EP0968127B1 - Appareil alimentant en film thermoformable une emballeuse sous blister ou analogue des articles - Google Patents

Appareil alimentant en film thermoformable une emballeuse sous blister ou analogue des articles Download PDF

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Publication number
EP0968127B1
EP0968127B1 EP98905567A EP98905567A EP0968127B1 EP 0968127 B1 EP0968127 B1 EP 0968127B1 EP 98905567 A EP98905567 A EP 98905567A EP 98905567 A EP98905567 A EP 98905567A EP 0968127 B1 EP0968127 B1 EP 0968127B1
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EP
European Patent Office
Prior art keywords
film
reel
films
blade
reels
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.)
Expired - Lifetime
Application number
EP98905567A
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German (de)
English (en)
Other versions
EP0968127A2 (fr
Inventor
Alessandro Amaranti
Alessandro Alessandri
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.)
IMA Industria Macchine Automatiche SpA
Original Assignee
IMA Industria Macchine Automatiche SpA
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Publication date
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Publication of EP0968127A2 publication Critical patent/EP0968127A2/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1857—Support arrangement of web rolls
    • B65H19/1873—Support arrangement of web rolls with two stationary roll supports carrying alternately the replacement and the expiring roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1842—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact
    • B65H19/1852—Attaching, e.g. pasting, the replacement web to the expiring web standing splicing, i.e. the expiring web being stationary during splicing contact taking place at a distance from the replacement roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/28—Registering, tensioning, smoothing or guiding webs longitudinally by longitudinally-extending strips, tubes, plates, or wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/463—Splicing splicing means, i.e. means by which a web end is bound to another web end
    • B65H2301/4631—Adhesive tape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B65H2511/514—Particular portion of element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/175—Plastic
    • B65H2701/1752—Polymer film

Definitions

  • the present invention relates to packaging articles into so-called blister packs, that are obtained from a film of a heat-formable material.
  • the invention relates to an apparatus for feeding this heat-formable film to machines for packaging articles into blister packs.
  • This film is usually produced in reels, which are mounted on suitable carriers pins of the packaging machine. The film is unwound from the reel while being fed to the machine.
  • More recent packaging machines are provided with two reel carrier axles, used alternatively, so that the film is fed almost continuously.
  • the operator prepares a new reel on a carrier axle, when film is unwound from the other reel, and locates the leading edge of the new reel near a splicing station, in which the trailing edge of the run out reel and the leading edge of the new, full reel are then spliced automatically.
  • the two edges are joined by an adhesive tape, previously prepared by the operator.
  • the adjusting operations necessary to change the size of the film of heat-formable material from which the blister packs are obtained are performed manually by the operator.
  • Document EP-A-0395027 describes an apparatus which has first and second loading means. First and second rolls of a strip-like material are loaded on the first and second loading means and a detection means detects an end indication tape adhered to a trailing end portion of the strip-like material of the rolls.
  • a cutting/unrolling means automatically unrolls the strip-like material from the rolls and cuts the leading and trailing end portions of the strip-like material to form the leading and trailing ends.
  • the unrolled strip-like material is guided along a predetermined path by a guide means and a joining station is arranged midway along the guide path.
  • One of the strip-like materials is fed through the joining station by a feeding means and the leading end portion of the other strip-like material is stopped and stands by at the joining station.
  • GB-A-2181414 discloses a device for splicing webs of packaging material, in which the trailing end of a packaging strip wound off a used-up roll is spliced to the leading end of a packaging material coming from a new roll.
  • the device includes means for detecting proximity of the leading edge of a new strip when fed into the guide means.
  • the trailing end of the used strip is cut by means located upstream of the guide means, and timing means are used to set the operating time lapse of pressure means according to the length of the splice as established by the cutting means.
  • the object of the present invention is to provide an apparatus that allows to feed, automatically and continuously, a film of heat-formable material to a machine for packaging articles in blister packs and the like.
  • Another object of the present invention is to provide an apparatus that can automatically set new reels of heat-formable film on the carrier axles and automatically remove the run out reel cores from the carrier axles.
  • a further object of the present invention is to provide an apparatus that automatically prepares the leading edge of the new film reel meanwhile locating it near the splicing station and that automatically applies the adhesive tape at the moment of splicing of the leading edge of the new film to the trailing edge of the run out film reel.
  • Still another object of the invention is to provide a heat-formable film feeding apparatus which performs automatically adjusting operations required during the film size change over.
  • the claimed apparatus also includes a splicing station, in which the leading edge and the trailing edge of said first and second films, fed one after the other to a packaging machine, are spliced.
  • the splicing station is equipped with:
  • a station 1 in which the reels 2 of heat-formable film material 20 are loaded on the apparatus 10, from which the film 20 is fed to a machine for packaging articles into blister packs.
  • the reels 2 to be loaded are disposed in the station 1 arranged with vertical axis and on a pallet 3, that is located in a predetermined position in the station 1 (Fig. 1).
  • the cross-bar 7 moves on longitudinal side members 8.
  • the gripping head 5 is operated by suitable actuators which move it vertically to the carriage 6 and make it oscillate about a horizontal axis parallel to the side members 8.
  • the gripping head 5 is equipped with expansion means 9 which engage the reel 2 to be loaded onto the apparatus ( Figures 2 and 6).
  • the device 4 picks up the reels 2 from the pallet 3 and moves them to a cleaning device 11 equipped with a bell member 12 connected to known suction means ( Figure 2).
  • the bell 12 is carried by an arm 13 connected crosswise to a vertical bar 14 which moves vertically and rotates about its axis. In this way, the bell is moved between a rest position and a working position coaxial with a pin 15 on which the reel 2 to be cleaned has been set.
  • the pick up device 4 puts the cleaned reels 2 on a reel carrying axle 16 of the apparatus 10.
  • the apparatus 10 has two reel carrying axles 16, arranged one beside the other, onto which the reels 2 to be used in sequence, are set, as will be explained in the following.
  • the station 1 is also provided with a chute 17 for discharging the cores 21 of the run out reels, after they have been extracted from the relative reel carrying axle 16.
  • each reel carrier axle 16 includes a hub 18 equipped with expansion means 19, which lock the reel 2 when it is loaded on the apparatus.
  • the hub 18 extends from a shaft 28, rotatably supported by a tube 22, sliding through a sleeve 23 integral with a side 24 of the apparatus stationary frame ( Figure 7).
  • a pusher stop 26 is fixed to the front part of the sleeve 23 for expelling the core 21 of the run out reels 2, and is substantially formed by a cup guided by bars 27 passing longitudinally through the sleeve 23.
  • One of the bars 27 is fastened to the shaft of an actuator 29, e.g. a pneumatic cylinder, which makes the pusher 26 slide axially.
  • an actuator 29 e.g. a pneumatic cylinder
  • the friction roller 30 is supported by a swinging lever 31 pivoting on a pin 33, that is parallel to the reel carrier axles 16, and operated by an actuator 32.
  • the heat-formable film 20 is pulled by a pair of rollers 34,35, one of which is driven by motor means ( Figures 8,10), so that it is unwound from the reels 2.
  • the driving rollers 34,35 direct the film 20, unwinding from the reels 2, respectively to a first and to a second curved guides 36,37, arranged on a common vertical surface.
  • the guides 36,37 are supported by respective adjustment groups 50, described in detail later.
  • Another pair of rollers 38,39 situated in the region of the outlet of each curved guide 36,37 is driven by motor means for driving the relative film 20.
  • a ripping device 40 situated upstream of the driving rollers 34,35, cuts off the portion 51 of adhesive tape, which normally keeps the leading edge of the film 20 in wound in adherence to the reel (see Figure 11a).
  • the ripping device 40 seen in detail in Figures 9a,9b, features a blade 41, carried by a parallel link 42 operated by an actuator 43, so that the blade is moved along the already mentioned vertical surface ( Figure 8).
  • the blade 41 is bound to the parallel link via a lever 44 pivoted on a pin 45 of a connecting rod of the link 42.
  • the lever 44 has a roller 46 following the path of a cam 47.
  • the lever 44 is yieldingly biased by a return spring 48 anchored to the connecting rod of the mechanism 42.
  • the cam 47 is fastened to a rocking lever 49, operated by an actuator not shown in the figures, so that the cam oscillates on the already mentioned vertical surface.
  • Oscillation of the cam 47 causes rotation of the blade 41 between a position raised with respect to the reel and a lowered, ripping position, skimming the reel 2 as indicated with 41a in Figure 9b.
  • the rear part of the blade 41 features an extension 52 acting, together with a stationary, inclined, flat member 53, as a guide for the film 20, when the latter runs between the rollers 34,35.
  • This extension 52 features a rear indentation 54, aimed at avoiding interference with the flat member 53 when the blade 41 is moving operated by the mechanism 42 (see Figures 11a, 11b).
  • the film 20 At the outlet of the guides 36,37, the film 20, unwinding from the reels 2 due to the action of the respective pair of rollers 38,39, engages inlet parts of a stationary guide 55.
  • the inlet parts are convergent towards the only plane on which the film is fed to the machine.
  • the feeding plane is horizontal and extends along a longitudinal axis of the packaging machine.
  • a first and a second sensor 56,57 are situated downstream of the two pairs of rollers 38,39 to detect the presence of a relative film 20 at the outlet of the guides 36,37.
  • Another sensor 58 is situated at the outlet of the guide 55, downstream of deviation means 59 operated by a relative actuator to act on the film 20 ( Figure 8).
  • the film 20 is conveyed through a series of turn-about rollers 62 to a storage device 63 for continuous feeding of the film 20 to a forming station of the packaging machine (see again Figure 8), e.g. of the type disclosed in the Patent Application BO97A 000151 of the same Applicant.
  • This storage device 63 is substantially formed by a pair of side panels 93 enclosing the film 20 and situated on vertical planes longitudinal to the movement direction of the film 20. When the film 20 exits from between the panels, it turns about another turn-about roller 92.
  • the side panels 93 are carried by an adjustment group 94, described in detail in the following.
  • the film 20 is pulled by a further pair of rollers 64,65 situated downstream of the deviation means 59 and the sensor 58, and driven by motor means.
  • the splicing station 60 illustrated in detail in Figures 14 and 15, features a cutting group 66 equipped with a circular blade 67 carried by a horizontal bar 68, which is operated by known and not shown means to move along an axis crosswise to the film 20 advancement direction.
  • the circular blade 67 co-operates with a stationary counter-blade 69 situated within a slit 71 made in the lower part of a plate 70, that acts as a stop for the moving film 20 ( Figures 21a, 21b).
  • First and second gripping means of the film 20, connected to the plate 70, are formed by a pair of horizontal strips 72,73, disposed crosswise to the film 20 advancement direction, respectively downstream and upstream of the slit 71 inside which the circular blade 67 runs (see again Figures 21a, 21b).
  • the strips 72,73 are operated by respective pairs of actuators 74,75 to move vertically.
  • deviation means 61 are carried by a plate 70 downstream of the first strip 72 gripping the film 20 along the already mentioned film advancement direction A.
  • the splicing station 60 features a taping group 76 equipped with an element 77 driven to move, on a plane transversal to the film 20 advancement direction, by a pair of guiding stems 78.
  • the moving element 77 carries a pin 79 supporting a roll 80 of adhesive tape, to be applied to the film 20.
  • the moving element 77 carries an applying roller 81, better seen in Figure 19; this roller 81 features a series of radial channels 82, which are connected to known suction means, so as to keep on its outer surface the tape to be applied, obviously with its adhesive part turned outside.
  • the roll 80 of adhesive tape and the applying roller 81 are supported, with the axis parallel to the film 20 advancement direction, on a vertical cutting plane defined by the circular blade 67.
  • the applying roller 81 is carried by a rocker lever 83, which pivots on a pin 84 parallel to the axis of the roller 81 and which is moved by an actuator 85 mounted oscillating on the moving element 77.
  • a roller 86 acting on the adhesive tape unwinding from the roll 80, is carried by a lever 87 which pivots on a pin 88 parallel to the axis of the roll 80.
  • a not shown actuator moves the lever 87.
  • the upper part of the moving element 77 carries also a blade 90, that is operated by a relative actuator 91 to severe the part of the adhesive tape necessary for splicing the film 20.
  • the reel 2 is taken from the pallet 3, situated in the loading station 1, by the gripping head 5 of the picking up device 4, moved by the carriage 6 along the cross-bar 7 moving on the longitudinal side members 8 ( Figure 1).
  • the reel 2 taken from the pallet 3 is brought to the cleaning device 11 and set onto the pin 15 ( Figure 2).
  • the cleaning device 11 includes the bell 12, that is carried by the transversal arm 13 and is raised by the bar 14 from the rest position and moved over the reel 2 to be cleaned, as shown with broken line 12a in Figure 4. Then the bell 12 is lowered to the working position covering the reel 2 and set in suction, so as to perform the cleaning operation.
  • the gripping head 5 of the pick up device 4 is moved to be lined up with the carrier axle 16 supporting the core 21 of the run out reel ( Figure 3).
  • the removal of the core 21 from the hub 18 is facilitated by the pushing member 26, that is operated by the actuator 29 and slides axially through the sleeve 23, so as to push the core 21 outwards.
  • the pick up device 4 discharges the core 21 onto the chute 17 and transports the reel 2 from the cleaning station 11 to the above mentioned reel carrier axle 16 ( Figure 5).
  • the reel 2 is fixed on the axle 16 by the expansion means 19 of the hub 18 ( Figure 7).
  • the packaging machine is fed with the film 20 unwinding from the reel 2 mounted on the other axle 16 beside, as schematically shown in Figure 8.
  • the new reel 2 fixed on the reel carrier axle 16 is rotated by the friction roller 30 carried by the lever 31 set in contact with the reel 2.
  • the device 40 is operated to severe the portion 51 of the adhesive tape which keeps the leading edge of the film 20 in adherence to the reel 2.
  • the actuator 43 operates the parallel link 42 that carries the oscillating blade 41, so as to bring the blade 41 close to the reel 2, as seen in detail in Figure 9a; in this situation, the cam 47 acts as a track for the roller 46.
  • the leading edge of the film 20 first engages the blade 41 ( Figurella) and then slides on the rear extension 52 of the blade 41, that acts as a guide for the film 20 to be introduced between the driving rollers 34,35 ( Figures 10, 11b).
  • the film 20, pulled by the rollers 34,35, is introduced into the second curved guide 37, and when later it exits from the guide, it is taken between other driving rollers 38,39 and stopped in the region of the sensor 57, that detects the presence of the film.
  • Another sensor 58 situated in the station 60, detects the running out of the film 20 and commands its stopping meanwhile operating the cutting group 66, whose circular blade 67 cuts a terminal part of this film, indicated with 200 ( Figure 12ab) for sake of clarity.
  • the terminal part 200 is expelled by operating the rollers 64,65, that are rotated to drag this part 200 in direction C, opposite to the film 20 advancement direction.
  • the deviation device 59 co-operates to this removal by acting on the part 200 at the outlet of the rollers 64,65, so as to prevent it from returning to the guide 55 ( Figure 12c).
  • driving rollers 34,35; 38,39; 64,65 are made preferably as seen in the Figures 20a,20b, where the motorised roller, suitably covered with gum or similar material, is generally indicated with 97 and the contrast roller with 98.
  • This contrast roller 98 is supported by an eccentric pin 99, which allows its detachment from the motorised roller 97.
  • rollers 97,98 rotate in opposite directions, so as to pull the film 20 ( Figure 20a), while in a deactivated step the same rollers 97,98 are far from each other, so as to allow the film 20, pulled by the means of the packaging machine, to pass freely therebetween ( Figure 20b).
  • the film 20 of the new reel 2 begins to advance, with its leading edge previously arranged in the wait position at the outlet of the driving rollers 38,39 ( Figure 12d).
  • This film 20 passes through the splicing station 60 and is deviated downwards by the deviation means 61, so as not to interfere with the trailing edge of the film 20 fed previously, kept stopped in the station 60 after the terminal part 200 has been cut off.
  • the taping group 76 is operated to apply, in the same station 60, a portion of adhesive tape which splices the leading and trailing edges of the first and second films 20 ( Figure 12f).
  • the terminal part 200 and the beginning part 201 of the two films 20 to be spliced are cut off by the circular blade 67 of the cutting group 66, which is supported by the bar 68 and operated crosswise to the film 20 advancement direction, along the slit 71 having the stationary counter-blade 68 (see Figures 13 and 14).
  • first and second gripping means formed by strips 72, 73, situated respectively downstream and upstream of the slit 71 made in the plate 70.
  • the strips 72,73 are operated vertically by respective pairs of actuators 74,75 ( Figures 15 and 16).
  • the leading and the trailing edges of the film 20 are spliced by the taping group 76, whose moving element 77 is operated crosswise to the film 20 advancement direction, along the guide stems 78.
  • the applying roller 81 is brought to touch the edges of the film 20 being spliced because of the oscillation of the rocker lever 83, operated by the actuator 85, as seen in Figure 17.
  • the adhesive tape unwinds from the roll 80, carried by the moving element 77 and is held on the applying roller 81 by the radial channels 82 connected to suction means.
  • the blade 90 is operated to cut off the portion of the adhesive tape used for splicing the edges of the film 20 ( Figure 19).
  • roller 86 carried by the swinging lever 87 acts on the adhesive tape unwinding from the roll 80, so as to keep the tape and avoid rewinding thereof on the roll 80 ( Figure 19).
  • the described apparatus allows to feed, automatically and continuously, a film of heat-formable material to a machine packaging articles in blister packs and the like.
  • the apparatus automatically substitutes the run out reel of the heat-formable material with a new one, automatically prepares the leading edge of the new film reel near the splicing station and splices the edges without the operator's intervention.
  • the film 20 size is changed by an adjustment device 100, acting simultaneously on the reel carrier axles 16.
  • This adjustment device 100 includes, as seen in Figures 22a,22b, a screw shaft 101 rotatably supported by a frame 102 with its axis parallel to the reel carrier axles 16.
  • the screw shaft 101 is rotated by a motor 103, linked to an encoder 104, and engages a threaded bushing 105, fastened to the plate 25, guided on shafts 106 of the frame 102.
  • the plate 25 supports also the tubes 22 of the two reel carrier axles 16.
  • the screw shaft 101 carries also a pulley 107, connected to a toothed belt 108 transmitting motion to another pulley 109 mounted on a shaft 110 of the adjustment groups 50 of the guides 36,37, as seen in Figure 7.
  • the guides 36,37 are preferably composed of a pair of central stationary section bars 111 and pairs of lateral section bars 112,113, supporting and containing bars, respectively.
  • section bars are carried by relative support bodies 114 sliding on shafts 115, transversally fastened to the side 24 of the apparatus stationary frame.
  • the central section bars 111 are fastened to the shafts 115.
  • the support bodies 114 form respective internal threadings coupled with threaded portions 110a,110b of the adjustment shaft 110.
  • the portions 110a,110b are respectively right-hand and left-hand threaded, so as to determine, when the adjustment shaft 110 rotates, symmetrical sliding of the support bodies 114 carrying the section bars 112,113, as indicated with broken lines 114a, relative to the position of minimum mutual distance between the above mentioned section bars 112,113.
  • rotation of the screw shaft 101 (suitably multiplied and measured by an encoder 104) driven by the motor 103, determines translation of the plate 25, with the tubes 22 of the reel carrier axles 16 fastened thereto, so that the pushing means 26, against which the reels stop, are likewise moved.
  • operation of the screw shaft 101 controls, by transmission to a toothed belt 108, the rotation of the shaft 110 of the adjustment groups 50 of the curved guides 36,37, so as to cause a corresponding translation of the lateral section bars 112,113, respectively supporting and enclosing the film 20 to be fed.
  • the storage device 63 for continuous feeding of the film 20 to the forming station of the packaging machine is adjusted during the above mentioned step, in which the film 20 is stopped in the region of the splicing station 60.
  • the adjustment group 94 features a screw shaft 116 rotated by an intermediate stationary support body 117 equipped with right-hand and left-hand respectively threaded portions 116a,116b, coupled with corresponding means 118 supporting the side panels 93.
  • the screw shaft 116 is rotated by a motor 119, so as to determine the symmetrical sliding of the means 118 supporting the side panels 93, as indicated with broken lines 93a, relative to the position of minimum mutual distance between the above mentioned side panels 93.
  • the upper parts of the support means 118 form respective spouts 96 turned inwards, aimed at guiding the edges of the film 20 pulled by the driving roller 92 on a horizontal outlet plane 95.
  • Figure 24 shows a block diagram of electronic means 120 for controlling the above mentioned adjustment groups, where the numeral 121 indicates generally a motor which rotates the screw shaft 123 coupled to the member to be adjusted 124.
  • the motor 121 is linked to an encoder 122.
  • control means 120 includes a programmable central processing unit 125, formed substantially by a microprocessor controlling a programmable logic system 126.
  • This system 126 controls the motor 121 via a relay 127, to which the limit stop sensors 128, 129 are connected, for safety.
  • the programmable logic system 126 receives signals sent by the encoder 122 and the a zero sensor 130.
  • the control means 120 can be operated by means of a keyboard 131, or e.g. a touch screen input device.
  • the subject apparatus performs automatically adjusting operations required during the size change over for film of different dimensions to be fed to the packaging machine.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

Cet appareil inclut un premier et un second guide incurvé (36, 37) qui sont alimentés, suivant le cas, d'un premier et d'un second film (20) en matériau thermoformable. Un premier et un second détecteur (56, 57) sont situés à la sortie des guides incurvés (36, 37) de façon à détecter la présence des bords avant de ces films (20) avant de les arrêter à une position où ils sont prêts à être introduits dans l'emballeuse. En aval des guides incurvés (36, 37) se trouve un poste (60) dans lequel le bord avant et le bord arrière des premier et second films (20) sont réunis. Ce poste d'assemblage (60) est équipé de détecteurs (58) permettant de détecter la sortie du premier film (20) et de commander l'alimentation du second film (20). Le poste d'assemblage inclut également un bloc de coupe (66) qui, perpendiculairement au sens de défilement (A) du film (20), découpe, suivant le cas, l'excédant de fin (200) et l'excédant d'amorce (201) des films (20). Le poste d'assemblage est également équipé d'un bloc applicateur (76) qui se déplace dans le même plan que le bloc de coupe (66) et supporte un rouleau applicateur (81) sur lequel vient se débiter une bande adhésive provenant d'une bobine (80) pour s'appliquer sur les bords des films (20).

Claims (12)

  1. Appareil pour acheminer un film de matériau thermoformable à une machine d'emballage d'articles en paquets sous blister ou analogues, ledit appareil comprenant :
    un premier et un second guides incurvés (36,37) au moyen desquels, respectivement, un premier et un second films (20) d'un matériau thermoformable sont acheminés, l'un après l'autre, à une machine d'emballage tandis qu'ils sont déroulés de bobines correspondantes (2) montées sur un premier et-un second axes porte-bobine (16);
    des moyens d'entraínement (34,35) situés en amont desdits guides incurvés (36,37) et actionnés pour diriger le film (20), respectivement, vers lesdits premier et second guides incurvés (36,37);
    d'autres moyens d'entraínement (38,39) situés en aval desdits guides incurvés (36,37) et actionnés pour provoquer l'avancement desdits films (20) vers ladite machine d'emballage;
    un premier et un second capteurs (56,57) situés à la sortie desdits guides incurvés (36,37), respectivement, en aval desdits autres moyens d'entraínement (38,39), pour détecter la présence des bords d'attaque desdits films (20) et pour arrêter lesdits films dans une position dans laquelle ils sont prêts à être acheminés à ladite machine d'emballage;
    ledit appareil étant caractérisé en ce qu'il comprend en outre :
    un poste de jonction (60), dans lequel le bord d'attaque et le bord de fuite desdits premier et second films (20) sont joints;
    ledit poste de jonction (60) étant équipé :
    d'un autre moyen capteur (58), situé à la sortie dudit premier guide (36) pour détecter l'épuisement dudit premier film (20) afin de commander par suite l'alimentation dudit second film (20);
    d'un groupe de coupe (66), présentant une lame (67) fonctionnant transversalement à la direction de déplacement (A) desdits films (20) de manière à couper respectivement une partie de fin (200) et une partie de départ (201) desdits films (20);
    d'un premier et d'un second moyens de préhension (72,73) bloquant lesdits films (20) contre un moyen d'arrêt stationnaire (70) respectivement en aval et en amont d'une ligne de coupe dudit groupe de coupe (66);
    d'un groupe d'application de ruban (76) se déplaçant transversalement à la direction de déplacement (A) desdits films (20) dans le même plan que le groupe de coupe (66) et supportant un rouleau applicateur (81), alimenté en ruban adhésif tiré d'une bobine (80), ledit rouleau applicateur (81) étant transporté en état oscillant entre une position de travail, dans laquelle il touche lesdits bords d'attaque et de fuite desdits films (20) à joindre, et une position de repos dans laquelle ledit rouleau applicateur est situé loin de ces bords desdits films (20);
    ledit groupe d'application de ruban (76) étant également équipé d'un moyen de coupe (90) pour sectionner la partie dudit ruban adhésif à appliquer aux bords desdits films (20).
  2. Appareil selon la revendication 1, caractérisé en ce qu'il comprend un poste (1) de chargement de bobines (2), avec un dispositif (4) pour prélever lesdites bobines (2) équipé d'une tête de préhension (5) transportée par un chariot (6) glissant sur une traverse horizontale (7), ladite traverse (7) se déplaçant le long d'une direction parallèle à ladite direction d'avancement (A) des films, ladite tête de préhension (5) pouvant être déplacée verticalement par rapport audit chariot (6) et pouvant osciller autour d'un axe parallèle à ladite direction d'avancement (A) des films, afin de prélever les bobines (2) à charger sur le moyen de support (3) et d'ajuster les bobines (2) sur des axes porte-bobine correspondants (15).
  3. Appareil selon la revendication 2, caractérisé en ce que ledit poste de chargement (1) comprend un dispositif (11) de nettoyage de bobines (2) équipé d'un élément en cloche (12) raccordé à un moyen d'aspiration et porté par un bras (13) raccordé transversalement à une barre verticale (14), ladite barre verticale étant déplacée verticalement et soumise à une rotation autour de son axe entre une position de repos et une position de travail dans laquelle elle est coaxiale avec une broche (15) sur laquelle la bobine (2) à nettoyer doit être ajustée.
  4. Appareil selon la revendication 1, caractérisé en ce qu'il comprend un dispositif d'arrachage (40) situé en amont desdits guides incurvés (36,37) pour arracher une partie (51) de ruban adhésif qui maintient normalement un bord d'attaque du film (20) collé à la bobine (2), ledit dispositif d'arrachage (40) portant une lame (41) acheminée par une liaison parallèle (42) longitudinalement à la direction de déplacement (A), ladite lame (41) étant reliée à ladite liaison parallèle (42) via un levier (44) articulé à ladite liaison (42) et équipée d'un rouleau (46) suivant le trajet d'une came (47) en raison de l'action de moyens élastiques (48), ladite came (47) oscillant sur la surface verticale déjà mentionnée, ce qui a pour effet de provoquer la rotation de ladite lame (41) entre une position relevée, par rapport à la bobine (2), et une position d'arrachage abaissée, dans laquelle la lame (41) affleure la bobine (2) et ledit rouleau (46) est séparé de ladite came (47) pour permettre audit moyen élastique (48) de pousser ladite lame contre ladite bobine (2).
  5. Appareil selon la revendication 1, caractérisé en ce que ledit groupe de coupe (66) est équipé d'une lame circulaire (67) portée par une barre horizontale (68) qui est actionnée pour se déplacer transversalement à la direction d'avancement du film (20), ladite lame circulaire (67) coopérant avec une contre-lame stationnaire (69) située dans une fente (71) ménagée dans la partie inférieure d'une plaque (70).
  6. Appareil selon la revendication 5, caractérisé en ce que le premier et le second moyens de préhension (72,73) du film 20 sont formés par une paire de bandes horizontales (72,73) disposée en travers de la direction d'avancement (A) du film (20), respectivement en aval et en amont de la fente (71) de ladite plaque (70), à l'intérieur de laquelle la lame circulaire (67) se déplace, et actionnée par des paires respectives de commandes d'actionnement (74, 75) pour se déplacer verticalement.
  7. Appareil selon la revendication 1, caractérisé en ce que ledit groupe d'application de ruban adhésif (76) est équipé d'un rouleau (86) porté par un levier (87) qui oscille parallèlement à l'axe dudit rouleau (80) et agissant sur le ruban adhésif pour le dérouler du rouleau (80) de manière à réduire la tension au cours de l'opération de coupe.
  8. Appareil selon la revendication 1, caractérisé en ce que ledit poste de jonction (60) comprend un premier et un second moyens de déviation (59,61) situés l'un après l'autre en amont dudit groupe de coupe (66) et agissant respectivement sur ladite partie de fin (200) et ladite partie de départ (201) dudit film (20) qui est éjecté.
  9. Appareil selon la revendication 1, caractérise en ce qu'il comprend un dispositif de stockage (63), situé en aval dudit poste de jonction (60) et visant à acheminer en continu le film (20), ledit dispositif (63) étant formé par une paire de panneaux latéraux (93) enfermant ledit film (20) et aménagé sur les surfaces longitudinales par rapport à 1a direction d'avancement (A) du film (20) et porté par un groupe (94) ajustant la distance mutuelle desdits panneaux (93).
  10. Appareil selon la revendication 1, caractérisé en ce qu'il comprend un dispositif d'ajustement (100) équipé d'un arbre fileté (101) porté en rotation avec son axe parallèle aux axes porte-bobine (16) et transversalement à ladite direction de déplacement (A) dudit film (20), et s'engageant sur une douille filetée (105) jointe à des tubes respectifs (22) des deux axes porte-bobine (16), qui sont fixés à des moyens respectifs (26), contre lesquels les bobines (2) s'arrêtent.
  11. Appareil selon la revendication 10, caractérisé en ce que lesdits moyens d'arrêt (26) glissent axialement vers lesdits tubes (22) et sont actionnés par des commandes d'actionnement respectives (29) de manière à éjecter les mandrins (21) desdits bobines épuisées (2).
  12. Appareil selon la revendication 10, caractérisé en ce que ledit arbre fileté (101) est entraíné pour faire tourner, par un moyen de transmission (108), des arbres respectifs (110) d'un. premier et d'un second groupes d'ajustement (50) de guides respectifs (36,37), lesdits guides (36,37) étant de préférence équipés de barres de section latérales (112,113) supportant et contenant des barres, respectivement, portées par des corps de support correspondants (114) glissant en travers de ladite direction d'avancement (A) dudit film (20) et formant des filets internes respectifs couplés à des parties (110a,110b) filetés dans le sens opposé auxdits arbres (110).
EP98905567A 1997-03-18 1998-03-13 Appareil alimentant en film thermoformable une emballeuse sous blister ou analogue des articles Expired - Lifetime EP0968127B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITBO970152 1997-03-18
IT97BO000152A IT1292802B1 (it) 1997-03-18 1997-03-18 Apparecchiatura per l'alimentazione di un film di materiale termoformabile in macchine confezionatrici di prodotti in
PCT/IB1998/000349 WO1998041463A2 (fr) 1997-03-18 1998-03-13 Appareil alimentant en film thermoformable une emballeuse sous blister ou analogue des articles

Publications (2)

Publication Number Publication Date
EP0968127A2 EP0968127A2 (fr) 2000-01-05
EP0968127B1 true EP0968127B1 (fr) 2001-07-18

Family

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Application Number Title Priority Date Filing Date
EP98905567A Expired - Lifetime EP0968127B1 (fr) 1997-03-18 1998-03-13 Appareil alimentant en film thermoformable une emballeuse sous blister ou analogue des articles

Country Status (5)

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EP (1) EP0968127B1 (fr)
JP (1) JP4236703B2 (fr)
DE (1) DE69801153T2 (fr)
IT (1) IT1292802B1 (fr)
WO (1) WO1998041463A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2823190B1 (fr) * 2001-04-10 2003-09-05 Cermex Ouest Conditionnement Procede pour recharger une fardeleuse a l'aide d'un film plastique, et fardeleuse mettant en oeuvre le procede
DE102004047031A1 (de) * 2004-09-28 2006-06-14 Siemens Ag Zuführeinrichtung für elektrische Bauelemente und Verfahren zum Fördern von Bauelementen in einer Zuführeinrichtung
CN103112742B (zh) * 2013-02-26 2016-03-16 马勇强 一种居中透气复合膜居中放卷装置及其加工方法
CN110422382B (zh) * 2019-08-21 2024-03-12 厚德食品股份有限公司 一种卤蛋包装下膜成型机构

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB922898A (en) * 1958-05-22 1963-04-03 Walker Enfield Ltd Improvements in or relating to strip splicing apparatus
DE2361317A1 (de) * 1973-12-08 1975-06-12 Agfa Gevaert Ag Vorrichtung zum verbinden einer von einer rolle ablaufenden bahn mit einer neuen bahn, insbesondere fuer den rollenwechsel bei papier- und folienverarbeitungsmaschinen
GB1519524A (en) * 1975-11-19 1978-08-02 Agfa Gevaert Butt splicer for butt-joining a fresh web to an expiring web
GB2093808B (en) * 1980-12-22 1985-05-30 British American Tobacco Co Splicing webs
JPS57142815A (en) * 1981-02-18 1982-09-03 Ckd Corp Method and device for automitically connecting film
GB2123801B (en) * 1982-07-17 1986-06-25 Hurley Moate Eng Improvments in or relating to splicing webs
IT1186633B (it) * 1985-10-11 1987-12-04 Gd Spa Dispositivo per unire l'estremita' finale di un nastro avvolto in una bobina in esaurimento con l'estremita' iniziale di una nuova bobina
IT1191362B (it) * 1986-06-23 1988-03-16 Az Cost Macchine Autom Acma Sp Apparecchiatura per congiungere al nastro di una bobina in esaurimento il lembo iniziale di una nuova bobina
JPH089441B2 (ja) * 1989-04-26 1996-01-31 日本たばこ産業株式会社 帯状材の連続供給機
WO1991011380A2 (fr) * 1990-01-26 1991-08-08 Eastman Kodak Company Appareil et procede de collure de bandes de longueurs indeterminees
DE4112842A1 (de) * 1991-04-19 1992-10-22 Basf Ag Vorrichtung zum stumpfen verbinden zweier warenbahnen

Also Published As

Publication number Publication date
ITBO970152A1 (it) 1998-09-18
EP0968127A2 (fr) 2000-01-05
ITBO970152A0 (it) 1997-03-18
JP4236703B2 (ja) 2009-03-11
DE69801153T2 (de) 2001-10-31
WO1998041463A3 (fr) 1998-12-23
JP2001515446A (ja) 2001-09-18
DE69801153D1 (de) 2001-08-23
IT1292802B1 (it) 1999-02-11
WO1998041463A2 (fr) 1998-09-24

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