Short-period less-water dyeing equipment for cotton fiber fabric

Abstract

The utility model belongs to the technical field of printing and dyeing equipment, and particularly relates to short-period less-water dyeing equipment for cotton fiber fabrics, which can solve the problems. The utility model aims to provide short-period less-water dyeing equipment for cotton fiber fabrics, comprising: a dyeing box, which is internally provided with a dip dyeing structure and one side of which is provided with a pretreatment structure; the purification structure comprises a purification box arranged at the bottom of the dyeing tank, a drainage pipe arranged at the bottom of the purification box and a filter screen arranged at the bottom of the drainage pipe, and a denitrification nitrogen removal solvent is stored in the purification box; the fixing structure is arranged on the drain pipe and the filter screen and is used for fixing the filter screen on the drain pipe; wherein the pretreatment structure is used for stirring and mixing a dyeing solution in advance and guiding the dyeing solution into the dyeing box, and the dip dyeing structure is used for fixing a fabric and immersing the fabric into the dyeing solution.

Description

Technical Field

[0001] This application belongs to the field of dyeing and printing equipment technology, and in particular relates to a short-cycle, low-water dyeing equipment for cotton fiber fabrics. Background Technology

[0002] Traditional cotton fabric dyeing typically employs an immersion dyeing method, where the cotton fabric is soaked in a reactive dye bath and fixed with alkali, thereby forming strong covalent bonds in the cotton fibers. However, during the dyeing process, both the cotton fibers and the dye carry a negative charge, necessitating the addition of electrolytes such as sodium sulfate to reduce the charge repulsion between them. While the use of large amounts of electrolytes increases the dye uptake of cotton fibers, these electrolytes cannot be recovered or degraded, leading to difficulties in treating dyeing wastewater. In addition to electrolytes, dyeing wastewater usually contains more than one-third unfixed dye, resulting in COD values ​​as high as 10 mg / L.

[0003] Patent CN213708805U discloses a short-cycle, low-water dyeing device for pretreatment and dyeing in the same bath, belonging to the field of fabric dyeing technology. The pretreatment and dyeing device includes a base frame, a denitrification denitrification box fixedly connected to the upper end of the base frame, a connecting rod fixedly connected to the upper end of the denitrification denitrification box, a dyeing box fixedly connected to the upper end of the connecting rod, a pretreatment box fixedly connected to the left side of the dyeing box, a motor installed on the outer wall of the left side of the pretreatment box, the power output end of the motor connected to the power input end of the transmission shaft, and stirring paddles fixedly connected to the upper and lower ends of the transmission shaft.

[0004] The aforementioned patent describes a method that uses a denitrification denitrification box and a filter screen to treat and filter dyeing wastewater and solid substances in it, thereby preventing environmental pollution caused by the large amount of chemical components contained in the waste dye when it is discharged. The filter screen is installed using magnetic sheets, which has a certain fixing effect and is easy to install and replace, but the fixing effect is not good and it is easy to fall off, so it needs to be improved. Utility Model Content

[0005] The purpose of this application is to provide a short-cycle, low-water dyeing device for cotton fiber fabrics, which can solve the above-mentioned problems.

[0006] The purpose of this application is to provide a short-cycle, low-water dyeing device for cotton fiber fabrics, comprising:

[0007] The dyeing box has an immersion dyeing structure inside and a pretreatment structure on one side.

[0008] The purification structure includes a purification box located at the bottom of the dyeing side, a drain pipe located at the bottom of the purification box, and a filter screen located at the bottom of the drain pipe. The purification box contains denitrification solvent.

[0009] A fixed structure, installed on the drain pipe and the filter screen, is used to fix the filter screen on the drain pipe;

[0010] The pretreatment structure is used to pre-stir and mix the dyeing solution and introduce it into the dyeing tank, while the immersion structure is used to fix the fabric and immerse it in the dyeing solution.

[0011] The aforementioned short-cycle, low-water dyeing equipment for cotton fiber fabrics, through its purification structure and denitrification solvent within the purification tank, effectively treats dyeing wastewater and harmful substances within it, preventing the direct discharge of waste dyes containing large amounts of chemicals, thus significantly reducing environmental pollution. Further filtration of the wastewater via a filter screen at the bottom of the drain pipe removes solid sediments, ensuring that the discharged water meets environmental protection requirements. Simultaneously, the fixed structure effectively secures the filter screen to the drain pipe, facilitating installation and replacement, and significantly improving the stability and durability of the filter screen, reducing equipment malfunctions and downtime caused by filter screen falling off.

[0012] The combination of pretreatment and dyeing structures makes the dyeing process more efficient and energy-saving. The pretreatment structure pre-stirs and mixes the dyeing solution to ensure its uniformity; while the dyeing structure fixes the fabric and immerses it in the dyeing solution, enabling short-cycle, low-water-volume dyeing, thus improving dyeing efficiency and resource utilization. The dyeing structure consists of a cylinder, a clamping plate connected to the cylinder's output shaft, and clamping components mounted on the clamping plate to hold the cotton fiber fabric. The combined use of these structures not only improves dyeing quality and efficiency and reduces production costs but also reduces environmental pollution, aligning with the principles of green production and sustainable development.

[0013] Furthermore, the fixing structure includes:

[0014] An extension pipe, located at the bottom of the drain pipe, has a T-shaped cross-section and includes an integral pipe body and a disc body.

[0015] A connecting ring is placed on the filter screen and can wrap around the outer wall of the disc.

[0016] An embedded ring is located at the bottom of the disc body;

[0017] The fastener includes a shank and a screw-on end, wherein the threaded end on the shank passes through a connecting ring and a disc in sequence and then connects to a locking ring.

[0018] The insert ring has a threaded hole and is connected to the disk body by a plug-in connection. The disk body has a slot that matches the insert ring.

[0019] The extension tube, T-shaped in cross-section, is located at the bottom of the drain pipe and consists of a tube body and a disc body forming a single unit. This not only increases the length of the drain pipe but also provides a stable support surface for installing and securing the filter screen. A connecting ring is placed on the filter screen, its shape and size designed to tightly wrap around the outer wall of the extension tube's disc body. Its function is to connect the filter screen to the extension tube, forming a preliminary connection structure. An insert ring is located at the bottom of the disc body and is inserted into it. The insert ring has threaded holes for engaging with fasteners for further securing. The fastener consists of a shank and a tightening end; the threaded end of the shank passes through the connecting ring and the disc body sequentially before connecting to the threaded hole in the insert ring. By rotating the tightening end of the fastener, the connecting ring, filter screen, and disc body are gradually and tightly secured together, ensuring the filter screen will not fall off or loosen.

[0020] The use of extension tubes, connecting rings, insert rings, and fasteners creates a stable and reliable fixing structure that effectively prevents the filter screen from falling off and maintains its stability and durability over long-term use. It also facilitates installation and replacement; when the filter screen needs to be replaced, simply loosen the fasteners to easily remove the old screen and install the new one. Once the threaded holes on the insert ring wear down, only the insert ring needs to be replaced, eliminating the need to replace the extension tube and reducing maintenance costs.

[0021] Furthermore, the fixed structure also includes:

[0022] The first through hole is provided on the disc body and communicates with the threaded hole;

[0023] The second through hole is provided on the connecting ring and communicates with the first through hole;

[0024] A connecting protrusion is provided on the connecting ring, and the end of the second through hole away from the first through hole passes through the connecting protrusion;

[0025] The diameters of the first and second through holes are larger than the diameter of the fastener's rod portion.

[0026] A first through hole is located on the disc body and communicates with the threaded hole, allowing the fastener to pass through the disc body and connect with the threaded hole on the insert ring. This avoids direct contact between the fastener and the disc body, reducing the possibility of wear. A second through hole is located on the connecting ring and communicates with the first through hole. The second through hole on the connecting ring is aligned with the first through hole on the disc body, providing a channel for the fastener to easily pass through the connecting ring and the disc body and connect with the insert ring. A connecting protrusion is located on the connecting ring, with the end of the second through hole away from the first through hole passing through the connecting protrusion. The connecting protrusion serves as an auxiliary support point when tightening the fastener, making the tightening process smoother, and also extends the tightening distance, improving the tightening effect.

[0027] Meanwhile, the diameter settings of the first and second through holes prevent direct contact between the fasteners and the disc and connecting ring, thereby reducing wear, extending the service life of the fixing structure, and improving the overall reliability of the equipment.

[0028] Furthermore, the connecting protrusion is a columnar structure with an annular cross-section, and its end is threadedly connected to a limiting component. The limiting component has a limiting through hole that communicates with the second through hole, and the diameter of the limiting through hole is the same as the diameter of the rod.

[0029] Designed as a cylindrical structure with a ring-shaped cross-section, it not only enhances the strength and stability of the connecting ring but also provides support for the installation of the limiting component. The limiting component is located at the end of the connecting protrusion and is fixed to it via a threaded connection, further securing the fastener and preventing it from loosening or falling off during operation. The limiting component has a limiting through hole communicating with the second through hole; the diameter of this through hole is the same as the diameter of the fastener's shank, ensuring that the fastener can smoothly pass through the limiting through hole, the second through hole, and the first through hole to connect with the insert ring.

[0030] The combination of the connecting protrusion and the limiting component enhances the stability and strength of the fixing structure, improving not only the filter's fixation effect but also ensuring the equipment's stability and durability during long-term operation. The limiting component is secured to the connecting protrusion via a threaded connection and features a limiting through-hole with the same diameter as the fastener's rod, effectively preventing loosening or detachment of the fastener during operation and improving the equipment's reliability and safety.

[0031] Furthermore, an inner contact element is provided on the inner wall of the first through hole, an outer contact element is provided on the outer wall of the rod, and an elastic element is provided between the inner contact element and the outer contact element. The elastic element is sleeved on the outside of the rod, and there is a certain gap between the inner wall of the inner contact element and the rod, and between the outer contact element and the inner wall of the second through hole.

[0032] An inner contact element is disposed on the inner wall of the first through hole. Its shape and size match the first through hole and it mates with the outer contact element on the outer wall of the fastener shank. This provides an interface for supporting the elastic element, ensuring the fastener is securely fixed. The outer contact element is disposed on the outer wall of the fastener shank and provides support for the compressive elastic element. The elastic element is disposed between the inner and outer contact elements and sleeved on the outside of the fastener shank, providing preload to improve the fastening effect. Simultaneously, gaps are provided between the inner wall of the inner contact element and the shank, and between the outer contact element and the inner wall of the second through hole. These gaps prevent contact between the inner contact element and the shank, and between the outer contact element and the inner wall of the second through hole, thus preventing wear.

[0033] Furthermore, the elastic force provided by the elastic element facilitates the removal of fasteners during disassembly.

[0034] Furthermore, the outer wall of the insert ring is provided with multiple protrusions, and the slot is provided with a limiting groove that matches the protrusions.

[0035] The raised ribs are located on the outer wall of the insert ring, enhancing the connection strength and stability between the insert ring and the disc slot. The shape and size of the raised ribs match the limiting grooves on the slot to ensure a tight fit. The limiting grooves are located on the disc slot, and their number corresponds to the number of raised ribs. Through their interaction, the insert ring is securely fixed in the slot.

[0036] The beneficial effects of this application are:

[0037] 1. By setting a fixed structure, the filter screen can be effectively fixed on the drain pipe, which not only facilitates installation and replacement, but also significantly improves the stability and durability of the filter screen, reducing equipment failure and downtime caused by the filter screen falling off.

[0038] 2. By setting up a purification structure, the denitrification solvent in the purification box can effectively treat dyeing wastewater and harmful substances in the wastewater, preventing the direct discharge of waste dyes containing a large number of chemical components, thereby greatly reducing environmental pollution.

[0039] 3. The wastewater can be further filtered through the filter screen at the bottom of the drain pipe to remove solid sediments and ensure that the discharged water meets environmental protection requirements. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the structure of this utility model;

[0041] Figure 2 This is a schematic diagram showing the connection between the filter screen and the fixing structure of this utility model;

[0042] Figure 3 This is a utility model Figure 2 Internal structure diagram;

[0043] Figure 4 yes Figure 3 A magnified view of A in the middle.

[0044] The reference numerals in the figure are as follows: 100, dyeing box; 110, immersion structure; 120, pretreatment structure; 200, purification structure; 210, purification box; 220, drain pipe; 230, filter screen; 300, fixing structure; 310, extension pipe; 311, pipe body; 312, disc body; 313, slot; 320, connecting ring; 330, insert ring; 331, threaded hole; 340, fastener; 341, rod; 342, tightening end; 350, first through hole; 360, second through hole; 370, connecting protrusion; 380, limiting component; 381, limiting through hole; 400, inner contact component; 410, outer contact component; 420, elastic component; 500, protrusion; 510, limiting groove. Detailed Implementation

[0045] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0046] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0047] The following description, in conjunction with the accompanying drawings, details the short-cycle, low-water dyeing equipment for cotton fiber fabrics provided in this application through specific embodiments and application scenarios.

[0048] Example 1:

[0049] like Figure 1 As shown in the figure, this application provides a short-cycle, low-water dyeing device for cotton fiber fabrics, comprising:

[0050] The dyeing box 100 has an immersion dyeing structure 110 inside and a pretreatment structure 120 on one side.

[0051] The purification structure 200 includes a purification box 210 located at the bottom of the dyeing side, a drain pipe 220 located at the bottom of the purification box 210, and a filter screen 230 located at the bottom of the drain pipe 220. The purification box 210 stores denitrification solvent.

[0052] A fixing structure 300 is provided on the drain pipe 220 and the filter screen 230 to fix the filter screen 230 on the drain pipe 220.

[0053] The pretreatment structure 120 is used to pre-stir and mix the dyeing solution and introduce it into the dyeing tank 100, while the immersion structure 110 is used to fix the fabric and immerse it in the dyeing solution.

[0054] In some embodiments of this application, such as Figure 1 As shown, the aforementioned short-cycle, low-water dyeing equipment for cotton fiber fabrics, through the installation of a purification structure 200 and a denitrification solvent in the purification tank 210, effectively treats dyeing wastewater and harmful substances in it, preventing the direct discharge of waste dyes containing large amounts of chemical components, thereby significantly reducing environmental pollution. The wastewater is further filtered through a filter screen 230 at the bottom of the drain pipe 220, removing solid sediments and ensuring that the discharged water meets environmental protection requirements. Simultaneously, the fixing structure 300 effectively secures the filter screen 230 to the drain pipe 220, facilitating installation and replacement, and significantly improving the stability and durability of the filter screen 230, reducing equipment malfunctions and downtime caused by the filter screen falling off.

[0055] The combination of the pretreatment structure 120 and the dyeing structure 110 makes the dyeing process more efficient and energy-saving. The pretreatment structure 120 can pre-stir and mix the dyeing solution to ensure its uniformity; while the dyeing structure 110 can fix the fabric and immerse it in the dyeing solution, realizing short-cycle, low-water-volume dyeing, improving dyeing efficiency and resource utilization. The dyeing structure 110 consists of a cylinder, a clamping plate connected to the cylinder output shaft, and clamping components on the clamping plate for holding cotton fiber fabrics. Through the combined use of these structures, not only is dyeing quality and efficiency improved and production costs reduced, but environmental pollution is also reduced, which is in line with the concepts of green production and sustainable development.

[0056] Example 2:

[0057] This application provides a short-cycle, low-water dyeing device for cotton fiber fabrics. In addition to the above-mentioned technical features, the short-cycle, low-water dyeing device for cotton fiber fabrics in this application also includes the following technical features.

[0058] like Figures 2 to 4 As shown, the fixing structure 300 includes:

[0059] The extension pipe 310 is located at the bottom of the drain pipe 220 and has a T-shaped cross-section, including an integral pipe body 311 and a disc body 312.

[0060] The connecting ring 320 is set on the filter screen 230 and can wrap around the outer wall of the disc body 312;

[0061] An embedded ring 330 is located at the bottom of the disc body 312;

[0062] Fastener 340 includes a rod 341 and a tightening end 342. The threaded end on the rod 341 passes through the connecting ring 320 and the disc 312 in sequence and is connected to the insert ring 330.

[0063] The insert ring 330 is provided with a threaded hole 331, and the insert ring 330 and the disk body 312 are connected by plug-in connection. The disk body 312 is provided with a slot 313 that is adapted to the insert ring 330.

[0064] In this embodiment, the extension pipe 310 is disposed at the bottom of the drain pipe 220, and its cross-section is T-shaped. It is an integral structure consisting of a pipe body 311 and a disc body 312. This not only increases the length of the drain pipe 220 but also provides a stable support surface for installing and fixing the filter screen 230. The connecting ring 320 is disposed on the filter screen 230, and its shape and size are designed to tightly wrap around the outer wall of the disc body 312 of the extension pipe 310. Its function is to connect the filter screen 230 and the extension pipe 310 to form a preliminary connection structure. The insert ring 330 is disposed at the bottom of the disc body 312 and is connected to the disc body 312 by plugging. The insert ring 330 is provided with a threaded hole 331 for cooperating with the fastener 340 to achieve further fixation. The fastener 340 includes a rod portion 341 and a tightening end 342. The threaded end on its rod portion 341 passes through the connecting ring 320 and the disc body 312 in sequence and then connects to the threaded hole 331 of the insert ring 330. By rotating the tightening end 342 of the fastener 340, the connecting ring 320, the filter screen 230 and the disc body 312 can be gradually and tightly fixed together, ensuring that the filter screen 230 will not fall off or loosen.

[0065] The extension tube 310, connecting ring 320, insert ring 330, and fastener 340 work together to form a stable and reliable fixing structure 300, which effectively prevents the filter screen 230 from falling off and maintains the stability and durability of the filter screen 230 during long-term use. It also facilitates installation and replacement. When the filter screen 230 needs to be replaced, simply loosen the fastener 340 to easily remove the old filter screen 230 and install the new one. When the threaded hole 331 on the insert ring 330 wears, only the insert ring 330 needs to be replaced; there is no need to replace the extension tube 310, thus reducing maintenance costs.

[0066] Furthermore, the outer wall of the insert ring 330 is provided with multiple protrusions 500, and the slot 313 is provided with a limiting groove 510 that matches the protrusions 500.

[0067] A raised rib 500 is disposed on the outer wall of the insert ring 330, which enhances the connection strength and stability between the insert ring 330 and the slot 313 of the disc body 312. The shape and size of the raised rib 500 match the limiting groove 510 on the slot 313 to ensure a tight fit between the two. The limiting groove 510 is disposed on the slot 313 of the disc body 312, and the number of them corresponds to the number of raised ribs 500. Through their interaction, the insert ring 330 is firmly fixed in the slot 313.

[0068] Example 3:

[0069] This application provides a short-cycle, low-water dyeing device for cotton fiber fabrics. In addition to the above-mentioned technical features, the short-cycle, low-water dyeing device for cotton fiber fabrics in this application also includes the following technical features.

[0070] like Figure 4 As shown, the fixing structure 300 also includes:

[0071] The first through hole 350 is provided on the disk body 312 and communicates with the threaded hole 331;

[0072] The second through hole 360 ​​is disposed on the connecting ring 320 and communicates with the first through hole 350;

[0073] A connecting protrusion 370 is disposed on a connecting ring 320, and the end of the second through hole 360 ​​away from the first through hole 350 passes through the connecting protrusion 370;

[0074] The diameters of the first through hole 350 and the second through hole 360 ​​are larger than the diameter of the rod portion 341 of the fastener 340.

[0075] In this embodiment, a first through hole 350 is provided on the disc body 312 and communicates with a threaded hole 331, allowing the fastener 340 to pass through the disc body 312 and connect with the threaded hole 331 on the insert ring 330. This avoids direct contact between the fastener 340 and the disc body 312, reducing the possibility of wear. A second through hole 360 ​​is provided on the connecting ring 320 and communicates with the first through hole 350. The second through hole 360 ​​on the connecting ring 320 is aligned with the first through hole 350 on the disc body 312, providing a channel for the fastener 340 to easily pass through the connecting ring 320 and the disc body 312 and connect with the insert ring 330. A connecting protrusion 370 is provided on the connecting ring 320, with the end of the second through hole 360 ​​away from the first through hole 350 passing through the connecting protrusion 370. The connecting protrusion 370 serves as an auxiliary support point when the fastener 340 is tightened, making the tightening process smoother and extending the tightening distance, thus improving the tightening effect.

[0076] Meanwhile, the diameter settings of the first through hole 350 and the second through hole 360 ​​avoid direct contact between the fastener 340 and the disc body 312 and the connecting ring 320, thereby reducing wear, extending the service life of the fixing structure 300, and improving the overall reliability of the equipment.

[0077] Furthermore, the connecting protrusion 370 is a columnar structure with an annular cross-section, and its end is threadedly connected to a limiting member 380. The limiting member 380 has a limiting through hole 381 that communicates with the second through hole 360. The diameter of the limiting through hole 381 is the same as the diameter of the rod 341.

[0078] The ring-shaped columnar structure not only enhances the strength and stability of the connecting ring 320 but also provides support for the installation of the limiting member 380. The limiting member 380 is located at the end of the connecting protrusion 370 and is fixed to it via a threaded connection, further securing the fastener 340 and preventing it from loosening or falling off during operation. The limiting member 380 has a limiting through hole 381 communicating with the second through hole 360. The diameter of this through hole is the same as the diameter of the rod portion 341 of the fastener 340, ensuring that the fastener 340 can smoothly pass through the limiting through hole 381, the second through hole 360, and the first through hole 350 to connect with the insert ring 330.

[0079] The connection protrusion 370 and the limiting member 380 together enhance the stability and strength of the fixing structure 300, improving not only the fixing effect of the filter screen 230 but also ensuring the stability and durability of the equipment during long-term operation. The limiting member 380 is fixed to the connection protrusion 370 by a threaded connection and has a limiting through hole 381 with the same diameter as the rod portion 341 of the fastener 340, effectively preventing the fastener 340 from loosening or falling off during operation, thus improving the reliability and safety of the equipment.

[0080] Example 4:

[0081] This application provides a short-cycle, low-water dyeing device for cotton fiber fabrics. In addition to the above-mentioned technical features, the short-cycle, low-water dyeing device for cotton fiber fabrics in this application also includes the following technical features.

[0082] like Figure 4 As shown, an inner contact 400 is provided on the inner wall of the first through hole 350, and an outer contact 410 is provided on the outer wall of the rod 341. An elastic element 420 is provided between the inner contact 400 and the outer contact 410. The elastic element 420 is sleeved on the outside of the rod 341, and there is a certain gap between the inner wall of the inner contact 400 and the rod 341, and between the outer contact 410 and the inner wall of the second through hole 360.

[0083] In this embodiment, the inner contact 400 is disposed on the inner wall of the first through hole 350, and its shape and size match the first through hole 350. It is used to cooperate with the outer contact 410 on the outer wall of the fastener 340 rod 341, providing an interface to support the elastic member 420 and ensure the fastener 340 is securely fixed. The outer contact 410 is disposed on the outer wall of the fastener 340 rod 341 and provides support for compressing the elastic member 420. The elastic member 420 is disposed between the inner contact 400 and the outer contact 410, and sleeved on the outside of the fastener 340 rod 341, providing pre-tightening force to improve the fastening effect. Simultaneously, a certain gap is provided between the inner wall of the inner contact 400 and the rod 341, and between the outer contact 410 and the inner wall of the second through hole 360. These gaps prevent the inner contact 400 from contacting the rod 341 and the outer contact 410 from contacting the inner wall of the second through hole 360, thus preventing wear.

[0084] Furthermore, during disassembly, the elastic force provided by the elastic element 420 facilitates the removal of the fastener 340.

[0085] It should be noted that, in this document, 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples. The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A short-cycle, low-water dyeing device for cotton fiber fabrics, characterized in that: include: A dyeing box (100) is provided with an immersion dyeing structure (110) inside and a pretreatment structure (120) on one side; The purification structure (200) includes a purification box (210) located at the bottom of the dyeing side, a drain pipe (220) located at the bottom of the purification box (210), and a filter screen (230) located at the bottom of the drain pipe (220). The purification box (210) stores denitrification solvent. A fixing structure (300) is provided on the drain pipe (220) and the filter screen (230) for fixing the filter screen (230) on the drain pipe (220); The pretreatment structure (120) is used to pre-stir and mix the dyeing solution and introduce it into the dyeing tank (100), and the immersion structure (110) is used to fix the fabric and immerse it in the dyeing solution. The fixing structure (300) includes: An extension pipe (310) is installed at the bottom of the drain pipe (220), and its cross-section is T-shaped, including a pipe body (311) and a disc body (312) that are integrally structured. A connecting ring (320) is provided on the filter screen (230) and can wrap around the outer wall of the disc body (312); An embedded ring (330) is disposed at the bottom of the disk body (312); The fastener (340) includes a rod (341) and a screwing end (342), and the threaded end on the rod (341) passes through the connecting ring (320) and the disc (312) in sequence and is connected to the insert ring (330); The insert ring (330) is provided with a threaded hole (331), and the insert ring (330) and the disk body (312) are connected by a plug-in connection. The disk body (312) is provided with a slot (313) that is compatible with the insert ring (330).

2. The cotton fiber fabric short-cycle low-water dyeing equipment according to claim 1, characterized in that: The fixing structure (300) also includes: A first through hole (350) is provided on the disc body (312) and communicates with the threaded hole (331); The second through hole (360) is disposed on the connecting ring (320) and communicates with the first through hole (350); A connecting protrusion (370) is provided on the connecting ring (320), and the end of the second through hole (360) away from the first through hole (350) passes through the connecting protrusion (370); The diameters of the first through hole (350) and the second through hole (360) are larger than the diameter of the rod portion (341) of the fastener (340).

3. The cotton fiber fabric short-cycle low-water dyeing equipment according to claim 2, characterized in that: The connecting protrusion (370) is a columnar structure with an annular cross-section, and its end is threadedly connected to a limiting member (380). The limiting member (380) has a limiting through hole (381) that communicates with the second through hole (360). The diameter of the limiting through hole (381) is the same as the diameter of the rod (341).

4. The cotton fiber fabric short-cycle low-water dyeing equipment according to claim 3, characterized in that: An inner contact (400) is provided on the inner wall of the first through hole (350), and an outer contact (410) is provided on the outer wall of the rod (341). An elastic element (420) is provided between the inner contact (400) and the outer contact (410). The elastic element (420) is sleeved on the outside of the rod (341), and there is a certain gap between the inner wall of the inner contact (400) and the rod (341) and between the outer contact (410) and the inner wall of the second through hole (360).

5. The cotton fiber fabric short-cycle low-water dyeing equipment according to claim 4, characterized in that: The outer wall of the insert ring (330) is provided with a plurality of protrusions (500), and the slot (313) is provided with a limiting groove (510) that is adapted to the protrusions (500).

Images