JPH0718775Y2 - Stabilizer for the cloth fell position in a loom - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a cloth fell position stabilizing device in a change weaving loom including a warp satin section and a plain weave section.

[Prior Art] Generally, in forming warp openings, the distance from the warp line to the lower warp is set to be larger than the distance from the warp line to the upper warp from the viewpoints of formation, weft insertion time, and the like. Done. Due to this difference in distance, in the case of the woven fabric having only the plain weave structure, the cloth fell is pulled downward. On the other hand, as shown in FIG. 3, in the woven fabric W composed of the warp satin portion Wa and the plain weave part Wb, for example, in the warp satin portion Wa in which the warp threads T are kept stationary for several picks. Front Wa ₁ is pulled upward. Therefore, liable tissue destroyed by unbalanced cloth fell position variations between the cloth fell Wa ₁ warp satin portions Wa to be pulled toward the cloth fell Wb ₁ and the upper plain weave portion Wb is pulled downward. Further, in a jet loom using the deformed reed 2, the jaw 2a forming the weft insertion passage S of the deformed reed 2 is easily caught by the warp yarn at this boundary due to the tension unbalance at the boundary between the warp sat. Wa and the plain weave Wb. And warp cutting is likely to occur. Further, the weft yarn also moves up and down due to the vertical movement of the cloth fell position, and the weft insertion time is restricted in the jet loom in order to avoid interference between the weft yarn and the warp yarn.

In Japanese Examined Patent Publication No. 54-38672, a temple roller is provided over the entire width of the weave, and the temple roller prevents vertical movement of the cloth fell. However, since the fabric is wound around the temple roller, the movement of the fabric is prevented. Poor performance, adversely affecting fabric quality. Further, the workability of threading the warp through the reed when the warp is cut is extremely poor because the temple roller is an obstacle.

In Japanese Examined Patent Publication No. 50-39179 and Japanese Utility Model Laid-Open No. 50-1655, a pressing bar is provided above the cloth fell over the entire width of the cloth. In this conventional device, there is no problem with respect to the mobility of the woven fabric, but the structure itself in which the pressing bar exists over the entire width of the fabric impairs the workability of passing through.

In Japanese Utility Model Laid-Open No. 54-82160, the presser bar is arranged so as to be switchable between the cloth fell position variation preventing position near the cloth fell and the upper retracted position. The presser bar should be switched to the retracted position. Through this, workability is improved.

[Problems to be solved by the invention] However, since it is necessary to fix and hold the presser bar at the cloth fell position fluctuation preventing position, the fixing state of the presser bar on the cloth fell position fluctuation preventing position is released during the passing operation. Therefore, it is unavoidable that the switch position is changed to the retreat position, and after the threading work is completed, it is fixed and held again at the cloth fell position variation preventing position.

It is an object of the present invention to provide a cloth fell position stabilizing device capable of stabilizing the cloth fell position in a woven fabric and eliminating the complication during a passing operation.

[Means for Solving the Problems] Therefore, according to the present invention, in a loom that weaves a modified woven fabric in which a warp satin portion and a plain weave portion are combined, a support rail is installed above the woven fabric and attached to the support rail. A bracket is attached so as to be adjustable in movement in the weft width direction, and is attached to the attachment bracket at a position near the cloth fell at a position corresponding to the region of the satin portion woven between temple devices provided at both ends of the weave width. The cloth fell position variation prevention member to be installed was attached.

[Operation] By disposing the cloth fell position variation preventing member capable of changing the mounting position in the weaving width direction so as to correspond to the warp satin portion, upward movement of the cloth fell at the warp satin portion is prevented. As a result, the tissue collapse due to the unbalance of the cloth fell positions in the warp satin portion and the plain weave portion is eliminated, the warp cutting in the case of using the deformed reed is eliminated, and the constraint of the weft insertion time in the jet room is also relaxed. . Further, it is possible to easily deal with the change of the position of the warp satin portion due to the change of the weaving width or the pattern, by changing the attachment position of the cloth fell position variation preventing member. This eliminates the need for adjusting the length of the cloth fell position variation preventing member to the entire length of the weaving width, which can reduce a region where the weaving width position varying preventing member has poor threading workability.

[Embodiment] An embodiment in which the present invention is embodied in a jet loom using a modified reed will be described below with reference to the drawings.

A plurality of weft-insertion auxiliary nozzles 4 are arranged at predetermined intervals in a sley 3 that supports a modified reed 2 having a weft-insertion passage S for the weft Y ejected from the weft-insertion main nozzle 1. The air jetted from the weft insertion auxiliary nozzle 4 into the weft insertion passage S assists the flying of the weft Y in the weft insertion passage S. Temple devices 5 and 6 are disposed at both left and right ends of the front cloth Wa ₁ and Wb ₁ of the woven fabric W composed of the warp satin portion Wa and the plain weave portion Wb. Shrinkage is prevented.

The woven fabric W in this embodiment is composed of two warp satin parts Wa corresponding to the temple devices 5 and 6 at both end parts of the weave width and four warp satin parts Wa in the center part, and the center part of the weft width is cut to form a left and right pair. Used as an equivalent substitute fabric for.

It changes on the front side of the temple bar 7 that supports both temple devices 5 and 6 for the attachment position adjustment, and a support rail 8 is erected and supported just above the woven fabric W, and a mounting bracket 9 is attached to the support rail 8 at the cloth fell Wa. _While being supported so as to extend to the ₁ and Wb ₁ side, a cloth fell position variation preventing member 10 is fastened and fixed to the tip of the mounting bracket 9. The mounting bracket 9 is slidably supported by the support rail 8 in the longitudinal direction in a concavo-convex fitting relationship, and the bolt 11 is tightened to fix the mounting bracket 9 to the support rail 8.

The support rail 8 is set parallel to the cloth fell Wa ₁ and Wb ₁ ,
The mounting bracket 9 and the cloth fell position variation preventing member 10 are cloth fell Wa
₁ and Wb ₁ can be translated. The lower end of the cloth fell position variation preventing member 10 is set at a height position near the cloth fell Wa ₁ and Wb ₁ so as to coincide with the warp line, and the length thereof is 4 at the central portion of the cloth width. It is set to such an extent that it can cover the two satin parts Wa. Further, the height of the mounting bracket 9 from the fabric W is set as low as possible, and
The cloth fell position variation preventing member 10 is also kept at a height equal to or lower than the height of the mounting bracket 9 so as not to hinder the passing work as much as possible.

When weaving is performed by disposing the cloth fell position variation preventing member 10 so as to correspond to the cloth satin portion Wa at the central portion of the weaving width, the cloth fell Wa of the warp cloth portion Wa corresponding to both the left and right temple devices 5 and 6 ₁ is prevented from moving upward by the covers 5a and 6a of the temple devices 5 and 6. Further, the cloth fell Wa ₁ of the warp satin Wa at the central portion of the cloth width is prevented from moving upward by the cloth fell position fluctuation preventing member 10. Accordingly, occurrence of vertical difference between the cloth fell Wa ₁ satin portion Wa through the cloth fell Wb ₁ plain weave portion Wb is suppressed, due to the unbalance of the upper and lower positions between the two cloth fell Wa _1, Wb ₁ Tissue collapse is resolved. In addition, the unbalanced jaw 2a of the deformed reed 2 and the warp T between the tissue parts Wa and Wb are not caught,
Warp breakage is also eliminated. Furthermore, the time during which the warp yarn T and the weft yarn Y, which fluctuate as the cloth fell position Wa ₁ fluctuates, also decreases, and the constraint on the weft insertion time is alleviated.

According to the cloth fell position stabilizing device including the support rail 8, the mounting bracket 9 and the cloth fell position variation preventing member 10 for stabilizing the cloth fell position, only the necessary area in the weft width direction of the changed fabric W is obtained. That is, it is arranged only in the region of the four warp satin parts Wa in the central part of the weaving width, and the cloth fell position variation preventing member 10 does not exist in the plain weave part Wb other than this region. Therefore, in this embodiment, the area in which the workability of the threading operation is deteriorated is reduced as compared with the conventional apparatus in which the pressing bar is arranged over the entire width of the cloth.

Further, even when the position of the warp satin portion Wa at the central part of the weave width is changed by changing the weave width, the bolt 11 may be loosened and the mounting bracket 9 may be slid to the changed position of the warp saddle portion Wa.
Furthermore, if various kinds of cloth fell position variation preventing members 10 having different lengths are prepared, the degree of freedom in dealing with the change of the satin portion due to the pattern change is significantly increased.

Of course, the present invention is not limited to the above-mentioned embodiment, and for example, an embodiment in which a plurality of cloth fell position variation preventing members 10 are slidably arranged corresponding to the satin portion is also possible.
The present invention is also applicable to looms other than jet loom.

[Effects of the Invention] As described in detail above, the present invention lays a support rail above a woven fabric, and attaches a mounting bracket to the support rail so as to be movable in the weft width direction. Since the cloth fell position variation preventing member installed at the upper part near the cloth fell at a position corresponding to the area of the warp portion to be woven between the temple devices provided at both ends of It is possible to dispose the cloth fell position variation preventing member only in a portion where it is necessary to suppress the variation of the cloth fell upward while coping with the change of the position of the cloth fell. This has an excellent effect that the workability of the threading operation can be improved while solving the problems such as the tissue collapse and the warp cutting.

[Brief description of drawings]

FIGS. 1 and 2 show an embodiment embodying the present invention. FIG. 1 is a perspective view, FIG. 2 is a side sectional view, and FIG. 3 is a side sectional view showing a conventional device. Temple devices 5 and 6, support rails 8 and mounting brackets 9 that constitute the cloth fell position stabilizing device, cloth fell position variation preventing member 10, warp satin portion Wa, plain weave portion Wb, cloth fell Wa ₁ and Wb ₁ , changeable fabric W.

Claims (1)

[Scope of utility model registration request] 1. A weaving machine for weaving a modified woven fabric in which a warp satin portion and a plain weave portion are combined, a support rail is erected above the woven fabric, and a mounting bracket in the support rail is movable and adjustable in the width direction. Attaching to the mounting bracket, a cloth fell position variation preventing member to be installed near the cloth fell at a position corresponding to the region of the warp satin portion woven between temple devices provided at both ends of the cloth width For stabilizing the cloth fell position in a loom.