JP3239605B2 - Method for producing molded article based on composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composition formed by interlacing a plurality of yarns or fiber bundles (hereinafter simply referred to as "yarns") with a braider into a predetermined shape. The present invention relates to a method for producing a molded article based on a composition for producing a molded article such as a part used in various industrial fields by molding.

[0002]

2. Description of the Related Art Conventionally, there is no known braider capable of automatically performing composition around a mandrel having a branch portion branched at an angle of less than 90 degrees. In addition, the composition is manually performed, and a resin or the like is impregnated into the composition thus manually formed to produce a molded product based on the composition.

[0003]

As described above, 90
Since the composition into the mandrel having a branch portion branched at an angle of less than degrees is performed by hand, which requires time and labor, molded products such as manufactured parts become expensive, There are problems such as the field used is limited. In addition, since the mandrel must be designed and manufactured in consideration of the removal of the composition formed around the mandrel from the mandrel, particularly in the case of a mandrel having a branch portion branched at an angle of less than 90 degrees. Has the problem that their design and manufacture are difficult, and the manufacture of mandrels is time-consuming and expensive.

An object of the present invention is to solve the above-mentioned problems,
An object of the present invention is to provide a method for producing a molded article based on a composition having improved productivity.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention firstly aims to form a yarn with a braider.
A composition formed by interlacing, wherein the angle of the branch portion is 90 degrees or more, is set at a predetermined angle at least one angle of the branch portion is less than 90 degrees, and the set composition is molded with resin. Secondly , a yarn is wrapped around a mandrel in which the angle of the branch is 90 degrees or more.
After the composition is formed by interlacing the strips, the composition is removed from the mandrel, and then the angle of at least one branch of the composition is set to a predetermined angle of less than 90 degrees, and the set composition is made of a resin. Thirdly, the composition is formed by interlacing yarns around a mandrel having an angle of the branching portion of 90 degrees or more, and then the composition is removed from the mandrel. After setting the angle of at least one branch portion of the composition to a predetermined angle of less than 90 degrees and inserting it into a mold composed of a lower mold and an upper mold, inject resin into the mold, The resin is cured, and the composition set in the mold is molded and cured with the resin.

[0006]

Embodiments of the present invention will be described below, but the present invention is not limited to these embodiments unless it departs from the gist of the present invention.

[0007] In the following, as an example, after the composition is formed around a T-shaped mandrel in which the horizontal part and the vertical part are perpendicular to each other, the T-shaped composition is removed from the mandrel, and a part having a branch part of less than 90 degrees is formed. A method for producing a molded article based on the composition of the present invention will be described using an example of producing a letter-shaped article.

Hereinafter, as an example of forming a composition around a T-shaped mandrel, a braider BR composed of a braider body Bb and a mandrel device Bm will be described with reference to FIGS.

First, the details of the blader body Bb will be described with reference to FIG. 1 which is a front view of the blader body and FIG. 2 which is a side view thereof. In FIGS. 1 and 2 and FIG. 3 to be described later, a rectangular portion indicated by a dotted line above the bobbin carrier C does not show a thread guide portion c3 to be described later. The blader body Bb is formed in a curved upper plate U having a predetermined radius of curvature R and disposed in a substantially cylindrical machine base Fb having a horizontal axis and an opening e on one side. It comprises a bobbin carrier C traveling along a track, a driving device D for causing the bobbin carrier C to travel along the track, a yarn guiding device G, and the like.

Hereinafter, each of the above devices and members will be described. First, the blader body Bb and the bobbin carrier will be mainly described with reference to FIG. 3 which is an enlarged front view of a driving device D for causing the bobbin carrier C including the II section of FIG. A driving device D for causing C to travel along a track will be described.

As shown in FIG. 2, the curved upper plate U is disposed at a predetermined interval on a substantially cylindrical machine frame f1 disposed in a substantially cylindrical machine base Fb. A known track is bored in the upper plate U in the circumferential direction, which is secured by appropriate fixing members f2 and f2 '. f3 is a hollow bolt attached to the machine frame f1 by a nut f4. A gear d1 is fitted to the hollow bolt f3 via a suitable bearing f5. A bobbin carrier described later is mounted on the gear d1 on the upper surface. An impeller d2 having a groove into which the engagement shaft c1 of C is fitted is fixed so as to be able to rotate integrally with the gear d1. In addition,
y is rewound from the bobbin carrier C disposed substantially horizontally on the frame Fb ′ of the substantially cylindrical machine base Fb,
b, is guided in a substantially right angle direction by a guide roller f6 attached to the mandrel m, and then inserted into the hollow bolt f3, and then toward the composition point P on the mandrel m. This is referred to as "yarn for yarn").

The gear d is driven by a suitable driving means such as a motor.
By rotating the wheel 1 to rotate the impeller d2,
The bobbin carrier C is configured to move along an orbit by moving an engagement shaft c1 of the bobbin carrier C fitted in a groove formed in the impeller d2. By driving the bobbin carrier C along the track formed in the curved upper plate U as described above, a large number of yarns Y are formed.
To form compositions on mandrels m of various shapes. If necessary, a bobbin carrier C disposed in a substantially horizontal state on a frame Fb ′ of a machine base Fb can be used to form a medium yarn. The yarn y is entangled with the yarn Y that is unwound from the bobbin carrier C traveling along the track and forms a composition.

As shown in FIGS. 1 and 2, a bobbin carrier C is disposed along a track formed on a peripheral surface of a curved upper plate U, and is mounted on the bobbin carrier C. The yarn Y pulled out from the set bobbin in the axial direction of the bobbin is configured to gather at substantially the center of the curved upper plate U. The position of the mandrel m is controlled such that the composition point P of the composition formed on the mandrel m attached to the mandrel device Bm described later is located at the center of the curved upper plate U. You.

Next, the bobbin carrier C will be described with reference to FIG. 4 which is a front view of the bobbin carrier C. In FIG. 4, c2 is an upper flange, and the upper flange c
2, a mast c4 having a U-shaped cross section and a spindle c5 having a thread guide portion c3 rotatably disposed at the distal end thereof are provided upright. A bobbin c6 around which the yarn Y is wound is inserted into the spindle c5, and a flyer c8 having a bearing c7 is rotatably fitted to the tip of the spindle c5.

A not-shown slit extending in the vertical direction is provided at the tip of the spindle c5, and a pair of hook members c9, c having a substantially triangular tip is provided in the slit.
9 'is arranged, and the lower ends of the hook members c9, c9' are pivotally supported by a shaft (not shown) attached to the spindle c5. The hook members c9 and c9 'are constantly urged in directions away from each other by an elastic member such as a compression spring disposed between the hook members c9 and c9', and the bobbin c6 or the flyer c8 is hooked by the hook members c9 and c9 '.
, The hook members c9 and c9 'rotate in a direction approaching each other, and the bobbin c6 or the flyer c8 can be mounted on the spindle c5. Bobbin c6 or flyer c8 is spindle c5
When the hook members c9 and c9 'are attached to the bobbin c, the hook members c9 and c9' expand in the directions away from each other.
6 or the flyer c8 is prevented from falling out of the spindle c5.

C6 'is a cylindrical bobbin cover,
It is attached to the upper flange c2. When the bobbin carrier C is inclined or inverted, the cylindrical bobbin cover c6 'is pulled out or hangs down from the yarn Y wound on the bobbin c6, and wound around the adjacent bobbin. This prevents troubles such as being entangled with the thread or the other member such as the blader body Bb.

On the substantially U-shaped frame c10 of the thread guide portion c3 disposed at the end of the mast c4, a tension washer c11 and a guide roller c1 are sequentially provided from below.
2, a slack removing member c13 and a guide roller c14 are arranged. A guide c15 having a guide roller c15 'is attached to the tip of the slack removing member c13, and the other end of the slack removing member c13 is connected to a coil spring c.
One end of the coil spring c16 is attached.
Is attached to the frame c10. The slack removing member c13 is pivotally supported on the frame c10 via a shaft member c17 'attached to a bearing member c17 disposed on the frame c10, and is always counterclockwise in FIG. 4 by the coil spring c16. It is urged to rotate. Therefore, when the yarn Y unwound from the bobbin c6 becomes slack, the slack removing member c13 rotates counterclockwise around the shaft member c17 'in FIG. 4 to absorb the slack of the yarn Y. It is configured as follows.

The frame c10 has through holes c18 and c19 through which the thread Y is inserted, adjacent to the tension washer c11 and the guide roller c14. The substantially U-shaped frame c10 is configured to be rotatable clockwise about an axis c20 disposed on the mast c4. When the bobbin c6 or the flyer c8 is mounted on the spindle c5, the frame c10 is By rotating c10 clockwise, a space is created above the spindle c5, and the bobbin c6 or the flyer c8 is mounted on the spindle c5. After attaching the bobbin c6 or the flyer c8 to the spindle c5, the frame c10 is rotated counterclockwise to be arranged at a position as shown in FIG. The frame c10 is configured to be held at the position shown in FIG. 4 unless the lock is released by an appropriate lock.

In FIG. 4, c21 is a substantially elliptical lower flange, and c22 is an upper flange c2 and a lower flange c2 which are fitted and slid on a track formed in the upper plate U.
It is a guide portion disposed between the two. Bobbin carrier C
Is upper plate U by upper flange c2 and lower flange c21.
, So as to travel along the track while being held substantially perpendicular to the upper plate U.

Next, details of the yarn guiding device G will be described with reference to FIG. The yarn guiding device G includes a frame g1 ′ extending substantially horizontally from the intermediate frame Fb ″ of the machine base Fb.
The first thread guide member g1 attached to the floor member F1 and the floor member F disposed at a predetermined distance from the first thread guide member g1
The second thread guide member g2 is attached to the leading end of a frame g2 'standing upright at r.

The yarn guiding device G separates the yarn Y that swings with the lateral movement of the bobbin carrier C running meandering along the track formed in the upper plate U at a predetermined interval. The composition point P is guided by the disposed first thread guide member g1 and the second thread guide member g2, and the swing thereof is regulated to maintain the composition point P at a substantially constant position. By maintaining the yarn Y at a substantially constant position, a stable composition can be realized without the yarn Y to be formed being entangled in an irregular state in the vicinity of the composition point P. Therefore, the shape of the formed composition is uniform and stable. A composition can be produced. In addition, when the mandrel m is moved rightward in FIG. 2 after the completion of the composition by arranging the yarn guide device G, a large number of the compositions formed by the second yarn guide member g2 continue. Of the yarn Y
And a yarn bundle Y ″ (shown in FIG. 8 (f) described later) by a suitable cutting device (not shown).
Can be effectively cut.

Next, the mandrel device Bm will be described mainly with reference to FIG. 5 which is a side view of the mandrel device Bm and FIG. 6 which is a schematic enlarged plan view of the mandrel moving device M. The machine base Fm of the mandrel device Bm is disposed on the front surface of the blader body Bb, and the upper surface of the machine base Fm is provided with a curved upper plate U on which a track disposed in the blader body Bb is formed. A horizontal moving frame b1 that can move horizontally toward the approximate center is arranged. A concave portion b2 is provided on both side walls of the horizontal moving frame b1, and a guide roller b3 pivotally mounted on a horizontal axis disposed on the machine base Fm as shown in FIG. 5 in the concave portion b2. , B3 'and guide rollers b4, b4' pivotally mounted on a vertical axis.

A rack b5 is attached to the lower part of the horizontal moving frame b1 in parallel with the horizontal moving frame b1.
5, a pinion b7 attached to the output shaft b6 'of a forward / reverse rotatable motor b6 attached to the machine base Fm is screwed. Therefore, the pinion b7 is driven to rotate by driving the motor b6 that can rotate forward and reverse, and the rack b5 screwed with the pinion b7 is driven horizontally to guide the guide rollers b3, b3 ′ and the guide rollers b4, b4. The horizontal movement frame b1 is configured to move horizontally along ′.

A fan-shaped frame b8 is attached to the tip of the horizontal moving frame b1, and a motor b9 that can rotate forward and reverse is disposed on the fan-shaped frame b8. A pinion b1 is connected to the output shaft b9 'of the motor b9 which can rotate forward and reverse.
0 is attached. The tip of the horizontal moving frame b1 and the fan-shaped frame b8 have a horizontal axis b as shown in FIG.
11 and b12 are attached, and the horizontal axes b11 and b12
Have guide rollers b13 and b14 attached thereto, respectively, and the fan-shaped frame b8 has a vertical axis b15.
And a guide roller b is provided on the vertical axis b15.
16 are attached. An appropriate number of such guide rollers b13, b14, b16 are arranged along the longitudinal direction of the fan-shaped frame b8, and a fan-shaped moving member b17 to be described later.
Is stably held.

As shown in FIG. 5, the fan-shaped moving member b17 is formed of a frame member having a substantially rectangular cross section, and an appropriate number of members are provided in the horizontal or vertical direction from the outer wall of the fan-shaped moving member b17. , The rail members b18, b19, and b20 to which the guide rollers b13, b14, and b16 arranged on the tip of the horizontal moving frame b1 and the fan-shaped frame b8 are formed. Further, a fan-shaped rack b22 is attached to a vertical axis b21 hanging down from a lower side wall of the fan-shaped moving member b17, and the fan-shaped rack b2 is attached.
Reference numeral 2 denotes an output shaft b of the motor b9 capable of rotating forward and reverse as described above.
The pinion b10 attached to 9 'is configured to be screwed. Therefore, the pinion b10 is driven to rotate by the rotation of the motor b9 which can be rotated forward and backward, and the pinion b10 is rotated.
By driving the fan-shaped rack b22 screwed into the fan-shaped moving member b17, the fan-shaped moving member b17 is moved to the front end of the horizontal moving frame b1 fitted to the rail members b18, b19, and b20 of the fan-shaped moving member b17. The guide rollers b13, b14, and b16 arranged on the fan-shaped frame b8 move horizontally while maintaining the horizontal state.

As shown in FIG. 6, pulleys b23 and b23 'are provided at both ends in the longitudinal direction of the fan-shaped moving member b17.
Is rotatably mounted, and an endless belt b24 is stretched between the pulley b23 and the pulley b23 '. Then, the endless belt b24 is located at one place in FIG.
As shown in the figure, the frame is fixed to a frame b25 'attached to a vertical shaft b25 erected at the distal end of the horizontal moving frame b1. It is fixed to the member b26.

Next, the mandrel supporting and moving member b26 will be described. As shown in FIG.
As shown in the figure, a vertical axis b28 having a guide roller b27 attached to the tip and a guide roller b2 attached to the tip
9 is attached, and the guide roller b27, b29 is provided with the above-mentioned fan-shaped moving member b1.
7 are fitted to rail members b31 and b32 formed by an appropriate number of edges projecting in the horizontal or vertical direction from the outer wall of the mandrel 7, and therefore, the mandrel supporting and moving member b26
Is configured to be able to move horizontally along the rail members b31 and b32 of the fan-shaped moving member b17. The guide rollers b27 and b29 are stably held by the rail members b31 and b32 of the fan-shaped moving member b17.
An appropriate number are arranged on the mandrel support moving member b26.

A vertical frame b33 is hung from the mandrel supporting and moving member b26.
At 33, one endless belt b24 is fixed as described above. In FIG. 6, the point X is a vertical axis b on which the endless belt b24 stands upright at the tip of the horizontal moving frame b1.
The point Z indicates that the endless belt b24 is fixed to the vertical frame b33 of the mandrel support moving member b26.

A support rod b34 is detachably and slidably mounted on support frames b35 and b35 'erected on the upper part of the mandrel support moving member b26. A plate b34 'is attached. The support plate b34 'is provided with a forward / reverse rotatable motor b36.
A mandrel m is attached to the output shaft 36 via a suitable gripping member (not shown) or directly to the output shaft. Therefore, the mandrel m can be appropriately rotated in the forward and reverse directions by appropriately driving the motor b36 that can rotate forward and reverse.

In the following, a mandrel device Bm for controlling the movement of a mandrel m, shown by way of example as a T-shape,
Will be described. The horizontal movement of the horizontal moving frame b1 for moving the mandrel m in the horizontal direction so as to approach or separate from the curved upper plate U in which the track disposed in the blader body Bb is formed is as described above. As described above, the pinion b7 is rotated by driving the motor b6 that can rotate forward and reverse, and the rack b5 screwed with the pinion b7 is driven horizontally.

Next, the movement of the mandrel m in a direction substantially perpendicular to the horizontal movement approaching or leaving the curved upper plate U will be described. When the pinion b10 is rotated in the counterclockwise direction in FIG. 6 from the state shown by the two-dot chain line in FIG. 6 by the rotation of the motor b9 capable of normal and reverse rotation, the fan-shaped rack b22 screwed to the pinion b10. Is driven, and the fan-shaped moving member b17 moves downward in FIG.

When the fan-shaped moving member b17 moves downward and the pulley b23 attached to the fan-shaped moving member b17 also moves downward, the endless belt b24 is fixed to the tip of the horizontal moving frame b1 at the point X. Therefore, the endless belt b24 on the opposite side of the pulley b23 is pulled downward in FIG. 6, and the endless belt b24 is rotated counterclockwise. Since the mandrel supporting / moving member b26 is fixed to the endless belt b24 at the point Z, the mandrel supporting / moving member b26 also moves downward in FIG. 6 by rotating the endless belt b24 in the counterclockwise direction. At this time, the pulley b
The mandrel supporting and moving member b26 moves twice as much as the moving amount of the mandrel 23, and the mandrel supporting and moving member 26 can be moved quickly.

Further, when the pinion b10 is rotated counterclockwise in FIG. 6 by the rotation of the motor b9 which can rotate forward and reverse, the fan type rack b22 screwed to the pinion b10 is driven, and the fan type moving member is rotated. The b17 moves further downward in FIG. 6 and the mandrel support moving member b26
Is configured to be able to rotate to the lowest position shown by the solid line in FIG. Further, in order to move the mandrel support moving member b26 upward from the lowest position shown by the solid line, the motor b9 that can be rotated forward and backward is rotated in reverse to rotate the pinion b10 clockwise in FIG.

Since the mandrel m can be rotated by the forward / reverse rotatable motor b36, when the forward / reverse rotatable motor b36 is not used, as described above, The position of the mandrel m can be controlled one-dimensionally or two-dimensionally. The position of the mandrel m can be controlled three-dimensionally by appropriately driving the motor b36 capable of rotating forward and reverse to rotate the mandrel m forward and backward appropriately. can do.

Next, the blader body Bb as described above
A composition step of forming a composition around a T-shaped mandrel by a braider BR including a mandrel device Bm will be described with reference to FIGS. 7 and 8 showing the composition step.

(A) As shown in FIG. 7A, the end portion Y 'of the bundle of yarns in which a large number of yarns Y drawn out from the bobbin placed on the bobbin carrier C are converged, as shown in FIG. The mandrel m is arranged at one end (1) of the mandrel m, that is, at the composition point P. For convenience of explanation, a triangular mark (△) is attached to a position where the mandrel m is gripped by the mandrel moving device M, and arrows indicate a method of moving the mandrel m. (B) From this state, the blader body Bb is driven to drive the bobbin carrier C along the track to start the composition, and as shown in FIG. 7B, the composition is directed toward the joint j of the mandrel m. To perform the composition. (C) After the composition up to the joint j of the mandrel m, FIG.
As shown in FIG. 7C, the gripping position of the mandrel m is rotated counterclockwise to bring it into the state shown in FIG. 7D. From this state, as shown in FIG. 7E, the branch part m1 of the mandrel m is formed. (D) As shown in FIG. 7 (e), the mandrel m
When the composition up to the end of the branch m1 is stopped, the driving of the blader body Bb is stopped, and as shown in FIG. 7F, one end (1) of the mandrel m is removed from the mandrel gripping device. The mandrel m is rotated 180 degrees, and one end (2) of the mandrel m opposite to one end (1) is attached to the mandrel holding device.

(E) After that, the driving of the blader body Bb is resumed, and as shown in FIG. 8A, the mandrel m is folded back from the end of the branch portion m1, and again the branch portion m
Composition 1 (F) After the composition up to the joint j of the mandrel m, FIG.
As shown in FIG. 8B, the joint j of the mandrel m is formed while rotating the mandrel m clockwise, and the mandrel m is further rotated to the position shown in FIG. Then, as shown in FIG.
The composition is performed up to the end on the grip side of the mandrel m.

(G) Next, as shown in FIG. 8 (e), the composition point P is shifted in the direction of the joint j, and further, beyond the joint j, one end (1) of the mandrel m ), A two-layer composition is formed around the mandrel m. (H) Thereafter, as shown in FIG. 8 (f), the drive of the blader main body Bb is continued for a predetermined period from the start of the separation of the mandrel m from the blader main body Bb,
By continuing the running of the bobbin carrier C, a yarn bundle Y ″ is formed in a state in which a number of yarns Y connected to the composed composition are entangled. At this time, at the start of the composition, one end of the mandrel m ( The end portion Y ′ of the yarn bundle Y ″ arranged in 1) is taken under the second layer composition in the composition process of the second layer composition, so that the end portion of the yarn bundle Y ″ Y '
Is not located on the surface of the composition, so that the end Y ′ of the yarn bundle Y ″ does not unravel, and the end Y ′ of the yarn bundle Y ″ is Since there is no position, a composition having a good appearance can be formed. Thereafter, the yarn bundle Y ″ is cut by a suitable cutting device (not shown), and the mandrel m having the T-shaped composition is removed from the mandrel device Bm.

As shown in FIG. 9 showing the disassembly order of the mandrel m, the branch part m1 attached to the center of the main part m2 of the mandrel m by a suitable fixing means such as a screw m3 is screwed. By removing m3, the mandrel m is disassembled, the mandrel m is disassembled, and the branch m1 and the main portion m2 of the mandrel m are extracted from the composition H. The mandrel m can be made of a synthetic resin that can be dissolved with a suitable solvent, and after the composition is formed around the mandrel m, the mandrel m can be dissolved with a solvent to remove the composition from the mandrel m.

The means for molding the T-shaped composition H thus extracted from the mandrel m into a T-shaped molded article having a branch portion of less than 90 degrees will be described with reference to FIG.

Reference numeral n1 denotes a lower mold frame in which a half-shaped concave portion n2 is formed, and n3 denotes an upper mold frame in which a half-shaped concave portion n4 is formed. Further, n5 is a lower mold frame n1 and an upper mold frame n which are made of a resin such as a thermosetting resin.
This is a resin injection hole for injecting into a 3 -shaped void portion.

As shown in FIG. 10, a suitable core h is placed in a T-shaped composition H extracted from the mandrel m.
1, h2 is inserted, and the T-shaped composition H is formed in the shape of a triangle, and then the composition H formed in the shape of a triangle is attached to the concave portion n2 of the lower mold n1, and then placed thereon. The upper mold frame n3 is joined, and thereafter, a thermosetting resin or the like is injected from the resin injection hole n5 to impregnate the composition H with the resin. After the impregnation of the resin is completed, the lower mold n1 and the upper mold n3 are heated to heat the resin-shaped composition H impregnated with the resin taken out from the lower mold n1 and the upper mold n3. By doing so, the resin is cured to produce a molded article based on the composition.

As described above, the angle of the branch m1 is 90
After composition of the composition H around the mandrel m which is not less than
The composition H is removed from the mandrel m, and then the angle of the branch part m1 of the composition H is set to a predetermined angle of less than 90 degrees, and the set composition H is molded and cured with a resin. Since a molded article based on H is produced, the productivity of a molded article based on the composition H having a branch portion m1 branched at an angle of less than 90 degrees is improved, and such a molded article is formed. The cost of goods can be reduced. Further, since the angle of the branch part m1 of the mandrel m is 90 degrees or more, the design and manufacture of the mandrel m are facilitated.

In the above description, the T-shaped composition H prepared using a T-shaped mandrel changes
Although the embodiment in which the T-shaped molded article having a branch portion of less than 0 degrees is manufactured has been described, a molding having a branch portion of less than 90 degrees is formed from a cross-shaped composition H formed using a cross-shaped mandrel. Product, or from a L-shaped composition H formed using an L-shaped mandrel, a V-shaped molded product having a branching portion of less than 90 degrees, or a tetrapod having a three-dimensional structure From the tetrapot-shaped composition H formed using a shaped mandrel, a molded product having a branch portion of less than 90 degrees is produced, or a molded product having a branch portion of less than 90 degrees is produced from a mandrel of various shapes. can do.

[0045]

Since the present invention is constructed as described above, it has the following effects. 90
The productivity of a molded article based on a composition having a branch portion branched at an angle of less than degree is improved, and the cost of such a molded article can be reduced, and the composition is formed around the molded article. Since the angle of the branch portion of the mandrel is 90 degrees or more, the design and manufacture of the mandrel become easy.

[Brief description of the drawings]

FIG. 1 is a front view of a braider as an example for forming a composition.

FIG. 2 is a side view of the blader shown in FIG. 1;

FIG. 3 is an enlarged front view of a driving device for causing the bobbin carrier including the section II of FIG. 2 to travel along a track.

FIG. 4 is a front view of the bobbin carrier.

FIG. 5 is a side view of the mandrel moving device.

FIG. 6 is a partially enlarged plan view of the mandrel moving device.

FIG. 7 is a process chart showing a composition order of a composition in a T-shaped mandrel.

FIG. 8 is a process drawing following FIG. 7 showing the composition order of the composition in the T-shaped mandrel.

FIG. 9 is a part view of the mandrel for showing the disassembly order of the mandrel.

FIG. 10 is a schematic perspective view showing means for molding a composition.

[Explanation of symbols]

 BR: Braider Bb: Braider body Bm: Mandrel device C: Bobbin carrier D:・ ・ ・ ・ ・ ・ ・ ・ ・ Drive device Fm ・ ・ ・ ・ ・ ・ ・ ・ ・ Machine stand G ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Thread guide device H ・ ・ ・ ・ ・ ・ ・ ・ ・ Composition Body M: Mandrel moving device U: Upper plate m: Mandrel n1 Lower mold frame n3 ........... Upper mold frame

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B29C 70/00-70/88

Claims (3)

(57) [Claims] 1. A composition obtained by interlacing yarns with a braider.
Setting the composition in which the angle of the branch portion is 90 degrees or more to a predetermined angle in which at least one angle of the branch portion is less than 90 degrees, and molding and hardening the set composition with a resin. A method for producing a molded article based on the composition characterized by the following. 2. After the composition is formed by interlacing a yarn around a mandrel having an angle of 90 ° or more in the branch, the composition is removed from the mandrel, and then the composition is removed from at least one branch of the composition. A method for producing a molded article based on a composition, wherein the angle is set to a predetermined angle of less than 90 degrees, and the set composition is molded and cured with a resin. 3. After the composition is formed by interlacing yarns around a mandrel having an angle of 90 ° or more in the branch, the composition is removed from the mandrel, and then at least one branch of the composition is formed. After setting the angle at a predetermined angle of less than 90 degrees and inserting it into a mold composed of a lower mold and an upper mold, inject resin into the mold, and then cure the resin to form the mold. A method for producing a molded article based on a composition, wherein the set composition is molded and cured with a resin.