A tensile strength detection device

Abstract

The utility model discloses a tensile strength detection device, including the test platform, the test platform one side fixedly connected with the rotating seat, the rotating seat is rotatoryly connected with the rotating block, the rotating block one side fixedly connected with the adjusting plate, the adjusting plate one side is provided with the support plate, the adjusting plate one side is provided with the interval adjusting subassembly, the test platform one side is provided with the sliding slot, the sliding slot is slidably connected with the sliding block. In the utility model, fixedly connected with the speed reducer through the rotating seat one side, and the speed reducer output fixedly connected with the rotating block through the rotating seat, when the speed reducer starts, can drive the rotating block steady rotation on the rotating seat, and then drives the adjusting plate synchronous rotation connected with the rotating block, makes the plastic film fixed on the adjusting plate one side support plate through the clamping component adjust angle, can accurate test the tensile strength of plastic film under different angles.

Description

Technical Field

[0001] This utility model relates to the field of thin film tensile strength testing technology, and in particular to a tensile strength testing device. Background Technology

[0002] Plastic films, with their advantages of being lightweight, flexible, and having strong barrier properties, are widely used in various fields such as food packaging, agricultural planting, and industrial protection. In these applications, plastic films need to withstand certain tensile forces, such as the sealing tension of food packaging films and the laying tension of agricultural mulch films. Therefore, their tensile strength has become a core performance indicator for measuring product quality and safety, and accurate tensile strength testing is a key link in quality control during the plastic film production process.

[0003] Existing devices typically have clamping components fixed horizontally, allowing only tensile strength testing of plastic films in a horizontal position. However, in practical use, plastic films are often not horizontal, and horizontal test data cannot reflect the actual tensile performance of the film in an inclined state, leading to discrepancies between test results and actual usage requirements. Furthermore, plastic films often experience instantaneous breakage during stretching, resulting in a sudden drop in tensile force and generating a momentary impact force. Since the tensile drive mechanism and tensile tester in existing devices are rigidly connected directly to the clamping components, this impact force is directly transmitted to the servo motor, potentially causing motor overload shutdown, damage to internal gears, and damage to the force sensor of the tensile tester. This can easily lead to sensor accuracy drift or even permanent damage, shortening the equipment's lifespan and requiring frequent maintenance and calibration, increasing testing costs and time. To overcome these disadvantages, this invention provides a tensile strength testing device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a tensile strength testing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tensile strength testing device, comprising a test platform, a rotating seat fixedly connected to one side of the test platform, a rotating block rotatably connected to the rotating seat, an adjusting plate fixedly connected to one side of the rotating block, a support plate provided on one side of the adjusting plate, a spacing adjusting component provided on one side of the adjusting plate, a sliding groove provided on one side of the test platform, a slider slidably connected to the sliding groove, a tensile tester fixedly connected to one side of the slider, a connecting plate fixedly connected to one side of the test platform and located on the side of the sliding groove, an L-shaped plate slidably connected to one side of the test platform and located on the side of the connecting plate, the testing end of the tensile tester being fixedly connected through the connecting plate and one side of the L-shaped plate, a buffer component provided on one side of the connecting plate, a clamping component provided on one side of the L-shaped plate and the support plate, a moving component provided inside the sliding groove, and a reduction motor fixedly connected to one side of the rotating seat, the output end of the reduction motor being fixedly connected through the rotating seat and one side of the rotating block.

[0006] Furthermore, the spacing adjustment assembly includes a plurality of first fixing holes on one side of the adjustment plate, and a plurality of second fixing holes on one side of the support plate. The second fixing holes and the first fixing holes are provided with threaded lines, and fixing bolts are threadedly connected to the second fixing holes and the first fixing holes.

[0007] Furthermore, the buffer assembly includes a sliding hole on one side of the connecting plate, a sliding rod slidably connected to the sliding hole, one end of the sliding rod being fixedly connected to one side of the L-shaped plate, and a spring being fixedly connected to one side of the connecting plate and around the sliding rod, one end of the spring being fixedly connected to one side of the L-shaped plate.

[0008] Furthermore, the clamping assembly includes a first wave clamping plate fixedly connected to one side of an L-shaped plate and a support plate, a gantry frame fixedly connected to one side of the L-shaped plate and the support plate, an electric hydraulic cylinder fixedly connected to one side of the gantry frame, and a second wave clamping plate fixedly connected to the output end of the electric hydraulic cylinder through the gantry frame.

[0009] Furthermore, the moving component includes a threaded rod rotatably connected to the slide rail, a threaded hole is provided on one side of the slider, the threaded hole and the threaded rod are threadedly connected, a servo motor is fixedly connected to one side of the test bench, and the output end of the servo motor passes through the slide rail and is fixedly connected to one end of the threaded rod.

[0010] Furthermore, a control board is fixedly connected to one side of the test bench, a PLC controller is fixedly connected to one side of the control board, and a control panel is fixedly connected to one side of the PLC controller. The control panel and the PLC controller are electrically connected.

[0011] The beneficial effects of this utility model are: When using this utility model, 1. By fixing a geared motor to one side of the rotating base, and fixing the output end of the geared motor through the rotating base and the rotating block, when the geared motor starts, it can drive the rotating block to rotate stably on the rotating base, thereby driving the adjustment plate connected to the rotating block to rotate synchronously. This causes the plastic film fixed on the support plate on one side of the adjustment plate by the clamping assembly to adjust its angle accordingly. This breaks through the limitation of traditional devices that can only test the tensile strength of plastic film in the horizontal direction. It can accurately test the tensile strength of plastic film at different angles, meet the performance testing needs of plastic film in actual applications where it may be installed at an angle, and improve the applicability of the testing device and the comprehensiveness of the test data.

[0012] 2. A buffer assembly consisting of a sliding hole, a sliding rod, and a spring is installed on one side of the connecting plate. The sliding rod is slidably connected in the sliding hole and one end is fixed to the L-shaped plate. The spring surrounds the sliding rod and connects the connecting plate and the L-shaped plate. When the plastic film is subjected to tensile testing, if the plastic film breaks instantaneously, the tensile force of the tensile tester on the L-shaped plate will suddenly increase. The spring in the buffer assembly will undergo elastic deformation due to the instantaneous force on the L-shaped plate, absorbing part of the impact force through its own expansion and contraction characteristics. At the same time, the sliding of the sliding rod in the sliding hole can guide the L-shaped plate to move smoothly, avoiding the impact force generated by the instantaneous breakage from being directly transmitted to the servo motor and tensile tester, effectively reducing the damage of the impact force to the servo motor and tensile tester. Attached Figure Description

[0013] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 : A perspective view of this utility model; Figure 2 The present utility model Figure 1 Enlarged schematic diagram of the structure at point B; Figure 3 : Schematic diagram of the internal structure of this utility model; Figure 4 The present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0015] The attached figures are labeled as follows: 1. Test bench; 2. Rotating seat; 3. Rotating block; 4. Adjusting plate; 5. Slide groove; 6. Slider; 7. Tensile tester; 8. Connecting plate; 9. L-shaped plate; 10. Sliding hole; 11. Sliding rod; 12. Spring; 13. First wave clamping plate; 14. Gantry frame; 15. Electric hydraulic cylinder; 16. Second wave clamping plate; 17. Support plate; 18. First fixing hole; 19. Second fixing hole; 20. Fixing bolt; 21. Gear motor; 22. Threaded rod; 23. Threaded hole; 24. Servo motor; 25. Control board; 26. PLC controller; 27. Control panel. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figure 1-4 As shown, a tensile strength testing device is disclosed, comprising a test platform 1, a rotating seat 2 fixedly connected to one side of the test platform 1, a rotating block 3 rotatably connected to the rotating seat 2, an adjusting plate 4 fixedly connected to one side of the rotating block 3, a support plate 17 provided on one side of the adjusting plate 4, a spacing adjustment component provided on one side of the adjusting plate 4, a slide groove 5 opened on one side of the test platform 1, a slider 6 slidably connected to the slide groove 5, a tensile tester 7 fixedly connected to one side of the slider 6, a connecting plate 8 fixedly connected to one side of the test platform 1 and located on the side of the slide groove 5, an L-shaped plate 9 slidably connected to one side of the test platform 1 and located on the side of the connecting plate 8, the testing end of the tensile tester 7 passing through the connecting plate 8 and one side of the L-shaped plate 9 and fixedly connected, a buffer component provided on one side of the connecting plate 8, a clamping component provided on one side of the L-shaped plate 9 and the support plate 17, a moving component provided inside the slide groove 5, and a reduction motor 21 fixedly connected to one side of the rotating seat 2, the output end of the reduction motor 21 passing through the rotating seat 2 and one side of the rotating block 3 and fixedly connected.

[0018] As shown in the figure, the spacing adjustment assembly includes several first fixing holes 18 on one side of the adjustment plate 4 and several second fixing holes 19 on one side of the support plate 17. The second fixing holes 19 and the first fixing holes 18 are provided with threaded lines, and fixing bolts 20 are threadedly connected to the second fixing holes 19 and the first fixing holes 18, which are used to adjust the distance between the support plate 17 and the L-shaped plate 9 according to the length of the film.

[0019] As shown in the figure, the buffer assembly includes a sliding hole 10 on one side of the connecting plate 8, a sliding rod 11 slidably connected to the sliding hole 10, one end of the sliding rod 11 being fixedly connected to one side of the L-shaped plate 9, and a spring 12 being fixedly connected to one side of the connecting plate 8 and around the sliding rod 11, one end of the spring 12 being fixedly connected to one side of the L-shaped plate 9, for buffering when the membrane breaks instantaneously.

[0020] As shown in the figure, the clamping assembly includes a first wave clamping plate 13 fixedly connected to one side of an L-shaped plate 9 and a support plate 17, a gantry frame 14 fixedly connected to one side of an L-shaped plate 9 and a support plate 17, an electric hydraulic cylinder 15 fixedly connected to one side of a gantry frame 14, and a second wave clamping plate 16 fixedly connected to the output end of the electric hydraulic cylinder 15 through the gantry frame 14 for clamping and fixing the film.

[0021] As shown in the figure, the moving component includes a threaded rod 22 rotatably connected to the slide 5. A threaded hole 23 is provided on one side of the slider 6. The threaded hole 23 and the threaded rod 22 are threadedly connected. A servo motor 24 is fixedly connected to one side of the test platform 1. The output end of the servo motor 24 passes through the slide 5 and is fixedly connected to one end of the threaded rod 22. It is used to drive the tensile tester 7 on the slider 6 to move to perform tensile testing on the film.

[0022] As shown in the figure, a control board 25 is fixedly connected to one side of the test bench 1, a PLC controller 26 is fixedly connected to one side of the control board 25, and a control panel 27 is fixedly connected to one side of the PLC controller 26. The control panel 27 and the PLC controller 26 are electrically connected and used to control the equipment on the device.

[0023] Working Principle: During use, first check if the entire device is intact. After inspection, the operator operates the control panel 27 to control the equipment via the PLC controller 26. Then, place both ends of the plastic film to be tested on the two sets of clamping assemblies of the device. One end is placed on the surface of the first wave clamping plate 13 on one side of the support plate 17, and the other end is placed on the surface of the first wave clamping plate 13 on one side of the L-shaped plate 9. Start the electric hydraulic cylinder 15 in both sets of clamping assemblies. The output end of the electric hydraulic cylinder 15 pushes the second wave clamping plate 16 towards the first wave clamping plate 13 until the two wave clamping plates clamp both ends of the plastic film. The wave-shaped clamping plate design increases the friction with the film, preventing slippage during stretching and completing sample fixation. During testing, if it is necessary to test the tensile strength of the plastic film at different angles, start the reduction motor 21 on one side of the rotating seat 2. The output end of the reduction motor 21 drives the rotating block 3 to rotate around the rotating shaft on the rotating seat 2. The adjustment plate 4 and support plate 17 on one side are rotated synchronously. After the sample on the support plate 17 is adjusted to the target test angle, the servo motor 24 on one side of the test platform 1 is started. The threaded rod 22 of the servo motor 24 rotates, thereby causing the slider 6 to move away from the L-shaped plate 9 along the slide groove 5. The slider 6 pulls the tensile tester 7 on one side. The test end of the tensile tester 7 is fixedly connected to the L-shaped plate 9 through the connecting plate 8. Therefore, the tensile tester 7 will apply tensile force to the plastic film through the L-shaped plate 9. At the same time, the tensile tester 7 collects the tensile force data in real time during the tensile process. During the tensile process, the plastic film breaks instantly. The L-shaped plate 9 will have an instantaneous displacement tendency due to the sudden disappearance of the tensile force. At this time, the buffer component on one side of the connecting plate 8 plays a role. The L-shaped plate 9 drives the slide rod 11 to slide in the slide hole 10. The spring 12 around the slide rod 11 absorbs the impact force generated by the instantaneous breakage through elastic deformation, avoiding the impact force from being directly transmitted to the servo motor 24 and the tensile tester 7.

[0024] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A tensile strength testing device, comprising a testing platform (1), characterized in that: A rotating seat (2) is fixedly connected to one side of the test bench (1). A rotating block (3) is rotatably connected to the rotating seat (2). An adjusting plate (4) is fixedly connected to one side of the rotating block (3). A support plate (17) is provided on one side of the adjusting plate (4). A spacing adjustment component is provided on one side of the adjusting plate (4). A slide groove (5) is opened on one side of the test bench (1). A slider (6) is slidably connected to the slide groove (5). A tensile tester (7) is fixedly connected to one side of the slider (6). A connecting device is fixedly connected to one side of the test bench (1) and located on the side of the slide groove (5). The test bench (1) is slidably connected to an L-shaped plate (9) on one side of the test bench (1) and on the side of the connecting plate (8). The test end of the tensile tester (7) is fixedly connected through the connecting plate (8) and the L-shaped plate (9) on one side. A buffer component is provided on one side of the connecting plate (8). A clamping component is provided on one side of the L-shaped plate (9) and the support plate (17). A moving component is provided inside the slide groove (5). A reduction motor (21) is fixedly connected to one side of the rotating seat (2). The output end of the reduction motor (21) is fixedly connected through the rotating seat (2) and the rotating block (3) on one side.

2. The tensile strength testing device according to claim 1, characterized in that: The spacing adjustment assembly includes a plurality of first fixing holes (18) on one side of the adjustment plate (4), and a plurality of second fixing holes (19) on one side of the support plate (17). The second fixing holes (19) and the first fixing holes (18) are provided with threaded lines, and fixing bolts (20) are threadedly connected to the second fixing holes (19) and the first fixing holes (18).

3. The tensile strength testing device according to claim 1, characterized in that: The buffer assembly includes a sliding hole (10) on one side of the connecting plate (8), a sliding rod (11) is slidably connected to the sliding hole (10), one end of the sliding rod (11) is fixedly connected to one side of the L-shaped plate (9), and a spring (12) is fixedly connected to one side of the connecting plate (8) and around the sliding rod (11), one end of the spring (12) is fixedly connected to one side of the L-shaped plate (9).

4. The tensile strength testing device according to claim 1, characterized in that: The clamping assembly includes a first wave clamp (13) fixedly connected to one side of an L-shaped plate (9) and a support plate (17), a gantry frame (14) fixedly connected to one side of the L-shaped plate (9) and the support plate (17), an electric hydraulic cylinder (15) fixedly connected to one side of the gantry frame (14), and a second wave clamp (16) fixedly connected to the output end of the electric hydraulic cylinder (15) through the gantry frame (14).

5. The tensile strength testing device according to claim 1, characterized in that: The moving component includes a threaded rod (22) rotatably connected to the slide (5). A threaded hole (23) is provided on one side of the slider (6). The threaded hole (23) and the threaded rod (22) are threadedly connected. A servo motor (24) is fixedly connected to one side of the test bench (1). The output end of the servo motor (24) passes through the slide (5) and is fixedly connected to one end of the threaded rod (22).

6. The tensile strength testing device according to claim 1, characterized in that: A control board (25) is fixedly connected to one side of the test bench (1), a PLC controller (26) is fixedly connected to one side of the control board (25), a control panel (27) is fixedly connected to one side of the PLC controller (26), and the control panel (27) and the PLC controller (26) are electrically connected.

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