FI59040C - INSTAELLNINGSINSTRUMENT FOER RULLEDARE OCH VALSPAR - Google Patents

Description

RSF ^ l [B] (11) * ANNOUNCEMENT CQft i η

Jgtf A L J '' UTLÄGGNI NGSSKRIFT ^? ϋ 4 U

C Patent granted 10 06 1931 • (45) Patent meddelat ^ '(51) Kv.ik.3 / int.ci.3 B 21 B 39/16 FINLAND I - FI N LAN D (11) PweMtIhak.mu. -P «t * nt« i ^ knln | 351/73 (21) H «Jt * ml * pIhrI - Antökrtlnftdlf 06.02.73 '' (13) AlkupUvft— GlW | h * c * d» f 06.02.73 (41) Tullut JulklMkil - Blivlt no no 7o

Patent · j «reki.terJh.mtu. NihtMWp ™ ,. HEARING NEW ρν „. -

Patent · ech regirterrtyrelwn 'An * 5kan uthfd och uti. $ Krift * n pubikend 27.02.8l (32) (33) (31) Pyydetty «tuolkeui — B« | Ird prlorlttt 07.02.72

Sweden-Sverige (SE) 1380/72 (71) Morgardshammar Aktiebolag, Smedjebacken, Sweden-Sverige (SE) (72) Nils Erik Ragnar Bock, Smedjebacken, Sweden-Sverige (SE) (7 * 0 Berggren Oy Ab (5 * 0 The present invention relates to a device for checking the setting of the rollers between the rollers and the guide rollers fitted to the roll guide of the rolled material guide belonging to the Vals plant, the device comprising a separate light source for the opaque plate included in the unit of measurement, the space between the rollers and between the rollers transmitted by the light beam.

The function of the pair of rollers is to shape the rolling material3 into the shape of a wire or profiles, and the function of the roller guide is to guide the rolling material into the rolling groove and to keep the rolling material therein so that no wreckage product is generated.

When checking the setting of the guide rollers in the roller guide, mounted on two separate roller holders, care shall be taken to ensure that the rollers have the correct distance between them, corresponding to the corresponding dimension of the material to be guided and rolled in the roller groove. ' In addition, the requirements for the alignment of the rollers in the height direction are high, since the center line of the rollers must be in the same horizontal plane as the center line of the roller groove. The inspection of the position of the guide rollers 2 59040 must therefore be carried out both vertically and horizontally in order to reduce the generation of scrap product.

The problem with the setting of the rollers of a pair of rollers is similar. The rollers must be positioned vertically and horizontally so that the cross-section of the roll groove is approximately consistent with the intended cross-section of the profile (wire) to be rolled.

Today, there is a setting checker on the market consisting of a separate light source placed behind the rollers and rollers, an optical device with an optical tube and a mirror for generating an image on a dimmed plate with a scale, and a fixed housing surrounding the dimmed plate.

This means that the measurement with movable rulers can only be performed in one direction. If the actual groove opening has to be measured in a direction other than horizontal, the installation of the device must be changed and a new installation carried out. In certain rolling mills, this cannot be done at all due to limited space.

The present invention is characterized in that the measuring unit is rotatable about the axis of the light beam already directed to the opaque plate and in question. with respect to the light beam, which means that measurements can be made in all directions with one and the same installation.

The invention will now be described, by way of example, with reference to the accompanying drawing, in which Figure 1 shows a section of a twin-roll plant with roll guides and setting devices fitted thereto, Figure 2 shows a longitudinal section of a reversible measuring unit, and Figure 3 shows a measuring unit from above.

In Fig. 1, the rollers 1 perform the rolling of the rolling material into the shape of a profile or wire. The rolling material arrives from the right side in Fig. 1 and is guided into the roll groove by a roller guide 2 provided with guide rollers (not shown in the drawing). In order to minimize the generation of scrap during rolling, it is important that the guide rollers and rollers are centered relative to each other and that they are positioned correctly horizontally and vertically. To this end, before the start of rolling, a device 3 is arranged on the roller guide 2, which in turn is fastened to the rail 4 in a manner known per se, for checking said setting. If the setting is not accurate, it must be corrected in a manner well known to all professionals, but if the setting is correct, the device is removed and rolling can begin.

5 59040

The device requires a light source 5 located on one side of the rollers and guide rollers. The light source provides a beam of light which passes between the rollers 1 and the guide rollers entering the device 3. The device has a mirror 6 arranged so that the light beam is reflected upwards towards the measuring unit 10, imaging the appearance of the space between the guide rollers. When the dimensions of the incoming rolling material are known, it is checked that the positions of the guide rollers correspond to these dimensions. This is done by measuring with the aid of the adjustment knob 17 by turning the movable rulers 15. By moving the Rulers to the boundary lines of the guide roller image the distance can be measured vertically, and by turning the measuring unit a similar measurement can be performed in any desired direction. The inspection and measurement of the roll groove image takes place in the same way.

The scale by which the measurement takes place is formed by a crosshair 12, the point of intersection of which coincides with the central axis of the light beam. When measuring, two parallel-moving rulers 15 are moved by turning the adjustment knob 17, which is also provided with a scale. The Hirn honeycomb is further provided with a hair cross 13 without a scale, which is turned 45 ° with respect to the cross 12.