A kind of unwinding device for cloth printing and dyeing production

Abstract

The application provides a cloth unwinding device for cloth printing and dyeing production, which comprises a rack, a unwinding mechanism and a traction component arranged on the rack, the unwinding mechanism is composed of several rotating rollers, can support the cloth roll to be processed and stably output the cloth, the traction component provides the conveying traction force for the cloth, along the cloth feeding direction, an air float box and a impurity removing component are sequentially arranged on the rack, the air float box is provided with a cavity and a slot communicating with the cavity, air is sent to the cavity by cooperating with the first fan components on both sides, the cloth can be air floated and suspended for conveying, the friction damage is reduced, and the cloth surface is preliminarily dedusted, the impurity removing component comprises two groups of dust sticking rubber rollers which are distributed at intervals and are driven to rotate by motor components, the dust sticking rubber rollers can stick and remove the attached fine impurities on the cloth surface, the cloth is cleaned again, meanwhile, a cloth loosening mechanism is arranged at the other end of the rack, the cloth loosening frame is reciprocated by driving the connecting rod component, the cloth is neatly stacked, the unwinding quality and the cleaning effect are improved by integrating multiple processes, and the quality of the subsequent printing and dyeing products is improved.

Description

Technical Field

[0001] This application relates to the field of fabric production equipment technology, and in particular to an unwinding device for fabric printing and dyeing production. Background Technology

[0002] Unwinding devices in fabric printing and dyeing production are core entry equipment in the pre-treatment process of printing and dyeing. They are used to unwind and release rolls of greige or semi-finished fabric at a uniform speed and continuously transport the fabric to downstream processes with constant tension and linear speed. However, existing unwinding machines only release the fabric without pre-treating dust, lint, and fiber debris on the fabric surface. This poses a risk of directly introducing impurities from storage, transportation, and weaving into the subsequent printing and dyeing process. When dust and debris enter the dye bath, they absorb dye and re-adhere to the fabric surface, forming irregular color spots or dye patches. At the same time, dust on the fabric surface can also cause uneven dyeing rate and penetration, resulting in local color variations and color differences between the edges and the center, which damages the color consistency of the entire fabric. Furthermore, residual dust is easily charred during high-temperature setting and pre-shrinking processes, forming scorch stains that are difficult to remove, thus causing defects in the overall dyeing process. Summary of the Invention

[0003] The purpose of this invention is to provide an unwinding device for fabric printing and dyeing production in order to solve the above-mentioned problems.

[0004] The technical solution of this application is implemented as follows: This application provides an unwinding device for fabric printing and dyeing production, including a frame, an unwinding mechanism and a traction component on the frame, the unwinding mechanism consists of several rotating rollers, used to support the fabric roll to be processed and output the fabric, the traction component is used to provide conveying traction force for the fabric, along the fabric's feeding direction, an air flotation box and a cleaning component are arranged sequentially on the frame, the air flotation box is located above the traction component; The air flotation box has an opening that extends to both ends and forms a discharge end and a feed end. The air flotation box has a cavity. Slots are evenly distributed on both sides of the opening and communicate with the cavity. A first blower is provided on both sides of the air flotation box, and the output end of the first blower faces the cavity. The impurity removal component is located on one side of the discharge end of the air flotation box. The impurity removal component includes two sets of spaced-apart sticky rollers. The top of the frame is equipped with symmetrically distributed side plates. The two sets of sticky rollers are connected to the side plates through bearing components. One set of sticky rollers is connected to a motor component through a coupling. The frame is also equipped with a cloth loosening mechanism, which includes side frames on both sides of the frame. The side frames are equipped with drive linkage components and connected to the first drive motor. The cloth loosening frame is connected between the two sets of drive linkage components. The cloth loosening mechanism and the air flotation box are located at both ends of the frame.

[0005] In one embodiment, the device further includes a displacement clamping component, which includes a support. The support is disposed on one side of the frame. The support has a first groove and a first lead screw is installed on it. One end of the first lead screw is connected to a second drive motor. A displacement base is installed on the first lead screw and a column is installed on it. The column has a second groove and a second lead screw is installed thereon. One end of the second lead screw is connected to a third drive motor. A bearing seat is installed on the second lead screw, and a bearing plate extending to the outside of the column is connected to the bearing seat. Two sets of symmetrically distributed first push rod components are provided at both ends of the bearing plate. The piston end of the first push rod component is equipped with a clamping plate. A clamping area for the fabric roll is formed between the two sets of clamping plates. The clamping area can be expanded or reduced by the cooperation of the first push rod components. The first and second lead screws work together to position the bearing plate above or away from the unwinding mechanism.

[0006] In one embodiment, a heating element is also provided on the frame. The heating element is located above the cloth loosening mechanism. The heating element includes a heating box with a slot through which the cloth passes. The heating box has a hollow structure inside. The slot has a perforated part that communicates with the inside of the heating box. Several perforated parts are provided and are spaced apart along the length of the slot. A heating plate is provided on one side of the hot drying oven, with the output end of the heating plate facing the slot. When the fabric passes through the slot, the heat generated by the heating plate is transferred to the slot position through the perforated part.

[0007] In one embodiment, the frame is further provided with two sets of spaced-apart support frames, which are staggered on the frame and located above the hot oven. Both sets of support frames are equipped with tension adjustment components, which are staggered and opposite to each other. Each tension adjustment component includes a second push rod component, which is mounted on the support frame. A receiving frame is installed on the piston end of the second push rod component, and a rotating roller is rotatably mounted on the receiving frame. Two sets of second push rod components bring the two sets of rollers closer together or further apart, thus controlling the tension during the fabric conveying process.

[0008] In one embodiment, a slitting component is also included, located between the hot drying oven and the cloth loosening mechanism, the slitting component including a support plate mounted parallel to the frame; A cutter holder is mounted on the support plate, and a blade is provided at one end of the cutter holder.

[0009] In one embodiment, a second fan is provided on both sides of the hot drying oven, with the output end of the second fan facing the interior of the hot drying oven.

[0010] In one embodiment, the support plate has mounting holes, and the mounting holes are provided in a plurality of manner and are spaced apart along the length direction of the support plate. The other end of the cutter holder is equipped with a snap-fit ​​shaft. By installing the snap-fit ​​shaft into the mounting hole, the cutter holder can be movably mounted on the frame.

[0011] In one embodiment, the cutter holder includes a fixed seat and a movable seat, the blade is located on the movable seat, the fixed seat has a groove, and one end of the movable seat is movably disposed in the groove. The blade moves closer to or further away from the fixed seat by sliding the movable seat; The snap-fit ​​shaft is located on the fixed base.

[0012] In one embodiment, a crossbar is also provided on the frame, and a roller-type meter counter is installed on the crossbar; The meter counter is located below the feed end of the air flotation tank.

[0013] In one embodiment, the drive linkage component includes a crank connecting rod and a swing arm. The crank connecting rod is connected to a first drive motor. One end of the swing arm is hinged to the crank connecting rod, and the other end is hinged to the fabric loosening frame. The first drive motor drives the swing arm and the fabric loosening frame to swing back and forth along the fabric width direction through the crank connecting rod.

[0014] The advantages or beneficial effects of the above technical solutions include at least the following: This application discloses an unwinding device for fabric printing and dyeing production. It comprises an unwinding mechanism, a traction component, an air flotation box, and a cleaning component arranged sequentially along the fabric feeding direction, with a fabric loosening mechanism at the other end of the frame, thus forming an integrated processing unit. The unwinding mechanism uses a support structure composed of several rotating rollers, which, together with an independent traction component, provides conveying traction force and controls the feeding speed and basic tension. Because the air flotation box has a hollow cavity structure with evenly spaced slots on both sides of the opening connecting the cavity, and first fans on both sides supply air to the cavity, it can effectively remove air from both sides of the fabric. A uniform air cushion layer is formed to achieve contactless conveying. At the same time, the airflow can blow away floating dust and short fibers, completing the initial dust removal pretreatment. Since the impurity removal component adopts a structure of two sets of spaced-apart sticky rollers, each set of rollers is driven by motor components and arranged close to the air flotation discharge end, secondary dust in the environment can be avoided. Through adhesion, residual fine dust and stubborn lint are effectively removed, achieving deep cleaning of the fabric surface. Through the cooperation of the air flotation box and the impurity removal component, the impurity removal operation during unwinding is realized, thereby ensuring the printing and dyeing quality and solving the problem of the single structure of the existing unwinding device. Attached Figure Description

[0015] The accompanying drawings illustrate exemplary embodiments of the present application and, together with the description thereof, serve to explain the principles of the present application. These drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification.

[0016] Figure 1 A structural schematic diagram of the unwinding device according to an embodiment of this application is shown from a first perspective; Figure 2 A structural schematic diagram of the unwinding device according to an embodiment of this application is shown from a second perspective; Figure 3 A structural schematic diagram of the unwinding device according to an embodiment of this application is shown from a third perspective; Figure 4 A cross-sectional structural schematic diagram of the unwinding device according to an embodiment of this application is shown; Figure 5 A structural schematic diagram of the displacement clamping component according to an embodiment of this application is shown; Figure 6 A partial structural schematic diagram of the unwinding device according to an embodiment of this application is shown; Figure 7 Examples of this application are presented. Figure 4 Enlarged view of point A in the middle; Reference numerals: 1. Frame; 11. Unwinding mechanism; 12. Traction component; 13. Support frame; 14. Crossbar; 141. Meter counter; 2. Air flotation box; 21. Opening; 211. Slotting; 22. First fan component; 3. Impurity removal components; 31. Adhesive rollers for dust removal; 32. Motor components; 4. Fabric loosening mechanism; 41. Drive linkage assembly; 411. Crank connecting rod assembly; 412. Swing arm; 42. First drive motor; 43. Fabric loosening frame; 5. Displacement clamping component; 51. Support; 511. First lead screw component; 512. Second drive motor; 513. Displacement base; 52. Column; 521. Second lead screw component; 522. Third drive motor; 53. Bearing seat; 531. Bearing plate; 54. First push rod component; 541. Clamping plate; 6. Hot drying components; 61. Hot drying oven; 62. Heating plates; 63. Second fan components; 7. Tension adjustment component; 71. Second push rod component; 72. Receiving frame; 721. Rotary roller; 8. Cutting component; 81. Support plate; 811. Mounting hole; 82. Cutting blade holder; 821. Snap-fit ​​shaft; 822. Fixed seat; 823. Movable seat; 83. Blade component. Detailed Implementation

[0017] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While some embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this application. It should be understood that the drawings and embodiments of this application are for illustrative purposes only and are not intended to limit the scope of protection of this application.

[0018] It should be noted that, where there is no conflict, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be understood that the term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this application are used only to distinguish different devices, modules, or units, and are not intended to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0020] It should be noted that the terms "a" and "a number" used in this application are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0021] The names of the messages or information exchanged between multiple devices in the embodiments of this application are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0022] Reference Figures 1-6A dewinding device for fabric printing and dyeing production includes a frame 1. The frame 1 serves as the mounting base and structural support for the entire device, providing a unified positioning reference for all moving and functional components, ensuring the positional accuracy and coaxiality of each unit. The frame 1 is equipped with an unwinding mechanism 11 and a traction component 12. The unwinding mechanism 11 consists of several rotating rollers 721, used to support the fabric roll to be processed and output the fabric. It adopts a multi-roller 721 lifting structure, where the fabric roll to be processed is directly placed on several parallel rotating rollers 721, and passively rotated and output by the fabric's traction force. The traction component 12 is used to... It provides conveying traction force along the material feeding direction, providing continuous and stable conveying traction force for the material, accurately controlling the material feeding line speed, and maintaining constant tension during the conveying process to avoid wrinkles caused by material deviation, stacking, or uneven tension. The frame 1 is equipped with an air flotation box 2 and a cleaning component 3 in sequence. The air flotation box 2 is located above the traction component 12. The air flotation box 2 and the cleaning component 3 are arranged in sequence along the material feeding direction, and the air flotation box 2 is located above the traction component 12. It adopts a vertical spatial layout of low-level traction and high-level processing, which reduces the horizontal footprint of the equipment while ensuring the continuity of the process. The air flotation box 2 has openings 21 extending to both ends, forming a discharge end and a feed end. The air flotation box 2 has a cavity. Grooves 211 are evenly distributed on both sides of the openings 21 and communicate with the cavity. The design of the evenly distributed grooves 211 ensures consistent airflow along the fabric width, preventing insufficient local air pressure from causing the fabric to stick to the walls. First fan components 22 are installed on both sides of the air flotation box 2. These first fan components 22 are motor-driven fans, as is common in the prior art. The output end of the first fan component 22 faces the cavity. The air outlets of the first fan components 22 on both sides of the air flotation box 2 face the cavity, providing a continuous and stable positive pressure to the cavity. After the first blower component 22 blows air into the cavity, a positive pressure is formed inside the cavity. The airflow is evenly sprayed onto both sides of the fabric through the slot 211, forming a stable air cushion layer between the fabric and the inner wall of the air flotation box 2. This allows the fabric to suspend in the middle of the cavity, avoiding hard contact between the fabric and the air flotation box 2 and reducing damage to the fabric surface caused by conveying friction. At the same time, the sprayed airflow continuously blows the fabric surface, which can blow away loose dust, short fibers, broken yarns and other impurities attached to the fabric surface, completing the pre-dust removal. This not only reduces the workload of the subsequent impurity removal component 3, but also carries impurities out of the air flotation box 2 with the airflow, preventing impurities from accumulating in the air flotation box 2 and causing secondary pollution. The impurity removal component 3 is located on one side of the discharge end of the air flotation box 2, adjacent to the discharge end of the air flotation box 2. After the fabric is treated by air flotation, it directly enters the impurity removal process without any additional exposed conveying section in between, which avoids the fabric from falling into the environment again and ensures the continuity of the cleaning effect. The impurity removal component 3 includes two sets of spaced-apart sticky rollers 31. The top of the frame 1 is provided with symmetrically distributed side plates. The two sets of sticky rollers 31 are connected to the side plates through bearing components. One set of sticky rollers 31 is connected to a motor component 32 through a coupling. The two sets of sticky rollers 31 are arranged at intervals. When the fabric passes between the two rollers, both the front and back sides are in full contact with the surface of the sticky rollers 31. The actively rotating sticky rollers 31 adhere and peel off the stubborn fine dust, short fibers, lint and other impurities that were not removed in the air flotation process, so as to achieve deep cleaning of the fabric surface. The frame 1 is also equipped with a fabric loosening mechanism 4. The fabric loosening mechanism 4 includes side frames on both sides of the frame 1. The side frames are equipped with drive linkage components 41 and connected to the first drive motor 42. A fabric loosening frame 43 is connected between the two sets of drive linkage components 41. When the fabric loosening frame 43 reciprocates, it will dynamically change the length of the fabric conveying path and periodically release and tighten the fabric slightly, thereby releasing the internal stress accumulated by the fabric during roll storage and unwinding traction, smoothing the fabric creases, correcting the curled edges, and keeping the fabric in a relaxed and flat state, ensuring the uniform tension of the output fabric, thereby completing the stacking operation of the fabric. The cloth loosening mechanism 4 and the air flotation box 2 are located at both ends of the frame 1. The two are placed at both ends of the frame 1 to form a two-end functional zone with cleaning conveying at one end and cloth loosening at the other end. This allows each process to be arranged sequentially along the length of the frame 1, with clear functional zones that do not interfere with each other, while the overall structure of the machine is regular.

[0023] Based on the above structure, when the device is working, the fabric roll to be processed is placed on the rotating roller 721 of the unwinding mechanism 11. After the traction component 12 is started, it applies a stable traction force, and the rotation drives the fabric roll to continuously output the fabric. The fabric enters the air flotation box 2 from the feed end along the vertical path. The first fan components 22 on both sides continuously blow air into the cavity to form positive pressure. The airflow is evenly sprayed onto both sides of the fabric through the slot 211 to form an air cushion layer, so that the fabric is suspended in the air flotation box 2 to achieve contactless conveying. At the same time, the airflow blows on the fabric surface to remove loose dust and long fibers, completing the pre-dust removal. After the fabric is fed out from the discharge end, it directly enters the impurity removal component 3 and passes between two sets of dust-adhesive rollers 31. The actively rotating rollers adhere and remove the fine dust and short fibers remaining on the fabric surface, completing deep cleaning. The cleaned fabric is then conveyed to the fabric loosening mechanism 4 at the other end of the frame 1. The first drive motor 42 drives the fabric loosening frame 43 to perform periodic reciprocating motion through the drive linkage component 41, dynamically adjusting the fabric conveying tension, releasing the internal stress accumulated in the roll, eliminating creases and curling edges, and finally outputting clean, flat fabric with uniform tension for use in subsequent printing and dyeing processes.

[0024] In one embodiment, reference is made to Figure 1 , Figure 2 and Figure 5 It also includes a displacement clamping component 5, which includes a support 51. The support 51 is disposed on one side of the frame 1. The support 51 has a first groove and a first lead screw 511 is installed on it. One end of the first lead screw 511 is connected to a second drive motor 512. A displacement base 513 and a column 52 are installed on the first lead screw 511. The second drive motor 512 can drive the first lead screw 511 to rotate, so that the displacement base 513 drives the column 52 to move relative to the first lead screw 511 along its length. The column 52 has a second groove and a second lead screw 521 is installed thereon. One end of the second lead screw 521 is connected to a third drive motor 522. A bearing seat 53 is installed on the second lead screw 521. A bearing plate 531 extending to the outside of the column 52 is connected to the bearing seat 53. The third drive motor 522 can drive the second lead screw 521 to rotate, so that the bearing seat 53 drives the bearing plate 531 to move relative to the second lead screw 521 in the length direction. Two sets of symmetrically distributed first push rod components 54 are provided at both ends of the bearing plate 531. The first push rod components 54 adopt the pneumatic push rod in the prior art. The piston end of the first push rod component 54 is equipped with a clamping plate 541. The clamping plate 541 has an arc-shaped end. A clamping area for the fabric roll is formed between the two sets of clamping plates 541. The clamping area can be expanded or reduced by the cooperation of the first push rod components 54. Through the cooperation of the first lead screw 511 and the second lead screw 521, the bearing plate 531 is positioned above or away from the unwinding mechanism 11. During feeding, the first lead screw 511 drives the bearing plate 531 to move above the fabric roll storage position, and the second lead screw 521 drives the bearing plate 531 to descend. The two sets of first push rod components 54 push the clamping plate 541 to clamp the two ends of the fabric roll. Then, the fabric roll is lifted and horizontally transported to the top of the unwinding mechanism 11. After being lowered and placed, the clamping is released and reset, completing the fully automatic feeding. This replaces manual handling of heavy fabric rolls, reduces labor intensity and safety risks. The lead screw drive has high positioning accuracy, the fabric roll is accurately placed and aligned, avoiding unwinding deviation. It is suitable for fabric rolls of different widths and diameters, improving the overall flexibility of the equipment. The second drive motor 512 and the third drive motor 522 mentioned above both adopt servo drive motors in the prior art.

[0025] In one embodiment, reference is made to Figure 1 , Figure 3 , Figure 4 and Figure 6The frame 1 is also equipped with a hot drying component 6, which is used to perform hot drying operation on the fabric to ensure the dryness of the fabric. The hot drying component 6 is located above the fabric loosening mechanism 4. The hot drying component 6 includes a hot drying box 61, which has a slot for the fabric to pass through. The hot drying box 61 has a hollow structure. The slot has a hollow part that communicates with the interior of the hot drying box 61. Several hollow parts are provided and are distributed at intervals along the length of the slot, so that the gas in the hot drying box 61 can flow between the slot and the hollow part. A heating plate 62 is provided on one side of the hot drying oven 61. The output end of the heating plate 62 faces the slot. When the fabric passes through the slot, the heat generated by the heating plate 62 is transferred to the slot position through the hollow part. Before the fabric is loosened, it passes through the slot of the hot drying oven 61. The heat generated by the heating plate 62 is evenly applied to the fabric surface through the hollow part to preheat and dry the fabric at low temperature, remove surface moisture, and soften the fibers with heat. This prevents color spots and color differences caused by uneven humidity during printing and dyeing. In addition, the extensibility of the fibers is improved under the warm state, which, together with the subsequent fabric loosening process, improves the wrinkle removal and flattening effect.

[0026] In one embodiment, reference is made to Figure 1 , Figure 4 and Figure 6 The frame 1 is also provided with two sets of spaced support frames 13, which are staggered on the frame 1 and located above the hot oven 61. Both sets of support frames 13 are equipped with tension adjustment components 7 for controlling the tension of the fabric. The two sets of tension adjustment components 7 are staggered and opposite to each other. The tension adjustment component 7 includes a second push rod component 71. The second push rod component 71 adopts the pneumatic push rod in the prior art. The second push rod component 71 is set on the support frame 13. The piston end of the second push rod component 71 is equipped with a receiving frame 72. A rotating roller 721 is rotatably set on the receiving frame 72. The rotating roller 721 is used to contact the fabric. Two sets of second push rod components 71 bring the two sets of rotating rollers 721 closer together or further apart, thereby controlling the tension during the fabric conveying process. The fabric alternately wraps around the two sets of rotating rollers 721 in an S-shape, forming a tension wrap angle. When the second push rod component 71 extends, the rotating rollers 721 move closer together, increasing the wrap angle and raising the tension. When the push rod retracts, the rotating rollers 721 move further apart, decreasing the wrap angle and lowering the tension. This dynamically matches the tension fluctuations during the conveying process, achieving continuous and adjustable conveying tension. It avoids excessive tension causing fabric stretching and deformation, weft skew, or insufficient tension causing misalignment and stacking. Furthermore, the staggered double roller layout allows for a large adjustment stroke and stable operation, adapting to fabrics of different weights and materials. It stabilizes tension under warm conditions after heat drying, improving the flatness of the fabric surface.

[0027] In one embodiment, reference is made to Figure 1 , Figure 4 and Figure 7It also includes a slitting component 8, which is located between the hot drying oven 61 and the fabric loosening mechanism 4. The slitting component 8 includes a support plate 81 installed parallel to the frame 1, a cutter seat 82 installed on the support plate 81, and a blade 83 provided at one end of the cutter seat 82. After the fabric is heated and the tension is stabilized, it is longitudinally cut into narrow widths of fabric when passing through the blade 83, and then fed into the fabric loosening mechanism 4 to flatten it. The slitting operation is completed simultaneously in the unwinding process, integrating the unwinding and slitting processes, shortening the process flow, reducing equipment footprint and secondary handling losses, and slitting under stable tension, resulting in a flat cut without burrs, high slitting accuracy, and avoiding insufficient flattening of the edges of wide fabrics.

[0028] In one embodiment, reference is made to Figure 1 , Figure 3 and Figure 6 The hot drying oven 61 is equipped with a second fan 63 on both sides. The output end of the second fan 63 faces the inside of the hot drying oven 61. While the heating plate heats up, the second fan 63 on both sides drives the hot air inside the oven to circulate in a forced manner, so that the heat can be more evenly diffused to the surface of the fabric through the hollow part, and the moisture evaporated from the fabric can be discharged from the oven in time. The second fan 63 enhances the hot air circulation, improves the heat exchange efficiency, reduces energy consumption, eliminates the temperature difference inside the oven, and ensures that the fabric is heated in the width direction.

[0029] In one embodiment, reference is made to Figure 1 , Figure 4 and Figure 7 The support plate 81 has mounting holes 811, which are arranged in several places and spaced apart along the length of the support plate 81. The other end of the cutter holder 82 is provided with a snap-fit ​​shaft 821. When the snap-fit ​​shaft 821 is installed on the mounting hole 811, the cutter holder 82 is movably installed on the frame 1. When adjusting the cutting width, the snap-fit ​​shaft 821 is pulled out from the original mounting hole 811 and inserted into the corresponding mounting hole 811 to complete the blade width position switching. No tools are required for disassembly and assembly. The cutting width adjustment is convenient and efficient, which greatly shortens the downtime for changing orders. At the same time, the multi-point mounting holes 811 are accurately positioned to ensure the consistency of the cutting width.

[0030] In one embodiment, reference is made to Figure 1 , Figure 4 and Figure 7The cutter holder 82 includes a fixed seat 822 and a movable seat 823. The blade 83 is located on the movable seat 823. The fixed seat 822 has a groove. One end of the movable seat 823 is movably disposed in the groove. By sliding the movable seat 823, the blade 83 moves closer to or further away from the fixed seat 822. During slitting operations, the movable seat 823 is pushed out, and the blade 83 cuts into the fabric. When threading the fabric, changing rolls, or when slitting is not required, the movable seat 823 is pulled back along the groove, and the blade 83 disengages from the fabric, thereby achieving rapid advance and retreat of the blade 83. When threading the fabric or changing rolls, the blade retraction avoids scratching the fabric and the operator, improving safety. The slitting or shrinking mode can be switched without completely disassembling the cutter holder 82. At the same time, the guide of the groove ensures that the feed position of the blade 83 is accurate and the cut is stable. The locking shaft 821 is located on the fixed seat 822, thereby realizing the movable installation of the cutter holder 82.

[0031] In one embodiment, reference is made to Figure 1 The frame 1 is also equipped with a crossbar 14, on which a roller-type meter counter 141 is installed. The meter counter 141 is located below the feed end of the air flotation box 2. The fabric is conveyed close to the surface of the roller of the meter counter 141. The roller is driven to rotate by friction. The meter counter 141 calculates and counts the length of the unwound fabric in real time based on the number of roller rotations, accurately measuring the unwound length in real time, which is convenient for production batch control and material accounting. At the same time, the roller structure is compatible with a variety of fabric materials.

[0032] In one embodiment, reference is made to Figure 1 and Figure 4 The drive linkage component 41 includes a crank connecting rod 411 and a swing arm 412. The crank connecting rod 411 is connected to the first drive motor 42. One end of the swing arm 412 is hinged to the crank connecting rod 411, and the other end is hinged to the fabric loosening frame 43. The first drive motor 42 drives the swing arm 412 and the fabric loosening frame 43 to swing back and forth along the width of the fabric through the crank connecting rod 411. The first drive motor 42 drives the crank connecting rod 411 to make a circular motion. The swing arm 412 converts the rotational motion into the horizontal reciprocating swing of the fabric loosening frame 43 along the width of the fabric, which stretches the fabric laterally and releases the internal stress of the fibers. The crank connecting rod 411 runs smoothly without impact or jamming. The fabric loosening action is uniform and continuous. The lateral swing along the width of the fabric improves the stretching effect on the longitudinal folds of the roll. Furthermore, the swing frequency can be flexibly adjusted by the speed of the first drive motor 42 to adapt to different conveying speeds and fabric materials.

[0033] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0034] Those skilled in the art should understand that the above embodiments are merely for illustrative purposes and are not intended to limit the scope of this application. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of this application.

Claims

1. An unwinding device for fabric printing and dyeing production, comprising a frame, wherein an unwinding mechanism and a traction component are provided on the frame, the unwinding mechanism being composed of several rotating rollers for supporting the fabric roll to be processed and outputting the fabric, and the traction component for providing conveying traction force for the fabric, characterized in that: Along the fabric feeding direction, an air flotation box and a debris removal component are sequentially arranged on the frame, with the air flotation box located above the traction component; The air flotation box has an opening extending to both ends and forming a discharge end and a feed end. The air flotation box has a cavity. Slots are evenly distributed on both sides of the opening and communicate with the cavity. A first fan component is provided on both sides of the air flotation box, and the output end of the first fan component faces the cavity. The impurity removal component is located on one side of the discharge end of the air flotation box. The impurity removal component includes two sets of spaced-apart sticky rollers. The top of the frame is provided with symmetrically distributed side plates. The two sets of sticky rollers are connected to the side plates through bearing components. One set of sticky rollers is connected to a motor component through a coupling. The frame is also provided with a cloth loosening mechanism, which includes side frames on both sides of the frame. The side frames are provided with drive linkage components and connected to the first drive motor. The two sets of drive linkage components are connected by a cloth loosening frame. The loosening mechanism and the air flotation box are located at both ends of the frame.

2. The unwinding device for fabric printing and dyeing production according to claim 1, characterized in that: It also includes a displacement clamping component, which includes a support. The support is disposed on one side of the frame. The support has a first groove and a first lead screw is installed on it. One end of the first lead screw is connected to a second drive motor. A displacement base and a column are installed on the first lead screw. The column has a second groove and a second lead screw is installed thereon. One end of the second lead screw is connected to a third drive motor. A bearing seat is installed on the second lead screw. A bearing plate extending to the outside of the column is connected to the bearing seat. The bearing plate has two sets of symmetrically distributed first push rod components at both ends. The piston end of the first push rod component is equipped with a clamping plate. A clamping area for the fabric roll is formed between the two sets of clamping plates. The clamping area can be expanded or reduced by the cooperation of the first push rod components. The cooperation of the first lead screw and the second lead screw allows the bearing plate to be positioned above or away from the unwinding mechanism.

3. The unwinding device for fabric printing and dyeing production according to claim 1, characterized in that: The frame is also equipped with a hot drying component, which is located above the fabric loosening mechanism. The hot drying component includes a hot drying box with a slot through which the fabric passes. The hot drying box has a hollow structure inside, and the slot has a hollow part that communicates with the inside of the hot drying box. Several hollow parts are provided and are spaced apart along the length of the slot. A heating plate is provided on one side of the hot drying oven, with the output end of the heating plate facing the slot. When the fabric passes through the slot, the heat generated by the heating plate is transmitted to the slot position through the hollow part.

4. The unwinding device for fabric printing and dyeing production according to claim 3, characterized in that: The frame is also provided with two sets of spaced-apart support frames, which are staggered on the frame and located above the hot oven. Both sets of support frames are equipped with tension adjustment components, which are staggered and opposite to each other. Each tension adjustment component includes a second push rod component, which is disposed on the support frame. A receiving frame is installed on the piston end of the second push rod component, and a rotating roller is rotatably disposed on the receiving frame. The two sets of second push rod components bring the two sets of rollers closer together or further apart, thereby controlling the tension during the fabric conveying process.

5. The unwinding device for fabric printing and dyeing production according to claim 3, characterized in that: It also includes a slitting component located between the hot drying oven and the cloth loosening mechanism, the slitting component including a support plate mounted parallel to the frame; A cutter holder is mounted on the support plate, and a blade is provided at one end of the cutter holder.

6. The unwinding device for fabric printing and dyeing production according to claim 3, characterized in that: The hot drying oven is equipped with a second fan on both sides, with the output end of the second fan facing the interior of the hot drying oven.

7. The unwinding device for fabric printing and dyeing production according to claim 5, characterized in that: The support plate has mounting holes, and several mounting holes are provided and spaced apart along the length direction of the support plate. The other end of the cutter holder is provided with a snap-fit ​​shaft. When the snap-fit ​​shaft is installed on the mounting hole, the cutter holder is movably mounted on the frame.

8. The unwinding device for fabric printing and dyeing production according to claim 7, characterized in that: The cutter holder includes a fixed seat and a movable seat, the blade is located on the movable seat, the fixed seat has a groove, and one end of the movable seat is movably disposed in the groove; The blade can be moved closer to or further away from the fixed seat by sliding the movable seat; The snap-fit ​​shaft is located on the fixed base.

9. The unwinding device for fabric printing and dyeing production according to claim 1, characterized in that: The frame is also equipped with a crossbar, on which a roller-type meter counter is mounted; The meter counter is located below the feed end of the air flotation box.

10. The unwinding device for fabric printing and dyeing production according to claim 1, characterized in that: The drive linkage component includes a crank connecting rod and a swing arm. The crank connecting rod is connected to the first drive motor. One end of the swing arm is hinged to the crank connecting rod, and the other end is hinged to the fabric loosening frame. The first drive motor drives the swing arm and the fabric loosening frame to swing back and forth along the fabric width direction through the crank connecting rod.

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