PET (Polyethylene Terephthalate) protective film testing equipment

Abstract

The utility model relates to the technical field of protective film testing, in particular to PET (polyethylene terephthalate) protective film testing equipment. Comprising a rack, a test table, a sliding table, a pressure adjusting mechanism, a portal frame, a test mechanism, a driving mechanism and two groups of clamping pieces, the two groups of clamping pieces are respectively arranged at two ends of the test board; the pressure adjusting mechanism comprises a sleeve, a spring, a hydraulic cylinder b and a push block; the testing mechanism is slidably mounted on the portal frame, and the driving mechanism is mounted on the portal frame and used for driving the testing mechanism to move. According to the utility model, the damage degree of the film body under different pressure states can be tested, the material of the test piece can be quickly and conveniently adjusted, and the test is more comprehensive.

Description

Technical Field

[0001] The utility model relates to the technical field of protective film testing, in particular to a PET protective film testing device. Background Art

[0002] PET protective film material is transparent and colorless, and the surface has been hardened. Generally, the surface hardening value of PET protective film material is between 3H-4H depending on the origin. The better the surface hardening, the stronger its wear resistance. Light transmittance is also the main property of PET protective film material, and the general light transmittance is above 90%.

[0003] A Chinese patent with authorization announcement number CN212432765U discloses a protective film wear resistance testing mechanism, including a base and a protective film, a mounting groove is provided at the lower inner part of the base, and a slide is installed inside the mounting groove, a mounting plate is provided on the left side of the slide, and a first cylinder is installed above the mounting plate, a mounting box is provided below the first cylinder, a sensor is connected to the right side of the mounting groove, and a display screen is installed on the right side of the sensor, the mounting box is penetrated by a first bolt, and the first bolt penetrates the clamping plate, a fixing plate is provided on the upper surface of the base, a second cylinder is provided on one side of the mounting plate, and a protective film is placed on the base.

[0004] The above-mentioned patents still have the following technical defects: 1. Manual disassembly and assembly are required when replacing different experimental tools, which is a cumbersome operation; 2. During the test process, it is impossible to simulate the effects of different pressures on the membrane. Utility Model Content

[0005] The utility model aims to provide a PET protective film testing device in view of the problems existing in the background technology.

[0006] The technical solution of the utility model is a PET protective film testing device, comprising:

[0007] A frame, a test bench and a slide, the slide is slidably mounted on the frame, a hydraulic cylinder a for driving the slide to move is mounted on the frame, the test bench is arranged above the slide, a plurality of guide rods are vertically connected to the test bench, and the bottom ends of the guide rods are movably penetrated and connected to the limit block;

[0008] Two sets of clamping parts, the two sets of clamping parts are respectively installed at two ends of the test bench;

[0009] The pressure regulating mechanism includes a sleeve, a spring, a hydraulic cylinder b and a push block. The sleeve is arranged at the upper end of the slide, the bottom of the spring is arranged on the inner side of the sleeve, and its upper end is tightly against the test bench. The push block is movably arranged on the inner side of the sleeve. The hydraulic cylinder b is installed below the slide and its output shaft is connected to the push block.

[0010] A gantry, a testing mechanism and a driving mechanism, wherein the testing mechanism is slidably mounted on the gantry, and the driving mechanism is mounted on the gantry and is used to drive the testing mechanism to move.

[0011] Preferably, the testing mechanism includes a turntable, a movable mounting seat, a servo motor b and multiple groups of test pieces. The movable mounting seat is slidably mounted on the gantry, the servo motor b is mounted on the movable mounting seat, the turntable is mounted on the output shaft of the servo motor b, and the multiple groups of test pieces are mounted on the circumferential side of the turntable along a circular array.

[0012] Preferably, the test piece includes a mounting head and a film-scratching piece, the mounting head is provided with a mounting groove, the end of the film-scratching piece is movably arranged inside the mounting groove, and a pressure sensor is also installed inside the mounting groove.

[0013] Preferably, the clamping member includes a mounting frame, a plurality of adjusting bolts and a plurality of clamping pads, the mounting frame is arranged at the end of the test bench, the plurality of adjusting bolts are all threadedly connected to the mounting frame, and the plurality of clamping pads are respectively installed at the bottom ends of the plurality of adjusting bolts.

[0014] Preferably, the driving mechanism includes a servo motor a and a threaded rod, the servo motor a is mounted on the gantry, the threaded rod is connected to the output shaft of the servo motor a, and the movable mounting seat is threadedly connected to the threaded rod.

[0015] Preferably, a camera is installed on the gantry.

[0016] Compared with the prior art, the utility model has the following beneficial technical effects:

[0017] 1. The push block is driven to move by the hydraulic cylinder b to adjust the degree of compression of the spring. The greater the degree of compression of the spring, the greater the pressure of the spring on the test bench. When performing the wear resistance test, the greater the pressure of the test mechanism on the membrane, so that the degree of damage to the membrane under different force states can be measured.

[0018] 2. The servo motor b drives multiple test pieces to rotate, and the materials of the multiple film-cutting pieces are different, so that the device can quickly cut film-cutting pieces of different materials to test the film body, and the test is more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 and Figure 2 All of them are structural schematic diagrams of the present utility model.

[0020] Figure 3 It is a structural schematic diagram of the test bench, slide table and pressure regulating mechanism in the utility model.

[0021] Figure 4 It is a structural schematic diagram of the test piece in the utility model.

[0022] Figure numerals: 1. frame; 2. gantry; 3. test bench; 4. mounting frame; 5. adjusting bolt; 6. clamping pad; 7. camera; 8. turntable; 9. movable mounting seat; 10. sleeve; 11. hydraulic cylinder a; 12. slide; 13. mounting head; 131. mounting groove; 14. film scraping part; 151. servo motor a; 152. threaded rod; 16. servo motor b; 17. guide rod; 171. limit block; 18. spring; 19. hydraulic cylinder b; 20. push block; 21. pressure sensor; 22. controller. DETAILED DESCRIPTION

[0023] Embodiment 1

[0024] like Figure 1-Figure 3 As shown, a PET protective film testing device proposed in this embodiment includes a frame 1, a test table 3, a slide table 12, a pressure adjustment mechanism, a gantry 2, a test mechanism, a driving mechanism and two sets of clamping parts.

[0025] The slide 12 is slidably mounted on the frame 1, and a hydraulic cylinder a11 is mounted on the frame 1 for driving the slide 12 to move. The test bench 3 is arranged above the slide 12, and a plurality of guide rods 17 are vertically connected to the test bench 3. The bottom ends of the guide rods 17 are movable through and connected to the limit block 171. During the test, the test bench 3 is driven back and forth by the hydraulic cylinder a11, so that the same position on the membrane can be tested repeatedly to test the scratch resistance of the membrane.

[0026] Two groups of clamping parts are respectively installed at the two ends of the test bench 3, and the clamping parts include a mounting frame 4, a plurality of adjusting bolts 5 and a plurality of clamping pads 6. The mounting frame 4 is arranged at the end of the test bench 3, and the plurality of adjusting bolts 5 are all threadedly connected to the mounting frame 4. The plurality of clamping pads 6 are respectively installed at the bottom ends of the plurality of adjusting bolts 5. The membrane body to be tested is placed flat on the test bench 3, and the adjusting bolts 5 are rotated to drive the clamping pads 6 to press down on the membrane body, thereby fixing the membrane body.

[0027] The pressure regulating mechanism includes a sleeve 10, a spring 18, a hydraulic cylinder b19 and a push block 20. The sleeve 10 is arranged at the upper end of the slide 12. The bottom of the spring 18 is arranged on the inner side of the sleeve 10, and its upper end is tightly pressed against the test bench 3. The push block 20 is movably arranged on the inner side of the sleeve 10. The hydraulic cylinder b19 is installed below the slide 12 and its output shaft is connected to the push block 20.

[0028] A camera 7 is installed on the gantry 2, and the entire test process can be recorded by the installed camera 7; the test mechanism is slidably installed on the gantry 2, and the driving mechanism is installed on the gantry 2 and is used to drive the test mechanism to move. The driving mechanism includes a servo motor a151 and a threaded rod 152, the servo motor a151 is installed on the gantry 2, the threaded rod 152 is connected to the output shaft of the servo motor a151, and the movable mounting seat 9 is threadedly connected to the threaded rod 152.

[0029] In this embodiment, the push block 20 can be driven to move by the hydraulic cylinder b19, thereby adjusting the degree of compression of the spring 18. The greater the degree of compression of the spring 18, the greater the pressure of the spring 18 on the test bench 3. When performing the wear resistance test, the greater the pressure of the test mechanism on the membrane body, thereby being able to measure the degree of damage to the membrane body under different force states.

[0030] Embodiment 2

[0031] like Figure 1 , Figure 2 as well as Figure 4 As shown, a PET protective film testing device proposed in this embodiment, compared with the first embodiment, in this embodiment, the testing mechanism includes a turntable 8, a movable mounting seat 9, a servo motor b16 and multiple groups of test pieces. The movable mounting seat 9 is slidably installed on the gantry 2, the servo motor b16 is installed on the movable mounting seat 9, the turntable 8 is installed on the output shaft of the servo motor b16, and the multiple groups of test pieces are installed on the circumferential side of the turntable 8 along a circular array. The turntable 8 can be driven to rotate by the arranged servo motor b16, so that different test pieces can be quickly replaced for testing, and the test is more comprehensive.

[0032] The test piece includes a mounting head 13 and a film-scratching piece 14. The mounting head 13 is provided with a mounting groove 131. The end of the film-scratching piece 14 is movably arranged on the inner side of the mounting groove 131. A pressure sensor 21 is also installed on the inner side of the mounting groove 131. Multiple test pieces 14 can be provided with materials of different materials, so that the influence of different materials on the film body can be measured, and the pressure sensor 21 can detect the pressure and pressure changes applied by the test piece on the film body.

[0033] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A PET protective film testing device, characterized in that, include: A frame (1), a test bench (3) and a slide (12), wherein the slide (12) is slidably mounted on the frame (1), a hydraulic cylinder a (11) for driving the slide (12) to move is mounted on the frame (1), the test bench (3) is arranged above the slide (12), a plurality of guide rods (17) are vertically connected to the test bench (3), and the bottom ends of the guide rods (17) are movably penetrated and connected to limit blocks (171); Two sets of clamping parts, the two sets of clamping parts are respectively installed at two ends of the test bench (3); A pressure regulating mechanism, the pressure regulating mechanism comprising a sleeve (10), a spring (18), a hydraulic cylinder b (19) and a push block (20), the sleeve (10) being arranged at the upper end of the slide table (12), the bottom of the spring (18) being arranged at the inner side of the sleeve (10), the upper end of which is tightly pressed against the test table (3), the push block (20) being movably arranged at the inner side of the sleeve (10), the hydraulic cylinder b (19) being installed at the lower side of the slide table (12) and the output shaft of which is connected to the push block (20); A gantry (2), a testing mechanism and a driving mechanism, wherein the testing mechanism is slidably mounted on the gantry (2), and the driving mechanism is mounted on the gantry (2) and is used to drive the testing mechanism to move.

2. A PET protective film testing device according to claim 1, characterized in that: The testing mechanism comprises a turntable (8), a movable mounting seat (9), a servo motor b (16) and a plurality of test pieces, wherein the movable mounting seat (9) is slidably mounted on a gantry (2), the servo motor b (16) is mounted on the movable mounting seat (9), the turntable (8) is mounted on an output shaft of the servo motor b (16), and the plurality of test pieces are mounted on the circumference of the turntable (8) along a circular array.

3. A PET protective film testing device according to claim 2, characterized in that: The test piece comprises a mounting head (13) and a film-scratching piece (14); a mounting groove (131) is provided on the mounting head (13); an end of the film-scratching piece (14) is movably arranged inside the mounting groove (131); and a pressure sensor (21) is also installed inside the mounting groove (131).

4. A PET protective film testing device according to claim 1, characterized in that: The clamping member comprises a mounting frame (4), a plurality of adjusting bolts (5) and a plurality of clamping pads (6); the mounting frame (4) is arranged at the end of the test bench (3); the plurality of adjusting bolts (5) are all threadedly connected to the mounting frame (4); and the plurality of clamping pads (6) are respectively mounted on the bottom ends of the plurality of adjusting bolts (5).

5. A PET protective film testing device according to claim 1, characterized in that: The driving mechanism comprises a servo motor a (151) and a threaded rod (152); the servo motor a (151) is mounted on the gantry (2); the threaded rod (152) is connected to the output shaft of the servo motor a (151); and the movable mounting seat (9) is threadedly connected to the threaded rod (152).

6. A PET protective film testing device according to claim 1, characterized in that: A camera (7) is installed on the gantry (2).

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