US2117640A - Coiling reel - Google Patents

Description

\ May 17, 1938.

R. J. WEAN ET AL COILING REEL Filed NOV. 24, 1936 3 Sheets-Sheet l 'Nvll May I7, 1938. R. J. WEAN ETAL.

COILING REEL Filed Nov. 24, 1936 3 Sheets-Sheet 2 May 17, 1938. R. J. WEAN ET A1.

COILING REEL Filed Nov. 24, 1956 3 Sheets-Sheet 3 ,aN-KQ@ /wkwfr/ UoNI 4 QN www www. QN m a fr @QN .w .55N M I I I IINMIIIIIIIIIIIIIIII 7 FII N ,WN V wm wm I. II I IJ J J1 Nm. u MN NHNI QN MM. M1 IGN. RL I.| IWIII, NWIIIIL T.. MM Nm. @mm N R\ #WW K/ wm. www. N NQ L ww. .n.mv @E I I :TIII I .n I I ,Nm V. I m, NIW I mw II 4 Sm. QW Nw. w NN mw Awww SN. MWQN WNW/NN QN Sw w Nw mw am .v QNJ wm V IIIIIIIIIIIIII II IIIIIII Iv@ Q .a @Qs I .Q .w 5N mw ww Patented May 17, 1938 UNITED STATES CDILING REEL Raymond J. wenn and Donald A. McArthur. Warren, Ohio, assignors to The Wean Engineering Company, Incorporated, Warren,

a corporation of Ohio Ohio,

Application November 24, 1936, Serial No. 112,551

10 Claims.

'Ihis invention relates to an apparatus for coiling and, in particular, to a device for ceiling strip material in long lengths under substantial tension.` 5 Coiling reels as heretofore constructed have generally consisted of a collapsible mandrel Vmounted on a suitable supporting housing, the mandrel acting as a cantilever, and being driven by any suitable power means to exert a substantial tension on the material being coiled as it issues from a rolling mill, for example. Ceiling lreels of this type are satisfactory for smaller widths of strip. When widths of the order of 40" or above are to be handled, however, the '15 defiection of the free end of the `mandrel is such i that the tension applied to the strip by the coiling reel is not uniform across the width of the strip. Since the tension controls the amount of reduction which is effected in the mill, the strip is thus of non-uniform thickness. When it is sheared to length and further processed, this non-uniformity introduces a longitudinal camber into the lengths. n

Our invention overcomes the aforementioned objections to the ceiling devices as previously constructed, and provides a device capable of ceiling strip of any width, under the desired tension, without objectionable deflection of the mandrei. In accordance with our invention, We proone of which is movable toward the other. Each mandrel has adjacent its end cooperating interiitting means effective when the mandrels are abutted, to increase the resistance thereof to deection under the coiiing load. Each mandrel is provided with an anchor slot for receiving the leading end of a length to be coiled, and we provide means for driving the mandrels such that they are always maintained in a predetermined angular relation so that the anchor slots in the two mandrels are always in line. We also provide means of novel construction for advancing and retracting the mandrels.

Further details of the invention will become apparent in the course of the following description, referring to the accompanying drawings. In thev drawings,

Fig. 1 is a plan view of a coiling reel in accordance with 'our invention;

Fig. 2 is a side elevation thereof partly broken away;

Fig. 3 is a partial sectional view to enlarged scale on the line II-III of Fig. 1;

Figure 3A is a partial sectional view taken along the line IIIA- IIIA of Figure 3; and

vide a pair of axially alined mandrels, at least Fig. 4 is a sectional view along the line IV--IV of Fig. 3 with parts omitted; and

Fig. 5 is a diagram of the driving gears.

Referring now in detail to the drawings, our coiling reel comprises essentially a pair of axially alined mandrels I and I l, mounted for advancement into abutting engagement and retraction, and a lifting saddle l2 there below adapted to receive and hold a coil when the mandrels are withdrawn. The saddle comprises a seat I3 supported on the base Hl for vertical movement relative thereto. Guides l extend downwardly from the seat through suitable bearings in the base. The vertical adjustment of the seat is accomplished by a screw i6 threaded through a nut in the base. The motor I'l drives the nut through suitable gearing (not shown).

The mandrels il) and ll and their supports are identical except for minor details. Each mandrel comprises a plurality of segments i8 dovetailed to an arbor I9 by flanges lsb, as best shown in Figs. 3 and d. The several segments it have interitting, overlapping projections or teeth la whereby a substantially smooth circumference is presented whether the segments are collapsed or expanded. Cooperating inclined surfaces t@ and 2l on the segments and arbor cause the segments to be expanded on movement of the arbor axially thereof. The dovetailed relation between the segments and the inclined portions of the arbor causes collapsing movement of the segments on reverse movement of the arbor relative thereto. A stop ring 2id limits axial movement of the arbor i9 relative to the segments it.

An anchor slot 22 is formed in one of the segments it for receiving the leading end of a length of strip to be coiled.

The means supporting the mandrel for rotation and axial reciprocation comprises a xed housing 23 secured to a base 2d resting on any suitable foundation 25. The housing 23 is cored, machined, and provided with bearings 26 at each end whereby to receive and support for rotation, a cylinder 2l. The housing 23 includes also a gear case 28. A driving gear 29 is disposed on the cylinder 2l within the case 28.

A piston 30 is slidable axially in the cylinder 2l but rotates therewith by reason of a feather key 3l'. The piston has spaced end walls 32 and 433, each having bearing bushings 32a and 33a spacing them from the bore of the cylinder 2l. 'I'he end walls 32 and 33 are connected by a cylindrical wall 34 and radial webs 85.

'Ihe cylindrical wall 34 of the piston 30 is cored and machined to receive the inner end of the arbor I9 which is secured therein by screws 33. The arbor and the segments carried thereby are thus caused to rotate with the piston 30 and the cylinder 21 when the gear 29 is driven. The

inner ends of the segments I3 have outwardly extending flanges 31 which fit loosely between the end wall 33 of the piston 30, and a stop ring 33 secured to the inner end of the cylinder 21.

A cylinder 39 is positioned within a bore through the arbor I9, bearings 40 and 4I permitting rotation of the arbor about the cylinder. The inner end of the cylinder 39 is closed by a head 42 secured thereto in any desired manner. A stub shaft 43 extends inwardly from the head 42, being secured therein by a lock nut 44. The inner end of the head 42 is seated in a bearing 4Ia. A tapering stud member 45 is rotatably mounted at the inner end of the shaft 43 on a bearing 46. The stud member 45 cooperates with a socket member 41 similarly mounted on the mandrel II. The segments I8 of the mandrels have conical abutting surfaces 48.

A piston 49 is supported in fixed p osition within the cylinder 39 on a hollow piston rod 50, the outer end of which is anchored to a suitable abutment I (Fig. 1). A radial hole 52 in the rod 59 permits fluid to be supplied through the latter to the space on the left-hand side of the piston 49. A pipe 53 extending through the rod 50 com- 30 .municates with the space on the right-hand side of the piston 49 through a port 54 in the latter. The left-hand end of the cylinder 39 is closed by a head 55 which may conveniently be bolted by bolts 55a to a yoke 56 welded or otherwise secured to the cylinder 39. A packing gland closes the space between the head 55 and the rod 50.

When fluid under pressure is supplied through the rod 50 and the hole 52,` the cylinder 39 moves to the left inasmuch as the piston 49 is held stationary. Leftward movement of the cylinder 39 is caused by the pressure of the fluid admitted thereto acting on thepiston 49 and the cylinder head 55. The stub shaft :43, being secured to the cylinder head 42, moves with the cylinder 39 and withdraws the stud member 45,4 andv with it the arbor I9 and the piston. 39. The segments I3, however, do not initially m'ove with the arbor I9.

Spring-pressed plungers 53 mounted in thev end wall 32 of the piston 30 and extendihgthrough holes in the other end wall 33 intoeng'agement with the segment flanges 31,-hold the segments in their illustrated positions until the stop ring 2Ia engages the endsof the inclined surfaces 20.

This initial movement of the. arbor I9, while the segments are maintained. against axial movement, causes the latterto'be l,collapsed for easy withdrawal from a coil 59 'surrounding the mandrel. Thereafter, the segments I8 move with the cylinder 39. and the constructionis such that the mandrel I9 may be entirely withdrawn from the coil.

A stripper plate 60 is', slidably mounted on the housing 23 by guide rods 6I traversing bearings 32. A cylinder 63 carried on the housing is provided with a piston 64 having a rod 65 connected to the plate 60. The stripper plate may be used to hold the coil against the thrust applied to the arbor, to withdraw the mandrel from the coil or to square up the coil if the successive turns do not fwrap true thereon. A spring-pressed block 66 is movably mounted on the plate 60 and is normally urged against the segments I3 to engage the edges of the innermost turns of the coil, since a definite clearance must be provided between the lower edge of the plate 60 and the segments I9.

Cylindrical guides 61 are mounted on the housing 23 and are adapted to receive slide rods extending rearwardly from the yoke 53. These rods prevent rotation of the cylinder 39 as the cylinder 21 turns.

After retraction of the mandrel, it may again be advanced to its illustrated position by delivering fluid under pressure through the pipe 53. The cylinder 39 is then forced to the right and carries the mandrel I0 with it until it abuts the mandrel II in the manner indicated in Fig. 3. After the engagement of the segment flanges 31 with the stop ring 39, continued movement of the piston 30 expands the segments I8 and restores the plungers 53 to their illustrated position.

The gears -29 of the two mandrels are driven by pinions 68a, in housings 63. The pinions are connected by a cross shaft 39 which is, in turn, driven by a pinion a enclosed in a. housing 10. This pinion is driven by a motor 1I through a hydraulic drive including a pump 12 and motor 13 coupled to the shaft on which the pinion is carried. This drive permanently ties the two mandrels together, and always maintains them in predetermined angular relation, ensuring that the anchor slots in the two mandrels will always be in line.

If it is desired to handle large coils, over-size segments, indicated in chain lines at 14, may be bolted to the segments I8. In this event, a ller block is removed to permit the over-size segments to be keyed to the segments I8.

It will be clear from the foregoing description that when the mandrels I0 and II are advanced into abutting engagement, as shown in Fig. 3, the cooperation of the conical surfaces 48 thereof and the interfltting relation of the stud member 45 with the socket member 41 will provide a substantially continuous beam member to withstand the load imposed thereon by the coiling operation. The resistance of the two mandrels lto deflection when so united, is naturally greater than the sum of the individual .esistances of two similar mandrels supported independently as cantilevers. The shape of the cooperating parts of the two mandrels is such that a proper engagement thereof on advancement of the mandrels is assured at all times. The initial withdrawal of the mandrels, however, effects an immediate separation thereof.

The coiling apparatus described above, because of its increased rigidity and resistance to deflection, is capable of handling coils of wide strip without causing an objectionable lack of uniformity in the tension of the material being coiled, across the width thereof. A more uniform product is thus obtained. and all diiiiculties with cambering of sheared lengths in subsequent processing is avoided.

While we have illustrated and described herein but a preferred embodiment of the invention, it will be understood that changes in the construction disclosed may be made Within the spirit of the invention and the scope of the appended claims.

We claim;

1. The combination with a pair of alined, collapsible mandrels, and retractable means for rotatably supporting each mandrel, the outer ends of said mandrels being adapted to abut and having mating portions, of means for locking said mandrels in predetermined angular relation to each other.

2. The combination with a pair of alined, collapsible mandrels, and retractable means for rotatably supporting each mandrel, the outer ends of said mandrels being adapted to abut and having mating portions, of mechanical means for locking said mandrels in predetermined angular relation to each other.

3. Coiiing apparatus comprising a pair of. alined, collapsible mandrels, supports for said mandrels at least one being movable axially there of, and means for rotating -said Bupprts includ- Y ing shafting and gearing connecting the supports and maintaining them in predetermined angular relation to each other.

4. A coiling reel comprising two alined, collapsible mandrels, means supporting said mandrels for rotation, means for moving at least one of the supporting means axially of the mandrels, and a common drive for rotating said supporting means.

5. A coiling reel comprising two alined, collapsible mandrels. means supporting saidmandrels for rotation, means for moving at least one of the supporting means axially oi.' the mandrels, and means for rotating said supporting means.

6. A coiling mandrel comprising a central arbor, collapsible segments carried thereon, means supporting the arbor as a cantilever, a cylinder xed against rotation onwhich said arbor is rotatable, a stub shaft projecting from said cylinder and rigid therewith, and bearings between the shaft and arbor permitting rotation of the latter on the former.

'7. The apparatus defined by claim 6 characterized by a member carried at the end of said shaft for cooperation with a corresponding member carried by a similar mandrel in alinement with the Erst-mentioned mandrel.

8. The apparatus dened by claim 6 characterized by a second mandrel similar to the first.

mentioned mandrel and disposed in alinement therewith, the stub shafts of the two mandrels having tapered stud and socket members adapted to engage on axial movement of one mandrel relative to the other, constituting said mandrels substantially a continuous beam. y

9. Ceiling apparatus comprising a pair of axially alined mandrels each having a central arbor and collapsing segments carried thereby', and tapered stud and socket members carried by said arbors for interl'itting engagement, the segments of the mandrels also having conical cooperating surfaces.

ill., Coiling apparatus comprising a pair of f lined mandrels, means supporting at least one oi the mandrels for axial movement whereby the outer ends of the mandrels abut, said mandrels having interiitting portions which, when the mandrels are abutted, cause them to act substantially as .a continuous beam for withstanding the coiling load, said mandrels including a centrai arbor and collapsing segments carried thereby, the arbor and segments of thetwomandrels having cooperating surfaces of conical shape to provide said interlitting portions.

RAYMOND J. WEAN. DONALD A. MCARTHUR.

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