Automatic pen falling device for testing hardness of flexible material

Abstract

The utility model relates to the technical field of flexible material degree testing, and discloses an automatic pen falling device for testing the hardness of a flexible material, which comprises a testing platform and a pen falling mechanism, the pen falling mechanism comprises a base, a stand column and a lifting seat, and universal wheels are arranged at the bottom of the testing platform and used for adjusting the distance between the testing platform and the pen falling mechanism in the horizontal direction. A testing window is formed in the testing platform in a penetrating mode, pressing plates are arranged at the two ends of the testing window of the testing platform, the stand column is vertically installed on the base and has the freedom degree of moving in the length direction of the testing platform, the lifting base is arranged on the side wall, close to the testing platform, of the stand column, and a clamping base is arranged at the end, away from the stand column, of the lifting base. The clamping hole is formed in the clamping base in the vertical direction in a penetrating mode, the clamping block is arranged in the clamping hole, the clamping block moves in the radial direction of the clamping hole, the position and height of pen throwing can be automatically adjusted, the testing efficiency is improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible material hardness testing, and particularly to an automatic pen dropping device for testing the hardness of flexible materials. Background Art

[0002] To test the impact resistance of flexible product films for laboratory gravity testing, the height at which a pen or heavy object falls is used to test the impact resistance of the film. The traditional method is to drop it by hand, which is inaccurate. At the same time, it is necessary to change the dropping height multiple times. The height of the hand-dropping method is limited, and the manual labor intensity is relatively large. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an automatic pen dropping device for testing the hardness of flexible materials, which can automatically adjust the position and height of pen dropping, improve the testing efficiency, and reduce the manual labor intensity.

[0004] The purpose of the utility model is achieved by the following technical solutions: an automatic pen dropping device for testing the hardness of flexible materials, including a test platform and a pen dropping mechanism. The pen dropping mechanism includes a base, a column, and a lifting seat. Universal wheels are installed at the bottom of the test platform for adjusting the distance between the test platform and the pen dropping mechanism in the horizontal direction. A test window is penetrated through the test platform, and pressing plates are arranged at both ends of the test window on the test platform. The column is vertically installed on the base, and the column has the freedom to move along the length direction of the test platform. The lifting seat is arranged on the side wall of the column close to the test platform. A clamping seat is arranged at one end of the lifting seat away from the column. A clamping hole is penetrated through the clamping seat in the vertical direction, and a clamping block is arranged in the clamping hole. The clamping block moves along the radial direction of the clamping hole.

[0005] Further, a driving cavity is arranged in the clamping seat. The driving cavity communicates with the clamping hole. An electromagnet is arranged in the driving cavity. One end of the clamping block is slidably fitted in the driving cavity and is installed with a permanent magnet. When the electromagnet is energized, a magnetic pole with the same magnetism as the permanent magnet is generated. A spring is arranged in the driving cavity. Two ends of the spring are respectively connected to the clamping block and the clamping seat.

[0006] Further, an elastic block is fixed at one end of the clamping block away from the permanent magnet.

[0007] Further, the clamping seat is slidably connected to the lifting seat. A trigger column is fixed at the top of the clamping seat. A cylinder is horizontally installed on the lifting seat. The trigger column is located on the telescopic path of the cylinder.

[0008] Further, a U-shaped opening is formed in the lifting seat. One end of the clamping seat is located within the U-shaped opening. Sliders are fixed to both sides of the clamping seat. A chute is formed in the side wall of the U-shaped opening along the length direction of the lifting seat, and the slider is slidably fitted within the chute.

[0009] Further, a horizontal chute is formed in the top of the base along the length direction of the test platform. A lead screw is rotatably installed within the horizontal chute. A horizontal slider is threadedly sleeved on the lead screw. The horizontal slider is slidably fitted within the horizontal chute. The column is fixedly connected to the horizontal slider. A first motor is installed at one end of the base, and the output shaft of the first motor is connected to the lead screw.

[0010] Further, a vertical chute is formed in the side wall of the column close to the test platform. A vertical lead screw is rotatably arranged within the vertical chute. A vertical slider is threadedly sleeved on the vertical lead screw. The lifting seat is fixedly connected to the vertical slider. A second motor is installed at the top of the column, and the output shaft of the second motor is connected to the vertical lead screw.

[0011] Further, a scale is arranged on the side wall of the column close to the test platform along its height direction.

[0012] The beneficial effects of the present utility model are as follows:

[0013] Lay the flexible product film flat on the test platform, fix the flexible product film through the pressing plate. The test pen is clamped within the clamping hole through the clamping block. The clamping block moves away from the test pen to release the test pen. The test pen falls on the flexible product film under gravity, thereby testing the impact resistance of the flexible product film. Adjust the position of the test pen through the column, thereby changing the pen-down position. Adjust the pen-down height through the up and down movement of the lifting seat, making the test data more comprehensive and complete. Description of the Drawings

[0014] Figure 1 is a schematic diagram of an automatic pen-down device for testing the hardness of flexible materials of the present utility model Figure 1 ;

[0015] Figure 2 is a schematic diagram of an automatic pen-down device for testing the hardness of flexible materials of the present utility model Figure 2 ;

[0016] Figure 3 is a schematic diagram of the internal structure of the clamping seat in an automatic pen-down device for testing the hardness of flexible materials of the present utility model;

[0017] Figure 4 is a schematic diagram of the structure of the clamping seat in an automatic pen-down device for testing the hardness of flexible materials of the present utility model;

[0018] Figure 5 Schematic diagram of an automatic pen - dropping device for testing the hardness of flexible materials of the present utility model Figure 3 ;

[0019] In the figure, 1 - test platform, 2 - base, 3 - column, 4 - lifting seat, 5 - clamping seat, 6 - clamping hole, 7 - clamping block, 8 - driving cavity, 9 - electromagnet, 10 - permanent magnet, 11 - spring, 12 - elastic block, 13 - trigger post, 14 - cylinder, 15 - slider, 16 - horizontal chute, 17 - lead screw, 18 - vertical chute, 19 - first motor, 20 - vertical lead screw, 21 - second motor, 22 - test window, 23 - pressing plate, 24 - down - pressing cylinder, 25 - universal wheel. Specific implementation mode

[0020] The technical solution of the present utility model will be further described in detail below with reference to the accompanying drawings, but the protection scope of the present utility model is not limited to the following description.

[0021] As Figures 1 to 5 shown, an automatic pen - dropping device for testing the hardness of flexible materials includes a test platform 1 and a pen - dropping mechanism. The pen - dropping mechanism includes a base 2, a column 3 and a lifting seat 4. Universal wheels 25 are installed at the bottom of the test platform 1 for adjusting the distance between the test platform 1 and the pen - dropping mechanism in the horizontal direction. A test window 22 is penetrated through the test platform 1. Pressing plates 23 are arranged at both ends of the test window 22 on the test platform 1. The column 3 is vertically installed on the base 2 and has the freedom to move along the length direction of the test platform 1. The lifting seat 4 is arranged on the side wall of the column 3 close to the test platform 1. A clamping seat 5 is arranged at one end of the lifting seat 4 away from the column 3. A clamping hole 6 is penetrated through the clamping seat 5 in the vertical direction. A clamping block 7 is arranged in the clamping hole 6. The clamping block 7 moves along the radial direction of the clamping hole 6. The flexible product film is laid flat on the test platform 1 so that the flexible product film covers the test window 22, and then the flexible product film is fixed by the pressing plates 23. There are two pressing plates 23, which respectively press both ends of the flexible product film. The test pen is clamped in the clamping hole 6 through the clamping block 7. By moving the column 3 or moving the test platform 1, the pen - dropping position is adjusted so that the pen - dropping position is within the range of the test window 22. Then the clamping block 7 moves away from the test pen to loosen the test pen. The test pen falls on the flexible product film under the action of gravity. According to the damage situation of the flexible product film, the impact resistance of the flexible product film is tested. By adjusting the position of the test pen through the column 3, the pen - dropping position is changed. By moving the lifting seat 4 up and down, the pen - dropping height is adjusted, so that the test data is more comprehensive and complete, and the impact force received when the flexible product film is damaged can be obtained to obtain the impact resistance limit of the flexible product film.

[0022] Furthermore, as Figure 1As shown in the figure, each pressing plate 23 is correspondingly provided with a downward pressing cylinder 24. The downward pressing cylinder 24 is vertically installed at the bottom of the test platform 1. The telescopic shaft of the downward pressing cylinder 24 passes through the test platform 1 and is connected to the pressing plate 23. The downward pressing cylinder 24 drives the pressing plate 23 to move up and down, completing the clamping and disassembly of the flexible product film. The operation is simple and fast. An elastic rubber pad is fixed at the bottom of the pressing plate 23. The flexible product film is tightly pressed through the deformation of the elastic rubber pad, and the flexible product film has a better clamping effect.

[0023] Further, a scale is arranged along the height direction of the side wall of the column 3 close to the test platform 1. Through the scale, the writing height can be accurately adjusted to study the influence on the flexible product film under impacts at different heights.

[0024] Further, as Figure 1 and Figure 3 shown, a driving cavity 8 is arranged in the clamping seat 5. The driving cavity 8 communicates with the clamping hole 6. An electromagnet 9 is arranged in the driving cavity 8. One end of the clamping block 7 is slidably fitted in the driving cavity 8 and a permanent magnet 10 is installed. When the electromagnet 9 is energized, a magnetic pole with the same magnetism as the permanent magnet 10 is generated. A spring 11 is arranged in the driving cavity 8. Two ends of the spring 11 are respectively connected to the clamping block 7 and the clamping seat 5. One end of the clamping block 7 away from the permanent magnet 10 is fixed with an elastic block 12. When the spring 11 is in a normal state, the distance between the clamping block 7 and the inner wall of the clamping hole 6 is greater than the diameter of the test pen. The test pen is inserted into the clamping hole 6 from the bottom, and then the electromagnet 9 is energized. The electromagnet 9 repels the permanent magnet 10 to drive the clamping block 7 to move close to the test pen, so that the elastic block 12 abuts against the test pen, thus completing the clamping operation of the test pen. Then the electromagnet 9 is disconnected, and under the reaction force of the spring 11, the clamping block 7 drives the elastic block 12 to reset, so that the test pen freely falls on the flexible product film to complete the test operation. Repeat the above operation by changing the test height.

[0025] Further, as Figures 1 to 4 shown, the clamping seat 5 is slidably connected to the lifting seat 4. A trigger post 13 is fixed at the top of the clamping seat 5. A cylinder 14 is horizontally installed on the lifting seat 4. The trigger post 13 is located on the telescopic path of the cylinder 14. A U-shaped opening is formed in the lifting seat 4. One end of the clamping seat 5 is located in the U-shaped opening. Sliders 15 are fixed on both sides of the clamping seat 5. Slide grooves are formed in the side walls of the U-shaped opening along the length direction of the lifting seat 4. The sliders 15 are slidably fitted in the slide grooves. It can also make the test pen perform a parabolic motion to test the influence of the writing state on the flexible product film. After the test pen is clamped, when the electromagnet 9 is powered off, the cylinder 14 extends to hit the trigger post 13, so that the clamping seat 5 horizontally slides on the lifting seat 4, thereby enabling the test pen to receive a horizontal thrust, and making a parabolic motion in cooperation with its own gravity, so that the test pen lands on the flexible horizontal film in a parabolic motion. Compared with the free motion at the same height, the influence of different motion states on the flexible product film is judged.

[0026] Further, as Figure 1 , Figure 2 and Figure 5 shown, a horizontal sliding groove 16 is provided at the top of the base 2 along the length direction of the test platform 1. A lead screw 17 is rotatably installed in the horizontal sliding groove 16. A horizontal slider is threadedly sleeved on the lead screw 17. The horizontal slider is slidably fitted in the horizontal sliding groove 16. The column 3 is fixedly connected to the horizontal slider. A first motor 19 is installed at one end of the base 2. The output shaft of the first motor 19 is connected to the lead screw 17. The first motor 19 drives the lead screw 17 to rotate, so that the horizontal slider makes a linear motion along the axial direction of the lead screw 17, thereby driving the column 3 to move on the base 2, so as to change the pen-down position and judge the influence of different pen-down positions on the flexible product film; a vertical sliding groove 18 is provided on the side wall of the column 3 close to the test platform 1. A vertical lead screw 20 is rotatably arranged in the vertical sliding groove 18. A vertical slider is threadedly sleeved on the vertical lead screw 20. The lifting seat 4 is fixedly connected to the vertical slider. A second motor 21 is installed at the top of the column 3. The output shaft of the second motor 21 is connected to the vertical lead screw 20. The second motor 21 drives the vertical lead screw 20 to rotate, so that the vertical slider moves along the axial direction of the vertical lead screw 20 to drive the lifting seat 4 to move up and down to adjust the pen-down height and test the impact resistance of the flexible product film.

Claims

1. An automatic pen dropper for testing the hardness of flexible materials, characterized in that: The invention comprises a test platform (1) and a pen-dropping mechanism, wherein the pen-dropping mechanism comprises a base (2), a column (3) and a lifting seat (4), a universal wheel (25) is installed at the bottom of the test platform (1) for adjusting the distance between the test platform (1) and the pen-dropping mechanism in the horizontal direction, a test window (22) is provided through the test platform (1), and a pressure plate (23) is provided at both ends of the test window (22), and the column (3) is vertically installed on the base (2). 2), the column (3) has the freedom to move along the length direction of the test platform (1), the lifting seat (4) is arranged on the side wall of the column (3) close to the test platform (1), and a clamping seat (5) is arranged at one end of the lifting seat (4) away from the column (3), and a clamping hole (6) is opened in the clamping seat (5) along the vertical direction, and a clamping block (7) is arranged in the clamping hole (6), and the clamping block (7) moves along the radial direction of the clamping hole (6).

2. The automatic pen dropper for testing the hardness of a flexible material according to claim 1, characterized in that: The clamping seat (5) is provided with a driving cavity (8), the driving cavity (8) is connected to the clamping hole (6), an electromagnet (9) is provided in the driving cavity (8), one end of the clamping block (7) is slidably adapted in the driving cavity (8) and is installed with a permanent magnet (10), the electromagnet (9) generates a magnetic pole with the same magnetic property as the permanent magnet (10) when energized, and a spring (11) is provided in the driving cavity (8), the two ends of the spring (11) are respectively connected to the clamping block (7) and the clamping seat (5).

3. The automatic pen dropper for testing the hardness of a flexible material according to claim 2, characterized in that: An elastic block (12) is fixed to one end of the clamping block (7) away from the permanent magnet (10).

4. The automatic pen dropper for testing the hardness of a flexible material according to claim 1, characterized in that: The clamping seat (5) is slidably connected to the lifting seat (4); a trigger column (13) is fixed on the top of the clamping seat (5); a cylinder (14) is horizontally installed on the lifting seat (4); and the trigger column (13) is located on the telescopic path of the cylinder (14).

5. The automatic pen dropper for testing the hardness of a flexible material according to claim 4, characterized in that: The lifting seat (4) is provided with a U-shaped opening, one end of the clamping seat (5) is located in the U-shaped opening, sliders (15) are fixed on both sides of the clamping seat (5), and a sliding groove is provided on the side wall of the U-shaped opening along the length direction of the lifting seat (4), and the slider (15) is slidably adapted in the sliding groove.

6. The automatic pen dropper for testing the hardness of a flexible material according to claim 1, characterized in that: A horizontal slide groove (16) is provided on the top of the base (2) along the length direction of the test platform (1), a lead screw (17) is rotatably installed in the horizontal slide groove (16), a horizontal slider is threadedly mounted on the lead screw (17), and the horizontal slider is slidably adapted in the horizontal slide groove (16), the column (3) is fixedly connected to the horizontal slider, a first motor (19) is installed at one end of the base (2), and the output shaft of the first motor (19) is connected to the lead screw (17).

7. The automatic pen dropper for testing the hardness of a flexible material according to claim 1, characterized in that: The column (3) is provided with a vertical slide groove (18) near the side wall of the test platform (1), a vertical lead screw (20) is rotatably arranged in the vertical slide groove (18), a vertical slider is threadedly mounted on the vertical lead screw (20), the lifting seat (4) is fixedly connected to the vertical slider, a second motor (21) is installed on the top of the column (3), and the output shaft of the second motor (21) is connected to the vertical lead screw (20).

8. The automatic pen dropper for testing the hardness of a flexible material according to claim 7, characterized in that: The side wall of the column (3) close to the test platform (1) is provided with a scale along its own height direction.

9. The automatic pen dropper for testing the hardness of a flexible material according to claim 1, characterized in that: Each of the pressing plates (23) is correspondingly provided with a pressing cylinder (24), and the pressing cylinder (24) is vertically installed at the bottom of the test platform (1), and the telescopic shaft of the pressing cylinder (24) passes through the test platform (1) to connect the pressing plates (23).

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