JP2010285716A - Reed for loom - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reed for weaving with an air-jet loom, easily passing air to a back side even when using a high-density reed to ensure stable transfer of a weft, and maintaining conventional warp aligning function and function to insert the weft into a weave structure. <P>SOLUTION: The reed 1 for weaving includes a plurality of tunnel reed dents 3 having a recess 4 in a front edge 31, arranged in a manner to connect the recesses 4 with each other and having a guiding groove 5 for guiding the weft and its transporting air flow in lateral direction. In the reed 1 for weaving, a space dent 8C free from the recess 4 on the front edge 81 and positioned not to protrude the front edge 81 beyond an inner edge 43 of the recess 4 forming the guiding groove 5 is present between the tunnel dents 3. A space dent 8 of a position corresponding to the space between the upper and lower parts to form the recess 4 of the tunnel dent 3 is bent backward at a bent part 84, and the front edge 81 of the bent part 84 is positioned behind a rear edge 32 of the tunnel dent 3. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a kite used in an air jet loom (air jet loom) that performs weft insertion by an air jet, and a lateral guide groove that guides the weft and its conveying air is formed on the front surface of the kite. It is about.

The loom divides a plurality of warp yarns into a plurality of warp yarn groups, moves the warp yarns up and down by an opening device for each warp yarn group, forms an opening in the warp yarn, A woven fabric is produced by repeating the process of hammering the weft with a weaving kite having a plurality of kites.
The air jet loom flies the weft by an air jet ejected from a main nozzle disposed at one end of the warp opening, and conveys the weft into the warp opening. Used for weaving.

As described above, the air jet loom conveys the weft yarn by the air jet jetted from the main nozzle. However, since the jet flow is diffused and attenuated, the warp opening of the warp yarn is formed only on the main nozzle side end. It is not easy to make the wefts fly stably.
Therefore, in order to prevent the air jet from the main nozzle from diffusing as much as possible, a guide groove for guiding the weft and its conveying air is provided on the front surface of the kite, and an auxiliary nozzle is provided in the middle portion of the weaving width to provide an air jet in the guide groove. It is trying to energize.

The guide groove is formed in the lateral direction of the front surface of the kite by arranging the kite wings (also referred to as “tunnel wings”) having recesses formed on the front edge thereof.
In addition, the concave portion of the wing is formed by an upper edge protruding from the front edge, an upper edge at the lower jaw, a lower edge at the lower jaw, and an associated back edge.

On the other hand, the auxiliary nozzle is a thin pipe provided with a nozzle hole on the side of the tip, and is erected on the sley so that it can pass between warps. It is provided so as to eject energizing air.
Then, the weft yarn sent by the main nozzle flies through the guide groove while receiving the compressed fluid relay-injected from the auxiliary nozzle.

JP 08-41755 A JP 2002-115154 A JP 2004-197280 A

By the way, the function of the kite in the air jet loom requires not only aligning the warp yarns but also driving the weft yarns by forming guide grooves in addition to driving the weft yarns into the weave structure.
Air is fed into the flight direction and the back direction into the guide groove for transporting the weft together with the air, thereby assisting stable transport of the weft.

However, when a high-density ridge is manufactured, the gap between adjacent wings becomes very small, so the amount of air sent from the auxiliary nozzle to the back side passes between the wings and escapes to the back side is extremely reduced. However, since the weft conveyed by the bounced air is likely to be ejected from the guide groove to the front surface, stable weft insertion is hindered as a result.
Specifically, this phenomenon appears for cocoons having a cocoon density of 30 wings / cm or more.

  Therefore, the present invention provides an air jet loom that allows air to easily escape to the back surface even in a high-density kite, ensuring stable weft yarn conveyance, and at the same time a function for aligning the warp yarn and a function for driving the weft yarn into the weave structure. We intend to provide the weaving hoe provided as usual.

  In the weaving kite according to claim 1 of the present invention, a plurality of tunnel wings having recesses formed in the front edge are arranged so that the recesses communicate with each other, and wefts and guide grooves for the air flow of the transport are formed in the lateral direction. In the weaving kite, the space wings positioned so that the concave portion is not formed on the front edge and the front edge does not protrude forward from the rear edge of the concave portion forming the guide groove are provided between the tunnel wings. It is characterized by having.

  The invention of claim 2 is characterized in that, in the invention of claim 1, tunnel feathers and space feathers are alternately arranged.

  Further, in the invention of claim 3, in the invention of claim 1 or 2, the front edge of the space wing at a position corresponding to the upper and lower sides where the concave portion of the tunnel wing is formed is retracted from the inner edge of the concave portion of the tunnel wing. A notch is formed.

  The invention of claim 4 is also the invention of claim 1 or 2, wherein space wings at positions corresponding to the upper and lower sides where the concave portions of the tunnel wings are formed are formed in the rear bent portion, and the front edge of the bent portion Is characterized in that the rear edge of the bent portion is located behind the rear edge of the recessed portion of the tunnel wing and the rear edge of the bent portion is located behind the rear edge of the tunnel wing.

  The invention of claim 5 is characterized in that, in the invention of claim 4, the front edge of the bent portion is located behind the rear edge of the tunnel blade.

  Furthermore, the invention of claim 6 is characterized in that, in the invention of claim 1 or 2, the front edge of the space wing is arranged behind the rear edge of the tunnel wing.

  According to a first aspect of the present invention, in the conventional air jet loom kite in which the weft and the conveying air flow guide groove are formed in the lateral direction on the leading edge of the kite, the concave portion is not formed on the leading edge, and the leading edge However, the space wing is positioned between the tunnel wings so as not to protrude forward from the rear edge of the concave portion forming the guide groove, and the space wing protrudes into the guide groove. Therefore, it is not an obstacle for passage of the air jet in the guide groove and conveyance of the weft, and the insertion can be performed without any trouble.

  In addition, since there is no upper jaw or lower jaw protruding from the front edge of the space wing, there is a wider gap space above and below the guide groove between the space wing and the adjacent tunnel wing than between the tunnel wings. As a result, air is also introduced from this gap space and the air that escapes to the back surface of the heel is guided and released, so that the effect of ensuring stable conveyance of the weft is exhibited.

  The space feathers have a conventional warp alignment function, and the beating function has a problem that a sufficient number and interval can be obtained with a large number of tunnel feathers even if the space feathers cannot be involved. Absent.

  According to the invention of claim 2, in addition to the effect of claim 1, the tunnel wings and the space wings are alternately arranged, so that the air can easily escape to the back surface in the entire guide groove on average.

  In addition to the effect of the first or second aspect, the invention of claim 3 retreats to the front edge of the space wing at a position corresponding to the upper and lower positions where the concave portion of the tunnel wing is formed, rather than the inner edge of the concave portion of the tunnel wing. Since a notch is formed, a space is created on the back side (back side) from the guide groove, and this space serves as an introduction port for air to escape to the back between the space feather and the tunnel feather. It has a special effect to lead.

  According to the invention of claim 4, in addition to the effect of claim 1 or 2, space wings at positions corresponding to the upper and lower sides where the recessed portions of the tunnel wings are formed are formed in the rear bent portion, and the front of the bent portion. Since the edge is located behind the rear edge of the recessed portion of the tunnel wing and the rear edge of the bent portion is located behind the rear edge of the tunnel wing, the rear side of the guide groove (back side) as in the third aspect. ) Creates a space for introducing air, and the space between the space blades and the adjacent tunnel blades that are formed side by side is reduced, so that the air is more easily escaped to the back surface. To do.

  According to the invention of claim 5, in addition to the effect of claim 4, since the front edge of the bent portion is located behind the rear edge of the tunnel wing, the space wing and the tunnel wing behind the guide groove Is not formed, and the gap between the tunnel wings adjacent to the space wings is more than twice as wide as the original one, so the air can surely escape to the back. It is something that demonstrates.

  In addition to the effect of the first or second aspect, the invention of claim 6 is such that the front edge of the space feather is arranged behind the rear edge of the tunnel feather. In addition, the gap created by juxtaposing the tunnel wings behind the guide groove is not formed, and the gap is more than twice the original width formed by the tunnel wings adjacent to the space wings. Exhibits exceptional effects that come out on the back.

It is a principal part side view which shows one Embodiment of the space feather used for the collar of this invention. FIG. 2 is a cross-sectional view exaggeratingly illustrating a plane of a guide groove in FIG. 1. It is a principal part side view which shows other embodiment of the space feather | wing used for the collar of this invention. FIG. 4 is a cross-sectional view exaggeratingly illustrating a plane of a guide groove in FIG. 3. It is a principal part side view which shows other embodiment of the space feather | wing used for the collar of this invention. FIG. 6 is a cross-sectional view exaggeratingly illustrating the plane of the guide groove in FIG. 5. It is a principal part side view which shows other embodiment of the space feather | wing used for the collar of this invention. FIG. 8 is a cross-sectional view exaggeratingly showing the plane of the guide groove in FIG. 7. It is the front view which showed typically the basic composition of the bag for air injection looms of this invention.

FIG. 9 is a front view schematically showing a basic configuration of a bag for an air jet loom according to the present invention.
The eaves 1 is in the shape of a strip that is long in the vertical direction and has a substantially constant thickness dimension. It is composed of a large number of wings, among which wings (hereinafter referred to as “tunnel wings”) 3, 3, 3,. Has a recess 4 projecting from the front surface, and the recesses 4, 4, 4,...

Each tunnel feather 3 has a front edge 31 that is the front side of the weave and a rear edge 32 that is the front side (back side) of the anti-weave, and the rear edge 32 is linear (that is, the entire vertical direction of the wings (that is, Flat).
The recessed portion 4 of the tunnel wing 3 is formed by an upper jaw portion 33 and a lower jaw portion 34 protruding forward from the front edge 31, and the shape thereof is a rounded corner portion composed of an upper edge 41, a lower edge 42 and a back edge 43. It is U-shaped.
The rear edge 43 is set at substantially the same position as the extension line of the front edge 31 in the front-rear direction.

  The space formed between the adjacent tunnel feathers 3 and 3 is positioned by a pair of spacers (not shown, for example, coil springs) arranged on the ridge 1 with an interval in the vertical direction so as to organize and pass the warp. Space.

  In the reed 1 assembled as described above, warps are inserted and arranged between the reeds, and the guide groove 5 is located in the region where the warp is opened, and at the lower part so as to face the front of the woven fabric. The base 2 is assembled to a bowl sley (not shown).

  On the other hand, an auxiliary nozzle 7 for injecting urging air obliquely from the lower front side of the guide groove 5 toward the guide groove 5 is provided upright on the cocoon sley so as to pass between the warps.

  The weft is ejected from the main nozzle 6 together with the compressed air, travels along the guide groove 5 with the help of the energizing jet from the auxiliary nozzle 7 and is inserted into the opening of the warp.

FIG. 1 is a side view of an essential part showing an embodiment of a space wing used in the kite 1 of the present invention, FIG. 2 is a cross-sectional view exaggerating the plane of the guide groove, and the space wing 8A is a guide. A trough 1 is formed between the tunnel blades 3 in which the grooves 5 are formed.
In the upper and lower positions where the guide groove 5 is formed by the tunnel wing 3, the front edge 81 of the space wing 8 </ b> A is conversely formed with a notch 83 on the rear edge 82 side.

  Therefore, in the guide groove 5 between the tunnel wings 3 and 3 adjacent to the space wing 8A, a space K is formed in the upper and lower portions, and the front-rear width L where the tunnel wing 3 adjacent to the space wing 8A is overlapped is the conventional width L. It becomes narrower than the overlapping width of the tunnel wings 3, so that air easily escapes to the back surface (rear edge 32, 82) side.

By the way, by arranging the space wings 8A between the tunnel wings 3, it was possible to carry out insertion without difficulty even for cocoons having a cocoon density of 30 wings / cm or more.
An ultra-high density kite can sufficiently guide the weft and the air without forming the guide groove 5 using all the kite wings as tunnel wings 3, and has a recess 4 protruding to the front edge 81. Needless to say, the space wing 8A has an effect of organizing the warp.

FIG. 3 is a side view of an essential part of a space wing showing another embodiment of the bag 1 of the present invention, and FIG. 4 is a cross-sectional view exaggerating the plane of the guide groove.
The space blade 8 </ b> B is formed in a backward bent portion 84 at the upper and lower positions where the guide groove 5 is formed in the tunnel blade 3, and the front edge 81 of the bent portion 84 is the inner edge 43 of the recess 4 of the tunnel blade 3. Further, it is disposed between the tunnel wings 3 in which the guide grooves 5 are formed so that the rear edge 82 of the bent portion 84 is located rearward of the rear edge 32 of the tunnel wing 3, and the ridge 1 is configured. Has been.

  The bent portion 84 of the space blade 8B may be formed in a curved shape or a U-shape. If the front and rear width of the bent portion 84 is the same as other straight portions, there is no problem in strength. Furthermore, since the upper and lower parts are also arranged in parallel with the tunnel wings 3, they can be fixed to the base as usual.

  In this embodiment, similarly to the above, the space K is formed in the upper and lower portions, and in the upper and lower positions where the guide grooves 5 are formed, the front-rear width L where the space blade 8B and the adjacent tunnel blade 3 are overlapped is the conventional width L. It becomes narrower than the overlapping width of the tunnel blades 3 and air easily escapes to the back side (rear edge 32, 82) side.

FIG. 5 is a side view of an essential part of a space wing showing another embodiment of the bag 1 of the present invention, and FIG. 6 is a cross-sectional view exaggerating the plane of the guide groove.
The space wings 8C are arranged between the tunnel wings 3 in which the guide grooves 5 are formed such that the front edge 81 of the bent portion 84 is located behind the rear edge 32 of the tunnel wings 3, It is configured.

  In this embodiment, similarly to the above, the space K is generated in the upper and lower portions, and the space feather 8C and the adjacent tunnel feather 3 are not overlapped at the upper and lower positions where the guide groove 5 is formed. A gap S where 8C does not exist is formed, making it easier for air to escape to the back side (rear edge 32, 82), and confirming the stable insertion even at a high density of 50 / cm or more. It was.

FIG. 7 is a side view of an essential part of a space wing showing another embodiment of the bag 1 of the present invention, and FIG. 8 is a cross-sectional view exaggeratingly showing the plane of the guide groove.
The space wing 8D has a flat plate shape, and a front edge 81 of the space wing 8D is disposed behind the rear edge 32 of the tunnel wing 3 and is disposed between the tunnel wings 3 in which the guide grooves 5 are formed. , 1 is configured.

  In this embodiment, the space wing 8D and the overlapping surface generated by juxtaposition with the tunnel wing 3 on the back side from the guide groove 5 are not formed, but are formed by the tunnel wings 3, 3 adjacent to the space wing 8D. Since the gap S is twice or more as large as the original, air in the back direction can surely escape from the guide groove 5.

The tunnel wings and space wings do not always have to be alternately arranged as shown in FIGS. 1 to 8, and may be arranged for every several tunnel wings. May be arranged continuously.
Moreover, in FIG.7 and FIG.8, since the tunnel wing | blade 3 and the space wing | blade 8D are arrange | positioned forward and backward, it cannot be helped that the front-back width becomes thicker than the conventional cage.
Furthermore, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

  The present invention is an air jet loom, which allows air to easily escape to the back surface even in a high-density kite, ensuring stable weft yarn conveyance, and at the same time, has a function of aligning the warp yarn and a function of driving the weft yarn into the woven fabric. It will be prepared.

DESCRIPTION OF SYMBOLS 1 筬 2 Cap 3 Tunnel wings 31, 81 Front edge 32, 82 Rear edge 33 Upper jaw 34 Lower jaw 4 Recess 41 Upper edge 42 Lower edge 43 Back edge 5 Guide groove 6 Main nozzle 7 Auxiliary nozzles 8A, 8B, 8C, 8D Space wing 83 Notch 84 Bent part K Space L Front and rear width S to be overlapped Clearance

Claims (6)

  A plurality of tunnel wings each having a recess formed on a front edge thereof are arranged so that the recesses communicate with each other, and a weft kite in which a weft and a conveying air flow guide groove are formed in a transverse direction, the recess is formed on the front edge. A weaving kite having space wings between the tunnel wings, which are not formed and are positioned so that the front edge does not protrude forward from the rear edge of the recess forming the guide groove.   2. The weaving hoe according to claim 1, wherein tunnel wings and space wings are alternately arranged.   The weaving according to claim 1 or 2, characterized in that a notch portion that is recessed from the rear edge of the recessed portion of the tunnel wing is formed at the front edge of the space wing at a position corresponding to the upper and lower sides where the recessed portion of the tunnel wing is formed. Jar.   Space wings at positions corresponding to the upper and lower sides where the concave portion of the tunnel wing is formed are formed in the rear bent portion, and the front edge of the bent portion is behind the inner edge of the concave portion of the tunnel wing and behind the bent portion. The weaving kite according to claim 1 or 2, wherein the edge is located behind the rear edge of the tunnel feather.   The weaving kite according to claim 4, wherein the front edge of the bent portion is located behind the rear edge of the tunnel wing.   The weaving kite according to claim 1 or 2, wherein the front edge of the space feather is arranged behind the rear edge of the tunnel feather.

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