DE2305038A1 - DEVICE FOLLOWING A CONTINUOUS CASTING PLANT FOR RELEASING A PURE-ON CONNECTION - Google Patents

Description

Düsseldorf, January 26, 1973

PAT / 179 / The

- 2465 -

A device downstream of a continuous caster for Loosening a casting connection

The invention relates to a device arranged downstream of a continuous caster for releasing a casting connection from an approach head. In a known continuous caster for billets is a Ängießpilz by a rotary connection with the Start-up line connected. A device for unlocking the rotary joint is arranged after the driver, that consists of a rotatable receptacle with a shaped opening as a passage for a head shaped after the opening with a stepped head Has stem of the mushroom. This type of casting connection is complex, with the specially made Spruce mushrooms are lost after each pour. Equally complex is the one that is guided and clamped to the strand provided with a pressure-actuated pivoting device Release device. The connection and the release device are not sufficiently reliable in operation under the rough casting conditions. Finally, the connection is not useful for thin strands.

Commercially available Known screws whose thread is screwed into the head of the starting strand and whose head is cast around by the cast strand will. This type of connection can also be used for very thin strand cross-sections. It is common to use the Skim off the casting strand following the driving and straightening device and the sprue screw connected to the crop end drawn by hand from the thread of the approach head

409835/0400

screws. Unscrewing is cumbersome and exhausting, because the thread is contaminated by scale and dust ' and the workers are exposed to radiant heat are.

The aim of the invention is a device for the automatic, safe unscrewing of the sprue screw from the thread of the approach head. According to the invention, this is achieved in that a starting strand receptacle is assigned to a rotary head with a form-fitting receiving opening for a crop end enclosing a pouring screw. In this vveise the casting screw can be without manual labor _v quickly unscrewed. The risk of accidents associated with manual labor is eliminated. '

In a further embodiment of the invention, the rotary head is designed as a claw open on one side, in the side opening of which the crop end can be brought in and out. The approach head arrives by moving the approach line sideways into the claw opening and, after unscrewing the sprue screw, falls onto a scrap chute or into one Scrap bins.

In order to prevent the sprue screw from kinking when the end of the crop is tilted prematurely, the claw can be fitted with a Failsafe must be provided. In the side flanks of the claw opening, a pointed edge position can be used as a fail-safe of the crop end, corresponding recesses may be provided, the crop end having an opposite to the unscrewing direction

409835/0400

Λ-

Turig-looking stop that moves the end of the crop limited in the vertical failure position is assigned.

Tilting the end of the crop before turning it out completely the AngieÄ screw can also be surrounded by a claw de and on the same axis freely pivoting laterally open sleeve can be prevented. The 'pivoting movement of one Approach provided sleeve is thereby assigned stops between the claw opening in the direction of failure locking and one this opening position limited. Finally, an advantage is seen in that the Starting line recording is provided with an anti-twist device for the starting line. This prevents the Start-up line rotates with stiff threads. In The drawing shows two exemplary embodiments of the invention. Show it

Fig. 1 schematically the arrangement of a release device on the front side of a Kaitstrangaufnähme,

2 schematically shows another arrangement with a cold-strand holder that can be displaced parallel to the roller table,

3 shows a release device seen in the direction of the strand, FIG. 4 shows a plan view of the release device according to FIG. 3,

Figure 5a

up to 5c working positions of a rotary claw with pivoting cover and

409835 / OAOO

-H-

6 shows a longitudinal section through the with the device; Sprue connection to be loosened.

In the area of an outfeed roller table 1 of a continuous caster for billets, a separating device 2 for dividing the cast strand 3 arranged. In the in Pig. I illustrated Arrangement is the run-out roller table 1, a cooling bed 4 downstream j on which the strand sections conveyed away transversely will. Behind the cooling bed 4 is a receptacle 5 for one Start-up line β arranged.

As shown in Fig. 6, is as a connection of the cast strand 3 a casting screw 7 is provided with the starting line β, screwed into the head of the starting line β and whose head 8 is cast around by the cast strand. To solve the connection between the cast strand 3 and Starting strand 6, the cast strand is skimmed off at the cutting device immediately behind the uncast screw head 8. Between the cooling bed 4 and start-up strand receptacle 5 is a rotating device 9 is arranged. Through this, the starting line 6 is conveyed into the receptacle 5, with the crop end of the cast strand remains in the area of the rotating device 9. Then the crop end is turned through the turning device until the sprue screw 7 is unscrewed from the head of the starting line β and the connection is released The crop end can then be ejected from the rotating device and conveyed away. The starting line 6 is with a provided new sprue screw 7 and moved into the continuous caster for the new casting.

409835/0400

-fr

_ Of _

In the arrangement according to FIG. 2, there is a start-up line 10 before a. Cooling bed 11 arranged and transversely into the area a turning device arranged laterally in front of the outfeed roller table 1 12 movable.

In Fig. 3 and '! a rotating device is designed structurally. It consists of one; Housing 13 , in which a chain wheel crane 1 '! provided rotary head 15 is mounted on rollers la 1st. A worm gear 17, which is connected to a drive shaft 18, is flanged to the housing 13. On a ^{T r} elle of the worm gear 17 is a sprocket 1? attached, which drives the sprocket I ^ via a chain 20.

The rotary head 13 is designed as a sleeve open on one side, ve lohe stirnseiti ;; nit the .: Stick profile advised Etching 21 is provided. Recesses 22 corresponding to a pointed edge of the billet are incorporated into the side flanks of the inserts 21, into which the end of the crop is inserted when the screw 7 is unscrewed and is thus secured against tilting. The inserts 21 are exchanged when the format is changed. So that the axis of rotation coincides with the screw axis for every billet format, the threaded hole in the approach head is provided at a constant distance from the support surface. In order to ensure that the end of the scoop falls out after unscrewing, a stop lever 2H is mounted on a bracket 23, which deflects the stick contour in the unscrewing direction against the pressure of a spring 25, after unscrewing the rotating head 15 is turned back. In this case, one side of the crop end strikes against the end face of the lever 24 and is held in place until it passes through the vertically downwardly pointing openings of the inserts 21 into a

409835/0400

Sehrottnulöe, not shown, may fall. The Ahfa.hr-Gtraxi ^ take up IQ is advising your coverage; 10; .. ·. verse'-e which secures the start-up line 6 from being damaged.

In the pig. 5a to 5c shows a rotary head 26 with a cover 29 which surrounds it and which can be pivoted between two stops 27 and 2c, "in the scoop end 30 vi'ird. From the side into the I-claw opening 31 of the rotary head 25 and pushed against your Ulir-clockwise rotated (Fig. 5a) where viird die'Abdeckung;. ^ 29 Rait enomruen, ο is a shoulder 32 c o ^{e s} the stroke and is closed 2G suggests the failure range (Fi ^ ^.? · 5b) -lach the unscrewing of the ^ ngießschraube 7 T-- ird the rotary head is rotated in the opposite direction 2o ₃ wherein the extension 32 of the cover viird taken it 29 to the stop 27 ir and the outgoing direction: the tuft end 30 is released ( Fig. 5c).

409835/0400

Claims (1)

Düsseldorf, January 26, 1973 PAT / 179 / The - 2465 - - ♦ · Claims 1. A continuous caster downstream device for releasing a casting connection from a starting head, characterized in that a starting strand receptacle (5 or 10) of a rotating device (9 , 12) with a form-fitting receiving opening for a pouring screw (7, S) enclosing the crop end (3 ) assigned. 2. Apparatus according to claim 1, dadur.ch gekenn ζ eich η et that a _{rotating head (15 3} 26) of the rotating device is designed as a Jilaue, in the side opening of which the crop end (3) can be inserted and attached. 3. Apparatus according to claim 2, characterized g ekenrize. Ichnet that the claw is provided with a fail-safe device (22j 29) for the crop end (3) is. Device according to claim 3j, characterized in that that in the side flanks of the claw opening a pointed edge position of the crop end (3) corresponding recesses (22) are provided, the crop end being opposite to the unscrewing direction Acting stop (24), which limits the movement of the crop end in the vertical drop position, assigned. 409835 / OAOO 5. Device according to claims 2 and 3 ₃ thereby marked ch η et, öaß old; Ausfallsicherun>'· a pawl surrounding laterally open sleeve (29) is free to pivot on the same axis, wherein the 3chwenkl.eweffun the ^ provided with a projection (32) sleeve (29) by an associated therewith stops (27 ₅ 20) between die Xlauencffnun ^; in the failing direction closing and one opening position is limited. 6. Device according to one of claims 1 to 5, da · - by ^ e 1-: e η η "eic h η et, da." the Anfahrstran ^ aufnalj.e (10) advice of a rotation lock (25) for the Anfahrstran ^ aufnalj.e; (6) is provided. A09835 / 0400