EP0644140A2 - Dispositif et méthode pour changer des bobines en ruban de film et pince pour tenir le film - Google Patents

Dispositif et méthode pour changer des bobines en ruban de film et pince pour tenir le film Download PDF

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Publication number
EP0644140A2
EP0644140A2 EP94113420A EP94113420A EP0644140A2 EP 0644140 A2 EP0644140 A2 EP 0644140A2 EP 94113420 A EP94113420 A EP 94113420A EP 94113420 A EP94113420 A EP 94113420A EP 0644140 A2 EP0644140 A2 EP 0644140A2
Authority
EP
European Patent Office
Prior art keywords
film
film roll
roll
core
section
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
EP94113420A
Other languages
German (de)
English (en)
Other versions
EP0644140A3 (fr
EP0644140B1 (fr
Inventor
Uwe c/o Keil & Schaafhausen Dörr
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.)
Officina Meccanica Sestese SpA
Original Assignee
Officina Meccanica Sestese SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE9313713U external-priority patent/DE9313713U1/de
Priority claimed from DE19934330717 external-priority patent/DE4330717C2/de
Application filed by Officina Meccanica Sestese SpA filed Critical Officina Meccanica Sestese SpA
Publication of EP0644140A2 publication Critical patent/EP0644140A2/fr
Publication of EP0644140A3 publication Critical patent/EP0644140A3/fr
Application granted granted Critical
Publication of EP0644140B1 publication Critical patent/EP0644140B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65H19/20—Cutting-off the expiring web
    • 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
    • B65H19/102—Preparing the leading end of the replacement web before splicing operation; Adhesive arrangements on leading end of replacement web; Tabs and adhesive tapes for splicing
    • 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
    • B65H19/12—Lifting, transporting, or inserting the web roll; Removing empty core
    • B65H19/126—Lifting, transporting, or inserting the web roll; Removing empty core with both-ends supporting arrangements
    • 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
    • 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
    • B65H19/1878—Support arrangement of web rolls with one stationary support for the rolls
    • 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
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/4171—Handling web roll
    • B65H2301/4173—Handling web roll by central portion, e.g. gripping central portion
    • 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
    • B65H2801/00—Application field
    • B65H2801/81—Packaging machines

Definitions

  • the invention relates to a device for changing film rolls, in particular for pallet wrappers, with a film unrolling device which has a mandrel for mounting the film roll having a core, onto which the film roll can be placed and from which the empty core can be removed.
  • Pallet wrappers are used to largely machine-packed goods stacked on pallets.
  • a film is unwound from a film roll and, for example, wrapped around the goods to be packaged in different types of banding.
  • Pallet wrappers can essentially be divided into two classes.
  • the pallet with the goods to be packaged remains stationary in the pallet winder, while the film roll on a rotor arm moves around the packaged goods.
  • the film roll is stationary on the pallet winder, the pallet with the goods to be packaged rotating on a turntable of the pallet winder and thereby pulling the film off the film roll into which the goods are wrapped.
  • the film unwinding device is mounted so that it can be moved or adjusted in height so that the film can be wrapped around the pallet in a helical manner. This is necessary because the web width is usually around 500 mm smaller than the dimensions of the pallet load.
  • film roll is used only as an example in the present description and the claims.
  • the invention is therefore based on the object of a device for changing film rolls d. Like. To procure, which requires only short downtimes of the pallet winder during the film roll change and manual intervention during the film roll change largely unnecessary.
  • This object is essentially achieved in a changing device of the type mentioned at the outset by means of a film roll transporter which can be positioned relative to the film roll device for the transport of the film rolls between a symbol / storage station and the film roll device, which has a core holder for the first used film roll and a film roll holder for the second has new film roll and a mandrel retraction device.
  • the film roll transporter can also have a film welding device for producing a weld between the film start of the second film roll and the film end of the first film roll, and a cutting device for severing the film end between the film welding point and the first film roll.
  • a device with these features enables a practically fully automatic change of the film rolls, which requires only comparatively short downtimes of the machine consuming the films.
  • a sensor first recognizes that there are only a few layers of the film on the core of the existing and almost used film roll.
  • the pallet winder is stopped by an appropriate control, the film transporter is brought up to the film unwinding device with a new second film roll, the beginning of the film of the second film roll is automatically welded to the film end of the first film roll, if necessary, the film end is automatically cut through between the film welding point and the first film roll , the second film roll is positioned on the mandrel and the core of the first film roll is transported with the film roll transporter to a symbol / storage station.
  • the film transporter takes you to the symbol / storage station automatically a new second roll of film and puts down the core of the used first film roll, whereupon the changing process can be repeated.
  • the film roll holders are each designed as a pin arranged on an arm of the film transporter, which has an annular sleeve that can be stretched, for example, by means of compressed air. Any other suitable tensioning device can also be used.
  • the pin of the film roll holder is z. B. inserted from above into the sleeve core and the cuff stretched, for example, by exposure to compressed air. The film roll is released after transport from the film roll holder by a corresponding automatic or assisted contraction of the cuff d. Like. clamping means.
  • a plurality of noses which are under spring tension and protrude from the outer surface of the pin are preferably arranged circumferentially distributed on the pin.
  • the mandrel retraction device has an annular, stretchable sleeve d.
  • clamping devices for. B. a square with a laterally projecting, spring-loaded ball catch, which can be non-positively or positively received in a recess of a foot portion of the mandrel. This configuration of the retraction device enables simple and safe removal of the mandrel from the core of the first used film roll.
  • the mandrel retraction device with the clamping means can advantageously be rotated about its axis and thereby the mandrel on or from a film roll holder arm of the film unwinding device rotatably fixable or releasable.
  • a central mounting of the film roll on the mandrel is ensured, for example, by the fact that the mandrel is surrounded by a conical thickening at a foot section and has protruding, circumferentially distributed noses that protrude from the lateral surface of the mandrel in a head section.
  • the core holder and the mandrel retraction device are arranged on the film roll transporter so as to be vertically displaceable relative to one another with respect to a common axis. This ensures that the core of the first film roll is securely fixed by the core removing the mandrel during removal of the mandrel.
  • the film sealing device has a sealing stamp that can be retracted and extended, to which a sealing stamp stop arranged on the film unrolling device is assigned.
  • a reliable production of the film welding point is ensured by the fact that the sealing stamp and the sealing stamp stop are directly adjacent to one another during the film roll change and the film end of the first film roll and the film start of the second film roll are arranged between the two.
  • a removable film holding clip with two spring arms projecting from the second film roll can be fixed on the second film roll and between the two ends thereof the unrolled film start of the second film roll can be fixed.
  • the fact that the beginning of the film is fixed in a tab-like manner protruding from the second film roll by the film holding clip, the film beginning of the second film roll and the film end of the first film roll can be arranged very easily parallel to one another and welded to one another during the film roll change by moving the film roll transporter relative to the film unrolling device.
  • the film holding clip advantageously has an interrupted spring ring which can be clamped by compression in the sleeve core of the film roll, the spring arms projecting from the ends of the spring ring over the film roll crossing each other approximately radially or tangentially outward from the film roll.
  • the film holding clip has an essentially U-shaped holding bracket, the U-legs of which can be clamped against the inner wall of the sleeve core and the outer surface of the second film roll, the spring arms crossing each other like scissors, approximately tangentially outward from the stick out of the second film roll.
  • the spring arms extend approximately 40 cm ⁇ 10 cm outwards from the center of the film roll of a normal diameter up to approximately 30 cm. So-called large rolls with a diameter of 50 cm or more are used Use of film clips with longer spring arms required.
  • An advantageous embodiment of the invention also consists in that, starting from a first section for releasably attaching the film holding clip to the second film roll, the spring arms run substantially parallel to one another in a second section and cross one another in a central third section and in one fifth section are provided with gripping claws or the like for fixing the beginning of the film.
  • a simple way of releasing the beginning of the film through the film holding clip and removing the film holding clip is that the film transport slide has a gripper for actuating the film holding clip, with which the spring arms can be spread to release the beginning of the film and the film holding clip can be removed from the second film roll.
  • the gripper acts z. B. in an area between the spring ring or bracket and the crossing point on the spring arms. If the spring arms are pressed together by the gripper in this area, the gripping claws of the spring arms move apart, the spring ring being compressed thereby and the film holding clip being easily removable from the sleeve core.
  • a simple construction of the cutting device is that it has holder arms pivotable about an axis of rotation, between the free ends of which a hot wire is stretched. Furthermore, it is u. U. advantageous, instead of the hot wire, a mechanical cutting device, for. B. with a blade actuated by a linear cylinder.
  • the device according to the invention is advantageously controlled or actuated in such a way that the film transporter is provided with a second film roll fixed to the second film roll holder, the beginning of the film by means of the film holding clip protruding from the second film roll, is lifted vertically and moved horizontally onto the film unwinding device so that the sleeve core remover is positioned above the core of the first used film roll, and then the sleeve core holder is lowered so that the core of the first film roll and the second film roll open are at the same level, with the tube core dipper being immersed in the tube core of the first film roll, that the tube core of the first film roll being fixed to the tube core collector, the mandrel retraction device being raised, the mandrel being removed from the first film roll by means of the mandrel retraction device, that the film roll transporter then being moved horizontally until the second film roll is positioned above the lowered mandrel and the film start and film end are adjacent at least approximately parallel to one another,
  • the invention also relates to a film holding clip for a film roll, in particular for use in a z. B. used on a pallet winder film roll changing device of the aforementioned type.
  • the film holding clip has in a first section a clamping element for clamping fixing to a film roll and spring arms are laterally assigned to the clamping element, between the ends of which the film roll protruding from the film roll can be detachably clamped.
  • the film start protruding freely from the film roll is held securely in this position and can, for. B. by means of a film roll transporter be positioned approximately parallel to the film end of the used roll. This creates the prerequisite for connecting the end of the film and the beginning of the film to the film rolls, for example by means of a film welding device.
  • the spring arms are aligned approximately parallel to one another in a second section and in a fourth section, cross one another in a third section and have gripping claws or the like in a fifth section.
  • the clamping element is designed as an interrupted spring ring which can be clamped in a core of a film roll. This measure makes quick insertion of the film holding clip in the sleeve core and removal of the film holding clip easier after opening the spring arms, since the spring ring is compressed by opening the gripping claws of the spring arms and can be easily pulled out of the sleeve core, for example by means of a gripper.
  • the spring arms advantageously project radially and / or tangentially outwards from the ends of the spring ring.
  • a spring arm makes a first bend between the second section and the third section and the other spring arm have a first bend between the third section and the fourth section and both spring arms have a second bend between the fourth section and the fifth section.
  • the clamping element is designed as an essentially U-shaped retaining bracket, the U-legs of which can be fixed in a clamping manner on the inner wall of a sleeve core and on the outer surface of the film roll.
  • the spring arms are advantageously arranged laterally on one of the U-legs, projecting at a right angle from the retaining bracket.
  • the gripping claws or the like protrude essentially at right angles from the outermost fifth section of the spring arms, so that the beginning of the film can be securely fixed.
  • the spring arms have a length of approximately 40 cm ⁇ 10 cm.
  • the spring arms are advantageously aligned approximately parallel to one another and connected to one another in a middle, third section by means of a fixing device, so that the spring arms can be arranged vertically adjacent and parallel to one another, a secure holding of the film or release being ensured by actuating a gripper.
  • the fixing device is formed by a holding bracket arranged on one spring arm, to which the other spring arm is attached, in particular rotatably or pivotably, the spring arms are fixed at a point at a fixed distance from one another, so that the gripping claws open Holding claws of the spring arms is possible due to the action of the gripper due to the acting lever forces.
  • the clamping element which is designed in particular as a spring ring, is compressed, so that the film holding clip can be removed from the sleeve core.
  • a spring arm has a cut in the area of a second section, whereby the opening of the spring arms and the compression of the clamping element is possible with little effort due to the action of the gripper, which is arranged in the area of the cut.
  • the clamping element is designed as an interrupted spring ring.
  • the clamping element is designed as a disc, on the peripheral wall section of which one or more spring-loaded balls are arranged.
  • a device 10 for changing film rolls 17, 38 is shown in three working phases, as is advantageously used for example for pallet wrappers.
  • a film roll transporter 14 designed as a carriage or carriage is arranged horizontally and vertically between a collecting / storage station 15 and the film unrolling device 12 positionable relative to the latter.
  • the film unrolling device 12 has a film roll holder arm 64 which carries a vertically arranged mandrel 16.
  • the mandrel 16 serves to support the first film roll 17, the core 18 of which can be placed on and removed from the mandrel 16.
  • a brake roller 24 and two deflection rollers 20, 22 are also provided on the film unrolling device 12.
  • the film of the first film roll 17 wraps around the brake roller 24 and the deflection roller 22.
  • a sealing stamp stop 26 is arranged between the two deflection rollers 20, 22.
  • the vertically displaceable film unrolling device 12 as a whole is, for. B. either stationary in a pallet winder when the goods to be packaged is positioned on a rotary table assigned to the film unwinding device 12, or else housed on a rotor arm of a pallet winder, with the aid of which the film unrolling device 12 with the film web removed as a whole around the goods to be packaged is moved around.
  • the remaining core 18 must be exchanged for a new film roll 38 while the winding process is interrupted.
  • a film roll transporter 14 of a special type is used for this purpose.
  • the film roll transporter 14 carries, on an arm 48, a core removal unit 30 for the core 18 of the first film roll 17 on the film unwinding device 12 and a film roll holder 31 for the second film roll 38.
  • a retraction device 28 for the mandrel 16 is below of the core take-off 30 attached to another arm of the film roll transporter 14.
  • the retraction device 28 and the sleeve core pickup 30 can be displaced in relation to one another in the vertical direction with respect to a common geometric axis 33.
  • the film roll transporter 14 carries a film welding device 39 with at least one, in particular two or more sealing stamps 40, 42 arranged vertically one above the other. Furthermore, a cutting device 36 is mounted on the film transporter 14, which is arranged on a rotation axis 35 at a distance from one another with this pivotable holder arms 37. A heatable wire for severing the film end 44 of the first film roll 17 is stretched between the free ends of the holding arms 37. For this purpose, the cutting device 36 is pivoted between the core take-off 30 and the film roll holder 31 onto the film end 44.
  • a gripper 34 is also arranged on the arm 48 of the film roll transporter 14, by means of which the spring arms 70, 72 of a film holding clamp 32 can be acted upon on the second film roll 38.
  • the film holding clip 32 is placed on every new second film roll 38.
  • the beginning of the film 46 is clamped between the head ends of the spring arms 70, 72 so that it protrudes from the second film roll 38 like a flag.
  • the sleeve core taker 30 and the film roll holder 31 are vertical according to FIGS. 4a and 4b as on the arm 48 pins 49 arranged at the bottom.
  • a stretchable, annular sleeve 56 provided in the head region expands radially when pressurized air is applied and clamps the core 18 of the first film rolls 17 or the full film roll 38.
  • the pin 49 has a plurality of lugs 50, 52, 54 which protrude from its lateral surface 55 and are under spring tension.
  • the lugs 50, 52, 54 are arranged circumferentially distributed on the lateral surface 55.
  • the mandrel retraction device 28 has an annular, stretchable sleeve 66 which can be received by a recess 67 in a foot section 57 of the mandrel 16.
  • the sleeve 66 can be rotated about a central axis and the mandrel 16 can be rotatably fixed or detached on the film roll holding arm 64.
  • a form-fitting connection between the mandrel and the mandrel retraction device can also be provided instead of the expandable sleeve 66.
  • a square can be provided which engages in a corresponding recess in the lower part of the mandrel.
  • One side of the square has an outstanding, spring-loaded ball catch for fixing the mandrel, which is similar to the holding means of a nut / ratchet connection.
  • the mandrel 16 is surrounded by a conical thickening 63 and has, in a head section 45, protruding, spring-loaded, circumferentially distributed noses 58, 60, 62 from its outer surface 65.
  • the film holding clip 32 which can be plugged onto a full film roll 38, has an interrupted spring ring 68 as a clamping element for clamping on the film roll 38.
  • the spring arms 70, 72 extend from the ends of the spring ring 68 above the film roll 38, crossing one another, approximately radially or tangentially to the film roll 38 to the outside.
  • the film holding clip 32 has a substantially U-shaped holding bracket 90 as a clamping element, the U-legs of which can be clamped against the inner wall 89 of the sleeve core 18 and the outer surface 91 of the second film roll 38.
  • the spring arms 70, 72 protrude from one another in a scissor-like manner approximately tangentially above the outwardly facing film roll 38.
  • the film holding clip 32 in a first section 74 it has a clamping element for clamping attachment to the second film roll 38, to which the two spring arms 70, 72 are connected laterally.
  • the spring arms 70, 72 are aligned approximately parallel to one another in a second section 76 and in a fourth section 80 and intersect in a middle third section 78 at a crossing point 79.
  • the spring arm 72 has a first bend 92 between the second section 76 and the third section 78
  • the spring arm 70 has a first bend 96 between the third section 78 and the fourth section 80
  • both spring arms 70, 72 each have a second bend 94, 98 between the fourth section 80 and the fifth section 82.
  • the spring arms 70, 72 are arranged vertically offset from one another on the clamping element.
  • the gripping claws 84, 86 or the like are essentially directed downwards at right angles from the fifth section 82 of the spring arms 70, 72. With a length of approximately 40 cm ⁇ 10 cm, the spring arms 70, 72 extend outward from the center of the second film roll 38.
  • the gripper 34 for actuating the film holding clamp 32 acts on the spring arms 70, 72 in a region 88 between the clamping element and the crossing point 79. Due to the action of the gripper 34 on the area 88 of the spring arms 70, 72, these are spread in the fifth section 82 and the beginning of the film 46 of the second film roll 38 is released. With the spreading of the outer sections of the spring arms 70, 72 of the film holding clamp 32, the spring ring 68 is compressed at the same time and can thus be automatically pulled out of the core 18 of the second film roll 38 by means of the gripper 34 before the start of winding.
  • the spring arms 70, 72 are aligned approximately parallel to one another and are connected to one another in a central, third section 78 by means of a fixing device 100.
  • the fixing device 100 consists of a holding bracket 102 arranged on a spring arm 72, to which the other spring arm 70 is attached in a fixed, rotatable or pivotable manner.
  • the spring arm 70 has a cut 104.
  • the clamping element is designed as an interrupted spring ring 68.
  • a gripper 34 for actuating the film holding clamp 32 acts on the spring arms 70, 72 in a region 88 between the clamping element and the crossing point 79 or the fixing device 100. Due to the action of the gripper 34 on the area 88 of the spring arms 70, 72, these are spread in the fifth section 82 and the beginning of the film 46 of the second film roll 38 is released. With the spread of the outer Portions of the spring arms 70, 72 of the film holding clamp 32 are pressed together at the same time, the spring ring 68 and can therefore be pulled out of the sleeve core 18 of the second film roll 38 independently by means of the gripper 34 before the start of winding.
  • the clamping element can also be designed as a circular disk 106, on the circumferential wall section of which one or more spring-loaded balls 108 and, not shown in FIG. 4, the spring arms 70, 72 according to one of the exemplary embodiments are arranged.
  • the device 10 for changing the core 18 of the used film roll 17, 38 against a new film roll works as follows: A sensor on the film unrolling device 12 determines that the first film roll 17 has been used up and that only a few layers of film are left on the core 18. The film consumer, e.g. B. the pallet winder is stopped and, if necessary, the film unrolling device 12 is moved into a basic position, in particular into the lower end position. The film end 44 of the first film roll 17 is therefore still wound on the core 18. In the collection / storage station 15 there are a number of new film rolls 38 z. B. ready on a conveyor belt to be transported by means of the film roll transporter 14 to the film unrolling device 12.
  • Each new film roll 38 is provided with a film holding clamp 32, which clamps the film start 46 by clamping, so that it protrudes from the film roll 38 in a flag-like manner over a length of approximately 30 cm.
  • the film holding clip 32 is either by means of the spring ring 68 in the sleeve core 18 or by means of the Retaining bracket 90 fixed to the inner wall 89 of the core 18 and the outer surface 91 of the film roll.
  • the film roll transport carriage 14 moves up to a new film roll 38 that is ready so that the film roll holder 31 is positioned over the core 18 of the new film roll 38. Then you lower the film roll transporter 14 or the film roll holder 31 so that the second film roll holder 31 is immersed in the core 18. After an expansion of the sleeve 56, for example by applying compressed air to it, the new film roll 38 is fixed to the film roll holder 38.
  • the film roll transporter 14 is subsequently moved upwards and in the direction of the film unrolling device 12 until the core removal unit 30 is positioned above the core 18 of the first used film roll 17.
  • the sleeve core remover 30 then lowers and is immersed in the sleeve core 18 of the first film roll 17.
  • the sleeve of the sleeve remover 30 is stretched to fix the sleeve core 18 of the first film roll 17.
  • the almost empty core 18 of the first film roll 17 and the second film roll 38 are now positioned one behind the other at the same height.
  • the retraction device 28 is raised and the sleeve 66 is inserted into the recess 67 in the foot section 57 of the mandrel 16.
  • the mandrel 16 After expansion of the sleeve 66, for example by applying compressed air, and rotation of the retraction device in any case in the area of the sleeve 66 about its axis, the mandrel 16 is detached from the film roll holding arm 64 and pulled down out of the sleeve core 18 of the first film roll 17 while it is from above is held by the core take-off 30.
  • the film transporter 14 is moved so that the film roll holder 31 with the second film roll 38 is arranged above the lowered mandrel 16.
  • the film start 46 of the second film roll 38 now runs almost parallel to the film end 44 of the first film roll 17.
  • the film welding device 39 is actuated to produce a film welding point 47 between the film start 46 and the film end 44.
  • the sealing stamps 40, 42 are moved in the direction of the sealing stamp stop 26 and weld the film start 46 and the film end 44 to one another.
  • the cutting device 36 is then pivoted about the axis of rotation 35 and cuts through the film end 44 between the film welding point 47 and the first film roll 17. During the cutting process, the film end 44 is held in a defined position by being in contact with the deflection roller 20.
  • the mandrel 16 After severing the film end 44, the mandrel 16 is inserted into the sleeve core 18 of the second film roll 38 by lifting the retraction device 28, and the mandrel 16 is locked by rotating the sleeve 66 with the film roll holder arm 64.
  • the gripper 34 on the arm 48 opens the film holding clamp 32 by exerting pressure in the area 88, so that the spring arms 70, 72 are opened and the film start 46 is released. By lifting the film transporter 14 into the upper position, the film holding clamp 32 is removed from the second film roll 38.
  • the film roll transporter 14 is again moved in the direction of the collection / storage station 15 and the film roll holder 31 is positioned over the core 18 of a further second film roll 38.
  • the gripper 34 opens and releases the film holding clip 32 for inclusion in a collecting container.
  • the sleeve 56 of the sleeve core remover 30 is pulled together and releases the core 18 of the first film roll 17 for inclusion in another collecting container.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Winding Of Webs (AREA)
EP94113420A 1993-09-10 1994-08-27 Dispositif et méthode pour changer des bobines en ruban de film et pince pour tenir le film Expired - Lifetime EP0644140B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE9313713U DE9313713U1 (de) 1993-09-10 1993-09-10 Folienhalteklammer für eine Folienrolle
DE4330717 1993-09-10
DE19934330717 DE4330717C2 (de) 1993-09-10 1993-09-10 Vorrichtung zum Wechseln von Folienrollen und Verfahren zum Betreiben einer solchen
DE9313713U 1993-09-10

Publications (3)

Publication Number Publication Date
EP0644140A2 true EP0644140A2 (fr) 1995-03-22
EP0644140A3 EP0644140A3 (fr) 1995-08-23
EP0644140B1 EP0644140B1 (fr) 1998-08-05

Family

ID=25929408

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94113420A Expired - Lifetime EP0644140B1 (fr) 1993-09-10 1994-08-27 Dispositif et méthode pour changer des bobines en ruban de film et pince pour tenir le film

Country Status (3)

Country Link
EP (1) EP0644140B1 (fr)
AT (1) ATE169283T1 (fr)
DE (1) DE59406603D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110155771A (zh) * 2019-05-30 2019-08-23 武汉市海泰伟创科技有限公司 一种包装薄膜卷安装装置
CN117303066A (zh) * 2023-11-29 2023-12-29 淄博博山凯顺包装制品有限公司 一种瓦楞纸收卷装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1140114B (de) * 1959-09-16 1962-11-22 Johann Jacob Keyser Vorrichtung zum Abziehen der vollen Spulen von den Spindeln an Spinn- oder Zwirnmaschinen
FR1478127A (fr) * 1966-04-29 1967-04-21 Appareil pour accumuler et traiter des bobines de matière en bande comme du feuillard ou du papier
US4682929A (en) * 1986-02-03 1987-07-28 Hiroshi Kataoka Device for taking out sheet rolls and mounting sheet roll cores
EP0337140A2 (fr) * 1988-04-15 1989-10-18 Focke & Co. (GmbH & Co.) Machine d'emballage, en particulier pour cigarettes
DE4040545A1 (de) * 1989-12-18 1991-06-20 Gd Spa Verfahren und vorrichtung zum zustellen und wechseln von rollen auf einer herstellungsmaschine
DE9111142U1 (de) * 1991-09-07 1991-11-28 Hacoba Textilmaschinen Gmbh & Co Kg, 5600 Wuppertal Vorrichtung zum Bestücken eines Spulengatters mit vollen Garnspulen und zum Entfernen seiner ganz oder teilweise vom abgelaufenen Spulengarn befreiten Spulenhülsen
EP0509958A1 (fr) * 1991-04-16 1992-10-21 Fabriques De Tabac Reunies S.A. Procédé et dispositif de transfert de galettes en cours de dévidage
DE4206330A1 (de) * 1992-02-29 1993-09-02 Schule Gmbh F H Vorrichtung zum umwickeln von druckschriftenpaketen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1140114B (de) * 1959-09-16 1962-11-22 Johann Jacob Keyser Vorrichtung zum Abziehen der vollen Spulen von den Spindeln an Spinn- oder Zwirnmaschinen
FR1478127A (fr) * 1966-04-29 1967-04-21 Appareil pour accumuler et traiter des bobines de matière en bande comme du feuillard ou du papier
US4682929A (en) * 1986-02-03 1987-07-28 Hiroshi Kataoka Device for taking out sheet rolls and mounting sheet roll cores
EP0337140A2 (fr) * 1988-04-15 1989-10-18 Focke & Co. (GmbH & Co.) Machine d'emballage, en particulier pour cigarettes
DE4040545A1 (de) * 1989-12-18 1991-06-20 Gd Spa Verfahren und vorrichtung zum zustellen und wechseln von rollen auf einer herstellungsmaschine
EP0509958A1 (fr) * 1991-04-16 1992-10-21 Fabriques De Tabac Reunies S.A. Procédé et dispositif de transfert de galettes en cours de dévidage
DE9111142U1 (de) * 1991-09-07 1991-11-28 Hacoba Textilmaschinen Gmbh & Co Kg, 5600 Wuppertal Vorrichtung zum Bestücken eines Spulengatters mit vollen Garnspulen und zum Entfernen seiner ganz oder teilweise vom abgelaufenen Spulengarn befreiten Spulenhülsen
DE4206330A1 (de) * 1992-02-29 1993-09-02 Schule Gmbh F H Vorrichtung zum umwickeln von druckschriftenpaketen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110155771A (zh) * 2019-05-30 2019-08-23 武汉市海泰伟创科技有限公司 一种包装薄膜卷安装装置
CN117303066A (zh) * 2023-11-29 2023-12-29 淄博博山凯顺包装制品有限公司 一种瓦楞纸收卷装置
CN117303066B (zh) * 2023-11-29 2024-01-23 淄博博山凯顺包装制品有限公司 一种瓦楞纸收卷装置

Also Published As

Publication number Publication date
EP0644140A3 (fr) 1995-08-23
ATE169283T1 (de) 1998-08-15
EP0644140B1 (fr) 1998-08-05
DE59406603D1 (de) 1998-09-10

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