational force from the rotational force transmission means 33 to the rotating frame 43 is not limited to the belt 48, and may be performed using a chain, gears, or the like.

Furthermore, a coating brush may be used instead of the coating roller 54.

As explained above, since the paint applicator of the present invention is self-propelled, it can easily apply paint to an existing long body.

In addition, the present invention is divided into a traveling section that travels against the elongated body and an applicator that rotates around the elongated body, and the rotary drive source, etc. is mounted on the traveling section, so the operation of the rotary drive source, etc. is easy. It can be done easily.

Furthermore, in the present invention, since the traveling frame of the traveling section is approximately U-shaped, it can be easily attached to a long body from the middle, and the attachment work can be performed more easily than other multi-divided types.

[Brief explanation of the drawing]

1 and 2 are a side view and a rear view showing an embodiment of the coating machine according to the present invention. 1... Long body, 2... Running part, 3...
... Application part, 4 ... Traveling frame, 4A.
...Opening, 5, 6... Drive wheel, 15.
...Clutch, 20... Rotation drive source, 2
1, 22... Driven wheel, 33... Rotational force transmission means, 34... Tank, 36...
Pump, 40... Pipe, 42... Paint supply means, 43... Rotating frame, 50...
...Applicator, 54... Application roller, 55.
·····spring.

Claims (4)

[Scope of utility model registration request] (1) A self-propelled paint applicator that travels while applying paint to the outer periphery of a long body, including a running part supported by the long body and self-propelled in the longitudinal direction thereof, and a running part supported by the running part. an application section that rotates around the outer periphery of the elongated body and applies paint to the elongated body, and the traveling section includes a driving wheel and a driven wheel that rotate while contacting the elongated body; A rotational drive source for forcibly rotating, a rotational force transmission means for transmitting rotational force from the rotational drive source to the application section, and a paint supply means for supplying paint to the surface of the elongated body are approximately U-shaped. The driven wheel is supported by a running frame, and the driven wheel is provided in an opening of the running frame so as to be able to open and close the opening, and the applicator is configured to be rotatable around the outer periphery of the elongated body. a rotating frame rotatably supported by a running frame and rotationally driven by applying a rotational force from the rotational force transmitting means; A self-propelled paint applicator comprising: an applicator that spreads and applies the supplied paint to the outer periphery of the elongated body. (2) The paint supply means includes a paint tank, a pump that is driven by the rotational drive source to suck up and send out the paint in the paint tank, and a pipe that guides the paint sent out from the pump to the surface of the elongated body. A self-propelled paint applicator according to claim 1 of the registered utility model, which comprises: (3) The applicator includes a plurality of applicator rollers, and each of the applicator rollers is attached to the elongated body at a position shifted in the longitudinal direction of the elongated body. Self-propelled paint applicator. (4) The self-propelled coating machine according to claim 3, wherein each coating roller of the applicator is biased by a spring so as to come into contact with the surface of the elongated body.