JPH11147673A - Preform manufacturing device for frm, and manufacture thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the arrangement accuracy of reinforced fibers and improve the manufacturing property by providing a molding spool which winds a composite wire bar body in an arrangement winding condition and a tensile force setting means which gives tensile force to the composite wire bar body connected with a rotation system of a wire storage spool. SOLUTION: This manufacturing device X is constituted in such a way that a molding spool 2 winds a composite wire bar body W fed out from a wire storage spool 1 arranged on a support table T in an upper part of a pedestal F in an arrangement winding condition. The wire storage spool 1 is rotatably attached by a bearing 1a for the support table T, and a tensile force setting means 4 which gives tensile force to the composite wire bar body W by applying brake to the rotation is provided in a rotation system 1b of the wire storage spool 1. Moreover, a shaping means 5 for assisting the arrangement winding condition and a vibration suppression means 6 for suppressing pulsation of the composite wire bar body W during transfer are provided. Furthermore, an optical sensor 7 for detecting positional deviation of the composite wire bar body W which is moving is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an apparatus and a method for producing a preform for FRM (fiber reinforced metal).

[0002]

2. Description of the Related Art Technical example 1: Japanese Patent Application Laid-Open No. 8-128301 entitled "FR
Preforms for M disks "have been proposed.

In the first technical example, a matrix metal is sprayed on a spiral surface of a spirally wound reinforcing fiber to form a thermal spray coating, thereby preventing the shape of the disk from being collapsed.

[0004]

However, the manufacturing technique of spraying the matrix metal onto the spiral surface of the reinforcing fiber requires a large amount of labor in the spraying process and tends to reduce the dimensional accuracy of the sprayed coating. Challenges remain.

[0005] The present invention is to solve such problems effectively and to achieve the following objects. To improve the dimensional accuracy of preforms for FRM and the alignment accuracy of reinforcing fibers to improve quality. Improving the manufacturability of preforms for FRM and reducing manufacturing costs. In particular, to improve the moldability when the cross-sectional shape of a composite filamentary body formed by covering a reinforcing fiber with a matrix is a perfect circle.

[0006]

Means for Solving the Problems A composite filament having a perfect circular cross section in which a reinforcing fiber is covered with a matrix is stored in a state wound around a storage spool, and is sent out from the storage spool. A technology is adopted in which the composite filament is wound in an aligned winding state by the forming spool, and a tension is applied to the composite filament by applying a brake to the rotation by tension setting means connected to the rotation system of the storage spool. Is done. A technique of arranging the shaping means near the forming spool and pressing the outer surface of the wound composite linear body to align and wind it is also used. In the case of a disk-shaped disk shaped by winding the composite striatum, a technique is employed in which adhesive is applied to a plurality of locations on the disk surface to maintain the shape of the disk-shaped disk. As the tension setting means,
A technique of applying resistance to the rotation system of the wire storage spool using a magnetic brake is applied. The displacement of the composite filament sent from the storage spool to the forming spool is detected by the optical sensor, and if the displacement occurs in the direction in which the winding diameter increases, the winding state of the composite filament is verified. Done.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of an apparatus and method for manufacturing a preform for FRM according to the present invention will be described below with reference to FIGS. In the first embodiment, the manufacturing apparatus shown in FIGS. 1 and 2 turns the composite filament W having a perfect circular cross section, in which the reinforcing fibers a shown in FIG. The technology of molding while winding is adopted. Hereinafter, the details will be described.

As shown in FIGS. 1 and 2, a manufacturing apparatus X
The storage spool 1 disposed on the support table T on the upper part of the gantry F, the forming spool 2 for winding the composite wire W sent from the storage spool 1 in an aligned winding state, and the forming spool 2 Winding drive source (winding motor) 3 for rotating, tension setting means 4 for applying a desired tension to composite filament W, shaping means 5 for assisting the aligned winding state, and transfer A device including a vibration suppressing means 6 for suppressing pulsation of the composite filament W in the middle and an optical sensor 7 for detecting a displacement of the moving composite filament W is employed. I have.

The wire storage spool 1 is rotatably mounted on a support table T by a bearing 1a. The rotation of the rotation system 1b of the wire storage spool 1 is braked to rotate the composite wire W. Tension setting means 4 for applying tension is provided.

The forming spool 2 is rotatably mounted on a support table T by a bearing 2a, and has a fixed disk 2A and an adjusting disk 2B whose intervals are set in accordance with the outer diameter of the composite linear body W. The body 2C for winding the composite filament W interposed between the fixed disk 2A and the adjustment disk 2B, and the setting of the distance between the fixed disk 2A and the adjustment disk 2B and the attachment / detachment of the adjustment disk 2B. And an adjusting screw 2b. The adjusting disk 2B is formed with a plurality of slits 2s reaching the outer edge, and the opposite surfaces of the fixed disk 2A and the adjusting disk 2B are processed with a fluororesin such as polytetrafluoroethylene to form a composite filament. The peelability of the body W is enhanced.

The winding drive source 3 includes a rotational force transmission system 3a.
And a counter (for example, a counter for counting the number of revolutions) 3b for detecting the number of revolutions of the molding spool 2 as well.

The tension setting means 4 is, for example, a magnetic brake which can adjust a torque range and set a desired value.

The shaping means 5 has a pressing roller 5b swingably mounted on a supporting table T or the like by a supporting shaft 5a, and presses the pressing roller 5b between the pressing roller 5b and the supporting table T by air. Pressure forming spool 2
Air cylinder 5 that presses in the direction of contact with body 2C
c is attached.

The vibration suppressing means 6 includes a mounting bracket 6a disposed on the support table T, an air cylinder 6b disposed on the mounting bracket 6a, and a pair having a contact force set by the air cylinder 6b. And pinch rolls 6c, 6d.
d, the composite striatum W is sandwiched by
Is suppressed and the stabilization is suppressed.

The optical sensor 7 is disposed in the middle of the transfer line of the composite filament W sent from the wire storage spool 1 to the forming spool 2 and has a light emitting element 7 which is vertically opposed.
a and the light receiving element 7b.
This is to detect whether or not a deviation has occurred in the direction in which the winding diameter increases when the winding is performed by the forming spool 2.

A method for manufacturing a preform for FRM using the manufacturing apparatus X having such a structure will be described below.

[Storing wire of the striatum] According to the technical example 1 described above, the materials of the reinforcing fibers a and the matrix b are selected, and the matrix b is supported on the surface of the reinforcing fibers a as shown in FIG. Then, a composite filament W made by coating the matrix b on the reinforcing fiber a is prepared in advance, and the composite filament W is wound around the storage spool 1. And put it in the state of storage.

[Sending out of the filament] The composite filament W stored in the wire storage spool 1 is sent out by operating the winding drive source 3, and at that time, tension setting means is used. 4 applies a resistance to the rotation system 1b of the wire storage spool 1 to apply braking and set the tension of the composite filament W.

[Suppression of pulsation of the filament] The composite filament W sent from the storage spool 1 to the forming spool 2 becomes linear due to the above-described tension setting.
It is conceivable that a large deviation occurs due to some cause. Therefore, the composite wire W between the wire storage spool 1 and the forming spool 2 is vertically held by pinch rolls 6c and 6d, which form a pair of the vibration suppressing means 6, to perform vertical positioning. With the pinch roll 6c,
A deviation is allowed in the sliding direction of the surface of 6d, and a small resistance in the deviation direction is applied to the composite filament W to remove a pulsation component or the like.

[Detection of displacement of the striatum] As shown in FIGS. 1 and 2, immediately after or near the vibration suppressing means 6, whether or not the striated composite W is displaced, It is detected whether or not the strip W is displaced in a direction in which the strip W expands outside the winding, and if an abnormality is detected, the operation is automatically stopped. When a large displacement has occurred in the composite striatum W,
The winding operation is interrupted, and the winding state of the composite filament W is verified.

[Aligned winding of filaments] When the composite filament W is wound by the forming spool 2, the gap between the fixed disk 2A and the adjustment disk 2B is set according to the diameter of the composite filament W. As shown in FIG. 4, based on the requirement that tension is applied to the composite filament W and that the cross-sectional shape of the composite filament W does not cause a difference in shape when the composite filament W rotates. Then, it will be aligned and wound. In addition, by operating the shaping means 5 and pressing the pressing roller 5b against the outer surface of the composite filament W wound around the body 2C of the forming spool 2, the composite filament W is tightly closed. And while maintaining the aligned state, it is wound up on the forming spool 2.

[Fixation of Disc-Shaped Disc] As described above, the shaped disc-shaped disc (FRM preform) D is formed by winding the composite filament W. As shown in FIG. 5, the adhesive P is applied to the formed disc-shaped disk D at a plurality of positions using the slits 2s of the adjustment disk 2B while being supported by the formed spool 2. After the applied adhesive P is dried, the disc-shaped disk D is fixed with the adhesive P at the winding part, in combination with the above-mentioned winding in the tightly aligned state. Based on the releasability, the occurrence of shape collapse is less likely to occur, and thereafter, the fixed disk 2A and the adjustment disk 2B are maintained while the shape is maintained.
And sent to the disc manufacturing process. The adhesive P has a composition that is thermally decomposed or evaporated by heating during the production of the disk.

[0023]

According to the apparatus and method for manufacturing a preform for FRM according to the present invention, the following effects can be obtained. (1) By winding a composite filament having a perfect circular cross section in which a reinforcing fiber is covered with a matrix in a state in which tension is set, in a aligned winding state by a molding spool, FR is obtained.
The dimensional accuracy of the M preform and the arrangement accuracy of the reinforcing fibers can be increased, and the quality can be improved. (2) It is possible to improve the manufacturability of the preform for FRM and reduce the manufacturing cost as compared with the prior art example 1 in which the matrix metal is sprayed on the spiral surface of the reinforcing fiber. (3) The preform for FRM can be easily formed by aligning and winding while pressing the outer surface of the wound composite filament by the shaping means. (4) Applying an adhesive to a plurality of portions of the disc to suppress the collapse of the winding shape, thereby improving the quality of the disc manufactured from the FRM preform and improving the workability of each manufacturing process. Can be done.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing a first embodiment of an apparatus and a method for manufacturing an FRM preform according to the present invention.

FIG. 2 is a plan view showing a first embodiment of an apparatus and a method for manufacturing an FRM preform according to the present invention.

FIG. 3 is a cross-sectional view of the composite filament applied in FIG. 1;

FIG. 4 is a front sectional view of a molding spool shown in FIG.

FIG. 5 is an FRM formed by the forming spool of FIG. 1;
FIG. 4 is a plan view in which a part of the preform for bonding is omitted from illustration.

[Explanation of symbols]

 X Manufacturing apparatus W Composite linear body a Reinforcing fiber b Matrix D Disc-shaped disk (FRM preform) F Mounting base T Support table 1 Storage spool 1a Bearing 1b Rotating system 2 Molded spool 2A Fixed disk 2B Adjustment disk 2C Body 2a Bearing 2b Adjusting screw 2s Slit 3 Winding drive source (winding motor) 3a Rotating force transmission system 3b Counter 4 Tension setting means 5 Shaping means 5a Support shaft 5b Press roller 5c Air cylinder 6 Vibration suppression means 6a Mounting bracket 6b Air cylinder 6c , 6d Pinch roll 7 Optical sensor 7a Light emitting element 7b Light receiving element P Adhesive

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI F02C 7/00 F02C 7/00 C

Claims (3)

[Claims] 1. A storage wire spool (1) for storing a composite filament (W) comprising a reinforcing fiber (a) covered with a matrix (b), and a composite filament delivered from the storage spool. F comprising: a forming spool (2) for winding in an aligned winding state; and tension setting means (4) connected to the rotation system of the storage spool and for applying tension to the composite filament.
RM preform manufacturing equipment. 2. A shaping means (5) arranged near the forming spool (2) to press and align the outer surface of the wound composite filament (W) to align and wind it. Item 1
An apparatus for producing the preform for FRM according to the above. 3. A composite filament (W) comprising a reinforcing fiber (a) covered with a matrix (b) is stored in a storage spool (1), and a composite filament sent out from the storage spool. The body is wound in an aligned winding state by a forming spool (2), and an adhesive (P) is applied to a plurality of portions of the disk-shaped disc (D) shaped by winding the composite striated body. A method for producing a preform for FRM, wherein the preform is maintained.