JPH0253939A - Tack-in selvaging method - Google Patents

Abstract

PURPOSE:To prevent interval of pile from changing every pile structure part by tacking ends of wefts in while putting together with next weaving cycle of weaving cycle of pile formation and specifying weaving cycle number in the region of non-pile structure. CONSTITUTION:In the weaving of fabric consisting of the mixture of pile structure 30 with non-pile structure 31, plural weft ends 5a1-5a3 are tacked in together in the region of pile structure 30 and weaving cycle number is set to integral multiple from tack-in to tack-in in the region of pile structure 30 by pattern controller. It is not required that moves the position of tack-in selvaging device every tack-in.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a tuck-in selvage method.

In the conventional tuck-in selvage method for pile weaving, the forward position of the reed differs between pile reeding and ground reeding, so if you tuck in every weaving cycle, the tuck-in needle or weft end gripper The position of the weaving machine must be moved for each weaving cycle, which results in a lack of high speed. For this reason, for example, when pile beating is performed every two weaving cycles, two
It is common to tuck in a plurality of weft ends at once for each multiple weaving cycle, such as weaving three weft ends together into the warp opening for each weaving cycle.

Problems to be Solved by the Invention As mentioned above, in a loom that tucks in the ends of a plurality of weft yarns at a time every multiple weaving cycles,
When weaving a fabric with a mixture of pile texture and non-pile texture, the tuck-in position in the pile texture will be different, such as sometimes being the ground beating position and other times being the pile beating position. Therefore, the spacing between the piles differs depending on the pile structure, and the quality of the woven fabric deteriorates.

Means for Solving the Problem In areas with pile structure, tuck-in is performed at the next weaving cycle after the weaving cycle for pile formation, and in areas with non-pile structure, the number of weaving cycles is set as tuck-in in the area with pile structure. Set to an integral multiple of the number of weaving cycles from to tuck-in.

Example Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

Figure 3 shows the shuttleless loom used in this embodiment, where 1 is a reed, 2 is a weft inserting main nozzle that moves back and forth together with the reed, 3 is a warp, 4 is a pile yarn, and 5 is a 6 is a weaving yarn, 7 is a woven fabric, 9 is a catch cord on the side of the main nozzle for inserting the weft, and Il is a tuck-in selvedge device. The tuck-in selvage assembly device 11 is divided into a tuck-in selvage assembly device for the weft insertion side and a tuck-in selvedge assembly device for the non-cotton insertion side, but these tuck-in selvedge assembly devices 11 are symmetrical when viewed in the weft insertion direction. , have substantially the same structure. The tuck-in selvage assembly device 11 roughly includes a tuck-in needle 12, a weft end gripper I3, and a cutter 14, and the cutter 14 cuts the beaten weft 5 into a required weft insertion length in each weaving cycle. At the same time, the cut weft end 5a is held until it is tucked in by the weft end gripper I3, and the weft end gripper 13 and the weaving selvedge I are held at each weft cycle for each plurality of weaving cycles.
The weft end portion 5a stretched between the warp threads 7 and 7 is captured by the tuck-in needle I2 and then tucked into the next warp thread 3 opening.

On the other hand, 20 is a tuck-in operation instruction device, and the tuck-in needle 12 is activated once every multiple weaving cycles.
The structure is such that it operates while maintaining the required timing with the main shaft of the loom. 21 is a pattern controller,
A control command according to a predetermined pattern is output to a fluid movement mechanism and a belt drive mechanism (not shown) to control the beating movement of the reed 1 and the opening movement of the belt (not shown). In other words, the pattern controller 21 sets the number of weaving cycles in the non-pile tissue 31 region to an integral multiple of the number of weaving cycles from tuck-in to tuck-in in the pile tissue 30 region.

The operation of the structure of the above embodiment will be explained separately in (1) the pile structure 30 region and (2) the non-pile structure 31 region with reference to FIG. 1.2.

(1) Part of the pile weave 30 ■First weaving cycle (ground beating) weft 5. When the weft is inserted, the reed 1 is advanced to a position A away from the front 6 as shown by the dashed line in FIG. 2 (ground reed beating). At this time, the tuck-in operation instruction device 20 causes the tuck-in needle 12 to pick up the plurality of weft ends 5 ax, 5 al'+ 5 ax stretched between the weft end gripper 13 and the weaving selvedge 17 by this weaving cycle. Catch it and tuck it into the warp thread 3 opening. and weft 5. is gripped by the catch cord 9 and then cut by the cutter 14, and at the same time, the weft end portion 5a is held by the weft end gripper 13,
Yoko I retreats. At this time, the upper and lower warp threads 3 are crossed, but the pile threads 4 are not crossed.

■Second weaving cycle (ground reed beating) weft 5. However, in this weaving cycle, the upper and lower warp threads 3 are not crossed, and only the pile threads 4 are crossed downward. This weft 5. is also whipped to position A. And weft 5.
is gripped by the catch cord 9 and then cut by the cutter 14, and at the same time, the weft end 5at is gripped by the weft end gripper 13.
The reed 1 is held together with the weft end 5a+, and the reed 1 is moved backward.

(3) Third weaving cycle (pile beating) The weft yarn 53 is inserted, but the upper and lower warp yarns 3 and pile yarns 4 are crossed. Since this weaving cycle is a weaving cycle for pile formation, the reed l is at the front 6 of the weave as shown by the imaginary line in FIG.
(the pile is beaten forward until it reaches position B, which is close to ), and a pile P is formed by the pile yarns 4. Also in this weaving cycle, after the weft 53 is gripped by the catch cord 9, it is cut by the cutter 14, and at the same time, the weft end 5a3
is held together with the two weft ends 5a+ and 5at by the weft end gripper 13.

■Fourth weaving cycle (corresponds to the first weaving cycle in the next non-pile weave area in this example) The weft yarn 54 is inserted, but this weaving cycle is the same as the weaving cycle for pile formation. Since it is the next weaving cycle, while the reed I moves forward to the position A where it approaches the weaver 6, the tuck-in operation instruction device 20 operates the tuck-in needle 12 and the weft end gripper I3. Woven ears 1
The three weft ends 5a+ to 5a3 stretched between the threads 7 and 7 are captured together and tucked into the warp 3 opening.

In other words, in the region of the pile structure 30 where a pile is formed every two weaving cycles, the operations ① to ① described above are repeated. Therefore, the plurality of weft ends 5a+ to 5a3 are tucked in together in the next weaving cycle after the pile forming weaving cycle (the aforementioned weaving cycles 1 and 2).

(2) Non-pile fabric area In this area, the number of weaving cycles is determined by the pattern controller 21 to be an integral multiple of the number of weaving cycles from tuck-in to tuck-in (three times in this example) in the pile fabric 30 area. (6 times as shown in FIG. 1 in this example), and the weft yarn is first set at 54° 55.5° every three weaving cycles. , is inserted into the cotton, and the reed l approaches the weaving front 6 as shown by the imaginary line in Fig. 2 at position B.
After each of the wefts 54 to 58 is held by the catch cord 9, they are cut by the cutter I4, and at the same time, the weft ends 5a4.5as, 5ae are held by the weft end gripper 13, and the reed 1 is moved backward. do. For each of these three weaving cycles,
The upper and lower warp threads 3 and pile threads 4 are crossed. Moreover, weft 5
In the weaving cycle in which reed 4 is beaten, reed 1 is at position B.
The tuck-in needle 12 is activated by the tuck-in operation instruction device 20 until the weft end gripper 1 moves forward.
3 and the weaving selvedge 17.

~5a3 are captured all at once and tucked into the warp 3 opening. .

Weft 57.511°5 for every three subsequent weaving cycles
After the weft threads 57 and 57 are inserted, the reed 1 is advanced to position B, which is close to the front 6, as shown by the imaginary line in FIG.
~5° is gripped by the catch cord 9, then the cutter 14
At the same time, the weft ends 5a7, 5ae, 5a
9 is held by the weft end gripper 13, and the reed 1 is moved backward. For each of these three weaving cycles, the upper and lower warp threads 3 and pile threads 4
are crossed.

In this embodiment, it is assumed that the next weaving cycle moves to the pile weave section, and similarly to the weaving cycle (■) in the pile weave section described above, the weft yarn 5X next to the weft yarn 59 is inserted into the weft. Then, the tuck-in operation instruction device 2 is activated by the time the reed 1 is advanced to position A away from the weaving front 6 (ground reed beating) as shown by the dashed line in FIG.
0, the tuck-in needle 12 catches the plurality of weft ends 5a7, 5aa, 5as stretched between the weft end gripper 13 and the weaving selvedge 17, and tucks them into the warp 3 opening.

In the above embodiment, a swing lead method was illustrated and explained in which the forward position of the reed 1 is changed between pile reed beating and ground reed beating, but in the present invention, weaving can be carried out without changing the forward position of the reed 1. A structure in which the pile P is formed by changing the position of the front 6 back and forth can also be applied.

Effects of the Invention As described above, according to the present invention, there is no need to move the position of the tuck-in selvage device every time a tuck is made, and the tuck-in position in the pile structure is always the next weaving cycle after pile formation. without causing any hindrance to sexuality,
To provide a woven fabric with uniform pile spacing of a woven fabric in which a pile structure and a non-pile structure are mixed, and which has good appearance and selvage tightness and is of good quality.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a woven fabric showing one embodiment of the present invention, Fig. 2 is an explanatory diagram of the operation of the same embodiment, and Fig. 3 shows an embodiment of a shuttleless loom used in the same embodiment. It is a schematic configuration diagram. 1... Woven fabric, 30... Pile texture, 31... Non-pile texture.

Claims (1)

[Claims] (1) In areas with pile fabric, tuck-in is carried out at the next weaving cycle after the weaving cycle for pile formation, and in areas with non-pile fabric, the number of weaving cycles is changed from tuck-in to tuck-in in the area with pile fabric. A tuck-in selvage method characterized in that the number of weaving cycles is set to an integral multiple of the number of weaving cycles.