EP0267904A1 - Appareil de manipulation de feuilles pour machine de remplissage a deplacement positif - Google Patents

Appareil de manipulation de feuilles pour machine de remplissage a deplacement positif

Info

Publication number
EP0267904A1
EP0267904A1 EP19860903890 EP86903890A EP0267904A1 EP 0267904 A1 EP0267904 A1 EP 0267904A1 EP 19860903890 EP19860903890 EP 19860903890 EP 86903890 A EP86903890 A EP 86903890A EP 0267904 A1 EP0267904 A1 EP 0267904A1
Authority
EP
European Patent Office
Prior art keywords
web
guide member
bag
flexure
frame
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.)
Withdrawn
Application number
EP19860903890
Other languages
German (de)
English (en)
Inventor
Daniel B. Alameda
Gilmore T. Schjeldahl
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0267904A1 publication Critical patent/EP0267904A1/fr
Withdrawn legal-status Critical Current

Links

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
    • 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 packaging machinery and, in particular, to equipment for forming plastic bags from a continuous, folded web of film and for filling the bags with produce or the like.
  • Associated with the present bag filling assembly is apparatus for indexably conveying a folded web of film to a web separating assembly, where the open side of the folded web is separated and each side of the film is clamped in an expandable jaw assembly. Thereafter, the film web is simultaneously sealed and severed by a moving hot knife/anvil assembly to form the sides of the bag. Subsequently, the mouth of the bag is expanded, while the bag is moved to receive the snout of the produce feeder. Control and sequencing of the asemblies is provided by a plurality of motor driven timing cams.
  • SUBSTITUTE SHEET It therefore is an object of the present invention to separate opposed sides of a folded web of film, maintaining control over film displacement and velocity of displacement.
  • Another object of this invention is to provide a web separating apparatus that assists in advancing a continuous folded web in order to more accurately and consistently determine the width of bags formed from the web.
  • the apparatus includes a frame, and a web moving means for supporting a continuous folded web of film for movement along a path relative to the frame.
  • a web separating means spreads the folded sides of the web apart.
  • the separating means includes a substantially rigid first guide member, and a second guide member mounted with respect to the first guide member in a normal position against the first guide member.
  • the separating means also includes a guide supporting means for mounting the first and second guide members with respect to the frame and between the opposed sides of the web, and for reciprocating the guide members along a portion of the path between an upstream position and a downstream position.
  • the separator means further includes an expansion means for moving the second guide member away from the normal position to a web expanding position away from the first guide member when enabled. When it is disabled, the expansion means permits the second guide member to return to the normal position.
  • the first guide member is an elongate bar oriented substantially parallel to the path
  • the second guide member is an elongate flexure fastened at one end to one end of the bar.
  • the expansion means can be a pin, mounted with respect to the frame and reciprocable to contact the flexure and move it to the web expanding position.
  • the pin is retractable to permit the flexure to return to its normal position.
  • the pin can be mounted on the opposite side of the bar from the flexure, in which case it contacts the flexure through an opening in the bar.
  • SUBSTITUTE SHEET Figure 1 is a front elevational view of a packaging apparatus constructed in accordance with the present invention.
  • Figure 2 is a left side elevational view taken along the line 2-2 in Figure 1;
  • Figure 3 is a left side elevational view taken along lines 3-3 of Figure 2;
  • Figure 4 is a rear elevational view taken along line 4-4 of Figure 3;
  • Figure 5 is a top view taken along line 5-5 of Figure 4.
  • Figure 6 shows a top view of a timing shaft and cam assembly of the packaging apparatus
  • Figure 7 is an end elevational view of part of the cam assembly for rotating pedestal mounted clamping members of the packaging apparatus
  • Figure 8 is an end elevational view of part of the cam assembly for raising the pedestal mounted clamping members
  • Figure 9 is an elevational view of the pedestal and clamping members
  • Figure 10 is an elevational view of a spring metal film expanding assembly of the packaging apparatus
  • Figures 11a to lie are elevational views illustrating the operation of the packaging apparatus
  • Figure 12 shows a cycle timing diagram relative to the lapsed time and cam dwell for the various bag forming and filling sequences
  • Figure 13 is a partial front elevation showing an alternative film expanding assembly constructed in accordance with the present invention.
  • Figure 14 is a sectional view taken along the line 14 - 14 in Figure 13;
  • Figure 15 is a perspective view of the alternative film expanding assembly.
  • Figures 16 - 18 * are schematic views illustrating the operation of the alternative film expanding assembly.
  • Figure 1 the produce packaging equipment 2 of the present invention.
  • a frame 4 Mounted on a frame 4 are major subassemblies including an overhead film delivery
  • SUBSTITUTE SHEET assembly 6 a heat sealing/severing assembly 8, a bag clamping/spreading assembly 10, and a side mounted produce receiving and filling assembly 14.
  • Clamping/spreading assembly 10 is mounted upon a transfer pedestal 12 which is raised, lowered and rotated at appropriate times during each cycle.
  • Film supply portion 6 is a roll that supplies a web of longitudinally folded plastic film 16. The roll is chucked to a free rotating, bottom mounted shaft 18.
  • Folded film 16 can have a width ranging from 4 to 20 inches and thickness of 0.5 to 3 mills. It may or may not contain printing or other graphics to identify the contained produce and/or package.
  • Film 16 is threaded about a pair of web tensioning rollers 19 ( Figure 2). From there it is routed through a row indexably driven draw rollers 20 and over a top roller 17 as the film 16 passes from the back to the front of the present apparatus.
  • Film 16 is drawn intermittently from the lower roil supply arbor 18 by an end mounted drive clutche 28, mounted to the ends of the lower row of draw rollers 20.
  • Clutch 28 is driven by a linking chain 30, a timing shaft 32, a transfer chain 34 and a motor 36 coupled thereto.
  • Timing shaft 32 is mounted to frame 4 through a pair of pillow blocks 38 and drives a pair of cams 40 and 42 and a timing chain 44.
  • the timing chain is coupled to a shaft 46 in an enclosure 47 containing a plurality of cam operated electrical switches (not shown). The operation of their respective cams is explained hereinafter.
  • the duration of drive signals to the clutch 28 is set to deliver an appropriate length of film 16 to make a bag of a desired width. Because the bags are made in a horizontally edgewise fashion relative to the direction of film travel, the width of the film 16 determines the length of the bag, while the length of film delivered determines the width of the bag.
  • Figure 2 shows the film delivery assembly 6 and the associated chain drives to the timing shaft 32 and draw rollers 20. As film 16 rises along the rear of frame 4 it traverses the film tensioner 19 and passes over idler roller 17, before being fed through draw rollers 20.
  • a drive chain tensioner 50 is provided for the drive chain 34, coupled to the frame by a
  • SUBSTITUTE SHEET spring 52 Also mounted to the front of packaging assembly 2 is a bag tying device 54 which, upon receipt of a filled bag, pinches the bag opening and seals it by wrapping a piece of adhesive tape around it.
  • bag sealing/severing assembly 8 is seen to include a pneumatically driven anvil 56 movable towards and away from a wedge-shaped, pneumatically driven heated knife member 140 (Figure HA), by a pneumatic cylinder 58 pivotally coupled to anvil 56 to cause it to move towards and away from the heating element.
  • a cylinder I4l controls knife 140.
  • Mounted above the heating element is a blower assembly 60 with ports directed and controliably operated to cool film 16 just after each sealing/severing operation. As film 16 passes through and is held away from packaging assembly 2 by stripper bars 22, it passes between the anvil 56 and the hot knife. Once film 16 is advanced the predetermined length, it is transversely sealed and severed. Sealing operation is aided by a pneumatically driven clamp 62 mounted on the right side of anvil 56 that presses the opposite folded sides of film 16 together prior to sealing/severing film 16 with the hot knife.
  • Pedestal 12 is cam operated by cams 40 and 42, to rise and fall, and rotate, during selected times of each cycle.
  • the clamping portion of clamping/spreading assembly 10 is orthogonally coupled to the upper end of the pedestal 12 by a coupler 64, a tubular member 66 and a flat plate 68. Attached to plate 68 are a pair of pneumatic linear actuators for operating bag clamping plates 70 and 72.
  • Complimentary presser feet 74 and 76 are mounted opposite to clamping plates 70 and 72. The opposite sides of the folded web of film 16 pass between presser feet 74 and 76 and clamping plates 70 and 72, respectively.
  • a pneumatic cylinder 80 when enabled, moves clamping plate 72 laterally toward clamping plate 70 to a position established by bolts 77 holding plate 68.
  • Clamping plate 70 is supported by a curved arm 78 spring loaded by a spring 79.
  • the pneumatic cylinders 82 and 84 are actuated to bring presser feet 74 and 76 against their associated clamping plates 70 and 72 to clamp the sides of film 16 therebetween.
  • a film clamp 62 clamps and immobilizes the upper end of the film 16 before it is sealed and severed by the hot knife. Subsequently, the thus formed bag is opened by the operation of cylinder 80 to cause clamping plate 72 and presser foot 76 to retract and thereby expand the open end of the bag. Thereafter, pedestal 12 is lowered and rotated and the opened bag is inserted onto upper and lower snout portions 86 and 88 of produce filling assembly 14. Assembly 14 is described in greater detail hereinafter.
  • Clamping/spreading assembly 10 also includes a film spreading portion that includes spring metal spreader 24.
  • Figure 10 shows elongated spring metal member 24 bent in an inverted "V" shape adjacent to the right side stripper bar 22.
  • a bent rod member 25, mounted to frame 4 has a portion between the sides of member 24.
  • Member 24 is mounted to a slidable weldment 27 coupled at its upper end to a pneumatic cylinder 29. Cylinder 29 is mounted to frame 4 to raise and lower spring metal member 24 relative to rod member 25.
  • Member 24 is mounted within the opposed open edges of film 16. When member 24 is lowered to overlie the closed clamping plates 70 and 72, it is spread by rod 25 and guides film 16 over the clamping plates. Thereafter, member 24 is raised and film 16 is sealed and severed to form a bag.
  • spring metal member 24 acts to expand and guide the film onto the clamping portion of the assembly 10.
  • Figures 6 - 8 show cam follower linkages used to raise, lower and rotate the pedestal 12.
  • Figure 6 is a top view of timing shaft 32, cams 40 and 42, and their respective cam follower linkage assemblies 87 and 89.
  • Overlying cam 42 is a cam follower 90 mounted on a linking arm 92.
  • Linking arm 92 is pivotally mounted at each of its ends to an overlying support member 94 attached to the frame 4 and an underlying member 96 clamped to pedestal 12.
  • Pedestal 12 is slidably mounted between upper and lower bushings 93 and 95.
  • cam follower 90 follows its profile to cause linking arm 94 and pedestal 12 and the clamping portion of assembly 10 to rise and fall.
  • Cam 40 and its associated linkage assembly 87 are transversely mounted from cam 42 along timing shaft 32.
  • cam follower 98 is disposed on a linking arm 100 pivotally suspended from an overlying arm 102 attached to frame 4.
  • a lower lying linking arm 104 mounts to a transversely extending arm 106 clamped to pedestal shaft 12.
  • Rising from arm 106 is a shaft 107 attached to an upper support arm 109, that also is clamped to the pedestal 12.
  • SUBSTITUTE SHEET follower 98 traverses the profile of cam 40, the linking arm 100 moves to the right and left. This movement is translated to rotation of linking arm 106, support arm 109 and pedestal shaft 12, shown by a broken line in Figure 6. The clamping portion of assembly 10 moves toward and away from snout portions 86 and 88 of the produce filling assembly 14.
  • produce filling assembly 14 is comprised of an overlying produce reservoir or hopper 110 made to contain a quantity of produce to packaged.
  • the bottom of hopper 110 is comprised of a pair of inwardly directed and pivotally mounted flapper plates 112, pneumatically controlled by a pneumatic cylinder 114 and its associated linkage assembly 116 acting upon an axle 118 of each plate.
  • Cylinder 114 controllably causes linking elements 116 to pivot axles 118 and plates 112.
  • produce in hopper 110 drops into a chute 120.
  • the forward, pivotally mounted snout portion 86 is engaged by its associated linking assembly including a pneumatic cylinder 122 to pneumatically raise and grasp a bag, previously inserted over relaxed upper and lower snout elements 86 and 88.
  • Snout portion 86 is raised and lowered by a pneumatic cylinder 122 mounted on the backside of chute 120 ( Figure 3).
  • a pair of linking arms 124 mounted on opposite sides of snout portion 86 are interconnected by an axle 126 to cylinder 122.
  • arms 124 Upon actuation of cylinder 122, arms 124 cause snout portion 86 to rise and fall.
  • the raising of snout portion 86 within the open end of a preformed bag causes the clamping thereof, prior to its filling with produce from hopper 110.
  • a lip 125 on the snout portion 86 facilitates holding the bag.
  • the deposited volume of produce is ejected from chute 120 by a pushing carriage 128, mounted upon a pair of wheels 130 internal to chute 120, and driven by a pulley drive assembly 132 mounted beneath the chute.
  • Pulley drive 132 causes pushing member 128 to move to and fro, much like a shuttle, within chute 120. During its forward movement it ejects the produce into the held bag.
  • FIG. 4 shows the relative mounting of chute 120, drive 132 and hopper 110.
  • Chute 120 is pivotally mounted to frame 4 by a weldment 134 welded at an angle to the frame.
  • the inclination of the chute 12 can be adjusted by loosening or tightening a bolt 136 ( Figure 1) that passes through the upper end of weldment 134.
  • a bolt 136 Figure 1 that passes through the upper end of weldment 134.
  • BSTITUTE SHEET relative to the floor is set somewhere between 0° degrees and 45° degrees.
  • the angle of the shoot 120 to the frame 4 also is adjustable, by bolts through the bottom of the weldment 132, within a range of O degrees to 45 degrees. These adjustments facilitate transfer of the bag opening over the snout.
  • FIGS 13 - 18 illustrate a second embodiment of a web separator assembly, which may be employed in lieu of spring metal spreader 24.
  • the web separator assembly includes an elongate, substantially rigid guide bar 216 and an elongate guide flexure 218.
  • the upper end of flexure 218 is mounted to the upper end of the guide bar by a support plate 220. Because it is pre-stressed, flexure 218 tends to occupy a normal position against guide bar 216, but can be flexed to a web expanding position relatively remote from the guide bar as is later explained.
  • the web separating assembly further includes a guide block 222 fastened to the guide bar at a horizontal extension 224 of the bar.
  • Guide block 222 is supported slidably on an elongate guide shaft 226.
  • Upper and lower shaft support brackets 228 and 230 secure guide shaft 226 to a panel 232.
  • the panel in turn is fixedly mounted to frame 4, through structure not illustrated.
  • a piston rod 238 which reciprocates in a web separating cylinder 240 mounted to panel 232 by a cylinder bracket 242.
  • Operating cylinder 240 causes guide bar 216 and guide flexure 218 to reciprocate between a raised or upstream position when piston rod 238 is retracted, and a lower, downstream position when the rod is fully extended.
  • Guide block 222 is near lower bracket 230 when the piston is fully extended.
  • extension 224 of guide bar 216 is secured in guide block 222 by a pair of threaded members, one of which is shown at 244.
  • a pair of pads 246 and 248 similarly are secured on opposite sides of the guide bar extension to provide added stiffness and protect against wear.
  • Guide shaft 226 is contained in a bore 250 through the guide block with a bearing 252 to facilitate the sliding of the block on the shaft.
  • the guide block has a f orwardly extended finger 254 to which clevis 236 is attached.
  • Guide bar 216 and flexure 218 - and most of the structure which supports them - are on opposite sides of panel 232, thus to position the bar and flexure in the path of the web, while preventing guide block 222, shaft 226 or web separating cylinder 240 from interfering with the web. Consequently, an elongate slot 256 is provided in panel 232 to permit
  • the web spreading assembly further includes a forwardly extended flexure cylinder 258 fixed with respect to frame 4.
  • An elongate pin 260 reciprocates horizontally in the flexure cylinder. With bar 216 and flexure 218 in the downstream position, flexure cylinder 258 is operated to extend pin 260 through an aperture 262 in the guide bar to contact flexure 218. As it continues to extend, pin 260 bends flexure 218 outwardly away from its normal position to a web expanding position, in which the lower end of the flexure is remote from the guide bar. Since the flexure and guide bar are positioned between the folded opposed sides of the web, such flexure movement forces these sides apart from one another. Flexure 218 is biased toward its normal position and immediately returns to the normal position when pin 260 is retracted.
  • pin 260 during its extension, punctures the side of the web located between it and guide bar 216. This does not affect the bagging of produce, in that openings in the bag are desirable to prevent undue accumulation of moisture. Further, as the flexure cylinder and pin are located near the web edge that forms the top of each finished bag, the puncture caused by the pin can readily be avoided by sealing the finished bag at a point inside of it. Alternatively, an electromagnet might be employed to pull flexure 218 away from bar 216 when actuated.
  • a pair of clamping plates 264 and 266 (Figure 16) similar to clamping plates 70 and 72, except that neither of plates 264 and 266 is spring biased. Also provided are gripping feet 268 and 270, one associated with each of the clamping plates. Shown in Figure 15 is gripping foot 270, which is reciprocated horizontally by a cylinder 272.
  • FIGS. 11A to 11F show the sequential operation of packaging apparatus 2. Attention also is directed to the timing diagram of Figure 13 wherein the sequence of various machine operations is shown in a typical cycle time and cam dwell.
  • Figure 11A shows sealing/severing assembly 8, spreader/clamping assembly 10 and pedestal 12.
  • the clamping assembly is shown with clamping plate 72 retracted from clamping plate 70 and with presser feet 74 and 76 retracted from the clamping plates.
  • Anvil 56 is retracted from a hot knife 140, while film clamp 62 is retracted by its air cylinder 142 from a stationary plate 144.
  • the web spreader portion of assembly 10 is raised, with the arms of spring metal member 24 relaxed.
  • Drive clutches 28 are engaged to permit draw rollers 20 to advance the film.
  • Air cylinder 80 then is enabled to bring clamping plate 72 near clamping plate 70 before the film 16 reaches the clamping plates.
  • air cylinder 29 is enabled to lower spring metal member 24 to expand the open end of the film 16 and guide the sides of the film web over the closed clamping plates 70 and 72. This condition, shown in Figure 11B, continues until approximately 55° of dwell when spring metal member 24 is raised.
  • air cylinders 82 and 84 are next enabled to bring presser feet 74 and 76 against associated clamping plates 70 and 72 and thereby clamp the sides of the previously advanced and separated film 16.
  • Air cylinder 142 is thereafter enabled to clamp the upper side of the film web between clamp member 62 and plate 144.
  • air cylinder 5% is enabled to bring anvil 56 and film 16 against hot knife 140 to seal and sever film 16.
  • the bottom side seal of the next following bag is formed during the first sealing and severing operation and a completed bag is formed after each sealing and severing operation. The sealing operation continues until approximately 80° of dwell, after which anvil 56 is retracted.
  • pedestal 12 is rotated to bring the clamped, open mouth of the bag against snout portions 86 and 88 of chute 120.
  • air cylinder 122 is enabled and upper snout portion 86 is opened to clamp the bag to the snout.
  • sealer 54 Prior thereto sealer 54 is positioned to receive and support the bag in a central opening thereof while the bag's open end is clamped and sealed with an appropriate tape. Sealer 54 operates asynchronously relative to the bag preparing and filling asemblies, i.e., upon detecting the presence of a filled bag irrespective of when that occurs. After a filled bag is dropped, a new bag is inserted over snout portions 86 and 88 and clamped at 90° of dwell and a new cycle begins. Thus, for each machine cycle of packaging apparatus 2, the film 16 is advanced and a new bag is formed, while a previously formed bag is filled and sealed.
  • FIGs 16 - 18 illustrate the operation of the alternative web separating assembly.
  • clamping plate 266 is retracted, and each of gripping feet 268 and 270 is retracted from its associated clamping plate. While shown in Figure 16 to aid the description, the clamping plates and gripping feet at this stage actually are pivoted away from the web path, with swing arm 66 in its funnel position.
  • Flexure cylinder 258, with pin 260 retracted, is immediately above or upstream of the clamping plates.
  • a clamping member 274 operated by a pneumatic cylinder 276 and associated with a stationary member 278, and a hot knife 280 and associated movable anvil 282. These are substantially identical in structure and function to their corresponding parts illustrated in Figure 11, in that clamping member 274 fixes the interface for the cutting and sealing operation.
  • timing cycle associated with the alternative web separating assembly is essentially similar to that of the first embodiment
  • Figure 16 can be considered equivalent to Figure 11A, in that clamping plate 266, feet 268 and 270, anvil 282 and member 274 all are retracted. Guide bar 216 and flexure 218 are in the upstream position, with the lower end of bar 218 near the bottom or lead edges of the folded sides of web 16. These sides are joined together, having been sealed as previously explained.
  • bar 216 and flexure 218 begin their descent, preferably at a speed substantially identical to that of the web, so that guide bar 216 contacts the sealed lead edges of the web's sides and pushes against them as it descends, hence to assist rollers 20 in moving the web.
  • One advantage to using the guide bar to move the web is improved control over the width of each bag, as determined by the amount of web advance between successive cutting and sealing operations.
  • Another is better control over the configuration of the web edges just prior to their engagement by the clamping plates and gripping feet, for a more consistent and reliable handling of the bags.
  • care is taken to ensure that the guide bar descent speed does not exceed the web speed by an amount sufficient to cause undue stretching of the web.
  • SUBSTITUTE SHEET pivot can occur, for example, at 55° dwell, after a cylinder 284 has moved clamping plate 266 proximate clamping plate 264.
  • Clamping plate 266 then is retracted from clamping plate 264 to stretch the open end of the bag into the configuration shown in Figure 18, for subsequent filling of the bag.
  • the retraction speed of plate 266 is controlled to minimize the chances of damage to the bag, particularly at the newly formed seal along the trailing edge. Another key consideration is to minimize the time necessary for stretching open the bag. Consequently, plate 266 is controlled with both factors - speed and seal preservation - in mind.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

L'appareil ci-décrit permet de positionner une feuille pliée par rapport à une unité (10) servant à étaler et à fixer la feuille et de maintenir une extrémité ouverte de la feuille pendant que la feuille est scellée afin de former un sac. Un pied (12) entraîné par une came aligne ensuite le sac ainsi préparé sur une unité de remplissage (14), où le sac est saisi et rempli de produits ou autres avant d'être scellé. L'unité servant à étaler la feuille comprend une barre de guidage allongée (226) qui s'engage dans le bord de guidage de la feuille scellée afin de contribuer à déplacer la feuille et à régler la largeur du sac. Une lame allongée de flexion (218), fixée à l'une de ses extrémités à la barre de guidage, est courbée élastiquement en retrait par rapport à la barre pour étaler la feuille.
EP19860903890 1986-05-23 1986-05-23 Appareil de manipulation de feuilles pour machine de remplissage a deplacement positif Withdrawn EP0267904A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1986/001132 WO1987007238A1 (fr) 1986-05-23 1986-05-23 Appareil de manipulation de feuilles pour machine de remplissage a deplacement positif

Publications (1)

Publication Number Publication Date
EP0267904A1 true EP0267904A1 (fr) 1988-05-25

Family

ID=22195517

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860903890 Withdrawn EP0267904A1 (fr) 1986-05-23 1986-05-23 Appareil de manipulation de feuilles pour machine de remplissage a deplacement positif

Country Status (2)

Country Link
EP (1) EP0267904A1 (fr)
WO (1) WO1987007238A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3295289A (en) * 1964-02-11 1967-01-03 Eastman Kodak Co Pouch forming and filling method and apparatus
US3397505A (en) * 1965-03-15 1968-08-20 Eastman Kodak Co Packaging machine
US3501887A (en) * 1967-02-17 1970-03-24 Phillips Petroleum Co Continuous belt feed for film packaging machine
US3462913A (en) * 1967-06-05 1969-08-26 John S Bodolay Combination multiple bag making and compartment bag making machine
NL7614290A (nl) * 1976-12-22 1978-06-26 Lockwood International Bv Inrichting voor het openspreiden van een dubbele band verpakkingsmateriaal.
US4514962A (en) * 1982-12-16 1985-05-07 Minigrip, Inc. Method and apparatus for filling reclosable bags
US4590741A (en) * 1984-04-09 1986-05-27 General Dynamics Pomona Division Skin packaging procedure using laminated anti-static material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8707238A1 *

Also Published As

Publication number Publication date
WO1987007238A1 (fr) 1987-12-03

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