JPH081226A - Device for threading strip - Google Patents

Abstract

PURPOSE:To easily clamp the tip of a strip by connecting so that the clamping device of the strip can be moved to a chain, etc. CONSTITUTION:A roller chain 7 stretching (driving) a strip S is guided by a guide 8 and is wound in a loop shape around bridle rolls 1 to 4. The roller chain 7 is driven by a stretching device 50. The guide 8 is installed with circular-arc shape chain guides (a)-1 to (a)-13 and straight chain guides (b)-1 to (b)-13 connected together. And the clamping device 90 of the strip S is connected so that it can be freely moved by a chain 11 in a stand-by position A to the chain 7. Consequently, even if dispersion exists in the induction stop position of the tip of the strip, a fine position adjustment operation can be made unnecessary.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold rolling line inlet / outlet bridle portion, a temper rolling line front and rear bridle portion,
TECHNICAL FIELD The present invention relates to a stripping device that guides a strip tip before a repair work and a recovery work after a strip breaks in a process line such as a pickling line, an electrolytic cleaning line, and a continuous annealing line.

[0002]

2. Description of the Related Art The bridle roll section of a process line,
Two endless roller chains or wire ropes that can be driven in substantially the same state when wound on the above-mentioned rolls are used as a leading end threading method in a place where it is difficult to perform strip leading end threading work, such as in a furnace. In addition to the above, there is proposed a device in which a strip clamp device is provided between these roller chains or wire ropes to clamp the tip of the strip and drive two endless roller chains or wire ropes to pass the strips. .

The method of clamping the strip end in this device is as follows: 1) by turning the magnet on and off (Fig. 4 of Japanese Utility Model Publication No. 57-980), and 2) by a received material and a restraining plate (actual fair number 2-25529). (Fig. 3) of the above, both of which are directly attached to the endless roller chain or the cross member between the ropes.

[0004]

In the above conventional technique, since the clamp is fixed to the cross member between the roller chains or the ropes, it is necessary to accurately guide the strip tip to the clamp portion. Takes time and effort. SUMMARY OF THE INVENTION An object of the present invention is to provide a strip threading device capable of solving these problems.

[0005]

SUMMARY OF THE INVENTION A strip threading device according to the present invention comprises a chain, a wire, or a rope running in a bearing portion of a threading roll or roller of a process line or in the vicinity of the bearing portion or the bearing portion. With a possible guide, the strip clamping device is movably connected to said chain or wire or rope.

[0006]

Since the strip clamping device is movably connected to the chain, the wire or the rope, the strip tip can be easily clamped even if the induction stop position of the strip varies. .

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings when it is applied to an outlet bridle portion between a rolling mill of a cold rolling line and a strip winding machine.

In FIG. 1, a strip passing device is provided in a bridle portion between a rolling mill and a winding device. 1 to
4 is a bridle roll to be passed through the tip, and c-1 to c-4 are snubber rolls.

Around these bridle rolls 1 to 4,
For example, a roller chain 7 that pulls (drives) the strip S is guided by a guide 8 and wound in a loop shape. The guide 8 is provided separately from the roll bearing portion (Fig. 2), and the guide 8 includes the arc-shaped chain guides (a-1 to a-13) and the linear chain guides (b-1 to b-). 1
It is installed by connecting 3).

In this example, the chain guide is installed in the entire range of the chain traveling portion, but a linear guide, for example, b-
It is possible to omit 12 and 13 from the viewpoint of cost. A sprocket wheel may be provided on the way.

Then, for example, at the position of the bridle roll 2 having the snubber roll c-2, the guide 8 is shown in FIG.
As shown in (a), the snubber roll c-2 is arranged in pairs on the left and right sides between the body end and the bearing portion 2a. The guide 8 has a U-shape having stepped portions for preventing the chain from coming off on the right and left sides. However, in order to reduce the cost, as shown in (b), an L-shaped shape having a stepped portion for stopping may be used.

The roller chain 7, which is a towing (driving) member, is driven by a towing (driving) device 50. The traction device 50 is driven by a sprocket wheel 5 driven via a roller chain by sprocket wheels 6 fixed to both ends of a shaft driven by an air motor (not shown), for example. In this way, the roller chain 7 is pulled (driven) with a constant tension by the air motor.

If space allows, the sprocket wheel 5 may be directly driven by an air motor. The initial tension of the roller chain 7 is adjusted by the adjusting device 70. This adjusting device 70 moves, for example, an arc-shaped chain guide a-12 vertically adjustable along a vertical guide 71 by a jack bolt 73 provided on a bracket 72 of the guide 71. The initial tension of the chain 7 is adjusted by.

This initial tension adjusting device prevents the chain 7 from being derailed from the guide, and also allows the chain 7 to be reversed. In the vicinity of the roller chain 7 to which the clamp device 90 is connected, the roller chains 7, 7 on both sides are
As shown in FIG. 3, a plurality of cross members 10 are connected between them, and a plurality of clamp devices 90 are symmetrically connected to one of these cross members 10 by a connecting member, for example, a chain 11. It is connected so that it can move.

The chain 11 is made of wire to reduce the weight,
It can be substituted. The clamp device 90 is shown in FIG.
It has the configuration shown in. The clamp device 90 includes a device body 91, a pair of wedge-shaped metal pieces 92, and the wedge-shaped metal pieces 92.
And a screw 93 for advancing and retreating.

The thickness of the main body of the clamp device is made thinner than the gap between the bridle rolls to pass through and the gap between the bridle rolls when the snubber roll is opened. Device body 9
1 has a guide surface 91a and a clamp surface 91b having the same angle as the wedge angle of the wedge-shaped metal piece 92.

Then, in the figure, with the wedge-shaped metal piece 92 moved to the left side, the strip S is inserted between the apparatus main body 91 and the wedge-shaped metal piece 92, and the wedge-shaped metal piece 92 is slid to the right side by the screw 93. Thus, the strip S is clamped between the lower surface of the wedge-shaped metal piece 92 and the clamp surface 91b. For this reason, the lower surface of the wedge-shaped metal piece 92 is a rough surface.

In this example, the clamp device 90 is connected to the cross member 10 (FIG. 3) via the chain 11 which is a connecting member, and the connection metal piece 95 for this is rotated to the clamp body 91. Pin-connected as possible.

Then, the tip of the strip S is guided to a position A (FIG. 1) which is a standby position of the clamp device 90,
The tip of the strip S is clamped by the clamp device 90. In this case, the clamp device 90 is connected to the roller chain 7 which is a pulling (driving) member through a connecting member such as a chain or a wire so that it can move.
Even if the leading stop position of the strip S varies, it can be easily clamped.

The standby position A of the clamp device 90 is
Since there is a work space on the rear surface of the bridle roll 1, the clamping operation is easy. Further, in this case, the clamp device is movable, which is particularly advantageous.

In order to make the clamp device 90 stand by at the waiting position A, the roller chain 7 is provided with a striker d (FIG. 3), and a sensor f for detecting this striker d is provided (FIG. 1). , The roller chain 7 is stopped at the standby position.

On the other hand, when the strip S is passed through and the tip of the strip reaches the unclamping position B (FIG. 1) which is the guide range exit side point, the pulling (driving) of the roller chain 7 is stopped. For this purpose, a sensor e for detecting the striker d is provided (FIG. 1).

The operation procedure of the device of the present invention will be described below with reference to FIG. First, the tip of the strip S is guided to the clampable position A, and the tip of the strip S is clamped by using two clamp devices 90.

After clamping, start the automatic (a)
The pulling (driving) device 50 is driven to pull the roller chain 7 with a constant tension, and the chain 11 connected to the clamp device 90 and the strip S are wound in this order on the bridle roll to loosen.

After a certain period of time, the object roll of the sheet passing strip in the line including the roll is driven while the towing (driving) is performed with a constant tension to perform the sheet passing. If the tip of the strip passes through the snubber parts of the bridle rolls 1 to 4, the snubbers c-1,2,3,4 will be automatically closed to prevent slip between the strip and the roll and to drive the roller chain. Reduce.

When the tip of the strip reaches the unclamping position B, which is the exit point of the guide range, the sensor e detects the striker d attached to the roller chain 7, and the driving of the roller chain is automatically stopped.

After a certain period of time, the target roll of the strip is automatically stopped while the chain 11, which is a connecting member for connecting the clamp to the roller chain, is loose. Automatic (b) after removing the clamp device from the strip tip
To drive the roller chain.

When the clamp device reaches the standby position A, the sensor f detects the striker d attached to the roller chain, and the driving of the roller chain is automatically stopped. In this way, the clamp device is made to stand by at the stand-by position A in preparation for the next sheet passing operation.

This operation can be carried out in parallel with the continuous strip passing operation. The automatic (a) and automatic (b) operations are automatically controlled as normal sequence control by a controller (not shown).

In the above embodiment, the strip is pulled (driven) via the roller chain, but it may be pulled by a chain or a rope. Further, although the strip is held against the bridle roll by the snubber roll, it can be applied to the case where the strip is sandwiched by the upper and lower pinch rolls.

Further, although the clamp device shown in FIG. 4 is used as the clamp device, the clamp device is not limited to this. For example, a clamp device by turning on and off the magnet shown in FIG. 4 of Japanese Utility Model Publication 57-980. Good.

Although the guide 8 is arranged close to the bearing portion in the embodiment, it may be processed and attached to the bearing portion, or a sprocket wheel which can be separately rotated on the roll body or the roll bearing, The roller chain may be allowed to run.

[0033]

Since the clamp device at the strip tip is movably connected to the chain, the wire, or the rope, even if the induction stop position at the strip tip varies, a fine position adjustment work is required. The tip of the strip can be easily clamped.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing the overall configuration of an embodiment of the present invention.

FIG. 2 is an explanatory view of a positional relationship between a bridle roll, a snubber roll and a chain guide.

FIG. 3 is an explanatory view of a connected state of the clamp device to the roller chain.

FIG. 4 is an explanatory diagram of a clamp device.

FIG. 5 is an explanatory diagram of an operation flow.

[Explanation of symbols]

1-4 ... Bridle roll, 7 ... Roller chain, 8 ...
Chain guide, 50 ... Towing (driving) device, 70 ... Initial tension adjusting device, 90 ... Clamping device, A ... Standby position of clamping device, B ... Clamp releasing position.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kaoru Yokota 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Nihon Kokan Co., Ltd. (72) Mamoru Maekawa 1-2-1 Marunouchi, Chiyoda-ku, Tokyo Inside the Steel Pipe Co., Ltd. (72) Inventor Masaaki Koike 1 Shin-Nakahara-cho, Isogo-ku, Yokohama-shi, Kanagawa Ishi Kawashima Harima Heavy Industries, Ltd. Yokohama Engineering Center (72) Inventor Hisato Sato Shin-chu, Isogo-ku, Yokohama, Kanagawa Haramachi No. 1 Ishikawajima Harima Heavy Industries Ltd. Yokohama Engineering Center

Claims (1)

[Claims] 1. A strip line clamping roll is provided with a guide in which a chain, a wire, or a rope can run in or near a bearing portion of a threading roll or roller of a process line, in the vicinity of the bearing portion or the bearing portion. A strip threading device, which is movably connected to a chain, a wire, or a rope.