EP4178788A1 - Verfahren zum bereitstellen von zuschnitten aus einer faserbahn - Google Patents
Verfahren zum bereitstellen von zuschnitten aus einer faserbahnInfo
- Publication number
- EP4178788A1 EP4178788A1 EP21728413.2A EP21728413A EP4178788A1 EP 4178788 A1 EP4178788 A1 EP 4178788A1 EP 21728413 A EP21728413 A EP 21728413A EP 4178788 A1 EP4178788 A1 EP 4178788A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- blanks
- workpiece
- storage elements
- removal
- order
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000003860 storage Methods 0.000 claims description 85
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 230000001174 ascending effect Effects 0.000 description 12
- 238000009826 distribution Methods 0.000 description 6
- 239000002699 waste material Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- 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
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
-
- 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
-
- 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
-
- 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
-
- 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
- B29C70/543—Fixing the position or configuration of fibrous reinforcements before or during moulding
-
- 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
- B65G61/00—Use of pick-up or transfer devices or of manipulators for stacking or de-stacking articles not otherwise provided for
-
- 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
- B29C2793/0081—Shaping techniques involving a cutting or machining operation before shaping
Definitions
- the invention relates to a method for preparing cuts from a fibrous web in a predetermined sequence for building up a workpiece from these cuts in layers, with the cuts belonging to a removal area of the fibrous web being removed from the removal areas and deposited in at least one storage element for each removal area and then be removed from the storage elements in the order specified for the layered structure of the workpiece.
- Expensive workpieces can be produced from appropriately designed, preferably pre-impregnated or thermoplastic fiber webs by inserting corresponding blanks from such fiber webs into molds and, depending on the design, optionally curing them under pressure.
- the layered structure of the workpiece from individual different blanks requires the provision of these blanks in a sequence determined by the layered structure of the workpiece to be produced.
- this sequence cannot be taken into account when distributing the cut pieces over the surface of the fiber web, taking into account a minimum of waste. This means that the cuts, which are to be available in a sequence determined by the layered structure of the workpiece, are distributed over the fiber web surface in a random manner with regard to this sequence (DE 202007006528 U1).
- the individual cuts must therefore be made using appropriate Handling devices are excavated from the fiber web and either temporarily stored on at least one storage table or fed directly to a laying-up station for the formation of a shaped body. Irrespective of whether the blanks required to build up the shaped body are fed directly to the placement station or are initially placed next to one another or in stacks on at least one storage table, the blanks have to be sorted according to the layered structure of the shaped body to be formed, which is the case with workpieces made up of a large number of blanks requires a complex, time-consuming sorting process for the blanks.
- the blanks are lifted from the storage element by the turning device in the distribution layer and turned by 180° around a horizontal axis, in order to then be individually inserted into the mold using a laying device in the order of the layer structure of the workpiece to be produced. Since the distribution position of the blanks in the removal areas and their sequence within the sequence of the workpiece to be produced are known and these parameters do not change when the blanks are removed or when the blanks are further conveyed by means of the storage elements and the turning device, the individual blanks can be positioned precisely by the laying device recorded and introduced into the mold in the order specified by the sequence of positions in the workpiece will.
- a particular disadvantage is that due to the absolutely necessary retention of the distribution layer after the removal of the blanks from the respective removal area of the fiber web, storage elements with corresponding storage areas have to be provided.
- all the blanks that are required for the construction of at least one section of the workpiece comprising several layers must be able to be made available by a storage element in a corresponding order, so that despite the possible unordered distribution of these blanks over a removal area of the fiber web, a possibly considerable Waste must be accepted.
- These known sorting systems are therefore essentially only suitable for workpieces whose layers can be provided by blanks from a single removal area, which considerably limits the area of application.
- the blanks for the individual layers can be placed together in storage elements (WO 2012/104174 A1) in order to then place the blanks on the individual storage elements by at least one robot in the layered structure of the workpieces to be produced to be able to remove the order and insert it into the mould. Since matching blanks for a large number of workpieces are to be provided aligned next to one another on the storage elements, the storage elements in turn require a considerable amount of space for accommodating the individual blanks. Apart from that, such sorting devices are only suitable for the production of workpieces with a comparatively small number of layers.
- the invention is therefore based on the object of specifying a method with the help of which a large number of blanks, which are distributed independently of a removal sequence in a fiber web, can be removed from the fiber web in a row without laborious searching advantageous transfer of the blanks in a predetermined order determined by the workpiece structure.
- the invention solves the problem in that the blanks individually removed from the removal areas are stacked one on top of the other in the storage elements in the opposite order to their position in the workpiece.
- the blanks cut out of the fibrous web are removed from a removal area regardless of whether the blanks in this removal area form a sequence determined by the structure of the workpiece, the blanks required for the production of a workpiece are progressively released from the fibrous web from removal area to removal area, resulting in a time-consuming searching of the fiber web for cuts for specific layers in the workpiece is no longer necessary.
- pre-sorting can be carried out that allows subsequent transfer in a comparatively simple manner in a sequence determined by the workpiece structure.
- the individual blanks whose sequence within the workpiece structure is known, are stacked one on top of the other in at least one storage element for each removal area, which corresponds to the reverse order of the respective position sequence in the workpiece. This means that the blanks in each storage element are stacked one on top of the other in a descending order of their order when the workpiece is built up from the individual blanks in an ascending order.
- the order of the individual cuts is determined by the position in the workpiece structure specified for each cut, so that the cut for the i-th position has the i-th order. If, for example, a removal area includes the blanks for the third, eighth and nineteenth layer of the workpiece, if these blanks are in order three, eight and nineteen, then these blanks are placed in a storage element in a stack with an ascending order of the associated layers stored in the workpiece in descending order, so that the blank for the eighth layer and then the blank for the third layer are placed in the stack on top of the blank for the nineteenth layer. Consequently, the blanks can be successively removed from the stack of the respective storage element according to the ascending order of the layers of the workpiece to be produced.
- the blanks can be removed from the blank stacks of the individual storage elements in a sequence corresponding to the workpiece structure.
- the next blank in the sequence of layers required for the layer-by-layer production of the workpiece after a blank has been placed in the mold always forms the top layer of a stack of storage elements, so that the blanks are removed from the stacks of storage elements in the order required for the layered structure of the workpiece be able.
- the minimum number of storage elements depends on the number of removal areas.
- the removal of the individual blanks can be accelerated by providing at least two grippers for the blanks, because the grippers can store the blanks they have gripped independently of one another in separate storage elements to form stacks, namely in each case in a descending or ascending order within the stack that is required for the layered structure of the workpiece and depends on the ascending or descending order of the layers in the workpiece.
- the individual blanks not only have to be removed from the stacks of storage elements in an ascending or descending order, but also transferred to the mold for the workpiece in an aligned position.
- the individual blanks can be stacked in a predetermined position in the storage elements and placed one above the other, so that the position of the storage elements determines the spatial orientation of the individual blanks that are aligned in the storage elements and the blanks can be removed from the storage elements without their orientation being determined again be able.
- the alignment of the blanks in relation to the storage elements does not have to match the original alignment of the blanks within the fiber web.
- An alignment is preferably selected that allows the blanks to be stacked on the storage elements in a space-saving manner.
- blanks Zi corresponding to the individual layers are cut out of a pre-impregnated fiber web 1, for example, and placed in a sequence corresponding to the sequence of layers in a mold provided for manufacturing the workpiece.
- the individual blanks Zi are arranged distributed over the fibrous web 1 according to their size and geometric outline shape, regardless of their position in the workpiece structure.
- the order i of the blanks Zi is determined by the succession of the individual layers of the workpiece, i standing for the series of numbers 1 to n if n is the total number of blanks required for the workpiece structure.
- the cuts Zi are successively assigned to individual removal areas Ej removed and stored aligned in stack form in at least one storage element A ⁇ for each removal area Ej, in each case in an ascending or descending order which corresponds to the descending or ascending order of the layers in the structure of the workpiece to be produced.
- a storage element Ai is first provided for the stacked reception of the blanks Zi from a store 2.
- the blanks Z3, Z17 and Z7, provided with a corresponding identifier for their order, are removed from the removal area Ei with the aid of a removal device 3 indicated by dot-dashed lines due to the ascending order of the layer sequence of the workpiece to be produced in an order corresponding to their descending order from the fiber web 1, so that initially the Blank Z17 is removed from the fiber web 1 in the orientation specified by the position in the fiber web 1 and placed on the support element Ai, specifically in a specific orientation relative to the placement element Ai, which does not have to match the original orientation and is preferably selected in this way that the space available on the storage element for stacking the blanks Zi can be used advantageously.
- the blank Z7 and finally the blank Z3 are each aligned opposite the placement element Ai and placed one above the other to form a stack on the blank Z17.
- the loaded storage element Ai is conveyed into a store 4, from which the individual storage elements A ⁇ can be made available for the removal of their blanks Zi.
- the memory 4 is shown as a memory separate from the storage memory 2 for reasons of clarity, in practice only one memory will often be provided the tasks of both the storage 2 and the memory 4 takes over.
- the fiber web 1 is conveyed further in the direction of arrow 5 in order to align the removal area E2 with respect to the removal device 3.
- the removal process is repeated, with the blanks Z20, Z14 and Z9 being placed one after the other on an empty storage element A2 from the store 2 to form a stack before the storage element A2 is stored in the storage 4.
- the blank Z9 is placed on the storage element A2 rotated by 90° with respect to the orientation in the fiber web 1 .
- the blanks Zi from the removal area E3 are placed on top of one another in a descending order to form a stack in an analogous manner on a storage element A3, with the blank Z18 being laid down in an aligned manner on the storage element A3 and then the blanks Zs and Z5 are stacked on top of each other on the blank Zis in order to have this stack available after storage of the storage element A3 in the store 4 for removal of the blanks Zi.
- the blanks Z12 and Z2 of the removal area E4 are removed from the fiber web 1 in the same way and laid down in a storage element A4 aligned to form a stack before the storage element A4 is transferred to the store 4 .
- the blank Z12 was rotated before it was deposited in order to improve stackability on the storage element A4.
- these blanks Zi stacked in the storage elements Aj can be in one of the ascending order of the layers in the workpiece corresponding, continuous sequence are successively removed from the storage elements Aj and introduced into the mold for the production of the workpiece.
- the storage elements Aj loaded with the associated blanks Zi are shown in the drawing one after the other corresponding to the removal areas Ej, although these storage elements Aj, after being loaded with the blanks Zi, are transferred from the associated removal area Ej to the store 4 before the Blanks Zi of the subsequent removal area Ej+i are stacked on a new storage element Aj+i.
- the stored, loaded storage elements Ai-A4 with the stacks of blanks are indicated in the storage 4, the storage elements Aj not having to be stored in the storage 4 in the order of the removal areas. All that is required is knowledge of the memory locations in which the individual storage elements Aj are located.
- these blanks must be introduced into a corresponding mold in ascending order, starting with Zi, so that the blank Zi forms the bottom layer and the blank Z n the top layer of the workpiece to be produced.
- the blank Z2 is therefore removed from the storage element A4.
- the individual blanks Zi can thus be removed from the individual storage elements Aj in an ascending order, without rearranging them in the individual storage elements Aj.
- the sorting process can be significantly accelerated because the Removal area Ej available storage elements Ajk can be loaded independently of each other via separate grippers with the blanks Zi, again for each storage element Ajk in a descending order.
- removal areas E of the fiber web 1 do not only have to contain blanks Zi for a workpiece. are in one
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
- General Factory Administration (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Pile Receivers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50587/2020A AT523962B1 (de) | 2020-07-08 | 2020-07-08 | Verfahren zum Bereitstellen von Zuschnitten aus einer Faserbahn |
PCT/AT2021/060168 WO2022006602A1 (de) | 2020-07-08 | 2021-05-12 | Verfahren zum bereitstellen von zuschnitten aus einer faserbahn |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4178788A1 true EP4178788A1 (de) | 2023-05-17 |
Family
ID=76180818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21728413.2A Withdrawn EP4178788A1 (de) | 2020-07-08 | 2021-05-12 | Verfahren zum bereitstellen von zuschnitten aus einer faserbahn |
Country Status (5)
Country | Link |
---|---|
US (1) | US20230234308A1 (de) |
EP (1) | EP4178788A1 (de) |
AT (1) | AT523962B1 (de) |
AU (1) | AU2021306727A1 (de) |
WO (1) | WO2022006602A1 (de) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5209804A (en) * | 1991-04-30 | 1993-05-11 | United Technologies Corporation | Integrated, automted composite material manufacturing system for pre-cure processing of preimpregnated composite materials |
DE10145308C1 (de) * | 2001-09-14 | 2003-03-13 | Daimler Chrysler Ag | Verfahren zum gewichtsgenauen Zusammenstellen von Harzmattenstapeln für die Herstellung von SMC-Teilen |
US7423523B2 (en) * | 2005-08-03 | 2008-09-09 | The Boeing Company | Composite ply layup using electronically identifiable tags |
DE202007006528U1 (de) * | 2007-05-04 | 2008-09-18 | Kuka Systems Gmbh | Einrichtung zum Handhaben von Materialstücken |
CH704406A1 (de) * | 2011-01-31 | 2012-07-31 | Kringlan Composites Ag | Verfahren zur Herstellung von Vorformen. |
DE102012006032A1 (de) * | 2012-03-27 | 2013-10-02 | Mbb Fertigungstechnik Gmbh | Verfahren zur Herstellung eines flächigen Prepreg-Materialzuschnitts |
JP6613550B2 (ja) * | 2014-06-23 | 2019-12-04 | 株式会社Ihi | プリプレグ切断積層装置 |
DE102014223982B3 (de) * | 2014-11-25 | 2016-04-28 | Volkswagen Aktiengesellschaft | Prozessanordnung zur Herstellung eines faserverstärktenKunststoffbauteils |
-
2020
- 2020-07-08 AT ATA50587/2020A patent/AT523962B1/de active
-
2021
- 2021-05-12 EP EP21728413.2A patent/EP4178788A1/de not_active Withdrawn
- 2021-05-12 US US17/925,035 patent/US20230234308A1/en active Pending
- 2021-05-12 AU AU2021306727A patent/AU2021306727A1/en active Pending
- 2021-05-12 WO PCT/AT2021/060168 patent/WO2022006602A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
AU2021306727A1 (en) | 2022-10-06 |
AT523962B1 (de) | 2023-05-15 |
WO2022006602A1 (de) | 2022-01-13 |
US20230234308A1 (en) | 2023-07-27 |
AT523962A1 (de) | 2022-01-15 |
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