US 5,337,969 A · Flying paster

Abstract

A flying paster is disclosed that achieves straight across splicing by utilizing web roll core drive technology. Splice calculations are based on input data sensed during preliminary acceleration of the new roll, which is disposed in a splicing position in the flying paster. Acceleration of the new roll is achieved by engagement between the center core shaft of a new roll and a movable brake and roll accelerator assembly. Then, calculations facilitate speed matching between the web running from a second, running roll mounted in the flying paster and the new roll. Splicing is facilitated by the utilization of two, two-sided adhesive strips. One adhesive strip is used to adhere the leading end of the new roll to the rest of the body of the new roll during the pre-splice speed matching, and the second adhesive strip is used for adhering the leading end of the new roll with the newly cut, trailing end of the running web. After splicing, the new, now-running web roll and the movable brake and roll accelerator assembly are moved from the splicing position to an operating position in the flying paster. In the latter position, control over the new, now-running roll is transferred from the movable brake and roll accelerator assembly to a fixed brake and brake accelerator assembly disposed in the flying paster adjacent to the operating position. The movable brake and roll accelerator assembly are then returned to a position adjacent the splicing position so as to be ready for the next, new roll.

Claims15

Dependent claims

An improved method for preparing a new roll of web material for splicing to a trailing end of a second, running roll, where the web material wrapped about the center core of the new roll defines a body having sides and an outer peripheral surface, and where the web material includes a leading end which, in turn, has a leading edge, the improved method comprising the steps of:

applying a first, two-sided, high-tack, low-tack adhesive strip selectively to one of the leading end of the new roll and to the peripheral surface of the new roll, one wrap back from the leading edge of the leading end of the new roll, so that the first adhesive strip is adjacent to the leading edge, when the leading end of the new roll is wrapped about the new roll, so that the low-tack adhesive is in surface-to-surface contact with the leading end, so that the high-tack adhesive is in surface-to-surface contact with the peripheral surface of the body of the new roll, one wrap back from the leading end, and so that the first adhesive strip holds the leading end against the body of the new roll;
and
applying a second, two-sided transfer adhesive strip to the outer peripheral surface of the leading end of the new roll so that the second adhesive strip extends across the width of the leading end, and so that the second adhesive strip is closed to but is non-overlapping with the leading edge of the leading end of the new roll.

An improved method for preparing a new roll of web material for splicing to a trailing end of a second, running roll in web splicer, where the new roll is mounted for rotation, where the web material wrapped about the center core of the new roll defines a body having sides and an outer peripheral surface, where the web material includes a leading end which, in turn, has a leading edge, and where the web splicer includes a brake and roll accelerator assembly, an encoder wheel, and a sensor, the improved method comprising the steps of:

applying a first, two-sided, high-tack, low-tack adhesive strip selectively to one of the leading end of the new roll and to the peripheral surface of the new roll, one wrap back from the leading edge of the leading end of the new roll, so that the first adhesive strip is adjacent to the leading edge, when the leading end of the new roll is wrapped about the new roll, so that the low-tack adhesive is in surface-to-surface contact with the leading end, so that the high-tack adhesive is in surface-to-surface contact with the peripheral surface of the body of the new roll, one wrap back from the leading end, and so that the first adhesive strip holds the leading end against the body of the new roll;
applying a second, two-sided transfer adhesive strip to the outer peripheral surface of the leading end of the new roll so that the second adhesive strip extends across the width of the leading end, and so that the second adhesive strip is close to but is non-overlapping with the leading edge of the leading end of the new roll;
making a mark, at a selected location, immediately behind the second adhesive strip, with the mark being chosen so that the mark may be tracked by the sensor;
interconnecting the new roll with the brake and roll accelerator assembly;
accelerating the new roll by actuation of the brake and roll accelerator assembly;
engaging the outer peripheral surface of the new roll with the encoder wheel so as to measure the rotational speed of the new roll and so as to enable the determination of the diameter of the new roll, the weight of the new roll, the angle between a predetermined brake impulse, which is imposed on the new roll by the brake and roll accelerator assembly, and the mark on the new roll, the frictional forces involved, and the efficiency of the brake and roll accelerator assembly;
removing the encoder wheel from contact with the outer peripheral surface of the new roll;
and
discontinuing the rotation of the new roll.

6 more elements

An improved method of splicing the leading end of a new roll of web material to the trailing end of a second, running roll, disposed in an operating position in a flying paster, wherein the new roll and the second roll are each supported for rotation on first and second center cores, respectively, where the web material wrapped about the center core shaft of the new roll defines a body having sides and an outer peripheral surface, where the new roll includes a leading end which, in turn, has a leading edge, where the flying paster includes a movable brake and roll accelerator assembly, a fixed brake and brake accelerator assembly, an encoder wheel and a sensor, the improved method comprising the steps of:

applying a first, two-sided, high-tack, low-tack adhesive strip selectively to one of the leading end of the new roll and to the peripheral surface of the new roll, one wrap back from the leading edge of the leading end of the new roll, so that the first adhesive strip is adjacent to the leading edge, when the leading end of the new roll is wrapped about the new roll, so that the low-tack adhesive is in surface-to-surface contact with the leading end, so that the high-tack adhesive is in surface-to-surface contact with the peripheral surface of the body of the new roll, one wrap back from the leading end, and so that the first adhesive strip holds the leading end against the body of the new roll;
applying a second, two-sided transfer adhesive strip to the outer surface of the leading end of the new roll so that the second adhesive strip extends across the width of the leading end, so that the second adhesive strip is close to but non-overlapping with the leading edge of the leading end of the new roll and so that the second adhesive strip overlies the first adhesive strip, when the leading end is wrapped about the body of the new roll;
making a mark, at a selected location, immediately behind the second adhesive strip, with the mark being chosen so that the mark may be tracked by the sensor;
loading the new roll in the flying paster so that the new roll is disposed in a predetermined splicing position in the flying paster;
interconnecting the ends of the center core of the new roll with the movable brake and roll accelerator assembly of the flying paster;
accelerating the new roll by actuation of the movable brake and roll accelerator assembly;
engaging the outer peripheral surface of the new roll with the encoder wheel so as to measure the rotational speed of the new roll and so as to enable the determination of the diameter of the new roll, the weight of the new roll, the angle between a predetermined brake impulse, which is imposed on the new roll by the movable brake and roll accelerator assembly, and the mark on the new roll, the frictional forces involved, and the efficiency of the movable brake and roll accelerator assembly;
removing the encoder wheel from contact with the outer peripheral surface of the new roll;
discontinuing the rotation of the new roll;
sensing the speed of the web running from the second roll;
rotating the new roll by the movable brake and roll accelerator assembly so that the speed of the new roll matches the sensed speed of the running web from the second roll;
pressing a portion of the running web into surface-to-surface contact with the outer peripheral surface of the new roll;
and
cutting the running web, adjacent to the portion of the running web, so that the trailing end of the running web is pressed into adhering contact with the outer-facing adhesive surface on the second adhesive strip on the leading end of the new roll.

11 more elements

Dependencies are inferred from the claim text.

Flying paster

Life of this patent

Flying paster

Life of this patent

Abstract

Claims15