Cloth discharging device of airflow dyeing machine

Abstract

The utility model relates to a cloth discharge device of an airflow dyeing machine, which comprises a rack and two squeeze rollers, the rack is arranged close to the discharge end of an airflow dyeing machine body, the squeeze rollers are slidably sleeved with scraping rings, the scraping rings are used for being in contact with the surfaces of the squeeze rollers, and the rack is connected with a moving assembly. The moving assembly is used for driving the scraping ring to move in the length direction of the extrusion roller. When batting on the surface of the extrusion roller is cleaned, the moving assembly drives the scraping ring to move in the length direction of the extrusion roller, so that the scraping ring pushes the batting on the peripheral side of the extrusion roller to move and make the batting away from the extrusion roller, the batting on the surface of the extrusion roller is reduced, and the influence of the batting on the cloth quality is reduced.

Description

Technical Field

[0001] The present application relates to the field of textile machinery, and in particular to a cloth discharging device of an air flow dyeing machine. Background Art

[0002] Polyester, also known as polyester fiber, is a key synthetic fiber. Its greatest advantages are its excellent wrinkle resistance and shape retention. During polyester production, airflow dyeing machines are commonly used. As highly efficient and energy-efficient textile printing and dyeing equipment, airflow dyeing machines are widely used in the textile industry. They use gas to drive the dye into full contact with the fabric, achieving rapid dyeing speeds and significantly reducing energy consumption and pollution, thereby improving production efficiency and lowering costs. With increasing environmental protection requirements and market demand, airflow dyeing machines must not only ensure high dyeing quality but also possess excellent equipment stability and a high degree of automation to meet the needs of modern industrial upgrades.

[0003] Chinese patent application number CN220550347U discloses a fabric discharge device for an airflow dyeing machine. The device comprises a frame and a squeeze roller assembly rotatably connected to the frame. The squeeze roller assembly comprises a first roller and a second roller arranged vertically, with a gap between the first and second rollers for the fabric to pass through. When the fabric is dyed and discharged, it is squeezed by the squeeze roller assembly to reduce the amount of dye carried by the fabric.

[0004] Regarding the above-mentioned related technologies, it was found during long-term use that, after long-term use, the surface of the extrusion roller is prone to adhesion of lint, which affects the quality and appearance of the final product. Utility Model Content

[0005] In order to reduce the fluff on the surface of the squeezing roller and reduce the impact of the fluff on the quality of the cloth, the present application provides a cloth discharging device for an air flow dyeing machine.

[0006] The cloth discharging device of the airflow dyeing machine provided in this application adopts the following technical solution:

[0007] A cloth discharging device for an air flow dyeing machine comprises a frame and a squeezing roller. The frame is arranged near the discharging end of the air flow dyeing machine body. Two squeezing rollers are provided. A gap is provided between the two squeezing rollers for the cloth to pass through. The squeezing rollers are used to extrude the cloth. The squeezing rollers are both slidably sleeved with a scraper ring. The central axis of the scraper ring is colinear with the central axis of the squeezing roller. The scraper ring is used to contact the surface of the squeezing roller. The frame is connected to a moving component, and the moving component is used to drive the scraper ring to move along the length direction of the squeezing roller.

[0008] By adopting the above technical solution, when in use, the dyed fabric is taken out from the airflow dyeing machine and passes through the gap between the two squeezing rollers. The squeezing rollers squeeze the fabric to reduce the dye solution carried by the fabric. During the squeezing process, the fluff on the surface of the fabric is easily adhered to the surface of the squeezing roller. When cleaning the fluff on the surface of the squeezing roller, the moving component drives the scraper ring to move along the length direction of the squeezing roller, so that the scraper ring pushes the fluff on the side of the squeezing roller to move and move the fluff away from the squeezing roller, thereby reducing the fluff on the surface of the squeezing roller and reducing the impact of the fluff on the quality of the fabric.

[0009] Optionally, the frame is provided with a sliding groove, the length direction of the sliding groove is consistent with the length direction of the extrusion roller, the moving component includes a screw rod, a first motor, and a slider, the length direction of the screw rod is consistent with the length direction of the extrusion roller, the screw rod is rotatably connected in the sliding groove, the first motor is connected to the frame, the output shaft of the first motor is connected to the first screw rod, the slider is threadedly sleeved on the screw rod, the slider is slidably connected in the sliding groove along the length direction of the sliding groove, and the slider is connected to the scraper ring.

[0010] By adopting the above technical solution, the first motor drives the screw to rotate, so that the slider moves along the length direction of the squeezing roller, thereby driving the scraper ring to move along the length direction of the squeezing roller, so that the scraper ring pushes the fluff away from the squeezing roller, reducing the fluff on the surface of the squeezing roller.

[0011] Optionally, a dust suction ring is provided at one end of the squeezing roller, the dust suction ring is connected to the frame, the opening of the dust suction ring is arranged toward the squeezing roller, the frame is connected to an exhaust component, and the exhaust component is used to exhaust air into the dust suction ring.

[0012] By adopting the above technical solution, when cleaning the squeezing roller, the moving component drives the scraper ring to move along the length direction of the squeezing roller, and moves the scraper ring from the end away from the dust suction ring to the end close to the dust suction ring. The scraper ring pushes the fluff close to the dust suction ring. When the scraper ring approaches the dust suction ring, the exhaust component exhausts air in the dust suction ring, so that the dust suction ring is set to a negative pressure, so that the fluff is sucked into the dust suction ring, reducing the fluff on the surface of the squeezing roller and reducing the fluff falling into the surrounding environment and causing pollution.

[0013] Optionally, the scraper ring sleeve is provided with a mounting ring, the central axis of the mounting ring is colinear with the central axis of the extrusion roller, the scraper ring is connected to the mounting ring, the scraper ring includes two scrapers, the scrapers are arranged in an arc-shaped plate, when cleaning the extrusion roller, the scrapers contact the outer circumferential wall of the extrusion roller, the two scrapers are distributed in sequence along the length direction of the extrusion roller, the two scrapers are respectively arranged on both sides of the extrusion roller along the radial direction of the extrusion roller, the two scrapers are in contact with each other on one side, the outer circumferential wall of the scraper in contact with the extrusion roller is larger than the semi-circular circumference of the extrusion roller, the two scrapers are connected to the mounting ring in a radial sliding manner along the extrusion roller, and the scrapers are both connected with a locking member, and the locking member is used to lock the scraper to the mounting ring.

[0014] By adopting the above technical solution, after long-term use, the scraper blade is worn on the side close to the squeezing roller and cannot be pressed tightly against the peripheral side of the squeezing roller. The scraper blade is moved radially along the squeezing roller so that it is pressed tightly against the peripheral side of the squeezing roller, and the scraper blade is locked in the corresponding position through the locking part, thereby improving the cleaning effect of the scraper blade on the squeezing roller.

[0015] Optionally, an annular groove is provided on the inner circumferential wall of the mounting ring, and the circumference of the annular groove is consistent with the circumference of the mounting ring. The scraper is embedded in the annular groove at one end away from the extrusion roller, and the scraper is connected to the annular groove by radial sliding along the extrusion roller. A limiting groove is provided on the side wall of the mounting ring along one side in the length direction of the extrusion roller, and the length direction of the limiting groove is consistent with the radial direction of the extrusion roller. The limiting groove is connected to the annular groove, and the scraper is connected to a limiting block on the side away from the extrusion roller, and the length direction of the limiting block is consistent with the length direction of the extrusion roller. One end of the limiting block is embedded in the limiting groove along its length direction, and the limiting block is connected to the limiting groove by radial sliding along the extrusion roller, and the locking piece is used to lock the limiting block in the limiting groove.

[0016] By adopting the above technical solution, when the scraper moves radially along the squeezing roller, the limit block slides radially along the squeezing roller and is connected in the limit groove, thereby allowing the scraper to move stably in a predetermined direction.

[0017] Optionally, the extrusion roller is connected to a movable block along one end of its length direction, the frame is provided with a movable groove, the length direction of the movable groove is consistent with the vertical direction, the movable block is embedded in the movable groove, the movable block is slidably connected in the movable groove along the vertical direction, the frame is connected to a driving assembly, and the driving assembly is used to drive the two movable blocks to move along the vertical direction and approach or move away from each other.

[0018] By adopting the above technical solution, the driving assembly drives the two moving blocks to move in the vertical direction, the moving blocks are slidably connected in the moving groove along the vertical direction, and the two moving blocks approach or move away from each other, thereby changing the distance between the two squeezing rollers to adapt to fabrics of different thicknesses.

[0019] Optionally, the driving assembly includes a threaded rod and a second motor. The length direction of the threaded rod is consistent with the vertical direction. The threaded rod is rotatably connected to the movable groove. The threaded rod includes a positive thread segment and a negative thread segment. The second motor is connected to the frame. The output shaft of the second motor is connected to the threaded rod. The two movable blocks are respectively threadedly sleeved on the positive thread segment and the negative thread segment.

[0020] By adopting the above technical solution, the second motor drives the threaded rod to rotate, thereby driving the two moving blocks to move in the vertical direction and move closer to or away from each other, thereby facilitating the adjustment of the distance between the two squeezing rollers.

[0021] Optionally, the frame is connected to a recovery box, which is located directly below the squeezing roller. The top of the recovery box is opened, and a first filter plate is connected to the inside of the recovery box.

[0022] By adopting the above technical solution, when the squeezing roller squeezes the cloth, excess dye drips into the recovery box, and the first filter plate filters the dye, thereby reducing lint in the dye, facilitating the recovery of the dye, and minimizing the situation where the dye drips into the surrounding environment and causes pollution.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. When cleaning the fluff on the surface of the squeezing roller, the moving component drives the scraper ring to move along the length direction of the squeezing roller, so that the scraper ring pushes the fluff on the side of the squeezing roller to move and move the fluff away from the squeezing roller, thereby reducing the fluff on the surface of the squeezing roller and reducing the impact of the fluff on the quality of the fabric;

[0025] 2. When cleaning the squeezing roller, the moving assembly drives the scraper ring to move along the length direction of the squeezing roller, and moves the scraper ring from the end away from the dust suction ring to the end close to the dust suction ring. The scraper ring pushes the fluff close to the dust suction ring. When the scraper ring approaches the dust suction ring, the exhaust assembly exhausts air into the dust suction ring, creating a negative pressure inside the dust suction ring, so that the fluff is sucked into the dust suction ring, reducing the fluff on the surface of the squeezing roller and reducing the fluff from falling into the surrounding environment and causing pollution.

[0026] 3. After long-term use, the scraper is worn on the side close to the squeezing roller and cannot be pressed tightly against the circumference of the squeezing roller. Move the scraper along the radial direction of the squeezing roller so that the scraper is pressed tightly against the circumference of the squeezing roller, and lock the scraper in the corresponding position through the locking part to improve the cleaning effect of the scraper on the squeezing roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural diagram of this embodiment.

[0028] Figure 2 It is a top view of this embodiment.

[0029] Figure 3 It is a front view of the mounting ring and the scraper ring in this embodiment.

[0030] Figure 4 3. It is a top view of the mounting ring and the scraper ring in this embodiment.

[0031] Figure 5 This embodiment Figure 4 Cross-sectional view along the AA axis.

[0032] Figure 6 This embodiment Figure 3 Cross-sectional view along the BB direction.

[0033] Figure 7 This embodiment Figure 2 Cross-sectional view along CC direction.

[0034] Figure 8 This embodiment Figure 2 Cross-sectional view along the DD direction.

[0035] Explanation of reference numerals: 100, frame; 110, guide plate; 120, recovery box; 121, first filter plate; 130, moving groove; 140, sliding groove; 200, squeezing roller; 210, moving block; 300, scraper ring; 310, scraper; 320, limit block; 330, bolt; 400, moving assembly; 410, screw rod; 420, first motor; 430, slider; 500, driving assembly ; 510, threaded rod; 511, positive thread section; 512, reverse thread section; 520, second motor; 600, mounting ring; 610, connecting block; 620, ring groove; 630, limit groove; 700, dust suction ring; 800, exhaust assembly; 810, exhaust pump; 820, collection box; 821, second filter plate; 830, exhaust pipe; 840, first pipe; 850, second pipe; 860, third pipe. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-8 This application is described in further detail.

[0037] The embodiment of the present application discloses a cloth discharging device of an air flow dyeing machine. Figure 1 and Figure 2 A cloth discharging device for an airflow dyeing machine includes a frame 100 and a squeeze roller 200. The frame 100 is located on one side of the discharging end of the airflow dyeing machine body. The length direction of the squeeze roller 200 is consistent with the width direction of the cloth. The squeeze roller 200 is rotatably connected to the frame 100. Two squeeze rollers 200 are provided, and the two squeeze rollers 200 are spaced apart in the vertical direction. A gap is provided between the two squeeze rollers 200 for the cloth to pass through. The squeeze rollers 200 are used to squeeze the cloth. Each set of squeeze rollers 200 is provided with a sliding sleeve with a scraper ring 300. The central axis of the scraper ring 300 is collinear with the central axis of the set of squeeze rollers 200, and the inner ring of the scraper ring 300 contacts the outer circumferential wall of the squeeze roller 200. The frame 100 is connected to a moving assembly 400, which is used to drive the scraper ring 300 to move along the length direction of the squeeze roller 200.

[0038] When cleaning the fluff on the surface of the squeezing roller 200, the moving component 400 drives the scraper ring 300 to move along the length direction of the squeezing roller 200, so that the scraper ring 300 pushes the fluff on the surface of the squeezing roller 200, so that the fluff moves away from the squeezing roller 200, thereby reducing the fluff on the surface of the squeezing roller 200 and reducing the impact of the fluff on the quality of the fabric.

[0039] Reference Figure 1 and Figure 2 The frame 100 is connected to a guide plate 110, the length direction of the guide plate 110 is consistent with the length direction of the squeezing roller 200, and one side of the guide plate 110 along its width direction is used to connect with the air flow dyeing machine body, and the other side of the guide plate 110 is tilted downward.

[0040] Reference Figure 1 and Figure 2 The frame 100 is connected to a recovery box 120. The length of the recovery box 120 is aligned with the length of the squeeze roller 200. The recovery box 120 is located directly below the squeeze roller 200. The top of the recovery box 120 is open, and the bottom of the recovery box 120 is connected to a drain pipe. The recovery box 120 is connected to a first filter plate 121. The first filter plate 121 is arranged horizontally and its sides are connected to the inner wall of the recovery box 120. A guide plate 110 is located above the recovery box 120 on the side away from the airflow dyeing machine body. The guide plate 110 is used to guide the dye solution into the recovery box 120.

[0041] Reference Figure 1 The frame 100 is provided with a movable groove 130, the longitudinal direction of which is consistent with the vertical direction. The squeezing roller 200 is connected to a movable block 210 along one end of its longitudinal direction. The squeezing roller 200 is rotatably connected to the movable block 210, and the movable block 210 is embedded in the movable groove 130. The movable block 210 is also slidably connected to the movable groove 130 along the vertical direction.

[0042] Reference Figure 1 , the frame 100 is connected to a drive assembly 500. The drive assembly 500 includes a threaded rod 510 and a second motor 520. The length direction of the threaded rod 510 is consistent with the vertical direction. The threaded rod 510 is rotatably connected to the corresponding inner wall of the movable groove 130 at both ends along its length. The threaded rod 510 includes a positive thread section 511 and a negative thread section 512. One movable block 210 is threadedly sleeved on the positive thread section 511, and the other movable block 210 is threadedly sleeved on the negative thread section 512. The second motor 520 is connected to the frame 100, and the second motor 520 is arranged above the threaded rod 510. The output shaft of the second motor 520 passes through the inner wall of the movable groove 130 downward in the vertical direction, and the output shaft of the second motor 520 is connected to the top of the threaded rod 510.

[0043] The second motor 520 drives the threaded rod 510 to rotate, thereby causing the two moving blocks 210 to move in a vertical direction and move closer to or farther from each other, thereby changing the distance between the two squeezing rollers 200 to adapt to fabrics of different thicknesses.

[0044] Reference Figure 1 and Figure 3The squeezing roller 200 is slidably sleeved with a mounting ring 600, and the central axis of the mounting ring 600 is collinear with the axis of the squeezing roller 200. The mounting ring 600 is sleeved on the scraper ring 300. A connecting block 610 is provided between the two mounting rings 600. The length direction of the connecting block 610 is consistent with the vertical direction. The connecting block 610 connects the two mounting rings 600 at both ends along its length.

[0045] Reference Figure 4 and Figure 5 The inner circumferential wall of the mounting ring 600 is defined by an annular groove 620. The circumference of the annular groove 620 coincides with the circumference of the mounting ring 600, and the depth of the annular groove 620 coincides with the radial direction of the squeezing roller 200. The scraper ring 300 includes two scrapers 310, which are arc-shaped plates. The two scrapers 310 are spaced apart along the length of the squeezing roller 200 and contact each other on the side closest to each other. The two scrapers 310 are respectively located on either side of the squeezing roller 200 along the radial direction of the squeezing roller 200. The inner rings of the scrapers 310 contact the outer circumferential wall of the squeezing roller 200, and the length of contact between the scrapers 310 and the outer circumferential wall of the squeezing roller 200 is greater than half the circumference of the squeezing roller 200. The scrapers 310 are embedded in the annular groove 620 on the side away from the squeezing roller 200 and are slidably connected to the annular groove 620 along the radial direction of the squeezing roller 200. When the scraper 310 cleans the squeezing roller 200 , the inner ring of the scraper 310 contacts the outer circumferential wall of the squeezing roller 200 .

[0046] Reference Figure 3 and Figure 6 Two limiting grooves 630 are defined on the inner wall of the annular groove 620 along one side of the length of the squeezing roller 200. The two limiting grooves 630 are located on both sides of the mounting ring 600 along the radial direction of the mounting ring 600, and the length of the limiting grooves 630 is aligned with the radial direction of the mounting ring 600. The end of the scraper 310 away from the squeezing roller 200 is connected to the limiting block 320, and the length of the limiting block 320 is aligned with the length of the squeezing roller 200. The limit block 320 corresponds to the limit groove 630 one by one. The limit block 320 is embedded in the limit groove 630 along its length direction and away from one end of the scraper 310. The limit block 320 is connected to the limit groove 630 by sliding radially along the squeezing roller 200. The limit block 320 is connected to a locking piece, which is used to lock the limit block 320 in the limit groove 630. The locking piece is set by a bolt 330. The bolt 330 passes through the limit block 320 radially along the squeezing roller 200 and is pressed against the inner wall of the annular groove 620.

[0047] The scraper 310 is moved radially along the mounting ring 600 , so that the scraper 310 is pressed against the circumference of the squeezing roller 200 , thereby improving the cleaning effect of the scraper 310 on the squeezing roller 200 .

[0048] Reference Figure 7The frame 100 is provided with a sliding groove 140, which is located directly above the squeezing roller 200. The length of the sliding groove 140 is consistent with the length of the squeezing roller 200. The moving assembly 400 includes a screw rod 410, a first motor 420, and a slider 430. The length of the screw rod 410 is consistent with the length of the squeezing roller 200. The screw rod 410 is rotatably connected to the sliding groove 140 at both ends along its length. The first motor 420 is connected to the frame 100. The output shaft of the first motor 420 passes through the inner wall of one end of the sliding groove 140 along the length of the squeezing roller 200. The output shaft of the first motor 420 is connected to the first screw rod 410. The slider 430 is threadedly mounted on the screw rod 410 and embedded in the sliding groove 140. The slider 430 is slidably connected to the sliding groove 140 along the length of the refueling roller. The bottom end of the slider 430 is connected to the mounting ring 600 located above.

[0049] The first motor 420 drives the screw 410 to rotate, so that the slider 430 moves along the length direction of the squeezing roller 200, thereby driving the mounting ring 600 and the scraper 310 to move, and the scraper 310 pushes the fluff away from the squeezing roller 200, reducing the fluff on the surface of the squeezing roller 200.

[0050] Reference Figure 1 and Figure 8 The extrusion roller 200 is provided with a dust collection ring 700 along one end of its length. The dust collection ring 700 is connected to the frame 100. The opening of the dust collection ring 700 is arranged toward the extrusion roller 200. The central axis of the dust collection ring 700 is collinear with the central axis of the extrusion roller 200. The two dust collection rings 700 are spaced apart in the vertical direction, and the two dust collection rings 700 are connected to each other at one end. The frame 100 is connected to an exhaust assembly 800. The exhaust assembly 800 includes an exhaust pump 810, a collection box 820, and an exhaust pipe 830. The exhaust pump 810 and the collection box 820 are both connected to the frame 100. One end of the exhaust pipe 830 is connected to the exhaust pump 810. The other end of the exhaust pipe 830 is provided with a first pipe 840, a second pipe 850, and a third pipe 860. One end of the first pipe 840, the second pipe 850, and the third pipe 860 are all connected to the exhaust pipe 830. The first and third tubes 840 and 860 are connected to the two suction rings 700, respectively. The second tube 850, at one end remote from the exhaust tube 830, is connected to the connection point between the two suction rings 700. A collection box 820 is connected to the exhaust tube 830 and positioned between the first tube 840 and the exhaust pump 810. A second filter plate 821 is connected to the collection box 820. The second filter plate 821 is vertically positioned, and its circumference is connected to the inner wall of the collection box 820.

[0051] When cleaning the squeezing roller 200, the scraping ring 300 pushes the fluff and makes the fluff close to the dust suction ring 700. The vacuum pump 810 extracts air from the dust suction ring 700, thereby forming a negative pressure in the dust suction ring 700, so that the fluff is sucked into the dust suction ring 700, thereby minimizing the fluff from falling into the surrounding environment and causing pollution.

[0052] The implementation principle of the cloth discharging device of an air flow dyeing machine in the embodiment of the present application is as follows: after the cloth is discharged, the fluff is likely to adhere to the surface of the squeezing roller 200, and the first motor 420 drives the screw rod 410 to rotate, so that the slider 430 moves along the length direction of the squeezing roller 200, and the slider 430 drives the mounting ring 600 to move along the length direction of the squeezing roller 200, and the scraper ring 300 follows the mounting ring 600 to move, and the scraper ring 300 pushes the fluff so that the fluff approaches the dust suction ring 700. When the fluff approaches the dust suction ring 700, the vacuum pump 810 exhausts air in the dust suction ring 700, so that a negative pressure is formed in the dust suction ring 700, and the fluff is sucked into the dust suction ring 700, and the fluff enters the vacuum pipe 830, and enters the collection box 820 along the vacuum pipe 830, and is collected in the collection box 820, thereby reducing the fluff on the surface of the squeezing roller 200 and reducing the impact of the fluff on the quality of the cloth.

[0053] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A cloth discharging device for an airflow dyeing machine, comprising a frame (100) and a squeezing roller (200), wherein the frame (100) is arranged near the discharging end of the airflow dyeing machine body, two squeezing rollers (200) are provided, and a gap is provided between the two squeezing rollers (200) for allowing cloth to pass through, and the squeezing rollers (200) are used to squeeze the cloth, and are characterized in that: The squeezing rollers (200) are all slidably sleeved with scraper rings (300), the central axis of the scraper rings (300) is colinear with the central axis of the squeezing rollers (200), the scraper rings (300) are used to contact the surface of the squeezing rollers (200), and the frame (100) is connected to a moving component (400), and the moving component (400) is used to drive the scraper rings (300) to move along the length direction of the squeezing rollers (200).

2. The cloth discharging device of the air flow dyeing machine according to claim 1, characterized in that: The frame (100) is provided with a sliding groove (140), and the length direction of the sliding groove (140) is consistent with the length direction of the squeezing roller (200). The moving component (400) includes a screw rod (410), a first motor (420), and a slider (430). The length direction of the screw rod (410) is consistent with the length direction of the squeezing roller (200). The screw rod (410) is rotatably connected to the sliding groove (140). The first motor (420) is connected to the frame (100). The output shaft of the first motor (420) is connected to the first screw rod (410). The slider (430) is threadedly sleeved on the screw rod (410). The slider (430) is slidably connected to the sliding groove (140) along the length direction of the sliding groove (140). The slider (430) is connected to the scraper ring (300).

3. The cloth discharging device of the air flow dyeing machine according to claim 1, characterized in that: A dust suction ring (700) is provided at one end of the squeezing roller (200), the dust suction ring (700) is connected to the frame (100), the opening of the dust suction ring (700) is arranged toward the squeezing roller (200), and the frame (100) is connected to an air extraction component (800), the air extraction component (800) is used to extract air into the dust suction ring (700).

4. The cloth discharging device of the air flow dyeing machine according to claim 3, characterized in that: The scraper ring (300) is sleeved with a mounting ring (600), the central axis of the mounting ring (600) is colinear with the central axis of the squeezing roller (200), the scraper ring (300) is connected to the mounting ring (600), the scraper ring (300) comprises two scrapers (310), the scrapers (310) are arranged in the form of arc-shaped plates, when cleaning the squeezing roller (200), the scrapers (310) contact the outer circumferential wall of the squeezing roller (200), and the two scrapers (310) are distributed in sequence along the length direction of the squeezing roller (200). The two scrapers (310) are respectively arranged on both sides of the squeezing roller (200) along the radial direction of the squeezing roller (200), and the two scrapers (310) are in contact with each other on one side. The outer circumferential wall of the scraper (310) in contact with the squeezing roller (200) is larger than the semicircular circumference of the squeezing roller (200). The two scrapers (310) are connected to the mounting ring (600) in a radially sliding manner along the squeezing roller (200). The scrapers (310) are both connected to a locking member, and the locking member is used to lock the scraper (310) to the mounting ring (600).

5. The cloth discharging device of the air flow dyeing machine according to claim 4, characterized in that: An annular groove (620) is provided on the inner circumferential wall of the mounting ring (600), and the circumferential direction of the annular groove (620) is consistent with the circumferential direction of the mounting ring (600). The end of the scraper (310) away from the squeezing roller (200) is embedded in the annular groove (620), and the scraper (310) is connected to the annular groove (620) by sliding along the radial direction of the squeezing roller (200). A limiting groove (630) is provided on the side wall of one side along the length direction of the squeezing roller (200), and the length direction of the limiting groove (630) is consistent with the radial direction of the squeezing roller (200). The limiting groove (630) is connected to the annular groove (620), the side of the scraper (310) away from the squeezing roller (200) is connected to the limiting block (320), the length direction of the limiting block (320) is consistent with the length direction of the squeezing roller (200), one end of the limiting block (320) along its length direction is embedded in the limiting groove (630), the limiting block (320) is connected to the limiting groove (630) by sliding along the radial direction of the squeezing roller (200), and the locking member is used to lock the limiting block (320) in the limiting groove (630).

6. The cloth discharging device of the air flow dyeing machine according to claim 1, characterized in that: The squeezing roller (200) is connected to a moving block (210) along one end of its length direction, the frame (100) is provided with a moving groove (130), the length direction of the moving groove (130) is consistent with the vertical direction, the moving block (210) is embedded in the moving groove (130), the moving block (210) is connected to the moving groove (130) in a sliding manner along the vertical direction, and the frame (100) is connected to a driving assembly (500), and the driving assembly (500) is used to drive the two moving blocks (210) to move along the vertical direction and move closer to or away from each other.

7. The cloth discharging device of the air flow dyeing machine according to claim 6, characterized in that: The driving assembly (500) includes a threaded rod (510) and a second motor (520). The length direction of the threaded rod (510) is consistent with the vertical direction. The threaded rod (510) is rotatably connected to the movable groove (130). The threaded rod (510) includes a positive thread segment (511) and a negative thread segment (512). The second motor (520) is connected to the frame (100). The output shaft of the second motor (520) is connected to the threaded rod (510). The two movable blocks (210) are respectively threadedly sleeved on the positive thread segment (511) and the negative thread segment (512).

8. The cloth discharging device of the air flow dyeing machine according to claim 1, characterized in that: The frame (100) is connected to a recovery box (120), the recovery box (120) is arranged directly below the squeezing roller (200), the top of the recovery box (120) is opened, and a first filter plate (121) is connected to the inside of the recovery box (120).

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