JPH07102398B2 - Belt wrapper - Google Patents

Description

TECHNICAL FIELD The present invention relates to a belt wrapper in which the shape of a belt can be adjusted according to the diameter of a winding reel and / or the winding direction.

[Prior Art] When winding a steel strip, the belt wrapper is configured so that the steel strip smoothly winds around the winding reel according to the winding diameter.
A guide device for guiding a steel strip. This belt wrapper will be described below with reference to FIG. That is, this belt wrapper is stretched over the six non-drive guide rollers 31a to 31f, and is also stretched over the take-up reel 33 in which the rubber sleeve 32 is fitted.
The steel strip 34 smoothly moves the rubber sleeve 32 on the take-up reel 33
A belt 35 that guides the user to wrap around the main arm is a main constituent element, and is composed of a guide 37 attached to the tip of the upper arm 36 and a tip guide 39 attached to the tip of the lower arm 38. Further, in detail, the guide 37 is rotated by the cylinder 41 around the rotation support shaft 40, the tip guide 39 is rotated by the cylinder 43 around the rotation support shaft 42, and the upper arm 36 is rotated. Cylinder 45 around axis 44
The lower arm 38 is rotated by a cylinder 47 around a rotation support shaft 46.

Since the belt wrapper is configured as described above,
When the steel strip 34 is wound around the rubber sleeve 32 on the take-up reel 33 for 4 to 5 turns, tension is generated in the steel strip 34, and the cylinder is
The upper arm 36 and the lower arm 38 are rotated by pulling 45 and 47 away from the take-up reel 33 to release the belt 35 from the take-up reel 33. Also, depending on the diameter of the take-up reel 33, the cylinders 41, 43, 45
The positions of and 47 are adjusted appropriately so that winding can be performed smoothly.

[Problems to be Solved by the Invention] However, in the conventional belt wrapper, there is no means for accurately grasping the movement amount of the cylinder.
Positioning of guides and guide rollers according to the winding diameter of the steel strip is not always appropriate, and there is a problem that the tip of the steel strip enters the gap of the tip guide or is bent and wound. This is, for example, the fourth example of the lower winding.
As shown in the figure, as a result of the guide roller 31b being strongly pressed against the rubber sleeve 32, the rubber sleeve 32 is deformed (A part),
This is because the steel strip 34 is bent by this deformation (B portion). Therefore, the guide roller 31b and the rubber sleeve 32 are
If it is too large, it will not be guided, and if it is too small, the problems described above will occur, so it was necessary to make accurate adjustments. Similarly, tip guide 39 and rubber sleeve 32
As for the gap, too large, it does not guide, and too small causes a problem that the steel strip hits, and it was necessary to adjust it accurately.

The present invention solves the above-mentioned problems of the prior art,
It is an object of the present invention to provide a belt wrapper that can accurately adjust the position of a guide.

[Means for Solving the Problems] A belt wrapper according to the present invention is a belt wrapper configured such that a belt shape can be adjusted in accordance with a take-up reel diameter and / or a take-up direction. The belt wrapper is characterized in that a position detector is built in at least one of the working cylinders.

[Operation] The belt wrapper according to the present invention is a belt wrapper in which the belt shape can be adjusted according to the diameter of the take-up reel and / or the take-up direction. Since the position detector is built in, the position of the cylinder can be accurately grasped. Therefore, the guide or the guide roller can be set at an accurate position, and the steel strip can be wound normally.

[Embodiment] FIGS. 1 and 2 show a belt wrapper according to an embodiment of the present invention.
It will be described with reference to the drawings. FIG. 1 is an explanatory view showing the structure of this belt wrapper and the action in the upper winding direction. This belt wrapper is stretched over six non-drive guide rollers 1a to 1f, and is also stretched around a take-up reel 3 in which a rubber sleeve 2 is fitted, so that a steel strip 4 smoothly moves on the rubber on the take-up reel 3. The belt 5 which guides the sleeve 2 to be wound around it is a main constituent element, and is composed of a guide 7 attached to the tip of the upper arm 6 and a tip guide 9 attached to the tip of the lower arm 8. Then, in detail, the guide 7 includes the cylinder 11 around the rotation support shaft 10.
The tip guide 9 is rotated around the rotation support shaft 12 by the cylinder 13, and the upper arm 6 is rotated by the rotation support shaft 14.
A lower arm 8 is rotated around a rotation support shaft 16 by a cylinder 17 by a cylinder 15.

Since the belt wrapper of the present invention is configured as described above, when the steel strip 4 is wound around the rubber sleeve 2 on the take-up reel 3 by 4 to 5 turns, tension is generated on the steel strip 4, the cylinders 15 and 17 are wound. Is used to rotate the upper arm 6 and the lower arm 8 in the direction away from the take-up reel 3 to release the belt 5 from the take-up reel 3. Also, depending on the diameter of the take-up reel 3, the cylinder 1
The positions of 1, 13, 15 and 17 are adjusted appropriately so that winding can be performed smoothly.

In the case of lower winding, the positions of the lower arm and the upper arm with respect to the reel may be reversed (for example, as shown in FIG. 4 to FIG. 3).

Furthermore, the belt wrapper will be described in detail.
For one or more of 11, 13, 15 and 17, a cylinder which can detect the position of the cylinder as shown in FIG. 2 is used. In this cylinder, concentric (or spiral) magnetic material portions 22 and non-magnetic material portions 23 are alternately assembled in a cylinder rod 21 at an equal pitch (P). The primary excitation coils 24 and 25 and the secondary induction coil 26 are arranged at fixed positions in the magnetic shield core 27 in the detection head portion. At this time, set the primary coils 24 and 25 to asin ωt and acos
When alternating-current excitation is performed at ωt, the magnetic resistance repeatedly changes every pitch as the rod 21 moves due to the combination of the magnetic body 22 and the non-magnetic body 23 in the rod 21. This change in magnetic resistance appears as a change in induced voltage in the secondary coil. That is, the secondary coil induced voltage E is expressed by equation (1).

E = Ksin (ωt-2πX / P) (1) However, K: constant, X: cylinder rod movement amount This phase is shifted by the rod movement amount X compared to the primary excitation asinωt. I understand. Therefore, if the phase shift between the two is taken out digitally by the detector,
The linear displacement of the cylinder rod 21 can be directly detected within the range of 1 pitch (P). Further, since the magnetic material portions 22 are continuously arranged even if the pitch exceeds 1 pitch, by repeating the same change and counting the pitch (P), the entire length can also be directly detected.

Since the cylinder used in the belt wrapper of the present invention is configured as described above, the cylinder rod can be set at an arbitrary position by using a controller (not shown). Therefore, it is possible to set the guide of the belt wrapper and the guide roller to an arbitrary position that requires them, so that the belt can be smoothly wound at any winding diameter or in any winding direction.

[Advantages of the Invention] According to the present invention, a steel strip can be smoothly wound around a winding reel.

[Brief description of drawings]

FIG. 1 is an explanatory view of a belt wrapper according to an embodiment of the present invention,
FIG. 2 is an explanatory view of a cylinder used in a belt wrapper according to an embodiment of the present invention, FIG. 3 is an explanatory view of a conventional belt wrapper, and FIG. 4 is a state in which a steel strip is bent and wound in a conventional belt wrapper. FIG. 1a to 1f …… Guide roller, 3 …… Winding reel, 5 …… Belt, 6 …… Upper arm, 7 …… Guide, 8 …… Lower arm, 9 …… Tip guide, 11,13,15,17 …… Cylinder, 21 …… Cylinder rod, 22 …… Magnetic substance, 24,25 …… Primary excitation coil, 26 …… Secondary induction coil.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shinki Sumiyoshi 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Nihon Kokan Co., Ltd. (72) Inventor Haruyuki Nita 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Mitsuo Ichikawa (56) References JPN Steel & Tube Co., Ltd. References JP 58-29525 (JP, A) JP 60-155057 (JP, A) JP 61-117317 (JP, U)

Claims (1)

[Claims] 1. A belt wrapper having a belt shape adjustable according to a winding reel diameter and / or a winding direction, wherein a position detector is built in at least one of a guide or a guide roller position setting cylinder of the belt wrapper. A belt wrapper characterized by that.