Textile yarn sizing machine

By employing a reverse parallel flow and honeycomb rectifier design, the problem of yarn hair and impurities accumulating in the sizing machine is solved, achieving uniform adhesion of the yarn surface and purification of the sizing solution, thereby improving the quality of the weaving process and the efficiency of the equipment.

CN121575562APending Publication Date: 2026-02-27ANHUI YUHUA TEXTILE
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202512025875.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-30
Publication Date
2026-02-27

AI Technical Summary

Technical Problem

During the impregnation process, existing sizing machines can easily wash fuzz and impurities from the yarn surface into the sizing solution, forming suspended contaminants that affect fabric quality and degrade the performance of the sizing solution.

Method used

The sizing machine adopts a counter-parallel flow design, which generates fluid shear force through the counter-flow of yarn and sizing liquid. Combined with a honeycomb rectifier plate and an adjustable slit nozzle, it achieves the smoothing of yarn hairs and the removal of impurities. A filter screen is installed in the sizing liquid circulation system for purification.

Benefits of technology

It achieves uniform adhesion of yarn surface fuzz and effective removal of impurities, improves fabric quality, delays sizing degradation, and reduces cleaning frequency and maintenance costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121575562A_ABST
    Figure CN121575562A_ABST
Patent Text Reader

Abstract

The invention relates to the technical field of sizing machines, in particular to a textile yarn sizing machine which comprises a rack and a plurality of warp rollers rotationally arranged on the rack and used for conveying warp layers. The slurry circulating system comprises a slurry storage tank located on the lower portion, a sizing tank located on the upper portion and a circulating pump used for pumping slurry from the slurry storage tank to the sizing tank, a slurry outlet which is communicated with the interior of the sizing tank and obliquely extends downwards is formed in the lower portion of the side wall of the sizing tank, the inlet end of the slurry outlet is communicated with the sizing tank, and the outlet end of the slurry outlet is communicated with the sizing tank. By means of reverse parallel flow of the yarn and the size, active and continuous fluid shear force is generated, yarn hairiness can be scoured and attached to the surface of the yarn, the dynamic attaching mode is more uniform than mechanical extrusion after static soaking, and the excellent warp with less hairiness and smooth surface is provided for follow-up weaving.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sizing machine, in particular to a textile yarn sizing machine. BACKGROUND

[0002] Sizing is an indispensable key preparation process before textile weaving, its purpose is to form a layer of strong and smooth sizing film on the surface of warp yarn, to improve the strength, wear resistance and hair adhesion of yarn, so as to significantly reduce the breakage rate in the subsequent weaving process, protect the quality of fabric, at present, the widely used sizing machine in the industry is mainly based on the classic "immersion-pressing" process principle, its typical process is: the warp yarn sheet is immersed in the sizing tank containing sizing liquid, after absorbing the sizing liquid by the immersion roller and the sizing roller, the excess sizing liquid is squeezed out, the sizing rate is controlled and the sizing film is initially formed through the intense extrusion of a pair of high-pressure sizing rollers composed of rubber and metal, and finally dried and solidified in the drying room.

[0003] In the prior art, the adhesion of hair mainly depends on the adhesion and covering effect of sizing liquid and the mechanical extrusion of the subsequent sizing roller, when the yarn is immersed in the sizing tank, the loose hair, short fibers and spinning oil on the surface of the yarn are easily washed into the sizing liquid as suspended pollutants, these pollutants accumulate in the sizing liquid circulation system, which not only may re-adhere to the surface of the yarn to form defects and affect the quality of the cloth, but also deteriorate the performance stability of the sizing liquid itself, therefore, we propose a textile yarn sizing machine. SUMMARY

[0004] To solve the above technical problems, the present application provides a textile yarn sizing machine, which comprises a rack and a plurality of warp rollers for conveying warp layers rotatably arranged on the rack, a sizing liquid circulation system is arranged on the rack, the sizing liquid circulation system comprises a sizing liquid storage tank located at the lower part, a sizing tank located at the upper part, and a circulating pump for pumping sizing liquid from the sizing liquid storage tank to the sizing tank;

[0005] A sizing outlet inclined downward is arranged on the lower part of the side wall of the sizing tank and communicates with the inside of the sizing tank, the inlet end of the sizing outlet communicates with the sizing tank, an adjustable slit nozzle for adjusting the sizing liquid outflow section is arranged at the outlet end of the sizing outlet, and a flow regulating assembly is arranged in the sizing outlet, and the outlet end of the sizing outlet is also connected with a sizing flow channel which has the same inclination direction as the sizing outlet.

[0006] A plurality of guide rollers are arranged above the sizing liquid storage tank, the warp layer is configured to enter from below the sizing flow channel in a posture parallel to the extension direction of the sizing flow channel under the guidance of the guide rollers, and flow countercurrently through the sizing flow channel in a direction opposite to the flow direction of the sizing liquid flowing out of the adjustable slit nozzle.

[0007] In some embodiments, a passive guide roller is arranged in the inlet end of the sizing flow channel to guide the sized warp yarn layer out of the sizing flow, and the diameter D of the passive guide roller and the height H of the sizing flow channel satisfy: D ≤ H / 5.

[0008] In some embodiments, the rectifying assembly comprises a plurality of honeycomb rectifying plates arranged in the sizing outlet, and the aperture of each of the honeycomb rectifying plates gradually decreases along the direction of sizing flow.

[0009] In some embodiments, the adjustable slit nozzle comprises a plurality of adjusting plates movably arranged above the outlet end of the sizing outlet, a sealing pad is connected between adjacent adjusting plates, a flexible connecting strip is collectively connected to the back sides of the plurality of adjusting plates, the flexible connecting strip is fixedly connected to the sizing outlet, and a fine adjustment assembly for adjusting the opening width of each adjusting plate is arranged on the sizing outlet.

[0010] In some embodiments, dovetail grooves for installing the sealing pad are arranged on both sides of the adjusting plate, the sealing pad is in a long strip structure, dovetail-shaped protrusions are formed on both sides of the sealing pad, and a plate-shaped body is arranged in the middle of the sealing pad. When the sealing pad is installed in place, the thickness of the plate-shaped body is equal to the designed installation gap between the side surfaces of adjacent two adjusting plates.

[0011] In some embodiments, the fine adjustment assembly comprises a comb-shaped plate fixedly arranged on the upper surface of the sizing outlet, the comb-shaped plate has a plurality of comb teeth arranged in an array along the width direction of the sizing outlet, a fine adjustment screw is threadedly arranged on each comb tooth, and the bottom end of each fine adjustment screw is rotatably connected to each adjusting plate, so that each fine adjustment screw can independently adjust the height of the adjusting plate connected thereto.

[0012] In some embodiments, a plurality of flow sensors are embedded in the bottom of the sizing flow channel, and each flow sensor is arranged in the corresponding area of each adjusting plate. The sensing end surface of each flow sensor is flush with the bottom surface of the sizing flow channel.

[0013] In some embodiments, a filter screen is fixedly installed on the inner side wall of the sizing storage tank, and the filter screen is located at the sizing flow outlet end of the sizing flow channel.

[0014] In some embodiments, a pair of sizing rollers is further arranged above the yarn layer guide-out position of the sizing flow channel, the two sizing rollers are pressed together to form a sizing area through which the yarn layer passes, and a baffle is arranged at the top end of the sizing flow channel. The baffle can receive excess sizing liquid squeezed out from the sizing area and guide the excess sizing liquid back to the sizing storage tank.

[0015] In some embodiments, two honeycomb straightening plates are provided, the channel hole diameter of the first stage honeycomb straightening plate is 5-7mm, and the channel hole diameter of the second stage honeycomb straightening plate is 3-4mm.

[0016] The present application has at least the following advantages:

[0017] 1. By the reverse parallel flow of yarn and sizing liquid, active and continuous fluid shear force is generated, which can flush and lay the yarn hair on the yarn surface. This dynamic laying method is more uniform than mechanical extrusion after static immersion, and provides excellent warp yarn with less hair and smooth surface for subsequent weaving.

[0018] 2. The reverse flow sizing itself has a flushing effect, which can continuously remove impurities on the surface of the yarn. At the same time, a filter screen is provided on the sizing liquid return path of the system, which can effectively intercept and remove fiber scraps and colloidal particles in the circulation. This flushing assisted static filtering method delays the deterioration of sizing liquid, reduces the generation of sizing spot defects, and reduces the cleaning frequency and maintenance cost of the sizing tank. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0020] Figure 2 It is another schematic diagram of the structure of the present application;

[0021] Figure 3 It is a schematic diagram of the side view structure of the sizing tank of the present application;

[0022] Figure 4 It is another schematic diagram of the structure of the present application; Figure 3

[0023] Figure 5 It is a schematic diagram of the structure of the sizing tank and the sizing outlet of the present application;

[0024] Figure 6 It is a schematic diagram of the structure of the sizing tank and the sizing outlet of the present application; Figure 5

[0025] Figure 7 It is a schematic diagram of the structure of the sizing tank and the sizing outlet of the present application;

[0026] Figure 8 It is a schematic diagram of the structure of the sizing tank and the sizing outlet of the present application;

[0027] Figure 9 It is a schematic diagram of the structure of the sizing tank and the sizing outlet of the present application;

[0028] ​​In the figure: 1, frame; 2, warp roller; 3, slurry storage tank; 4, sizing tank; 5, slurry outlet; 6, adjustable slit nozzle; 61, adjusting plate; 611, dovetail groove; 62, gasket; 621, dovetail-shaped protrusion; 622, plate-shaped body; 63, flexible connecting strip; 7, rectifier assembly; 71, honeycomb rectifier plate; 8, sizing flow channel; 9, guide roller; 10, fine adjustment assembly; 100, warp layer; 101, comb plate; 102, comb teeth; 103, fine adjustment screw; 11, flow sensor; 12, filter screen; 13, sizing roller; 14, baffle. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0030] Embodiment: Please refer to Figures 1-9 The present application provides a technical solution: a textile yarn sizing machine, comprising a frame 1 and a plurality of warp rollers 2 for conveying a warp layer 100, which are rotatably arranged on the frame 1. The frame 1 is provided with a sizing liquid circulating system, which comprises a slurry storage tank 3 located at the lower part, a sizing tank 4 located at the upper part, and a circulating pump for pumping sizing liquid from the slurry storage tank 3 to the sizing tank 4. The slurry storage tank 3 is fixedly arranged on the frame 1, and the sizing tank 4 is fixedly arranged above the slurry storage tank 3 by a support. The circulating pump can make the sizing liquid circulate in the slurry storage tank 3 and the sizing tank 4. The circulating system contains a filtering component. Structures similar to the filtering component arranged in the circulating system are conventional in the field, and their structures will not be described here. Through this circulating design, the sizing liquid in the sizing tank 4 is free of impurities, thereby improving the sizing effect.

[0031] The lower part of the side wall of the sizing tank 4 is provided with a sizing outlet 5 which communicates with the inside of the sizing tank 4 and extends downwardly and obliquely, the inlet end of the sizing outlet 5 communicates with the sizing tank 4, the outlet end of the sizing outlet 5 is provided with an adjustable slit nozzle 6 for adjusting the sizing liquid flow section, and a flow regulating assembly 7 is arranged in the sizing outlet 5, and the outlet end of the sizing outlet 5 is also connected with a sizing flow channel 8 which has the same oblique direction, the obliquely downward sizing outlet 5 can make the sizing liquid flow stably under the action of gravity, the flow regulating assembly 7 can regulate the flow of the sizing liquid, because the sizing liquid in the sizing tank 4 is pumped to flow in the sizing tank 4, and then disturbs the sizing liquid flowing out of the sizing outlet 5, if not regulated, it will cause uneven sizing of the yarn, therefore, the flow regulating assembly 7 can play a key role in stabilizing the sizing liquid flow, the sizing flow channel 8 communicates with the sizing outlet 5 and has the same extension direction, and the sizing liquid flow is constrained in the sizing flow channel 8, the yarn completes the sizing in the sizing flow channel 8, and the sizing flow channel 8 provides a stable working cavity for the sizing process;

[0032] A plurality of guide rollers 9 are arranged above the sizing tank 3, the path of the warp yarn layer 100 is configured as follows: under the guidance of the guide rollers 9, the warp yarn layer 100 enters from below the sizing flow channel 8 in a posture parallel to the extension direction of the sizing flow channel 8, and flows through the sizing flow channel 8 in the opposite direction of the flow direction of the sizing liquid flowing out of the adjustable slit nozzle 6, a plurality of guide rollers 9 are arranged above the sizing tank 3 and on the side of the sizing tank 4, and the local arrangement is shown in Figure 3 The guide rollers 9 guide the warp yarn layer 100 to align with the geometric center line of the sizing flow channel 8, and ensure the accuracy of the entering angle of the warp yarn layer 100, when the yarn flows upwardly, the sizing liquid continuously impacting the surface of the yarn can generate fluid shear force, which can press the hair on the yarn body down and adhere to the yarn body, at the same time, the reverse flow enhances the penetration driving force of the sizing liquid to the internal fiber bundle of the yarn, because the flow pressure helps to overcome the capillary resistance and push the sizing liquid into the yarn, in addition, this reverse flushing action can also carry away part of the loose impurities and short fibers attached to the surface of the yarn, realizing the real-time cleaning effect of the sizing process.

[0033] A passive yarn guide 9 is arranged at the inlet end of the sizing flow channel 8 to guide the sized warp layer 100 out of the sizing flow, and the diameter D of the passive yarn guide 9 and the height H of the sizing flow channel 8 satisfy the relationship D ≤ H / 5. When this ratio is satisfied, the volume fraction of the yarn guide 9 in the flow channel is small enough to form a sizing liquid annular gap around the yarn guide 9, which on the one hand ensures that the main part of the reverse sizing flow can pass smoothly, reducing disturbance to the sizing flow, and on the other hand, the small diameter of the yarn guide 9 also helps to reduce the yarn wrapping angle, friction and tension fluctuation. Preferably, the ratio of D to H is 1:6 to 1:10. For example, in one embodiment, the effective height H of the flow channel is 60 mm, and the diameter D of the yarn guide 9 is 10 mm, the ratio is 1:6. The surface of the yarn guide 9 is highly polished and plated with a hard chromium layer or coated with a Teflon coating to ensure that it is smooth, wear-resistant and does not stick to sizing liquid, thereby minimizing friction damage and tension interference on the yarn when guiding the yarn to change direction.

[0034] The rectifying assembly 7 includes a plurality of honeycomb rectifying plates 71 arranged in the sizing outlet 5, and the pore size of each honeycomb rectifying plate 71 gradually decreases along the direction of the sizing flow. This multi-stage tapered rectifying structure can form a laminar flow generator. The first stage or the first few stages of the honeycomb plate have a larger pore size, which mainly functions to break up large-scale turbulence and vortices from the pumping system, converting flow energy into a more uniform pressure distribution. The last stage or the last few stages of the honeycomb plate have a smaller pore size, which is responsible for combing the sizing liquid and eliminating small vortices, so that the sizing liquid flowing out of the honeycomb plate presents a stable laminar flow state on a macroscopic scale, and the lateral distribution uniformity of the sizing flow is improved.

[0035] The adjustable slit nozzle 6 includes a plurality of adjustment plates 61 movably arranged above the outlet end of the sizing outlet 5, and a sealing gasket 62 is connected between adjacent adjustment plates 61. A flexible connecting strip 63 is connected to the back side of the plurality of adjustment plates 61, and the flexible connecting strip 63 is fixedly connected to the sizing outlet 5. The sizing outlet 5 is provided with a fine adjustment assembly 10 for adjusting the opening width of each adjustment plate 61. The adjustment plate 61 is usually made of stainless steel or surface-hardened aluminum alloy, which has high rigidity and low thermal expansion coefficient. The adjustment plates 61 are arranged side by side, and the upper edges of the adjustment plates 61 collectively form the variable outlet of the adjustable slit nozzle 6. The flexible connecting strip 63 is a thin sheet of metal or high molecular composite material with excellent elastic recovery performance. Its function is to provide a unified elastic support reference surface for the adjustment plates 61, and to allow each adjustment plate 61 to independently move up and down within a certain range without interfering with each other. In this embodiment, the flexible connecting strip 63 can be made of spring steel. When an acting force is applied to a certain adjustment plate 61 through the fine adjustment assembly 10, the flexible connecting strip 63 elastically deforms at the corresponding position, causing the plate to move. After the acting force is removed, the elasticity of the connecting strip allows the plate to return to the vicinity of the reference position, ensuring the repeatability and stability of the system.

[0036] The regulating plate 61 is provided with dovetail grooves 611 on both sides for installing the sealing gasket 62, the sealing gasket 62 is in a long strip structure, and dovetail-shaped protrusions 621 are formed on both sides of the sealing gasket 62, and the middle part of the sealing gasket 62 is a plate-shaped body 622, when the sealing gasket 62 is installed in place, the thickness of the plate-shaped body 622 is equal to the designed installation gap between the side surfaces of the two adjacent regulating plates 61, the cooperation of the dovetail groove 611 and the protrusion ensures that the sealing gasket 62 can be clamped between the adjacent regulating plates 61 and will not fall off due to the washing of the pulp or vibration, when the plate-shaped body 622 is compressed and installed between the two regulating plates 61, it will be elastically deformed in an appropriate amount, thereby forming a continuous contact pressure on the side surface of the regulating plate 61, realizing static sealing, and when the regulating plate 61 moves up and down due to fine adjustment, the elasticity of the sealing gasket 62 allows it to follow the regulating plate 61 to produce shear deformation, and still can maintain contact sealing, thereby realizing dynamic sealing.

[0037] The fine adjustment assembly 10 includes a comb-shaped plate 101 fixedly arranged on the upper surface of the pulp outlet 5, the comb-shaped plate 101 has a plurality of comb teeth 102 arranged in an array along the width direction of the pulp outlet 5, a fine adjustment screw 103 is threadedly arranged on each comb tooth 102, and the bottom end of each fine adjustment screw 103 is rotationally connected with each regulating plate 61, so that each fine adjustment screw 103 can independently adjust the height of the regulating plate 61 connected therewith, the comb-shaped plate 101 serves as the installation base of the entire fine adjustment assembly 10, the fine adjustment screw 103 adopts a micro division head with high-precision fine threads, and the top end thereof can be configured with a structure convenient for manual or servo motor driving, and the driving structure is a conventional arrangement in the prior art, which will not be described here again, by rotating any fine adjustment screw 103, the operator can independently adjust the lifting of the single regulating plate 61 corresponding to the screw, thereby correcting the local thickness or flow rate of the pulp flow at the corresponding position, and realizing the correction of the transverse distribution in the sizing process.

[0038] A plurality of flow sensors 11 are embedded in the bottom of the sizing flow channel 8, and each flow sensor 11 is arranged in the area corresponding to each regulating plate 61, and the sensing end surface of each flow sensor 11 is flush with the bottom surface of the sizing flow channel 8, in order to obtain local flow rate data, each sensor is arranged near the downstream of the pulp flow corresponding to the corresponding regulating plate 61, and the sensing end surface is flush with the flow channel bottom surface, which can eliminate the flow separation or vortex caused by the protrusion, so that the sensor measures the true local flow velocity, without causing significant interference to the flow field due to its own installation, thereby ensuring the accuracy and reliability of the monitoring data, and the sensor can be selected to be an ultrasonic Doppler type principle which is suitable for pulp, and the signal output thereof is convenient for being read by a data acquisition system.

[0039] A filter screen 12 is fixedly installed on the inner side wall of the sizing tank 3, and is located at the sizing liquid outlet end of the sizing flow channel 8. The filter screen 12 can ensure the cleanliness of the sizing liquid system. After the sizing liquid works in the sizing flow channel 8, the sizing liquid carries a small amount of short fibers, hairiness, glue particles and other impurities separated from the yarn, and flows back to the sizing tank 3 from the end of the sizing flow channel 8. The filter screen 12 is just intercepted on the backflow path, and can effectively filter out these solid impurities, prevent them from accumulating in the sizing tank 3 and entering the sizing system again through the circulating pump, thereby avoiding causing sizing spot defects. The filter screen 12 can be quickly disassembled and cleaned by using a module such as a buckle or a screw for installation, so as to facilitate maintenance.

[0040] A pair of sizing rollers 13 are further arranged above the warp layer 100 outlet position of the sizing flow channel 8. The two sizing rollers 13 are pressed together to form a sizing area through which the warp layer 100 passes. The top end of the sizing flow channel 8 is provided with a baffle 14 which can guide the excess sizing liquid squeezed out of the sizing area back to the sizing tank 3. After the yarn completes the reverse sizing and is guided out of the sizing liquid flow, the yarn immediately passes through the moderate extrusion of the sizing area. The line pressure at this position can be set according to the process requirements. The sizing rollers 13 can squeeze out the excess sizing liquid carried on the surface of the yarn after reverse sizing, control the final sizing rate, and make the sizing liquid more uniformly redistributed between the yarn surface and the internal fibers through mechanical force. In addition, the sizing rollers 13 can further mechanically compact the yarn which has preliminarily adhered to the hairiness, enhance the continuity, smoothness and wrapping property of the sizing film to the fibers, thereby improving the subsequent weavability of the yarn. The sizing liquid still having utilization value squeezed out of the gap between the sizing rollers 13 is collected by the baffle 14 and guided back to the sizing tank 3 through the inclined surface of the baffle 14, realizing the recycling of the sizing liquid, reducing the consumption, and maintaining the cleanliness of the equipment and the working area.

[0041] The honeycomb flow straightener plate 71 is provided with two first-stage honeycomb flow straightener plates 71 and second-stage honeycomb flow straightener plates 71. The channel hole diameter of the first-stage honeycomb flow straightener plate 71 is 5-7 mm, and the channel hole diameter of the second-stage honeycomb flow straightener plate 71 is 3-4 mm. The first-stage flow straightener plate adopts a larger hole diameter, and has good initial flow straightening and pressure balancing effects and is not easy to be blocked. The second-stage flow straightener plate adopts a smaller hole diameter, and performs fine processing on the basis that the flow field has been preliminarily stabilized, and can output highly uniform laminar flow. The spacing between the two plates is usually designed to be 5-10 times the hole diameter, so as to allow the flow field to be properly recovered and developed between the two stages.

[0042] In summary, when the yarn is sized, the yarn passes through the bottom of the sizing flow channel 8 and is guided out of the top of the sizing flow channel 8 through the guide rollers 9. In this process, some impurities on the yarn are washed away, the hairiness on the outer side of the yarn is adhered to the surface of the yarn, and the sizing liquid is penetrated. Finally, the warp layer 100 is guided out of the sizing flow channel 8 by a passive guide roller 9 arranged in the sizing flow channel 8, and enters the subsequent processing stage.

[0043] It has to be noted that, in the present document, the terms "first", "second", etc. merely serve to identify a subject or action, without necessarily requiring or implying any such actual relationship or order between such subjects or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0044] While embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, combinations, and variations of the embodiments can be undertaken without departing from the spirit and scope of the present application, which is defined by the appended claims and their equivalents.

Claims

1. A textile yarn sizing machine, comprising a frame (1) and a plurality of warp rollers (2) rotatably mounted on the frame (1) for conveying warp layers (100), characterized in that: The frame (1) is provided with a slurry circulation system, which includes a slurry storage tank (3) at the bottom, a slurry loading tank (4) at the top, and a circulation pump for pumping slurry from the slurry storage tank (3) to the slurry loading tank (4). The lower side wall of the slurry tank (4) is provided with a slurry outlet (5) that is connected to the interior and extends downward at an angle. The inlet end of the slurry outlet (5) is connected to the slurry tank (4). The outlet end of the slurry outlet (5) is provided with an adjustable slit nozzle (6) for adjusting the slurry outflow cross section. A flow straightening component (7) is provided inside the slurry outlet (5). The outlet end of the slurry outlet (5) is also connected to a slurry flow channel (8) with the same inclination direction. Multiple guide rollers (9) are provided above the slurry storage tank (3). The yarn path of the warp layer (100) is configured such that the warp layer (100) enters from below the slurry channel (8) in a posture parallel to the extension direction of the slurry channel (8) under the guidance of the guide rollers (9), and flows through the slurry channel (8) in the opposite direction to the flow direction of the slurry flowing out from the adjustable slit nozzle (6).

2. The textile yarn sizing machine according to claim 1, characterized in that: A passive yarn guide roller (9) is provided inside the inlet end of the sizing channel (8) to guide the sizing warp layer (100) out of the sizing liquid flow, and the diameter (D) of the passive yarn guide roller (9) and the height (H) of the sizing channel (8) satisfy: D ≤ H / 5.

3. The textile yarn sizing machine according to claim 1, characterized in that: The rectifier assembly (7) includes a plurality of honeycomb rectifier plates (71) disposed in the slurry outlet (5), and the aperture of each honeycomb rectifier plate (71) decreases step by step along the slurry flow direction.

4. The textile yarn sizing machine according to claim 1, characterized in that: The adjustable slit nozzle (6) includes multiple adjusting plates (61) movably disposed above the outlet end of the slurry port (5). A sealing gasket (62) is connected between adjacent adjusting plates (61). A flexible connecting strip (63) is connected to the back side of multiple adjusting plates (61). The flexible connecting strip (63) is fixedly connected to the slurry port (5). A fine-tuning component (10) for adjusting the opening amplitude of each adjusting plate (61) is provided on the slurry port (5).

5. The textile yarn sizing machine according to claim 4, characterized in that: Both sides of the adjusting plate (61) are provided with dovetail grooves (611) for installing sealing gaskets (62). The sealing gasket (62) is a long strip structure with dovetail protrusions (621) on both sides that cooperate with the dovetail grooves (611). The middle part of the sealing gasket (62) is a plate-shaped body (622). When the sealing gasket (62) is installed in place, the thickness of the plate-shaped body (622) is equal to the design installation gap between the sides of two adjacent adjusting plates (61).

6. The textile yarn sizing machine according to claim 4, characterized in that: The fine-tuning component (10) includes a comb plate (101) fixedly disposed on the upper surface of the slurry outlet (5). The comb plate (101) has a plurality of comb teeth (102) arranged in an array along the width direction of the slurry outlet (5). Each comb tooth (102) is threaded with a fine-tuning screw (103). The bottom end of each fine-tuning screw (103) is rotatably connected to each adjusting plate (61) so that each fine-tuning screw (103) can independently adjust the height of the adjusting plate (61) to which it is connected.

7. The textile yarn sizing machine according to claim 4, characterized in that: Multiple flow sensors (11) are embedded in the bottom of the slurry channel (8), and each flow sensor (11) is respectively set in the area corresponding to each adjustment plate (61). The sensing end face of each flow sensor (11) is flush with the bottom surface of the slurry channel (8).

8. The textile yarn sizing machine according to claim 1, characterized in that: A filter screen (12) is fixedly installed on the inner side wall of the slurry storage tank (3), and the filter screen (12) is located at the slurry outlet end of the slurry flow channel (8).

9. The textile yarn sizing machine according to claim 1, characterized in that: Above the warp layer (100) outlet position of the sizing channel (8), a pair of sizing rollers (13) are also provided. The two sizing rollers (13) press against each other to form a sizing zone. The warp layer (100) passes through the sizing zone. A baffle (14) is provided at the top of the sizing channel (8). The baffle (14) can receive the excess sizing liquid squeezed out from the sizing zone and guide it back to the sizing tank (3).

10. The textile yarn sizing machine according to claim 3, characterized in that: Two honeycomb rectifiers (71) are provided. The channel aperture of the first-stage honeycomb rectifier (71) is 5-7mm, and the channel aperture of the second-stage honeycomb rectifier (71) is 3-4mm.