A simple detection method and device for the anti-scratch and anti-puncture performance of rubber materials

Abstract

The present invention discloses a simple detection method and device for the anti-scratch and anti-puncture performance of a rubber material, and belongs to the field of detection of the performance of rubber materials and products. A sharp knife is used to form an angle of 45 degrees with the test sample, and under a certain puncture force, the sample is pulled out horizontally by at least 80.0 mm. Each sample is tested five times in the longitudinal and latitudinal directions, with an adjacent test distance of 30 mm. Each test is scratched ten times to measure the scratching depth and judge the anti-scratch and anti-puncture effect. The device includes: a base plate that can be fixed on an operating table, a horizontal and vertical sliding bar baffle on the base plate, a ruler on the base plate and the sliding bar baffle respectively, a tool clamp support rod, a tool clamp, a tool clamp fixing bolt, a puncture force weight, a puncture force weight fixing bolt, an N-T type blade and an angle plate for measuring the blade. The present invention can simultaneously detect the anti-scratch and anti-puncture performance of rubber materials and products, and the manual operation is simple and quick; the device has a simple structure and low cost, and can be used for laboratory and on-site detection.

Description

Technical Field

[0001] The invention relates to a simple detection method and device for the anti-scratch and anti-puncture performance of a rubber material, belonging to the field of detection of rubber material and product performance. Background Art

[0002] With the development of human civilization, irreplaceable rubber materials have been widely used.

[0003] However, the bottleneck problem in its actual application is that rubber materials and products are easily damaged by sharp and angular objects, such as various garbage and branches, tree roots, stone rubble, ironware, glass, porcelain pieces, etc., which can cause scratches and punctures, especially in water environments. This kind of problem is common in rubber products, and the consequences are very serious, such as rubber dams, tires, hoses, rubber shoes, conveyor belts, films, rubber fenders and various rubber airbags / bags.

[0004] Cai Ruikai et al. disclosed a "device for detecting the anti-puncture performance of soles (CN 104720193 B)", which "comprises a fixing mechanism, a piercing mechanism, a pressure applying mechanism and a control mechanism; the fixing mechanism is used to fix the sole to be detected and align the sole to be detected with the piercing mechanism; the piercing mechanism gradually approaches the sole to be detected under the action of the pressure applying mechanism, and applies pressure to the sole to be detected until it is pierced; the control mechanism is used to control the action of the pressure applying mechanism and monitor and record the detection process. The device detects the maximum piercing force of the sole, thereby realizing the evaluation of the anti-puncture performance of the sole."

[0005] Dong Chaodi disclosed a "safety shoe anti-puncture testing machine (CN 208243018 U)", "whose structure includes a puncture top column, a puncture treatment box, a connecting column, a puncture main shaft, a wire, a puncture needle, a bottom plate, a support plate, a bottom foot, a control switch, a control panel, a liquid crystal display, a control box, and an alarm sounder. The puncture top column runs through the interior of the puncture treatment box. When the shoe is punctured a certain number of times within a specified time, the external control box will transmit the information to the internal control circuit board through the external interface, and the information will be transmitted to the control circuit board through the processing of the voice information processor. After the electromagnet is powered, the suction plate is sucked down, so that the suction plate transmits the information to the speaker through the spring and the connecting plate to indicate whether the shoe puncture meets the requirements."

[0006] Wang Feifei et al. disclosed an "anti-cut performance detection device (CN 208076318 U)", "including a base, a longitudinal bracket installed on the base, a transverse bracket installed on the longitudinal bracket, and a positioning bracket installed on the transverse bracket, the stress strain sensor and the tool chuck are respectively arranged on the positioning bracket, the tool is clamped on the tool chuck, the fixture is arranged on the base, the tool is a disc-shaped tool, and the fixture is provided with a groove corresponding to the tool. The utility model anti-cut performance detection device continuously cuts the tested protective material through the disc-shaped tool, and detects the maximum cutting force, thereby realizing the evaluation of the anti-cut ability of the protective material."

[0007] Such devices are complex in structure and high in cost. They cannot be tested without electricity on site and can only perform single performance tests.

[0008] The advantages of the present invention are that the anti-scratch and anti-puncture properties of rubber materials can be tested simultaneously, and the manual operation is simple and quick; the device has a simple structure and low cost, and can be used for laboratory and on-site testing. Summary of the invention

[0009] The purpose of the present invention is to provide a simple detection method and device for the anti-scratch and anti-puncture performance of rubber materials, which belongs to the field of detection of rubber materials and product performance. It uses a sharp knife to form an angle of 45 degrees with the test sample, and under a certain puncture force, the sample is pulled horizontally at least 80.0mm. Each sample is tested five times in the longitudinal and latitudinal directions, and the adjacent test distance is 30mm. Each test is scratched ten times to measure the scratching depth and judge the anti-scratch and anti-puncture effect. The blade needs to be replaced for each puncture. The device includes: a base plate that can be fixed on the operating table, horizontal and vertical sliding bar baffles on the base plate, rulers on the base plate and the sliding bar baffle respectively, a tool clamp support rod, a tool clamp, a tool clamp fixing bolt, a puncture force weight, a puncture force weight fixing bolt, an NT-type blade and an angle disk for measuring the blade.

[0010] The invention is used for detecting the anti-scratch and anti-puncture performance of rubber materials, and can also be used for detecting rubber products such as rubber dams, tires, rubber hoses, rubber shoes, conveyor belts, films, rubber fenders and various rubber air bags / bags.

[0011] The objective of the present invention is achieved through the following technical solutions:

[0012] A simple detection method for the anti-scratch and anti-puncture performance of a rubber material is used in a detection device. The detection method is as follows: a blade and a test sample are at an angle of 45 degrees, and under the action of a puncture force, the test sample is pulled out at least 80.0 mm in the horizontal direction; the test sample is tested five times in each of the longitudinal and latitudinal directions, with an adjacent test distance of 30 mm; after the test, the anti-scratch and anti-puncture effect is judged based on the measured scratch depth.

[0013] A simple detection device for the anti-scratch and anti-puncture performance of a rubber material, the detection device comprising a base plate, a scale, a slide bar baffle, a piercing force weight, a tool clamp support rod, a tool clamp fixing bolt, a tool clamp, an NT blade, an angle plate, a piercing force weight fixing bolt and a device fixing bolt hole; wherein the base plate is square, and device fixing bolt holes are arranged at four corners so that the base plate can be fixed to an operating table by bolts; a rectangular slide bar baffle is respectively arranged at the transverse and longitudinal edges of the base plate, and the two slide bar baffles form an angle of 90 degrees, the transverse slide bar baffle is fixed to the base plate, and a square through hole is arranged at one end of the longitudinal slide bar baffle along the transverse direction so as to be slidably connected to the transverse slide bar baffle, and a fixing bolt hole is arranged at the upper part of the square through hole, and the longitudinal slide bar baffle is fastened to the transverse slide bar baffle by the fixing bolt plate; a longitudinal scale is engraved on the inner side of the longitudinal slide bar baffle; a transverse scale is engraved on the base plate in a direction parallel to the transverse slide bar baffle; one end of the transverse scale on the base plate is fixedly connected to a base, one side of the base is connected to an angle disk by bolts, the angle disk is vertically overlapped with the transverse slide bar baffle, and the other side of the base is fixedly connected to a tool clamp support rod, the tool clamp support rod 5 is penetrated and connected with a piercing force weight, the piercing force method weight is fixedly connected to the tool clamp outside, and the piercing force method weight and the tool clamp center are provided with square connecting holes to slide and connect the tool clamp support rod and the NT blade respectively, the piercing force method weight is fastened to the tool clamp support rod by the piercing force method code fixing bolt at the inner center position of the piercing force method weight, and the NT blade is fastened to the tool clamp in the outer center position of the tool clamp by setting a tool clamp fixing bolt.

[0014] The simple detection device for the anti-scratch and anti-puncture performance of the rubber material, the puncture force weight is set to multiple models, preferably 0.21Kg, 0.31Kg and 0.41Kg; the puncture force weight and the self-weight of the tool holder constitute the puncture force.

[0015] In the simple detection device for the anti-scratch and anti-puncture performance of the rubber material, the tool holder and the NT blade have the same shape, including rectangular, elliptical or circular.

[0016] The simple detection device for the anti-scratch and anti-puncture performance of the rubber material, the blade of the NT type blade should be replaced after each test.

[0017] The advantages and effects of the present invention are:

[0018] 1) It can simultaneously detect the anti-scratch and anti-puncture properties of rubber materials and products;

[0019] 2) Manual operation is simple and quick;

[0020] 3) The device has a simple structure and low cost, and can be used for laboratory and field testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1A tool device for testing anti-scratch and anti-puncture; marked in the figure: 1-base plate, 2-ruler, 3-slide bar baffle, 4-cutting force weight, 5-tool clamp support rod, 6-tool clamp fixing bolt, 7-tool clamp, 8-NT blade, 9-angle plate, 10-cutting force weight fixing bolt, 11-device fixing bolt hole.

[0022] Figure 2 This is a diagram illustrating the distribution of scratch and puncture resistance tests. DETAILED DESCRIPTION

[0023] The technical solution of this application is described in detail below with reference to the accompanying drawings.

[0024] The invention is used for detecting the anti-scratch and anti-puncture performance of rubber materials, and can also be used for detecting rubber products such as rubber dams, tires, rubber hoses, rubber shoes, conveyor belts, films, rubber fenders and various rubber air bags / bags.

[0025] The detection method of the present invention is as follows: the blade and the test sample are at an angle of 45 degrees, and under the action of the piercing force, the test sample is pulled out at least 80.0 mm in the horizontal direction; the test sample is tested five times in the longitudinal and latitudinal directions, and the adjacent test distance is 30 mm; after the test, the anti-scratch and anti-puncture effect is judged according to the measured scratch depth.

[0026] like Figure 1 As shown, the detection device of the present invention comprises a base plate 1, a scale 2, a slide bar baffle 3, a piercing force weight 4, a tool clamp support rod 5, a tool clamp fixing bolt 6, a tool clamp 7, an NT blade 8, an angle plate 9, a piercing force weight fixing bolt 10 and a device fixing bolt hole 11; wherein the base plate is square, and device fixing bolt holes are arranged at four corners so that the base plate can be fixed on the operating table by bolts; a rectangular slide bar baffle is arranged on each of the horizontal and vertical edges of the base plate, and the two slide bar baffles form an angle of 90 degrees, the horizontal slide bar baffle is fixed on the base plate, and a square through hole is arranged at one end of the vertical slide bar baffle along the horizontal direction so as to be slidably connected to the horizontal slide bar baffle, and a fixing bolt hole is arranged on the upper part of the square through hole, and the vertical slide bar baffle is fastened to the horizontal slide bar baffle by fixing bolts; A longitudinal scale is engraved on the inner side of the longitudinal slide bar baffle; a transverse scale is engraved on the base plate in a direction parallel to the transverse slide bar baffle; one end of the transverse scale on the base plate is fixedly connected to a base, one side of the base is connected to an angle disk by bolts, the angle disk is vertically overlapped with the transverse slide bar baffle, and the other side of the base is fixedly connected to a tool clamp support rod, the tool clamp support rod 5 is penetrated and connected with a piercing force weight, the piercing force weight is fixedly connected to the tool clamp outside, and square connecting holes are provided at the center positions of the piercing force weight and the tool clamp to slideably connect the tool clamp support rod and the NT blade respectively, the piercing force weight is fastened to the tool clamp support rod by a piercing force code fixing bolt at the inner center position of the piercing force weight, and the NT blade is fastened to the tool clamp in the outer center position of the tool clamp by setting a tool clamp fixing bolt.

[0027] Among them, the piercing force weight is set to a variety of models, preferably 0.21Kg, 0.31Kg and 0.41Kg; the piercing force weight and the weight of the tool holder constitute the piercing force.

[0028] The tool holder and NT blade have the same shape, including rectangular, oval or round. The blade of the NT blade should be replaced after each test.

[0029] The following is combined with Figure 2 The operation process of the device of the present invention is described in detail.

[0030] Step 1: Sample warp test

[0031] 1) Place the prepared 200mm×200mm rubber sample with a thickness greater than 5mm on the base plate of the device. The two adjacent sides of the sample should be close to the sliding bar baffle positioned according to the ruler. The sample should be marked with pre-drawn horizontal and vertical pre-test lines 1, and the adjacent marking lines are 30mm (such as Figure 2 );

[0032] 2) Select the cutting force weight that matches the tool holder and put it on the tool holder support rod;

[0033] 3) Lift the tool clamp support rod together with the cutting force weight and tool clamp, and insert the NT blade into the tool clamp;

[0034] 4) Gently touch the tip of the tool to the sample to be tested, fix the angle plate to 45°, adjust the position of the piercing force weight on the tool clamp support rod and the depth of the NT blade inserted into the tool clamp, so that the NT blade is at a 45° angle to the sample plane on the substrate, and tighten the tool clamp fixing bolts and the piercing force weight fixing bolts;

[0035] 5) Put down the adjusted knife, press the blade on the sample surface, pull the sample outward 80mm along the pre-drawn pre-test mark line 1 at a speed of 50mm / min, and make the first cut of the first scratch and puncture test. Use a steel ruler to measure the depth of the blade cut and record it;

[0036] 6) Lift the tool clamp support rod together with the cutting force weight and tool clamp, break off the NT blade and replace it with a new blade (the NT blade can be broken off and replaced with a 10-edge new blade);

[0037] 7) Re-adjust the position of the piercing force weight on the tool clamp support rod and the depth of the NT blade inserted into the tool clamp, so that the NT blade is at a 45° angle to the sample plane on the substrate, and then tighten the tool clamp fixing bolts and the piercing force weight fixing bolts;

[0038] 8) Put down the adjusted knife, press the blade on the sample surface (the position of the first scratch and puncture test), pull the sample outward 80mm along the pre-drawn pre-test mark line, and make the second cut of the first scratch and puncture test. Use a steel ruler to measure the depth of the blade puncture and record it;

[0039] 9) Perform the first scratch and puncture test with 3 to 5 cuts according to steps 6) to 8);

[0040] 10) Remove the NT-type blade, replace it with a new blade, and perform the first cut and puncture test again at the position of the last 5-cut cut and puncture test with 6 to 10 cuts (the test is terminated when any number of cuts penetrates the sample, and the sample thickness must be greater than 5mm, generally 5mm, 10mm, 15mm and 20mm are used);

[0041] 11) Replace the new NT blade, place the blade along the pre-test mark line 2, and perform the second test according to the first test steps (same for 10 blades);

[0042] 12) According to the second test steps, carry out the third to fifth tests of the sample in the longitudinal direction.

[0043] Step 2: Sample latitudinal test

[0044] The sample to be tested is adjusted to a direction perpendicular to the warp test and placed on the substrate of the device. According to the sample warp test steps, the sample weft test is performed five times.

[0045] Step 3: Sample test data processing

[0046] The data of each test / knife is added to Table 1, and the average number of knives in the warp and weft directions of the punctures is described in words to indicate the anti-scratch and anti-puncture performance of the rubber material. Table 2 is the test data report format.

[0047] Table 1 Raw data of the anti-scratch and anti-puncture test of the samples

[0048]

[0049] Table 2 Scratch and puncture resistance test data report of samples

[0050]

[0051] Note: Data 1 to 5 in the table are the average values ​​of warp and weft directions. The test will be terminated when any number of cuts penetrates the sample.

[0052] Example 1

[0053] Use 200mm×200mm×15mm EPDM film with four fabrics and five glues as the test sample, and use a whiteboard pen to draw horizontal and vertical pre-test marking lines, with adjacent marking lines 30mm apart (such as Figure 2 ). According to the specific implementation method, the puncture force is 0.31Kg. The anti-scratch and anti-puncture test results are shown in Table 3. It can be seen that the sample can be cut and punctured by taking an average of 6.8 times.

[0054] Example 2

[0055] Use 200mm×200mm×15mm four-cloth five-glue EPDM film with armor layer (armor layer 1.2mm below the film surface layer 2mm) as the test sample, and draw horizontal and vertical pre-test marking lines with a whiteboard pen, with adjacent marking lines 30mm apart (such as Figure 2 ). According to the specific implementation method, the test was carried out, and the puncture force was 0.31Kg. The results are shown in Table 3. It can be seen that the EPDM film with the armor layer effectively prevents scratching and puncturing. After the test, the sample was only punctured to 4.35mm.

[0056] Table 3 Test results of samples in Example 1 and Example 2

[0057]

[0058] From the specific implementation methods and implementation results, we can see that:

[0059] The method and device of the present invention can simultaneously detect the anti-scratch and anti-puncture properties of rubber materials and products; the manual operation is simple and quick; the device has a simple structure and low cost, and can be used for laboratory and on-site testing.

[0060] At the same time, it will form a new economic growth point, serve as a reference for the performance testing of materials and large rubber products and the development of related theories and material applications, and has important social and economic benefits.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A simple detection device for the anti-scratch and anti-puncture performance of a rubber material, the detection device comprising a base plate (1), a scale (2), a slide bar baffle (3), a piercing force weight (4), a tool clamp support rod (5), a tool clamp fixing bolt (6), a tool clamp (7), an NT blade (8), an angle plate (9), a piercing force weight fixing bolt (10) and a device fixing bolt hole (11); wherein: The base plate (1) is square, and four corners are provided with fixing bolt holes (11) so that the base plate can be fixed on the operating table by bolts; a rectangular parallelepiped sliding bar baffle (3) is respectively provided on the transverse and longitudinal edges of the base plate (1), and the two sliding bar baffles form a 90-degree angle, the transverse sliding bar baffle is fixed on the base plate (1), and one end of the longitudinal sliding bar baffle is provided with a square through hole in the transverse direction so as to be slidably connected to the transverse sliding bar baffle, and a fixing bolt hole is provided on the upper part of the square through hole, and the longitudinal sliding bar baffle is fastened to the transverse sliding bar baffle by fixing bolts; a longitudinal scale is engraved on the inner side of the longitudinal sliding bar baffle; a transverse scale is engraved on the base plate in a direction parallel to the transverse sliding bar baffle; one end of the transverse scale on the base plate is fixedly connected to a base, and one side of the base is connected to an angle plate (9) by bolts. ), the angle disk is vertically overlapped with the transverse sliding rod baffle, the other side of the base is fixedly connected with a tool clamp support rod (5), the tool clamp support rod (5) is penetrated and connected with a piercing force weight (4), the piercing force weight (4) is fixedly connected to the tool clamp (7) outside, the piercing force weight (4) and the tool clamp (7) are both provided with square connection holes at the center positions to respectively slide and connect the tool clamp support rod (5) and the NT blade (8), the piercing force weight (4) is fastened to the tool clamp support rod (5) at the center position of the inner side by a piercing force weight fixing bolt (10), the NT blade (8) is fastened to the tool clamp (7) at the center position of the outer side of the tool clamp (7) by setting a tool clamp (7) fixing bolt (6), and the fixed angle disk is 45 degrees.

2. A simple detection device for the anti-scratch and anti-puncture performance of a rubber material according to claim 1, characterized in that: The piercing force weight is set to various models of 0.21Kg, 0.31Kg or 0.41Kg; the deadweight of the piercing force weight (4) and the tool holder (7) constitutes the piercing force.

3. A simple detection device for the anti-scratch and anti-puncture performance of a rubber material according to claim 2, characterized in that: The tool holder (7) and the NT blade (8) have the same shape, and both are rectangular, elliptical or circular.

4. A simple detection device for the anti-scratch and anti-puncture performance of a rubber material according to claim 2, characterized in that: The NT blade (8) should be replaced after each test.

5. The detection method of the detection device according to claim 1, characterized in that: The blade is at an angle of 45 degrees to the test sample. Under the action of the puncture force, the test sample is pulled out at least 80.0 mm in the horizontal direction. The test sample is tested five times in the longitude and latitude directions, with an adjacent test distance of 30 mm. After the test, the anti-scratch and anti-puncture effect is judged based on the measured scratch depth.

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