EP1270415A1 - Machine pour la fabrication d'emballages du type coussin - Google Patents

Machine pour la fabrication d'emballages du type coussin Download PDF

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Publication number
EP1270415A1
EP1270415A1 EP02015723A EP02015723A EP1270415A1 EP 1270415 A1 EP1270415 A1 EP 1270415A1 EP 02015723 A EP02015723 A EP 02015723A EP 02015723 A EP02015723 A EP 02015723A EP 1270415 A1 EP1270415 A1 EP 1270415A1
Authority
EP
European Patent Office
Prior art keywords
article
packaging bag
sheet material
continuous sheet
tube
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.)
Granted
Application number
EP02015723A
Other languages
German (de)
English (en)
Other versions
EP1270415B1 (fr
Inventor
Takayuki Fujiwara
Kunihiro Sumida
Kazuo Okutsu
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
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
Priority claimed from JP21470296A external-priority patent/JP3713108B2/ja
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to EP03018960A priority Critical patent/EP1364876B1/fr
Publication of EP1270415A1 publication Critical patent/EP1270415A1/fr
Application granted granted Critical
Publication of EP1270415B1 publication Critical patent/EP1270415B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • 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
    • B65B9/06—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it
    • B65B9/073—Enclosing successive articles, or quantities of material, in a longitudinally-folded web, or in a web folded into a tube about the articles or quantities of material placed upon it the web having intermittent motion
    • 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
    • B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
    • B65B35/10—Feeding, e.g. conveying, single articles
    • B65B35/22—Feeding, e.g. conveying, single articles by roller-ways

Definitions

  • a pillow type packaging apparatus operates to wrap an article into a bag or packaging by use of continuous sheet material being flat, to obtain a package.
  • the outer form of the article is also utilized by way of an auxiliary guide member for the tube forming to keep a tubular shape of the packaging bag. If a shape of a tube forming guide unit as viewed in cross section is different from that of the article as viewed in cross section, it is extremely difficult to obtain the package with agreeable appearance. Also it is extremely difficult without the article to form the packaging bag being empty in a desired size.
  • supply of the article is stopped for example for changing the size and shape of the packaging bag, it is required to supply a dummy article to stabilize the tube forming operation.
  • JP-Y 38-7673 and JP-Y 55-23922 disclose a use of an inner guide frame, which is disposed inside the tube forming guide unit, for guiding the continuous sheet material inside its tubular portion.
  • This idea has a shortcoming in that a path length of the continuous sheet material in a width direction between a position before the tube forming guide unit and a position after it is not regular.
  • the term "path length" herein is used to represent a length of a locus of the continuous sheet material being sent through the tube forming guide unit.
  • tension of the continuous sheet material in the width direction is irregular.
  • Possibility of occurrence of zigzag movement of the continuous sheet material is high.
  • the continuous sheet material typically with low resiliency, does not run smoothly even by use of the roller or arcuate member being suggested. Wrinkles may occur with higher likeliness. If the tube forming guide unit has a curved portion, it is difficult to maintain similarity of a shape of the guide unit after a change in the size to its shape before the change.
  • a tube forming distance is determined long sufficiently in the apparatus for the tube forming of the continuous sheet material with low resiliency. This is because the difference in the path length of the continuous sheet material in the width direction between upstream and downstream positions from the tube forming guide unit should be absorbed, even though the continuous sheet material has small tendency of extension and compression.
  • JP-B 58-44525 discloses a mechanical construction for positioning each article by use of a pusher.
  • JP-B 7-67922 (corresponding to JP-A 4-44912) discloses an electric construction according to which a sensor is disposed directly before the tube forming guide unit, and a supply conveyor is started in response to a signal from the sensor.
  • JP-B 7-108689 discloses the gusset forming in which the bottom sealer is used by way of a tube forming guide unit. The bottom sealer is moved, for example according to a technique of the box motion.
  • a conveyor belt unit consists of upstream and downstream conveyor sections, in which a common single belt is connected in a roll form. The belt roll is horizontally moved to change an interval between upstream and downstream conveyor sections. An interval between the conveyor sections is changed greater for allowing heaters above and below a conveying path to operate for the center sealing, and changed as zero (0) in a closed state with the heaters retracted vertically from the conveying path.
  • JP-Y 38-7673 and JP-Y 55-23922 disclose the inner guide frame, which, however, is changeable in the size only in the width direction of the packaging bag. No suggestion exists for an inner guide frame changeable in the size in a vertical direction of the packaging bag.
  • the tube forming state should be adjusted while the continuous sheet material is manually supplied by an operator.
  • the pillow type packaging apparatus known so far in the art is comparatively unadvantageous in comparison with other types of packaging apparatus, because of low suitability to changing the size of the continuous sheet material.
  • the tube forming guide unit should have a shape with a constant path length between upstream and downstream positions from the tube forming guide unit in any position of the continuous sheet material in its width direction, to prevent looseness in forming the continuous sheet material into the tubular shape.
  • JP-B 60-55364 discloses an example of a shape of the tube forming guide unit.
  • the tube forming guide unit has a continuous surface. If the size of the packaging bag is required to change, the tube forming guide unit must be entirely exchanged or deformed.
  • the inner guide frame is only inserted in an opening of the tube forming guide unit.
  • looseness in the packaging bag in association with a gap between the tube forming guide unit and the inner guide frame. It is likely that tightness in the bottom sealed portion becomes low due to wrinkles caused in the gusset forming. It is likely that there occurs failure in the gusset forming such as deviations between a folded line of gussets and any of four lateral edges of the packaging bag.
  • the above-mentioned apparatus with the tube forming distance being great has an inevitably great size. If an accident occurs in the tube forming guide unit, it is extremely difficult to pass the continuous sheet material in the packaging apparatus initially for next operation. It is also necessary to remove a considerable number of inserted test articles from the line, and insert dummy articles to stabilize the forming of the packaging bag before safely starting the packaging operation.
  • JP-B 58-44525 (corresponding to JP-A 54-138792) and JP-B 7-67922 (corresponding to JP-A 4-44912) suggest the positioning method of an interval between articles with prevention of collision between the article and the bottom sealer.
  • the interval between the articles changes depending upon a height of the article.
  • the packaging apparatus suitable for plural sizes has a difficulty in positioning the article at a suitable interval again upon restarting of the apparatus after the operator's adjustment.
  • JP-B 7-108689 (corresponding to JP-A 2-282004) has a shortcoming in that the packaging bag is the more difficult to produce according to a height of the packaging bag.
  • the continuous sheet material more than required is used.
  • a relevant mechanism must have a complicated structure due to synchronization between conveyance of the article and movement of the bottom sealer.
  • a gusseted portion should be formed by bending four faces of the continuous sheet material of the tubular shape with bender members swingable about their respective axes.
  • the respective axes of the bender members are not positioned along sides of an end face of the article according to any of the known constructions, and do not form a gusseted portion with agreeable appearance. Also known bender members are likely to damage the continuous sheet material.
  • the continuous sheet material must be used to an extent more than is enough. It is difficult to stabilize an packaging operation. To reduce this surplus amount of the continuous sheet material, there is a suggestion in that a suction nozzle is inserted into the tube forming guide unit to discharge the remaining air from the article. However it is difficult to adapt this suggestion to packaging the article not quadrangular as viewed in cross section.
  • JP-B 7-64326 (corresponding to JP-A 2-282005) discloses a use of a conveyor belt for conveying the article and an extensible structure for the conveyor belt.
  • this idea cannot be applied to a use of an accumulate conveyor. It is general to use a method of preventing interference with the bottom sealer by shifting the conveyor.
  • the conveyor of the shiftable type requires spaces in forward and reverse directions for shifting stroke. It is impossible at the same time to effect reception and delivery of the articles, so that cycle time becomes excessively long, and inconsistent to heightening efficiency,
  • the closing operation is influenced by the article, the remaining air or the like. It is difficult to close the bag mouth of the packaging bag in the same state as before opening the bag mouth without difference.
  • a process is required for folding the gusseted portion inwards in closing the packaging bag.
  • JP-B 7-41895 discloses a use of force of suction for retaining the packaging bag.
  • JP-B 52-29672 discloses an operation of squeezing the bag mouth with a chuck.
  • the former has a shortcoming due to small force of retention with the suction.
  • the latter must have a complicated mechanical structure for the chuck.
  • Another shortcoming is a relatively great number of packaging steps because of insertion of the chuck into the packaging bag.
  • JP-B 61-44725 (corresponding to JP-A 55-134003) discloses a method in which the chuck squeezes the bag mouth, and rotated and moved toward the article for creating a folded end. The rotation and movement of the chuck are synchronized by engagement of a rack and a pinion.
  • the chuck of the plate shape If the chuck of the plate shape is used for folding the bag mouth, the chuck must be moved along a path of a sine curve when the chuck is rotated at a constant speed. It is impossible to keep tension applied to the continuous sheet material during the folding operation of the bag mouth.
  • the bag mouth cannot be folded tightly typically when the article is fragile with small rigidity, or has an edge liable to be damaged.
  • JP-A 2-19223 suggests a construction in which a rotational shaft of the chuck is so eccentric that the rotational shaft lies on a folding line of the continuous sheet material, and the rotational shaft is moved each time that the chuck makes half a rotation.
  • a rotational shaft of the chuck is so eccentric that the rotational shaft lies on a folding line of the continuous sheet material, and the rotational shaft is moved each time that the chuck makes half a rotation.
  • JP-B 55-13976 discloses a method of attaching a tape to a package.
  • a tape attacher roller is pressed to the article by moving along a line lying on an end face of the article, so as to attach the tape in the L-shape for enclosing the bag mouth firmly.
  • This is an acceptable method if the article in the package is sufficiently rigid, for example a corrugated fiberboard box.
  • edges of the article are likely to be damaged by pressure of the tape attacher roller if the article in the package is fragile, and with the continuous sheet material being fragile.
  • a front end of the tape is captured by the chuck.
  • the tape is supplied by a regular length, is cut and then is attached to the article. It is necessary to retain a rear end of the tape by means of the suction on the side of a roll of the unused tape.
  • a target portion to be captured by the chuck should be previously free.
  • the tape with small rigidity in a general manner however, has instability in the position of the front end after the cutting operation. Failure is likely to occur in capturing of the chuck.
  • JP-A 3-176344 suggests a method of retaining the front end of the tape by use of the suction. However it is extremely difficult to determine the sucking force greater than adhesive force of the tape. The tape cannot be run stably. In view of the foregoing problems, it is an objective of the present invention to improve a pillow type packaging apparatus such that gusset portions and a bag mouth can be bent or folded with agreeable appearance.
  • a pillow type packaging apparatus for packaging an article in a packaging bag, including a conveyor mechanism for conveying flexible continuous sheet material, a guide unit for guiding said continuous sheet material being conveyed, to form said continuous sheet material into a tube in which a pair of longitudinal edges of said continuous sheet material are confronted with each other, a center sealer for thermally sealing up said longitudinal edges, an inserter for inserting said article into said tube through said guide unit while a front end of said article is directed downstream, wherein said tube is formed into said packaging bag by cutting and sealing, a first and a second bender plate for folding first and second lateral portions of said tube inwards, wherein said first and second bender plate respectively have a triangular shape, are disposed downstream from said guide unit and opposite to each other with respect to said tube, and swingable about respective axes thereof, and a third and a fourth bender plate for folding third and fourth lateral portions of said tube toward one another, wherein said third and fourth bender plate respectively are disposed downstream from
  • the continuous sheet material can be prevented from being damaged.
  • said inserter is adapted to position a rear end face of said article at said axes, wherein said rear end face is opposite to said front end of said article.
  • said axes are disposed in a downstream end of said guide unit.
  • a pillow type packaging apparatus for packaging an article in a packaging bag, including a conveyor mechanism for conveying flexible continuous sheet material, a guide unit for guiding said continuous sheet material being conveyed, to form said continuous sheet material into a tube in which a pair of longitudinal edges of said continuous sheet material are confronted with each other, a center sealer for thermally sealing up said longitudinal edges, an inserter for inserting said article into said tube through said guide unit while a front end of said article is directed downstream, a cutter for cutting said tube containing said article to obtain said packaging bag, wherein said packaging bag has a mouth formed by cutting of said cutter and an advancing bottom disposed opposite to said mouth, a bottom sealer for sealing said advancing bottom, wherein said bottom sealer is disposed upstream from said cutter, a folder chuck unit for squeezing said mouth, wherein said folder chuck unit is disposed downstream from said cutter and rotatable, and a rotating mechanism for
  • a pillow type packaging apparatus for packaging an article in a packaging bag, including a first conveyor mechanism for conveying flexible continuous sheet material, a guide unit for guiding said continuous sheet material being conveyed, to form said continuous sheet material into a tube in which a pair of longitudinal edges of said continuous sheet material are confronted with each other, a center sealer for thermally sealing up said longitudinal edges, an inserter for inserting said article into said tube through said guide unit while a front end of said article is directed downstream, wherein said tube is formed into said packaging bag by cutting and sealing, a second conveyor mechanism, disposed downstream from said first conveyor mechanism, for conveying said packaging bag containing said article to a station for closing a mouth of said packaging bag, a third conveyor mechanism, disposed downstream from said second conveyor mechanism, for conveying said packaging bag containing said article to an exit path, a slider for sliding said second conveyor mechanism between upstream and downstream positions with reference to
  • reception and delivery of the articles are effected at the same time, so that cycle time can be shortened and consistent to heightening efficiency.
  • edges of the articles are safe and not damaged if the article in the package is fragile by a tape attacher for attaching an adhesive tape to a packaging bag in which an article is contained, wherein said adhesive tape is secured to a mouth of said packaging bag, on an end portion of said packaging bag and on an adjacent face of said packaging bag adjacent to said end portion, comprising a push roller, movable along a line on said end portion of said packaging bag, for pressing said adhesive tape against said end portion, and a tape retainer for retaining a portion of said adhesive tape on said adjacent face of said packaging bag and for preventing said push roller from pushing an edge between said end portion of said packaging bag and said adjacent face thereof to protect said edge from being damaged, wherein said tape retainer is protruded from said end portion partially.
  • the target portion of the tape can be captured reliably even if the tape has small rigidity and there is no instability in the position of the front end after the cutting operation by a tape attacher for attaching an adhesive tape to a packaging bag in which an article is contained, comprising a tape roll from which said adhesive tape is unwound, a feed chuck unit for capturing a distal end of said adhesive tape when said feed chuck unit is located in a first position, wherein said feed chuck unit is movable to a second position, an end chuck unit for capturing a portion of said adhesive tape near to said distal end when said feed chuck unit is located in said second position, wherein said feed chuck unit is released from capturing said distal end and moved back to said first position, when said end chuck unit captures said portion, and a tape cutter, disposed close to said first position, for cutting said adhesive tape after said end chuck unit captures said portion.
  • a package is depicted, in which an article 1 is packaged.
  • the article 1 is for example a roll of photosensitive material, such as photographic paper.
  • a gusseted bag or packaging bag 3 is used to package the article 1, and is produced from continuous sheet material 2 or flat continuous material. See Fig. 2.
  • the continuous sheet material 2 consists of, for example, continuous kraft paper with lamination of polyethylene colored black.
  • the packaging bag 3 has a rear closing portion or bag mouth 3a, which is folded for three times, and tightly closed with an adhesive tape 5.
  • the packaging bag 3 has an advancing bottom 3b, which is tightly closed by thermal welding by a bottom sealer 6 as front end closing unit (See Fig. 2).
  • bottom sealer 6 is commonly used in the field of packaging techniques. In any part of the present description, the "bottom” 3b and the “bottom sealer” 6 relates to an advanding face of the packaging bag 3, and not to a lower face of the packaging bag.
  • a packaging apparatus 10 is constituted by a material supplier 11, a tube former 12, an article supplier 13 as inserter, a bender/sealer 14 and a folder/attacher 15.
  • the bender/sealer 14 and the folder/attacher 15 constitute a rear end closing unit.
  • the material supplier 11 is set a packaging material roll 2a in which the continuous sheet material 2 is wound.
  • the material supplier 11 supplies the tube former 12 with the continuous sheet material 2.
  • the tube former 12 forms the continuous sheet material 2 into a tube having a quadrangular shape as viewed in cross section, and welds together lateral edges of the continuous sheet material 2 by heat sealing along the center of the tube.
  • the article supplier 13 inserts the article 1 at a regular interval into a downstream tubular portion of the continuous sheet material 2 past the tube former 12.
  • the bender/sealer 14 bends lateral faces of the quadrangular tubular shape of the continuous sheet material 2 in inward directions, and discharges air from between consecutively provided two articles. Then the bender/sealer 14 thermally welds the continuous sheet material 2 in its width direction, and cuts the continuous sheet material 2 by use of a cutter.
  • the folder/attacher 15 folds the bag mouth 3a of the packaging bag 3 for three times, and attaches the adhesive tape 5 to it for keeping the bag mouth 3a folded. Note that the adhesive tape 5 is supplied from a tape roll 5a in which the adhesive tape 5 is wound in a roll form.
  • an operation of supply of the article and tube forming is effected in an intermittent manner. While the tube forming is stopped, the bender/sealer 14 is operated. After cutting of the continuous sheet material 2 in the width direction with the cutter, the article being packaged is conveyed to the folder/attacher 15. At the same time as this, the tube forming is started. The above process is repeated.
  • the continuous sheet material 2 from the material supplier 11 is passed through an edge position controller 20 (referred to as E.P.C.) for rectifying an edge position of the continuous sheet material 2, and then moved under an article conveyor 22 as inserter. Then the continuous sheet material 2 is introduced to a guide unit 24 in the tube former 12 adapted to forming the continuous sheet material 2 into the packaging bag 3. See Fig. 4.
  • the continuous sheet material 2 is shaped by the guide unit 24 into a tubular form having a quadrangular shape as viewed in cross section.
  • lateral edges 2b of the continuous sheet material 2 are moved for conveyance by the virtue of feed rollers 26 and a suction belt 28.
  • the feed rollers 26 and the suction belt 28 cooperate as a conveyor mechanism.
  • the feed rollers 26 are disposed in a position immediately past a center sealer 25.
  • the suction belt 28 is disposed as a base surface of a conveying path for the article 1.
  • force applied in the downstream direction to the continuous sheet material 2 is determined by combination of the feed rollers 26 and the suction belt 28.
  • a component force applied by the suction belt 28 to the continuous sheet material 2 is determined equal to or greater than resistant force applied to the continuous sheet material 2 by the guide unit 24 against the conveyance of the continuous sheet material 2.
  • the guide unit 24 is constituted by an outer guide frame 31 and an inner guide frame 32.
  • the outer guide frame 31 regulates a surface to become the outside of the packaging bag 3.
  • the inner guide frame 32 regulates a surface to become the inside of the packaging bag 3.
  • the outer guide frame 31 includes four corner portions 31a, 31b, 31c and 31d separate from one another. Each of the corner portions 31a-31d forms a lateral edge of the packaging bag 3.
  • the position of each of the corner portions 31a-31d is changeable by use of an AC servo motor, which is connected to it by a ball screw.
  • the inner guide frame 32 includes four rails 32a, 32b, 32c and 32d as a first frame portion.
  • Each of the rails 32a, 32b, 32c and 32d has an L-shape as viewed in cross section, and supports an inside of one respective lateral edge of the packaging bag 3.
  • the rail 32a is kept with a predetermined clearance from the corner portion 31a, and disposed in a shiftable manner together with the corner portion 31a.
  • the position of the rail 32a is changeable by use of an AC servo motor, which is connected to it by a ball screw.
  • the rails 32b, 32c and 32d are respectively associated with the corner portions 31b, 31c and 31d.
  • the feed rollers 26 are released from the nipping state.
  • the center sealer 25 and the feed rollers 26 are moved upwards and retreat.
  • the continuous sheet material 2 is conveyed only by the suction belt 28.
  • the outer guide frame 31 and the inner guide frame 32 are moved in synchronism to positions associated with a new designated size.
  • An attached portion between a new continuous sheet material and the continuous sheet material 2 being older is discharged.
  • the center sealer 25 and the feed rollers 26 are set in positions for the new size, and lowered and set in the nipping state. The size is thus changed over.
  • the apparatus stands by for insertion of article having the new size.
  • front edges 35 of the corner portions 31a-31d of the outer guide frame 31 are tapered, and remain to have flatness with inner surfaces of the corner portions 31a-31d.
  • a radius of curvature R of the front edges 35 is in a preferable range of 0.2-0.3 mm, and is nearly equal to a thickness T of the continuous sheet material 2. This is effective in reducing resistance of the guide unit 24 against conveyance of the continuous sheet material 2.
  • the teflon may be replaced with other material with low coefficient of friction.
  • the outer guide frame 31 may be formed to satisfy a condition of: T ⁇ R ⁇ 5 mm.
  • the rails 32a-32d of the inner guide frame 32 are determined longer than the corner portions 31a-31d in the conveying direction of the article 1.
  • the inner guide frame 32 includes rails 33a, 33b and 33c and a rail 33d (not shown) as a second frame portion.
  • the rails 33a-33d have a thickness enlarged in an outward direction to such an extent that the rails 33a-33d have a contour substantially equal to an inside of the outer guide frame 31, namely the outside of the tube.
  • a robot arm 38 as inserter in the article supplier 13 is controlled by a controller 38a, and operated to insert the article 1 at a predetermined interval into the packaging bag 3 past the guide unit 24.
  • two articles 1 are inserted into the packaging bag 3 by the robot arm or inserter 38.
  • a shiftable feeder mechanism 40 in the bender/sealer 14 for receiving the packaging bag 3 with the article 1 contained has a moving construction of Figs. 7A-7C for the purpose of avoiding interference between the bottom sealer 6 and the benders for forming the gussets.
  • the bottom sealer 6 includes a cutter 6a, and a sealer head 6b.
  • a roller train 42 as an extensible path mechanism is connected to a downstream end of the shiftable feeder mechanism 40.
  • the roller train 42 is a train of plural rollers connected to one another.
  • the roller train 42 is inserted in an L-shaped guide tube 41.
  • the roller train 42 absorbs occurrence of a gap between the shiftable feeder mechanism 40 and a conveyor 43 as a downstream conveyor path.
  • the conveyor 43 is adapted for a succeeding process of folding the rear closing portion or bag mouth.
  • the shiftable feeder mechanism 40 includes a conveyor 40a and a slider 40b.
  • the conveyor 40a includes plural rollers which are rotated in synchronism to feed the article 1 with the packaging bag 3 wrapping the article 1.
  • the conveyor 40a may consist of a conveyor belt.
  • the slider 40b slides the conveyor 40a in downstream and upstream directions.
  • the bender/sealer 14 includes first and second bender plates 45 and third and fourth bender plates 46, all of which are located on the side of the guide unit 24 upstream from the bender/sealer 14.
  • the bender plates 45 and 46 are swingable, and correspond to respective four sides of the quadrangle of the cross section of the tube.
  • the first and second bender plates 45 have a triangular shape, and are swung to bend centers of two opposite lateral faces of the continuous sheet material 2 in an inward direction.
  • the third and fourth bender plates 46 have a T-shape, and are swung to bend top and bottom horizontal faces of the continuous sheet material 2 toward each other.
  • a folded tubular portion 47 is formed on the continuous sheet material 2 between the articles by the first and second bender plates 45.
  • Rotational axes of the first and second bender plates 45 are disposed at an end of the inner guide frame 32.
  • the third and fourth bender plates 46 are swung to cover the first and second bender plates 45 at least partially. It is preferable to dispose the rotational axes of the first and second bender plates 45 relatively closer to the guide unit 24 for the purpose of neatening the gussets.
  • top and bottom portions of the inner guide frame 32 are relatively long in the downstream direction. This is effective in eliminating distortion of the packaging bag 3 due to the thickness of the first and second bender plates 45. Note that the T-shape of the third and fourth bender plates 46 is to prevent interference with the first and second bender plates 45.
  • Fig. 11 there are arranged bag closing plates 48 and push guides 49 on the downstream side of the bender/sealer 14.
  • the bag closing plates 48 squeeze the bag mouth 3a between them in the vertical direction.
  • the push guides 49 push the folded tubular portion 47 of the bag mouth 3a in the inward direction.
  • the continuous sheet material 2 with the bag mouth 3a and the folded tubular portion 47 is welded together and closed by the bottom sealer 6, which is moved up and down by an air cylinder. Then the continuous sheet material 2 is cut by the cutter 6a located on the side of the bottom sealer 6.
  • transfer chucks 53 Beside the bag closing plates 48 are disposed transfer chucks 53, which squeeze the bag mouth 3a between the transfer chucks 53 and an upper one of the bag closing plates 48 after folding the folded tubular portion 47.
  • the transfer chucks 53 are rotatable. In Fig. 7A, the transfer chucks 53 squeeze the bag mouth 3a before the continuous sheet material 2 is cut.
  • the transfer chucks 53 are arranged in a transfer unit 55 to allow the packaging bag 3 to be conveyed to the folder/attacher 15 in a squeezed state. See Figs. 7A-7C.
  • Fig. 12 there are a pair of folder chucks 56 arranged in the folder/attacher 15 for squeezing the bag mouth 3a.
  • the folder chucks 56 while rotated, are moved toward the packaging bag 3.
  • the bag mouth 3a of the packaging bag 3 when the bag mouth 3a is positioned by the transfer chucks 53 and conveyed to the folder/attacher 15 as depicted in Fig. 7B, is squeezed by the folder chucks 56, and then released from the transfer chucks 53. See Fig. 7C.
  • an end face pressing member 57 is raised to push a rear end face 3c of the packaging bag 3.
  • a pair of air discharge guides 58 push lateral faces of the packaging bag 3 to discharge air through an open end of the bag mouth 3a.
  • the folder chucks 56 squeezing the bag mouth 3a are caused by a rotating mechanism 56a to make (1+1/4) rotations, so that the bag mouth 3a is folded for the three times.
  • a reference numeral 56b designates a central shaft about which the folder chucks 56 are rotated.
  • a hysteresis brake unit 62 is located in a position downstream from the folder chucks 56, and is connected to each of the folder chucks 56 via a rack/pinion mechanism 61.
  • the hysteresis brake unit 62 applies back tension to the folder chucks 56.
  • the folder chucks 56 are rotatable in an eccentric manner, the hysteresis brake unit 62 causes the folder chucks 56 to effect a folding operation with sufficient tightness.
  • the central shaft 56b about which the folder chucks 56 are rotatable, is also slid along a straight path or orbit 56c indicated by the phantom lines in Figs. 14A-14D.
  • a retainer 65 in Fig. 15, retains a folded portion 66 in a folded state. Then the folder chucks 56 are pulled away. A tape attacher 67 attaches the adhesive tape 5 to the packaging bag 3 over the folded portion 66 in an L-shape. In the course of pulling the folder chucks 56, the sides of the packaging bag 3 are retained by the air discharge guides 58, so as to stabilize the position of the packaging bag 3.
  • the adhesive tape 5 is unwound from the tape roll 5a by a feed chuck unit 70 and extended by a predetermined distance to a position 70a of Fig. 16A.
  • the feed chuck unit 70 is controlled by a controller 67a.
  • the leading end of the adhesive tape 5 is captured by an end chuck unit 71. See Fig. 16B.
  • the feed chuck unit 70 is released from the capture, and moved back to its home position. Again the adhesive tape 5 is captured by the feed chuck unit 70.
  • a tape retainer 73 which is movable toward and away from the packaging bag 3, and is disposed in such a manner that a rear end of the tape retainer 73 is projected beyond the level of the rear end face 3c of the packaging bag 3.
  • the tape retainer 73 is moved down to the packaging bag 3.
  • a push roller 74 or ironing roller is rotated while moved down along the rear end face 3c, to push the leading end of the adhesive tape 5 to the rear end face 3c for tight attachment, so that the folded portion 66 is enclosed by the adhesive tape 5. Since the end of the tape retainer 73 is protruded beyond the level of the rear end face 3c, the tape retainer 73 protects corners 3d of the packaging bag 3, and prevents the push roller 74 from breaking the corners 3d with pressure.
  • a tape cutter 75 is lowered to cut the adhesive tape 5 to which tension is being applied, as illustrated in Fig. 16C.
  • a portion squeezed by the feed chuck unit 70 becomes a next formed leading end of the adhesive tape 5.
  • a push roller 76 behind the tape retainer 73 starts rotating and moving away from the tape retainer 73, to attach the adhesive tape 5 to the top of the packaging bag 3, as depicted in Fig. 15.
  • the folder/attacher 15 is separate from the bender/sealer 14 for the purpose of increasing the cycle time.
  • the bag mouth 3a is squeezed by the transfer chucks 53 before cutting the continuous sheet material 2, and squeezed by the folder chucks 56 after transfer to the folder/attacher 15 with the transfer chucks 53.
  • the bag mouth 3a may be squeezed by the folder chucks 56 before cutting the continuous sheet material 2.
  • the present invention in an apparatus of JP-B 7-41895 (corresponding to JP-A 5-330518), where a plurality of bags or packagings, having one closed end and one open end are prepared and stacked, are supplied. Furthermore, the present invention can be used for a flat bag or packaging without the gussets of the above embodiment.
  • the first and second bender plates 45 when open to retreat from the continuous sheet material, are directed in the upstream direction.
  • the first and second bender plates 45 when open to retreat from the continuous sheet material, are directed in the downstream direction. Either of those constructions can be chosen for preference in preparing the packaging apparatus.
  • the first and second bender plates 45 in Fig. 8A should be combined with the third and fourth bender plates 46 having rotational axes lying on a plane near to a plane where the rotational axes of the first and second bender plates 45 lie.
  • the first and second bender plates 45 in Fig. 10 should be combined with the third and fourth bender plates 46 having axes lying on a plane disposed downstream from a plane where the axes of the first and second bender plates 45 lie.
  • first and second bender plates 45 in either of Figs. 8A and 10 are associated with a slider mechanism (not shown) for moving the first and second bender plates 45 straight to retreat from the continuous sheet material after forming the gussets.
  • first and second bender plates 45 in either of Figs. 8A and 10 may be associated with a slider mechanism for moving the first and second bender plates 45 straight back and forth to and from the continuous sheet material. It is possible to eliminate the swinging structure of the first and second bender plates 45. This applies to the third and fourth bender plates 46 similarly.
  • the inserter 38 inserts two articles 1 into the quadrangular tube to become two packaging bags 3.
  • the quadrangular tube containing the two articles 1 is conveyed by the feed rollers 26 and the suction belt 28 to the shiftable feeder mechanism 40 intermittently by a length of each single article, prior to the cutting and sealing operation.
  • the inserter 38 may operate to insert three articles, or a greater number of articles, into one longer quadrangular tube to become three or more packaging bags 3.
  • the cutting and sealing operation may occur three or more times to follow each one operation of the inserter 38 for the insertion.
  • the inserter 38 may operate to insert two serially supplied articles 1 into the quadrangular tube to become one relatively long packaging bag.
  • This one packaging bag may contain two articles 1 which directly contact each other in their longitudinal direction in it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
EP02015723A 1996-08-14 1997-08-13 Machine pour la fabrication d'emballages du type coussin Expired - Lifetime EP1270415B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03018960A EP1364876B1 (fr) 1996-08-14 1997-08-13 Dispositif d'application d'une bande adhésive

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP21470296 1996-08-14
JP21470296A JP3713108B2 (ja) 1996-08-14 1996-08-14 ピロータイプ包装装置
EP97113962A EP0836992B1 (fr) 1996-08-14 1997-08-13 Machine pour la fabrication d'emballages du type coussin

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP97113962A Division EP0836992B1 (fr) 1996-08-14 1997-08-13 Machine pour la fabrication d'emballages du type coussin
EP97113962A Division-Into EP0836992B1 (fr) 1996-08-14 1997-08-13 Machine pour la fabrication d'emballages du type coussin

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP03018960A Division EP1364876B1 (fr) 1996-08-14 1997-08-13 Dispositif d'application d'une bande adhésive

Publications (2)

Publication Number Publication Date
EP1270415A1 true EP1270415A1 (fr) 2003-01-02
EP1270415B1 EP1270415B1 (fr) 2005-06-15

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Application Number Title Priority Date Filing Date
EP02015723A Expired - Lifetime EP1270415B1 (fr) 1996-08-14 1997-08-13 Machine pour la fabrication d'emballages du type coussin

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Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110203432A (zh) * 2019-04-19 2019-09-06 南阳普诺瓦自动化设备有限公司 一种艾条自动化包装设备
CN110466202A (zh) * 2019-09-23 2019-11-19 江阴市汇通印刷包装机械有限公司 一种包装袋八边封翻边装置
CN115432244A (zh) * 2021-06-03 2022-12-06 哈尔滨博实自动化股份有限公司 卧式多工位二次包装机

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GB865639A (en) * 1958-04-29 1961-04-19 R W Barraclough Ltd Improvements in or relating to apparatus for sealing packages
FR1477482A (fr) * 1965-12-29 1967-04-21 Tabak & Ind Masch Tunnel de formage pour envelopper dans un tube souple d'emballage des petites marchandises de préférence de dimensions et de formes différentes
US3328938A (en) * 1961-09-29 1967-07-04 Clifford R Mack Apparatus for packaging articles in a tube
JPS493937A (fr) 1972-04-24 1974-01-14
US3859062A (en) 1972-02-07 1975-01-07 Matsushita Electric Ind Co Ltd Automatic packing apparatus
GB1472609A (en) * 1975-09-17 1977-05-04 Drg Packaging Ltd Apparatus for closing sacks
JPS5229672B2 (fr) 1972-07-27 1977-08-03
JPS54138792A (en) 1978-04-17 1979-10-27 Fuji Machine Mfg Machine for automatic shaping* filling and wrapping with film
JPS5523922Y2 (fr) 1976-07-31 1980-06-07
JPS55134003A (en) 1979-04-02 1980-10-18 Teijin Seiki Co Ltd Device for closing opening portion of bag covered on case
JPS5864908A (ja) 1981-10-07 1983-04-18 のむら産業株式会社 自動製袋機のフイルムフオ−マ−
US4761973A (en) 1987-05-08 1988-08-09 Richard Gangi Warp knitting/crochet warp knitting machine
JPS63272607A (ja) 1987-04-28 1988-11-10 カバンナ・エス．ピー．エー． 包装機械用の調整自在な成形ユニット
JPH0219223A (ja) 1988-06-24 1990-01-23 Toyama Sanki Kk 袋詰め製品の口折り装置
JPH02282004A (ja) 1989-04-19 1990-11-19 Kawashima Packaging Mach Ltd 横型製袋充填包装機のボックスモーション型加熱溶断封緘装置用ベルトコンベア
JPH02282005A (ja) 1989-04-19 1990-11-19 Kawashima Packaging Mach Ltd 横型製袋充填包装機のボックスモーション型加熱溶断封緘装置用ベルトコンベア
JPH03176344A (ja) 1989-11-24 1991-07-31 Chemo Sero Therapeut Res Inst テープ貼り装置
JPH0444912A (ja) 1990-05-31 1992-02-14 Fuji Mach Co Ltd 横型製袋充填包装機の被包装物供給装置
US5255495A (en) * 1992-10-30 1993-10-26 Hayssen Manufacturing Company Adjustable girth former
JPH05330518A (ja) 1992-05-27 1993-12-14 Toyo Eizai Kk 物品の袋詰め装置
WO1995018748A1 (fr) * 1994-01-07 1995-07-13 Hayssen Manufacturing Company Emballage de groupes d'articles dans un film

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB865639A (en) * 1958-04-29 1961-04-19 R W Barraclough Ltd Improvements in or relating to apparatus for sealing packages
US3328938A (en) * 1961-09-29 1967-07-04 Clifford R Mack Apparatus for packaging articles in a tube
FR1477482A (fr) * 1965-12-29 1967-04-21 Tabak & Ind Masch Tunnel de formage pour envelopper dans un tube souple d'emballage des petites marchandises de préférence de dimensions et de formes différentes
US3859062A (en) 1972-02-07 1975-01-07 Matsushita Electric Ind Co Ltd Automatic packing apparatus
JPS493937A (fr) 1972-04-24 1974-01-14
JPS5513976B2 (fr) 1972-04-24 1980-04-12
JPS5229672B2 (fr) 1972-07-27 1977-08-03
GB1472609A (en) * 1975-09-17 1977-05-04 Drg Packaging Ltd Apparatus for closing sacks
JPS5523922Y2 (fr) 1976-07-31 1980-06-07
JPS5844525B2 (ja) 1978-04-17 1983-10-04 株式会社富士機械製作所 自動フィルム成形充填包装機
JPS54138792A (en) 1978-04-17 1979-10-27 Fuji Machine Mfg Machine for automatic shaping* filling and wrapping with film
JPS6144725B2 (fr) 1979-04-02 1986-10-04 Teijin Seiki Co Ltd
JPS55134003A (en) 1979-04-02 1980-10-18 Teijin Seiki Co Ltd Device for closing opening portion of bag covered on case
JPS6055364B2 (ja) 1981-10-07 1985-12-04 のむら産業株式会社 自動製袋機のフイルムフオ−マ−
JPS5864908A (ja) 1981-10-07 1983-04-18 のむら産業株式会社 自動製袋機のフイルムフオ−マ−
JPS63272607A (ja) 1987-04-28 1988-11-10 カバンナ・エス．ピー．エー． 包装機械用の調整自在な成形ユニット
US4761973A (en) 1987-05-08 1988-08-09 Richard Gangi Warp knitting/crochet warp knitting machine
JPH0219223A (ja) 1988-06-24 1990-01-23 Toyama Sanki Kk 袋詰め製品の口折り装置
JPH0764326B2 (ja) 1989-04-19 1995-07-12 株式会社川島製作所 横型製袋充填包装機のボックスモーション型加熱溶断封緘装置用ベルトコンベア
JPH02282004A (ja) 1989-04-19 1990-11-19 Kawashima Packaging Mach Ltd 横型製袋充填包装機のボックスモーション型加熱溶断封緘装置用ベルトコンベア
JPH02282005A (ja) 1989-04-19 1990-11-19 Kawashima Packaging Mach Ltd 横型製袋充填包装機のボックスモーション型加熱溶断封緘装置用ベルトコンベア
JPH07108689B2 (ja) 1989-04-19 1995-11-22 株式会社川島製作所 横型製袋充填包装機のボックスモーション型加熱溶断封緘装置用ベルトコンベア
JPH03176344A (ja) 1989-11-24 1991-07-31 Chemo Sero Therapeut Res Inst テープ貼り装置
JPH0767922B2 (ja) 1990-05-31 1995-07-26 株式会社フジキカイ 横型製袋充填包装機の被包装物供給装置
JPH0444912A (ja) 1990-05-31 1992-02-14 Fuji Mach Co Ltd 横型製袋充填包装機の被包装物供給装置
JPH05330518A (ja) 1992-05-27 1993-12-14 Toyo Eizai Kk 物品の袋詰め装置
JPH0741895B2 (ja) 1992-05-27 1995-05-10 トーヨー衛材株式会社 物品の袋詰め装置
US5255495A (en) * 1992-10-30 1993-10-26 Hayssen Manufacturing Company Adjustable girth former
WO1995018748A1 (fr) * 1994-01-07 1995-07-13 Hayssen Manufacturing Company Emballage de groupes d'articles dans un film

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110203432A (zh) * 2019-04-19 2019-09-06 南阳普诺瓦自动化设备有限公司 一种艾条自动化包装设备
CN110203432B (zh) * 2019-04-19 2024-05-28 南阳普诺瓦自动化设备有限公司 一种艾条自动化包装设备
CN110466202A (zh) * 2019-09-23 2019-11-19 江阴市汇通印刷包装机械有限公司 一种包装袋八边封翻边装置
CN115432244A (zh) * 2021-06-03 2022-12-06 哈尔滨博实自动化股份有限公司 卧式多工位二次包装机
CN115432244B (zh) * 2021-06-03 2024-01-23 哈尔滨博实自动化股份有限公司 卧式多工位二次包装机

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