CN203513863U - Four-roller three-rove feeding double-compact-spinning device - Google Patents

Abstract

The utility model discloses a four-roller three-rove feeding double-concentration spinning device, which includes a cotton-collecting bellows and four-roller four-apron structure, and a three-bell-mouth feeding device is installed on the position of the yarn guide bar of the rear roller. A mechanical magnetic collector is installed on the rear roller, a split roller device is installed at the nip of the middle and rear roller, the middle front roller is a narrow groove negative pressure hollow middle front roller, and the cotton collecting bellows The two air passages arranged on the surface include a first air passage and a second air passage, and the second air passage is connected with the front roller in the narrow groove type negative pressure. The utility model can realize feeding and spinning of three rovings at the same time, effectively improve the color style of the yarn, realize the close collection of the mixed fiber strands before entering the main drafting area in the front area, and effectively realize the fiber strands after drafting. The sliver is twisted in a tight state, which greatly improves the yarn quality and effectively increases the draft multiple, so that three kinds of rovings of general quantitative can be fed into the spinning at the same time, and the spinning efficiency can be effectively improved.

Description

A four-roller three-rove feeding double compact spinning device

technical field

The utility model relates to the new technology field of spinning, in particular to a four-roller three-roving feeding double-concentrating spinning device. the

Background technique

The drafting system is an important part of the spinning frame, and its performance directly affects the yarn quality. At present, the common spinning frame adopts the three-roller drafting form, including the common three-roller double-apron structure and the three-roller four-apron structure that can achieve 80-100 times larger draft. The ordinary three-roller double-apron structure is divided into two drafting areas: the front drafting area and the rear drafting area, and the rear area only uses simple rollers for drafting, so the friction force circle in the middle is relatively weak, and the draft ratio is generally less than 1.4 times, which is unfavorable to increase the total draft ratio of the spinning frame, so the total draft ratio is between 20 and 50. In order to solve the problem of low drafting capacity in the rear area, in the Chinese patents "Drawing device for high-count worsted spinning frame" (patent number: 96107383) and "four-apron drafting mechanism for spinning frame" (patent number: 012439010) A three-roller three-apron drafting mechanism and a three-roller four-apron drafting mechanism are respectively disclosed, which better solve the problem of weak drafting capacity in the rear area of the three-roller drafting mechanism, so that the total drafting ratio can be increased to 100 . However, because it adopts a three-roller form, that is, there are only two drafting areas, it cannot achieve super large drafting. In view of this, a four-apron large drafting mechanism for spinning frames is disclosed in the Chinese patent "Four-Apron Large Drafting Device for Spinning Frame" (Patent No.: 200520073617.2), which increases the total draft ratio to 150. the

At present, the textile and garment industry is in an era of pursuing fashion, diversification and high quality, and people's requirements for clothing fabrics are also constantly increasing. The feeding method makes the yarn color style lower; the front and rear areas of the device rely on the upper top roller and the lower roller friction to affect the yarn quality, but this simple treatment method is likely to cause coarse sand splitting, uneven mixing and fiber strands The untwisted situation after twisting cannot meet people's new requirements for the development of textile raw materials, restricts spinning efficiency, and affects yarn quality. the

Contents of the invention

The technical problem to be solved by the utility model is to provide a four-roller three-roving feeding double compact spinning device. the

In order to achieve the above purpose, the utility model adopts the following technical scheme: a four-roller three-roving feeding double compact spinning device, including a cotton collecting bellows, a rear drafting roller pair composed of a rear roller and a rear top roller, a middle and rear roller The pair of middle and rear drafting rollers composed of middle and rear top rollers, the pair of middle and front drafting rollers composed of middle front rollers and middle front top rollers, the pair of front drafting rollers composed of front rollers and anti-twisting top rollers, the rear rollers A three-flare feeding device is installed at the position of the yarn guide rod, a mechanical magnetic collector is installed on the rear roller, a split roller device is installed at the nip of the middle and rear rollers, and the middle and front rollers are narrow Groove type negative pressure hollow center front roller, two air ducts are arranged on the surface of the cotton collecting bellows, including the first air duct and the second air duct, the second air duct is connected with the narrow slot negative pressure hollow center front roller, the A pressure-sensing automatic cotton scraping device is installed inside the cotton-collecting bellows. The front roller in the narrow-groove negative pressure medium is a steel hollow roller with a diameter of 50mm. The surface of the steel hollow roller is provided with narrow grooves arranged according to a certain rule. There is a suction component inside. the

After adopting the above structure, the three rovings can be fed into the yarn at the same time, which can effectively improve the color style of the yarn. At the same time, a mechanical magnetic collector is installed on the rear roller, and a split roller device is installed on the middle and rear roller to realize feeding. The drafting and uniform mixing of the incoming three rovings in the rear area, the middle front roller adopts narrow groove negative pressure hollow rollers, which can realize the gathering effect of the mixed fiber strands before entering the main drafting area in the front area, and improve the yarn quality ; On the other hand, adopting four-row drafting rollers can upgrade the two drafting zones of the original three-roller structure: the front drafting zone and the rear drafting zone, to the current three drafting zones: the front drafting zone, the middle The drafting zone and the post-drafting zone can effectively increase the drafting multiple, and the total drafting multiple can be increased to more than 300 times, so that three kinds of general quantitative rovings can be fed into spinning at the same time, and the spinning efficiency can be effectively improved. the

Description of drawings

Fig. 1 is a structural schematic diagram of a four-roller three-rove feeding double-concentration spinning device of the present invention;

Fig. 2 is a schematic diagram of the structure of the cotton collecting bellows. the

Detailed ways

As shown in Figures 1 and 2, a four-roller three-rove feeding double-concentration spinning device includes a collection bellows 13, a rear drafting roller pair composed of a rear roller 6 and a rear top roller 15, and a middle and rear roller 7 The middle and rear drafting roller pair composed of the middle and rear top roller 16, the middle and front drafting roller pair composed of the middle front roller 8 and the middle front top roller 17, the front drafting roller pair composed of the front roller 9 and the anti-twisting top roller 18 , the position of the yarn guide rod of the rear roller is equipped with a three-bell mouth feeding device 4, which is characterized in that: a mechanical magnetic collector 5 is installed on the rear roller 6, and a jaw of the middle and rear roller 7 is added. Equipped with a split roller device 10, the middle front roller 8 is a narrow groove type negative pressure hollow center front roller, and the surface of the cotton collecting bellows 13 is provided with two air passages including a first air passage 14 and a second air passage 12. The second air duct 12 is connected with the narrow groove type negative pressure hollow center front roller 8, and the pressure sensing automatic cotton scraping device 19 is arranged inside the cotton collecting bellows 13, and the narrow groove type negative pressure center front roller 8 is a 50mm in diameter The steel hollow roller is provided with narrow grooves arranged according to certain rules on the surface of the steel hollow roller, and the air suction assembly 11 is installed inside it. the

During the yarn process, the three rovings 1, 2 and 3 are fed from the rear roller 6 by the three-flare feeding device 4, and then the three rovings fed are closely assembled by the action of the mechanical force of the mechanical magnetic collector 5. After the rear rovings are drafted and sorted in the rear zone, they are driven by the middle and rear rollers 7 to enter the splitting roller device 10, so as to realize the splitting and mixing of the fiber strands sorted in the rear zone, and further realize the uniform mixing of the fed three rovings After finishing and mixing the fiber strands, after being drawn in the middle zone, they are tightly assembled again under the negative pressure accumulation of the front roller 8 in the narrow groove negative pressure, and then enter the main drafting zone in the front zone to complete the drafting effect. The final fiber is twisted into yarn, and then wound on the bobbin through the yarn guide hook. the

Claims (2)

1. roller three rove feed two collecting-spinning devices, comprise collection cotton bellows (13), the first break draft roller pair being formed by rear roller (6) and rear roller (15), middle rear roller (7) with in after the middle first break draft roller pair that forms of roller (16), the middle front draft roller pair that middle front roller (8) and middle front leather roller (17) form, the front draft roller pair that front roller (9) and resistance twist roller (18) form, described rear roller lever jack position adds three horn mouth feeding units (4), it is characterized in that: on described rear roller (6), install a kind of mechanical type magnetic collector (5) additional, described middle rear roller (7) jaw place adds cuts apart roller arrangement (10), described middle front roller (8) is the hollow middle front roller of narrow slot type negative pressure, the cotton bellows of described collection (13) surface arranges two air channels and comprises the first air channel (14) and the second air channel (12), described the second air channel (12) is connected with the hollow middle front roller of narrow slot type negative pressure (8), the cotton bellows of described collection (13) inside arranges the automatic cotton-sweeping equipment of pressure sensitive (19).

2. a kind of four roller three rove feed two collecting-spinning devices according to claim 1, it is characterized in that, in described narrow slot type negative pressure, front roller (8) is the steel hollow roller of a diameter 50mm, described steel hollow roller surface is provided with the narrow groove that rule is arranged, and air draught assembly (11) is equipped with in its inside.

Images