US3329368A - Web winding machine - Google Patents

Description

y l967 E. A. MASTRIANI 3,329,368

WEB WINDING MACHINE Filed Oct. 28, 1964 5 Sheets-Sheet l NVENTO ATTORN 5 Sheets-Sheet 2 Filed Oct. 28, 1964 INVENTOR. E. 4. MASTR/A/V/ A TTOR/VE V 1 E. A. MASTRIANI WEB WINDING MACHINE Jul 4, 1967 5 Sheets-Sheet 3 Filed Oct. 28, 1964 INVENTOR. E. A. MASTR/A/V/ ATTORNEY 1 E. A MASTRIANI WEB WI M 4, we?

NDING MACHINE 5 Sheets-Sheet 4 Filed Oct. 28, 1964 INVENTOR E. A. MAsTR/A/v/ ATTORNEY E. A. MASTRIANI WEB 'WINDING MACHINE 5 Sheets-Sheet 5 Filed Oct. 28, 1964 INVENTOR, E. A. MAS'TR/A/V/ ATTORNEY United States Patent 3,329,368 WEB WINDING MACHINE Elvin A. Mastriani, Cedar Grove, N..I., assignor to Arrow Converting Equipment Inc, Newark, N.J., a corporation of New Jersey Filed Oct. 28, 1964, Ser. No. 467,018 18 Claims. (Cl. 24256.2)

ABSTRACT OF THE DISCLOSURE In a machine for winding web of material around an assembly of a platen and a layon roll and onto a rewind roll, the layon roll being maintained in intermediate engagement with the platen and the rewind roll, means for automatically adjusting the position of the axis of the rewind roll relative to the position of the layon roll, responsive to variations in diameter of the rewind roll; the adjusting means being responsive to means engageable with the layon roll and sensing changes in the diameter of the rewind roll, to correspondingly constantly adjust the position of the rewind roll to the extent required.

This invention relates to a machine for rewinding webs of material from a source around an intermediate roll and onto a rewind roll. The latter increases in diameter progressively, presenting a problem in the rewinding procedure. If allowance is made for variations in diameter of the rewind roll by spacing the layon or other roll therefrom a sufiicient distance to allow for the increase in diameter of the rewind roll, there will be a substantial gap and thus an unsupported web between the layon roll or platen and the rewind roll. This situation is highly undesirable as the unsupported web tends to slope and wander from side to side, due to initial strains in the material, which are released when stretched.

The webs also have a tendency to entrap air, especially where wider widths of material are used; the air acts as a lubricant and the layers shift.

Pursuant to the present invention, the gap between the roll from which the material is wound unto the takeup roll, is eliminated and the layon roll around which the material is wound onto the takeup roll, is maintained in constant tangential pressing contact with the takeup roll,

squeezing out any air which would become entrapped in conventional practice.

Pursuant to the invention, novel means are provided for automatically adjusting the relative axes of the takeup roll and layon roll and for maintaining constant tangential squeezing contact between the layon roll and the takeup roll, and constantly automatically adjusting the relative positions of the axes of said rolls to compensate for variations in diameter of the takeup roll without lessening the constant pressure of the layon roll tangentially thereon, as above noted.

Pursuant to the invention, the rewind roll is journalled on an axis movable responsive to a sensor arm, which in turn is responsive to the position of the layon roll. The latter is urged under tension into tangential contact with the rewind roll and moves responsive to variations in diameter of the latter, in turn moving a sensing arm, which thereby actuates a mechanism for automatically altering the relative positions of the axes of the layon roll and the takeup roll, to compensate for the variations in diameter of the takeup roll.

In practice, pursuant to the invention movement of the sensing arm is of an infinitesimal order, reciprocating to effect movement of the takeup roll relative to the layon roll to only the varying minute extent required to compensate for particlar variations in diameter, immediately moving the rewind roll relative to the layon roll. Thus,

3,329,368 Patented July 4, 1967 constant minor shifts are achieved and constant pressure is exerted by the layon roll against the rewind roll, without danger of either a wedging action or substantial unsupported web conditions occurring.

Pursuant to the invention the layon roll is movably urged under tension against the rewind roll, eliminating any gap in the passages of the web material from the layon roll onto the rewind roll and squeezing the roll to prevent web shifting and air entrapment. Movement of the web material is thus achieved as an essentially continuous, uninterrupted and smooth movement from the layon roll onto the rewind roll under the tension exerted by the layon roll, eliminating the disadvantages inherent in conventional procedures, including those above noted.

In the exemplifying description below, in connection with a machine embodying the invention, an assembly is shown and described wherein the web material passes from a platen roll, around a layon roll and onto the rewind roll. The rewind roll and layon roll constituean assembly, the layon roll being disposed intermediate and tangentially pressing the platen and rewind roll, the layon roll being movable in a plane at an angle to a line drawn through the axes of the platen and rewind roll,

automatically maintaining constant pressure as above noted so that the web material will not have any unsupported gap in passage from the platen roll around the layon roll and onto the rewind roll.

From the foregoing, it will be appreciated that the web rewinding machine of this invention incorporates a number of novel features useful in rewinding material in many fields, as for example (but without limitation thereto) in rewinding webs slit from a source onto one or more rewind rolls as illustrated in the drawings.

The drawings, illustrating procedures and devices useful in carrying out the invention, and the description below, are exemplary only of the invention, which shall be deemed to cover all other devices and procedures coming within the scope and purview of the appended claims.

In the drawings, wherein similar reference characters indicate like parts:

FIG. 1 is a fragmentary vertical elevational view, partly sectional, of a web rewinding machine embodying my invention,

FIG. 2 is a schematic elevational view of parts thereof,

FIG. 3 is a vertical end elevational view thereof,

FIG. 4 is a schematic fragmentary perspective view of parts thereof, 1

FIG. 5 is a schematic layout for a sensing means including a sensing valve and associated parts, which may be used in carrying out the invention,

FIG. 6 is a fragmentary perspective schematic view of the sensing arm and layon roll engaged and sensed there by and a valve actuated responsive to movement of the sensing arm,

FIG. 7 is a fragmentary, partly broken, top plan view of the machine,

FIG. 8 is a fragmentary vertical elevational, partly sectional view of parts of the machine,

FIG. 9 is an end elevational view of corresponding parts shown in FIG. 8, and

FIG. 10 is a schematic view illustrating the direct, gapfree path of the web in a machine embodying my invention, from the layon roll to the rewind roll.

As shown in FIGS. l3, a web rewinding machine 10 embodying the invention, is provided with means such as a bell crank 11 pivoted as at 12 on the machine for thus movably supporting the web rewind roll 13 on an axis 14 at one end of the bell crank. The web of material 15 (FIGS. 1 and 10) is drawn from a source around platen 16, which may be driven by any suitable means, and thence around the layon roll 17 and onto rewind roll 13, without any intervening unsupported web gaps.

Layon roll 17 is carried (FIGS. 1, 7) by link 21, preferably pivotally connected to spring bar 22 which, in turn, is connected to the machine or to a slide bar 19 thereon. Thus the layon roll 17 presses, under constant tension, a'gainstthe platen 16 and rewind roll 13, and web 15 moves in a continuous path .(FIG. without intervening gaps and under squeezing pressure from the platen 16 onto the rewind roll 13. The web may be a film, sheet or other surface material, and may be of any desired composition and width-for example, it may originate as (FIGS. 1, 10) a source sheet 15 of greater than the width desired, in which case suitable cutter means 23 may be provided for, cutting the web 15 to the desired final widths. Said cutter means may be of any desired type and may comprise (FIG. 1) blades 23 carried by a cutter mechanism, schematically illustrated at 24 to indicate any desired or convenient cutter device, which may be actuated through an air or other power line 25 connected with a valve or pump 26, provided with suitable controls.

It will be apparent, from a consideration of FIGS. 1 and 10 that the tangential pressure of layon roll 17 against the platen and web rewind rolls 16 and 13 assures constant movement of the web material from the platen around the layon roll and onto the rewind roll 13 under squeezing pressure and without unsupported gaps. The link 21 and spring plate 22 mounting for the lay roll 17 enables the latter to move in an essentially universal manner to adjust itself to positions intermediate the layon roll and web rewind roll, and while exerting constant pressure.

Thus pursuant to the invention, the layon roll maintains constant tangential contact with the platen 16 and the web rewind roll 13 while under tension, and in a plane (FIG. 3) at right angles to a plane 28 through the axes of the web rewind roll 13 and the platen 16.

As above noted, and shown in the drawings, pursuant to the invention, means are provided for automatically adjusting the position of the axis of the rewind roll 13 relative to the position of the layon roll, responsive to variations in diameter of the rewind roll 13. The sensing means, responsive to changes in'diameter of the rewind roll, correspondingly constantly adjust the position of the layon roll 17 to the extent required. As exemplified in the drawings (FIGS. 1, 6, 5) the sensing means may comprise an arrangement of sensors such as sensing arm 31 which may be pivotally mounted on a support 32 connected with an actuator stem 33 of valve 34 or other mechanism controlling reciprocation of (FIGS. 3, 5) piston 35 connected as at 36, 37, to links 38, 55. Link 38 is pivotally connected as at 39 to the bell crank 11 on which the web rewind roll 13 is rotatably mounted. Thus, movement of the sensing arm 31 causes corresponding move ment of piston 35 and thereby (through link 38 and bell crank 11) corresponding movement of the relative position of the rewind roll 13 and the layon roll 17.

The .piston 35.may be controlled by a valve 34 (FIG. 5) in any suitable power source system, such as bydraulic, pneumatic, electrical or other source, thus 'actuated responsive to reciprocation of the sensing arm 31 as indicated by the arrow 40 (FIG. 5) correspondingly actuating the valve control 33. In FIG. 5 a hydraulic arrangement is shown, by way of example, having a sensitive four way valve; increase in diameter of web rewind roll 13 will (through sensor31) rotate valve stem 33, which (in the FIG. 5 example) controls the direction of oil flow in lines 41 and 42 through cylinder 43 and thus controls reciprocal movement of piston 35. The piston in turn, as above noted, actuates the linkage 38' for moving the web 13 relative to the layon roll 17. The actual extent of movement is very slight and if greater than required, is immediately corrected by causing a reverse procedure to occur to compensate therefor; in practice such constant small movements assure a constant state of relative uniformity in positioning of rolls 13 to 17 to 16. Thus the position of the rewind roll 13 is constantly adjusted to assure a continued constant pressure of the layon roll 17 thereagainst and the smooth flow of web material under squeezing pressure from the layon roll 17 onto the rewind roll 13.

A suitable source 44 (FIG. 5) may be provide for the power source such as fluid, to be used, with a gauge 45, pressure valve 46 and other control and monitoring accessories 47, 48. Suitable controls may be provided, such as a four way solenoid valve 49 for the automatic operation of the system normally and manual control 50 for manual control and resetting, Where desired.

The invention above exemplarily described, may be used in connection with more than one rewind roll (FIGS. 4, 7). Further rewind rolls 53 may be provided and layon rolls 51, mounted on a link 21' connected by spring plate 22' to bar 19' slidably disposed on a rail 20. The second layon roll (around which, the web C moves onto rewind roll as web D) is (FIG. 4) positioned intermediate platen 16 and the second rewind roll 53 and the latter (FIG. 3) mounted on a bell crank 52 pivoted as at 54 on the machine 10 and connected as at 70 to link 55 and pivot pin 37, with the piston 35. In this arrangement, as shown in FIG. 3, movement of the piston 35 on actuation of the valve responsive to movement of the sensing arm 31 moves both web rewind rolls 13 and 53 relative to the layon rolls 17 and 51 and which in turn are tangential to platen 16. This arrangement will be particularly desirable where, for example, a web 15 (FIG. 4) is cut into several distinct webs A, B, E, F of smaller width. The sensing arm 31, earing against one of the layon rolls such as 13, will provide effectual control for moving all rewind rolls, as above noted. As shown in FIG. 4, rewind roll 13 (or 53) may be a single roll or a plurality of rolls mounted on the same axis or shaft 14.

Any suitable means may be used for mounting the rewind rolls on their shafts, as for example (FIGS. 8, 9) by providing a fork 56 pivoted at one end 57 on the machine, a pressure means 65 hearing against the fork 56 and pressing on assembly of clutch collars and spacers 58, 59, 60 of any desired or convenient form, for the rewind rolls, against a fixed collar 61 on the shaft 14 so as to allow slight slippage of the rewind rolls on the supporting shaft for any desired or conventional clutch effect. A suitable housing 62 (FIG. 3) may be provided, mounted on the machine 10 by any suitable means 64, to receive slide 63 fixed to piston 35 and connected to arms 55, 38, as at 36, 37 as above noted. Any suitable drive mechanism may be provided for the rewind rolls 13, 53, such as schematically indicated -at 29', 30, 65, 66 (FIG. 1).

While the foregoing disclosure of exemplary embodiments is made in accordance with the patent statutes, it is to be understood that the invention is not limited thereto or thereby, the inventive scope being defined in the appended claims.

The invention claimed is:

1. In a machine for winding a web of material from a source of supply around an assembly of a platen and a layon roll and onto a rewind roll, means disposing the layon roll in intermediate engagement with the platen and rewind roll, sensing means positioned in the machine and engageable with one of the elements of the assembly to sense changes in the assembly due to variations in the rewind roll diameter, and means connected with the sensing means and the rewind roll responsive to the sensing means, to, correspondingly change the relative position of the layon and rewind rolls and maintain the layon roll in intermediate engagement with the platen and rewind roll.

2. In a web winding machine as set forth in claim 1, wherein the means disposing the layon roll in intermediate engagement with the platen and rewind roll includes pressure means.

3. In a webwinding machine as set forth in claim 1, wherein the means so disposing the layon roll in intermediate engagement with the platen and rewind roll includes spring means.

4. In a web winding machine as set forth in claim 1, means movably mounting said rewind roll in said machine relative to the platen and thereby relative to the layon roll.

5. In a web winding machine as set forth in claim 1, said layon roll being so disposed in the machine on an axis offset from a line passing through the axes of said rewind roll and platen.

6. In a web winding machine as set forth in claim 5, means mounting said layon roll in said machine for movement in a plane at an angle to said line and into said intermediate engagement with the platen and rewind roll.

7. In a web winding machine as set forth in claim 1, means mounting the rewind roll in the machine movably relative to the platen, and means intermediate the sensing means and rewind roll mounting means, actuated by the sensing means responsive to changes in diameter of the rewind roll, for moving the rewind roll relative to the platen, to adjust to changes in diameter of the rewind roll and thereby provide continued engagement of the layon roll intermediate the rewind roll and platen notwithstanding such changes in diameter.

8. In a web winding machine as set forth in claim 1, said sensing means including an arm contacting said rewind roll and layon roll assembly and movable on movement of the assembly responsive to said changes in the assembly due to variations in the rewind roll diameter, means movably mounting the rewind roll in the machine relative to the platen, and linkage means connected to the sensing means and to the means movably mounting the rewind roll in the machine, moving the rewind roll relative to the platen on movement of the sensing means arm.

9. In a web winding machine as set forth in claim 8, said linkage means including a piston disposed in the machine for axial movement, means for moving the piston in accordance with the movements of said arm, and means connecting said piston with said linkage means, to thereby so move the latter responsive to movement of the sensing arm, thus moving the rewind roll.

10. In a web winding machine as set forth in claim 8, said means movably mounting the rewind roll comprising a bell crank journalled on the machine, said rewind roll journalled in one end of the bell crank and said linkage means connected to the other end of the bell crank.

11. In a web winding machine as set forth in claim 10, a second rewind roll mounted in said machine, and a second layon roll disposed in intermediate engagement with the platen and second rewind roll.

12. In a web winding machine as set forth in claim 11, a second bell crank journalled in the machine, said second rewind roll journalled in the second bell crank at one end thereof and thus mounted in the machine, and a second linkage means connected to the other end of the bell crank and to said sensing means.

13. In a web winding machine as set forth in claim 11, said second rewind roll being disposed in offset relation to a line drawn through the axes of the platen and first rewind roll.

14. In a web winding machine as set forth in claim 12, said linkage means including a piston disposed in the machine for axial movement, means for moving the piston in accordance with the movements of said arm, and means connecting said piston with said linkage means, to thereby so move the latter responsive to movement of the sensing arm, thus moving the rewind roll.

15. In a web winding machine as set forth in claim 1, cutters positioned in said machine for movement against the web in its passage from the source and around the platen roll, to cut the web.

16. In a web winding machine as set forth in claim 1, a slide bar movable in the machine in a plane parallel to the axis of the platen roll, and means movably connecting the layon roll to said slide bar.

17. In a web winding machine as set forth in claim 16, said means movably connecting the layon roll to said slide bar being spring means.

18. In a web winding machine as set forth in claim 1, a spring plate mounted in 'a machine and a link connecting said spring plate with the layon roll to so dispose the layon roll in intermediate engagement with the platen and rewind roll.

References Cited UNITED STATES PATENTS 2,196,000 4/ 1940' Richardson 242- 2,711,861 6/ 1955 Heygel et al. 24265 3,188,016 6/ 1965' Aaron 24265 FRANK J. COHEN, Primary Examiner.

G. F. MAUTZ, Assistant Examiner.

Claims (1)

1. IN A MACHINE FOR WINDING A WEB OF MATERIAL FROM A SOURCE OF SUPPLY AROUND AN ASSEMBLY OF A PLATEN AND A LAYON ROLL AND ONTO A REWIND ROLL, MEANS DISPOSING THE LAYON ROLL IN INTERMEDIATE ENGAGEMENT WITH THE PLATEN AND REWIND ROLL, SENSING MEANS POSITIONED IN THE MACHINE AND ENGAGEABLE WITH ONE OF THE ELEMENTS OF THE ASSEMBLY TO SENSE CHANGES IN THE ASSEMBLY DUE TO VARIATIONS IN THE REWIND ROLL DIAMETER, AND MEANS CONNECTED WITH THE SENSING MEANS AND THE REWIND ROLL RESPONSIVE TO THE SENSING MEANS, TO, CORRESPONDINGLY CHANGE THE RELATIVE POSITION OF THE LAYON AND REWIND ROLLS AND MAINTAIN THE LAYON ROLL IN INTERMEDIATE ENGAGEMENT WITH THE PLATEN AND REWIND ROLL.

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