Apparatus and process for producing superdrawn compact core yarn

Abstract

The application relates to the field of spinning technology, in particular to an equipment for preparing super-large-draft tight core-spun yarn and a spinning process, which comprises a cleaning mechanism for cleaning short-fiber impurities generated in the processing of the core-spun yarn and an auxiliary mechanism for disassembling the cleaning mechanism. The short fibers and other impurities attached to the surface of the drafting roller are cleaned by the cleaning-scraping assembly of the cleaning mechanism, so that the processing of the core-spun yarn is not affected by the large amount of short fibers and other impurities attached to the surface of the drafting roller. The short fibers and other impurities attached to the cleaning-scraping assembly are cleaned by the collecting assembly, so that the cleaning effect of the cleaning-scraping assembly on the drafting roller is ensured, and the cleaning of the drafting roller by the arc-shaped scraping plate of the cleaning-scraping assembly is not affected by the residual short fibers and other impurities. The arc-shaped scraping plate of the cleaning-scraping assembly and the collecting assembly is disassembled by the auxiliary mechanism, so that the arc-shaped scraping plate can be adjusted according to the number of the drafting rollers, and the application is suitable for different numbers of the drafting rollers.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of spinning, in particular to the equipment for preparing super large draft tight core-spun yarn and the spinning process. BACKGROUND

[0002] The core-spun yarn is generally made of synthetic fiber filament as core yarn, and the outer part is wrapped with cotton, wool, viscose fiber and other short fibers. The core-spun yarn needs to be drafted during the preparation process, which aims to increase the cohesion between the short fibers and the filaments. The two filaments are located on the two sides of the cotton strip, which increases the cohesion between the short fibers and the filaments, and reduces the "peeling" phenomenon during weaving, because the first method wraps the cotton fibers on the surface of the yarn, and the polyester filaments are in the middle of the yarn. The cotton fibers have poor cohesion between the filaments.

[0003] The application number 202320687281.7 discloses a super large draft roller mechanism for preparing tight core-spun yarn. The problem in the background technology is that the existing core-spun yarn needs to be processed by multiple draft roller mechanisms during processing. However, a large amount of short fluff impurities will adhere to the surface of the draft roller mechanism during the secondary processing, which cannot be cleaned in time during processing, resulting in more and more short fluff impurities, which affects the processing quality of the core-spun yarn. However, it has the following problems:

[0004] The arc-shaped cleaning scraper plate is used to clean the short fluff and other impurities adhering to the surface of the draft roller. However, during cleaning, the rotating draft roller will accumulate short fluff and other impurities on the concave surface of the arc-shaped cleaning scraper plate and at the junction of the arc-shaped cleaning scraper plate and the draft roller. If the accumulated short fluff and other impurities are not cleaned, it will affect the cleaning effect of the draft roller during long-term use. In addition, the number of draft rollers in the existing core-spun yarn drafting equipment varies according to the actual specifications of the core-spun yarn. The cleaning mechanism is not convenient to adjust according to the different number of draft rollers, which has certain disadvantages. To solve the above problems, the equipment for preparing super large draft tight core-spun yarn and the spinning process are proposed. SUMMARY

[0005] The purpose of the present application is to provide an equipment for preparing super large draft tight core-spun yarn and a spinning process. In order to overcome the shortcomings of the existing technology, the equipment for preparing super large draft tight core-spun yarn and the spinning process are provided, which can not only clean the draft roller but also clean the short fluff and other impurities accumulated in the cleaning mechanism and at the junction of the cleaning mechanism and the draft roller, which is convenient for long-term use and suitable for different number of draft rollers.

[0006] The application is achieved by providing an equipment for preparing super-large drafting compact core yarn, which comprises a machine body, drafting rollers arranged in the machine body for drafting the core yarn, a cleaning mechanism for cleaning short fiber impurities generated during the processing of the core yarn, and an auxiliary mechanism for disassembling the cleaning mechanism.

[0007] The cleaning mechanism comprises a cleaning scraper assembly arranged in the machine body for cleaning the surface of the drafting rollers and a collecting assembly in linkage with the cleaning scraper assembly for cleaning the core yarn short fibers accumulated on the surface of the cleaning scraper assembly, the collecting assembly comprising a rotating rod rotatably connected to the top of the machine body, a circular scraper plate arranged on the side wall of the rotating rod, and a first gear in transmission connection with the rotating rod.

[0008] Further, the cleaning scraper assembly comprises an arc-shaped scraper plate for cleaning the surface of the drafting rollers, a mounting rod in sliding connection with the inner side of the machine body, a servo motor, and a sliding groove opened on both sides of the inner side of the machine body, wherein the inner side of the sliding groove is provided with a sliding block, the left end of the mounting rod is fixedly connected to the left sliding block away from the left sliding groove, the output shaft of the servo motor is fixedly provided with a threaded rod extending into the left sliding groove through a shaft coupling, one end of the threaded rod located in the left sliding groove is in threaded connection with the left sliding block, the side wall of the threaded rod is in transmission connection with the first gear through a bevel gear, the cleaning scraper assembly further comprises a cylindrical shaft fixedly arranged in the right sliding groove, and the sliding block in the right sliding groove is sleeved on the side wall of the cylindrical shaft.

[0009] Further, the collecting assembly further comprises a second gear fixedly sleeved on the side wall of the rotating rod, the second gear and the first gear are in transmission connection through a chain, the side wall of the threaded rod is fixedly sleeved with a first bevel gear, the outer wall of the machine body is rotatably connected with a rotating shaft, the side wall of the rotating shaft is fixedly sleeved with a second bevel gear engaged with the first bevel gear, and the inner wall of the first gear is fixedly sleeved on the other end of the side wall of the rotating shaft.

[0010] Further, the auxiliary mechanism comprises a first auxiliary assembly for disassembling the arc-shaped scraper plate, an opening and closing assembly for assisting the first auxiliary assembly in disassembling the arc-shaped scraper plate, and a second auxiliary assembly for disassembling the circular scraper plate.

[0011] The first auxiliary assembly comprises a connecting piece sleeved on the side wall of the mounting rod, a connecting frame fixedly arranged at the bottom of the connecting piece, and a first limiting rod sleeved on the bottom of the connecting frame and extending into the mounting rod, the side wall of the first limiting rod is fixedly sleeved with a first baffle, the side wall of the first limiting rod and located at the bottom of the first baffle is sleeved with a first spring, the top of the connecting piece is fixedly connected with the bottom of the arc-shaped scraper plate, the outer wall of the connecting piece is provided with a first limiting hole sleeved with the first limiting rod at the bottom, and the side wall of the mounting rod is provided with a first limiting groove arranged in a rectangular array and matched with the side wall of the first limiting rod.

[0012] Further, the opening and closing assembly comprises a first limiting plate fixedly connected with the right slider, a second limiting plate, a limiting block fixedly arranged at the top of the second limiting plate, and a second limiting rod sleeved at the right end of the mounting rod, the internal right end of the mounting rod is provided with a second limiting groove, a third limiting groove and a fourth limiting groove, the inner wall of the second limiting groove is matched with the side wall of the limiting block, the inner part of the fourth limiting groove is matched with the side wall of the second limiting plate, the side wall of one end of the second limiting rod located in the third limiting groove is fixedly sleeved with a second baffle, the side wall of the second limiting rod located at the right side of the baffle is sleeved with a second spring, the right end of the mounting rod is provided with a fifth limiting groove sleeving the second limiting rod and extending to the left inner wall of the second limiting groove, the side wall of the limiting block is provided with a second limiting hole sleeving the second limiting rod, the side of the first limiting plate away from the second limiting plate is fixedly connected, and the side of the first limiting plate away from the second limiting plate is arc-shaped.

[0013] Further, the second auxiliary assembly comprises fixed blocks fixedly sleeved at the side walls of the rotating rod and arranged in a rectangular array, and fixed plates fixedly arranged at both sides of the circular scraper, the side wall of the circular scraper is provided with a through groove sleeving the fixed block, and the fixed plate and the fixed block are fixedly connected through screws.

[0014] Further, the top of the machine body is fixedly provided with a connecting seat on both sides through screws, one end of the rotating rod is rotatably connected with the inner wall of one of the connecting seats, and the other end of the rotating rod is sleeved in the other connecting seat.

[0015] Further, the bottom inner wall of the machine body is provided with a storage box located at the bottom of the circular scraper, the top of the storage box is designed in an open manner, and the front of the machine body is hingedly connected with a cover plate.

[0016] Further, the spinning process of the device for preparing the ultra-large draft tight core-spun yarn comprises the following steps by adopting the device for preparing the ultra-large draft tight core-spun yarn.

[0017] S1: introducing the core-spun yarn to be drafted into the machine body through the feed port on one side of the machine body, drafting the core-spun yarn by the drafting roller in the machine body, and discharging the drafted core-spun yarn out of the machine body through the discharge port on the other side of the machine body for other spinning operations;

[0018] S2: when the drafting roller drafts the core-spun yarn, the short fibers and other impurities attached to the surface of the drafting roller are cleaned by the cleaning and scraping assembly, and the short fibers and other impurities accumulated on the cleaning and scraping assembly are cleaned and collected by the collecting assembly;

[0019] S3: the circular scraper and the arc-shaped scraper are disassembled by the auxiliary mechanism for later maintenance and replacement, and the number of the arc-shaped scrapers and the circular scrapers can be adjusted according to the number of the drafting rollers for cleaning the drafting rollers of different numbers.

[0020] Compared with the prior art, the present invention has the following beneficial effects;

[0021] 1. This invention uses a cleaning mechanism with a scraping component to remove short fibers and other impurities attached to the surface of the drafting rollers, preventing the processing of core-spun yarn from being affected by a large amount of short fibers and other impurities adhering to the surface of the drafting rollers. Furthermore, a collection component removes short fibers and other impurities attached to the scraping component, ensuring the cleaning effect of the scraping component on the drafting rollers. This prevents excessive residue of short fibers and other impurities from remaining in the arc-shaped scraper of the scraping component, which would affect the cleaning of the drafting rollers, facilitating long-term use. An auxiliary mechanism allows for easy disassembly and assembly of the circular scraper of the arc-shaped scraper of both the scraping and collection components, facilitating adjustments based on the number of drafting rollers, thus adapting to different numbers of drafting rollers and facilitating subsequent maintenance and replacement.

[0022] 2. The cleaning component and the collection component of the present invention are implemented in a linkage manner, which has low cost and is easy to use in practice. The short fibers and other impurities scraped off by the collection component are collected in the storage box for centralized processing. By making the positions of the circular scraper and the arc-shaped scraper correspond to each other, and making the position of the arc-shaped scraper correspond to the position of the drawing roller, it is easy to clean and collect short fibers and other impurities. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the open structure of the body of the present invention;

[0025] Figure 3 This is a schematic cross-sectional view of the body structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the cleaning mechanism and auxiliary mechanism of the present invention;

[0027] Figure 5 This is the present invention. Figure 4 A magnified structural diagram of A in the middle;

[0028] Figure 6 This is a schematic diagram of the first auxiliary component and mounting rod structure of the present invention;

[0029] Figure 7 This is the present invention. Figure 6 A magnified structural diagram of B in the diagram;

[0030] Figure 8 This is a schematic diagram of the opening and closing assembly and mounting rod structure of the present invention;

[0031] Figure 9 This is the present invention. Figure 8 A magnified structural diagram of C;

[0032] Figure 10 is a schematic view of a second auxiliary assembly, a rotating rod and a circular scraper structure of the present application.

[0033] The reference signs involved in the above drawings are as follows: 1, a machine body; 2, a cover plate; 3, a cleaning mechanism; 31, a cleaning and scraping assembly; 311, a servo motor; 312, a sliding groove; 313, a mounting rod; 314, a cylindrical shaft; 315, an arc-shaped scraper; 316, a threaded rod; 32, a collecting assembly; 321, a circular scraper; 322, a rotating rod; 323, a second gear; 324, a first gear; 4, a drafting roller; 5, a storage box; 6, an auxiliary mechanism; 61, a first auxiliary assembly; 611, a first limiting rod; 612, a connecting frame; 613, a first baffle; 614, a connecting piece; 62, an opening and closing assembly; 621, a first limiting plate; 622, a second limiting plate; 623, a second limiting rod; 624, a second baffle; 625, a limiting block; 63, a second auxiliary assembly; 631, a fixed block; 632, a fixed plate; 7, a connecting seat. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0035] The implementation of the present application is described in detail below in combination with specific examples.

[0036] Example 1

[0037] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 , the equipment for preparing super-draft tight core yarn includes a machine body 1 and a drafting roller 4 arranged inside the machine body 1 for drafting the core yarn, characterized in that it further includes a cleaning mechanism 3 for cleaning the short-fiber impurities generated during the processing of the core yarn and an auxiliary mechanism 6 for disassembling and assembling the cleaning mechanism 3.

[0038] Please see Figure 3 , Figure 4 and Figure 5 , the cleaning mechanism 3 includes a cleaning and scraping assembly 31 arranged inside the machine body 1 for cleaning the surface of the drafting roller 4 and a collecting assembly 32 linked with the cleaning and scraping assembly 31 for cleaning the short fibers of the core yarn accumulated on the surface of the cleaning and scraping assembly 31.

[0039] Please see Figure 3 and Figure 4The cleaning assembly 31 comprises an arc-shaped scraper 315 for cleaning the surface of the drafting roller 4, a mounting rod 313 in sliding connection with the inner side of the machine body 1, a servo motor 311, and sliding grooves 312 opened on both sides of the inner side of the machine body 1, wherein the inner sides of the sliding grooves 312 are respectively provided with sliding blocks, the left sliding block is fixedly connected with the left end of the mounting rod 313, the output shaft of the servo motor 311 is fixedly provided with a threaded rod 316 extending into the left sliding groove 312 through a shaft coupling, one end of the threaded rod 316 located in the left sliding groove 312 is in threaded connection with the left sliding block, the side wall of the threaded rod 316 is in transmission connection with the first gear 324 through a bevel gear, and the concave surface of the arc-shaped scraper 315 is in close contact with the surface of the drafting roller 4, so that the short fibers and other impurities on the surface of the drafting roller 4 can be conveniently cleaned.

[0040] In specific implementation, the servo motor 311 is started to drive the threaded rod 316 to rotate through the shaft coupling, the threaded rod 316 drives the left sliding block to move along the left sliding groove 312 while rotating, the left sliding block drives the mounting rod 313 to move, and the mounting rod 313 drives the arc-shaped scraper 315 to clean the drafting roller 4 during operation, so that the short fibers and other impurities attached to the surface of the drafting roller 4 are scraped off, and the accumulation of the short fibers and other impurities is avoided to affect the processing quality of the core yarn. The mounting rod 313 drives the arc-shaped scraper 315 to move while driving the right sliding block to move along the right sliding groove 312 and the cylindrical shaft 314 through the opening and closing assembly 62, so as to improve the stability of the movement of the mounting rod 313 and the cleaning stability of the arc-shaped scraper 315.

[0041] Please see Figure 4 and Figure 5 The collecting assembly 32 comprises a rotating rod 322 in rotating connection with the top of the machine body 1, a circular scraper 321 arranged on the side wall of the rotating rod 322, and a first gear 324 in transmission connection with the rotating rod 322, the collecting assembly 32 further comprises a second gear 323 fixedly sleeved on the side wall of the rotating rod 322, the second gear 323 and the first gear 324 are in transmission connection through a chain, the side wall of the threaded rod 316 is fixedly sleeved with a first bevel gear, the outer side wall of the machine body 1 is rotatably connected with a rotating shaft, one end of the side wall of the rotating shaft is fixedly sleeved with a second bevel gear in meshing connection with the first bevel gear, and the inner wall of the first gear 324 is fixedly sleeved on the other end of the side wall of the rotating shaft.

[0042] Please see Figure 2 and Figure 3 The bottom inner wall of the machine body 1 and located at the bottom of the circular scraper 321 is provided with a storage box 5, the top of the storage box 5 is designed in an open manner, and the front of the machine body 1 is hingedly connected with a cover plate 2.

[0043] In the embodiment, the threaded rod 316 rotates to drive the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the first gear 324 to rotate through the rotating shaft, the first gear 324 drives the second gear 323 to rotate through the chain, the second gear 323 drives the rotating rod 322 to rotate, and the rotating rod 322 drives the circular scraper 321 to rotate, so that when the arc-shaped scraper 315 moves to the bottom of the circular scraper 321, the rotating circular scraper 321 scrapes the inner recess of the arc-shaped scraper 315, thereby scraping the short fibers and other impurities accumulated in the inner recess of the arc-shaped scraper 315, which is beneficial to keep the arc-shaped scraper 315 clean, thereby facilitating the scraping effect of the arc-shaped scraper 315 on the drafting roller 4, facilitating long-term use, and the short fibers and other impurities scraped by the circular scraper 321 fall into the storage box 5 in the machine body 1, facilitating collection, and after a certain amount or time, the cover plate 2 is opened to take out the storage box 5, facilitating pouring out the short fibers and other impurities in the storage box 5.

[0044] The diameter of the side wall of the circular scraper 321 is the same as the diameter of the inner wall of the arc-shaped scraper 315, and when the arc-shaped scraper 315 moves to directly below the circular scraper 321, the center of the circular scraper 321 is horizontal with the top of the arc-shaped scraper 315, ensuring the scraping effect of the circular scraper 321 on the arc-shaped scraper 315, and the positions of the drafting roller 4, the arc-shaped scraper 315 and the circular scraper 321 correspond to each other, ensuring normal operation of the scraping and collection of short fibers and other impurities.

[0045] Example Two

[0046] Please see Figure 4 The auxiliary mechanism 6 includes a first auxiliary assembly 61 for disassembling and assembling the arc-shaped scraper 315, an opening and closing assembly 62 for assisting the first auxiliary assembly 61 in disassembling and assembling the arc-shaped scraper 315, and a second auxiliary assembly 63 for disassembling and assembling the circular scraper 321.

[0047] Please see Figure 8 and Figure 9The opening and closing assembly 62 comprises a first limiting plate 621 fixedly connected with the right slider, a second limiting plate 622, a limiting block 625 fixedly arranged at the top of the second limiting plate 622, and a second limiting rod 623 sleeved at the right end of the mounting rod 313. The inner right end of the mounting rod 313 is provided with a second limiting groove, a third limiting groove and a fourth limiting groove. The inner wall of the second limiting groove is matched with the side wall of the limiting block 625. The inner portion of the fourth limiting groove is matched with the side wall of the second limiting plate 622. The side wall of one end of the second limiting rod 623 located in the third limiting groove is fixedly sleeved with a second baffle 624. The side wall of the second limiting rod 623 and located to the right of the baffle is sleeved with a second spring. The right end of the mounting rod 313 is provided with a fifth limiting groove sleeving the second limiting rod 623 and extending to the left inner wall of the second limiting groove. The side wall of the limiting block 625 is provided with a second limiting hole sleeving the second limiting rod 623. The side of the first limiting plate 621 and the second limiting plate 622 away from each other is fixedly connected. The side of the first limiting plate 621 away from the second limiting plate 622 is arc-shaped. The length of the first limiting plate 621 and the second limiting plate 622 is greater than the length of the connecting piece 614, facilitating the installation of the connecting piece 614.

[0048] In specific implementation, the machine body 1 is opened. The second limiting rod 623 is moved along the fifth limiting groove. At the same time, the second limiting rod 623 is pressed by the second baffle 624 to move in the third limiting groove, so that the second limiting rod 623 is separated from the second limiting groove. That is, the limiting block 625 and the second limiting plate 622 are separated from the second limiting groove and the fourth limiting groove respectively. The mounting rod 313 is continuously moved through the cleaning scraper assembly 31, so that the first auxiliary assembly 61 is installed at the right end of the mounting rod 313, and then the arc-shaped scraper 315 is installed, facilitating the disassembly and assembly of the arc-shaped scraper 315 and the adjustment of the number of the arc-shaped scrapers 315, and being suitable for different numbers of drafting rollers 4.

[0049] Please see Figure 6 and Figure 7 The first auxiliary assembly 61 comprises a connecting piece 614 sleeved at the side wall of the mounting rod 313, a connecting frame 612 fixedly arranged at the bottom of the connecting piece 614, and a first limiting rod 611 sleeved at the bottom of the connecting frame 612 and extending into the mounting rod 313. The side wall of the first limiting rod 611 is fixedly sleeved with a first baffle 613. The side wall of the first limiting rod 611 and located at the bottom of the first baffle 613 is sleeved with a first spring. The top of the connecting piece 614 is fixedly connected with the bottom of the arc-shaped scraper 315. The outer wall bottom of the connecting piece 614 is provided with a first limiting hole sleeving the first limiting rod 611. The side wall bottom of the mounting rod 313 is provided with a first limiting groove arranged in a rectangular array and matched with the side wall of the first limiting rod 611.

[0050] In the embodiment, after disconnecting the opening and closing assembly 62, the handle at the bottom end of the first limiting rod 611 is pulled to pull the first limiting rod 611, so that the first limiting rod 611 is disengaged from the first limiting groove, and the connecting piece 614 is moved along the side wall of the mounting rod 313, so that the arc-shaped scraper 315 is conveniently disassembled and assembled.

[0051] Please see Figure 10 The second auxiliary assembly 63 comprises fixing blocks 631 fixedly sleeved on the side wall of the rotating rod 322 and arranged in a rectangular array and fixing plates 632 fixedly arranged on both sides of the circular scraper 321, and the side wall of the circular scraper 321 is provided with a through groove sleeving the fixing block 631, and the fixing plate 632 is fixedly connected with the fixing block 631 through a screw.

[0052] The top of the machine body 1 is provided with a connecting seat 7 on both sides through a screw, one end of the rotating rod 322 is rotationally connected with the inner wall of one of the connecting seats 7, and the other end of the rotating rod 322 is sleeved in the other connecting seat 7.

[0053] In the embodiment, the connecting seat 7 sleeving the rotating rod 322 is first disassembled, the circular scraper 321 is sleeved on the side wall of the fixing block 631 along the rotating rod 322 through the through groove, and the screw is used to fix the fixing plate 632 and the fixing block 631, so that the circular scraper 321 is disassembled and assembled.

[0054] The electronic devices such as the servo motor 311 in the application are connected with an external power supply and a controller, so that the actual control use is facilitated.

[0055] The spinning process of the equipment for preparing the super-large-drafting compact core yarn comprises the following steps of:

[0056] S1: the core yarn needing to be drafted is introduced into the machine body 1 through the feeding port on one side of the machine body 1, and is drafted by the drafting roller 4 in the machine body 1, and the drafted core yarn is discharged out of the machine body 1 through the discharging port on the other side of the machine body 1 to perform other spinning operations;

[0057] S2: when the drafting roller 4 drafts the core yarn, the short fibers and other impurities attached to the surface of the drafting roller 4 are cleaned by the cleaning and scraping assembly 31, and the short fibers and other impurities remaining and accumulated on the cleaning and scraping assembly 31 are cleaned and collected by the collecting assembly 32;

[0058] S3: the circular scraper 321 and the arc-shaped scraper 315 are disassembled and assembled by the auxiliary mechanism 6 for later maintenance and replacement, and the number of the arc-shaped scraper 315 and the circular scraper 321 can be adjusted according to the number of the drafting roller 4 to clean the drafting roller 4.

[0059] The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the present application, it is understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationships in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present patent, for those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0060] Referring to Figures 1-10 The preferred embodiments provided by the present application are shown.

[0061] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An apparatus for producing an ultra-high draft compact core-spun yarn comprising a machine body and draft rollers arranged inside the machine body for drafting the core-spun yarn, characterized in that, The cleaning mechanism is used for cleaning the short-fiber impurities generated in the core-spun yarn processing, and the auxiliary mechanism is used for disassembling and assembling the cleaning mechanism; The cleaning mechanism comprises a cleaning scraper assembly arranged on the inner side of the machine body for cleaning the surface of the drafting roller and a collecting assembly connected with the cleaning scraper assembly for cleaning the short fibers of the core-spun yarn accumulated on the surface of the cleaning scraper assembly, the collecting assembly comprises a rotating rod rotatably connected with the top of the machine body, a circular scraper plate arranged on the side wall of the rotating rod, and a first gear in transmission connection with the rotating rod; The cleaning scraper assembly comprises an arc-shaped scraper plate for cleaning the surface of the drafting roller, a mounting rod in sliding connection with the inner side of the machine body, a servo motor, and a sliding groove opened on both sides of the inner side of the machine body, the inner side of the sliding groove is provided with a sliding block, the left end of the mounting rod is fixedly connected with the left sliding block away from the left sliding groove, the output shaft of the servo motor is fixedly provided with a threaded rod extending into the left sliding groove through a shaft coupling, one end of the threaded rod located in the left sliding groove is in threaded connection with the left sliding block, the side wall of the threaded rod is in transmission connection with the first gear through a bevel gear, the cleaning scraper assembly further comprises a cylindrical shaft fixedly arranged in the right sliding groove, and the sliding block in the right sliding groove is sleeved on the side wall of the cylindrical shaft; The collecting assembly further comprises a second gear fixedly sleeved on the side wall of the rotating rod, the second gear and the first gear are in transmission connection through a chain, the side wall of the threaded rod is fixedly sleeved with a first bevel gear, the outer side wall of the machine body is rotatably connected with a rotating shaft, the side wall of the rotating shaft is fixedly sleeved with a second bevel gear engaged with the first bevel gear, and the inner wall of the first gear is fixedly sleeved on the other end side wall of the rotating shaft; The auxiliary mechanism comprises a first auxiliary assembly for disassembling and assembling the arc-shaped scraper plate, an opening and closing assembly for assisting the first auxiliary assembly in disassembling and assembling the arc-shaped scraper plate, and a second auxiliary assembly for disassembling and assembling the circular scraper plate; The first auxiliary assembly comprises a connecting piece sleeved on the side wall of the mounting rod, a connecting frame fixedly arranged at the bottom of the connecting piece, and a first limiting rod sleeved on the bottom of the connecting frame and extending into the mounting rod, the side wall of the first limiting rod is fixedly sleeved with a first baffle, the side wall of the first limiting rod and located at the bottom of the first baffle is sleeved with a first spring, the top of the connecting piece is fixedly connected with the bottom of the arc-shaped scraper plate, the outer wall bottom of the connecting piece is provided with a first limiting hole sleeved with the first limiting rod, and the side wall bottom of the mounting rod is provided with a first limiting groove arranged in a rectangular array and matched with the side wall of the first limiting rod.

2. The apparatus for producing an ultra-draft compact core yarn according to claim 1, wherein The opening and closing assembly comprises a first limiting plate fixedly connected with the right slider, a second limiting plate, a limiting block fixedly arranged at the top of the second limiting plate and a second limiting rod sleeved at the right end of the mounting rod, the internal right end of the mounting rod is provided with a second limiting groove, a third limiting groove and a fourth limiting groove, the inner wall of the second limiting groove is matched with the side wall of the limiting block, the inner part of the fourth limiting groove is matched with the side wall of the second limiting plate, the side wall of one end of the second limiting rod located in the third limiting groove is fixedly sleeved with a second baffle, the side wall of the second limiting rod located at the right side of the baffle is sleeved with a second spring, the right end of the mounting rod is provided with a fifth limiting groove sleeving the second limiting rod and extending to the left inner wall of the second limiting groove, the side wall of the limiting block is provided with a second limiting hole sleeving the second limiting rod, the side of the first limiting plate away from the second limiting plate is arc-shaped.

3. The apparatus for producing an ultra-high draft compact core yarn according to claim 1, wherein, The second auxiliary assembly comprises fixed blocks fixedly sleeved on the side walls of the rotating rods and arranged in a rectangular array, and fixed plates fixedly arranged on both sides of the circular scraper, the side wall of the circular scraper is provided with a through groove sleeving the fixed block, and the fixed plate and the fixed block are fixedly connected through screws.

4. The apparatus for producing an ultra-draft compact core yarn according to claim 3, wherein The top of the machine body is fixedly provided with a connecting seat on both sides through screws, one end of the rotating rod is rotatably connected with the inner wall of one of the connecting seats, and the other end of the rotating rod is sleeved in the other connecting seat.

5. The apparatus for producing an ultra-high draft compact core yarn according to claim 1, wherein The bottom inner wall of the machine body and located at the bottom of the circular scraper is provided with a storage box, the top of the storage box is designed in an open manner, and the front of the machine body is hingedly provided with a cover plate.

6. Spinning process for the preparation of a device for superdrawn compact core yarn, characterized by, The equipment for preparing the super-drawing compact core yarn of claim 1, and the spinning process comprises the following steps: S1: introducing the core yarn to be drawn into the machine body through the feed port on one side of the machine body, and drawing the core yarn by the drawing roller in the machine body, and discharging the drawn core yarn out of the machine body through the discharge port on the other side of the machine body for other spinning operations; S2: when the drawing roller draws the core yarn, the short fibers and other impurities attached to the surface of the drawing roller are cleaned by the cleaning and scraping assembly, and the short fibers and other impurities accumulated on the cleaning and scraping assembly are cleaned and collected by the collecting assembly; S3: the circular scraper and the arc-shaped scraper are disassembled by the auxiliary mechanism for later maintenance and replacement, and the number of the arc-shaped scrapers and the circular scrapers can be adjusted according to the number of the drawing rollers for cleaning different numbers of drawing rollers.

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