CN103938316A - Device and method used for leveling ring spinning yarn hairiness - Google Patents

Abstract

The invention provides a device and method for leveling hairiness of ring spinning spun yarn. The device for leveling the hairiness of ring spinning spun yarns includes a roving feeding mechanism, a drafting mechanism and a twisting and winding mechanism, and is characterized in that it also includes a hairiness leveling mechanism; the hairiness leveling mechanism includes a fixed frame, Stepper motor, worm, driving gear, transmission gear, leveling roller and first yarn guide hook; described fixed frame is located between drafting mechanism and twisting winding mechanism; described first yarn guide hook and stepping The motors are all fixedly connected to the fixed frame, and the worm on the stepping motor is coupled with the drive gear; the transmission gear is sleeved on the leveling roller, and both ends are respectively sleeved on the fixed frame; the transmission gear is coupled drive gear. In the present invention, a hairiness leveling mechanism is added to the ring spinning machine to reduce the length of hairiness, increase the contact cohesion force between fibers, improve the utilization rate of fibers, and reduce the yarn breakage rate.

Description

A device and method for leveling hairiness of ring spinning spun yarn

technical field

The invention relates to the technical field of cotton textiles, in particular to a high-quality, low energy consumption, less hairiness and high-strength spinning technology for cotton yarn, viscose yarn and polyester yarn.

Background technique

The yarn prepared by the ring spinning system accounts for nearly 50% of the yarn products in the market. The quality indicators of the corresponding yarn are mainly evenness and strength. The key to determine the quality of the above two indicators is the protruding surface of the yarn. The length control of fiber end hairiness is also the key goal of spinning process optimization in cotton spinning ring spinning system. Since the 1960s, one of the key technologies of the ring spinning system is how to reduce the hairiness index, improve the utilization rate of fibers, make the fibers more uniform in the yarn body, and increase the contact cohesion of fibers in the yarn. Thereby shortening the length of the exposed yarn body at the fiber end, the protruding length of this part does not contribute to the strength of the yarn, but weakens the strength utilization of the fiber; moreover, the increase in hairiness also leads to the subsequent processing due to the attachment of hairiness to the machinery Product defects caused by top rollers or static electricity, so solving the problem of fiber hairiness in yarns has been a research topic that many enterprise technicians and scholars have been working on. At present, most of the methods are to renew the instrument in a drastic way, and import foreign new spinning equipment, such as air-jet spinning (Yu Chongwen, Zhang Wengeng. Free-end air-jet spinning yarn device. Invention patent number, 95113330.6, authorization announcement number CN1054895C, authorized Announcement date July 26, 2000; G. Schaeffler. Air-jet spinning machine. Invention patent number, 200580036148.X, authorized announcement number CN101044271B, authorized announcement date June 23, 2010), that is, the front roller of the spinning frame The air jet part is installed in the input or output area of the jaw, and the compressed airflow generated by the air jet part compresses the hairy fibers on the strands, so that the hairy fibers stick to the surface of the yarn, and the effective twisting and wrapping are obtained during the twisting process. entanglement, thereby reducing the yarn hairiness index; or compact spinning (Wang Yijun, Hu Hongcai. Compact spinning device of ring spinning machine. Invention patent number, 03115186.8, authorized announcement number CN1279231C, authorized announcement date October 11, 2006; Tang Zhengyong, Zhang Hongmei, Chen Kai. Compact spinning method. Invention patent number, 200910028111.2, authorized announcement number, CN101476186B, authorized announcement date, November 17, 2010; Chen Huiwen, Zhang Xiaofang, Kong Xiansheng, Li Hanying, Cao Haiyong. A method for Compact spinning device for ring spinning frame. Invention patent number, 201010549348.8, authorized announcement number, CN101974806B, authorized announcement date, August 8, 2012), also for installing negative pressure accessories on traditional ring spinning frames, although relying on negative pressure The fiber is condensed by the adsorption force, which reduces hairiness, but consumes a lot of energy and increases the cost. Although the principles of the first two methods are different, the former is air pressure, and the latter is vacuum-like negative pressure suction, but both consume large power and increase energy consumption, which is contrary to the advocated green processing and energy saving and emission reduction. Due to the different principles in the past, it is also a faster method in the past few decades.

Compared with traditional spun yarn, the market favors and requires high-quality spun yarn more, and the price difference with high-quality yarn is huge. Although the above method can improve the quality, the investment in updating equipment and huge energy consumption will lead to increased costs. , the short-term profit margin is small, and the replacement of this method will greatly challenge the pressure and living space of the enterprise. The reason is that this kind of method does not pay attention to the power consumption of the same quality yarn, that is, the technical improvement is carried out under the condition of constant production rate per unit time, and the result will inevitably increase the processing cost under the premise of increasing quality. ; Due to the failure to make breakthroughs in principle, such as compact spinning processing, increasing negative pressure near the front bottom roller of ring spinning to gather fibers, although hairiness and evenness have been optimized, but power consumption has increased significantly.

Therefore, it is necessary to make a breakthrough in principle to seek low energy consumption and high-quality spinning technology. Through the in-depth analysis of the first two spinning systems, the method of reducing the hairiness index is that the distance between the nip of the front roller is getting closer and closer, and the purpose is to make the boundary of the spinning triangle at the nip of the front roller smaller. However, the cost of these two methods is increased energy consumption. Therefore, it is proposed whether to rely on the power of the sliver and the spinning system to effectively comb and gather the sliver without increasing energy consumption, so as to reduce the hairiness index and improve fiber utilization without increasing energy consumption. spinning technology.

According to the inventor's spinning research in the past ten years, the key to improving yarn fiber utilization and spinning high-quality spun yarn is to focus on the spinning triangle area. By optimizing the transfer and evenness of fibers in the spun yarn, improve The degree of mutual contact and cohesion can effectively reduce yarn hairiness and improve evenness. And these spinning methods that can obtain high-quality, low energy consumption, and do not invest in purchasing new equipment by adding simple mechanisms with low cost, easy installation and maintenance to the original ring spinning system are currently many in our country. The needs of enterprises are also the expectations of many front-line spinning technology workers.

The present invention proposes a spinning device with uniform hairiness. Compared with the air-jet spinning and compact spinning systems, the hairiness fibers are combed and evenly placed on the yarn body in the twisting area to improve the contact cohesion of the fibers and reduce the Hairiness length. This method not only reduces the protruding and messy hairiness on the sliver, but also combs the back-curved hairy fibers, improves the utilization rate of fibers, reduces the end-breakage rate, and improves production efficiency. Compared with negative pressure compact spinning and air-jet spinning systems In terms of low energy consumption, which is lower than 2% to 20% of the traditional yarn forming technology, it reduces the product cost and improves the competitiveness of the product. This invention patent will greatly save the power consumption of high-quality yarn. Energy saving. Calculated based on the annual processing of 10 million tons of cotton yarn and viscose yarn in the country, 150 kilowatt-hours of electricity can be saved per ton, and the promotion of this technology can save 1.5 billion kilowatt-hours of electricity every year, which can greatly alleviate the electricity supply of some enterprises; and the yarn made of The fabric has the characteristics of good hand feeling, comfortable wearing, and close-fitting comfort, and has a broad market prospect.

Contents of the invention

The object of the present invention is to provide a device for leveling the hairiness of ring-spun spun yarns, which is used to comb the surface hairiness of the yarn in the twisting area, improve the evenness of hairiness fibers attached to the yarn body, and increase the degree of contact and cohesion between fibers , which increases the utilization rate of fibers; the purpose of this device is to provide spun yarns with less hairiness, high evenness, smoothness and high strength suitable for pure or blended spinning of cotton, viscose and polyester fibers.

In order to achieve the above object, the present invention provides a device for leveling the hairiness of ring-spun spun yarns, which includes a roving feeding mechanism, a drafting mechanism and a twisting winding mechanism, and is characterized in that it also includes a hairiness leveling mechanism; The hairiness leveling mechanism comprises a fixed frame, a stepping motor, a worm, a drive gear, a transmission gear, a leveling roller and the first yarn guide hook; the first yarn guide hook and the stepping motor are fixedly connected on the fixed frame, and the The worm on the stepping motor is coupled to the driving gear; the transmission gear is sleeved on the leveling roller, and both ends are respectively sleeved on the fixed frame; the transmission gear is coupled to the driving gear.

Preferably, the roving feeding mechanism includes an upper beam, a roving bobbin, a yarn guiding rod and a cluster horn, and the roving bobbin can be suspended on the upper beam; the drafting mechanism includes a rear top roller and a rear bottom roller Rear roller pair, the middle roller pair composed of middle upper roller and middle lower roller and the front roller pair composed of front upper roller and front lower roller; the rear lower roller, middle lower roller and front lower roller can be driven to rotate respectively to drive The rear top roller, the middle top roller and the front top roller rotate; the twisting and winding mechanism includes a second yarn guide hook, a traveler, a ring plate and a spinning bobbin, and the fixed frame is located in the drafting mechanism Between the front bottom roller and the second yarn guide hook.

Preferably, the roving feeding mechanism, the drafting mechanism, the hairiness leveling mechanism and the twisting and winding mechanism are arranged sequentially from top to bottom.

Preferably, the fixed frame is fixed on the spinning frame,

Preferably, the leveling roller is cylindrical with an outer diameter ranging from 5 mm to 20 mm.

More preferably, the outer diameter of the cylinder is 8mm.

Preferably, the adjustable range of the rotation speed of the leveling roller is 20 rpm-120 rpm.

Preferably, the covering angle _α1 between the leveling roller and the spun yarn is 10°-60°.

Preferably, the leveling roller is provided with leveling lines, and the included angle between the leveling lines and the centerline of the leveling roll axis is 0°-90°.

More preferably, the surface of the even texture is rough, the logarithmic value of the roughness ranges from 2 to 10, and the coefficient of variation of the logarithmic value of the roughness is 10% to 50%.

More preferably, the even texture is made of neoprene, nickel-plated stainless steel, polytetrafluoroethylene or polyurethane; the surface of the even texture has friction resistance, and the friction coefficient ranges from 0.05 to 0.8.

More preferably, the distance between adjacent lines of the uniform lines is in the range of 0.01mm-1mm.

The present invention also provides a method for attaching the above-mentioned device for leveling hairiness of ring spinning spun yarns to yarn hairiness, which is characterized in that it includes the following steps:

Step 1: Hang the roving bobbin of the roving feeding mechanism on the upper beam, and draw the roving to the nip of the rear top roller and rear bottom roller of the drafting mechanism through the yarn guide rod and the cluster horn;

Step 2: The rear bottom roller, middle bottom roller and front bottom roller of the drafting mechanism are driven to rotate, respectively driving the rear top roller, middle top roller and front top roller to rotate; the first draft is formed between the rear roller pair and the middle roller pair. The stretching area, the second drafting area is formed between the pair of middle rollers and the pair of front rollers, the roving is drafted by the drafting mechanism, and drafted by the cluster horn to the nip of the front top roller and front bottom roller;

Step 3: The yarn output from the nip of the front top roller and the front bottom roller passes through the first yarn guide hook of the hairiness leveling mechanism, winds around the upper surface of the leveling roller, and then passes through the second yarn guide hook and the traveler to add Twisting, the ring bar moves the spun yarn evenly onto the spun bobbin by moving up and down vertically.

The principle of the present invention lies in the friction effect of the entangled contact between the spun yarn and the surface of the hairiness leveling mechanism, which can perform surface hairiness combing and attachment control on the spun yarn that has been entangled, and can be controlled by the relative rotational force of the leveling pattern on the leveling roller and the spun yarn. False twisting is implemented on the spun yarn, and the hairiness is adjusted from the free state protruding on the yarn surface to the cohesive state evenly on the yarn body, which effectively improves the utilization rate of hairiness fibers in the yarn, improves the evenness of the yarn, and improves the Thick places and fine details are uneven, and the quality of spun yarn is stable. Due to the high degree of cohesion of fiber strands in this spinning, the effective straightness of fibers increases, the strength increases, and it is easy to twist. When the fine spinning machine is used for spinning, the yarn breakage rate per 1,000 spindles is significantly reduced, the spinning efficiency is increased, the spinning yield is increased, and the energy consumption is reduced. The technical method to realize its principle is to promote the uniformity and accumulation of the hairiness on the surface of the yarn output from the nip of the front roller into the yarn body by controlling the covering angle between the hairiness leveling mechanism and the spun yarn and the surface friction properties of the leveling pattern; that is, Through the interactive friction behavior between the even lines on the leveling roller and the spun yarn, the hairiness on the sliver is gently combed, the protruding fibers, messy fibers and back-bent fibers protruding from the surface of the sliver, and the fibers on the surface of the sliver are straightened and smoothed. In addition, the rotation of the leveling roller can effectively improve the twisting effect of the yarn, promote the cohesion of the fibers in the spinning triangle area, and reduce the random movement of the fiber shape caused by the long triangle area, so as to obtain less hairiness, Accumulated and high-strength twisted sliver, so the hairy fibers are combed straight, the twisting efficiency is improved, the energy consumption is reduced, and the yarn production rate is improved. Compared with negative pressure compact spinning and air-jet spinning with the same function, the energy consumption of preparing spun yarn with smooth surface, less hairiness, uniformity and high strength is relatively reduced.

Compared with prior art, the beneficial effect of the present invention is:

①The present invention adds a hairiness leveling mechanism to the ring spinning frame, which reduces the length of hairiness, increases the contact cohesion force between fibers, improves the fiber utilization rate, and reduces the yarn breakage rate;

② Install the hairiness leveling mechanism between the nip of the front roller and the yarn guide hook of the winding mechanism, which can efficiently control the free fibers on the surface of the yarn in the twisting area, and the messy hairiness on the carded yarn will be more straight and adhered to the yarn On the strip, the yarn hairiness is reduced, and the surface of the yarn is smoother and finer;

③Especially, it effectively reduces the breakage rate of the traditional cotton ring spinning frame per 1,000 spindles, improves spinning efficiency, reduces energy consumption, and the obtained spun yarn is clean, uniform and of high quality.

④The hairiness leveling mechanism involved in the present invention is low in cost and easy to install and maintain. Compared with the compact spinning system, the energy consumption per 1,000 spindles of the same quality spun yarn is reduced by 12-25%, and because the fibers are fully combed and utilized, the spun yarn The production rate of the stage is increased by 3%-10%.

5. The hairiness of the yarn gained in the present invention is even, and it is characterized in that it can be used for smoothness, less hairiness, high uniformity, high strength, small spinning triangle area, low spinning breakage rate and low energy consumption of cotton, viscose, and polyester , high-efficiency spinning.

Description of drawings

Figure 1 is the front view of the device for leveling hairiness of ring spinning spun yarn

Figure 2 is a side view from the angle AA' of the device for leveling the hairiness of ring-spun spun yarns

Figure 3 is a schematic diagram of the contact geometry between the hairiness leveling mechanism and the spun yarn

Figure 4 is a schematic diagram of the mechanical action of the hairiness leveling mechanism to level the spun yarn

Figure 5 is a schematic diagram of the hairiness leveling mechanism

Figure 6 is a schematic diagram of the leveling roller

In the figure: 1-roving feeding mechanism, 11-upper beam, 12-roving bobbin, 13-roving, 14-guiding rod, 15-converging horn;

2-drafting mechanism, 21-rear top roller, 22-rear bottom roller, 23-middle top roller, 24-middle bottom roller, 25-front top roller, 26-front bottom roller;

3-hairiness leveling mechanism, 31-fixed frame, 32-stepping motor, 33-worm, 34-driving gear, 35-transmission gear, 36-leveling roller, 361-leveling texture, 37-first yarn guide hook;

4-twisting and drafting mechanism, 41-second yarn guide hook, 42-spun yarn, 43-traveler, 44-planning board, 45-spun yarn tube.

Detailed ways

Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

Example 1

As shown in Figure 1, it is a front view of the device for leveling the hairiness of ring-spun spun yarns. The device for leveling the hairiness of ring-spun spun yarns includes a roving feeding mechanism 1, a drafting mechanism 2, twisting and winding Mechanism 4 and hairiness leveling mechanism 3; described roving feeding mechanism 1, drafting mechanism 2, hairiness leveling mechanism 3 and twisting and winding mechanism 4 are arranged sequentially from top to bottom, as shown in Figure 2, described drafting Stretching mechanism 2 comprises the back roller pair that is made up of back top roller 21 and back bottom roller 22, the middle roller pair that is made up of middle top roller 23 and middle bottom roller 24 and the front roller that is made up of front top roller 25 and front bottom roller 26 Right; the rear bottom roller 22, the middle bottom roller 24 and the front bottom roller 26 can be driven to rotate, respectively drive the rear top roller 21, the middle top roller 23 and the front top roller 25 to rotate; Two yarn guiding hooks 41, a traveler 43, a ring plate 44 and a spinning tube 45 are formed, and the traveler 43 is located at one end of the ring plate 44. The roving feeding mechanism 1 is placed above the drafting mechanism 2, and the hairiness leveling mechanism 3 is arranged below the front bottom roller 26 of the drafting mechanism 2 and placed above the twisting winding mechanism 4; as shown in Figure 5, the The hairiness leveling mechanism 3 is composed of a fixed frame 31, a stepping motor 32, a worm screw 33, a driving gear 34, a transmission gear 35, a leveling roller 36, and a first guide hook 37; the fixed frame 31 is fixed on the spinning frame , between the front bottom roller 26 and the second yarn guide hook 41 of the drafting mechanism 2; the first yarn guide hook 37 and the stepping motor 32 are fixed on the fixed frame 31, and the The worm 33 on the stepper motor 32 is coupled with the drive gear 34; the transmission gear 35 is sleeved on the leveling roller 36, and the two ends are respectively sleeved on the fixed frame 31; the transmission gear 35 is coupled with the drive gear 34.

As shown in FIG. 6 , the leveling roller 36 is cylindrical, and the leveling roller 36 is provided with leveling lines 361 , the surface of the leveling lines 361 is rough, and the surface of the leveling lines 361 has friction resistance. The diameter of the leveling roll 36, the rotational speed of the leveling roll 36, the wrapping angle _α1 of the leveling roll 36 and the spun yarn 42 (as shown in Figure 3), the angle θ between the leveling lines 361 and the center line of the leveling roll shaft (as shown in Figure 4 ), the logarithmic value of the roughness of the even lines 361, the coefficient of variation of the logarithmic values of the roughness of the even lines 361, the material of the even lines 361, the coefficient of friction of the even lines 361, and the distance between adjacent even lines 361 are shown in Table 1.

The device for leveling the hairiness of ring spinning spun yarn is applied to the attachment of yarn hairiness, and the specific steps for preparing polyester-cotton 65/35 blended yarn with less hairiness, low energy consumption, and uniform dryness are as follows:

Step 1: Suspend the roving bobbin 12 of the roving feeding mechanism 1 on the upper beam 11, draw the polyester-cotton 65/35 blended roving from the roving bobbin 12 via the yarn guide rod 14 and the clustering horn 15 to the drafting mechanism 2. The jaws of the rear top roller 21 and the rear bottom roller 22;

Step 2: The rear bottom roller 22, the middle bottom roller 24 and the front bottom roller 26 of the drafting mechanism 2 are driven to rotate, respectively driving the rear top roller 21, the middle top roller 23 and the front top roller 25 to rotate; The first drafting zone is formed between the pair of middle rollers, and the second drafting zone is formed between the pair of middle rollers and the pair of front rollers. The roving 13 is drafted by the drafting mechanism 2, and passed through the rear upper roller 21 and the rear lower roller 22 by the bunching horn 15 Rotate traction, middle top roller 23 and middle bottom roller 24 rotate and draft to the jaws of front top roller 25 and front bottom roller 26;

Step 3: The yarn output through the nip of the front top roller 25 and the front bottom roller 26 is then combed through the hairiness leveling mechanism 3, passed through the first yarn guide hook 37 of the hairiness leveling mechanism 3 in turn, and wound around the leveling roller 36 On the upper surface of the upper surface, the sliver input to the twisting winding mechanism 4 is twisted through the second yarn guide hook 41 and the traveler 43, and the ring plate 44 moves the spun yarn 42 evenly on the spun bobbin 45 by vertically moving up and down. The indicators of the obtained spun yarn 42, such as reduced hairiness index, improved evenness, improved strength, breakage rate per thousand spindles per hour, and energy consumption reduction rate, were tested, and compared with the indicators of the spun yarn without a hairiness leveling mechanism installed as follows Table 2.

Example 2

A device for leveling the hairiness of ring-spun spun yarns, similar to Embodiment 1, the difference lies in the diameter of the leveling roll 36, the rotation speed of the leveling roll 36, and the wrapping angle _α1 between the leveling roll 36 and the spun yarn 42 (as shown in Figure 3 shown), the angle θ between the leveling texture 361 and the centerline of the leveling roller shaft (as shown in Figure 4), the logarithmic value of the roughness of the leveling texture 361, the coefficient of variation of the logarithmic value of the roughness of the leveling texture 361, the evenness The materials of the textures 361 , the coefficient of friction of the smooth textures 361 , and the distance between adjacent smooth textures 361 are different, as shown in Table 1.

The device for leveling the hairiness of ring spinning spun yarn is applied to the attachment of yarn hairiness, and then the specific steps for preparing polyester-cotton 85/15 blended yarn with less hairiness, low energy consumption and uniform dryness are as follows:

Step 1: Hang the roving bobbin 12 of the roving feeding mechanism 1 on the upper beam 11, draw the polyester-cotton 85/15 blended roving from the roving bobbin 12 via the yarn guide rod 14 and the clustering horn 15 to the drafting mechanism 2. The jaws of the rear top roller 21 and the rear bottom roller 22;

Step 2: The rear bottom roller 22, the middle bottom roller 24 and the front bottom roller 26 of the drafting mechanism 2 are driven to rotate, respectively driving the rear top roller 21, the middle top roller 23 and the front top roller 25 to rotate; The first drafting zone is formed between the pair of middle rollers, and the second drafting zone is formed between the pair of middle rollers and the pair of front rollers. The roving 13 is drafted by the drafting mechanism 2, and passed through the rear upper roller 21 and the rear lower roller 22 by the bunching horn 15 Rotate traction, middle top roller 23 and middle bottom roller 24 rotate and draft to the jaws of front top roller 25 and front bottom roller 26;

Step 3: The yarn output through the nip of the front top roller 25 and the front bottom roller 26 is then combed through the hairiness leveling mechanism 3, passed through the first yarn guide hook 37 of the hairiness leveling mechanism 3 in turn, and wound around the leveling roller 36 On the upper surface of the upper surface, the sliver input to the twisting winding mechanism 4 is twisted through the second yarn guide hook 41 and the traveler 43, and the ring plate 44 moves the spun yarn 42 evenly on the spun bobbin 45 by vertically moving up and down. The indicators of the obtained spun yarn 42, such as reduced hairiness index, improved evenness, improved strength, breakage rate per thousand spindles per hour, and energy consumption reduction rate, were tested, and compared with the indicators of the spun yarn without a hairiness leveling mechanism installed as follows Table 2.

Example 3

A device for leveling the hairiness of ring-spun spun yarns, similar to Embodiment 1, the difference lies in the diameter of the leveling roll 36, the rotation speed of the leveling roll 36, and the wrapping angle _α1 between the leveling roll 36 and the spun yarn 42 (as shown in Figure 3 shown), the angle θ between the leveling texture 361 and the centerline of the leveling roller shaft (as shown in Figure 4), the logarithmic value of the roughness of the leveling texture 361, the coefficient of variation of the logarithmic value of the roughness of the leveling texture 361, the evenness The materials of the textures 361 , the coefficient of friction of the smooth textures 361 , and the distance between adjacent smooth textures 361 are different, as shown in Table 1.

The device for leveling the hairiness of ring spinning spun yarn is applied to the attachment of yarn hairiness, and then the specific steps for preparing polyester-viscose 85/15 blended yarn with less hairiness, low energy consumption and uniform dryness are as follows:

Step 1: Hang the roving bobbin 12 of the roving feeding mechanism 1 on the upper beam 11, draw the polyester/viscose 85/15 blended roving from the roving bobbin 12 via the yarn guide rod 14 and the clustering horn 15 to the top of the drafting mechanism 2. The jaws of the rear top roller 21 and the rear bottom roller 22;

Step 2: The rear bottom roller 22, the middle bottom roller 24 and the front bottom roller 26 of the drafting mechanism 2 are driven to rotate, respectively driving the rear top roller 21, the middle top roller 23 and the front top roller 25 to rotate; The first drafting zone is formed between the pair of middle rollers, and the second drafting zone is formed between the pair of middle rollers and the pair of front rollers. The roving 13 is drafted by the drafting mechanism 2, and passed through the rear upper roller 21 and the rear lower roller 22 by the bunching horn 15 Rotate traction, middle top roller 23 and middle bottom roller 24 rotate and draft to the jaws of front top roller 25 and front bottom roller 26;

Step 3: The yarn output through the nip of the front top roller 25 and the front bottom roller 26 is then combed through the hairiness leveling mechanism 3, passed through the first yarn guide hook 37 of the hairiness leveling mechanism 3 in turn, and wound around the leveling roller 36 The upper surface of the upper surface of the twisting and winding mechanism 4 is input to the sliver, and then twisted by the second yarn guide hook 41 and the traveler 43, and the ring plate 44 moves the spun yarn 42 evenly on the spun bobbin 45 by vertically moving up and down . The indicators of the obtained spun yarn 42, such as reduced hairiness index, improved evenness, improved strength, breakage rate per thousand spindles per hour, and energy consumption reduction rate, were tested, and compared with the indicators of the spun yarn without a hairiness leveling mechanism installed as follows Table 2.

Example 4

A device for leveling the hairiness of ring-spun spun yarns, similar to Embodiment 1, the difference lies in the diameter of the leveling roll 36, the rotation speed of the leveling roll 36, and the wrapping angle _α1 between the leveling roll 36 and the spun yarn 42 (as shown in Figure 3 shown), the angle θ between the leveling texture 361 and the centerline of the leveling roller shaft (as shown in Figure 4), the logarithmic value of the roughness of the leveling texture 361, the coefficient of variation of the logarithmic value of the roughness of the leveling texture 361, the evenness The materials of the textures 361 , the coefficient of friction of the smooth textures 361 , and the distance between adjacent smooth textures 361 are different, as shown in Table 1.

The device for leveling the hairiness of ring spinning spun yarn is applied to the attachment of yarn hairiness, and then the specific steps for preparing polyester-viscose 70/30 blended yarn with less hairiness, low energy consumption, and uniform dryness are as follows:

Step 1: Suspend the roving bobbin 12 of the roving feeding mechanism 1 on the upper beam 11, and draw the polyester/viscose 70/30 blended roving from the roving bobbin 12 via the yarn guiding rod 14 and the clustering horn 15 to the top of the drafting mechanism 2. The jaws of the rear top roller 21 and the rear bottom roller 22;

Step 2: The rear bottom roller 22, the middle bottom roller 24 and the front bottom roller 26 of the drafting mechanism 2 are driven to rotate, respectively driving the rear top roller 21, the middle top roller 23 and the front top roller 25 to rotate; The first drafting zone is formed between the pair of middle rollers, and the second drafting zone is formed between the pair of middle rollers and the pair of front rollers. The roving 13 is drafted by the drafting mechanism 2, and passed through the rear upper roller 21 and the rear lower roller 22 by the bunching horn 15 Rotate traction, middle top roller 23 and middle bottom roller 24 rotate and draft to the jaws of front top roller 25 and front bottom roller 26;

Step 3: The yarn output through the nip of the front top roller 25 and the front bottom roller 26 is then combed through the hairiness leveling mechanism 3, passed through the first yarn guide hook 37 of the hairiness leveling mechanism 3 in turn, and wound around the leveling roller 36 The upper surface of the upper surface of the twisting and winding mechanism 4 is input to the sliver, and then twisted by the second yarn guide hook 41 and the traveler 43, and the ring plate 44 moves the spun yarn 42 evenly on the spun bobbin 45 by vertically moving up and down . The indicators of the obtained spun yarn 42, such as reduced hairiness index, improved evenness, improved strength, breakage rate per thousand spindles per hour, and energy consumption reduction rate, were tested, and compared with the indicators of the spun yarn without a hairiness leveling mechanism installed as follows Table 2.

Example 5

A device for leveling the hairiness of ring-spun spun yarns, similar to Embodiment 1, the difference lies in the diameter of the leveling roll 36, the rotation speed of the leveling roll 36, and the wrapping angle _α1 between the leveling roll 36 and the spun yarn 42 (as shown in Figure 3 shown), the angle θ between the leveling texture 361 and the centerline of the leveling roller shaft (as shown in Figure 4), the logarithmic value of the roughness of the leveling texture 361, the coefficient of variation of the logarithmic value of the roughness of the leveling texture 361, the evenness The materials of the textures 361 , the coefficient of friction of the smooth textures 361 , and the distance between adjacent smooth textures 361 are different, as shown in Table 1.

The device for leveling the hairiness of ring spinning spun yarn is applied to the attachment of yarn hairiness, and then the specific steps for preparing polyester-viscose 90/10 blended yarn with less hairiness, low energy consumption and uniform dryness are as follows:

Step 1: Suspend the roving bobbin 12 of the roving feeding mechanism 1 on the upper beam 11, draw the polyester/viscose 90/10 blended roving from the roving bobbin 12 via the yarn guide rod 14 and the clustering horn 15 to the top of the drafting mechanism 2. The jaws of the rear top roller 21 and the rear bottom roller 22;

Step 2: The rear bottom roller 22, the middle bottom roller 24 and the front bottom roller 26 of the drafting mechanism 2 are driven to rotate, respectively driving the rear top roller 21, the middle top roller 23 and the front top roller 25 to rotate; The first drafting zone is formed between the pair of middle rollers, and the second drafting zone is formed between the pair of middle rollers and the pair of front rollers. The roving 13 is drafted by the drafting mechanism 2, and passed through the rear upper roller 21 and the rear lower roller 22 by the bunching horn 15 Rotate traction, middle top roller 23 and middle bottom roller 24 rotate and draft to the jaws of front top roller 25 and front bottom roller 26;

Step 3: The yarn output through the nip of the front top roller 25 and the front bottom roller 26 is then combed through the hairiness leveling mechanism 3, passed through the first yarn guide hook 37 of the hairiness leveling mechanism 3 in turn, and wound around the leveling roller 36 The upper surface of the upper surface of the twisting and winding mechanism 4 is input to the sliver, and then twisted by the second yarn guide hook 41 and the traveler 43, and the ring plate 44 moves the spun yarn 42 evenly on the spun bobbin 45 by vertically moving up and down . The indicators of the obtained spun yarn 42, such as reduced hairiness index, improved evenness, improved strength, breakage rate per thousand spindles per hour, and energy consumption reduction rate, were tested, and compared with the indicators of the spun yarn without a hairiness leveling mechanism installed as follows Table 2.

Table 1: The setting parameter table of 5 embodiments

Table 2: Test results of basic properties of spun yarns in 5 examples

Claims (10)

1. a device for leveling the hairiness of ring spinning spun yarns, comprising roving feeding mechanism (1), drafting mechanism (2) and twisting winding mechanism (4), is characterized in that, also comprises hairiness leveling mechanism ( 3); the described hairiness leveling mechanism (3) comprises a fixed frame (31), a stepper motor (32), a worm (33), a driving gear (34), a transmission gear (35), a leveling roller (36) and the first A yarn guiding hook (37); the first described yarn guiding hook (37) and the stepping motor (32) are all affixed on the fixed frame (31), and the worm on the described stepping motor (32) ( 33) coupling driving gear (34); the transmission gear (35) is socketed on the described leveling roller (36), and the two ends are respectively socketed on the fixed frame (31); the coupling driving of the transmission gear (35) gear (34). 2. The device for leveling hairiness of ring spinning spun yarns according to claim 1, characterized in that said roving feeding mechanism (1) comprises an upper beam (11), a roving bobbin (12), a yarn guiding rod (14) and cluster horn (15), the roving tube (12) can be suspended on the upper beam (11); The pair of rear rollers, the middle roller pair consisting of middle top roller (23) and middle bottom roller (24) and the front roller pair consisting of front top roller (25) and front bottom roller (26); the rear bottom roller (22 ), middle and bottom rollers (24) and front bottom rollers (26) can be driven to rotate, respectively drive the rear top roller (21), middle and top rollers (23) and front top rollers (25) to rotate; The winding mechanism (4) includes a second yarn guide hook (41), a traveler (43), a ring plate (44) and a spun bobbin (45), and the fixed frame (31) is located at the drafting mechanism ( 2) between the front bottom roller (26) and the second yarn guide hook (41). 3. The device for leveling hairiness of ring spinning spun yarn according to claim 1 or 2, characterized in that, said leveling roller (36) is cylindrical with an outer diameter ranging from 5 mm to 20 mm. 4. The device for leveling the hairiness of ring spinning spun yarn according to claim 1 or 2, characterized in that the adjustable range of the rotation speed of the leveling roller (36) is 20 rpm-120 rpm minute. 5. The device for leveling the hairiness of ring spinning spun yarns as claimed in claim 1 or 2, characterized in that, the covering angle α ₁ of the leveling roller (36) and the spun yarn (42) is 10°-60° °. 6. The device for leveling the hairiness of ring spinning spun yarns according to claim 1 or 2, characterized in that, the leveling roller (36) is provided with leveling lines (361), and the leveling lines (361) ) and the centerline of the leveling roller shaft are at an angle of 0°-90°. 7. The device for leveling the hairiness of ring spinning spun yarns as claimed in claim 6, characterized in that, the surface of said leveling lines (361) is rough, and the logarithmic value range of the roughness is 2-10, and the roughness The coefficient of variation of the log values is 10%-50%. 8. The device for leveling hairiness of ring spinning spun yarn according to claim 6, characterized in that, said leveling lines (361) are made of neoprene, nickel-plated stainless steel, polytetrafluoroethylene or polyurethane ; The surface of the uniform texture (361) has friction resistance, and the range of friction coefficient is 0.05-0.8. 9. The device for leveling hairiness of ring spinning spun yarn according to claim 6, characterized in that the distance between adjacent lines of said leveling lines (361) ranges from 0.01 mm to 1 mm. 10. The method for applying the device for leveling the hairiness of ring spinning spun yarn according to any one of claims 2-9 to the attachment of yarn hairiness, it is characterized in that, comprising the following steps: Step 1: Hang the roving tube (12) of the roving feeding mechanism (1) on the upper beam (11), and draw the roving (13) to the (2) at the jaws of the rear upper roller (21) and the rear lower roller (22); Step 2: The rear bottom roller (22), the middle bottom roller (24) and the front bottom roller (26) of the drafting mechanism (2) are driven to rotate, respectively driving the rear top roller (21), the middle top roller (23) and The front top roller (25) rotates; the first drafting zone is formed between the rear roller pair and the middle roller pair, the second drafting zone is formed between the middle roller pair and the front roller pair, and the roving (13) is drawn by the drafting mechanism (2 ) drafting, drafted by cluster horn (15) to the jaws of front top roller (25) and front bottom roller (26); Step 3: The yarn output through the nip of the front top roller (25) and the front bottom roller (26), passes through the first yarn guide hook (37) of the hairiness leveling mechanism (3), and winds the warp leveling roller (36) The upper surface of the upper surface is twisted through the second yarn guide hook (41) and the traveler (43), and the ring plate (44) evenly winds the spun yarn (42) onto the spun bobbin (45) by moving up and down vertically.