EP0048656A1 - Vorrichtung für eine Maschine zum Öffnen, Überführen und Abschneiden thermoplastischer Schläuche in Hülsen zum Anbringen an Behältern - Google Patents

Vorrichtung für eine Maschine zum Öffnen, Überführen und Abschneiden thermoplastischer Schläuche in Hülsen zum Anbringen an Behältern Download PDF

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Publication number
EP0048656A1
EP0048656A1 EP81401404A EP81401404A EP0048656A1 EP 0048656 A1 EP0048656 A1 EP 0048656A1 EP 81401404 A EP81401404 A EP 81401404A EP 81401404 A EP81401404 A EP 81401404A EP 0048656 A1 EP0048656 A1 EP 0048656A1
Authority
EP
European Patent Office
Prior art keywords
mandrel
sheath
rollers
sleeves
sleeve
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Withdrawn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
EP81401404A
Other languages
English (en)
French (fr)
Inventor
Jacques Fresnel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR8020301A external-priority patent/FR2490590A1/fr
Priority claimed from FR8102808A external-priority patent/FR2499939A2/fr
Application filed by Individual filed Critical Individual
Publication of EP0048656A1 publication Critical patent/EP0048656A1/de
Withdrawn legal-status Critical Current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
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/13—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the preformed tubular webs being supplied in a flattened state
    • B65B9/14—Devices for distending tubes supplied in the flattened state

Definitions

  • the present invention relates to the field of equipment intended for making sheath sections or sleeves from a flat sheath made of heat-shrinkable plastic and for laying these sleeves around containers. It especially relates to a device for opening, transferring sheath cutting and then fitting sleeves in an automatic machine supplied with a flat continuous sheath of heat-shrinkable plastic, whether or not printed.
  • This apparatus comprises, around a hollow vertical mandrel, a set of stepped means making it possible to hold the mandrel in position, to automatically adjust the heights and cutting rates, to guide and expel the sleeves downwards and to ensure the laying around containers to be coated, circulating on a conveyor.
  • the object of the invention is to propose a machine for making and installing vertical sleeves based on the same general principle as the above-mentioned apparatus, but of simpler construction and of more accessible price. It particularly relates, in such a machine, to improvements to the vertical assembly of the floating mandrel by means of both simplified and more effective means of supporting the mandrel and driving the sheath first flat then expanded, and finally transfer and install sleeves cut in this sheath.
  • the mandrel is held in at least three sectors along its length and the downward entrainment of the plastic film is caused by the combination of the driving drive rollers - which also serve as a means main lift of the mandrel- and counter-bearing bearings integral with the mandrel itself.
  • these drive rollers for the counter-bearing bearings are driven by a motor at a speed and according to on-off times regulated by an electronic time delay which defines the suitable length of the sleeve to be cut.
  • the rollers are provided at their periphery with a rubber band of suitable hardness to prevent slipping or tearing of the film from the sheath as well as the downward shift of the suspended mandrel.
  • the head of the mandrel is integral with a support element called here conforming because it has the function of spreading or dilating progressively and continuously the walls of the flat sheath feed to the cylindrical section of the chuck head.
  • This conformator is a flat element whose section advantageously has the structure of an elongated hexagon so that the fold of the sheath (produced by sealing the superimposed walls of a plastic film) follows a point or bevel of the hexagon.
  • the height of this support element is calculated so as to allow the conical conformation of the sheath on a mandrel whose diameter is very close to that of the sheath.
  • the mandrel is produced with a grooved surface in order to avoid any sticking of the thermoplastic film by suction, static electricity or other phenomenon during the routing of the sheath along this mandrel.
  • the device or machine according to the invention is made completely autonomous and adapted to all types of packaging or receptacles so that this machine can operate immediately on any conveyor without special adaptation for synchronization.
  • the frame of the machine is integral, in its lower part, on the one hand with a cell wheel driven, by means of pinions and toothed belt, by means of a standard Maltese cross or system Fergusson type, said wheel allowing the automatic positioning of the container under the mandrel; and, on the other hand, an endless screw controlling the introduction of the containers from the conveyor to the interior of the cells of the wheel.
  • the device forms part, as the main member, of an automatic machine continuously supplied by a flat sheath of heat-shrinkable plastic and intended to carry out the successive operations of opening the sheath, transfer of the latter to a cylindrical element with speed programming, cutting the sheath into sections of predetermined length, depositing the latter around the container to be sleeved then heat shrinking with a heating device mounted for example on an endless conveyor.
  • the sheath supply and heat shrinking means are not part of the invention and can be, for example, those described in the European patent published under the number 0 000 851.
  • the plastic sheath can advantageously be subjected to perforation or precut by the same means as those recommended in the aforementioned patent.
  • the vertical assembly essentially comprises the following members: a shaper 1 fixed on the head of a floating mandrel 2, solid in its upper part up to the hollowed out or narrowed area 2 'then hollow in its lower part 2 "which is provided with a movable piston 3 at the end of which is fixed an indentation 4 intended to come to cap the head of the object to be sleeved 5.
  • the piston has a mild steel head and its movement is controlled by induction by means of an electromagnet coil which surrounds the mandrel (not shown in the drawing).
  • This piston-impression system constitutes a means of centering and guiding the film during the fitting of the sleeve.
  • the vertical assembly comprises in addition, at the lower end of the mandrel 2 a device 6 for cutting the sheath into sleeves or sections of known type, for example that described in the aforementioned European patent.
  • the system for supporting the mandrel 2 is schematically represented at the level of the recess 2 '. It includes driving drive rollers 7, 7 'which penetrate inside the narrowing of the mandrel and are in contact with idler counter-bearings 8, 8' mounted inside the mandrel and whose circular sector projecting from the narrowing 2 'is tangential to the generatrix of the mandrel 2.
  • the rollers 7, 7' are driven by an assembly shown in dotted lines and comprising a series of rollers 9, 10, 11 driven by belt by the motor 12.
  • rollers 7, 7 ′ are covered on their periphery with a rubber which is hard enough to prevent any crushing during the pressure with the bearings 8, 8 ′ and thus avoid the sliding of the plastic film (or sheath) as well as the offset down the recess 2 'of the mandrel.
  • a rubber which is hard enough to prevent any crushing during the pressure with the bearings 8, 8 ′ and thus avoid the sliding of the plastic film (or sheath) as well as the offset down the recess 2 'of the mandrel.
  • Each bearing 7, 7 '... can be single or double.
  • the speed as well as the rotation time of the drive rollers 7, 7 ′ are regulated by an electronic delay which makes it possible to define exactly the length of sheath corresponding to a sleeve to be deposited on the object 5 after cutting 6.
  • the mandrel 2 In addition to the lifting means described above, the mandrel 2 must be kept in constant and rigorous centering with respect to the laying axis XX 'of the sleeve on the container; it is also advisable to avoid any pivoting of this mandrel during work. To obtain this result, it was mounted in contact with the mandrel 2: a series of rollers 13 near the thinned head of the mandrel then another series of rollers 14 in the lower part of the mandrel. Each series is composed for example by a pair of rollers opposite with respect to the axis of the mandrel and each arranged in a plane perpendicular to that of the drive rollers 7, 7 '. In addition, another series of rollers 15, 15 '(for example two pairs) is mounted in abutment on the upper end of the shaper 1 in order to perfect the centering of the mandrel and to ensure a good pinching of the plastic sheath 16.
  • the conformator is a flat element, of small thickness, with walls slightly conical towards the bottom and the section of which is preferably hexagonal so that the fold of the plastic sheath can be inserted , during the transfer, along the generator of the bevel 17 (or tip) of the hexagon.
  • the former 1 fixed on the head of the mandrel 2 has a height such that the plastic sheath 16 can expand sufficiently and reach the thinned head of the mandrel with an opening corresponding substantially to the diameter of the latter.
  • the upper end 18 of the shaper 1 has a width slightly less (for example a few tenths of a mm) than the flat width of the plastic sheath.
  • the mandrel 2 has a grooved or striated surface over its entire periphery so as to facilitate the sliding of the plastic film during the transfer operation.
  • the mandrel has a cylindrical section.
  • the shape may be different, for example: elliptical, rectangular, square or variants of these structures.
  • the vertical assembly automatically provides: the opening of the plastic sheath 16, the transfer of the latter along the guided and centered mandrel 1, with the sheath being driven by the rollers 7, 7 ′ then the cutting of the sheath into sleeves of predetermined length and the placing of the latter on the containers 5 with rigorous and permanent centering thanks to the assembly of the piston 3 and of the associated imprint 4.
  • the cutting operation by means 6 can be done when a sleeve has just been deposited on the corresponding container.
  • the height of the shrinkage 2 ′ of the mandrel 2 must be large enough to give "softness" to the plastic film so as to avoid tearing. In practice, this height must be at least equal to the section of the mandrel.
  • Figures 3 to 5 illustrate an improvement to make the sleeve fitting device completely autonomous and suitable for all types of receptacles, with adaptation to any type of conveyor.
  • the lower frame 1.9 of the machine is integral with a wheel 20 formed by a series of cells 21, single or double, in which will come fit the containers to be sleeved (the latter and the conveyor are not shown in the figures).
  • the wheel 20 is driven by a toothed belt 22 and pinions 23, 24 by means of a system 25 of the Maltese cross type.
  • the pitch of the wheel can be modified by simply changing the pinions 23, 24.
  • the wheel 20 is adjustable in height according to the type of receptacle to be sleeved.
  • the frame of the machine also supports an endless screw 26 driven by means of belt 27 and pinions 28, 29 by the rotary shaft 30.
  • This endless screw controls, in a manner known per se, the introduction of the containers into each of the cells 21, its originality consisting in the fact that it is made integral with the laying machine according to the invention.
  • the same shaft 30 can drive, at the outlet of the machine, by means of belt 31 and pinions 32, 33, a series of rotary brushes 34, 35, with variable spacing, which drive the sleeve from top to bottom around its receptacle and therefore facilitate the positioning of this sleeve, in particular in the case where only a part of the container must be covered by the latter.
  • the arrowed line 36 in FIG. 3 indicates the direction of movement of the containers on the conveyor, which can be of any type.
  • the cell wheel 20 is indexed step by step either by the abovementioned Maltese cross (item 25) or by an equivalent Fergusson type system. This indexing allows the positioning of the container to be sleeved rigorously under the mandrel and in continuity therewith.
  • a torque limiter can be provided causing the wheel drive to be triggered, this in order to guard against any risk resulting from improper introduction of the container into the wheel; such a mechanical trip also has the effect, via a contactor, of instantly stopping the machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
EP81401404A 1980-09-22 1981-09-10 Vorrichtung für eine Maschine zum Öffnen, Überführen und Abschneiden thermoplastischer Schläuche in Hülsen zum Anbringen an Behältern Withdrawn EP0048656A1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8020301 1980-09-22
FR8020301A FR2490590A1 (fr) 1980-09-22 1980-09-22 Dispositif pour machine d'ouverture, transfert de decoupe de gaine thermoplastique en manchons pour pose autour de recipients
FR8102808 1981-02-13
FR8102808A FR2499939A2 (fr) 1981-02-13 1981-02-13 Machine d'ouverture, transfert et decoupe de gaine thermoplastique en manchons pour pose autour de recipients

Publications (1)

Publication Number Publication Date
EP0048656A1 true EP0048656A1 (de) 1982-03-31

Family

ID=26221990

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81401404A Withdrawn EP0048656A1 (de) 1980-09-22 1981-09-10 Vorrichtung für eine Maschine zum Öffnen, Überführen und Abschneiden thermoplastischer Schläuche in Hülsen zum Anbringen an Behältern

Country Status (3)

Country Link
EP (1) EP0048656A1 (de)
ES (1) ES8207069A1 (de)
PT (1) PT73693B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0763498A1 (de) * 1995-09-15 1997-03-19 PDC International Corporation Verfahren und Vorrichtung zum Aufbringen von Bändern auf Gegenstände
WO1999059871A1 (fr) 1998-05-20 1999-11-25 Sleever International Company Dispositif de pose de manchons sur des objets en defilement
CN112477184A (zh) * 2020-11-12 2021-03-12 万安协讯电子有限公司 一种硬盘数据线生产套管设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2623673A (en) * 1949-08-06 1952-12-30 John H Holstein Banding machine
FR1371189A (fr) * 1963-03-15 1964-09-04 Bauer Eberhard Procédé et dispositif de fabrication, de remplissage et de fermeture d'emballages en sacs
DE1912945A1 (de) * 1969-03-14 1970-09-24 Netzsch Maschinenfabrik Vorrichtung zum Umhuellen von Packstuecken mit einer Schlauchfolie
FR2316126A1 (fr) * 1975-07-04 1977-01-28 Fujio Masaaki Procede et appareil pour encapsuler un conteneur avec un element d'enveloppement tubulaire
FR2395821A1 (fr) * 1977-06-27 1979-01-26 Fuji Seal Ind Co Ltd Machine a poser des manchons de scellement
FR2425983A1 (fr) * 1978-05-18 1979-12-14 Anidriti Oreste Procede et appareil pour former et remplir des emballages obtenus a partir d'un materiau tubulaire en bobine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2623673A (en) * 1949-08-06 1952-12-30 John H Holstein Banding machine
FR1371189A (fr) * 1963-03-15 1964-09-04 Bauer Eberhard Procédé et dispositif de fabrication, de remplissage et de fermeture d'emballages en sacs
DE1912945A1 (de) * 1969-03-14 1970-09-24 Netzsch Maschinenfabrik Vorrichtung zum Umhuellen von Packstuecken mit einer Schlauchfolie
FR2316126A1 (fr) * 1975-07-04 1977-01-28 Fujio Masaaki Procede et appareil pour encapsuler un conteneur avec un element d'enveloppement tubulaire
FR2395821A1 (fr) * 1977-06-27 1979-01-26 Fuji Seal Ind Co Ltd Machine a poser des manchons de scellement
FR2425983A1 (fr) * 1978-05-18 1979-12-14 Anidriti Oreste Procede et appareil pour former et remplir des emballages obtenus a partir d'un materiau tubulaire en bobine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0763498A1 (de) * 1995-09-15 1997-03-19 PDC International Corporation Verfahren und Vorrichtung zum Aufbringen von Bändern auf Gegenstände
WO1999059871A1 (fr) 1998-05-20 1999-11-25 Sleever International Company Dispositif de pose de manchons sur des objets en defilement
CN112477184A (zh) * 2020-11-12 2021-03-12 万安协讯电子有限公司 一种硬盘数据线生产套管设备

Also Published As

Publication number Publication date
PT73693A (fr) 1981-10-01
PT73693B (fr) 1982-11-17
ES505667A0 (es) 1982-09-01
ES8207069A1 (es) 1982-09-01

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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