阅读说明：本技术 一种纱线张力自调节的横机纱嘴装置 (Yarn tension self-adjusting flat knitting machine yarn nozzle device ) 是由 丛洪莲 蒋高明 李玉贤 董智佳 吴光军 于 2021-07-13 设计创作，主要内容包括：本发明所述在原有纱嘴组件的基础上,添加了张力自调节装置,其包含滑动纱筒和滑槽,滑动穿纱筒可以在滑槽内上下运动。纱线从电脑横机一侧进入滑动穿纱筒,后进入固定穿纱筒,最后进入纱嘴口进入编织。其中滑动穿纱筒在滑槽内的位置由纱线自身张力调控,当机头回转,纱线张力变小时,滑动纱筒在滑槽内自动下降,从而使纱线张紧,利于编织。本发明所述纱线张力自调节的横机纱嘴装置安装在固定纱筒上方,占地小且造价低廉,当机头回转时能根据纱线张力变化进行自主调控,无需人工干预,可以改善织片边缘线圈大小结构不匀的问题。(The tension self-adjusting device is added on the basis of the original yarn nozzle assembly and comprises a sliding yarn cylinder and a sliding groove, and the sliding yarn penetrating cylinder can move up and down in the sliding groove. The yarn enters the sliding yarn-threading cylinder from one side of the computerized flat knitting machine, then enters the fixed yarn-threading cylinder, and finally enters the yarn nozzle to be knitted. The position of the sliding yarn penetrating tube in the sliding groove is regulated and controlled by the tension of the yarn, when the machine head rotates, the tension of the yarn is reduced, the sliding yarn penetrating tube automatically descends in the sliding groove, and therefore the yarn is tensioned, and weaving is facilitated. The yarn tension self-adjusting flat knitting machine yarn nozzle device is arranged above the fixed yarn cylinder, the occupied area is small, the manufacturing cost is low, when the machine head rotates, the automatic regulation and control can be carried out according to the yarn tension change, manual intervention is not needed, and the problem that the size and the structure of a fabric piece edge coil are uneven can be solved.)

1. The utility model provides a yarn tension self-interacting's flat-bed machine yarn mouth device which characterized in that: the automatic yarn feeding device comprises a yarn barrel (1), a yarn adding frame (2), a yarn storage device (3), a side yarn spring (4), a tension self-adjusting device (5), a fixed yarn threading barrel (6) and a yarn nozzle (7), wherein yarn is unwound from the yarn barrel (1), is wound to the yarn storage device (3) after passing through the yarn adding frame (2), is transmitted to the tension self-adjusting device (5) on the yarn nozzle through the side yarn spring (4), and enters the yarn nozzle (7) through the fixed yarn threading barrel (6);

the tension self-adjusting device (5) is provided with a sliding groove (11), a sliding yarn threading barrel (10) capable of sliding back and forth along the sliding groove (11) is arranged in the sliding groove (11), and yarns penetrate through the sliding yarn threading barrel (10) and then enter a yarn nozzle (7) through a fixed yarn threading barrel (6).

2. The weft knitting machine yarn feeder device for yarn tension control according to claim 1, characterized in that: the tension self-adjusting device (5) is arranged above the fixed yarn threading barrel (6).

3. The weft knitting machine yarn feeder device for yarn tension control according to claim 1, characterized in that: the tension self-adjusting device (5) is fixed on the yarn nozzle rod (9).

4. The weft knitting machine yarn feeder device for yarn tension control according to claim 1, characterized in that: the tension self-adjusting device (5) inclines upwards for a certain angle.

5. The weft knitting machine yarn feeder device for yarn tension control according to claim 1, characterized in that: when the sliding yarn-threading cylinder (10) is positioned at the uppermost end of the sliding chute (11), the included angle alpha formed by the yarn passing through the sliding yarn-threading cylinder (10) and the fixed yarn-threading cylinder (6) and the tension self-adjusting device (5) is not less than 90 degrees.

6. The yarn tension regulating weft knitting machine yarn feeder device according to claim 5, characterized in that: when the sliding yarn-threading cylinder (10) is positioned at the uppermost end of the sliding chute (11), the included angle alpha formed by the yarn passing through the sliding yarn-threading cylinder (10) and the fixed yarn-threading cylinder (6) and the tension self-adjusting device (5) is 90-93 degrees.

Technical Field

The invention belongs to the technical field of textile machinery, and particularly relates to a yarn nozzle device of a flat knitting machine with self-adjusting yarn tension.

Background

The yarn nozzle on the computerized flat knitting machine is used for guiding the yarn to enter the knitting, and the yarn firstly passes through the yarn penetrating cylinder on the yarn nozzle and then penetrates into the yarn nozzle opening to be knitted. After one row of knitting, the yarn nozzle leaves the knitting area firstly, and then the machine head controls the yarn nozzle to return to knit the next row. The existing flat knitting machine generally enters from one side of the machine, and during the back knitting process, the excess thread at the yarn nozzle can not be timely recovered, so that the yarn tension is increased, and the up-down movement of the stitches at the edge of a knitted piece is different in size. The different tensions cause the loops to vary in size, thereby creating a 1-2 inch texture or mesh at the edges of the panel. The existing computerized flat knitting machine is provided with tension devices on the side surface of the machine to recover excess threads, but the tension devices are far away from a yarn nozzle, the revolving speed of a machine head is too high, the reaction of the tension devices is not timely enough, and the tension of yarns is difficult to regulate and control timely.

Disclosure of Invention

The invention aims to solve the technical problem of providing a yarn tension self-adjusting flat knitting machine yarn nozzle device, which solves the problem that the yarn tension is difficult to regulate and control in time when a machine head rotates, can automatically regulate and control according to the yarn tension change when the machine head rotates, does not need manual intervention, and can solve the problem that the size and the structure of a fabric piece edge coil are uneven.

In order to solve the technical problems, the invention adopts a technical scheme that: the flat knitting machine yarn nozzle device with the yarn tension self-adjusting function comprises a yarn barrel, a yarn adding rack, a yarn storage device, a side line spring, a tension self-adjusting device, a fixed yarn threading barrel and a yarn nozzle, wherein yarn is unwound from the yarn barrel, is wound to the yarn storage device after passing through the yarn adding rack, is transmitted to the tension self-adjusting device on the yarn nozzle through the side line spring, and then enters the yarn nozzle through the fixed yarn threading barrel;

the tension self-adjusting device is provided with a sliding groove, a sliding yarn threading cylinder capable of sliding back and forth along the sliding groove is arranged in the sliding groove, and yarns penetrate through the sliding yarn threading cylinder and then enter the yarn nozzle through the fixed yarn threading cylinder.

Further, the tension self-adjusting device is installed above the fixed yarn threading drum.

Further, the tension self-adjusting device is fixed on the yarn nozzle rod.

Further, the tension self-adjusting device is inclined upwards at a certain angle.

Further, when the sliding yarn threading cylinder is positioned at the uppermost end of the sliding groove, the included angle alpha formed by the yarn passing through the sliding yarn threading cylinder and the fixed yarn threading cylinder and the tension self-adjusting device is not less than 90 degrees.

Further, when the sliding yarn-threading cylinder is positioned at the uppermost end of the sliding groove, an included angle alpha formed by the yarn which passes through the sliding yarn-threading cylinder and the fixed yarn-threading cylinder and the tension self-adjusting device is 90-93 degrees.

The advantages of the invention are as follows:

the yarn tension self-adjusting flat knitting machine yarn nozzle device is arranged above the fixed yarn cylinder, the occupied area is small, the manufacturing cost is low, when the machine head rotates, the automatic regulation and control can be carried out according to the yarn tension change, manual intervention is not needed, and the problem that the size and the structure of a fabric piece edge coil are uneven can be solved.

Drawings

Fig. 1 is a schematic structural diagram of a yarn nozzle device of a flat knitting machine with self-adjusting yarn tension according to the invention.

Fig. 2 is a schematic structural view of the tension self-adjusting device.

Fig. 3 is a schematic view of the installation of the tension self-adjusting device.

Description of reference numerals: 1-yarn cylinder, 2-yarn adding frame, 3-yarn storage device, 4-side wire spring, 5-tension self-adjusting device, 6-fixed yarn threading cylinder, 7-yarn nozzle, 8-machine head, 9-yarn nozzle rod, 10-sliding yarn threading cylinder and 11-chute.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be embodied in other specific forms than those described herein, and it will be apparent to those skilled in the art that the present invention may be practiced without departing from the spirit and scope of the present invention.

The invention discloses a yarn tension self-adjusting flat knitting machine yarn nozzle device, which takes the yarn nozzle structure of a Longxing E14 double-needle bed computerized flat knitting machine as an example, and the specific parameters are as follows: machine number E14; the highest speed is 1.4 m/s; the width is 52 inches. The flat knitting machine yarn nozzle device is shown in figure 1 and comprises a yarn barrel 1, a yarn adding rack 2, a yarn storage device 3, side line springs 4, a tension self-adjusting device 5, a fixed yarn threading barrel 6 and a yarn nozzle 7, wherein yarns are unwound from the yarn barrel 1, enter the yarn storage device 3 after passing through the yarn adding rack 2, are transmitted into the tension self-adjusting device 5 on the yarn nozzle through the side line springs 4, enter the yarn nozzle 7 through the fixed yarn threading barrel 6 and finally enter a knitting area.

When the machine head 8 moves left and right to select the yarn nozzle for weaving, a certain amount of surplus yarn is generated, and the sideline spring 4 can absorb a part of the surplus yarn through rebounding, so that the yarn tension is properly increased. However, since the sideline spring is far away from the yarn nozzle, the speed of the machine head driving the yarn nozzle to rotate is too high, and a small amount of residual yarn can not be absorbed by the sideline spring, so that the structure of the edge coil is uneven.

As shown in fig. 2, the tension self-adjusting device 5 is fixed on the yarn nozzle rod 9 through screws, a sliding chute 11 is arranged on the tension self-adjusting device 5, a sliding yarn threading cylinder 10 capable of sliding back and forth along the sliding chute 11 is arranged in the sliding chute 11, and the yarn passes through the sliding yarn threading cylinder 10 and then enters the yarn nozzle 7 through the fixed yarn threading cylinder 6. Under the action of the yarn tension, the sliding package 10 moves up and down in the chute 11. Under normal weaving conditions, the yarn tension is stable and the sliding package 10 is above the chute 11 under the action of the yarn. When the nose 8 drives the yarn nozzle 7 to rotate, the yarn tension is reduced, and the sliding yarn penetrating cylinder 10 slides downwards in the sliding groove 11 to tension the yarn. In the process of sliding down, the distance between the sliding yarn threading cylinder 10 and the fixed yarn threading cylinder 6 is gradually increased, the residual yarn quantity can be absorbed by the sliding yarn threading cylinder, and the tension of the weaving yarn can be ensured to be in a stable state.

The tension self-adjusting device 5 is set according to the size of the available space of the yarn nozzle. The tension self-adjusting device 5 is arranged above the fixed yarn threading barrel 6 and has a distance H. The chute 11 is L in length, M in width and N in height. The sliding yarn threading cylinder 10 moves in the sliding groove 11, and in a normal weaving state, the sliding yarn threading cylinder 10 is located above the sliding groove 11 under the action of yarn tension, and the machine head 8 drives the yarn nozzle 7 to gradually slide downwards when rotating, so that the purpose of adjusting the tension is achieved.

In order to achieve the purpose, the tension self-adjusting device is inclined upwards by an inclination angle beta; in the process of sliding down the sliding yarn-threading cylinder, the distance K between the two yarn-threading cylinders is gradually lengthened to ensure that the remaining yarn is absorbed by the sliding yarn-threading cylinder, therefore, when the sliding yarn-threading cylinder 10 is positioned at the uppermost end of the sliding chute 11, the included angle alpha formed by the yarn passing between the sliding yarn-threading cylinder 10 and the fixed yarn-threading cylinder 6 and the tension self-adjusting device 5 is not less than 90 degrees, and is generally selected to be 90-93 degrees.

The weft knitting machine yarn nozzle device with self-adjusting yarn tension provided by the application is described in detail, a specific example is applied in the description to explain the principle and the implementation mode of the application, and the description of the embodiment is only used for helping to understand the method and the core idea of the application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.