US2334160A - Web splicing device - Google Patents

Description

Nov. 16, 1943.

c. s. CAFFREY 2,334,160

WEB SPLICING DEVICE Filed June 29, 1939 7 Sheets-Sheet l Gi er/es S. Qa re Nov. 16, 1943. c. s. CAFFREY. 2,334,160

WEB SPLICING DEVICE I Filed June 29, 1939 '7 Sheets-Sheet 2 J EE! Z" g/ r Cardew Qaffrey.

Nov, 16, 1943.

WEB SPLIGING DEVICE Filed June 29, 1939 7 Sheets-Sheet 5 c. s. CAFFREY 2,334,150. I

Nov. 16, 1943. c. s. CAFFREY WEB SPLICING DEVICE Filed June 29, 1939 Nov. 16,1943. Q s, CAFFREY 2,334,160

WEB SPLICING DEVICE Filed June 29, 1939 7 Sheets-Sheet 5 J ma??? Q/ardsu zi' aff/"e7, I mam -N0v, 16, 1943. c s, cAFFREY 2,334,160

WEB SPLICING DEVICE Filed June 29, 1959 7 Shets-Sheet a Nov. 16,1943.

C. S. CAFFREY WEB SPLICING DEVICE Filed June 29, 1959 7 Sheets-Sheet 7 zw/ems,

Patented Nov. 16, 1943 Charles S- GafireyQPort Washington; 'N". Ye, as-

signer to) Wood, Newspaper Machinery Corporation, Plainfield; N; J'., a corporation oi Virginia minimum June 29, 1939,. SeriaL'No. zsmas 4 Claims. (own-58) It is well inthe printing trade to use a full speed; web: splicing device; where a driving mechanism is used to bring the new roll up to web speedprior to contact oi the new roll and the running web. This type of machine is-h-i-ghl y satisfactory but more expensivethanthe ordinary magazine reel which may beused tomake splices at approximately 40 feet a minute;

The objects of the present invention include: providing an apparatus: for splicing a new press roll to an exhaustingweb at-medium speeds between the 40 ft. per minutespeed of the ordinary magazine rest and full press speed which in some cases runs as high as 2000 ft. per minute; providing an. apparatus for advancing a new roll into engagement with a running web, whereby the latter frictionally drives-I the former, is spliced thereto, the web is out just after the splice, and an automatic tension control for the new roli is brought into, play; providing a rotatable reel for mounting a plurality of rolls, preferably'two, i. e., an exhausting roll and a newpas'te-prepared roll whereby the new roll may be advanced to frictionally engage the running 'web of the exhausting roll, means to lock the new roll against rotation, means to release the lock upon a predetermined rotation of the reel, the new roll being then rotated by the web, an automatic tension regulator for the new roll, means to hold the regulator inoperative, means to release-the holding means upon a predetermined rotation of the new roll'consequent to the release of the-roll lock, means associated'with the releasing means for the holding means to automatically cut the exhausting web afterthe splice, the splice being made by the frictional pressure between the web and the new roll after the release of the roll lock, and side register means for the roll. Other objects and advantagesof the invention will appear hereinafter.

Reference is to be had drawings, in which Fig. 1 is an endelevation of the machine; Fig. 2 is a front elevation of one end of the machine, parts being broken away; Fig. 3 is a front elevation of the other end of the machine, parts being broken away;

Fig; 4 is an elevational view of the automatic tension device and the web cutting device: and associated parts, in which'parts' are brokenfor clarity;

Fig; & is a detail view of the side register device Fig. 6 is a detail 'vilew of the roll loch;

Fig. 7 is a vicwsimil'ar to Fig. 4' but on a larger scale, with parts broken awam" r to the accompanying scope of: the. invention.

Fig; 8 is. a side vriewof theparts shown. in Fig. 1;.

Figs. 9: and 11 are. detail; views of. the web knife and associated parts;

Fig. 101sv a detail; view of the. huh and associated parts; and

' Fig; I0 1 is a section on the; line A-A of Fig. 10.

It. is'understood, of course, that parts of the mechanism may be; used without other combined or associated parts without; departing from the Thus: the splicing might. be: accomplished: even though the automatic tension device were not. used, l

As shown in the drawings there is provided a base I; to which. are bolted end pedestals 2 and 3. A shaft. f. is ,rotatablymounted in. the pedestalsand: carries a. gear 5 keyed. thereto. The gear 5' meshes with. a; worm E on a shaft) 1;. the latter being mounted in; a guard bracket; 8 in turn mounted on. the pedestal 21.. The. shaft 1' carries a gear Brmeshing with a gear "I, the latter being fastened to a shaft: H. The shaft II; is carried in the guardibracket: 8 and. mounts a hand-wheel t2 atits outer end. Motion of the wheel It will rotate the: shaft 4. as isobvious.

Reel spiders t3; M are rigidly secured to the shaft 41 adjacent: the pedestals, and by means of the shafts; [5,, H5 rotatably' mounted at: opposite extremities of the spiders, the; latter rotatabl'y supportpaperrolls l 'liand I38. The shafts l5 and to may be referred to as paper roll shafts, and

they are: detachable from the spiders for mount.-

ing the paper rolls in the reeL, Caps I9, 20, best shown in Fig. 1, hold the paper roll shafts. inplace, and. themselves are: held by hinge pins 2 l 22 respectively, which maybe looked as by thumb screws, not. shown; The: caps i9; 20 allow the paper roll shafts: l5, ii to rotate. and to move longitudinally but hold: themagainst. radial movement. 3

The paper roll shafts; l5, l6 are identical as are the means: to hold the rolls thereon. Referring. to Figs.v 5: and. 6, it; will be noted that the shaft t5 carries two truncated cones 2 la. and 22a,

the former being secured in desired position on shaft t5 by a set-screw 23. The. position of the cone. 2km is determined by the width of the paper roll. The cone, 22a is slidably mounted on the shaft and is adjusted towards and away from the. cone Ma'- by' a nut 24. threadedly' mounted on aisleeve 25 which is secured; to the shaft by a set screw 'zfii. It is; obvious that. by this. means the roll II'E maybe secured on the shaft t5 bythe cones. Zia-and 22w bearing against the core Ila ct therolL The core has: a slot or depressionllb at: one end"; as shown in- Fig. 6; and this slot is of the roll .H'and controls engaged by the head of a pin Zlb, to aid in securing the roll on the shaft. In passing, it is to be noted that the shaft l carries a gear 21 meshing with a gear 31 when the shaft is located in the at the free end of a lever 29 pivotally mounted on a lug on the spider M. The lever is movable about its pivot by a shaft 3| having a hand *ljneeessary to align a mark on the drum with a wheel 32 and threaded through a. poppetl3'3 i'ehgaging the lever 29 at approximate]y.v its midpoint. The shaft 3| is restrained from longitudi.-. nal movement by a shoulder pinned to the shaft, the shoulder and collar bet eeda' l e ing on opposite sides of the spider l4. The shaft' 3| is frictionallyheld against any alteration-of position due to vibration by a spring pressed bal engaginga countersink in the collar. Rotation 'of the-handwhee1 32 adjusts the poppet i3 longitudinally of the shaft 3ljand hence the shaftl5'is adjusted in the same direction through the movement of lever 29. 1:: z a To insert a roll -H-intothe reel, the shaft I5 is first dismounted therefrom, with the gearZ? remainingin fixedrelation to the shaft. .:The cone-2i a; isise t to suit the width of the roll, and

cone Ma and sleeve 25 are removed from the shaft so as to pass the latter through. the core Ila in the roll. The pin Zlb positions'the roll and cone 22a and sleeve 25 are then slid back the set screw 25 and the lock nutZ l. The'spider is rotated to a position where the shaft I5-n'1ay be inserted" directly into the bearings of the spiders I3, Mand when this has been (10118,th8 cap [9 is closed. Care should be taken that'the gear 21' meshes with gear 31; that the groove in shaft 15 engages "the trunnion 23, and that a tension arm 38, to be later described, is reset.

Turning to Fig. 4', it will beseen that the tension armed is pivotally mounted at one end on a shaft 4 I. This shaft 4! is supported in a bracket 39 bolted to the pider I3. A tension shoe 40 is pivoted to the other end of the arm 38, and' this shoe, as will be seen; bears against the periphery the web tension so that his dependent on the roll diameter.. A lever 42 is fixed to the shaft 4| and carries a poppet 43 I anchoring one end. of a spring 44', the other end of which is secured to an end of a brake band 45, passing. about. a brake drum 4?. The end of the spring 44 passing through the poppet .43 is threaded and the spring tension is adjustable by means of the coacting hand wheel 46. {The other end of the band 45 is held by a'bracket 49 and stud 49a to the spider l3.

' It is evident that moving the shoe 30 in a clockwise direction will shorten the" spring 44 and decreaseten'sion on the brake'band, and'conversely; moving the shoe counterclockwise will stretch'the spring and'increase tension. i r

Mounted onthe' spider l3 by abracket 48a; is a shaft lfi which carries at one end the gear 31' meshing with the gear 27 on the shaft l5;'and at its other end'a hub158, keyed thereto. hen resetting the tension arm'38 for'a new roll it is apparent that full 'te'nsion would be placed on the brake drum and it would not be possibleto move the roll against this tension for pasting, unless some means to, hold the" tension momentarily inoperative were provided. ,1.For this and; other reasons, "the. drum 4'! is; .rotatably onto the shaft and secure the roll by tightening v mounted on the hub 50 and these elemenm are constructed in such manner that although the drum is held from rotation by the brake band 45, the hub 50 and hence the roll l1 may turn a little less than a full revolution before being locked against the drum, thereby applying the brake tension to the web. This is accomplished by providing a piece 56a on the hub which engages a member on the .drum, whereby the latter drives the former at one relative position of the parts; see Fig, 10a.

Before setting the tension arm 38 it will be fixed mark on the machine to permit the greatest amount or roll: freedom previous tothe hub and fbrake engagement.

position such that the-tail end of the glue of" adhesive will be approximatelythree inchesfrom the point where the web from the expiring ;roll willsleave contact with the surfaceof the new roll when'the reel is later rotated to bring thenew roll in frictional contact with this, running web.

The shaft 4! carries a lever 55 in, addition to the arm 38; and at its free end; this lever mounts aspring pressed pawl-52 engaging a tension ratchet arm .53 pivoted to It is clear that if the pawl 52 bedisengagedfrom the arm 53, the spring will be allowed to move the shoe 40 against the roll H, to regulate the tension thereof. y

A rod 54 is slidably.mounted in the bracket 48a, see Fig. 6, and has a single gear tooth shaped. projection 540 on itsupper'end to engageithe teeth; on the gear 31. At -the lower end; thearod the spider l4, ,see-Fig.7.

; 54 isprovided'with threads for adjustment with respect to a boss 55'carried 4 and '1. This mechanism is located at the inside. of the spider l3. Thelever 56 is secured to one end of a shaft S'Iwhich paSses through the in alever 56, see Figs.

spider I 3 and has a'cam lever 58,fix ed to its otherv end.- Saidzcam lever.58 carries a handle 58a and a roller 59, the lattermounted on a stud 60. A cam 6! is bolted to the pedestal 2,,and intercepts the roller59 as the reel is rotated, thus causing the projection 54a. to-disengage from the gear 31 by the linkage just described. The rod 54 is held-in looking or unlocking position by a pin 62 carried in a drilled hole fi2a-in the bracket 48a, the-pin 62 being actuated bya spring 63 secured by a set screw 64, and engaging countersunk holes 64a in the rod 54.

Thus, rotation of the reel willarelease. the ,lock 4 54a, which prevents the roll from rotating until such release. It is to be pointed out that the cam 6| is so placed-as to provide for the longest wrappossible of the expiringv web about the new roll, and this is necessary in order. to have the new roll attain'approximately the same speed'as the expiring web. The greater the. friction betweentheweb and the new roll; the easier it is to obtain correct linear speed.

Assuming that Fig. 1 illustrates'the, position 1n which-the'expiring web. produces the greatest wrap about -the rol1-g;l1 previous to the release of the lock 54a, andthat-the-expiring rol1--|8;ihas

reached its minimum diameter, the operator continues to rotate the reel in a counterclockwise direction by means of the hand wheel l2.- After rotate by means of the shaft 48 and gears 21 and 31. The hub 50 is provided with a cam projection 50a that engages a roller 65 mounted on one end of a lever 66, the latter being pivotally mounted at approximately its mid point on a bracket 51 by a stud 68, the bracket being bolted to the spider l3. As shown in Figs. 4 and 9, the other end of lever 66 is provided with a latch 66a to engage a double-toothed ratchet 69, the latter being fixed to a shaft rotatably mounted in the bracket 61. The latch is held to the ratchet by a spring 66b secured to the lever 66 and the spider [3. The shaft 10 extends across the machine to a bracket similar to the bracket 61 but secured to the spider M.

The shaft 10 has secured thereto a serrated knife blade II that extends the width of the web I81; and is held from the web by the latch 66a and associated ratchet 69, so long as the lever 66 is not rocked by the hub projection 50a. A collar 12 is fixed to the shaft 10 by a set screw or other means and anchors one end of a Spring 13 coiled about the shaft 10. The other end of the spring is secured in the bracket 61. The spring is so tensioned, as seen in Fig. 11, that release of the ratchet 69 by the lever 66 under until the next movement of the lever 80 under influence of its coacting hub projection 50b.

When the shaft 10 reaches the position of the shaft 11 in Fig. 4, a like resetting will take place. The knife II will be returned to inoperative position, and the ratchet arm 53 will be returned to reengage the pin 52 to hold the tension arm 38 from going any closer to the roll, thereby estab- .lishing a constant tension for the remainder of influence of the hub projection. 50a, will allow the spring 13 to tend to coil and thus rotate the shaft 10, bringing the knife H into the web and severing the latter. The knife ll may be reset by the lever I l secured to the shaft 10.

The shaft 10 also has secured thereto a lever 14 carrying one end of a connection link 15 whose other end is attached to the pivoted tension ratchet arm-53, see Figs. 4 and 9.

As previously explained, release of pawl 52 from the ratchet 53 causes the shoe 4!! to engage the roll 11, and this release is accomplished by the connection link 15,moving to the right as seen in Figs. 4 and 9, under influence of the spring 13.

The operator can now rotate the reel to a position facilitating the removalof the expired roll it and the insertion of a new roll, and as the roll I! runs out; it is brought to the position formerly held by the roll IS. The parts described above as to the roll lock, the tension lock and the knife are duplicated with respect to the roll I8, as shown in Fig. 4. The knife 16 is reset by the lever is secured to the shaft 1.1, which engages a convenient projection on a bracket 19 in the counterclockwise movement of the reel. By this means, the shaft 11 is rotated against the action the time that the roll I1 is operating. The paper roll lock 54a will remain out of position until the new roll has been prepared and set, and then the lock is reengaged with the gear 31 by means of the handle 58a.

It is believed the operation of the device will be clear without further explanation, and that, the requirements of the invention are fulfilled. The new roll is easily insertable into the reel where it can be spliced into the old web without slowing the press materially, and proper tension control canbe retained by means of the automatic tension regulator and the side register adjustment.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:

1. In a device of the class described, a movable support, a shaft journaled therein, means to prevent rotation of said shaft, a tension device for said shaft, means to hold said device inoperative, means to release said rotation preventing means upon a predetermined movement of the support,

. and a lever cooperating with means on said shaft to release said holding means upon a predetermined movement of said shaft.

2. In a web splicing device, a roll rotatable on its own axis, movable means for supporting said roll, means to positively lockthe roll against rotation, in combination with a traveling web, means to relatively move the web and roll whereby they frictionally engage, means to release the locking means, and means operated by the rotation of the roll to cut the web at an interval after the release of the locking means.

3. In a web splicing device, a roll rotatable on its own axis, movable means for supporting said roll, means to lock the roll against rotation, in combination with a traveling web, means to relatively move the web and roll whereby they frictionally engage, means to release the locking means, a tension device for the roll, and means to render said tension device operative upon rotation of the roll.

4. A frame, a shaft journalled in the frame, a hub mounted in fixed relation to the shaft, a drum mounted in rotary relation to the shaft, interengaging means between the hub and the drum whereby the former drives the latter in a single relative position thereof, a tensioned band about the drum, means holding the band in full tension position, means on the hub releasing said holding means in one position of its rotary movement.

CHARLES .S. CAFFREY.

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