US1788564A - Rewinding device - Google Patents

Description

Jan. 13, 1931. T. DANIEL REWINDING DEVICE INVENTOR Thomas LDan-xl,

ATTORNEY Jan. 13, 1931. T. I .ADANIEL REWINDING DEVICE Jan. 13, 1931, T. L. DANIEL 1,788,564

REWINDING DEVICE y Filed Sept. 5, 1925 5 Sheets-Sheet 3 INVENTOR rlomou.. ,'Dcmiei,

ATTORN EY lli:

Patented Jano 13, 19.31

igsasfsi UNITED siAiEsI PATENTv oFFicE THOMAS L. DANIEL,v 0E ATLANTA, GEoEGiA, AssioNoE 'ro` THE GOODYEAR TIEE S RUBBER COMPANY, 0E AKnoN,foHio, A coEroEATioN 0E o-iiio y .EEWINDING DEVICE Application iileiSeptember 3, 1925. Serial No. 54,229.

My invention relates Vto 'machines for manipulating rolls of sheet material, 'and it is particularly directed to machinesof the above designated character, which arel adapted to unwind-rolls of lined material having adhesive properties. y A

The object of myl invention is 4to provide a machine which will continuously stripV and rewind the liner fromrolls of rubber-V ized fabric.

By reason of its adhesiveproperties, a

fabric which isimpregnated withV uncured rubber cannot be wound in roll form without inserting a material having a relatively iioiieadhesive properties betweenl adjacent convolutions. For the purpose, duck isuniversally employed. However, have found that the fibers thereof become firmly embedded in the rubber and it is often extremely difficult to free the rubberized fabric of the inserted material.,

According to invention, have provided a machine having shaftsadapted to rotate rolls of stock, each shaftlbeing provided with a retarding device, such4 for example as VVa brake appliance; Power driven shafts, not unlike those which su'p'-V v' port the lined stock roll, 'but providedwith tensioning devices,wind the lining material as it is strippedfromrtherubberized fabric.

I have likewisel provided several shaftsrto deliver the. tacky fabric sheet while under tension, thus obviating any danger of wrinkles or folds. v

'A better understanding kof my invention may be had by referring. to the drawings, in which: l

Fig. l is aplan view of amachine,'brolren through the middle portion, constructed in accordance withV the principles of my invention: e l e Fig. 21's an elevational view of onevside of the machine embodying the source* of` power a calender. After the material is so proc- 7 wound up on a hollow metallic cylinder' 1. .A stee'lirod' 2, whichv is coaxial with the Fig: Sis also an elevational view' of the inachine and showingtheside opposite'to wise on a larger scale.

In-its essentials, the machine 'consi-stsof means for supporting aV lined stock roll of rubberized fabric which operates in con- .junction with similarV means foi-winding up the'liner. As the roll of fabric is unwound, it is freed of the liner andthe rubberized fabric is subsequently conductedunder tension about a. plurality of i'ollsfto the vnext succeeding. step in tlieprocess of manufac-y ture. The device illustrated is adapted for continuousv performance in that-it is provided with two sets of stock rolls and liner supports Thus, while oneY roll is being unwound and the liner rewound, the other unit may. be replenished and held in readinessfor later utilization.` Obviously, it will be unnecessary to describe bothr units, inaslniuch as their construction is identical.

It is standard practice to impregnate both cord and woven fabric with plastic compositions by passing the textile material through essed, it is arranged in superimposed alignnieiitvwith a sheet of non-adhesive material commonly known as liner` and subsequently cylinder, extends beyond either end thereof and supports ,the cylinder and. fabric jwound thereon., Such rods are usually of rectangular crossfsection and fit openings of slightly ngreater dimension at either end of the cylinder. Inthis way,I it is possible tov reduce the numberof supporting rods and at thesame time the rollsuffers no distortion.

The Lpresent improvement provdesfor a 90 Y ing.

suitable base 10 and two vertically disposed frame members 11 and 12 held in parallel alignment byseveral spacing bars 13. The frame members support a plurality of standards, or brackets, 14 in Twhich are mounted stub shafts 15 that are adapted to retain the roll laxles 2. Each shaft 15 eX- tends a short distancebeyond its journal andv is there provided with a deep keyivay 17 in Which the supporting axle 2 may be` inserted. A collar member 18, circumjacent Witheach shaft 15, but in slidable relation therewith, has a lug 19 integral with its in- Vner periphery. The lug is disposed in the keyvvay in which Athe axle 2,` supporting the roll 1, is inserted, and maintains the 'latter in operative relation. Alatch 21 is pivotally retained in a slot inthe side of each Vstub shaft by means of a pin 22. A spring 23 is imbedded in the Wall of the slot vto force the latch into engagement with the collar 18 and maintain the` collar in Va 'fixed position on the shaft.

Each of the provided with a retarding device which comprises a flanged pulley 26 keyed to the shaft, and an adjustabley brake band appliance 29. One end of the band is supported by a short shaft 28V which is connected rigidly to the bracket 14. The other end is joined to a threaded pin'k 31 that passes through an opening in the shaft 28. The band is tensioned by rotating, in the appropriate directi ai, a hand Wheel 30 which rests against the shaft and is screw-threaded upon the pin 3l. f

The rewind mechanism `is actuated through a clutch device illustrated in Fig. 4. It includes-a burr 33 Which is screwed upon the end of a stub shaft 32, and is in engagement with lone race ring 34 of a ball bear- The other race ring 35 rests against a shoulder portion of a threaded sleeve 3G which is loosely mounted on the shaft. The

sleeve is held stationary by a stay Vbar 37 Which interconnects a similar member of another unit.A ln addition, the` second race ring 35 engages a Collar 38, which is threaded upon Y cone 1nember42 which is keyed to the shaft 325. collar 44 which .rotates freelyabouttlie shaft.` It is engaged on bothsides by similar friction cones, one of Vivhichhas alreadybeenreferred'to, the other being indicated at 45, both of the cones vbeingfaced with friction materia-h It Will be noted that as the hand Wheel 39 is rotated, thesleeve niember Will be. forced in thedirection of the sprocket Wheel. The resultant thrust'vvill vary Witlrthe force applied at the Wheel.

roll supporting -shafts 15 is;

ine sleeve 36 and is Vrigidly joined to a hand Wheel 3 9. The sleeve member 36 is likewise in engagement with afrace vriiiglO'of a sec-V ond ball bearing, Whose complementaryz race ring 41 rests firmly against a friction'v A; sprocket Wheel 43. is secured Vto av In this Way, it is possible to control the torque exerted by the Wind-up mechanism. If the hand Wheel be rotated in reverse direction, the friction between the cone members and the sprocket VWheel isreduced and the torque on the Wind-'up mechanism will overcome the resistance offered by the cone clutch. lt 4Will be observed that as the roll of liner increases in diameter, its speed of rotation must decrease in order to profvide for approximately constant linear movement of theliner. The tension crevice permits a decrease inthe speed of rotation of theliner roll inv-that it permits'slippage betiveenthey sprocket 42' and cones 43' and 4. Since-the .retarding kdevice 26 is adjustable to exert a' greater resisting force than the pull exerted bythe Wind-up mechanism upon the liner, it Will be apparent that ra'slip'page in:` the rotary movement of the liner will occur before the frictional resistance of the retarding device can be overcome by the Wind-up mechanism to increase thelinear speed of the fabric. -'Even though slippage occurs, the torque of the Wind-up mechanism after adjustment Y remains approximately constant. It is apparent therefore that the adjustable tensioning device and retarding device have a particular coaction relatively and With the associated parts of themachine.v l

Power is transmitted-to the tension devices through the agency of a heavy chain4 V47 which engages the sprockets 43 and also er 52 and drives the upper roller 53 throughV a chain connection and cooperating sprocket Wheel 56a. It is to be noted that theffriction rollers' are merely hollow steelcylinders and may have either a smooth or corrugated surface. I have experienced no difliculty .in

lsecuring suii'icient traction between the fabricand rollers, however, by'employing an idler roller 57, supported byY brackets58 which are bolted to thefeiid members ofL theV frame, whereby it -is Vpossible to secure va greater surface of contact. I prefer to have this roll corrugated and have found that a spiral or helical design is satisfactory. f

The source ofpovver,ra variable speed motor 60is provided with a pinion Which meshes vvithY agear 61. This gear, in turn, is keyed to a shaft 62, uponwhich are freely ieu lll)

Lassitermounted gears 63 and 64, meshing respectively with complementary gears- 65,.'and 66, both of which are keyed to ashaft 71. The freely mounted. vgears 63 and @el are actuated by a double actingcatch clutch 67,

which is operated by a hand lever 68. The

clutch consists of a collar member 69, lreyed to the shaft and adapted to move parallel thereto. Lugs 70 which are` integral with the collar are adaptedV to enga-ge similarv means urovided on the Oears. The uowei l b l is transmitted from the shaft`62 through the Y clutch 67 to either of the freely Vdisposedl gears which the clutch engagesand thenceV In operating my machine, I insert the sup-` porting axle 2 of a stock roll of lined fabric 3 into the lreyways 17 of the complementary stub shafts V15. The collar member 18 'is then drawn over the inserted portion lof the axle, whereupon the latch 21 automatically engages the collar and locks theaxle2in opera# tive position. A portion of the free liner is then wrapped about a cylinder which has been inserted into the adjacent liner' windupshown at s. subsequently threaded through the machine by passing it under the idler roller 57, over the middle friction roller 52, beneath the lower roller 51 and over theV top roller 53, as illustrated by the dotted line in Fig. 2. rlhe motor is then started and motion is transmitted from the pinion on the motor shaft through the large gear 61 to the shaft 62, thence to the shaft 71 optionally by means of the gear 63 or 64, according to the setting of the double clutch 67 on the shaft 62. YThe middle fabric feeding roller 52 is then actuated through the engagement. of the clutch 74 with the freely rotating gear which has received motion through its coin responding gear on the shaft 71. The tensioning device is then adjusted to secure the necessary torque to overcome the adhesion between the fabric and liner, and a speed of operation is selected in conformity with the rate of consumption. rlhis adjustment Amay be secured by employingthe proper gear ratio, as provided by the catch clutch 67 to o Jerate the device through either the aV y an ,l

gear 6o or the gear 66, or by suitable rheo static control of the energizing circuit of v the motor.

In order that the fabric will at all times be under tension, rollers'52, 51 and' Vmay have a progressively greater diameter or` each may be rotated at a slightly greater speed than the one preceding. The brake device is set in order to overcome any premature unwinding that results from start-` Thel rubberized fabric` isclaims.

ing.` the machine too abruptly. It should noitbegset so, tightly however as to consume an. appreciable amount of power. Often it is entirely unnecessary,l when the rate ofy the consumption; is reasonably uniform.

`Aftera stock roll has been unwound completely, vtlieptension ydevice yis released. In the ineantimevthe `other lunit has beenv placed in readiness byin'sertinga newsfeek roll 3 and winding ay small portion of the liner about one of theV cylinders 1. The free end of the fabricis subsequently stitched to the end of the previous roll, after which the unwinding operation may be resumed by merely connecting the` tension rollers 51,52 and 58 to the source of power and adjusting the clutch '.windaip. wound liner, the stub shafts 15 are positioned-so as to have their keyways17 directed vertically upward. The latch 2l vis then pressed inwardly, the collar 18 is caused to,v recede .and the liner along with its cylinder 1 and aXle 2 are hoisted as a unit. In the same way, the empty cylinder may be withdrawn. When inserting and removing rolls an overhead crane may be employed advantageously inasmuchas the total weight often aggregates several hundred pounds.

It will be vnoted that I have shown no guards for thegears or chains. These have they are nevertheless desirable.

To remove the re- Although I have disclosed but a single,`A

embodiment of my invention, it will be realized that the principles set forth may be subjected to kmany variations without de-` parting from the scope thereof. I desire therefore that only such limitations shall be imposed as are consistent with the appended ally therewith, and an adjustable collar surrounding the journaled memberV provided with a latch member for maintaining the ioo collar-in position to secure the roll supports y within the grooves. i j

. 2.*Apower driven machine for feeding rubberized fabricrolled in a liner to a bias Vcutting machine 'comprising means for sup- 'rubberized fabric rolled in a liner to a bias cutting machine comprising means for sup-V porting a' plurality of stock rolls, means for releesably supportmg a plurahty vof rollers v for rewmcllng thelmer, means for conducty ing the fabric to succeeding steps in its pro'- cess of manufacture, a" common means for clrlvlng the rewmdlng rollers, and 'a'dJustable, releasable connecting means between lee each linerv roller and the driving means.

In Witness whereof, AI hav'ejlxereunto signed my name. Y Y Y,

` Y THOMAS L.JDANIEL.

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