CN118326629B

CN118326629B - Spinning sizing device and process

Info

Publication number: CN118326629B
Application number: CN202410756854.6A
Authority: CN
Inventors: 郝隽; 李娟�; 张晶镜
Original assignee: Nantong Vocational College
Current assignee: Nantong Vocational College
Priority date: 2024-06-13
Filing date: 2024-06-13
Publication date: 2024-08-27
Anticipated expiration: 2044-06-13
Also published as: CN118326629A

Abstract

The invention discloses a spinning sizing device and a process, and particularly relates to the technical field of spinning, wherein the spinning sizing device sequentially comprises a pay-off rack, and the pay-off operation is carried out on spinning to be sized; a pretreatment unit for performing a prewetting treatment on the spun yarn; a sizing part for sizing the pretreated spinning line; a drying part for drying the sized spinning line; and the wire collecting frame is used for collecting the dried spinning wires, and a wire rotating device is arranged between the pretreatment part and the sizing part and at one side of the drying part far away from the sizing part. According to the invention, the spinning is turned over while the spinning is sized, so that uniform sizing is realized, meanwhile, the turned spinning and the pre-wetted spinning are twisted mutually, and redundant moisture in the pre-wetted spinning is extruded, so that slurry is facilitated to permeate into the spinning, and the whole-process non-contact sizing and drying treatment of the spinning are realized by a sizing process and a drying process, so that the sizing quality is improved.

Description

Spinning sizing device and process

Technical Field

The invention relates to the technical field of spinning, in particular to a spinning sizing device and a spinning sizing process.

Background

Spinning sizing refers to soaking raw material yarns in a certain proportion of sizing liquid, so that the surface of the raw material yarns is coated with a layer of sizing film to improve the physical properties of the raw material yarns and increase the degree of the yarn, the hardness and the operability of the yarns; the electrostatic winding and pilling phenomena of the yarn are reduced; improving production efficiency and reducing production cost.

In the prior art, there are generally the following sizing methods: 1. the guide wheel guides the spinning movement path to dip the spinning into the slurry for sizing, for example, an efficient spinning sizing device with a publication number of CN 213835868U; 2. the spinning thread is guided by a guide wheel to move through a brushing roller immersed with the sizing agent, and after the sizing agent on the brushing roller is smeared on the spinning thread, a high-precision smearing quantitative sizing device for textile fabric is disclosed in the publication No. CN 111020910A; 3. the sizing operation is performed on the yarns using a spray pattern slurry spray to the yarns, such as a fabric spray sizing apparatus of publication number CN112030398 a.

In the prior art, the contact between the sized spinning line and the guide wheel generates friction, so that the slurry at the contact part of the spinning line and the guide wheel is easily attached to the guide wheel or scraped off by the guide wheel, and the slurry is wrapped outside the spinning line and is not easy to infiltrate into the spinning line, so that the problems of heavy slurry and light slurry are easily caused in the spinning line, the sizing is uneven, and the sizing quality is reduced.

Disclosure of Invention

The invention aims to provide a spinning sizing device and a spinning sizing process, which are used for solving the problems of uneven sizing and low sizing quality in the prior art.

In order to achieve the above object, the present invention provides the following technical solutions: a yarn sizing apparatus comprising, in order: a pay-off rack for paying off the spinning wire to be sized; a pretreatment unit for performing a prewetting treatment on the spun yarn; a sizing part for sizing the pretreated spinning line; a drying part for drying the sized spinning line; and a take-up frame for winding the dried spinning wires.

The wire twisting devices are arranged between the pretreatment part and the sizing part and at one side of the drying part far away from the sizing part, and the two groups of wire twisting devices are arranged in a mirror symmetry mode, and each wire twisting device comprises a wire pressing assembly and a wire twisting assembly arranged at one side of the wire pressing assembly; the wire pressing assembly comprises a fixed frame and two rubber roller pieces arranged in the fixed frame, the two rubber roller pieces are distributed up and down and are both in rotary connection with the fixed frame, and the spinning wire is positioned between the two fixed frames; the thread twisting assembly comprises a fixed frame and a movable frame arranged in the fixed frame, the movable frame is in sliding connection with the fixed frame, an upper rubber roller is rotationally arranged in the movable frame, a lower rubber roller is arranged at the bottom of the upper rubber roller, the lower rubber roller is rotationally arranged at the bottom in the fixed frame, a thread is positioned between the upper rubber roller and the lower rubber roller, and an electric push rod for driving the movable frame to slide forwards and backwards is fixed at the front end of the fixed frame;

The spinning is pressed by the fixed frame and the rubber roller, the electric push rod drives the upper rubber roller and the lower rubber roller to relatively move to turn over one section of spinning between the two groups of yarn twisting components, so that the spinning is uniformly sized and dried, and meanwhile, the spinning between the yarn twisting components and the yarn twisting components is twisted mutually to extrude redundant moisture in the pre-wetted spinning, so that slurry is facilitated to permeate into the spinning, and the sizing quality is improved.

Preferably, the pretreatment part comprises a plurality of groups of mutually fixed prewetting components, each spinning thread penetrates through each group of prewetting components respectively, the prewetting components comprise a cylinder, a plurality of circular pipes are fixed on the outer wall of the cylinder, a plurality of spray heads are fixedly connected to the inner side of each circular pipe, the spray heads penetrate through the cylinder and encircle the outer side of each spinning thread in the cylinder, the passing spinning threads are prewetted by spraying hot water mist, and the tops of the circular pipes are communicated through water delivery pipes.

Preferably, the sizing part comprises a shell, a plurality of sizing cavities are partitioned by a partition plate in the shell, each spinning thread penetrates through each sizing cavity, a hollow plate is fixed at the top end of the inner part of each sizing cavity, the tops of the plurality of hollow plates are communicated through a sizing pipe, sizing holes are formed in the bottoms of the plurality of hollow plates, and slurry flowing down from the sizing holes forms a row of slurry curtain to carry out sizing operation on the passing spinning threads.

Preferably, the drying part comprises a heat insulation shell and a heater fixed at the top end of the heat insulation shell, a scraping part is arranged between the sizing part and the drying part, the scraping part comprises an outer cover, the outer cover is fixed between the connection shell and the heat insulation shell, the outer cover is close to an opening at one end of the connection shell, a plurality of round holes are formed in one end of the outer cover, which is close to the heat insulation shell, of each spinning thread, after the excessive slurry on the spinning thread is scraped out, the heater is used for drying the spinning thread passing through the heat insulation shell.

Preferably, a box body is arranged between the pay-off rack and the take-up rack, two supports which are distributed back and forth are fixed at the top end of the box body, the pretreatment part, the sizing part, the drying part and the wire rotating device are all fixed on the two supports, and guide rollers for guiding spinning wires are fixed at two ends of the supports.

Preferably, the box body is internally provided with a left hot water cavity and a right hot water cavity which are separated, the pretreatment part and a line rotating device close to the pretreatment part are arranged at the top of the hot water cavity, hot water in the hot water cavity is conveyed into a water conveying pipe for prewetting operation, a hole for hot water in the cylinder to flow back into the hot water cavity is formed in the bottom end of the cylinder, the sizing part and the sizing part are arranged at the top of the sizing cavity, sizing liquid in the sizing cavity is conveyed into the slurry conveying pipe for sizing operation, and holes for the sizing liquid in the outer shell and the outer cover to flow back into the sizing cavity are formed in the sizing cavity and the bottom end of the outer cover.

Preferably, both ends of the cylinder are respectively fixed with a conical cylinder, a cavity is arranged in the inner wall of the conical cylinder, a plurality of water inlets are formed in the inner wall of the conical cylinder, a water pumping pipe is fixed on the outer wall of the conical cylinder, and the water pumping pipe is connected with an external exhaust fan to pump away hot water mist in the conical cylinder so as to prevent the water mist from escaping.

Preferably, the shell both ends all are fixed with the connection shell, set up the inner chamber in the connection shell inner wall, a plurality of advance thick liquid holes have been seted up to the connection shell inner wall, and connect the shell outer wall to be fixed with and take out thick liquid pipe, take out thick liquid that thick liquid pipe connection outside air exhauster will connect the interior spill of shell and take out, prevent that thick liquid from splashing.

The invention comprises a sizing process of a spinning sizing device, which comprises the following specific steps:

Step one: paying off operation is carried out on the spinning wires to be sized through a pay-off frame, the spinning wires are guided into a pretreatment part through guide rollers, then hot water in a hot water cavity is conveyed into a water conveying pipe through a pump, and the hot water sprays hot water mist to the spinning wires through a spray head to carry out prewetting treatment on the spinning wires;

Step two: the pre-wetted spinning thread passes between two rubber roller parts of the thread rotating device, the two rubber roller parts press water in the spinning thread, meanwhile, the spinning thread passes between an upper rubber roller and a lower rubber roller, and the movable frame drives the upper rubber roller and the lower rubber roller to relatively move for thread twisting, so that the spinning thread between the thread pressing component and the thread twisting component is twisted mutually to extrude redundant water in the pre-wetted spinning thread;

Step three: the spinning thread enters the sizing part, the sizing liquid in the sizing liquid cavity is conveyed into the sizing liquid conveying pipe by a pump, then flows down from a plurality of sizing holes at the bottom of the sizing liquid conveying pipe, the flowing sizing liquid forms a row of sizing liquid curtain to be sprayed on the spinning thread at the bottom, sizing operation is carried out on the spinning thread, and meanwhile, the electric push rods in the two groups of thread twisting components work to enable the two sizing rollers to synchronously move, so that one section of spinning thread between the two groups of thread twisting components synchronously overturns, and sizing of the spinning thread is even;

Step four: the surface superfluous slurry of the sized spinning thread is scraped by a slurry scraping part;

Step five: the spinning thread is dried by a drying part;

step six: and finally, guiding the dried spinning thread to a take-up frame by a guide roller for winding.

In the technical scheme, the invention has the technical effects and advantages that:

1. The slurry curtain in the sizing part performs sizing operation on the yarns, one section of yarns between the two groups of yarn twisting assemblies are turned over through the yarn twisting assemblies, uniform sizing of the yarns is achieved, meanwhile, the turned yarns and the yarns after prewetting are twisted mutually, and further redundant moisture in the yarns after prewetting is extruded, so that slurry is facilitated to permeate into the yarns, affinity between the slurry and fibers is enhanced, and sizing quality is improved.

2. According to the invention, the pay-off rack is used for paying off, the pretreatment part is used for carrying out prewetting treatment on the spinning line, the sizing part is used for carrying out sizing operation on the pretreated spinning line, the drying part is used for carrying out drying operation on the sized spinning line, and finally, the dried spinning line is wound up to the take-up rack, so that the process automation degree is high; meanwhile, the whole-process non-contact sizing and drying treatment of the spinning line are realized by the sizing process and the drying process, so that the slurry on the spinning line after sizing is prevented from being scratched, the problems of heavy slurry and light slurry are avoided, and the sizing quality is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a view showing the overall construction of a yarn sizing device according to the present invention;

FIG. 2 is a block diagram of the spun yarn sizing apparatus of the present invention with the pay-off rack, take-up rack, guide roller and guide roller removed;

FIG. 3 is a front view of the pretreatment section, sizing section, drying section, wire transfer device, sizing section and bracket of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a construction diagram of a transfer device in the yarn sizing device according to the present invention;

FIG. 6 is a view showing a structure of a yarn twisting assembly in the yarn sizing device of the present invention;

FIG. 7 is a view showing a construction of a pretreatment unit in the textile sizing device according to the present invention;

FIG. 8 is a front cross-sectional view of a pretreatment section in the yarn sizing device of the present invention;

FIG. 9 is an enlarged view of portion B of FIG. 8;

FIG. 10 is a side cross-sectional view of a prewetting assembly in a spin-sizing apparatus of the present invention;

FIG. 11 is a view showing the construction of a sizing section, a drying section and a doctor section in the wire sizing apparatus of the present invention;

FIG. 12 is an enlarged view of portion C of FIG. 11;

Fig. 13 is a sectional view of a sizing section and a doctor section in the yarn sizing device of the present invention.

Reference numerals illustrate:

1, paying off a wire frame;

2a pretreatment part, 21 a prewetting component, 22 a water supply pipe, 211 a cylinder, 212 a circular ring pipe, 213 a spray head, 214 a water suction pipe, 215 a conical cylinder, 216 a cavity and 217 a water inlet;

3 sizing part, 31 outer shell, 32 sizing cavity, 33 hollow plate, 34 sizing pipe, 35 connecting outer shell, 36 inner cavity, 37 sizing inlet, 38 sizing pipe;

4, a drying part, 41 a heat insulation shell and 42 a heater;

5, collecting a wire frame;

6 line rotating device, 61 line pressing component, 62 line rubbing component, 611 fixed frame, 612 rubber roller, 621 fixed frame, 622 movable frame, 623 upper rubber roller, 624 lower rubber roller, 625 electric push rod;

7 scraping parts, 71 outer covers, 8 boxes, 9 brackets and 10 guide rollers.

Detailed Description

In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

The invention provides a spinning sizing device as shown in figures 1-13, which sequentially comprises a pay-off rack 1, a pretreatment part 2, a sizing part 3, a drying part 4, a sizing part 7 and a take-up rack 5, wherein a wire rotating device 6 is arranged between the pretreatment part 2 and the sizing part 3 and at one side of the drying part 4 far away from the sizing part 3, and the two groups of wire rotating devices 6 are arranged in mirror symmetry; be equipped with box 8 between pay off rack 1 and the pay off rack 5, be equipped with left and right sides spaced apart hot water cavity and thick liquid chamber in the box 8, pretreatment portion 2 and be close to pretreatment portion 2's change line device 6 and locate hot water cavity top, sizing portion 3 and scrape thick liquid portion 7 and locate thick liquid chamber top, box 8 top is fixed with two support 9 that distribute around, pretreatment portion 2, sizing portion 3, stoving portion 4, change line device 6 all are fixed in on two support 9, support 9 both ends all are fixed with the deflector roll 10 that guides the spinning.

The spinning sizing process comprises the following steps:

Step one: the paying-off operation is carried out on the spinning line to be sized through the paying-off frame 1, and the spinning line is guided into the pretreatment part 2 through the guide roller 10 to be subjected to prewetting treatment, so that the subsequent sizing agent is convenient to adhere to the spinning line;

Specifically, as shown in fig. 7-10, the pretreatment portion 2 includes a plurality of groups of mutually fixed prewetting assemblies 21, each yarn penetrates through each group of prewetting assemblies 21, the prewetting assemblies 21 include a cylinder 211, a plurality of circular pipes 212 are fixed on the outer wall of the cylinder 211, a plurality of spray heads 213 are fixedly connected to the inner side of each circular pipe 212, the plurality of spray heads 213 penetrate through the cylinder 211 and encircle the outer side of the yarn in the cylinder 211, and the tops of the plurality of circular pipes 212 are communicated through a water supply pipe 22. The hot water in the hot water chamber is pumped into the water pipe 22, and the hot water is sprayed to the yarns in the cylinder 211 through the annular pipe 212 and the nozzle 213 to pre-wet the yarns.

Step two: the prewetted spinning thread passes through a thread transferring device 6 to remove redundant water among spinning thread fibers;

Specifically, as shown in fig. 4-6, the thread rolling device 6 includes a thread pressing assembly 61 and a thread rolling assembly 62 disposed at one side of the thread pressing assembly 61, the thread pressing assembly 61 includes a fixed frame 611 and two rubber roll members 612 disposed inside the fixed frame 611, the two rubber roll members 612 are vertically distributed and are rotationally connected with the fixed frame 611, a thread is located between the two fixed frames 611, the thread rolling assembly 62 includes a fixed frame 621 and a movable frame 622 disposed inside the fixed frame 621, the movable frame 622 is slidingly connected with the fixed frame 621, an upper rubber roll 623 is rotationally disposed inside the movable frame 622, a lower rubber roll 624 is disposed at the bottom of the upper rubber roll 623, the lower rubber roll 624 is rotationally disposed at the bottom inside the fixed frame 621, the thread is located between the upper rubber roll 623 and the lower rubber roll 624, and an electric push rod 625 for driving the movable frame 622 to slide back and forth is fixed at the front end of the fixed frame 621;

The pre-wetted spinning thread passes between the two rubber roll members 612, the two rubber roll members 612 can press water in the spinning thread, then the spinning thread passes between the upper rubber roll 623 and the lower rubber roll 624, the electric push rod 625 drives the movable frame 622 to slide forwards and backwards, so that the upper rubber roll 623 and the lower rubber roll 624 relatively move, the lower rubber roll 624 is used for twisting the spinning thread, and redundant water in the pre-wetted spinning thread is extruded by twisting the spinning thread between the thread pressing assembly 61 and the thread twisting assembly 62.

Step three: the spinning thread passes through the sizing part 3 to carry out sizing operation;

Specifically, as shown in fig. 11 and 13, the sizing section 3 includes a housing 31, a plurality of sizing chambers 32 are separated by a partition plate in the housing 31, each spinning thread penetrates through each sizing chamber 32, a hollow plate 33 is fixed at the top end of the interior of each sizing chamber 32, the tops of the plurality of hollow plates 33 are communicated through a slurry feeding pipe 34, and slurry outlets are formed at the bottom of each hollow plate 33. The slurry in the slurry cavity is conveyed to the slurry conveying pipe 34 by a pump, then the slurry enters the slurry conveying pipe 34 and flows down from a plurality of slurry outlets at the bottom of the slurry conveying pipe 34, the flowing slurry forms a row of slurry curtains to be sprayed on the yarns at the bottom to carry out sizing operation on the yarns, and meanwhile, the electric push rods 625 in the two groups of yarn twisting components 62 work to enable the two rubber coating rollers 623 to synchronously move, so that one section of yarns between the two groups of yarn twisting components 62 synchronously overturn, further, the sizing of the yarns is uniform, in addition, as moisture among the yarns is extruded, the penetration of the slurry into the yarns is facilitated, the affinity between the slurry and the fibers is enhanced, and the sizing quality is improved.

Step four: the surface surplus slurry is scraped by the yarn scraping part 7 after sizing;

Specifically, as shown in fig. 11, the scraping portion 7 includes a housing 71, and a plurality of circular holes are formed at one end of the housing 71 near the heat insulation housing 41, each yarn passes through each circular hole, and the excess slurry on the yarn is scraped.

Step five: the spinning thread is dried by a drying part 4;

specifically, as shown in fig. 11, the drying section 4 includes a heat insulating housing 41 and a heater 42 fixed to the top end of the heat insulating housing 41, and the heater 42 performs a drying operation on the yarn passing through the heat insulating housing 41.

Step six: finally, the dried yarn is guided to the take-up frame 5 by the guide roller 10 for winding.

As shown in fig. 8, a hole for hot water flowing back into the hot water cavity in the cylinder 211 is formed at the bottom end of the cylinder 211, and meanwhile, the water extruded on the spinning thread flows into the hot water cavity, so that the hot water can be recycled, and the cost is saved. As shown in fig. 11, holes for allowing the slurry in the housing 31 and the outer cover 71 to flow back into the slurry cavity are formed at the bottom ends of the slurry cavity 32 and the outer cover 71, so that the slurry can be recycled, and the cost is saved.

Further, in order to prevent the hot water mist in the cylinder 211 from escaping from the surrounding environment through the two ends of the cylinder 211, as shown in fig. 7-9, conical cylinders 215 are fixed at the two ends of the cylinder 211, cavities 216 are arranged in the inner walls of the conical cylinders 215, a plurality of water inlet holes 217 are formed in the inner walls of the conical cylinders 215, water pumping pipes 214 are fixed on the outer walls of the conical cylinders 215, and the water pumping pipes 214 are connected with an external exhaust fan to pump the hot water mist in the conical cylinders 215.

Further, in order to avoid that slurry in the shell 31 splashes out through two ends of the shell 31 to pollute the surrounding environment, as shown in fig. 11-13, a connecting shell 35 is fixed at two ends of the shell 31, the outer cover 71 is fixed between the connecting shell 35 and the heat insulation shell 41, the outer cover 71 is close to an opening at one end of the connecting shell 35, an inner cavity 36 is arranged in the inner wall of the connecting shell 35, a plurality of slurry inlet holes 37 are formed in the inner wall of the connecting shell 35, a slurry pumping pipe 38 is fixed on the outer wall of the connecting shell 35, and the slurry pumping pipe 38 is connected with an external exhaust fan to pump the slurry splashed out in the connecting shell 35.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.

Claims

1. A yarn sizing apparatus comprising, in order:

A pay-off rack (1) for paying off the spinning wire to be sized;

a pretreatment unit (2) for performing a prewetting treatment on the yarn;

a sizing unit (3) for sizing the pretreated yarn;

a drying part (4) for drying the sized spinning line;

A take-up frame (5) for winding the dried spinning wire;

The pretreatment part (2) comprises a plurality of groups of mutually fixed prewetting assemblies (21), and each spinning thread respectively penetrates through each group of prewetting assemblies (21) to carry out prewetting treatment;

The sizing part (3) comprises a shell (31), wherein a plurality of sizing cavities (32) are partitioned by a partition plate in the shell (31), and each spinning thread respectively penetrates through each sizing cavity (32) to perform sizing operation;

The drying part (4) comprises a heat insulation shell (41) and a heater (42) fixed at the top end of the heat insulation shell (41);

A wire rotating device (6) is arranged between the pretreatment part (2) and the sizing part (3) and at one side of the drying part (4) far away from the sizing part (3), the two groups of wire rotating devices (6) are arranged in a mirror symmetry mode, and the wire rotating devices (6) comprise a wire pressing component (61) and a wire rubbing component (62) arranged at one side of the wire pressing component (61);

The wire pressing assembly (61) comprises a fixed frame (611) and two rubber roller pieces (612) arranged in the fixed frame (611), wherein the two rubber roller pieces (612) are distributed up and down and are both rotationally connected with the fixed frame (611), and a spinning wire is positioned between the two fixed frames (611);

The yarn twisting assembly (62) comprises a fixed frame (621) and a movable frame (622) arranged in the fixed frame (621), the movable frame (622) is in sliding connection with the fixed frame (621), an upper rubber roller (623) is rotatably arranged in the movable frame (622), a lower rubber roller (624) is arranged at the bottom of the upper rubber roller (623), the lower rubber roller (624) is rotatably arranged in the fixed frame (621), yarns are positioned between the upper rubber roller (623) and the lower rubber roller (624), and an electric push rod (625) for driving the movable frame (622) to slide forwards and backwards is fixed at the front end of the fixed frame (621);

The pre-wetted spinning thread passes through a space between two rubber roller parts (612) of a thread rotating device (6), the two rubber roller parts (612) press water in the spinning thread, then the spinning thread passes through a space between an upper rubber roller (623) and a lower rubber roller (624), and an electric push rod (625) drives the upper rubber roller (623) and the lower rubber roller (624) to perform thread twisting, so that the spinning thread between a thread pressing component (61) and a thread twisting component (62) performs mutual torsion and extrusion of redundant water in the pre-wetted spinning thread;

Through fixed frame (611) and rubber roll spare (612) suppression threadline, electric putter (625) drive rubberizing roller (623) and lower rubber roll (624) relative motion overturns the one section threadline between two sets of threadline subassembly (62) of rubbing, make threadline sizing and stoving even, threadline between crimping subassembly (61) and the threadline subassembly (62) of rubbing takes place to twist reverse each other and extrude the unnecessary moisture in the threadline after prewetting simultaneously, is favorable to thick liquid infiltration to advance inside the threadline, improves sizing quality.

2. A yarn sizing apparatus as claimed in claim 1, wherein: the prewetting assembly (21) comprises a cylinder (211), a plurality of circular ring pipes (212) are fixed on the outer wall of the cylinder (211), a plurality of spray heads (213) are fixedly connected to the inner side of each circular ring pipe (212), the spray heads (213) penetrate through the cylinder (211) and encircle the outer side of spinning threads in the cylinder (211), prewetting is carried out on the passing spinning threads by spraying hot water mist, and the tops of the circular ring pipes (212) are communicated through a water supply pipe (22).

3. A yarn sizing apparatus as claimed in claim 2, wherein: the top inside each sizing cavity (32) is fixed with a hollow plate (33), the tops of a plurality of hollow plates (33) are communicated through a sizing pipe (34), the bottom of each hollow plate (33) is provided with a sizing hole, and sizing operation is carried out on the passing spinning wires by forming a row of sizing curtains by sizing liquid flowing down from the sizing holes.

4. A yarn sizing apparatus as claimed in claim 3, wherein: a box body (8) is arranged between the pay-off rack (1) and the take-up rack (5), two supports (9) which are distributed front and back are fixed at the top end of the box body (8), the pretreatment part (2), the sizing part (3), the drying part (4) and the wire rotating device (6) are all fixed on the two supports (9), and guide rollers (10) for guiding spinning wires are fixed at two ends of the supports (9);

The box body (8) is internally provided with a hot water cavity and a slurry cavity which are separated left and right, the pretreatment part (2) and a wire rotating device (6) close to the pretreatment part (2) are arranged at the top of the hot water cavity, hot water in the hot water cavity is conveyed into a water conveying pipe (22) for prewetting operation, and a hole for hot water in the cylinder (211) to return to the hot water cavity is formed at the bottom end of the cylinder (211);

The sizing part (3) is arranged at the top of the slurry cavity, slurry in the slurry cavity is conveyed into the slurry conveying pipe (34) for sizing operation, and holes for the slurry in the shell (31) to flow back into the slurry cavity are formed in the bottom end of the sizing cavity (32).

5. A yarn sizing apparatus as claimed in claim 4, wherein: a scraping part (7) is arranged between the sizing part (3) and the drying part (4), the scraping part (7) comprises an outer cover (71), one end of the outer cover (71) close to the sizing part (3) is provided with an opening, one end of the outer cover (71) close to the drying part (4) is provided with a plurality of round holes, each spinning thread passes through each round hole, and after the excessive slurry on the spinning thread is scraped, the heater (42) is used for drying the spinning thread passing through the heat insulation shell (41);

the slurry scraping part (7) is arranged at the top of the slurry cavity, and holes for the slurry in the outer cover (71) to flow back into the slurry cavity are formed in the bottom end of the outer cover (71).

6. A yarn sizing apparatus as claimed in claim 2, wherein: the utility model discloses a water mist collecting device, including cylinder (211), cone (215), a plurality of inlet holes (217) are seted up to cone (215) inner wall, cone (215) both ends are all fixed with cone (215), set up cavity (216) in cone (215) inner wall, and cone (215) outer wall is fixed with drinking-water pipe (214), and outside air exhauster is connected to drinking-water pipe (214) take away the hot water mist in cone (215), prevents that water mist from escaping.

7. A yarn sizing apparatus as claimed in claim 1, wherein: the utility model discloses a thick liquid, including shell (31) and outer shell, shell (31) both ends all are fixed with connection shell (35), set up inner chamber (36) in connection shell (35) inner wall, a plurality of advance thick liquid holes (37) have been seted up to connection shell (35) inner wall, and connection shell (35) outer wall is fixed with and takes out thick liquid pipe (38), takes out thick liquid that outside air exhauster will connect in shell (35) to spill, prevents that thick liquid from splashing.

8. A sizing process of a yarn sizing device according to any one of claims 1-7, characterized by the following specific steps:

Step one: paying off operation is carried out on the spinning wire to be sized through a pay-off frame (1), the spinning wire is guided into a pretreatment part (2) through a guide roller (10), then hot water in a hot water cavity is conveyed into a water conveying pipe (22) through a pump, and the hot water sprays hot water mist to the spinning wire through a spray head (213) to pre-wet the spinning wire;

step two: the pre-wetted spinning thread passes through a space between two rubber roller parts (612) of a thread rotating device (6), the two rubber roller parts (612) press water in the spinning thread, then the spinning thread passes through a space between an upper rubber roller (623) and a lower rubber roller (624), and an electric push rod (625) drives the upper rubber roller (623) and the lower rubber roller (624) to perform thread twisting, so that the spinning thread between a thread pressing component (61) and a thread twisting component (62) performs mutual torsion and extrusion of redundant water in the pre-wetted spinning thread;

Step three: the spinning wires enter the sizing part (3), the slurry in the slurry cavity is conveyed into the slurry conveying pipe (34) by a pump, then flows down from a plurality of slurry outlets at the bottom of the slurry conveying pipe (34), the flowing slurry forms a row of slurry curtains to be sprayed on the spinning wires at the bottom, the spinning wires are subjected to sizing operation, and meanwhile, the electric push rods (625) in the two groups of wire twisting components (62) work to enable the two rubberizing rollers (623) to synchronously move, so that one section of spinning wires between the two groups of wire twisting components (62) synchronously overturn, and the sizing of the spinning wires is uniform;

step four: the surface superfluous slurry of the sized spinning thread is scraped by a slurry scraping part (7);

Step five: the spinning thread is dried by a drying part (4);

Step six: finally, the dried yarn is guided to a take-up frame (5) by a guide roller (10) for winding.