Knit fabric setting machine steam jet adjusting device

Abstract

This utility model discloses a steam nozzle adjustment device for a knitted fabric setting machine. It includes a main conveying pipe for transporting steam, rotatably mounted on the inner wall of the setting machine via a bearing seat, and a frame symmetrically mounted on the main conveying pipe. A rectangular frame is provided on the lower side of the main conveying pipe, and the rectangular frame is divided into at least five movable chambers by partitions. This utility model divides the rectangular frame into at least five independent movable chambers, and slides distributors with equidistant steam nozzles within each chamber. Simultaneously, it utilizes a scissor-type equidistant adjustment mechanism composed of a cross link, two connecting rods, a connecting rod, and a rotating shaft. This allows for synchronous equidistant fine-tuning of multiple sets of steam nozzles in all movable chambers with a single cylinder drive, effectively adapting to the steam coverage requirements of fabrics with different widths, avoiding inconsistencies in spacing caused by independent chamber adjustments, and significantly improving adjustment efficiency and setting uniformity.

Description

Technical Field

[0001] This utility model relates to the field of knitted fabric setting technology, and more specifically, to a steam nozzle adjustment device for a knitted fabric setting machine. Background Technology

[0002] Knitted fabrics, due to their softness, elasticity, and breathability, are widely used in clothing, home textiles, and other fields. The setting process is a crucial step in knitted fabric production; its core purpose is to use steam heating to cause physical deformation of the fabric fibers and stabilize their shape, thereby improving the fabric's feel, eliminating wrinkles, and ensuring dimensional stability. The steam nozzle, as the core component of the setting machine, directly affects the uniformity of steam contact through its spray angle, distribution spacing, and distance from the fabric, thus determining the setting quality.

[0003] Currently, most knitted fabric setting machines on the market use fixed installations or simple overall adjustment structures for their steam nozzles. This means that the nozzle's overall lifting or single-angle deflection is achieved manually or through a simple drive mechanism. While this type of structure can meet basic setting requirements, the adjustment method is rather crude and lacks targeted adaptability, making it difficult to make precise adjustments based on fabric width, thickness, and fiber characteristics.

[0004] In actual production, existing technologies have certain problems: On the one hand, the nozzle angle adjustment is not flexible enough, and it cannot adapt to the steam coverage range of different areas according to the fabric width, resulting in uneven steam contact between the fabric edge and the center area, leading to insufficient edge setting or excessive heat and moisture in the center; on the other hand, the nozzle spacing is mostly fixed and cannot be finely adjusted as needed. When processing knitted fabrics of different widths, the nozzle assembly needs to be disassembled and reassembled, which is cumbersome and time-consuming, affecting production efficiency; at the same time, the coordination between the overall lifting adjustment and the local nozzle position is poor, which easily leads to inconsistent distances between the nozzle and the fabric, further aggravating the differences in setting effect and failing to meet the production requirements of high-quality knitted fabrics. Therefore, we urgently need a steam nozzle adjustment device for knitted fabric setting machines to solve the above problems. Utility Model Content

[0005] One objective of this invention is to provide a new technical solution for a steam nozzle adjustment device for a knitted fabric setting machine. By dividing the rectangular frame into at least five independent movable chambers and slidingly arranging distributors with equidistant steam nozzles within each chamber, and simultaneously cooperating with a scissor-type equidistant adjustment mechanism composed of a cross link, two connecting rods, a connecting rod, and a rotating shaft, synchronous equidistant fine-tuning of multiple sets of steam nozzles in all movable chambers can be achieved with a single cylinder drive. This effectively adapts to the steam coverage requirements of fabrics with different widths, avoids inconsistencies in spacing caused by independent adjustment of each chamber, and significantly improves adjustment efficiency and setting uniformity.

[0006] According to a first aspect of the present invention, a steam nozzle adjustment device for a knitted fabric setting machine is provided, comprising a main conveying pipe for conveying steam, which is rotatably mounted on the inner wall of the setting machine via a bearing seat, and further comprising: a frame symmetrically mounted on the main conveying pipe, a rectangular frame being provided on the lower side of the main conveying pipe, the rectangular frame being divided into at least five movable chambers by partitions, a distributor for evenly distributing gas being slidably connected to the inner wall of the movable chamber, the discharge end of the distributor being connected to a steam nozzle, and the movable chamber being connected to the distributor by an adjusting member;

[0007] Each of the movable chambers has at least four sets of distributors. A U-shaped rod is provided in the movable chamber and corresponding to the position of the distributor. The two ends of the U-shaped rod are connected to the upper part of the distributor. Each set of distributors has at least three steam nozzles. The three steam nozzles are arranged equidistantly on the distributor. The air inlet end of the distributor is fixedly connected to a transmission pipe for steam transmission. The other end of the transmission pipe is connected to the air outlet end of the main delivery pipe to form a gas supply channel.

[0008] The adjusting component includes a rectangular rod fixedly installed on the bottom wall of the movable cavity. The rectangular rod has symmetrically opened sliding grooves, and a rotating shaft is slidably connected in the sliding grooves. Cross connecting rods are symmetrically arranged in the movable cavity. The adjacent ends of two sets of cross connecting rods are stacked and rotatably connected to the rotating shaft. Two connecting rods are symmetrically arranged in the movable cavity. The ends of the two sets of two connecting rods are respectively hinged to the ends of the cross connecting rods. At least four sets of connecting rods are arranged in the movable cavity. The four sets of connecting rods are respectively fixedly installed at the hinge points of the cross connecting rods and the two connecting rods.

[0009] The frame is equipped with a lifting component connected to the rectangular frame. The shaping machine is connected to the main conveying pipe through a driving component. When the driving component is working, the main conveying pipe rotates along its rotation axis to form an angle adjustment zone.

[0010] Optionally, the cross section of the U-shaped rod is connected to the corresponding connecting rod, and sliders are symmetrically installed on the upper part of the U-shaped rod. The sliders on adjacent sets of U-shaped rods are staggered. Four sets of sliding rods are equidistantly arranged in the movable cavity. The ends of the four sets of sliding rods are all connected to the inner wall of the movable cavity. The sliders are slidably connected to the corresponding sliding rods to form a sliding area. A sliding plate is slidably connected to the bottom of the rectangular frame. A sliding channel is opened on the bottom wall of the five sets of movable cavities. A push rod is slidably connected in the sliding channel, and the end of the push rod is connected to the sliding plate.

[0011] Optionally, a cylinder is fixedly connected to one side of the rectangular frame via a connecting bracket. The cylinder is connected to an external air supply device. The inner walls of the five sets of movable chambers are slidably connected with hooks adapted to the connecting rods. The hooks engage with the corresponding connecting rods to form a connection area. The upper side of the push rod is connected to the corresponding hook. The output end of the cylinder is connected to the end of the corresponding hook. When the cylinder drives the corresponding hook to move, the sliding plate and the corresponding push rod move with it to form a linkage drive area. When in the linkage drive area, the cross link, the two links, the U-shaped rod and the slider move along the corresponding path of the slide rod to form an equidistant adjustment area.

[0012] Optionally, the lifting component includes three sets of guide rods and screws. The three sets of guide rods are fixedly connected to the triangle on the upper part of the rectangular frame. The end of the screw is rotatably connected to the upper part of the rectangular frame. A rectangular support area is formed between the three sets of guide rods and screws. Guide blocks are symmetrically installed on two sets of the frame. The ends of the three sets of guide rods are slidably connected to the corresponding guide blocks. The screw is threadedly connected to the corresponding guide blocks. A connecting piece is fixedly connected to the main conveying pipe. The connecting piece has a toothed groove. A first drive motor is fixedly connected to the connecting piece through a bracket. The output end of the first drive motor is connected to the screw. When the first drive motor drives the screw to rotate, the rectangular frame and guide rods move along the path of the guide blocks to form the lifting area.

[0013] Optionally, the driving component includes a second drive motor fixedly connected to the inner wall of the stenter. The output end of the second drive motor is fixedly connected to a transmission rod, and the end of the transmission rod is fixedly connected to a gear adapted to the tooth groove. The gear meshes with the tooth groove. When the second drive motor drives the gear on the transmission rod to rotate, the main conveying pipe and the connecting piece rotate along with it through the tooth groove to form an angle adjustment zone.

[0014] Optionally, the transmission pipe is made of flexible and deformable tubing, and is in a displacement compensation state when the rectangular frame and the main transmission pipe deflect.

[0015] Beneficial effects

[0016] 1. This utility model divides a rectangular frame into at least five independent movable chambers, and slides four or more distributors with equidistant steam nozzles in each movable chamber. Simultaneously, it employs a scissor-type equidistant adjustment mechanism composed of a cross link, two connecting rods, a connecting rod, and a rotating shaft within a sliding groove. This allows a single cylinder on one side of the rectangular frame to output linear driving force, which, through a hook and push rod linkage, drives the sliding plate to synchronously move all the connecting rods in the five movable chambers proportionally. This drives the U-shaped rod and slider to slide smoothly along the sliding rod, ultimately achieving synchronous equidistant fine-tuning of multiple steam nozzles in all movable chambers. This effectively adapts to the steam coverage requirements of fabrics with different widths, avoiding inconsistencies in spacing and adjustment errors caused by independent adjustment of each chamber, and significantly improving adjustment efficiency and shaping uniformity.

[0017] 2. This utility model uses a high-temperature resistant, flexible, deformable transmission pipe to connect the main delivery pipe and the distributor in the movable cavity. It also features an angle adjustment area driven by a second drive motor through a transmission rod and gear meshing with the connecting plate teeth, and a lifting area driven by a first drive motor driving a screw and cooperating with three sets of triangularly distributed guide rods. This allows the flexible transmission pipe to automatically bend and deform to compensate for displacement caused by changes in angle and height when the steam nozzle deflects with the main delivery pipe or is vertically adjusted along the guide block. This prevents stress concentration and steam leakage in the pipeline, while achieving stepless precise control of the spray angle and height. This meets the shaping process requirements of fabrics with different thicknesses and fiber properties, ensures uniform steam penetration, and improves shaping quality.

[0018] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0020] Figure 1 A first-view schematic diagram of the overall structure of a steam nozzle adjustment device for a knitted fabric setting machine;

[0021] Figure 2 A second-view schematic diagram of the overall structure of a steam nozzle adjustment device for a knitted fabric setting machine;

[0022] Figure 3 A steam nozzle adjustment device for a knitted fabric setting machine Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 4 A partial cross-sectional schematic diagram of a steam nozzle adjustment device for a knitted fabric setting machine;

[0024] Figure 5 A steam nozzle adjustment device for a knitted fabric setting machine Figure 4 Enlarged structural diagram at point B;

[0025] Figure 6 A partial cross-sectional schematic diagram of a steam nozzle adjustment device for a knitted fabric setting machine;

[0026] Figure 7 This is a partial structural schematic diagram of a steam nozzle adjustment device for a knitted fabric setting machine;

[0027] Figure 8A steam nozzle adjustment device for a knitted fabric setting machine Figure 7 Enlarged structural diagram at point C;

[0028] Figure 9 A steam nozzle adjustment device for a knitted fabric setting machine Figure 2 Enlarged structural diagram at point D.

[0029] The diagram shows the following components: 1. Stenter; 2. Main conveying pipe; 3. Frame; 4. Rectangular frame; 5. Partition; 6. Distributor; 7. Steam nozzle; 8. U-shaped rod; 9. Transmission pipe; 10. Rectangular rod; 11. Sliding groove; 12. Rotating shaft; 13. Cross linkage; 14. Two connecting rods; 15. Connecting rod; 16. Slider; 17. Sliding rod; 18. Sliding plate; 19. Sliding track; 20. Push rod; 21. Cylinder; 22. Hook; 23. Guide rod; 24. Screw; 25. Guide block; 26. Connecting piece; 27. Gear; 28. First drive motor; 29. ​​Second drive motor; 30. Transmission rod; 31. Gear. Detailed Implementation

[0030] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0031] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0032] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0033] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0034] like Figure 1-9 As shown, a steam nozzle adjustment device for a knitted fabric setting machine includes a main conveying pipe 2 for conveying steam, which is rotatably mounted on the inner wall of the setting machine 1 via a bearing seat.

[0035] It also includes a frame 3 symmetrically installed on the main delivery pipe 2. A rectangular frame 4 is provided on the lower side of the main delivery pipe 2. The rectangular frame 4 is divided into at least five movable chambers by partitions 5. A distributor 6 for evenly distributing gas is slidably connected to the inner wall of the movable chamber. The discharge end of the distributor 6 is connected to a steam nozzle 7.

[0036] Here, the rectangular frame 4 is divided into at least five independent movable chambers by the partition 5, so that each distributor 6 can slide and adjust in a predetermined direction in its respective chamber, thereby changing the lateral spacing of the steam nozzle 7 group to adapt to the steam coverage requirements of fabrics of different widths. At the same time, the independent separation of the movable chambers effectively avoids mutual interference of steam, ensuring the stability and uniformity of the spray. The sliding connection of the distributor 6 makes it easy to flexibly adjust the nozzle position according to the fabric specifications, improving the versatility and ease of adjustment of the device.

[0037] Furthermore, the distributor 6 is installed in the movable cavity using a sliding connection and can move smoothly within the cavity. When equal-distance adjustment is required, the distributor 6 is driven by the linkage mechanism to slide synchronously as a whole, so that the steam nozzles 7 always maintain a uniform spacing. As a gas distribution component, the distributor 6 has a pressure equalization chamber inside, which ensures that the incoming steam is evenly distributed and then sprayed out from each nozzle. The steam flow rate and pressure are consistent, so that even after adjusting the spacing, the heat supply to all parts of the fabric can still be uniform, avoiding the problems of color difference and uneven shaping.

[0038] Furthermore, the steam nozzle 7 is directly connected to the discharge end of the distributor 6 and moves synchronously with the distributor 6. The number and arrangement of the steam nozzles 7 enable a dense and uniform spray array to be formed even after the distributor 6 moves. The structural design of the nozzles allows the steam to be sprayed onto the fabric at an appropriate diffusion angle. With subsequent angle and height adjustments, the steam spray parameters in the processing space are precisely matched, effectively improving the shaping quality.

[0039] Each movable chamber has at least four sets of distributors 6. A U-shaped rod 8 is provided in the movable chamber and corresponding to the position of the distributor 6. The two ends of the U-shaped rod 8 are connected to the upper part of the distributor 6. Each set of distributors 6 has at least three steam nozzles 7. The three steam nozzles 7 are arranged equidistantly on the distributor 6. The air inlet end of the distributor 6 is fixedly connected to a transmission pipe 9 for steam transmission. The other end of the transmission pipe 9 is connected to the air outlet end of the main conveying pipe 2 to form a gas supply channel. The transmission pipe 9 is made of flexible and deformable tubing. When the rectangular frame 4 and the main conveying pipe 2 deflect, it is in a displacement compensation state.

[0040] Here, each active chamber is equipped with at least four sets of distributors 6, so that multiple steam jet sources are formed in a single active chamber, which can densely cover the width direction of the fabric. At the same time, the three steam nozzles 7 on each set of distributors 6 are equidistantly arranged to further refine the steam jet matrix, ensuring that the steam heat field is continuously distributed on the fabric surface without any breaks, thereby ensuring that the fabric is heated evenly during the setting process.

[0041] Furthermore, the two ends of the U-shaped rod 8 are fixedly connected to the upper part of the distributor 6 to form a stable suspension support structure, which makes the distributor 6 maintain a horizontal posture during the sliding adjustment process without twisting or tilting, effectively protecting the connection interface of the transmission pipe 9. The U-shaped rod 8 has a simple structure and symmetrical force, which can transmit the driving force evenly when driving the distributor 6 to move at equal distances, avoiding jamming.

[0042] Furthermore, the transmission pipe 9 is made of flexible and deformable tubing, such as high-temperature resistant corrugated pipe or braided hose. When the main transmission pipe 2 deflects within the angle adjustment zone, the flexible transmission pipe 9 can bend and deform accordingly, automatically compensating for the difference in pipe path length and direction caused by the angle change, always maintaining the connectivity and sealing of the gas supply channel, preventing fatigue fracture or steam leakage caused by repeated bending of rigid connections, significantly improving the reliability and service life of the adjustment device. At the same time, the flexible pipe also allows for vertical displacement compensation when the rectangular frame 4 is raised and lowered, maintaining a stable gas supply.

[0043] The movable cavity is connected to the distributor 6 via an adjusting component. The adjusting component includes a rectangular rod 10 fixedly installed on the bottom wall of the movable cavity. The rectangular rod 10 has symmetrically opened sliding grooves 11. A rotating shaft 12 is slidably connected in the sliding grooves 11. Cross connecting rods 13 are symmetrically arranged in the movable cavity. The adjacent ends of two sets of cross connecting rods 13 are stacked and rotatably connected to the rotating shaft 12. Two connecting rods 14 are symmetrically arranged in the movable cavity. The ends of the two sets of two connecting rods 14 are respectively hinged to the ends of the cross connecting rods 13. At least four sets of connecting rods 15 are provided in the movable cavity. The four sets of connecting rods 15 are respectively fixedly installed at the hinge points of the cross connecting rods 13 and the two connecting rods 14.

[0044] Here, the symmetrical sliding grooves 11 on the rectangular rod 10 slide in conjunction with the rotating shaft 12, so that the rotating shaft 12 can both rotate around its own axis and move linearly along the sliding groove 11. Thus, in the planar linkage mechanism composed of the cross link 13 and the two links 14, it acts as a composite node of the prismatic joint and the revolute joint, realizing the telescopic and variable pitch function of the scissor mechanism.

[0045] Furthermore, the adjacent ends of the two sets of cross links 13 are stacked and hinged together on the rotating shaft 12 to form a double-layered hinge structure. This stacked connection method ensures the synchronicity of the link movement within the limited space of the movable cavity. The linear movement of the rotating shaft 12 in the sliding groove 11 guides all the connecting rods 15 to change the spacing proportionally, thereby enabling the U-shaped rod 8 and the distributor 6 linked with the connecting rods 15 to obtain precise equidistant displacement output. During the adjustment process, the relative positions of each distributor 6 always remain symmetrical and uniform.

[0046] Furthermore, the ends of the cross link 13 and the two links 14 are hinged to each other, and a connecting rod 15 is fixed at the hinge, forming multiple parallelogram deformation units. When any connecting rod 15 is driven by a driving force, the entire linkage mechanism undergoes linkage deformation, and all connecting rods 15 in the movable cavity are synchronously displaced. Due to the characteristics of the mechanism, the displacement of each connecting rod 15 is equal, thereby driving the corresponding distributor 6 to achieve equidistant adjustment. Compared with the independent adjustment method, this centralized linkage mechanism only requires a single driving source to complete the synchronous equidistant displacement of multiple sets of nozzles. It has a compact structure, extremely high synchronization, significantly simplifies the control system and reduces manufacturing costs.

[0047] The cross section of the U-shaped rod 8 is connected to the corresponding connecting rod 15. Slider 16 is symmetrically installed on the upper part of the U-shaped rod 8. The sliders 16 on two adjacent sets of U-shaped rods 8 are staggered. Four sets of sliding rods 17 are equidistantly arranged in the movable cavity. The ends of the four sets of sliding rods 17 are connected to the inner wall of the movable cavity. The slider 16 is slidably connected to the corresponding sliding rod 17 to form a sliding area. The bottom of the rectangular frame 4 is slidably connected to a sliding plate 18. The bottom wall of the five sets of movable cavities is provided with a sliding channel 19. A push rod 20 is slidably connected in the sliding channel 19, and the end of the push rod 20 is connected to the sliding plate 18.

[0048] Here, the cross section of the U-shaped rod 8 is fixedly connected to the connecting rod 15, so that the displacement generated by the linkage mechanism is directly transmitted to the distributor 6. The slider 16 symmetrically arranged above the U-shaped rod 8 slides on the slide rod 17, forming a linear movement constraint, ensuring that the distributor 6 only translates along the axis of the slide rod 17 without deflection, thereby ensuring that the spray direction of the steam nozzle 7 is always perpendicular to the fabric surface.

[0049] Furthermore, the sliders 16 on the two adjacent sets of U-shaped rods 8 are arranged in a staggered manner, so that even if the spacing is reduced during the equal-distance adjustment of the distributor 6, the adjacent sliders 16 will not interfere with each other. This makes full use of the longitudinal space in the active cavity, enabling multiple sets of distributors 6 to achieve a large spacing adjustment range in a compact space, thus enhancing the compactness and rationality of the structural layout.

[0050] Furthermore, the sliding plate 18 is slidably connected to the bottom of the rectangular frame 4 and simultaneously connected to the hooks 22 in the five movable chambers via the push rod 20. When the cylinder 21 is driven, the sliding plate 18 drives all the push rods 20 to slide synchronously, so that the adjusting parts in each movable chamber move in unison, realizing the synchronous and equidistant adjustment of all 7 groups of steam nozzles under the entire rectangular frame 4. This synchronous linkage structure ensures the consistency of the spacing change of the multi-chamber nozzles, avoids the differences that may occur in the chamber adjustment, and significantly improves the adjustment efficiency and shaping uniformity.

[0051] A cylinder 21 is fixedly connected to one side of the rectangular frame 4 via a connecting bracket. The cylinder 21 is connected to an external air supply device. The inner walls of the five sets of movable chambers are slidably connected with hooks 22 that are adapted to the connecting rods 15. The hooks 22 engage with the corresponding connecting rods 15 to form a connection area. The upper side of the push rod 20 is connected to the corresponding hook 22. The output end of the cylinder 21 is connected to the end of the corresponding hook 22. When the cylinder 21 drives the corresponding hook 22 to move, the sliding plate 18 and the corresponding push rod 20 follow it to form a linkage drive area. When in the linkage drive area, the cross link 13, the two links 14, the U-shaped rod 8 and the slider 16 move along the corresponding path of the slide rod 17 to form an equidistant adjustment area.

[0052] Here, the cylinder 21 is fixed to one side of the rectangular frame 4 by the connecting bracket to provide stable driving force. The hook 22 is slidably connected to the movable cavity wall and engages with the connecting rod 15 to form a separable power interface. When it is necessary to maintain or replace the distributor 6, the hook 22 can be easily released from the engagement with the connecting rod 15 to achieve modular disassembly without affecting the integrity of the linkage mechanism.

[0053] Furthermore, the output end of cylinder 21 is directly connected to hook 22. At the same time, hook 22 transmits power to hook 22 in all movable chambers through push rod 20 and sliding plate 18, forming a linkage drive area. This ensures that the cross rod 13 and two connecting rods 14 in the five movable chambers move synchronously, thereby driving all U-shaped rods 8 and distributors 6 to slide equidistantly along slide rod 17. During the adjustment process, the actions of each chamber are completely synchronized, and the overall spacing of steam nozzles 7 changes uniformly.

[0054] Furthermore, under the action of the linkage drive zone, the cross link 13, the two links 14, the U-shaped rod 8 and the slider 16 move along their respective slide rod 17 paths, thereby defining the equidistant adjustment zone. The displacement of each distributor 6 in this zone is determined by the geometric relationship of the linkage mechanism, always maintaining a proportional relationship, avoiding human adjustment errors, making the switching of process parameters for multi-width fabrics quick and accurate, greatly shortening the adjustment time, and improving production efficiency and product consistency.

[0055] A lifting component is provided on frame 3 and connected to rectangular frame 4. The lifting component includes three sets of guide rods 23 and screws 24. The three sets of guide rods 23 are fixedly connected to the triangle on the upper part of rectangular frame 4. The end of screw 24 is rotatably connected to the upper part of rectangular frame 4. A rectangular support area is formed between the three sets of guide rods 23 and screws 24. Guide blocks 25 are symmetrically installed on the two frames 3. The ends of the three sets of guide rods 23 are slidably connected to the corresponding guide blocks 25. Screws 24 are threadedly connected to the corresponding guide blocks 25. A connecting piece 26 is fixedly connected to the main conveying pipe 2. The connecting piece 26 has a toothed groove 27. A first drive motor 28 is fixedly connected to the connecting piece 26 through a bracket. The output end of the first drive motor 28 is connected to the screw 24. When the first drive motor 28 drives the screw 24 to rotate, the rectangular frame 4 and the guide rods 23 move along the path of the guide block 25 to form the lifting area.

[0056] Here, three sets of guide rods 23 are arranged in a triangle on the upper part of the rectangular frame 4, forming a rectangular support area together with the screw 24. The triangular layout provides stable three-point support, effectively resisting the off-center load moment and preventing the rectangular frame 4 from tilting or swaying during the lifting process. The guide rods 23 slide with the guide blocks 25 on the frame 3 to provide precise vertical guidance and restrict the rectangular frame 4 to move only vertically.

[0057] Furthermore, the first drive motor 28 is fixed on the connecting piece 26 by the bracket and drives the screw 24 to rotate. The screw 24 and the guide block 25 are threaded together to convert the rotational motion into the linear lifting motion of the rectangular frame 4. The threaded pair has a self-locking characteristic, which can maintain the height position of the rectangular frame 4 after the motor stops, and prevent it from sliding down due to gravity or vibration, thereby stably maintaining the set distance between the steam nozzle 7 and the fabric.

[0058] Furthermore, by adjusting the height of the lifting zone, the distance between the steam nozzle 7 and the fabric surface can be precisely controlled according to the thickness of different knitted fabrics and the requirements of the setting process. If the distance is too close, it may cause the fabric to overheat and be damaged. If the distance is too far, the steam heat will be lost and affect the setting effect. This lifting adjustment adapts to the differentiated needs of thin and thick fabrics, ensuring that steam penetration and heat transfer reach the best state, thereby improving the setting quality and energy efficiency.

[0059] The stenter 1 is connected to the main conveying pipe 2 via a drive component. When the drive component is working, the main conveying pipe 2 rotates along its rotation axis to form an angle adjustment zone. The drive component includes a second drive motor 29 fixedly connected to the inner wall of the stenter 1. A transmission rod 30 is fixedly connected to the output end of the second drive motor 29. A gear 31 that matches the tooth groove 27 is fixedly connected to the end of the transmission rod 30, and the gear 31 meshes with the tooth groove 27. When the second drive motor 29 drives the gear 31 on the transmission rod 30 to rotate, the main conveying pipe 2 and the connecting piece 26 rotate along with it through the tooth groove 27 to form an angle adjustment zone.

[0060] Here, the second drive motor 29 is fixed to the inner wall of the stenter 1, and transmits torque to the gear 31 through the transmission rod 30. The gear 31 precisely meshes with the tooth groove 27 of the connecting piece 26 on the main conveying pipe 2, converting the rotational motion of the motor into the controllable rotation of the main conveying pipe 2 around its bearing seat axis, thereby steplessly adjusting the spray angle of the steam nozzle 7 to adapt to the steam coverage requirements of fabrics of different widths.

[0061] Furthermore, the toothed grooves 27 on the connecting piece 26 are arc-shaped and mesh with the gear 31 to form a large transmission ratio for speed reduction and torque increase, making the angle adjustment more stable and precise, avoiding vibration during the adjustment process. When the main conveying pipe 2 rotates, the frame 3 and the rectangular frame 4 follow and deflect synchronously. The relative spray angle between the steam nozzle 7 and the fabric is continuously variable, and the steam can be sprayed vertically or at a certain angle, optimizing the distribution and penetration effect of the steam on the fabric surface.

[0062] Furthermore, the angle adjustment zone works in conjunction with the displacement compensation of the flexible transmission pipe 9. When the main transmission pipe 2 deflects, the flexible transmission pipe 9 automatically bends to absorb the displacement, preventing stress concentration in the pipeline and ensuring uninterrupted steam transmission. This angle adjustment method expands the device's compatibility with narrow and wide fabrics, reduces changeover adjustment time, and enables the stenter to quickly switch to producing fabrics of different specifications, significantly improving equipment utilization and production flexibility.

[0063] In this invention, the working principle of the steam nozzle adjustment device for the knitted fabric setting machine is as follows: High-temperature steam output from an external steam source is distributed through the main conveying pipe 2 on the setting machine 1. The steam is then flexibly conveyed through the flexible material transmission pipe 9 and precisely introduced into the distributors 6 corresponding to each movable cavity within the rectangular frame 4. The distributors 6 perform pressure equalization and distribution of the steam through the internal flow channel structure. After ensuring the steam pressure is stable, the steam nozzles 7, which are arranged at equal intervals, spray the steam evenly onto the knitted fabric to be set, providing a stable heat source for the fabric setting. When it is necessary to adapt the steam coverage angle to different widths of fabric, the second drive motor 29 fixed on the inner wall of the setting machine 1 is started. Its output end drives the gear 31 at the end to rotate synchronously through the transmission rod 30. The gear 31 meshes with the tooth groove 27 on the connecting piece 26 on the outer side of the main conveying pipe 2. With the precision of the gear transmission, the main conveying pipe 2 is driven to deflect at a controllable angle along the rotation axis of the bearing seat, thereby driving the frame 3 and the rectangular frame 4 to deflect synchronously as a whole, realizing stepless adjustment of the spray angle of the steam nozzles 7.

[0064] When the vertical distance between the nozzle and the fabric needs to be adjusted according to the fabric thickness, the first drive motor 28 fixed on the connecting piece 26 by the bracket outputs torque to drive the screw 24 to rotate around its own axis. The screw 24 and the guide block 25 on the frame 3 form a threaded transmission engagement. At the same time, three sets of triangularly arranged guide rods 23 perform vertical guidance and limit along the inner hole of the guide block 25 to ensure that the rectangular frame 4 rises and falls smoothly vertically under the drive of the screw 24, and accurately controls the distance between the steam nozzle 7 and the fabric.

[0065] When the nozzle distribution spacing needs to be finely adjusted according to the fabric width, the cylinder 21 on one side of the rectangular frame 4 outputs linear driving force under the drive of the external air supply equipment, pushing the hook 22, which is slidably connected to the inner wall of the movable cavity, to move horizontally. The hook 22 engages with the connecting rod 15 and moves synchronously. At the same time, the sliding plate 18 at the bottom of the rectangular frame 4 moves synchronously along the sliding track 19 through the push rod 20. This drives the cross connecting rod 13 and the two connecting rods 14 in the movable cavity to form a linkage mechanism around the rotating shaft 12 in the sliding groove 11. The connecting rod 15 acts as the linkage fulcrum to pull the U-shaped rod 8. The slider 16 on the upper part of the U-shaped rod 8 moves smoothly along the sliding rod 17 in the movable cavity. Finally, it drives the distributor 6 and the steam nozzle 7 to achieve equidistant synchronous fine adjustment. Through the three-dimensional coordinated adjustment of angle, spacing and height, it ensures that knitted fabrics of different specifications and fiber characteristics can obtain uniform and stable steam setting treatment, ensuring the consistency of setting quality.

[0066] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A steam nozzle regulating device for a knitted fabric setting machine, comprising a main conveying pipe (2) for conveying steam, which is rotatably mounted on the inner wall of the setting machine (1) via a bearing seat, characterized in that: It also includes: a frame (3) symmetrically installed on the main delivery pipe (2), a rectangular frame (4) provided on the lower side of the main delivery pipe (2), at least five movable chambers formed by partitions (5) in the rectangular frame (4), a distributor (6) for evenly distributing gas is slidably connected to the inner wall of the movable chamber, a steam nozzle (7) is connected to the discharge end of the distributor (6), and the movable chamber is connected to the distributor (6) by an adjusting member; Each of the movable chambers has at least four sets of distributors (6). A U-shaped rod (8) is provided in the movable chamber and corresponding to the position of the distributor (6). The two ends of the U-shaped rod (8) are connected to the upper part of the distributor (6). Each set of the distributor (6) has at least three steam nozzles (7). The three steam nozzles (7) are arranged equidistantly on the distributor (6). The air inlet end of the distributor (6) is fixedly connected to a transmission pipe (9) for steam transmission. The other end of the transmission pipe (9) is connected to the air outlet end of the main conveying pipe (2) to form a gas supply channel. The adjusting component includes a rectangular rod (10) fixedly installed on the bottom wall of the movable cavity. The rectangular rod (10) is symmetrically provided with sliding grooves (11). A rotating shaft (12) is slidably connected in the sliding grooves (11). Cross connecting rods (13) are symmetrically arranged in the movable cavity. The adjacent ends of the two sets of cross connecting rods (13) are stacked and rotatably connected to the rotating shaft (12). Two connecting rods (14) are symmetrically arranged in the movable cavity. The ends of the two sets of two connecting rods (14) are respectively hinged to the ends of the cross connecting rods (13). At least four sets of connecting rods (15) are provided in the movable cavity. The four sets of connecting rods (15) are respectively fixedly installed at the hinges of the cross connecting rods (13) and the two connecting rods (14). The frame (3) is provided with a lifting component connected to the rectangular frame (4). The shaping machine (1) is connected to the main conveying pipe (2) through a driving component. When the driving component is working, the main conveying pipe (2) rotates along its rotation axis to form an angle adjustment zone.

2. The steam nozzle adjustment device for a knitted fabric setting machine according to claim 1, characterized in that: The cross section of the U-shaped rod (8) is connected to the corresponding connecting rod (15). Slider (16) is symmetrically installed on the upper part of the U-shaped rod (8). The sliders (16) on two adjacent sets of U-shaped rods (8) are staggered. Four sets of sliding rods (17) are arranged equidistantly in the active cavity. The ends of the four sets of sliding rods (17) are connected to the inner wall of the active cavity. The slider (16) is slidably connected to the corresponding sliding rod (17) to form a sliding area. The bottom of the rectangular frame (4) is slidably connected to a sliding plate (18). The bottom wall of the five sets of active cavities is provided with a sliding channel (19). A push rod (20) is slidably connected in the sliding channel (19), and the end of the push rod (20) is connected to the sliding plate (18).

3. The steam nozzle adjustment device for a knitted fabric setting machine according to claim 2, characterized in that: A cylinder (21) is fixedly connected to one side of the rectangular frame (4) via a connecting bracket. The cylinder (21) is connected to an external air supply device. The inner walls of the five sets of movable chambers are slidably connected with hooks (22) that are adapted to the connecting rods (15). The hooks (22) engage with the corresponding connecting rods (15) to form a connection area. The upper side of the push rod (20) is connected to the corresponding hook (22). The output end of the cylinder (21) is connected to the end of the corresponding hook (22). When the cylinder (21) drives the corresponding hook (22) to move, the sliding plate (18) and the corresponding push rod (20) follow it to form a linkage drive area. When in the linkage drive area, the cross link (13), the two links (14), the U-shaped rod (8) and the slider (16) move along the corresponding path of the slide rod (17) to form an equidistant adjustment area.

4. The steam nozzle adjustment device for a knitted fabric setting machine according to claim 3, characterized in that: The lifting component includes three sets of guide rods (23) and screws (24). The three sets of guide rods (23) are fixedly connected to the triangular part of the upper part of the rectangular frame (4). The end of the screw (24) is rotatably connected to the upper part of the rectangular frame (4). A rectangular support area is formed between the three sets of guide rods (23) and screws (24). Guide blocks (25) are symmetrically installed on the two sets of frames (3). The ends of the three sets of guide rods (23) are slidably connected to the corresponding guide blocks (25). The screw (24) is threaded. A connecting piece (26) is fixedly connected to the main conveying pipe (2) on the corresponding guide block (25). The connecting piece (26) has a toothed groove (27). A first drive motor (28) is fixedly connected to the connecting piece (26) through a bracket. The output end of the first drive motor (28) is connected to the screw (24). When the first drive motor (28) drives the screw (24) to rotate, the rectangular frame (4) and the guide rod (23) move along the path of the guide block (25) to form a lifting area.

5. The steam nozzle adjustment device for a knitted fabric setting machine according to claim 4, characterized in that: The driving component includes a second drive motor (29) fixedly connected to the inner wall of the stenter (1). The output end of the second drive motor (29) is fixedly connected to a transmission rod (30). The end of the transmission rod (30) is fixedly connected to a gear (31) that matches the tooth groove (27). The gear (31) meshes with the tooth groove (27). When the second drive motor (29) drives the gear (31) on the transmission rod (30) to rotate, the main conveying pipe (2) and the connecting piece (26) rotate along with the tooth groove (27) to form an angle adjustment zone.

6. The steam nozzle adjustment device for a knitted fabric setting machine according to claim 5, characterized in that: The transmission pipe (9) is made of flexible and deformable tubing. When the rectangular frame (4) and the main transmission pipe (2) deflect, it is in a displacement compensation state.

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