Patent classifications
B26D1/385
Perforating apparatus and method for manufacturing a shaped line of weakness
A perforating apparatus and method includes a longitudinal cylinder axis about which a cylinder rotates. At least one shaped anvil bead is disposed on the cylinder. The cylinder including an anvil block and an anvil bead form a cavity. The cavity may be used to control the debris produced during the perforating process. A blade is disposed on a support to cooperate in contacting relationship with the anvil bead. A web is perforated as the web passes between the rotating cylinder and the support and the blade operatively engages with the anvil bead. The debris may be controlled by being drawn into the cavity prior to the point where the blade engages the anvil and, subsequently, being expelled after the point where the blade engages the anvil bead.
Perforating apparatus and method for manufacturing a shaped line of weakness
A perforating apparatus and method includes a longitudinal cylinder axis about which a cylinder rotates. At least one shaped anvil bead is disposed on the cylinder. The cylinder including an anvil block and an anvil bead form a cavity. The cavity may be used to control the debris produced during the perforating process. A blade is disposed on a support to cooperate in contacting relationship with the anvil bead. A web is perforated as the web passes between the rotating cylinder and the support and the blade operatively engages with the anvil bead. The debris may be controlled by being drawn into the cavity prior to the point where the blade engages the anvil and, subsequently, being expelled after the point where the blade engages the anvil bead.
PRINTING APPARATUS AND CUTTER DEVICE
A printing apparatus includes a cutter. The cutter includes a first blade and a second blade, and cuts a printing medium by causing the first blade to be in frictional contact with the rotatable second blade to be moved, in which a rotation center of the second blade is disposed on a first blade side with respect to a moving surface of the first blade.
Method of perforating a nonlinear line of weakness
A method for perforating a web with a perforating apparatus includes: rotating a cylinder about a longitudinal cylinder axis, wherein the cylinder comprises at least one shaped blade; operatively engaging a moveable support with the cylinder; positioning an anvil disposed on the support so as to cooperate in contacting relationship with the shaped blade, wherein at least one of the blade and the anvil comprise a plurality of teeth, and wherein adjacent teeth are separated by a recessed portion; feeding a web between the cylinder and the support; and perforating the web as the anvil cooperates in contacting relationship with the shaped blade disposed on the rotating cylinder.
Apparatus and Methods for Producing Shrink Wrap Packaging
A vacuum table (18) includes an introduction section (102) in fluid communication with a vacuum chamber (120) and a compartment (139) dividable by an adjustment partition (156) into primary and secondary vacuum chambers (139a, 139b). Adjustment plates (130) having adjustment apertures (138) are positionable over apertures (128) of the conveying surface (100) of the vacuum table (18) generally perpendicular to the conveying direction. Film (20) extends from between the nip of pinch rollers (12, 13) to the conveying surface (100) and is tensioned therebetween to be cut in excess of 105 cuts per minute by a servo motor controlled rotary cutter (30) which stops after each cut. The shaft (32) of the rotary cutter (30) includes a bore (310) extending from the idle end to provide servo-control loop stability.
Apparatus and methods for producing shrink-wrap packaging
A vacuum table (18) includes an introduction section (102) in fluid communication with a vacuum chamber (120) and a compartment (139) dividable by an adjustment partition (156) into primary and secondary vacuum chambers (139a, 139b). Adjustment plates (130) having adjustment apertures (138) are positionable over apertures (128) of the conveying surface (100) of the vacuum table (18) generally perpendicular to the conveying direction. Film (20) extends from between the nip of pinch rollers (12, 13) to the conveying surface (100) and is tensioned therebetween to be cut in excess of 105 cuts per minute by a servo motor controlled rotary cutter (30) which stops after each cut. The shaft (32) of the rotary cutter (30) includes a bore (310) extending from the idle end to provide servo-control loop stability.
Cutting system
A cutting system has a processing machine and a sheet cutter which selectively attaches to the processing machine. The processing machine includes a conveying mechanism, a processing unit, and a lid. The conveying mechanism is configured to convey the sheet. The processing unit is configured to process the sheet conveyed by the conveying mechanism. The lid is configured to open and close a conveyance path through which the sheet is conveyed. The sheet cutter includes a main body, a cutting unit attached to the main body and including a cutter slidable in a first direction, the cutting unit being configured to cut, along in the first direction, the sheet with the cutter, and an attacher configured to attach the main body to the processing machine. In a case where the main body is attached to the processing machine, the main body is positioned relative to the lid.
CUTTING DEVICE AND PRINTING DEVICE
A cutting device includes: a cutter positioned on a conveyance path for conveying a fabric medium and configured to cut the fabric medium into a predetermined length; a placement surface defining a part of the conveyance path receiving the cut fabric medium; a rotation shaft positioned above the conveyance path and configured to rotate in a conveyance direction of the fabric medium; a paddle portion attached to the rotation shaft and configured to scrape the fabric medium placed on the placement surface in the conveyance direction by moving in the conveyance direction while in contact with the placement surface in accordance with a rotation operation of the rotation shaft; and a driver configured to transmit a driving force to the cutter and the rotation shaft, and such that a cutting operation of the cutter and the rotation operation of the rotation shaft are performed in conjunction with each other.
Fiber/plastic sheet product cutting-folding machine
A fiber/plastic sheet product cutting-folding machine composed of a cutter, a rotary cutting wheel, one or more differential wheels, a first folding wheel and a second folding wheel is disclosed. The cutter and the rotary cutting wheel are adapted to cut off a fiber/plastic sheet product passing therebetween so that each cut piece of fiber/plastic sheet product has a straight cut edge. The differential wheel enables each two successive cut pieces of fiber/plastic sheet product to be partially overlapped, forming a stack of interfold fiber/plastic sheet product. Subject to the application of the fiber/plastic sheet product cutting-folding machine, each stack of interfold fiber/plastic sheet product is kept neat.
METHOD OF PERFORATING A NONLINEAR LINE OF WEAKNESS
A method for perforating a web with a perforating apparatus includes: rotating a cylinder about a longitudinal cylinder axis, wherein the cylinder comprises at least one shaped blade; operatively engaging a moveable support with the cylinder; positioning an anvil disposed on the support so as to cooperate in contacting relationship with the shaped blade, wherein at least one of the blade and the anvil comprise a plurality of teeth, and wherein adjacent teeth are separated by a recessed portion; feeding a web between the cylinder and the support; and perforating the web as the anvil cooperates in contacting relationship with the shaped blade disposed on the rotating cylinder.