Buffering rectifying tube for cloth guiding of low-bath-ratio cloth dyeing machine

Abstract

The utility model relates to the technical field of textile printing and dyeing equipment, in particular to a buffer rectifying tube for cloth guide of a low-bath-ratio cloth dyeing machine, which comprises a tube body, one end of the tube body is an inlet section, and the other end of the tube body is an outlet section; the inlet section of the pipe body is connected with a fabric guiding mechanism, the fabric guiding mechanism comprises a sliding rail support with scale marks, a width expander used for adjusting along with the fabric breadth and an adjusting assembly used for adjusting the distance between the width expander, the sliding rail support is arranged on the outer side wall of the pipe body in the circumferential direction, and a guiding groove is formed in the sliding rail support; the expander comprises two groups of ceramic guide rollers which are distributed in a splayed shape, and the two groups of ceramic guide rollers are symmetrically and obliquely arranged to form a divergent channel; one end of the ceramic guide roller is slidably mounted in the guide groove through a bearing seat and is in transmission connection with the adjusting assembly. The cloth guide pipe solves the problems of dye liquor rotational flow, fabric twisting and the like caused by the circular section of an existing cloth guide pipe, cloth dyeing uniformity and smoothness are improved, and dyeing quality and production efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of textile printing and dyeing equipment technology, and in particular to a buffer rectifier tube for guiding fabric in a low liquor ratio dyeing machine. Background Technology

[0002] In the textile printing and dyeing industry, high-temperature and high-pressure dyeing machines are important pieces of equipment. Their dyeing temperature is typically between 130-135℃, and the dyeing pressure is around 0.3MPa. A high-temperature and high-pressure dyeing machine mainly consists of a main drum, a guide pipe, and a pump. The guide pipe and the main drum are connected end-to-end, forming a circulation loop for the fabric. During the dyeing and rinsing process, the fabric circulates back and forth between the guide pipe and the main drum along with the dye liquor flow driven by the pump. The guide pipe, as one of the key channels for dyeing and rinsing the fabric, has a significant impact on the dyeing effect due to its structure.

[0003] Currently, bottom-feed dyeing machines operate at high fabric speeds, and the processed fabrics are generally woven, resulting in the fabric exhibiting a rope-like state during its movement through the guide tube. However, the guide tubes of existing high-temperature, high-pressure dyeing machines mostly have a circular cross-section, a structure with several drawbacks. Firstly, without fabric shaping treatment, the rope-like state of the fabric will worsen, leading to uneven dyeing and severely impacting dyeing quality. Secondly, during the dyeing and rinsing process, the circular guide tube easily causes the dye liquor flow within the tube to swirl, causing the fabric to twist and even knot as it rinses. This not only results in poor dyeing uniformity but also makes the fabric's movement within the guide tube uneven, increasing equipment resistance and failure rates, reducing production efficiency, and raising production costs. Utility Model Content

[0004] In order to address the technical deficiencies mentioned in the background art, the purpose of this utility model is to provide a buffer rectifier tube for a low liquor ratio dyeing machine, so as to solve the problems of dye liquor swirling and fabric twisting caused by the circular cross-section of the existing guide tube, improve the uniformity and smoothness of fabric dyeing, and enhance dyeing quality and production efficiency.

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

[0006] A buffer rectifier tube for guiding fabric in a low liquor ratio dyeing machine includes a tube body, one end of which is an inlet section and the other end is an outlet section. The inlet section is connected to a fabric guiding mechanism, which includes a slide rail bracket with graduated markings, a spreader for adjusting according to the fabric width, and an adjusting component for adjusting the spacing between the spreaders. The slide rail bracket is circumferentially disposed on the outer wall of the tube body, and a guide groove is formed on the slide rail bracket. The spreader includes two sets of ceramic guide rollers arranged in a figure-eight pattern, with the two sets of ceramic guide rollers arranged symmetrically and inclined to form a gradually expanding channel. One end of each ceramic guide roller is slidably mounted in the guide groove via a bearing seat and is connected to the adjusting component for synchronous adjustment of the spacing between the two sets of ceramic guide rollers.

[0007] Preferably, the angle between the central axis of the ceramic guide roller and the axis of the tube body is 8°-15°.

[0008] Preferably, the adjusting assembly includes a worm gear, an adjusting screw, and an adjusting nut; the worm gear meshes with the worm portion of the adjusting screw, one end of the adjusting screw is fixed to the outside of the slide rail bracket, and the other end passes through the slide rail bracket and is threaded into the bearing seat; the adjusting nut is sleeved on the end of the adjusting screw.

[0009] Preferably, the inner wall of the tube is provided with a plurality of dovetail grooves spaced apart along the axial direction, and each dovetail groove is fitted with a flow guide rib.

[0010] Preferably, the cross-section of the flow guide rib is semi-circular, and the flow guide rib is connected to the inner wall of the pipe by integral molding or detachable connection.

[0011] Preferably, the outlet section of the pipe is provided with a turbulence suppression ring, the inner diameter of which is larger than the inner diameter of the pipe, and a number of flow guiding holes are evenly distributed around the ring.

[0012] Preferably, the cross-section of the tube is an asymmetrical polygonal structure, and the polygon has 5-8 sides.

[0013] Preferably, the cross-section of the tube is elliptical, and the ratio of the major axis to the minor axis of the ellipse is 1.5:1 to 2.5:1.

[0014] In summary, the beneficial effects of this utility model are as follows:

[0015] This invention uses a fabric guiding mechanism to initially flatten rope-like fabrics, combined with the guiding effect of the dye liquor by the guide ribs, to make the fabric run more smoothly in the guide tube, reducing the occurrence of fabric twisting or even knotting, thus reducing equipment operating resistance and failure rate, and improving production efficiency. Furthermore, the adjustable spreader is used to adjust the fabric according to different fabric widths, improving the adaptability of the guide tube to different types of fabrics and expanding the application range of high-temperature and high-pressure dyeing machines. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the buffer rectifier tube for guiding the fabric in a low-liquor-ratio dyeing machine according to this utility model;

[0017] Figure 2 This is a top view of the buffer rectifier tube for guiding fabric in a low-liquor-ratio dyeing machine according to this utility model;

[0018] Figure 3 yes Figure 2 A cross-sectional view of the AA plane;

[0019] Figure 4 yes Figure 2 A cross-sectional view of the BB plane;

[0020] Figure 5 yes Figure 2 A sectional view of the C-plane;

[0021] Figure 6 This is a three-dimensional sectional view of the fabric guiding mechanism in this utility model;

[0022] Figure 7 yes Figure 6 Enlarged view of the structure at point a.

[0023] Explanation of the reference numerals in the figure:

[0024] 1. Pipe body; 11. Inlet section; 12. Outlet section; 13. Dovetail groove; 2. Fabric guiding mechanism; 21. Slide rail bracket; 211. Guide groove; 22. Expander; 221. Ceramic guide roller; 222. Bearing seat; 23. Adjustment assembly; 231. Worm gear; 232. Adjusting screw; 233. Adjusting nut; 3. Guide rib; 4. Turbulence suppression ring; 41. Guide hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0026] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0027] In the description of this utility model, the use of terms such as "several" means one or more, with "multiple" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.

[0028] The following is in conjunction with the appendix Figure 1-7 The present invention provides a more detailed description of an embodiment of a buffer rectifier tube for guiding fabric in a low liquor ratio dyeing machine.

[0029] A buffer rectifier tube for guiding fabric in a low liquor ratio dyeing machine, such as Figures 1 to 3 As shown, the device includes a tube body 1, with one end being an inlet section 11 and the other end being an outlet section 12. The inlet section 11 of the tube body 1 is connected to a fabric guiding mechanism 2. The fabric guiding mechanism 2 includes a slide rail bracket 21 with scale markings, a spreader 22 for adjusting according to the fabric width, and an adjusting component 23 for adjusting the spacing of the spreaders 22. The slide rail bracket 21 is circumferentially arranged on the outer wall of the tube body 1, and a guide groove 211 is provided on the slide rail bracket 21. The spreader 22 includes two sets of ceramic guide rollers 221 arranged in a figure-eight shape. The two sets of ceramic guide rollers 221 are symmetrically inclined to form a gradually expanding channel. One end of the ceramic guide roller 221 is slidably installed in the guide groove 211 through a bearing seat 222 and is connected to the adjusting component 23 for transmission, so as to realize the synchronous adjustment of the spacing between the two sets of ceramic guide rollers 221.

[0030] Specifically, the expander 22 is installed 200-300mm from the flange interface of the pipe body 1 at the inlet section 11. This location effectively avoids the turbulent fluid zone, preventing any impact on the expansion effect of the expander 22. The ceramic guide rollers 221 have advantages such as high hardness, good wear resistance, and strong chemical stability, which can effectively reduce wear on the fabric. The spacing between the guide rollers can be adjusted according to the fabric width, achieved through the adjustment component 23. Before use, the distance between the ceramic guide rollers 221 is adjusted according to the width of the fabric to be dyed, allowing the fabric to pass smoothly and achieve initial flattening. During the dyeing process, the spacing between the guide rollers can be finely adjusted according to the actual situation to adapt to the dyeing requirements of different fabrics. After dyeing is completed, the ceramic guide rollers 221 automatically return to their original position, preparing for the next dyeing cycle.

[0031] When the rope-like fabric passes through, the tilt angle of the ceramic guide roller 221 generates a radial force, forcing the fabric to expand laterally. Simultaneously, a micro-pore array with a pore diameter of 0.3 mm and a density of 250 pores / cm² is laser-processed on the surface of the ceramic guide roller 221. 2 By adsorbing the dye liquor through capillary effect to form a lubricating film, the friction coefficient between the fabric and the guide roller is controlled at 0.08-0.12 to achieve low-damage expansion, thereby improving the adaptability of the guide tube to different types of fabrics and expanding the application range of high-temperature and high-pressure dyeing machines.

[0032] In this embodiment, as Figure 6 As shown, the angle between the central axis of the ceramic guide roller 221 and the axis of the tube body 1 is 8°-15°.

[0033] Specifically, to accommodate fabrics of different sizes and to avoid the ceramic guide roller 221 having an excessively small opening that could affect the fabric conveying within the tube 1, the axis of the ceramic guide roller 221 is offset from the axis of the tube 1 by 8°-15°. This maximizes the diameter of the inlet section 11 of the tube 1 and allows for adjustment of the expansion degree of the ceramic guide roller 221 according to the size of the fabric, resulting in smoother fabric movement within the guide tube. This reduces fabric twisting and even knotting, lowers equipment operating resistance and failure rate, and improves production efficiency.

[0034] In this embodiment, as Figure 7 As shown, the adjusting assembly 23 includes a worm 231, an adjusting screw 232, and an adjusting nut 233. The worm 231 meshes with the worm portion of the adjusting screw 232. One end of the adjusting screw 232 is fixed to the outside of the slide rail bracket 21, and the other end passes through the slide rail bracket 21 and is threaded into the bearing seat 222. The adjusting nut 233 is sleeved on the end of the adjusting screw 232.

[0035] Specifically, the adjusting screw 232 is connected to the bearing seat 222 of the ceramic guide roller 221. The operator only needs to rotate the adjusting nut 233 to change the spacing between the ceramic guide rollers 221, so as to achieve the initial flattening of the rope-like fabric and avoid further entanglement and twisting of the fabric in the guide tube.

[0036] In this embodiment, as Figure 5 As shown, multiple dovetail grooves 13 are spaced apart along the axial direction on the inner wall of the tube body 1, and each dovetail groove 13 is fitted with a flow guide rib 3; the cross-section of the flow guide rib 3 is semi-circular, and the flow guide rib 3 is connected to the inner wall of the tube body 1 in an integral form or in a detachable connection.

[0037] Specifically, the guide ribs 3 are preferably 4-6 in number and made of wear-resistant and corrosion-resistant materials, such as stainless steel or high-performance engineering plastics. The surface of the guide ribs 3 is smooth to reduce frictional damage to the fabric. The rib height is 1 / 8-1 / 12 of the pipe diameter. Through forced flow diversion, the dye liquor flow is divided, reducing the radial velocity component of the fluid and further preventing dye liquor swirling. At the same time, the connection between the guide ribs 3 and the inner wall of the pipe body 1 can be integrally formed to ensure the stability and reliability of the structure; or it can be detachable for easy replacement when the ribs are worn or damaged. The irregular cross-sectional structure of the pipe body 1 and the structure of the guide ribs 3 effectively prevent dye liquor swirling, allowing the dye liquor to act evenly on the fabric, improving the uniformity of fabric dyeing and reducing the defect rate caused by uneven dyeing.

[0038] It is worth mentioning that if the guide rib 3 and the pipe body 1 are integrally formed, the guide rib 3 is directly formed during the manufacturing process of the pipe body 1 using a mold or special processing technology; if a detachable connection method is used, an installation groove is pre-machined on the inner wall of the pipe body 1, the manufactured guide rib 3 is installed in the installation groove, and fixed with bolts or other fixing methods. During installation, ensure that the helix angle of the guide rib 3 is between 15° and 30°, and that the height of the guide rib 3 meets the requirement of 1 / 8 to 1 / 12 of the pipe diameter.

[0039] To further prevent water flow vortices, a turbulence suppression ring 4 is provided at the outlet section 12 of the pipe body 1. The inner diameter of the turbulence suppression ring 4 is larger than the inner diameter of the pipe body 1, and several guiding holes 41 are evenly distributed around its circumference. The turbulence suppression ring 4 blocks the impact of the water flow, and at the same time, the guiding holes 41 on the turbulence suppression ring 4 divert the water flow, reducing the tangential velocity component of the fluid, thereby preventing the dye liquor from swirling.

[0040] In this embodiment, as Figure 4 , 5 As shown, the cross-section of tube 1 is an asymmetrical polygonal structure with 5-8 sides.

[0041] Specifically, the interfaces at both ends of the tube 1 are connected to the cylinder of the dyeing machine using flange-type quick-release interfaces. The asymmetrical polygon can effectively prevent the water flow from generating vortices, and at the same time, it can also disrupt the symmetry of the circumferential flow of the dye liquor. Combined with the guide ribs 3, the proportion of axial flow is increased, effectively suppressing the rotation trend of the dye liquor.

[0042] It is worth mentioning that when the cross-section of the tube 1 is elliptical, it is preferable to arrange the major axis vertically, and the length-to-width ratio is controlled between 1.5:1 and 2.5:1.

[0043] In summary, the anti-swirling guide tube structure for high-temperature and high-pressure dyeing machines of this invention effectively solves the problems existing in the current guide tubes through its innovative irregular cross-section structure, guide rib 3 structure, and fabric guiding mechanism 2. It has significant economic and social benefits and is worthy of widespread application in the textile printing and dyeing industry.

[0044] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A buffer rectifier tube for guiding fabric in a low liquor ratio dyeing machine, comprising a tube body, characterized in that, One end of the tube is an inlet section, and the other end is an outlet section. The inlet section of the tube is connected to a fabric guiding mechanism, which includes a slide rail bracket with scale markings, a spreader for adjusting according to the fabric width, and an adjusting component for adjusting the spacing of the spreaders. The slide rail bracket is circumferentially arranged on the outer wall of the tube, and a guide groove is provided on the slide rail bracket. The spreader includes two sets of ceramic guide rollers arranged in a figure-eight shape. The two sets of ceramic guide rollers are symmetrically inclined to form a gradually expanding channel. One end of the ceramic guide roller is slidably installed in the guide groove through a bearing seat and is connected to the adjusting component for transmission, so as to realize the synchronous adjustment of the spacing between the two sets of ceramic guide rollers.

2. The buffer rectifier tube for guiding fabric in a low liquor ratio dyeing machine according to claim 1, characterized in that, The angle between the central axis of the ceramic guide roller and the axis of the tube body is 8°-15°.

3. The buffer rectifier tube for guiding fabric in a low liquor ratio dyeing machine according to claim 1, characterized in that, The adjusting assembly includes a worm gear, an adjusting screw, and an adjusting nut; the worm gear meshes with the worm portion of the adjusting screw, one end of the adjusting screw is fixed to the outside of the slide rail bracket, and the other end passes through the slide rail bracket and is threaded into the bearing seat; the adjusting nut is sleeved on the end of the adjusting screw.

4. The buffer rectifier tube for guiding fabric in a low liquor ratio dyeing machine according to claim 1, characterized in that, Multiple dovetail grooves are spaced apart along the axial direction on the inner wall of the tube, and each dovetail groove is fitted with a flow guide rib.

5. The buffer rectifier tube for guiding fabric in a low liquor ratio dyeing machine according to claim 4, characterized in that, The cross-section of the flow guide rib is semi-circular, and the flow guide rib is connected to the inner wall of the tube in an integral or detachable manner.

6. The buffer rectifier tube for guiding fabric in a low liquor ratio dyeing machine according to claim 1, characterized in that, The outlet section of the pipe is provided with a turbulence suppression ring. The inner diameter of the turbulence suppression ring is larger than the inner diameter of the pipe, and several flow guiding holes are evenly distributed around the ring.

7. The buffer rectifier tube for guiding fabric in a low liquor ratio dyeing machine according to claim 1, characterized in that, The cross-section of the tube is an asymmetrical polygonal structure, and the polygon has 5-8 sides.

8. The buffer rectifier tube for guiding fabric in a low liquor ratio dyeing machine according to claim 1, characterized in that, The cross-section of the tube is elliptical, and the ratio of the major axis to the minor axis of the ellipse is 1.5:1 to 2.5:1.

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