Measuring device for surface friction coefficient of elastic knitted fabric

Abstract

The utility model discloses a measuring device for the surface friction coefficient of elastic knitted fabric, which relates to the field of measuring devices, and comprises a measuring host and a measuring main body, the measuring main body is arranged at the top of the measuring host, a third fixer is arranged at the end part of the measuring host, a second fixing plate is arranged at the top of the third fixer, and the second fixing plate is arranged on the measuring host. A first fixing device and a second fixing device are installed at the top of the measuring body, a second rotating rod is arranged at the end of the measuring body, and a first fixing plate is arranged at the top of the first fixing device and the top of the second fixing device. The third rotating rod drives the third fixing device, the third fixing device tensions the cloth, the first fixing device and the second fixing device fix the two ends of the cloth respectively, and due to the fact that the threads arranged at the two ends of the second rotating rod are opposite, the cloth can be tightly fixed. The rotating second rotating rod drives the first fixing device and the second fixing device to synchronously get close to or away from each other, so that the cloth laid at the bottom of the measuring main body is tensioned.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of measuring device, concretely is a kind of elastic knitted fabric surface coefficient of friction measuring device. BACKGROUND

[0002] Elastic knitted fabric is a kind of textile material processed by knitting process, it has unique elastic performance, the fabric is usually mixed by elastic fiber such as spandex and other fibers such as cotton, polyester etc., and its knitted structure endows the fabric with good stretchability, softness and air permeability.

[0003] The friction coefficient of elastic knitted fabric is directly related to the hand feeling of fabric and the comfort of garment, and appropriate friction coefficient can make the fabric smooth and soft, thereby increasing the favorability of consumers, and in the actual wearing process of garment, the sports garment made of elastic knitted fabric with too high friction coefficient may generate large resistance when the human body moves, affecting the flexibility of movement, and even may cause skin discomfort due to excessive friction, and too low friction coefficient may make the garment easily slip during wearing, therefore, after the completion of cloth production, it is necessary to detect the friction coefficient of cloth, and the friction coefficient on the surface of elastic knitted fabric is usually measured by special friction coefficient measuring device, usually the elastic knitted fabric sample to be tested is cut into a sample of specified size, the cloth sample is generally rectangular, and the surface of the sample is ensured to be flat and wrinkle-free, then the cloth sample is fixed on the test platform of measuring device, to ensure that the sample does not displace during testing, then the cloth sample of the same size is fixed on the surface of movable slider of measuring device, during testing, the measuring device moves the slider at a certain speed on the surface of fabric sample by traction rope, when the slider slides on the fabric, the fabric fixed on the bottom of slider and the fabric fixed on the surface of measuring device rub against each other, and the friction force between the two groups of cloth during sliding is measured by sensor.

[0004] In the process of fixing cloth, the fabric on the measuring device is usually fixed by using hydraulic cylinder to extrude fixing plate, and the fabric on the slider is usually fixed by using clamping plate, and since the fabric is fixed by clamping plate and fixing plate, wrinkles may occur in the sliding process of the two groups of cloth, which seriously affects the measurement effect of the friction coefficient of cloth by measuring device. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims at providing a kind of elastic knitted fabric surface coefficient of friction measuring device to solve the technical problem that the existing measuring device uses clamping plate and fixing plate to fix cloth, which may cause wrinkles in the sliding process of the two groups of cloth.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a kind of elastic knitted fabric surface friction coefficient's measuring device, including measuring host and measuring body, the side of the measuring host is equipped with control box, the top of the measuring host is provided with traction rope, the top of the measuring host is equipped with measuring body, the top of the measuring host is equipped with two groups of hydraulic cylinders, the bottom of one group of the hydraulic cylinders is provided with fixed block, the end of the measuring host is equipped with third fixer, the top of the third fixer is provided with second fixed plate, the top of the measuring body is equipped with first fixer and second fixer, the end of the measuring body is provided with second rotating rod, and second rotating rod penetrates the end of first fixer and second fixer, the top of first fixer and second fixer is provided with first fixed plate.

[0007] By adopting the above technical scheme, the third rotating rod drives the third fixer by the thread between the third rotating rod and the third fixer, so that the third fixer tightens the cloth, and then the first fixer and the second fixer fix the two ends of the cloth respectively, the second rotating rod is rotated, and the thread on the two ends of the second rotating rod is opposite, so that the rotating second rotating rod drives the first fixer and the second fixer to move synchronously, and the cloth laid on the bottom of the measuring body is tightened.

[0008] The utility model further sets up, the end of the measuring body is equipped with the hanging ring, and the end of the traction rope is connected with the hook.

[0009] By adopting the above technical scheme, when the cloth laid on the bottom of the measuring body is fixed, the hook at the end of the traction rope is installed on the hanging ring at the end of the measuring body, and the traction rope pulls the measuring body at a constant speed.

[0010] The utility model further sets up, the top of the first fixed plate is equipped with the first rotating rod, and the first rotating rod is connected with the first fixed plate through thread, and one side of the measuring body is equipped with the limiting column.

[0011] By adopting the above technical scheme, the rotation of the first rotating rod on the top of the second fixer makes the first fixed plate on the top of the second fixer move downward and press the cloth together with the second fixer, and the limiting column limits the first fixed plate to prevent the limiting column from deviating during movement.

[0012] The utility model further sets up, the bottom of the first fixed plate is equipped with the protruding block, and the top of the first fixer is provided with the recess.

[0013] By adopting the above technical scheme, the first rotating rod drives the first fixed plate to press the cloth downward, so that the protruding block at the bottom of the first fixed plate extrudes the cloth into the recess on the top of the first fixer, and the fixed pad at the end of the first fixer and the first fixed plate clamps the cloth.

[0014] The present invention is further configured such that fixing pads are installed at the ends of the first fixing plate and the first fixing device.

[0015] By adopting the above technical solution, the first fixing device and the fixing pad at the end of the first fixing plate clamp the fabric, thereby increasing the fixing stability of the first fixing plate on the fabric.

[0016] The present invention is further configured such that a hydraulic rod is installed on the top of the third fixture, and the output end of the hydraulic rod is connected to the second fixing plate.

[0017] By adopting the above technical solution, the hydraulic cylinder pushes the second fixing plate downward to move, so that the second fixing plate squeezes and fixes the end of the fabric.

[0018] The present invention is further configured such that a third rotating rod is installed at one end of the measuring host, and the third rotating rod is connected to the end of the third fixing device, and the third rotating rod is threadedly connected to the end of the third fixing device.

[0019] By adopting the above technical solution, when the third rotating rod is rotated, the third rotating rod drives the third fixing device to move, so that the third fixing device can tighten the fabric laid on the top of the measuring host.

[0020] The present invention is further configured such that the upper surface of the third fixture is flush with the top plane of the measuring host.

[0021] By adopting the above technical solution, when the third fixing device tightens the fabric laid on top of the measuring host, the fabric is always placed horizontally, which facilitates the measuring host and the measuring body to measure the friction coefficient of the fabric.

[0022] In summary, the present invention has the following main advantages:

[0023] This invention solves the technical problem of wrinkles appearing on the two sets of fabric during sliding caused by the existing measuring device's method of fixing the fabric with clamps and fixing plates. The invention is achieved by setting up a measuring host, a measuring body, a first fixer, a first fixing plate, a second fixer, and a third fixer. The third rotating rod drives the third fixer through the thread between the third rotating rod and the third fixer, causing the third fixer to tighten the fabric. Then, the first and second fixers fix the two ends of the fabric respectively. Rotating the second rotating rod, since the threads at both ends of the second rotating rod are opposite, causes the rotating second rotating rod to drive the first and second fixers to move closer or further away simultaneously, thus tightening the fabric laid at the bottom of the measuring body.

[0024] This invention, by setting up protrusions, grooves, and fixing pads, allows the first fixing plate to press the fabric downwards. When the first fixing plate presses the fabric downwards, the protrusions at the bottom of the first fixing plate press the fabric into the groove at the top of the first fixing device. At the same time, the fixing pads at the ends of the first fixing device and the first fixing plate clamp the fabric, effectively preventing the fabric from sliding off. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall device of this utility model;

[0026] Figure 2 This is a side view of the overall device of this utility model;

[0027] Figure 3 This is a schematic diagram of the overall measuring body of this utility model;

[0028] Figure 4 This is a cross-sectional view of the first fixture of this utility model;

[0029] Figure 5 This is a schematic diagram of the third fixture of this utility model;

[0030] Figure 6 This is a structural diagram of the first retainer with a rolling rod according to the present invention.

[0031] In the diagram: 1. Measuring host; 101. Control box; 2. Hydraulic cylinder; 201. Fixing block; 3. Traction rope; 301. Hook; 4. Measuring body; 410. First fixing device; 411. First fixing plate; 412. Protrusion; 413. Groove; 414. Fixing pad; 415. Limiting post; 416. First rotating rod; 420. Second fixing device; 430. Second rotating rod; 440. Limiting rod; 450. Hanging ring; 5. Third fixing device; 501. Second fixing plate; 502. Hydraulic rod; 503. Third rotating rod; 6. Rolling rod; 601. Slope. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] The embodiments of this utility model will be described below based on its overall structure.

[0034] Example 1

[0035] A device for measuring the surface friction coefficient of an elastic knitted fabric, such as Figure 1 - Figure 5As shown, the device includes a measuring host 1 and a measuring body 4. A control box 101 is installed on one side of the measuring host 1. A traction rope 3 is installed on the top of the measuring host 1. The measuring body 4 is installed on the top of the measuring host 1. Two sets of hydraulic cylinders 2 are installed on the top of the measuring host 1. A fixing block 201 is installed at the bottom of one set of hydraulic cylinders 2. A third fixing device 5 is installed at the end of the measuring host 1. A second fixing plate 501 is installed on the top of the third fixing device 5. A first fixing device 410 and a second fixing device 420 are installed on the top of the measuring body 4. A second rotating rod 430 is installed at the end of the measuring body 4, and the second rotating rod 430 passes through the first fixing device 410 and the second fixing device 420. At the end of 0, the top of the first fixing device 410 and the second fixing device 420 are provided with a first fixing plate 411. The third rotating rod 503 drives the third fixing device 5 through the thread between the third rotating rod and the third fixing device 503, so that the third fixing device 5 tightens the fabric. Then, the first fixing device 410 and the second fixing device 420 fix the two ends of the fabric respectively. Rotate the second rotating rod 430. Since the threads at both ends of the second rotating rod 430 are opposite, the rotating second rotating rod 430 drives the first fixing device 410 and the second fixing device 420 to move closer or further away at the same time, so as to tighten the fabric laid at the bottom of the measuring body 4.

[0036] Please see Figure 2 The measuring body 4 is equipped with a hanging ring 450 at one end and a hook 301 is connected to the end of the traction rope 3. After the fabric laid at the bottom of the measuring body 4 is fixed, the hook 301 at the end of the traction rope 3 is installed on the hanging ring 450 at the end of the measuring body 4, and the traction rope 3 pulls the measuring body 4 at a uniform speed.

[0037] Please see Figure 4 A first rotating rod 416 is installed on the top of the first fixing plate 411, and the first rotating rod 416 is connected to the first fixing plate 411 by a thread. A limit post 415 is installed on one side of the measuring body 4. The rotation of the first rotating rod 416 on the top of the second fixing device 420 causes the first fixing plate 411 on the top of the second fixing device 420 to move downward and squeeze and fix the fabric together with the second fixing device 420. At the same time, the limit post 415 limits the first fixing plate 411 to prevent the limit post 415 from deviating during the movement.

[0038] Please see Figure 4 The bottom of the first fixing plate 411 is equipped with a protrusion 412, and the top of the first fixing device 410 is provided with a groove 413. The first rotating rod 416 drives the first fixing plate 411 to press the fabric downward, so that the protrusion 412 at the bottom of the first fixing plate 411 presses the fabric into the groove 413 at the top of the first fixing device 410. The fixing pads 414 at the ends of the first fixing device 410 and the first fixing plate 411 clamp the fabric.

[0039] Please see Figure 4 Fixing pads 414 are installed at the ends of the first fixing plate 411 and the first fixing device 410. The first fixing device 410 and the fixing pads 414 at the ends of the first fixing plate 411 clamp the fabric, thereby increasing the fixing stability of the first fixing plate 411 on the fabric.

[0040] Please see Figure 5 A hydraulic rod 502 is installed on the top of the third fixture 5, and the output end of the hydraulic rod 502 is connected to the second fixing plate 501. The hydraulic cylinder 502 pushes the second fixing plate 501 downward to move, so that the second fixing plate 501 squeezes and fixes the end of the fabric.

[0041] Please see Figure 1 A third rotating rod 503 is installed at one end of the measuring host 1, and the third rotating rod 503 is connected to the end of the third fixing device 5. The third rotating rod 503 is threadedly connected to the end of the third fixing device 5. When the third rotating rod 503 is rotated, the third rotating rod 503 drives the third fixing device 5 to move, so that the third fixing device 5 tightens the fabric laid on the top of the measuring host 1.

[0042] Please see Figure 2 The upper surface of the third fixture 5 is flush with the top plane of the measuring host 1. When the third fixture 5 tightens the fabric laid on the top of the measuring host 1, the fabric is always placed horizontally, which makes it convenient for the measuring host 1 and the measuring body 4 to measure the friction coefficient of the fabric.

[0043] Example 2

[0044] A device for measuring the surface friction coefficient of an elastic knitted fabric, such as Figure 6 As shown, the technical solution and parts of this embodiment are basically the same as those of Embodiment 1. The technically similar parts will not be described again here. The difference is that the right-angled edges at the bottom of both sides of the measuring body 4 are set as slopes 601, and the top corners are equipped with rolling rods 6. When the fabric laid on the bottom of the measuring body 4 is fixed, the second rotating rod 430 is rotated. The second rotating rod 430 drives the first fixing device 410 and the second fixing device 420 to move closer to each other, so that the first fixing device 410 and the second fixing device 420 tighten the two ends of the fabric respectively. The slopes 601 and rolling rods 6 set at both ends of the measuring body 4 can reduce the resistance of the measuring body 4 to the fabric when the fabric is tightened, so that the fabric is tightened more evenly.

[0045] The working principle of this utility model is as follows: First, a set of fabric is laid on the top of the measuring host 1. The hydraulic cylinder 2 fixes one end of the fabric through the fixing block 201. Then, the other end of the fabric is placed in the gap between the third fixing device 5 and the second fixing plate 501. The hydraulic rod 502 pushes the second fixing plate 501 downward, so that the protrusion 412 at the bottom of the second fixing plate 501 squeezes and fixes the fabric into the groove 413 of the third fixing device 5. At the same time, the fixing pads 4 at the ends of the third fixing device 5 and the second fixing plate 501 are fixed. 14. The fabric is clamped, and then the third rotating rod 503 is rotated. The third rotating rod 503 drives the third fixing device 5 through the thread between the third rotating rod 503 and the third fixing device 5. The third fixing device 5 pulls the fabric taut, so that the fabric is laid flat on the top of the measuring host 1. Then, the same batch of fabric is laid on the bottom of the measuring body 4. First, one end of the fabric is placed flat on the top of the first fixing device 410. The first rotating rod 416 is rotated, so that the first rotating rod 416 drives the first fixing plate 411 to squeeze downward. Pressing the fabric causes the protrusion 412 at the bottom of the first fixing plate 411 to squeeze the fabric into the groove 413 at the top of the first fixing device 410. The fixing pads 414 at the ends of the first fixing device 410 and the first fixing plate 411 clamp the fabric. Then, the other end of the fabric is placed in the second fixing device 420. The first rotating rod 416 at the top of the second fixing device 420 is rotated, causing the first fixing plate 411 at the top of the second fixing device 420 to move downward and press and fix the fabric together with the second fixing device 420. After the fabric fixing operation is completed, the second rotating rod 430 is rotated. Since the threads at both ends of the second rotating rod 430 are opposite, the rotating second rotating rod 430 causes the first fixing device 410 and the second fixing device 420 to move closer or further away at the same time, tightening the fabric laid at the bottom of the measuring body 4. Then, the operator adjusts the traction speed of the traction rope 3 through the control box 101. The traction rope 3 pulls the measuring body 4 at a uniform speed, so that the measuring host 1 detects the coefficient of friction of the sliding of two sets of the same batch of fabric.

[0046] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A device for measuring the coefficient of friction of the surface of an elastic knitted fabric, comprising a measuring main unit (1) and a measuring body (4), characterized in that: The side of the measuring host (1) is provided with a control box (101), the top of the measuring host (1) is provided with a traction rope (3), the top of the measuring host (1) is provided with a measuring body (4), the top of the measuring host (1) is provided with two groups of hydraulic cylinders (2), the bottom end of one group of the hydraulic cylinders (2) is provided with a fixed block (201), the end of the measuring host (1) is provided with a third fixator (5), the top of the third fixator (5) is provided with a second fixed plate (501), the top of the measuring body (4) is provided with a first fixator (410) and a second fixator (420), the end of the measuring body (4) is provided with a second rotating rod (430), and the second rotating rod (430) penetrates the ends of the first fixator (410) and the second fixator (420), and the top of the first fixator (410) and the second fixator (420) is provided with a first fixed plate (411).

2. A device for measuring the coefficient of friction of a surface of an elastic knitted fabric according to claim 1, characterized in that: The end of the measuring body (4) is provided with a hanging ring (450), and the end of the traction rope (3) is connected with a hook (301).

3. The apparatus for measuring the coefficient of friction of a stretch fabric surface of claim 1, wherein: The top of the first fixed plate (411) is provided with a first rotating rod (416), and the first rotating rod (416) is connected with the first fixed plate (411) through threads, and the side of the measuring body (4) is provided with a limiting column (415).

4. The apparatus for measuring the coefficient of friction of a stretch fabric surface of claim 1, wherein: The bottom of the first fixed plate (411) is provided with a convex block (412), and the top of the first fixator (410) is provided with a groove (413).

5. The apparatus for measuring the coefficient of friction of a stretch fabric surface of claim 1, wherein: The end of the first fixed plate (411) and the first fixator (410) is provided with a fixed pad (414).

6. The apparatus for measuring the coefficient of friction of a stretch fabric surface of claim 1, wherein: The top of the third fixator (5) is provided with a hydraulic rod (502), and the output end of the hydraulic rod (502) is connected with the second fixed plate (501).

7. The apparatus for measuring the coefficient of friction of a stretch fabric surface of claim 1, wherein: One end of the measuring host (1) is provided with a third rotating rod (503), the third rotating rod (503) is connected with the end of the third fixator (5), and the third rotating rod (503) is connected with the end of the third fixator (5) through threads.

8. The apparatus for measuring the coefficient of friction of a stretch fabric surface of claim 1, wherein: The upper surface of the third fixator (5) is flush with the top of the measuring host (1).

9. The apparatus for measuring the coefficient of friction of a stretch fabric surface of claim 1, wherein: The two ends of the measuring body (4) are movably provided with rolling rods (6).

10. The apparatus for measuring the coefficient of friction of a stretch fabric surface of claim 1, wherein: The two sides of the bottom of the measuring body (4) are provided with slope surfaces (601).

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