Automatic abrasion consumption testing device for textile materials

Abstract

The invention discloses an automatic wear consumption testing device for textile materials, which comprises a cabin and a rotating device in the cabin, and is characterized in that a plurality of arc-shaped air belts are arranged on the side edges of circular front and rear side plates of the cabin, circular additional front and rear plates are arranged on the circular front and rear plates, and a plurality of sensors are arranged in each quadrant of the circular additional front and rear plates; according to the threshold value and the shortest time of a pre-test, the control device carries out automatic calculation, through comparison with the threshold value sum and timely early warning, air blowing at a special angle is carried out on a corresponding air zone which is predicted to be about to adhere to the wall, and air blowing is carried out according to the specific pressure intensity set according to the gram weight, so that the situation of wall adhesion prevention in the test process is realized, and the test efficiency is improved. And a locking device is arranged on the rotating position, so that the automation degree of the test is improved, and the test precision is improved.

Description

Technical Field

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

[0002] At present, the wear and tear performance of textile materials is one of the main mechanical properties of textile materials, and its wear and tear performance directly affects the performance and use of textile materials. At present, the main test method for wear and tear performance is to contact the textile material with abrasives for wear testing, and to evaluate the wear and tear performance of textile materials through appearance evaluation or mass loss methods.

[0003] However, the test time of the existing test equipment is long, which affects the test efficiency. If the friction of the abrasive and the weight of the test block are increased, although the test time can be reduced, it is easy to wear through the textile material when the number of wear tests is small, thus causing the test to be invalid. Therefore, frequent checks are required during the test, the degree of automation is low, time-consuming and labor-intensive, and the number of invalid tests is easily increased, affecting the test accuracy and efficiency. Summary of the invention

[0004] In order to overcome the above shortcomings, the device sets a rotating device in the cabin and sets abrasives on the inner wall of the cabin, puts the textile sample in the cabin, and wears the textile sample under the action of the abrasives through the rotation of the rotating device. Finally, the wear and consumption performance of the textile sample is tested through the mass loss value within a certain period of time. The speed of the rotating device of the device is adjustable, and the test can be completed in a short time for textile materials with different unit area mass and style, thereby shortening the test time and improving the test efficiency.

[0005] At the same time, since the principle of this device is to test mass loss according to the timing time, in order to ensure the accuracy of the test results, it is necessary to ensure that the sample should maintain a normal rotation state within the specified test time. However, when the textile sample is stirred in the cabin, the sample is easily stuck to a certain position. At this time, the sample cannot rotate normally and requires manual intervention, which affects both work efficiency and the accuracy of the test results. Therefore, the structural setting of this device can prevent the sample from sticking to a certain position in the cabin, reduce manual intervention, and ensure the accuracy of the test results.

[0006] In order to achieve the above purpose, the technical solution adopted by the present invention is: The wear and tear automated testing device for textile materials of the present invention comprises a cabin, a rotating device, a control device, a sensor, and an alarm device; the cabin is a cylinder, the inner surface of the cabin is provided with abrasives, and the front side of the cabin is provided with a cabin door. The rotating device is rotatably arranged in the cabin, and the rotating device comprises a rotating position and a stirring rod, the rotating position is located at the center of the rotating device, and the stirring rods are multiple and evenly arranged around the rotating position; a first switch is provided for controlling the opening and closing of the device.

[0007] Optionally, the portion of the stirring rod near the rotating position is a first portion, the first portion is a rectangle, the length of the rectangle is 20 mm, and the width is 10 mm, and the portion far from the rotating position is a second portion, the second portion includes an upper line and a lower line, and the upper line and the lower line are both arcs.

[0008] 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.

[0009] 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 cabin door, 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.

[0010] 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.

[0011] 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.

[0012] Optionally, the arc-shaped portion of the air belt has a length of 60-70 mm.

[0013] Optionally, a pre-test is performed on the test sample, and the control device records the data during the pre-test. Multiple values ​​of the corresponding sensors before and after the wall are extracted according to the required accuracy, 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.

[0014] 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 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 can be started simultaneously.

[0015] If (N i -F i ) / F i ≥20%, an alarm will be issued and the machine will be shut down for processing; If 10%≤(N i -F i ) / F i <20%, then the pressure is P1 (in pa) and the time is T; If 5%≤(N i -F i ) / F i <10%, then the pressure is P2 (in pa) and the time is T; If (N i -F i ) / F i ≤5%, then the pressure is P3 (in pa) and the time is T; 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.

[0016] Optionally, the rotating device can be detachably mounted.

[0017] Optionally, a locking device is provided on the rotating position 2. The locking device may be an axial locking ring or an axial plug-in locking device.

[0018] Optionally, a method for using the automated test device for wear and consumption of textile materials comprises the following steps: Step 1, starting the automated test device for wear and consumption of textile materials, weighing the unit area weight of the sample, and cutting the sample into a 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 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 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.

[0019] The beneficial effects of the present invention are: The device sets a rotating device in the cabin and sets abrasives on the inner wall of the cabin, puts the textile sample in the cabin, and wears the textile sample under the action of the abrasives through the rotation of the rotating device. Finally, the wear and consumption performance of the textile sample is tested through the mass loss value within a certain period of time. The speed of the rotating device of the device is adjustable, and the test can be completed in a short time for textile materials with different unit area mass and style, thus shortening the test time and improving the test efficiency.

[0020] Since this test method is completed in a short time, it is generally necessary to observe the test process to avoid the situation where the sample does not rotate normally during the test period. If it cannot be discovered in time and included in the normal value of the test, it will directly affect the test results, and manual intervention is required at this time, which affects both work efficiency and the accuracy of the test results. Therefore, the setting of this device can prevent the sample from sticking to a certain position in the cabin, reduce manual intervention, and ensure the accuracy of the test results.

[0021] 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-process monitoring and calculation during the test. When a 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 would shorten the effective time of the test and improve the test accuracy.

[0022] As for the air belt pressure, if the pressure is too small, 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.

[0023] 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.

[0024] The setting of the air belt of the 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 achieves the overall effect of improving the test accuracy.

[0025] Since the rotating device has a relatively high speed, it is easy for the rotating device to become loose, which not only affects the experimental results but also easily causes potential safety hazards. Therefore, a locking device is provided on the rotating position. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A front view of a cabin according to an embodiment of the present invention; Figure 2 It is also a front view of an embodiment of the present invention; 1-cabin; 2-rotation position; 3-stirring bar; 4-first part; 5-second part; 6-upper line; 7-lower line; 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

[0027] The preferred embodiments of the present invention are described in detail below in conjunction with 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 definite definition of the protection scope of the present invention.

[0028] The wear and tear automated testing device for textile materials of the present invention comprises a chamber 1, a rotating device, a control device, a sensor, and an alarm device; the chamber 1 is a cylinder, the inner surface of the chamber is provided with abrasives, and the front side of the chamber is provided with a chamber door. The rotating device is rotatably arranged in the chamber, and 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 rod 3 is multiple and evenly arranged around the rotating position 2; a first switch is provided to control the opening and closing of the device.

[0029] In another embodiment of the present invention, the portion of the stirring rod 3 near the rotating position 2 is a first portion 4, which is a rectangle with a length of 20 mm and a width of 10 mm, and the portion far from the rotating position 2 is a second portion 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] In another embodiment of the present invention, 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.

[0034] In another embodiment of the present invention, the arc-shaped portion of the air belt has a length of 60-70 mm.

[0035] 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, and extracts multiple values ​​of the corresponding sensors before and after the wall according to the required accuracy, 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.

[0036] 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 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 can be started simultaneously.

[0037] If (N i -F i ) / F i ≥20%, an alarm will be issued and the machine will be shut down for processing; If 10%≤(N i -F i ) / F i <20%, then the pressure is P1 (in pa) and the time is T; If 5%≤(N i -F i ) / F i <10%, then the pressure is P2 (in pa) and the time is T; If (N i -F i ) / F i ≤5%, then the pressure is P3 (in pa) and the time is T; 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.

[0038] In another embodiment of the present invention, the rotating device is detachably mounted.

[0039] In another embodiment of the present invention, 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.

[0040] Another embodiment of the present invention provides a method for using the automated test device for wear and consumption of textile materials, comprising the following steps: Step 1, starting the automated test device for wear and consumption of textile materials, weighing the unit area weight of the sample, and cutting the sample into a 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 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 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.

[0041] The structure and specific parameters of the device of the present invention are obtained through a lot of creative work, and the research and development process will not be repeated 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 air flow, the selection of thresholds, the size of pressure, etc. Only representative variables and results are briefly described here. The test samples involve multiple samples in 4 different gram weight ranges, and each gram weight range has multiple samples. This table is described with the average time (in seconds) of the samples in each gram weight range.

[0042] As a result, the setting of the air belt, the position and pressure of the air belt, the direction of the airflow, the selection of the threshold value, and the value of the pressure of the present invention 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. The above implementation modes are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope 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 a cylinder, an inner surface of the chamber (1) is provided with abrasives, and a door is provided on the front side of the chamber (1). 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 rod (3) is in plurality and is evenly arranged around the rotating position (2); a first switch is provided for controlling the opening and closing of the device.

2. The automated wear and consumption testing device for textile materials as claimed in claim 1, wherein the portion of the stirring bar (3) close to the rotating position (2) is the first portion (4), the first portion (4) 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 (5), the second portion (5) includes an upper line (6) and a lower line (7), 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 stirring bars (3).

3. The wear and consumption automated testing device for textile materials as claimed in claim 2, wherein a circular rear plate (8) is arranged on the rear of the chamber (1), a circular additional rear plate (9) is arranged on the circular rear plate (8), a plurality of sensors are arranged 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 rear plate (8); air belts are arranged 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 arranged on the air belts; a circular front plate is arranged on the door, a circular additional front plate is arranged on the circular front plate, a plurality of sensors are arranged 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 front plate; air belts are arranged 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 arranged on the air belts.

4. According to the automated wear and consumption testing device for textile materials as described in claim 3, the direction of the air flow generated at the midpoint of the air belt is 30-35 degrees to the circular back plate and the circular front plate respectively; the air belts are all arc-shaped, the arc is consistent with the arc of the circular front plate and the circular back plate, and is centered in a quarter of the arc; the length of the arc portion of the air belt is 60-70mm.

5. The wear and tear automated testing device for textile materials as claimed in claim 4, 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 the average value is used as the threshold value 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 tests, the data from the sensors are transmitted to the control device, which calculates and analyzes the data in the four quadrants to obtain the Q 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 can be started simultaneously as needed; If (N i -F i ) / F i ≥20%, an alarm will be issued and the machine will be shut down for processing; If 10%≤(N i -F i ) / F i <20%, then the pressure is P1 (in pa) and the time is T; If 5%≤(N i -F i ) / F i <10%, then the pressure is P2 (in pa) and the time is T; If (N i -F i ) / F i ≤5%, then the pressure is P3 (in pa) and the time is T; in, 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; The rotating device can be detachably installed; A locking device is provided on the rotating position (2).

6. A method for using the automated wear and tear test device for textile materials according to any one of claims 1 to 5, comprising the following steps: Step 1: Turn on the automated wear and tear test device for textile materials, weigh the unit area weight of the sample, 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 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.

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

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

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