EP0716996A2 - Verfahren und Vorrichtung zum Vorbereiten und Öffnen eines Bahnwickels - Google Patents

Verfahren und Vorrichtung zum Vorbereiten und Öffnen eines Bahnwickels Download PDF

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Publication number
EP0716996A2
EP0716996A2 EP95810754A EP95810754A EP0716996A2 EP 0716996 A2 EP0716996 A2 EP 0716996A2 EP 95810754 A EP95810754 A EP 95810754A EP 95810754 A EP95810754 A EP 95810754A EP 0716996 A2 EP0716996 A2 EP 0716996A2
Authority
EP
European Patent Office
Prior art keywords
coil
flat blade
turn
blade
turns
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
EP95810754A
Other languages
English (en)
French (fr)
Other versions
EP0716996A3 (de
EP0716996B1 (de
Inventor
Jean-Jacques Nauer
Jean Cestenaro
Pascal Christen
David Vuilleumier
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.)
Philip Morris Products SA
Original Assignee
Fabriques de Tabac Reunies SA
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 EP94810716A external-priority patent/EP0721905B1/de
Application filed by Fabriques de Tabac Reunies SA filed Critical Fabriques de Tabac Reunies SA
Priority to EP95810754A priority Critical patent/EP0716996B1/de
Publication of EP0716996A2 publication Critical patent/EP0716996A2/de
Publication of EP0716996A3 publication Critical patent/EP0716996A3/de
Application granted granted Critical
Publication of EP0716996B1 publication Critical patent/EP0716996B1/de
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
    • B65H19/105—Opening of web rolls; Removing damaged outer layers; Detecting the leading end of a closed web 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
    • B65H2301/41—Winding, unwinding
    • B65H2301/415—Unwinding
    • B65H2301/41505—Preparing unwinding process
    • B65H2301/41508—Preparing unwinding process the web roll being in the unwinding support / unwinding location
    • B65H2301/41509—Preparing unwinding process the web roll being in the unwinding support / unwinding location opening web roll and related steps
    • B65H2301/415095—Preparing unwinding process the web roll being in the unwinding support / unwinding location opening web roll and related steps gripping an edge of the web, e.g. by clamping and forward it, e.g. to splicing web advancing unit

Definitions

  • the present invention relates to a method and a device for preparing and opening a coil consisting of a strip of flexible material wound in superimposed turns and comprising an upper turn whose free end is fixed to the turn which is directly below it, said coil being disposed on a support axis and comprising two parallel sides.
  • the method and the device according to the invention apply particularly well to relatively narrow coils, that is to say delivering a strip having a maximum width of the order of a few centimeters.
  • the upper coil of the coil is covered with a protective strip, made of a material which may be different from that constituting the coil.
  • a protective strip made of a material which may be different from that constituting the coil.
  • upper turn of the coil is meant in the following description this possible protective strip as well as the first turn (s) of the coil.
  • the portion of the second turn on which the free end of the upper turn is glued must generally be eliminated; for this it must be possible to have auxiliary means allowing this elimination, which makes it possible to require cutting only one single turn, anywhere in the cell except in the immediate vicinity of the bonding point.
  • the closest prior art to be considered is disclosed in application DE-A-32.15.355.
  • the device described comprises a support bar on which are mounted a cutting blade and a coil separation blade, the separation of the turns as well as the cutting being controlled simultaneously by the movement of the support bar.
  • This device has many drawbacks: the construction provided does not allow the distance between the support bar and the separation blade to be adjusted, on the other hand it is quite difficult to minimize the height of the flange on which the separation blade is fixed, this causing an excessive number of turns to be cut; on the other hand, it suffices that the spring effect of the separation blade is reduced, for example after a long use, so that the clamping effect between the support bar and the separation blade is no longer guaranteed, thus it is possible to have one or more turns of the strip between the separation blade and the support bar which are not correctly sectioned; the support bar resting directly on the upper turns, these are compressed which does not facilitate the introduction of the separation blade; the simultaneous movements of the support bar in advance on the last turn, of the separation blade and of the cut
  • An object of the invention is therefore to propose a method for preparing and opening a coil, not encountering the drawbacks of the means of the prior art and making it possible to ensure that the coil located directly below the last cut turn is absolutely intact, even if the upper turns of the coil are wound fairly tightly.
  • Another object of the invention is to propose a device for preparing and opening a coil keeping intact the turn situated directly below the last cut turn and not meeting the drawbacks of the devices of the prior art, this even if the upper turns of the coil are wound fairly tightly.
  • Yet another object of the invention is to provide a device for preparing and opening a reel that can be associated with a machine supplying the paper tape necessary for a cigarette manufacturing machine, including for manufacturing or install filters.
  • the strip of flexible material is a strip of paper from which the wrapping sheets of the cigarette rod will be drawn.
  • Those skilled in the art will know how to adapt the method and the device described to other uses, in particular to the manufacture or installation of cigarette filters or to ribbons of other materials.
  • Figure 1 shows a front view of a machine 1 feeding a cigarette machine (not shown) with a strip of paper and allowing the connection of two strips of paper.
  • the paper supply means 2 comprise in particular a first axis 20 for unwinding a strip of paper 21 in use, which by a set of deflection rollers is directed towards the cigarette machine.
  • These means further include a second axis 22 for storing and preparing a reel 23 of full paper.
  • means for preparing and opening the reel 23 are activated, these means notably being constituted by a swinging arm 10 at the free end of which is arranged a device 3 for preparing and opening the coil 23, said device being described in detail below.
  • the swinging arm 10 can take two positions, a waiting position, shown in broken lines, and a working position, shown in solid lines, where the device 3 is in action.
  • the device 3 after having opened the coil 23, is capable of gripping the last cut turn 24; by actuating the oscillating arm 10 again, this turn 24, shown in broken lines, is driven by the device 3 which returns to the rest position.
  • a device gripping 11, known in the art and not part of the invention moves along a slide 12 to grip the cut coil 24 and take it so that on part of the path of the strip 21, this new strip, shown at 24A, follows a parallel path close to the strip 21.
  • a joining device shown diagrammatically at 13, which can for example be of the type described in patent EP-B-0.662.437, can then be actuated for joining the strip 24A with the strip 21.
  • the device referenced in 10 and 3 is part of the invention, the rest of the machine 1 has been described briefly above in order to be give an account of the context in which the device according to the invention can operate.
  • the characteristics of the paper feeding machine 1 mentioned here are only by way of example, the reel preparation and opening device being able to operate on other types of machines.
  • Figures 2, A, B, C and D show the preparation and cutting device 3 mentioned above seen from the side during four successive stages of the process, while Figures 3, A, B, C and D show part of the same device seen from the front while FIG. 3E shows it during a fifth step.
  • the device 3 is mounted at the end of the swing arm 10. It consists in particular of a first jack 30 whose body is fixed to the swing arm 10 and of which the rod 30A is connected to a first support 31 on one face of which the end of a flat blade 32 is fixed.
  • a first jack 30 whose body is fixed to the swing arm 10 and of which the rod 30A is connected to a first support 31 on one face of which the end of a flat blade 32 is fixed.
  • the device 3 further comprises a second cylinder 33, the body of which is also fixed to the swinging arm 10 and the rod 33A of which is connected to a second support 34 on which is fixed a cutting blade 35.
  • a second cylinder 33 the body of which is also fixed to the swinging arm 10 and the rod 33A of which is connected to a second support 34 on which is fixed a cutting blade 35.
  • the third support 36 also carries an L-shaped clamping support 38 and pivoting around with an axis perpendicular to L, the branch of the support 38 oriented towards the coil 23 carrying a clamping plate 38A while the branch 38B can be actuated by a lever 31A secured to the first support 31.
  • the flat blade 32 is thin but relatively wide; directly above this blade there is the clamping support 38 and the clamping plate 38A, as well as the cutting blade 35.
  • the support tongue 37 is slightly offset with respect to the flat blade 32, being arranged with the other side of the clamping plate 38A than the cutting blade 35.
  • the distance between the lower support face 37A of the support tongue 37 and the upper face of the flat blade 32 is a few tenths of a mm, depending on the thickness of the paper or material forming the strip and the number of turns to be gripped and cut.
  • Preferably known adjustment means can be used to adjust this distance in order to cut at least a single turn.
  • Means not shown may be provided for angularly positioning the coil 23 on its axis, so that the cutting of the upper turn 24 takes place at a location relatively distant from that where said upper turn is glued to the turn which follows it. , respectively not in a location in the immediate vicinity of this bonding point; it is thus possible to minimize the length of paper to be eliminated.
  • This angular positioning can be obtained either by the operator of the machine, or by an automatic means. Since the front tip of the flat blade 32 is intended to be inserted between two turns of the coil 23, this tip has a shape adapted to this function.
  • the operation of the device 3 can now be described.
  • the swinging arm 10 is actuated by a rotary actuator (not shown) to press the device 3 against the coil 23, in the embodiment described here the actuator 30 is actuated in order to advance the flat blade 32; the advance of the support 31 causes the clamping plate 38A to be lowered by the action of the lever 31A on the portion 38A of the support 38.
  • the clamping plate 38A comes into slight contact with the upper face of the flat blade 32 in order to prevent it from bending.
  • the swinging arm is actuated until the underside of the flat blade 32 comes into contact with a portion of the upper coil 24 of the coil 23; when this contact is established, the movement of movement of the oscillating arm 10 stops.
  • FIGS. 2A and 3A This first step of the method is shown in FIGS. 2A and 3A.
  • the cylinder 30 is actuated to remove the blade 32 back; the device 3, then no longer supported on the upper turn 24, then continues a very slight movement in the direction of the coil 23 until the lower support face 37A of the support tongue 37 comes to its tower in contact with the upper coil 24.
  • the clamping plate 38A rests freely on the coil 24, without pressure. Then, and as seen in Figures 2C and 3C, the flat blade 3? is advanced again; given the slight movement of the device 3 towards the coil 23 that we had in the previous step, the plane of the flat blade 32 is located just below one or more of the upper turns 24 of the coil 23. The flat blade 32 is therefore introduced, by the side of the coil, below this or these upper turns and thus crosses the entire thickness of the coil 23. In view of the advance of the flat blade 32, the clamping plate 38A is at pressed again against said blade, thus tightly tightening the turn or turns 24 taken between the upper face of the flat blade 32 and the lower face of the clamping plate 38A.
  • Figures 2D and 3D show the cutting operation, the cylinder 33 being actuated to drive the cutting blade 35 in order to cut the turn or turns 24 arranged above the flat blade 32.
  • the flat blade 32 may have a groove 32A disposed parallel to its longitudinal axis and corresponding to the trace made by the sharpened portion 35A of the cutting blade 35 on the flat blade 32.
  • This groove 32A allows guidance of the sharpened portion 35A , preventing it from deviating from its rectilinear path during the back-and-forth movement causing the cut. Since this flat blade acts as a protective screen, the turns of the coil 23 arranged directly below the flat blade 32 cannot be started by the sharpened portion 35A of the cutting blade 35.
  • the movement back and forth of the cutting blade 35 can be repeated one or more times.
  • the cutting blade 35 is withdrawn, the flat blade 32 remaining advanced, thereby enclosing the coil (s) 24 with the clamping plate 38A.
  • the oscillating arm 10 is again actuated in order to move the device 3 away from the coil 23, the latter then being rotated by the traction exerted on the upper turn or turns 24 or else by an auxiliary means not shown; the cut end of the strip is taken to be treated as explained above with reference to FIG. 1.
  • the cut segments of the turns greater than the last are eliminated by known means.
  • the cylinders 30 and 33 are preferably double-acting cylinders, pneumatic or hydraulic, although other means for actuating the flat blade 32 and the cutting blade 35 can be envisaged. It is further noted in FIG. 2A that the cutting blade 35 and fixed to the support 34 by screw means 35B allowing the blade 35 to be quickly changed when it is worn as well as to adjust its position relative to the flat blade 32.
  • An important point of the process is to arrive at exactly positioning the flat blade 32 so that it can then easily be slid under the upper turn 24 of the coil 23.
  • this positioning is carried out in two stages, approach of the device 3 when the flat blade 32 is advanced, then removal of this blade 32 to press the support tab 37 on the upper turn 24.
  • Other means can be provided to arrive at this stage of the process, if the space available on the device allows it, the support tongue 37 may have a sufficient width to be brought directly into contact with the upper turn 24 during the movement of the oscillating arm 10, the feeler means separated from the swing arm 10 or detectors may also be provided to determine the position in which the swing arm 10 should stop.
  • the coil 23 remains generally stationary, with no rotational movement around its axis.
  • the latter can be animated by a slow rotational movement, preferably in the opposite direction to that of its normal course, so that during this rotational movement the flat blade 32 tends to be pushed up by the spiral winding of the turns of the coil.
  • the device may further comprise a radial support device 39 having at its end close to the coil a roller 39A.
  • the support device 39 is independent of the device 3 and is placed upstream of the latter relative to the normal direction of unwinding of the coil 23.
  • the device d support 39 is pressed with a certain pressure, radially relative to the coil 23 by means of a pneumatic or hydraulic actuator not shown, the pressure being transmitted to the upper turns via the roller 39A.
  • the method and the device according to the invention which are easily adaptable on a cigarette manufacturing line, it is certain to obtain a clean cut of the upper turn of the full reel, without the turn which is attached to it. directly below is damaged.
  • the device described is relatively simple in design, requiring few means of control or activation, which makes it particularly reliable and inexpensive.

Landscapes

  • Replacement Of Web Rolls (AREA)
EP95810754A 1994-12-12 1995-12-01 Verfahren und Vorrichtung zum Vorbereiten und Öffnen eines Bahnwickels Expired - Lifetime EP0716996B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP95810754A EP0716996B1 (de) 1994-12-12 1995-12-01 Verfahren und Vorrichtung zum Vorbereiten und Öffnen eines Bahnwickels

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP94810716 1994-12-12
EP94810716A EP0721905B1 (de) 1994-12-12 1994-12-12 Verfahren und Vorrichtung zum Vorbereiten des Öffnens eines Bahnwickels
EP95810754A EP0716996B1 (de) 1994-12-12 1995-12-01 Verfahren und Vorrichtung zum Vorbereiten und Öffnen eines Bahnwickels

Publications (3)

Publication Number Publication Date
EP0716996A2 true EP0716996A2 (de) 1996-06-19
EP0716996A3 EP0716996A3 (de) 1997-10-29
EP0716996B1 EP0716996B1 (de) 2001-08-22

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Application Number Title Priority Date Filing Date
EP95810754A Expired - Lifetime EP0716996B1 (de) 1994-12-12 1995-12-01 Verfahren und Vorrichtung zum Vorbereiten und Öffnen eines Bahnwickels

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EP (1) EP0716996B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10343423A1 (de) * 2003-09-19 2005-04-14 Voith Paper Patent Gmbh Vorrichtung und Verfahren zum Entfernen von Ausschuss einer Materialbahn von einem Wickeltambour
CN105151865A (zh) * 2015-08-07 2015-12-16 倪娉娉 卷筒纸用挑皮系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3215355A1 (de) 1981-05-13 1982-12-02 Hauni-Werke Körber & Co KG, 2050 Hamburg Papierlagentrennvorrichtung
US4821971A (en) 1988-03-17 1989-04-18 Kabushiki Kaisha Kaneda Kikai Seisakusho Device for peeling and cutting off surface portions of paper rolls
DE3918552A1 (de) 1989-06-02 1990-12-06 Kaneda Kikai Seisakusho Toyona Vorbereitungsmaschine zum spleissen von papierrollen
EP0318427B1 (de) 1987-11-12 1991-07-17 Fabriques De Tabac Reunies S.A. Verfahren und Maschine zum Aneinanderfügen von Papierstreifen für die ununterbrochene Zufuhr an eine Maschine, insbesondere für die Herstellung von Zigaretten
EP0331634B1 (de) 1988-02-25 1992-05-20 Fabriques De Tabac Reunies S.A. Verfahren und Apparat für das Öffnen einer Papierbandspule
EP0475886B1 (de) 1990-08-24 1994-11-09 Fabriques De Tabac Reunies S.A. Vorrichtung und Verfahren zum Öffnen einer Papierrolle und zum Verbinden von dem Ende einer Papierbahn an das Ende einer anderen Papierbahn
EP0662437B1 (de) 1993-12-16 1995-07-19 Fabriques De Tabac Reunies S.A. Vorrichtung zum Verbinden von Bändern aus weichem Material

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483269A1 (fr) * 1980-05-30 1981-12-04 Clesid Sa Ouvreur de bobine
DE4212095C1 (de) * 1992-04-10 1993-08-19 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
CH686429A5 (de) * 1992-10-16 1996-03-29 Von Roll Ag Verfahren und Vorrichtung zum Auspacken einer Papierrolle.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3215355A1 (de) 1981-05-13 1982-12-02 Hauni-Werke Körber & Co KG, 2050 Hamburg Papierlagentrennvorrichtung
EP0318427B1 (de) 1987-11-12 1991-07-17 Fabriques De Tabac Reunies S.A. Verfahren und Maschine zum Aneinanderfügen von Papierstreifen für die ununterbrochene Zufuhr an eine Maschine, insbesondere für die Herstellung von Zigaretten
EP0331634B1 (de) 1988-02-25 1992-05-20 Fabriques De Tabac Reunies S.A. Verfahren und Apparat für das Öffnen einer Papierbandspule
US4821971A (en) 1988-03-17 1989-04-18 Kabushiki Kaisha Kaneda Kikai Seisakusho Device for peeling and cutting off surface portions of paper rolls
DE3918552A1 (de) 1989-06-02 1990-12-06 Kaneda Kikai Seisakusho Toyona Vorbereitungsmaschine zum spleissen von papierrollen
EP0475886B1 (de) 1990-08-24 1994-11-09 Fabriques De Tabac Reunies S.A. Vorrichtung und Verfahren zum Öffnen einer Papierrolle und zum Verbinden von dem Ende einer Papierbahn an das Ende einer anderen Papierbahn
EP0662437B1 (de) 1993-12-16 1995-07-19 Fabriques De Tabac Reunies S.A. Vorrichtung zum Verbinden von Bändern aus weichem Material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10343423A1 (de) * 2003-09-19 2005-04-14 Voith Paper Patent Gmbh Vorrichtung und Verfahren zum Entfernen von Ausschuss einer Materialbahn von einem Wickeltambour
CN105151865A (zh) * 2015-08-07 2015-12-16 倪娉娉 卷筒纸用挑皮系统

Also Published As

Publication number Publication date
EP0716996A3 (de) 1997-10-29
EP0716996B1 (de) 2001-08-22

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