Paper Converting Machine Company

James E Hertel

John R Merkatoris

Dale E Zeman

Gerry W Buxton

Thomas J Daul

Richard J Vigneau

Grantland A Craig

Steven G Gould

Larry D Wierschke

Joseph A Blume

Gary E Johnson

Steve J Jansen

Gerald W Buxton

Lawrence D Mikulsky

Dennis W Ehlers

Roman J Mudry

John H Wunderlich

Peter A Heath

Lawrence J Oliver

David C O'Donnell

Thomas D Huempfner

Wayne W Luebke

A core infeed apparatus for a surface winder moves an elongated core axially into the winder while an axial line of glue is applied to the core. The core is moved into a space between a pair of rotatable core guides. One of the core guides is rotatable away from the core while the other core guide rotates the core toward a core inserter. The core is transferred to the core inserter, and the core inserter rotates to move the core toward the winding rolls of the rewinder. The position of the glue line is accurately maintained as the core moves to its various positions.

Core infeed apparatus for winder

A stack of interfolded sheets is formed from a plurality of groups of interfolded sheets. Adjacent groups are secured or bonded together so that the bottom sheet of each group pulls the top sheet of the next group. In one embodiment of the invention, the strength of the bond is such that when the bottom sheet of a group is withdrawn through an opening in a package for the stack, the bond releases the top sheet of the next group after the top sheet is partially withdrawn through the opening. In another embodiment of the invention, the strength of the bond is such that the top sheet remains secured to the bottom sheet and is completely withdrawn through the opening. The sheets can be secured by an adhesive bond or by a non-adhesive bond.

Stack formed from connected groups of interfolded sheets

A surface winder includes first and second winding rolls for winding a web on a center member, a stationary surface spaced from the first winding roll for rolling a center member on the stationary surface, and a pinch pad for pinching the web against a pinch surface upstream of the center member and thereby severing the web. The first winding roll is provided with a high friction surface, and only a short length of web needs to be stretched between the pinch surface and the first roll to tension and sever the web. The severed web is wound on the center member as the center member rolls on the stationary surface.

Surface winder with pinch cutoff

A preprinted web having a plurality of first repeating images is reprinted with a plurality of second repeating images which are in register with the first images. A register mark is printed on the web for each of the first images. When the web is reprinted, the positions of the register marks are sensed and compared with the positions of the second images, and the unwind tension of the web is adjusted to maintain the relative positions substantially constant.

Method and apparatus for registering a pre-printed web on a printing

A method and apparatus for producing a roll or log of bathroom tissue or kitchen toweling with a pattern being repeated between each pair of transverse perforations wherein an extensible web having a pattern thereon repeated at equally longitudinally spaced position is advanced along a path toward a rewinder having a knife-equipped perforator and a cutoff mechanism. A detector senses the position of each pattern and also sensed is the position of the perforation knife with the positions being reported to a controller. The perforation knife is adjusted to insure that each perforation is between pattern positions and the cutoff mechanism is adjusted to stay in time with the transverse lines of perforations to provide a selected count of patterns in each winding cycle.

Method and apparatus for producing a roll of bathroom tissue or kitchen

A surface winder and method employing recycled mandrels wherein a frame provides a winding path, a first winding drum for continuously advancing a web in the path and positioned on one side of the path, a mandrel inserter for introducing mandrels sequentially into the path for contact with the web, a second winding drum on the frame on the other side the path for coacting with the first winding drum in developing a log and a stripper on the frame for stripping each mandrel sequentially out of its associated log.

Surface winder with recycled mandrels and method

Apparatus and method for flexographic printing wherein a press having a frame is equipped with an ink transfer roll, a subframe is movably mounted on the frame adjacent the transfer roll, a holder being movably mounted on the subframe, the holder being equipped with upper and lower doctor blades engaging the transfer roll and end seals defining with the roll a liquid chamber, and an ink inlet and an ink outlet in the holder, the subframe having portions clamping the doctor blades to the holder, the subframe being pivotally mounted on the frame for movement away from the ink transfer roll, the subframe being equipped with a cylinder for moving the holder so as to unclamp the doctor blades for replacement.

Apparatus and method for doctor blade replacement in a flexographic press

A method and apparatus for applying an elastic waistband to disposable diapers utilizing canted pin-equipped wheels where an elastic patch is applied to the wheels when the wheel peripheries are close together and then stripping the patches from the pins and applying them to a diaper component web when the wheels are further apart.

Apparatus for applying an elastic waistband to a disposable diaper

A method and apparatus for forming fluff pads and the like wherein fluff providing material webs are introduced into separate hammermills and then delivered through a plurality of ducts through a moving screen under vacuum and wherein the ducts are characterized by reverse bends to densify the particle stream at the outside of the curvature for generally perpendicular deposition on the screen.

Method and apparatus for forming fluff pads for diapers and the like

Apparatus and method for printing plate cylinder--impression cylinder registration for a multi color flexographic press wherein pin means are provided on the plate cylinder gear and finger means provided on the impression cylinder gear and when the two come in contact upon rotation of the impression cylinder gear, the plate cylinder gear rotates through a small arc during which time the gears are brought into meshing engagements.

Apparatus and method for printing plate cylinder--impression cylinder

A method of controlling stack back pressure in folding apparatus incorporating sensing the bulk of a stack issuing from folding rolls, forming a signal corresponding to the sensed bulk, comparing the signal with a predetermined signal range and changing the size of an embossing nip gap or pressure whenever the signal is outside of the range.

Method of controlling bulk in folded webs

A method and apparatus for forming fluff pads and the like wherein fluff particles are drawn from a hammermill through a plurality of ducts through a moving screen under vacuum and wherein the ducts are characterized by reverse bends to densify the particle stream at the outside of the curvature for generally perpendicular deposition on the screen.

Apparatus and method for stacking product such as flexible paper towels including a slotted wheel in combination with at least two endless chain conveyors equipped with finger assemblies which are orbitally offset so that while one finger assembly of one chain conveyor is accumulating a plurality of substacks, a first finger assembly of the other chain conveyor is being readied to take over the development of a successive stack, and programmable servo motor associated with the chain conveyors for varying the finger assembly advance during different portions of the orbital movement of the finger assemblies.

Apparatus and method for stacking

The invention includes a method and apparatus for applying an elastic strand to disposable diapers. It uses canted, spindle-equipped wheels for engaging an elastic strand, moving the elastic strand into a sinuous configuration and stretching the strand. Stripping belts apply the strand to a diaper component.

Method and apparatus for applying an elastic strand to a disposable

A surface winder and method in which a stationary upper winding roll, a lower movable winding roll and a rider roll form a three roll cradle, the lower winding roll being reciprocated to control the position of a partially wound core until the rider roll returns to cradle position after permitting passage of a previously wound log.

Growing community of inventors

Green Bay, WI, United States of America

James E Hertel