Rubbing test device for polyethylene agricultural film

Abstract

The invention discloses a polyethylene agricultural film rubbing test device, and belongs to the technical field of agricultural film detection, the polyethylene agricultural film rubbing test device comprises a first support plate, a plurality of groups of support rods are mounted on the first support plate, a second support plate is mounted at the upper ends of the support rods, and a fixing assembly and a regulation assembly are mounted on the upper wall of the second support plate; the fixing assembly is fixedly connected with the upper wall of the second supporting plate, the upper end of the regulation and control assembly is movably connected with the second supporting plate, the lower end of the regulation and control assembly is movably connected with the first supporting plate, a driving assembly is installed on the side wall of the regulation and control assembly, and the upper end of the driving assembly is arranged above the regulation and control assembly; when the first regulation and control plate moves up and down, the height of the agricultural film at the position is switched between the height higher than or lower than the height of the agricultural film on the fixing assembly through cooperation of the first spring, and rubbing treatment of the agricultural film is achieved; and by adjusting the distance between the fixing assembly and the regulating assembly, rubbing tests with different distances can be tested.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural film detection, and in particular relates to a polyethylene agricultural film rubbing test device. Background Art

[0002] The rubbing tester is suitable for the rubbing resistance test of various flexible films, composite films, coating films and other materials. It can simulate the rubbing, folding and compression damage of the film during production, processing and transportation. When the existing rubbing test device is used to test the agricultural film, first use double-sided adhesive to stick the two ends of the agricultural film on the outer walls of the two test plates, then fix the clamps on the two test plates and fix the agricultural film, and then the agricultural film can be rubbed.

[0003] However, during this process, it is not easy to stick the agricultural film on the two test plates, and a clamp needs to be used to fix the agricultural film after sticking, which results in the defect that the agricultural film is not easy to fix. Moreover, the existing device basically fixes the two ends of the agricultural film and cannot be adjusted during the test, so the rubbing resistance of the agricultural film at different spacings cannot be tested. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a polyethylene agricultural film rubbing test device, which at least partially solves the problems raised in the above background technology.

[0005] The technical solution adopted by the present invention is as follows: a polyethylene agricultural film rubbing test device, comprising a first support plate for supporting and fixing, a plurality of groups of support rods for installation and connection are installed on the first support plate, a second support plate is installed on the upper end of the support rod, a fixing component and a regulating component are installed on the second support plate, the fixing component is fixedly connected to the second support plate, the upper end of the regulating component is movably connected to the second support plate, the lower end of the regulating component is movably connected to the first support plate, a driving component is installed on the side wall of the regulating component, the upper end of the driving component is arranged above the regulating component, and the driving component is movably connected to the second support plate.

[0006] Furthermore, a first slot hole is provided in the first support plate, and third limiting grooves are provided on two opposite side walls of the first slot hole; a second slot hole is provided in the second support plate, and the second slot hole is arranged directly above the first slot hole, and second limiting grooves are provided on two opposite side walls of the second slot hole.

[0007] Preferably, the regulating component includes a protective shell, which is a hollow structure with an open upper end, the upper end of the protective shell is movably clamped in the second limit groove, the lower end of the protective shell is movably clamped in the third limit groove, the protective shell is provided with a fourth limit groove on two opposite inner side walls, a pressing plate is movably installed in the protective shell, the pressing plate is movably clamped in the protective shell through the fourth limit groove, a first baffle is installed on the opposite side walls of the upper end of the pressing plate, a second spring is installed on the upper wall of the first baffle, a first regulating plate is installed on the upper end of the second spring, and the first regulating plate is arranged at the upper end of the pressing plate.

[0008] Wherein, the upper wall of the pressing plate is provided with a first placement groove, the lower end of the first regulating plate is movably clamped in the first placement groove, the inner bottom wall of the protective shell is provided with a first spring, and the bottom wall of the pressing plate arranged in the protective shell is connected to the upper end of the first spring; The first regulating plate is moved upward along the first placement groove by external force, and the second spring is in a stretched state. Then one end of the agricultural film to be tested is placed in the first placement groove. The first regulating plate is released, and the second spring drives the first regulating plate to move down into the first placement groove. The lower end of the first regulating plate and the first placement groove clamp and fix one end of the agricultural film.

[0009] Wherein, the driving assembly includes a connecting plate, the lower end of the connecting plate is connected to the side wall of the protective shell, the upper end of the connecting plate is equipped with a mounting seat, a variable speed motor is installed on the mounting seat, the connecting plate supports and fixes the mounting seat, and the mounting seat supports and fixes the variable speed motor, a driving shaft is movably installed on the upper end of the connecting plate, one end of the driving shaft is connected to the output shaft end of the variable speed motor, and a driving plate is installed on the other end of the driving shaft, the driving plate is movably connected to the upper wall of the first regulating plate, and the outer side wall of the driving plate is provided with a ball, when the driving plate contacts the upper wall of the first regulating plate, the friction force can be reduced; The variable speed motor drives the drive shaft to rotate, and the drive shaft drives the drive plate to rotate. The drive plate drives the first regulating plate while rotating. When the first regulating plate moves downward, it can push the pressing plate to move along the fourth limiting groove toward the direction close to the bottom wall of the protective shell. The first spring is in a compressed state. The height of the agricultural film at this position is lower than the height of the agricultural film on the fixed component. When the drive plate cancels the drive to the first regulating plate, the pressing plate rises under the action of the first spring, pushing the first regulating plate to rise, so that the upper wall of the first regulating plate is always in contact with the drive plate. When it moves to the highest position, the height of the agricultural film at this position is higher than the height of the agricultural film on the fixed component.

[0010] As a preferred embodiment of the present invention, limiting plates are installed on the opposite side walls of the connecting plate, a first limiting groove is provided on the upper wall of the second supporting plate, and the lower end of the limiting plate is movably clamped in the first limiting groove.

[0011] Among them, the fixing component includes a fixing plate, which is arranged on the upper wall of the second support plate, and the second support plate supports and fixes the fixing plate. The fixing component also includes a third spring, which is respectively arranged on both sides of the fixing plate. The upper end of the third spring is installed with a second regulating plate, and the second regulating plate is arranged at the upper end of the fixing plate.

[0012] Wherein, a second placement groove is provided on the upper wall of the fixing plate, and the lower end of the second regulating plate is movably clamped in the second placement groove; The second regulating plate is moved upward along the second placement groove by external force, and the third spring is in a stretched state. Then the other end of the agricultural film to be tested is placed in the second placement groove. The second regulating plate is released, and the third spring drives the second regulating plate to move down into the second placement groove. The lower end of the second regulating plate and the second placement groove clamp and fix the other end of the agricultural film.

[0013] Preferably, a mounting plate is provided at one end of the first support plate away from the fixing assembly, a hydraulic rod is mounted on the mounting plate, and a movable end of the hydraulic rod is connected to the side wall of the protective shell; The hydraulic rod drives the protective shell to move along the second limit groove and the third limit groove. The protective shell drives the regulating component and the connecting plate to move. The connecting plate drives the driving component to move. The distance between the fixed component and the regulating component can be adjusted, which is used to test the rubbing test with different distances.

[0014] Furthermore, the bottom wall of the first regulating plate, the bottom wall of the second regulating plate, the inner bottom wall of the first placement groove and the inner bottom wall of the second placement groove are all provided with a rubber layer, so as to facilitate clamping and fixing the agricultural film.

[0015] The beneficial effects of the present invention are as follows: When the first regulating plate moves up and down, it can push the pressing plate to move up and down along the fourth limiting groove. Through the cooperation of the first spring, the height of the agricultural film at this position is switched between a height higher than the agricultural film on the fixed component and a height lower than the agricultural film on the fixed component, thereby realizing the kneading treatment of the agricultural film. The protective shell drives the regulating component and the connecting plate to move, and the connecting plate drives the driving component to move, so as to adjust the distance between the fixed component and the regulating component, and is used for testing rubbing tests with different distances. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0017] Figure 1 This is a schematic diagram of the structure of a polyethylene agricultural film rubbing test device proposed by the present invention; Figure 2A three-dimensional diagram of a polyethylene agricultural film rubbing test device proposed by the present invention; Figure 3 is a schematic diagram of the structure of the drive component; Figure 4 A cross-sectional view of a polyethylene agricultural film rubbing test device proposed by the present invention; Figure 5 Schematic diagram of the structure of the regulatory component.

[0018] In the accompanying drawings: 1. first support plate, 2. support rod, 3. second support plate, 4. fixing assembly, 5. regulating assembly, 6. driving assembly, 7. first slot, 8. third limiting slot, 9. second slot, 10. second limiting slot, 11. protective shell, 12. fourth limiting slot, 13. pressing plate, 14. first baffle plate, 15. second spring, 16. first regulating plate, 17. first placement slot, 18. first spring, 19. connecting plate, 20. mounting seat, 21. variable speed motor, 22. driving shaft, 23. driving plate, 24. limiting plate, 25. first limiting slot, 26. fixing plate, 27. third spring, 28. second regulating plate, 29. second placement slot, 30. mounting plate, 31. hydraulic rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0021] like Figure 1-Figure 5As shown, a polyethylene agricultural film rubbing test device includes a first support plate 1 for supporting and fixing, a plurality of support rods 2 for installation and connection are installed on the first support plate 1, a second support plate 3 is installed on the upper end of the support rod 2, a fixing component 4 and a regulating component 5 are installed on the upper wall of the second support plate 3, the fixing component 4 is fixedly connected to the upper wall of the second support plate 3, the upper end of the regulating component 5 is movably connected to the second support plate 3, the lower end of the regulating component 5 is movably connected to the first support plate 1, a driving component 6 is installed on the side wall of the regulating component 5, the upper end of the driving component 6 is arranged above the regulating component 5, and the driving component 6 is movably connected to the second support plate 3.

[0022] A first slot hole 7 is provided in the first support plate 1, and third limiting slots 8 are provided on two opposite side walls of the first slot hole 7. A second slot hole 9 is provided in the second support plate 3, and the second slot hole 9 is arranged directly above the first slot hole 7, and second limiting slots 10 are provided on two opposite side walls of the second slot hole 9.

[0023] The regulating component 5 includes a protective shell 11, which is a hollow structure with an open upper end. The upper end of the protective shell 11 is movably clamped in the second limit groove 10, and the lower end of the protective shell 11 is movably clamped in the third limit groove 8. The protective shell 11 is provided with a fourth limit groove 12 on two opposite inner side walls. A pressing plate 13 is movably installed in the protective shell 11, and the pressing plate 13 is movably clamped in the protective shell 11 through the fourth limit groove 12. A first baffle 14 is installed on the opposite side walls of the upper end of the pressing plate 13, and a second spring 15 is installed on the upper wall of the first baffle 14. A first regulating plate 16 is installed on the upper end of the second spring 15, and the first regulating plate 16 is arranged at the upper end of the pressing plate 13.

[0024] A first placement groove 17 is provided on the upper wall of the pressing plate 13, and the lower end of the first regulating plate 16 is movably clamped in the first placement groove 17. A first spring 18 is provided on the inner bottom wall of the protective shell 11, and the bottom wall of the pressing plate 13 in the protective shell 11 is connected to the upper end of the first spring 18; In this embodiment, the first regulating plate 16 is moved upward along the first placement groove 17 by external force, and the second spring 15 is in a stretched state. Then, one end of the agricultural film to be tested is placed in the first placement groove 17, and the first regulating plate 16 is released. The second spring 15 drives the first regulating plate 16 to move down into the first placement groove 17, and the lower end of the first regulating plate 16 and the first placement groove 17 clamp and fix one end of the agricultural film.

[0025] The driving assembly 6 includes a connecting plate 19, the lower end of the connecting plate 19 is connected to the side wall of the protective shell 11, the upper end of the connecting plate 19 is installed with a mounting seat 20, and a variable speed motor 21 is installed on the mounting seat 20. The connecting plate 19 supports and fixes the mounting seat 20, and the mounting seat 20 supports and fixes the variable speed motor 21. A driving shaft 22 is movably installed on the upper end of the connecting plate 19, one end of the driving shaft 22 is connected to the output shaft end of the variable speed motor 21, and a driving plate 23 is installed on the other end of the driving shaft 22. The driving plate 23 is movably connected to the upper wall of the first regulating plate 16, and the outer wall of the driving plate 23 is provided with a ball, which can reduce friction when the driving plate 23 contacts the upper wall of the first regulating plate 16; It should be noted that the variable speed motor 21 drives the drive shaft 22 to rotate, and the drive shaft 22 drives the drive plate 23 to rotate. The drive plate 23 drives the first regulating plate 16 when rotating. When the first regulating plate 16 moves downward, it can push the pressing plate 13 to move along the fourth limiting groove 12 toward the inner bottom wall of the protective shell 11. The first spring 18 is in a compressed state. The height of the agricultural film at this position is lower than the height of the agricultural film on the fixed component 4. When the drive plate 23 cancels the drive to the first regulating plate 16, under the action of the first spring 18, the pressing plate 13 rises, pushing the first regulating plate 16 to rise, so that the upper wall of the first regulating plate 16 is always in contact with the drive plate 23. When it moves to the highest position, the height of the agricultural film at this position is higher than the height of the agricultural film on the fixed component 4.

[0026] Limiting plates 24 are installed on the two opposite side walls of the connecting plate 19 . A first limiting groove 25 is provided on the upper wall of the second supporting plate 3 . The lower end of the limiting plate 24 is movably engaged in the first limiting groove 25 .

[0027] The fixing assembly 4 includes a fixing plate 26, which is arranged on the upper wall of the second support plate 3, and the second support plate 3 supports and fixes the fixing plate 26. The fixing assembly 4 also includes a third spring 27, and the third springs 27 are respectively arranged on both sides of the fixing plate 26. The upper end of the third spring 27 is installed with a second regulating plate 28, and the second regulating plate 28 is arranged at the upper end of the fixing plate 26.

[0028] A second placement groove 29 is provided on the upper wall of the fixing plate 26, and the lower end of the second regulating plate 28 is movably engaged in the second placement groove 29; In this embodiment, the second regulating plate 28 is moved upward along the second placement groove 29 by external force, and the third spring 27 is in a stretched state. Then the other end of the agricultural film to be tested is placed in the second placement groove 29, and the second regulating plate 28 is released. The third spring 27 drives the second regulating plate 28 to move down into the second placement groove 29, and the lower end of the second regulating plate 28 and the second placement groove 29 clamp and fix the other end of the agricultural film.

[0029] A mounting plate 30 is provided at one end of the first support plate 1 away from the fixing assembly 4, a hydraulic rod 31 is mounted on the mounting plate 30, and a movable end of the hydraulic rod 31 is connected to the side wall of the protective shell 11; In this embodiment, the hydraulic rod 31 drives the protective shell 11 to move along the second limiting groove 10 and the third limiting groove 8, the protective shell 11 drives the regulating component 5 and the connecting plate 19 to move, and the connecting plate 19 drives the driving component 6 to move, which can adjust the distance between the fixed component 4 and the regulating component 5, and is used to test the rubbing test with different distances.

[0030] The bottom wall of the first regulating plate 16, the bottom wall of the second regulating plate 28, the inner bottom wall of the first placement groove 17 and the inner bottom wall of the second placement groove 29 are all provided with a rubber layer to facilitate clamping and fixing the agricultural film.

[0031] The specific usage is as follows: The hydraulic rod 31 drives the protective shell 11 to move along the second limiting groove 10 and the third limiting groove 8, and the protective shell 11 drives the regulating component 5 and the connecting plate 19 to move, and the connecting plate 19 drives the driving component 6 to move, so as to adjust the spacing between the fixing component 4 and the regulating component 5, and is used for testing the rubbing test with different spacings; After the position is adjusted, the first regulating plate 16 is moved up along the first placement groove 17 by external force, the second spring 15 is in a stretched state, and then one end of the agricultural film to be tested is placed in the first placement groove 17, the first regulating plate 16 is released, and the second spring 15 drives the first regulating plate 16 to move down into the first placement groove 17, and the lower end of the first regulating plate 16 and the first placement groove 17 clamp and fix one end of the agricultural film; the second regulating plate 28 is moved up along the second placement groove 29 by external force, the third spring 27 is in a stretched state, and then the other end of the agricultural film to be tested is placed in the second placement groove 29, the second regulating plate 28 is released, and the third spring 27 drives the second regulating plate 28 to move down into the second placement groove 29, and the lower end of the second regulating plate 28 and the second placement groove 29 clamp and fix the other end of the agricultural film; Then the variable speed motor 21 works to drive the drive shaft 22 to rotate, and the drive shaft 22 drives the drive plate 23 to rotate. The drive plate 23 drives the first regulating plate 16 during rotation. When the first regulating plate 16 moves downward, it can push the pressing plate 13 to move along the fourth limiting groove 12 toward the inner bottom wall of the protective shell 11. The first spring 18 is in a compressed state. The height of the agricultural film at this position is lower than the height of the agricultural film on the fixed component 4. When the drive plate 23 cancels the drive to the first regulating plate 16, under the action of the first spring 18, the pressing plate 13 rises, pushing the first regulating plate 16 to rise, so that the upper wall of the first regulating plate 16 is always in contact with the drive plate 23. When it moves to the highest position, the height of the agricultural film at this position is higher than the height of the agricultural film on the fixed component 4. The regulating component 5 regulates the height of the agricultural film to switch between a height higher than the agricultural film on the fixing component 4 and a height lower than the agricultural film on the fixing component 4, thereby achieving a rubbing treatment of the agricultural film.

[0032] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents. In short, if those skilled in the art are inspired by them and design structural modes and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they shall all fall within the scope of protection of the present invention.

Claims

1. A polyethylene agricultural film rubbing test device, characterized in that: include: A first support plate (1) for supporting and fixing, wherein a plurality of groups of support rods (2) for installation and connection are installed on the first support plate (1), a second support plate (3) is installed on the upper end of the support rod (2), a fixing component (4) and a regulating component (5) are installed on the second support plate (3), the fixing component (4) is used to fix the agricultural film horizontally, the fixing component (4) is fixedly connected to the second support plate (3), the upper end of the regulating component (5) is movably connected to the second support plate (3), the lower end of the regulating component (5) is movably connected to the first support plate (1), a driving component (6) is installed on the side wall of the regulating component (5), the upper end of the driving component (6) is arranged above the regulating component (5), and the driving component (6) is movably connected to the second support plate (3).

2. The polyethylene agricultural film rubbing test device according to claim 1, characterized in that: The first support plate (1) is provided with a first slot hole (7), and opposite side walls of the first slot hole (7) are provided with third limiting grooves (8); the second support plate (3) is provided with a second slot hole (9), and the second slot hole (9) is arranged directly above the first slot hole (7), and opposite side walls of the second slot hole (9) are provided with second limiting grooves (10).

3. The polyethylene agricultural film rubbing test device according to claim 2, characterized in that: The regulating component (5) comprises a protective shell (11), the protective shell (11) being a hollow structure with an upper end open, the upper end of the protective shell (11) being movably clamped in the second limiting groove (10), the lower end of the protective shell (11) being movably clamped in the third limiting groove (8), the protective shell (11) being provided with fourth limiting grooves (12) on two opposite inner side walls, a pressing plate (13) being movably mounted in the protective shell (11), the pressing plate (13) being movably clamped in the protective shell (11) through the fourth limiting grooves (12), first baffles (14) being mounted on opposite side walls of the upper end of the pressing plate (13), a second spring (15) being mounted on the upper wall of the first baffle plate (14), a first regulating plate (16) being mounted on the upper end of the second spring (15), the first regulating plate (16) being arranged just above the pressing plate (13).

4. The polyethylene agricultural film rubbing test device according to claim 3, characterized in that: The upper wall of the pressing plate (13) is provided with a first placement groove (17), the lower end of the first regulating plate (16) is movably clamped in the first placement groove (17), the inner bottom wall of the protective shell (11) is provided with a first spring (18), and the bottom wall of the pressing plate (13) arranged in the protective shell (11) is connected to the upper end of the first spring (18).

5. The polyethylene agricultural film rubbing test device according to claim 4, characterized in that: The driving assembly (6) comprises a connecting plate (19), the lower end of the connecting plate (19) being connected to the side wall of the protective shell (11), the upper end of the connecting plate (19) being provided with a mounting seat (20), the mounting seat (20) being provided with a variable speed motor (21), the upper end of the connecting plate (19) being provided with a driving shaft (22) being movably mounted, one end of the driving shaft (22) being connected to the output shaft end of the variable speed motor (21), the other end of the driving shaft (22) being provided with a driving plate (23), the driving plate (23) being movably connected to the upper wall of the first regulating plate (16), and the outer side wall of the driving plate (23) being provided with a ball bearing.

6. The polyethylene agricultural film rubbing test device according to claim 5, characterized in that: Limiting plates (24) are installed on opposite side walls of the connecting plate (19), a first limiting groove (25) is provided on the upper wall of the second supporting plate (3), and the lower end of the limiting plate (24) is movably engaged in the first limiting groove (25).

7. The polyethylene agricultural film rubbing test device according to claim 6, characterized in that: The fixing assembly (4) comprises a fixing plate (26), wherein the fixing plate (26) is arranged on the upper wall of the second support plate (3), and the fixing assembly (4) further comprises a third spring (27), wherein the third spring (27) is arranged on both sides of the fixing plate (26), and a second regulating plate (28) is installed on the upper end of the third spring (27), and the second regulating plate (28) is arranged at the upper end of the fixing plate (26).

8. The polyethylene agricultural film rubbing test device according to claim 7, characterized in that: The upper wall of the fixing plate (26) is provided with a second placement groove (29), and the lower end of the second regulating plate (28) is movably engaged in the second placement groove (29).

9. The polyethylene agricultural film rubbing test device according to claim 8, characterized in that: An end of the first support plate (1) away from the fixing assembly (4) is provided with a mounting plate (30), a hydraulic rod (31) being mounted on the mounting plate (30), and a movable end of the hydraulic rod (31) being connected to a side wall of the protective shell (11).

10. The polyethylene agricultural film rubbing test device according to claim 9, characterized in that: The bottom wall of the first regulating plate (16), the bottom wall of the second regulating plate (28), the inner bottom wall of the first placement groove (17) and the inner bottom wall of the second placement groove (29) are all provided with a rubber layer.

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