JPH0225531Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a tube straightening device for straightening a curved tube wound into a coil shape into a straight tube.

[Technical background of the invention and its problems]

This type of tube correction device that has already been proposed is constructed as shown in FIGS. 4 and 5.

That is, in FIGS. 4 and 5, an uncoiler 3 equipped with a bent tube 2 is rotatably mounted on one side of the machine base 1, and the machine base 1 near the uncoiler 3 has a , a support stand 4 is provided horizontally. Further, on this support stand 4, a roll support member 5 is vertically erected.
This roll support member 5 includes a plurality of straightening rolls 6.
are mounted on shafts in a staggered manner at the top and bottom. In particular, as shown in FIG. 5, this straightening roll 6 is formed with a circumferential groove 6a, and this circumferential groove 6a has the same shape as a semicircle that forms the cross section of the tube 2 to be straightened. It is formed.

Furthermore, another roll support member 7 is horizontally installed on the support stand 4 located at the tail end of the roll support member 5, and this roll support member 7 includes a plurality of straightening rolls 8. are mounted on shafts in a staggered manner left and right, and this straightening roll 8 is formed with a circumferential groove 8a, similar to the straightening roll 6 shown in FIG. 8a is formed to have the same shape as the semicircular cross section of the tube 2 to be corrected.

Therefore, the tube correction device described above is
A bent tube 2 wound into a coil is mounted on an uncoiler 3, and one end of the tube 2 is pulled through each of the straightening rolls 6 and 8 in a staggered manner.

Next, by pulling out the curved tube 2 in the direction of the arrow by a drive mechanism (not shown), each of the straightening rolls 6 transports the curved tube 2 in a meandering manner upward and downward. Thus, the bending distortion in the upward and downward directions of the curved tube 2 is corrected. On the other hand,
Each of the other straightening rolls 8 transports the curved tube 2 in a meandering manner in the horizontal direction (left and right direction), thereby correcting the horizontal bending distortion of the curved tube 2 and aligning it into a straight tube 2. I'm starting to do that.

However, since the circumferential grooves 6a and 8a of each of the straightening rolls 6 and 8 in the above-mentioned tube straightening device form the receiving surface of the tube 2 in a semicircular shape having the cross-sectional shape of the tube, (1) each of the straightening rolls 6,8
Not only is it necessary to adjust the positions of the straightening rolls 6 and 6 so that they are in close contact with each other, but also (2)
It is necessary to improve the machining accuracy of 8, (3), and
It takes a lot of skill and time to adjust the installation of each straightening roll 6, 8, and (4) processing and maintenance of the straightening rolls is troublesome and costs are high.

[Purpose of invention]

In order to eliminate the above-mentioned drawbacks, the present invention eliminates the need to adjust each straightening roll individually.
In addition to making it possible to easily adjust the installation of each straightening roll without requiring skill or consuming a lot of time,
The present invention provides a tube straightening device that aims to improve tube straightening efficiency and also to save labor through mass production.

[Summary of the idea]

In the present invention, a pair of roll support plates are arranged side by side on a support base, a plurality of straightening rolls are arranged in a staggered manner in the longitudinal direction of both roll support plates, and a plurality of straightening rolls are arranged in a staggered manner. A slit is formed in the one roll support plate, and an adjustment bolt is screwed into a part of the roll support plate near the slit so as to come into contact with the other roll support plate.

[Example of idea]

Hereinafter, the present invention will be described with reference to an illustrated embodiment.

In addition, the present invention will be described with the same reference numerals attached to the same constituent members as those of the above-described specific example.

1 and 2, reference numeral 4 denotes a support stand horizontally provided on the machine stand 1 near the uncoiler 3, and a pair of brackets 4a, 4b are provided at both ends of the support stand 4. are erected, and a pair of roll support plates 9, 10 are arranged side by side on both brackets 4a, 4b. In addition, a plurality of straightening rolls 11 are arranged in a staggered manner and are shaft-mounted in the longitudinal direction of both the roll support plates 9 and 10. A flat outer peripheral surface is formed so as to be in line contact with the tube 2.

On the other hand, holes 12 are perpendicularly formed in both ends of the roll support plate 9, and mounting bolts 13 are screwed into the holes 12 into the respective brackets 4a and 4b. has been done.

Therefore, when the diameter of the bending tube 2 changes,
Loosen each of the mounting bolts 13, move the roll support plate 9 upward or downward, and attach the tube 2.
The gap through which it passes can be freely adjusted.

On the other hand, a vertical slit 14 is formed beside the straightening roll 11 located at the end of the other roll support plate 10, and a part of the roll support plate 10 near this slit 14 has a ,
An adjustment bolt 15 is screwed into contact with the end surface 9a of one of the roll support plates 9.

Therefore, the straightness of the bent tube 2 can be corrected by adjusting the adjustment bolt 15.
As shown by the chain line in FIG. 1, the correction position of the correction roll 11 mounted at the extreme end can be finely adjusted by the elasticity of the part of the roll support plate 10 formed by the slit 14. It's becoming like that.

By drawing the curved tube 2 through the plurality of straightening rolls 11, it is possible to correct the bending distortion of the curved tube 2 in the upward and downward directions.

On the other hand, by arranging the entire roll support plates 9 and 10 horizontally, each straightening roll 11 can also be
The bent tubes 2 are mounted horizontally and arranged in a staggered manner, thereby making it possible to correct bending distortion in the horizontal direction.

Next, the embodiment shown in FIG. 3 is another embodiment of the present invention, in which the outer circumferential surface of each straightening roll 11' is formed in an arc shape, thereby forming a curved tube 2.
It is designed to assist in the transportation guide of

[Effect of idea]

As described above, according to the present invention, a pair of roll support plates 9 and 10 are arranged side by side on the support base 4, and a plurality of straightening rolls 11 are arranged in a staggered manner in the longitudinal direction of both roll support plates 9 and 10. A slit 14 is formed in one of the roll support plates 10 near the straightening roll 11 located at the terminal end, and an adjustment bolt 15 is installed in a part of the roll support plate 10 near the slit 14. Since it is screwed so as to come into contact with the other roll support plate 9, not only can fine adjustment of the straightness be easily made using the straightening roll 11 located at the end, but also skill is not required for adjustment. In addition, it is possible to improve the quality, and there is no need to increase the processing accuracy of the straightening roll, so that it can be provided at a low cost.

[Brief explanation of the drawing]

FIG. 1 is a front view of the tube straightening device of the present invention, FIG. 2 is an enlarged side view of the straightening roll used in the present invention, and FIG. 3 is a diagram showing another embodiment of the present invention. FIG. 4 is a front view of a tube straightening device that has already been proposed, and FIG. 5 is a side view of a straightening roll used in the tube straightening device. 2...Bent tube, 3...Uncoiler, 4
... Support stand, 9, 10 ... Support plate, 11 ... Correction roller, 12 ... Strip hole, 13 ... Mounting bolt, 1
4...slit, 15...adjustment bolt.

Claims (1)

[Claims for Utility Model Registration] 1. A pair of roll support plates are arranged side by side on a support base, and a plurality of straightening rolls are arranged in a staggered manner and mounted on the shafts in the longitudinal direction of both roll support plates, and the rollers are located at the end of the pair of roll support plates. A slit is formed in the one roll support plate beside the straightening roll, and an adjustment bolt is screwed into a part of the roll support plate near the slit so as to come into contact with the other roll support plate. A tube orthodontic device featuring: 2. The scope of the utility model registration claim, which is characterized in that holes are bored at both ends of one of the roll support plates, and mounting bolts are screwed into both holes to adjust the gap. The tube correction device according to item 1.