A waterproof and breathable polyester cotton fabric production equipment

Abstract

This application relates to the technical field of textile fabric production equipment, and in particular to a waterproof and breathable polyester-cotton fabric production equipment, which includes a frame, on which a drying chamber and a winding machine are mounted. The drying chamber includes a preheating chamber, a main drying chamber, and a cooling chamber. The preheating chamber is connected to the main drying chamber, and the main drying chamber is connected to the cooling chamber. The main drying chamber is equipped with a heating mechanism and a heat recovery mechanism. The preheating chamber uses the waste heat from the main drying chamber to preheat the polyester-cotton fabric through the heat recovery mechanism. A beating mechanism is also provided in the preheating chamber. A first conveyor roller is mounted on the frame, a second conveyor roller is provided in the preheating chamber, and a third conveyor roller is provided in the cooling chamber. This application can preheat the fabric using the waste heat from the main drying chamber in the preheating chamber, and in conjunction with the beating mechanism, it can achieve energy reuse through the heat recovery mechanism, thereby reducing energy consumption and costs.

Description

Technical Field

[0001] This application relates to the technical field of textile fabric production equipment, and in particular to a waterproof and breathable polyester-cotton fabric production equipment. Background Technology

[0002] In the production process of waterproof and breathable polyester-cotton fabrics, after the fabric is treated with chemical agents such as waterproofing agents and breathable finishing agents, it needs to be dried to remove moisture from the fabric, allowing the waterproof and breathable coating or finishing agent to firmly adhere to the fabric fibers and form a stable functional film. Polyester-cotton fabrics treated with waterproof and breathable agents have a high moisture content. When directly placed in a high-temperature drying environment, the moisture evaporates quickly, easily causing problems such as cracking and decreased adhesion of the coating or finishing agent on the fabric surface due to rapid moisture loss. At the same time, the high-temperature exhaust gas generated during the drying process is usually directly emitted, and the large amount of heat contained within it is not utilized, resulting in energy waste and increased production energy consumption and costs.

[0003] A search revealed that Chinese Patent Publication No. CN222783876U discloses a polyester-cotton yarn drying device, which includes a water-pressing and winding mechanism. A drying mechanism is fixedly connected to the top of the water-pressing and winding mechanism. The water-pressing and winding mechanism includes a base, and two first supports are fixedly connected to the top of the base.

[0004] Regarding the aforementioned related technologies, the inventors discovered the following defects: In the prior art, when waterproof and breathable treated polyester-cotton fabrics are directly placed in a high-temperature drying environment, the moisture evaporates rapidly, causing the surface coating or finishing agent to crack and lose adhesion due to the rapid loss of moisture. This application aims to solve the technical problems in the prior art where, when waterproof and breathable treated polyester-cotton fabrics are directly placed in a high-temperature drying environment, the rapid moisture evaporation leads to cracking of the surface coating or finishing agent, reduced adhesion, and energy waste due to the unutilized heat from the high-temperature exhaust gas. This is achieved by setting up a drying chamber including a preheating chamber, a main drying chamber, and a cooling chamber. A heat recovery mechanism is used to preheat the preheating chamber with the waste heat from the main drying chamber. Simultaneously, a beating mechanism is installed in the preheating chamber. This solves the aforementioned problems and achieves the technical effects of reducing fabric coating issues, improving fabric quality, recovering waste heat, and reducing energy consumption and costs. Utility Model Content

[0005] In order to improve the drying efficiency of polyester-cotton fabrics and reduce energy waste, this application provides a production equipment for waterproof and breathable polyester-cotton fabrics.

[0006] This application provides a waterproof and breathable polyester-cotton fabric production equipment, employing the following technical solution: It includes a frame, on which a drying chamber and a winding machine are mounted. The drying chamber includes a preheating chamber, a main drying chamber, and a cooling chamber. The preheating chamber is connected to the main drying chamber, and the main drying chamber is connected to the cooling chamber. The main drying chamber is equipped with a heating mechanism and a heat recovery mechanism. The preheating chamber utilizes the waste heat from the main drying chamber to preheat the polyester-cotton fabric. A beating mechanism is also provided in the preheating chamber. A first conveyor roller is mounted on the frame, a second conveyor roller is mounted in the preheating chamber, and a third conveyor roller is mounted in the cooling chamber. By utilizing the waste heat generated during drying in the main drying chamber to preheat the polyester-cotton fabric in the preheating chamber, energy waste is reduced.

[0007] Optionally, the heating mechanism includes multiple heating wires disposed in the main drying chamber, with the multiple heating wires distributed on the upper and lower sides of the polyester-cotton fabric.

[0008] Optionally, a first fan is provided on the drying chamber, the output end of the first fan is connected to a first air hood, and the output end of the first air hood is connected to the main drying chamber.

[0009] Optionally, the heat recovery mechanism includes a heat exchange box and a second fan installed on the drying chamber; the heat exchange box is a box structure, and a third fan and an air outlet are provided on the side wall of the heat exchange box, and heat exchange tubes are installed inside the heat exchange box.

[0010] Optionally, the air inlet of the second fan is connected to the main drying chamber, and the air outlet of the second fan is connected to the air inlet of the heat exchange tube.

[0011] Optionally, the heat exchange box has a second vent connected to its outlet, which is located inside the preheating chamber.

[0012] Optionally, the tapping mechanism includes a first rotating rod rotatably connected to the wall of the preheating chamber, and the periphery of the first rotating rod is provided with multiple nylon ropes; each nylon rope is provided with a rubber ball.

[0013] Optionally, a first motor is fixedly installed on the drying chamber, and the output shaft of the first motor is coaxially and fixedly connected to the first rotating rod.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] 1. This utility model uses a preheating chamber to preheat the polyester-cotton fabric by utilizing the residual heat of the main drying chamber. This prevents the fabric from directly entering a high-temperature environment, which would cause rapid evaporation of moisture. This reduces problems such as cracking and decreased adhesion of the fabric surface coating or finishing agent due to rapid moisture loss. At the same time, the beating mechanism in the preheating chamber beats the fabric with rubber balls, which can remove some moisture. Because the rubber balls are soft, they can avoid damaging the fabric coating, further ensuring the quality of the fabric.

[0016] 2. This utility model utilizes a heat recovery mechanism installed in the main drying chamber to recover heat from the high-temperature exhaust gas discharged from the main drying chamber. Heat exchange is conducted between the exhaust gas and external air through heat exchange tubes in the heat exchange box. The heated air is then sent to the preheating chamber to preheat the fabric, achieving effective utilization of waste heat, reducing energy waste, and consequently lowering energy consumption and costs during production. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0018] Figure 2 This is a structural schematic diagram from another perspective of the overall embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the internal structure in an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the slapping mechanism in the embodiments of this application;

[0021] Figure 5 This is a schematic diagram of the heat exchange tube structure in an embodiment of this application.

[0022] Reference numerals: 1. Frame; 2. Drying chamber; 21. Preheating chamber; 22. Main drying chamber; 23. Cooling chamber; 3. Winding machine; 4. First conveyor roller; 5. Second conveyor roller; 6. Third conveyor roller; 7. Beating mechanism; 71. First rotating rod; 72. Nylon rope; 73. Rubber ball; 74. First motor; 8. Heating mechanism; 81. Heating wire; 9. Heat recovery mechanism; 91. Heat exchange box; 911. Third fan; 913. Heat exchange tube; 914. Second exhaust hood; 92. Second fan; 10. First fan; 101. First exhaust hood. Detailed Implementation

[0023] The following is in conjunction with the appendix Figures 1-5 This application will be further described in detail below. The technical solutions in the embodiments of this application will be clearly described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0024] This application discloses a production equipment for waterproof and breathable polyester-cotton fabric. For example... Figure 1As shown, the system includes a frame 1, on which a drying chamber 2 and a winding machine 3 are sequentially arranged along the conveying direction of the polyester-cotton fabric. The drying chamber 2 is an integrated sealed structure, and its interior is divided into a preheating chamber 21, a main drying chamber 22, and a cooling chamber 23 connected sequentially along the fabric conveying path. These three chambers together form the fabric drying channel. A first conveying roller 4 is provided at the feed end of the frame 1 near the preheating chamber 21 to introduce the polyester-cotton fabric to be processed (which has a high moisture content after being treated with waterproofing and breathable finishing agents) into the equipment. Second conveying rollers 5 are spaced apart along the fabric conveying direction in the preheating chamber 21 to support and guide the fabric to be conveyed smoothly in the preheating chamber 21. A third conveying roller 6 is correspondingly provided in the cooling chamber 23 to guide the dried fabric to be conveyed to the winding machine 3. The cooled fabric is wound up by the winding machine 3. The winding machine 3 can adopt an electric winding structure in the prior art, the specific structure of which will not be described in detail here.

[0025] Please see Figures 1-3 The main function of the preheating chamber 21 is to use the residual heat of the main drying chamber 22 to preheat the incoming fabric, so as to prevent the fabric from directly entering the high temperature environment and causing the moisture to evaporate rapidly. To improve the preheating effect, a beating mechanism 7 is installed inside the preheating chamber 21. The beating mechanism 7 includes a first rotating rod 71 rotatably connected to the side walls of the preheating chamber 21. Multiple nylon ropes 72 are evenly distributed axially along the periphery of the first rotating rod 71 (the number can be adjusted according to the fabric width). A rubber ball 73 is fixedly connected to the end of each nylon rope 72 away from the first rotating rod 71. A first motor 74 is fixed to the outer wall of the drying chamber 2 by bolts. The output shaft of the first motor 74 passes through the wall of the preheating chamber 21 and is coaxially fixedly connected to one end of the first rotating rod 71. When the first motor 74 is started, its output shaft drives the first rotating rod 71 to rotate. The nylon ropes 72 rotate synchronously with the rotating rod, and the rubber ball 73 beats the surface of the polyester-cotton fabric under the action of centrifugal force. The rubber ball 73 is soft and can avoid damaging the fabric coating. At the same time, the beating makes some of the moisture in the fabric come out.

[0026] Please see Figure 3The main drying chamber 22 is the core area for fabric drying. It is equipped with a heating mechanism 8 and a heat recovery mechanism 9 for recovering waste heat. The heating mechanism 8 includes multiple sets of heating wires 81 spaced apart along the length of the main drying chamber 22. Each set of heating wires 81 includes two parallel wires arranged vertically, located above and below the polyester-cotton fabric, respectively, to simultaneously heat the upper and lower surfaces of the fabric and improve drying efficiency. To accelerate the circulation of hot air in the main drying chamber 22, a first fan 10 is fixed to the top of the drying chamber 2. The output end of the first fan 10 is connected to a first air hood 101 through an air duct. The air outlet of the first air hood 101 faces the interior of the main drying chamber 22 and is directly opposite the fabric conveying path. When the first fan 10 is working, it can send external air (or filtered clean air) into the main drying chamber 22, which mixes with the heat generated by the heating wires 81 to form a hot airflow, which quickly removes the moisture evaporated from the fabric and ensures that the coating or finishing agent adheres firmly.

[0027] Please see Figures 1-3 The heat recovery mechanism 9 is used to recover the heat from the high-temperature exhaust gas discharged from the main drying chamber 22 and use it for preheating the preheating chamber 21 to achieve energy saving. The mechanism includes a heat exchange box 91 and a second fan 92 fixed on the outside of the drying chamber 2. The heat exchange box 91 is a rectangular box structure with a third fan 911 embedded in one side wall and an air outlet on the opposite side wall. A serpentine heat exchange tube 913 is horizontally arranged inside the heat exchange box 91. The heat exchange tube 913 is made of copper (good thermal conductivity), and its two ends pass through the side wall of the heat exchange box 91 and extend to the outside. The air inlet of the second fan 92 is connected to the top of the main drying chamber 22 through a duct (to extract the high-temperature exhaust gas in the main drying chamber 22), and the air outlet is sealed to the air inlet of the heat exchange tube 913 through a duct. The air outlet of the heat exchange tube 913 is directly connected to the outside (to discharge the cooled exhaust gas).

[0028] Please see Figure 3 The outlet of the heat exchange box 91 is connected to a second air hood 914 via a duct. The outlet of the second air hood 914 is located inside the preheating chamber 21 and faces the fabric conveying path. When the third fan 911 is started, it can draw outside air into the heat exchange box 91. When the air flows through the heat exchange tube 913, it exchanges heat with the high-temperature exhaust gas inside the tube and is heated. The heated air is sent into the preheating chamber 21 through the outlet and the second air hood 914 to provide a heat source for preheating the fabric.

[0029] Please see Figure 3 The cooling chamber 23 is connected to the main drying chamber 22. It does not contain heating elements; the fabric is cooled primarily through natural heat dissipation or external air circulation (ventilation holes can be added to the side wall of the cooling chamber 23 as needed). After drying in the main drying chamber 22, the fabric is at a high temperature. Direct winding can easily cause the coating to soften and stick. Cooling within the cooling chamber 23 by the third conveyor roller 6 reduces the fabric temperature to a suitable range for winding.

[0030] The implementation principle of a waterproof and breathable polyester-cotton fabric production equipment according to an embodiment of this application is as follows:

[0031] The polyester-cotton fabric to be processed is guided into the preheating chamber 21 by the first conveying roller 4. Under the transmission of the second conveying roller 5, it passes through the beating mechanism 7: the first motor 74 drives the first rotating rod 71 to rotate, and the rubber ball 73 beats the fabric to make it fluffy. At the same time, the hot air (from the heat recovery mechanism 9) sent in by the second air hood 914 preheats it and reduces the temperature difference in the subsequent high-temperature drying.

[0032] The preheated fabric enters the main drying chamber 22, where the heating wires 81 on the upper and lower sides generate heat. The first fan 10 sends airflow through the first air outlet 101. The hot airflow works with the heating wires 81 to quickly evaporate the moisture in the fabric, so that the waterproof and breathable coating adheres firmly.

[0033] The high-temperature exhaust gas in the main drying chamber 22 is drawn into the heat exchange tube 913 by the second fan 92, and after exchanging heat with the air in the heat exchange box 91, it is discharged. The hot air after heat exchange enters the preheating chamber 21 to realize waste heat recovery. The dried fabric enters the cooling chamber 23, and is naturally cooled during the conveying process by the third conveying roller 6. Finally, it is wound up by the winding machine 3.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A waterproof and breathable polyester-cotton fabric production equipment, comprising a frame, characterized in that: The frame is equipped with a drying chamber and a winding machine. The drying chamber includes a preheating chamber, a main drying chamber, and a cooling chamber. The preheating chamber is connected to the main drying chamber, and the main drying chamber is connected to the cooling chamber. The main drying chamber is equipped with a heating mechanism and a heat recovery mechanism. The preheating chamber uses the residual heat from the main drying chamber to preheat the polyester-cotton fabric through the heat recovery mechanism. The preheating chamber is equipped with a beating mechanism. The frame is equipped with a first conveyor roller, the preheating chamber is equipped with a second conveyor roller, and the cooling chamber is equipped with a third conveyor roller.

2. The waterproof and breathable polyester-cotton fabric production equipment according to claim 1, characterized in that: The heating mechanism includes multiple heating wires installed in the main drying chamber, with the heating wires distributed on the upper and lower sides of the polyester-cotton fabric.

3. The waterproof and breathable polyester-cotton fabric production equipment according to claim 1, characterized in that: The drying chamber is equipped with a first fan, the output end of which is connected to a first air hood, and the output end of the first air hood is connected to the main drying chamber.

4. The waterproof and breathable polyester-cotton fabric production equipment according to claim 1, characterized in that: The heat recovery mechanism includes a heat exchange box and a second fan installed on the drying chamber; the heat exchange box is a box structure, and a third fan and an air outlet are provided on the side wall of the heat exchange box, and heat exchange tubes are installed inside the heat exchange box.

5. The waterproof and breathable polyester-cotton fabric production equipment according to claim 4, characterized in that: The air inlet of the second fan is connected to the main drying chamber, and the air outlet of the second fan is connected to the air inlet of the heat exchange tube.

6. The waterproof and breathable polyester-cotton fabric production equipment according to claim 4, characterized in that: The heat exchanger's outlet is connected to a second vent hood, which is located inside the preheating chamber.

7. The waterproof and breathable polyester-cotton fabric production equipment according to claim 1, characterized in that: The patting mechanism includes a first rotating rod rotatably connected to the wall of the preheating chamber, and multiple nylon ropes are provided on the periphery of the first rotating rod; each nylon rope is provided with a rubber ball.

8. The waterproof and breathable polyester-cotton fabric production equipment according to claim 7, characterized in that: A first motor is fixedly installed on the drying chamber, and the output shaft of the first motor is coaxially and fixedly connected to the first rotating rod.

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