Vertical buffering and rectifying cloth guide pipe

Abstract

The utility model relates to the technical field of textile printing and dyeing equipment, in particular to a vertical buffering and rectifying cloth guide pipe which comprises a pipe body with a hollow inner cavity, and a water inlet and a water outlet are formed in the two ends of the pipe body respectively. A flow adjusting device is arranged at the end, close to the water inlet, of an inner cavity of the pipe body. A buffer plate used for dispersing water pressure is further arranged in the inner cavity of the pipe body, the buffer plate is obliquely arranged in the pipe body, and a plurality of flow guide holes are formed in the buffer plate; the flow guide holes are distributed in an inclined and equidistant array mode, and the inclined direction of the flow guide holes is matched with the water flow direction. The flow adjusting device is arranged in the vertical cloth guide pipe, water flow in the cloth guide pipe can be effectively adjusted, water pressure is dispersed through the buffer plate, impact of the water pressure on cloth is reduced, and therefore snagging of the cloth in the conveying process is avoided, the dyeing effect and the dyeing efficiency are improved, and the quality of finished products is improved.

Description

Technical Field

[0001] This utility model relates to the field of textile printing and dyeing equipment technology, and in particular to a vertical buffer rectifier guide tube. Background Technology

[0002] Currently, dyeing machines basically include a main cylinder, a fabric transfer tank, a fabric roller, a fabric motor, nozzles, and a guide tube. Fabric circulation is achieved by the nozzles and fabric rollers driving the fabric from the tail outlet end into the dyeing tank. The guide tube is designed in the shape of a pipe, with a recessed part in the tube body that can be filled with dye liquor. The inlet end of the guide tube is not directly connected to the nozzle outlet. A pivot body is provided on the bottom surface of the leading edge of the guide tube. The outlet end is not directly connected to the main cylinder or the fabric transfer tank. A motor drives a drive device to drive the guide tube to swing left and right.

[0003] Currently, Chinese patent CN213925444U discloses a dyeing machine guide tube, including a fabric dye liquor inlet, an upper curved plate, and a lower curved plate. The upper and lower curved plates meander to form a tubular flow path, with a fabric dye liquor outlet at the end of the tubular flow path. Water spray nozzles are distributed on the surface of the lower curved plate, increasing sequentially from the fabric inlet towards the fabric dye liquor outlet. A base plate is also included, installed below the lower curved plate, forming a dye liquor accumulation chamber between the base plate and the lower curved plate. The tubular flow path connects to the dye liquor accumulation chamber through the water spray nozzles. This design utilizes multiple sets of water spray nozzles in the guide tube to spray high-pressure water into the guide tube, lifting the fabric inside and causing it to expand weft-wise to both sides, reducing creases and improving dyeing quality. However, in actual production applications, due to the structural limitations of the back-bend tube, during the fabric guiding process, the water pressure has a greater impact on the inner wall of the back-bend tube than on the outer wall. As a result, when the fabric is transported inside the square tube, it is easily affected by the water pressure, leading to problems such as snagging, poor fabric dyeing effect and low dyeing efficiency, and poor finished product quality. 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 vertical buffer rectifier fabric guide tube, which aims to solve the problems of fabric snagging and low dyeing efficiency caused by uneven water pressure distribution during the fabric guiding process in existing vertical fabric guide tubes. It also has the advantages of effectively regulating water flow, buffering water pressure, rectifying water flow, and improving dyeing uniformity and stability.

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

[0006] A vertical buffer rectifier guide pipe includes a pipe body with a hollow inner cavity, with an inlet and an outlet at both ends of the pipe body, respectively. A flow regulating device is provided at the end of the inner cavity of the pipe body near the inlet. The flow regulating device includes a fixed plate, an adjusting plate, and an opening / closing controller. One end of the fixed plate is fixedly connected to the inner wall of the pipe body, and the other end is movably connected to the adjusting plate via the opening / closing controller. The water flow rate is controlled by rotating the opening / closing angle of the adjusting plate on the fixed plate. A buffer plate for dispersing water pressure is also provided in the inner cavity of the pipe body. The buffer plate is obliquely positioned within the pipe body and has multiple flow guide holes. The flow guide holes are distributed in an obliquely equidistant array, and the inclination direction of the flow guide holes is adapted to the water flow direction.

[0007] Preferably, the pipe body has a vertical L-shaped structure, and the middle part of the pipe body is provided with an arc-shaped transition section for guiding the water flow to turn smoothly, and the buffer plate is provided on the inner side of the arc-shaped transition section.

[0008] Preferably, a dyeing liquid cavity is formed between the inner side of the arc-shaped transition section between the buffer plate and the tube body, and the dyeing liquid cavity is connected to the inner cavity of the tube body through a guide hole.

[0009] Preferably, the buffer plate is a rectangular structure, and the rectangular buffer plate is fixed at an angle to the inside of the arc-shaped transition section, with the angle of inclination of the rectangular buffer plate being 30°-60°.

[0010] Preferably, the buffer plate has an arc-shaped structure, the arc-shaped buffer plate is fitted to the inner wall of the arc-shaped transition section, and the two ends of the arc-shaped buffer plate are fixedly connected to the inner wall of the pipe by bolts.

[0011] Preferably, the diameter of the guide hole is 5-10 mm, and the inclination angle of the guide hole is 15°-45°.

[0012] Preferably, flanges are provided at both ends of the pipe body at the inlet and outlet, and the flanges are integrally formed with the pipe body, and the pipe body is connected to the external pipeline through the flanges.

[0013] Preferably, the opening and closing controller is a hinge with angle adjustment or a movable corner bracket.

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

[0015] This invention effectively disperses water pressure and reduces the impact of water pressure on the fabric by setting a buffer plate inside the vertical guide pipe. At the same time, it achieves precise control of water flow by combining it with a flow regulating device, thereby effectively solving the problem of snagging during the fabric transmission process. This not only improves the dyeing effect and dyeing efficiency, but also enhances the quality of the finished product. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of the vertical buffer rectifier guide tube of this utility model;

[0017] Figure 2 This is a top view of the vertical buffer rectifier guide tube of this utility model;

[0018] Figure 3 This is a cross-sectional view of the rectangular buffer plate in this utility model;

[0019] Figure 4 This is a cross-sectional view of the arc-shaped buffer plate in this utility model;

[0020] Figure 5 yes Figure 3 Enlarged view of the structure at point a.

[0021] Explanation of the reference numerals in the figure:

[0022] 1. Pipe body; 11. Inlet; 12. Outlet; 13. Arc-shaped transition section; 2. Flow regulating device; 21. Fixing plate; 22. Adjusting plate; 23. Opening and closing controller; 3. Buffer plate; 31. Guide hole; 4. Dyeing liquid chamber; 5. Flange. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] 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.

[0026] The following is in conjunction with the appendix Figure 1-5 The present invention will provide a more detailed description of an embodiment of a vertical buffer rectifier guide tube.

[0027] A vertical buffer rectifier guide tube, such as Figures 1 to 3 As shown, the device includes a pipe body 1 with a hollow inner cavity. The two ends of the pipe body 1 are respectively set as an inlet 11 and an outlet 12. A flow regulating device 2 is provided at the end of the inner cavity of the pipe body 1 near the inlet 11. The flow regulating device 2 includes a fixed plate 21, an adjusting plate 22 and an opening and closing controller 23. One end of the fixed plate 21 is fixedly connected to the inner wall of the pipe body 1, and the other end is movably connected to the adjusting plate 22 through the opening and closing controller 23. The water flow rate is controlled by rotating the opening and closing angle of the adjusting plate 22 on the fixed plate 21. A buffer plate 3 for dispersing water pressure is also provided in the inner cavity of the pipe body 1. The buffer plate 3 is obliquely arranged in the inner cavity of the pipe body 1, and multiple guide holes 31 are opened on the buffer plate 3. The guide holes 31 are distributed in an obliquely equidistant array, and the inclination direction of the guide holes 31 is adapted to the water flow direction.

[0028] Specifically, the regulating plate 22 has a fan-shaped structure and is made of stainless steel. One end of the regulating plate 22 is rotatably connected to the fixed plate 21 via the opening and closing controller 23. The fixed plate 21 is installed at the end of the pipe body 1 near the inlet 11 and is fixed to the inner wall of the pipe body 1 by welding. The opening and closing controller 23 is a hinge or movable angle bracket with angle adjustment, and is connected to an external handwheel or electric actuator via a rotating shaft. The handwheel side is provided with an angle scale (0°-90°), and each 15° rotation corresponds to a 10% increase or decrease in flow rate. The electric actuator can be automatically adjusted through PLC programming. When water flows in through the inlet 11, the opening and closing angle of the regulating plate 22 is automatically adjusted according to the actual production needs, thereby controlling the water flow rate of the pipe body 1. When the guide pipe is running, the water flow carries the fabric through the buffer plate 3. The buffer plate 3 can disperse the impact force of the water flow, avoid local high pressure pulling the fabric fibers, and avoid the problem of the fabric getting snagged. At the same time, the guide holes 31 on the buffer plate 3 disperse the concentrated water pressure into multiple small eddies, so that the dye liquor and the fabric can come into more full contact, and reduce uneven dye deposition.

[0029] In this embodiment, as Figure 2 As shown, the pipe body 1 has a vertical L-shaped structure. The middle part of the pipe body 1 is provided with an arc-shaped transition section 13 for guiding the water flow to turn smoothly. The buffer plate 3 is located on the inner side of the arc-shaped transition section 13.

[0030] Specifically, the pipe body 1 is made of corrosion-resistant stainless steel (such as 316L) or high-strength engineering plastic (such as PPS), with the inner wall polished to reduce friction. The diameter of the pipe body 1 is 200-400mm, and the length is customized according to the dyeing machine model, typically 1.5-3m. In addition, the ratio of the radius of curvature of the arc transition section 13 to the diameter of the pipe body 1 is 1.5:1 to ensure a smooth water flow and reduce turbulence.

[0031] In this embodiment, a dyeing liquid cavity 4 is formed between the inner side of the arc-shaped transition section 13 of the buffer plate 3 and the tube body 1, and the dyeing liquid cavity 4 is connected to the inner cavity of the tube body 1 through the guide hole 31.

[0032] Specifically, the dyeing liquid chamber 4 can divert the water flow after the buffer plate 3 is diverted, and further guide the water flow to be evenly distributed by adding a guide groove on the inner wall of the dyeing liquid chamber 4 in the arc transition section 13. The depth of the guide groove is set to 2-3mm. When the dyeing liquid flows through the dyeing liquid chamber 4, it flows back to the inner cavity of the pipe body 1 through the inclined guide hole 31, and further guides the water flow to be evenly distributed in conjunction with the guide groove to ensure that the fabric is transported smoothly in the pipe body 1.

[0033] In this embodiment, the diameter of the guide hole 31 is 5-10 mm, and the inclination angle of the guide hole 31 is 15°-45°.

[0034] In this embodiment, as Figure 3 As shown, the buffer plate 3 is a rectangular structure. The rectangular buffer plate 3 is fixed at an angle to the inside of the arc transition section 13, and the angle of inclination of the rectangular buffer plate 3 is 30°-60°.

[0035] Specifically, when using a rectangular buffer plate 3, its installation position is tilted and fixed on the inner side of the curved center line of the arc transition section 13, offset from the inlet 11. In this utility model, the tilt angle of the rectangular buffer plate 3 is preferably 45°, so that it forms a counter-current with the water flow direction. Furthermore, the arrangement of the guide holes 31 on the rectangular buffer plate 3 is as follows: the hole spacing is twice the hole diameter (for example, 8mm hole diameter, 16mm spacing), forming an alternating diamond array. The tilt angle of the guide holes 31 is preferably 30°, and the orientation is consistent with the direction of the inlet 11 and the outlet 12, so that the water flow is dispersed to form small vortices, avoiding the problem of excessive water flow impact causing the fabric to snag.

[0036] In this embodiment, as Figure 4 As shown, the buffer plate 3 has an arc-shaped structure. The arc-shaped buffer plate 3 is set to fit the inner wall of the arc-shaped transition section 13, and the two ends of the arc-shaped buffer plate 3 are fixed to the inner wall of the pipe body 1 by bolts.

[0037] Specifically, the arc-shaped buffer plate 3 is installed to conform to the curvature of the inner wall of the arc-shaped transition section 13, covering 2 / 3 of the inner curved surface, and extending 50mm from the outlet 12 at its end. The advantage of using the arc-shaped buffer plate 3 is that it reduces the space occupied by the buffer plate 3 within the inner cavity of the pipe body 1, facilitating smooth fabric transport. Simultaneously, the guide holes 31 on the arc-shaped buffer plate 3 are evenly distributed along the arc's centerline. The guide holes 31 have a diameter of 6mm, a spacing of 20mm, and their axes form a 15° angle with the centerline of the pipe body 1, creating a spiral flow path. Furthermore, the buffer plate 3 is fixed to the inner wall of the pipe body 1 at both ends with bolts featuring rubber gaskets, with a bolt spacing of 150mm, facilitating disassembly and maintenance.

[0038] It is worth noting that the edges of the guide hole 31 are chamfered to avoid the concentration of water flow shear force, and the flow velocity inside the hole is controlled at 2-3 m / s to ensure that the water flow is dispersed into a stable vortex. By changing the type of buffer plate 3 (rectangular / arc) and adjusting the stamping hole parameters, it can be adapted to special materials such as high-elasticity knitted fabrics and heavy denim fabrics; and the two buffer plate 3 structures can be selected according to the dyeing machine model to improve compatibility.

[0039] In this embodiment, flanges 5 are provided at both ends of the pipe body 1 at the inlet 11 and the outlet 12. The flanges 5 and the pipe body 1 are integrally formed, and the pipe body 1 is connected to the external pipeline through the flanges 5.

[0040] Specifically, in order to facilitate the connection of the guide pipe to the external pipe body 1, flanges 5 (standard DN150-DN250) are welded to the ends of the inlet 11 and outlet 12. The flanges 5 are connected to the external pipeline by bolts and are sealed by setting a sealing ring. The sealing ring is made of high temperature resistant fluororubber to ensure that there is no leakage at the interface connection.

[0041] The operating process of the guide tube of this utility model:

[0042] Initial adjustment: According to the fabric type (such as cotton, polyester) and dyeing process requirements, set the opening degree of the flow regulating plate 22 via handwheel or PLC (for example, 60° for cotton fabric and 45° for polyester fabric).

[0043] Water flow control: After the dye liquor enters from the inlet 11, it is throttled by the regulating plate 22, and the flow velocity is reduced from 3m / s to 1.5-2m / s, thereby reducing the initial impact force.

[0044] Buffering and rectification: When the water flow enters the arc-shaped transition section 13, it impacts the guide holes 31 on the surface of the buffer plate 3, and the concentrated water flow is divided into multiple small eddies, and the pressure peak drops by 40% to 50%.

[0045] Fabric transport: The fabric is stretched out in the buffered uniform water flow and passes through pipe 1, reducing the snagging rate from 8% in traditional fabric guide pipes to below 1.5%.

[0046] 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 covered within the scope of protection of this application.

Claims

1. A vertical buffer rectifier guide pipe, comprising a pipe body having a hollow inner cavity, wherein the two ends of the pipe body are respectively configured as an inlet and an outlet; characterized in that, A flow regulating device is provided at one end of the inner cavity of the pipe near the inlet. The flow regulating device includes a fixed plate, an adjusting plate, and an opening and closing controller. One end of the fixed plate is fixedly connected to the inner wall of the pipe, and the other end is movably connected to the adjusting plate through the opening and closing controller. The water flow is controlled by rotating the opening and closing angle of the adjusting plate on the fixed plate. A buffer plate for dispersing water pressure is also provided in the inner cavity of the pipe. The buffer plate is obliquely arranged in the pipe and has multiple flow guide holes. The flow guide holes are distributed in an obliquely equidistant array, and the inclination direction of the flow guide holes is adapted to the water flow direction.

2. The vertical buffer rectifier guide tube according to claim 1, characterized in that, The pipe body has a vertical L-shaped structure, and an arc-shaped transition section is provided in the middle of the pipe body to guide the water flow to turn smoothly. The buffer plate is located on the inner side of the arc-shaped transition section.

3. The vertical buffer rectifier guide tube according to claim 2, characterized in that, A dyeing liquid cavity is formed between the inner side of the arc-shaped transition section between the buffer plate and the tube body, and the dyeing liquid cavity is connected to the inner cavity of the tube body through a guide hole.

4. The vertical buffer rectifier guide pipe according to claim 3, characterized in that, The buffer plate is a rectangular structure, and the rectangular buffer plate is fixed at an angle to the inside of the arc transition section, with the angle of inclination of the rectangular buffer plate being 30°-60°.

5. The vertical buffer rectifier guide tube according to claim 3, characterized in that, The buffer plate has an arc-shaped structure, and the arc-shaped buffer plate is set to fit the inner wall of the arc-shaped transition section. The two ends of the arc-shaped buffer plate are fixed to the inner wall of the pipe by bolts.

6. The vertical buffer rectifier guide tube according to claim 1, characterized in that, The diameter of the guide hole is 5-10 mm, and the inclination angle of the guide hole is 15°-45°.

7. The vertical buffer rectifier guide pipe according to claim 1, characterized in that, The pipe body is equipped with flanges at both ends of the inlet and outlet. The flanges are integrally formed with the pipe body, and the pipe body is connected to the external pipeline through the flanges.

8. The vertical buffer rectifier guide tube according to claim 1, characterized in that, The opening and closing controller is a hinge with angle adjustment or a movable corner bracket.

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