CA1100028A - Method and apparatus for wrapping paper rolls - Google Patents
Method and apparatus for wrapping paper rollsInfo
- Publication number
- CA1100028A CA1100028A CA309,973A CA309973A CA1100028A CA 1100028 A CA1100028 A CA 1100028A CA 309973 A CA309973 A CA 309973A CA 1100028 A CA1100028 A CA 1100028A
- Authority
- CA
- Canada
- Prior art keywords
- reel
- face
- sheet
- header
- wrapping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B25/00—Packaging other articles presenting special problems
- B65B25/14—Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form
- B65B25/146—Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form packaging rolled-up articles
- B65B25/148—Jumbo paper rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B49/00—Devices for folding or bending wrappers around contents
- B65B49/06—Resilient folders, e.g. brushes, diaphragms
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packaging Of Special Articles (AREA)
Abstract
METHOD AND APPARATUS FOR WRAPPING PAPER ROLLS
Abstract of the Disclosure Large mill reels of paper are protectively wrapped for shipment by a head capping method which folds an oversized header sheet simultaneously over the entire circular edge of a reel end-face with a volumetrically expansible, elastomer toroid. Closely spaced pleats in the header sheet excess material are simultaneously formed with the edge fold and are creased and pressed into a band of adhesive around the reel circumference. Subsequently, a cylindrical surface wrap is applied around the reel girth overlapping the header pleats and adhesively secured thereto. Since the head capping step does not require rotation of a reel, the capping and surface wrapping operations may be physically separated thereby accelerating reel wrapping production.
Abstract of the Disclosure Large mill reels of paper are protectively wrapped for shipment by a head capping method which folds an oversized header sheet simultaneously over the entire circular edge of a reel end-face with a volumetrically expansible, elastomer toroid. Closely spaced pleats in the header sheet excess material are simultaneously formed with the edge fold and are creased and pressed into a band of adhesive around the reel circumference. Subsequently, a cylindrical surface wrap is applied around the reel girth overlapping the header pleats and adhesively secured thereto. Since the head capping step does not require rotation of a reel, the capping and surface wrapping operations may be physically separated thereby accelerating reel wrapping production.
Description
liO~Q28 The present invention relates to the art of packaging or protective wrapping large diameter reels of paper for trans-port.
The finished product of the papermaking process is a continously issued web approximately twenty feet (6 meters) wide. For shipment to customers and converters, the web is slit into a multiplicity of more manageable widths and wound into cylindrical reels or rolls of normally three to six feet in diameter. Shipment weights of such rolls may range from 1700 to 9200 pounds.
To protect such finished reels of paper from handling and shipment damage, the usual industry practice is to wrap the rolls with a heavy grade of paperboard of greater than 0.009 inch thickness caliper and normally 0.020 inch to 0.024 inch caliper.
The presently prevailing technique for such roll wrapping is to draw a strip of wrapping board from a supply reel o greater axial length than the roll to be protected.
This web strip is wrapped tightly about the cylindrical surface of the protected roll. The axially overhanging portion is crimped radially inward toward the roll center and tightly creased against circular roll end. To seal the roll ends and hold the crimps down against the end faces, two circular header disks of approximately the same diameter as the protected roll are used at each roll end-face. One disk is inserted within the surface wrap overhang flush against the roll end-face.
Adhesive is then applied to the outer face of this first or inner disk. Next, the overhanging portion of the surface wrap is crimped and pleated into the inner disk adhesive. There-after, a second or outer disk having adhesive applied to theinner face thereof is pressed against the outer face of the surface wrap pleats. ~
~lO~Q2B
U.S. Patent Numbers 3,924,375; 3,828,523; 3,633,335;
3,577,703; 2,893,191; and 2,644,282 disclose numerous methods and apparatus to mechanize the aforedescribed wrapping technique.
U.S. Patent 3,924,375 describes an apparatus for incrementally pleating the overhanging portion of an over-hanging, cylindrical surface wrapping sheet onto against the roll end-face.
U.S. Patent 3,828,523 describes an apparatus for holding an inner roll disk header in place while the over-hanging portion of a surface wrapping sheet is incrementally folded over the end corner and pleats formed against the roll end-face.
V.S. Patent 3,633,335 describes a rotating star-wheel apparatus for incrementally folding the overhang of a surface wrapping sheet over a roll end corner into a follower roll to be pleated and creased against the roll end-face.
U.S. Patent 3,577,703 describes a rotating cylinder having a helical groove cut into the surface thereof for incrementally folding the overhanging portion of a surface wrapping sheet over the roll end-edge and creasing the result-ing pleat against the roll end-face.
U.S. Patent 2,893,191 describes a rotating disk apparatus for incrementally folding the overhanging portion of a surface wrapping sheet over the roll end-edge and creasing the resulting pleat against the roll end-face.
U.S. Patent 2,644,282 describes an apparatus for incrementally folding the overhanging portion of surface wrapping sheet over the roll end-edge and creasing the result-ing pleat against the roll end-face by rolling the roll along ~lO~Q28 a floor line with a surface drive belt applied to the upper -~
tangent of the roll. The folding and pleating device is secured to the floor along the roll line and the roll end-face is pressed thereagainst.
Common to all such prior art apparatus and character-istic of the wrapping method in general is the need for circular usually die cut, header disks of substantially the same ~
diameter as the roll. If several different diameter sizes are `-prepared for shipment by the producing mill, it is necessary to make or purchase and store such respectively sized header disks preparatory to use.
Moreover, the mere need of several sizes of header disks creates a material handling obstacle at a roll wrapping station where several different roll sizes are wrapped in mixed succession. As the roll is circumferentially wrapped, the operator must select the proper disk size and manually place it against the roll end face within the overhanging flange of -~
wrapping material that is to serve as the crimped pleats.
Although these tasks are neither difficult nor excessively time consuming under relaxed conditions, in many cases the papermachine produces more rapidly than the product can be wrapped, even with the aid of semiautomatic equipment suGh as that disclosed above.
James Arnold Morgan has taught a method of first applying a band of adhesive, either glue or double-faced tape, around the roll circumference at both axial ends thereof. Next a header disk having a diameter greater than the subject roll is positioned against the respective roll end faces and crimped into the adhesive band with the crimp pleats lying against and around the circumferential surface of the roll. Finally, a 1100~28 circumferential wrap of approximately the same axial length as the roll is adhesively applied over the header disk pleats and the circumferential surface of the roll therebetween.
The aforesaid Morgan technique of roll wrapping permits a single diameter, oversized header disk to be used for a wide range of roll diameters and simultaneously avoids the necessity of carefully inserting a closely sized, pliable disk within the recess of a circumferential wrap overhang.
One object of the present invention is to improve the Morgan technique by eliminating the need of a circular wrap header piece whereby a square header piece such as is cut from a continuous reel of header web stock may be utilized.
Another object of the present invention is to teach an improved method and apparatus for applying oversized roll headers pursuant to the Morgan wrapping technique whereby the header piece is crimped around the entire roll circumference with a single stroke of movement.
Another object of the present invention is to eliminate the need for rotating a roll during the header piece application step.
Another object of the present invention is to teach a method and apparatusthat quickly applies a header piece with such security that the header capped roll may be transferred to another process station for circumferential wrapping thereby substantially reducing the full cycle time at a single station in a process line.
According to one aspect of the invention, a method of protectively wrapping a cylindrical mill reel of paper comprises the steps of;
applying a band of adhesive around the circumferential ~- 4 -'iB
llOQQ28 surface of the reel near an axial end thereof, positioning a sheet of head wrapping material adjacent to and substantially parallel-planar with an end-face of the reel, the sheet being of such size and area as to exceed the diameter and area of the end-face;
folding the sheet over an outer edge corner of the reel end-face simultaneously around the entire circumference thereof; and pleating all excess sheet material that is radially beyond the edge corner onto the cylindrical surface and against the adhesive ~and around the entire circumference thereof; said pleating being carried out simultaneously with the folding step.
According to a further aspect of the invention, there is provided a method of covering the circular plane end-face of a substantially solid cylinder with a sheet of covering material having a greater surface area than the end-face, the method comprising the steps of:
A. providing structural plate means having cylindrical ring means secured thereto one axial end of the ring means projecting transversely from the plane of the plate means;
B. securing a sheet of elastomer material around the periphery of the projecting axial end of the cylindrical ring means, the elastomer sheet having at least an annular portion extending radially within the circular section encompassed by the cylindrical ring means;
C. aligning the ring means concentrically about an end-face of a substantially solid cylinder of less outer diameter than the inner diameter of the ring means, the projecting axial end of the ring means being projected over the cylindrical sur-~- 4a -C
~10~1:P28 face side of the plane of the end-face and the plate means positioned on the other side of the end-face plane;
D. positioning a sheet of the covering material between the solid cylinder end-face and the radially extended portion of the elastomer sheet;
E. pressing the covering sheet and the elastomer sheet between the solid cylinder end-face and the plate means;
F. applying fluid pressure to the plate means side of the elastomer sheet to expand a toroidal shape from the portion of the elastomer sheet between the projecting end of the ring means and a radially outer edge corner of the solid cylinder end-face whereby the area of the covering sheet exceeding the area of the solid cylinder end-face is creased over the edge corner and simultaneously pleated against the cylindrical surface.
According to a still further aspect of the invention, there is provided a method of protectively wrapping a cylindrical mill reel of paper comprising a first station having nonrotation-al reel lifting means and a second station having reel rotating means, the method comprising the steps of:
Ar providing sheets of header wrapping material having a greater area than a normal end-face of the reel;
B. at the first station, capping the end-faces of the reel with respective sheets of the wrapping material by simultaneously creasing and pleating all of that area portion of the sheets radially beyond the cylindrical periphery of the reel over the peripherial edges of the end-face and into respective bands of adhesive circumscribing the cylindrical surface of the reel;
C. moving the capped reel product of the first station to the secGnd station; and ~ 4b -110~28 D. at the second station, wrapping the cylindrical surfaces of the capped reel with a sheet of protective wrap-ping material that overlaps the pleated portions of the end capping sheets.
According to another aspect of the invention, an apparatus for protectively wrapping a cylindrical mill reel of paper comprises:
substantially circular wall means secured to axial displacement means for selective reciprocation along a line per-pendicular to the circular wall;
cylindrical rim means coaxially surrounding a faceplane of the wall and projecting therefrom substantially parallel with the line to an outer edge thereof;
elastomer membrane means secured around the rim means at the outer edge to confine a fluid chamber defined by the wall ` means, the rim means and the membrane means; and fluid conduit means to admit a pressurized fluid to the interior volume of the chamber when the wall is positioned to confine a central region of the membrane between the face plane and an end face of paper reel whereby the membrane is expanded into a toroidal configuration around the paper reel.
According to still another aspect of the invention, an apparatus for protectively wrapping a cylindrical mill reel of paper comprises header means disposed at each end of reel lift means, the header means each comprising substantially circular, coaxially aligned pan means, each said pan means having a substantially circular elastomer membrane cover for fluid pressure chamber means therewithin, at least one of t-he pan means being axially extensible to clamp the end faces of a reel of paper ~- 4c -l~a ~10~
between elastomer covers respective to the two pan means, and conduit means for admitting pressurized fluid to the chamber means, the circule of the membrane having a greater radius than that of the reel of paper whereby the annular excess of the membrane is expanded by the pressurized fluid into a toroidal configuration around the respective ends of the reel.
In the disclosed preferred embodiment, there is provided an oppositely facing pair of axially shiftable header pans having a flexible, elastomer diaphragm spanning the circular opening with the cylindrically projecting - 4d -pan rim. A roll, subject to be wrapped, is positioned over notched elevator stanchions to be raised to an elevation coaxial with the header pans. Either before or after arrival at the header station, the subject roll is provided with a band of adhesive around the roll circumference near both axial ends thereof. Such adhesive may be either the flow-on (brush or spray) type or double-faced tape. With the roll so positioned, webs of header wrapping material drawn from respective supply reels are draped between the opposite roll ends and adjacent header pans. Small diameter center platens positioned coaxially of the header pans are axially extended from both header pans to press the header wrapping web against respective roll end-faces. With the web secured in place, a square header sheet is severed from the supply web continuum. Thereafter, linear motors are actuated to axially extend the header pans into compressive engagement with the roll end-faces, pressing the header sheets therebetween. Pressurized fluid is then introduced to a chamber volume between the header pan rigid structure and the elastomeric diaphragm stretched thereover. Such pressurized air expands the diaphragm in the annular region radially beyond the roll diameter and within the header pan rim onto a toroidal configuration thereby drawing, pressing and creasing the header sheets smoothly over the circular roll end edges and firmly into the bands of adhesive on the roll circumference.
The sharp creases pressed into the header sheet by the inflated diaphragm leaves the crimped portion of the header sheet in contact with the circumferential surface of the roll with relatively light restoration strength thereby permitting the adhesive bands on the subject roll to hold tne header sheet ~10~
firmly in place so tnat the capped roll may be immediately released by the diaphragms and header pans and transferred to a rotational station without losing or loosening the freshly applied header cap.
The entire header capping procedure described above requires approximately forty-five seconds for completion.
Since the following circumferential wrapping procedure which applies a protective web around the roll girth overlying the crimped and pleated portion of the header also requires approximately forty-five seconds for completion, the capacity to separate the functions for simultaneous execution on separate rolls provides opportunity for greatly accelerating roll wrappings productivity.
Moreover, since none of the header capping steps requires manual manipulation, the entire procedure may be mechanically sequenced for automatic programming.
Relative to the drawing wherein like reference characters designate like or similar elements:
FIGURE 1 is a pictorial of the present invention apparatus;
FIGURE 2 is a partially section elevation of the present invention;
FIGURE 3 is a sectional detail of the header pan portion of the present invention;
FIGURE 4 is a pictorial of a paper roll capped with a square header sheet by the method of the invention; and FIGURE 5 is a pictorial of a capped paper roll having the cylindrical surface wrap applied by the method of the invention.
- llOQ~28 The primary components of the present invention apparatus are illustrated by the Figure 1 pictorial. These include an oppositely facing pair of head capping units 100 and 200. Pedestal base 204 of capping unit 200 is rigidly secured to a floor structure whereas pedestal base 104 of the capping unit 100 is secured to the floor by means of rails or guide ways 11 for broad range adjustment of the distance between the two capping units.
Both capping units 100 and 200 are provided with header pans 101 and 201, respectively. Such header pans are secured to the ends of axially shiftable arbor shafts 102 and 202 which slide through frame collars 103 and 203. Any suitable means such as a ramp or jack may be used to raise a roll R subject to protective wrapping up to a coaxial level with the header pans 101, 201 and arbor shafts 102, 202. However, the present inven-tion provides a power operated elevating platform, not shown, which simultaneously lifts a pair of V-notched stanchions 12 and 13. The elevating platform and associate power equipment are recessed below floor level to minimize the required energy output of the equipment and also to keep the work station area clear of equi~rllent clutter. Both stanchions 12 and 13 extend through guide slots 14 in the floor above the elevating platform.
Since capping unit 200 is not positionally adjustable, stanchion 12 may be permanently set for vertical reciprocation.
Stanchion 13, on the other hand, is guided through a particularly selected slot 14 for convenient adjustment of the distance between stanchions 12 and 13 respective to the subject roll length. For changes in roll lengths exceeding stroke capacity of the capping units 100 and 200, it is simply necessary to select an appropriate slot 14 for the movable stanchion 13 and shift the capping unit base 104 on the rails 11 accordingly.
The partial section of Figure 2 illustrates working details of the capping units 100 and 200. Further description of these details will be limited to the movable capping unit 100 since, by association, the same will apply to the fixed capping unit 200.
Header pan 101 and arbor shaft 102 constitute a singular structural unit supported by the frame collar 103.
In detail, the collar comprises a fluid pressure cylinder 130 having heads 131 and 132, each provided with slide bearings and seals 133 and 134, respectively. At opposite axial ends of the cylinder 130 are provided fluid conduits 135 and 136 from a four-way control valve 139. An annular piston 121 secured to the arbor shaft 102 divides the cylinder 130 into two variable volume chambers 137 and 138.
Also structurally sec~red to the arbor shaft 102 is a ring boss 110 and several gusset plates 111 aligned radially from the arbor shaft axis A. These gussets 111 provide structural reinforcement for the annular wall 112 of diaphragm chamber 113. Ring element 114, structurally integral with the annular wall 112 and gussets 111, constitutes the radially outer boundary of the chamber 113 and the rim of pan 101 .
The internal volume of chamber 113 is enclosed by the elastic membrane of diaphragm 115 fabricated from a 0.0625 to 0.125 inch thickness sheet of 30-50 Shore "A" durometer natural gum rubber having a 600% elongation capacity. In the preferred embodiment of the invention, the diaphragm 115 is cut ll~Q~28 in the shape of a concentric circle annulus from a sheet of elas-tomer material having a flat or planar free shape. It is to be understood that by the description of a flat free shape, it is meant that the sheet of material from which the diaghragm 115 is cut has substantially uniform sectional thickness and flat plane shape when unattached or unbiased to any particular shape. The outer periphery of diaphragm 115 is wrapped about the projecting rim of ring element 114 and secured with a clamping ring 117.
Similarly, the inner periphery of the diaphragm annulus is wrap-ped over the corner edge to the wall 112 and well rim 151 and secured with compressionring 118. One or more charging conduits 116 serve to inflate and deflate chamber 113.
In an alternative embodiment of the invention notillustrated, the central aperture of the diaphragm 115 is structurally unattached. The pressure seal at the internal boundary of chamber 113 is formed by clamping pressure between the roll R end-face edge and the wall 112. This diaphragm sealing technique permits pressure in the chamber 113 to be completely and rapidly vented as a consequence of retracting the wall 112 when the capping procedure is completed. Obviously, however, there must be a reasonably accurate axial alignment between the roll R axis and the wall 112 axis or the internal pressure seal will not form.
Within the axial center zone of header pan 101 is provided a recess or platen well 150. The well rim 151 is secured to the internal periphery of the annular wall 112, to the gussets 111, and a base wall 152. This well 150 provides a retraction volume behind the surface plane of annular wall 112 for an axially extensible disk platen 153. A guide shaft slidably received by a journal 155 set in the end of arbor shaft 102 confines the platen 153 to coaxial alignment with axis A.
Fluid motors 156 provide axial displacement of the platen 153.
g QZB
In addition to the head capping units 100 and 200 aforedescribed, means should be provided to expeditiously supply the necessary length of header wrapping material between the opposite roll end faces and the diaphragm face of the capping units. Representative of such means, a web supply system is schematically shown in Figure 2 comprising a pair of powered pulling rolls 20 and 30 positioned above header pans 101 and 201 for drawing a web of paperboard header material W from respective supply reels 21 and 31. Preferably, frame and journal structure for the pulling rolls 20 and 30 is secured to the respective header pans to provide a fixed relative position between the out-feed line of the pulling rolls 20 and 30 and the diaphragm face of the respective header pan.
However, the pulling rolls may also be suspended independently of the header pans so as to be correctly positioned thereover by manual or automatic means not shown.
Additionally, it is desirable to provide one of the many, well known web cutting devices such as represented by the wheel and anvil mechanism 22 and 32 to selectively sever the web W and separate a discrete header sheet h from the web continuum.
Using the foregoing equipment, the method of the invention comprises the preparatory steps of positioning the movable stanchion 13, capping unit 100, and web pulling rolls 20 relative to the axial length of the roll R to be wrapped.
These steps may be performed manually or automatically as the result of a control signal characteristic of the roll R length.
Roll R is then positioned and aligned over the stanchions 12 and 13 to which power is applied for lifting the roll into centerline alignment with axis A.
"~
Either before theroll R is positioned on the stanchions 12 and 13 or afterward, depending on the application means and method, bands 15 of adhesive are applied around the roll circumference near the axial ends. The exact placement of these bands 15 will depend on the roll diameter and the width of the wrapping web W. As previously stated, such adhesive may be either of the flow-on type or double-faced adhesive tape.
When the roll R is lifted by the stanchions 12 and ~ ;
13, the header pan 101 and 201 will be in the axially retracted position shown by Figure 2 by virtue of dominant air pressure in the variable volume chamber 137. Such retracted position will leave sufficient clearance between the roll R end faces and the respective diaphragms 115, 215 for web material W to be draped from the pulling nip of rolls 20 therebetween.
With the apparatus in the condition described and as illustrated by Figure 2, the platens 153, 253 are extended ~-by motors 156, 256 to press the draping web W against the roll end face. With the wrap header sheet h secured relative to the roll, the sheet h is severed from the supply by cutting means 22, 32. Valve 139 is then switched to admit fluid pressure to the chamber 138 and simultaneously exhaust the chamber 137. The consequent pressure differential across the piston 121 drives the header pan 101 and arbor shaft 102 along the axis A against the force of platen motors 156, 256 until the annular wall 112, 212 of the header pans 101, 201 abuts the diaphragms 115, 215 against the roll end faces. Since the rubber of diaphragms 115, 215 will yield as the walls 112, 212 approach final position against the end faces, the header sheets h will be frictionally drawn radially outward in all directions thereabout. Altnough no movement of a header sheet h occurs, such radial friction forces smooth the sheet free of wrinkles as it is pressed flat with the roll end face. Also due to the resilience of the diaphragms 115, 215 and the force exerted by the motor chambers 138, 238, a sharp crease is pressed into the header sheets h at the roll R end edges.
At this stage of the process, pressurized air is admitted to the diaphragm chambers 113, 213 to expand the diaphragms 115, 215 into a toroidal configuration as illustrated by Figure 3. As the toroids grow, the excess header material radially beyond the roll R end edges is pressed against the roll circumferential surface by the rolling, wiping action of the expanding diaphragms 115, 215. This action presses the excess head material with a uniformly distributed force firmly into the adhesive bands 15. Simultaneously, pleats in the excess header material are formed with a reasonably uniform distribution around the roll R circumference and sharply creased to minimize resilient restoration forces within the header sheet h which would otherwise tend to pull the sheet from the adhesive of bands 15 when the pressure is released from chambers 113, 213 and the diaphragms 115, 215 retract.
Due to the firmness and security of the header wrap by the present invention, the diaphragms 115, 215 may be immediately retracted and tne header pans 101, 201 withdrawn by a venting of motor chambers 138, 238 and charging of chambers 137, 237. A header capped roll such as illustrated by Figure 4 is the resulting product.
From the foregoing description, it may now be understood that the cut shape of the header sheet h is largely irrelevant to the operation and ability of ~he invention to :~10Q~28 smoothly cap the ends of a roll. Consequently, square or rectangular header sheets h cut directly from supply rolls 21, 31 may be used with equal facility to a round, die cut header sheet.
It will be noted that the header sheet h is applied with undisturbed surface smoothness in the sense that no pre-formed creases or fold lines are provided to bias the lines along which the pleat creases are formed. Consequently, the internal pressure within the motor chamber 113 must be sufficient to press the randomly occurring pleat crease tightly enough against the reel surface for a permanent set in the header material.
Also due to the firmness and security of the header wrap, regardless of header sheet shape, the capped roll may be immediately removed from the capping station between the units 100, 200 to a rotational station where a circumferential wrap-ping sheet C is applied over the header pleats as illustrated by Figure 5.
~ - 13
The finished product of the papermaking process is a continously issued web approximately twenty feet (6 meters) wide. For shipment to customers and converters, the web is slit into a multiplicity of more manageable widths and wound into cylindrical reels or rolls of normally three to six feet in diameter. Shipment weights of such rolls may range from 1700 to 9200 pounds.
To protect such finished reels of paper from handling and shipment damage, the usual industry practice is to wrap the rolls with a heavy grade of paperboard of greater than 0.009 inch thickness caliper and normally 0.020 inch to 0.024 inch caliper.
The presently prevailing technique for such roll wrapping is to draw a strip of wrapping board from a supply reel o greater axial length than the roll to be protected.
This web strip is wrapped tightly about the cylindrical surface of the protected roll. The axially overhanging portion is crimped radially inward toward the roll center and tightly creased against circular roll end. To seal the roll ends and hold the crimps down against the end faces, two circular header disks of approximately the same diameter as the protected roll are used at each roll end-face. One disk is inserted within the surface wrap overhang flush against the roll end-face.
Adhesive is then applied to the outer face of this first or inner disk. Next, the overhanging portion of the surface wrap is crimped and pleated into the inner disk adhesive. There-after, a second or outer disk having adhesive applied to theinner face thereof is pressed against the outer face of the surface wrap pleats. ~
~lO~Q2B
U.S. Patent Numbers 3,924,375; 3,828,523; 3,633,335;
3,577,703; 2,893,191; and 2,644,282 disclose numerous methods and apparatus to mechanize the aforedescribed wrapping technique.
U.S. Patent 3,924,375 describes an apparatus for incrementally pleating the overhanging portion of an over-hanging, cylindrical surface wrapping sheet onto against the roll end-face.
U.S. Patent 3,828,523 describes an apparatus for holding an inner roll disk header in place while the over-hanging portion of a surface wrapping sheet is incrementally folded over the end corner and pleats formed against the roll end-face.
V.S. Patent 3,633,335 describes a rotating star-wheel apparatus for incrementally folding the overhang of a surface wrapping sheet over a roll end corner into a follower roll to be pleated and creased against the roll end-face.
U.S. Patent 3,577,703 describes a rotating cylinder having a helical groove cut into the surface thereof for incrementally folding the overhanging portion of a surface wrapping sheet over the roll end-edge and creasing the result-ing pleat against the roll end-face.
U.S. Patent 2,893,191 describes a rotating disk apparatus for incrementally folding the overhanging portion of a surface wrapping sheet over the roll end-edge and creasing the resulting pleat against the roll end-face.
U.S. Patent 2,644,282 describes an apparatus for incrementally folding the overhanging portion of surface wrapping sheet over the roll end-edge and creasing the result-ing pleat against the roll end-face by rolling the roll along ~lO~Q28 a floor line with a surface drive belt applied to the upper -~
tangent of the roll. The folding and pleating device is secured to the floor along the roll line and the roll end-face is pressed thereagainst.
Common to all such prior art apparatus and character-istic of the wrapping method in general is the need for circular usually die cut, header disks of substantially the same ~
diameter as the roll. If several different diameter sizes are `-prepared for shipment by the producing mill, it is necessary to make or purchase and store such respectively sized header disks preparatory to use.
Moreover, the mere need of several sizes of header disks creates a material handling obstacle at a roll wrapping station where several different roll sizes are wrapped in mixed succession. As the roll is circumferentially wrapped, the operator must select the proper disk size and manually place it against the roll end face within the overhanging flange of -~
wrapping material that is to serve as the crimped pleats.
Although these tasks are neither difficult nor excessively time consuming under relaxed conditions, in many cases the papermachine produces more rapidly than the product can be wrapped, even with the aid of semiautomatic equipment suGh as that disclosed above.
James Arnold Morgan has taught a method of first applying a band of adhesive, either glue or double-faced tape, around the roll circumference at both axial ends thereof. Next a header disk having a diameter greater than the subject roll is positioned against the respective roll end faces and crimped into the adhesive band with the crimp pleats lying against and around the circumferential surface of the roll. Finally, a 1100~28 circumferential wrap of approximately the same axial length as the roll is adhesively applied over the header disk pleats and the circumferential surface of the roll therebetween.
The aforesaid Morgan technique of roll wrapping permits a single diameter, oversized header disk to be used for a wide range of roll diameters and simultaneously avoids the necessity of carefully inserting a closely sized, pliable disk within the recess of a circumferential wrap overhang.
One object of the present invention is to improve the Morgan technique by eliminating the need of a circular wrap header piece whereby a square header piece such as is cut from a continuous reel of header web stock may be utilized.
Another object of the present invention is to teach an improved method and apparatus for applying oversized roll headers pursuant to the Morgan wrapping technique whereby the header piece is crimped around the entire roll circumference with a single stroke of movement.
Another object of the present invention is to eliminate the need for rotating a roll during the header piece application step.
Another object of the present invention is to teach a method and apparatusthat quickly applies a header piece with such security that the header capped roll may be transferred to another process station for circumferential wrapping thereby substantially reducing the full cycle time at a single station in a process line.
According to one aspect of the invention, a method of protectively wrapping a cylindrical mill reel of paper comprises the steps of;
applying a band of adhesive around the circumferential ~- 4 -'iB
llOQQ28 surface of the reel near an axial end thereof, positioning a sheet of head wrapping material adjacent to and substantially parallel-planar with an end-face of the reel, the sheet being of such size and area as to exceed the diameter and area of the end-face;
folding the sheet over an outer edge corner of the reel end-face simultaneously around the entire circumference thereof; and pleating all excess sheet material that is radially beyond the edge corner onto the cylindrical surface and against the adhesive ~and around the entire circumference thereof; said pleating being carried out simultaneously with the folding step.
According to a further aspect of the invention, there is provided a method of covering the circular plane end-face of a substantially solid cylinder with a sheet of covering material having a greater surface area than the end-face, the method comprising the steps of:
A. providing structural plate means having cylindrical ring means secured thereto one axial end of the ring means projecting transversely from the plane of the plate means;
B. securing a sheet of elastomer material around the periphery of the projecting axial end of the cylindrical ring means, the elastomer sheet having at least an annular portion extending radially within the circular section encompassed by the cylindrical ring means;
C. aligning the ring means concentrically about an end-face of a substantially solid cylinder of less outer diameter than the inner diameter of the ring means, the projecting axial end of the ring means being projected over the cylindrical sur-~- 4a -C
~10~1:P28 face side of the plane of the end-face and the plate means positioned on the other side of the end-face plane;
D. positioning a sheet of the covering material between the solid cylinder end-face and the radially extended portion of the elastomer sheet;
E. pressing the covering sheet and the elastomer sheet between the solid cylinder end-face and the plate means;
F. applying fluid pressure to the plate means side of the elastomer sheet to expand a toroidal shape from the portion of the elastomer sheet between the projecting end of the ring means and a radially outer edge corner of the solid cylinder end-face whereby the area of the covering sheet exceeding the area of the solid cylinder end-face is creased over the edge corner and simultaneously pleated against the cylindrical surface.
According to a still further aspect of the invention, there is provided a method of protectively wrapping a cylindrical mill reel of paper comprising a first station having nonrotation-al reel lifting means and a second station having reel rotating means, the method comprising the steps of:
Ar providing sheets of header wrapping material having a greater area than a normal end-face of the reel;
B. at the first station, capping the end-faces of the reel with respective sheets of the wrapping material by simultaneously creasing and pleating all of that area portion of the sheets radially beyond the cylindrical periphery of the reel over the peripherial edges of the end-face and into respective bands of adhesive circumscribing the cylindrical surface of the reel;
C. moving the capped reel product of the first station to the secGnd station; and ~ 4b -110~28 D. at the second station, wrapping the cylindrical surfaces of the capped reel with a sheet of protective wrap-ping material that overlaps the pleated portions of the end capping sheets.
According to another aspect of the invention, an apparatus for protectively wrapping a cylindrical mill reel of paper comprises:
substantially circular wall means secured to axial displacement means for selective reciprocation along a line per-pendicular to the circular wall;
cylindrical rim means coaxially surrounding a faceplane of the wall and projecting therefrom substantially parallel with the line to an outer edge thereof;
elastomer membrane means secured around the rim means at the outer edge to confine a fluid chamber defined by the wall ` means, the rim means and the membrane means; and fluid conduit means to admit a pressurized fluid to the interior volume of the chamber when the wall is positioned to confine a central region of the membrane between the face plane and an end face of paper reel whereby the membrane is expanded into a toroidal configuration around the paper reel.
According to still another aspect of the invention, an apparatus for protectively wrapping a cylindrical mill reel of paper comprises header means disposed at each end of reel lift means, the header means each comprising substantially circular, coaxially aligned pan means, each said pan means having a substantially circular elastomer membrane cover for fluid pressure chamber means therewithin, at least one of t-he pan means being axially extensible to clamp the end faces of a reel of paper ~- 4c -l~a ~10~
between elastomer covers respective to the two pan means, and conduit means for admitting pressurized fluid to the chamber means, the circule of the membrane having a greater radius than that of the reel of paper whereby the annular excess of the membrane is expanded by the pressurized fluid into a toroidal configuration around the respective ends of the reel.
In the disclosed preferred embodiment, there is provided an oppositely facing pair of axially shiftable header pans having a flexible, elastomer diaphragm spanning the circular opening with the cylindrically projecting - 4d -pan rim. A roll, subject to be wrapped, is positioned over notched elevator stanchions to be raised to an elevation coaxial with the header pans. Either before or after arrival at the header station, the subject roll is provided with a band of adhesive around the roll circumference near both axial ends thereof. Such adhesive may be either the flow-on (brush or spray) type or double-faced tape. With the roll so positioned, webs of header wrapping material drawn from respective supply reels are draped between the opposite roll ends and adjacent header pans. Small diameter center platens positioned coaxially of the header pans are axially extended from both header pans to press the header wrapping web against respective roll end-faces. With the web secured in place, a square header sheet is severed from the supply web continuum. Thereafter, linear motors are actuated to axially extend the header pans into compressive engagement with the roll end-faces, pressing the header sheets therebetween. Pressurized fluid is then introduced to a chamber volume between the header pan rigid structure and the elastomeric diaphragm stretched thereover. Such pressurized air expands the diaphragm in the annular region radially beyond the roll diameter and within the header pan rim onto a toroidal configuration thereby drawing, pressing and creasing the header sheets smoothly over the circular roll end edges and firmly into the bands of adhesive on the roll circumference.
The sharp creases pressed into the header sheet by the inflated diaphragm leaves the crimped portion of the header sheet in contact with the circumferential surface of the roll with relatively light restoration strength thereby permitting the adhesive bands on the subject roll to hold tne header sheet ~10~
firmly in place so tnat the capped roll may be immediately released by the diaphragms and header pans and transferred to a rotational station without losing or loosening the freshly applied header cap.
The entire header capping procedure described above requires approximately forty-five seconds for completion.
Since the following circumferential wrapping procedure which applies a protective web around the roll girth overlying the crimped and pleated portion of the header also requires approximately forty-five seconds for completion, the capacity to separate the functions for simultaneous execution on separate rolls provides opportunity for greatly accelerating roll wrappings productivity.
Moreover, since none of the header capping steps requires manual manipulation, the entire procedure may be mechanically sequenced for automatic programming.
Relative to the drawing wherein like reference characters designate like or similar elements:
FIGURE 1 is a pictorial of the present invention apparatus;
FIGURE 2 is a partially section elevation of the present invention;
FIGURE 3 is a sectional detail of the header pan portion of the present invention;
FIGURE 4 is a pictorial of a paper roll capped with a square header sheet by the method of the invention; and FIGURE 5 is a pictorial of a capped paper roll having the cylindrical surface wrap applied by the method of the invention.
- llOQ~28 The primary components of the present invention apparatus are illustrated by the Figure 1 pictorial. These include an oppositely facing pair of head capping units 100 and 200. Pedestal base 204 of capping unit 200 is rigidly secured to a floor structure whereas pedestal base 104 of the capping unit 100 is secured to the floor by means of rails or guide ways 11 for broad range adjustment of the distance between the two capping units.
Both capping units 100 and 200 are provided with header pans 101 and 201, respectively. Such header pans are secured to the ends of axially shiftable arbor shafts 102 and 202 which slide through frame collars 103 and 203. Any suitable means such as a ramp or jack may be used to raise a roll R subject to protective wrapping up to a coaxial level with the header pans 101, 201 and arbor shafts 102, 202. However, the present inven-tion provides a power operated elevating platform, not shown, which simultaneously lifts a pair of V-notched stanchions 12 and 13. The elevating platform and associate power equipment are recessed below floor level to minimize the required energy output of the equipment and also to keep the work station area clear of equi~rllent clutter. Both stanchions 12 and 13 extend through guide slots 14 in the floor above the elevating platform.
Since capping unit 200 is not positionally adjustable, stanchion 12 may be permanently set for vertical reciprocation.
Stanchion 13, on the other hand, is guided through a particularly selected slot 14 for convenient adjustment of the distance between stanchions 12 and 13 respective to the subject roll length. For changes in roll lengths exceeding stroke capacity of the capping units 100 and 200, it is simply necessary to select an appropriate slot 14 for the movable stanchion 13 and shift the capping unit base 104 on the rails 11 accordingly.
The partial section of Figure 2 illustrates working details of the capping units 100 and 200. Further description of these details will be limited to the movable capping unit 100 since, by association, the same will apply to the fixed capping unit 200.
Header pan 101 and arbor shaft 102 constitute a singular structural unit supported by the frame collar 103.
In detail, the collar comprises a fluid pressure cylinder 130 having heads 131 and 132, each provided with slide bearings and seals 133 and 134, respectively. At opposite axial ends of the cylinder 130 are provided fluid conduits 135 and 136 from a four-way control valve 139. An annular piston 121 secured to the arbor shaft 102 divides the cylinder 130 into two variable volume chambers 137 and 138.
Also structurally sec~red to the arbor shaft 102 is a ring boss 110 and several gusset plates 111 aligned radially from the arbor shaft axis A. These gussets 111 provide structural reinforcement for the annular wall 112 of diaphragm chamber 113. Ring element 114, structurally integral with the annular wall 112 and gussets 111, constitutes the radially outer boundary of the chamber 113 and the rim of pan 101 .
The internal volume of chamber 113 is enclosed by the elastic membrane of diaphragm 115 fabricated from a 0.0625 to 0.125 inch thickness sheet of 30-50 Shore "A" durometer natural gum rubber having a 600% elongation capacity. In the preferred embodiment of the invention, the diaphragm 115 is cut ll~Q~28 in the shape of a concentric circle annulus from a sheet of elas-tomer material having a flat or planar free shape. It is to be understood that by the description of a flat free shape, it is meant that the sheet of material from which the diaghragm 115 is cut has substantially uniform sectional thickness and flat plane shape when unattached or unbiased to any particular shape. The outer periphery of diaphragm 115 is wrapped about the projecting rim of ring element 114 and secured with a clamping ring 117.
Similarly, the inner periphery of the diaphragm annulus is wrap-ped over the corner edge to the wall 112 and well rim 151 and secured with compressionring 118. One or more charging conduits 116 serve to inflate and deflate chamber 113.
In an alternative embodiment of the invention notillustrated, the central aperture of the diaphragm 115 is structurally unattached. The pressure seal at the internal boundary of chamber 113 is formed by clamping pressure between the roll R end-face edge and the wall 112. This diaphragm sealing technique permits pressure in the chamber 113 to be completely and rapidly vented as a consequence of retracting the wall 112 when the capping procedure is completed. Obviously, however, there must be a reasonably accurate axial alignment between the roll R axis and the wall 112 axis or the internal pressure seal will not form.
Within the axial center zone of header pan 101 is provided a recess or platen well 150. The well rim 151 is secured to the internal periphery of the annular wall 112, to the gussets 111, and a base wall 152. This well 150 provides a retraction volume behind the surface plane of annular wall 112 for an axially extensible disk platen 153. A guide shaft slidably received by a journal 155 set in the end of arbor shaft 102 confines the platen 153 to coaxial alignment with axis A.
Fluid motors 156 provide axial displacement of the platen 153.
g QZB
In addition to the head capping units 100 and 200 aforedescribed, means should be provided to expeditiously supply the necessary length of header wrapping material between the opposite roll end faces and the diaphragm face of the capping units. Representative of such means, a web supply system is schematically shown in Figure 2 comprising a pair of powered pulling rolls 20 and 30 positioned above header pans 101 and 201 for drawing a web of paperboard header material W from respective supply reels 21 and 31. Preferably, frame and journal structure for the pulling rolls 20 and 30 is secured to the respective header pans to provide a fixed relative position between the out-feed line of the pulling rolls 20 and 30 and the diaphragm face of the respective header pan.
However, the pulling rolls may also be suspended independently of the header pans so as to be correctly positioned thereover by manual or automatic means not shown.
Additionally, it is desirable to provide one of the many, well known web cutting devices such as represented by the wheel and anvil mechanism 22 and 32 to selectively sever the web W and separate a discrete header sheet h from the web continuum.
Using the foregoing equipment, the method of the invention comprises the preparatory steps of positioning the movable stanchion 13, capping unit 100, and web pulling rolls 20 relative to the axial length of the roll R to be wrapped.
These steps may be performed manually or automatically as the result of a control signal characteristic of the roll R length.
Roll R is then positioned and aligned over the stanchions 12 and 13 to which power is applied for lifting the roll into centerline alignment with axis A.
"~
Either before theroll R is positioned on the stanchions 12 and 13 or afterward, depending on the application means and method, bands 15 of adhesive are applied around the roll circumference near the axial ends. The exact placement of these bands 15 will depend on the roll diameter and the width of the wrapping web W. As previously stated, such adhesive may be either of the flow-on type or double-faced adhesive tape.
When the roll R is lifted by the stanchions 12 and ~ ;
13, the header pan 101 and 201 will be in the axially retracted position shown by Figure 2 by virtue of dominant air pressure in the variable volume chamber 137. Such retracted position will leave sufficient clearance between the roll R end faces and the respective diaphragms 115, 215 for web material W to be draped from the pulling nip of rolls 20 therebetween.
With the apparatus in the condition described and as illustrated by Figure 2, the platens 153, 253 are extended ~-by motors 156, 256 to press the draping web W against the roll end face. With the wrap header sheet h secured relative to the roll, the sheet h is severed from the supply by cutting means 22, 32. Valve 139 is then switched to admit fluid pressure to the chamber 138 and simultaneously exhaust the chamber 137. The consequent pressure differential across the piston 121 drives the header pan 101 and arbor shaft 102 along the axis A against the force of platen motors 156, 256 until the annular wall 112, 212 of the header pans 101, 201 abuts the diaphragms 115, 215 against the roll end faces. Since the rubber of diaphragms 115, 215 will yield as the walls 112, 212 approach final position against the end faces, the header sheets h will be frictionally drawn radially outward in all directions thereabout. Altnough no movement of a header sheet h occurs, such radial friction forces smooth the sheet free of wrinkles as it is pressed flat with the roll end face. Also due to the resilience of the diaphragms 115, 215 and the force exerted by the motor chambers 138, 238, a sharp crease is pressed into the header sheets h at the roll R end edges.
At this stage of the process, pressurized air is admitted to the diaphragm chambers 113, 213 to expand the diaphragms 115, 215 into a toroidal configuration as illustrated by Figure 3. As the toroids grow, the excess header material radially beyond the roll R end edges is pressed against the roll circumferential surface by the rolling, wiping action of the expanding diaphragms 115, 215. This action presses the excess head material with a uniformly distributed force firmly into the adhesive bands 15. Simultaneously, pleats in the excess header material are formed with a reasonably uniform distribution around the roll R circumference and sharply creased to minimize resilient restoration forces within the header sheet h which would otherwise tend to pull the sheet from the adhesive of bands 15 when the pressure is released from chambers 113, 213 and the diaphragms 115, 215 retract.
Due to the firmness and security of the header wrap by the present invention, the diaphragms 115, 215 may be immediately retracted and tne header pans 101, 201 withdrawn by a venting of motor chambers 138, 238 and charging of chambers 137, 237. A header capped roll such as illustrated by Figure 4 is the resulting product.
From the foregoing description, it may now be understood that the cut shape of the header sheet h is largely irrelevant to the operation and ability of ~he invention to :~10Q~28 smoothly cap the ends of a roll. Consequently, square or rectangular header sheets h cut directly from supply rolls 21, 31 may be used with equal facility to a round, die cut header sheet.
It will be noted that the header sheet h is applied with undisturbed surface smoothness in the sense that no pre-formed creases or fold lines are provided to bias the lines along which the pleat creases are formed. Consequently, the internal pressure within the motor chamber 113 must be sufficient to press the randomly occurring pleat crease tightly enough against the reel surface for a permanent set in the header material.
Also due to the firmness and security of the header wrap, regardless of header sheet shape, the capped roll may be immediately removed from the capping station between the units 100, 200 to a rotational station where a circumferential wrap-ping sheet C is applied over the header pleats as illustrated by Figure 5.
~ - 13
Claims (17)
1. A method of protectively wrapping a cylindrical mill reel of paper comprising the steps of:
A. applying a band of adhesive around the circumferen-tial surface of said reel near an axial end thereof;
B. positioning a sheet of head wrapping material adja-cent to and substantially parallel-planar with an end-face of said reel, said sheet being of such size and area as to exceed the diameter and area of said end-face;
C. folding said sheet over an outer edge corner of said reel end-face simultaneously around the entire circumference thereof; and D. pleating all excess sheet material that is radially beyond said edge corner onto said cylindrical surface and against said adhesive band around the entire circumference thereof, said pleating being carried out simultaneously with the folding step.
A. applying a band of adhesive around the circumferen-tial surface of said reel near an axial end thereof;
B. positioning a sheet of head wrapping material adja-cent to and substantially parallel-planar with an end-face of said reel, said sheet being of such size and area as to exceed the diameter and area of said end-face;
C. folding said sheet over an outer edge corner of said reel end-face simultaneously around the entire circumference thereof; and D. pleating all excess sheet material that is radially beyond said edge corner onto said cylindrical surface and against said adhesive band around the entire circumference thereof, said pleating being carried out simultaneously with the folding step.
2. A method as described by claim 1 wherein said sheet of head wrapping material is clamped against said reel end-face as said excess material is folded over said edge corner.
3. A method as described by claim 2 wherein said sheet is first clamped in the proximity of an axis of revolution of said reel and subsequently clamped around said edge corner peri-phery of said end-face.
4. A method as described by claim 3 wherein said subse-quent clamping comprises a radial pulling of said sheet to said edge corner.
5. A method as described by claim 4 wherein said radial pulling, said edge corner folding and said surface pleat-ing is accomplished by the stretching, rolling and pressing forces of volumetrically expansible, elastomer toroid means.
6. A method of covering the circular plane end-face of a substantially solid cylinder with a sheet of covering material having a greater surface area than said end-face, said method comprising the steps of:
A. providing structural plate means having cylindrical ring means secured thereto one axial end of said ring means projecting transversely from the plane of said plate means;
B. securing a sheet of elastomer material around the periphery of said projecting axial end of said cylindrical ring means, said elastomer sheet having at least an annular portion extending radially within the circular section encompassed by said cylindrical ring means;
C. aligning said ring means concentrically about an end-face of a substantially solid cylinder of less outer diameter than the inner diameter of said ring means, said projecting axial end of said ring means being projected over the cylindrical sur-face side of the plane of said end-face and said plate means positioned on the other side of said end-face plane;
D. positioning a sheet of said covering material between said solid cylinder end-face and said radially extended portion of said elastomer sheet;
E. pressing said covering sheet and said elastomer sheet between said solid cylinder end-face and said plate means;
F. applying fluid pressure to the plate means side of said elastomer sheet to expand a toroidal shape from the portion of said elastomer sheet between said projecting end of said ring means and a radially outer edge corner of said solid cylinder end-face whereby the area of said covering sheet exceeding the area of said solid cylinder end-face is creased over said edge corner and simultaneously pleated against said cylindrical surface.
A. providing structural plate means having cylindrical ring means secured thereto one axial end of said ring means projecting transversely from the plane of said plate means;
B. securing a sheet of elastomer material around the periphery of said projecting axial end of said cylindrical ring means, said elastomer sheet having at least an annular portion extending radially within the circular section encompassed by said cylindrical ring means;
C. aligning said ring means concentrically about an end-face of a substantially solid cylinder of less outer diameter than the inner diameter of said ring means, said projecting axial end of said ring means being projected over the cylindrical sur-face side of the plane of said end-face and said plate means positioned on the other side of said end-face plane;
D. positioning a sheet of said covering material between said solid cylinder end-face and said radially extended portion of said elastomer sheet;
E. pressing said covering sheet and said elastomer sheet between said solid cylinder end-face and said plate means;
F. applying fluid pressure to the plate means side of said elastomer sheet to expand a toroidal shape from the portion of said elastomer sheet between said projecting end of said ring means and a radially outer edge corner of said solid cylinder end-face whereby the area of said covering sheet exceeding the area of said solid cylinder end-face is creased over said edge corner and simultaneously pleated against said cylindrical surface.
7. A method of protectively wrapping a cylindrical mill reel of paper comprising a first station having nonrotation-al reel lifting means and a second station having reel rotating`
means, said method comprising the steps of:
A. providing sheets of header wrapping material having a greater area than a normal end-face of said reel;
B. at said first station, capping the end-faces of said reel with respective sheets of said wrapping material by simultaneously creasing and pleating all of that area portion of said sheets radially beyond the cylindrical periphery of said reel over the peripherial edges of said end-face and into respective bands of adhesive circumscribing the cylindrical surface of said reel;
C. moving the capped reel product of said first station to said second station; and D. at said second station, wrapping the cylindrical surfaces of said capped reel with a sheet of protective wrapping material that overlaps the pleated portions of said end capping sheets.
means, said method comprising the steps of:
A. providing sheets of header wrapping material having a greater area than a normal end-face of said reel;
B. at said first station, capping the end-faces of said reel with respective sheets of said wrapping material by simultaneously creasing and pleating all of that area portion of said sheets radially beyond the cylindrical periphery of said reel over the peripherial edges of said end-face and into respective bands of adhesive circumscribing the cylindrical surface of said reel;
C. moving the capped reel product of said first station to said second station; and D. at said second station, wrapping the cylindrical surfaces of said capped reel with a sheet of protective wrapping material that overlaps the pleated portions of said end capping sheets.
8. An apparatus for protectively wrapping a cylindrical mill reel of paper comprising:
substantially circular wall means secured to axial displacement means for selective reciprocation along a line perpendicular to said circular wall;
cylindrical rim means coaxially surrounding a face plane of said wall and projecting therefrom substantially parallel with said line to an outer edge thereof;
elastomer membrane means secured around said rim means at said outer edge to confine a fluid chamber defined by said wall means, said rim means and said membrane means; and fluid conduit means to admit a pressurized fluid to the interior volume of said chamber when said wall is positioned to confine a central region of said membrane between said face plane and an end face of a paper reel whereby said membrane is expanded into a toroidal configuration around said paper reel.
substantially circular wall means secured to axial displacement means for selective reciprocation along a line perpendicular to said circular wall;
cylindrical rim means coaxially surrounding a face plane of said wall and projecting therefrom substantially parallel with said line to an outer edge thereof;
elastomer membrane means secured around said rim means at said outer edge to confine a fluid chamber defined by said wall means, said rim means and said membrane means; and fluid conduit means to admit a pressurized fluid to the interior volume of said chamber when said wall is positioned to confine a central region of said membrane between said face plane and an end face of a paper reel whereby said membrane is expanded into a toroidal configuration around said paper reel.
9. An apparatus as described by claim 8 comprising extensible platen means of less face area than said wall means secured to said wall means for coaxial displacement relative thereto, a volumetric recess in said wall means to receive said platen means and an aperture provided in said membrane means for passage of said platen means.
10. An apparatus as described by claim 8 wherein said wall means is coaxially secured to an arbor shaft confined to axial displacement relative to a pedestal frame, such displace-ment being reciprocably powered by fluid motor means.
11. An apparatus for protectively wrapping a cylindrical mill reel of paper comprising header means disposed at each end of reel lift means, said header means each comprising substan-tially circular, coaxially aligned pan means, each said pan means having a substantially circular elastomer membrane cover for fluid pressure chamber means therewithin, at least one of said pan means being axially extensible to clamp the end faces of a reel of paper between elastomer covers respective to the two pan means, and conduit means for admitting pressurized fluid to said chamber means, the circle of said membrane having a greater radius than that of said reel of paper whereby the annular excess of said membrane is expanded by said pressurized fluid into a toroidal configuration around the respective ends of said reel.
12. Apparatus as described by claim 11 comprising header material supply means respective to both header means for positioning a draping end of a reeled web between a paper reel end face and the adjacent elastomer membrane.
13. Apparatus as described by claim 12 comprising axially extensible platen means disposed coaxially of said pan means for holding said draping end against a paper reel end-face when said draping end is severed from the continuum of said web.
14. Apparatus as described by claim 13 wherein a recess volume is provided within a roll end-face engaging sur-face of said pan means to receive said platen means therein as the axially extensible pan means approaches said end-face.
15. Apparatus as described by claim 14 comprising cutting means to sever said header material draping end from said web continuum.
16. A method as described by claim 1 wherein bands of adhesive are applied around both axial ends of said reel for simultaneous capping of both end faces with a paperboard header.
17. Apparatus as described by claim 11 wherein each elastomer cover has a substantially 600 percent elongation property.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US83330077A | 1977-09-14 | 1977-09-14 | |
| US833,300 | 1977-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1100028A true CA1100028A (en) | 1981-04-28 |
Family
ID=25264024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA309,973A Expired CA1100028A (en) | 1977-09-14 | 1978-08-24 | Method and apparatus for wrapping paper rolls |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5454792A (en) |
| AT (1) | AT369334B (en) |
| CA (1) | CA1100028A (en) |
| DE (1) | DE2838862A1 (en) |
| FI (1) | FI60171C (en) |
| FR (1) | FR2403267A1 (en) |
| GB (1) | GB2004245B (en) |
| IT (1) | IT1104573B (en) |
| SE (1) | SE7809216L (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115258227A (en) * | 2022-07-21 | 2022-11-01 | 云南浩鑫铝箔有限公司 | Automatic aluminum foil roll compressing and packaging device and method |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3020192C2 (en) * | 1980-05-28 | 1983-03-17 | Feldmühle AG, 4000 Düsseldorf | Hand-operated device for applying circular blanks |
| FI63712C (en) * | 1981-11-16 | 1983-08-10 | Ahlstroem Oy | FOERFARANDE OCH ANORDNING FOER INPACKNING AV PAPPERSRULLAR |
| SE8405106L (en) * | 1984-10-12 | 1985-07-15 | Solbergs Forseljnings | SET AND EQUIPMENT FOR CUTTING GABLE RUNS FOR PACKAGING PAPER ROLLS |
| DE4100391A1 (en) * | 1991-01-09 | 1992-07-16 | Bisping Gregor Schulze | Method of air tight wrapping pressed bales - involves applying covers to ends of bale which is progressively wrapped with foil as it revolves |
| DE4324417A1 (en) * | 1993-07-21 | 1995-01-26 | Kleinewefers Kunststoffanlagen | Process and apparatus for the automatic packaging of rolls of material |
| DE4427469C2 (en) * | 1994-08-03 | 1998-03-12 | Kleinewefers Gmbh | Method and device for packaging a roll from a wound material web |
| US5555708A (en) * | 1995-04-21 | 1996-09-17 | Elopak Systems A.G. | Pressure closing mechanism |
| US5533321A (en) * | 1995-08-09 | 1996-07-09 | Lamb-Grays Harbor Co. | Method and apparatus for wrapping, crimping and heading paper rolls at a single station |
| US5950400A (en) * | 1996-10-31 | 1999-09-14 | C & S Associates | Apparatus and method for protecting rolled material |
| DE19930275C2 (en) * | 1999-07-01 | 2003-02-27 | Fraunhofer Ges Forschung | Protection device for the circumferential protection of large-volume bales |
| DE19961665C2 (en) * | 1999-12-21 | 2003-08-28 | Voith Paper Patent Gmbh | Packing device for attaching outer end covers |
| IT1319349B1 (en) * | 2000-12-05 | 2003-10-10 | Bf Engineering S P A | COILS-MADE PACKAGING SYSTEM |
| JP4955445B2 (en) * | 2007-04-16 | 2012-06-20 | ポリマテック株式会社 | Damper, electronic component and electronic device equipped with damper |
| GB0714811D0 (en) * | 2007-07-31 | 2007-09-12 | Reckitt Benckiser Nv | Improvements in or relating to compositions |
| DE102008041016A1 (en) * | 2008-08-05 | 2010-02-11 | Voith Patent Gmbh | Method and device for the frontal packaging of web rolls |
| DE102008041017A1 (en) * | 2008-08-05 | 2010-02-11 | Voith Patent Gmbh | Method and device for the frontal packaging of a web roll |
| DE102008054872A1 (en) * | 2008-12-18 | 2010-06-24 | Voith Patent Gmbh | Method and device for attaching end caps on the front side of a web roll |
| CN112340091B (en) * | 2020-09-11 | 2022-09-23 | 福建福融新材料有限公司 | End face packaging device |
| CN115303531B (en) * | 2022-08-16 | 2023-09-29 | 绵阳高新区鸿强科技有限公司 | Pipe winding mechanism of full-automatic pipe winding machine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1612262A (en) * | 1926-01-25 | 1926-12-28 | Archie W Coggins | Apparatus for wrapping cylinders |
| US1689430A (en) * | 1927-04-26 | 1928-10-30 | American Mach & Foundry | Package and method of making the same |
| US2012304A (en) * | 1933-01-20 | 1935-08-27 | Columbia Ribbon Carbon Mfg | Wrapping machine |
| US2883045A (en) * | 1957-03-08 | 1959-04-21 | Central States Paper & Bag Co | Packaging covers for coiled sheet material |
| DE2147277C3 (en) * | 1971-09-22 | 1974-07-11 | Thiessen, Uwe, 5770 Arnsberg | Machine for packing paper rolls |
-
1978
- 1978-08-24 CA CA309,973A patent/CA1100028A/en not_active Expired
- 1978-09-01 SE SE7809216A patent/SE7809216L/en unknown
- 1978-09-06 GB GB7835828A patent/GB2004245B/en not_active Expired
- 1978-09-06 DE DE19782838862 patent/DE2838862A1/en not_active Withdrawn
- 1978-09-07 FI FI782743A patent/FI60171C/en not_active IP Right Cessation
- 1978-09-14 AT AT0664578A patent/AT369334B/en not_active IP Right Cessation
- 1978-09-14 IT IT27665/78A patent/IT1104573B/en active
- 1978-09-14 FR FR7826465A patent/FR2403267A1/en not_active Withdrawn
- 1978-09-14 JP JP11350478A patent/JPS5454792A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115258227A (en) * | 2022-07-21 | 2022-11-01 | 云南浩鑫铝箔有限公司 | Automatic aluminum foil roll compressing and packaging device and method |
| CN115258227B (en) * | 2022-07-21 | 2024-05-03 | 云南浩鑫铝箔有限公司 | Automatic compaction packaging device and method for aluminum foil coil |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2004245A (en) | 1979-03-28 |
| IT7827665A0 (en) | 1978-09-14 |
| GB2004245B (en) | 1982-05-06 |
| JPS5760213B2 (en) | 1982-12-18 |
| FI60171C (en) | 1981-12-10 |
| JPS5454792A (en) | 1979-05-01 |
| ATA664578A (en) | 1982-05-15 |
| FI60171B (en) | 1981-08-31 |
| IT1104573B (en) | 1985-10-21 |
| SE7809216L (en) | 1979-03-15 |
| FR2403267A1 (en) | 1979-04-13 |
| DE2838862A1 (en) | 1979-03-22 |
| FI782743A (en) | 1979-03-15 |
| AT369334B (en) | 1982-12-27 |
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