JPS6146203B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention is a rolling equipment that handles coiled strips, which corrects curling at the tip of the strip.
Concerning feed levelers used to make it easier to pass sheets through the line.

[Background of the invention]

In the continuous finishing line of rolling equipment, a feed leveler is almost always used in the process of unwinding a coil-shaped strip onto the line using an unwinder and threading the strip. This is because, when the strip is wound into a coil, it is often wound with very high tension or is annealed after being wound to permanently deform the coil.

In addition, since the width of each device on the line is narrow and each guide has a slight gap, it is difficult to thread the board while it is deformed, so it is necessary to flatten the tip or
In order to correct the upward angle and make it easier to thread the sheet,
A feed leveler is used. In addition, when making a line continuous, two unwinding machines are usually installed, each with its own front and rear equipment, to minimize lost time for connecting coils and to save on work efficiency and equipment costs. There is.

However, the desire to reduce product costs is increasing, and one way to do this is to reduce the entrance space, shorten the entire line, and make effective use of the building.
Alternatively, there is a need to reconsider the entrance equipment in order to reduce construction costs or to stabilize quality by reducing the number of scratches on the strip by shortening the line.

In order to meet these needs, by changing the unwinding machine to a carrousel type unwinding machine, the equipment upstream of the unwinding machine, such as a coil skid, coil conveyor, coil car, etc., can now be used in one set instead of the conventional two sets each. Naturally, the space on the entrance side can be expanded to meet your needs.

The problem at this time is the placement of the feed leveler that corrects the strip tip.

When a conventional feed leveler is adapted to a carousel type unwinding machine, strip tension fluctuations occur due to the repeated forward and reverse rotation of the drum unwinding position during line operation of the revolving axis of the carousel type unwinding machine. This could lead to a decrease in quality, or the control method for the carousel type unwinding machine would become complicated, resulting in increased costs and could not be realized.

[Purpose of the invention]

The object of the present invention is to provide a carrousel type unwinder with the same operating method as before, and the strip tip is the same as the conventional feed leveler technology, namely:
To provide a feed leveler suitable for a carousel type unwinding machine, which is more stable in quality than conventional ones.

[Embodiments of the invention]

Embodiments of the present invention will be described using the drawings.

FIG. 1 shows a conventional technique in which a coil 1 is unwound and passed through a feed leveler 3, and a strip 7 with a flat tip is cut off at the off-gauge part by a double cut shear 5.
The pinch roller 6 throws it into the line.
As described above, the next coil 2 passes through the feed leveler 4, processes the off-gauge with the double cut shear 5, waits for the completion of unwinding of the preceding coil, and after completion, welds the rear end of the preceding coil and the tip of the following coil. Connect and make it continuous.

FIG. 2 shows the arrangement on the entrance side of a carrousel type unwinding machine using the feed leveler of the present invention, which corresponds to the prior art shown in FIG. 1.

The off-gauge at the tip of the preceding coil 1 is unwound to a crop shear 10 by a pinch roller 9 and processed. The coil 1 whose tip has been processed is guided to a threading guide 12, guided to a feed leveler main body 3 to straighten the tip, and threaded to a pinch roller 6 by a threading guide 14. The drum 33 of the carousel type unwinder 16 moves from point A to point B,
That is, the coil 1 moves to point B and line operation is started. At this time, the feed leveler main body 3 must move from position C to position D. To explain this point, in FIG. 3, the feed leveler frame 13 is used as a guide frame by the lifting device 18', and the lifting frame 26 guided by the guide wheels 27 is lowered to point D. 3. Distributor 22, reducer 2
3. The motor 24 and slide base 25 are also lowered at the same time. At the same time, the strip held by the plate passing guide 14 is also lowered, and the state changes from B to D to F, resulting in a normal operating state.

The lifting devices 18 and 18' generally use hydraulic or pneumatic cylinders, but there are also systems using screws and nuts and electric or hydraulic motors.

In order to adjust the gap between the guide wheel 27 and the guide frame 13, the pin 30 is made eccentric, which is made possible by rotating the pin, and the pin is fixed by a rocker plate 32 to fix the pin in that position. With this method, the GAP can be easily readjusted in case of wear.

Next, to explain the trailing coil, first,
Like the preceding coil, it is inserted into the drum 33 at position A by the coil car 17. The treatment of off-gain at the tip of the coil and the threading to the feed leveler are the same as those of the preceding coil, but since the feed leveler body is the preceding coil, it drops from point C to point D and is not at point C. be. Therefore, the procedure for moving the feed leveler main body to point C will be explained.

In FIG. 3, the feed leveler main body at the lowest end, that is, point E, is guided by the moving device 34 to the lifting frame 26, and the held slide base 25 is side-shifted offline, and the feed leveler body is moved from the lifting device 18 to the lifting frame 26. The leveler main body 3 is lifted from point E to point C, and the state changes from A to C to F in FIG. 2, and the process waits for the completion of unwinding of the preceding coil, and then the same process is repeated. In the figure, 8 is a strip, 11 is a crop bucket, 13 is a feed leveler frame, 15 is a threading guide, 17 is a coil car, 19 is a work roller, 20 is a feed leveler frame, 21 is a spindle, and 28 is a feed. Roller pinch roller, 29 is bushing, 3
1 is a bearing.

The moving device 34 is generally a hydraulic or pneumatic cylinder, but may also be a screw, a nut, or an electric or hydraulic motor.

[Effects of the Invention] According to the present invention, it is possible to secure space or reduce the size of the building by omitting entrance equipment, and it is possible to significantly reduce the cost of the product.

[Brief explanation of the drawing]

FIG. 1 is a conventional system diagram, FIG. 2 is a system diagram of an embodiment of the present invention, and FIG. 3 is a view in the direction of the − arrow in FIG.
FIG. 4 is a view taken along the - arrow in FIG. 3, and FIGS. 5 and 6 are detailed views of the guide wheel. 3, 4...Feed leveler body (1), 13...
Feed leveler frame body, 20... Feed leveler frame, 25... Slide base, 26...
Lifting frame.

Claims (1)

[Claims] 1 A carousel type unwinding machine is provided with a plurality of feed levelers for straightening the curly strip and sending it out to the line, and a common feed leveler frame body for accommodating the plurality of feed levelers is provided, and each The feed leveler is provided with a base on which the feed leveler main body is mounted, the base is held, and a moving device is mounted and engaged with the base, and by operation of the moving device. A frame is provided that allows the base to be side-shifted, the frame engages with a lifting device mounted on the feed leveler frame, and moves up and down using the feed leveler frame as a guide frame, and the common feed leveler A feed leveler characterized in that each of the feed leveler main bodies having the above-described structure are arranged on the left and right sides of the line center on the frame body.