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  • 专利说明
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  • 优先权
    • 专利摘要:
    Expandable spool for winding bands formed by at least two curved outer plates connected by one end to an axle and at the other end to an insert inserted in the axle. The insertion of the bead on the shaft displaces internal plates, fixed to the external ones and equipped with inclined planes that convert the longitudinal displacement of the bead into the radial displacement of the plates that move the curved plates away from the axis and therefore increase the diameter of the reel around which the coil of sheet material is wound. Similarly, when removing the bead, the sheets approach the axis, the diameter of the reel is reduced and this facilitates the removal of the web coil. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2723983A1
    申请号:ES201830190
    申请日:2018-02-28
    公开日:2019-09-04
    发明作者:Garcia Ivan Dominguez
    申请人:Airbus Operations SL；
    IPC主号:
    专利说明:

    [0001]
    [0002] DEVICE FOR WRAPPING UP AN AUXILIARY MATERIAL, COMPOSITE DEPOSITION SYSTEM AND SEPARATION, WINDING AND EXTRACTION METHOD OF AN AUXILIARY MATERIAL
    [0003]
    [0004] OBJECT OF THE INVENTION
    [0005]
    [0006] The present invention is directed to a device that allows collecting the auxiliary material used as a protective coating and which is originally adhered to a sheet of composite material wound in a coil. More particularly, the device facilitates the extraction of the auxiliary material wound on the device itself, once it has been collected after the deposition of the composite material.
    [0007]
    [0008] This invention is also directed to a system and method that allow the separation, storage by winding and extraction of the auxiliary material adhered to a composite material supplied in the form of a coil.
    [0009]
    [0010] BACKGROUND OF THE INVENTION
    [0011]
    [0012] Usually, the composite material, such as carbon fiber (CFRP) or glass (GFRP) for aeronautical use, is supplied in the form of a sheet or tape wound in a coil. In these composite materials, the fiber (carbon or glass) is already embedded in a matrix of generally thermosetting resin, such as epoxy.
    [0013]
    [0014] Generally, the composite sheet or tape is presented together with a protective coating or auxiliary material adhered to its surface, which prevents said composite material wound in the coil from sticking together. This auxiliary material is usually a polyethylene protective film. The auxiliary material must be removed before the composite material is deposited, to avoid exposing the auxiliary material to the healing treatment (high temperature and pressure) to which the composite material is subjected for consolidation.
    [0015]
    [0016] Due to the delicate conditions of conditioning and cleaning of the atmosphere in which the composite material is to be handled, the tools and machinery traditionally used to separate the protective film from the tape with composite material is complex and expensive in terms of energy consumption, maintenance and specialized labor.
    [0017]
    [0018] There are currently several solutions in the state of the art to carry out this process. The most widespread is to make the vacuum on the protective film through ducts that separate, extract and conduct the protective film as waste material to chambers or bags for later storage.
    [0019]
    [0020] This solution of the state of the art poses some problems, such as the need to frequently empty the chambers / bags of waste material, the high electrical consumption of the vacuum pumps and the auxiliary cooling systems, the high noise generated by said pumps of vacuum with the subsequent associated safety problems, numerous micro-stops in operation due to saturation of waste material in the extraction ducts, numerous interruptions in the production chain due to the need for multiple hours of cleaning and dedicated maintenance for care of all subsystems, among others.
    [0021]
    [0022] DESCRIPTION OF THE INVENTION
    [0023]
    [0024] The present invention proposes a solution to the above problems by means of a device configured to wind an auxiliary material according to claim 1, a composite deposition system according to claim 16 and a method of separating, winding and extracting an auxiliary material according to the Claim 20. Preferred embodiments of the invention are defined in the dependent claims.
    [0025]
    [0026] A first inventive aspect provides a device for winding an auxiliary material, wherein the device is characterized in that it comprises:
    [0027] • a support mechanism;
    [0028] • at least two slats, connected to the support mechanism and arranged so that they substantially form a tubular element, thus defining an internal section between them, wherein the at least two slats comprise a first end and a second end;
    [0029] • A bar; Y
    [0030] • one end piece;
    [0031] wherein the bar is rigidly joined by a first end to the support mechanism, it is arranged longitudinally along the inside of the internal section defined by the at least two slats, and is configured to connect at a second end with the end piece; Y
    [0032] wherein the end piece comprises a connection mechanism configured to engage in a detachable manner with the second end of the bar, so that in the coupled state of the end piece the internal section defined by the at least two slats is greater than in the decoupled state of the end piece.
    [0033]
    [0034] The at least two slats are arranged so that they substantially form a tubular element. Said tubular element is not necessarily continuous in section along its entire length, but the slats may be arranged with a space between adjacent slats. Optionally, the at least two slats can be arranged adjacent without leaving a space between adjacent slats, but allowing relative movement between slats.
    [0035]
    [0036] The auxiliary material that is intended to be wound in the device is originally adhered to a sheet or a tape of composite material. However, the device of the invention can also be used to wind other types of auxiliary material.
    [0037]
    [0038] The slats can be connected to the support mechanism directly or indirectly. Indirect connection is understood as the connection made through the intermediation of one or more elements.
    [0039]
    [0040] The slats are elongated and are arranged with their long dimension parallel to the bar.
    [0041]
    [0042] The device of the invention allows the auxiliary material to be rolled over the device and easily removed once it is wound.
    [0043]
    [0044] Advantageously, this device avoids the use of additional elements for the separation and storage of the auxiliary material ( eg vacuum pumps).
    [0045]
    [0046] By avoiding the additional elements, and because the device according to the invention only has mechanical elements, it is also achieved:
    [0047] - completely eliminate noise, power consumption and hours of maintenance of the ducts, compared to the use of vacuum pumps in the state of the art, and - a more continuous operation to avoid having to make micro-stops, before necessary to empty chambers of waste or saturation material of waste material in the extraction ducts.
    [0048]
    [0049] It should be noted that, unlike the conventional solution of vacuum pumps, where they exceeded 80 dB and made it mandatory to use PPE (personal protective equipment) that are annoying when working, the device of the The invention allows the auxiliary material to be collected with greater simplicity and ease of use.
    [0050]
    [0051] A fundamental aspect of the present invention is the ease in extracting the auxiliary material once a volume of auxiliary material has been wound in the device. While the auxiliary material is wound around the slats, there is a certain tension in the winding direction of the material, which puts pressure on the outer face of the slats and tries to contract the internal section between them. Once a desired volume of auxiliary material is wound in the device, decoupling the end piece decreases the internal section between the slats, at least in part of the device, causing the release of tensions in the rolled auxiliary material and facilitating removal of the auxiliary material of the device.
    [0052]
    [0053] As mentioned, when the internal section between the slats is reduced, the removal or extraction of said auxiliary material from the device by the operator is greatly facilitated. Once out of the device, the auxiliary material can be deposited in a waste container for this purpose, while continuing the operation without additional stops or jams.
    [0054]
    [0055] In a particular embodiment, the at least two slats have a curved cross section. Advantageously, this allows for better winding of the auxiliary material.
    [0056]
    [0057] In a particular embodiment, at least one of the slats is fixed by the first end to the support mechanism, and is supported by the second end on the end piece such that the support on the end piece determines the size of the end piece. internal section defined by the slats in the area of the second end.
    [0058]
    [0059] In a particular embodiment, the fixing of the slats occurs by means of hidden screws in sight.
    [0060]
    [0061] In a particular embodiment of the invention, the connecting mechanism of the end piece is configured to increase and reduce the section defined by the at least two lamas, so that:
    [0062] • in its coupled state, at least one of the slats is supported by its second end on the end piece, and
    [0063] • in its uncoupled state, at least one of the slats does not rest on the end piece.
    [0064]
    [0065] Advantageously, the end device provides rigidity to the device as the slats are better secured thanks to their coupling.
    [0066]
    [0067] In a particular embodiment, the end piece comprises a section reduction on which the second end of the at least one of the slats rests. This translates into an improvement in the arrangement of the slats during the coupling / decoupling of the end device, allowing the slats to slide smoothly along the section reduction, avoiding sharp jumps. Preferably, the section reduction is a substantially frustoconical shape.
    [0068]
    [0069] In a particular embodiment, the configuration of the slats is such that when the connection mechanism is decoupled from the second end of the bar, the slats flex in the area of the second end, producing a progressive decrease of the internal section defined by the slats. in the longitudinal direction of the bar. The bending of the slats can be induced by the tension of the winding of auxiliary material and / or because the slats are configured so that they have a tendency to flex towards the bar in the absence of an element that prevents it.
    [0070]
    [0071] In a particular embodiment, the at least two slats form a tubular element of substantially cylindrical internal section.
    [0072]
    [0073] In a particular embodiment, the slats are arranged spaced apart, so that there is a through groove between adjacent slats.
    [0074]
    [0075] In a preferred embodiment, the number of slats is eight slats.
    [0076]
    [0077] In a particular embodiment, the at least two slats include at least a first blade fixed by its first end to the support mechanism, and at least a second blade fixed by its second end to the end piece, so that the decoupling of the end piece with respect to the bar causes the disconnection of the at least one second lama regarding the support mechanism. In a preferred embodiment, the decoupling of the end piece causes the displacement of the at least a second slat with respect to the at least a first slat. Preferably, the displacement is a longitudinal displacement parallel to the longitudinal axis of the bar.
    [0078]
    [0079] In a particular embodiment, the at least one first blade fixed by its first end to the support mechanism comprises rails at its edges through which the at least one second blade longitudinally moves. Additionally, said rails serve as a guide to the at least one second slat in its displacement.
    [0080]
    [0081] In a particular embodiment, the connecting mechanism of the end piece comprises a housing adapted to insert the second end of the bar.
    [0082]
    [0083] In a particular embodiment, the second end of the bar is threaded and the connecting mechanism of the end piece comprises a threaded housing adapted to insert said second end.
    [0084]
    [0085] In a particular embodiment, the device comprises at least two plates and the bar comprises at least two grooves parallel to the longitudinal axis of the bar,
    [0086] wherein said at least two grooves comprise at least part of its extension at least one inclined plane, each slot being configured to accommodate a plate, wherein each plate comprises at least one inclined plane configured to support on the at least one inclined plane complementary to the groove that houses it, the plates being slidably fixed to the bar by means of retaining elements,
    [0087] where each blade is fixed to a plate,
    [0088] wherein the end piece comprises a movable thrust element in the longitudinal direction of the bar and thrust means configured to move the thrust element,
    [0089] where
    [0090] • in the uncoupled state of the end piece one end of the plates protrudes from the grooves towards the thrust element, that is, in a direction away from the support mechanism, and
    [0091] • in the coupled state of the end piece, the thrust element pushes the ends of the plates towards the support mechanism, causing the inclined planes of the plates to slide on the planes inclined of the grooves, which allows the radial displacement of the slats due to the joint action of the inclined planes of the plates and the grooves.
    [0092]
    [0093] In a particular embodiment, the thrust element has an annular shape and the connecting mechanism of the end piece comprises a pin configured to engage with the second end of the bar, the pin being inserted through the thrust element, so that The thrust element is linearly movable in the longitudinal direction of the bar.
    [0094]
    [0095] In a particular embodiment, the pushing means comprise:
    [0096] ■ an eccentric actuator fixed to the pin, capable of rotating around an axis transverse to the longitudinal axis of the bar, and comprising a housing for receiving a rod,
    [0097] ■ a rod configured to be inserted into the actuator housing,
    [0098] wherein the rod is adapted to transmit a rotary motion to the actuator.
    [0099]
    [0100] In this embodiment, the rotary movement of the actuator becomes a linear movement of movement for the thrust of the thrust element due to the eccentric shape of the actuator.
    [0101]
    [0102] In one embodiment, the pin is a threaded pin comprising a threaded surface in at least a portion of its extension and a head configured to push the thrust element.
    [0103]
    [0104] In one embodiment, the pin is configured to engage the second end of the bar in a detachable manner.
    [0105]
    [0106] In a particular embodiment, the device further comprises an arm joined by a rotary joint to the support mechanism. Advantageously, this arm allows to fix the device so that in a situation of use the surfaces of the slats rest on a coil of composite material, keeping the axis of the device parallel to the axis of the coil.
    [0107]
    [0108] In a particular embodiment, the arm is a tilting arm that comprises a pressure spring. Advantageously, this arm allows the device in a situation of use tilt and stand at all times on the composite coil. In this way, as the level of composite material decreases, and that of rolled auxiliary material increases, the pressure spring of the swing arm allows the surfaces of the device and the coil to be in contact at all times.
    [0109]
    [0110] In a particular embodiment, the at least two slats are made of aluminum with a non-stick surface treatment. This allows no slippage of the auxiliary material when winding on the slats and, thus, that the rotation of the device with the rotation of the composite coil is not uncoordinated. In addition, no agglomerations of material are created because of the possible folds produced during the initial winding.
    [0111]
    [0112] In a second inventive aspect, a deposition system of composite material wound in a coil is provided, characterized in that the system comprises:
    [0113] ■ a machine configured to deposit the composite material, where the machine comprises means for rotating the coil with respect to its axis, and
    [0114] ■ a device, according to any of the embodiments of the first inventive aspect.
    [0115]
    [0116] In one embodiment, the machine is configured so that the device is supported on a coil installed in said machine, so that the rotation of the coil causes the device to rotate, at the same linear speed and in a counter-rotating direction to that of the rotation of the coil It is understood that the at least two slats of the device support and roll on the coil causing both the coil and the device to rotate at the same linear speed counter-rotating.
    [0117]
    [0118] In another embodiment, the system comprises a belt or gear configured to connect the device support mechanism and a coil, causing both to rotate at the same linear speed in a counter-rotating direction.
    [0119]
    [0120] In these embodiments, the machine and the device are configured so that, as the machine rotates the coil, the device rotates in a coordinated manner with the coil, driven by the rotation of the coil. Thus, as the composite material wound in the coil is deposited, the auxiliary material adhered to its surface gradually peels off and is wound in the device.
    [0121]
    [0122] Advantageously, since it is a completely integral rotation between the device and the coil, the device rotation effectively assumes accelerations / decelerations in the process of unwinding auxiliary material, without the need to use auxiliary equipment such as motors, speed or frequency inverters, servo controllers, or programming, among others. In addition, no additional energy consumption is required to rotate the device synchronously with the coil.
    [0123]
    [0124] Additionally, this system manages to significantly reduce maintenance and electricity consumption hours, by allowing working with air conditioners (or auxiliary cooling systems) to less than 50% compared to state-of-the-art solutions. This is because the device according to any of the embodiments of the first inventive aspect only has mechanical elements.
    [0125]
    [0126] In a particular embodiment, the machine configured to deposit the composite material is an automatic fiber placement machine.
    [0127]
    [0128] In a third inventive aspect, there is provided a method of separating, winding and extracting an auxiliary material adhered to a composite material wound in a coil, characterized in that it comprises the following steps:
    [0129] a) providing a system according to any of the embodiments of the second inventive aspect and a coil comprising rolled composite material, wherein the composite material is adhered to an auxiliary material and wherein the device connection mechanism is coupled with the second end of the device bar,
    [0130] b) fasten the initial end of the auxiliary material to the slats of the device,
    [0131] c) support the device on the coil,
    [0132] d) rotate the coil to deposit the composite material wound thereon, the auxiliary material being separated from the composite material and said auxiliary material being rolled over the slats of the device, until a volume of auxiliary material is wound,
    [0133] e) decouple the end piece to reduce the section defined by the at least two slats, and
    [0134] f) remove the auxiliary material wound in the device.
    [0135]
    [0136] Advantageously, the present invention allows a substantial increase in the speed of execution, increasing the efficiency of the process and reducing production costs. Another additional advantage is that this solution does not cause tangles of auxiliary material on the composite coil and increases the deposition capacity, the system of the present invention reaching a deposition capacity of 100%. On the contrary, the prior art solutions only reach a deposition capacity of 70% composite material.
    [0137]
    [0138] All features and / or the method steps described herein (including the claims, description and drawings) may be combined in any combination, except for combinations of such mutually exclusive features.
    [0139]
    [0140] DESCRIPTION OF THE DRAWINGS
    [0141]
    [0142] These and other features and advantages of the invention will become more clearly apparent from the detailed description that follows in a preferred embodiment, given only by way of illustrative and non-limiting example, with reference to the accompanying figures. .
    [0143]
    [0144] Figures 1a-b These figures illustrate a first embodiment of the device according to the invention, wherein the end piece is disengaged and coupled, respectively.
    [0145]
    [0146] Figure 2 This figure illustrates a second embodiment of the device according to the invention, wherein at least one blade is removable.
    [0147]
    [0148] Figure 3a-3e In these figures a third embodiment of the device according to the invention is illustrated, wherein the slats change the internal section by a radial movement thereof.
    [0149]
    [0150] Figures 4a-e These figures illustrate a composite deposition system according to the invention.
    [0151]
    [0152] DETAILED EXHIBITION OF THE INVENTION
    [0153]
    [0154] The present invention defines a device (10) for winding an auxiliary material (21). The device (10) comprises a support mechanism (1), at least two slats (2), a bar (3) and an end piece (4).
    [0155] The at least two slats (2) are connected to the support mechanism (1) and are arranged so that they substantially form a tubular element, thus defining an internal section between the slats (2). The slats (2) comprise a first end (2.1) and a second end (2.2).
    [0156]
    [0157] The bar (3) is rigidly joined by a first end (3.1) to the support mechanism (1), is arranged longitudinally along the inside of the internal section defined by the at least two slats (2), and is configured to connect at a second end (3.2) with the end piece (4).
    [0158]
    [0159] The end piece (4) comprises a connection mechanism (4.2) configured to engage in a detachable manner with the second end (3.2) of the bar (3), so that in the coupled state of the end piece (4) the internal section defined by the at least two slats (2) is larger than in the uncoupled state of the end piece (4).
    [0160]
    [0161] Figures 1a and 1b show a device (10) for winding an auxiliary material (21) according to a first embodiment of the present invention.
    [0162]
    [0163] Figure 1a schematically shows the configuration of the elements that are part of the device (10) of this embodiment when the end piece (4) is uncoupled. Figure 1b shows this same element configuration when the end piece (4) is coupled. As can be seen, said coupling / decoupling of the end piece (4) occurs between the second end (3.2) of the bar (3) and the connecting mechanism (4.2) of the end piece (4) in a manner coaxial.
    [0164]
    [0165] In this embodiment the end piece (4) is a body of revolution whose end is the connection mechanism (4.2). The connection mechanism (4.2) is a housing adapted to insert the second end (3.2) of the bar (3). Preferably, the connection mechanism (4.2) is a threaded housing and the second end (3.2) of the bar (3) is also threaded to allow said coupling.
    [0166]
    [0167] Additionally, the end piece (4) comprises a section reduction (4.1) on which the second end (2.2) of the at least one of the slats (2) rests. Said section reduction (4.1) is substantially conical in order to allow the slats to slide smoothly along this section reduction during the coupling / decoupling end piece.
    [0168]
    [0169] In this embodiment the slats (2) form a tubular element, defining a substantially cylindrical internal section along its entire length between its first end (2.1) and second end (2.2). Said tubular element can also be divided by means of through grooves (2.3) extending from the first end (2.1) to the second end (2.2), thereby forming the spacing between slats (2).
    [0170]
    [0171] Said slats are connected, preferably glued, to the support mechanism (1) through an annular projection (1.1) thereof. Said annular projection (1.1) defines the sectional shape of the internal section between slats in the area of the first end (2.1), in this particular example being substantially circular. However, other forms in section are admissible, such as polygonal, being defined by the number, shape and arrangement of the slats (2).
    [0172]
    [0173] In this embodiment, the support of the slats (2) by its second end (2.2) on the end piece (4), in particular on the section reduction (4.1), determines the size of the internal section defined by the slats in the area of the second end (2.2). In this exemplary embodiment, when the end piece (4) is uncoupled, the slats (2) are kept embedded by its first end (2.1) to the support mechanism (1), and are cantilevered by its second end ( 2.2).
    [0174]
    [0175] Preferably, the slats (2) are made of aluminum with a non-stick surface treatment.
    [0176]
    [0177] In this embodiment the device (10) includes an arm (5) rotatably attached to the support mechanism (1). Thus, the support mechanism (1) can rotate freely on itself with respect to the arm (5). This allows to provide rotational movement to the entire device. In this embodiment, the arm (5) is a tilting arm comprising a pressure spring (5.1).
    [0178]
    [0179] In a situation of use of the device (10), when the winding of auxiliary material (21) around the slats (2) occurs, a certain tension is produced in the winding direction of the auxiliary material (21), which exerts by both a pressure on the outer face of the slats (2) and tends to reduce the internal section between them.
    [0180] Since these slats (2) are fixed to the support mechanism (1) by its first end (2.1) and supported on the end piece (4) by its second end (2.2), the slats (2) try to maintain their substantially tubular arrangement with a substantially cylindrical internal section. However, given the pressure exerted by the auxiliary material (21) by rolling on the slats (2), the slats (2) can flex to some extent and acquire a hyperboloid arrangement of a sheet.
    [0181]
    [0182] When the connection mechanism (4.2) of the end piece (4) is disconnected from the second end (3.2) of the bar (3), the slats (2) no longer rest on the end piece (4) by the area of the second end (2.2). Therefore, the pressure of the auxiliary material causes the slats (2) to flex in the area of their second ends (2.2) and there is a progressive decrease in the internal section defined by the slats (2) in the longitudinal direction of the bar (3).
    [0183]
    [0184] Figure 2 shows a second embodiment of the device (10) of the invention, wherein at least one blade is removable. In this embodiment the at least two slats include:
    [0185] • at least one first strip (2.5) fixed at its first end (2.1) to the support mechanism (1), and
    [0186] • at least a second slat (2.6) fixed by its second end (2.2) to the end piece (4).
    [0187]
    [0188] In this embodiment, the decoupling of the connection mechanism (4.2) of the end piece (4) with respect to the bar (3) causes the displacement of the at least a second strip (2.6) with respect to the at least one first strip (2.5 ), thus being the second strip (2.6) removable.
    [0189]
    [0190] Preferably, the first slats (2.5) comprise rails at their edges adjacent to the edges of the second removable slat (2.6). Along these rails the second removable slat (2.6) moves longitudinally. Additionally, said rails guide the at least one second strip (2.6) in its displacement.
    [0191]
    [0192] Preferably, the device of this embodiment has three slats (2), in particular:
    [0193] • two first slats (2.5) fixed by their first ends (2.1) to the support mechanism (1), for example by hidden screws, and
    [0194] • a second slat (2.6) fixed by its second end (2.2) to the end piece (4), for example by means of hidden screws.
    [0195] In this embodiment, the second blade is connected to the support mechanism (1) indirectly, by fixing it with the end piece (4).
    [0196]
    [0197] In a situation of use of the device, once an adequate volume of auxiliary material has been rolled up or the maximum storage level in the device (10) has been reached, it is removed. In this embodiment, when decoupling the end piece (4), the end piece (4) is removed together with the second removable blade (2.6). After this, the internal section between slats is reduced due to the separation of the second slat (2.6), which facilitates the extraction of auxiliary material by an operator.
    [0198]
    [0199] Figures 3a-3e show a device (10) configured to wind an auxiliary material according to a third embodiment of the present invention. The bar (3) of said device (10) comprises:
    [0200] • at least two grooves (3.3) parallel to the longitudinal axis of the bar (3), each with an inclined plane (3.3.1) in at least a portion of the extension of its internal surface, and
    [0201] • at least two plates (3.4) housed in two grooves (3.3), each with at least one inclined plane (3.4.1) configured to rest on an inclined plane (3.3.1) complementary to the groove (3.3) that the lodge
    [0202]
    [0203] The plates (3.4) are slidably fixed to the bar (3) by means of retaining elements (3.5). In addition, the plates (3.4) comprise fixing means (3.4.2) configured to fix the slats (2), whereby the connection of the at least two slats to the support mechanism is indirect through the bar (3) In this particular example.
    [0204]
    [0205] In addition, the end piece (4) of the device (10) comprises:
    [0206] • a thrust element (4.4) with an annular shape, and which is movable in the longitudinal direction of the bar (3), ie coaxially with the bar, and
    [0207] • pushing means configured to move the pushing element (4.4).
    [0208]
    [0209] In the embodiment of Figures 3a-3c, the connecting mechanism (4.2) of the end piece (4) comprises a pin (4.3) comprising a first end (4.3.1) and a ring (4.3.2) in its opposite end, therefore having a substantially key shape. The first end (4.3.1) of the pin (4.3) is configured to engage in an uncoupleable manner with the second end (3.2) of the bar (3).
    [0210]
    [0211] In addition, the pin (4.3) is inserted through a hole in the thrust element (4.4), so that the thrust element (4.4) is linearly movable along the axis of the bar (3) according to the coupling of the pin (4.3).
    [0212]
    [0213] The pushing means comprise:
    [0214] ■ an actuator (4.5.1) comprising a housing for receiving a rod (4.5.2), and
    [0215] ■ a rod (4.5.2) configured to be inserted into the actuator (4.5.1).
    [0216]
    [0217] The transition between the coupled / uncoupled state, or vice versa, is shown schematically in Figures 3b and 3c. It is seen in these figures that:
    [0218] • in the uncoupled state of the end piece (4) (figure 3b), the ends (3.4.3) of the plates protrude from the grooves (3.3) towards the thrust element (4.4), that is, they protrude in a direction away from the support mechanism (1), and • in the coupled state of the end piece (4) (figure 3c), the thrust element (4.4) pushes the ends (3.4.3) of the plates (3.4 ) towards the support mechanism (1), causing the sliding of the inclined planes (3.4.1) of the plates (3.4) on the inclined planes (3.3.1) of the slots (3.3), which enables radial displacement of the slats (2) due to the joint action of the inclined planes of the plates and the grooves.
    [0219]
    [0220] In the embodiment of Figures 3a-3c the actuator (4.5.1) is a substantially oval shaped eccentric element. The coupling of the end piece (4) (defined in this embodiment as the thrust of the ends (3.4.3) of the plates (3.4) towards the support mechanism) is produced by the different distance from the edges of the actuator ( 4.5.1) - substantially oval - to an axis of rotation.
    [0221]
    [0222] In this sense, after the pin (4.3) is inserted a certain distance in the bar (3), starting from the position shown in Figure 3b, with a 90 ° rotation of the actuator (4.5.1) caused by the rod (4.5 .2) the edges of the actuator furthest from the axis of rotation push the thrust element (4.4), which in turn passes to push the protruding end of the plates (3.4.3), as shown in Figure 3c. To produce the decoupling, upon returning the actuator (4.5.1) by a rotation of -90 ° to the position of figure 3b, ie in the opposite direction, the edges of the actuator in contact with the pushing element (4.4) they become those closest to the axis of rotation, which causes the inclined planes of the plates and the grooves to slide by the action of the retaining elements (3.5) that try to contract the plates, and that the ends of the plates they protrude from the grooves (3.3) in a direction away from the support mechanism (1).
    [0223]
    [0224] In a preferred embodiment, the rotation of the actuator (4.5.1) of 90 ° causes an advance of the thrust element (4.4) of 5 mm.
    [0225]
    [0226] Figures 3d and 3e show a different embodiment of the end piece. In this embodiment, the connection mechanism (4.2) of the end piece (4) comprises a threaded pin (4.3) comprising a threaded end (4.3.1) configured to engage in a detachable manner with the second end (3.2) of the bar (3).
    [0227]
    [0228] The threaded pin (4.3) is inserted through a hole of the thrust element (4.4), so that the thrust element (4.4) is linearly movable along the axis of the bar (3) according to the pin coupling threaded (4.3). In other words, as the threaded pin (4.3) is attached to the bar (3), it cooperates and coaxially pushes the thrust element (4.4) so that it in turn pushes the ends (3.4.3) of the plates (3.4 ) towards the support mechanism (1), causing the sliding of the inclined planes (3.4.1) of the plates (3.4) on the inclined planes (3.3.1) of the grooves (3.3). Thus the coupling of the end piece (4) occurs in this particular example.
    [0229]
    [0230] In the embodiment of figures 3d and 3e, the pushing means comprise an actuator (4.5.1) comprising a housing for receiving a rod (4.5.2) and which is configured to rotate in solidarity with the threaded pin (4.3). In this way, the action on the actuator (4.5.1) causes the threaded pin (4.3) inside the threaded hole of the bar (3), resulting in a linear movement of movement for the thrust of the element of push (4.4) as the threaded pin (4.3.1) is inserted. The thrust of the ends of the plates by the thrust element (4.4) results in a radial displacement of the slats and an increase in the internal section defined between the slats, as described above. The rod (4.5.2) facilitates the rotation of the actuator (4.5.1).
    [0231]
    [0232] In this embodiment, the decoupling and the reduction of the internal section defined between the slats are achieved by turning the threaded pin (4.3) in the opposite direction, which causes the threaded pin (4.3) to unscrew from the bar (3) and that the inclined planes of the plates and slots slide, thanks also to the action of the retaining elements (3.5) that try to contract the internal section defined by the plates.
    [0233]
    [0234] In a variation of the embodiment of figures 3d and 3e, the threaded pin head (4.3) itself has dimensions suitable for pushing the thrust element and is used as a thrust means. In this embodiment the head of the threaded pin pushes the thrust element by screwing the threaded pin (4.3) into the threaded hole of the bar (3), and the actuator can be dispensed with.
    [0235]
    [0236] As seen, in the embodiments of Figures 3a-3e the coupling can be
    [0237] • by the insertion of a threaded pin (4.3) into the bar (3) that pushes the thrust element (4.4) by means of an actuator (4.5.1) or by the head of the threaded pin itself;
    [0238] • by a rotation of an eccentric actuator (4.5.1) about an axis transverse to that of the bar (3).
    [0239]
    [0240] In one embodiment, in the uncoupled state, the slats (2) substantially form a tubular element of circular section and diameter of 59 mm, while in the coupled state they form a tubular element of circular section and diameter of 64 mm.
    [0241]
    [0242] Thus, once a suitable volume is rolled or the maximum level of auxiliary material storage is reached in the device (10), decoupling the end piece decreases the internal section between the slats. As in the devices of the other embodiments, by reducing the internal section defined between slats, the winding tensions are released, facilitating the removal or extraction of said auxiliary material from the device by the operator.
    [0243]
    [0244] Finally, in the exemplary embodiment of the device (10) shown in Figures 3a-3e, the support mechanism (1) can freely rotate on itself with respect to an arm (5), to which it is attached by means of a rotating union. This allows to provide rotational movement to the entire device. Preferably, the arm (5) is a tilting arm comprising a pressure spring (5.1).
    [0245]
    [0246] Figures 4a to 4e illustrate a composite deposition system according to the invention, comprising a machine and a device.
    [0247] In particular, the composite deposition system (100) shown in said figures comprises:
    [0248] ■ a machine (30) configured to automatically deposit the composite material (22) wound in a coil (20), which rotates with respect to an axis (20.1), and ■ a device (10) to wind the auxiliary material (21) originally adhered to the composite sheet (22), the device (10) being like any of those shown in Figures 1a to 3e.
    [0249]
    [0250] The composite material (22) has originally attached auxiliary material (21), ie when it is wound in the coil (20).
    [0251]
    [0252] In the system (100), the device (10) is configured to rotate at the same linear speed of the coil (20), in a counter-rotating direction. This can be due to both support and bearing of both, and the use of belts or gears. In any of the above cases, the use of variable speed drives or servo controllers is eliminated.
    [0253]
    [0254] Preferably, the slats (2) of the device (10) rest and roll on the coil (20) causing both to rotate at the same linear speed in a counter-rotating direction. That is, the device (10) and the coil (20) have a rolling bearing point which does not suffer sliding with respect to the other, or what is the same, the relative speed between device (10) and coil (20 ) at that point is 0.
    [0255]
    [0256] The device (10) comprises a support mechanism (1) that can freely rotate on itself with respect to an arm (5), to which it is attached by means of a rotating union. This allows to provide rotational movement to the entire device. Preferably, the arm (5) is a tilting arm comprising a pressure spring (5.1), whereby the arm (5) swings between a position where the device (10) is separated from the coil (20) , and another position where both are at all times resting on each other thanks to the pressure spring (5.1).
    [0257]
    [0258] In a preferred embodiment, the machine (30) is an automatic fiber placement machine.
    [0259]
    [0260] In addition, Figures 4a to 4e schematically show the steps of the method according to the present invention. Said method is a method of separating, winding and extracting an auxiliary material (21) adhered to a sheet of composite material (22) wound in a coil (20).
    [0261]
    [0262] Figure 4a shows a device (10) according to any of those shown in Figures 1a to 3e and a coil (20). In addition, the connection mechanism (4.2) of the device (10) is coupled with the second end (3.2) of the bar (3) of the device (10).
    [0263]
    [0264] Figure 4b shows how the initial end of the auxiliary material (21) is attached to the slats (2) of the device (10). In this particular example, it can be seen that said initial end is attached to one of the slats (2). However, other options such as hooked, tied, held or held, are possible.
    [0265]
    [0266] Figure 4c shows how the at least two slats (2) of the device (10) rest on the coil (20). In particular, in this figure the device comprises a swing arm (5) which further comprises a pressure spring (5.1) to keep the device (10) and the coil (20) in contact at all times.
    [0267]
    [0268] In Figure 4d it can be seen how by rotating the coil (20) to deposit the rolled composite material therein, the auxiliary material (21) is separated from the composite sheet (22) and self-wound on the slats ( 2) of the device (10) until a volume of auxiliary material (21) is achieved.
    [0269]
    [0270] In Figure 4e it can be seen how the end piece (4) is disengaged to reduce the section defined by the at least two slats (2). Once an adequate volume has been rolled up or the maximum storage level of auxiliary material is reached in the device (10), the operator in charge decouples said end piece (4), with the decrease of the internal section between the slats ( 2) and producing the release of tensions in the rolled material (21).
    [0271]
    [0272] As in the devices of the previous figures, when the section between slats is reduced, the winding tensions are released, facilitating the removal or extraction of said auxiliary material from the device by the operator.
    [0273]
    [0274] In a particular embodiment not shown, the system (100) comprises a machine (30) and several devices (10), which can wind auxiliary material (21) wound in the same coil (20) or simultaneously, without having to make stops of deposition of composite material (22) between exchanges of device (10) working.
    权利要求:
    Claims (20)
    [1]
    1. - Device (10) for winding an auxiliary material (21), wherein the device (10) is characterized in that it comprises:
    a support mechanism (1);
    at least two slats (2), connected to the support mechanism (1) and arranged so that they substantially form a tubular element, thus defining an internal section between them, wherein the at least two slats (2) comprise a first end (2.1) and a second end (2.2);
    a bar (3); Y
    an end piece (4);
    wherein the bar (3) is rigidly joined by a first end (3.1) to the support mechanism (1), it is arranged longitudinally along the inside of the internal section defined by the at least two slats (2), and is configured to connect at a second end (3.2) with the end piece (4); Y
    wherein the end piece (4) comprises a connection mechanism (4.2) configured to engage in a detachable manner with the second end (3.2) of the bar (3), so that in the coupled state of the end piece ( 4) the internal section defined by the at least two slats (2) is larger than in the uncoupled state of the end piece (4).
    [2]
    2. - The device (10) according to claim 1, characterized in that at least one of the slats (2) is fixed by the first end (2.1) to the support mechanism (1), and is supported by the second end ( 2.2) on the end piece (4) in such a way that the support on the end piece (4) determines the size of the internal section defined by the slats (2) in the area of the second end (2.2).
    [3]
    3. - The device (10) according to claim 2, characterized in that the end piece (4) comprises a section reduction (4.1) on which the second end (2.2) of the at least one of the slats ( 2).
    [4]
    4. - The device (10) according to claim 2 or 3, characterized in that the configuration of the slats (2) is such that when the connection mechanism (4.2) is decoupled from the second end (3.2) of the bar ( 3), the slats (2) flex in the area of the second end (2.2), producing a progressive decrease of the internal section defined by said slats (2) in the longitudinal direction of the bar (3).
    [5]
    5. - The device (10) according to claim 1, characterized in that the at least two slats (2) include at least a first blade (2.5) fixed by its first end (2.1) to the support mechanism (1), and at least a second slat (2.6) fixed by its second end (2.2) to the end piece (4), so that the decoupling of the end piece (4) from the bar (3) causes the disconnection of the at least a second slat (2.6) with respect to the support mechanism (1).
    [6]
    6. - The device (10) according to claim 1, characterized in that it comprises at least two plates (3.4) and that the bar (3) comprises at least two grooves (3.3) parallel to the longitudinal axis of the bar (3) ,
    wherein said at least two slots (3.3) comprise at least part of its extension at least one inclined plane (3.3.1), each slot (3.3) being configured to accommodate a plate (3.4),
    wherein each plate (3.4) comprises at least one inclined plane (3.4.1) configured to support on the at least one inclined plane (3.3.1) complementary to the groove (3.3) that houses it, the plates (3.4) being slidably fixed to the bar (3) by means of retaining elements (3.5),
    where each strip (2) is fixed to a plate (3.4),
    wherein the end piece (4) comprises a pushing element (4.4) movable in the longitudinal direction of the bar (3) and pushing means configured to move the pushing element (4.4),
    where
    • in the uncoupled state of the end piece (4) one end (3.4.3) of the plates protrudes from the grooves (3.3) towards the thrust element (4.4), and • in the coupled state of the end piece (4), the pushing element (4.4) pushes the ends (3.4.3) of the plates (3.4) towards the support mechanism (1), causing the inclined planes (3.4.1) to slide from the plates ( 3.4) on the inclined planes (3.3.1) of the grooves (3.3), which enables the radial displacement of the slats (2) due to the joint action of the inclined planes of the plates and the grooves.
    [7]
    7. - The device (10) according to the preceding claim, characterized in that the thrust element (4.4) has an annular shape and the connection mechanism of the end piece (4) comprises a pin (4.3) configured to engage with the second end (3.2) of the bar (3), the pin (4.3) being inserted through the pushing element (4.4), so that the Pushing element (4.4) is linearly movable in the longitudinal direction of the bar (3).
    [8]
    8. - The device (10) according to claim 7, characterized in that the pushing means comprise:
    ■ an eccentric actuator (4.5.1), fixed to the pin (4.3), capable of rotating around an axis transverse to the longitudinal axis of the bar (3), and comprising a housing for receiving a rod (4.5.2) ,
    ■ a rod (4.5.2) configured to be inserted into the actuator housing (4.5.1),
    wherein the rod (4.5.2) is adapted to transmit a rotary motion to the actuator (4.5.1).
    [9]
    9. - The device (10) according to claim 7, characterized in that the pin (4.3) is a threaded pin comprising a threaded surface (4.3.1) in at least a portion of its extension and a head configured to push the pushing element (4.4).
    [10]
    10. - The device (10) according to any of the preceding claims, characterized in that the at least two slats (2) have a curved cross section.
    [11]
    11. - The device (10) according to any of the preceding claims, characterized in that the slats are arranged spaced apart from each other, so that there is a through groove between adjacent slats.
    [12]
    12. - The device (10) according to any of the preceding claims, characterized in that the connection mechanism (4.2) of the end piece (4) comprises a housing adapted to insert the second end (3.2) of the bar (3) .
    [13]
    13. - The device (10) according to claim 12, characterized in that the second end (3.2) of the bar (3) is threaded and the connection mechanism (4.2) of the end piece (4) comprises an adapted threaded housing to insert said second end (3.2).
    [14]
    14. - The device (10) according to any of the preceding claims, characterized in that it additionally comprises an arm (5) connected by means of a rotary joint to the support mechanism (1).
    [15]
    15. - The device (10) according to any of the preceding claims, characterized in that the at least two slats (2) are made of aluminum with a non-stick surface treatment.
    [16]
    16. - System (100) of deposition of composite material (22) wound in a coil (20), characterized in that the system (100) comprises:
    ■ a machine (30) configured to deposit the composite material (22), wherein the machine (30) comprises means for rotating the coil (20) with respect to its axis (20.1), and
    ■ a device (10) according to any one of claims 1 to 15.
    [17]
    17. - The system (100) according to claim 16, characterized in that the machine (30) is configured so as to allow the device (10) to rest on a coil (20) installed in the machine (30), so that the rotation of the coil (20) causes the rotation of the device, at the same linear speed and in a counter-rotating direction to that of the rotation of the coil (20).
    [18]
    18. - The system (100) according to claim 16, characterized in that it comprises a belt or gear configured to connect the support mechanism (1) of the device (1) and a coil (20) causing both to rotate at the same speed linear counter-rotating.
    [19]
    19. - The system (100) according to any of claims 16 to 18, characterized in that the machine (30) is an automatic fiber placement machine.
    [20]
    20. - Method of separation, winding and extraction of an auxiliary material (21) adhered to a composite material (22) wound in a coil (20), characterized in that it comprises the following steps:
    a) providing a system (100) according to any of claims 15 to 18 and a coil (20) comprising rolled composite material (22), wherein the composite material (22) is adhered to an auxiliary material (21) and wherein the connection mechanism (4.2) of the device (10) is coupled with the second end (3.2) of the bar (3) of the device (10),
    b) fasten the initial end of the auxiliary material (21) to the slats (2) of the device (10), c) rest the device (10) on the coil (20),
    d) rotate the coil (20) to deposit the rolled composite material in the same, the auxiliary material (21) being separated from the composite material (22) and said auxiliary material (21) being wound on the slats (2) of the device (10), until a volume of auxiliary material (21) is wound,
    e) decouple the end piece (4) to reduce the section defined by the at least two slats (2), and
    f) remove the auxiliary material (21) rolled in the device (10).
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    同族专利:
    公开号 | 公开日
    EP3533740A1|2019-09-04|
    ES2723983B2|2020-02-28|
    US20190263615A1|2019-08-29|
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    ES201830190A|ES2723983B2|2018-02-28|2018-02-28|DEVICE FOR COILING AN AUXILIARY MATERIAL, DEPOSITION SYSTEM FOR COMPOSITE MATERIAL AND METHOD OF SEPARATION, COILING AND EXTRACTION OF AN AUXILIARY MATERIAL|ES201830190A| ES2723983B2|2018-02-28|2018-02-28|DEVICE FOR COILING AN AUXILIARY MATERIAL, DEPOSITION SYSTEM FOR COMPOSITE MATERIAL AND METHOD OF SEPARATION, COILING AND EXTRACTION OF AN AUXILIARY MATERIAL|
    US16/287,071| US20190263615A1|2018-02-28|2019-02-27|System and method for separation, winding, and extraction of an ancillary material|
    EP19159773.1A| EP3533740A1|2018-02-28|2019-02-27|Device for winding an ancillary material, system for the placement of composite material and method for the separation, winding, and extraction of an anciallary material|
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