Glow discharge mass spectrometry detection system and method for non-conductor powder

Abstract

The invention provides a glow discharge mass spectrometry detection system and method for non-conductor powder, and the system comprises a conversion device which is disposed at the top of a side plate and is used for converting a use device; the glue brushing device is arranged at the bottom of the conversion device and is used for brushing glue to the bottom of the groove of the graphite block; the rubberizing device is arranged at the bottom of the conversion device and is used for rubberizing a double-faced adhesive tape to the side wall of the groove of the graphite block; the flattening device is arranged at the bottom of the conversion device and is used for compacting the sample powder filled in the groove of the graphite block; the dust blowing device is arranged on one side of the flattening device and is used for blowing away redundant sample powder; the sample feeding device is arranged on one side of the side plate and is used for feeding sample powder into a graphite block groove, through cooperation of all the devices, the sample mixing uniformity is guaranteed, and the phenomenon of uneven sputtering is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of sample analysis and detection, and in particular to a glow discharge mass spectrometry detection system and method for non-conductor powder. Background Art

[0002] Glow discharge mass spectrometry (GDMS) is a technique that uses an ion source generated by glow discharge to perform direct mass spectrometry analysis on solid materials. This technique uses an inert gas to ionize and impact the sample surface under high pressure, causing the sample atoms to sputter and ionize, and then the mass spectrometer detects these ions to analyze the composition of the material. In the glow discharge mass spectrometry (GDMS) detection of non-conductive powders, the traditional method faces challenges because the powder itself is not conductive. To solve this problem, an innovative sample preparation method is adopted, that is, the non-conductive powder is pressed into a graphite mold. The high conductivity of graphite is used as a substrate, which effectively solves the instability and low sensitivity of non-conductive powders during the discharge process. By optimizing the discharge conditions and sample preparation technology, we ensure the uniform distribution and effective sputtering of the sample during the test, thereby improving the accuracy and reliability of GDMS detection.

[0003] Chinese patent CN116223143A discloses a sample preparation method for glow discharge mass spectrometry testing, which comprises placing a plurality of metal strips on the surface of a mold, placing adjacent metal strips in an alternating manner, pouring sample particles into the area enclosed by the plurality of metal strips, pouring graphite powder onto the surface of the mold, and completely covering the metal strips and the area enclosed by the metal strips, moving the mold into a tablet press, pressing to obtain a molded sample, and finally taking out the molded sample, and performing a glow discharge mass spectrometry test with the bottom surface of the molded sample as a sputtering area. The sample preparation method utilizes the metal strips to constrain the movement of the sample particles during the pressing process, and utilizes the conductive ability of the metal strips to make the signal as large as possible during the sputtering process, thereby solving the problems of difficulty in preparing samples of large-particle powders and small-size particle samples, and the inability to perform normal glow discharge testing on non-conductor samples.

[0004] However, the applicant found in actual use that the mixed graphite powder tableting method would cause multiple small-sized irregular samples to be dispersed during the pressing process and might not be sputtered at the same time, which would cause the test signal intensity to be too low and reduce data accuracy. Summary of the invention

[0005] The purpose of the present invention is to provide a glow discharge mass spectrometry detection system for non-conductor powders in view of the shortcomings of the prior art, which realizes uniform filling of sample powders by cooperating with a glue sticking device and a sample feeding device, thereby solving the problem of too low test signal caused by difficulty in simultaneous sputtering.

[0006] To achieve the above object, the present invention provides the following technical solutions: A glow discharge mass spectrometry detection system for non-conductor powders, comprising: A conversion device, which is disposed on the top of the side panel and is used to change the use device; A glue brushing device, which is arranged at the bottom of the conversion device and is used to brush glue to the bottom of the graphite block groove; A gluing device, which is arranged at the bottom of the conversion device and is used to stick double-sided tape to the side wall of the graphite block groove; A flattening device, which is disposed at the bottom of the conversion device and is used to compact the sample powder filled in the groove of the graphite block; a dust blowing device, which is arranged on one side of the flattening device and is used to blow away excess sample powder; a sample feeding device, which is arranged on one side of the side plate and is used to feed the sample powder into the groove of the graphite block; A pushing device, which is disposed at the bottom of the carrier plate and is used to push out the graphite block; During the sample preparation process, the conversion device first switches the glue brushing device and the glue sticking device to the top of the graphite block, and respectively brushes glue on the bottom of the graphite block groove and sticks double-sided tape on the side wall. Then the sample feeding device fills the sample powder into the graphite block groove, and finally it is flattened by the flattening device. After the dust blowing device blows away the excess sample powder, the sample preparation is completed, and the graphite block can be pushed out by the pushing device.

[0007] Preferably, the conversion device comprises: A lifting mechanism, wherein the lifting mechanism is disposed on the top of the side panel; A rotating mechanism is arranged on one side of the lifting mechanism.

[0008] The lifting mechanism comprises: a first sliding bar, the first sliding bar being arranged on the top of the side plate; A top plate, the top plate being arranged on the top of the first sliding rod; A first sliding plate, wherein the first sliding plate is sleeved on an outer side of the first sliding rod; A lifting motor, the lifting motor is installed on the top of the top plate; A first screw rod, one end of which is drivingly connected to the output shaft of the lifting motor, and the first screw rod is also inserted into the interior of the first sliding plate.

[0009] The rotating mechanism comprises: A U-shaped plate, the U-shaped plate being arranged on one side of the first sliding plate; A rotating motor, the rotating motor is mounted on the top of the U-shaped plate; A connecting shaft, one end of which is drivingly connected to the output shaft of the rotating motor; A support plate is arranged at the bottom end of the connecting shaft.

[0010] Preferably, the glue brushing device comprises: A glue brushing motor, the glue brushing motor is installed on the top of the support plate; A first connecting rod, one end of which is drivingly connected to the output end of the glue-brushing motor; A first mounting plate, wherein the first mounting plate is disposed at a bottom end of the first connecting rod; A glue bottle, the glue bottle is installed at the bottom of the first installation piece; A liquid outlet valve, the liquid outlet valve is arranged on the liquid outlet pipe of the glue bottle; A glue brush is connected to the liquid outlet pipe of the glue bottle.

[0011] Preferably, the glue sticking device comprises: A rubber-coated motor, the rubber-coated motor is mounted on the top of the support plate; A second connecting rod, one end of which is drivingly connected to the output end of the rubber-attached motor; A second mounting plate, the second mounting plate being arranged at the bottom of the second connecting rod; A fixing rod, the fixing rod being arranged at the bottom of the second mounting piece; A chassis, the chassis being arranged at the bottom of the fixing rod; A rubber support motor, which is installed on the top of the chassis; A second screw rod, one end of which is drivingly connected to the output end of the rubber supporting motor; A thread sleeve, the thread sleeve being sleeved on the outer side of the second threaded rod; A first fixing block, wherein the first fixing block is arranged on the outer side of the silk sleeve; A connecting plate, one end of which is rotatably connected to the first fixing block; a second sliding bar, the second sliding bar being arranged in a groove at the bottom of the chassis; A first sliding block, wherein the first sliding block is sleeved on the outer side of the second sliding rod and is slidably connected to the inside of the groove; A second fixing block, which is disposed at the bottom of the first sliding block and is rotatably connected to one end of the connecting plate; A support rod, the support rod is arranged at the bottom of the first sliding block; a third sliding rod, the third sliding rod being arranged in a groove at the bottom of the chassis; A second sliding block, the second sliding block is sleeved on the outer side of the third sliding rod and is slidably connected to the inside of the groove; a first spring, wherein the first spring is sleeved on the outer side of the third sliding rod, and one end of the first spring abuts against one side of the second sliding block; A rotating rod, the rotating rod is arranged at the bottom of the second sliding block; A sleeve, the sleeve being sleeved on the rotating rod; A first limiting piece, wherein the first limiting piece is arranged at the bottom of the second screw rod; A connecting ring is arranged at the bottom of the first limiting piece.

[0012] Preferably, the flattening device comprises: A flattening motor, the flattening motor is installed on the top of the support plate; A third connecting rod, one end of which is drivingly connected to the output end of the flattening motor; A third mounting plate, the third mounting plate being arranged at the bottom end of the third connecting rod; a fourth sliding bar, the fourth sliding bar being arranged at the bottom of the third mounting piece; a second limiting piece, wherein the second limiting piece is arranged at the bottom end of the fourth sliding rod; a second spring, wherein the second spring is sleeved on the outer side of the fourth sliding rod; a third sliding block, the third sliding block being sleeved on the outer side of the fourth sliding bar and abutting against one end of the second spring; A flattening roller is arranged at the bottom of the third sliding block.

[0013] Preferably, the dust blowing device comprises: An extension plate, the extension plate being arranged on one side of the third sliding block; an air pump, the air pump being mounted on the top of the extension plate; A blowing pipe, one end of which is arranged at the air outlet of the air pump.

[0014] Preferably, the sample delivery device comprises: A translation mechanism, wherein the translation mechanism is arranged on one side of the side plate; A stirring barrel, wherein the stirring barrel is arranged on the translation mechanism; A stirring motor, the stirring motor is installed on the top of the stirring barrel; A stirring rod, one end of which is drivingly connected to the output end of the stirring motor; A screen, wherein the screen is arranged inside the mixing barrel; A sample delivery tube, the sample delivery tube and the stirring barrel are arranged outside the stirring barrel and have two communication ports with the stirring barrel; A sample discharging motor, the sample discharging motor is installed on the top of the sample delivery tube; A tubular body, the top of which is drivingly connected to the output end of the sample output motor, and the tubular body is provided with a through groove corresponding to the communication port of the sample delivery tube; A sample lowering tube, the interior of which is connected to one end of the sample delivery tube; A sample discharging motor, the sample discharging motor is installed on the top of the sample discharging tube; A second connecting member, one end of which is drivingly connected to an output end of the sample lowering motor; A flat discharge nozzle is sleeved on the lower sample tube and fixedly connected to the bottom of the second connecting member.

[0015] Preferably, the translation mechanism comprises: a second connecting member, the second connecting member being disposed on one side of the side plate; A flat discharge nozzle, the flat discharge nozzle is arranged at one end of the second connecting member; A translation motor, the translation motor is installed on one side of the flat discharge nozzle; A screw rod, one end of which is drivingly connected to the output end of the translation motor; A second sliding plate, the second sliding plate being sleeved on the second connecting member and the screw rod; A connecting block is arranged on one side of the second sliding plate, and one side of the connecting block is also fixedly connected to the outer side of the mixing barrel.

[0016] Preferably, the ejection device comprises: An adapter plate, the adapter plate being arranged on the top of the carrier plate; A fixing plate, the fixing plate being arranged at the bottom of the loading plate; A screw with a handle, wherein the screw with a handle is inserted into the interior of the adapter plate; A bearing, wherein the bearing is arranged on the top of the screw rod with a handle; A push-out plate is arranged on the top of the bearing.

[0017] The present invention also discloses a sample preparation method for glow discharge mass spectrometry detection of non-conductor powders adapted to a glow discharge mass spectrometry detection system for non-conductor powders, comprising: Step 1: Brush glue on the bottom: The conversion device moves the glue brushing device to the bottom of the graphite block groove and performs glue brushing operation on the bottom of the groove; Step 2: Gluing the side wall: The conversion device moves the glue brushing device into the groove of the graphite block, and the glue sticking device sticks the double-sided tape on the side wall of the groove; Step 3: Sample feeding: The sample feeding device moves to the top of the graphite block groove to fill the groove; Step 4: Flattening and blowing dust: The conversion device moves the flattening device to the top of the groove of the graphite block, flattens the sample powder in the groove, and then blows away the excess sample powder; Step 5: Pushing out the ink block: Pushing out the graphite block from the adapter plate through the pushing device, and the preparation of the sample for glow discharge mass spectrometry detection is completed.

[0018] The beneficial effects of the present invention are: (1) The present invention uses a glue brushing device and a glue sticking device to brush glue and stick double-sided tape on the bottom and side wall of the graphite block groove, thereby ensuring that the sample powder is closely attached to the graphite block and the stability of sample preparation. In particular, when sticking double-sided tape, the sample feeding device is used to unload the sample, and the backing paper of the double-sided tape is torn off circle by circle, which effectively avoids the sample powder from sticking to the upper side wall when unloading the sample, thereby hindering the subsequent sample powder from falling.

[0019] (2) The present invention uses a sieve in a sample feeding device to separate sample powder into two types of coarse and fine sample powders. When discharging the sample, the two types of sample powders are laid in staggered layers to ensure uniformity of sample mixing and avoid uneven sputtering.

[0020] In summary, the present invention has the advantages of stable sample preparation, uniform sputtering, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a left-side structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the structure of the glue brushing device of the present invention; Figure 4 It is a schematic diagram of the glue sticking device of the present invention; Figure 5 This is a schematic diagram of the structure of the rubber supporting motor of the present invention; Figure 6 This is a schematic diagram of the chassis structure of the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram at A in the middle; Figure 8 For the present invention Figure 6 The enlarged structural diagram at B in the middle; Fig. 9 is a schematic diagram of a third sliding bar structure of the present invention; Fig.10 It is a schematic diagram of the structure of the flattening device and the dust blowing device of the present invention; Fig.11 This is a schematic diagram of the structure of the second limiting piece of the present invention; Fig.12 It is a schematic cross-sectional view of the sample delivery device of the present invention; Fig.13 It is a schematic diagram of the structure of the translation mechanism of the present invention; Fig.14 This is a schematic diagram of the launching device of the present invention; Fig.15 It is the work flow chart of the present invention; In the figure: 1. conversion device; 11. lifting mechanism; 111. first slide bar; 112. top plate; 113. first sliding plate; 114. lifting motor; 115. first screw rod; 12. rotating mechanism; 121. U-shaped plate; 122. rotating motor; 123. connecting shaft; 124. supporting plate; 2. Glue brushing device; 21. Glue brushing motor; 22. First connecting rod; 23. First mounting plate; 24. Glue bottle; 25. Liquid outlet valve; 26. Glue brush; 3. Glue sticking device; 31. Glue sticking motor; 32. Second connecting rod; 33. Second mounting plate; 34. Fixed rod; 35. Chassis; 36. Glue support motor; 37. Second screw rod; 38. Sleeve; 39. First fixing block; 310. Connecting plate; 311. Second slide bar; 312. First slider; 313. Second fixing block; 314. Support rod; 315. Third slide bar; 316. Second slider; 317. First spring; 318. Rotating rod; 319. Sleeve; 320. First limit plate; 321. Connecting ring; 4. Flattening device; 41. Flattening motor; 42. Third connecting rod; 43. Third mounting plate; 44. Fourth slide bar; 45. Second limiting plate; 46. Second spring; 47. Third slide block; 48. Flattening roller; 5. Dust blowing device; 51. Extension plate; 52. Air pump; 53. Blowing pipe; 6. Sample delivery device; 61. Translation mechanism; 611. Slide rod; 612. Mounting plate; 613. Translation motor; 614. Screw rod; 615. Second sliding plate; 616. Connecting block; 62. Stirring barrel; 63. Stirring motor; 64. Stirring rod; 65. Screen; 66. Sample delivery tube; 67. Sample discharging motor; 68. Tubular body; 69. Sample discharging tube; 610. Sample discharging motor; 611. Second connecting piece; 612. Flat discharging nozzle; 7. ejection device; 71. adapter plate; 72. fixing plate; 73. screw rod with handle; 74. bearing; 75. ejection plate; 8. Base; 9. Side panels; 10. Loading plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0024] Embodiment 1 like Figure 1 to Figure 2 As shown, this embodiment provides a glow discharge mass spectrometry detection system for non-conductor powder, comprising: A conversion device 1, which is disposed on the top of the side plate 9 and is used to convert the use device; A glue brushing device 2, which is arranged at the bottom of the conversion device 1 and is used to brush glue to the bottom of the graphite block groove; A gluing device 3, which is arranged at the bottom of the conversion device 1 and is used to stick double-sided tape to the side wall of the graphite block groove; A flattening device 4, which is disposed at the bottom of the conversion device 1 and is used to compact the sample powder filled in the groove of the graphite block; a dust blowing device 5, which is arranged at one side of the flattening device 4 and is used to blow away excess sample powder; a sample feeding device 6, which is arranged at one side of the side plate 9 and is used to feed the sample powder into the groove of the graphite block; An ejection device 7, which is disposed at the bottom of the carrier plate 10 and is used to eject the graphite block; During the sample preparation process, the conversion device 1 first switches the glue brushing device 2 and the glue sticking device 3 to the top of the graphite block, and respectively brushes glue on the bottom of the graphite block groove and sticks double-sided tape on the side wall. Then the sample feeding device 6 fills the sample powder into the graphite block groove, and finally it is flattened by the flattening device 4. After the dust blowing device 5 blows away the excess sample powder, the sample preparation is completed, and the graphite block can be pushed out by the pushing device 7.

[0025] It should be noted that the side plate 9 is arranged on the top of the base 8; since the non-conductive powder is not conductive, a graphite block with a groove is selected as the base for loading the sample powder.

[0026] like Figure 1 to Figure 2 As shown, the conversion device 1 comprises: A lifting mechanism 11, wherein the lifting mechanism 11 is disposed on the top of the side plate 9; The rotating mechanism 12 is disposed on one side of the lifting mechanism 11 .

[0027] The lifting mechanism 11 comprises: A first sliding bar 111, wherein the first sliding bar 111 is disposed on the top of the side plate 9; A top plate 112, wherein the top plate 112 is disposed on the top of the first sliding rod 111; A first sliding plate 113, wherein the first sliding plate 113 is sleeved on the outer side of the first sliding rod 111; A lifting motor 114, wherein the lifting motor 114 is installed on the top of the top plate 112; The first screw rod 115 has one end drivingly connected to the output shaft of the lifting motor 114 , and the first screw rod 115 is also inserted into the first sliding plate 113 .

[0028] The rotating mechanism 12 comprises: A U-shaped plate 121, wherein the U-shaped plate 121 is disposed on one side of the first sliding plate 113; A rotating motor 122, wherein the rotating motor 122 is installed on the top of the U-shaped plate 121; A connecting shaft 123, one end of which is drivingly connected to the output shaft of the rotating motor 122; The support plate 124 is disposed at the bottom end of the connecting shaft 123 .

[0029] It should be noted that: a threaded hole matched with the first screw rod 115 is opened on the first sliding plate 113, the lifting motor 114 and the rotating motor 122 are both stepping motors, and the angle between the support plates 124 is 120 degrees.

[0030] In detail: the lifting motor 114 controls the first sliding plate 113 to rise or fall by controlling the rotation of the first screw rod 115, thereby driving the U-shaped plate 121 to achieve lifting and lowering movement. The rotating motor 122 controls the positions of the glue brushing device 2, the glue sticking device 3 and the flattening device 4 by rotation. When a certain device is needed, the required device is moved to the graphite block for use through the cooperation of the lifting mechanism 11 and the rotating mechanism 12.

[0031] like Figures 1 to 3 As shown, the glue brushing device 2 includes: A glue-brushing motor 21, wherein the glue-brushing motor 21 is mounted on the top of the support plate 124; A first connecting rod 22, one end of which is drivingly connected to the output end of the glue-brushing motor 21; a first mounting piece 23, wherein the first mounting piece 23 is disposed at the bottom end of the first connecting rod 22; A glue bottle 24, the glue bottle 24 is installed at the bottom of the first installation piece 23; A liquid outlet valve 25, the liquid outlet valve 25 is arranged on the liquid outlet pipe of the glue bottle 24; The glue brush 26 is connected to the liquid outlet pipe of the glue bottle 24 .

[0032] In detail: the glue sticking device 3 is moved to the bottom of the graphite block groove through the conversion device 1, and the liquid outlet valve 25 is controlled to open, so that the glue in the glue bottle 24 flows out along its liquid outlet pipe to the glue brush 26, and then the glue brush motor 21 drives the glue brush 26 to rotate through the first connecting rod 22, so as to evenly fill the bottom of the graphite block with glue and fix the sample powder added subsequently.

[0033] like Figure 1 and Figures 4 to 9 As shown, the glue sticking device 3 includes: The rubber motor 31 is mounted on the top of the support plate 124; A second connecting rod 32, one end of which is drivingly connected to the output end of the glue-laminating motor 31; A second mounting piece 33, wherein the second mounting piece 33 is disposed at the bottom of the second connecting rod 32; A fixing rod 34, wherein the fixing rod 34 is disposed at the bottom of the second mounting plate 33; A chassis 35, wherein the chassis 35 is disposed at the bottom of the fixing rod 34; A rubber supporting motor 36, wherein the rubber supporting motor 36 is installed on the top of the chassis 35; A second screw rod 37, one end of which is drivingly connected to the output end of the rubber supporting motor 36; A thread sleeve 38, wherein the thread sleeve 38 is sleeved on the outer side of the second threaded rod 37; A first fixing block 39, wherein the first fixing block 39 is disposed on the outer side of the wire sleeve 38; A connecting plate 310, one end of which is rotatably connected to the first fixing block 39; A second sliding bar 311, wherein the second sliding bar 311 is disposed in a groove at the bottom of the chassis 35; A first sliding block 312, wherein the first sliding block 312 is sleeved on the outer side of the second sliding rod 311 and is slidably connected to the inside of the groove; A second fixing block 313, which is disposed at the bottom of the first sliding block 312 and is rotatably connected to one end of the connecting plate 310; A support rod 314, wherein the support rod 314 is disposed at the bottom of the first sliding block 312; A third sliding bar 315, wherein the third sliding bar 315 is disposed in a groove at the bottom of the chassis 35; A second sliding block 316, wherein the second sliding block 316 is sleeved on the outer side of the third sliding bar 315 and is slidably connected to the inside of the groove; a first spring 317, wherein the first spring 317 is sleeved on the outer side of the third sliding rod 315, and one end of the first spring 317 abuts against one side of the second sliding block 316; A rotating rod 318, wherein the rotating rod 318 is disposed at the bottom of the second sliding block 316; A sleeve 319, wherein the sleeve 319 is sleeved on the rotating rod 318; A first limiting piece 320, wherein the first limiting piece 320 is disposed at the bottom of the second screw rod 37; The connecting ring 321 is disposed at the bottom of the first limiting piece 320 .

[0034] In detail, the double-sided tape used is annular, and its backing paper is in the inner circle and has a multi-circle structure, which is easy to tear off layer by layer, preventing the sample powder from sticking to the side wall of the upper groove and hindering the sample powder from falling; the annular double-sided tape is set on the four sleeves 319, and the support rod 314 is located outside the double-sided tape; then the support motor 36 drives the second screw rod 37 to rotate, and the second screw rod 37 drives the wire sleeve 38 to slide downward on the second screw rod 37, thereby driving the support rod 314 on the first sliders 312 at both ends to shrink inward, clamping the double-sided tape, and the contraction of the double-sided tape will cause the four sleeves 319 to move inward, and the diameter of the annular double-sided tape is reduced until the diameter is smaller than the diameter of the graphite block groove, so that the double-sided tape is moved into the groove of the graphite block under the drive of the lifting mechanism 11, and then the support motor 36 is reversed, and the support rods 314 at both ends are constantly moved away, and the double-sided tape is constantly loosened. Under the push of the first spring 317, the sleeve The tube 319 expands the double-sided tape until it contacts the side wall of the graphite block groove, and then the lifting mechanism 11 brings the glue sticking device 3 out of the graphite block groove. After the support rods 314 at both ends are driven by the glue support motor 36 to shrink, the lifting mechanism 11 moves the glue sticking device 3 into the graphite block groove again, and the rounded corners at the bottom of the sleeve 319 are convenient for squeezing into the graphite block groove. The glue sticking motor 31 rotates, which then drives the sleeve 319 to rotate inside the groove and continuously squeezes the double-sided tape to make it fit tightly with the side wall of the groove; a thin wire is tied to the connecting ring 321, and the other end of the thin wire is connected to the backing paper of the double-sided tape. After the lifting mechanism 11 lifts the glue sticking device 3 a certain distance, the backing paper will be torn off circle by circle under the action of tension as the height of the glue sticking device 3 continues to rise. In this process, the sample feeding device 6 will cooperate with the material discharge to prevent the sample powder from sticking to the high side wall, thereby affecting the material discharge.

[0035] like Figure 10 to Figure 11 As shown, the flattening device 4 comprises: A flattening motor 41, wherein the flattening motor 41 is installed on the top of the support plate 124; A third connecting rod 42, one end of which is drivingly connected to the output end of the flattening motor 41; A third mounting piece 43, wherein the third mounting piece 43 is disposed at the bottom end of the third connecting rod 42; A fourth sliding bar 44, wherein the fourth sliding bar 44 is disposed at the bottom of the third mounting plate 43; A second limiting piece 45, wherein the second limiting piece 45 is disposed at the bottom end of the fourth sliding rod 44; a second spring 46, wherein the second spring 46 is sleeved on the outer side of the fourth sliding rod 44; a third slider 47, wherein the third slider 47 is sleeved on the outer side of the fourth slider 44 and abuts against one end of the second spring 46; A flattening roller 48 is disposed at the bottom of the third sliding block 47 .

[0036] In detail: when flattening the sample powder, the lifting mechanism 11 controls the flattening device 4 to move downward gradually until the second spring 46 is slightly deformed, so as to ensure a lighter pressure and a uniform and constant pressure. The rotation of the flattening motor 41 will drive the flattening roller 48 to rotate, and flatten the sample powder in the groove of the graphite block.

[0037] like Figure 10 to Figure 11 As shown, the dust blowing device 5 comprises: An extension plate 51, wherein the extension plate 51 is disposed on one side of the third sliding block 47; An air pump 52, the air pump 52 is installed on the top of the extension plate 51; The blowing pipe 53 has one end disposed at the air outlet of the air pump 52 .

[0038] In detail, after the flattening operation is completed, the air pump 52 is started, and the blowing pipe 53 is driven by the flattening motor 41 to rotate, and the various parts above the groove of the graphite block are blown evenly to blow away the excess sample powder above the groove.

[0039] like Figure 2 and Fig.14 As shown, the ejection device 7 comprises: An adapter plate 71, wherein the adapter plate 71 is disposed on the top of the carrier plate 10; A fixing plate 72, wherein the fixing plate 72 is disposed at the bottom of the object carrier plate 10; A screw rod 73 with a handle, wherein the screw rod 73 with a handle is inserted into the interior of the adapter plate 71; A bearing 74, wherein the bearing 74 is disposed on the top of the handle screw 73; The push-out plate 75 is disposed on the top of the bearing 74 .

[0040] In detail, by rotating the handle of the screw rod 73, the screw rod 73 drives the bearing 74 to move upward. Due to the action of the bearing 74, the screw rod 73 and the ejection plate 75 rotate relative to each other, while the ejection plate 75 and the graphite block remain relatively still, so that the graphite block can be stably ejected from the adapter plate 71.

[0041] Embodiment 2 like Figure 12 to Figure 13 As shown, the components identical or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The second embodiment differs from the first embodiment in that: The sample delivery device 6 comprises: A translation mechanism 61, wherein the translation mechanism 61 is disposed on one side of the side plate 9; A stirring barrel 62, wherein the stirring barrel 62 is disposed on the translation mechanism 61; A stirring motor 63, wherein the stirring motor 63 is installed on the top of the stirring barrel 62; A stirring rod 64, one end of which is drivingly connected to the output end of the stirring motor 63; A screen 65, wherein the screen 65 is disposed inside the mixing barrel 62; A sample delivery tube 66, wherein the sample delivery tube 66 and the stirring barrel 62 are disposed outside the stirring barrel 62 and have two communicating openings with the stirring barrel 62; A sample discharging motor 67, wherein the sample discharging motor 67 is installed on the top of the sample delivery tube 66; A tubular body 68, the top of which is drivingly connected to the output end of the sample output motor 67, and the tubular body 68 is provided with a through groove corresponding to the communication port of the sample delivery tube 66; A lower sample tube 69, the interior of which is connected to one end of the sample delivery tube 66; A sample discharging motor 610, wherein the sample discharging motor 610 is installed on the top of the sample discharging tube 69; A second connecting member 611, one end of which is drivingly connected to the output end of the sample unloading motor 610; A flat discharge nozzle 612 is sleeved on the lower sample tube 69 and fixedly connected to the bottom of the second connecting member 611 .

[0042] Wherein, the translation mechanism 61 comprises: A second connecting member 611, wherein the second connecting member 611 is disposed on one side of the side plate 9; A flat discharge nozzle 612, wherein the flat discharge nozzle 612 is disposed at one end of the second connecting member 611; A translation motor 613, wherein the translation motor 613 is installed at one side of the flat discharge nozzle 612; A screw rod 614, one end of which is drivingly connected to the output end of the translation motor 613; A second sliding plate 615, wherein the second sliding plate 615 is sleeved on the second connecting member 611 and the screw rod 614; The connecting block 616 is disposed on one side of the second sliding plate 615 , and one side of the connecting block 616 is also fixedly connected to the outer side of the mixing barrel 62 .

[0043] In detail: after the sample powder is added into the stirring barrel 62, the stirring motor 63 drives the stirring rod 64 to stir the sample powder, so that the finer sample powder passes through the screen 65 and falls into the lower part of the stirring barrel 62; when discharging, the sample discharging motor 67 controls the rotation position of the tubular body 68 to align the through groove on the tubular body 68 with the connecting port between the stirring barrel 62 and the sample feeding tube 66, so as to control the finer sample powder and the coarser sample powder; the sample powder is mainly discharged in the center of the groove, and can be evenly dispersed by centrifugal force. The specific operation is that the sample discharging motor 610 drives the flat discharging nozzle 612 to rotate through the second connecting piece 611. The flat discharge nozzle 612 is round on the upper part and flat on the lower part. By rotating the flat discharge nozzle 612 and controlling its rotation speed, the sample powder can be evenly dropped into the groove of the graphite block. When the sample powder is discharged, several layers of fine sample powder are spread on the bottom, and in the middle part, coarse and fine sample powders are alternately laid. Finally, several layers of finer sample powder are laid on the top layer, so that the sample powder is evenly dispersed in the groove of the graphite block and can be easily flattened. In addition to moving the flat discharge nozzle 612 to directly above the groove of the graphite block, the translation mechanism 61 can also drive the stirring barrel 62 to shake in a small range during the discharge process, so as to help the sample powder fall from the stirring barrel 62 into the sample delivery tube 66.

[0044] Embodiment 3 like Fig.15 As shown, this embodiment provides a sample preparation method for glow discharge mass spectrometry detection of non-conductor powder, comprising the following steps: Step 1: Brushing glue on the bottom: The conversion device 1 moves the glue brushing device 2 to the bottom of the graphite block groove, and performs a glue brushing operation on the bottom of the groove; Step 2: Gluing the side wall: the conversion device 1 moves the glue brushing device 2 into the groove of the graphite block, and the glue sticking device 3 sticks the double-sided tape on the side wall of the groove; Step 3: Sample feeding: the sample feeding device 6 moves to the top of the groove of the graphite block to fill the groove; Step 4: Flattening and blowing dust: The conversion device 1 moves the flattening device 4 to the top of the groove of the graphite block, flattens the sample powder in the groove, and then blows away the excess sample powder; Step 5: Pushing out the ink block: Pushing out the graphite block from the adapter plate 71, and the preparation of the sample for glow discharge mass spectrometry detection is completed.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A glow discharge mass spectrometry detection system for non-conductor powders, characterized in that: include: A conversion device, which is disposed on the top of the side panel and is used to change the use device; A glue brushing device, which is arranged at the bottom of the conversion device and is used to brush glue to the bottom of the graphite block groove; A gluing device, which is arranged at the bottom of the conversion device and is used to stick double-sided tape to the side wall of the graphite block groove; A flattening device, which is disposed at the bottom of the conversion device and is used to compact the sample powder filled in the groove of the graphite block; a dust blowing device, which is arranged on one side of the flattening device and is used to blow away excess sample powder; a sample feeding device, which is arranged on one side of the side plate and is used to feed the sample powder into the groove of the graphite block; A pushing device, which is disposed at the bottom of the carrier plate and is used to push out the graphite block; During the sample preparation process, the conversion device first switches the glue brushing device and the glue sticking device to the top of the graphite block, and respectively brushes glue on the bottom of the graphite block groove and sticks double-sided tape on the side wall. Then the sample feeding device fills the sample powder into the graphite block groove, and finally it is flattened by the flattening device. After the dust blowing device blows away the excess sample powder, the sample preparation is completed, and the graphite block can be pushed out by the pushing device.

2. A glow discharge mass spectrometry detection system for non-conductor powder according to claim 1, characterized in that: The conversion device comprises: A lifting mechanism, wherein the lifting mechanism is disposed on the top of the side panel; A rotating mechanism is arranged on one side of the lifting mechanism. The lifting mechanism comprises: a first sliding bar, the first sliding bar being arranged on the top of the side plate; A top plate, the top plate being arranged on the top of the first sliding rod; A first sliding plate, wherein the first sliding plate is sleeved on an outer side of the first sliding rod; A lifting motor, the lifting motor is installed on the top of the top plate; A first screw rod, one end of which is drivingly connected to the output shaft of the lifting motor, and the first screw rod is also inserted into the interior of the first sliding plate. The rotating mechanism comprises: A U-shaped plate, the U-shaped plate being arranged on one side of the first sliding plate; A rotating motor, the rotating motor is mounted on the top of the U-shaped plate; A connecting shaft, one end of which is drivingly connected to the output shaft of the rotating motor; A support plate is arranged at the bottom end of the connecting shaft.

3. The glow discharge mass spectrometry detection system for non-conductor powder according to claim 2, characterized in that: The glue brushing device comprises: A glue brushing motor, the glue brushing motor is installed on the top of the support plate; A first connecting rod, one end of which is drivingly connected to the output end of the glue-brushing motor; A first mounting plate, wherein the first mounting plate is disposed at a bottom end of the first connecting rod; A glue bottle, the glue bottle is installed at the bottom of the first installation piece; A liquid outlet valve, the liquid outlet valve is arranged on the liquid outlet pipe of the glue bottle; A glue brush is connected to the liquid outlet pipe of the glue bottle.

4. The glow discharge mass spectrometry detection system for non-conductor powder according to claim 1, characterized in that: The glue sticking device comprises: A rubber-coated motor, the rubber-coated motor is mounted on the top of the support plate; A second connecting rod, one end of which is drivingly connected to the output end of the rubber-attached motor; A second mounting plate, the second mounting plate being arranged at the bottom of the second connecting rod; A fixing rod, the fixing rod being arranged at the bottom of the second mounting piece; A chassis, the chassis being arranged at the bottom of the fixing rod; A rubber support motor, which is installed on the top of the chassis; A second screw rod, one end of which is drivingly connected to the output end of the rubber supporting motor; A thread sleeve, the thread sleeve being sleeved on the outer side of the second threaded rod; A first fixing block, wherein the first fixing block is arranged on the outer side of the silk sleeve; A connecting plate, one end of which is rotatably connected to the first fixing block; a second sliding bar, the second sliding bar being arranged in a groove at the bottom of the chassis; A first sliding block, wherein the first sliding block is sleeved on the outer side of the second sliding rod and is slidably connected to the inside of the groove; A second fixing block, which is disposed at the bottom of the first sliding block and is rotatably connected to one end of the connecting plate; A support rod, the support rod is arranged at the bottom of the first sliding block; a third sliding rod, the third sliding rod being arranged in a groove at the bottom of the chassis; A second sliding block, the second sliding block is sleeved on the outer side of the third sliding rod and is slidably connected to the inside of the groove; a first spring, wherein the first spring is sleeved on the outer side of the third sliding rod, and one end of the first spring abuts against one side of the second sliding block; A rotating rod, the rotating rod is arranged at the bottom of the second sliding block; A sleeve, the sleeve being sleeved on the rotating rod; A first limiting piece, wherein the first limiting piece is arranged at the bottom of the second screw rod; A connecting ring is arranged at the bottom of the first limiting piece.

5. The glow discharge mass spectrometry detection system for non-conductor powder according to claim 1, characterized in that: The flattening device comprises: A flattening motor, the flattening motor is installed on the top of the support plate; A third connecting rod, one end of which is drivingly connected to the output end of the flattening motor; A third mounting plate, the third mounting plate being arranged at the bottom end of the third connecting rod; a fourth sliding bar, the fourth sliding bar being arranged at the bottom of the third mounting piece; a second limiting piece, wherein the second limiting piece is arranged at the bottom end of the fourth sliding rod; a second spring, wherein the second spring is sleeved on the outer side of the fourth sliding rod; a third sliding block, the third sliding block being sleeved on the outer side of the fourth sliding bar and abutting against one end of the second spring; A flattening roller is arranged at the bottom of the third sliding block.

6. A glow discharge mass spectrometry detection system for non-conductor powder according to claim 5, characterized in that: The dust blowing device includes: An extension plate, the extension plate being arranged on one side of the third sliding block; an air pump, the air pump being mounted on the top of the extension plate; A blowing pipe, one end of which is arranged at the air outlet of the air pump.

7. The glow discharge mass spectrometry detection system for non-conductor powder according to claim 1, characterized in that: The sample delivery device comprises: A translation mechanism, wherein the translation mechanism is arranged on one side of the side plate; A stirring barrel, wherein the stirring barrel is arranged on the translation mechanism; A stirring motor, the stirring motor is installed on the top of the stirring barrel; A stirring rod, one end of which is drivingly connected to the output end of the stirring motor; A screen, wherein the screen is arranged inside the mixing barrel; A sample delivery tube, the sample delivery tube and the stirring barrel are arranged outside the stirring barrel and have two communication ports with the stirring barrel; A sample discharging motor, the sample discharging motor is installed on the top of the sample delivery tube; A tubular body, the top of which is drivingly connected to the output end of the sample output motor, and the tubular body is provided with a through groove corresponding to the communication port of the sample delivery tube; A sample lowering tube, the interior of which is connected to one end of the sample delivery tube; A sample discharging motor, the sample discharging motor is installed on the top of the sample discharging tube; A second connecting member, one end of which is drivingly connected to an output end of the sample lowering motor; A flat discharge nozzle is sleeved on the lower sample tube and fixedly connected to the bottom of the second connecting member.

8. The glow discharge mass spectrometry detection system for non-conductor powder according to claim 7, characterized in that: The translation mechanism comprises: a second connecting member, the second connecting member being disposed on one side of the side plate; A flat discharge nozzle, the flat discharge nozzle is arranged at one end of the second connecting member; A translation motor, the translation motor is installed on one side of the flat discharge nozzle; A screw rod, one end of which is drivingly connected to the output end of the translation motor; A second sliding plate, the second sliding plate being sleeved on the second connecting member and the screw rod; A connecting block is arranged on one side of the second sliding plate, and one side of the connecting block is also fixedly connected to the outer side of the mixing barrel.

9. The glow discharge mass spectrometry detection system for non-conductor powder according to claim 1, characterized in that: The ejection device comprises: An adapter plate, the adapter plate being arranged on the top of the carrier plate; A fixing plate, the fixing plate being arranged at the bottom of the loading plate; A screw with a handle, wherein the screw with a handle is inserted into the interior of the adapter plate; A bearing, wherein the bearing is arranged on the top of the screw rod with a handle; A push-out plate is arranged on the top of the bearing.

10. A glow discharge mass spectrometry detection method for non-conductor powder according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Brush glue on the bottom: The conversion device moves the glue brushing device to the bottom of the graphite block groove and performs glue brushing operation on the bottom of the groove; Step 2: Gluing the side wall: The conversion device moves the glue brushing device into the groove of the graphite block, and the glue sticking device sticks the double-sided tape on the side wall of the groove; Step 3: Sample feeding: The sample feeding device moves to the top of the graphite block groove to fill the groove; Step 4: Flattening and blowing dust: The conversion device moves the flattening device to the top of the groove of the graphite block, flattens the sample powder in the groove, and then blows away the excess sample powder; Step 5: Pushing out the ink block: Pushing out the graphite block from the adapter plate through the pushing device, and the preparation of the sample for glow discharge mass spectrometry detection is completed.

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