阅读说明：本技术 一种降低紧密纺能耗的装置及其使用方法 (Device for reducing energy consumption of compact spinning and use method thereof ) 是由 王新厚 杨亚楠 于 2020-05-15 设计创作，主要内容包括：本发明提供了一种降低紧密纺能耗的装置及其使用方法,包括异型管、异型管固定件和吸风斜槽盖片,吸风斜槽盖片的切口有异形槽和圆形斜槽,异形槽设置在纤维进入集聚区的初始位置,异形槽的后续切口为若干圆形斜槽；吸风斜槽盖片固定在异型管上,异型管固定在异型管固定件上,异型管固定件还固定有张力杆,张力杆设置在异型管和带齿前罗拉之间。本发明可以降低紧密纺装置的负压能耗,提高紧密纺装置的负压利用率,适用于纺制不同支数纱线,适用范围广且效果明显,所采用的吸风斜槽及张力杆结构简单,方便对现有四罗拉负压式紧密纺装置进行改造,能在降低能耗的同时提高纱线质量。(The invention provides a device for reducing energy consumption of compact spinning and a using method thereof, and the device comprises a special-shaped pipe, a special-shaped pipe fixing piece and an air suction chute cover plate, wherein a cut of the air suction chute cover plate is provided with a special-shaped groove and a round chute, the special-shaped groove is arranged at an initial position where fibers enter an aggregation area, and subsequent cuts of the special-shaped groove are a plurality of round chutes; the cover plate of the air suction chute is fixed on the special-shaped pipe, the special-shaped pipe is fixed on the special-shaped pipe fixing piece, and the tension rod is further fixed on the special-shaped pipe fixing piece and arranged between the special-shaped pipe and the front roller with the teeth. The invention can reduce the negative pressure energy consumption of the compact spinning device, improve the negative pressure utilization rate of the compact spinning device, is suitable for spinning yarns with different counts, has wide application range and obvious effect, adopts the air suction chute and the tension rod with simple structures, is convenient to reform the existing four-roller negative pressure compact spinning device, and can improve the yarn quality while reducing the energy consumption.)

1. A device for reducing energy consumption of compact spinning comprises a special-shaped pipe (7), a special-shaped pipe fixing piece (5) and an air suction chute cover plate (8), and is characterized in that a cut of the air suction chute cover plate (8) is provided with a special-shaped groove (1) and a circular chute (2), the special-shaped groove (1) is arranged at an initial position where fibers enter an aggregation area, and subsequent cuts of the special-shaped groove (1) are a plurality of circular chutes (2); the utility model discloses a mechanical tubes, including shaped tube mounting (5), induced draft chute cover plate (8), shaped tube mounting (5), tension bar (4) are fixed on shaped tube mounting (5), tension bar (4) set up between shaped tube (7) and take tooth front roller (6).

2. The apparatus for reducing energy consumption of compact spinning according to claim 1, characterized in that the cut of the suction chute cover plate (8) further comprises a rectangular chute (3), the rectangular chute (3) being disposed behind the circular chute (2).

3. The apparatus for reducing energy consumption for compact spinning according to claim 2, wherein said circular chutes (2) are uniformly distributed and have an inclination of 2-15 ° with respect to the vertical direction, i.e., the advancing direction of the strands.

4. The device for reducing the energy consumption of compact spinning according to claim 1, wherein the width of the upper end of the special-shaped groove (1) is 3-6mm, the width of the lower end is 0.5-2mm, the length is 3-6mm, the right end is a circular arc, the radius of the upper half circular arc is about 0.4-1mm, and the radius of the lower half circular arc is 3.2-6 mm; the radius of the circular chute (2) is 0.3-1.5mm, the distance between the circle centers is 1-4mm, the section of the tension rod (4) is circular, and the radius is 0.5-2.5 mm.

5. An apparatus for reducing energy consumption for compact spinning as claimed in claim 3, wherein said rectangular chute (3) has a width of 1-1.4mm and a length of 2-5 mm.

6. The use method of the device capable of reducing the energy consumption of the compact spinning device is characterized by comprising the following steps:

(1) replacing a special-shaped tube fixing piece (5) on the original compact spinning device with the special-shaped tube fixing piece (5) with a tension rod (4); a control area is formed between the front roller (6) with teeth and the special pipe (7) to ensure that the fiber transfer process moves stably;

(2) according to the fineness of the yarn, selecting an air suction chute cover plate (8) with a proper angle, shape and size, buckling and inserting the cover plate on a special-shaped pipe (7), and inserting the special-shaped pipe (7) on a special-shaped pipe fixing piece (5) with a tension rod (4);

(3) selecting roving suitable for quantification, and setting spinning parameters such as spindle rotation speed, yarn twist and rear zone draft multiple according to yarn fineness and variety;

(4) according to the fineness of the yarn, the motor is adjusted to a proper frequency, so that the negative pressure value can meet the spinning requirement;

(5) the above parameters are set, and spinning and subsequent testing are performed.

Technical Field

The invention relates to the field of new spinning technology, in particular to a device for reducing energy consumption of compact spinning and a using method thereof.

Background

Compact spinning is a novel spinning technology developed on the basis of ring spinning. It mainly utilizes the action of mechanical concentration or negative pressure control to reduce or even eliminate twisting triangular space by adding a concentration device. For the negative pressure type compact spinning device, when the fiber bundle in the airflow field passes through the air suction chute, the turning of the outer layer fiber and the integral rolling of the inner layer fiber form a unique double-layer structure of the compact yarn; the mechanical compact spinning device only aims at eliminating the spinning triangle area, namely reducing the hairiness, and does not have the characteristic of a negative pressure compact spinning double-layer in the aspect of yarn structure change at present. Therefore, the negative pressure type compact spinning device becomes one of the most widely used spinning modes at home and abroad. Especially the four-roller compact spinning device, occupies about 70% of the market share.

Through the action of negative pressure airflow in the gathering area, the fiber bundle turns and moves transversely, the fiber strands are cylindrical, and the width of the twisting triangular area is greatly reduced, so that the aims of reducing hairiness, improving yarn strength, optimizing yarn structure, saving raw materials and improving product added value are fulfilled. The negative pressure energy consumption at the special-shaped tube of the negative pressure type compact spinning device accounts for a large part of the operation cost of the whole spinning frame, but only a small part of air flow generates forces along the radial direction and the axial direction of the fiber strands to play a role in aggregation, and the majority of air flow does not act on fiber aggregation, so that the utilization efficiency of the air flow is low. And the non-control area between the front roller with teeth and the special pipe is larger, and the fiber strand can drop or shake left and right in the process of transferring from the roller to the special pipe, so that the strand enters the gathering area, and the fiber strand shakes, and the yarn quality is not improved.

Chinese patent application publication No. CN110923867A discloses a power-saving anti-blooming wear-resistant plate, wherein the lower end of the air suction groove of the wear-resistant plate is provided with a tail end air suction groove hole, so that blooming can be reduced. However, the square slotted hole is added on the basis of the air suction groove, so that the opening area is enlarged, and the reduction of energy consumption is not facilitated.

Chinese patent application publication No. CN103361785A discloses a four-roller compact spinning airflow guide device which can prevent single fibers from diffusing, ensure fibers to be gathered in a parallel state, and reduce negative pressure consumption. However, how to solve the problem of the uncontrolled area between the toothed front roller and the special pipe is not considered, and the stable running of the fiber in the transfer process cannot be ensured, so that the yarn quality is influenced.

Disclosure of Invention

The invention aims to provide a device for reducing the energy consumption of compact spinning and a use method thereof, which can reduce the negative pressure energy consumption of the compact spinning device, improve the negative pressure utilization rate of the compact spinning device and improve the yarn quality.

The technical scheme adopted by the invention for solving the technical problem is as follows: a device for reducing energy consumption of compact spinning comprises a special pipe, a special pipe fixing piece and an air suction chute cover plate, wherein a cut of the air suction chute cover plate is provided with a special-shaped groove and a circular chute, the special-shaped groove is arranged at an initial position where fibers enter an aggregation area, and subsequent cuts of the special-shaped groove are a plurality of circular chutes; the cover plate of the air suction chute is fixed on the special-shaped pipe, the special-shaped pipe is fixed on the special-shaped pipe fixing piece, and the tension rod is further fixed on the special-shaped pipe fixing piece and arranged between the special-shaped pipe and the front roller with the teeth.

Furthermore, the notch of the air suction chute cover plate also comprises a rectangular chute which is arranged behind the circular chute.

Furthermore, the circular chutes are uniformly distributed and have an inclination angle of 2-15 degrees with the vertical direction, namely the advancing direction of the fiber strands.

Furthermore, the width of the upper end of the special-shaped groove is 3-6mm, the width of the lower end is 0.5-2mm, the length is 3-6mm, the right end is an arc, the radius of the upper half arc is about 0.4-1mm, and the radius of the lower half arc is 3.2-6 mm; the radius of the circular chute is 0.3-1.5mm, the distance between the circle centers is 1-4mm, the section of the tension rod is circular, and the radius is 0.5-2.5 mm.

Furthermore, the width of the rectangular chute 3 is 1-1.4mm, and the length is 2-5 mm.

The invention also provides a using method of the device capable of reducing the energy consumption of the compact spinning device, which comprises the following steps:

(1) replacing the special-shaped tube fixing piece on the original compact spinning device with the special-shaped tube fixing piece with the tension rod; a control area is formed between the front roller with teeth and the special pipe, so that the fiber transfer process is stable in movement;

(2) according to the fineness of the yarn, selecting an air suction chute cover plate with a proper angle, shape and size, buckling and inserting the cover plate on the special-shaped pipe, and buckling and inserting the special-shaped pipe on a special-shaped pipe fixing piece with a tension rod;

(3) selecting roving suitable for quantification, and setting spinning parameters such as spindle rotation speed, yarn twist and rear zone draft multiple according to yarn fineness and variety;

(4) according to the fineness of the yarn, the motor is adjusted to a proper frequency, so that the negative pressure value can meet the spinning requirement;

(5) the above parameters are set, and spinning and subsequent testing are performed.

The invention can reduce the negative pressure energy consumption of the compact spinning device, improve the negative pressure utilization rate of the compact spinning device, is suitable for spinning yarns with different counts, has wide application range and obvious effect, adopts the air suction chute and the tension rod with simple structures, is convenient to reform the existing four-roller negative pressure compact spinning device, and can improve the yarn quality while reducing the energy consumption.

Drawings

FIG. 1 is a schematic view of a cover plate structure of an air suction chute combining a special-shaped groove and a circular chute;

FIG. 2 is a schematic view of a cover plate structure of an air draft chute combining a special-shaped chute, a circular chute and a rectangular chute;

FIG. 3 is a schematic structural view of a tension rod, a toothed front roller and a mechanical tube fixing member;

FIG. 4 is a schematic structural view (front view) of a tension rod, a toothed front roller and a mechanical tube fixing member;

FIG. 5 is a schematic structural view of a four-roller negative pressure compact spinning device with the device.

1. The special-shaped groove, 2, round chute, 3, rectangular chute, 4, tension rod, 5, special-shaped tube fixing piece, 6, toothed front roller, 7, special-shaped tube, 8 and air suction chute cover plate.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the following embodiments are specifically described with reference to the attached drawings. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

As shown in fig. 1-4, a device for reducing energy consumption of compact spinning comprises a special pipe 7, a special pipe fixing piece 5 and a suction chute cover plate 8, wherein a cut of the suction chute cover plate 8 is provided with a special-shaped groove 1 and a circular chute 2.

The irregular groove 1 is arranged at the initial position of the fiber entering the gathering area, the width of the upper end of the irregular groove 1 is 3-6mm, the width of the lower end is 0.5-2mm, the length is 3-6mm, the right end is an arc, the radius of the upper half arc is about 0.4-1mm, and the radius of the lower half arc is 3.2-6 mm. At the initial position of the fiber entering the gathering area, the loose irregular groove 1 is adopted to gather the fiber strands, so that the fiber strands entering the gathering area are ensured to be acted by a larger airflow force at the initial gathering stage, and the fibers are ensured to be gathered and tightly clasped rapidly, thereby being beneficial to the fiber head and tail ends to enter the yarn main body to reduce hairiness.

The subsequent cuts of the special-shaped groove 1 are a plurality of circular chutes 2, the radiuses of the circular chutes 2 are 0.3-1.5mm, the distance between the circle centers is 1-4mm, and an inclination angle of 2-15 degrees is formed between the circle centers and the vertical direction. The intermittent negative pressure supply method allows the small diffusion of the fiber strands, and ensures the negative pressure energy after the fiber strands are narrowed. The shape of the chute enables the width of the finally output fiber strand to meet the process requirement, reduces the opening area, saves energy consumption and improves the gathering effect at the same time. The inclination angle with the vertical direction is to ensure better integral movement and turnover of the fibers and further reduce hairiness.

Compared with the prior art, the opening area of the air suction chute cover plate 8 is reduced by at least 30 percent, the air flow required for reaching the optimal air flow speed is small, namely, the required frequency of the frequency converter is low, the energy consumption is low, and the guarantee is provided for reducing the energy consumption.

The air suction chute cover plate 8 is fixed on the special-shaped pipe 7, and the special-shaped pipe 7 is fixed on the special-shaped pipe fixing piece 5.

The special pipe fixing piece 5 is also fixed with a tension rod 4, the section of the tension rod 4 is circular, the radius of the tension rod 4 is 0.5-2.5mm, and the tension rod is arranged between the special pipe 7 and the toothed front roller 6. The tension bar 4 can provide support for the fibers, reducing the length of the uncontrolled zone before the fibers enter the concentrated zone. Due to the existence of the control area between the toothed front roller 6 and the special pipe 7, after the fiber strands are drafted, the longitudinal friction force at the position is increased and the fiber strands stretch forwards, so that the floating fibers of the fiber strands are greatly reduced in the process of transferring the fiber strands to the special pipe 7, the transfer and the movement of the fiber strands are ensured to be stably carried out, and the yarn performance is improved.

The notch of the air suction chute cover plate 8 also comprises a rectangular chute 3, the width of the rectangular chute 3 is 1-1.4mm, the length of the rectangular chute 3 is 2-5mm, and the rectangular chute is arranged behind the circular chute 2. The slightly diffused fiber strands are further gathered at the rectangular chute 3, so that the fiber strands are tightly cohered, most fibers enter the yarn main body, the strength of the spun yarn is further improved, and harmful hairiness is greatly reduced.

As shown in fig. 5, when the device is used, the mechanical tube fixing piece 5 with the tension rod 4 is firstly used to replace the mechanical tube fixing piece 5 on the original compact spinning device; a control area is formed between the toothed front roller 6 and the profiled tube 7, so that the fiber transfer process is stable in movement. According to the fineness of the yarn, an air suction chute cover plate 8 with a proper angle, shape and size is selected and buckled on a special-shaped pipe 7, and the special-shaped pipe 7 is inserted into a special-shaped pipe fixing piece 5 with a tension rod 4. Selecting roving suitable for quantification, and setting spinning parameters such as spindle rotation speed, yarn twist and rear zone draft multiple according to yarn fineness and variety. According to the fineness of the yarn, the motor is adjusted to a proper frequency, so that the negative pressure value can meet the spinning requirement. The above parameters are set, and spinning and subsequent testing are performed.