JP2011122263A - Tuck-in selvage-forming apparatus in loom for weaving woven fabric for rubber reinforcement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple and inexpensive tuck-in selvage-forming apparatus capable of stably forming tuck-in selvage in which the tuck-in terminal part of a weft yarn draws a large arc so as to coincide with the interval (density) of the weft yarns in a cord fabric part of a woven fabric for rubber reinforcement. <P>SOLUTION: The tuck-in selvage-forming apparatus 30 is equipped with a restriction device 20 for restricting the opening of warp yarns 3 at a part of the warp yarn row including the outmost warp yarn 3a in the weaving width direction at least at the vicinity of the most advanced position 5 of a reed in the warp yarn direction in the loom for weaving the woven fabric for the rubber reinforcement, equipped with the tuck-in selvage-forming apparatus 30 in an air-jetting type, including one or more tuck-in nozzles 32 arranged in the side direction of the warp yarn row and for tucking in the terminal part 2a of the weft-inserted weft yarn, and for weaving the woven fabric 1 for the rubber reinforcement, including the cord fabric part 1a. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a tuck-in ear forming apparatus used for a weaving loom for woven fabric for rubber reinforcement.

  As one of the ear structures of a woven fabric woven by a plain loom, the end of the weft thread inserted is folded back into the warp opening where the subsequent weft thread is inserted, and folded into the woven fabric together with the subsequent weft thread. There is a tuck-in ear. As an apparatus for forming the tack-in ear, an air-jet type tack-in ear forming apparatus as disclosed in Patent Document 1 is known. The operation of turning the end portion of the weft thread inserted into the warp opening into which the subsequent weft thread is inserted is called tack-in. The air-injection type tack-in ear forming device is also called an air tacker.

  The air-injection type tack-in ear forming apparatus mainly includes a tack-in head disposed on both sides of the warp row, and each has a tack-in nozzle for folding back the weft. Then, tuck-in is performed by folding back both ends of the weft thread inserted into the warp opening by the jet air current ejected from the tack-in nozzle.

  By the way, a woven fabric woven by a plain loom has a very coarse weft density, such as a rubber reinforcing fabric (hereinafter referred to as “rubber reinforcing fabric”) used as a core material for reinforcing a rubber material. There is a woven fabric including a portion (hereinafter referred to as “sudare weave portion”). An example of a rubber reinforcing fabric is a tire cord fabric.

  Now, from the viewpoint of the quality of the rubber reinforcing fabric, the end of the tucked-in weft ends in a large arc in accordance with the spacing (density) of the weft yarn, and the struck weave of the rubber reinforcing fabric It is required to be in a state along the weft (see FIG. 1).

  Referring to FIG. 7 in detail, the pre-weaving (restraint point of the weft thread that is inserted most recently) 54 is the amount corresponding to the weft thread density from the hitting point to the hitting point of the next cycle. Move in the warp direction. In the case of a weave weave, the weft density (interval between wefts) is very coarse (for example, 1 / inch), and the warp feed rate is very fast compared to a normal weave with a dense weft density, in other words, Since the amount of movement per cycle is very large, the front of the weaving 54 is positioned at the most advanced position of the beating position 45 (also called the hitting point, the portion where the weft hits the weft in front of the weaving) during one cycle. The same shall apply hereinafter) to move in the warp feed direction. Since the opening of the warp is opened from the front of the weave 54, the position of the start point 43b of the warp opening is also separated from the beating position 45 in the warp feeding direction as the front of the weave 54 moves.

  As described above, in the case of the weave weave, the distance between the weft thread that has been inserted first and the beating position 45 when the next weft thread is beaten is large. In order for the tip portion of the end portion 42c to be in a state along the succeeding weft, it is desirable that the end portion 42 of the weft has a large arcuate shape.

  However, in a loom that forms a tuck-in ear using a conventional air-jet type tuck-in ear forming apparatus, it is difficult to stably and cleanly form a tuck-in ear as shown in FIG. Met. The reason is as follows.

1) As shown in FIG. 7, in the conventional loom, as shown as the end portion 42b of the weft, the end portion of the folded weft does not have a large arcuate state, but from the portion continuous with the woven weft. In many cases, it is immediately bent and turned into an acute angle.

  More specifically, when the weft end portion 42c is folded back into the warp opening by air injection, the weft end portion 4cb tends to bend with its restraint point (the start point 43b of the warp opening) as a fulcrum. Therefore, the weft end 42c is not in a state of drawing a large arc, but is immediately folded back at the starting point 43b of the warp opening (see the weft end 42b shown in the figure), and a tuck-in ear having a desired shape is obtained. I can't.

2) Since the warp feeding speed is high in the case of the weave weaving as described above, the end portion 42c of the weft continuous with the tack-in head 31 is warp in the warp direction in the process of reversing the warp opening after wetting the weft. It is in a state where it intersects with the outermost warp of the warp row at a position separated from the opening start point 43b. In other words, in normal weaving, the amount of movement before weaving per cycle is small, so the end of the weft is located almost in the vicinity of the starting point of the opening. Until the warp opening is reversed to restrain the weft, at the outermost warp position of the warp row, the weft end 42c passes through a position spaced from the opening start point 43b and continues to the tuck-in head. .

  In this case, as shown in FIG. 7, with the opening movement of the warp 43 after reversal, the end portion 42c of the weft continuous with the tack-in head 31 is lifted upward or pushed downward by the outermost warp and pulled. In this state, the tension of the portion increases, and the end portion 42c of the weft thread is pulled out from the tack-in head 31 side. This is a factor that inhibits the formation of a desired tuck-in ear shape.

  In addition, as a loom for weaving a rubber reinforcing fabric including a tack-in ear forming device corresponding to a woven portion of a rubber reinforcing fabric, there is a conventional technique disclosed in Patent Document 2. In the technique of Patent Document 2, a nozzle for injecting air from the fabric side to the heel side is provided, and the end of the weft tucked in by the injection air from the nozzle is pushed back to the heel side, which is required for the weaving portion. We are trying to stabilize the tuck-in ear.

  However, in the case of this prior art, it is necessary to provide a mechanism (fluid supply pipe, electromagnetic on-off valve, etc.) for supplying the nozzle and air as described above, and an apparatus for controlling the injection is also required. This complicates the device configuration for tuck-in ear formation and increases the device cost. In addition, since the displacement of the end portion of the weft by the outermost warp is still occurring, it is impossible to stably form a desired tuck-in ear shape.

JP 2003-166148 A US Patent Publication No. 2009/0025816 A1

  Therefore, in view of the problems of the prior art, an object of the present invention is to provide a tuck-in ear forming device that can stably form a tuck-in ear as described above with a simple and inexpensive configuration with respect to a suede woven portion of a rubber reinforcing fabric. Is to provide.

  In order to solve the above problems, the present invention is configured as follows. That is, the tuck-in ear forming device of the present invention is a loom for weaving a rubber reinforcing fabric (1) including a stale weaving portion (1a), and tacks in an end portion (2a) of a weft thread inserted. Therefore, it is used in a weaving loom for reinforcing rubber with an air-injection type tack-in ear forming device (30) including one or more tack-in nozzles (32) arranged on the side of a warp row. The tuck-in ear forming device (30) is at least in the vicinity of the most advanced position (5) of the heel in the warp direction and in a partial region of the warp row including the outermost warp (3a) in the woven width direction. A regulation device (20) for regulating the opening of the warp (3) is provided.

  As described above, the “most forward position of the kite” generally refers to a position called “beating position (striking point)”, and the kite strikes the weft yarn in contact with the weft yarn before weaving. (Part)) is the most advanced position. Referring to FIG. 2 showing an embodiment of the present invention, the most advanced position 5 of the scissors is the most advanced position of the striking portion 6b of the scissors 4 (the deformed scissors 6), that is, the scissors 4 are broken lines. The position of the hammering part 6b when it advances to a position is said.

  Further, “regulating the opening of the warp” means that the warp row is vertically divided by the opening movement in the partial area, and thereby the position of the starting point (3b) of the warp opening in the area. Is always maintained in the vicinity of the most advanced position (5) of the reed, and the start point (3b) of the warp opening is prevented from moving away from the most advanced position of the reed in the warp feeding direction due to the movement before weaving by warp feeding. To do.

  Furthermore, “near the most forward position (position) of the kite” is a position separated from the most advanced position (5) of the kite to the weaving side so as not to come into contact with the kite. The position between the position of the weft and the most advanced position (5) of the kite. However, a more preferable position is a position as close as possible to the most advanced position of the kite, that is, a position as close as possible to the most advanced position (5) of the kite as long as the regulating device (20) and the kite do not contact each other. It is.

  Further, “at least in the vicinity of the most advanced position of the heel” not only includes the case where the regulating device (20) exists only in the vicinity of the most advanced position (5) of the heel and regulates the opening of the warp (3), It means that the restriction device (20) is present in a specific range in the warp direction including the vicinity of the most advanced position (5) of the reed and the opening of the warp (3) is restricted in such a range. For example, in the embodiment shown in FIGS. 1 and 2, a portion (upper member 21, lower member 22) that restricts the warp opening of the regulating device 20 extends in the warp direction (corresponding to a substantially weft spacing). The opening of the warp 3 is regulated.

  That is, in the present invention, the regulating device (20) is installed between the weft thread (2b) that has been inserted last time at the time of tuck-in and the most advanced position (5) of the reed, and the warp string is used for rubber reinforcement. It is good also as a structure which has the member (21, 22) which opposes on both sides in the thickness direction of a textile fabric (1). As an example in which the regulating device (20) exists only in the vicinity of the most advanced position (5) of the reed, a pair of rod-like members extending in the weaving width direction in the vicinity of the most advanced position (5) of the reed are not shown. To restrict the opening of the warp with the woven fabric interposed therebetween.

  The loom is an air-jet loom having a reed (4) including a modified reed wing (6) having a recess (6a) for forming a weft guide groove (8), wherein the reed (4) May be configured such that the end wings in the woven width direction are formed of flat wings (7).

  Furthermore, the part formed with the flat wings (7) in the ridge (4) may be set to 10 mm or less from the end of the ridge (4) in the woven width direction.

  Since the opening of the warp (3) including the outermost warp (3a) in the weaving width direction is regulated by the regulating device (20), the start point (3b) of the warp opening is positioned in the vicinity of the most advanced position (5) of the heel. Can continue to. If it demonstrates using FIG. 2, even if the cloth front (14) moves to a counter feed side with winding of a woven fabric, in the range which a control apparatus (20) exists, the opening of a warp (3) will be controlled. Therefore, the starting point (3b) of the warp opening can be kept positioned in the vicinity of the most advanced position (5) of the reed. As a result, even if the end portion (2a) of the weft is folded back at the start point (3b) of the warp opening, the weft end portion (2a) is folded at a position separated from the front of the weave (14). It becomes. Thus, the tuck-in ear has a desired shape.

  Further, by regulating the opening of the warp (3), the end (2a) of the weft continuous with the tack-in head (31) is in the process of opening the warp (3) after beating, and the outermost side of the warp row Since it is not lifted (or pushed down) by the warp (3), it can be prevented that the formation of the tuck-in ear is inhibited thereby, and the desired tuck-in ear can be stably formed.

  By setting the wings at the end of the heel (4) including the modified wings to be flat wings (7), the position of the regulating device (20) in the warp direction can be easily set for the following reason.

  Referring to FIG. 2, in order to form a desired tuck-in ear, it is preferable that the starting point (3b) of the warp opening is as close as possible to the most advanced position (5) of the heel. Therefore, it is preferable to provide the regulating device (20) as close as possible to the most advanced position (5) of the kite.

  However, in the case where the cocoon wings are all formed of deformed cocoon wings (6), the warp opening of the regulating device (20) in the state where the heels are located at the most advanced position (the state of the broken line in FIG. 2) Since the portion that regulates (hereinafter also referred to as “regulation portion”) enters the recess (6a) of the heel, the positional relationship between the beating portion (6b) at the bottom of the recess (6a) and the restriction portion Cannot be visually observed. Therefore, it is difficult to grasp the distance between the most advanced position (5) of the kite and the regulating portion of the regulating device (20).

  Therefore, if the wing at the end of the ridge (4) is a flat wing (7) (see FIG. 6), the most advanced position (5) of the heel, The positional relationship with the restricting portion of the restricting device (20) can be visually checked, and it becomes easy to set the restricting portion of the restricting device (20) as close to the strike point as possible. However, since the end of the heel (4) is a flat wing (7), it is only for the purpose of facilitating the position adjustment of the regulating device (20) in the warp direction. Not a configuration. Therefore, all of the wings may be the above-described modified wings (6).

  By setting the portion formed by the flat wings (7) of the heel (4) to be 10 mm or less from the end of the heel (4), the above effect can be obtained without inhibiting the weft flight. Referring to FIG. 6, in the air jet loom, the weft guide groove (8) formed by the recess (6a) of the deformed wing (6) is originally intended to guide the weft flight. If it does not exist, its function is impaired. In other words, if the range in which the flat wings (7) are provided is too large, it becomes a factor that hinders the weft yarn from traveling. Therefore, as a result of intensive studies by the inventors, if the range in which the flat wings (7) are provided is 10 mm or less from the end of the ridge (4), generally good weft insertion is possible in the range of the assumed weaving conditions. It turns out that it can be realized. As described above, by setting the range in which the flat wings (7) are provided to be 10 mm or less from the end of the heel (4), the above-described effects can be obtained without adversely affecting the weft flying.

It is a top view which shows the peripheral part of the control apparatus of the tuck-in ear formation apparatus in one Example of this invention. It is a side view which shows the positional relationship of the control apparatus of a tack-in ear formation apparatus in one Example of this invention, a heel, a tack-in head, a warp, and a textile fabric. It is the (a) top view and (b) side view which show the peripheral part of the control apparatus of this invention, and has shown the state which has a collar in the most advanced position. It is the (a) top view and (b) side view which show the peripheral part of the control apparatus of this invention, and has shown the state which has a heel in the last retracted position. It is the (a) top view and the (b) side view which show the peripheral part of the control device of the present invention, and shows the state where the heel is moving from the most retracted position to the most advanced position. 1 is a perspective view of a bag of a weaving loom for reinforcing a rubber in one embodiment of the present invention. In addition, the control apparatus 20 is abbreviate | omitted. It is a perspective view which shows the peripheral part of the tack-in head in a prior art.

  An embodiment of a tuck-in ear forming device of the present invention will be described with reference to FIGS. The example shown in FIGS. 1-6 is an example which applied this invention to the non-weaving machine for weaving the tire cord fabric which is one of the textiles 1 for rubber reinforcement.

  The tire cord fabric refers to a rubber reinforcing fabric used for manufacturing a carcass layer that is a skeleton of a rubber tire. As shown in FIG. 1, the weave density 1a having a very coarse weft density, and the weft density relative to the weaving area. And a two-part weaving portion having a greatly different weft density. The carcass layer is manufactured by coating a rubber material on the woven portion 1 a of the tire cord fabric 1.

  A tuck-in ear forming device 30 shown in FIGS. 1 to 6 is an air-jet type tuck-in ear forming device, and includes a tuck-in head 31 having a plurality of tack-in nozzles 32, and an upper member 21 and a lower member 22 as a regulating device 20. It is provided on the side of the warp yarn supply side and the side of the counter yarn supply side. The tack-in head 31 and the regulating device 20 installed on the yarn feeding side are symmetrical to the tack-in head and the regulating device installed on the counter yarn feeding side, and the basic structure is the same. In the explanation, the tack-in head 31 and the regulating device 20 on the yarn feeding side will be explained, and the explanation and illustration of the tack-in head on the yarn feeding side and the regulating device will be omitted.

  As shown in FIGS. 1 and 2, the tack-in head 31 is a block-shaped member, and is disposed at a position adjacent to the warp opening of the warp row. The tack-in head 31 is fixed to a temple bracket or the like of a loom (not shown) using an attachment hole 33. A cutter 15 for cutting the weft 2 is provided on the side of the tack-in head 31 opposite to the warp row. FIG. 1 shows a state after the scissors 4 have beaten the weft 2, and the weft 2 that has been beaten is struck to the most advanced position 5 of the reed, and a weft insertion nozzle is provided by the cutter 15. 16 is cut off from the weft in 16.

  The tack-in head 31 is formed with a slit 34 for receiving the end 2a of the beaten weft. The slits 34 are open in three directions: a warp feeding side (hereinafter also simply referred to as “feeding side”), a warp row side, and a cutter 15 side. The tuck-in head 31 is arranged so that the bottom surface 34a of the slit 34 is positioned before the weaving 31 as viewed from the delivery side. A guide surface 34b that expands in the vertical direction is formed in a portion of the tuck-in head 31 that is continuous with the slit 34 on the delivery side with respect to the slit 34, so that the end 2a of the weft yarn can easily enter the slit 34. .

  The tuck-in head 31 also includes a weft end gripping nozzle 35 that temporarily anchors the weft end 2a that has entered the slit 34 into the slit 34, and a weft release nozzle that blows the anchored weft end 2a from within the slit 12. 36 and a tack-in nozzle 32 that blows the end portion 2a of the weft blown out from the inside of the slit 34 into the warp opening 30 and turns it back into a loop shape.

  The tack-in nozzle 32 includes a first tack-in nozzle 32a that performs an injection operation when weaving the suede weave portion 1a and a second tack-in nozzle 32b that performs an injection operation when weaving the tabby weave portion 1b.

  The first tuck-in nozzle 32a that performs the spraying operation when weaving the suede woven portion 1a is arranged on the side of the tuck-in head 31 on the fabric side two above and below the slit 34 (four in total). 32a group is formed. Similarly, the second tuck-in nozzle 32b that performs an injection operation when weaving the tabby weave portion 1b forms a tuck-in nozzle 32b group on the side opposite to the tack-in nozzle 32a. Since the present invention is intended for tack-in during weaving of the weave portion 1a, the following description will be made assuming that the tack-in is performed by the first tack-in nozzle 32a.

  In the illustrated example, the regulating device 20 that is a characteristic part of the present invention is configured such that the upper member 21 and the lower member 22 having an L-shaped cross section face each other symmetrically in the vertical direction across the fabric 1. Hereinafter, the regulating device 20 will be described in detail, but the upper member 21 of the upper and lower symmetrical upper members 21 and 22 will be described, and the description of the lower member 22 will be omitted.

  Of the portion constituting the upper member 21, the portion extending in the warp direction functions as a restricting portion 21a that restricts the opening of the warp 3, and the portion extending in the vertical direction functions as the attachment portion 21b.

  The restricting portion 21a extends in the warp direction between the position where the weft 2b previously inserted at the start of tuck-in exists (the weft 2b in FIG. 1) and the most advanced position (beating point) 5 of the kite. And has the same length in the warp direction as the weft interval. The restricting portion 21a is arranged so that the edge (front edge) on the heel side of the restricting portion 21a is as close as possible to the most advanced position (striking point) 5 so as not to interfere with the heel 4 at the time of the most forward movement. Has been.

  Further, the restricting portion 21a extends toward the inner side of the warp row in a range including the outermost warp 3a of the warp row in the weaving width direction. In the illustrated example, the range in the weaving width direction in which the restricting portion 21a extends is about 10 mm from the weaving end.

  The upper member 21 and the lower member 22 are attached to a fixed portion of the loom, for example, a temple guide of a temple device (not shown) using the attachment portions 21b and 22b.

  Next, with reference to FIGS. 3 to 5, the manner in which the end 2a of the weft is tucked in will be described. For the sake of simplicity, details of the tack-in head 31 are omitted in each figure (b).

  FIG. 3 shows a state in which the weft 2 is beaten to the most advanced position (beating point) 5 by the kite 4 and the end 2 a of the weft yarn is anchored in the slit 34 of the tack-in head 31. In FIG. 3B, the weft end 2a is shown as an imaginary line connecting points A and B. Further, although the warp 3 is shown by a solid line, the actual warp has a certain thickness.

  The weft end 2a is moored in the slit 34 by a weft gripping nozzle 35 and a weft gripping hole 38 formed to face the weft gripping nozzle 35. That is, after the weft thread 2 that has been inserted is beaten and then separated from the weft thread connected to the weft insertion nozzle 16 by the cutter 15, the tip portion of the weft end 2a is gripped by the air injection from the weft grip nozzle 35. It is injected into the hole 38 and is held in the weft gripping hole 38 by the action of the injection air.

  FIG. 4 shows a state in which the reed 4 is retracted to the last retracted position from the state of FIG. 3, the warp 3 is turned upside down, and the fabric 1 is advanced in the feeding direction. After a predetermined period of time has elapsed, the weft end gripping nozzle 35 stops air injection and the weft release nozzle 36 starts air injection, and the weft end 2a is gripped by the weft release nozzle 36 by the jet flow. It is pulled out from the hole 38 (see FIG. 2) and blown out from the slit 34. Thereafter, the first tuck-in nozzle 32a group starts air injection, and the weft end portion 2a is blown into the warp opening by the jet flow of the first tuck-in nozzle 32a group and is folded back in a loop shape.

  FIG. 5 shows a state in which the end 2a of the weft is folded back and the heel 4 is advanced from the last retracted position. In FIG. 5B, the illustration of the end portion 2a of the weft yarn from the point B is omitted. The folded back end 2a of the weft is beaten together with the succeeding weft, folded into the fabric 1 together with the succeeding weft, and the tack-in is completed.

  As shown in FIGS. 3 to 5, with the feeding of the fabric 1, the weft end 2 a is greatly arced. That is, the end portion 2a of the weft is not bent at an acute angle from the portion continuous with the woven weft 2, but gradually begins to bend from the outermost warp to the position of the inner warp (point A) and gently arcs. It is bent while drawing. In this way, the end 2a of the weft 2 is in an arcuate state for the following reason.

  Since the opening of the warp row is regulated by the regulating device 20, the starting point 3 b of the warp opening is always maintained in the vicinity of the most advanced position 5 of the heel even if the front of the weave 14 moves as the fabric 1 is fed. At the timing at which tuck-in is performed, the front edge of the restricting portion 21 in the restricting device 20 is located at a position separated by about half the weft interval from the position of the weft 2 inserted immediately before, and the restricting device 20 exists. In the range, the starting point 3b of the warp opening is restricted to this position. Therefore, even if the end 2a of the weft is folded back at the starting point 3b of the warp opening, the folded position (position where the direction is reversed in the weft insertion direction) is separated from the position of the weft 2 in which weaving is performed. The bent portion of the weft 2 is not bent at an acute angle.

  The weft end 2a is held for a while after the beating (for example, until the reed reaches the last retracted position), and the weft end 2a is held by the weft gripping hole 38 of the tack-in head 31 at the tip. Therefore, the end 2a of the weft yarn is pulled toward the front side of the anti-weaving with the movement before the weaving, and the portion located on the outer side of the warp row is closer to the front side of the anti-weaving than the other portions of the weft 2 It will be in a displaced state. As the air injection by the air injection nozzle 35 is stopped from this state, the holding of the end portion 2a of the weft is released, and then the end portion 2a of the weft is folded back at a position away from the front as described above. It begins to bend from the position (point A) of some inner warps from the outermost side of the warp row, and a large arc is drawn.

  Next, a preferred embodiment of the heel 4 will be described with respect to the weaving loom for reinforcing a rubber, in which the tuck-in ear forming device of the present invention is mounted.

  FIG. 6 shows an example of a preferable ridge 4 of a weaving loom for woven fabric for rubber reinforcement. In addition, illustration of the control apparatus 20 is abbreviate | omitted. The reed 4 is arranged at a plurality of deformed reed wings 6 having recesses 6a for forming the weft guide groove 8, a plurality of flat reed wings 7 arranged at both ends in the weaving width direction, and both ends of the reed 4 Side caps (decorative wings) 11, and an upper cap 9 and a lower cap 10 that hold them up and down. The flange 4 is fixed to the swinging lead holder 13 by a lead gripper 12. In FIG. 6, the yarn feeding side of the reed 4 is shown, and the illustration of the counter yarn feeding side is omitted.

  As shown in FIG. 2, the modified wing 6 has mountain-shaped protrusions above and below the lashing portion 6b that presses the weft 2, and these protrusions form a recess 6a. This concave portion 6a forms the weft guide groove 8 shown in FIG. 6 in a state where a large number of deformed wings 6 are aligned in the weaving width direction, and the weft 2 ejected from the weft insertion nozzle 16 is guided by the weft. Fly in the groove 8.

  Now, in order for the end portion 2a of the weft to stably form an arc, the restriction position of the warp opening by the restriction device 20 is preferably closer to the most advanced position (beating point) 5 of the reed, and therefore the restriction device It is preferable that 20 is provided as close as possible to the most advanced position 5 as long as it does not contact the rod 4. However, if all the wings are composed of the modified wings 6 within the range in which the regulating device 20 exists, the state where the heel 4 is in the most advanced position 5 as shown in FIG. In this state, since the restricting members 21 and 22 of the restricting device 20 enter the recess 6a, the positional relationship between the beating portion 6b of the recess 6a and the saddle-side front edge of the restricting members 21 and 22 is visually observed. Can not do it. Therefore, it is difficult to bring the regulating device 20 as close to the most advanced position 5 as possible.

  Therefore, in the predetermined range in the weaving width direction from the end of the heel 4, the heel feather of the heel 4 is set as a flat wing wing 7 (see FIG. 6), The positional relationship between the hitting point and the regulating members 21 and 22 can be visually checked, and the regulating device 20 can be brought as close to the hitting point as possible.

  In the case of an air jet loom, if the range in which the flat wings 7 are provided is too large, it can be considered that the weft insertion is adversely affected. Various sizes of this range are conceivable depending on the weft insertion conditions, etc., but as a result of intensive studies by the inventors, if the distance from the end of the heel 4 is about 10 mm, the weft 2 flight is affected. It was found that almost good weft insertion can be realized without giving. Therefore, the range in which the flat wings 7 are provided is preferably 10 mm or less from the end of the heel 4.

  In the example shown in FIGS. 1 to 6, the range where the flat wings 7 are provided at both ends of the heel 4 is about 4 mm from the inside of the side base 11 located at both ends of the heel 4. It is smaller than the dimension (10 mm) in the weaving width direction of the regulating members 21 and 22. In other words, the range of the flat wings 7 in the heel 4 does not have to be the same as the range in which the restricting members 21 and 22 are present, and the restricting members 21 and 22 As long as the positional relationship between the heel-side front edge and the heel strike portion 6b can be visually confirmed, it may be different as in this embodiment.

  Note that the portion of the restricting device 20 that restricts the opening on the most heel side, in this embodiment, the heel side front edges of the regulating members 22 and 21 is as close as possible to the most advanced position (striking point) 5 of the heel. As described above, the method of setting the position of the heel-side front edge can be considered as follows.

  That is, the fixing means of the restricting device 20 with respect to the fixing portion of the loom is a bracket or the like that can be adjusted in the warp direction, and the restricting device 20 is moved in the warp direction to set the position of the heel side front edge of the restricting members 22 and 21. Also, a plurality of regulating members 22 and 21 having different lengths in the warp direction are prepared, and the one with the heel-side front edge closest to the heel most advanced position (striking point) 5 is selected in relation to the attachment position. To do. As described above, the present invention is not limited to the case where the regulating device 20 is fixedly attached to the fixing portion of the loom, and includes a device that can adjust the position in the warp direction.

  In the present embodiment, an example in which the present invention is applied to a non-woven loom for weaving rubber reinforcing fabric represented by a tire cord fabric is shown, but the density is not limited to the non-woven loom for weaving rubber reinforcing fabric. The present invention can also be applied to other non-woven looms for weaving a fabric including two different woven portions. Here, “including two woven portions” means not only that the woven fabric is formed only of the two woven portions, but also includes those having other woven portions having different densities. .

DESCRIPTION OF SYMBOLS 1 Rubber reinforcement fabric 1a Sudare woven part 1b Tabby woven part 2 Weft 2a Weft end 2ab Weft 3 previously inserted weft 3a Outermost warp 3b Start point of warp opening 4 筬 5 Most advanced position (beating position) , Strike point)
6 Deformed Wings 6a Recesses 6b Wraps 7 Flat Wings 8 Weft Guide Grooves 9 Upper Base 10 Lower Base 11 Side Port 12 Lead Gripper 13 Lead Holder 14 Before Weaving 15 Cutter 16 Weft Insert Nozzle 20 Regulatory Device 21 Upper Member 21a restricting portion 21b attaching portion 22 lower member 22a restricting portion 22b attaching portion 30 tack-in ear forming device 31 tack-in head 32 tack-in nozzle 32a first tack-in nozzle 32b second tack-in nozzle 33 attaching hole 34 slit 34a slit bottom 34b guide surface 35 Weft end gripping nozzle 36 Weft release nozzle 38 Weft end gripping hole 41 Rubber reinforcing fabric 42 Weft 42a Weft end 42b Weft end 42c Weft end 43 Warp 43b Weft opening start point 45 (Beating position, strike point)
54 Orizen

Claims (4)

A loom for weaving a rubber reinforcing fabric (1) including a suede woven portion (1a), which is arranged on the side of a warp row to tack-in an end (2a) of a weft thread inserted In a loom weaving loom for reinforcing rubber with an air-jet tuck-in ear forming device (30) including one or more tack-in nozzles (32),
A regulating device (20) for regulating the opening of the warp (3) at a part of the warp row which is at least near the most advanced position (5) of the heel in the warp direction and includes the outermost warp (3a) in the weaving width direction. A tuck-in ear forming device (30), comprising: The regulating device (20)
A member (21) which is installed between the weft thread (2b) previously inserted at the time of tuck-in and the most advanced position (5) of the heel and sandwiches the warp string in the thickness direction of the rubber reinforcing fabric (1) (21 , 22). The tuck-in ear forming device (30) according to claim 1, wherein the tuck-in ear forming device (30) is provided. The loom is an air jet loom having a ridge (4) including a modified wing (6) having a recess (6a) for forming a weft guide groove (8),
The tuck-in ear forming device (30) according to claim 2, wherein the wing (4) has a wing at the end in the weaving width direction formed of a flat wing (7). The tuck-in ear formation according to claim 3, wherein a portion formed by the flat wings (7) in the ridge (4) is set to 10 mm or less from an end portion of the ridge (4) in the woven width direction. Device (30).

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