WO2019057241A1 - Procédé et dispositif de manipulation et de dépôt continus de textiles techniques, notamment sous la forme d'un paquet de couches textiles dans un outil de formage - Google Patents

Procédé et dispositif de manipulation et de dépôt continus de textiles techniques, notamment sous la forme d'un paquet de couches textiles dans un outil de formage Download PDF

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Publication number
WO2019057241A1
WO2019057241A1 PCT/DE2018/100777 DE2018100777W WO2019057241A1 WO 2019057241 A1 WO2019057241 A1 WO 2019057241A1 DE 2018100777 W DE2018100777 W DE 2018100777W WO 2019057241 A1 WO2019057241 A1 WO 2019057241A1
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WO
WIPO (PCT)
Prior art keywords
textile
conveyor belt
endless conveyor
circumferential surface
package
Prior art date
Application number
PCT/DE2018/100777
Other languages
German (de)
English (en)
Inventor
Michael Brink
Jan-Hendrik Ohlendorf
Marvin Richrath
Original Assignee
Universität Bremen
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 Universität Bremen filed Critical Universität Bremen
Publication of WO2019057241A1 publication Critical patent/WO2019057241A1/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
    • 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
    • B29C70/541—Positioning reinforcements in a mould, e.g. using clamping means for the reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/30—Belts or like endless load-carriers
    • B65G15/58—Belts or like endless load-carriers with means for holding or retaining the loads in fixed position, e.g. magnetic
    • 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
    • B29C70/30—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]
    • B29C70/388—Tape placement heads, e.g. component parts, details or accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/06—Advancing webs by friction band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/22—Cross section profile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/24—Longitudinal profile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/25—Driving or guiding arrangements
    • B65H2404/256—Arrangement of endless belt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/26—Particular arrangement of belt, or belts
    • B65H2404/261—Arrangement of belts, or belt(s) / roller(s) facing each other for forming a transport nip
    • B65H2404/2611—Arrangement of belts, or belt(s) / roller(s) facing each other for forming a transport nip forming curved transport path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/26—Particular arrangement of belt, or belts
    • B65H2404/261—Arrangement of belts, or belt(s) / roller(s) facing each other for forming a transport nip
    • B65H2404/2613—Means for changing the transport path, e.g. deforming, lengthening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/26—Particular arrangement of belt, or belts
    • B65H2404/261—Arrangement of belts, or belt(s) / roller(s) facing each other for forming a transport nip
    • B65H2404/2614—Means for engaging or disengaging belts into or out of contact with opposite belts, rollers or balls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/26—Particular arrangement of belt, or belts
    • B65H2404/262—Arrangements of belts facing rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/26—Particular arrangement of belt, or belts
    • B65H2404/269—Particular arrangement of belt, or belts other arrangements
    • B65H2404/2692—Arrangement of belts in pressure contact with a roll of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/26—Particular arrangement of belt, or belts
    • B65H2404/269—Particular arrangement of belt, or belts other arrangements
    • B65H2404/2693—Arrangement of belts on movable frame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/20—Belts
    • B65H2404/28—Other properties of belts
    • B65H2404/281—Other properties of belts porous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/30—Suction means
    • B65H2406/32—Suction belts
    • 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
    • B65H2701/17—Nature of material
    • B65H2701/172—Composite material
    • 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
    • B65H2701/17—Nature of material
    • B65H2701/174—Textile; fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/22—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
    • B65H5/222—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices
    • B65H5/224—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices by suction belts

Definitions

  • the present invention relates to a method for the continuous handling and depositing of technical textiles, in particular in the form of a textile layer package, in a mold and a device for the continuous handling and depositing of technical textiles, in particular in the form of a textile layer package, in a mold.
  • Technical textiles may include, for example, fabrics and scrims.
  • molds are used as a negative or positive image of the component to be manufactured in order to position and fix bendy technical textiles for the lamination or infusion process ,
  • the handling of technical textiles takes a high priority.
  • the individual components of the rotor blade are produced in a vacuum infusion process.
  • the individual textile layers are successively placed in the appropriate mold and draped to then begin the infusion.
  • a particular challenge is the storage of textiles in a multi-dimensionally curved shape.
  • Several technical textiles are successively stored manually in the mold and pressed against the contours of the mold.
  • the textiles are arranged one above the other and must rest on the mold. When placing the textiles, no wrinkles may occur and the layers must not slip between each other or in the mold.
  • Another difficulty is the control of the unwinding and filing speed of the textile.
  • the unwinding speed must be constantly adjusted due to the changing diameter of the roll of material. If now several rolls of material with different diameters are used, the respective unwinding speed would have to be regulated separately for each roll of material. In addition, each roll of material would thus require its own drive and a corresponding measuring system for determining the control engineering reference variable.
  • DE 10 2013 019 146 Ai describes an apparatus and a method for producing a multi-layer fiber fabric for further processing into a fiber-reinforced plastic component.
  • the tissue In order to grasp several layers of a tissue, the tissue is selectively fused by a gripping device.
  • DE 697 17 053 T2 relates to a device which makes it possible to deposit a previously resin-impregnated fabric from a roll into a mold.
  • This device finds use in a draping machine for making composite sheets. It allows a continuous filing of strip material into a mold and the cutting of the required section lengths.
  • DE 10 2009 017 217 Ai describes a device for depositing a strip-shaped semifinished fiber product which, inter alia, comprises a conveyor belt for transporting the fabric, a cutting device and a laying device. About the conveyor belt, the tissue is transported to the place of deposition and fixed by means of a vacuum unit on the conveyor belt. Furthermore, the tissue is pressed onto a substrate via a laying unit.
  • the lay-off head comprises a storage device for rotatably supporting a supply roll of wound composite material in which the material to be deposited is applied to a carrier material, and a conveying and depositing device comprising a guide and drive system for unwinding and conveying composite material from the supply roll and a draping system for draping supplied composite material and for stripping the support material from the draped composite material, the guide and drive system being provided with charging means for electrostatically charging the material with respect to the support material disposed in front of the draping system in the course of processing of the deposition head.
  • the present invention has for its object to simplify the process of automated handling and storing of technical textile webs in a mold.
  • this object is achieved by a method for the continuous handling and depositing of technical textiles, in particular in the form of a textile layer package, into a molding tool, comprising the steps: Stocking at least one technical textile web wound onto a roll of material,
  • Separating the conveyed by means of the endless conveyor belt to be deposited textile web into individual textile web blanks comprises, and
  • a device for the continuous handling and depositing of technical textiles, in particular in the form of a textile layer package, into a molding tool comprising:
  • a storage device for rotatably supporting at least one roll of material from a wound technical textile web
  • an unwinding device having an endless conveyor belt with at least one circumferential surface, wherein the material roll is arranged or can be arranged relative to the endless conveyor belt so that it presses against the at least one circumferential surface of the endless conveyor belt, for unwinding the textile web from the material roll by circulating the endless conveyor belt,
  • a fixing device for temporarily fixing the textile web at least over a partial area on the at least one circumferential surface of the endless conveyor belt
  • preforming means for preforming the conveyed textile web by altering the geometry of the at least one circumferential surface over a portion thereof in the circumferential direction thereof;
  • a confectioning device for manufacturing the conveyed textile web wherein this at least one separation of the conveyed by means of the endless conveyor belt to be deposited textile web into individual textile web blanks comprises, and
  • a traversing device for carrying out a relative movement between the entire endless conveyor belt together with the roll of material and a molding tool
  • endless conveyor belt for depositing and possibly also pressing a textile web or a textile web blank is set up in a mold.
  • the step of stocking comprises: storing at least two technical textile webs wound onto a respective roll of material, the longitudinal axes of the material rolls being substantially parallel to one another
  • the step of pressing comprises: pressing the rolls of material against at least one circumferential surface of an endless conveyor belt
  • the step of unwinding comprises unwinding the textile webs from the material rolls and joining the textile webs to a textile lay package by circulating the endless conveyor belt and fixing the textile webs over at least a portion of the at least one circumferential surface
  • the pre-forming step comprises preforming the conveyed textile lay-up package by altering the geometry of the at least one circumferential surface over a portion thereof in the circumferential direction thereof
  • the assembling step comprises: assembling the conveyed textile fabric package, which comprises at least singulating the textile fabric package to be deposited by the endless conveyor into individual textile fabric package cuts
  • the step of depositing comprises: Depositing a conveyed textile fabric package from the circumferential surface into a mold while performing a relative movement between the entire
  • the at least two rolls of material are arranged one behind the other in the conveying direction of the endless conveyor belt.
  • the textile webs are fixed by suction forces, or electrical forces on the at least one circumferential surface.
  • an electrical attraction can be generated by electrostatic charging.
  • the suction forces may e.g. be generated by negative pressure or differential pressure.
  • the mold is stationary when depositing.
  • the technical textile webs consist of different materials and / or have different structures.
  • the storage device for rotatably supporting at least two rolls of material of wound technical textile webs, wherein the longitudinal axes of the rolls of material run substantially parallel to one another, the rolls of material are arranged or arranged relative to the endless conveyor so that they press against the at least one circumferential surface of the endless conveyor belt and if the unwinding device is designed for unwinding the textile webs from the material rolls and merging the textile webs into a textile lay package by circulating the endless conveyor belt, the fixing device for temporarily fixing the textile webs is designed at least over a partial region on the at least one circumferential surface of the endless conveyor belt, is the preforming device for preforming the conveyed fabric agenvols by changing the geometry of the at least one circumferential surface over a portion thereof in the circumferential direction thereof et, is the making-up device for assembling the conveyed textile fabric package, this at least a separation of the funded by the endless conveyor belt textile fabric parcel to be laid in individual textile fabric parcel sections, designed, and
  • the storage device and the endless conveyor belt are in operation relative to each other translationally stationary.
  • the at least two rolls of material in the conveying direction of the endless conveyor belt can be arranged one behind the other.
  • the endless conveyor belt at least over a portion of a perforation on or is permeable to air and the device has a suction device for sucking textile webs to the circumferential surface of the endless conveyor belt.
  • the device comprises a charging device for electrostatic charging of textile webs or textile material packages or the endless conveyor belt for holding textile webs on the at least one circumferential surface of the endless conveyor belt.
  • the material may be held in abutment with the endless conveyor belt by electrostatic charging.
  • the present invention also relates to the use of a device according to one of claims 7 to 12 and / or a method according to one of claims 1 to 6 in connection with a handling device, for.
  • a handling device for.
  • an industrial robot or a gantry robot As an industrial robot or a gantry robot.
  • the present invention is based on the surprising finding that, by means of a continuous merging of the textiles or technical textile webs to be stacked or textile lay package and adaptive preforming of the layer package or textile lay package by a process step, a plurality of textiles can be easily and automatically placed in a mold can be stored.
  • a mobile conveyor belt serves as a carrier of a textile material package and a forming unit for actively changing the geometry of the conveyor belt.
  • the resulting device may be considered as an effector.
  • the invention comprises a method and a device for continuously merging a plurality of technical textile webs into a textile layer package, for transporting the textile layer package to a defined storage location and for storing the textile layer package with an adaptable to the geometry of the mold or component Depositing head.
  • the invention enables a faster and more efficient production of fiber-reinforced plastic components.
  • the components may be z. B. act so-called nasal edges on rotor blades, which are joined from dry fiberglass sheets by means of vacuum infusion to form a component.
  • the individual technical textile webs are sequentially filed by employees in a concave mold, draped and trimmed.
  • the invention may also be referred to as an apparatus and method for continuous handling / handling (unwinding, conveying, continuous (pre-forming) and (positioning) of technical textiles by means of a variable adjustable geometry of a (transport and) manufacturing system.
  • Fig. L is an isometric view of a device for continuous
  • Fig. 2 is an isometric view of a gantry robot with the apparatus of Fig. 1;
  • Fig. 3 is an isometric view of a device for continuous
  • Fig. 4 is a side view of the device of Fig. L, wherein the
  • FIG. 5 is a front view of the device of Fig. 4;
  • Fig. 6 is a plan view of the device of Fig. 4;
  • Fig. 7 is a side view of the device of Fig. 4 and in particular the
  • Fig. 8 is a front view of the device of Fig. 7;
  • Fig. 9 is a side view of the device of Fig. 4 and in particular the
  • 10a is a side view of the device of Fig. 4 and in particular the
  • Fig. 18-23 various steps of a method for the continuous storage of technical textiles in the form of a Textillagenwovens in a
  • FIGS. 24-30 show various steps of the method of FIGS. 18-23 or another
  • the device 10 in FIG. 1 has a storage device 12 for the rotatable mounting of two rolls of material 14 and 16 (shown in phantom only to distinguish the textile webs) from wound technical textile webs 18 and 20, wherein the longitudinal axes Li and L2 of the material rolls 14 and 16 run parallel to each other, an unwinding and merging device with an endless conveyor belt 22 with three circumferential surfaces 24 (wherein in the other figures, for simplicity, the endless conveyor belt with only one circumferential surface is shown), wherein the material rolls 14 and 16 relative to the endless conveyor belt 22 so arranged are that they press against the circumferential surface (s) 24 of the endless conveyor belt 22, for unwinding the textile webs 18 and 20 of the material rolls 14 and 16 and merging the textile webs to a textile lay package 26 (see for example Fig.
  • a fixing device 28 for fixing the textile webs 18 and 20 at least over a portion of the circumferential surface (s) 24 of the endless conveyor belt 22
  • a preforming or forming device 30 for preforming the conveyed textile lay-up package 26 by altering the geometry of the circumferential surface 24 over a portion thereof in the circumferential direction u thereof
  • an assembler 32 for preforming the conveyed textile lay-up package 26 by altering the geometry of the circumferential surface 24 over a portion thereof in the circumferential direction u thereof
  • an assembler 32 see, e.g., Figs.
  • the device 10 For attachment to a handling device, such as a gantry robot 36 shown by way of example in FIG. 2, the device 10 has two lateral side members 38 and in this example a frame 40.
  • the frame 40 has a bow-like shape and comprises a cross member 42 and two thereof projecting end supports 44.
  • the cross member 42 may, for example, be connected centrally to an arm 46 (see FIG. 2) of the gantry robot 36 or connected.
  • the device 10 serves as a depositor or effector or end effector of the handling device (gantry robot 36 in this example).
  • the device 10 is connected to a carriage 48 as a moving device or mounted thereon.
  • FIG. 4 shows a side view of the device of FIG. 1, the side rails 38 and the frame 40 being omitted for the sake of clarity.
  • Figs. 4 to 11 are primarily intended to explain certain devices and functions of the device that of Fig. 1 by way of examples.
  • the material rolls 14 and 16 for better distinction from the endless conveyor belt 22 not on the latter.
  • the endless conveyor belt 22 has a drive roller 50 and a deflection roller 52.
  • the fixing device 28 comprises a plurality of vacuum chambers 54 both in the upper middle region and in the lower middle region of the peripheral surface 24.
  • the strength of the negative pressure in the vacuum chambers 54 can be controlled via a volume flow control or regulation 56.
  • the peripheral surface 24 also has perforations (not shown), for example.
  • FIG. 4 also shows two cutting systems 60 and 62 belonging to the finishing device 32, the cutting system 60 serving to cut off the textile web 18 and the cutting system 62 to cut off the textile web 20. Accordingly, the cutting system 60 is in the direction of revolution u in front of the material roll 14 and the cutting system 62 is arranged in the direction of circulation u in front of the material roll 16.
  • Fig. 5 shows a front view, d. H. in Fig. 4 from the left
  • the apparatus of Fig. 4 and Fig. 6 shows a plan view of the apparatus of Fig. 4.
  • the cutting systems 60 and 62 are shown in the lowered position in which they are used for cutting across the Reverse direction u (see also Fig. 8) can be used.
  • the cutting of the textile webs 18 and 20 is usually carried out successively in time, preferably in the sequence that first the web 20 and then the web 18 is cut off.
  • the vertical double arrows in FIG. 9 are intended to indicate that the material rolls 14 and 16 can be positioned so as to be defined in height by means of an actuator (not shown), this preferably taking place or taking place separately for each roll of material 14 and 16. Due to the height adjustment can be made possible on the one hand to interrupt the contact with the running endless conveyor belt 22 and possibly even with an active brake (not shown) to a (further) unwinding prevent, and on the other hand be allowed to press in the continuous storage, the ever-decreasing rolls of material 14 and 16 defined on the endless conveyor belt 22.
  • FIG. 10a and 10b show side views of the apparatus 10 at the beginning of the forming / preforming of the endless conveyor belt 22 and thus also a textile fabric package 26 lying thereon (see in particular the arrows in FIG. 10a) and after the forming / preforming by means of actuators 64 of the preforming device 30.
  • FIG. 11 this is again shown in front view, the actuators 64 being shown in broken lines, since they are actually not visible from the front.
  • FIG. 12 The process of forming or preforming the endless conveyor belt 22 and thus also the textile material package 26 is shown once more by way of example in FIG. 12 for a negative mold 66 (from left to right).
  • FIG. 13 shows the same for a negative mold 68.
  • the preforming device 30 can, for example, comprise a matrix of actuators 70, as shown schematically in FIG. 14.
  • the preforming device 30 comprises, for example, active forming plates 72 (see FIG. 15) or passive forming plates 74 (see FIG. 16). Inflatable sacks are also conceivable.
  • the material rolls 14 and 16 can be moved independently of one another in the axial direction (see double arrows) and 20 defined to hold in position and to be able to maintain a certain distance between the textile webs.
  • FIGS. 18 to 23 show, by way of example, some steps of a method for the continuous deposition of technical textiles in the form of a textile layer package in a molding tool 76 using, by way of example, a device according to one of FIGS. 1 to 3 and / or according to FIGS. 4 to 17.
  • a device according to one of FIGS. 1 to 3 and / or according to FIGS. 4 to 17.
  • some components such as, for example, side members 38 and frame 40 or carriage 48 have been omitted.
  • the storage can be carried out, for example, by means of a handling device or apparatus according to FIGS. 2 and 3.
  • the device 10 is positioned on or above the molding tool 76, and the underside of the endless conveyor belt 22 and thus also the textile layer package 26 are deformed or preformed at least over a partial area by means of the preforming device 50 in order to correspond to the contour of the molding tool 76 or at least being adjusted to it. Then the device 10 is both continuously deposited by moving in the longitudinal direction of the mold 76 while pressing against the mold 76 as well as continuously supplied by the material rolls 14 and 16 by the material rolls 14 and 16 pressed to the top of the endless conveyor belt 22 and the textile webs 18th and 20 are brought together by means of the drive roller 50 in the direction of rotation u driven endless conveyor belt 22 to textile fabric package 26 and guided to the storage point on the underside of the endless conveyor belt 22 (see Fig. 19).
  • a section of the textile web 20 is effected by means of the cutting system 62.
  • the textile web 20 is separated into individual textile material package cutouts 26a.
  • the deposition of fabric lay-up packages may continue at a next forming tool 78 (continuous).
  • the apparatus 10 may, for example, be moved or moved to an adjacent stationary forming tool 78, the next forming tool 78 to be moved or moved onto the apparatus 10, or else both the apparatus 10 and the forming tool 78 to be moved toward one another ,
  • FIGS. 24 to 30 at least some of the steps shown in FIGS. 18 to 23 are shown again in side view.
  • the steps may also belong to a method according to another particular embodiment of the present invention.
  • the positioning and forming / preforming steps are shown in greater detail in FIGS. 24-26.
  • the textile webs 16 and 18 are first brought once with their front ends on the peripheral surface 24 of the endless conveyor belt 22 and fixed thereto by means of the fixing device 28 and conveyed by means of the circulating endless conveyor belt 22 to the underside of the endless conveyor belt 22. Then, the circumferential surface 24 of the endless conveyor belt 22 is deformed or preformed by means of the preforming device 30. This also applies to the textile layer package 26 (see FIG.
  • FIG. 26 the laying down of the preformed textile fabric package on the molding tool 76 then begins. This then continues according to FIG. 27. During transport or conveyance of the textile layer package 26, this is subdivided by means of the packaging device 32 into textile layer package sections 26a (see FIG. 28).
  • FIGS. 29 and 30 then show the end deposit or the retraction of the device 10.
  • the devices shown here allow a continuous storage of technical textiles in a mold.
  • the individual material rolls are positioned one behind the other on the circumferential surface 24.
  • the material roll are pressed onto this surface and are fixed in the axial direction, so that a movement is possible only in the direction of rotation.
  • the driven surface 24 By the movement of the driven surface 24, the rolls of material are rotated and the textile is unwound from the rolls of material.
  • the device enables all rolls of material to be handled simultaneously and at the same and synchronized unwinding speed. As a result, a complicated control can be saved and only one drive is necessary.
  • the device can accommodate and drive one or more rolls of material.
  • the structure of the fabric layer package 26 is determined.
  • the diameter or the material length on the rolls of material can / may be different.
  • the textiles can be fixed to the device. By this fixation of the textiles on the circumferential surface, they adapt to the shape of the circumferential surface and are required and preformed.
  • the differential pressure is variably adjustable.
  • Certain sections of the device can be closed, so that there is a fixation of the textiles only at defined subregions.
  • An integrated cutting unit makes it possible to cut off the textile layer packages for the forming tool.
  • Multiple blanks can be integrated to cut the individual fabric layers separately, or a blanks unit cuts the entire fabric lay package.
  • a section is produced with the finishing device, which extends transversely or at any angle to the direction of deposition. After cutting the textile layer package, it is conveyed to the bottom of the device. After placing the cut textile fabric package in the mold, the device is immediately ready for storage in another mold.
  • the device can, for example, be moved over by means of a carriage over a molding tool.
  • a person can control the feed and the stored textile lay package and change empty material rolls.
  • the device can be integrated in a (partially) automated process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Robotics (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

L'invention concerne un procédé de manipulation et de dépôt en continu de textiles techniques dans un outil de formage (66, 68, 76, 78). Le procédé comprend les étapes suivantes : stocker au moins une bande de textile technique (18, 20) enroulée sur un rouleau de matériau (14, 16), presser le rouleau de matériau contre au moins une surface périphérique (24) d'une bande transporteuse sans fin (22), dérouler la bande de textile du rouleau de matériau par défilement de la bande transporteuse sans fin et par fixation temporaire de la bande de textile au moins sur une zone partielle sur l'au moins une surface périphérique (24), préformer la bande textile transportée par modification de la géométrie de l'au moins une surface périphérique sur une zone partielle de celle-ci dans sa direction périphérique, confectionner la bande textile transportée, déposer une bande de textile ou pièce découpée de bande de textile depuis l'au moins une surface périphérique jusque dans un outil de formage avec réalisation d'un mouvement relatif entre toute la bande transporteuse sans fin plus le rouleau de matériau et l'outil de formage. L'invention concerne en outre un dispositif (10) permettant la mise en œuvre dudit procédé.
PCT/DE2018/100777 2017-09-21 2018-09-13 Procédé et dispositif de manipulation et de dépôt continus de textiles techniques, notamment sous la forme d'un paquet de couches textiles dans un outil de formage WO2019057241A1 (fr)

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DE102017121892.0A DE102017121892B4 (de) 2017-09-21 2017-09-21 Verfahren, Vorrichtung und Verwendung einer Vorrichtung zum kontinuierlichen Handhaben und Ablegen von technischen Textilien, insbesondere in Form eines Textillagenpakets, in ein Formwerkzeug
DE102017121892.0 2017-09-21

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CN114311728A (zh) * 2021-10-29 2022-04-12 航天材料及工艺研究所 一种负曲率复合材料网格结构件及其成型方法

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