Micro-filament sample preparation device

Abstract

The utility model provides a micro-filament sample preparation device and relates to the technical field of micro-filaments. The fine filament sample preparation device comprises a first winding piece, a second winding piece and a bearing assembly, the first winding piece and the second winding piece are arranged in a spaced mode in the first direction, and a first containing groove is formed in the side, back to the second winding piece, of the first winding piece in the first direction; a second containing groove is formed in the side, back to the first winding piece, of the second winding piece in the first direction, and the first containing groove and the second containing groove are both used for winding fine wires. The bearing assembly comprises a bearing face, the bearing face is perpendicular to the first direction, the bearing face is located on the side, back to the first winding piece, of the second winding piece, and the bearing face is used for bearing a sample cup. The micro-filament sample preparation device disclosed by the utility model can meet the requirements of sample preparation of micro-filaments such as bonding wires and the like.

Description

Technical Field

[0001] This application relates to the field of microfilament technology, and in particular to a microfilament sample preparation apparatus. Background Technology

[0002] Metallographic specimens and microstructure observation specimens for bonded wires are essential specimens used to observe the microstructure, grain size and distribution, and other microscopic features of bonded wires under an optical microscope or electron microscope. The preparation process can be divided into steps such as sampling, mounting, grinding and polishing, cleaning, and etching. The quality of the prepared specimens plays a crucial role in the quality control and performance optimization of bonded wire products, as detailed below.

[0003] By preparing microstructure observation samples, the internal structure of the bonding wire can be directly observed, including grain size, shape, distribution, and grain boundary characteristics. By comparing the microstructures of samples prepared from different batches or under different process conditions, the consistency and stability of the bonding wire can be evaluated. Understanding the microstructure characteristics of the bonding wire allows for performance optimization. For example, by adjusting parameters such as material composition and heat treatment processes, the grain morphology and distribution of the bonding wire can be improved, thereby enhancing its mechanical properties, electrical conductivity, or corrosion resistance.

[0004] As the diameter of bonding wires gradually decreases, the preparation of bonding wire specimens presents certain challenges. Firstly, sampling is difficult; the diameter of commonly used bonding wires is generally around 20 micrometers, making them too small to be easily fixed. Secondly, during the mounting stage, clamping difficulties make it hard to ensure the axial or radial cross-section of the bonding wire is parallel to the grinding surface, leading to significant randomness in mounting. Thirdly, during the grinding stage, the uncertainty of the sample position during mounting increases the risk of completely wearing away the area to be observed. In other words, existing bonding wire specimen preparation methods are insufficient to meet the requirements for bonding wire specimen preparation. Utility Model Content

[0005] In view of this, this application provides a microfilament sample preparation apparatus to solve the problem that existing sample preparation methods cannot meet the needs of sample preparation.

[0006] This application provides a microfilament sample preparation device, which includes a first winding member, a second winding member, and a support assembly. The first winding member and the second winding member are spaced apart along a first direction. The first winding member has a first receiving groove formed on the side of the first winding member opposite to the second winding member in the first direction, and the second winding member has a second receiving groove formed on the side of the second winding member opposite to the first winding member in the first direction. Both the first receiving groove and the second receiving groove are used for winding microfilaments.

[0007] The support assembly includes a support surface that is perpendicular to the first direction and is located on the side of the second winding member opposite to the first winding member. The support surface is used to support the sample cup.

[0008] Preferably, the sample cup includes two open parts;

[0009] The supporting assembly includes two supporting members, each corresponding to one of the two open members. The supporting members are capable of supporting the corresponding open members. The two supporting members can move closer to or further away from each other in a second direction, which is perpendicular to the first direction.

[0010] Preferably, the supporting surface includes two supporting portions;

[0011] The support member includes a support portion and an enclosure portion. The support portion and the enclosure portion are connected on the side opposite to the first winding member in the first direction. The support portion is located on the side of the support portion facing the first winding member in the first direction. Two enclosure portions of the two support members can abut against each other.

[0012] Preferably, the microfilament sample preparation device further includes a base and two sliding members, the two supporting members being fixed on the two sliding members respectively, and the sliding members being slidably connected to the base so that the sliding members can move on the base along the second direction.

[0013] Preferably, a sliding groove is formed on the base, the sliding groove extends along the second direction, a portion of the slider is located in the sliding groove, and is capable of sliding within the sliding groove.

[0014] Preferably, the microfilament sample preparation device includes two support members, which are spaced apart along a third direction, and the third direction is perpendicular to the plane defined by the first direction and the second direction;

[0015] The support member includes a first mounting hole and a second mounting hole, which are spaced apart along the first direction. The first winding member passes through the two first mounting holes, and the second winding member passes through the two second mounting holes.

[0016] Preferably, the diameter of the microfilament is d;

[0017] The dimension of the first receiving groove in the third direction is 'a', where 3d ≤ a ≤ 5d;

[0018] The second receiving groove has a dimension of b in the third direction, where 3d ≤ b ≤ 5d.

[0019] Preferably, the support member has a connecting hole that extends along the first direction, the first mounting hole communicates with the connecting hole, and the size of the first mounting hole in the first direction is larger than the size of the first winding member in the first direction;

[0020] An elastic element is provided inside the connecting hole, and one end of the elastic element abuts against the first winding element.

[0021] Preferably, the base has two mounting holes, which are spaced apart along the third direction, and the two support members are respectively inserted into the two mounting holes.

[0022] Preferably, the sliding groove includes a first groove portion and a second groove portion, both of which extend along the second direction, and the dimension of the first groove portion in the third direction is smaller than the dimension of the second groove portion in the third direction;

[0023] The slider includes a first sliding part and a second sliding part. The dimension of the first sliding part in the third direction is smaller than the dimension of the second sliding part in the third direction. The second sliding part is disposed in the second groove, and a portion of the first sliding part is located in the first groove.

[0024] When preparing microfilament samples using the microfilament sample preparation apparatus of this application, the microfilament is first wound around a first winding member and a second winding member through a first receiving groove and a second receiving groove, with multiple turns of the microfilament. The microfilament is then spirally wound around the portion of the microfilament located between the first and second winding members, with a first direction as the axial direction. Next, a sample cup is placed on a support surface, and an embedding liquid is injected into the sample cup, which solidifies to form an initial sample. Finally, the initial sample is separated from the sample cup, and the initial sample is ground and polished to form an observation sample. The microfilament sample preparation apparatus uses the first receiving groove on the first winding member and the second receiving groove on the second winding member to fix the microfilament, improving the convenience of fixing the microfilament sample. Simultaneously, through the combination of the first and second winding members and the aforementioned winding method, the radial cross-section of the portion of the microfilament located between the first and second winding members is parallel to the top surface of the initial sample, and the portion of the microfilament located within the second receiving groove is covered by the embedding liquid, with the axial direction of the portion of the microfilament located within the second receiving groove parallel to the bottom surface of the initial sample, reducing the randomness of sample embedding. Since the microfilament is fixed by the first and second winding members, its position can be determined, and the multi-turn winding method reduces the risk of completely wearing away the area to be observed. Thus, the microfilament sample preparation apparatus of this application can be used to prepare samples of bonding wires and other microfilaments, thereby meeting the requirements for microfilament sample preparation. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A three-dimensional structural schematic diagram of the microfilament sample preparation device according to an embodiment of the present invention is shown;

[0027] Figure 2 A schematic diagram of the planar structure of the microfilament sample preparation device according to an embodiment of the present invention is shown;

[0028] Figure 3 Show Figure 2 A cross-sectional view obtained by cutting the microfilament sample preparation device along A-A';

[0029] Figure 4 The diagram shows the relative positions of the microfilament with the first winding member, the second winding member, and the sample cup after the microfilament winding is completed.

[0030] Figure 5 A schematic diagram of the top surface of the observed specimen is shown;

[0031] Figure 6 A schematic diagram of the bottom surface of the observed sample is shown.

[0032] Icons: 1-First winding component; 11-First receiving groove; 2-Second winding component; 21-Second receiving groove; 3-Supporting assembly; 31-Supporting component; 311-Supporting part; 312-Enclosing part; 3121-Notch; 4-Base; 41-Sliding groove; 5-Sliding component; 51-Connecting part; 52-First sliding part; 53-Second sliding part; 6-Supporting component; 61-First mounting hole; 62-Connecting hole; 7-Elastic component; 81-Microfilament; 82-Sample cup; 9-Inlay part; S1-Supporting surface; S11-Supporting part; L1-First direction; L2-Second direction; L3-Third direction. Detailed Implementation

[0033] The following will combine Figures 1 to 4 The microfilament sample preparation apparatus of this application is described below. Figures 1 to 4 In the middle, the first direction L1, the second direction L2, and the third direction L3 are perpendicular to each other.

[0034] like Figures 1 to 3As shown, the microfilament sample preparation device includes a first winding member 1, a second winding member 2, and a support assembly 3. The first winding member 1 and the second winding member 2 are spaced apart along a first direction L1. The first winding member 1 has a first receiving groove 11 formed on the side of the first winding member 1 facing away from the second winding member 2 in the first direction L1, and the second winding member 2 has a second receiving groove 21 formed on the side of the second winding member 2 facing away from the first winding member 1 in the first direction L1. Both the first receiving groove 11 and the second receiving groove 21 are used to wind microfilaments 81. The support assembly 3 includes a support surface S1, which is perpendicular to the first direction L1. The support surface S1 is located on the side of the second winding member 2 facing away from the first winding member 1 and is used to support the sample cup 82.

[0035] When preparing a microfilament 81 sample using the microfilament sample preparation apparatus of this application, the microfilament 81 is first wound around the first winding member 1 and the second winding member 2 through the first receiving groove 11 and the second receiving groove 21, with multiple turns of the microfilament 81. Then, the microfilament 81 is spirally wound around the portion of the microfilament 81 located between the first winding member 1 and the second winding member 2, with the first direction L1 as the axis. Next, the sample cup 82 is placed on the support surface S1, and an embedding liquid is injected into the sample cup 82. The embedding liquid solidifies to form an initial sample, which includes an embedding portion 9 formed by the solidification of the embedding liquid and the microfilament 81 embedded in the embedding portion 9. Finally, the initial sample is separated from the sample cup 82 and ground and polished to form an observation sample. The microfilament sample preparation apparatus uses the first receiving groove 11 on the first winding member 1 and the second receiving groove 21 on the second winding member 2 to fix the microfilament 81, improving the convenience of fixing the microfilament 81 sample. Simultaneously, through the combination of the first winding member 1 and the second winding member 2 with the aforementioned winding method, the radial cross-section of the portion of the microfilament 81 located between the first winding member 1 and the second winding member 2 is parallel to the top surface of the initial sample. Furthermore, the portion of the microfilament 81 located within the second receiving groove 21 is covered by the embedding liquid, and the axial direction of the portion of the microfilament 81 located within the second receiving groove 21 is parallel to the bottom surface of the initial sample, reducing the randomness of sample embedding. Since the microfilament 81 is fixed by the first winding member 1 and the second winding member 2, the position of the microfilament 81 can be determined. In addition, the multi-turn winding method reduces the risk of completely wearing away the area to be observed. Thus, by using the microfilament sample preparation apparatus of this application to prepare microfilament 81 samples, the requirements for microfilament 81 sample preparation are met.

[0036] Preferably, the number of turns of the microfilament 81 is greater than or equal to 20 turns.

[0037] Alternatively, the filament can be a fine metal wire with a diameter of less than 50 micrometers, such as a bonding wire.

[0038] Furthermore, the diameter of the microfilament 81 is d; the dimension of the first receiving groove 11 in the third direction L3 is a, where 3d ≤ a ≤ 5d; the dimension of the second receiving groove 21 in the third direction L3 is b, where 3d ≤ b ≤ 5d, so that the first receiving groove 11 and the second receiving groove 21 can meet the requirements for winding the microfilament 81. Preferably, the dimensions of the first receiving groove 11 and the second receiving groove 21 in the third direction L3 are 0.1 mm.

[0039] Optionally, the first winding member 1 and the second winding member 2 are rod-shaped structures, and the first winding member 1 and the second winding member 2 can be made of materials such as metal, rubber or plastic.

[0040] Furthermore, the sample cup 82 includes two open sections, the shapes of which are similar to those of the support member 31. When the two open sections abut, they form a cylindrical structure with an opening at the top, allowing the embedding liquid to be injected into the sample cup 82 through the opening at the top. The sample cup 82 can be made of rubber to facilitate separation of the sample cup 82 from the initial sample. The method of sample preparation using the sample cup 82 in conjunction with the support member 3 extends the service life of the support member 3.

[0041] like Figure 1 and Figure 2 As shown, the support assembly 3 includes two support members 31, each corresponding to one of the two open members. The support members 31 support their respective open members, and the two support members 31 can move closer or further apart in the second direction L2, thereby causing the two open members of the sample cup 82 to move closer or further apart in the second direction L2. Thus, during the winding of the microfilament 81, the two support members 31 separate to avoid interference between the support members 31 and the open members during the winding of the microfilament 81. After the microfilament 81 is wound, the two support members 31 abut together, causing the two open members to abut together, allowing the mounting fluid to be injected into the sample cup 82, thereby completing the mounting of the sample.

[0042] It should be noted that when injecting the mounting liquid into the sample cup 82, the liquid level of the mounting liquid needs to be such that the mounting liquid can immerse a portion of the microfilament 81 wound on the microfilament 81 located between the first winding member 1 and the second winding member 2 into the mounting liquid, so as to ensure that the portion of the microfilament 81 wound on the microfilament 81 located between the first winding member 1 and the second winding member 2 is covered by the mounting part 9 formed by the solidification of the mounting liquid.

[0043] Furthermore, such as Figure 1 As shown, the supporting surface S1 includes two supporting parts S11, and the supporting member 31 includes a supporting part 311 and a surrounding part 312. The supporting part 311 can be a semi-circular plate, and the surrounding part 312 can be an arc-shaped plate. The supporting part 311 and the surrounding part 312 are on the side opposite to the first winding member 1 in the first direction L1. Figure 1 (From the lower side of the viewing angle) The supporting portion S11 is located on the side of the supporting portion 311 facing the first winding member 1 in the first direction L1. That is, the supporting portion S11 is the surface of the supporting portion 311 facing the first winding member 1, and the two surfaces of the two supporting portions 311 facing the first winding member 1 constitute the supporting surface S1. The two surrounding portions 312 of the two supporting members 31 can abut. During the preparation of the microfilament 81 sample, the two open members are respectively supported on the two supporting portions 311, the two surrounding portions 312 abut, and the two open members abut to facilitate the injection of the embedding liquid.

[0044] Optionally, the two support portions 311 may abut or have a certain gap. Preferably, there is a certain gap between the two support portions 311, which facilitates the removal of the sample cup 82 from the support assembly.

[0045] Furthermore, two notches 3121 are formed on the surrounding portion 312. The notches 3121 on the two surrounding portions 312 correspond one-to-one. When the two surrounding portions 312 abut, the notches 3121 on one surrounding portion 312 and their corresponding notches 3121 on the other surrounding portion 312 enclose a circular space. The two surrounding portions 312 enclose two circular spaces for the second winding member 2 to pass through. Two notches are formed on the open portion of the sample cup 82. The notches on the two open portions correspond one-to-one. When the two open portions abut, the notches on one open portion and their corresponding notches on the other open portion enclose a circular space. The two open portions enclose two circular spaces for the second winding member 2 to pass through.

[0046] In the embodiments of this application, such as Figure 1 , Figure 2 and Figure 3 As shown, the microfilament sample preparation device also includes a base 4 and two sliding members 5. Two support members 31 are respectively fixed on the two sliding members 5. The sliding members 5 are slidably connected to the base 4 so that the sliding members 5 can move on the base 4 along the second direction L2, thereby driving the two support members 31 to move along the second direction L2.

[0047] Furthermore, a sliding groove 41 is formed on the base 4, the sliding groove 41 extends along the second direction L2, part of the slider 5 is located in the sliding groove 41 and can slide in the sliding groove 41, so that the two support members 31 can abut or separate.

[0048] In addition, the sliding groove 41 is open at both ends in the second direction L2, which allows the slider 5 to be removed from the base 4.

[0049] Preferably, the slider 5 includes a connecting portion 51, a first sliding portion 52, and a second sliding portion 53. The connecting portion 51, the first sliding portion 52, and the second sliding portion 53 can all be cuboid in shape. The connecting portion 51 extends along the second direction L2, and the first sliding portion 52 extends along the first direction L1. One end of the connecting portion 51 is connected to the middle of the first sliding portion 52, and the other end of the connecting portion 51 is connected to the surrounding portion 312 of the support member 31. The second sliding portion 53 is connected to the bottom of the first sliding portion 52, and the dimension of the second sliding portion 53 in the third direction L3 is larger than the dimension of the first sliding portion 52 in the third direction L3. The sliding groove 41 includes a first groove and a second groove that are connected. Both the first groove and the second groove extend along the second direction L2. The dimension of the first groove in the third direction L3 is smaller than the dimension of the second groove in the third direction L3, and the second groove is located below the first groove. The second sliding portion 53 is disposed within the second groove, and a portion of the first sliding portion 52 is located within the first groove, so that the slider 5 can move along the second direction L2.

[0050] Optionally, the sliding connection between the slider 5 and the base 4 is not limited to this. For example, the base 4 may be provided with a protrusion extending along the second direction L2, and the bottom of the slider 5 is formed with a groove, with part of the protrusion located in the groove.

[0051] In the embodiments of this application, such as Figure 1 and Figure 3 As shown, the microfilament sample preparation device includes two support members 6, which are spaced apart along the third direction L3. The base 4 has two mounting holes, also spaced apart along the third direction L3, and the two support members 6 are respectively inserted into the two mounting holes. In this way, the support members 6 are fixed by insertion, facilitating their installation on or removal from the base 4.

[0052] Furthermore, the support member 6 includes a first mounting hole 61 and a second mounting hole, which are spaced apart along a first direction L1. The first winding member 1 passes through the two first mounting holes 61, and the second winding member 2 passes through the two second mounting holes, thereby enabling the installation of the first winding member 1 and the second winding member 2 through the two support members 6.

[0053] like Figure 3As shown, the support member 6 has a connecting hole 62 extending along the first direction L1. The first mounting hole 61 communicates with the connecting hole 62, and the size of the first mounting hole 61 in the first direction L1 is larger than the size of the first winding member 1 in the first direction L1. An elastic member 7 is provided inside the connecting hole 62, and the elastic member 7 abuts against the first winding member 1. After the microfilament 81 is wound around the first winding member 1 and the second winding member 2 through the first receiving groove 11 and the second receiving groove 21, when the operation of winding the microfilament 81 around the portion of the microfilament 81 located between the first winding member 1 and the second winding member 2 is performed, the portion of the microfilament 81 located between the first winding member 1 and the second winding member 2 gathers together, the first winding member 1 moves towards the second winding member 2, and the two elastic members 7 are compressed. In this way, by providing the elastic members 7, the microfilament 81 can be kept taut without breaking.

[0054] Preferably, the elastic element 7 is a spring.

[0055] Optionally, the connecting hole 62 can extend to a position between the first mounting hole 61 and the second mounting hole. In this case, one end of the elastic member 7 abuts against the first winding member 1, and the other end of the elastic member 7 abuts against the bottom wall of the extending hole 62. The connecting hole 62 can also extend to the second mounting hole, so that the first mounting hole 61 and the second mounting hole are connected through the connecting hole 62. In this case, both ends of the elastic member 7 abut against the first winding member 1 and the second winding member 2, respectively.

[0056] The steps for preparing microfilament samples using the microfilament sample preparation apparatus of this application are as follows:

[0057] (1) The first end of the microfilament 81 can be fixed on the end of the support member 6. Then the microfilament 81 is wound around the first winding member 1 and the second winding member 2 through the first receiving groove 11 and the second receiving groove 21. The number of winding turns of the microfilament 81 is greater than or equal to 20 turns, thereby completing the longitudinal winding.

[0058] (2) The portion of the microfilament 81 located between the first winding member 1 and the second winding member 2 is spirally wound in the first direction L1 as the axis, so that the portion of the microfilament 81 located between the first winding member 1 and the second winding member 2 is gathered together to facilitate observation after sample preparation. Under the action of the two elastic members 7, the first winding member 1 will move, and the microfilament 81 will remain taut without breaking. After the transverse winding is completed, the tail end of the microfilament 81 can also be fixed on the support member 6.

[0059] (3) Place the two open parts of the sample cup 82 on the two support parts 31 respectively, and move the two support parts 31 and the two open parts by the two sliding parts 5 so that the two open parts are brought together. Then inject the embedding liquid into the sample cup 82. The embedding liquid solidifies to form the initial sample. The initial sample includes the embedding part 9 formed by the solidification of the embedding liquid and the microfilament 81 embedded in the embedding part 9.

[0060] (4) First, the portion of the microfilament 81 located above the initial sample is cut off. Then, the two supporting members 31 are separated by the two sliding members 5, and the initial sample is separated from the sample cup 82. Next, the two supporting members 6 are separated from the base 4, and the supporting members 6 are separated from the first winding member 1 and the second winding member 2. At this time, only the portion of the second winding member 2 is located inside the initial sample. Since the radial section of the portion of the microfilament 81 located between the first winding member 1 and the second winding member 2 is parallel to the top surface of the initial sample, the radial section of the microfilament 81 corresponds to the upper side of the initial sample. At this time, a large number of clustered microfilaments 81 can be observed on the top surface of the initial sample. And since the portion of the microfilament 81 located between the first winding member 1 and the second winding member 2 is perpendicular to the top surface of the initial sample, the positional distribution of the microfilaments 81 on the sample surface will not be affected in the subsequent grinding and polishing process. Due to the presence of the second receiving groove 21, the axial direction of the portion of the microfilament 81 located within the second receiving groove 21 is parallel to the bottom surface of the initial sample. This makes the axial cross-section of the microfilament 81 parallel to the bottom surface of the initial sample. Through subsequent grinding and polishing processes, the axial cross-section of the microfilament 81 can be made to appear at the bottom of the initial sample. After grinding and polishing the bottom of the initial sample, an observation sample is formed, such as... Figure 5 and Figure 6 As shown, the top surface of the specimen corresponds to the radial section, and the bottom surface of the specimen corresponds to the axial section. The radial and axial sections of the microfilament 81 can be prepared in one preparation process.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A microfilament specimen preparation device, characterized by, The micro-filament sample preparation device comprises a first winding member, a second winding member and a supporting assembly, the first winding member and the second winding member are spaced apart along a first direction, a first accommodating groove is formed on a side of the first winding member facing away from the second winding member along the first direction, a second accommodating groove is formed on a side of the second winding member facing away from the first winding member along the first direction, and the first accommodating groove and the second accommodating groove are used for winding micro-filaments. The supporting assembly comprises a supporting surface, the supporting surface is perpendicular to the first direction, the supporting surface is located on a side of the second winding member facing away from the first winding member, and the supporting surface is used for supporting a sample cup.

2. The microfilament specimen preparation device of claim 1, wherein, The sample cup comprises two open members. The supporting assembly comprises two supporting members, the two supporting members correspond to the two open members respectively, the supporting members can support the corresponding open members, and the two supporting members can move close to or away from each other along a second direction.

3. The microfilament specimen preparation device of claim 2, wherein, The supporting surface comprises two supporting portions. The supporting member comprises a supporting part and a surrounding part, the supporting part is connected to a side of the surrounding part facing the second winding member along the first direction, the supporting portion is located on a side of the supporting part facing the first winding member along the first direction, and the two surrounding parts of the two supporting members can abut against each other.

4. The microfilament specimen preparation device of claim 2, wherein, The micro-filament sample preparation device further comprises a base and two sliding members, the two supporting members are fixed on the two sliding members respectively, and the sliding members are slidingly connected to the base so that the sliding members can move along the second direction on the base.

5. The microfilament specimen preparation device of claim 4, wherein, A sliding groove is formed on the base, the sliding groove extends along the second direction, and part of the sliding member is located in the sliding groove and can slide in the sliding groove.

6. The microfilament specimen preparation device of claim 5, wherein, The micro-filament sample preparation device comprises two supporting members, the two supporting members are spaced apart along a third direction, and the third direction is perpendicular to a plane determined by the first direction and the second direction. The supporting member comprises a first installation hole and a second installation hole, the first installation hole and the second installation hole are spaced apart along the first direction, the first winding member passes through the two first installation holes, and the second winding member passes through the two second installation holes.

7. The microfilament specimen preparation device of claim 6, wherein, The diameter of the micro-filament is d; The size of the first accommodating groove along the third direction is a, and 3d≤a≤5d; The size of the second accommodating groove along the third direction is b, and 3d≤b≤5d.

8. The microfilament specimen preparation device of claim 6, wherein, An engaging hole is formed on the supporting member, the engaging hole extends along the first direction, the first installation hole communicates with the engaging hole, and the size of the first installation hole along the first direction is greater than the size of the first winding member along the first direction; An elastic member is arranged in the engaging hole, and the elastic member abuts against the first winding member.

9. The microfilament specimen preparation device of claim 6, wherein, Two installation holes are formed on the base, the two installation holes are spaced apart along the third direction, and the two supporting members are inserted into the two installation holes respectively.

10. The microfilament specimen preparation device of claim 6, wherein, The slide groove includes a first groove portion and a second groove portion, each extending in the second direction, the first groove portion having a smaller dimension in the third direction than the second groove portion; The slide member includes a first slide portion and a second slide portion, the first slide portion having a smaller dimension in the third direction than the second slide portion, the second slide portion being disposed in the second groove portion, a portion of the first slide portion being disposed in the first groove portion.

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