JPH07256770A - Manufacture of molded product consisting basically of composition - Google Patents

Abstract

PURPOSE:To contrive a cost reduction by improving productivity of a molded product, by a method wherein a composition whose angle of a remification part is specified is set up at a specific angle and the set composition is made to be molded and hardened with a resin. CONSTITUTION:After composing a composition H on the circumference of a mandrel m whose angle of a ramification part m1 is at least 90 derees, the composition H is removed from the mandrel m. Then the angle of the ramification part m1 of the composition H is set up at a fixed angle of less than 90 degrees, the set composition H is made be molded and hardened with a resin and molded product consisting basically of the composition H is manufactured. Hereby, productivety of the molded product consisting basically of the composition H possessing the ramification part m1 ramifying at the angle of less than 90 degrees is improved and a cost of the molded product can be reduced. Since the angle of the remification part m1 of the mandrel m is at least 90 degrees, a design and manufacturing of the mandrel m become easy.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides 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, which is molded to produce a molded article such as a part used in various industrial fields.

[0002]

2. Description of the Related Art Conventionally, there has been no known braider capable of automatically forming a composition around a mandrel having a branch portion branched at an angle of less than 90 degrees. The composition is manually performed, and a composition or the like is impregnated with a resin or the like to produce a molded article based on the composition.

[0003]

As described above, 90
Since the composition to the mandrel having the branched portion that is branched at an angle of less than 10 degrees is performed manually by requiring time and labor, the molded article such as the produced component becomes expensive, There are problems such as limited fields of use. 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 it is difficult to design and manufacture, and that it requires considerable time and cost to manufacture the mandrel.

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

[0005]

In order to achieve the above-mentioned object, the present invention firstly provides a composition in which a branch angle is 90 degrees or more, and at least one branch angle is 9 degrees.
The composition is set at a predetermined angle of less than 0 degree, and the set composition is molded and cured with a resin. Secondly, the composition is formed around a mandrel having a branching angle of 90 degrees or more. After composition, remove the composition from the mandrel,
The angle of at least one bifurcation of the composition is then 90
The composition is set at a predetermined angle of less than 10 degrees, and the set composition is molded and cured with a resin. Thirdly, the composition is formed around a mandrel having a branch angle of 90 degrees or more. After that, remove the composition from the mandrel,
The angle of at least one bifurcation of the composition is then 90
After being set to a predetermined angle of less than 10 degrees and inserted into a mold consisting of a lower mold and an upper mold, a resin was injected into the mold, and then the resin was cured and set in the mold. The composition is molded and cured with a resin.

[0006]

EXAMPLES Examples of the present invention will be described below, but the present invention is not limited to these examples as long as the gist of the present invention is not exceeded.

In the following, as an example, after a composition is formed around a T-shaped mandrel having a horizontal portion and a vertical portion orthogonal to each other, the T-shaped composition is removed from the mandrel, and a T-shaped mandrel having a branch portion 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 character-shaped article.

A braider BR including a braider body Bb and a mandrel device Bm will be described below as an example of forming a composition around a T-shaped mandrel with reference to FIGS. 1 to 6.

First, the details of the braider body Bb will be described with reference to FIG. 1 which is a front view of the braider body and FIG. 2 which is a side view thereof. In addition, in FIGS. 1 and 2 and FIG. 3 described later, the rectangular portion shown by the dotted line above the bobbin carrier C is shown by omitting the yarn guide portion c3 described later. The braider body Bb is formed in the curved upper plate U and the upper plate U having a predetermined radius of curvature R, which is arranged in a substantially cylindrical machine base Fb having a horizontal axis and an opening e on one side. The bobbin carrier C traveling along the track, the drive device D for traveling the bobbin carrier C along the track, the yarn guide device G, and the like.

The above-mentioned devices and members will be described below. First, mainly using FIG. 3 which is an enlarged front view of the drive device D for causing the bobbin carrier C including the I-I cross section of FIGS. 2 and 2 to travel along the track, the braider body Bb and the bobbin carrier are used. A drive device D for causing C to travel along the track will be described.

As shown in FIG. 2, the curved upper plate U is arranged at a predetermined interval in a substantially cylindrical machine frame f1 arranged in a substantially cylindrical machine stand Fb. It is attached by appropriate fixing members f2 and f2 ', and a known track is formed in the upper plate U in the circumferential direction. A hollow bolt f3 is attached to the machine frame f1 by a nut f4. A gear d1 is fitted to the hollow bolt f3 via an appropriate bearing f5. The gear d1 has a bobbin carrier which will be described later on its upper surface. An impeller d2 having a groove into which the engagement shaft c1 of C is fitted is fixed so as to rotate integrally with the gear d1. In addition,
y is unwound from the bobbin carrier C arranged substantially horizontally in the frame Fb ′ of the machine stand Fb having a substantially cylindrical shape,
After being guided by the guide roller f6 attached to b at a substantially right angle direction and inserted into the hollow bolt f3, the yarn for the middle thread or the reinforcing thread (hereinafter, simply referred to as "medium") toward the composition point P on the mandrel m. It is referred to as "thread for yarn").

The gear d is driven by a suitable driving means such as a motor.
By rotating 1 to rotate the impeller d2,
The engagement shaft c1 of the bobbin carrier C fitted in the groove formed in the impeller d2 is moved to move the bobbin carrier C along the track. As described above, by moving the bobbin carrier C along the track formed in the curved upper plate U, a large number of yarns Y are formed.
To form the composition on the mandrel m of various shapes, and, if necessary, from the bobbin carrier C arranged in a substantially horizontal shape on the frame Fb ′ of the machine base Fb to the yarn for middle thread. The yarn y is unwound from the bobbin carrier C traveling along the track to be entangled with the yarn Y to form a composition.

As shown in FIGS. 1 and 2, the bobbin carrier C is arranged along the track formed on the peripheral surface of the curved upper plate U and is placed on the bobbin carrier C. The yarns Y drawn out from the formed bobbin in the axial direction of the bobbin are configured to gather at the substantially center of the curved upper plate U. The position of the mandrel m is controlled so 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. It

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 in which a yarn guide portion c3 is rotatably arranged at the tip end are provided upright. A bobbin c6 around which the yarn Y is wound is inserted and attached to the spindle c5, and a fryer c8 having a bearing c7 is rotatably fitted to the tip end of the spindle c5.

A slit (not shown) extending in the vertical direction is provided at the tip of the spindle c5, and a pair of hook members c9, c whose tip is substantially triangular 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, c9 'are constantly urged in directions away from each other by an elastic member such as a compression spring arranged between the hook members c9, c9', and the bobbin c6 or the flyer c8 is hooked on the hook members c9, c9 '.
The hook members c9, c9 'are rotated in a direction in which they approach each other when they are inserted into the bobbin c6 or the flyer c8 so that they can be mounted on the spindle c5. Bobbin c6 or flyer c8 is spindle c5
When mounted on the bobbin c, the hook members c9, c9 'are expanded in a direction in which they are separated from each other by an elastic member such as a compression spring.
6 or the fryer c8 is configured so as not to come 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 tilted or positioned upside down, the cylindrical bobbin cover c6 'pulls out or hangs down the yarn Y wound on the bobbin c6 and winds it on the adjacent bobbin. This is to prevent troubles such as being entangled with the thread that is formed or entangled with other members such as the braider body Bb.

A tension washer c11 and a guide roller c1 are arranged in this order from the bottom on the substantially U-shaped frame c10 of the yarn guide c3 arranged at the tip of the mast c4.
2. A slack eliminating member c13 and a guide roller c14 are arranged. A guide portion c15 having a guide roller c15 'is attached to the tip of the slack eliminating member c13, and the other end of the slack eliminating member c13 has a coil spring c.
One end of 16 is attached, and the coil spring c16
The other end of is attached to the frame c10. The slack eliminating member c13 is pivotally supported on the frame c10 via a shaft member c17 ′ attached to a bearing member c17 arranged on the frame c10, and is always counterclockwise in FIG. 4 by a coil spring c16. It is biased to rotate. Therefore, when the yarn Y unwound from the bobbin c6 becomes loose, the slack eliminating member c13 rotates counterclockwise around the shaft member c17 'in FIG. 4 to absorb the looseness of the yarn Y. Is configured.

Further, adjacent to the tension washer c11 and the guide roller c14, through holes c18 and c19 through which the yarn Y is inserted are formed in the frame c10. Further, the substantially U-shaped frame c10 is configured to be rotatable clockwise about an axis c20 arranged on the mast c4. When the bobbin c6 or the fryer 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 mounting the bobbin c6 or the fryer c8 on the spindle c5, the frame c10 is rotated counterclockwise and arranged at the position shown in FIG. Further, the frame c10 is configured to be held in the position shown in FIG. 4 unless the lock means is released by an appropriate lock means.

In FIG. 4, c21 is a substantially elliptical lower flange, and c22 is an upper flange c2 and a lower flange c2 that are slidably fitted into a track formed in the upper plate U.
It is a guide portion arranged between the two. Bobbin carrier C
Is the upper plate U due to the upper flange c2 and the lower flange c21.
By being sandwiched between the upper plate U and the upper plate U, it is configured to travel along the track while being held substantially vertically.

Next, the yarn guide device G will be described in detail with reference to FIG. The yarn guide device G includes a frame g1 ′ extending in a substantially horizontal direction from an intermediate frame Fb ″ of the machine base Fb.
Attached to the first yarn guide member g1 and a floor member F disposed at a predetermined distance from the first yarn guide member g1.
It is composed of a second yarn guide member g2 attached to the tip of a frame g2 'which is erected on r.

The yarn guide device G is provided with a predetermined interval between the yarns Y which sway along with the lateral movement of the bobbin carrier C, which runs while meandering along an orbit formed in the upper plate U. The composition point P is maintained at a substantially constant position by being guided by the first yarn guide member g1 and the second yarn guide member g2 which are arranged, and by controlling the swing thereof. By maintaining it at a substantially constant position, a stable composition can be realized without the yarn Y to be composed being entangled in an irregular state near the composition point P. Therefore, the shape of the composed composition is uniform and stable. The composition can be manufactured. Further, by disposing the yarn guide device G, when the mandrel m is moved to the right in FIG. 2 after the composition is completed, a large number of yarns connected to the composition formed by the second yarn guide member g2 are arranged. The yarn Y of the yarn bundle Y '
As a yarn bundle Y ″ (shown in FIG. 8F 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 arranged on the front surface of the braider body Bb, and on the upper part of the machine base Fm, a curved upper plate U having a track arranged in the braider body Bb is bored. A horizontal movement frame b1 that is horizontally movable toward the substantial center is arranged. Recesses b2 are provided on both side walls of the horizontal movement frame b1, and in the recesses b2, as shown in FIG. 5, a guide roller b3 pivotally attached to a horizontal shaft arranged at the upper part of the machine base Fm. , B3 'and guide rollers b4, b4' pivotally mounted on the vertical shaft are fitted.

A rack b5 is attached to the lower part of the horizontal moving frame b1 in parallel with the horizontal moving frame b1.
A pinion b7 attached to an output shaft b6 'of a motor b6 attached to the machine base Fm and capable of rotating in the normal and reverse directions is screwed to the unit 5. Therefore, the pinion b7 is rotationally driven by driving the motor b6 that can rotate in the normal and reverse directions, and the rack b5 screwed with the pinion b7 is horizontally driven to guide the guide rollers b3, b3 'and the guide rollers b4, b4. It is configured to horizontally move the horizontal moving frame b1 along the line.

A fan-shaped frame b8 is attached to the tip of the horizontal moving frame b1, and a motor b9 capable of rotating in the normal and reverse directions is arranged on the fan-shaped frame b8. Further, the pinion b1 is attached to the output shaft b9 ′ of the motor b9 capable of rotating in the forward and reverse directions.
0 is attached. As shown in FIG. 5, the horizontal axis b is attached to the tip of the horizontal moving frame b1 and the fan-shaped frame b8.
11 and b12 are attached, and horizontal axes b11 and b12
Guide rollers b13 and b14 are attached to the fan-shaped frame b8, and a vertical axis b15 is attached to the fan-shaped frame b8.
Is installed upright, and the vertical shaft b15 has a guide roller b.
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 configured to be stably held.

As shown in FIG. 5, the fan-shaped moving member b17 is composed of a frame member having a substantially rectangular cross section, and an appropriate number of the fan-shaped moving member b17 can be arranged horizontally or vertically from the outer wall of the fan-shaped moving member b17. By projecting the edge portion of the rail member, the rail members b18, b19, b20 to which the guide rollers b13, b14, b16 arranged on the tip end of the horizontal moving frame b1 and the fan-shaped frame b8 described above are fitted are formed. Further, a fan-shaped rack b22 is attached to the vertical shaft b21 hanging from the lower side wall of the fan-shaped moving member b17.
2 is an output shaft b of the motor b9 capable of rotating in the forward and reverse directions described above.
The pinion b10 attached to 9'is screwed. Therefore, the pinion b10 is rotationally driven by the rotation of the motor b9 capable of rotating in the normal and reverse directions, and the pinion b10 is rotated.
By driving the fan-shaped rack b22 that is screwed into the fan-shaped moving member b17, the fan-shaped moving member b17 is fitted to the rail members b18, b19, and b20 of the fan-shaped moving member b17. The guide rollers b13, b14, b16 arranged on the fan-shaped frame b8 are moved horizontally while being held in a horizontal state.

As shown in FIG. 6, pulleys b23 and b23 'are provided at both longitudinal ends of the fan-shaped moving member b17.
Is rotatably attached, and an endless belt b24 is stretched between the pulley b23 and the pulley b23 '. The endless belt b24 is shown in FIG.
As shown in FIG. 5, the horizontal movement frame b1 is fixed to a frame b25 'attached to a vertical shaft b25 that is erected at the tip of the horizontal movement frame b1. It is fixed to the member b26.

Next, the mandrel support moving member b26 will be described. As shown in FIG.
, A vertical shaft b28 having a guide roller b27 attached to the tip and a guide roller b2 attached to the tip.
The horizontal shaft b30 to which 9 is attached is arranged, and the guide rollers b27 and b29 are the above-mentioned fan-shaped moving member b1.
7 are fitted on rail members b31, b32 formed by an appropriate number of edges protruding in the horizontal or vertical direction from the outer wall of the mandrel 7, and therefore the mandrel support moving member b26.
Is configured to be horizontally movable along the rail members b31 and b32 of the fan-shaped moving member b17. The guide rollers b27, b29 are stably held by the rail members b31, b32 of the fan-shaped moving member b17.
An appropriate number of mandrel support moving members b26 are arranged.

A vertical frame b33 is hung on the mandrel support moving member b26.
One portion of the endless belt b24 is fixed to 33 as described above. In FIG. 6, the point X is the vertical axis b at which the endless belt b24 is erected at the tip of the horizontal moving frame b1.
25 indicates that the endless belt b24 is fixed to the vertical frame b33 of the mandrel support moving member b26.

Reference numeral b34 denotes a support rod which is detachably and slidably attached to support frames b35 and b35 'which are erected on the upper part of the mandrel support moving member b26, and is supported at the tip of the support rod b34. The plate b34 'is attached. Further, a motor b36 capable of normal / reverse rotation is arranged on the support plate b34 ′, and the motor b36 capable of normal / reverse rotation.
A mandrel m is attached to the output shaft of 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 normally and reversely.

Below, a mandrel device Bm for controlling the movement of the mandrel m, which is shown as a T-shape by way of example, is shown.
The operation of will be described. The horizontal movement of the horizontal movement frame b1 for moving the mandrel m horizontally toward and away from the curved upper plate U having a track formed in the braider body Bb is described above. As described above, the pinion b7 is rotationally driven by driving the forward / reverse rotatable motor b6, and the rack b5 screwed to the pinion b7 is horizontally driven.

Next, the movement of the mandrel m in the direction substantially orthogonal to the movement in the horizontal direction approaching or moving away from the curved upper plate U will be described. From the state shown by the chain double-dashed line in FIG. 6, when the pinion b10 is rotated counterclockwise in FIG. 6 by the rotation of the motor b9 that can rotate in the normal and reverse directions, 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 to rotate the endless belt b24 counterclockwise. Since the mandrel support moving member b26 is fixed to the endless belt b24 at the point Z, the mandrel support moving member b26 also moves downward in FIG. 6 by the counterclockwise rotation of the endless belt b24. At this time, due to the above configuration, the pulley b
The mandrel support moving member b26 moves twice with respect to the moving amount of 23, and the mandrel support 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 capable of rotating in the normal and reverse directions, the fan-shaped rack b22 screwed to the pinion b10 is driven and the fan-shaped moving member. b17 moves further downward in FIG. 6, and the mandrel support moving member b26
Is configured to be rotatable to the lowermost position shown by the solid line in FIG. Further, in order to move the mandrel support moving member b26 upward from the lowermost position shown by the solid line, the forward / reverse rotatable motor b9 is reversely rotated 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 in one dimension or two dimensions, and the mandrel m can be positionally controlled in three dimensions by appropriately driving the motor b36 capable of rotating in the forward and reverse directions to rotate the mandrel m in the forward and reverse directions. can do.

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

(A) As shown in FIG. 7 (a), an end portion Y'of a yarn bundle in which a large number of yarns Y drawn from a bobbin placed on a bobbin carrier C is converged, is shown in FIG. The mandrel m is arranged so as to be located at one end (1) of the mandrel m, that is, the composition point P. For convenience of explanation, a triangle mark (Δ) is attached to a gripping position of the mandrel m by the mandrel moving device M, and an arrow indicates a moving method of the mandrel m. (B) From this state, composition is started by driving the braider body Bb and causing the bobbin carrier C to travel along the track, and as shown in FIG. 7 (b), the composition is directed toward the joint j of the mandrel m. Composition. (C) After composition up to the joint j of the mandrel m, FIG.
As shown in (c), the gripping position of the mandrel m is rotated counterclockwise to the state shown in FIG. 7 (d). From this state, as shown in FIG. 7E, the branch portion m1 of the mandrel m is formed. (D) As shown in FIG. 7 (e), the mandrel m
The drive of the braider body Bb is stopped when the composition reaches the end of the branch part m1 and the one end (1) of the mandrel m is removed from the mandrel gripping device as shown in FIG. 7 (f). The mandrel m is rotated 180 degrees to attach one end (1) of the mandrel m and the opposite end (2) to the mandrel gripping device.

(E) After that, the drive of the braider body Bb is restarted, and as shown in FIG. 8 (a), the mandrel m is folded back from the end of the branch m1 and is again branched.
Composition 1. (F) After composition up to the junction j of the mandrel m, FIG.
As shown in (b), the mandrel m is rotated clockwise to form the joint j of the mandrel m, and the mandrel m is further rotated to the position shown in FIG. 8 (c). Then, as shown in FIG. 8 (d),
Composition is performed up to the gripping end of the mandrel m.

(G) Next, as shown in FIG. 8E, the composition point P is moved in the direction of the junction j, and further, beyond the junction j, one end (1 2), a two-layer composition is formed around the mandrel m. (H) After that, as shown in FIG. 8 (f), the drive of the braider body Bb is continued for a predetermined period from the start of the separation of the mandrel m from the braider body Bb,
By continuing the traveling of the bobbin carrier C, a yarn bundle Y ″ is formed in which a large number of yarns Y connected to the composition body are entangled. At this time, one end of the mandrel m ( Since the end portion Y ′ of the yarn bundle Y ″ arranged in 1) is incorporated under the second layer composition in the composition process of the second layer composition, the end portion of the yarn bundle Y ″ is Y '
Is not located on the surface of the composition, and therefore the end Y'of the yarn bundle Y "is not loosened, and the end Y'of the yarn bundle Y" is not on the surface of the composition. Since it is not located, it is possible to form a good-looking composition. Then, the yarn bundle Y ″ is cut by an appropriate cutting device (not shown), and the mandrel m in which the T-shaped composition is formed is removed from the mandrel device Bm.

As shown in FIG. 9 showing the disassembling sequence of the mandrel m, the branch part m1 attached to the central part of the main part m2 of the mandrel m by a suitable fixing means such as a screw m3 is screwed. The mandrel m is disassembled by removing the m3 from the main part m2, and the branched part m1 and the main part m2 of the mandrel m are extracted from the composition H. It is also possible to manufacture the mandrel m from a synthetic resin that can be dissolved in a suitable solvent, form a composition around the mandrel m, and then dissolve the mandrel m with the solvent to remove the composition from the mandrel m.

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

Reference numeral n1 is a lower formwork in which a V-shaped half recessed portion n2 is formed, and n3 is an upper formwork in which a same V-shaped recessed portion n4 is formed. In addition, n5 is a lower mold n1 and an upper mold n joined with a resin such as a thermosetting resin.
3 is a resin injection hole for injecting into a V-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 and h2 are inserted to form a T-shaped composition H in a V-shape, and then the G-shaped composition H is mounted in the recessed portion n2 of the lower mold n1, and then placed thereon. The upper frame n3 is joined, and then 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, or the resin-impregnated V-shaped composition H taken out from the lower mold n1 and the upper mold n3 is heated. By doing so, the resin is cured to produce a molded article based on the composition.

As described above, the angle of the branch portion m1 is 90.
After forming the composition H around the mandrel m having a degree of
The composition H is removed from the mandrel m, and then the angle of the branch 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 the molded article based on the composition H having the branch portion m1 branched at an angle of less than 90 degrees is improved, and such a molded article is formed. The cost of the product can be reduced. Further, since the angle of the branch portion m1 of the mandrel m is 90 degrees or more, the design and manufacturing of the mandrel m becomes easy.

In the above description, from the T-shaped composition H formed by using the T-shaped mandrel,
Although an example for producing a V-shaped molded product having a branching portion of less than 0 degree has been described, a molding having a branching portion of less than 90 degrees is formed from a cross-shaped composition H formed by using a cross-shaped mandrel. Product, or a V-shaped molded product having a branching portion of less than 90 degrees from an L-shaped composition H formed by using an L-shaped mandrel, or a tetrapot having a three-dimensional structure A molded article having a branch portion of less than 90 degrees is produced from a tetrapot-shaped composition H formed by using a mandrel having a shape, or a molded article having a branch portion of less than 90 degrees is produced from mandrels 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 product based on a composition having a branching portion that branches at an angle of less than 10 degrees is improved, the cost of such a molded product can be reduced, and the composition is formed around the composition. Since the angle of the branched portion of the mandrel is 90 degrees or more, the mandrel can be easily designed and manufactured.

[Brief description of drawings]

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

FIG. 2 is a side view of the braider shown in FIG.

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

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 drawing showing the composition order of the composition to be a T-shaped mandrel.

FIG. 8 is a process diagram following FIG. 7, showing the composition sequence of the composition to be a T-shaped mandrel.

FIG. 9 is a parts diagram of the mandrel for showing the disassembly order of the mandrel.

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

[Explanation of symbols]

 BR: Braider Bb: Braider body Bm: Mandrel device C: Bobbin carrier D: ············· Drive device F ······· Machine stand G ···· Body M: Mandrel moving device U: Upper plate m: Mandrel n1 Lower formwork n3 ・ ・ ・ ・ ・ ・ ・ ・ ・ Upper formwork

Claims (3)

[Claims] 1. A composition having a branch angle of 90 degrees or more is set to a predetermined angle in which at least one angle of the branch is less than 90 degrees, and the set composition is molded and cured with a resin. A method for producing a molded article based on a composition characterized by the above. 2. A composition is formed around a mandrel having a branching angle of 90 degrees or more, the composition is removed from the mandrel, and then at least one branching angle of the composition is less than 90 degrees. A method for producing a molded article based on a composition, wherein the composition is set and cured at a set angle, and the set composition is molded and cured with a resin. 3. A composition is formed around a mandrel having a bifurcation angle of 90 degrees or more, the composition is removed from the mandrel, and then at least one bifurcation angle of the composition is less than 90 degrees. Set to an angle of 10 mm and inserted into a mold composed of a lower mold and an upper mold, and then a resin is injected into the mold, and then the resin is cured to cure the composition set in the mold with the resin. 1. A method for producing a molded article based on a composition characterized by being molded and cured in step 1.