Rubber strength testing device

Abstract

The utility model discloses a rubber strength testing device and belongs to the technical field of rubber processing. A rubber strength testing device comprises a working plate, a strength testing assembly and a first clamping assembly are arranged on the upper portion of the working plate, a second clamping assembly is arranged on the strength testing assembly, and the first clamping assembly and the second clamping assembly are used for clamping the two ends of a rubber strip to be tested. The strength testing assembly drives the second clamping assembly to slide transversely and is used for stretching the rubber strip to be tested and measuring the tensile force corresponding to the stretching length of the rubber strip, so that the strength of the rubber strip is measured. According to the rubber strip strength testing device, the rubber strip to be tested can be stretched only through the two clamping assemblies and the strength testing assembly using the tension meter, the corresponding tension force under the stretching length of the rubber strip to be tested is recorded, the strength of the rubber strip is measured, and therefore the rubber strip strength testing device is convenient to use and low in production and manufacturing cost.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber processing, and more specifically, to a rubber strength testing device. Background Technique

[0002] Rubber refers to a highly elastic polymer material with reversible deformation. It is elastic at room temperature, can produce large deformation under a very small external force, and can return to its original state after removing the external force. During the rubber processing process, a rubber strength testing device is required.

[0003] The Chinese patent document with the publication number CN209878489U in the prior art provides a rubber strength testing device, including a fixed table. A workbench is fixedly installed at the top of the fixed table. Fixing plates are fixedly installed on both sides of the top of the workbench. A second fixing frame is fixedly installed on one fixing plate. A rotating rod is inserted and installed in the middle of the other fixing plate. One end of the rotating rod is installed with a first fixing frame, and the other end of the rotating rod is fixedly connected to the output shaft of the motor through a coupling. A displacement sensor is fixedly installed on one side of the first fixing frame close to the rotating rod. Double-layer clamping plates are installed between the first fixing frame and the second fixing frame. Upper and lower two grooves are opened at both ends of the double-layer clamping plates, and a spring is fixedly installed between the upper and lower two grooves, so as to be able to conveniently and efficiently test the rubber strength.

[0004] In the prior art, the rubber strength test is completed through a displacement sensor and a control chip, resulting in a relatively high production and manufacturing cost of the test equipment. In view of this, we propose a rubber strength testing device. Content of the Utility Model

[0005] 1. Technical Problems to be Solved

[0006] The purpose of the utility model is to provide a rubber strength testing device to solve the problem of the production and manufacturing cost of the test equipment proposed in the above background technique.

[0007] 2. Technical Solution

[0008] A rubber strength testing device includes a workboard. A strength testing component and a first clamping component are arranged on the upper part of the workboard. A second clamping component is arranged on the strength testing component. The first clamping component and the second clamping component are used to clamp both ends of the rubber strip to be tested. The strength testing component drives the second clamping component to slide horizontally to stretch the rubber strip to be tested, measure the corresponding tensile force at the stretched length of the rubber strip, and complete the measurement of the rubber strip strength.

[0009] Preferably, the first clamping assembly includes a first clamping block fixedly arranged at one end of the working plate and a first electric telescopic rod. A second clamping block is arranged at the output end of the first electric telescopic rod, and the first clamping block and the second clamping block are adapted to each other.

[0010] Preferably, a first sliding rail is formed on the working plate. The strength testing assembly includes a slider movably arranged inside the first sliding rail. The second clamping assembly includes a third clamping block fixedly arranged on the slider and a second electric telescopic rod. A fourth clamping block is arranged at the output end of the second electric telescopic rod, and the fourth clamping block and the third clamping block are adapted to each other.

[0011] Preferably, the strength testing assembly includes an electric third telescopic rod arranged on the working plate. A tensiometer is arranged at the output end of the electric third telescopic rod, and the measuring end of the tensiometer is connected to the side wall of the slider.

[0012] Preferably, a pointer is arranged on the slider, and the pointer is aligned with the side wall of the third clamping block. Scale lines are arranged on the working plate, and the starting point of the scale lines is aligned with the initial position of the pointer.

[0013] Preferably, a second sliding rail is formed on the working plate. A blocking piece is movably arranged inside the second sliding rail. A pressing switch is arranged at the output end of the electric third telescopic rod, and the pressing switch and the blocking piece are adapted to each other.

[0014] Preferably, triangular protrusions are arranged between the opposite surfaces of the first clamping block and the second clamping block, and triangular protrusions are arranged between the opposite surfaces of the fourth clamping block and the third clamping block.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present utility model are as follows:

[0017] 1. In the present utility model, the device only needs two clamping assemblies and a strength testing assembly using a tensiometer to be able to stretch the rubber strip to be tested and record the corresponding tensile force at the stretching length of the rubber strip to be tested, completing the measurement of the strength of the rubber strip, making the device convenient to use and having a low production and manufacturing cost.

[0018] 2. In the present utility model, first, when the output end of the electric third telescopic rod slides horizontally, the pressing switch slides horizontally accordingly. When the pressing switch contacts the blocking piece, the pressing switch is pressed. At this time, the output end of the electric third telescopic rod no longer moves forward and maintains its current position. Furthermore, when the position of the set blocking piece inside the second slide rail is achieved, the horizontal sliding length of the output end of the electric third telescopic rod is set. For example, if the blocking piece is horizontally slid 10 cm inside the second slide rail from the initial position, then during subsequent detection, the rubber strip is stretched 10 cm and no longer stretched. Record the reading of the tensiometer at this time to complete the detection, making the detection scenarios of this device diverse. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an isometric structural schematic diagram of the present utility model;

[0020] Figure 2 is an overall structural schematic diagram of the present utility model;

[0021] Figure 3 for the present utility model Figure 2 is an enlarged structural schematic diagram of part A in the present utility model;

[0022] Figure 4 is a top view structural schematic diagram of the present utility model;

[0023] Reference numeral description in the figures: 1, working plate; 2, strength testing assembly; 3, first clamping assembly; 4, second clamping assembly; 5, blocking piece; 6, pressing switch; 101, first slide rail; 102, second slide rail; 201, slider; 202, electric third telescopic rod; 203, tensiometer; 204, pointer; 205, scale line; 301, first clamping block; 302, first electric telescopic rod; 303, second clamping block; 401, third clamping block; 402, second electric telescopic rod; 403, fourth clamping block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0025] In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0028] A rubber strength testing device, including a working plate 1, a strength testing component 2 and a first clamping component 3 are provided on the upper part of the working plate 1, a second clamping component 4 is provided on the strength testing component 2, and the first clamping component 3 and the second clamping component 4 are used to clamp both ends of the rubber strip to be tested. The strength testing component 2 drives the second clamping component 4 to slide horizontally to stretch the rubber strip to be tested, measure the corresponding tensile force at the stretched length of the rubber strip, and complete the measurement of the rubber strip strength.

[0029] In actual use, in the present utility model, this device only needs two clamping components and a strength testing component 2 using a tensiometer 203 to be able to stretch the rubber strip to be tested and record the corresponding tensile force at the stretched length of the rubber strip to be tested, and complete the measurement of the rubber strip strength, making this device convenient to use and having a low production and manufacturing cost.

[0030] Preferably, the first clamping component 3 includes a first clamping block 301 fixedly arranged at one end of the working plate 1 and a first electric telescopic rod 302. A second clamping block 303 is provided at the output end of the first electric telescopic rod 302, and the first clamping block 301 and the second clamping block 303 are mutually adapted.

[0031] It should be noted that in actual use, the first electric telescopic rod 302 drives the second clamping block 303 to slide horizontally to cooperate with the first clamping block 301 to clamp one end of the rubber strip to be detected.

[0032] Preferably, a first slide rail 101 is opened on the working plate 1. The strength testing component 2 includes a slider 201 movably arranged inside the first slide rail 101. The second clamping component 4 includes a third clamping block 401 fixedly arranged on the slider 201 and a second electric telescopic rod 402. A fourth clamping block 403 is provided at the output end of the second electric telescopic rod 402, and the fourth clamping block 403 and the third clamping block 401 are mutually adapted.

[0033] It should be added that the output end of the second electric telescopic rod 402 drives the fourth clamping block 403 to slide horizontally, so as to cooperate with the third clamping block 401 to clamp the other end of the rubber strip to be detected.

[0034] Preferably, the strength test assembly 2 includes an electric third telescopic rod 202 arranged on the working plate 1. A tensiometer 203 is provided at the output end of the electric third telescopic rod 202, and the measuring end of the tensiometer 203 is connected to the side wall of the slider 201.

[0035] In actual use, after clamping the rubber strip to be detected, the output end of the electric third telescopic rod 202 drives the slider 201 to slide horizontally through the tensiometer 203, so as to drive the second clamping assembly 4 to stretch the rubber strip to be detected. At a specific stretching length, the tensile force of the rubber strip to be detected is calculated through the tensiometer 203.

[0036] It should be added that the tensiometer 203 is obtained by purchasing in the market, and the structure of the tensiometer 203 here will not be described in detail.

[0037] Preferably, a pointer 204 is provided on the slider 201, and the pointer 204 is aligned with the side wall of the third clamping block 401. Scale lines 205 are provided on the working plate 1, and the starting point of the scale lines 205 is aligned with the initial position of the pointer 204.

[0038] In actual use, when the output end of the electric third telescopic rod 202 drives the slider 201 to slide horizontally through the tensiometer 203, the stretching length is read through the cooperation of the pointer 204 and the scale lines 205, so as to record the stretching length of the rubber strip to be detected, and the tensile force generated by the rubber strip after stretching a certain length can be obtained intuitively, and then the rubber strength test is completed.

[0039] Preferably, a second slide rail 102 is opened on the working plate 1. A blocking piece 5 is movably arranged in the second slide rail 102. A pressing switch 6 is provided at the output end of the electric third telescopic rod 202, and the pressing switch 6 is adapted to the blocking piece 5.

[0040] In actual use, first, when the output end of the electric third telescopic rod 202 slides horizontally, the pressing switch 6 slides horizontally accordingly. When the pressing switch 6 contacts the blocking piece 5, the pressing switch 6 is pressed. At this time, the output end of the electric third telescopic rod 202 no longer moves forward and maintains the current position. Furthermore, when the position of the blocking piece 5 inside the second slide rail 102 is set, the horizontal sliding length of the output end of the electric third telescopic rod 202 is set. For example, if the blocking piece 5 is slid horizontally 10 CM inside the second slide rail 102 from the initial position, then during the subsequent detection process, the rubber strip is stretched 10 CM and no longer stretched. Record the reading of the tensiometer 203 at this time to complete the detection, making the detection scenarios of this device diverse.

[0041] It should be noted that when the pressing switch 6 is pressed, the output end of the electric third telescopic rod 202 no longer moves forward and maintains its current position. The connection circuit between the pressing switch 6 and the electric third telescopic rod 202 is common knowledge in the art and will not be elaborated here. When the lower end of the blocking piece 5 slides horizontally inside the second slide rail 102, it can be fixed inside the second slide rail 102 after sliding a certain position. When the blocking piece 5 needs to be adjusted again, manual adjustment is required and re-limiting is needed. An insertion pin can be used as the limiting device here.

[0042] Preferably, triangular protrusions are provided between the opposite surfaces of the first clamping block 301 and the second clamping block 303, and triangular protrusions are provided between the opposite surfaces of the fourth clamping block 403 and the third clamping block 401.

[0043] In actual use, the clamping effect is improved by setting the triangular protrusions, preventing the first clamping assembly 3 or the second clamping assembly 4 from loosening during clamping, and ensuring the detection effect.

[0044] The electric third telescopic rod 202, the first electric telescopic rod 302, and the second electric telescopic rod 402, as well as the electronic components and modules involved in this embodiment, are all prior art and can be fully realized by those skilled in the art without further elaboration. The content protected by the present invention does not involve improvements to the internal structure and method either.

[0045] Working principle: First, one end of the rubber strip to be detected is placed between the opposite surfaces of the first clamping block 301 and the second clamping block 303, and the other end of the rubber strip is placed between the fourth clamping block 403 and the third clamping block 401. The first electric telescopic rod 302 drives the second clamping block 303 to slide horizontally, so as to cooperate with the first clamping block 301 to clamp one end of the rubber strip to be detected. The output end of the second electric telescopic rod 402 drives the fourth clamping block 403 to slide horizontally, so as to cooperate with the third clamping block 401 to clamp the other end of the rubber strip to be detected. When the output end of the electric third telescopic rod 202 drives the slider 201 to slide horizontally through the dynamometer 203, the stretching length is read through the pointer 204 and the scale line 205, thereby recording the stretching length of the rubber strip to be detected, and the pulling force generated by the rubber strip after stretching a certain length can be intuitively obtained, and then the rubber strength test is completed.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A rubber strength testing device, characterized in that: The invention comprises a working plate (1), wherein a strength testing assembly (2) and a first clamping assembly (3) are arranged on the upper part of the working plate (1), a second clamping assembly (4) is arranged on the strength testing assembly (2), the first clamping assembly (3) and the second clamping assembly (4) are used to clamp the two ends of the rubber strip to be tested, the strength testing assembly (2) drives the second clamping assembly (4) to slide horizontally, so as to stretch the rubber strip to be tested, and record the tensile force corresponding to the stretched length of the rubber strip to be tested, so as to complete the measurement of the strength of the rubber strip, the working plate (1) is provided with a first slide rail (101), the strength testing assembly (2) comprises an electric third telescopic assembly (102) arranged on the working plate (1), and the second telescopic assembly (103) is arranged on the working plate (1). The invention relates to a motor-driven telescopic rod (202) and a slider (201) movably arranged inside the first slide rail (101); the second clamping assembly (4) comprises a third clamping block (401) fixedly arranged on the slider (201); a dynamometer (203) is provided at the output end of the electric third telescopic rod (202); a measuring end of the dynamometer (203) is connected to the side wall of the slider (201); a pointer (204) is provided on the slider (201); the pointer (204) is aligned with the side wall of the third clamping block (401); and a scale line (205) is provided on the working plate (1); a starting point of the scale line (205) is aligned with an initial position of the pointer (204).

2. A rubber strength testing device according to claim 1, characterized in that: The first clamping assembly (3) comprises a first clamping block (301) fixedly arranged at one end of the working plate (1) and a first electric telescopic rod (302); a second clamping block (303) is arranged at the output end of the first electric telescopic rod (302); the first clamping block (301) and the second clamping block (303) are adapted to each other.

3. A rubber strength testing device according to claim 2, characterized in that: The second clamping assembly (4) further comprises a second electric telescopic rod (402), the output end of the second electric telescopic rod (402) being provided with a fourth clamping block (403), the fourth clamping block (403) being adapted to fit the third clamping block (401) to each other.

4. A rubber strength testing device according to claim 3, characterized in that: The working plate (1) is provided with a second slide rail (102), a blocking plate (5) is movably provided inside the second slide rail (102), a push switch (6) is provided at the output end of the electric third telescopic rod (202), and the push switch (6) and the blocking plate (5) are adapted to each other.

5. A rubber strength testing device according to claim 4, characterized in that: A triangular convex block is provided between the opposing surfaces of the first clamping block (301) and the second clamping block (303), and a triangular convex block is provided between the opposing surfaces of the fourth clamping block (403) and the third clamping block (401).

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