B65H2406/33

Air-floating thin film bonding apparatus and its air-supplying roller

An air-floating thin film bonding apparatus and its air-floating roller is provided. The apparatus is composed of an air-floating rollers, which can blow out airflow at a specific angle to be applied to the base film with three-dimensional obstacles. The positive pressure provided by the airflow can be utilized to fill the gap space caused by the three-dimensional obstacles. Therefore, the base film can bond to the bonding film tightly to overcome the wrinkles and defects caused by the three-dimensional obstacle and the problem of unflatness of the film-bonding can be solved.

Suction roller structure for an interleaving machine

Suction roller structure for the pneumatic transport of sheets inside an interfolding unit, comprising a suction source, an external roller (3) rotating with respect to the cylinder (1) and provided with longitudinal rows of bores (4) angularly spaced and selectively communicating with said internal cavity (2) during the angular rotation of the roller (3), a distribution of pneumatic valves (5) that are normally closed, inserted between said internal cavity (2) and at least one bore (4), cam means (6) operatively associated with the rotation of the roller (3) and arranged to open one or more of said valves (5) at one or more angular positions taken by the roller (3).

Sheet conveying device and image forming apparatus incorporating the sheet conveying device
11021338 · 2021-06-01 · ·

A sheet conveying device includes a conveying body, a pressing body, and an attracting device. The conveying body conveys a sheet. The pressing body presses the sheet to a circumferential surface of the conveying body at an upstream side from an operation start position at which an operation with respect to the sheet starts, in a sheet conveying direction. The attracting device sucks and attracts the sheet onto the conveying body. The attracting device includes an attracting unit having an attracting region extending shorter than a distance between the pressing body and the operation start position. The attracting unit rotate together with the conveying body.

SUCTION ROLL OF A WEB, OR SHEET, OF PAPER IN A PAPER CONVERTING MACHINE

A suction roll of a web, or sheet, of paper, includes a tubular body that rotates about a longitudinal rotation axis. External and internal lateral surfaces of the suction roll pneumatically communicate with each other through suction holes. The roll includes a suction chamber pneumatically connected to a vacuum generation device for generating a predetermined vacuum degree. A vacuum distribution device selectively puts into pneumatic communication the suction chamber with at least one row of suction holes, at determined angular positions of the tubular body and causes the processed sheet or web of paper to be sucked, and to adhere at a corresponding portion of the external lateral surface arranged between a catching point and a releasing point having determined angular positions. A displacement device moves the vacuum distribution device to change the angular position of the catching or releasing point of the web or sheet of paper.

APPARATUS AND METHOD FOR FORMING AN ABSORBENT PAD

An apparatus for forming an absorbent pad for an absorbent sanitary article having a zone free of absorbent material to define a channel of the pad includes a forming drum, a first feed system for feeding a first web, a second feed system for feeding a second web, a spreader for spreading the absorbent material on the drum; a joining system for joining the first and second webs to define the channels. A first dispenser forms on the first web a layer of first adhesive substance according to a spreading pattern having zones free of the first adhesive substance corresponding to the channels. A second dispenser dispenses a second adhesive substance, whose adhesive force is greater than an adhesive force of the first adhesive substance, on the second web according to a pattern having a layer placed at a zone free of the first adhesive substance.

Folding machine for forming folded paper handkerchiefs
10870252 · 2020-12-22 · ·

A folding machine for paper handkerchiefs is disclosed. The folding machine includes a longitudinal folding unit and a transverse folding unit, wherein the longitudinal folding unit executes a longitudinal folding procedure to a paper web to obtain a paper web with longitudinal folds, and the transverse folding unit receives the paper web with longitudinal folds from the longitudinal folding unit and cuts it into paper handkerchiefs before executing a transverse folding procedure to the paper handkerchiefs, thereby completing the folding process for paper handkerchiefs. After being folded longitudinally and transversely, the paper handkerchief is effectively reduced in size for packaging and is convenient for users to carry.

Apparatus for mounting data carriers onto a carrier web
10843887 · 2020-11-24 · ·

The invention presented and described comprises an apparatus for mounting flat data carriers (1) on a continuous carrier web (2), having a data carrier supply device (3), a data carrier transfer device (4) and a carrier web positioning device (5), wherein the supply device (3) has a drive roller (6), a deflector (7) arranged substantially horizontally spaced apart from the drive roller (6) and at least one carrying belt (8) which runs around the drive roller (6) and deflector (7), wherein the carrying belt (8) has an upper run (9) which runs substantially horizontally in the feed direction of the data carriers (1), and a lower run (10) which runs in the opposite direction below said upper run, wherein the upper run (9) forms a transport path (11) for the data carrier (1) and is hydraulically connected to a suction box (12) which is arranged beneath in such a way that data carriers (1) which are located on the upper run (9) can be drawn by suction onto the carrying belt (8) by negative pressure, wherein the transfer device (4) has a transfer roller (14), which is provided with intake openings (13) on the circumference and which is hydraulically connected to a negative pressure source in such a way that data carriers (1) located on the outer casing of the transfer roller (14) can be drawn by suction onto the outer casing by negative pressure, wherein the transfer roller (14) has an entry region (15) which is adjacent to the suction box (12) of the supply device (3) and an exit region (16), which is spaced apart from the entry region (15) by a specific angle and is adjacent to the positioning device (5), and wherein at the exit region (16) of the transfer roller (14), a data carrier (1) which is located there on the outer casing of the transfer roller (14) can be transferred onto the carrier web (2).

A SYSTEM FOR HANDLING FLEXIBLE MATERIAL
20200361720 · 2020-11-19 · ·

A system for handling sheets of flexible material. The system comprises a first roller (5.2) which comprises a plurality of first releasable connectors (3.2) and a second roller (5.3) which comprises a plurality of second releasable connectors. The system further comprises an array of third releasable connectors (2.1) which is displaceable between at least the first and second rollers (5.2, 5.3). The first, second and third releasable connectors releasably attach to a sheet of flexible material in use.

A SUCTION ROLLER STRUCTURE FOR AN INTERLEAVING MACHINE
20200299084 · 2020-09-24 ·

Suction roller structure for the pneumatic transport of sheets inside an interfolding unit, comprising a suction source, an external roller (3) rotating with respect to the cylinder (1) and provided with longitudinal rows of bores (4) angularly spaced and selectively communicating with said internal cavity (2) during the angular rotation of the roller (3), a distribution of pneumatic valves (5) that are normally closed, inserted between said internal cavity (2) and at least one bore (4), cam means (6) operatively associated with the rotation of the roller (3) and arranged to open one or more of said valves (5) at one or more angular positions taken by the roller (3).

ADHESIVE PIECE
20200255245 · 2020-08-13 ·

The invention relates to an adhesive piece for the adhesive connection of material webs. The adhesive piece comprises an adhesive compound carrier which bears adhesive compound on two opposite sides, and at least one release liner which originally covers, at least in certain regions, the adhesive compound carrier and also the adhesive compound present there, protrudes at least in certain regions beyond the adhesive compound carrier, and is removable by a release liner removal apparatus.