JP3175448B2 - Braider - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a braider for forming various braids by assembling a plurality of yarns or fiber bundles (hereinafter, simply referred to as "yarns").

[0002]

2. Description of the Related Art Conventionally, various braiders are known which form a braid by combining a plurality of yarns or fiber bundles on mandrels having various shapes such as a T-shape, an I-shape and a tetra-pot shape. I have.

[0003]

In a conventional braider, the composition is started by grasping one end of the mandrel as described above, and during the composition, the driving of the braider is temporarily stopped, and the mandrel is grasped manually. After removing from the device, the gripping position of the mandrel is changed, and then the driving of the braider is restarted to form the braid on the mandrel.

Such manual replacement of the mandrel gripping position is time-consuming, and the mandrel is rotated by rotating the mandrel to grip the mandrel because a large number of yarns in the course of composition are interlaced. Changing positions requires considerable skill and effort. Furthermore,
In a large-sized braider, it is substantially difficult to manually change the gripping position of the mandrel.

Further, since the mandrel is attached to the mandrel gripping plate of the blader by means of fixing means such as bolts, nuts or screws, it is difficult to remove and attach the mandrel. There is a problem that the time required for replacement of the blade becomes long, and therefore, the productivity of the blader is deteriorated.

An object of the present invention is to solve the above-mentioned problems of the conventional braider and to provide a braider excellent in productivity or workability.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a method for gripping a mandrel during a composition operation.
The gripping by the drel holding device and the mandrel holding device
Temporarily grasp the released mandrel and remove the mandrel.
The secondary mandrel gripper that changes the position is
It was arranged in.

Hereinafter, embodiments of the present invention will be described. However, the present invention is not limited to the embodiments without departing from the spirit of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a blade according to the present invention, and FIG. 2 is a sectional view taken along the line II of FIG. In FIGS. 1 and 2, a rectangular portion indicated by a dotted line above the bobbin carrier C does not show a thread guide portion c3 described later.

The blader BR includes a blader body Bb and a mandrel device Bm. The blader main body Bb has a curved upper plate U having a predetermined radius of curvature R and an upper plate U disposed in a substantially cylindrical machine base Fb having a horizontal axis.
A bobbin carrier C that travels along a track drilled in the vehicle, a driving device D for causing the bobbin carrier C to travel along the track, a composition position stabilizing guide member G, and the like.The mandrel device Bm It comprises a machine base Fm and a mandrel moving device M.

Hereinafter, each of the above devices and members will be described. First, a driving device D for causing the upper plate U and the bobbin carrier C of the blader body Bb to travel along a track will be described mainly with reference to FIG.

As shown in FIG. 1, 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.

Y is a yarn that is unwound from a bobbin mounted on a bobbin carrier C and travels toward a composition point P on a mandrel m supported by a mandrel device Bm, and y is a substantially cylindrical shape. The bobbin carrier C disposed substantially horizontally on the frame Fb ′ of the machine base Fb is rewound,
After being guided in a substantially right-angle direction by a guide roller f6 attached to the machine base Fb and being inserted into the hollow bolt f3, a middle or reinforcing yarn (hereinafter simply referred to as This is referred to as “middle 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 the track by moving the engaging shaft c1 of the bobbin carrier C fitted in the groove formed in the impeller d2.
As described above, the bobbin carrier C is caused to travel along a track formed on the curved upper plate U to cross many yarns Y to form a braid on the mandrel m having various shapes. If necessary, the bobbin carrier C disposed substantially horizontally on the frame Fb 'of the machine base Fb rewinds the middle thread y from the bobbin carrier C traveling along the track to form the yarn. To form a braid.

As shown in FIG. 1, a bobbin carrier C is arranged along a track formed on a peripheral surface of a curved upper plate U, and the bobbin mounted on the bobbin carrier C is provided. The yarn Y pulled out from the bobbin in the axial direction is
It is configured to gather at the center of the curved upper plate U. The composition point P of the braid composed on the mandrel m attached to the mandrel device Bm described later is a curved upper plate U
Is configured such that the position of the mandrel m is controlled so as to be located substantially at the center of the mandrel m.

Next, the bobbin carrier C will be described with reference to FIG. 3, which is a front view of the bobbin carrier C. In FIG. 3, 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 and c having a substantially triangular tip are 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.

Reference numeral c6 'denotes a cylindrical bobbin cover, which 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 the yarn Y wound on the bobbin c6, and is wound on the adjacent bobbin. This is to prevent troubles such as entanglement with the thread or the other members of the blader.

On the substantially U-shaped frame c10 of the thread guide portion c3 arranged at the end of the mast c4, a tension washer c11 and a guide roller c1 are arranged in order 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. 3 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. 3 so as to absorb the slack of the yarn Y. Is configured.

In addition, through holes c18 and c19 through which the thread Y is inserted are formed in the frame c10 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 By turning 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. 3 unless the lock is released by an appropriate lock.

In FIG. 3, c21 is a lower flange having a substantially elliptical shape, and c22 is an upper flange c2 and a lower flange c21 which are fitted and slid on a track formed in the upper plate U.
It is a guide part arranged between them. The bobbin carrier C is configured to run along a track while being held substantially perpendicular to the upper plate U by sandwiching the upper plate U between the upper flange c2 and the lower flange c21.

Next, the composition position stabilizing guide member G will be described. The composition position stabilizing guide member G is a frame g1 'extending substantially horizontally from the intermediate frame Fb "of the machine base Fb.
The first composition position stabilizing guide member g1 attached to the first member and the first composition position stabilizing guide member g1 are attached to the front end of a frame g2 'erected on a floor member Fr arranged at a predetermined interval from the first member. The second composition position stabilization guide member g2 is attached.

The first composition position stabilizing guide member g1 and the second
The composition position stabilizing guide member g2 is arranged at predetermined intervals to separate the thread Y that swings with the lateral movement of the bobbin carrier C running meandering along the track formed in the upper plate U. The composition point P is maintained at a substantially constant position by guiding the first composition position stabilizing guide member g1 and the second composition position stabilizing guide member g2, and restricting the swing. 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, and therefore, the shape of the formed braid is uniform and stable. Braids can be manufactured. Further, by disposing the composition position stabilizing guide member G, when the mandrel m is moved rightward in FIG. 1 after the composition is completed,
A large number of yarns Y connected to the braid formed by the second composition position stabilizing guide member g2 are bundled, and the cutting of the yarns Y by a suitable cutting device (not shown) can be effectively performed.

Next, the mandrel device Bm will be described mainly with reference to FIG. 4 which is a side view of the mandrel device Bm and FIG. 5 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 main body Bb as shown in FIG. 1, and a track arranged in the blader main body Bb is formed in the upper part of the machine base Fm. A horizontal moving frame b1 that can move horizontally toward the approximate center of the curved upper plate U is disposed. A recess b2 is provided on both side walls of the horizontal moving frame b1, and the machine base F is provided in the recess b2 as shown in FIG.
Guide rollers b3, b3 'pivotally mounted on the horizontal axis and guide rollers b4, b4' pivotally mounted on the vertical axis, which are arranged above m, are fitted.

At the lower part of the horizontal moving frame b1, a rack b5 is attached 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. Horizontal axes b11 and b12 are attached to the tip of the horizontal moving frame b1 and the fan-shaped frame b8, and guide rollers b13 and b14 are attached to the horizontal axes b11 and b12, respectively. The fan-shaped frame b8 is provided with a vertical shaft b15, and a guide roller b16 is attached to the vertical shaft b15. In addition, such guide rollers b13, b14, b16
Are arranged in an appropriate number along the longitudinal direction of the fan-shaped frame b8,
The fan-shaped moving member b17 described below is configured to be stably held.

The fan-shaped moving member b17 is formed of a frame member having a substantially rectangular cross section. By protruding an appropriate number of edges in the horizontal or vertical direction from the outer wall of the fan-shaped moving member b17, Guide rollers b13 and b1 arranged on the tip of the horizontal moving frame b1 and the fan-shaped frame b8.
4. Rail members b18, b19, b2 to which b16 fits
0 is 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 output shaft b9 'of the motor b9 capable of rotating in the forward and reverse directions is attached to the fan-shaped rack b22. And the pinion b10 attached to the is screwed. Accordingly, the pinion b10 is rotationally driven by the rotation of the motor b9 that can rotate in the forward and reverse directions, and the fan-shaped rack b22 screwed to the pinion b10 is driven.
Rail members b18, b19, b2 of the fan-shaped moving member b17
0 and guide rollers b13, b14, b arranged on the tip of the horizontal moving frame b1 and the fan-shaped frame b8.
16 to move horizontally while maintaining the horizontal state.

As shown in FIG. 5, 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 support 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 appropriately arranged on the mandrel supporting and moving member b26 so as to be stably held by the rail members b31 and b32 of the fan-shaped moving member b17.

A vertical frame b33 is suspended from the mandrel supporting and moving member b26.
At 33, one endless belt b24 is fixed as described above. In FIG. 5, 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 or slidably mounted on support frames b35 and b35 'erected on the upper part of the mandrel support moving member b26.
A support plate b34 'is attached to the tip of the support bar b34. A mandrel gripping device S, which will be described later, is provided on the support plate b34 '.

The following is an example of the composition of the braid,
The operation of the mandrel device Bm for controlling the movement of the mandrel m shown as a letter will now 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 drilled is described above. The pinion b7 is rotationally driven by driving the motor b6 which can rotate forward and reverse in the above manner, and the rack b5 screwed with the pinion b7 is horizontally driven.

Next, a description will be given of the movement of the mandrel m in a direction substantially orthogonal to the horizontal movement approaching or leaving the curved upper plate U. When the pinion b10 is rotated in the counterclockwise direction in FIG. 5 by the rotation of the motor b9 capable of normal and reverse rotation from the state shown by the solid line in FIG. 5, the fan-shaped rack b screwed to the pinion b10
22 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. 5, the endless belt b24 on the opposite side of the pulley b23 is pulled downward in FIG. 5, and the endless belt b24 is rotated in the counterclockwise direction. Since the mandrel supporting and moving member b26 is fixed to the endless belt b24 at the point Z, the mandrel supporting and moving member b26 also moves downward in FIG. 5 by rotating the endless belt b24 in the counterclockwise direction. At this time, with the above configuration, the mandrel support moving member b26 moves twice as much as the moving amount of the pulley b23, and the mandrel support moving member 26 can move quickly.

Further, when the pinion b10 is rotated in the counterclockwise direction in FIG. 5 by the rotation of the motor b9 capable of rotating forward and reverse, the fan-shaped rack b2 screwed to the pinion b10 is rotated.
2 is driven, the fan-shaped moving member b17 moves further downward in FIG. 5, and the mandrel supporting moving member b26
Is configured to be able to rotate to the lowermost position shown by the two-dot chain line. Further, in order to move the mandrel support moving member b26 upward from the lowermost position shown by the two-dot chain line, the motor b9 that can be rotated forward and backward is rotated in reverse to rotate the pinion b10 clockwise in FIG. .

The position of the mandrel m is controlled by the mandrel device Bm as described above, and a braid is formed on the mandrel m.

Next, referring to FIG. 6 which is a perspective view of the mandrel gripping device S and FIG. 7 which is a side view including a partial cross section of the mandrel gripping device S, showing a step of gripping the mandrel m by the mandrel gripping device S. The mandrel gripping device S provided at the tip of the support bar b34 of the mandrel moving device M will be described.

S1 is the supporting plate b of the mandrel moving device M
34 'is a frame attached to the tip of the frame 34' by a suitable fixing means such as bolts and nuts. The frame s1 is inserted into the supporting plate b34 'by a slot s formed in the frame s1.
2. By moving along s2 ', the frame s
It is preferable to configure so that the mounting position of 1 can be adjusted.

A frame member s5 having a vertical stopper s4 hung at the end of a horizontal frame s3 is attached to the frame s1, and the frame member s5 is also fixed with appropriate fixing means s6 and s6 'such as bolts and nuts. The mounting position of the frame member s5 with respect to the frame s1 can be adjusted by the slots s7 and s7 'formed in the mounting portion s1' of the frame member s5 of the frame s1. In addition, the long holes s2 and s2 ′ of the frame s1 and the long holes s7 and s7 ′ of the mounting portion s1 ′ of the frame member s5 of the frame s1 are arranged so as to be substantially orthogonal to each other, so that the frame member s5 is mounted. The degree of freedom of the position is increased.

Reference numeral s8 denotes a horizontal cylinder attached to an appropriate portion of the frame member s5, and a bracket s10 having a substantially U-shaped planar shape is attached to the tip of a piston rod s9 of the horizontal cylinder s8. Have been. The bracket s10 is provided in the internal space s10 'of the bracket s10.
A substantially L-shaped movable chuck s11 having a corner pivotally attached to a horizontal axis s10 ″ attached to the bracket is disposed. On the other hand, the distal end of the bracket s10 is positioned below the movable chuck s11. A fixed U-shaped mandrel positioning member s13 is attached to the fixed chuck s12 substantially vertically.

Reference numeral s14 denotes a guide block attached to an appropriate portion of the frame member s5. A horizontal guide rod s15 is slidably inserted into the guide block s14. Is attached to a substantially U-shaped mandrel positioning member s13.

The movable chuck s11 and the fixed chuck s12 form a substantially cylindrical chuck portion s16 which can be inserted into a hole m 'formed at the end of the mandrel m. A concave portion s11 ′ and a concave portion s12 ′ having a predetermined width and depth, respectively, are provided on the substantially semi-cylindrical surface.
An elastic band s17 made of rubber or the like is fitted in the concave portions s11 ′ and s12 ′, and the elastic band s17 is formed to have a thickness slightly larger than the depth of the concave portions s11 ′ and s12 ′. I have. Note that, for convenience of explanation, the elastic band s17 is omitted in FIG.

In order to hold the mandrel m by a substantially cylindrical chuck portion s16 composed of a movable chuck s11 and a fixed chuck s12, as shown in FIG. The rod s9 is advanced in the mandrel m direction, and the chuck portion s1
6 is inserted into a hole m 'formed at the end of the mandrel m. At this time, as described above, at the tip of the horizontal guide rod s15 that moves horizontally along the guide block s14,
Since the substantially U-shaped mandrel positioning member s13 to which the fixed chuck s12 is mounted is mounted, the fixed chuck s12 and the mandrel positioning member s13 move horizontally in a stable state without swinging left and right or up and down. Therefore, the chuck portion s16 can be reliably inserted into the hole m 'formed in the end of the mandrel m, and the mandrel m can be accurately positioned.

When the substantially entire length of the chuck portion s16 is inserted into the hole m 'formed in the end of the mandrel m, approximately L
The tip of the vertical portion s11 ″ of the V-shaped movable chuck s11 is
Stopper s4 suspended from horizontal frame s3 of frame member s5
Then, when the piston rod s9 is further advanced in the mandrel m direction, as shown in FIG. 7B, the substantially L-shaped movable chuck s11 is
10, the elastic band s17 expands and the elastic band s17 is pressed against the inner wall of a hole m 'formed in the end of the mandrel m. The mandrel positioning member s13 abuts on the end of the mandrel m by the movement of the chuck portion s16 in the mandrel m direction, and the gripping positions of the chuck portion s16 and the mandrel m are always constant. It is configured to be.

When the piston rod s9 is retracted from the state where the chuck portion s16 is holding the mandrel m,
The tip of the vertical portion s11 ″ of the substantially L-shaped movable chuck s11 is separated from the stopper s4 hanging down from the horizontal frame s3 of the frame member s5, and the substantially L-shaped movable chuck s11 is attached to the bracket s10. The elastic band s17 is rotated counterclockwise about the axis s10 ″, and the elastic band s17 contracts. Accordingly, the grip of the mandrel m by the chuck s16 can be released.

In the above-described embodiment, the concave portions s11 'and s12' are provided on the semicircular surfaces of the movable chuck s11 and the fixed chuck s12, respectively.
Although an example is shown in which elastic bands s17 made of rubber or the like are fitted to 2 ′ and s12 ′, concave portions s11 ′ and s12 ′ are formed in the substantially semi-cylindrical surfaces of the movable chuck s11 and the fixed chuck s12. Alternatively, the chuck portion s16 can be configured without fitting the elastic band s17.

Next, a sub-mandrel gripping device H for temporarily gripping the mandrel m when changing the gripping position of the mandrel m gripped by the above-described mandrel gripping device S will be described with reference to FIG. This will be described with reference to FIG. 8 which is a perspective view of the gripping device H.

As shown in FIG. 1, the sub-mandrel holding device H includes a substantially vertical intermediate frame Fb ″ of the machine base Fb.
The frame h2 has a substantially L-shaped side surface attached by a suitable fixing tool such as a bolt h1. An elongated hole h2 'is formed in the frame h2, and a bolt h is inserted into the elongated hole h2'.
It is preferable that the position of the frame h2 be adjustable along the elongated hole h2 ′ by inserting the intermediate frame Fb ″ into the frame h2 by inserting the frame 1 into the frame h2.

Reference numeral h3 denotes a cylinder mounted on the lower surface of the frame h2, and a piston rod h of the cylinder h3.
At the end of 3 ', a sliding frame h having a substantially T-shaped side surface
4 are attached. A motor h5 that can rotate forward and reverse is attached to the upper part of the vertical part h4 'of the substantially T-shaped sliding frame h4, and the lower part of the vertical part h4' is connected to the piston rod h3 '. It is attached to the tip. The horizontal portion h4 ″ of the substantially T-shaped sliding frame h4 is provided with grooves h6 ′ on both sides attached to the horizontal portion h2 ″ of the frame h2.
Is inserted into the groove h6 'of the guide member h6 in which the sliding frame h4 is moved relative to the frame h2 by operating the cylinder h3 to reciprocate the piston rod h3'. It is configured to be able to slide.

The vertical portion h of the substantially T-shaped sliding frame h4
A boss h7 'of a rotating frame h7 is attached to an output shaft h5' of a forward / reverse rotatable motor h5 extending through 4 '. A horizontal cylinder h8 corresponding to the horizontal cylinder s8 of the above-described mandrel gripping device S is disposed in the lower horizontal portion h7 'of the rotating frame h7.
A fixed chuck h1 similar to the substantially U-shaped mandrel positioning member s13 to which the fixed chuck s12 of the mandrel gripping device S is attached is provided at the tip of the piston rod h9 of FIG.
0-attached substantially U-shaped mandrel positioning member h1
1 is attached.

On the other hand, a horizontal frame h12 corresponding to the horizontal frame s3 of the mandrel gripping device S extends from the upper horizontal portion h7 ″ of the rotating frame h7, and the horizontal frame h12 is provided with the mandrel gripping device S. Stopper h1 as in horizontal frame s3
2 'is hanging. The mandrel positioning member h11 includes a bracket s10 of the mandrel gripping device S.
A movable chuck h14 similar to the substantially L-shaped movable chuck s11 of the mandrel gripping device S is pivotally attached to the horizontal axis h13 '.

A horizontal guide shaft h is provided at an end of the bracket h13.
15 is attached, and the horizontal guide shaft h15 is
7, is inserted into a guide block h16 corresponding to the guide block s14 of the mandrel gripping device S.

Next, the operation of the auxiliary mandrel holding device H will be described.
The means for gripping the mandrel m by 14 is the same as the means for gripping the mandrel m by the fixed chuck s12 and the movable chuck s11 of the mandrel gripping device S, and a description thereof will be omitted.

As described above, the sub-mandrel gripping device H operates the cylinder h3 to move the piston rod h
By reciprocating 3 ', the sliding frame h4 can be slid with respect to the frame h2. Therefore, the output shaft h5' of the forward / reverse rotatable motor h5 disposed on the sliding frame h4. Can be reciprocated similarly. In addition, by appropriately driving the motor h5 that can be rotated forward and backward, the rotating frame h7 is rotated, and the fixed chuck h10 and the movable chuck h14 are rotated.
It is configured so that the mandrel m gripped by can be rotated. The holding and releasing of the mandrel m by the fixed chuck h10 and the movable chuck h14 is performed by a horizontal cylinder h8 similar to the horizontal cylinder s8 of the mandrel holding device S.

Next, the cooperative operation between the mandrel gripping device S and the sub-mandrel gripping device H will be described with reference to FIG. 9 which is a schematic plan view showing operation steps of the mandrel gripping device S and the sub-mandrel gripping device H. .

As shown in FIG. 9A, during the composition operation of the mandrel m, the mandrel holding device S holds one end (1) of the mandrel m, and the sub-mandrel holding device H By operating the cylinder h3 and pushing out the piston rod h3 ′, the cylinder h3 stands by at a position separated from the mandrel m gripped by the mandrel gripping device S.

The mandrel m by the mandrel holding device S
When changing the gripping position of the mandrel m from one end (1) to the other end (2) of the mandrel m, first, as shown in FIG.
Is operated, the sliding frame h4 is slid in the direction of arrow A in FIG. 8, and the rotation attached to the output shaft h5 'of the forward / reverse rotatable motor h5 disposed on the sliding frame h4. The moving frame h7 is similarly moved in the direction of arrow A in FIG.

Next, by moving the piston rod h9 of the horizontal cylinder h8 in the direction of arrow A in FIG. 8, the operation of gripping the mandrel m by the mandrel gripping device S is performed by the same operation as that of the mandrel gripping device S described above. The fixed chuck h10 and the movable chuck h14 are inserted into a hole m 'formed at the end of the mandrel m, and the mandrel m is fixed by the fixed chuck h10 and the movable chuck h14.
And release the grip of the mandrel m by the mandrel gripping device S.

Next, the motor h5 capable of rotating forward and backward is appropriately driven to fix the fixed chuck h of the sub-mandrel gripping device H.
The mandrel m gripped by the movable chuck 10 and the movable chuck h14 is rotated as shown in FIG. 9C, and the other of the mandrel m and the movable chuck s11 of the mandrel gripping device S are moved forward. Position edge (2).

Thereafter, as shown in FIG. 9D, the other end (2) of the mandrel m is connected to the mandrel holding device S.
And release the gripping of the mandrel m by the sub-mandrel gripping device H. Further, the cylinder h3
To push the piston rod h3 'back to the standby position.

As described above, the auxiliary mandrel gripping device H
Is provided, the work of changing the gripping position of the mandrel m gripped by the mandrel gripping device S can be automated, the productivity of the blader can be improved, and labor can be saved.

Further, since the work of changing the gripping position of the mandrel m can be automated, the work of changing the gripping position of the mandrel of a large blader, which has been difficult to manually change the gripping position of the mandrel, becomes easy. The composition of large braids of various shapes by the braider becomes possible.

[0062]

Since the present invention is configured as described above, it has the following effects.

By arranging the sub-mandrel gripping device, it is possible to automate the operation of changing the gripping position of the mandrel gripped by the mandrel gripping device. Therefore, the time required for replacing the mandrel gripping position is reduced, and the blader is replaced. And the labor for replacing the mandrel gripping position can be reduced.

Since the operation of changing the gripping position of the mandrel can be automated, it is easy to change the gripping position of the mandrel of a large-sized blader, which has been difficult to manually change the gripping position of the mandrel. The composition of the braid having the large shape of the above becomes possible.

[Brief description of the drawings]

FIG. 1 is a side view of a braider according to the present invention.

FIG. 2 is an enlarged front view of a driving device for causing the bobbin carrier including the II section of FIG. 1 to travel along a track.

FIG. 3 is a front view of the bobbin carrier.

FIG. 4 is a side view of the mandrel moving device.

FIG. 5 is a partially enlarged plan view of the mandrel moving device.

FIG. 6 is a perspective view of a mandrel gripping device.

FIG. 7 is a side view including a partial cross section of the mandrel gripping device.

FIG. 8 is a perspective view of a sub-mandrel gripping device.

FIG. 9 is a schematic plan view showing operation steps of the mandrel gripping device and the sub-mandrel gripping device.

[Explanation of symbols]

 BR: Braider Bb: Braider body Bm: Mandrel device C: Bobbin carrier G:・ ・ ・ ・ ・ ・ ・ ・ ・ Composition position stabilization guide member H ・ ・ ・ ・ ・ ・ ・ ・ ・ Secondary mandrel holding device M ····· Mandrel holding device U ··························

Claims (1)

(57) [Claims] 1. A mand for gripping a mandrel during a composition operation
Releasing by the gripper and mandrel gripper is released
The mandrel temporarily held, and position the mandrel
A blader comprising: a sub-mandrel gripping device for performing a change ;