US20110036055A1 - Pusher used in packaging equipment - Google Patents

Pusher used in packaging equipment Download PDF

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Publication number
US20110036055A1
US20110036055A1 US12/920,067 US92006708A US2011036055A1 US 20110036055 A1 US20110036055 A1 US 20110036055A1 US 92006708 A US92006708 A US 92006708A US 2011036055 A1 US2011036055 A1 US 2011036055A1
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United States
Prior art keywords
envelope
pusher
plate
end wall
articles
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.)
Abandoned
Application number
US12/920,067
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English (en)
Inventor
Joji Shibagaki
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.)
Unicharm Corp
Original Assignee
Unicharm Corp
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 JP2008048441A external-priority patent/JP5238291B2/ja
Priority claimed from JP2008084685A external-priority patent/JP5238318B2/ja
Application filed by Unicharm Corp filed Critical Unicharm Corp
Assigned to UNI-CHARM CORPORATION reassignment UNI-CHARM CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SHIBAGAKI, JOJI
Publication of US20110036055A1 publication Critical patent/US20110036055A1/en
Abandoned 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
    • B65B5/00—Packaging individual articles in containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, jars
    • B65B5/06—Packaging groups of articles, the groups being treated as single articles
    • B65B5/067—Packaging groups of articles, the groups being treated as single articles in bags
    • 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
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/14—Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form
    • B65B25/145—Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form packaging folded articles
    • 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
    • B65B35/30—Arranging and feeding articles in groups
    • B65B35/40—Arranging and feeding articles in groups by reciprocating or oscillatory pushers
    • 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
    • B65B35/30—Arranging and feeding articles in groups
    • B65B35/44—Arranging and feeding articles in groups by endless belts or chains
    • 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
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/06—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers adapted to support containers or wrappers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/30—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by grippers engaging opposed walls, e.g. suction-operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
    • B65B43/50—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using rotary tables or turrets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B5/00—Packaging individual articles in containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, jars
    • B65B5/10—Filling containers or receptacles progressively or in stages by introducing successive articles, or layers of articles
    • B65B5/108—Article support means temporarily arranged in the container
    • 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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
    • B65B51/146—Closing bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B5/00—Packaging individual articles in containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, jars
    • B65B5/02—Machines characterised by incorporation of means for making the containers or receptacles
    • B65B5/022—Machines characterised by incorporation of means for making the containers or receptacles for making bags
    • 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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/02—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks
    • B65B7/06—Closing containers or receptacles deformed by, or taking-up shape, of, contents, e.g. bags, sacks by collapsing mouth portion, e.g. to form a single flap

Definitions

  • the present invention relates to pushers used in packaging equipments to push articles to be packaged into individual envelopes through each of an open end thereof and thereby to obtain packaged articles.
  • a pusher by which a plurality of articles to be packaged is into an envelope having a closed end and an open end opposite to the closed end, then to seal the open end and thereby to obtain a finished package.
  • the high-speed packaging machine described in JP 61-160002 Y (PATENT DOCUMENT 1) uses a plurality of transverse sealer and a cutter to obtain, from cylindrical plastic film, an envelope having a heat-sealed end and an open end opposite to the heat-sealed end.
  • a pusher an assembly comprising a given number of articles to be packaged is pushed in a lump into this envelope and then the open end is heat-sealed to obtain a finished package.
  • both side walls of the pusher with air suction ports, respectively.
  • air inside the envelope may be sucked through the air suction ports as the pusher moves away from the envelope after the pusher has pushed the articles to be packaged into the envelope.
  • the open end of the envelope is formed with gussets as the pusher moves away from the envelope and finally the open end is heat-sealed.
  • the inside of the envelope is apt to be in a depressurized condition as the pusher moves away from the envelope.
  • the envelope also is made of flexible material such as plastic film or paper
  • undesirable deformation of the envelope under the depressurized condition may cause the assembly of the articles to be undesirably deformed.
  • expected function of the individual articles may be deteriorated when these articles are actually used and, in addition, the appearance thereof also may be disfigured.
  • the outer shapes of these individual articles may become uneven and make it difficult to stack the articles in an orderly fashion, for example, in the shop.
  • the pusher's forehead is preferably dimensioned to have the area as large as possible so that the forehead of the pusher may push the assembly of the articles over an area as large as possible.
  • such measure is advantageous in that uniform suppress strength may be exerted on the assembly of the articles over an area as large as possible and damage of the individual articles due to use the pusher may be restricted.
  • the larger the area of the pusher' forehead is the more tightly the inner surface of the envelope comes in close contact with the pusher and, in consequence, it may become difficult for the envelope to be deformed neatly along the grooves of the pusher. As a result, it may become difficult to form instantly the envelope with neat gussets.
  • the present invention to achieve the object set forth above includes a first aspect and a second aspect.
  • the object set forth above is achieved, according to the first aspect of the present invention, by an improvement in the pusher used in packaging equipment, the pusher operating to push articles to be packaged into an envelope having a closed end and an open end opposite to the closed end, then to seal the open end concurrently with formation of gussets on both sides of the open end and thereby to obtain a finished package comprising the envelope and the articles to be packaged.
  • the pusher is adapted for to-and-fro movement in a forward direction in which the articles to be packaged are pushed into the envelope and in a rearward direction opposed to the forward direction and includes a head unit having a frontal end wall adapted to be pressed against the articles to be packaged and to move into the envelope, a rear end wall opposed to the frontal end wall and both lateral walls defined between the frontal end wall and the rear end wall and extending in parallel to each other in the forward direction; the frontal end wall is provided with an air supply port adapted to maintain a fluid-communication between inside and outside of the envelope by an intermediary of the pusher so long as the frontal end wall lies inside the envelope; and the lateral walls are respectively provided with air suction ports allowing the open end of the envelope to be formed with the gussets as the frontal end wall moves away from the inside of the envelope in the opposite direction.
  • the air supply port provided in the frontal end wall of the head unit is kept in fluid-communication with ambient air between the frontal end wall and the rear end wall, on the rear end wall or behind the rear end wall.
  • the air supply port provided in the frontal end wall of the head unit is adapted to supply an inside of the envelope with pressurized air.
  • the lateral walls are respectively formed with V-shaped grooves extending from the frontal end wall toward the rear end wall and the V-shaped grooves are formed in respective surfaces thereof with the air suction ports.
  • the object set forth above is achieved, according to the second aspect of the present invention, by an improvement in the pusher used in packaging equipment, the pusher operating to push a plurality of articles to be packaged into an envelope having a closed end and an open end opposite to the closed end, then to seal the open end concurrently with formation of gussets on both sides of the open end and thereby to obtain a finished package comprising the envelope and the articles to be packaged.
  • the improvement according to the second aspect of the present invention is characterized in that: said pusher being characterized in that: the pusher is adapted for to-and-fro movement in a forward direction in which the articles to be packaged are pushed into the envelope and in a rearward direction opposed to the forward direction and includes a head unit having a frontal end wall adapted to be pressed against the articles to be packaged and to move into the envelope, a width direction extending orthogonally to the direction of the to-and-fro movement and a thickness direction extending orthogonally to both the direction of the to-and-fro movement and the width direction; the head unit is divided in two, i.e., a first plate and a second plate face each other in the thickness direction or divided in three, i.e., a first plate, a second plate and a third plate, the first plate being interposed between the second plate and the third plate wherein both sides of the first plate in the width direction are respectively formed with V-shaped grooves extending in the direction of the to-and-fro movement and utilized
  • the second plate and the third plate are integrated with each other behind the head unit.
  • the air supply ports are adapted to supply an inside of the envelope with pressurized air.
  • the pusher according to the first aspect of the present invention has the air supply port provided in the frontal end wall of the head unit and the air suction ports provided in the both lateral walls.
  • the pusher according to the second aspect of the present invention includes the head unit comprising the first plate and the second plate overlapping each other in the height direction or comprising the first plate, the second plate and the third plate wherein the first plate interposed between the second and third plates so that only the second plate or the second plate and the third plate may move away from the envelope after the articles to be packaged have been pushed into the envelope and only the first plate may be used to form the gussets.
  • the envelope can quickly and smoothly move into the grooves to be deformed in accordance with the shape of the respective grooves. In this way, the neat gussets can be quickly obtained.
  • FIG. 1 is a perspective view of an envelope and articles to be packaged.
  • FIG. 2 is a side view of packaging equipment using a pusher.
  • FIG. 3 is a detailed diagram illustrating a process of packaging by following steps 3 A through 3 E.
  • FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3 .
  • FIG. 5 is a diagram exemplarily illustrating a manner in which the pusher is used.
  • FIG. 6 is a perspective view of the envelope and the articles to be packaged.
  • FIG. 7 is a side view of the packaging equipment using the pusher.
  • FIG. 8 is a perspective view of the pusher.
  • FIG. 9 is a sectional view taken along the line IX-IX in FIG. 8 .
  • FIG. 10 is a detailed diagram illustrating a process of packaging by following steps (a) through (f).
  • FIG. 11 is a diagram exemplarily illustrating a manner in which the pusher is used.
  • FIG. 12 is a view similar to FIG. 9 , showing the head member according to another embodiment.
  • FIG. 13 is a perspective view of the finished package obtained by using the head member shown by FIG. 12 .
  • a to-and-fro movement direction (machine direction)
  • FIG. 1 shows an envelope 2 for which a pusher 1 (See FIGS. 2 and 3 ) according to the present invention is used and articles to be packaged in the envelope 2 , more specifically, an assembly 15 comprising a plurality of individual menstruation napkin-packages 3 .
  • the envelope 2 is made of, for example, a flexible and air-impervious plastic film and has a closed end 4 formed with heat-seal 2 d and an open end 5 opposite to the closed end 4 . Between the closed end 4 and the open end 5 , a pair of lateral walls 7 formed with a pair of gussets 6 , respectively.
  • Each of the individual napkin-packages 3 comprises a menstruation napkin (not shown) and a bag 3 a made of flexible sheet material such as a plastic film or a nonwoven fabric wherein a given number of such individual napkin-packages which will be packaged in the envelope 2 are orderly arranged in a machine direction A (See FIG. 2 also) and in a cross direction B extending orthogonally to the machine direction A to form the assembly 15 .
  • FIG. 2 is a lateral diagram schematically illustrating packaging equipment 10 using the pusher 1 according to the present invention. Operation of the packaging equipment comprises a first feeding step 11 in which the envelopes 2 are intermittently fed, a second feeding step 12 in which the assembly 15 of the individual napkin-packages 3 is intermittently fed and a packing step 13 in which the finished packages 14 (See FIG. 3 also) are successively obtained.
  • the envelopes 2 each previously formed with the gussets 6 associated with the closed end 4 are intermittently fed with the open end 5 ahead from the left hand as viewed in FIG. 2 .
  • Top and bottom surfaces 8 , 9 (See FIG. 1 ) of the envelope 2 are respectively sucked by upper and lower suction plates 16 for flaring and thereby the open end 5 is flared as shown by FIG. 1 .
  • the suction plates 16 horizontally move in a direction of the arrow C to put the flared open end 5 on one bucket 21 a of a plurality of buckets 21 and then move away from the open end 5 to respective initial positions as illustrated in FIG. 2 .
  • the buckets 21 serve to maintain the open end 5 in the flared state and, in FIG.
  • the envelope 2 put on the one bucket 21 a of the buckets 21 is indicated as the envelope 2 a contoured by the imaginary line.
  • These buckets 21 are mounted on a disc 22 adapted to be intermittently clockwise or counterclockwise rotated so that the envelope 2 a put on the bucket 21 a is rotated integrally rotated by 180° and thereby moved from the upper-side to the lower-side as viewed in FIG. 2 .
  • the envelope 2 a having moved downward is indicated as the envelope 2 b contoured by the imaginary line and the bucket 21 a is indicated as the bucket 21 b.
  • the assembly 15 is transported on a conveyor 17 in a direction of the arrow D and transferred to a lifter 18 included in the conveyor 17 .
  • the lifter 18 is vertically movable to transfer the assembly 15 loaded on the conveyor 17 upward as indicated by the arrow E.
  • the assembly 15 a the assembly 15 a.
  • an endless belt 17 a adapted to be intermittently moved is provided with a plurality of pins 17 b at regular intervals so that the assembly 15 slidably loaded on a support means (not shown) on the conveyor 17 is pushed by the pin 17 b from the right as viewed in FIG. 2 , i.e., in the direction of the arrow D and thereby moved in the direction of the arrow D.
  • the packing step 13 in FIG. 2 involves the pusher 1 , upper and lower pressure plates 31 , upper and lower seal plates 32 and an endless belt 33 .
  • the pusher 1 includes a head unit 36 at the left hand as viewed in the machine direction A and a rod unit 37 at the right hand as viewed in the machine direction A, respectively.
  • the rod unit 37 is interlocked with a drive mechanism (not shown) causing to-and-fro movement of the pusher 1 in the machine direction A and, in FIG. 2 , the pusher 1 is shown to be in its retracted position.
  • the envelope 2 b, the bucket 21 b on which the envelope 2 b is put, the assembly 15 a having moved upward and the pusher 1 are aligned' in the machine direction A.
  • the pusher 1 is moved leftward so that the head unit 36 thereof may come in contact with and push the assembly 15 a into the bucket 21 b.
  • the head unit 36 is moved further forward to push the assembly 15 a into the envelope 2 b and then to push the envelope 2 b leftward by the intermediary of the assembly 15 a until the envelope 2 b containing therein the assembly 15 a comes free from the bucket 21 b and is loaded on the endless belt 33 .
  • the head unit 36 moves away from the envelope 2 b rightward in the machine direction A and simultaneously the two pressure plates 31 move in a vertical direction so as to get close to each other and thereby to prevent the envelope 2 b from moving rightward.
  • the two heated seal plates 32 move in a vertical direction so as to get close to each other until these heated seal plates 32 pinch the open end 5 of the envelope 2 b and thereby form a heat-seal 2 e (See FIG. 3 ).
  • the seal plates 32 move back to the respective positions as illustrated and a finished package 14 is obtained.
  • the finished package 14 is transported leftward by the endless belt 33 .
  • FIG. 3 is a diagram illustrates details of the packing step 13 wherein the lifter 18 and the disc 22 are not illustrated for simplicity.
  • the bucket 21 b having the envelope 2 b put thereon, the assembly 15 a and the pusher 1 are aligned in the machine direction A.
  • the head unit 36 of the pusher 1 has a front end portion 41 and a rear end portion 42 opposite to the front end portion 41 between which a pair of lateral walls 43 and top and bottom walls 44 , 45 are defined.
  • the front end portion 41 includes a front surface 46 (See FIG. 4 ) adapted to come in contact with the assembly 15 and the rear end portion 42 includes a rear surface 47 adapted to be connected with the rod unit 37 .
  • the lateral walls 43 are formed with V-shaped grooves 51 extending from the front end portion 41 toward the rear end portion 42 and surfaces of the respective V-shaped grooves 51 are formed with air suction ports 52 .
  • the air suction ports 52 are fluid-communication with air suction means such as a vacuum pump so that air inside the envelope 2 b may be sucked through these air suction ports for a predetermined time period in the packing step 13 .
  • the front surface 46 is formed with an air supply port 53 (See FIG. 4 ).
  • the air supply port 53 is fluid-communication with ambient air via a ductwork (not shown) extending within the head unit 36 or connected to a compressed air supply source (not shown) such as a compressor.
  • the ductwork provided in the case of the air supply port 53 adapted to be in fluid-communication with ambient air will have its open end in a region between the front end portion 41 and the rear end portion 42 , in the rear end portion 42 or a region behind the rear end portion 42 .
  • the head unit 36 moves forward to push the assembly 15 a into the tunnel-like bucket 21 b and further moves forward to push the assembly 15 a into the envelope 2 b until the envelope 2 b comes free together with the assembly 15 a from the bucket 21 b.
  • the head unit 36 begins to move away from the envelope 2 b and simultaneously a pair of the pressure plates 31 begins to get close to each other.
  • the air suction port 52 starts to be activated and, in response thereto, the lateral walls 7 of the envelope 2 b begins to be deformed in accordance with the V-shape of the respective grooves 51 in the vicinity of the open end 5 and the gussets 57 (See FIG. 3E ) begin to be formed.
  • the air supply port 53 of the head unit 36 is maintained in fluid-communication with the ambient air or the inside of the envelope 2 b can be supplied with compressed air as the head unit 36 moves away from the envelope 2 b and, in each case, fluid-communication is maintained between the inside and the outside of the envelope 2 b.
  • the assembly 15 is compressed and its volume is decreased as the pusher 1 moves forward to push the assembly 15 and decompressed and its volume is increased again as the pusher 1 moves rearward.
  • the envelope 2 b would otherwise be trapped in so-called depressurized condition as the pusher 1 moves rearward.
  • the pusher 1 may be provided with the air supply port 53 to present the envelope 2 b from being trapped in such depressurized condition.
  • the heated upper and lower seal plates 32 get close to each other about the envelope 2 b from which the head unit 36 has moved away and pinch the open end 5 of the envelope 2 b to form the heat-seal 2 e (See FIG. 3E ).
  • FIG. 3E illustrates the finished package 14 obtained in the packing step 13 .
  • the finished package 14 is formed with, in addition to the previously formed heat-seal 2 d, the heat-seal 2 e.
  • the lateral walls 7 of the envelope 2 are formed with the gussets 56 , 57 , respectively, in the vicinity of the heat-seals 2 d, 2 e.
  • FIG. 4 is a sectional view taken along the line IV-IV in the head unit 36 illustrated by FIG. 3A .
  • the front surface 46 is formed with the air supply port 53 .
  • V-shaped groove 51 is laterally facing and provided in its surface with the air suction port 52 .
  • the envelope 2 b indicated by the imaginary line along the V-shaped groove 51 is deformed under vacuum exerted through the air suction port 52 and starts to form the gusset 57 .
  • the central region of the envelope 2 is assured to be maintained in fluid-communication with ambient air or supplied with compressed air via the air supply port 53 formed in the head unit 36 even the vacuum suction to form the envelope 2 with the gussets 57 begins. Consequentially, the envelope 2 would not be trapped in the depressurized condition. In this way, the individual packages 3 constituting the assembly 15 would not be compressed by depressurized envelope and thereby deformed. In addition, the finished package would not be undesirably deformed and therefore it is facilitated to stack a plurality of the finished packages 14 for bale packaging or displaying.
  • timing control for starting and ending of air suction through the air suction port 52 and for starting and ending of air supply through the air supply port 53 can be done by providing the packaging equipment with control mechanisms (not shown) operatively associated with these timing control operations.
  • the V-shaped grooves 51 in the illustrated embodiment may be replaced by U-shaped grooves or the other various types of grooves.
  • FIG. 5 is a diagram similar to FIG. 3A exemplarily illustrating a manner in which the pusher 1 is used.
  • the envelope 2 b has been put on the bucket 21 b and the closed end 4 has moved into the bucket 21 b from the left hand and in the machine direction A.
  • the closed end 4 has its inner surface exposed and faces the assembly 15 a.
  • the assembly 15 a comes in contact with the inner surface of the closed end 4 of the envelope 2 b as the assembly 15 a is pushed by the pusher 1 into the bucket 21 b.
  • the assembly 15 a is moved into the envelope 2 b until the position shown by FIG. 3B is reached as the pusher 1 is moved forward. To bring the envelope 2 b into the state of FIG.
  • pressurize air may be injected from outside of the closed end 4 into the envelope 2 b and thereby the closed end 4 may be forced to move into the bucket 21 b from the left hand as viewed in FIG. 5 .
  • pusher 1 and packaging equipment 10 including this pusher 1 having been described hereinabove with reference to FIGS. 1 through 5 are suitable for packaging of the flexible and easily deformable articles such as menstruation napkins and disposable diapers, it is obvious that these pusher 1 and packaging equipment 10 can be effectively used for the other articles which are not easily deformable.
  • FIG. 6 shows an envelope 2 for which a pusher 101 (See FIGS. 7 and 8 ) according to one preferred embodiment of the present invention is used and articles to be packaged in the envelope 2 , more specifically, an assembly 15 comprising a plurality of individual menstruation napkin-packages 3 .
  • the envelope 2 is made of, for example, flexible and air-impervious plastic film and has a closed end 4 formed with heat-seal 2 d and an open end 5 opposite to the closed end 4 . Between the closed end 4 and the open end 5 , a pair of lateral walls 7 formed with a pair of gussets 6 , respectively.
  • Each of the individual menstruation napkin-packages 3 comprises a menstruation napkin (not shown) and a bag 3 a made of a flexible sheet material such as a plastic film or a nonwoven fabric wherein a given number of such individual menstruation napkin-packages which will be packaged in the envelope 2 are orderly arranged in a machine direction A (See FIG. 7 also) and in a cross direction B extending orthogonally to the machine direction A to form the assembly 15 .
  • FIG. 7 is a lateral diagram schematically illustrating packaging equipment 110 using the pusher 101 according to the present invention.
  • Operation of the packaging equipment 110 comprises a first feeding step 11 in which the envelopes 2 are intermittently fed, a second feeding step 12 in which the assembly 15 of the individually packaged articles 3 is intermittently fed and a packing step 13 in which the finished packages 14 (See FIG. 6 also) are successively obtained.
  • the envelopes 2 each previously formed with the gussets 6 associated with the closed end 4 are intermittently fed with the open end 5 ahead from the left hand as viewed in FIG. 7 .
  • Top and bottom surfaces 8 , 9 (See FIG. 6 ) of the envelope 2 are respectively sucked by upper and lower suction plates 16 for flaring and thereby the open end 5 is flared as shown by FIG. 6 .
  • the suction plates 16 horizontally move in a direction of the arrow C to put the flared open end 5 on one bucket 21 a of a plurality of buckets 21 and then move away from the open end 5 to respective initial positions as illustrated in FIG. 7 .
  • the buckets 5 serve to maintain the open end 5 in the flared state and, in FIG.
  • the envelope 2 put on the one bucket 21 a of the buckets 21 is indicated as the envelope 2 a contoured by the imaginary line.
  • These buckets 21 are mounted on a disc 22 adapted to be intermittently clockwise or counterclockwise rotated so that the envelope 2 a put on the bucket 21 a is rotated integrally rotated by 180° and thereby moved from the upper-side to lower-side as viewed in FIG. 7 .
  • the envelope 2 a having moved downward is indicated as the envelope 2 b contoured by the imaginary line and the bucket 21 a is indicated as the bucket 21 b.
  • the assembly 15 is transported on a conveyor 17 in a direction of an arrow D and transferred to a lifter 18 included in the conveyor 17 .
  • the lifter 18 is vertically movable to transfer the assembly 15 loaded on the conveyor 17 upward as indicated by the arrow E.
  • the assembly 15 a the assembly 15 a.
  • an endless belt 17 a adapted to be intermittently moved is provided with a plurality of pins 17 b at regular intervals so that the assembly 15 slidably loaded on a support means (not shown) on the conveyor 17 is pushed by the pin 17 b from the right hand as viewed in FIG. 7 , i.e., in the direction of the arrow D and thereby moved toward the lifter 18 .
  • the packing step 13 in FIG. 7 involves the pusher 101 , upper and lower pressure plates 31 , upper and lower seal plates 32 and an endless belt 33 .
  • the pusher 101 includes a head unit 136 at the left hand as viewed in the machine direction A and a rod unit 137 at the right hand as viewed in the machine direction A, respectively.
  • the rod unit 137 is interlocked with a drive mechanism (not shown) causing to-and-fro movement the pusher 101 in the machine direction A and, in FIG. 7 , the pusher 101 is shown to be in its retracted position.
  • the envelope 2 b, the bucket 21 b on which the envelope 2 b is put, the assembly 15 a having moved upward and the pusher 101 are aligned in the machine direction A.
  • the pusher 101 is moved leftward as viewed in the machine direction A so that the head unit 136 thereof may come in contact with and push the assembly 15 a into the bucket 21 b.
  • the head unit 136 moves further forward to push the assembly 15 a into the envelope 2 b and then to push the envelope 2 b leftward by the intermediary of the assembly 15 a until the envelope 2 b containing therein the assembly 15 a comes free from the bucket 21 b and is loaded on the endless belt 33 .
  • a part of the head unit 136 having completed its function to push the assembly 15 a into the envelope 2 b remains inside the envelope 2 b together with the assembly 15 a.
  • the head unit 136 moves away from the envelope 2 b rightward in the machine direction A and simultaneously the two pressure plates 31 move in a vertical direction so as to get close to each other and thereby to prevent the envelope 2 b from moving rightward.
  • the two heated seal plates 32 move in a vertical direction so as to get close to each other until these heated seal plates 32 pinch the open end 5 of the envelope 2 b and thereby form a heat-seal 2 e (See FIG. 8 ).
  • the seal plates 32 move back to the respective positions as illustrated and a finished package 14 is obtained.
  • the finished package 14 is transported leftward by the endless belt 33 .
  • FIG. 8 is a perspective view of the pusher 101 and FIG. 9 is a sectional view taken along the line IX-IX in FIG. 8 .
  • FIG. 9 the envelope 2 b into which the pusher 101 has moved and the envelope 2 b ′ beginning to be formed with the gusset 61 (See FIG. 10 ) as an upper sub-plate 152 and a lower sub-plate 153 are moved away from the envelope 2 b are indicated by the imaginary lines.
  • the head unit 136 of the pusher 101 has a horizontal to-and-fro movement direction corresponding to the machine direction A, a width direction corresponding to the cross direction B orthogonal to the machine direction A and a height direction T orthogonal to both the to-and-fro movement direction and the width direction.
  • the head unit 136 comprises three plates, i.e., a main plate 151 as a first plate, and upper and lower sub-plates 152 , 153 as second and third plates, respectively, arranged to sandwich the main plate 151 therebetween.
  • the main plate 151 , the upper sub-plate 152 and the lower sub-plate 153 are adapted for to-and-fro movement in the machine direction A which is independent one from another.
  • a main rod 137 functioning to actuate to-and-fro movement of the main plate 151 is attached to a rear end wall 151 b of the main plate 151
  • a sub-rod 138 functioning to actuate to-and-fro motion of the upper sub-plate 152 is attached to a side plate 152 b of the upper sub-plate 152
  • a sub-rod 139 functioning to actuate to-and-fro movement of the lower sub-plate 153 is attached to a side plate 153 b of the lower sub-plate 153 .
  • the main rod 137 and the sub-rods 138 , 139 are respectively connected to drive sources (not shown) such as pistons.
  • the main plate 151 , the sub-plate 152 and the sub-plate 153 respectively have a main frontal end wall 151 a, a frontal end sub-wall 152 a and a frontal end sub-wall 153 a integrated together to define a frontal end wall 141 of the pusher 101 .
  • These main front end wall 151 a, the front end sub-wall 152 a and the frontal end sub-wall 153 a are regions cooperating together to be pressed against the assembly 15 as the pusher 101 moves forward.
  • the frontal end wall 141 of the pusher 101 integrally defined by the frontal surface wall 151 a, 152 a and 153 a may be shaped and sized to be generally coincident with those of a region 19 of the assembly 15 facing the frontal end wall 141 of the pusher 101 or to be slightly smaller than the size of this region 19 of the assembly 15 .
  • the maximum dimension of the frontal end wall 141 as measured in the cross direction B and the height direction T may be set to be generally the same as or slightly smaller than the maximum dimension of the region 19 of the assembly 15 .
  • the pusher 101 further includes a pair of lateral walls 142 symmetrically shaped as viewed in the cross direction B.
  • Each of the lateral walls 142 comprises a main lateral wall 151 c in the main plate 151 , a lateral sub-wall 152 c of the sub-plate 152 and a lateral sub-wall 153 c of the sub-plate 153 wherein the main lateral wall 151 c is formed with a groove 15 extending from the frontal wall 151 a in the machine direction A and having a V-shaped cross-section and the groove 151 c is formed with a suction port 157 .
  • the suction port 157 is connected to an air suction source (not shown) such as a vacuum pump.
  • the lateral sub-walls 152 c, 153 c are smoothly finished.
  • the main frontal end wall 151 a of the frontal end wall 141 is formed with an air supply port 158 .
  • the air supply port 158 extends to an air inlet 159 formed in a main rear end wall 151 b of the main plate 151 and fluid-communicates with ambient air.
  • FIG. 10 is a diagram illustrates details of the packing step 13 wherein the lifter 18 and the disc 22 are not illustrated for simplicity.
  • the bucket 21 b having the envelope 2 b put thereon, the assembly 15 a and the pusher 101 are aligned in the machine direction A wherein the region 19 of the assembly 15 a faces the frontal end wall 41 of the pusher 101 .
  • the head unit 136 moves forward and is pressed against a generally entire area of the region 19 of the assembly 15 a to push the assembly 15 a into the tunnel-like bucket 21 b and then into the envelope 2 b until the envelope 2 b comes free from the bucket 21 b. A part of the head unit 136 moves into the envelope 2 b.
  • the main plate 151 which has remained stationary in the phase of FIG. 10C begins to move away from the envelope 2 b and a pair of the pressure plates 31 moves further closer to the envelope 2 b.
  • air inside the envelope 2 b begins to be sucked via the suction port 157 and, in consequence, the lateral walls 7 of the envelope 2 b begin to be deformed in the vicinity of the open end 5 in accordance with the shape of the respective grooves 156 .
  • the gussets 61 See FIG. 10F
  • the air supply ports 158 See FIG.
  • the assembly 15 might have its volume decreased as the assembly 15 is pushed by the pusher 101 moving forward and might have its volume increased and might be brought into depressurized state as the pusher 101 moves backward.
  • the air supply port 158 of the pusher 101 can reliably prevent the assembly 15 from becoming such depressurized state.
  • a pair of heated seal plate 32 moves closer to each other about the envelope 2 b from which the main plate has moved away and forms the open end 5 of the envelope 2 b with the heat-seal 2 e (See FIG. 10F ). While not illustrated, the main plate 151 , the upper sub-plate 152 and the lower sub-plate 153 having moved back are position-adjusted so that the frontal end wall 151 a, 152 a and 153 a are positioned as illustrated by FIG. 8 .
  • FIG. 10F illustrates the finished package 14 having been obtained in the packing step 13 .
  • the finished package 14 has, in addition to the previously formed heat-seal 2 d as seen in FIG. 6 , the heat-seal 2 e which has been formed on an end wall 62 of the finished package 14 substantially at a middle level as viewed in a vertical direction of FIG. 10F .
  • the lateral walls 7 of the envelope 2 in the finished package 14 have been formed with the gussets 6 , 61 , respectively.
  • FIG. 9 The process in which the gussets 61 are formed in the vicinity of the open end 5 in the step of FIG. 10D is illustrated also by FIG. 9 .
  • the main plate 151 constituting the head unit 136 is formed in the V-shaped groove 156 thereof with the suction ports 157 and the envelope 2 b indicated by the imaginary line is formed with the gussets 61 under vacuum acting upon the envelope 2 b via the suction port 157 .
  • the gussets 61 are formed after the upper and lower sub-plates 152 , 153 have moved away from the envelope 2 b.
  • portions of the envelope 2 b having been in a state of tension due to close contact with the upper and lower sub-plates 152 , 153 are relaxed as the upper and lower sub-plates 152 , 153 move away from the envelope 2 b so that the envelope 2 b may be easily deformed in accordance with the shape of the respective grooves 156 .
  • the pusher 101 it is easily possible for the pusher 101 to form the envelope 2 b with the gussets 61 even if the envelope 2 b has partially been in close contact with the head unit 136 when the pusher 101 has pushed the assembly 15 into the envelope 2 b.
  • the unique arrangement of the head unit 136 as has been described above effectively facilitates the operation of deforming the envelope 2 b along the grooves 156 as indicated by the imaginary lines and thereby forming the gussets 61 without damaging the assembly 15 a.
  • a beneficial effect can be expected from such head unit 136 when an open angle alpha of the groove 156 is set to be as small as possible and thereby a depth in the cross section B of the gusset 61 formed by the main plate 151 is set to be as large as possible.
  • the central region of the envelope 2 is assured to be maintained in fluid-communication with ambient air or supplied with compressed air via the air supply port 158 formed in the head unit 136 even the vacuum suction to form the envelope 2 with the gussets 61 begins. Consequentially, the envelope 2 would not be trapped in the depressurized condition. In this way, the individual packages 3 constituting the assembly 15 would not be compressed by depressurized envelope and thereby deformed. In addition, the finished package 14 would not be undesirably deformed and therefore it is facilitated to stack a plurality of the finished packages 14 for bale packaging or displaying.
  • the air inlet 159 extending to the air supply port 158 functioning in the manner as has been described above may be provided in the rear end wall 151 b of the main plate 151 or between the main frontal end wall 151 a and the main rear end wall 151 b or behind the main rear end wall 151 b.
  • the air inlet 159 may be connected to a pressurized air supply source such as a compressor so that the air inlet 159 may be used to supply the envelope 2 b with pressurized air.
  • timing control for starting and ending of air suction through the air suction port 157 and for starting and ending of air supply through the air supply port 158 can be done by providing the packaging equipment with control mechanisms (not shown) operatively associated with these timing control operations.
  • the V-shaped grooves 156 in the illustrated embodiment may be replaced by U-shaped grooves or the other various types of grooves.
  • the pusher 101 it is possible to provide the upper sub-plate 152 or the lower sub-plate 153 also with the air supply ports functioning for the envelope 2 b in order to prevent the envelope 2 b from being trapped in the depressurized condition when these sub-plates 152 , 153 move away from the envelope 2 b. It is not essential to provide the main plate 151 with such air supply ports as in the illustrated embodiment but it is possible without departing from the scope of the invention to provide any one of the main plate 151 , the upper sub-plate 152 and the lower sub-plate 153 depending on respective sizes of the envelope 2 b, the assembly 15 and the head unit 136 .
  • the head unit 136 of the pusher 101 preferably comprises three components, i.e., three plates 151 , 152 and 153 in the height direction T.
  • three components i.e., three plates 151 , 152 and 153 in the height direction T.
  • the head unit 136 comprising three components may be replaced by the head unit 136 comprising two components in the height direction.
  • FIG. 11 is a diagram similar to FIG. 1 OA exemplarily illustrating a manner in which the pusher 101 is used.
  • the open end 5 of the envelope 2 b has been put on the bucket 21 b and the closed end 4 has moved into the bucket 21 b from the left hand and in the machine direction A.
  • the closed end 4 has its inner surface exposed and faces the assembly 15 a.
  • the assembly 15 a comes in contact with the inner surface of the closed end 4 of the envelope 2 b as the assembly 15 a is pushed by the pusher 101 into the bucket 21 b.
  • the assembly 15 a is moved into the envelope 2 b until the position shown by FIG. 10B is reached as the pusher 101 is moved forward. To bring the envelope 2 b into the state of FIG.
  • pressurize air may be injected from outside of the closed end 4 into the envelope 2 b and thereby the closed end 4 may be forced to move into the bucket 21 b from the left hand as viewed in FIG. 11 .
  • the pusher 101 may be used to push the assembly 15 a into the envelope 2 b to obtain a compactly finished package 14 without trapping air inside the envelope 2 b in front of the assembly 15 a.
  • FIG. 12 is a partial sectional view similar to FIG. 9 , showing one preferred embodiment of the head unit 136 in the pusher 101 according to the present invention and FIG. 13 is a perspective view of the finished package 14 obtained by using the head unit 136 shown by FIG. 12 .
  • the head unit 136 shown by FIG. 12 comprises the main plate 151 as the first plate and the upper sub-plate 152 as the second plate.
  • the grooves 156 of the main plate 151 may be used to form the envelope 2 b with the gussets 61 after the upper sub-plate 152 has moved away from the envelope 2 b.
  • the envelope 2 b indicated by imaginary lines in FIG.
  • the heat-seal 2 e formed on the end wall 62 of the envelope 2 is not at the middle as viewed in the vertical direction of FIG. 13 but biased downward.
  • Such end wall 62 may be advantageously utilized when it is desired to provide this end wall 62 with print of large graphic or logo for which it is undesirable to divide such graphic or logo in two.
  • pusher 101 and packaging equipment 110 including this pusher 101 having been exemplarily described hereinabove with reference to FIGS. 6 through 13 are also suitable for packaging of the flexible and easily deformable articles such as menstruation napkins and disposable diapers, it is obvious that these pusher 101 and packaging equipment 110 can be effectively used for the other articles which are not easily deformable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Container Filling Or Packaging Operations (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
US12/920,067 2008-02-28 2008-12-18 Pusher used in packaging equipment Abandoned US20110036055A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2008048441A JP5238291B2 (ja) 2008-02-28 2008-02-28 包装装置におけるプッシャ
JP2008-048441 2008-02-28
JP2008-084685 2008-03-27
JP2008084685A JP5238318B2 (ja) 2008-03-27 2008-03-27 包装装置におけるプッシャ
PCT/JP2008/073037 WO2009107307A1 (ja) 2008-02-28 2008-12-18 包装装置におけるプッシャ

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US20110036055A1 true US20110036055A1 (en) 2011-02-17

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US12/920,067 Abandoned US20110036055A1 (en) 2008-02-28 2008-12-18 Pusher used in packaging equipment

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US (1) US20110036055A1 (zh)
EP (1) EP2258617A1 (zh)
KR (1) KR20100125360A (zh)
CN (1) CN102015454B (zh)
AU (1) AU2008351711A1 (zh)
BR (1) BRPI0820754A2 (zh)
EG (1) EG25636A (zh)
MX (1) MX2010009455A (zh)
TW (1) TWI478847B (zh)
WO (1) WO2009107307A1 (zh)

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DE102012007594A1 (de) * 2012-04-16 2013-10-17 Multivac Sepp Haggenmüller Gmbh & Co. Kg Verpackungsvorrichtung und Verfahren zum Positionieren von Produkten auf Verpackungsträgern
US20160368631A1 (en) * 2014-03-17 2016-12-22 Clinpet Japan Co., Ltd. Method for Packing Stacked Bundles Made of Paper and Packed Body of Stacked Bundles Made of Paper Packed by the Method
US9655303B2 (en) 2013-09-17 2017-05-23 Signode Industrial Group Llc Method for containing a bale of compressible material
US20180016043A1 (en) * 2015-01-23 2018-01-18 Ishida Co., Ltd. Push-in mechanism and box packing device provided with same
US20180215486A1 (en) * 2015-08-06 2018-08-02 Pulsar S.R.L. Apparatus for packaging a product in a respective preformed wrapping
US10206333B2 (en) 2015-05-14 2019-02-19 Signode Industrial Group Llc Compressed bale packaging apparatus with bag applicator assist device and bag for same
US11053038B2 (en) * 2014-10-02 2021-07-06 The Boeing Company Packaging apparatuses and systems
CN113247356A (zh) * 2021-05-17 2021-08-13 冠卓智能科技(浙江)有限责任公司 一种包装成型机结构
US11472586B2 (en) * 2017-11-19 2022-10-18 Yoshihide Nishikawa Automatic insertion device and automatic insertion method for backing-equipped shrink film packaging
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CN102717925B (zh) * 2012-06-23 2013-10-09 常德烟草机械有限责任公司 一种面巾纸枕式包装机连续套袋包装的装置及其方法
JP6026152B2 (ja) * 2012-06-25 2016-11-16 澁谷工業株式会社 箱詰め装置
JP5785925B2 (ja) * 2012-11-22 2015-09-30 ユニ・チャーム株式会社 複数のシート状製品が積み重ねられてなるシート状製品群の包装装置、及び包装方法
JP5858972B2 (ja) * 2013-11-20 2016-02-10 オリオン機械工業株式会社 包装機の封止装置
KR101742224B1 (ko) 2014-12-19 2017-06-01 주식회사 대성자동 포장기계 물품 포장 장치
CN106628300A (zh) * 2016-12-29 2017-05-10 上海三渠智能科技有限公司 全自动卫生巾包装机
CN112009776B (zh) * 2019-05-28 2023-04-28 王子控股株式会社 吸收性物品的包装方法及吸收性物品的包装体
CN112027230A (zh) * 2020-09-15 2020-12-04 巢湖旺角食品有限公司 一种袋中袋包装装置
CN113212853B (zh) * 2021-04-29 2023-03-10 福建恒安集团有限公司 一种适用少片包装的包装机

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US9156575B2 (en) * 2011-01-21 2015-10-13 Signode Industrial Grop LLC Bagging, sealing, and labeling system and method
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DE102012007598A1 (de) * 2012-04-16 2013-10-17 Multivac Sepp Haggenmüller Gmbh & Co. Kg Schiebereinheit und Verfahren zum Positionieren von Produkten auf einem Verpackungsträger
DE102012007594A1 (de) * 2012-04-16 2013-10-17 Multivac Sepp Haggenmüller Gmbh & Co. Kg Verpackungsvorrichtung und Verfahren zum Positionieren von Produkten auf Verpackungsträgern
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US11053038B2 (en) * 2014-10-02 2021-07-06 The Boeing Company Packaging apparatuses and systems
US10875674B2 (en) * 2015-01-23 2020-12-29 Ishida Co., Ltd. Push-in mechanism and box packing device provided with same
US20180016043A1 (en) * 2015-01-23 2018-01-18 Ishida Co., Ltd. Push-in mechanism and box packing device provided with same
US10206333B2 (en) 2015-05-14 2019-02-19 Signode Industrial Group Llc Compressed bale packaging apparatus with bag applicator assist device and bag for same
US20180215486A1 (en) * 2015-08-06 2018-08-02 Pulsar S.R.L. Apparatus for packaging a product in a respective preformed wrapping
US11472586B2 (en) * 2017-11-19 2022-10-18 Yoshihide Nishikawa Automatic insertion device and automatic insertion method for backing-equipped shrink film packaging
US20220348371A1 (en) * 2019-12-24 2022-11-03 Orion Machinery Co., Ltd. Automatic filling and packaging device
US11518554B2 (en) * 2019-12-24 2022-12-06 Orion Machinery Co., Ltd. Automatic filling and packaging device
CN113247356A (zh) * 2021-05-17 2021-08-13 冠卓智能科技(浙江)有限责任公司 一种包装成型机结构

Also Published As

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BRPI0820754A2 (pt) 2015-06-16
CN102015454A (zh) 2011-04-13
MX2010009455A (es) 2010-09-24
TWI478847B (zh) 2015-04-01
EG25636A (en) 2012-04-12
TW201002577A (en) 2010-01-16
KR20100125360A (ko) 2010-11-30
WO2009107307A1 (ja) 2009-09-03
CN102015454B (zh) 2012-11-28
EP2258617A1 (en) 2010-12-08
AU2008351711A1 (en) 2009-09-03

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