JPH04135971U - Blended yarn manufacturing equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To reliably guide the core sliver to the center of the sheath sliver. [Structure] A sheath guide 6 for guiding the sheath sliver Sb is provided on the back roller 2, and a core guide 7 for guiding the core sliver Sa is provided in the center of the sheath sliver Sb from the back roller 2. A feature is that the outlet 7b of the guide 7 is formed into a wedge shape that is convex toward the downstream side in the running direction of the sheath sliver Sb.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention produces a blended yarn with different fiber materials in the center and outer layers. This invention relates to a blend yarn manufacturing device.

0002

[Conventional technology]

In the spinning process, a blended yarn (two yarns) with different fiber materials in the center and outer layer is used. This blended yarn has fabric quality features The purpose is to utilize the significance of each fiber material based on the following. For example, cotton fibers on the outside. Fabrics woven from yarns with polyester fibers inside are one of the advantages of cotton. It has the feel of 100% cotton, which is a natural fiber, and absorbs moisture with less pilling. In addition to having properties such as good elasticity, polyester also has the advantage of shrinkage after washing. It has features such as low fabric strength, high fabric strength, and good wash and wear properties.

0003 The blend yarn manufacturing equipment includes back rollers, aprons, and front rollers. A device mainly composed of rollers is known (Japanese Unexamined Patent Publication No. 63-75124), and this manufacturing equipment The purpose of this process is to arrange the supplied sliver into a fiber bundle of a predetermined thickness.

0004

[Problem that the idea aims to solve]

By the way, the above-mentioned blend yarn manufacturing device has a back roller on the fiber bundle input side. An inverted T-shaped trumpet guide is installed to separate different types of slivers into upper and lower parts. The slivers were guided individually depending on the thickness of the yarn to be spun. Since the thickness of the sheath is different, the width of the sliver of the outer layer material (sliver for the sheath) will change. Sometimes, the core material sliver (core sliver) is placed in the center of the sheath sliver. It is difficult to lead them to the club. As a result, the core sliver is completely replaced by the sheath sliver. The core sliver may come out outside the fiber bundle because it cannot be wrapped. This results in the production of yarn whose quality is extremely unstable.

[0005] For this purpose, the sheath sliver is guided to the back roller, and from this back roller A cylindrical core guide connects the core sliver to the center of the expanded sheath sliver. However, the thickness of the core sliver is thin. If this happens, the sliver may become biased at the exit position of the core guide, and It may not be possible to guide the sliver to the center of the sliver.

[0006] Therefore, this invention was made taking these circumstances into consideration, and its purpose makes it possible to reliably guide the core sliver to the center of the sheath sliver. The purpose of the present invention is to provide an apparatus for manufacturing a blended yarn.

[0007]

[Means to solve the problem]

In order to achieve the above objective, the blend yarn manufacturing device of the present invention is In addition to providing a sheath guide for guiding the sheath sliver on the roller, A core guide is placed in the center of the sheath sliver from the roller to guide the core sliver. The outlet of this core guide is convex toward the downstream side in the running direction of the sheath sliver. It is formed into a wedge shape.

[0008]

[Effect]

The exit of the core guide is a wedge that is convex toward the downstream side in the running direction of the sheath sliver. By forming the sheath into a shape, when the sheath sliver is pulled in the running direction, the sliver is squeezed into the wedge-shaped valley at the exit of the core guide, so it is related to the thickness of the sliver. The sliver from the core guide is guided from the same position in the minimum state. Therefore, it is necessary to reliably guide the core sliver to the center of the sheath sliver. becomes possible.

[0009]

【Example】

Embodiments of the present invention will be described below with reference to the accompanying drawings.

0010 In FIG. 1, 1 indicates a draft device of a spinning machine, and this draft device 1 is a 4 consisting of a rear roller 2, a third roller 3, an apron 4 and a front roller 5. Although it is a wire type, it may be a three-wire type or other type, and a predetermined ratio derived from this, for example, 70% of the sliver for the outer layer material (sliver for sheath) Sb and 30% of the sliver for the core material The rotational speed of the sliver consisting of bar (sliver for core) Sa is set to increase in stages. Remove the back roller 2, third roller 3, apron 4 and front roller 5 in this order. During the next pass, it is arranged into a fiber bundle of a predetermined thickness.

[0011] Behind (upstream) of the back roller 2 is a roller for guiding the sheath sliver Sb. A cylindrical trumpet guide 6 is provided as a sheath guide. The guide 6 moves even if the position of the sliver Sb coming out from it is thin. The diameter of the outlet is reduced to prevent

0012 Moreover, as shown in FIGS. 1 to 3, there is a gap between the back roller 2 and the third roller 3. , a core guide 7 for guiding the core sliver Sa is provided, and this core guide The door 7 is formed in the shape of a gutter with an open upper part 7a. The exit of this core guide 7 7b is the central part of the sheath sliver Sb spread from the back roller 2, that is, On a line extending from the center of the exit of the trumpet guide 6 in the running direction of the sliver Sb and is provided almost perpendicularly to the running direction of the sliver Sb and close to the third roller 3. a wedge shape that is convex toward the downstream side in the running direction of the sliver Sb; In the illustrated example, it is formed into a triangular cylindrical shape. The cylindrical portion near the outlet 7b is the outlet The shape is reduced so that it narrows as it goes towards 7b, and the sliver for the core Sa is the valley on the downstream side in the running direction of the triangular sliver Sb at the outlet 7b of the core guide 7 7c and guided to the center of the sheath sliver Sb. Ru. Note that the outlet of the core guide is convex toward the downstream side in the running direction of the sliver Sb. For example, a wedge-shaped opening (slug) may be formed. The upstream side of the fiber Sb in the running direction) may be covered with a lid.

[0013] Now, the sheath sliver Sb is moved from the trumpet guide 6 at a predetermined rotational speed. The sliver Sb is guided by the rotating back roller 2 and is sandwiched between the back rollers 2. It extends approximately the same width on both sides of a line extending in the direction of travel.

[0014] A core sliver is inserted from the core guide 7 into the center of this expanded sheath sliver Sb. Bus Sa will be guided. At this time, the outlet 7b of the core guide 7 is connected to the sheath sliver Sa. It is formed in a triangular shape that is convex toward the downstream side in the running direction, so it is suitable for sheaths. When the sliver Sa is pulled in the running direction, the sliver Sa is pulled at the exit 7 of the core guide 7. b is narrowed down to the valley 7a on the downstream side in the running direction of the triangular sliver Sb. This way As the sliver Sa comes out while being squeezed, the thickness of the sliver Sa increases. Even if the sliver Sa changes, the sliver Sa is always guided from the same position in the minimum state, The core sliver Sa is reliably guided to the center of the sheath sliver Sb. Become.

[0015] Then, the slivers Sa and Sb are rotated by a third roller that rotates at a predetermined rotational speed. 3. Pass through the apron 4 and front roller 5 sequentially and pull into a fiber bundle of a predetermined thickness. After that, it is twisted and wound into a package (not shown) or the like. Therefore, the outlet 7b of the core guide 7 is located downstream in the running direction of the sheath sliver Sa. By forming it into a triangular shape that is convex toward the side, the thickness and proportion of the sliver Sa can be adjusted. Regardless, the sliver Sa is always in the minimum state and is derived from the same position. Therefore, it is possible to reliably guide the core sliver Sa to the center of the sheath sliver Sb. Moreover, the outlet 7b of the core guide 7 is provided close to the third roller 3. Because of this, the core sliver Sa hardly spreads and remains in a thin state. Since the sliver is sandwiched between the rollers 3, the sliver that should be placed in the inner layer is placed in the inner layer, and the sliver that should be placed in the outer layer is placed in the inner layer. This ensures that the sliver is placed in the outer layer. As a result, the core sliver S a is completely wrapped in the sheath sliver Sb and wrapped around the center. Since the fibers are located at Do yarn can be produced stably.

[0016] Moreover, since the core guide 7 has an open upper part 7a except for the vicinity of the outlet 7b, This makes it easier to pass the core sliver Sa through the core guide 7, and the outlet 7b Since the sliver Sa is formed in a shape, the sliver Sa is prevented from coming off.

[0017]

[Effect of the idea]

In summary, according to the present invention, the outlet of the core guide is connected to the direction in which the sheath sliver runs. Since it is formed into a wedge shape that is convex toward the downstream side, it can be used regardless of the thickness of the sliver. , it is possible to reliably guide the core sliver to the center of the sheath sliver. Demonstrates excellent effects.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an example of a blend yarn manufacturing apparatus of the present invention.

FIG. 2 is a top view showing an example of the core guide of the present invention.

FIG. 3 is a sectional view showing the shape of the outlet of the core guide of the present invention.

[Explanation of symbols]

2 Back roller 6 Sheath guide (trumpet guide) 7 Core guide 7b Exit Sa core sliver Sb sheath sliver

Claims (1)

[Scope of utility model registration request] Claim 1: A sheath guide for guiding a sheath sliver is provided on the back roller, a core guide for guiding a core sliver is provided in the center of the sheath sliver from the back roller, and the exit of the core guide is connected to the sheath. 1. An apparatus for producing blend yarn, characterized in that the sliver is formed into a wedge shape that is convex toward the downstream side in the running direction.