CN108977943B - Single yarn drafting driving device - Google Patents
Single yarn drafting driving device Download PDFInfo
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- CN108977943B CN108977943B CN201810720421.XA CN201810720421A CN108977943B CN 108977943 B CN108977943 B CN 108977943B CN 201810720421 A CN201810720421 A CN 201810720421A CN 108977943 B CN108977943 B CN 108977943B
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- drafting
- wheel
- main shaft
- draft
- gear
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
- D01H1/14—Details
- D01H1/20—Driving or stopping arrangements
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/22—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by rollers only
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
- D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
- D01H5/32—Regulating or varying draft
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
The invention provides a single yarn drafting driving device, and belongs to the technical field of textile machinery. The front drafting mechanism comprises a drafting driving mechanism, a front drafting main shaft connecting ring of a front drafting main shaft of the drafting driving mechanism and a rear drafting main shaft connecting ring of a rear drafting main shaft are slidably connected with a rotation stopping guide sliding block and a rotation stopping guide sliding groove, a front drafting groove wheel is installed on a front connecting shaft table, six front drafting groove openings are uniformly distributed in the outer side of the front drafting groove wheel, drafting grooves are formed in the outer side of a front drafting wheel, front drafting columns and the like are uniformly distributed in the front groove openings of the front drafting wheel, a drafting driving gear, a main shaft gear and a transmission gear are meshed, and a transmission chain wheel is connected with a second drafting guide wheel driving chain wheel through a transmission chain. The invention not only can realize intermittent drive to the drafting wheel, realize the drafting to the yarn in the drive state, can guarantee the drafting wheel can be rotated in a driven state even without the drive state, and the linear velocity difference between the drafting wheel and the drafting guide wheel is adjustable, the serviceability is strong.
Description
Technical Field
The invention relates to the technical field of textile machinery, in particular to a single yarn drafting driving device.
Background
The yarn is a textile, is processed into products with certain fineness by various textile fibers, is used for weaving, rope making, thread making, knitting, embroidery and the like, and is divided into staple fiber yarn, continuous filament yarn and the like. The yarn is divided into: the short fiber yarn is made of short fiber (natural short fiber or chemical fiber cut fiber) through spinning, ring spinning, free end spinning, self-twisting and the like. ② continuous filaments, such as natural silk and chemical fiber filaments, with or without twist, smooth filaments or textured filaments, and the like. And thirdly, short fiber and continuous filament combined yarn, such as polyester cotton filament core-spun yarn and the like. The yarn is formed by two or more single yarns which are combined and twisted. Many spinning devices are used in the spinning process, such as cotton gins, cotton openers, cotton cleaners, carding machines, roving frames, spinning frames, gill boxes, etc. In these spinning machines, a drawing apparatus is an important component, and drawing is a process of drawing and thinning a carded sliver to straighten fibers thereof gradually and to eliminate hooks thereof gradually while making the sliver to have a predetermined thickness gradually. The most common drafting device at present is a roller drafting mechanism, which consists of rollers and rubber rollers, wherein two pairs of adjacent rollers form a drafting zone, and each drafting zone needs to have the following three basic conditions for realizing drafting: (1) a certain pressure must be applied to the rubber roller to make the nip of the roller generate enough holding force to the fiber strand. (2) The surface linear speed of the front pair (output) of rollers is greater than that of the back pair (feeding) of rollers. (3) The nip is spaced apart by a distance (the roller center) that is slightly greater than the fiber quality length to avoid damaging the fibers. Therefore, the pressurization, the center distance and the surface speed ratio of the rollers are three important process parameters of roller drafting, but the common roller drafting mechanism has a complex structure and is poor in applicability to yarns. At present, the latest yarn drafting device realizes drafting by utilizing the linear velocity difference between a drafting wheel and a drafting guide wheel, but because the length of the drafted yarn needs to be digested and collected, intermittent driving to the drafting wheel needs to be realized, the yarn is drafted in a driving state, and the drafting wheel can be driven to rotate in a non-driving state so as to meet the yarn collecting processing requirement.
Disclosure of Invention
The invention aims to provide a single yarn drafting driving device which can realize intermittent driving of a drafting wheel, realize drafting of yarns in a driving state, ensure that the drafting wheel can rotate in a driven mode in a non-driving state, facilitate digestion and yarn collection of yarns, and has the advantages of adjustable linear speed difference between the drafting wheel and a drafting guide wheel, reasonable structure and strong applicability.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a single yarn drafting driving device comprises a frame base, a front frame, a rear frame and a drafting driving mechanism, wherein the front frame and the rear frame are fixed on the frame base, the front frame and the rear frame are parallel to each other, the drafting driving mechanism comprises a first drafting guide wheel, a second drafting guide roller, a third drafting guide wheel, a front drafting main shaft, a rear drafting main shaft, a clutch driving cylinder, a front rotary lug, a rear rotary lug, a rotation stopping guide sliding block, a front drafting wheel, a front supporting rolling ball, a front supporting ring disc groove cover plate screw, a front drafting wheel limit column screw, a front drafting wheel cover plate screw, a front guide column, a front grooved wheel, a grooved wheel locking nut, a front grooved wheel locking washer, a front synchronous gear locking washer, a main shaft gear cover plate screw, a front drafting wheel limiting column, draft drive gear, drive gear axle, gear support, draft driving motor support, transmission gear shaft, second draft guide wheel drive sprocket, transmission chain, first draft guide wheel is rotatable to be set up in the front frame, the rotatable setting of second draft guide roller is in front frame and after-frame, the second draft guide wheel concreties in the front end of second draft guide roller with the axle center, second draft guide wheel drive sprocket concreties in the rear end of second draft guide roller with the axle center, the rotatable setting of third draft guide wheel is in the front frame, first draft guide wheel, second draft guide wheel, third draft guide wheel set gradually from the right side to the left side, all be provided with the yarn guide way on first draft guide wheel, second draft guide wheel, the third draft guide wheel, the front drafting main shaft is rotatably arranged on the front frame, the front drafting main shaft can axially slide along the front frame, a front drafting main shaft connecting ring is arranged at the rear end of the front drafting main shaft, a hollow front rotary lug mounting cavity is formed at the rear end of the front drafting main shaft, the rear drafting main shaft is rotatably arranged on the rear frame, a rear drafting main shaft connecting ring is arranged at the front end of the rear drafting main shaft, a hollow rear rotary lug mounting cavity is formed at the front end of the rear drafting main shaft, the front rotary lug is mounted in the front rotary lug mounting cavity of the front drafting main shaft, the rear rotary lug is mounted in the rear rotary lug mounting cavity of the rear drafting main shaft, a rotation-stopping guide sliding block is arranged on the front drafting main shaft connecting ring, a rotation-stopping guide sliding groove is arranged on the rear drafting main shaft connecting ring, and the front drafting main shaft connecting ring of the front drafting main shaft and the rear drafting main shaft connecting ring of the rear drafting main shaft can slidably connect with each other through the rotation-stopping The front support ring disc is characterized in that the clutch driving cylinder comprises a clutch driving cylinder body and a clutch piston rod, the rear end of the clutch driving cylinder body is connected with the rear rotary lug, the front end of the clutch piston rod is connected with the front rotary lug, the front end of the front drafting main shaft is provided with a front connecting shaft platform, the front synchronous sheave is arranged on the front connecting shaft platform and locked by a front synchronous sheave locking nut, a front synchronous sheave locking nut washer is arranged between the front synchronous sheave locking nut and the front synchronous sheave, six front synchronous notches are uniformly distributed on the outer side of the front synchronous sheave, the front frame is provided with a front support ring disc groove, the front support rolling balls are uniformly and circumferentially embedded on the front side and the rear side of the front support ring disc, the front support ring disc can be rotatably arranged in the front support ring disc groove of the front frame, the front support ring disc groove cover plate is arranged on the front frame through a front support ring disc groove cover plate screw, the front supporting ring disc groove cover plate is embedded with a front supporting ring disc groove cover plate through screws, a front supporting rolling ball arranged at the front end of the front supporting ring disc is attached to the front supporting ring disc groove cover plate, a front supporting rolling ball arranged at the rear end of the front supporting ring disc is attached to a front frame, a front limiting column circular groove is arranged on the front supporting ring disc groove cover plate, a front drafting wheel limiting column and the like are uniformly distributed on the front supporting ring disc, the front end of the front drafting wheel limiting column penetrates through the front limiting column circular groove and a front drafting wheel and is connected with a front drafting wheel cover plate through a front drafting wheel limiting column screw, the front drafting wheel cover plate is arranged on the front drafting wheel through a front drafting wheel cover plate screw, the front drafting wheel limiting column screw and the front drafting wheel cover plate screw are both embedded with the front drafting wheel cover plate, and a front sliding bearing is arranged between the front drafting wheel and a front drafting main shaft, the outside of preceding draft wheel is provided with the draft groove, the front end of preceding draft wheel is provided with embedded preceding notch, the internal diameter of preceding notch is the same with the external diameter of preceding notch wheel, the quantity of preceding front pillar is six to the equipartition of waiting the circumference sets up in the preceding notch of preceding draft wheel, main shaft gear sets up the rear end of back draft main shaft with the axle center, the rotatable setting of drive gear shaft is on gear support and after-frame, gear support fixes on the frame base, draft drive gear sets up on drive gear shaft with the axle center, drive gear shaft and draft driving motor coaxial coupling, draft driving motor installs on draft driving motor support, draft driving motor support installs on gear support, the transmission gear shaft also can rotate and set up on gear support and after-frame, transmission gear and transmission sprocket all set up on the transmission gear shaft with the axle center, the main shaft gear is located draft drive gear's top, the transmission gear is located draft drive gear's below, draft drive gear and main shaft gear, transmission gear all mesh, the transmission sprocket passes through the transmission chain and is connected with second draft guide wheel drive sprocket, the reference circle diameter of transmission gear is greater than main shaft gear's reference circle diameter, the diameter of transmission sprocket is greater than the diameter of second draft guide wheel drive sprocket.
Further, a rolling bearing is arranged between the rear drafting main shaft and the rear frame.
Furthermore, a limiting shaft table is arranged on the rear drafting main shaft.
Further, the front synchronization pillar is a conical pillar.
Further, the drafting driving motor is a servo motor.
Further, the front supporting rolling ball is a metal steel ball.
Compared with the prior art, the invention has the following advantages and effects: the yarn passes through the yarn guide groove of the first drafting guide wheel, then the yarn winds around the yarn guide groove of the second drafting guide wheel for a circle, then the yarn winds around the drafting groove of the front drafting wheel for a circle, and then the yarn passes through the yarn guide groove of the third drafting guide wheel to move leftwards. The drafting is effected while the yarn passes through the second drafting guide wheel and the front drafting wheel. The drafting driving motor drives the drafting driving gear to rotate clockwise through the driving gear shaft, the drafting driving gear drives the rear drafting main shaft to rotate anticlockwise through the main shaft gear, because the front drafting main shaft connecting ring of the front drafting main shaft and the rear drafting main shaft connecting ring of the rear drafting main shaft are connected with the rotation stopping guide sliding groove in a sliding mode through the rotation stopping guide sliding block, the front drafting main shaft and the rear drafting main shaft rotate synchronously, the front grooved wheel arranged on the front drafting main shaft drives the front drafting wheel to rotate actively through the front synchronous notch and the front synchronous pillar, meanwhile, the drafting driving gear drives the second drafting guide roller to rotate actively anticlockwise through the transmission gear, the transmission chain wheel, the transmission chain and the second drafting guide wheel driving chain wheel, and the second drafting guide wheel also rotates anticlockwise along with the second drafting main shaft. The reference circle diameter of the transfer gear is larger than that of the main shaft gear, the diameter of the transfer chain wheel is larger than that of the second drafting guide wheel driving chain wheel, the revolving speed of the front drafting wheel is larger than that of the second drafting guide wheel, and yarns are drafted between the front drafting wheel and the second drafting guide wheel. The clutch piston rod of the clutch driving cylinder extends out, the front drafting main shaft slides forwards, the rear drafting main shaft is axially fixed, a front synchronous sheave and a front synchronous column which are arranged on the front drafting main shaft are separated, namely the front synchronous sheave and the front drafting wheel are separated, after separation, the front drafting wheel rotates under the action of yarn collecting tension, in the rotating process, the front drafting wheel is connected with a front supporting ring disc through a front drafting wheel limiting column, the front supporting rolling ball on the front supporting ring disc ensures the rotating stability of the front drafting wheel, the front drafting wheel is prevented from moving along the axial direction, the front supporting rolling ball is a metal steel ball, the rigidity is good, the service life is long, and the stable rotation of the front supporting ring disc is facilitated, so that the stable rotation of the front drafting wheel is ensured. The excessive length drawn out can be digested in the separation gap, so that the yarn can not be excessively accumulated on the drawing groove on the front drawing wheel, and the continuous work of the equipment is ensured. And a clutch piston rod of the clutch driving cylinder retracts, the front synchronous grooved wheel and the front drafting wheel are clamped again, and the yarn is drafted again. The rotating speed ratio of the front drafting wheel to the second drafting guide wheel is fixed, the speed difference of the linear speeds on the front drafting wheel and the second drafting guide wheel can be realized only by adjusting the rotating speed of the drafting driving motor, and the faster the rotating speed of the drafting driving motor is, the larger the drafting amount is. A rolling bearing is arranged between the rear traction main shaft and the rear frame, so that the abrasion between the rear traction main shaft and the rear frame is effectively reduced, and the continuous rotation of the rear traction main shaft is ensured. And a limiting pillow block is arranged on the rear drawing main shaft, so that the rear drawing main shaft is limited, and the rear drawing main shaft is prevented from moving. The drafting driving motor is a servo motor, the rotating speed is adjustable, the rotating angle is very accurate, and the accuracy of the rotating angle of the front synchronous grooved wheel is favorably ensured, so that the accurate control of the clutch time between the front synchronous grooved wheel and the front drafting wheel is realized, and the stability of the yarn drafting quality is improved. The invention not only can realize intermittent drive to the drafting wheel, realize the drafting of the yarn in a drive state, can ensure that the drafting wheel can be driven to rotate in a non-drive state, is beneficial to the digestion and the yarn collection of the yarn, but also has adjustable linear velocity difference between the drafting wheel and the drafting guide wheel, reasonable structure and strong applicability.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a view from direction a-a of fig. 1 of the present invention.
FIG. 3 is a view from the direction B-B of FIG. 1 according to the present invention.
Fig. 4 is a view from direction C-C of fig. 1 of the present invention.
Fig. 5 is a partial enlarged view of the present invention at E in fig. 4.
Fig. 6 is a view from direction F-F of fig. 5 of the present invention.
Fig. 7 is a view from direction D-D of fig. 1 of the present invention.
Fig. 8 is a schematic view of the connection of the preamble wheel of the present invention.
In the figure: 1. the drafting machine comprises a machine frame base, 2, a front machine frame, 3, a rear machine frame, 4, a drafting driving mechanism, 5, a first drafting guide wheel, 6, a second drafting guide wheel, 7, a second drafting guide roller, 8, a third drafting guide wheel, 9, a front drafting main shaft, 10, a rear drafting main shaft, 11, a clutch driving cylinder, 12, a front rotary support lug, 13, a rear rotary support lug, 14, a rotation stopping guide slide block, 15, a front drafting wheel, 16, a front support rolling ball, 17, a front support ring disc, 18, a front support ring disc groove cover plate, 19, a front support ring disc groove cover plate screw, 20, a front drafting wheel limit column, 21, a front drafting wheel limit column screw, 22, a front drafting wheel cover plate, 23, a front drafting wheel cover plate screw, 24, a front guide column, 25, a front guide groove wheel, 26, a front guide groove wheel locking nut, 27, a front guide groove locking nut washer, 28, a main shaft gear, 29. the drafting system comprises a drafting driving gear, 30, a driving gear shaft, 31, a gear support, 32, a drafting driving motor, 33, a drafting driving motor support, 34, a transmission gear, 35, a transmission gear shaft, 36, a second drafting guide wheel driving chain wheel, 37, a transmission chain wheel, 38, a transmission chain, 39, a yarn guide groove, 40, a front drafting main shaft connecting ring, 41, a front rotary support lug mounting cavity, 42, a rear drafting main shaft connecting ring, 43, a rear rotary support lug mounting cavity, 44, a rotation stopping guide sliding groove, 45, a clutch driving cylinder body, 46, a clutch piston rod, 47, a front connecting shaft platform, 48, a front sliding groove opening, 49, a front supporting circular ring plate groove, 50, a front limiting column circular groove, 51, a front sliding bearing, 52, a drafting groove, 53, a front sliding groove, 54, a rolling bearing and 55, a limiting shaft platform.
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.
As shown in fig. 1, 2, 3, 4, 5, 6, 7 and 8, a single yarn drafting driving device comprises a frame base 1, a front frame 2, a rear frame 3 and a drafting driving mechanism 4, wherein the front frame 2 and the rear frame 3 are fixed on the frame base 1, the front frame 2 and the rear frame 3 are parallel to each other, the drafting driving mechanism 4 comprises a first drafting guide wheel 5, a second drafting guide wheel 6, a second drafting guide roller 7, a third drafting guide wheel 8, a front drafting main shaft 9, a rear drafting main shaft 10, a clutch driving cylinder 11, a front rotary lug 12, a rear rotary lug 13, a rotation stopping guide slide block 14, a front wheel 15, a front support ring disc 16, a front support ring disc 17, a front support ring disc slot cover plate 18, a front support ring disc slot cover plate screw 19, a front drafting wheel limit column 20, a front drafting wheel limit column screw 21, a front drafting wheel limit column 21, a front drafting column 7, a front drafting guide column 9, a front drafting guide column guide roller 16, a front, The front drafting wheel cover plate 22, the front drafting wheel cover plate screw 23, the front guide column 24, the front drafting sheave 25, the front drafting sheave lock nut 26, the front drafting sheave lock nut washer 27, the main shaft gear 28, the drafting drive gear 29, the drive gear shaft 30, the gear support 31, the drafting drive motor 32, the drafting drive motor support 33, the transmission gear 34, the transmission gear shaft 35, the second drafting guide wheel drive sprocket 36, the transmission sprocket 37 and the transmission chain 38, the first drafting guide wheel 5 is rotatably arranged on the front frame 2, the second drafting guide roller 7 is rotatably arranged on the front frame 2 and the rear frame 3, the second drafting guide wheel 6 is coaxially fixed at the front end of the second drafting guide roller 7, the second drafting guide sprocket 36 is coaxially fixed at the rear end of the second drafting guide roller 7, the third drafting guide wheel 8 is rotatably arranged on the front frame 2, the first drafting guide wheel 5, the second drafting guide wheel 6 and the third drafting guide wheel 8 are sequentially arranged from right to left, yarn guide grooves 39 are formed in the first drafting guide wheel 5, the second drafting guide wheel 6 and the third drafting guide wheel 8, the front drafting main shaft 9 is rotatably arranged on the front rack 2, the front drafting main shaft 9 can slide axially along the front rack 2, a front drafting main shaft connecting ring 40 is arranged at the rear end of the front drafting main shaft 9, a hollow front rotary lug mounting cavity 41 is formed at the rear end of the front drafting main shaft 9, the rear drafting main shaft 10 is rotatably arranged on the rear rack 3, a rolling bearing 54 is arranged between the rear drafting main shaft 10 and the rear rack 3, abrasion between the rear drafting main shaft 10 and the rear rack 3 is effectively reduced, and continuous rotation of the rear drafting main shaft 10 is guaranteed. The rear drafting main shaft 10 is provided with a limiting pillow block 55, so that the rear drafting main shaft 10 is limited, and the rear drafting main shaft 10 is prevented from moving. A rear traction main shaft connecting ring 42 is arranged at the front end of the rear traction main shaft 10, a hollow rear rotary lug mounting cavity 43 is formed at the front end of the rear traction main shaft 10, the front rotary lug 12 is mounted in a front rotary lug mounting cavity 41 of the front traction main shaft 9, the rear rotary lug 13 is mounted in a rear rotary lug mounting cavity 43 of the rear traction main shaft 10, a rotation stopping guide sliding block 14 is arranged on the front traction main shaft connecting ring 40, a rotation stopping guide sliding groove 44 is arranged on the rear traction main shaft connecting ring 42, the front traction main shaft connecting ring 40 of the front traction main shaft 9 and the rear traction main shaft connecting ring 42 of the rear traction main shaft 10 are slidably connected through the rotation stopping guide sliding block 14 and the rotation stopping guide sliding groove 44, the clutch driving cylinder 11 comprises a clutch driving cylinder body 45 and a clutch piston rod 46, the rear end of the clutch driving cylinder body 45 is connected with the rear rotary lug 13, the front end of the clutch piston rod 46 is connected with the front rotary lug 12, the front end of the front drafting main shaft 9 is provided with a front connecting shaft platform 47, the front synchronous sheave 25 is mounted on the front connecting shaft platform 47 and is locked through the front synchronous sheave locking nut 26, a front synchronous sheave locking nut washer 27 is arranged between the front synchronous sheave locking nut 26 and the front synchronous sheave 25, six front synchronous notches 48 are uniformly distributed on the outer side of the front synchronous sheave 25, the front frame 2 is provided with a front supporting ring disc groove 49, the front supporting rolling balls 16 are uniformly distributed and embedded on the front side and the rear side of the front supporting ring disc 17 in an equal circumference manner, the front supporting rolling balls 16 are metal steel balls, the rigidity is good, the service life is long, and the stable rotation of the front supporting ring disc 17 is facilitated, so that the stable rotation of the front drafting wheel 15 is. The front supporting ring disc 17 can be rotatably arranged in a front supporting ring disc groove 49 of the front frame 2, the front supporting ring disc groove cover plate 18 is arranged on the front frame 2 through a front supporting ring disc groove cover plate screw 19, the front supporting ring disc groove cover plate screw 19 is embedded into the front supporting ring disc groove cover plate 18, a front supporting rolling ball 16 arranged at the front end of the front supporting ring disc 17 is attached to the front supporting ring disc groove cover plate 18, a front supporting rolling ball 16 arranged at the rear end of the front supporting ring disc 17 is attached to the front frame 2, a front limiting column ring groove 50 is arranged on the front supporting ring disc groove cover plate 18, the front drafting wheel limiting columns 20 are uniformly arranged on the front supporting ring disc 17 in an equal circumference mode, the front end of the front drafting wheel limiting column 20 penetrates through the front limiting column ring groove 50 and the front drafting wheel 15 and is connected with the front drafting wheel cover plate 22 through a front drafting limiting column screw 21, the front drafting wheel cover plate 22 is arranged on the front drafting wheel 15 through a front drafting wheel cover plate screw 23, the front drafting wheel cover plate 22 is embedded in the front drafting wheel limiting column screw 21 and the front drafting wheel cover plate screw 23, a front sliding bearing 51 is arranged between the front drafting wheel 15 and the front drafting main shaft 9, a drafting groove 52 is arranged outside the front drafting wheel 15, the front end of the front drafting wheel 15 is provided with an embedded front notch 53, the inner diameter of the front notch 53 is the same as the outer diameter of the front grooved wheel 25, the number of the front pillars 24 is six, and are uniformly distributed in the front notches 53 of the front drafting wheel 15 in the same circumference, the front synchronous column 24 is a conical column, in the process of retracting the clutch driving cylinder 11, the conical column structure plays a good guiding role, so that the front-synchronous notch 48 on the front-synchronous sheave 25 is favorably and perfectly clamped with the front-synchronous column 24, and synchronous rotation is realized. Main shaft gear 28 sets up with the axle center at the rear end of draft main shaft 10 behind, drive gear axle 30 is rotatable to be set up on gear support 31 and rear frame 3, gear support 31 is fixed on frame base 1, draft drive gear 29 sets up on drive gear axle 30 with the axle center, drive gear axle 30 and draft driving motor 32 coaxial coupling, draft driving motor 32 is installed on draft driving motor support 33, draft driving motor support 33 is installed on gear support 31, transmission gear axle 35 also can rotate and set up on gear support 31 and rear frame 3, transmission gear 34 and transmission sprocket 37 all set up on transmission gear axle 35 with the axle center, main shaft gear 28 is located the top of draft drive gear 29, transmission gear 34 is located the below of draft drive gear 29, draft drive gear 29 and main shaft gear 28, The transfer gear 34 is engaged, the transfer sprocket 37 is connected with the second draft guide wheel driving sprocket 36 through the transfer chain 38, the pitch circle diameter of the transfer gear 34 is larger than that of the main shaft gear 28, and the diameter of the transfer sprocket 37 is larger than that of the second draft guide wheel driving sprocket 36. The drafting driving motor 32 is a servo motor, the rotating speed is adjustable, the rotating angle is very accurate, and the accuracy of the rotating angle of the front synchronous sheave 25 is favorably ensured, so that the accurate control of the clutch time between the front synchronous sheave 25 and the front drafting wheel 15 is realized, and the stability of the drafting quality of the yarn is improved.
Through the technical scheme, when the single yarn drafting driving device is used, firstly, the yarn passes through the yarn guide groove 39 of the first drafting guide wheel 5, then the yarn winds around the yarn guide groove 39 of the second drafting guide wheel 6 for one circle, then the yarn winds around the drafting groove 52 of the front drafting wheel 15 for one circle, and then the yarn passes through the yarn guide groove 39 of the third drafting guide wheel 8 to move leftwards. The drafting is effected while the yarn passes through the second drafting guide wheel 6 and the front drafting wheel 15. The drafting driving motor 32 drives the drafting driving gear 29 to rotate clockwise through the driving gear shaft 30, the drafting driving gear 29 drives the rear drafting main shaft 10 to rotate anticlockwise through the main shaft gear 28, because the front drafting main shaft connecting ring 40 of the front drafting main shaft 9 and the rear drafting main shaft connecting ring 42 of the rear drafting main shaft 10 are slidably connected through the rotation stopping guide sliding block 14 and the rotation stopping guide sliding groove 44, therefore, the front drafting main shaft 9 and the rear drafting main shaft 10 rotate synchronously, the front grooved wheel 25 arranged on the front drafting main shaft 9 drives the front drafting wheel 15 to actively rotate through the front notch 48 and the front pillar 24, meanwhile, the draft driving gear 29 drives the second draft guide roller 7 to rotate counterclockwise actively through the transmission gear 34, the transmission chain wheel 37, the transmission chain 38 and the second draft guide wheel driving chain wheel 36, and the second draft guide wheel 6 also rotates counterclockwise accordingly. The reference circle diameter of the transmission gear 34 is larger than that of the main shaft gear 28, the diameter of the transmission chain wheel 37 is larger than that of the second drafting guide wheel driving chain wheel 36, the revolving speed of the front drafting wheel 15 is larger than that of the second drafting guide wheel 6, and the yarn is drafted between the front drafting wheel 15 and the second drafting guide wheel 6. The clutch piston rod 46 of the clutch driving cylinder 11 extends out, the front drafting main shaft 9 slides forwards, the rear drafting main shaft 10 is axially fixed, the front synchronous sheave 25 and the front synchronous column 24 which are arranged on the front drafting main shaft 9 are separated, namely the front synchronous sheave 25 and the front drafting wheel 15 are separated, after separation, the front drafting wheel 15 rotates under the action of yarn-collecting tension, in the rotation process, the front drafting wheel 15 is connected with the front supporting ring disc 17 through the front drafting wheel limit column 20, the front supporting rolling ball 16 on the front supporting ring disc 17 ensures the rotation stability of the front drafting wheel 15, the front drafting wheel 15 is prevented from axially moving, the excessive length of the drafted yarn can be digested in the separation gap, the yarn is prevented from excessively accumulating on the drafting groove 52 on the front drafting wheel 15, and the continuous operation of the equipment is ensured. The clutch piston rod 46 of the clutch driving cylinder 11 is retracted to engage the front pulley 25 with the front draft wheel 15 again, thereby drafting the yarn again. The ratio of the rotating speed of the front drafting wheel 15 to the rotating speed of the second drafting guide wheel 6 is fixed, and the speed difference of the linear speeds of the front drafting wheel 15 and the second drafting guide wheel 6 can be realized only by adjusting the rotating speed of the drafting drive motor 32, and the faster the rotating speed of the drafting drive motor 32 is, the larger the drafting amount is. The invention not only can realize intermittent drive to the drafting wheel, realize the drafting of the yarn in a drive state, can ensure that the drafting wheel can be driven to rotate in a non-drive state, is beneficial to the digestion and the yarn collection of the yarn, but also has adjustable linear velocity difference between the drafting wheel and the drafting guide wheel, reasonable structure and strong applicability.
The above description of the present invention is intended to be illustrative. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (6)
1. A single yarn drawing drive, characterized by: the front drafting mechanism comprises a first drafting guide wheel, a second drafting guide roller, a third drafting guide wheel, a front drafting main shaft, a rear drafting main shaft, a clutch driving cylinder, a front rotary lug, a rear rotary lug, a rotation stopping guide slider, a front drafting wheel, a front support rolling ball, a front support circular disc groove cover plate screw, a front drafting wheel limit column screw, a front drafting wheel cover plate screw, a front guide column, a front guide sheave, a front synchronous sheave locking nut washer, a main shaft gear, a drafting driving gear, a driving gear shaft, a front drafting wheel limiting column, a front drafting wheel limit column screw, a front drafting wheel cover plate screw, a front synchronous sheave locking nut washer, a main shaft gear, a drafting driving gear, a driving gear shaft, a front drafting wheel and a, Gear support, draft driving motor support, transmission gear axle, second draft guide wheel drive sprocket, transmission chain, first draft guide wheel is rotatable to be set up in the front frame, the rotatable setting of second draft guide roller is in front frame and after-frame, the second draft guide wheel concreties in the front end of second draft guide roller with the axle center, second draft guide wheel drive sprocket concreties in the rear end of second draft guide roller with the axle center, the rotatable setting of third draft guide wheel is in the front frame, first draft guide wheel, second draft guide wheel, third draft guide wheel set gradually from the right side to the left side, all be provided with the yarn guide way on first draft guide wheel, second draft guide wheel, the third draft guide wheel, the rotatable setting of preceding draft main shaft is in the front frame, the front drafting main shaft can axially slide along the front frame, a front drafting main shaft connecting ring is arranged at the rear end of the front drafting main shaft, a hollow front rotary lug mounting cavity is formed at the rear end of the front drafting main shaft, the rear drafting main shaft is rotatably arranged on the rear frame, a rear drafting main shaft connecting ring is arranged at the front end of the rear drafting main shaft, a hollow rear rotary lug mounting cavity is formed at the front end of the rear drafting main shaft, the front rotary lug is mounted in the front rotary lug mounting cavity of the front drafting main shaft, the rear rotary lug is mounted in the rear rotary lug mounting cavity of the rear drafting main shaft, a rotation stopping guide sliding block is arranged on the front drafting main shaft connecting ring, a rotation stopping guide sliding groove is arranged on the rear drafting main shaft connecting ring, and the front drafting main shaft connecting ring of the front drafting main shaft and the rear drafting main shaft connecting ring of the rear drafting main shaft are slidably connected through the rotation stopping guide sliding block and the rotation stopping guide sliding, the clutch driving cylinder comprises a clutch driving cylinder body and a clutch piston rod, the rear end of the clutch driving cylinder body is connected with a rear rotary lug, the front end of the clutch piston rod is connected with a front rotary lug, the front end of the front drafting main shaft is provided with a front connecting shaft platform, a front synchronous sheave is installed on the front connecting shaft platform and locked by a front synchronous sheave locking nut, a front synchronous sheave locking nut washer is arranged between the front synchronous sheave locking nut and the front synchronous sheave, six front synchronous notches are uniformly distributed on the outer side of the front synchronous sheave, a front supporting ring disc groove is arranged on the front frame, front supporting rolling balls are uniformly distributed and embedded on the front side and the rear side of a front supporting ring disc, the front supporting ring disc can be rotatably arranged in the front supporting ring disc groove of the front frame, the front supporting ring disc groove cover plate is installed on the front frame through a front supporting ring disc groove cover plate screw, the front supporting ring disc groove cover plate is embedded with a front supporting ring disc groove cover plate through screws, a front supporting rolling ball arranged at the front end of the front supporting ring disc is attached to the front supporting ring disc groove cover plate, a front supporting rolling ball arranged at the rear end of the front supporting ring disc is attached to a front frame, a front limiting column circular groove is arranged on the front supporting ring disc groove cover plate, a front drafting wheel limiting column and the like are uniformly distributed on the front supporting ring disc, the front end of the front drafting wheel limiting column penetrates through the front limiting column circular groove and a front drafting wheel and is connected with a front drafting wheel cover plate through a front drafting wheel limiting column screw, the front drafting wheel cover plate is arranged on the front drafting wheel through a front drafting wheel cover plate screw, the front drafting wheel limiting column screw and the front drafting wheel cover plate screw are both embedded with the front drafting wheel cover plate, and a front sliding bearing is arranged between the front drafting wheel and a front drafting main shaft, the outside of preceding draft wheel is provided with the draft groove, the front end of preceding draft wheel is provided with embedded preceding notch, the internal diameter of preceding notch is the same with the external diameter of preceding notch wheel, the quantity of preceding front pillar is six to the equipartition of waiting the circumference sets up in the preceding notch of preceding draft wheel, main shaft gear sets up the rear end of back draft main shaft with the axle center, the rotatable setting of drive gear shaft is on gear support and after-frame, gear support fixes on the frame base, draft drive gear sets up on drive gear shaft with the axle center, drive gear shaft and draft driving motor coaxial coupling, draft driving motor installs on draft driving motor support, draft driving motor support installs on gear support, the transmission gear shaft also can rotate and set up on gear support and after-frame, transmission gear and transmission sprocket all set up on the transmission gear shaft with the axle center, the main shaft gear is located draft drive gear's top, the transmission gear is located draft drive gear's below, draft drive gear and main shaft gear, transmission gear all mesh, the transmission sprocket passes through the transmission chain and is connected with second draft guide wheel drive sprocket, the reference circle diameter of transmission gear is greater than main shaft gear's reference circle diameter, the diameter of transmission sprocket is greater than the diameter of second draft guide wheel drive sprocket.
2. A single yarn drawing drive as claimed in claim 1, wherein: and a rolling bearing is arranged between the rear traction main shaft and the rear frame.
3. A single yarn drawing drive as claimed in claim 1, wherein: and a limiting pillow block is arranged on the rear drafting main shaft.
4. A single yarn drawing drive as claimed in claim 1, wherein: the front synchronous column is a conical column.
5. A single yarn drawing drive as claimed in claim 1, wherein: the drafting driving motor is a servo motor.
6. A single yarn drawing drive as claimed in claim 1, wherein: the front supporting rolling ball is a metal steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810720421.XA CN108977943B (en) | 2018-07-03 | 2018-07-03 | Single yarn drafting driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810720421.XA CN108977943B (en) | 2018-07-03 | 2018-07-03 | Single yarn drafting driving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108977943A CN108977943A (en) | 2018-12-11 |
| CN108977943B true CN108977943B (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810720421.XA Active CN108977943B (en) | 2018-07-03 | 2018-07-03 | Single yarn drafting driving device |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1156192A (en) * | 1995-10-11 | 1997-08-06 | 里特机械公司 | Spinning frame with independent drafting roller driving device |
| DE102011111725A1 (en) * | 2011-08-26 | 2013-02-28 | Oerlikon Textile Gmbh & Co. Kg | Textile machine with a variety of jobs |
| CN202643990U (en) * | 2012-06-10 | 2013-01-02 | 常州市同和纺织机械制造有限公司 | Transmission gear of wool spinning frame |
| CN205347647U (en) * | 2016-03-04 | 2016-06-29 | 福建浔兴拉链科技股份有限公司 | Improve nylon yarn draft machine of security |
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2018
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| CN108977943A (en) | 2018-12-11 |
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Effective date of registration: 20201230 Address after: 314502 south side of GONGMAO Avenue, maoshicheng Industrial Park, Puyuan Town, Tongxiang City, Jiaxing City, Zhejiang Province Applicant after: Tongxiang Ruilong Xinte Textile Co.,Ltd. Address before: 316000 No.39, saojitou Road, Shengshan Town, Shengsi County, Zhoushan City, Zhejiang Province Applicant before: Wang Yalian |
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