US2265498A - Apparatus for winding and cutting web material - Google Patents

Description

- 9 1- L. .G. STANCLIFF ETAL I 6 8:

APPARATUS FOR WINDING AND CUTTING WEB MATERIAL Filed May 17, 1959 2 Sheets-Sheet l a m 5 M [3' "1 3 w (a g l I 41 w Q 3* A N&%

N .ZIou/s GI Sfancflf ZUi/fz Z0. Wagner EJMYMW s,19'41- L. G. STANCUFF Em 2,265,498

APPARATUS FOR WINDING AND CUT'IING. WEB MATERIAL Filed May 17, 1939 2 Sheets-Sheet 2 Patented Dec. 9, 1941 APPARATUS FOR WINDING AND CUTTING WEB MATERIAL Louis G. Stancliff, Asheville, N..C., and Wiltz W.

Wagner, New Orleans, La.; said Stancliif assignor to said W'agner Application May 1'7, 1939, Serial No. 274,298

'7 Claims.

This invention relates to apparatus for winding and: cutting webmaterial and more particularly to such apparatus constructed or equipped for securing web-material to a winding element, for example, a reel.

In- United .States Letters Patent No. 2,105,707 issued January 18 1938. to. Louis G. Stancliif, there is disclosed-a device for winding and cutting Web material which, in its general nature, comprises a rotatablewinding reel having a plurality of spaced armsand a cutting knife mounted for longitudinal movements on one of the arms and with itscutting. edge projecting beyond the surface of that arm.

One. object. ofv the present invention isto provide mechanism such as disclosed in, the aforesaid patent. or mechanism ofthe same general,

class withmeans for .quickly and easily attaching or connecting therwebmaterial to the reel. or other winding. device before the winding operation is. begun.

Another. objectv is to provide such an arrangement including a vweb-grasper clip or clips positioned to engagethe side edge portion or portions ofweb material to be Wound, the ,clip or clips being ,mounted. for sliding and rocking movements to facilitate their being. moved to position for engaging the web.

A further object isto provide a reel of the spaced arm type and including means for adjustably and securely maintaining the arms in parallel spaced relation.

Other objects will become apparent from a reading of the following detailed description, the appended claims, and the accompanying drawings, in which:

Fig. l is a. perspective view of apparatus embodying the invention showing the parts in the positions occupied just prior to starting the winding operation;

Fig. 2 is a top plan view of a portion of the winding apparatus shown in Fig. 1;

Fig, 3 is a fragmentary elevation looking in the direction of the arrows 33 in Fig. 2 and drawn on an enlarged scale;

Fig. 4 is a section taken on the line 4-4 of Fig- 2; and

Fig. 5 is a fragmentary perspective view illustrating. manipulation of the apparatus and web just prior to operation of a cutting knife and preparatory to beginning of another winding operation.

For the purpose of illustration there is shown apparatus supported on a bracket A and adapted to wind-web material from a roll I rotatably mounted'on the stub shaft 2 carried by the bracket A. The web material is shown as being transparent, such, for example, as Cellophane, but it will be understood that the apparatus may be used for winding, and/or cutting other Web material. The unwound end portion of the web is connected in a manner to. be described later to a winding device or reel generally designated B, mounted forrotationon a stub shaft 3 carried by-the bracket A. The arrangement is such that, when it is desired to cut off a plurality of pieces of web material, the reel is rotated until a plurality, of superposed layers of web material has been. wound on the reel after which the web layers are severed along a common line of cutting. In the illustrated embodiment the reel comprises a radially extending member G journaled on the stub shaft 3 and slotted as at 55 to receive in adjusted positions spaced arms 6 and 1. One arm 6 comprises a tubular member which is formed with a longitudinally extending slot 8. An operating member 9 is positioned for longitudinal Jmovements within the arm 6 and carries a knife ill which extendsthrough the slot 8 and projects beyond the surface of the arm. Preferably, the operating member is provided with a handle I I.

In operation, the web material is secured to the arm 6 and the handle H is grasped and the reel rotated a number of turns depending upon the Tnumber of lengths of web material desired to be cut. When the desired length of material has been wound on the reel, the handle I! is pulled outwardly to run the knife through the material to cut the web into a plurality of sheets. The apparatus thus far described is not claimed per se herein, it being disclosed and claimed in the patent to Stancliff No. 2,105,707, referred to above. i

In accordance with the present invention means are provided for-quickly and easily attaching the web to the arm 6 preparatory to winding. In the form shown, a web holder generally designated i2 is mounted on the arm .6 adjacent the radially extending reel part 4. The web holder comprises a carrier l3 mounted for sliding and rocking movements on the tubular arm. 6, the carrier having a portion H! (see Fig. 4) embracing the tubular arm 6 and having an offset portion i5 positioned to clear the knife It when the latter is moved relative to the arm 6 and when the carrier 13 is moved along the arm. The carrier serves to mount a web-grasper clip comprising a jaw I6 fixed with respect to the carrier and a movable jaw ll pivoted on the carrier as at I8,

: aspring; I9 serving; to urgethe jaw IT to closed,

position on the jaw l6 and a finger piece 29 being provided for opening the jaw I! when desired. The clip jaws are so positioned as to face inwardly toward the web engaging portion of the reel, i. e., the portion of the reel lying between the opposite side edges of the web. It is desirable to limit the rocking and sliding movement of the carrier on the arm 5. To this end a rod 2! is mounted in spaced relation to be adjacent the arm 6 by lugs 2222. The carrier I3 is formed with stop portions 23 and 24 (see Fig. l) which cooperate with the rod 2| in order to limit rocking movement of the carrier so as to prevent the armembracing portion hi thereof from overlapping the knife slot 8. A stop portion 25 on the car-' rier is arranged to cooperate with a stop collar 26 held in adjusted position on the rod 21 by a set screw, cooperation of the stops 25 and 26 limiting movement of the carrier toward the center of the arm 5.

It is desirable to provide a similar web holder at the other end of the rod 6. Such a web holder I2 is shown in Figs. 1 and 2. It is of the same construction as the web holder i2 previously described with the exception that the parts and arrangement of parts are reversed as to right and left hand, as compared to the web holder l2. Therefore, no detailed description of the web holder I2 is necessary but it is pointed out that the'parts thereof are designated by the same reference characters as are used to designate corr sponding parts of the web holder I 2 with the exception that the reference characters designating parts of the web holder [2' are primed. There also may be provided a stop collar 26' for limiting sliding movement of the web holder [2 along the rod 6. V

Also in accordance with the present invention means are provided for preventing the outer ends of the arms 6 and 1 from being drawn together by the web as the latter is wound upon the reel. For accomplishing this end, a connecting bar 21 is secured to the lug 22 at the outer end of the arm 6 and extends radially to and through the outer end of the arm I being'held in adjusted position relative to the arm I by means of a set screw 28.

Operation When it is desired to wind the web on the reel B the web holders l2 and I2 are moved away from the middleof the arm 6 and respectively toward the adjacent ends of the arm so that the leading end of the web may be disposed slightly overlapping the arm 6 and between the web holders l2 and I2. The web holders are then both moved inwardly with their movable jaws open so as to effect insertion of the side edge portions of the web between the respective pairs of jaws and the movable jaws then released so as to clamp and hold the web, thus securing the web to the arm 6. The reel is then rotated in the manner described until the desired amount of web material has been wound. Before severing the wound layers of the web from the web being wound on the roll I, the web-grasper clips are released and the holders I2 and I2 are slid outwardly away from the side edge portions of the web. Then the top layer of web material at one side of the reel is raised up slightly as indicated in Fig. and the adjacent web holder 82 is moved in toward the web so as to grasp the top layer. The other clip is then moved in to grasp the top layer at the-other side of the web and the operating member 9 is drawn through the tubular arm 6 to cause the knife I 6 to sever the several web layers wound on the reel. The apparatus is then ready for winding additional web material, it being noted that it is not necessary to align and position the Web with respect to the reel after the operation of the knife to cut the layers into a plurality of pieces of weld material. The web holders, although mounted for rotation with the reel, are rockable about an axis parallel to the axis of reel rotation and are slidable in a direction parallel to the axis of rotation so that the web holders can easily be moved to positions for efiecting engagement and disengagement of the clip jaws with the web.

The apparatus disclosed herein embodies the 1 invention in a practical and its now preferred form, but it will be "understood that various changes may be made in the construction and arrangement of the parts without departing from the invention as defined in the claims.

We claim:

1. In apparatus for winding web material; a rotatable winding device; a web-grasping clip comprising gripping jaws movable relatively to 'i each other for gripping a web therebetween;

means mounting said clip on said device to rotate therewith, to move thereon parallel to the axis of rotation, and for rocking movement about an axis parallel with and eccentric to the axis of rotation; and stop means for limiting the rocking movement of said clip-mounting means relative to said winding device.

In apparatus for winding and cutting web material, a rotatable winding reel; 'a cutting knir'e; means mounting the cutting knife within a part of the reel and with its cutting edge projecting beyond a surface thereof; means for moving the cutting knife in a direction parallel to the axis of rotation; a web grasper clip; and

' means mounting said web-grasper clip for rotation with the reel, for movement along the reel parallel to its axis of rotation, and for limited rocking movement about an axi eccentric to and parallel with the axis of rotation.

3. In apparatus for winding and cutting web material, a rotatable winding reel comprising a plurality of spaced arms; a cutting knife carried by one of said arms with its cutting edge projecting beyond the surface of the arm; means for moving the knife in the direction of extension of said arm to sever material wound on the reel; a Web holder clip; and means mounting the clip on said arm for longitudinal movements with respect thereto, said mounting means comprising tubular member disposed with its axis eccentric to and parallel with the reel axis of rotation and including a longitudinal slot; an operating member mounted for longitudinal movements in said tubular member; a, knife carried by said operating member and extending through said slot beyond the surface of said tubular member; a carrier mounted for longitudinal movement with respect to said tubular member and for rotation therewith about the reel axis; and a web holding device supported on the carrier, said carrier slidably engaging said tubular member throughout only a portion of its circumferential extent, whereby said knife may be moved along said tubular member without being obstructed by said carrier. '5. In'apparatus for winding and cutting web material, a rotatable winding reel comprising a tubular member disposed with its axis eccentric to and parallel with the reel axis of rotation and including a longitudinal slot; an operating member mounted for longitudinal movements in said tubular member; a knife carried by said operating member and extending through said slot beyond the surface of said tubular member; a carrier surrounding and being slidable longitudinally on said tubular member and having a portion offset radially from the tubular member to afford clearance for the knife; and a Web-holding device supported on the carrier.

6. In apparatus for Winding and cutting web material, a rotatable winding reel comprising a tubular member disposed with its axis eccentric to and parallel with the reel axis of rotation and including a longitudinal slot; an operating member mounted for longitudinal movements in said tubular member; a knife carried by said operating member and extending through said slot beyond the surface of said tubular member; a carrier partially embracing said tubular member and having a portion engaging the latter for sliding and rocking movements; means for limiting rocking of the carrier to prevent said portion from overlapping said slot; and a web-holder supported on said carrier.

7. In apparatus for winding and cutting web material, a rotatable winding reel comprising a plurality of spaced arms one of which is tubular and is formed with a longitudinal slot; an operating member mounted for sliding movements in said tubular member; a knife carried by said operating member and extending through said slot; a rod carried by the reel in parallelism with and adjacent said tubular member; a carrier partially embracing the tubular member and having a portion slidably engaging the latter for sliding and rocking movements; said carrier having stops adapted to engage said rod for limiting rocking movement of the carrier to prevent the tubular-member-engaging portion thereof from overlapping said slot; a stop collar adjustably secured on said rod and positioned to be engaged by and to limit sliding movement of the carrier on the tubular member; and a web-holder supported on and movable with the carrier.

LOUIS G. STANCLIFF. WILTZ W. WAGNER.

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