US2635401A

US2635401A - Machine for forming rolls from web stock

Info

Publication number: US2635401A
Application number: US89057A
Authority: US
Inventors: Wayne S Cook; Robinson John Stanley
Original assignee: Sackner Products Inc
Current assignee: Sackner Products Inc
Priority date: 1949-04-22
Filing date: 1949-04-22
Publication date: 1953-04-21
Anticipated expiration: 1970-04-21

Description

A ril 21, 1953 w. s. COOK ET' AL 2,635,401

MACHINE FOR FORMING ROLLS FROM WEB STOCK Filed April 22, 1949 4 Sheets-Sheet l April 21, 1953 W. S. COOK ET AL MACHINE FOR FORMING ROLLS FROM WEB STOCK Filed April 22, 1949 4 Sheets-Sheet 2 Apnl 21, 1953 w. s. COOK ET AL MACHINE FOR FORMING ROLLS FROM WEB STOCK Filed A rii 22, 1949 4 Sheets-Sheet I5 W. S. COOK ET AL.

MACHINE FOR FORMING ROLLS FROM WEB STOCK Filed April 22, 1949 April 21, 1953 4 Sheets-Sheet 4 Patented Apr. 21, 1953 MACHINE FOR FORMING ROLLS FROM WEB STOCK Wayne S. Cook and John Stanley Robinson,

Grand Rapids, Mich., assignor to Sackner Products, Inc., a corporation of Michigan Application April 22, 1949, Serial No. 89,057

14 Claims.

This invention relates to improvements in machine for forming rolls from web stock.

The main objects of this invention are:

First, to provide a machine well adapted for forming rolls from multiply tissue webs which is highly eflicient and of large capacity and does not fracture or rupture the webs of the material.

Second, to provide a machine having these advantages which may be easily operated by a single operator.

Third, to provide a roll forming machine suitable for forming and wrapping rolls with a small amount of manual effort and handling of the material.

Objects relating to details and economies of the invention will appear from the description to follow. The invention is pointed out in the claims.

A preferred embodiment of the invention is illustrated in the accompanying drawings, in

which:

Fig. 1 is a fragmentary side elevation of a roll forming machine embodying our invention, certain parts being shown mainly in conventional form and the adjustability of certain parts being indicated by full and dotted lines.

Fig. 2 is an enlarged fragmentary longitudinal section, certain parts being shown in retracted position by dotted lines, an ejected roll being indicated by dotted lines, and the winding belt being shown in one position by full lines and partially shown in another position by dotted lines.

Fig. 3 is a fragmentary side perspective view showing further details of the machine.

Fig. 4 is a perspective view of a completed roll with the wrapper partially opened to disclose the location of the adhesive.

Fig. 5 is a fragmentary perspective view illustrating the multiply character of the material which the machine is designed to handle.

Fig. 6 i an enlarged fragmentary longitudinal view partially in longitudinal section illustrating the use of the machine when a core is employed for the roll.

Fig. 7 is a perspective view of a roll embodying a core prior to the application of an end member to the core.

In the accompanying drawing various struc tural parts are shown conventionally and means for securing the frame and supporting parts together are not illustrated in detail as they form no part of our present invention.

The machine illustrated in the accompanying drawing comprises a base I having a frame, designated generally by the numeral 2, mounted thereon. The frame comprises uprights 3 and .4 on

which various operating parts are mounted. An auxiliary frame 5 is swingably mounted on the rear uprights 4 by means of the pivots 6 so that the auxiliary frame may be swung vertically, as indicated by dotted lines in Fig. 1, for purposes which will be apparent as the description proceeds.

An adjustable stop I limits the downward swing of the auxiliary frame and supports it in operative or winding position. The winding belt 8 is of a width corresponding to the width of the web of material or may somewhat exceed that. This winding belt is trained over the driving roller 9 mounted on the front uprights 3 of the main frame and driven through the driving chain ID to rotate counterclockwise as viewed in Fig. 2. The shaft H of the pulley 9 is provided with a suitable sprocket coacting with the chain, the sprocket not being illustrated. The shaft 12 of the coacting winding roller [3 is carried by the auxiliary frame. The belt 8 is further supported by the supporting and guiding roller 14 mounted on the rear uprights.

The belt tensioning roller [5 is carried by the arms 16 pivoted at I! on the front uprights, these arms being provided with weights l8. A dash pot i9 is .provided for the tension roller support to control or check the return after a roll has been ejected. The belt is trained over the pulleys 9 and I3 to provide a loop in the belt designated generally by the numeral 20. The rearwardly traveling reach 2| of the loop engages the top of the roller 9 while the forwardly traveling reach of the loop 22 engages the underside of the coacting winding roller l3 as is clearly shown in Fig. 2. The roller l3 also rotates in a counterclockwise direction.

The chain I0 is driven from the motor 2| mounted on the base and connected to the driving pulley 22 through a suitable transmission indicated at 23. The belt 24 connects the driving pulley 22 to the pulley 25 on the shaft 26. The driving sprocket 21 for the chain I0 is connected to the shaft 26 by means of a clutch 28 manually operated to throw the same into operation against the stress of a spring. Clutches of this type being old and common in the art, the details are not illustrated. The clutch lever 29 is operatively connected to the clutch, this lever being actuated to engaged position through the slide bar 30 supported on suitable brackets 3| and provided with a thrust plate 32 positioned to be engaged by the leg of the operator. The bar 30 is provided with a keeper 33 with which the detent 34 engages when the clutch is in engaged position.

The detent is pivoted at 35 and released by a solenoid shown conventionally at 3B. This solenoid is controlled by a switch 31 having a pivoted arm 38 carrying a roller 39 adapted to be engaged by the loop in the belt when a roll has reached a predetermined size. The main control switch for the motor and the :electrical Supply connection forthis control switch 3'! is desirably mounted on one of the front uprights in a, position convenient for the operator as is shown at 40.

Our winding machine is especially designed for winding webs of multiply tissue, best shown in Fig. 4. The tissue is very light and fragile and is arranged in superimposed multiply relation. The webs are of a width corresponding to the desired length of the roll. Material commercially known as Kimpak is an example of the material which our machine is well adapted to wind.

In practice a roll of tl'm material 4| is mounted on a spool or drum 42, is supported on the uprights 43, the shaft 44 of the spool or drum being provided with a friction wheel 45, with which the adjustable friction brake 45 .coacts. The web of material 4| to be wound is delivered to the machine through a chute 41 comprising spaced sections 48 and 49. The chute is positioned to deliver the web upon the rearwardly traveling reach of the loop .20 :as is shown in Fig. 2. The chute has inwardly turned flanges 50 which overhang the edges of the web and prevent displacement of the webo'n the chute such as might occurthe operator came into .contact with the edges .of. the web. The sections of the chute 48 and 49 'arespaced to provide an opening 50' across" which the .web extends. This opening is provided to permit the operator to sever the web when the roll has reached the desired size. The frictionmemberil on the section 49 engages ,theweb and adds some tension thereto but its main purpose .to pieverit the web from withdrawing from the section 49 of the chute when the web is severed. As the web is delivered to the rearwardly traveling reach 2] of the winding belt loop it is carried 'rearwardly. The rotation .of the roll as it is .built up within the loop of the belt pulls the web along the chute. The desired compactness in the roll may be added by regulating .the braking friction on the supply spool. The belt tensioning means also affects the compactness of the roll. As the roll increases in diameter the belt tensioning roller .is lifted.

rearwardly traveling reach of the winding belt loop and is carried thereby around the roll. The winding belt 8 is thrown into operation to wind the wrapper 54 about the roll by rearward manual operation .of the knee thrust plate 32. The spring of the clutch not shown releases the clutch upon release of the thrust plate. The chute 58 is hingedly mounted at 59 upon the swinging end of the auxiliary frame which is provided with a stop Kill limiting the downward swing of the chute. The chute may be swung out of the way for convenience in manipulation. When the roll has reached the predetermined size it engages the switch trip arm, as described,

4 thereby activating the solenoid S6 to release the detent 34 and disengage the clutch.

The auxiliary frame is provided with a handie 6| conveniently positioned to permit the operator to swing the auxiliary frame upwardly and when that is done the belt tension pulley acts on the :belt to ejectthe finished mnsz upon the feed chute as indicated by dotted lines in Fig. 2. The operator then removes the roll for packaging or otherwise as may be desired. To maintain the loop we provide a retaining member 63 which ismounted on the auxiliary frame at 64 and has a rearwardly curved lower portion 65 which is disposed concentrically relative to the pulley l3 and retainingly engages the loop in the belt. After a roll has been formed the web is rethreaded through the rear portion 48 of the chute so that its rear end engages the rearwardly moving reach of the loop. The machine is then started and operation repeated. The end plates 65 are mounted on the frame and positioned at the ends of the loop and the roll formed therein. There is, however, little tendency for the roll to become distorted or wind unevenly.

To add to the frictional engagement of the belt with the driving roller 9 we provide a press or thrust roller .61 pivotally mounted at 8 and provided with .a tension spring 59 so that the roller urges the belt upon the driven roller in ad-- vance of the loop in the belt.

In Rig. 6 we illustrate the method of winding upon a core 10 and when wound upon the core or barrel, the core is placed in the loop before the feeding of the web begins otherwise the ing is the same as described. The core in the embodiment illustrated is provided withend retaining lugs 1.! for end members or flanges, not illustrated, and it .is desirable in this embodiment that the wrapper 12 shall be of such size as to project somewhat beyond the ends of the roll. The core flanges are slipped over the projecting ends of the core and the lugs ll bent into retaining engagement therewith. This provides a structure in which the roll may be mounted on a spindle so that the material can be unwound as from a spool.

While our machine is especially designed for rolling rather fragile webs of materials, such as multiply creped cellulose tissue, it may be used for the winding of other web materials.

We have illustrated and described our invention in a highly practical embodiment thereof. We have not attempted to illustrate or describe various modifications and adaptations which we contemplate as it is believed that this disclosure will enable those skilled in the art to embody or adapt our invention as may be desired.

Having thus described our invention what we claim as new and desire to secure by Letters Patent is:

1. A winding machine of the class described comprising a main frame, an auxiliary frame movably mounted on said main frame, a winding belt driving roller mounted on said main frame, a coacting winding belt roller mounted on said auxiliary frame, a winding belt trained upon said rollers to provide a loop therebetween, side plates disposed at the edges of the loop extended from between said rollers, supporting and tensioning rollers for said belt, the tensioning roller being mounted on a weighted movable support, a dash pot controlling the return movement of said support, driving connections for said driving roller including a clutch, an automatically released detent for holding said clutch in engaged position, a control means for said detent positioned to be engaged by the loop of the winding belt'when the roll therein reaches a predetermined size, a web feed chute having overhanging side flanges disposed to guide a web of material to be wound into the loop of the winding belt between the said rollers, said feed chute having a transverse opening therein facilitating the severing of the web, a web tensioning means mounted on said feed chute in advance of said opening therein, a wrapper chute mounted on said auxiliary frame above said web feed chute to guide a wrapper to the rearwardly traveling reach of the loop in the winding belt, and a web guide and loop retaining member mounted on said auxiliary frame and having a rearwardly curved lower end projecting between the rollers when they are in winding position.

2. A winding machine of the class described comprising a main frame, an auxiliary frame movably mounted on said main frame, a winding belt driving roller mounted on said main frame, a coacting winding belt roller mounted on said auxiliary frame, a winding belt trained upon said rollers to provide a loop therebetween, side plates disposed at the edges of the loop extended from between said rollers, supporting and tensioning rollers for said belt, a web feed chute having overhanging side flanges disposed to guide a web of material to be wound into the loop of the winding belt between the said winding rollers, said feed chute having a transverse opening therein facilitating the severing of the web, a web tensioning means mounted on said feed chute in advance of said opening therein, a wrapper chute mounted on said auxiliary frame above said web feed chute to guide a wrapper to the rearwardly traveling reach of the loop in the winding belt, and a web guide and loop retaining member mounted on said auxiliary frame and having a rearwardly curved lower end projecting between the rollers when they are in winding position for forming and retaining a loop of the winding belt between said rollers and for guiding said web and wrapper onto the rearwardly traveling reach of the winding belt and into said loop of the winding belt formed and retained by said guide and loop retaining member tensioning of said belt by said supporting and tensioning rollers ejecting the wound roll from the loop of the winding belt upon movement of the winding roller on the auxiliary framefrom the winding roller on the main frame, said web guide and loop retaining member on the auxiliary frame forming, positioning and retaining a loop in the winding belt after ejection of a wound roll from the loop on the winding belt and upon movement of the winding roller and loop retaining member on the auxiliary frame toward the winding roller on the main frame.

3. A winding machine of the class described comprising a main frame, an auxiliary frame movably mounted on said main frame, an adjustable stop means for said auxiliary frame, a winding belt roller mounted on said main frame, a coacting winding belt roller mounted on said auxiliary frame, a winding belt trained upon said rollers to provide a loop therebetween, side plates disposed at the edges of the loop extended from between said rollers, supporting and tensioning rollers for said belt, driving connections for said driven roller including a clutch, a control means for said clutch including a member positioned to be engaged by the loop of the winding belt when the roll therein reaches a predetermined size, a web feed chute' disposed to guide a web of material to be wound into the loop of the winding belt between the said rollers, and a wrapper chute mounted on said auxiliary frame above said web feed chute to guide a wrapper to the rearwardly traveling reach of the loop in the winding belt, said wrapper chute being swingably supported on said auxiliary frame, and a web guide and loop retaining member mounted on the auxiliary frame and projecting between the rollers when they are in winding position.

4. A winding machine of the class described comprising a main frame, an auxiliary frame movably mounted on said main frame, an adjustable stop means for said auxiliary frame, a winding belt roller mounted on said main frame, a coacting winding belt roller mounted on said auxiliary frame, a winding belt trained upon said rollers to provide a loop therebetween, side plates disposed at the edges of the loop extended from between said rollers, supporting and tensioning rollers for said belt, a web feed chute disposed to guide a web of material to be wound into the loop of the winding belt between the said rollers, and a wrapper chute mounted on said auxiliary frame above said web feed chute to guide a wrapper to the rearwardly traveling reach of the loop in the winding belt, said wrapper chute being swingably supported on said auxiliary frame, and a web guide and loop retaining member mounted on the auxiliary frame and projecting between the rollers when they are in winding position for forming and retaining a loop of the winding belt between said rollers and for guiding said web and wrapper onto the rearwardly traveling reach of the winding belt and into said loop of the winding belt formed and retained by said guide and loop retaining mem ber tensioning of said belt by said supporting and tensioning rollers ejecting the wound roll from the loop of the winding belt upon movement of the winding roller on the auxiliary frame from the winding roller on the main frame, said web guide and loop retaining member on the auxiliary frame forming, positioning and retaining a loop in the winding belt after ejection of a wound roll from the loop on the winding belt and upon movement of the winding roller and loop retaining member on the auxiliary frame toward the winding roller on'the main frame.

5. A Winding machine of the class described comprising a main frame, an auxiliary frame movably mounted on said main frame, a winding belt roller mounted on said main frame, a coacting winding belt roller mounted on said auxiliary frame, a winding belt trained upon said rollers to provide a loop therebetween, side plates disposed at the edges of the loop extended from between said rollers, supporting and tensioning rollers for said belt, driving connections for said driven roller including a clutch, a control means for said clutch including a member positioned to be engaged by the loop of the winding belt when the roll therein reaches a predetermined size, a web feed chute disposed to guid a web of material to be wound into the loop of the winding belt between the said rollers, and a wrapper chute mounted on said auxiliary frame above said web feed chute to guide a wrapper to the rearwardly traveling reach of the loop in the winding belt, and a web guide and loop retaining member mounted on the auxiliary frame and projecting between the rollers when they are in Winding position.

6. A winding, machine of the class described comprising a main frame, an auxiliary frame movably mounted on said main frame, a winding belt roller mounted on said main frame, a coacting winding belt roller mounted on said auxiliary frame, a winding belt trained upon said rollers to provide a loop therebetween, supporting and tensioning rollers for said belt, and a web guide and loop retaining member mounted on the auxiliary frame and projecting between the rollers when they are in winding position for forming and retaining a loop of the winding belt between said rollers and for guiding said web and wrapper onto the rearwardly traveling reach of the winding belt and into said loop of the winding belt formed and retained by said guide and loop retaining member tensioning of said belt by said supporting and tensioning rollers ejecting the wound roll from the loop of the winding belt upon movement of the winding roller on the auxiliary frame from the winding roller on the main frame, said web guide and loop retainin member on the auxiliary frame formin positioning and retaining a loop in the winding belt after ejection of a wound roll from the loop on the winding belt and upon movement of the winding roller and loop retaining member on the auxiliary frame toward the winding roller on the main frame.

7. A winding machine of the class described comprising a driven winding belt, coacting supporting rollers for said winding belt, said winding belt being trained on said rollers to provide a loop therebetween, one of said rollers being supported for adjustment toward and from the other, tensioning means for said belt acting to permit the extension of the loop in the belt as the diameter of a roll being formed within the loop is increased, driving connections for said belt including a manually engageable clutch, a detent for holding said clutch in engaged position, a releasing means for said detent positioned to be engaged by the loop of the winding belt when the roll therein reaches a predetermined size, a feed chute for the material to be wound disposed to guide the material upon the rearwardly traveling reach of the loop of the winding belt, a wrapper guiding chute mounted above the material feed chute to guide a wrapper onto the rearwardly traveling reach of the loop in the winding belt, the said adjustable roller being adjustable to permit a completed roll being ejected upon the feed chute by the tension of the belt when the adjustable roller is retracted.

8. A winding machine of the class described comprising a driven winding belt, coacting supporting rollers for said winding belt, said winding belt being trained on said rollers to provide a loop therebetween, one of said rollers being supported for adjustment toward and from the other, tensioning means for said belt acting to permit the extension of the loop in the belt as the diameter of a roll being formed within the loop is increased, a feed chute for the material to be wound disposed to guide the material upon the rearwardly traveling reach of the loop of the winding belt, a wrapper guiding chute mounted above the material feed chute to guide a wrapper onto the rearwardly traveling reach of the loop in the winding belt, the said adjustable roller being adjustable to permit a completed roll being ejected upon the feed chute by the tension of the belt when the adjustable roller is retracted, and common means for supporting said adjustable roller and wrapper guiding chute to permit adjustment of the wrapper guiding chute away from said first mentioned chute upon said adjustment of said adjustable roller to permit passage of a completed roll between said first mentioned chute and said wrapper guiding chute upon ejection of the completed roll.

9. A winding machine of the class described comprising a driven winding belt, coacting supporting rollers for said winding belt, said winding belt being trained on said rollers to provide a loop therebetween, one of said rollers bein supported for adjustment toward and from the other, tensioning means for said belt acting to permit the extension of the loop in the belt as the diameter of a roll being formed within the loop is increased, and a rearwardly projecting loop retaining member mounted for adjustment with the adjustable winding roller, the said adjustable roller being adjustable to permit a completed roll being ejected upon the feed chute by the tension of the belt when the adjustable roller is retracted, said loop retaining member acting to maintain an initial material receiving loop in the belt when the adjustable roller is in advanced position adjacent said other roller, the rearward end of said loop retaining member terminating between said adjustable roller and said other roller when the adjustable roller is in said advanced position adjacent said other roller.

10. A winding machine of the class described comprising a driven winding belt, coacting supporting and driving rollers for said winding belt, said winding belt being trained on said rollers to provide a loop therebetween, one of said rollers being supported for adjustment toward and from the other to permit the ejection of a roll between the rollers when the adjustable roller is retracted, a tensioning means for said belt acting to permit the extension of the loop in the belt as the diameter of a roll within the loop is increased, a feed chute for the material to be wound disposed to guide the material upon the lower reach of the loop of the winding belt, and a rearwardly projecting loop retaining member mounted for adjustment with the adjustable winding roller and acting to form an initial receiving loop in the belt when the adjustable roller is in advanced position adjacent said other roller, the rearward end of said loop retaining member terminating between said adjustable roller and said other roller, said feed chute being disposed to guide the material between said loop retaining member and said other roller.

11. A winding machine of the class described comprising a driven winding belt, coacting supporting and driving rollers for said winding belt, said winding belt being trained on said rollers to provide a loop therebetween, one of said rollers being supported for adjustment toward and from the other to permit the ejection of a roll between the rollers when the adjustable roller is retracted, a tensioning means for said belt acting to permit the extension of the loop in the belt as the diameter of a roll within the loop is increased, side plates disposed at the edges of the loop in the belt, a feed chute for the material to be wound disposed to guide the material upon the lower reach of the loop of the winding belt, a wrapper guiding chute disposed above the material feed chute to guide a wrapping sheet onto the rearwardly traveling reach or the loop in the winding belt, and a rearwardly projecting loop retaining member mounted for adjustment with the adjustable winding roller and acting to form an initial receiving loop in the belt when the adjustable roller is in advanced position adjacent said other roller, the rearward end of said loop retaining member terminating between said adjustable roller and said other roller when the adjustable roller is in said advanced position adjacent said other roller.

12. A winding machine of the class described comprising a driven winding belt, coacting supporting and driving rollers for said winding belt, said winding belt being trained on said rollers to provide a loop therebetween, one of said rollers being supported for adjustment toward and from the other to permit the ejection of a roll between the rollers when the adjustable roller is retracted, a tensioning means for said belt acting to permit the extension of the loop in the belt as the diameter of a roll within the loop is increased, and a rearwardly projecting loop retaining member mounted for adjustment with the adjustable winding roller and acting to form an initial receiving loop in the belt when the adjustable roller is in advanced position adjacent said other roller, the rear end of said loop retaining member being disposed forwardly a plane disposed tangent to the rear sides of said adjustable roller and said other roller.

13. A winding machine of the class described comprising a driven winding belt, coacting supporting and driving rollers for said winding belt, said winding belt being trained on said rollers to provide a loop therebetween, one of said rollers being supported for adjustment toward and from the other to permit the ejection of a roll between the rollers when the adjustable roller is retracted, a tensioning means for said belt acting to permit the extension of the loop in the belt as the diameter of a roll within the loop is increased, and a loop retaining member projecting from a position forward of to a position between said rollers and acting to form an initial receiving loop in the belt and retain said loop between said rollers when the adjustable roller is in advanced position adjacent said other uoller, said loop retaining member acting to form said loop against the tension of the belt produced by said tensioning means.

14. A winding machine of the class described comprising a driven winding belt, coasting supporting rollers for said winding belt, said winding belt being trained on said rollers to provide a loop therebetween, one of said rollers being supported for adjustment toward and from the other, a tensioning means for said belt acting to permit the extension of the loop in the belt as the diameter of a roll within the loop is increased, a feed chute for the material to be wound disposed to guide the material upon the rearwardly traveling reach of the loop of the winding belt, and a wrapper guide positioned to guide a wrapper onto the rearwardly traveling reach of the loop in the winding belt, and common means for supporting said adjustable roller and said wrapper guide for moving said adjustable roller and wrapper guide away from said feed chute and other roller to permit ejection of the completed roll from said loop and between said rollers and between said wrapper guide and feed chute.

WAYNE S. COOK. JOHN STANLEY ROBINSON.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 553,045 Sullivan Jan. 14, 1896 999,352 Waring Aug. 1, 1911 1,006,009 Sargent Oct. 17, 1911 1,400,827 Leumann Dec, 20, 1921 1,445,022 Kimball Feb. 13, 1923 1,601,784 Wanders Oct. 5, 1926 1,642,681 Kaplan Sept. 20, 1927 1,714,816 Proctor May 28, 1929 2,144,264 McRae et al Jan. 17, 1939 2,353,821 Fourness et a1 July 18, 1944