Light knitted velvet fabric circulating drying device
The lightweight knitted fleece fabric drying device, which uses low-temperature flexible airflow and S-shaped meandering motion, solves the problem of thermal decomposition of spandex fibers caused by high-temperature drying, maintains the elasticity and fleece structure of the fabric, and achieves a uniform and thorough drying effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-03
AI Technical Summary
When existing fabric drying equipment dries high-elasticity, lightweight, and soft knitted fleece fabrics at high temperatures, the thermal decomposition of spandex fibers causes molecular chain breakage, resulting in a decrease in the fabric's resilience, reduced neat arrangement of the pile and luster, and a rougher feel.
The drying process employs a low-temperature flexible airflow method, which delivers air evenly through the air outlet slots of multiple air outlets. Combined with S-shaped meandering motion and guide rollers, it avoids direct high-temperature blowing, maintains the elasticity and pile structure of the fabric, and uses heating wires for even heating and dust screens to filter impurities, ensuring drying effect and quality.
It effectively prevents the thermal decomposition of spandex fibers, maintains the elasticity and neatness of the fabric's pile, enhances its luster and smooth feel, reduces mechanical friction damage, and meets the quality requirements of high-end knitted fleece fabrics.
Smart Images
Figure CN224080645U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of fabric production technology, specifically to a circulating drying device for lightweight knitted fleece fabric. Background Technology
[0002] Fabric is the material used to make clothing. Fabric not only interprets the style and characteristics of clothing, but also directly affects the color and shape of clothing. After the clothing fabric is processed, it needs to be dried by a designated drying device.
[0003] However, most existing fabric drying devices use high-temperature drying. When drying high-elasticity, lightweight, and soft knitted fleece fabrics, the elastic fibers such as spandex in the knitted fleece fabric will undergo thermal decomposition at high temperatures. The molecular chains break, resulting in a permanent decrease in elasticity. This causes the fabric to easily loosen and deform after repeated wear. Furthermore, the high temperature may damage the neat arrangement of the nap on the fabric surface, leading to reduced luster and a rougher feel. Utility Model Content
[0004] To address the shortcomings of existing technologies, this application provides a lightweight knitted fleece fabric circulating drying device, which has the advantages of maintaining fabric characteristics while drying. It solves the problems that most existing fabric drying devices use high-temperature drying, which causes elastic fibers such as spandex in the knitted fleece fabric to undergo thermal decomposition at high temperatures when drying high-elastic lightweight soft knitted fleece fabric. The molecular chains break down, resulting in a permanent decrease in elasticity, causing the fabric to easily loosen and deform after repeated wear. Furthermore, the high temperature may damage the neat arrangement of the nap on the fabric surface, leading to reduced luster and a rougher feel.
[0005] To achieve the above objectives, this application provides the following technical solution: a lightweight knitted fleece fabric circulating drying device, comprising a box body, wherein multiple conveying rollers arranged in a rectangular array are rotatably connected inside the box body, multiple fixing blocks arranged in a rectangular array are fixedly connected to one side of the box body, and air outlet plates are fixedly connected to the ends of the multiple fixing blocks in pairs away from the box body, and multiple air outlet slots arranged in a rectangular array are opened on both sides of the air outlet plates, a first guide roller is rotatably connected to one side of the box body, and a second guide roller is rotatably connected to the end of the box body away from the air outlet slot.
[0006] The above-described solution utilizes the uniform and flexible airflow from the air outlet slots on both sides of the multi-outlet plate to avoid the thermal decomposition of spandex fibers caused by traditional high-temperature direct blowing, thus preventing molecular chain breakage and maintaining the fabric's elasticity. The low-temperature and uniform flexible airflow from the outlet slots avoids damaging the surface pile structure, maintaining the neat arrangement of the pile and ensuring the fabric's luster and smooth feel, meeting the quality requirements of high-end knitted fleece fabrics. The conveyor rollers guide the fabric in an S-shaped, meandering motion, extending the fabric's residence time within the chamber, and ensuring simultaneous contact of the front and back sides with the airflow, resulting in more even and thorough drying. The cooperation of the first and second guide rollers ensures smooth fabric entry and exit, reducing mechanical friction and tearing damage to the soft knitted fleece, thus lowering the risk of pilling. This device dries lightweight, high-elastic knitted fleece fabrics using a low-temperature air penetration drying method, preserving the fabric's characteristics during the drying process.
[0007] Furthermore, a feed inlet is provided on one side of the box, and a discharge outlet is provided on the side of the box away from the feed inlet.
[0008] With the above method, the wet fabric enters the box from the inlet, and the dried fabric is discharged from the outlet.
[0009] Furthermore, two feed rollers arranged in a mirror image are fixedly connected to one side of the box body, and two discharge rollers arranged in a mirror image are fixedly connected to the side of the box body away from the feed rollers.
[0010] With the above scheme, the feed roller and the discharge roller are driven by servo motors to drive the fabric in and out.
[0011] Furthermore, a heating box is fixedly connected to the upper end of the housing, and multiple heating wires arranged in a rectangular array are fixedly connected inside the upper end of the heating box. Two air inlet pipes arranged in a mirror distribution are fixedly connected to the upper end of the heating box, and a fan is fixedly connected inside the two air inlet pipes.
[0012] The above scheme involves fixing multiple heating wires arranged in a rectangular array inside the upper part of the heating chamber. The rectangular array layout ensures a more uniform distribution of the heating wires, which helps to form a more uniform heating area inside the heating chamber, ensuring stable and reliable heating effect. This allows for more efficient and uniform heating of the air entering the heating chamber. Two air inlet pipes arranged in a mirror image are fixedly connected to the upper part of the heating chamber, allowing outside air to enter the heating chamber more smoothly and quickly. Fans are fixedly connected inside the two air inlet pipes, which can actively draw outside air into the heating chamber, forming a forced air intake effect to ensure sufficient air enters the heating chamber and guarantee the smooth progress of the heating process.
[0013] Furthermore, dustproof nets are fixedly connected to the upper ends of the two air inlet pipes.
[0014] Through the above solution, the dustproof net can intercept dust, particulate matter, fibers and other impurities in the outside air. When the fan is running, a large amount of air is drawn into the air inlet pipe. Without the dustproof net, these impurities will directly enter the heating box with the air. Long-term accumulation may cause the heating wire surface to be covered with dust, affecting the heat dissipation and heating efficiency of the heating wire, and may even damage the heating wire due to local overheating.
[0015] Furthermore, four connecting square tubes arranged in a straight line are fixedly connected to one side of the heating box. The end of the connecting square tubes away from the heating box passes through the box body and is fixedly connected to the air outlet plate respectively.
[0016] The above method uses four connected square tubes arranged in a straight line to transport hot air from the heating chamber to the interior of the air outlet plate, and then blows it out from the air outlet slot.
[0017] Furthermore, a side cover is rotatably connected to one side of the box via a hinge, and a handle is fixedly connected to the bottom end of one side of the side cover.
[0018] With the above solution, the side cover is made of tempered glass and is used to observe the fabric conveying status inside the box. The side cover can be opened by rotating the hinge to deploy the fabric inside the box.
[0019] Furthermore, a controller is fixedly connected to one side of the surface of the housing.
[0020] With the above solution, the controller is installed on the surface of the enclosure, allowing operators to easily operate the device.
[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0022] This lightweight knitted fleece fabric circulating drying device uses a flexible airflow system with air outlets on both sides of a multi-outlet plate to deliver air evenly, avoiding the thermal decomposition of spandex fibers caused by traditional high-temperature direct blowing. This prevents molecular chain breakage and maintains the fabric's elasticity. The low-temperature and uniform flexible airflow from the air outlets avoids damaging the surface pile structure, maintaining the neat arrangement of the pile and ensuring the fabric's luster and smooth touch, meeting the quality requirements of high-end knitted fleece fabrics. The conveyor rollers guide the fabric in an S-shaped meandering motion, extending the fabric's residence time in the chamber and ensuring that both sides are in contact with the airflow simultaneously, resulting in more even and thorough drying. The cooperation of the first and second guide rollers ensures smooth fabric entry and exit, reducing mechanical friction and tearing damage to the soft knitted fleece, and lowering the risk of pilling. This device dries lightweight, high-elastic knitted fleece fabrics through low-temperature air penetration, preserving the fabric's characteristics while drying. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this application;
[0024] Figure 2 This is a schematic diagram of the internal structure of the structure in this application;
[0025] Figure 3 This is a schematic diagram of the air outlet structure of this application.
[0026] Figure 4 This is a schematic diagram of the internal structure of the heating box in this application.
[0027] Figure 5 This is a cross-sectional view of the overall structure of this application.
[0028] In the picture:
[0029] 1. Housing; 2. Conveying roller; 3. Fixing block; 4. Air outlet plate; 5. Air outlet duct; 6. First guide roller; 7. Second guide roller; 8. Feed inlet; 9. Discharge outlet; 10. Feed roller; 11. Discharge roller; 12. Heating box; 13. Heating wire; 14. Air inlet pipe; 15. Fan; 16. Dustproof net; 17. Connecting square tube; 18. Side cover; 19. Handle; 20. Controller. Detailed Implementation
[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0031] Please see Figure 1 , Figure 2 and Figure 3This embodiment of a lightweight knitted fleece fabric circulating drying device includes a housing 1. Multiple conveyor rollers 2 arranged in a rectangular array are rotatably connected inside the housing 1. The conveyor rollers 2 guide the fabric in an S-shaped, meandering motion, extending the fabric's residence time within the housing 1 and ensuring simultaneous contact of both sides with the airflow for more even and thorough drying. Multiple fixed blocks 3 arranged in a rectangular array are fixedly connected to one side of the housing 1. Each pair of fixed blocks 3 has an air outlet plate 4 fixedly connected to its end furthest from the housing 1. Multiple air outlet slots 5 arranged in a rectangular array are opened on both sides of the air outlet plate 4. The air outlet slots 5 evenly distribute the air through the air outlet plates 4. The flexible airflow avoids the thermal decomposition of spandex fibers caused by traditional high-temperature direct blowing, prevents molecular chain breakage, maintains the elasticity of the fabric, and avoids damage to the surface pile structure by blowing out the air outlet 5, maintaining the neat arrangement of the pile, ensuring the luster and smooth touch of the fabric, and meeting the quality requirements of high-end knitted fleece fabrics. A first guide roller 6 is rotatably connected to one side of the box 1, and a second guide roller 7 is rotatably connected to one end of the air outlet 5 inside the box 1. The cooperation of the first guide roller 6 and the second guide roller 7 realizes the smooth entry and exit of the fabric, reduces mechanical friction and pulling damage to the soft knitted fleece, and reduces the risk of pilling.
[0032] Please see Figure 1 , Figure 2 and Figure 4 A feed inlet 8 is provided on one side of the housing 1, and a discharge outlet 9 is provided on the side of the housing 1 away from the feed inlet 8. Wet fabric enters the housing 1 through the feed inlet 8, and the dried fabric exits the housing 1 through the discharge outlet 9. Two feed rollers 10 are fixedly connected to one side of the housing 1 in a mirror-shaped arrangement, and two discharge rollers 11 are fixedly connected to the side of the housing 1 away from the feed rollers 10 in a mirror-shaped arrangement. The feed rollers 10 and discharge rollers 11 are driven by servo motors to drive the fabric in and out. A heating box 12 is fixedly connected to the upper end of the housing 1. Multiple heating wires 13 arranged in a rectangular array are fixedly connected inside the upper end of the heating box 12. Two air inlet pipes 14 are fixedly connected to the upper end of the heating box 12 in a mirror-shaped arrangement. The two air inlet pipes 14 are internally fixed... A fan 15 is fixedly connected to the upper part of the heating chamber 12. Multiple heating wires 13 arranged in a rectangular array are fixedly connected inside the upper part of the heating chamber 12. The rectangular array layout can make the heating wires 13 distributed more evenly, which helps to form a more uniform heating area in the heating chamber 12, ensuring stable and reliable heating effect, and achieving more efficient and uniform heating of the air entering the heating chamber 12. Two air inlet pipes 14 arranged in a mirror distribution are fixedly connected to the upper part of the heating chamber 12, so that the outside air can enter the heating chamber 12 more smoothly and quickly. A fan 15 is fixedly connected inside the two air inlet pipes 14. The fan 15 can actively draw outside air into the heating chamber 12 to form a forced air intake effect, ensuring that enough air enters the heating chamber 12 and ensuring the smooth progress of the heating process.
[0033] Please see Figure 1 , Figure 4 and Figure 5 Dustproof nets 16 are fixedly connected to the upper ends of the two air inlet pipes 14. The dustproof nets 16 can intercept dust, particulate matter, fibers and other impurities in the outside air. When the fan 15 is running, a large amount of air is drawn into the air inlet pipes 14. Without the dustproof nets 16, these impurities will directly enter the heating box 12 with the air. Long-term accumulation may cause the surface of the heating wire 13 to be covered with dust, affecting the heat dissipation and heating efficiency of the heating wire 13, and may even damage the heating wire 13 due to local overheating. Four connecting square tubes 17 arranged in a straight array are fixedly connected to one side of the heating box 12. The end of the connecting square tube 17 away from the heating box 12 passes through the box body 1 and is respectively connected to the outlet. The air outlet plate 4 is fixedly connected, and the hot air in the heating box 12 is transported to the interior of the air outlet plate 4 through four connected square tubes 17 arranged in a straight line, and blown out from the air outlet slot 5. A side cover 18 is rotatably connected to one side of the box body 1 via a hinge. A handle 19 is fixedly connected to the bottom of one side of the side cover 18. The side cover 18 is made of tempered glass and is used to observe the fabric conveying status inside the box body 1. The side cover 18 can be opened by rotating the hinge to deploy the fabric inside the box body 1. A controller 20 is fixedly connected to one side of the surface of the box body 1. The controller 20 is installed on the surface of the box body 1 so that the operator can easily operate the device.
[0034] In this embodiment, the lightweight knitted fleece fabric circulating drying device uses the air outlet grooves 5 on both sides of the multi-outlet plate 4 to deliver air evenly and flexibly, avoiding the thermal decomposition of spandex fibers caused by traditional high-temperature direct blowing, preventing molecular chain breakage, and maintaining the elasticity of the fabric. The low-temperature and uniform flexible airflow blown out by the air outlet grooves 5 avoids damaging the surface pile structure, maintains the neat arrangement of the pile, and ensures the fabric's luster and smooth touch, meeting the quality requirements of high-end knitted fleece fabrics. The conveyor roller 2 guides the fabric in an S-shaped meandering motion, extending the fabric's residence time in the box 1, and ensuring that both the front and back sides are in contact with the airflow, making the drying more even and thorough. The cooperation of the first guide roller 6 and the second guide roller 7 ensures the smooth entry and exit of the fabric, reducing mechanical friction and pulling damage to the soft knitted fleece, and reducing the risk of pilling. This device dries lightweight, high-elastic knitted fleece fabric through a low-temperature air penetration drying method, thus maintaining the fabric's characteristics while drying.
[0035] It should be noted that multiple conveying rollers 2, in groups of three, are respectively rotatably installed at the upper and lower ends inside the box 1, so that the fabric can move at a uniform speed in an S-shape on both sides of the sealing plate inside the box 1.
[0036] The working principle of the above embodiments is as follows:
[0037] The operator opens the tempered glass side cover 18 by pulling the handle 19. The wet fabric is fed in through the inlet 8, passes around the first guide roller 6, and wraps around the outer wall of multiple conveyor rollers 2. The rotation of the upper and lower sets of conveyor rollers 2 forms an S-shaped conveying path, moving at a uniform speed on both sides of the air outlet plate 4. The side cover 18 is closed, and the chamber 1 forms a sealed drying environment. The fan 15 is started, and outside air is drawn into the heating chamber 12 through the air inlet pipe 14. The dustproof net 16 intercepts dust, fibers, and other impurities in the air to ensure clean airflow. The heating wire 13 is energized and heats up, and the air inside the heating chamber 12 is rapidly heated to the set temperature. At a constant temperature, hot air is delivered to the air outlet plate 4 through four connecting square tubes 17. The air outlet slots 5 on both sides of the air outlet plate 4 blow out low-temperature flexible airflow evenly. The airflow direction is parallel to the fabric surface. Driven by the conveying roller 2, the fabric moves in an S-shaped trajectory within the box 1, with the front and back sides alternately approaching the air outlet plate 4, continuously contacting the uniform hot airflow. During the conveying process, the fibers on the fabric surface tremble slightly under the action of the airflow, but the overall arrangement is neat, without any lying down or tangling. After drying, the fabric is guided by the second guide roller 7, passes through the discharge roller 11, and is discharged from the discharge port 9, thus completing the drying process.
[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0039] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A circulating drying device for lightweight knitted fleece fabric, comprising a housing (1), characterized in that: The box (1) is rotatably connected to a plurality of conveying rollers (2) arranged in a rectangular array. The box (1) is fixedly connected to a plurality of fixed blocks (3) arranged in a rectangular array on one side. The fixed blocks (3) are fixedly connected to an air outlet plate (4) at the end away from the box (1) in pairs. The air outlet plate (4) has a plurality of air outlet slots (5) arranged in a rectangular array on both sides. The box (1) is rotatably connected to a first guide roller (6). The box (1) is rotatably connected to a second guide roller (7) at one end of the air outlet slot (5).
2. The lightweight knitted fleece fabric circulating drying device according to claim 1, characterized in that: The box (1) has an inlet (8) on one side and an outlet (9) on the side away from the inlet (8).
3. The lightweight knitted fleece fabric circulating drying device according to claim 1, characterized in that: Two feed rollers (10) arranged in a mirror image are fixedly connected to one side of the box (1), and two discharge rollers (11) arranged in a mirror image are fixedly connected to the side of the box (1) away from the feed rollers (10).
4. The lightweight knitted fleece fabric circulating drying device according to claim 1, characterized in that: A heating box (12) is fixedly connected to the upper end of the box (1). A plurality of heating wires (13) arranged in a rectangular array are fixedly connected inside the upper end of the heating box (12). Two air inlet pipes (14) arranged in a mirror distribution are fixedly connected to the upper end of the heating box (12). A fan (15) is fixedly connected inside the two air inlet pipes (14).
5. The lightweight knitted fleece fabric circulating drying device according to claim 4, characterized in that: Dustproof nets (16) are fixedly connected to the upper ends of the two air inlet pipes (14).
6. The lightweight knitted fleece fabric circulating drying device according to claim 4, characterized in that: Four connecting square tubes (17) arranged in a straight line are fixedly connected to one side of the heating box (12). The end of the connecting square tube (17) away from the heating box (12) passes through the box body (1) and is fixedly connected to the air outlet plate (4) respectively.
7. The lightweight knitted fleece fabric circulating drying device according to claim 1, characterized in that: The box body (1) has a side cover (18) connected to one side by a hinge, and a handle (19) is fixedly connected to the bottom of one side of the side cover (18).
8. The lightweight knitted fleece fabric circulating drying device according to claim 1, characterized in that: A controller (20) is fixedly connected to one side of the surface of the housing (1).