Fiber placement head and procedure to place fiber material (Machine-translation by Google Translate,

专利摘要:
The invention relates to a fiber laying head and to a method for placing quasi-continuous fiber material for the production of a fiber composite, with an electrostatic charge of the fiber material in the form of an electrostatic discharge being neutralized with the aid of an electrostatic discharge device. strip and a guide element and/or electrostatically loading the fiber material and a guide element with an electrostatic charging device, the electrostatic charge taking place with the same polarity. (Machine-translation by Google Translate, not legally binding)
公开号:ES2640142A2
申请号:ES201730638
申请日:2017-04-25
公开日:2017-10-31
发明作者:Yannis Grohmann；Pascal Riederer
申请人:Deutsches Zentrum fuer Luft und Raumfahrt eV；
IPC主号:

专利说明:

D E S C R I P C I Ó N

FIBER PLACEMENT HEAD AND PROCEDURE FOR PLACING FIBER MATERIAL
 5
The invention relates to a fiber placement head for placing almost continuous fiber material for the production of a fiber composite component. The invention also relates to a fiber placement installation with a robot and the fiber placement head according to the invention. The invention
it also refers to a process for placing almost continuous fiber material 10 for the production of a fiber composite component.

The main element of the fiber composite components is a fiber composite material, which has two essential elements: a fiber material and a matrix material. By hardening the matrix material, with which the fiber material is intermingled (also referred to as impregnation or infiltration), the corresponding component can be produced, the fiber material then becoming an integral element of the matrix material, mostly a plastic thermoplastic or thermostable.
 twenty
Since after hardening of the matrix material, the shape of the component can no longer be modified, the fiber material must be brought in the uncured state of the matrix material to the corresponding component form. For this, the fiber material is distributed as a rule on a tool with a surface of tool that molds, representing the surface of tool that molds at least partially a negative of the form of component to be produced later.

Depending on the size of the component and the complexity of the geometry of the component, the distribution of the fiber material over the component represents one of the stages of the process that requires the most time and is technically more demanding in the entire production process. Precisely the distribution of large component fibers is increasingly automated in this regard to optimize the process of fiber placement. From DE 10 2010 015 027 a fiber installation is known, for example, in which, around a tool, a rail system is arranged, on which robots are guided, which have 35
as a final effector a fiber placement head, with which almost continuous fiber material can be distributed automatically over the tool arranged in the center.

In the fiber placement heads, the almost continuous fiber material, which can be, for example, parallel fibers in bundles, which are mostly transported with the help of two rollers, which rotate in each case in the opposite direction and transport a fiber material guided between the two rollers in a direction of transport. In particular in the case of fiberglass material (for example parallel fibers in fiberglass bundles), a fragility of the individual fibers 10 is often present, so that small parts of the fiber of the strand protrude. If the thread is now passed through the two rollers that rotate in opposite directions, then it is not uncommon in practice for the protruding fiber parts to adhere to the rollers and therefore part of the fiber material is wound around one of the rollers Due to this curl, the entire placement process can no longer continue, which leads to an interruption of the placement process, to correct the curl. In this regard, correcting this winding is often very expensive, since the rollers are hardly accessible and are mostly arranged very compactly inside the fiber placement head. The consequence is then long periods of inactivity, which clearly reduces the profitability of automated fiber placement facilities of this type.

From DE 100 12 378 A1 a method is known for the adhesion of fiber reinforced thermoplastic strips to a tool platform, the tool platform being loaded with an electrical potential on one side and the fiber material with an electrical potential of opposite polarity on the other hand, whereby, due to the electrostatic gravitational action, the fiber material adheres in the first distribution to the tool. This is reasonable as long as the fiber material itself does not have sufficient tackiness and therefore does not adhere to the smooth tool surface by itself.

From DE 10 2012 017 593 A1, a distribution head and a distribution method for automatically distributing cuts of a flat material are provided, providing the flat fiber material, which must be
distributed for the production of a component composed of fibers on a tool, on a carrier material. With the aid of an electrostatic discharge apparatus, the fiber material and the carrier material are electrostatically discharged in the first place, thereby preparing for an electrostatic charging process that follows it. In this electrostatic charging process that follows it, the 5-fiber material and the carrier material are electrostatically charged with polarity opposite each other, whereby the fiber material and the carrier material attract each other. In this regard, it should be achieved in particular that it can also be transported and conducted from a slightly tacky material to a non-tacky one through a fiber placement head on a carrier material, without the fiber material 10 being detached from the carrier material.

The objective of the present invention is to indicate an improved fiber placement head and an improved method for placing fiber material, with which a particularly fragile fiber material can be distributed, such as a glass fiber material, without the fragile fiber parts that protrude around the guide or transport rollers are wound and consequently lead to the shutdown of the entire process.

The objective is achieved with a fiber placement head according to claim 20 1 as well as a method for placing fiber material according to claim 11 according to the invention.

According to claim 1, a fiber placement head is proposed to place almost continuous fiber material for the production of a component composed of 25 fibers, the fiber placement head being provided in a generic manner to process a fiber material as one of the elements of a fiber composite material. With the aid of a fiber placement head of this type, for example, fiber materials can be distributed on a tool that is molded or supplied to a tool that molds of this type, thereby giving the fiber material at least partially its shape of posterior component.

In this regard, an almost continuous fiber material is a fiber material as an element of a fiber composite material for the production of a fiber composite component, which is provided as a material by almost continuous meter.
mostly rolled in coils to the fiber placement head. In this regard, an important characteristic of an almost continuous fiber material of this type is the fact that the ratio of the length of the fiber material to the thickness or width of the fiber material is very large, starting in the case of an almost continuous fiber material at least a length of more than 1 m, preferably more than 10 m. In this respect, the width of the fiber material assumes, in the case of narrow strips, as a rule less than 10 cm, in the case of wider strips even 25 or 30 cm. In this regard, the almost continuous fiber material may have a strip or strand shape.
 10
Preferably, in the case of the almost continuous fiber material, these are parallel fibers in fiberglass bundles of several kilometers in length, which are wound in corresponding coils. In this regard, parallel fibers in fiberglass bundles can have a width of a few millimeters to 1-2 cm. In the industry they are generalized from parallel fibers in bundles 300 Tex 15 to parallel fibers in bundles 9600 Tex. In this respect, the parallel fibers in 300 Tex bundles have a width of for example only 1-2 mm and are mostly very flat (tape-shaped or strip-shaped). Contrary to this, parallel fibers in 9600 Tex bundles can have a width of up to 1-2 cm and extend flat. twenty

By "almost continuous" in the sense of the present invention is not understood in this respect a continuous material in the mathematical sense, but an almost continuous material, which can be transported and distributed continuously for a predetermined period of time, specifically until The fiber store is empty. In this regard, the term "almost continuous" refers to the totality of the fiber material itself, without it necessarily being understood that the fiber material has an almost continuous, unbroken thread or an almost continuous fiber.

The fiber placement head generically presents an apparatus for providing fiber material to provide the fiber material, which can be implemented, for example, by a fiber store integrated on one side or by a supply kinematics on the other hand, with which the fiber material is supplied to the fiber placement head from outside the fiber material. In the case of robot-based fiber placement facilities, where
apply the fiber placement head preferably, mostly a stationary fiber store is used, in which the almost continuous fiber material is stored. The fiber material is then conducted through a guiding apparatus from the fiber store to the fiber placement head as the final effector.
 5
The fiber placement head generically presents a compression apparatus for placing and compressing the fiber material in a tool, such a pressure apparatus can be for example a compression roller.

Moreover, the fiber placement head has an active or passive transport device 10 for the continuous transport of the fiber material provided by the fiber material forecasting device in a direction of transport to the compression apparatus, in order to thereby leading the fiber material towards the compression apparatus inside the fiber placement head. If it is a passive transport apparatus, the transport apparatus then has at least one guiding element, along which the fiber material is guided in contact with the continuous transport, to then move along a default transport path. In the case of an active transport apparatus, an advance element is also provided, for loading an advancing force on the fiber material for active transport in the direction of transport. In this way, the guiding element can then be, for example, a feed unit of this type, which can be implemented, for example, with the help of second rollers rotating in opposite directions, through which the fiber material is passed. In this respect, a feed unit is always also a guiding element.
 25
According to the invention, the fiber placement head or the transport apparatus has an electrostatic discharge apparatus and / or an electrostatic charging apparatus.

If an electrostatic discharge apparatus is provided, then it will be arranged and provided inside the fiber placement head or the transport apparatus so that an electrostatic charge of the fiber material can be neutralized before at least one of the guiding elements with respect to the direction of transport as well as an electrostatic charge of the at least one guiding element. Therefore, both an electrostatic charge of the fiber material and a charge 35 are simultaneously neutralized with the aid of the electrostatic discharge apparatus
Electrostatic of the guiding element, whereby an adhesion based on an electrostatic charge of the two elements can be avoided, whereby the winding of fragile fiber parts around the guiding elements configured as rollers can be prevented.
 5
In this regard, it was recognized that, during the transport process and the continued movement of the fiber material with the aid of an electrostatic discharge apparatus, both the fiber material and the guiding element can be electrostatically discharged at the same time to neutralize in this way an electrostatic charge, whereby the negative effect of the adhesion of the guided fiber material with contact along the guiding element can be avoided.

An electrostatic discharge apparatus of this type can be carried out, for example, by ionizing the surrounding air.
 fifteen
By "neutralization" within the meaning of the present invention, it is understood in this regard that the negative effects caused by electrostatic charge are reduced or made completely ineffective. By "neutralization" is understood in particular that the electrostatic charge is reduced or completely eliminated.
 twenty
Moreover, according to the invention, an electrostatic charging apparatus may be provided, which may be provided alternatively or additionally to the electrostatic discharge apparatus. If the electrostatic charging apparatus is additionally provided to the electrostatic discharge apparatus in the fiber placement head, the electrostatic charging apparatus then refers to another guiding element 25 such as that which acts in conjunction with the electrostatic discharge apparatus.

In this regard, the electrostatic charging apparatus is configured at the same time to electrostatically charge the strip-shaped fiber material before at least one guiding element as well as to electrostatically charge the at least 30 guiding element. , the electrostatic charge taking place such that the electrical polarity of the electrostatic charge of both the fiber material and the at least one guiding element is the same.

By means of the same electrical polarity it is possible that the fiber material and the
guiding element repel each other, and the negative effect caused by the fragility of the winding fibers can also be eliminated in this regard. In this regard, it was recognized that the repulsion caused by electrostatic charge of the same polarity of the fiber material with respect to the guiding element leads to fragile fiber parts protruding around a roller as a guiding element from being wound. However, the repellent forces are not in this respect such that the fiber material is no longer guided with contact along the guiding element, since the compressive force charged due to tensile stress on the guiding element always It is greater than the repellent forces that are based on electrostatic charge. 10

By the same electrical polarity of the electrostatic charge it is understood in this respect that the fiber material and the guiding element are charged together either electrically positively or electrically negative.
 fifteen
In this regard, it was recognized that the main problem represents the roller contact between guiding elements constructed as cylinders, which are mainly configured as a flexible rubber roller and a rigid complementary roller. The material is then transported by driving one of the two rollers, which reinforces the problem of electrostatic charge. twenty

The electrostatic charge problem is still reinforced because the actively driven feed rollers rotate mostly faster than the fiber material is transported, whereby friction arises between the feed roller and the fiber material, which favors an electrostatic charge. 25

Therefore, with the aid of the present invention it is possible to distribute, in addition to carbon fibers, also in part fragile glass fibers, without in this case the negative effects with respect to the fragility of the fibers negatively impacting the profitability of the installation. In particular, parallel fibers 30 in untreated fiberglass bundles can be distributed with the help of technology now also automated in the fiber placement process. In addition, fiber nests, fiber mats as well as fiber fabrics, in particular glass fiber nests, can also be distributed in an automated manner with the aid of the fiber placement head according to the invention.
fiberglass mats and fiberglass fabrics.

In one embodiment, the compression apparatus is formed by at least one guiding element of the transport apparatus, so that the electrostatic discharge apparatus or the electrostatic charging apparatus refers directly to the compression apparatus 5, for example a compression roller, and the corresponding continuously transported fiber material before it. If it is an electrostatic charging apparatus, then in this case an additional effect can be achieved, the tool being electrostatically charged, in particular the molding tool surface, with polarity opposite the fiber material and the compression apparatus, whereby an adhesion of the fiber materials to be distributed to the tool is improved.

Alternatively, it can also be conceived that the electrostatic discharge apparatus is configured to neutralize an electrostatic charge of the compression apparatus different from the at least one guiding element, so that, in addition to an electrostatic discharge of the fiber material and the element In addition, the compression apparatus is also electrostatically and independently discharged. In this sense, electrostatic charges can be eliminated from the compression roller, which may have a negative impact on the distribution process.

In this sense, it is advantageous that, in addition to the guiding element and the fiber material before the guiding element and in addition to the compression apparatus there is also a neutralization of an electrostatic charge of the fiber material before the compression apparatus, but after the guiding element, which is also electrostatically neutralized, so that the electrostatic discharge apparatus produces at least two locations inside the transport path a neutralization of the electrostatic charge of the fiber material and the guiding element / compression apparatus. In this sense, an electrostatic charge can also be eliminated, which is due to the friction that arises in the fiber placement head during the transport of the fiber material between the neutralized guiding element on one side and the compression apparatus on the other. side before the compression apparatus, to avoid mostly electrostatic charges in the entire transport process. 35

Preferably, the electrostatic discharge apparatus is configured in this respect so that each guiding element and the corresponding fiber material is electrostatically neutralized before the respective guiding element, including the compression apparatus and the fiber material before 5 same.

If an electrostatic charging apparatus is provided, then this may be configured so that the compression apparatus other than the at least one guiding element is electrostatically charged, the fiber material is also charged electrostatically at the same time. compression apparatus, but after at least one guiding element, the electrostatic charge of the strip-shaped fiber material and the compression apparatus having the same polarity. This embodiment then takes advantage of its decisive advantage when the molding surface of the tool, on which the strip-shaped fiber material 15 is distributed, is loaded with opposite polarity, whereby on the one hand the fiber material it is repelled by the compression apparatus and on the other hand it is attracted by the surface of the tool that it molds.

In a further advantageous embodiment, at least two guiding elements are provided, specifically a first guiding element and at least a second guiding element, the compression apparatus can also be one of the guiding elements. In this regard, the electrostatic discharge device is adjusted to the first guiding element to neutralize an electrostatic charge of the first guiding element and the fiber material before the first guiding element, whereby an electrostatic charge is neutralized in this regard. correspondingly in the subsequent process.

With respect to the second guiding element and the fiber zone before it, the electrostatic charging apparatus is oriented such that the second guiding element and the fiber material is electrostatically charged with the same polarity before of the second guiding element.

Then, it is conceivable, for example, that the first guiding element is provided with respect to the direction of transport before the second guiding element in the
transport path, preferably at the beginning of the transport path inside the fiber placement head, so that a corresponding electrostatic charge is neutralized first and consequently released in the subsequent process. In this regard, the second guiding element may be the compression apparatus, which is then correspondingly charged electrostatically together with the fiber material with the same polarity, the tool surface being charged with opposite polarity, whereby it can there is a repulsion of the fiber material with respect to the compression apparatus on the one hand and an adhesion of the fiber material to the surface of the tool on the other hand.
 10
In this sense, it is achieved that an electrostatic charge is neutralized in the entire transport apparatus, until the fiber material reaches the compression apparatus and there is correspondingly charged electrostatically.

Preferably, the compression apparatus is a compression roller or compression cylinder and is correspondingly rotatably mounted. In this regard, the guiding elements can also be configured as rollers or cylinders, preferably in the form of a pair of guiding rollers that are composed of at least two rollers or cylinders that rotate in opposite directions, between which it is then passed the fiber material. twenty

Between the compression apparatus and one of the guiding elements a cutting device is preferably arranged to separate the almost continuous fiber material, so that several strip-shaped bands can be distributed that are next to each other on the surface of useful. 25

Moreover, the invention also relates to a fiber placement installation for automatically placing almost continuous fiber material on a tool with an automated mobile device, for example a robot, in which, at one end of the chain The kinematics is arranged as an end effector a 30 fiber placement head of the type described above. The fiber placement head is provided with the aid of a guiding apparatus an almost continuous fiber material, which is made available in a fiber store, particularly during the movement of the robot.
 35
In this regard, the fiber placement installation may be configured so that, with the aid of the electrostatic charging apparatus, the molding surface of the tool is electrostatically charged, specifically with an electric polarity, which is inverse of the of the electrostatic charge inside the fiber placement head. 5

Moreover, the objective is also achieved with the process for placing almost continuous fiber material for the production of a fiber composite component on a tool according to claim 11, the almost continuous fiber material being guided, during placement in the tool with contact, along a guided element inside a transport apparatus. By means of an electrostatic discharge apparatus, an electrostatic charge of the fiber material is neutralized in this respect before the guiding element with respect to the transport apparatus on one side and an electrical charge of the guiding element itself on the other hand, to avoid that way an adhesion of the fiber material to the guiding element. fifteen

Alternatively or additionally, by means of an electrostatic charging apparatus, the fiber material is electrostatically charged before the guiding element with respect to the direction of transport and the guiding element itself, presenting the electrostatic charge of the fiber material and the guiding element the same electric polarity 20. In this sense, it is achieved that the two elements repel in opposite directions, whereby also adhesion of the fiber material to the guiding element is prevented.

The invention is explained by way of example by the attached figures. Show: 25

Figure 1 - a representation of a problematic location inside
   of a fiber placement head in the case of a fragile fiber material;
Figure 2 - a schematic representation of a cutout of a 30
   fiber placement head with a discharge device
   electrostatic;
Figure 3 - an example of embodiment of Figure 2 additionally with a
   electrostatic charging device.
 35
Figure 1 shows a problematic location inside a fiber placement head during the transport of a fiber material 1, which is guided with contact in the RF direction of transport along a guiding element 2, which is configured in the form of a roller or cylinder 3. Due to the longitudinal guidance with contact of the fiber material 1 to the roller 3, the fiber material is deflected and in that case it is transported by means of a drive (not shown) in the RF direction of transport, that is, it is requested with a corresponding transport force.

Due to the contact of the fiber material 1 with the roller 3, friction arises between the fiber material 1 and the roller 3, whereby both the fiber material and the roller 3 can be electrostatically charged. In this regard, produces a load separation, whereby the fiber material 1 experiences a polarity charge opposite to the charge of the roller 3. Due to this opposite polarity charge of the fiber material 1 (for example electrically positive) and of the roller 3 ( for example electrically negative) the effect is reached that the fiber material 1 15 is drawn towards the roller 3, that is to say a force is exerted by the fiber material 1 in the direction of the roller 3.

If it is, in the case of fiber material 1, for example a very fragile fiber material, which has small defective points, then this can lead to these fiber parts 1a protruding from the plane of fiber material 1 or that can move out of the plane. If such an area is guided with a fiber part 1a that protrudes along a roller 3 charged with electrostatically opposed polarity, then the electrostatic electrostatic attraction force may be greater than the appropriate force, which wants press, due to the tension of the material itself, the fiber part in the direction of the fiber material. This leads to the fiber part 1a being attracted to the roller 3 and during an additional transport it is wrapped around it, whereby parts of the almost continuous fiber material are wound in the roller 3. Then, the consequence It is the stop of the entire distribution process. 30

Figure 2 schematically shows a cut in a fiber placement head 10, to which an almost continuous fiber material 1 is supplied. In this regard, the fiber material 1 is guided with contact along a first guiding element 11, the first guiding element 11 being a pair of rollers formed by two
rollers, which rotates in the opposite direction and between which the fiber material 1 passes. In this regard, this first guiding element 11 can be actively actuated, whereby a transport of the fiber material in the RF direction of transport occurs. This is reasonable provided that, for example, as shown in Figure 2, in the direction of transport RF a cutting apparatus 13 5 is then provided, which is configured to separate the material 1 from fibers. After separating the fiber material 1, for example at the end of a distribution path, then it is possible to start again, with the aid of a previous transport unit formed by the guiding element 11, the transport of the fiber material 1.
 10
Moreover, as a second guide element 12, a compression roller 14 is provided, along which the fiber material 1 is also guided in contact. With the aid of the compression roller 14, the fiber material in a tool 15 is pressed in this respect, to distribute it there for the production of a preform.
 fifteen
According to the invention, the fiber placement head has, in the embodiment of Figure 2, an electrostatic discharge apparatus 20, with which an electrostatic charge of the fiber material 1 is neutralized before the first guiding element 11 and a charge electrostatic of the first guiding element 11 itself, to then prevent adhesion of the fiber material 1 to the rollers of the first guiding element 11. With the aid of electrostatic discharge of the fiber material on one side and the guiding element on the other hand, a charge separation based on a longitudinal guidance with contact of the fiber material 1 to the first guiding element 11 is prevented or reduced or at least, whereby an electrostatic charge is prevented, which leads to the fiber material, in particular individual protruding fiber parts, being drawn towards the rollers of the guiding element 11 and wrapped around them.

With reference to Figure 1, this means that the Felectrostatic force is smaller than the proper tensile force FAP or is completely eliminated, so that the 30 protruding fiber parts 1a cannot be wrapped around the roller.

In addition to the exemplary embodiment of Figure 2, it is conceivable that an additional electrostatic discharge apparatus 21 is provided, which neutralizes an electrostatic charge of the compression roller 14, so as to be able to avoid in this case also 35
problems conditioned by electrostatic charge during fiber distribution.

One of the critical process steps is provided as long as the cutting device 13 separates the fiber material before the compression roller, in this way for example separating the fiber placement head from the fiber material already distributed and allowing this way a new orientation of the fiber placement head in a new distribution position. The pair of rollers formed by the two rollers of the first guiding element 11 must then drive or transport the fiber material 1 against tensile tension again towards the compression roller 14, whereby the fiber material can be distributed again in the new positions. In this regard, a non-insignificant friction arises between the rollers of the first guiding element 11, which then leads to electrostatic charge.

Figure 3 shows an extraordinary form of the embodiment of Figure 2, 15 in which no additional electrostatic discharge apparatus 21 is provided, but an electrostatic charging device 22 is provided on the compression roller 14, with the that both the fiber material 1 on the one hand and the compression roller 14 on the other hand can be electrostatically charged with the same polarity. In the exemplary embodiment of Figure 3, both the 20 fiber material 1 and the compression roller 14 are charged electrically positively. This leads to the fiber material being repelled by the compression roller 14 itself, thereby preventing parts of fibers around the compression roller 14 from being wound.
 25
With reference to Figure 1, this specifically means that in addition to the proper tension force Ftrato acts a force in the same direction Electrostatic, so that the total force in the direction of the compression roller 14 is reinforced and the risk of rolled up
 30
Moreover, in the exemplary embodiment of Figure 3, an electrostatic charging apparatus 23 is provided, which is arranged inside or in the tool 15 and is installed to electrostatically charge the tool 15 or its surface 16 useful molding. In this regard, the electrostatic charge of the molding surface takes place with polarity opposite to the electrostatic charge of the fiber material and the roller 14 of 35
compression by electrostatic charging device 22, so that in addition to a repulsion of the fiber material by the compression roller 14 there is also an attraction or adhesion of the fiber material 1 to the tool surface 16 that molds of the tool 15 of molding In the exemplary embodiment of Figure 1, the fiber material and the compression roller 14 are electrically positively charged 5 with the help of the charging device 22, while the tool or the tool surface is electrostatically charged electrically negative by means of electrostatic charging device 23.

Reference Numbers 10

1 - fiber material
1st - fiber part
2 - guiding element
3 - roller 15
10 - fiber placement head
11 - first guiding element
12 - second guiding element
13 - cutting device
14 - compression roller 20
15 - useful
16 - molding tool surface
20 - electrostatic discharge apparatus
21 - second electrostatic discharge apparatus
22 - electrostatic charging device 25
23 - second electrostatic charging device



 30

权利要求:
Claims (11)
[1]

1. Fiber placement head (10) to place almost continuous fiber material (1) for the production of a fiber composite component with
 5
 a fiber material forecasting apparatus for providing the almost continuous fiber material (1),
 a compression apparatus for placing and compressing the fiber material (1) almost continuously in a tool, and
 a transport apparatus for transporting the fiber material (1) 10 provided by the fiber material forecasting apparatus in a direction of transport towards the compression apparatus, the transport apparatus presenting at least one guiding element (2) , along which the almost continuous fiber material (1) is guided in contact, 15
 characterized in that the fiber placement head (10) has:
 at least one electrostatic discharge apparatus (20), which is configured to neutralize an electrostatic charge of the fiber material (1) before at least one guiding element with respect to the direction of transport and to neutralize an electrostatic charge of the minus a guiding element (2), and / or
 an electrostatic charging apparatus (22), which is configured to electrostatically charge the fiber material (1) before at least 25 guiding element (2) with respect to the direction of transport and to electrostatically charge the at least one guiding element (2), the electrostatic charge of the fiber material (1) and the at least one guiding element (2) having the same electrical polarity.
  30
[2]
2. Fiber placement head (10) according to claim 1, characterized in that the compression apparatus is formed by at least one guiding element (2) of the transport apparatus.

[3]
3. Fiber placement head (10) according to claim 1, characterized in
because the electrostatic discharge apparatus (20) is configured to neutralize an electrostatic charge of the compression apparatus other than at least one guiding element (2).

[4]
4. Fiber placement head (10) according to claim 3, characterized in that the electrostatic discharge apparatus (20) is configured to neutralize an electrostatic charge of the fiber material (1) in a section before the compression apparatus with respect to to the direction of transport, but after at least one guiding element (2).
 10
[5]
5. Fiber placement head (10) according to claim 1, characterized in that the electrostatic charging apparatus (22) is configured to electrostatically charge the compression apparatus other than at least one guiding element (2) and the material (1) of fibers in a section before the compression apparatus with respect to the direction of transport, but after at least 15 a guiding element (2), presenting the electrostatic charge of the fiber material (1) and the compression apparatus The same electrical polarity.

[6]
6. Fiber placement head (10) according to claim 1, characterized in that the transport apparatus has a first guiding element (11) and at least a second guiding element (12),
 the electrostatic discharge device (20) being configured to neutralize an electrostatic charge of the first guiding element (11) and the fiber material (1) before the first guiding element (11) with respect to the direction of transport, and
 the electrostatic charging device (22) being configured to electrostatically charge the second guiding element (12) and the fiber material (1) before the second guiding element (12) with respect to the direction of transport therewith electrical polarity 30

[7]
7. Fiber placement head (10) according to one of the preceding claims, characterized in that the compression apparatus is a compression roller (14), one or more guiding elements (2) are in each case a guiding roller and / or one or more guiding elements (2) are in each case a pair of rollers of 35
guided.

[8]
A fiber placement head (10) according to one of the preceding claims, characterized in that a cutting device (13) for separating the fiber material (1) is arranged between the compression apparatus and a guiding element (2). 5 almost continuous.

[9]
9. Installation of fiber placement to automatically place almost continuous fiber material (1) in a tool (15) with an automated mobile device, in which, at one end of the kinematic chain, a final effector is provided as a 10 fiber placement head (10) according to one of the preceding claims, a fiber material store for providing the almost continuous fiber material (1) and a tool (15).

[10]
10. Installation of fiber placement according to claim 9, characterized in that the tool (15) has an electrostatic charging apparatus (22), which is configured for electrostatic charging of the molding tool surface.

[11]
11. Procedure for placing almost continuous fiber material (1) for the production of a fiber composite component in a tool (15), the almost continuous fiber material (1) being guided in contact therewith in a guiding element (2) in a direction of transport, characterized in that
 by means of an electrostatic discharge apparatus (20) an electrostatic charge of the fiber material (1) is neutralized before the guiding element (2) with respect to the direction of transport and an electrostatic charge of the guiding element (2) , I
 by means of an electrostatic charging apparatus (22) the fiber material (1) is electrostatically charged before the guiding element (2) with respect to the direction of transport and the guiding element (2), 30 presenting the electrostatic charge of the fiber material (1) and the guiding element (2) the same electrical polarity.

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ES2647166B1|2018-06-13|Procedure for vehicle body protection.

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JP4698370B2|2011-06-08|Method for peeling ductile strip from release sheet and apparatus used therefor

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KR102070334B1|2020-01-29|Fabric cord cutter of applying to the electric air vent cord

同族专利:

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公开号 | 公开日

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DE102016107920A1|2017-11-02|

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ES2640142R1|2018-03-07|

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FR3050681B1|2019-11-08|

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FR3050681A1|2017-11-03|

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DE102010015027B4|2010-04-13|2011-11-24|Deutsches Zentrum für Luft- und Raumfahrt e.V.|Fiber-laying device|

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DE102012203395A1|2012-03-05|2013-09-05|Voith Patent Gmbh|Cross filing of fibers|

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DE102012008938A1|2012-05-08|2013-11-14|Premium Aerotec Gmbh|Method and device for applying and fixing a film to a tool or component surface|

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DE102012017593B4|2012-09-06|2016-04-28|Premium Aerotec Gmbh|Laying head and depositing method for the automated depositing of blanks of a sheet material, in particular for the production of large-area fiber composite components|

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DE102014104416B4|2014-03-28|2015-11-26|Deutsches Zentrum für Luft- und Raumfahrt e.V.|Fiber laying head|

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WO2016096008A1|2014-12-18|2016-06-23|Deutsches Zentrum für Luft- und Raumfahrt e.V.|Semi-finished fiber product lay-up head|

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法律状态:
2018-12-14| FC2A| Grant refused|Effective date: 20181210 |

优先权:

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申请号 | 申请日 | 专利标题

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DE102016107920|2016-04-28|

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DE102016107920.0A|DE102016107920A1|2016-04-28|2016-04-28|Fiber laying head and method for laying fiber material|

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