EP0198552B1 - Equipement pour la production de produits coniques - Google Patents

Equipement pour la production de produits coniques Download PDF

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Publication number
EP0198552B1
EP0198552B1 EP86200615A EP86200615A EP0198552B1 EP 0198552 B1 EP0198552 B1 EP 0198552B1 EP 86200615 A EP86200615 A EP 86200615A EP 86200615 A EP86200615 A EP 86200615A EP 0198552 B1 EP0198552 B1 EP 0198552B1
Authority
EP
European Patent Office
Prior art keywords
webs
web
folded
angle
shifted
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.)
Expired
Application number
EP86200615A
Other languages
German (de)
English (en)
Other versions
EP0198552A1 (fr
Inventor
Robert Maria Jozef Hubert Eurlings
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.)
Bates Cepro BV
Original Assignee
Bates Cepro BV
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 Bates Cepro BV filed Critical Bates Cepro BV
Publication of EP0198552A1 publication Critical patent/EP0198552A1/fr
Application granted granted Critical
Publication of EP0198552B1 publication Critical patent/EP0198552B1/fr
Expired legal-status Critical Current

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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
    • B31B70/74—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
    • 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 an apparatus for manufacturing conical objects, such as valves for package bags, from two webs of flexible material supplied from respective rolls.
  • a valve is a tubular device made of flexible material, through which a bag of flexible material can be filled and which can close the opening in the bag after that.
  • the valve is slid about a filling pipe and in such a manner that the opening of the filling pipe extends through the inner end of the valve into the bag.
  • valve usually the shape of the valve is cylindrical, if slid about the filling pipe. During production and transport of the empty bag the valve is folded flat and thus has a rectangular shape.
  • a conical valve is not cylindrical, but has the shape of the surface of a flattened cone. During production and transport of the empty bag the valve is folded flat and has the shape of a trapezium.
  • the valve has two functions:
  • the invention aims to provide an apparatus for manufacturing conical objects, such as valves for bags, which do not have to be made of sealable material.
  • the apparatus comprises for each web a first pair of folding rods arranged at a vertical distance from each other and in planes at right angles to each other around which each web is led to fold the web in half longitudinally, a guiding device comprising web path deviating means to position the two folded webs at an acute angle to each other with the open edges facing each other, means for driving the thus positioned webs along the deviated path such that one folded web is inserted between the open edges of the other, means for severing the webs and means for glueing the overlapping portions of the webs.
  • the apparatus is used for manufacturing conical valves for bags, it is very practical to mount a grabbing device which is able to transfer the cut valve to a valve mounting device.
  • the folding device may consist of two pairs of optionally freely rotating, perpendicularly intercrossing rods.
  • the guiding device may consist of two web path deviating bars positioned in the same planes as the ones in which the webs come out of the folding device.
  • the driving means may be positioned between the guiding device and the cutting device, and may consist of rotatably driven driving rolls for each of the webs, in which the centre lines of the driving rolls are at an angle with respect to each other which is equal to the supplement of the angle at which the folded webs with the open sides facing each other can be shifted into each other.
  • This angle is preferably about 10°.
  • the glueing device may comprise two nozzle pipes which can cover the overlap of the shifted, folded webs with glue.
  • the cutting device and the grabbing device are preferably mechanically coupled.
  • the apparatus shown in Figure 1 for manufacturing conical objects substantially comprises two parallel, horizontal shafts 1 and 2 for rotatably supporting two rolls 3 and 4 of flexible material, in which roll 3 provides an upper web 5 and roll 4 a lower web 6.
  • Both webs 5 and 6 pass through a folding device 7, shown in more detail in Figure 2, and in which the webs are not only folded in two but also changed in direction over 90°.
  • FIG 2 the upper halve of the folding device 7 is shown, in which it is understood that the lower halve is the symmetrically reflected image of Figure 2.
  • the upper halve of the folding device consists of two pairs of optionally freely rotating, perpendicularly intersecting rods 13 and 14.
  • the rod 14 supporting the web folded in two naturally has a length being about half the length of rod 13 which supports the still unfolded web.
  • the guiding device 8 comprises two web path deviating bars 15 and 16, positioned in the same planes as the ones in which the webs 5 and 6 come out of the folding device 7.
  • the webs 5 and 6 are deviated in such a manner, that they move towards each other at an angle of 2x5° while remaining in the same plane.
  • the driving means 9 consists of two rotatably driven driving rolls 17 and 18 with centre lines being at a mutual angle which is equal to the supplement of the angle at which the open side of the folded web 6 is shifted through the driving roll 18 into the open side of the folded web 5.
  • This angle is optional, but preferably it is about 2x5°, so that the mutual angle of the centre lines will be 170°.
  • the driving rolls 17 and 18 pull the webs 5 and 6 both about the web path deviating bars 15 and 16 of the guiding device 8 and over the optionally freely rotating rods 13 and 14 of the folding device 7. This guarantees that correct folds are applied and that the webs are shifted into each other correctly.
  • FIG 3 the position of the cutting device 10, the glue supply 11, and the grabbing device 12 with respect to each other are shown.
  • the glue supply consists of two nozzle pipes 19 and 20 that can cover the overlaps 21 with glue.
  • the cutting device 10 and the grabbing device 12 start acting in the known manner to transfer the finished valve to a valve mounting device (not shown).

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  • Making Paper Articles (AREA)

Claims (8)

1. Appareil de fabrication d'objets coniques à partir de deux bandes (5, 6) de matériau flexible délivrées à partir de rouleaux respectifs (3, 4) comportant pour chaque bande une première paire de tiges de pliage (13, 14) espacées verticalement l'une de l'autre et dans des plans orthogonaux entre eux autour desquelles chaque bande est amenée pour la plier en deux longitudinalement, un dispositif de guidage (8) comportant des moyens (15, 16) de déviation de trajet de bande en vue de positionner les deux bandes pliées selon un angle aigu entre elles avec les bords ouverts se faisant face, des moyens (9) en vue d'entraîner les bandes ainsi positionnées le long du trajet dévié de telle sorte qu'une bande pliée est introduite entre les bords ouverts de l'autre, des moyens (10) en vue de couper les bandes et des moyens (11) en vue de coller les parties des bandes se recouvrant.
2. Appareil selon la revendication 1 de fabrication de valves coniques pour sacs, caractérisé en ce qu'un dispositif de préhension (12) est monté capable de transférer la valve coupée sur un dispositif de montage de valve.
3. Appareil selon la revendication 1 ou 2, caractérisé en ce que le dispositif de pliage (7) consiste en deux paires de barreaux (13, 14) se croisant perpendiculairement, pouvant tourner librement facultativement.
4. Appareil selon l'une quelconque des revendications précédentes 1 à 3, caractérisé en ce que le dispositif de guidage (8) consiste en deux barreaux (15, 16) de déviation de trajet de bande positionnés dans les mêmes plans que ceux dans lesquels les bandes (5 et 6) sortent du dispositif de pliage (7).
5. Appareil selon l'une quelconque des revendications précédentes 1 à 4, caractérisé en ce que les moyens d'entraînement (9) sont positionnés entre le dispositif de guidage (8) et le dispositif de coupe (10), et consiste en rouleaux d'entraînement (17 et 18) entraînés en rotation pour chacune des bandes, dans lequel les axes des rouleaux d'entraînement font un angle entre eux qui est égal au complément de l'angle selon lequel les bandes pliées avec les côtés ouverts se faisant face peuvent être déplacées l'une dans l'autre.
6. Appareil selon la revendication 5, caractérisé en ce que l'angle selon lequel les bandes pliées sont déplacées l'une dans l'autre, est d'environ 10°.
7. Appareil selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le dispositif de collage (11) comporte deux tuyaux distributeurs (19 et 20) qui peuvent enduire de colle le recouvrement des bandes pliées déplacées.
8. Appareil selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le dispositif de coupe (10) et le dispositif de préhension (12) sont couplés mécaniquement.
EP86200615A 1985-04-11 1986-04-11 Equipement pour la production de produits coniques Expired EP0198552B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8501068A NL8501068A (nl) 1985-04-11 1985-04-11 Installatie voor het vervaardigen van conische voorwerpen.
NL8501068 1985-04-11

Publications (2)

Publication Number Publication Date
EP0198552A1 EP0198552A1 (fr) 1986-10-22
EP0198552B1 true EP0198552B1 (fr) 1988-11-17

Family

ID=19845822

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86200615A Expired EP0198552B1 (fr) 1985-04-11 1986-04-11 Equipement pour la production de produits coniques

Country Status (3)

Country Link
EP (1) EP0198552B1 (fr)
DE (1) DE3661175D1 (fr)
NL (1) NL8501068A (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2172564A (en) * 1934-05-04 1939-09-12 Tablet fob use in fabricating
DE1215901B (de) * 1963-03-22 1966-05-05 Basf Ag Verfahren und Vorrichtung zum Herstellen eines Ventils an Saecken aus Kunststoffolie
FR1367557A (fr) * 1963-05-31 1964-07-24 Windmoller & Holscher Fa Machine de valve, tubulaire, pour un sac à valve à fond croisé et procédé et dispositif pour sa fabrication
CA934199A (en) * 1971-12-20 1973-09-25 Canadian Industries Limited Manufacture of plastic bags

Also Published As

Publication number Publication date
NL8501068A (nl) 1986-11-03
DE3661175D1 (en) 1988-12-22
EP0198552A1 (fr) 1986-10-22

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