DE889734C - Feeding and dispensing device in cold rolling mills for strips with pull-winding drums - Google Patents

Description

Feeding and discharging device in cold rolling mills for strips with draw-winding drums For the cold rolling of strips, they come from the roughing mill in coils, for example via one Gravity roller table and are first brought onto a pay-off reel. from from here the beginning of the tape is then in a known manner by a driving device, .which can be connected to a straightening machine at the same time, as well as via tables between the rollers and further onto the winding drum; behind the roller.

After the first pass of the tape, the backstitch takes place, whereby the belt at the same time, with the roller table folded up, onto a winding drum underneath it is applied in front of the roller. The second stitch can now be done with a reel pull and behind .the roller.

In some cases (especially with thin strips made of light metal, however, only one re-rolling or trimming pass is to be carried out. Here's the rolling with train required both in front of and behind the roller. This was previously at to the. above-described process on the same rolling mill on which the pre-rolling passes not possible. With the invention it is now possible. made.

These cold rolling mills for strip-shaped rolled material are of two types commonly used for winding drums, the fall or collapsible drums and the rigid drums. In the case of the fall or collapsible drums, after the end of the Walzvorganges and after the tape has been wound into a bundle, the diameter .The drum slightly reduced by mechanical means, so that the federal government means can easily be pushed off the drum using a suitable pushing device can.

With the rigid drums, the collar sits on with considerable tension the drum. It must be handled by the same after the rolling process is completed, to get to further processing.

This operation is usually carried out in such a way that the winding drum with the collar is removed from the rolling mill by crane or other .mechanische aids and brought to a wrapping system, while an empty winding drum is used on the rolling mill so that it can continue to work. It follows that the application of the folding or falling drum is simpler than that of the rigid drums. since the falling drum can be left in its position on the rolling mill, while the rigid drum. must be changed. In many cases, however, especially in the case of Walzurig from thin light metal tape that has to be wound onto the drum with strong tension, i.e. under considerable tension, rigid drums are used When the tensions in the collar are released, the turns of the tape slide against each other, which can damage the surface of the tape. changing the drums and changing the wrapping of the tape must be accepted in such cases. With the invention, however, it is made possible in a very simple, convenient and time-saving manner without the aid of hoists. ,. ,. It has already been suggested that the time- consuming crane work when changing the winding Avoid drumming by applying 'vori mechanical drum changers'. The same, = be stand from a double-armed swing arm; :the. at. each end with a bearing point for one winding drum is provided. By panning the Swing around i8o ° comes with a collar wound drum from one of the rolling mills turned position in, a, turned away from him, from which they A den_ Büüd to an ari @ dere A'ufwickelvor =. right ;! ebeWei-he; solc`he; with light = # Zub with Klapp = - desolate. Falltrötntne1; give up käniL "The: Richtüjng this drum changer is after the Invent &, 'for the'above''bescltriebenen,"Z,# eck iti strong förtsch @ i @ tflicher'Weise'äwsgerüttzt '' `` ',;@' 'L? E A'bitsvorga: ng for a 1d @ hteh'Dressier' or: the like. Sti @ chi "st'na @ h'derErftndünä £ blgeiderber dorge '@ al @ zte ü @ rd in the "oven treated; finished zü; be`- @ .rtieiten.deBün @ d "elongated ätt @ f vine.in'Scha@ikrxff- rollgang_an a place in front of the rolling mill in front of @ eiixem Decoiler. and. will -hach-, # put them in's äü @ f 'a ready "hende,' ir @ eüierri` 'f`ro: ftün @ elv @ ieclisler built-in winding drum. The changer is then swiveled through 180 °. Now the coil wound under tension stands opposite a drum chair which can be displaced perpendicularly to the rolling direction on a slideway and which is provided with a carriage for moving the drum with the coil wound up in the winding position in front of the rollers. After taking over the federal government, this chair is now pulled on its slide in front of the roll stand and is then ready for unwinding for the purpose of finishing rolling with retraction. On the other side of the rolling mill there is an identical but stationary chair for receiving a second winding drum. Between, these two drums now takes place: the. Finishing stitch with forwards and backwards. In order to insert the leading edge of the tape into the clamping device of the second winding drum, it is necessary that the beginning of the tape (with thicker tapes of about 5 mm thickness starting with a considerable amount of force) is introduced. On the other hand, it is necessary that the coil from the drum located behind the rolling mill is rewound on a reel for light tension. will; .so that also on this page to save @vori crane work u. d: gl. a drum changer is to be arranged. So far, however, the arrangement of this drum changer has been associated with the disadvantage that the operators are in a very difficult position for the manipulations that require considerable effort in the case of wider, thicker tapes to insert the changer into the glueing device: on both sides of the drum changer available '. This inconvenience is also eliminated by the invention by placing the bearing frame for the Wicke1 drum on the drum facing away from the roll stand Szite is extended and, this. Extension of a on the one hand as a career for the drum to be replaced one set up and on the other hand a service platform for. the introduction, Ar, beginnings of the tape into the drum forms. In this way, the operation of a sol- cold rolling mill in techiii, scli and economic 'borrowed in a much more perfected way possible become: ' The invention consists in the fact that in cold rolling mills of the type described the draw winding drums on the inlet and outlet side in storage are supported by steel bearings, which only after the scaffolding side to form a train wi, the warehouse., which after the other direction in catwalks for the cylindrical Trdm @ rriePls, g @@ kä @ 1 r'aüsräü ft; -denen ye bim Tiomme @ l- changer. is opposite, `where'2 # vi @ sclien deh Laüf- `steken. ' eih control station for inserting the Band beginnings 'ih the TToinnn'el' ängeordäet- is, and 'that''.the' on der'- inlet side @ ttnterli-al @ b of the 'äuf- klap, p'baren, 'Aufg @ lbeti, sches ehgeardnete- drum- running perpendicular to the rolling direction deii 'ä @ hienen', for the purpose of overrnahrhe @, wfon po'm storage or Vorwalzwerk'äiikärrnrrien-deri Biind, en'v'ör ein Gußeflialb the W'alzensträ'ße 'lying -Tröminel- wvech-sler verschöl @ eri weldentkänn 'A'us.f'ü? Nirigsliebeispiel the @ rfintiuy "z'st iü' ä @ r Fig. I is an overall ground plan of a system according to the invention, Fig. 2 is an outward view, partially in section along line AA in Fig. I, Fig. 3 is an elevation section along line BB in Fig. I.

In the example shown, a four-roll stand i eats on the Entry side with the feeder arrangements, on the exit side with the delivery arrangements Mistake.

The S heavyweight roller table 2 brings the lap bundles forward from the store the pay-off reel 3. If the collar is to be rolled down to a lower thickness, so it is used in a known manner in the pay-off reel located in front of the scaffolding. From here it reaches the tables using a transport and straightening system .4 5 and 6 between the rollers and then taken up by a pulling drum 7 on the other side of the same in an open bearing bracket on the side facing away from the rolling mill 8 is stored. The storage is such that the bearing housing 9 of the drum: mellagerzapfen to have a fixed installation after the rolling mill side: after the opposite one However, the page can roll freely as soon as a mechanically operated one in the drawing holding device not shown is released. Following the bearing block 8 is a drum changer To with a double-armed rocker on bearing blocks i i and with Drive i2 arranged. When a coil is unwound after the rolling process has ended must, the finished wound drum 7 by means of suitable devices on their Storage 9 on the track 13 of the chair 8 and further in: the free storage fork 14 the, swing arm ok. Rolled. The swing arm is located in the other fork 1S an empty drum 16. Now the rocker is swiveled through ißo ° so that the empty drum 1.6 opposite the rolling mill and from the rocker io in .the winding position can be brought in the chair 8, while the drum 7 carrying the collar of the trimming shears 17 and the take-up reel, 18 designed as a dropping drum. the fork-shaped bearings 1q., 1S of the swing arm io are equipped with automatic or mechanically operated locks, depending on the respective requirements open or closed in the various positions or when turning the changer will.

Between the tracks 13 of the bearing block 8 is a control station ig arranged, from which the beginnings of the tape can be conveniently transferred to the drum clamping device can be introduced. For those cases where it has once run through the rollers If the tape is to be further scaled down, it is shown below the fold-up, shown in Fig. ? -dotted table 6 an identical drum chair 8 installed, symmetrically also on the other side, but not fixed, but on rails 2, o extendable perpendicular to the rolling direction and with an inserted empty pulling drum to take up the strip coming back in the second pass through the rolling mill. The tape is then continued back and forth between the two drums 7 and 16 rolled.

For those cases where a bundle coming from the oven only has a finished or The skin pass pass is to be given forwards and backwards, there is a second in front of the rolling mill i Overhaul reel 21 is provided and in alignment with it a drum changer io, i i with Winding drive 25, which takes up the coil under tension on a drum 2,: 2 and then in the from the roughing mill in the flight .mit it driven bearing bracket 8 there. To the A pulling device 23 with drive is used to move this bearing block back and forth 2q ..

After the winding bundle has moved in front of the rolling mill, the rest of the process goes Roll in front of you, as already described.

Claims (2)

PATENT CLAIMS: i. Feeding and dispensing device in cold rolling mills for strips with pull-winding drums using swingable drum changers, characterized in that the pull-winding drums are mounted on the inlet and outlet side in bearing chairs (8) which only provide a pulling abutment after the stand side other direction for the supply and removal of drums in catwalks (13) for the cylindrical drum bearing body (9) expires, with these catwalks each facing a drum changer (io), and the space between the catwalks (13) of the bearing blocks (9) as Control station (i9) is designed for inserting the beginnings of the tape into the drum. 2. Feed device according to claim i, characterized in that the drum bearing seat (8) on the feed side on vertical to the rolling direction up to a drum changer located outside the rolling train (io) loading rails (2o) is movably mounted.