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EP0162371A1 - Unité d'avance de feuilles pour une machine de fabrication de tubes - Google Patents

Unité d'avance de feuilles pour une machine de fabrication de tubes Download PDF

Info

Publication number
EP0162371A1
EP0162371A1 EP85105619A EP85105619A EP0162371A1 EP 0162371 A1 EP0162371 A1 EP 0162371A1 EP 85105619 A EP85105619 A EP 85105619A EP 85105619 A EP85105619 A EP 85105619A EP 0162371 A1 EP0162371 A1 EP 0162371A1
Authority
EP
European Patent Office
Prior art keywords
strip
feed unit
unit according
tape
band
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85105619A
Other languages
German (de)
English (en)
Other versions
EP0162371B1 (fr
Inventor
Hans-Jürg Mägerle
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.)
KMK Karl Maegerle Lizenz AG
Original Assignee
KMK Karl Maegerle Lizenz AG
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 KMK Karl Maegerle Lizenz AG filed Critical KMK Karl Maegerle Lizenz AG
Priority to AT85105619T priority Critical patent/ATE32594T1/de
Publication of EP0162371A1 publication Critical patent/EP0162371A1/fr
Application granted granted Critical
Publication of EP0162371B1 publication Critical patent/EP0162371B1/fr
Expired legal-status Critical Current

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Images

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
    • B65H19/1868—The roll support being of the turret type
    • 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/461—Processing webs in splicing process
    • B65H2301/4613—Processing webs in splicing process during splicing
    • B65H2301/46132—Processing webs in splicing process during splicing consuming web up to trailing edge
    • 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
    • B65H2301/461—Processing webs in splicing process
    • B65H2301/4615—Processing webs in splicing process after splicing
    • B65H2301/4617—Processing webs in splicing process after splicing cutting webs in splicing process
    • B65H2301/46172—Processing webs in splicing process after splicing cutting webs in splicing process cutting expiring web only
    • 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
    • B65H2301/4634—Heat seal splice
    • 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 invention relates to a film feed unit according to the preamble of claim 1.
  • a feed unit is used to feed the film strip delivered on supply rolls to a tube manufacturing machine, in which the tube tube is produced in particular from laminate film strip and the tube head is then attached to it.
  • a tube manufacturing machine equipped with a feed unit of a known type must be stopped each time the supply rolls are changed so that the operator can connect the beginning of the next supply roll to the end of the previous supply roll.
  • Such a process includes cutting both the end of the band and the beginning of the band, clamping the end and end of the band, gluing them together using adhesive tape and releasing them from the clamping devices. The machine stops during this time.
  • the object of the invention is therefore to create a film feed unit which enables an automatic roll change.
  • the role change prepared by the operator is initiated automatically by responding to the scanning device if this device detects an irregularity in operation, which is either the end of the film strip or, for example, a fault location.
  • the scanning device responds to changes in thickness, with kinks also being detected.
  • the temporary stopping can be done by switching off the tape feed device.
  • the feed unit, which carries out the roll change automatically not only works independently of the operator, but also faster than the operator can do by hand, so that the downtimes of the machine when changing rolls can be reduced. Due to the general scanning of defects in the film strip, a roll change takes place not only at the end of a strip but also at each defect detected by the scanning device. This prevents interference with the tube manufacturing machine and improves the quality of the tubes produced.
  • the tube manufacturing machine can continue to run during the roll change if, during this time, the one formed by the loop Supply of foil tape is fed to the machine.
  • an embodiment according to claim 3 is advantageous in which the clamping device for the beginning of the band is moved in the direction of the clamping device for the end of the band, because this makes it easy to handle during preparation there is more freedom of movement at the beginning of the tape.
  • the rotatable carrier can be, for example, a pivot beam mounted in its center, on the two arms of which a winding mandrel is arranged.
  • a pivot beam mounted in its center, on the two arms of which a winding mandrel is arranged.
  • an embodiment according to claim 5 is particularly advantageous because, as already mentioned, this not only determines the end of the strip but also points of failure.
  • the scanning device is an inexpensive, mechanical D ickenmessvoriques in which a complicated introduction of the film strip is avoided in the measuring gap by the arrangement of the counter roll.
  • An embodiment according to claim 7 ensures reliable positioning of the counter roller with respect to the stationary measuring roller.
  • an embodiment according to claim 9 enables a position-dependent positioning, so that the first printed section of the beginning of the strip is connected to the last printed section of the end of the strip with exact length. Furthermore, the positioning device for delayed response of the stop device can be programmed in order to use up the still good printed sections which are located between the scanning device and the cutting device remote therefrom at the moment of the response of the scanning device.
  • a preferred embodiment according to claim 10 describes a Auslleiahsvorraum, which ensures the maintenance of a uniform tension practically regardless of the length of the loop formed.
  • An embodiment according to claim 11 serves to maintain a tension of the film strip drawn off from the supply roll, the following dimensioning rule therefore being important for the compensation device is because there is no drive element between the foil tape supply roll and the compensation device.
  • Claim 12 describes a preferred embodiment for the stop device which has a controlled, brakeable stop roller in order to ensure a positioned stopping of the film strip against the tensile force of the compensating device.
  • a further particularly preferred embodiment is described in claim 13, because such a follow-up control device ensures the lateral coverage of the film strip sections to be connected to one another without necessarily guiding the continuous film strip laterally, because such guidance can result in deformation of the edges.
  • An embodiment according to claim 14 enables a quick rejection in order to keep the time for the connection process as short as possible.
  • Claims 15 and 16 describe preferred embodiments of the clamping device for the beginning of the tape, the clamping fingers engaging under the beginning of the tape laterally representing a space-saving construction which is particularly related to the lowerability of the clamping device, since for example a clamping rail would have to be pulled out laterally after the beginning of the tape is connected to the end of the tape.
  • film strip 16 is drawn off from a first film strip supply roll 12 placed on a first winding mandrel 10 by means of a band feed device 14 and fed in the direction of arrow 18 to a tube production machine (not shown).
  • the foil strip 16 is preferably a laminate film tape which n in the cross-section of an inner plastic film, an aluminum foil and an externa s ser e, is already printed plastic film.
  • the film strip is cut off in a first step, wound into a tube and welded.
  • the tube head is attached to the tube and then a cap is screwed on.
  • the film strip 16 comes into contact with the following devices: scanning device 20, cutting table 22, stop device 24, optical scanning device 26, compensation device 28, trimming device 30 and tape feed device 14.
  • the scanning device 20 which has a pair of rollers 32, 34, serves to scan the thickness of the film strip 16 as a criterion for the intended roll change.
  • the pair of rollers consists of a stationary, but spring-loaded measuring roller 34 and a counter roller 32.
  • the measuring roller 34 is connected to an electrical or electronic contact device 36 which responds when there is a deviation from the normal thickness of the film strip 16. In the extreme case, the deviation can be the end of the film strip 16.
  • the film strip has kinks or other unevenness before its end, which leads to a response. Of course, defects that are not related to the end of the strip are also detected, the scanning of which makes a roll change necessary. The scanning ensures that only film tape is fed to the tube manufacturing machine, the thickness of which lies within predetermined tolerances.
  • the film strip runs after a deflecting roller 38 over the cutting table 22, to which a cutting device 40 with a knife 42 movable transversely to the strip direction is assigned.
  • a clamping device 46 Arranged above the cutting table 22 is a clamping device 46 which can be actuated by an actuating element 44 and which serves to clamp the film strip 16 during the cutting process and during the subsequent connecting process.
  • the stop device 24 has a rubber-tired, controllable stop roller 48 and a counter roller 50.
  • the stop roller 48 is braked after the scanning device 20 has determined a change in the thickness or the end of the film strip 16. However, the braking does not take place immediately after the claim of the scanning device 20, but delayed in order to convey the still good and therefore usable belt section 16 ′ which is located between the scanning device 20 and the cutting table 23 during the response.
  • the optical scanning device 26, which is assigned to a positioning device 52, is used to determine the corresponding length of the usable section 16 ′.
  • the positioning device 52 is connected to the stop device 24 in order to actuate it at a point in time at which the end of a tube section is located at the knife 42.
  • the compensating device 28 has a compensating carriage 58 which is guided on a rail 54 and has a deflection roller 56.
  • a compensating device 28 forms a loop 64 of the film strip 16 between two guide rollers 60 and 62.
  • the tensile force of the compensating carriage 58 is dimensioned in such a way that the braking effect of a brake which constantly engages the winding mandrel 10 is overcome, which brake serves to maintain a tensile stress on the film strip.
  • the trimming device 30 is used to cut off at least one of the edges of the film strip 16 in order to obtain a clean, burr-free longitudinal edge.
  • the tape feeding device 14 normally runs at decelerated S t o pp wal ze 48next, the loop 64 is at least partially retracted during this time, is connected to the new beginning of the tape to the trailing end of the tape.
  • the first winding mandrel 10 is fastened to an arm 66 of a swivel bar which can be rotated about a fixed axis of rotation 68.
  • a second winding mandrel 72 is fastened to the second arm 70 of the swivel bar, on which a second film supply roll 74 is placed.
  • the swivel beam 67 consisting of the two arms 66 and 70
  • another rotating body can also be provided, on which more than two winding mandrels are arranged.
  • the axes of all winding mandrels 10, 72 extend parallel to the axis of rotation 68 and are all arranged at the same distance from the axis of rotation.
  • the counter roller 32 of the scanning device 20 is assigned to the first winding mandrel 10 at the end of the arm 66.
  • the second winding mandrel 72 is assigned an identical counter-roller 32 'at the end of the arm 70.
  • the swivel beam 67 can be rotated or swiveled clockwise about its axis of rotation 68, so that after a swivel movement the two mandrels 10 and 72 and the two counter-rollers 32 and 32 'are interchanged.
  • the film strip 78 which is pulled up to a stop 76, is held in place by the start of the strip by a second clamping device.
  • This clamping device 80 has the film strip 78 on both sides engaging clamping fingers 82, which are fastened to a gear wheel and interact with a clamping body 84 arranged above the film strip 78.
  • a connecting device 88 which can be lowered onto the film band by means of an actuating element 86 and which can be, for example, an electrical resistance heater designed as a pulse band.
  • the second clamping device 80 and the connecting device 88 with the actuating element 86 can be lowered on a frame (not shown in FIG. 1) to the height of the cutting table 22.
  • FIG. 2 is mounted in the swivel arm 67 by means of its rotational axis 68 on a rotary drive 90, by means of which it is pivotable at each roll change by an angle of 180 0th
  • the swivel beam 67 is precisely locked by a retractable conical mandrel 92, which engages in a bore 96 arranged in the swivel arm 66 by an actuating element 94.
  • the counter-roller 32 which is only supported on one side on the swivel arm 66, has a bearing 98 on its free shaft end, which engages in a fixed guide 100 connected to the measuring roller 34 when the swivel beam 67 is pivoted.
  • This guide consists of a groove in which the bearing 98 is guided without play in the radial direction to the axis of rotation 68.
  • This guide ensures that the measuring roller 34, which is spring-loaded in the direction of the counter roller 32, responds to a change in the thickness of the film strip passed between the two rollers 34 by actuating the contact device 36 connected to the shaft of the measuring roller 34.
  • Such a contact device can have a sensitivity of 1/1000 mm, for example.
  • the two winding mandrels 10 and 72 are each assigned an adjustable, continuously acting brake 102, 102 ', which is intended to maintain a tension in the film strip 16.
  • the arrangement of the cutting device 40 with the knife 42 relative to the cutting table 22 can be seen from FIG. 3.
  • the knife 42 is moved by the cutting device 40 in the direction of arrow 104.
  • the connection the cut end of the tape with the beginning of the tape of the subsequent supply roll takes place on the surface 106 of the cutting table 22.
  • the latter is not guided laterally. Instead, the lateral position of the film strip 16 is scanned by means of a further scanning device 108 with a scanning element 110.
  • the scanned position is transmitted by means of a tracking control device 112 to an actuating element 114 (FIG. 4) in order to laterally move the clamping device for the beginning of the tape in such a way that the beginning of the tape is brought into lateral agreement with the continuous or ending film tape 16.
  • a carriage 118 which carries the elements of the connecting unit and is movable up and down is arranged in a frame 116 arranged above the cutting table 22.
  • This carriage 118 carries in particular the second clamping device 80 with the associated actuating elements 114 and 124 and the connecting device 88 with the associated actuating element 86.
  • the carriage 118 can be moved up and down by a drive 120.
  • the actuating element 114 which serves for the lateral adjustment of the second clamping device 80 is connected to the run-on control 112 in order to bring the beginning of the band clamped in the second clamping device 80 into lateral correspondence with the continuous film band 116. This ensures that there is no lateral overlap when the beginning of the band is connected to the end of the band.
  • the locking mandrel 92 (FIG. 2) is withdrawn and the rotary drive 90 is set in motion for pivoting the swivel bar 67 in a clockwise direction according to FIG. 1.
  • the rotary drive is stopped and the new position of the swivel beam 67 is locked by the mandrel 92.
  • the time period required for the connection process is shorter than the time period in which the tape feed device 14 would completely use up the loop 64.
  • the speed of the tape feed device 14 is set such that approximately one tube tube section is conveyed per second.
  • the second clamping device 80 is preferably connected to a rotary drive 124 via gear wheels 122.
  • the film feed unit described enables an automatic roll change without interrupting the production process, so that the economy of the tube manufacturing machine can be increased considerably.
  • Foil feed unit a relief for the operator, who does not have to spend unnecessary time waiting for the tape to end.
  • a further significant advantage is provided by the scanning device 20, by means of which not only a reel change at the end of the tape but also at defects in the film tape is triggered. The result is an improvement in the quality of the tubes produced and / or a lower susceptibility to failure of the subsequent tube manufacturing machine.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
EP85105619A 1984-05-15 1985-05-08 Unité d'avance de feuilles pour une machine de fabrication de tubes Expired EP0162371B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85105619T ATE32594T1 (de) 1984-05-15 1985-05-08 Folien-vorschubeinheit fuer eine tubenherstellungsmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2380/84 1984-05-15
CH238084 1984-05-15

Publications (2)

Publication Number Publication Date
EP0162371A1 true EP0162371A1 (fr) 1985-11-27
EP0162371B1 EP0162371B1 (fr) 1988-02-24

Family

ID=4232426

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85105619A Expired EP0162371B1 (fr) 1984-05-15 1985-05-08 Unité d'avance de feuilles pour une machine de fabrication de tubes

Country Status (6)

Country Link
EP (1) EP0162371B1 (fr)
JP (1) JPS60244746A (fr)
AT (1) ATE32594T1 (fr)
BR (1) BR8502269A (fr)
DE (1) DE3561654D1 (fr)
ZA (1) ZA853587B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2223005A (en) * 1988-09-27 1990-03-28 Phillip Arthur Hadley Sheet feeding apparatus
DE4107254A1 (de) * 1991-03-07 1992-09-10 Focke & Co Verfahren und vorrichtung zum verbinden der enden von materialbahnen aus verpackungsmaterial
GB2276369A (en) * 1993-03-25 1994-09-28 Gd Spa Splicing webs
WO1995009794A1 (fr) * 1993-10-05 1995-04-13 The Procter & Gamble Company Procede et appareil pour coller thermiquement des bandes de film thermoplastique
AU706822B2 (en) * 1993-10-05 1999-06-24 Procter & Gamble Company, The Method and apparatus for heat splicing thermoplastic film

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0784287B2 (ja) * 1987-03-14 1995-09-13 日本テトラパツク株式会社 包装用ウエブの接続装置におけるウエブ停止装置
JP2505544B2 (ja) * 1988-08-05 1996-06-12 三菱重工業株式会社 紙継テ―ル部の切断タイミング制御装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1447860A (en) * 1972-11-08 1976-09-02 Masson Scott Thrissell Eng Ltd Apparatus for feeding webs of paper or the like
DE1574392B2 (de) * 1966-08-01 1979-02-15 Masson Scott Thrissell Engineering Ltd., London Vorrichtung zum Verbinden zweier Bahnen aus flachem Material
DE3217247A1 (de) * 1981-05-07 1982-11-25 Owens-Illinois, Inc., 43666 Toledo, Ohio Vorrichtung zum verbinden von materialbahnen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520707A1 (fr) * 1982-01-29 1983-08-05 Adir Dispositif de soudure automatique de feuilles de matiere plastique, pour le raccordement des feuilles, lors d'un changement de rouleaux, sur machine de conditionnement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1574392B2 (de) * 1966-08-01 1979-02-15 Masson Scott Thrissell Engineering Ltd., London Vorrichtung zum Verbinden zweier Bahnen aus flachem Material
GB1447860A (en) * 1972-11-08 1976-09-02 Masson Scott Thrissell Eng Ltd Apparatus for feeding webs of paper or the like
DE3217247A1 (de) * 1981-05-07 1982-11-25 Owens-Illinois, Inc., 43666 Toledo, Ohio Vorrichtung zum verbinden von materialbahnen

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2223005A (en) * 1988-09-27 1990-03-28 Phillip Arthur Hadley Sheet feeding apparatus
DE4107254A1 (de) * 1991-03-07 1992-09-10 Focke & Co Verfahren und vorrichtung zum verbinden der enden von materialbahnen aus verpackungsmaterial
US5316230A (en) * 1991-03-07 1994-05-31 Focke & Co. (Gmbh & Co.) Method and apparatus for joining the ends of webs of packaging material
DE4107254C2 (de) * 1991-03-07 2000-02-10 Focke & Co Vorrichtung zum Verbinden von Materialbahnen
GB2276369A (en) * 1993-03-25 1994-09-28 Gd Spa Splicing webs
US5487805A (en) * 1993-03-25 1996-01-30 G.D S.P.A. Method and a device for the automatic splicing of strips decoiled from rolls
WO1995009794A1 (fr) * 1993-10-05 1995-04-13 The Procter & Gamble Company Procede et appareil pour coller thermiquement des bandes de film thermoplastique
AU706822B2 (en) * 1993-10-05 1999-06-24 Procter & Gamble Company, The Method and apparatus for heat splicing thermoplastic film

Also Published As

Publication number Publication date
ATE32594T1 (de) 1988-03-15
ZA853587B (en) 1985-12-24
DE3561654D1 (en) 1988-03-31
EP0162371B1 (fr) 1988-02-24
JPS60244746A (ja) 1985-12-04
BR8502269A (pt) 1986-01-14

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