A mechanical properties testing tool for sunshade fabric

Abstract

The present application discloses a mechanical property testing tool for sunshade fabrics, which belongs to the technical field of fabric testing. It mainly includes a base, on which a top plate is provided, on which a cylinder is fixedly installed; a panel, on which the two sides of the base are fixedly installed, a slide rail is fixedly installed on the corresponding side of the panel, a slider is slidably installed on the slide rail, and support steps are provided at both ends of the panel; a clamp, which is fixedly installed on the slider, a connecting piece is fixedly installed between the clamps, and an electromagnet sheet is installed between the connecting piece and the support step. The mechanical property testing tool for sunshade fabrics of the present application is provided with a limit groove, a spring pin, a clamp and a detection component, and when the sunshade fabric is subjected to a bursting test, after the dry sample fabric is tested, the sample fabric is soaked, and then the bursting test is carried out, thereby completing the detection of sample fabrics under different environments.

Description

Technical Field

[0001] The present application relates to the technical field of fabric testing, and in particular to a tool for testing the mechanical properties of sunshade fabric. Background Art

[0002] Sunshade fabrics are a type of textile material specially designed to block sunlight and regulate indoor light and temperature. They usually have the properties of shading, heat insulation, and UV protection, and can effectively reduce the impact of direct sunlight on the indoor environment;

[0003] In order to ensure the quality of sunshade fabric, after production is completed, the sunshade fabric needs to be subjected to different mechanical property tests through various mechanical equipment, usually including tear performance test, wear resistance test, etc. Among the many mechanical performance tests, the bursting performance test of sunshade fabric is one of the indispensable mechanical performance tests. Its purpose is to detect the fabric's anti-burst performance. When facing a certain impact force, observe the degree of deformation of the fabric. At the same time, the fabric may be broken during the deformation process. In addition, sunshade fabrics of the same material have different anti-burst performance due to their different weaving densities.

[0004] Existing sunshade fabric mechanical properties testing tooling usually consists of a fixture, a driving part and a detection part. When testing the sunshade fabric, the staff first fixes the sunshade fabric sample with a fixture, and then starts the driving part. The driving part starts to drive the detection part to move at a constant speed toward the position of the fabric sample until the detection part breaks the fabric sample.

[0005] Although the above-mentioned device completes the bursting test of the sunshade fabric through the sunshade fabric mechanical properties testing tool, in actual use, the sunshade may be working outdoors. Due to changes in outdoor weather, the originally dry sunshade may be soaked by rain. However, when testing the sunshade fabric after production, usually only the sample fabric in a dry environment is tested, and for the sample fabric in a humid environment, its bursting performance needs further testing. Therefore, it is necessary to provide a sunshade fabric mechanical properties testing tool to solve the above problem.

[0006] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0007] Based on the above problems existing in the prior art, the problem to be solved by the present application is: to provide a sunshade fabric mechanical properties testing tool to solve the problem that wet sample fabrics cannot be tested.

[0008] The technical solution adopted by the present application to solve its technical problems is: a sunshade fabric mechanical properties testing tool, including a base, a top plate is arranged on the base, and a cylinder is fixedly installed on the top plate; a panel, the panel is fixedly installed on both sides of the base, a slide rail is fixedly installed on the corresponding side of the panel, a slider is slidably installed on the slide rail, and support steps are arranged at the upper and lower ends of the panel; a clamp is fixedly installed on the slider, a connecting piece is fixedly installed between the clamps, and an electromagnet sheet is installed between the connecting piece and the support step; a flooded area, which is arranged on the panel A position close to the bottom of the slide rail; a detection component, which is installed at the bottom of the top plate, and the detection component includes a frame fixedly installed at the bottom of the top plate; a supporting member, which is fixedly installed on the output end of the cylinder; a sleeve, which is sleeved on the surface of the supporting member, and the interior of the sleeve is hollow, a first electromagnet ring is fixedly installed in the sleeve, a second electromagnet ring is fixedly installed at the bottom of the supporting member, and a detection hammer is fixedly installed at the bottom of the sleeve; a limiting groove, which is opened on the inner surface of the frame; a spring pin, which is movably installed on the sleeve.

[0009] Furthermore, the limiting groove includes a first slideway opened on the inner surface of the frame, one end of the spring pin is supported in the first slideway, a second slideway is arranged at the end of the first slideway, and a first stationary point is arranged at a position where the first slideway is connected to the second slideway.

[0010] Furthermore, the bottom height of the second slideway is lower than the bottom height of the first slideway and forms a blocking step.

[0011] Furthermore, a PLC control system is provided in the base, and critical point one and critical point two which gradually move away from the supporting end are provided in the first slideway, and a first switch is provided at the position of critical point two, and the first switch is electrically connected to the electromagnet sheet.

[0012] Furthermore, a third slide is provided at the end position of the second slide, a second stationary point is provided at the connection between the second slide and the third slide, a fourth slide is provided at the end of the third slide, a third stationary point is provided at the position where the third slide and the fourth slide are connected, and the end of the fourth slide is connected to the end of the first slide.

[0013] Furthermore, the bottom height of the third slideway is lower than the bottom height of the second slideway and also forms the blocking step.

[0014] Furthermore, a second switch is provided at the second stationary point, and the second switch is electrically connected to the electromagnet sheet. The horizontal height position of the third stationary point is higher than the horizontal height position of the first stationary point and lower than the horizontal height position of the critical point two. A third switch is provided at the third stationary point, and the third switch is electrically connected to the first electromagnet ring and the second electromagnet ring.

[0015] Furthermore, the end of the fourth slide is connected to the first slide, and a transition slope is provided at the position where the fourth slide is connected to the first slide, and the highest position of the transition slope is higher than the bottom height of the groove of the first slide and forms a transition step; a fourth switch is provided in the first slide, and the fourth switch is electrically connected to the first electromagnet ring and the second electromagnet ring.

[0016] Furthermore, support columns are fixedly installed on both sides of the base, and the top plate is fixedly installed on the support columns; the sleeve is divided into a first chamber and a second chamber, the first chamber is adapted to the output end of the cylinder, and the second chamber is adapted to the supporting member, and an installation step is provided at the position where the first chamber and the second chamber are connected.

[0017] The beneficial effect of the present application is that the present application provides a sunshade fabric mechanical properties testing tool, which, by setting a limit groove, a spring pin, a clamp and a detection component, can be used for the sunshade fabric bursting test. After the dry sample fabric is tested, the sample fabric is then soaked and then the bursting test is performed again, thereby completing the testing of sample fabrics under different environments.

[0018] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 This is an overall schematic diagram of a sunshade fabric mechanical properties testing tool in this application;

[0021] Figure 2 for Figure 1 Side view of the overall structure;

[0022] Figure 3 for Figure 1 A magnified view of the structure of the middle A area;

[0023] Figure 4 for Figure 1 The overall structure is partially cut away from the rear side view;

[0024] Figure 5 for Figure 4 A magnified view of the structure of the middle B region;

[0025] Figure 6 for Figure 5 Schematic diagram of the overall structure of the middle sleeve after sectioning;

[0026] Figure 7 for Figure 6 Schematic diagram of the middle limit slot structure and the spring pin structure;

[0027] Figure 8 for Figure 1 State change diagram of the fabric detection process.

[0028] Among them, the reference numerals in the figure are:

[0029] 1. Base; 2. Support column; 21. Top plate; 22. Cylinder; 3. Detection component; 31. Frame; 32. Abutment; 33. First electromagnet ring; 4. Enclosure; 41. Slide rail; 42. Slider; 5. Clamp; 51. Support block; 52. Drive unit; 53. Clamping unit; 6. Sleeve; 61. Detection hammer; 7. Support step; 8. Limiting groove; 81. First slideway; 82. Second slideway; 83. Third slideway; 84. Fourth slideway; 85. First stationary point; 86. Second stationary point; 87. Third stationary point; 88. Transition slope; 89. Critical point one; 810. Critical point two; 9. Spring pin. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0032] Embodiment 1: This embodiment mainly introduces the basic structure and working principle of the sunshade fabric mechanical properties testing tool, specifically:

[0033] like Figure 1-Figure 2As shown, the present application provides a sunshade fabric mechanical properties testing tool, including a base 1, which is the support part of the sunshade fabric mechanical properties testing tool, and is usually placed on a flat ground or a workbench to ensure that the sunshade fabric mechanical properties test is carried out stably;

[0034] Support columns 2 are fixedly installed on both sides of the base 1, and a top plate 21 is fixedly installed on the side of the support column 2 away from the base 1. The space between the top plate 21 and the base 1 can be defined as a test area. The inspection of the sunshade fabric is carried out in this area. A cylinder 22 is fixedly installed on the top plate 21. The cylinder 22 is a driving part for the sunshade fabric bursting test. At the same time, the output end of the cylinder 22 passes through the top plate 21 and extends into the test area, so as to facilitate the sunshade fabric bursting performance test;

[0035] like Figure 1 and Figure 3 As shown, enclosures 4 are fixedly installed on both sides of the base 1, and the enclosures 4 are arranged on the inner sides of the support columns 2. The support columns 2 do not occupy the space inside the enclosures 4. At least two groups of vertical slide rails 41 are fixedly installed on the corresponding sides of the two groups of enclosures 4. Slide blocks 42 are slidably installed on the slide rails 41. When subjected to external force, the slide blocks 42 are suitable for vertical sliding on the slide rails 41. Support steps 7 are provided at the upper and lower ends of the enclosures 4. The upper and lower ends of the slide rails 41 are supported on the support steps 7. When the slide block 42 slides, it will not be separated from the slide rail 41 due to the existence of the support steps 7.

[0036] A clamp 5 for clamping the sample fabric is fixedly mounted on the slider 42, and the clamp 5 includes a support block 51 fixedly mounted on the slider 42, and the support block 51 is the connecting part of the clamp 5, a driving part 52 is fixedly mounted on the support block 51, and a clamping part 53 for clamping the sample fabric is mounted on the output end of the driving part 52. In this embodiment, the clamp 5 can be regarded as a mechanical clamp of the prior art, the driving part 52 is the control end part of the mechanical clamp, and the clamping part 53 is the clamping end of the mechanical clamp. In the initial state, the clamping part 53 is in an open state. When testing, the staff can start the clamp 5, and the driving part 52 controls the clamping part 53 to change from the initial open state to a locked state to clamp one end of the sample fabric. In this application, the number of sliders 42 is multiple groups, and the number of clamps 5 is also multiple groups, so as to clamp different positions of the sample fabric and ensure the stability of the sample fabric during the test.

[0037] It should be noted that, due to gravity, in the initial state, the slider 42 is at the bottom of the slide rail 41, and when the slider 42 is subjected to a downward force, it will not move downward any further;

[0038] like Figure 2 , Figure 4-Figure 6 As shown, a detection assembly 3 is installed at the bottom of the top plate 21, and the detection assembly 3 includes a frame 31 fixedly installed at the bottom of the top plate 21, the interior of the frame 31 is hollow and the opening faces downward, and a support member 32 is fixedly installed on the output end of the cylinder 22, the diameter of the support member 32 is larger than the diameter of the output end of the cylinder 22 and forms a mounting step, and a sleeve 6 is sleeved on the outside of the support member 32, and the sleeve 6 is located in the frame 31, the interior of the sleeve 6 is hollow, and the interior of the sleeve 6 is divided from top to bottom into: A first chamber with a smaller diameter and a second chamber with a larger diameter, wherein the first chamber is adapted to the output end of the cylinder 22, and the second chamber is adapted to the abutment 32. In the initial state, the position where the first chamber and the second chamber are connected will overlap at the installation step. When the output end of the cylinder 22 drives the abutment 32 to move upward, the sleeve 6 will move upward synchronously. In this embodiment, the bottom of the abutment 32 abuts against the bottom of the second chamber, so that when the output end of the cylinder 22 drives the abutment 32 to move downward, the abutment 32 will push the sleeve 6 to move downward synchronously.

[0039] Continue to refer Figure 6 , a detection hammer 61 for contacting and pressing the sample fabric is fixedly installed at the bottom of the sleeve 6. When conducting a sunshade fabric bursting performance test, the staff first fixes the sample fabric in the area between the aprons 4 through the clamp 5. The fixed sample fabric is in a horizontal tensioned state. Then the staff starts the cylinder 22. The output end of the cylinder 22 extends to drive the abutment 32 to move downward. The downward movement of the abutment 32 drives the sleeve 6 to move downward. The downward movement of the sleeve 6 drives the detection hammer 61 to move downward synchronously. The detection hammer 61 moves downward and gradually contacts the sample fabric. Under the continuous action of the cylinder 22, the sample fabric will be deformed. When the output end of the cylinder 22 extends to the limit position, if the fabric only produces a large deformation but is not damaged, it means that the fabric has a larger weaving density and better elasticity. If the fabric is broken by the detection hammer 61, it means that its density is smaller and its elasticity is worse. In this way, the sunshade fabric bursting performance test is completed.

[0040] However, if the test is only conducted on the sample fabric in a dry state, the test result will be relatively simple. However, in actual use, the sample fabric is more likely to be in a wet state. In order to make the test results more diversified, in this embodiment, after the sample fabric is tested for the first time, the staff can control the cylinder 22 to drive the detection hammer 61 to return to the initial position, and then manually spray water on the sample fabric to soak the sample fabric, and the sample fabric is changed from the initial dry state to the wet state. Then the staff will start the cylinder 22 again to test the sample fabric in the wet state and observe the deformation of the wet sample fabric under the same stroke. The above method is only one of the many methods for soaking the sample fabric, which will not be elaborated here.

[0041] Embodiment 2: Although the above embodiment completes the bursting performance test of the sample fabric in the dry state and the wet state, the bursting performance will also change accordingly due to the change of the state of the sample fabric, and the different weaving conditions and materials of the fabric will affect the bursting performance of the fabric in the wet state. However, in the above embodiment, after the state of the sample fabric changes, the stroke of the bursting test does not change, but because the fabric is soaked and due to the influence of the weaving material, the ultimate top force of the sample fabric may also increase accordingly. If the fabric is soaked and then hit by the test hammer again with the same stroke, it may still not be broken, and thus the ultimate top force of the sample fabric cannot be tested;

[0042] In order to solve this problem, this embodiment improves the structure of the sleeve 6 on the basis of the above embodiment, specifically:

[0043] First, in this embodiment, the sliders 42 are fixedly connected by a connecting piece, and an electromagnet sheet is installed on one side of the support step 7 corresponding to the connecting piece. Before the test starts, the electromagnet sheet is in a non-powered state, and the slider 42 slides to the bottom of the slide rail 41 due to gravity, and the electromagnet sheets are close to each other. At the beginning of the test, the electromagnet sheet is in a powered state, and the two repel each other. The slider 42 slides to the highest position of the slide rail 41. Even if the slider 42 is subjected to a downward force at this time, it will not move downward due to the repulsive effect of the electromagnet sheets.

[0044] Secondly, in this embodiment, Figure 6As shown, the bottom of the abutment 32 does not contact the bottom of the second chamber, and the bottom of the abutment 32 is located at the lower end position in the second chamber. At the same time, a first electromagnet ring 33 is fixedly installed in the second chamber near the bottom of the abutment 32, and the inner ring of the first electromagnet ring 33 does not protrude from the inner wall of the second chamber. Therefore, when the abutment sleeve 6 is restricted and the abutment 32 continues to move downward, the bottom of the abutment 32 will pass over the first electromagnet ring 33 and contact the bottom of the second chamber. It should be noted that a second electromagnet ring used in conjunction with the first electromagnet ring 33 is installed at the bottom of the abutment 32. In the initial state, due to the existence of the installation step, the first chamber is connected to the second chamber. The position overlaps at the installation step. At this time, the first electromagnet ring 33 and the second electromagnet ring are in a non-powered state. At the beginning of the test, the first electromagnet ring 33 and the second electromagnet ring are powered on, and the first electromagnet ring 33 and the second electromagnet ring repel each other. At this time, the cylinder 22 is started. When the cylinder 22 drives the abutment 32 to move downward, due to the repulsion between the first electromagnet ring 33 and the second electromagnet ring, the abutment 32 will drive the sleeve 6 to move downward synchronously, and its bottom will not pass over the first electromagnet ring 33. However, when the first electromagnet ring 33 loses power, if the sleeve 6 is restricted and cannot move, when the abutment 32 moves downward again, its bottom will pass over the first electromagnet ring 33 and contact the bottom of the second chamber;

[0045] like Figure 4-Figure 5 , Figure 7 As shown, a limiting groove 8 for changing the movement trajectory of the sleeve 6 is provided on the inner surface of the frame 31, and a spring pin 9 used in conjunction with the limiting groove 8 is movably installed on the surface of the sleeve 6. In this embodiment, the spring pin 9 is suitable for swinging left and right, but cannot swing up and down. The limiting groove 8 includes a first slideway 81 provided on the inner surface of the frame 31. The first slideway 81 is a section of vertical downward slideway. In the initial state, one end of the spring pin 9 abuts against the first slideway 81 and forms an abutting end. For the convenience of description, the position of the abutting end at this time is defined as the initial position, and the spring pin 9 is always in a squeezed state, and the abutting end will continue to abut against the limiting groove 8.

[0046] It should be noted that a critical point 1 89 and a critical point 2 810 which are gradually away from the initial position are respectively provided in the first slide 81, and a first switch for controlling the electromagnet sheet to lose power is provided at the position of the critical point 2 810. When the abutting end contacts the first switch, the electromagnet sheet loses power, and the slider 42 is suitable for sliding downward. In this embodiment, a water immersion area is provided between the enclosures 4 near the bottom of the slide rail 41, mainly for the convenience of wetting the sample fabric. In the initial state, the slider 42 is located at the top of the slide rail 41, and the clamped sample fabric does not contact the water immersion area. However, in this application, water may exist in the water immersion area only at the beginning of the test. When the sample fabric is still being installed by the clamp 5, the water immersion area is still in a dry state.

[0047] A second slideway 82 is provided at the end of the first slideway 81. A first stop point 85 is provided at a position where the second slideway 82 communicates with the first slideway 81, and the bottom height of the second slideway 82 is lower than the bottom height of the first slideway 81 to form a blocking step. When the abutting end slides from the first slideway 81 into the second slideway 82, it cannot return from the second slideway 82 to the first slideway 81.

[0048] A third slide 83 is provided at the end of the second slide 82. The third slide 83 is also a vertical downward slide. A second stationary point 86 is provided at the position where the third slide 83 is connected to the second slide 82. At the same time, a second switch for controlling the electromagnet sheet to be energized is provided at the position of the second stationary point 86. When the abutting end contacts the second switch, the electromagnet sheet returns to the energized state. It should be noted that the horizontal height of the second stationary point 86 is lower than the horizontal height of the initial position, and the groove bottom height of the third slide 83 is lower than the groove bottom height of the second slide 82, and a blocking step is also formed. Therefore, after the abutting end second slide 82 enters and slides into the third slide 83, it is impossible to return from the third slide 83 to the second slide 82.

[0049] When conducting the sunshade fabric bursting performance test, the sample fabric is first in a dry state, and the staff starts the cylinder 22 to drive the abutment 32 to move downward. Since the first electromagnet ring 33 and the second electromagnet ring are energized, the abutment 32 directly drives the sleeve 6 to move downward, and the sleeve 6 moves downward and drives the detection hammer 61 to move downward synchronously. For details, please refer to Figure 8In state one, the sleeve 6 moves downward while driving the spring pin 9 movably connected thereto to move downward. The spring pin 9 moves downward and continues to slide in the first slideway 81. When the abutting end slides to the critical point one 89, it represents that the detection hammer 61 begins to contact the sample fabric. When the abutting end slides to the critical point two 810, the abutting end contacts the first switch, and the first switch controls the electromagnet sheet to lose power. At this time, the output end of the cylinder 22 continues to be ejected, and the detection hammer 61 abuts on the sample fabric. The sample fabric moves downward under the abutting effect of the detection hammer 61 and the action of gravity. The slider 42 slides downward until the sample fabric is completely immersed in the immersion area, and at the same time, the abutting end moves from the critical point two 810 position to the first stationary point 85 position. This process can be specifically referred to Figure 8 Changes in the motion trajectory;

[0050] For the convenience of understanding, the above-mentioned movement process is further analyzed here. When the abutting end slides in the first slideway 81, its movement process can be divided into three stages. The first stage is that the abutting end slides from the initial position to the critical point 89. This process is the process in which the output end of the cylinder 22 drives the detection hammer 61 to move downward. The detection hammer 61 has not yet contacted the sample cloth. The second stage is the process in which the abutting end slides from the critical point 89 to the critical point 2 810. This stage is the process of detecting the sample cloth in a dry state. The abutting end reaches the critical point 89. At 89, the detection hammer 61 starts to contact the sample fabric. During the continuous sliding of the abutting end, the sample fabric begins to deform until the abutting end slides to the critical point 810. During this process, the fabric changes from the initial horizontal straight state to the concave state after being compressed. If the sample fabric has been broken by the detection hammer 61 before the abutting end reaches the critical point 810, it means that the fabric has a large weaving density and a small elasticity. When the cylinder 22 is output to the limit position, the damaged fabric can be removed from the fixture 5 without further testing.

[0051] The third stage is the process of the abutting end moving from the critical point 2 810 to the first stationary point 85. This process is the process of changing the state of the sample cloth. When the abutting end reaches the critical point 2 810, it contacts the first switch, and the first switch controls the electromagnet sheet to lose power. At this time, the cylinder 22 continues to work, and the slider 42 moves downward. The movement of the slider 42 drives the clamp 5 to move, and the clamp 5 drives the sample cloth clamped by it to move synchronously. The sample cloth moves down into the water-immersed area, and the cloth changes from the dry state after the detection is completed to the wet state, so as to facilitate subsequent detection. However, it should be noted that when the abutting end reaches the critical point 2 810, the cloth is not immersed in water, but when the abutting end approaches the first stationary point 85, the cloth will contact the water-immersed area.

[0052] When the abutting end moves to the first stationary point 85, it indicates that the output end of the cylinder 22 has been extended to the limit position. Then the staff controls the output end of the cylinder 22 to retract, and the output end of the cylinder 22 moves up and the abutting member 32 moves up. The abutting member 32 moves up and drives the sleeve 6 to move up. The sleeve 6 moves up and drives the detection hammer 61 to move up. In this process, the abutting end enters the second slideway 82 from the first stationary point 85 and continues to slide to the second stationary point 86. Since the horizontal height of the second stationary point 86 is lower than the horizontal height of the initial position, after the abutting end reaches the second stationary point 86, the spring pin 9 cannot continue to move up, but the output end of the cylinder 22 has not yet reset and still needs to move up a certain distance. Therefore, at this time, the spring pin 9 will be stretched by the sleeve 6, and the abutting end is still abutted at the second stationary point 86.

[0053] When the abutting end reaches the second stationary point 86, it contacts the second switch, and the second switch controls the electromagnet sheet to be energized, and the electromagnet sheet returns to the energized state, and the two electromagnet sheets repel each other. Under the action of the repulsive force, the slider 42 slides from the bottom of the slide rail 41 to the top of the slide rail 41, and the soaked sample fabric escapes from the soaked area. In this way, this process completes the bursting performance test of the dry sample fabric, and at the same time, the dry sample fabric is converted into a wet state, so as to facilitate the next step of the test;

[0054] Continue to refer Figure 7 , a fourth slide 84 is provided at the end of the third slide 83, and a third stationary point 87 is provided at the connection between the third slide 83 and the fourth slide 84. It should be noted that the level of the third stationary point 87 is higher than the level of the first stationary point 85 but lower than the level of the critical point 2 810, and the groove bottom height of the fourth slide 84 is lower than the groove bottom height of the third slide 83, so that after the abutting end enters the fourth slide 84 from the third slide 83, it cannot return to the third slide 83 from the fourth slide 84, and a third switch for controlling the first electromagnet ring 33 and the second electromagnet ring to lose power is provided at the position of the third stationary point 87;

[0055] The end of the fourth slideway 84 is connected to the first slideway 81, and a transition slope 88 is provided at the connection point to facilitate the abutting end to return to the first slideway 81. The highest position of the transition slope 88 is higher than the bottom height of the groove of the first slideway 81 and forms a transition step. When the abutting end slides in the first slideway 81, it cannot cross the transition step and directly enter the fourth slideway 84.

[0056] After completing the test on the sample fabric in a dry state, the staff needs to test the wet sample fabric again, so the staff starts the cylinder 22 again, and the output end of the cylinder 22 extends to drive the detection hammer 61 to move down again, and the detection hammer 61 moves down again and contacts the sample fabric. The downward movement of the detection hammer 61 causes the soaked sample fabric to deform again. During this process, the abutting end slides from the second stationary point 86 to the third slideway 83, and continues to slide in the third slideway 83 until the abutting end slides to the third stationary point 87. Since the level of the third stationary point 87 is higher than the level of the first stationary point 85 and lower than the level of the critical point 2 810, and the electromagnet sheet is always in an energized state, during the bursting process at this time, compared with the first downward movement of the detection hammer 61, the downward movement of the detection hammer 61 will abut the sample fabric for a longer distance.

[0057] It can be understood that, during the downward movement of the detection hammer 61, since the abutting end is not restricted and a control switch is not provided, the detection hammer 61 will continue to abut the sample fabric under the continuous action of the cylinder 22. Since the level of the third stationary point 87 is higher than the level of the first stationary point 85, the abutting end will continue to slide until it reaches the third stationary point 87 under the action of the cylinder 22. However, when the detection hammer 61 moves downward for the first time, after it moves to the critical point 2 810, the electromagnet sheet loses power, and the cylinder 22 continues to act, but the effect of the detection hammer 61 on the sample fabric is small. However, when the detection hammer 61 moves downward this time, it will move a longer distance compared to the first time, until the concave part of the sample fabric is pushed to a position that is constantly close to the water surface of the immersion area. In this bursting process, the immersed sample fabric will be broken by the detection hammer 61, and the position where it is broken represents the magnitude of the ultimate force on the fabric after being immersed in water.

[0058] After the abutting end moves to the third stationary point 87, the abutting end contacts the third switch, and the third switch controls the first electromagnet ring 33 and the second electromagnet ring to lose power, so that the first electromagnet ring 33 and the second electromagnet ring no longer repel each other, and the cylinder 22 continues to act, and the abutting member 32 moves from the position of the first electromagnet ring 33 to the position at the bottom of the second chamber. The length of this space absorbs the remaining ejection distance of the output end of the cylinder 22, and the abutting end will continue to abut at the third stationary point 87.

[0059] After the detection hammer 61 is pressed down for the second time to break the soaked sample fabric, the staff controls the output end of the cylinder 22 to retract, and the retraction of the output end of the cylinder 22 drives the abutment 32 to move upward, and the bottom of the abutment 32 moves from the position at the bottom of the second chamber to the position of the first electromagnet ring 33, and at the same time, its upper end moves to the installation step. With the continuous action of the cylinder 22, the abutment 32 drives the sleeve 6 to move upward synchronously, and at the same time drives the detection hammer 61 to move upward;

[0060] During this process, the abutting end moves from the third stationary point 87 to the fourth slide 84, and continues to slide in the fourth slide 84, and finally returns to the initial position of the first slide 81 through the transition slope 88. However, the detection hammer 61 also returns to the initial position driven by the sleeve 6. At this time, the next batch of sample fabrics can be tested. At the same time, a fourth switch for controlling the first electromagnet ring 33 and the second electromagnet ring to be energized is provided at the initial position, so that after the abutting end is reset, the first electromagnet ring 33 and the second electromagnet ring are controlled to be energized again and repel each other, so as to facilitate the subsequent testing of sample fabrics.

[0061] In this embodiment, a PLC control system is provided in the base 1 to facilitate the alternating opening or closing of each electrical component;

[0062] In summary, through the cooperation of the limit groove 8 and the spring pin 9, the staff can test the sample fabrics in two different states respectively by starting the cylinder 22 twice, and its stroke is changed. When the detection hammer 61 is pressed down for the second time, the length of its downward movement will be greater than the length of the first downward movement until the soaked sample fabric is broken, thereby testing the ultimate top force of the soaked sample fabric.

[0063] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tool for testing the mechanical properties of sunshade fabrics, characterized by: include: A base (1), wherein a top plate (21) is disposed on the base (1), and a cylinder (22) is fixedly mounted on the top plate (21); A panel (4) is fixedly mounted on both sides of the base (1); at least two sets of vertical slide rails (41) are fixedly mounted on the corresponding side of the panel (4); a slider (42) is slidably mounted on the slide rail (41); and support steps (7) are provided at both upper and lower ends of the panel (4); A clamp (5), the clamp (5) being fixedly mounted on the slider (42), a connecting piece being fixedly mounted between the clamps (5), and an electromagnet sheet being mounted on one side of the connecting piece corresponding to the supporting step (7); Wherein: before the test is started, the electromagnet sheet is in an unpowered state, the slider (42) slides to the bottom of the slide rail (41) due to gravity, and the electromagnet sheets are close to each other; when the test starts, the electromagnet sheet is powered on, the electromagnet sheets at two locations repel each other, and the slider (42) slides to the highest position of the slide rail (41); A water-immersed area, the water-immersed area being arranged between the enclosure plates (4) and close to the bottom of the slide rail (41); A detection component (3), the detection component (3) being mounted on the bottom of the top plate (21), the detection component (3) comprising a frame (31) fixedly mounted on the bottom of the top plate (21); A supporting member (32), the supporting member (32) being fixedly mounted on the output end of the cylinder (22); A sleeve (6), the sleeve (6) being sleeved on the surface of the abutting member (32), the interior of the sleeve (6) being hollow, a first electromagnet ring (33) being fixedly mounted on the bottom of the sleeve (6) near the bottom of the abutting member (32), a second electromagnet ring being fixedly mounted on the bottom of the abutting member (32), and a detection hammer (61) being fixedly mounted on the bottom of the sleeve (6); A limiting groove (8), the limiting groove (8) being provided on the inner surface of the frame (31); a spring pin (9), the spring pin (9) being movably mounted on the sleeve (6); The limiting groove (8) comprises a first slideway (81) provided on the inner surface of the frame (31); one end of the spring pin (9) is abutted in the first slideway (81) to form an abutting end; a second slideway (82) is provided at the end of the first slideway (81); a first stationary point (85) is provided at a position where the first slideway (81) and the second slideway (82) are connected; The bottom height of the second slideway (82) is lower than the bottom height of the first slideway (81) and forms a blocking step; A PLC control system is provided in the base (1); a critical point 1 (89) and a critical point 2 (810) which are gradually away from the abutting end are provided in the first slideway (81); a first switch is provided at the position of the critical point 2 (810); and the first switch is electrically connected to the electromagnet sheet; A third slide (83) is provided at the end of the second slide (82), a second stationary point (86) is provided at the connection between the second slide (82) and the third slide (83), a fourth slide (84) is provided at the end of the third slide (83), a third stationary point (87) is provided at the position where the third slide (83) and the fourth slide (84) are connected, and the end of the fourth slide (84) is connected to the end of the first slide (81); The groove bottom height of the third slideway (83) is lower than the groove bottom height of the second slideway (82) and also forms the blocking step; A second switch is provided at the position of the second stationary point (86), and the second switch is electrically connected to the electromagnet sheet; the horizontal height position of the third stationary point (87) is higher than the horizontal height position of the first stationary point (85) and lower than the horizontal height position of the critical point 2 (810); a third switch is provided at the position of the third stationary point (87), and the third switch is electrically connected to the first electromagnet ring (33) and the second electromagnet ring; The end of the fourth slideway (84) is connected to the first slideway (81), and a transition slope (88) is provided at the position where the fourth slideway (84) is connected to the first slideway (81), and the highest position of the transition slope (88) is higher than the bottom height of the groove of the first slideway (81) and forms a transition step; A fourth switch is arranged in the first slideway (81), and the fourth switch is electrically connected to the first electromagnet ring (33) and the second electromagnet ring.

2. A sunshade fabric mechanical properties testing tool according to claim 1, characterized in that: Support columns (2) are fixedly mounted on both sides of the base (1), and the top plate (21) is fixedly mounted on the support columns (2); The sleeve (6) is divided into a first chamber and a second chamber. The first chamber is adapted to the output end of the cylinder (22), and the second chamber is adapted to the supporting member (32). A mounting step is provided at the position where the first chamber and the second chamber are connected.

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