EP0098276B1 - Procede et dispositif pour la fabrication d'un sac a valve de fermeture automatique - Google Patents

Procede et dispositif pour la fabrication d'un sac a valve de fermeture automatique Download PDF

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Publication number
EP0098276B1
EP0098276B1 EP83900188A EP83900188A EP0098276B1 EP 0098276 B1 EP0098276 B1 EP 0098276B1 EP 83900188 A EP83900188 A EP 83900188A EP 83900188 A EP83900188 A EP 83900188A EP 0098276 B1 EP0098276 B1 EP 0098276B1
Authority
EP
European Patent Office
Prior art keywords
valve
folding
glue
cylinder
paper
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
EP83900188A
Other languages
German (de)
English (en)
Other versions
EP0098276A1 (fr
Inventor
Masayoshi Yokomatsu
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.)
Fischer and Krecke GmbH and Co KG
Original Assignee
Fischer and Krecke GmbH and Co 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 Fischer and Krecke GmbH and Co KG filed Critical Fischer and Krecke GmbH and Co KG
Priority to AT83900188T priority Critical patent/ATE29428T1/de
Publication of EP0098276A1 publication Critical patent/EP0098276A1/fr
Application granted granted Critical
Publication of EP0098276B1 publication Critical patent/EP0098276B1/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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S493/00—Manufacturing container or tube from paper; or other manufacturing from a sheet or web
    • Y10S493/916—Pliable container
    • Y10S493/927—Reclosable
    • Y10S493/929—Reclosable with valve

Definitions

  • the invention relates to a device for producing a single-layer or multi-layer valve sack made of paper or film with a self-closing valve.
  • Paper valve sacks are widely used for packaging powdery or granular goods.
  • the spreadable or flowable material can be introduced via automatic filling systems, and the valve, which closes itself after filling due to the pressure effect of the filling material, makes an additional work step for closing the filled sack mostly superfluous, or additional sealing sheets applied are self-closing properties of the valve significantly relieved.
  • the cross-bottom valve bag is of great importance. While the sewn sack on the one hand offers the advantage of inexpensive manufacture, there is, however, the disadvantage that such a sack is not absolutely leakproof. On the other hand, the funnelêt valve sack has good tightness, but it is more expensive and requires more material to manufacture.
  • valve sheet is manufactured in an associated valve manufacturing unit in-line and in time with the sack machine, fed to the gluing point and pressed in a pressing station and thereby firmly adhered to the inner sack track.
  • the valve manufacturing unit is part of an overall system specially designed for the production of valve bags made of plastic film.
  • the invention has for its object to provide a device using conventional sack machines, as far as possible, with which such proposed side-gusset valve bags can be inexpensively manufactured with a valve inserted into the longitudinal seam of the bag hose.
  • a device according to the invention for producing the above-mentioned bags with a self-closing valve is characterized in claim 1.
  • the subclaims indicate advantageous configurations of the manufacturing device according to the invention.
  • the device according to the invention is characterized in that at the end of a transport device for an open web of the sack material, shortly before it is guided into a tube pulling area, a valve manufacturing unit is preferably arranged above the material web guide, in which valve valve made from paper roll and the open, pre-glued sack track positioned in defined areas.
  • the prefabricated paper valves are contacted with the pre-glued open sack track and after the valve has been applied, the sack track with valve passes through a pressure section with which the supplied valve sleeve is securely bonded.
  • a sack path 1 which can be referred to as an open sack path in a single-layer sack or represents the inner sack path in a multi-layer sack, is first deflected on a roller 4 and pre-glued in a glue station B in the area of the subsequent valve applications.
  • the glue station B essentially consists of a glue pan 5, a scoop roller 6 and an application roller 7 suitable for a format-based glue application Valve or a valve sleeve 24 applied and when passing through a pressure roller pair 18, the blind web 1 and the applied valve sleeve are pressed together for an intimate bonding.
  • a deflection roller 2 at the intermediate product discharge or at the transition to a sack manufacturing machine consequently reaches the open sack path with the valve applied.
  • a conveyor belt 17 runs around in the area of a pressing station 13, and a cylinder 13b, which at the same time ensures the application of the valve sleeve 24 to the open sack track 1, serves on the opposite side of a cylinder 13a as a deflecting roller for one or more conveyor belts 17th
  • FIG 3 shows the next step: the folding flap 16a still holds the valve sheet 24 'with the front flap 24a, and over the glue application roller 11 of the glue station 11 the area of the open valve sheet 24' is glued so that, as shown in FIG 4 shows the glue track 23 being applied to the open valve sheet 24 '.
  • the glue unit 11 is shown in FIGS. 3 and 4 solely with the glue application roller 11c. From Fig. 1, however, it appears that the glue unit 11 also has a glue box 11a and a scoop roller 11b.
  • FIG. 4 it can be seen that when the folding cylinder 10b is turned further, the folding flap 16a has now opened, while the folding flap 16b has now grasped the still open valve sheet 24 ', due to the inherent stiffness of the paper to erect a flap 24b comes, which in turn angled in the opposite direction carries the backward inclined tab 24a.
  • the valve sheet 24 ' which is still open, passes through the nip 31 between the folding cylinder 10b and a gripper drum 12, the tab 24b now leading is completely folded over, the tab 24a coming to rest on the glue track 23.
  • the valve which is still lying flat, but in principle already 9-shaped, is now fully folded.
  • the gripper drum 12 now grips with the gripper 25, the valve sheet 24 'on the folding drum 10b, and finally, as shown in FIG. 6, the finished valve sleeve 24 is transferred from the gripper drum 12 to the transfer cylinder 13b at the point of contact of the rollers 12 and 13b .
  • a gripper finger 25 (not shown in detail) must open at this transfer point; at the same time, the flat-lying valve sleeve 24 is easily grasped by a fine needle 20, which is attached to the transfer cylinder 13b, and the actual takeover of the finished folded valve sleeve 24 to the transfer cylinder 13b is provided by a suction cup 19, which operates with a vacuum pump, which is not shown in sections connected is.
  • the vacuum is switched off by the suction cup 19, so that, supported by the belt or tapes 17, the transfer of the valve sleeve 24 from the transfer cylinder 13b to the previously described, partially glued blind path with the gluing unit 5, 6, 7 1 can be done.
  • the upper folding cylinder 10a preferably has two folding knives (not shown in more detail) which, when the open valve sheet 8 passes through the nip 30 between the two folding cylinders 10a and 10b, ensure that the valve sheet 8 is gripped by the two folding flaps 16a and 16b in the lower folding cylinder 10b .
  • a clock control is to be provided in such a way that the folding jaws 16a and 16b are each opened before entering the nip 30 between the folding cylinders 10a and 10b, so that the folding blades of the upper folding cylinder 10a easily open into the gaps caused by the open folding jaws 16a, 16b immerse and thus press the paper into the open folding flaps 16a, 16b.
  • the open valve sheet 8 is already gripped with both folding tongs before the open valve sheet 8 passes the glue station 11.
  • the valve manufacturing unit can therefore also be equipped with two folding knife cylinders, so that the folding cylinder 10a has only one folding knife, with which the secure gripping of the valve sheet 8 by the folding flap 16a can be ensured.
  • the separated valve sheet 24 ' which is gripped in this way only with a pair of folding pliers, then only passes through the glue station 11 before the gripping of the valve sheet 24' is ensured by the folding pliers 16b with a second folding cylinder (not shown).
  • a second folding cylinder (not shown).
  • To securely erect the valve flap 24b it is then advantageous to open the front folding flap 16a immediately during or after the valve sheet 24 'is gripped by the folding flap 16b.
  • the gap 31 between the two cylinders 10b and 12 serves both for folding over the folding tab 24b and for gripping the valve, which has been completed by this folding over, by the gripper finger 25, which can also be designed as gripper pliers.
  • FIG. 7 once again illustrates the individual process steps for producing the 9-shaped valve in perspective single images.
  • Fig. 7a shows the still unfolded, but already separated from the valve sheet 8 valve sheet 24 ', as z. B. passes in the area of the train station 21 '.
  • 7b illustrates the valve sheet 24 'after the first folding in the folding flap 16a of the folding cylinder 10b, the front flap 24a being formed.
  • FIG. 7c shows the valve sheet 24 ′ which has been pre-folded once, with the front flap 24a after passing through the glue station 11, which has carried out the application of the glue track 23.
  • FIG. 7d finally shows the valve sheet 24 'after the second folding in the folding flap 16b, so that the valve sheet 24' with the large tab 24b and the small tab 24a can now be clearly seen.
  • the valve 24 finished in FIG. 7e is finally applied to the blind path 1 provided with the glue traces 26 according to FIG. 7f, and FIG 24 after passing through the pressure roller pairs 18.
  • a clock control can be provided for the valve manufacturing unit such that, for example, the further transport of the separated valve sheets 24 'by the train group 21' is synchronized with the changeable bag size.
  • the device according to the invention for the production of paper or film bags with a self-closing valve is characterized in particular by the fact that inexpensive self-closing valve bags for powdery or granular material can be produced in a largely fully automated process, different bag sizes being able to be taken into account.

Landscapes

  • Making Paper Articles (AREA)

Claims (4)

1. Dispositif pour la fabrication d'un sac à valve à une ou plusieurs couches, à partir de papier ou d'un film, muni d'une valve de fermeture automatique, comprenant
un dispositif transporteur (2, 3, 4) pour une bande à sacs ouverte (1),
un poste de collage (B, 6, 7) qui encolle la bande à sacs (1) qui est entraînée, selon le format et dans des emplacements situés dans des régions déterminées par la cadence, ainsi que
un poste de compression (13, 18) dans lequel des feuilles à valve qui sont dirigées en synchronisme avec la cadence vers les régions encollées sont pressées sur la bande à sacs ouverte interne (1

caractérisé en ce que
une unité séparée disposée au-dessus ou latéralement par rapport au dispositif transporteur (2, 3, 4) et fonctionnant en synchronisme avec la cadence du dispositif transporteur, destinée à la réalisation d'une manchette de valve (24) à coller, comprend les groupes d'éléments suivants :
une paire de cylindres de sectionnement transversal (9) comprenant un couteau de sectionnement (14) qui coupe une bande de papier à valves (8) en sections de feuilles de valves de longueur prédéterminée,
un groupe de cylindres de pliage (10) qui saisissent les feuilles de valves individuelles (24, 24') et les plie,
un poste de collage (11) dans lequel sont collées les feuilles de valves (24') dans des régions définies, et
un tambour d'entraînement (12) qui plie en coopération avec un cylindre de pliage (10b) la feuille à valve (24') pour former un tube de valve (24) et l'applique par l'intermédiaire du poste de compression sur les régions préalablement encollées de la bande à sacs (1) entraînée au moyen du dispositif transporteur (2, 3, 4).
2. Dispositif selon la revendication 1, caractérisé en ce que l'un des cylindres de pliage (10b) comprend des volets de pliage (16a, 16b) pouvant être ouverts et fermés par l'intermédiaire d'une commande à came (15a, 15b), et coopère avec un contre-cylindre de pliage (10a) muni de deux lames de pliage correspondantes.
3. Dispositif selon la revendication 1 ou 2, caractérisé par deux postes de compression destinés aux régions partielles à encoller qui
assurent d'une part un bon encollage de la manchette de valve (24) au moyen d'une trace de colle (23) et d'une patte de valve avant (24a) en coopération entre l'un des cylindres de pliage (10b) et un tambour d'entraînement (12) et entre le tambour d'entraînement (12) et un cylindre de transmission (13b) et
déterminent d'autre part par une paire de rouleaux de compression (18) de la manchette de valve (24) un bon collage avec la bande à sacs ouverte (1).
4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé par une commande de cadence réglable destinée à l'unité de fabrication de la manchette de valve (24) permettant une adaptation dans le temps et un positionnement correct de l'amené des manchettes de valve (24) sur des sections de longueur différente de la bande à sacs (1).
EP83900188A 1981-12-29 1982-12-29 Procede et dispositif pour la fabrication d'un sac a valve de fermeture automatique Expired EP0098276B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83900188T ATE29428T1 (de) 1981-12-29 1982-12-29 Verfahren und vorrichtung zur herstellung eines ventilsacks mit selbstschliessendem ventil.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP214294/81 1981-12-29
JP56214294A JPS58116142A (ja) 1981-12-29 1981-12-29 弁付紙袋製造装置

Publications (2)

Publication Number Publication Date
EP0098276A1 EP0098276A1 (fr) 1984-01-18
EP0098276B1 true EP0098276B1 (fr) 1987-09-09

Family

ID=16653338

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83900188A Expired EP0098276B1 (fr) 1981-12-29 1982-12-29 Procede et dispositif pour la fabrication d'un sac a valve de fermeture automatique

Country Status (5)

Country Link
US (1) US4725262A (fr)
EP (1) EP0098276B1 (fr)
JP (1) JPS58116142A (fr)
DE (1) DE3277181D1 (fr)
WO (1) WO1983002252A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3324719A1 (de) * 1983-07-08 1985-01-17 Kochsiek Maschinenbau GmbH Soltau, 3040 Soltau Verfahren und maschine zum herstellen von falzsaecken aus papier
DE4137349A1 (de) * 1991-11-13 1993-05-19 Windmoeller & Hoelscher Vorrichtung zum aufbringen vorzugsweise beleimter zettel oder schlauchstuecke auf eine laufende bahn oderauf durchlaufende werkstuecke
EP1106506B1 (fr) * 1999-12-03 2004-03-17 SIG Pack Systems AG Procédé et dispositif pour fabriquer des sacs ayant 3 bords scellés avec un profil de fermeture scellé à l'intérieur de ceux-ci

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE720452C (de) * 1938-12-14 1942-05-06 Windmoeller & Hoelscher Vorrichtung zum Herstellen von Papierschlaeuchen
DE855943C (de) * 1941-06-10 1952-11-17 Maschb Honsel & Co Verfahren zum Herstellen von Ventilbeuteln
US2460885A (en) * 1944-12-09 1949-02-08 St Regis Paper Co Multiply pasted end bag with sealed inner ply
US2668481A (en) * 1948-10-29 1954-02-09 Arkell And Smiths Machine for manufacturing valve bags
US2775171A (en) * 1951-06-11 1956-12-25 Interstate Bag Company Method and machine for bag making
US2708392A (en) * 1952-07-14 1955-05-17 Orr Mfg Company Inc Apparatus for incorporating sleeved valves in bags
US2762272A (en) * 1953-04-13 1956-09-11 Kraft Bag Corp Apparatus for making valve bags
FR1103604A (fr) * 1953-05-12 1955-11-04 St Regis Paper Co Procédé et appareil de mise en place de manchons de valve pendant la formation de tubes pour sacs
US2791160A (en) * 1954-02-15 1957-05-07 Crown Zellerbach Corp Method of making valve bags
US2891791A (en) * 1955-12-19 1959-06-23 Miehle Goss Dexter Inc Jaw folding mechanism
US2955517A (en) * 1956-02-14 1960-10-11 Honsel Carl Method of manufacturing crossed bottom bags with tubular sleeve inserts
US2895387A (en) * 1956-12-07 1959-07-21 Arkell And Smiths Multiply bag with supplemental sleeve
DE1128731B (de) * 1958-10-10 1962-04-26 Windmoeller & Hoelscher Verfahren und Vorrichtung zum Herstellen von zwei- oder mehrlagigen Ventileinlagen mit in den einzelnen Lagen gegeneinander versetzten Einschnitten fuer Kreuzboden-Ventilsaecke aus Papier od. dgl.
US3479802A (en) * 1965-02-23 1969-11-25 Studley Paper Co Multi-compartment vacuum cleaner filter bag
FR1465224A (fr) * 1966-01-24 1967-01-06 Windmoeller & Hoelscher Dispositif d'alimentation et de mise en place par soudage de feuillets de soupape dans la fabrication des sacs en matière plastique
DE1511022A1 (de) * 1966-03-23 1969-07-03 Windmoeller & Hoelscher Verpackungssack sowie Verfahren und Vorrichtung zu seiner Herstellung
FR1487788A (fr) * 1966-07-26 1967-07-07 Windmoeller & Hoelscher Sac à soupape en matière plastique et dispositif pour la fabrication d'un tel sac
US3472130A (en) * 1966-09-21 1969-10-14 Windmoeller & Hoelscher Process of manufacturing valved bags having side gussets from webs of plastic sheet material
GB1232028A (fr) * 1967-08-21 1971-05-19
US3551238A (en) * 1968-01-05 1970-12-29 Windmoeller & Hoelscher Process and apparatus for manufacturing valved bag of plastic material sheeting
DE1907575A1 (de) * 1969-02-14 1970-08-20 Windmoeller & Hoelscher Verfahren und Vorrichtung zum Bilden und Anbringen von Scharnierventilen an Saecke
CA956602A (en) * 1969-04-05 1974-10-22 Reiner Muller Valve for valved bags
CA878245A (en) * 1969-09-17 1971-08-17 Du Pont Of Canada Limited Process and apparatus for providing tube valves in bags
US3853040A (en) * 1972-05-02 1974-12-10 Windmoeller & Hoelscher Process and apparatus for making crossed-end bags from weldable material

Also Published As

Publication number Publication date
DE3277181D1 (en) 1987-10-15
US4725262A (en) 1988-02-16
JPS58116142A (ja) 1983-07-11
WO1983002252A1 (fr) 1983-07-07
EP0098276A1 (fr) 1984-01-18
JPH0152176B2 (fr) 1989-11-08

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