JP2005281874A - Method for producing slub yarn and wool spinning card - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a means with which a necessary amount of slub yarn is produced by readily changing the production of an ordinary yarn to that of slub yarn at the right time by using existing spinning facilities without limitation to new facilities and an ordinary yarn is readily produced after completion of the production. <P>SOLUTION: In a carding process, a basis weight worker part comprises any of workers 2 that are laid at the end to the third from the end on a finisher card 26 and a stripper 3 opposed to the worker, the worker is arranged before the stripper and the worker and the stripper are rotated in the direction opposite to the rotation direction of a cylinder 1 on the basis weight worker part and the stripper is intermittently rotated so that fibers on the worker are intermittently piled on a web on the circumference of the cylinder, increased parts of basis weight are formed at desired intervals on the web, the obtained web is finely spun to produce a yarn comprising the increased parts of basis weight as slubs. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

    The present invention relates to a method for producing a slab yarn. It is suitable for the production of wool-spun slab yarns, especially wool-slab slab yarns.

    Slab yarn of spun yarn with uneven thickness and some thick parts is favorably used as a design yarn for fashionable women's clothing. Conventionally, to manufacture a slab yarn, a spun yarn is alternately arranged with a twisted portion and a strong twisted portion, or a spun yarn is intermittently inserted between two core yarns and twisted. The feed roller of the open-end spinning device is divided into two parts, and the amount of fiber bundle supplied from one of the feed rollers is adjusted as appropriate, or the sliver draft amount is increased by providing a notch in the draft roller of the sliver. A method of manufacturing a slab by forming a slab portion is known. FIG. 4 is an enlarged view of a part of the slab yarn.

JP 05-005229 A JP 11-117131 A

    The slab yarn is a kind of special yarn, and the amount of demand is increasing, but it is less than that of general spun yarn at present, and does not always reach the amount that requires a dedicated line. Therefore, in the past, it was often manufactured by appropriately modifying existing equipment. However, many of the conventional manufacturing means require a considerable cost for remodeling the equipment even if the existing equipment is used, which has caused the cost of the slab yarn to be high. In order to solve the above-mentioned problem, the present invention is not limited to new equipment, and even when existing spinning equipment is used, the necessary amount of slab yarn of the required form can be obtained by switching normal yarn to slab yarn production in a timely manner. As a result of repeated research and trial and error, we were able to complete the production.

    A method for producing a slab yarn of the present invention completed to solve the above-described problems is directed to any one of the last to third walker placed on the finisher card in the carding process in the production of spun yarn. The stripper is a weighted walker part, and in the weighted walker part, the walker is arranged in front of the stripper, and both the walker and the stripper are rotated in the direction opposite to the rotation direction of the cylinder, and the stripper is rotated intermittently. By intermittently laminating the fibers on the walker circumference on the web on the cylinder circumference, the web is formed with an increased portion of the basis weight at a required interval, and the obtained web is finely spun to obtain the increased portion of the basis weight. It is characterized by producing yarns for slabs.

    By using the present invention, not only new equipment but also existing spinning equipment can be used to perform simple equipment rearrangement, etc., and easily switch to slab yarn production, and the required length, thickness, and interval can be set. After the slab yarn is produced, it can be returned to its original state and normal spinning yarn production can be resumed.

    Prior to the description of the present invention, a carding process of spun spinning that can be preferably used for the present invention will be briefly described with reference to the drawings in order to facilitate understanding of the present invention. FIG. 2 is a side view of a card process composed of three piles of woolen spinning. The carding process is usually a woolen card, in which 2 to 4 piles are connected in series to form a uniform thin-film web by unwinding the raw hair 21, defibrillating, dedusting and mixing the raw hair. (Roller card) portion 22 and a capacitor portion 23 for dividing the web into narrow “sino”.

  In general, the connected first card is a breaker card or scripter card 24, the intermediate card is an intermediate card or intercard 25, the final card is a finisher card 26, and the fourth card is the third card. Is called the finisher first card, and the 4th mountain is called the finisher second card. These cards are constituted by a large number of rollers wound with a needle cloth whose needle tip is inclined in either the direction of rotation of the roller or the direction of rotation of the roller, or upright. The needle is bent in the middle part in the shape of "<", or the straight one is used. Further, an intermediate hair supply portion 27 is provided between the cards so as to correct unevenness of the web taken out from the previous mountain and supply hair to the next mountain.

  Normally, the raw hair fed from the automatic raw material feeding device 28 of the hair feeding unit falls on the feed lattice 29 every fixed amount, and further sent to the breast card 31 by the feed roller 30 for preliminary opening. The pre-opened fibers move onto the cylinder 32 of the next breaker card 24, and the fibers are mixed while being opened one by one. Hereinafter, several walker (worker) 33 is arranged on the circumference of each cylinder 32 of each card 24, 25, and 26, and some fibers are combed from the needle tip of each cylinder 32 and transferred to walker 33. And carding action. Further, a stripper 34 having a small diameter is disposed as a roller for taking away the fibers transferred to the walker 33 (stripping action) and returning them to the cylinder 32. The fiber (web) on the circumference of the cylinder 32 is once transferred to the doffer 35 and taken out.

  In order to easily perform the above action, the walker is mounted so that the rotation direction is opposite to the cylinder and the tip of the needle is inclined to the rotation direction, and the surface speed is considerably reduced than the surface speed of the cylinder. And operate. In addition, the stripper is mounted with the rotation direction in the same direction as the walker, that is, in the direction opposite to the rotation direction of the cylinder, with the tip of the needle inclined in the rotation direction, and the surface speed is set higher than the surface speed of the walker. It is in operation.

  The first feature of the present invention is that, in order to impart a slab to a yarn, a unit length that becomes a slab portion on a web without supplying fibers from outside the process in a carding process when producing spun yarn. This is because it is possible to easily form a portion having a large weight per unit area. The second feature is that it is very easy to prepare an apparatus for producing slab yarns, and the cost required for this is small.

  The present invention will be specifically described with reference to FIG. In the present invention, the finisher card (in the present invention, the final pile in the process including the case of one pile is called the finisher card), which is also arranged at the end or end of the cylinder 1 on the second half. Any of the first to third walker parts (combination of the walker and the corresponding stripper) is the weighted walker part 5, and the arrangement order of the walker 2 and the stripper 3 is reversed from the position on the cylinder circumference of the normal card. That is, the walker 2 is arranged in front and the stripper 3 is arranged in the rear to form a portion having a large basis weight on the web. Among these, the second weight from the end is preferable as the weighted walker portion 5. The reason why the walker portion 5 at the above position is selected is that even if a portion having a large basis weight is formed with a card or walker before this, carding with the subsequent walker portion is made uniform. The reason why the order of arrangement of the walker 2 and the stripper 3 is reversed is that the portion with a larger basis weight is scraped off by the original walker, and a portion with a larger basis weight cannot be formed stably. Both the walker 2 and the stripper 3 are attached in a direction opposite to the cylinder 1 so as to rotate and adjust the rotation speed. Reference numeral 6 denotes a needle cloth. Usually, the needle tip of the cylinder 1 is inclined in the rotational direction, the needle tip of the walker 2 is inclined in the direction opposite to the rotational direction, and the needle tip of the stripper is inclined in the rotational direction.

  In the weighted walker portion 5, the rotation speed of the walker 2 is appropriately selected according to the target slab formation conditions. In general, the rotation speed at which the fiber transfer amount from the cylinder 1 to the walker 2 is maximized is preferably selected. . This is because the thickness and length of the slab and the slab interval can be easily adjusted. On the other hand, the stripper 3 is rotated intermittently. Since the walker 2 is rotating while the stripper 3 is stopped, the fibers on the circumference are scraped off by the stripper 3 and stored in the portion 4 surrounded by the surfaces of the walker 2, stripper 3 and cylinder 1. When the stripper is rotated in this state, the stored fibers move on the circumference of the cylinder, merge with the web on the cylinder, and a web portion having a large basis weight is formed in that portion. The web portion 7 is shown in a perspective view in FIG.

  If the rotation speed of the stripper is slow, the slab portion of the slab yarn becomes long, and if it is fast, the slab becomes thick. Further, the interval at which the slab is formed, and the length and thickness of the slab can be adjusted by the intermittent movement / stop interval of the stripper. In general, it is desirable that the stripper be rotated intermittently irregularly rather than substantially periodically, that is, the period is shifted or randomized without making the movement operation stop interval constant. Fabrics that have been spun using the web and then woven and knitted are varied and attractive. However, yarns manufactured with a constant movement / stop interval are regular in slab intervals, and weaved and knitted fabrics tend to be monotonous. Any of the above operational controls can be easily implemented using a limit switch, a microcomputer, or the like.

    The slab yarn production method and wool spinning card according to the present invention can be used to produce wool slab yarns, in particular, wool spun slab yarns, thereby producing bulky and attractive slab yarns. In addition, since a large-scale facility improvement is not required, even a small and medium-sized enterprise can easily adopt this and produce a desired slab yarn.

The side view which shows the principal part of the wool spinning card | curd which concerns on this invention Side view of wool spinning card The perspective view of the web which concerns on this invention Conceptual diagram of slab yarn

Explanation of symbols

1: Cylinder 2: Walker 3: Stripper 4: Position where the fabric weight is stored 5: Weight fabric portion of the fabric 6: Needle cloth 7: Large portion of the fabric weight 21: Feeding portion of the raw hair 22: Spinning card portion 23: Condenser portion 24 : Breaker card 25: Intermediate card 26: Fi Shercard 27: Intermediate hair feeding part 28: Automatic raw material hair feeding device 29: Feed lattice 30: Feed roller 31: Breast card 32: Cylinder 33: Walker 34: Stripper 35 : Doffer

Claims (5)

    In the carding process, any one of the walker from the end to the end of the card placed on the finisher card and the stripper facing the walker are used as the weighted walker portion. In the weighted walker portion, the walker is arranged in front of the stripper. Both the walker and stripper are rotated in the direction opposite to the direction of rotation of the cylinder, and the stripper is rotated intermittently so that fibers on the walker circumference are intermittently overlapped on the web on the cylinder circumference and required for the web. A method for producing a slab yarn, characterized in that a portion having an increased basis weight is formed at intervals, and the obtained web is spun to produce a yarn having a portion having an increased basis weight as a slab.     The method for producing a slab yarn according to claim 1, wherein the weighted walker part is provided in the second walker part from the end of the finisher card in the carding step.     The method for producing a slab yarn according to claim 1 or 2, wherein the carding step is a carding step of wool spinning.     The method for producing a slab yarn according to claim 1, 2 or 3, wherein the stripper is intermittently rotated intermittently. A wool spinning card for intermittently rotating a stripper to superimpose fibers on a walker circumference on a web on a cylinder circumference to form an increased portion of a basis weight on a web at a required interval. Any walker (2) from the end to the third from the end arranged on the circumference of the cylinder (1) of the card is arranged in front of the stripper (3) facing the walker and the stripper. Is a wool spinning card characterized in that each is capable of rotating in the opposite direction to the cylinder, is mounted so as to be capable of adjusting the rotation speed, and the stripper is configured to be capable of intermittent rotation.

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