Convenient, reliable and economical carbon fiber multifilament manual impregnation sample preparation device

Abstract

The utility model discloses a convenient, reliable and economical carbon fiber multifilament manual gum dipping and sample preparation device, which relates to the technical field of gum dipping and sample preparation devices and comprises a sliding mechanism, the sliding mechanism comprises a guide rail, two sides of the guide rail are connected with sliding blocks in a sliding manner, the sliding blocks can be fixed at any position of the guide rail through locking knobs, and the sliding blocks are fixed on the guide rail through the locking knobs. A bottom plate is arranged at the top of the sliding block, and a fiber multifilament fixing mechanism is fixedly connected to the top of the bottom plate; the fiber multifilament fixing mechanism comprises two triangular support plates, the two triangular support plates are of a plane symmetry structure, the two triangular support plates are fixed to the bottom plate through bolts, three winding shafts are arranged at the front ends of the triangular support plates, and the rear portions of the triangular support plates are designed to be of an L-shaped structure. According to the utility model, the difficulty of manual sample preparation is reduced, the sample preparation quality is improved, and the rejection rate is greatly reduced, so that the sample preparation efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the technical field of resin impregnation and sample preparation devices, and in particular to a convenient, reliable and economical manual resin impregnation and sample preparation device for carbon fiber multifilament. Background Technology

[0002] Carbon fiber refers to carbon fiber bundles composed of individual carbon fiber filaments, also known as carbon fiber multifilaments. Based on the number of individual carbon fiber filaments, carbon fiber can be divided into large-tow carbon fiber and small-tow carbon fiber. Generally, carbon fiber multifilaments with more than 48,000 carbon fibers per bundle are called large-tow carbon fiber.

[0003] In the production of carbon fiber multifilament, a resin impregnation and sample preparation device is required. When the carbon fiber multifilament is tensioned in the existing resin impregnation and sample preparation device, if the constraint force on the monofilament is uneven, or even if some monofilaments are not constrained, some monofilaments will slip off. During resin impregnation, this manifests as local fiber filament scattering, which in turn affects the overall strength of the multifilament and leads to large errors or inaccuracies in the test results. Therefore, there is room for improvement. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a convenient, reliable, and economical manual impregnation and sample preparation device for carbon fiber multifilaments. Its advantages include reducing the difficulty of manual sample preparation, improving sample quality, and significantly reducing the scrap rate, thus achieving high sample preparation efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A convenient, reliable and economical manual impregnation sample preparation device for carbon fiber multifilament includes a sliding mechanism. The sliding mechanism includes a guide rail, and sliders are slidably connected to both sides of the guide rail. The sliders can be fixed at any position on the guide rail by a locking knob. A base plate is provided on the top of the sliders, and a fiber multifilament fixing mechanism is fixedly connected to the top of the base plate.

[0007] The fiber multifilament fixing mechanism includes two triangular support plates, which are symmetrical in structure. The two triangular support plates are fixed to the base plate by bolts. Three winding shafts are provided at the front end of the triangular support plates. The rear part of the triangular support plates is designed in an L-shape. A threaded hole is provided at the top of the triangular support plates. A locking knob is connected to the inner wall of the threaded hole by a thread. A pressure block is provided at the bottom of the locking knob.

[0008] The present invention is further configured such that the top of the two triangular support plates is provided with the same fiber multifilament pressing mechanism; the fiber multifilament pressing mechanism includes a crane-shaped pressing arm, and the front end of the crane-shaped pressing arm is provided with two pressing heads, the end face of the pressing head cooperating with the winding shaft.

[0009] This invention is further configured such that the rear end of the crane-shaped pressure arm has a cylindrical protruding structure that inserts into the circular hole of the two triangular support plate assemblies. A through hole is provided within the cylindrical structure at the rear end of the crane-shaped pressure arm, into which a pressure arm knob is inserted. The pressure arm knob passes through the pressure arm spring and the crane-shaped pressure arm, connecting to the base plate. Rotating the pressure arm knob compresses the pressure arm spring to obtain appropriate pressure, ensuring a tight seal between the pressure head and the winding shaft, preventing the multifilament fibers from slipping off the winding shaft.

[0010] The present invention is further provided with a buffer layer on the lower surface of the pressing block and the upper surface of the triangular support plate, the buffer layer being made of rubber. The buffer layer provides a good cushioning effect during the pressing process, preventing damage to the fiber multifilaments.

[0011] The present invention is further provided with an anti-slip ridge at the bottom of the pressing block, the anti-slip ridge having a rounded arc structure. The anti-slip ridge increases the friction between the pressing block and the fiber multifilament, thereby improving the stability of the fixation.

[0012] The present invention is further configured such that the bottom end of the pressure head has an arc-shaped structure. This arc-shaped bottom end design allows the pressure head to fully contact the inner wall of the winding shaft, further improving the fixation effect of the fiber multifilaments.

[0013] The beneficial effects of this utility model are as follows: This convenient, reliable, and economical manual impregnation sample preparation device for carbon fiber multifilaments effectively fixes the sample, avoids monofilament breakage and fraying, significantly reduces hand contact with the multifilaments, greatly improves the quality of sample preparation, and maintains stable quality. On the one hand, the sample length can be adjusted as needed, and on the other hand, it is also suitable for situations with less impregnation solution, making it very suitable for laboratory settings and other scenarios requiring small-volume sample preparation. It reduces the difficulty of manual sample preparation, improves sample quality, and greatly reduces the scrap rate, thus possessing high sample preparation efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a convenient, reliable, and economical manual impregnation and sample preparation device for carbon fiber multifilament proposed in this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of a convenient, reliable and economical manual impregnation and sample preparation device for carbon fiber multifilament proposed in this utility model.

[0016] Figure 3 This is a schematic diagram of the structure of a convenient, reliable and economical manual impregnation sample preparation device for carbon fiber multifilament proposed in this utility model.

[0017] In the diagram: 1. Guide rail; 2. Slider; 3. Locking knob; 4. Base plate; 5. Triangular support plate; 6. Pressure block; 7. Locking knob; 8. Winding shaft; 9. Crane-type pressure arm; 10. Pressure head; 11. Pressure arm knob; 12. Pressure arm spring. Detailed Implementation

[0018] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0019] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0020] Reference Figure 1-3 A convenient, reliable and economical manual impregnation sample preparation device for carbon fiber multifilament includes a sliding mechanism. The sliding mechanism includes a guide rail 1, and sliders 2 are slidably connected to both sides of the guide rail 1. The sliders 2 can be fixed at any position on the guide rail 1 by locking knobs 3. A base plate 4 is provided on the top of the sliders 2, and a fiber multifilament fixing mechanism is fixedly connected to the top of the base plate 4.

[0021] The fiber multifilament fixing mechanism includes two triangular support plates 5, which are symmetrical in structure and fixed to the base plate 4 by bolts. Three winding shafts 8 are provided at the front end of the triangular support plates 5, and the rear part of the triangular support plates 5 is designed in an L-shape. A threaded hole is provided at the top of the triangular support plates 5, and a locking knob 7 is connected to the inner wall of the threaded hole by a thread. A pressure block 6 is provided at the bottom of the locking knob 7.

[0022] In this embodiment, the top of the two triangular support plates 5 is provided with the same fiber multifilament pressing mechanism; the fiber multifilament pressing mechanism includes a crane-shaped pressing arm 9, the front end of which is provided with two pressing heads 10, the end face of which cooperates with the winding shaft 8; the rear end of the crane-shaped pressing arm 9 is designed with a cylindrical protruding structure that is inserted into the circular hole of the two triangular support plates 5 assembly, and a through hole is opened in the cylindrical structure at the rear end of the crane-shaped pressing arm 9. The pressing arm knob 11 is inserted into the through hole, and the pressing arm knob 11 passes through the pressing arm spring 12 and the crane-shaped pressing arm 9 and is connected to the base plate 4. By rotating the pressing arm knob 11, the pressing arm spring 12 is compressed to obtain appropriate pressure, so that the pressing head 10 is tightly pressed with the winding shaft 8, preventing the fiber multifilament from slipping off the winding shaft 8; the bottom end of the pressing head 10 is an arc-shaped structure. The arc-shaped structure design of the bottom end allows the pressing head 10 to fully contact the inner wall of the winding shaft 8, further improving the fixing effect of the fiber multifilament.

[0023] It is worth mentioning that the lower surface of the pressure block 6 and the upper surface of the triangular support plate 5 are both provided with a buffer layer. The buffer layer is made of rubber and plays a good buffering role during the pressing process to prevent damage to the fiber multifilament. The bottom of the pressure block 6 is provided with an anti-slip ridge. The anti-slip ridge has an inverted arc structure. The anti-slip ridge can increase the friction between the pressure block 6 and the fiber multifilament and improve the stability of the fixation.

[0024] Working principle: Based on the required sample length, move the slider 2, the fixing mechanism, and the clamping mechanism assembly to a suitable position, and tighten the locking knob 3 to fix the position; lift the clamping mechanisms at both ends and rotate them 180°; place one end of the carbon fiber multifilament sample on the upper surface of the L-shaped structure of the triangular support plate 5, and turn the locking knob 7 to drive the pressure block 6 to clamp it; gently tension the carbon fiber multifilament sample, and wind it counterclockwise 2-3 times on the winding shaft 8, then wind it counterclockwise 2-3 times on the winding shaft 8, and then wind it clockwise around the winding shaft 8; keeping the carbon fiber multifilament sample taut, wind it clockwise around the winding shaft 8, then wind it counterclockwise 2-3 times on the winding shaft 8, and then wind it counterclockwise 2 times on the winding shaft 8. -3 turns; Keeping the tension, place one end of the carbon fiber multifilament sample on the upper surface of the L-shaped structure of the triangular support plate 5, and turn the locking knob 7 to drive the pressure block 6 to press it tight; Repeat the above steps to install the carbon fiber multifilament sample on the other side; Lift the pressing mechanism at both ends, rotate 180°, and press the fiber multifilament on the winding shaft 8; Invert the sample preparation device, loosen the locking knob 3 at one end, push the slider 2 closer, immerse the two multifilament samples in the glue, and keep it for the specified time; Push the slider 2 to separate, so that the sample obtains the appropriate tension, and lock the locking knob 3; Keeping the inverted state, remove the excess glue and place it in the air to dry; Keeping the inverted state, move the entire sample preparation device to the oven and bake it at the specified temperature and time.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A convenient, reliable and economical device for manual impregnation of carbon fiber multifilament for sample preparation, comprising a sliding mechanism, the sliding mechanism comprising a guide rail (1), both sides of the guide rail (1) are slidingly connected with a sliding block (2), the sliding block (2) can be fixed at any position of the guide rail (1) through a locking knob (3), the top of the sliding block (2) is provided with a bottom plate (4), characterized in that, The top of the base plate (4) is fixedly connected to a fiber multifilament fixing mechanism; The fiber multifilament fixing mechanism includes two triangular support plates (5), which are symmetrical in shape. The two triangular support plates (5) are fixed to the base plate (4) by bolts. Three winding shafts (8) are provided at the front end of the triangular support plate (5). The rear part of the triangular support plate (5) is designed in an L-shape. A threaded hole is provided at the top of the triangular support plate (5). A locking knob (7) is connected to the inner wall of the threaded hole by a thread. A pressure block (6) is provided at the bottom of the locking knob (7).

2. A simple, reliable and economical device for hand impregnation of carbon fiber tows for sample preparation according to claim 1, characterized in that The top of the two triangular support plates (5) is provided with the same fiber multifilament pressing mechanism; the fiber multifilament pressing mechanism includes a crane-shaped pressing arm (9), and the front end of the crane-shaped pressing arm (9) is provided with two pressing heads (10), the end face of the pressing head (10) is engaged with the winding shaft (8).

3. A simple, reliable and economical device for hand impregnation of carbon fiber tows for sample preparation according to claim 2, characterized in that The rear end of the crane-shaped pressure arm (9) is designed with a cylindrical protruding structure that is inserted into the round hole of the two triangular support plates (5). The cylindrical structure at the rear end of the crane-shaped pressure arm (9) has a through hole. The pressure arm knob (11) is inserted into the through hole. The pressure arm knob (11) passes through the pressure arm spring (12) and the crane-shaped pressure arm (9) and is connected to the base plate (4).

4. A simple, reliable and economical device for hand impregnation of carbon fiber tows for sample preparation according to claim 3, characterized in that The bottom end of the pressure head (10) has an arc-shaped structure.

5. A simple, reliable and economical device for hand impregnation of carbon fiber tows for sample preparation according to claim 1, characterized in that, The lower surface of the pressure block (6) and the upper surface of the triangular support plate (5) are both provided with a buffer layer, which is made of rubber.

6. A simple, reliable and economical device for hand impregnation of carbon fiber tows for sample preparation according to claim 4, characterized in that The bottom of the pressure block (6) is provided with an anti-slip ridge, which has an inverted rounded arc structure.

Images