CN110760968A

CN110760968A - Folded yarn drafting and reducing device and yarn winding forming machine using same

Info

Publication number: CN110760968A
Application number: CN201911217265.6A
Authority: CN
Inventors: 崔洪涛
Original assignee: Xiongxian Qinfeng Textile Manufacturing Co Ltd
Current assignee: Xiongxian Qinfeng Textile Manufacturing Co Ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-02-07

Abstract

The invention provides a plied yarn drafting and reducing device which comprises two driving wheels rotating synchronously, wherein the two driving wheels comprise an inner driving wheel and an outer driving wheel, both the inner driving wheel and the outer driving wheel are provided with wheel grooves, the surfaces of the wheel grooves are frosted surfaces, plied yarns are input from the outer driving wheel and output from the inner driving wheel, and the diameter of the wheel groove of the outer driving wheel is smaller than that of the wheel groove of the inner driving wheel. The invention also provides a yarn winding forming machine using the plied yarn drafting and reducing device. In the stretching process of the plied yarn, the stress changes only at the moment of transition from the small-diameter external movable wheel to the large-diameter internal movable wheel, the lead-in part and the lead-out part are stressed uniformly, the plied yarn formed by combining single yarns with different lengths can be stretched and reduced into plied yarn formed by combining single yarns with the same length, and the yarn winding forming machine device is simple and reliable and occupies small space.

Description

Folded yarn drafting and reducing device and yarn winding forming machine using same

Technical Field

The invention relates to the field of yarn making, in particular to a plied yarn drafting and reducing device and a yarn winding forming machine using the same.

Background

When producing blended fabric, interwoven fabric and fancy yarn, the dye liquor and the fiber are physically or chemically combined by means of a dyeing box, and the yarn is dyed first, so that the fabric is ensured to have uniform color and luster and good dyeing fastness. The yarn is placed into a dyeing box for dip dyeing, and is heated during dip dyeing, so that the dyeing liquid is properly heated, and the improvement of the adhesion of the dyeing liquid is facilitated. Shrinking after yarn dyeing is commonly called shrinking. Yarns are also known as singles, threads are the result of the combined twisting of two or more singles, and threads are also known as plied threads. Shrinkage causes different lengths of each single yarn after the single yarns are combined and twisted, the yarns are easy to break during sewing, and the yarns shrink to cause wrinkles and have dull appearance, so that the leather of the clothes is not attractive.

The invention patent with application number 201610671594.8 discloses a yarn winding machine, which comprises a machine frame, a small yarn barrel and a large yarn barrel, wherein a yarn guide plate, a yarn returning roller, a yarn guide strip and a plurality of driving rollers are sequentially arranged on the machine frame along a yarn feeding direction, a yarn guide device for adjusting the yarn distance is further arranged between the driving rollers and the large yarn barrel, and a yarn collecting roller is further arranged between the yarn guide device and the large yarn barrel. The invention uses the big bobbin and the small bobbin with the diameter difference, and because various devices with the functions of transmission, guidance and adjustment are arranged between the big bobbin and the small bobbin, whether the small bobbin is stretched or not compared with the yarn wound on the big bobbin can not be judged.

Disclosure of Invention

In order to solve the above problems, the present invention provides a plied yarn drafting and reducing device and a yarn winding and forming machine using the same, which drafts and reduces single yarns with different lengths in plied yarns into single yarns with the same length.

The technical scheme is as follows:

the utility model provides a folded yarn draft reduction device, includes two driving wheels, two driving wheels synchronous rotations, the driving wheel includes interconnect's first race and second race, and the diameter of first race is less than the diameter of second race, and the leading-in portion that race diameter and first race diameter are the same is outwards extended to first race one end, and the output portion that race diameter and second race diameter are the same is outwards extended to the second race other end.

The two driving wheels rotate synchronously, the angular speeds are equal, the diameter of the second wheel groove is larger than that of the first wheel groove, so that the linear speed of the second wheel groove is larger than that of the first wheel groove, the surface of the wheel groove of the driving wheels is a frosted surface, the frosted surface generates friction force to drive the twine to pass through the first wheel groove first and then pass through the second wheel groove, and the peripheral speed difference of the surface of the wheel groove causes the twine on the second wheel groove to generate elastic elongation. The invention provides a yarn needing to be stretched, which is a folded yarn, wherein the folded yarn is formed by combining and twisting three single yarns with different lengths together, and when the folded yarn passes through a second wheel groove, the three single yarns are stretched to the maximum extent, namely, the shorter single yarn is stretched after being stretched, so that the single yarn is as long as other long single yarns and is restored to a state before shrinking, and the folded yarn after being stretched is flat, natural and glossy. In addition, the force variation of the stranded wire is uniform at the leading-in part and the leading-out part only at the moment of transition from the first wheel groove with small diameter to the second wheel groove with large diameter in the whole stretching process, the driving wheel is provided with the leading-in part which is mutually straight with the first wheel groove and the leading-out part which is mutually straight with the second wheel groove, the stranded wire is easily led in to the driving wheel and is easily output by the driving wheel, and under the condition that the machine runs at high speed, the position of the stranded wire on the driving wheel cannot be shifted due to the leading-in part and the leading-out part and the adoption of one-time complete stretching, so that the situation that the stranded wire is pulled away from the wheel groove of the driving wheel is not easily caused.

Further, the inlet portion and the outlet portion have two or more wheel grooves. The stretching premise is that the stretching is tight, when the movable wheel rotates, the folded yarn cannot be loosened, and the friction force of the wheel groove needs to drive the folded yarn to be conveyed, so that the movable wheel tends to run at a higher speed. In order to match the high-speed operation of the machine, the number of the wheel grooves of the inlet part and the outlet part should be at least two.

Further, the diameter ratio of the first wheel groove to the second wheel groove is 10: 11. The diameter ratio of the first wheel groove and the second wheel groove is set, so that each single yarn of the plied yarn is fully stretched to the maximum, but the yarn breakage is avoided.

Further, the introduction part has three wheel grooves, the output part has three wheel grooves, the diameter of the first wheel groove is 30mm, and the diameter of the second wheel groove is 33 mm.

A yarn winding forming machine comprises a feeding device, a winding device and a device arranged between the feeding device and the winding device, wherein the device is a plied yarn drafting and reducing device.

The plied yarn drafting and reducing device is arranged between a feeding device and a winding device, and drafts short single yarns in plied yarns formed by combining and twisting single yarns with different lengths, and the short single yarns are as long as other long single yarns after being drafted and are reduced to be in a state before shrinkage. Thus, the drawn plied yarn is flat and natural and glossy. The yarn combination of the feeding device is guided into the movable wheel, is stretched by the pair of movable wheels and is output to the winding device, the guiding part is used for guiding the stretched yarn combination to the first wheel groove, and the output part is used for guiding the stretched material to the package of the next process after the stretching of the first wheel groove is finished. When the yarn winding forming machine runs at a high speed, the yarn winding forming machine is provided with the leading-in part and the leading-out part, and the yarn winding forming machine adopts one-time full stretching, so that the position of the folded yarn on the movable wheel is not deviated, and the situation that the folded yarn is pulled away from the wheel groove of the movable wheel is not easy to occur. The plied yarn drafting and reducing device does not make the yarn winding forming machine become tall and big and has the characteristic of compactness. The whole yarn winding forming machine device is simple and reliable.

Furthermore, the feeding device comprises a yarn feeding part and a plurality of wire wheels, and the winding device comprises the wire wheels, a traverse arm and a package bobbin. The yarn feeding part feeds the dyed folded yarn, the folded yarn passes through a plurality of wire wheels and is smoothed out in the transition process of the wire wheels, and the folded yarn is wound on the wire wheels to run along with the wire wheels before being drafted, so that the folded yarn is not tightened. After the yarn is drafted, the yarn is passed through a traverse wheel, and a traverse arm reciprocates the yarn in the width direction of the package rotating around the shaft to traverse the yarn, whereby the yarn is wound around a winding bobbin.

Further, the yarn is provided with spacing portion around rolling up the make-up machine, and spacing portion is used for controlling the trend of the strand that closes.

Furthermore, the yarn inlet sides of the two driving wheels are provided with a yarn feeding part, a first wire wheel and a second wire wheel, and the yarn outlet sides of the two driving wheels are provided with a third wire wheel, a traverse arm and a package bobbin; the device is provided with a first limiting part and a second limiting part, the first limiting part is placed between the yarn feeding part and the first reel, and the second limiting part is arranged between the second reel and the driving wheel. And a limiting part is arranged at a proper position to control the trend of the folded yarn.

Compared with the prior art, the technical scheme has the advantages that the pair of movable wheels is provided, the folded yarn is lapped on the movable wheels, the first wheel groove and the second wheel groove with different diameters are arranged, the circumferential speed difference on the surfaces of the wheel grooves can stretch the folded yarn at one time, the stress of the folded yarn is changed only at the moment that the folded yarn is transited from the first wheel groove with the small diameter to the second wheel groove with the large diameter in the stretching process, the stress is uniform in the leading-in part and the leading-out part, short single yarns in the folded yarn which is formed by combining and twisting the single yarns with different lengths are stretched to be long after being stretched, the single yarns with different lengths are as long as other long single yarns, and the folded yarn which is stretched is flat and natural and glossy after being reduced to the state before shrinkage. The stretching device only occupies the space between the two moving wheels while fully stretching, occupies small space, does not cause the equipment to become tall and large, and has the characteristic of compactness. The movable sheave is provided with an inlet portion which is straight with the first sheave groove and an outlet portion which is straight with the second sheave groove, so that the folded yarn is easily introduced to the movable sheave and is easily output from the movable sheave.

The plied yarn drafting and reducing device is used on a yarn winding forming machine, the plied yarn drafting and reducing device is arranged between the feeding device and the winding device, and the plied yarn drafting and reducing device stretches short single yarns in plied yarns formed by combining and twisting single yarns with different lengths to be as long as other long single yarns and reduces the single yarns to be in a state before shrinkage, so that the plied yarns after drafting are flat and natural and glossy. The yarn combination of the feeding device is guided into the yarn combination drafting and reducing device, is stretched by a pair of driving wheels and then is output to the winding device, the guiding part is used for guiding the stretched yarn combination to the first wheel groove, and the output part is used for guiding the stretched material to the package of the next process after the stretching of the first wheel groove is finished. When the winding forming machine runs at a high speed, the position of the folded yarn on the movable wheel cannot be shifted because the winding forming machine is provided with the leading-in part and the leading-out part and adopts one-time full stretching, and the situation that the folded yarn is pulled away from the wheel groove of the movable wheel is not easy to occur. The feeding device and the winding device are respectively provided with a plurality of wire wheels and a limiting part, the wire wheels are used for smoothing the folded yarn, the folded yarn is not tightened before being drafted, and the limiting part is used for controlling the trend of the folded yarn. The plied yarn drafting and reducing device does not make the winding forming machine become tall, and the winding forming machine has the characteristic of compactness. The whole yarn winding forming machine device is simple and reliable.

Drawings

Fig. 1 is a schematic structural view of a driving wheel of the plied yarn drafting and reducing device of the invention.

Fig. 2 is a schematic view of the use state of the plied yarn drafting and reducing device of the invention.

Fig. 3 is a simplified diagram of the plied yarn drafting reduction device of the invention.

Fig. 4 is a schematic structural view of a yarn winding machine according to the present invention.

Fig. 5 is a schematic structural view of an embodiment of the yarn winding machine according to the present invention.

The drawing includes a driving sheave 1, a first sheave 11, a second sheave 12, an introduction portion 13, an output portion 14, a yarn feeding portion 2, a drum 3, a first drum 31, a second drum 32, a third drum 33, a traverse arm 4, a winding bobbin 5, a stopper portion 6, a first stopper portion 61, and a second stopper portion 62.

Detailed Description

The invention is further described below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The present invention is characterized in that a twisted yarn to be stretched is directly introduced to a pair of movable wheels 1, is pulled by a pulley, is introduced to the pair of movable wheels 1, or is introduced to the pair of movable wheels 1 after passing through a yarn feeding portion 2, and is stretched while the movable wheels 1 are running. Fig. 1 shows one form of a runner used in the present invention. The invention relates to a fiber plied yarn single filament drafting and fixing device which is composed of a pair of driving wheels which are combined by a driving wheel 1 shown in figure 1. In general, it is preferable that the pair of wheels 1 have the same size and are rotatable in the same direction and at the same speed in terms of speed adjustment. The rotation of the runner 1 is usually performed by driving the drive shafts of the pair of runners 1 while synchronizing the respective drive motors, but a coupling mechanism for coupling the drive shafts of the pair of runners 1 may be provided, and the runner 1 may be rotated by driving one motor that rotates the coupling mechanism. The movable sheave 1 used in the present invention includes a draft section formed by a first sheave 11 and a second sheave 12, an introduction section 13 for introducing a twisted yarn, and an output section 14 for outputting the twisted yarn. The diameter R of the first wheel groove 11 is smaller than the diameter R of the second wheel groove 12, one end of the first wheel groove 11 extends outwards to form an introduction part 13 with the wheel groove diameter being the same as the diameter R of the first wheel groove 11, the other end of the second wheel groove 12 extends outwards to form an output part 14 with the wheel groove diameter being the same as the diameter R of the second wheel groove 12, namely, the wheel groove diameter of the introduction part is equal to the diameter R of the first wheel groove 11, and the wheel groove diameter of the output part is equal to the diameter R of the second wheel groove 12.

In this case, the two different runner wheels 1 may be used, and R, n, and m may be arranged to be the same, so that the circumferential speeds of the rotational speeds of the respective runner wheels 1 are the same.

The ratio of the diameter R of the first pulley groove 11 to the diameter R of the second pulley groove 12, the number n of pulley grooves of the introduction portion 13, and the number m of pulley grooves of the output portion 14 may be appropriately selected depending on the kind of the drawn twine, the draw ratio, the physical properties of the drawn twine, and the like, but is preferably implemented within the following ranges.

1.1≤R/r≤1.13，2≤n≤4，2≤n≤4。

The above-mentioned R/R is a parameter for determining the total draw ratio, and when R/R is less than 1.1, it is difficult to increase the draw ratio, and when R/R is more than 1.13, that is, the elongation at break exceeds 13%, the draw deformation speed is increased, the strength of the plied yarn is decreased, and as a result, burrs and yarn breakage are easily caused, and it is difficult to continue normal drawing. More preferably, the parameter (R/R) is 1.1, the diameter R of the first race is 30mm, and the diameter R of the second race is 33 mm.

The above-mentioned 2. ltoreq. n.ltoreq.4, 2. ltoreq. n.ltoreq.4 is a preferable range of the number of grooves of the inlet section 13 and the outlet section 14. The drawing of the twisted yarn is performed in the first pulley groove 11 and the second pulley groove 12, but in order to guide the twisted yarn to the first pulley groove 11 and to guide the twisted yarn to the next step after the drawing is completed in the second pulley groove 12, it is advantageous in terms of operation to provide the number of pulley grooves of the introduction portion 13 and the output portion 14, where n > 2 and m > 2, respectively. In addition, when the movable wheel 1 rotates, the folded yarn cannot be loosened, and the friction force of the wheel groove needs to drive the folded yarn to be conveyed, so that the movable wheel 1 tends to run at a high speed. In order to match the high-speed operation of the machine, the number of grooves of the inlet portion 13 and the outlet portion 14 should also be at least two. If n or m is larger than 4, the size of the apparatus increases, and conversely, there is a case where a problem in operability occurs, which is not preferable. More preferably, n is 3 and m is 3.

The plied yarn drafting and reducing device of the invention takes 2 pairs of driving wheels as 1 group and is composed of at least 1 group of driving wheels, and the rotating shaft center lines of the 2 driving wheels are generally arranged in parallel. In the case of parallel arrangement, the distance between the center lines of the rotating shafts of the two movable pulleys is L, and when L infinitely approaches 0, the effect of drafting cannot be achieved by winding the twisted yarn around one movable pulley and conveying the twisted yarn in the pulley groove of the movable pulley. Therefore, L is selected to be 10.2 cm-10.8 cm.

When a higher stretching ratio is required, a multistage continuous stretching apparatus capable of stretching at a high stretching ratio can be configured by arranging 2 to 5 of the above-described plied yarn drawing reduction apparatuses in series.

The stretching method of the present invention is performed as follows: as shown in fig. 2, the twisted yarn is introduced into the small diameter side introduction portions 13 of the pair of wheels 1, is wound several times between the introduction portions 13, is stretched by the difference in circumferential speed between the first pulley groove 11 and the second pulley groove 12 during traveling, and is wound several times between the large diameter side discharge portions 14 and then discharged.

In the stretching process of the plied yarn, the stress changes only at the moment when the plied yarn is transited from the first wheel groove 11 with small diameter to the second wheel groove 12 with large diameter, the stress is uniform in the leading-in part 13 and the leading-out part 14, short single yarns in the plied yarn combined and twisted by the single yarns with different lengths are stretched and lengthened, so that the single yarns with different lengths are as long as other long single yarns, and the single yarns are restored to the state before shrinkage, and thus the plied yarn after stretching is flat and natural and glossy. The stretching device only occupies the space between the two moving wheels 1 while stretching fully, occupies small space, does not cause the equipment to become tall and large, and has the characteristic of compactness. Further, since the runner is provided with the introduction portion 13 which is straight with the first wheel groove 11 and the output portion 14 which is straight with the second wheel groove 12, the ply yarn can be easily introduced into the runner 1 and can be easily output from the runner 1, and when the machine is operated at a high speed, the position of the ply yarn on the runner 1 is not shifted and the ply yarn is not easily pulled out of the wheel groove of the runner 1 because the introduction portion 13 and the output portion 14 are provided and the ply yarn is completely stretched at one time.

In one embodiment, the type of the plied yarn is a polyester high-strength yarn, the polyester high-strength yarn is repeatedly lapped and wound on a pair of parallel movable wheels for stretching treatment, the movable wheels are wound at a winding speed of 300 m/min, and the specifications of the movable wheels are that n is 3, m is 3, r: 30mm, R: 33mm, L: and (5) 10.5cm, and the polyester high-strength yarn passes through the plied yarn drafting and reducing device to obtain a stretched plied yarn. The breaking strength was determined from the load-elongation curve obtained using an Instron (Instron) type tensile tester. The elongation at break was determined from the load-elongation curve obtained using an Instron (Instron) type tensile tester.

The invention also provides a yarn winding forming machine using the plied yarn drafting and reducing device, as shown in fig. 4, the yarn winding forming machine comprises a feeding device, a winding device and a device arranged between the feeding device and the winding device, wherein the device is the plied yarn single filament drafting and fixing device. The folded yarn single filament drafting and fixing device is used on a yarn winding forming machine, and the folded yarn drafting and reducing device drafts and lengthens short single yarns in folded yarns formed by combining and twisting the single yarns with different lengths so as to reduce the single yarns with the same length as other long single yarns into a state before shrinkage, so that the drafted folded yarns are flat and natural and glossy. The yarn combination of the feeding device is guided into the yarn combination drafting and reducing device, is stretched by a pair of driving wheels 1 and is output to the winding device, the guiding part 13 is used for guiding the stretched yarn combination to the first wheel groove 11, and the outputting part 14 is used for guiding the stretched material to the next process package after the stretching of the first wheel groove 11 is finished. The whole yarn winding forming machine device is simple and reliable, and occupies small space.

The feeding device comprises a yarn feeding part 2 and a plurality of wire wheels 3, and the winding device comprises the wire wheels 3, a traverse arm 4 and a package bobbin 6. The yarn feeding part 2 feeds the dyed folded yarn, the folded yarn passes through a plurality of wire wheels 3 and is smoothed out in the transition process of the wire wheels 3, and the folded yarn is wound on the wire wheels 3 before being drafted and runs along with the wire wheels 3 so as not to be tightened. After the yarn is drafted, the traverse arm 4 passes over the yarn wheel 3, reciprocates the yarn in the width direction of the package while rotating around the axis, traverses the yarn, and winds the yarn around the winding bobbin 5. Preferably, the yarn winding forming machine is provided with a limiting part 6, and the limiting part 6 is used for controlling the trend of the folded yarn.

FIG. 5 is a schematic view of an embodiment of a yarn winding machine. The yarn feeding part 2, the first reel 31 and the second reel 32 are arranged at the yarn inlet side of the two driving wheels 1, and the third reel 33, the traverse arm 4 and the package bobbin 5 are arranged at the yarn outlet side of the two driving wheels 1; the device is provided with a first limiting part 61 and a second limiting part 62, wherein the first limiting part 61 is placed between the yarn feeding part 1 and the first reel 31, and the second limiting part 62 is arranged between the second reel 32 and the driving wheel 1.

Finally, it should be noted that the above embodiments are merely representative examples of the present invention. It is obvious that the invention is not limited to the above-described embodiments, but that many variations are possible. Any simple modification, equivalent change and modification made to the above embodiments in accordance with the technical spirit of the present invention should be considered to be within the scope of the present invention.

Claims

1. The utility model provides a folded yarn draft reduction device, its characterized in that includes two driving wheels (1), and two driving wheels (1) rotate in step, driving wheel (1) are including interconnect's first race (11) and second race (12), and the diameter of first race (11) is less than the diameter of second race (12), and the leading-in portion (13) that race diameter and first race (11) diameter are the same are outwards extended to first race (11) one end, and the output portion (14) that race diameter and second race (12) diameter are the same are outwards extended to second race (12) other end.

2. The plied yarn drafting and reducing device according to claim 1, wherein the inlet portion (13) and the outlet portion (14) have two or more wheel grooves.

3. The plied yarn drafting reduction device according to claim 1, characterized in that the diameter ratio of the first wheel groove (11) to the second wheel groove (12) is 10: 11.

4. The plied yarn drafting reduction device according to claim 3, characterized in that the inlet portion (13) has three wheel grooves, the outlet portion (14) has three wheel grooves, the diameter of the first wheel groove (11) is 30mm, and the diameter of the second wheel groove (12) is 33 mm.

5. A yarn winding former, which is characterized by comprising a feeding device, a winding device and a device arranged between the feeding device and the winding device, wherein the device is the plied yarn drafting reduction device of any one of claims 1 to 4.

6. Yarn winding machine according to claim 5, characterised in that the feeding device comprises a yarn feeding section (2) and several reels (3) and the winding device comprises reels (3), traverse arms (4) and package bobbins (5).

7. Yarn winding machine according to claim 6, characterised in that it is provided with a stop (6).

8. The yarn winding and forming machine according to claim 7, wherein the yarn feeding portion (2), the first pulley (31) and the second pulley (32) are provided on the yarn feeding side of the two driving wheels, and the third pulley (33), the traverse arm (4) and the package bobbin (5) are provided on the yarn discharging side of the two driving wheels; the yarn winding forming machine is provided with a first limiting part (61) and a second limiting part (62), the first limiting part (61) is placed between the yarn feeding part (2) and the first reel (31), and the second limiting part (62) is arranged between the second reel (32) and the driving wheel (1).