CN114436019A - A conveying and leveling device and system for printing textile fabrics - Google Patents

Abstract

The invention discloses a conveying and leveling device and a system for printed textile fabric, which comprises a detection device and an intelligent fabric conveying system, wherein the detection device comprises a base, two groups of side plates are fixedly connected to the left side and the right side of the base, upper shafts are respectively connected to the middles of the upper ends of the two groups of side plates in a bearing manner, a motor is fixedly connected to the upper end of one side plate, the upper shaft is fixedly connected with an output shaft of the motor, upper wheels are respectively fixedly connected to the front-end excircles of the two groups of upper shafts, lower shafts are respectively connected to the middles of the lower ends of the two groups of side plates in a bearing manner, lower wheels are respectively fixedly connected to the front-end excircles of the lower shafts in a bearing manner, a discharging roller is fixedly connected to the middle of the left lower wheel, a receiving roller is fixedly connected to the middle of the right lower wheel, a plurality of telescopic rods are respectively arranged on the excircles of the two lower wheels, and matching wheels are respectively connected to the inner bearings of the telescopic rods, according to the invention, the waterproof performance and grading function of the fabric can be intelligently detected conveniently and efficiently.

Description

A conveying and leveling device and system for printing textile fabrics

technical field

The invention is applied to the background of textile conveying, and the name is a conveying and leveling device and system for printing textile fabrics.

Background technique

Waterproof fabric is a new type of textile fabric. Its composition is made of high polymer waterproof and breathable material plus fabric composite fabric. When the waterproof fabric encounters water, it will not get wet, and it will not chemically react with water. Usually waterproof fabrics are used in places that are prone to contact with water, such as high humidity and rain. Clothes made of waterproof fabrics can not only be wash-free, but also save the trouble of carrying umbrellas in rainy days.

However, the existing waterproof fabrics on the market are mixed, and the waterproof effect cannot achieve the expected effect, mainly because the existing testing methods are sampling testing, which cannot be tested as a whole, and there are many uncertainties in the waterproof performance of the fabric.

Therefore, it is necessary to provide a conveying and leveling device and system for printing textile fabrics, which can achieve the function of intelligently detecting and classifying the waterproofness of fabrics.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a conveying and leveling device and system for printing textile fabrics, so as to solve the above-mentioned problems in the background art.

In order to solve the above technical problems, the present invention provides the following technical solutions: a conveying and leveling device and system for printing textile fabrics, including a detection device and an intelligent fabric conveying system, the detection device includes a base, the left and right sides of the base are Two sets of side plates are fixedly connected, the upper ends of the two sets of side plates are both connected with an upper shaft by a bearing, the upper end of the side plates on one side is fixedly connected with a motor, and the upper shaft on one side is fixedly connected with the output shaft of the motor. , the outer circles of the front ends of the upper shafts of the two groups are fixedly connected with the upper wheels, the lower ends of the two groups of the side plates are all connected to the lower shafts with bearings, and the outer circles of the front ends of the lower shafts are fixedly connected with the lower wheels. The middle of the lower wheel on the side is fixedly connected with a feeding roller, and the middle of the lower wheel on the right side is fixedly connected with a receiving roller. The outer circles of the two lower wheels are provided with a plurality of sets of telescopic rods. The telescopic rods A matching wheel is connected with the inner bearing of the upper wheel, and the matching wheel is connected with the upper wheel belt.

In one embodiment, a pulley is fixedly connected to the middle of the upper shaft, the two sets of pulleys are connected by a belt, and the outer side of the belt is fixedly connected with a cylinder at an equal distance, the cylinder is a hollow structure, and the The cylinder runs through the belt and is a retractable structure, the lower end of the cylinder is provided with a pressure sensor, the upper end of the base is fixedly connected with a bracket, the upper end of the bracket is fixedly connected with a spray head, and the spray head is connected to the water source pipeline , a valve is arranged in the connecting pipe between the nozzle and the water source, a camera is arranged on the side of the bracket, a mounting bracket is arranged on the right side of the bracket, the upper end of the installation bracket is fixedly connected with a fan, and the right side of the base is provided with a fan. The side is provided with a small plate, the upper end of the small plate is fixedly connected with an induction spring, the upper end of the induction spring is fixedly connected with a water collecting tank, the right side of the water collecting tank is provided with a water discharge pipe, and the tail end of the water discharge pipe is provided with There is a water pump.

In one embodiment, 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 by radio;

The intelligent control module includes a data recording module, a data operation 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 quantity detection module, and the intelligent operation module includes a drainage module, a spray a water 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 tension detection module is electrically connected with the pressure sensor, the water leakage detection module is electrically connected with the camera, the water volume detection module is electrically connected with the induction spring, the drainage module is electrically connected with the water pump, and the water spray module is electrically connected with the spray head , the fabric conveying unit and the cylinder conveying unit are electrically connected with the motor, the adjusting unit is electrically connected with the telescopic rod, the air drying module is electrically connected with the fan, and the telescopic module is electrically connected with the cylinder.

In one embodiment, the operation of the intelligent fabric conveying system includes the following steps:

S1. Place the finished fabric at the position of the unwinding roller, pull out a section to fix it with the receiving roller, and then start the intelligent fabric conveying system to test the waterproof performance of the fabric while the fabric is being wound in sections;

S2. Use the tension detection module to collect the tension information of the fabric in real time, use the water leakage detection module to collect the water leakage status information of the fabric, and the water volume detection module to collect the increase information of the water in the water collecting tank, together with the preset value of the intelligent fabric conveying system, and store it in the in the data logging module;

S3. According to the collected data, test and evaluate the waterproof performance of the fabric in stages, and grade according to the evaluation results, and mark the corresponding position with a specific label;

S4. At the same time of fabric detection, use the data operation module to calculate, determine the fabric tension adjustment strategy, and adjust the fabric transmission tension through the adjustment unit;

S5. Repeat S2-S4 to complete the marking of the waterproofness level of the fabric and the tension control during the winding process.

Compared with the prior art, the beneficial effects achieved by the present invention are: 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 by setting the detection device and the intelligent fabric conveying system, At the same time of detection, the diameter of the lower wheel is used to adjust the speed of the unwinding roller and the receiving roller, so as to achieve the purpose of ensuring the stable transmission of the fabric.

Description of drawings

The technical solutions and other beneficial effects of the present application will be apparent through the detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings.

In the attached image:

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the front structure schematic diagram of the present invention;

Fig. 3 is the partial structure schematic diagram of the lower wheel of the present invention;

Fig. 4 is the schematic diagram of the mutual relationship of the system modules of the present invention;

In the picture: 1. Base; 2. Side plate; 3. Upper shaft; 4. Pulley; 5. Lower shaft; 6. Unwinding roller; 7. Receiving roller; 8. Lower wheel; 9. Upper wheel; 10, Belt; 11, cylinder; 12, bracket; 13, nozzle; 14, small plate; 15, water collecting tank; 16, water discharge pipe; 17, water pump; 18, induction spring; 19, fan; 20, camera; 21, telescopic Rod; 22. Matching wheel; 23. Motor; 24. Mounting frame.

Detailed ways

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the application. Furthermore, this application may repeat reference numerals and/or reference letters in different instances for the purpose of simplicity and clarity, and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, this application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

1-4, the present invention provides technical solutions: a conveying and leveling device and system for printing textile fabrics, including a detection device and an intelligent fabric conveying system, characterized in that the detection device includes a base 1, and the base 1 is about Two sets of side plates 2 are fixedly connected on both sides. The upper ends of the two sets of side plates 2 are both connected with an upper shaft 3 by bearings. The upper end of one side plate 2 is fixedly connected with a motor 23, and the output of the upper shaft 3 and the motor 23 is fixed on one side. The shafts are fixedly connected, the outer circles of the front ends of the two sets of upper shafts 3 are fixedly connected with the upper wheels 9, the middle of the lower ends of the two sets of side plates 2 are both connected with the lower shafts 5, and the outer circles of the front ends of the lower shafts 5 are fixedly connected with the lower wheels. 8. The middle of the left lower wheel 8 is fixedly connected with the feeding roller 6, the middle of the right lower wheel 8 is fixedly connected with the receiving roller 7, and the outer circles of the two lower wheels 8 are provided with multiple sets of telescopic rods 21, which can be stretched and retracted. The inner bearing of the rod 21 is connected with a matching wheel 22. The matching wheel 22 is connected with the belt of the upper wheel 9. The middle of the upper shaft 3 is fixedly connected with a pulley 4. There is a cylinder 11, the cylinder 11 is a hollow structure, the cylinder 11 penetrates the belt 10 and is a retractable structure, the lower end of the cylinder 11 is provided with a pressure sensor, 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 A nozzle 13 is fixedly connected, the nozzle 13 is connected with the 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, and the upper end of the mounting bracket 24 is arranged A fan 19 is fixedly connected, a small plate 14 is arranged on the right side of the base 1, an induction spring 18 is fixedly connected to the upper end of the small plate 14, a water collecting tank 15 is fixedly connected to the upper end of the induction spring 18, and a water collecting tank 15 is arranged on the right side of the water collecting tank 15. The water pipe 16 and the end of the water discharge pipe 16 are provided with a water pump 17. By setting the detection device and the 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 of the lower wheel 8 is used to adjust the speed of the unwinding roller 6 and the receiving roller 7, so as to achieve the purpose of ensuring the stable transmission of the fabric;

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 by radio;

The intelligent control module includes a data recording module, a data operation 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 quantity detection module. The intelligent operation module includes a drainage module, a water spray module, a conveying module, Air-drying module and telescopic module, the conveying module includes fabric conveying unit, cylinder conveying unit and adjustment unit;

The tension detection module is electrically connected with the pressure sensor, the water leakage detection module is electrically connected with the camera 20, the water volume detection module is electrically connected with the induction spring 18, the drainage module is electrically connected with the water pump 17, the water spray module is electrically connected with the spray head 13, the fabric conveying unit is electrically connected with the circular The cylinder conveying unit is electrically connected with the motor 23, the adjusting unit is electrically connected with the telescopic rod 21, the air drying module is electrically connected with the fan 19, and the telescopic module is electrically connected with the cylinder 11;

The data recording module is used to record various data collected in real time, including the preset values of the intelligent fabric conveying system, the data operation module is used to calculate the recorded data, and the logic judgment module is used to analyze and judge the calculation results, and determine the adjustment and classification. 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 status information of the fabric, and the water quantity detection module is used to collect the information in the water collecting tank 15. Information on the increase of water, the drainage module is used to discharge the water in the water collecting tank 15, the water spray 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 them match, and the air drying module is used to For the air-drying operation of the fabric, the telescopic module is used to make the cylinder 11 contact the fabric;

The operation of the intelligent fabric conveying system consists of the following steps:

S1. Place the wound fabric at the position of the unwinding roller 6, and pull out a section to fix it with the receiving roller 7, and then start the intelligent fabric conveying system to perform waterproof performance on the fabric while the fabric is being wound in sections. detection;

S2. Use the tension detection module to collect the tension information of the fabric in real time, use the water leakage detection module to collect the water leakage state information of the fabric, and the water volume detection module to collect the water increase information in the water collecting tank 15, and store it together with the preset value of the intelligent fabric conveying system in the data logging module;

S3. According to the collected data, test and evaluate the waterproof performance of the fabric in stages, and grade according to the evaluation results, and mark the corresponding position with a specific label;

S4. At the same time of fabric detection, use the data operation module to calculate, determine the fabric tension adjustment strategy, and adjust the fabric transmission tension through the adjustment unit;

S5. Repeat S2-S4 to complete the marking of the waterproofness level 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 equal distances and at a constant speed according to a certain rhythm;

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 transmitted synchronously, the cylinder 11 at the lower end of the belt 10 is stretched in close contact with the fabric, and the height of each stretch is equal;

S24. When the cylinder 11 moves below the spray head 13, use the spray head 13 to inject a quantitative amount of water M _water into the cylinder 11, and use the camera 20 to observe whether there are water drops while injecting water, and set the water injection time as T, the time It is the interval time of fabric segmented transmission;

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;

S26, the fabric continues to be transported and collected by the take-up roller 7, the remaining moisture on the fabric will enter the water collection tank 15, and the quality data is collected by the induction spring 18, and the water collection tank 15 is emptied every T time, setting The mass of the collecting tank 15 is M ₀ ;

By setting the parameters of the collected data, it is convenient to quantify the subsequent calculation and analysis;

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

S31. In S24, when there is water dripping, it is determined that the fabric is unqualified, and when there is no water dripping, it is determined that the fabric is qualified, and a grade evaluation is performed according to the subsequent test results;

S32, in S26, set the quality collected in real time by the water collecting tank 15 as M, then:

When M=M ₀ +M _water , it means that the fabric is impervious to water, and it is judged to be grade A;

时，说明渗水较少，判定为B级；when

, it means that there is less water seepage, and it is judged as grade B;

时，说明渗水较多，判定为C级；when

When it shows that there is more water seepage, it is judged as C grade;

According to the test results, the waterproof performance of the fabric is graded and marked, which is convenient for the subsequent classification and use of the fabric;

The timing of fabric tension adjustment in S4 is as follows:

In the process of fabric transmission, the diameter of the fabric roll on the unwinding roller 6 gradually decreases, while the diameter of the fabric roll on the take-up roller 7 gradually increases, and the rotational angular speed of the two is the same, resulting in a gradual increase in the tension of the fabric , so that the value collected by the pressure sensor increases, and the average value collected by the pressure sensor at time t is set as F _t , then:

表示t时刻第i个压力传感器采集的数值，n表示压力传感器的数量，同时设定初始状态下的采集的数值均为F₀，则：in

represents the value collected by the i-th pressure sensor at time t, n represents the number of pressure sensors, and set the value collected in the initial state to be F ₀ , then:

When 95%F ₀ ≤F _t ≤105%F ₀ , the tension of the fabric does not need to be adjusted;

When F _t >105%F ₀ , 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 according to the transmission situation of the fabric to ensure the smooth transmission of the fabric;

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

With the progress of fabric winding, the diameter of the fabric roll on the unwinding roller 6 decreases faster, while the increase in the diameter of the fabric roll on the take-up roller 7 becomes slower, and the longer the winding time, the greater the difference between the two. is large, according to the change range of the tension within the T time, it is precisely adjusted, and the change of the pressure sensor data within the T time is set as ΔF, then:

When 0≤ΔF≤0.5%F ₀ , it means that the tension change is small within T time. When adjusting, the left lower wheel 8 is adjusted to the first gear, and the right lower wheel 8 is adjusted to the first gear;

When 0.5%F ₀ <ΔF < 1% F ₀ , it means that the tension change within T time is moderate. During adjustment, the left lower wheel 8 is adjusted to two gears, and the right lower wheel 8 is adjusted to one gear;

When ΔF>1%F ₀ , it means that the tension change is small 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;

According to the change of fabric tension per unit time, different strategies are adopted during adjustment, so as to ensure the smooth conveying of the fabric and the minimum adjustment times;

The method of tension adjustment in S4 is as follows:

Through the extension and shortening of the telescopic rod 21, the outer expansion and inner contraction of the matching wheel 22 are controlled, thereby changing the matching diameter of the lower wheel 8 and the belt, thereby changing the rotation speed of the unwinding roller 6 and the receiving roller 7, and controlling the fabric For the purpose of tension, set the lower wheel 8 on the left to have a diameter reduction adjustment function, and the right lower wheel 8 to have an adjustment function of increasing diameter. At the same time, the lower wheels 8 on both sides are adjusted by one gear each time, and the tension is changed by 2.5%F ₀ .

In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection or can communicate with each other; can be directly connected, can be the internal communication of two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the above-mentioned terms in this application can be understood according to specific circumstances.

A cleaning device provided by the embodiments of the present application has been introduced in detail above. The principles and implementations of the present application are described in this article by using specific examples. The descriptions of the above embodiments are only used to help understand the technical solutions of the present application. and its core idea; those of ordinary skill in the art should understand that: it is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some of the technical features; and these modifications or replacements do not make the corresponding The essence of the technical solutions deviates from the scope of the technical solutions of the embodiments of the present application.

Claims (9)

1. A conveying and leveling device for printing textile fabrics, comprising a detection device, characterized in that: the detection device comprises a base (1), and the left and right sides of the base (1) are fixedly connected with two groups of side plates ( 2), the upper ends of the two sets of side plates (2) are all bearing connected with the upper shaft (3) in the middle, the upper end of the side plates (2) on one side is fixedly connected with the motor (23), and the upper shaft on the one side is fixedly connected with the motor (23). (3) It is fixedly connected with the output shaft of the motor (23), the outer circles of the front ends of the two sets of the upper shafts (3) are fixedly connected with the upper wheels (9), and the middle of the lower ends of the two sets of the side plates (2) are fixedly connected. The bearing is connected with a lower shaft (5), the outer circle of the front end of the lower shaft (5) is fixedly connected with a lower wheel (8), and the middle of the lower wheel (8) on the left side is fixedly connected with a feeding roller (6) , the middle of the lower wheel (8) on the right side is fixedly connected with a receiving roller (7), and the outer circles of the lower wheels (8) at two places are provided with multiple sets of telescopic rods (21), the telescopic rods ( The inner bearing of 21) is connected with a matching wheel (22), and the matching wheel (22) is connected with the belt of the upper wheel (9). 2. A conveying and leveling device for printing textile fabrics according to claim 1, characterized in that: the middle of the upper shaft (3) is fixedly connected with a pulley (4), and two sets of the pulleys ( 4) Connected by a belt (10), the outer side of the belt (10) is fixedly connected with a cylinder (11) at equal distances, the cylinder (11) is a hollow structure, and the cylinder (11) penetrates 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 in the middle of the upper end of the base (1), and a bracket (12) is fixedly connected in the middle of the upper end of the bracket (12). A spray head (13), the spray head (13) is connected with a water source pipeline, a valve is provided in the connecting pipe between the spray head (13) and the water source, a camera (20) is provided on the side of the bracket (12), and the support The right side of (12) is provided with a mounting frame (24), the upper end of the mounting frame (24) is fixedly connected with the fan (19), the right side of the base (1) is provided with a small plate (14), the The upper end of the small plate (14) is fixedly connected with an induction spring (18), the upper end of the induction spring (18) is fixedly connected with a water collection tank (15), and a water discharge pipe (16) is arranged on the right side of the water collection tank (15). ), a water pump (17) is provided at the rear end of the water discharge pipe (16). 3. A conveying and leveling system for printing textile fabrics according to claim 2, comprising an intelligent fabric conveying system, characterized in that: the intelligent fabric conveying system comprises an intelligent control module, an intelligent detection module and an intelligent operation module , the intelligent control module, intelligent detection module and intelligent operation module are connected by radio; The intelligent control module includes a data recording module, a data operation 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 quantity detection module, and the intelligent operation module includes a drainage module, a spray a water 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 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), and the drainage module is electrically connected to the water pump (17), The water spray module is electrically connected to the spray head (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), and the air drying module is electrically connected to the fan (19) Electrical connection, the telescopic module is electrically connected with the cylinder (11). 4. A conveying and leveling system for printing textile fabrics according to claim 3, characterized in that: the operation of the intelligent fabric conveying system comprises the following steps: S1. Place the finished fabric at the position of the unwinding roller (6), pull out a section to fix it with the take-up roller (7), and then start the intelligent fabric conveying system, while the fabric is being wound in sections, the The fabric is tested for waterproof performance; S2. Use the tension detection module to collect the tension information of the fabric in real time, use the water leakage detection module to collect the water leakage state information of the fabric, and the water quantity detection module to collect the information of the increase of water in the water collecting tank (15), together with the preset value of the intelligent fabric conveying system, are stored together in the data logging module; S3. According to the collected data, test and evaluate the waterproof performance of the fabric in stages, and grade according to the evaluation results, and mark the corresponding position with a specific label; S4. At the same time of fabric detection, use the data operation module to calculate, determine the fabric tension adjustment strategy, and adjust the fabric transmission tension through the adjustment unit; S5. Repeat S2-S4 to complete the marking of the waterproofness level of the fabric and the tension control during the winding process. 5. a kind of conveying and leveling system for printing textile fabrics according to claim 4, is characterized in that: the method for data collection in described S2 is as follows: S21. Driven by the motor, the belt (10) is transmitted at a constant distance and at a constant speed according to a certain rhythm; 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 synchronously transported, the cylinder (11) at the lower end of the belt (10) is stretched in close contact with the fabric, and the heights of each stretch are equal; S24. When the cylinder (11) moves below the nozzle (13), use the nozzle (13) to inject a quantitative amount of water M into the cylinder (11), and use the camera (20) to observe whether there is _water dripping while the water is being injected , set the water injection time as T, which is the interval time of the fabric segmented transmission; 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); S26, the fabric continues to be transported and collected by the take-up roller (7), the remaining moisture on the fabric will enter the water collecting tank (15), at the same time use the induction spring (18) to collect quality data, and empty it every T time the water collection tank (15), the mass of the water collection tank (15) is set to be M ₀ ; By setting the parameters of the collected data, it is convenient for the quantification of subsequent calculation and analysis. 6. a kind of conveying and leveling system for printing textile fabrics according to claim 5, is characterized in that: the method for fabric waterproof performance grading and marking in described S3 is as follows: S31. In S24, when there is water dripping, it is determined that the fabric is unqualified, and when there is no water dripping, it is determined that the fabric is qualified, and a grade evaluation is performed according to the subsequent test results; S32, in S26, set the quality collected in real time by the water collecting tank (15) as M, then: When M=M ₀ +M _water , it means that the fabric is impervious to water, and it is judged to be grade A; when

, it means that there is less water seepage, and it is judged as grade B; when

When it shows that there is more water seepage, it is judged as C grade; According to the test results, the waterproof performance of the fabric is graded and marked, which is convenient for the subsequent classification and use of the fabric. 7. a kind of conveying and leveling system for printing textile fabrics according to claim 6, is characterized in that: in described S4, fabric tension adjustment timing is as follows: In the process of fabric conveying, the diameter of the fabric roll on the unwinding roller (6) gradually decreases, while the diameter of the fabric roll on the take-up roller (7) gradually increases, and the rotational angular speed of the two is the same, resulting in the fabric The tension increases gradually, so that the value collected by the pressure sensor increases, and the average value collected by the pressure sensor at time t is set as F _t , then:

in

represents the value collected by the i-th pressure sensor at time t, n represents the number of pressure sensors, and set the value collected in the initial state to be F ₀ , then: When 95%F ₀ ≤F _t ≤105%F ₀ , the tension of the fabric does not need to be adjusted; When F _t >105%F ₀ , 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 according to the transmission situation of the fabric to ensure the smooth transmission of the fabric. 8. a kind of conveying and leveling system for printing textile fabrics according to claim 7, is characterized in that: the determination method of described S4 fabric tension adjustment range is as follows: As the material is wound, the diameter of the material roll on the unwinding roll (6) decreases faster, while the diameter of the material roll on the take-up roll (7) increases at a slower rate, and the longer the winding time, The greater the difference between the two, the precise adjustment is made according to the change range of the tension within the time T, and the change of the pressure sensor data within the time T is set as ΔF, then: When 0≤ΔF≤0.5%F ₀ , it means that the tension change is small within the time T. When adjusting, the left lower wheel (8) is adjusted to the first gear, and the right lower wheel (8) is adjusted to the first gear; When 0.5%F ₀ <ΔF < 1%F ₀ , it means that the tension change is moderate within T time. When adjusting, the left lower wheel (8) is adjusted to two gears, and the right lower wheel (8) is adjusted to one gear; When ΔF>1%F ₀ , it means that the tension change is small 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; According to the change of fabric tension per unit time, different strategies are adopted during adjustment, so as to ensure the smooth conveying of the fabric and the minimum number of adjustments. 9. a kind of conveying and leveling system for printing textile fabrics according to claim 8, is characterized in that: the method for tension adjustment in described S4 is as follows: Through the extension and shortening of the telescopic rod (21), the outer expansion and inner contraction of the matching wheel (22) are controlled, so as to change the matching diameter of the lower wheel (8) and the belt, thereby changing the feeding roller (6) and the material receiving. The rotation speed of the roller (7), for the purpose of controlling the tension of the fabric, set the lower wheel (8) on the left to have a diameter reduction adjustment function, and the right lower wheel (8) to have an adjustment function to increase the diameter. Each time the lower wheel (8) is adjusted by one gear, the tension is changed by 2.5%F ₀ .

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