Conveying and leveling device for printed textile fabric

Abstract

The conveying and leveling device comprises a detection device and an intelligent fabric conveying system, the detection device comprises a base, two sets of side plates are fixedly connected to the left side and the right side of the base, and upper shafts are connected to the middles of the upper ends of the two sets of side plates through bearings; a motor is fixedly connected to the upper end of the side plate on one side, the upper shaft on one side is fixedly connected with an output shaft of the motor, upper wheels are fixedly connected to the excircles of the front ends of the two sets of upper shafts, lower shafts are connected to the middles of the lower ends of the two sets of side plates through bearings, and lower wheels are fixedly connected to the excircles of the front ends of the lower shafts; a discharging roller is fixedly connected to the middle of the lower wheel on the left side, a collecting roller is fixedly connected to the middle of the lower wheel on the right side, multiple sets of telescopic rods are arranged on the outer circles of the two lower wheels, and matching wheels are connected to the inner sides of the telescopic rods through bearings.

Description

Technical Field

[0001] The invention is applied to the background of textile conveying, and is named as a conveying and leveling device for printed textile fabrics. Background Art

[0002] Waterproof fabric is a new type of textile fabric, which is composed of a polymer waterproof and breathable material plus a cloth composite fabric. When the waterproof fabric comes into contact with water, it will not get wet, and it will not produce chemical reactions with water. Usually waterproof fabric is used in places with high humidity and heavy rain that are easily exposed to water. Clothes made of waterproof fabric are not only wash-free, but also save the trouble of carrying an umbrella on rainy days.

[0003] However, the waterproof fabrics on the market are of mixed quality, and the waterproof effect cannot achieve the expected effect. This is mainly because the existing testing methods are all sampling tests, which cannot achieve overall testing, and there are many uncertainties in the waterproof performance of the fabric.

[0004] Therefore, it is necessary to provide a conveying and leveling device and system for printed textile fabrics, which can achieve the function of intelligently detecting the waterproofness of the fabrics and grading them. Summary of the invention

[0005] The object of the present invention is to provide a conveying and leveling device and system for printed textile fabrics to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a conveying and leveling device and system for printed textile fabrics, comprising a detection device and an intelligent fabric conveying system, the detection device comprising a base, two groups of side plates are fixedly connected on the left and right sides of the base, the upper ends of the two groups of side plates are both connected to upper shafts by bearings in the middle, the upper end of one side of the side plate is fixedly connected to a motor, the upper shaft on one side is fixedly connected to the output shaft of the motor, the front end outer circles of the two groups of upper shafts are both fixedly connected to upper wheels, the lower ends of the two groups of side plates are both connected to lower shafts by bearings in the middle, the front end outer circles of the lower shafts are both fixedly connected to lower wheels, the middle of the lower ends of the left side of the lower wheel is fixedly connected to a discharge roller, the middle of the right side of the lower wheel is fixedly connected to a receiving roller, the outer circles of the two lower wheels are both provided with multiple groups of telescopic rods, the inner side bearings of the telescopic rods are connected to matching wheels, and the matching wheels are connected to the upper wheel belt.

[0007] In one embodiment, a pulley is fixedly connected to the middle of the upper shaft, and two groups of the pulleys are connected by belts. A cylinder is equidistantly fixedly connected to the outside of the belt, and the cylinder is a hollow structure. The cylinder passes through the belt and is a retractable structure. A pressure sensor is provided at the lower end of the cylinder, a bracket is fixedly connected to the middle of the upper end of the base, a nozzle is fixedly connected to the middle of the upper end of the bracket, the nozzle is connected to a water source pipe, a valve is provided in the connecting pipe between the nozzle and the water source, a camera is provided on the side of the bracket, a mounting frame is provided on the right side of the bracket, a fan is fixedly connected to the upper end of the mounting frame, a small plate is provided on the right side of the base, an induction spring is fixedly connected to the upper end of the small plate, a water collecting tank is fixedly connected to the upper end of the induction spring, a drain pipe is provided on the right side of the water collecting tank, and a water pump is provided at the tail end of the drain pipe.

[0008] In one embodiment, the intelligent fabric delivery system includes an intelligent control module, an intelligent detection module, and an intelligent operation module, wherein the intelligent control module, the intelligent detection module, and the intelligent operation module are connected via radio;

[0009] The intelligent control module includes a data recording module, a data calculation module, a logic judgment module and a time control module; the intelligent detection module includes a tension detection module, a water leakage detection module and a water volume detection module; the intelligent operation module includes a drainage module, a water spray module, a conveying module, an air drying module and a telescopic module; the conveying module includes a fabric conveying unit, a cylinder conveying unit and an adjustment unit;

[0010] The tension detection module is electrically connected to the pressure sensor, the water leakage detection module is electrically connected to the camera, the water volume detection module is electrically connected to the induction spring, the drainage module is electrically connected to the water pump, the water spray module is electrically connected to the nozzle, the fabric conveying unit and the cylinder conveying unit are electrically connected to the motor, the adjustment unit is electrically connected to the telescopic rod, the air-drying module is electrically connected to the fan, and the telescopic module is electrically connected to the cylinder.

[0011] In one embodiment, the operation of the intelligent fabric delivery system comprises the following steps:

[0012] S1. Place the rolled fabric on the unwinding roller, pull out a section and fix it to the receiving roller, then start the intelligent fabric conveying system, and test the waterproof performance of the fabric while the fabric is rolled up in sections;

[0013] S2, using the tension detection module to collect the tension information of the fabric in real time, using the leakage detection module to collect the leakage status information of the fabric, and the water volume detection module to collect the increase amount of water in the water collection tank, and store it together with the preset value of the intelligent fabric transmission system in the data recording module;

[0014] S3. According to the collected data, the waterproof performance of the fabric is tested and evaluated in sections, and the fabric is graded according to the evaluation results, and marked at the corresponding position with a specific number;

[0015] S4. While the fabric is being detected, the data operation module is used to perform calculations to determine the strategy for adjusting the fabric tension, and the tension of the fabric transmission is adjusted through the adjustment unit;

[0016] S5. Repeat S2-S4 to complete the waterproof grade marking of the fabric and the tension control during the winding process.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: by setting up a detection device and an intelligent fabric conveying system, the present invention can complete the waterproof performance detection and rating marking of the fabric by observing the dripping state and the amount of remaining water, and at the same time, by utilizing the diameter change of the lower wheel to adjust the speed of the unwinding roller and the receiving roller, thereby achieving the purpose of ensuring stable fabric transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0019] In the attached picture:

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a front structural schematic diagram of the present invention;

[0022] Figure 3 It is a schematic diagram of the local structure of the lower wheel of the present invention;

[0023] Figure 4 It is a schematic diagram of the relationship between the system modules of the present invention;

[0024] In the figure: 1. base; 2. side panel; 3. upper shaft; 4. pulley; 5. lower shaft; 6. unloading roller; 7. collecting roller; 8. lower wheel; 9. upper wheel; 10. belt; 11. cylinder; 12. bracket; 13. nozzle; 14. small plate; 15. water collecting tank; 16. drain pipe; 17. water pump; 18. induction spring; 19. fan; 20. camera; 21. telescopic rod; 22. matching wheel; 23. motor; 24. mounting bracket. DETAILED DESCRIPTION

[0025] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and material examples provided by the present application, but those of ordinary skill in the art can appreciate the application of other processes and / or the use of other materials.

[0026] See also Figure 1-4 The present invention provides a technical solution: a conveying and leveling device and system for printed textile fabrics, comprising a detection device and an intelligent fabric conveying system, characterized in that: the detection device comprises a base 1, two sets of side panels 2 are fixedly connected to the left and right sides of the base 1, the upper ends of the two sets of side panels 2 are both connected to upper shafts 3 by bearings in the middle, the upper ends of the side panels 2 on one side are fixedly connected to a motor 23, the upper shaft 3 on one side is fixedly connected to the output shaft of the motor 23, the front end outer circles of the two sets of upper shafts 3 are both fixedly connected to upper wheels 9, the lower ends of the two sets of side panels 2 are both connected to upper shafts 3 by bearings in the middle. A lower shaft 5 is connected, and the outer circle of the front end of the lower shaft 5 is fixedly connected to a lower wheel 8, a discharge roller 6 is fixedly connected to the middle of the left lower wheel 8, and a receiving roller 7 is fixedly connected to the middle of the right lower wheel 8. The outer circles of the two lower wheels 8 are provided with multiple groups of telescopic rods 21, and the inner bearings of the telescopic rods 21 are connected to matching wheels 22, and the matching wheels 22 are connected to the upper wheel 9 by belts. The middle of the upper shaft 3 is fixedly connected to a pulley 4, and the two groups of pulleys 4 are connected by a belt 10. The outer side of the belt 10 is equidistantly fixedly connected to a cylinder 11, and the cylinder 11 is a hollow structure. The cylinder 11 passes through the belt 10 and is a retractable structure. A pressure sensor is arranged at the lower end of the cylinder 11. A bracket 12 is fixedly connected to the middle of the upper end of the base 1. A nozzle 13 is fixedly connected to the middle of the upper end of the bracket 12. The nozzle 13 is connected to a water source pipeline. A valve is arranged in the connecting pipeline between the nozzle 13 and the water source. A camera 20 is arranged on the side of the bracket 12. A mounting frame 24 is arranged on the right side of the bracket 12. A fan 19 is fixedly connected to the upper end of the mounting frame 24. A small plate 14 is arranged on the right side of the base 1. The small plate 14 The upper end of the induction spring 18 is fixedly connected to the water collecting box 15, and the right side of the water collecting box 15 is provided with a drain pipe 16, and the tail end of the drain pipe 16 is provided with a water pump 17. By setting up a detection device and an intelligent fabric conveying system, the waterproof performance detection and rating mark of the fabric can be completed by observing the dripping state and the amount of remaining water. At the same time, the diameter change of the lower wheel 8 is used to adjust the speed of the discharge roller 6 and the collection roller 7, so as to achieve the purpose of ensuring stable fabric transmission;

[0027] The intelligent fabric conveying system includes an intelligent control module, an intelligent detection module and an intelligent operation module, and the intelligent control module, the intelligent detection module and the intelligent operation module are connected via radio;

[0028] The intelligent control module includes a data recording module, a data calculation module, a logic judgment module and a time control module; the intelligent detection module includes a tension detection module, a water leakage detection module and a water volume detection module; the intelligent operation module includes a drainage module, a water spray module, a conveying module, an air drying module and a telescopic module; the conveying module includes a fabric conveying unit, a cylinder conveying unit and an adjustment unit;

[0029] The tension detection module is electrically connected to the pressure sensor, the water leakage detection module is electrically connected to the camera 20, the water volume detection module is electrically connected to the induction spring 18, the drainage module is electrically connected to the water pump 17, the water spray module is electrically connected to the nozzle 13, the fabric conveying unit and the cylinder conveying unit are electrically connected to the motor 23, the adjustment unit is electrically connected to the telescopic rod 21, the air drying module is electrically connected to the fan 19, and the telescopic module is electrically connected to the cylinder 11;

[0030] The data recording module is used to record various data collected in real time, including the preset value of the intelligent fabric transmission system, the data operation module is used to calculate the recorded data, the logic judgment module is used to analyze and judge the calculation results, and determine the adjustment and classification strategies, the time control module is used to control the time parameters of each action of the system, the tension detection module is used to collect the tension information of the fabric in real time, the water leakage detection module is used to collect the water leakage state information of the fabric, the water volume detection module is used to collect the increase amount information of the water in the water collection tank 15, the drainage module is used to drain the water from the water collection tank 15, the water spraying module is used to spray water to the fabric, the conveying module is used to control the conveying of the fabric and the cylinder 11, and make the two match, the air drying module is used to air dry the fabric, and the telescopic module is used to make the cylinder 11 contact with the fabric;

[0031] The operation of the intelligent fabric delivery system includes the following steps:

[0032] S1. Place the rolled fabric on the position of the unwinding roller 6, and pull out a section to fix it on the receiving roller 7, then start the intelligent fabric conveying system, and test the waterproof performance of the fabric while the fabric is rolled up in sections;

[0033] S2, using the tension detection module to collect the tension information of the fabric in real time, using the leakage detection module to collect the leakage status information of the fabric, and the water volume detection module to collect the increase amount of water in the water collection tank 15, and store it together with the preset value of the intelligent fabric transmission system in the data recording module;

[0034] S3. According to the collected data, the waterproof performance of the fabric is tested and evaluated in sections, and the fabric is graded according to the evaluation results, and marked at the corresponding position with a specific number;

[0035] S4. While the fabric is being detected, the data operation module is used to perform calculations to determine the strategy for adjusting the fabric tension, and the tension of the fabric transmission is adjusted through the adjustment unit;

[0036] S5, repeat S2-S4 to complete the waterproof grade marking of the fabric and the tension control during the winding process;

[0037] The method of data collection in S2 is as follows:

[0038] S21, driven by the motor, the belt 10 is transmitted at a constant speed and at a certain beat;

[0039] S22, the initial transmission speed of the fabric is the same as that of the belt 10;

[0040] S23, while the belt 10 and the fabric are being transmitted synchronously, the cylinder 11 at the lower end of the belt 10 is stretched to be in close contact with the fabric, and the height of each stretch is equal;

[0041] S24, when the cylinder 11 moves to the bottom of the nozzle 13, a certain amount of water M water is injected into the cylinder 11 by the nozzle 13. While injecting water, a camera 20 is used to observe whether there is water dripping. The injection time is set to T, which is the interval time of the fabric segment transmission;

[0042] S25, after the water injection is completed, the fabric is transferred to the next station, and the lower end of the fabric is air-dried by the fan 19;

[0043] S26, the fabric continues to be transported and collected by the receiving roller 7, and the remaining water on the fabric section enters the water collecting box 15. At the same time, the induction spring 18 is used to collect quality data, and the water collecting box 15 is emptied every T time, and the mass of the water collecting box 15 is set to M0;

[0044] By setting the parameters of the collected data, the subsequent calculation and analysis can be easily quantified;

[0045] The method for grading and marking the waterproof performance of fabrics in S3 is as follows:

[0046] S31. In S24, when water drops, the fabric is judged to be unqualified, and when no water drops, the fabric is judged to be qualified, and a grade evaluation is performed according to subsequent test results;

[0047] S32. In S26, the mass collected in real time by the water collecting tank 15 is set to M, then:

[0048] When M = M0 + Mwater, it means that the fabric is impermeable to water and is judged as grade A;

[0049] when When the water seepage is less, it is judged as Class B;

[0050] when When the water seepage is high, it is judged as Class C.

[0051] The waterproof performance of the fabric is graded and marked according to the test results to facilitate the subsequent classification and use of the fabric;

[0052] The timing of adjusting fabric tension in S4 is as follows:

[0053] During the fabric transmission process, the diameter of the fabric roll on the unwinding roller 6 gradually decreases, while the diameter of the fabric roll on the receiving roller 7 gradually increases, and the rotation angular velocity of the two is consistent, resulting in a gradual increase in the tension of the fabric, thereby increasing the value collected by the pressure sensor. Assuming that the average value collected by the pressure sensor at time t is Ft, then:

[0054]

[0055] in represents the value collected by the i-th pressure sensor at time t, n represents the number of pressure sensors, and the values ​​collected in the initial state are all set to F0, then:

[0056] When 95%F0≤Ft≤105%F0, the tension of the fabric does not need to be adjusted;

[0057] When Ft>105%F0, the tension of the fabric needs to be adjusted, and when the transmission is stopped, it is adjusted by changing the diameter of the lower wheels 8 on both sides;

[0058] Determine the timing of fabric tension adjustment according to fabric transmission conditions to ensure smooth fabric transmission;

[0059] The method for determining the adjustment range of S4 fabric tension is as follows:

[0060] As the fabric is rolled up, the speed at which the diameter of the fabric roll on the unwinding roller 6 decreases becomes faster, while the speed at which the diameter of the fabric roll on the receiving roller 7 increases becomes slower. The longer the rolling time, the greater the difference between the two. According to the change amplitude of the tension within the time T, precise adjustment is made. The change of the pressure sensor data within the time T is set to ΔF, then:

[0061] When 0≤ΔF≤0.5%F0, it means that the tension changes little within T time. When adjusting, the left lower wheel 8 is adjusted by one gear, and the right lower wheel 8 is adjusted by one gear;

[0062] When 0.5%F0<ΔF<1%F0, it means that the tension changes moderately within T time. When adjusting, the left lower wheel 8 is adjusted by two gears, and the right lower wheel 8 is adjusted by one gear;

[0063] When ΔF>1%F0, it means that the tension changes little within T time. When adjusting, the left lower wheel 8 is adjusted by two gears, and the right lower wheel 8 is adjusted by two gears;

[0064] According to the change of fabric tension in unit time, different strategies are adopted during adjustment to ensure smooth fabric transportation with the least number of adjustments;

[0065] The method of tension adjustment in S4 is as follows:

[0066] By extending and shortening the telescopic rod 21, the expansion and contraction of the matching wheel 22 are controlled, thereby changing the matching diameter of the lower wheel 8 and the belt, thereby achieving the purpose of changing the rotation speed of the unwinding roller 6 and the receiving roller 7 and controlling the tension of the fabric. The lower wheel 8 on the left is set to have a diameter reduction adjustment function, and the lower wheel 8 on the right has a diameter increase adjustment function. At the same time, the lower wheels 8 on both sides are adjusted by one gear each time, and the tension changes by 2.5% F0.

[0067] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, the internal connection of two elements, or the interaction relationship between two elements. For ordinary technicians in this field, the above terms in this application can be understood according to specific circumstances.

[0068] The above is a detailed introduction to a cleaning device provided in an embodiment of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. A conveying and leveling device for printed textile fabrics, comprising a detection device and an intelligent fabric conveying system, characterized in that: The detection device comprises a base (1), wherein two groups of side plates (2) are fixedly connected to the left and right sides of the base (1), the middle of the upper ends of the two groups of side plates (2) are both connected to an upper shaft (3) by bearings, the upper end of one side of the side plate (2) is fixedly connected to a motor (23), the upper shaft (3) on one side is fixedly connected to the output shaft of the motor (23), the front end outer circles of the two groups of upper shafts (3) are both fixedly connected to an upper wheel (9), the middle of the lower ends of the two groups of side plates (2) are both connected to a lower shaft (5) by bearings, the front end outer circles of the lower shaft (5) are both fixedly connected to a lower wheel (8), the middle of the left lower wheel (8) is fixedly connected to a material discharge roller (6), the middle of the right lower wheel (8) is fixedly connected to a material collection roller (7), the outer circles of the two lower wheels (8) are both provided with a plurality of groups of telescopic rods (21), the inner side bearings of the telescopic rods (21) are connected to matching wheels (22), and the matching wheels (22) are connected to the upper wheel (9) by belts; The intelligent fabric transmission system comprises an intelligent control module, an intelligent detection module and an intelligent operation module, wherein the intelligent control module, the intelligent detection module and the intelligent operation module are connected via radio; The intelligent control module includes a data recording module, a data calculation module, a logic judgment module and a time control module; the intelligent detection module includes a tension detection module, a water leakage detection module and a water volume detection module; the intelligent operation module includes a drainage module, a water spray module, a conveying module, an air drying module and a telescopic module; the conveying module includes a fabric conveying unit, a cylinder conveying unit and an adjustment unit; The middle of the upper shaft (3) is fixedly connected with a pulley (4), and two groups of the pulleys (4) are connected by a belt (10). The outer side of the belt (10) is fixedly connected with a cylinder (11) at an equal distance, and the cylinder (11) is a hollow structure. The cylinder (11) passes through the belt (10) and is a retractable structure. A pressure sensor is arranged at the lower end of the cylinder (11). The middle of the upper end of the base (1) is fixedly connected with a bracket (12), and the middle of the upper end of the bracket (12) is fixedly connected with a nozzle (13), and the nozzle (13) is connected to a water source pipeline. The nozzle (13) ) is provided with a valve in a connecting pipe between the support (12) and a water source, a camera (20) is provided on the side of the support (12), a mounting frame (24) is provided on the right side of the support (12), a fan (19) is fixedly connected to the upper end of the mounting frame (24), a small plate (14) is provided on the right side of the base (1), a sensing spring (18) is fixedly connected to the upper end of the small plate (14), a water collecting box (15) is fixedly connected to the upper end of the sensing spring (18), a water discharge pipe (16) is provided on the right side of the water collecting box (15), and a water pump (17) is provided at the tail end of the water discharge pipe (16); The invention comprises an intelligent fabric conveying system, wherein the tension detection module is electrically connected to a pressure sensor, the water leakage detection module is electrically connected to a camera (20), the water volume detection module is electrically connected to an induction spring (18), the drainage module is electrically connected to a water pump (17), the water spray module is electrically connected to a spray head (13), the fabric conveying unit and the cylinder conveying unit are electrically connected to a motor (23), the adjustment unit is electrically connected to a telescopic rod (21), the air drying module is electrically connected to a fan (19), and the telescopic module is electrically connected to a cylinder (11); The operation of the intelligent fabric delivery system comprises the following steps: S1, placing the rolled fabric on the position of the unwinding roller (6), pulling out a section and fixing it on the receiving roller (7), then starting the intelligent fabric conveying system, and testing the waterproof performance of the fabric while the fabric is rolled up in sections; S2, using the tension detection module to collect the tension information of the fabric in real time, using the leakage detection module to collect the leakage status information of the fabric, and using the water volume detection module to collect the increase amount information of the water in the water collection tank (15), and store them together with the preset value of the intelligent fabric transmission system in the data recording module; S3. According to the collected data, the waterproof performance of the fabric is tested and evaluated in sections, and the fabric is graded according to the evaluation results, and marked at the corresponding position with a specific number; S4. While the fabric is being detected, the data operation module is used to perform calculations to determine the strategy for adjusting the fabric tension, and the tension of the fabric transmission is adjusted through the adjustment unit; S5, repeat S2-S4 to complete the waterproof grade marking of the fabric and the tension control during the winding process; The method of data collection in S2 is as follows: S21, driven by the motor, the belt (10) is transmitted at a constant speed and at a constant interval according to a certain beat; S22, the initial transmission speed of the fabric is the same as that of the belt (10); S23, while the belt (10) and the fabric are being transmitted synchronously, the cylinder (11) at the lower end of the belt (10) is stretched to be in close contact with the fabric, and the height of each stretch is equal; S24, when the cylinder (11) moves to the bottom of the nozzle (13), a certain amount of water M water is injected into the cylinder (11) by using the nozzle (13). While injecting water, a camera (20) is used to observe whether water drops. The injection time is set to T, which is the interval time of the segmented transmission of the fabric; S25, after the water injection is completed, the fabric is transferred to the next station, and the lower end of the fabric is air-dried by a fan (19); S26, the fabric continues to be transported and collected by the receiving roller (7), and the remaining water on the fabric section enters the water collecting box (15). At the same time, the induction spring (18) is used to collect quality data, and the water collecting box (15) is emptied every T time, and the mass of the water collecting box (15) is set to M0; By setting the parameters of the collected data, the subsequent calculation and analysis can be easily quantified; The method for grading and marking the waterproof performance of fabrics in S3 is as follows: S31. In S24, when water drops, the fabric is judged to be unqualified, and when no water drops, the fabric is judged to be qualified, and a grade evaluation is performed according to subsequent test results; S32. In S26, the mass collected in real time by the water collecting tank (15) is set to M, then: When M = M0 + Mwater, it means that the fabric is impermeable to water and is judged as grade A; when When the water seepage is less, it is judged as Class B; when When the water seepage is high, it is judged as Class C. The waterproof performance of the fabric is graded and marked according to the test results to facilitate the subsequent classification and use of the fabric; The timing of adjusting the fabric tension in S4 is as follows: During the fabric transmission process, the diameter of the fabric roll on the unwinding roller (6) gradually decreases, while the diameter of the fabric roll on the receiving roller (7) gradually increases, and the rotational angular velocities of the two are consistent, resulting in a gradual increase in the tension of the fabric, thereby increasing the value collected by the pressure sensor. Assuming that the average value collected by the pressure sensor at time t is Ft, then: in represents the value collected by the i-th pressure sensor at time t, n represents the number of pressure sensors, and the values ​​collected in the initial state are all set to F0, then: When 95%F0≤Ft≤105%F0, the tension of the fabric does not need to be adjusted; When Ft>105%F0, the tension of the fabric needs to be adjusted, and when the transmission is stopped, it is adjusted by changing the diameter of the lower wheels (8) on both sides; Determine the timing of fabric tension adjustment based on fabric transmission conditions to ensure smooth fabric transmission.

Images