JPH0782631A - Apparatus for weaving pile fabric - Google Patents

Abstract

PURPOSE:To provide a weaving apparatus for pile fabric capable of forming nearly uniform pile length to improve the productivity even in the case of forming a pattern with pile yarns. CONSTITUTION:A ground texture is woven with ground warps 3,4 and wefts supplied from a warping beam 1 for grounding and pile threads are planted on the ground texture with pile yarns 8 supplied from a warping beam 2 for pile yarn. The pile-weaving apparatus having the above action is provided with a pile yarn supply controlling means 10 between the warping beam for pile yarn and a wire heald 6 and the controlling means is made to be controllable to supply a prescribed amount of the pile yarn during the action of the warping beam for pile yarn.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pile fabric weaving device.

[0002]

2. Description of the Related Art Generally, a pile fabric weaving device divides a ground warp supplied from a warp beam for upright into upper and lower parts, and weaves the ground design into upper and lower parts by the divided ground warp and weft, respectively. , Pile yarn supplied from the warp beam for pile yarn is supplied over the upper and lower ground textures, and the pile yarns are cut at an intermediate position between the upper and lower ground textures to implant pile hairs in the ground texture. It is configured as follows.

[0003]

In the pile weaving device described above, when pile yarns of the same kind are always supplied over the upper and lower ground fabrics, the amount of pile yarns supplied is always constant. Therefore, the tension can be made substantially constant. However, when the pile yarn is supplied and stopped intermittently, as in the case of making a pattern with pile yarn, the warp beam for pile yarn causes the pile yarn warp beam to pull out the pile yarn at the start of supply from the stop. Since the pile yarn is rotated toward the feeding side, excessive tension acts on the pile yarn. As a result, there is a problem in that the distance between the upper and lower ground tissues becomes narrow, and the length of the fluff formed by the pile yarn becomes shorter than the specified length.

When the length of the pile bristles becomes shorter than the specified length in this way, there is a problem that it becomes an extraordinary product and cannot be a product.

Such a problem becomes more remarkable when the warp beam for pile yarn is large, the mass is heavy and the inertia force is large, and the braking force of the brake is large in order to prevent overrun of the warp beam for pile yarn. Appears. By the way, it is the current situation that conventionally, the products which are out of grade and cannot be shipped as products have been produced by about 5 to 7% of the total production amount.

The present invention has been proposed in view of the above problems. Even when a handle is made of pile yarn, the fluff can be made substantially constant,
An object of the present invention is to provide a weaving device for a pile fabric, which can improve productivity.

[0007]

In order to achieve the above object, a pile fabric weaving apparatus according to the present invention weaves a ground weave with a ground warp and a weft supplied from a warp beam for standing up. In a pile fabric weaving device configured to implant pile hair in a ground structure with pile yarn supplied from a warp beam for pile yarn, a pile yarn is provided between the warp beam for pile yarn and the wire heald. A supply amount control means is provided, and the pile yarn supply amount control means is configured to be controllable so that a predetermined amount of the pile yarn can be supplied when the warp beam for pile yarn is operated.

Further, a pile yarn supply amount control means is formed by guide members mounted substantially parallel to each other, and an elevating member for raising and lowering tension between the guide members to apply tension to the pile yarn, and for adjusting pile yarn. A pinching roller for pinching the pile yarn supplied from the warp beam, and a drive mechanism for driving the pinching roller,
It is also characterized in that the pile yarn supply amount control means is formed so as to drive and control the drive mechanism in conjunction with the operation of the wire heald.

[0009]

First, the pile weaving device is operated to weave the ground structure with the warp and warp for the ground supplied from the warp beam for standing, and at the same time, the pile yarn supply amount from the warp beam for pile yarn. Pile bristles are planted in the ground structure with the pile yarn supplied through the control means. Next, when the pile yarn is replaced for forming a pattern on the surface or the like, the pile yarn is supplied from the warp beam for pile yarn in which pile hair has been planted so far by the pile yarn supply amount control means. The pile yarn is quickly stopped by the stop, and a predetermined pile yarn to be exchanged is immediately supplied from the pile warp beam by a predetermined amount by the pile yarn supply amount control means.

As a result, the pile yarn from the warp beam for pile yarn does not loosen so far to form pile hairs, and the pile yarn from the warp beam for pile yarn which starts the supply of the pile yarn. It is possible to maintain the tension at a substantially constant level without causing the tension to be abnormally increased.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. [Embodiment 1] FIG. 1 is a schematic configuration diagram of a warp yarn supplying state in a pile fabric weaving apparatus. In the figure, reference numeral 1 is a warp beam for standing up and down, 2 is a pile yarn supply. Beam.

The warp yarns 3 fed from the upper warp beam 1 for standing up and the warp yarns 4 fed out from the lower warp beam 1 for standing up are fed by a wire-held lifting device 5 such as a dobby device or a jacquard device. The wire heald 6 which is operated up and down controls the opening and closing of the shed ports 7, 7 for weft threading.

The pile yarn 8 (warp yarn) supplied from the warp beam 2 for pile yarn is the same as the warp yarns 3 and 4 fed out from the warp beam 1 for grounding, and is used by a dobby device or a jacquard device. By raising and lowering the wire heald 9 which is vertically operated by the wire heald elevating device 5, the upper and lower fabric weaving warp yarns 3 and 4 are operated to be connected to each other.

Further, between the pile warp beam 2 and the wire heald 6, the supply amount is adjusted so that the tension of the pile yarn 8 supplied from the pile warp beam 2 is kept substantially constant. A pile yarn supply amount control means 10 is provided.

The pile yarn supply amount control means 10 supports two guide rollers (guide members) 11 ・ 11 on a machine base (not shown) so as to be rotatable and parallel to each other. Elevating roller (elevating member) 12 in the middle part
The elevating roller 12 applies tension to the pile yarn 8 by its own weight, and the shaft portions 13 at both ends are guided up and down by the guide rails 14.

Reference numeral 15 in the drawing is a reed, and reference numeral 16
Is a knife for cutting the middle portion of the pile yarn 8 connecting the upper and lower fabric weaving warp yarns 3 and 4.

The operation of the pile weaving device constructed as described above will be described. First of all, the warp threads 3 and 4 fed from the upper and lower warp beams 1 and 1 for open and close are respectively controlled to be opened and closed by a wire heald, and the weft threads are driven into the opened shed openings 7 and 7, which are reeds 15. When they are brought close to each other, the lower fabric 17 and the upper fabric 18 are woven with an interval of slightly more than twice the length of the raised fabric of the cut pile.

At the same time, when the pile hairs 19 are formed by cut piles on the surfaces of the lower fabric 17 and the upper fabric 18, the pile yarns supplied from the warp beam 2 for pile yarns. 8 is sent to the wire heald 9 through the supply amount control means 10 and is supplied in such a state that the lower ground fabric 18 and the upper ground fabric 17 are connected to each other. Woven in a state of being entwined with the weft threads of the fabrics 18 and 17.

After that, when the intermediate portion of the pile yarn 8 connecting the lower fabric 18 and the upper fabric 17 is cut by the knife 16, the lower fabric 18 and the upper fabric 18 are cut. 1
Pile bristles 19 are formed by the pile yarn 8 on the surface portion of 7. Thus, when the pile bristles 19 are formed on the surfaces of the lower side fabric 18 and the upper side fabric 19, a predetermined tension is applied to the pile yarn 8 by the weight of the elevating roller 12 of the supply amount control means 10. ing.

Then, the color of the pile bristles 19 is changed, or the supply of the pile yarn 8 from the warp beam 2 for pile yarns is stopped and restarted in order to form a three-dimensional pattern by the pile bristles 19, or another operation is performed. The case of activating the warp beam 2 for pile yarn will be described below.

For example, when the supply of the pile yarn 8 from the warp beam 2 for pile yarn, which has been supplying the pile yarn 8 so far, is stopped, the warp beam for pile yarn is caused by a large inertial force of the warp beam 2 for pile yarn. 2 relaxes the tension of the pile thread 8 in an attempt to rotate in the supply direction of the pile thread 8, but when the tension of the pile thread 8 is relaxed, the elevating roller 12 descends until the tension equals its own weight, and Since the predetermined tension is applied, the tension of the pile yarn 8 is not loosened.

Next, when the warp beam 2 for pile yarn is restarted or another warp beam 2 for pile yarn is started, if the wire heald 9 is moved up and down to open the shed ports 7, 7, A large static inertial force of the warp beam 2 for pile yarns exerts a large tension on the pile yarns 8. However, when the tension of the pile yarns 8 increases, the elevating roller 12 rises until the tension is balanced with its own weight, Since the tension of the pile yarn 8 is relaxed, the tension of the pile yarn 8 is kept substantially constant. As a result, the distance between the lower fabric 18 and the upper fabric 17 is not shortened, and each fabric 17
The length of pile hair formed on the surface of 18 can be made constant.

In this embodiment, the elevating roller 12 of the supply amount control means 10 is guided up and down by the shaft 13 of the elevating roller 12 and the guide rail 14 to apply tension by its own weight. However, as shown in FIG. One end of the arm 20 is swingably supported by the machine base, the free end of the arm 20 is pivotally supported by the shaft 13 of the elevating roller 12, and a spring 21 for urging the intermediate portion of the arm 20 downward is urged. The supply amount control means 10 may be provided, and although not shown, it is needless to say that the arm 21 can be pressed downward by an air cylinder instead of the spring 21.

[Embodiment 2] The pile weaving apparatus according to this embodiment is different from the above embodiment in that the supply amount control means 10 is configured as shown in FIG. 3, and other configurations and operations are the same as those of the above embodiment. Since it is the same as the example, the different part of the supply amount control means 10 will be described. As shown in FIG. 3, the pile yarn 8
The detection device 22 for detecting the movement of the wire heald 9 for controlling the opening and closing of the pile heald 9, and the pinching roller 24 for forcibly feeding the pile yarn 8 between the pile warp beam 2 and the wire heald 9 by a drive mechanism 23 such as a motor.・ Detection device 2 provided with 24
The supply amount control means 10 is formed by the control device 24 that controls the drive means 23 based on the detection signal from the control unit 2.

In the supply amount control means 10 of the pile fabric weaving apparatus of this embodiment, the tension of the pile yarn 8 is not limited to the constant value, but the driving speed of the pressure rollers 24 for forced feeding is electrically changed. Can be set to any
There is also an advantage that the tension of the pile yarn 8 is gradually changed and the length of the pile hair is gradually changed to form a mountain shape to form a three-dimensional pattern rich in undulations.

[0026]

As described above, the weaving device for pile fabric according to the present invention is a pile yarn in which pile bristles have been planted so far when the pile bristles are replaced to form a surface pattern. The supply of pile yarn from the warp beam for warp is quickly stopped by stopping the pile yarn supply amount control means, and the predetermined pile yarn to be replaced is the pile yarn supply amount control means for the corresponding pile yarn from the warp beam for pile yarn. Since it is possible to supply a fixed amount immediately upon activation, it is possible to keep the length of the pile hair formed by the pile yarn constant.

Therefore, it is possible to significantly improve the productivity by eliminating the occurrence of extraordinary products in which the length of the pile hair of the pile hair becomes shorter than the specified length and which does not become a product. There is.

Further, the pile yarn supply amount control means is formed by a guide member mounted substantially in parallel and an elevating member for raising and lowering between both guide members to apply tension to the pile yarn, with a simple structure. It has an advantage that it can be implemented at low cost and can be easily attached to an existing pile weaving device.

In addition, a pinching roller for pinching the pile yarn supplied from the warp beam for the pile yarn, a drive mechanism for driving the pinching roller, and a drive mechanism for controlling the drive mechanism in conjunction with the operation of the heddle. When the pile yarn supply amount control means is formed in this manner, the pile yarn warping beam is large, the mass is heavy and the inertia force is large, and the brake is applied to prevent overrun of the pile yarn warping beam. There is also an advantage that the tension of the pile yarn from the warp beam for pile yarn can be kept constant even when the braking force is large, and the above-mentioned extraordinary product can be reliably prevented from occurring.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a warp yarn feeding state in a pile fabric weaving apparatus according to a first embodiment.

FIG. 2 is a side view of a main portion showing a modified example of a pile yarn supply amount control means portion.

FIG. 3 is a schematic configuration diagram of a warp yarn feeding state in a pile fabric weaving device according to a second embodiment.

[Explanation of symbols]

 1 ... warping beam for upright 2 ... warping beam for pile yarn 3 ... warp for ground 6 ... wire heald 8 ... pile yarn 10 ... supply amount control means 12 ...・ Elevating member 14 ・ ・ ・ Guide member 19 ・ ・ ・ Pile bristles

Claims (3)

[Claims] 1. A ground weave is woven with a warp for a ground and a weft supplied from a warp beam for upright, and pile hair is planted in the ground structure with a pile yarn supplied from a warp beam for a pile yarn. In the pile fabric weaving device configured as described above, a pile yarn supply amount control means is provided between the pile yarn warp beam and the wire heald, and the pile yarn warp beam has a predetermined amount when the pile warp beam operates. A pile fabric weaving device, characterized in that the pile yarn supply amount control means is configured to be controllable. 2. A pile yarn supply amount control means is formed by a guide member mounted substantially parallel to each other, and an elevating member for raising and lowering to apply tension to the pile yarn between the guide members. Item 2. The pile weaving device according to Item 1. 3. A pinching roller for pinching the pile yarn supplied from the warp beam for pile yarn, a driving mechanism for driving the pinching roller, and drive control of the driving mechanism in conjunction with the operation of the wire heald. The pile fabric weaving device according to claim 1, wherein the pile yarn supply amount control means is formed in this manner.