Plastic strength detection mechanism

Abstract

The utility model relates to a plastic strength detection mechanism in the plastic field, which comprises a test platform, a clamping seat and a pressure assembly are arranged on the test platform, the pressure assembly comprises an electric push rod and a pressure sensor, a lower pressure head is arranged on a telescopic rod of the electric push rod, and the pressure sensor is arranged on the lower pressure head. A telescopic rod of the electric push rod can extend upwards to the position above the testing platform, a supporting frame is arranged on the testing platform, an upper pressing head and displacement sensors are arranged on the supporting frame, the displacement sensors are arranged on the periphery of the upper pressing head, the upper pressing head and the lower pressing head are coaxial, and a controller and a display screen are arranged on the side wall of the testing platform. The electric push rod, the pressure sensor, the displacement sensor and the display screen are all electrically connected with the controller, the controller receives electric signals sent by the pressure sensor and the displacement sensor, the electric signals are processed and then sent to the display screen to be displayed, and full-automatic operation of strength detection of the plastic sample is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of plastics, especially a plastic strength detection mechanism. BACKGROUND

[0002] Plastic products are widely used in daily life, industrial production and high-tech fields as a material, and are favored because of its light weight, high strength, corrosion resistance, easy processing and other characteristics. With the progress of science and technology and the improvement of people's requirements for product quality, the types and uses of plastic products are increasingly rich, and the performance requirements for plastic products are increasingly high. Among them, the strength characteristics of plastic are one of the important indicators to measure the quality, which is directly related to the service life and safety of plastic products.

[0003] In the production process of plastic products, quality detection is an important link to ensure product quality. Strength detection, as a key item in quality detection, is of great significance to evaluate the load capacity and durability of plastic products. The traditional plastic strength detection method often needs manual pressure, observation and data recording, which is not only cumbersome, but also easily affected by human factors, resulting in inaccurate detection results. UTILITY MODEL CONTENT

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a plastic strength detection mechanism, which can effectively solve the technical problem of manual pressure, observation and data recording.

[0005] The utility model solves the technical problems by adopting the following technical scheme:

[0006] A plastic strength detection mechanism, comprising a test platform, a clamping seat and a pressure assembly are arranged on the test platform, the clamping seat is used for clamping a plastic sample to be detected, and the pressure assembly is used for applying adjustable pressure to the plastic sample, the clamping seat is provided with two, which are symmetrically arranged on the test platform, the pressure assembly is arranged in the test platform and located between the two clamping seats, the pressure assembly comprises an electric push rod and a pressure sensor, a lower pressing head is arranged on the telescopic rod of the electric push rod, the pressure sensor is arranged on the lower pressing head, the telescopic rod of the electric push rod can be elongated upwards to above the test platform, a supporting frame is arranged on the test platform, an upper pressing head and a displacement sensor are arranged on the supporting frame, the displacement sensor is arranged around the upper pressing head, the upper pressing head is coaxial with the lower pressing head, the upper pressing head can move up and down relative to the test platform, the displacement sensor is used for detecting the displacement of the upper pressing head, a side wall of the test platform is provided with a controller and a display screen, the electric push rod, the pressure sensor, the displacement sensor and the display screen are electrically connected with the controller, the controller receives the electric signals sent by the pressure sensor and the displacement sensor, processes the electric signals and sends them to the display screen for display.

[0007] Further, the support frame is provided with an electric lifting rod and an L-shaped plate, the electric lifting rod is fixedly connected with the support frame, the electric lifting rod is used for driving the L-shaped plate to move up and down, the L-shaped plate is provided with a through hole, one end of the upper pressing head close to the through hole passes through the through hole, and the displacement sensor is installed on the side wall of the L-shaped plate and corresponds to the upper pressing head.

[0008] Further, the clamping seat is a pneumatic clamping jaw, and a replaceable clamping die is arranged on the clamping jaw of the pneumatic clamping jaw.

[0009] Further, two groups of electric lead screws are arranged in the test platform, two sliding grooves are arranged on the surface of the test platform, the two clamping seats pass through the two sliding grooves and are connected with screw nuts of the two groups of electric lead screws, and the two groups of electric lead screws are electrically connected with the controller.

[0010] Further, a guide rod is arranged in the test platform and is parallel to the electric lead screw, a guide sliding sleeve is arranged at one end of the clamping seat close to the test platform, and the guide sliding sleeve is in sliding fit with the guide rod.

[0011] Further, the telescopic rod of the electric push rod is provided with a threaded hole, and the lower pressing head is provided with a threaded column, and the lower pressing head is in threaded connection with the telescopic rod of the electric push rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are that: the lower pressing head and the upper pressing head are driven by the electric push rod to work cooperatively, the real-time monitoring and data processing of the controller on the pressure and displacement are combined, and full-automatic operation of the plastic sample strength detection is realized. The user only needs to fix the sample on the clamping seat, and can start the test process through the controller one key, without manual intervention, reading and other steps, so that the detection period is greatly shortened, and the detection efficiency is improved. By integrating the pressure sensor in the lower pressing head and arranging the displacement sensor around the upper pressing head, the mechanism can synchronously collect the pressure value applied in the test process and the deformation amount of the sample, and perform real-time processing and analysis on the data through the controller. The controller converts the electric signals collected by the pressure sensor and the displacement sensor into digital data, and displays the pressure-displacement curve, peak pressure, deformation limit and other key indicators on the display screen in real time. The user can directly read the test results through the interface. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a front view of the utility model;

[0014] Fig. 2 It is a structural schematic view of the utility model;

[0015] Fig. 3 It is a schematic view of the clamping seat in the utility model;

[0016] In the figure: 1-test platform, 2-clamping seat, 3-electric push rod, 4-pressing head, 5-support frame, 6-pressing head, 7-displacement sensor, 8-controller, 9-display screen, 10-clamping mold, 11-L-shaped plate, 12-electric lifting rod, 13-electric screw, 14-slotted. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. Figs. 1-3 A plastic strength detection mechanism is described in detail.

[0019] A plastic strength detection mechanism, comprising a test platform 1, the test platform 1 is provided with clamping seat 2 and pressure assembly, clamping seat 2 is used for clamping the plastic sample to be detected, pressure assembly is used for exerting adjustable pressure to the plastic sample, the clamping seat 2 is provided with two, two symmetrically arranged on the test platform 1, pressure assembly is arranged in the test platform 1 and is located between two clamping seats 2, pressure assembly includes electric push rod 3 and pressure sensor, the telescopic rod of electric push rod 3 is provided with lower pressing head 4, pressure sensor is arranged on lower pressing head 4, the telescopic rod of electric push rod 3 is provided with screw hole, lower pressing head 4 is provided with threaded column on, lower pressing head 4 and the telescopic rod of electric push rod 3 are connected in screw thread, facilitate the installation and disassembly of lower pressing head 4, it is convenient to maintain and replace.Simultaneously, screw thread connection also ensures the stability and reliability between lower pressing head 4 and the telescopic rod of electric push rod 3, improves the accuracy and safety of test.The telescopic rod of electric push rod 3 can be elongated to the upper of test platform 1, test platform 1 is provided with support frame 5, support frame 5 is provided with upper pressing head 6 and displacement sensor 7, displacement sensor 7 is arranged around upper pressing head 6, upper pressing head 6 is coaxial with lower pressing head 4, upper pressing head 6 can move up and down relative to test platform 1, displacement sensor 7 is used for detecting the displacement of upper pressing head 6, the side wall of test platform 1 is provided with controller 8 and display screen 9, electric push rod 3, pressure sensor, displacement sensor 7 and display screen 9 are electrically connected with controller 8, controller 8 receives the electric signal sent by pressure sensor and displacement sensor 7, after processing the electric signal, it is sent to display screen 9 and is shown.

[0020] The lower press head 4 is driven by the electric push rod 3 to work in cooperation with the upper press head 6, and the real-time monitoring and data processing of the pressure and displacement by the controller 8 realize the full automation of the plastic sample strength detection. The user only needs to fix the sample on the clamping seat 2, and can start the test process through the controller 8, without manual intervention for pressing and reading, which greatly shortens the detection period and improves the detection efficiency. By integrating the pressure sensor in the lower press head 4 and arranging the displacement sensor 7 around the upper press head 6, the mechanism can synchronously collect the pressure value and the deformation amount of the sample during the test process, and process and analyze the data in real time through the controller 8. The controller 8 converts the electric signals collected by the pressure sensor and the displacement sensor 7 into digital data, and displays the pressure-displacement curve, peak pressure, deformation limit and other key indicators in real time through the display screen 9. The user can directly read the test results through the interface.

[0021] The support frame 5 is provided with an electric lifting rod 12 and an L-shaped plate 11, the electric lifting rod 12 is fixedly connected with the support frame 5, and the electric lifting rod 12 is used to drive the L-shaped plate 11 to move up and down. The L-shaped plate 11 is provided with a through hole, one end of the upper press head 6 passes through the through hole, and the displacement sensor 7 is installed on the side wall of the L-shaped plate 11 and corresponds to the upper press head 6. When the plastic sample is clamped, the upper press head 6 can be lifted by the electric lifting rod 12, so as to leave space. After the plastic sample is clamped stably, the electric lifting rod 12 drives the L-shaped plate 11 to move downward, so that one end of the upper press head 6 contacts the surface of the plastic sample. The electric push rod 3 rises to apply a pressure to the plastic sample, so that the plastic sample is deformed, the plastic sample pushes the upper press head 6 to move, and the displacement sensor 7 captures the displacement amount of the upper press head 6.

[0022] Two groups of electric lead screws 13 are arranged in the test platform 1, the surface of the test platform 1 is provided with two sliding grooves 14, two clamping seats 2 pass through the two sliding grooves 14 and are connected with the screw nuts of the two groups of electric lead screws 13, and the two groups of electric lead screws 13 are electrically connected with the controller 8. The clamping seat 2 can move accurately along the direction of the electric lead screw 13, and the distance between the two clamping seats 2 is adjusted to adapt to plastic samples of different lengths. Meanwhile, the electrical connection between the electric lead screw 13 and the controller 8 realizes the automatic control of the clamping seat 2, improves the efficiency and accuracy of the test, and the test platform 1 is provided with a guide rod which is parallel to the electric lead screw 13. One end of the clamping seat 2 close to the test platform 1 is provided with a guide sliding sleeve which is in sliding fit with the guide rod, so as to ensure the stability and straightness of the clamping seat 2 during movement.

[0023] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A plastic strength detection mechanism, comprising a test platform, a clamping seat and a pressure assembly are arranged on the test platform, the clamping seat is used for clamping a plastic sample to be detected, and the pressure assembly is used for applying an adjustable pressure to the plastic sample, characterized in that: The clamping seat is provided with two, two symmetrically arranged on the test platform, the pressure assembly is arranged in the test platform and located between the two clamping seats, the pressure assembly includes an electric push rod and a pressure sensor, the telescopic rod of the electric push rod is provided with a lower pressing head, the pressure sensor is arranged on the lower pressing head, the telescopic rod of the electric push rod can be elongated upwards to above the test platform, the test platform is provided with a support frame, the support frame is provided with an upper pressing head and a displacement sensor, the displacement sensor is arranged around the upper pressing head, the upper pressing head is coaxial with the lower pressing head, the upper pressing head can move up and down relative to the test platform, the displacement sensor is used for detecting the displacement of the upper pressing head, the sidewall of the test platform is provided with a controller and a display screen, the electric push rod, the pressure sensor, the displacement sensor and the display screen are electrically connected with the controller, the controller receives the electric signals sent by the pressure sensor and the displacement sensor, and sends the processed electric signals to the display screen for display.

2. The plastic strength detection mechanism according to claim 1, wherein: The support frame is provided with an electric lifting rod and an L-shaped plate, the electric lifting rod is fixedly connected with the support frame, and the electric lifting rod is used for driving the L-shaped plate to move up and down, the L-shaped plate is provided with a through hole, one end of the upper pressing head close to the through hole, and the displacement sensor is installed on the sidewall of the L-shaped plate and corresponds to the upper pressing head.

3. The plastic strength detection mechanism according to claim 1, wherein: The clamping seat is a pneumatic clamping jaw, and the clamping jaw is provided with a replaceable clamping die.

4. The plastic strength detection mechanism according to any one of claims 1-3, characterized in that: The test platform is provided with two groups of electric lead screws, and the surface of the test platform is provided with two sliding grooves, the two clamping seats pass through the two sliding grooves and are connected with the screw nuts of the two groups of electric lead screws, and the two groups of electric lead screws are electrically connected with the controller.

5. The plastic strength detection mechanism according to claim 4, wherein: The test platform is provided with a guide rod, the guide rod is parallel to the electric lead screw, one end of the clamping seat close to the test platform is provided with a guide sliding sleeve, and the guide sliding sleeve is in sliding fit with the guide rod.

6. The plastic strength testing mechanism according to any one of claims 1-3, wherein: The telescopic rod of the electric push rod is provided with a threaded hole, the lower pressing head is provided with a threaded column, and the lower pressing head is threadedly connected with the telescopic rod of the electric push rod.

Images