公开(公告)号：US20190315503A1

公开(公告)日：2019-10-17

申请号：US16341850

申请日：2017-10-11

Applicant: Roll-O-Matic A/S

Inventor： John Buk JENSEN ,  Mads Sandahl CHRISTENSEN

IPC: B65B13/02 ,  B65C3/02

Abstract: The invention relates to a wrapping device (300) for wrapping a band around a wound up roll (5″), characterised in:—a storage (301) for said band (303) to be wrapped around said wound up roll (5″),—a first conveyor (330) positionable adjacent said wound roll (5″), for conveying said band (303) to said roll (5″),—said first conveyor (330) comprising a cylindrical drum configured for rotation about an axis (W),—said drum (330) having a surface configured for receiving and transferring said band (303) to said wound up roll (5″) by a vacuum applied to said band (303) via apertures (331) formed in said surface.

公开(公告)号：US20190001605A1

公开(公告)日：2019-01-03

申请号：US16064895

申请日：2016-12-15

Applicant: Roll-O-Matic A/S

Inventor： John Buk JENSEN ,  Mads Sandahl CHRISTENSEN ,  Jens Peder RASMUSSEN

IPC: B31B70/81 ,  B65D33/28

Abstract: Continuous method for making a web of draw strip bags, comprising providing a film web (F) wherein a first portion (11) and a second portion (12) overlap each other with free longitudinal side edges (7, 7′) thereof being essentially aligned with each other, back folding a first part (13) having said free side edge (7) of the first portion (11) outwardly away from said second portion (12) along a first fold line (B) by a first hemmer (120), and by folding a first subpart (15) of said first part (13) along a second fold line (C) whereby the free side edge (7) of the first portion (11) is brought into near alignment with said first fold line (B) while a second subpart (14) of said first part (13) of the first portion (11) remains back folded, whereby said first and second subparts (14, 15) of the first portion define a first hem (H1).

公开(公告)号：US20210114246A1

公开(公告)日：2021-04-22

申请号：US17052134

申请日：2019-05-01

Applicant: Roll-O-Matic A/S

Inventor： John Buk JENSEN ,  Mads Sandahl CHRISTENSEN

IPC: B26F1/20 ,  B26D7/26

Abstract: A cutting apparatus including an apparatus frame and a cutting station, for forming interconnected bags, is provided. The cutting station includes a rotary anvil having an axis of rotation and mounted to a first frame structure, a rotary cutting die disposed adjacent to said rotary anvil and having an axis of rotation parallel to said first axis of rotation, said rotary cutting die including a rotatable cylindrical shaft carrying a die blade, said rotary cutting die being mounted to a frame structure, and an adjustment mechanism for varying the distance between said anvil and said cutting die, said mechanism including a rotatable spindle having threaded portions of different pitch. A first threaded portion engages a threaded portion of said first or said second frame structure and said second threaded portion engaging a threaded portion of said apparatus frame.

公开(公告)号：US20180099832A1

公开(公告)日：2018-04-12

申请号：US15560114

申请日：2016-03-22

Applicant: Roll-O-Matic A/S

Inventor： John Buk JENSEN ,  Mads Sandahl CHRISTENSEN ,  Jens Peder RASMUSSEN

IPC: B65H18/10 ,  B65H19/30 ,  B65H18/02

CPC classification number: B65H18/10 ,  B65H18/021 ,  B65H19/30 ,  B65H2301/41354 ,  B65H2301/4139 ,  B65H2301/418526 ,  B65H2406/10 ,  B65H2406/33 ,  B65H2408/231 ,  B65H2701/191

Abstract: The invention relates to a roll making apparatus comprising spindles optionally having apertures for pressurized air and/or for applying a vacuum, the spindles being movable between a retracted position and an extended position; a roll engaging face configured to engage a roll carried by a spindle, upon the spindle carrying said roll moving to said retracted position, to move the roll relative to the spindle.