US2847806A - Packing machines - Google Patents

Packing machines Download PDF

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Publication number
US2847806A
US2847806A US589400A US58940056A US2847806A US 2847806 A US2847806 A US 2847806A US 589400 A US589400 A US 589400A US 58940056 A US58940056 A US 58940056A US 2847806 A US2847806 A US 2847806A
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Prior art keywords
bag
foil
magnets
holder
ring
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US589400A
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Wang Herman
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    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/13—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the preformed tubular webs being supplied in a flattened state
    • B65B9/14—Devices for distending tubes supplied in the flattened state

Definitions

  • the present invention relates to packing machines in which a flattened tubular bag material of paper or plastic foils is fed to a filling station, the object being that the bag foil for forming the bag shall beenabled to open, be closed at its lower end,'filled with the material to be packed, closed at its upper end and finally cut ofl at the lower end below the closing fold.
  • the problem with a machine operating according to this method is to open the bag foil and keep it open during the feed and the working steps above mentioned.
  • the invention has for its object a favorable solution of this problem.
  • the invention comprises improvements in a packing machine of the kind described in which the bag foil is fed from a supply roll along a feed path to a filling station, at least two electro-magnets in association with the feed path of the bag foil, the poles of which face each other on opposite sides of the feed path at a distance adjusted according to the diameter of the bag foil, the said magnets being adapted to produce a magnetic field through a ring of magnetic responsive material located within the said bag foil, the said ring being thereby kept floating within the bag foil which is held open, means for gripping the edge of the bag foil above the magnets and pulling the bag foil up to a desired length, means for sealing a bottom in the bag foil above the magnets, means for cutting the bag foil off between the said sealing means and the magnets, and means for sealing the top of the bag after being filled.
  • the magnets are electromagnets, the poles of which face each otherdn opposite sides of the feed path of the tubular bag foil in a distance from each other adjusted according to the diameter or width of the bag foil and adapted to produce an alternating magnetic field for alternatingly to attract and repel the ring located in the bag foil.
  • a travelling holder movable along the path of the/bag foil having members adapted to grip the tubular foil and keep this in open condition, the "said holder being collapsable at a right angle to the bag foil, so that after the filling of the bag the latter is closed until the upper end of the bag has been sealed.
  • Fig. 1 is a front View of a packing machine including elements arranged according to the invention.
  • Fig. 2 is,a plan view of the machine shown in Fig. 1.
  • Fig/1 designates a roll on which the bag foil 2 is wdund in the shape of a flattened tubular foil of waxed paper, waxed paste board or plastic (synthetic resin material).
  • a further movement of the arms 17 causes the welding dies 8, one of which is provided with a groove in which anelectrically heated resistance wire is mounted, to be pressed together, whereby the top of the bag is closed.
  • the clips 6 release the filled and sealed bag which is/gripped, ejected or removed by means of a conveyef belt.
  • the carriage 5 When using a rigid foil, for example consisting of waxed paste board, the carriage 5 may be replaced by a set of rollers 10, indicated with dotted lines. In this case the rollers 10 push the foil over the iron ring 3 to the adjusted height.
  • Iron rings of different sizes will be required for different diameters or widths of foil.
  • the distance between the electro-magnets 4 may naturally be adjusted in accordance with the diameter of the bag foil.
  • the rails or side members of the holder are linked together at all four corners, so that the holder may be collapsed in the way above described.
  • the distance between the side members of the holder may be changed by providing the side members with holes as indicated, so that the bolts can be removed and the distance thereby changed.
  • the holder 5 may as already mentioned, be collapsed so that the bag is held tightly together while the closing is effected.
  • foils of paper or plastic this comprises waxed paper or paste board, plastic or other material which can be welded or sealed for closing the bag at the top and at the bottom. It will further be understood that the bag may have any desired and suitable cross-section.
  • a packing machine comprising means for feeding a flattened tubular foil from a supply roll along a feed path to a filling station, at least two electro-magnets in association with the feed path of the bag foil, the poles of which face each other on opposite sides of the feed path at a distance adjusted according to the diameter of the bag foil, a ring of magnetic responsive material in the bag foil between the magnets, the said magnets ring of magnetic responsive material located within the said bag foil, the said ring being thereby kept floating within the bag foil which is held open, means for gripping the edge of the bag foil above the magnets and for pulling the bag foil up to a desired length, means for sealing a bottom in the bag foil above the magnets, means for cutting the bag foil off between the said sealing means and the magnets, and means for sealing the top of the bag after being filled.
  • a packing machine as set forth in claim 1, wherein the means for pulling the bag foil to the desired length, comprises a traveling holder which is movable along the path of the bag foil, the said holder being provided with gripping members adapted to grip the upper edge of the bag foil and keep the same in open condition, the said holder being collapsible at a right angle to the bag foil feedpath in order to close the bag after filling until the upper end of the bag has been sealed.
  • a method of producing a bag from a continuous tubular bag foil comprising feeding the said bag foil from a supply roll over a ring of magnetic responsive material located interiorly of the bag foil, producing a magnetic field through the said ring by means of at least two electro-magnets, the poles of which face each other on opposite sides of the ring, so as to keep the ring floating within the bag foil to hold the same open, pulling the bag foil up to a desired length, sealing a bottom in the bag above the magnets and cutting the bag foil off between the sealing point and the magnets, filling the bag, sealing the top of the bag and releasing the same.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Description

Aug. 19, 1958 H. WANG 2,847,806
PACKING MACHINES Filed June 5, 1956 2 Sheets-Sheet 1 Fig.1 A6
IN V EN TOR.
Aug. 19, 1958 H. WANG PACKING MACHINES 2 Sheets-Sheet 2 Filed June 5, 1956 Fig.2
IN V EN TOR. M W BY United States Patent PACKING MACHINES Herman Wang, Oslo, Norway Application June 5, 1956, Serial No. 589,400 Claims priority, application Norway June 16, 1955 4 Claims. (CI. 53-29) The present invention relates to packing machines in which a flattened tubular bag material of paper or plastic foils is fed to a filling station, the object being that the bag foil for forming the bag shall beenabled to open, be closed at its lower end,'filled with the material to be packed, closed at its upper end and finally cut ofl at the lower end below the closing fold.
The problem with a machine operating according to this method is to open the bag foil and keep it open during the feed and the working steps above mentioned.
The invention has for its object a favorable solution of this problem.
Accordingly the invention comprises improvements in a packing machine of the kind described in which the bag foil is fed from a supply roll along a feed path to a filling station, at least two electro-magnets in association with the feed path of the bag foil, the poles of which face each other on opposite sides of the feed path at a distance adjusted according to the diameter of the bag foil, the said magnets being adapted to produce a magnetic field through a ring of magnetic responsive material located within the said bag foil, the said ring being thereby kept floating within the bag foil which is held open, means for gripping the edge of the bag foil above the magnets and pulling the bag foil up to a desired length, means for sealing a bottom in the bag foil above the magnets, means for cutting the bag foil off between the said sealing means and the magnets, and means for sealing the top of the bag after being filled.
In a suitable embodiment the magnets are electromagnets, the poles of which face each otherdn opposite sides of the feed path of the tubular bag foil in a distance from each other adjusted according to the diameter or width of the bag foil and adapted to produce an alternating magnetic field for alternatingly to attract and repel the ring located in the bag foil.
For feeding the tubular bag,foil a travelling holder movable along the path of the/bag foil is provided, having members adapted to grip the tubular foil and keep this in open condition, the "said holder being collapsable at a right angle to the bag foil, so that after the filling of the bag the latter is closed until the upper end of the bag has been sealed.
The invention is illustrated in the drawing, in which:
Fig. 1 is a front View of a packing machine including elements arranged according to the invention, and
Fig. 2 is,a plan view of the machine shown in Fig. 1.
In Fig/1, 1 designates a roll on which the bag foil 2 is wdund in the shape of a flattened tubular foil of waxed paper, waxed paste board or plastic (synthetic resin material).
/ The bag foil is threaded over an iron ring 3. 4
denotes electro-magnets, the poles of which face each other on opposite sides of the feed path of the bag foil in level with the iron ring 3 and are adapted to produce an alternating field for alternatingly to attract and repel, i. e. vibrate the iron ring 3 so that the latter is kept floating.
pivoted arms .13 being caused to grip the foil above'the iron ring and under control of the cylinders 12 caused to pull the bag foil up to. the desired height corresponding to the bag length. When the carriage 11 has reached its upper position, arms 15 pivoted on the back stand,
16 of the machine are moved together by means ofa hydraulic cylinder 14 thereby pressing together'welding dies 7, oneof which is provided with a groove'in which an electrically heated resistance Wire is .mountedfwhereby the bottom of thebag is formed. .A further. movement on the arm 15 causes a cutting device 9 to cut the bag off below the bottom seal. Material to be filled into the bag is supplied from the feed hopper, as shown, to the bag through the opening in the holder 5, which has the shape of a square as shown in Fig. 2 and is composed of four parts which are joined together by means of bolts. The holder 5 is caused to collapse by means of arms 17 pivoted on the "back stand 16 and controlled by a hydraulic cylinder 18, so that the foil is pressed flat. A further movement of the arms 17 causes the welding dies 8, one of which is provided with a groove in which anelectrically heated resistance wire is mounted, to be pressed together, whereby the top of the bag is closed. The clips 6 release the filled and sealed bag which is/gripped, ejected or removed by means of a conveyef belt.
The process is repeated continuously, the carriage or holder S being again moved down and the clips gripping the fpil which is cut off in a suitable height above the iron ring.
When using a rigid foil, for example consisting of waxed paste board, the carriage 5 may be replaced by a set of rollers 10, indicated with dotted lines. In this case the rollers 10 push the foil over the iron ring 3 to the adjusted height.
Iron rings of different sizes will be required for different diameters or widths of foil. The distance between the electro-magnets 4 may naturally be adjusted in accordance with the diameter of the bag foil.
In the grip holder shown in Fig. 2 the rails or side members of the holder are linked together at all four corners, so that the holder may be collapsed in the way above described. The distance between the side members of the holder may be changed by providing the side members with holes as indicated, so that the bolts can be removed and the distance thereby changed. When the bag is filled, the holder 5 may as already mentioned, be collapsed so that the bag is held tightly together while the closing is effected.
It will be understood that when in the preceding description or in the claims reference is made to foils of paper or plastic, this comprises waxed paper or paste board, plastic or other material which can be welded or sealed for closing the bag at the top and at the bottom. It will further be understood that the bag may have any desired and suitable cross-section.
What I claim is:
1. A packing machine comprising means for feeding a flattened tubular foil from a supply roll along a feed path to a filling station, at least two electro-magnets in association with the feed path of the bag foil, the poles of which face each other on opposite sides of the feed path at a distance adjusted according to the diameter of the bag foil, a ring of magnetic responsive material in the bag foil between the magnets, the said magnets ring of magnetic responsive material located within the said bag foil, the said ring being thereby kept floating within the bag foil which is held open, means for gripping the edge of the bag foil above the magnets and for pulling the bag foil up to a desired length, means for sealing a bottom in the bag foil above the magnets, means for cutting the bag foil off between the said sealing means and the magnets, and means for sealing the top of the bag after being filled.
2. A packing machine as set forth in claim 1, wherein the means for pulling the bag foil to the desired length, comprises a traveling holder which is movable along the path of the bag foil, the said holder being provided with gripping members adapted to grip the upper edge of the bag foil and keep the same in open condition, the said holder being collapsible at a right angle to the bag foil feedpath in order to close the bag after filling until the upper end of the bag has been sealed.
3. A papking machine as set forth in claim 1, wherein the electro-inagnets are supplied with alternating current to produce am alternating field for alternatingly attract- 20 bag foil.
4. A method of producing a bag from a continuous tubular bag foil, comprising feeding the said bag foil from a supply roll over a ring of magnetic responsive material located interiorly of the bag foil, producing a magnetic field through the said ring by means of at least two electro-magnets, the poles of which face each other on opposite sides of the ring, so as to keep the ring floating within the bag foil to hold the same open, pulling the bag foil up to a desired length, sealing a bottom in the bag above the magnets and cutting the bag foil off between the sealing point and the magnets, filling the bag, sealing the top of the bag and releasing the same.
References Cited in the file of this patent UNITED STATES PATENTS 1,588,647 Bates June 15, 1926 2,600,254 Lysobey June 10, 1952 FOREIGN PATENTS 686,952 Germany Jan. 19, 1940
US589400A 1955-06-16 1956-06-05 Packing machines Expired - Lifetime US2847806A (en)

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Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2982068A (en) * 1958-06-12 1961-05-02 Slick Airways Inc Shade roller packaging apparatus
US2997831A (en) * 1959-08-17 1961-08-29 Habra Werk Ott Kg Bag making apparatus
US3050918A (en) * 1959-04-16 1962-08-28 Bemis Bro Bag Co Automatic bag feeding machine
US3058273A (en) * 1961-03-06 1962-10-16 Formatron Inc Method and apparatus for packaging
US3070927A (en) * 1959-12-30 1963-01-01 Lundahl Lennart Viktor Samuel Method of and apparatus for making and filling flexible-walled tubes
US3112588A (en) * 1960-06-15 1963-12-03 R W Barraclough Ltd Machines for making, filling and sealing containers
US3161002A (en) * 1961-12-26 1964-12-15 Smith & Nephew Plastics Packaging machines
US3190049A (en) * 1960-04-13 1965-06-22 Meulen Leonard Van Der Method and apparatus for forming a package from sheet material
DE1204576B (en) * 1964-03-20 1965-11-04 Hermann Helfert Device for packing individual, especially bulky items
US3287881A (en) * 1962-10-10 1966-11-29 Jelling Murray Bag, bag supply and bag applying apparatus and method for use with continuous rolls of bags and the like
US3334466A (en) * 1964-01-14 1967-08-08 Scholle Container Corp Process and apparatus for continuously forming and filling flexible containers
US3360901A (en) * 1965-01-21 1968-01-02 Gallo Joseph Packaging device for positioning a tubular type envelope over potted plants and similar articles
DE1636230B1 (en) * 1963-02-14 1970-07-30 Spezialmaschinenfabrik Everhar Machine for packing pieces and bulk goods in bag packs
DE1636207B1 (en) * 1962-03-12 1971-06-24 Aquarius Johannes Franciscus Tubular bag packaging machine with cross-sealing tools, which can be moved up and down in its conveying direction to pull off the packaging material tube
US3792565A (en) * 1969-05-27 1974-02-19 Rottneros Ab Wrapping machines
US3847708A (en) * 1972-10-10 1974-11-12 Tokyo Automatic Mach Works Apparatus for making bags from soft tapes of synthetic resins
US3859062A (en) * 1972-02-07 1975-01-07 Matsushita Electric Ind Co Ltd Automatic packing apparatus
US3903678A (en) * 1974-06-28 1975-09-09 Us Agriculture Spreader mandrel for automatic produce-bagging machine that uses factory-roll polyethylene net tubing
US3903677A (en) * 1974-06-28 1975-09-09 Us Agriculture Opening and gripping mechanism for automatic produce-bagging machine that uses factory-roll polyethylene net tubing
US3908335A (en) * 1973-05-03 1975-09-30 Roberto Giannelli Apparatus for packing plastic bags with contents of constant and preselected weight and operating in a continuous and automatic cycle
US3931701A (en) * 1974-06-28 1976-01-13 The United States Of America As Represented By The Secretary Of Agriculture Automatic produce-bagging machine that uses factory-roll polyethylene net tubing
FR2428374A7 (en) * 1978-03-28 1980-01-04 Schwank Appts. for positioning tubular film for drape wrapping of packages - for semi-automatic use by a single operator
US4202152A (en) * 1976-05-24 1980-05-13 General Foods Limited Wrapping process
US4244159A (en) * 1979-03-29 1981-01-13 Gess Larry C Machine for producing packages sequentially from continuous flexible tubing
US4338761A (en) * 1979-03-29 1982-07-13 Gess Larry C Machine for producing packages with labels
US4419854A (en) * 1979-08-06 1983-12-13 Kureha Kagaku Kogyo Kabushiki Kaisha Automatic continuous vacuum packaging method and apparatus
US4619104A (en) * 1985-01-31 1986-10-28 Yakima Wire Works, Inc. Net bag forming method and machine
US4757669A (en) * 1976-11-01 1988-07-19 Tex Innovation Ab Vacuum packaging machinery and process
US5172536A (en) * 1990-11-30 1992-12-22 Elm Co., Ltd. Continuous packing apparatus
US5426922A (en) * 1992-04-20 1995-06-27 Ideas In Motion, Inc. Bottle bagging apparatus
WO2001074148A1 (en) * 2000-04-03 2001-10-11 Delaval Holding Ab Milk sampling apparatus and method
GB2405133A (en) * 2003-08-22 2005-02-23 Valmet Atlas Plc Packaging delicate items in tubular wrapping
US20130196838A1 (en) * 2011-08-26 2013-08-01 Weilong Cao Open-End Shaped Retaining Device of Tubular Material Packaging

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1588647A (en) * 1925-05-06 1926-06-15 Bates Valve Bag Co Method of and apparatus for packaging material
DE686952C (en) * 1938-06-18 1940-01-19 Akt Ges Maschf Device for forming bellows-like gussets in a hose web
US2600254A (en) * 1947-03-20 1952-06-10 Lysobey John Wall treatment of tubing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1588647A (en) * 1925-05-06 1926-06-15 Bates Valve Bag Co Method of and apparatus for packaging material
DE686952C (en) * 1938-06-18 1940-01-19 Akt Ges Maschf Device for forming bellows-like gussets in a hose web
US2600254A (en) * 1947-03-20 1952-06-10 Lysobey John Wall treatment of tubing

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2982068A (en) * 1958-06-12 1961-05-02 Slick Airways Inc Shade roller packaging apparatus
US3050918A (en) * 1959-04-16 1962-08-28 Bemis Bro Bag Co Automatic bag feeding machine
US2997831A (en) * 1959-08-17 1961-08-29 Habra Werk Ott Kg Bag making apparatus
US3070927A (en) * 1959-12-30 1963-01-01 Lundahl Lennart Viktor Samuel Method of and apparatus for making and filling flexible-walled tubes
US3190049A (en) * 1960-04-13 1965-06-22 Meulen Leonard Van Der Method and apparatus for forming a package from sheet material
US3112588A (en) * 1960-06-15 1963-12-03 R W Barraclough Ltd Machines for making, filling and sealing containers
US3058273A (en) * 1961-03-06 1962-10-16 Formatron Inc Method and apparatus for packaging
US3161002A (en) * 1961-12-26 1964-12-15 Smith & Nephew Plastics Packaging machines
DE1636207B1 (en) * 1962-03-12 1971-06-24 Aquarius Johannes Franciscus Tubular bag packaging machine with cross-sealing tools, which can be moved up and down in its conveying direction to pull off the packaging material tube
US3287881A (en) * 1962-10-10 1966-11-29 Jelling Murray Bag, bag supply and bag applying apparatus and method for use with continuous rolls of bags and the like
DE1636230B1 (en) * 1963-02-14 1970-07-30 Spezialmaschinenfabrik Everhar Machine for packing pieces and bulk goods in bag packs
US3334466A (en) * 1964-01-14 1967-08-08 Scholle Container Corp Process and apparatus for continuously forming and filling flexible containers
DE1204576B (en) * 1964-03-20 1965-11-04 Hermann Helfert Device for packing individual, especially bulky items
US3360901A (en) * 1965-01-21 1968-01-02 Gallo Joseph Packaging device for positioning a tubular type envelope over potted plants and similar articles
US3792565A (en) * 1969-05-27 1974-02-19 Rottneros Ab Wrapping machines
US3859062A (en) * 1972-02-07 1975-01-07 Matsushita Electric Ind Co Ltd Automatic packing apparatus
US3847708A (en) * 1972-10-10 1974-11-12 Tokyo Automatic Mach Works Apparatus for making bags from soft tapes of synthetic resins
US3908335A (en) * 1973-05-03 1975-09-30 Roberto Giannelli Apparatus for packing plastic bags with contents of constant and preselected weight and operating in a continuous and automatic cycle
US3903678A (en) * 1974-06-28 1975-09-09 Us Agriculture Spreader mandrel for automatic produce-bagging machine that uses factory-roll polyethylene net tubing
US3903677A (en) * 1974-06-28 1975-09-09 Us Agriculture Opening and gripping mechanism for automatic produce-bagging machine that uses factory-roll polyethylene net tubing
US3931701A (en) * 1974-06-28 1976-01-13 The United States Of America As Represented By The Secretary Of Agriculture Automatic produce-bagging machine that uses factory-roll polyethylene net tubing
US4202152A (en) * 1976-05-24 1980-05-13 General Foods Limited Wrapping process
US4757669A (en) * 1976-11-01 1988-07-19 Tex Innovation Ab Vacuum packaging machinery and process
FR2428374A7 (en) * 1978-03-28 1980-01-04 Schwank Appts. for positioning tubular film for drape wrapping of packages - for semi-automatic use by a single operator
US4338761A (en) * 1979-03-29 1982-07-13 Gess Larry C Machine for producing packages with labels
US4244159A (en) * 1979-03-29 1981-01-13 Gess Larry C Machine for producing packages sequentially from continuous flexible tubing
US4419854A (en) * 1979-08-06 1983-12-13 Kureha Kagaku Kogyo Kabushiki Kaisha Automatic continuous vacuum packaging method and apparatus
US4619104A (en) * 1985-01-31 1986-10-28 Yakima Wire Works, Inc. Net bag forming method and machine
US5172536A (en) * 1990-11-30 1992-12-22 Elm Co., Ltd. Continuous packing apparatus
US5426922A (en) * 1992-04-20 1995-06-27 Ideas In Motion, Inc. Bottle bagging apparatus
WO2001074148A1 (en) * 2000-04-03 2001-10-11 Delaval Holding Ab Milk sampling apparatus and method
GB2405133A (en) * 2003-08-22 2005-02-23 Valmet Atlas Plc Packaging delicate items in tubular wrapping
US20130196838A1 (en) * 2011-08-26 2013-08-01 Weilong Cao Open-End Shaped Retaining Device of Tubular Material Packaging

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