EP3023374B1 - Dispositif d'amenee de substrat pour un procede de fabrication de tubes d'emballage et procede d'amenee de substrat - Google Patents

Dispositif d'amenee de substrat pour un procede de fabrication de tubes d'emballage et procede d'amenee de substrat Download PDF

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Publication number
EP3023374B1
EP3023374B1 EP15194527.6A EP15194527A EP3023374B1 EP 3023374 B1 EP3023374 B1 EP 3023374B1 EP 15194527 A EP15194527 A EP 15194527A EP 3023374 B1 EP3023374 B1 EP 3023374B1
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EP
European Patent Office
Prior art keywords
endless
substrate band
substrate
endless substrate
decoiling
Prior art date
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Application number
EP15194527.6A
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German (de)
English (en)
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EP3023374A9 (fr
EP3023374A1 (fr
Inventor
Julius LÄUBLI
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.)
Packsys Global AG
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Packsys Global AG
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Publication of EP3023374A1 publication Critical patent/EP3023374A1/fr
Publication of EP3023374A9 publication Critical patent/EP3023374A9/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1842—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
    • B65H2301/4601—Splicing special splicing features or applications
    • B65H2301/46015—Splicing special splicing features or applications of (half) tube webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/463—Splicing splicing means, i.e. means by which a web end is bound to another web end
    • B65H2301/4631—Adhesive tape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/70—Clutches; Couplings
    • B65H2403/72—Clutches, brakes, e.g. one-way clutch +F204
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/21—Accumulators
    • B65H2408/217—Accumulators of rollers type, e.g. with at least one fixed and one movable roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/11—Dimensional aspect of article or web
    • B65H2701/112—Section geometry
    • B65H2701/1121—Section geometry shape
    • B65H2701/11214—Section geometry shape tube

Definitions

  • the invention relates to a device according to the preamble of claim 1 for feeding roll-wound substrate tapes (film tapes), namely tube laminate tapes, into a packaging tube manufacturing process in which tube bodies are made from a continuous substrate tape by forming, welding and sealing the endless substrate tape into an endless tubular body Single tube tubes is divided.
  • the device comprises a first unwinding device having brake means for exchangeably receiving a first reel for unwinding substrate tape from this first reel.
  • the device comprises at least one brake means having second unwinding device for exchangeable receiving a second roll for unwinding of substrate tape from this second roller.
  • the apparatus comprises further unwinding means for respectively receiving a roll for unwinding substrate tape from that roll, wherein preferably each of the further unwinding means comprises braking means for adjusting the unwinding speed.
  • the apparatus further comprises a connecting device arranged downstream of the unwinding units (in the substrate conveying direction) for interconnecting a substrate strip from a roll arranged on one of the unwinding devices with an endless substrate strip (which is produced by consecutively fixing or fixing the substrate strips originating from the rolls to one another - Usually, the endless substrate tape is just prior to fixing a (new) substrate strip exclusively from the connected in the previous connecting step substrate band of the becoming empty role).
  • the device comprises a level-variable substrate belt accumulator downstream of the connecting device (in the substrate conveying direction), in particular a roller store, for temporarily storing the endless substrate belt for the packaging production process.
  • the apparatus comprises control means adapted to drive the brake means of the unwind means for adjusting the respective unwinding speed in dependence on the continuous substrate belt level of the buffer during an unwinding operation condition.
  • the invention relates to a feeding method according to the preamble of claim 12 for feeding roll-wound substrate tapes, namely tube laminate tapes, into a packaging manufacturing process, preferably using a device constructed according to the concept of the invention, wherein in an unwinding operating state during unwinding of substrate tape (endless substrate tape ) adjusting from one of a plurality of rollers the unwinding speed of said roller by driving braking means in response to a continuous substrate belt of a level variable buffer, and wherein, after detaching the endless substrate belt from the roller, a substrate belt from another of the rollers is connected to the endless belt by a connecting means; which is stored in the cache between.
  • a connecting means which is stored in the cache between.
  • the strip-shaped substrate in particular tube laminate
  • known devices have at least two unwinding devices for respectively receiving a substrate roll. Once the one The roll from which the substrate strip is currently being processed becomes empty, the processing is transferred to another one of the rollers.
  • This existing substrate strip current is referred to as Endlossubstratband and consists of the previously unwound substrate tapes or remaining in the overall device remaining.
  • the originating from the emptying role substrate belt is separated by means of a knife.
  • the substrate strip beginning originating from the new roll is connected to the end of the continuous substrate strip (which originates from the empty roll) which runs into the process. During this bonding process, no substrate tape flows from the rollers.
  • the buffer consists essentially of two sets of rollers, one of which can be adjusted relative to the other back and forth.
  • a pressure cylinder exerts on the movable roller set a constant force, which is directed so that the movable roller set moves away from the fixed roller set.
  • the substrate belt is passed around the rollers alternately between the two sets of rollers, the buffer being full when both sets of rollers are as far apart as possible and are empty when the two sets of rollers are as close as possible.
  • the unwinding devices have brake mechanisms which stress the substrate belt and thus prevent the roller sets from drifting apart in the buffer.
  • a control loop ensures that the braking performance of the unwinder brakes is selected so that the level of the accumulator does not change during normal operation (unwinding state).
  • the endless substrate belt in the area of the connecting device must be clamped in front of the intermediate storage device in the conveying direction, ie. be stopped before the connection to the vacant role is cut by a knife.
  • the endless substrate belt would tear off the empty core and the roller sets of the buffer would move apart as far as they would go, uncontrollably pulling the end of the endless substrate into the buffer, with the result that the substrate belt tension would collapse completely would.
  • the buffer would be emptied to the stop and the substrate belt tension would increase until the substrate strip breaks or finally tears off the roll core or a trigger motor for removing the substrate strip from the respective Role stops due to a current limit.
  • an infeed and unwinding device of roll wound substrate tapes comprises two substrate rollers, from which a substrate belt is unwound.
  • a connecting device for connecting a substrate belt from one of the rollers to the substrate belt of the other roller
  • the endless substrate belt passes through a small buffer store comprising a dancer roller for temporarily storing the endless substrate belt.
  • the buffer is followed by a drive downstream in the conveying direction to promote the substrate belt in the subsequent process.
  • a stop device In the conveying direction of the substrate strip between the connecting device and the buffer is a stop device for stopping the substrate strip in an area in front of the buffer to connect the end of a substrate strip with the beginning of the other substrate strip in the connecting device can.
  • the rollers are associated with rotating blades to cut the substrate tape in an area in front of the connecting device can. After cutting off a substrate band, its free end moves further in the direction of the connection device, in order then to be connected to the beginning of the other substrate strip.
  • the Stop device inactive and the feed rate is determined by the caching downstream drive continues. The consequence is that the voltage of the substrate strip collapses at the latest when cutting with the aforementioned rotating knife almost to zero, up to the drive, so in particular in the entire area of the cache (dancer).
  • the stop device is activated and the drive continues to rotate at a constant speed and pulls the dancer of the buffer into its cocked position.
  • the known device requires that the buffer be completely filled before the separation step of the substrate strip from the roll, otherwise the detached (free) substrate band end is accelerated uncontrolled by the dancer of the buffer after separation from the roll.
  • WO 2013/137738 A1 is a device for interconnecting V shrink film known, which are wound in contrast to thicker and more rigid Polka dot film laminates already in the tubular or circumferentially closed state on rolls and are handled by these in the context of the known method.
  • the DE 37 27 339 A1 , the DE 23 49 475 A , the DE 43 11 129 A1 , the JP 2012-140248 A as well as the DE 101 59 529 A1 called.
  • the present invention seeks to provide an improved device for feeding wound on substrate tapes in a packaging tube manufacturing process, which is characterized by a reduced substrate strip waste, especially when using more than two unwinding devices to reduce the overall roll change frequency , Furthermore, the object is to provide a with respect to a Abfallmi in an improved tube substrate feeding process in a packaging tube manufacturing process.
  • control means are configured such that the endless substrate belt brake means are controlled in such a way that the fill level of the buffer does not change as far as possible or only slightly in the detaching operating state.
  • the braking means of the unwinding devices and / or the endless substrate belt braking means may preferably be formed by and / or comprise a motor, in particular a servomotor.
  • the object is achieved with the features of claim 12, i. in a generic method characterized in that the input conveying speed of the endless substrate tape into the buffer and the substrate belt tension of the endless substrate belt in the endless substrate belt conveyance direction in front of the buffer in a Ablinate vulgarsschreib in which the endless substrate belt is not yet connected to a substrate strip of a roll (ie a free to all stored substrate tapes spaced, free substrate tape end has) and its free end is moved in the direction of the connecting means is adjusted.
  • the invention is based on the idea, in addition to the braking means for adjusting the unwinding speed of the unwinding devices and thus the conveying speed of the endless substrate belt during the normal operating state (unwinding) during which the endless substrate belt is unwound from one of the rollers to provide endless substrate belt braking means in the conveying direction of the endless substrate between the connecting device and the level variable buffer to be able to adjust the conveying speed of the endless substrate even with this endless substrate belt brake means, even if this of all, currently on the Unwinding located rollers, in particular roller cores or unwinding devices, is detached.
  • the invention by providing continuous substrate belt braking means arranged in the endless substrate conveying direction between the connecting device and the intermediate storage device, it is possible (and implemented within the scope of the invention) to adjust the conveying speed of the endless substrate belt which then has a free end, ie end connected to none of the unwinding devices to decelerate as completely as possible, if necessary, except for a small remainder for the packaging tube production process, to use the substrate strip unwound from the unwinding devices or the rolls arranged thereon.
  • the braking function or conveying speed setting function hitherto provided by the braking means of the corresponding unwinding device is taken over by the aforesaid continuous substrate belt braking means to avoid collapse of the mechanical substrate belt tension, especially the latter
  • the endless substrate belt braking means are designed so that the endless substrate enters the buffer with at least approximately the same conveying speed as it is drawn from the buffer into the tube manufacturing process.
  • This outgoing conveying speed can be measured for this purpose and / or is the control means known due to the activation of a corresponding (pulling) drive motor.
  • a corresponding (pulling) drive motor For the preferred case of the use of an electric motor as a drive for a brake roller this is operated at a specific speed, preferably at least approximately corresponds to the conveying speed of the endless substrate tape in the tube manufacturing process.
  • the braking power of the endless substrate belt brake means and thus the conveying speed of the endless substrate belt to be set or adjusted by implementing a corresponding control loop as a function of the continuous substrate belt level, preferably as a roller storage.
  • the endless substrate tape no longer has to be severed as long as it is still connected to an almost unwound roll (in particular its roll core) on one of the unwinding devices, but a free end of the endless substrate belt can continue in the direction of the connecting device, preferably to the connecting device, in particular to be provided in the context of the connection device, later to be explained release agents, preferably in the form of a cutting knife promoted, in particular drawn, without the risk of strong substrate strip voltage fluctuations in the buffer and the subsequent process results, in particular the reliability of the proposed in the packaging tube manufacturing process forming and welding process would endanger.
  • the endless substrate belt braking means Due to the provision of the endless substrate belt braking means, it is also possible and preferably provided to provide more than two unwinding units with associated braking means so as to reduce the overall reel change frequency, wherein reel change preferably occurs only when all but one reel positioned on the reelers are empty , Thus, the coherent period of time available to a machine operator for other activities becomes greater. Due to the conveying speed adjustment according to the invention of the continuous substrate belt over the additional endless substrate belt braking means, even if more than two unwinding devices are provided, the total waste is not increased, since at least a large part of the substrate belt between the unwinding devices and the connecting device can be transported further to the connecting device and thus used in the later packaging tube production process.
  • level sensor means are provided, with which the control means for driving the braking means of the unwinding devices are connected signal-conducting.
  • the distance between the roller sets, in particular the position of an adjustable roller sets, for level detection can be detected.
  • the control of the endless substrate belt brake means is to be effected as a buffer store
  • the sensor signal of the aforementioned filling level sensor means can be used to implement the corresponding control circuit.
  • the substrate belt braking means are disposed in a region in the endless substrate belt conveyance direction before any side trimming means for adjusting the endless substrate belt width, regardless of whether the latter are arranged in the conveying direction before or after the buffer.
  • a substrate belt is unwound from a first unwinding device, more specifically a roll arranged rotatably on this first unwinding device, this substrate belt (endless substrate belt) moving from the reel to a connecting device, from the connecting device to endless substrate belt braking means and from there to a level-variable buffer (substrate belt accumulator).
  • the endless substrate belt is pulled by means of a downstream of the buffer in the conveying direction of the endless substrate belt.
  • a continuous substrate tape (this term is not to be understood literally) is understood to mean the substrate strip, which is at least temporarily formed by at least two substrate tapes and which from in an area in the conveying direction of Endlossubstratbandes before the connection device into the buffer and through this in the packaging tube manufacturing process runs.
  • the endless substrate belt is the portion that extends at least from the connecting means (and even during the unwinding operation, even from the associated reel or unwinding device) to a subsequent forming and welding process.
  • the temporary store is preferably a roller store with a movable roller set, which is subjected to a force of force from a further set of rollers in order to maintain a defined substrate tension of the endless substrate belt in order to maintain the substrate tension.
  • the endless substrate tape By means of the connecting device then the endless substrate tape, preferably after the separation of a (preferably short) end piece with a front end of a substrate tape of a second unwinding device, more precisely a second reel arranged on the second unwinding second roller connected.
  • the conveying speed is then set by the braking means of the second unwinding device as a function of the intermediate storage level, and preferably no longer by the endless substrate belt brake means.
  • the endless substrate strip can automatically detach from the roll, in particular tear off, in particular by detaching an adhesive bond due to the substrate tension acting on the substrate strip when the roll is unwound. It is also conceivable according to an alternative embodiment, in particular shortly before emptying the Roll the endless substrate belt actively with a corresponding cutter from a minimum, then remaining on the roll remaining piece to separate. In both cases, significantly more substrate strip material from the roll can be used for the actual manufacturing process than in the prior art.
  • the continuous substrate belt is preferably associated with endless substrate belt clamping means, preferably in the conveying direction before the endless substrate belt braking means, for holding the endless substrate belt during connection with the substrate belt of the second or filled unwinding device. Due to the clamped holding of the continuous substrate belt in the conveying direction in front of the intermediate storage device, it is then automatically emptied until the substrate belt is unwound from the second or new roll or the endless substrate belt is lengthened.
  • control means control the endless substrate belt braking means as a function of a position to be detected of the free end of the endless substrate belt such that, in particular shortly before the aforesaid free end reaches the aforesaid endless substrate belt clamping means increases its braking action (by corresponding activation) a precise "Zu tactile” or “positionally accurate holding” of the endless substrate tape is ensured by means of the endless substrate tape clamping means.
  • drive the endless substrate belt braking means which will be explained in detail later, to a low drive speed, preferably to zero.
  • the braking force of the endless substrate belt brake means with a brake roller can be applied to the endless substrate belt, wherein the brake roller can be driven by means of a drive, in particular an electric motor (preferably a servomotor).
  • the braking effect preferably results on a frictional force, in particular a static frictional force, between the brake roller and the endless substrate belt in the contact region.
  • the drive prevents unwanted acceleration of the endless substrate belt due to the longitudinal tension of the endless substrate belt between the rollers of the buffer. It has proved to be particularly advantageous if the brake pressure roller is associated with a preferably passive counterpressure element, in particular a counterpressure roller, wherein the counterpressure element with the brake roller delimits a receiving gap for, in particular, clamping the substrate strip.
  • the brake roller prefferably be coupled to the drive, in particular to a drive shaft driven by the drive, via an overrunning clutch, for the rotational movement of the brake roller in a direction of rotation of a drive torque of the drive motor directed in particular against the substrate conveying direction or a drive rotational movement of the drive shaft to decouple.
  • An embodiment is very particularly preferred with radially arranged between the aforementioned drive shaft and the brake roller overrunning clutch, of course, other constructions are possible. It is particularly preferred if the brake roller is driven by the drive motor such that the drive rotational direction coincides in the contact region of the endless substrate belt with the conveying direction of the endless substrate belt.
  • the drive and in particular a driven by the drive shaft for the brake roller rotates faster than the brake roller, which assumes the same peripheral speed in normal operation as the peripheral speed of each currently currently connected via the endless substrate endless belt unwinding.
  • the brake roller in the contact region to the endless substrate at the same speed as the endless belt endless belt the angular velocity of the brake roller due to the freewheel (something) may be lower than that of the decoupled via the overrunning clutch drive shaft, whereby the drive can run permanently and the braking effect automatically only occurs when the endless substrate belt is suddenly accelerated so much that its conveying speed (briefly) reaches or exceeds the speed of the brake roller in the contact area.
  • the reaction times are kept extremely short, whereby mechanical voltage fluctuations of the substrate strip are reduced to a minimum.
  • the overrunning clutch it is possible to move the endless substrate belt against the (transport) conveying direction for a short time, for example to adjust the aforementioned, preferably provided endless substrate belt clamping means, in particular to bring them into alignment with those to be explained later Input side of the connecting means provided substrate clamping means of the next intended or to be connected role.
  • control means the decoupled via the one-way clutch from the brake roller in a rotational direction drive for the brake roller, in particular during Abwickel ceremoniessShes, in which moves connected to a roll Endlossubstratband towards connecting means , are designed to be such that the preferably provided drive shaft for the brake roller rotates at a, in particular between 1% and 10%, preferably between 1% and 6% and very particularly preferably about 3% greater rotational angular velocity than the brake roller to (during this faster rotation) to cancel the braking action of the endless substrate belt braking means.
  • the slightly faster rotational speed ensures that the braking effect is immediately effective for the moment of detachment of the endless substrate belt from the idler roller.
  • endless substrate belt clamping means for holding the endless substrate belt to be associated with another (from a fresh one of the rollers) substrate belt and that each Unwinding substrate substrate clamping means for clamping the coming of the respective roll substrate band are assigned during the connection to the endless substrate tape.
  • the substrate band clamping means are arranged on the input side of the connection device and the endless substrate band clamping means on the output side of the connection device.
  • the endless substrate belt clamping means and the substrate clamping means are relative to one another, preferably in position, for example translationally or rotationally, ie vertically, adjustable to the substrate belt clamping means of the continuous substrate belt connecting substrate tape during the actual bonding step in the same plane as the endless substrate tape clamping means.
  • this Relativverstell mecanickeit is realized by an active adjustment of Endlossubstratbandklemmstoff, for which purpose the Endlossubstratbandklemmstoffn preferably a corresponding adjustment is assigned.
  • the endless substrate belt braking means can be activated after the release operating state in a Abbrems jossschreib of the control means in response to a detected by means of suitable detection means position of the free (rear) end of the endless substrate belt, such that the braking effect of the endless substrate belt braking agent increases is, in particular, shortly before the aforementioned free end reaches the endless substrate tape clamping means to reduce the conveying speed of the free end (with simultaneous greater emptying of the buffer) of the endless substrate tape before unfolding the clamping action of the endless substrate tape clamping means, with the result that a more accurate access Holding an end portion of the endless substrate belt is made possible.
  • the rotational speed of the drive to realize this stronger braking effect is preferred compared to a normal conveying speed significantly, in particular by at least 50%, more preferably reduced by at least 80% and very particularly preferably zero.
  • the device is in an area in the conveying direction of the respective substrate strip between an unwinding device and the connecting device has guiding and / or braking means for guiding and / or braking the substrate tapes, in particular after being detached from the associated roller, in particular a roll core.
  • the braking means comparatively weak, so that a comparatively low friction effect acts on the respective substrate strip, which ensures that the detached substrate strip is held under a certain prestress and an uncontrolled fluttering around is prevented.
  • the braking means can be activated only at the time of detachment or (briefly) beforehand, wherein a corresponding activation preferably takes place via the control means.
  • a particularly advantageous embodiment variant results when the brake fluid clamps, in particular equipped with a soft material (padding material), in particular felt clamps include.
  • the braking action of the braking means should, in particular, be lower than the braking effect of the brake means of the unwinding units and / or of the endless substrate belt brake means.
  • the guide means comprise supportive beds or pads for the substrate tapes which prevent the respective free ends of the respective substrate tapes detached from the associated roll from falling freely downwards.
  • the connecting device at least one, preferably exclusively a severing knife for severing one end of the endless substrate belt prior to bonding to a further substrate belt, in particular to sever an irregular and / or adhesive remnant endless substrate belt end or to determine that such unclean end does not terminate in the actual production process.
  • a separating knife which together or preferably independent of preferably provided Endlossubstratbandklemmffenn is adjustable relative to Substratbandklemmstoffn.
  • such a separating knife (release agent) in the region of the connecting device can be dispensed with, if either the substrate tape is not glued to a roll core and thus a clean or regular substrate tape end is ensured or if according to a particular embodiment, a separation mechanism is provided in the region of the respective unwinding device , with which, shortly before the final roll emptying, the endless substrate strip is actively separated from a small residue remaining on the roll.
  • the invention also leads to a method for feeding roll-wound substrate tapes, in particular laminate tapes, into a packaging tube manufacturing process, preferably using a device designed according to the concept of the invention.
  • Rolls with several hundred meters of substrate strip are preferably used within the scope of the method and / or the device, typically rollers with between 500 and 1,500 meters of substrate strip, in particular tube laminate strip.
  • the material thickness (thickness) of the substrate strip, in particular of the laminate selected between 120 ⁇ m and 480 ⁇ m.
  • At the heart of the method according to the invention is the conveying speed and thus the mechanical tension or prestressing of the substrate strip during a detaching operating state in which the endless substrate belt has a free, i. not yet connected to the substrate band of a full roll end has to adjust, namely with Endlossubstratbandbremsstoffn whose effective braking performance, in particular depending on the conveying speed of the continuous substrate tape in the actual tube manufacturing process after the buffer is set.
  • the endless substrate tape is clamped by endless substrate tape clamping means during the actual bonding process so that the buffer is automatically emptied.
  • the buffer is refilled by then releasing the braking means of the then currently operating in unwinding devices under the bias until the buffer is filled. Thereafter, it is then preferably regulated to the new filling position, in particular roller set position in a roller storage, in which the buffer is at least approximately (almost) full. Since there can not be an ideal control, "full” in this context means that preferably there is still a small reserve for controller deviations. The same applies to "empty".
  • control means are preferably designed so that in all operating states of the buffer (full, empty, fill, empty) in normal operation and emptying when clamped in the connecting device Endlossubstratband the mechanical longitudinal stress within the substrate strip is not or only insignificantly changed.
  • This longitudinal tension is preferably maintained by pulling or pushing away the movable member from the fixed roller set of a roller-type buffer via suitable spacing means, in particular the pressure in a cylinder.
  • the endless substrate belt braking means comprise a freewheeling function which allows the endless belt to be pulled out of the buffer against the endless substrate conveying direction, whereby a drive shaft decoupled from the braking roller in a rotational direction by the freewheeling function is operated at a higher rotational speed than the roller, to which the endless substrate belt is connected in the unwinding state (respectively).
  • a free Endlosubstratbandende which either automatically detached from a roll, in particular simply unwound or torn off or alternatively actively separated from a minimally remaining on the roll remainder, in particular cut, before joining to a substrate tape from a full Roller in the direction of connection device, preferably conveyed over a distance of at least one meter, preferably of several meters. This amount, which has now been promoted as part of the process, constitutes waste in the prior art.
  • the device 1 comprises a plurality of, here a total of four unwinding devices A 1 , B 1 , C 1 , D 1 with integral, not shown and designated braking means. Furthermore, the apparatus 1 comprises a connecting device 4 downstream of the unwinding devices A 1 to D 1 in the conveying direction of the substrate belts A 'to D'.
  • the substrate tapes are preferably fastened to one another with the aid of an adhesive tape (tape). Additionally or alternatively, substrate tapes can also be glued and / or welded.
  • Subordinate to the connecting device 4 in a continuous substrate conveying direction F are endless adhesive ribbon braking means 5, which are arranged downstream of a level variable buffer 6 (substrate belt accumulator) downstream of the conveying direction F.
  • a roller storage with two roller sets 7 which are adjustable relative to each other, 8, wherein in the schematic representation of the latch 6 on the left a filled and in the representation right an emptied buffer is shown.
  • Subordinate to the buffer 6 in the conveying direction is a motor M, with which the endless substrate belt E is pulled through the connecting device 4 by the endless substrate belt braking means 5 and the buffer 6.
  • the motor M can also be arranged downstream of the forming and welding means 3. It is also conceivable that several motors are provided for voltage decoupling in different conveyor sections.
  • the substrate tape C 'forms the endless substrate belt E.
  • the endless substrate belt E is connected to the take-up device C1 and thus to this unwinding device C1, and unwound from this roll C in an unwinding state, the conveying speed of the endless belt E (FIG. in each case the currently conveyed substrate strip) is set by the braking means of the unwinding device C1, specifically as a function of the endless substrate belt level of the buffer 6, which is suitably detected, for example Sensor means associated with the movable roller set 7, in particular position sensor means, which are connected in signal-conducting manner with suitable control means, not shown, for actuating the braking means of the unwinding devices.
  • the braking power for adjusting, in particular for keeping constant, the substrate strip voltage is varied.
  • the substrate strip tension results from the schematically indicated force F S in the buffer 6, with which the movable roller set 7 is acted upon in a direction away from the fixed roller set 8.
  • the endless substrate belt braking means 5 are preferably controlled in such a way that the conveying speed of the endless substrate belt in an area in front of the buffer corresponds at least approximately to the conveying speed of the endless substrate belt in an area in the conveying direction behind the intermediate storage and thus the process conveying speed of a downstream tube production process.
  • the endless substrate belt braking means 5 comprise a braking roller 9 which, with a counterpressure roller 10, delimits a gap for the endless substrate belt E. In other words, the brake roller 9 and the platen roller 10 sandwich the endless substrate belt C therebetween.
  • the brake roller 9 is decoupled via a freewheel (overrunning clutch), not shown, by a drive shaft 11 driven by means of a drive, not shown.
  • the drive drives the drive shaft and the brake roller 9 in the direction of arrow 12 and thus in the substrate conveying direction F, ie in the exemplary embodiment shown in the clockwise direction.
  • the freewheel function allows a free rotation of the brake roller 9 in the opposite direction of rotation, that in the embodiment in the counterclockwise direction (or against the Endlossubstratbandage substances F).
  • the drive shaft 11 is driven at a slightly greater rotational angular velocity than the current rotational angular velocity of the brake roller determined by the unwinding speed of the endless substrate belt from the current roll.
  • the brake roller would rotate faster (namely, with the rotational speed of the drive or a drive shaft) than the current conveying speed of the endless substrate belt.
  • the brake roller When detaching the endless substrate tape E from the respective roll, it is initially accelerated comparatively strongly due to the effect of the intermediate storage or the adjusting or drive means acting on it for spacing sets of rolls of the intermediate storage means, until it moves away from the endless substrate belt E or from there Rotated brake roller 9 reaches the rotational speed of the drive shaft 11, so that then immediately enters the braking effect.
  • Fig. 1 only on a substrate strand indicated guiding and / or braking means 13, which for a small mechanical Longitudinal stress (the force applied by the braking means results in a lower substrate band tension than the substrate longitudinal tension reached by the adjusting means (preferably a compression or tension cylinder) of the substrate) on the way to the connecting device 4, in particular after detachment from the associated role concern ,
  • the connecting device 4 reaches the endless substrate tape E, which in the illustration in FIG Fig. 1 First comes from the roller C, connected to the substrate tape another one of the rollers A, B, D, for which, as will be explained later, the endless substrate tape E is stopped or clamped in a region in the conveying direction F in front of the buffer 6, whereby the buffer 6 empties during this period of connection.
  • the substrate strip E is then partially formed by the substrate strip C 'and another (new) substrate strip, in particular the substrate strip D'.
  • the position of the free end of the endless substrate belt E is detected with suitable detection means and the endless substrate belt braking means decelerate this free end before reaching the endless substrate belt clamping means to ensure optimum clamping action.
  • the braking effect is increased by reducing the number of revolutions of the drive of the endless substrate belt braking means 5, preferably to zero.
  • a roll change is only necessary when three of the four rolls have been emptied and sufficient residue remains on one of the rolls to maintain the feeding process during the change.
  • the connecting device 4 comprises four connecting means A c , B c , C c , D c , here each an adhesive tape applicator (tape applicator) with a new substrate tape with the endless substrate tape, which is formed at the end of a unwinding preferably by the substrate tape only a single role connected becomes.
  • Substrate tape clamping means A S to D S are assigned to each substrate tape A 'to D' for clamping the substrate tape in a region in the conveying direction in front of the connecting means A c to D c .
  • the endless substrate tape E is associated with endless substrate belt clamping means 15, with which the endless substrate belt 15 can be clamped in a region in the conveying direction between the connection means A c to D c and the endless substrate belt brake means 5.
  • a short end section of the endless substrate belt E is first separated by means of a separating knife drive 16 driven by a separating agent drive 14 (an example as a release agent) to ensure a clean end, wherein this separation step, as in the general Description explained, then can be waived when care for a residue-free design of the free end of the substrate strip E care is / is.
  • both the substrate belt B 'and the endless substrate belt E are clamped, specifically the substrate belt B' by means of the substrate belt clamping means B s , which press the substrate belt B 'onto an input-side substrate support 17.
  • the endless substrate belt E is pressed by the endless substrate belt clamping means 15 against an adjustable endless substrate belt support 18.
  • the endless substrate belt support 18 and the substrate belt support 17 are in the same plane, which is ensured by active adjustment of the endless substrate belt support 18, for example by means of a lift 24 together with the endless substrate clamping means 15.
  • the bonding of the substrate strip B 'to the endless substrate tape E takes place via an adhesive tape 19 (alternative connection possibilities can be realized), the adhesive tape 19 being applied by means of the connection means B c .
  • the endless substrate band clamping means 18 and the substrate band clamping means B s are released and the endless substrate band E now formed in sections by the substrate band B 'can be further conveyed into the buffer, wherein the adjustment of the conveying speed is now no longer by means of the endless substrate band braking means 5, but merely is reacted with the braking means of the unwinding device B1.
  • the buffer is refilled and regulated after filling to the (new) level.
  • the endless substrate belt clamping means 15 Prior to bonding the endless substrate tape E then formed by the substrate belt B ', the endless substrate belt clamping means 15 are height adjusted together with the endless substrate belt support 18 and the severing blade 16 to the next on-line substrate belt, for example the substrate belt C'.
  • Fig. 3 an embodiment for guiding and braking means 13 is shown, with which a region of the endless substrate belt E in the conveying direction in front of the connecting device 4 to prevent uncontrolled fluttering after a detachment from the associated role and to maintain a small mechanical longitudinal tension.
  • the endless substrate tape E which is clamped between a with a cushioning material 20, here for example felt-coated clamping jaw 21, with which the endless substrate tape E against a clamping element 22, in particular a padding element, for example a felt element can be pressed.
  • actuator an example designed as a pneumatic cylinder (actuator) is provided.
  • Guide means in the form of a lateral guide 23 are provided in the above-described braking means in order to ensure lateral falling out of the endless substrate tape end section.
  • the side guide 23 is formed so that it engages the endless substrate tape E in sections.

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Replacement Of Web Rolls (AREA)

Claims (16)

  1. Dispositif d'amenée de bandes de substrat (A', B', C', D'), réalisées comme bandes de tube laminé et enroulées sur des bobines (A, B, C, D), dans un processus de fabrication de tubes d'emballage
    - comprenant un premier dispositif de déroulage (A1) ayant des moyens de freinage et destiné à la réception interchangeable d'une première bobine (A) afin de dérouler de la bande de substrat (A') de la première bobine (A),
    - comprenant au moins un deuxième dispositif de déroulage (B1) ayant des moyens de freinage et destiné à la réception interchangeable d'une deuxième bobine (B) afin de dérouler de la bande de substrat (B') de la deuxième bobine (B),
    - comprenant un dispositif de liaison (4) en aval des dispositifs de déroulage (A1, B1, C1, D1) qui est destiné à relier une bande de substrat (A', B', C', D') d'une bobine (A, B, C, D) disposée sur un des dispositifs de déroulage (A1, B1, C1, D1) avec une bande de substrat sans fin (E),
    - comprenant un dispositif de stockage intermédiaire (6) variable en niveau de remplissage en aval du dispositif de liaison qui est destiné au stockage intermédiaire de la bande de substrat sans fin (E) pour le processus de fabrication de tubes d'emballage,
    - comprenant des moyens de commande qui sont configurés pur commander les moyens de freinage des dispositifs de déroulage afin de régler la vitesse de déroulement respective en fonction du niveau de remplissage de la bande de substrat sans fin du dispositif de stockage intermédiaire (6) dans un mode de fonctionnement de déroulage,
    caractérisé en ce que
    des moyens de freinage (5) de la bande de substrat sans fin destinés à limiter une vitesse de transport de la bande de substrat sans fin (E) sont disposés entre le dispositif de liaison (4) et le dispositif de stockage intermédiaire (6) dans la direction de transport (F) du substrat sans fin, les moyens de freinage (5) pouvant être commandés par les moyens de commande dans un mode de fonctionnement de détachement, dans lequel la bande de substrat sans fin (E) n'est plus liée à aucune des bobines (A, B, C, D) disposées sur les dispositifs de déroulage (A1, B1, C1, D1) et son extrémité libre se déplace dans la direction du dispositif de liaison (4), de telle manière que la vitesse de transport d'entrée de la bande de substrat sans fin (E) dans le dispositif de stockage intermédiaire (6) et la tension de la bande de substrat sans fin (E) dans la direction de transport (F) du substrat sans fin peuvent être réglées en amont du dispositif de stockage intermédiaire (6).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    les moyens de freinage (4) de la bande de substrat sans fin ont un rouleau de freinage (9) qui peut être entraîné par un dispositif d'entraînement, notamment par un moteur électrique (M), et qui sert à venir en contact avec la bande de substrat sans fin (E), le rouleau de pression de freinage de préférence délimitant, avec un élément de contrepression, notamment un rouleau de contrepression, une fente de réception pour la réception, notamment serrante, de la bande de substrat (A', B', C', D').
  3. Dispositif selon la revendication 2,
    caractérisé en ce que
    le rouleau de freinage (9) est couplé au dispositif d'entraînement par un embrayage à roue libre afin de découpler le mouvement de rotation du rouleau de freinage (9) d'un couple du dispositif d'entraînement dans une direction de rotation, notamment contraire à la direction de transport du substrat.
  4. Dispositif selon la revendication 3,
    caractérisé en ce que
    les moyens de commande sont configurés pour commander le dispositif d'entraînement, notamment dans le mode de fonctionnement de déroulage, de telle manière qu'un arbre d'entraînement pour le rouleau de freinage (9) tourne à une vitesse angulaire de rotation d'entre 1 % et 10 %, de préférence entre 2 % et 6 %, supérieure à celle du rouleau de freinage (9) afin d'annuler l'effet de freinage des moyens de freinage (4) de la bande de substrat sans fin.
  5. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    des moyens de serrage (15) de la bande de substrat sans fin destinés à tenir la bande de substrat sans fins (E) lorsqu'elle est reliée avec une autre bande de substrat (A', B', C', D') sont associés à la bande de substrat sans fin (E) et en ce que des moyens de serrage de substrat destinés à serrer la bande de substrat (A', B', C', D') venant de la bobine (A, B, C, D) respective lorsqu'elle est reliée avec la bande de substrat sans fin (E) sont associés à chaque unité de déroulage.
  6. Dispositif selon la revendication 5,
    caractérisé en ce que
    les moyens de serrage (15) de la bande de substrat sans fin peuvent être ajustés, de préférence verticalement et/ou en rotation, par rapport aux moyens de serrage (AS, BS, CS, DS) de substrat, de préférence disposés de manière fixe, par un dispositif d'entraînement d'ajustement.
  7. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le dispositif (1) a des moyens de guidage et/ou freinage (13), notamment des mâchoires rembourrées, pour guider et/ou freiner les bandes de substrat (A', B', C', D') dans une zone entre les dispositifs de déroulage (A1, B1, C1, D1) et le(s) dispositifs) de liaison.
  8. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    plus de deux dispositifs de déroulage (A1, B1, C1, D1), chacun ayant des moyens de freinage, sont prévus chacun pour la réception interchangeable d'une bobine (A, B, C, D) afin de dérouler de la bande de substrat (A', B', C', D') de cette bobine (A, B, C, D).
  9. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le dispositif de liaison (4) a des moyens de découpe, de préférence au moins un couteau de découpe (16), préférentiellement seulement un couteau de découpe, pour découper une extrémité arrière de la bande de substrat sans fin (E) dans la direction de transport avant la liaison avec une autre bande de substrat (A', B', C', D').
  10. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les moyens de commande sont configurés pour commander les moyens de freinage (5) de la bande de substrat sans fin en fonction d'une position d'une extrémité libre de la bande de substrat sans fin, notamment de telle manière que l'effet de freinage est augmenté avant que l'extrémité libre atteigne les moyens de serrage de la bande de substrat sans fin.
  11. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le dispositif a des moyens de découpage latéral pour ajuster une largeur de la bande de substrat sans fin et en ce que les moyens de freinage (5) de la bande de substrat sans fin sont disposés an amont, notamment à distance, des moyens de découpage latéral dans la direction de transport (F) de la bande de substrat sans fin (E).
  12. Procédé d'amenée de bandes de substrat (A', B', C', D'), réalisées comme bandes de tube laminé et enroulées sur des bobines (A, B, C, D), dans un processus de fabrication de tubes d'emballage, de préférence utilisant un dispositif (1) selon l'une quelconque des revendications précédentes, dans lequel, pendant le déroulement de la bande de substrat (A', B', C', D') d'une de plusieurs bobines (A, B, C, D) dans un mode de fonctionnement de déroulage, la vitesse de déroulement de ladite bobine (A, B, C, D) est réglée en commandant des moyens de freinage en fonction d'un niveau de remplissage de la bande de substrat sans fin d'un dispositif de stockage intermédiaire (6) variable en niveau de remplissage et dans lequel, après le détachement de la bande de substrat sans fin (E) de la bobine (A, B, C, D), une bande de substrat (A', B', C', D') d'une autre des bobines (A, B, C, D) est reliée avec la bande de substrat sans fin (E) stockée de manière intermédiaire dans le dispositif de stockage intermédiaire (6) par un dispositif de liaison (4),
    caractérisé en ce que
    la vitesse de transport d'entrée de la bande de substrat sans fin (E) dans le dispositif de stockage intermédiaire (6) et la tension de la bande de substrat sans fin (E) dans la direction de transport (F) de la bande de substrat sans fin sont réglées en amont du dispositif de stockage intermédiaire (6) dans un mode de fonctionnement de détachement, dans lequel la bande de substrat sans fin (E) n'est pas encore reliée à une bande de substrat (A', B', C', D') d'une des bobines (A, B, C, D) et son extrémité libre se déplace dans la direction du dispositif de liaison (4).
  13. Procédé selon la revendication 12,
    caractérisé en ce que
    des moyens de freinage (5) de la bande de substrat sans fin qui ont une fonction à roue libre sont prévus pour le réglage de la vitesse de transport de la bande de substrat sans fin (E) et en ce qu'un arbre d'entraînement découplé du rouleau de freinage (9) dans une direction de rotation par la fonction à roue libre est entraîné à une vitesse de rotation supérieure à celle de la bobine avec laquelle la bande de substrat sans fin (E) est reliée dans le mode de fonctionnement de déroulage.
  14. Procédé selon la revendication 12 ou 13,
    caractérisé en ce
    qu'une extrémité libre de la bande de substrat sans fin est transportée dans la direction du dispositif de liaison, préférentiellement par une voie d'au moins un mètre, de préférence plusieurs mètres, avant la liaison avec une bande de substrat (A', B', C', D') d'une des bobines (A, B, C, D)
  15. Procédé selon l'une quelconque des revendications 12 à 14,
    caractérisé en ce que
    plus de deux dispositifs de déroulage (A1, B1, C1, D1) munis de moyens de freinage associés sont prévus et en ce qu'un changement de bobine est effectué quand toutes bobines (A, B, C, D) situées sur les dispositifs de déroulage (A1, B1, C1, D1) sont vides à l'exception d'une bobine qui n'est pas encore vide.
  16. Procédé selon l'une quelconque des revendications 12 à 15,
    caractérisé en ce que
    la vitesse de transport d'une extrémité libre de la bande de substrat sans fin (E) est réduite dans un mode de fonctionnement de détachement, notamment par l'augmentation de l'effet de freinage des moyens de freinage (5) de la bande de substrat sans fin, ce qui réduit le niveau de remplissage de la bande de substrat sans fin du dispositif de stockage intermédiaire, notamment lorsque la vitesse de prélèvement de la bande de substrat sans fin du dispositif de stockage intermédiaire reste constant.
EP15194527.6A 2014-11-13 2015-11-13 Dispositif d'amenee de substrat pour un procede de fabrication de tubes d'emballage et procede d'amenee de substrat Active EP3023374B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014116615.9A DE102014116615A1 (de) 2014-11-13 2014-11-13 Substratzuführvorrichtung für ein Verpackungstubenherstellungsprozess sowie Substratzuführverfahren

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EP3023374A9 EP3023374A9 (fr) 2016-09-28
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CN113772462A (zh) * 2021-10-25 2021-12-10 上海旭虹精密模具制造有限公司 一种卷料上料装置
CN114408268B (zh) * 2022-02-17 2022-11-08 湖北实美科技有限公司 一种铝型材产品覆膜设备

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DE3727339A1 (de) * 1987-08-17 1989-03-02 Hans Beck Vorrichtung zum wechseln von auf eine vorratsrolle aufgewickelten folienbahnen
DE4311129A1 (de) * 1993-04-05 1994-10-06 Alfill Getraenketechnik Verfahren und Vorrichtung zum Fördern einer Materialbahn
DE10159529A1 (de) * 2001-12-05 2003-06-26 Focke & Co Verfahren und Vorrichtung zum Verbinden von Materialbahnen
JP2006504001A (ja) 2002-11-04 2006-02-02 ザ プロクター アンド ギャンブル カンパニー 反対に帯電したポリマー類を含む布地処理組成物
JP5329936B2 (ja) * 2008-12-15 2013-10-30 大森機械工業株式会社 フィルム継ぎ装置
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JP2012140248A (ja) * 2010-12-13 2012-07-26 Sanwa Jidoki Seisakusho:Kk フィルムシート継ぎ方法及び装置
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EP3023374A1 (fr) 2016-05-25
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