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

Abstract

The invention provides a drafting and restoring device for a pair of strands, comprising two synchronously rotating moving wheels, the two moving wheels include an inner moving wheel and an outer moving wheel, the inner moving wheel and the outer moving wheel are both provided with a wheel groove, and the surface of the wheel groove is a frosted surface , the twisted wire is input from the outer driving wheel and output from the inner driving wheel. The diameter of the wheel groove of the outer driving wheel is smaller than the diameter 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. During the stretching process of the ply yarn, the force change is only at the moment of transition from the small-diameter outer driving wheel to the large-diameter inner driving wheel, and the lead-in part and the lead-out part are uniformly stressed, which can combine the single yarns with different lengths to form a ply yarn. It can be stretched and restored to a plied yarn with the same length of single yarn, and the yarn winding forming machine is simple and reliable, and takes up little space.

Description

A plied yarn drafting and restoring device and a yarn winding forming machine using the same

technical field

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

Background technique

In the production of blended fabrics, interwoven fabrics and fancy yarns, it is necessary to use a dyeing box to physically or chemically combine the dye liquor with the fibers, and dye the yarns first, so as to ensure that the fabrics not only have uniform color and luster, but also have good color fastness. Putting the yarn into the dyeing box for dip dyeing, and heating it during dip dyeing, heating the dye liquor properly is beneficial to improve the adhesion of the dye liquor. Yarn shrinks after dyeing, commonly known as shrinkage. Yarn is also called single yarn, thread is the product of two or more single yarns combined and twisted, thread is also called plied thread. The shrinkage causes the length of each single yarn to be different after the single yarn is combined and twisted, and the thread is easily broken during sewing, and the folds are caused when the yarn shrinks, and the appearance is dull, resulting in unsightly clothing and leather goods.

The invention patent with the application number of 201610671594.8 discloses a yarn winding machine, which includes a frame, a small yarn bobbin and a large yarn bobbin. The frame is provided with a yarn guide plate, a yarn return roller, a yarn guide and a yarn guide along the yarn feeding direction in sequence. The yarn sliver and several transmission rollers, a yarn guide device for adjusting the yarn spacing is also arranged between the drive roller and the large yarn spool, and a yarn collecting roller is also arranged between the yarn guide device and the large yarn spool. This invention uses large and small bobbins with different diameters. Since various devices for transmission, guidance and adjustment are arranged between the large and small bobbins, the yarn wound on the large bobbin cannot be judged. Compare whether the small bobbin is stretched.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides a plied yarn drafting and restoring device and a yarn winding forming machine using the same, which can draft and restore single yarns of different lengths in a plied yarn into single yarns of the same length.

The technical solution is as follows:

A plied wire drafting and restoring device comprises two moving wheels, the two moving wheels rotate synchronously, the moving wheels comprise a first wheel groove and a second wheel groove connected with each other, the diameter of the first wheel groove is smaller than the diameter of the second wheel groove One end of the first wheel slot extends outwards from an introduction portion with the same diameter as the first wheel slot, and the other end of the second wheel slot extends outward from an output portion with the same wheel slot diameter as the second wheel slot.

The two moving wheels rotate synchronously with the same angular velocity. Since the diameter of the second wheel groove is larger than the diameter of the first wheel groove, the linear speed of the second wheel groove is greater than that of the first wheel groove. The frictional force generated on the surface drives the twisted wire to pass through the first wheel groove first, and then through the second wheel groove. The circumferential speed difference on the surface of the wheel groove causes the twisted wire on the second wheel groove to elastically elongate. The thread that needs to be stretched is a plied thread. The plied thread is composed of three single yarns of uneven length and twisted together. The single yarn is stretched after being drafted, so that it is the same length as other long single yarns, and is restored to the state before shrinking, so that the plied yarn after being drafted appears smooth, natural and shiny. The twisted wire is wound on the moving wheel, and the first wheel groove and the second wheel groove with different diameters are set, which can be stretched at one time, and it only takes up the space between the two moving wheels when it is fully stretched. It occupies a small space, does not make the device tall, and has a compact feature. In addition, during the entire stretching process of the twisted wire, the force change is only at the moment of transition from the first wheel groove of small diameter to the second wheel groove of large diameter, and the force is uniform in the introduction part and the output part. The lead-in part with the one-wheel grooves being straight with each other and the output part with the second-wheel grooves being straight with each other are easy to guide the twisted wire to the moving pulley and output from the moving pulley. The output part is fully stretched at one time, the position of the twisted wire on the moving wheel will not be shifted, and it is not easy to cause the twisted yarn to be pulled away from the wheel groove of the moving wheel.

Further, the introduction part and the output part have two or more wheel grooves. The premise of stretching is to be taut, then when the moving wheel of the present invention rotates, the plying wire cannot be loosened, and the frictional force of the wheel groove needs to drive the plying wire to convey, so the moving wheel is bound to run at a higher speed. In order to cooperate with the high-speed operation of the machine, the number of wheel grooves in the introduction part and the output part should be at least two.

Further, the ratio of the diameter of the first wheel groove to the diameter of the second wheel groove is 10:11. Set the diameter ratio of the first round groove and the second round groove, so that each single yarn of the plied thread is fully stretched to the maximum extent, but no wire breakage occurs.

Further, the introduction part has three wheel grooves, the output part has three wheel grooves, the diameter of the first wheel groove is 30 mm, 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, and the device is the plied wire drafting and reducing device.

The above-mentioned plied thread drafting and reducing device is used in a yarn winding forming machine, and the plied thread drafting and reducing device is arranged between the feeding device and the winding device. The short single yarn in the twisted plied yarn is drawn, and the short single yarn is as long as the other long single yarns after being stretched, and it is restored to the state before shrinkage. In this way, the plied strands after drafting will appear smooth, natural and shiny. The twisted wire of the feeding device is introduced into the above-mentioned moving wheel, and after being stretched by a pair of moving rollers, it is output to the winding device. After the groove is finished stretching, the stretched material is guided to the next process package. In the case of high-speed operation of the yarn winding forming machine, due to the introduction of the introduction part and the output part, and the use of one-time full stretching, the position of the plied thread on the moving wheel does not shift, and it is not easy to cause the plied thread to be pulled away from the moving wheel. The condition of the wheel grooves. The ply yarn draft reduction device does not make the yarn winding machine tall and has a compact feature. The whole yarn winding forming machine is simple and reliable.

Further, the feeding device includes a yarn feeding part and a plurality of bobbins, and the winding device includes a bobbin, a traversing arm and a winding bobbin. The yarn feeding section feeds the dyed plied yarn, the plied yarn passes through several spools, and is smoothed during the transition of the spool. As for tightness. After the plied wire is drawn, and then transitioned by the wire wheel, the traverse arm reciprocates the plied wire along the width direction of the package rotating around the axis, so that the plied wire traverses, and the plied wire is wound on the winding bobbin.

Further, the yarn winding forming machine is provided with a limiting part, and the limiting part is used to control the direction of the plied yarn.

Further, a yarn feeding part, a first spool and a second spool are arranged on the incoming side of the two moving wheels, and a third spool, a traverse arm and a bobbin are arranged on the outgoing side of the two moving pulleys; There are a first limiting part and a second limiting part, the first limiting part is placed between the yarn feeding part and the first thread wheel, and the second limiting part is arranged between the second thread wheel and the moving pulley. Place the limiter at the appropriate position to control the direction of the twisted wire.

Compared with the prior art, the beneficial effect of the technical solution is that the present invention has a pair of moving wheels, and the twisted wire is wound on the moving wheels, and the first wheel groove and the second wheel groove with different diameters are arranged. The difference in peripheral speed can stretch the plied wire at one time. During the stretching process of the plied wire, the force change is only at the moment of transition from the small-diameter first wheel groove to the large-diameter second wheel groove, at the introduction part. The force is evenly applied to the output part, and the short single yarn in the twisted plied yarn is drawn and stretched so that it is the same length as other long single yarns, and is restored to the state before shrinking. The drawn strands appear smooth, natural and shiny. While fully stretched, it only occupies the space between the two moving wheels, and the space occupied is small, the device does not become tall, and it has the characteristics of compactness. In addition, the above-mentioned moving wheel is provided with an introduction portion that is straight with the first wheel groove and an output portion that is straight with the second wheel groove, so that the twisted wire can be easily introduced to the moving wheel and easily output from the moving wheel. In the case of high-speed operation of the machine , Because the introduction part and the output part are provided, and the one-time complete stretching is adopted, the position of the plying wire on the moving wheel will not be shifted, and it is not easy to cause the plying wire to be pulled away from the wheel groove of the moving wheel.

The above-mentioned ply yarn drafting and reducing device is used on a yarn winding forming machine, a plying yarn drafting and reducing device is arranged between the feeding device and the winding device, and the plying yarn drafting and reducing device combines the single yarns with different lengths. The short single yarn in the twisted plied yarn is stretched after being drawn, so that it is the same length as other long single yarns, and is restored to the state before shrinkage, so that the drawn plied yarn appears smooth, natural and shiny. The plied wire of the feeding device is introduced into the above-mentioned plied wire drafting and reducing device, and after being stretched by a pair of moving wheels, it is output to the winding device. It is used to guide the stretched material to the next process package after the first round of grooves finishes stretching. In the case of the high-speed operation of the winding forming machine, due to the introduction part and the output part, and the one-time complete stretching, the position of the plying wire on the moving wheel will not be shifted, and it is not easy to cause the plying wire to be pulled away from the wheel of the moving wheel. slot situation. The feeding device and the winding device are respectively provided with a number of spools and a limiter. The spool is used to smooth the plied yarn, so that the plied yarn will not be stretched before being drawn, and the limiter is used to control the direction of the plied yarn. The plied wire drafting reduction device does not make the winding forming machine tall, and the winding forming machine has a compact feature. The whole yarn winding forming machine is simple and reliable.

Description of drawings

FIG. 1 is a schematic structural diagram of a moving wheel of the plied wire drafting and reducing device according to the present invention.

FIG. 2 is a schematic diagram of the use state of the device for drawing and reducing the plied yarn according to the present invention.

FIG. 3 is a simplified diagram of the device for drawing and reducing the plied wire according to the present invention.

FIG. 4 is a schematic structural diagram of the yarn winding forming machine according to the present invention.

FIG. 5 is a schematic structural diagram of an embodiment of the yarn winding forming machine according to the present invention.

The figure includes the moving pulley 1, the first pulley groove 11, the second pulley groove 12, the introduction part 13, the output part 14, the yarn feeding part 2, the thread pulley 3, the first thread pulley 31, the second thread pulley 32, and the third thread pulley 33 , traverse arm 4 , bobbin 5 , limiter 6 , first limiter 61 , second limiter 62 .

Detailed ways

The present invention will be further described below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

The present invention is characterized in that the plied yarn that needs to be stretched is directly introduced to a pair of moving pulleys 1, pulled by a wire pulley and then introduced to a pair of moving pulleys 1, or introduced to a pair of moving pulleys 1 after passing through the yarn feeding section 2, Stretching is performed during the travel of the moving wheel 1 . FIG. 1 shows one form of the driving wheel used in the present invention. A single fiber drafting and fixing device of the present invention is composed of a pair of moving wheels with the moving wheel 1 shown in FIG. 1 as a group. In general, from the viewpoint of adjusting the speed, it is preferable to configure the pair of movable wheels 1 to have the same size and to be able to rotate in the same direction and at the same speed. For the drive for rotating the pair of movable wheels 1, the rotation of the movable wheels 1 is usually performed by driving the respective drive shafts of the pair of movable wheels 1 while synchronizing the respective drive motors. The connection mechanism of the drive shaft of the movable wheel 1 is driven by a single motor that rotates the connection mechanism, so that the movable wheel 1 is rotated. The moving pulley 1 used in the present invention includes a drafting portion formed by the first pulley groove 11 and the second pulley groove 12 , an introduction portion 13 for introducing the twisted yarn, and an output portion 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 outwardly from an introduction portion 13 with the same diameter r of the first wheel groove 11 , and the other end of the second wheel groove 12 extends outward. The output part 14 with the same wheel groove diameter as the second wheel groove 12 diameter R extends outward, that is to say, 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 second wheel groove. 12 Diameter R.

Two different rotors 1 may be used. In this case, r, R, n, and m may be set to be the same, and the rotational speeds of the rotors 1 may have the same peripheral speed.

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 part 13, and the number m of pulley grooves of the output part 14 can be determined according to the type of the stretched stranded wire, the stretching ratio, The physical properties and the like of the plied yarn after stretching are appropriately selected, but it is preferably implemented within the ranges shown below.

1.1≤R/r≤1.13, 2≤n≤4, 2≤n≤4.

The above R/r is a parameter that determines the total stretching ratio. When R/r is less than 1.1, it is difficult to increase the stretching ratio. In addition, if R/r is higher than 1.13, that is, the elongation at break exceeds 13%, the stretching The deformation speed is accelerated, and the strength of the plying wire is reduced. As a result, it is easy to cause burrs and broken wires, and it is difficult to continue normal stretching. More preferably, the parameter (R/r) is R/r=1.1, the diameter r of the first wheel groove is 30 mm, and the diameter R of the second wheel groove is 33 mm.

The above-mentioned 2≤n≤4 and 2≤n≤4 are preferable ranges of the number of grooves of the introduction part 13 and the output part 14 . The drawing of the twisted yarn is performed in the first roller groove 11 and the second roller groove 12, but in order to guide the twisted thread to the first roller groove 11 and to guide the twisted thread to the second roller groove 12 after the drawing is completed. In the next process, it is advantageous in operation to set the number of wheel grooves of the introduction part 13 and the output part 14 with n>2 and m>2 respectively. In addition, when the moving wheel 1 of the present invention rotates, the twisted wire cannot be loosened, and the frictional force of the wheel groove needs to drive the twisted yarn to convey, so the moving wheel 1 is bound to run at a higher speed. In order to match the high-speed operation of the machine, the number of wheel grooves of the introduction part 13 and the output part 14 should also be at least two. If n or m is larger than 4, the size of the device increases, and the operability may be inconvenient. Therefore, it is not preferable. More preferably, n=3 and m=3.

In the present invention, the device for drawing and reducing the plied strands is composed of at least one set of two pairs of moving wheels, and the centerlines of the rotating shafts of the two moving wheels are usually arranged parallel to each other. In the case of parallel arrangement, the distance between the center lines of the rotating shafts of the two moving wheels is L, and when L is infinitely close to 0, it is equivalent to wrapping the stranded wire on a moving wheel, and the groove of the moving wheel is conveyed, then It cannot achieve the effect of drafting. When L=∞, the size of the equipment increases, but sometimes it will cause problems in operability. Moreover, the plied wire is likely to cause burrs and broken wires in the infinite distance conveying, and it is difficult to continue normal pulling. stretch. Therefore, L is selected within the following range: 10.2cm≤L≤10.8cm.

When stretching at a higher ratio is required, a multi-stage continuous stretching device capable of stretching at a high stretching ratio can also be configured by arranging 2 to 5 units of the above-mentioned plied wire draft reduction devices in series.

The stretching method of the present invention is carried out as follows: as shown in FIG. 2 , the twisted wire is introduced into the introduction parts 13 on the small diameter side of the pair of movable pulleys 1 , and is wound between the introduction parts 13 several times. The first pulley groove 11 and the second pulley groove 12 are stretched by the difference in the peripheral speed, and are output after being wound several times between the output parts 14 on the large diameter side.

During the stretching process of the twisted wire, the force change is only at the moment of transition from the small-diameter first wheel groove 11 to the large-diameter second wheel groove 12, and the force on the introduction part 13 and the output part 14 is uniform, and the length will be uneven. The short single yarn in the single yarn combined with twisted plied yarn is drawn and stretched, so that it is as long as other long single yarns and restored to the state before shrinkage, so that the drawn plied yarn appears smooth and natural Shiny. While fully stretched, only the space between the two moving wheels 1 is occupied, the occupied space is small, the device does not become tall, and the device is compact. In addition, the above-mentioned moving pulley is provided with an introduction portion 13 that is straight with the first pulley groove 11, and an output portion 14 that is straight with the second pulley groove 12, so that the twisted wire can be easily introduced to the moving pulley 1 and easily output from the moving pulley 1. When the machine is running at high speed, since the introduction part 13 and the output part 14 are provided, and one-time complete stretching is adopted, the position of the twisted wire on the moving wheel 1 will not shift, and it is not easy to cause the twisted yarn to be pulled away from the wheel of the moving wheel 1. slot situation.

In one embodiment, the type of the plied thread is polyester high-strength thread, and the polyester high-strength thread is repeatedly wound on a pair of parallel moving wheels for stretching treatment. The specifications are n=3, m=3, r: 30mm, R: 33mm, L: 10.5cm, and the polyester high-strength thread obtains a stretched plied yarn through the plied yarn drawing and reduction device. The breaking strength was obtained from the load-elongation curve obtained by using an Instron type tensile tester. The elongation at break was determined from a load-elongation curve obtained using an Instron type tensile tester.

The present invention also provides a yarn winding forming machine using the plied yarn drafting and reducing device, as shown in FIG. The device between the winding device and the winding device, the device is the above-mentioned single wire drawing and fixing device of the plied wire. Using the above-mentioned single-filament drafting and fixing device for a plied yarn on a yarn winding and forming machine, the plied yarn drafting and reducing device will draw the short single yarn in the twisted plied yarn by combining and twisting the single yarn with uneven length and then stretch it. It is long, so that it is as long as other long single yarns, and it is restored to the state before shrinking, so that the plied yarns after drafting appear smooth, natural and shiny. The twisted yarn from the feeding device is introduced into the aforementioned twisted yarn drafting and reduction device, and after being stretched by a pair of moving wheels 1, it is output to the winding device. The introduction part 13 is used to guide the stretched twisted yarn to the first wheel groove 11 , the output part 14 is used to guide the stretched material to the next process package after the first round groove 11 finishes stretching. The whole yarn winding forming machine is simple and reliable, and takes up little space.

The feeding device includes a yarn feeding part 2 and a plurality of bobbins 3 , and the winding device includes a bobbin 3 , a traverse arm 4 and a bobbin 6 . The yarn feeding part 2 feeds the dyed plied yarn, the plied yarn passes through several spools 3, is smoothed during the transition process of the spool 3, and is wrapped around the spool 3 before being drawn to run with the spool 3. It also keeps the twisted strands from being tight. After the twisted yarn is drawn, the warp wheel 3 transitions, and the traverse arm 4 reciprocates the twisted yarn along the width direction of the package rotating around the axis, so that the twisted yarn traverses, and the twisted yarn is wound on the winding bobbin 5. superior. Preferably, a limiting portion 6 is provided on the yarn winding forming machine, and the limiting portion 6 is used to control the direction of the plied yarn.

FIG. 5 is a schematic structural diagram of an embodiment of a yarn winding forming machine. The thread feeder 2, the first thread roller 31 and the second thread roller 32 are arranged on the thread inlet side of the two moving rollers 1, and the third thread roller 33, the traverse arm 4 and the bobbin 5 are arranged at the thread outlet side of the two moving rollers 1 ; The device is provided with a first limiting portion 61 and a second limiting portion 62, the first limiting portion 61 is placed between the yarn feeding portion 1 and the first spool 31, and the second limiting portion 62 is provided on the Between the second wire wheel 32 and the moving wheel 1 .

Finally, it should be pointed out that the above embodiments are only representative examples of the present invention. Obviously, the present invention is not limited to the above-mentioned embodiments, and many modifications are possible. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention shall be considered to belong to the protection scope of the present invention.

Claims (8)

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).

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