Plastic tension tester

Abstract

The utility model discloses a plastic tension tester, which belongs to the technical field of plastic testing, and comprises a U-shaped workbench, rectangular lifting plates are arranged at the top and the bottom in the U-shaped workbench, a partition block is fixed on one side of each rectangular lifting plate, and the partition blocks are fixed on the other side of the U-shaped workbench. Rotatable rectangular clamping plates are arranged on the two sides of the top of the partition block, a rotating mechanism used for rotating the two rectangular clamping plates is arranged on the side, away from the partition block, of the rectangular lifting plate, an arc-shaped supporting column is fixed to the side, away from the rectangular lifting plate, of the U-shaped workbench, and a double-outlet-rod hydraulic cylinder is fixed into the arc-shaped supporting column; through rotation of the two rectangular clamping plates, the plastic films at the two ends of the separation block can be clamped at the same time, and then the device can conduct tension testing on two sets of samples at the same time, so that the testing efficiency is improved, and the accuracy of the testing result is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of plastic testing technology, specifically relating to a plastic tensile tester. Background Technology

[0002] Plastic is a material composed of synthetic or natural polymers (such as polymers). It is lightweight, corrosion-resistant, and highly malleable, and is widely used in various fields. With the advancement of technology, the application range of plastics continues to expand. From household goods and packaging materials to automobiles and electronic products, it can be found everywhere. Among the many plastic products, plastic film, as a thin and soft film material, has been widely used due to its unique properties.

[0003] In the production process of plastic film, the tensile properties of plastic film have become an important indicator for evaluating its quality and application performance. Tensile testers, as one of the commonly used testing equipment, are widely used in the tensile property testing of materials such as plastic film, fiber, and paper.

[0004] Currently, most existing plastic tensile testers use a single clamping method, meaning that only one tension block or clamping block performs tensile testing on the sample. This results in only one set of samples being tested at a time, leading to relatively low testing efficiency. Furthermore, uneven sample clamping during the tensile test, or limitations in the design of the clamping block, may cause deviations in the test results, thus affecting the accuracy and reliability of the tensile test. To address these issues, we have designed a plastic tensile tester to provide an alternative technical solution. Summary of the Invention

[0005] The purpose of this invention is to provide a plastic tensile testing instrument to solve the problems mentioned in the background section regarding the use of existing technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a plastic tensile testing instrument, comprising a U-shaped worktable, wherein rectangular lifting plates are provided at the top and bottom of the U-shaped worktable, a partition block is fixed on one side of the rectangular lifting plate, and rotatable rectangular clamping plates are provided on both sides of the top of the partition block, and a rotating mechanism for rotating the two rectangular clamping plates is provided on the side of the rectangular lifting plate away from the partition block.

[0007] Preferably, an arc-shaped support column is fixed on the side of the U-shaped worktable away from the rectangular lifting plate, and a double-rod hydraulic cylinder is fixed inside the arc-shaped support column. Both output ends of the double-rod hydraulic cylinder are fixed with a transverse connecting plate, and the transverse connecting plate is fixed to the side of the rectangular lifting plate.

[0008] Preferably, the U-shaped workbench has a vertical groove inside, and the horizontal connecting plate is located inside the vertical groove and is slidably connected to the U-shaped workbench through the vertical groove.

[0009] Preferably, the rotating mechanism includes a U-shaped fixing frame, one end of which is bolted to a drive motor. The output end of the drive motor is fixed to a first transverse threaded rod, and the end of the first transverse threaded rod away from the drive motor is fixed to a second transverse threaded rod. The threads of the first and second transverse threaded rods have opposite directions. Both the outer sides of the first and second transverse threaded rods are threaded to transverse sliding plates. The bottom of the transverse sliding plate is rotatably connected to an oblique rotating column, and the bottom of the oblique rotating column is rotatably connected to a rectangular rotating column. The top of the rectangular rotating column is fixed to a longitudinal rotating column, which is located near the rectangular clamping plate and is fixedly connected to the rectangular clamping plate.

[0010] Preferably, the longitudinal rotating column penetrates the interior of the rectangular lifting plate and is rotatably connected to the rectangular lifting plate via a bearing.

[0011] Preferably, a dovetail slider is fixed to the top of the transverse sliding plate, and a dovetail groove is provided inside the U-shaped fixing frame. The U-shaped fixing frame and the transverse sliding plate are slidably connected by the dovetail slider and the dovetail groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention, through a series of designs, utilizes the rotation of two rectangular clamping plates to simultaneously clamp the plastic films at both ends of the separator, thereby enabling the device to perform tensile tests on two sets of samples simultaneously, thus improving testing efficiency and ensuring the accuracy of test results. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the double-rod hydraulic cylinder and the transverse connecting plate of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the U-shaped workbench of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the first transverse threaded rod and the second transverse threaded rod of this utility model;

[0018] Figure 5 This is a schematic diagram of the oblique rotating column and the rectangular rotating column of this utility model.

[0019] In the diagram: 1. U-shaped worktable; 2. Rectangular lifting plate; 3. Divider block; 4. Rectangular clamping plate; 5. Double-rod hydraulic cylinder; 6. Horizontal connecting plate; 7. Arc-shaped support column; 8. U-shaped fixing frame; 9. Drive motor; 10. First horizontal threaded rod; 11. Second horizontal threaded rod; 12. Horizontal sliding plate; 13. Inclined rotating column; 14. Rectangular rotating column; 15. Longitudinal rotating column. Detailed Implementation

[0020] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Reference Figure 1-5 A plastic tensile tester includes a U-shaped worktable 1. A rectangular lifting plate 2 is provided at the top and bottom of the U-shaped worktable 1. A partition block 3 is fixed on one side of the rectangular lifting plate 2. Rotatable rectangular clamping plates 4 are provided on both sides of the top of the partition block 3. A rotation mechanism for rotating the two rectangular clamping plates 4 is provided on the side of the rectangular lifting plate 2 away from the partition block 3.

[0022] An arc-shaped support column 7 is fixed on the side of the U-shaped worktable 1 away from the rectangular lifting plate 2. A double-outlet hydraulic cylinder 5 is fixed inside the arc-shaped support column 7. A horizontal connecting plate 6 is fixed to both output ends of the double-outlet hydraulic cylinder 5. The horizontal connecting plate 6 is close to the side of the rectangular lifting plate 2 and is fixedly connected to the rectangular lifting plate 2. Through the operation of the double-outlet hydraulic cylinder 5, the horizontal connecting plate 6 can be vertically lifted and lowered inside the U-shaped worktable 1, thereby enabling the rectangular lifting plate 2 to drive the partition block 3 to be vertically lifted and lowered.

[0023] The U-shaped worktable 1 has a vertical slide groove inside. The horizontal connecting plate 6 is located inside the vertical slide groove and is slidably connected to the U-shaped worktable 1 through the vertical slide groove. The setting of the vertical slide groove allows the horizontal connecting plate 6 to slide vertically inside the U-shaped worktable 1, so that the horizontal connecting plate 6 can drive the rectangular lifting plate 2 to move vertically up and down.

[0024] Here, the operation of the double-outlet hydraulic cylinder 5 enables the two transverse connecting plates 6 to move in opposite directions, thereby causing the two rectangular lifting plates 2 to move in opposite directions. The movement of the two rectangular lifting plates 2 enables the partition block 3 to move, thereby enabling the two sets of plastic films at both ends of the partition block 3 to be subjected to tension detection.

[0025] The rotating mechanism includes a U-shaped fixing frame 8, a drive motor 9 is bolted to one end of the U-shaped fixing frame 8, a first transverse threaded rod 10 is fixed to the output end of the drive motor 9, a second transverse threaded rod 11 is fixed to the end of the first transverse threaded rod 10 away from the drive motor 9, the threads of the first transverse threaded rod 10 and the second transverse threaded rod 11 are opposite in direction, a transverse sliding plate 12 is threaded to the outer side of both the first transverse threaded rod 10 and the second transverse threaded rod 11, an oblique rotating column 13 is rotatably connected to the bottom of the transverse sliding plate 12, a rectangular rotating column 14 is rotatably connected to the bottom of the oblique rotating column 13, a longitudinal rotating column 15 is fixed inside the top of the rectangular rotating column 14, and the longitudinal rotating column 15 is fixed to the side of the rectangular clamping plate 4 near the rectangular clamping plate 4;

[0026] The longitudinal rotating column 15 passes through the interior of the rectangular lifting plate 2 and is rotatably connected to the rectangular lifting plate 2 through a bearing, thereby enabling the longitudinal rotating column 15 to rotate inside the rectangular lifting plate 2 and to rotate in the rectangular clamping plate 4, so that the plastic film can be fixed between the partition block 3 and the rectangular clamping plate 4.

[0027] A dovetail slider is fixed to the top of the horizontal sliding plate 12, and a dovetail groove is provided inside the U-shaped fixing frame 8. The U-shaped fixing frame 8 and the horizontal sliding plate 12 are slidably connected by the dovetail slider and the dovetail groove. The dovetail slider and the dovetail groove allow the horizontal sliding plate 12 to slide horizontally inside the U-shaped fixing frame 8, thereby guiding the movement trajectory of the horizontal sliding plate 12.

[0028] Here, the operation of the drive motor 9 enables the first transverse threaded rod 10 and the second transverse threaded rod 11 to rotate. By setting the threads of the first transverse threaded rod 10 and the second transverse threaded rod 11 to have opposite directions, the two transverse sliding plates 12 can move in opposite directions. The movement of the transverse sliding plates 12 causes the rectangular rotating column 14 to drive the longitudinal rotating column 15 to rotate inside the rectangular lifting plate 2 via the oblique rotating column 13, thereby enabling the rectangular clamping plate 4 to rotate. When the rectangular clamping plate 4 is in contact with the partition block 3, the plastic film can be clamped for subsequent tensile testing.

[0029] Through a series of designs, the plastic films at both ends of the separator 3 can be clamped simultaneously by rotating the two rectangular clamping plates 4. This allows the device to perform tensile tests on two sets of samples at the same time, thereby improving testing efficiency and ensuring the accuracy of test results.

[0030] Working principle: The operation of the drive motor 9 enables the first transverse threaded rod 10 and the second transverse threaded rod 11 to rotate. By setting the threads of the first transverse threaded rod 10 and the second transverse threaded rod 11 to be opposite, the two transverse sliding plates 12 can move in opposite directions. The movement of the transverse sliding plates 12 causes the oblique rotating column 13 to drive the rectangular rotating column 14 to drive the longitudinal rotating column 15 to rotate inside the rectangular lifting plate 2, thereby enabling the rectangular clamping plate 4 to rotate. When the rectangular clamping plate 4 is in contact with the partition block 3, the plastic film can be clamped for subsequent tensile force detection.

[0031] The operation of the double-outlet hydraulic cylinder 5 enables the two transverse connecting plates 6 to move in opposite directions, thereby causing the two rectangular lifting plates 2 to move in opposite directions. The movement of the two rectangular lifting plates 2 enables the separating block 3 to move. When the two rectangular clamping plates 4 clamp the plastic film at both ends of the separating block 3, the operation of the double-outlet hydraulic cylinder 5 enables the two sets of plastic films to be tested for tension.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic tensile tester characterized by: The utility model provides a kind of U-shaped workbench (1), the top and bottom inside U-shaped workbench (1) are provided with rectangular lifting plate (2), one side of rectangular lifting plate (2) is fixed with partition block (3), both sides of the top of partition block (3) are provided with rotatable rectangular clamping plate (4), the side of rectangular lifting plate (2) away from partition block (3) is provided with rotating mechanism for the rotation of two rectangular clamping plate (4).

2. The plastic tensile testing machine of claim 1, wherein: The side of the U-shaped workbench (1) away from the rectangular lifting plate (2) is fixed with an arc-shaped support column (7), the inside of the arc-shaped support column (7) is fixed with a double-output rod hydraulic cylinder (5), both output ends of the double-output rod hydraulic cylinder (5) are fixed with a transverse connecting plate (6), the side of the transverse connecting plate (6) close to the rectangular lifting plate (2) is fixedly connected with the rectangular lifting plate (2).

3. A plastic tensile testing machine according to claim 2, wherein: The inside of the U-shaped workbench (1) is provided with a vertical sliding groove, the transverse connecting plate (6) is located inside the vertical sliding groove and is slidingly connected with the U-shaped workbench (1) through the vertical sliding groove.

4. The plastic tensile testing machine of claim 1, wherein: The rotating mechanism includes a U-shaped fixing frame (8), one end of the U-shaped fixing frame (8) is bolted with a driving motor (9), the output end of the driving motor (9) is fixed with a first transverse threaded rod (10), one end of the first transverse threaded rod (10) away from the driving motor (9) is fixed with a second transverse threaded rod (11), the screw thread rotation directions of the first transverse threaded rod (10) and the second transverse threaded rod (11) are opposite, the outer sides of the first transverse threaded rod (10) and the second transverse threaded rod (11) are threadedly connected with a transverse sliding plate (12), the bottom of the transverse sliding plate (12) is rotatably connected with an oblique rotating column (13), the bottom of the oblique rotating column (13) is rotatably connected with a rectangular rotating column (14), the inside of the top end of the rectangular rotating column (14) is fixed with a longitudinal rotating column (15), the side of the longitudinal rotating column (15) close to the rectangular clamping plate (4) is fixedly connected with the rectangular clamping plate (4).

5. A plastic tensile testing machine according to claim 4, wherein: The longitudinal rotating column (15) penetrates the inside of the rectangular lifting plate (2) and is rotatably connected with the rectangular lifting plate (2) through a bearing.

6. A plastic tensile testing machine according to claim 4, wherein: The top of the transverse sliding plate (12) is fixed with a dovetail sliding block, the inside of the U-shaped fixing frame (8) is provided with a dovetail sliding groove, and the U-shaped fixing frame (8) and the transverse sliding plate (12) are slidingly connected through the dovetail sliding block and the dovetail sliding groove.

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