US2207893A - Coil transfer means - Google Patents

Description

'July 16. l940 L. w. NASH Er A1. 2,207,893

COIL TRANSFER MEANS Filed July 26, 1958 .3 Sheets-Sheet l EN- -l5 uw Nm. mw n INVENT'R BY *Je ToRNEs.

. July 16, 1940- l.. w. NASH Erm. 2,207,893

con. TRANSFER MEANS Filed July 2s, i958 :s sheets-sheet 2 L. W. NASH ET AL con. TRANSFER MEANS Filed July 26; 1938 July 16', 1940.

5 Sheets-Sheet 3 Aling baths.

Patented July 16, 1940 PATENT OFFICE COIL TRANSFER MEANS Leonard W. Nash, Damascus, and George A. Martin, Salem, Ohio, assignors to E. W. Bliss Company, Brooklyn, N. Y., a corporation of Delaware Application July 26, 1938,4 Serial No. 221,308

8 Claims.

The present invention relates to coil transfer means and more particularly to such means for transferring coils of strip material from a coiler to a conveyor for storage or presentation to pick- The primary object of the invention is to provide such means for efllciently transferring coils of strip material from a coiler to a conveyor in end up relation. A ,further object is to accomplish such transfer without danger of damaging the edges of the coil. A further object is to provide such transfer means which will handle with equal facility coils of different widths and of, different diameters within relatively wide limits. A further `object is to provide such means which include a conveyor disposed at substantially a right angle to the coiler, i. e., one which runs in a direction parallel to the direction oftravel of the strip material from the mill to the coiler.

According to the present invention the foregoingv objects are realized by providing a coil transfer means which comprises a coil receiving cradle or up-ender mounted on a turntable disposed adjacent the coiler, said cradle being further mounted to be tilted through an arc to f transfer the coil from a substantially horizontal position in which it is received, to a vertical or end up positionin which it is deposited upon a conveyor. The cradle is formed with arms to straddle the parallelly disposed carrier elements of the conveyor so that the coil can be deposited on said elements without danger of damaging, the

edges of the coil. The invention further resides in the novel construction and combination of parts, which will be better understood from the detailed description which follows when considered in conjunction with the accompanying drawings, wherein:

Figure 1 is a side elevation of coil transfer means embodying our invention.-

Fig. 2 is a top plan view of the transfer means shown in Fig. 1.

Fig. 3 is a front sectional elevation of the coil transfer means taken substantially along the broken line 3-3 of Fig. 1.

Fig. 4 is a section taken substantially along the plane of the line 4-4 of Fig. 3.

Referring to the drawings, the coil transfer means may be said to consist essentially of the a rotatable shaft I5. The stationary unit also includes a support or rest member I6, the function for which will be presently made apparent.

Mounted on the base I0 is an electric motor I1, the shaft of which is coupled to a driving shaft I8 through a suitable coupling I9. Mounted on and rotatable with the shaft I8 is'a worm 20 which is in mesh with a Worm wheel 2l mounted on a secondary shaft 22. The secondary shaft also has mounted thereon a worm 23 which is in mesh with a worm wheel sector 24 fixedly mounted upon the shaft I5. The worm wheel sector 24 has a periphery slightly greater than a quadrant of a circle, and when rotated by the worm 23 is adapted to rotate the shaft I5 and with itthe turntable through an arc of approximately The turntable, which is carried by the shaft I5 through the agency of the hanger brackets 25 and 26, comprises a housing 21 having an upright standard 28 which carries a lateral bracket 28 upon which is mounted an electric motor 30. The electric motor 30 is coupled to a driving shaft 3| by Ya coupling 32, the shaft 3l having mounted thereon a miter gear 33 in mesh with n ed to rotate the square shaft 38 through an arc of somewhat greater than 90. Rotation of shaft 38 functions to tilt the up-ender, which will now be described.

'I'he up-ender comprises a table 40 which is rigidly mounted on the shaft 38, the said table at one edge thereof which is parallel to the shaft 38 being formed with spaced lugs 4I, 42 and 43,

the lugs 4I and 43 being bifurcated and all of said lugs being formed with aligned openings through which stub shafts 44, 45 and 46, extend. Mounted in overlying relation to the table 40 and connected thereto through the stub shafts 44, 45 and 46, is a cradle member 4l, the top surface of the base of which is of concave form, as indicated at 48. At one end the cradle member has three spaced arms 49, 50 and 5I, which extend upwardly substantially'at right angles to the base, the ends of said arms adjacent the table being complementally formed with respect to the lugs 4I, 42 and 43, respectively, and have extendings, the lugs 4I., 42 and 43, are fixedly mounted' respectively. As indicated' in Fig. 3 of the drawby -set .screws to engage their respective stub shafts which are thereby' caused to move with the lugs vas the table is tilted, and to carry with them the cradle 41. For reducing the over all weight of the parts carried by the turntable the various parts described are formed either of reinforced web or hollow web construction.

The coil transfer means as a whole is disposed laterally adjacent the coiler of a strip mill, the mandrel 52 of which is shown in Fig. 1 with the cancaved base 48 of the cradle normally disposed in alignment Ywith the mandrel somewhat below the latter to receive a coil of strip material when axially discharged from the coiler. To facilitate the reception of such coil upon its discharge, the free end of the cradle, that is, the end lying parallel to the end of the coiler, is tapered downwardly as indicated at 53. Where a coil of relatively small diameter is to be received upon the coil transfer means a supplemental base member such as 54 may be mounted on the concave surface of the cradle so that the drop of the coil upon its discharge will not be more than necessary. The length of the cradle is such as to accommodate any width of coll capable of being wound by the coiler.

Disposed in spaced relation substantial distance below the vaxis thereof and extending at substantially a right angle to said axis is a conveyor 55 of any approved type which is adapted to receive the coils from the up-ender in end up position and transport said coils to a place of storage or directly to the pickling baths for treatment. Preferably the conveyoris of the chain or link belt type and comprises a plurality of parallelly-disposed carriers movable in a common plane and adapted to support the coils in end upposition. As herein shown, the conveyor consists of two parallel lines of movable carriers spaced apart a distance less than the diameter of the coils to be transported thereby. For cooperation with the conveyor, the arms 49, 50 and 5|, constituting the end wall of the cradle, are so spaced apart and dimensioned as to straddle the parallel lines of the movable carrier and seat below the surfaces thereof when the upender is tilted to deposit a coil upon the conveyor. The relative positions of the end arms 49, 50 and 5|, with respect to the conveyor elements 55 are illustrated in broken lines in Figs. 1 and 2 of the drawings.

'I'he coils adapted to be transferred by the means herein disclosed are relatively heavy, and to absorb the shock of the impact of a coil upon being discharged onto the cradle, is taken up by shock absorbing or cushioning means 55', which, as herein shown, consists of a heavy coil spring or springs mounted upon a rod 56 supported on the under side of the cradle preferably along the center line thereof and extending through an opening in the table 40, thev under` side of which provides one abutment for the spring and the other abutment being provided by a flangel on adjustable nut 51. The turntable, upon reaching the limits of its movements, engages stops or abutments; and.v to cushion the impacts with these stops, suitable veyor with respect to themandrel, and the means I 59 v'being mountedl on the supporto;-'rest'inemf 4 ber I6. The up-'ender in its movementsfabout'i- .its pivot also is vsubject tojimpact. :the'shockof which is cushioned'by shock absorbing means' to the coilerv a shock-absorbing means are provided, as shown at 58 and 59.'

6I as the upender is moved 'downwardly into coil discharging position, and' byy shock absorbing means 62v as the up-ender is returned toits initial position. I

In the operation o f the coil transfer means the parts will normally be in the relation shown alignment with, but below, the axis of the coiler.

l0. in Fig. 1 with the cradle of the up-ender inv i'.

Upon a coil of strip material 63 being discharged from the mandrel 52 it. will be received upon the cradle of the up-ender'and the shock of its rel ception will be borne by the shock absorbing means 55'. The electric motor I1 lis then operated to rotate the shaft I5, and with it the turntable, to bring the up-ender into overlying relation to the conveyor 55. When this'position is attained, the motor is automatically stopped and the motor 30 is then operated to tiltthe upender about its pivot shaft 3 8. As this pivoting takes place toA tilt the upfender, the movable carriers of the conveyor are temporarily stopped and the coil 63 is deposited in end up relation' is then set in motion to carry the coil Yout of the path of the up-ender, which is thereupon tiltedl back to its former position and the turntable rotated to its initial position. l

From the foregoing detailed description it will be apparent that our invention is adapted to accomplish` the various objects recited in the4 opening statement of this specification, and although we have shown and described a specific embodiment of our invention which has proven practicable, it is to be understood that changes in the constructional features disclosed may be resorted to within the range of engineering skill without departing from the spirit of the invention.

What we claim is: 1. In combination, a coiler, a coil transfer means adjacent the coiler adapted to receive a coil of strip material upon its discharge from the n l coiler and a travelling conveyor below the coiler movable atv substantially a right angle to the axis of the coiler, said coil transfer means comprising a normally substantially horizontally dis posed cradle for receiving a coil on its side upon discharge of the coil from the coiler, said cradle being disposed above the conveyor and .being tiltable to discharge a coil in end-up position upon the conveyor.

2. In combination, a lcoiler, a coil transfer means adjacent the coiler adapted to receive a coil of strip material upon its discharge from the coiler and a travelling conveyor vlaterally'spaced from and below the coiler and movable at substantially a right angle to the axis of the coiler,

`said coil transfer means being disposed between the coiler and the lconveyor and comprising a turntable having a normally substantially horizontally disposed cradle for receiving a coil on its sideupon discharge of the coil from the coiler, said cradle being mounted for tilting" about a horizontal axis, means for rotating the turntable to rbring the cradle into overlying relation to the conveyor and means for vtilting the cradle to 'transfer a coil onto the conveyor in end-up position.

3. Coil transfer means comprising a stationary unit having a vertical shaft supported thereby, a rotatable unit mounted to rotate about the axis of said shaft, a tilting unit mounted on a shaft canied by the rotatable unit and disposed in a plane which is normal to the axis of the vertical shaft, means for rotating the rotatable unit about the axis of the vertical shaft through an arc of approximately 90, means for tilting the tiltable unit about its shaft through an arc of approximately 90 and resilient means for cushioning the impact of said tiltable unit as it reaches the limits of its movements.

4. Coil transfer means comprising a stationary unit having a vertical shaft supported thereby, a rotatable unit mounted to rotate about the axis of said shaft, a tilting unit mounted on a shaft carried by the rotatable unit and disposedin a planey which is normal to the axis of the vertical shaft, means for rotating the rotatable unit about the axis of the vertical shaft through anarc of approximately 90, means for tilting the tiltable unit about its shaft through an arc of approximately 90, and resilient means for cushioning the impact of said movable units as they reach the limits of their respective movements.

5. Coil transfer means including an up-ender comprising a rotatable shaft, a table xedly mounted on said shaft, and a cradle connected to said table along one edge thereof, said cradle having a concave seat overlying the table and an end wall substantially perpendicular to the top of the table.

7. Coil transfer means including an up-ender comprising a rotatable shaft, a table flxedly mounted on said shaft and having a plurality of spaced lugs projecting from one edge thereof, and a cradle overlying the table and being connected thereto at the lugs thereof, and resilientmeans between the table and cradle for cushioning the impact upon the latter when a coil is received l on the cradle.

8. Coil transfer means including an up-ender comprising a rotatable shaft, a table xedly mounted on said shaft and having a plurality of spaced lugs projecting from one edge thereof, and a cradle overlying the table and having an `end wall formed as projecting arms, the ends thereof adjacent the table being connected thereto at the lugs thereof.

LEONARD W. NASH. GEORGE A. MARTIN.

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