Preparation device of fine filament sample for glow discharge mass spectrometer

Abstract

The utility model provides a preparation device of a fine filament sample for a glow discharge mass spectrometer, which is characterized in that a lifting motor is arranged in a base and is used for controlling a lifting platform to move up and down; a power switch, a thread twisting button, a thread rolling button, an emergency stop button and a PLC display screen are arranged in front of the base; the left side of the base is connected with a yarn guide, and lifting guide rail assemblies are connected to the two sides of the base and penetrate through the two sides of the lifting table. The lower surface and the upper surface of the front end of the lifting platform are respectively connected with a rotating motor and a die changing base, the rotating motor is used for driving the upper die to rotate during thread rolling and thread twisting, a die changing handle is arranged at the upper end of the die changing base, and the conical thread rolling lower locking die or the thread twisting lower locking die can be replaced according to sample preparation requirements. The device has the advantages of being easy to operate, high in preparation efficiency and not prone to contamination. Sample gaps are guaranteed to be consistent, test signals are guaranteed to be stable, practicability is high, and a yarn guide is arranged, so that stress is uniform in the yarn rolling process, and friction loss is avoided.

Description

Technical Field

[0001] This utility model relates to the field of glow discharge mass spectrometry analysis in chemical composition analysis, specifically to a sample preparation device for microfilament materials used in glow discharge mass spectrometry. Background Technology

[0002] Material chemical composition analysis is an important part of physicochemical testing. Glow discharge mass spectrometry, as the most effective method for trace element detection, has advantages such as direct solid sample introduction, full element analysis, fast detection speed, wide detection range, weak matrix effect, stable ion source, and excellent gas element analysis capability. It is widely used in various industries such as pure metals, alloys, ceramics, and coatings, and plays an irreplaceable role, especially in the fields of high-purity metals and semiconductors. It also provides an important basis for the selection of raw materials for products used in various fields.

[0003] In practical applications, glow discharge mass spectrometry tests solid samples in various forms. Fine filamentary samples are a typical example; due to their extreme thinness, they cannot be directly placed in the fixture for clamping and testing. Therefore, they need to be prepared into rod-shaped or sheet-shaped samples for experimentation. Manually rotating the filaments into rod-shaped or sheet-shaped samples will result in the following problems:

[0004] 1. Uneven sample preparation and irregular shape and size can weaken the matrix signal, leading to unstable discharge;

[0005] 2. Inconsistent dimensions lead to tedious and inaccurate repeated measurements;

[0006] 3. Manual sample preparation can easily cause contamination and damage to the sample surface, leading to higher than normal levels of the analyte.

[0007] 4. Manual sample preparation has problems such as long preparation time, low efficiency, and low safety. Utility Model Content

[0008] To address the aforementioned problems, this invention provides a device for preparing microfilament samples for glow discharge mass spectrometry. This device can prepare microfilament samples into rods or sheets according to required dimensions, with adjustable size. Regardless of the thickness of the filaments, the spacing is consistent, the shape is uniform and regular, and the operation is simple and efficient.

[0009] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0010] A device for preparing microfilament samples for glow discharge mass spectrometry, characterized in that: the device comprises a base, a lifting motor, an emergency stop button, a wire winding button, a wire twisting button, a power switch, a PLC display screen, a rotary motor, a wire guide, a wire winding sample, a lifting platform, a lifting guide rail assembly, a mold changing base, a mold changing handle, a conical wire winding lower locking mold, a wire twisting lower locking mold, a sample clamping handle, a wire twisting sample, a wire twisting top plate, and a wire twisting hanging assembly, wherein:

[0011] In the device, a lifting motor is located inside the base to control the up-and-down movement of the lifting platform. A power switch, a wire-twisting button, a wire-winding button, an emergency stop button, and a PLC display screen are located at the front of the base. A wire guide is connected to the left side of the base to precisely guide and position the wire sample during preparation, ensuring uniform force and preventing frictional damage. Lifting guide rail assemblies are connected to both sides of the base, extending through both sides of the lifting platform. A lifting transmission assembly is connected to the rear of the lifting platform, allowing the platform to move up and down along the lifting guide rails via the lifting motor. A rotary motor and a mold-changing base are connected to the lower and upper front ends of the lifting platform, respectively. The rotary motor is used to wind the wire into… When the sample is formed by twisting and turning, the upper mold rotates. The mold changing base is equipped with a mold changing handle, which can be used to change the conical winding lower locking mold or the twisting lower locking mold according to the sample preparation needs. A flat winding sample of a specific shape is connected to a wire guide at one end and inserted into the hole of the conical winding lower locking mold at the other end. The rotation of the rotary motor and the up and down movement of the lifting platform can realize the preparation of the flat winding sample. The upper end of the lifting guide rail is equipped with a top plate, and the lower end of the top plate is connected to the twisting and hanging assembly. The lower end of the twisting and hanging assembly is connected to the twisting sample, and the other end of the twisting sample is connected to the twisting lower locking mold and fixed with the sample clamping handle. The rotation of the rotary motor can realize the preparation of the pin-shaped twisting sample.

[0012] Preparation of the Flat-shaped coiled sample: For a filament sample of a specific shape, the straight end is inserted into the guide wire through the hole of the tapered coiling die on the curved side. A rotary motor rotates the tapered coiling die, and a lifting motor drives the lifting transmission assembly, causing the lifting platform to move upwards along the lifting guide rail. This allows the coiled sample to be wound around the tapered coiling die. After coiling, the sample is removed and flattened, ready for testing.

[0013] The tapered filament winding die has holes at different diameters, which can produce filament winding samples of different diameters according to requirements.

[0014] The lifting speed of the lifting motor and the rotation speed of the rotary motor are both adjustable; the speed can be set on the PLC display screen according to the filament samples of different diameters to ensure the consistency of the gap between filament samples of different diameters.

[0015] Preparation of the pin-shaped twisted wire sample: Replace the mold on the mold changing base with a twisting lower locking mold, and control the length of the twisted wire sample by adjusting the lifting platform; for the bent sample, hang one bent end on the twisting wire hanging assembly, and fix the other end through the sample clamping handle; the rotating motor drives the conical twisting lower locking mold to rotate together, thus realizing the preparation of the twisted wire sample. After twisting is completed, remove the sample and prepare it for testing.

[0016] The number of twisted wire samples is determined by the diameter of the twisted wire sample, and multiple wires can be twisted together.

[0017] The device is equipped with an emergency stop button, which can immediately stop operation if it is not operated properly.

[0018] The beneficial effects of this utility model are as follows:

[0019] This instrument can prepare pin-shaped twisted wire samples and flat-shaped coiled wire samples from microfilament samples used in glow discharge mass spectrometry. The operation is simple, the preparation efficiency is high, and it is not prone to contamination. The PLC program can be set according to the diameter of the microfilament sample to adjust the rotation speed and the speed of the lifting platform's vertical movement, ensuring consistent sample gaps and stable test signals. The coiling die has holes at different diameters, allowing for the preparation of flat-shaped coiled wire samples of different diameters as needed, making it highly practical. A wire guide is included to ensure uniform force during the coiling process and prevent frictional wear. Attached Figure Description

[0020] Figure 1 Three-dimensional sample preparation apparatus for glow discharge mass spectrometer with fine filaments Figure 1

[0021] Figure 2 Three-dimensional sample preparation apparatus for glow discharge mass spectrometer with fine filaments Figure 2 ;

[0022] Figure 3 Side view of the microfilament sample preparation apparatus for glow discharge mass spectrometry. Figure 1 ;

[0023] Figure 4 Side view of the microfilament sample preparation apparatus for glow discharge mass spectrometry. Figure 2 ;

[0024] Figure 5 A front view of the microfilament sample preparation apparatus for glow discharge mass spectrometry;

[0025] Figure 6 Rear view of the microfilament sample preparation apparatus for glow discharge mass spectrometry;

[0026] Figure 7 A top view of the microfilament sample preparation apparatus for glow discharge mass spectrometry;

[0027] Figure 8 Twisted wire structure for microfilament sample preparation apparatus for glow discharge mass spectrometer Figure 1 ;

[0028] Figure 9 Twisted wire structure for microfilament sample preparation apparatus for glow discharge mass spectrometer Figure 2 ;

[0029] Figure 10 The images show the morphology of the coiled and twisted wire samples from the microfilament sample preparation device used in glow discharge mass spectrometry.

[0030] In the diagram: 1. Rotary motor, 2. Lifting transmission assembly, 3. Wire guide, 4. Wire winding sample, 5. Conical wire winding lower locking mold, 6. Wire twisting and hanging assembly, 7. Lifting guide rail, 8. Lifting platform, 9. Base, 10. Lifting motor, 11. Emergency stop button, 12. Wire winding button, 13. Wire twisting button, 14. Power switch, 15. PLC display screen, 16. Top plate, 17. Wire twisting sample, 18. Sample clamping handle, 19. Wire twisting lower locking mold, 20. Mold changing handle, 21. Mold changing base. Detailed Implementation

[0031] The present invention will be further described below with reference to the embodiments and the accompanying drawings, but is not limited thereto.

[0032] Example 1

[0033] like Figures 1-9 As shown, a microfilament sample preparation device for glow discharge mass spectrometry is provided. The device consists of a rotation and lifting system, a switch and display combination, a wire winding system, a wire twisting system, a base 9, a top plate 16, a mold changing handle 20, and a mold changing base 21.

[0034] The rotation and lifting system consists of a rotary motor 1, a lifting motor 10, a lifting transmission assembly 2, a lifting guide rail assembly 7, and a lifting platform 8, and is used to prepare flat-shaped coiled wire samples and pin-shaped twisted wire samples.

[0035] The switch and display assembly consists of an emergency stop button 11, a wire winding button 12, a wire tightening button 13, a power switch 14, and a PLC display screen 15, all of which are mounted on the base 9.

[0036] The filament winding system consists of a filament guide 3 located on the left side of the base 9, a filament winding sample 4, and a tapered filament winding lower locking mold 5 located on the mold changing base 21, thereby realizing the preparation of a flat filament winding sample.

[0037] The wire twisting system consists of a wire twisting and hanging assembly 6 set on the top plate 16, a wire twisting sample 17, a sample clamping handle 18, and a wire twisting lower locking mold 19 set on the mold changing base 21, thereby realizing the preparation of a pin-shaped wire twisting sample.

[0038] Example 2

[0039] The device was used to prepare flat-shaped coiled filament samples and pin-shaped twisted filament samples from glow discharge mass spectrometry samples. The specific steps are as follows:

[0040] Flat coiled wire sample: First press Figure 10 The test sample 4 is required to be bent into a desired shape. The bent end is inserted into the hole of the required diameter in the tapered winding lower locking mold 5, and the other straight end passes through the wire guide 3. After fixing the test sample 4, the rising speed and rotation speed of the tapered winding lower locking mold 5 are set on the PLC display screen 15 according to the diameter of the sample. Click the winding button 12 on the base 9. At the same time, the rotary motor 1 drives the tapered winding lower locking mold 5 to start rotating, and the lifting motor 10 starts running, driving the lifting transmission component 2, the lifting platform 8 and the tapered winding lower locking mold 5 to move upward along the lifting guide rail 7. After the sample preparation is completed, click the winding button 12 again to remove both ends of the test sample 4 and remove it completely for testing.

[0041] Pin-shaped twisted wire sample: First press Figure 10 The test sample 17 is required to be bent into the desired shape. Loosen the mold changing handle 20 and replace the tapered winding lower locking mold 5 with the winding lower locking mold 19. The lifting motor 10 drives the lifting transmission component 2, the lifting platform 8 and the winding lower locking mold 19 to move up and down along the lifting guide rail 7. Adjust the position according to the sample length requirements, hang one bent end on the winding hanging component 6, and insert the other end into the winding lower locking mold 19. Lock the winding sample 17 with the sample clamping handle 18. Click the winding button 13 on the base 9. The rotating motor 1 drives the winding lower locking mold 19 to start rotating. After the winding is completed, click the winding button 13 again, unscrew the sample clamping handle 18, and remove the sample for testing.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A device for preparing microfilament samples for glow discharge mass spectrometry, characterized in that: Includes a base, lifting motor, emergency stop button, wire winding button, wire twisting button, power switch, PLC display screen, rotary motor, wire guide, wire winding sample, lifting platform, lifting guide rail assembly, mold changing base, mold changing handle, conical wire winding lower locking mold, wire twisting lower locking mold, sample clamping handle, wire twisting sample, wire twisting top plate, and wire twisting hanging assembly; The system includes: a lifting motor housed inside the base to control the vertical movement of the lifting platform; a power switch, wire twisting button, wire winding button, emergency stop button, and PLC display screen at the front of the base; a wire guide connected to the left side of the base for precise guidance and positioning during wire winding sample preparation, ensuring even force distribution and preventing frictional damage; lifting guide rail assemblies connecting both sides of the base, extending across both sides of the lifting platform; a lifting transmission assembly connected to the rear of the lifting platform, which is moved up and down along the lifting guide rails by the lifting motor; and rotary motors and mold changing bases connected to the lower and upper front ends of the lifting platform, with the rotary motors used for wire winding samples. When twisting the wire to form a sample, the upper mold rotates. The mold changing base has a mold changing handle at the top, which can be used to change the conical winding wire lower locking mold or the twisting wire lower locking mold according to the sample preparation needs. A flat-shaped winding wire sample is connected to a wire guide at one end and inserted into the hole of the conical winding wire lower locking mold at the other end. The rotation of the rotary motor and the up and down movement of the lifting platform can realize the preparation of the flat-shaped winding wire sample. The upper end of the lifting guide rail has a top plate, and the lower end of the top plate is connected to the twisting wire hanging assembly. The lower end of the twisting wire hanging assembly is connected to the twisting wire sample, and the other end of the twisting wire sample is connected to the twisting wire lower locking mold and fixed with the sample clamping handle. The rotation of the rotary motor can realize the preparation of the pin-shaped twisting wire sample.

2. The apparatus for preparing microfilament samples for glow discharge mass spectrometry according to claim 1, characterized in that: The tapered filament winding die has holes at different diameters, which can produce filament winding samples of different diameters according to requirements.

3. The apparatus for preparing microfilament samples for glow discharge mass spectrometry according to claim 1, characterized in that: The lifting speed of the lifting motor and the rotation speed of the rotary motor are both adjustable; the speed can be set on the PLC display screen according to the filament samples of different diameters to ensure the consistency of the gap between filament samples of different diameters.

4. The apparatus for preparing microfilament samples for glow discharge mass spectrometry according to claim 1, characterized in that: The device for preparing microfilament samples for the glow discharge mass spectrometer is equipped with an emergency stop button, which can immediately stop operation if improperly operated.

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