Tear resistance detection device for tarpaulin and use method of tear resistance detection device

Abstract

The invention discloses a tarpaulin tear resistance detection device and a use method thereof, belongs to the technical field of tear resistance detection, and provides the following scheme that the tarpaulin tear resistance detection device comprises a detection control mechanism, a detection mechanism is arranged on the detection control mechanism, the detection control mechanism comprises a base, an adjusting rotary table is arranged on the base, and the adjusting rotary table is connected with the detection mechanism. The detection mechanism comprises a supporting roller, and the supporting roller is fixedly connected to the base; when the tarpaulin is clamped by the clamping assembly for detection, tear resistance data can be accurately detected through the pressure sensor, in the detection process, if the tarpaulin is displaced and the cam teeth are turned, the diameter of the cam teeth is increased upwards, so that the contact surface with the tarpaulin can be increased, the attaching tightness of the cam teeth and the tarpaulin is improved, and the detection accuracy is improved. And when large displacement is generated, the cam teeth drive the toothed plate to move, then an alarm signal of the alarm is triggered, a worker carries out adjustment in time, and the problem that one end of the tarpaulin pops up to hurt people is avoided.

Description

Technical Field

[0001] This invention relates to the field of tear resistance testing technology, and in particular to a tear resistance testing device for tarpaulins and its method of use. Background Technology

[0002] Tarpaulins are widely used in cargo transportation covering, outdoor storage, and temporary shelter. Their tear resistance directly determines their reliability and service life. Under wind loads, cargo friction, and external impacts, if the tarpaulin's tear resistance is insufficient, tears will easily appear and spread rapidly, leading to failure of the covering and protection, resulting in damage to goods and property loss. Therefore, tear resistance testing of tarpaulins is a crucial step in ensuring product quality and selecting qualified products. However, existing testing devices generally lack sampling capabilities, relying on manual random sampling, which is not only cumbersome but also makes it difficult to sample tarpaulins from different texture directions. This hinders the adaptation to tear performance testing requirements at different weaving angles and makes it difficult to comprehensively reflect the tear resistance of tarpaulins in actual use. Furthermore, common tear resistance testing devices typically use simple clamping mechanisms for holding and fixing, with pressure sensors detecting tensile force. During testing, tarpaulin samples are prone to displacement or even detachment due to stretching, affecting the accuracy of the test results. Detached samples may also pose safety hazards if ejected under high pressure. In addition, the lack of displacement monitoring and alarm mechanisms makes it impossible to detect abnormal sample displacement in a timely manner, failing to meet the quality control requirements of "comprehensive testing, accurate and reliable, safe and efficient" in tarpaulin production.

[0003] To address the above problems, this invention proposes a tear resistance testing device for tarpaulins and its usage method. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing testing devices, which generally lack sampling capabilities and rely on manual random sampling. This is not only cumbersome but also makes it difficult to sample the tarpaulin in different directions of texture, thus failing to comprehensively reflect the tear resistance of the tarpaulin in actual use. Furthermore, common tear resistance testing devices typically use simple clamping mechanisms for holding and fixing, which can easily cause displacement or even detachment of the tarpaulin sample during testing. The detached sample may also pose a safety hazard if ejected under high pressure. Additionally, it is not convenient to detect abnormal displacement of the sample in a timely manner. Therefore, this invention proposes a tear resistance testing device for tarpaulins and its usage method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A tear resistance testing device for tarpaulins includes a testing control mechanism, wherein a testing mechanism is provided on the testing control mechanism; The detection and control mechanism includes a base, on which an adjustment turntable is provided; The detection mechanism includes a support roller, which is fixedly connected to the base. The support roller has an annular groove and two straight grooves, which are connected to the annular groove. An adjustment drive assembly and a cutting assembly are respectively arranged above and below the support roller. The cutting assembly is equipped with an ejection assembly. Clamping assemblies are arranged below the cutting assembly and on the base. The rollers of the adjustment drive assembly can slide in the annular groove and the straight grooves.

[0006] Preferably, the base is provided with a control device, and the support roller is equipped with a detection probe.

[0007] Preferably, the adjustment drive assembly includes an adjustment plate, which is rotatably mounted on a support roller via a bearing. An electric push rod is mounted on the adjustment plate, a pressure sensor is mounted at one end of the electric push rod, a mounting base is mounted below the pressure sensor, and a roller is fixedly connected to one side of the mounting base.

[0008] Preferably, the adjusting turntable includes a turntable, with a rotating shaft and multiple guide wheels fixedly connected below the turntable. The rotating shaft is rotatably mounted on the base via bearings, and the multiple guide wheels are arranged in a track on the base.

[0009] Preferably, the cutting assembly includes a fixed plate, which is fixedly mounted on a support roller. A movable rod is passed through the fixed plate, and an upper plate and a blade holder are fixedly connected to both ends of the movable rod, respectively. A third spring is fixedly connected between the upper plate and the fixed plate.

[0010] Preferably, the ejection assembly includes two connecting strips, a fourth spring is fixedly connected to the lower part of the connecting strips, the fourth spring is fixedly connected to the tool holder, two sliding rods are fixedly connected to the lower part of the connecting strips, and the four sliding rods pass through the tool holder and are fixedly connected to the push plate, the push plate being disposed in the tool holder.

[0011] Preferably, the clamping assembly includes a clamping frame, two clamping frames are respectively fixedly connected to the base and the mounting base, an alarm is installed on the clamping frame, nuts are installed on both sides of the clamping frame, and operating screws are internally threaded to the nuts. The operating screws are rotatably mounted on the clamping component through bearings.

[0012] Preferably, two bearing seats are fixedly connected to the top of the clamping member, a guide plate is fixedly connected to one side of the bearing seats, the guide plate is slidably connected in the guide sleeve, and the guide sleeve is installed on the clamping frame.

[0013] Preferably, a support shaft is rotatably mounted in one of the two bearing seats, a cam tooth is mounted on the support shaft, an anti-slip layer is provided on the cam tooth, a tooth plate is engaged on one side of the cam tooth, the tooth plate is slidably connected to the bracket, a first spring is fixedly connected between the bracket and the tooth plate, and the bracket is fixedly connected to the clamping member; A contact block and a guide frame are fixedly connected above the toothed plate. A slide block is slidably connected to the guide frame. A switch is installed below the slide block. A second spring is fixedly connected between the slide block and the guide frame.

[0014] A method for using a tear resistance testing device for tarpaulins includes the following steps: S1. When conducting the tear resistance test of the tarpaulin, the mounting base is pushed down by the electric push rod in advance, so that the mounting base applies pressure to the cutting component and the push-out component downward through the clamping component. The tarpaulin is cut by the blade holder. After cutting, the electric push rod retracts, the third spring drives the upper plate to reset, and the blade holder is reset upward. At the same time, the fourth spring drives the push plate to apply downward force to the cut tarpaulin to prevent the tarpaulin from sticking. After the initial cutting, the adjustment turntable is rotated to perform cutting operations at different angles, so that the tarpaulin can be cut into multiple sections. S2. After the tarpaulin is cut, the electric push rod continues to retract, causing the roller to enter the annular groove from the straight groove. At this time, rotate the adjustment drive component to make the two clamping components stand side by side, and control the electric push rod to extend. The roller enters the straight groove to maintain directional stability. Then, by rotating the operating screw, the clamping components clamp the tarpaulin, while the two cam teeth are in close contact with the upper end of the tarpaulin. S3. After the tarpaulin is fixed, the electric push rod retracts, causing the clamping assembly to apply force to the tarpaulin for tear resistance testing. At the same time, the detection probe and pressure sensor monitor the tear resistance data. During the test, when the tarpaulin slips, the cam tooth rotates. Due to the larger diameter of the cam tooth, the contact surface of the tarpaulin is increased, further reinforcing one end of the tarpaulin and maintaining the testing operation. When the displacement continues, the cam tooth drives the tooth plate to move upward, causing the contact block to contact the switch upward. The alarm then sounds, prompting the staff to readjust before resuming the testing operation.

[0015] Compared with the prior art, the present invention provides a tear resistance testing device for tarpaulins and its usage method, which has the following beneficial effects: 1. The tear resistance testing device for the tarpaulin and its usage method: When the tarpaulin is clamped by the clamping assembly for testing, the tear resistance data can be accurately detected by the pressure sensor. During the testing process, if the tarpaulin is displaced, the cam teeth will turn. Since the diameter of the cam teeth increases upward, the contact area with the tarpaulin can be increased, thus improving the adhesion and tightness between the cam teeth and the tarpaulin and effectively preventing the sample from falling off. When a large displacement occurs, the cam teeth drive the tooth plate to move, thereby triggering the alarm signal of the alarm device. The staff can make timely adjustments and avoid the problem of one end of the tarpaulin popping out and injuring people.

[0016] 2. The tear resistance testing device for the tarpaulin and its usage method: By adjusting the drive component to press down the cutting component, the tarpaulin can be cut smoothly. After cutting, the push-out component can apply a pushing force to the tarpaulin to prevent it from sticking together, ensuring smooth subsequent cutting operations and avoiding accidental damage caused by manual removal. Furthermore, adjusting the turntable can adjust the direction of the tarpaulin, thereby enabling cutting operations at different angles. This allows for convenient and accurate sampling and testing of multiple weaving angles of the tarpaulin, improving the comprehensiveness of tear resistance testing.

[0017] 3. The tear resistance testing device for the tarpaulin and its usage method involve adjusting the drive component to raise the roller into the annular groove, thereby smoothly adjusting the position of the drive component. This allows the drive component to switch between the cutting and testing areas. Furthermore, once the roller enters the straight groove, it directly limits the movement of the drive component, ensuring stable operation and providing a solid guarantee for high-quality and stable testing. This design integrates cutting and testing functions, reducing the number of devices and floor space required, and lowering equipment purchase and maintenance costs. At the same time, automated operation reduces manual intervention, further saving labor costs. Attached Figure Description

[0018] Figure 1 This is a perspective view of a tear resistance testing device for tarpaulin proposed in this invention; Figure 2 This is a perspective view of the detection control mechanism of a tear resistance detection device for tarpaulin proposed in this invention; Figure 3 This is a perspective view of the adjusting turntable of a tear resistance testing device for tarpaulin proposed in this invention; Figure 4 This is a perspective view of the support roller of a tear resistance testing device for tarpaulin proposed in this invention; Figure 5 This is a cross-sectional perspective view of the cutting component of a tear resistance testing device for tarpaulin proposed in this invention; Figure 6 This is a perspective view of the clamping assembly of a tear resistance testing device for tarpaulin proposed in this invention; Figure 7This is a perspective view of the clamping component of a tear resistance testing device for tarpaulin proposed in this invention; Figure 8 This is a perspective view of the toothed plate of a tear resistance testing device for tarpaulin proposed in this invention.

[0019] In the diagram: 100, Detection and control mechanism; 101, Base; 102, Control equipment; 103, Adjustment turntable; 1031, Rotating shaft; 1032, Turntable; 1033, Guide wheel; 200, Detection mechanism; 201, Adjustment drive assembly; 2011, Electric push rod; 2012, Adjustment plate; 2013, Mounting base; 2014, Roller; 2015, Pressure sensor; 202, Support roller; 203, Clamping assembly; 2031, Clamping frame; 2032, Operating screw; 2033, Nut; 2034, Clamping component; 2035, Bearing seat; 2036, Guide plate; 2037, Cam tooth; 2038, Support shaft ; 2039, bracket; 20310, first spring; 20311, toothed plate; 20312, guide frame; 20313, second spring; 20314, slide; 20315, switch; 20316, contact block; 20317, guide sleeve; 20318, alarm; 204, linear groove; 205, detection probe; 206, cutting assembly; 2061, upper plate; 2062, movable rod; 2063, third spring; 2064, fixed plate; 2065, knife holder; 207, annular groove; 208, ejection assembly; 2081, connecting bar; 2082, fourth spring; 2083, slide rod; 2084, push plate. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Example 1: Refer to Figures 1-2 , Figure 4 and Figures 6-8A tear resistance testing device for tarpaulins includes a testing control mechanism 100, on which a testing mechanism 200 is mounted. The testing mechanism 200 includes a support roller 202, which is fixedly connected to a base 101. The support roller 202 has an annular groove 207 and two straight grooves 204, which communicate with the annular groove 207. This communication allows a roller 2014 to switch between the straight grooves 204 and the annular groove 207. When the roller 2014 is in the annular groove 207, the direction of the adjustment drive assembly 201 can be easily adjusted. When the roller 2014 is in the straight groove 204, the direction of the adjustment drive assembly 201 can be avoided, maintaining overall stability and ensuring stable cutting and testing operations. An adjustment drive assembly 201 and a cutting assembly 206 are respectively provided at the top and bottom. The adjustment drive assembly 201 includes an adjustment plate 2012, which is rotatably mounted on the support roller 202 via a bearing. The adjustment plate 2012 can smoothly adjust the position of the electric push rod 2011 by rotating the outer ring of the bearing, so as to facilitate the switching of the electric push rod 2011 between the cutting area and the detection area. The electric push rod 2011 is mounted on the adjustment plate 2012. A pressure sensor 2015 is mounted on one end of the electric push rod 2011. The pressure sensor 2015 can detect the tear resistance tensile data of the tarpaulin. A mounting base 2013 is mounted below the pressure sensor 2015. A roller 2014 is fixedly connected to one side of the mounting base 2013. An ejection assembly 208 is provided on the cutting assembly 206. Clamping components 203 are provided below the cutting component 206 and on the base 101. Each clamping component 203 includes a clamping frame 2031, with two clamping frames 2031 fixedly connected to the base 101 and the mounting base 2013 respectively. An alarm 20318 is installed on each clamping frame 2031. Nuts 2033 are installed on both sides of each clamping frame 2031, with an operating screw 2032 internally threaded onto each nut 2033. The operating screw 2032 drives the nut 2033, thereby pushing the clamping member 2034 to move, allowing it to smoothly clamp the end of the tarpaulin for easy fixation. The operating screw 2032 is rotatably mounted on the clamping member 2034 via bearings. Two shafts are fixedly connected to the top of the clamping member 2034. A guide plate 2036 is fixedly connected to one side of the bearing seat 2035. The guide plate 2036 is slidably connected in the guide sleeve 20317, which guides the guide plate 2036 to ensure the smooth movement of the clamping member 2034 and the bearing seat 2035. The guide sleeve 20317 is mounted on the clamping frame 2031. A support shaft 2038 is rotatably mounted in the two bearing seats 2035. The support shaft 2038 can rotate smoothly through the bearing seats 2035, thereby keeping the cam tooth 2037 in a stable direction. The cam tooth 2037 is mounted on the support shaft 2038 and is provided with an anti-slip layer. The diameter of the protruding part of the cam tooth 2037 is relatively large, so that when the tarpaulin slides, the cam tooth 2037 rotates. The cam tooth 2037 increases the contact area with the tarpaulin, ensuring stable fixation. An anti-slip layer on the cam tooth 2037 significantly enhances its anti-slip properties, further improving clamping firmness. A toothed plate 20311 engages with one side of the cam tooth 2037. The toothed plate 20311 is slidably connected to the bracket 2039. A first spring 20310 is fixedly connected between the bracket 2039 and the toothed plate 20311. The bracket 2039 guides the toothed plate 20311, ensuring its smooth sliding. Simultaneously, when the tarpaulin is removed and slips, the first spring 20310 can smoothly reset the toothed plate 20311, thus resetting the cam tooth 2037. The bracket 2039 is fixedly connected to the clamping member 2034. A contact block 20316 and a guide frame 20312 are fixedly connected above 11. A slide block 20314 is slidably connected to the guide frame 20312. After the toothed plate 20311 drives the contact block 20316 to contact the switch 20315 to trigger an alarm, the cam tooth 2037 continues to move. At this time, the slide block 20314 can move upward, effectively creating a buffer space. Secondly, the second spring 20313 can drive the slide block 20314 to smoothly complete the reset action. A switch 20315 is installed below the slide block 20314. The second spring 20313 is fixedly connected between the slide block 20314 and the guide frame 20312. The roller 2014 of the adjusting drive assembly 201 can slide in the annular groove 207 and the linear groove 204.

[0023] In this embodiment: when the tarpaulin is clamped by the clamping component 203 for testing, if the tarpaulin is displaced, the cam tooth 2037 will turn. Since the diameter of the cam tooth 2037 increases upward, the contact area with the tarpaulin can be increased, thus improving the adhesion and tightness between the cam tooth 2037 and the tarpaulin, effectively preventing the sample from falling off. When a large displacement occurs, the cam tooth 2037 drives the tooth plate 20311 to move, which in turn drives the contact block 20316 to move. The contact block 20316 contacts the switch 20315, thereby triggering the alarm signal of the alarm 20318. The staff can make timely adjustments and avoid the problem of one end of the tarpaulin popping out and injuring people.

[0024] Example 2: Refer to Figures 1-5 A tear resistance testing device for tarpaulins includes a testing control mechanism 100. The testing control mechanism 100 includes a base 101, a control device 102 is provided on the base 101, a testing probe 205 is installed on a support roller 202, and an adjustment turntable 103 is provided on the base 101. The adjustment turntable 103 includes a turntable 1032, and a handle is provided on the outside of the turntable 1032 to facilitate rotation of the turntable 1032. A rotating shaft 1031 and multiple guide wheels 1033 are fixedly connected to the bottom of the turntable 1032. The rotating shaft 1031 is rotatably mounted on the base 101 through bearings. The rotating shaft 1031 can rotate through the shaft, so that the turntable 1032 can rotate smoothly, thereby facilitating the adjustment of the cutting angle of the tarpaulin. The guide wheels 1033 can assist the turntable 1032 to rotate smoothly, while ensuring the stability of the turntable 1032 support. The multiple guide wheels 1033 are arranged in a track on the base 101. The cutting assembly 206 includes a fixed plate 2064, which is fixedly mounted on the support roller 202. A movable rod 2062 passes through the fixed plate 2064 and can move on the fixed plate 2064. This allows the upper plate 2061 to be subjected to force, which in turn drives the blade holder 2065 to move downwards via the movable rod 2062. This enables the blade holder 2065 to smoothly perform the tarpaulin cutting operation. The upper plate 2061 and the blade holder 2062 are fixedly connected to both ends of the movable rod 2062, respectively. 5. A third spring 2063 is fixedly connected between the upper plate 2061 and the fixed plate 2064. The upper plate 2061 can be reset by the third spring 2063, which in turn causes the knife holder 2065 to reset upward. At the same time, the elastic force of the third spring 2063 is greater than the elastic force of the fourth spring 2082, which causes the knife holder 2065 to reset. The fourth spring 2082 can be compressed by the connecting strip 2081, so that the fourth spring 2082 can store elastic potential energy and prepare for the next tarpaulin push-out operation. The ejector assembly 208 includes two connecting strips 2081. A fourth spring 2082 is fixedly connected to the lower part of the connecting strips 2081. The fourth spring 2082 is fixedly connected to the blade holder 2065. When the blade holder 2065 is reset upward, the fourth spring 2082 will perform a reset action. Then, the slide rod 2083 can apply a pushing force to the push plate 2084, which can effectively prevent the cut tarpaulin from sticking to the blade holder 2065. Two slide rods 2083 are fixedly connected to the lower part of the connecting strips 2081. The four slide rods 2083 pass through the blade holder 2065 and are fixedly connected to the push plate 2084. The push plate 2084 is located in the blade holder 2065.

[0025] In this embodiment: by adjusting the drive component 201 to press down the cutting component 206, the tarpaulin cutting operation can be carried out smoothly. After cutting, the push-out component 208 can apply a pushing force to the tarpaulin to prevent the cut tarpaulin from sticking together, ensuring smooth subsequent cutting operations and avoiding accidental damage caused by manual removal. Secondly, adjusting the turntable 103 can adjust the direction of the tarpaulin, thereby realizing cutting operations at different angles. It can realize convenient and accurate sampling and detection of multiple weaving angles of the tarpaulin, and improve the comprehensiveness of tear resistance detection.

[0026] Example 3: Reference Figures 1-2 and Figure 4 A tear resistance testing device for tarpaulin includes a testing mechanism 200. The testing mechanism 200 includes a support roller 202, which is fixedly connected to a base 101. The support roller 202 has an annular groove 207 and two straight grooves 204, which communicate with the annular groove 207. An adjustment drive assembly 201 and a cutting assembly 206 are respectively provided above and below the support roller 202, and the roller 2014 of the adjustment drive assembly 201 can slide in the annular groove 207 and the straight grooves 204.

[0027] In this embodiment: by adjusting the drive component 201 to rise, the roller 2014 enters the annular groove 207, thereby smoothly adjusting the position of the drive component 201. This allows the drive component 201 to switch between the cutting area and the inspection area. After the roller 2014 enters the linear groove 204, it can directly stabilize the drive component 201, ensuring stable operation and providing a solid guarantee for high-quality and stable inspection operations. This design integrates cutting and inspection functions, reduces the number of devices and floor space, and lowers equipment purchase and maintenance costs. At the same time, automated operation reduces manual intervention, further saving labor costs.

[0028] A method for using a tear resistance testing device for tarpaulins includes the following steps: S1. When conducting the tear resistance test of the tarpaulin, the mounting base 2013 is pushed down by the electric push rod 2011 in advance, so that the mounting base 2013 applies pressure downward to the cutting component 206 and the pushing component 208 through the clamping component 203. The tarpaulin is cut by the blade holder 2065. After cutting, the electric push rod 2011 retracts, the third spring 2063 drives the upper plate 2061 to reset, so that the blade holder 2065 resets upward. At the same time, the fourth spring 2082 drives the push plate 2084 to apply downward force to the cut tarpaulin to prevent the tarpaulin from sticking. After the initial cutting, the adjusting turntable 103 is rotated to perform cutting operations at different angles, so that the tarpaulin can be cut in multiple sections. S2. After the tarpaulin is cut, the electric push rod 2011 continues to retract, causing the roller 2014 to enter the annular groove 207 from the straight groove 204. At this time, the adjustment drive assembly 201 is rotated to make the two clamping assemblies 203 stand side by side, and the electric push rod 2011 is controlled to extend. The roller 2014 enters the straight groove 204 to maintain a stable direction. Then, by rotating the operating screw 2032, the clamping member 2034 clamps the tarpaulin, while the two cam teeth 2037 are in close contact with the upper end of the tarpaulin. S3. After the tarpaulin is fixed, the electric push rod 2011 retracts, causing the clamping assembly 203 to apply force to the tarpaulin for tear resistance testing. At the same time, the detection probe 205 and the pressure sensor 2015 monitor the tear resistance data. During the test, when the tarpaulin slips, the cam tooth 2037 turns. Due to the larger diameter of the cam tooth 2037, the contact surface of the tarpaulin is increased, further reinforcing one end of the tarpaulin and maintaining the testing operation. When the displacement continues, the cam tooth 2037 drives the tooth plate 20311 to move upward, causing the contact block 20316 to contact the switch 20315. Then, the alarm 20318 sounds an alarm, prompting the staff to readjust before continuing the testing operation.

[0029] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A tear resistance testing device for tarpaulins, comprising a testing control mechanism (100), characterized in that, The detection control mechanism (100) is equipped with a detection mechanism (200); The detection control mechanism (100) includes a base (101) on which an adjustment turntable (103) is provided. The detection mechanism (200) includes a support roller (202), which is fixedly connected to the base (101). The support roller (202) has an annular groove (207) and two straight grooves (204). The two straight grooves (204) are connected to the annular groove (207). An adjustment drive assembly (201) and a cutting assembly (206) are respectively provided above and below the support roller (202). An ejection assembly (208) is provided on the cutting assembly (206). A clamping assembly (203) is provided below the cutting assembly (206) and on the base (101). The roller (2014) of the adjustment drive assembly (201) can slide in the annular groove (207) and the straight groove (204).

2. The tear resistance testing device for tarpaulin according to claim 1, characterized in that, A control device (102) is provided on the base (101), and a detection probe (205) is installed on the support roller (202).

3. The tear resistance testing device for tarpaulin according to claim 2, characterized in that, The adjustment drive assembly (201) includes an adjustment plate (2012), which is rotatably mounted on a support roller (202) via a bearing. An electric push rod (2011) is mounted on the adjustment plate (2012), and a pressure sensor (2015) is mounted on one end of the electric push rod (2011). A mounting base (2013) is mounted below the pressure sensor (2015), and a roller (2014) is fixedly connected to one side of the mounting base (2013).

4. The tear resistance testing device for tarpaulin according to claim 3, characterized in that, The adjustment turntable (103) includes a turntable (1032), and a rotating shaft (1031) and a plurality of guide wheels (1033) are fixedly connected below the turntable (1032). The rotating shaft (1031) is rotatably mounted on the base (101) through bearings, and the plurality of guide wheels (1033) are arranged in the track on the base (101).

5. The tear resistance testing device for tarpaulin according to claim 4, characterized in that, The cutting assembly (206) includes a fixed plate (2064), which is fixedly mounted on the support roller (202). A movable rod (2062) is passed through the fixed plate (2064). An upper plate (2061) and a blade holder (2065) are fixedly connected to both ends of the movable rod (2062). A third spring (2063) is fixedly connected between the upper plate (2061) and the fixed plate (2064).

6. The tear resistance testing device for tarpaulin according to claim 5, characterized in that, The ejection assembly (208) includes two connecting strips (2081), a fourth spring (2082) is fixedly connected to the lower part of the connecting strips (2081), the fourth spring (2082) is fixedly connected to the tool holder (2065), two sliding rods (2083) are fixedly connected to the lower part of the connecting strips (2081), and the four sliding rods (2083) pass through the tool holder (2065) and are fixedly connected to the push plate (2084), the push plate (2084) is located in the tool holder (2065).

7. The tear resistance testing device for tarpaulin according to claim 6, characterized in that, The clamping assembly (203) includes a clamping frame (2031), two clamping frames (2031) are fixedly connected to the base (101) and the mounting base (2013) respectively, an alarm (20318) is installed on the clamping frame (2031), and nuts (2033) are installed on both sides of the clamping frame (2031). The nuts (2033) are internally threaded with an operating screw (2032), and the operating screw (2032) is rotatably mounted on the clamping member (2034) through a bearing.

8. The tear resistance testing device for tarpaulin according to claim 7, characterized in that, Two bearing seats (2035) are fixedly connected to the top of the clamping member (2034). A guide plate (2036) is fixedly connected to one side of the bearing seat (2035). The guide plate (2036) is slidably connected in the guide sleeve (20317). The guide sleeve (20317) is installed on the clamping frame (2031).

9. The tear resistance testing device for tarpaulin according to claim 8, characterized in that, A support shaft (2038) is rotatably mounted in one of the two bearing seats (2035). A cam tooth (2037) is mounted on the support shaft (2038). An anti-slip layer is provided on the cam tooth (2037). A toothed plate (20311) meshes with one side of the cam tooth (2037). The toothed plate (20311) is slidably connected to the bracket (2039). A first spring (20310) is fixedly connected between the bracket (2039) and the toothed plate (20311). The bracket (2039) is fixedly connected to the clamping member (2034). A contact block (20316) and a guide frame (20312) are fixedly connected above the toothed plate (20311). A slide block (20314) is slidably connected on the guide frame (20312). A switch (20315) is installed below the slide block (20314). A second spring (20313) is fixedly connected between the slide block (20314) and the guide frame (20312).

10. The method of using the tear resistance testing device for tarpaulin according to claim 9, characterized in that, Includes the following steps: S1. When conducting the tear resistance test of the tarpaulin, the mounting base (2013) is pushed down by the electric push rod (2011) in advance, so that the mounting base (2013) applies pressure to the cutting component (206) and the pushing component (208) downward through the clamping component (203). The tarpaulin is cut by the knife holder (2065). After cutting, the electric push rod (2011) retracts, the third spring (2063) drives the upper plate (2061) to reset, so that the knife holder (2065) resets upward. At the same time, the fourth spring (2082) drives the push plate (2084) to apply downward force to the cut tarpaulin to prevent the tarpaulin from sticking. After the initial cutting, the adjusting turntable (103) is rotated to carry out cutting operations at different angles, so that the tarpaulin can be cut in multiple sections. S2. After the tarpaulin is cut, the electric push rod (2011) continues to retract, causing the roller (2014) to enter the annular groove (207) from the straight groove (204). At this time, rotate the adjustment drive assembly (201) to make the two clamping assemblies (203) stand side by side, and control the electric push rod (2011) to extend. The roller (2014) enters the straight groove (204) to maintain a stable direction. Then, by rotating the operating screw (2032), the clamping piece (2034) clamps the tarpaulin, while the two cam teeth (2037) are in close contact with the upper end of the tarpaulin. S3. After the tarpaulin is fixed, the electric push rod (2011) retracts, causing the clamping assembly (203) to apply force to the tarpaulin for tear resistance testing. At the same time, the detection probe (205) and pressure sensor (2015) monitor the tear resistance data. During the test, when the tarpaulin slips, the cam tooth (2037) turns. Due to the larger diameter of the cam tooth (2037), the contact surface of the tarpaulin is increased, which further reinforces one end of the tarpaulin and keeps the test operation going. When the displacement continues, the cam tooth (2037) drives the tooth plate (20311) to move upward, so that the contact block (20316) contacts the switch (20315) upward. Then the alarm (20318) will sound an alarm to remind the staff to readjust before the test operation is carried out.

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