Pneumatic wear consumption test device for textile material

Abstract

The invention discloses a pneumatic wear consumption test device for textile materials, which comprises a cabin and a rotating device in the cabin, vent holes are arranged at specific positions of a stirrer of the rotating device, an angle of 55 degrees is formed between the vent direction and the plane where the stirrer is located, the diameter of a vent nozzle is 1.2 mm, and the vent holes are communicated with the stirrer. Pressure intensity values matched with the textile materials in different unit surface mass ranges are set, when the fluctuation range of the force value displayed by the sensor is + / -1% and lasts for 1.0 s, the alarm device gives out alarm sound, by setting the parameters matched with the states of the cabin and the textile materials, the test time of a textile material abrasion consumption test is shortened, and the test efficiency is improved. And a locking device is arranged on the rotating position, so that the automation degree is improved, and the test precision is improved.

Description

Technical Field

[0001] The invention relates to the field of textile technology, in particular to a pneumatic consumption test 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 pneumatic wear and tear test device for textile materials of the present invention comprises a chamber and a rotating device, wherein the chamber is a cylinder, an inner surface of the chamber is provided with abrasives, and a front side of the chamber is provided with a chamber door. The rotating device is rotatably arranged in the chamber, and comprises a rotating position and a stirring rod, wherein 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 part of the stirrer near the rotation position is the first part, the first part is a rectangle, the length of the rectangle is 20 mm, the width is 10 mm, the part far from the rotation position is the second part, the second part includes an upper line and a lower line, the upper line and the lower line are arcs, the intersection of the upper line and the lower line is A, and the midpoint O of the width of the first part near the rotation position end is extended to one side to obtain an extended line OB, the intersection of the extended line OB and the dividing line between the first part and the second part is P, ∠APB is 23°, and the intersection of the extended line OB and the lower line 7 is the first intersection point M.

[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, the stirrer is provided with air diffusion holes, and the air diffusion holes can be used to diffuse air into the cabin.

[0010] Optionally, the air diffusion hole is arranged at the first intersection. The air diffusion hole can diffuse air in the cabin.

[0011] Optionally, a diffusion nozzle is provided on the diffusion hole, and the same diffusion nozzle diffuses a first gas and a second gas, the first gas and the second gas form an angle of 30 degrees, the second gas is close to the plane where the lower line 7 is located, and the second gas and the plane at the first intersection of the lower line 7 are 50 degrees.

[0012] Optionally, the total diameter of the diffuser nozzle is 1.2 mm, and the total pressure of the diffuser nozzle is 0.36 Pa.

[0013] Optionally, for samples with a mass per unit area (g / m2) ≥ 300, the total pressure of each diffuser nozzle is 0.36 Pa; for samples with a mass per unit area (g / m2) 200 ≤ m < 300, the total pressure of each diffuser nozzle is 0.34 Pa; for samples with a mass per unit area (g / m2) m < 200, the total pressure of each diffuser nozzle is 0.32 Pa.

[0014] Optionally, the device further comprises a control device, a sensor and an alarm device. The sensor is arranged on the stirring bar and / or the side wall.

[0015] Optionally, when the force value displayed by the sensor fluctuates within a range of ±1% and lasts for 1.0s, it indicates that the sample is rotating abnormally, such as being attached to a certain position, which affects the test results, and the alarm device sounds an alarm.

[0016] Optionally, the rotating device is detachably mounted.

[0017] Optionally, the method for using the pneumatic wear and consumption testing device for textile materials comprises the following steps: Step 1, turning on the pneumatic wear and consumption testing device for textile materials, weighing the unit area weight of the sample, and cutting the sample into the required square sample, weighing the weight of the square sample before the test, and setting the pressure of the air diffusion hole to a pressure corresponding to the unit area mass of the square sample; Step 2, opening the cabin door, installing the rotating device and the abrasive, placing the sample in the cabin, closing the cabin door, turning on the second switch, keeping the sample rotating under the action of the air diffusion nozzle of the rotating device, and starting timing; Step 3, after the set time is reached, taking out the square sample and weighing the mass of the square sample after the test; Step 4, repeating the above steps, and calculating the wear and consumption performance of the square sample.

[0018] Optionally, a locking device is provided on the rotating position.

[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] When the textile sample is stirred in the cabin, the sample is prone to sticking at a certain position, and the sample cannot rotate normally. At this time, manual intervention is required to move it, which affects both work efficiency and the accuracy of the test results. Therefore, the setting of this device can prevent the sample from sticking at a certain position in the cabin, reduce manual intervention, and ensure the accuracy of the test results.

[0021] Specifically, the positions of the air diffusion holes, the number of gas streams, the direction, the diameter, and the pressure settings of the device are all set in accordance with the specifications of the cabin, the structure of the rotating device, and the properties of the test sample. Overall, the test is completed in a short time and the test accuracy is improved.

[0022] For the pressure of the air diffuser, 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, based on the wide application of textile materials and the large difference in gram weight, the present invention sets different air diffuser pressures according to different gram weight ranges, and is as scientific and energy-saving as possible while ensuring normal rotation during the test.

[0023] 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. Therefore, the entire test process requires observation by test personnel, and the degree of automation is low, which affects work efficiency. This device is equipped with a sensor and an alarm device. When the force value of the sensor fluctuates within a limited range and lasts for a period of time, it indicates that the sample is in an abnormal rotation state, and an alarm is issued in time, which improves the degree of automation and work efficiency.

[0024] Partial wall-adherence can be automatically restored in a short time. Therefore, the sensor will alarm only when the force value fluctuation range is within ±1% and is maintained for 1.0s, which is conducive to the test.

[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 A side view of a stirring bar according to an embodiment of the present invention; 1-cabin; 2-rotating position; 3-stirring bar; 4-first part; 5-second part; 6-upper line; 7-lower line. 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 pneumatic wear and tear test device for textile materials of the present invention comprises a chamber 1 and a rotating device, wherein the chamber 1 is a cylinder, an inner surface of the chamber is provided with abrasives, and a door is provided on the front side of the chamber. The rotating device is rotatably arranged in the chamber, and comprises a rotating position 2 and a stirring rod 3, wherein 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 for controlling the opening and closing of the device.

[0029] In another embodiment of the present invention, the portion of the stirring bar 3 near the rotation position 2 is a first portion 4, the first portion is a rectangle, the length of the rectangle is 20 mm, and the width is 10 mm, the portion far from the rotation position 2 is a second portion 5, the second portion 5 includes an upper line 6 and a lower line 7, the upper line 6 and the lower line 7 are both arcs, the intersection of the upper line 6 and the lower line 7 is A, and the midpoint O of the width of the first portion near the rotation position 2 end is extended to one side to obtain an extended line OB, the intersection of the extended line OB and the dividing line between the first portion and the second portion is P, ∠APB is 23°, and the intersection of the extended line OB and the lower line 7 is the first intersection.

[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, the stirrer 3 is provided with air diffusion holes, and the air diffusion holes can be used to diffuse air into the cabin.

[0032] In another embodiment of the present invention, the air diffusion hole is arranged at the first intersection. The air diffusion hole can diffuse air in the cabin.

[0033] In another embodiment of the present invention, a diffusion nozzle is provided on the diffusion hole, and the same diffusion nozzle diffuses a first gas and a second gas, the first gas and the second gas form an angle of 30 degrees, the second gas is close to the plane where the lower line 7 is located, and the second gas and the plane at the first intersection of the lower line 7 are 50 degrees.

[0034] In another embodiment of the present invention, the total diameter of the diffuser nozzle is 1.2 mm, and the total pressure of the diffuser nozzle is 0.36 Pa.

[0035] In another embodiment of the present invention, for a sample with a unit area mass (g / m2) ≥ 300, the total pressure of each diffuser nozzle is 0.36 Pa; for a sample with a unit area mass (g / m2) 200≤m<300, the total pressure of each diffuser nozzle is 0.34 Pa; for a sample with a unit area mass (g / m2) m<200, the total pressure of each diffuser nozzle is 0.32 Pa.

[0036] Another embodiment of the present invention further comprises a control device, a sensor, and an alarm device. The sensor is arranged on the stirring bar and / or the side wall.

[0037] In another embodiment of the present invention, when the force value displayed by the sensor fluctuates within a range of ±1% and lasts for 1.0s, it indicates that the sample is rotating abnormally, such as being attached to a certain position, which affects the experimental results, and the alarm device emits an alarm sound.

[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 position 2, and 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 pneumatic wear and consumption testing device for textile materials, comprising the following steps: Step 1, start the pneumatic wear and consumption testing device for textile materials, weigh the unit area weight of the sample, cut the sample into the required square sample, weigh the weight of the square sample before the test, and set the pressure of the air diffusion hole to a pressure corresponding to the unit area mass of the square sample; Step 2, open the cabin door, install the rotating device and the abrasive, place the sample into the cabin 1, close the cabin door, turn on the second switch, keep the sample rotating under the action of the air diffusion nozzle of the rotating device, and start timing; 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. For example, no diffuser holes are set, and diffuser holes are set at multiple different positions, multiple different angles, and multiple different pressures. 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] The results show that the specific settings of the air diffusion holes and the air diffusion nozzle pressure of the present invention are 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., which achieves the overall effect of reducing the test time and improving the accuracy of the test data.

[0043] Sample weight m (g / ㎡) First wall adhesion time without diffuse pores (s) The first wall adhesion time of the air diffusion hole set at point A (s) The air diffusion hole is located in the middle of the second part. The first wall adhesion time (s) The first gas and the second gas are both roughly perpendicular to the second part of the plane. The first wall adhesion time (s) The total pressure of the same diffuser nozzle is 0.5pa. The first wall adhesion time (s) First wall-attaching time of the diffused pores of the present invention (s) ≥300 180 270 289 280 295 ＞300 200≤m＜300 174 255 274 274 ＞300 ＞300 100≤m＜200 150 200 198 187 288 ＞300 m＜100 100 180 175 190 283 ＞300 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. A pneumatic wear and tear test device for textile materials, comprising a chamber (1), a rotating device, a control device, a sensor, an alarm device, a first switch, and a second switch, wherein the chamber (1) is a cylinder, an inner surface of the chamber (1) is provided with abrasives, a front side of the chamber is provided with a door, and the rotating device is rotatably arranged in the chamber (1), characterized in that: The rotating device comprises a rotating position (2) and a stirring rod (3), wherein the rotating position (2) is located at the center of the rotating device, and two stirring rods (3) are provided and are evenly arranged on the rotating position (2); the first switch is used to control the opening and closing of the rotating device, and a locking device is provided on the rotating position (2).

2. A pneumatic wear and consumption test device for textile materials as claimed in claim 1, wherein the portion of the stirring bar (3) near the rotating position (2) is the first portion (4), the first portion (4) is a rectangle, the length of the rectangle is 20 mm, and the width is 10 mm, the portion of the stirring bar (3) 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), the upper line (6) and the lower line (7) are both arcs, the intersection point of the upper line (6) and the lower line (7) is A, and the midpoint O of the width of the first portion (4) near the rotating position (2) is extended to one side to obtain an extended line OB, the intersection point of the extended line OB and the boundary line between the first portion (4) and the second portion (5) is P, ∠APB is 23°, and the intersection point of the extended line OB with the lower line (7) is the first intersection point M.

3. A pneumatic wear and tear test device for textile materials as described in claim 2, wherein 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 the stirring rod (3) is provided with air diffusion holes, and the air diffusion holes are arranged at the first intersection M.

4. A pneumatic wear and consumption testing device for textile materials as described in claim 3, wherein a diffuser nozzle is provided on the diffuser hole, and the same diffuser nozzle diffuses a first stream of gas and a second stream of gas, the first stream of gas and the second stream of gas form an angle of 30 degrees, the second stream of gas is close to the plane where the lower line 7 is located, and the second stream of gas and the plane at the first intersection of the lower line 7 are 50 degrees; the second switch is used to control the opening and closing of the diffuser nozzle; the total diameter of the same diffuser nozzle is 1.2 mm.

5. A pneumatic wear and consumption testing device for textile materials as described in claim 4, for samples with a unit area mass (g / m2) ≥ 300, the total pressure of the same diffuser nozzle is 0.36 Pa; for samples with a unit area mass (g / m2) 200≤m<300, the total pressure of the same diffuser nozzle is 0.34 Pa; for samples with a unit area mass (g / m2) m<200, the total pressure of the same diffuser nozzle is 0.32 Pa.

6. A pneumatic wear and tear test device for textile materials as described in claim 5, wherein the sensor is arranged on the side wall of the stirrer and / or the chamber (1); when the force value displayed by the sensor fluctuates within a range of ±1% and lasts for 1.0s, the alarm device emits an alarm sound.

7. A method for using a pneumatic wear and tear test device for textile materials according to any one of claims 1 to 6, comprising the following steps: Step 1, start the pneumatic wear and consumption test device for textile materials, weigh the unit area weight of the sample, cut the sample into the required square sample, weigh the weight of the square sample before the test, and set the pressure of the air diffusion hole to a pressure corresponding to the unit area mass of the square sample; Step 2, open the cabin door, install the rotating device and the abrasive, put the sample into the cabin, close the cabin door, turn on the second switch, keep the sample rotating under the action of the air diffusion nozzle of the rotating device, and start timing; 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.

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

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

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