JP5515823B2 - Yarn splicer - Google Patents

Description

  The present invention relates to a yarn joining device that performs yarn joining by injecting a fluid into a yarn housing space in which a yarn is housed.

  A splicer nozzle (yarn joining device) described in Patent Document 1 is a yarn joining device that performs yarn joining by jetting a fluid into a yarn containing space in which yarns are contained. It is provided in a winding device that sequentially pulls out a yarn from a plurality of packages around which the yarn has been wound according to a preset pattern and winds the yarn around the winding package. Yarn splicing is performed between the thread and the thread after switching.

  The splicer nozzle includes a first nozzle hole extending in a direction orthogonal to the one direction as a nozzle hole for injecting compressed air into a yarn accommodating passage extending in one direction, and a first nozzle inclined with respect to the direction. And two nozzle holes. Then, when air is ejected from the first and second nozzle holes, the mutually cut yarns arranged in the yarn housing passage are parallel to the one direction by the compressed air ejected from the second nozzle holes. While being pulled in the pulling direction, the twisted air is untwisted by the compressed air jetted from the first nozzle hole. Thereby, the untwisted yarn ends of the yarn in the yarn accommodating passage are strongly entangled, and the yarn joining strength of the yarn joined is increased.

JP 2006-52485 A

  Here, in Patent Document 1, the compressed air is jetted from the two nozzle holes into the yarn accommodating passage. As described above, the compressed air ejected from the second nozzle hole is injected into the yarn accommodating passage. This is for pulling the inner yarn and contributes somewhat to the untwisting of the yarn, but the yarn is substantially untwisted only by the compressed air injected from the first nozzle hole. However, depending on the yarn type of the yarn to be spliced, the yarn cannot be sufficiently untwisted with only the compressed air injected from one nozzle hole, and there is a possibility that sufficient yarn splicing strength cannot be obtained.

  Furthermore, in Patent Document 1, only two yarns are spliced, but unlike this, for example, as will be described later, a large number of yarns are arranged in the yarn accommodating space, For example, when yarns are joined together (joint), these compressed yarns cannot be sufficiently entangled with compressed air injected from one nozzle hole, and sufficient yarn joining strength can be obtained. The possibility that it is not possible is even higher.

  An object of the present invention is to provide a yarn joining device capable of reliably performing a yarn joining process on a plurality of yarns in a yarn housing space.

A yarn splicing device according to a first aspect of the present invention includes a yarn storage space in which a plurality of yarns are stored, and a plurality of injection ports that are in communication with the yarn storage space and that inject fluid into the yarn storage space. The yarn accommodating space is surrounded by a plurality of discontinuous wall surfaces, the plurality of injection ports are formed at positions facing each of the plurality of wall surfaces, and the yarn accommodating space has a transverse cross section. The shape is a polygon, and the injection port is formed at a position that becomes each vertex of the polygon in the yarn housing space .

  According to this, each of the fluids continuously ejected from the plurality of ejection ports into the yarn accommodation space flows toward the wall surface of the yarn accommodation space facing the ejection port, and then flows by colliding with each wall surface. Change the direction. Thereby, a turbulent flow is generated in the yarn accommodating space, and the yarn in the yarn accommodating space individually moves one by one by this turbulent flow. As a result, in the yarn in the yarn accommodating space, a spread-like portion is formed at a portion where the ejected fluid hits, and an entangled portion where the yarns are interlaced is formed on both sides of the spread-like portion. . And the yarn in the yarn accommodation space is spliced by this entangled portion.

In addition, according to this, since the yarn storage space has a polygonal cross-sectional shape, the fluid injected into the yarn storage space from the injection port formed at each vertex of the polygon is Each flows toward the wall surface that is the side facing each vertex of the regular polygon and collides with each wall surface. Therefore, turbulent flow is likely to occur when the fluid collides with the yarn accommodating space.

  In addition, in the second invention, “being a polygon” is not limited to being strictly a polygon. For example, a wall surface that becomes a side of the polygon is a curved surface, etc. Also included are those in which part of the polygon is deformed.

A yarn splicing device according to a second aspect of the present invention is the yarn splicing device according to the first aspect of the present invention, characterized in that the polygonal side wall surface of the yarn accommodating space is a flat surface.

  According to this, since the wall surface of the yarn accommodating space where the fluid ejected from each ejection port collides is a flat surface, turbulence is more likely to occur when the ejected fluid collides with each wall surface.

A yarn splicing device according to a third aspect of the present invention is the yarn splicing device according to the first or second aspect of the invention, wherein the yarn accommodating space is open at an end thereof and connected to the yarn accommodating space. And a suction flow path for sucking air in the yarn housing space.

  According to this, by sucking air in the yarn accommodation space from the suction channel, the yarn can be sucked from the opening of the yarn accommodation space and introduced into the yarn accommodation space.

A yarn splicing device according to a fourth invention is the yarn splicing device according to any one of the first to third inventions, wherein the yarn housing space is at least in a state where fluid is ejected from the ejection port. The portion other than the end is completely closed except for the injection port.

According to this, the fluid that has been ejected from the ejection port into the yarn accommodation space is less likely to leak out from the yarn accommodation space, and thus turbulence is more likely to occur in the yarn accommodation space.
A yarn joining device according to a fifth aspect of the present invention is the yarn joining device according to any one of the first to fourth inventions, wherein the polygon is a polygon having an odd number of sides.
A yarn joining device according to a sixth aspect of the present invention is the yarn joining device according to the fifth invention, wherein the polygon is a triangle.

  According to the present invention, the direction of the flow of the fluid continuously ejected from the plurality of ejection ports into the yarn accommodation space is changed by colliding with the wall surface of the yarn accommodation space facing the ejection port. Turbulence is generated in the yarn accommodating space. The turbulent flow causes each of the yarns in the yarn accommodation space to move individually and randomly. As a result, in the yarn in the yarn accommodation space, the portion where the injected fluid hits is opened. A portion is formed, and an entangled portion in which the yarns are interlaced is formed on both side portions. And the yarn in the yarn accommodation space is spliced by this entangled portion.

It is a top view which shows the structure of the warping machine which concerns on 1st Embodiment. It is a side view which shows the structure of the warping machine which concerns on 1st Embodiment. It is a figure which shows the connection yarn currently wound up by the yarn supply package. It is the figure which looked at the slit formation apparatus from the direction of arrow IV of FIG. (A) is a top view of a splicer unit, (b) is the BB sectional drawing of (a). It is a figure which shows the procedure which aligns the knot of a connection thread | yarn before winding up the first band. It is a figure which shows the procedure which aligns the knot of a connection thread | yarn and performs a yarn splicing after winding of a band is completed and before winding up the next band. It is a figure which shows the flow of the air in the thread | yarn accommodation space. It is a figure which shows the connection thread | yarn spliced by the air injected into the thread | yarn accommodation space. It is a figure which shows the procedure which winds the connection thread wound up by the partial warp beam around a weaving beam.

  Hereinafter, preferred embodiments of the present invention will be described.

  FIG. 1 is a plan view showing a configuration of a warping machine according to the present embodiment. FIG. 2 is a side view showing the configuration of the warping machine according to the present embodiment. In FIG. 2, the illustration of a carriage 34 described later is omitted.

  Warping machine 1 according to the present embodiment is a so-called partial warping machine, and a plurality of later-described plural yarn feeding packages P supported by creel 2 arranged at the left end of FIGS. 1 and 2. 1 is drawn out, and a plurality of pulled-out connecting yarns Y are wound around a substantially cylindrical partial warping beam 3 arranged at the right end of FIGS. By repeatedly performing such band B formation, a plurality of bands B are formed so as to be aligned in the axial direction of the partial warping beam 3. When winding the connecting yarn Y, the partial warping beam 3 is rotated by driving a motor (not shown) or the like.

  FIG. 3 is a view showing the connecting yarn Y wound around the yarn supplying package P. As shown in FIG. As shown in FIG. 3, the connecting yarn Y wound around the yarn supply package P is formed by combining a plurality of yarns, and the plurality of winding yarns Y1 and the high-strength yarns are combined. Y2 is included. Further, the knot k of the yarn constituting the connecting yarn Y has a hump a.

  Each of the plurality of winding yarns Y1 is a yarn that is wound around the partial warping beam 3 by one winding, and has a length corresponding to a warp that forms one band B. Here, each winding yarn Y1 is composed of only one yarn having a length corresponding to one band B according to the pattern of the fabric, or a plurality of types of yarns having different colors and yarn types. By being tied and tied together, a single thread having a length corresponding to one band B is formed.

  The high-strength yarn Y2 is a multifilament yarn having a strength higher than that of the winding yarn Y1, and is arranged at the portion between the winding yarns Y1 and the end on the side pulled out from the package P in each connecting yarn Y. Has been. Further, the high-strength yarn Y2 is a combination of two yarns Y21 and Y22, and the colors of the yarn Y21 and the yarn Y22 are different (for example, the yarn Y21 is red). In contrast, the yarn Y22 is blue).

  In the warping machine 1, as shown in FIGS. 1 and 2, in the middle of the yarn path between the creel 2 and the partial warping beam 3, the tentering bar 4, the slit forming device 5, the tentering bar 6, a transport mechanism 7, a cutter 8, a splicer unit 9, a suction nozzle 10, a transport roller 11, and the like are arranged.

  The width barbs 4 are comb-like members, and the connecting yarns Y drawn from the plurality of packages P are arranged at equal intervals.

  The slit forming device 5 is disposed on the right side of the tenter bar 4 in the figure. 4 is a view of the slit forming device 5 as viewed from the direction of the arrow IV in FIG. As shown in FIG. 4, the slit forming device 5 includes a frame 21, a fixed roller 22, a lifting roller 23, a fluid cylinder 24, and the like. The fixed roller 22 is a roller that is fixed to the frame 21 and does not rotate. The elevating roller 23 is a non-rotating roller disposed above the fixed roller 22 so as to face the fixed roller 22. The lifting roller 23 has a diameter 25 larger than that of the lifting roller 23 main body at both ends thereof, so that both ends have a larger diameter than a portion therebetween.

  Further, both ends of the elevating roller 23 are supported by the lower end of the fluid cylinder 24. The fluid cylinder 24 is an air cylinder, a hydraulic cylinder, or the like, and its upper end is fixed to the upper end of the frame 21. And the fluid cylinder 24 raises / lowers the raising / lowering roller 23 supported in the lower end part.

  Thereby, as shown in FIG. 4A, the lifting roller 23 is separated from the fixed roller 22 (separated position), and the collar 25 is in contact with the fixed roller 22 as shown in FIG. 4B. It moves up and down between the positions (slit forming positions).

  As shown in FIG. 4A, in the state where the lifting roller 23 is separated from the fixed roller 22, the gap W1 between the fixed roller 22 and the lifting roller 23 is the knot a of the knot k of the connecting yarn Y. It is wider than the size Wa.

  On the other hand, as shown in FIG. 4B, when the collar 25 is in contact with the fixed roller 22, this corresponds to a difference in diameter between the main body of the lift roller 23 and the collar 25 between the fixed roller 22 and the lift roller 23. A slit 26 having a width W2 is formed. As shown in FIGS. 4B and 4C, the width W2 of the slit is wider than the thickness Wy of the connecting yarn Y and smaller than the size Wa of the knot a of the knot k. FIG. 4C is a partially enlarged view of FIG.

  Moreover, the optical sensors 31 and 32 are arrange | positioned at the left-right both sides in FIG. The optical sensors 31 and 32 are for detecting the yarn Y21 out of the high-strength yarn Y2. More specifically, the optical sensors 31 and 32 have a light emitting element and a light receiving element (not shown), and emit light of substantially the same color (for example, red) as the yarn Y21 from the light emitting element. When the optical sensors 31 and 32 face the yarn Y21 having substantially the same color as the light, the emitted light strikes the yarn Y21 and is reflected, and the light receiving element receives the light. On the other hand, when the optical sensors 31 and 32 are opposed to the yarn Y22 having a different color from the light, the emitted light is not reflected even if it hits the yarn Y22, and the light receiving element does not receive the light. And the optical sensors 31 and 32 detect the thread | yarn Y21 by whether a light receiving element receives light.

  The optical sensors 31 and 32 are movable in the arrangement direction of the connecting yarns Y (up and down direction in FIG. 1) over the entire range where the plurality of connecting yarns Y are arranged, and emit light from the light emitting elements. When the optical sensors 31 and 32 are moved from end to end of the moving range while emitting, the number of times the light receiving element receives light is the number of yarns Y21 facing the optical sensors 31 and 32. .

  The width barb 6 is arranged on the right side of the slit forming device 5 in the figure. The tenter barb 6 is a comb-like member finer than the tenter barb 4, and a plurality of connecting yarns Y are wound around the partial warping beam 3 smaller than the interval arranged by the tenter barb 4. Arrange at the yarn interval.

  As will be described later, the transport mechanism 7 is a mechanism for transporting the connecting yarn Y when aligning the knot k2 between the yarn Y21 and the yarn Y22, and includes two elastic rollers 16a and 16b. .

  The elastic roller 16a is arranged on the right side of the tentering rod 6 in the drawing, that is, on the downstream side of the slit forming device 5 in the yarn path. In addition, the elastic roller 16a is formed of an elastic material such as polyurethane at a portion including the surface. Here, the elastic roller 16a is a driving roller that rotates by driving of a motor (not shown) or the like.

  The elastic roller 16b is a roller having a surface including a surface formed of an elastic material similar to that of the elastic roller 16a, and is disposed above the elastic roller 16a. The elastic roller 16b is in contact with the elastic roller 16a, and is rotated by frictional force with the elastic roller 16a when the elastic roller 16a rotates.

  The cutter 8 is disposed on the right side of the elastic rollers 16a and 16b in the drawing, and cuts the connecting yarn Y as will be described later.

  The splicer unit 9 (yarn splicing device) is arranged on the right side of the cutter 8 in the drawing so as to be below the yarn path of the connecting yarn Y. 5A and 5B are diagrams illustrating the configuration of the splicer unit 9, in which FIG. 5A is a plan view and FIG. 5B is a cross-sectional view taken along line BB in FIG.

  As shown in FIG. 5, the splicer unit 9 is integrated by connecting a splicer 51 and a suction nozzle 52 by a connecting member 53. The splicer 51 is provided with a yarn housing space 61, an air injection channel 62, a connection channel 63, an air supply channel 64, and the like.

  The yarn accommodation space 61 extends in the vertical direction so as to penetrate the splicer 51, and an opening at the upper end thereof serves as a suction port 61a for sucking the connecting yarn Y into the yarn accommodation space 61 as will be described later. . Here, the splicer unit 9 is arranged so that the suction port 61a is almost directly below the yarn path of the connecting yarn Y. Further, the yarn accommodating space 61 has a substantially equilateral triangle in cross-sectional shape (enclosed by a plurality of wall surfaces), and all the wall surfaces 61b that are the sides of the equilateral triangle are flat.

  The air injection flow path 62 is a flow path for injecting air (fluid) into the yarn accommodation space 61, and the injection port 62 a is substantially equilateral in the vertical direction of the yarn accommodation space 61. Are formed at positions corresponding to the three apexes (positions facing each of the wall surfaces 61b serving as the sides of the regular triangle).

  The connection flow path 63 is disposed so as to surround the yarn housing space 61 and the three air injection flow paths 62, and the ends of the three air injection flow paths 62 opposite to the injection ports 62 a communicate with each other. . The air supply flow path 64 is a flow path for supplying air to the air injection flow path 62 and has one end connected to the connection flow path 63 and the other end opened on the side surface of the splicer unit 9. The connection port 64a. The air supply source 42 is connected to the connection port 64a through a valve 41 by a tube 47.

  As a result, when the valve 41 is opened, air is supplied from the air supply source 42 to the air supply flow path 64, and the supplied air is branched by the connection flow path 63 and the injection ports 62 a of the three air injection flow paths 62. Are injected into the yarn accommodating space 61 almost simultaneously.

The suction nozzle 52 is provided with a suction channel 71, an air supply channel 72, a connection channel 73, and the like. The suction channel 71 extends in the vertical direction so as to penetrate the suction nozzle 52. The air supply flow path 72 is a flow path for supplying air to the suction flow path 71, and one end of the air supply flow path 72 is a connection port 72 a that is open on the side surface of the suction nozzle 52. An air supply source 44 is connected to the connection port 72a via a valve 43 by a tube 48. When the valve 43 is opened, air is supplied from the connection port 72a to the air supply channel 72.
Yes.

  The connection flow path 73 is formed so as to surround the suction flow path 71, and an intermediate part thereof is connected to the other end of the air supply flow path 72. The connection flow path 73 extends upward from a connection portion with the air supply flow path 72 and is connected to the upper end portion of the suction flow path 71 after its upper end portion is bent downward.

  As a result, the air supplied to the air supply flow path 72 flows into the upper end portion of the suction flow path 71 via the connection flow path 73 as described above. At this time, the air supplied from the air supply flow path 72 flows upward along the connection flow path 73, and as shown by arrows in FIG. In the vicinity of the connection portion with the suction flow channel 71, the flow direction is changed downward and flows into the suction flow channel 71. As a result, a downward air flow is generated in the suction channel 71.

  The connecting member 53 is disposed between the splicer 51 and the suction nozzle 52. The connecting member 53 is provided with a connecting channel 81 so as to penetrate the connecting member 53, and is connected to the yarn accommodating space 61 and the suction channel 71.

  As a result, when a downward air flow occurs in the suction flow path 71 as described above, a downward air flow also occurs in the yarn housing space 61 and the connection flow path 81 communicating with the suction flow path 71. By the flow, as will be described later, the connecting yarn Y cut by the cutter 8 is sucked into the yarn accommodating space 61 from the suction port 61a.

  The suction nozzle 10 is arranged on the right side of the cutter 8 in the drawing so as to be above the yarn path of the connecting yarn Y. The suction nozzle 10 has a structure similar to that of the suction nozzle 52. The suction nozzle 10a is provided at the lower end of the suction nozzle 10 by being arranged so that the upper and lower sides thereof are opposite to the suction nozzle 52. In addition, a connection port 10b is provided on the side surface.

  An air supply source 46 is connected to the connection port 10b through a valve 45 by a tube 49. When the valve 45 is opened, the yarn end of the connecting yarn Y cut by the cutter 8 is sucked as will be described later. The suction is sucked into the suction nozzle 10 from the mouth 10 a, whereby the yarn end of the connecting yarn Y is captured by the suction nozzle 10.

  The suction nozzle 10 is supported so as to be swingable about a shaft 33a, and is attached to the tip of an arm 33 that is swung by a motor (not shown). As the arm 33 swings, the suction port 10a faces the suction port 61a of the splicer unit 9 as shown by the solid line in FIG. 2, and the suction port as shown by the one-dot chain line in FIG. 10a is movable between the positions immediately to the right of the elastic rollers 16a and 16b. The above-described cutter 8 is movable in the vertical direction in FIG. 1, and can be retracted to a position where it does not contact the suction nozzle 10 when the suction nozzle 10 moves.

  The elastic rollers 16 a and 16 b, the cutter 8, the splicer unit 9, and the suction nozzle 10 are arranged on a carriage 34, and these can move together with the carriage 34. Accordingly, the elastic rollers 16 a and 16 b, the cutter 8, the splicer unit 9, and the suction nozzle 10 can be shared by the plurality of warping machines 1.

  The conveyance roller 11 is disposed on the right side of the splicer unit 9 in the drawing. The conveying roller 11 is a driving roller that is rotated by driving a motor (not shown), and conveys the connecting yarn Y toward the right side in the drawing.

  Next, a procedure for winding the connecting yarn Y around the partial warping beam 3 in the warping machine 1 will be described. FIG. 6 is a process diagram showing a procedure for aligning the knot k2 before forming the first band B in the warping machine 1. FIG.

  In the warping machine 1, in order to wind the connecting yarn Y around the partial warping beam 3 after aligning the knot k 2, first, as shown in FIG. 4 (a), the connecting thread Y pulled out from the plurality of packages P supported by the creel 2 is hung on the tenter bar 4 and fixed roller 22, lifting roller 23, Is inserted between the elastic rollers 16a and 16b.

  Next, as shown in FIG. 6 (b), the connecting roller Y is inserted into the slit 26 by lowering the elevating roller 23 to the slit forming position shown in FIG. 4 (b) by the fluid cylinder 24. The elastic roller 16a is rotated in this state. At this time, since the width W2 of the slit 26 is larger than the thickness Wy of the connecting yarn Y and smaller than the size Wa of the knot a of the knot k of the connecting yarn Y, the plurality of connecting yarns Y are knots of the knot k2. Until a2 reaches the slit 26, it is conveyed rightward in the figure.

  When the knot a2 of the knot k2 comes to the slit, the hump a2 is caught by the slit 26 and no more is conveyed. At this time, as described above, since the portions including the surfaces of the elastic rollers 16a and 16b for conveying the connecting yarn Y are made of an elastic material such as polyurethane, the elastic rollers 16a and 16b sandwiching the connecting yarn Y are connected to the connecting yarn Y. Pushed by Y to elastically deform. For this reason, the nip force of the connecting yarn Y by the elastic rollers 16a and 16b is not as great as when the connecting yarn Y is nipped by a pair of rigid metal rollers. Therefore, even if the elastic rollers 16a and 16b are further rotated after the hump a is caught in the slit 26, the elastic rollers 16a and 16b have a weak force for pulling the connecting yarn Y, and the connecting yarn Y is a surface of the elastic rollers 16a and 16b. The connecting thread Y will not be cut off.

  Further, at this time, the elastic rollers 16a and 16b have a weak force for pulling the connecting yarn Y with the hump a caught on the slit 26, but if the winding yarn Y1 is pulled by the elastic rollers 16a and 16b, the winding yarn Y1 Is a low-strength yarn, the connecting yarn Y may be broken. However, in the present embodiment, a high-strength yarn Y2, which is a filament yarn having high strength, is arranged at the end of the package P on the side from which the connecting yarn Y is drawn, and the high-strength yarn Y2 is placed on the elastic rollers 16a and 16b. Since it is pulled, it is possible to prevent the connecting yarn Y from being cut.

  Further, when the connection yarn Y is continuously conveyed, the number of the bumps a2 caught on the slit 26 gradually increases. However, when the number of the bumps a2 caught on the slit 26 increases, the hump a2 is increased. The magnitude of the force that tries to push up the lifting roller 23 increases. However, in the present embodiment, since the lifting roller 23 is pressed downward by the fluid cylinder 24 that moves the lifting roller 23 up and down, the lifting roller 23 is actually moved upward by the force of the hump a2 trying to push up the lifting roller 23. Never move on. Therefore, the hump a2 caught in the slit 26 is not conveyed to the downstream side through the slit 26 which is widened by being pushed up by the hump a2.

  Then, all the connecting yarns Y are conveyed to a position where the knot k2 of the knot k2 is caught by the slit 26, thereby stopping the rotation of the elastic roller 16a when the alignment of the knot k2 is completed.

  Specifically, since the yarn Y21 of the high-strength yarn Y2 comes on both sides of the slit 26 until the knot a2 of the knot k2 is caught by the slit 26, the yarn Y21 is detected by both the optical sensors 31 and 32. The On the other hand, in the state where the knot a2 of the knot k2 is caught by the slit 26, the yarn Y21 comes to the right side of the slit 26 and the yarn Y22 comes to the left side. The yarn Y21 is not detected by the sensor 32.

  Therefore, when the same number of yarns Y21 as the connected yarns Y pulled out by the optical sensor 31 are detected and no single yarn Y22 is detected by the optical sensor 32, all the connected yarns Y21 are detected. As for knot k2, the rotation of the elastic roller 16a is stopped assuming that the knot a2 of the knot k2 is caught in the slit 26, that is, the alignment of the knot k2 is completed.

  Then, after the knots k2 are aligned as described above, the lifting roller 23 is raised again to the separation position shown in FIG. In this state, the carrier roller 11 and the partial warping beam 3 are rotated to wind a plurality of winding yarns Y1 around the partial warping beam 3 to form a band B. . At this time, since the knot k2 is aligned as described above and the winding yarn Y1 is wound around the partial warping beam 3, the winding yarn Y1 constituting the band B is aligned at the winding start position. In this state, it is wound around the partial warping beam 3.

  In this state, the gap W1 between the fixed roller 22 and the lifting roller 23 is larger than the size Wa of the knot a of the knot k, so that the knot a3 of the knot k3 between the yarn Y21 and the yarn Y22. The knot k1 of the knot k1 between the winding yarn Y1 and the next yarn Y21, and the knot knot (not shown) of the yarn when the winding yarn Y1 is combined with a plurality of yarns without being caught, It passes between the fixed roller 22 and the lifting roller 23.

  At this time, a tapered portion 3 a having a larger diameter at a portion closer to the end of the partial warping beam 3 is provided at one end of the partial warping beam 3. The plurality of connected yarns Y overlap in the direction along the surface of the tapered portion 3a.

  Next, the operation until the next band B is formed after the formation of the band B is completed will be described. FIG. 7 is a process diagram showing this procedure.

  Here, in the state where the formation of the band B is completed, the high-strength yarn Y2 has a knot k1 between the winding yarn Y1 and the yarn Y21 wound around the partial warping beam 3 as compared with the slit forming device 5 as shown in FIG. The knot k2 between the yarn Y21 and the yarn Y22 is on the left side of FIG.

  In the warping machine 1, after the formation of the band B is completed, first, the connecting yarn Y is cut by the cutter 8 as shown in FIG. Subsequently, as shown in FIG. 7B, the cutter 8 is retracted and the arm 33 is swung to move the suction nozzle 10 until the suction port 10a comes to the right of the elastic rollers 16a and 16b. In this state, the valves 43 and 45 are opened. As a result, the yarn end of the upstream connecting yarn Y is sucked from the suction port 10a and captured by the suction nozzle 10, and the yarn end of the downstream connecting yarn Y is sucked from the suction port 61a to be spliced by the splicer unit 9. The downstream connecting yarn Y is disposed in the yarn accommodating space 61. At substantially the same time, the elevating roller 23 is lowered by the fluid cylinder 24 to the slit forming position shown in FIG.

  Next, the elastic roller 16a is rotated. Accordingly, as described above, the plurality of connecting yarns Y are conveyed until the knot a2 of the knot k2 is caught by the slit 26, and the knot k2 is aligned.

  Thereafter, as shown in FIG. 7 (c), the lifting roller 23 is raised to the separation position shown in FIG. 4 (a) by the fluid cylinder 24, and then the arm 33 is swung to connect the upstream connecting yarn Y. The suction nozzle 10 that captures the yarn end is returned to a position where the suction port 10a faces the suction port 61a of the splicer unit 9, the valve 45 is closed, and the yarn end of the connecting yarn Y by the suction nozzle 10 is recovered. Release the capture.

  Then, as shown in FIG. 7 (d), the yarn end of the upstream connecting yarn Y captured by the suction nozzle 10 is captured by the splicer unit 9 by being sucked from the suction port 61a. The upstream and downstream connecting yarns Y are disposed in the yarn accommodating space 61 together.

  Next, when the valve 41 is opened in this state, air is injected from the three injection ports 62a into the yarn accommodating space 61 in which the cut connecting yarn Y is arranged as described above.

  FIG. 8 is a diagram showing the air flow in the yarn accommodating space 61 when air is continuously ejected from the ejection port 62a into the yarn accommodating space 61, and the arrows in the figure indicate the air flow. . FIG. 9 is a view showing the connecting yarn Y spliced by the air jetted from the jet port 62a into the yarn accommodating space 61. As shown in FIG.

  As described above, since the yarn storage space 61 has a substantially equilateral triangular cross section, when air is continuously injected from the three injection ports 62a into the yarn storage space 61, it is shown in FIG. As described above, the air jetted from the jet ports 62a formed at the positions of the vertices of the equilateral triangle is respectively directed toward the wall surface 61b that is the side facing the vertices (opposed to the jet port 62a). It flows in a direction substantially perpendicular to the wall surface 61b, and then collides with the wall surface 61b to change the direction of the flow. Thereby, in the yarn accommodation space 61, turbulent flow due to the air injected from the three injection ports 62a is generated.

  At this time, since the air injected from the injection port 62a flows in a direction substantially orthogonal to the wall surface 61b and collides with the wall surface 61b as described above, turbulence tends to occur when the air collides with the wall surface 61b. .

  At this time, since the wall surface 61b of the yarn accommodating space 61 where the air injected from the injection port 62a collides is a flat surface, turbulence is more likely to occur when the air collides with the wall surface 61b.

  Then, each of the connecting yarns Y in the yarn accommodating space 61 individually moves at random due to the turbulent flow. As a result, as shown in FIG. 9, in the connecting yarn Y, the opened portion b is formed in the portion where the air injected from the injection port 62a hits, and the connecting yarn Y is formed in the upper and lower both sides. Is formed. The entangled portion c joins the upstream and downstream connecting yarns Y together.

  After the yarn ends on the upstream side and the downstream side are spliced, the valve 43 is closed, and when the conveying roller 11 and the partial warp beam 3 shifted in position are rotated, the connecting yarn Y by the splicer unit 9 is connected. Is released, and the interlaced portion b where the spliced yarn Y is spliced out of the splicer unit 9 and a plurality of winding yarns Y1 are positioned adjacent to the previously formed band B of the partial warping beam 3. It is wound up. Thereby, the next band B is formed.

  Thereafter, the same operation is repeated to sequentially form a plurality of bands B in the partial warping beam 3. Here, when the connecting yarn Y is wound around the partial warping beam 3 to form a band, the length of the connecting yarn Y wound around the partial warping beam 3 is considerably long. Therefore, as described above, even if the winding start positions of the plurality of connecting yarns Y are aligned before the first band B is formed, the portion farther from the winding start position is located between the plurality of connecting yarns Y. The amount of positional deviation at becomes large. Therefore, every time the formation of the band B is completed, if the plurality of bands B are formed without performing the alignment of the knots k2 as described above, the band B formed later is more between the plurality of connecting yarns Y. A large misalignment occurs.

  However, in the present embodiment, after the formation of the band B and before the formation of the next band B, the knots k2 are aligned, so that the winding start position is aligned in each band B, and a plurality of connecting yarns Y It is possible to prevent a large positional deviation from occurring between the two.

  FIG. 10 is a diagram showing the partial warping beam 3 in which a plurality of bands B are formed. However, in order to make the drawing easy to understand, in FIG. 10, the number of the connecting yarn Y and the band B is made smaller than the actual number, and the interval between the connecting yarns Y is also widened. Further, as described above, when forming each band B, the connecting yarn Y wound around the partial warping beam 3 overlaps in the direction along the surface of the tapered portion 3a. In the band B, the connecting yarn Y is illustrated as overlapping in the radial direction of the partial warping beam 3.

  In the partial warping beam 3 in which the formation of a plurality of bands B has been completed, as shown in FIG. 10A, the portion of the connecting yarn Y positioned between the bands B (in FIG. 10A) A portion B1) indicated by a bold line is cut, and a plurality of connecting yarns Y constituting each band B are pulled out by pulling out the yarn end of the cut portion as shown in FIG. 10B. Then, as shown in FIG. 10C, the drawn connecting yarn Y is wound around the weaving beam 90. At this time, since the opening portion b and the entangled portion c (see FIG. 9) come to the portion B1 from which the connecting yarn Y is drawn, after the connecting yarn Y is pulled out, The connecting yarn Y is wound around the weaving beam 90 after the opening portion b and the entangled portion c are removed by cutting the tip portion.

  Next, modified examples in which various changes are made to the present embodiment will be described. However, components having the same configuration as in the present embodiment are denoted by the same reference numerals, and description thereof is omitted as appropriate.

  In the present embodiment, the wall surface 61b, which is the side of the regular triangle of the yarn accommodating space 61, is a flat surface. However, the present invention is not limited to this. For example, these wall surfaces are curved surfaces. A part of the shape may be deformed.

  Further, in the present embodiment, the thread accommodating space 61 has a substantially equilateral triangle in the cross-sectional shape, but is not limited thereto, and the thread accommodating space has a transverse cross-sectional shape of, for example, a regular pentagon, etc. The side length may be a regular polygon other than an odd-numbered regular triangle, and the ejection port of the air ejection channel may be formed at a position that is the apex of the regular polygon.

  Furthermore, the yarn accommodating space is not limited to the regular polygon as described above, and the yarn accommodating space has, for example, a transverse sectional shape, a side length and an inner angle different from each other. While being surrounded by a plurality of discontinuous wall surfaces such as a polygon, a plurality of injection ports may be formed at positions facing each of the plurality of wall surfaces.

  In addition, being surrounded by a plurality of discontinuous wall surfaces indicates more specifically that they are connected to each other and surrounded by a plurality of wall surfaces that are bent at the connecting portions. That is, for example, it is indicated that the thread accommodating space is not surrounded by a smoothly connected wall surface, such as a circular or elliptical cross section of the thread accommodating space.

  Even in these cases, a large turbulent flow is generated in the yarn accommodating space when the air injected from the injection port collides with the wall surface of the yarn accommodating space, and the large turbulent flow causes the connection as described above. A spread-like portion b and an entangled portion c are formed on the yarn Y, and yarn joining can be performed.

  Further, in the present embodiment, air is injected into the yarn accommodation space 61, but the present invention is not limited to this, and fluid other than air may be injected into the yarn accommodation space 61.

  Further, in the present embodiment, the elastic rollers 16a and 16b, the cutter 8, the splicer unit 9 and the suction nozzle 10 are arranged on the carriage 34. By moving the carriage 34, these are converted into a plurality of warping machines. 1 can be shared, but these may be fixed to the warping machine 1.

  In the present embodiment, the splicer unit 9 is provided by connecting the splicer 51 and the suction nozzle 52 by the connecting member 53. However, the present invention is not limited to this, and the splicer 51 and the suction unit are not limited thereto. The nozzle 52 may be provided separately. In this case, the splicer 51 corresponds to the yarn joining device according to the present invention. Furthermore, the suction nozzle 52 is not provided, and when performing yarn joining, the operator may manually introduce the connecting yarn Y from the suction port 61a into the yarn accommodating space 61.

  In this case, the introduction of the connecting yarn Y into the yarn accommodating space 61 is not limited to being performed from the suction port 61a. For example, the splicer 51 may be provided with a thread insertion groove opened on the side wall surface of the thread accommodating space 61, and the connecting thread Y may be introduced into the thread accommodating space 61 from the side through the groove.

  However, when a thread insertion groove or the like is opened in the thread accommodation space 61 as described above, a part of the air injected into the thread accommodation space 61 leaks outside from the groove or the like. For this reason, the turbulent flow that occurs is weaker than in the present embodiment.

  Alternatively, the side of the yarn accommodating space 61 may be opened and closed in the splicer 51 so that the connecting yarn Y can be inserted into the yarn accommodating space 61 from the side. In this case, the structure of the splicer 51 is complicated compared to the case of the present embodiment, but after the side of the yarn accommodation space 61 is opened and the connecting yarn Y is inserted, the yarn accommodation space If air is injected into the yarn accommodating space 61 after the side of 61 is closed, there is no leakage of air from the side of the yarn accommodating space 61 as described above, and the turbulent flow in the yarn accommodating space 61 is weakened. There is no end.

  Further, in this embodiment, when the connecting yarn Y knot k2 is aligned, the connecting yarn Y is transported by the transport mechanism 7. However, the present invention is not limited to this. The knots k2 may be aligned by pulling the slits 26 until the knots a2 of the knots k2 are caught. In this case, the optical sensors 31 and 32 may not be provided, and the high-strength yarn Y2 may be formed by only one type of yarn. Further, the high-strength yarn Y2 itself may not be provided, and the connecting yarn Y may be one in which a plurality of winding yarns Y1 are combined with each other.

  In the present embodiment, an example in which the present invention is applied to a partial warping machine that forms a plurality of bands B on the partial warping beam 3 has been described. However, the present invention is not limited to this example. For example, a weaving beam is formed. It is also possible to apply the present invention to a warping machine that performs so-called normal warping, in which the same number of connecting yarns Y are wound around a rough winding beam at once.

9 Splicer unit 61 Yarn accommodation space 61a Suction port 61b Wall surface 62a Ejection port 71 Suction channel

Claims (6)

A thread accommodating space for accommodating a plurality of threads;
A plurality of injection ports for injecting fluid into the yarn accommodation space, which communicates with the yarn accommodation space;
The yarn accommodation space is surrounded by a plurality of discontinuous wall surfaces,
The plurality of injection ports are formed at positions facing each of the plurality of wall surfaces ,
The yarn housing space has a polygonal cross-sectional shape,
The yarn splicing device , wherein the injection port is formed at each vertex of the polygon in the yarn housing space . Yarn splicing device according to claim 1 of the yarn accommodating space, the wall serving as the polygon sides is characterized that it is flat. The yarn housing space has an open end.
The yarn splicing device according to claim 1 or 2 , further comprising a suction channel that is connected to the yarn housing space and sucks air in the yarn housing space. 4. The yarn receiving space according to any one of claims 1 to 3 , wherein at least a portion other than the end of the yarn housing space is completely closed except for the ejection port in a state where fluid is ejected from the ejection port. Yarn splicing device according to the above.   The yarn joining device according to any one of claims 1 to 4, wherein the polygon is a polygon having an odd number of sides. The yarn joining device according to claim 5, wherein the polygon is a triangle.

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