Title of Invention

A METHOD AND A DEVICE FOR CHANGING SHEARS FOR TRANSVERSE CUTTING OF STRIPS OR SHEET METAL IN THE ROLLING OR TRANSPORT LINE

Abstract A method for changing shears (3) for transverse cutting of strips (1) or sheet metal in the rolling or transport line (x-x) with a rolling table (2) with blade holders (4, 4') which are respectively arranged above and below the strip (1) and which are guided by means of holding elements (5, 5'; 6, 6'), characterized in that the shears (3) together with the blade holders (4, 4') and the holding elements (5, 5'; 6, 6') thereof are, when shears are disposed in the rolling or transport line, moved out of the rolling line (x-x) to the side into a neutral waiting position after each cut and before movement out the shears (3) the front connection between the blade holders (4, 4') or between the holding elements (6, 6') engaging over the rolling line (x-x) is opened and that for a succeeding cut the shears (3) are moved into the rolling line and engages over this V-shape and that the front connection is closed before a following cut and coupled in shape locking and force-locking manner with use of a clamping element (7 or 32), wherein with the movement the shears (3) into the rolling or transport line (x- x) a part (2') of the rolling table (2) is pushed out of the rolling or transport line (x-x) to the side and the part (2') of the roller path is pushed back into the rolling or transport line (x-x) simultaneously with the movement of the shear(s) out of this and into the waiting position.
Full Text

Translation of Amended Pages ("Druckexemplar") of WO 00/05019 (PCT/EP99/05115)
Method and Device for Exchanging Shears in the Cutting to Length of Strips or Sheets in the Rolling or Transport Line
The invention relates to a method for exchanging shears in the
getting to length of strips or sheet metal in a rolling or
transport line, in particular, on a rolling table, with blade
holders one being positioned above and one being positioned below
the strip, which blade holders are guided by means of holding
elements. The invention also relates to a device for performing the






enternal ro the Strip width, can be positively connected for the
purpose of receiving the shearing forces.


holder and the lower blade holder of the shears are positioned so in to freely project above and below the strip or the sheet metal,


Fig. 4 in a front view the shears with coupling rods for the coupling of the machine frame of the shears;
Fig. 5 in a side view the front part of the shears with a
foldable clamping element;
Fig. 6 in a front view the shears with the foldable clamping element according to Fig. 5.
The device illustrated in Fig 1 for cutting to length strips 1 or
sheet metal in the rolling line x~x, in particular, on a rolling
table 2, shows the shears 3 in a position shortly before performing
a cut, with arms 22, 29 of its machine frame 20 still open. The
shears 3 have a drive apparatus 8 with reducing gear 8' as well as
a synchronization gear 12 flanged onto the frame 20. The shears 3
are moveable, inclusive of its drive apparatus, by means of a drive
10 and a drive carriage 9 guided on rails transverse to the rolling
or transport line x-x. The drive carriage 9 is coupled with a
movable part 2' of the rolling table 2 and is moved together with
the shears 3 such that it is positioned external to the rolling
line x-x when the shears 3, as illustrated in Fig. 1, are
positioned in the rolling line x-x and, conversely, is rejoined
again with the rolling table 2 when the shears 3 are moved out.
As also illustrated in Fig. 1, at the rolling table side at least one clamping element 7 with actuating members 11, 25, 30, 36 is arranged. The actuating members in the present embodiment are hydraulic piston-cylinder units and are referred to as force means. On the rolling table side of the frame arms 22, 29, the holding elements 6, 6' overlapping the rolling line x-x are provided which

receive bearings (not illustrated) for oppositely rotatable rotors of the blade holders 4, 4'.
In the drive side area of the machine frame 20, identical holding elements 5, 5' are provided which also receive the drive side bearings of the blade holders 4, 4'.
The U-shaped open side of the machine frame 20 has correlated therewith the clamping element 7 for coupling the holding elements 6, 6 at the rolling table side. According to the illustration in Figs* 2 and 3, this clamping element 7 is configured for a positive and non-positive connection of the holding elements 6, 6'.
According to Fig. 2 and Fig. 3, a hydraulic force means 11 is provided for lifting the clamping element 7 into the gliding paths 26' 26' or for lifting it out of it. Moreover, the Figs. 2 and 3 show that the holding element 6 has two pressure plates 23, 23 • at the free end of the upper, horizontal frame arm 22, that the clamping element 7 has congruent gliding plates 24, 24', that the holding element 6' has two pressure plates 37, 37', and that the clamping element 7 has congruent gliding plates 38, 38' . The clamping element 7 is slidable by force means 25, 25' on a horizontal gliding path 26, 26' with its gliding plates 24, 24' and 38, 38' across the pressure plates 23, 23' and 37, 37' for generating a positive and non-positive coupling.
In Fig. 4 an alternative embodiment of the coupling device between the upper frame arm 22 and the lower frame arm 29 of the machine frame 20 of the shears 3 is illustrated. In this connection, it is provided that the securing element 6 is embodied at the free end of

the upper horizontal frame arm 22 with coupling rods 32, 32' with spindle drive 31, wherein the coupling rods are connected to be pivotal to both sides.
The coupling rods 32, 32' can be engaged via lower recesses 21, 27' and 39, 39' by congruent coupling sockets 28, 28' and 40, 40' of the lower frame arm 29 of the machine frame 20 and are adjustable by a force means 30. The coupling rods 32, 32' are moved with the aid of their spindle drives 31, 31' into the position in which the recesses 39, 39' rests against the coupling sockets 40, 40' for generating a positive and non-positive connection.
In addition, Fig. 4 shows in an illustrative way the configuration of the drive carriage 9 with wheel flanges 13, 13' on the guide rails 14, 14' .
A further alternative configuration of the connection at the open
side of the shears 3 is illustrated in Figs- 5 and 6. In this
embodiment, the clamping element 7 arranged transversely to the
arms 22, 29 of the machine frame 20 is formed with a joint 34 with
pivot axis 35 extending parallel to the rolling line. With the aid
of the force means 36, 36', the clamping element 7 is folded
upwardly for coupling the two frame arms 22, 29 and is folded
downwardly for canceling the coupling position. The clamping
element 7 which can be folded up or down as well as the coordinated
force means 36, 36' are arranged on the drive carriage 9. In this
configuration, the lower pressure plates 23, 23' in the closed
position interact with the glide plates 24, 24' that can be moved
on top of them and this results in a positive as well as non-

positive connection of the two arms 22 and 29 of the machine frame
20.
The different configurations show flying or stationary shears for cutting to length strips or sheet metal which shears can be moved in and out of the rolling line or the rolling table while the strip
1 or the sheet metal is moved in the line x-x on the rolling table
2 in the rolling table direction or is standing still- Because the shears are moved in only directly before the cut, the rolling table remains open in the upward direction and can remain freely accessible after mounting of the shears. The shears can be serviced outside of the line and/ in the case of a disruption, can be moved quickly out of the line.

List of Reference Numerals
1 strip/sheet metal
2, 2 ' rolling table
3 shears
4, 4' blade holder
5, 5' holding element
6, 6' holding element

7 clamping element
8 drive apparatus 8' gear
9 drive carriage 10 drive
11 force means
12 synchronization gear
13, 13' wheel flanges
14, 14' guide rails
2 0 machine frame
21 coupling elements
22 upper frame arm

23, 23' pressure plates
24, 24' gliding plates
25, 25' force means
26, 26' gliding path
27, 27' recess
28, 28' coupling sockets 2 9 lower frame arm
30 force means
31 spindle drive
32, 32' coupling rod
34 joint

35 pivot axis
36, 36' force means
38, 38' gliding plates
39, 39' recesses



New Claims
1. A method for exchanging shears (3) in the cutting to length of strips (1) or sheet metal in the rolling or transport line (x-x), in particular, on a rolling table (2), with blade holders {4, 4')/ one arranged above and one arranged below the strip (1), which blade holders are guided by means of holding elements (5, 5'; 6, 6'), characterized in that the shears (3) can be moved together with the blade holders {4, 4') and with their holding elements (5, 5'; 6, 6') after each cut out of the rolling line (x-x) to the side into a neutral waiting position, while the strip or sheet metal is in the rolling or transport line, and that, before moving out the shears 3, the forward connection between the blade holders (4, 4') or between the holding elements (6, 6') overlapping the rolling line (x-x) is opened, and that the shears (3} for a subsequent cut are moved into the rolling line so as to overlap it in a U-shape, and that the forward connection is closed and, by employing a clamping element (7 or 32), is coupled positively, and non-positively before a subsequent cut, wherein, when moving the shears (3) into the rolling or transport line (x-x), a part (2M of the rolling table (2) is moved out of the rolling or transport line (x-x) to the side and, simultaneously with moving the shears (3) out of the rolling or transport line (x-x) into the waiting position, the part (2') of the rolling table is again moved into the rolling table*
2, A device for exchanging shears (3) in the cutting to length of strips (1) or sheet metal in a rolling or transport line, in

particular, on a rolling table (2), for performing the method according to claim 1, characterized in that the shears (3), inclusive of the drive apparatus (8), are arranged on a rail-guided drive carriage (9) which while the strip or sheet metal is positioned in the rolling or transport line, is movable by means of a drive (10) transverse to the rolling or transport line (x-x), wherein the shears (3) comprise a U-shaped frame (20) open toward the rolling or transport line (x-x) and closed at the drive side, on which, at the drive side as well as the rolling table side, holding elements (5, 5'; 6, 6') are provided having bearings for the blade holders (4, 4') arranged therein, and wherein the drive carriage (9) is coupled with a movable part (2') of the rolling table (2).
3. A device according to claim 2, characterized in that the drive carriage (9) at the rolling table side receives at least one clamping element (7) with actuating members (11, 25, 30, 36),
4. A device according to claim 2 or 3, characterized in that the U-shaped open side of the frame (20) has correlated therewith a clamping element (7) coupling together the holding element (6, 6') at the rolling table side.
5. A device according to one or more of the claims 2 to 4, characterised in that the clamping element (7) is provided with coupling elements (21) for coupling with the holding elements (6, 6*) of the frame arms (22, 29),
6. A device according to one or more of the claims 2 to 5, characterized in that the holding element (6) at the free end

of the upper, horizontal frame arm (22) comprises at least one pressure plate (23, 23') and the clamping element (7) has congruent gliding plates (24, 24' and 38, 38') for overlapping them., and that the clamping element (7) is movable by force means {25, 25') on a horizontal gliding path (26, 26') with its gliding plates (24, 24' and 38, 38') across the pressure plates (23, 23' and 37, 37) for generating a positive and non-positive coupling-
7. A device according to one or more of the claims 2 to 6, characterized in that the holding element (6) at the free end of the upper horizontal frame arm (22) is provioed with threaded spindle coupling rods (32, 32') connected so as to be pivotable to both sides, which, by means of recesses (27, 27' and 39, 39'), are engageable in congruent coupling sockets (28, 28') of the lower frame arm (29) or in the congruent coupling sockets (40, 40') of the upper holding element (6) and adjustable by a force means (30) for generating a positive and non-positive connection with the aid of their spindle drives (31, 31').
8. A device according to one or more of the claims 2 to 7, characterized in that the clamping element (7) correlated transversely to the frame arms (22, 29) can be folded upwardly by means of a joint (34) with a pivot axis {35) extending parallel to the rolling line with the aid of at least one force means (36) for coupling of the two frame arms (22, 29) or folded down for releasing the coupling of the frame arms.

9. A method for exchanging shears in the cutting to length of strips or
sheet metal in the rolling or transport line substantially as herein
described with reference to the accompanying drawmgs.
10. A device for exchanging shears in the cutting to length of strips or
sheet metal in the rolling or transport line substantially as herein
described with reference to the accompanying drawings.


Documents:

abs-in-pct-2001-150-che.jpg

in-pct-2001-150-che-abstract.pdf

in-pct-2001-150-che-claims filed.pdf

in-pct-2001-150-che-claims granted.pdf

in-pct-2001-150-che-correspondnece-others.pdf

in-pct-2001-150-che-correspondnece-po.pdf

in-pct-2001-150-che-description(complete)filed.pdf

in-pct-2001-150-che-description(complete)granted.pdf

in-pct-2001-150-che-drawings.pdf

in-pct-2001-150-che-form 1.pdf

in-pct-2001-150-che-form 19.pdf

in-pct-2001-150-che-form 26.pdf

in-pct-2001-150-che-form 3.pdf

in-pct-2001-150-che-form 5.pdf

in-pct-2001-150-che-other documents.pdf

in-pct-2001-150-che-pct.pdf


Patent Number 211958
Indian Patent Application Number IN/PCT/2001/150/CHE
PG Journal Number 02/2008
Publication Date 11-Jan-2008
Grant Date 13-Nov-2007
Date of Filing 01-Feb-2001
Name of Patentee M/S. SMS SCHLOEMANN-SIEMAG AKTIENGESELLSCHAFT
Applicant Address Eduard-Schloemann-Strasse 4, 40237 Dusseldorf,
Inventors:
# Inventor's Name Inventor's Address
1 Horst GRAFE Talsperrenstrasse 3, D-57271 Hilchenbach,
2 Barbara LADDA-ZUNK In der Delle 1, D-57271 Hilchenbach,
3 Max MUNKER Unterer Hardtweg 37, D-57462 Olpe,
PCT International Classification Number B23D 35/00
PCT International Application Number PCT/EP99/05115
PCT International Filing date 1999-07-17
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 19833324.3 1998-07-24 Germany