Automated wear and tear testing device for textile materials

Abstract

The present invention discloses an automated testing device for wear and consumption of textile materials, comprising a cabin and a rotating device in the cabin. A plurality of arc-shaped air belts are arranged on the side edges of circular front and rear side panels of the cabin, and circular additional front and rear panels are arranged on the circular front and rear panels, and a plurality of sensors are arranged on each quadrant of the circular additional front and rear panels. According to the threshold value and the shortest time of the pre-test, the control device automatically calculates, and timely warns by comparing with the threshold value and the time. When it is predicted that the material is about to stick to the wall, the corresponding air belt is blown at a special angle, and the specific pressure set according to the gram weight is blown, so that the material is prevented from sticking to the wall during the test. A locking device is arranged on the rotating position, which improves the degree of automation of the test and improves the test accuracy.

Description

Technical Field

[0001] The invention relates to the field of textile technology, in particular to an automatic consumption testing device for textile materials. Background Art

[0002] Currently, the wear and tear performance of textile materials is one of their main mechanical properties, and their wear and tear performance directly affects the performance and application of textile materials. The main test method for wear and tear performance is to test the wear of textile materials in contact with abrasives, and then evaluate the wear and tear performance of textile materials through appearance evaluation or mass loss methods.

[0003] However, existing testing equipment takes a long time to complete, impacting test efficiency. Increasing the friction of the abrasive and the weight of the test block can reduce test time, but it can easily wear through the textile material during a relatively short wear test, rendering the test invalid. Consequently, frequent checks are required during the test, resulting in a low degree of automation, time-consuming and labor-intensive, and a high number of invalid tests, impacting both accuracy and efficiency. Summary of the Invention

[0004] To overcome these shortcomings, the present device incorporates a rotating mechanism within a chamber and abrasive material within the chamber's inner walls. A textile sample is placed within the chamber and, through the rotation of the rotating mechanism, abrades the sample under the action of the abrasive material. The wear and tear performance of the sample is then measured by measuring the mass loss over a specified period of time. The speed of the rotating mechanism is adjustable, enabling tests to be completed quickly for textile materials of varying mass per unit area and style, thereby shortening testing time and improving efficiency.

[0005] Furthermore, since this device measures mass loss based on a timed measurement, the accuracy of the test results requires that the specimen remain in a stable rotation state for the specified test time. However, as the textile specimen is agitated within the chamber, it can easily become stuck in a certain position, preventing proper rotation and requiring manual intervention. This compromises both work efficiency and the accuracy of the test results. Therefore, the structure of this device prevents the specimen from becoming stuck in a specific position within the chamber, reducing manual intervention and ensuring accurate test results.

[0006] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0007] The present invention provides an automated testing device for wear and tear of textile materials, comprising a chamber, a rotating device, a control device, a sensor, and an alarm device. The chamber is cylindrical, with abrasive material disposed on its interior surface, and a door disposed on its front side. The rotating device is rotatably disposed within the chamber and comprises a rotating position and a stirring element, the rotating position being located at its center, and a plurality of stirring elements being evenly distributed around the rotating position. A first switch is provided for controlling the opening and closing of the device.

[0008] Optionally, the part of the stirring rod near the rotating position is the first part, the first part is a rectangle, the length of the rectangle is 20 mm, and the width is 10 mm, and the part far from the rotating position is the second part, the second part includes an upper line and a lower line, and the upper line and the lower line are both arcs.

[0009] Optionally, the inner diameter of the chamber is 140 mm and the depth is 70 mm; the total length of the rotating device is 114 mm, and there are two stirring rods 3.

[0010] Optionally, a circular rear plate is provided on the rear of the cabin, a circular additional rear plate is provided on the circular rear plate, a plurality of sensors are respectively provided in the first quadrant, the second quadrant, the third quadrant and the fourth quadrant where the circular additional rear plate is located, and the diameter of the circular additional rear plate is smaller than the diameter of the rear plate; air belts are respectively provided on the upper left arc, the upper right arc, the lower left arc and the lower right arc of the circular rear plate, and a plurality of jet holes are provided on the air belts; a circular front plate is provided on the hatch, a circular additional front plate is provided on the circular front plate, a plurality of sensors are respectively provided in the first quadrant, the second quadrant, the third quadrant and the fourth quadrant where the circular additional front plate is located, and the diameter of the circular additional front plate is smaller than the diameter of the front plate; air belts are respectively provided on the upper left arc, the upper right arc, the lower left arc and the lower right arc of the circular front plate, and a plurality of jet holes are provided on the air belts.

[0011] Optionally, the direction of the airflow generated at the midpoint of the air belt is 30-35 degrees to the circular rear plate and the circular front plate respectively.

[0012] Optionally, the air belts are all arc-shaped, the curvature of which is consistent with the curvature of the circular front plate and the circular rear plate, and are centered in a quarter of the arc.

[0013] Optionally, the arc-shaped portion of the air belt has a length of 60-70 mm.

[0014] Optionally, a pre-test is performed on the test sample, and the control device records the data during the pre-test. According to the required accuracy, multiple values ​​of the corresponding sensors before and after the wall are extracted, and the average value is used as the threshold F i The control device analyzes and obtains the shortest working time T of the air belt that can make the sample escape from the wall-adhering state.

[0015] During the formal test, the sensor data is transmitted to the control device, which calculates and analyzes the data in the four quadrants to obtain the Q of each quadrant. i The specific value N i , if N i The value is greater than the threshold F i , then the corresponding quadrant Q i The air belt is started, and if necessary, multiple air belts are started at the same time.

[0016] If (N i -F i ) / F i ≥20%, an alarm will be issued and the machine will be shut down;

[0017] If 10%≤(N i -F i ) / F i <20%, then the pressure is P1 (unit is pa), and the time is T;

[0018] If 5%≤(N i -F i ) / F i <10%, then the pressure is P2 (unit is pa), and the time is T;

[0019] If (N i -F i ) / F i ≤5%, then the pressure is P3 (unit is pa), and the time is T;

[0020] For samples with a unit area mass (g / ㎡) ≥ 300, P1 is 0.34Pa, P2 is 0.32Pa, and P3 is 0.30Pa; for samples with a unit area mass (g / ㎡) 200≤m<300, P1 is 0.32Pa, P2 is 0.30Pa, and P3 is 0.28Pa; for samples with a unit area mass (g / ㎡)m<200, P1 is 0.28Pa, and P2 and P3 are both 0.25Pa.

[0021] Optionally, the rotating device can be detachably mounted.

[0022] Optionally, a locking device is provided on the rotating portion 2. The locking device may be an axial locking ring or an axial plug-in locking device.

[0023] Optionally, a method for using the automated test device for wear and tear of textile materials comprises the following steps: Step 1, turning on the automated test device for wear and tear of textile materials, weighing the unit area weight of the sample, cutting the sample into the required square sample, performing a preliminary test, and setting the threshold F iand the shortest time T for confirmation; Step 2, conduct a formal test, weigh the weight of the square sample before the test, open the cabin door, install the rotating device and abrasive, put the sample into cabin 1, close the cabin door, turn on the second switch, start timing, and ensure that the square sample rotates normally in the cabin during the test on the basis of the control device controlling the operation of the air belt; Step 3, after the set time is reached, take out the square sample and weigh the mass of the square sample after the test; Step 4, repeat the above steps and calculate the wear and consumption performance of the square sample.

[0024] The beneficial effects of the present invention are:

[0025] This device incorporates a rotating device within a chamber and abrasive materials placed on the chamber's inner wall. A textile sample is placed within the chamber and, through the rotation of the rotating device, abrades the sample under the action of the abrasive. The wear and tear performance of the textile sample is then measured by measuring the mass loss over a specified period of time. The speed of the rotating device is adjustable, enabling tests to be completed quickly for textile materials of varying unit area mass and style, shortening test time and improving test efficiency.

[0026] Because this test method is completed in a short period of time, the test process generally requires observation to prevent the specimen from rotating abnormally during the test period. If this is not discovered in time and counted as normal, it will directly affect the test results. In this case, manual intervention is required to adjust the rotation, which not only affects work efficiency but also affects the accuracy of the test results. Therefore, the setting of this device can prevent the specimen from sticking in a certain position in the chamber, reduce manual intervention, and ensure the accuracy of the test results.

[0027] The present invention obtains relevant data of the sensor through a control device, first obtains relevant data before and after wall adhesion through a preliminary test, extracts the threshold and time corresponding to the sample, and uses the above data as a comparison basis to perform full monitoring and calculation during the test. When an early warning is given that wall adhesion may occur, the air belt in the area is started in time to avoid restarting after wall adhesion, which results in a shorter effective test time and improves the test accuracy.

[0028] As for the air belt pressure, if the pressure is too low, the effect will be small, and it will only delay the time of the first adhesion to the wall, but it cannot guarantee normal rotation within the test time; if the pressure is too high, the sample will be directly blown to a certain place to adhere to the wall, which is not conducive to the test. Therefore, the position, length, pressure and direction of the air belt of the present invention are adapted to the test materials, structure, etc. of the present invention.

[0029] The present invention is based on the fact that textile materials have a wide range of uses and large differences in gram weight. The present invention sets different air belt pressure parameters according to different gram weight ranges, and is as scientific and energy-saving as possible while ensuring normal rotation during the test.

[0030] The setting of the air belt of this device, the position and pressure of the air belt, the direction of the airflow, the selection of the threshold value, and the pressure value are all coordinated with the cabin of the present invention, the size of the rotating device, the shape and gram weight of the sample material, etc., which overall achieves the effect of improving the test accuracy.

[0031] Since the rotating device has a high speed, it is easy to cause the rotating device to loosen, which affects the experimental results and easily causes safety hazards. Therefore, a locking device is provided on the rotating position. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A front view of a cabin according to an embodiment of the present invention;

[0033] Figure 2 It is also a front view of an embodiment of the present invention;

[0034] 1-cabin; 2-rotation position; 3-stirring bar; 8-circular rear plate; 9-circular additional rear plate; 10-upper left arc; 11-upper right arc; 12-lower left arc; 13-lower right arc. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0036] The present invention provides an automated wear and tear testing device for textile materials, comprising a chamber 1, a rotating device, a control device, a sensor, and an alarm device. The chamber 1 is cylindrical, with abrasive material disposed on its interior surface and a door disposed on its front side. The rotating device is rotatably disposed within the chamber and comprises a rotating position 2 and a stirring element 3, with the rotating position 2 located at its center. A plurality of stirring elements 3 are evenly distributed around the rotating position 2. A first switch is provided for controlling the opening and closing of the device.

[0037] In another embodiment of the present invention, the part of the stirring rod 3 near the rotation position 2 is a first part 4, which is a rectangle with a length of 20 mm and a width of 10 mm. The part far from the rotation position 2 is a second part 5, which includes an upper line 6 and a lower line 7, and both the upper line 6 and the lower line 7 are arcs.

[0038] In another embodiment of the present invention, the inner diameter of the chamber 1 is 140 mm and the depth is 70 mm; the total length of the rotating device is 114 mm, and there are two stirring rods 3.

[0039] In another embodiment of the present invention, a circular rear plate 8 is provided on the rear of the cabin 1, a circular additional rear plate 9 is provided on the circular rear plate 8, a plurality of sensors are respectively provided in the first quadrant, the second quadrant, the third quadrant and the fourth quadrant where the circular additional rear plate is located, and the diameter of the circular additional rear plate 9 is smaller than the diameter of the rear plate 8; air belts are respectively provided on the upper left arc 10, the upper right arc 11, the lower left arc 12 and the lower right arc 13 of the circular rear plate, and a plurality of jet holes are provided on the air belts; a circular front plate is provided on the hatch, a circular additional front plate is provided on the circular front plate, a plurality of sensors are respectively provided in the first quadrant, the second quadrant, the third quadrant and the fourth quadrant where the circular additional front plate is located, and the diameter of the circular additional front plate is smaller than the diameter of the front plate; air belts are respectively provided on the upper left arc, the upper right arc, the lower left arc and the lower right arc of the circular front plate, and a plurality of jet holes are provided on the air belts.

[0040] In another embodiment of the present invention, the direction of the airflow generated at the midpoint of the air belt is 30-35 degrees to the circular rear plate and the circular front plate respectively.

[0041] In another embodiment of the present invention, the air belts are all arc-shaped, the curvature of the air belts is consistent with the curvature of the circular front plate and the circular rear plate, and are centered in a quarter of the arc.

[0042] In another embodiment of the present invention, the arc-shaped portion of the air belt has a length of 60-70 mm.

[0043] In another embodiment of the present invention, a pre-test is performed on the test sample, and the control device records the data during the pre-test process. According to the required accuracy, multiple values ​​of the corresponding sensors before and after the wall are extracted, and the average value is used as the threshold F i The control device analyzes and obtains the shortest working time T of the air belt that can make the sample escape from the wall-adhering state.

[0044] During the formal test, the sensor data is transmitted to the control device, which calculates and analyzes the data in the four quadrants to obtain the Q of each quadrant. i The specific value N i , if N i The value is greater than the threshold F i , then the corresponding quadrant Q i The air belt is started, and if necessary, multiple air belts are started at the same time.

[0045] If (N i -F i ) / F i ≥20%, an alarm will be issued and the machine will be shut down;

[0046] If 10%≤(N i -F i ) / F i <20%, then the pressure is P1 (unit is pa), and the time is T;

[0047] If 5%≤(N i -F i ) / F i <10%, then the pressure is P2 (unit is pa), and the time is T;

[0048] If (N i -F i ) / F i ≤5%, then the pressure is P3 (unit is pa), and the time is T;

[0049] For samples with a unit area mass (g / ㎡) ≥ 300, P1 is 0.34Pa, P2 is 0.32Pa, and P3 is 0.30Pa; for samples with a unit area mass (g / ㎡) 200≤m<300, P1 is 0.32Pa, P2 is 0.30Pa, and P3 is 0.28Pa; for samples with a unit area mass (g / ㎡)m<200, P1 is 0.28Pa, and P2 and P3 are both 0.25Pa.

[0050] In another embodiment of the present invention, the rotating device is detachably mounted.

[0051] In another embodiment of the present invention, a locking device is provided on the rotating portion 2. The locking device can be an axial locking ring or an axial plug-in locking device.

[0052] Another embodiment of the present invention provides a method for using the automated test device for wear and tear of textile materials, comprising the following steps: Step 1: starting the automated test device for wear and tear of textile materials, weighing the unit area weight of the sample, cutting the sample into the required square sample, performing a preliminary test, and adjusting the threshold F. i and the shortest time T for confirmation; Step 2, conduct a formal test, weigh the weight of the square sample before the test, open the cabin door, install the rotating device and abrasive, put the sample into cabin 1, close the cabin door, turn on the second switch, start timing, and ensure that the square sample rotates normally in the cabin during the test on the basis of the control device controlling the operation of the air belt; Step 3, after the set time is reached, take out the square sample and weigh the mass of the square sample after the test; Step 4, repeat the above steps and calculate the wear and consumption performance of the square sample.

[0053] The present invention is the result of a lot of creative work to obtain the structure and specific parameters of the device, and the research and development process will not be described in detail here. The verification results are also based on a large number of samples and variables, such as verification of no air belt, different positions of the air belt and different pressures, the direction of the air flow, the selection of the threshold, the size of the pressure, etc. Only representative variables and results are briefly described here. The test samples involve multiple samples in 4 different gram weight ranges, where there are multiple samples in each gram weight range. This table describes the average time (in seconds) of the samples in each gram weight range.

[0054] The results show that the setting of the air belt of the present invention, the position and pressure of the air belt, the direction of the airflow, the selection of the threshold value, and the pressure value are all coordinated with the size of the cabin and the rotating device of the present invention, the shape and gram weight of the sample material, etc., and the wall adhesion warning is achieved as a whole, the problem of wall adhesion during the test is solved, and the degree of automation and the accuracy of the test data are improved.

[0055]

[0056]

[0057] The above embodiments are only for illustrating the technical concept and features of the present invention. Its purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. It cannot be used to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automated wear and tear test device for textile materials, comprising a chamber (1), a rotating device, a control device, a sensor, and an alarm device; the chamber (1) is cylindrical, an inner surface of the chamber (1) is provided with abrasives, a front side of the chamber (1) is provided with a door, the rotating device is rotatably arranged in the chamber (1), the rotating device comprises a rotating position (2) and a stirring rod (3), the rotating position (2) is located at the center of the rotating device, and the stirring rods are evenly arranged around the rotating position (2); a first switch is provided for controlling the opening and closing of the device, The portion of the stirrer (3) near the rotating position (2) is the first portion, the first portion is a rectangle, the length of the rectangle is 20 mm, the width is 10 mm, and the portion far from the rotating position (2) is the second portion, the second portion includes an upper line and a lower line, both of which are arcs; the inner diameter of the chamber (1) is 140 mm and the depth is 70 mm; the total length of the rotating device is 114 mm, and there are two stirrers (3). A circular rear plate (8) is provided on the rear of the cabin (1), a circular additional rear plate (9) is provided on the circular rear plate (8), a plurality of sensors are provided in the first quadrant, the second quadrant, the third quadrant and the fourth quadrant where the circular additional rear plate is located, respectively, and the diameter of the circular additional rear plate (9) is smaller than the diameter of the circular rear plate (8); air belts are provided on the upper left arc (10), the upper right arc (11), the lower left arc (12) and the lower right arc (13) of the circular rear plate, respectively, and a plurality of jet holes are provided on the air belts; a circular front plate is provided on the hatch, a circular additional front plate is provided on the circular front plate, a plurality of sensors are provided in the first quadrant, the second quadrant, the third quadrant and the fourth quadrant where the circular additional front plate is located, respectively, and the diameter of the circular additional front plate is smaller than the diameter of the circular front plate; air belts are provided on the upper left arc, the upper right arc, the lower left arc and the lower right arc of the circular front plate, respectively, and a plurality of jet holes are provided on the air belts.

2. The automated wear and consumption testing device for textile materials as described in claim 1, wherein the direction of the airflow generated at the midpoint of the air belt is 30-35 degrees to the circular rear plate and the circular front plate respectively; the air belts are all arc-shaped, the curvature of the arc is consistent with the curvature of the circular front plate and the circular rear plate, and is centered in a quarter of the arc; the length of the arc portion of the air belt is 60-70 mm.

3. The automated wear and tear testing device for textile materials according to claim 2, wherein the control device records the data during the preliminary test, extracts multiple values ​​of the corresponding sensors before and after the wall according to the required accuracy, and uses the average value as the threshold F i , the shortest time T of the air belt that can make the sample escape from the wall-adhering state is obtained through analysis of the control device; Through formal testing, the sensor data is transmitted to the control device, which calculates and analyzes the data in the four quadrants to obtain the Q of each quadrant. i The specific value N i , if N i The value is greater than the threshold F i , then the corresponding quadrant Q i The gas belt is started, and multiple gas belts are started at the same time according to needs; If (N i -F i ) / F i ≥20%, an alarm will be issued and the machine will be shut down; If 10%≤(N i -F i ) / F i <20%, then the pressure is P1 (unit is pa), and the time is T; If 5%≤(N i -F i ) / F i <10%, then the pressure is P2 (unit is pa), and the time is T; If (N i -F i ) / F i ≤5%, then the pressure is P3 (unit is pa), and the time is T; in, For samples with a mass per unit area (g / m2) ≥ 300, P1 is 0.34 Pa, P2 is 0.32 Pa, and P3 is 0.30 Pa; for samples with a mass per unit area (g / m2) 200 ≤ m<300, P1 is 0.32 Pa, P2 is 0.30 Pa, and P3 is 0.28 Pa; for samples with a mass per unit area (g / m2) m<200, P1 is 0.28 Pa, and P2 and P3 are both 0.25 Pa; The rotating device is detachable and can be installed; A locking device is provided on the rotating position (2).

4. A method for using the automated wear and tear testing device for textile materials according to any one of claims 1 to 3, comprising the following steps: Step 1: Start the automated wear and tear test device for textile materials, weigh the unit area weight of the sample, and cut the sample into the required square sample, conduct a preliminary test, and set the threshold F i and the shortest time T for confirmation; Step 2, conduct a formal test, weigh the weight of the square sample before the test, open the cabin door, install the rotating device and the abrasive, put the sample into the cabin (1), close the cabin door, turn on the second switch, start timing, and ensure that the square sample rotates normally in the cabin during the test process on the basis of the control device controlling the operation of the air belt; Step 3, after the set time is reached, take out the square sample and weigh the mass of the square sample after the test; Step 4, repeat the above steps and calculate the wear and consumption performance of the square sample.

5. The automated wear and tear testing device for textile materials according to claim 1, characterized in that: The speed of the rotating device is adjustable.

6. The automated wear and tear testing device for textile materials according to claim 1, characterized in that: The hatch is made of transparent material.

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