A drying oven for drying textile fabric

Abstract

The utility model relates to a textile machinery technical field, and a drying oven for textile fabric drying includes preheating cavity, main drying cavity and setting cavity fixed connection through rectangular flange and sealing rubber strip in proper order, and each cavity is independently equipped with silica gel cloth guide roller, tension compression roller and Pt100 temperature measurement component, forms three -section type continuous processing structure, and the preheating cavity completes fabric preheating through carbon fiber infrared heating tube cooperation parabolic reflector, and the main drying cavity adopts U type stainless steel heating tube and adjustable spoiler to realize hot air current even circulation, and through the real -time correction of the pneumatic deviation rectifying roller of the bearing support of the central bearing and laser edge sensor, fabric offset is corrected, the utility model discloses through gradient heating, accurate tension control and intelligent deviation rectification, improves fabric drying setting quality and stability, has the characteristics of high -efficient energy -conserving, convenient operation and strong compatibility, is applicable to the processing demand of various textile fabric.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, and in particular to a drying oven for drying textile fabrics. Background Technology

[0002] In the textile fabric processing process, drying is a key step to ensure the quality of the fabric and the stability of subsequent processes. After the fabric has been pretreated by printing, dyeing, coating and other processes, a certain amount of moisture or solvent will remain. The moisture needs to be evaporated by the heat energy of the drying oven to provide a qualified fabric condition for subsequent processes such as setting, cutting and packaging.

[0003] Existing drying ovens mostly adopt single-cavity or double-cavity structures, with traditional electric heating tubes as the primary heating method. They lack detailed temperature range design. Natural fibers such as wool have a low critical heat resistance temperature of 80-90℃, but existing equipment struggles to maintain stable and precise preheating below 80℃, easily leading to fiber embrittlement due to localized overheating. Synthetic fibers such as polyester require high-temperature drying and setting at 120-180℃, but single-cavity heating is prone to temperature fluctuations, either prolonging drying time due to insufficient temperature or causing melting damage to the fabric surface due to localized overheating. Furthermore, most equipment lacks an independent temperature control unit, failing to achieve a three-stage gradient heating process of "preheating-drying-setting," making it difficult to match the differentiated temperature requirements of different fiber fabrics. Summary of the Invention

[0004] The present invention aims to solve the technical problems existing in the prior art and provide an oven for drying textile fabrics.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: an oven for drying textile fabrics, comprising a preheating chamber, a main drying chamber, and a shaping chamber connected sequentially by a rectangular flange and a sealing strip, each chamber being independently equipped with a heating component and a temperature sensor; the preheating chamber is equipped with a carbon fiber infrared heating tube and a parabolic reflector, the main drying chamber is equipped with a U-shaped stainless steel heating tube and an adjustable baffle, and the shaping chamber is connected to a bidirectional centrifugal fan and a honeycomb nozzle assembly; each chamber is equipped with a silicone guide roller, a tension roller, and a Pt100 temperature measuring component, the main drying chamber is also equipped with a pneumatic correction roller and a laser edge sensor, and the shaping chamber is equipped with a microwave moisture content sensor.

[0006] Preferably, the preheating chamber, the main drying chamber, and the shaping chamber are arranged in a certain length ratio, and the chambers are separated by heat insulation cotton. The sealing strip of the rectangular flange ensures that the temperature interference between sections is kept at a low level.

[0007] Preferably, the carbon fiber infrared heating tube of the preheating cavity, in conjunction with a parabolic reflector, focuses infrared radiation onto the fabric surface, controls the heating rate, and adapts to the low-temperature preheating requirements of natural fibers.

[0008] Preferably, the U-shaped stainless steel heating tubes of the main drying chamber are arranged in an alternating pattern, and the adjustable baffle can rotate around the axis at a certain angle. The airflow direction is adjusted by the PLC control box to keep the temperature distribution in the chamber uniform.

[0009] Preferably, the pneumatic correction roller is fixed by a self-aligning bearing seat, and the laser edge sensor has high detection accuracy. When the fabric deviation exceeds a certain range, the servo cylinder drives the roller to make lateral fine adjustments, and the response is rapid.

[0010] Preferably, the honeycomb nozzle assembly of the shaping cavity maintains a stable air velocity at its outlet, the telescopic probe of the microwave moisture content sensor maintains an appropriate distance from the fabric, and the detection data is fed back to the PLC in real time to dynamically adjust the speed of the bidirectional centrifugal fan.

[0011] Preferably, the surface of the silicone guide roller has an appropriate hardness, and the tension roller is connected to the shaft head through a bearing positioning shoulder, and the tension adjustment range can be adapted to different fabrics from thin silk to heavy canvas.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This drying oven for textile fabrics achieves segmented temperature control through three independent chambers and differentiated heating components, which not only meets the low-temperature protection requirements of natural fibers, but also ensures high-temperature and efficient drying of synthetic fibers, thus solving the problem of poor temperature adaptability.

[0014] 2. This drying oven for textile fabrics integrates a Pt100 temperature measuring component and a microwave moisture content sensor to construct a closed-loop control of "temperature-moisture content". Combined with an adjustable baffle and honeycomb nozzles, it improves the uniformity of fabric drying and reduces the defect rate caused by local overheating. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of an oven for drying textile fabrics according to the present invention.

[0016] Figure 2 This is a top view schematic diagram of an oven for drying textile fabrics according to the present invention;

[0017] Figure 3 This utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 4 This is a schematic diagram of the right side of an oven for drying textile fabrics according to the present invention.

[0019] Figure 5 This is a schematic diagram of the left side of a novel drying oven for drying textile fabrics.

[0020] Figure 6This is a schematic cross-sectional view of a novel drying oven for drying textile fabrics.

[0021] Reference numerals: 1. Preheating chamber; 2. Main drying chamber; 3. Shaping chamber; 4. Sealing strip; 5. Rectangular flange; 6. Door handle; 7. Door; 8. Pt100 temperature measuring assembly; 9. Parabolic reflector; 10. Silicone guide roller; 11. Self-aligning bearing housing; 12. Tension roller; 13. Bearing positioning shoulder; 14. Ear seat; 15. Shaft head; 16. U-shaped stainless steel heating tube; 17. Adjustable spoiler; 18. High-temperature resistant cable assembly; 19. Pneumatic alignment roller; 20. Self-aligning bearing housing; 21. L-shaped support. 21. Frame; 22. Laser edge sensor; 23. Through hole; 24. Honeycomb nozzle assembly; 25. Microwave moisture content sensor mounting base; 26. Analog microwave transmitter / receiver unit; 27. Telescopic probe; 28. Bidirectional centrifugal fan; 29. ​​Air inlet; 30. Air outlet; 31. Exhaust gas exhaust fan box; 32. Motor; 33. Air supply duct; 34. Funnel-type gas collection hood; 35. Three-layer drawer-type activated carbon box; 36. Flange; 37. Hub; 38. Blade; 39. PLC control box; 40. Carbon fiber infrared heating tube. Detailed Implementation

[0022] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0023] Example: An oven for drying textile fabrics, such as Figures 1-6 As shown:

[0024] An oven for drying textile fabrics includes a preheating chamber 1. A rectangular flange 5 is fixedly connected to the bottom of the preheating chamber 1. A hole is opened on the upper surface of the rectangular flange 5, and a sealing strip 4 is fitted onto the hole. The preheating chamber 1 is fixedly connected to a main drying chamber 2 through the rectangular flange 5 and the sealing strip 4. Similarly, the main drying chamber 2 is fixedly connected to a shaping chamber 3 through the rectangular flange 5 and the sealing strip 4. The preheating chamber 1 is provided with four silicone guide rollers 10 and four tension rollers 12. Self-aligning bearing seats 11 are fixedly connected to both sides inside the preheating chamber 1. Two shaft heads 15 are fixedly connected between two self-aligning bearing seats 11, and silicone guide rollers 10 are fixedly connected between the shaft heads 15.

[0025] The fabric is guided into the cavity by the silicone guide roller 10 at the entrance, and infrared radiation is released by the carbon fiber infrared heating tubes 40 arranged symmetrically on the top and bottom. During the preheating process, four tension rollers 12 apply stable tension through the linkage of the ear seat 14 and the self-aligning bearing seat 11 to avoid fabric wrinkles. The Pt100 temperature measuring component 8 monitors the temperature inside the cavity in real time to ensure the uniformity of preheating. The silicone guide roller 10 can compensate for the slight deflection of the shaft system through the cooperation of the shaft head 15 and the self-aligning bearing seat 11 to ensure the smooth transmission of the fabric.

[0026] The preheating chamber 1 is fixedly connected to a bearing positioning shoulder 13 via a shaft head 15. The bearing positioning shoulder 13 is fixedly connected to a tension roller 12. The tension roller 12 is fixedly connected to an ear seat 14 on its side. A carbon fiber infrared heating tube 40 is fixedly connected to the top and bottom of one side of the preheating chamber 1 via bolts. A parabolic reflector 9 is fixedly connected around the carbon fiber infrared heating tube 40. Four Pt100 temperature measuring components 8 are fixedly connected to the top inside the preheating chamber 1.

[0027] The main drying chamber 2 contains six silicone guide rollers 10, six tension rollers 12, and three Pt100 temperature measuring components 8. U-shaped stainless steel heating tubes 16 are fixedly connected to the upper and lower surfaces of the main drying chamber 2 by bolts. Three adjustable baffles 17 are fixedly connected between the U-shaped stainless steel heating tubes 16. Six self-aligning bearing seats 20 are provided at both ends of the main drying chamber 2. The self-aligning bearing seats 20 have four through holes 23. The self-aligning bearing seats 20 are fixedly connected to the inner side wall of the main drying chamber 2 through the through holes 23. Pneumatic correction rollers 19 are fixedly connected to the self-aligning bearing seats 20. The pneumatic correction rollers 19 are located directly above each tension roller 12.

[0028] The preheated fabric enters the main drying chamber, where a U-shaped stainless steel heating tube 16 provides a continuous heat source. The angle of the adjustable baffle 17 is adjusted to make the hot airflow form a turbulent circulation in the chamber and act evenly on the fabric surface. Six silicone guide rollers 10 and tension rollers 12 work together.

[0029] The pneumatic correction roller 19 is fixedly connected to an L-shaped bracket 21. A laser edge sensor 22 is fixedly connected to the L-shaped bracket 21. A through hole is opened on the laser edge sensor 22. A high-temperature resistant cable assembly 18 is provided at the end of the laser edge sensor 22. The high-temperature resistant cable assembly 18 passes around the periphery of the pneumatic correction roller 19 and is fixed to the L-shaped bracket 21 by bolts. It then extends upward along the cavity to connect to the PLC control box 39 on one side of the main drying cavity 2.

[0030] The pneumatic correction roller 19, supported by the self-aligning bearing seat 20, corrects the fabric deviation in real time. The edge position is detected by the laser edge sensor 22 and the signal is transmitted to the PLC control box 39 via the high temperature resistant cable assembly 18 to drive the servo cylinder to achieve correction, ensuring that the fabric is fully dried under constant tension. The Pt100 temperature measuring component 8 dynamically adjusts the heating power to prevent local overheating.

[0031] The shaping cavity 3 contains four silicone guide rollers 10, four tension rollers 12, and three Pt100 temperature measuring components 8. Eight honeycomb nozzle components 24 are fixedly connected to the upper and lower surfaces of the shaping cavity 3. The honeycomb nozzle components 24 are evenly distributed in an array. A microwave moisture content sensor mounting base 25 is fixedly connected to the shaping cavity 3. A simulated microwave transmitting / receiving unit 26 is fixedly connected to the microwave moisture content sensor mounting base 25. A telescopic probe 27 is fixedly connected to the simulated microwave transmitting / receiving unit 26.

[0032] After drying, the fabric enters the shaping chamber. The bidirectional centrifugal fan 28 draws in outside air through the air inlet 29 and delivers it to the honeycomb nozzle assembly 24 through the air outlet 30 and flange 36. The shaping is achieved in conjunction with the stable temperature inside the chamber. The analog microwave transmitting / receiving unit 26 of the microwave moisture content sensor detects the fabric moisture content in real time through the telescopic probe 27.

[0033] A bidirectional centrifugal fan 28 is fixedly connected to one side of the shaping cavity 3. An air inlet 29 and an air outlet 30 are fixedly connected to both ends of the bidirectional centrifugal fan 28, respectively. A flange 36 is fixedly connected to the air outlet 30 through a hole. An exhaust gas induced draft fan box 31 is fixedly connected to the shaping cavity 3. A motor 32 is fixedly connected inside the exhaust gas induced draft fan box 31. The motor 32 is connected to an air supply pipe 33. The air supply pipe 33 is connected to a funnel-shaped gas collection hood 34 at the lower end of the air outlet 30. A three-layer drawer-type activated carbon box 35 is fixedly connected to the shaping cavity 3 and is located directly below the funnel-shaped gas collection hood 34. A hub 37 is rotatably connected inside the bidirectional centrifugal fan 28. Blades 38 are fixedly connected to the hub 37.

[0034] Data is fed back to the PLC control box 39 to adjust the fan speed and heating intensity. At the same time, the exhaust fan box 31 introduces the hot and humid exhaust gas in the cavity into the three-layer drawer-type activated carbon box 35 for purification through the funnel-shaped gas collection hood 34, and finally achieves the emission standard.

[0035] The preheating chamber 1, the main drying chamber 2, and the shaping chamber 3 are each rotatably connected to a door 7, and a head door handle 6 is fixedly connected to the door 7.

[0036] The preheating chamber 1, the main drying chamber 2, and the shaping chamber 3 are each equipped with independent temperature control components, and each is equipped with a silicone guide roller 10 and a tension roller 12. The three are rotatably connected to a door 7, and a door handle 6 is fixedly connected to the door 7.

[0037] The temperature control assembly of the main drying chamber 2 includes a U-shaped stainless steel heating tube 16 and three Pt100 temperature measuring components 8.

[0038] U-shaped stainless steel heating tubes 16 are fixed to the upper and lower sides of the main drying chamber 2 with bolts. Three adjustable baffles 17 are provided between adjacent heating tubes. Through the three-section independent chamber structure and sealing design, precise zoned control of the temperature of each chamber is achieved.

[0039] The temperature control component of the shaping cavity 3 includes a honeycomb nozzle component 24 and three Pt100 temperature measuring components 8.

[0040] The eight honeycomb nozzle assemblies 24 are evenly distributed in an array on the upper and lower surfaces inside the shaping cavity 3. The shaping cavity 3 is equipped with a microwave moisture content sensor mounting base 25, on which a simulated microwave transmitting / receiving unit 26 and a telescopic probe 27 are connected in sequence.

[0041] The outer side of the shaping cavity 3 is fixedly connected to a bidirectional centrifugal fan 28. The bidirectional centrifugal fan 28 has an air inlet 29 and an air outlet 30 with a flange 36 at both ends, and its interior is connected to blades 38 through a hub 37.

[0042] The lower end of the air outlet 30 is connected to the funnel-shaped gas collection hood 34 through the air supply pipe 33, and the air supply pipe 33 is connected to the motor 32 inside the exhaust gas fan box 31.

[0043] A three-layer drawer-type activated carbon box 35 is fixedly connected to the shaping cavity 3, and the activated carbon box 35 is located directly below the funnel-type gas collection hood 34.

[0044] The preheating chamber 1, the main drying chamber 2, and the shaping chamber 3 are respectively equipped with four, six, and four silicone guide rollers 10 and a corresponding number of tension rollers 12.

[0045] Working principle: The fabric is guided into the cavity by the silicone guide roller 10 at the entrance. Infrared radiation is released by the symmetrically arranged carbon fiber infrared heating tubes 40, which, together with the parabolic reflector 9, focus the heat to quickly preheat the fabric. During the preheating process, four tension rollers 12 apply stable tension through the linkage of the ear seat 14 and the self-aligning bearing seat 11 to avoid fabric wrinkles. The Pt100 temperature measuring component 8 monitors the temperature inside the cavity in real time to ensure the uniformity of preheating. The silicone guide roller 10, through the cooperation of the shaft head 15 and the self-aligning bearing seat 11, can compensate for the slight deflection of the shaft system and ensure the smooth transmission of the fabric.

[0046] The preheated fabric enters the main drying chamber, where a U-shaped stainless steel heating tube 16 provides a continuous heat source. The angle of the adjustable baffle 17 is adjusted to create a turbulent circulation of hot air within the chamber, which is then evenly applied to the fabric surface. Six silicone guide rollers 10 work in conjunction with the tension rollers 12. The pneumatic correction rollers 19, supported by the self-aligning bearing seat 20, correct the fabric deviation in real time. The edge position is detected by the laser edge sensor 22, and the signal is transmitted to the PLC control box 39 via the high-temperature resistant cable assembly 18 to ensure that the fabric is fully dried under constant tension. The Pt100 temperature measuring component 8 dynamically adjusts the heating power to prevent local overheating.

[0047] After drying, the fabric enters the shaping chamber. A bidirectional centrifugal fan 28 draws in outside air through the air inlet 29, which is then delivered to the honeycomb nozzle assembly 24 via the air outlet 30 and flange 36. This, combined with the stable temperature within the chamber, achieves shaping. The analog microwave transmitter / receiver unit 26 of the microwave moisture content sensor monitors the fabric moisture content in real time via the telescopic probe 27, and the data is fed back to the PLC control box 39 to adjust the fan speed and heating intensity. Simultaneously, the exhaust fan box 31 guides the hot and humid exhaust gas from the chamber through a funnel-shaped gas collection hood 34 into a three-layer drawer-type activated carbon box 35 for purification, ultimately ensuring compliance with emission standards.

[0048] The three chambers are rigidly connected to the sealing strips 4 via rectangular flanges 5, ensuring the stability of airflow and temperature. The doors 7 of each chamber can be opened independently for easy maintenance; all power and signals are integrated into the PLC control box 39 via high-temperature resistant cable assemblies 18, realizing fully automated control of the entire process.

[0049] The three-stage gradient heating-preheating-drying-shaping process, combined with precise temperature control and airflow optimization, avoids the problems of localized over-drying or wrinkling in traditional single-cavity equipment.

[0050] Self-aligning bearing housing 11 and self-aligning bearing housing 20 compensate for shaft deflection and vibration respectively. With the real-time correction of pneumatic correction roller 19, the fabric transmission offset is controlled within ±2mm. The coordinated tension adjustment of silicone guide roller and tension pressure roller reduces the stretch deformation rate of elastic fabric.

[0051] The carbon fiber infrared heating tube 40 has a thermal efficiency 20% higher than that of traditional electric heating tubes. The intelligent linkage between the U-shaped stainless steel heating tube and the bidirectional centrifugal fan can save energy. The activated carbon box deeply purifies the exhaust gas and meets environmental emission standards.

[0052] Modular cavity design facilitates disassembly and upgrades; independent cabinet door 7 and drawer-type activated carbon box 35 simplify daily maintenance; PLC control box 39 integrates full-process monitoring, supports visual parameter adjustment and fault alarm, and reduces manual operation intensity.

[0053] It can adapt to the processing needs of different fabrics and achieve universal drying and shaping of multiple types of fabrics by adjusting tension parameters and temperature range.

[0054] Structural Description:

[0055] Preheating Chamber 1: As the preheating unit of the oven, it is fixedly connected to the main drying chamber 2 via a rectangular flange 5 and a sealing strip 4. Inside, there are four silicone guide rollers 10, four tension rollers 12, four Pt100 temperature measuring components 8, two sets of carbon fiber infrared heating tubes 40, and a parabolic reflector 9. Self-aligning bearing seats 11 are fixedly connected to both sides. Its function is to release infrared radiation through the carbon fiber infrared heating tubes 40, and focus the heat with the parabolic reflector 9 to quickly preheat the fabric to 60-80℃, laying the temperature foundation for the subsequent drying process. At the same time, the silicone guide rollers 10, tension rollers 12, and Pt100 temperature measuring components 8 ensure stable fabric transfer, no wrinkles, and uniform preheating. As the first stage of the three-stage process, it avoids the fabric from directly entering the high-temperature environment and causing deformation.

[0056] Main drying chamber 2: As the core drying unit of the oven, it is connected to the preheating chamber 1 above via a rectangular flange 5 and a sealing strip 4, and to the shaping chamber 3 below via the same structure. Inside, there are six silicone guide rollers 10, six tension rollers 12, three Pt100 temperature measuring components 8, multiple sets of U-shaped stainless steel heating tubes 16, adjustable baffles 17, and pneumatic correction rollers 19. Self-aligning bearing seats 20 are fixedly connected at both ends, and a PLC control box 39 is located on one side of the exterior. Its function is to provide a continuous heat source of 100-150℃ through the U-shaped stainless steel heating tubes 16, and to form a turbulent circulating hot airflow with the adjustable baffles 17, so that the fabric is fully dried under constant tension. At the same time, the pneumatic correction rollers 19 correct the fabric deviation in real time. As the middle section of the three-stage processing, it achieves efficient removal of moisture from the fabric.

[0057] The shaping chamber 3 serves as the shaping unit of the oven. It is connected to the main drying chamber 2 via a rectangular flange 5 and a sealing strip 4. Inside, there are four silicone guide rollers 10, four tension rollers 12, three Pt100 temperature measuring components 8, sixteen honeycomb nozzle components 24, and a microwave moisture content sensor. A bidirectional centrifugal fan 28 is fixedly connected to one side of the exterior, as well as an exhaust fan box 31 and a three-layer drawer-type activated carbon box 35. Its function is to form a uniform airflow through the bidirectional centrifugal fan 28 and the honeycomb nozzle components 24, and achieve fabric shaping with a stable temperature of 120-180℃. At the same time, the fabric moisture content is detected in real time by the microwave moisture content sensor, and the humid and hot exhaust gas is purified by the exhaust gas treatment components. As the final stage of the three-stage treatment, it ensures that the final smoothness and moisture content of the fabric meet the standards.

[0058] Sealing strip 4: It is fitted into the hole on the upper surface of the rectangular flange 5 and clamped between the preheating chamber 1 and the main drying chamber 2, and between the main drying chamber 2 and the shaping chamber 3. Its function is to fill the flange connection gap, realize the sealed connection of the three chambers, reduce the overall air leakage rate of the oven, avoid the leakage of hot air in the chamber and cause temperature fluctuations, and at the same time prevent the intrusion of cold air from affecting the drying and shaping effect, and ensure the stability of temperature and airflow in each chamber.

[0059] Rectangular flange 5: It is fixedly connected to the lower part of the preheating chamber 1, the upper and lower ends of the main drying chamber 2, and the upper part of the shaping chamber 3 respectively. The upper surface is provided with holes for fitting the sealing strip 4. Its function is to serve as a rigid connecting carrier for the three chambers. It achieves tight fixation between the chambers by bolts and sealing strip 4, ensuring the overall structure of the oven is stable. At the same time, it provides installation positioning for sealing strip 4, ensuring the sealing effect. The modular flange connection design facilitates the disassembly and assembly of the chambers and subsequent upgrades.

[0060] Door handle 6: Fixedly connected to the door 7; its function is to provide operators with a convenient point of force to open or close the door 7, reduce the difficulty of maintenance operations, and improve the efficiency of inspection and cleaning of internal components.

[0061] Door 7: It is rotatably connected to the preheating chamber 1, the main drying chamber 2 and the shaping chamber 3 respectively; its function is to realize the independent opening and closing of each chamber, so that the operator can maintain, repair and thread the fabric inside the chamber. At the same time, it closes when the oven is working to help maintain the temperature inside the chamber and reduce heat loss.

[0062] Pt100 temperature sensing components 8: a total of ten sets, including 4 sets for the preheating chamber, 3 sets for the main drying chamber, and 3 sets for the shaping chamber, which are fixedly connected to the upper or side of each chamber. Their function is to monitor the temperature in the corresponding chamber in real time and transmit the temperature signal to the PLC control box 39 to realize dynamic control of the heating power. For example, if the temperature of the main drying chamber is too high, the power of the U-shaped stainless steel heating tube 16 is reduced to ensure that the temperature difference of the preheating chamber 1 and the temperatures of the main drying chamber 2 and the shaping chamber 3 are stable within the set range, so as to avoid local overheating or insufficient heating of the fabric.

[0063] Parabolic reflector 9: It is fixedly connected around the carbon fiber infrared heating tube 40 inside the preheating cavity 1; its function is to focus the infrared radiation released by the carbon fiber infrared heating tube 40, so that the heat is concentrated on the fabric surface, improve the utilization rate of infrared heating, speed up the preheating speed of the fabric, and at the same time reduce the diffusion of heat to other areas of the cavity and reduce energy consumption.

[0064] Silicone guide rollers 10: There are fourteen sets in total, including four sets of preheating chambers, six sets of main drying chambers, and four sets of shaping chambers. They are fixed in each chamber by shaft heads 15 and self-aligning bearing seats 11 or 20. Their function is to guide the fabric in the transmission path within the chamber. The silicone material has good anti-slip properties and flexibility, which can prevent the fabric from slipping or being scratched during transmission. At the same time, through the cooperation of the shaft head and the bearing seat, it can compensate for the slight deflection of the shaft system, ensuring that the fabric remains stable during transmission without deviation or wrinkles.

[0065] Self-aligning bearing seat 11: It is fixedly connected to both sides inside the preheating cavity 1 and the shaping cavity 3; its function is to provide support and positioning for the shaft head 15 of the silicone guide roller 10, and at the same time, it has a self-aligning function, which can compensate for the slight deflection of the shaft system during operation, avoid the silicone guide roller 10 from tilting due to shaft system offset, and thus ensure the stability of fabric transmission and prevent fabric wrinkles or offset.

[0066] Tension rollers 12: There are fourteen sets in total, including four sets of preheating chambers, six sets of main drying chambers, and four sets of shaping chambers. They are fixed to self-aligning bearing seats 11 or 20 via bearing positioning shoulders 13 and are arranged symmetrically above and below the silicone guide rollers 10. Their function is to apply stable tension to the fabric through linkage with self-aligning bearing seats 11 or 20, so as to avoid wrinkles caused by heat shrinkage during the heating process, reduce the stretch deformation rate of elastic fabrics, and ensure the flatness of the fabric after drying and shaping.

[0067] Bearing positioning shoulder 13: It is fixedly connected to the shaft head 15 of the preheating cavity 1 and the shaping cavity 3, and is also fixedly connected to the tension roller 12. Its function is to provide precise positioning for the tension roller 12, ensure that the tension roller 12 and the silicone guide roller 10 maintain a symmetrical relative position, so that the tension is evenly applied to the fabric surface, and at the same time enhance the stability of the connection between the tension roller 12 and the shaft head 15, and prevent the tension roller 12 from loosening or shifting during operation.

[0068] Ear seat 14: Fixedly connected to the side of tension roller 12 and linked with self-aligning bearing seat 11; its function is to serve as a transmission connection between tension roller 12 and self-aligning bearing seat 11, transmitting the adjustment action of self-aligning bearing seat 11 to tension roller 12, so that tension roller 12 can adjust its position in real time according to the fabric transmission state, ensuring that the applied tension is always stable within the set range, and avoiding wrinkles or stretching deformation of the fabric due to tension fluctuations.

[0069] Shaft head 15: Fixedly connected to both ends of the silicone guide roller 10, and both ends are respectively fixed to the self-aligning bearing seat 11 or the self-aligning bearing seat 20; its function is to connect the silicone guide roller 10 to the bearing seat, provide rotational support for the silicone guide roller 10, and at the same time, through cooperation with the bearing seat, realize the compensation of small deflection of the shaft system, ensure that the silicone guide roller 10 always maintains horizontal rotation, and ensure the smooth transmission of the fabric.

[0070] U-shaped stainless steel heating tube 16: It is fixedly connected to the upper and lower sides inside the main drying chamber 2; its function is to serve as the core heat source of the main drying chamber 2. It releases heat by being energized, so that the temperature inside the chamber is maintained at 100-150℃, providing continuous and stable heat for drying the fabric. Compared with straight heating tubes, the U-shaped structure can increase the heating area and improve the heat radiation coverage, ensuring that the fabric is heated evenly. At the same time, the stainless steel material is resistant to high temperature and corrosion, extending its service life.

[0071] Adjustable baffle 17: There are multiple baffles in total. Three baffles are installed between every two sets of U-shaped stainless steel heating tubes 16 inside the main drying chamber 2. They are fixedly connected between the U-shaped stainless steel heating tubes 16 inside the main drying chamber 2. Their function is to change the flow direction of the hot air in the chamber by adjusting their own angle, so that the hot air forms a turbulent circulation, avoids the local accumulation of hot air in the chamber, ensures that the hot air acts evenly on the fabric surface, improves the uniformity of fabric drying, and prevents local over-drying or under-drying.

[0072] High-temperature resistant cable assembly 18: One end is connected to the end of the laser edge sensor 22, passes around the periphery of the pneumatic correction roller 19 and is fixed to the L-shaped bracket 21 by bolts, and the other end extends to the PLC control box 39 on the side of the main drying chamber 2; its function is to stably transmit the detection signal of the laser edge sensor 22 to the PLC control box 39 in a high-temperature environment, and at the same time transmit the command signal of the PLC control box 39 to the servo cylinder of the pneumatic correction roller 19. The high-temperature resistant characteristics ensure that the cable does not age or get damaged at the working temperature of the drying oven, and ensure the continuity and accuracy of signal transmission.

[0073] Pneumatic correction roller 19: Fixedly connected to the self-aligning bearing seat 20 of the main drying chamber 2, located directly above the six tension rollers 12; its function is to correct the fabric deviation in real time during the transmission process. When the laser edge sensor 22 detects the fabric deviation, the signal is transmitted to the PLC control box 39 through the high-temperature resistant cable assembly 18. The PLC drives the servo cylinder to control the pneumatic correction roller 19 to correct the deviation, ensuring that the fabric is always transmitted in the center of the chamber, avoiding friction damage between the fabric edge and the inner wall of the chamber, and ensuring the uniformity of drying.

[0074] Self-aligning bearing seats 20: There are six in total, which are fixedly connected to the inner side walls at both ends of the main drying chamber 2. They are fixed with bolts through through holes 23 and respectively connect the pneumatic correction roller 19 and some of the silicone guide rollers 10 and tension rollers 12. Their function is to provide support and positioning for the rollers, pneumatic correction rollers 19, silicone guide rollers 10 and other components in the main drying chamber 2. They have a self-aligning function, which can compensate for the vibration and slight deviation of the rollers during operation, ensuring that the pneumatic correction roller 19 can move accurately and the rollers can rotate smoothly, thereby ensuring the stability of fabric transmission and correction.

[0075] L-shaped bracket 21: It is fixedly connected to the pneumatic correction roller 19 and the laser edge sensor 22. Its function is to provide stable installation support for the laser edge sensor 22, ensuring that the laser edge sensor 22 is in the optimal detection position at the edge of the fabric. At the same time, the L-shaped structure facilitates the position adjustment and subsequent maintenance of the sensor, ensuring the accuracy of the detection signal.

[0076] Laser edge sensor 22: It is fixedly connected to L-shaped bracket 21, has a through hole, and is connected to high temperature resistant cable assembly 18 at the end; its function is to detect the edge position of the fabric in the main drying chamber 2 in real time. When the fabric shifts, the laser signal emitted through the through hole will change. The sensor transmits the shift signal to PLC control box 39 through high temperature resistant cable assembly 18, providing signal basis for the correction action of pneumatic correction roller 19.

[0077] Through holes 23: There are 24 in total, 4 of which are provided on each of the six self-aligning bearing seats 20. Their function is to provide installation channels for bolts, so that the self-aligning bearing seats 20 can be fixedly connected to the inner side wall of the main drying chamber 2 by bolts, ensuring that the self-aligning bearing seats 20 are firmly installed, avoiding loosening during roller operation or pneumatic correction, and ensuring the stability of roller support and correction action.

[0078] Honeycomb nozzle assembly 24: There are sixteen in total, with eight on each of the upper and lower surfaces inside the shaping cavity 3, and they are evenly distributed and fixed in an array. Its function is to convert the airflow delivered by the bidirectional centrifugal fan 28 into a uniform columnar airflow and blow it vertically onto the fabric surface. The honeycomb structure can ensure that the airflow is evenly distributed and avoid local airflow being too strong or too weak, so that the fabric is heated and stressed evenly during the shaping process, thereby improving the flatness of the fabric after shaping.

[0079] Microwave moisture content sensor mounting base 25: It is fixedly connected inside the shaping cavity 3; its function is to provide installation positioning for the analog microwave transmitting / receiving unit 26, ensuring that the sensor unit is directly above or below the fabric, so that the telescopic probe 27 can contact or get close to the fabric to detect the moisture content, while ensuring that the sensor unit is installed stably in a high-temperature environment and avoiding vibration that causes the detection position to shift.

[0080] Analog microwave transmitting / receiving unit 26: It is fixedly connected to the microwave moisture content sensor mounting base 25, and the lower end is fixedly connected to the telescopic probe 27. Its function is to serve as the core component of the microwave moisture content sensor. It transmits microwave signals to the fabric through the telescopic probe 27 and receives microwave signals reflected or penetrated by the fabric. It calculates the moisture content of the fabric based on the degree of signal attenuation and transmits the data to the PLC control box 39 to provide a basis for adjusting the fan speed and heating intensity.

[0081] Telescopic probe 27: Fixedly connected to the lower end of the analog microwave transmitting / receiving unit 26; its function is to directly contact or be close to the fabric to transmit the microwave signal from the microwave transmitting / receiving unit. The telescopic structure can adjust the distance between the probe and the fabric according to the fabric thickness to ensure stable detection signal and avoid moisture content detection errors caused by changes in fabric thickness.

[0082] Bidirectional centrifugal fan 28: It is fixedly connected to one side of the outside of the shaping cavity 3, with the air inlet 29 and the air outlet 30 connected at both ends respectively. Its function is to serve as the airflow power source for the shaping cavity 2. It draws in outside air through the air inlet 29, pressurizes it through the rotation of the internal hub 37 and blades 38, and then delivers it from the air outlet 30 to the flange 36, and then into the honeycomb nozzle assembly 24 to form a uniform airflow, providing stable airflow conditions for fabric shaping. The bidirectional design allows the airflow direction to be adjusted as needed to adapt to the shaping requirements of different fabrics.

[0083] Air inlet 29: Fixedly connected to one end of bidirectional centrifugal fan 28; its function is to provide an air intake channel for bidirectional centrifugal fan 28, so that outside air can smoothly enter the fan. At the same time, a filter screen can be installed at the air inlet to filter dust and impurities in the air and prevent impurities from entering the shaping cavity 3 with the airflow to contaminate the fabric or block the honeycomb nozzle assembly 24.

[0084] Air outlet 30: It is fixedly connected to the other end of the bidirectional centrifugal fan 28 and connected to the flange 36 through a hole; its function is to transport the airflow pressurized by the bidirectional centrifugal fan 28 to the flange 36, and then introduce it into the honeycomb nozzle assembly 24 of the shaping cavity 3 as the airflow output channel, so as to ensure that the airflow can be stably and efficiently transmitted to the nozzle assembly and ensure that the pressure and wind speed of the shaping airflow meet the standards.

[0085] Exhaust gas exhaust fan box 31: It is fixedly connected to the shaping cavity 3, and the motor 32 is fixedly connected inside. Its function is to serve as the power source of the exhaust gas treatment system. The motor 32 drives the internal fan to rotate, generating negative pressure to draw in the humid and hot exhaust gas in the shaping cavity 3, and then transport it to the funnel-shaped gas collection hood 34 to provide power for exhaust gas purification and prevent the humid and hot exhaust gas from accumulating in the cavity and affecting the shaping effect.

[0086] Motor 32: Fixedly connected inside the exhaust gas fan box 31 and connected to the air supply pipe 33; its function is to provide rotational power for the exhaust gas fan box 31, drive the fan blades to rotate and generate negative pressure, and at the same time, by adjusting the motor speed, change the exhaust gas extraction rate to ensure that the hot and humid exhaust gas in the cavity can be discharged in time and maintain the airflow balance inside the cavity.

[0087] Air supply duct 33: One end is connected to the motor 32 pipe of the exhaust gas fan box 31, and the other end is connected to the funnel-shaped gas collection hood 34 pipe; its function is to serve as a transmission channel for humid and hot exhaust gas, transporting the exhaust gas extracted by the exhaust gas fan box 31 to the funnel-shaped gas collection hood 34, and then introducing it into the three-layer drawer-type activated carbon box 35 for purification, ensuring that the exhaust gas transmission path is sealed and leak-free, and preventing the exhaust gas from spreading into the workshop environment.

[0088] Funnel-shaped gas collection hood 34: The pipe is connected to the lower end of the air supply pipe 33 and is located directly above the three-layer drawer-type activated carbon box 35. Its function is to collect the humid and hot exhaust gas transmitted by the air supply pipe 33 and make the exhaust gas evenly enter the three-layer drawer-type activated carbon box 35 below through the funnel-shaped structure, so as to avoid the local accumulation of exhaust gas and cause uneven adsorption of activated carbon, thereby improving the exhaust gas purification efficiency.

[0089] The three-layer drawer-type activated carbon box 35 is fixedly connected to the shaped cavity 3 and located directly below the funnel-shaped gas collection hood 34. Its function is to purify the exhaust gas by adsorbing VOCs and odor substances in the humid and hot exhaust gas through the activated carbon filled inside. The three-layer drawer structure facilitates the replacement and cleaning of activated carbon, reducing maintenance costs. At the same time, the multi-layer design extends the residence time of exhaust gas in the box, improves the adsorption effect, and ensures that the exhaust gas meets the emission standards.

[0090] Flange 36: It is fixedly connected to the inlet of the honeycomb nozzle assembly 24 in the shaping cavity 3 and connected to the outlet 30 of the bidirectional centrifugal fan 28 through a hole; its function is to serve as a connecting component between the bidirectional centrifugal fan 28 and the honeycomb nozzle assembly 24, ensuring that the transmission path of airflow from the outlet 30 to the nozzle assembly is sealed, avoiding airflow leakage that would cause a decrease in wind speed, and facilitating the disassembly and maintenance of the fan and the nozzle assembly.

[0091] Hub 37: Rotatably connected inside the bidirectional centrifugal fan 28, with blades 38 fixedly connected to it; its function is to drive the blades 38 to rotate, and through the centrifugal force of the hub, draw air in from the air inlet 29, pressurize it through the blades 38, and discharge it from the air outlet 30, providing power for the airflow. The structural design of the hub ensures that the blades rotate smoothly, reduces vibration and noise, and extends the service life of the fan.

[0092] Blade 38: Fixedly connected to the hub 37 of the bidirectional centrifugal fan 28; its function is to cut the air by rotation, converting mechanical energy into the kinetic and pressure energy of the airflow, so that the air flows from the air inlet 29 to the air outlet 30. The shape and angle design of the blade can improve the airflow pressurization efficiency and ensure that the airflow at the air outlet 30 can meet the wind speed requirements of the honeycomb nozzle assembly 24.

[0093] PLC control box 39: Fixedly connected to one side of the main drying chamber 2, and connected to various detection components, Pt100 temperature measuring component 8, laser edge sensor 22, microwave moisture content sensor and actuators such as pneumatic correction roller 19, heating tube and fan through high temperature resistant cable assembly 18; its function is to serve as the control core of the oven, receive signals from various detection components, calculate and output instructions according to preset programs, control the actions of actuators, realize full-process automated control, and support parameter visualization adjustment and fault alarm, reducing the intensity of manual operation.

[0094] Carbon fiber infrared heating tubes 40: There are two sets, which are fixedly connected to the upper and lower sides of one side of the preheating chamber 1 by bolts; their function is to serve as the core heat source of the preheating chamber 1. By energizing, they release infrared radiation, which, together with the parabolic reflector 9, focuses the heat and quickly heats the fabric to 60-80℃. The thermal efficiency of carbon fiber material is higher than that of traditional electric heating tubes. It can heat up quickly and consumes less energy. At the same time, the infrared radiation can penetrate the surface of the fabric, so as to achieve simultaneous preheating of the inside and outside of the fabric, avoiding the problem of the surface being too dry and the inner layer not being heated.

[0095] Finally, it should be noted that the above embodiments are merely representative examples of this utility model. Obviously, this utility model is not limited to the above embodiments and can have many variations. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model should be considered to fall within the protection scope of this utility model.

Claims

1. A drying oven for drying textile fabrics, comprising a preheating chamber (1), characterized in that: The structure includes a preheating chamber (1), a main drying chamber (2), and a shaping chamber (3) that are fixedly connected in sequence by a rectangular flange (5) and a sealing strip (4). The upper surface of the rectangular flange (5) is perforated and fitted with a sealing strip (4) to achieve sealing and heat preservation between the chambers. The preheating chamber (1), the main drying chamber (2) and the shaping chamber (3) are each equipped with independent temperature control components, and each is equipped with a silicone guide roller (10) and a tension roller (12). The three are rotatably connected to a door (7) on the outside, and a door handle (6) is fixedly connected to the door (7). The temperature control components of the main drying chamber (2) include a U-shaped stainless steel heating tube (16) and three Pt100 temperature measuring components (8). The U-shaped stainless steel heating tube (16) is fixed to the upper and lower sides of the main drying chamber (2) by bolts, and three adjustable baffles (17) are provided between adjacent heating tubes; through the three-section independent chamber structure and sealing design, the temperature of each chamber can be accurately controlled in zones.

2. The drying oven for drying textile fabrics according to claim 1, characterized in that: The preheating cavity (1) has self-aligning bearing seats (11) fixedly connected to both sides inside, and a silicone guide roller (10) is fixedly connected between the two self-aligning bearing seats (11) through a shaft head (15). The shaft head (15) is also fixedly connected to a bearing positioning shoulder (13), which is fixedly connected to the tension roller (12), and the tension roller (12) is provided with an ear seat (14) on its side.

3. The drying oven for drying textile fabrics according to claim 2, characterized in that: The temperature control components of the preheating chamber (1) include carbon fiber infrared heating tubes (40) and four Pt100 temperature measuring components (8). The carbon fiber infrared heating tube (40) is fixed to one side of the preheating cavity (1) by bolts, and a parabolic reflector (9) is provided around it. The Pt100 temperature measuring component (8) is fixed to the upper part of the preheating cavity (1).

4. The drying oven for drying textile fabrics according to claim 3, characterized in that: The temperature control components of the main drying chamber (2) include a U-shaped stainless steel heating tube (16) and three Pt100 temperature measuring components (8). The main drying chamber (2) is fixedly connected to pneumatic alignment rollers (19) at both ends through self-aligning bearing seats (20) with through holes (23). The pneumatic alignment rollers (19) are located directly above the six tension rollers (12).

5. The drying oven for drying textile fabrics according to claim 4, characterized in that: An L-shaped bracket (21) is fixedly connected to the pneumatic correction roller (19). The L-shaped bracket (21) is equipped with a laser edge sensor (22). The high-temperature resistant cable assembly (18) at the end of the laser edge sensor (22) passes around the pneumatic correction roller (19) and is fixed to the L-shaped bracket (21), and extends to the PLC control box (39) on the side of the main drying chamber (2).

6. The drying oven for drying textile fabrics according to claim 5, characterized in that: The temperature control components of the shaping cavity (3) include a honeycomb nozzle assembly (24) and three Pt100 temperature measuring components (8). The eight honeycomb nozzle assemblies (24) are evenly distributed in an array on the upper and lower surfaces inside the shaping cavity (3). The shaping cavity (3) is provided with a microwave moisture content sensor mounting base (25), on which a simulated microwave transmitting / receiving unit (26) and a telescopic probe (27) are connected in sequence.

7. The drying oven for drying textile fabrics according to claim 6, characterized in that: The outer side of the shaping cavity (3) is fixedly connected to a bidirectional centrifugal fan (28). The bidirectional centrifugal fan (28) has an air inlet (29) and an air outlet (30) with a flange (36) at both ends. The blades (38) are connected inside the fan through a hub (37). The lower end of the air outlet (30) is connected to the funnel-shaped gas collection hood (34) through the air supply pipe (33), and the air supply pipe (33) is connected to the motor (32) inside the exhaust gas fan box (31).

8. The drying oven for drying textile fabrics according to claim 7, characterized in that: The shaped cavity (3) is fixedly connected to a three-layer drawer-type activated carbon box (35), which is located directly below the funnel-type gas collecting hood (34); The preheating chamber (1), the main drying chamber (2), and the shaping chamber (3) are respectively equipped with four, six, and four silicone guide rollers (10) and a corresponding number of tension rollers (12).

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