US3908335A - Apparatus for packing plastic bags with contents of constant and preselected weight and operating in a continuous and automatic cycle - Google Patents

Apparatus for packing plastic bags with contents of constant and preselected weight and operating in a continuous and automatic cycle Download PDF

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US3908335A
US3908335A US465355A US46535574A US3908335A US 3908335 A US3908335 A US 3908335A US 465355 A US465355 A US 465355A US 46535574 A US46535574 A US 46535574A US 3908335 A US3908335 A US 3908335A
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bag
length
operable
envelope
gripping
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Roberto Giannelli
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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
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/02—Machines characterised by the incorporation of means for making the containers or receptacles

Definitions

  • a vertically reciprocable clamp embraces the end of flattened plastic tubing wound on a reel and clamps the same against a clamping insert in the end of the tubing and resting freely on inwardly projecting portions of the outer clamp, and a length of the flattened tubing, equal to the height of the bag, is drawn upwardly in a supporting frame and through a sealing, cutting and gripping station. The upper end of the drawn length is gripped by nippers, and the outer clamp and the insert are then withdrawn downwardly.
  • a sealing device atthe sealing, cutting and gripping station then seals the lower end of the drawn length to form a bag, and a cutting device cuts the formed bag from the length of flattened tubing. Grips at the sealing, cutting and gripping station then lift the sealed lower end of the bag, and the nippers are actuated to open the upper end of the bag for discharge of the contents into the bag. A further sealing device adjacent the nippers then seals the open upper end of the filled bag, after which the filled bag is released for delivery. The operation is cyclically repeated in an automatic and continuous repetitive cycle.
  • This invention relates to apparatus for packing bags with contents of constant and preselected weight by forming, filling and sealing the bags automatically and continuously in a repetitive cycle and, more particularly, to a novel and improved apparatus of this type.
  • the apparatus of the invention includes means for storing an envelope of continuous tubular or netting type plastic material, and means for advancing, in a vertical ascent, a length of the envelope coresponding to the height of the bag.
  • the apparatus includes means for gripping the upper end of the vertically oriented envelope, and having the further function of opening and closing the open upper end of the envelope.
  • Means are provided to seal the bottom end of the envelope to form an open top bag, and cutting means sever the open top bag from the remaining portion of the envelope.
  • Gripping means are operable to grip the open top bag above its bottom end and to raise the bottom of the bag, while the top of the bag is opened to receive the contents. After the bag is filled, further sealing means seal the open upper end of the bag.
  • the apparatus further includes means for controlling the movement of the various sliding and/or rotating parts, means for programming the various operations constituting the operating cycle, and means for intervening in the pre-established cycle.
  • An object of the invention is to provide improved apparatus for packing bags with contents of constant and preselected weight. 7
  • Another object of the invention is to provide such an improved apparatus for forming, filling and sealing the bags automatically and continuously in a repetitive cycle.
  • a further object of the invention is to provide such an apparatus which is simple inconstruction, reliable in operation, and economical to manufacture and to operate.
  • FIGS. 1 through 7 are partial elevation views of apparatus embodying the invention, and representing, in order, the essential operations for forming, filling and sealing bags automatically and continuously in a repetitive cycle.
  • FIG. 8 is a front elevation view, partly in section, of apparatus embodying the invention.
  • FIG. 9 is a side elevation view, partly broken away and partly in section, of the apparatus shown in FIG. 8;
  • FIG. 10 is a horizontal sectional view taken on the line AA of FIG. 9;
  • FIG. 11 is a horizontal sectional view taken along the line BB of FIG. 9;
  • FIG. 12 is a plan view of a wire stitcher forming part of the apparatus.
  • FIG. 13 is a front elevation view of the wire stitcher shown in FIG. 12; i I
  • FIGS. 14, 15, 16 and 17 are vertical sectional views illustrating the successive steps in the formation of a seal fastener
  • FIGS. 18 and 19 are elevation views of two types of network bags formed in accordance with the invention, having respectively different bottom closures.
  • FIG. 20 is a perspective view illustrating a detail of a seal fastener.
  • the apparatus embodying the invention includes a tower-type frame 1 having mounted, adjacent its lower end, a rotatable spool or reel 2 for storing a continuous flattened tubular envelope 3 of synthetic resin material, and preferably in the form of a tubular netting.
  • a vertically oriented piston-cylinder fluid pressure actuator 4 is arranged to vertically reciprocate a box-form outer clamp 5, which is open at its top and at its sides, and whose function it is to grip and hold open the tubular envelope at the upper end or mouth of each bag to be formed.
  • outer clamp 5 cooperates with an insert or block 6, of substantially parallelepiped form, within the envelope 3, insert or block 6 having a rounded lower or base end and being supported by horizontally extending internal projections 7 of outer clamp 5.
  • Actuator 4 is mounted is a rectangular U-shaped frame 61 mounted for vertical reciprocation in upright guides 62 supported in main frame 1. Reciprocation of frame 61 is effected by a vertically oriented pistoncylinder fluid pressure actuator 36 secured to the bottom cross member of the frame. Frame 61 carries bearings 63 through which are slidably guided rods 64 whose upper ends are connected to outer clamp 5, the lower ends of rods 64 being interconnected by a crossmember 65.
  • rods 64 and outer frame 5, together with insert 6, are vertically reciprocable relative to frame 61.
  • a crossmember. of the frame supports two rotatable spools 8 having wound thereon respective strips 9 of thermoplastic material serving as sealing labels.
  • An assembly, generally indicated at 66, is connected to actuator 4 through the outer clamp 5 at the rods 63.
  • a guide 10, formed with inwardly and upwardly'converging guide slots 10' for the labels 9, is reciprocable vertically of assembly 66 under theaction of a piston-cylinder fluid pressure actuator 15 mounted on'the actuator 4.
  • Two pairs of cooperating rollers 11 and 12, for entraining labels 9, are rotatably mounted in guide adjacent the slots 10', and rotation of the rolls is effected by respective rack and pinion groups 13 and 14 which act only during the vertical upward movement of guide 10 effected by actuator 15.
  • Assembly 67 includes a pair of horizontally reciprocable supports 18 each supporting a respective heat sealing or welding bar 16 and a respective shearing or cutting blade 1?.
  • Supports 18 are horizontally reciprocated toward and away from each other, to effect a sealing and cutting operation, by horizontally oriented piston-cylinder fluid pressure actuators 19.
  • the sup ports 18 are slidably mounted, and guided for horizontal movement, on a substantially horizontal guide structure 68.
  • Guide structure 68 is formed with an extension 69 extending therefrom substantially perpendicular to the direction of movement of the supports 18, and extension 69 supports, for horizontal reciprocation, a slide 70 guided on guide rods 71.
  • Slide 70 is reciprocated, at right angles to the direction of reciprocation of the supports 18, by a horizontally oriented pistoncylinder fluid pressure actuator 21 connected thereto through a swinging link 72.
  • Slide 70 supports nipping means comprising a pair of arms 73 pivotally mounted on slide 70 and articulatedly connected by a link-74 for conjoint opening and closing movement by the action of a horizontally oriented piston'cylinder fluid pressure actuator 22 mounted on slide 70.
  • the nipper or nipping means 20 has the function of gripping the envelope 3 after the formation or closing of the bottom of the bag.
  • nipper assemblies 23 are supported at the outer ends of the piston rods 25 of respective horizontally oriented piston-cylinder fluid pressure actuators 25 mounted on frame 1.
  • Each nipper assembly 23 includes a substantially vertically oriented fixed arm 23' and a pivoted arm 23".
  • the nipper assemblies 23 are closed and opened by respective horizontally oriented pistoncylinder fluid pressure actuators 24, each mounted on a respective piston rod 25 and each connected to a respective pivoted arm 23.
  • Nipper assemblies 23 have the function of receiving and gripping the open upper end of the envelope length 3 when this is advanced upwardly by the clamping arrangement 5-6, and the further function of opening the mouth of the bag for filling of the contents thereinto.
  • a pair of frame cross-members 75 support two spaced and parallel guide rods 76 on which there is reciprocable a stitcher assembly generally indicated at 26.
  • a cantilever support 77 extends outwardly from frame 1 and rotatably supports a spool 27 on which is wound a sealing wire or tape 28.
  • Stitcher assembly 26 is horizontally reciprocated by a horizontally oriented piston-cylinder fluid pressure actuator 29 mounted on frame 1.
  • a horizontally oriented forked plate 30 is slidably mounted in a pair of guides 78 for reciprocation toward and away from a bag held in the nipper assemblies 23.
  • Forked plate 30 is horizontally reciprocated by a piston-cylinder fluid pressure actuator 31 articulated on frame 1, through the medium of a link 32, pivotally mounted intermediate its ends on frame 1 and having one end articulated to the piston rod of actuator 31 and the other end articulated to plate 30.
  • Forked plate 30 cooperates with a second fork 33 secured to stitcher assembly 26, and the two forked plates have the function of receiving and pressing or squeezing the envelope 3' near the upper end of the bag after the bag has been filled with its contents, as well as-during the application of a seal fastener
  • the products or contents are supplied to each bag I from a hopper 60 mounted on the upper end of frame 1.
  • the apparatus further includes automatic means for controlling the supply and exhaust of pressure fluid to the various operating cylinders, in the order and for the period required by the operating cycle.
  • the distributor means have not been shown in the drawings, for the sake of simplicity, as such distributor means may be of any known type such as, for example, a distributor provided with valves operated by cams on a cam shaft.
  • the various operating cylinders further include a pistoncylinder fluid pressure actuator 35 associated with the stitcher assembly 26.
  • Stitcher assembly 26 comprises means for advancing the metal wire or tape 28 drawn from spool 27, means for cutting a portion of the wire needed for the formation of a ringshape fastener around the neck of the bag, and means for fastening the wire portion around the neck of the bag.
  • the wire feeding means comprises, as best seen in FIG. 12, a pair of cooperating feeding rollers or rolls 37 and 38 mounted for rotation on vertical axes and having knurled external surfaces, the opposing surfaces of the two rolls being maintained close to each other.
  • Roll 37 is fixed to a ratchet gear 39 concentric therewith, and is controlled to rotate in the feeding direction of the wire 28 by means of a pawl 40 mounted on the end of rod 41 and spring-biased into engagement with the teeth of ratchet wheel 39.
  • Rod 41 has a stop 79 fixed to its opposite end and engageable by a stop on the piston rod 35' of actuator 35 during return movement of stitcher assembly 26.
  • a helical spring 42 biases rod 41 in the opposite or idling direction.
  • wire 28 is advanced stepwise during each return movement or idle movement of.
  • the wire cutting means comprises a straight blade 43 secured fixedly to the stitcher head 26 and cooperating with a diaphragm 44 having an aperture 45 through which the wire 28 extends.
  • Straight blade 43 thusoperates in the nature of a guillotine whenever the stitcher head, in its active course, covers aperture 45.
  • the means for forming the ring-type fastener comprise, essentially, a base 59 having a first transverse slot 59 for the passage of the neck of the bag, and also having a longitudinal slot 59" for mounting a rocker arm 50.
  • the fastener formation means further include an active head, formed by an upper plate 46 and a lower plate 47 which are superposed and secured to each other to define an intermediate space slidably receiving an intermediate plate 48 retained between a flap 47a of plate 47 and a pivotally mounted eccentric 49.
  • a diaphragm 56 is secured to base 59 and has a double horizontal and longitudinal slot 57-58.
  • Eccentric 49 is interposed between plates 46 and 47 for pivoting on a vertical axis, eccentric 49 being coplanar with intermediate plate 48.
  • the rocker arm 50 is pivoted internally of base 59 for pivoting about a horizontal axis, and is formed with three lugs 52, 53 and 54 projecting vertically from its upper edge.
  • An anvil 55 is mounted opposite plate 48 and is
  • Eccentric 49 isj shaped somewhat like a boomerang and has a shorter arm in contact with one end of plate 48.
  • the eccentric is oscillated, in opposite directions during the alternating movement of the activehead of the stitching assembly, by engagement of its longer arm against the post 56 of diaphragm 56, during the active movement of the head, and engagement of its longer arm against the post 56" of diaphragm 56 during idle movement of the active head.
  • This oscillation of eccentric 49 causes, respectively, the return and the forward movement of plate 48 relative to flap 47a of plate 47.
  • the three lugs 52, 53 and 54 of rocker arm 50 are insertable, respectively, in slot 59" of base 59, in a longitudinal groove 47' in the lower face of plate 47, and in a longitudinal groove 47" also formed in the lower surface of plate 47, the position of the lugs 53 and 54 defining that of lug 52.
  • lug 54 is below the lower surface of plate 47 and lug 53 is within groove 47', so that lug 52 runs in the slot 59 and hence is in a ralsed position with respect to base 59.
  • lug 54 is engaged in groove 47"
  • lug 53 is below the lower surface of plate 47, and lug 52 therefore engages beneath the lower surface of plate 47 and is in a lowered position relative thereto.
  • the ring-shaped fastener is formed in a manner which will now be described. From the position shown in FIG. 12, the active stitcher head, advancing toward the anvil 55 under the thrust of actuator 35, blade 43,
  • wire portion 28' is retained between plates 46 and 47 of the active head, and horizontally in 35 notches at the right end of the two arms of plate 48, as well as against the lug 52 as shown in FIG. 14. Subsequently, wire portion 28' is pressed by the two legs of plate 48 against lug 52 so that, while remaining tightly engaged between the inner flanks of the legs of plate 48 and the sides of lug 52, it is formed into a U-shape as fastener around the neck of the bag, as shown in FIG.
  • the apparatus At the beginning of the operative cycle comprising the making up or formation of a bag, the apparatus is in the position illustrated in FIG. 1, FIG. 8, FIG. 9 and FIGS. and 11, namely, with the actuators 4 and 36 at lower dead center, the welding bars 16 and cutting blades 17 spread apart, nippers spread and off-center, forks and 33 spread apart, and nippers 23 engaged but with theirjaws or arms 23, 23" open.
  • the apparatus performs a continuous and automatically operative cycle comprising, in order, the following operations: 4
  • the bag formed according to the operating cycle just described is of the type shown in FIG. 18.
  • the bag may be formed without the bottom weld, by means of two opposed thermoplastic labels, but with the bottom being sealed by a metallic ringshape fastener, as shown in FIG. 19.
  • the bags may be formed from a continuous tubular sheath of thermoplastic material or the like, the bottom and/or mouth of which are sealed in the manner described, or by welding.
  • Apparatus for packing bags with contents of constant and preselected weight by forming, filling and sealing the bags automatically and continuously in a repetitive cycle comprising, in combination, drawing means operable to take, from a supply thereof, a length of tubular envelope equal to the height of the bag and to orient such length vertically; first gripping means operable to receive the length from said drawing means and to grip the upper end of such length to suspend the length; first sealing means opera- I ble to seal the bottom end of the suspended length to a continuous tubular envelope; said drawing means including means for holding spread and partially open the free end of the envelope, and means for gripping and extending vertically a portion of the envelope equal to the height of the bag; said first gripping means being further operable to open and close the free end of the vertically extended envelope portion; said first sealing means including cutting means operable to cut off the bag below the sealed bottom end thereof to sever the bag from the remaining length of the envelope; means operable to control the operation of said drawing, gripping, sealing and spreading means in accordance with
  • Apparatus for packing bags including a vertically oriented fluid pressure actuator connected to said outer clamp to move said outer clamp vertically to extend a portion of the envelope equal to the height of the bag.
  • Apparatus for packing bags with contents of constant and preselected weight by forming, filling and sealing the bag automatically and continuously in a repetitive cycle comprising, in combination, drawing means operable to take, from a supply thereof, a length of tubular envelope equal to the height of the bag and to orient such length vertically; first gripping means operable to receive the length from said drawing means and to grip the upper end of such length to suspend the length; first sealing means operable to seal the bottom end of the suspended length to form an open top bag; second gripping means operable to grip and lift the bottom of the formed bag; spreading means, including said first gripping means, operable to spread open the upper end of the bag for filling of the contents into the bag; second sealing means operable to seal the upper end of the filled bag; means for storing a continuous tubular envelope; said drawing means including means for holding spread and partially open the free end of the envelope, and means for gripping and extending vertically a portion of the envelope equal to the height of the bag; said first gripping means being further operable to
  • Apparatus for packing bags including respective shearing blades carried by said supports below the associated welding bars to sever the bag from the continuous envelope.
  • Apparatus for packing bags with contents of constant and preselected weight by forming, filling and sealing the bags automatically and continuously in a repetitive cycle comprising, in combination, drawing means operable to take, from a supply thereof, a length of tubular envelope equal to the height of the bag and to orient such length vertically; first gripping means operable to receive the length from said drawing means and to grip the upper end of such length to suspend the length; first sealing means operable to seal the bottom end of the suspended length to form an open top bag; second gripping means operable to grip and lift the bottom of the formed bag; spreading means, including said first gripping means, operable to spread open the upper end of the bag for filling of the contents into the bag; second sealing means operable to seal the upper end of the filled bag; means for storing a continuous tubular envelope; said drawing means including means for holding spread and partially open the free end of the envelope,-and means for gripping and extending vertically a portion of the envelope equal to the height of the bag; said first gripping means being further operable
  • a support for said second gripping means including a support for said second gripping means; and t a third vertically oriented fluid pressure actuator engageable with said support and operable, when said nipper is in gripping relation with the bottom end of the suspended length, to lift said gripper.
  • Apparatus for packing bags with contents of constant and preselected weight by forming, filling and sealing the bags automatically and continuously in a repetitive cycle comprising, in combination, drawing means operable to take, from a supply thereof, a length of tubular envelope equal to the height of the bag and to orient such length vertically; first gripping means operable to receive the length from said drawing means and to grip the upper end of such length to suspend the length; first sealing means operable to seal the bottom end of the suspended length to form an open top bag; second gripping means operable to grip and lift the bottom of the formed bag; spreading means, including said first gripping means, operable to spread open the upper end of the bag for filling of the contents into the bag; second sealing means operable to seal the upper end of the filled bag; means for storing a continuous tubular envelope; said drawing means including means for holding spread and partially open the free end of the envelope, and means for gripping and extending vertically a portion of the envelope equal to the height of the bag; said girst gripping means being further
  • said cutting means of said stitcher head includes a diaphragm formed with an aperture through which the length of metal extends, an active head of said stitcher reciprocable toward and away from said second gripping means, and a straight blade secured to said active head and movable along said diaphragm across said aperture, during advance of said active head toward said second gripping means, to sever a short length of the metal.
  • annular fastener formation means comprises, in combination, a base having a transverse slot to receive the neck of the bag to be sealed, and a longitudinal slot; a rocker arm pivotally mounted, intermediate its ends, in said longitudinal slot; an active head formed by an upper plate, a lower plate, and an intermediate plate slidably mounted between said upper and lower plates; a U-shape eccentric pivotally mounted intermediate its ends between said upper and lower plates, and having a longer arm and a shorter arm; a diaphragm fixed to said base and having a pair of longitudinally spaced abutments engageable with the longer arm of said eccentric; said intermediate plate being contained between a flap of said lower plate and said eccentric; said rocker arm having an elongated abutment on one end, a second abutment on its opposite end, and a third abutment between its pivot and said elongated abutment; said upper, lower and intermediate plates defining an opening for projection of said

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Closures (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Making Paper Articles (AREA)
US465355A 1973-05-03 1974-04-29 Apparatus for packing plastic bags with contents of constant and preselected weight and operating in a continuous and automatic cycle Expired - Lifetime US3908335A (en)

Applications Claiming Priority (1)

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IT9442/73A IT985536B (it) 1973-05-03 1973-05-03 Apparecchiatura per la confezione di sacchi in plastica con contenuto di peso costante e prestabilito funzionante a ciclo continuo ed automatico

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US (1) US3908335A (it)
JP (1) JPS5014486A (it)
DE (1) DE2420642A1 (it)
FR (1) FR2227994B3 (it)
IT (1) IT985536B (it)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4947625A (en) * 1988-11-14 1990-08-14 Zike Donald R Bag-forming and filling apparatus and process
US5086609A (en) * 1990-01-30 1992-02-11 Windmoller & Holscher Method and an apparatus for producing, filling and sealing bags
US5729961A (en) * 1995-05-16 1998-03-24 Talleres Daumar S.A. Process for obtaining packets full of products by means of a continuous tube of net
GB2405133A (en) * 2003-08-22 2005-02-23 Valmet Atlas Plc Packaging delicate items in tubular wrapping
US20130036710A1 (en) * 2010-04-29 2013-02-14 Thomas Knoke Method and device for producing and filling packaging means
US20130203574A1 (en) * 2011-08-26 2013-08-08 Weilong Cao Lower Sealing and Cutting Device of Tubular Material Packaging
US20160096641A1 (en) * 2014-10-02 2016-04-07 The Boeing Company Packaging apparatuses, systems, and methods
US20170050404A1 (en) * 2015-08-17 2017-02-23 Medline Industries, Inc. Cutting Apparatus and Associated Systems and Methods
US11066202B2 (en) * 2014-06-18 2021-07-20 Pregis Sharp Systems, Llc Bagging machine and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4619104A (en) * 1985-01-31 1986-10-28 Yakima Wire Works, Inc. Net bag forming method and machine

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US2847806A (en) * 1955-06-16 1958-08-19 Wang Herman Packing machines
US2908123A (en) * 1955-01-11 1959-10-13 Permac A G Method for producing a bag-shaped packing and device for carrying out this method
AU236873B2 (en) * 1959-06-04 1960-12-01 Oliver Cromwell Ives Alfred Improved flow switch
US3070927A (en) * 1959-12-30 1963-01-01 Lundahl Lennart Viktor Samuel Method of and apparatus for making and filling flexible-walled tubes
US3324621A (en) * 1963-06-10 1967-06-13 Mayer & Co Inc O Packaging machine
US3380226A (en) * 1966-03-21 1968-04-30 Kartridg Pak Co Packaging machine
US3563002A (en) * 1969-03-05 1971-02-16 Frank M Givin Grocery packaging apparatus
US3662514A (en) * 1969-09-15 1972-05-16 Ideation Inc Packaging system
US3792565A (en) * 1969-05-27 1974-02-19 Rottneros Ab Wrapping machines
US3795083A (en) * 1972-06-06 1974-03-05 Kartridg Pak Co Wraparound closure clip applying mechanism

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Publication number Priority date Publication date Assignee Title
US2908123A (en) * 1955-01-11 1959-10-13 Permac A G Method for producing a bag-shaped packing and device for carrying out this method
US2847806A (en) * 1955-06-16 1958-08-19 Wang Herman Packing machines
AU236873B2 (en) * 1959-06-04 1960-12-01 Oliver Cromwell Ives Alfred Improved flow switch
US3070927A (en) * 1959-12-30 1963-01-01 Lundahl Lennart Viktor Samuel Method of and apparatus for making and filling flexible-walled tubes
US3324621A (en) * 1963-06-10 1967-06-13 Mayer & Co Inc O Packaging machine
US3380226A (en) * 1966-03-21 1968-04-30 Kartridg Pak Co Packaging machine
US3563002A (en) * 1969-03-05 1971-02-16 Frank M Givin Grocery packaging apparatus
US3792565A (en) * 1969-05-27 1974-02-19 Rottneros Ab Wrapping machines
US3662514A (en) * 1969-09-15 1972-05-16 Ideation Inc Packaging system
US3795083A (en) * 1972-06-06 1974-03-05 Kartridg Pak Co Wraparound closure clip applying mechanism

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4947625A (en) * 1988-11-14 1990-08-14 Zike Donald R Bag-forming and filling apparatus and process
US5086609A (en) * 1990-01-30 1992-02-11 Windmoller & Holscher Method and an apparatus for producing, filling and sealing bags
US5729961A (en) * 1995-05-16 1998-03-24 Talleres Daumar S.A. Process for obtaining packets full of products by means of a continuous tube of net
GB2405133A (en) * 2003-08-22 2005-02-23 Valmet Atlas Plc Packaging delicate items in tubular wrapping
US20130036710A1 (en) * 2010-04-29 2013-02-14 Thomas Knoke Method and device for producing and filling packaging means
US10046878B2 (en) * 2010-04-29 2018-08-14 Windmoeller & Hoelscher Kg Method and device for producing and filling packaging means
US20130203574A1 (en) * 2011-08-26 2013-08-08 Weilong Cao Lower Sealing and Cutting Device of Tubular Material Packaging
US11066202B2 (en) * 2014-06-18 2021-07-20 Pregis Sharp Systems, Llc Bagging machine and method
US11866212B2 (en) * 2014-06-18 2024-01-09 Pregis Sharp Systems, Llc Bagging machine and method
US20220009662A1 (en) * 2014-06-18 2022-01-13 Pregis Sharp Systems, Llc Bagging machine and method
US20160096641A1 (en) * 2014-10-02 2016-04-07 The Boeing Company Packaging apparatuses, systems, and methods
US11053038B2 (en) 2014-10-02 2021-07-06 The Boeing Company Packaging apparatuses and systems
US10232968B2 (en) * 2014-10-02 2019-03-19 The Boeing Company Packaging methods
US10011423B2 (en) * 2015-08-17 2018-07-03 Medline Industries, Inc. Cutting apparatus and associated systems
US20170050404A1 (en) * 2015-08-17 2017-02-23 Medline Industries, Inc. Cutting Apparatus and Associated Systems and Methods

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Publication number Publication date
DE2420642A1 (de) 1974-11-21
IT985536B (it) 1974-12-10
JPS5014486A (it) 1975-02-15
FR2227994A1 (it) 1974-11-29
FR2227994B3 (it) 1977-03-04

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