JPH07118981A - Warping method and warping machine therefor - Google Patents

Abstract

PURPOSE:To improve the compatibility of a warping process to a system for supplying a yarn-feeding member under a few-of-a-kind production condition without complicating the work and the lowering of the total permissible yarn quantity and quality of a weaving beam. CONSTITUTION:Yarns delivered from a yarn-feeding member 2 are partially warped to plural taper beams 4 and a single weaving beam 6 is warped from these plural taper beams 4. The partial warping process and a conventional common warping process can be performed by using a warping machine having variable constitution.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a warping method and a warping machine for carrying out the warping method. It is about improvement.

[0002]

2. Description of the Related Art As a warping method, generally, a normal warping method and a partial warping method have conventionally been appropriately adopted according to process conditions.

In the normal warping method, first, a yarn is pulled out from a plurality of yarn feeders set on a creel and wound into a warping beam, and this operation is repeated to prepare a plurality of warping beams. Then, yarns are simultaneously drawn out from these plural warping beams to warp one weaving beam.

In the partial warping method, first, a yarn is drawn from a plurality of yarn feeders set on a creel to form a band at the taper side end of a partial warping drum having a taper-shaped winding surface. Form. That is, one yarn layer having a width smaller than the width in the axial direction of the drum is wound in a state of obliquely moving with respect to the shaft of the drum.

A second band is similarly formed so as to be adjacent to the first band. This operation is repeated until a required total number of yarns are wound on the warping drum to prepare a partial warping drum having a plurality of bands. Then, a yarn is simultaneously drawn from the partial warping drum to prepare one weaving beam.

[0006]

However, the conventional normal warping method and the partial warping method have the following drawbacks, respectively. That is, in the conventional normal warping method, inconvenience arises when the supply of the yarn feeders from the yarn feeder manufacturer is performed under the conditions of a large variety of small lots. For example, it is necessary to form a weaving beam having a total number of yarns of 9000 and a total yarn amount of 675 Kg as a target of the system, but a supply of 1.5 Kg of a yarn feeder can be expected only 450 per lot. And

In the conventional normal warping system, when the total number of yarns wound on one warping beam becomes smaller than a certain limit, the pitch of the yarns becomes coarse. Unevenness occurs on the yarn surface wound around the warp beam. Then, when the yarn is drawn out from the warping beam and warped into the weaving beam, a difference occurs in the drawing speed between the yarn drawn out from the concave portion and the yarn drawn out from the convex portion, so that there is a difference in tension. As a result, streaks are generated on the yarn surface of the weaving beam, which is not preferable in terms of the quality of the weaving beam.

In order to avoid the generation of streaks in such a weaving beam, the number of yarn feeders supplied from the yarn supplier to secure a total number of yarns exceeding a certain limit for one warp beam. Need to increase. In other words, since it has to be rewound, there is a drawback that the work becomes complicated. For example, 450 yarn feeders are rewound to 900 and the total number of yarns is 900.
A warp beam having a total yarn amount of 67.5 Kg is prepared with a book, and one weaving beam is warped from ten such warp beams.

In the case of the conventional partial warping method, the total number of yarns for one band formed on the partial warping drum, and thus the number of yarn feeders set on the creel is small (for example, 100 to 300). (Even individually) has the advantage that warping of the weaving beam is possible. For example, from the 450 yarn feeders, 20 bands each having a total yarn amount of about 33.25 kg are formed on the partial warping drum, and the total number of yarns is 90.
The total yarn amount is 675 kg with 00 yarns, and this may be rewound to the weaving beam.

However, the partial warping method has a drawback that a weaving beam having a large total yarn amount cannot be warped. That is, since the total number of yarns required for the weaving beam is wound around one partial warp drum, the yarn pitch in each band on the partial warp drum is necessarily reduced. Therefore, when warping a weaving beam having a large total yarn amount, the winding diameter of each band formed on the partial warping drum inevitably becomes large, and the amount of variation in the winding diameter between the bands becomes large accordingly. . As a result, when the yarn is rewound from the partial warping drum to the weaving beam, the withdrawal speed of the yarn withdrawn from each band varies in proportion to the variation in the winding diameter of each band, resulting in a large tension difference between the bands. Comes out. Specifically, the tension of the yarn from the band having a large winding diameter is small, and the tension of the yarn from the band having a small winding diameter is large. As a result, band stripes are generated on the yarn surface of the weaving beam, which is not preferable in terms of quality of the weaving beam. That is, it is not possible to warp a weaving beam having a large total yarn amount.

In view of the above situation, the object of the present invention is to make the warping process adaptable to the yarn supplying system under the condition of a large variety of small lots, to make the operation complicated, tolerable total yarn amount and quality of the weaving beam. And to improve it without incurring a decline.

[0012]

Therefore, in the present invention, the yarn from the yarn feeder is partially warped into a plurality of tapered beams, and one weaving beam is warped from the plurality of tapered beams. It is a summary. Here, the tapered beam has substantially the same shape as the winding surface of the yarn as the partial warping drum used in the above-described conventional partial warping method, but the partial warping drum is fixed to the warping machine. On the other hand, the tapered beam can be removed from the warper.

[0013]

Operation: The supplied yarn feeder is set on a creel, and the yarn feeder is partially warped into a tapered beam. By repeating these operations, a plurality of partially formed tapered beams are created, and the yarn is drawn out from the plurality of tapered beams at once and wound into a weaving beam.

[0014]

[Embodiment] In the above basic structure, "warping one weaving beam from a plurality of tapered beams" can take various modes. In the simplest case, yarns are simultaneously drawn from a plurality of tapered beams to directly warp the weaving beam. This is shown in FIG. 1 and will be described later.

In another embodiment, the yarn wound around the tapered beam is once rewound into a conventionally known warp beam having no tapered winding surface, and the yarn is simultaneously drawn out from a plurality of warp beams to form a weaving beam. This is when warping. This mode is used especially when gluing is performed. This will be described later with reference to FIG.

The warping method according to the present invention has the basic structure as described above, but the warping system for carrying out the method is also applicable to the conventional warping method. That is, a known warping beam having no tapered winding surface is attached to a warper, and yarns from a large number of yarn feeders set on a creel are passed through a zigzag reed and a guide member such as a guide roller. A mechanism for performing partial warping, that is, a width adjusting reed and a guide member such as a guide roller or a feed roller are attached to an ordinary warping machine that winds the warping beam over the entire width. Then, when the supply of the yarn feeder from the yarn feeder manufacturer can be expected in a large lot (for example, 700 to 1600), the warping beam is applied to the warping machine in order to perform the conventional normal warping method. The warp beam is warped by winding the yarn from the yarn feeder over the entire width of the warp beam with the mechanism for mounting and partial warping being inactive, and then pulling out the yarns from the plurality of warp beams at the same time. You may

In order to implement such a mode, the warping machine used in the warping system for carrying out the method of the present invention has a structure capable of mounting both a warping beam and a tapered beam. Has become.

That is, the warping machine is provided with a mechanism for a partial warping system (a tenter reed and a feed roller) and a mechanism for a normal warping system (a full-width zigzag reed and a full-width guide roller). Has been. When carrying out the warping method of the present invention, the tapered beam is set on the warper,
Warping is performed by the partial warping mechanism. When the normal warping method is used, a known warping beam is set on a warping machine and warping is performed by a mechanism for the normal warping method.

FIG. 1 shows a first embodiment of the present invention in which a yarn from a yarn feeder is directly drawn from a plurality of taper beams wound around a plurality of bands to directly weave a beam. To warp. Creel 1
A plurality of yarn feeders 2 are set in this. A tapered beam is a barrel that forms a tapered winding surface having a maximum diameter at one end and reducing in diameter along the axial direction, and a straight winding surface having a minimum diameter of the winding surface continuous in the axial direction, that is, A barrel having a conical shape on one side and flanges attached to both ends of the barrel so as to be movable on the floor surface. If the maximum diameter part of the tapered winding surface has the same function as the flange, the flange need not be provided at both ends of the barrel,
A flange having the same diameter as the maximum diameter may be attached only to the barrel end portion on the side where the tapered winding surface is not formed.

Both the tapered beam and the warping beam can be mounted on the warping machine 3, respectively.
A partial warping mechanism is attached to the front frame of the warper. As shown in FIG. 3, this partial warping mechanism has a feed roller 9 having a length smaller than the width of the tapered beam 4 and capable of changing its position in the width direction of the tapered beam 4.
And a width-adjusting reed 7 having a length substantially similar to that of the feed roller 9 and capable of changing the position in the width direction of the tapered beam 4. Further, a warping mechanism is usually attached between a pair of left and right frames of the warper. As shown in FIG. 4, this normal warping mechanism has a guide roller 13 having a length equal to or larger than the entire width of the warping beam 8 and a zigzag reed 11 having a width equal to or larger than the entire width of the warping beam. The partial warping mechanism and the normal warping mechanism are provided so that their heights are different as shown in FIG.

Partial warping by this warping system is performed as follows. (See FIG. 1) As an example of the target of the system, the total number of yarns is 90 as in the case described above.
A weaving beam having a total yarn amount of 675 Kg is formed with 00 yarns. First, 450 yarn feeders 2, each weighing 1.5 kg, are set on the creel 1, and the taper beam 4 is set on the warper 3. 450 yarns from 450 yarn feeders 2 are tentered and reed 7 and feed roller 9
33.75 Kg on the tapered beam 4 by pulling out through
Form a band. This operation is repeated four times to form the tapered beam 4 having a total number of yarns of 1800 and a total yarn amount of 135 kg. Of course, the width of the band is regulated by widthening so as to be 1/4 of the width of the tapered beam 4, and the position of the partial warping mechanism is changed in the width direction of the tapered beam 4 to sequentially change the band forming position. is doing. During the formation of the band, the partial warping mechanism is moved in the axial direction of the tapered beam 4 as the winding diameter of the band increases, so that the cross section of the band is inclined in the axial direction.

By repeating the above-mentioned operation, five taper beams 4 having the same specifications around which the yarn is wound are formed. Then, yarns are simultaneously drawn out from these tapered beams 4 to form a weaving beam 6 having a total yarn number of 9000 and a total yarn amount of 675 kg.

Normal warping by this warping system is performed as follows. The system goals are the same as above, with a total number of yarns of 9000 and a total yarn amount of 675.
A weaving beam of Kg shall be formed. However, it is assumed that 700 or more of the yarn feeders 2 each weighing 1.5 kg are supplied. First, in order to avoid interference with the yarn, the partial warping mechanism is retracted to the standby position (see FIG. 4).

As described above, since the heights of the partial warping mechanism and the normal warping mechanism are different from each other, such a retracting operation is not always necessary, but it is of course preferable to perform the retracting operation. is there. The 700 or more supplied yarn feeders 2 are set on the creel 1 and the warping beam is set on the warping machine 3, and the warping is performed through a normal warping mechanism (that is, a full width zigzag reed and a full width guide roller). Wind the beam across its width.

By repeating such an operation, a plurality of warp beams around which the yarn is wound with the same specifications are formed. Then, these warp beams are placed on the beam stand, and the yarns are simultaneously pulled out from all the warp beams so that the total number of yarns is 9000.
The weaving beam 6 having a total yarn amount of 675 Kg is formed by the book. Although the partial warping mechanism is composed of the tentered reed and the feed roller in the above-mentioned embodiment, it is not limited to the feed roller as long as it has a function of guiding the yarn, and may be a guide roller or a guide roller. It may be configured with a bar material or the like. Further, the tentered reed may be a reed having the reeds arranged in a straight line or a zigzag reed having the zigzag arranged in parallel.

FIG. 2 shows a second embodiment of the present invention in which a plurality of tapered beams are once rewound into a conventionally known warp beam, and yarns are simultaneously drawn from the plurality of warp beams. The warp beam is warped. Here, a sizing process is incorporated before warping the weaving beam.

That is, the yarn is unwound from one taper beam 4 and sent to the sizing machine 5, and the sizing yarn is wound on one warp beam 8. This operation is repeated for a plurality of tapered beams to prepare a plurality of warped beams 8,
The yarn is simultaneously drawn from the plurality of warp beams 8 to warp the weaving beam 6.

In the second embodiment described above, the yarn wound around one taper beam 4 is rewound into one warp beam. However, the present invention is not limited to this, and one taper beam 4 is used. The yarn wound around may be divided into a plurality of warp beams and rewound. More specifically, for example, when forming a weaving beam having a total number of yarns of 9000 and a total yarn weight of 675 Kg from 450 yarn feeders each having a weight of 1.5 Kg, it is wound around one taper beam 4. Consider the case where the warped yarn is divided into two warping beams and rewound. First, 450 yarns are drawn from 450 yarn feeders to form a 67.5 Kg band on the tapered beam 4. This operation is repeated twice to form the tapered beam 4 having a total number of yarns of 900 and a total yarn amount of 135 kg.
Repeating this operation, the same tapered beam
Form a book. Then, by rewinding the thread of one taper beam 4 into two warp beams through a sizing machine,
Ten warp beams having a total number of yarns of 900 and a total yarn amount of 67.5 Kg are formed. After that, the yarns are drawn at a time from these 10 warp beams to form one weaving beam. According to such an embodiment, compared with the second embodiment, the density of the yarn rewound from the tapered beam 4 to the warp beam can be halved, so that the yarns are less likely to come into contact with each other during sizing and the sizing is only that much. It has the advantage of being easy.

In the embodiment described above, the warping machine can be made to use both the warping method of the present invention and the conventional normal warping method. Alternatively, however, only the partial warping mechanism and the tapered beam may be provided so that only the warping method of the present invention is performed.

[0030]

The weaving beam having a desired total yarn amount can be warped by a simple operation without rewinding even if the number of yarn feeders supplied is small. Further, since it is not necessary to unnecessarily increase the winding diameter of the band, band fringes and the like can be prevented and a high quality weaving beam can be obtained.

[Brief description of drawings]

FIG. 1 is a plan view showing a first embodiment of the present invention.

FIG. 2 is a plan view showing a second embodiment of the present invention.

FIG. 3 is a plan view of a warping machine having a partial warping mechanism used in the first embodiment of the present invention.

FIG. 4 is a plan view of a warping machine having a normal warping mechanism used in a second embodiment of the present invention.

FIG. 5 is a side view showing an arrangement relationship between a partial warping mechanism and a normal warping mechanism on the same warper.

[Explanation of symbols]

 1 creel 2 yarn feeder 3 warper 4 taper beam 5 gluing machine 6 weaving beam 7 weft reed 8 warp beam 9 feed roller 11 zigzag reed 13 guide roller

Claims (4)

[Claims] 1. A warping method comprising partially warping a yarn from a yarn feeder into a plurality of tapered beams, and warping a weaving beam from the plurality of tapered beams. 2. When warping one weaving beam from the plurality of tapered beams, yarns are simultaneously drawn from the plurality of tapered beams to directly warp the weaving beam. Warping method described in item. 3. When warping one weaving beam from the plurality of taper beams, the plurality of taper beams are once rewound into the warp beam and the yarns are simultaneously drawn out from the plurality of warp beams. The warping method according to claim 1, wherein the weaving beam is warped. 4. A warping machine comprising a partial warping mechanism including a tentered reed and a thread guide member, and a normal warping mechanism including a full-width reed and a full-width thread guide member.