JPH05247542A - Automatic strip running device for steel strip - Google Patents

Abstract

(57) [Summary] [Purpose] In the recoiling work, the steel strip is threaded automatically, safely and reliably. [Structure] On the payoff table exit side 14, a tight wind loop control strip passing device 1 moves an idle roll 2 to a strip passing position. Next, the payoff table 14 is rotated to guide the tip of the steel strip 3 pulled out from the loose coil 3a to the idle roll 2,
The steel strip 3 is passed while being guided by sandwiching the steel strip 3 by the idle roll 2. On the downstream side of the tension drum 15, the steel strip 3 is guided by the tension drum exit side leveler 16 and passed over the surface of the horizontal guide roll 17, and then wound around the tight coil 3b in the rotating tight coil table 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is intended for passing a steel strip drawn from a loose coil placed on a loose coil payoff table with its axis perpendicular to a tight coil table in a thin plate manufacturing process such as in the steel industry. ,
The present invention also relates to an automatic threading device for threading from a tight coil on a tight coil table to a loose coil rewind table.

[0002]

2. Description of the Related Art For example, in an open annealing recoiling threading work in a cold-rolled steel sheet manufacturing process, a loose coil conventionally placed on a loose coil pay-off table (hereinafter referred to as "pay-off table") with its axis line vertical. The steel strip drawn from the steel strip is passed up to the tight coil table and wound around the tight coil. In addition, a work from a tight coil table to a loose coil rewind table (hereinafter, referred to as a "rewind table") is performed and wound around a loose coil.

FIG. 13 is a plan view showing a conventional steel strip passing device. The recoiling device includes a payoff table 14, a tension drum 15, a tight coil table 20, a rewind table 31, and a tight wind loop control 24 arranged to pass a steel strip between these devices. It consists of a threading device.

[0004]

In the conventional recoiling, since most of the steel strip threading work is performed manually by an operator, the following problems such as manual labor, safety and fatigue of the operator are shown. There were many problems. (1) Passing work from the payoff table to the tight coil table: When the steel strip unwound from the payoff table 14 passes, it is necessary to move the idle roll 2 from the standby position to the passing position. Although the worker was pushing this manually, the pushing force is heavy work because the idle roll 2 is constantly subjected to the force to move to the standby position by the tension mechanism. When passing the tip of the steel strip from the tension drum 15 to the tight coil table 20 to prevent the steel strip from falling in the middle, an operator manually holds the steel strip, lifts, pulls, pushes, etc. It was hard work and dangerous because it had to be guided.

(2) Even during the strip running work from the tight coil table 20 to the rewind table 31, the worker holds, lifts, pulls and pushes and guides the steel strip so that the steel strip does not fall down on the way. It was hard work and dangerous because it had to be done.

As described above, since the workers involved in the work of the conventional strip passing device are hard and dangerous, it is desired to develop a device capable of reducing the work, saving labor and automating the work. However, such a device has not been proposed yet.

Therefore, an object of the present invention is to provide a steel strip which can automatically, safely and reliably perform a recoiling threading work for rewinding a loose coil to a tight coil or a tight coil to a loose coil. It is to provide an automatic threading device.

[0008]

SUMMARY OF THE INVENTION The present invention provides a tight wind loop control stripping device for stripping a steel strip drawn from a coil placed on a loose coil payoff table with its axis vertical. The tension drum exit leveler provided on the downstream side of the tension drum, the tight coil table exit leveler provided on the downstream side of the tight coil table, and the tight coil on the tight coil table are provided on the tight coil table exit leveler. It is characterized in that it has a coil pressing roll for guiding and a loose coil rewind table entry side leveler provided between the coil table exit side leveler and the loose coil rewind table.

Next, the present invention will be described with reference to the drawings. 1 to 12 show one embodiment of the present invention.
1 is a plan view showing the whole threading apparatus of the present invention, FIG. 2 is a plan view showing a tight wind loop control threading apparatus, FIG. 3 is a side view, and FIG. 4 is a plan view showing a tension drum exit leveler. 5 is a side view, FIG. 6 is a plan view showing a coil pressing roll, FIG. 7 is a side view, FIG. 8 is a plan view showing a tight coil table outlet side leveler and a loose coil rewind table inlet side leveler, and FIG. 9 is FIG. Of FIG. 10, FIG. 10 is a view of B of FIG. 8, FIG. 11 is a view of C of FIG.
2 is a view on arrow D in FIG.

As shown in FIGS. 1, 2 and 3, a loose coil is mounted on a rotatable circular payoff table 14.
3a is placed with its axis vertical. Tight wind loop control strip running device 1 is idle roll 2
A frame 7, a cylinder 8 as a frame moving mechanism, a cylinder 10 at the tip of the frame 7, a pinch roll
It consists of 11 and. On the downstream side (outward side) of the payoff table 14, a plurality of idle rolls 2 rotatably mounted by a frame 5 with their axes perpendicular to each other are arranged in an arc shape. The frame 5 has its downstream end pivotally supported, and can move between the plate passing position and the standby position shown by the broken line in FIG. 2 with this downstream end as a fulcrum. Further, the frame 5 is always applied with a force to move to the standby position side by a tension mechanism (not shown).

The frame 7 comprises a moving frame 7a and a fixed frame 7b. The cylinder 8 is attached to the fixed frame 7b, and the tip of the rod 8a of the cylinder 8 is attached to the moving frame 7a. By moving the cylinder 8 to expand and contract (stroke) the rod 8a, the moving frame 7a can be moved horizontally. Also,
A roller 37 is attached to the tip of the moving frame 7a, and the roller 37 comes into contact with the end 5a on the upstream side of the frame 5. The frame 5 is pushed by the roller 37 at the tip of the moving frame 7a, so that the frame 5 can be moved from the standby position to the threading position together with the idle roll 2 with its downstream end as a fulcrum.

The moving frame 7a is erected vertically,
Two cylinders 10 having horizontal rods 10a are attached to the upper and lower parts thereof. A pinch roll 11 is axially supported between the tips of the upper and lower rods 10a with the axis line vertical. Further, a drive source 12 is attached to the upper end of the moving frame 7a. The rotary shaft of the drive source 12 is attached to the shaft of the pinch roll 11 via a joint 13, and the pinch roll 11 can be driven and rotated. The pinch roll 11 is pressed toward the idle roll 2 by the two cylinders 10, and the moving steel strip is sandwiched between the idle roll 2 and the pinch roll 11 to guide the threaded plate.

A cylinder 4 is attached to an intermediate portion of the moving frame 7a, and a back guide 6 is attached to the rod 4a.
Are attached in an arc shape. The cylinder 4 is operated to move the back guide 6 in the direction of the idle roll 2 to guide the steel strip 3 through the plate.

As shown in FIGS. 1, 4 and 5, a tension drum delivery side leveler 16 is provided downstream of the tension drum 15. Tension drum exit leveler
16 comprises a plurality of horizontal guide rolls 17 and side guides 18. The horizontal guide roll 17 is provided along the pass line 9 with its axis orthogonal to the pass line 9 of the steel strip. In addition, the horizontal guide roll 17 has a cylinder 37 which is provided with a rod 37a vertically below it.
It is attached to the upper end of and can be raised and lowered by its operation. The side guides 18 are provided upright along the pass line 9 on both sides in the width direction of the pass line 9 on the horizontal guide roll 17. The downstream side portion of the side guide 18 has a stretchable portion 18a that is stretchable toward the tight coil table 20 side. On both outsides of the side guides 18, there are horizontal rods.
A cylinder 19 having a 19a is provided. Rod 19a
Is attached to the side guide 18, and the expansion / contraction portion 18a of the side guide 18 is expandable / contractible by operating the cylinder 19.

As shown in FIGS. 1, 8, 9 and 10, a tight coil table outlet side leveler 21 is provided on the downstream side of the tight coil table 20. Tight coil table exit leveler 21 has multiple horizontal guide rolls 22
And side guide 23. Horizontal guide roll
22 is provided along the pass line 9 with its axis orthogonal to the pass line 9 of the steel strip. The horizontal guide roll 22 is attached to the upper end of a cylinder 35 provided below the rod 35a with the rod 35a vertically, and is vertically movable by its operation. The side guides 23 are erected on both sides of the horizontal guide roll 22 in the width direction of the pass line 9 along the pass line 9. The upstream side portion of the side guide 23 has a telescopic portion 24a that is telescopic toward the tight coil table 20 side. Cylinders 25 having horizontal rods 25a are provided on both outer sides of the side guides 23. The rod 25a is attached to the side guide 23, and the extensible part 23a of the side guide 23 can be extended and retracted by operating the cylinder 25.

As shown in FIGS. 1, 6 and 7, the tight coil table 20 is provided with a coil pressing roll 26. The coil pressing roll 26 includes an arm 27 and a magnet roll 28. Base end 27a of arm 27
Is rotatably supported by the vertical axis 29 and the horizontal axis 30.
It is movable up and down and left and right around the fulcrum. Further, the tip of the arm 27 can be expanded and contracted by a mechanism (not shown). A cylindrical magnet roll 28 is rotatably supported by the tip 27b of the arm 27 such that the axis of the magnet roll 28 is vertical. The magnet roll 28 adsorbs the surface of the tight coil 3b on the tight coil table 20 by an electromagnetic force, and the steel strip 3 according to the outer diameter of the tight coil 3b.
It is designed to guide the threaded plate at the tip of.

As shown in FIGS. 1, 8, 11 and 12, a loose coil rewind table entry leveler (hereinafter referred to as “rewind table entry”) is provided between the tight coil table exit leveler 21 and the rewind table 31. 32 called "side leveler". The rewind table entry side leveler 32 includes a plurality of horizontal guide rolls 33 and side guides 34. The horizontal guide roll 33 is provided along the pass line 9 with the axis line orthogonal to the pass line 9 of the steel strip 3. Also, horizontal guide roll
33 is attached to the upper end of a cylinder 36 which is provided with a rod 36a vertically below it, and can be moved up and down by its operation. The horizontal guide rolls 33 are erected on both sides of the pass line 9 in the width direction along the pass line 9.

[0018]

Next, the process of the present invention will be described. Threading work from pay-off table to tight coil table: tight wind loop control threading device 1
In, the moving frame 7a is moved to move the idle roll 2 to the plate passing position. Then, the pinch roll 11 is rotated to open the back guide 6. The payoff table 14 is rotated to guide the tip of the steel strip 3 pulled out from the loose coil 3a to the idle roll 2, the pinch roll 11 and the idle roll 2 sandwich the steel strip 3, and the back guide 6 guides it. Pass the steel strip 3. While the steel strip is passing, the moving frame 7a is moved away from the plate passing position. Idol roll 2
Is pressed against the steel strip 3 by a tensioning mechanism. When the threading is completed, the tension mechanism also moves the idle roll 2 to the standby position.

In the tension drum outlet leveler 16, the horizontal guide roll 17 is raised to match the height of the pass line 9 of the steel strip 3. Also, the side guide 18
To the tight coil table 20 side. Steel strip 3 moved along the outer circumference of the rotating tension drum 15.
Passes on the surface of the horizontal guide roll 17 while being guided by the side guide 18 of the tension drum exit leveler 16 on the downstream side of the tension drum 15. As described above, since the height of the horizontal guide roll 17 that can be raised and lowered can be adjusted to the height of the pass line 9 of the steel strip 3, the plate can be smoothly passed, and the side guide 18 is located on the tight coil table 20 side. It is stretched and the steel strip 3 does not fall. The steel strip 3 that has passed through the tension drum outlet-side leveler 16 is wound into a tight coil on the rotating tight coil table 20.

Sheet passing work from the tight coil table to the loose coil rewind table: The tight coil 3a is placed on the tight coil table 20. Rotate the tight coil table 20. The coil pressing roll 26 is operated, the steel strip is attracted by the magnet roll 28 at the tip of the arm 27, and the operation is stopped at a position where it can be easily guided to the tight coil table delivery side leveler 21 according to the outer diameter of the tight coil 3a. Next, the tight coil table exit side leveler 21
The horizontal guide roll 22 of the above is raised to match the height of the pass line 9 of the steel strip 3. Further, the side guide 23 is extended to the tight coil table 20 side. The steel strip 3 unwound from the tight coil 3 a on the tight coil table 20 while being guided by the coil pressing roll 26 passes over the surface of the horizontal guide roll 22 while being guided by the side guide 23. Horizontal guide roll that can be raised and lowered
As described above, since the height of 22 can be adjusted to the height of the pass line 9 of the steel strip 3, the passage is smooth, and the side guide 23 is the tight coil table 20.
Since it extends to the side, the steel strip 3 does not fall down.

The steel strip 3 which has passed through the tight coil table exit side leveler 21 is rewind table entrance side leveler 32.
Move to. At the rewind table entry side leveler 32, the horizontal guide roll 33 is raised to match the height of the pass line 9 of the steel strip 3. The steel strip 3 that has passed the tight coil table exit side leveler 21 passes over the surface of the horizontal guide roll 33 while being guided by the side guide 34. The horizontal guide roll 33 that can be raised and lowered is
As described above, since the height can be adjusted to the pass line 9 of the steel strip 3, the passing plate is smooth,
Further, the steel strip 3 does not fall down due to the guide by the side guide 34. The steel strip 3 that has passed the rewind table entry side leveler 32 is wound around a loose coil in the rotating rewind table 31.

[0022]

As described above, according to the present invention, the following industrially useful effects are brought about. Labor saving and automation of the steel strip passing operation are achieved. Workers are free from danger and hard work. Since the tip of the steel strip can be guided and threaded automatically, safely and surely, effects such as stabilization of operation can be expected.

[Brief description of drawings]

FIG. 1 is a plan view showing the entire plate passing device of the present invention.

FIG. 2 is a plan view showing a tight wind loop control strip passing device.

FIG. 3 is a side view showing a tight wind loop control strip passing device.

FIG. 4 is a plan view showing a tension drum delivery side leveler.

FIG. 5 is a side view showing a tension drum output leveler.

FIG. 6 is a plan view showing a coil pressing roll.

FIG. 7 is a side view showing a coil pressing roll.

FIG. 8 is a plan view showing a tight coil table output side leveler and a loose coil rewind table input side leveler.

9 is a view on arrow A of FIG.

FIG. 10 is a view on arrow B of FIG.

FIG. 11 is a view on arrow C in FIG.

FIG. 12 is a view on arrow D in FIG.

FIG. 13 is a plan view showing a conventional steel strip passing device.

[Explanation of symbols]

 1 Tight wind loop control plate passing device 2 Idle roll 3 Steel strip 3a Loose coil 3b Tight coil 4 Cylinder 4a Rod 5 Frame 5a End 6 Back guide 7 Frame 7a Moving frame 7b Fixed frame 8 Cylinder 8a Rod 9 Pass line 10 Cylinder 10a Rod 11 Pinch roll 12 Drive source 13 Joint 14 Payoff table 15 Tension drum 16 Tension drum exit side leveler 17 Horizontal guide roll 18 Side guide 18a Telescopic part 19 Cylinder 19a Rod 20 Tight coil table 21 Tight coil table exit side leveler 22 Horizontal guide roll 23 Side guide 23a Telescopic part 24 Tight wind loop control 25 Cylinder 25a Rod 26 Coil holding roll 27 Arm 27a Base end 27b Tip 28 Magnet roll 29 Vertical axis 30 Horizontal axis 31 Loose coil rewind test Bull 32 loose coil rewinding table entry side leveler 33 horizontal guide roller 34 side guide 35 cylinder 35a rod 36 cylinder 36a rod 37 rollers.

Claims (6)

[Claims] 1. A tight wind loop control plate passing device for passing a steel strip drawn from a coil placed on a loose coil pay-off table with its axis perpendicular to the loose coil pay-off table, and provided on the downstream side of a tension drum. Tension drum exit leveler, a tight coil table exit leveler provided downstream of the tight coil table, and a coil pressing roll for guiding the tight coil on the tight coil table to the tight coil table exit leveler. And a loose coil rewind table entry side leveler provided between the coil table exit side leveler and the loose coil rewind table. 2. The tight wind loop control plate passing device comprises: an idle roll rotatably mounted with an axis vertical, a horizontally movable frame; A frame moving mechanism for abutting the idle roll on a shaft-mounted frame to push the idle roll to the platen position, and a rod installed horizontally at the tip of the frame with a rod horizontal.
Machine cylinder and a pinch roll which is rotatably supported by a drive source and is axially supported between the tips of the rods of the two machine cylinders with the axis perpendicular to the rod. The automatic strip passing device for steel strip according to claim 1, wherein the steel strip is sandwiched by being pressed in the direction of the idle roll. 3. The tension drum exit leveler comprises a plurality of horizontal guide rolls which are vertically movable and are provided along the path line of the steel strip with the axis line orthogonal to the path line, and the width direction of the path line. The steel strip automatic threading device according to claim 1, comprising side guides that are erected on both sides along the pass line and that can extend and contract toward the tight coil table side. 4. The tight coil table outlet side leveler comprises a plurality of horizontal guide rolls which are vertically movable and are provided along the path line of the steel strip with their axes orthogonal to each other, and the width of the path lines. 2. The automatic strip passing device for steel strip according to claim 1, comprising side guides that extend up and down on the tight coil table side and are erected on both sides in the direction along the pass line. 5. The coil pressing roll has an arm having a base end axially supported and movable in vertical and horizontal directions with the base end as a fulcrum, and a distal end portion of the arm being expandable and contractable, and an axis line extending from the distal end of the arm. And a cylindrical magnet roll rotatably rotatably supported vertically, and the surface of the tight coil on the tight coil table is attracted by the magnetic force of the magnet roll to guide the steel strip at the tip of the steel strip. Item 1. An automatic strip passing device for steel strip according to item 1. 6. The loose coil rewind table entry-side leveler comprises a plurality of horizontal guide rolls which are vertically movable and are provided along the path line of the steel strip so that an axis line thereof is orthogonal to the path line of the steel strip. The steel strip automatic threading device according to claim 1, comprising side guides provided upright along the pass line on both sides in the width direction.