EP0318061A2 - Dispositif de fabrication à partir d'une bande thermoplastique tubulaire de sachets ou sacs préférentiellement munis de plis latéraux - Google Patents

Dispositif de fabrication à partir d'une bande thermoplastique tubulaire de sachets ou sacs préférentiellement munis de plis latéraux Download PDF

Info

Publication number
EP0318061A2
EP0318061A2 EP88121837A EP88121837A EP0318061A2 EP 0318061 A2 EP0318061 A2 EP 0318061A2 EP 88121837 A EP88121837 A EP 88121837A EP 88121837 A EP88121837 A EP 88121837A EP 0318061 A2 EP0318061 A2 EP 0318061A2
Authority
EP
European Patent Office
Prior art keywords
tubular film
welding
film web
sacks
rake
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.)
Withdrawn
Application number
EP88121837A
Other languages
German (de)
English (en)
Other versions
EP0318061A3 (fr
Inventor
Konrad Tetenborg
Helmut Hüwelmann
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Priority to EP88121837A priority Critical patent/EP0318061A3/fr
Publication of EP0318061A2 publication Critical patent/EP0318061A2/fr
Publication of EP0318061A3 publication Critical patent/EP0318061A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • 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
    • B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
    • B31B70/642—Uniting opposed surfaces or edges; Taping by applying heat or pressure using sealing jaws or sealing 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
    • B31B2155/00—Flexible containers made from 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
    • 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
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents

Definitions

  • the invention relates to a device for producing bags or sacks from a preferably provided with gusseted tubular film web made of thermoplastic material with guide and preferred rollers, through which the front end of the tubular film web, each provided with a bottom weld seam, freely hanging in the vertical direction intermittently by one bag each.
  • the object of the invention is therefore to improve the known device in such a way that sticking of the tubular web to the welding jaws of the welding device is avoided with certainty.
  • this object is achieved in a device of the generic type in that above the welding station, at least on the inside of the hanging tubular film web, there is provided a rake fixed about a horizontal axis and which can be swung out with each feed stroke such that the bottom seam is provided End of the tubular film web can be detached from the welding jaws and passed through the downstream cutting and clamping devices without hindrance.
  • the rake is expediently arranged in annular grooves of a preferred roller and can be pivoted about its axis of rotation. The pivoting movement of the rake can be from be derived from the opening movement of a clamping jaw arranged above the welding device, so that the construction is simplified with regard to the swivel drive.
  • a frame 1 has side walls 2 and 3, which are indicated in FIG. 2. Both side walls 2, 3 are connected to one another by a crossbar 4.
  • This cross-member 4 carries approximately in the middle a downwardly projecting fixed axis 21, on which a swivel arm 5 is mounted near the cross member 4, which via a pressure-piston-cylinder unit 6, the cylinder of which is held by a support piece, in one of two possible end positions can be moved.
  • pivot arm 5 designed as an angle lever carries at its free end a molded part 5 'and is provided in its angular range with a locking roller 7.
  • the function of these parts is discussed further below in the description.
  • a further vertical axis 8 is attached to the crossmember 4, which carries a four-armed turntable 9 below the swivel arm 5, which can be rotated by a motor 11 in cycles by 90 ° in each case by means of a toothed belt 10.
  • the direction of rotation of the turntable is indicated by an arrow A in FIG.
  • Fig. 2 it can be seen that the freely projecting arms 9a of the turntable 9 forming a hub, as it were, carry molded pieces 12 which each have two upstanding pins 13.
  • a lever 14 is mounted rotatably about each pin 13 and is designed as a gripper 15 at its free end.
  • Each of these grippers 15 rests under the force of the springs 16 on a counter surface 17, with each fitting being provided with two counter surfaces 17.
  • the mutually facing levers 14 of two adjacent arms 9a are functionally connected to one another via a link 18 such that the two associated grippers 15 open or close at the same time in order, for example, to be able to grip and hold a bag 19.
  • the grippers 15 are opened by the wedge-shaped or curved cam surfaces of the molded part 5 'of the support arm 5. If the support arm 5 is pivoted by extending the piston rod of the pressure medium-piston-cylinder unit 6, the molded part 5' presses the pressure rollers 20 connected to the levers 14 of the molding 12 apart so that the grippers 15 pivot about the pin 13 and detach from the associated counter surfaces 17. At the same time, the grippers 15 of adjacent shaped pieces are released via the handlebars 18. In the situation shown in Fig. 2 would therefore when the pressure medium-piston-cylinder unit 6 is actuated, the gripper units 15 facing the upper and the right edge of the drawing are released.
  • the safety roller 7 mounted in the angular region of the swivel arm 5 runs into a guide groove 22 of a locking plate 23 when the swivel arm is pivoted to open the grippers.
  • This locking plate 23 is securely connected to the turntable 9 by means of screw bolts 24, so that this is prevented from rotating by the locking roller 7 of the swivel arm 5, for as long as the molded part 5 'is between the rollers 20 of a molded part 12.
  • a hose 26 runs from a roll 25 from above into an inlet station 27.
  • This inlet station 27 is fixedly connected to the frame-shaped frame 1 and can be seen in more detail in FIG. 3.
  • 3 shows the central axis 8 of the cooling carousel and part of the turntable 9.
  • a hose section 19 provided with a bottom seam is clamped by the grippers 15 and the counter surfaces 17 of the turntable 9, but is initially still connected to the hose track 26.
  • the carrier 30 also has a knife groove 32 and a welding jaw 33.
  • a knife 34 dips into the knife groove 32 to separate the bag 19 from the tubular web 26, while a second welding jaw 35 interacts with the welding jaw 33 in order to provide the leading end of the tubular web 26 with a bottom seam.
  • the knife 34 and the welding jaw 35 are guided in parallel on one of the handlebars th second coupling rod 36 attached. Both coupling rods 28, 36 are actuated via pressure medium-piston-cylinder units 37.
  • a further clamping device is provided above the welding jaws 33 and 35, which clamps the tubular web 26.
  • This consists of a pivoting lever 39 provided with a clamping bar 38, which can be moved via a pressure medium-piston-cylinder unit 40.
  • An arm carrying a roller 41 is fixedly connected to the pivot lever 39, the roller 41 being at a distance from a guide piece 43 in the clamping position of the pivot lever 39.
  • This guide piece 43 is connected to a lever 44 which is held against a stop 46 via a spring 45.
  • the pivot point of the lever 44 lies on the axis of the preferred roller 47. It has a downward-facing shoulder which is designed as a counter-holder 48 to the terminal strip 38.
  • the pressure medium-piston-cylinder units 37 and 40 are first actuated after the formation of a bottom seam and a separating cut, and as a result the coupling rods 28, 36 and the lever 39 are pivoted away.
  • the roller 41 comes into contact with the cam surface of the guide piece 43.
  • This causes the counter-holder 48 to pivot in the direction of the arrow C, which on the one hand releases the freely hanging end of the web 26 from the welding jaw 33 and on the other hand deflects it. This deflection ensures that the web does not collide with the carrier 30 when it is advanced by a sack length by the preferred rollers 47 and 51 on the next cycle.
  • the preferred rollers are provided with annular grooves 49, 50, into which stripping fingers 52 and 53 engage.
  • the fingers 52 of these fingers are held in place on the frame and the fingers 53 are attached to the counter-holder 48 as wiping rakes.

Landscapes

  • Making Paper Articles (AREA)
EP88121837A 1987-05-11 1988-04-28 Dispositif de fabrication à partir d'une bande thermoplastique tubulaire de sachets ou sacs préférentiellement munis de plis latéraux Withdrawn EP0318061A3 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP88121837A EP0318061A3 (fr) 1987-05-11 1988-04-28 Dispositif de fabrication à partir d'une bande thermoplastique tubulaire de sachets ou sacs préférentiellement munis de plis latéraux

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3715685 1987-05-11
DE3715685 1987-05-11
EP88121837A EP0318061A3 (fr) 1987-05-11 1988-04-28 Dispositif de fabrication à partir d'une bande thermoplastique tubulaire de sachets ou sacs préférentiellement munis de plis latéraux

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP88106848A Division EP0294582B1 (fr) 1987-05-11 1988-04-28 Dispositif de fabrication de sachets ou de sacs à partir d'une gaine thermoplastique de préférence pourvue de plis latéraux
EP88106848.0 Division 1988-04-28

Publications (2)

Publication Number Publication Date
EP0318061A2 true EP0318061A2 (fr) 1989-05-31
EP0318061A3 EP0318061A3 (fr) 1989-07-26

Family

ID=25855451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88121837A Withdrawn EP0318061A3 (fr) 1987-05-11 1988-04-28 Dispositif de fabrication à partir d'une bande thermoplastique tubulaire de sachets ou sacs préférentiellement munis de plis latéraux

Country Status (1)

Country Link
EP (1) EP0318061A3 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1285228A (fr) * 1959-10-30 1962-02-23 Nat Distillers Chem Corp Procédé et appareil pour fabriquer des sacs
DE2833236C2 (de) * 1978-07-28 1982-11-25 Windmöller & Hölscher, 4540 Lengerich Vorrichtung zum Herstellen und Stapeln von Kunststoffbeuteln
DE2912457A1 (de) * 1979-03-29 1980-10-09 Stiegler Karl Heinz Maschine zum herstellen von schweissnaehten an einer thermoplastischen folienbahn

Also Published As

Publication number Publication date
EP0318061A3 (fr) 1989-07-26

Similar Documents

Publication Publication Date Title
DE19964295C2 (de) Vorrichtung zum Herstellen, Befüllen und Verschliessen von Säcken
DE3008633C2 (fr)
DE2418228B2 (de) Maschine zum herstellen und fuellen von beuteln oder saecken aus kunststoff
EP0439789A1 (fr) Procédé et dispositif pour la fabrication, le remplissage et la fermeture de sacs
DE69305392T2 (de) Vorrichtung zum Verschliessen von Behältern durch Heisssiegeln von Deckeln und Anlage mit einer solchen Vorrichtung
CH396742A (de) Vorrichtung zum Herstellen von Weichbeuteln an einer Füll- und Schliessmaschine
EP0294582B1 (fr) Dispositif de fabrication de sachets ou de sacs à partir d'une gaine thermoplastique de préférence pourvue de plis latéraux
EP0340315B1 (fr) Procédé et appareil pour amener des sacs à un poste de remplissage
EP1590246B1 (fr) Dispositif et procede pour fixer des films de fermeture sur des elements de versement situes sur des emballages composites
DE3006129C2 (de) Maschine zum Füllen und Verschließen von Säcken aus Kunststoff, vorzugsweise von Seitenfaltensäcken oder Flachsäcken
EP0534062B1 (fr) Procédé pour la fabrication, le remplissage et la fermeture de sacs
EP1201539A1 (fr) Dispositif pour fabriquer et de préférence remplir et fermer des sacs en matière plastique
EP0516979B1 (fr) Procédé pour la fabrication, le remplissage et la fermeture de sacs
DE3818910A1 (de) Vorrichtung zum fuellen und verschliessen von offenen saecken
EP0523394B1 (fr) Procédé pour la fabrication, le remplissage et la fermeture de sacs
DE19622086B4 (de) Verfahren und Vorrichtung zum automatischen Fördern von Säcken in Sackfüllanlagen
EP0318061A2 (fr) Dispositif de fabrication à partir d'une bande thermoplastique tubulaire de sachets ou sacs préférentiellement munis de plis latéraux
EP0161449B1 (fr) Dispositif pour former des sacs remplis
EP0544078B1 (fr) Dispositif pour la séparation d'une bande, des trançons tubulaires avec des soudures transversales et les empiler
DE2622291A1 (de) Verarbeitungsmaschine fuer in beutel zu verpackendes gut
DE3416155A1 (de) Verfahren und vorrichtung zur handhabung von abgefuellten saecken
DE3531457C2 (fr)
EP0133286A1 (fr) Machine à traiter des feuilles
CH415423A (de) Verfahren und Vorrichtung zur Herstellung und zum Verschliessen von Beutelpackungen aus schlauchförmigem Material
DE1265563C2 (de) Maschine zum Herstellen offener Kunststoffsaecke

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AC Divisional application: reference to earlier application

Ref document number: 294582

Country of ref document: EP

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE DE ES FR GB IT NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE DE ES FR GB IT NL

17P Request for examination filed

Effective date: 19890829

17Q First examination report despatched

Effective date: 19901221

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19911002