WO2011113558A2 - Procédé, installation et mat imprégné de résine pour la fabrication de pièces moulées renforcées de fibres dans une presse à mouler - Google Patents

Procédé, installation et mat imprégné de résine pour la fabrication de pièces moulées renforcées de fibres dans une presse à mouler Download PDF

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Publication number
WO2011113558A2
WO2011113558A2 PCT/EP2011/001233 EP2011001233W WO2011113558A2 WO 2011113558 A2 WO2011113558 A2 WO 2011113558A2 EP 2011001233 W EP2011001233 W EP 2011001233W WO 2011113558 A2 WO2011113558 A2 WO 2011113558A2
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WO
WIPO (PCT)
Prior art keywords
resin
mat
fiber
endless
width
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2011/001233
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German (de)
English (en)
Other versions
WO2011113558A3 (fr
Inventor
Matthias Graf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dieffenbacher GmbH and Co KG
Original Assignee
Dieffenbacher GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dieffenbacher GmbH and Co KG filed Critical Dieffenbacher GmbH and Co KG
Publication of WO2011113558A2 publication Critical patent/WO2011113558A2/fr
Publication of WO2011113558A3 publication Critical patent/WO2011113558A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [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
    • B29C70/06—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
    • B29C70/18—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length in the form of a mat, e.g. sheet moulding compound [SMC]
    • 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
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • B29C70/461—Rigid movable compressing mould parts acting independently from opening or closing action of the main mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
    • B29B15/10—Coating or impregnating independently of the moulding or shaping step
    • B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
    • B29B15/122—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex
    • 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
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs

Definitions

  • the invention relates to a method for the production of fiber reinforced molded parts (SMC) in a molding press according to the preamble of
  • Claim 1 and further a plant for producing fiber-reinforced molded parts (SMC) according to the preamble of claim 14. Further, the invention relates to a resin mat for use in a
  • thermoset fiber composite plastics Because of their good mechanical properties and the favorable price, such molded parts produced by the SMC process are the most widely used thermoset fiber composite plastics.
  • the raw material consisting of a resin composition (resin formulation) with embedded cut glass fibers produced.
  • This resin batch is deposited on thin transparent plastic films (carrier films) and subjected to a ripening process.
  • the current ripening process is 4-5 days and serves to thicken the resin batch with the blended fillers and / or the improved impregnation of the glass fibers.
  • the resin formulation consists of resins, thermoplastic solutions, fillers, flow improvers, integrated release agents, inhibitors and hardeners.
  • the fibers are mixed / soaked with the resin approach and then wound as a resin mat on a roll or as a flat
  • This known SMC method has now been supplemented by an optimized method.
  • This D-SMC process requires no maturation time or maturation time is shortened by adjusting the resin used or by the additives such that produced after discharge from a flat web plant as a manufacturing device for the SMC semi-finished directly in a molding press the SMC end product can be. It eliminates a lengthy or multi-day waiting period of maturation.
  • EP 1 386 721 A1 has disclosed a method and a system which was based on the object of the resin mats (SMC semifinished product) with the appropriate plasticity for immediate direct processing into shaped parts provide. Particular preference should be given to dispense with films and the control of the ripening time or thickening time of the resin mats was essentially carried out the heat input in a temperature-controlled thickening flow memory. Meanwhile this is continuous
  • just-in-time delivery can be avoided.
  • EP 1 386 721 A1 discloses a system which is as compact as possible, in which the temperature-controllable strip carriers have been arranged in a meandering manner in a housing in a thickening pass-through memory for a time-defined ripening process, depending on the required length.
  • the strip carrier and their execution in length and number one above the other the ripening process can be designed with appropriate maturation.
  • this system has proven itself, but has lack of flexibility in highly industrial operation.
  • adapted SMC mats or S MC mat mats have to be introduced into a molding press.
  • this is a resin mat cut or parts and / or more uniform Resin mat creates a scrim with a pattern that is manually or automatically assembled by means of industrial robots and inserted in its entirety in the tool.
  • Such mat coverings must always be designed for the individual case and the robot or system control must be taught in each time the tool is changed. This costs programming time and also significantly increases the maintenance effort.
  • Resin mats cut to cut mats and in a D-SMC process directly production and compression just in time
  • the object of the invention is to provide a plant and a method for operating a plant for the production of fiber-reinforced resin mats for the direct production of SMC moldings, which significantly has greater scope and a simplified system technology with regard to the possible production amount per unit time and / or production types based on the necessary needs compared to the prior art.
  • the task is to be solved that resin mats for SMC production Just in time to be produced and pressed directly, with production losses due to maintenance, set-up or
  • Extra effort can be compressed directly and / or the formation of a Gelege of cut mats significantly simplified or the number of necessary blankets a Geleges is reduced.
  • the solution of the problem for the method is that by means of at least one transfer device at least two molding presses are produced with produced in a flat belt system and divided into finite blanking mats endless resin mat.
  • the solution of the problem is for a system in that at least two compression molding presses are arranged in the system for pressing the produced in the flat belt system and divided into finite blanking mats endless resin mat.
  • the solution for a resin mat is that in one
  • Ribbon plant produced resin mat in height and / or across its width a differentiated contour and / or at least one reinforcing means consisting of means for reinforcing based on one of the two molding presses.
  • the resin mat in at least one contour and / or at least one
  • Reinforcement is adapted to a tool or at least to a part of a tool in a molding press.
  • a flat rail system serves several molding presses.
  • the molding presses can be different
  • a press with a three-minute pressing time in a press to be fed in parallel with a six-minute pressing time can be charged twice with the resin-mat contours assigned to it before a resin-mat contour or a cutting mat for the second press is produced.
  • inventive system or with the method of the tool in one or more molding presses adapted to produce resin mats for direct use
  • the reinforcing regions are developed or selectively stored so that they are arranged in a Kontormattenabschitt and later in the corresponding blanking mat exactly matching the corresponding tool in a molding press or the molded part to be produced. So it can
  • topographic patterns are formed on a Harzansatz, for example by means of a film applicator for the resin formulation or by means of suitable devices form the already finished reinforcement areas in advance and place them according to the specifications on the resin formulation layer by means of suitable devices. It can here other fibers, longer fibers, woven fiber inserts, directed
  • Fiber agglomerations or the like can be used.
  • the invention Under a resin mat with a variable contour, the invention relates to a resin mat which has at least one differentiable difference in its width b and / or height h after being cut into a blank mat of a predetermined length the supply of one or more molding presses or their tools is adjusted.
  • the fibers the invention understands the changed amount entry such that in the resin mat respectively in a blanket mat over the length and / or the width of a different amount of fibers is present. This is due to a change in the spread rate across the width of a continuously continuous (conveyor) belt below.
  • the scattering of the fibers is also adjusted across the width of the set width of the Harzansatzaustrages so as not to unnecessarily contaminate the conveyor belts and / or to minimize material losses.
  • Resin mat production and at least one, preferably several
  • Forming press is arranged with interposed between these two main elements transfer device.
  • the individual plant components are interconnected and controlled such that production interruptions or maintenance work in the molding presses can be automatically controlled so that the
  • Moldings provide, depending on the need.
  • the essence of the molding press or their tools is that for all prescribed pressures a minimum cleaning of the tool is provided. There are also maintenance intervals, which also occur at regular intervals, but only take a few minutes.
  • Control device controls the resin mat production in the
  • Resin mats can be passed through the press controls always the necessary number of contour-matched resin mats. simultaneously
  • the production plant can react optimally to production changes / changes and not only has to be satisfied with the variation of the belt speed and the discharge volume with uniform resin mats.
  • at least one additional parameter in particular the heat input into the resin mat during maturing, can be changed.
  • a microwave arrangement is used, the heat input, regardless of the stored respectively leading bands of the
  • Flat railway system can bring in the resin mat.
  • Heat transfer through is well within the feasible and usual, but high-quality tapes for transporting the resin mats, especially when no films are used, but usually have good insulating properties.
  • the heating preferably an HF or a microwave heating, connected by means of a time and / or path control with the resin mat production device (flat web), so that the heat input exactly on the different volumes (different heights and widths) of a resin mat section can react. Partial overheating or insufficient heat input should be avoided as far as possible.
  • a part of the thickening section is rigid and a second part of the thickening section is variable in length, so that, in particular in large installations, preferably the thickening section physically consists of two devices, a rigid and / or a thickening section that can be changed in length respectively thickening device.
  • the transfer device comprises the region from the exit point of the resin mat from the region of
  • this exit point is identical to the end of the main ripening time of the resin mat. It lies in the nature of the resin mats but that time depends on many factors. There is more of a main maturity window here, defined by the times “earliest possible processing” and “latest processing”. The outside of the
  • a transfer device preferably consists of a cutting device, a possibly necessary device for the withdrawal of the optional films from the resin mats, an optional device for
  • Resin mats an optional device for transporting the resin mats / shims to one or more compression molding presses and a corresponding one
  • Transfer device for transferring the resin mats / scrims in a molding press.
  • said fibers are preferably cut glass of rovings and / or long fibers or short fibers to improve the rigidity of the SMC molding, with the correct plasticity in an SMC direct process the further processing are fed to fiber-reinforced thermoset molded parts, that is, the SMC direct method of the invention is capable of highest
  • thermoset materials to the fabricator To make available, which are also tailored to the contour of the tool of a molding press.
  • the resin mats are produced with partially diverging volumes of resin batch and / or fibers, wherein different during production in the mixing device
  • Production volumes per unit time can be adjusted by means of a control device.
  • the discharge height and / or the discharge width of the resin batch and / or the discharge amount of the fibers can be changed.
  • the endless resin mat is subdivided into contour rat sections which essentially correspond in length to the feed mats. This will be the change in the
  • Adjustment devices to give opportunity to adjust the modified width or height of the resin batch It is also conceivable that the contour is not uniformly changed across the width, but that also differentiated contours across the width in the creation within a resin approach are possible.
  • the squeegee is divided across the width and differentiated adjusted in their height adjustment, for example, by a main squeegee for a basic Harzansatz Anlagen cramp and associated squeegee shifters, preferably several arranged across the width, which selectively retain or release the resin approach.
  • variable contour is adjusted in height h and / or width b and / or the amount of fibers of the resin mat, according to the requirements of the moldings to be produced in the molding press. It is particularly advantageous if the resin mat between the Walk and impregnation device and the
  • Blanking device is heated by means of at least one heating device.
  • the heat energy to be introduced into the resin mat should by the
  • Heating device can be adapted to the different contours of the resin mat. As a heating device offers a microwave or
  • Control device at least one adjusting device for adjusting the width b by at least one movable side wall of a doctor blade and / or the control device at least one adjusting device for adjusting the height h by at least one movable doctor blade and / or the
  • Control device to drive the Faserzu GmbHvortechnische for adjusting the amount of fibers can several
  • the chopped glass / fibers should always be covered on both sides with resin filler mixture, since otherwise partially dry fibers would adhere to the resin mat in the production process.
  • a multilayer structure of the resin base layers should be used.
  • the lower resin layer is covered with fibers in the same contour and with a cover layer of resin approach (layer) with the same contour.
  • Resin layers would be generated congruent and correspondingly timed over the two doctor blades.
  • An additional intermediate layer with a different (differentiated) layer can also be moved via a cutter movable in the directions b / s (x / y) and a b / s (x / y)
  • Resin discharge head for example, with a slot nozzle
  • the resin of the second contour should first be applied to the fiber layer of the first contour. Thereafter, the order of the fibers on the second contour and finally on the upper film, the resin layer of the first contour. In general, where can be less
  • Resin Filler are aufgerakelt, also proportionally less chopped fibers are applied in order to maintain the same mixing ratio or even deliberately deviate therefrom.
  • Hollow glass spheres for reducing the weight of the component can either be incorporated in the HFG in the extruder or else be sprinkled onto the resin or into the fiber layer.
  • the individual contour sections can also be at least once in the direction of production be split longitudinally (for example, with a central section).
  • Longitudinal section can also follow a contour, whereby the outer contours on the left and right do not necessarily have to be identical.
  • the outer contours on the left and right do not necessarily have to be identical.
  • the right contour (the long side) does not have to be identical to the left contour (long side).
  • a conceivable application device for a doctor blade to be applied to a reinforcing zone or a gain range, which is not limited to discontinuous and limited gain ranges, but also continuous linear reinforcing regions includes, a discharge nozzle in slit or round shape with a corresponding associated feed pump would be conceivable.
  • An extruder with discharge nozzle, an applicator roll, if necessary with a paring knife or similar devices would be possible.
  • the fiber entry could in addition to the short or long fibers mentioned also an endless fiber or a
  • Sliver, fiber fabric pieces, nonwoven fabrics or fiber fabrics may be used, which may be structured one or more layers.
  • the strength-promoting deposits are preimpregnated, thus, for example, already have a continuous as possible in fibers
  • Fiber ribbons (fiber tapes), fiber cloth pieces, fiber sheets, nonwoven fabric or the like are usable.
  • the transfer for cut fibers to a resin formulation layer would preferably be a cutting head with a point or line shape
  • Discharge device which can apply local reinforcements to any point of the SMC mat through an x / y linear drive and so the
  • Reinforcement areas created For unimpregnated material to create a reinforcement area, it may be sufficient to have a second one
  • Reinforcement areas made of continuous fibers can be driven by a
  • Roll pair be unwound specifically. Also, such a pair of rollers can be moved in the x / y direction, preferably with a suitable linear drive, wherein preferably the continuous fibers are fed into tubes.
  • Endless fibers can also be oriented transversely to the production direction or at an angle thereto.
  • the applicator can also have a cutting device (cutting shear) for targeted cutting.
  • Slivers also called fiber tapes
  • fiber tapes can be impregnated or
  • Applicator which is similar to that of the continuous fibers. Under certain circumstances, a longitudinal cutting device of two axially parallel to each other arranged cutting rollers is provided to reduce the width of the sliver. Fiber fabrics, fiber fabrics or nonwovens are usually punched or cut out of roll goods. Then you can by means of an industrial robot or on a conveyor belt accordingly
  • the depositing takes place via a gripper of the industrial robot, suitable transfer systems (gripper with x / y linear drive) or corresponding roller conveyor systems.
  • the blank mats are pressed in the further course of the process directly to moldings or it will be composed of several blankets scrims, which are finally pressed.
  • the blanking mats are smaller than the tool geometry, so that a flow process is created during extrusion.
  • the blankets are therefore
  • Resin mat can be introduced.
  • the means for reinforcement are locally limited to the resin formulation, which means that the means for
  • Figure 1 shows an exemplary system for the continuous production of
  • Figure 2 is a plan view of the lower blade section and the lower
  • Figure 3 is a side view of the mixing device of Figure 1 with a
  • Figure 4 is a schematic side view of a resin mat contour as
  • Figure 5 is a schematic plan view of a nest of several
  • Figure 6 is a schematic representation of a control and / or
  • Figure 8 shows an extension of a possible investment by a
  • Figure 9 is a representation of possible adjusting devices and possibly associated
  • Resin mat according to Figure 7 and FIG. 10 shows a collection of exemplary application devices or reinforcing means to be applied for introducing reinforcing regions into a resin mat to be produced.
  • FIG. 1 shows a system which can also be operated suitably but independently for carrying out the method, in a side view. It consists for producing fiber-reinforced molded parts (SMC) by means of extrusion in their distinctive parts of a mixing device 1 with a
  • FIG. 1 shows a system in which in the mixing device 1, the Walk and impregnation device 14 and in the thickened flow memory 25 as
  • an applicator 38 is arranged arbitrarily.
  • the application device 38 preferably has at least one cross-beam 37 on which the application device 38 can be moved by means of suitable linear conveyors in and across the production direction or for height adjustment. It would also be conceivable instead of the application device 38 an industrial robot (not shown) with the targeted and possibly
  • Empower reinforcement areas 38 Empower reinforcement areas 38.
  • the resin coating layer 8 is doctored onto the upper belt 3 by means of the squeegee 7.
  • the resin mat 10 in the Walk and impregnated section B Walk and impregnating device 14 formed, wherein the fibers 6 impregnated with the resin approach 9 and
  • the endless resin mat 10 thus formed is then passed to the tire through a thickening device 25.
  • a heating device 24 may be arranged, preferably a microwave device.
  • the resin mat 10 When the resin mat 10 has matured, it is detached from the strips 2 and 3 by male connectors (not shown) and the blanking device 17, preferably a transfer device 19 belonging, supplied.
  • the resin mat 10 In the cutting device 17, the resin mat 10 is cut as required in length and / or width, and by means arranged in the transfer device 19 transfer means, here a
  • Conveyor belt fed as a blanking mat 18 of the molding press 20 and pressed in the molding press 20 to the molding 21 and cured.
  • Figure 2 illustrates a plan view of the lower blade section and the lower belt 2 with representation of a possible contour 34 on the longitudinal side 27 of the resin mat 10 in the width b.
  • the width b of the discharge of the doctor blade 4 by means of the lateral movable side walls 29 are set.
  • the upper squeegee 7 was omitted in the presentation in order to keep the drawing as simple and clear as possible.
  • the width b of the resin mat 10 by the doctor blades 4 and 7 to the Long sides 27 changed (contour 34 would be linear), but there is a change in the volume over the width b, ie transversely to the production direction.
  • the change leads to a differentiated contour 40 of the height h over the width b of the resin mat 10 between the bands 2 and 3, cf.
  • Resin formulation layer 5 has been overlapped with another contour (in this case with a linear longitudinal side 27) of the resin formulation layer 8 '. This results in lower volumes or densities in the peripheral areas on the
  • the width of the fiber entry is adjusted and / or the width adjustment reversed in relation to the doctor blades shown so adjusted so that the fibers always fall or be deposited on a Harzansatz für.
  • the width adjustment is also understood in the sense of a volume change, so that the term contour can also refer essentially to the thickness, the density or volume change over the width and length of the resin mat 10, respectively the blank mat 18.
  • the side walls 29 it is of course conceivable that only one longitudinal side 27 of the resin mat 10 or alternately the longitudinal sides are changed by the side walls 29.
  • a buffer system can be provided that compensates for the stop in the Harzansatzaufbringumble A and it allows the Walk and Drinking section B and / or the Eindickumble C continue to run continuously to let.
  • the fiber feeder 28 is preferably as
  • Cut glass feed or as a cutting unit for continuous fibers also over the width sections and / or in relation to the Austragsmenge adjustable and variable.
  • a person skilled in the art clearly recognizes the advantages of this embodiment and can now refer to thin regions (see example of contour 40) 1, right) of the resin mat 10 fewer fibers 6 are sprinkled in order to avoid a "shine through" of the fibers 6 on the surface of a workpiece or molding 21. It should also be possible given
  • Fibers are fillers or reinforcing agents such as rovings, short cut or long fibers, which are known and widely used in industrial applications and are suitable for fiber-reinforced material applications.
  • hollow glass spheres Next there are hollow glass spheres,
  • FIG. 3 further shows a side view of the mixing device 1 according to FIG. 1 with a representation of a possible repeating resin mat contour at the height h of a resin mat 10.
  • the upper band 3 is visible in parts.
  • the schematic coordinate system sets in its longitudinal extent of the x-axis as in the previous figure, the process over the time t or the path s of the resin approach 5, 8 respectively Resin mat 10.
  • the exemplary contour mat 32 shows in the contour 33 a recurring pattern of elevations, which may optionally correspond to a width adjustment of Figure 2. These elevations in the contour mat 32 are matched to the contours of a tool 35 in a molding press 20.
  • the actuators 31 thereby move the doctor blade 4 in the height h and generate the contour 33 of the resin mat 10.
  • the height adjustment of the doctor can possibly also be sectionally adjustable over the width b, so that there are longitudinal strips of different height across the width, which in turn can have different heights h based on a contour mat 32 or on the entire resin mat 10.
  • contours 33 and 34 are adjustable in every possible conceivable variability and in particular adjustable to the tools 35 in one or even several compression molding presses 20.
  • a direct loading of complex tools 35 in molding presses 20 is made possible and / or the creation of mats from blanking mats 18 for molding presses 20 can be significantly simplified, because key points for flow molding in the tool 35 have already been optimized in width, height and / or. or can be adjusted in terms of fiber content in the resin mats 10 and not need to be improved by cutting or additional cutting parts.
  • multi-layer SMC semi-finished products can also be used with more are prepared as two resin attachment layers.
  • FIG. 4 shows a schematic side view of a blank mat 18, corresponding to a Konturmattenabiteses 32 of Figure 3, which is introduced by the transfer device 19 in a tool 35 of a molding press 20 (not shown in the figure).
  • the blanking mat 18 can now with its set contour, in a simplified representation of the
  • corresponding tool 35 is tuned to be pressed into a molding 21.
  • Figure 5 shows a schematic plan view of a scrim 36 of a plurality of blank mats 18, based on the Konturmattenabitesen 32, 32 ', 32 "different contours for pressing and accordingly folded together inserted by means of the transfer device 19 in a tool 35 of a molding press 20 and pressed there It is not necessarily provided that the contour rat sections 32, 32 ', 32 "in the same
  • FIG. 6 in a highly macroscopic and schematic representation, a control and / or regulating device with a minimum requirement is shown
  • At least one control device 26 is operatively connected to at least one of the following system parts in terms of control and / or control technology:
  • Impregnating device 15 a thickening device 25 as a production device for creating an endless resin mats 10, which is cut to length by means of a cutting device 17 to the blank mat 18.
  • Control devices preferably from a programmable
  • Universal computer consists of special interfaces with the individual system parts by suitable control technology and sensor for feedback of actual and comparison with setpoints, the tasks of control and regulation alternately or simultaneously must perform, in particular depending on which part of the control or
  • Control circuit is connected. To illustrate a control variable, for setting the Eindickumble C, this is only with a simple arrow with the Thickening device 25 is connected, which does not exclude that feedback on the state and corresponding regulations for the exact adjustment of the thickening distance C are present or necessary to be considered via sensors.
  • the resin mats 10 which produced in the mixing device 1 and the Walk and impregnating device 14, preferably transferred without transition into the thickening device 25 to the variable Eindickorder C, matured there and then after the cut to the transfer device 19 for transporting the created blanking mats 18 in the corresponding
  • Forming press 20, 20 ', 20 "... is handed over.
  • Figure 7 shows an exemplary representation of a differentiated contour 40 with different heights h over the width b of a resin mat 10 in section.
  • These variants would also be adjustable, but require some extra effort with respect to an adjustable doctor blade 4, 7.
  • Figure 9 shows exemplary additional squeegee 13, which are arranged on the over the width of the basic height of the resin approach adjustable squeegee 4 and sections over the width of a discharge hold back or release. With this variant, it is possible, in particular, to generate traces of higher or lower material content on a resin layer.
  • Figure 8 shows an extension of a possible investment by a
  • Applicator for introducing reinforcing regions 39 onto one Resin attachment layer 5 of a resin mat to be produced, wherein the upper resin attachment layer 8 is not shown.
  • Applicator device 38 which is preferably arranged on at least one cross-member above the belt 2 and movable by means of at least one linear conveying direction in at least one direction, reinforcing regions 39 are formed in a resin mat 10 and thereby selectively stored so that they in a Konturmattenabêt 32 and later in the appropriate
  • Blanket mat 18 exactly to the corresponding tool 35 a
  • Forming press 20 are arranged. Another reinforcing section is thereby increased by a partial elevation across the width
  • Harzansatzaustrag formed from the doctor blade 4 and presents itself as a continuous reinforcing region.
  • a second applicator 38 is arranged stationary and can in some areas reinforcing areas, fiber and / or Harz Stirllstoffmaterial carry.
  • Applicators 38 for applying reinforcing means for introducing reinforcing areas into a resin mat to be produced are shown. In the direction of production is first on the left side adjustable over the width fiber feeder, which disables the two outer discharge due to a rather narrow width of the lower resin formulation layer 5 and only by means of the inner four Austrags Kunststoffe (hatched) from at least one endless fiber roll 46 unwinding Endlosmaschinen either directly or partially on the resin formulation layer hangs up. In the direction of production, there is a more sophisticated embodiment of an applicator 38 on two cross members with a
  • Linear conveying device 45 A reinforcing portion 39 formed of a nonwoven fabric 43 or an equivalent conglomerate is already on the resin batch and is supplied from an outside by an industrial robot 42 and a gripper disposed thereon, and according to FIGS
  • the non-woven fabric 43 may be punched or cut out of an endless roll, for example, and is preferably on one
  • the intermediate request device can also be arranged, for example, between an illustrated application device 38 for a reinforcement region 39, so that the application device 38, for example, create a complicated contour on an intermediate transfer device, preferably a transfer belt comprising an endless conveyor belt, which then opens by simply moving the transfer belt of the
  • Resin formulation layer is deposited.
  • Discharge device a sliver guide roller 48, which pulls a sliver 47 from a roll and a longitudinal cutting device 49 feeds.
  • Konturmattenabitese 32 can be easily cut after the mixing device 1 to the required blanking mats for one or more tools or scrim and significant outlines the necessary correspond.
  • Specificity or other suitable marking on at least one of the resin formulation layers, preferably in the outer region, are arranged to define over this the dividing line of two Konturmattenabête and to put the separation section through the blanking device 17 by means of a suitable recognition device exactly.
  • a suitable marking may be a bar code on a film or other suitable marking, for example a piece of film which is automatically removed again by the trimming device or a color marking on the surface of the resin batch. Color markings could be performed with fluosfugden means that are recognizable only under special lighting and preferably lose their fluorescence by an increase in temperature in the mold of the molding press. It would also be conceivable in the preparation of the resin formulation layers incorporate increases or decreases that can be identified by the recognition device and the
  • Harzansatz für Faculty 33 contour of the height h along
  • Cutting device 45 Linear conveying device (b / s)
  • Control device C thickening distance

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Reinforced Plastic Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

L'invention porte sur un procédé, une installation et un mat imprégné de résine pour la fabrication de pièces moulées renforcées de fibres (SMC) par formage par fluage dans une presse à mouler (20), sur une installation à bande plate correspondante (16) pour la fabrication continue d'un mat imprégné de résine renforcée de fibres (10) sans fin, et sur un dispositif de transfert (19) dans un procédé direct. Dans l'installation à bande plate (5), au moins une couche de dépôt de résine (5, 8) est réunie à des fibres (6) dans un dispositif de mélange (1), elle est mélangée dans un dispositif de foulage et d'imprégnation (14) situé en aval et finalement conditionnée dans un dispositif d'épaississement (25) pour donner un mat imprégné de résine sans fin (10), et le mat imprégné de résine sans fin (10) est découpé en pièces découpées de mat (18) puis envoyé directement ou sous la forme assemblée à d'autres pièces découpées de mat (18) en une structure (36), au moyen du dispositif de transfert (19) dans un outil (35) d'une presse à mouler (20) et comprimé dans la presse à mouler (20) pour former une pièce de forme renforcée de fibres. L'invention concernant le procédé consiste en ce qu'au moyen d'au moins un dispositif de transfert (19), au moins deux presses à mouler (20, 20') sont alimentées (1404) en le mat imprégné de résine sans fin (10) produit dans une installation à bande plate (16) et divisé en mats découpés (18) de longueur finie.
PCT/EP2011/001233 2010-03-13 2011-03-13 Procédé, installation et mat imprégné de résine pour la fabrication de pièces moulées renforcées de fibres dans une presse à mouler Ceased WO2011113558A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010002843.6 2010-03-13
DE102010002843A DE102010002843A1 (de) 2010-03-13 2010-03-13 Verfahren , Anlage und Harzmatte zur Herstellung von faserverstärkten Formteilen in einer Formpresse

Publications (2)

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WO2011113558A2 true WO2011113558A2 (fr) 2011-09-22
WO2011113558A3 WO2011113558A3 (fr) 2012-02-23

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WO (1) WO2011113558A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013104058A1 (fr) * 2012-01-13 2013-07-18 Magna International Inc. Procédé de moulage direct en ligne de composites pré-imprégnés
WO2014053536A1 (fr) 2012-10-02 2014-04-10 Geogrind Procédé de préparation d'une composition liante inorganique
CN116710265A (zh) * 2020-09-01 2023-09-05 东丽先进复合材料美国公司 复合材料产品、复合材料产品生产系统、复合材料产品生产工艺以及用于减少与复合材料板产品生产相关的voc排放的系统和方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH710405A1 (fr) * 2014-11-25 2016-05-31 Nationale Sa Procédé de fabrication de pièces en matière composite.
CN109435268A (zh) * 2018-10-24 2019-03-08 杭州幽若科技有限公司 一种全自动流水线smc井盖生产工艺
CN115135474B (zh) * 2020-03-19 2024-04-16 Dic株式会社 片状模塑料和成形品的制造方法
USD985350S1 (en) 2021-04-02 2023-05-09 Darex Llc Clamp for a sharpening device used to sharpen a cutting tool
CN113352527B (zh) * 2021-05-21 2023-04-28 红禾朗(惠州)电工有限公司 一种用于插座盒压制成型设备
USD1087714S1 (en) 2023-01-17 2025-08-12 Darex, Llc Knife sharpener
USD1054269S1 (en) 2023-01-17 2024-12-17 Darex, Llc Knife sharpener
CN119141917B (zh) * 2024-10-31 2025-04-15 江苏奇一科技有限公司 一种高集成模具的单向带生产线

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1386721A1 (fr) 2002-07-22 2004-02-04 Maschinenfabrik J. Dieffenbacher GmbH & Co. Procédé et dispositif de fabrication de pièces moulées renforcées de fibres

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3903343A (en) * 1972-06-20 1975-09-02 Rohm & Haas Method for reducing sink marks in molded glass fiber reinforced unsaturated polyester compositions, and molded articles thereby produced
FR2266595A1 (en) * 1974-04-05 1975-10-31 Peugeot & Renault Impregnated mat with oriented fibres - has various density reinforcing wicks inserted among fibres
DE2825270C2 (de) * 1978-06-08 1982-03-18 Maschinenfabrik J. Dieffenbacher Gmbh & Co, 7519 Eppingen Anlage zur Herstellung von Schichtstoffplatten
FR2639867B1 (fr) * 1988-12-06 1991-05-17 Behar Isaac Procede d'estampage d'un materiau composite thermoplastique
US5217656A (en) * 1990-07-12 1993-06-08 The C. A. Lawton Company Method for making structural reinforcement preforms including energetic basting of reinforcement members
DE102004004407A1 (de) * 2004-01-29 2005-08-18 Gunter Prediger Vorrichtung und Verfahren zur Herstellung von Harzbeschichtungen
DE102009046670A1 (de) * 2009-11-12 2011-05-19 Dieffenbacher Gmbh + Co. Kg Anlage zur Herstellung von faserverstärkten Formteilen und Verfahren zum Betreiben einer Anlage zur Herstellung von faserverstärkten Formteilen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1386721A1 (fr) 2002-07-22 2004-02-04 Maschinenfabrik J. Dieffenbacher GmbH & Co. Procédé et dispositif de fabrication de pièces moulées renforcées de fibres

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013104058A1 (fr) * 2012-01-13 2013-07-18 Magna International Inc. Procédé de moulage direct en ligne de composites pré-imprégnés
US9821497B2 (en) 2012-01-13 2017-11-21 Magna International Inc. Method for direct inline molding of pre-impregnated composites
WO2014053536A1 (fr) 2012-10-02 2014-04-10 Geogrind Procédé de préparation d'une composition liante inorganique
CN116710265A (zh) * 2020-09-01 2023-09-05 东丽先进复合材料美国公司 复合材料产品、复合材料产品生产系统、复合材料产品生产工艺以及用于减少与复合材料板产品生产相关的voc排放的系统和方法

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DE102010002843A1 (de) 2011-09-15

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