US3364722A

US3364722A - Apparatus for rotating and shifting rolled workpieces, especially sections

Info

Publication number: US3364722A
Application number: US508776A
Authority: US
Inventors: Modder Otto; Siegen Kreis; Karl G Illert; Oldendorf Manfred
Original assignee: Siegener Maschinenbau GmbH
Current assignee: Siegener Maschinenbau GmbH
Priority date: 1964-11-20
Filing date: 1965-11-19
Publication date: 1968-01-23
Anticipated expiration: 1985-01-23
Also published as: GB1130862A; DE1452016A1; DE1452016B2; DE1452016C3; FR1453713A

Description

Jan. 23, 1968 o. MODDER ETAL 3,364,722

APPARATUS FOR ROTATING AND SHIFTING ROLLED WORKPIECES, ESPECIALLY SECTIONS Filed Nov. 19, 1965 4 Sheets-Sheet 1 INVENTORS OTTO MODDER, KARL G. ILLERT & MANFRED OLDENDOR'F TH IR ATTORNEY Jan. 23, 1968 o. MODDER ETAL 3,364,722

APPARATUS FOR ROTATING AND SHIFTING ROLLED WORKPIECES, ESPECIALLY SECTIONS Filed Nov. 19, 1965 4 Sheets-Sheet 2 FIG) INVENTORS OTTO MODDER, KARL e4 ILLERT a MANFRED OLDENDORF /L Q-7Z THEIR ATTORNEY Jan. 23, 1968 o. MODDER ETAL 3,364,722

APPARATUS FOR ROTATING AND SHIFTING ROLLED WORKPIECES, ESPECIALLY SECTIONS Filed Nov. 19, 1965 4 Sheets-Sheet 3 FIGS FIGS

FIGS

INVENTORS OTTO MODDER, KARL G. ILLERT & MANFRED OLDENDORF THEIR ATTORNEY Jan. 23, 1968 Filed Nov. 19, 1965 O. MODDER ET AL APPARATUS FOR ROTATING AND SHIFTING ROLLED WORKPIECES, ESPECIALLY SECTIONS 4 Sheets-Sheet 4.

FIG. 7

INVENTORS OTTO MODQDER KARL G. ILLER'I' a. MANFRED OLDENDORF 71. (17241 HEIR ATTQRNEY United States Patent 3,364,722 AIPARATUS FOR ROTATING AND SHIFT- ING ROLLED WORKPIECES, ESPECIALLY SECTIONS Otto Modeler, Dahlbruch, Kreis Siegen, Karl G. Illert,

Neuss, and Manfred Oldendorf, Dortmund, Germany, assignors to Siegener Maschinenbau G.m.b.I-I.,

a corporation of Germany Filed Nov. 19, 1965, Ser. No. 508,776 Claims priority, application Germany, Nov. 20, 1964, S 94,270 6 Claims. (Cl. 72389) ABSTRACT OF THE DISCLOSURE The invention concerns an apparatus for rotating and shifting rolled bars, especially rolled beam sections, which is provided between a conveying roller table and a crosstransfer laterally arranged thereto such as a hot bed, and it includes a larger number of bar rotating levers hinged to a horizontal shaft, which levers seize the rolled bars in a first position and deposit them in a second position on the hot bed.

Presently it is known to employ transfer devices in conjunction with hot 'beds made up of raked members that rotate through a circular path of travel to lift the rolled bars individually off of the approach roller table and move them perpendicular to the latter in the direction of the hot bed. in another form of the prior art there was associated with the rake, laterally at its end away from the roller table, an erecting or setting-up device, which would receive a bar lying occasionally in the last rake pocket into an angular-variable pocket of the erecting lever and deposits it in an upright position upon the hot bed. Such transfer devices were of a relatively heavy and lavish construction and therefore are cumbersome and subject to objectionable wear during operation.

In an attempt to simplify and increase the safety in operation of such setting-up and shifting devices one previous design employed a carriage or slide constructed to move horizontally back and forth through the agency of a hydraulically actuated piston, and on which carriage there was rigidly mounted one or several hydraulically driven pistons having vertical direction of motion. Of these latter pistons at least one serves to raise and lower the rake lifting the rolled bars off the conveying roller table, while other pistons serve to raise and lower or swing the erecting levers or pockets that were associated with the end of the rake away from the roller table.

This known setting-up and shifting device was also relatively lavish and therefore costly in its construction; furthermore, its housing requires considerable space.

The present invention has for its object the still further simplifying of the setting-up and shifting apparatus for rolled bars, especially rolled sections, and in such a manner that aside from being easy and manageable in operation, it requires only a minimum of installation space. According to the invention this object is realized essentially in the fact that the erecting levers are mounted to be horizontally shiftable in stationary guides which extend beyond the width of the roller table and for a distance approximating that of the hot bed. This arrangement according to the invention not only assures smooth operation of the setting-up and shifting apparatus, but also completely eliminating the conveying rakes or the like, which in the known transfer devices are bridging the space between the conveying roller table and the erecting levers, because the erecting levers, aside from their function of setting up the rolled bars, at the same time assume also the shifting function for the rolled bars.

The setting-up and shifting apparatus of the present invention can "be worked with relatively little driving power and therefore with light driving units, since in the invention there is provided a coupling rod connected with a rocking lever of the shifting drive, the rod also being connected to the erecting levers at their axes of rotation, while to an arm of the rocking lever extending beyond the swivel axis a pushor tie-rod is linked, which is engaged by one arm of an angle lever resting on the pivot shaft between the rocking iever and the coupling rod, to the other arm of the angle lever a pivot drive which moves together with the rocking lever is connected. All the driving means can thus be mounted fixedly and need not be seated on a relatively heavy and thereby cumbersome movable carriage or slide. In the present invention, therefore, all the drive members are stationary mounting and only the relatively lightly built setting-up levers or pockets are movable.

According to the invention there is advantage in most cases if all the rocking levers are adjustable through a common shaft by the shifting drive, instead of a special swing drive being associated with each erecting lever.

In cases where a rather rapid transfer of the rolled bars from the conveyin roller table to the hot bed is important, it is also possible acording to the invention to make provision for several groups of setting-up levers or pockets and to move the rocking levers of each one of these groups effecting the shifting drive by means of a special shaft and a special shifting drive. Namely, it is possible thereby to operate the setting-up and shifting apparatus in such a manner that the one group of setting-up levers or pockets lifts a bar oil the roller table, while at the same time a second group of settingup levers or pockets delivers a rolled bar to the hot bed and a third group of setting-up levers or pockets runs back underneath the conveying plane toward the conveying roller table in order to get into the receiving position for the next arriving rolled bar. A particularly advantageous operation of such a setting-up and shifting apparatus is possible according to the invention, whenever setting-up levers or pockets of various groups are in turn arranged next to one another.

It is another feature of the invention to allow the shifting drive or drives and the swinging drives to take the form of piston-cylinder units.

Further developments and characteristics of the setting-up and shifting apparatus according to the invention will be dealt with hereinafter with reference to the following drawings of which:

FIGURE 1 is a cross-section of the setting-up and shifting mechanisms in association with the hot bed of a rolling mill,

FIGURE 2 is a top view of the arrangement according to FIGURE 1 on a reduced scale,

FIGURES 36 illustrate various operating positions of a setting-up and shifting apparatus for rolled bars according to the invention,

FIGURE 7 is a simplified representation of a top view of the arrangement according to FIGURE 1 on a reduced scale and illustrating a straightening operation for crooked bars, and

FIGURE 8 is a cross-section along the plane of line VIIIV'III of FIGURE 7.

With reference to FIGURES 1 and 2, there is shown an approach roller table 1 on which individual rolled beams 2 are brought lying down, i.e. supported by the edges of their flanges. They run up against a bumper 3, thereby preventing their further advance. Serving for the delivery of the individual bars to a hot bed 4 arranged laterally to the roller table 1 are setting-up levers or pockets 5, each of which with their pivot 6 traverse by virtue of rollers 6a received on stationary guides 7, and which pivots extend perpendicular to the roller table axis beyond the roller table the full distance of the adjacent side of the hot bed.

The setting-up levers or pockets 5, in assuming their beam transporting position, are moved below the conveying plane of the approach roller table 1 crosswise between the latters rollers and underneath the rolled beam 2 to be rotated and transported. Thereafter the setting-up levers or pockets are lifted above the conveying plane of the approach roller table and shifted out of the range of the approach roller table 1 into the range of the cross-transfer forming the hot bed 4, while at the same time they are so erected, that the rolled beam 2 taken over from the approach roller table 1 in a lyingdown position is deposited in an upright position on the hot bed. Of course, it is also possible without anything further to deposit the rolled beam 2 in a lying-down position upon the hot bed 4.

The setting-up levers or pockets 5 are actuated through a shifting drive 8 which takes the form of a piston-cylinder unit, engaging a fixedly mounted rocking lever 9, the latter being connected through a coupling rod 10 to the vpivot 6 of the setting-up levers or pockets 5.

Serving as a swing drive 11 to raise and lower the setting-up levers or pockets is a device also preferably in the form of a piston-cylinder unit. This swing drive 11 engages the one arm 12a of a toggle lever 12 movably mounted on the pivot 13 between the rocking lever 9 and the coupling rod 16 and its other arm 12b is hinged to the one end of a pushor tie-rod 14. The other end of the pushand tie-rod 14 engages an arm extending beyond the pivot 6 of the setting-up levers or pockets 5. The swing mechanism or drive 11 is fixed to pivot round an axis parallel to the swivel bearing of the rocking lever 9, so that it follows each swinging motion of the rocking lever 9 effected by the shifting drive 8. This makes it possible at any point of time and in any shifting position of the setting-up levers or pockets 5 to raise or lower the latter.

Directly through the setting-up levers or pockets 5, the individual rolled beams 2 are deposited on the stationary grates 4a of the hot bed 4, whereby stepwise conveying throughout the length of the hot bed 4 is effected through lifting beams 4b that can be raised and lowered by means of a stationary lifting drive 15 and lifting gears 16 and at the same time they are shiftable in their longitudinal direction through a pacemaker drive 17.

From the rear end of the hot bed 4, the individual rolled beams 2 can be transferred again to a runout table 19. For that purpose there is arranged between the rear end of the hot bed and the runout table 19 a setting-up and shifting device similar to the one between the approach roller table and the front end of the hot bed 4. The operating method of this setting-up and shifting device is however inverse to that of the setting-up and shifting device between the approach roller table 1 and the hot bed 4, i.e. the individual rolled beams 2 are removed from the hot bed 4 in their upright position and deposited in the lying-down position on the runout table 19.

Normally it will sufiice to provide (between the roller table and the hot bed) only one group of setting-up levers or pockets :5. With an especially rapid succession of rolled beams, however, it may be desirable to provide several groups of setting-up levers or pockets 5 and couple them with different shifting drives 8. For that purpose it is merely necessary to mount the rocking levers 9 associated with the various groups of setting-up levers or pockets 5 on ditferent shafts which are also actuated by different shifting drives or mechanisms 8. If the different shifting mechanisms 3 are then actuated in phaselike fashion the rolled beams 2 between the roller table and the hot bed can be turned over in quick successionor inversely, if different groups of setting-up levers or pockets 5 are provided, it is advisable to arrange the setting-up levers or pockets 5 of different groups to turn successively. The various drive shafts associated with the individual rocking lever groups are purposely arranged mounted one after another.

As is revealed in FIGURE 3, the setting-up and shifting apparatus according to the invention can also be used for the rolled beams 2 delivered lying-down on the ap proach roller table 1 to erect them above the roller table and then redeposit them thereon, so that on the roller table they can be conveyed to subsequently arranged hot beds, for example, cross-roller hot beds.

Furthermore, according to FIGURE 4 it is also possible to use the settingup and shifting apparatus according to the invention simply for the lateral displacement of lying-down sections 2a between roller table and hot bed or inversely. The working method of the setting-up and shifting apparatus for the removal of sections in any position inclined in relation to the entry plane from the roller table upon the hot bed or from the hot bed upon the roller table, is revealed in FIGURE 5, whereas FIGURE 6 indicates the position in which the setting-up levers or pockets 5 can be moved underneath the conveying plane from roller table to hot bed, without colliding with rolled beams 2 lying on top thereof or between the latter being moved by another group of setting-up levers or pockets 5.

The setting-up and shifting apparatus according to the invention, by reason of its characteristic operating method, is suitable for use in transferring of the rolled beams to the hot bed, with no distance behind the bed and apparatus or with a predeterminable distance.

A special advantage of the setting-up and shifting apparatus according to the invention resides furthermore in the fact that with the aid thereof, also crooked beams 21) can be prestraightened prior to entering a straightening machine. For that purpose, namely, it is merely necessary for the shaft carrying the rocking levers 9 to be provided With several coupling points, through which it is possible to disconnect predetermined rocking levers 9 from the relative setting-up levers or pockets 5 by way of the drive 8. By securing the setting-up levers or pockets 5 uncoupled by the drive against motion inside the guides 7, it will be possible to use these fixed setting-up levers or pockets 5 as abutments for the crooked beam 2 and cause the settingup levers or pockets 5 still coupled with the drive 8 to act upon said beam from the opposite side through a corresponding shifting movement. Therefore, prestraightening of crooked rolled beams is accomplished in a very simple manner. It is advisable in particular to provide the shaft carrying the rocking levers 9 with a plurality of coupling points, in order to be able to straighten rolled beams 2 of different length.

In connection therewith it is also a feature of the present invention to associate with each individual rocking lever 9 a special drive 8, these drives 8 being synchronized during normal operation, while during the straightening operation any selective number of drives 8 are to be operated or blocked, so that in this way the straightening op eration of the setting-up and shifting apparatus can occur in accordance with the prevailing requirements. The development and operating method of the setting-up and shifting apparatus according to the invention during the straightening operation are revealed in FIGURES 7 and 8 of the drawing, in which for the individual elements the same reference numerals as those in FIGURES l to 6 are being used.

The characteristic function of the setting-up and shifting apparatus according to the invention thus makes it possible during the straightening operation to bring the setting-up levers or pockets 5 in the occasionally required manner into action upon the crooked rolled beam, whereby the straightening operation is being given the additional special advantage in that the settingup levers or pockets 5, lying beneath the conveying plane of the rolled bars, can be moved into any desired position and then erected. Also during the straightening operation of the apparatus, there will thus be no collision difficulties whatever of the setting-up levers or pockets 5 with the rolled stock.

The manifold applicability of the setting-up and shifting apparatus according to the invention for rolled material, especially section bars, beams, angles, sheet piling bars or the like, is therefore obvious.

The invention can be modified in various points without thereby going beyond its scope. Thus it is possible without anything further, for example, to combine the setting-up and shifting apparatus according to the invention, instead of with the lifting beam hot bed, with a different type of cross-transfer, for example, a cross-transfer operating with drag dogs or cross rollers. It is also possible to use drives other than piston-cylinder units, such as cam disk or crankshaft drives.

Although it is advisable for the straightening operation of crooked rolled beams to use the setting-up and shifting device provided at the rear end of the hot bed, it is possible without anything further to perform the straightening operation also with the setting-up and shifting device located at the front end of the hot bed.

In accordance with the provisions of the patent statutes, we have explained the principle and operation of our invention and have illustrated and described what we consider to represent the best embodiment thereof. However, we desire to have it understood that within the scope of the appended claims, the invention may be practiced other- Wise than as specifically illustrated and described.

We claim:

1. In combination with a conveyor roller table for advancing rolled workpieces and a cross transfer for receiving the workpieces from said table, a setting-up and shifting apparatus for the workpieces arranged laterally of said conveyor roller table for shifting individually horizontally positioned workpieces and depositing them on said transfor and comprising a plurality of setting-up levers including portions for supporting a workpiece in two positions, said levers being pivotally mounted about a horizontal axis, the improvement comprising:

a roller for each setting-up lever and arranged on the horizontal axis of said levers,

horizontally arranged stationary guides for receiving said rollers in a manner to allow their horizontal movement,

a coupling bar connected to each of said levers at the points of their horizontal axes of rotation,

a shifting drive for advancing said levers over said guides,

a rocking lever connecting said drive to each of said coupling bars,

said setting-up levers each having an arm, one end be ing coaxially arranged on said horizontal axis and the other end extending away from said horizontal axis,

a push and pull rod connected to the extending end of the arms,

a bell crank mounted on each of said rocking levers carrying one end of a coupling bar and one end of a push and pull rod, and

a rocking drive connected to one end of a bell crank for effecting rotation of said setting-up levers.

2. In combination with a conveying roller table and a cross transfer according to claim 1,

said apparatus including a plurality of said rocking levers, each being pivotally carried by a common shaft,

at least two shifting drives for horizontally moving said setting-up levers, and

at least two rocking drives for rotating said setting-up levers.

3. In combination with a conveying roller table and a cross transfer according to claim 2,

wherein shifting and said rocking drives comprise piston cylinder assemblies.

4. In combination with a conveying roller table and a cross transfer according to claim 3,

including two roller tables one being an approach roller table associated with the receiving end of said cross transfer and the other a runout table associated with the discharge end of said cross transfer, wherein said workpiece rotating setting-up levers are arranged on each end of said cross transfer for facilitating the transfer of workpieces from the approach roller table to the cross transfer and from the cross transfer to the runout roller table.

5. In combination with a conveying roller table and a cross transfer according to claim 4, wherein at least certain of said setting-up levers include abutting surfaces,

means for disengaging said certain workpiece rotating setting-up levers from said first drives,

whereby on operation of the members still connected to their first drives crooked workpieces are forced between the workpiece rotating setting-up levers on one side thereof and the abutting surfaces of the other setting-up levers on the other side and straightened.

6. In combination with a conveying roller table and a cross transfer according to claim 1,

said apparatus including separate, succeeding groups of setting up levers, each group having an individual rocking lever, an interconnecting horizontal shaft for each group and shifting and rocking drives.

References Cited UNITED STATES PATENTS Re. 18,152 8/1931 George 72-426 614,326 11/1898 Huber 198-33 942,644 12/1909 Huston 198-105 X 1,152,014 8/1915 Farkell 198-33 1,360,106 11/1920 Forsstrom 98-33 2,658,608 11/1953 Wehmiller 198-219 2,761,507 9/1956 Clarke et al. 72-426 X RICHARD E. AEGERTER, Primary Examiner.

EVON C. BLUNK, Examiner.

M. L. AJEMAN, Assistant Examiner.