Tensile strength detection device for polyurethane film

Abstract

The tensile strength detection device comprises a detection supporting frame, a sliding groove is formed in the inner wall of the detection supporting frame, a lifting table is connected to the inner wall of the sliding groove in a sliding mode, a movable table is connected to the inner wall of the lifting table in a sliding mode, a rack is fixedly connected to one side of the upper end of the lifting table, and the rack is fixedly connected to the other side of the upper end of the lifting table. A second driving motor is fixedly mounted on one side of the upper end of the moving table, and the output end of the second driving motor is in transmission connection with a driving gear. The driving motor III is started to enable the rotating disc to rotate in the moving table and the sliding rod to slide on the swinging rod, so that the rotating frame swings in the moving table, the driving motor II is started while swinging, so that the moving table slides in the lifting table, and the driving motor II is matched with the driving motor III to drive the rotating frame to rotate in the moving table. The tensile strength of the polyurethane film on the equipment can be detected under different conditions, and the large error between the data collected by the tensile test and the actual use data is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tensile strength detection of polyurethane films, in particular to a tensile strength detection device for polyurethane films. Background Art

[0002] Polyurethane films are mainly produced by processes such as blow molding and extrusion. Polyurethane films have good tension, elasticity, and good waterproof and breathable properties, and are often used in the medical field. The polyurethane films produced in the factory need to be tested for tensile strength, so a tensile strength testing device will be used.

[0003] At present, the tensile strength testing devices used in most factories only stretch vertically to detect the tensile data. However, in the actual application of polyurethane film, the stretching direction and angle will vary depending on the actual use situation, and the tensile force it withstands will not be a uniform and slow tensile force. The existing tensile testing machines only stretch in the vertical direction, resulting in a large error between the data collected by the tensile test and the actual use data. Utility Model Content

[0004] The utility model aims to provide a tensile strength detection device for polyurethane film to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a tensile strength testing device for polyurethane film, comprising a testing support frame, the inner wall of the testing support frame is provided with a slide groove, the inner wall of the slide groove is slidably connected with a lifting platform, the inner wall of the lifting platform is slidably connected with a moving platform, one side of the upper end of the lifting platform is fixedly connected with a rack, one side of the upper end of the moving platform is fixedly installed with a driving motor 2, the output end of the driving motor 2 is transmission-connected with a driving gear, one side of the driving gear is meshed with one side of the rack, the other side of the upper end of the moving platform is fixedly installed with a driving motor 3, the output end of the driving motor 3 is fixedly connected with a rotating disk, the lower end of the rotating disk and near the edge are fixedly connected with a sliding rod, the inner wall of the moving platform is rotatably connected with a rotating frame, one side of the rotating frame is fixedly connected with a swing rod, and the outer side wall of the swing rod is slidably connected to the inner wall of the sliding rod.

[0006] As a further preferred embodiment of the present technical solution, one end of the rotating frame is fixedly connected to a clamping assembly 1, and the clamping assembly 1 includes a fixed frame, a threaded rod 1 is threadedly connected to the middle part of one side of the fixed frame, one end of the threaded rod 1 is fixedly connected to a clamping plate, both sides of the clamping plate are slidably connected to the inner wall of the fixed frame, and a concave-convex plate is fixedly connected to one side of the inner wall of the fixed frame.

[0007] As a further preferred embodiment of the present technical solution, the lower end of the detection support frame is fixedly connected to a detection base, the middle part of the upper end of the detection base is fixedly connected to a clamping component 2, and the four corners of the lower end of the detection base are fixedly connected to support feet.

[0008] As a further preferred embodiment of the present technical solution, a protective shell 1 is fixedly connected to the upper end of the detection support frame, a drive motor 1 is fixedly installed on one side of the protective shell 1, and a rotating shaft is fixedly connected to the output end of the drive motor 1.

[0009] As a further preferred embodiment of the present technical solution, the outer side wall of the rotating shaft is fixedly connected to two bevel gears 1, one side of the two bevel gears 1 is respectively provided with a bevel gear 2, one side of the two bevel gears 2 is respectively meshed with one side of the two bevel gears 1, the lower ends of the two bevel gears 2 are fixedly connected to a threaded rod 2, and the outer side walls of the two threaded rods 2 are respectively threadedly connected to the two sides of the lifting platform.

[0010] As a further preferred embodiment of the present technical solution, a protective shell 2 is provided on one side of the protective shell 1, and a lower end of the protective shell 2 is fixedly connected to an upper end of the detection support frame.

[0011] As a further preferred embodiment of the present technical solution, a control panel is fixedly mounted on one side of the detection support frame, and one side of the control panel is electrically connected to one side of drive motor one, drive motor two and drive motor three respectively.

[0012] The utility model provides a tensile strength detection device for polyurethane film, which has the following beneficial effects:

[0013] (1) The utility model starts the driving motor three to make the rotating disk rotate in the moving platform, and the sliding rod slides on the swinging rod, so that the rotating frame swings in the moving platform. While swinging, the driving motor two is started to make the moving platform slide in the lifting platform. The cooperation of the driving motor two and the driving motor three can perform tensile strength testing on the polyurethane film on the equipment under different conditions, thereby reducing the large error between the data collected in the tensile test and the actual use data.

[0014] (2) The utility model turns on the driving motor 1 to make the rotating shaft rotate horizontally. The two bevel gears 1 mesh with the bevel gear 2 to convert the horizontal rotation force into a longitudinal force, thereby driving the two threaded rods 2 to rotate. This structure can ensure that the two threaded rods 2 rotate at the same speed, preventing the lifting platform from tilting when sliding in the detection support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2This is a schematic diagram of the connection relationship between the threaded rod 2 and the lifting platform in the utility model;

[0017] Figure 3 It is a schematic diagram of the explosion structure of the lifting platform in the utility model;

[0018] Figure 4 for Figure 3 A partial enlarged schematic diagram of the middle A area;

[0019] In the figure: 1. detection support frame; 2. detection base; 3. support foot; 4. control panel; 5. clamping component one; 51. fixed frame; 52. clamping plate; 53. concave-convex plate; 54. threaded rod one; 6. protective shell one; 7. drive motor one; 8. protective shell two; 9. slide groove; 10. rotating shaft; 11. lifting platform; 12. clamping component two; 13. bevel gear one; 14. bevel gear two; 15. threaded rod two; 16. rack; 17. moving platform; 18. drive motor two; 19. drive gear; 20. drive motor three; 21. rotating disk; 22. sliding rod; 23. rotating frame; 24. swing rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figure 1 - Figure 4As shown, in this embodiment, a tensile strength detection device for a polyurethane film comprises a detection support frame 1, a slide groove 9 is provided on the inner wall of the detection support frame 1, a lifting platform 11 is slidably connected to the inner wall of the slide groove 9, a moving platform 17 is slidably connected to the inner wall of the lifting platform 11, a rack 16 is fixedly connected to one side of the upper end of the lifting platform 11, a driving motor 2 18 is fixedly installed on one side of the upper end of the moving platform 17, the output end of the driving motor 2 18 is transmission-connected to a driving gear 19, one side of the driving gear 19 is meshed with one side of the rack 16, a driving motor 3 20 is fixedly installed on the other side of the upper end of the moving platform 17, the output end of the driving motor 3 20 is fixedly connected to a rotating disk 21, and the lower end of the rotating disk 21 and near the edge A sliding rod 22 is fixedly connected, and a rotating frame 23 is rotatably connected to the inner wall of the movable platform 17. A swing rod 24 is fixedly connected to one side of the rotating frame 23. The outer wall of the swing rod 24 is slidably connected to the inner wall of the sliding rod 22. By turning on the driving motor three 20, the rotating disk 21 is rotated in the movable platform 17, and the sliding rod 22 slides on the swing rod 24, so that the rotating frame 23 swings in the movable platform 17. While swinging, the driving motor two 18 is turned on to make the movable platform 17 slide in the lifting platform 11. The cooperation of the driving motor two 18 and the driving motor three 20 can perform tensile strength detection on the polyurethane film on the equipment under different conditions, thereby reducing the large error between the data collected in the tensile test and the actual use data.

[0022] like Figure 1 - Figure 4 As shown, one end of the rotating frame 23 is fixedly connected to a clamping assembly 5, and the clamping assembly 5 includes a fixing frame 51, a threaded rod 54 is threadedly connected to the middle part of one side of the fixing frame 51, and one end of the threaded rod 54 is fixedly connected to a clamping plate 52, and both sides of the clamping plate 52 are slidably connected to the inner wall of the fixing frame 51, and one side of the inner wall of the fixing frame 51 is fixedly connected to a concave-convex plate 53, wherein the structure of the clamping assembly 5 is the same as that of the clamping assembly 2 12, and the threaded rod 54 is rotated to make the clamping plate 52 slide in the fixing frame 51, and then one end of the polyurethane film is placed on the concave-convex plate 53, and the threaded rod 54 is rotated in the opposite direction, so that the clamping plate 52 fixes the polyurethane film in the clamping assembly 5.

[0023] like Figure 1 As shown, the lower end of the detection support frame 1 is fixedly connected to the detection base 2, the middle part of the upper end of the detection base 2 is fixedly connected to the clamping component 2 12, and the four corners of the lower end of the detection base 2 are fixedly connected to support feet 3, which are used to support the entire equipment to facilitate the forklift to move the equipment.

[0024] like Figure 1 and Figure 2As shown, the upper end of the detection support frame 1 is fixedly connected with a protective shell 6, and a driving motor 7 is fixedly installed on one side of the protective shell 6. The output end of the driving motor 7 is fixedly connected with a rotating shaft 10. The driving motor 7 is used to drive the rotating shaft 10 to rotate, ensuring that the lifting platform 11 can slide up and down in the detection support frame 1.

[0025] like Figure 1 and Figure 2 As shown, the outer wall of the rotating shaft 10 is fixedly connected to two bevel gears 13, one side of the two bevel gears 13 is respectively provided with a bevel gear 2 14, one side of the two bevel gears 14 is respectively meshed with one side of the two bevel gears 13, the lower ends of the two bevel gears 14 are fixedly connected to threaded rods 2 15, the outer side walls of the two threaded rods 2 15 are respectively threadedly connected to the two sides of the lifting platform 11, the meshing of the two bevel gears 13 and the bevel gear 2 14 can convert the lateral rotation force into a longitudinal force, thereby driving the two threaded rods 2 15 to rotate, this structure can ensure that the two threaded rods 2 15 rotate at the same speed, and prevent the lifting platform 11 from tilting when sliding in the detection support frame 1.

[0026] like Figure 1 and Figure 2 As shown, a protective shell 2 8 is provided on one side of the protective shell 1 6, and the lower end of the protective shell 2 8 is fixedly connected to the upper end of the detection support frame 1. The protective shell 1 6 and the protective shell 2 8 respectively protect the bevel gear 1 13 and the bevel gear 2 14 to prevent dust from entering the gap between the bevel gear 1 13 and the bevel gear 2 14.

[0027] like Figure 1 As shown, a control panel 4 is fixedly installed on one side of the detection support frame 1, and one side of the control panel 4 is electrically connected to one side of the drive motor 1 7, the drive motor 2 18 and the drive motor 3 20 respectively. The control panel 4 is used to control the coordination between the drive motor 1 7, the drive motor 2 18 and the drive motor 3 20, thereby ensuring that tensile strength testing can be performed under different conditions.

[0028] The utility model provides a tensile strength detection device for polyurethane film, and the specific working principle is as follows:

[0029] When testing the tensile strength of the polyurethane film, the threaded rod 1 54 is rotated to make the clamping plate 52 slide in the fixing frame 51, and then one end of the polyurethane film is placed on the concave-convex plate 53, and the threaded rod 1 54 is rotated in the opposite direction, so that the clamping plate 52 fixes the polyurethane film in the clamping assembly 1 5, and the clamping assembly 2 12 is also operated in the same way to fix the other end of the polyurethane film. The staff turns on the driving motor 1 7 through the control panel 4 to make the rotating shaft 10 rotate horizontally, and the two bevel gears 1 13 and the bevel gear 2 14 are engaged to rotate horizontally. The force is converted into a longitudinal force, thereby driving the two threaded rods 2 15 to rotate and the lifting platform 11 to rise. When it is necessary to measure the pulling force under different conditions, the drive motor 3 20 is turned on to make the rotating disk 21 rotate in the moving platform 17, and the sliding rod 22 slides on the swing rod 24, so that the rotating frame 23 swings in the moving platform 17. While swinging, the drive motor 2 18 is turned on to make the moving platform 17 slide in the lifting platform 11. The cooperation of the drive motor 2 18 and the drive motor 3 20 can be used to perform tensile strength testing on the polyurethane film on the equipment under different conditions.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tensile strength testing device for a polyurethane film, comprising a testing support frame (1), characterized in that: The inner wall of the detection support frame (1) is provided with a slide groove (9), the inner wall of the slide groove (9) is slidably connected to a lifting platform (11), the inner wall of the lifting platform (11) is slidably connected to a moving platform (17), one side of the upper end of the lifting platform (11) is fixedly connected to a rack (16), one side of the upper end of the moving platform (17) is fixedly installed with a second drive motor (18), the output end of the second drive motor (18) is transmission-connected to a drive gear (19), one side of the drive gear (19) is connected to the rack (16) The movable platform (17) is meshed with one side thereof, a driving motor (20) is fixedly installed on the other side of the upper end of the movable platform (17), the output end of the driving motor (20) is fixedly connected to a rotating disk (21), the lower end of the rotating disk (21) and near the edge thereof is fixedly connected to a sliding rod (22), the inner wall of the movable platform (17) is rotatably connected to a rotating frame (23), one side of the rotating frame (23) is fixedly connected to a swinging rod (24), and the outer wall of the swinging rod (24) is slidably connected to the inner wall of the sliding rod (22).

2. A tensile strength testing device for polyurethane film according to claim 1, characterized in that: One end of the rotating frame (23) is fixedly connected to a clamping assembly (5), and the clamping assembly (5) comprises a fixed frame (51), a threaded rod (54) is threadedly connected to the middle of one side of the fixed frame (51), one end of the threaded rod (54) is fixedly connected to a clamping plate (52), both sides of the clamping plate (52) are slidably connected to the inner wall of the fixed frame (51), and one side of the inner wall of the fixed frame (51) is fixedly connected to a concave-convex plate (53).

3. The tensile strength testing device for polyurethane film according to claim 1, characterized in that: The lower end of the detection support frame (1) is fixedly connected to a detection base (2), the middle part of the upper end of the detection base (2) is fixedly connected to a clamping assembly 2 (12), and the four corners of the lower end of the detection base (2) are fixedly connected to support feet (3).

4. The tensile strength testing device for polyurethane film according to claim 1, characterized in that: The upper end of the detection support frame (1) is fixedly connected to a protective shell (6), a driving motor (7) is fixedly mounted on one side of the protective shell (6), and the output end of the driving motor (7) is fixedly connected to a rotating shaft (10).

5. A tensile strength testing device for polyurethane film according to claim 4, characterized in that: The outer side wall of the rotating shaft (10) is fixedly connected to two bevel gears (13), one side of the two bevel gears (13) is respectively provided with bevel gears (14), one side of the two bevel gears (14) is respectively meshed with one side of the two bevel gears (13), the lower ends of the two bevel gears (14) are fixedly connected to threaded rods (15), and the outer side walls of the two threaded rods (15) are respectively threadedly connected to two sides of the lifting platform (11).

6. The tensile strength testing device for polyurethane film according to claim 4, characterized in that: A protective shell 2 (8) is provided on one side of the protective shell 1 (6), and the lower end of the protective shell 2 (8) is fixedly connected to the upper end of the detection support frame (1).

7. The tensile strength testing device for polyurethane film according to claim 1, characterized in that: A control panel (4) is fixedly mounted on one side of the detection support frame (1), and one side of the control panel (4) is electrically connected to one side of drive motor 1 (7), drive motor 2 (18) and drive motor 3 (20) respectively.

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