CN210085671U - Polyester-cotton composite filament drafting and winding device - Google Patents

Polyester-cotton composite filament drafting and winding device Download PDF

Info

Publication number
CN210085671U
CN210085671U CN201920888061.4U CN201920888061U CN210085671U CN 210085671 U CN210085671 U CN 210085671U CN 201920888061 U CN201920888061 U CN 201920888061U CN 210085671 U CN210085671 U CN 210085671U
Authority
CN
China
Prior art keywords
polyester
roller
heating cabinet
dust
cotton composite
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201920888061.4U
Other languages
Chinese (zh)
Inventor
张声诚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Yongneng New Material Technology Co Ltd
Original Assignee
Jiangsu Yongneng New Material Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Yongneng New Material Technology Co Ltd filed Critical Jiangsu Yongneng New Material Technology Co Ltd
Priority to CN201920888061.4U priority Critical patent/CN210085671U/en
Application granted granted Critical
Publication of CN210085671U publication Critical patent/CN210085671U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The utility model discloses a polyester-cotton composite filament drafting is around package is put, the on-line screen storage device comprises a base, be equipped with the pillar on the base, and install the footstock on the pillar top, the base top is equipped with the heating cabinet, the inside multiunit hot pressing roller that is equipped with of heating cabinet, and be equipped with the stretching roller between the hot pressing roller, stretching roller both ends swing joint has the roller axle sleeve, on the roller sleeve respectively swing joint have a connecting rod and No. two connecting rods, the inside top of heating cabinet is equipped with a lead screw and No. two lead screws. The utility model discloses a set up the heating cabinet to be equipped with hot pressing roller and tensile roller in the heating cabinet, can utilize the hot pressing roller to carry out hot pressing design and tensile to the polyester-cotton compound silk after the water spray, can improve the intensity of polyester-cotton compound silk, through utilizing roller axle sleeve and a connecting rod and No. two connecting rods to be connected with tensile roller, utilize the motor to rotate, make a lead screw and No. two lead screws rotate, adjust the angle of a connecting rod and No. two connecting rods, realize the regulation of tensile roller height.

Description

Polyester-cotton composite filament drafting and winding device
Technical Field
The utility model relates to a synthetic fiber produces relevant technical field, specifically is a polyester-cotton composite filament draft is around package and is put.
Background
The polyester-nylon composite yarn is generally processed and formed by a one-step method, has high production speed, good forming, large and neat package, uniform dyeing, less broken filaments and excellent physical indexes, and is particularly suitable for high-speed warping, high-speed knitting and high-speed weaving.
However, the conventional drafting and winding device for polyester-cotton composite yarn has the following disadvantages: the drafting is wound the roll in-process and is equipped with the cotton compound silk of polyester and easily because of the electrostatic adsorption dust, and the drafting is wound the in-process and is not carried out dust removal work to the cotton compound silk surface of polyester, lead to the more dust of cotton compound silk surface adhesion, influence the later stage and use, and in the drafting process, do not carry out appropriate tensile heat setting to the cotton compound silk of polyester, the intensity that leads to the cotton compound silk of polyester is not high, influence the use, some possess tensile heat setting function, tensile structure is not convenient for adjust according to the actual tensile condition, be not convenient for use, need improve.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a polyester-cotton composite filament draft is around rolling up device, with the draft that mentions in solving above-mentioned background art is easy because of the electrostatic adsorption dust around rolling up the in-process polyester-cotton composite filament, and the draft is around rolling up the in-process and not carrying out dust removal work to polyester-cotton composite filament surface, lead to the more dust of polyester-cotton composite filament surface adhesion, influence the later stage and use, and the draft in-process, do not carry out appropriate tensile heat setting to polyester-cotton composite filament, the intensity that leads to polyester-cotton composite filament is not high, the influence is used, some possess tensile heat setting function, tensile structure is not convenient for adjust according to the actual tensile condition, the problem of being not convenient for use.
In order to achieve the above object, the utility model provides a following technical scheme: a polyester-cotton composite filament drawing and winding device comprises a base, wherein a supporting column is arranged on the base, an ejector seat is arranged at the top end of the supporting column, a heating box is arranged above the base, a plurality of groups of hot pressing rollers are arranged inside the heating box, a drawing roller shaft is arranged between the hot pressing rollers, roller shaft sleeves are movably connected at two ends of the drawing roller shaft, a first connecting rod and a second connecting rod are respectively and movably connected on the roller shaft sleeves, a first lead screw and a second lead screw are arranged at the top end inside the heating box, one end of the first lead screw is rotatably connected with the inner wall of the heating box, the other end of the first lead screw and the other end of the second lead screw are welded through a connecting block, one end of the second lead screw is connected with a first motor arranged on the side wall of the heating box, threads on the first lead screw and the second lead screw are reversely arranged, a first nut and a second nut are respectively connected on the first lead screw and the, and a connecting rod and No. two connecting rod top respectively with a nut and No. two nut swing joint, heating cabinet one side is equipped with the spray box, spray box one side is equipped with the dust removal subassembly, the dust removal subassembly includes dust absorption pump and suction tube, be connected with the dust absorption pipe between dust absorption pump and the suction tube, and dust absorption pipe and the inside intercommunication of suction tube, it is equipped with the through wires hole to run through on the suction tube.
Preferably, one side of the dust collection pump is connected with a filtering dust collection box, one side of the filtering dust collection box is connected with an air return pipe, one end of the air return pipe extends to the upper end of the heating box and is connected with an air outlet pipe, and an air outlet of the air outlet pipe is located at the top end inside the heating box.
Preferably, the header tank is installed to the footstock upper end, the inside water pump that is equipped with of header tank, water pump one side is connected with the water pipe, water pipe one end extends to the inside top of spray tank and is connected with the atomizing shower nozzle.
Preferably, the dust suction cylinder is positioned on one side of the water spraying box, the bottom end of the dust suction cylinder is connected with an L-shaped mounting frame, and the dust suction cylinder is fixedly connected with the pillar through the L-shaped mounting frame.
Preferably, a guide roller is arranged on one side of the dust collection cylinder, and a second guide roller and a third guide roller are sequentially arranged between the water spraying box and the heating box.
Preferably, base upper surface one side is equipped with the rolling frame, be equipped with the wind-up roll on the rolling frame, wind-up roll one end is rotated with the rolling frame and is connected, and the wind-up roll other end and the output shaft of No. two motors that are equipped with on a rolling frame lateral wall.
The utility model provides a polyester-cotton composite filament drafting and winding device possesses following beneficial effect:
(1) the utility model discloses a set up the heating cabinet, and be equipped with hot pressing roller and tensile roller in the heating cabinet, can utilize the hot pressing roller to carry out hot pressing design and tensile to the compound silk of washing cotton after the water spray, can improve the intensity of washing cotton compound silk, through utilizing roller axle sleeve and a connecting rod and No. two connecting rods to be connected with tensile roller, can utilize the motor to rotate, thereby make a nut and No. two nut remove, make a connecting rod and No. two connecting rods respectively stretch roller axle sleeve and move up, thereby be convenient for adjust the height of tensile roller, it is effectual to make the compound silk of washing cotton tensile, and convenient to use.
(2) The utility model discloses a be equipped with a suction drum in spray box one side, can utilize dust absorption pump and suction drum will be siphoned away through the dust on the cotton composite filament surface of washing of suction drum, then make the cotton composite filament of washing get into the spray box humidification, can avoid the cotton composite filament surface of washing to produce the electrostatic absorption dust on the one hand, another makes things convenient for the cotton composite filament toughness of washing of humidification high, and tensile effectual is convenient for stretch in the heating cabinet, can improve the cotton composite filament intensity of washing.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a front view of the heating box of the present invention;
fig. 3 is a side view of the present invention;
fig. 4 is a schematic structural view of the suction tube of the present invention.
In the figure: 100. a base; 110. a pillar; 111. a top seat; 200. a first guide roller; 210. a second guide roller; 211. a third guide roller; 300. a dust removal assembly; 310. a dust suction pump; 311. a dust collection pipe; 312. a dust suction cylinder; 313. a filtering dust collection box; 314. threading holes; 315. an L-shaped mounting bracket; 400. a water collection tank; 410. a water pump; 411. a water pipe; 412. a water spraying tank; 413. an atomizing spray head; 500. a heating box; 510. a hot press roll; 600. a return air duct; 610. an air outlet pipe; 700. stretching the roll shaft; 710. a first motor; 711. connecting blocks; 712. a first screw rod; 713. a first nut; 714. a second screw rod; 715. a second nut; 716. a first connecting rod; 717. a second connecting rod; 718. a roller sleeve; 800. a winding frame; 810. a wind-up roll; 811. and a second motor.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-4, the utility model provides a technical solution: a polyester-cotton composite filament drawing and winding device comprises a base 100, wherein a supporting column 110 is arranged on the base 100, a top seat 111 is installed at the top end of the supporting column 110, a heating box 500 is arranged above the base 100, a plurality of groups of hot pressing rollers 510 are arranged inside the heating box 500, a drawing roller shaft 700 is arranged between the hot pressing rollers 510, roller shaft sleeves 718 are movably connected to two ends of the drawing roller shaft 700, a first connecting rod 716 and a second connecting rod 717 are respectively and movably connected to the roller shaft sleeves 718, a first lead screw 712 and a second lead screw 714 are arranged at the top end inside the heating box 500, one end of the first lead screw 712 is rotatably connected with the inner wall of the heating box 500, the other end of the first lead screw 712 and the second lead screw 714 are welded through a connecting block 711, one end of the second lead screw 714 is connected with a first motor 710 arranged on the side wall of the heating box 500, and threads on the first lead screw, and be connected with a nut 713 and No. two nuts 715 on a lead screw 712 and No. two lead screws 714 respectively, a connecting rod 716 and No. two connecting rods 717 are the crossing and set up the activity, and a connecting rod 716 and No. two connecting rods 717 top respectively with a nut 713 and No. two nut 715 swing joint, heating cabinet 500 one side is equipped with spray box 412, spray box 412 one side is equipped with dust removal component 300, dust removal component 300 includes dust absorption pump 310 and suction tube 312, be connected with dust absorption pipe 311 between dust absorption pump 310 and the suction tube 312, and inside intercommunication of dust absorption pipe 311 and suction tube 312, it is equipped with through wires hole 314 to run through on the suction tube 312.
One side of the dust collection pump 310 is connected with a filtering dust collection box 313, one side of the filtering dust collection box 313 is connected with an air return pipe 600, one end of the air return pipe 600 extends to the upper end of the heating box 500 and is connected with an air outlet pipe 610, an air outlet of the air outlet pipe 610 is positioned at the top end inside the heating box 500, filtered air flow can be sent into the air outlet pipe 610 through the air return pipe 600, the air outlet pipe 610 is discharged into the heating box 500, air flow in the heating box 500 is accelerated, and therefore drying of the polyester-cotton composite yarn is accelerated, and the use is convenient; the upper end of the top seat 111 is provided with a water collecting tank 400, a water pump 410 is arranged in the water collecting tank 400, one side of the water pump 410 is connected with a water pipe 411, one end of the water pipe 411 extends to the top end in the water spraying tank 412 and is connected with an atomizing nozzle 413, water in the water collecting tank 400 can be pumped by the water pump 410 and is sent to the atomizing nozzle 413 through the water pipe 411, and the atomizing nozzle 413 sprays to the polyester-cotton composite filaments passing through the water spraying tank 412 to humidify the polyester-cotton composite filaments; the dust collection cylinder 312 is positioned at one side of the water spraying box 412, the bottom end of the dust collection cylinder 312 is connected with an L-shaped mounting rack 315, and the dust collection cylinder 312 is fixedly connected with the support column 110 through the L-shaped mounting rack 315, so that the dust collection cylinder 312 is fixedly connected with the support column 110 through the L-shaped mounting rack 315, and the polyester-cotton composite filaments subjected to dust removal by the dust collection cylinder 312 are sent into the water spraying box 412; a first guide roller 200 is arranged on one side of the dust collection cylinder 312, a second guide roller 210 and a third guide roller 211 are sequentially arranged between the water spraying box 412 and the heating box 500, and the first guide roller 200, the second guide roller 210 and the third guide roller 211 can be used for guiding and conveying the conveyed polyester-cotton composite filaments to prevent the polyester-cotton composite filaments from knotting; a winding frame 800 is arranged on one side of the upper surface of the base 100, a winding roller 810 is arranged on the winding frame 800, one end of the winding roller 810 is rotatably connected with the winding frame 800, the other end of the winding roller 810 is connected with an output shaft of a second motor 811 arranged on one side wall of the winding frame 800, the second motor 811 can be used for driving the winding roller 810 to rotate, and the winding roller 810 is used for rotating to wind the polyester-cotton composite filament.
It should be noted that, in the drafting and winding device of a polyester-cotton composite filament, during operation, the polyester-cotton composite filament passes through the dust suction cylinder 312 through the threading hole 314, the dust suction pump 310 is started, the dust suction pump 310 and the dust suction pipe 311 are used for performing dust removal work on the polyester-cotton composite filament passing through the dust suction cylinder 312, so as to ensure the cleanness of the surface of the polyester-cotton composite filament, the dust-removed polyester-cotton composite filament enters the interior of the water spraying box 412 through the feed inlet of the water spraying box 412, the water pump 410 is started, the water in the water collecting box 400 is pumped by the water pump 410 and is sent to the atomizing nozzle 413 through the water pipe 411, the atomizing nozzle 413 sprays the polyester-cotton composite filament passing through the water spraying box 412 to humidify the polyester-cotton composite filament, on one hand, electrostatic dust adsorption on the surface of the polyester-cotton composite filament can be avoided, the other conveniently humidified polyester-cotton composite filament has high toughness and good stretching effect, and is convenient to stretch in the heating box 500, the strength of the humidified polyester-cotton composite filament can be improved, the humidified, the hot-press roller 510 in the heating box 500 is used for hot-press forming and stretching the sprayed polyester-cotton composite filament, so that the strength of the polyester-cotton composite filament can be improved, the stretching roller shaft 700 is connected with the first connecting rod 716 and the second connecting rod 717 through the roller shaft sleeve 718, the first motor 710 can be used for rotating, the first lead screw 712 and the second lead screw 714 can be rotated, the first nut 713 and the second nut 715 can move back and forth, the angles of the first connecting rod 716 and the second connecting rod 717 are changed, the roller shaft sleeve 718 is respectively pulled to move upwards through the first connecting rod 716 and the second connecting rod 717, the height of the stretching roller shaft 700 is changed, the height of the stretching roller shaft 700 can be changed according to the actual stretching condition, so that the stretching effect of the polyester-cotton composite filament is improved, the operation is simple and convenient to use, the return air pipe 600 sends filtered air into the air outlet pipe 610 in the stretching process, and an air outlet pipe 610 is arranged in the heating box 500 to accelerate the flow of air in the heating box 500, so that the drying of the polyester-cotton composite filament is accelerated, and the stretched and dried polyester-cotton composite filament is collected by a winding roller 810 on the winding frame 800.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a polyester-cotton composite filament drafting and winding device, includes base (100), its characterized in that: be equipped with pillar (110) on base (100), and pillar (110) top installs footstock (111), base (100) top is equipped with heating cabinet (500), heating cabinet (500) inside is equipped with multiunit hot pressing roller (510), and is equipped with between hot pressing roller (510) and stretch roller axle (700), stretch roller axle (700) both ends swing joint has roller axle sleeve (718), on roller axle sleeve (718) respectively swing joint have connecting rod (716) and No. two connecting rods (717), the inside top of heating cabinet (500) is equipped with a lead screw (712) and No. two lead screws (714), a lead screw (712) one end is connected with heating cabinet (500) inner wall rotation, and a lead screw (712) other end and No. two lead screws (714) weld through connecting block (711), No. two lead screw (714) one end is connected with motor (710) that are equipped with on heating cabinet (500) lateral wall, the threads on the first screw rod (712) and the second screw rod (714) are arranged in reverse direction, the first screw rod (712) and the second screw rod (714) are respectively connected with a first nut (713) and a second nut (715), the first connecting rod (716) and the second connecting rod (717) are movably arranged in a crossed manner, the top ends of the first connecting rod (716) and the second connecting rod (717) are respectively movably connected with the first nut (713) and the second nut (715), a water spraying box (412) is arranged on one side of the heating box (500), a dust removing component (300) is arranged on one side of the water spraying box (412), the dust removing assembly (300) comprises a dust suction pump (310) and a dust suction barrel (312), a dust suction pipe (311) is connected between the dust suction pump (310) and the dust suction barrel (312), the dust collection pipe (311) is communicated with the interior of the dust collection barrel (312), and a threading hole (314) penetrates through the dust collection barrel (312).
2. The drafting and winding device for polyester-cotton composite filaments according to claim 1, wherein: dust absorption pump (310) one side is connected with filters dust collection box (313), it is connected with return air pipe (600) to filter dust collection box (313) one side, return air pipe (600) one end extends to heating cabinet (500) upper end and is connected with out tuber pipe (610), the air outlet that goes out tuber pipe (610) is located the inside top of heating cabinet (500).
3. The drafting and winding device for polyester-cotton composite filaments according to claim 1, wherein: the water collecting tank (400) is installed to footstock (111) upper end, water pump (410) are equipped with in water collecting tank (400), water pump (410) one side is connected with water pipe (411), water pipe (411) one end extends to the inside top of spray tank (412) and is connected with atomizing shower nozzle (413).
4. The drafting and winding device for polyester-cotton composite filaments according to claim 1, wherein: the dust collection cylinder (312) is located on one side of the water spraying box (412), the bottom end of the dust collection cylinder (312) is connected with an L-shaped mounting frame (315), and the dust collection cylinder (312) is fixedly connected with the support column (110) through the L-shaped mounting frame (315).
5. The drafting and winding device for polyester-cotton composite filaments according to claim 1, wherein: dust suction cylinder (312) one side is equipped with deflector roll (200) No. one, be equipped with No. two deflector rolls (210) and No. three deflector rolls (211) between spray box (412) and heating cabinet (500) in proper order.
6. The drafting and winding device for polyester-cotton composite filaments according to claim 1, wherein: base (100) upper surface one side is equipped with rolling frame (800), be equipped with wind-up roll (810) on rolling frame (800), wind-up roll (810) one end is rotated with rolling frame (800) and is connected, and the output shaft of No. two motors (811) that are equipped with on wind-up roll (810) other end and rolling frame (800) a lateral wall.
CN201920888061.4U 2019-06-13 2019-06-13 Polyester-cotton composite filament drafting and winding device Active CN210085671U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920888061.4U CN210085671U (en) 2019-06-13 2019-06-13 Polyester-cotton composite filament drafting and winding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920888061.4U CN210085671U (en) 2019-06-13 2019-06-13 Polyester-cotton composite filament drafting and winding device

Publications (1)

Publication Number Publication Date
CN210085671U true CN210085671U (en) 2020-02-18

Family

ID=69482654

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920888061.4U Active CN210085671U (en) 2019-06-13 2019-06-13 Polyester-cotton composite filament drafting and winding device

Country Status (1)

Country Link
CN (1) CN210085671U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112011875A (en) * 2020-09-17 2020-12-01 清华大学 Air blowing type carbon fiber tension expanding equipment
CN112391713A (en) * 2020-10-27 2021-02-23 常熟市全申化纤有限公司 Hot stretching device of polyester yarn for spinning
CN113265734A (en) * 2021-06-16 2021-08-17 福建闽瑞新合纤股份有限公司 Intelligent fiber stretching mechanism for producing composite ES short fibers
CN113697598A (en) * 2021-10-26 2021-11-26 江苏盛斯达纺织科技有限公司 Blended yarn conveying and winding equipment with velvet removing function
CN113802293A (en) * 2021-09-17 2021-12-17 浙江映山红纺织科技有限公司 Yarn processing device for seat cover
WO2022077835A1 (en) * 2021-02-27 2022-04-21 苏州普轮电子科技有限公司 Surface cleaning device for cloth production

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112011875A (en) * 2020-09-17 2020-12-01 清华大学 Air blowing type carbon fiber tension expanding equipment
CN112011875B (en) * 2020-09-17 2021-12-14 清华大学 Air blowing type carbon fiber tension expanding equipment
CN112391713A (en) * 2020-10-27 2021-02-23 常熟市全申化纤有限公司 Hot stretching device of polyester yarn for spinning
WO2022077835A1 (en) * 2021-02-27 2022-04-21 苏州普轮电子科技有限公司 Surface cleaning device for cloth production
CN113265734A (en) * 2021-06-16 2021-08-17 福建闽瑞新合纤股份有限公司 Intelligent fiber stretching mechanism for producing composite ES short fibers
CN113802293A (en) * 2021-09-17 2021-12-17 浙江映山红纺织科技有限公司 Yarn processing device for seat cover
CN113802293B (en) * 2021-09-17 2023-10-10 浙江映山红纺织科技有限公司 Yarn processing device for seat cover
CN113697598A (en) * 2021-10-26 2021-11-26 江苏盛斯达纺织科技有限公司 Blended yarn conveying and winding equipment with velvet removing function
CN113697598B (en) * 2021-10-26 2023-04-18 江苏盛斯达纺织科技有限公司 Blended yarn conveying and winding equipment with velvet removing function

Similar Documents

Publication Publication Date Title
CN210085671U (en) Polyester-cotton composite filament drafting and winding device
CN208762729U (en) A kind of textile cloth ironing collection device
CN210529138U (en) Spinning dust treatment device for grey-colored spun yarns
CN112501892A (en) Automatic change cloth dust collector that disinfects for spinning machine
CN210826521U (en) Cotton removing device for twisting cotton yarn
CN103643324B (en) Spinning process of high-speed spinning machine with yarn twisting function
CN215490857U (en) Drying treatment device for improving comprehensive yarn dewatering efficiency
CN115924639B (en) Automatic winder of textile machinery
CN209009749U (en) A kind of weaving wrap-up with automatic leveling and clearing function
CN103643310B (en) Spinning technology of spinning machine
CN214736342U (en) High-end surface fabric is with washing high-accuracy drawing blending equipment of viscose yarn fibre
CN103643331B (en) Spinning process of high-speed spinning machine with active winding device
CN219032592U (en) Production warp knitting surface fabric is with antibiotic processing apparatus
CN212247470U (en) Production device of radiation-proof double-layer woven cloth
CN220079304U (en) Yarn anti-winding drawing device
CN103628156B (en) Spinning technology of spinning machine with active winding device
CN103643320B (en) High-speed spinning machine provided with three-spindle passive winding device
CN103628159B (en) Spinning technology of high-speed spinning machine provided with through shaft passive winding device
CN103628155B (en) Spinning process of high-speed spinning machine provided with novel single-spindle passive winding device
CN103628153B (en) Spinning technology of spinning machine provided with novel single-spindle passive winding device
CN103643323B (en) Spinning technology of spinning machine with single-spindle passive winding device
CN103643321B (en) Spinning process of high-speed spinning machine provided with single-spindle passive winding device
CN205347782U (en) Install printing and dyeing fabrics forming machine of humidifier
CN222024661U (en) Textile cleaning device
CN103628154B (en) Spinning technology of spinning machine provided with through shaft passive winding device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant