US3555778A - Apparatus for closing valve bags - Google Patents

Apparatus for closing valve bags Download PDF

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Publication number
US3555778A
US3555778A US797453A US3555778DA US3555778A US 3555778 A US3555778 A US 3555778A US 797453 A US797453 A US 797453A US 3555778D A US3555778D A US 3555778DA US 3555778 A US3555778 A US 3555778A
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US
United States
Prior art keywords
conveyor
valve
bags
carriage
stop
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 - Lifetime
Application number
US797453A
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English (en)
Inventor
Erik Gunnar Kapare
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.)
Billeruds AB
Original Assignee
Billeruds AB
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 Billeruds AB filed Critical Billeruds AB
Application granted granted Critical
Publication of US3555778A publication Critical patent/US3555778A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/02—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks
    • B65B7/025—Closing valve bags

Definitions

  • the present invention relates to an apparatus for closing a valve on valved bags which are fed on a conveyor with the valved end first as seen in the feeding direction with the valve opening turned to one side, said apparatus comprising a stop adapted to be inserted into the movement path of the bags, said stop adapted, when in inserted position, to constitute an abutment for the front end of the bags at a place at some distance from the opening end of the valve so as to expose the valve opening, and a device for spraying a binding agent into the valve opening.
  • the main feature of the invention is to be seen in a carriage adapted to be moved back and forth above and parallel to the conveyor, said carriage provided with said stop and said spraying device for the binding agent and said carriage adapted to be moved with a speed in forward direction which is somewhat lower than the speed of the conveyor.
  • the present invention relates to an apparatus for closing a valve, preferably provided with a closing flap, on valve bags filled with goods, these bags being advanced with the valved end first as seen in the feeding direction and with the valve opening turned to one side.
  • the apparatus comprises a stop to be inserted into the movement path of the bags, said stop adapted, when inserted into the path, to serve as an abutment for the front end of the bags at a place at some distance from the opening end of the valve to expose the valve opening, and a device for the injection of a binding agent into the valve opening.
  • the main feature of the invention is to be seen therein that the stop and the injector for the binding agent are arranged on a carirage which is displaceable back and forth above and parallel to the conveyor, said carriage being adapted to be displaced forwardly with a speed somewhat lower than the speed of the conveyor.
  • a carirage which is displaceable back and forth above and parallel to the conveyor, said carriage being adapted to be displaced forwardly with a speed somewhat lower than the speed of the conveyor.
  • FIG. 1 shows diagrammatically from above a movement scheme for the bags on the conveyor of apparatus
  • FIG. 2 is a plan view of an apparatus according to the invention with the carriage in start position
  • FIG. 3 is a similar view but with the carriage in a front end position
  • FIGS. 4 and 5 are side elevation corrresponding to FIGS. 2 and 3, and
  • FIG. 6 shows on an enlarged scale a vertical section on the line VI-VI in FIG. 1.
  • the filled bags 2 are laid on a conveyor, preferably a band conveyor 1, in such a way that the opening 3 of the bag valve 4 is turned to one side (according to FIG. 1.
  • a carriage 13 is, on the stand 10 of the apparatus, displaceable back and forth above the conveyor 1 by means of a hydraulic piston and cylinder unit 11, 12.
  • the carriage 13 carries a twoarmed lever 17 which is swingable about a shaft 14 by means of an hydraulic piston and cylinder unit 15, 16 and the lower arm of the lever 17 can be moved down into the movement path of the bags 2 on the conveyor 1 and constitutes said stop 5.
  • the carriage also carries the spray gun 8 which as obvious from FIG.
  • the bags filled by means of the valve 4 are fed on the conveyor with a mutual distance of about the length of two bags.
  • a bag with its front end abuts against the lowered stop 5 and then hits the inner end of the vertical flap 6, the central portion of the bag end will be bent in somewhat and the flap is bent forwards with its free end.
  • hydraulic medium is fed into the rear end of the cylinder 12 and the piston 11 pushes the carriage 13 forwards.
  • the feeding speed of the conveyor 1 is chosen a little higher than the speed of the carriage which means that the vault formed at the front end of the bag by means of the stop 5 is enlarged and thus also the valve opening 3 is enlarged.
  • hydraulic medium is fed at the front end of the cylinder 19' which causes the lever 20 and the spray gun 8 to be swung in counter clockwise direction about the shaft 21 from the position shown with unbroken lines to the position shown by means of dash and dot lines.
  • a suitable quantity of a binding agent is sprayed out of the mouth piece 22 and into the valve opening 3 where the binding agent hits the inside of the flap 6 and/or the seat 7.
  • the spray gun 8 is of the so called hot-melt-type i.e. it is provided with a device for heating the quick-drying binding agent which is pressed through the mouthpiece as a string.
  • the carriage 13 does not have to be provided with a separate driving means. It may instead be advanced by the bag conveyed on the conveyor 1 at a compression of a return spring. The counter pressure exerted by said spring for the return of the carriage to its start position with the stop 5 pressing against the front end of the bag 2 is probably sufiicient for producing said pressing in of the central portion of this bag end to open the valve 4.
  • the lever 9 may be provided with a stamp pad for the application of a mark on the front end of the bag 2.
  • the conveyor 1 comprises a chain conveyor or two parallel running bands which between them form a longitudinal slot
  • the carriage 13 run below the conveyor and make such an arrangement that the stop 5 acts from below into the movement path of the bags 2.
  • the denomination carriage is intended to include also a sled.
  • An apparatus for closing a valve on valved bags which are fed on a conveyor with the valved end first as seen in the feeding direction with the valve opening turned to one side, said apparatus comprising a stop adapted to be inserted into the movement path of the path of the bags, said stop adapted, when in inserted position, to constitute an abutment for the front end of the bags at a place at some distance from the opening end of the valve so as to expose the valve opening, and a device for spraying a binding agent into the valve opening, wherein the improvement comprises a carriage adapted to be moved back and forth above and parallel to the conveyor, said carriage provided with said stop and said spraying device for the binding agent and said carriage adapted to be moved with a speed in forward direction which is somewhat lower than the speed of the conveyor.
  • An apparatus as claimed in claim 1, wherein the improvement comprises an arm for closing the valve, said arm adapted to be lowered into the movement path of the bags in front of the valve.
US797453A 1968-02-09 1969-02-07 Apparatus for closing valve bags Expired - Lifetime US3555778A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE01714/68A SE332384B (fr) 1968-02-09 1968-02-09

Publications (1)

Publication Number Publication Date
US3555778A true US3555778A (en) 1971-01-19

Family

ID=20258696

Family Applications (1)

Application Number Title Priority Date Filing Date
US797453A Expired - Lifetime US3555778A (en) 1968-02-09 1969-02-07 Apparatus for closing valve bags

Country Status (11)

Country Link
US (1) US3555778A (fr)
BE (1) BE728152A (fr)
CH (1) CH495875A (fr)
DE (1) DE1903992A1 (fr)
DK (1) DK131812C (fr)
FI (1) FI48695C (fr)
FR (1) FR2001614A1 (fr)
GB (1) GB1226293A (fr)
NL (1) NL141447B (fr)
NO (1) NO124475B (fr)
SE (1) SE332384B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854385A (en) * 1972-06-01 1974-12-17 Sprinter Pack Ab Machine for erecting and gluing carton blanks
US4290253A (en) * 1978-12-23 1981-09-22 Robert Bosch Gmbh Method of producing sealed packaging containers
US4394207A (en) * 1981-03-03 1983-07-19 Bates Ventilsaekke Co. A/S Apparatus for sealing the valve in a valve bag
US4447218A (en) * 1981-01-06 1984-05-08 Bertsch Dieter A Method and apparatus for the automatic folding of floppy disc storage envelopes
US11207707B2 (en) * 2017-03-22 2021-12-28 Hefei Boe Optoelectronics Technology Co., Ltd. Curved surface coating device for curved surface display panel and glue coating apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0160725A1 (fr) * 1984-05-10 1985-11-13 Walter Dürbeck Papiersackfabriken GmbH & Co. KG Sacs à valve ainsi que dispositif et procédé pour fermer des sacs à valve
EP0611694B1 (fr) * 1993-02-16 1998-07-22 SACCHETTIFICIO NATIONALE G. CORAZZA S.p.A. dispositif pour sceller des sacs

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854385A (en) * 1972-06-01 1974-12-17 Sprinter Pack Ab Machine for erecting and gluing carton blanks
US4290253A (en) * 1978-12-23 1981-09-22 Robert Bosch Gmbh Method of producing sealed packaging containers
USRE32018E (en) * 1978-12-23 1985-11-05 Robert Bosch Gmbh Method of producing sealed packaging containers
US4447218A (en) * 1981-01-06 1984-05-08 Bertsch Dieter A Method and apparatus for the automatic folding of floppy disc storage envelopes
US4394207A (en) * 1981-03-03 1983-07-19 Bates Ventilsaekke Co. A/S Apparatus for sealing the valve in a valve bag
US11207707B2 (en) * 2017-03-22 2021-12-28 Hefei Boe Optoelectronics Technology Co., Ltd. Curved surface coating device for curved surface display panel and glue coating apparatus

Also Published As

Publication number Publication date
FI48695B (fr) 1974-09-02
NL141447B (nl) 1974-03-15
BE728152A (fr) 1969-07-16
CH495875A (de) 1970-09-15
SE332384B (fr) 1971-02-01
DK131812C (da) 1976-02-09
NO124475B (fr) 1972-04-24
FR2001614A1 (fr) 1969-09-26
DK131812B (da) 1975-09-08
FI48695C (fi) 1974-12-10
DE1903992A1 (de) 1970-01-08
GB1226293A (fr) 1971-03-24
NL6901864A (fr) 1969-08-12

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