Device for preparing polymer film tensile sample

Abstract

The utility model relates to the technical field of polymer film tensile sample preparation, and discloses a polymer film tensile sample preparation device which comprises a cutting table, electric sliding rails are fixedly connected to the front side and the rear side of the cutting table, and a supporting frame is connected to the top sides of the two electric sliding rails in a sliding mode. An electric telescopic rod is fixedly connected to the bottom side of the middle end of the supporting frame, a cutting knife is connected to the driving end of the electric telescopic rod through an inserting assembly, two sliding blocks are connected to the bottom side of the cutting table through a moving assembly, and pressing plates are connected to the top sides of the two sliding blocks through telescopic assemblies. The left ends and the right ends of the two pressing plates are connected with the sliding blocks through locking assemblies. According to the film cutting device, the lock shell is shifted to compress the spring so that the lock shell can be separated from the connecting position of the first plug and the second plug, the cutting knife can be detached and replaced according to needs, meanwhile, the threaded rod can be matched with the pressing plate to press and position films of different sizes, and the films can be conveniently cut by the cutting knife.

Description

Technical Field

[0001] The utility model relates to the technical field of preparing polymer film tensile specimens, in particular to a device for preparing polymer film tensile specimens. Background Art

[0002] With the development of industry, polymer films have been widely used in agriculture, packaging, information, energy and other fields. They are not only closely related to our daily life, but also key materials for high technologies such as aviation and national defense. The tensile property of polymer materials is one of the important and basic properties of its mechanical properties, which largely determines the use occasions of this polymer material. The quality of tensile properties can be tested by tensile tests.

[0003] After searching, a device for preparing polymer film tensile specimens with announcement number CN220418950U includes: a cylinder, which is fixed on a bracket; a pressing rod, which passes through the cylinder and can move up and down along the axial direction of the cylinder, and a sample cutting knife is provided at the bottom of the pressing rod, and the part of the pressing rod located inside the cylinder is sleeved with an elastic member; a sample cutting operation platform, which is provided below the sample cutting knife and is used to place the polymer film sample to be cut; and a clamp, which is used to clamp the polymer film sample to be cut. The device can choose to replace and install sample cutting knives of different sizes and shapes according to the actual tensile test requirements to prepare samples of different sizes and more complex shapes, such as dumbbell-shaped samples.

[0004] Based on the above patent, the samples with complex shapes mentioned in the background technology, such as dumbbell-shaped samples, are difficult to cut. In view of this, and to address this technical problem, the present application proposes a device for preparing polymer film tensile samples. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a device for preparing a polymer film tensile specimen is proposed. By turning the lock shell compression spring, the lock shell and the connection between the plug one and the plug two are separated, so that the cutting knife can be disassembled and replaced as needed. At the same time, the threaded rod can be used in conjunction with the pressure plate to press and position the films according to different sizes, so that the cutting knife can be used to cut them.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for preparing polymer film tensile specimens, comprising a cutting table, the front and rear sides of the cutting table are fixedly connected with electric slide rails, the top sides of the two electric slide rails are slidably connected with a support frame, the bottom side of the middle end of the support frame is fixedly connected with an electric telescopic rod, the driving end of the electric telescopic rod is connected to a cutting knife through a plug-in assembly, the bottom side of the cutting table is connected with two sliders through a moving assembly, the top sides of the two sliders are connected with pressure plates through a telescopic assembly, and the left and right ends of the two pressure plates are connected to the sliders through locking assemblies.

[0007] Furthermore, the plug-in assembly includes a plug 1 located at the driving end of the electric telescopic rod, a spring 1 is sleeved on the outer wall of the plug 1, a plug 2 is fixedly connected to the top side of the cutting knife, and a lock shell is slidably connected to the outer wall of the bottom end of the plug 1.

[0008] Furthermore, the moving component includes a bidirectional threaded rod located at the right end of the cutting table, the right ends of the two sliders are threadedly connected to the outer wall of the bidirectional threaded rod, the left end of the cutting table is fixedly connected to a slide rod, and the left ends of the two sliders are slidably connected to the outer wall of the slide rod.

[0009] Furthermore, a motor is installed at the left end of the front side of the cutting table through a fixing frame, and the driving end of the motor is fixedly connected to the front end of the bidirectional threaded rod.

[0010] Furthermore, the telescopic assembly includes a sliding shell located on the outer wall of the slider, the pressing plate is slidably connected to the inside of the sliding shell, and the top side of the sliding shell and the pressing plate are connected via a second spring.

[0011] Furthermore, the locking assembly includes an insertion shaft located at the bottom end of the pressure plate, and a spring three is sleeved on the outer wall of the middle end of the insertion shaft.

[0012] Furthermore, four supporting columns are fixedly connected to the bottom side of the cutting table.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the cutting knife is removed from the electric telescopic rod by toggling the compression spring of the lock housing, and the replaced cutting knife is fixed on the electric telescopic rod through the engagement between the first plug and the second plug and the cooperation between the spring and the lock housing, so that different cutting knives can be replaced as needed.

[0015] 2. In the utility model, the two sliders are controlled to move toward each other by rotating the bidirectional threaded rod driven by a motor, and the film is pressed on the cutting table by the cooperation between the pressure plate and the spring, so that the distance between the pressure plates can be adjusted according to the film of different sizes, thereby improving the practicality of cutting films of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional view of a device for preparing a tensile specimen of a polymer film proposed by the present utility model;

[0017] Figure 2 is Figure 1 the enlarged view of part A in

[0018] Figure 3 A left view of a device for preparing a tensile specimen of a polymer film proposed by the present utility model;

[0019] Figure 4 A schematic diagram of the lock housing structure of a device for preparing a tensile specimen of a polymer film proposed by the present utility model.

[0020] Legend:

[0021] 1. Cutting table; 2. Electric slide rail; 3. Support frame; 4. Electric telescopic rod; 5. First spring; 6. Lock housing; 7. Cutting knife; 8. Pressing plate; 9. Bidirectional threaded rod; 10. Motor; 11. Slide block; 12. Slide housing; 13. Second spring; 14. Insertion shaft; 15. Third spring; 16. First plug; 17. Second plug. Specific implementation manner

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Referring to Figures 1-4 , an embodiment provided by the present utility model: A device for preparing a tensile specimen of a polymer film includes a cutting table 1. Electric slide rails 2 are fixedly connected to both the front and rear sides of the cutting table 1. A support frame 3 is slidably connected to the top sides of the two electric slide rails 2. An electric telescopic rod 4 is fixedly connected to the bottom side of the middle end of the support frame 3. The driving end of the electric telescopic rod 4 is connected to a cutting knife 7 through a lock housing 6. The bottom side of the cutting table 1 is connected to two slide blocks 11 through a bidirectional threaded rod 9. Pressing plates 8 are connected to the top sides of the two slide blocks 11 through slide housings 12. The left and right ends of the two pressing plates 8 are connected to the slide blocks 11 through insertion shafts 14. Four support columns are fixedly connected to the bottom side of the cutting table 1;

[0024] Specifically, place the polymer film to be prepared on the cutting table 1, and then start the motor 10 to drive the bidirectional threaded rod 9 to rotate, so as to control the sliding of the two sliders 11 on the sliding rod 18, and adjust the distance between the two pressing plates 8 according to the size requirements. Then, pull up the pressing plate 8 to compress the second spring 13 between the pressing plate 8 and the sliding shell 12, and press the edge of the film between the pressing plate 8 and the cutting table 1. When the second spring 13 resets, press the pressing plate 8 on the cutting table 1. Then, insert the insertion shaft 14 into the bottom end of the pressing plate 8 to fix the pressing plate 8 on the slider 11, and press the film on the cutting table 1. Then, drive the support frame 3 to move through the electric slide rail 2 to cut and prepare the polymer film. Adjust the distance between the two pressing plates 8 according to the films of different sizes to fix different polymer films, which is convenient for improving the practicability of polymer film preparation. At the same time, the lock shell 6 can be pulled up to compress the first spring 5 so that the lock shell 6 disengages from the connection between the first plug 16 and the second plug 17, which is convenient for disassembling the cutting knife 7. Then, through the engagement between the first plug 16 and the second plug 17, and the cooperation between the lock shell 6 and the first spring 5, the lock shell 6 is clamped at the connection between the first plug 16 and the second plug 17, and the cutting knife 7 is fixed on the electric telescopic rod 4, so as to replace the cutting knife 7 according to the requirements, meet the requirement of replacing the cutting knife 7 according to the cutting needs, and be convenient for improving the working efficiency of polymer film preparation.

[0025] The first plug 16 is located at the driving end of the electric telescopic rod 4. The outer wall of the first plug 16 is sleeved with the first spring 5. The top side of the cutting knife 7 is fixedly connected with the second plug 17. The outer wall of the bottom end of the first plug 16 is slidably connected with the lock shell 6. The bidirectional threaded rod 9 is located at the right end of the cutting table 1. The right ends of the two sliders 11 are both threadedly connected to the outer wall of the bidirectional threaded rod 9. The left end of the cutting table 1 is fixedly connected with the sliding rod 18. The left ends of the two sliders 11 are both slidably connected to the outer wall of the sliding rod 18. The motor 10 is installed on the front side left end of the cutting table 1 through a fixing frame. The driving end of the motor 10 is fixedly connected to the front end of the bidirectional threaded rod 9. The sliding shell 12 is located on the outer wall of the slider 11. The pressing plate 8 is slidably connected inside the sliding shell 12. The top side of the sliding shell 12 and the pressing plate 8 are connected by the second spring 13. The insertion shaft 14 is located at the bottom end of the pressing plate 8. The middle outer wall of the insertion shaft 14 is sleeved with the third spring 15;

[0026] Specifically, through the cooperation between the pressing plate 8 and the sliding shell 12 by the upward-pulling pressing plate 8, the two ends of the pressing plate 8 slide inside the sliding shell 12, so as to press the edge of the film between the pressing plate 8 and the cutting table 1. The pressing plate 8 is pressed on the cutting table 1 by the reset of the second spring 13. Then, by inserting the insertion shaft 14 into the bottom end of the pressing plate 8, the pressing plate 8 is fixed on the sliding block 11, and the film is pressed on the cutting table 1. According to films of different sizes, the motor 10 is started to drive the bidirectional threaded rod 9 to rotate, so as to drive the two sliding blocks 11 to slide on the sliding rod 18, and the distance between the two pressing plates 8 is adjusted to fix different polymer films, which is convenient for improving the practicability of polymer film preparation. At the same time, the lock shell 6 can be pulled upward to compress the first spring 5, so that the lock shell 6 is disengaged from the connection between the first plug 16 and the second plug 17, which is convenient for disassembling the cutting knife 7. Then, through the engagement between the first plug 16 and the second plug 17, and the cooperation between the lock shell 6 and the first spring 5, the lock shell 6 is clamped at the connection between the first plug 16 and the second plug 17, and the cutting knife 7 is fixed on the electric telescopic rod 4, so as to replace the cutting knife 7 as required, which is convenient for improving the preparation efficiency of polymer film stretching.

[0027] Working principle: Place the polymer film to be prepared on the cutting table 1, and then start the motor 10 to drive the bidirectional threaded rod 9 to rotate, so as to control the sliding of the two sliding blocks 11 on the sliding rod 18, and adjust the distance between the two pressing plates 8 according to the size requirements. Then, through the cooperation between the pressing plate 8 and the sliding shell 12 by the upward-pulling pressing plate 8, the two ends of the pressing plate 8 slide inside the sliding shell 12, so as to press the edge of the film between the pressing plate 8 and the cutting table 1. The pressing plate 8 is pressed on the cutting table 1 by the reset of the second spring 13. Then, by inserting the insertion shaft 14 into the bottom end of the pressing plate 8, the pressing plate 8 is fixed on the sliding block 11, and the film is pressed on the cutting table 1. According to films of different sizes, the distance between the two pressing plates 8 is adjusted, which is convenient for improving the practicability of polymer film preparation. At the same time, the lock shell 6 can be pulled upward to compress the first spring 5, so that the lock shell 6 is disengaged from the connection between the first plug 16 and the second plug 17, which is convenient for disassembling the cutting knife 7. Then, through the engagement between the first plug 16 and the second plug 17, and the cooperation between the lock shell 6 and the first spring 5, the lock shell 6 is clamped at the connection between the first plug 16 and the second plug 17, and the cutting knife 7 is fixed on the electric telescopic rod 4, so as to replace the cutting knife 7 as required, meeting the requirement of replacing the cutting knife 7 according to the cutting demand, which is convenient for improving the working efficiency of polymer film preparation.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A device for preparing a polymer film tensile specimen, comprising a cutting table (1), characterized in that: The cutting table (1) is fixedly connected to electric slide rails (2) on both the front and rear sides; the top sides of the two electric slide rails (2) are slidably connected to a support frame (3); the bottom side of the middle end of the support frame (3) is fixedly connected to an electric telescopic rod (4); the driving end of the electric telescopic rod (4) is connected to a cutting knife (7) via a plug-in component; the bottom side of the cutting table (1) is connected to two sliders (11) via a moving component; the top sides of the two sliders (11) are connected to a pressing plate (8) via a telescopic component; and the left and right ends of the two pressing plates (8) are connected to the slider (11) via a locking component.

2. The device for preparing a polymer film tensile specimen according to claim 1, characterized in that: The plug-in assembly comprises a plug one (16) located at the driving end of the electric telescopic rod (4), the outer wall of the plug one (16) is sleeved with a spring one (5), the top side of the cutting knife (7) is fixedly connected to a plug two (17), and the outer wall of the bottom end of the plug one (16) is slidably connected to a lock shell (6).

3. The device for preparing a polymer film tensile specimen according to claim 1, characterized in that: The moving assembly comprises a bidirectional threaded rod (9) located at the right end of the cutting table (1), the right ends of the two sliders (11) are both threadedly connected to the outer wall of the bidirectional threaded rod (9), the left end of the cutting table (1) is fixedly connected to a slide rod (18), and the left ends of the two sliders (11) are both slidably connected to the outer wall of the slide rod (18).

4. The device for preparing a polymer film tensile specimen according to claim 3, characterized in that: A motor (10) is installed at the left front end of the cutting table (1) via a fixing frame, and a driving end of the motor (10) is fixedly connected to the front end of the bidirectional threaded rod (9).

5. The device for preparing a polymer film tensile specimen according to claim 1, characterized in that: The telescopic assembly comprises a sliding shell (12) located on the outer wall of a sliding block (11); the pressing plate (8) is slidably connected inside the sliding shell (12); and the top side of the sliding shell (12) and the pressing plate (8) are connected via a second spring (13).

6. The device for preparing a polymer film tensile specimen according to claim 1, characterized in that: The locking assembly comprises an insertion shaft (14) located at the bottom end of the pressure plate (8), and a spring three (15) is sleeved on the outer wall of the middle end of the insertion shaft (14).

7. The device for preparing a polymer film tensile specimen according to claim 1, characterized in that: Four supporting columns are fixedly connected to the bottom side of the cutting table (1).

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