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
  • B29C70/30—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
  • 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
  • B29C70/06—Fibrous reinforcements only
• • 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
  • B29C70/06—Fibrous reinforcements only
  • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
  • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
  • B29C70/20—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres
  • B29C70/202—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in a single direction, e.g. roofing or other parallel fibres arranged in parallel planes or structures of fibres crossing at substantial angles, e.g. cross-moulding compound [XMC]
• • 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
  • B29C70/34—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 and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
• • 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
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B38/00—Ancillary operations in connection with laminating processes
  • B32B38/18—Handling of layers or the laminate
  • B32B38/1808—Handling of layers or the laminate characterised by the laying up of the layers

Definitions

• the invention relates to a method according to the preamble of claim 1 and a device according to the preamble of claim 13.
• high-performance fiber composite components In many areas of application, e.g. B. in the aerospace industry, high-performance fiber composite components have become established, which are particularly suitable wherever low weight and high mechanical strength are required.
• the high-performance fiber composite components can be produced by laying down endless fiber-reinforced tapes, also called tapes.
• the reinforcing fibers can e.g. exist as yarns, fabrics or scrims and consist of carbon, glass or other natural or man-made materials.
• the fibers are fixed in the bands and / or embedded in a plastic matrix, which consists, for example, of a thermoplastic or a thermoset. If the tapes are at least largely embedded in the plastic matrix before being placed on the workpiece or on a substrate, one speaks of prepreg tapes (pre-impregnated fibers). Prepreg tapes can be placed on their storage side with a
• Tacking material e.g. be provided with a reactive hot melt adhesive and / or lie on a carrier material which is removed before the strips are put down. It is also possible to lay down and fix dry fibers in order to subsequently impregnate them and / or to coat them with a plastic matrix, so that the finished tape is produced as it is being laid down.
• binders, fusion threads or sewings can be used as a fixing medium for dry fibers.
• belts are mechanically advanced or advanced, pressed onto a substrate and automatically deposited.
• the tapes can be cut to the desired length before or during storage.
• several belts are defined
• the bottom layer of the fiber composite material can be placed on a substrate, which is later part of the finished workpiece or is removed again.
• the thickness of the component is created by placing several layers on top of one another, possibly also with different fiber orientations, in order to meet specifications with regard to To meet laminate construction. In this way, local component reinforcements or preferred directions can also be achieved and local workpiece areas can be omitted. Material costs in the component can thus be reduced.
• the application stations each have a plurality of laying heads for the strip material to be deposited.
• the laying heads are arranged on a common carrier unit which can be moved transversely to the conveying direction of the conveyor belt.
• Laying heads each have an axis that is perpendicular to the conveying plane
• a tape booklet which according to the drawings comprises a plurality of individual devices arranged in series, presumably ultrasound sonotrodes.
• Laying head units that are accessible for a common laying table the laying head units are independent of each other and each have their own material feed unit, a cutting device, gripping means for the belts and an associated linear drive for each gripping means, guideways for the respective band to be laid down and a band stitching unit.
• one band section can be stretched to length, positioned in guideways and stapled in position with the first laying head unit on the part to be produced, while at the same time the next band section is stretched to length and on the second
• Laying head unit is positioned in the guideways. After the first
• DE 20 2016 105 889 U1 discloses a further device for the production of workpieces comprising fiber composite material, in which fiber composite material tapes are placed on a laying table which can be rotated and translated by means of an application station. With suppression they become producing workpieces fixed on a table top of the table. The table is moved several times under the application station for the application of several layers and, if necessary, rotated to enable different directions of deposit for the belts. Each volume is stored individually.
• a buffer system is disclosed, which can be designed as a dancer system, for example, and holds a tape supply that allows a tape supply to be exchanged without having to interrupt the production process.
• the buffer system can serve to enable the stopping process in the area of the cutting edges required for cutting the strip to the desired laying length without interrupting a continuous unwinding of the strip from the supply. Furthermore, it is disclosed to supply the strip material to the depositing process as strips which have already been cut to length. In this way, a cutting process can be unnecessary. For the filing process, the cut strips are suspended in the
• No. 8,048,253 B2 describes a tape laying device which, in one variant, has several laying heads, so that it becomes possible to use several tapes or
• the strip material is fed to a cutting device, which cuts off a strip of the desired length and then places it with the associated depositing unit on the processing surface of a table that can be moved in two directions on a shifting plane and around one that is perpendicular to the shifting plane Rotation axis can be rotated.
• the separated strip is guided in the laying head in each case in guide rails which are arranged on both sides of the strip, edges of the strip being held in grooves in the guide rails.
• the ligaments are fixed using ultrasound sonotrodes.
• laydown pattern differs from layer to layer, it may be necessary that only a part of the
• Storage units are used in a certain position. Depending on the placement pattern, this can result in long downtimes for the placement units. This results in an unused investment and a high amount related to the installation space
• Mold tools called are transported to the application stations by means of a conveyor carriage.
• the respective holding means In the entrance area of the respective application station, the respective holding means is placed on a tool table of a slide that can be moved in the X direction by means of a handling unit, which is then moved under a depositing head within a depositing chamber that can be closed with doors.
• the storage head In the storage chamber, the storage head can be moved in the Y direction and in height, while the slide remains movable in the X direction and the tool table can be rotated.
• a method of moving the table in the X direction during tape laydown is also disclosed.
• three-dimensional base units (forming tools) can be covered with tapes within the closed storage chamber.
• a single application station is known from WO 2017/127276 A1, through which a depositing table rotatable about its vertical axis is located on one
• Conveyor is guided back and forth. It can be assumed that before Depositing the belts, the depositing table is rotated into the desired orientation and the depositing unit for the strip depositing is moved in translation in a direction perpendicular to the conveying direction of the conveying device. The tapes are thus deposited with the deposit table stationary and in the application station with a moving deposit unit.
• EP 1 422 048 A2 discloses a movable workpiece
• bridge-shaped storage unit with a variety of laying heads.
• the placement heads are staggered on both sides of the bridge crossbar so that a gapless
• Laying down is possible, but for this purpose two moving operations of the laying unit are provided in opposite directions.
• a complex machine is known from DE 10 2016 104 926 A1, in which strip material taken from a spool is first cut and then fed to a depositing unit via narrow conveyor belts. Take off heads by
• Vacuum the cut pieces of tape lead them to a table and lay them down. If a sufficient number of tapes are deposited in a first layer, the deposited layer is picked up by a transport unit and placed on another table. This second table is rotated in order to be able to place another layer on the first storage table with the desired orientation on the first layer.
• the invention concerned here is based on the technical problem of providing a method and a device of the type mentioned at the outset, which can be more economical than the prior art, e.g. through the
• Workpieces comprising fiber composite material, in which a base unit held by holding means of a conveying device is guided through at least one application station and at least one for forming the workpieces at the application station or at least one of the application stations during a translation movement of the base unit by the application station concerned
• Laying down a tape in the sense of the invention means both the laying down of a prepreg tape and the laying down of fiber material which is impregnated with a binder and / or surrounded with a plastic matrix only immediately before, during or immediately after the laying down.
• the laying down of a tape on the base unit means both the application of a first layer to the base unit and the application of a further layer to at least one already existing layer of deposited tapes.
• basic unit in the sense of the invention includes both a free basic basic unit not yet covered with tape material, such as e.g. to understand a carrier element, substrate, an organic sheet, a textile material or a plastic film, as well as a basic base unit, on which strip material has already been deposited down to the finished workpiece.
• the basic base unit can be part of the finished
• Workpiece are or, preferably reusable, are separated from the applied workpiece.
• a base unit should also be understood to mean a first layer with at least one belt that is not deposited on a base base unit. Such a first
• tape material is understood to mean both a prefabricated tape (prepreg tape) with reinforcing fibers and binders and / or plastic matrix as well as a fiber material originating from a supply roll, which has already been pre-impregnated or not impregnated and which may not be present until shortly before it is deposited during the
• the conveyor can e.g. have driven friction conveyor belts, roller tracks, ball tracks, vacuum belts, magnetic slides and / or trolleys with linear drive.
• the conveyor device can consist of several conveyor sub-devices, so that the overall conveyor device can be arranged or assembled in different configurations.
• Alignment unit can preferably be viewed as part of the conveyor.
• the change in the orientation of the base unit relative to the holding means means a much smaller mass to be moved, based on the amount of strip material to be deposited.
• storage units have to have additional complex robot-guided motion actuators for the tape storage. Because in the area of the application stations
• mobile storage units can be dispensed with, there can be a static
• Process zone are set up so that local protective enclosures, process Sensor technology, additional processes and the endless feeding of the strip material can be realized inexpensively.
• Access base unit Grasping or fixing the base unit through the
• the alignment unit can be supported by gravity and, if necessary, reinforced by additional technical features.
• the change in orientation there are, for example, at least one abutting edge, which is preferably attached to the conveying device, conveying elements running at different speeds, e.g. Bands, slides, or pitfalls.
• the alignment unit can also be used to stack a plurality of
• Base units must be set up. It is conceivable that to change the orientation of the uppermost base unit, the entire stack of base units in the
• Orientation is changed, preferably rotated.
• the stack can be for the
• the change of orientation can e.g. a rotation around one perpendicular to one
• Conveying plane aligned axis of rotation the base unit being conveyed parallel to the conveying plane, e.g. lying directly or indirectly on the funding level.
• differently oriented axes of rotation are alternatively or additionally possible, e.g. to turn the base unit.
• the inventive method can also be carried out so that the
• Orientation change occurs while the base unit is being conveyed on the conveyor.
• the alignment unit would move in the conveying direction together with the base unit or with a stack of the base units.
• Actuators for changing the orientation can be carried by the conveyor.
• the alignment unit can also be viewed as part of the conveyor.
• the base unit it is also conceivable for the base unit to be accessed by a unit that is additionally moved to the conveying device.
• the change in orientation can also be carried out during a conveyor stop, regardless of whether the actuators for the change in orientation are carried by the conveyor or not.
• the first layer consisting of at least one belt can be deposited directly on an element of the conveyor, e.g. on the holders of the conveyor, which creates a base unit for depositing at least one additional layer.
• the method according to the invention can also be carried out in such a way that a first layer consisting of at least one band does not lead to a
• the method according to the invention can be carried out such that heat is applied to the base unit in the conveyor device at least also outside the at least one application station.
• This can be carried out by means of at least one temperature control unit arranged along the conveyor. In this way, an effort to heat the base unit in the application station following in the conveying direction behind the temperature control measure can be avoided or reduced. It can also be harmful
• the method according to the invention can be carried out in such a way that strip material for forming the at least one strip in at least one
• Storage container is kept. It can be particularly advantageous if at least one of the application stations has at least two of the storage containers of this type be equipped with tape material so that they are exhausted at the same time or at least approximately at the same time when the tape is laid down in a predetermined pattern. This has the enormous economic advantage that the storage containers involved can be exchanged at the same time without a significant remainder of the
• Tape material remains in at least one of the storage containers.
• Storage containers can e.g. around a spool or a roll with wound tape material or a magazine with e.g. stacked tape material or
• the method according to the invention can be carried out such that the strip material of the second storage container is joined to the strip material of the first storage container before a first of the storage containers is replaced by a second of the storage containers.
• the joining can be done manually or preferably in an automated process. In this way it can be achieved that even when a storage container is replaced, the production process can be continued continuously or only has to be interrupted for a relatively short time. It can be provided that the strip material is guided over a buffer zone, for example with a dancer system.
• the method according to the invention can also be carried out in such a way that, by introducing predetermined separation points, at least a part of the strip material is divided into pieces of strip material that are easier to separate from one another, the length of which corresponds exactly or at least essentially to the length of the strip to be formed therewith. In this way, a separate cutting process can be avoided.
• the desired separation points can be introduced, for example, by perforating or partially severing the tape material in the width direction, by connecting the ends of successive tape material pieces by means of adhesive coupling pieces or by tacking the overlapping ends of the successive tape material pieces to one another or by fixing separate tape material pieces on a carrier film.
• the separation at the predetermined separation points can, depending on the type of the predetermined separation points, for example by simply pulling off the carrier film, by pulling or by introducing heat or radiation, in particular Laser radiation can be achieved, so that a cutting device, especially one with mechanical cutting, can be saved.
• the method according to the invention can also be carried out in such a way that
• Pressure element of a storage unit is pressed against the base unit. This is preferably done by means of at least one stationary storage unit, under which the
• Base unit is carried out.
• Pressure element spaced area is acted on the tape material, in particular the tape material is pre-positioned before contact with the base unit on the affected pressure element, pretreated, in particular preheated, and / or tacked. If the basic units are conveyed on a horizontal conveying level in the gravitational field, the strip material is thus affected from an area below the conveying level.
• the conveying device is to be designed at least temporarily in the area of the respective pressure element.
• the pretreatment can e.g. also be applying an adhesive.
• tacking is desired, this should be done, if possible, in such a way that when the pressure element comes into contact with the base unit conveyed by the conveyor, the beginning of the piece of tape material contacts the base unit exactly at the point at which the tape to be deposited should begin according to the predetermined deposit pattern. Subsequent cutting or removal processes can thus be avoided.
• the inventive method can also be carried out so that the
• Pressure element by means of a through the pressure element, for example a
• the pressure element can also be designed, for example, as a pressure caterpillar or sliding shoe.
• the cooling provides effective protection for the material of the pressure element concerned.
• the device according to the invention can advantageously be designed such that at least one pressure element arranged on the depositing unit or on one of the depositing units is cooled by means of a cooling fluid, the
• Pressure element is a pressure roller mounted on a fixed axis fixed in a roller holder, wherein the pressure roller is a for contact with the
• band material provided jacket element and at least part of a cooling fluid line runs between the axis and the jacket element or is formed by at least one chamber arranged between the jacket element and the axis. It can be particularly advantageous if the bearing of the pressure roller is arranged within a useful width of the pressure roller. In addition, the cooling fluid can be guided directly into the fixed axis via the roller holder, so that there is an inherent rotary feedthrough. Seals required for guiding the cooling fluid can thus also be within the useful width of the pressure roller
• the method according to the invention can also be carried out in such a way that at least two base units are conveyed simultaneously in the conveying device and the at least two base units are successively passed through at least two application stations, preferably at least two of the application stations
• the Orientation of the placement pattern provided in a specific application station on the base unit is predetermined by the orientation of the base unit in space and thus relative to the application station and the conveying direction and can be influenced by an orientation change that is possible with the alignment unit.
• the placement patterns can be planned in the application stations in such a way that all of the placement units present in the application stations
• a cycle in the conveyance of the base units can be set, with which at least one base unit is present at any time in or in front of the application station, so that an optimized utilization of the depositing units and thus the downtimes of the depositing units can be achieved.
• the division of the depositing units into a plurality of application stations also has the advantage that the depositing of tapes of different widths is facilitated, in particular in different tape positions. Storing wider tapes can increase the cost effectiveness of the production process. On the other hand, very small strip widths can minimize waste at the edge of the workpiece. Providing different tape laying widths would be problematic, for example, in the prior art, which provides a rotatable depositing table for moving below a single application station.
• the depositing units and the means for the tape feed can be designed to be easily exchangeable, so that the respective depositing pattern can be changed easily. Order-specific configurations are therefore easy
• the device according to the invention can also be designed such that the
• Application station or at least one of the application stations has at least two storage units stationary in the production process, storage locations of the
• Storage units are arranged at a distance from each other in the conveying direction.
• Stationary means that the placement unit is not changed in its position relative to the application station.
• the distance in the conveying direction facilitates or only enables lateral access, that is to say access required transversely to the conveying direction, for repair, maintenance or replacement of a storage unit or parts thereof.
• the distance in the conveying direction can be designed in such a way that the distances of the depositing units in the depositing surface perpendicular to the conveying direction correspond to the widths of the belts to be deposited. That is, it can be one in a single pass
• Alignment change of the base unit or without alignment unit feasible and can be seen as inventive in itself.
• Fig. 4-9 different distribution plans for storage locations of an application station
• Fig. 16 a partial section of a storage unit with fluid-cooled only partially shown
• FIG. 20 a production device for the flow diagram according to FIG. 19;
• FIG. 21 a base unit and a folding element in a side view
• FIG. 22 the folding element according to FIG. 21 in a top view.
• FIG. 1 schematically shows a top view and FIG. 2 shows a side view of a conveying subunit 1 of a conveying device of a first, which is not shown entirely here
• Production device with an application station 2 In the top view in FIG. 1, a plurality of depositing units 3 (only two of which are provided with reference numerals) are shown for the application station 2, which supply from supply spools 4 (only two of which are provided with reference numbers) with strip material (not shown) become.
• Fig. 1 top left is the base unit 5 with tapes 6 already applied of different lengths of a first deposit layer in a first stacking device 7.
• Fig. 2 the base units 5 are before entering the
• Application station 2 not yet provided with tapes 6.
• a band 6 of a first depositing layer is indicated only to the right of the application station 2.
• Stacking device 7 allows a stack of base units 5 to be received on a first carrier element 8.
• the first stacking device 7 also has a rotation device 12, symbolized here only by arrows, with which the carrier element 8 and thus the entire stack of the base units 5 can be rotated around the stack and thus the uppermost base unit 5 in a specific orientation before entering the
• the first stacking device 7 thus simultaneously serves as an alignment unit 11.
• the base unit 5 is fed to a second stacking device 9, in which the base units 5 can in turn be received in a stack on a second carrier element 10.
• the base units 5 can be returned from the second stacking device 9 to the first stacking device 7 with a second conveying subunit, not shown here, in order to be re-loaded with belts 6 in the application station 2 after a possibly changed orientation.
• the base units 5 to the right of the application station 2 in FIG. 1 already show tapes 6 of a second storage layer. This cycle can be carried out as often as required. The transportation is done by the second
• Stacking device 9 for the first stacking device 7 is preferably carried out automatically by means of the conveyor device, which is not shown in further detail.
• the base units 5 can also be used for other applications.
• the stacking devices 7 or 9 for the base units 5 have the advantage that they can be used as a buffer in the production process. Basically, the Alignment of the base units 5 before entering the application station 2, however, is also carried out individually on the base units 5 by other alignment measures, not shown here. Stacking is not necessary.
• Fig. 3 shows in supervision a second designed as a production line
• the base unit 5 not yet occupied with belts 6 (top left in the picture) is guided by a first conveyor sub-unit 13 through a first application station 14 and there with a first storage layer occupied by tapes 6.
• the base unit 5 is rotated in a first alignment unit 15, which is only symbolized by rotation arrows, with a rotation axis perpendicular to the conveying plane by a certain angle.
• the conveyor unit 16 is fed to the base unit 5 of a second application station 17 and provided with a second deposit layer of belts 6.
• This scheme is implemented via a second alignment unit 18, a third conveyor subunit 19, a third application station 20, a third alignment unit 21, a fourth conveyor subunit 22 and a fourth application station 23, a fourth
• Application station 26 a fifth alignment unit 27 and a sixth
• Conveyor unit 28 continued with a sixth application station 29, so that ultimately the belts 6 are present in six layers on the base unit 5.
• the different application stations 14, 17, 20, 23, 26 and 29 each have different arrangements of storage locations 30 for the belts 6, only one of which is provided with a reference symbol.
• the storage location 30 is understood to mean the location at which the strip material is pressed onto the base unit 5 by means of a pressure roller, which is not yet shown here.
• each distribution layer in the second has a different distribution of the storage locations 30
• Production device according to FIG. 3 shows a different laying pattern of the deposited tapes 6.
• FIG. 4 to 9 show different arrangement options for storage locations 30 on the respective conveyor subunit 1, of which only two are provided with reference numerals in the figures for the sake of clarity.
• a base unit 5 is shown on the left in the figures, in FIG. 4 also in a dashed line in a previous orientation. At the right end of the conveyor part unit 1, the base unit 5 is in each case with the
• Storage locations 30 applied tapes 6 (only two of the seven tapes with
• the associated depositing units can be made wider than the width of the strip to be deposited, which has made the construction of the depositing units considerably easier.
• the staggered arrangement of storage locations 30 enables lateral access to the storage units 3 (not shown in FIGS. 4 to 9), e.g. to the
• each deposit location 30 includes a deposit unit, not shown in FIG can be supplied with tape material 31 by means of supply spools 4.
• a plurality of supply coils 4 are arranged side by side in a first row of coils 32 and a second row of coils 33.
• the storage locations 4 in the two rows of spools 32 and 33 are also arranged offset from one another in the storage locations provided offset from one another (compare storage locations 30 in FIG. 8) for the strip material 31. In this way, a dense deposit layer with abutting bands 6 is achieved.
• the supply spools 4 have different amounts of strip material 31.
• the amount of strip material 31 in the middle supply spools 4 of the spool rows 32 and 33 is substantially higher than in the supply spools 4 arranged at the respective edge.
• the quantity of strip material 31 present in the supply spools 4 is adapted to the strip pattern to be deposited and thus selected that when the tapes 6 are laid down as planned, the supplies of the tape material 31 in all spools 4 come to an end at the same time. This has the advantage that the supply spools 4 can all be replaced simultaneously without any significant residues of tape material 31 remaining in one of the spools 4.
• the strip material 31 of two different supply spools 4 can be joined together using the method shown in FIG. 11.
• Fig. 11 shows a first supply reel 4a, the supply of strip material 31 a is running out. Above the first supply reel 4a there is a second supply reel 4b, the supply of strip material 31b is still complete.
• the respective strip material 31a or 31b is fed via a deflection roller 34a or 34b to a joining device 35, in which the strip material 31a and 31b are joined together.
• a possible thickening of the strip material during joining can be cut off or neglected during the laying process.
• the replacement of the supply coils 4 for all the coils 4 of the coil row 32 or 33 can be carried out since the coils 4 of the coil rows 32 or 33 are largely used up simultaneously.
• FIG. 12 schematically shows a third production device with three conveying sub-units 36, 37, 38, each with an application station 39, 40, 41 with different ones
• Alignment units 42 and 43 are each arranged for aligning the base units 5, which are only symbolized by rotation arrows.
• Application stations 39, 40 and 41 are each one above the conveyor level
• Temperature control arrangement 44 is provided (not shown in FIG. 12), so that the temperature of the base unit 5 drops only slightly on the conveyor path between the application stations 39, 40 and 41.
• One of the temperature control assemblies 44 which by means of heat radiation 45, e.g. Infrared light, on which the base unit 5 acts, is shown schematically in FIG. 13.
• heat radiation 45 e.g. Infrared light
• FIG. 13 Other varieties are also possible, e.g. inductive
• Application station for example 40 or 41, which are kept short for the time required for heating.
• Above the third production device is a diagram with an example of the temperature T B in the base unit 5 without the influence of one or more temperature control arrangements 44
• a pressure roller 48 of a depositing unit 3 which is not shown entirely here, is supplied with strip material 31, which is provided for depositing on the base unit 5 arriving from the left.
• the pressure roller 48 is accessible from below the conveying plane 49 given by the underside of the base unit in order to allow heat to be introduced dQ / dt onto the strip material 31 lying against the pressure roller 48 and also to apply the strip material 31 to the pressure roller 48.
• the tape material 31 is preferably applied in a targeted manner at a point on the pressure roller 48 which comes together with the starting point of the desired tape deposit on the base unit 5 when the pressure roller 48 is unrolled. To apply the tape material 31 to the pressure roller 48, one not shown here
• Pressure element can be used.
• FIG. 15 schematically shows a depositing unit 3, which is supplied with tape material 50 by a supply reel 4.
• the belt material 50 is conveyed by means of pairs of drive rollers 51, of which preferably only one is active in each case is driven via a guide unit 52 to a pressure roller 53, which the strip material 50 on the front of the two shown in the conveying direction
• Base units 5 stores.
• the tape material 50 is by means of a photonic
• Meat unit 54 for example a laser, heated immediately before being put down.
• Base units 5 conveyed to pressure roller 53 are detected with a proximity sensor 55, which furthermore controls the pressure force (symbolized by arrow) of pressure roller 53 on base unit 5, for example via one not here
• the pressure roller 53 is designed to be elastic on its circumference
• the strip material 50 is guided via a buffer area 63, which decouples the advance of the strip material 50 towards the pressure roller 53 from the inertia of the supply reel 4.
• the strip material 50 is pre-cut into pieces of strip material, the contact points 56 forming the desired separation points loosely, for example by means of a binder which melts below the melting temperature of the plastic matrix of the strip material 50,
• Lever element 57 arranged between two lever arm pieces 103 and 104
• Pinch roller 48 with one for contact with strip material to be deposited
• the pressure roller 48 is on one of the
• Lever arm pieces 103 and 104 fixed axis 58 mounted with bearings 102.
• a ball bearing is indicated in FIG. 16.
• Other types of bearings, such as roller bearings or plain bearings, are of course also possible.
• the arrangement of the bearings 102 within a useful width of the pressure roller 48 predetermined by the width of the casing element 101, in this case 16 shown between the lever arm pieces 103 and 104, leads to the fact that the width of the lever element 57 is not increased by the bearings 102, whereby a more compact design with adjacent storage units is possible.
• the fixed axis 58 has bores 59, through which a cooling fluid can be guided into a chamber 60 rotating around the axis 58.
• the chamber 60 is sealed off from the bearings 102 by seals 105.
• the cooling fluid the course of which is symbolized by arrows, can be fed in via an inlet arranged on the lever arm piece 103 (not visible here) and guided to the static axis 58 via lever arm bores 62.
• the cooling fluid leaves the lever element 57 via an outlet 61 on the lever arm piece 104.
• a front part 107 of the lever element 57 can, due to a division 106 together with the pressure roller 48
• 17 shows a parallel arrangement of a plurality of storage units 3 held on a holding frame 64, each with a pressure roller 48 in one
• FIG. 17 Such an arrangement can be provided in an application station.
• the depositing unit 3 is on one
• Movable rail 65 arranged which is a motor-driven or manual
• storage unit 3 could be a pivoting movement about a pivot axis arranged on the holding frame 64 and not shown here
• Application station 67 a single storage unit can be provided, which deposits a very wide band, as symbolized by the band piece 79.
• Band piece 80 is narrow and stands for tapes to be deposited in application station 70 for pattern 76. Tapes according to band pattern 81 could be deposited in application station 72.
• Triangular band structures as shown by band pattern 82 can also be used, e.g. in application station 69 for the laying pattern 75.
• Triangular or otherwise shaped band patterns 82 can in principle be supplied as continuous material, e.g. on a carrier material. However, all of the belt patterns can also be fed to the depositing units as cut strips. via a magazine 83 which receives the cut pieces of tape (present there in the stack 84) from a supply reel 4 and, if appropriate, via a not shown here
• FIG. 20 shows the method shown in FIG. 19 with a view of the associated production device.
• the base units 5 pass through the application stations 67 to 72 with the associated conveyor subunits and
• Alignment units 91 to 95 The in the respective position of the belts on the
• Storage locations 30 laid down patterns essentially correspond to the
• 21 and 22 finally show a basic base unit 96 with a band 6 placed thereon and a holding element 97 for the basic base unit.
• Base unit 95 and band 6 together form a base unit 5 in the sense of the invention.
• the base base unit 96 has latching means 98, here in the form of spikes for example, which engage in bores 99 of the holding element 97.
• Adjacent bores 99 of which only two are clearly shown in FIG but distribute evenly in a circle, form an angle a with the center of the holding element 97, by which the basic base unit 96 can snap into the holding element 97 in an offset manner.
• the holding element 97 has a central bore 100 through which the alignment means (not shown here) of an alignment unit can access the base base unit 96 in order to be able to carry out an alignment change.
• Discard pattern 98 snap-in means

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• 2018
  • 2018-06-26 DE DE102018115392.9A patent/DE102018115392B4/de active Active
• 2019
  • 2019-06-25 KR KR1020217002637A patent/KR102789581B1/ko active Active
  • 2019-06-25 ES ES19752080T patent/ES2961918T3/es active Active
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  • 2019-06-25 WO PCT/DE2019/100586 patent/WO2020001702A1/de not_active Ceased
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  • 2019-06-25 US US17/255,340 patent/US11731377B2/en active Active
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