Abrégé

A folding or interfolding unit includes first and second folding or interfolding rolls to fold or interfold the sheets of paper according to a predetermined folding or interfolding configuration. The first and second folding or interfolding rolls include, respectively, a tubular body configured to rotate in a predetermined direction of rotation about a longitudinal rotation axis, and gripping groups, each of which includes a mechanical gripping member configured to move, at a gripping point, from an opening position to a closing position, which is arranged to mechanically hold the sheets up to a releasing point. Each gripping group includes at least one suction hole associated to each mechanical gripping member. A vacuum distribution device selectively pneumatically connects at least one suction hole at a time to a device for generating a predetermined vacuum degree, to cause the sheets of paper to adhere between starting and ending positions.

Classes IPC  ?

• B65H 45/20 - Plieuses en accordéon
• B65H 45/24 - Interposition de feuilles à plis, p. ex. papier à cigarettes ou papier hygiénique

Abrégé

A folding or interfolding unit of a plurality of sheets of paper comprising a first and a second folding or interfolding roll to fold, or interfold, the plurality of sheets of paper according to a predetermined folding or interfolding configuration, at a folding or interfolding zone. Each folding or interfolding roll comprises a tubular body which rotates about a longitudinal rotation axis oriented along a horizontal direction and a plurality of gripping groups integral in rotation with the tubular body. Each gripping group comprises a mechanical gripping member configured to move, at a gripping point, from a releasing configuration to a gripping configuration, where is arranged to mechanically hold the, or each, sheet up to a releasing point having a second angular position.

Classes IPC  ?

• B65H 45/24 - Interposition de feuilles à plis, p. ex. papier à cigarettes ou papier hygiénique
• B65H 45/16 - Plieuses rotatives

Abrégé

A machine for producing packages of folded or interfolded laminar products made of paper, in particular packages of napkins, tissues, towels, or similar products, comprising a folding or interfolding group, equipped with a first and a second folding or interfolding roll configured to fold or interfold a plurality of sheets of paper, and to obtain a stack of folded or interfolded sheets, according to a predetermined folding or interfolding configuration, which grows in height along a vertical forming direction. The machine comprises, furthermore, a separation group configured to separate a completed stack of folded or interfolded sheets, once that a predetermined height of said stack being formed is reached, from a following stack being formed. A transfer group is, furthermore, provided configured to transfer the completed stack on a discharge device configured to discharge the completed stack from the machine.

Classes IPC  ?

• B65H 31/10 - Récepteurs de piles avec support d'extrémité mobile disposé pour reculer au fur et à mesure que la pile se forme les articles étant empilés les uns sur les autres et par le sommet de la pile
• B65H 31/30 - Dispositions pour enlever les piles achevées
• B65H 31/32 - Dispositifs auxiliaires pour recevoir les articles pendant l'enlèvement d'une pile achevée

Abrégé

Folding or interfolding unit of a web, or sheet, of paper, comprising a first and a second folding or interfolding roll, of a web, or sheet, of paper, configured to fold or interfold, the web or sheet of paper according to a predetermined folding or interfolding configuration, at a folding or interfolding zone arranged between the first and the second folding or interfolding roll. The folding or interfolding unit comprise, furthermore, a first and a second plurality of detaching fingers configured to cause the web or sheet of paper to be detached from the external surface of the respective folding or interfolding roll.

Classes IPC  ?

• B65H 45/24 - Interposition de feuilles à plis, p. ex. papier à cigarettes ou papier hygiénique

Abrégé

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.

Classes IPC  ?

• B65H 20/12 - Progression des bandes par un rouleau aspirant

Abrégé

An advancement unit (1) for causing a plurality of sheets (5) of paper, or any other material permeable to air, to move along a predetermined advancing direction (101) in a machine for paper converting, comprises a cutting group (10) which divides a web (4) made of paper, or another material permeable to air, into the sheets (5). The advancement unit (1), furthermore, provides a transfer roll (20) positioned downstream del cutting group (10), having an external surface (25) and adapted to rotate at a first predetermined angular velocity (ω1) about a longitudinal rotation axis (120) and to hold, alternately, on a first and on a second predetermined portion (26, 27) of the external surface (25) the head edge (5a) and the tail edge (5b) of the sheets (5) coming from the cutting group (10). A displacement group (30) is, furthermore, positioned downstream of the transfer roll (20) to move a plurality of catching members (35) along a movement trajectory (130) comprising at least one curvilinear portion (131) and at least one straight portion (132) to move the sheets (5) in a partly overlapped configuration along a predetermined advancement trajectory (135).

Classes IPC  ?

• B65H 29/24 - Délivrance ou progression des articles à la sortie des machinesProgression des articles vers ou dans les piles par appareil à jet d'air ou aspirant
• B65H 29/66 - Progression en courants d'articles se chevauchant
• B65H 45/24 - Interposition de feuilles à plis, p. ex. papier à cigarettes ou papier hygiénique
• B65H 45/28 - Pliage combiné avec le découpage

Abrégé

A system (200) for setting a paper converting machine (1) for producing products starting from a reel (10) of paper associated to a label (15) on which a plurality of data or parameters (16) relating to the same is indicated, each of which graphically represented by at least one graphic element (17,19). The machine (1) comprises an unwinding group (20) which unwinds the reel (10) of paper obtaining a web of paper (100) and a displacement group (30) which causes the web of paper (100) to advance along the paper converting machine (1) at a determined advancement speed along a predetermined advancement path (101). The machine (1), furthermore, comprises a control unit (300) which operates the displacement group (30) in order to adjust the advancement speed of the web of paper (100) along the predetermined advancement path (101). The system provides an optical detection device (50) which recognizes and acquire each graphic element (17, 19) indicated on the label (15) of the reel (10) of paper.

Classes IPC  ?

• B65H 16/00 - Déroulage, dévidage des bandes

Abrégé

A machine (1) for producing packages of napkins, tissues, towels, or similar products, comprises a support frame (100) to support a feeding group (10) which feeds a first and a second web of paper (5a, 5b). The support frame (100) supports, furthermore, a cutting group (20) which cuts the first and second webs of paper (5a, 5b) respectively in a first and a second plurality of sheets (6) of predetermined length, and a folding or interfolding group (30) which folds or interfolds the sheets of paper (6) at a folding or interfolding zone, (35) in such a way to obtain a stack (150) of folded or interfolded sheets, according to a predetermined folding or interfolding configuration. The cutting group (20) and the folding or interfolding group (30) are mounted on the same support body (110) to move between an assembled position in which is supported by the support frame (100), and a disassembled position, in which is not supported by the support frame (100). A displacement group (50) is, furthermore, provided to displace the support body (110) between the assembled position and the disassembled position. The displacement group (50) and the support body (110) are provided with respective engagement portions (58,118) to engage with each other in such a way to allow the displacement group (50) to displace the support body (110) between the assembled position and the disassembled position

Classes IPC  ?

• B65H 45/24 - Interposition de feuilles à plis, p. ex. papier à cigarettes ou papier hygiénique
• B65H 45/20 - Plieuses en accordéon
• B65H 45/16 - Plieuses rotatives

Abrégé

Machine (1) for producing packages of folded or interfolded laminar products made of paper, in particular packages of napkins, tissues, towels, or similar products, comprising a folding or interfolding group, (10) equipped with a first and a second folding or interfolding roll (11a, 11b) configured to fold or interfold a plurality of sheets of paper, and to obtain a stack (50) of folded or interfolded sheets, according to a predetermined folding or interfolding configuration, which grows in height along a vertical forming direction (150). The machine (1) comprises, furthermore, a separation group (20) configured to separate a completed stack (50a) of folded or interfolded sheets, once that a predetermined height of said stack being formed (50) is reached, from a following stack being formed (50). A transfer group (30) is, furthermore, provided configured to transfer the completed stack (50a) on a discharge device (40) configured to discharge the completed stack (50a) from the machine. A displacement device (60) is, furthermore, provided operatively connected to the discharge device (40) and configured to move the discharge device (40) same along a displacement direction (160) towards/from the transfer group (30).

Classes IPC  ?

• B65H 45/24 - Interposition de feuilles à plis, p. ex. papier à cigarettes ou papier hygiénique
• B65H 31/30 - Dispositions pour enlever les piles achevées
• B65H 31/32 - Dispositifs auxiliaires pour recevoir les articles pendant l'enlèvement d'une pile achevée
• B65H 31/10 - Récepteurs de piles avec support d'extrémité mobile disposé pour reculer au fur et à mesure que la pile se forme les articles étant empilés les uns sur les autres et par le sommet de la pile

Abrégé

Folding or interfolding unit (100) of a plurality of sheets of paper (5) comprising a first and a second folding or interfolding roll (la, lb) to fold, or interfold, the plurality of sheets of paper (5) according to a predetermined folding or interfolding configuration, at a folding or interfolding zone (35). Each folding or interfolding roll (1a, 1b) comprises a tubular body (10) which rotates about a longitudinal rotation axis (101) oriented along a horizontal direction and a plurality of gripping groups (30) integral in rotation with the tubular body (10). Each gripping group (30) comprises a mechanical gripping member (15) configured to move, at a gripping point (P1"), from a releasing configuration to a gripping configuration, where is arranged to mechanically hold the, or each, sheet (5) up to a releasing point having a second angular position (P2"). It is, furthermore, provided at least one suction hole (16) associated to each mechanical gripping member (15) and configured to cause a sheet of paper (5) to be sucked to introduce the same into the mechanical gripping member (15). An actuation group (60) configured to cause a mechanical gripping member (15) at a time to move from the releasing configuration to the gripping configuration, and an adjustment group (50) to move the actuation group (60) with respect to the respective folding, or interfolding roll (1a, 1b) are furthermore provided.

Classes IPC  ?

• B65H 45/24 - Interposition de feuilles à plis, p. ex. papier à cigarettes ou papier hygiénique
• B65H 45/16 - Plieuses rotatives

Abrégé

A folding or interfolding unit (100) comprises a first and a second folding or interfolding roll (1a, 1b) to fold or interfold the sheets of paper (5) according to a predetermined folding or interfolding configuration. The first and second folding or interfolding rolls (1a, 1b) comprise, respectively, a tubular body (10) configured to rotate in a predetermined direction of rotation (110) about a longitudinal rotation axis (101), and a plurality of gripping groups (30) each of which comprising a mechanical gripping member (15) configured to move, at a gripping point (P1"), from an opening position to a closing position, in which is arranged to mechanically hold the sheets (5) up to a releasing point (P2"). Each gripping group (30) comprises, furthermore, at least one suction hole (16) associated to each mechanical gripping member (15) and configured to cause the sheet of paper (5) to be sucked in order to introduce the same into the gripping member (15). A vacuum distribution device is, furthermore, provided configured to selectively pneumatically connect at least one suction hole (16) at a time to a device for generating a predetermined vacuum degree in such a way to cause the sheets of paper to adhere between a position of starting suction (P1' ) and a position of ending suction (P2' ).

Classes IPC  ?

• B65H 45/16 - Plieuses rotatives
• B65H 45/24 - Interposition de feuilles à plis, p. ex. papier à cigarettes ou papier hygiénique

Abrégé

Plant (100) for producing folded or interfolded laminar products made of paper material, in particular packages of napkins, paper tissues, towels or similar products. The plant (100) comprises a pressing station (10) equipped with a displacement device (40) to move along a predetermined advancement direction (150) at least one stack (50) of folded or interfolded laminar products made of paper material. The plant (100) provides, furthermore, a pressing device (30a, 30b) arranged to move between a rest configuration, at which the stack (50) can be positioned at the pressing device same, and a pressing configuration, in which is arranged to apply a determined pressing action on the stack (50) of folded or interfolded laminar products made of paper material in order to reduce the height from a first value H1 to a second value H2 with H1

Classes IPC  ?

• B65H 31/30 - Dispositions pour enlever les piles achevées

Abrégé

A suction roll (1) of a web, or sheet, of paper, (5) comprises a tubular body (10) arranged to rotate about a longitudinal rotation axis (101), and provided with an external lateral surface (11) and with an internal lateral surface (12) pneumatically communicating with each other through a plurality of suction holes (3). The roll (1), furthermore, comprises a suction chamber (20) pneumatically connected to a vacuum generation device for generating a predetermined vacuum degree. It is, furthermore, provided a vacuum distribution device (50) to selectively put into pneumatic communication the suction chamber (20) with at least one row of suction holes (3), at determined angular positions of the tubular body (10) and to cause the processed sheet or web of paper to be sucked (5), and to adhere at a corresponding portion of the external lateral surface (11) arranged between a catching point and a releasing point (P1,P2) having determined angular positions. It is, furthermore, provided a displacement device (70) to move the vacuum distribution device (50), in such a way to change the angular position of the catching point (P1) and/or of the releasing point (P2) of the web or sheet of paper, and therefore, to anticipate, or postpone, the catching instant (ta) and/or the releasing instant (tr) in which the web, or sheet of paper adheres to, or leaves, the external lateral surface (11) of the suction roll (1).

Classes IPC  ?

• B65H 45/24 - Interposition de feuilles à plis, p. ex. papier à cigarettes ou papier hygiénique
• B65H 29/56 - Préleveurs d'articles, p. ex. depuis les éléments en progression pour prélever à partir d'organes des machines

Abrégé

Folding or interfolding unit of a web, or sheet, of paper, comprising a first and a second folding or interfolding roll, (1a, 1b) of a web, or sheet, of paper, configured to fold or interfold, the web or sheet of paper according to a predetermined folding or interfolding configuration, at a folding or interfolding zone (35) arranged between the first and the second folding or interfolding roll (1a, 1b). The folding or interfolding unit comprise, furthermore, a first and a second plurality of detaching fingers (40a, 40b) configured to cause the web or sheet of paper to be detached from the external surface (11) of the respective folding or interfolding roll, (1a, 1b). Furthermore, a first and a second actuation group (80a, 80b) are provided configured, respectively, to cause a back-and-forth oscillatory motion of the first and of the second plurality of detaching fingers (40a, 40b) towards/from the folding or interfolding zone (35), in such a way to cause the detachment of a respective web or sheet of paper, respectively, from the first and from the second folding or interfolding roll, (1a, 1b). The first and the second actuation group (80a,80b) are, furthermore, configured to postpone or anticipate, the oscillatory motion, respectively, of the first and of the second plurality of detaching fingers (40a, 40b) with respect to a predetermined reference oscillatory motion, in such a way to delay or anticipate, the instant (tr) in which the first and the second plurality of detaching fingers (40a, 40b) are arranged to cause the web or sheet of paper to be detached from the first and from the second folding roll, respectively.

Classes IPC  ?

• B65H 45/24 - Interposition de feuilles à plis, p. ex. papier à cigarettes ou papier hygiénique
• B65H 29/56 - Préleveurs d'articles, p. ex. depuis les éléments en progression pour prélever à partir d'organes des machines