Active printing device and process for seersucker fabric

Abstract

The invention belongs to the technical field of textile printing and dyeing, and particularly relates to a seersucker fabric reactive printing device and technology.The seersucker fabric reactive printing device comprises a printing box, a conveyor and a printing machine are assembled in the printing box, and a heating box is correspondingly arranged on one side of the printing box. An active penetrating type three-dimensional heating flow field is constructed, steam circulation dead corners are physically collapsed, the fundamental problem that a concave-convex structure is heated unevenly is solved, specifically, concave-convex textures of fabric are preliminarily opened through mechanical tension generated by C-shaped bending, on the basis, steam is jetted from the left direction, the upper direction and the right direction by the segmented directional steam assembly, and the heating effect of the fabric is greatly improved. And a forced pressure difference is formed in the thickness direction of the fabric in combination with negative pressure suction at the bottom of the arc-shaped piece, and the pressure difference forces the steam flow not only to stay on the surfaces of the bulges but to penetrate through the fibers to forcibly extrude in and replace cold air retained in the concave gaps.

Description

Technical Field

[0001] This invention belongs to the field of textile printing and dyeing technology, and particularly relates to an active printing device and process for seersucker fabric. Background Technology

[0002] Seersucker fabrics can be classified into mechanically wrinkled, chemically shrinking, and warp and weft density difference types based on the mechanism of their texture formation. Among them, mechanically wrinkled fabrics are further subdivided into embossed wrinkled, pressed and pleated, and crumpled and shaped types.

[0003] The working principle of reactive printing on seersucker fabric is as follows: First, the reactive dye paste is precisely transferred to a preset area on the fabric surface through the printing unit. Then, the printed fabric is transported to the steaming device through the fabric guiding system. Next, high-temperature saturated steam is generated by the steam generation system, so that the fabric is in a closed steaming environment with preset temperature and humidity. During this process, the reactive dye molecules are activated and diffuse into the fiber, and finally form covalent bonds with the fiber molecules to complete the fixation. Finally, the unfixed floating color on the fabric surface is removed by the post-processing unit, completing the entire printing process.

[0004] The existing reactive printing process for seersucker fabric has the following core technical problems in the high-temperature steaming heating stage: The unique textured structure of seersucker fabric leads to significant differences in its contact with hot steam during steaming. The raised parts of the fabric surface are directly exposed to the high-temperature steam environment, with a large heat exchange area and high heat transfer efficiency, enabling it to quickly reach the preset steaming temperature. However, the concave and crevices form dead zones for steam circulation due to their closed structure, making it difficult for high-temperature steam to penetrate quickly. Furthermore, the heat in these areas is easily blocked by trapped cold air, significantly reducing heat transfer efficiency and causing the temperature in the concave areas to rise slowly. This results in obvious color differences in the printed areas. Secondly, seersucker fabrics for different purposes vary significantly in weight and thickness. Existing steaming equipment generally uses fixed guide paths and constant steam parameters, which cannot adapt to the differentiated needs of fabrics with different thicknesses. For thick fabrics, the fixed path is insufficient to open their tight structure, exacerbating the heating problem in the concave areas. For thin fabrics, there is a risk of overheating or mechanical stretching deformation. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an active printing device and process that can effectively eliminate the heat dead zone in the steaming process of seersucker fabric and adapt to fabrics of different thicknesses.

[0006] To achieve the above objectives, the technical solution of the present invention is implemented as follows: This invention discloses a reactive printing device for seersucker fabric, including a printing box, in which a conveyor and a printing machine are installed. A heating box is provided on one side of the printing box, and a high-temperature steam engine and an arc-shaped component are installed in the heating box. The arc-shaped component is C-shaped, and an air extractor is provided below the arc-shaped component. A cavity is opened on the top surface of the arc-shaped component. The air inlet of the air extractor is connected to the bottom of the arc-shaped component through an air inlet pipe, and the air inlet pipe is connected to the cavity on the top surface of the arc-shaped component. A segmented directional steam assembly is disposed on the arc-shaped component and is connected to the high-temperature steam engine; The arc-shaped component is also equipped with multiple transport rollers; An adjustment component, located inside the heating chamber, is used to drive the arc-shaped component to change its posture.

[0007] Furthermore, the segmented directional steam assembly includes: The fixing base, fixed inside the heating box, has a U-shaped structure; Branch plate, which is mounted on top of the mounting base; The first arc-shaped end is fixed below the branch plate, corresponding to the top of the middle section of the arc-shaped component; The second arc-shaped end is located to the left of the first arc-shaped end and corresponds to the entry section of the arc-shaped component; The third arc-shaped end is located to the right of the first arc-shaped end and corresponds to the output segment of the arc-shaped component; A spray nozzle is provided below the first arc-shaped end, the second arc-shaped end, and the third arc-shaped end; The first steam pipe connects the high-temperature steam engine to the branch plate; The second steam pipe has two sets, which are respectively connected to the branch plate and the second arc-shaped end, and the branch plate and the third arc-shaped end.

[0008] Furthermore, the nozzle at the first arc-shaped end sprays along the vertical direction, the nozzle at the second arc-shaped end sprays along the right direction, and the nozzle at the third arc-shaped end sprays along the left direction.

[0009] Furthermore, multiple transport rollers are arranged at intervals on the surface of the arc-shaped part along the fabric running direction, wherein the installation height of the transport rollers located at the left and right ends of the arc-shaped part gradually increases in the direction toward the center of the arc-shaped part.

[0010] Furthermore, the surface of the transport roller is uniformly distributed with a flexible array of protrusions that are adapted to the texture of the seersucker fabric.

[0011] Furthermore, the arc-shaped component includes a first arc-shaped plate, and a second arc-shaped plate and a third arc-shaped plate respectively rotatably connected to the left and right ends of the first arc-shaped plate. The adjustment assembly includes: two sets of first electric push rods, the cylinder ends of which are respectively rotatably connected to the left and right sides of the fixed base, and the push rod ends of which are respectively disposed below the second arc-shaped plate and the third arc-shaped plate. The heating box is equipped with a steam volume regulating component on its top.

[0012] Furthermore, the steam quantity regulating component includes: A sealing plate is fixed to the outside of the first arc-shaped plate and is fixedly connected to the outside of the first arc-shaped end; The adjustment base is located below the heating box; Two sets of adjustment plates are vertically installed at the front and rear ends of the adjustment base, respectively, and their top ends are slidably connected to the side wall of the fixed base through a slide rail mechanism. An adjustment motor is installed on top of the adjustment base; A bearing plate is fixed between the two sets of adjusting plates; The lead screw has one end fixedly connected to the output end of the regulating motor, and the other end passes through the bearing hole on the bearing plate and is threadedly connected to the threaded block provided at the bottom of the fixed seat. The reset spring rod has its cylinder end fixed to the top of the heating box, and one end of its rod extends downward to install a rod ball, with the bottom surface of the rod ball pressing against the surface of the branch plate. A steam flow valve is installed on the output pipeline of the high-temperature steam engine; The valve port is located inside the valve body of the steam flow valve; The valve seat is slidably disposed in the valve cavity of the steam flow valve, and its sliding stroke can partially cover the valve port; The end of the return spring rod slides upward through the wall of the heating box and is then fixedly connected to the valve seat.

[0013] Furthermore, connecting plates are rotatably connected between the end of the second arc-shaped end and the free end of the second arc-shaped plate, as well as between the end of the third arc-shaped end and the free end of the third arc-shaped plate. The second arc-shaped end and the third arc-shaped end are rotatably connected to the left and right sides of the first arc-shaped end, respectively, with the end closest to the first arc-shaped end as the pivot point.

[0014] This application also discloses a reactive printing process for seersucker fabric, applied to the reactive printing apparatus for seersucker fabric as described above, comprising the following steps: The seersucker fabric is fed into the printing box, and after being printed by the printing machine via a conveyor, the wet fabric is intermittently transported to the heating box on the same side to enter the steaming process. When the fabric is placed in the heating box, the thickness detector measures the thickness and transmits it to the control system. The system then calculates the optimal matching parameters for the posture of the curved part and the steam flow rate. The control system drives the first electric actuator to shorten, causing the arc-shaped part to form a V-shaped angle to open the fabric gap. At the same time, it adjusts the motor to drive the lead screw to rotate forward, raising the steam assembly and widening the steam valve port to increase the steam supply. The control system drives the first electric push rod to extend, making the arc of the arc-shaped part smoother, adjusting the motor to reverse and reduce the height of the steam assembly, and the reset spring rod drives the valve port to narrow, reducing the steam flow. The fabric is covered on the surface of the curved part and transported by a conveyor roller with gradually increasing height. Lateral pretension is applied to the material, and after flattening and eliminating wrinkles, it enters the core heating zone. Flexible protrusions on the surface of the transport roller are embedded in the recesses of the fabric. The drive motor drives the transport roller to rotate synchronously, combing the fibers in the recesses and optimizing the steam permeation conditions. The steam generated by the high-temperature steam engine is distributed to the first, second, and third arc-shaped ends through pipes and branch plates to form a three-way directional injection. Combined with the negative pressure suction of the vacuum pump, the steam is vaporized through penetration.

[0015] Compared with existing technologies, the reactive printing device and process for seersucker fabric described in this invention have the following advantages: 1. This invention constructs an active, penetrating, three-dimensional heating flow field through the synergistic effect of C-shaped arc bending, three-segment multi-directional steam injection, and bottom negative pressure suction. This physically eliminates the dead zones of steam flow and solves the fundamental problem of uneven heating in concave-convex structures. Specifically, the mechanical tension generated by the C-shaped bending initially opens up the concave-convex texture of the fabric. On this basis, the segmented directional steam component injects steam from the left, top, and right directions, and combined with the negative pressure suction at the bottom of the arc-shaped component, a forced pressure difference is formed in the thickness direction of the fabric. This pressure difference forces the steam flow to no longer just stay on the raised surface, but penetrates the fiber, forcibly squeezing in and replacing the cold air trapped in the concave gaps. Through the combination of multi-angle surrounding heating and forced penetration circulation, each surface of the concave-convex texture of the fabric can be effectively washed and heated by steam, fundamentally bridging the temperature difference between the raised and concave areas and eliminating quality defects such as printing color difference and poor color fastness caused by this.

[0016] 2. This invention achieves precise adaptive processing of seersucker fabrics of different thicknesses through intelligent closed-loop control of thickness detection, posture adjustment, and flow linkage. Specifically, the thickness of the fabric is sensed in real time by a thickness detector. For thick fabrics, the curved component is driven to form a compact V-shaped bend and the steam flow is increased in conjunction with it. This uses stronger mechanical force to pry open its tight structure and higher energy to ensure deep penetration. For thin fabrics, the bend is adjusted to a gentle U-shape and the steam flow is reduced in conjunction with it. This provides gentle support to avoid damage, enabling the same device to automatically and accurately adapt to a full range of seersucker fabrics from extremely thin to extremely thick.

[0017] 3. This invention, through the design of gradually raised transport rollers and a combing surface with flexible protrusions, simultaneously completes the microscopic pretreatment and macroscopic morphological optimization of the fabric during the transport process, creating near-ideal initial conditions for uniform heating. The gradually raised installation height of the transport rollers located at both ends of the arc-shaped component causes the fabric to form a continuously changing arch in the transverse direction, applying transverse pretension and effectively preventing wrinkles. At the same time, the flexible protrusion array on the surface of the transport rollers embeds into the fabric depressions during rotation, continuously directional combing and flattening the microfibers. The combination of these two aspects actively makes the micro-texture more open and regular, and the macroscopic morphology more stable and relaxed, before the fabric enters the core steaming zone. This not only significantly reduces the resistance to subsequent steam penetration, but also allows the impact of multi-angle steam flow to act on the fabric in a more uniform and predictable manner. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a longitudinal cross-sectional view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the arc-shaped component of the present invention; Figure 4 This is a schematic diagram of the adjustment component of the present invention; Figure 5 This is a schematic diagram of the first arc-shaped plate, the second arc-shaped plate, and the third arc-shaped plate of the present invention; Figure 6 yes Figure 2 A magnified view of part A in the image.

[0019] The markings in the diagram are as follows: 1. Printing box; 10. Conveyor; 11. Printing machine; 12. Heating box; 13. High-temperature steam engine; 14. Curved component; 141. Exhaust fan; 142. First curved plate; 143. Second curved plate; 144. Third curved plate; 15. Conveyor roller; 2. Segmented directional steam assembly; 21. Fixing base; 210. Branch plate; 22. First arc-shaped end; 23. Second arc-shaped end; 24. Third arc-shaped end; 25. First steam pipe; 26. Second steam pipe; 3. Adjustment assembly; 31. First electric actuator; 32. Sealing plate; 33. Adjustment seat; 34. Adjustment plate; 35. Adjustment motor; 36. Bearing plate; 37. Lead screw; 38. Return spring rod; 39. Steam flow valve; 391. Valve port; 392. Valve seat; 311. Connecting plate. Detailed Implementation

[0020] 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.

[0021] See Figures 1-2 As shown, the present invention provides a reactive printing device for seersucker fabric, including a printing box 1, a conveyor 10 and a printing machine 11 installed inside the printing box 1, a heating box 12 corresponding to one side of the printing box 1, a high-temperature steam generator 13 and an arc-shaped component 14 installed inside the heating box 12, the arc-shaped component 14 being C-shaped, an air extractor 141 being installed below the arc-shaped component 14, a cavity being formed on the top surface of the arc-shaped component 14, the air inlet end of the air extractor 141 being connected to the bottom of the arc-shaped component 14 through an air inlet pipe, and the air inlet pipe being connected to the cavity on the top surface of the arc-shaped component 14. The segmented directional steam assembly 2 is connected to the arc-shaped component 14 and is connected to the high-temperature steam generator 13. Multiple transport rollers 15 are also provided on the arc-shaped component 14. The printed wet fabric is intermittently fed into the heating box 12 by the transport machine 10 and covered on the surface of the arc-shaped component 14. Under the support of the arc surface, the fabric naturally bends into a C-shape. The mechanical tension generated can physically open its texture and expand some of the recessed gaps, creating the initial conditions for steam penetration.

[0022] See Figures 2-3As shown, the segmented directional steam assembly 2 includes: a fixed base 21, fixed inside the heating box 12, in a U-shaped structure; a branch plate 210, which is installed on top of the fixed base 21; a first arc-shaped end 22, fixed below the branch plate 210, corresponding to the top of the middle section of the arc-shaped component 14; a second arc-shaped end 23, located to the left of the first arc-shaped end 22, corresponding to the inlet section of the arc-shaped component 14; a third arc-shaped end 24, located to the right of the first arc-shaped end 22, corresponding to the outlet section of the arc-shaped component 14; injection ports are provided below the first arc-shaped end 22, the second arc-shaped end 23, and the third arc-shaped end 24; a first steam pipe 25, connecting the high-temperature steam engine 13 and the branch plate 210; and two sets of second steam pipes 26, respectively connecting the branch plate 210 to the second arc-shaped end 23 and the branch plate 210 to the third arc-shaped end 24.

[0023] It should be noted that the saturated steam generated by the high-temperature steam engine 13 is first transported via the first steam pipe 25 to the high-level branch plate 210. The branch plate 210, acting as a primary distribution hub, distributes the steam through two sets of second steam pipes 26 to the second arc-shaped ends 23 and 24 located on either side of the arc-shaped component 14, while simultaneously supplying the first arc-shaped end 22 located in the middle. The steam is finally ejected from specific angled nozzles below each arc-shaped end. The vacuum pump 141 located below the arc-shaped component 14 continues to operate, passing through the arc... The cavity on the top surface of component 14 creates a stable negative pressure zone below the contact interface between the fabric and the curved component 14. The above-mentioned combination of top-down injection and bottom-up suction creates a significant pressure gradient on the fabric. This pressure difference forces the ejected steam to no longer just skim over the raised surface of the fabric, but to seek every path to penetrate downwards. It drives the steam flow to forcefully squeeze into the fiber gaps and recessed crevices that have been initially expanded by the C-shaped bend, effectively replacing and expelling the previously stagnant cold air, thereby physically dismantling the dead zone of steam circulation. See Figure 3 As shown, the nozzle of the first arc-shaped end 22 sprays along the vertical direction, the nozzle of the second arc-shaped end 23 sprays along the right direction, and the nozzle of the third arc-shaped end 24 sprays along the left direction.

[0024] It should be noted that, firstly, the second arc-shaped end 23 is located on the left outer side of the starting point of the C-shaped path, and its nozzle direction is to the right. When the fabric bends to the right to enter, its left side surface is directly facing the steam flow from the nozzle of the second arc-shaped end 23. This right-spraying steam can vertically or at a large angle impact the uneven surface of the fabric facing to the left in the entry section of the arc-shaped part 14 and the left side wall of the recessed gap. This solves the problem that the texture in this area cannot be effectively heated under traditional vertical spraying due to the orientation problem. Subsequently, the first arc-shaped end 22 is positioned at the center of the top arc of the C-shaped path of the arc-shaped component 14. Its nozzle direction is vertically downward. The high-speed steam flow vertically downward can impact the top concave and convex surface of the fabric with the maximum projected area. With the assistance of the negative pressure below, it generates the strongest axial penetration force, which is the main area for transferring core heat energy and ensuring that the dye is fully fixed. Finally, the third arc end 24 is located on the right outer side of the end of the C-shaped path, with its nozzle facing left. When the fabric is about to leave the C-shaped bend, its right side surface is facing the steam flow. This stream of steam that is injected to the left is specifically designed to impact the fabric at a vertical or large angle on the right side wall of the concave and convex surfaces and recessed gaps in the output section, making up for the insufficient coverage of this side by the heating in the first two sections. This invention utilizes a segmented directional steam assembly 2. Through a combination of right-hand spray from the second arc-shaped end 23, downward spray from the first arc-shaped end 22, and left-hand spray from the third arc-shaped end 24, the steam flow forms a dynamic hot air enveloping circle around the C-shaped fabric from three directions. This eliminates any continuous leeward dead zones. Moreover, the impact of the multi-directional steam flow not only heats the surface but also creates complex fluid disturbances towards the center on the fabric surface. On the one hand, this helps to disrupt the cold air trapped in the boundary layer and enhances the kinetic energy of the steam entering the recessed gaps, improving heat and mass transfer efficiency. On the other hand, the two tangential steam flows generated by the right-hand spray from the second arc-shaped end 23 and the left-hand spray from the third arc-shaped end 24 cause the kinetic energy and fluid to converge and collide towards the central area of ​​the fabric width, effectively suppressing the tendency of the fabric to sway in the middle and making it more stably adhere to the surface of the arc-shaped component 14. This facilitates stable negative pressure operation of the vacuum pump 141 and ensures continuous and uniform penetrating airflow.

[0025] See Figure 3 As shown, multiple transport rollers 15 are arranged at intervals on the surface of the arc-shaped part 14 along the fabric running direction. The installation height of the transport rollers 15 located at the left and right ends of the arc-shaped part 14 gradually increases in the direction toward the center of the arc-shaped part 14.

[0026] It should be noted that the height of the transport rollers 15 located at the left and right ends gradually increases from the outside to the inside. When the fabric is covered on them, it will be gradually lifted by the transport rollers 15 from the bottom to the inside and from low to high, applying a lateral and progressive pretension. This force can effectively flatten and stretch the fabric, eliminate potential wrinkles in advance, and allow it to enter the core heating zone in a flat and slightly taut state, thereby improving heating efficiency. Furthermore, the gradually raised transport roller 15 causes the fabric to form a continuous arch of varying sizes in its cross-section. This arch structure creates a continuously changing curved surface on the fabric surface. When the inclined steam flow from the second arc end 23 and the third arc end 24 at a fixed angle impacts this changing curved surface, its effective incident angle is no longer singular across the entire fabric width, but continuously varying. This greatly expands the effective scouring range of a single steam flow on the sidewalls of the textured surface, allowing the texture dead corners that were originally difficult to hit by steam at a specific angle to be naturally exposed to a better impact angle under this dynamically changing curved surface geometry.

[0027] See Figure 3 As shown, the surface of the transport roller 15 is uniformly distributed with a flexible array of protrusions that are adapted to the texture of the seersucker fabric. It is worth noting that a drive motor (not shown separately in the figure) is installed inside the arc-shaped part 14 on one side of the transport roller 15 to drive the transport roller 15 to rotate, and its rotational linear speed is matched with the fabric running speed.

[0028] It is worth noting that the flexible array of protrusions on the surface of the transport roller 15 has a protrusion height of 0.5-3mm and is made of high-temperature resistant silicone. This design ensures that the protrusions can effectively embed into the recesses of most seersucker fabrics and provide moderate combing force without damaging the fibers.

[0029] It should be noted that when the fabric covers the surface of the transport roller 15, the flexible protrusions on the roller surface can be precisely embedded into the recessed gaps of the seersucker. As the transport roller 15 rotates at a speed matching the fabric, the protrusions embedded in the recesses apply a continuous and gentle circumferential combing force to the sidewalls and bottom fibers of the gaps. This combing force is not simply to stretch them, but to directionally organize and flatten the microfibers. It can promptly smooth out the tiny wrinkles caused by tension changes and other reasons, ensuring that when the fabric enters the core steaming zone, it is always exposed to the multidirectional steam flow field in the most regular and most conducive microscopic form for uniform steam penetration. This significantly reduces the initial flow resistance of steam penetration, allowing the high-temperature steam flow from the segmented directional steam assembly 2 to enter the recessed area more smoothly and deeply. Combined with the bottom suction effect, it can more thoroughly replace the cold air.

[0030] See Figures 4-5 As shown, the arc-shaped component 14 includes a first arc-shaped plate 142, and a second arc-shaped plate 143 and a third arc-shaped plate 144 respectively rotatably connected to the left and right ends of the first arc-shaped plate 142. An adjustment component 3 is located inside the heating box 12 and is used to drive the arc-shaped component 14 to change its posture. The adjustment component 3 includes two sets of first electric push rods 31, the cylinder ends of which are rotatably connected to the left and right sides of the fixed base 21 respectively, and the push rod ends of which are respectively located below the second arc-shaped plate 143 and the third arc-shaped plate 144. A steam volume adjustment component is provided on the top of the heating box 12.

[0031] It should be noted that a thickness detector is installed inside the heating chamber 12 to detect the thickness of the fabric. When the fabric enters the heating chamber 12, the thickness detector detects its thickness data. The control system has a verified process model built in, which can instantly calculate the optimal mechanical posture required for the current fabric based on the thickness value. Specifically, for thick fabrics, the control system drives two sets of first electric push rods 31 to shorten synchronously, pushing the second arc plate 143 and the third arc plate 144 respectively, so that they rotate downwards around the hinge point with the first arc plate 142. This causes the C-shaped bend of the entire arc part 14 to have multiple sets of V-shaped angles, so that after the fabric passes through the V-shaped angle, high-temperature steam can cut tangentially, significantly expanding the gaps between fibers and the openings in the recesses, creating a physical channel for steam to reach the interior, and improving the penetration efficiency and depth of steam into the thick fabric structure. It should be noted that the V-shaped angle generated by the adjustment component 3 in this article does not refer to the formation of multiple geometric shapes with sharp edges on the C-shaped path of the curved part 14. This "V-shaped angle" refers to the smooth, continuous large curvature arc segment formed by the increase of the overall curvature of the curved part 14, and does not produce any physical sharp corners. Therefore, it will not cause cutting or snagging damage to the fabric.

[0032] For thin fabrics, the control system drives two sets of first electric actuators 31 to extend synchronously, pulling the second arc plate 143 and the third arc plate 144 to rotate upward, making the arc of the arc part 14 more gentle. The gentle curve allows the steam flow ejected from multiple nozzles above to cover the fabric surface at an angle that is closer to vertical or evenly distributed.

[0033] See Figure 2 , Figure 4 and Figure 5As shown, the steam volume regulating assembly includes: a sealing plate 32, which is fixed to the outside of the first arc-shaped plate 142 and fixedly connected to the outside of the first arc-shaped end 22; an regulating seat 33, which is disposed below the heating box 12; two sets of regulating plates 34, which are vertically installed at the front and rear ends of the regulating seat 33 respectively, and their top ends are slidably connected to the side wall of the fixed seat 21 through a slide rail mechanism; a regulating motor 35, which is installed on the top of the regulating seat 33; a bearing plate 36, which is fixed between the two sets of regulating plates 34; and a lead screw 37, one end of which is fixedly connected to the output end of the regulating motor 35, and the other end passes through the bearing hole on the bearing plate 36 and is connected to the fixed seat 21. A threaded block is threadedly connected to the bottom of the fixed seat 21; a return spring rod 38, the cylinder end of which is fixed to the top of the heating box 12, one end of which extends downward and is fitted with a rod ball, and the bottom surface of the rod ball is pressed against the surface of the branch plate 210; a steam flow valve 39 is installed on the output pipeline of the high-temperature steam engine 13; a valve port 391 is opened inside the valve body of the steam flow valve 39; a valve seat 392 is slidably installed in the valve cavity of the steam flow valve 39, and its sliding stroke can partially cover the valve port 391; the end of the return spring rod 38 slides upward through the box wall of the heating box 12 and is fixedly connected to the valve seat 392.

[0034] It should be noted that when the thickness detector detects the entry of thick fabric, it sends this signal to the control system. The control system then activates the regulating motor 35, which in turn drives the lead screw 37 to rotate forward. The rotational motion of the lead screw 37 is converted into the upward linear motion of the fixed seat 21 through the threaded joint. The fixed seat 21 drives the branch plate 210, the segmented directional steam assembly 2, and the arc-shaped component 14 mounted on it to rise synchronously. As the branch plate 210 rises, its surface presses upward against the ball at the end of the return spring rod 38, which is in contact with it. This pressing force overcomes... The preload of the spring inside the return spring rod 38 pushes the rod upward, which in turn drives the valve seat 392, which is fixed thereto, to slide upward synchronously in the valve cavity of the steam flow valve 39. As the valve seat 392 slides upward, the opening of the valve port 391 expands, which reduces the resistance of the steam pipeline flowing from the high-temperature steam engine 13 to the segmented directional steam assembly 2. This ensures that the high-temperature steam can not only reach the surface of the thick fabric, but also penetrate into its dense fiber layer and deep depressions, thus solving the core quality problems of color difference between the inside and outside and poor color fastness caused by insufficient heat penetration in thick seersucker. Conversely, when a thin fabric is detected, the regulating motor 35 reverses, driving the fixed base 21 to descend as a whole. The pressure of the branch plate 210 on the ball is released, and the reset spring rod 38 resets downward under the action of its internal spring, causing the valve seat 392 to move down. The resistance of the steam pipeline increases, and the steam flow rate and velocity automatically decrease, preventing the thin fabric from being stretched and deformed due to excessive force and overheating, and the hand feel from becoming hard, thus ensuring its inherent soft texture and pattern clarity. Through the aforementioned mechanical linkage, intelligent matching of steam flow and fabric thickness is achieved, thereby ensuring the process effect while achieving the goal of energy saving and consumption reduction.

[0035] See Figure 4 As shown, connecting plates 311 are rotatably connected between the end of the second arc-shaped end 23 and the free end of the second arc-shaped plate 143, as well as between the end of the third arc-shaped end 24 and the free end of the third arc-shaped plate 144. The second arc-shaped end 23 and the third arc-shaped end 24 are rotatably connected to the left and right sides of the first arc-shaped end 22, respectively, with the end closest to the first arc-shaped end 22 as the pivot point.

[0036] It should be noted that when the adjusting component 3 drives the second arc plate 143 to rotate around its hinge point with the first arc plate 142, the free end of the second arc plate 143 pulls the end of the second arc end 23 through the first connecting plate 311. Since the other end of the second arc end 23 is hinged to the first arc end 22, this forces the second arc end 23 to rotate synchronously and proportionally around its hinge point with the first arc end 22. The spatial orientation of the steam nozzle and the spatial posture of the fabric support surface always maintain a preset and fixed relative angle relationship, ensuring that no matter how the equipment adjusts its bending posture, the attack angle of the steam flow is always accurately aligned with the target, avoiding excessive diffusion, energy attenuation, or overheating of the steam flow due to changes in posture.

[0037] A method for reactive printing on seersucker fabric includes the following steps: First, the seersucker fabric to be printed is fed into the printing box 1. The conveyor 10 inside the printing box 1 moves the fabric smoothly, while the printing machine 11 performs reactive printing on the moving fabric to form a preset pattern. After printing, the wet fabric is fed by the conveyor 10 in an intermittent conveying mode into the heating box 12 set on the same side, and enters the steaming and color fixing stage. Second, the moment the fabric enters the heating chamber 12, the thickness detector inside the heating chamber 12 detects the fabric thickness data in real time and transmits the data to the control system. The control system calls the built-in verified process model and instantly calculates the optimal parameters for the current fabric based on the detected thickness value, including the posture adjustment parameters of the arc-shaped part 14 and the steam flow parameters, laying the foundation for accurate adaptation in the subsequent steaming process. Third, the control system drives the two sets of first electric push rods 31 to shorten synchronously, pushing the second arc plate 143 and the third arc plate 144 to rotate downward around the hinge point with the first arc plate 142, so that the arc part 14 bends into a C-shape to form multiple sets of V-shaped angles, expanding the gaps between fabric fibers and the recessed openings. At the same time, the regulating motor 35 is started to drive the lead screw 37 to rotate in the forward direction, driving the fixed seat 21, the segmented directional steam assembly 2 and the arc part 14 to rise as a whole. The branch plate 210 squeezes the reset spring rod 38, pushing the valve seat 392 to move upward to expand the opening of the steam flow valve 39 valve port 391 and increase the steam supply. Fourth, the control system drives the two sets of first electric push rods 31 to extend synchronously, pulling the second arc plate 143 and the third arc plate 144 to rotate upward, so that the curvature of the arc part 14 tends to be gentle. The adjusting motor 35 reverses to drive the fixed seat 21 to descend, and the reset spring rod 38 resets and pushes the valve seat 392 to move downward, reducing the opening of the valve port 391 and reducing the steam flow and velocity to avoid the fabric from being stretched and deformed. Fifth, after adjustment, the fabric covers the surface of the arc-shaped part 14. Multiple transport rollers 15 on the arc-shaped part 14, together with the conveyor 10, drive the fabric to move along the arc-shaped path. The transport rollers 15 located at the left and right ends of the arc-shaped part 14, due to the installation height gradually increasing from the outside to the inside, form a gradual lifting effect on the passing fabric from low to high, apply lateral pretension, flatten the fabric and eliminate wrinkles, so that the fabric enters the core heating area in a flat and slightly taut state. Sixth, the flexible protrusion array on the surface of the transport roller 15 is embedded in the recessed gaps of the bubble yarn. The drive motor drives the transport roller 15 to rotate at a linear speed that matches the running speed of the fabric, applying a circumferential combing force to the fibers in the recesses and sorting out the micro-fiber morphology. Seventh, the saturated steam generated by the high-temperature steam engine 13 is transported to the branch plate 210 through the first steam pipe 25, and distributed by the branch plate 210 to the first arc end 22, the second arc end 23 and the third arc end 24 to form a three-way directional steam injection, which, together with the vacuum pump 141, achieves penetrating steam vaporization.

[0038] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. 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 device for active printing of a crepe fabric, comprising a printing box (1), characterized in that The printing box (1) is provided with a conveyor (10) and a printing machine (11) inside, and a heating box (12) is arranged on one side of the printing box (1), the heating box (12) is provided with a high-temperature steam machine (13) and an arc-shaped part (14) inside, the arc-shaped part (14) is in a C-shaped form, an air extractor (141) is arranged below the arc-shaped part (14), and a cavity is formed in the top surface of the arc-shaped part (14), the air inlet end of the air extractor (141) is connected to the lower portion of the arc-shaped part (14) through an air inlet pipe, and the air inlet pipe is in communication with the cavity in the top surface of the arc-shaped part (14); A segmented directional steam assembly (2) is arranged on the arc-shaped part (14) and communicates with the high-temperature steam machine (13); A plurality of conveying rollers (15) are arranged on the arc-shaped part (14); An adjusting assembly (3) is arranged inside the heating box (12) and is used for driving the arc-shaped part (14) to change the posture.

2. A device for active printing of a bubble-satined fabric according to claim 1, characterized in that, The segmented directional steam assembly (2) comprises: A fixed seat (21) is fixed in the heating box (12) and has a U-shaped structure; A branch plate (210) is arranged on the top of the fixed seat (21); A first arc-shaped end (22) is fixed below the branch plate (210) and corresponds to the middle top of the arc-shaped part (14); A second arc-shaped end (23) is located on the left side of the first arc-shaped end (22) and corresponds to the entering section of the arc-shaped part (14); A third arc-shaped end (24) is located on the right side of the first arc-shaped end (22) and corresponds to the output section of the arc-shaped part (14); The lower portions of the first arc-shaped end (22), the second arc-shaped end (23) and the third arc-shaped end (24) are provided with jet ports; A first steam pipe (25) connects the high-temperature steam machine (13) and the branch plate (210); A second steam pipe (26) is provided with two groups and connects the branch plate (210) and the second arc-shaped end (23) and the branch plate (210) and the third arc-shaped end (24) respectively.

3. A device for active printing of a bubble-satined fabric according to claim 2, characterized in that, The jet ports of the first arc-shaped end (22) are vertically jetted, the second arc-shaped end (23) is jetted in the right direction, and the jet ports of the third arc-shaped end (24) are jetted in the left direction.

4. A bubble jet fabric active printing apparatus according to claim 2, wherein A plurality of conveying rollers (15) are arranged on the surface of the arc-shaped part (14) in the fabric running direction, wherein the installation heights of the conveying rollers (15) located at the left and right ends of the arc-shaped part (14) are gradually increased in the direction towards the middle portion of the arc-shaped part (14).

5. A bubble jet fabric active printing apparatus according to claim 4, wherein Flexible convex arrays matched with the concave-convex textures of the bubble yarn fabric are uniformly distributed on the surfaces of the conveying rollers (15).

6. A bubble jet fabric active printing apparatus according to claim 4, wherein The arc-shaped part (14) comprises a first arc-shaped plate (142), a second arc-shaped plate (143) and a third arc-shaped plate (144) rotatably connected to the left and right ends of the first arc-shaped plate (142) respectively, and the adjusting assembly (3) comprises: Two groups of first electric push rods (31) are rotatably connected to the left and right sides of the fixed seat (21) at the cylinder body ends and are arranged below the second arc-shaped plate (143) and the third arc-shaped plate (144) at the push rod ends respectively; An adjusting steam amount assembly is arranged on the top of the heating box (12).

7. A bubble jet fabric active printing apparatus according to claim 6, wherein The steam quantity adjusting assembly comprises: a sealing plate (32) fixed to the outer side of the first arc-shaped plate (142) and fixedly connected to the outer side of the first arc-shaped end (22); an adjusting seat (33) arranged below the heating box (12); two groups of adjusting plates (34) vertically arranged at the front and rear ends of the adjusting seat (33), and the top ends of the adjusting plates (34) are slidably connected to the side wall of the fixed seat (21) through a sliding rail mechanism; an adjusting motor (35) arranged at the top of the adjusting seat (33); a bearing plate (36) fixed between the two groups of adjusting plates (34); a lead screw (37) having one end fixedly connected to the output end of the adjusting motor (35) and the other end threadedly connected to a threaded block arranged at the bottom of the fixed seat (21) through a bearing hole in the bearing plate (36); a reset spring rod (38) having a cylinder end fixed to the top of the heating box (12) and a rod end downwardly extending and arranged with a rod ball at the bottom surface of the branch plate (210); a steam flow valve (39) arranged on the output pipeline of the high-temperature steam machine (13); a valve port (391) arranged in the valve body of the steam flow valve (39); a valve seat (392) slidably arranged in the valve cavity of the steam flow valve (39), and the sliding stroke of the valve seat (392) at least partially covers the valve port (391); the rod end of the reset spring rod (38) is slid upwardly through the wall of the heating box (12) and fixedly connected to the valve seat (392).

8. A bubble jet fabric active printing apparatus according to claim 7, wherein A connecting plate (311) is rotatably connected between the end of the second arc-shaped end (23) and the free end of the second arc-shaped plate (143) and between the end of the third arc-shaped end (24) and the free end of the third arc-shaped plate (144), and the second arc-shaped end (23) and the third arc-shaped end (24) are rotatably connected to the left and right sides of the first arc-shaped end (22) with the ends close to the first arc-shaped end (22) as the rotation fulcrums.

9. A process for active printing of a crepe de Chine fabric, characterized in that: The active printing device for bubble crepe fabric comprises the following steps: S1, the bubble crepe fabric is sent into the printing box (1), and after being driven by the conveyor (10) and being subjected to active printing by the printing machine (11), the wet fabric is intermittently conveyed to the same side heating box (12) to enter the steaming link; S2, when the fabric enters the heating box (12), the thickness detector detects the thickness and transmits the thickness to the control system, the control system calculates the posture of the arc-shaped member (14) and the adaptive parameters of the steam flow; S3, the control system drives the first electric push rod (31) to shorten, so that the arc-shaped member (14) forms a V-shaped angle to open the gap of the fabric, and the adjusting motor (35) drives the lead screw (37) to rotate forward, so that the steam assembly is lifted and the steam valve port (391) is expanded to increase the steam supply; S4, the control system drives the first electric push rod (31) to lengthen, so that the arc-shaped member (14) has a gentle curvature, the adjusting motor (35) is reversed to lower the height of the steam assembly, the reset spring rod (38) drives the valve port (391) to be reduced, and the steam flow is reduced. S5, the fabric is covered on the surface of the arc-shaped part (14), and is transported by the conveyor (10) in cooperation with the transport roller (15) with gradually rising height, the fabric is applied with transverse pre-tension, is flattened and wrinkle-eliminated, and then enters the core heating area; S6, the flexible protrusions on the surface of the transport roller (15) are embedded into the recesses of the fabric, the driving motor drives the transport roller (15) to rotate synchronously, and the fibers in the recesses are combed; S7, the steam generated by the high-temperature steam machine (13) is distributed to the first arc-shaped end (22), the second arc-shaped end (23) and the third arc-shaped end (24) through the pipeline and the branch plate (210) to form three-way directional injection, and the steam penetration type steaming is realized in cooperation with the negative pressure suction of the air extractor (141).

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