Apparatus for heat setting elastic fabric

Abstract

The utility model discloses a kind of heat setting devices for elastic fabric, rack is sequentially provided with cloth feeding mechanism, preheating box, heat setting box, cooling box and cloth discharging mechanism;Several heating pipes are provided in heat setting box, and the top of heat setting box is provided with fan;The air outlet of fan is connected with air pipe;Air pipe is provided with multiple nozzles;Nozzle is towards fabric;The bottom of heat setting box is provided with heat collection cavity;Heat collection cavity is provided with heat pipe, and heat pipe is connected with external heat recovery device;Preheating box is provided with several preheating pipelines;Preheating pipeline is connected with the heat recovery device of the utility model heating evenly, tension is stable, energy utilization is high, and the setting quality and production efficiency of elastic fabric are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of textile processing equipment, specifically a heat setting device for elastic fabrics. Background Technology

[0002] Heat setting is a crucial step in the production of elastic fabrics, aiming to ensure stable dimensions and a desirable appearance. However, existing heat setting equipment for elastic fabrics suffers from several problems. For instance, traditional equipment often exhibits poor heating uniformity, leading to inconsistent setting results across different parts of the fabric and impacting product quality. Furthermore, existing heat setting equipment suffers from low heat utilization efficiency; a significant amount of heat generated during the heat setting process is not effectively recovered and utilized, resulting in energy waste. Utility Model Content

[0003] To address the aforementioned problems, this invention provides a heat-setting device for elastic fabrics, which improves heating uniformity and heat utilization.

[0004] The technical solution of this utility model is as follows: a heat setting device for elastic fabrics, comprising a frame, on which a fabric feeding mechanism, a preheating box, a heat setting box, a cooling box, and a fabric discharging mechanism are sequentially arranged; an air inlet is provided at the top of the heat setting box, the air inlet is connected to an air inlet duct, a plurality of heating pipes are arranged in the air inlet duct, and a fan is connected to the air outlet of the air inlet duct; an air duct is connected to the air outlet of the fan; a plurality of nozzles are arranged on the air duct, the nozzles facing the fabric; a heat collection chamber is provided at the bottom of each heat setting box; a heat conducting pipe is arranged in the heat collection chamber, and the heat conducting pipe is connected to an external heat recovery device; a plurality of preheating pipes are arranged in the preheating box, and the preheating pipes are connected to the heat recovery device.

[0005] Furthermore, the heating tube is an infrared heating tube, and the infrared heating tubes are evenly distributed in the preheating box and the heat setting box. Furthermore, the fan is a variable frequency fan, which is connected to a control system. The control system adjusts the fan speed according to the running speed of the fabric and the feedback signal from the temperature sensor.

[0006] Furthermore, the heat recovery device includes a heat exchanger, one side of which is connected to a heat-conducting pipe and the other side is connected to the air inlet of the preheating box. The heat exchanger is used to transfer the heat in the heat collection chamber to the air entering the preheating box.

[0007] Furthermore, the cooling box includes a box body and a serpentine cooling pipe disposed inside the box body; one end of the cooling pipe is connected to a cooling medium inlet, and the other end is connected to a cooling medium outlet.

[0008] Furthermore, the fabric feeding mechanism and the fabric output mechanism have the same structure, including a pair of conveying rollers.

[0009] The beneficial effects of this utility model are as follows: This invention utilizes a heat recovery device to recover and reuse the heat from the heat collection chamber at the bottom of the heat setting box in the preheating box, effectively improving heat utilization efficiency, reducing energy consumption, and meeting the requirements of energy-saving and environmentally friendly production.

[0010] This invention employs a heating method that combines infrared heating tubes and a fan. The infrared heating tubes provide fast and efficient heating, while the fan blows hot air onto the fabric through ducts and nozzles, achieving rapid and uniform heating of the fabric and significantly improving the heat setting effect. This invention combines a variable frequency fan with a control system, which can flexibly adjust the fan speed according to the running speed of the fabric and the feedback signal from the temperature sensor, so that the heat setting process can adapt to different production needs and ensure the stability of heat setting quality.

[0011] The feeding and discharging mechanisms of this invention use conveying rollers with the same structure, which is simple in structure and can stably convey fabric, ensuring the smooth operation of the entire heat setting device. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the heat setting box. Detailed Implementation

[0015] The technical solution of this utility model will be clearly and completely described below through specific embodiments.

[0016] refer to Figures 1-2 This utility model discloses a heat-setting device for elastic fabrics, comprising a frame 1, on which a fabric feeding mechanism 2, a preheating box 3, a heat-setting box 4, a cooling box 5, and a fabric discharging mechanism 6 are sequentially arranged. The preheating box 3, the heat-setting box 4, and the cooling box 5 are each provided with an inlet and an outlet on both sides.

[0017] The heat setting chamber 4 has an air inlet at the top, which connects to an air duct. Several heating tubes 7 are installed inside the air duct. The air outlet of the air duct connects to a fan 8, and the outlet of the fan 8 is connected to an air duct 9. The fan 8 is a variable frequency fan, connected to a control system. The control system adjusts the fan speed based on the fabric's running speed and feedback signals from temperature sensors. By using a variable frequency fan and integrating it with the control system, the fan speed can be flexibly adjusted according to actual production conditions, ensuring good hot air circulation at different fabric running speeds, resulting in uniform fabric heating and improved heat setting effect.

[0018] The air outlet of the fan 8 is connected to the air duct 9, and multiple nozzles 10 are installed on the air duct 9. The nozzles 10 face the fabric. The fan 8 blows hot air through the air duct 9 and the nozzles 10 onto the fabric to heat the fabric with hot air and further improve the heating uniformity. Each heat setting box 4 has a heat collection chamber 11 at its bottom, and a heat conduction pipe 12 is installed inside the heat collection chamber 11. The heat conduction pipe 12 is connected to an external heat recovery device 13.

[0019] The heat recovery device 13 includes a heat exchanger, one side of which is connected to the heat-conducting pipe 12, and the other side is connected to the air inlet of the preheating box 3. The heat exchanger is used to transfer the heat in the heat collection chamber 11 to the air entering the preheating box 3. Through this heat recovery structure, the heat in the heat collection chamber at the bottom of the heat setting box 4 can be effectively recovered and utilized for preheating the fabric in the preheating box 3, thereby improving heat utilization efficiency and reducing energy consumption.

[0020] The preheating chamber 3 is equipped with several preheating pipes, which are connected to the heat recovery device 13. Before entering the heat setting chamber 4, the fabric is preheated in the preheating chamber 3 through the preheating pipes. The preheating pipes use the heat transferred from the heat recovery device to preheat the fabric, which not only saves energy but also ensures that the fabric reaches a suitable initial temperature when entering the heat setting chamber 4, thereby improving the efficiency and quality of heat setting.

[0021] Heating tube 7 is an infrared heating tube, which is evenly distributed in the preheating box 3 and the heat setting box 4. The infrared heating tube has the characteristics of fast heating speed and high thermal efficiency. Its even distribution in the preheating box 3 and the heat setting box 4 can quickly and evenly heat the fabric, further improving the heat setting effect.

[0022] The cooling chamber 5 includes a chamber body 51 and a serpentine cooling pipe 52 disposed within the chamber body. The cooling pipe is arranged in a serpentine or spiral shape to increase the contact area with the fabric and improve cooling efficiency. A cooling medium, which can be cooling water or cooling gas, flows within the cooling pipe. One end of the cooling pipe is connected to a cooling medium inlet, and the other end is connected to a cooling medium outlet. The cooling medium inlet and outlet are respectively connected to an external cooling medium circulation system through pipes, allowing the cooling medium to circulate within the cooling pipe and continuously remove heat from the fabric.

[0023] In addition, an exhaust fan is installed at the top of the enclosure, with its air inlet connected to the interior of the enclosure. When the exhaust fan is working, it can draw out the hot air generated inside the enclosure due to the cooling of the fabric, accelerating air circulation and further improving the cooling effect. At the same time, ventilation holes are provided at the bottom of the enclosure, allowing cool external air to enter the enclosure and create air convection.

[0024] The fabric feeding mechanism 2 and the fabric output mechanism 6 have the same structure, including a pair of conveyor rollers. These conveyor rollers ensure smooth fabric transport, allowing the fabric to pass through each processing step smoothly.

[0025] In actual production, the elastic fabric enters the preheating box 3 through a pair of conveying rollers of the fabric feeding mechanism 2. Inside the preheating box 3, the fabric moves along the preheating pipe, and the heat recovery device 13 transfers the heat recovered in the heat collection chamber 11 of the heat setting box 4 to the air entering the preheating box 3. The air flows in the preheating pipe to preheat the fabric and bring it to a suitable initial temperature. The preheated fabric enters the heat-setting chamber 4 via conveyor rollers. Infrared heating tubes 7, evenly distributed within the heat-setting chamber 4, heat the fabric. Simultaneously, a fan 8 blows hot air onto the fabric through ducts 9 and nozzles 10, achieving hot air circulation heating. The control system adjusts the speed of the variable frequency fan 8 based on the fabric's running speed and the temperature signal from the temperature sensor to ensure uniform heating of the fabric within the heat-setting chamber 4, achieving the desired heat-setting effect. After heat setting, the fabric enters the cooling box 5 for cooling, and finally exits through the conveying rollers of the fabric output mechanism 6, completing the entire heat setting process. During this process, the heat in the heat collection cavity 11 at the bottom of the heat setting box 4 is transferred to the heat exchanger of the heat recovery device 13 through the heat conduction pipe 12. The heat exchanger then transfers the heat to the air entering the preheating box 3, realizing the recycling of heat.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Those skilled in the art can make various modifications or equivalent substitutions to the present utility model within its substance and protection scope, and such modifications or equivalent substitutions should also be considered to fall within the protection scope of the present utility model's technical solution.

Claims

1. A heat-setting apparatus for elastic fabrics, comprising a frame (1), characterized in that: The frame (1) is sequentially provided with a fabric feeding mechanism (2), a preheating box (3), a heat setting box (4), a cooling box (5), and a fabric discharging mechanism (6); the heat setting box (4) is provided with an air inlet at the top, which is connected to an air inlet duct. Several heating pipes (7) are provided in the air inlet duct, and the air outlet of the air inlet duct is connected to a fan (8); the air outlet of the fan (8) is connected to an air duct (9); multiple nozzles (10) are provided on the air duct (9); the nozzles (10) face the fabric; the bottom of the heat setting box (4) is provided with a heat collection chamber (11); a heat conduction pipe (12) is provided in the heat collection chamber (11), and the heat conduction pipe (12) is connected to an external heat recovery device (13); several preheating pipes are provided in the preheating box (3); the preheating pipes are connected to the heat recovery device (13).

2. The heat setting device for elastic fabrics according to claim 1, characterized in that: The heating tube (7) is an infrared heating tube, which is evenly distributed in the preheating box (3) and the heat setting box (4).

3. The heat setting device for elastic fabrics according to claim 1, characterized in that: The fan (8) is a variable frequency fan, which is connected to the control system. The control system adjusts the speed of the fan (8) according to the running speed of the fabric and the feedback signal from the temperature sensor.

4. The heat setting device for elastic fabrics according to claim 1, characterized in that: The heat recovery device (13) includes a heat exchanger, one side of which is connected to the heat-conducting pipe (12) and the other side is connected to the air inlet of the preheating box (3). The heat exchanger is used to transfer the heat in the heat collection chamber (11) to the preheating pipe entering the preheating box (3).

5. The heat setting device for elastic fabrics according to claim 1, characterized in that: The cooling box (5) includes a box body (51) and a serpentine cooling pipe (52) disposed inside the box body; one end of the cooling pipe (52) is connected to a cooling medium inlet and the other end is connected to a cooling medium outlet.

6. The heat setting device for elastic fabrics according to claim 1, characterized in that: The fabric feeding mechanism (2) and the fabric output mechanism (6) have the same structure, including a pair of conveying rollers.

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