US1994638A - Tape handling apparatus - Google Patents

Description

Mrch' 19, 1935. L

J. ETTL TAPE HANDLING APPARATUS Filed June 12, 1931 5 Sheets-Sheet 1 INVENTOR., WM

BY ATTORN YS.

March 19, 1935. ETTL 1,994,638

TAPE HANDLING APPARATUS Fild June 12, 1931 5 Sheets- Sheet 2 IIIIIIIIIIIIIIIIIIIJ IIIllIIIIIIIIIIIIIIIIIIIII IIlll ii Mim PS ATTORNEY Mar ch 19, 1935. Em 1,994,638-

TAPE HANDLING APPARATUS Filed June 12, 1951 s Sheets-Sfie t 3 Z I g INVENTORW BY M24 ATTORNEY Patented Mar. 19, 1935 I 158 94 6 38 "i QFFIQE TAPE HLHNG APPARATUS Joseph Ettl, riain eiaN. .r, assignor to Potdevin Machine Company, Brooklyn, N. Y., a corporation of New York v Application June 12, 1931, Serial No. 543,874 8 Claims. (cl;iota-i2) This invention rel'atesto an improvement in feed rollers '19 and 20 which are mounted. on motor driven machines for dispensing paper tape, shafts 21 and 22, respectively, the shaft. 21 being and has for one of its objects the provision of a mounted in hinged frame members 14', and t machine adapted to feed the tape from a supply shaft 22 in the side'framesl and 2. The bearing roll, cutit off as desired, apply'adhesive to the for the roller 19 is backed by spring 23 so as to 5 severed portion and then to discharge the glued mount this roller resiliently. or pasted tape from the machine." I The paper next goes over the top of a gluing The machine is in part manually operated, that roller 24 which is mounted on a shaft 25 mountis to say, does not measurethe paper and cut the ed in suitable bearings in the frames of the masame 01f after predetermined length has runchine, this roller receiving glue from the roller 10 through the machine. 1 26 which is mounted on shaft 27, in'a gluetank 28.

In the drawings accompanying thisapplica- The driving motor for the machine is desigtion: I h hated 29. Thismotor is provided with a gear 30 Fig. 1 is a view of my improved machine in part meshing with a gear 31 on a shaft 32 carried in sectional front elevation; bearings 33, 34 and 35 along the side of the ma- 15 Fig. 2 is a section substantially on the line 22 Chine a e of Fig. l; The shaft 32 carries a gear 36 meshing with g- 3 is a section substantially on the line 3 3 a gear 37 loose on the shaft l5'of the feed roller 13. of Fig. 1; The shaft 32 also carries'a gear 38 meshing Fig. 4 is a view on the line 4,- -4 of Fig. 3; with a gear 39 on the shaft 22 which carries the 20 Fig. 5 is an elevational view of part of the feed-T0118!v cutting off mechanism; The shaft 32 also carries a gear 40 meshing Fig. 6 is a fragmentary View of the knife m h with a gear 41 011 the shaft which carries the nism; gluing roller 24. 25 Fig. 7 is a detail of certain clutch throw out Pivoted on the frame of the machine is a cutter 25 mechanism; and r bar 42 carrying. a cutter blade 43. The end of Fig. 8 is a detail of the slip clutch mechanism. thi cutter bar ppos i piv 44 has a Spring Referring to the drawings in detail, 1 and 2 45 attached to it, this spring being anchored to a designate the side frames of the machine. The p n 6 fast to the machine frame- The Opposite roll of paper designated 3 i supported on end of the cutter bar 42 is pivotally attached .at 30 bracket 4 mounted in any convenient manner on to a Vertically-movable yoke 43 t0 the real face the machine frame, the tension on the tape b of which, as viewed in Fig. 4, is attached a bracket ing controlled by a pivoted arm 5 which carries a 49 adjllstably held 'p thereon by screws shoe 6 adapted to rest on the periphery of the t bracket having a portion 51 p j ing away roll. The tensioning arm 5 is provided'with a from the a of the member 8- Weight 7 adjustable lengthwise of the arm to vary At its lower end the yoke 48 is cut a y as he pressure on the tape roll 3. To h t shown at 52 to receive a collar 53 mounted on weight in any adjusted position'the same is proa shaft 54, the shaft being mounted in suitable .vided with a pin 8 backed by spring 9, the pin bearings 55 and 56- on the sideof the machine engaging undulations 10 in the upper edge of frame. The shaft 5411318 110 b8 1ll1d6l$t00d BX- 40 the arm. tends parallel to the shaft 32.

The tape, which I shall designate 11, passes The 001131 53 Carries Pi 57 d p t0 from the roll 3 between a pair of feed rollers 12 ease a sh u de 58 providedlcn the inside o the and 13. The rollers are mounted on' shafts 14 out out 52 in the yoke 48, so: that When the Shaft d 15, respectively, the shaft 14 being mounted 54and collar 53 are rotated to the left, as viewed 45 in hinged frame members 14, the shaft. 15 being in Fig. 4, t p '7 W engage the Shoulder 53 mounte'd'in the side frame I and 2 of the machine. and move the yoke 48 downwardly.

The bearings for the shaft 14 are backed by springs The shaft 32 supports a yoke 59 which is adapt- 16 whereby the pinch or nip of the rollers 12 and ed to be rocked on the shaft 32 and which is held 13 on the tape may be regulated, a screw 17 being in the position shown in Fig. 4 by a spring-pressed 50 provided for varyingthe tension in the spring 16. ball 60 engaging the side of the frame 1 of the From the feed rolls l2 and 13 the paper passes machine. This member 59 carries pins6l engagalong the upper face of a stationary cutter meming a collar 62 slidably mounted on the shaft 15 her 13 which will be described in detail later on, .of the feed roller 13 and non-rotatable with re- 55 and from thence passes between another pair. of spect thereto so that as the upper end of the yoke 65 59 is rocked to the right, as viewed in Fig. 4, the collar 62 will he slid along the shaft 15 to bring the lugs 63 into engagement with the clutch lugs 64 on the side of the gear 37. To obtain the rocking of the member 59 a pin 65 is carried by the member 48 and a pin 66 is attached to the yoke 59. These two pins are connected by a spring 68, which is normally under tension, and the pin 66 on downward movement of the member 48 is adapted to be engaged by the extension 51 of the bracket 49 above referred to.

The shaft 15 of the feed roller 13 carries two steel discs 69 and 70 and an intermediate fiber disc 71. The discs 69 and '70 clamp the fiber disc 71 under the action of a spring '72. The disc '71 is provided with an arm '73 to which is attached one end of a spring 74 and the other end of the spring is anchored to any suitable part of the machine frame. The fiber disc 71 is adapted to be moved between the stop pins '75 and '76. The function of this construction will be referred to hereinafter.

The fixed cutter bar 18 which cooperates with the movable cutter 43 is provided with a slot 79 at one end, and with a transverseslot 80 at the opposite end. The slot '79 receives a bushing 81 which hasa depression in its upper face for receiving a screw 82 which passes down through the same and into the block '78 to which the bar is attached. The slot 80 receives a bushing and screw 83. The screw 82 is eccentric to the bushing 81 so that by rotating the bushing the angle of the edge of the bar 18 with respect to the block 78 may be varied. The slot 80 permits the bar 18 to pivot when the cutter '43is operating; The bar is backed by a spring actuated rod 84.

By this mountingof the bar 18 I am able to obtain a shearing action between the fixed and movable cutters without any flexing of either member. 1

The shaft 54 above referred to carries a collar 84 fixed thereto and between this collar and the bearing 56 the shaft is provided with a coil spring 85, one end of this spring being anchored to the collar 84 and the other end to the bearing 56, sothat rotation of the collar 84anti-clockwise, as viewed in Fig. 8, would place the spring 85 under tension. The collar 84 is provided with an operating handle or lever 86 and the outer end of the collar is provided with a cam 87, adaptedto cooperate with a cam 88 pinned to the shaft 54.

In operation the frame portions 14 are swung back to raise the rollers 12 and 19. The tape is pulled off the roll 3 and passed along the top of the lower roller 13. The frame members 14 are then swung down into closed position again as shown in Fig. 2 and latched by latches 91. The motor 29 is then energized to drive the shaft 32 and to effect rotationof gears 36, 38 and40.

As above described the gear 36 meshes with a gear 37 loose on the shaft 15 of the feed roller 13. Consequently while the gear 3'7 is being rotated feed roller 13 is not yet started in operation. The gear 38 meshes with the gear 39 so that the lower feed roller 20 will be driven. The gear is in mesh with the gear 41, as above pointed out, which is on the shaft 25 of the gluing roller 24 and hence the gluing roller will be driven. The shaft 25 on its end opposite the gear 41 carries abroad faced gear 92 which meshes with intermediate gear- 93 driving a gear 94 in mesh with gear 95 on the shaft 27 for the glue roller 26.

96 is a doctor roller resiliently mounted adjacent the'pen'phery of the glue roller 24 and the shaft carrying this doctorroller 96 carries a ear 97 which meshes with the broad faced gear 92. I

above referred to, so that this doctor roller will now be rotating. I

If the hand lever 86 now be depressed the member 48 will be moved downwardly, the shaft 54 being rocked in an anti-clockwise direction, as

viewed in Fig. 4, the pin 57 engaging the shoulder 58 on this member 48. This downward movement 7 of the member 48elfects a pivotingupwardly of the cutter bar 42 against the spring 45. This same downward movement of the member 48 carries the lateral extension 51 on the plate 49 into engagement with the pin 66 thereby pivoting the yoke 59 about the shaft 32, bringing the clutch lugs 63 into engagementwith the lugs 64 on'the side of the rotating gear 3'7. It will be noted that be driven, being geared together, and the paper. Q

will be advanced across the stationary .cutter 18, the knife 43 being in raised position, between the upper and lower feed rollers 19 and 20, now being rotated, and over the face of the gluing roller 24. The paper is lifted from the face of this roller by the members 98. When the required amount'of paper has been run through the lever 86 is further depressed, the cam 87riding up the cam face. on the collar 88 as indicated in' Fig. 8' thereby forc' ing the shaft54 endwise, i. e., to the left, as viewed in Fig. 3, to carry the extension 51 of the plate 49 out of the path of the pin .66. The spring 68'by the movement of the member 48, as hereinbefore mentioned, will be placed under greater tension and consequently when the extension 51 moves out of the path of the pin 66 this spring will restore the yoke 59 to its original position, disconnecting the clutch for the'feed rollers 12and 13.

As soon as the lever 86 is released the spring 85 will restore the lever to its original position and the spring will snap the knife or cutter downwardly to shear the paper. The severed portion will of course be discharged from the machine, the rollers 19 and 20 still being rotated. The action of the spring 85 will carry the cam 8'7 toits original position with respect to the cam 88 so that the parts will be in' position for the next cycle of operation. J

The friction between the fiber disc 71 and the steel plates 69 and '70 due to the spring '72 causes the disc to be rotated until its arm 73 strikes the stop 76, whereupon this friction is overcome by the drive of the feed rollers 12 and 13. As soon as the clutch which constitutes part of the drive for the feed rollers 12 and 13 is disengaged, the spring 74 will reverse the fiber disc'until its arm strikes the stop 75. Thus a slight reverse, rotation of the feed rollers 12 and 13 is effected. The purpose of this is to retract the end of the paper slightly from the cutting station to avoid any turning over of the leading edge of the paper due to the movement .of the knife upwardly on the next operation of the machine.

It will be appreciated that the paper has not I I m that. the above operation I It will be appreciated also that by mounting the lower member of the cutting off mechanism as above described and by backing this member with the rod 84' which is under spring pressure the member 18 is permitted a slight pivotal action about the bushing 81, thereby providing a shearing between the movable blade 43 and the lower member 18 without the necessity of employing a flexible blade.

It is to be understood that changes may be made in the details of construction above described within the purview of my invention.

What I claim is:

1., In a machine for handling paper tape, the combination of feeding means for advancing the tape, a vertically movable knife or cutter for severing the tape, means for raising said knife into operative position after each severing operation and means for reversing the feeding means after the tape is severed for retracting the leading end of the tape out of the path of said knife or cutter as the same is being raised intoposition ready for the succeeding severing operation.

2. In a machine for handling tape, the combination of tape advancing mechanism, a downwardly movable knife for severing said tape, driving mechanism for the advancing mechanism, a clutch intermediate the advancing mechanism and the driving mechanism, means operable substantially simultaneously for throwing out said clutch and releasing saidknife for operation, means far raising the knife into operative position after each severing operation, and means for reversing the advancing mechanism after the tape has been severed by said knife prior to raising of the knife into position ready for the next severing operation to retract the leading end of the tape out of the path of the ascending knife.

3. In a machine for handling paper tape, tape advancing means, a drive therefor, a clutch intermediate the driving mechanism and the advancing mechanism, a second driven advancing mechanism spaced from the first-mentioned advancing mechanism, a knife intermediate said advancing mechanisms, means for throwing out said clutch to disconnect the first-mentioned advancing mechanism from the drive therefor substantially simultaneously with the operation of said knife, without interrupting the drive to the second-mentioned advancing mechanism.

4. In a machine for handling tape, the combination of a pair of feed rolls for advancing the tape, a drive therefor, a clutch intermediate the drive and the rolls, a pivoted knife for severing the tape advanced by said rolls, a vertically movable yoke attached to said knife and operable to raise the same into operative position, a clutch operated by the movement of said yoke for clutching the driving means to the feed rolls, a rotatable shaft for imparting movement to said vertically movable member to elevate the knife and throw in said clutch, continued movement of said rotatable shaft releasing said member allowing the same to return to its original position, the knife to drop to sever the tape and to throw out said clutch.

5. In a machine for handling tape, the combination of intermittently operated feeding means for advancing the tape, a clutch rotated by said feeding means, tape severing means operating in timed relation to the operation of the feeding means, a spring fixed at one end and having its other end attached to a rotary part of said clutch to be placed under tension during operation of the feeding means to advance the tape, said spring retracting between operations of the feeding means to reverse the feeding means thereby to effect reversal of the movement of the tape.

6. In a machine for handling tape, the combination of tape feeding mechanism, a knife for severing the tape, means for raising the knife after a severing operation into position above the tape for the next severing operation, reversing means for the feeding mechanism operating automatically after the cutting operation to retract the tape out of the path of the knife on its upward movement to operative position.

7. In a machine for handling tape, the combination of tape feeding mechanism comprising a shaft, a disc clutch carried by said shaft, a spring attached to one of said discs, and to the machine frame, rotation of the shaft rotating one of said discs to place said spring under tension, a knife for severingjthe tape, said spring after the knife has descended to sever the tape reversing the tape out of the path of the knife when the latter ascends to operative position.

8. In a machine of the class described, the combination of a reciprocable knife, a relatively stationary knife or cutter cooperating therewith, an adjustable pivot about which the relatively stationary blade is adapted to be pivoted substantially at right angles to the travel of the reciprocable knife, and a spring opposing such pivotal movement.

' JOSEPH ETTL.

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