EP0200445A2 - Verpackungsmaschine - Google Patents

Verpackungsmaschine Download PDF

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Publication number
EP0200445A2
EP0200445A2 EP86302965A EP86302965A EP0200445A2 EP 0200445 A2 EP0200445 A2 EP 0200445A2 EP 86302965 A EP86302965 A EP 86302965A EP 86302965 A EP86302965 A EP 86302965A EP 0200445 A2 EP0200445 A2 EP 0200445A2
Authority
EP
European Patent Office
Prior art keywords
folding
blank
movement
folder
pivotal
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
EP86302965A
Other languages
English (en)
French (fr)
Other versions
EP0200445B1 (de
EP0200445A3 (en
Inventor
Rolf Muller
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.)
Mead Corp
Original Assignee
Mead 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
Application filed by Mead Corp filed Critical Mead Corp
Publication of EP0200445A2 publication Critical patent/EP0200445A2/de
Publication of EP0200445A3 publication Critical patent/EP0200445A3/en
Application granted granted Critical
Publication of EP0200445B1 publication Critical patent/EP0200445B1/de
Expired 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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/06—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths
    • B65B11/08—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path
    • B65B11/10—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents
    • B65B11/105—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a single straight path to fold the wrappers in tubular form about contents the axis of the tube being parallel to the conveying direction

Definitions

  • This invention relates to a folding mechanism in a machine for packaging articles in a tubular wraparound carrier formed from a blank having a pair of walls adjoined together along a fold line and having a pair of article retaining flaps disposed astride the fold line, and which includes a conveyor for advancing a blank and its articles along a predetermined path.
  • the mechanism folds such flaps inwardly of the carrier.
  • the invention is concerned with the inward folding of such pairs of flaps cut from an open-ended tubular wrapper to define article receiving apertures. The two flaps of each pair,of flaps are engaged and folded inwardly while the adjacent portions of the blank are held against substantial sidewise movement by suitable guide means.
  • the invention provides, in a machine for packaging articles in a tubular wrap-around carrier formed from a blank having a pair of walls adjoined together along a fold line and having a pair of article retaining and blank reinforcing flaps disposea astride said fold line and which includes means for advancing a blank and its associated articles along a predetermined path, a mechanism for engaging and folding said pair of flaps and to fold such flaps inwardly of the carrier, said folding mechanism comprising a pivotal folder adapted to execute a folding movement thereby progressively to enter an aperture in the blank to fold the flaps and to retract therefrom during feed movement of the blank and said pivotal folder together through a folding station of the machine, said pivotal folder including a blank engaging portion and means for cooperation with actuating means to pivot the folder thereby to execute said folding movement and said retracting movement characterised in that said blank engaging portion comprises a pair of divergently pivotal fingers adapted to move apart consequent upon said folding movement of the folder.
  • the blank folding mechanism 10 comprises two pairs of chain and sprocket sets; an upper set 12 and a lower set 14.
  • the upper chain and sprocket set 12 comprises spaced sprockets 16 and 18 respectively, about which is entrained endless chain 20.
  • the lower chain and sprocket set 14 comprises spaced sprockets 22 and 24 respectively, about which is entrained chain 26.
  • the blank folding mechanism is adapted to be installed adjacent the infeed end of a packaging machine. Two such mechanisms are installed in side-by-side relationship so that a blank and article feed path is provided between the mechanisms.
  • the description hereinafter refers to the right-hand mechanism of the pair as viewed when looking downstream of the blank and article feed path 'F'.
  • a drive sprocket assembly 30 is driven from a suitable drive source (not shown) and includes upper sprocket 32 and lower sprocket 34 fixed on the same drive shaft 36 of the assembly.
  • Drive sprocket 32 transmits drive via endless chain 38 to__sprocket 16a which is coupled for rotation with sprocket 16 of the upper chain and sprocket set.
  • Drive sprocket 34 transmits drive via endless chain 40 to sprocket 24a which is coupled for rotation with sprocket 24 of the lower chain and sprocket set.
  • sprockets 16 and 18 of the upper chain and sprocket set 12 have their axes displaced longitudinally of the mechanism with respect to the axes of sprockets 22 and 24 of the lower chain and sprocket set 14.
  • the longitudinal spacing between the adjacent upper and lower sprockets at each end of the mechanism is equivalent to the distance between the attachment locations 'A', 'B' of a blank folding device 42 mounted in the space between the upper and lower chain and sprocket sets 12, 14 respectively.
  • a series (in this case, four) of similar devices 42, 42a, 42b and 42c is mounted between the chain and sprocket sets and each device is attached at location 'A' adjacent one of its ends to upper chain 20 and at location 'B' intermediate its ends to lower chain 26.
  • each blank folding device is moved along the chain paths.
  • each blank folding device is moved by the chains 20, 26 along a along a working path 'W' parallel to the blank and article feed path 'F' and transversely between sprockets 16 and 22 downstream of the working path to transfer for movement along a return path 'R' whereafter the device is transferred between sprockets 18 and 24 into a position upstream of the working path to complete one cycle of operation.
  • each blank folding device to the upper and lower chains necessarily causes the transverse movement of the device at the ends of the working and return paths to occur so that the longitudinal axis of the device remains parallel to the working and return paths and such that the outward facing side of the device always faces towards the blank and article feed path.
  • each blank folding device e.g. device 42 comprises a frame 44 by which the device is attached to the endless chains 20 and 26 and which accommodates a linear series of pivotal folders f1-f5.
  • the folders are mounted for pivotal movement independently of each other on a support shaft 46 spanning the length of frame 44 and are axially resiliently loaded by an end spring 48.
  • Each folder 'f' (see 'f1' in Figure 3) comprises an upstanding lug 50 which is rotatably mounted on shaft 46, a blank engaging portion 52 extending in one direction outwardly of the frame at the upper end of the lug and a cam follower 54 extending in the opposite direction outwardly of the frame at the lower end of the lug.
  • the blank engaging portion 52 of each folder comprises a pair of pivotal fingers fa and fb.
  • FIG. 4 illustrates the upstream end of the folding station '5' in which a carton blank 'b' of the wrap-around type is moving along the feed path 'F' in synchronism with folder device 42c.
  • the blank is formed with a linear series of article heel retaining apertures 'r' which are struck along the fold line 60 which foldably connects a side wall panel 62 with a bottom lap panel 64 of the blank.
  • Such heel retaining apertures are provided to receive e.g. heel portions of bottles to assist retention of the bottles in the completed carton.
  • the heel retaining apertures are each defined in part, by foldable reinforcing tabs t1 and t2 which are frangibly connected together by a small nick before the aperture is opened and which are foldable, to open the aperture, into overlapping relationship with adjacent portions of the side wall and base panel of the blank.
  • Blank 'b' is shown guided between guide bar 'g' and guide strip 'st' in feed path 'F' entering the folding station 'S'.
  • the blank is engaged by folding device 42c as it moves into the folding station 'S' of working path 'W'.
  • Fixed portions 'p' of the frame 44 Figure 1) are provided with pegs 'p g ' ( Figures 4-8) which locate in side wall apertures of the tlank to maintain the blank and folding device fixed as they move through the folding station.
  • Articles e.g. bottles to be wrapped are conveyed along the feed path 'F' adjacent blank 'b' by feed lugs 61 disposed at spaced locations along upper endless chain 38.
  • Each pivotal finger fla, f1b has a carton engaging end 'e' and a transverse shoulder '5' remote therefrom including pivot point 'p' located within the frame of the folding device.
  • the shoulder 'S' has a back abutment face 'sb' and a forward abutment face 'sf' disposed so as to strike against a back stop surface 'bs' and a forward stop surface 'fs' respectively of the frame.
  • the base panels are engaged by tightening elements (not shown) which braw together the base panels into overlapping relationship and consequentially cause heel portions of the articles to be located in respective ones of the heel retaining apertures 'r'.
  • the base panels are subsequently secured together preferably by means of cooperating locking tabs and apertures provided in the base panels.
  • Folder 'f2' is meanwhile intermediate cam profile positions 'C4' and 'C5'
  • folder 'f3' is intermediate cam profile positions 'C4' and 'C3'
  • folder 'f4' is at cam profile position 'C2' while folder 'f5' is at cam profile position 'C1'.
  • the folding device 42c When the folding device 42c is transferred through the position of device 42 into the return path 'R' it is conveyed through a re-set station 'RS' as occupied by folding device 42a ( Figure 2).
  • the re-set station includes a further cam block 68 ( Figure 3) in which a horizontal straight line cam track 70 is formed.
  • the downstream mouth of the cam track 70 is flared to lead in the cam followers of the folders f'.
  • the folders are reset during movement through the straight line cam track 70 into a position that puts the followers into alignment with the upstream end of cam track 58; that is, positioned for movement into cam profile C1 to repeat the foregoing cycle of operation on the next succeeding blank.
  • the fingers when the fingers are pivoted into their extreme outward position, the fingers move apart to engage and fold outwardly the tabs t1 and t2 of a heel retaining aperture 'r' and when the fingers are pivoted into their fully retraced position, the fingers are closed together.
EP19860302965 1985-04-24 1986-04-21 Verpackungsmaschine Expired EP0200445B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858510469A GB8510469D0 (en) 1985-04-24 1985-04-24 Packaging machine
GB8510469 1985-04-24

Publications (3)

Publication Number Publication Date
EP0200445A2 true EP0200445A2 (de) 1986-11-05
EP0200445A3 EP0200445A3 (en) 1987-11-19
EP0200445B1 EP0200445B1 (de) 1990-03-28

Family

ID=10578146

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860302965 Expired EP0200445B1 (de) 1985-04-24 1986-04-21 Verpackungsmaschine

Country Status (5)

Country Link
EP (1) EP0200445B1 (de)
JP (1) JPH0723130B2 (de)
DE (1) DE3669855D1 (de)
ES (1) ES293789Y (de)
GB (1) GB8510469D0 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0322159A1 (de) * 1987-12-21 1989-06-28 The Mead Corporation Faltmechanimus für Kartonklappen
EP0645306A1 (de) * 1993-09-24 1995-03-29 The Mead Corporation Schachtel-Faltvorrichtung für Hüllkartons
EP0708026A1 (de) * 1994-10-20 1996-04-24 Riverwood International Corporation Mechanismus zum Aktivieren von Schachteln
US5664401A (en) * 1993-09-24 1997-09-09 The Mead Corporation Carton folding mechanism for wraparound cartons
US5669203A (en) * 1994-10-20 1997-09-23 Riverwood International Corporation Carton activating mechanism

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6913059A (de) * 1968-09-13 1970-03-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6913059A (de) * 1968-09-13 1970-03-17

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0322159A1 (de) * 1987-12-21 1989-06-28 The Mead Corporation Faltmechanimus für Kartonklappen
US4970843A (en) * 1987-12-21 1990-11-20 The Mead Corporation Carton flap folding mechanism
EP0645306A1 (de) * 1993-09-24 1995-03-29 The Mead Corporation Schachtel-Faltvorrichtung für Hüllkartons
US5664401A (en) * 1993-09-24 1997-09-09 The Mead Corporation Carton folding mechanism for wraparound cartons
US5778630A (en) * 1993-09-24 1998-07-14 The Mead Corporation Carton folding mechanism for wraparound cartons
EP0708026A1 (de) * 1994-10-20 1996-04-24 Riverwood International Corporation Mechanismus zum Aktivieren von Schachteln
US5669203A (en) * 1994-10-20 1997-09-23 Riverwood International Corporation Carton activating mechanism

Also Published As

Publication number Publication date
JPH0723130B2 (ja) 1995-03-15
ES293789U (es) 1986-08-01
GB8510469D0 (en) 1985-05-30
JPS61259907A (ja) 1986-11-18
DE3669855D1 (de) 1990-05-03
ES293789Y (es) 1987-04-16
EP0200445B1 (de) 1990-03-28
EP0200445A3 (en) 1987-11-19

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