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WO2018162237A1 - Dispositif et procédé permettant la découpe d'une bande en une pluralité de morceaux de bande individuels - Google Patents

Dispositif et procédé permettant la découpe d'une bande en une pluralité de morceaux de bande individuels Download PDF

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Publication number
WO2018162237A1
WO2018162237A1 PCT/EP2018/054264 EP2018054264W WO2018162237A1 WO 2018162237 A1 WO2018162237 A1 WO 2018162237A1 EP 2018054264 W EP2018054264 W EP 2018054264W WO 2018162237 A1 WO2018162237 A1 WO 2018162237A1
Authority
WO
WIPO (PCT)
Prior art keywords
rollers
pair
belt
band
laser beam
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.)
Ceased
Application number
PCT/EP2018/054264
Other languages
German (de)
English (en)
Inventor
Johannes Strobel
Manuel DUX
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.)
Cevotec GmbH
Baumann GmbH
Original Assignee
Cevotec GmbH
Baumann GmbH
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 Cevotec GmbH, Baumann GmbH filed Critical Cevotec GmbH
Publication of WO2018162237A1 publication Critical patent/WO2018162237A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/38—Removing material by boring or cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/083—Devices involving movement of the workpiece in at least one axial direction
    • B23K26/0838—Devices involving movement of the workpiece in at least one axial direction by using an endless conveyor belt
    • B23K26/0846—Devices involving movement of the workpiece in at least one axial direction by using an endless conveyor belt for moving elongated workpieces longitudinally, e.g. wire or strip material

Definitions

  • the invention relates to an apparatus and a method for severing a tape into a plurality of individual pieces of tape, and an apparatus and method for cutting at least a part of a tape or for introducing at least one recess in a band.
  • CFRP tapes carbon fiber reinforced plastic tapes
  • a device for severing a strip into a multiplicity of individual strip pieces comprises a feed device for a strip, in particular for a CFRP strip, which can be coated with a binder material, a so-called hot-melt, which is drivable in such a way that the strip can be fed with a particular constant transport speed; a first pair of rollers with oppositely driven rollers, through which the band is guided; a second, in particular stationary pair of rollers, in particular with counter-drivable rollers, which is arranged in the direction of passage of the band behind the first pair of rollers; a laser beam cutter arranged so and is formed such that the band between the first and the second pair of rollers is severable; and a control device configured to move the first pair of rollers in a forward movement section under a slowed rotational movement of the rollers or stopping movement of the rollers from an initial position to an end position toward the second roller pair, and at least during one Part of this forward movement section, the laser beam cutting device cuts
  • the cutting of the tape in free space between the two pairs of rollers is effected by a laser beam. This also ensures that no adhesion of the tape can take place on a substrate.
  • the laser beam cutting device is moved so that the laser beam cuts through the strip over its entire width, so that problems of impermissible severance are avoided.
  • the cutting of the tape takes place during the transport movement of the tape without the need to stop the feeding device or the second pair of rolls.
  • pauses in the transport movement which are often required in mechanical cutting processes, avoided. This leads to lower cycle times and a work result with more individual pieces of tape in the same period, compared with conventional production methods.
  • the device according to the invention allows different shapes of the separating edges.
  • tapes in particular plastic tapes, of any kind can be cut into pieces of tape, as long as they are only separated by a piece of tape.
  • NEN laser beam can be cut.
  • CFRP tapes are preferred.
  • the feed device, the two roller pairs and the laser beam cutting device can be synchronized with one another.
  • the belt can be fed reliably and synchronized to the two roller pairs and the laser beam cutting device.
  • the belt tension is maintained during the severing process, resulting in reliable cutting and clean cut edges.
  • the feed unit is in particular designed so that it supplies an endless belt to the first pair of rollers, in which case “endlessly” also means a band that is rolled up with great length onto a feed roller and is unrolled therefrom.
  • the first pair of rollers travels in the direction of passage of the belt and in particular also with its transport speed in the direction of the second pair of rollers.
  • the cutting process by the laser beam cutting device takes place.
  • the cutting of the tape by the laser beam thus takes place while the tape is being moved forward at its transport speed. This increases the efficiency of the process.
  • the transport speed must neither be throttled nor completely stopped. In terms of time, this separation process can take the entire forward movement section or just a part of it.
  • This separation process creates an on-the-fly cut in free space.
  • the cutting of the tape by the laser beam is thus pad-free.
  • the rollers of the first pair of rollers are at a standstill, or they rotate with a slowed down rotational motion.
  • the tape is thus kept constantly at tension during the separation process.
  • the first pair of rollers transfers the band section, which lies behind the separating edge in the direction of passage, to the second pair of rollers, so that this band section only over a very small distance of, in particular 10-150 mm unguided.
  • the tape section is picked up and continued by the second pair of rollers with the cutting edge of the tape lying in the forward direction of travel.
  • the first pair of rollers moves back in the reverse movement portion opposite to the passage direction of the tape.
  • the end position of the first pair of rollers is located in particular immediately before the second pair of rollers.
  • the stroke of the first pair of rollers can variably adapt to the patch length and width to be cut, ie the length and the width of the pieces of tape to be cut.
  • control means is further adapted to move the forward moving portion of the first pair of rollers from the starting position to the end position toward the second pair of rollers under a slowed movement of the rollers or stopping the movement of the rollers, during at least a part thereof Moving forward portion of the laser beam cutting device, the band between the first and the second pair of rollers, and the backward movement portion of the first pair of rollers with a faster movement of the rollers from the end position back to the starting position to perform a plurality of repetitions, so that the band is broken into a variety of pieces of tape. This can be made in a very efficient manner, without a reduction or even stopping the transport speed of the tape, a variety of tape pieces.
  • the first pair of rollers is designed so that the rollers of the first pair of rollers remain at an unchanged distance from one another during the forward movement section and during the rearward movement section.
  • the rollers are not opened. This reduces the effort compared to a constant opening and closing of the rollers of the first pair of rollers, and contributes to a high efficiency and process reliability.
  • the control device is further configured such that the first pair of rollers remains in the starting position for a transitional period before the forward movement section and their rollers are driven so that their peripheral speed corresponds to the transport speed of the belt. As a result, a greater length of the tape pieces can be achieved, because yes, the tape continues to run during the transitional period. The length of the band pieces can thus be changed easily and flexibly.
  • control device is further configured such that the rollers of the first pair of rollers are drivable during the rearward movement portion with the same rotational movement direction as the rollers of the second pair of rollers; and / or that the rollers of the first pair of rollers are drivable during the backward movement portion such that their peripheral speed corresponds to the sum of the transport speed of the band plus the speed of the backward movement of the first pair of rollers from the end position to the starting position.
  • the peripheral speed of the rollers of the first pair of rollers is equalized to the transport speed of the belt both during the forward movement section and during the reverse movement section, which is very effective and leads to a very high process reliability.
  • the feeding device is designed as a roller on which the band is wound in particular by means of an interposed carrier film.
  • the control device can continue to be designed such that the feed device is drivable so that the tape is fed to the first pair of rollers at a constant transport speed, in particular with separation of the carrier film.
  • This represents a particularly efficient feeding device.
  • the constant transport speed specified in this way also represents the throughput and delivery speed.
  • the interposed carrier film can be separated in a suitable manner during unrolling and during feeding of the strip to the first pair of rolls.
  • the first pair of rollers is mounted on a spindle axis, which is movable in the direction of passage of the belt to the second pair of rollers to the end position and from the second pair of rollers and towards the feeding device to the starting position.
  • the laser beam cutting device is arranged above the two pairs of rollers so that the impact area of the laser beam is located on the belt between the two roller pairs.
  • the laser beam cutting device is designed such that the laser beam over the entire width of the belt and / or a piece in the direction of travel and against the passage direction is movable
  • control device is further designed such that the band can be severed with an individually adjustable separation edge profile.
  • the separation edge course can have a straight, an oblique, a rounded or a more complex contour, z.
  • the separation edges of the band pieces can each receive a desired shape.
  • control means is further arranged to advance the first pair of rollers during the advancing section at a speed corresponding to the transport speed of the belt; and / or that the rollers of the first pair of rollers are stopped during the forward movement section.
  • a common belt drive for the feeder, for the first pair of rollers and for the rollers of the first pair of rollers which synchronizes the rotational speed of the rollers of the first pair of rollers and the unwinding speed of the feeder and thus the transport speed of the belt.
  • the controller and the common belt drive can be designed so that the two rollers of the first pair of rollers rotate at a standstill of the feed axis of the first pair of rollers at a peripheral speed corresponding to the unwinding speed of the feeder and thus the transport speed of the belt; and / or that the peripheral speed The speed of the rollers of the first pair of rollers automatically equalizes the transport speed of the belt.
  • the unwinding of the belt can be performed and thus both the transport speed and the speed and thus the peripheral speed of the rollers of the roller pair can be controlled. This can also be ensured that the two pairs of rollers rotate at standstill of the spindle axis of the spindle drive at the same speed.
  • the roller speed and the direction of rotation of the rollers of the roller pairs can be automatically adjusted to the transport speed.
  • the two pairs of rollers guide the band so that it is held under tension during the laser beam cutting by the rollers of the two pairs of rollers. This allows reliable cutting and a precise cutting edge.
  • a suction device is further provided, which is designed to freely suck the resulting from the laser beam cutting smoke.
  • the resulting smoke can be sucked off in a simple manner during the separation process.
  • a conveyor belt is provided which is arranged between the feed device and the first pair of rollers.
  • This conveyor belt is adapted to transport the tape from the feeder to the first pair of rollers.
  • Such a conveyor belt reliably transports the belt from the feeder to the first pair of rollers.
  • a conveyor belt is further provided, which is arranged in the direction of passage after the second pair of rollers and is adapted to take over the band pieces and to transport to a removal or picking position.
  • a conveyor belt reliably transports the tape pieces from the second pair of rollers to the picking or picking position.
  • the band is formed as a CFRP band and / or mixed with a binder material which has a melting temperature of 50-100 ° C, and / or is limp.
  • Such designed bands can be effectively cut with the device according to the invention method and avoiding sticking to a pad into individual pieces of tape.
  • the invention also relates to a device for cutting out at least one part from a band or for introducing at least one recess into a band, comprising a supply device for a band, in particular for a CFRP band, which is drivable so that the band with a particular constant Transport speed can be supplied; a first pair of rollers with oppositely driven rollers, through which the band is guided; a second, in particular stationary pair of rollers, in particular with counter-drivable rollers, which is arranged in the direction of passage of the band behind the first pair of rollers; a laser beam cutting device, which is arranged and formed so that between the first and the second pair of rollers at least a part of the band is cut out or at least one recess can be introduced into the band; and a control device configured to: move the first pair of rollers in a forward movement section under a slowed rotational movement of the rollers or stopping movement of the rollers from an initial position to an end position toward the second pair of rollers, and at least during part of this
  • any parts can be cut out of the band, which can then be used further. These parts / components can be cut out with any contours and thus have any shapes. After passing through the second pair of rollers, these cut-out parts can then be fed to a robot, which then packs them. In the- In this case, the rest of the band, which can also be referred to as a grid, be wound up and disposed of.
  • recesses may also be introduced into the band, in particular such recesses may form a lateral edge pattern and / or be formed as holes in the band.
  • a retractor is further provided, which is arranged after the second pair of rollers and adapted to roll up the tape.
  • the cut-out parts can also be provided for further use.
  • the inventively provided with recesses tape can be rolled up on a roll and sold after the finished rolling up completely as a role or further processed.
  • the cut-out parts may be sold or further processed.
  • the invention also relates to a method for severing a tape into a plurality of individual tape pieces, comprising the following steps: feeding a tape, in particular a CFRP tape, at a particularly constant transport speed; Guiding the belt through a first pair of rollers whose rollers are driven in opposite directions; Moving the first pair of rollers in a forward movement section under a slowed rotational movement of the rollers or stopping the movement of the rollers from an initial position to an end position toward the second pair of rollers; Cutting the tape at least during a part of this forward movement section by a laser beam cutter after the first and before a second roller pair; Feeding the front separating edge of the Bands to the second, in particular stationary Waizencru whose rolls are driven in opposite directions; and moving the first pair of rollers in a rearward travel portion with faster rotational movement of the rollers from the end position back to the home position.
  • a tape in particular a CFRP tape
  • the invention also relates to a method for cutting out at least one part from a band or for introducing at least one recess into a band, comprising the following steps: feeding a band, in particular a CFRP band, at a particularly constant transport speed; Guiding the belt through a first pair of rollers whose rollers are driven in opposite directions; Moving the first pair of rollers in a forward movement section under a slowed rotational movement of the rollers or stopping the movement of the rollers from an initial position to an end position towards a second pair of rollers; Cutting at least a part of a band or inserting at least one recess in the band by a laser beam cutting device after the first and before a second pair of rollers, during at least a part of this forward movement section; Feeding the tape and / or the cut-out part to the second, in particular stationary, pair of rolls whose rolls are driven in opposite directions; and moving the first pair of rollers in a rearward travel portion with faster rotational movement of the rollers from the end position back to the
  • the advantages and embodiments described above with reference to the device for cutting out at least one part from a band or for introducing at least one recess into a band also apply in procedural correspondence to the method according to the invention for cutting out at least one part from a band or for introducing at least one Recess in a band too. These advantages and embodiments are not explained again to avoid repetition.
  • the separation process according to the invention is virtually wear-free, since it takes place completely outside. During the separation process, a defined tension acts on the belt.
  • the on-the-fly principle makes cycle times relatively easy to reduce. According to the invention, no complex control loops are required, and the repeatability of the process is high.
  • the individual pieces of tape can also be referred to as patches.
  • the width, length and separation edge shape of the band pieces are freely selectable. Within the laser range, ie between the two pairs of rollers are preferably no components. Because of the CFRP fibers, there is no wear and no abrasion because the peripheral speed of the rollers and the belt speed are identical due to the common drive.
  • the roller pairs can also be referred to as calenders.
  • a process-reliable and synchronized feeding of CFRP flat strip material and its sections over a free space into a laser beam cutting device as well as the maintenance of the belt tension during the separation process takes place.
  • adhesion of the cut strip to a base is reliably prevented, and an undefined position is avoided.
  • the laser beam cutter is synchronized with the transport speed of the belt.
  • Figure 1 shows a schematic representation of an apparatus for severing a tape into a plurality of individual pieces of tape, with a feeder, with a first conveyor belt, with a first pair of rollers, with a laser beam cutter, with a second pair of rollers, with a second conveyor and with a robot and with a continuous in the direction of passage CFK tape, according to a first embodiment of the present invention
  • Fig. 2 (a) and Fig. 2 (b) respectively show the belt dicing apparatus of Fig. 1 during a forward movement portion of the first roller pair and during the cutting of the CFK tape by the laser beam cutter;
  • Fig. 3 (a) and Fig. 3 (b) show the belt dicing apparatus of Figs. 1 and 2 during the forward movement portion of the first roller pair and after the cutting of the CFK tape by the laser beam cutter;
  • Figure 4 shows the band divergence device with the first pair of rollers in the end position at the end of the forward movement section ( Figure 4 (a)) and at the beginning of the backward movement section ( Figure 4 (b));
  • Fig. 5 (a) and Fig. 5 (b) show the band dicing apparatus having the first pair of rollers during the backward-moving portion thereof, and in Figure 5 (b), the first pair of rollers has returned to the home position;
  • Figure 6 shows a schematic representation of an apparatus for cutting at least a part of a band or for introducing at least one recess in a band, according to another embodiment of the present invention.
  • Figure 1 shows a schematic representation of a device 2 for severing a strip 8 in a plurality of individual pieces of tape, with a feeder 4, with a first conveyor belt 6, with a first pair of rollers 10, with a laser beam cutting device 12, with a second pair of rollers 14th , with a second conveyor belt 16 and with a robot 18 and with a continuous in the direction of passage 20 CFK tape.
  • a feeder 4 with a first conveyor belt 6, with a first pair of rollers 10, with a laser beam cutting device 12, with a second pair of rollers 14th , with a second conveyor belt 16 and with a robot 18 and with a continuous in the direction of passage 20 CFK tape.
  • the device 2 for severing a band 8 into a plurality of individual band pieces is also abbreviated to band-separating device 2.
  • the feeding device 4 is designed as a roll on which the CFRP belt 8 is wound by means of an interposed carrier film.
  • a control device which drives the feed device 4 such that the CFRP belt 8 is fed via the subsequently arranged conveyor belt 6 to the first roller pair 10 with separation of the carrier film at a constant transport speed.
  • the first pair of rollers 10 is mounted on a spindle axis, not shown, which in the direction of passage of the belt towards the second pair of rollers 14 from an initial to an end position and from the pair of rollers 14 away from the end position to the starting position towards the feeder can be moved and is controlled accordingly by the control device.
  • the laser beam cutting device 12 is arranged above the two roller pairs 10 and 14.
  • the impact area of the laser beam on the CFRP strip 8 is located between the two pairs of rollers 10 and 14.
  • the laser beam cutting device 12 is formed and is controlled by the control device that the laser beam over the entire width of the CFRP band 8 and a Piece can be moved in the direction of passage and against the direction of passage.
  • the laser beam cutting device 12 can sever the CFRP belt 8 with an individually adjustable separation edge profile.
  • the feeder 4 for the first pair of rollers 10 and for the two rollers of the first pair of rollers 10 may be provided a common belt drive, the movement of the first pair of rollers 10 between the starting and the end position, the rotational speed of the rollers of the first pair of rollers 10 and the unwinding speed of the feed device 4 and thus the transport speed of the CFRP belt 8 synchronized with each other.
  • the second pair of rollers 14 is arranged stationary. Its rollers rotate in opposite directions and at a peripheral speed which corresponds to the transport speed of the CFRP belt 8.
  • rollers of the first pair of rollers 10 and also the rollers of the second pair of rollers 14 are driven in opposite directions, as shown by the arrows.
  • FIGS. 2 (a) and 2 (b) respectively show the belt dicing device 2 during a forward movement portion of the first roller pair 10 and during the cutting of the CFK belt 8 by the laser beam cutting device 12.
  • the CFRP belt 8 is conveyed at a constant transport speed, which may also be referred to as throughput speed, from the feed device 4 via the first conveyor belt 6 fed to the first pair of rollers 10.
  • Fig. 2 (a) the process for breaking the CFRP tape 8 into a plurality of individual pieces of tape starts.
  • the first pair of rollers 10 is in its initial position, in which it is positioned furthest to the feeder 4 and the first conveyor belt 6 out.
  • the laser beam cutting device 12 is controlled so that the laser beam generated by it impinges on the CFRP belt 8 and is moved over its entire width in order to cut through the CFRP belt 8 in the transverse direction. Furthermore, the laser beam is also moved so that it follows a part of the transport direction of the CFRP strip 8.
  • FIGS. 2 (a), 3 (a) and 3 (b) the direction of the laser beam produced by the laser beam cutter 12 and directed towards the CFRP belt 8 .
  • the laser beam extends obliquely from the laser beam cutter 12 to the lower left, in FIG. 2 (b) it extends downward and slightly to the right, and in FIG. 3 (a), it extends obliquely downward to the right ,
  • the laser beam impact point seen in the transport direction of the CFRP strip 8, moves with it in the transport direction from left to right.
  • the laser beam strikes the CFRP belt 8 at a position between the two roller pairs 10 and 14 and in particular at a position in the transport direction of the CFRP belt 8 immediately before the first roller pair 10, that is to say in FIGS. 2 (a), 3 (a) and 3 (b) to the right of the first pair of rollers 10.
  • the transection 13 is shown clearly recognizable in the figures.
  • FIG. 3 (a) and FIG. 3 (b) show the belt dicing device 2 during the forward movement section of the first roller pair 10 and after the CFRP belt 8 has been severed by the laser beam cutting device 12.
  • Fig. 3 (a) the first pair of rollers 10 is shown during its forward movement portion between the home position and the end position at a position immediately before the end position, the laser beam of the laser beam cutter 12 has just cut the CFRP belt 8 completely.
  • Fig. 3 (b) the first pair of rollers 10 is again shown in a position during its forward movement section immediately before the end position. At this time, the laser beam of the laser beam cutter 12 has been stopped.
  • Figure 4 shows the belt dicing device 2 with the first pair of rollers 10 in the end position at the end of the forward movement section ( Figure 4 (a)) and at the beginning of the rearward movement section ( Figure 4 (b)).
  • rollers of the first pair of rollers 10 are driven so that they have a peripheral speed, the transport speed of the CFRP belt 8 plus the speed of the backward movement of the first pair of rollers 10 from the end position ( Figure 4 (b)) to the starting position (FIG 2 (a) and 5 (b)).
  • the movement of the rollers of the first roller pair 10 is symbolized by arrows in FIGS. 4 (b), 5 (a) and 5 (b).
  • Figure 5 (a) and Figure 5 (b) show the belt dicing device 2 with the first pair of rollers 10 during its reverse motion section, in Figure 5 (b) the first roller pair 10 has again reached the home position.
  • Fig. 5 (a) the first pair of rollers 10 are shown in a position during the backward moving portion in which the first pair of rollers 10 are disposed at a middle position between the end position and the home position.
  • the backward moving portion is stopped, and the peripheral speed of the rollers of the first roller pair 10 is reduced to correspond to the transporting speed of the CFK belt 8.
  • the first pair of rollers 10 can now remain in the starting position 10 for a transitional period, before the forward movement section with simultaneous cutting of the CFRP strip 8 by the laser beam cutting device 12 again connects, and the method for cutting the CFRP strip 8 according to Figures 2, 3, 4 and 5 is repeated.
  • the cutting of the CFK tape 8 takes place underlayment and in free space between the two pairs of rollers 10, 14 by the laser beam of the laser beam cutting device 12, whereby adhesion of the CFK tape 8 is avoided on a substrate.
  • the CFRP belt 8 is always held by the two roller pairs 10 and 14 always slightly on train.
  • the free end of the CFRP strip 8, which is arranged at the front after the cut-through 13, is always guided only very briefly after the separation process and is already caught by the second pair of rolls 14 after a short distance and after a short time.
  • FIG. 6 shows a schematic representation of a device 22 for cutting out at least one part 26 from a band 8 or for introducing at least one recess into a band 8, according to a further exemplary embodiment of the present invention.
  • the device 22 for cutting out at least a part 26 from a band 8 or for introducing at least one recess into a band 8 is also abbreviated to a band-cut-out or band-recess-insertion device 22.
  • the band-cut or band-cut insertion device 22 shown in FIG. 6 corresponds to the band-dicing device 2 shown and described in FIGS. 1 to 5, wherein the feed device is not shown (but provided). hand) is, in contrast to this instead of a robot 18 here a retractor 24 is provided after the second pair of rollers 14, and wherein the laser beam of the laser beam cutting device 12 here does not transection of the CFRP 8 into individual pieces of tape, but rather at least one Part 26 cuts out of the band 8 or at least one recess, for example, an individual side edge profile and / or a hole pattern in the CFK CFK band 8 introduces the CFRP band 8 but not broken into separate pieces of tape.
  • the CFRP belt 8 provided with the recesses is rolled onto the retractor 24.
  • the entire roll of the retractor 24 can be removed and sold or further processed.
  • the roll may be disposed of and the cut-out portions 26 may be removed and sold or further processed

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Abstract

La présente invention concerne un dispositif pour découper une bande en une pluralité de morceaux de bande individuels, comprenant un appareil d'alimentation (4) pour une bande (8), en particulier à une bande de plastique renforcé par des fibres de carbone (8), qui peut être entraîné de façon à alimenter la bande (8) avec une vitesse de transport en particulier constante ; une première paire de cylindres (10) comportant des cylindres pouvant être entraînés dans des sens opposés, permettant de guider la bande (8) ; une seconde paire de cylindres (14) en particulier fixée à demeure, en particulier comportant des cylindres pouvant être entraînés dans des sens opposés, agencée derrière la première paire de cylindres (10) dans le sens de passage de la bande (8) ; un appareil de découpe par faisceau laser (12), agencé et conçu pour sectionner la bande (8) entre la première et la seconde paire de cylindres (10, 14) ; et un appareil de commande qui est conçu : pour déplacer la première paire de cylindres (10) d'une position de départ à une position finale vers la seconde paire de cylindres (14) dans une phase de mouvement vers l'avant, par un mouvement rotatif ralenti des cylindres ou l'arrêt du mouvement des cylindres, et, au moins pendant une partie de la phase de mouvement vers l'avant, pour que l'appareil de découpe par faisceau laser (12) sectionne la bande (8) entre les première et seconde paires de cylindres (10, 14) ; et pour redéplacer la première paire de cylindres (10) de la position finale à la position de départ dans une phase de mouvement vers l'arrière par un mouvement rotatif plus rapide des cylindres.
PCT/EP2018/054264 2017-03-10 2018-02-21 Dispositif et procédé permettant la découpe d'une bande en une pluralité de morceaux de bande individuels Ceased WO2018162237A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017105154.6A DE102017105154B4 (de) 2017-03-10 2017-03-10 Vorrichtung und Verfahren zum Zertrennen eines Bands in eine Vielzahl von einzelnen Bandstücken
DE102017105154.6 2017-03-10

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WO2018162237A1 true WO2018162237A1 (fr) 2018-09-13

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WO (1) WO2018162237A1 (fr)

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CN111515560A (zh) * 2020-05-21 2020-08-11 温州大学 一种钢丝激光切割设备的进料机构
CN111761207A (zh) * 2020-06-28 2020-10-13 济南金威刻科技发展有限公司 全自动带条激光切割雕刻机
CN114406494A (zh) * 2022-01-28 2022-04-29 大族激光科技产业集团股份有限公司 激光切割机床
CN115303541A (zh) * 2022-08-09 2022-11-08 衡阳舜达精工科技有限公司 一种用于汽车零部件覆膜的设备

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US20100162864A1 (en) * 2008-08-19 2010-07-01 Junpei Kozasa Optical film transport method, and apparatus using the same
EP2289660A1 (fr) * 2009-08-27 2011-03-02 Roland Weber Vektor Pharma Dispositif et procédé de découpe pour des matériels TDS ou ODF avec deux paires de rouleaux d'entraînement

Cited By (6)

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Publication number Priority date Publication date Assignee Title
CN111515560A (zh) * 2020-05-21 2020-08-11 温州大学 一种钢丝激光切割设备的进料机构
CN111761207A (zh) * 2020-06-28 2020-10-13 济南金威刻科技发展有限公司 全自动带条激光切割雕刻机
CN114406494A (zh) * 2022-01-28 2022-04-29 大族激光科技产业集团股份有限公司 激光切割机床
CN114406494B (zh) * 2022-01-28 2024-02-23 大族激光科技产业集团股份有限公司 激光切割机床
CN115303541A (zh) * 2022-08-09 2022-11-08 衡阳舜达精工科技有限公司 一种用于汽车零部件覆膜的设备
CN115303541B (zh) * 2022-08-09 2024-04-16 衡阳舜达精工科技有限公司 一种用于汽车零部件覆膜的设备

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