US2086476A

US2086476A - Web cutting mechanism

Info

Publication number: US2086476A
Application number: US31634A
Authority: US
Inventors: Quick Cecil George; Bennison William Edward; Alexander David Arthur Harling
Original assignee: R Hoe and Co Inc
Current assignee: R Hoe and Co Inc
Priority date: 1934-07-17
Filing date: 1935-07-16
Publication date: 1937-07-06
Anticipated expiration: 1954-07-06

Description

J y 1937- Q c. G. QUIICEZK ET Al, 2,086,476

WEB CUTTING MEGHANI SM Filed June 16, 1935 2 Sheets-Sheet, l

'July 6, 1937. C-GLQUICK ET AL WEB CUTTING MECHANISM 2 Sheets-Sheet 2 Filed "June is, less INVENTO R s.-

Patented July 6, 1937 I UNITED STATES PATENT OFFICE WEB CUTTING MECHANISM Cecil George Quick, William Edward Bennison, and David Arthur Harling Alexander, London, England, assignors to R. Hoe & Co., Inc., New York, N. Y., a corporation of New York Application July 16, 1935, Serial No. 31,634 In Great Britain July 17, 1934 9 Claims. (Cl. 164-60) This invention relates to improvements in web the support it; and this movement is transmitted cutting mechanism of the kind comprising a pluas an axial movement to the second shaft l4, rality of spaced discs which co-operate with cutthat end of this shaft remote from the first sleeve ting abutments to cut a web into ribbons of a sliding in the second sleeve 22; the arms l3 carry- 5-' width equal to the separation between adjacent ing the shaft-9 partake of this movement so that 5 discs. r the discs II have a simultaneous transverse According tothe present invention the pluadjustment. rality of discs are movable as a unit to effect a. The abutments with'which the discs co-operate side-lay adjustment and each disc is individually are in the form of circular flanges 21 on hubs 10 movable to effect adjustment between adjacent 28, the flanges and hubs being bored to fit on a 0 discs and, moreover, the cutting abutments are third shaft 29 parallel with the shaft 9, the correspondingly adjustable. peripheral portions of the discs I I being arranged The invention is illustrated in the accompanyto overlap the peripheral portions of the flanges ing drawings in which Figure l is a side elevation 21 so as to effect a shear cut of a web passed over partly in section, and Figure 2 an end elevation. the flanges 21. The, hubs 28 and flanges 21 are 15 In the drawings I indicates a web which is a sliding fit on the third shaft 29 and are propassed around rollers 2, 3 to the mechanism acvided with grub screws 30 whereby they may be cording to this invention, this mechanism opsecured in a position corresponding to the posierating-to slit the web into ribbons which are tion to which the corresponding discs are indivariously directed as desired, two leads of the vidually adjusted on the first shaft 9. This third 20 ribbons being indicated at 4, 5 these leads passshaft is slidably and rotatably mounted at one ing from a common roller 6 to deflecting rollers end in a bearing 3| carried by the part l6 and 8. v the other end of this shaft 29 is rotatably mount- The slitting mechanism, which is located beed in a bearing 32 carried by and is prevented D tween the rollers 3, 6, comprises a first shaft 9 from moving axially with respect to a third sleeve carrying hubs It to which slitting discs II are 33 slidably mounted in the second part 23; into secured. The hubs .III are a sliding fit on the i an extension 34 of the sleeve 33 extends a second shaft 9 so that they can be individually adjusted screwed member 35 having shoulders 36, 31 beon the shaft and each hub is provided with a tween which a flange 38 on a bearing cap 39 is grub screw I2 whereby the hubs and their discs received to prevent axial movement of the srcewed 30 can be secured to the selected position on the member 35, this screwed member having an opshaft 9. This shaft is carried at its ends and at erating hand-wheel 40. Thus, by operating the points between the ends in bearings on arms l3 second screwed member the third sleeve 33 which are secured to a second shaft l4 parallel can be slid and this movement is transmitted to 35 with the first shaft 9. One end of the second the third shaft 29 as an'axial movement so that 35 shaft I4 is rotatablyvmounted in, but prevented the abutments can be adjusted simultaneously to from axial movement with respect to, a sleeve correspond with the simultaneous side lay ad- I5 which is mounted to slide in a part 16 of the justment of the discs. The third shaft 29 may, machine frame and is formed with an arm en- I if desired, be supported between its ends by bear- 40 gaged between shoulders IB, IS on a screw ings 4| in which the shaft is slidably mounted. 40 threaded member 20, screwed into the part Hi, It will be seen that by the manipulation of the this member 20 being provided with an operating handle 24 the extent to which the peripheries of hand-wheel 2i. The other end of the second the discs H overlap the peripheries of the flanges shaft i4 is slidable in,but prevented from rotary 21 r g the abutments can be regulated to movement with respect to, a second sleeve 22 v regulate the depth of cut. While the adjustment 45 which is rotatably mounted in a second part 23 to regulate the depth of cut by manipulation of of the machine frame and this second sleeve 22 the handle 24 is of necessity limited, due to the is provided with an operating handle 24 by means meshed gears 43 and 44,-it is sufficient, when the of which the sleeve and hence the second shaft material being cut by the discs is paper-thin, and

canbe rocked, a locking bolt 25, passing through may be made without seriously affecting the op- 50 anarcuate slot 26 in the handle 24, being proeration thereof. By provision of this structure, vided for locking the arm against movement. it is also possible to adjust the shafts 9 and 29 It will now be seen that when the hand-wheel toward and away from each other, to compensate 2| on the screw-threaded member 20 is rotated, for smaller and larger diameter discs H and corthis member causes the first sleeve I! to slide in responding diflerent diameter gears 44. 55

To provide for the rotation of the discs and abutments, the third shaft 29 is provided with a gear wheel 42 driven in any convenient manner. This third shaft 29 is provided with a second gear 5 wheel 43 in mesh with a gear wheel 44 on the first shaft 9, so that rotation of the shaft 29 is transmitted to the shaft 9.

Apparatus constructed in accordance with the invention is of particular value inits application to printing machines in which the web (or webs) have a long path to follow before beingsevered into product lengths and folded, and especially when the machine is one of the kind known as intaglio printing presses, in which the web is required to pass around drying drums for ef fecting the drying of ink on the web: the long path and the drying drums (and also turner bars) are factors which tend to produce sidelay wander of the web but by reason of the mechanism described, when once the slitters have been adjusted to produce the desired width of ribbon,-

they can be moved bodily to compensate for such wander,

What we claim is:--

2.5 l. Mechanism for cutting a web into ribbons and comprising a first shaft arranged to extend transversely with respect to a web to be cut, a plurality of cutting discs secured in adjustable spaced relationshipto the shaft, a second shaft 7 parallel with the first shaft, a plurality of abut- \ments secured in adjustable spaced relation to the second shaft, a third shaft parallel with the 1 first and second shafts, means carrying one of the last mentioned shafts from the third shaft, means for effecting axial movement of the other of the saidlast mentioned shafts, means for effecting axial movement of the third shaft, and means for effecting angular movement of the third shaft.

2. Mechanism for cutting a web into ribbons and comprising a first shaft arranged to extend transversely with respect to a web to be cut, a plurality of cutting discs secured in adjustable spaced relationship to the shaft, a second shaft parallel with the first shaft, a plurality of abut- 5 ments secured in adjustable spaced relation to the second shaft, a gear on thefirst shaft and a second gear on the second'shaft and meshing with the gear on the first shaft, a third shaft parallel with the first and second shafts, means 5 carrying one of the last mentioned shafts fromthe third shaft, means for effecting axial movement of the other of the said last mentioned shafts, a further gear on the said other shaft and adapted to be driven to transmit drive to the said other shaft, means for effecting axial movement of the third shaft, and means for effecting angular movement of the third shaft.

3. Mechanism for cutting a web into ribbons and comprising a first shaft arranged to-extend 6 transversely with respect to a web-to be cut, a

plurality of cutting discs secured in. adjustable spaced relationshipto the shaft, a second shaft ments secured in adjustablespaced relation to the 6 second shaft, a third shaft parallel with the first and second shafts, means carrying one of the last mentioned shafts from the third shaft, screw and nut means for'eifecting axial movement of the other of the said last mentioned shafts, screw 70 and nut means for effecting axial movement of the third shaft, and means for effecting angular movement of the third shaft.

parallel with the first shaft, a plurality of abut 4. In a web cutting mechanism, a rotatable shaft having a plurality of abutments, each adjustably mounted thereon for axial adjustment relatively thereto, a rockable shaft, means to axially adjust said rockable shaft, a second rotatable shaft having a plurality of cutting discs thereon, each adjustably mounted thereon for axial adjustment relatively thereto, and means rockable with said rockable shaft to support said second rotatable shaft.

5. In a. web cutting mechanism, a rotatable shaft having a plurality of abutments thereon, each adjustably mounted thereon for axial adjustment relatively thereto, said shaft being mounted, for axial adjustment, a rockable shaft, said rockable shaft being mounted for axial adjustment, a second rotatable shaft having a plurality of cutting discs thereon, each adjustably mounted thereon for axial adjustment relatively thereto, and means secured to said rockable shaft and supporting said second rotatable shaft to connect the same, whereby said second rotatable shaft will move axially with, and be rocked by, said rockable shaft, and means to rock said rockable shaft. j I

6. In a web cutting mechanism, a first rotatable shaft having a plurality of, spaced apart abutments thereon, a rockable shaft having shaft supporting arms thereon, a second rotatable shaft supported by said arms'and having web cutting discs thereon spaced apart to cooperate with said abutments on said first shaft, means to axially adjust the rockable shaft, means to rock the rockable shaft, and means to lock the rockable shaft -in anyof its rocked positions.

'1'. In a web cutting mechanism, a first rotatable shaft having axially adjustable abutments thereon, a second rotatable shaft having abutment cooperating, axially adjustable cutting discs thereon, an axially adjustable member having means to rotatably support one of said rotatable shafts, means to axially adjust the other of said rotatable, shafts, and means to drive said rotatable shafts.

8. In a web cutting mechanism, a first rotatable shaft having axially adjustable abutments thereon, a second rotatable shaft having abutment cooperating, axially adjustable cutting discs thereon, an axially adjustable member having means to rotatably support one of said rotatable shafts, means to rock said axially adjustable shaft supporting member to move the abutments and discs relatively to each other, means to lock said rockable member in any of its rocked positions, and means to drive said rotatable shafts.

9. In a web cutting mechanism, a first rotatable shaft having axially adjustable abutments thereon, a second rotatable shaft having abutment cooperating, axially adjustable cutting discs thereon, an axially adjustable member having means to rotatably support one of said rotatable shafts, to simultaneously axially adjust all of the abutments and all of thediscs relatively to each other, means to lock said axially adjustable shaft supporting member in any ofits axially adjusted positions, and means to drive said rotatable shafts.

CECIL GEORGE QUICK. I

WILLIAM EDWARD BENNISON; DAVID IARTHUR manmo ALEXANDER.