KR102331709B1 - Multi axial winding method and multi axial winding equipment for winding filament materials - Google Patents

Abstract

The present invention relates to a filament material-based multi-axis winding method and multi-axis winding equipment capable of winding a filament material such as carbon fiber or aramid fiber, etc. using single winding equipment while maintaining various winding angles of the filament material stably and reliably, easily performing adjustment of the winding angle, and relatively further increasing the physical properties of the final winding product. According to the present invention, provided is filament material-based multi-axis winding equipment comprising: a forward and backward linear movement driving device unit formed to be movable forward and backward linearly; a rotation driving device unit provided in the front and rear linear movement driving device unit; a mandrel having both ends detachably provided in the front and rear linear movement device unit and rotationally driven by the rotation driving device unit; a material guide device unit provided at one end side of the mandrel and guiding a filament material supplied from a creel in a direction perpendicular to the mandrel; and a heating device unit provided on at least one of a front side and a rear side of the material guide device unit and formed to allow the mandrel to pass therethrough.

Description

Filament material multi-axis winding method and multi-axis winding equipment

The present invention relates to a multiaxial winding method of a filament material and a multiaxial winding facility, and more particularly, using a single winding facility for a filament material such as carbon fiber or aramid fiber while stably and reliably maintaining various winding angles of the filament material It relates to a filament material multi-axis winding method and multi-axis winding equipment that can be wound, can easily adjust the winding angle, and can relatively further increase the physical properties of the final winding product.

In general, the multifilament winding method refers to a molding method in which continuous filaments of FRP are wound on the surface of a mandrel while applying tension, cured by heat, and then taken out from the mandrel.

Carbon fiber is mainly used for such multifilament winding, and since the carbon fiber has excellent mechanical properties, in particular, specific strength and high specific modulus of elasticity, it is widely used in aerospace applications, leisure uses, general industrial purposes, and the like.

In particular, the filament winding (FW) molding method is used in aircraft structural materials that require high strength due to the high performance of composite materials, and in fuel pressure vessels (cylinders) such as natural gas vehicles and hydrogen fuel cell vehicles.

Accordingly, carbon fibers and/or aramid fibers are formed by filament winding molding as reinforcing fibers for weight reduction and high performance, and research and development of methods and facilities that can significantly improve FW formability and workability are required.

Republic of Korea Patent Publication No. 10-1485443 (2015.01.23. Announcement) Republic of Korea Patent Publication No. 10-1755301 (2017.07.07. Announcement) Korean Patent Publication No. 10-2001-0023145 (published on March 28, 2001)

Therefore, in order to solve the above-mentioned conventional problems, a filament material such as carbon fiber or aramid fiber can be wound while stably and reliably maintaining various winding angles of the filament material using a single winding facility, and the winding angle of An object of the present invention is to provide a filament material multi-axis winding method and multi-axis winding equipment that can be easily adjusted and can relatively further increase the physical properties of the final winding product.

The problems to be solved of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

According to one aspect of the present invention for achieving the above objects and other features of the present invention, a mandrel mounting step of mounting the mandrel in a linear moving device configured to be movable forward and backward; A material fixing step of guiding a filament material supplied from a creel stand in a direction perpendicular to the mandrel through a material guide device configured on one end side of the mandrel and fixing it to one end of the mandrel; Inclined winding step of rotating the mandrel through the mandrel rotating device in a state in which the filament material is fixed and winding the filament material while linearly moving the linear moving device forward and backward; and a parallel array winding step of winding while arranging the filament material in a direction parallel to the longitudinal direction of the mandrel over the entire circumference of the mandrel after the inclined winding step; , There is provided a filament material multiaxial winding method comprising a heating step of heating the adhesive film laminated on the wound filament material is provided.

In one aspect of the present invention, the inclined winding step may be made to adjust the inclination angle of the winding by adjusting the linear movement speed of the linear moving device part on which the mandrel is mounted and the rotation speed of the mandrel rotating device part.

In one aspect of the present invention, after fixing the filament material to the other end of the mandrel, a plurality of cross-winding device parts rotatably installed using the mandrel as the central axis of rotation while rotating the filament material around the mandrel It may further include a cross winding step of winding the.

According to another aspect of the present invention, as a filament material multi-axis winding facility for winding the filament material provided on the supply direction side of the creel, the front and rear linear movement drive unit configured to be movable forward and backward linearly; a rotation driving unit provided in the front and rear linear movement driving unit; a mandrel having both ends detachably provided to the front and rear linear movement unit, and rotationally driven by the rotation driving unit; a material guide device provided at one end side of the mandrel and guiding the filament material supplied from the creel in a direction perpendicular to the mandrel; and a heating device provided on at least one of the front side and the rear side of the material guide device, and configured to allow the mandrel to pass therethrough.

In another aspect of the present invention, the front-rear linear movement drive unit includes a rear drive unit and a front follower unit, and the rear drive unit includes a rear drive table, a drive motor provided on the rear drive table, and the drive A drive guide means for receiving the driving force of a motor to linearly move the rear drive table forward and backward, and a chuck means provided on an upper surface of the rear drive table to detachably coupled to the other end of the mandrel, the rear drive device The part is provided on a front driven table, a rolling roller provided on the lower surface of the front driven table, a guide rail to which the rolling roller is guided, and an upper surface of the front driven table to detachably and rotatably support one end of the mandrel. It may include a bearing-type support coupling member.

In another aspect of the present invention, the mandrel includes a rotating shaft, a mandrel formed over a predetermined length from the rotating shaft, having a relatively larger diameter than the rotating shaft, and the mandrel. At both ends of the part, protrusions protruding at intervals in the circumferential direction are formed over the entire circumference, and the material guide device part is a guide ring support in which a penetration part through which the mandrel passes when the mandrel is linearly moved is formed, and the guide. It is provided in a plurality of ring support and includes a guide ring configured to guide the filament material unwound and supplied from the creel in a direction perpendicular to the mandrel, wherein the heating device part is provided on the heater support body, and the heater support body, and the central part It may include a heater member in which a through portion through which the mandrel passes is formed.

In another aspect of the present invention, the cross is provided within the range of linear movement forward and backward of the mandrel, and is configured to wind the filament material on the mandrel in a direction that crosses the longitudinal direction of the mandrel while rotating around the mandrel. It may further include a winding device.

In another aspect of the present invention, the cross winding device unit, a fixed support frame; a driving motor provided on one side of the fixed support frame; a rotating frame that is rotatably coupled to the fixed support frame and rotates by receiving the driving force of the driving motor; and a material unwinding-guide means provided on one surface of the rotating frame and winding the filament material on the mandrel by the rotation of the rotating frame by unwinding the wound filament material while guiding the mandrel.

In another aspect of the present invention, the fixed support frame further includes a rotation support roller for rotatably supporting the rotation frame, the material unwinding-guide means is a mounting part on which a bobbin wound with a filament material is mounted, and one or more guide rollers provided in parallel with the mounting part to guide the filament material.

According to the filament wire multi-axis winding facility according to the present invention, the following effects are provided.

First, the present invention has the effect of being able to easily wind a filament material such as carbon fiber and aramid fiber at an angle to be wound using a single winding facility.

Second, the present invention has the effect of remarkably increasing the physical properties of the final winding product because the filament material can be wound at winding angles in various directions using only one facility.

Third, the present invention has an effect that can easily adjust the winding angle of the filament material can improve the design freedom for the physical properties of the final winding product.

Effects of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a side view showing a filament material multi-axis winding equipment according to the present invention.
Figure 2 is a plan view showing the filament material multi-axis winding equipment according to the present invention.
Figure 3 is a front view showing the end of the mandrel included in the filament material multi-axis winding equipment according to the present invention.
Figure 4 is a conceptual diagram for explaining the state of being wound at 45 ° and -45 ° on the mandrel guided by the material guide device included in the filament material multi-axis winding equipment according to the present invention.
5 is a front view showing a heating device included in the filament material multi-axis winding equipment according to the present invention.
6 is a plan view showing a cross-winding device included in the filament material multi-axis winding equipment according to the present invention.
7 and 8 are explanatory views for explaining the winding process executed by the filament material multi-axis winding equipment according to the present invention, respectively.

Additional objects, features and advantages of the present invention may be more clearly understood from the following detailed description and accompanying drawings.

Prior to the detailed description of the present invention, the present invention can make various changes and can have various embodiments, and the examples described below and shown in the drawings are not intended to limit the present invention to specific embodiments. No, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

When a component is referred to as being “connected” or “connected” to another component, it is understood that the other component may be directly connected or connected to the other component, but other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that no other element is present in the middle.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprises" or "have" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

In addition, terms such as "...unit", "...unit", "...module", etc. described in the specification mean a unit that processes at least one function or operation, which includes hardware or software or hardware and It can be implemented by a combination of software.

In addition, in the description with reference to the accompanying drawings, the same components are given the same reference numerals regardless of the reference numerals, and the overlapping description thereof will be omitted. In describing the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

Hereinafter, a multi-axis winding method and a multi-axis winding facility for a filament material according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings. In the description of the present invention below, the filament Oyer material is meant to include not only carbon fibers or aramid fibers, but also wire-type materials such as fiber yarns, fiber bundles, and fine coils.

First, a method for multiaxial winding of a filament material according to the present invention will be described.

A filament material multiaxial winding method according to the present invention comprises: a mandrel mounting step of mounting both ends of a mandrel to a linear moving device configured to be movable forward and backward and both ends of the mandrel are detachably configured; A material fixing step of guiding a filament material supplied from a creel stand in a direction perpendicular to the mandrel through a material guide device configured at one end of the mandrel, which is an end of the filament material supply side, and fixing it to one end of the mandrel; Inclined winding step of rotating the mandrel through the mandrel rotating device in a state in which the filament material is fixed and winding the filament material while linearly moving the linear moving device forward and backward; and a parallel-array winding step of winding the entire perimeter of the mandrel while arranging the filament material in a direction parallel to the longitudinal direction of the mandrel after the oblique winding step; including, wherein the oblique winding step and the parallel-array winding step are repeated After execution of the warp winding step (after at least one forward and backward linear movement), or after the warp winding step and the parallel winding step are executed a predetermined number of times, the filament material wound on the mandrel is heated Or, a heating step of heating the adhesive film laminated on the wound filament material.

In the inclined winding step, the inclination angle of the winding may be adjusted by adjusting the linear movement speed of the linear moving device to which the mandrel is mounted and the rotational speed of the mandrel rotating device. In the present invention, it is preferable to have 45° to 60° (angle from an imaginary line orthogonal to the longitudinal direction of the mandrel).

The heating step may be performed by heating the tunnel-type heater device part formed in the form of a tunnel in the linear movement direction of the mandrel by indirect heating while allowing the mandrel to pass therethrough.

In addition, the filament material multi-axis winding method of the present invention is a plurality of cross-winding devices rotatably installed around the mandrel after the execution of the inclined winding step, or after the inclined winding step and the parallel arrangement winding step are executed a predetermined number of times. The method may further include a cross winding step of fixing the filament material to the other end of the mandrel through the part and then winding the filament material while rotating the circumference of the mandrel, that is, using the mandrel as the central axis of rotation.

The cross winding step may be performed while rotating while rotating in a direction opposite to the rotation direction of the mandrel, and may be simultaneously performed while the inclined winding step is executed.

Next, the filament multi-axis winding facility for implementing the multi-axis winding method of the filament material according to the present invention will be described in detail with reference to FIGS. 1 to 8 .

1 is a side view showing the multi-axis winding facility of the filament material according to the present invention, Figure 2 is a plan view showing the multi-axis winding facility of the filament material according to the present invention, Figure 3 is a mand included in the multi-axis winding facility of the filament material according to the present invention It is a front view showing the end of the reel. 4 is a conceptual diagram for explaining a state of being wound at 45° and -45° on a mandrel by being guided by a material guide device included in the filament material multi-axis winding facility according to the present invention, and FIG. 5 is according to the present invention It is a front view showing the heating device included in the multi-axis winding facility of the filament material, Figure 6 is a plan view showing the cross-winding device included in the multi-axis winding facility of the filament material according to the present invention. 7 and 8 are explanatory views for explaining the winding process executed by the filament material multi-axis winding equipment according to the present invention, respectively.

Filament material multi-axis winding facility according to the present invention is provided on the supply direction side of the creel stand 10 configured to supply the filament material wound on each of a plurality of bobbins in one direction, the filament material multi-axis winding for winding the filament material As a facility, as shown in Figs. 1 to 8, the front and rear linear movement drive unit 100 largely; rotation drive unit 200; mandrel 300; Material guide device 400; and a heating device unit 500 , and may further include a cross winding device unit 600 .

Specifically, the filament wire multi-axis winding facility according to the present invention is provided on the supply direction side of the creel stand 10 configured to supply the filament material wound on each of the plurality of bobbins in one direction, the filament for winding the filament material. As a material multi-axis winding facility, as shown in Figs. 1 to 8, the front and rear linear movement drive unit 100 configured to be linearly movable on the front side of the creel stand (10); a rotation driving unit 200 provided in the front and rear linear movement driving unit 100 and rotating the mandrel 300 below; Both ends are provided to be detachably attached to the front-rear linear movement device unit 100, the mandrel 300 is rotationally driven by the rotation drive unit 200; a material guide device unit 400 provided on one end side of the mandrel 300 and guiding the filament material supplied from the creel stand 10 in a direction perpendicular to the mandrel 300; And it is provided on at least one of the front side and the rear side of the material guide device 400 to heat the filament material wound on the mandrel 300 (filament material wound on the mandrel and laminated), or a wound filament and a heating device unit 500 for heating the laminated film laminated on the material.

The front and rear linear movement driving unit 100 largely includes a rear driving unit 110 and a front driven unit 120 .

The rear driving device unit 110 receives the driving force of the rear driving table 111 , the driving motor 112 provided in the rear driving table 111 , and the driving motor 112 to the rear driving table 111 . ) includes a driving guide means 113 that is installed so as to linearly move back and forth.

A chuck means 114 to which one end of the mandrel 300 described below is detachably coupled is provided on the upper surface of the rear driving table 111 .

The driving guide means 113 may be configured as a rack-and-pinion type driving device, and if the driving force of the driving motor 112 is transmitted to the rear driving table 111 is a configuration or device that can linearly move forward and backward, it is particularly limited. it's not going to be

The rear drive unit 120 includes a front driven table 121 , a rolling roller 122 provided on a lower surface of the front driven table 121 , and a guide rail 123 to which the rolling roller 122 is guided. includes

On the upper surface of the front driven table 121 , the other end of the mandrel 300 to be described below is detachable and a bearing-type support coupling member 124 for rotatably supporting it is provided.

The rotation drive unit 200 is configured as a drive motor.

Both ends of the mandrel 300 are detachably provided on the front and rear linear movement device 100 and are rotationally driven by the rotation drive device 200 , and one end of the rear drive table is provided. The rotation shaft is detachably coupled to the chuck means 114 provided on the upper surface of the 111 , and the other end is detachably coupled to the bearing-type support coupling member 124 provided on the upper surface of the front driven table 121 . It is formed of the part 310 and the mandrel part 320 formed over a predetermined length from the rotation shaft part 310 and having a relatively larger diameter than the diameter of the rotation shaft part 310 .

In addition, as shown in FIG. 3 , the mandrel 300 has protrusions 330 formed to protrude at intervals in the circumferential direction over the entire circumference at both ends of the mandrel unit 320 .

The protrusion 330 is a component used for parallel-array winding in which the filament material is arranged in a direction parallel to the longitudinal direction of the mandrel and wound over the entire circumference of the mandrel.

Subsequently, the material guide device 400 is provided on one end side of the mandrel 300 , and guides the filament material supplied from the creel stand 10 in a direction perpendicular to the mandrel 300 . As a part, it is provided between the rear drive unit 110 and the front follower unit 120, and a guide ring support ( 410), and a guide ring provided with a plurality of the guide ring support 410, a ring portion is formed at the end to guide the filament material unwound and supplied from the creel stand 10 in a direction perpendicular to the mandrel 300 ( 420).

Next, the heating device unit 500 is provided on at least one of the front side and the rear side of the material guide unit 400, and the filament material wound on the mandrel 300 (winding on the mandrel and stacked) As a component for heating the filament material), it is provided in the heater support 510, and the heater support 510 located on at least one of the front side and/or the rear side of the material guide device 400, and is provided in the central part. A through portion through which the mandrel 300 passes is formed and includes a heater member 520 that receives power from a power supply and indirectly heats the mandrel 400 .

The heater member 520 may be configured as a cylindrical casting heater, for example, may be configured as a cartridge insertion type heater.

Next, the filament wire multi-axis winding facility of the present invention is provided within the range of linear movement back and forth of the mandrel 300, and while rotating the circumference of the mandrel 300, the filament material is applied to the mandrel 300. It may further include a cross winding device unit 600 configured to be wound in a direction crossing the longitudinal direction of the reel 300 .

As shown in FIG. 6 , the cross winding device unit 600 includes a fixed support frame 610 , a driving motor 620 provided on one side of the fixed support frame 610 , and the fixed support frame 610 . A rotating frame 630 that is rotatably coupled to and rotates by receiving the driving force of the driving motor 620, and is provided on one surface of the rotating frame 630, and is unwound while guiding the wound filament material to the rotating frame It includes a material unwinding-guide means 640 for winding the filament material on the mandrel 300 by rotation of 630 .

The fixed support frame 610 is provided with a rotation support roller 611 for rotatably supporting the rotation frame 630 . In the drawing, a plurality of rotation support rollers 611 are provided in a rotation direction to support the edge of the rotation frame 630 in a rolling manner.

The material unwinding-guide means 640 includes a mounting portion 641 on which a bobbin wound with a filament material is mounted, and one or more guide rollers 642 provided in parallel with the mounting portion 641 to guide the filament material. .

The material unwinding-guide means 640 may be composed of one or more, it is preferable to have a plurality of intervals in the rotational direction.

The cross winding device unit 600 configured as described above fixes the filament material to the end of the mandrel 300 in a state in which the bobbin is mounted on the mounting unit 641 , and then rotates the circumference of the mandrel 300 . Cross winding the filament material.

The cross-winding device 600 is wound while rotating in a direction opposite to that of the mandrel 300 .

According to the multiaxial winding method and the multiaxial winding facility of the filament material according to the present invention as described above, the filament material such as carbon fiber and aramid fiber can be easily wound at an angle to be wound by using a single winding facility, Filament material can be wound at multiple winding angles using only one facility, so the physical properties of the final winding product can be significantly increased, and the winding angle of the filament material can be easily adjusted. There is an advantage that the degree of freedom can be improved.

The embodiments described in this specification and the accompanying drawings are merely illustrative of some of the technical ideas included in the present invention. Therefore, since the embodiments disclosed in the present specification are for explanation rather than limitation of the technical spirit of the present invention, it is obvious that the scope of the technical spirit of the present invention is not limited by these embodiments. Modifications and specific embodiments that can be easily inferred by those skilled in the art within the scope of the technical idea included in the specification and drawings of the present invention should be interpreted as being included in the scope of the present invention.

10: Krill
100: front and rear linear movement drive unit
110: rear drive unit
111: rear drive table
112: drive motor
113: drive guide means
114: chuck means
120: front follower unit
121: front driven table
122: rolling roller
123: guide rail
124: bearing type support coupling member
200: rotation drive unit
300: mandrel
310: rotation shaft unit
320: mandrel part
330: protrusion
400: material guide device unit
410: guide ring support
420: guide ring
500: heating device unit
510: heating support
520: heater member
600: cross winding device unit
610: fixed support frame
611: rotation support roller
620: drive motor
630: rotating frame
640: material unwinding-guide means
641: mounting part
642: guide roller

Claims (9)

delete delete delete As a filament material multi-axis winding facility installed on the supply direction side of the creel rod to wind the filament material,
Forward and backward linear movement drive unit configured to be movable forward and backward linearly;
a rotation driving unit provided in the front and rear linear movement driving unit;
a mandrel having both ends detachably provided in the front and rear linear movement unit, and rotationally driven by the rotation driving unit;
a material guide device provided on one end side of the mandrel and guiding the filament material supplied from the creel in a direction perpendicular to the mandrel; and
a heating device provided on at least one of a front side and a rear side of the material guide device, and configured to allow the mandrel to pass through;
The front and rear linear movement drive unit includes a rear drive unit and a front follower unit,
The rear drive unit includes a rear drive table, a drive motor provided in the rear drive table, a drive guide means for receiving the driving force of the drive motor to linearly move the rear drive table forward and backward, and a top surface of the rear drive table. It is provided and includes a chuck means to which the other end of the mandrel is detachably coupled,
The rear drive unit is provided on a front driven table, a rolling roller provided on a lower surface of the front driven table, a guide rail to which the rolling roller is guided, and an upper surface of the front driven table, so that one end of the mandrel is detachable and A bearing-type support coupling member for rotatably supporting,
The mandrel includes a rotating shaft part, a mandrel part formed over a predetermined length from the rotating shaft part and having a relatively larger diameter than that of the rotating shaft part, and both ends of the mandrel part over the entire circumference of the mandrel part. A protrusion is formed to protrude with a gap in the circumferential direction,
The material guide device part is provided with a plurality of guide ring support and a guide ring support in which a through part through which the mandrel passes when the mandrel is linearly moved, and the filament material unwound from the creel and supplied is perpendicular to the mandrel. a guiding ring configured to guide in the direction;
The heating device unit includes a heater support and a heater member provided on the heater support, the central part is formed in a tunnel shape in the linear movement direction of the mandrel, and a through part through which the mandrel passes is formed,
A cross winding device provided within the linear movement range of the mandrel back and forth and configured to wind the filament material on the mandrel in a direction that crosses the longitudinal direction of the mandrel while rotating around the mandrel further comprising:
Mounting the mandrel to the front and rear linear movement driving unit, guide the filament material supplied from the creel through the material guide unit in a direction perpendicular to the mandrel and fix it to one end of the mandrel, and the rotation The mandrel is rotationally driven through the driving device, and the filament material is obliquely wound while linearly moving the forward and backward linear movement driving device forward and backward. After parallel array winding while arranging the materials, heating the filament material wound on the mandrel, or heating an adhesive film laminated on the wound filament material, the inclined winding is a linear movement of the front and rear linear movement drive unit Adjusting the inclination angle of the winding by adjusting the moving speed and the rotational speed of the rotation drive unit, after the oblique winding is executed, or after the oblique winding and the parallel arrangement winding are performed a predetermined number of times, the filament at the other end of the mandrel After fixing the material, it is made to perform cross-winding of winding the filament material while rotating the cross-winding device part around the mandrel, and the heating is performed while allowing the mandrel to pass through the central portion of the tunnel-shaped heating member. characterized in that it is configured to carry out indirect heating
Filament material multi-axis winding equipment.
delete delete delete 5. The method of claim 4,
The cross winding device unit,
fixed support frame;
a driving motor provided on one side of the fixed support frame;
a rotating frame that is rotatably coupled to the fixed support frame and rotates by receiving the driving force of the driving motor; and
It is provided on one surface of the rotating frame and unwinds the wound filament material while guiding the mandrel to wind the filament material on the mandrel by the rotation of the rotating frame - guide means; characterized in that it comprises a;
Filament material multi-axis winding equipment.
9. The method of claim 8,
Further comprising a rotation support roller provided on the fixed support frame to rotatably support the rotation frame,
The material unwinding-guide means comprises a mounting portion on which a bobbin wound with a filament material is mounted, and one or more guide rollers provided in parallel with the mounting portion to guide the filament material.
Filament material multi-axis winding equipment.

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