Winding – tensioning – or guiding – Convolute winding of material – With cutting – perforating – or notching
Reexamination Certificate
2001-11-08
2003-06-17
Matecki, Kathy (Department: 3653)
Winding, tensioning, or guiding
Convolute winding of material
With cutting, perforating, or notching
C242S542300
Reexamination Certificate
active
06578788
ABSTRACT:
CROSS REFERENCE TO RELATED APPLICATION
This application is related to an U.S. application Ser. No. 10/008,756 entitled Roll of Adhesive Labels for Cutting Tape, filed on even date herewith, and to application Ser. No. 10/008,757 entitled Adhesive Applicator.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a system and a method for loading a pre-determined amount of band or tape from a roll sufficient for an entire turn-up process. In particular, the present invention relates to a system for dispensing a pre-determined length of a cutting tape into a cross web track of an apparatus for cutting a moving web of paper.
2. Related Art
The proper length of a cutting tape is primarily determined by the width of the web and the width of a cross web track and an extra length of tape needed to properly spiral onto empty paper reel to which the web is transferred.
In the prior art systems, see for example U.S. Pat. No. 5,046,675 dated Sep. 10, 1991, a loop was formed prior to cutting a tape to its correct length. The paper machine pulls the reserve or extra tape from a longitudinal slot during turn-up. Some processing difficulties may arise during such operation. The tape is highly tensioned and may present problems in fast paper machines. Accordingly, there is a need for an improved dispensing and accumulating cutting tape system that enables smooth tangential release of the cutting tape into a cross web track of paper machine and provides a pre-determined single length of the cutting tape before sending it into the cross web track.
It is an object of the present invention to provide an accumulator of a cutting tape that winds and stores a pre-determined length of a cutting tape ready to be dispensed outwardly into a cross web track.
It is another object of the present invention to provide an accumulator of a cutting tape having a roll rotating inside the accumulator at a speed faster than the speed of a cutting tape entering the accumulator to wind the cutting tape around the roll.
It is a further object of the present invention to provide an accumulator of a cutting tape having a roll rotating inside the accumulator and coupled to a clutch mechanism to vary its speed inversely proportional to the speed of the cutting tape winding on the roll.
It is an additional object of the present invention to provide for an accumulator of a pre-determined length of a cutting tape to be dispensed at an appropriate selected time and an adhesive applicator to apply a double-sided pressure sensitive adhesive, preferably paper, strip to a lower surface of the cutting tape prior to entering a cross web track.
It is a related object of the present invention to provide for an accumulator and an adhesive applicator dispensing system including a sensor to detect presence or absence of an adhesive strip on a lower surface of a cutting tape and an abort block to divert a cutting tape having no adhesive strip.
Still another object of the present invention is to provide for an improved dispensing and accumulating cutting tape system that enables smooth tangential release of the cutting tape into a cross web track beneath paper machine.
BRIEF SUMMARY OF THE INVENTION
The present invention relates to a system for dispensing a pre-determined single length of a cutting tape into a cross web track of an apparatus for cutting a moving web. The system includes a first driving roll and a first press roll selectively movable toward and away from the first roll by an actuator. The first roll and first press roll sandwich a cutting tape therebetween when the first press roll is moved toward the first roll and causes a cutting tape to be passed through a cutting station. A second driving roll and a second press roll selectively moves toward and away from the second roll by an actuator with the second driving roll being operatively coupled to the first driving roll. The second press roll receives a cutting tape after passage through the cutting station with a cutting tape being sandwiched between the second roll and the second press roll for moving a cutting tape in one direction into an entryway of a container. The container includes a hollow therein formed by a circumferential surface in which the entryway is located. The circumferential surface has a lateral slot therein located spacedly from the entryway, and the hollow being formed by a plate extending laterally of the circumferential surface. The plate has an arcuate slot extending at its inner end generally medially of the plate to its outer end adjacent the lateral slot. A rotatable press roll has a fixed axis of rotation with its outer surface extending partially through the lateral slot beyond the circumferential surface of the hollow, and an accumulator roll having a rotating first shaft extends through the arcuate slot with the accumulator roll being within the hollow and being located adjacent to and urged toward the rotatable press roll for receiving a cutting tape therebetween and wrapping a cutting tape around the accumulator roll. The accumulator roll rotates at a speed greater than the linear speed of a cutting tape entering the entryway, and the accumulator roll increases in diameter by a cutting tape being wound therearound causing the first shaft to move from the outer end of the arcuate slot toward the inner end. The second driving roll and the press roll maintain a cut end portion of a cutting tape therebetween with substantially its remainder wound on the accumulator roll, and the second driving roll moving a cutting tape in another direction opposite to the one direction to pull a cutting tape from around the accumulator roll in a clockwise direction out of the entryway. A clutch mechanism coupled to the accumulator first shaft varies speed of rotation of the roll in an inverse proportion relative to the diameter of tape wound around the accumulator roll.
The system further includes a third driving roll and a third press roll selectively movable toward and away from the third roll by an actuator, while the third roll and third press roll sandwich a cutting tape therebetween when the third press roll is moved toward the third roll and moves a cutting tape through a cross web track of an apparatus for cutting a moving web, and the third driving roll being operatively coupled to the first and second driving rolls. A reversible motor is positioned spacedly upstream from the third driving roll and being coupled to the first, second and third driving rolls for providing rotative power thereto.
A fourth roll rotatable in either direction to assist the second driving roll in moving a cutting tape inwardly and outwardly of the entryway is positioned adjacent the entryway and spaced from the second driving roll.
An adhesive applicator to apply a strip of double-sided pressure sensitive adhesive to a lower surface of a cutting tape is also included in the system. The applicator is positioned upstream from the third driving roll and includes a housing having an upper portion and a lower portion, a rotatable spindle for receiving a supply roll having layers of spaced strips with exposed face sides and unexposed back sides with each side having a pressure sensitive adhesive thereon and with back sides being adhered to an elongated continuous release liner. The spindle is positioned generally medially of the upper portion, a stationary nose member is mounted to the housing and has a rounded tip exposed outwardly of the housing and is disposed at a proximal end of the upper portion of the housing above the spindle and supply roll is disposed thereon. A solenoid activated press roll is positioned diametrically opposite and above the rounded tip and is vertically movable downwardly to force an exposed face side of an adhesive strip located on release liner located on the rounded tip into contact with a lower surface of a generally horizontally incoming cutting tape to cause an exposed face side to adhere to a lower surface of a cutting tape and separate from a release liner when a release liner rotates around the tip. The appli
Middlebrooks Thomas B.
Rodriguez Peter A.
Kim Sang
Matecki Kathy
Yeager Arthur G.
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