JPH0441756A - Method for setting yarn orientation angle for loom for three-dimensionally woven fabric and apparatus therefor - Google Patents

Abstract

PURPOSE:To simplify the setting of an orientation angle of a yarn by setting the angle based on a shifting position with an orientation angle setting bar which transfers the yarn crossing point, generated by weaving to a point near the cloth fell position. CONSTITUTION:Yarns are crossed with each other by the motion of a carrier of a yarn 1 positioned on a carrier moving plane 10. The formed crossing point is shifted to a point near the cloth fell position by an orientation angle setting bar 53 inserted between the yarns. The crossing position to be transferred by the setting bar 53 is used as the position for setting or controlling the orientation angle of yarn in a three-dimensional woven fabric 2.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for moving a yarn carrier placed on a carrier movement surface along a desired trajectory by a carrier drive mechanism.
In a three-dimensional textile loom in which threads held by a carrier are arranged together, the orientation angle of the threads in the woven fabric can be arbitrarily set to obtain a three-dimensional textile having a desired orientation angle. The present invention relates to a yarn orientation angle setting method and apparatus for a three-dimensional textile loom.

[Prior Art] In a three-dimensional textile loom using a blade (braid) system, the orientation angle of reinforcing fibers is determined by the interrelationship between the loom position and the tension, but it is difficult to obtain the desired orientation angle and volume content. The problem is that it is difficult.

On the other hand, the present inventor has proposed a three-dimensional textile loom for weaving three-dimensional textiles in Japanese Patent Application No. 63-335020. In this three-dimensional loom, a large number of rotors are arranged in rows and columns along the carrier movement surface to run the yarn carrier along a desired trajectory, and each rotor is driven to rotate by a motor. The rotation of the rotor by this motor moves the carrier along a required trajectory, and the threads held by the carrier are organized together. However, even in such a three-dimensional textile loom, the threads are In order to stably and approximately equalize the orientation angle or to arbitrarily control the orientation angle, it is necessary to provide some kind of orientation angle setting means.

[Problems to be Solved by the Invention] The technical problem of the present invention is to forcibly remove the intersection points of threads that are twisted during weaving! An object of the present invention is to provide a method and an apparatus therefor, in which a conveying means is provided near the front position, and the orientation angle of the yarn is set or controlled depending on the conveying position.

[Means for Solving the Problems] In order to solve the above problems, the yarn orientation angle setting method for a three-dimensional textile loom according to the present invention is such that a yarn carrier arranged on a carrier movement plane is moved along a desired trajectory by a carrier drive mechanism. In the method of weaving a three-dimensional fabric by running the threads held by the carrier and weaving them together, the intersection points of the threads crossed by the movement of the carrier are inserted between the threads. It is characterized in that the orientation angle setting bar carries the yarn to the vicinity of the loom position, and the orientation angle of the yarn in the three-dimensional fabric is set or controlled depending on the position to which it is carried.

Further, the yarn orientation angle setting device for a three-dimensional textile loom of the present invention allows a carrier of the yarn arranged on a carrier moving surface to travel along a required trajectory by a carrier drive mechanism, and the yarn held by the carrier is In a three-dimensional textile loom that weaves a three-dimensional textile by weaving three-dimensional textiles by weaving three-dimensional textiles by weaving three-dimensional textiles, an orientation angle setting bar is inserted and removed between the threads to carry the intersection point of the threads intersected by the movement of the carrier 9 to the vicinity of the cloth front position. The present invention is characterized in that the position of the intersection of the threads carried by the orientation angle setting bar is the position for setting the orientation angle of the threads in the three-dimensional fabric to be woven.

[Function] A three-dimensional fabric can be woven by making a carrier of threads placed on a carrier moving surface run along a desired trajectory by a carrier drive mechanism and weaving together the threads held by the carrier. but.

In this case, the intersection point of the threads crossed by the movement of the carrier is carried to the vicinity of the woven fabric position by an orientation angle setting bar inserted between the threads, and the carrying position is set to the orientation angle of the threads in the three-dimensional fabric. Since the position is for setting or controlling, it is possible to easily obtain a three-dimensional fabric having a desired yarn orientation angle.

[Example] Below, the method and apparatus of the present invention will be described in detail with reference to the drawings.

1 and 2 show different embodiments of a three-dimensional textile loom according to the present invention, and FIGS. 3 and 4 show the configuration of a carrier drive mechanism 12 used in these three-dimensional textile looms. be.

The three-dimensional textile loom shown in FIG. 1 has a large number of rotors arranged in rows and columns along a cylindrical carrier movement surface 10 to run carriers of yarn l along a required trajectory. are doing.

In order to clarify the mode of weaving by this three-dimensional textile loom, first, the construction of the weaving section, that is, the carrier 11 and the carrier drive mechanism 12, will be explained in detail with reference to FIGS. 3 and 4.

The carrier drive mechanism 12 shown in FIGS. 3 and 4 has a plurality of rotors 13 arranged adjacent to each other along a carrier moving surface 1o having a cylindrical, spherical or planar shape in a plurality of rows. The rotors 13 are arranged in a plurality of rows and can be driven by the rotation of a drive shaft 15 that is rotatably supported on a machine frame 14. The arrangement of the rotors 13 allows the carrier 11 to move in a wider area. Set. In the three-dimensional textile loom shown in FIG. 1, this carrier moving surface 10 is formed into a partially cylindrical shape.

In order to hold the carrier 11 and move it along a required path, each rotor 13 is provided with a recess 13a for holding the carrier 11 between a pair of adjacent rotors.

The recesses 13a of these rotors are formed in such a shape that when one of the pair of adjacent rotors 13, 13 rotates, the carrier 11 held therebetween can move using the recess 13a of the other rotor as a guide. Therefore, the inner surface of the recess 13a is formed into a cylindrical surface centered on the rotation axis of the adjacent rotors, or a rotation surface functionally equivalent thereto.

On the other hand, the carrier 11 sandwiched between those rotors 13
The holding part 16 is formed of two cylindrical surfaces so as to fit into the space formed between the recesses 13a of a pair of adjacent rotor blades 3, and the collar part 17 for preventing extraction is provided above and below the holding part 16. A locking portion 18 for locking a tension applying device (not shown) that grips the yarn 1 is provided thereon. The above-mentioned tension applying device grips the yarn in a state in which tension is applied, and devices with various conventionally known structures can be adopted.

Therefore, the holding part 16 of the carrier 11 is sandwiched and supported between the recesses 13a of a pair of adjacent rotors 13.13, and one rotor 13 of the pair of rotors supporting the carrier is rotated in units of 90''. By doing so (see part A), the carrier 11 moves using the other rotor as a guide, and by repeating this on a large number of rotors, a large number of carriers 11 are made to travel a required trajectory to weave a three-dimensional fabric. I can do it.

Note that a core thread locking portion 19 is provided in the center of the rotor 13, which is used when inserting the core thread into the three-dimensional fabric to be woven.

In order to rotatably support the rotor 13 on the machine frame 14, the drive shaft 15 connected to the rotor 13 is rotatably supported on a sleeve 21 attached to the machine frame 14, and protrudes from inside the drive shaft 15 by a spring 22. ball 23, sleeve 2
The drive shaft 15 is fitted into one of the grooves 24 provided every 90° in the rotor 1, so that the drive shaft 15 can be positioned every 90° such that the recess 13a of the rotor 13 faces the recess of each adjacent rotor.

Further, the tip portion 27 of the drive shaft 15 is formed into a square shaft shape,
It constitutes a connecting portion with a square socket 32 of a rotor drive unit 31 in a partial drive device 30 as shown in FIGS. 1 and 5.

Next, the configuration of the partial drive device 30 will be explained.

In order to rotationally drive the rotor 13 in the carrier drive mechanism 12, as shown in FIG.
It is arranged so that it can be moved along 3.

As shown in FIG. 5, this partial drive device 30 includes a plurality of rotor drive units 31 (here, in a single vertical row) that drive parts of the rotors arranged and installed on the carrier moving surface 10, and the partial drive device itself. Guide 3 in the rotor arrangement area
The rotor 1 can be moved circumferentially along the rotor 1.
The mechanism for transmitting rotation between the drive shaft 15 of No. 3 and the socket 32 in the rotor drive unit 31 allows the rotor drive unit 31 to move forward and backward in the radial direction, and their driving is controlled by a control device (not shown).

To be more specific, this partial drive system! 30 is
A mounting base 37 of the rotor drive unit 31 is mounted on the base plate 35 moving along the guide 33 by a sliding guide 36.
is installed so as to be movable forward and backward toward the drive shaft 15 side of the rotor, and the mounting base 37 is movable along the guide 33 in the circumferential direction together with the base plate 35 by a motor (not shown), thereby sweeping the rotor arrangement area. It constitutes a moving mechanism.

Further, the cover 38 integrated with the base plate 35 in the partial drive device 30 and the support frame 39 installed near the center of the cylindrical surface of the machine frame 14 are connected by a connecting member 41. The connecting member 41 has one end fixedly attached to the cover 38 and the other end rotatably attached to the support frame 39. The mounting can also be rotatable and slidable. Therefore, the movement of the partial drive device 30 along the guide 33 by the moving mechanism is performed in a state where the cover 38 integrated with the base plate 35 and the support frame 39 are connected by the connecting member 41, and the connecting member 41 is always partially driven. It will be driven following the device 30.

Further, the mounting base 37 is driven by a moving device 43 made of a fluid pressure cylinder toward the drive shaft 15 side of the rotor 13 in order to connect the drive shaft 15 to the socket 32 in the rotor drive unit 1-31. These constitute means for connecting and separating the drive shaft 15 and the socket 32.

Rotor drive unit 31 installed on the mounting base 37
As shown in FIG.
Rods 46 equipped with square hole-shaped sockets 32 at their tips to be connected to the mounts 37 are rotatably supported by the mounting base 37, and universal joints 47. A hydraulic rotary actuator 50 is connected via a connecting rod 48 and a universal gigopoint 49. Although not shown, the rotary actuators 50 are distributed in a direction perpendicular to the plane of the paper using universal joints 47, 49 and connecting rods 48, so that the sockets 32 can be arranged closely. It is.

Although not shown, the rotary actuator 50 is connected to a pressure fluid source through valves each of which is controlled by a control device.

In addition, the connecting member 41 connected to the partial drive device 30 carries the intersecting points of the threads 1 intersected by the movement of the carrier to the vicinity of the loom position, and depending on the carried position, the threads in the three-dimensional fabric 2 A yarn orientation angle setting device 52 including an orientation angle setting bar 53 for setting the orientation angle of the yarn is provided. The orientation angle setting bar 53 can be inserted and removed between the yarns 1 by an actuator 54 such as a fluid pressure cylinder, and is configured to set the orientation angle so that the intersection point of the yarns 1 is carried along the connecting member 41 to the vicinity of the cloth facing position. A bar driving device (not shown) for moving the setting bar 53 along with its actuator 54 along the connecting member 4I is provided within the connecting member 41. This bar driving device is equipped with a stopper whose position can be adjusted to stop the orientation angle setting bar 53 fed thereby at an arbitrary position near the weaving cloth position. The orientation angle of the yarn in the three-dimensional fabric 2 can be set.

Note that the partial drive device 30 and the yarn orientation angle setting device 5
No. 2 is provided with only the negative set of these, and the positioning of the yarn orientation angle setting device 52 in the circumferential direction is also used for the movement of the partial drive device 30 in the circumferential direction. Such a partial drive device 30
A plurality of sets of the yarn orientation angle setting devices 52 can be installed, and a large number of yarn orientation angle setting devices 52 can be installed separately from the partial drive device 30 in correspondence to each rotor position. Furthermore, by providing an orientation angle setting bar along the inner circumferential direction of the machine frame 14, it is also possible to carry the intersection point of the yarns to the vicinity of the loom position.

The three-dimensional textile loom of FIG. 1 equipped with the above-mentioned weaving section moves a large number of rotors 13 in the above-mentioned carrier drive mechanism 12 in a large number of rows along a carrier moving surface 10 formed by a cylindrical machine frame 14. The carriers 11 holding the yarn 1 are moved along a predetermined trajectory by the selective rotational drive of the rotor 13 in this carrier drive mechanism, which is arranged in multiple rows, thereby moving the yarn 1 in the opposite direction. The sides are arranged together and shaped to maintain a desired cross-sectional shape by a shape regulating device 57 on an underframe 56 that projects horizontally from the machine frame 14, so that a three-dimensional shape with an appropriate shape as illustrated in the figure is formed. The fabric 2 is pulled out by a winding device 58.

During this weaving, the area in which the rotors 13 are arranged is swept by a partial drive device 30 equipped with a large number of rotor drive units (31), and the drive shafts of the rotors 13, which are arranged in parallel with the rotor drive units in many rows and many columns, are moved in between. 15, that is, the partial drive device 30 is sequentially moved to the position of the rotor that requires rotation, and the necessary rotation of the drive shaft 15 is performed there under the control of the control device. Move the partial drive device 30 to the position that requires rotation to the upper IC! The operation is repeated, thereby driving the necessary rotors in the array area, and weaving a three-dimensional fabric.

The yarn orientation angle setting device 52 transports the intersecting points of the yarns l that are crossed by the movement of the carrier 11 to the vicinity of the cloth facing position. It is inserted between the rows 1, and in the inserted state is moved to the vicinity of the loom position by a bar drive device. The movement position in this case is set by the stopper, and the orientation angle of the thread in the three-dimensional fabric is set by the position and the tension acting on the thread. The position at which the intersection of the threads is conveyed by the orientation angle setting bar 53 can be controlled during or during weaving by controlling the position of the stopper, so that the orientation angle of the threads in the three-dimensional fabric can be appropriately controlled.

The three-dimensional textile loom shown in FIG. The carrier drive mechanism (not shown) independently rotates the carrier drive mechanism, and the carrier drive mechanism rotates the rotor 13 to move the carrier 11 along a predetermined locus to move the yarn 1 held by the carrier 11.
A three-dimensional fabric 2 having an appropriate shape as illustrated in the figure is woven by weaving the three-dimensional fabric 2 together.

In order to rotationally drive the carrier drive mechanism, a partial drive device 30 as previously explained with reference to FIG. 5 is disposed below the plane frame 14 so as to be movable along a linear guide. Alternatively, a motor for rotationally driving each rotor 13 is directly connected to the drive shaft of each rotor 13.

In addition, in this three-dimensional textile loom, an orientation angle setting bar 63a carries the intersection point of the threads l intersected by the movement of the carrier 11 to the vicinity of the loom position, and sets the orientation angle of the threads according to that position; Yarn orientation angle setting devices 62a and 62b each having a thread orientation angle setting device 63b are provided in row and column directions perpendicular to each other.

These orientation angle setting bars 63a, 63b can be inserted into and removed from the yarn 1 by actuators 64a, 64b such as fluid pressure cylinders, and can be inserted into and removed from the yarn 1 along the pair of guide members 61a, 61a and 61b, 61b, respectively. The orientation angle setting bar 63 is moved so that the intersection point of
A bar driving device (not shown) for moving the actuators 64a, 63b along the guide members 61a, 61b is provided inside the guide members 61a, 61b. Further, the multiple pairs of guide members 61a,
61a and 61b, both ends of 61b are connecting plates 65a,
66a and 65b.

66b, and the connecting plates 66a, 66b are movable along cylindrical guides 67a, 67b, so that the connecting plates 65a, 65b are always positioned slightly above the cloth-covered position. There is.

The above-mentioned bar driving device is equipped with an adjustable stopper that can stop the orientation angle setting bars 63a, 63b sent by it at any position near the cloth facing position, and the orientation angle setting bar 63a is controlled by the stopper.

The orientation angle of the threads in the three-dimensional fabric 2 to be woven can be set or controlled by the stop position of 63b.

It goes without saying that the design can be modified as appropriate, such as by rotatably supporting the actuators 64a and 64b on fixed parts as appropriate, or by separately arranging the bar drive device at an appropriate position. Further, the yarn orientation angle setting device 62
A and 62b are provided in sets in the row and column directions, but they may also be fixedly arranged in correspondence with each rotor position.

The three-dimensional textile loom equipped with the above-mentioned weaving section has a flat machine frame 1
4, the canoyer 11 is moved by selective rotational drive of the rotor 13, whereby the yarns 1 are mutually organized,
It is pulled out by a winding device located above the machine frame 14.

The yarn orientation angle setting devices 62a and 62b are connected to the carrier 11.
In order to carry the intersection point of the threads 1 crossed by the movement of the threads 1 to near the loom position, the orientation angle setting bar 63b is inserted between the crossed threads 1 at the position of the orientation angle setting bar 63b. This is to move it to the vicinity.

The movement position in this case is set by the stopper,
The orientation angle of the yarn l in the three-dimensional fabric 2 is determined by the position and the tension acting on the yarn. The position where the intersection of the yarns is carried by the orientation angle setting bars t3a and 63b is as follows:
By controlling the position of the stopper during or during weaving, the orientation angle of the threads in the three-dimensional fabric can be appropriately controlled.

FIGS. 6A to 6D are for explaining the operation of the orientation angle setting bars 70 when the orientation angle setting bars 70 are arranged in correspondence with each rotor position. In this embodiment, a wedge-shaped rod is used as the orientation angle setting bar 70, and FIG. Figure C shows the state in which the intersection points of the yarns l are successively brought to the vicinity of the cloth facing position while resisting the friction of the yarns by the orientation angle setting bar 70 inserted between the yarns. The figure shows a state in which the carrier drive mechanism 12 is driven again after the orientation angle setting bar 70 is extracted.

7A and 7B are for explaining other weaving operations. In this example, the orientation angle setting bar 72 is inserted into the thread 1 in the state shown in FIG. 6B. ), half of the inserted orientation angle setting bars 72 are first moved to the vicinity of the fabric front position and waited there (see figure B), then the remaining half of the orientation angle setting bars 72 are moved, and at that time Then, the orientation angle setting bar 72, which was previously on standby, is pulled out.

According to such a method, the orientation angle of the yarn can be set more reliably, but the orientation angle setting bar 72 does not need to be kept in standby near the cloth facing position. The intersection of the lines is relatively stable.

In the embodiment shown in FIGS. 8A to 8C, a plurality of rotatable rollers 75 are used as the orientation angle setting bar 74. The orientation angle setting bar 74 equipped with the rollers 75 can also be inserted and moved between the yarns 1 so that different rollers 75 come into contact with the yarns on both sides, as shown in FIG. It is also possible to insert the yarns between the yarns 1 in an array along the yarns as shown in FIG. B, and after insertion, change the direction as shown in FIG. When such a roller 75 is used, the roller 75 in contact with each yarn I
rotates in contact with the yarn 1, and the yarn 1 is rotated so that the orientation angle setting bar 74
(Thus, the intersection point can be carried to the vicinity of the fabric without damaging the threads.)

In the above-mentioned yarn orientation angle setting device, as illustrated in FIGS. 9A and 9H, in addition to the above-mentioned orientation angle setting bar, a bar is inserted between the yarns 1 at a position close to the carrier drive mechanism, and is inserted between the yarns 1 at a position close to the carrier drive mechanism. A yarn expanding mechanism 78 can be attached to expand the interval between the yarns.

! 119 The yarn expanding mechanism 78 illustrated in FIGS. Bar support member 79 supporting it for insertion between the strips 1
Alternatively, the yarn expanding bar 80 is installed together with a bar support member 79 so as to be able to move forward and backward with respect to the yarn l, and an orientation angle setting bar is provided at the tip of the bar support member 79. 82 is rotatably provided.

In this way, when the relatively thick yarn expansion bar 80 is used to widen the space between the yarns, and the orientation angle setting bar 82 is inserted between the yarns that have been widened by the insertion, the orientation angle setting bar 82
Insertion of the cloth becomes easy, and the orientation angle setting bar 82 ensures that the intersection point is brought to the vicinity of the cloth facing position.

The yarn expanding mechanism 78 may also have a configuration as illustrated in FIGS. 10A-C.

The yarn expanding mechanism 78 shown in FIG. They are inserted between the threads in an array along the threads as shown in the figure (top), and after insertion, the direction is changed as shown in the figure (bottom) to widen the space between the threads. . The orientation angle setting bar 86 is inserted in this expanded state.

The yarn expanding mechanism 78 shown in FIG.
Insert it between the threads 1 along the threads as shown in (above),
After insertion, the direction is changed as shown in the same figure (bottom) to widen the space between the threads.

Further, the yarn expanding mechanism 78 shown in FIG. It is designed to widen the gap.

The three-dimensional textile loom described above is particularly useful when weaving a textile 2 whose cross-sectional shape changes successively, as shown in FIGS. 1 and 2.

[Effect of the invention] According to the method and apparatus of the present invention as detailed above,
A means is provided to forcibly transport the intersection point of the threads that occur during weaving to the vicinity of the cloth front position, and the orientation angle of the threads is set or controlled depending on the transport position, so it is easy to adjust the required threads. A three-dimensional fabric with orientation angles set can be obtained.

[Brief explanation of the drawing]

1 and 2 are perspective views of different embodiments of the three-dimensional textile loom according to the present invention, FIG. 3 is an enlarged plan view showing details of the carrier drive mechanism, FIG. 4 is a sectional view of the same, and FIG. 6A-D and 7A and 7B are explanatory views of the setting operation of the yarn orientation angle;
Figure A is a side view of main parts showing another embodiment of the orientation angle setting bar;
8B and 8C are explanatory diagrams of the operation of the orientation angle setting bar in FIG. 8A, and FIGS. 9A and 9B are front and side views of an embodiment in which the orientation angle setting bar is provided with a thread expansion mechanism, FIGS. 10A to 10C are front views of main parts showing other structural examples of the thread expansion mechanism. ■ Thread, 2. Three-dimensional fabric, 10.
・Carrier moving surface, 11...Carrier. 12...Carrier drive mechanism, 30...Partial drive device, 41...Connection member, 53.6
3a, 63b, 70, 72, 74, 82.86・Orientation angle setting bar 75・-roller, 78・・Yarn expansion mechanism. Figure 1 Figure 1

Claims (1)

[Scope of Claims] 1. A three-dimensional fabric is created by causing a carrier of yarn arranged on a carrier moving surface to travel along a required trajectory by a carrier drive mechanism, and mutually weaving the yarn held by the carrier. In the weaving method, the intersection point of the threads crossed by the movement of the carrier is carried to the vicinity of the cloth front position by an orientation angle setting bar inserted between the threads, and the position of the threads in the three-dimensional fabric is determined by the carrying position. A method for setting a yarn orientation angle for a three-dimensional textile loom, comprising: setting an orientation angle. 2. The method according to claim 1, wherein the orientation angle of the yarn in the three-dimensional fabric is controlled by controlling the position where the intersection of the yarn is carried by an orientation angle setting bar. How to set the row orientation angle. 3. A three-dimensional textile loom that weaves a three-dimensional fabric by causing a carrier of threads arranged on a carrier moving surface to run along a required trajectory by a carrier drive mechanism, and weaving the threads held by the carrier together to weave a three-dimensional fabric. In this step, an orientation angle setting bar is removably installed between the yarns to carry the intersection point of the threads crossed by the movement of the carrier to the vicinity of the cloth facing position, and the intersection point of the threads carried by the orientation angle setting bar is installed in a removable manner between the threads. A yarn orientation angle setting device for a three-dimensional textile loom, characterized in that the position is a position for setting the orientation angle of yarn in a three-dimensional textile to be woven. 4. The apparatus according to claim 3, characterized in that the position of the intersection of the threads carried by the orientation angle setting bar is made variable in order to control the orientation angle of the threads in the three-dimensional fabric to be woven. Yarn orientation angle setting device for three-dimensional textile looms. 5. The apparatus according to claim 3 or 4, wherein a partial drive device is provided behind the carrier movement surface and moves along the carrier movement surface to selectively drive the carrier drive mechanism; A yarn orientation angle setting device for a three-dimensional textile loom, characterized in that an orientation angle setting bar is provided on a connecting member that is driven following a drive device. 6. The yarn orientation angle for a three-dimensional textile loom, characterized in that in the apparatus according to claim 3 or 4, a large number of orientation angle setting bars are arranged in correspondence with the position of each carrier drive mechanism. Setting device. 7. In the apparatus according to claim 3 or 4, a plurality of rotatable rollers are used as the orientation angle setting bar, and each of the orientation angle setting bars equipped with the rollers is controlled by a separate roller, A yarn orientation angle setting device for a three-dimensional textile loom, characterized in that it is disposed so as to move between the yarns so as to come into contact with the yarns. 8. In the apparatus according to claim 3 or 4, a yarn expansion device is inserted between the yarns in front of the carrier drive mechanism to widen the spacing between the yarns, separately from the orientation angle setting bar. A yarn orientation angle setting device for a three-dimensional textile loom, characterized in that it is equipped with a mechanism.