Yarn sample preparation device
By designing a yarn sample sample preparation device including an outer solid frame, a sample stage, conductive tape and a blade, the problem of deformation of the yarn sample during trimming after the sample is patched is solved, and the sample preparation and good observation effect are achieved.
Patent Information
- Application Number
- CN202422182900.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The yarn sample may easily deform the end of the sample during trimming with scissors after the sample is pasted, affecting the subsequent observation effect.
A sample preparation device for yarn samples is designed, including an outer solid frame, a removable yarn sample body, a sample table, a conductive tape, a distance sensor and a cutable blade. Cut the end of the yarn sample by driving the blade and fixing the sample with conductive tape and arc-shaped slots to ensure the cut surface is flush and avoid unnecessary deformation.
It effectively avoids deformation caused by scissor trimming during the sample preparation process, ensuring the flatness and observation effect of the sample.
Smart Images
Figure CN223051228U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of yarn sample preparation, and particularly relates to a device for preparing yarn samples. Background Art
[0002] A scanning electron microscope is a large-scale precision instrument for observing micro-area morphology, which has the advantages of high image resolution, high magnification, large depth of field, good fidelity, and simple sample preparation. Therefore, it is applied in many fields such as materials, geology, and biology, and is one of the most widely used microscopic analysis instruments. For high-precision sample preparation, combined with a scanning electron microscope, SEM sample preparation is formed. SEM sample preparation uses secondary electrons excited by the interaction between high-energy incident electrons emitted by an electron gun and a sample to form an image, reflecting the surface morphology of the sample. Therefore, the microscopic morphology of the surface or cross-section of different types of samples can be observed, such as solid samples like blocks, powders, thin films, and yarns. For yarn samples, in SEM sample preparation, the yarn samples are generally directly fixed on carbon conductive tapes, and then the redundant parts at the ends are cut off. However, during the process of trimming the samples with scissors after pasting the samples, the deformation of the sample ends will occur, which will affect the subsequent observation effect.
[0003] Therefore, it is very necessary to invent a device for preparing yarn samples to solve the above problems. Summary of the Utility Model
[0004] In order to solve the deficiencies of the prior art, the purpose of the utility model is to provide a device for preparing yarn samples, which solves the problem that the deformation of the sample ends will occur during the process of trimming the yarn samples with scissors after pasting the samples in the prior art, thereby affecting the subsequent observation effect.
[0005] In order to achieve the above objectives, the utility model adopts the following technical solutions:
[0006] A device for preparing yarn samples includes an outer fixed frame and a yarn sample body that is detachably threaded through the left and right side walls of the outer fixed frame and can be straightened. A sample stage that can control the sliding distance is longitudinally slidably arranged in the part of the outer fixed frame below the yarn sample body. Conductive tapes that can be detachably attached and can contact the bottom side of the circumferential side wall of the yarn sample body are respectively arranged on the left and right sides of the top surface of the sample stage. A distance sensor that can sense the longitudinal distance between the sample stage and the yarn sample body is installed in the middle of the top surface of the sample stage. Blades that can cut the ends of the yarn sample are synchronously longitudinally slidably arranged on the left and right side walls of the sample stage. A pressing plate that can control the sliding distance is longitudinally slidably arranged in the part of the outer fixed frame above the yarn sample. An arc-shaped card slot that can contact the bottom side of the circumferential side wall of the yarn sample body is formed on the bottom surface of the pressing plate.
[0007] After the conductive tape contacts the yarn sample body, the two blades move synchronously upward longitudinally and cut the end of the yarn sample body.
[0008] As a preferred solution of the present utility model, a lifting table capable of automatic lifting control is provided at the center of the inner bottom end of the outer fixed frame, and the sample table is detachably installed at the center of the top end of the lifting table.
[0009] As a preferred solution of the present utility model, a fixing frame is detachably sleeved on the lifting part of the lifting table, and lower telescopic parts capable of longitudinal sliding are installed at both end parts of the top surface of the fixing frame, and the two blades are respectively detachably installed at the top ends of the corresponding lower telescopic parts.
[0010] As a preferred solution of the present utility model, through holes for the yarn sample body to pass through horizontally are provided at the adapted positions on the left side wall and the right side wall of the outer fixed frame.
[0011] As a preferred solution of the present utility model, an upper telescopic part is installed at the center of the inner top end of the outer fixed frame, and the pressing plate is detachably installed at the center of the bottom end of the upper telescopic part.
[0012] As a preferred solution of the present utility model, side grooves for the conductive tape to be placed in a fitting manner are provided on both the left side and the right side of the top surface of the sample table, and the top surfaces of the conductive tape, the distance sensor and the sample table are kept flush.
[0013] As a preferred solution of the present utility model, a control module is provided inside the outer fixed frame, and the control module can receive the instructions of the distance sensor and drive the lifting table, the lower telescopic part and the upper telescopic part to slide longitudinally.
[0014] In the above technical solution, the technical effects and advantages provided by the present utility model are:
[0015] In this utility model, the yarn sample body is straightened and threaded between the left side wall and the right side wall of the outer fixed frame, avoiding the failure of subsequent sample preparation caused by the bending and deformation of the yarn sample body. During the process of straightening the yarn sample body and preparing the sample, the driving pressing plate moves vertically downward to make the yarn sample body snap into the arc-shaped card slot. Subsequently, the sample table is driven to move upward, and the longitudinal distance from the yarn sample body is sensed by the distance sensor until the conductive tape contacts the bottom side of the circumferential side wall of the yarn sample body. Then, the sample table is further driven to move upward so that the conductive tape adheres to the bottom side of the circumferential side wall of the yarn sample body. That is, the top side of the circumferential side wall of the yarn sample body is fixed by the pressing plate and the arc-shaped card slot on its bottom surface, and the bottom side of the circumferential side wall of the yarn sample body is fixed by the sample table and the conductive tapes on both sides. Subsequently, the two blades on the left and right sides are driven to move upward synchronously to complete the cutting of the ends of the yarn sample body. On the premise of ensuring the flatness of the cut surface of the yarn sample body, the upward cutting stress of the blade is avoided from causing unnecessary deformation of the yarn sample body, thus avoiding affecting subsequent observation. Description of the Drawings
[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0017] Figure 2 is a schematic front view structure diagram of the present utility model;
[0018] Figure 3 is a schematic diagram of the overall structure of the present utility model with some components hidden.
[0019] Description of the Reference Numerals:
[0020] 1. Outer fixed frame; 2. Lifting table; 3. Sample table; 4. Distance sensor; 5. Side groove; 6. Conductive tape; 7. Fixed frame; 8. Lower telescopic member; 9. Blade; 10. Upper telescopic member; 11. Pressing plate; 12. Arc-shaped card slot; 13. Through hole; 14. Yarn sample body. Detailed Embodiment
[0021] The present utility model will be further described below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model and cannot be used to limit the protection scope of the present utility model.
[0022] The present utility model provides as Figures 1 - 3A sample preparation device for a yarn sample as shown includes an outer fixed frame 1 and a yarn sample body 14 that is detachably threaded between the left and right side walls of the outer fixed frame 1 and can be straightened. A sample stage 3 that can control the sliding distance is longitudinally slidably arranged inside the outer fixed frame 1 below the yarn sample body 14. Conductive tapes 6 that can be detachably and adhesively connected and can contact the bottom side of the peripheral side wall of the yarn sample body 14 are arranged on the left and right sides of the top surface of the sample stage 3. A distance sensor 4 that can sense the longitudinal distance between the sample stage 3 and the yarn sample body 14 is installed in the middle of the top surface of the sample stage 3. Blades 9 that can cut the ends of the yarn sample are longitudinally slidably arranged on the left and right side walls of the sample stage 3 synchronously. A pressing plate 11 that can control the sliding distance is longitudinally slidably arranged inside the outer fixed frame 1 above the yarn sample. An arc-shaped card slot 12 that can contact the bottom side of the peripheral side wall of the yarn sample body 14 is formed on the bottom surface of the pressing plate 11; after the conductive tape 6 contacts the yarn sample body 14, the two blades 9 move upward longitudinally synchronously and cut the ends of the yarn sample body 14. Since the blades 9 are in contact with the left and right side walls of the sample stage 3 and move longitudinally, the left and right distances between the two blades 9 are equal to the left and right lengths of the sample stage 3, so that the cutting length of the yarn sample body 14 is consistent with the left and right lengths of the sample stage 3.
[0023] A lifting stage 2 that can perform automatic lifting control is arranged at the center of the bottom end inside the outer fixed frame 1. The sample stage 3 is detachably installed at the center of the top end of the lifting stage 2. A fixing frame 7 is detachably sleeved on the lifting part of the lifting stage 2. Upper telescopic members 8 that can perform longitudinal sliding are installed at the end parts on both sides of the top surface of the fixing frame 7. The two blades 9 are respectively detachably installed at the top ends of the corresponding upper telescopic members 8. The longitudinal movement of the lifting stage 2 can change the longitudinal distance between the sample stage 3 and the yarn sample body 14, and the distance from the yarn sample body 14 is sensed by the distance sensor 4.
[0024] Through holes 13 for the yarn sample body 14 to pass through horizontally are formed at the adapted positions on the left and right side walls of the outer fixed frame 1. By applying a horizontal pulling force on both sides outside the outer fixed frame 1 to the yarn sample body 14, the yarn sample body 14 can be straightened inside the outer fixed frame 1.
[0025] An upper telescopic member 10 is installed at the center of the top end inside the outer fixed frame 1. The pressing plate 11 is detachably installed at the center of the bottom end of the upper telescopic member 10. The upper telescopic member 10 can change the longitudinal distance between the pressing plate 11 and the yarn sample body 14, so that the yarn sample body 14 can be clamped into the arc-shaped card slot 12.
[0026] On the left and right sides of the top surface of the sample stage 3, there are edge grooves 5 for the conductive tape 6 to be adhesively placed. The top surface of the conductive tape 6, the top surface of the distance sensor 4, and the top surface of the sample stage 3 are flush. A control module is arranged inside the outer fixed frame 1. The control module can receive the instructions of the distance sensor 4 and drive the lifting stage 2, the lower telescopic member 8, and the upper telescopic member 10 to slide longitudinally. When the distance sensor 4 contacts the yarn sample body 14, at this time, the conductive tape 6 also abuts against the bottom side of the circumferential side wall of the yarn sample body 14. At this time, the control module further drives the lifting stage 2 to move upward, so that the conductive tape 6 adheres to the bottom side of the circumferential side wall of the yarn sample body 14 and forms a clamping and fixing of the yarn sample body 14 with the abutting plate 11.
[0027] In the present utility model, the yarn sample body 14 is straightened and passed through between the left side wall and the right side wall of the outer fixed frame 1 to prevent the yarn sample body 14 from being bent and deformed, resulting in subsequent sample preparation failure. During the process of straightening the yarn sample body 14 and preparing the sample, by driving the abutting plate 11 to move longitudinally downward, the yarn sample body 14 is clamped into the arc-shaped card slot 12. Subsequently, by driving the sample stage 3 to move upward and sensing the longitudinal distance from the yarn sample body 14 through the distance sensor 4 until the conductive tape 6 contacts the bottom side of the circumferential side wall of the yarn sample body 14, and then further driving the sample stage 3 to move upward so that the conductive tape 6 adheres to the bottom side of the circumferential side wall of the yarn sample body 14, that is, the top side of the circumferential side wall of the yarn sample body 14 is fixed by the abutting plate 11 and the arc-shaped card slot 12 on its bottom surface, and the bottom side of the circumferential side wall of the yarn sample body 14 is fixed by the sample stage 3 and the conductive tapes 6 on both sides. Subsequently, by driving the two blades 9 on the left and right sides to move upward synchronously, the cutting of the ends of the yarn sample body 14 is completed. On the premise of ensuring that the cut surface of the yarn sample body 14 is flat, the upward cutting stress of the blade 9 is prevented from causing unnecessary deformation of the yarn sample body 14, avoiding affecting subsequent observation.
[0028] The above is only the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and deformations can still be made, and these improvements and deformations should also be regarded as the protection scope of the present utility model.
Claims
1. A yarn sample preparation device, characterized in that: The invention comprises an outer fixed frame (1) and a yarn sample body (14) which is detachably inserted between the left and right side walls of the outer fixed frame (1) and can be straightened. A sample table (3) with a controllable sliding distance is longitudinally slidably arranged in a portion of the outer fixed frame (1) located below the yarn sample body (14). A conductive tape (6) which can contact the bottom side of the peripheral side wall of the yarn sample body (14) is detachably attached to the left and right sides of the top surface of the sample table (3). A distance sensor (4) which can sense the longitudinal distance between the sample table (3) and the yarn sample body (14) is installed in the middle of the top surface of the sample table (3). A blade (9) which can cut the end of the yarn sample is synchronously longitudinally slidably arranged on the left and right sides of the sample table (3). A stop plate (11) with a controllable sliding distance is longitudinally slidably arranged in a portion of the outer fixed frame (1) located above the yarn sample. The bottom surface of the stop plate (11) is provided with an arc-shaped slot (12) which can contact the bottom side of the peripheral side wall of the yarn sample body (14). When the conductive tape (6) comes into contact with the yarn sample body (14), the two blades (9) move upward longitudinally synchronously and cut the end of the yarn sample body (14).
2. A yarn sample preparation device according to claim 1, characterized in that: A lifting platform (2) capable of automatic lifting control is arranged at the center of the bottom end of the outer fixed frame (1), and the sample platform (3) is detachably mounted at the center of the top end of the lifting platform (2).
3. A yarn sample preparation device according to claim 2, characterized in that: The lifting part of the lifting platform (2) is detachably sleeved with a fixing frame (7), and lower telescopic parts (8) capable of longitudinal sliding are installed at both side ends of the top surface of the fixing frame (7), and the two blades (9) are detachably installed at the top ends of the corresponding lower telescopic parts (8).
4. A yarn sample preparation device according to claim 1, characterized in that: Through holes (13) for the yarn sample body (14) to pass through laterally are provided at the matching positions of the left side wall and the right side wall of the outer fixing frame (1).
5. The yarn sample preparation device according to claim 3, characterized in that: An upper telescopic member (10) is installed at the top center of the inner part of the outer fixed frame (1), and the abutment plate (11) is detachably installed at the bottom center of the upper telescopic member (10).
6. A yarn sample preparation device according to claim 1, characterized in that: The left and right sides of the top surface of the sample stage (3) are provided with side grooves (5) for the conductive tape (6) to be placed in contact with the top surface, and the top surface of the conductive tape (6), the top surface of the distance sensor (4) and the top surface of the sample stage (3) are kept flush.
7. A yarn sample preparation device according to claim 5, characterized in that: A control module is arranged inside the outer fixed frame (1), and the control module can receive instructions from the distance sensor (4) and drive the lifting platform (2), the lower telescopic member (8) and the upper telescopic member (10) to slide longitudinally.