JPH02108416A - Apparatus for changing lower roll stand - Google Patents

Abstract

PURPOSE:To reduce maintenance change time and labor and to perform laborsaving by lifting up the lower roll stand through the movement of an upper roll head and loading the roll on wheels fit on the lower roll stand to take out. CONSTITUTION:When removing the lower roll stand 2, hanging bars 22,23 are inserted into holes of the upper roll head, hanging jigs 20 are fit between the bar 22 and pin 8 and between the bar 23 and pin 9 respectively. Then, lifting shafts 4,5 are ascended by a power source, the lower roll stand 2 is drawn up upward. When the lower face of the wheels 6,7 provided on the stand 2 are ascended several mm higher than the same plane of the rail parts 16,17 of the upper part of the sliding member 15, the ascending of the upper roll head 3 is stopped. Then, a short rail 13 is inserted between ascending grooves of the wheels 6,7 through a cylinder 1, the roll head 3 is lowered to put the wheels 6,7 on the rail, and to take off the jigs 20. After that, the stand 2 is taken out frontward to hang through the crane and to take out outside the line.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a roll changing device for a leveler in a shear line.

<Conventional technology> Conventionally, each roll of a leveler was fixed to the leveler body, and when cleaning the rolls, replacing damaged rolls, or when the rolls were worn out and abrasive, the leveler had to be disassembled and the rolls removed. However, this work required a lot of effort and time.

Problems to be Solved by the Invention It is an object of the present invention to provide a device in which only the roll portion can be easily removed without disassembling the main body when removing the roll for cleaning/replacement or polishing. Means for solving the problem〉 Using a mechanism in which the upper roll head to which the upper roll is attached rises and lowers, the lower roll stand is lifted by the movement of the upper roll head, and the roll is placed on the wheels attached to the lower roll stand, and the front This objective is achieved by using a means of replacing the lower roll stand with the entire roll by pulling it out.

<Example> A lower roll stand 2 bearing a roll is provided between the sliding members 14 and 15 of the pet 1, and wheels 6.7 are provided in a direction in contact with the sliding surface of the lower roll stand.

On the other hand, grooves 18.19 are provided in the sliding members 14.15 for the wheels 6.
．． Fit 7. Also, the upper surface 16% of the sliding member 14.15
'7 is the rail part. A short rail 13 having the widthwise dimensions of the groove 18.19 of the sliding member 14.15 is provided so that it can be fitted into the groove by the cylinder 12. Further, a pin 8.9 for hanging a hanging wire is fixedly installed on the lower roll stand.

On the other hand, an elevating shaft 4.5 is attached to the upper roll head 3 so that it can be raised and lowered electrically. The father roll head 3 is provided with a hole 10° 11, and is configured to allow a hanging bar 22 to be inserted therein. The above is the configuration of the present invention.

Function> When removing the lower roll stand 2 on which the roll is supported, first insert the hanging bar 22.2 into the hole 11 of the upper roll head.
3, and then attach the hanging jigs 20 and 21 between the hanging bar 22 and the pin 8, and between the hanging bar 23 and the pin 9. Next, when the lifting shaft 4.5 is raised by the power source, Lower roll stand 2 is raised σ1 upwards.

The upper roll head stops rising when the lower surface of the wheel 6.7 provided on the lower roll stand 2 rises several degrees above the rail portion 16.17 on the upper part of the sliding member 14.15. Next, the cylinder 12 is driven to insert the short rail 13.14 between the raised grooves 18.190 of the wheel 6.7. After that, lower the upper roll head 3 a little and move the wheel 6.
7 on the rail and remove the jigs 20 and 21. After that, the lower roll stand 2 is pulled out to the front, hung by a crane, and taken out of the line. Next, insert the spare lower roll stand 2 and attach it by the reverse method described above. The removed lower roll stand 2 is cleaned outside the production line, and the roll is replaced if necessary.

<Effects of the Invention> Conventionally, polishing and replacing the leveler was done by disassembling the leveler body, but with the present invention, only the part where the roll is supported can be removed in a cassette style, which significantly reduces maintenance and replacement time and labor. This is a useful invention as it can shorten the time and save labor.

[Brief explanation of drawings]

Fig. 1 is a partially sectional side view of the present invention, and Fig. 2 is an explanatory diagram showing a state in which the upper roll head is raised and the lower roll stand is suspended. l - Bed 2 - Lower roll stand 3 - Upper roll head 4.5 - Lifting shaft 6.7 - Wheel 8.9 - Pin io, ll - Hole 12 - Cylinder 13 - Short rail 14.15 - Sliding member 16. 1? -Rail part 18.19 - Groove 20.21 - Hanging jig 22.23 - Hanging bar Application agent Hisashi Matsumoto

Claims (1)

[Claims] A mechanism for suspending a lower roll stand of the leveler from the upper roll head of the leveler, a groove in the sliding member of the lower roll stand in which a wheel provided on the side surface of the lower roll stand can move, and a rail provided on the upper part of the sliding surface; A lower roll stand exchange device for a leveler, comprising a short rail that is inserted into a part of the rail that is partially opened by a groove.