EP0913330A1 - Vorrichtung zum Anbringen eines Schnittes in die Umhüllung einer vorbeilaufenden Last - Google Patents

Vorrichtung zum Anbringen eines Schnittes in die Umhüllung einer vorbeilaufenden Last Download PDF

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Publication number
EP0913330A1
EP0913330A1 EP97203258A EP97203258A EP0913330A1 EP 0913330 A1 EP0913330 A1 EP 0913330A1 EP 97203258 A EP97203258 A EP 97203258A EP 97203258 A EP97203258 A EP 97203258A EP 0913330 A1 EP0913330 A1 EP 0913330A1
Authority
EP
European Patent Office
Prior art keywords
pallet
burden
perforation
finger
strip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97203258A
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English (en)
French (fr)
Inventor
Cyriaque Petitjean
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.)
CEFMA SAS
Original Assignee
CEFMA SAS
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 CEFMA SAS filed Critical CEFMA SAS
Priority to EP97203258A priority Critical patent/EP0913330A1/de
Publication of EP0913330A1 publication Critical patent/EP0913330A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D71/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material
    • B65D71/06—Packaging elements holding or encircling completely or almost completely the bundle of articles, e.g. wrappers
    • B65D71/08—Wrappers shrunk by heat or under tension, e.g. stretch films or films tensioned by compressed 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/18—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements
    • 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
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/18—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements
    • B65B61/182—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for making package-opening or unpacking elements by applying tear-strips or tear-tapes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/66—Inserted or applied tearing-strings or like flexible elements

Definitions

  • the invention relates to a device for making a cut in the envelope of a scrolling burden.
  • It relates more particularly to the field of bundling of batches various elements or containers, such as bottles or boxes, by means of a strip of film wrapped around the batch and heat-shrunk on it to ensure the reunion of its components.
  • the object of the present invention is to facilitate the tearing of a burden in providing a device that fits into a bundling chain and allows cut into the envelope of a moving burden.
  • the device comprises, on the one hand, a conveyor ensuring the movement of the loads, continuously and with a constant interval, and, on the other hand, a palette carrying at each end a finger perforator, this pallet being wedged in the middle on a rotary shaft connected to a means motor capable of rotating it by a fraction of a turn between two positions, namely, a perforation position, in which one of his fingers is in the path of a burden and protrudes towards the front face of this burden, and a position erasure, in which his fingers are out of the path of the burden.
  • This perforation means allows a cut to be made in the area of a envelope with a tear strip previously placed on the envelope or on the load, for example to facilitate gripping the ends of this strip, or more simply, directly in the envelope, when it is made of a material easily tearable synthetic.
  • FIG. 1 represents, in general, a burden A composed of two rows of three cylindrical containers 2 joined by a film 3 and comprising a grip 4 and a tear strip 5.
  • the containers 2, grouped in batches pass through a bundling device where the film 2 is wound in a loop around them before passing through a heating tunnel providing heat shrinkage of this film on the containers.
  • the grip handle 4 is adhesive, at least on its face turned towards the burden, and is attached to this burden, when stationary or in scrolling, by various means well known to those skilled in the art, which do not need to be described here.
  • the tear strip 5 which is attached to the stop or in scrolling against one of the front faces 6 of the burden, it is put in place by a device similar or identical to that described in FR-A-2 731 406
  • the burden A comprises, in the face front 6 supporting the tear strip 5, a cutout 7 passing through the film 3 and the strip 5.
  • This cut 7 has the general shape of an I, that is to say is composed of a vertical bar 7a, extending on either side of the tear strip 5, and two transverse bars 7b, parallel to the tear strip 5 and arranged on either side on the other, so as to delimit two tear-off tabs 9a, 9b.
  • This cutout 7 is positioned vertically, in relation to the position of the tear strip 5 which itself may be higher or lower or higher or lower, so as not to hide the inscriptions on containers 2 and legible in transparency through the film 3. It is positioned transversely in the interval 11 between two cylindrical containers, so that this interval forms a gripping space allowing the engagement of the index when the user wants open the load by tearing the envelope.
  • the tear is done by introducing the index between the slots 7a, 7b and bringing it back against the rear face of one of the two tear-off tabs 9a or 9b, to pinch this tab between the index finger and the thumb, before tearing by pulling the tab outwards away from the cutting.
  • the tongue has original two breaking primers which facilitate the tearing of the film and then allows, the tear strip 5, to play its normal tear function by its two edges longitudinal.
  • the containers 2a are constituted by parallelepipedic boxes which, joined edge to edge by the envelope 3 bundling, are provided, during their conformation, with local reserves 10, such as cut sides or inverted dihedrons.
  • the reserves 10 of two juxtaposed boxes form together and inside the burden, a gripping space necessary for the cutting and the passage of the index finger one or the other gripping the tear-off tabs 9a and 9b.
  • This installation comprises, downstream of a batching station, a shrink wrapping station and a station for laying a handle 4, not shown, a station B laying a tear strip and a station C for cutting.
  • item B is identical to that described in FR-A-2 731 406. It comprises above the trajectory of the burdens A, moved by a conveyor belt 12, continuously and in the direction of the arrow 13, a rotary plate 14 carrying several radial yokes 15. On each yoke, are articulated around a horizontal axis 16 two levers, namely with respect to the direction of rotation of the plate 14 defined by the arrow 17, an upstream lever 18 and a downstream lever 19. These two levers are provided, at one of their ends, rollers 20 and 22 suitable for cooperate with ramps 23 and 24 fixed above the tray by consoles 25. Each upstream lever 18 is extended, opposite its roller 20, by two rods parallel 26. Each has an extreme cylindrical bearing 27. The downstream lever 19 has, opposite its roller 22, an extension parallel to the rods 26 of the lever upstream 18, this extension comprising a lateral return 28 which can come into contact with pinching with the cylindrical surface 27 of the rod 26 which is downstream.
  • This device also includes means, not shown, for support a reel 30 of a strip 32, adhesive on its face 32a, and the means of guiding and actuating a reciprocating knife 33 arranged at the start, B1 in FIG. 4, to cut the strip 32 between the cylindrical surfaces 26 of the lever 18, then disposed in a vertical position.
  • the plate 14 is equipped with four sampling sets arranged at 90 ° from each other and is connected to means motors 34 capable of rotating it, by 90 ° fraction of a turn, each time a burden A is detected by means not shown.
  • a section of adhesive strip 32a extends transversely to the direction of movement of a load, represented by the arrow 13 in FIG. 4, on the one hand, between the upstream range 27 of the lever 18 of the station B1 and, on the other hand, the downstream range 27 of the lever 18 disposed at station B2. It's obvious that the space between these two spans is sufficient to let the burden pass, so that the latter takes in passing the section 32a of adhesive tape. By continuing its trajectory, the burden passes between two vertical brushes 35, arranged laterally to it and pressing the ends of the section of adhesive strip 32a on its lateral blanks.
  • the plate 14 pivots 90 °, which has for the effect of unwinding the strip 32, the end of which is pinched at station B1 between the return 28 and the bearing surface 27 of the downstream rod 26 of the lever 18, from station B1 to station B2 and, simultaneously release the levers 18 and 19 of the B2 station by bringing them into position horizontal by cooperation of their rollers 20, 22 with the fixed ramp 23.
  • the knife 33 sections at station B1 the strip section which has been unwound from the coil 30.
  • the burden A which leaves this device is therefore provided with a strip of tear 5 stuck on the external face of its front wall 6. It is transferred to station C the belt conveyor 40 of which is made up of two separate parallel bands 40a, 40b by a longitudinal interval 40c used for housing the means carrying out the cuts.
  • these means are constituted by a pallet 42 which is wedged in the middle on a horizontal transverse shaft 43 disposed between the two strands of the belt conveyor 40.
  • the pallet 42 is provided with a perforating finger 44 which projects from its face facing the back when the finger is in the perforation position.
  • This finger has the shape of an I, it's to say is composed of a vertical blade 44a and two transverse blades 44b joined at the ends of this blade.
  • each finger on the pallet is determined for that, when the pallet is in the vertical position, the active upper finger 44 is at the level of the tear strip 5 of the burden.
  • Pallet 42 is itself positioned transversely so that the finger 44 is opposite a gripping space 11 delimited between two cylindrical containers 2 or delimited by the reserves 10 formed in parallelepiped boxes 2a ( Figure 2).
  • the shaft 43 is linked in rotation to a motor means and to a wedging means now the pallet 42 in the perforation position until a burden has been applied against the active piercing finger.
  • the driving means and the timing means are constituted by a brake gearmotor 45, fed through a control unit 46 reacting to a sensor 47 detecting the passage of a burden AT.
  • the pallet 42 When stopped, as shown in FIG. 5, the pallet 42 is maintained in vertical position by the brake gear motor 45, so that the load A movement on the conveyor 40 is impaled on the perforating finger 44.
  • the brake is released and the gearmotor 45 is powered to rotate the pallet 42 and bring it into the horizontal position , shown in dashed lines in Figure 5, allowing free passage of the burden A.
  • the pallet 42 is straightened vertically, in its perforation position, waiting for a new load, and the brake is applied to ensure its setting in rotation.
  • This simple device is very easily integrated into an existing installation and makes it possible to obtain burdens whose tearing of the envelope poses no problem.
  • the installation shown in Figure 6 differs from the previous one by the causes the station B for removing the tear strip 5a to be arranged immediately after the training station for the batch of several containers 2 and upstream of a bundling F and heat shrink tunnel G and, possibly, upstream of the station, not shown, ensuring the deposit of the handle 4.
  • station B deposits a section of strip 5a, which is adhesive on both sides so that the side which is posterior to the direction of travel of the conveyor, ensures temporary bonding of the strip 5a on the front row of containers 2, while the adhesive placed on the anterior face of the strip 5a ensures the bonding of this strip on the internal face of the front wall 6 of the envelope 3a, heat-shrunk on the container batch.
  • item C for carrying out the cutout 7 is arranged after the heat shrinking station G the envelope 3a and, possibly, after the station for fitting the handle 4, not represented. Except for this difference, item C is identical to that described in reference to Figures 3 to 5.
  • This form of execution is interesting insofar as it uses better the tearing effect provided by the edges of the tear strip 5a, since this is inside the envelope and is pulled out to go through this envelope.
  • FIGS. 7 and 8 differs from that in FIGS. 4 and 5 by the arrangement of the pallet 42 carrying two perforating fingers 44. Indeed, its rotary shaft 43a is vertical and is disposed laterally to a conveyor band 48. This shaft is linked in rotation to a brake gearmotor 45, supplied through a control unit 46 reacting to a sensor 47.
  • the device which has just been described in the case of its application to a installation carrying burdens with tear strip 5 or 5a, also applies to installations carrying out burdens without a tear strip but using envelopes of tearable synthetic material.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
EP97203258A 1997-10-20 1997-10-20 Vorrichtung zum Anbringen eines Schnittes in die Umhüllung einer vorbeilaufenden Last Withdrawn EP0913330A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97203258A EP0913330A1 (de) 1997-10-20 1997-10-20 Vorrichtung zum Anbringen eines Schnittes in die Umhüllung einer vorbeilaufenden Last

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97203258A EP0913330A1 (de) 1997-10-20 1997-10-20 Vorrichtung zum Anbringen eines Schnittes in die Umhüllung einer vorbeilaufenden Last

Publications (1)

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EP0913330A1 true EP0913330A1 (de) 1999-05-06

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EP97203258A Withdrawn EP0913330A1 (de) 1997-10-20 1997-10-20 Vorrichtung zum Anbringen eines Schnittes in die Umhüllung einer vorbeilaufenden Last

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2818242A1 (fr) 2000-12-14 2002-06-21 Cefma Installation de fardelage avec pose integree de bande de dechirage

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2656273A (en) 1952-02-12 1953-10-20 Eastman Kodak Co Photographic developers containing diamino-propanol tetracetic acid
US2771385A (en) 1954-08-26 1956-11-20 Mid States Gummed Paper Co Pressure-sensitive and remoistening draw tape
US2837938A (en) 1957-03-07 1958-06-10 William L Spitzer Watchmaker's drill press for use with a lathe
GB1024059A (en) * 1964-03-13 1966-03-30 Ibm Improvements in and relating to objects having protective enclosures
US3273302A (en) * 1963-12-16 1966-09-20 Container Corp Method of forming shrink film package
US3403779A (en) 1966-10-14 1968-10-01 Reynolds Metals Co Opening device for package means
FR2728242A1 (fr) * 1994-12-16 1996-06-21 Beauzee Bernard Procede de revetement d'un groupe d'au moins un article avec un fil en materiau qui est applique et maintenu en tension contre au moins une face de ce groupe et installation comprenant des moyens pour la mise en oeuvre du procede
FR2731406A1 (fr) 1995-03-06 1996-09-13 Cefma Machine pour la mise en place de bandes adhesives sur la face d'un article

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2656273A (en) 1952-02-12 1953-10-20 Eastman Kodak Co Photographic developers containing diamino-propanol tetracetic acid
US2771385A (en) 1954-08-26 1956-11-20 Mid States Gummed Paper Co Pressure-sensitive and remoistening draw tape
US2837938A (en) 1957-03-07 1958-06-10 William L Spitzer Watchmaker's drill press for use with a lathe
US3273302A (en) * 1963-12-16 1966-09-20 Container Corp Method of forming shrink film package
GB1024059A (en) * 1964-03-13 1966-03-30 Ibm Improvements in and relating to objects having protective enclosures
US3403779A (en) 1966-10-14 1968-10-01 Reynolds Metals Co Opening device for package means
FR2728242A1 (fr) * 1994-12-16 1996-06-21 Beauzee Bernard Procede de revetement d'un groupe d'au moins un article avec un fil en materiau qui est applique et maintenu en tension contre au moins une face de ce groupe et installation comprenant des moyens pour la mise en oeuvre du procede
FR2731406A1 (fr) 1995-03-06 1996-09-13 Cefma Machine pour la mise en place de bandes adhesives sur la face d'un article

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2818242A1 (fr) 2000-12-14 2002-06-21 Cefma Installation de fardelage avec pose integree de bande de dechirage

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