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EP0569615A1 - Procédé et machine pour envelopper des articles dans un film étirable - Google Patents

Procédé et machine pour envelopper des articles dans un film étirable Download PDF

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Publication number
EP0569615A1
EP0569615A1 EP92108294A EP92108294A EP0569615A1 EP 0569615 A1 EP0569615 A1 EP 0569615A1 EP 92108294 A EP92108294 A EP 92108294A EP 92108294 A EP92108294 A EP 92108294A EP 0569615 A1 EP0569615 A1 EP 0569615A1
Authority
EP
European Patent Office
Prior art keywords
film
article
clamp
stretching
dispenser
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Withdrawn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
EP92108294A
Other languages
German (de)
English (en)
Inventor
Carlo Nicoletti
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.)
AWAX Progettazione e Ricerca SRL
Original Assignee
AWAX Progettazione e Ricerca SRL
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 AWAX Progettazione e Ricerca SRL filed Critical AWAX Progettazione e Ricerca SRL
Priority to EP92108294A priority Critical patent/EP0569615A1/fr
Publication of EP0569615A1 publication Critical patent/EP0569615A1/fr
Withdrawn legal-status Critical Current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
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/54—Wrapping by causing the wrapper to embrace one end and all sides of the contents, and closing the wrapper onto the opposite end by forming regular or irregular pleats
    • 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
    • B65B57/00—Automatic control, checking, warning, or safety devices

Definitions

  • Processes and machines which submit the stretchable film to a pre-stretching before pushing the articles thereagainst, so as to take advantage to a maximum degree of the stretchability of the film being used.
  • These procedures permit to wrap articles of different sizes within a wide range, without changing the width of the film being used, and they also permit to attenuate the differential tensions of the film in contact with the product, thus ensuring a better resistance of said film and a more delicate treatment of the packaged article.
  • a machine operating according to this principle is described, for example, in document US-A-3 967 433.
  • the object of this invention is to improve these types of processes and machines, and to obtain the following advantages:
  • the above and other advantages are achieved by the following process:
  • the film is unreeled from the feeding means and is spread out horizontally above a lifting device which carries the article to be wrapped, with a length dimension which is proportionate to the size of the article to be wrapped, and as a function of said length said film is stretched to a maximum extent in the longitudinal direction.
  • the longitudinally pre-stretched length of film is then pre-stretched to a maximum extent in the transverse direction, as a function of its original dimensions, and during this step the longitudinal pre-stretching is suitably attenuated, to permit the required transverse pre-stretching of the film, without creating anomalous tensions in the latter.
  • both the longitudinal and transverse pre-stretching are attenuated proportionally to the dimensions of said article, or as a function of the original dimensions of the film, to ensure the creation of a firm wrapping exempt from anomalous tensions and which does not submit the article to any harmfull stress.
  • the movements of the means controlling the edges of the wrapping film, during the pre-stretching steps and during the article-wrapping step, are originated from electrical motors controlled by a computer which is programmed by means of manual inputs relating to the length of the film being used and the characteristics of the article to be wrapped (normal, soft, very delicate, etc.), and by means of opto-electronic sensors which automatically detect the dimensions of the article to be wrapped while the latter is transferred onto the lifting device.
  • a similar logic system is used for the folding devices and for the article-ejecting pusher in the last step of the wrapping cycle.
  • numerals 1 and 2 indicate the consecutive flights of the belt-conveyors which feed and arrange centrally on the lifter 3 the articles P to be wrapped, which are introduced in single file and resting substantially on the right-hand side of the conveyor 1 (see below).
  • the lifter 3 comprises a plurality of vertical and parallel frames 9 provided at the top with crowned, overturnable supports 10, normally in a vertical position, with which said lifter is placed initially below the imaginary plane containing the upper flight of the conveyor 2, so as to avoid interfering with the oncoming article P.
  • the latter is raised to introduce said article into the wrapping station of the machine.
  • the stretchable film is unreeled from a roll 11 which is supported so as to be rotatable about its axis by a pair of parallel rollers 12, one of which is actuated by a geared motor 13 which causes the rotation of said roll in the film-unreeling direction.
  • the film 14 unreeled from the roll is guided on at least one pair of parallel idle rollers 15 and, for example, on a buffer roller 16 which, in combination with the sensor 17, constitute a device which cyclically activates the geared motor 13 whereby the film will be fed to the wrapping station with no remarkable tensioning.
  • the film 14 is gripped at its end by a dispensing clamp or dispenser 18 (see also Figure 17) which is parallel to the axis of the roll 11 and comprises a pair of parallel rollers 19 and 20, the roller 19 being coated with rubber and rotatably supported at the ends by the frame 21 of the dispenser and its rotation is normally prevented by an axial electro-magnetic brake 22.
  • the roller 20 is made of steel and is supported via a unidirectional rotation clutch, by a frame 23 pivoted at 24 to the frame 21 and urged by a resilient means 25 which maintain the roller 20 in engagement with the roller 19.
  • the film 14 is guided partly on the roller 20 and partly on the roller 21 and upon leaving the latter is laid down on the top portion 121 of the frame 21 which has a comb-like configuration, is coated with felt or other suitable material and on which said film is retained by a comb-like member 123 secured to the frame 23 and, if desired, also coated with suitable material on the portions designed to contact the film, so as to permit the film to slide and to avoid any damage thereto.
  • the levers 29 are provided with an extension beyond the fulcrum, which is directed downwards and is provided with a ferromagnetic plate 31 at the end thereof.
  • the plate 31 is in front of an electro-magnet 32 which is secured to the frame 21 of said dispenser.
  • the blade 28 is in its upper active position, as shown by dot-and-dash lines, the lower extension of the laver 29 is in abutment against a stop 33.
  • the dispenser 18 is movable on rectilinear and horizontal guides and is controlled by driving means which transfer it from the rest position shown in Figure 1 by solid lines to the position which is shown by broken lines wherein said dispenser is arranged with its comb on the imaginary vertical plane Q that is in line with the bank of sensors 7.
  • a clamp 34 comprising a single upper jaw 35 and a plurality of side-by-side lower jaws 36 interfulcrumed on a common shaft 37 and whose portion directed towards the dispenser has a comb-like configuration to become interleaved in the spaces of the comb 121-123 of said dispenser.
  • each jaw 36 is provided with two teeth and is urged by elastic means 38 ( Figure 17A) away from the upper jaw 35.
  • the lower surface of the jaw 35 is suitably roughened, while the upper faces of the teeth of said jaws 36 is coated with rubber or other suitable material.
  • a stop 39 preferably made of yieldable resilient material.
  • the rear arm of the jaws 36 carries below a small disc 40 of ferromagnetic material which, when said jaws are in the closed-clamp position shown by broken lines, is closely spaced from a respective electro-magnet 41 which is secured to the frame member 42 of said clamp.
  • Said frame 42 similarly to the frame 21 of the dispenser 18 is movable on rectilinear and horizontal guides and is controlled by driving means which transfer it from the rest position shown in Figure 1 by solid lines to the position shown by broken lines wherein the clamp co-operates with the dispenser at the imaginary vertical plane Q.
  • the electromagnetic brake 22 of the roller 19 of the dispenser 18 is de-energized to let said roller rotate freely.
  • the dispenser 18 and clamp 34 move away from each other as from Figure 3.
  • the rollers 19 and 20 of the dispenser let the film unreel freely, while the clamp 34 draws from the feeding means a length of film of the same length as the stroke traveled by said clamp.
  • the computer When the computer detects that the length of the unreeled film is sufficient for the dimensions of the article to be wrapped, it causes the energization of the electro-magnetic brake 22 which stops the rotation of the roller 19, whereby the dispenser also operates as a clamp, in that the film cannot slide on said rubber roller 19.
  • the dispenser 18 and clamp 34 go on moving away from each other to submit the length of film therebetween to the maximum pre-stretching in the longitudinal direction.
  • the extent of this final portion of the stroke of the dispenser and clamp away from each other is also calculated automatically by the computer 6 on the basis of the length of the portion of film to be stretched and of the nominal stretching which said film can undergo.
  • Figure 4 shows diagrammatically the relative position of the dispenser 18 and the clamp 34 on completion of the longitudinal pre-stretching of the length of film intended to wrap the article.
  • clamps 44-45 which are disposed symmetrically of the central plane Q shown in Figure 1 and at the same level as the film, so as to be able to act thereon.
  • the clamps 44 and 45 are controlled by means for horizontal and rectilinear displacement to be mutually moved towards and away from each other, and said clamps comprise one respective stationary upper jaw having pivoted thereto at least one lower jaw.
  • the side clamps 44 and 45 are in the most spaced apart position and they are opened, as from Figures 2 and 3, to avoid interfering with the film, the dispenser 18 and the clamp 34.
  • the side clamps 44 and 45 are moved towards each other to cover an intermediate portion of the longitudinal edges of the pre-stretched length of film, as shown in Figure 4, whereafter said side clamps are closed to clamp the film and, as shown the successive Figure 5, at least one of said clamps is moved away to submit the film to the maximum transverse pre-stretching (see below).
  • the invention contemplates that during the operative movement of the clamp 45 in that direction, the longitudinal pre-stretching is suitably attenuated with a suitable movement of the dispenser 18 and clamp 34 towards each other, as shown in Figure 5.
  • the lifter 3 is raised, as from Figures 6 and 9.
  • the further ascent of the lifter will occur automatically together with a proportional self-centering movement of the dispenser 18 and clamp 34 towards each other and with a proportional movement of the side clamps 44-45 towards each other with displacement of only the clamp 45 (or also of the clamp 44 if the latter had previously pre-stretched the film transversely), whereby during the ascent of the article the condition of the wrapping film will remain substantially constant and unchanged with respect to the previous pre-stretching conditions.
  • These movements are controlled by the computer 6 on the basis of the size of the article to be wrapped.
  • the lifter 3 terminates its upward stroke when the bottom of the article is substantially co-planar with, or just above, the folding members which shall spread out the flaps of the length of wrapping film over the bottom of said article. Since the wrapped article will get out from the side adjacent the side clamp 44 (see below), we designate as side flaps of the wrapping film, the flaps that are supported by the dispenser 18 and clamp 34, and as rear and front flaps the flaps that are supported by the clamps 45 and 44, respectively.
  • the machine according to the invention is provided with a pair of side folders 46-47 arranged above the dispenser and respective clamp, parallelly thereto and connected to means for carrying them towards and away from each other.
  • the operative rounded edges 146 and 147 of the side folders have a similar and opposed configuration, such as to effect a remarkable folding of the side flaps at the front flap supported by the clamp 44 without interfering therewith and which progressively decreases towards the rear flap supported by the clamp 45.
  • the rear folder 48 is arranged above the side folders and is connected to means for transferring it horizontally, below the article, by a displacement normally to that of the side folders.
  • the front side of the folder 48 is rectilinear and is defined by an idle roller 49.
  • the side folders and the rear folder operate with such a sequence as to cause the crossing and partial overlapping of the side flaps and the rear flap, substantially at the diagonals of the bottom of the article-supporting tray, while at due time the dispenser 18 and clamp 34 move towards each other, the wrapping film is severed off the dispenser 18 by the action of the cutting blade 28 and is released from the clamp 34, while the rear clamp 45 moves further towards the article and then opens.
  • Figure 10 shows the first operative step of the side folders 46-47 with the simultaneous movement of the dispenser 18 and clamp 34 towards each other.
  • the wrapped article is removed by any suitable means (see below) and the roller-path is returned to the inclined position for a new cycle.
  • the rear folder is returned to the rest condition and the clamp 45 is also returned to the initial position, together with the pusher 53.
  • the clamp 44 is also moved away either by its own means or by the co-operation with a cam which is carried by either the clamp 34 or by the dispenser 18 (see below). Regardless of the size of the article to be packaged successively, the dispenser 18 and clamp 34 stand still in the position they had at the end of the preceding cycle ( Figure 8) and they begin the new cycle from this position ( Figure 2).
  • the conveyor 54 comprises a steel rope 59 guided around an idle pulley 60 arranged on the adjustable shaft 55 and secured at the ends thereof to the opposite faces of a driving drum 61 which is keyed on the powered shaft 56, after said rope has been suitably turned around on the circumference of said drum.
  • the ends of the rope are provided with small heads 62-63 added and welded thereto.
  • the head 62 which is supposed to be the leading head, is accommodated, for example, in a recess formed in the upper face of the driving drum 61 and the rope 69 originating from said head is guided around tangentially on the groove of the drum with a fraction of turn and then leaves therefrom to be guided around the driven pulley 60 wherefrom said rope is returned tangentially onto the side surface of the driving drum, below the initial point mentioned above, and said rope is wound with a plurality of turns around said drum, the total length of said turns determining the capacity of longitudinal displacement of said rope-type conveyor.
  • the trailing head 63 of the rope is accommodated in a recess formed in the lower face of the drum 61.
  • each frame 9 has a fork-like configuration to pivotably support a crosspiece 70 provided on at least one end thereof with a depending lug 71 connected to a tension spring 72 secured to the frame at 73.
  • Said spring maintains the upwardly-directed position of the protrusions 74 provided on the upper side of the crosspiece 70 and having pivoted thereon - on horizontal pivots 75 orthogonal to the axis of oscillation of said crosspiece 70 - the crowned supports 10 coated with rubber which constitute the emerging portion of the lifter, capable of supporting the article during the wrapping step.
  • the supports 10 will react resiliently, oscillating on the longitudinal axis of the crosspiece 70.
  • each support there is an axial blind recess accommodating a spring and a ball which is urged by said spring to frictionally engage the contour of the protrusion 74, said contour being curved to permit the support 10 to be overturned towards the center of the lifter when, during the article-wrapping step, the side folders become operative. Since the supports 10 would tend to remain directed towards the center of the lifter after being oscillated on the pivots 75, the arrangement is such that the supports will be returned to the correct orientation upwards when the lifter 3 is lowered and brings the previously overturned supports to interfere with studs 76 arranged on the sides of the guides 77 on which the belts of the article feeding conveyor 2 slide.
  • Numeral 78 indicates the electronically controlled geared motor which through the circuit 8 is connected to the computer 6 of Figure 1.
  • Figures 20 and 21 show that the body 42 of the clamp 34 for unreeling the film from the dispenser is secured, at the end disposed on the side of the machine from which the wrapped article is discharged, to a carriage 79 which slides on a horizontal profiled guide 80 which is orthogonal to said clamp and is secured to the frame 67 of the machine.
  • the other end of the body of the clamp is provided with small rollers 81 which roll on a guide 82 arranged on one side of the machine frame 67.
  • Figure 20 also shows the carriage 79' of the dispenser, which slides on an extension of the same guide 80 which supports the carriage 79 of the unreeling clamp 34.
  • the power system 154 of the same type as that at 54 in Figure 18.
  • the carriages 79-79' are connected to the two flights of the rope-type conveyor 59 so as to be actuated with the required self-centering movement.
  • 83 indicates the profiled guide on which the ends of the side folders 46-47 slide by means of grooved rollers 84.
  • the numeral 254 indicates the power system of the same type as that at 54 in Figure 18, which controls the self-centering actuation of the side folders which are connected to the two flights of the rope-type conveyor 59.
  • FIGS. 20 and 21 also show the clamp 44 comprising a stationary upper jaw 85 having pivoted thereto at 86 a lower jaw 87 which is urged away from the upper jaw by a resilient means.
  • the upper jaw has a lower roughened face and the lower jaw has a top side which is coated with a resilient yieldable material.
  • the upper jaw has a depending projection 88 connected to the end of a pair of horizontal, parallel rods 89 directed away from the wrapping station and supported, through axial bearings, by the parallel sides of a structure 90 having a "U" configuration in plan view and secured at its ends to the frame 67 of the machine.
  • the rods 89 are passed completely through the structure 90 and are interconnected at their rear ends by a crosspiece 91 which is provided centrally with a small vertical-axis roller 92 co-operating with the outer contour 93 of a cam 94 secured to the carriage 79' of the clamp 34, in such a position whereby the clamp 44 shall be retracted before interferring with the dispenser/clamp assembly 18-34 being transferred towards the central plane Q for gripping and unreeling the film.
  • the projection 88 of the body of clamp 44 has secured thereto an end of two further rods 95 which are parallel to, and on the inner side of, the rods 89, which are passed through holes 96 in the crosspiece of the structure 90 and which are surrounded by respective springs 97 acting between said crosspiece and a shoulder 98 carried by each rod 95 and which may be adjusted by means of screws 99.
  • the springs 97 urge the clamp 44 towards the article-wrapping station and, therefore, ensure a correct co-operation between said roller 92 and cam 94.
  • the action of said springs also affects the force by which the lower jaw of the clamp 44 is urged against the upper jaw in gripping the film.
  • clamp 44 if also the clamp 44 must be pre-set to effect a transverse pre-tensioning of the film, said clamp will be actuated by a power system of the same type as that of Figure 18 and will be provided with an electro-magnet which keeps it closed when it moves away from the mechanical stop 101 which has caused it to close.
  • the numeral 102 indicates the profiled guide whereon the carriage 103 slides under the action of a power system 354 of the same type as shown in Figure 18 and which overhangingly supports the rear folder 48-49.
  • Said clamp comprises, at the centerline of the wrapping station, a stationary jaw 106 which is arranged above the film to be tensioned and which has pivoted posteriorly thereof, on a shaft 107, the lower jaw 108 secured to said shaft which, in turn, is rotatably supported by the structure carrying said upper jaw and which, as shown in the detail of Figure 22, protrudes from the outer side of the carriage 105 and carries at its end an upwardly directed lever 109 provided with a small roller 110.
  • a spring 111 urges the lower jaw to close and keeps said roller 110 against the horizontal rectilinear guide 112 ( Figures 22-23) which constitutes the longer movable side of a double articulated parallelogram arranged parallel to the guide 104.
  • the parallelogram comprises a double stationary beam 113 having inter-fulcrumed thereto at 114-114' equal links 115-115' whose lower ends are pivoted at 116-116' to the guide 112 and whose upper ends are interconnected by means of a tierod 117.
  • the link 115 is connected to a tension spring 118 which is anchored to the beam 113, while the other link 115' is connected by means of a tierod 119 to a rectilinear motion actuator 120, e.g. an electro-magnet.
  • the double parallelogram is shown by broken lines and by solid lines, corresponding to the opened condition and closed condition of the clamp 45.
  • the article arriving onto the roller-path 51 therefore, is not affected by the presence of the belts 122.
  • the outer-path is lowered with its outer portion, the wrapped article thereon is transferred onto the belts of the conveyor 122 which is powered by the unit 132 and which moves away the wrapped article towards an optional station where the flaps of the wrapping film are sealed, according to any known solution.
  • the sealing of the wrapping-film flaps is effected while the article is travelling on the first portion of the roller-path 51 (the one directed towards the wrapping station), suitably modified for this purpose, e.g. by means of a conveyor made of teflon or other suitable material, sliding in contact over a heated plate.
  • the presser 50 shown in the drawings is pivotable on the fulcrum 126 ( Figure 21) and is directed with its free end in the direction of discharge of the article from the wrapping station.
  • the numerals 127-128-129-130 indicate the circuits interconnecting the computer 6, respectively, to the power units for the dispenser 18, clamp 34, clamp/pusher assembly 45-53 and side folders.
  • the various driving units can be controlled both with a variable stroke depending on the size and characteristics of the article to be wrapped, and with accelerations and decelerations as required for a correct and reliable operation of the various operating members of the machine.
  • the numeral 131 indicates diagrammatically the input into the computer for the variables concerning the characteristics of the article to be wrapped and the width of the film being used.
  • the start command is followed by a first manual input for selecting the characteristics of the package to be wrapped, and by an additional input concerning the width of the film being used.
  • the article or package (P) is detected by the opto-electronic sensors (4-5) arranged on the feeding conveyor (1-2), is synchronized with the preceding package and, if accepted, moves on towards the lifter (3).
  • the feeding conveyor reverses its rotation and the package is ejected and the inconvenience is signalled.
  • the computer (6) controlling the machine has received the information on the characteristics of the film being used, characteristics and dimensions of the article, has processed these functions and controls the dispenser (18) and respective clamp (34) to make them unreel a portion of film of suitable length and submit said portion of film to the required longitudinal pre-stretching. Thereafter, the transverse pre-stretching is attenuated.
  • the article or package is lifted against the pre-stretched film while the tensioning of the latter is kept substantially constant by suitably moving the dispenser (18) and clamps (34-35) which support the flaps of said film.
  • the side folders (46-47) and the rear folder (48-49) come into action, while the dispenser (18) and respective clamp (34) move further towards each other and while the rear clamp (4() approaches the front clamp (44), the clamps being timely opened, excepted the front clamp, and the film being cut for the separation from the dispenser.
  • the lifter is returned to the lower position for repeating the cycle, while the package is ejected from the wrapping station and the side front clamp (44) timely releases the last flap of the film.
  • the various operating components are returned to the rest position and the cycle is repeated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
EP92108294A 1992-05-15 1992-05-15 Procédé et machine pour envelopper des articles dans un film étirable Withdrawn EP0569615A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP92108294A EP0569615A1 (fr) 1992-05-15 1992-05-15 Procédé et machine pour envelopper des articles dans un film étirable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92108294A EP0569615A1 (fr) 1992-05-15 1992-05-15 Procédé et machine pour envelopper des articles dans un film étirable

Publications (1)

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EP0569615A1 true EP0569615A1 (fr) 1993-11-18

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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0716021A1 (fr) * 1994-12-05 1996-06-12 A.W.A.X. PROGETTAZIONE E RICERCA S.r.l. Procédé et appareil pour sauvegarder les caractéristiques élasto-plastiques d'un film extensible pendant l'emballage de produits
US5528881A (en) * 1993-03-24 1996-06-25 A.W.A.X. Progettazione E Ricerca S.R.L. Process and machine for wrapping products with stretchable film, and wrapping formed by this process
US5603198A (en) * 1993-10-19 1997-02-18 A.W.A.X. Progettazione E Ricerca S.R.L. Process and apparatus for wrapping articles with stretchable film
WO1998013262A1 (fr) * 1996-09-24 1998-04-02 A.W.A.X. Progettazione E Ricerca S.R.L. Procede et equipement pour envelopper des produits avec un film etirable
EP0890508A1 (fr) * 1997-03-17 1999-01-13 Kabushiki Kaisha TEC Moyens de préhension d'une feuille d'emballage ainsi que machine et procédé pour emballer au moyen de ladite feuille
WO2000002777A1 (fr) * 1998-07-08 2000-01-20 Ulma C Y E, S. Coop. Machine a envelopper les produits avec un film extensible
WO2004000652A1 (fr) * 2002-06-19 2003-12-31 A.W.A.X. Progettazione E Ricerca S.R.L. Dispositif de reglage automatique du dispositif presseur dans une machine d'emballage sous film etirable
EP1431187A3 (fr) * 2002-12-20 2005-08-10 Rovema Verpackungsmaschinen GmbH Machine d'emballage et procédé pour régler une machine d'emballage
EP1273431A4 (fr) * 2000-04-14 2006-11-08 Ishida Seisakusho Dispositif et procede d'emballage a film superieur soude
WO2009148965A3 (fr) * 2008-05-29 2010-01-28 Atlantic Corporation Systèmes pour surveiller et commander l'utilisation de matériaux
EP3098172A1 (fr) * 2015-05-29 2016-11-30 Bizerba GmbH & Co. KG Appareil d'emballage
EP3187425A1 (fr) * 2015-12-30 2017-07-05 Bizerba SE & Co. KG Procede destine au fonctionnement d'une machine d'emballage
CN113165758A (zh) * 2018-09-04 2021-07-23 德尔塔帕克有限公司 包装机及产品包装方法
CN113200169A (zh) * 2021-03-18 2021-08-03 广西壮族自治区农业科学院 气调包装装置
JP2023097678A (ja) * 2021-12-28 2023-07-10 株式会社寺岡精工 包装装置及びコンピュータプログラム
CN118543528A (zh) * 2024-07-25 2024-08-27 云南省林业和草原科学院 一种思茅松花粉用制备装置以及使用方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2246450A1 (fr) * 1973-10-05 1975-05-02 Ampaglas Spa
FR2340855A1 (fr) * 1976-02-11 1977-09-09 Pittacus Sa Machine pour l'emballage d'articles sous film extensible en matiere synthetique souple
EP0092760A2 (fr) * 1982-04-26 1983-11-02 HOBART CORPORATION (a Corporation of Delaware) Système de commande d'enveloppement pour une machine d'enveloppement d'un film
EP0170850A2 (fr) * 1984-08-10 1986-02-12 Hobart Corporation Tirage de film étiré pour machine d'enveloppement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2246450A1 (fr) * 1973-10-05 1975-05-02 Ampaglas Spa
FR2340855A1 (fr) * 1976-02-11 1977-09-09 Pittacus Sa Machine pour l'emballage d'articles sous film extensible en matiere synthetique souple
EP0092760A2 (fr) * 1982-04-26 1983-11-02 HOBART CORPORATION (a Corporation of Delaware) Système de commande d'enveloppement pour une machine d'enveloppement d'un film
EP0170850A2 (fr) * 1984-08-10 1986-02-12 Hobart Corporation Tirage de film étiré pour machine d'enveloppement

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5528881A (en) * 1993-03-24 1996-06-25 A.W.A.X. Progettazione E Ricerca S.R.L. Process and machine for wrapping products with stretchable film, and wrapping formed by this process
US5595042A (en) * 1993-03-24 1997-01-21 A.W.A.X. Progettazione E Ricerca S.R.L. Process and machine for wrapping products with stretchable film, and wrapping formed by this process
US5603198A (en) * 1993-10-19 1997-02-18 A.W.A.X. Progettazione E Ricerca S.R.L. Process and apparatus for wrapping articles with stretchable film
EP0716021A1 (fr) * 1994-12-05 1996-06-12 A.W.A.X. PROGETTAZIONE E RICERCA S.r.l. Procédé et appareil pour sauvegarder les caractéristiques élasto-plastiques d'un film extensible pendant l'emballage de produits
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EP3098172B1 (fr) 2015-05-29 2018-10-17 Bizerba SE & Co. KG Appareil d'emballage
EP3098172A1 (fr) * 2015-05-29 2016-11-30 Bizerba GmbH & Co. KG Appareil d'emballage
EP3187425A1 (fr) * 2015-12-30 2017-07-05 Bizerba SE & Co. KG Procede destine au fonctionnement d'une machine d'emballage
EP3187425B1 (fr) 2015-12-30 2019-06-05 Bizerba SE & Co. KG Procede destine au fonctionnement d'une machine d'emballage
US10773848B2 (en) 2015-12-30 2020-09-15 Bizerba SE & Co. KG Method of operating a packaging machine
US11383872B2 (en) 2015-12-30 2022-07-12 Bizerba SE & Co. KG Packaging machine
CN113165758A (zh) * 2018-09-04 2021-07-23 德尔塔帕克有限公司 包装机及产品包装方法
CN113200169A (zh) * 2021-03-18 2021-08-03 广西壮族自治区农业科学院 气调包装装置
JP2023097678A (ja) * 2021-12-28 2023-07-10 株式会社寺岡精工 包装装置及びコンピュータプログラム
CN118543528A (zh) * 2024-07-25 2024-08-27 云南省林业和草原科学院 一种思茅松花粉用制备装置以及使用方法

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