Yarn breaking prevention mechanism for forward drafting godet

Abstract

The utility model relates to the technical field of fiber godets, and particularly discloses a positive drafting godet anti-breakage mechanism which comprises a vertical plate and a round rod, a sliding groove is formed in one side of the upper end of the vertical plate, a sliding block is connected in the sliding groove in a sliding mode, and the lower end of the sliding block is elastically connected with an installation block. One end of the round rod penetrates through the mounting block and is rotationally connected with the mounting block through a bearing, a baffle is mounted at one end of the round rod through a fastening bolt, the outer wall of the round rod is sleeved with a stepped sleeve, one end of the stepped sleeve is connected with the baffle, and the other end of the stepped sleeve is fixed to the round rod through a connecting bolt. The downtime, the fracture, falling off, bypassing and other phenomena of the drawing roller are obviously reduced, the fiber strength is maintained to be not lower than 2.60 cN / dtex, the single yarn strength of spinning is obviously improved, + 200% neps and 100,000-meter yarn faults are obviously reduced, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fiber guide rollers, in particular to a positive drafting guide roller anti-wire breakage mechanism. Background Art

[0002] In the fiber forming process, in order to increase the molecular arrangement order of the fiber and thus improve the physical and mechanical properties of the finished fiber, the filament bundle in the plastic state needs to be stretched between the godet roller and the drafting roller, which is called drafting. This stretching is achieved by the traction of the drafting roller and the blocking effect of the godet roller.

[0003] In the spinning process of the six SJS production lines, the godet rollers are negatively drafted. Under the condition of consistent total draft, in order to ensure that the finished product strength is not less than 2.60cN / dtex, it is necessary to increase the draft ratio between the godet roller and the drafting roller, which results in the yarn being broken and the number of times it wraps around the rollers increasing. Although the fiber strength is achieved and the physical indicators appear acceptable, the number of broken yarns increases, resulting in an increase in short fibers, flying flowers, powder, and cut defects when used by customers, which is not conducive to downstream spinning. Utility Model Content

[0004] The utility model aims to provide a positive drafting guide roller anti-wire breakage mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positive drafting wire guide roller anti-wire breakage mechanism, comprising: a vertical plate and a round rod, a slide groove is opened on one side of the upper end of the vertical plate, a slider is slidably connected in the slide groove, a mounting block is elastically connected to the lower end of the slider, and one end of the round rod passes through the mounting block and is rotatably connected to the mounting block through a bearing;

[0006] A baffle is installed at one end of the round rod through a fastening bolt, a stepped sleeve is sleeved on the outer wall of the round rod, one end of the stepped sleeve is connected to the baffle, and the other end is fixed to the round rod through a connecting bolt.

[0007] Preferably, a mounting plate is fixedly mounted on the upper end of the vertical plate, a threaded rod is threadedly connected to the side wall of the mounting plate, and the lower end of the threaded rod passes through the mounting plate and is rotatably connected to the upper end of the slider.

[0008] Preferably, a plurality of telescopic rods are evenly fixed between the slider and the mounting block, a spring is sleeved on the outer wall of each telescopic rod, and upper and lower ends of the spring are respectively fixed on the side walls of the slider and the mounting block.

[0009] Preferably, the outer wall of the bearing is fixedly mounted on the side wall of the mounting block, and one end of the round rod passes through the bearing and is fixedly connected to the inner wall thereof.

[0010] Preferably, a threaded hole 1 is formed on an outer wall of one side of the round rod, and a threaded hole 2 is formed on a side wall of one end of the round rod.

[0011] Preferably, a sleeve is fixedly mounted on one end of the baffle, the sleeve and the baffle are sleeved on the outer wall of the round rod, and the sleeve is fixed by a fastening bolt.

[0012] Preferably, the inner diameter of the stepped sleeve decreases from the outside to the inside, and a groove is provided on the outer end side wall of the stepped sleeve.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The stepped rollers have a significant effect in reducing the load on the drafting machine. Downtime, drafting roller breakage, falling off, bypassing and other phenomena are significantly reduced. The fiber strength is maintained at no less than 2.60cN / dtex, the strength of single yarn is significantly improved, +200% cotton knots, and 100,000 meters of yarn defects are significantly reduced, and product quality is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a partial structural schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the installation of the round rod and stepped sleeve of the utility model;

[0018] Figure 4 It is a schematic diagram of the round rod and stepped sleeve of the utility model.

[0019] In the figure: 1. vertical plate; 2. slide groove; 3. slider; 4. mounting block; 5. bearing; 6. telescopic rod; 7. spring; 8. round rod; 9. threaded hole 1; 10. threaded hole 2; 11. sleeve; 12. baffle; 13. fastening bolt; 14. stepped sleeve; 15. groove; 16. connecting bolt; 17. mounting plate; 18. threaded rod. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 - Figure 4The utility model provides a technical solution: a positive drafting guide roller anti-wire breaking mechanism, comprising: a vertical plate 1 and a round rod 8, a slide groove 2 is opened on one side of the upper end of the vertical plate 1, a slider 3 is slidably connected in the slide groove 2, a mounting block 4 is elastically connected to the lower end of the slider 3, the outer wall of the mounting block 4 is slidably connected to the inner wall of the slide groove 2, a plurality of telescopic rods 6 are evenly fixed between the slider 3 and the mounting block 4, a spring 7 is sleeved on the outer wall of each telescopic rod 6, the upper and lower ends of the spring 7 are respectively fixed on the side walls of the slider 3 and the mounting block 4, and the mounting block 4 can slide at the lower end of the slider 3 by compressing the spring 7.

[0022] A mounting plate 17 is fixedly installed on the upper end of the vertical plate 1. The mounting plate 17 is located directly above the slide groove 2. The mounting plate 17 serves to strengthen the vertical plate 1. A threaded rod 18 is threadedly connected to the side wall of the mounting plate 17. The lower end of the threaded rod 18 passes through the mounting plate 17 and is rotatably connected to the upper end of the slider 3. A toggle rod is fixedly installed on the upper end of the threaded rod 18. The threaded rod 18 can be driven to rotate by rotating the toggle rod. When the threaded rod 18 rotates, it can move in the mounting plate 17, thereby driving the slider 3 and the mounting block 4 to slide up and down in the slide groove 2.

[0023] One end of the round rod 8 passes through the mounting block 4 and is rotatably connected to the mounting block 4 through the bearing 5. The outer wall of the bearing 5 is fixedly mounted on the side wall of the mounting block 4. One end of the round rod 8 passes through the bearing 5 and is fixedly connected to the inner wall thereof. The round rod 8 can rotate on the mounting block 4. A threaded hole 9 is provided on the outer wall of one side of the round rod 8, and a threaded hole 10 is provided on the side wall of one end of the round rod 8.

[0024] A baffle 12 is installed at one end of the round rod 8 through a fastening bolt 13, and a sleeve 11 is fixedly installed at one end of the baffle 12. The sleeve 11 and the baffle 12 are sleeved on the outer wall of the round rod 8. A bolt hole is opened on the sleeve 11. One end of the fastening bolt 13 passes through the bolt hole and is threadedly connected to the inner wall of the threaded hole 9, thereby fixing the baffle 12.

[0025] A stepped sleeve 14 is sleeved on the outer wall of the round rod 8, one end of the stepped sleeve 14 is connected to the baffle 12, and the other end is fixed to the round rod 8 by a connecting bolt 16. The inner diameter of the stepped sleeve 14 decreases from the outside to the inside, and a groove 15 is provided on the outer end side wall of the stepped sleeve 14. By passing one end of the connecting bolt 16 through the groove 15 and threadedly connected to the inner wall of the threaded hole 10, the inner side of the outer end of the connecting bolt 16 is in contact with the inner end side wall of the groove 15, thereby fixing the stepped sleeve 14.

[0026] Drafting ratio calculation formula: Drafting ratio = (drafting roller speed - godet roller speed) / godet roller speed * 100%. Replace the negative drafting godet roller with a stepped positive drafting godet roller during maintenance. For form and size, see Figure 4 .

[0027] The stepped wire guide rollers gradually increase in diameter from inside to outside, which brings about a partial draft of 10%, and the remaining draft (41% to 45%) is provided by mechanical parts such as the drafting machine, and the total draft (51% to 55%) remains unchanged. This ensures that the strength of the finished product is not less than 2.60cN / dtex.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positive drafting godet roller anti-wire breakage mechanism, comprising: A vertical plate (1) and a round rod (8), wherein a slide groove (2) is provided on one side of the upper end of the vertical plate (1), and a slider (3) is slidably connected in the slide groove (2), characterized in that: the lower end of the slider (3) is elastically connected to a mounting block (4), and one end of the round rod (8) passes through the mounting block (4) and is rotatably connected to the mounting block (4) through a bearing (5); A baffle (12) is installed at one end of the round rod (8) via a fastening bolt (13); a stepped sleeve (14) is sleeved on the outer wall of the round rod (8); one end of the stepped sleeve (14) is connected to the baffle (12), and the other end is fixed to the round rod (8) via a connecting bolt (16).

2. A positive drafting guide roller anti-wire breakage mechanism according to claim 1, characterized in that: A mounting plate (17) is fixedly mounted on the upper end of the vertical plate (1), a threaded rod (18) is threadedly connected to the side wall of the mounting plate (17), and the lower end of the threaded rod (18) passes through the mounting plate (17) and is rotatably connected to the upper end of the slider (3).

3. The positive drafting guide roller anti-wire breakage mechanism according to claim 1, characterized in that: A plurality of telescopic rods (6) are evenly fixed between the slider (3) and the mounting block (4), and a spring (7) is sleeved on the outer wall of each telescopic rod (6). The upper and lower ends of the spring (7) are respectively fixed on the side walls of the slider (3) and the mounting block (4).

4. The positive drafting guide roller anti-wire breakage mechanism according to claim 1, characterized in that: The outer wall of the bearing (5) is fixedly mounted on the side wall of the mounting block (4), and one end of the round rod (8) passes through the bearing (5) and is fixedly connected to the inner wall thereof.

5. The positive drafting guide roller anti-wire breakage mechanism according to claim 1, characterized in that: A threaded hole 1 (9) is provided on an outer wall of one side of the round rod (8), and a threaded hole 2 (10) is provided on a side wall of one end of the round rod (8).

6. The positive drafting guide roller anti-wire breakage mechanism according to claim 1, characterized in that: A sleeve (11) is fixedly mounted on one end of the baffle (12); the sleeve (11) and the baffle (12) are sleeved on the outer wall of the round rod (8); and the sleeve (11) is fixed by a fastening bolt (13).

7. The positive drafting guide roller anti-wire breakage mechanism according to claim 1, characterized in that: The inner diameter of the stepped sleeve (14) decreases from the outside to the inside, and a groove (15) is provided on the outer end side wall of the stepped sleeve (14).

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