US2343720A - Sheet material slitting and winding machine - Google Patents

Description

March 7, 1944. i, VAN NQRDE 2,343,720

SHEET MATERIAL SLITTING AND WINDING MACHINE INVENTOR,

/ ATTORNEY. I

March 7, 1944. P. VAN NoRDE 2,343,720

SHEET MATERIAL SLITTING AND WINDING' MACHINE Filed' Feb. 2, 194:5 5 sneek-sheet 2 H i fl "I n n '"f 1w-...1,

INVENTOR.

@aww-imm@ s 5% @MMEK March 7, v1944.

P. VAN NoRDE SHEET MATERIAL SLITTING AND WINDING MACHINE Filed Feb. 2, 194 3 5 Sheets-Sheet 3 INVENTOR. er @aNd-fda,

. ATTORY.

* j March 7, 1944 'Y P. VAN NORDE 2,343,720

SHEET MATERIAL SLITTING AND WINDING MACHINE Filed Feb. 2, 194s 5 sheets-sheet 4 illll'll 'IIIIMIIIIIIIIHIIIIIIlllllllillllIIIIIIIIIIIIIIIHIII INVENTOR.

BY zgn Mme,

76 t ATTQRNEY.

March 7, 1944. P. VAN NoRDE SHEET MATERIAL SLITTING AND WINDING MACHINE Filed Feb. 2, 1943 5 Sheets-Sheet 5 INVENT OR.

A TTORNEY.

Patented Mar. 7, 1944 anni UNITE-D STATES PATENT D'FFICE'.

SHE-ET MATERIALSLITTIN G AND VVINDING MACHINE Peter Van Norde, Summit, N. J., assigner to Irv ington Varnishfaa InsulatorCo., Irvington, N. J a corporation of New Jersey Application February 2, 1943, Serial No. 474,431

46 Claims.

transmission from one said set to another at will,

according to a selected strip Width desired to be produced.

The invention has for a further object to pro- .vide a novel construction of strip winding mchanism and self-compensating power transmis- `sion means therefor; said winding rh'echanisin V including novel contractable mandrel structures having supporting spindles, and displaceably 're- Other objects of this invention, not at this time more particularly enumerated, will be understood from the following detailed description of the same.

An illustrative embodiment of this invention is shown in the `accompanying drawings, whichz- Fig. 1 is la side elevational view of a sheet material slitting and winding machine according to this invention; the sheet inateiials being indicated by broken lines; Fig. 2 is a plan View of the machine, the sheet materials being likewise indicated by broken lines in this View; Fig. 8 is a central longitudinal vertical section through the machine, the sheet materials being shown in full line representation; and Fig. 4 is a fragmentary transverse sectional view, taken on line 4-4 in Fig. 3, and showing the clutch shaft of the machine.

Fig. 5 is a side elevational view or the slitting head of the machine, including its power transmission shift means, this View being draw-n on an enlarged scale; and Fig. r6 is a fragmentary View of said slitting head in part section and in part elevation, taken on line 6 6 in Fig. 5'..

Fig. 7 is a transverse .sectional view-, taken on line 'l-l' in Fig. 3, and showing a winding manchine.

drel and its spindle bearing supports in elevation.

Fig. is a longitudinal sectional view, on an enlarged scale, of a wiriding mandrel, internal parts .being shown in both section and elevation.

Similar characters of reference are employed in the above described views to indicate correspending parts.

Referring -to the drawings, the reference character l0 indicates the main' framework vrof the machine, the same including, 'at one side, an eX- tension 'framework ll and lan outwardly vspaced .parallel cooperating 'framework l2 for supporting the spindles of the winding mechanism of themachine.

Supported on and across the top of the main `framework Il) is the slitting. head of the ma'- This slitting head includes 'side standards i3 shaped to provide upper rearward bearing housings I4 and lowerfo'rward bearing housings l5. Supported in the housings I4 are the bearings i8 for journaling an upper set of 'cutting rol-ls formed by shafts- Il 'and i8 upon `which are respectively aixed the hubs of Lcooperating circular slitting knives i9 and 2li. In like manner, supported in the housings l5 .are the bearings 2l for journaling a lower set of cutting rol-ls formed byl shafts 22 and 23 uponwhich `'are respectively aflixed .the hubs o'f cooperating circular slitting knives 24 and 25. The pairs of slitting knives IB-Zil of the upper set o cutting rolls are suitably relatively spaced .to slit sheet material passed therebetween into str-ips of 'one selected width, while the pairs of slitting knives 24.-25 of the lower set of cutting rolls are rsuitably relatively spaced to slit sheet material passed therebetween into strips of another selected width. The shafts Hee-I8 of the upper cuttingr rolls `are provided with intermeshing `gears 2E 'and 2l, whereb-y the same are operaltively rotated in opposite directions; and, in like manner, the shafts 22 Aand .2-3 of the lower cuting 'rolls are provided with intermeshing gears 28 'and29.

Journraled in and between the side standards I3, for cooperation with the upper sety of cutting rolls, is a rearward pair Aof yifertically aligned guide rollers 30 and a forward pair o'f like vertically aligned guide rollers 35|. Also journaled in and between the side standards i3, yfor cooperation with vthe lower vset of cutting rolls, is a rearward pair of vertically-aligned guide rollers 32 and a forward pair of vvertically aligned guide rollers 33.

Journaled in and between the side standards I3, below the upper set of cutting rolls and rearwardly of the lower set of cutting rolls, is a power transmission shaft 34 having a drive gear 35 fixed thereon. Manipulatable power transmission shift means is provided for optionally transmitting the power of said transmission shaft to one or the other of said cutting roll sets. Said shift means comprises a bracket 36 mounted to pivotally swing about the axis of said transmission shaft 34, said bracket having a radial arm 31 for the support of a bearing stud 38 upon which is rotatably mounted an idler gear 39 adapted to run in continuous mesh with said drive gear 35. Said bracket 36 is further provided with a slotted extension 40, the slot 4| ofwhich is concentric to the center of pivot- ;al movement of the bracket. Afxed to the adjacent side standard I3 is a stop stud 42 which extends into said slot 4|. Carried by the extension 40, respectively for entrance into opposite ends of the slot 4I, are adjustable stop screws 43 and 44 which, by engagement with the stop stud 42, limit the swinging movement of the bracket in each direction to that which is sufficient to carry its idler gear 39 into proper meshing engagement with the gearing of the upper or lower cutting roll sets, as the case, may be. Amxed to and extending from said bracket extension is a handle member 45 by which the transmission shift means may be manipulated.

Journaled in and between bearings 46 supported in connection with lower parts of the main framework I is a power shaft 41, the same being continuously driven from a suitable power source, such, e. g., as an electric motor 48, by suitable transmission means, such, e. g., as the chain belt and pulley means 48.

Also journaled in and between bearings 50, with which the machine framework is provided, is a counter or clutch shaft upon which is rotatably mounted a clutch gear 52 driven from the power shaft 41 by a drive gear 53. Keyed to said counter or clutch shaft 5I is a shiftable clutch means 54 subject to the control of the shift lever 55 (see Figs. 2 and 4).

Power is transmitted from the counter or clutch shaft 5| to the transmission shaft 34 of the slitting head by a sprocket and chain drive 56,

or the like.

Alxed to the framework I0, at the rearward end thereof, are transversely aligned bracket extensions 51 carrying open bearings 58. Supported by and extending between said bearings 58 is a shaft 59 adapted to receive and rotatably support a supply roll 60 of the sheet material S to be slit.

Connected with the framework Ill, to upstand therefrom adjacent the rearward end thereof, are standards 6|. Supported from said standards 6| are pivotally mounted arms 62, to and between the free end portions of which is journaled a drag or momentum brake or roller 63,

adapted to bear on said material supply roll |50` this end, the framework I0 is provided with suitably disposed brackets 64 provided with bearings 65 to journal a winding shaft 65, by and upon which said interleaf or protective sheet I may be wound into a separate roll 61. Said winding shaft 66 is adapted to be driven from the counter gg clutch shaft 5| by a sprocket and chain drive Forwardly positioned beyond the slitting head are a plurality of slit material or strip winding means, the same being relatively spaced both in vertical and horizontal plane, so that selected strips S' of slit material issuing from the slitting head are led to one winding means whereby to be wound thereby into laterally separated individual rolls R, while alternate strips S" of said slit material are led to another winding means so as to be wound thereby into laterally separated individual rolls R.

Each winding means comprises a spindle 69 rotatably supported by one end portion in spaced bearings 10 and 1| respectively mounted on the framework extensions and l2, whereby the spindle 68 extends transversely across the paths of the strips S' and S issuing from the slitting head. Each spindle 65 is driven by a self-compensating frictional drive comprising a friction clutch plate 12 fast thereon, and thrust friction clutch plate 13 keyed to the spindle so as to rotate therewith but free for axial movement thereon toward the fixed clutch plate 12 under the tensional thrust of a compression spring 14. The spring 14 is footed on a thrust collar 15 adjustably threaded onto a threaded bushing 16 which is fast on the spindle, whereby the thrust collar 15 may be advanced or retracted so as to adjust or regulate the thrusting tension of the spring 14. One spindle is driven from the transmission shaft 34 by a sprocket and chain drive 11 including a double sprocket 18-18' rotatably mounted on said spindle between the xed clutch plate 12 and the movable or thrust clutch plate 13, the sprocket and chain drive 11 engaging the sprocket portion 18. 'I'he other spindle is driven from the sprocket portion 18' by a chain and sprocket drive 19, the driven sprocket of which is rotatably mounted on said spindle between its xed clutch plate 12 and its movable or thrust clutch plate 13.

The free end of each spindle 69 is normally suported by a displaceably releasable bearing support. Each said support comprises a bearing standard 8|, the lower end of which is pivotally connected by a cross or fulcrum pin 82 to a hinging knuckle 83 which is affixed to va stationary base frame 84. Said bearing standard is thus hingedly arranged to swing toward and from the free end portion of a spindle 68 to be supported thereby. Aiiixed to the free end of said spindle 69 is a conical bushing 85, provided in its inner end portion with an annular latch receiving channel 86. Formed in the upper free end portion of the bearing standard 8| is a conical bearing seat 81 adapted to receive and iit said bushing 85 when the bearing standard 8l is upswung to its normally erect spindle supporting position.- The upper free end portion of the bearing standard 8| is further provided with a manipulatable latch means for releasably retaining the same in spindle supporting position. This latch means may be variously formed, but illustratively, as shown, comprises a pair of spaced lugs 88 projecting inwardly from the bearing standard in overhanglng relation to' the inner end portion of said conical bushing 85 which is fixed on the pleted, and. the machine: is stopped, the exc-- spindle end. Slidably supported through said lugs 88 is the stem 89 of a latch piece 90. Spring means 9| yieldably thrusts said stem and latch piece downwardly, so that the latter enters the annular channel 86 of said bushing 85, whereby to retain said bearing standard in erected spindle supporting position, but subject to release by upward retraction of said stem and latch piece against the thrust of the spring 9|.. When a bearing standard 8| is released from the restraint of said latch means, the same may be swung outwardly and downwardly away from the spindle end portion, whereby to leave the latter free so that completed strip rolls R or R', as the case may be, can be moved axially over and off oi the spindle end,. and thus be dismounted from the winding mechanism. The released down swung position of a bearing standard 8| may be determined by a stop nosing 92, suitably formed and located thereon, which is adapted to abut its hinging knuckle 83, when the bearing standard is down-swung.

Each spindle is provided with a winding mandrel upon'which the strips S' and S are respectively wound into rolls R and R'. mandrel is so constructed as to be diametrically c'ontractible,` whereby to facilitate removal of the woundrolls therefrom. Tol this end, each Winding mandrel comprises a plurality of longitudinally spaced spiders 93 ai'xed to a spindle 69, each said spider having a series of circumferentially spaced, radially projecting slideway boxes 94. Slidably supported in longitudinally aligned boxes are carrier legs 95 which support the segmental peripheral sections 96 by which the circumferential surface of the mandrel is formed. Each leg 95 is provided at its inner end with an anti-friction roller 91. Cooperative with each spiderg is a mandrel expander collar S8 having-an annular wedge-shaped or conical forward end portion 39. These expander collars 9B are slidable on theY spindle 69 but are keyed thereto, so as to rotate therewith, by keys |00. The several expander collars 9B are interconnected for common forward and backward sliding movement on the spindle 69; the connecting means comprising link rods IUI which extend through and are amxed to radial ears |02 with which the expander collars are provided. Said link rods are preferably further supported by a sliding engagement thereof through perforate radial guide lugs m3 with which the spiders 93 are provided. An end expander collar 98, exposed atan end of the mandrel structure, is

accessible for manipulation, whereby to longif1.

tudinally shift the linked group of said expander collars toward the spiders 93 to expand the mandrel, or away from said spiders to contract the mandrel. Said end expander collar may be suitably shaped, as, e. g., by provision of an annular channel or groove |04 therein, toreceive application of a suitable manipulating tool for applying shifting force in desired direction. When the group of expander collars S8 are moved from right to left (as viewed in Fig. 8), the wedge or conical end portions 99 thereof will ride against the rollers 9T of the legs 95 so as to slide the latter outwardly until said rollers ride onto the normal periphery of said expander collars.

The outward movement of the legs 95 radially project the segmental peripheral sections 9% so as to expand the mandrel to normal maximum operative diameter; which condition is maintained during strip winding operation thereof. When said strip winding operation has been com- The winding pander collars 98l are retracted, thus; permitting the legsr 95` to slide inwardly in their spider guide boxes, thus retracting the segmental peripheral sections. 96 so as to contract the mandrel diametrically, whereby to loosen the same from strip rolls Woundv thereon, and thus facilitate endwise withdrawal` and removal of said rolls therefrom;

In the operation of the machine, the sheet material S may be optionally slit into strips of desired selective. width by passingl the same between one. or the other of the pairs of slitting rolls. As shown', the upper rearward set of q slitting rolls has its pairs of slitting knives l920 spaced to produce a comparatively nar`- rowstrip, while the 1ower forward'set of slitting rolls has its pairs of slitting knives 24-25 spaced to produce a comparatively broad strip. If it is desired'.4 to usethe upper rearward set of slitting rolls, the shift bracket means 36--31 is swungindirectionto bring the idler gear 39'into mesh with the gearing: 2li- 2,1 of the slitting knives ISI-2,0 (as shown by full lines in Fig. 5), thus driving: the latter from the drive gearv 35 of the drivenA transmission shaft 34. If, on the otherhand, itz is desired to use the lower forward set ofslitting rolls, the shift bracket means 36-31-40 is` swung in direction to bring the idler gear 38 into mesh with the gearing 23e-29 of the slitting knives 24-25 (as shown by dotted lines in Fig. 5*) thus disconnecting the rearward upper set of slitting rolls anddriving the lower set of Vslittingv rolls from the drive gear 35 of the driven transmission shaft 34.

As shown, the material S is led from thesupply. roll 60 to pass between and be operated upon by the-upper rearward set of slitting rolls. The material is passed between the guide rollers" 3l),

= thence between the slitting knives lil-0, and

" to the second winding mandrel and suitably secured thereto. The material S being thus operatively related to the slitting and winding mechanisms, the clutch 52-54 is engaged so as to transmit power to said mechanisms'. As the mandrels are revolved thel material S will be drawn from the supply roll SG and passed through the slitting knives lll-20 to produce the strips S' and S" which will thereupon be respectively wound onto the respective mandrels so as to form the spaced apart rolls R and R thereof. If the supply roll El? includes an interleaf or protective sheet I, the same is led to the driven. windingshaft 66, so as to be separated from the web of sheet material S, and then wound into a separate roll B'l.

Asv the strips S and S" are wound on the mandrels` and the rolls R and R' formed therefrom increase in diameter, the pull tension oi the material, which tends to increase with the increase of roll. diameter, will be equalized or automatically compensated by reason of the frictiondrive between the spindle clutch plates 'l2 and 13 and the intermediate sprockets 'J8-'lil' or 8|) which Willpermit a tension compensating slippage of the latter relative to the former, and consequently undue tension upon or too vrapid movement of the material and strips will be automatically prevented.

After the rolls R and R' are wound to desired sizeprovision is made for applying a peripheral cover for wrapper thereongif. desired. To'this end,'the standards 8l are provided'with suitably located brackets |05 to support open bearings I U6 in and between which is journaled a shaft IDT provided to carry a-roll of wrapper material W. If it is desired to wrap the formed rolls R and R', the machine is temporarily stopped, and the leading end of the wrapper material W is superposed and suitably fastened to the material S, as by an adhesive, adhesive tape, or other suitable fastening, after which the material S is severed behind the point to which said wrapper material is thus attached. This having been done, the machine is again operated whereby to draw the wrapper material through the slitting rolls, and the resultant strip thereof to and around the respective rolls R and R' so as to encircle the same, and thereafter the machine is again stopped whereupon the wrapper strips are severed, and the trailing ends thereof lapped and secured to the applied Wrapper body, as' by an adhesive, adhesive tape or other suitable fastening means.

The rolls R and R being thus produced, the same may be quickly'removed from the machine,

by releasing an displacing the spindle bearing supthe scope thereof as defined in the following claims. It is therefore intended that all matter contained in the above description or shown 'in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

Iclaim:

l.. A sheet material slitting and winding mechanism comprising a slitting head having cutting rolls to slit sheet material into a multiplicity of strips, means to rotatably support a supply roll of sheet material for delivery to said cutting rolls, an interleaf winding means to separate, receive and wind interleaf material .from the sheet material issuing from said supply roll, a clutch controlled power transmission shaft, transmission means actuated by said shaft for operating said interleaf winding means, additional transmission means actuated by said shaft for oper.- ating said cutting rolls, a plurality of diametrically contractable winding mandrels beyond said slitting head disposed in vertically and horizontally spaced plane relation, whereby alternate strips issuing from the cutting rolls are divergently separated and respectively led to and wound by and upon said respective mandrels, and transmission means for each mandrel likewise deriving power from said clutch controlled shaft, each mandrel transmission means including compensating frictional slip .clutch means.

2. A sheet material slitting and winding mechanism comprising a slitting head having cutting rolls to slit sheet material into a multiplicity of strips, means to rotatably support a supply roll of sheet material for delivery to said cutting rolls, an interleaf winding means to separate, receive and wind interleaf material from the sheet material issuing from said supply roll, a clutch controlled power transmission shaft, 4transmission means actuated by said shaft for operating said interleaf winding means, additional transmission means actuated by said shaft for operating said ill) cutting rolls, a plurality of diametrically contractable winding mandrels beyond said slitting head disposed in vertically and horizontally spaced plane relation, whereby alternate strips issuing from the cutting rolls are divergently separated and respectively led to and wound by vand upon said respective mandrels, a spindle to carry each mandrel, means to rotatably support one end of each spindle, a releasably displaceable bearing support to normally journal the opposite free end of each spindle, and transmission means for each spindle likewise deriving power from said clutch controlled shaft, each spindle transmission means including compensating frictional slip clutch means.

3. In a sheet material slitting and winding mechanism, a slitting head having a plurality of sets of optionally usable cutting rolls disposed in vertically and horizontally spaced plane relation,

the slitting knives of which are respectively spaced to produce different strip widths, each cutting roll set having actuating gearing, a power transmission shaft and drive gear common to both cutting roll sets, and manipulatable power transmission shift means having an idler gear in continuous mesh with said drive gear, said shift means being movable to operatively engage its idler gear with the actuating gearing of a selected cutting roll set for transmission of operating power thereto.

4. In a sheet material slitting and winding mechanism, a slitting head having a plurality of sets of optionally usable cutting rolls disposed in vertically and horizontally spaced plane relation, the slitting knives of which are respectively spaced to produce different strip widths, each cutting roll set having actuating gearing, a power transmission shaft and drive gear common to both cutting roll sets, manipulatable power transmission shift means having an-idler gear in continuous mesh with said drive gear, said shift means being movable to operatively engage its idler gear with the actuating Vgearing of a selected cutting roll set for transmission of operating power thereto, and pairs of sheet material guide rollers mounted respectively adjacent the sheet material receiving and discharging sides of each cutting roll set.

5. In a sheet material slitting and winding mechanism, a slitting head having a plurality of sets of optionally usable cutting rolls disposed in vertically and horizontally spaced plane relation, the slitting knives of which are respectively spaced to produce different strip widths, each cutting roll set having actuating gearing, a power transmission shaft and drive gear common to both cutting roll sets, manipulatable powervtransmission shift means pivoted to turn about the axis of said transmission shaft, said shift means having an idler gear in continuous mesh with said drive gear, said shift means being movable to operatively engage its idler gear with the actuating gearing of a selected cutting roll set for transmission of operating power thereto, and adjustable means to limit shifting movementsA of said shift means. Y

6. In a sheet material slitting and winding mechanism, a slitting head having a plurality of sets of optionally usable cutting rolls disposed in vertically and horizontally spaced plane relation, the slitting knives of which are respectively spaced to produce different strip widths, each cutting roll set having actuating gearing, a power transmission shaft and drive gear common to transmission of operating power thereto, adjustable means to limit shifting movements of said shift means, and pairs of sheet material guide rollers mounted respectively adjacent the sheet material receiving and discharging sides of each cutting roll set.

PETER VAN NORDE.

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