High-precision PP material plate strength testing mechanism

Abstract

The utility model relates to the technical field of PP (polypropylene) plate testing, and discloses a high-precision PP material plate strength testing mechanism, which is characterized in that an adjustable clamping tool for clamping and positioning a PP plastic plate is arranged on a testing platform of a cantilever beam impact testing machine; the adjustable clamping tool comprises a servo linear module, a fixed seat, two guide rails, a limiting seat, a mounting seat, an exchangeable positioning block matched with mounting and positioning of the PP plastic plate, and a clamping block pushed by a threaded handle rod in threaded connection with the fixed seat and matched with the exchangeable positioning block to clamp and fix the PP plastic plate. The servo linear module is used for carrying out automatic centering treatment, accurate positioning of the PP plastic plate in the test process is ensured, positioning blocks of different sizes are replaced to adapt to the PP plastic plates of different sizes, and the test accuracy is ensured. An impact test is carried out on the PP plastic plate clamped and positioned on the adjustable clamping tool through the placed impact pendulum bob so as to test the impact strength of the PP plastic plate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to PP board testing technical field, specifically relates to a high accuracy PP material board strength test mechanism. BACKGROUND

[0002] In the research, development and production process of plastic materials, especially polypropylene (PP) materials, evaluating the impact strength of the material is an important quality indicator. Traditional impact strength testing methods include the pendulum impact test, which calculates the energy absorbed by the material by measuring the displacement difference of the pendulum before and after impact. However, in practical applications, PP plastic products often have defects such as notches and cracks, which can significantly affect the impact performance of the material. Therefore, conducting a notched impact test on PP plastic boards becomes a more realistic testing method.

[0003] The existing notched impact testing machine has the following defects in terms of operational convenience, test result accuracy and equipment adaptability: lack of high-precision positioning system, resulting in insufficient accuracy of PP plastic board positioning during the test, affecting the repeatability and accuracy of the test results. Poor equipment adaptability, usually only suitable for PP plastic boards of specific sizes, unable to flexibly handle boards of different sizes and specifications. Lack of effective safety protection measures, with safety hazards during operation.

[0004] To solve the defects of the prior art, a high-precision PP material board strength testing mechanism is proposed. SUMMARY

[0005] The present invention aims to solve the technical problem of poor equipment adaptability in the prior art, which can only accommodate PP plastic boards of specific sizes and cannot flexibly handle boards of different sizes and specifications for impact strength testing.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A high-precision PP material board strength testing mechanism, including a cantilever beam impact testing machine for conducting a notched impact test on a PP plastic board, the cantilever beam impact testing machine including a machine case and a test platform, the cantilever beam of the machine case being provided with an impact pendulum; the test platform is provided with an adjustable clamping tool for clamping and positioning the PP plastic board;

[0008] The adjustable clamping tool comprises a servo linear module fixed on the test platform, a fixed seat fixed on the moving slide table of the servo linear module, two guide rails fixed on the fixed seat, a limiting seat fixed on the top left side of the fixed seat and located between the two guide rails, a mounting seat fixed on the right side of the fixed seat, an adjustable positioning block limited on the right side of the limiting seat and matched with the PP plastic plate for mounting and positioning, a clamping block pushed by the threaded handle rod connected with the fixed seat and guided to slide along the two guide rails to match the adjustable positioning block for clamping and fixing the PP plastic plate.

[0009] The adjustable clamping tool is impacted by the impact pendulum of the pendulum to test the impact strength of the PP plastic plate.

[0010] Preferably, the bottom corners of the test platform are provided with supporting feet.

[0011] Preferably, the front side of the cantilever beam on the case is fixedly provided with a touch panel, and one side of the case is further provided with a printer.

[0012] Preferably, the adjustable positioning block is in a U-shaped structure and is guided to slide in cooperation with the two guide rails, and the mounting seat is provided with a positioning groove matched with the PP plastic plate for plug-in positioning.

[0013] By replacing the adjustable positioning block with different size positioning grooves, the plug-in positioning of PP plastic plates of different sizes can be matched. By replacing the positioning grooves of different sizes, the device can be applied to PP plastic plates of different sizes, improving the versatility and flexibility of the device.

[0014] Preferably, the outer side end of the threaded handle rod is fixedly provided with a hand holding position, and the inner side end is rotationally connected with the clamping block.

[0015] Preferably, the top of the clamping block is sleeved with an inverted U-shaped positioning plate inserted into the insertion gap, and the inverted U-shaped positioning plate is positioned on the clamping block by two positioning pins penetrating through the inverted U-shaped positioning plate and inserted into the clamping block. The use of the inverted U-shaped positioning plate and the positioning pins improves the positioning accuracy of the gap on the PP plastic plate, ensuring the stability and repeatability of the PP plastic plate during the test.

[0016] Preferably, the top of the test platform and located on both sides of the case is provided with a protective cover, and the front side of the left protective cover is fixedly provided with a transparent protective plate by screws. The protective cover can prevent the operator from accidentally contacting the moving parts or test materials during the test, improving the safety of the operation.

[0017] Compared with the prior art, the technical effects and advantages of the utility model are:

[0018] The high-precision PP material plate strength testing mechanism utilizes a servo linear module for automatic centering processing to ensure accurate positioning of the PP plastic plate during the test process. The U-shaped positioning block and inverted U-shaped positioning plate improve the accuracy of notch positioning and simplify the placement and alignment process. By replacing positioning blocks of different sizes, the mechanism can accommodate PP plastic plates of different sizes, ensuring test accuracy. The adjustable clamping tool and servo linear module improve the positioning accuracy of the PP plastic plate, ensuring the accuracy of the test results. The threaded handle rod design makes the clamping and fixing process more convenient, reducing the difficulty and error of operation.

[0019] The adjustable positioning block allows the device to accommodate PP plastic plates of different sizes and specifications, increasing the versatility and flexibility of the device.

[0020] The protective cover and transparent protective plate improve the safety of the operation. The overall design of the device considers reducing wear and tear and reducing maintenance costs, ensuring long-term stable operation of the device. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic diagram of the utility model;

[0022] Figure 2 is a structural schematic diagram of the utility model after clamping the PP plastic plate;

[0023] Figure 3 is a structural schematic diagram of the adjustable clamping tool of the utility model;

[0024] Figure 4 is a structural schematic diagram of the adjustable clamping tool of the utility model after clamping the PP plastic plate.

[0025] In the figure: 1, cantilever beam impact testing machine; 2, PP plastic plate; 3, notch; 4, case; 5, impact pendulum; 6, test platform; 7, adjustable clamping tool; 71, servo linear module; 72, fixed seat; 73, guide rail; 74, limit seat; 75, mounting seat; 76, replaceable positioning block; 77, threaded handle rod; 78, clamping block; 79, positioning groove; 710, handheld position; 711, inverted U-shaped positioning plate; 712, positioning pin; 8, protective cover; 9, transparent protective plate; 10, support foot; 11, touch panel; 12, printer. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application. Figures 1-4 The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0028] The embodiment of the present application discloses a high-precision PP material plate strength testing mechanism, which comprises a cantilever beam impact testing machine 1 for impact testing of a notch 3 of a PP plastic plate 2. The cantilever beam impact testing machine 1 comprises a machine box 4 and a test platform 6. The bottom corners of the test platform 6 are provided with supporting feet 10. The front side of the cantilever beam of the machine box 4 is fixedly provided with a touch panel 11. One side of the machine box 4 is also provided with a printer 12. The supporting feet 10 can increase the stability of the test platform 6, prevent the platform from moving due to external force or impact force during operation, and thus ensure the accuracy of the test results. The supporting feet 10 are adjustable height supporting feet, which help to adjust the test platform 6 to a horizontal state on uneven ground, and ensure the reliability of the test data. The touch panel 11 allows the operator to intuitively and conveniently control the testing machine, input parameters, start and stop the test, and the like, and improves the convenience of operation. The touch panel 11 can display the test data and state in real time, help the operator to monitor the test process, and make timely adjustments.

[0029] The setting of the printer 12 allows the user to directly print out the test report and data on the test site, and conveniently and quickly records and reports the test results. The printed test data can be saved as original records, facilitating subsequent data analysis, archiving and tracing. The combination of the touch panel 11 and the printer 12 makes the entire test process more automated, reduces manual operation steps, and thus improves work efficiency.

[0030] The top of the test platform 6 and located on both sides of the machine box 4 is provided with a protective cover 8, and the front side of the left protective cover 8 is fixedly provided with a transparent protective plate 9. The protective cover 8 can prevent the operator from accidentally contacting the moving parts or test materials during the test process, and improves the safety of operation. The transparent protective plate 9 allows the operator to intuitively observe the test process and timely adjust and monitor the test state.

[0031] The cantilever beam of the machine box 4 is provided with an impact pendulum 5; the test platform 6 is provided with an adjustable clamping tool 7 for clamping and positioning the PP plastic plate 2;

[0032] The adjustable clamping tool 7 includes a servo linear module 71 fixed on the test platform 6, a fixed seat 72 fixed on the moving slide table of the servo linear module 71, two guide rails 73 fixed on the fixed seat 72, a limiting seat 74 fixed on the top left side of the fixed seat 72 and located between the two guide rails 73, a mounting seat 75 fixed on the right side of the fixed seat 72, an adjustable positioning block 76 limited on the right side of the limiting seat 74 and matched with the PP plastic plate 2 for installation and positioning, a clamping block 78 pushed by a threaded handle rod 77 threadedly connected on the fixed seat 72 and guided and slid along the two guide rails 73 to match the adjustable positioning block 76 for clamping and fixing the PP plastic plate 2;

[0033] The adjustable positioning block 76 is in a U-shaped structure and is guided and slid in cooperation with the two guide rails 73. The mounting seat 75 is provided with a positioning groove 79 matched with the PP plastic plate 2 for plug-in positioning. By replacing the adjustable positioning block 76 with different sizes of positioning grooves 79, the plug-in positioning of PP plastic plates 2 with different sizes can be matched. Only by replacing the positioning grooves 79 with different sizes can the device be applied to PP plastic plates 2 with different sizes, improving the versatility and flexibility of the device. The positioning block with a U-shaped structure can be quickly replaced, reducing the test preparation time and improving the work efficiency. The cooperation between the guide rails 73 and the positioning block ensures the accurate positioning of the PP plastic plate 2, which is crucial for ensuring the accuracy of the test results.

[0034] The outer side of the threaded handle rod 77 is provided with a hand holding position 710, and the inner side is rotationally connected with the clamping block 78. The provision of the hand holding position 710 enables the operator to conveniently hold and rotate the threaded handle rod 77, reducing the difficulty of operation.

[0035] The top of the clamping block 78 is sleeved with an inverted U-shaped positioning plate 711 inserted into the notch 3, and the inverted U-shaped positioning plate 711 is positioned on the clamping block 78 by two positioning pins 712 penetrating through it and inserted into the clamping block 78. The cooperation of the inverted U-shaped positioning plate 711 and the positioning pins 712 improves the positioning accuracy of the notch 3 on the PP plastic plate 2, ensuring the stability and repeatability of the PP plastic plate 2 during the test. The design of the inverted U-shaped positioning plate 711 helps to align the notch 3 of the PP plastic plate 2 with the impact point of the impact pendulum 5, ensuring the accuracy of the test. This design simplifies the placement and alignment process of the PP plastic plate 2, reducing the operation complexity.

[0036] After the positioning of the notch 3 on the PP plastic plate 2 is completed, the inverted U-shaped positioning plate 711 can be disassembled by removing the positioning pins 712 and sliding the inverted U-shaped positioning plate 711 to the right side, facilitating the impact test of the PP plastic plate 2 by the impact pendulum 5.

[0037] The adjustable clamping tool 7 is clamped and positioned on the PP plastic plate 2 by the impact pendulum 5 in the swing state for impact test to test the impact strength of the PP plastic plate 2.

[0038] The high-precision PP material plate strength testing mechanism can be adapted to the installation and positioning of PP plastic plates 2 of different sizes by replacing different replaceable positioning blocks 76, can make the clamping block 78 cooperate with the replaceable positioning block 76 to clamp and fix the PP plastic plate 2 by screwing the threaded handle rod 77, and finally can center the clamped PP plastic plate 2 by the servo linear module 71, so as to cooperate with the impact pendulum 5 to perform a notch 3 impact test on the PP plastic plate 2 with the prefabricated notched 3.

[0039] The servo linear module 71 and the adjustable clamping tool 7 can realize accurate positioning of the PP plastic plate 2, ensure the accuracy and repeatability of the test results, and the design of the replaceable positioning block 76 allows the mechanism to adapt to PP plastic plates 2 of different sizes and specifications, increasing the application range of the equipment. The design of the threaded handle rod makes the clamping and fixing process of the PP plastic plate 2 more convenient, and the user can easily fix the plate by rotating the handle. The use of the servo linear module 71 can realize automatic centering, reduce errors in the manual operation process, and improve the test efficiency.

[0040] The design of the clamping block 78 and the replaceable positioning block 76 can ensure reliable fixation of the PP plastic plate 2 during the impact test, preventing safety accidents caused by material displacement during the test. The design of the mechanism is simple, has few wear parts, and is easy to replace, so the maintenance cost is low. The notch 3 impact test on the PP plastic plate 2 by the impact pendulum 5 can obtain accurate impact strength data, which has important value for material quality control and product research and development.

[0041] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A high-precision PP material plate strength testing mechanism, comprising a cantilever beam impact testing machine (1) for conducting an impact test on a notch (3) of a PP plastic plate (2), characterized in that, The cantilever beam impact testing machine (1) comprises: A machine box (4) is provided with an impact pendulum (5) on the cantilever beam of the machine box (4); A test platform (6) is provided with an adjustable clamping tool (7) for clamping and positioning the PP plastic plate (2) on the test platform (6); The adjustable clamping tool (7) comprises a servo linear module (71) fixed on the test platform (6), a fixed seat (72) fixed on the movable sliding table of the servo linear module (71), two guide rails (73) fixed on the fixed seat (72), a limiting seat (74) fixed on the top left side of the fixed seat (72) and located between the two guide rails (73), an installation seat (75) fixed on the right side of the fixed seat (72), an adjustable positioning block (76) limiting the right side of the limiting seat (74) and cooperating with the PP plastic plate (2) for installation and positioning, a clamping block (78) pushed by the threaded handle rod (77) threaded on the fixed seat (72) and guided and slid along the two guide rails (73) to cooperate with the adjustable positioning block (76) to clamp and fix the PP plastic plate (2); The adjustable clamping tool (7) is impacted by the impact pendulum (5) to test the impact strength of the PP plastic plate (2).

2. The high-precision PP material plate strength testing mechanism according to claim 1, characterized in that: The bottom four corners of the test platform (6) are provided with supporting feet (10).

3. The high-precision PP material plate strength testing mechanism according to claim 1, characterized in that: The front side of the cantilever beam of the machine box (4) is fixedly provided with a touch panel (11), and one side of the machine box (4) is further provided with a printer (12).

4. The high-precision PP material plate strength testing mechanism according to claim 1, characterized in that: The adjustable positioning block (76) is of U-shaped structure and cooperates with the two guide rails (73) for guided sliding, and the installation seat (75) is provided with a positioning groove (79) for cooperating with the PP plastic plate (2) for plug-in positioning; By replacing the adjustable positioning block (76) with different size positioning grooves (79) to cooperate with the plug-in positioning of PP plastic plates (2) of different sizes.

5. The high-precision PP material plate strength testing mechanism according to claim 1, characterized in that: The outer side of the threaded handle rod (77) is fixedly provided with a hand holding position (710), and the inner side is rotatably connected with the clamping block (78).

6. The high-precision PP material plate strength testing mechanism according to claim 1, characterized in that: The top of the clamping block (78) is sleeved with an inverted U-shaped positioning plate (711) inserted into the insertion gap (3), and the inverted U-shaped positioning plate (711) is positioned on the clamping block (78) by penetrating it and inserting two positioning pins (712) on the clamping block (78).

7. The high-precision PP material plate strength testing mechanism according to claim 1, characterized in that: The top of the test platform (6) and located on both sides of the machine box (4) is provided with a protective cover (8), and the front side of the left protective cover (8) is fixedly provided with a transparent protective plate (9) by screws.

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