WO2018073352A1 - Dispositif de pose de bandes et procédé de pose de bandes pour la pose souple et rapide de bandes présentant une durée de cycle courte - Google Patents

Dispositif de pose de bandes et procédé de pose de bandes pour la pose souple et rapide de bandes présentant une durée de cycle courte Download PDF

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Publication number
WO2018073352A1
WO2018073352A1 PCT/EP2017/076730 EP2017076730W WO2018073352A1 WO 2018073352 A1 WO2018073352 A1 WO 2018073352A1 EP 2017076730 W EP2017076730 W EP 2017076730W WO 2018073352 A1 WO2018073352 A1 WO 2018073352A1
Authority
WO
WIPO (PCT)
Prior art keywords
tape
laying
vacuum
suction chamber
chamber
Prior art date
Application number
PCT/EP2017/076730
Other languages
German (de)
English (en)
Inventor
Matthias Graf
Original Assignee
Dieffenbacher GmbH Maschinen- und Anlagenbau
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 Dieffenbacher GmbH Maschinen- und Anlagenbau filed Critical Dieffenbacher GmbH Maschinen- und Anlagenbau
Priority to EP17791328.2A priority Critical patent/EP3529060A1/fr
Priority to CN201790001341.8U priority patent/CN210283311U/zh
Priority to KR2020197000032U priority patent/KR20190001536U/ko
Publication of WO2018073352A1 publication Critical patent/WO2018073352A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
    • B29C70/386—Automated tape laying [ATL]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B29C70/545—Perforating, cutting or machining during or after moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0027—Cutting off

Definitions

  • the present invention relates to a tape laying apparatus according to the
  • Lightweight potential while being characterized by its high strength and very high structural rigidity. The latter is an important criterion in automotive engineering, for example.
  • the former usually include P reforming units, press units and possibly injection units as well
  • Post-processing units the latter the corresponding automation for preform handling, tool cleaning, component removal and the like.
  • the automatable production of the preform represents a key technology in the manufacturing process of continuous fiber reinforced fiber composite components
  • Sheets such as fiber fabrics, fiber knits, fiber fabric or fiber mats used.
  • the matrix of fiber-reinforced plastics has the task of embedding the heavy-duty fibers (supporting function) and completely filling their intermediate space (blocking function).
  • binder materials and / or matrix materials can be used materials from the groups of thermoplastics or thermosets and optionally additional elasticizing components, such as elastomers, which in the strength, the maximum elongation, the operating temperature, the processing speed and the Distinguish chemical resistance.
  • Thermosetting molding compounds can be plasticized by the action of temperature, are malleable at this moment and then cure irreversibly under pressure and temperature.
  • the thermoplastics or thermosets and optionally additional elasticizing components, such as elastomers, which in the strength, the maximum elongation, the operating temperature, the processing speed and the Distinguish chemical resistance.
  • Thermosetting molding compounds can be plasticized by the action of temperature, are malleable at this moment and then cure irreversibly under pressure and temperature.
  • the elasticizing components such as elastomers
  • thermosets also called thermosets
  • Thermoplastics consist of the elastomers and thermosets (also called thermosets) after processing, d. H. in the ready-to-use state, of more or less strongly cross-linked macromolecules, which are generally neither fusible nor soluble.
  • a "tape” is preferably to be understood as meaning any kind of sheet material, in particular a prepreg material, for example having a width between 30 and 200 mm, which is suitable for a Storing is suitable by means of a tape-laying device.
  • prepreg material is meant herein in particular fiber yarns (rovings), fiber scrims and / or fiber webs, which are wetted with a binder and / or impregnated with a matrix, for example a thermoset matrix or thermoplastic matrix, partially or completely impregnated, in particular preimpregnated.
  • the “fibers” are, in particular, carbon fibers, but the term “fibers” likewise includes glass fibers or other fibers, in particular natural or man-made fibers.
  • the tape may be disposed on a substrate, in particular a backing sheet or backing paper, which releases from the substrate during deposition of the tape build-up tape, the substrate being removed, e.g., wound, by any suitable means of the tape laying apparatus. However, it is also preferable to use tapes which no longer require carrier materials.
  • An exemplary tape laying apparatus is known from document WO 2014/083196 A1, which describes a tape laying apparatus configured with two laying head units.
  • the laying head units are arranged so that they are accessible to a single laying table.
  • the laying head units are independent of each other and each configured with its own material feed unit, cutting device, gripping means with associated linear drive, guideways and tape stitching unit.
  • a band section can be drawn to length, positioned in guideways and stapled in place with the first laying head unit on the part to be produced, while simultaneously pulling the next band section lengthwise and positioning it on the second laying head unit in the guideways.
  • the laying table conveys the part to be produced to the second laying head unit, during which the next band portion is prepared and positioned to be adhered to the part to be produced.
  • the US 8,048,253 B2 also describes a tape laying device with a
  • Laying head wherein a tape tape material is fed to a cutting device which separates a tape strip or a tape, which is then placed with the laying head on the working surface of a laying table.
  • the tape tape material and the separated tape are guided in the laying head in each case in guide rails, which are arranged on both sides of the tape or the tape, wherein the edges of the tape or the tape in grooves in the guide rails
  • the fiber contour is fixed to the transport plate and lifted from the cutting table.
  • the suction devices work on the Bernoulli principle, whereby by the
  • suction pad is attached to a manipulator such as an industrial robot.
  • a comparable principle of a suction gripper which serves for receiving large-area fiber fabrics and is attached to an industrial robot is also known from the document DE 10 2013 208 778 A1, which describes a suction gripper in the form of a rod system arrangement of angularly crossed and parallelogram-like slidable rods.
  • Grid structure are suction pads, which use a Coanda effect, arranged variably positionable.
  • the document DE 10 2014 1 14 866 A1 which does not deal with the laying of tapes, describes a device for producing a multi-layer felt, wherein felt chips are blown into a mold and pressed into the desired shape.
  • a plurality of vacuum suction ports are provided, which are connected to a vacuum source to provide a vacuum
  • a vacuum suction shut-off device to close at least some desired vacuum suction ports.
  • the vacuum suction shut-off device is mounted above the upper mold and has a shut-off plate. By means of a rack and pinion drive, the shutdown plate can be moved to selectively move the shutdown plate across the plurality of vacuum suction ports. In order to close all vacuum suction entrances, while the shutdown plate must be moved over a large distance, so that even here a quick shutdown is not possible. In addition, the shutdown plate or its movement only causes the connection between the vacuum suction ports and the vacuum source to be interrupted. The existing in the vacuum suction entrances vacuum can therefore be lifted only by the fact that through the sucked Fiizs fonde air flows into the vacuum suction ports until the vacuum is released. For this reason too, a rapid shutdown and cancellation of the suction effect generated by the vacuum with this device is not possible.
  • the suction device is provided with passage openings which form part of a suction path, via which the suction chamber communicates with the suction openings of the suction belt.
  • an adjusting device in the form of a perforated slide is provided in order to set the cross section of the suction path.
  • the perforated slide several In throttle rows articulated throttle openings of different cross sections.
  • the adjusting device should be designed so that always a sufficient suction is ensured and no temporary total shutdown of the suction occurs. A quick on and off the suction is therefore not provided in this document.
  • a tape laying apparatus comprising: a material feeding unit for feeding a tape tape material, a
  • Cutting device for separating a tape from the tape tape, a laying device for receiving and placing the separated tape on a laying table, and a control and / or regulating device for controlling and / or regulating the operation of the tape laying device, wherein the laying device is a flat transport element and a vacuum device, wherein the vacuum device can be activated and deactivated under control and / or regulation of the control and / or regulating device, and wherein the vacuum device is connected to the flat transport element, so that the tape by means of
  • Vacuum device generated negative pressure on a lower side of the flat Transport element can be kept.
  • the flat transport element may preferably be designed as at least one circulating around deflection rollers, endless conveyor belt, preferably as two or more parallel, circulating around pulleys, endless conveyor belts.
  • the flat transport element may have a plate-shaped bearing surface, which is movable in and against the transport direction of the tapes.
  • Tapes moves, or which moves in the case of the execution of the flat transport element as a plate-shaped support surface in the transport direction of the tape tape or Tapes to record and move the tape tape or tapes, it is possible with to lay tapes of varying width and / or length. In particular, it is also possible in this way, by means of the tape laying device to lay short and shortest tapes, in particular also angularly cut tapes. Since this in addition to a possible conversion of the material supply no significant reconfiguration of Tapelegevoriques is required, the Tapelegevoriques can be used versatile and efficient.
  • the vacuum device also provided for a secure holding the tapes on the transport element provides.
  • the vacuum device comprises a vacuum chamber, a plurality of openings, a suction chamber and between the vacuum chamber and the
  • Closing element has a plurality of passage openings, wherein in a first position of the closure element, the passage openings the openings of the At least partially cover the vacuum chamber, so that a fluid connection between the suction chamber and the vacuum chamber, and wherein in a second position of the closure element, the passage openings have no overlap with the openings of the vacuum chamber, so that the fluid communication between the suction chamber and the vacuum chamber is interrupted ,
  • the vacuum chamber is in communication with a vacuum pump, which is preferably operated continuously to keep the vacuum chamber under a vacuum or under negative pressure.
  • the negative pressure in the vacuum chamber can be controlled and / or regulated by the control and / or regulating device to a desired value of the negative pressure.
  • the vacuum chamber can thus be considered as a large reservoir of vacuum or vacuum, so that when the closure element is actuated to the
  • Vacuum chamber much smaller suction chamber can be emptied very quickly, so that also sets in the suction chamber in a very short time required for holding the tape vacuum.
  • the time required to activate the vacuum device can be kept very small, which in turn allows a shortening of the cycle time and, consequently, an increase in the laying rate of the tape laying device.
  • the vacuum chamber and the suction chamber are preferably each sized so that a ratio of the volume of the vacuum chamber to the volume of the suction chamber is at least 5: 1, preferably 10: 1 or more and more preferably 15: 1 or more.
  • the closure element may be formed as a slide bar, and preferably the vacuum device further comprises a guide element for the slide bar, which is adapted to form a receptacle and guide for the slide bar, and wherein the suction chamber is formed in the guide member and partially bounded by this ,
  • planar Transport element bounded one side of the suction chamber, wherein in the planar transport element, a plurality of passage openings are formed, can be sucked through the air into the suction chamber.
  • Spacing chamber serving suction chamber can therefore have a very small volume, especially in comparison to the vacuum chamber, which also helps to be able to build up and reduce the negative pressure very quickly in order to activate or deactivate the vacuum device. With this measure, therefore, the required cycle time can be further shortened.
  • an actuator device For adjusting the closure element, an actuator device may be provided, wherein the actuator device is controlled by the control and / or regulating device so that to activate the vacuum device to adjust the closure element in the first position, and for deactivating the vacuum device, the closure element in the second position to adjust.
  • the actuator device can be used in particular as an electromotive, preferably servo-motor
  • Linear drive be executed, which allows a fast and precise movement and concomitant adjustment of the closure element.
  • Suction chamber permanently with an environment and / or with a device for injecting a gas, preferably compressed air, is connected.
  • the channels may be formed in particular in the guide element.
  • the channels can Allow air to flow in from the environment so that the vacuum prevailing in the suction chamber is rapidly released and the held tape is released. This very rapid deactivation of the vacuum device contributes also significantly shortening the cycle time.
  • the channels can be very small, it is not necessary to close the channels during the active phase of the vacuum device; Rather, it is sufficient that the comparatively small amount of air flowing through the channels during the active phase in the suction chamber, via the vacuum chamber and the
  • Vacuum pump emptying vacuum chamber without the vacuum effect caused by the holding force is significantly impaired. This also contributes to a simple, effective and cost-effective design.
  • the means for introducing a gas into the suction chamber can be activated and thus produce a slight overpressure for detaching the tape.
  • the channels are thus not permanently open, whereby at a fluid connection between the vacuum chamber and the suction chamber no gas can flow into the suction chamber from the environment.
  • the closure mechanism for the channels may be coupled to the closure member, so that when closing the openings to the vacuum chamber simultaneously the channels for reducing the negative pressure in the suction chamber be opened.
  • the channels can be dimensioned so that the plurality of channels in total have a cross section which is 1/5 or less, preferably 1/10 or less and particularly preferably 1/20 or less of a sum of
  • a gas preferably compressed air
  • a gas can be injected into the suction chamber, so that in particular briefly generates a slight overpressure in the suction chamber what is the detachment of tapes from the flat
  • At least one feeding device is arranged between the cutting device and the laying device, which has a flat transport element on which tapes separated from the cutting device can be received in contact with a surface of the flat transport element.
  • the laying device further comprises at least one stapling device, which is set up to attach the tape placed by the laying device to a previously stored on the laying table stacking. It can be provided in particular to set up the control and / or regulating device so that the activation of the stapler for attaching the tapes and the deactivation of the
  • Vacuum device can be controlled simultaneously.
  • the control and / or regulating device is set up to activate the activation of the vacuum device immediately after lifting the laying device from the laying table.
  • the meaning can be assigned that the vacuum device is then turned on when there is no contact between the laying unit and the tape to be deposited. The discarded tape will remain on the lay table or stick to an already laid-down tape structure, as this has been previously fixed there with the stapler unit.
  • a tape laying method comprising feeding a tape tape by means of a material supply unit; Cutting off a tape from the tape tape material by means of a cutter; and picking up and placing the separated tape on a laying table by means of a laying device, wherein the laying device comprises a flat transport element and a vacuum device connected to the flat transport element, wherein the vacuum device is activated to receive the tape, so that the tape by means of negative pressure generated by the vacuum device is held on a lower side of the flat transport element, and wherein after placing the tape, the vacuum device is deactivated.
  • the flat transport element is designed as at least one circulating endless rollers, endless conveyor belt.
  • the vacuum device has a vacuum chamber, a plurality of openings, a suction chamber and an adjustable closure element arranged between the vacuum chamber and the suction chamber, the closure element having a multiplicity of passage openings, wherein the closure element is preferably designed as a slide bar is, wherein for activating the vacuum device, the closure element is adjusted to a first position in which the passage openings of the closure element the
  • the method further comprises, according to
  • a gas preferably compressed air
  • a gas is blown into the suction chamber via the channels and / or nozzles.
  • the tape laying method can be used using one herein
  • FIG. 1 shows a tape laying device according to a preferred embodiment in a schematic cross-sectional view from the side.
  • FIG. 2 shows the tape laying device of FIG. 1 in a schematic plan view
  • Fig. 3 is a schematic view in cross section of a vacuum device
  • FIG. 4A, 4B are schematic partial sectional views in longitudinal section of the vacuum device shown in FIG. 3, FIG. 4A showing the vacuum device in an active state and FIG. 4B the vacuum device in a deactivated state.
  • FIG. 1 shows a tape laying device 1 according to one embodiment in a schematic cross-sectional view.
  • a tape tape material 2 provided, for example, wound on a spool 12 is unwound from the spool 12 by means of a material supply unit 10 and disposed downstream of the material supply unit 10
  • the material supply unit 10 may comprise a pair of drive rollers 1 1, which is a roller drive, also as
  • the drive rollers 1 1 are driven by one or more motors (not shown) under the control of a control device (not shown), so that the tape tape material 2 with a desired
  • Cutting means which is designed for example as a cutting blade 25, cut to separate from the tape tape 2 individual tapes 5 each have a desired length.
  • the cutting blade 25 is angularly adjustable so that not only cuts can be made transversely to the tape direction of the tape tape material 2, but by means of a corresponding adjustment of the cutting blade 25 by an angle of, for example ⁇ 45 ° relative to the transverse direction of the tape tape material 2 also Tapes 5 can be cut, which are cut to a desired angle.
  • the tapes 5 After the tapes 5 have been separated from the tape tape material 2 and separated in the cutting device 20, the tapes 5 are transferred to a feed device 30 which feeds the tapes 5 to a laying device 40 and transfers them thereto.
  • the laying device 40 is arranged above a laying table 50 and can be moved in the vertical direction relative to the laying table 50, so that the laying device 40 can place and deposit at least one individual tape 5 on the laying table 50.
  • a linear guide (not shown) may be provided, by means of which the laying device 40 can be lowered in the vertical direction on the laying table 50 to the tape 5 on a working surface of the laying table 50, or a previously formed on the working surface of the laying table 50 tapestry structure and, if necessary, press briefly and lightly. After placing the tape 5, the laying device 40 is raised again to receive a next tape 5.
  • Embodiment of Fig. 1 may be provided that the feeder 30 is also lowered and raised vertically together with the laying device 40 and. This can be done in particular by the fact that the Feeder 30 and the laying device 40 are combined to form a laying head 7 unit, as explained in more detail below with reference to FIG. 2, and the laying head 7 is moved vertically as a whole to deposit a tape 5.
  • the laying head 7 and the laying head 7 are also lowered and raised vertically together with the laying device 40 and. This can be done in particular by the fact that the Feeder 30 and the laying device 40 are combined to form a laying head 7 unit, as explained in more detail below with reference to FIG. 2, and the laying head 7 is moved vertically as a whole to deposit a tape 5.
  • the laying table 50 is controlled by a
  • Control means (not shown) can be rotated about a vertical axis, and / or in the horizontal direction in the x and / or y direction can be moved to allow a desired relative positioning of the tape 5 relative to the laying table 50.
  • two coils 12, 12a may be provided, of which by means of two material feed units 10, 10a with a total of two pairs of drive rollers 1 1, 1 1 a two strands of a tape tape material 2 deducted and two respective cutting devices 20, 20a are supplied, where separated by means of two cutting blades 25, 25a two respective tapes 5, 5a and fed by two feeders 30, 30a to two laying devices 40, 40a.
  • two laying devices 40, 40a By means of the two laying devices 40, 40a, two tapes 5, 5a can thus be simultaneously placed on the laying table 50 and deposited.
  • the material supply unit 10 a As indicated in FIG. 2, the material supply unit 10 a, the
  • Feed device 30 and the laying device 40 are each combined in a laying head 7 or 7a.
  • tapes 5, 5a which have already been deposited during the deposition of tapes 5, 5a are attached to the underlying stacking layer (s), for example by means of ultrasound devices or other stapling devices provided therefor
  • Plasticizing or at least partially consolidated with the underlying stacking layer (s) to form a laminate. This procedure can be for each additional
  • Tapelage be repeated.
  • Laying devices 40, 40a are provided.
  • the first layer of tapes 5, 5a which is deposited on the laying table 50, is at its surface by means of a
  • Negative pressure device held, which sucks the tapes 5, 5a to the surface of the Legeticians. As shown in FIGS. 1 and 2, the laying device 40, 40 a, the
  • Feeding device 30, 30a and the cutting device 20, 20a preferably with conveyor belts 21, 21 a, 31, 31 a, 41st 41 a executed, which rotate endlessly around respective pulleys 32, 42.
  • the feeding device 30, 30a while the tapes 5, 5a lying, that is, on a top of the feeder 30, 30a transported on the conveyor belt 31, 31 a lying.
  • the individual tapes 5, 5a are transported "suspended" in the laying device 40, 40a
  • the laying device 40, 40a is provided with a vacuum device 45, the structure and mode of operation of which are described in more detail with reference to FIGS. 3, 4A and 4B
  • the vacuum device 45 is connected to the conveyor belt 41 of the laying device 40 in such a way that air can be sucked in through the conveyor belt 41 and thus a negative pressure can be built up, for example by a multiplicity of
  • Passage openings 71 are provided in the conveyor belt 41, through which the air can be sucked.
  • a conveyor belt 41 may be used, such as a fabric material, so that the stitches of the
  • the passage openings 71 represent.
  • the vacuum device 45 is activated. Due to the resulting negative pressure can be a lying on the conveyor belt 31 of the feeder 30, the Lege featured 40 supplied tape 5 sucked and lifted from the conveyor belt 31 so that it is held on the underside of the laying device 40 to the conveyor belt 41 fitting.
  • the tape 5 is positioned in a corresponding laying position on the laying table 50.
  • the laying device 40 is lowered, while still activated vacuum, until the tape 5 is brought into contact with the laying table 50, or with previously deposited on the laying table 50 stacking. In this way it can be ensured that the tape 5 does not lose its desired position and it can be a high precision of
  • the stapling devices are preferably activated and attach the tape 5 to the underlying stacking layer (n ).
  • the vacuum is switched off. This may preferably be done simultaneously with the
  • Feeder 30 positions a next tape 5 to be picked up.
  • cycle time being the time duration of picking up a tape 5 with the laying device 40, depositing and placing of the tape 5 on the laying table 50, lifting the laying device 40 from the laying table 50 and moving the laying device 40 back to the starting position for picking up a next tape 5.
  • cycle times of less than 1 second, and in many applications, cycle times of 0.3 to 0.8 seconds can be achieved with the present invention.
  • FIG. 3 shows an embodiment of a vacuum device 45 in cross section along the line A - A in Fig. 1.
  • the vacuum device 45 to a vacuum chamber 62, which is bounded and defined by a wall 61.
  • the vacuum chamber 62 is connected to a vacuum pump (not shown), which preferably continuously sucks air from the vacuum chamber 62, so that there is a permanent vacuum in the vacuum chamber 62.
  • vacuum is not used in the sense of an ideal, complete vacuum, which would correspond to a complete absence of air or other gases.
  • the term of the vacuum is used herein in the sense of a negative pressure, which in particular is sufficiently pronounced in order to be able to safely comply with a desired and / or required retention force.
  • the difference between the generated negative pressure relative to the environment can be in the range of a few 10 mbar, preferably between 20 and 100 mbar, particularly preferably between 30 and 60 mbar.
  • in the wall 61 of the vacuum chamber 62 at least one opening 63 is formed, via which the vacuum chamber 62 is in communication with another chamber, which for better distinctness than
  • Suction chamber 67 should be called.
  • the suction chamber 67 is in one
  • Guiding element 65 is formed as a closure element. There is further provided a slide bar 64, which is arranged in the region of the at least one opening 63 of the vacuum chamber 62 between the wall 61 and the guide element 66.
  • the slider bar 64 is in a longitudinal direction which extends along the Laying device 40 or vacuum device 45 in the direction of the transport direction 60 results, the vacuum device 45 and in the longitudinal direction of the laying device 40 adjustable, as shown in Fig. 4A and 4B in more detail.
  • Figs. 4A and 4B respectively schematically show the vacuum device 45 in a fragmentary longitudinal section, wherein Fig. 4A shows the vacuum device 45 in a state where the vacuum device 45 is activated, and Fig. 4B shows the vacuum device 45 in a state in which the vacuum device 45 is deactivated.
  • the slide bar 64 the stiffening of which is indicated in the longitudinal direction by the double arrow, is positioned so that passage openings 65 provided in the slide bar 64 are each connected to the openings 63 of FIG. 4A
  • Vacuum chamber 62 are aligned and cover them. In this position, the suction chamber 67 is thus in fluid communication with the vacuum chamber 62, so that due to the pressure prevailing in the vacuum chamber 62 vacuum or
  • Negative pressure also sets a corresponding negative pressure in the suction chamber 67.
  • the conveyor belt 41 extends into contact with the guide member 66 and limited on this side, the suction chamber 67.
  • a plurality of passage openings 71 is provided in the conveyor belt 41. Due to the in the suction chamber 67th
  • Conveyor 41 are sucked and held on this, at the same time the passage openings 71 of the conveyor belt 41 are covered by the tapes 5 and thus substantially closed.
  • the slide bar 64 and the guide element 66 with the suction chamber 67 formed therein and the preferably provided channels 68 in this way represents a shut-off element which is arranged in the immediate vicinity of the conveyor belt 41.
  • a gas preferably compressed air
  • a gas preferably compressed air
  • Conveyor belt 21, 21 a a lateral guide plate (not shown) is arranged, which serves as a stop and guide for the tape tape material 2, or for thereof
  • the cutting means 20, 20a, the feeders 30, 30a and the laying means 40, 40a are each provided with an endless conveyor belt 21, 21a, 31, 31a, 41a, circulating around deflection rollers 22, 32, 42, this is not limiting. Rather, each of these devices can also be provided with a plurality of conveyor belts 21, 21 a, 31, 31 a, 41, 41 a, which run side by side and are guided around common or separate deflection rollers 22, 32, 42. This can in particular be advantageously provided for the laying devices 40 and 40a, wherein for each laying device 40, 40a two or more endlessly circulating, parallel conveyor belts 41, 41a can be provided, which are arranged at a distance from one another.
  • a plurality of ultrasonic welding heads can be arranged in the respective laying device 40a, 40b, so that with a respective laying device 40, 40a both the deposition of one or more tapes 5, 5a and the pointwise connection with the underneath lying tape layer can be made.
  • the conveyor belts 21, 21 a, 31, 31 a, 41, 41 a by other types of flat transport elements.
  • a flat, in particular plate-shaped transport element can be provided, with a plate-shaped support surface, which in and against the transport direction 60 of the tape cassette.
  • Band material 2 and the tapes 5, 5a is movable.
  • the flat transport element as a metal plate, a plastic plate, coated with a plastic or other material or coated metal plate or
  • Be performed plastic plate which is supported and guided by means of a linear guide, and by means of a drive parallel to the transport direction 60 of the tape tape material 2 and the tapes 5, 5a back and forth can be moved.
  • the tape tape material 2 and / or the separated tapes 5, 5a come here on the bearing surface formed by the surface of the plate-shaped transport element for storage.
  • the plate-shaped transport element may in particular also be provided with the vacuum device. Ultrasonic welding devices can again be provided for the laying devices 40, 40a, which in turn can be introduced through corresponding openings in the plate-shaped transport element.
  • the cutting device 20, 20a and / or the feed devices 30, 30a to each provide a vacuum device corresponding to the vacuum device 45 shown in FIGS. 3 and 4A and 4B. This is illustrated by way of example in FIG. 1, which includes the feed device 30 with a
  • Cutting device 20, 20a and / or the feeders 30, 30a holding the tape tape material 2 and the tapes 5, 5a separated therefrom is provided, can be achieved that due to the increased precision and safety, in particular the position of the tape Bandmaterials 2 and the tapes 5, 5a, a more precise and high-quality production of components is assured. Further, it is also possible, the first cutter 20 and the first
  • Feeder 30 integrally form as a unit, and / or integrally form the second cutter 20a and the second feeder 30a as one unit. Conversely, between the first cutting device 20 and the first laying unit 40 and / or between the second cutting device 20a and the second laying unit 40a, a plurality of feed devices 30, 30a can be provided in each case.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Robotics (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

L'invention concerne un dispositif (1) de pose de bandes, présentant une unité (10, 10a) d'acheminement de matériau pour acheminer un matériau de bande (2) en ruban, un dispositif (20, 20a) de découpe pour séparer une bande (5, 5a) du matériau de bande (2) en ruban, un dispositif de pose (40, 40a) pour recevoir et placer la bande (5, 5a) séparée sur une table de pose (50) et un dispositif de commande et/ou de régulation pour la commande et/ou la régulation du fonctionnement du dispositif de pose de bande. Le dispositif de pose (40, 40a) se caractérise en ce qu'il présente un élément de transport plat et un dispositif de vide (45), qui peut être activé et désactivé par commande et/ou régulation du dispositif de commande et/ou de régulation, le dispositif de vide (45) étant relié à l'élément de transport plat de manière telle que la bande (5, 5a) peut être maintenue au moyen de la dépression produite par le dispositif de vide (45) sur une face inférieure de l'élément de transport plat L'invention concerne par ailleurs encore un procédé de pose de bandes.
PCT/EP2017/076730 2016-10-19 2017-10-19 Dispositif de pose de bandes et procédé de pose de bandes pour la pose souple et rapide de bandes présentant une durée de cycle courte WO2018073352A1 (fr)

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EP17791328.2A EP3529060A1 (fr) 2016-10-19 2017-10-19 Dispositif de pose de bandes et procédé de pose de bandes pour la pose souple et rapide de bandes présentant une durée de cycle courte
CN201790001341.8U CN210283311U (zh) 2016-10-19 2017-10-19 带敷设设备
KR2020197000032U KR20190001536U (ko) 2016-10-19 2017-10-19 짧은 주기 시간으로 테이프들을 유연하고 신속하게 적층하기 위한 테이프 적층 장치 및 테이프 적층 방법

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DE102016119911.7 2016-10-19
DE102016119911.7A DE102016119911A1 (de) 2016-10-19 2016-10-19 Tapelegevorrichtung und Tapelegeverfahren zum flexiblen und schnellen Legen von Tapes mit kurzer Zykluszeit

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KR (1) KR20190001536U (fr)
CN (1) CN210283311U (fr)
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WO (1) WO2018073352A1 (fr)

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DE102019212832A1 (de) * 2019-08-27 2021-03-04 Zf Friedrichshafen Ag Vorrichtung und Verfahren

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WO2008110614A1 (fr) * 2007-03-13 2008-09-18 Eads Deutschland Gmbh Procédé et dispositif de fabrication d'une préforme pour une structure en matériau renforcé par des fibres adaptée à des flux de forces
US8048253B2 (en) 2007-09-26 2011-11-01 Fiberforge Corporation System and method for the rapid, automated creation of advanced composite tailored blanks
DE102008018726A1 (de) * 2008-04-14 2009-10-15 Josef Gail Vorrichtung und Verfahren zur Verarbeitung eines vorimprägnierten Faserverbundwerkstoffs
DE202010014946U1 (de) 2010-11-04 2011-01-05 Manroland Ag Saugbändertisch
WO2012156524A1 (fr) 2011-05-19 2012-11-22 Dieffenbacher Gmbh Maschinen Und- Anlagenbau Procédé et dispositif pour le transport d'un contour de fibres, découpé d'un tissu fibreux plat, au cours de la production de pièces moulées en matière plastique renforcée par des fibres
WO2014083196A1 (fr) 2012-11-30 2014-06-05 Dieffenbacher GmbH Maschinen- und Anlagenbau Procédé et machine de pose destinés à la pose et à la fixation de sections de bande sur une pièce à fabriquer
WO2014140146A1 (fr) * 2013-03-12 2014-09-18 Dieffenbacher GmbH Maschinen- und Anlagenbau Procédé et systèmes servant à fabriquer des composants composites innovants
DE102013208778A1 (de) 2013-05-13 2014-11-13 Deutsches Zentrum für Luft- und Raumfahrt e.V. Einrichtung zum Aufnehmen, Handhaben und/oder Ablegen von textilen Strukturen
DE102014114866A1 (de) 2014-01-21 2015-07-23 Hyundai Motor Company Vorrichtung und Verfahren zur Herstellung eines Mehrlagenfilzes

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CN210283311U (zh) 2020-04-10
EP3529060A1 (fr) 2019-08-28
KR20190001536U (ko) 2019-06-21

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