A desizing device for fabric printing and dyeing

Abstract

This invention relates to the field of dyeing and printing technology, specifically to a desizing device for fabric dyeing and printing. The device includes a desizing tank for holding desizing liquid; a collection tank, one side of which contacts the desizing tank; a washing tank disposed on top of the collection tank; a guiding assembly for restricting the movement direction of the fabric; a scraping mechanism disposed within the desizing tank; and a collection mechanism for collecting impurities within the washing tank. This desizing device for fabric dyeing and printing, through the operation of the scraping mechanism, can scrape off the sizing and impurities adhering to the fabric and collect the scraped impurities, preventing contamination of the desizing liquid and clean water by the impurities. By placing the washing tank above the collection tank and installing the collection mechanism on the washing tank, excess water in the washing tank can flow into the desizing tank using the liquid level difference, while the flowing-out impurities can automatically enter the collection tank for collection.

Description

Technical Field

[0001] This invention relates to the field of printing and dyeing technology, specifically to a desizing device for fabric printing and dyeing. Background Technology

[0002] Dyeing and finishing, also known as finishing and finishing, is a processing method that encompasses pretreatment, dyeing, printing, finishing, washing, and more. The warp yarns of fabrics made of cotton, viscose, and synthetic fibers are usually sizing before weaving. Desizing refers to the process of removing sizing agents from the fabric. Sizing agents affect the wettability of the fabric during dyeing and finishing and hinder the contact of chemicals with the fibers. Therefore, fabrics are generally desized first, and then washed with clean water before proceeding to the next process.

[0003] In traditional desizing processes, some of the desized material enters the desizing solution, while the rest remains attached to the fabric and eventually enters the clean water as the fabric moves. As desizing time increases, both the desizing solution and the clean water become increasingly turbid, resulting in a poorer desizing effect. Furthermore, lint adhering to the fabric and impurities in the air enter the desizing solution and clean water during the desizing process, contaminating them and adhering to subsequent fabric layers, affecting the fabric's surface cleanliness. Therefore, we propose a desizing device for fabric printing and dyeing. Summary of the Invention

[0004] The purpose of this invention is to provide a desizing device for fabric printing and dyeing, which solves the problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A desizing device for fabric printing and dyeing includes a desizing tank for holding desizing liquid;

[0007] A collection box, one side of which is in contact with the desizing box;

[0008] A cleaning tank, which is located on top of the collection tank;

[0009] Guide components are used to limit the direction of fabric movement;

[0010] A scraping mechanism is disposed inside the deslurry box;

[0011] A collection mechanism is used to collect impurities inside the cleaning tank;

[0012] A drive mechanism is provided to power the operation of the scraping mechanism and the collecting mechanism;

[0013] And a support frame for supporting the drive mechanism;

[0014] The driving mechanism includes a drive motor, which is fixedly mounted on the support frame. A drive shaft is fixedly mounted on the output end of the drive motor, and the drive shaft is rotatably mounted on the support frame.

[0015] Furthermore, the scraping mechanism includes a fixed column, which is fixedly installed on the deslurry box. A top plate is rotatably installed on the fixed column. A transmission gear meshes with the outer circumference of the top plate. The transmission gear is fixedly installed on the drive shaft. A rotating cylinder is fixedly installed on the top plate. A scraper is fixedly installed on the outer circumference of the rotating cylinder.

[0016] Furthermore, the rotating cylinder is provided with a feed inlet, and a shielding component is provided inside the rotating cylinder to control the opening and closing of the feed inlet.

[0017] Furthermore, the shielding assembly includes a limiting slide rod, a limiting slide groove is formed on the inner circumference of the rotating cylinder, the limiting slide rod is slidably installed in the limiting slide groove, and an inner baffle is fixedly installed on the limiting slide rod.

[0018] Furthermore, the shielding assembly also includes a fixing plate, which is fixedly installed on the inner circumference of the rotating cylinder. A first rotating rod is rotatably installed on the fixing plate, and a sleeve plate is fixedly installed on the first rotating rod. A connecting plate is slidably installed on the inner wall of the sleeve plate. One end of the connecting plate is elastically connected to the inner wall of the sleeve plate by a spring, and the other end of the connecting plate passes through the sleeve plate and is fixedly installed with a second rotating rod. Both ends of the second rotating rod are rotatably installed on the inner baffle.

[0019] Furthermore, the shielding component also includes an outer arc tooth and an inner arc tooth, both of which are fixedly installed on one end of the fixed post near the fixed plate. One end of the first rotating rod passes through the fixed plate and is fixedly installed with a driven gear, which can mesh with the outer arc tooth and the inner arc tooth.

[0020] Furthermore, the collection mechanism includes a support rod, which is fixedly installed on the inner wall of the cleaning tank. An interception frame is fixedly installed on the support rod, and a discharge assembly is provided on the interception frame.

[0021] The cleaning tank is provided with an overflow trough, which is located above the interception frame.

[0022] Furthermore, the discharge assembly includes a limiting frame, which is fixedly installed on the deslurry box. A push plate is slidably installed on the inner wall of the limiting frame. One end of the push plate passes through the limiting frame and contacts a transmission plate. The transmission plate is fixedly installed on the support rod. The other end of the push plate contacts a swing plate, which is fixedly installed on the drive shaft.

[0023] Furthermore, the surface of the push plate has a protrusion, which is elastically connected to the inner wall of the limiting frame by a spring, and the transmission plate is elastically connected to the surface of the cleaning tank by a torsion spring.

[0024] Furthermore, the guiding assembly includes a first pressure roller, a second pressure roller, a first guide roller, and a second guide roller. The first pressure roller and the first guide roller are rotatably mounted on the inner wall of the desizing tank, and the second pressure roller and the second guide roller are rotatably mounted on the inner wall of the washing tank.

[0025] A first pulley is fixedly mounted on the first pressure roller, and a second pulley is connected to the surface of the first pulley via a belt drive. The second pulley is fixedly mounted on the drive shaft.

[0026] By employing the above technical solution, the present invention provides a desizing device for fabric printing and dyeing. It possesses at least the following beneficial effects:

[0027] (1) The desizing device for fabric printing and dyeing can scrape off the sizing and impurities adhering to the fabric through the operation of the scraping mechanism, and collect the scraped impurities to avoid contamination of the desizing liquid and clean water by the impurities. By setting the washing tank above the collection tank and setting the collection mechanism on the washing tank, the excess water in the washing tank can flow into the desizing tank by the liquid level difference, and the impurities flowing out can automatically enter the collection tank for collection, so as to gradually change the water in the washing tank and the desizing tank, making the liquid in the desizing tank and the washing tank clearer and the desizing effect better.

[0028] (2) The desizing device for fabric printing and dyeing, by setting a shielding component, can automatically open and close the feed inlet during the rotation of the rotating drum and the scraper, so that the scraped impurities can automatically enter the rotating drum through the feed inlet, and the impurities in the rotating drum will not fall out with its rotation, thus achieving the purpose of automatically collecting impurities and preventing the scraped impurities from re-entering the desizing liquid.

[0029] (3) The desizing device for fabric printing and dyeing, by setting a discharge component, enables the interception frame to swing intermittently, and pours the impurities inside into the collection box during the swinging process, so that the impurities are automatically collected, and the filtration effect is avoided due to too many impurities in the interception frame.

[0030] (4) The desizing device for fabric printing and dyeing, by setting a drive mechanism, can provide power for the operation of the scraping mechanism and the collection mechanism, so that no manual operation is required, and the whole device can operate automatically and orderly, reducing the workload of the staff and improving the efficiency of desizing. Attached Figure Description

[0031] The accompanying drawings, which are provided to further illustrate the invention, constitute a part of this application:

[0032] Figure 1 This is a schematic diagram of the overall structure disclosed in the embodiments of this disclosure;

[0033] Figure 2 This is a schematic diagram of the cleaning tank disclosed in an embodiment of this disclosure;

[0034] Figure 3 This is a cross-sectional view of the overall structure disclosed in the embodiments of this disclosure;

[0035] Figure 4 This is a schematic diagram of the overflow channel disclosed in an embodiment of this disclosure;

[0036] Figure 5 This is a schematic diagram of the collection mechanism disclosed in an embodiment of this disclosure;

[0037] Figure 6 This is a schematic diagram of the scraping mechanism disclosed in an embodiment of this disclosure;

[0038] Figure 7 This is a cross-sectional view of the rotating cylinder disclosed in an embodiment of this disclosure;

[0039] Figure 8 This is a schematic diagram of the limiting slide bar disclosed in this embodiment;

[0040] Figure 9 This is a schematic diagram of the outer arc teeth and inner arc teeth disclosed in an embodiment of this disclosure.

[0041] In the diagram: 1. Desizing tank; 2. Washing tank; 21. Overflow trough; 3. Collection tank; 4. Support frame; 5. Guide assembly; 51. First pressure roller; 52. First pulley; 53. Second pulley; 54. First guide roller; 55. Second guide roller; 56. Second pressure roller; 6. Drive mechanism; 61. Drive motor; 62. Drive shaft; 7. Scraping mechanism; 71. Rotating cylinder; 711. Feed inlet; 712. Limiting chute; 72. Scraper; 73. Top plate; 74. Fixed column; 75. 751. Blocking assembly; 752. Limiting slide bar; 753. Inner baffle; 754. Second rotating rod; 755. Connecting plate; 756. Sleeve plate; 757. First rotating rod; 758. Driven gear; 759. Fixing plate; 7510. Outer arc tooth; 76. Transmission gear; 8. Collecting mechanism; 81. Support rod; 82. Interception frame; 83. Discharge assembly; 831. Transmission plate; 832. Torsion spring; 833. Limiting frame; 834. Push plate; 835. Swing plate. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please see Figures 1-9 The present invention provides a technical solution:

[0044] A desizing device for fabric printing and dyeing includes a desizing tank 1 for holding desizing liquid and desizing the fabric.

[0045] The collection box 3 is in contact with the deslurry box 1 on one side and is fixedly installed on the deslurry box 1 by bolts;

[0046] The washing box 2 is fixedly installed on top of the collection box 3. The washing box 2 is filled with clean water and is used to wash the fabric after desizing.

[0047] Guide component 5 is used to guide and tension the fabric and limit the direction of fabric movement;

[0048] The scraping mechanism 7 is installed inside the desizing box 1 and is used to scrape off impurities and sizing from the fabric.

[0049] The collection mechanism 8 is used to collect impurities in the cleaning tank 2 and discharge the impurities into the collection tank 3;

[0050] The drive mechanism 6 provides power for the operation of the guide assembly 5, the scraper mechanism 7, and the collection mechanism 8;

[0051] And support frame 4, which is fixedly installed on the outside of deslurry box 1 and spans the entire deslurry box 1, is used to support drive mechanism 6 so that the operation of drive mechanism 6 remains stable;

[0052] The drive mechanism 6 includes a drive motor 61, which is fixedly mounted on the support frame 4. The output end of the drive motor 61 is fixedly mounted with a drive shaft 62, which is rotatably mounted on the support frame 4. By setting the drive motor 61 and the drive shaft 62, power can be provided for the operation of the guide assembly 5, the scraping mechanism 7 and the collecting mechanism 8.

[0053] In some embodiments, the scraping mechanism 7 includes a fixed column 74, which is fixedly installed on the deslurry box 1. A top plate 73 is rotatably installed on the fixed column 74. The outer circumference of the top plate 73 has a ring of teeth, and a transmission gear 76 is engaged with the teeth. The transmission gear 76 is fixedly installed on the drive shaft 62. A rotating cylinder 71 is fixedly installed on the top plate 73, and a scraper 72 is fixedly installed on the outer circumference of the rotating cylinder 71. The rotating drum 71 has multiple feed inlets 711 arranged in a circular array. Scrapers 72 are obliquely arranged on the outside of the feed inlets 711, and the number of scrapers 72 is the same as the number of feed inlets 711. As the rotating drum 71 rotates, the scrapers 72 come into contact with the fabric and scrape off the slurry and impurities attached to the fabric. The scraped material falls from the feed inlets 711 into the interior of the rotating drum 71 during rotation and is collected. A shielding component 75 is provided inside the rotating drum 71 to control the opening and closing of the feed inlets 711, thereby preventing impurities in the rotating drum 71 from returning to the deslurry box 1.

[0054] like Figure 7 As shown, the rotating cylinder 71 has multiple drainage holes to drain excess water from inside the rotating cylinder 71.

[0055] Specifically, the shielding component 75 in this embodiment includes two limiting slide rods 751. Two annular limiting slide grooves 712 are formed on the inner circumference of the rotating cylinder 71. The two annular limiting slide grooves 712 are symmetrically distributed about the center line of the inner baffle 752. The two limiting slide rods 751 are slidably installed within the two limiting slide grooves 712, and the inner baffle 752 is fixedly installed on the limiting slide rods 751. The cross-section of the limiting slide groove 712 is convex, and the shape of the limiting slide rod 751 is adapted to the limiting slide groove 712 to limit the inner baffle 752, allowing the inner baffle 752 to slide tightly against the inner wall of the rotating cylinder 71, preventing impurities from spilling out from the gap between the inner baffle 752 and the rotating cylinder 71.

[0056] In addition, the shielding assembly 75 also includes a fixing plate 758, which is fixedly installed on the inner circumference of the rotating cylinder 71. A first rotating rod 756 is rotatably mounted on the fixing plate 758, and a sleeve plate 755 is fixedly mounted on the first rotating rod 756. There are two fixing plates 758, which are symmetrically distributed about the center line of the sleeve plate 755. The first rotating rod 756 is rotatably mounted on the two fixing plates 758, making the rotation of the first rotating rod 756 and the sleeve plate 755 more stable. A connecting plate 754 is slidably mounted on the inner wall of the socket plate 755. One end of the connecting plate 754 is elastically connected to the inner wall of the socket plate 755 via springs. Multiple springs are distributed equidistantly along the length of the connecting plate 754 to ensure the stability of the elastic reset between the connecting plate 754 and the socket plate 755. The other end of the connecting plate 754 passes through the socket plate 755 and is fixedly mounted with a second rotating rod 753. Both ends of the second rotating rod 753 are rotatably mounted on the inner baffle 752. The blocking assembly 75 also includes an outer arc tooth 759 and an inner arc tooth 7510, both of which are fixedly mounted on the end of the fixing post 74 near the fixing plate 758. One end of the first rotating rod 756 passes through the fixing plate 758 and is fixedly mounted with a driven gear 757, which can mesh with the outer arc tooth 759 and the inner arc tooth 7510. When the rotating cylinder 71 rotates, it will synchronously drive the other structures in the shielding assembly 75, except for the outer arc tooth 759 and the inner arc tooth 7510, to rotate. During the rotation, one side of the driven gear 757 will contact the outer arc tooth 759 and rotate forward under the action of the outer arc tooth 759. The driven gear 757 drives the sleeve plate 755 to rotate through the first rotating rod 756. The sleeve plate 755 drives the connecting plate 754 to rotate. The connecting plate 754 drives the inner baffle 752 to slide along the limiting slide groove 712. Thus, when the feed port 711 is opened, the scraper 72 scrapes off the impurities on the fabric, and the impurities can enter the interior of the rotating cylinder 71 through the feed port 711. As the rotating drum 71 continues to rotate, the driven gear 757 will disengage from the outer arc tooth 759 and continue to rotate at a certain angle, allowing impurities to fall fully into the rotating drum 71. Subsequently, the other side of the driven gear 757 will mesh with the inner arc tooth 7510 and rotate in the opposite direction under the action of the inner arc tooth 7510, causing the inner baffle 752 to automatically reset and close the feed port 711, preventing the material in the rotating drum 71 from falling out of the feed port 711.

[0057] In some embodiments, the collection mechanism 8 includes a support rod 81, which is fixedly installed on the inner wall of the cleaning tank 2. An interception frame 82 is fixedly installed on the support rod 81. The interception frame 82 has multiple filter holes for filtering impurities in the water. A discharge assembly 83 is provided on the interception frame 82.

[0058] To enable the discharge assembly 83 to operate intermittently and automatically, and to pour impurities from the interception frame 82 into the collection box 3, the discharge assembly 83 in this embodiment includes a limiting frame 833, which is fixedly installed on the desizing box 1. A push plate 834 is slidably installed on the inner wall of the limiting frame 833. One end of the push plate 834 passes through the limiting frame 833 and contacts a transmission plate 831, which is fixedly installed on a support rod 81. The other end of the push plate 834 contacts a swing plate 835, which is fixedly installed on a drive shaft 62. When the drive shaft 62 rotates, it synchronously drives the swing plate 835 to rotate. Each rotation of the swing plate 835 contacts the push plate 834 once, pushing the push plate 834 to the left. The left end of the push plate 834 drives the transmission plate 831 and the support rod 81 to rotate. The support rod 81 causes the interception frame 82 to swing at a certain angle, pouring the impurities into the collection box 3, thus automatically collecting the impurities. The surface of the push plate 834 has protrusions, and a guide rod is fixedly installed on the inner wall of the limiting frame 833. The guide rod passes through the protrusions on the push plate 834 to limit the push plate 834, making the left and right movement of the push plate 834 more stable. A spring is sleeved on the guide rod, and the protrusions are elastically connected to the inner wall of the limiting frame 833 through the spring, so that the push plate 834 can automatically reset after the swing plate 835 disengages from the push plate 834. In addition, a torsion spring 832 is sleeved on the support rod 81. One end of the torsion spring 832 is fixedly installed on the cleaning tank 2, and the other end of the torsion spring 832 is fixedly installed on the transmission plate 831, so that the transmission plate 831 can be elastically connected to the surface of the cleaning tank 2 through the torsion spring 832, thereby driving the transmission plate 831, the support rod 81, and the intercepting frame 82 to automatically reset.

[0059] like Figures 2-4 As shown, the cleaning tank 2 has a groove for the intercepting frame 82 to be installed, and an overflow trough 21 is located above the intercepting frame 82. During use, clean water is continuously added to the cleaning tank 2 through an external pipe. Excess water in the cleaning tank 2 flows out through the overflow trough 21 and then through the intercepting frame 82 into the desizing tank 1. The desizing tank 1 is equipped with an overflow pipe (not shown in the figure) to drain excess water, thus achieving water exchange and making the liquid in both the cleaning tank 2 and the desizing tank 1 clearer. During this process, the intercepting frame 82 intercepts impurities flowing out of the cleaning tank 2, preventing them from entering the desizing tank 1. The surfaces of the collecting tank 3 and the desizing tank 1 that come into contact with each other are provided with slopes to facilitate impurities falling into the collecting tank 3.

[0060] In this embodiment, the guiding assembly 5 includes a first pressure roller 51, a second pressure roller 56, a first guide roller 54, and a second guide roller 55, used for guiding and tensioning the fabric. The first pressure roller 51 and the first guide roller 54 are rotatably mounted on the inner wall of the desizing tank 1, and the second pressure roller 56 and the second guide roller 55 are rotatably mounted on the inner wall of the washing tank 2. There are two of each type of guide roller. The two first guide rollers 54 are symmetrically distributed about the center line of the desizing tank 1, and the two second guide rollers 55 are symmetrically distributed about the center line of the washing tank 2. During desizing, the fabric moves from right to left, passing through one of the first guide rollers 54 into the desizing tank 1 for desizing. It then passes through the two first pressure rollers 51 and the other first guide roller 54 to exit the desizing tank 1, then passes through one of the second guide rollers 55 into the washing tank 2 for washing. Finally, it passes through the second pressure roller 56 and the other second guide roller 55 to exit the device and enter the next process. To increase the power of the fabric movement, a first pulley 52 is fixedly installed on the first pressure roller 51. A second pulley 53 is connected to the surface of the first pulley 52 via a belt drive. The second pulley 53 is fixedly installed on the drive shaft 62, so that the first pressure roller 51 can rotate with the rotation of the drive shaft 62 and drive the fabric to move.

[0061] In use, the desizing device for fabric printing and dyeing of the present invention moves the fabric from right to left, passing through one of the first guide rollers 54 into the desizing tank 1 for desizing. Then, it passes through two first pressure rollers 51 and another first guide roller 54 to exit the desizing tank 1, and then through one of the second guide rollers 55 into the washing tank 2 for washing. Finally, it passes through a second pressure roller 56 and another second guide roller 55 to exit the device and enter the next process. During this process, clean water is continuously added to the washing tank 2 through an external pipe. Excess water in the washing tank 2 flows out through the overflow trough 21, and the water passes through the interception frame 82 into the desizing tank 1, where excess water flows out, thus achieving the purpose of water exchange and making the liquid in both the washing tank 2 and the desizing tank 1 clearer. The interception frame 82 can intercept impurities flowing out of the washing tank 2, preventing impurities from entering the desizing tank 1.

[0062] During the desizing process, the output end of the drive motor 61 drives the drive shaft 62 to rotate clockwise, the drive shaft 62 drives the transmission gear 76 to rotate clockwise, the transmission gear 76 drives the top plate 73 to rotate counterclockwise through meshing, the top plate 73 drives the rotating cylinder 71 to rotate counterclockwise, the rotating cylinder 71 drives the scraper 72 to rotate, the scraper 72 will contact the fabric during the rotation process and scrape off the slurry and impurities attached to the fabric. During the rotation of the rotating cylinder 71, the other structures in the shielding assembly 75, except for the outer arc tooth 759 and the inner arc tooth 7510, will rotate synchronously. When the rotation reaches a specified angle, one side of the driven gear 757 will contact the outer arc tooth 759 and rotate forward under the action of the outer arc tooth 759. The driven gear 757 drives the sleeve plate 755 to rotate through the first rotating rod 756. The sleeve plate 755 drives the connecting plate 754 to rotate. The connecting plate 754 drives the inner baffle 752 to slide along the limiting slide groove 712. Thus, when the feed port 711 is opened, the scraper 72 scrapes off the impurities on the fabric, and the impurities can enter the interior of the rotating cylinder 71 through the feed port 711. As the rotating drum 71 continues to rotate, the driven gear 757 disengages from the outer arc tooth 759 and continues to rotate at a certain angle, allowing impurities to fall fully into the rotating drum 71. Subsequently, the other side of the driven gear 757 engages with the inner arc tooth 7510 and rotates in the opposite direction under the action of the inner arc tooth 7510, causing the inner baffle 752 to automatically reset and close the feed inlet 711, preventing the material in the rotating drum 71 from falling out of the feed inlet 711. When the drive shaft 62 rotates, it can synchronously drive the swing plate 835 to rotate. Every time the swing plate 835 rotates once, it contacts the push plate 834 once and pushes the push plate 834 to the left. The left end of the push plate 834 drives the transmission plate 831 and the support rod 81 to rotate. The support rod 81 drives the interception frame 82 to swing at a certain angle and pour the impurities inside into the collection box 3, so that the impurities are automatically collected.

[0063] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0064] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A desizing device for fabric printing and dyeing, characterized in that, include: Desizing tank (1), used to hold desizing liquid; A collection box (3) is in contact with the desizing box (1) on one side; A cleaning tank (2) is disposed on top of the collection tank (3); Guide component (5) is used to limit the direction of movement of the fabric; Slurry scraping mechanism (7), which is disposed inside the slurry removal box (1); Collection mechanism (8) is used to collect impurities in the cleaning tank (2); A drive mechanism (6) is used to provide power for the operation of the scraping mechanism (7) and the collecting mechanism (8); And a support frame (4) for supporting the drive mechanism (6); The drive mechanism (6) includes a drive motor (61), which is fixedly mounted on the support frame (4). A drive shaft (62) is fixedly mounted on the output end of the drive motor (61), and the drive shaft (62) is rotatably mounted on the support frame (4). The scraping mechanism (7) includes a fixed column (74), which is fixedly installed on the deslurry box (1). A top plate (73) is rotatably installed on the fixed column (74). A transmission gear (76) meshes with the outer circumference of the top plate (73). The transmission gear (76) is fixedly installed on the drive shaft (62). A rotating cylinder (71) is fixedly installed on the top plate (73). A scraper (72) is fixedly installed on the outer circumference of the rotating cylinder (71). A feed inlet (711) is provided on the rotating cylinder (71). A shielding component (75) is provided inside the rotating cylinder (71) to control the feed inlet (711). 11) opening and closing; the shielding assembly (75) includes a limiting slide rod (751), a limiting slide groove (712) is opened on the inner circumference of the rotating cylinder (71), the limiting slide rod (751) is slidably installed in the limiting slide groove (712), and an inner baffle (752) is fixedly installed on the limiting slide rod (751); the shielding assembly (75) also includes a fixing plate (758), the fixing plate (758) is fixedly installed on the inner circumference of the rotating cylinder (71), a first rotating rod (756) is rotatably installed on the fixing plate (758), and a sleeve plate (755) is fixedly installed on the first rotating rod (756). A connecting plate (754) is slidably mounted on the inner wall of the socket plate (755). One end of the connecting plate (754) is elastically connected to the inner wall of the socket plate (755) via a spring. The other end of the connecting plate (754) passes through the socket plate (755) and is fixedly mounted with a second rotating rod (753). Both ends of the second rotating rod (753) are rotatably mounted on the inner baffle (752). The shielding assembly (75) also includes an outer arc tooth (759) and an inner arc tooth (7510). The outer arc tooth (759) and the inner arc tooth (7510) are both fixedly mounted on the fixing post (74) near the fixing plate (758). At one end, one end of the first rotating rod (756) passes through the fixed plate (758) and is fixedly installed with a driven gear (757), which can mesh with the outer arc tooth (759) and the inner arc tooth (7510); the collecting mechanism (8) includes a support rod (81), which is fixedly installed on the inner wall of the cleaning tank (2), and an interception frame (82) is fixedly installed on the support rod (81), and a discharge assembly (83) is provided on the interception frame (82); an overflow groove (21) is opened on the cleaning tank (2), and the overflow groove (21) is located above the interception frame (82);The discharge assembly (83) includes a limiting frame (833), which is fixedly installed on the desizing box (1). A push plate (834) is slidably installed on the inner wall of the limiting frame (833). One end of the push plate (834) passes through the limiting frame (833) and contacts a transmission plate (831). The transmission plate (831) is fixedly installed on the support rod (81). The other end of the push plate (834) contacts a swing plate (835), which is fixedly installed on the drive shaft (62). The surface of the push plate (834) has a protrusion, which is elastically connected to the inner wall of the limiting frame (833) by a spring. The transmission plate (831) is elastically connected to the surface of the cleaning box (2) by a torsion spring (832).

2. The desizing device for fabric printing and dyeing according to claim 1, characterized in that, The guiding assembly (5) includes a first pressure roller (51), a second pressure roller (56), a first guide roller (54), and a second guide roller (55). The first pressure roller (51) and the first guide roller (54) are rotatably mounted on the inner wall of the desizing box (1), and the second pressure roller (56) and the second guide roller (55) are rotatably mounted on the inner wall of the cleaning box (2). A first pulley (52) is fixedly installed on the first pressure roller (51), and a second pulley (53) is connected to the surface of the first pulley (52) via belt drive. The second pulley (53) is fixedly installed on the drive shaft (62).

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