JPH11181648A - Opening apparatus in weaving machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the deformation of a heald frame driven by a single straight-line driving means. SOLUTION: Plural guide rotators 15 are relatively rotatably supported on a shaft 13 and a plurality of guide rotators are relatively rotatably supported on a shaft 14. The guide rotators 15 and guide rotators 19 correspond one to one in the right and left directions of a weaving machine. An endless rope 24 is hung between the guide rotators 15 and 19 corresponding to right and left. A plurality of linear motors 46, 47, 48 and 49 are supported along the route of the rope 24. The rope 24 is grasped and fixed to gripping mechanisms 52-55 of the linear motors 46-49.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening device for reciprocating a heald frame by operating a reciprocating drive mechanism.

[0002]

2. Description of the Related Art One heald frame and one dedicated motor are
In an opening device that is connected in pairs and drives a plurality of heald frames separately by the dedicated motor, setting of an arbitrary opening pattern,
That is, any arrangement setting for switching the heald frame between the uppermost position and the lowermost position is possible. An opening device of this type is disclosed in Japanese Patent Application Laid-Open No. Sho 59-192747. In this conventional apparatus, one heald frame is moved up and down by two linear motors arranged on the left and right or right below.

A plurality of heald frames are arranged at a predetermined pitch in the front-rear direction of the loom, and the maximum opening angle formed by the upper and lower warps moved by each heald frame is constant. That is, the heald frame on the rear side of the loom has a larger vertical movement amount, and the rear heald frame has the maximum vertical movement amount. The smaller the amount of vertical movement of the heald frame, the better the speed of the loom. The smaller the arrangement pitch of the heald frames, the smaller the amount of vertical movement of the last heald frame. Therefore, reducing the arrangement pitch of the heald frames contributes to speeding up of the loom. Considering only the arrangement pitch of the heald frames, it is possible to set the arrangement pitch of the heald frames to about the thickness of the heald frames. However, it is difficult to make the thickness of the linear motor in the arrangement direction of the heald frame approximately equal to the thickness of the heald frame. At present, the thickness of the linear motor can be reduced only to about 3 to 4 times the thickness of the heald frame. For this reason, in the conventional apparatus disclosed in Japanese Patent Application Laid-Open No. S59-192747 in which a plurality of linear motors are arranged in the direction of arrangement of the heald frames, the arrangement pitch of the heald frames is about three to four times the thickness of the heald frames. In addition, the speed of the loom is hindered.

In the conventional apparatus described in Japanese Patent Application Laid-Open No. 9-250047, four linear motors are connected to the upper, lower, left, and right sides of each heald frame, and the linear motors are inclined at every heald frame along the longitudinal direction of the heald frame. Orientation. The oblique arrangement of the linear motor prevents an increase in the arrangement pitch of the heald frames.

[0005]

Problems to be Solved by the Invention
In a configuration in which four linear motors are connected to the upper, lower, left, and right sides of each heald frame as in the conventional device described in Japanese Patent Application Publication No. 7-212, distortion occurs in the heald frames unless the four linear motors are driven strictly synchronously. Would. Further, as the number of heald frames increases, the number of linear motors for driving increases by four times the number of increased frames, and the load of drive control becomes very large.

The above-mentioned problem can be solved by directly driving the central portion of the heald frame with a single linear motor. However, the heddle frame is bent at the connecting portion between the linear motor and the heald frame, so that a heddle at the center portion of the heald frame may be compressed, and the warp row may be disturbed. Disorders in the warp row degrade the quality of the woven fabric.

A first object of the present invention is to prevent a heald frame from being deformed by driving by a dedicated linear driving means. A second object is to reduce the arrangement pitch of heald frames driven by dedicated linear drive means in addition to the first object.

[0008]

SUMMARY OF THE INVENTION For this purpose, the present invention reciprocates the heald frame by transmitting the driving force of a reciprocating drive mechanism to a first transmission body and a second transmission body connected to the left and right sides of the heald frame. The present invention is directed to an opening device that performs linear movement, and in the invention according to claim 1, a linear driving unit that outputs a driving force in a linear reciprocating direction;
A linear body directly reciprocated by the single linear driving means, and a pair of movement direction converting means for converting reciprocating movement of the linear body into synchronous reciprocating movement of the pair of transmission bodies. A reciprocating drive mechanism was configured.

The linear body reciprocates by the driving force of the linear drive means, and the traveling movement of the linear body is equally transmitted to the first transmitting body and the second transmitting body. Therefore, the first transmission member and the second transmission member are driven by the single linear driving means at the same speed in the same direction, and the heald frame smoothly reciprocates without being deformed.

In the present invention, the linear reciprocating drive of the linear body by the linear drive means means that the linear drive means and the linear drive means are connected to the linear drive means in a state in which the direction of the straight running path of the linear body coincides. It is defined as that the driving force is transmitted by being directly connected to the body.

According to the invention of claim 2, in claim 1,
The thickness of the linear drive means is larger than the thickness of the heald frame, and at least two linear drive means are arranged as a group along the reciprocating path of the linear body, and are driven by the group of linear drive means. At least a part of the space occupied by each of the linear drive means constituting the group is included in the arrangement width region in the arrangement direction of the plurality of heald frames.

The linear driving means for driving one heald frame singly can be arranged with a considerable degree of freedom in the reciprocating direction of the linear body if it is along the reciprocating path of the linear body. For example, if the installation position of the linear drive means for each heald frame is shifted to four places and four linear drive means can be arranged along the reciprocating path of the linear body, the linear drive having a thickness four times the thickness of the heald frame is possible. Even if the means is used, the arrangement pitch of the heald frames can be made slightly larger than the thickness of the heald frames.

According to a third aspect of the present invention, in the second aspect,
The arrangement width region is an extension region of a reciprocating region of a plurality of heald frames driven by the group of linear driving means.
The configuration in which at least a part of the space occupied by the linear driving means is included in the extended area of the reciprocating motion area of the plurality of heald frames driven by the group of linear driving means, the arrangement of the heald frames while avoiding an increase in the size of the loom. The pitch can be reduced.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the pair of movement direction converting means including a guide rotating body having a guide circumferential surface is constituted, and the guide circle is provided. The center of the circumference of the circumference was defined as the rotation center of the guide rotating body, and the rope wound around the circumference of the guide was defined as the linear body.

When the rope wound around the guide circumferential surface reciprocates, the guide rotating body reciprocates and the first transmitting body and the second transmitting body move in the same direction at the same speed. Therefore, the heald frame reciprocates smoothly. The movement direction changing means provided with the rope and the guide rotating body is suitable as means for changing the direction of the driving force of the linear driving means and transmitting it.

According to a fifth aspect of the present invention, in the fourth aspect,
The pair of movement direction converting means includes a lever that swings about the same rotation center as the guide rotating body and reciprocates the transmission bodies, and a length of the lever is equal to the guide circumference. Larger than the radius of the surface.

The presence of the lever longer than the radius of the guide circumferential surface contributes to shortening the stroke of the linear driving means. Reducing the stroke of the linear drive means leads to downsizing of the linear drive means.

According to a sixth aspect of the present invention, in any one of the fourth and fifth aspects, an endless rope is used as the rope. A configuration in which a single endless rope is wound around the guide rotating body of the pair of movement direction converting means is simple in transmitting the reciprocating driving force of the linear driving means to the pair of guide rotating bodies.

According to a seventh aspect of the present invention, in any one of the fourth to sixth aspects, the first motion direction converting means and the second motion direction converting means are inverted right and left of the heald frame. The ropes were arranged so as to be symmetrical, and were arranged so as to intersect the rope between the first motion direction changing means and the second motion direction changing means.

The configuration in which the ropes cross each other is suitable for moving the first transmission member and the second transmission member in the same direction by a single linear driving means. In the invention of claim 8,
In claim 7, the rotation center of the first movement direction conversion means and the rotation center of the second movement direction conversion means are provided within the left and right widths of the heald frame.

Most of the two movement direction changing means fall within the left and right widths of the heald frame, and the lateral width of the loom does not increase. According to the ninth aspect of the present invention, in any one of the fourth to sixth aspects,
In the paragraph, the first movement direction conversion means and the second movement direction conversion means are arranged so as to be symmetrical in translation,
The first motion direction changing means and the second motion direction changing means do not cross each other, and do not cross one of the first and second transmission bodies and do not cross the other. The rotation center of the movement direction changing means on the side intersecting with the rope is provided outside the left and right widths of the heald frame, and the rotation center of the movement direction changing means on the side not intersecting with the rope is It was provided within the left and right width of the heald frame.

The configuration in which the rope does not intersect between the first motion direction changing means and the second motion direction changing means is suitable for increasing the number of linear drive means installed along the reciprocating path of the rope. It is.

According to a tenth aspect of the present invention, in the ninth aspect, among the first transmitting body and the second transmitting body, a through-hole is provided in a transmitting body that intersects with the rope, and the rope is connected to the rope. It was made to pass through the hole and intersect with the transmitter.

Sliding contact between the rope and the transmission body is avoided. According to an eleventh aspect of the present invention, the holder according to any one of the fourth to tenth aspects, further comprising: a holder having a pressure contact arc surface pressed against a winding portion of the rope wound around the guide circumferential surface; Pressing means for pressing the holder against the rope so as to sandwich the portion where the rope is wound between the guide circumferential surface and the holder constitutes a rope fixing means, and the center of the circle of the pressing arc surface is formed. The center of rotation of the guide rotator was used.

The range in which the holder is pressed against the portion where the rope is wound is wide, and the efficiency of gripping and fixing the rope is high. In a twelfth aspect of the present invention, in any one of the first to eleventh aspects, a linear motor is used as the linear driving means.

A linear motor is most suitable as a linear driving means.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1, a pair of shafts 13 and 14 are arranged inside the left and right side frames 11 and 12 of the loom in the longitudinal direction of the loom. As shown in FIG.
A plurality of disk-shaped guide rotating bodies 15, 1
6, 17, and 18 (four in the present embodiment) are supported so as to be relatively rotatable. As shown in FIG.
Include a plurality of disk-shaped guide rotating bodies 19, 20, 21,
22 (four in the present embodiment) are supported so as to be relatively rotatable. A circumferential portion of each of the guide rotating bodies 15 to 22 is partially notched, and a guide groove 23 is formed in a circumferential portion other than the notched portion. Each guide rotating body 15-1
The center of the circle of the guide groove 23 of the guide shaft 8 is at the rotation center 131 of the first shaft 13, and the center of the circle of the guide groove 23 of each of the guide rotating bodies 19 to 22 is at the center of rotation 141 of the second shaft 14.
The radius of the guide groove 23 which is the guide circumferential surface is the same for all the guide rotating bodies 15 to 22.

The guide rotating bodies 15, 16, 17, 18 and the guide rotating bodies 19, 20, 21, 22 correspond one-to-one in the left-right direction of the loom. An endless rope 24 is provided between the pair of left and right guide rotating bodies, that is, between the guide rotating bodies 15 and 19, between the guide rotating bodies 16 and 20, between the guide rotating bodies 17 and 21, and between the guide rotating bodies 18 and 22. , 25,26,
27 are hung. As shown in FIG. 5, the cross-sectional shape of the guide groove 23 is an arc having substantially the same radius as the radius of the ropes 24 to 27, and each of the ropes 24 to 27 is fitted into the guide groove 23. The ropes 24 to 27 intersect at an intermediate position between the pair of guide rotating members. Accordingly, if the ropes 24 to 27 move along the path, the guide rotating bodies 15 to 18 and the guide rotating bodies 19 to 22
14 around the same angle in opposite directions.

As shown in FIG. 1 to FIG.
Rope 24 between 5-18 and guide rotating bodies 19-22
A plurality of support bars 10 (four in the present embodiment) are arranged above and below the paths 27 to 27 along the front-rear direction of the loom. Each support bar 10 has a linear motor 46, 47, 4
8, 49 are supported along the path of the ropes 24-27. The linear motors 46 and 48 are the guide rotating body 15
18 and the crossing position X of the ropes 24 to 27 are vertically opposed, and the linear motors 47 and 49 are vertically opposed between the guide rotating bodies 19 to 22 and the crossing position X of the ropes 24 to 27. doing.

As shown in FIG. 6, the linear motors 46 to 4
9 includes a stator 50 in which a plurality of coils 501 are arranged, a mover 51 having a permanent magnet 511 fixed thereto, and gripping mechanisms 52, 53, 54, 55 fixed to the mover 51.
The ropes 24-27 are gripped and fixed by gripping mechanisms 52-55. The propulsion direction with respect to the mover 51 can be changed by switching the direction of current supply to the coil 501, and the speed of the mover 51 can be controlled by controlling the timing of current supply to the coil 501. The mover 51 reciprocates linearly along the path of the ropes 24 to 27, and the ropes 24 to 27 reciprocate. The reciprocating motion of the ropes 24 to 27 is transmitted to the guide rotating bodies 15 to 22, and the guide rotating bodies 15 to 18 and the guide rotating bodies 19 to 2 are transmitted.
2 reciprocates at the same angle in opposite directions about the shafts 13 and 14.

A lever 28 comprising a pair of side plates 281 and 282 is fixed to each of the guide rotating members 15 to 22 by a pin 29. As shown in FIG. 5, the lever 28 is formed by bending a single plate. The side plates 281 and 282 sandwich the guide rotating members 15 to 22, and
Is in contact with the notch of the guide rotating bodies 15 to 22 and surrounds the notch. Side plate 2
Reference numerals 81 and 282 extend from the guide recess 23 along the radial direction of the guide rotating members 15 to 22. As shown in FIGS. 4 and 5, the receiving body 30 is provided between the side plates 281 and 282.
Is fixed by a pin 31, and a holder 32 and a pair of wedges 3 are provided between the receiving body 30 and the ropes 24 to 27.
3, 34 are interposed. A screw 35 is inserted through the wedge 33, and a screw 35 is screwed into the wedge 34. The wedge 34 is drawn toward the wedge 33 by the tightening rotation of the screw 35, and the holder 32 is urged toward the guide groove 23. The holder 32 has a press-contacting arc surface 321 formed therein. As shown in FIG. 5, the cross-sectional shape of the pressure welding arc surface 321 is an arc having a radius substantially equal to the radius of the ropes 24 to 27,
The press-contacting arc surface 321 is pressed against the winding portions of the ropes 24 to 27 wound around the guide groove 23. The winding portion of the ropes 24 to 27 is pressed and held between the holder 32 and the guide groove 23, and the sliding between the guide grooves 23 and the ropes 24 to 27 is prevented by the pressing and holding action. Receiving body 30, holder 32, wedges 33, 3
4 and the screw 35 constitute rope fixing means.

A first transmitting member 36 is connected to the distal end of the lever 28 on the guide rotating members 15-18, and a second transmitting member is connected to the distal end of the lever 28 on the guiding rotating members 19-22. 37 are connected. The first transmitting body 36 includes a holding body 361 rotatably connected to a distal end portion of the lever 28 via a shaft pin 38, and a bending-deformable transmission rod 362 fixed to the holding body 361. . 2nd transmission body 3
Reference numeral 7 denotes a holding body 371 rotatably connected to the tip end of the lever 28 via a shaft pin 39, and a flexibly deformable transmission rod 372 fixed to the holding body 371. The distance between the shaft pin 38 and the rotation center 131 of the first shaft 13 is equal to the distance between the shaft pin 39 and the rotation center 141 of the second shaft 14. Shaft pins 38, 39 and rotation centers 131, 1
The distance from 41 is larger than the radius of the guide groove 23,
The amount of reciprocating rotation of the shaft pins 38 and 39 accompanying the reciprocation of the ropes 24 to 27 is greater than the amount of reciprocation of the ropes 24 to 27.

As shown in FIG. 1, the transmission rods 362, 3
72 is supported in an upright state. Guide rotating body 15 ~
The reciprocating rotation of 18 is converted into vertical movement of the first transmission body 36, and the reciprocating rotation of the guide rotating bodies 19 to 22 is converted into vertical movement of the second transmission body 37. Since the amount of reciprocating rotation of the shaft pin 38 about the first shaft 13 and the amount of reciprocating rotation of the shaft pin 39 about the second shaft 14 are the same, the transmission rods 362 and 372 move in the same direction. Move the same amount. The vertical movement of the transmission rods 362, 372 is guided by guides 40, 41. Heald frames 42, 43, 44, 45 are installed and supported between the upper ends of the transmission rods 362, 372.
Each heald frame 42 to 45 moves up and down integrally with the first transmission body 36 and the second transmission body 37.

FIG. 6 shows the heald frame 4 when viewed in the direction of arrow R (ie, the width direction of the heald frames 42 to 45) in FIG.
The positional relationship between the linear motors 2 to 45 and the linear motors 46 to 49 in the front-rear direction of the loom (that is, the arrangement direction of the heald frames 42 to 45) is shown. In the present embodiment, the heald frame 42
The arrangement pitch P of the heald frames 42 to 45 is slightly larger than the thickness d of the heald frames 42 to 45, and the thickness D of the linear motors 46 to 49 is about four times the arrangement pitch P. The gripping mechanisms 52 to 55 include a substrate 56, gripping portions 521, 531, 541, 551 protrudingly formed on the substrate 56, and screws 57 screwed to the gripping portions 521 to 551. The protruding position of the gripping portions 521 to 551 on the substrate 56 is the rope 2
It differs depending on positions 4 to 27. The ropes 24-27 are gripped by the tightening rotation of the screw 57.
It is pressed and held at 51. Thickness H of grip portions 521 to 551
Is about the thickness d of the heald frames 42 to 45, and the rope 24 to
The diameter of 27 is about half the thickness d of the heald frames 42 to 47.

The driving force of the linear motor 46 is transmitted to the heald frame 42 via the guide rotating body 15 constituting the first moving direction converting means and the guide rotating body 19 constituting the second moving direction converting means. The driving force of the linear motor 47 is the first
Are transmitted to the heald frame 43 via the guide rotating body 16 constituting the movement direction converting means and the guide rotating body 20 constituting the second movement direction converting means. The driving force of the linear motor 48 is controlled by the guide rotating body 1 that constitutes the first movement direction converting means.
The power is transmitted to the heald frame 44 via the guide rotating body 21 which constitutes the seventh and second movement direction converting means. Linear motor 4
The driving force of No. 9 is transmitted to the heald frame 45 via the guide rotating body 18 forming the first movement direction changing means and the guide rotating body 22 forming the second movement direction changing means.

In the first embodiment, the following effects can be obtained. (1-1) The linear ropes 24 to 27 reciprocate by the driving force of the linear motors 46 to 49 as linear driving means, and the traveling movement of the ropes 24 to 27 is controlled by the first transmitting member 36.
And to the second transmitter 37. That is, the pair of transmission bodies 36 and 37 are synchronously reciprocated by the single linear motors 46 to 49. Therefore, the first transmitting body 36
And the second transmission body 37 is a single linear motor 46-49.
Driven in the same direction at the same speed.
5 smoothly reciprocates without being deformed. (1-2) The output direction of the linear motors 46 to 49 is rope 2.
The ropes 24 to 27 are directly reciprocated by linear motors 46 to 49, respectively. Therefore, an extra mechanism such as a reciprocating swing mechanism between the linear motors 46 to 49 and the ropes 24 to 27 is not required, so that high driving force transmission efficiency is secured and the driving force transmission mechanism is complicated. There is no. (1-3) The heald frames 42 to 45 move up and down within the range E1 between the upper and lower dashed line positions shown in FIG. Also, heald frames 42 to 45
Moves up and down within the range E2 in the arrangement direction shown in FIG. The range E is an arrangement width area in the arrangement direction of the heald frames 42 to 45.
The vertical movement areas of the heald frames 42 to 45 are specified by ranges E1 and E2. A group of linear motors 46 to 4 disposed along the linear portion of the reciprocating path of the ropes 24 to 27 which are linear bodies
Reference numeral 9 is disposed immediately below the plurality of heald frames 42 to 45. The area immediately below the plurality of heald frames 42 to 45 is a heald frame 4
It is an extension area of 2 to 45 vertical movement areas (E1, E2). The extension area is a range K1 shown in FIG. 1 and a range K shown in FIG.
2 is specified. The space occupied by the group of linear motors 46 to 49 disposed along the linear portion of the reciprocating path of the ropes 24 to 27, which are linear bodies, is divided into a plurality of heald frames 42 to 49.
45 extended areas (K1, K2) of the vertical movement areas (E1, E2).
Included in 2).

In the extension area (K1, K2),
Crossing position X of ropes 24-27 and guide rotating body 15-1
8 and the ropes 24 to 27 between the intersection position X and the guide rotating bodies 19 to 22.
Four linear motors 46 to 27 reciprocating linear paths
49 can be provided. Therefore, the heald frames 42-4
Even when the linear motors 46 to 49 having a thickness D that is four times the thickness d of 5 are used, the arrangement pitch P of the heald frames 42 to 45 may be made slightly larger than the thickness d of the heald frames 42 to 45. it can. As a result, the arrangement pitch P of the heald frames 42 to 45 can be set to an arrangement pitch having a gap that can be guided by the guides 40 and 41. Moreover, the linear motors 46 to 49, the ropes 24 to 27, the guide rotating body 1
Since the reciprocating drive mechanism including 5 to 22 and the lever 28 is all housed directly below the heald frames 42 to 45, the loom does not become large. (1-4) When the ropes 24 to 27 wound around the guide recesses 23 serving as the guide circumferential surface reciprocate, the guide rotating bodies 15 to 22 reciprocate and rotate, and the first transmitting body 36 and the second transmitting body 36 are rotated. The transmission body 37 moves in the same direction at the same speed. Therefore, the heald frames 42 to 45 move up and down smoothly. Rope 24-27
The movement direction changing means including the guide rotating bodies 15 to 22 is suitable as means for changing the direction of the driving force of the linear motors 46 to 49 and transmitting the changed driving force to the heald frames 42 to 45. (1-5) A configuration in which a single endless rope 24-27 is wound around a pair of guide rotating bodies on the left and right is a linear motor 4
This is convenient for transmitting the reciprocating driving force of 6 to 49 to the pair of guide rotating bodies on the left and right. (1-6) First movement direction changing means comprising guide rotating bodies 15 to 18 and lever 28, and guide rotating bodies 19 to 22
And the second movement direction changing means including the lever 28
The heald frames 42 to 45 are arranged so as to be inverted symmetrically on the left and right sides. Guide rotating bodies 15 to 18 and guide rotating body 19
The configuration to cross the ropes 24-27 between
The first transmission body 3 is driven by a single linear motor 46-49.
It is suitable for moving the 6th and 2nd transmission bodies 37 in the same direction. (1-7) First shaft 1 supporting guide rotating members 15 to 18
3 and the second shaft 14 supporting the guide rotating bodies 19 to 22
Are provided within the left and right widths of the heald frames 42 to 45. Therefore, most of the first motion direction changing means and the second motion direction changing means fit within the left and right widths of the heald frames 42 to 45, and the lateral width of the loom does not increase. (1-8) The portions where the ropes 24 to 27 are wound around the guide recesses 23 of the guide rotating bodies 15 to 22 are guided by the pressing contact means including the receiving body 30, the wedges 33 and 34, and the screws 35. Pressure contact arc surface 3 of holder 23 and holder 32
21. Since the pressure contact range of the holder 32 with respect to the winding portion of the ropes 24 to 27 is wide, the efficiency of gripping and fixing the ropes 24 to 27 is high. (1-9) The linear motors 46 to 49 are optimal as linear driving means. (1-10) The difference between the configurations of the linear motors 46 to 49 is only the difference in the protruding positions of the grippers 521 to 524 with respect to the substrate 56. Gripping portions 521 to substrate 56
The type of linear motor depending on the difference
The smaller the cost of the linear motor, the better. The linear motor 46 and the linear motor 49 have the same configuration,
The linear motor 47 and the linear motor 48 have the same configuration. The arrangement of the linear motors 46 to 49 shown in FIG. 6 only requires the use of two types of linear motors, linear motors 46 and 49 and linear motors 47 and 48 in which the protruding positions of the holding portions 521 to 524 with respect to the substrate 56 are different. It is. (1-11) The length of the lever 28 is larger than the radius of the guide groove 23. Assuming that the length of the lever 28, that is, the length from the rotation centers 131 and 141 to the shaft pins 38 and 39 is twice the radius of the guide groove 23, the amount of vertical movement of the heald frames 42 to 45 is equal to that of the linear motors 46 to 49. Double the stroke. Therefore, the presence of the lever 28 is
Up to 49 strokes.
6 to 49 can be reduced in size.

Next, a second embodiment shown in FIGS. 7 and 8 will be described. The same components as those in the first embodiment are denoted by the same reference numerals. In this embodiment, the bent base end 283 of the lever 28 surrounds the guide groove 23 of the guide rotating bodies 15 to 18 and 68 constituting the first movement direction changing means. The receiving body 30, the holder 32, the wedges 33, 34, and the screw 35 are interposed between the bent base end 283 and the guide groove 23. A support block 58 is fixed between the distal ends of the side plates 281 and 282 by pins 59, and a support shaft 60 is rotatably supported by the support block 58. A vertical body 61 composed of a pair of side plates 611 and 612 and a connecting shaft 613 is supported on the support shaft 60.
A transmission rod 62 that can be flexibly deformed is fixed to 13. The coupling shaft 613 is rotatable relative to the side plates 611 and 612. The vertical body 61 and the transmission rod 62 constitute a first transmission body. The same mechanism is used for the guide rotating body 1
9 (the other four are not shown) are also configured as a second movement direction converting means and a second transmitting body.

The guide rotating body on the side of the first movement direction changing means and the guide rotating body on the side of the second movement direction changing means are arranged so as to be symmetrical in parallel movement. Guide rotating body 1
Endless ropes 63, 64, 65, 66, 67 are wound around 9 and the guide rotating bodies 15 to 18, 68. The ropes 63 to 67 pass through bore holes 614 between the side plates 611 and 612. The ropes 63 to 67 are driven back and forth by a linear motor 69.

The first shaft 13 for supporting the guide rotating bodies 15 to 18 and 68 is outside the width of the heald frame 42 (the other four are not shown), and the second shaft 14 for supporting the guide rotating body 19 is provided. Is within the width of the heald frame 42.

The following effects are obtained in the second embodiment. (2-1) The installation space of the linear motor along the lower straight path of the ropes 63 to 67 is larger than the installation space of the linear motor along the upper straight path of the ropes 63 to 67. The configuration in which the first shaft 13 is provided outside the width of the heald frame 42 and the ropes 63 to 67 do not intersect between the first movement direction converting means and the second movement direction converting means is the same as the rope 63 It is suitable for increasing the installation space of the linear motor 69 along the reciprocating path of ~ 67. (2-2) The ropes 63 to 67 pass through the bore 614 of the vertical body 61 constituting the first transmitting body and intersect with the vertical body 61. The sliding contact between the ropes 63 to 67 and the vertical body 61 Be avoided. Rope 63-67 in through hole 614 of transmission body
The configuration that passes through prevents the ropes 63 to 67 from being damaged by sliding contact.

Next, a third embodiment shown in FIG. 9 will be described. The same components as those in the first embodiment are denoted by the same reference numerals. In this embodiment, a boring device 70 is fixed to the ropes 24 to 27, and the ropes 24 to 27 cross the boring device 70 through the boring holes 701 of the boring device 70. The width of the through hole 701 is larger than the diameter of the ropes 24 to 27, and even if the ropes 24 to 27 and the boring tool 70 are in sliding contact, the degree of sliding contact is small. Therefore, damage to the ropes 63 to 67 due to sliding contact is suppressed.

Next, a fourth embodiment shown in FIG. 10 will be described. The same components as those in the second embodiment are denoted by the same reference numerals. In this embodiment, the first shaft 13 on the first movement direction changing means side and the second shaft 13 on the second movement direction changing means side
Shaft 14 is outside the width of the heald frame 42, and the guide rotator 1
The ropes 24 wound around 5 and 19 intersect at an intermediate position between the two guide rotating bodies 15 and 19. Intersection position X
The installation space of the linear motor along the linear path on the lower side of the rope 24 between the guide rotating bodies 15 and 19 is equal to the straight line on the upper side of the rope 24 between the intersection position X and the guide rotating bodies 15 and 19. It is larger than the installation space of the linear motor along the route. The configuration in which the shafts 13 and 14 are arranged outside the width of the heald frame 42 is suitable for increasing the installation space for the linear motors 46 to 49, 71 and 72 along the reciprocating path of the rope 24.

Next, a fifth embodiment shown in FIG. 11 will be described. The same components as those in the first embodiment are denoted by the same reference numerals. In this embodiment, a reciprocating drive mechanism having the same configuration as the reciprocating drive mechanism provided with the first motion direction converting means and the second motion direction converting means in the first embodiment is arranged vertically in two stages. I have. A configuration in which the two shafts 13 support a plurality of guide rotating bodies 15 on the first motion direction converting means side and the two shafts 14 support a plurality of guide rotating bodies 19 on the second motion direction converting means side. The number of the linear motors 46 to 49 included in the extension area of the vertical movement area of the heald frame 42 is increased.

In the present invention, the sixth embodiment shown in FIG. 12, the seventh embodiment shown in FIG. 13, and the eighth embodiment shown in FIG.
This embodiment and the ninth embodiment shown in FIG. 15 are also possible. 12 to 15 show the heald frame 77 as viewed in the width direction of the heald frame 77 and the linear motors 73 and 7 as in FIG.
The positional relationship between the heald frames 4 and 75 in the arrangement direction of the heald frames 77 is shown in a simplified manner. The arrangement pitch P of the heald frames 77 in each embodiment is the same as that in the first embodiment. In each of the embodiments, the first
The arrangement position of the linear motor in the step is immediately above the straight path on the upper side of the rope 78 between the first movement direction changing means and the intersection position X in the first embodiment. The position of the second-stage linear motor from the top is immediately below the lower straight path of the rope 78 between the first movement direction converting means and the intersection position X. The position of the third stage linear motor from the top is determined by the position of the rope 78 between the second movement direction changing means and the intersection position X in the first embodiment.
Directly above the straight path on the upper side of. The position of the fourth linear motor from the top is directly below the lower straight path of the rope 78 between the second movement direction changing means and the intersection position X.

The linear motor 74 according to the eighth embodiment shown in FIG. 14 is similar to the linear motor 4 according to the first embodiment.
Same as 6,49. The configuration of the linear motor 73 in the sixth embodiment of FIG. 12 and the seventh embodiment of FIG. 13 is such that the thickness D1 is smaller than the thickness D of the linear motors 46 and 49 in the first embodiment. Except for this, it is the same as the linear motors 46 and 49. The configuration of the linear motor 75 in the ninth embodiment shown in FIG. 15 is different from that of the linear motors 46 and 49 except that the thickness D2 is larger than the thickness D of the linear motors 46 and 49 in the first embodiment.
Is the same as That is, the gripping portions 76 of the linear motors 73 to 75 are arranged at the extreme ends in the directions of the thicknesses D1 and D2 within the range of the thicknesses D1 and D2 of the linear motors 73 to 75.

In the sixth embodiment shown in FIG. 12 and the seventh embodiment shown in FIG. 13, the thickness D1 of the linear motor 73 is three times the arrangement pitch P of the heald frames 77. When arranging the linear motors 73 as shown in FIG. 12 or FIG. 13, only one type of linear motor 73 needs to be prepared.

In the eighth embodiment shown in FIG. 14, the thickness D of the linear motor 74 is four times the arrangement pitch P of the heald frames 77. In the case where the linear motors 74 are arranged as shown in FIG. 14, only one type of linear motor 74 needs to be prepared. In this case, a part of the two linear motors 74 protrudes from the extension area (K1, K2) of the heald frame 77, but one type of linear motor 74 is sufficient even if the number of heald frames 77 becomes nine or more.

In the ninth embodiment shown in FIG. 15, the thickness D2 of the linear motor 75 is five times the arrangement pitch P of the heald frames 77. When the linear motors 75 are arranged as shown in FIG. 15, only one type of linear motor 75 needs to be prepared. In this case, some of the linear motors 75 protrude from the extended area (K1, K2) of the heald frame 77, but one type of linear motor 75 is sufficient if the number of heald frames 77 is up to 16.

Next, a tenth embodiment of FIG. 16 will be described. The same components as those of the fourth embodiment are denoted by the same reference numerals. In this embodiment, the auxiliary rope 79 connected to the rope 24 by the connecting member 80 is drawn out of the side frame 12 and arranged. The auxiliary rope 79 drawn out of the side frame 12 is guided by a plurality of guide rollers 81, and a plurality of linear motors 82 are disposed along a linear path of the auxiliary rope 79 guided by the guide rollers 81. Have been. At least a part of the occupied space of each of the plurality of linear motors 82 is in the arrangement width region in the arrangement direction of the plurality of heald frames 42.

A linear motor 8 is provided outside the side frame 12 outside the extended region of the reciprocating motion region of the plurality of heald frames 42.
2 facilitates maintenance of the linear motor 82.

In the present invention, the following embodiments are also possible. (1) A rotary motor having a screw shaft as an output shaft is employed as the linear output means. In this case, a screw shaft may be screwed into the mechanism for gripping the rope, and the gripping mechanism may be reciprocated linearly by reciprocating rotation of the screw shaft.

The inventions other than those described in the claims which can be grasped from the above embodiments will be described together with their effects. (1) The linear driving means according to any one of claims 1 to 9, further comprising: a gripper for gripping the linear body; and a drive body for reciprocatingly driving the gripper. The opening device in the loom, wherein the portion is disposed at the extreme end in the thickness direction within the range of the thickness of the drive main body in the arrangement direction of the heald frames.

A large number of heald frames can be driven by one type of linear driving means. In the linear motor, the stator 50 and the mover 51 constitute a driving body. (2) In any one of claims 1 to 9,
An opening device in a loom in which a first movement direction changing means is supported by a pair of first shafts and a second movement direction changing means is supported by a pair of second shafts.

The number of linear motors included in the extension area of the vertical movement area of the heald frame increases.

[0057]

As described in detail above, in the present invention in which a pair of transmission bodies connected to the left and right sides of the heald frame are synchronously reciprocated by a single linear driving means, the driving of the exclusive driving means is performed. Thus, an excellent effect of preventing deformation of the heald frame due to the above can be obtained.

The linear drive means having a thickness larger than the thickness of the heald frame is arranged as a group along the reciprocating path of the linear body, and the arrangement direction of the plurality of heald frames driven by the group of linear drive means is arranged. In the invention in which at least a part of the space occupied by each of the linear drive means constituting the group is included in the array width area, the deformation of the heald frame can be prevented, and the heald frame driven by the dedicated drive means can be prevented. This has an excellent effect that the arrangement pitch can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment.

FIG. 2 is a perspective view showing a first movement direction converting means side.

FIG. 3 is a perspective view showing a second movement direction converting means side.

FIG. 4 is a partially cutaway front view incorporating an enlarged sectional view.

FIG. 5 is a partially omitted plan sectional view.

FIG. 6 is a layout diagram showing the positional relationship between the heald frame and the linear motor in the arrangement direction of the heald frames.

FIG. 7 is a front view showing the second embodiment and incorporating an enlarged sectional view.

FIG. 8 is a perspective view showing a first movement direction conversion unit side.

FIG. 9 is a perspective view showing a third embodiment.

FIG. 10 is a front view showing a fourth embodiment.

FIG. 11 is a front view showing a fifth embodiment.

FIG. 12 is a simplified layout diagram showing a positional relationship between a heald frame and a linear motor in the arrangement direction of the heald frames in a sixth embodiment.

FIG. 13 is a simplified layout diagram showing a positional relationship between a heald frame and a linear motor in an arrangement direction of the heald frames in a seventh embodiment.

FIG. 14 is a simplified layout diagram showing a positional relationship between a heald frame and a linear motor in the arrangement direction of the heald frames in the eighth embodiment.

FIG. 15 is a simplified layout diagram showing a positional relationship between a heald frame and a linear motor in the arrangement direction of the heald frames in the ninth embodiment.

FIG. 16 is a front view showing a tenth embodiment.

[Description of Signs] 13 ... A first axis which is a rotation center of the first movement direction conversion means, 14 ... A second axis which is a rotation center of the second movement direction conversion means, 15, 16, 17, 18 , 68... Guide rotating bodies constituting first movement direction converting means, 19, 20, 2
1, 22: guide rotating body constituting second movement direction changing means, 23: guide concave streak which is a guide circumferential surface, 24, 2
5, 26, 27, 63, 64, 65, 66, 67 ... a rope which is a linear body, 30 ... a receiving body which constitutes press-contact means which is a part of the rope fixing means, 32 ... a holder which constitutes rope fixing means , 33, 34... Wedges constituting pressure contact means;
35: a screw constituting a press-contact means; 36: a first transmission body;
37 ... second transmitter, 42, 43, 44, 45, 77 ...
Heald frame, 46, 47, 48, 49, 69, 71, 72,
73, 74, 75, 82 ... linear motors, 521, 52
2, 523, 524, 76: gripping part, 61: vertical solid body constituting a transmission body, 614: bored hole, 62: transmission rod constituting a transmission body, 79: auxiliary rope as a linear body.

Claims (12)

[Claims] 1. An opening device for transmitting a driving force of a reciprocating drive mechanism to a first transmission body and a second transmission body connected to both left and right sides of a heald frame to linearly reciprocate the heald frame. A linear driving means for outputting a driving force to the linear driving means; a linear body directly driven by the single linear driving means in a reciprocating manner; and converting the reciprocating movement of the linear body into a synchronous reciprocating movement of the pair of transmitting bodies. An opening device in a loom comprising said reciprocating drive mechanism comprising a pair of movement direction converting means. A thickness of said linear drive means is larger than an arrangement pitch of said plurality of heald frames; at least two linear drive means are arranged as a group along a reciprocating path of said linear body; 2. The loom according to claim 1, wherein at least a part of the space occupied by each of the linear drive units constituting the group is included in an arrangement width region in the arrangement direction of the plurality of heald frames driven by the group of linear drive units. Opening device. 3. The shedding apparatus according to claim 2, wherein the arrangement width region is an extension region of a reciprocating region of the plurality of heald frames driven by the group of linear driving means. 4. The pair of movement direction converting means includes a guide rotating body having a guide circumferential surface, a center of the guide circumferential surface is at a rotation center of the guide rotating body, and the linear body is The shedding device according to any one of claims 1 to 3, wherein the shedding device is a rope wound around the guide circumferential surface. 5. The pair of movement direction changing means includes a lever which swings around the same rotation center as the guide rotating body to give reciprocating motion to each of the transmitting bodies, and the length of the lever is set to be equal to the length of the lever. The shedding device according to claim 4, wherein the shedding device is larger than a radius of the guide circumferential surface. 6. The rope according to claim 4, wherein said rope is an endless rope.
An opening device in a loom according to any one of claims 5 to 7. 7. The first movement direction changing means and the second movement direction conversion means are arranged so as to be inverted symmetrically on the left and right sides of the heald frame, and the rope moves the first movement direction. The shedding device according to any one of claims 4 to 6, wherein the opening device is disposed so as to intersect between the direction changing means and the second movement direction changing means. 8. The shedding apparatus for a loom according to claim 7, wherein the rotation center of said first movement direction changing means and the rotation center of said second movement direction changing means are within the left and right widths of said heald frame. 9. The first movement direction conversion means and the second movement direction conversion means are arranged so as to be symmetrical in parallel movement, and the rope is connected to the first movement direction conversion means. In order not to intersect with the second movement direction changing means,
The first transmission member and the second transmission member are disposed so as to intersect one of the first transmission member and the second transmission member so as not to intersect with the other. The loom according to any one of claims 4 to 6, wherein the rotation center of the movement direction converting means on the side not intersecting the rope is located within the left and right widths of the heald frame. Opening device. 10. A transmission hole intersecting with the rope among the first transmission member and the second transmission member has a through-hole penetrating therethrough, and the rope passes through the through-hole and passes through the transmission member. The shedding device in the loom according to claim 9, which intersects with the opening device. 11. A holder having a pressure contact arc surface pressed against a portion where the rope is wound around the guide circumferential surface, and winding the rope between the guide circumferential surface and the holder. 11. A rope fixing means comprising pressure-contact means for pressing the holder against the rope so as to sandwich the portion, wherein the center of the pressure-contacting arc surface is the center of rotation of the guide rotating body. Any one of
Item 7. An opening device in a loom according to Item 6. 12. The shedding apparatus according to claim 1, wherein said linear drive means is a linear motor.