TH10044A - A sheet material winding machine with an improved cutting mechanism. - Google Patents

Abstract

Improvements in sheet winding machines featuring perforating rollers and integrated cutting rollers incorporate a series of cutting blades, some mounted on the main rollers and others on the cutting rollers. The moving sheet material is transferred from the unwinding main roll and wound into a product roll—for example, a roll of toilet paper or absorbent paper with multiple separate tearable sheets. The improvements utilize parallel-moving cutting blades that can be spaced closer together than traditional cutting blades. This allows for greater sheet material stretching, resulting in more precise tearing. The cutting blades are also designed to work over longer lengths of moving sheet material in the winding machine than conventional machines, enabling cuts along the transverse perforations rather than uneven transverse tearing. This blade arrangement widens the working range where the perforations in the moving sheet material are triggered at the end of the roll. The perforation relationship between the cutting mechanism and the moving sheet material is facilitated to maintain a wider working range at all times while other components remain constant. This invention is particularly useful with sheet materials such as crepe paper, which must be strongly gripped in the direction of movement of the sheet winding machine before the crepe paper is cut along weak transverse lines such as periodic cuts or perforations.

Claims (7)

1.Improved slitting mechanism in mechanical type sheet roll forming machine for unrolling the main roll of material and passing the sheet material through the sheet roll forming machine There is a mechanism for easily tearing perforation lines in sheet materials at the length of the substrate in accordance with the direction of roll forming machine. Cutting mechanism for cutting the sheet material along the perforation lines at the length of the roll. And there is a mechanism for winding sheet material with the same length as the product rolls into product rolls. And which the cutting mechanism consists of the main roller, the cutting roller, the mechanism for rotating the main roller and the cutter roller in relative timing. And there is a set of cutting blades in which some cutting blades are mounted on the main roller and some are mounted on the cutting roller and these cutting blades move the rotators in and out of the Grind each other without touching each other by the rotation of the main roller and the dedicated cutting roller, but in cutting the sheet material to the end of roll The enhancements include a mechanism for keeping the cutter blades in parallel and at the same speed as the blades move in and out of the grind without contact. 2. The improved cutting mechanism as described in claim No. 1, which includes a mechanism for keeping the cutting blades in parallel position at all times. 3.The improved cutting mechanism as described in claim 2, in which the mechanism for keeping the cutting blades in a constant parallel position, is equipped with a mechanism for moving the cutter rollers in a aligned orbit. With the roller and the timing is relative, and there is a mechanism for rotating the cutting roller on the axis of the cutting roller at the perfect angular speed as the main roller and relative to the specified angular position And there is a mechanism to activate the orbital mechanism along with the rotation of the main roller to keep the cutting blades in parallel position at all times. 4. The improved cutting mechanism as described in Clause 1, where a set of cutting blades consists of at least three blades. And at least one cutting blade is installed on each roller. 5.The improved cutting mechanism as stated in Claim 1, where the cutting blade set consists of at least four cutting blades and at least two cutting blades mounted on Each roller 6. The improved cutting mechanism is described in Claim No. 1, in which a set of cutting blades consists of five cutting blades. Where two cutting blades are mounted on the cutting roller and three cutting blades are mounted on the main roller. 7. The improved cutting mechanism as described in claim 1, where the cutting blades are installed at circumferential distances.