A sock performance detection device and a detection method

Abstract

The present invention provides a sock performance detection device and a detection method. By using a pneumatic multi-arm dilatometer, the bearing pressure on multiple unit areas of the sock can be simultaneously tested, and then the corresponding average bearing force and the discrete distribution of the bearing pressure can be obtained, so as to achieve a more accurate and comprehensive measurement of the bearing performance of the sock. On this basis, a detection method that can truly, effectively, quickly and accurately reflect the usability and wear resistance of the sock is provided, providing technical services for production enterprises in the R & D and production links, and providing a unified detection method for major detection institutions, thereby avoiding test errors caused by inconsistent detection methods and the like.

Description

Technical Field

[0001] The present invention relates to the new technical field of spinning, and specifically relates to a sock performance detection device and a detection method. Background Art

[0002] Socks, like clothing, are daily necessities and account for a very large proportion in people's clothing consumption. With the continuous improvement of sock production technology, various functional socks such as antibacterial, moisture-absorbing and quick-drying, and anti-slip are constantly introduced to attract consumers. However, the most important usability and durability aspects of socks are still the aspects that consumers have always been most concerned about.

[0003] Due to the huge sock consumption market and the relatively low production and processing threshold, a large number of production enterprises have continuously transformed or expanded sock processing and production. However, due to the uneven equipment and technical capabilities of production enterprises, there are also significant differences in the quality of the produced socks. Consumers cannot accurately distinguish the usability and durability characteristics of socks when purchasing, which has a greater impact on consumers' interests. How to accurately and quickly provide rapid and accurate test results for major production enterprises is the top priority for us as a third-party testing institution.

[0004] The usability and durability of socks, as the name implies, refer to the fit of socks when worn and whether they will have holes, snagging, etc. when worn. These two aspects need to be comprehensively evaluated to accurately evaluate the performance of socks. There are many detection standards for socks, such as FZ / T 73001-2016 "Socks", FZ / T73055-2016 "Non-run Socks", FZ / T73037-2019 "Knitted Sports Socks", etc. Among the detection parameters of each product standard, the main detected parameters are fiber content, color fastness, formaldehyde, etc. Only in FZ / T73037-2019 "Knitted Sports Socks" is the bursting strength, a durability parameter, detected, while the detection parameters of the usability and durability aspects that consumers really care about are not or rarely mentioned. Now, major testing institutions and production enterprises have also developed detection methods for the usability and durability aspects of socks, but the inconsistency of instruments and detection processes ultimately leads to huge differences in test results.

[0005] In response to this, the present invention provides a sock performance detection device and a detection method. By using a pneumatic multi-arm dilatometer, the bearing pressure on multiple unit areas of socks can be simultaneously tested, and then the corresponding average bearing force and the discrete distribution of bearing pressure can be obtained, so as to achieve a more accurate and comprehensive measurement of the bearing performance of socks. Based on this, a detection method that can truly, effectively, quickly and accurately reflect the usability and wear resistance of socks is provided, providing technical services for production enterprises in the R & D and production links, and providing a unified detection method for major testing institutions, thus avoiding test errors caused by inconsistencies in detection methods, etc. Summary of the Invention

[0006] The object of the present invention is to provide a sock performance detection device and a detection method, which can simultaneously test the bearing pressures on multiple unit areas of socks by using a pneumatic multi-arm dilatometer, and provide a detection method that can truly, effectively, quickly and accurately reflect the usability and wear resistance of socks, so as to provide a unified method for the detection of the comprehensive performance of socks and avoid test errors caused by inconsistent detection methods.

[0007] In order to achieve the above object, the present invention relates to a sock performance detection device, which includes a detection device and a pneumatic device. The detection device includes a detection head, and the detection head is a solid cylindrical structure. The detection head is placed vertically, and the detection head is made of steel or iron. A connection port is opened on the lower side surface of the detection head. The connection port is a cylindrical structure. The lower end of the connection port is located on the lower circular surface of the detection head. There is a certain distance between the upper end of the connection port and the upper circular surface of the detection head. At the 3 / 4 height of the connection port, detection ports are arranged at equal angular intervals along the circumferential direction of the connection port inside the detection head. The number of detection ports is between 5 and 20. The detection port is a cylindrical structure. The inner side surface of the detection port is smooth. The length direction of the detection port is consistent with the radial direction of the detection head. The inner end of the detection port is located at the connection port, so that the detection port communicates with the connection port, and the inner ends of the detection ports are arranged at equal angular intervals at the connection port. The outer end of the detection port is located on the side surface of the detection head, and the outer ends of the detection ports are arranged at equal angular intervals on the side surface of the detection head. A sliding groove is opened on the inner side surface of the detection port. The sliding groove is a square structure. The number of sliding grooves is between 2 and 4. Each sliding groove is arranged at equal angular intervals along the circumferential direction of the detection port. The sliding groove is arranged along the length direction of the detection port. There is a certain distance between the inner end of the sliding groove and the inner end of the detection port. There is a certain distance between the outer end of the sliding groove and the outer end of the detection port. A detection rod is arranged inside the detection port. The detection rod is a solid cylindrical structure. The diameter of the detection rod is the same as the inner diameter of the detection port. The length of the detection rod is greater than the length of the detection port. An embedding pin is arranged at the inner end of the detection rod. The embedding pins are arranged at equal angular intervals along the circumferential direction of the inner end of the detection rod. The structure of the embedding pin is completely the same as the structure of the sliding groove. The number of embedding pins is exactly the same as the number of sliding grooves. Each embedding pin is completely embedded in the corresponding sliding groove, so as to realize the sliding connection between the detection rod and the detection port. After connection, the embedding pin moves along the sliding groove to realize the corresponding sliding of the detection rod inside the detection port, and there is a seamless embedding connection between the connected embedding pin and the sliding groove, so that the detection rod after connection closes the detection port. After connection, when the embedding pin is located at the innermost side of the sliding groove, the outer side of the detection rod extends out of the detection port. Detection support rods are arranged on the circular surface of the outer end of the detection rod. The number of detection support rods is between 10 and 20. The detection support rod is a solid cylindrical structure. The diameter of the detection support rod is such that the area of the circular surface of the outer end of the detection support rod is a unit area. The inner end of the detection support rod is fixedly connected to the circular surface of the outer end of the detection rod. The fixed points of each detection support rod on the circular surface of the outer end of the detection rod are evenly arranged in a certain order. Pressure sensors are arranged on the circular surfaces of the outer ends of each detection support rod. The pressure sensor is a circular structure. The pressure sensor completely covers the circular surface of the outer end of the detection support rod. Each pressure sensor is communicatively connected to the calculation unit.The computing unit is communicatively connected to the display unit. The pneumatic device includes an intake pipe, which is a 90-degree elbow pipe. The turning part of the intake pipe is an arc-shaped structure. There is a fixed connection for communication between the upper port of the intake pipe and the lower end of the connection port of the detection head, thereby realizing the connection between the pneumatic device and the detection device. The other end of the intake pipe is communicatively connected to a pneumatic pressure pump. A fixed sleeve is sleeved outside the intake pipe. The fixed sleeve is a hollow cylindrical structure with both ends open. The fixed sleeve is sleeved on the intake pipe. There is a certain distance between the upper end of the fixed sleeve and the lower side of the detection head. An intake pipe outlet is opened on the side of the fixed sleeve near the lower end. The intake pipe outlet is a circular structure. The pipe path after the turning of the intake pipe extends out through the intake pipe outlet. A fixed seat is arranged at the lower end of the fixed sleeve. The fixed seat is a solid cylindrical structure with a certain weight. A fixing port is arranged at the center of the upper side of the fixed seat. The fixing port is a cylindrical structure. There is a certain distance between the lower end of the fixing port and the lower side of the fixed seat. Internal threads are arranged in the fixing port. External threads are arranged on the outer side of the side of the lower end of the fixed sleeve. The lower end of the fixed sleeve is embedded into the fixing port and the external threads are screwed into the internal threads to realize the connection between the fixed sleeve and the fixed seat. The fixed seat is placed on the ground, thereby realizing the fixation of the sock performance detection device on the ground. On the inner side of the upper end of the fixed sleeve, a left fixing arc and a right fixing arc are arranged. The structures of the left fixing arc and the right fixing arc are the same. The left fixing arc and the right fixing arc include a fixing arc and a fixing rod. The fixing arc of the left fixing arc is an arc-shaped structure convex to the left. The fixing arc of the right fixing arc is an arc-shaped structure convex to the right. The inner arc surface of the fixing arc is completely consistent with the 1 / 2 arc surface of the cross-section of the side of the fixed sleeve. The fixing rod is a solid cylindrical structure. There is a fixed connection between the left side of the middle part of the fixing arc of the left fixing arc and the right end of the fixing rod. There is a fixed connection between the right side of the middle part of the fixing arc of the right fixing arc and the left end of the fixing rod. Fixing threads are arranged on the outer side of the side of a certain length of the fixing rod. The distance between the end of the fixing thread facing the fixed sleeve and the connection end of the fixing arc and the fixing rod is less than the difference between the radii of the fixed sleeve and the intake pipe. The distance between the other side of the fixing thread and the connection end of the fixing arc and the fixing rod is greater than the difference between the radii of the fixed sleeve and the intake pipe. A left fixing connection port is opened on the left side of the fixed sleeve near the upper end, and a right fixing connection port is opened on the right side. The structures of the left fixing connection port and the right fixing connection port are the same. Both the left fixing connection port and the right fixing connection port are circular ports. The connection line between the centers of the left fixing connection port and the right fixing connection port passes through the center of the fixed sleeve. The fixing rod of the left fixing arc passes through the left fixing connection port, and the fixing rod of the right fixing arc passes through the right fixing connection port. And a nut is sleeved on the fixing rod, thereby realizing the fixed connection between the fixing rod and the fixed sleeve. At the same time, the indirect adjustment between the fixing arc and the fixed sleeve is realized by screwing the nut in or out.,

[0008] The present invention also relates to a method for detecting the performance of socks, comprising the following steps:

[0009] Step 1: Balance the sample to be tested in a standard atmospheric environment with a humidity of 65% ± 2% and a temperature of 20 ± 2°C for at least 24 hours, so as to ensure that the moisture content rate and regain rate of the socks are consistent when tested at different time periods;

[0010] Step 2: Fit test, comprising the following steps:

[0011] Select the corresponding template according to the size on the label of the socks;

[0012] At this time, if the sock can be put on the template, put the sock on the template and observe whether the center point of the sock heel part is at the center point of the sock heel of the template. If the center points coincide, it is qualified, and then the durability test is carried out; if the center points do not coincide, it is unqualified and the durability test is not required;

[0013] If the sock cannot be put on the template of the specified size, it is determined to be unqualified and the durability test is not required;

[0014] Step 3: Pressure-bearing test, comprising the following steps:

[0015] (1) Sampling: Take five groups of test samples with an area of 100 cm 2 each at the toe, heel, and surface of the sock. If the size of the test sample is less than 100 cm 2 , then the minimum sampling size is at least 50 cm 2 . If the minimum sampling size cannot be reached, this part is not tested and noted;

[0016] (2) Use the given sock performance testing device to conduct pressure tests on the selected samples respectively. During the test, in the initial state, set the pneumatic pressure pump to the non-working state. Rotate the nut so that there is a certain distance between the fixed arc of the left fixed arc and the intake pipe, and between the fixed arc of the right fixed arc and the intake pipe. Cover the sample to be tested on the detection head. The hanging part of the placed sample extends between the fixed arc of the left fixed arc and the intake pipe, and between the fixed arc of the right fixed arc and the intake pipe. Then rotate the nut so that the fixed rod moves towards the intake pipe, so that the fixed arcs of the left fixed arc and the right fixed arc move towards the intake pipe until the fixed arcs of the left fixed arc and the right fixed arc are close to the intake pipe, thus fixing the hanging part of the sample that extends between the fixed arc of the left fixed arc and the intake pipe and fixing the hanging part of the sample that extends between the fixed arc of the right fixed arc and the intake pipe, thereby completing the fixation before the sample test; during the test, set the pneumatic pressure pump to the working state. The compressed air flows into the connection port of the detection head through the intake pipe, and the air flow directly enters the detection port that is interconnected with the connection port. The inflowing air flow pushes the detection rod to move outwards. During this process, when the outer ends of the detection rods are not in contact with the sample, the detection rods are not blocked by external forces, so that the detection rods move outwards synchronously under the push of the compressed air flow. Due to the uncertainty of the sample placement, there is a certain difference in the distance between the outer ends of the detection rods and the sample, so that there is a certain difference in the time when the outer ends of the detection rods come into contact with the sample. When the outer end of a detection rod comes into contact with the sample, it will receive a corresponding blocking force, so that the moving speed of the detection rod slows down, thus realizing the self-adaptation of the detection rod before conducting the pressure test on the sample. After the outer end of the detection rod comes into contact with the sample, the detection rod generates a corresponding pressure on the sample, and then the sample generates an equal reaction pressure on the pressure sensor on the detection rod. This reaction pressure is transmitted to the calculation unit in real time through the pressure sensor. When a detection rod breaks through the sample it contacts, the test value of the pressure sensor of this detection rod immediately drops to 0. Take the test value before the 0 value of this pressure sensor as the bearing pressure per unit area of the corresponding sample part. According to the bearing pressures of the obtained pressure sensors, when all the detection rods break through the samples they contact, the test is completed. Immediately set the pneumatic pressure pump to the non-working state at this time;Then, the calculation unit starts corresponding operations. The calculation unit calculates the average value and variance of the bearing pressures measured by the pressure sensors on each detection rod respectively. The calculated average value and variance are displayed correspondingly on the display unit. The average value is used as the test value of the bearing pressure of the corresponding part of the sample, and the variance value is used as the test value of the discreteness of the bearing pressure of the corresponding part of the sample. At the same time, the calculation unit performs an averaging operation on the average values of the bearing pressures on each detection rod to obtain the final average value of the bearing pressure of the sample. The calculation unit also performs an averaging operation on the variances of the bearing pressures on each detection rod to obtain the final variance of the bearing pressure of the sample. The calculated final average value and final variance are displayed correspondingly on the display unit. The final average value is used as the test value of the bearing pressure of the sample, and the final variance value is used as the test value of the discreteness of the bearing pressure of the sample. After the test is completed, rotate the nut to move the fixed rod in the direction away from the air inlet pipe, so that the fixed arcs of the left fixed arc and the right fixed arc move in the direction away from the air inlet pipe until there is a certain distance between the fixed arcs of the left fixed arc, the right fixed arc and the air inlet pipe, and then remove the sample from the detection head.

[0017] Step 4: Abrasion resistance test:

[0018] For the toe part of the sock, use a Martindale tester for testing, including the following steps:

[0019] (1) Take samples at the head of the sock. The sample size is 38 mm and the number of samples is 4 groups.

[0020] (2) Install a standard wool cloth on the Martindale workbench as the abrasion-resistant medium, and place a wool felt between the workbench and the wool cloth.

[0021] (3) Put the test sample into the fixing ring, place a polyester foam pad between the clamping ring and the test sample, and apply a load of 9 Kpa.

[0022] (4) Adjust the Martindale instrument to the outer ring abrasion track, start the instrument, and let the test sample rub against the wool cloth.

[0023] (5) Observe the test sample until a hole appears and then stop. Record the number of circles when the hole appears in each sample as P1, P2, P3, P4 respectively. Then the average value Pa = (P1 + P2 + P3 + P4) / 4.

[0024] For the heel part of the sock, use a universal abrasion tester for testing, including the following steps:

[0025] (1) Take samples at the heel of the sock. The sample size is 100 cm 2 , and the number of samples is 4 groups.

[0026] (2) Fix the sample inside the test bench, ensure sealing, and apply air pressure up to 4 psi;

[0027] (3) Fix the standard sandpaper inside the gripper above the test bench, then apply a pressure of 1 pound to ensure contact between the sandpaper and the test sample, start the instrument, and begin the test;

[0028] (4) Observe the test sample until a hole appears and then stop. Record the number of turns when the hole appears for each single sample as T1, T2, T3, T4, and the average value Ta = (T1 + T2 + T3 + T4) / 4;

[0029] Step 5: Conduct a snagging performance test on the stockings, including the following steps:

[0030] (1) Take samples at the long tube part of the stockings, with a sampling length of 140 mm and a sampling quantity of 3 pieces;

[0031] (2) Sew one end of the test sample to form a pocket shape, put the bead pillow into the test sample, and sew up the other end opening. The sewing thread is on the inner side of the test sample;

[0032] (3) Put the sewn test sample into the test bucket of the bead pillow tester, and place one sample in each test bucket;

[0033] (4) Set the number of turns of the instrument to 100 turns and conduct the test. After the test is over, take out the test sample and take out the bead pillow bag from the test sample;

[0034] (5) Conduct grading inside the snagging grading box. Each sample is graded separately, and at least 2 graders are required. And the set grades are as follows:

[0035] 5 - No snagging or slight snagging

[0036] 4 - A small amount of snagging

[0037] 3 - A medium amount of snagging

[0038] 2 - Severe snagging

[0039] 1 - Very severe snagging

[0040] Step 6: Comprehensive evaluation

[0041] Evaluate the final usability and durability of the stockings based on the comprehensive tests of four parts: fitness test, pressure resistance test, abrasion resistance test, and snagging test.

[0042] This patent realizes the simultaneous testing of the bearing pressures on multiple unit areas of socks by using a pneumatic multi-arm dilatometer, and then obtains the corresponding average bearing force and the discrete distribution of the bearing pressure, so as to achieve a more accurate and comprehensive measurement of the bearing performance of socks. On this basis, a detection method that can truly, effectively, quickly and accurately reflect the usability and wear resistance of socks is given, providing technical services for production enterprises in the R & D and production links, and providing a unified detection method for major detection institutions, thus avoiding test errors caused by inconsistent detection methods and the like. Brief Description of the Drawings

[0043] Figure 1 It is a schematic diagram of the overall structure of the sock performance detection device of the present invention.

[0044] Wherein: 1. Detection head, 2. Detection port, 3. Sliding groove, 4. Detection rod, 5. Embedded pin, 6. Detection support rod, 7. Air inlet pipe, 8. Fixed sleeve, 9. Left fixed arc, 10. Right fixed arc, 11. Fixed rod, 12. Nut, 13. Fixed arc, 14. Pneumatic pressure pump, 15. Pressure sensor. Detailed Embodiment

[0045] The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0046] As Figure 1 shown, a sock performance detection device includes a detection device and a pneumatic device.

[0047] The detection device includes a detection head 1. The detection head is a solid cylindrical structure, placed vertically. The detection head is made of steel or iron. A connection port is opened on the lower side surface of the detection head. The connection port is a cylindrical structure. The lower end of the connection port is located on the lower circular surface of the detection head. There is a certain distance between the upper end of the connection port and the upper circular surface of the detection head. At 3 / 4 of the height of the connection port, detection ports 2 are arranged at equal angular intervals along the circumferential direction of the connection port inside the detection head. The number of detection ports is between 5 and 20. The detection port is a cylindrical structure. The inner side surface of the detection port is smooth. The length direction of the detection port is consistent with the radial direction of the detection head. The inner end of the detection port is located at the connection port, so that the detection port is interconnected with the connection port, and the inner ends of the detection ports are arranged at equal angular intervals at the connection port. The outer end of the detection port is located on the side surface of the detection head, and the outer ends of the detection ports are arranged at equal angular intervals on the side surface of the detection head. A sliding groove 3 is opened on the inner side surface of the detection port. The sliding groove is a square structure. The number of sliding grooves is between 2 and 4. Each sliding groove is arranged at equal angular intervals along the circumferential direction of the detection port. The sliding groove is arranged along the length direction of the detection port. There is a certain distance between the inner end of the sliding groove and the inner end of the detection port. There is a certain distance between the outer end of the sliding groove and the outer end of the detection port. A detection rod 4 is arranged inside the detection port. The detection rod is a solid cylindrical structure. The diameter of the detection rod is the same as the inner diameter of the detection port. The length of the detection rod is greater than the length of the detection port. An embedding pin 5 is arranged at the inner end of the detection rod. The embedding pins are arranged at equal angular intervals along the circumferential direction of the inner end of the detection rod. The structure of the embedding pin is exactly the same as the structure of the sliding groove. The number of embedding pins is exactly the same as the number of sliding grooves. Each embedding pin is completely embedded in the corresponding sliding groove, so as to realize the sliding connection between the detection rod and the detection port. After connection, the embedding pin moves along the sliding groove to realize the corresponding sliding of the detection rod inside the detection port, and there is a seamless embedding connection between the connected embedding pin and the sliding groove, so that the detection rod closes the detection port after connection. When the embedding pin is located at the innermost side of the sliding groove after connection, the outer side of the detection rod extends out of the detection port. Detection support rods 6 are arranged on the circular surface of the outer end of the detection rod. The number of detection support rods is between 10 and 20. The detection support rod is a solid cylindrical structure. The diameter of the detection support rod is such that the area of the circular surface of the outer end of the detection support rod is a unit area. The inner end of the detection support rod is fixedly connected to the circular surface of the outer end of the detection rod. The fixed points of each detection support rod on the circular surface of the outer end of the detection rod are evenly arranged in a certain order. Pressure sensors 15 are arranged on the circular surface of the outer end of each detection support rod. The pressure sensor is a circular structure. The pressure sensor completely covers the circular surface of the outer end of the detection support rod. Each pressure sensor is communicatively connected to a calculation unit, and the calculation unit is communicatively connected to a display unit.

[0048] The pneumatic device includes an air inlet pipe 7. The air inlet pipe is a 90-degree elbow pipe, and the turning part of the air inlet pipe is an arc-shaped structure. The upper port of the air inlet pipe is fixedly connected to the lower end of the connection port of the detection head in a communicating manner, so as to realize the connection between the pneumatic device and the detection device. The other end of the air inlet pipe is connected to a pneumatic pressure pump 14 in a communicating manner. A fixed sleeve 8 is sleeved outside the air inlet pipe. The fixed sleeve is a hollow cylindrical structure with both ends open. The fixed sleeve is sleeved on the air inlet pipe, and there is a certain distance between the upper end of the fixed sleeve and the lower side of the detection head. An air inlet pipe outlet is opened on one side of the lower part of the fixed sleeve. The air inlet pipe outlet is a circular structure. The pipe of the air inlet pipe after turning extends out through the air inlet pipe outlet. A fixed seat is arranged at the lower end of the fixed sleeve. The fixed seat is a solid cylindrical structure with a certain weight. A fixed opening is arranged at the center of the upper side of the fixed seat. The fixed opening is a cylindrical structure, and there is a certain distance between the lower end of the fixed opening and the lower side of the fixed seat. Internal threads are arranged in the fixed opening. External threads are arranged on the outer side of the side of the lower end of the fixed sleeve. The lower end of the fixed sleeve is embedded into the fixed opening and the external threads are screwed into the internal threads to realize the connection between the fixed sleeve and the fixed seat. The fixed seat is placed on the ground, so as to realize the fixation of the sock performance detection device on the ground. On the inner side of the upper end of the fixed sleeve, a left fixing arc 9 and a right fixing arc 10 are arranged. The structures of the left fixing arc and the right fixing arc are the same. The left fixing arc and the right fixing arc include a fixing arc 13 and a fixing rod 11. The fixing arc of the left fixing arc is an arc-shaped structure convex to the left, and the fixing arc of the right fixing arc is an arc-shaped structure convex to the right. The inner arc surface of the fixing arc is completely consistent with the 1 / 2 arc surface of the cross-section of the side of the fixed sleeve. The fixing rod is a solid cylindrical structure. The left side of the middle part of the fixing arc of the left fixing arc is fixedly connected to the right end of the fixing rod, and the right side of the middle part of the fixing arc of the right fixing arc is fixedly connected to the left end of the fixing rod. Fixing threads are arranged on the outer side of the side of a certain length of the fixing rod. The distance between the end of the fixing thread facing the fixed sleeve and the connection end of the fixing arc and the fixing rod is less than the difference between the radii of the fixed sleeve and the air inlet pipe, and the distance between the other side of the fixing thread and the connection end of the fixing arc and the fixing rod is greater than the difference between the radii of the fixed sleeve and the air inlet pipe. A left fixing connection port is opened on the left side of the upper part of the fixed sleeve, and a right fixing connection port is opened on the right side. The structures of the left fixing connection port and the right fixing connection port are the same. Both the left fixing connection port and the right fixing connection port are circular ports. The connection line between the centers of the left fixing connection port and the right fixing connection port passes through the center of the fixed sleeve. The fixing rod of the left fixing arc passes through the left fixing connection port, and the fixing rod of the right fixing arc passes through the right fixing connection port. A nut 12 is sleeved on the fixing rod, so as to realize the fixed connection between the fixing rod and the fixed sleeve, and at the same time, the indirect adjustment between the fixing arc and the fixed sleeve is realized by screwing the nut in or out.

[0049] The detection process includes the following steps:

[0050] Step 1: Balance the sample to be tested in a standard atmospheric environment with a humidity of 65% ± 2% and a temperature of 20 ± 2°C for at least 24 hours to ensure that the moisture content and moisture regain of the socks are consistent when tested at different time periods;

[0051] Step 2: Fit testing, including the following steps:

[0052] Choose the corresponding set according to the size on the socks tag;

[0053] At this time, if the socks can be put on the plate, put the socks on the plate and observe whether the center point of the sock heel is at the center point of the sock heel of the plate. If the center points coincide, it is qualified and a durability test is performed; if the center points do not coincide, it is unqualified and no durability test is required;

[0054] If the socks cannot fit on the specified size plate, they are deemed unqualified and do not need to be tested for durability;

[0055] Step 3: Pressure test, including the following steps:

[0056] (1) Sampling: Take five groups of samples with an area of ​​100 cm from the toe, heel and surface of the socks. 2 If the test sample size does not reach 100cm 2 , then the minimum sampling size is 50cm 2 If the minimum sampling size is not reached, the part will not be tested and it should be noted;

[0057] (2) Use the given sock performance detection device to conduct pressure tests on the selected samples respectively. During the test, in the initial state, set the pneumatic pressure pump to the non-working state. Rotate the nut so that there is a certain distance between the fixed arc of the left fixed arc and the intake pipe, and between the fixed arc of the right fixed arc and the intake pipe. Cover the sample to be tested on the detection head. The hanging part of the placed sample extends between the fixed arc of the left fixed arc and the intake pipe, and between the fixed arc of the right fixed arc and the intake pipe. Then rotate the nut so that the fixed rod moves towards the intake pipe, so that the fixed arcs of the left fixed arc and the right fixed arc move towards the intake pipe until the fixed arcs of the left fixed arc and the right fixed arc are close to the intake pipe, thus fixing the hanging part of the sample that extends between the fixed arc of the left fixed arc and the intake pipe and fixing the hanging part of the sample that extends between the fixed arc of the right fixed arc and the intake pipe, thereby completing the fixation before the sample test; during the test, set the pneumatic pressure pump to the working state. The compressed air flows into the connection port of the detection head through the intake pipe, and the air flow directly enters the detection port that is interconnected with the connection port. The inflowing air flow pushes the detection rod to move outwards. During this process, when the outer ends of the detection rods are not in contact with the sample, the detection rods are not blocked by external forces, so that the detection rods move outwards synchronously under the push of the compressed air flow. Due to the uncertainty of the sample placement, there is a certain difference in the distance between the outer ends of the detection rods and the sample, so that there is a certain difference in the time when the outer ends of the detection rods come into contact with the sample. When the outer end of a detection rod comes into contact with the sample, it will receive a corresponding blocking force, so that the moving speed of the detection rod slows down, thus realizing the self-adaptation of the detection rod before conducting the pressure test on the sample. After the outer end of the detection rod comes into contact with the sample, the detection rod generates a corresponding pressure on the sample, and then the sample generates an equal reaction pressure on the pressure sensor on the detection rod. This reaction pressure is transmitted to the calculation unit in real time through the pressure sensor. When a detection rod breaks through the sample it contacts, the test value of the pressure sensor of this detection rod immediately drops to 0. Take the test value before the 0 value of this pressure sensor as the bearing pressure per unit area of the corresponding sample part. According to the bearing pressures of the pressure sensors obtained, when all the detection rods break through the samples they contact, the test is completed. Immediately set the pneumatic pressure pump to the non-working state at this time;Then, the calculation unit starts corresponding operations. The calculation unit calculates the average value and variance of the bearing pressures measured by the pressure sensors on each detection rod respectively. The calculated average value and variance are displayed correspondingly on the display unit. The average value is used as the test value of the bearing pressure of the corresponding part of the sample, and the variance value is used as the test value of the discreteness of the bearing pressure of the corresponding part of the sample. At the same time, the calculation unit performs an averaging operation on the average values of the bearing pressures on each detection rod to obtain the final average value of the bearing pressure of the sample. The calculation unit also performs an averaging operation on the variances of the bearing pressures on each detection rod to obtain the final variance of the bearing pressure of the sample. The calculated final average value and final variance are displayed correspondingly on the display unit. The final average value is used as the test value of the bearing pressure of the sample, and the final variance value is used as the test value of the discreteness of the bearing pressure of the sample. After the test is completed, rotate the nut to move the fixed rod in the direction away from the air inlet pipe, so that the fixed arcs of the left fixed arc and the right fixed arc move in the direction away from the air inlet pipe until there is a certain distance between the fixed arcs of the left fixed arc and the right fixed arc and the air inlet pipe, and then remove the sample from the detection head.

[0058] Step 4: Abrasion resistance test:

[0059] For the toe part of the sock, a Martindale tester is used for the test, including the following steps:

[0060] (1) Take samples at the head of the sock. The sample size is 38 mm and the number of samples is 4 groups.

[0061] (2) Install a standard wool cloth on the Martindale workbench as the abrasion medium, and place a wool felt between the workbench and the wool cloth.

[0062] (3) Put the test sample into the fixing ring, place a polyester foam pad between the holding ring and the test sample, and apply a load of 9 Kpa.

[0063] (4) Adjust the Martindale instrument to the outer ring abrasion track, start the instrument, and let the test sample rub against the wool cloth.

[0064] (5) Observe the test sample until a hole appears and then stop. Record the number of circles when a hole appears in each sample as P1, P2, P3, P4 respectively. Then the average value Pa = (P1 + P2 + P3 + P4) / 4.

[0065] For the heel part of the sock, a universal abrasion tester is used for the test, including the following steps:

[0066] (1) Take samples at the heel of the sock. The sample size is 100 cm 2 , and the number of samples is 4 groups.

[0067] (2) Fix the sample inside the test bench, ensure sealing, and apply air pressure up to 4 psi;

[0068] (3) Fix the standard sandpaper inside the gripper above the test bench, then apply a pressure of 1 pound to ensure contact between the sandpaper and the test sample, start the instrument, and begin the test;

[0069] (4) Observe the test sample until a hole appears and then stop. Record the number of turns when the hole appears for each single sample as T1, T2, T3, and T4 respectively. The average value Ta = (T1 + T2 + T3 + T4) / 4;

[0070] Step 5: Conduct a snagging performance test on the stockings, including the following steps:

[0071] (1) Take samples at the long tube part of the sock, with a sampling length of 140 mm and a sampling quantity of 3 pieces;

[0072] (2) Sew one end of the test sample to form a pocket shape, put the bead pillow into the test sample, and then sew up the other open end. The sewing thread is on the inner side of the test sample;

[0073] (3) Put the sewn test sample into the test bucket of the bead pillow tester, with one sample placed in each test bucket;

[0074] (4) Set the number of turns of the instrument to 100 and conduct the test. After the test is completed, take out the test sample and take out the bead pillow bag from the test sample;

[0075] (5) Conduct grading inside the snagging grading box. Each sample is graded separately, with at least 2 graders, and the set grades are as follows:

[0076] 5 - No snagging or slight snagging

[0077] 4 - A small amount of snagging

[0078] 3 - A medium amount of snagging

[0079] 2 - Severe snagging

[0080] 1 - Very severe snagging

[0081] Step 6: Comprehensive evaluation

[0082] Based on the comprehensive tests of the four parts of the fit test, pressure-bearing test, wear resistance test, and snagging test, evaluate the final usability and durability of the socks.

[0083] The structure, features and effects of the present invention have been described in detail based on the embodiments shown in the drawings. The above description is only the preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the drawings. Any changes made according to the concept of the present invention, or equivalent embodiments modified to equivalent changes, should still be within the protection scope of the present invention as long as they do not exceed the spirit covered by the description and the drawings.

Claims

1. A sock performance detection device, comprising a detection device and a pneumatic device, characterized in that: The detection device includes a detection head. A connection port is opened on the lower side surface of the detection head. At 3 / 4 of the height of the connection port, detection ports are arranged at equal angular intervals along the circumferential direction of the connection port inside the detection head. A sliding groove is opened on the inner side surface of the detection port. A detection rod is arranged inside the detection port. Embedding pins are arranged at the inner ends of the detection rods. Each embedding pin is completely embedded in the corresponding sliding groove, so as to realize the sliding connection between the detection rod and the detection port. Detection support rods are arranged on the circular surface at the outer end of the detection rod. Pressure sensors are arranged on the circular surfaces at the outer ends of the respective detection support rods. Each pressure sensor is communicatively connected to a calculation unit, and the calculation unit is communicatively connected to a display unit. The pneumatic device includes an air inlet pipe. The upper port of the air inlet pipe is fixedly connected in communication with the lower end of the connection port of the detection head. The other end of the air inlet pipe is communicatively connected to a pneumatic pressure pump. A fixed sleeve is sleeved outside the air inlet pipe. An air inlet pipe outlet is opened on the side surface of one side of the lower end of the fixed sleeve. A fixed seat is arranged at the lower end of the fixed sleeve. A fixed port is arranged at the central part of the upper side surface of the fixed seat. A left fixed arc and a right fixed arc are arranged inside the upper end of the fixed sleeve. The left fixed arc and the right fixed arc include a fixed arc and a fixed rod; The detection head is a solid cylindrical structure, placed vertically, and made of steel or iron; The number of detection ports is between 5 and 20. The detection port is a cylindrical structure. The inner side surface of the detection port is kept smooth. The length direction of the detection port is consistent with the radial direction of the detection head. The inner end of the detection port is located at the connection port, so that the detection port and the connection port are interconnected, and the inner ends of the detection ports are arranged at equal angular intervals at the connection port. The outer end of the detection port is located at the side surface of the detection head, and the outer ends of the detection ports are arranged at equal angular intervals on the side surface of the detection head; The sliding groove is a square structure. The number of sliding grooves is between 2 and 4. Each sliding groove is arranged at equal angular intervals along the circumferential direction of the detection port. The sliding groove is arranged along the length direction of the detection port. There is a certain distance between the inner end of the sliding groove and the inner end of the detection port, and there is a certain distance between the outer end of the sliding groove and the outer end of the detection port.

2. The sock performance detection device according to claim 1, wherein: The detection support rod is a solid cylindrical structure. The diameter of the detection support rod is such that the area of the circular surface at the outer end of the detection support rod is a unit area. The inner end of the detection support rod is fixedly connected to the circular surface at the outer end of the detection rod. The fixed points of the respective detection support rods on the circular surface at the outer end of the detection rod are evenly arranged in a certain order.

3. The sock performance detection device according to claim 2, wherein: The fixed port is a cylindrical structure. There is a certain distance between the lower end of the fixed port and the lower side surface of the fixed seat. Internal threads are arranged inside the fixed port. External threads are arranged on the outer side of the side surface at the lower end of the fixed sleeve. The lower end of the fixed sleeve is embedded in the fixed port and the external threads are screwed into the internal threads to realize the connection between the fixed sleeve and the fixed seat. The fixed seat is placed on the ground, so as to realize the fixation of the sock performance detection device on the ground.

4. The sock performance detection device according to claim 3, characterized in that: The fixed arc of the left fixed arc is an arc-shaped structure convex to the left, and the fixed arc of the right fixed arc is an arc-shaped structure convex to the right. The inner arc surface of the fixed arc is completely consistent with the 1 / 2 arc surface of the cross-section of the side surface of the fixed sleeve. The fixed rod is a solid cylindrical structure. The left side of the middle part of the fixed arc of the left fixed arc is fixedly connected to the right end of the fixed rod, and the right side of the middle part of the fixed arc of the right fixed arc is fixedly connected to the left end of the fixed rod. On the outer side of the side surface of a certain length of the fixed rod, there is a fixed screw thread. The distance between the end of the fixed screw thread facing the fixed sleeve and the connection end of the fixed arc and the fixed rod is less than the difference between the radius of the fixed sleeve and the intake pipe, and the distance between the other side of the fixed screw thread and the connection end of the fixed arc and the fixed rod is greater than the difference between the radius of the fixed sleeve and the intake pipe. On the left side near the upper end of the fixed sleeve, there is a left fixed connection port, and on the right side, there is a right fixed connection port. The left fixed connection port and the right fixed connection port have the same structure. Both the left fixed connection port and the right fixed connection port are circular ports. The connection line between the centers of the left fixed connection port and the right fixed connection port passes through the center of the fixed sleeve. The fixed rod of the left fixed arc passes through the left fixed connection port, and the fixed rod of the right fixed arc passes through the right fixed connection port. And a nut is sleeved on the fixed rod, so as to realize the fixed connection between the fixed rod and the fixed sleeve, and at the same time, the indirect adjustment between the fixed arc and the fixed sleeve is realized by screwing the nut in or out.

5. The sock performance detection method of a sock performance detection device according to claim 4, characterized in that: It includes the following steps: The first step: Balance the sample to be tested in a standard atmospheric environment with a humidity of 65% ± 2% and a temperature of 20 ± 2°C for at least 24 hours, so as to ensure that the moisture content rate and moisture regain rate of the socks are consistent during testing at different time periods. The second step: Fit test, including the following steps: Select the corresponding template according to the size on the sock tag. At this time, if the sock can be put on the template, then put the sock on the template and observe whether the center point of the sock heel part is at the center point of the sock heel of the template. If the center points coincide, it is qualified, and then the durability test is carried out; if the center points do not coincide, it is unqualified and the durability test does not need to be carried out. If the sock cannot be put on the specified size template, it is judged as unqualified and the durability test does not need to be carried out. The third step: Bearing pressure test, including the following steps: (1) Sampling: Take five groups of test samples with an area of 100 cm at the toe, heel, and surface of the sock. 2 If the size of the test sample cannot reach 100 cm, 2 then the minimum sampling size is at least 50 cm. 2 If the minimum sampling size cannot be reached, the part will not be tested and should be noted. (2) Use the given sock performance testing device to conduct pressure tests on the selected samples respectively. During the test, in the initial state, set the pneumatic pressure pump to the non-working state. Rotate the nut so that there is a certain distance between the fixed arc of the left fixed arc and the intake pipe, and between the fixed arc of the right fixed arc and the intake pipe. Cover the sample to be tested on the detection head. The hanging part of the placed sample extends between the fixed arc of the left fixed arc and the intake pipe, and between the fixed arc of the right fixed arc and the intake pipe. Then rotate the nut so that the fixed rod moves towards the intake pipe, thereby causing the fixed arcs of the left fixed arc and the right fixed arc to move towards the intake pipe until the fixed arcs of the left fixed arc and the right fixed arc are close to the intake pipe, thus fixing the part of the hanging sample that extends between the fixed arc of the left fixed arc and the intake pipe and fixing the part of the hanging sample that extends between the fixed arc of the right fixed arc and the intake pipe, thereby completing the fixation before the sample test; during the test, set the pneumatic pressure pump to the working state. The compressed air flows into the connection port of the detection head through the intake pipe, and the air directly enters the detection port that is interconnected with the connection port. The inflowing air pushes the detection rod to move outwards. During this process, when the outer ends of the detection rods are not in contact with the sample, the detection rods are not blocked by external forces, so that the detection rods move outwards synchronously under the push of the compressed air. Due to the uncertainty of the sample placement, there is a certain difference in the distance between the outer ends of the detection rods and the sample, so that there is a certain difference in the time when the outer ends of the detection rods come into contact with the sample. When the outer end of a detection rod comes into contact with the sample, it will receive a corresponding blocking force, which slows down the moving speed of the detection rod, thus realizing the self-adaptation of the detection rod before the pressure test on the sample. After the outer end of the detection rod comes into contact with the sample, the detection rod generates a corresponding pressure on the sample, and then the sample generates an equal reaction pressure on the pressure sensor on the detection rod. This reaction pressure is transmitted to the calculation unit in real time through the pressure sensor. When a detection rod breaks through the sample it contacts, the test value of the pressure sensor of this detection rod immediately drops to 0. Take the test value before the 0 value of this pressure sensor as the bearing pressure per unit area of the corresponding sample part. According to the bearing pressures of the pressure sensors obtained, when all the detection rods break through the samples they contact, the test is completed. At this time, immediately set the pneumatic pressure pump to the non-working state;Subsequently, the calculation unit starts corresponding operations. The calculation unit calculates the average value and variance of the bearing pressures measured by the pressure sensors on each detection rod respectively. The calculated average value and variance are correspondingly displayed on the display unit. The average value is used as the test value of the bearing pressure of the corresponding part of the sample, and the variance value is used as the test value of the discreteness of the bearing pressure of the corresponding part of the sample. At the same time, the calculation unit performs an averaging operation on the average values of the bearing pressures on each detection rod to obtain the final average value of the bearing pressure of the sample. The calculation unit also performs an averaging operation on the variances of the bearing pressures on each detection rod to obtain the final variance of the bearing pressure of the sample. The calculated final average value and final variance are correspondingly displayed on the display unit. The final average value is used as the test value of the bearing pressure of the sample, and the final variance value is used as the test value of the discreteness of the bearing pressure of the sample. After the test is completed, rotate the nut to move the fixed rod in the direction away from the intake pipe, so that the fixed arcs of the left fixed arc and the right fixed arc move in the direction away from the intake pipe until a certain distance is generated between the fixed arcs of the left fixed arc, the right fixed arc and the intake pipe, thereby removing the sample from the detection head; The fourth step: Abrasion resistance test: For the toe part of the sock, use a Martindale tester for testing, including the following steps: (1) Take samples at the head of the sock, with the sample size of 38mm and the number of samples being 4 groups. (2) Install a standard wool cloth on the Martindale workbench as the abrasion-resistant medium, and place a wool felt between the workbench and the wool cloth. (3) Put the test sample into the fixed ring, place a polyester foam pad between the inner part of the clamping ring and the test sample, and apply a load of 9Kpa. (4) Adjust the Martindale instrument to the outer ring abrasion track, start the instrument, and let the test sample rub against the wool cloth. (5) Observe the test sample until a hole appears and stop, and record the number of circles when a hole appears in each single sample as P1, P2, P3, P4 respectively, then the average value Pa = (P1 + P2 + P3 + P4) / 4. For the sock heel part, use a universal abrasion-resistant tester for testing, including the following steps: (1) Take samples at the heel of the sock, with a sample size of 100 cm 2 , and 4 groups of samples; (2) Fix the sample inside the test bench, ensure sealing, and apply air pressure up to 4 psi; (3) Fix the standard sandpaper inside the gripper above the test bench, then apply a pressure of 1 pound to ensure contact between the sandpaper and the test sample, start the instrument, and begin the test; (4) Observe the test sample until a hole appears and then stop. Record the number of circles when the hole appears in each single sample as T1, T2, T3, and T4 respectively. The average value Ta = (T1 + T2 + T3 + T4) / 4; Step 5: Conduct snagging performance tests on stockings, including the following steps: (1) Take samples at the long tube part of the stockings, with a sampling length of 140 mm and a sampling quantity of 3 pieces; (2) Sew one end of the test sample to form a pocket, put the bead pillow into the test sample, and sew up the other end opening. The sewing thread is on the inner side of the test sample; (3) Put the sewn test sample into the test bucket of the bead pillow tester, and place one sample in each test bucket; (4) Set the number of circles of the instrument to 100 and conduct the test. After the test is completed, take out the test sample and take out the bead pillow bag from the test sample; (5) Conduct grading inside the snagging grading box. Each sample is graded separately, with at least 2 graders, and the set grades are as follows: 5 - No snagging or slight snagging 4 - A small amount of snagging 3 - A medium amount of snagging 2 - Severe snagging 1 - Very severe snagging Step 6: Comprehensive evaluation Evaluate the final usability and durability of the stockings based on the comprehensive tests of four parts: fit test, pressure-bearing test, abrasion resistance test, and snagging test.

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