US3066883A

US3066883A - Continuous counter roll winder

Info

Publication number: US3066883A
Application number: US18600A
Authority: US
Inventors: Edward F Egan
Original assignee: FRANK W EGAN AND CO
Current assignee: FRANK W EGAN AND CO
Priority date: 1960-03-30
Filing date: 1960-03-30
Publication date: 1962-12-04
Anticipated expiration: 1979-12-04

Description

Dec. 4, 1962 E. F. EGAN CONTINUOUS COUNTER ROLL WINDER Filed March 30, 1960 11 Sheets-Sheet 1 IN VENTOR.

-4 ATTOE/YEY Dec. 4, 1962 E. F. EGAN dONTINUOUS COUNTER ROLL WINDER Filed March 30, 1960 11 Sheets-Sheet 2 INVENTOR.

Edward 271594, BY I ATTUR/YEY' Dec. 4, 1962 E. F. EGAN 3,066,883

CONTINUOUS COUNTER ROLL WINDER Filed March 30. 1960 ll Sheets-Sheet 3 IINVENTOR. (f Edwatdfj a ATmR/YEY Dec. 4, 1962 E. F. EGAN co'rmnuous COUNTER ROLL WINDER 11 Sheets-Sheet 4 Filed March 30, 1960 INVENTOR, Flyan;

Edward BY $7 M /97'7'0R/YEY Dec. 4, 1962 E. F. EGAN CONTINUOUS COUNTER ROLL WINDER INVENTOR. Edward Z flfl, BY

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Dec. 4, 1962 E. F. EGAN 3 CONTINUOUS COUNTER ROLL WINDER Filed March 30, 1960 ll Sheets-Sheet 7 23 j i I n l} I alr- 79 76 I 5 O 00 ghvw 7/ 52 55 4 a 0 M5 9? i 64 24 N 9596 h 65 25 24' 8 DO I o I K 1 95B" 104 I a g9 94 I 7 F I,

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Dec. 4,1962 E. F. EGAN coN'rINuous COUNTER ROLL WINDER ll Sheets-Sheet 8 Filed March 30, 1960 IN V EN T 0R. W

Edward ATwR/Yfl Dec. 4, 1962 E. F. EGAN 3,066,883

CONTINUOUS COUNTER ROLL WINDER Filed March 30, 1960 ll Sheets-Sheet 9 k R m N IN V EN TOR. 23 E I Zdzmmlf'ikma I BY . vW/EV Dec. 4, 1962 E. F. EGAN CONTINUOUS COUNTER ROLL WINDER ll Sheets-Sheet 10 Filed March 30. 1960 m m M Edward Effl,

r m/YEV Dec. 4, 1962 E. F. EGAN 3,066,883

CONTINUOUS COUNTER ROLL WINDER Filed March 30, 1960 ll Sheets-Sheet l1 IN V EN TOR.

Edward [296L1 WWW/fr United rates atent Ofihce 3,066,883 Patented Dec. 4, H962 Egan 8: Company, Somerviile, N.J., a corporation of New Jersey Filed Mar. 30, 1960, Ser. No. 18,600 16 Claims. (Cl. 242-sas This invention relates in general to a machine wherein a Wide web of paper or the like is automatically longitudinally slit into a plurality of strips, a piece of ccre material of a length equal to the width of said web is fed into the machine and cut or slit into a plurality of sections one for each of said strips, said strips are simultaneously wound upon their respective core sections to form, for example, short rolls such as counter rolls, and the said wound short rolls are then removed from the machine.

A primary object of the invention is to provide such a machine which shall embody a novel and improved construction, combination and arrangement of parts whereby the wide web shall be slit longitudinally continuously into a plurality of narrower strips, cores on mandrels shall be fed into the machine in succession and successively cut into sections and the web strips shall be wound simultaneously on their respective core sections between two bed rolls and a rider roll, to form a plurality of short rolls, after which the mandrels with the wound rolls shall be removed in succession from the bed rolls and withdrawn from the short wound rolls to release the latter, all in a continuous rapid operation which permits a large number of wound rolls to be produced at high speed and economically in accurately wound condition.

Another object is to provide a web rewinding machine of the character described which shall include a novel and improved carrier for a mandrel that supports the original long piece of core material or long core, means for applying such a core-bearing mandrel to said carrier, means for rotating said carrier about an axis to move the core into contact with a rider roll rotating about said axis past core cutters or slitters for dividing the core into core sections and to continue movement of the individual core sections while they are in contact with the rider roll to a station at which the ends of the narrow web strips are attached to their respective core sections, and means for winding the strips on the core sections including two main winding rolls and said rider roll, and means for removing the mandrel with the wound rolls thereon.

A further object of the invention is to provide a machine of the type described which shall comprise a novel and improved construction and combination of a core carrier capable of supporting a plurality of mandrels at the same time, means for rotating the core carrier about an axis to move the long cores in succession along a cam which brings the cores in contact with a rider roll that rotates coaxially with the carrier, core cutters past which the long cores are moved in succession to divide each core into a plurality of core sections, means for attaching the ends of the narrow web strips to the respective core sections to start wound short rolls, two main winding or bed rolls into contact with which the started wound rolls are moved while held in contact with the rider roll for completing the winding operation, means for inserting into the carrier one mandrel carrying a long core while winding up rolls on the core sections on another mandrel is being completed, and means for removing the second-mentioned mandrel during the cutting of the long core into sections on the first-mentioned mandrel and the starting of the winding of the strips on said core sections.

Still another object is to provide such a machine wherein the long core and the core sections are brought into contact with the rider roll by a cam, means being provided for rotating the core carrier to bring the mandrel into contact with said cam to start. and continue rotation of the long core and core sections with respect to the core cutters, and means is also provided for attaching the web strips to the respective core sections and foidirecting the started wound rolls onto the main winding or bed rolls.

It is another object of the invention to provide novel and improved means coacting with the core carrier for applying one core-bearing mandrel to the carrier and for removing the mandrel bearing the wound rolls from between the rider roll and bed rolls.

The invention also contemplates a novel and improved construction and combination of a rider roll and a core carrier which shall include an end block for the carrier at each end of the rider roll and rotatable coaxially with the rider roll, a plurality of seat blocks in each end block each to cooperate with the seat block in the other end block for supporting a mandrel, and cams in spaced relation to the rider roll axis to receive between them a mandrel bearing core material, and means for maintaining yielding rolling contact between said mandrel and said cams and between said rider roll and said core material.

Other objects of the invention are to provide a web rewinding machine of the nature hereinabove described which shall be simple and inexpensive in construction, reliable and durable in operation and which shall produce accurately and hard wound short or counter rolls at high speed and low cost.

While the structural details of the machine may be widely varied within the scope and the principles of the invention, for the purpose of illustration one form or machine embodying the invention is shown in the accompanying drawings in which FIGURE 1 is a schematic side elevation of the machine including the support for the initial wide web, the core and web slitting and the core section winding apparatus, and a mandrel extracting or removing apparatus, mandrel elevator and core storage unit;

FIGURE 2 is a front elevation of the machine viewe'd from approximately the plane of the line 2-2 of FIG- URE 1;

FIGURE 3 is a greatly enlarged side elevation of the core carrying, slitting and winding apparatus as illustrated in FIGURE I viewed from the plane of the line 3-3 of FIGURE 2;

FIGURE 4 is an elevation of the side of the apparatus opposite that shown in FIGURE 3 observed from the plane of the line 44 of FIGURE 2;

FIGURE 5 is a transverse vertical sectional view approximately on the plane of the line 55 of FIGURE 2';

FIGURE 6 is a top plan view of the apparatus from approximately the plane of the line 6-6 of FIGURE 3;

FIGURE 7 is an enlarged fragmentary schematic transverse sectional view, approximately on the plane of the line 77 of FIGURE 6, of the core carrier, core slitting and core winding apparatus showing the position of the parts during the insertion of a new core-bearing mandrel and the starting of the removal of a mandrel bearing the wound rolls;

FIGURE 8 is a similar view showing the disengagement of the core carrier from the mandrel bearing the partially wound rolls and also showing the position of the new core-bearing mandrel just prior to the starting of the rotation of the core;

FIGURE 9 is a similar view showing the next successive step in the operation of the parts and with the mandrel bearing the wound rolls partially removed from the apparatus;

FIGURE 10 is a view like FIGURE 9 but showing the severance of the web strips and the attachment of the ends of the strips to the core sections prior to complete removal of the wound roll bearing mandrel;

FIGURE 11 is a view like FIGURE 10 showing the next step in the operation of the apparatus, namely, the beginning of the winding of the core sections;

, FIGURE 12 is a fragmentary schematic longitudinal vertical sectional view of the core slitting and winding apparatus shown in FIGURE 11 with the core sections being wound between the main winding rolls and the rider roll, and the mechanism for feeding the core-bean ing mandrels to the core carrier and for removing the mandrel bearing the wound rolls from between the winding rolls;

FIGURE 12A is a further fragmentary view showing another position of the mandrel removing mechanism illustrated in FIGURE 12;

FIGURE 13 is a fragmentary elevational view taken approximately from the plane of the line 1313 of FIGURE 6, showing one end of the core carrier;

FIGURE 14 is a transverse sectional view on the plane of the line 1414 of FIGURE 13;

FIGURE 15 is a fragmentary plan view of a portion of the core carrier illustrated in FIGURE 13;

FIGURE 16 is a transverse vertical sectional view approximately on the plane of the line 1616 of FIG- URE 6;

FIGURE 17 is an enlarged side elevational view of one of the core cutting devices; and

FIGURE 18 is a horizontal sectional view on the plane of line 1818 of FIGURE 17.

Specifically describing the illustrated embodiment of the invention, reference character A designates a supporting stand of any suitable construction for mounting a roll B of wide web material B to rotate about a horizontal axis that is indicated at C, from which the web is led through a known type of web-tightening mechanism D around an idler guide roller E of the web slitting to core cutting and strip winding mechanism P which includes two main winding or bed rolls 1 and 2 and a rider roll 3 between which are rotated core sections for winding upon each section a web strip formed by slitting the wide web B, as the latter is drawn from the supply 'roll B by the core sections when they are rotated by the bed rolls and rider roll.

The bed rolls 1 and 2 are shown as driven through a belt connection 4 between a pulley 5 on the shaft 6 of the bed roll 1 and a pulley 7 on the shaft of an electric motor 8 (FIGURES 4 and 6); and the bed roll 2 is driven from the bed roll 1 by a belt 9 that passes over pulleys 10 and 11 on the shafts of the bed rolls, and a belt-tightening pulley 12 of any suitable construction that is mounted on the frame F (FIGURE 3).

Any suitable devices for slitting the web B may be utilized but there are shown a plurality of discs 13 mounted in spaced apart relation widthwise of the web on a shaft 14 that is journaled in the frame F of the web slitting, core cutting and winding apparatus and has a belt and pulley drive 14. The discs cooperate with cutting wheels 15 that are journaled on the stub shafts 16 secured in journal arms 17 that are adjustably mounted in brackets 18 that are in turn rotatably adjustable on a shaft 19 journaled in the main frame F, whereby the cutting wheels 15 can be adjusted both to and from the corresponding discs 13 and swung in their own planes relative to the discs 13. The shaft 19 is rotatable to simultaneously swing the wheels 15 out of the way, by a worm gear 20 on the shaft that meshes with a worm 21 journaled on the frame F. The wheels 15 engage the web between the bed roll 1 and a stationary guide plate 22 mounted on the main frame and over which the web slides.

In accordance with the invention, the rider roll 3 is mounted on a hanger frame G that includes parallel arms 24 which are mounted to rotate about a horizontal axis intermediate their ends on a shaft 25 mounted in the main frame F. The rider roll shaft 23 is journaled in bearings 23, one at one end of each arm 24 and the other ends of said arms are connected by a tie and counterweight bar '26 to one end of which is connected the piston rod 27 of a known device that includes a cylinder 28 for the piston pivotally connected at 29 to the frame F so that the movement of the hanger frame is damped by the device.

The rider roll is driven at high speed by an electric motor 30 mounted on a bracket 31 secured on and projecting from one of the arms 24 of the hanger frame, the output shaft of the motor having thereon a pulley 32 that is connected by a belt 33 to another pulley 34 on the shaft 23. The hanger frame G permits vertical movement of the rider roll to accommodate starting of new rolls and the variations in diameter of the rolls being wound, and suitable means is provided to prevent momentarily the descent of the rider roll, such as a cam 35 mounted on a shaft 36 journaled in the main frame above the end of the hanger opposite the rider roll and coacting with a follower lug 37 on the adjacent arm of the hanger frame, the shaft 36 being driven at relatively slow speed by a sprocket 38 fixedly connected to the shaft and connected by a sprocket chain 39 to a sprocket 40 on the output shaft of an electric motor 41 mounted on the main frame F.

In accordance with the invention, a Web-winding device is shown in which long core material that is generally designated H is initially slidably telescopically mounted on a mandrel I which supports the core material during its movement past the core cutters and continues to support the core sections throughout the winding of the short rolls, and the winding devices are fed in succession to a carrier I mounted coaxially with the rider roll on the hanger frame and are removed from between the winding rolls in succession.

The carrier freely rotates on the shaft 23 of the rider roll by the motor 41 in timed relation to the movement of the cam 35 and the swinging movement of the hanger frame G, and as shown the carrier comprises two end blocks 42 (FIGURES 5, 7, 11 and 1345), one mounted at each end of the rider roll and freely rotatable on the shaft 23. These blocks are rotated in absolute synchronism by a sprocket 43 fixedly connected to each block and driven by a chain 44 from a sprocket 45 that is fixed on the shaft 25 on one end of which is a gear 46 that meshes with a gear 47 which is fast connected to the shaft 36. In each of the end blocks 42 are two oppositely disposed mandrel seat blocks 43 that are arranged in radial relation to the shaft 23 as best shown in FIGURE 14.

Each seat block is slidably mounted in a groove 49 in the corresponding end block and is held against displacement from said groove by cap plates 50 (FIGURE 15). The seat blocks are normally biased outwardly away from each other at opposite sides of shaft 23 by compression springs 51 interposed between the inner ends of the blocks, and to limit movement of the blocks in both directions, a stop pin 5-2 is fixed in the end block for each seat block with its inner end disposed in a slot 53 in the seat block so that movement of the seat blocks will be limited by abutment of the end walls of their respective slots with their corresponding pins. At its outer end each seat block has a concave seat 54 for one end of a mandrel I. Each mandrel preferably has a ball-bearing seat collar 1 relatively rotatably mounted on each end thereof, and with this construction it will be observed that a mandrel may be disposed parallel to the axis of the carrier with the seat collar 1 at each end thereof in the seat 54 of one of the seat blocks 48 as best shown in FIGURES 5, 6 and 7. During the operation of the machine the carrier moves each mandrel past core cutters. At the same time the mandrels are held against displacement from the carrier and the cores thereon are moved past the core cutters and thereby divided into sections H and said sections are moved to the station at which the winding of the strips on the cores is started. As shown, the carrier is initially in the position illustrated in FIGURES 5 and 12 with the seat of the uppermost seat block facing upwardly to receive the ends of a core-bearing mandrel and the carrier is rotated in the direction of the arrow of FIGURE 7 to move each end portion of the mandrel into rolling contact with a cam 56 that is mounted at 57 on a support bar 58 which is secured to and between the arms 24 of the hanger bracket. The cam has a cam edge 59 that is disposed in spaced relation to the rider roll shaft and serves in effect as a track for the corresponding seat collar I of the mandrel so that as the mandrel is moved by the carrier as shown in FIGURES 7 through 10, the core on the mandrel will be brought into and held in frictional contact with the periphery of the rider roll so that the core is rotated. The cams 56 are preferably pivotally adjustable on the pivots 57, each by means of adjusting bolt 6%) which has one end connected to the support bar and loosely extends through a hole in :1 lug 61 rigidly connected to the corresponding cam, with a compression spring 62 interposed between said lug and adjusting nut 63 on the bolt 60.

During said movement of the mandrel and long core I, the core is brought into contact with core cutters K that are mounted on the support bar 53 in spaced relation to each other and corresponding to the spaced relation of the

strip slitters

14, 15. Any suitable type of cutter can be utilized, but a desirable form is illustrated in the drawings and best shown in detail in FIGURES 16, 17 and 18. Each cutter includes a casing or bracket 64 mounted on and depending from the support bar 58 and having adjustably and rotatably mounted therein a circular cutting disc 65 normally disposed with respect to the rider roll so that as the long core is moved by the carrier, the cutting disc will be engaged by and penetrate the core so as to divide it into sections, the mandrel serving as a platen for the disc. The discs are normally yieldingly pressed into the proper cutting relation to the core by a pneumatic piston and cylinder device 66 the piston of which is connected by a flexible wire or the like 67 to a journal block 68 in which the disc is journaled and which is slidably mounted in slots 69 in the casing 64. Air under pressure is supplied to the cylinder 66 from a suitable source, and under suitable pressure control, by a tube 74;. Preferably the cutters are adjustable relative to the width of the web B and for this purpose a dovetail hanger rail 71 is secured to the support bar 58 by brackets 71 and the upper edge of each casing as is provided with a groove 72 one end wall of which is inclined to abut one inclined side of the hanger rail 71, and a clamping block 73 abut the opposite side of the hanger rail and is adjustably slidable in the groove 72 by a screw '74 threaded in the casing. Obviously by loosening the screw 74 and block 7.3, the casing 64 can be slid along the hanger rail and thereafter clamped into position by tightening the screw '74.

As hereinabove pointed out, during the operation of the machine the mandrel bearing a long core is set on the core carrier while rolls on the core sections H on another mandrel are being completed between the bed rolls and the rider roll as shown in FIGURE 7. As the diameter of the rolls increases, the rider roll and carrier continue to move upwardly and when the rolls reach a certain diameter movement of the seat block 43 under pressure of its spring 521 is stopped by the pin 52 and upon continued upward movement and rotation of the carrier, the seat block is moved away from the mandrel (the mandrel now being held by the jaws 92 and 93), and Winding of the rolls continues until shortly before a the: desired diameter is reached, whereupon the first mentioned mandrel and the long core are started on their movement over the core cutters as shown in FIGURE 8, and the mandrel with the rolls thereon, is withdrawn from between the winding rolls as shown in FIGURE 9, after which the Web strips are severed between the two bed rolls by a pneumatically operated blade L as shown in FIGURE 10, whereatter the mandrel with the wound short rolls B (FIGURES 2 and i2) is moved to a support and the mandrel is withdrawn from the wound rolls B" to release the latter as shown in FIGURE 2.

Any suitable means may be utilized for feeding the mandrel with the long core into the core carrier and for removing the mandrel bearing the wound rolls from beween the winding rolls. However, I have shown two arms M having means for gripping and releasing a mandrel adjacent its ends for transferring a mandrel bearing a core from a supply hopper to the core carrier, and two other arms N with mandrel gripping and releasing means for transferring a mandrel bearing the short wound rolls from the winding rolls to a suitable support where the mandrel is removed from the rolls. More particularly, one arm M is disposed adjacent and outwardly beyond each end block 42 of the core carrier, the two arms being mounted on a common shaft 75 which is journaled in the main frame F. The swinging end of each arm is provided wtih a rigid jaw 76 with which cooperates a movable jaw 77 pivotally connected at 78 to the arm. Said ri id and movable jaws have complemental arcuately concave seats to grip between them one of the collars I of a mandrel, and the movable jaw is actuated toward and from the fixed jaw by a toggle that includes a lever Sil mounted intermediate its ends at 30 on the arm and pivotally connected at one end to the jaw by a link 79. The other end of the lever 8% has pivotally connected thereto a rod 81 that is slidably mounted in a guide lug 82 on the arm and is normally biased in one direction by a spring 83 so as to hold the movable jaw open as shown in FIGURE 7 or closed as shown in FIGURE 12. For initiating the jaw 77 into open position to release a mandrel, as shown, for example, in FIGURE 7, a finger 84- is connected to the toggle lever so as to engage a trip arm 85 on the frame F as the jaws 7d, 77 approach the: mandrel seat in the core carrier (FIGURES 3 and 5'). After the mandrel has been deposited into the core carrier, the arm M is swung away from the core carrier so as to move the jaws into gripping relation to a mandrel that has been inserted into a long core H disposed in the core storage hopper 86 as shown in FIGURE 12. As the rigid jaw reaches the mandrel, the movable jaw is closed by engagement of the movable jaw with a trip stud 87 as the arm M descends. Obviously the trip member will be so positioned as not to close the jaw '77 as the arm swings away from the core carrier, and the movable jaw will be held closed by the toggle as the arm swings from the hopper 86 toward the core carrier.

Each arm N includes two sections, one section 88 being pivotally mounted at 89 on the frame F and having a guide channel Qt? in which is slidably mounted the other section 5 1 which is curved so that it may extend inwardly over the shaft of the bed roll as shown, for example, in FIGURES 5 and 7. The section 91 has a rigid jaw 92 at its outer end with which cooperates a movable jaw 93 which is connected to a pin 94- rotatable in the section 91. The movable jaw is actuated to open and closed positions by a toggle mechanism similar to that on each of the arms M, including a lever 95 pivotally mounted intemediate its ends 96 on the section 91 and having one end pivotaily connected to the movable jaw by a link 97. The other end of the lever has pivotally connected thereto one end of a rod 98 which is slidable in a lug 99 on the section 91 and is normally biased in one direction by a spring ltltl so that the spring and toggle will hold the movable jaw in both open and closed positions.

A pneumatic device whose cylinder 101 is connected to the section 88 has its piston 102 connected to the section 91 to cause relative movement of the two sections in one direction, for a purpose to be described.

As above stated, the arms M and N operate in synchronism and when the arm M is in position to pick up a core-bearing mandrel from the hopper, the arm N is in the position to drop a mandrel bearing the wound rolls onto a trough-like support 103, as shown in FIGURE 12. In that figure, arm N has just completed its movement in the direction of the arrow incident to withdrawing a mandrel bearing the wound roll, and toward the end of said movement the jaw 93 was opened by engagement with a trip 104 on the support 103, of a trip finger 104 connected to the toggle lever 95. During this movement, the section 91 was slid outwardly or to the left in FIGURE 12 relative to the section 38 by engagement of a follower roller 108 mounted on an extension 109 of the section 91 with a cam plate 107 pivoted at 110 on the frame F so as to properly position the wound rolls in the support 103; and at the same time the piston of device 101, '102 is moved in one direction in the cylinder. After the opening of the jaw 93, said movement of the arm N continues to move the jaw 92 downwardly and clear of the mandrel and during this additional movement, the compressed air in the

device

101, 102 slides the arm section 91 in the section 83 to the right as shown in FIGURE 12A so that when the arm N begins to swing in the other direction toward the mandrel on the bed rolls, the follower roller 101 may pass beneath the cam plate 107 which is swung out of the way about its pivot 110, as shown by broken lines in FIGURE 12A, and the jaws will properly engage the mandrel on the bed rolls. A fixed stop 1.1 1 on the frame limits swinging of the plate in the other direction, and a stop screw 111' limits the sliding of the arm section 91 to the right in FIGURE 12A. Stop members 88' on the frame limit swinging of the arms N toward the bed rolls (FIGURE For swinging the two arms M and N, the

shafts

75 and 89 have fixed thereon the respective sprockets 112 and 113 (FIGURES 4 and 6) over which runs a chain 114 with which is associated a spring-tightening device 115. On the shaft 89 is fixedly connected a crank 116 that has a pivotal connection 117 with one end of a pitman or connecting rod 118 the other end of which is pivotally connected at 119 to a crank 120 on a stub shaft 121 which is journaled in the main frame and on which is mounted a sprocket 122. which is connected by a chain 123 to a sprocket 124 on the output shaft of an electric motor 125. With this construction, it will be seen that while the motor 125 is operating the crank 116 will be oscillated and through the chain and sprockets swing simultaneously the arms M and N alternately in opposite directions. Referring to FIGURE 4, when the crank 116 is swung clockwise, arms M and N will be swung clockwise from the core carrier into positions shown in FIGURE 12 to pick up a mandrel bearing a long core and to drop a mandrel bearing the wound rolls, respectively, and when the crank is swung counterclockwise in FIGURE 4, the arms M and N will be moved counter-clockwise in FIGURE 4 from the positions shown in FIGURE 12 toward the core carrier to feed a mandrel bearing a long core into the carrier and to grip the mandrel bearing the wound cores on the bed rolls, respectively, as shown in FIGURE 5.

A blade L for severing the web strips upon completion of the wound rolls is shown as actuated by a pneumatic device including a cylinder 126 and mounted in a guidesupport L' on the main frame and having a piston therein whose rod 127 is connected to the blade L, and mounted on the blade to move therewith is an air pipe 128 having perforations for directing jets of air against the leading ends B of the web strips as indicated at 129 in FIG- URE 10 so as to force said ends into the bight between the rider roll and the core sections H to start the winding of the strips on the respective core sections. Also, another air pipe 130 is mounted on the hanger frame G having perforations to direct jets of air against said leading ends of the strips to force them between the core and the front bed roll 1.

The invention also contemplates suitable means for assembling the long cores and mandrels and for removing the mandrels from the wound rolls to release them. FIGURES 1 and 2 illustrate a desirable means for this purpose. As shown, the mandrel bearing the wound rolls in the support 103 is withdrawn by suitable means such as a gripper 131 that has a seat to receive a collar on the mandrel and is mounted on and actuated by an endless chain 132 supported by a bed frame 136 and driven by a reversible motor 133 through speed reduction gearing 134, as shown by solid lines in FIGURE 2. The bed frame is mounted on an auxiliary frame F" for vertical movement by rollers 137 on the bed frame running on tracks 13% on the auxiliary frame. After the mandrel has been withdrawn and laid on rests in the upper reach of the conveyor chain, it is elevated by a hydraulic device 135 which lifts the bed frame 136 and the conveyor chain 132 vertically on the auxiliary frame F as shown by broken lines in FIGURE 2, the elevation continuing until the mandrel is lined up with the lowermost long core in the hopper 86, whereupon the gripper 131 is actuated in the other direction as shown by the arrow in FIGURE 2 to push the mandrel through the core and thereby mount the core on the mandrel. The gripper is then detached from the mandrel and is lowered with its conveyor to the original position shown in solid lines in FIGURE 2 ready to withdraw another mandrel from wound rolls on the support 103.

In operation of the machine, and assuming the carrier to be in normal winding position of FIGURE 7, the arm M is energized so as to swing from the position shown in FIGURE 12 to the position shown in FIG- URE 7, the

jaws

76, 77 being opened by engagement of the finger S4 with the trip member so as to place and release the mandrel in the upper seat 54 of the core carrier which with the rider roll is supported by the short rolls being wound on the bed rolls as shown in FIGURE 7. The arm N is also swung from the position shown in FIGURE 12 toward the mandrel on which the rolls are being wound, with the

jaws

92 and 93 open and positioned above and below the mandrel, respectively, in spaced relation thereto. As the winding of the rolls continues, the movable jaw is actuated into closed position by engagement of the mandrel with a lever that is rigidly connected to the pivot pin 94, as the mandrel rises incident to the increase in diameter of the roll, whereby the mandrel is gripped between the jaws.

Just before the winding of the short rolls has been completed, and with reference to FIGURE 7, rotation of the carrier clockwise is started and when the carrier has rotated a portion of its movement, the arms M and N are started to move counter-clockwise. Continued rotation of the carrier in a clockwise direction as shown in FIGURE 8 causes the mandrel with the long core to move between the rider roll and the edges of the cam plates 56 and past the core cutters as shown in FIG- URE 9, the core being caused to rotate by the rider roll and being cut into core sections H for the short rolls, the mandrel serving as a platen cooperating with the core cutting discs 65. The arm N continues to swing away from the carrier and bed rolls, counter-clockwise, so as to pull the wound rolls from between the bed rolls and the rider roll as shown in FIGURE 9. The hanger frame G and the rider roll are prevented from falling by the cam 35 as shown in FIGURE 9.

When the carrier has rotated to move the core sections into contact with the front bed roll 1, the movement of the carrier momentarily stops and the blade L is energized to cut the web strips as shown in FIGURE 10. The blade has mounted thereon the air tube 128 which blows the incoming or leading ends of the web strips between the rider roll and the core sections, and at the same time, the jets from the air tube 139 blow the ends of the web strips between the core sections and the front bed roll 1, valves (not shown) for controlling the air jets from the

tubes

128, 130 are actuated simultane? ously with the blade L to attach the strip ends to the core sections (FIGURE and immediately upon reaching its uppermost position, that is, after the web has been severed, the blade L is retracted and the air to the

tubes

128 and 130 is shut off. The carrier then starts to rotate again and the winding of the new short rolls on the core sections is started between the rider roll and the bed rolls as shown in FIGURES 11 and 12. It is essential that the arms M and N be in such timed relation to the finishing of the wound rolls, that said rolls are in contact with the rear bed roll 2 when the blade L cuts the web as shown in FIGURE 10.

The arms M and N then continue to rotate counterclockwise (FIGURE 12) to pick up a new core and mandrel from the hopper 86 and to drop the mandrel with the wound rolls on the support 193, respectively. The mandrel is extracted by the mechanism 131-134 from the wound rolls while the latter are in the support 103 and elevated on the frame F and then inserted into a new long core that is disposed at the lower or discharge end of the hopper. When the new rolls being wound have increased about 1 inch in diameter, the arm M is swung clockwise to place the mandrel and new core on the carrier and the arm N is swung clockwise into position to engage the mandrel 'on which the rolls are being wound. The cycle is then repeated.

An important feature of the machine is the coaction of the core carrier with the rider roll and the cams 56 tostart the rotation of the mandrel bearing the long core and to continue such rotation of the core as it passes the core cutters and during the starting of the winding of the ends of the web strips on the core sections H as shown in FIGURES 8, 9, 10.

Another feature is the winding of the core sections between the two bed rolls It and 2 and the rider roll and the mounting of the rider roll on the hanger frame G coaxially with the carrier so that the rider roll may contact the core sections during the attachment of the web strips to said sections, and the rider roll may then rise as the diameter of the wound rolls increases and thereby maintain a good frictional contact between the Wound rolls and the three winding rolls throughout the winding operation so as toproduce an accurately and tight-wound or hard roll.

Another important feature is the coaction of the cam 35 with the hanger frame G to prevent the rider roll and the carrier from dropping when the wound rolls are removed, as shown in FIGURE 9, and then permit the frame to swing under the weight of the rider roll and carrier so as to maintain tight winding contact between the rider roll and the rolls being wound.

It will be understood by those skilled in the art that preferably automatic control mechanism will be utilized for starting and stopping the various motors in proper timed relation to each other to effect the operations and results hereinbefore described.

Furthermore, it will be clear to those skilled in the art thatwhile the invention has been shown as embodied in certain structural details, the construction of the apparatus embodying the invention may be widely varied and changed within the spirit and scope of the invention.

I claim:

1. In a web winding machine, the combination of a main frame, two bed rolls journaled on said frame, a rider roll revolubly and vertically movably mounted on said frame above said bed rolls, means for driving said 1% rolls to wind a web on a core between the rolls, a core carrier rotatable coaxially with said rider roll and having a seat to freely releasably receive a mandrel bearing a core when the seat is facing upwardly and providing for rotation of the core relatively to the carrier, means for rotating the carrier at a substantially slower speed than said rider roll, means coacting with said carrier to hold the mandrel bearing the core against displacement from said seat with the core in frictional rolling contact with the rider roll during rotation of the carrier and for releasing the mandrel and core from the carrier in a position between the rider roll and the bed rolls, and means for Wrapping the leading end of a web on said core during such movement of the carrier at a point ahead of the point of said release of the mandrel and core.

2. In a web winding machine as defined in claim 1, said carrier having a plurality of circumferentially spaced seats, and with the addition of means for feeding in succession mandrels bearing cores from a source of supply to the carrier seats and for removing the mandrels bearing the wound rolls in succession from said bed rolls in timed relation to said feeding of the first-mentioned mandrels.

3. In a web winding machine as defined in claim 1, said means coacting with said carrier comprising cams on said frame which serve as tracks for said mandrel and means for maintaining relatively yielding engagement of said mandrel and said cams.

4. In a web winding machine as defined in claim 1, said carrier comprising an end block disposed outwardly from each end of said rider roll and having a seat block yieldingly biased radially outwardly, and cams on said frame which serve as tracks for said mandrel.

5. In a web winding machine as defined in claim 1, said carrier comprising an end block disposed outwardly from each end of the rider roll and having a seat for one end of said mandrel, a hanger frame pivo-tally mounted intermediate its ends on said main frame and said rider roll and carrier being journaled on said hanger frame adjacent one end thereof, said means coacting with said carrier comprising cams on said hanger frame, one serving as a track for each end portion of the mandrel to hold the core in contact with the rider roll.

6. In a web winding machine as defined in claim 5, each carrier end block having a plurality of seat blocks radially slidable therein, and spring means normally urging the seat blocks radially outwardly, .and means to limit such movement of the seat blocks.

7. in a web winding machine as defined in claim 1, a hanger frame pivotally mounted intermediate its ends on said main frame and having said rider roll and said carrier journaled on one end thereof providing for said vertical movement of the rider roll, and a rotatable cam on said main frame coacting with a follower on the other end of said hanger frame to limit downward movement of the rider roll and to permit free rising of the rider roll as the roll being wound increases in diameter.

8. In a web winding machine as defined in claim 1, said carrier including an end block disposed outwardly of each end of the rider roll and rotatable coaxially with the rider roll and having a seat for one end portion of a mandrel, and means for synchronously rotating said end blocks at a speed substantially less than the speed of the rider roll.

9. In a web winding machine as defined in claim 1, the addition of means for severing the web between the wound roll and the new core being wound, and said means for wrapping the leading end of the web on the core including an air pipe to direct jetsof air against the leading end of the incoming web and force said leading end into the bight between said rider roll and the core to initiate the winding of the roll.

10. In a web winding machine, the combination of a main frame, two bed rolls journaled on said frame, a rider roll revolubly and vertically movably mounted on 'said frame above said bed rolls, means for driving said rolls to wind a web on a core between the rolls, a core carrier rotatable coaXially with said rider roll at a substantially slower speed than said rider roll, and having means to receive a mandrel bearing a core providing for rotation of the core relatively to the carrier, means for rotating the carrier with the core in frictional rolling contact with the rider roll during rotation of the carrier and for releasing the mandrel and core from the carrier a position between the rider roll and the bed rolls, and means for wrapping the leading end of a web on said core during such movement of the carrier at a point ahead of the point of said release of the mandrel and core, said core with the web so wrapped thereon being rotated between said rider roll and said bed rolls to form a wound roll of said web.

11. In a web winding machine as defined in claim 10, the addition of means for severing the web between the wound roll and the new core being wound, and said means for wrapping the leading end of the web on the core including an air pipe to direct jets of air against the leading end of the incoming web and force said leading end into the bight between said rider roll and the core to initiate the winding of the roll.

12. In a web winding machine, the combination of a main frame, front and rear bed rolls journaled on said frame, a rider roll revolubly and vertically movably mounted on said frame above said bed rolls, means for driving said rolls to Wind a web on a winding device between the rolls, a Winding device carrier rotatable coaxially With said rider roll and having means receiving a winding device and providing for rotation of the winding device about its own axis relatively to the carrier, means for rotating the carrier at a substantially slower speed than the rider roll with the winding device in frictional rolling contact with the rider roll during rotation of the carrier to move the winding device first into contact with the front bed roll and then into contact with the rear bed roll While the winding device is in contact with the front roll to start winding and continue the winding of a web on the winding device, respectively, and means for wrapping the leading end of said web on said winding device, said winding device with the web so wrapped thereon being rotated between said rider roll and the bed rolls to form a complete wound roll of said web.

13. In a web winding machine as defined in claim 12, the addition of means for severing the web between the complete wound roll and the new winding device being wound, and means for in succession gripping the winding devices bearing the wound rolls during disengagement of said carrier from the winding device and moving the winding devices and the complete wound rolls thereon from the bed rolls.

14. In a web winding machine, the combination with means for supporting a supply roll of a web for unwinding, of a main frame, front and rear bed rolls journaled on said frame, a rider roll revolubly and vertically movably mounted on said frame above said bed rolls, means for driving said rolls to wind said web on a winding device between the rolls, a winding device carrier rotatable coaxially with said rider roll and having a plurality of circumferentially spaced winding device receiving means each to receive a winding device and providing for rotation of the winding device relatively to the carrier, means for feeding in succession winding devices from a source of supply to said winding device receiving means of the carrier, means for rotating the carrier at a substantially slower speed than the rider roll with the winding device in frictional rolling contact with the rider roll during rotation of the carrier to move the winding device first into contact with said front bed roll and then into contact with the rear bed roll while the winding device is in contact with the front roll to start winding and continue the winding of said web on the winding device, respectively, and then move the winding device receiving means away from the winding device, and means for wrapping the leading end of said web on said winding device during said contact of the winding device with the front bed roll, said Winding device with the web so wrapped thereon being rotated between said rider roll and said bed rolls to form a complete wound roll of said web, means for severing the web between the complete wound roll and the new winding device being wound, means for feeding in succession winding devices from a source of supply to said winding device receiving means of the carrier, and means for in succession gripping the winding devices hearing the wound rolls and moving the winding device and the complete wound rolls thereon from the bed rolls in timed relation to said means for feeding of the first-mentioned winding devices.

15. In a web winding machine, the combination of a main frame, two bed rolls journaled on said frame, a rider roll revolubly and vertically movably mounted on said frame above said bed rolls, means for driving said rolls to wind 9. web on a winding device between the rolls, a winding device carrier rotatable coaxially with said rider roll and having a seat to freely releasably receive a winding device when the seat is facing upwardly and providing for rotation of the winding device relatively to the carrier, means for rotating the carrier at a substantially slower speed than said rider roll, means coacting with said carrier to hold the winding device against displacement from said seat with the core in frictional rolling contact with the rider roll during rotation of the carrier and for releasing the winding device from-the carrier in a position between the rider roll and the bed rolls, and means for wrapping the leading end of a web on said winding device during such movement of the carrier at a point ahead of the point of said release of the winding device, said carrier comprising an end block disposed outwardly from each end :of the rider roll and having a seat for one end of said winding device, a hanger frame pivotally mounted intermediate its ends on said main frame and said rider roll and said carrier being journaled coaxially on said hanger frame adjacent one end thereof, said means coacting with the carrier comprising cams on said hanger frame one serving as a track for each end portion of said Winding device to hold the winding device in contact with the rider roll.

16. In a web winding machine, the combination of a main frame, two bed rolls journaled thereon, a rider roll, means for revolubly and vertically movably mounting said rider roll on said frame above said bed rolls, means for driving said rolls to wind a web on a core between said rolls, means for moving a mandrel bearing a core partially around said rider roll to a position between and in contact with the rider roll and said bed rolls, means for wrapping the leading end of the web on said core during such movement, said core with the web so wrapped thereon being rotated between said rider roll and said bed rolls to form a wound roll of said web, the last-named means including a carrier having a plurality of portions each to receive a mandrel and with the addition of means for feeding in succession mandrels bearings cores from a source of supply to said mandrel receiving portions and for removing the rnandrels in succession from said bed rolls in timed relation to said feeding of the first-mentioned mandrels.

References (Iited in the tile of this patent UNITED STATES PATENTS 1,951,060 Mudd Mar. 13, 1934 2,337,585 Berry et al Dec. 28, 1943 2,553,052 Kwitek May 15, 1951 2,586,833 Kohler et al Feb. 26, 1952 2,621,736 Scruggs et al Dec. 16, 1952 2,989,262 Hornbostel June 20, 1961 FOREIGN PATENTS 629,355 Germany Apr. 29, 1936 147,187 Sweden Oct-5, 1954 UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No, 3 O66 883 December 4 1962 Edward F0 Egan It is hereby certified that error appears in the above numbered patent requiring correction and that the said Letters Patent should read as corrected belowa Column 3 line ill strike out to and insert instead a comma; column Al line 29 for 'elcetric" read electric column 5 line 30 for "I" read M: H column 12 line 55 for last -named read third-maimed Signed and sealed this 5th day of May 1964,

(SEAL) Attest:

ERNEST W, SWIDER EDWARD J BRENNER Attesting Officer Commissioner of Patents