US2622817A - Winding mechanism - Google Patents

Description

Dec. 23, 1952 s. COHN ETAL WINDING MECHANISM 4 Sheets-Sheet 1.

Filed Dec. 13, 1945 INVENTOR (2 1 0 mp. Wm AW S. COHN ET AL WINDING MECHANISM Dec. 23, 1952 4 Sheets-Sheet 2 Filed Dec. 15,, 1945 R 5 mm 6 .2% V N u %A w S L B 4 Sheets-Sheet 3 Dec. 23, 1952 s. COHN ET AL WINDING MECHANISM Filed Dec. 13, 1945 i I R km hm WHHHH I lNVENTOR Y Jzrmue/ (L4,,

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Decn23, 1952 s. coHN ET AL WINDING MECHANISM 4 Sheets-Sheet 4 Filed Qec. 15, 1945 INVENTOR 5.101.12/ e64 Jd t: 6. file/fen BY ATTORNEYS Patented Dec. 23, 1952 UNITED? STATES PATENT OFFICE NewYork' Application fi'ec'e'niber 13, 19 15;v Serial No. 6341701 1; This invention relates to an apparatus" for winding lengths of fabric and" forc'o'untin'g the yardage for each length aswound-andmorepav ticularly to improvements in-- such apparatus whereby its functions are performedsatisfactorily andaccura telyi In handling and processing oertainfabrics;;it isthe usual practice to-stitchsuccessive lengths together end" to end. Thenumber of-lengthsso assembled will vary,v but is sufficient to make what is commonly-termed a batch or a"bea'mi" The treatment is usually completed by subjecting the material to a finishing operation whichmay include for example steaming an'd -pressingwith heatedrollsr Itiisne'cessary: then to sever the several lengths or: pieces of fabric atthe seamswhere' they are joined and to wind each piece separately on' a h0l-- low cardboard roll orother suitable support. The

yardage must'be accurately determined for each piece as it is: wound. The machinesheretoforeavailable: for these purposes-havenot-be'en wholly satisfactory:

It. is the object of the invention-to -provide-a simple. and. satisfactory apparatus to facilitate the: winding. of lengths of fabric as they arese'v ered fromzthebatch or beam.

Another objector-the invention is the provision of. effective means: ensuring ac-curat'emeasurementof: e'ach length of fabrickasi it is woun'df Q'therzobject's and: advantages of the invention" wiil beapparent: asiit i'sibetter understood by ref erence: to: the following specification and theamcompanying drawings, in which:

Fig. 1 is a longitu-dinal section through-themachine embodying the 'inv'entiong Fig. 2. is ausimilar view indicating. the-method ofoperationiofithe machine;-

Fig; 3"is:a1 detail. in: elevation of the mechanis'mfor countingthe yardage;

Fig. 4 is an enlarged elevation-lotthe-means for severingi't'he length of. fabric" at these'am';

Fig. 5. is: an enlargedseotional View ofa'-mo'di"-- fied term of theapparatu's;- and *Fig. 6 is a detail in elevation illhstratihg'ia part" of the apparatus as shown in Fig. 5.

Referring .toztherdrawing; 5-indicates cheer the side: :plates which; l together with the plate 1 on=-the= opposite si'dealof the" machine; formsthe frame thereof; shaft? 6 jo'urnaled in' the arse and'zcarrieszairoilil wnichusadapted to'be Totated by anyfsuitablea driving mechanism such =as a' mo' tor- (not shown n The mo'tof or" other" driving-r mean'siis-xadapted tooperate the rell 'l at; for ex ample; the" finishing speed of thes fabric; prefer ably-"about. forty yards" per minute, and also ate cutoff speed of approximately five yards per minute; The precise-speed is not important ex ceptthat the: cut-0ff'speed should be sufficient 1ylow to permit the" operations as hereinafter (1e scribed. The means for thus controlling the speed of operation of the" machine is-well known in-the art "and forms'--no part ofithepresent-invenhon,

The fabri'o 8-,-havin'g a seam 9 therein;.is d'eliv= ered from the finishing apparatus" (not shown) througha' pa'ir-of roll's l O'to the roll I and'iis there engaged by and wound upon a hollow cardbdard core ll supported onamandrel rl; As the ma-te rialis wound; it 'forms a r-oll- I 3-, the periphery of which engages theperi'phe'ry of the roll T, thereby effecting the winding'operation.

In: order to permit the mandrel 12 to rise"- as the r011 l3 increases in diameter, guide bars H are sec u'red to the: plates liandnearthe bottom thereof are supplemented bybars I 5' likewise-secured to the plates 5" and slightly spaced there-- from: tospermitsth'e operation of latches I (i -pivoted at I]: on thelplatesi. Thelatohes -l'fi permiti an extra mandrel. 26 to move-intd position: for? pe=- 1 ways 25 secured .to the. -plates 5 andto suppontithei extra mandrelJZB. whilethe roll I 3'isbei'n g, formed When the operator observes the seam 9 passing: the rollers lfl he'zimmediately reduces the speed of: the; apparatus. by proper: manipulation of the controlzmechanism to? 'c-uteoff speed, thus caus ingz-the roll 21 to: travelv at -a' peripherarspeedsuch that the operatormay closely fol1ow'the" seamg9- as itadvancesand perform the 'necessary sever-- ingioperation: To effect this--operation; theopieratorgrasps the ma'n'drel' I 2, draws ittow-ardshim" and thereby moves the frame consis-tihgof the members: I 9 3 about the pivots 20 to the position indicated in Fig: 2' of the drawing. Thereupon theroll 13 advances until?- the mandrel l2 en ases depressionsii in brackets 28 which are se cured tothemates5i Themandrefthusl'reieases the members I9 which immediately return: to? normal position as 'indicated' iiiFig; I underthe ihfiuence of' 'thesprings -21"; Atithe'sametifiie; the spare mandrel 26 has seen released and rolls? down the guideways 25 to engage the roll I. The seam 9 continues to advance until it is in the position indicated in Fig. 2. Upon slight further advance, it reaches the position where the severing mechanism should be operated to sever the piece from the beam. The operator takes up any slack in the fabric by turning the roll I3 manually.

The severing mechanism is mounted on the brackets 28 and is substantially the mechanism shown in the patent to Samuel Cohn, No. 1,745,476. It consists of channel members 29 extending transversely of the machine and a carriage supported on rollers 39 and 3| which engage the channel members. As shown in Fig. 4, the carriage carries a blade 32 which is adapted to engage the fabric as the latter is held against the channel members 29 by the rollers 39 and stretched across the upstanding flanges 32 of the channel members. The carriage is operated by grasping a transverse handle 33 at the top of the carriage and moving the carriage quickly across the width of the fabric. The severance should be effected close to the seam 9. The free end of the length of fabric on the already formed roll I3 drops downwardly, and the operator, quickly grasping the other free end near the seam 9,

tosses it over the spare mandrel 26 which, at the moment, is rotating in engagement with the roll I. Thereupon the operator increases the speed of the apparatus, and the winding of a new length commences. The finished roll I3 may be removed from the brackets 28 in preparation for delivery thereto of a new roll of fabric.

In order that the measurement of each length of fabric may be accomplished automatically, a swinging member 34 is pivotally mounted at 35 on the plate 5 at one side of the'machine. It has an upstanding arm 36 which is connected by a spring 31 to a bracket 38 which is secured to the plate 5. Thespring affords a toggle action, forcing the member 34 on one side or the other to the limit of its movement whenever the upper end of the arm '36 passes the center. The lateral arms 39 carry yardage counting devices 49. The details of, these devices form no part of the invention,

since theyare well known in the art. Each carriesa pinion M, and the pinions are adapted to engage alternately with a gear 42 mounted on a stub shaft 43 supported by the plate 5. The gear 42 carries a sprocket 44 which is connected by a chain 45 to a sprocket 46 on the shaft 6. Thus the gear 42 is rotated at a speed corresponding to the travel of the fabric 8 past the roll I, and the yardage of each piece is .recorded by the yardage counter which at the "time is. actuated by the gear 42.

As each roll I3 travels onto the bracket 28, it depresses momentarily a lever 41 pivoted at 48 on the bracket and having an end 49 which projects upwardly in the path of the frame I9. The end of the lever 47 is connected to a member 50 by means of a pin 5| and slot 52. The member 59 is slotted at 53 to engage pins 54 on the bracket 38 and is adapted to be moved upwardly as the end 49 of the lever 41 is depressed. The upper end of the member 59 is beveled at 55 to engage a notch 56 on the member 34. Thus, as the member 59 is forced upwardly, it engages the notch 56 and forces the member 34 to one side or the other past the center, so that the spring 31 causes completion of the movement and engagement of one of the pinions 4| with the gear 42. Hence, as each roll I3 is completed and severed, the measurement of the yardage therein is completed and the other yardage counter is moved into position to commence the count on the next roll. The operator then reads the yardage from the counter and resets the mechanism to zero for the next successive count. The operator is thus able to record accurately the yardage of each completed roll I3 as it is formed and severed from the beam.

The above-described yardage-counting apparatus is fully described and claimed in our copending application Serial No. 286,396, filed May 6, 1952.

In winding certain types of fabrics and particularly knitted fabrics, it is not possible in ordinary apparatus to obtain a roll in which both ends have the same diameter. This difficulty is known in the trade as taper or flowerpot wind-up."

This difliculty can be avoided in the present apparatus by providing the flanges I8 as shown in Fig. 6 with rack teeth 51. With the apparatus as so modified, it is necessary to use a. different type of mandrel in place of the simple mandrel I2. This structure is clearly shown in Fig. 5, in which the plates 5' support bars I4 and extensions I5. The flanges I8 carry the rack teeth 51 as shown.

The mandrel consists of a rod 58 carrying pinions 58' secured thereto at opposite ends and adapted to engage the rack teeth 51. A hollow tube 59 is supported on the rod 58 by ball bearings 69. Similar bearings 6I are mounted on the ends of the rod 58 and dust caps 62 are provided at the ends. The usual hollow pasteboard tube 63 is supported on the hollow tube 59 and the roll I3 is formed thereon as in the preceding description of the invention.

With the structure as shown in Fig. 5, any increase in the diametrical dimension of the roll I 3' at either end thereof will cause the pinion 58' at that end to ride upwardly in the rack 51, thus causing the rod 58 to turn. Since the teeth of the racks 57 are in exact alignment, the turning movement of the rod 58 will necessarily lift the opposite end of the rod to the same extent, thus continuously compensating any variation in the diametrical dimensions at the opposite ends of the roll I3. Hence it is impossible for the finished roll to be tapered. In normal operation, the hollow tube 59 rotates freely about the rod 58 and hence the roll I3 may be formed as the material 8 is fed to the machine. It is to be understood that with many types of material the rack and pinion construction as shown in Figs. 5 and 6 is unnecessary, since rolls of uniform diametrical dimensions can be produced readily without this improvement.

The apparatus as described permits the rapid and satisfactory winding of lengths of fabric which may be severed from the beam as each length is wound. The yardage is determined accurately as the winding proceeds, thus permitting the obtaining of satisfactory measurements of the product as it is completed.

Various changes may be made in the form, arrangement and construction of the apparatus without departing from the invention or sacrificing the advantages thereof.

We claim:

1. In a fabric winding mechanism, a frame, a driven roll in the frame, a mandrel adapted initially to engage the driven roll and to support a roll of fabric as it is formed, guideways for the mandrel each having stationary portions and substantially upright movable portions, the movable portions being pivoted below their centers of gravity on the frame and movable to release the roll of fabric, and resilient means to normally hold the movable portions of the guideways in upright position and to return them to upright position after they have been moved to release the roll of fabric.

2. A fabric winding mechanism as set forth in claim 1 which includes means carried by the movable portions of the guideways to hold another mandrel in inoperative position until said portions of the guideways are moved from normal upright position.

3. A fabric winding mechanism according to claim 1 which includes latches associated with the guideways to hold the mandrel in operative position.

4. A fabric winding mechanism as set forth in claim 1 which includes means for severing the fabric positioned to engage the fabric when the movable portions of the guideways have been turned about their pivots and the roll of fabric has been released.

5. A fabric winding mechanism according to claim 1 which includes means carried. by the movable portions of the guideways to hold another mandrel in inoperative position until said portions of the guideways are moved from normal upright position, and latches associated with the guideways to hold the mandrel in operative position.

6. A fabric winding mechanism according to claim 1 which includes means carried by the movable portions of the guideways to hold another mandrel in inoperative position until said portions of the guideways are moved from normal upright position, and means for severing the fabric positioned to engage the fabric when the movable portions of the guideways have been turned about their pivots and the roll of fabric has been released.

7. A fabric winding mechanism according to claim 1 which includes means carried by the movable portions of the guideways to hold another mandrel in inoperative position until said portions of the guideways are moved from normal upright position, latches associated with the guidevvays to hold the mandrel in operative position, and means for severing the fabric positioned to engage the fabric when the movable portions of the guideways have been turned about their pivots and the roll of fabric has been released.

SAMUEL COHN. JULES G. WALTER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS

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