Fiber orientation degree sample preparation device

Abstract

The utility model relates to the technical field of fiber orientation degree measurement, in particular to a fiber orientation degree sample preparation device which comprises a fiber support, a fiber track is arranged in the middle of the fiber support, supports are symmetrically and fixedly connected to the two sides of the fiber support, a ray hole is formed in the middle of the fiber support, and cover plates are installed on the supports on the two sides. First threaded holes are formed in the two ends of the cover plate, second threaded holes matched with the first threaded holes are formed in the two sides of the top end of the support, the cover plate and the support are connected and fixed through fixing bolts, and the fixing bolts are matched with the first threaded holes and the second threaded holes. According to the utility model, the fiber tension can be conveniently controlled, the operation repeatability is high, and the consistency of measurement results is kept; in addition, the sample cannot be damaged in the sample preparation process, the sample can be reused, and the cost is saved.

Description

Technical Field

[0001] The utility model patent relates to the technical field of fiber orientation measurement, and specifically, to a fiber orientation sample preparation device. Background Art

[0002] Fiber orientation is an important indicator to measure the degree of fiber orientation. The degree of orientation directly affects the mechanical properties of the fiber. Currently, the more common instrument for testing fiber orientation is the X-ray diffractometer, and the sample preparation device used for the X-ray diffractometer mostly adopts a simple "U"-shaped sample frame with a hollow middle. This method will affect the tension of the fiber due to the lack of firm fixation, causing unnecessary errors.

[0003] The Chinese invention patent application with the publication number CN214668715U discloses a fiber orientation test device, which can firmly fix the fiber on the bracket and will not damage the sample during the sample preparation process. However, this device cannot control the tension applied to the fiber, which is still prone to operational errors. At the same time, repeatedly winding the fiber on the bracket is still prone to damage the fiber. Utility Model Content

[0004] The utility model aims to provide a fiber orientation sample preparation device, aiming to solve the problem that the existing device cannot control the tension applied to the fiber, still easily causes operational errors, and the fiber is still easily damaged when it is repeatedly wound on the bracket.

[0005] The utility model is implemented as follows: it includes a fiber support, a fiber track is arranged in the middle of the fiber support, brackets are symmetrically fixedly connected on both sides of the fiber support, a ray hole is arranged in the middle of the fiber support, cover plates are installed on the brackets on both sides, threaded hole one is opened at both ends of the cover plate, threaded hole one and threaded hole two matching with threaded hole one are opened on both sides of the top of the bracket, the cover plate and the bracket are connected and fixed by fixing bolts, and the fixing bolts are adapted to threaded hole one and threaded hole two.

[0006] Furthermore, a polyurethane layer is coated on the middle portion of the cover plate.

[0007] Furthermore, the top end of the bracket is arranged to be inclined.

[0008] Furthermore, the edge of the fiber support is an arc structure.

[0009] Furthermore, the fiber track is a rectangular groove.

[0010] Furthermore, the ray hole is a circular through hole.

[0011] Furthermore, an indicator mark is pasted on the surface of the fixing bolt, and scale marking points are arranged on the bracket and located on the outer periphery of the second threaded hole.

[0012] Compared with the prior art, the utility model is convenient for controlling the fiber tension, has high operation repeatability, and maintains the consistency of the measurement results; the sample will not be damaged during the sample preparation process, and the sample can be reused, saving costs. The sample preparation device has the advantages of controllable tension applied to the fiber, high operation repeatability, and simple sample preparation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the fiber orientation sample preparation device provided by the utility model;

[0014] Figure 2 It is a structural schematic diagram of a cover plate and a polyurethane layer of a fiber orientation sample preparation device provided by the utility model;

[0015] Figure 3 It is a structural schematic diagram of a bracket of a fiber orientation sample preparation device provided by the utility model;

[0016] Figure 4 The utility model provides a fiber orientation sample preparation device. Figure 1 A schematic diagram of the enlarged structure of .

[0017] The figure marks involved in the above drawings are: 1. fiber support; 2. bracket; 3. cover plate; 4. fiber track; 5. ray hole; 6. polyurethane layer; 7. threaded hole one; 8. fixing bolt; 9. threaded hole two; 10. indicator mark; 11. scale mark point. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] The following is a detailed description of the implementation of the utility model in combination with a specific embodiment, including a fiber support 1, a fiber track 4 is arranged in the middle of the fiber support 1, a bracket 2 is symmetrically fixedly connected on both sides of the fiber support 1, a ray hole 5 is arranged in the middle of the fiber support 1, a cover plate 3 is installed on the bracket 2 on both sides, a threaded hole 7 is opened at both ends of the cover plate 3, and a threaded hole 2 9 matching the threaded hole 7 is opened on both sides of the top of the bracket 2, the cover plate 3 and the bracket 2 are connected and fixed by a fixing bolt 8, and the fixing bolt 8 is adapted to the threaded hole 1 7 and the threaded hole 2 9; when working, when using, first remove the cover plate 3, lay the fiber on the fiber track 4, ensure that the fiber covers the ray hole 5, and then put the cover plate 3 on the bracket 2 so that the polyurethane is fully in contact with the fiber, align the fixing bolt 8 with the threaded hole, and screw it down the same number of times. Since the fiber support 1 is symmetrical, the fixing bolt 8 on the cover plate 3 on the other side is screwed the same number of times, and the sample support is placed in the instrument for testing. After the test is completed, loosen the fixing bolt 8, and take out the fiber when it is relaxed. Repeated testing ensures that the fiber is subjected to the same tension each time, maintaining consistency in the measurement results.

[0020] The middle part of the cover plate 3 is coated with a polyurethane layer 6; when working, the coating thickness of the polyurethane layer 6 is set to 1-2 mm for the best, which can better achieve the fixation and stretching of the fibers and protect the fiber bundles from burrs.

[0021] The top of the support 2 is arranged to be inclined so that the fibers can be smoothly placed on the support 2 during operation.

[0022] The edge of the fiber holder 1 is an arc structure, so that the fiber can be loaded into the instrument during operation.

[0023] The fiber track 4 is a rectangular groove.

[0024] The ray hole 5 is a circular through hole; when working, the diameter of the ray hole 5 is slightly smaller than the fiber track 4 to ensure that the fiber can completely cover the ray hole 5.

[0025] An indicator mark 10 is pasted on the surface of the fixing bolt 8, and a scale mark point 11 is set on the bracket 2 and located outside the threaded hole 29; during operation, in the process of rotating the fixing bolt 8, the indicator mark 10 is compared with the scale mark point 11, so that the number of turns of the fixing bolt 8 can be more accurately determined, so that the fixing bolts 8 on both sides can be rotated the same number of times, ensuring that the fiber is subjected to the same tension each time, and maintaining the consistency of the measurement results.

[0026] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] Reference Figure 1-4 As shown, it is a preferred embodiment provided by the utility model.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fiber orientation sample preparation device, characterized in that: The invention comprises a fiber support (1), wherein a fiber track (4) is arranged in the middle of the fiber support (1), brackets (2) are symmetrically fixedly connected to the two sides of the fiber support (1), a ray hole (5) is arranged in the middle of the fiber support (1), and cover plates (3) are installed on the brackets (2) on both sides, threaded holes (7) are provided at both ends of the cover plates (3), threaded holes (9) matching the threaded holes (7) are provided on both sides of the top of the bracket (2), and the cover plates (3) and the bracket (2) are connected and fixed by fixing bolts (8), and the fixing bolts (8) are adapted to the threaded holes (7) and the threaded holes (9).

2. The fiber orientation sample preparation device according to claim 1, characterized in that: The middle part of the cover plate (3) is coated with a polyurethane layer (6).

3. The fiber orientation sample preparation device according to claim 2, characterized in that: The top end of the bracket (2) is arranged in an inclined shape.

4. The fiber orientation sample preparation device according to claim 3, characterized in that: The edge of the fiber support (1) is an arc structure.

5. The fiber orientation sample preparation device according to claim 4, characterized in that: The fiber track (4) is a rectangular groove.

6. The fiber orientation sample preparation device according to claim 5, characterized in that: The ray hole (5) is a circular through hole.

7. The fiber orientation sample preparation device according to claim 6, characterized in that: An indication mark (10) is pasted on the surface of the fixing bolt (8), and a scale mark point (11) is arranged on the bracket (2) and located outside the second threaded hole (9).

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