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US3656274A - Machine for producing and filling bags - Google Patents

Machine for producing and filling bags Download PDF

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Publication number
US3656274A
US3656274A US32009A US3656274DA US3656274A US 3656274 A US3656274 A US 3656274A US 32009 A US32009 A US 32009A US 3656274D A US3656274D A US 3656274DA US 3656274 A US3656274 A US 3656274A
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United States
Prior art keywords
bag
strips
blades
arms
funnel
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Expired - Lifetime
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US32009A
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English (en)
Inventor
Ove Andersen Vind
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Individual
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Individual
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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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/04—Forming flat bags from webs
    • 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
    • B65B5/00—Packaging individual articles in containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, jars
    • B65B5/04—Packaging single articles
    • B65B5/045—Packaging single articles in bags

Definitions

  • the blades are pulled apart to open the bag mouth in the filling station in which a two-part funnel is introduced into the bag mouth and opened to clamp the mouth against the flexible blades while the bag is being filled through the funnel.
  • the bags are fed to the closing station with their mouths slightly open so that a rotatable tube may be inserted therein and rotated to twist the bag mouth together while it is held to the tube by suction and the body of the bag is held against rotation.
  • the present invention relates to a machine for producing and filling bags.
  • the invention was specially developed with the idea of packaging poultry in view, it may, however, be also used for other piece goods and for powdered and liquid products to be filled into bags.
  • the machine comprises means for advancing a continuous sheet material comprising two parallel strips, means for joining the two strips together along the desired outline of a bag, means for separating the bag formed thereby from the sheet material, holding means for gripping the two strips from the outside adjacent the mouth of the bag and for transporting the bag to a filling station, means associated with the filling station for moving the holding means from each other, means for inserting a product into the opened bag, means for subsequently moving the holding means towards each other, and means for transporting the filled bag to a closing station.
  • the invention provides a simple and reliable solution of the problem of holding and transferring the bag between those stations where it is first made from the sheet material, whereupon it is opened at its mouth and filled and finally. closed in such a way that the bag is effectively held during the entire process without the risk that the holding means may interfere with or hamper the filling and closing operations.
  • the machine may have means for outwardly folding an edge zone at the mouth region of each strip when the strips are advanced in a horizontal direction and the holding means may consist of thin, flexible blades which, subsequent to the folding, are introduced or inserted into the two folds formed.
  • the bag is suspended on the two blades, the leading ends of which, after the joining together of the vertical bag edges including the two folds, act as drivers for advancing the bag through the stations of the machine.
  • The-blades may be secured to arms which, at their extremities, are displaceable along two shafts which can be raised and lowered relative to the path of advance of the strips through the machine. In that case the insertion of the blades into the carrying folds is obtained by simple movements.
  • the two shafts may be parts of a frame which is pivotable around an axis parallel to the direction of advance of the strips and which has a cam follower engaging with a stationary cam track.
  • the bag may then additionally be pivoted in a vertical plane into a sloping position with its mouth facing outwards which, in the filling station, provides an excellent possibility for introducing the goods to be filled into the bags unhampered by the component parts of the machine.
  • the arms may be provided with cam followers for interaction with two cam means having converging cam tracks which are mounted in the filling station and are displaceable transversely of the direction of advance of the bag.
  • cam means By means of said cam means, it is possible to move the carrying blades, and with them, the two sides of the bag from each other prior to the filling and immediately thereafter to move them towards each other into the mutual position, in which the bag is closed in the following closing station.
  • the bag may expediently be partly open, and in the closing station there may be provided gripping means for temporarily holding the bag, a rotatable and axially displaceable tube, one end of which may be inserted into the bag and which surrounds an inner tube which is axially displaceable relative thereto.
  • the end of the inner tube remote from the bag may be connected to a vacuum source, and there may be provided one or more apertures in the walls of the two tubes opening into a region between the tubes which is sealed at both ends.
  • FIG. I is a plan view showing the main components of the machine viewed from above,
  • FIG. 2 shows a development in vertical plane of the sheet material from which the bags are made in order to illustrate its travel through a part of the machine
  • FIG. 3 is a vertical, radial section through station I as shown in FIG. 1,
  • FIG; 4 is a view corresponding to FIG. 3 with the operating means shown in another position
  • FIG. 5 is a corresponding section through station ll
  • FIG. 6 is a section of station IV, I
  • FIG. 7 shows some details of FIG. 6,
  • FIG. 8 is a view seen in the direction of the arrow VIII in FIG. 7,
  • FIG. 9 shows a fraction of FIGS. 6 and 7 on a larger scale
  • FIG. 10 is a radial vertical section through station VI of FIG. 1,
  • FIG. 11 is a section along lines Xl-Xl in FIG. 10, and FIG. 12 shows a fraction of FIG. 10 on a larger scale.
  • the machine shown in the drawings processes a continuous sheet material comprising two fiat strips 1 and 2, which in the machine are formed into bags 3.
  • the two strips form part of a folded web of thermoplastic material and the strip is unrolled from a supply roll 7. It would also be possible to use single strips or a flattened plastic tube which, prior to the introduction into the devices described below, is slit open at one longitudinal edge, which in the present case would be the upper longitudinal edge.
  • the vertical shaft of which is provided with a brake, not shown, which can be adjusted for maintaining a suitable tension in the sheet material 1, 2, the material passes over tensioning rollers 8 to a first pair of driven feeder rollers 9, which rotate synchronously in opposite directions.
  • a first pair of driven feeder rollers 9 which rotate synchronously in opposite directions.
  • two further driven rollers 10 rotating synchronously at a slightly higher circumferential speed than the rollers 9.
  • the rollers 10, may, for instance, rotate with the same number of revolutions as the rollers 9, but have a slightly larger diameter.
  • the first guide plate 11 has, at the top, a downwardly bent folding plate 13, vide FIGS. 1 and 2, which, during the advance of the material, folds the free upper edge zone of one strip 1 down along the outer face of the strip so as to form a folded edge zone 5 on the strip.
  • the following guide plate 12 has, correspondingly, a downwardly bent, folding plate 14, which folds the edge zone 6 of the other strip 2.
  • a photo-electric cell 15 which detects indicator marks printed in advance on the sheet material and thereby controls the driving means of the components of the machine in such a way that any printing on the strip, such as a label, is placed correctly in relation to each bag produced, and that the bags are produced with the correct width.
  • the rollers 10 feed the material into a welding unit which in FIG. 1 is shown rather diagrammatically with a welding electrode 51 which also is shaped as a cutting means, and a heatresistant counter pressure plate 52.
  • the parts 51 and 52 of the welding unit are moved towards and away from each other at to the path of advance of the sheet material by means of mechanism, not shown, which are actuated from the main shaft 22 of the machine in timed relationship with the movements of the other components in the machine.
  • the contour or outline of the weld appears from FIG. 2 from which it appears that the making of a bag takes place in two steps.
  • the welding electrode 51 whose contour is indicated by the reference numeral 16, welds the two strips 1 and 2 along the trailing lateral edge 17 of a bag and the parallel leading lateral edge 18 of the next bag, plus the radius 19 at the leading edge of the second bag and the corresponding radius of the trailing edge of the first bag and the bottom 20 of that bag.
  • a bag 3 has been separated from the sheet material when it arrives at station II. At the same time it has been suspended on carrying means in the machine that move it forward for further processing,
  • the waste 4 produced at the bottom of the sheet material by the cutting operation is pulled out of the machine via two driven discharge rollers 21.
  • the devices described in the following are mounted on a turret plate 23 which is secured to the vertical main shaft 22 of the machine.
  • a turret plate 23 which is secured to the vertical main shaft 22 of the machine.
  • each carrying arm 25 which extends parallel to the bearing pin 47, two transverse shafts 26 are secured, which thus extend parallel to the holder 24.
  • a bracket 27 is secured which, at its center, carries an outwardly located guide roller 28.
  • the roller 28 runs in a guiding track 29 extending along the circumference of the turret plate, and in the embodiment shown the track 29 has a U-shaped section.
  • the guiding track 29, at certain places of the machine is effective to raise or lower the carrying units and to pivot each unit about the associated vertical bearing pin 46.
  • Each arm 30 carries two thin, flexible bag carrying blades 31, vide FIGS. 1 and 2, which normally extend parallel to each other and whose length is slightly less than the internal width of a flattened bag 3, vide FIG. 2.
  • the carrying blades 31 may be made of steel strip which tolerates repeated bending and which, due to its elasticity reassumes its rectilinear shape when the blades are relieved of outer forces.
  • the sheet material 1, 2 is transferred to the carrying blades 31, cf. FIG. 1 and FIGS. 3-5.
  • the arm 25 and the shafts 26 assume the positions shown in. full lines in FIG. 3 since the guiding track 29 is lifted in this station.
  • the track is interrupted here and between its two ends there is inserted a vertically displaceable lifting fork 32 which, by means of driving members, not shown, can be moved up and down along a vertical guide shaft 54.
  • One end of the guiding track 29 is in line with the fork 32 in its lifted position as shown in full lines in FIG. 3, and it is seen that in this position the arms 30 and the carrying blades are raised above and consequently clear of the edge of the sheet material.
  • the fork 32 is lowered to the position shown with dotted lines, whereby the topmost edges of the carrying blades 31 come to lie below the two folded edge zones and 6 of the strips 1 and 2.
  • the two carrying blades 31 are brought into engagement with the strips 1 and 2 when the fingers 33 press upon rollers 48, vide FIGS. 1 and 3, provided on the ends of the transverse arms 30. It is possible, at the same time, to in ject air upwardly from nozzles, not shown, into the folds of the strips below the bent edge zones 5 and 6, which thus may be separated from each other asshown in FIG. 3.
  • FIG. 5 illustrates the suspension of the bag on the carrying blades in station II, in which the carrying unit has been pivoted about the pin 46 due to the shape of the guiding track, not shown, which interacts with the roller on the arm 53.
  • the carrying blades 31 are simultaneously displaced forwards relative to the sheet material, cf. FIG. 2, whereby they have been brought into engagement with the leading bag edge 18 already welded, so that the welding of the trailing edge 17 of the bag takes place immediately behind the rearmost end of the blades 31.
  • each wedge block 40 has two guiding tracks 55 which are formed between a centrally projecting part 56 of the block and two projecting edge parts 57. As shown in FIG. 6, the sides of the tracks 55 have different slopes, so that each track diverges downwards towards the bag.
  • the wedge block 40 is displaced obliquely downwards and outwards, the active edges of the central part 56 engage with the rollers 48 on the ends of the two carrying arms 30, whereby these arms and the blades 31 are forced away from each other.
  • the mouth of the bag is opened thereby, so that a funnel 34 can be swung into the mouth of the bag.
  • the funnel 34 is slit in a longitudinal median plane and thus comprises two parts 34a and 34b, which, at the mouth of the funnel, are connected to each other by means of a tooth-like projection 58 on the part 34a and a matching recess 59 in the part 34b.
  • Each of the two parts of the funnel are, by means of pins 38, rotatably connected with an arm 39 that is pivotable in a vertical plane about a shaft 60.
  • an arm 35 is fixed to the funnel part 34b, which arm carries a roller 36, running in a stationary guiding track 37, vide FIGS. 6-8.
  • the track 37 has such an outline that the two funnel parts 34a and 34b, in a swung-out position, which is shown in dotted lines in FIG.
  • the goods to be filled into the bag can now be placed in the bag and, if poultry or other piece goods are to be packaged, the goods in question may be placed in the funnel 34 already when it assumes the horizontal position outside the bag, cf. FIG. 6, so that all the operator has to do after the funnel has lgeen swung in, is to push the goods through the funnel into the
  • the operator actuates a switch which starts the intermittent rotation of the turret plate 23, and, thereby, also the other programme for moving the components of the machine including the advance of the sheet material 1, 2.
  • the funnel 34 is swung out of the bag and the wedge blocks 40 are raised, whereby the rollers 48 are moved towards one another by the active edge surfaces on the outer parts 57 of the blocks. Due to the above-mentioned divergence of the wedge tracks 55, the rollers 48 and hence the anns 30 are not brought quite together, so that the mouth of the bag is slightly open now.
  • the position of the arms 30 may be fixed by means of ball catches, not shown, in the arms, which interact with circumferential locking grooves in the shafts 26.
  • the turret plate with the carrying unit is now rotated to station V, where no operation takes place, and further to the closing station VI.
  • the carrying unit is again pivoted up into a horizontal position due to the upward gradient of the guiding track 29 between the stations IV and VI.
  • the closing station VI there are two very diagrammatically shown grippers 41, vide FIG. 10, which are swung in to engage the filled bag and to hold same.
  • the grippers 41 have, in this manner, relieved the carrying blades 31, the grippers are slightly raised and a unit consisting of two coaxial tubes 42 and 43 are inserted from above into a partially open mouth of the bag in order to twist it together.
  • the tube unit which is seen on a larger scale in FIG. 12, consists of an outer tube 42, which is rotatable about a vertical axis, and a non-rotatable inner tube 43, which may be axially displaceable in relation to the outer tube 42.
  • the inner tube 43 is, at its upper end, not shown, connected to a vacuum source, and in the vicinity of the lowermost end of the tube 42, two seals 61 are fitted between the two tubes, which seals delimit an annular space, within which radial apertures 62 and 63, respectively, are provided in the walls of the two tubes.
  • the apertures 62 in the outer tube may, along their external edges, be provided with a rubber coating.
  • the closing station VI there are, moreover, two heating elements 44, vide FIGS. 1 and 11, which may be sw'ung from the position shown in full lines in FIG. 11 into the position shown in dotted lines, in which latter position the heating elements are in contact with the ends of the mouth of the bag, so that the weld between the two strips and the folded edge zones 5 and 6 is melted at these points whereby the bag is released from the blades 31.
  • the vacuum source not shown
  • the tube 43 By connecting the vacuum source, not shown, to the tube 43, the bag is evacuated and its neck portion is drawn, by suction, hard against the outer tube 42 due to the communication through the apertures 62 and 63.
  • the tube 42 is now rotated, while the bag is held by the grippers 41, the neck of the bag is twisted together around the tube 42.
  • the inner tube 43 may be pulled out axially through the tube 42.
  • a sealing strip is applied, which may be done in a manner not shown in detail, by means of a diagrammatically shown closing device 45, FIG. 1, which comprises a supply roll 64 of sealing material and a knife 49 for cutting off excess material from the neck of the bag.
  • the rotating tube 42 is raised into the position shown in dotted lines in FIG. 10 and the grippers 41 are swung back whereupon the filled and closed bag drops out of the machine, for example, down onto a conveyor chute,
  • a machine for producing and filling bags comprising means for horizontally advancing a continuous sheet material comprising two parallel strips, means for outwardly folding a marginal edge portion of each of the strips when said strips are advanced, folded edge portions being disposed adjacent a mouth of a bag subsequently formed from said strips, means for joining together said strips along a desired outline of a bag,-
  • means for separating the bag thus formed from said sheet material holding means for gripping the two strips from the outside adjacent the mouth of the bag and for transporting the bag to a filling station, said holding means com rising two thin, flexible b ades Wl'llCll, subsequent to the fol mg, are introduced into the two folds formed and means for introducing the blades into said folds, means associated with said filling station for spacing said flexible blades-apart from one another to open the mouth of said bag, means for inserting a product into the opened bag, means for subsequently moving the blades towards one another; and means for transporting the filled bag to a closing station.
  • said filling station comprises a funnel which is slit lengthwise into two parts, means to swing said funnel into the open bag from an essentially horizontal position outside said bag, and means for effecting a controlled swinging of the two funnel parts towards and away from each other about individual transverse axes at the wide end of the funnel.
  • a machine according to claim 1 including arms mounting said blades displaceable relative to each other, and means to raise and lower said arms relative to the path of advance of said strips.
  • a machine including frame comprising said two arms, said means to raise and lower said arms comprising means to drive the frame along a path parallel to the path of advance of said strips, and means defining said path for the frame with positions thereon in which the frame is lowered and raised.
  • each of said frames has a roller guide on said track for effecting lowering and raising thereof.
  • said joining means comprises means to form in one operation the trailing longitudinal seam of a leading bag and! a leading longitudinal seam of a next successive trailing-bag, and means to join bottoms thereto.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Package Closures (AREA)
US32009A 1969-04-29 1970-04-27 Machine for producing and filling bags Expired - Lifetime US3656274A (en)

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DK236769 1969-04-29

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US (1) US3656274A (de)
BE (1) BE749681A (de)
DE (1) DE2020426A1 (de)
FR (1) FR2040364A1 (de)
NL (1) NL7006153A (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256028A (en) * 1979-09-07 1981-03-17 Owens-Illinois, Inc. Method and apparatus for making plastic preforms for packaging containers
US4448010A (en) * 1981-12-14 1984-05-15 Anderson Bros. Mfg. Co. Method and apparatus for making bag-type packages
US4457124A (en) * 1981-07-24 1984-07-03 Johannes Hartmann Bag-packaging machine for bread
US4590747A (en) * 1984-05-11 1986-05-27 Robert Alameda Positive displacement filling machine
WO1998019912A2 (en) * 1996-11-06 1998-05-14 Slidell, Inc. Bag filling, closing, and sealing machine
US6035606A (en) * 1998-03-24 2000-03-14 Bussey, Iii; Harry Filling machine for particulate material
US20060213816A1 (en) * 2003-02-14 2006-09-28 Dijkstra Vereenigde Bedrijven B.V. Inspection device for loose objects, such as tablets
US20070138446A1 (en) * 2005-12-20 2007-06-21 Shinano Kenshi Kabushiki Kaisha Nickel powder and method of producing the same
US20080156393A1 (en) * 2006-12-28 2008-07-03 Smurfit Kappa Bag In Box Method and plant for packaging a sterile or non-sterile, liquid or semi-liquid, foodstuff product or the like in a flexible bag
CN104627439A (zh) * 2015-02-10 2015-05-20 吴中经济技术开发区越溪斯特拉机械厂 一种自动摇控器打包机的闭口装置
US20180044044A1 (en) * 2016-01-11 2018-02-15 Camilo Pedro Abati Packaging machine for fowls

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110963103B (zh) * 2019-12-17 2024-06-25 厦门宏泰智能制造有限公司 产品及说明书自动装袋设备
CN113772179B (zh) * 2021-07-28 2023-02-24 广州市格风服饰有限公司 一种用于服装快递自动包装的多工位快递包装机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2754644A (en) * 1953-06-10 1956-07-17 Pneumatic Scale Corp Method of and apparatus for producing filled bags
US3398503A (en) * 1963-01-17 1968-08-27 Bertoglio Guido Filling and closing apparatus for bags of thermoplastic material
US3553934A (en) * 1967-12-08 1971-01-12 Riegel Paper Corp Packaging machine for forming and filling bags of different lengths and widths

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2754644A (en) * 1953-06-10 1956-07-17 Pneumatic Scale Corp Method of and apparatus for producing filled bags
US3398503A (en) * 1963-01-17 1968-08-27 Bertoglio Guido Filling and closing apparatus for bags of thermoplastic material
US3553934A (en) * 1967-12-08 1971-01-12 Riegel Paper Corp Packaging machine for forming and filling bags of different lengths and widths

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256028A (en) * 1979-09-07 1981-03-17 Owens-Illinois, Inc. Method and apparatus for making plastic preforms for packaging containers
US4457124A (en) * 1981-07-24 1984-07-03 Johannes Hartmann Bag-packaging machine for bread
US4448010A (en) * 1981-12-14 1984-05-15 Anderson Bros. Mfg. Co. Method and apparatus for making bag-type packages
US4590747A (en) * 1984-05-11 1986-05-27 Robert Alameda Positive displacement filling machine
WO1998019912A3 (en) * 1996-11-06 1998-07-23 Slidell Inc Bag filling, closing, and sealing machine
US5771667A (en) * 1996-11-06 1998-06-30 James R. McGregor Bag filling, closing, and sealing machine
WO1998019912A2 (en) * 1996-11-06 1998-05-14 Slidell, Inc. Bag filling, closing, and sealing machine
US6035606A (en) * 1998-03-24 2000-03-14 Bussey, Iii; Harry Filling machine for particulate material
US20060213816A1 (en) * 2003-02-14 2006-09-28 Dijkstra Vereenigde Bedrijven B.V. Inspection device for loose objects, such as tablets
US7796799B2 (en) * 2003-02-14 2010-09-14 Hd Medi B.V. Inspection device for loose objects, such as tablets
US20070138446A1 (en) * 2005-12-20 2007-06-21 Shinano Kenshi Kabushiki Kaisha Nickel powder and method of producing the same
US20080156393A1 (en) * 2006-12-28 2008-07-03 Smurfit Kappa Bag In Box Method and plant for packaging a sterile or non-sterile, liquid or semi-liquid, foodstuff product or the like in a flexible bag
CN104627439A (zh) * 2015-02-10 2015-05-20 吴中经济技术开发区越溪斯特拉机械厂 一种自动摇控器打包机的闭口装置
US20180044044A1 (en) * 2016-01-11 2018-02-15 Camilo Pedro Abati Packaging machine for fowls

Also Published As

Publication number Publication date
NL7006153A (de) 1970-11-02
BE749681A (fr) 1970-10-01
FR2040364A1 (de) 1971-01-22
DE2020426A1 (de) 1970-11-12

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