EP3711941A1 - Procédé amélioré de fabrication de sacs de transport en matière plastique doté d'une bande de renforcement collée - Google Patents

Procédé amélioré de fabrication de sacs de transport en matière plastique doté d'une bande de renforcement collée Download PDF

Info

Publication number
EP3711941A1
EP3711941A1 EP20160656.3A EP20160656A EP3711941A1 EP 3711941 A1 EP3711941 A1 EP 3711941A1 EP 20160656 A EP20160656 A EP 20160656A EP 3711941 A1 EP3711941 A1 EP 3711941A1
Authority
EP
European Patent Office
Prior art keywords
film web
adhesive
coated
plastic
plastic film
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
EP20160656.3A
Other languages
German (de)
English (en)
Inventor
Willi Fenninger
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.)
Lemo Maschinenbau GmbH
Original Assignee
Lemo Maschinenbau GmbH
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 Lemo Maschinenbau GmbH filed Critical Lemo Maschinenbau GmbH
Publication of EP3711941A1 publication Critical patent/EP3711941A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
    • B26D5/26—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed wherein control means on the work feed means renders the cutting member operative
    • 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
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B70/142—Cutting, e.g. perforating, punching, slitting or trimming using presses or dies
    • 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
    • B31B70/86—Forming integral handles or mounting separate handles
    • B31B70/876—Forming integral handles or mounting separate handles involving application of reinforcement strips or patches; involving reinforcements obtained by folding
    • 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
    • B31B2155/00—Flexible containers made from webs
    • B31B2155/003—Flexible containers made from webs starting from tubular 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
    • 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
    • B31B70/14—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
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B70/16—Cutting webs
    • B31B70/18—Cutting webs longitudinally
    • 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
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/62—Uniting opposed surfaces or edges; Taping by adhesives
    • 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
    • B31B70/86—Forming integral handles or mounting separate handles
    • B31B70/874—Forming integral handles or mounting separate handles involving punching or cutting

Definitions

  • the invention relates to a method for producing plastic carrier bags with stuck-on reinforcement strips, in which a plastic film web is guided past an adhesive application device by means of a transport device and is coated on one side with adhesive, the film web coated with adhesive is divided into sheet-like sections by means of a separating device, the coated section are deposited with the adhesive surface on a double-layer plastic film web and the double-layer film web is then provided with punched handles and separated into the plastic carrier bags by a separation process, according to the features of the preamble of claim 1.
  • a reinforcing strip is applied to a plastic web by means of a suitable adhesive in order to be able to better distribute the forces occurring there (for example the tensile forces arising from a grip hole).
  • a method for the production of plastic carrier bags with glued-on reinforcement strips in which a plastic film web is guided past an adhesive application roller by means of a transport device and is coated on one side with adhesive, the film web coated with adhesive or sheet-like sections of the coated film web with the adhesive surface on a double-layer plastic film web are deposited and the double-layer film web is then provided with punched handles and separated into the plastic carrier bags by means of a separating device through a separating process, the with the The film web to be coated is guided past the adhesive application roller, the film web resting against the adhesive application roller in the area of the two lower quadrants, based on the circular roller cross-section, and the adhesive application roller with a roller section delimited by lateral doctor blades in the area of the two upper quadrants of the roller cross-section immersed in an adhesive bath containing a viscous hotmelt adhesive based on synthetic rubber / hydrocarbon resin.
  • the invention is based on the object of providing an improved method for producing plastic carrier bags with reinforcement strips stuck on.
  • the reinforcement strip can also be significantly larger for corresponding applications (e.g. for heavy-duty purposes). So it depends on the particular application.
  • a drive of the transport device and a drive of the separating device are synchronized with one another by means of an electronic control device.
  • This variability enables the separation of previously connected and jointly operated drive components (i.e. mechanically coupled drive components), transport of the reinforcement material and the separation of the section length of the reinforcement material.
  • State-of-the-art technology makes it possible, via a suitably programmed or programmable electronic control device, to electronically control at least two physical drives (for the advance of the plastic film web from which the reinforcement strip is made, as well as for the separation and also for the advance of the layer material, in particular the double-layer plastic film web) to couple to each other as precisely as if they were firmly connected.
  • the synchronization takes place in such a way that after a predetermined feed movement of the plastic film web the separating device is actuated in the same cycle.
  • a non-synchronous phase can be used to carry out the separating process sooner or later. This is done in such a way that the drive that moves the separating unit can be moved faster or slower outside the synchronous separating phase in order to allow more or less reinforcement material to pass until the next separating process is carried out.
  • the previously usual mechanically almost coupled process can be set and thus achieved by means of an electronic fixed coupling and the 100% synchronous movement sequence of both drives. This then represents the process previously known as the state of the art, which under certain circumstances can be the optimal solution for implementing the requirements.
  • there would now be gaps between the individual pieces of reinforcement material which in turn leads to a certain and not to be underestimated material savings, but can also bring about other desired effects (for example special optical features or procedural or usage-related advantages).
  • a drive of the transport device and a drive of the separating device are synchronized with one another by means of an electronic control device, but also that the feed ( and thus also the drive effecting this feed) is also synchronized with the drive of the transport device and the drive of the separating device in order to ensure that the respective reinforcement strip is applied (glued) to its target position of the plastic carrier bag on which the carrier opening to be made is later located. becomes.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
EP20160656.3A 2019-03-05 2020-03-03 Procédé amélioré de fabrication de sacs de transport en matière plastique doté d'une bande de renforcement collée Pending EP3711941A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019105510 2019-03-05

Publications (1)

Publication Number Publication Date
EP3711941A1 true EP3711941A1 (fr) 2020-09-23

Family

ID=69770466

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20160656.3A Pending EP3711941A1 (fr) 2019-03-05 2020-03-03 Procédé amélioré de fabrication de sacs de transport en matière plastique doté d'une bande de renforcement collée

Country Status (2)

Country Link
EP (1) EP3711941A1 (fr)
DE (1) DE102020105665A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1704175A1 (de) * 1967-07-28 1972-01-20 Hans Lehmacher Tragetaschen oder Tragsaecke sowie Verfahren und Vorrichtung zu deren Herstellung
EP0419813A1 (fr) * 1989-09-25 1991-04-03 WindmÀ¶ller & Hölscher Dispositif de contrôle de machines pour la fabrication des sacs
DE3936228C2 (fr) 1989-10-31 1992-12-17 Lemo M. Lehmacher & Sohn Gmbh, 5216 Niederkassel, De
US5876317A (en) * 1994-07-19 1999-03-02 Philip Morris Incorporated Method and apparatus for preparing blanks

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1704175A1 (de) * 1967-07-28 1972-01-20 Hans Lehmacher Tragetaschen oder Tragsaecke sowie Verfahren und Vorrichtung zu deren Herstellung
EP0419813A1 (fr) * 1989-09-25 1991-04-03 WindmÀ¶ller & Hölscher Dispositif de contrôle de machines pour la fabrication des sacs
DE3936228C2 (fr) 1989-10-31 1992-12-17 Lemo M. Lehmacher & Sohn Gmbh, 5216 Niederkassel, De
US5876317A (en) * 1994-07-19 1999-03-02 Philip Morris Incorporated Method and apparatus for preparing blanks

Also Published As

Publication number Publication date
DE102020105665A1 (de) 2020-09-10

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