EP0263920A2 - Procédé et dispositif de raccordement de deux bandes consécutives de matière - Google Patents

Procédé et dispositif de raccordement de deux bandes consécutives de matière Download PDF

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Publication number
EP0263920A2
EP0263920A2 EP87109029A EP87109029A EP0263920A2 EP 0263920 A2 EP0263920 A2 EP 0263920A2 EP 87109029 A EP87109029 A EP 87109029A EP 87109029 A EP87109029 A EP 87109029A EP 0263920 A2 EP0263920 A2 EP 0263920A2
Authority
EP
European Patent Office
Prior art keywords
web
webs
support
roller
counter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP87109029A
Other languages
German (de)
English (en)
Other versions
EP0263920A3 (fr
Inventor
Dieter Koopmann
Manfred Sanwald
Erich Maier
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.)
Christian Maier GmbH and Co KG Maschinenfabrik
Original Assignee
Christian Maier GmbH and Co KG Maschinenfabrik
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 Christian Maier GmbH and Co KG Maschinenfabrik filed Critical Christian Maier GmbH and Co KG Maschinenfabrik
Publication of EP0263920A2 publication Critical patent/EP0263920A2/fr
Publication of EP0263920A3 publication Critical patent/EP0263920A3/fr
Withdrawn legal-status Critical Current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
    • B65H19/18—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
    • B65H2301/463—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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/464—Splicing effecting splice
    • B65H2301/4641—Splicing effecting splice by pivoting 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/464—Splicing effecting splice
    • B65H2301/46412—Splicing effecting splice by element moving in a direction perpendicular to the running direction of the 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/464—Splicing effecting splice
    • B65H2301/46414—Splicing effecting splice by nipping rollers

Definitions

  • the invention relates to a method and a device for connecting two consecutive webs when unwinding web reels on the occasion of a roll change between two unwinding stations each receiving the web reels, the end of the web in the first web sequence and the beginning of the web of the second web in the web sequence through Cuts, each separating a remainder of the web from the web, are produced, joined together without overlap and connected to one another by a joint tape which overlaps the beginning and end of the web on the same web side.
  • Such methods and devices are mainly used to connect the end of a web running from its roll as automatically as possible with the beginning of the web of a new full roll, so as not to cause any interruption in the production process taking place on the webs and the next web not cumbersome to reinsert or to insert into the production machine. While the web runs from its roll at the first winding point, a new roll is taken up at the second winding point and the beginning of its web is inserted into the device, where the connection to the first web is made as soon as a sensor monitoring the run of this web ends signals.
  • such devices can of course also be used to connect webs of goods if the first web of goods in the web sequence has not yet run to the end, but is to be exchanged for another web of goods for production reasons.
  • the material webs are each cut individually one after the other in time at spatially spaced apart points on their way with separate cutting devices, which is at least in the case of the cut forming the start of the web in the second material web sequence done by hand.
  • this beginning of the web is also provided by hand with the joint tape, which must protrude freely over the beginning of the web in order to be able to be glued to the first web in the web sequence.
  • the gluing takes place during the passage of both material webs and the joint tape between two pressure rollers, the run of both material webs having to be exactly coordinated with one another, so that later on there are no overlaps of the material webs along the cutting lines in the connection. All of this requires very time-consuming, precise and careful, hence costly work and appropriately professionally trained and trained personnel if the material webs are to really fit together along the butt joint according to the accuracy requirements.
  • the invention has for its object to provide a method and an apparatus of the type mentioned in such a way that manual labor is limited to a minimum and only to measures which have no influence on the accuracy of the web connection, so that the cutting of the webs, their joining and connecting can be carried out automatically in a short time and yet very precisely.
  • this object is achieved according to the invention in that an initial piece of the second web in the web sequence in the direction transverse to the web plane is arranged next to the first web in the web sequence with a substantially parallel web plane and the same direction of travel that after stopping the first web of material, both webs of material are pressed against one another, held and cut together at the same time, so that the remainder of the web separated by the cut on the side of the joint tape is removed and then the joint tape is applied to the webs still held, and that the webs then connected are then started again be released, whereby at the same time or later the other remnant of the web that has been held until then is removed.
  • the common cutting of the superimposed and tensioned webs ensures the same cutting lines on both webs, which fit each other exactly and result in an exact connection through the joint tape, because the cut goods do not web despite the removal of the rest of the web lying on the side of the joint tape can move against each other as long as the joint tape has not yet been applied, so the connection between the two webs has not yet been established.
  • This workflow of the simultaneous cutting of both material webs, removal of the remainder of the web lying on the side of the joint tape and application of the joint tape The can easily be done automatically, so that the only handwork only in the insertion of the beginning of the second in the sequence There is a web next to the first web and the assembly of the connecting device with joint tape, both of which can be carried out without special care.
  • the aforementioned object is achieved according to the invention in that on the side opposite the joint tape of the two webs a support with holding members for releasably holding only the web on this side is provided on the support that opposite the support beyond Material webs at least one counterholder is arranged, that the support and the counterholder are essentially perpendicular to the plane of the material webs adjustable relative to each other and compressible against each other, and that a cutting device extending across the width of the material webs for cutting the clamped together between the support and the counterholder Material webs and on the side opposite the support a jointing device is provided which applies the joint tape along the cutting line of the cutting device to the material webs.
  • the two webs of material lying one above the other are clamped between the support on the one hand and the counter-holder on the other and cut together over their width.
  • the removal of the remainder of the web separated from the web on the side of the joint tape can be carried out in various ways to be described later, without the tensioning of the two webs to be bonded to one another by the joint tape, but already cut, being removed. They remain clamped between the support and the counter holder until they are connected by the joint tape. This workflow can be done in a very short time.
  • the downtime of the material webs in the device according to the invention is therefore very short and can be easily caught and buffered by suitable storage arrangements of known type between the device according to the invention and the next production machine, so that a continuous web run through the production machine is easily possible even during the connection process.
  • the cut material web edges to be joined together in the butt face each other with a slight difference in height, which is caused by the remainder of the web that on the side opposite the joint tape is still under one of the two material webs.
  • this difference in height does not interfere, since it then compensates itself in the further course of the web by slightly stretching the joint tape.
  • the possibility of eliminating this height difference before the application of the joint tape it is only necessary to provide that the support is divided along the cutting line and the two support parts are mutually adjustable and lockable perpendicular to the web plane by at least the web thickness. In this way, the material web, which is simply lying on the support, can be brought to the same level as the cut edge of the other material web still underlaid with the remainder of the web, before the joint tape is applied.
  • a preferred embodiment of the invention is characterized in that the support is formed by a plate and the holding members assigned to the support consist of suction openings arranged in the plate, that there is a cutting slot in the cutting line in the plate and that the cutting device is inserted into the Has cutting slot gripping cutting knife which is adjustable in a guide with a drive device over the length of the cutting slot.
  • the suction openings are connected to a suitable vacuum source via controllable valves and ensure that the respective web of material adheres securely to the support when the vacuum is present.
  • an advantageous embodiment of the device is characterized in that the counterholder is provided twice, namely one counterholder on each side of the cutting line, that the connecting device is opposite one another the support beyond the material web between the counterholders arranged stamp, which, like the counterholder, extends along the cutting line and is adjustable essentially perpendicular to the plane of the product webs, and can be pressed against the support or the product webs lying on it via the joint tape, and that at least one of the counterholders is adjustable for itself away from the support and past the stamp and with holding members for detachable Holding the rest of the web adjacent to it is provided on the adjusting counter-holder.
  • the holding members assigned to the adjustable counter-holder are also expediently designed as suction openings in the counter-holder surface that comes into contact with the web of material or the remainder of the web. These suction openings are also connected in a controllable manner to the negative pressure source, so that the negative pressure at the suction openings of this counter holder can be controlled and adjusted independently of that at the suction openings of the support.
  • the adjustable counter holder holds the separated web remnant of the web lying on its side and lifts it off the second web held on the support, after which it can be removed. Seen from the connecting device against the material webs, the cut edges of the material web exposed by the removed web remnant, still held on the support and the other material web lying on the side of the counterholder and still clamped between the support and the fixed counterholder then face each other . If the web connected by the joint tape is then released from the support and the second counterholder, the separated web remnant of the material web lying on the side of the support still adheres to the support until it can also be removed from the support.
  • a preferred embodiment is characterized in that the punch has at least one punch cheek guided and drivable in the direction of the punch adjustment and a traverse parallel to the cutting line, which is rotatably supported on the punch cheek about its longitudinal axis is that the cross-member has a stamp surface designed as a carrier for the connecting band and provided with suction openings, and that a rotary drive is provided which rotates the cross-member between two rotational positions which differ by approximately 180 °, in one of which the stamp surface faces the webs of material and is aligned parallel to them.
  • the stamp surface then facing away from the material webs is easily accessible and can easily be re-equipped with the joint tape, the suction openings being connected to the vacuum source, so that the joint tape adheres to the stamp surface, even with the then rotating the crossbeam and lowering the stamp until the joint tape is glued or otherwise fastened to the two webs.
  • the connection of the suction openings to the vacuum source is therefore only disconnected when the stamp is pulled back from the web and the stamp surface has to detach from the joint tape.
  • a pair of traction rollers with a driven roller and a counter roller that can be lifted off and a guide roller be arranged in front of the support for the webs in the direction of travel behind them and that the tangential plane common to the driven roller and the guide roller Support and the counter-holder runs at a small distance from the counter-holder lying behind the cutting line in the running direction of the web.
  • the two winding stations are formed by the winding heads of a turret winder which, in the position of its turning frame with winding heads standing next to one another parallel to the tangential plane, on the winding head further away from the guide roller, the role of the first web in the path sequence and on the winding head closer to the guide roller carries the role of the second web in the sequence of webs, and that each winding head has a deflection which is mounted in the turning frame and follows the winding head in the direction of rotation thereof roller is assigned, wherein the deflecting roller assigned to the respective winding roller further from the guide roller lies at least in the tangential plane or beyond it on the side facing away from the support.
  • the starting piece of the second web in the web sequence can always be inserted between the web first in the web sequence and the support and can be held on the support, and that the role of in the path of the second web after being connected to the previous web to be replaced by the role of this first web and then the second web can then pass through the device in the same way as the first web.
  • the remainder of the web to be removed after cutting and before connecting the two webs is always in front of the cutting line in the direction of travel of the webs, so that, corresponding to the counter-holder located in front of the cutting line, is the adjustable counter-holder provided with the holder members for the web remnant.
  • a preferred embodiment of the device according to the invention is characterized in that the counterholder also forms the connecting device and consists of a roller which extends across the width of the web and is designed to hold the joint tape and which is mounted on pivot levers with its roller axis parallel to the web level, which in turn is mounted are arranged pivotably in a bearing with a bearing axis parallel to the roller axis, and that the pivoting levers can be moved by means of actuators in such a way that the roller rolls over the cutting line in the pressed state against the cutting line.
  • the joint tape connects to the material webs and at the same time, increasingly detaches itself from the roller in accordance with the travel path covered, so that at the end of the unwinding process, the material webs are connected by the joint tape and the roller is freed from the joint tape.
  • the direction in which the roller rolls over the cutting line on the web depends on whether the web facing the roller before the cutting is the first or second web in the web sequence. However, the direction is always determined so that the roller first rests on the web on the side of the cutting line that is opposite to the remainder of the web to be removed before the joint tape is applied, and that from there the roller then over the cutting line onto the uncovered second web is now unrolled. In the starting position before the unwinding movement, the roller is therefore able to hold both material webs in place even during the removal of the remainder of the web on the joint tape side.
  • the pivoting levers are double-armed, carry the roller at their end on the web side and articulated at their other end to the actuator for the pivoting. Movement and with their bearings are arranged at the free end of handlebar levers which can be pivoted back and forth against the material webs with their end bearing the bearing by means of the further actuator.
  • the roller can easily be pressed against the webs of material as well as rolled off on them at the same time.
  • the roller is expediently provided on its outer surface in a strip which extends along the cutting line along the cutting line when it is being unwound, with holding members for releasably holding the joint tape.
  • These holding members assigned to the roller can in turn be designed as suction openings, at which the suction effect can be controlled individually or in groups depending on the rolling process of the roller on the material webs.
  • the connecting device with the roller is arranged on a slide which can be displaced on a guide parallel to the roller axis by at least the width of the web. This creates the possibility to move the roller in the position pulled off the webs transversely to the web plane level so far that it webs unhindered by the goods to be equipped with a new joint tape.
  • the invention further provides that grippers are provided in the running direction of the webs behind the support on one or both sides of the webs, the holding members for releasably holding the web of goods lying on their side or of the corresponding web remnant and are guided and driven such that they can be moved between a position that detects the web remnant behind the support and a position that detects the web remnant in a position that removes it.
  • the grippers can. be expediently arranged on swivel arms which are rotatably mounted about a swivel axis and connected to a swivel drive.
  • the holding members assigned to the grippers can in turn be used as suction openings in the goods or the gripper surface coming into contact with the system and be controlled in a suitable manner with regard to their connection to the vacuum source.
  • the device shown in Fig. 1 to 3 is used to connect two consecutive webs 1, 1 ', such as foils, textile fleece and paper webs or the like.
  • two consecutive webs 1, 1 ' such as foils, textile fleece and paper webs or the like.
  • Unwinding points 2, 2 ' with the same direction of travel, indicated by the arrow 4, in an arrangement one above the other, are introduced into the device and passed over a support 5, which is located on the side of the second web 1, which is lower in FIG. 1, in FIG.
  • two counterholders 6, 7 are arranged on the other side of the web 1, 1 ', which are one behind the other in the running direction of the web 1, 1' and have a free spacing from one another.
  • the support 5 on the one hand and the counterholders 6, 7 on the other hand are essentially perpendicular to the plane of the material webs. 1, 1 'adjustable relative to each other and compressible against each other, so that the two webs 1, 1' between the support 5 and the counterholders 6, 7 can be clamped and clamped together firmly and immovably.
  • a cutting device which extends across the width of the webs 1, 1 '. Cutting of the two webs 1, 1 'clamped together between the support 5 and the counter supports 6, 7 is provided.
  • the cutting line 8 'of this cutting device 8 runs obliquely to the running direction of the webs 1, 1', but of course an embodiment with a cutting line 8 'running approximately at right angles to the running direction is also possible.
  • a punch 9 is arranged between the counterholders 6, 7, which, like the counterholders 6, 7, extends along the cutting line 8' of the cutting device 8 and essentially perpendicular to the plane of the webs 1, 1 'is adjustable and can be pressed against the support 5 or the fabric webs 1, 1' lying thereon via a joint tape 10 covering the cutting line 8 '.
  • the counter-holder 7 lying in front of the cutting device 8 in the running direction of the webs 1, 1 ' can be adjusted by itself away from the support 5 and past the punch 9 and joint tape 10. It is provided with holding members also designed as suction openings 7 ', so that it can hold the first web of material 1 in the path sequence when it is adjusted, as long as the suction openings 7' are connected to negative pressure.
  • the support 5 is formed by a plate 5.1 which can be raised and lowered against the webs 1, 1 'and which is guided in vertical ball guides 5.2 in FIG. 3, which are held on a machine frame 11. Between the machine frame 11 and the plate 5.1, a lifting cylinder 5.3 is arranged with the line of action parallel to the ball guides 5.2 for the height adjustment of the plate 5.1.
  • the suction openings 5 ' open into vacuum chambers 5.4 arranged below the plate 5.1, which are connected to a vacuum source, also not shown, via lines and control valves (not shown in the drawing).
  • a cutting slot 8.1 running in the section line 8 '.
  • the cutting device 8 has a cutting knife 8.2 protruding upward through the cutting slot 8.1 from the plate 5.1, which can be moved back and forth in a guide 8.3 arranged on the underside of the plate 5.1 between the vacuum chambers 5.4 with a drive device 8.4.
  • This drive 8.4 expediently works pneumatically, but for the sake of simplicity, the pneumatic lines supplying it and the pneumatic valves controlling it are not shown in the drawing.
  • the counter-holder 6 lying behind the cutting line 8 'in the direction of travel of the material webs 1, 1' is fixed, that is to say fixed to the frame.
  • the movement stroke of the pad 5 is sufficient to counter the webs 1, 1 ' to clamp this counter holder 6.
  • the suction openings 7' serving as holding members for the upper web 1 are located in the counter-holder surface 7.1 which comes into contact with this web, the counter-holder 7 being hollow and overall its cavity, in turn, is designed as a vacuum chamber 7.2 into which the suction openings 7 'open.
  • Both counterholders 6, 7 are otherwise provided with elastic coverings 12 on their surfaces facing the material webs 1, 1', in the case of the counter holder 7 this elastic cover 12 is perforated in such a way that the perforations act as suction openings 7.
  • This counter-holder 7 is seated on swivel arms 7.3 which can be rotated about an axis 7.4 lying transverse to the running direction of the webs 1, 1 'and parallel to their plane, for which purpose they are fixed on a shaft 7.5 sit, which is mounted at 7.6 in the frame 11.
  • the swivel drive is carried out by means of a hydraulically actuated actuating cylinder 7.7, w iederum the connecting lines of the cylinder and the hydraulic valves controlling its actuation are not shown.
  • the piston rod 7.8 of the cylinder 7.7 is connected to one of the swivel arms 7.3 at 7.9. In its position shown in FIG. 1, pivoted down against the webs 1, 1 ', the counter-holder 7 is flush with the second counter-holder 6, so that the clamping of the two webs 1, 1' by simultaneously adjusting the support 5 simultaneously on both counter-holders 6 , 7 takes place.
  • the plunger 9 has two plunger cheeks 9.2 which are guided vertically in the direction of the plunger adjustment, that is to say vertically in FIG. 1, and can be adjusted by means of further drive cylinders 9.1 and run in guide plates 9.3 fixed to the frame.
  • the punch 9 has a crossbar 9.4 parallel to the section line 8, which is rotatably mounted about the longitudinal axis 9.5 between the punch cheeks 9.2.
  • This cross member 9.4 is designed as a carrier for the joint tape 10 and for this purpose has a stamp surface 9.6, again provided with suction openings 9 ', so that the joint strip 10 adheres to the stamp surface 9.6 when the suction openings 9' are under negative pressure.
  • the traverse 9.4 is also designed as a vacuum chamber 9.7, into which the suction openings 9 'open.
  • the stamp surface 9.6 also has an elastic covering 13 which, like the counter-holder 7, is so porous that it does not impair the suction effect through the suction openings 9 '.
  • the crossmember 9.4 can be rotated about its axis 9.5 between two rotational positions that differ by approximately 180. In the ' rotary position shown in Fig. 1, the stamp surface 9.6 faces the webs 1, 1' and is aligned parallel to them. In the rotational position rotated by 180 °, the stamp surface 9.6 is freely accessible from above, so that it can easily be fitted with the joint tape 10 required for each connection.
  • a pair of pull rollers 14 with a driven roller 14.1 and a counter roller 14.2 which can be lifted off by means of a pneumatically actuated actuating cylinder 14.3 and a guide roller 15 are arranged in front of the support 5 in the direction of travel behind the support 5.
  • the tangential plane 16 common to the driven roller 14.1 and the guide roller 15, indicated by dashed lines in FIG. 1, runs between the support 5 and the counter-holders 6, 7 at a short distance from the counter-holder 6 lying behind the cutting line 8 'in the running direction of the web 1, see above that the web 1 undergoes only a slight deflection upwards when the webs 1, 1 'are braced against the counter-holder 6 by adjusting the support 5.
  • the two winding positions 3, 3 ' are formed by the winding heads 17, 17' of a turret winder 18. These end windings face each other on a turning frame 18.1 on both sides of its turning axis 18.2, which is mounted on a frame 19 at 18.3.
  • the turning frame 18.1 can be rotated about the turning axis 18.2 in the direction of the arrow 18.5 by means of a drive 18.4.
  • the turning frame 18.1 is such that the end windings 17, 17 'lie next to one another parallel to the tangential plane 16.
  • each winding head 17, 17 ' is associated with a deflection roller 20, 20' which is mounted in the turning frame 18.1 and follows the winding head in the direction of rotation thereof.
  • the turning frame 18.1 is arranged with respect to the machine frame 11, 19 such that the deflecting roller 20 associated with the winding head 17, which is respectively more distant from the guide roller 15, lies at least in the tangential plane 16 or beyond it on the side facing away from the support 5.
  • the turning winder is rotated by 180 °, so that the roll 2' of the new web 1 'takes the place 3 of the expired roll 2 and the new web 1 as before the old web 1 via which the position-changed steering roller 20 ', which also changes in accordance with the rotation, enters the device.
  • rollers 14.1, 15, the counterholders 6, 7, the support 5 and the punch 9 are each mounted or guided on both sides of the machine frame 11.
  • the joint tape 10 is attached to the material webs 1, 1 'by gluing.
  • this fastening can also be carried out in any other suitable manner which is appropriate to the material of the material webs.
  • the stamp 9, in particular the cross member 9.4 can be heated, in particular can be formed with a heating plate receiving the joint tape 10, and / or there is the possibility, in addition to the cross member 9.4 to arrange a radiant heater which heats the joint tape 10 directly at its contact surface with the webs 1, 1 'when the cross member 9.4 temporarily remains in its intermediate position in its rotation, in which the joint tape faces the radiant heater.
  • the beginning of the second web 1 'in the web sequence is fed from its still large roll 2' on the winding head 17 'closer to the guide roller 15' directly to the support 5 and placed on the plate 5.1, where the web 1 'is under vacuum in the vacuum chambers 5.4 is held by the suction openings 5 '.
  • the stamp 9 is rotated 180 ° with the stamp surface 9.6 upwards and the required joint tape 10, for example a prepared adhesive tape, is applied to the stamp surface 9.6.
  • the vacuum is also switched on in the traverse 9.4, so that the joint tape 10 adheres to the stamp surface 9.6 thanks to the suction openings 9 '.
  • the traverse 9.4 is then rotated back through 180 ° to the position shown in FIG.
  • the pair of draw rollers 14 is opened via sensors (not shown) that signal the approaching end of the first web 1 on the winding head 17 further away from the guide roller 15, for example photocells, and thereby the web 1 is stopped. Now the support 5 is lifted up and pressed against the two counterholders 6, 7, the webs 1, 1 'lying one above the other being clamped between the support 5 and the counterholders 6, 7. If: the pad 5 has reached or passed a limit switch or other sensor reporting its end position, the drive 8.4 of the cutting knife 8.2 is switched on, so that the cutting knife 8.2 travels across the width of the web 8.1 in the cutting slot 8.1 and cuts both webs 1, 1 '.
  • the web separation has taken place, which in turn can be signaled by limit switches, photocells or the like. Sensors, the web remnant of the first, ie. H. Upper web 1 is taken up by the pivotable counter-holder 7 by switching on the vacuum in its vacuum chamber 7.2 via the suction openings 7 ', so that it adheres to the counter-holder 7 when it is pivoted upwards. If this end of the web is removed in this way, the stamp 9 is lowered with the joint tape 10, so that the right end of the upper web 1 is connected to the left end of the lower web 1 through the joint tape 10.
  • the sole counter-holder 50 consists of a roller 51 which extends across the width of the web and is designed to hold the joint tape 10. This roller 51 is mounted with its roller axis 52 parallel to the web level pa overhung on a pivot lever 53, which in turn is mounted in a bearing 54 to the roller axis 52 parallel bearing axis 55 is pivotally arranged.
  • the pivot lever 53 is by means of an actuator ben 56, 57 in the form of pneumatic or hydraulic actuating cylinders so movable that the roller 51 rolls on the webs 1, 1 'in the pressed state over the cutting line 8', with the rest of the possibility of adjusting the travel of the roller 51st to be designed in such a way that the cutting device 8 can also be arranged opposite the support 5, that is to say on the side of the counter-holder 50, in contrast to the exemplary embodiment, so that the support 5 no longer needs to be divided for the cutting device 8 along the cutting line 8 '.
  • roller 51 can of course be supported at both ends on two swivel levers 53, particularly in the case of large web widths.
  • the pivot lever 53 is double-armed. At its end on the web side it carries the roller 51 and at its other end it is articulated to the actuator 56 for the pivoting movement and with its bearing 54 at the free end of handlebar lever 58, the end of which carries the bearing 54 by means of the further actuator 57 can be pivoted back and forth against the webs 1, 1 ', for which purpose the control arm 58 can be rotated about an axis 59.
  • the roller 51 has on its circumferential surface in a strip 51.1, shown in FIG.
  • holding members 51.2 for releasably holding the joint tape 10.
  • These holding members 51.2 can be used as suction knobs or the like. but also in turn be formed as suction openings, which can be controlled individually or in groups depending on the rolling process of the roller 51 on the webs 1, 1 ', so that they release the joint tape 10, as far as it is already in the course of the rolling process with the webs 1, l 'has connected.
  • the connecting device with the roller 51 is arranged on a carriage 80 which can be displaced on a guide 81 parallel to the roller axis 52 by at least the width of the web in the position 80 'shown in dashed lines, so that the roller 51 in the position shown in FIG. indicated position reaches, in which its outer surface is freely accessible from the webs 1, 1 'for fitting with a new joint tape 10.
  • the grippers 61, 62 are arranged on swivel arms 63 which are rotatably mounted about a swivel axis 64 and are connected to a swivel drive 65 in the form of a power cylinder.
  • the holding members of the grippers 61, 62 are in turn formed as suction openings 66 in the gripper surface 61.1, 62.1 coming into contact with the material web, the connection of the suction openings to a vacuum wave (not shown) and the valves controlling the connection likewise not being shown.
  • FIGS. 4 and 5 The operation of the device according to FIGS. 4 and 5 can be briefly described with reference to FIGS. 6 and 7:
  • the web 1 and the starting piece A of the web 1 ' are pressed and held by the roller 51 in the direction of arrow 41 against the support 5 and against one another cut together through the knife 8.2 at the same time, as shown in FIG. 6b.
  • the web remnant 1 separated on the side of the joint tape 10 by the cut is pulled back in the direction of the arrow 40, so that the web beginning of the web 1 'formed by the cut is exposed on the side facing the counter-holder 50.
  • roller 51 which during the cutting process has pressed the web 1 and the starting piece A of the web 1 'against the support 5 and thus held against one another, can be rolled in the direction of the arrow 42 over the cutting line 8', which increases Joint tape 10 located on the roller 51 connects to the end of the web 1 and the exposed beginning of the web 1 'and detaches from the roller 51, as shown in FIG. 6c.
  • the web remnant 1'b initially also held by the support 5 has been gripped by the gripper 61.
  • the support 5 also releases the web remnant 1'b, so that it is brought over the receptacle 70 by pivoting the gripper 61 in the direction of arrow 43 and dropped into the receptacle 70.
  • the reverse process can be seen from FIG. 7, namely when the empty web roll 2 is at the left winding point and the full new web roll 2 'is in the right winding point 3'.
  • the processes differ here first of all in that the roller is pressed on the opposite side of the cutting line 8 'in the direction of the arrow 41' against the starting piece A of the web 1 ', so that after the cut according to FIG.

Landscapes

  • Replacement Of Web Rolls (AREA)
EP87109029A 1986-09-12 1987-06-23 Procédé et dispositif de raccordement de deux bandes consécutives de matière Withdrawn EP0263920A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863631051 DE3631051A1 (de) 1986-09-12 1986-09-12 Vorrichtung zum verbinden zweier aufeinander folgender warenbahnen
DE3631051 1986-09-12

Publications (2)

Publication Number Publication Date
EP0263920A2 true EP0263920A2 (fr) 1988-04-20
EP0263920A3 EP0263920A3 (fr) 1990-01-24

Family

ID=6309431

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87109029A Withdrawn EP0263920A3 (fr) 1986-09-12 1987-06-23 Procédé et dispositif de raccordement de deux bandes consécutives de matière

Country Status (2)

Country Link
EP (1) EP0263920A3 (fr)
DE (1) DE3631051A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0395027A3 (fr) * 1989-04-26 1993-01-13 Japan Tobacco Inc. Dispositif pour l'alimentation en continu d'une matière en forme de ruban
EP0554947A1 (fr) * 1992-02-04 1993-08-11 Stork Contiweb B.V. Appareil et procédé pour joindre deux bandes
DE4325944A1 (de) * 1993-08-03 1995-02-09 Focke & Co Verfahren und Vorrichtung zum Verbinden von Materialbahnen, insbesondere aus Verpackungsmaterial
CN102030212A (zh) * 2010-11-24 2011-04-27 杭州珂瑞特机械制造有限公司 宽幅材料拼接系统及拼接方法
JP2017128483A (ja) * 2016-01-21 2017-07-27 株式会社日本触媒 酸化黒鉛の製造方法
JP2017160070A (ja) * 2016-03-08 2017-09-14 株式会社日本触媒 酸化黒鉛の製造方法
EP2692673B1 (fr) 2012-07-31 2018-01-03 Sidel S.p.a. Con Socio Unico Appareil et procédé pour raccorder des bandes pourvues de motifs répétés

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5083718A (en) * 1990-07-06 1992-01-28 Pro Accutech Co., Ltd. Automatic material extension machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2987108A (en) * 1959-02-02 1961-06-06 Mercury Engineering Corp Web butt splicer
FR1533016A (fr) * 1967-07-31 1968-07-12 Masson Scott Thrissell Eng Ltd Appareil pour coller des bandes bout-à-bout
GB2123801B (en) * 1982-07-17 1986-06-25 Hurley Moate Eng Improvments in or relating to splicing webs
IT1169165B (it) * 1983-02-15 1987-05-27 Gd Spa Metodo per la sostituzione di una prima bobina di materiale in nastro in esaurimento con la seconda bobina nuova
IT1168693B (it) * 1983-10-28 1987-05-20 Gd Spa Metodo per la registrazione e la giunzione automatiche di nastri di etichette o simili svolti da bobina

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0395027A3 (fr) * 1989-04-26 1993-01-13 Japan Tobacco Inc. Dispositif pour l'alimentation en continu d'une matière en forme de ruban
US5397424A (en) * 1989-04-26 1995-03-14 Japan Tobacco Inc. Apparatus for continuously supplying strip-like material
EP0554947A1 (fr) * 1992-02-04 1993-08-11 Stork Contiweb B.V. Appareil et procédé pour joindre deux bandes
US5468321A (en) * 1992-02-04 1995-11-21 Stork Contiweb B.V. Apparatus and method for joining two webs together
DE4325944A1 (de) * 1993-08-03 1995-02-09 Focke & Co Verfahren und Vorrichtung zum Verbinden von Materialbahnen, insbesondere aus Verpackungsmaterial
US5518202A (en) * 1993-08-03 1996-05-21 Focke & Co. (Gmbh & Co.) Process and apparatus for connecting material webs, in particular of packaging material
CN102030212A (zh) * 2010-11-24 2011-04-27 杭州珂瑞特机械制造有限公司 宽幅材料拼接系统及拼接方法
CN102030212B (zh) * 2010-11-24 2015-02-25 杭州珂瑞特机械制造有限公司 宽幅材料拼接系统
EP2692673B1 (fr) 2012-07-31 2018-01-03 Sidel S.p.a. Con Socio Unico Appareil et procédé pour raccorder des bandes pourvues de motifs répétés
JP2017128483A (ja) * 2016-01-21 2017-07-27 株式会社日本触媒 酸化黒鉛の製造方法
JP2017160070A (ja) * 2016-03-08 2017-09-14 株式会社日本触媒 酸化黒鉛の製造方法

Also Published As

Publication number Publication date
EP0263920A3 (fr) 1990-01-24
DE3631051A1 (de) 1988-03-24

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