Film tensile test device
The innovative design of the lifting and clamping components solved the problem of sample detachment in thin film tensile testing, achieving stable clamping of the film and smooth execution of the tensile process, thus improving the reliability of the test.
Patent Information
- Application Number
- CN202520261896.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-12-05
- Filing Date
- 2025-02-19
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-19
AI Technical Summary
Existing thin film tensile testing equipment is prone to detaching the thin film sample during tensile testing due to its smooth surface and small thickness, which affects the test results.
The design employs a combination of lifting and clamping components, using an electric telescopic rod and protrusions embedded in grooves to fix the film, and combined with the rotation and winding of the connecting rod and clamping plate to ensure that the film does not slip during the stretching process.
This method effectively fixes the film during tensile testing, avoids sample detachment, and improves the reliability and accuracy of the test.
Smart Images
Figure CN223711254U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of film production, concretely to a film tensile test device. BACKGROUND
[0002] Plastic film is a kind of film made of polyvinyl chloride and other resins, mainly used as packaging or film coating layer, and the tensile property of plastic film is one of the evaluation criteria for determining its quality, a small section of plastic film is intercepted after production, and then the tensile test is carried out on the plastic film.
[0003] The existing film tensile test device carries out tensile test, the two ends of the plastic film are fixed by a clamp, and then the plastic film is pulled at a constant speed by mechanical force until the plastic film is broken, but the surface of the plastic film is smooth and the thickness is small, and the film sample is prone to unclamping, which affects the tensile test. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a film tensile test device to solve the problems in the above background.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a film tensile test device, comprising a bottom plate, the top surface of the bottom plate is fixedly connected with a fixed frame at the rear end, the inside of the fixed frame is provided with a lifting assembly, the lifting assembly is connected with a first mounting frame, the top surface of the bottom plate is fixedly connected with two tension sensors at the front end, the top surface of the two tension sensors is fixedly connected with a second mounting frame, the side surface of the first mounting frame and the second mounting frame is fixedly connected with a second motor at the middle part, the output shaft of the second motor is fixedly connected with a connecting rod, the connecting rod is rotatably connected to the inner side wall of the first mounting frame and the second mounting frame at the end away from the second motor, the two ends of the connecting rod are fixedly connected with two L-shaped plates, and the L-shaped plate is provided with a clamping assembly.
[0006] Preferably, the lifting assembly comprises a first motor, the first motor is fixedly connected to the bottom of the inner side wall of the fixed frame, the output shaft of the first motor is fixedly connected with a threaded rod, the threaded rod is rotatably connected to the top wall of the fixed frame at the top end, the threaded rod is threadedly connected with a T-shaped sliding block, the end away from the threaded rod of the T-shaped sliding block is slidably connected with a sliding rod, the two ends of the sliding rod are fixedly connected to the upper and lower inner side walls of the fixed frame, and the first mounting frame is fixedly connected to the side surface of the T-shaped sliding block.
[0007] Preferably, the clamping assembly comprises an electric telescopic rod, the electric telescopic rod is fixedly connected to the side surface of the L-shaped plate, the telescopic end of the electric telescopic rod is fixedly connected with a clamping plate, and the clamping plate is provided with a protrusion at the middle part away from the electric telescopic rod.
[0008] Preferably, the connecting rod is U-shaped, and a groove is formed in the middle of the inner side surface of the connecting rod.
[0009] Preferably, the protrusion is matched with the groove.
[0010] Preferably, the connecting rod and the clamping plate are fixedly connected with a non-slip pad.
[0011] Compared with the prior art, the utility model has the beneficial effects that:
[0012] In use, the both ends of the film strip are placed between the connecting rod and the clamping plate, the electric telescopic rod drives the clamping plate to extend, the protrusion is embedded into the groove, thereby clamping and fixing the film strip, the second motor drives the connecting rod to rotate, so that the film strip is wound on the surface of the connecting rod and the clamping plate, and the film strip is prevented from slipping off during stretching. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a whole structure schematic view of the utility model;
[0014] Figure 2 It is a fixed frame sectional structure schematic view of the utility model;
[0015] Figure 3 It is a clamping assembly structure schematic view of the utility model;
[0016] Figure 4 It is a connecting rod structure schematic view of the utility model.
[0017] In the drawing: 1, bottom plate; 2, fixed frame; 3, lifting assembly; 31, first motor; 32, threaded rod; 33, T-shaped sliding block; 34, sliding rod; 4, first mounting frame; 5, tension sensor; 6, second mounting frame; 7, second motor; 8, connecting rod; 9, L-shaped plate; 10, clamping assembly; 101, electric telescopic rod; 102, clamping plate; 103, protrusion; 11, groove. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0019] Please refer to Figures 1-4The utility model provides a technical scheme: a kind of film tensile test device, including bottom plate 1, fixed frame 2 is installed in the top surface rear end of bottom plate 1 by bolt, lifting assembly 3 is installed in the inside of fixed frame 2, two tension sensors 5 are installed in the top surface front end of bottom plate 1 by bolt, second mounting bracket 6 is installed in the top surface of two tension sensors 5 by bolt, two second motor 7 are respectively installed in the middle part of first mounting bracket 4, second mounting bracket 6 side face by bolt, second motor 7 is slow motor, the output shaft of two second motor 7 penetrates first mounting bracket 4, second mounting bracket 6, connecting rod 8 is installed in the output shaft of second motor 7 by coupling, connecting rod 8 is rotatably installed in the inner side wall of first mounting bracket 4, second mounting bracket 6 by bearing away from second motor 7 one end, two L-shaped plates 9 are installed in the both ends of connecting rod 8 by bolt, clamping assembly 10 is installed in L-shaped plate 9 side face.
[0020] Lifting assembly 3 includes first motor 31, first motor 31 is slow motor, first motor 31 is rotatably installed in the bottom of the inner side wall of fixed frame 2 by bolt, threaded rod 32 is installed in the output shaft of first motor 31 by coupling, threaded rod 32 top end is rotatably installed in the top wall of fixed frame 2 by bearing, T-shaped slider 33 one end is threadedly connected with threaded rod 32, sliding rod 34 is slidably connected with the end of T-shaped slider 33 away from threaded rod 32, and sliding rod 34 both ends are installed on the upper and lower inner side walls of fixed frame 2 by bolt, first mounting bracket 4 is installed in the side face of T-shaped slider 33 by bolt.
[0021] Clamping assembly 10 includes electric telescopic rod 101, electric telescopic rod 101 is installed in L-shaped plate 9 side face by bolt, and the telescopic end of electric telescopic rod 101 penetrates L-shaped plate 9, clamping plate 102 is installed in the telescopic end of electric telescopic rod 101 by bolt, and convex 103 is integrally formed in the middle part of the side of clamping plate 102 away from electric telescopic rod 101.
[0022] The middle end of connecting rod 8 is U-shaped, recess 11 is arranged in the middle part of the inner side face of connecting rod 8, and the shape of convex 103 is consistent with recess 11.
[0023] Anti-skid pad is adhered to the side face of connecting rod 8 and clamping plate 102.
[0024] Working principle: the utility model discloses when using, the both ends of film long strip are placed between connecting rod 8 and clamping plate 102, start electric telescopic rod 101, and electric telescopic rod 101 drives clamping plate 102 to stretch out, and the protruding 103 is embedded into recess 11, thereby clamping and fixing film long strip, start second motor 7, and second motor 7 drives connecting rod 8 to rotate, make film long strip winding in connecting rod 8 and clamping plate 102 surface, avoid film long strip to slip off when stretching, start first motor 31, and first motor 31 drives screw rod 32 to rotate, make T type sliding block 33 drive first mounting bracket 4 to move upwards, thereby carry out the tensile test to film long strip, and tension sensor 5 monitors the tensile force, the utility model has the advantages of convenient to use, and the use effect is good.
[0025] It should be noted that in this document, the terms "first" and "second" and the like are used merely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0026] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A film tensile testing apparatus, comprising a base plate (1), characterized in that: A fixed frame (2) is fixedly connected to the rear end of the top surface of the base plate (1). A lifting component (3) is provided inside the fixed frame (2). A first mounting frame (4) is connected to the lifting component (3). Two tension sensors (5) are fixedly connected to the front end of the top surface of the base plate (1). A second mounting frame (6) is fixedly connected to the top surface of the two tension sensors (5). A second motor (7) is fixedly connected to the middle of the side of the first mounting frame (4) and the second mounting frame (6). A connecting rod (8) is fixedly connected to the output shaft of the second motor (7). The end of the connecting rod (8) away from the second motor (7) is rotatably connected to the inner side wall of the first mounting frame (4) and the second mounting frame (6). Two L-shaped plates (9) are fixedly connected to both ends of the connecting rod (8). A clamping component (10) is provided on the side of the L-shaped plate (9).
2. The thin film tensile testing apparatus according to claim 1, characterized in that: The lifting assembly (3) includes a first motor (31), which is fixedly connected to the bottom of the inner wall of the fixed frame (2). The output shaft of the first motor (31) is fixedly connected to a threaded rod (32). The top end of the threaded rod (32) is rotatably connected to the top wall of the fixed frame (2). The threaded rod (32) is threadedly connected to a T-shaped slider (33). The end of the T-shaped slider (33) away from the threaded rod (32) is slidably connected to a slide rod (34). The two ends of the slide rod (34) are fixedly connected to the upper and lower inner walls of the fixed frame (2). The first mounting bracket (4) is fixedly connected to the side of the T-shaped slider (33).
3. The thin film tensile testing apparatus according to claim 1, characterized in that: The clamping assembly (10) includes an electric telescopic rod (101), which is fixedly connected to the side of the L-shaped plate (9). A clamping plate (102) is fixedly connected to the telescopic end of the electric telescopic rod (101), and a protrusion (103) is provided in the middle of the side of the clamping plate (102) away from the electric telescopic rod (101).
4. The thin film tensile testing apparatus according to claim 1, characterized in that: The middle end of the connecting rod (8) is U-shaped, and a groove (11) is provided in the middle of the inner side of the connecting rod (8).
5. The thin film tensile testing apparatus according to claim 3, characterized in that: The shape of the protrusion (103) matches the groove (11).
6. The thin film tensile testing apparatus according to claim 1, characterized in that: The connecting rod (8) and the clamping plate (102) are fixedly connected with anti-slip pads on their sides.