JPS6111177Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a self-propelled taping machine that automatically wraps a tape such as an anticorrosion tape around the outer periphery of a long object such as a pipe.

Conventional self-propelled taping machines of this type include one in which the tape winding section is directly driven by a rotational drive source and the rotational force for running is obtained from the tape winding section (Japanese Patent Publication No. 31428/1983); (b) A traveling part that rides on the elongated body and moves by itself, and a tape winding part that tapes the outer periphery of the elongated body while rotating around the outer periphery of the elongated body when instructed by the traveling part, A type of device (Japanese Patent Publication No. 18936/1983) has been proposed in which both the traveling section and the tape winding section are driven by the driving force of a rotary drive source mounted on the section.

However, when the type A is provided with a speed change mechanism, the rotational force for running changes accordingly, and the tape winding operation cannot be performed under optimal conditions. Further, in the structure in which the rotational force for running is obtained from the tape winding part, there is a drawback that it is difficult to make the running part and the tape winding part, both of which have considerable weight, travel together.

In addition, since the type B has a structure in which the vehicle rides on a long body, the center of gravity is above the long body, making it extremely difficult to stabilize the running posture. If it is tilted, the winding pitch of the tape tends to be disturbed. In addition, this type of tape has the disadvantage that since the running speed is changed to change the tape winding pitch, the work efficiency is extremely poor when performing close winding such as lap winding. Furthermore, when wrapping a long object such as a steel pipe with tape, as a preliminary step, a polishing machine is run first to polish the surface of the long object, and then a taping machine is run to wrap the long object. After taping the surface of the body, a paint applicator is often run as a post-work to apply anti-corrosive paint to the surface of the tape layer. If the speed is increased or decreased, the speed balance of parallel running with the polishing machine and paint applicator will be disrupted, resulting in smooth
The disadvantage is that it becomes impossible to have people running side by side.

The purpose of this invention is to be able to perform tape winding work efficiently and at the correct pitch under optimal conditions, to stabilize the balance of the machine while it is running, and to have machines that run back and forth. To provide a self-propelled taping machine that can easily balance parallel running speeds even when the taping machine is running in parallel.

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 taping machine of this embodiment includes a running section 2 that is suspended from a long body 1 such as a pipe and runs on its own without rotating; The tape winding section 3 is rotatably supported at the rear of the elongated body 2 and rotates around the elongated body 1 to wind the tape.

The running section 2 includes a U-shaped running frame 4 having an opening 4A on one side, and the running frame 4 is fitted onto the elongated body 1 and suspended and supported using the opening 4A. It is becoming more and more common. On the upper side of the running frame 4, there are two pairs of front and rear drive wheels 5, 5, which run on the upper surface of the elongated body 1.
6, 6 are rotatably supported. These driving wheels 5, 5, 6, 6 are fixed to a common shaft 7, 8 for each pair, and each shaft 7, 8 has a sprocket 9,
10 are fixedly attached, and a chain 11 is spanned over these so that they can be rotated together. Another sprocket 12 is fixed to the shaft 8, and a chain 13 and a sprocket 1 are attached to this sprocket 12.
4. Rotational force from a rotational drive source 16 such as an engine is transmitted via a reduction gear 15 and the like. The sprocket 14, the speed reducer 15, and the rotational drive source 16 are supported on the lower side of the running frame 4, so that the center of gravity of the running section 2 is located below the elongated body 1. A chain 13 connects the upper and lower sprockets 12 and 14. In the running frame 4,
Two pairs of front and rear driven wheels 17, 17, 18, 18 that rotate in contact with both sides of the elongated body 1 are attached to shafts 19, 19,
It is rotatably supported via 20,20.
Front and rear shafts 1 that close the opening 4A side of the traveling frame 4
9 and 20 are 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 19 and 20 are hinges 2, respectively.
1 and 21 so as to be swingable so as to open outward, and the lower part thereof is inserted into a notch 22 formed in the running frame 4 along the longitudinal direction of the elongated body 1 and fixed with a nut 23. It's getting old. Therefore, the work of attaching the traveling frame 4 to the elongated body 1 can be performed without any problem. Front axis 19,1
On the lower side of 9, a shaft 24 is attached horizontally to the bracket 2.
5 and 25, and a driven wheel 26 that rotates in contact with the lower surface of the elongated body 1 is rotatably supported on this shaft 24. The existence of this driven wheel 26 prevents the running frame 4 from floating up due to tape tension. Opening 4A of traveling frame 4
The shape of the bracket 25 is selected to be U-shaped or the like so that the shaft 20, which needs to be removed from the side, can be easily removed from the bracket 25 as well.

A bevel gear 27 is fixed to the shaft 8 of the drive wheel 6, and a bevel gear 28 is meshed with this gear 27. The bevel gear 28 is fixed to a gear shaft 29, and this shaft 29 is rotatably supported by the traveling frame 4 via a bearing 30 in a direction parallel to the elongated body 1. One speed change gear 31 is fixed to the shaft 29, and the other speed change gear 32 is meshed with this gear 31, and these gears 31 and 32 constitute a speed change mechanism 48. The transmission gear 32 is fixed to one end of a shaft 33 parallel to the shaft 29. The shaft 33 is rotatably supported by the traveling frame 4 by a bearing 34. The other end of the shaft 33 projects rearward from the running frame 4, and a sprocket 35 is fixed to its tip. These bevel gears 27 to sprockets 35 constitute a rotational force transmission means 36 for transmitting rotational force from the running section 2 to the tape winding section 3.

The tape winding section 3 includes a rotating frame 37 that rotates while surrounding the outer periphery of the elongated body 1, and this rotating frame 37 is rotatably supported on its inner periphery by a plurality of receiving rollers 38. Each receiving roller 38 is supported on a shaft 20 by a bracket 39, and supported on the traveling frame 4 via this shaft 20. The rotating frame 37 is divided into two parts, and the divided part 3
7a are separably connected by a connecting means 40 such as a bolt. Therefore, it can be easily fitted onto the outer periphery of the elongated body 1 from the middle. A sprocket 41 is provided on the outer periphery of the rotating frame 37, and the sprocket 41 and the sprocket 35 of the rotational force transmitting means 36 are connected by a chain 42 so that rotational force can be transmitted. A tape pad holder 43 is attached to the rotating frame 37 and rotatably supports a tape pad 44, so that a tape 45 can be fed out. The tape tension can be arbitrarily adjusted by adjusting the pressure of the spring 46 of the tape pad holder 43 with a nut 47.

In such a self-propelled taping machine, when the rotational drive source 16 is driven, the drive wheel 6 is forcibly rotated,
A traveling section 2 runs by itself using the elongated body 1 as a rail. Along with this, the tape winding section 3 is also transported together. The rotational force of the rotational drive source 16 is transmitted to the rotational frame 37 of the tape winding section 3 via the rotational force transmission means 36 and the chain 42, and the rotational frame 37 rotates around the elongated body 1. Along with this, the tape pad 44 also rotates while revolving around the elongated body 1, and the tape 45 is fed out and wound around the outer periphery of the elongated body 1. The winding speed of the tape 45 is
By changing the gear ratio of the transmission gears 31 and 32 in the rotational force transmission means 36, it is possible to arbitrarily adjust the rotational force regardless of the traveling speed.

Note that the rotating force transmitting means 36 is connected to the rotating frame 3.
Transmission of the rotational force to 7 may be performed by gears, belts, etc., instead of using the chain 42.

Further, a plurality of tape pad holders 43 can be symmetrically attached to the rotating frame 37 so that a plurality of tapes 45 can be wound simultaneously.

As explained above, the self-propelled taping machine according to the present invention has a structure in which the running section is suspended from a long body and runs, and the center of gravity of the running section is located below the long body. This allows the taping machine to run in a stable position. Therefore, it is possible to avoid inconveniences such as the tape winding pitch becoming disordered due to a change in the posture during driving. In addition, in this invention, the running section runs at a constant speed, and the speed of the tape winding section is changed according to the tape winding pitch, so tape winding work can be carried out efficiently even when winding tightly. can. Moreover, even if there are machines running in parallel, this tape winding machine runs at a constant speed without being affected by the tape winding pitch, making it easy to maintain a speed balance with the machines running in parallel. Able to perform work. Moreover, in the present invention, since the speed change mechanism for changing the rotational speed of the tape winding section is supported on the traveling frame side, the weight of the tape winding section can be reduced and the rotation of the tape winding section can be performed smoothly.

[Brief explanation of the drawing]

1 and 2 are a side view and a rear view showing an embodiment of a self-propelled taping machine according to the present invention. DESCRIPTION OF SYMBOLS 1... Long body, 2... Running part, 3... Tape winding part, 4... Running frame, 4A... Opening part,
5, 6... Drive wheel, 16... Rotary drive source, 17,
18, 26... Driven wheel, 19, 20... Shaft, 3
1, 32...Transmission gear, 36...Rotational force transmission means, 37...Rotating frame, 43...Tape pad holder, 44...Tape pad, 45...Tape, 48...Transmission mechanism.

Claims (1)

[Scope of utility model registration request] A running part supported by the elongated body and self-propelled in the longitudinal direction thereof, and a tape winding part supported by the running part and performing taping on the elongated body while rotating around the outer periphery of the elongated body. In the self-propelled taping machine, the running section has a structure that is suspended and supported by the elongated body, and the running section includes a driving wheel and a driven wheel that rotate while contacting the elongated body, and a driving wheel and a driven wheel that rotate while contacting the elongated body. a rotational drive source that forcibly rotates the drive wheels;
A rotational force transmission means having a speed change mechanism in the middle and transmitting rotational force from the rotational drive source to the tape winding part is supported by a traveling frame so that the center of gravity is located below the elongated body. a rotary frame rotatably supported by the running frame so that the tape winding part can rotate freely around the outer periphery of the elongated body, and is rotationally driven by applying a rotational force from the rotational force transmission means; A self-propelled taping machine characterized by comprising a tape pad holder supported by a rotating frame.