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EP4149748A4 - An apparatus and a method for opening ends of tubular web pieces to make block bottom bags - Google Patents

An apparatus and a method for opening ends of tubular web pieces to make block bottom bags Download PDF

Info

Publication number
EP4149748A4
EP4149748A4 EP21803935.2A EP21803935A EP4149748A4 EP 4149748 A4 EP4149748 A4 EP 4149748A4 EP 21803935 A EP21803935 A EP 21803935A EP 4149748 A4 EP4149748 A4 EP 4149748A4
Authority
EP
European Patent Office
Prior art keywords
block bottom
opening ends
tubular web
make block
bottom bags
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21803935.2A
Other languages
German (de)
French (fr)
Other versions
EP4149748A1 (en
Inventor
Gaurav LOHIA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lohia Corp Ltd
Original Assignee
Lohia Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lohia Corp Ltd filed Critical Lohia Corp Ltd
Publication of EP4149748A1 publication Critical patent/EP4149748A1/en
Publication of EP4149748A4 publication Critical patent/EP4149748A4/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/003—Opening or distending bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/005—Making flexible containers, e.g. envelopes or bags involving a particular layout of the machinery or relative arrangement of its subunits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/006—Controlling; Regulating; Measuring; Safety measures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/02—Feeding or positioning sheets, blanks or webs
    • B31B70/04—Feeding sheets or blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/262—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel to the direction of movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/56—Folding sheets, blanks or webs by rotary members co-operating with blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/58—Folding sheets, blanks or webs by moving belts or chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/001—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom
    • B31B2150/0014—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom having their openings facing transversally to the direction of movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/20—Flexible containers made from sheets or blanks, e.g. from flattened tubes the longitudinal axes of the containers being perpendicular to the direction in which the sheets or blanks are fed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/20—Shape of flexible containers with structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/02—Feeding or positioning sheets, blanks or webs
    • B31B70/10—Feeding or positioning webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B70/16—Cutting webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/84—Forming or attaching means for filling or dispensing contents, e.g. valves or spouts
    • B31B70/85—Applying patches or flexible valve inserts, e.g. applying film-like valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/92—Delivering
    • B31B70/98—Delivering in stacks or bundles
EP21803935.2A 2020-05-11 2021-05-08 An apparatus and a method for opening ends of tubular web pieces to make block bottom bags Pending EP4149748A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202011019753 2020-05-11
PCT/IB2021/053924 WO2021229395A1 (en) 2020-05-11 2021-05-08 An apparatus and a method for opening ends of tubular web pieces to make block bottom bags

Publications (2)

Publication Number Publication Date
EP4149748A1 EP4149748A1 (en) 2023-03-22
EP4149748A4 true EP4149748A4 (en) 2024-06-19

Family

ID=78525394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21803935.2A Pending EP4149748A4 (en) 2020-05-11 2021-05-08 An apparatus and a method for opening ends of tubular web pieces to make block bottom bags

Country Status (4)

Country Link
EP (1) EP4149748A4 (en)
CN (1) CN115697686B (en)
TW (1) TWI766683B (en)
WO (1) WO2021229395A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024180506A1 (en) * 2023-03-01 2024-09-06 Lohia Corp Limited An apparatus and a method for opening the ends of tubular web pieces

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2202431A (en) * 1936-07-18 1940-05-28 Rohrbacher Karl Manufacture of paper bags
US3803989A (en) * 1970-12-21 1974-04-16 Windmoeller & Hoelscher Apparatus for forming cross-bottom folding in bag manufacture
US6328683B1 (en) * 1998-12-23 2001-12-11 Windmöller & Hölscher Device for pulling up the ends of continuously transverse-conveyed flat tubular segments during the production of sacks or bags
EP3148788B1 (en) * 2014-05-20 2017-10-18 Lohia Corp Limited Apparatus and method of forming an open base at a bag body

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6042526A (en) * 1995-06-20 2000-03-28 B + B Maschinenbau Gmbh Method of and apparatus for making a bottom of a tubular section for formation of a bag or sack
IT1292875B1 (en) * 1997-04-23 1999-02-11 Ima Spa PACKAGING EQUIPMENT.
JPH1191007A (en) * 1997-09-25 1999-04-06 Dainippon Ink & Chem Inc Bag making machine
DE19840792C2 (en) * 1998-09-08 2003-04-24 Chronos Richardson Gmbh bag
DE102008017446A1 (en) * 2008-04-03 2009-10-15 Windmöller & Hölscher Kg Apparatus and method for producing sacks
EP2441574B1 (en) * 2010-10-14 2013-05-15 Starlinger & Co Gesellschaft m.b.H. Method and device for constructing open bases at end sections of tubular bag bodies
CN103240917B (en) * 2013-05-15 2015-04-22 常州市恒成塑料机械有限公司 Hot-gas welding press fit device for valve strips or bag bottom covering sheets of block bottom valve bags
JP5828925B2 (en) * 2014-02-21 2015-12-09 シコー株式会社 Bag bottom forming device
AT515542B1 (en) * 2014-04-03 2015-10-15 Worff Herwig Dipl Ing Method for producing sacks from a fabric tube
AT516092B1 (en) * 2014-05-20 2016-05-15 Lohia Corp Ltd Apparatus and method for transporting tubular bag bodies

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2202431A (en) * 1936-07-18 1940-05-28 Rohrbacher Karl Manufacture of paper bags
US3803989A (en) * 1970-12-21 1974-04-16 Windmoeller & Hoelscher Apparatus for forming cross-bottom folding in bag manufacture
US6328683B1 (en) * 1998-12-23 2001-12-11 Windmöller & Hölscher Device for pulling up the ends of continuously transverse-conveyed flat tubular segments during the production of sacks or bags
EP3148788B1 (en) * 2014-05-20 2017-10-18 Lohia Corp Limited Apparatus and method of forming an open base at a bag body

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021229395A1 *

Also Published As

Publication number Publication date
TWI766683B (en) 2022-06-01
WO2021229395A1 (en) 2021-11-18
EP4149748A1 (en) 2023-03-22
CN115697686B (en) 2025-03-14
CN115697686A (en) 2023-02-03
TW202210285A (en) 2022-03-16

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Ipc: B31B 160/20 20170101ALN20240515BHEP

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