US3202374A

US3202374A - Web winding machinery

Info

Publication number: US3202374A
Application number: US288236A
Authority: US
Inventors: Richard W Phelps
Original assignee: Black Clawson Co
Current assignee: Black Clawson Co
Priority date: 1963-06-17
Filing date: 1963-06-17
Publication date: 1965-08-24
Anticipated expiration: 1982-08-24

Description

Aug- 24, 1965 R. w. PHELPS WEB WINDING MACHINERY 4 Sheets-Sheet 1 Filed June 17, 1963 INVENTOR,

RICHARD W. PHELPS 1965 R. w. PHELPS 3,202,374

WEB WINDING MACHINERY Filed June 17, 1963 4 Sheets-Sheet 2 I2 FIG2 69 I m 53 WW] z:

INVENTOR.

RICHARD W. PHELPS Y WWW? ATTORNEYS Aug. 24, 1965 R. w. PHELPS 3,202,374

WEB WINDING MACHINERY Filed June 17, 1965 4 Sheets-Sheet 5 INVENTOR.

RICHARD W. PHELPS Y ATTORNEYS United States Patent 3,202,374 WEB WINDING MACHINERY Richard W. Phelps, Fulton, N.Y., assignor to The Blackgiiawson Company, Hamilton, ()hio, a corporation of Filed June 17, 1963, Ser. No. 288,236 12 Claims. (Cl. 242-65) The invention relates to reels for the continuous winding of paper and other web materialsv and has special relation to improvements in reels of the type shown in Evans and Staege Patent 2,703,683. i

The invention is thus directed to improvements in reels .of the type which includes a driving drum and primary arms which support the new roll core while the roll is starting thereon and in which the roll is then transferred to secondary means such as secondary ways for completion of the winding.

Among the general objectives of the invention is the provision of such a reel wherein a hard tight start is obtained at the core, i.e., when the roll has a small size such as a three-inch diameter or less.

A further object of the invention is the provision of such a reel wherein the winding of the roll is started by a drive acting in effect on the axis of the core of the new roll at a variabletorque, constant horsepower, to produce preferably a constant tension throughout the roll build-up period or at least if tension does vary at all during such period, such tension starts out at maximum value at the core and diminishes during the roll build up.

Taper tension is sometimes used and is at times desirabledepending on the stretch and slippery characteristicsof the web. Therefore different modes of drive are contemplated in order to obtain best tension control as follows:

(a) Variable, torque, constant H.P. motoras for eX- ample by a winder duty current regulated motor.

(b) A magnetic coupling type drive wherein the operator manually controls tension. 1

(c) A slip clutch arrangement off the main winder drum motor wherein regulating air is used to slip the clutch, thusvarying the torque.

All of the above three drives can also be set at some fixed torque value to obtain a very tight start and to taper off gradually as the roll builds up toa diameter ready to transfer to the secondary ways.

Among more specific objects of the invention is the provision of a reel of the above type in which the initial part of the winding operation is carried out by force applied at the axis of the .core while the roll is supported on the primary core carrying arms; in which the final and major portion of the winding operation is carried out by means of the driving drum alone while the roll is supported on the secondary means; and in which, when the roll is fully wound, it is unloaded from the reel by. movement away from the driving drum.

Another object of the invention is to provide an imis originally wound by a drive which applies a variable torque. to the center of the new roll core and in which the roll is subsequently Wound at least in part by a driving drum applying force to the surface of the roll.

Other objects, advantages and features of the invention will be apparent from the following description and the accompanying drawings, and the appended claims.

In the drawings:

FIG. 1 is a side elevational view showing a reel constructed in accordance with the invention;

FIG. 2 is a fragmentary view in end elevation of the machine shown in FIG. 1; j

FIG. 3 is a fragmentary view similar to a portion of FIG. 1 but showing one of the main support primary arms and one of the core carrying arms for the roll in the position which they assume as the roll approaches the position in which it is supported, upon the secondary means;

FIG. 4 is a fragmentary plan view of a part of the machine shown in FIG. 1 showing also some parts which are on the opposite side of the machine from that at which the viewer is looking in FIG. 1; j

FIG. 5 is a diagrammatic viewindicating some of the principal parts of the machine illustrated in FIG. 1 in the position which they assume for loading a core for a new roll prior to the Winding operation; 7

FIG. 6 is a view similar to FIG. 5 indicating the position of some of the principal elements of the machine in the position which they assume after the winding roll has been brought into contact with the driving drum;

FIG. 7 is a view similar to FIG. 5 showing the position of some of the principal parts of the machine after the roll has been moved to its position upon the secondary means or ways and while it is being driven by the driving roll;.

FIG. 8 is a diagrammatic view similar to FIGS. 5, 6 and 7, showing the position of some of the principal parts of the machine in the ready positionthat is after the roll has been transferred to the secondary means and after the core carrying arms have released the roll and have moved back to approximately the position of FIG. 5 and after the new core has been loaded in said core carrying arms and clamped therein and the core carrying arms then moved downward to the position in which the sheet material is adjacent the operating zone of the cutting means. v

FIG. 9 is a diagrammatic view similar to FIGSQS, 6, 7 and 8 showing the position of some of the principal parts of the machine after the parts are moved from the ready position to the cutting position and while the web of material is being cut and the end thereof is being moved into adhering con-tact with the core; and

FIG. 10 is adiagram of the electrical and. fluid controls.

The drawings illustrate a preferred embodiment of the invention. Referring theretofor a detailed description of the embodiment, it may be seen that the base of the reel 11 includes a front side frame 20 and a drive side frame 21 (see FIG. 2) both bolted to the floor. The frames are provided with one or more cross braces as desired. The torque shaft 22 may serve as one such cross brace. The drum 25 is supported by a shaft 26 carried in bearing assemblies such as 27 supported by the

side frames

20 and 21. I

The

frames

20 and 21 extendhorizontally for a substantial distance (i.e., to the right as shown in FIG. 1) from the driving drum 25 and are bolted to the floor and include a pair of upwardly extending stops 33'. The

portions of the

frames

20 and 21 between the drum and the stops 33 form secondary supports or ways for receiving and supporting each successive roll during the major portion of the winding operation. The upper edges of these portions of the frames form tracks 35 for supporting the bearing housings of each core shaft (such as for example the core shaft 42) of the cores 44 on which the successive rolls 45 are wound. The nip pressure between the winding. roll 45 and the drum 25 while the roll is supported vonthe secondary ways or tracks is controlled by fluid pressure cylinders actingthrough carriages which 3 slide on the base. One of the cylinders is shown in dotted lines at 46. The piston rod 47 thereof is connected to horns 48 and 49 (forming part of one of said carriages) which control the position of and the pressure onthe roll while it is supported upon the tracks 35. Further details of the above described structure are more fully explained in Evans and Staege Patent 2,703,683 referred to above. This structure last described, including the frames and 21, the tracks 35, the cylinders 46, and the

horns

48 and 49, comprises secondary means as explained in said patent for receiving the core and roll after the winding has been started, for supporting the roll While the winding is being completed and for moving said roll from contact with said drum after the roll has been completed. The drum comprises means for winding the roll of material by rotating it by force applied to the surface of the roll at substantially constant speed. The drum 25 is driven ata substantially constant speed.

' A separate means is provided for rotating the core 44, on which the web of material is to be or is being rolled, by force applied in effect at the axis of the core either (a) at asubstantially constant torque or (b) at a variable torque to start the winding of said sheet material on. said core either (a) at a relatively high tension to V obtain a smooth very tight hard start of the roll of material on the core and then to gradually taper off as the roll builds up to a larger diameter ready for transfer or (b) at a constant tension throughout the build-up period. To this end there is'provided a pair of primary main support arms (i.e., primary arms) 51 and 52 pivotally mounted on bearings so that the axis of. the pivots of the arms 51 and 52 is aligned with the axis of the shaft 26. Each of the primary arms 51 and 52 carries a core carrying arm such as the arm 53 shown pivotally mounted as at 54.0n the primary main support arm 51 at a point spaced from the axis of the primary arm. Similarly, the core carrying arm 55 is shown pivotally mounted at 56 on the primary main support arm 52. The axis 54 coincides with axis 56. The outer ends of the

core carrying arms

53 and 55 are provided with recesses such as the recess 57. Into these recesses (e.g., the recess 57) a core shaft 42 for cores 44 (on which new rolls 45 are to be wound) are placed. The primary main support arms 51 and 52 and the

core carrying arms

53 and 55 thus support the core shaft 42 and through it the cores 44 for rolls 45. The recesses (e.g., 57) thus comprise means on the

core carrying arms

53 and 55 for supporting a core 44 with the axis of the core spaced from the pivotal axis 54-56 of the

core carrying arms

53 and 55. The entire jointed arm arrangement including the primary main support arms 51 and 52 and the

core carrying arms

53 and 55 pivoted thereon are commonly referred to in the'trade as primary arms in their entirety.

The means for rotating the cores 44 to start the Winding of a roll 45 thereon includes as shown a variable torque motor 61 (FIGS. 2 and 4), a core drive shaft 62 (aligned with shaft 42 as shown in FIG. 2), driving connections between said motor 61 and said core drive shaft 62, and means for clutching the core drive shaft 62 to the core shaft 42. The motor 61 (FIG. 4) has its motor shaft 63 aligned with shaft 26. The shaft 63 carries an initial drive pulley 64. The initial drive pulley 64 is connected by a belt 65 to an intermediate griven pulley 66 mounted on a shaft 67 aligned with the pivotal mountings 5456 for the

core carrying arms

53 and 55. Also on the shaft 67 is an intermediate drive pulley 68 connected by a belt 69 to a terminal drive pulley 71 mounted on the core drive shaft 62. The core drive shaft 62 is"(as stated above) aligned with the core shaft 42 and may be clutched thereto by means of a jaw clutch 72 to drive the core shaft 42. The core drive shaft 62 may also be disconnected from core shaft 42 by the reverse operation of the clutchto disconnect the core rotating 'roll against the core 44.

means from the core so that subsequent winding of the roll may be completed solely by force applied to the surface of the roll by the driving drum 25. The shaft 62 may be moved longitudinally to connect the core drive shaft 62 to the core shaft 42 or to disconnect the two shafts. This longitudinal movement may be accomplished by means of a fluid motor 73 and an operating lever 74. The fluid motor 73 is pivotally mounted at 75 on a casting 76 which is integral with the core carrying arm 55. Also forming a part of the casting 76 is a bearing housing 77 through which a bearing for the core drive shaft 62 slides.

Means are provided to guide the Web material 80 from a suitable source of supply of such material to the roll core 44 onto which it is to be transferred. This means includes a guide roller 81 (FIG. 1) rotatable on a shaft in a fixed bearing 82 and a movable guide and pressure controlled roller 83 mounted on a pair of roller arms 84 and 85 (FIG. 2) pivoted about the axis of the shaft 26. The position of the pressure controlled roller 83 and the pressure with which it bears upon the outside of the roll of material is controlled by a pair of fluid cylinders 36 and 87. The loading of the pressure controlled roller 83 is controlled by the

cylinders

86 and 87. These cylinders have one port connected to regulate air at their ends causing the cylinder to load the pressure The other port is connected to the atmosphere rendering the cylinders single acting. An 'air value is set to cause a uniform pressure between the rubber pressure controlled roller 83 upon the winding roll at all times. The set air loading regulator may however be altered at the discretion of the operator.

Means are provided to turn the primary main support arms 51 and 52 about the axis of the shaft 26. This means comprises a motor 91 which by means of a reduction gear box and brake mechanism and by pinions or gears 92, 93 and 93a drives the

gear segments

94 and 94a. The gear segments 94 and 94:: are formed integrally with the central portions 96 of the primary support arms 51 and 52. The central portions 96 are secured in any suitable manner as for example by bolts to the outer portion 97 of said

primary support arms

51 and 53. The turning of the arms 51 and 52 around the axis of the drum 25 by the motor 91 and gears 92, 93 and 93a and the

segments

94 and 94a is commonly called indexing.

Means are also provided to turn the

core carrying arms

53 and 54 about their pivotal axes on the arms 51 and 52 in order to bring the roll of material (while it is being wound on said core by the core rotating means) into contact with the driving drum or to turn said arms in the opposite direction in order to move the

core carrying arms

53 and 54 into position to load a new core and to start winding upon said new core (and also to move the roll to the ready position and to the cutting position). This means comprises the fluid cylinders 101 and'lil2 mounted as for example, FIG. 3, at 103 on the primary support arms 51 and 52 and having their piston rods connected as at 105 and 166 to the

core carrying arms

53 and 55. v

Means are also provided for cutting the web of material (to be wound on the core to form a roll of such material) and for adhering one cutend of said web to the core. carried by arms such as arm 112 journalled on the axis 54-56 of the

core carrying arms

53 and 55. The arms 112 and the knife blade and bar 111 are actuated by the fluid cylinders 113 pivoted as at 114 on the

roller arms

84 and 85. The pistons of cylinders 113 have rods 115 connected as at 116 to arms 112.

Means are provided for locking the core in the recesses 57 and for releasing the core therefrom. This means comprises a pair of clamps 121 (one for each arm 53 and 54) pivoted on the outer ends of

core carrying arms

53 and 54 adjacent the recesses 57 and actu- This means comprises a knife blade and bar 111 ated by cylinders such as 122 pivotally mounted respectively on the

core carrying arms

53 and 54.

i In FIG. are shown the various electrical controls. Therein push

buttons

218, 219, 220, 221, 222, 223, 224, '225, 226, 227 and 228 control the various operations. The controls of the various pressure fluid cylinders are operated directly by solenoid controlled

valves

231, 232, 233, 234 and 235, these solenoid valves being operated by the electric circuits activated by the above designated push buttons. Various control relays 241, 242, 243, 244, and 245 are also provided.

Relays

241, 244 and 245 control normally closed relay control switches 251, 254 and 255 respectively.

Relays

241, 242, 243, 244 and 245 control normally open relay control switches 261, 262, 263, 264 and 265 respectively.

Switches

261, 262, 263,

264 and 265 constitute holding switches for their respective relays. Motor controls 271 and 2'72 are also provided for the control of motor 91, control 271 driving the motor 91 to turn the segment 94 counter clockwise and 272 driving the motor 91 to turn the segment 94 clockwise. The control 271 also operates normally closed relay controlled switch 256'and the control 272 also operates normally closed relay controlled switch 257. The control 272 also operates normally open relay controlled switch 266. Relay 243 also controls normally open relay switch 267. Limit switches 281, 282, 283, 284, 285 and 286 also are provided. Safety switches 291 and 292 are also pro vided.

Operation For a general description of the operation, reference is first made particularly to FIGS. 5-9 inclusive. Assuming that the reel is not operating and there is no web of sheet material on the reel, the parts are brought to approximately the position of FIG. 5 with the primary main support arms 51 and 52 in the position indicated by the primary arm 51 and

thecore carrying arms

53 and 55 in the position indicated by the core carrying arms 53. A new core 44 is placed in the recesses 57 and locked therein by operation of cylinders 122; A web of material 80 is lead from a source of supply under the guide roller 81 and over the pressure controlled roller 83 and the end then adhered to the new core 44 by any suitable means as for an example by adhesives on the new core. In this position the stripof material 80 does not contact the drum 25. The operator rotates the support arms 51 and 52 counter clockwise and rotates the

core carrying arms

53 and 55 clockwise and rotates the arms supporting the pressure roll 83 clockwise to bring the roll and the pressure roll 83 intocontact. Then the center wind drive motor 61 is started and then connected to the core shaft 42 by operation of the clutch 72. The clutch may be engaged first and the motor started afterwards, it desired, or the two may be operated substantially simultaneously. The material begins to wind on the new core 44 forming the roll 45.

The material roll 45 builds up, controlled pressure being maintained thereon by the pressure roll 83 and tension being controlled by the variable torque center wind drive from the motor 61 to maintain substantially constant tension. When the roll 45 builds up sufficiently, the operator rotates the arms 53 and further clockwise to bring the new roll 45 into contact with the surface drum 25 as shown in FIG. 6. He then starts the indexing of the primary arms and roll 45 clockwise. He then disconnects the centerwind drive by operation of the clutch 72. As the roll 45 is indexed clockwise it moves out of contact with the pressure roll 83.

If the operator fails to take the above steps, a part of them is performed automatically. When the roll reaches a diameter of about twenty inches it is brought automatically into contact with the drum 25, by reason of its increased diameter. Thereupon through controls to be described, the sector 94 is automatically turned in a clockwise direction or indexed. The roll 45 is being driven by the drum 25. In whatever manner the roll 45 may be brought into contact with the drum 25, it is then immediately automatically indexed and soon reaches the position shown in dotted lines in FIG. 7. It is then resting upon the tracks 35 and is still being driven by the drum 25 and continues to be so driven. The operator should, as soon as possible, during this indexing release the center wind drive by declutching the clutch72. When the roll reaches its position on the tracks 35, the operator opens the clamps 121 allowing the roll of material 45 to be supported by the tracks 35 entirely. He also manually operates the valve controlling the secondary slide pressure. When the material roll 45 increases in size sutl'iciently, the core shaft moves out of the recesses 57. Thereupon automatically arms 51 and 52 are turned in a counter clockwise direction to the loading position shown in FIG. 5. Meanwhile the winding of the roll 45 is continued,

the roll being supported on the tracks 35, and being driven in the winding operation by the drum 25. The support arms 51 and 52 carrying the

arms

53 and 54 having been indexed back counter clockwise to the loading position and the

core carrying arms

53 and 55 turned in a counter clockwise direction about their pivotal axis to raise them well above the drum 25, a new core is placed in the recesses 57 and clamped therein. Then the operator connects the center wind drive to the new roll by means of the clutch 72. He then causes

arms

51, 52, 53 and 5521s a whole to be indexed further counter clockwise and the

arms

53 and 55 turned clockwise to the ready position of FIG. 5. In this position the roll 45 is close to the pressure roll 83. When the roll 45 now on the tracks 35 has reached the desired size and is ready tomove automatically down the tracks 35 to the unload position as explained in patent No. 2,703,683, the operator operates the cut-off. Thereupon the new core 44 is moved against the winding strip of material and clamps the material between the core 44 andthe pressure roll 83 and the knife 111 is immediately operated automatically to cut the material and to push the cut end of the material into contact with the new core. Thus the end of the material adheres to and begins to wind up upon the new core.

Thereafter the operation is again as described above in that the material winds up on the new core, is brought into contact with the driving drum, is released from the center wind, is moved around to the secondary slides or tracks, and the clamp is opened so that the winding is completed on the tracks by the drum drive etc.

, The operation will now be described more in detail explaining the controls particularly with reference to FIG. 10. The center wind drive motor 61 is started by an appropriate control. The clamps are opened by operation of P3221 thus energizing valve SV232 and relay CR242. The new core is loaded in position in the recesses 57 and is clamped in that position by the operation of PB220. Operation of PB220 de-energizes relay CR242 and solenoid valve 232. Solenoid valve 232 controls the supply of fluid to core lock cylinder 122 allowing the core lock 121 to close. The new core is now securely clamped into position. The core drive shaft 62 is clutched to the core shaft 42 by operation of the manually controlled fluid cylinder 73 and the core shaft is driven at the proper speed. The pressure roll control button PB223 is now operated to bring the pressure roll 83 in a position close to the core 44. The operator then presses PB219 to oper ate solenoid valve SV231 to rotate the

arms

53 and 55 clockwise to bring the roll 45 into contact with pressure roll 83. The ready button PB224 is now pressed. This creates a circuit through limit switch LS283, normally closed switch DR257 and the motor drive UR271 thus causing the motor 91. to drive the

segments

94 and 94a through

gears

92, 93 and 93a in a counter clockwise direction. When the arms are moved so that the material roll 45 approaches the cut-off position, limit switch LS283 is tripped, thus breaking the circuit above described and stopping the action of the motor and applying a brake to the segment 94 and the

primary arms

51, 52, 53 and 55 and the material roll 45 supported thereby.

The material roll 45 now builds up using the pressure roll 83 as a rider to improve winding action. The operator may by operation of the buttons P8219 and P3228 and the clutch 72 as previously described move the winding roll 45 into contact with the winding drum 25, start the indexing of the primary arms and the winding roll in a clockwise direction to the secondary supports, and disconnect the center winder. If he fails, the moving of the winding roll 45 into contact by the increase in diameter thereof and the indexing is done automatically when the .diameter reaches twenty inches.

When the roll reaches twenty inches in diameter, limit switch LS285 is also tripped. This creates a circuit through normally closed PB227, safety switch S8292, limit switch LS285, limit switch LS281, normally closed relay switch UR256 and motor control DR272. This drives the segment 94 in a clockwise direction, moving the primary arms and the roll of material 45 until the roll 45 reaches the secondary slides or tracks 35. During this clockwise movement, the operator releases the center wind drive by operation of the clutch 72. When the roll 45 reaches the tracks 35, the operator operates the control of cylinder 46 so that the pressure of the roll 45 against the drum 25 and the movement of the roll 45 on the tracks 35 is controlled as described in patent No. 2,703,683. As the roll reaches the tracks 35, the limit switch LS281 is operated to break the circuit and stop the motor 91. The operator operates push button 221 which energizes relay CR242 and sole- "switch 'DR257 and motor control UR271 which drives the motor 91 to move the segment 94 in a counter clockwise direction toward the loading position shown in MG. operation of limit switch LS282 stops the movement operator pushes push button PB218 so that the core carrying .

arms

53 and 54 are raised by

cylinders

101 and 102 and so that the core is out of contact with the driving drum 25 and out of contact with the pressure roll 33. The operation of push button 218 breaks the circuit through re- .lay CR241 and solenoid valve SV231. The cylinders 101 and 162 are controlled by solenoid valve SV231. A

new core or mandrel is loaded into position. The new mandrel is now clamped into position by the operation of ,PB220 which destroys the'circuit through the solenoid valve'SV232.

When ready to make a roll change (i.e., when thevroll 45 which is on the tracks 35 has reached proper size) the center wind drive motor 61 is started so as to turn the core drive shaft 62 at core speed match, the drive shaft 62 is clutched to the new core shaft or mandrel by clutch 72, and the ready button PB224 is operated. This creates sev eral circuits. For instance a circuit is created through normally closed switch TDRZSS and relay CR244. Relay CR244 closes normally open relay switch CR264 which forms a holding circuit for the relay CR244. Relay CR244 also opens normally closed relay switch CR254 and opens the normally closed circuit through SV324.

The solenoid valve SV234 controls the knife cylinder 113 and actuation of the valve SV234 by breaking the circuit releases pressure from the side of the cylinder holding the knife 111 down so that the cylinder is vented on bothsides and when pressure is subsequently supplied to the opposite side of the cylinder, there will be no interference with the rapid movement of the knife 111 upward. PB224 also creates a circuit through limit switch LS283, normally closed relay control switch DR257 and motor control UR271 to index the primary arms further sure roll 83; As soon as the arms and the pressure roll reach this position, limit switch LS283 is broken stopping the further movement of the primary arms 51 and 52 and

core carrying arms

53 and 55. Now the machine is set up for a transfer. The web is passing over guide roll 81 over and in contact with the pressure roll 83, beneath but not in contact with the core 44 over and in contact with the drive roll 25 and over and in contact with the roll 45 on which the web 80 is being wound. The holding relay CR'244 continues the circuit through itself and through TDRZSS even though push .button PB224 may be released. The roll 45 having reached the proper size, the push button 223 is pushed to bring the pressure roll 83 upward toward the mandrel or core 44.

The cut-off button PB225 is now pressed. This creates a circuit through relay TDR245. Relay TDR245 controls normally open switch TDR265 to close that switch and hold the relay TDR245 energized for a short period of time. It also, after the delay of a short period of time, operates the relay switch TDR255 which is a time delay relay control switch and destroys the circuit through relay CR244. The cut-off push button switch PB255 also creates a circuit through limit switch LS284, normally closed relay control switch DR247, motor control UR271 to further index the primary arms counter clockwise to move the core against the web 80 as it passes over the pressure roll 83. When the roll reaches this position, limit switch LS284 is operated to break the circuit and stop the counterclockwise movement. The operation of limit switch LS284 also creates a circuit through the cut-off switch P8225, the safety switch S8291, the normally open relay switch 267, closed because the pressure roll has been moved in a position to force the material strip 8t) against the core 42, normally closed relay switch CR251 (which remains closed), and through solenoid valve SV235. The operation of solenoid valve SV235 supplies pressure fluid to the knife cylinder 113 and thus causes the knife 111 to operate swiftly. The knife thus cuts the web and pushes'the cut end thereof upwardso that the cut end is wrapped around the mandrel or core and is adhered to the mandrel or core.

The operator immediately releases the cut-off button PB225 and after a short time interval switch 255 opens, CR244 is de-energized, relay switch CR264 is opened, TDR245 is de-energized, CR245-is again closed and the knife is returned to its normal inaction position.

The roll now builds up using the pressure roll 83 as a rider roll to improve winding action. When the roll reaches twenty inches in diameter, limit switch LS285 causes. the roll to index down' to the secondary slides,

when the limit switch LS281 stops further movement.

.The operator immediately removes the center wind drive.

When the roll reaches the secondary slides, the clamp is'opened and the cycle is repeated.

While the form of apparatus herein described constitutes a preferred embodiment of the invention, it is to be understood that the invention is not limited to this precise form of apparatus, and that changes may be made therein without departing from the scope of the invention which is defined in'the appended claims.

a What is claimed is:

' 1. Apparatus for winding a web of sheet material on a core' to form a roll. of such material comprising:

means for cutting said web of material and for adhering one cut end of said material substantially instantly thereafter to said core; a driving drum; means for rotating said core by force applied about the axis thereof free of driving contact with the surface of said web and while said core is in spaced relation to said drum to start the winding of said material on said core and to obtain a smooth hard start of the roll of material on the core;

means for bringing the roll of material, while it is being wound on said core by said core rotating means, into contact with said driving drum to effect rotation of the roll of material by said driving drum; and

means for disconnecting said core rotating means from said core whereby the winding of said roll may be completed solely by force applied to the surface of the roll of material by said driving drum.

2. The structure of claim 1 in which there is provided in addition a pressure controlled roller for maintaining a substantially constant regulated pressure on the surface of the roll of material while it is being wound by said core rotating means and before it is brought into contact with said driving drum.

3. Apparatus for winding a web of sheet material on a core to form a roll of such material comprising:

driving means for initiating rotation of said core by force applied about the axis thereof to start the Winding of said sheet material on said core and to obtain a smooth hard start of the roll of material on the core; and

further driving means subsequently operable for completing the winding of said roll by rotating the roll of material by force applied to the surface of the roll of material.

4. Apparatus for winding a Web of sheet material on a core to form a roll of such sheet material comprising:

means for adhering an end of said material to said core;

first driving means including a shaft connected axially to said core and operable to rotate said core by application of force about the axis thereof to start the winding of said sheetmaterial on said core at a substantially constant tension and to obtain a smooth hard start of the roll of material on the core; and

means for completing the winding of said roll by rotating the roll of material by force applied to the surface of the roll of material at a substantially constant speed.

5. Apparatus for winding a web of sheet material on a core to form a roll of such sheet material comprising:

means for adhering an end of said material to said core;

a surface driving drum;

means for rotating said core by force applied about the axis thereof while said core is spaced from said drum to start the winding of said sheet material on said core at a substantially constant torque and to obtain a smooth hard start of the roll of material on the core;

means for moving said roll into engagement with said drum; and

6. In a reel including a rotary drum on a frame for driving successive rolls winding on cores, the combination with said rotary drum of:

a pair of spaced primary arms pivoted about the axis of said drum;

a pair of core carrying arms pivoted on each of said primary arms at a point spaced from the axis of the drum and each provided with a recess spaced from the pivot of said core carrying arms for receiving cores on which rolls are to be wound;

a clamp on each said core carrying arm adjacent said recess;

secondary means for receiving said core and roll after the winding has been started, for supporting the roll while the winding is being completed, and for moving said roll from contact with said drum after the roll has been completed;

means for operating said clamps to close them at times to secure one of said cores in said recesses I6 and to open them at other times to release said core; means to start the winding of a roll on said core while thecore is secured in said recesses;

means for turning said core carrying arms about their axes to move said roll into contact with said rotary drum; and

means for turning said primary arms about their axes to move said roll while being maintained in contact with said drum onto said secondary means where it may be released from said recess by operation of said clamp operating means to open said clamp.

7. In a reel including a rotary drum on a frame for driving successive rolls winding on cores, the combination with said rotary drum of:

a pair of spaced primary arms pivoted about the axis of said drum;

a separate core carrying arm pivoted on each of said primary arms at a point spaced from the axis of the drum and each provided with a recess spaced from the pivot of said core carrying arms for receiving cores on which rolls are to be wound;

secondary means for receiving said cores and rolls after the winding has been started, for supporting the rolls while the winding is being completed, and for moving said rolls from Contact with said drum after the windings have been completed;

means to start the winding of rolls on said cores while the cores are secured in said recesses;

means for turning said core carrying arms about their axes to move said rolls into contact with said rotary drum; and

means for turning said pn'mary arms about their axes to move said rolls While being maintained in contact with said drum onto said secondary means.

8. Apparatus for winding a web of sheet material on a core to form a roll of such sheet material comprising:

a pair of pivoted primary arms;

a pair of core carrying arms supported by and pivoted respectively on said primary arms at points spaced from the axis of said primary arms;

a motor;

clutch means on said core carrying arms driven by said motor for driving said core by force applied in effect at the axis of the core;

a surface driving drum;

primary arm drive means for indexing said arms to bring said roll into driven contact With said drum in response to the build up of said roll to a predetermined maximum diameter; and

means for thereafter disengaging said clutch means leaving said roll exclusively in driving engagement with said drum.

9. Apparatus for winding a web of material on a core to form a roll of such sheet material comprising:

a pair of spaced pivoted primary arms;

a separate core carrying arm supported by and pivoted on each said primary arm at a point spaced from the axis of each said pivoted primary arm;

means on said core carrying arms for supporting a core on a core shaft with the axis of the core shaft spaced from the pivotal axis of said core carrying arms;

a motor;

a motor driven shaft having its axis aligned with the axis of the pivot of said primary arm and carrying an initial drive pulley;

a shaft having its axis aligned with the axes of the core carrying arms and carrying a pair of interconnected pulleys one of which is an intermediate driven pulley and the other of which is an intermediate drive pulley;

a core drive shaft aligned with the axis of said core shaft and carrying a terminal driven pulley;

means for connecting said initial drive pulley to said intermediate driven pulley whereby said intermediate driven and intermediate drive pulleys are driven from said motor;

means for connecting said intermediate drive pulley to said terminal driven pulley whereby said core drive shaft is driven from said motor; and

means for clutching said core drive shaft to said core shaft.

1t). Apparatus for winding a web of material on a core to form a roll of such sheet of material comprising:

means for supporting said core;

means for adhering one end of said sheet of material to said core; a driving drum; means for rotating said core on said supporting means by force applied in effect at the axis thereof to start the winding of said sheet of material on said core at a substantially constant tension and to obtain a smooth hard start of the roll of material on the core;

means for moving the roll of material on said supporting means, while it is being wound on said core by said core rotating means, into contact with said driving drum to effect rotation of the roll of material by said driving drum; and

means for disconnecting said core rotating means from said core whereby the winding of said roll may be completed solely by force applied to the surface of the roll of material by said driving drum. 11. In a reel including a rotary drum on a frame for driving successive rolls winding on cores, the combination with said rotary drum of:

means for supporting a core spaced from said drum and for winding a web of material on said core by application of a winding force through the axis of said core;

secondary means for receiving and supporting the core 12 and the winding of material thereon after the wind ing has been started;

means effective automatically upon the building up of material on said core until it contacts said drum for indexing said core and winding of material thereon around the drum to a position in which it is supported on said secondary means.

12. In a reel including a rotary drum on a frame for driving successive rolls winding on cores, the combination with said rotary drum of:

secondary means for supporting a first core for the winding of material thereon by contact of said drum with web material wound on said core:

means for supporting a second core spaced from said drum and for rotating said core;

a pressure roll; and

means actuated manually for automatically and substantially simultaneously moving second core into contact with said web of material at a point before it is wound on said first core and said Web of material into contact with said pressure roll at a point before it is wound on said first core, for cutting said web of material intermediate said pressure roll and the drum, and for adhering the end of the web of material to the second named core.

References Cited by the Examiner UNITED STATES PATENTS 2,703,683 3/55 Evans et al 242- 3,116,031 12/63 Moore et al 242-65 FOREIGN PATENTS 956,193 1/57 Germany.

MERVIN STEIN, Primary Examiner.

Claims

3. APPARATUS FOR WINDING A WEB OF SHEET MATERIAL ON A CORE TO FORM A ROLL OF SUCH MATERIAL COMPRISING: DRIVING MEANS FOR INITIATING ROTATION OF SAID CORE BY FORCE APPLIED ABOUT THE AXIS THEREOF TO START THE WINDING OF SAID SHEET MATERIAL ON SAID CORE AND TO OBTAIN A SMOOTH HARD START OF THE ROOL OF MATERIAL ON THE CORE; AND FURTHER DRIVING MEANS SUBSEQUENTLY OPERABLE FOR COMPLETING THE WINDING OF SAID ROOL BY ROTATING THE ROLL