Device for detecting tensile capacity of rubber plastic strip

Abstract

The invention relates to the technical field of rubber plastic strip detection, and discloses a rubber plastic strip tensile capacity detection device, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a base frame, the base frame is provided with a detection mechanism, the detection mechanism comprises two moving blocks, and the two moving blocks are slidably connected in the base frame. Through the design of the detection mechanism, when a rubber plastic strip is detected, the two ends of the rubber strip are clamped in two positioning frames, then a first motor works and controls two moving blocks to move away from each other, after the plastic strip is pulled, a connecting plate synchronously applies pressure to a pressure sensor, and when the pressure sensor is subjected to pressure for the first time, the rubber strip is detected. The marking pen is controlled to mark in the groove in the graduated scale, and the marking pen is controlled again to mark when the tension detection is completed, so that the stretching distance can be judged through the distance between the two marks, and compared with manual recording, the device is more accurate and reliable.

Description

Technical Field

[0001] The invention relates to the technical field of rubber plastic strip detection, in particular to a rubber plastic strip tensile capacity detection device. Background Art

[0002] Rubber is a highly elastic polymer material with reversible deformation. It can be mainly divided into natural rubber and synthetic rubber. Natural rubber mainly comes from the Hevea brasiliensis tree. When the bark of the rubber tree is cut, a milky white juice called latex will flow out. Synthetic rubber is made by artificial synthesis methods. Different types of rubber can be synthesized using different raw materials.

[0003] The Chinese patent application with publication number CN112345350B proposes a rubber plastic strip tensile strength detection device, which includes a first workbench and a second workbench, the second workbench is arranged on the top of the first workbench; a motor, the motor is installed on the second workbench; a stretching mechanism, the first workbench and the motor output shaft are provided with a stretching mechanism. The clamping force of the rubber plastic strip can be controlled by means of the clamping mechanism, and the stretching mechanism is driven by the rotation of the motor output shaft to stretch the rubber plastic strip, thereby achieving the purpose of automatic stretching; the automatic detection of the tensile strength of the rubber plastic strip is realized through the cooperation of the stretching mechanism and the notch mechanism.

[0004] In the production process of rubber and plastic strips, it is necessary to test the tensile performance of the rubber and plastic strips. During the testing process, the above device achieves the purpose of automatic testing by clamping and stretching the rubber and plastic strips. However, during the above testing process, it is necessary to manually record the stretched length of the rubber strip. In addition to being labor-intensive, this type of recording method requires manual observation of the stretching of the rubber and plastic strips while also taking into account the size scale of the stretching distance during the testing process. Under the premise of taking both into account, it is very likely that the rubber and plastic strips will be stretched to the maximum length or broken at the moment, and the staff will not be able to synchronously observe the distance scale, resulting in the rubber and plastic strips being broken. The test result is not accurate enough due to the delay in reading the degree. Therefore, a rubber and plastic strip stretching capacity detection device is proposed to solve the above problem. Summary of the invention

[0005] In order to solve the above-mentioned problems, the present invention provides a rubber plastic strip tensile capacity detection device.

[0006] The present invention provides a rubber plastic strip tensile capacity detection device that adopts the following technical solution:

[0007] A rubber plastic strip tensile capacity detection device comprises a bottom plate, a base frame is fixedly connected to the top of the bottom plate, and a detection mechanism is arranged on the base frame;

[0008] The detection mechanism includes two moving blocks, both of which are slidably connected to the inside of the base frame, and the moving blocks extend out of the base frame, the base frame is rotatably connected to a first bidirectional threaded rod, the first bidirectional threaded rod sequentially penetrates the two moving blocks, and the first bidirectional threaded rod is respectively connected to the two moving blocks by threads, a first motor is fixedly connected to a side wall of the base frame, the first motor is fixedly connected to the first bidirectional threaded rod through an output shaft, a vertical plate is fixedly connected to the top of the moving block, a positioning frame is provided on one side of the vertical plate, a connecting plate is fixedly connected to one side of the positioning frame, the connecting plate penetrates the vertical plate, a pressure sensor is fixedly connected to the vertical plate, the pressure sensor is fitted to the inner side of the connecting plate, and the pressure sensor is electrically connected to the first motor;

[0009] The top of the base frame is fixedly connected to a scale, a groove is provided on the scale, a U-shaped plate is fixedly connected to one side of the vertical plate, a rectangular block is provided on the inner side of the U-shaped plate, a trapezoidal block is provided on the top of the rectangular block, a touch plate is fixedly connected to the inner side of the U-shaped plate, the touch plate is arranged on the top of the trapezoidal block and contacts the trapezoidal block, a first spring is fixedly connected to the bottom of the trapezoidal block, the bottom of the first spring is fixedly connected to the top of the rectangular block, a control plate is fixedly connected to one side of the rectangular block, the touch plate extends into the interior of the vertical plate, a sleeve is rotatably connected to the vertical plate, the sleeve passes through the vertical plate, and a knock plate is fixedly connected to the outside of the sleeve A knock wheel, wherein the knock wheel is arranged on one side of the control panel, two support plates are fixedly connected to the top of the base frame, a square rod is rotatably connected between the two support plates, a second motor is fixedly connected to one side of one of the support plates, the second motor is fixedly connected to the square rod through an output shaft, the second motor is electrically connected to a pressure sensor, the square rod passes through a sleeve and matches with the sleeve, a mounting ring is arranged at the bottom of the rectangular block, a marker pen is placed inside the mounting ring, the marker pen is arranged at the top of the groove, a connecting plate is fixedly connected to the top of the mounting ring, the connecting plate passes through the rectangular block, and the top of the connecting plate is fixedly connected to the bottom of the trapezoidal block.

[0010] By adopting the above technical solution, when testing the rubber plastic strip, the two ends of the rubber strip are clamped in two positioning frames, and then the first motor works and controls the two moving blocks to move away from each other. After the plastic strip is pulled, the connecting plate simultaneously applies pressure to the pressure sensor. When the pressure sensor is subjected to pressure for the first time, the marker pen is controlled to mark in the groove on the scale. When the tension test is completed, the marker pen is controlled to mark again, so that the stretching distance can be determined by the distance between the two marks, which is more accurate than manual recording.

[0011] Preferably, a lower clamping plate is fixedly connected to the bottom inner side of the positioning frame, an upper clamping plate is arranged on the top of the lower clamping plate, and anti-slip stripes are integrally formed on the upper and lower clamping plates. A first threaded rod is rotatably connected to the top of the upper clamping plate, and a first limiting rod is also fixedly connected to the top of the upper clamping plate. The first threaded rod and the first limiting rod both extend out of the positioning frame, and the first threaded rod is connected to the top wall of the positioning frame by threads.

[0012] By adopting the above technical solution, the anti-skid stripes on the upper clamping plate and the lower clamping plate improve the stability of the rubber plastic strip after being clamped.

[0013] Preferably, a pointer plate is fixedly connected inside the U-shaped plate, the pointer plate is arranged at the bottom of the control plate, and the pointer plate extends out of the U-shaped plate.

[0014] By adopting the above technical solution, the pointer plate indicates the scale, allowing the user to read the value more intuitively.

[0015] Preferably, a clamping plate is provided inside the mounting ring, and the clamping plate fits against the outer surface of the marker pen. A second threaded rod is rotatably connected to the clamping plate, and the second threaded rod extends out of the mounting ring and is threadedly connected to the mounting ring. A second limiting rod is fixedly connected to the clamping plate, and the second limiting rod extends out of the mounting ring.

[0016] By adopting the above technical solution, the second threaded rod rotates to drive the clamping plate to move inside the mounting ring.

[0017] Preferably, a second spring is fixedly connected to one side wall of the inner cavity of the vertical plate, and one end of the second spring is fixedly connected to the inner side of the control panel.

[0018] By adopting the above technical solution, the second spring provides an elastic force to the control plate.

[0019] Preferably, a guide rod is fixedly connected to the inner side of the U-shaped plate, one end of the guide rod is fixedly connected to one side of the vertical plate, and the guide rod passes through the rectangular block.

[0020] By adopting the above technical solution, the guide rod limits the rectangular block.

[0021] Preferably, the detection mechanism includes a wiping assembly, the wiping assembly includes a bracket plate, the bracket plate is fixedly connected to the top of the U-shaped plate, a lifting plate is provided on the outside of the U-shaped plate, the lifting plate passes through the top wall of the bracket plate, a wiping plate is provided at the bottom of the lifting plate, two sockets are fixedly connected to the top of the wiping plate, and both ends of the bottom of the lifting plate extend into the interior of the two sockets and match the sockets.

[0022] By adopting the above technical solution, the lifting plate is inserted into the socket for fixation.

[0023] Preferably, an electric push rod is fixedly connected to the top of the bracket plate, and the top of the electric push rod is fixedly connected to the inner side of the lifting plate. Blocks are slidably connected to the inside of both side walls of the lifting plate, and the block extends out of the lifting plate. A spring is fixedly connected to one side of the block, and the spring is fixedly connected to the inside of the lifting plate. A through slot is opened on one side wall of the socket, and the block passes through the through slot and matches with the through slot.

[0024] By adopting the above technical solution, the electric push rod pushes and pulls the lifting plate up and down after working.

[0025] Preferably, a main body plate is fixedly connected to the top of the bottom plate, and the main body plate is arranged on the outside of the base frame. A protective mechanism is arranged on the main body plate, and the protective mechanism includes a grid protection frame, and the grid protection frame is arranged on the top of the base frame. Sliding blocks are fixedly connected on both sides of the grid protection frame, and the sliding blocks pass through a side wall of the main body plate and are slidably connected to the main body plate.

[0026] By adopting the above technical solution, the sliding block can slide in a vertical direction on the main plate and limit the grid protection frame.

[0027] Preferably, a second bidirectional threaded rod is rotatably connected to the inner side of the main body plate, a third motor is fixedly connected to one side wall of the main body plate, the third motor is fixedly connected to one end of the second bidirectional threaded rod through an output shaft, two movable blocks are slidably connected to the top wall of the main body plate, the second bidirectional threaded rod passes through the two movable blocks in sequence, and the second bidirectional threaded rod is respectively connected to the two movable blocks by threads, the bottom of the movable block is movably connected to a push-pull rod by a movable hinge seat, and one end of the push-pull rod is movably connected to the top wall of the grid protection frame by a movable hinge seat.

[0028] By adopting the above technical solution, the threads at both ends of the second bidirectional threaded rod are in opposite directions, which can drive the two movable blocks to move towards or away from each other.

[0029] In summary, the present invention includes the following beneficial technical effects:

[0030] 1. A rubber plastic strip stretching capacity detection device. Through the design of the detection mechanism, when the rubber plastic strip is tested, the two ends of the rubber strip are clamped in two positioning frames, and then the first motor works and controls the two moving blocks to move in opposite directions. After the plastic strip is pulled, the connecting plate synchronously applies pressure to the pressure sensor. When the pressure sensor is subjected to pressure for the first time, the marker pen is controlled to mark in the groove on the scale. When the tension test is completed, the marker pen is controlled to mark again, so that the stretching distance can be judged by the distance between the two marks. Compared with manual recording, it is more accurate and reliable.

[0031] 2. A rubber plastic strip tensile capacity detection device. Through the design of a protective mechanism, at the beginning of the detection work, the third motor works to control the movement of the movable block to drive the push-pull rod to flip. After the push-pull rod flips, the grid protection frame can be pulled up and down. When the grid protection frame moves downward to cover the top of the base frame, the protection function can be realized to prevent the rubber strip from breaking during the pulling process and causing harm to surrounding personnel due to the swinging of its elasticity. On this basis, it can also allow staff to observe its internal detection conditions, which has strong practicality and safety.

[0032] 3. A rubber plastic strip tensile capacity detection device. After a single detection is completed, the electric push rod works and pulls the lifting plate downward until the wiping plate moves downward to contact the inside of the groove, and then controls the moving block to move, so that the wiping plate can move in the groove and wipe off the mark of the last mark, so as to facilitate the rapid implementation of the next detection work, and the marking pen and the wiping plate can be easily disassembled and replaced, which is conducive to ensuring the stable and normal implementation of the marking and mark cleaning work. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the structure of the present invention;

[0034] Figure 2 is a cross-sectional view of the structure of the present invention;

[0035] Figure 3 It is a structural schematic diagram of the grid protection frame in the present invention;

[0036] Figure 4 It is a cross-sectional structural diagram of the main body plate in the present invention;

[0037] Figure 5 for Figure 4 A in the enlarged view;

[0038] Figure 6 It is a structural schematic diagram of the vertical plate in the present invention;

[0039] Figure 7 It is a structural schematic diagram of the positioning frame in the present invention;

[0040] Figure 8 It is a cross-sectional structural diagram of the vertical plate in the present invention;

[0041] Fig. 9 This is a disassembled diagram of the lifting plate and the wiping plate in the present invention;

[0042] Fig.10 for Fig. 9 The enlarged view of point B in the figure;

[0043] Fig.11 It is a cross-sectional structural diagram of the mounting ring in the present invention.

[0044] Explanation of the reference numerals: 1. bottom plate; 2. base frame; 3. detection mechanism; 31. moving block; 32. first bidirectional threaded rod; 33. first motor; 34. vertical plate; 35. positioning frame; 36. connecting plate; 37. pressure sensor; 38. scale; 39. groove; 391. U-shaped plate; 392. rectangular block; 393. trapezoidal block; 394. touch plate; 395. first spring; 396. control plate; 397. sleeve; 398. knock wheel; 399. support plate; 381. square rod; 382. second motor; 383. mounting ring; 384. mark Pen; 385, connecting plate; 386, lower clamping plate; 387, upper clamping plate; 388, first threaded rod; 389, pointer plate; 371, clamping plate; 372, second threaded rod; 373, second spring; 374, guide rod; 375, bracket plate; 376, lifting plate; 377, wiping plate; 378, socket; 379, electric push rod; 361, block; 362, spring leaf; 4, main plate; 5, protection mechanism; 51, grid protection frame; 52, sliding block; 53, second bidirectional threaded rod; 54, third motor; 55, movable block; 56, push-pull rod. DETAILED DESCRIPTION

[0045] The following is combined with Figure 1 -Attached Fig.11 The present invention is described in further detail.

[0046] The present invention discloses a device for detecting the tensile strength of a rubber plastic strip. Figure 1-Figure 11 , comprising a bottom plate 1, a base frame 2 is fixedly connected to the top of the bottom plate 1, and a detection mechanism 3 is arranged on the base frame 2;

[0047] The detection mechanism 3 includes two moving blocks 31, both of which are slidably connected to the inside of the base frame 2, and the moving blocks 31 extend out of the base frame 2, and a first bidirectional threaded rod 32 is rotatably connected to the inside of the base frame 2, and the first bidirectional threaded rod 32 sequentially penetrates the two moving blocks 31, and the first bidirectional threaded rod 32 is respectively connected to the two moving blocks 31 by threads, a first motor 33 is fixedly connected to a side wall of the base frame 2, and the first motor 33 is fixedly connected to the first bidirectional threaded rod 32 through an output shaft, a vertical plate 34 is fixedly connected to the top of the moving block 31, a positioning frame 35 is provided on one side of the vertical plate 34, and a connecting plate 36 is fixedly connected to one side of the positioning frame 35, and the connecting plate 36 penetrates the vertical plate 34, and a pressure sensor 37 is fixedly connected to the vertical plate 34, and the pressure sensor 37 is fitted with the inner side of the connecting plate 36, and the pressure sensor 37 is electrically connected to the first motor 33;

[0048] A scale 38 is fixedly connected to the top of the base frame 2, and a groove 39 is opened on the scale 38. A U-shaped plate 391 is fixedly connected to one side of the vertical plate 34. A rectangular block 392 is arranged on the inner side of the U-shaped plate 391, and a trapezoidal block 393 is arranged on the top of the rectangular block 392. A touch plate 394 is fixedly connected to the inner side of the U-shaped plate 391, and the touch plate 394 is arranged on the top of the trapezoidal block 393 and contacts the trapezoidal block 393. A first spring 395 is fixedly connected to the bottom of the trapezoidal block 393, and the bottom of the first spring 395 is fixedly connected to the top of the rectangular block 392. A control plate 396 is fixedly connected to one side of the rectangular block 392, and the touch plate 394 extends into Inside the vertical plate 34, a sleeve 397 is rotatably connected to the vertical plate 34, and the sleeve 397 passes through the vertical plate 34. A knock wheel 398 is fixedly connected to the outside of the sleeve 397, and the knock wheel 398 is arranged on one side of the control board 396. Two support plates 399 are fixedly connected to the top of the base frame 2, and a square rod 381 is rotatably connected between the two support plates 399. A second motor 382 is fixedly connected to one side of one of the support plates 399, and the second motor 382 is fixedly connected to the square rod 381 through an output shaft. The second motor 382 is electrically connected to the pressure sensor 37, and the square rod 381 passes through the sleeve 397 and matches the sleeve 397.

[0049] A mounting ring 383 is provided at the bottom of the rectangular block 392, and a marking pen 384 is placed inside the mounting ring 383. The marking pen 384 is set at the top of the groove 39. A connecting plate 385 is fixedly connected to the top of the mounting ring 383. The connecting plate 385 passes through the rectangular block 392, and the top of the connecting plate 385 is fixedly connected to the bottom of the trapezoidal block 393. When the rubber plastic strip is tested, the two ends of the rubber strip are clamped in the two positioning frames 35, and then the first motor 33 works and controls the two moving blocks 31 to move away from each other. After the plastic strip is pulled, the connecting plate 36 synchronously applies pressure to the pressure sensor 37. When the pressure sensor 37 is subjected to pressure for the first time, the marking pen 384 is controlled to mark in the groove 39 on the scale 38. When the tension test is completed, the marking pen 384 is controlled to mark again, so that the stretching distance can be judged by the distance between the two marks, which is more accurate than manual recording.

[0050] A lower clamping plate 386 is fixedly connected to the bottom of the inner side of the positioning frame 35, and an upper clamping plate 387 is arranged on the top of the lower clamping plate 386. Anti-skid stripes are formed integrally on the upper clamping plate 387 and the lower clamping plate 386. A first threaded rod 388 is rotatably connected to the top of the upper clamping plate 387, and a first limiting rod is also fixedly connected to the top of the upper clamping plate 387. The first threaded rod 388 and the first limiting rod are both extended out of the positioning frame 35. The first threaded rod 388 is connected to the top wall of the positioning frame 35 by threads. The anti-skid stripes on the upper clamping plate 387 and the lower clamping plate 386 improve the stability of the rubber plastic strip after being clamped. A pointer plate 389 is fixedly connected to the inside of the U-shaped plate 391. The pointer plate 389 is arranged at the bottom of the control plate 396 and extends out of the U-shaped plate 391. The pointer plate 389 indicates the scale, so that the user can read the value more intuitively.

[0051] A clamping plate 371 is provided inside the mounting ring 383, and the clamping plate 371 is fitted with the outer surface of the marking pen 384. A second threaded rod 372 is rotatably connected to the clamping plate 371, and the second threaded rod 372 extends out of the mounting ring 383 and is threadedly connected to the mounting ring 383. A second limiting rod is fixedly connected to the clamping plate 371, and the second limiting rod extends out of the mounting ring 383. After the second threaded rod 372 rotates, it drives the clamping plate 371 to move inside the mounting ring 383. A second spring 373 is fixedly connected to a side wall of the inner cavity of the vertical plate 34, and one end of the second spring 373 is fixedly connected to the inner side of the control plate 396. The second spring 373 provides an elastic force to the control plate 396. A guide rod 374 is fixedly connected to the inner side of the U-shaped plate 391, and one end of the guide rod 374 is fixedly connected to one side of the vertical plate 34. The guide rod 374 passes through the rectangular block 392, and the guide rod 374 limits the rectangular block 392.

[0052] The detection mechanism 3 includes a wiping assembly, which includes a bracket plate 375, the bracket plate 375 is fixedly connected to the top of the U-shaped plate 391, a lifting plate 376 is arranged on the outside of the U-shaped plate 391, the lifting plate 376 passes through the top wall of the bracket plate 375, a wiping plate 377 is arranged at the bottom of the lifting plate 376, the top of the wiping plate 377 is fixedly connected to two sockets 378, the two ends of the bottom of the lifting plate 376 extend into the two sockets 378 respectively and match the sockets 378, the lifting plate 376 is inserted into the sockets 378 for fixing, An electric push rod 379 is fixedly connected to the top of the bracket plate 375, and the top of the electric push rod 379 is fixedly connected to the inner side of the lifting plate 376. Blocks 361 are slidably connected to the inside of the two side walls of the lifting plate 376. The block 361 extends out of the outside of the lifting plate 376, and a spring leaf 362 is fixedly connected to one side of the block 361. The spring leaf 362 is fixedly connected to the inside of the lifting plate 376. A through groove is opened on one side wall of the socket 378, and the block 361 passes through the through groove and matches with the through groove. After the electric push rod 379 is working, it pushes and pulls the lifting plate 376 up and down.

[0053] The top of the bottom plate 1 is fixedly connected with a main plate 4, which is arranged on the outside of the base frame 2. A protective mechanism 5 is arranged on the main plate 4, and the protective mechanism 5 includes a grid protective frame 51, which is arranged on the top of the base frame 2. Both sides of the grid protective frame 51 are fixedly connected with sliding blocks 52, which penetrate through a side wall of the main plate 4 and are slidably connected to the main plate 4. The sliding block 52 can slide in a vertical direction on the main plate 4 and limit the grid protective frame 51.

[0054] A second bidirectional threaded rod 53 is rotatably connected to the inner side of the main body plate 4, and a third motor 54 is fixedly connected to one side wall of the main body plate 4. The third motor 54 is fixedly connected to one end of the second bidirectional threaded rod 53 through an output shaft, and two movable blocks 55 are slidably connected to the top wall of the main body plate 4. The second bidirectional threaded rod 53 passes through the two movable blocks 55 in sequence, and the second bidirectional threaded rod 53 is respectively connected to the two movable blocks 55 by threads, and a push-pull rod 56 is movably connected to the bottom of the movable block 55 through a movable hinge seat, and one end of the push-pull rod 56 is movably connected to the top wall of the grid protection frame 51 through a movable hinge seat. The threads at both ends of the second bidirectional threaded rod 53 are in opposite directions, which can drive the two movable blocks 55 to move toward or away from each other.

[0055] In the actual operation process, firstly, the device is powered on, and the two ends of the rubber plastic strip to be tested are respectively inserted into the two positioning frames 35, and then the first threaded rod 388 is rotated, and the first threaded rod 388 drives the upper clamping plate 387 to move downward, until the upper clamping plate 387 and the lower clamping plate 386 clamp the ends of the rubber strip, and the rubber strip is fixed, and then the first motor 33 works and drives the first bidirectional threaded rod 32 to rotate, and the first bidirectional threaded rod 32 drives the two moving blocks 31 to move away from each other, and the moving block 31 drives the vertical plate 34 to move, and the vertical plate 34 drives the positioning frame 35 to move. It can be seen from the above steps that at this time, the rubber strip can be pulled to both sides for detection;

[0056] At the moment when the rubber strip is pulled and stretched, the pulling force is transmitted to the connecting plate 36 on one side of the positioning frame 35. At this time, the connecting plate 36 applies pressure to the pressure sensor 37. When the pressure sensor 37 detects the pressure, the first motor 33 stops working, and the second motor 382 works and drives the square rod 381 to rotate, and the square rod 381 drives the sleeve 397 to rotate. After the sleeve 397 rotates, it knocks on the control plate 396. After the control plate 396 is subjected to force, it drives the rectangular block 392 to move, and the rectangular block 392 drives the connecting plate 385 to move, and the connecting plate 385 drives the trapezoidal block 393 to move. When the trapezoidal block 393 moves, it touches the inclined surface on the touch plate 394. The rectangular block 392 is pressed by the contact, so it moves downward while moving, and the trapezoidal block 393 drives the connecting plate 385 to move downward, and the connecting plate 385 drives the mounting ring 383 to move, thereby prompting the marking pen 384 to move downward until the pen tip touches the groove 39 area on the scale. As the rectangular block 392 continues to move, the marking pen 384 draws a marking line in the groove 39. After a single tap, due to the elastic force of the first spring 395 and the second spring 373, the rectangular block 392 can be pulled to the initial position. It can be seen from the above steps that the marked marking pen 384 is lifted up again and moved to the initial position to facilitate the next marking;

[0057] The position where the rubber strip begins to be subjected to the pulling force can be determined through the above marks, and then the first motor 33 continues to work, prompting the two moving blocks 31 to continue to move away from each other, so as to continue to pull the rubber strip. If it is necessary to detect the extreme pulling resistance of the rubber strip when it is pulled and broken, then at the moment when the rubber strip breaks, the pressure sensor 37 is no longer subjected to pressure. At this time, the above steps are repeated, and the marking pen 384 can be controlled to mark the position at the time of the break. Or when it is necessary to mark any pulling length, it can also be marked through the above similar steps. The detection process is more flexible and diverse. After the detection is completed, the final pulling length can be obtained by comparing the terminal mark after the detection with the initial mark at the beginning of the pulling and the degree on the scale 38. Compared with manual recording, it is more labor-saving and accurate.

[0058] When the marker pen 384 needs to be replaced, the second threaded rod 372 is directly rotated, and the second threaded rod 372 drives the clamping plate 371 to move until the clamping plate 371 is no longer in contact with the marker pen 384, and the marker pen 384 can be pulled out of the mounting ring 383 for replacement or maintenance. After a single test is completed, the electric push rod 379 works and pulls the lifting plate 376 downward, so that the lifting plate 376 drives the wiping plate 377 to move downward until it contacts the inside of the groove 39, and the above control movement block is repeated. The operation of moving the wiper plate 377 in the groove 39 can realize the purpose of moving the wiper plate 377 in the groove 39 and wiping off the mark of the last marking, so as to facilitate the rapid implementation of the next detection work. If the wiper plate 377 needs to be cleaned and replaced, the block 361 can be directly pinched into the lifting plate 376, and the lifting plate 376 can be taken out from the socket 378, so as to disassemble and clean the wiper plate 377. The operation is flexible and convenient, which is conducive to ensuring the stable and normal implementation of the marking and mark cleaning work.

[0059] Finally, in order to prevent the rubber strip from breaking during the pulling process and causing harm to surrounding personnel due to its elasticity, at the beginning of the detection work, the third motor 54 works and drives the second bidirectional threaded rod 53 to rotate, and the second bidirectional threaded rod 53 drives the two movable blocks 55 to move. After the movable block 55 moves, it drives the push-pull rod 56 to flip. After the push-pull rod 56 flips, the grid protection frame 51 can be pulled up and down. When the grid protection frame 51 moves downward to cover the top of the base frame 2, the protection function can be realized. In addition, due to the grid wall on the grid protection frame 51, on the basis of realizing the protection function, the staff can also observe the internal detection situation, which has strong practicality and safety.

[0060] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rubber plastic strip tensile strength testing device, comprising a bottom plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected to a base frame (2), and a detection mechanism (3) is provided on the base frame (2); The detection mechanism (3) comprises two moving blocks (31), both of which are slidably connected to the inside of the base frame (2), and the moving blocks (31) extend outside the base frame (2), a first bidirectional threaded rod (32) is rotatably connected to the inside of the base frame (2), the first bidirectional threaded rod (32) sequentially passes through the two moving blocks (31), and the first bidirectional threaded rod (32) is respectively connected to the two moving blocks (31) by threads, and a first motor (33) is fixedly connected to a side wall of the base frame (2), and the first motor (3 3) being fixedly connected to the first bidirectional threaded rod (32) through the output shaft, the top of the moving block (31) being fixedly connected to a vertical plate (34), one side of the vertical plate (34) being provided with a positioning frame (35), one side of the positioning frame (35) being fixedly connected to a connecting plate (36), the connecting plate (36) penetrating the vertical plate (34), the vertical plate (34) being fixedly connected to a pressure sensor (37), the pressure sensor (37) being in contact with the inner side of the connecting plate (36), and the pressure sensor (37) being electrically connected to the first motor (33); The top of the base frame (2) is fixedly connected to a scale (38), the scale (38) is provided with a groove (39), one side of the vertical plate (34) is fixedly connected to a U-shaped plate (391), a rectangular block (392) is arranged inside the U-shaped plate (391), a trapezoidal block (393) is arranged on the top of the rectangular block (392), a touch plate (394) is fixedly connected inside the U-shaped plate (391), the touch plate (394) is arranged on the top of the trapezoidal block (393) and is connected to the trapezoidal block (393). The first spring (395) is fixedly connected to the bottom of the trapezoidal block (393), the bottom of the first spring (395) is fixedly connected to the top of the rectangular block (392), one side of the rectangular block (392) is fixedly connected to a control plate (396), the touch plate (394) extends into the interior of the vertical plate (34), the vertical plate (34) is rotatably connected to a sleeve (397), the sleeve (397) penetrates the vertical plate (34), and the sleeve (397) is fixedly connected to the outside of the knocking wheel (398), the knocking wheel (398) is arranged on one side of the control panel (396), the top of the base frame (2) is fixedly connected to two support plates (399), a square rod (381) is rotatably connected between the two support plates (399), one side of one of the support plates (399) is fixedly connected to a second motor (382), the second motor (382) is fixedly connected to the square rod (381) via an output shaft, the second motor (382) is electrically connected to the pressure sensor (37), the square The rod (381) passes through the sleeve (397) and matches with the sleeve (397); a mounting ring (383) is arranged at the bottom of the rectangular block (392); a marking pen (384) is placed inside the mounting ring (383); the marking pen (384) is arranged at the top of the groove (39); a connecting plate (385) is fixedly connected to the top of the mounting ring (383); the connecting plate (385) passes through the rectangular block (392); and the top of the connecting plate (385) is fixedly connected to the bottom of the trapezoidal block (393).

2. A rubber plastic strip tensile capacity detection device according to claim 1, characterized in that: A lower clamping plate (386) is fixedly connected to the bottom inner side of the positioning frame (35), and an upper clamping plate (387) is arranged on the top of the lower clamping plate (386). Anti-slip stripes are integrally formed on the upper clamping plate (387) and the lower clamping plate (386). A first threaded rod (388) is rotatably connected to the top of the upper clamping plate (387), and a first limiting rod is also fixedly connected to the top of the upper clamping plate (387). Both the first threaded rod (388) and the first limiting rod extend out of the positioning frame (35), and the first threaded rod (388) is connected to the top wall of the positioning frame (35) by threads.

3. A rubber plastic strip tensile capacity detection device according to claim 1, characterized in that: A pointer plate (389) is fixedly connected inside the U-shaped plate (391), and the pointer plate (389) is arranged at the bottom of the control plate (396), and the pointer plate (389) extends outside the U-shaped plate (391).

4. A rubber plastic strip tensile capacity detection device according to claim 1, characterized in that: A clamping plate (371) is arranged inside the mounting ring (383), and the clamping plate (371) is in contact with the outer surface of the marking pen (384). A second threaded rod (372) is rotatably connected to the clamping plate (371), and the second threaded rod (372) extends out of the mounting ring (383) and is threadedly connected to the mounting ring (383). A second limiting rod is fixedly connected to the clamping plate (371), and the second limiting rod extends out of the mounting ring (383).

5. The rubber plastic strip tensile capacity detection device according to claim 1, characterized in that: A second spring (373) is fixedly connected to one side wall of the inner cavity of the vertical plate (34), and one end of the second spring (373) is fixedly connected to the inner side of the control plate (396).

6. A rubber plastic strip tensile capacity detection device according to claim 1, characterized in that: A guide rod (374) is fixedly connected to the inner side of the U-shaped plate (391), one end of the guide rod (374) is fixedly connected to one side of the vertical plate (34), and the guide rod (374) passes through the rectangular block (392).

7. The rubber plastic strip tensile capacity detection device according to claim 1, characterized in that: The detection mechanism (3) comprises a wiping assembly, which comprises a support plate (375), wherein the support plate (375) is fixedly connected to the top of a U-shaped plate (391), a lifting plate (376) is arranged on the outside of the U-shaped plate (391), the lifting plate (376) passes through the top wall of the support plate (375), a wiping plate (377) is arranged at the bottom of the lifting plate (376), two plug sockets (378) are fixedly connected to the top of the wiping plate (377), and two ends of the bottom of the lifting plate (376) respectively extend into the interior of the two plug sockets (378) and match the plug sockets (378).

8. A rubber plastic strip tensile capacity detection device according to claim 7, characterized in that: The top of the bracket plate (375) is fixedly connected to an electric push rod (379), and the top of the electric push rod (379) is fixedly connected to the inner side of the lifting plate (376). The inside of both side walls of the lifting plate (376) is slidably connected with a clamping block (361), and the clamping block (361) extends out of the lifting plate (376). A spring sheet (362) is fixedly connected to one side of the clamping block (361), and the spring sheet (362) is fixedly connected to the inside of the lifting plate (376). A through groove is opened on one side wall of the socket (378), and the clamping block (361) passes through the through groove and matches with the through groove.

9. The rubber plastic strip tensile capacity detection device according to claim 1, characterized in that: The top of the bottom plate (1) is fixedly connected to a main plate (4), the main plate (4) is arranged on the outside of the base frame (2), a protective mechanism (5) is arranged on the main plate (4), the protective mechanism (5) comprises a grid protective frame (51), the grid protective frame (51) is arranged on the top of the base frame (2), both sides of the grid protective frame (51) are fixedly connected to sliding blocks (52), the sliding blocks (52) penetrate through a side wall of the main plate (4) and are slidably connected to the main plate (4).

10. A rubber plastic strip tensile capacity detection device according to claim 9, characterized in that: A second bidirectional threaded rod (53) is rotatably connected to the inner side of the main body plate (4); a third motor (54) is fixedly connected to one side wall of the main body plate (4); the third motor (54) is fixedly connected to one end of the second bidirectional threaded rod (53) via an output shaft; two movable blocks (55) are slidably connected to the top wall of the main body plate (4); the second bidirectional threaded rod (53) sequentially penetrates the two movable blocks (55), and the second bidirectional threaded rod (53) is respectively connected to the two movable blocks (55) via threads; a push-pull rod (56) is movably connected to the bottom of the movable block (55) via a movable hinge seat; one end of the push-pull rod (56) is movably connected to the top wall of the grid protection frame (51) via a movable hinge seat.

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