A fiber separation device and a separation method thereof

Abstract

The present application relates to the field of fiber processing, in particular to a kind of fiber separation device and separation method thereof.It includes separation tube and liquid supplementing device, separation tube inside is used to hold liquid mixture containing disordered fiber.Piston is arranged in separation tube, fiber solution can be discharged from separation tube by pushing piston, the end of separation tube is provided with rigid tube, the inner diameter of rigid tube is greater than the diameter of single fiber to be separated but less than 2 times the diameter of single fiber to be separated, so as to ensure that only single fiber can be discharged at a time, separation tube is connected with liquid supplementing device by conduit, one-way valve is arranged in conduit, for intermittently supplementing liquid into separation tube, to realize the separation and ordering of single fiber.The device can realize the separation of single fiber from the mixture of disordered fiber and liquid, and improve the efficiency of fiber separation.

Description

Technical Field

[0001] This invention relates to the field of fiber processing, and more specifically to a fiber separation device and its separation method. Background Technology

[0002] Composite materials have attracted increasing attention globally due to their excellent mechanical properties and durability. Fibers, as an important additive component in composite materials, can significantly improve their mechanical properties, especially their bending and tensile properties, by ensuring that the fiber arrangement aligns with the principal tensile stress direction. Therefore, to further investigate the influence of the arrangement of bendable fibers in a mixture on its mechanical properties, it is necessary to select appropriate fiber materials and qualities (diameter, length, etc.) based on the intended use of the composite material, and to study fiber orientation and density during the design and manufacturing process. This will allow for the research and application of fiber arrangement in composite materials, enabling them to achieve ideal mechanical properties. However, in experimental research and industrial practice, the fineness of the fibers, sometimes less than 1 micrometer, and the adsorption forces between them, make it difficult to separate individual fibers and to study their ordered arrangement and orientation.

[0003] Current fiber separation methods are complex and inefficient. Many methods still cannot effectively separate individual fibers from fiber clusters, which introduces many errors and interferences into the study of the influence of fiber filaments on the performance of composite materials. Summary of the Invention

[0004] The purpose of this invention is to overcome at least one deficiency in the prior art and provide a fiber separation device and method thereof, which can achieve rapid fiber separation and improve fiber separation efficiency.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A fiber separation device includes a separation tube, a piston disposed inside the separation tube, and a rigid tube disposed at the end of the separation tube. The inner diameter of the rigid tube is larger than the diameter of the single fiber to be separated but smaller than twice the diameter of the single fiber to be separated.

[0007] The separation tube is connected to the liquid replenishment device and has unidirectional flow, while the rigid tube is fixedly connected to the flexible tube.

[0008] Both the rigid tube and the flexible tube are less than half the length of the single fiber to be separated, and a fiber collecting device is installed at the opening of the flexible tube.

[0009] The piston is connected to the output end of the axial drive device via a thrust column.

[0010] The axial drive device is mounted on the support frame, and the separation pipe is fixedly mounted on the support frame.

[0011] The axial drive device includes a support base, which is fixedly mounted on a support frame. An inner support base is provided inside the support base. Several springs are provided between the support base and the inner support base. The springs are always in a compressed state. An eccentric shaft gear is provided on the support base. A gear is provided on the inner support base. The gear meshes with the eccentric shaft gear. A pressure column is fixedly mounted on the inner support base. The pressure column passes through the support base and is fixedly connected to a thrust column.

[0012] An eccentric shaft gear is fixedly mounted on the first transmission shaft, and is movably mounted on the support base on the first transmission shaft.

[0013] The gear is fixedly mounted on the second drive shaft, which is movably mounted on the inner support seat. The support seat is provided with a sliding groove, and both ends of the second drive shaft are located in the sliding groove.

[0014] There are two springs, which are symmetrically arranged about the axis of the pressure column.

[0015] A fiber separation method includes the following steps:

[0016] S1. Add the mixture of fiber and liquid to be separated into the separation tube, and install the piston inside the separation tube;

[0017] S2. The mixture of fiber and liquid is squeezed by the piston, causing the fibers to be discharged from the rigid tube in an orderly manner, thus achieving the separation of individual fibers, until the piston moves to the bottom of the separation tube.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] The device of this invention includes a separation tube, the interior of which is used to hold a liquid mixture containing disordered fibers. A piston is installed inside the separation tube; pushing the piston discharges the fiber solution from the separation tube. A rigid tube is installed at the end of the separation tube, the inner diameter of which is larger than the diameter of the individual fiber to be separated but less than twice the diameter of the individual fiber, thereby ensuring that only one fiber is discharged at a time, thus achieving the separation and sorting of individual fibers. This device can separate individual fibers from a disordered mixture of fibers and liquid, improving the efficiency of fiber separation.

[0020] Furthermore, the separation tube is connected to the liquid replenishment device and is unidirectionally oriented. The rigid tube is fixedly connected to the flexible tube. The liquid replenishment device is used to replenish liquid into the separation tube, optimizing the separation steps of the device and improving the separation efficiency.

[0021] Furthermore, the piston is connected to the output end of the axial drive unit via a thrust column. The axial drive unit improves the automation level of the device, further enhancing its fiber separation efficiency.

[0022] The method of this invention is as follows: The fibers to be separated are added inside a separation tube, and a piston is installed inside the separation tube; the piston squeezes the fiber solution, causing the individual fibers to be discharged orderly from the rigid tube, thus achieving single-fiber separation, until the piston moves to the bottom of the separation tube. Repeating the above steps allows for continuous separation of individual fibers. This method is easy to implement and improves the efficiency of fiber separation. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the separation tube separation device of the present invention;

[0026] Figure 3 This is a schematic diagram of the axial drive device of the present invention;

[0027] Figure 4 This is a schematic diagram of the overall structure of the present invention under pressure.

[0028] Figure 5 This is a schematic diagram of the overall structure of the present invention in its reset state.

[0029] Among them, 1. support frame; 2. fiber collection device; 3. liquid replenishment device; 4. conduit; 5. one-way valve; 6. separation tube; 7. axial drive device; 9. thrust column; 11. fiber; 12. rigid tube; 13. flexible tube; 14. motor; 15. eccentric shaft gear; 16. support seat; 17. gear; 18. inner support seat; 19. spring; 20. pressure column; 21. piston; 22. on the first drive shaft; 23. second drive shaft. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] like Figure 1 , Figure 2, Figure 4 and Figure 5 As shown, the present invention provides a fiber separation device, including a separation tube 6, a piston 21 disposed inside the separation tube 6, and a rigid tube 12 disposed at the end of the separation tube 6. The inner diameter of the rigid tube 12 is larger than the diameter of the single fiber 11 to be separated but smaller than twice the diameter of the single fiber 11 to be separated.

[0032] Preferably, the device of the present invention includes a separation tube 6, the interior of which is used to hold a solution containing multiple disordered fibers 11. A piston 21 is provided inside the separation tube 6; pushing the piston 21 discharges the fiber solution from the separation tube. A rigid tube 12 is provided at the end of the separation tube. The inner diameter of the rigid tube 12 is larger than the diameter of the single fiber 11 to be separated but less than twice the diameter of the single fiber 11 to be separated, thereby ensuring that only a single fiber can be discharged at a time, thus achieving single-fiber separation. By repeating the above process with this device, rapid fiber separation can be achieved, improving the efficiency of fiber separation.

[0033] Preferred, such as Figure 1 , Figure 4 and Figure 5 As shown, the separation tube 6 is connected to the replenishing device 3 and is unidirectionally open, while the rigid tube 12 is fixedly connected to the flexible tube 13. The replenishing device 3 is used to replenish the liquid inside the separation tube 6, while preventing the solution containing disordered fibers 11 inside the separation tube 6 from entering the replenishing device 3. That is, when the piston 21 is pulled outward, the flexible tube 13 closes, sealing the rigid tube 12. If there are fibers inside the flexible tube 13 that have not been discharged, the fibers are clamped by the flexible tube 13, preventing the fibers from being sucked back into the separation tube 6. At the same time, the replenishing device 3 replenishes the liquid inside the separation tube 6. When the piston 21 is pushed into the separation tube 6, the connection channel between the replenishing device 3 and the separation tube 6 closes, the flexible tube 13 opens, and the fibers in the fiber solution are discharged smoothly and orderly. By setting up the unidirectional replenishing device 3 and the flexible tube 13, the separation steps of the device are optimized, and the separation efficiency is improved.

[0034] Preferred, such as Figure 1 As shown, the separation tube 6 is connected to the replenishment device 3 via the conduit 4. A one-way valve 5 is installed inside the conduit 4 to allow one-way communication between the separation tube 6 and the replenishment device 3. Specifically, when the piston 21 is pulled outward, the flexible tube 13 closes, and simultaneously, the one-way valve 5 opens, allowing the replenishment device 3 to replenish the separation tube 6 through the conduit 4. When the piston 21 is pushed into the separation tube 6, the one-way valve 5 closes, the flexible tube 13 opens, and the fibers in the fiber solution are smoothly and orderly discharged.

[0035] Preferably, the lengths of both the rigid tube 12 and the flexible tube 13 are less than half the length of the single fiber 11 to be separated, that is, the total length of the rigid tube 12 and the flexible tube 13 is less than the length of the single fiber 11, to prevent the fiber 11 from getting stuck in the pipe. A fiber collecting device 2 is provided at the opening of the flexible tube 13 for collecting and arranging the fibers 11.

[0036] Preferably, the diameter of the rigid tube 12 is 1.5 times that of the fiber. If the diameter of the fiber to be separated and sorted is 0.01 mm and the length is 4 mm, then the diameter of the rigid tube 12 is 0.015 mm. The lengths of both the rigid tube 12 and the flexible tube 13 are less than 2 mm. The rigid tube 12 can be manufactured using a capillary needle drawing device.

[0037] Preferred, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, piston 21 is connected to the output end of axial drive device 7 via thrust column 9. Axial drive device 7 drives piston 21 to reciprocate inside separation tube 6 via thrust column 9, achieving continuous separation of the device. The axial drive device can improve the automation level of the device, save labor costs, and further improve the fiber separation efficiency of the device.

[0038] like Figure 1 As shown, the axial drive device 7 is mounted on the support frame 1, and the separation pipe 6 is fixedly mounted on the support frame 1.

[0039] like Figure 3 , Figure 4 and Figure 5 As shown, the axial drive device 7 includes a support base 16, which is fixedly mounted on the support frame 1. An inner support base 18 is provided inside the support base 16. Several springs 19 are provided between the support base 16 and the inner support base 18. The springs 19 are always in a compressed state. An eccentric shaft gear 15 is provided on the support base 16, and a gear 17 is provided on the inner support base 18. The gear 17 meshes with the eccentric shaft gear 15. A pressure column 20 is fixedly mounted on the inner support base 18. The pressure column 20 passes through the support base 16 and is fixedly connected to the thrust column 9.

[0040] The working principle of the axial drive device 7 is as follows:

[0041] Rotating the eccentric shaft gear 15 causes the gear 17 to rotate, and the spring 19 pushes the inner support seat 18 to move up and down, so that the eccentric shaft gear 15 and the gear 17 are always in a meshing state. At the same time, during the up and down movement of the inner support seat 18, the pressure column 20 drives the thrust column 9 to move up and down, which in turn drives the piston 21 to move up and down. This structure converts the rotation of the eccentric shaft gear 15 into the axial reciprocating motion of the pressure column 20, realizing the continuous separation and sorting of fibers by the device and improving efficiency.

[0042] like Figure 3 , Figure 4 and Figure 5 As shown, the eccentric shaft gear 15 is fixedly mounted on the first transmission shaft 22, and the first transmission shaft 22 is movably mounted on the support base 16.

[0043] Preferred, such as Figure 3 , Figure 4 and Figure 5 As shown, gear 17 is fixedly mounted on the second drive shaft 23, which movably passes through the inner support base 18. A sliding groove is provided on the inner sidewall of the support base 18, and both ends of the second drive shaft 23 are located within the sliding groove. By providing the sliding groove on the support base 16, the stability of the up-and-down movement of the second drive shaft 23 is ensured, which in turn ensures the stability of the axial reciprocating motion of the pressure column 20.

[0044] Preferred, such as Figure 3 As shown, the axial drive device 7 includes a motor 14, the output end of which is connected to the input shaft of the eccentric shaft gear 15. Driving the axial drive device 7 with a motor further improves the automation level of the device and the efficiency of fiber separation and sorting.

[0045] Preferred, such as Figure 3 , Figure 4 and Figure 5 As shown, there are two springs 19, which are symmetrically arranged about the axis of the pressure column 20. This improves the stability of the axial drive device 7 during axial drive.

[0046] In another aspect, the present invention provides a fiber separation method, comprising the following steps:

[0047] S1. A mixture of multiple fibers 11 to be separated and liquid is added inside the separation tube 6, and the piston 21 is installed inside the separation tube 6, as follows. Figure 5 As shown;

[0048] S2. The piston 21 squeezes the fiber solution, causing the mixture of fiber 11 and liquid to be discharged in an orderly manner from the rigid tube 12, thus achieving single-fiber separation of fiber 11, until the piston 21 moves to the bottom of the separation tube 6. Figure 4 The diagram shown is a schematic representation of the overall structure of the present invention in its compressed state. Figure 5 This is a schematic diagram of the overall structure of the present invention in its reset state.

[0049] Repeating the above steps can achieve continuous separation of individual fibers. This method is easy to implement and improves the efficiency of fiber separation.

[0050] In a further embodiment, the fiber separation method provided by the present invention is as follows:

[0051] S1. Add the fibers to be separated inside the separator tube 6, and install the piston 21 inside the separator tube 6, as follows. Figure 5 As shown;

[0052] S2. Start motor 14. Motor 14 drives eccentric shaft gear 15 to rotate. Eccentric shaft gear 15 drives gear 17 to rotate. At the same time, spring 19 pushes inner support seat 18 to move up and down. Inner support seat 18 drives gear 17 to move, so that eccentric shaft gear 15 and gear 17 are always in mesh. Inner support seat 18 drives thrust column 9 to move up and down through pressure column 20, which in turn drives piston 21 to move up and down.

[0053] When the thrust column 9 drives the piston 21 to move towards the opening of the separator tube 6, the flexible tube 13 closes, the one-way valve 5 opens, and the liquid replenishment device 3 supplies liquid into the separator tube 6 through the conduit 4 until the piston 21 moves to the top of the separator tube 6. Figure 5 As shown;

[0054] When the thrust column 9 drives the piston 21 to move into the separation tube 6, the one-way valve 5 closes, the flexible tube 13 opens, and the piston 21 squeezes the fiber solution, causing the fibers to be discharged orderly from the flexible tube 13, until the piston 21 moves to the bottom of the separation tube 6. The discharged fibers are collected by the fiber collecting device 2. Figure 4 As shown.

[0055] The fiber separation device and its corresponding separation method provided by this invention, compared with the prior art, can achieve simple and efficient separation of single fibers, which is conducive to further research on the arrangement of fibers in composite materials, and to realizing the rapid separation and arrangement of fiber filaments in composite materials in industrial practice.

[0056] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A fiber separation device, characterized in that, Includes a separation tube (6) for holding a mixture of fiber-containing liquids, a piston (21) is provided inside the separation tube (6), and a rigid tube (12) is provided at the end of the separation tube (6). The inner diameter of the rigid tube (12) is larger than the diameter of the single fiber (11) to be separated but smaller than twice the diameter of the single fiber (11) to be separated. It also includes an axial drive device (7), which can drive the piston (21) to reciprocate inside the separation tube (6) to discharge the fiber liquid mixture from the separation tube; The separation tube (6) is connected to the liquid replenishment device (3) and is unidirectionally connected, and the rigid tube (12) is fixedly connected to the flexible tube (13). The lengths of both the rigid tube (12) and the flexible tube (13) are less than half the length of the single fiber (11) to be separated, and a fiber collecting device (2) is provided at the opening of the flexible tube (13).

2. The fiber separation device as described in claim 1, characterized in that, The piston (21) is connected to the output end of the axial drive device (7) via the thrust column (9).

3. The fiber separation device as described in claim 2, characterized in that, The axial drive device (7) is mounted on the support frame (1), and the separation tube (6) is fixedly mounted on the support frame (1).

4. The fiber separation device as described in claim 3, characterized in that, The axial drive device (7) includes a support base (16), which is fixedly mounted on the support frame (1). An inner support base (18) is provided inside the support base (16). Several springs (19) are provided between the support base (16) and the inner support base (18). The springs (19) are always in a compressed state. An eccentric shaft gear (15) is provided on the support base (16). A gear (17) is provided on the inner support base (18). The gear (17) meshes with the eccentric shaft gear (15). A pressure column (20) is fixedly mounted on the inner support base (18). The pressure column (20) passes through the support base (16) and is fixedly connected to the thrust column (9).

5. The fiber separation device as described in claim 4, characterized in that, The eccentric shaft gear (15) is fixedly mounted on the first transmission shaft (22), and the first transmission shaft (22) is movably mounted on the support seat (16).

6. The fiber separation device as described in claim 4, characterized in that, The gear (17) is fixedly mounted on the second drive shaft (23), which is movably mounted on the inner support seat (18). The support seat (16) is provided with a sliding groove, and both ends of the second drive shaft (23) are located in the sliding groove.

7. The fiber separation device as described in claim 4, characterized in that, There are two springs (19), and the two springs (19) are symmetrically arranged about the axis of the pressure column (20).

8. A fiber separation method using the apparatus as described in claim 1, characterized in that, Includes the following steps: S1. Add a mixture of fiber (11) to be separated and liquid inside the separation tube (6), install piston (21) inside the separation tube (6), and drive piston (21) downward in the separation tube (6) using axial drive device (7); S2. The mixture of fiber (11) and liquid is squeezed by the downward-moving piston (21), so that the fiber (11) is discharged in an orderly manner from the rigid tube (12).

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