US2357976A

US2357976A - Web winding

Info

Publication number: US2357976A
Application number: US487585A
Authority: US
Inventors: Oscar C Roesen
Original assignee: Wood Newspaper Machinery Corp
Current assignee: Wood Newspaper Machinery Corp
Priority date: 1943-05-19
Filing date: 1943-05-19
Publication date: 1944-09-12
Anticipated expiration: 1961-09-12

Description

Sept. 12; 1944. o c. ROESEN WEB WINDING 2 Sheets-Sheet 1 Filed May 19, 1945 INVENTOR w; ATTORNEYS 0. C. ROESEN WEB WINDING Sept. 12, 1944.

G-llll INVENTOR flCA -M BY Fwy S ATTORNEY$ Patented Sept. 12, 1944 UNITE STATES. PATENT OFFICE Oscar C. Roesen, Scarsdale, N. Y., assignor to Wood Newspaper Machinery Corporation, Plainfleld, N. I., a corporation of Virginia Application May 19, ms, Serial No. muss Claims. (01. 242-56) This invention relates to web roll windlng'and more particularly concerns an improved method and apparatus for winding a continuously running web into successive rolls ior'subsequent use as such or in web consuming apparatus.

Large web rolls are customarily wound from"- the web issuing from a paper or other web makas the paper web running from a paper making machine, into a Succession of web rolls and to provide improved apparatus for performing this method. In particular, it is the object of the invention to provide a method and apparatus by means of which the moving web running to a roll being wound may be severed and the severed end thereof started around a roll core to start the winding of another roll without stopping or retarding the speed of traveler the web and without leaving a tail .or backfold at the point where the web in started on the new roll core. Another particular object of the invention is to provide a method and apparatus of the type described in which the operations of severing' the web and starting its end around a new roll core are governed by control actuators carfled by the web itself, and in which improved means are provided for applying control actuators andadhesive layers in properly spaced relation on'the web as it travels to the roll winding apparatus. Various additional objects and advantages of the invention will be apparent as the description of certain embodiments thereof progresses.

In describing the invention in detail, reference will be made to the accompanying drawings. in which certain embodiments thereof have been illustrated. In the drawings: v

Fig. 1 is a diagrammatic and simplified eleva-v tion of web winding apparatus embodying my invention and capable of carrying out my method;

Fig. 2 is a perspective view of a roll core used in the apparatus of Fig. 1;

Fi 3 is a sectional view of the roll core shown in Fig. 2:

vat'ion of a modified form of my Fig. 4 is an enlarged plan view of a section of the web employed in the apparatus of Fig. 1;

Fig. 5 is a diagrammatic sectional view'illustrating a scanning device of the type shown in Fig. 1; i i

Fig. 6 is a partial elevation ofthe apparatus of Fig. 1, showing a modified formoi web-carried control actuators and control actuator responslve devices;

Fig. 7 is a diagrammatic and simplified eleimproved roll winding apparatus; and

\ Fig. 8 is an enlarged plan view of a section of web used in the apparatus of Fig. 7. v

Referring particularly to Fig. 1, the web roll winding apparatus there illustrated issupplied from any desired source, such as a master roll ill, or it may issue directly from the drier section Hand calender I2 01' a paper making machine. The web 9 travels over guide rollers i2, i4, i5 and I8 and to the winding mechanism generally designated M, where it is wound in rolls.

The winding mechanism includes a reel including a stand 91 and a reel shaft l8 carrying two end spiders each having three roll arms II, 20 and 2|. Since the roll is shown in elevation, the arms of one spider only are shown. The roll arms I 9, 20 and 2|, respectively, carry roll spindles 22, M and 24 for carrying the cores of the web rolls being wound thereon. The spindles 22 carry a new core 25 in what will be termed the core replacement position, the spindles 23 carry a roll 28 being wound, and the spindles 2| carry a completely-wound roll 21 which is in position to be removed and replaced by a new core.

A set of tensioned driving belts 28 is disposed adjacent the reel. Three or more such belts may 1 be used as illustrated in Fig. 4. The belts 2|,

means therebetween.

run in contact with the cylindrical surfaces of the core 25 and the roll". the web running to the roll 2% lying between the belts and the core 25. The belts 28 pass over the idler rollers. 2|, and ii, a weighted tension roller 82 and a driving roller 33. The belts 28 are spaced apart a in accordance with conventional practice sumciently to permit movement of web severing The'driving roller 28' is driven at a speed such that the belts move at or very slightly faster than the speed at which the web 9 is delivered from the paper making machine or other source. I have illustrated a driving motor 34 which may be connected by a shaft 35 and

suitable gearing

35 and 49 to simultaneously drive the roller 33 and the calender l2.

Each arm of the reel is provided with a set of web starting belts, designated 31, 39 and 39 for the respective arms I9, 29 and 2|. Each of these comprises a series of parallel belts spaced apart axially of the web roll and carriedby a set of triangularly arranged idler rollers. p Referring to the belts 31, the

rollers

49, 4| and 42 are journaled in a frame 43 that is slidably mounted to move longitudinally of the arms l9 as by engagement of a. suitable stud on the frame in slots 44 in the arms. The rollers 4| and 42 are carried in spring pressed journals as shown so that when the belts 31 contact the cylindrical surface of the core 25, the rollers 4| and 42 retract and permit the belts to contact the core surface over a considerable arc. The starting '

belts

38 and 39 on the arms 29 and 2| that are disposed in positions other than the core replacement position are retracted as shown so that they do not contact the rolls 26 and 21 carried by these arms. This may be accomplished by sliding the frames 43 carrying these belts back Serial No. 426,557, filed January is, 1942, en-

titled Web roll replacement," now Patent N; 2,320,657, dated June 1, 1943. l

A cutting device K is suitably supported adjacent the outer surface of the web 9 just beyondblade 51 is held in its retracted position against toward the reel axis where they may be held by any suitable means.

Suitable control actuator responsive devices are provided for governing the operation of severing the web and starting the severed end thereof around a new core in response to web-carried control actuators. These devices may take the form of photoelectric scanners or electrical contacts. The photoelectric scanners'are designated as a whole as D and D and, as illustrated in Fig. 5,,ma-y include a housing 45 containing a light source 46, the light from which is columnated by a lens 41 and projected through a window 49 onto the web 9. The part of this'light beam that is specularly reflected from the web enters another window 50 and acts on a photoelectric cell 51. A relay 52 is energized and so opens its contacts 59 so long as a predetermined amount of reflected light acts on the photoelectric cell When the intensity of the reflected light is materially reduced, as by movement of a control actuator comprising a black or dark area 54 on the web 9 past the scanning device, the relay 52 is de-energized and its contacts 53 close. The scanning device may include an amplifier A for the photoelectric cell current and other known refinements, illustration of which is not necessary to an understanding of the present invention. a In the embodiment of Fig. 1, one scanning device D of the type described is disposed adjacentthe outer surfaceofthe web '9 at a point .iust beyond that where the web contacts the roll core in the core replacement position, and a second scanning device D: is disposed adjacent the cylindrical surface of the core 25 at apoint remote from its area of contact with the web 9. The device D is disposed to direct its light beam to one side of the starting belts 31, and the device D similarly directs its light beam directly onto the web 9 at some point where it is not covered by one of the driving belts 29. The devices D the bias of the spring 1| by a spring pressed latch 12 engaging a notch in the plunger, as shown, and a solenoid 13 is provided forretracting the latch 12 when energized and so permitting the spring 1| to extend the blade 51. When extended, the blade 51 severs the web 9 and carries the free end thereof into the nip between the starting belts 31 and .the roll core 25. If desired, a ledge or flange 14 may be provided adjacent the cutting edge of the blade. 51 to assist in carrying the severed end of the web into the belt nip. The solenoid 13 is connected to a 'source of energy indicated at 15 through a circuit includingthe relay contacts of the scanning deyices D and D in series, so that the blade 51 is and B may be carried by any suitable means which may comprise arms permitting movement of these devices out of the. path of the reelcarried rolls when the reel is rotated. Various forms of pivoted frames for this purpose are known, and some such'forms are illustrated in my co-pending applications, Serial No. 483,045,

' filed April 14, 1943, entitled "Web splicing? and extended only when control actuators are opposite both of the scanning devices. A handle 59 may be provided on the blade plunger 58 for retracting the same to its latched position after each web severing operation.

In accordance with the present invention, a

control actuator and a layer'of special-adhesive are simultaneously applied to certain areas of the web 9 running to the winding mechanism M. This is accomplished by adhesive applying and printing mechanisms that are relatively spaced longitudinally along the path of web travel at any convenient point. As shown, a spray nozzle 55 connected to an adhesive reservoir 491s disposed to spray a layer of adhesive on the surface of the web 9 that later contacts the roll core 25. The nozzle is actuated when air under pressure is supplied thereto by opening of the valve 59. The nozzle 55 extends laterally across the entire width of the web 9 so that adhesive is applied to the entire surface of the passing web except for a strip thereof adjacent one edge, which is protected by a shield 51.

A control actuator which may comprise a stripe of black or dark ink or" other air-drying dye or pigment is applied to-a surface of the web 9 by a printing roller 59 when the web is pressed against this roller by an impression roller 59.

the air valve 55 is opened by energization of a solenoid 59, and a push button switch 54 is'arranged to simultaneously energize the solenoids 92 and 53 from a suitable source of energy indicated by the terminals 95. Since simultaneous energization of these solenoids initiates application of both the adhesive and the control actuator, and since the actuator printing device is spaced ahead of the adhesive spray nozzle in the 2,857,978 direction of web travel, the control actuator 94 leads the adhesive bearing area 6| by a predetermined interval. This interval is made equal to the distance between the area where the web 9 engages the roll core 25 and the point where the light beam from the scanning device D' strikes the web; The control actuator "54 and adhesive area 6! each extend longitudinally of the web 9 for a distance atleast equal to the 'maxirnum circumference of the new roll core.

This may be accomplished by holding the push button 64 closed for a suitable interval, either manually or by timing means responsive to the linear travel of the web 9. The control actuator 54 and adhesive coating 9| may be dried on the web by any suitable means such as a heating chamber 66 through which the web passes.

The adhesive comprising the layer 6|, which will be hereinafter referred to as a self-sticking adhesive, is of the nature of a rubber cement. Adhesives of this type are described in detail in my co-pending application Serial No. 403,515, filed July 22, 1941, entitled Web roll changing, now Patent No. 2,320,656. As there explained, this self-sticking adhesive has the properties of adhering tenaciously to the paper or other Web when applied thereto in liquid form, but when dried does not adhere to an uncoated web surface. The dried self-sticking adhesive coatings cohere tenaciously with similar applied and dried coatings.

When the web rolls being wound are to be used in the web roll changing method described and claimed in my aforesaid co-pending application I Serial No. 403,515, the core end of the web on each roll carries a layer of the above described selfsticking adhesive on its inner surface. As explained in said application, this-core end of the web may conveniently comprise a separate sheet or websection to which the inner end of the web on the roll is spliced. A web roll of this type is illustrated in the embodimentof Figs. 1 through 6. Accordingly, the new core 25 carries a sheet or web section 16 bearing a coating of self-sticking adhesive TI on its. inner surface. The outer end of the sheet 16 is secured to the underlying layer by suitable separable means such as the centrally perforated frangible gummed tabs 18 which are of known construction and are described in detail in United States Letters Patent No. 1,996,497. The outer surface of the sheet 16 carries a layer 19 of applied and dried self-sticking adhesive on its leading end as shown in Figs. 2 and 3. A control actuator comprising a black or dark colored area 80 is provided on the outer surface of the'sheet 16 at a point so spaced from the adhesive layer 19 that the actuator 8'0 comes opposite the scanning device D when the adhesive layer 19 is in contact with the web 9 as shown in Fig. 1. The control actuator 89 is disposed at such a position that it is not obscured by the starting belts 31.

In operating the above-described embodiment of the invention, before the roll 26 being wound has reached the desired size, a roll core 25 bearing a core end sheet as describedabove is mounted on the spindles 22 and moved to the core replacement position as shown, the starting belts 31 being moved into contact with the core. Contact between the core and the web 9 accelerates the core until its peripheral velocity equals or approximates web speed. Thereafter, when the roll 26 reaches the desired size, the operator closes the push button switch 64 for a suitable interval and -so applies a control actuator 54 and anadhesive layer 8| to the web 9 running to the winding mechanism, as explained above.

' Before the adhesive layer 9| reaches the core 25, the layer 19 at the leading end of the sheet I6 on the core 25 repeatedly contacts the web 9, but

due to the explained properties of the self-sticking adhesive, this layer does not adhere' tothe web. when or "Just after, the leading edge of the adhesive layer 6| comes into contact with the sheet 16 on the core 25, the control actuator 69 moves in front of the device D and closes its relay contacts. Thereafter, as soon as the control actuator 80 on the sheet 16 moves in front of the scanning device D', indicating that the self-sticking adhesive layer I9 is in contact with the web 9, the relay contacts of the device D close, completing the energizing circuit for the solenoid l3 and so releasing the blade 61. ers the web 9 just beyond the point where it leaves the core 25 and pushes the severed end of the web into the nip between the starting belts 31 and the core. At the same time, contact between the self-sticking adhesive layers El and 19 splices the web 9 to the end of the sheet 16 on the-core. The starting belts 31 hold the leading endof the web 9 onto the core surface and the web 9 is smoothly wound on the, core as it rotates. The combined action of the severing blade and the starting belts prevents the formation of any appreciable trail- 'ing tail or backfold of the leading end of the web.

When the web is well started on the new core, the reel may be turned counterclockwise to increase the wrap of the driving belts 28 about its cylindrical surface and the winding of the roll proceeds without further attention until the new roll is substantially completed, whereupon the described core replacement operation is repeated.

It is not essential that photoelectric scanning devices be employed, and various other means responsive to the position of control actuators on the surface of the running web and new core may be employed. For example, as illustratedin Fig. 6, the control actuators 54' and 80, which correspond in location to the

actuators

54 and 80 of Fig. 1, may comprise electrically conductive layers such as stripes of metallic paint or lacquer, applied strips of metal foil, or other conductive coatings. When such conductive control actuators are used, the responsive means may take the form of a pair of electrically conductive brushes mounted adjacent each other and incontact with the'web or other surface carrying the control actuator.

As shown in Fig. 6, apair of brushes 8| is.

mounted adjacent and in contact with the running web 9 and a similar pair of brushes 92- is mounted adjacent andin contact with the core .25, the brushes 8| being aligned with the control actuator 54 on the web 9' and the brushes 82 being aligned with the control actuator 89'. The operation is the same as that describedabove in connection with the arrangement of Fig. 1, the blade 61 being released when both sets of brushes BI and 82 are electrically connected by the respective control actuators 54' and The actuator v 54' may be-applied to the moving web in the form The blade 61 sevcontinuously moving flexible webs into rolls having no core end strip or section carrying an adhesive layer, Apparatus for winding such-web rolls is diagrammatically illustrated in Figs. '7 and 8.

' nated by like reference characters with distinctive exponents.

The roll core 25" employed in the modification of Fig. '7 carries a layer or coating 88 of applied and driedself-sticking adhesive covering its entire cylindrical surface. Control actuator responsive brushes 85 or equivalentmeans are disposed adjacent the web 8" just above the point where it leaves the surface of the core 25", and these brushes cooperate with the control actuator 85 to close a circuit for energizing the electromagnet I3 and so to release the-blade 81,

ried control actuator past a point such that the adhesive is in contact with the core surface.

2. The method of transferring a moving flexible web running to a web roll being wound to a core to start'the winding 'of another web roll which comprises bringing the web running to the roll being wound into contact with the surface of I a core, applying a layer of adhesive to the web moving toward the core, applying a control actuator to the web adjacent the adhesive'layer and severing the web between the core and the roll being wound in response to movement of the con-.

trol actuator past a fixed point adjacent the core.

3.- The method of transferring a moving flexible web running to a web roll being wound to a tact with the surface of said core not engaged by sever the web 8" and push the severed end there- Y of intothe nipformed by the starting belts 31. The control actuator 85 is an electrically conductive strip, and it leads the self-sticking adhesive coating 88 by an interval equal to the distance .-between the point where the web 8 contacts the roll core and the point where it contacts the brushes 84. The self-sticking adhesive coating 88 is applied by a nozzle 55 from a reservoir 48' under control of a valve 58' operated by a solenoid 88'. A suitable conductive coating such as aluminum paint may be applied toform the control actuator 85 by the printing roller 58' when I the impression roller 58 is depressed by the solenoid 82', the paint being supplied from the reservoir 88' by the roller- 88'. The distance between the nozzle 55' and the printing cylinder 58 is equal to the above noted desired interval between the control actuator 85 and the self-stick 0 ing adhesive coating 88.

In operatingthe apparatus illustrated in Figs.

7 and 8 in accordance with my improved method,

the web, applying a; control actuator to the moving web approaching the core and, in response to movement of the controlactuator past a fixed point, severing the web between the core and 25 the roll being wound and tucking the severed end thereof between the belt and the core surface.

4. .The method of transferring a moving flexible web running to a web roll being wound to a core to start the winding of another web roll 30 which comprises bringing the web running to the roll being wound into'contact with the surface of a rotatable core, bringing a movable belt into contact with the core surface not engaged by the web, applying a layer of adhesive and a control actuator to the moving web approaching the core. severing the web between the core and the roll being wound and tucking the severed end thereof between the belt and the core when the adhesive layer contacts the core, and controlling the web severing and tucking operation by movement of the control actuator on the web pasta fixed point.

5. The method of transferring a ible web running to a web roll being wound to a core to start the winding of another web roll 5 which comprises bringing the web running to the shown in Fig. 8. 'I'he actuator 85 and layer 88' I may be dried as the'web 8" passes through the heated chamber 88. When the actuator 88 connects the brushes 84, the blade 81 is released, the web is severed and the severed end thereof wrapped around the core 25 and tucked into the nip'under the starting belts 81'. At the same time. the web 8" is spliced to the core 25" by engagement between the self-sticking adhesive layer 88 on the web and the'slmilar layer 88 on the core surface.

I claim:

1. In a method of transferring a moving flexible web running to a web roll being wound to a core to start the winding of another web roll in which the web running to the roll being wound travels in contact with the core surface and adhesive is applied to the running web to stick it roll being wound into contact with the surface of 'a rotatable core, simultaneously applying adhesive and a control actuator to the web approaching the core from points spaced along the path of travel of the web, cutting the web when the adhesive layer thereon is in contact with the surface of the core and controlling the cutting operation by movement of the control'actuator past a fixed point adjacent the core.

6. The method of transferring a moving flexible web running to a web roll being wound to a to the core, the improvement which comprises applying a control actuator to'the web adjacent the adhesive thereon and controlling the severing of the running web'between the core and the roll being wound by movement oi such web-carcore to start the winding of another web roll which comprises bringing the web running to the roll being wound into contact with the cylindrical surface of a rotatable core having a layer of selfsticking adhesive and a control actuator spaced therefrom on its cylindrical surface, simultaneously applying a self-sticking adhesive layer and a control actuator. to the web approaching the core, cutting the web when the adhesive layer thereon is in contact with the adhesive layer on the core and controlling the cutting operation by movement of the control actuators on the core and on the web past fixed points.

7. Apparatus for transferring a moving flex- -ibleweb running to a roll being wound to a core to start the winding of a new roll comprising means for rotatably supporting a roll core in contact with a moving web, means for applying a control actuator to the web approaching said of travel of the web for severing the web beyond the core and starting the severed end thereof around the core.

8. Apparatus for transferring a moving fiex ible web running to a roll being wound to a core to start the winding of a new roll comprising means for rotatably supporting a roll core in contact with a moving web, means for applying a control actuator and a layer of adhesive to the web approaching said core and means responsive to movement of said control actuator past a fixed point such that the adhesive layer is in contact with the core for severing the web beyond'the core.

9. Apparatus for transferring a moving flexible web running to a roll being Wound to a core to start the winding of a new roll comprising a roll core having a layer of self-sticking adhesive and a control actuator at circumferentially spaced points on its cylindrical surface, means for rotatably mounting said roll core with its cylindrical surface in contact with a Web running to a roll being wound, means for applying a layer of self-sticking adhesive and a control actuator to the moving web approaching said core, and means responsive to movement of said control actuators past fixed pointssuch that the two self-sticking adhesive layers are in contact for severing the web beyond the core.

10. Apparatus for transferring a moving flexible web running to a roll being wound to a core to start the winding of a new roll comprising means for rota'tablymounting 'a roll' core with its cylindrical surface in contact with a web run-' ning to a roll being wound, a movable belt engaging the cylindrical surface of said core over the area thereof not engaged by the web, and a blade adjacent the path of the web beyond the core for severing the web and tucking the severed end thereof between the cylindrical surface of the core and the belt.

11. Apparatus for transferring a moving flexible web running to a roll being wound to a core to start the winding of a new roll comprising a roll core having a layer of self-sticking adhesive covering its cylindrical surface, means for rotatably mounting said core with its cylindrical surface in contact with a web running to a roll being wound, means for applying a layer of selfsticking adhesive to the surface of the web'appreaching said core and means responsive to the movement of a distinctively marked section of said web for. severing said web beyond the core when said web-carried adhesive layer moves into contact with the cylindrical surface of said core.

12. Apparatus for transferring a moving flexible web running to a roll being wound to a core to start the winding of a new roll comprising means for applying a layer of self-sticking adhesive and a control actuator to the surface of the web approaching said core, web severing means adjacent the path of the web leavingsaid core and means responsive to the movement of saidcontrol actuator past a point such that the web-carried adhesive layer is in contact with the core surface for operating said web severing means. a

13. Apparatus for transferring a moving flexible web running to a roll being wound to a core tostart the winding of a new roll comprising a roll core having a layer of self-sticking adhesive I covering its cylindricalsurlace, means for ro-' tatably mounting said core with its cylindrical surface in contact with a web running to a roll being wound, a movable belt engaging the cylindrical surface of said core over anarea thereof not engaged by said web, a blade adjacent the path of the web beyond the coreacting when released to sever the web and tuck the severed end thereof between the core surface and said belt, means for applying a layer, of self-sticking adhesive to the surface of the web approaching said core and means responsive to movement of a distinctively marked section of said web for releasing said blade when said web-carried adhesive layer moves into contact with the core surface.

14. Apparatus for transferring a moving flexible web running to a roll being wound to a core to start the winding of a ne't'. roll comprising a roll core having a layer of self-sticking adhesiveand a control actuator at circumferentially spaced points on it cylindrical surface; means for rotatably mounting said core with its cylindrical surface in contact with a web running to a roll being wound, means fQr'applying a layer of self-sticking adhesive and a control actuator to the moving web approaching said core, a movable belt engaging the cylindrical surface of said core over an area thereof not engaged by said,

web, releasable means adjacent the path of the web leaving said core for severing the web and tucking the severed end thereof between said core and said belt when released, and means responsive to movement of said control actuators past points such that the self-sticking adhesive layers on said core and said web are in contact for releasing said releasable means.

15. Apparatus for transferring a moving flexible web running to a roll being wound to a core to start the winding of a new roll comprising a roll core having a layer of self-sticking adhesive and a control actuator at circumferentially spaced points on its cylindrical ur means for rotatably mounting said core with its cylindrical surface in contact with a web running to a roll being wound, means for applying a layer of self-sticking adhesive and a control actuator to the moving web approaching said core, a movable belt engaging the cylindrical surface of said core over an area thereof not engaged by said web, a blade adjacent the path of the web leaving said core for severing the web and tucking the severed end thereof into the nip between the core surface and said belt when said blade is operated, stationary devices located respectively adjacent the surface of said roll core and the surface of the Web and operable upon passage of a control actuator, and means responsive to the simultaneous operation of said stationary devices for actuating said blade.

OSCAR C. ROESEN.