JP2011042889A - Device for moving movable piece for four shaft loom - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for moving a piece for a four shaft loom which smoothly carries out the turn of the movable piece having a threading hole for guiding a bias yarn from the back row to the front row, or from the front row to the back row, and prevents the yarn passed through the guide hole of the movable piece from being twisted at the turn of the movable piece. <P>SOLUTION: The device for moving the movable piece for the four shaft loom is constituted as follows. Hourglass-shaped rotating bodies are provided in facing positions so as to be parallel to the horizontal direction, and the movable pieces turning by using cam grooves starting from one point on the large diameter portion at one end side through a small diameter portion and reaching a position of the large diameter portion on the other side, turned by 360&deg;, as a guide, movable from the front row to the back row, and from the back row to the front row, and having the threading holes penetrating the movable pieces in a vertical direction in the inner end parts are provided. The movable pieces move between the front row and the back row one by one after the turn by being pushed so that third yarns (bias yarns) and fourth yarns (bias yarns) fed to the crossing points of first yarns (warp yarns) and second yarns (weft yarns) may not be woven. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  According to the present invention, the moving piece for weaving the third yarn (oblique yarn) and the fourth yarn (oblique yarn) can be efficiently moved at the intersection of the first yarn (warp yarn) and the second yarn (weft yarn). The present invention relates to a moving device for a moving piece for a four-axis loom.

  Generally, a woven fabric is composed of warp and weft (biaxial woven fabric), and the loom has a heel that opens a warp stretched between a delivery roll and a take-up roll, and a weft at an opening of the warp by the heel. Is constructed by a rapier (or a shuttle punching machine) for inserting a thread and a hook for striking the weft thread inserted by the rapier. The fabric woven by this loom shows a non-deformation force in the direction in which the warp and weft pass, but has a drawback of being easily deformed in an oblique direction (bias direction). It could not be applied to those requiring non-deformation force in all directions (transversely oblique). For this reason, recently, a four-axis woven fabric has been produced which includes two diagonal yarns that are obliquely intersected with the warp and weft yarns and exhibits a non-deformable force in all directions.

An outline of a conventional four-axis loom is shown in FIGS. 10 and 11, respectively. FIG. 10 shows that the first slider 101 and the second slider 102 that are passed through the holes at the tips of the first yarns a and a are horizontally opposed to each other, and the first slider 101 and the second slider 102 are alternately arranged. The opening 103 of the 1st thread | yarn a is made by sliding oppositely, the 2nd thread | yarn b is inserted in the opening 103 by a rapier (weft insertion means of a non-weaving loom), and insertion of the 2nd thread | yb by this rapier A rotating arm 104 that strikes every time is provided, and the third yarn c and the fourth yarn d that are obliquely supplied to the intersection (intersection or intersection) of the first yarn a and the second yarn b are provided. Moving pieces 106 having guide holes (threading holes) 105 for guiding are arranged in two rows in the front and rear positions above the opening 103 of the first thread a, and each moving piece 106 is moved from the front path (left side) to the rear path ( Turn right), back (right) to front (left) , As shown in FIG. 11, it has been to carry out the pushing operation of the pusher 107. (See Japanese Patent No. 3076975). In the four-axis loom of Japanese Patent No. 3076975, the moving piece 106 having the guide hole 105 for guiding the third yarn c and the fourth yarn d is operated by pushing the pusher 107 in the turn from the front row to the rear row and from the rear row to the front row. It was supposed to be done only.
Japanese Patent No. 3076975

  However, as described above, the moving piece 106 moves linearly by pushing the pusher 107 and does not rotate at the time of turn. Therefore, the third thread (diagonal thread) c and the fourth thread (oblique thread) are inserted into the guide hole of the moving piece. Since the supply drum supplying d is rotating, if the cross section of the third yarn c and the fourth yarn d is flat like a square or carbon fiber, twisting occurs and the weaving surface is disturbed. The strength becomes weak. In the case of the loom of Japanese Patent No. 3076975, the loom cannot be reversed (reversed) at the time of yarn breakage. It was.

  In view of the above points, the present invention supplies a moving piece having a threading hole for guiding an oblique thread to the moving piece at the time of turn from the rear road to the front road and from the front road to the rear road. A moving piece moving device for a four-axis loom that rotates (forward / reverse) in accordance with the rotation (forward / reverse) of the feed drum so that the thread passed through the threading hole of the moving piece is not twisted. The purpose is to provide.

  In order to achieve the above object, the present invention provides a drum-shaped rotating body having a rotation axis parallel to each other through an annular traveling path of a moving piece, and the drum-shaped rotating body starts from a large diameter portion on one end side. A single cam groove having an end point in the large diameter portion on the other end side is provided symmetrically while drawing a spiral while drawing a spiral, and the moving piece having a threading hole is used as the guide for the annular travel. It is characterized in that it can move on the turn road connecting the back road from the back road to the front road, and is supplied to the intersection of the first yarn (warp) and the second yarn (weft). The third yarn (oblique yarn) and the fourth yarn (oblique yarn) are turned so that the moving piece having the threading hole is rotated in accordance with the rotation of the supply drum so that the oblique yarn is not twisted. Configured.

  According to a second aspect of the present invention, the moving piece includes a main portion having a threading hole on the inner end side and a pin fitted to the cam groove of the hourglass-shaped rotating body on the outer end side. The upper wing part obliquely upward from the upper surface of the main part and the lower wing part obliquely downward extend in a reverse shape, and the upper and lower parts of the annular traveling path are provided at the outer ends of the upper wing part and the lower wing part. A sliding body that can be engaged with a recess provided in an annular shape is provided, and the posture of the moving piece during traveling is maintained, and the threading hole can be stably held horizontally.

  Furthermore, the invention according to claim 3 is characterized in that the moving piece in the annular traveling path is in close contact with the main part in a state where the upper wing part and the lower wing part are laminated. The threading holes were arranged closely in the inner front path and the rear path.

  Furthermore, in the invention according to claim 4, the movement of the moving piece in the front road and the rear road of the annular traveling path is based on the moving force of the moving piece moving on the turn path using the cam groove of the hourglass-shaped rotating body as a guide. It is characterized by being a drive source, and is configured so that a special drive source for moving the moving piece is unnecessary.

  According to the present invention, the third yarn (oblique yarn) and the fourth yarn (oblique yarn) are supplied to the intersection (intersection or intersection) with the first yarn (warp) and the second yarn (weft). In addition to obtaining a four-axis woven fabric that exhibits non-deformation force in all directions, in particular, a moving piece having a threading hole through which the third and fourth threads (diagonal threads) pass is supplied to the thread. Even if the cross section of the diagonal thread is flat like square or carbon fiber, it is not twisted, the woven surface is disturbed, and the strength is weak There is no end to it. In particular, since the loom cannot be reversed (reversed) at the time of yarn breakage, various excellent effects such as a fatal inconvenience that a weaving flaw occurs at each yarn breakage are exhibited.

  According to the second aspect of the present invention, the traveling position of the moving piece is maintained, and the threading hole can be stably held horizontally. Therefore, the intersection between the first thread (warp) and the second thread (weft) The third yarn (oblique yarn) and the fourth yarn (oblique yarn) to be supplied to have an excellent effect.

  Furthermore, according to the third aspect, the moving pieces in the front road and the rear road of the annular traveling path are closely arranged in a state where the upper wing portion and the lower wing portion are laminated. This provides an excellent effect that the amount of movement of the through hole can be reduced.

  Furthermore, according to claim 4, the movement of the moving piece in the front path and the rear path of the annular traveling path is based on the moving force of the moving piece moving on the turn path using the cam groove of the hourglass-shaped rotating body as a guide. Therefore, the excellent effect that the movement of the moving piece of the oblique thread can be simplified can be achieved.

  The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 is an enlarged plan view of a four-axis fabric, where (a) is an intersection at an intersection, (b) is an intersection at an intersection, FIG. 2 is a plan view showing a travel path and a moving mechanism of a moving piece, and FIG. FIG. 4 is a side view of the moving piece, FIG. 5 is a plan view of the moving piece, FIG. 6 is a perspective view showing the main part of the moving piece in close contact, and FIG. 7 is a drum shape. The left half figure of a rotary body is shown, (a) is a side view, (b) is the figure from a small diameter side, FIG. 8 shows the right half figure of a drum-shaped rotary body, (a) is a side view, (b) FIG. 10 is a view from the small diameter side, and FIGS. 9A to 9E are views showing the cam groove of the hourglass-shaped rotating body and the turn state of the moving piece.

  As shown in FIGS. 1 (a) and 1 (b), the four-axis woven fabric 1 is formed with an opening 103 as shown in FIG. 10 with the first yarn (warp) a and a, and the second yarn (weft) is formed in the opening. b is inserted by a rapier (it may be a weft insertion of another non-weaving loom) and the rotary arm 104 is operated to beat and the first thread (warp) a and the second thread (weft) b are crossed. In the part (intersection or intersection) K, the third thread (left diagonal thread = vertical stripe pattern) c and the fourth thread (right diagonal thread = dot pattern) d are woven. These show the non-deformation force in the oblique direction. In FIG. 1 (a), the diagonal axes overlap at the intersection of the warp and weft, so the four axes overlap at one point. In FIG. 1 (b), the diagonal lines overlap at the intersection of the warp and weft, so the three axes are at one point. It is not bulky because it overlaps.

  The third thread c and the fourth thread d are passed through the threading hole 3 of the moving piece 2. As shown in FIG. 2, the moving piece 2 moves on an annular traveling path 6 disposed oppositely between the hourglass-shaped rotating bodies 5 and 5 'having the rotation shafts 4 and 4' in parallel. The annular traveling path 6 rotates the moving piece (forward rotation / reverse rotation) in accordance with the rotation (forward rotation / reverse rotation) of the supply drum which supplies the moving piece with the oblique thread (the third thread c and the fourth thread d). 3 and FIG. 4, it is formed in a gap (space) between the upper block 6 a and the lower block 6 b so as to be able to run in an annular shape. The moving piece 2 has a threading hole 3 on the inner end side and a pin 7 implanted on the outer end side.

  On the peripheral surface of the drum-shaped rotating body 5, 5 ', a single cam having a large diameter portion at one end as a starting point S, a spiral portion having a small diameter portion and an end point F at the large diameter portion on the other end side. The grooves 8 are provided symmetrically. Thus, the rotating shafts 4 and 4 'are rotated in the same direction and at the same speed by driving the driving sources 9 and 9' connected to the rotating shafts 4 and 4 '(which may be electrically connected so that they can be synchronously driven). The moving piece 2 engaged with the cam groove 8 via the pin 7 by the rotation of the drum-shaped rotating body 5, 5 ′ uses the cam groove 8 as a guide from the rear path 6 </ b> B to the front path. 6F and the turn path 6T which connects the rear path 6B from the front path 6F can be moved.

  The moving piece 2 has an upper wing part 2b extending obliquely upward to the left on the upper surface as shown in FIG. 5 around a main part 2a having a threading hole 3 on the front end side and a pin 7 on the outer end side, A lower wing portion 2c extending obliquely downward to the right is provided on the lower surface in a diagonally anti-lateral direction. The saddle-shaped sliding bodies 2b 'and 2c' provided at the outer ends of the upper wing portion 2b and the lower wing portion 2c are provided with recesses 6a 'formed in the upper block 6a and the lower block 6b of the annular traveling path 6, respectively. 6b 'is slidably engaged with the movable piece 2 so that the posture of the moving piece 2 is maintained when traveling on the annular traveling path 6 so that the threading hole 3 can always be kept horizontal.

  Further, as shown in FIG. 6, the moving piece 2 is provided with the upper wing portion 2b and the lower wing portion 2c in an obliquely anti-backward direction centering on the main portion 2a, and the threading holes 3 are closely arranged. Therefore, the moving amount of the moving piece 2 having the threading hole 3 through which the oblique thread is passed can be reduced.

  The cam grooves 8 formed on the peripheral surfaces of the hourglass-shaped rotating bodies 5 and 5 'have a diameter that draws a steep spiral from the starting point S of the large-diameter portion on one end side as shown in FIGS. 7 (a) and 7 (b). As shown in FIGS. 8 (a) and 8 (b), the intermediate point N at the center opposite to the small part is steeply inclined from the intermediate point N of the small-diameter part to the end point F of the large-diameter part on the other end side. Draw a spiral. That is, the pin (cam follower) 7 of the moving piece 2 at the end of the front path 6F or the rear path 6B of the annular traveling path 6 is brought into a large diameter portion on one end side by the rotation of the drum-shaped rotating bodies 5 and 5 '. It is drawn into the cam groove 8 from the provided starting point S, and is transferred to the rear path 6B or the front path 6F from the end point F provided in the large diameter portion on the other end side through the turn path 6T.

  The movement of the moving piece 2 in the front path 6F and the rear path 6B of the annular traveling path 6 moves on the turn path 6T using the cam groove 8 of the hourglass-shaped rotating body 5, 5 'as a guide, and the movement force The driving source is to press the moving pieces 2 arranged on the front path 6F or the rear path 6B. That is, a special drive source is not required for moving the moving piece 2 of the oblique thread, and the moving system can be further simplified. In addition, in order to assist the movement of the moving piece 2 on the front path 6F and the rear path 6B of the annular traveling path 6, an auxiliary cam (see FIG. 5) that acts on the pin 7 of the moving piece 2 along the front path 6F and the rear path 6B. (Not shown) may be installed.

  Next, the effect | action of this application is demonstrated based on FIG. First, two drum-shaped rotating bodies 5 and 5 '(shown in the upper and lower directions in FIG. 2) with the rotating shafts 4 and 4' in parallel are connected via an annular traveling path 6 of the moving piece 2. Opposite installation. The drum-shaped rotating bodies 5 and 5 'are symmetrical with a single cam groove 8 having a large diameter portion on one end side as a starting point S, a spiral portion and a small diameter portion, and an end point F in the large diameter portion on the other end side. Is provided.

  Next, as shown in FIG. 9 (a), when the hourglass-shaped rotator 5, 5 'rotates in the direction of arrow Y1 (clockwise direction) by the action of the drive source, the rear path 6B and the front path of the annular traveling path 6 are obtained. Of the moving pieces 2 arranged closely (intermittently in the figure) on 6F, one moving piece 2 (indicated by H) located at the end (close to the hourglass rotating body) The pin 7 enters the starting point S of the cam groove 8.

  Next, as shown in FIG. 9B, when the rotation of the hour drum-shaped rotating body 5, 5 ′ is slightly advanced, the pin 7 of the moving piece H is guided by the cam groove 8 and 45 around the threading hole 3. Tilt to °. Thereafter, the moving piece H enters the turn path 6T and descends in the direction of arrow Y2 or rises in the direction of arrow Y3. Thus, the moving piece 2 on the rear path 6B and the front path 6F passes through the turn path 6T, and then moves to the front path 6F and the rear path 6B. Move in the Y5 direction.

  Further, as shown in FIG. 9 (c), the rotation of the hourglass rotator 5, 5 'advances, and the cam groove 8 reaches an intermediate point of the small diameter portion of the hourglass rotator. The moving piece H passing through the turn path 6T is turned 90 ° from the state passing through the rear path 6B and the front path 6F.

  Next, as shown in FIG. 9 (d), the rotation of the hourglass-shaped rotating bodies 5, 5 'further proceeds, and the moving piece H descends the turn path 6T in the direction of the arrow Y2, and the descending point (front path 6F and Since the pin 7 of the moving piece H is guided and rotated by the cam groove 8 at the boundary point with the rear path 6B, the pin 7 is inclined at 135 ° around the threading hole 3.

  Next, as shown in FIG. 9 (e), the hourglass rotator 5, 5 ′ is further rotated, and the pin 7 of the moving piece H sent by the cam groove 8 is connected to the hourglass rotator 5, The front path 6F and the rear path 6B of the annular traveling path 6 are entered from an end point F provided at the large diameter portion on the other end side of 5 '. In other words, the moving piece H in the rear path 6B of the annular traveling path 6 is rotated by 180 ° when entering the front path 6F through the turn path 6T. In the state shown in FIG. 9 (e), the pin 7 of the next moving piece H ′ is located at the start point S of the cam groove 8. This is the same as the state of FIG. 9A and is repeated sequentially.

  The moving device of the moving piece for a four-axis loom according to the present invention is for weaving the third yarn (oblique yarn) and the fourth yarn (oblique yarn) at the intersection of the first yarn (warp yarn) and the second yarn (weft yarn). The moving piece can be moved efficiently, and in particular, a woven fabric that can be used as a composite material for industrial use, for example, a woven fabric that is strong in four directions by using a flat carbon fiber such as carbon fiber as an oblique thread. It is effective when weaving and can greatly contribute to the improvement of productivity.

It is a partial enlarged view of a four-axis fabric, (a) is an intersection at the intersection, (b) is an intersection at the intersection. It is a top view which shows the travel path and moving mechanism of a moving piece. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. It is a side view which shows a moving piece and its travel path. It is a top view of a moving piece. It is a perspective view which shows the state which brought the main part of the moving piece into close contact. The left half figure of a drum-shaped rotary body is shown, (a) is a side view, (b) is a figure from the small diameter side. The right half figure of a drum-shaped rotary body is shown, (a) is a side view, (b) is a figure from the small diameter side. (A)-(e) is a figure which shows the cam groove of a drum-shaped rotary body, and the turn state of a moving piece. It is a front view which shows the conventional four-axis loom schematically. It is a top view of the moving piece of the diagonal thread of the conventional four-axis loom.

DESCRIPTION OF SYMBOLS 1 4 axis | shaft fabric 2 Moving piece 2a Main part 2b Upper wing board 2c Lower wing board 2b ', 2c' Saddle-shaped sliding body 3 Threading hole 4, 4 'Rotating shaft 5, 5' 6 annular traveling path 6a upper block 6b lower block 6a ', 6b' recess 6F front path 6B rear path 6T turn path 7 pin 8 cam groove S cam groove start point F cam groove end point 9, 9 'drive source a first Thread (warp)
b Second thread (weft)
c Third thread (left diagonal thread)
d Fourth thread (right diagonal thread)
K intersection (intersection or area)

Claims (4)

  A drum-shaped rotating body with a rotation axis in parallel is placed opposite to each other via an annular travel path of a moving piece, and the circumferential surface of each drum-shaped rotating body starts from the large diameter part on one end side and has a small diameter while drawing a spiral. A single cam groove having an end point is provided symmetrically in the large diameter portion on the other end side through the portion, and the moving piece having a threading hole with the cam groove as a guide from the rear path to the front path, And a moving device for a moving piece for a four-axis loom, characterized in that it can move on a turn road connecting the front road to the rear road.   The moving piece has a main portion having a threading hole on the inner end side and a pin fitted on the cam groove of the hourglass-shaped rotating body on the outer end side, and is inclined upward upward from the upper surface of the main portion. The wing part and the diagonally downward lower wing part extend in a reverse shape, and engage with recesses provided annularly on the upper and lower parts of the annular travel path at the outer ends of these upper wing part and lower wing part, respectively. The moving device for a moving piece for a four-axis loom according to claim 1, further comprising a saddle-shaped sliding body that can be formed.   The moving piece for a four-axis loom according to claim 1 or 2, wherein the moving piece in the annular traveling path is in close contact with the main part in a state where the upper wing part and the lower wing part are laminated. Mobile equipment.   The movement of the moving piece in the front road and the rear road of the annular traveling path is characterized in that the driving force is the moving force of the moving piece that moves on the turn path using the cam groove of the hourglass-shaped rotating body as a guide. The moving device of the moving piece for four-axis looms according to claim 1.

Images