An automatic sampling, weighing and sample packing device for elemental analysis

Abstract

The application discloses an automatic sampling, weighing and sample packaging device for element analysis and relates to the technical field of element analysis. The device comprises a support, a sampling structure, a sample table, a tin capsule table, a weighing structure, a sample packaging structure and a controller. The sampling structure, the weighing structure and the sample packaging structure are electrically connected with the controller. The sample table, the tin capsule table, the weighing structure and the sample packaging structure are sequentially arranged on the support. The sample table is used for placing samples. The tin capsule table is used for placing tin capsules. The sampling structure is located above the sample table, the tin capsule table, the weighing structure and the sample packaging structure. The sampling structure is slidably connected with the guide rail of the support. The device can automatically complete sampling, weighing and sample packaging, greatly saves labor cost, improves work efficiency, shortens analysis time and improves sample yield.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of element analysis, in particular to an element analysis automatic sampling, weighing and sample packaging device. BACKGROUND

[0002] In the fields of environmental science, ecology, agriculture, chemistry, geology and the like, element analysis of samples is required, and an element analyzer is used to analyze the elements of the samples. Before sample analysis, the samples need to go through three links of sampling, weighing and sample packaging. At present, the work before element analysis is still completed manually. For example, a solid element analyzer tin capsule sample packaging structure is disclosed in Chinese Patent No. CN209485837U, which is packaged by manual means. When the number of samples to be analyzed is several hundred or even several thousand, the manual sampling, weighing and sample packaging method has no advantage, and this method is low in efficiency, easy to make mistakes, time-consuming and high in cost. SUMMARY

[0003] The purpose of the present application is to provide an element analysis automatic sampling, weighing and sample packaging device to solve the problems existing in the prior art and realize full automation of the three links of sampling, weighing and sample packaging, thereby greatly saving labor costs, improving work efficiency, shortening analysis time and improving sample yield.

[0004] To achieve the above purpose, the present application provides the following solutions.

[0005] The present application provides an element analysis automatic sampling, weighing and sample packaging device, which comprises a support, a sampling structure, a sample table, a tin capsule table, a weighing structure, a sample packaging structure and a controller. The sampling structure, the weighing structure and the sample packaging structure are electrically connected to the controller. The sample table, the tin capsule table, the weighing structure and the sample packaging structure are sequentially arranged on the support. The sample table is used to place samples. The tin capsule table is used to place tin capsules. The sampling structure is located above the sample table, the tin capsule table, the weighing structure and the sample packaging structure. The sampling structure is slidably connected to the guide rail of the support.

[0006] Preferably, the sampling structure comprises a first air pump, a second air pump, a sample tube and a tin capsule tube. The first air pump is in communication with one end of the sample tube. The other end of the sample tube is used to suck samples. The second air pump is in communication with one end of the tin capsule tube. The other end of the tin capsule tube is provided with a rubber ball.

[0007] Preferably, the weighing structure comprises an electronic scale.

[0008] Preferably, the sample packaging structure comprises a sample packaging table, a first extrusion assembly, a second extrusion assembly, a turnover assembly and a guide assembly, the sample packaging table is provided with a circular groove, a rectangular groove and a V-shaped groove, the circular groove is used for placing a tin capsule containing a sample, the rectangular groove is communicated with the circular groove, the upper end of the rectangular groove extends to the surface of the sample packaging table, the lower end of the rectangular groove extends above the turnover assembly, the two first extrusion assemblies are located on the two sides of the circular groove, the V-shaped groove is located on one side of the rectangular groove, the second extrusion assembly is arranged opposite to the V-shaped groove, the turnover assembly is located below the V-shaped groove, and the guide assembly is located below the turnover assembly.

[0009] Preferably, each first extrusion assembly comprises a first metal extrusion block and a first coil, the first coil is sleeved on the outer side of the first metal extrusion block, and the extrusion surface of the first metal extrusion block is a plane.

[0010] Preferably, the second extrusion assembly comprises a second metal extrusion block and a second coil, the second coil is sleeved on the outer side of the second metal extrusion block, and the extrusion surface of the second metal extrusion block is matched with the shape of the V-shaped groove.

[0011] Preferably, the turnover assembly is provided with a groove, and the turnover assembly is driven to turn over by a third coil.

[0012] Preferably, a sample storage structure is further included, and the sample storage structure is used for storing the packaged sample.

[0013] The present application has the following technical effects relative to the prior art:

[0014] The device can realize automatic completion of sampling, weighing and sample packaging, greatly saving labor cost, improving work efficiency, shortening analysis time and improving sample yield. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0016] Figure 1 The present application is an automatic sampling, weighing and sample packaging device for element analysis.

[0017] Figure 2 The present application is an automatic sampling, weighing and sample packaging device for element analysis.

[0018] Figure 3isometric view of the sample packaging structure of the present application;

[0019] Figure 4 side view of the sample packaging structure of the present application Figure 1 ;

[0020] Figure 5 side view of the sample packaging structure of the present application Figure 2 ;

[0021] Figure 6 top view of the sample packaging structure of the present application;

[0022] Figure 7 is the A-A sectional view of Figure 6 ;

[0023] Figure 8 schematic diagram of the internal structure of the sample packaging structure of the present application;

[0024] Figure 9 isometric view of the first extrusion assembly of the present application;

[0025] Figure 10 isometric view of the second extrusion assembly of the present application;

[0026] Figure 11 isometric view of the turnover assembly of the present application;

[0027] wherein: 100 - element analysis automatic sampling, weighing, sample packaging device, 1 - support, 2 - sampling structure, 3 - sample table, 4 - tin capsule table, 5 - weighing structure, 6 - sample packaging structure, 7 - sample tube, 8 - tin capsule tube, 9 - rubber ball, 10 - sample packaging table, 11 - first metal extrusion block, 12 - first coil, 13 - second metal extrusion block, 14 - second coil, 15 - turnover assembly, 16 - groove, 17 - sample storage structure, 18 - guide assembly, 19 - tin capsule containing sample, 20 - rectangular groove, 21 - V-shaped groove, 22 - circular groove, 23 - third coil. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0029] The purpose of the present application is to provide an element analysis automatic sampling, weighing, sample packaging device to solve the problems existing in the prior art, realize the automatic completion of sampling, weighing and sample packaging, greatly save the labor cost, improve the work efficiency, shorten the analysis time and improve the sample yield.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] like Figures 1 to 11 As shown: This embodiment provides an automatic sampling, weighing and sample packaging device for elemental analysis, including a bracket 1, a sampling structure 2, a sample table 3, a tin capsule table 4, a weighing structure 5, a sample packaging structure 6 and a controller. The sampling structure 2, the weighing structure 5 and the sample packaging structure 6 are all electrically connected to the controller. The controller is located inside the sampling structure 2. The sample table 3, the tin capsule table 4, the weighing structure 5 and the sample packaging structure 6 are arranged on the bracket 1 in sequence. The sample table 3 is used to place samples, and the tin capsule table 4 is used to place tin capsules. The sampling structure 2 is located above the sample table 3, the tin capsule table 4, the weighing structure 5 and the sample packaging structure 6, and the sampling structure 2 is slidably connected to the guide rail of the bracket 1.

[0032] Specifically, in this embodiment, the sampling structure 2 includes a first air pump, a second air pump, a sample tube 7, and a tin capsule tube 8. The first air pump is connected to one end of the sample tube 7, the other end of which is used to draw a sample. The second air pump is connected to one end of the tin capsule tube 8, the other end of which is provided with a rubber ball 9. The motors of the first and second air pumps can inflate air when rotating forward and deflate air when rotating reversely. The sampling structure 2 of this embodiment also includes a lifting assembly that drives the sample tube 7 and the tin capsule tube 8 to rise and fall. The first and second air pumps and the lifting assembly are all electrically connected to a controller. When the sampling structure 2 is in operation, the sampling structure 2 slides along the guide rails, samples are taken through the sample tube 7, and the rubber ball 9 at the lower end of the tin capsule tube 8 is placed into the tin capsule on the tin capsule platform 4. The rubber ball 9 is then inflated by the second air pump. When the outer diameter of the rubber ball 9 is slightly larger than the inner diameter of the tin capsule, the tin capsule can be picked up.

[0033] In this embodiment, the weighing structure 5 includes an electronic scale, which is electrically connected with the sampling structure 2 and the controller respectively. The electronic scale is a prior art, for example, AUW220D electronic scale, which has a data input / output port, and can be connected with other devices. According to the communication protocol of the instrument, the infrared wireless transceiver module is connected to realize the data transmission between the sampling structure 2 and the electronic scale. When the sampling is completed, the sampling structure 2 comes to the top of the weighing structure 5, the tin capsule tube 8 places the tin capsule on the electronic scale, and after the placement is completed, the infrared sensor of the sampling structure 2 (the infrared sensor of the sampling structure 2 is located on the lower surface of the sampling structure 2) sends a zeroing instruction to the weighing structure 5, and the infrared sensor of the weighing structure 5 (the infrared sensor of the weighing structure 5 is located on the upper surface of the weighing structure 5) receives the zeroing and performs the weighing zeroing (i.e. tin capsule peeling), and then the sample tube 7 puts the sample into the tin capsule, the electronic scale transmits the weight data to the controller, the controller adjusts the speed of the motor of the first air pump to control the amount of the sample, and the smaller the speed of the motor, the less the amount of the sample. When the weight of the sample reaches the set value, the sample weighing work is completed. After the sample weighing is completed, the infrared sensor of the weighing structure 5 sends a completion instruction, and after the sampling structure 2 receives the instruction, the tin capsule tube 8 picks up the weighed tin capsule 19 containing the sample to the sample packaging structure 6. After the sampling is completed, the sampling structure 2 picks up the tin capsule 19 containing the sample to the sample packaging structure 6, the controller sends a sample packaging instruction to the sample packaging structure 6 and leaves by itself, and the infrared sensor of the sample packaging structure 6 receives the sample packaging instruction and starts to package the sample.

[0034] In the embodiment, the sample packaging structure 6 comprises a sample packaging table 10, a first extrusion assembly, a second extrusion assembly, a turnover assembly 15 and a guide assembly 18. The sample packaging table 10 is provided with an infrared sensor. The sample packaging table 10 is provided with a circular groove 22, a rectangular groove 20 and a V-shaped groove 21. The circular groove 22 is used for placing a tin capsule 19 containing a sample. The upper surface of the circular groove 22 is lower than the lower surface of the first extrusion assembly. The center line of the rectangular groove 20 coincides with the center line of the circular groove 22. The rectangular groove 20 is in communication with the circular groove 22. The upper end of the rectangular groove 20 extends to the surface of the sample packaging table 10. The lower end of the rectangular groove 20 extends above the turnover assembly 15. The two first extrusion assemblies are located on both sides of the circular groove 22 and the rectangular groove 20. The V-shaped groove 21 is located on one side of the rectangular groove 20. The V-shaped groove 21 is in communication with the rectangular groove 20. The second extrusion assembly is arranged opposite to the V-shaped groove 21. The turnover assembly 15 is located below the V-shaped groove 21. The turnover assembly 15 is in a cylindrical shape. The turnover assembly 15 is horizontally arranged. One side of the turnover assembly 15 is provided with a third coil 23. The third coil 23 is parallel to the axis of the turnover assembly 15. The turnover assembly 15 is provided with a groove 16. The lower end of the V-shaped groove 21 corresponds to the groove 16. The turnover assembly 15 is driven to turn by the third coil 23. The guide assembly 18 is located below the turnover assembly 15. The guide assembly 18 comprises a guide groove. The upper end of the guide groove corresponds to the position of the groove 16. When the third coil 23 drives the turnover assembly 15 to turn around the horizontal axis, the tin capsule 19 containing a sample in the groove 16 can fall into the guide groove, slide along the guide groove and slide out of the lower end of the guide groove.

[0035] In the embodiment, each first extrusion assembly comprises a first metal extrusion block 11 and a first coil 12. The first coil 12 is sleeved on the outside of the first metal extrusion block 11. The extrusion surface of the first metal extrusion block 11 is a plane.

[0036] In the embodiment, the second extrusion assembly comprises a second metal extrusion block 13 and a second coil 14. The second coil 14 is sleeved on the outside of the second metal extrusion block 13. The extrusion surface of the second metal extrusion block 13 matches the shape of the V-shaped groove 21, that is, the extrusion end of the second metal extrusion block 13 is in the shape of an acute-angled triangle.

[0037] In the embodiment, the sample packaging process of the sample packaging structure 6 comprises the following steps.

[0038] Firstly, the tin capsule 19 containing a sample is placed in the circular groove 22. The controller sends a command. The two first coils 12 are charged. The two first metal extrusion blocks 11 move towards each other. The tin capsule 19 containing a sample is extruded. The tin capsule 19 containing a sample is in the shape of a cuboid. After extrusion, the reverse current is input into the first coil 12. The two first metal extrusion blocks 11 move reversely to release the tin capsule.

[0039] Second step: after extrusion, tin capsule 19 containing sample enters rectangular groove 20, at this time, controller issues instructions, second coil 14 charges to make second metal extrusion block 13 move to V-shaped groove 21, extrusion surface of second metal extrusion block 13 cooperates with V-shaped groove 21 to realize folding, after folding, reverse current is input to second coil 14, second metal extrusion block 13 reversely exits;

[0040] Third step: after folding, tin capsule 19 containing sample falls into recess 16 of turnover assembly 15 in the form of a folded strip, at this time, controller issues instructions, third coil 23 drives turnover assembly 15 to rotate, tin capsule 19 containing sample in the form of a folded strip falls into guide groove of guide assembly 18, third coil 23 continues to drive turnover assembly 15 to rotate to the initial position.

[0041] In the embodiment, sample storage structure 17 is further included, which includes a sample storage table for storing packaged samples. The sample storage table is a cube with a size of 10cm*15cm*5cm, and 5*8 (a total of 40) hollow cylindrical grooves are arranged on the sample storage table. The cylindrical grooves are used to store packaged samples, and the diameter of the cylindrical grooves is 1cm and the depth is 3cm. Adjacent cylindrical grooves are provided with a spacing to facilitate the equal-distance movement and sample storage of sampling structure 2. The size and number of the cylindrical grooves can be set according to requirements. After sample packaging is completed, the sample slides down from the guide groove, and the sampling structure 2 picks up the sample into the cylindrical groove of the sample storage table at the end of the guide groove.

[0042] The embodiment aims to improve the device, and the control process of the controller is the prior art.

[0043] Compared with manually scooping samples with a spoon, weighing, and then clamping the samples for packaging with tweezers, the embodiment completes sampling, weighing, and packaging in an automatic manner, replaces manual work to complete a large amount of repetitive work, has high work efficiency, high packaging yield, improves sample quality, liberates labor, saves labor cost, and can realize automatic work.

[0044] The principles and implementation modes of the present application are described in specific examples in the specification, and the above examples are only used to help understand the method and core idea of the present application; meanwhile, for those skilled in the art, the specific implementation modes and application ranges can be changed according to the idea of the present application. In conclusion, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A method for automatic sampling, weighing and packaging of samples for elemental analysis, characterized by: The device comprises a bracket, a sampling structure, a sample stage, a tin capsule stage, a weighing structure, a sample packaging structure and a controller, wherein the sampling structure, the weighing structure and the sample packaging structure are all electrically connected to the controller, the sample stage, the tin capsule stage, the weighing structure and the sample packaging structure are sequentially arranged on the bracket, the sample stage is used to place samples, the tin capsule stage is used to place tin capsules, the sampling structure is located above the sample stage, the tin capsule stage, the weighing structure and the sample packaging structure, and the sampling structure is slidably connected to the guide rail of the bracket; The sampling structure includes a first air pump, a second air pump, a sample tube, and a tin capsule tube. The first air pump is connected to one end of the sample tube, the other end of which is used to draw samples. The second air pump is connected to one end of the tin capsule tube, and the other end of the tin capsule tube is provided with a rubber ball. When the sampling structure is in operation, the sampling structure slides along the guide rail to sample through the sample tube. The rubber ball at the lower end of the tin capsule tube is placed into the tin capsule on the tin capsule table. The rubber ball is inflated by the second air pump. When the outer diameter of the rubber ball is larger than the inner diameter of the tin capsule, the tin capsule can be picked up. The weighing structure includes an electronic scale; When sampling is completed, the sampling structure comes to the top of the weighing structure, and the tin capsule tube places the tin capsule on the electronic scale. After placement is completed, the infrared sensor of the sampling structure sends a weighing zero instruction to the weighing structure. After receiving the zero instruction, the infrared sensor of the weighing structure performs weighing zero. Then, the sample tube puts the sample into the tin capsule one by one, and the electronic scale transmits the weight data to the controller. The controller adjusts the speed of the motor of the first air pump to achieve control of the sample amount. When the sample weight reaches the set value, the sample weighing is completed; after the sample weighing is completed, the infrared sensor of the weighing structure sends a completion instruction. After the sampling structure receives the instruction, the tin capsule tube picks up the weighed tin capsule containing the sample to the sample packaging structure; the controller sends a sample packaging instruction to the sample packaging structure, and the infrared sensor of the sample packaging structure starts to package the sample after receiving the sample packaging instruction.

2. The automatic sampling, weighing and packaging method for elemental analysis according to claim 1, characterized in that: The sample packaging structure includes a sample packaging platform, a first extrusion assembly, a second extrusion assembly, a flip assembly and a guide assembly. The sample packaging platform is provided with a circular groove, a rectangular groove and a V-shaped groove. The circular groove is used to place a tin bag containing a sample. The rectangular groove is connected to the circular groove. The upper end of the rectangular groove extends to the surface of the sample packaging platform, and the lower end of the rectangular groove extends to the top of the flip assembly. The two first extrusion assemblies are located on both sides of the circular groove, the V-shaped groove is located on one side of the rectangular groove, the second extrusion assembly is arranged opposite to the V-shaped groove, the flip assembly is located below the V-shaped groove, and the guide assembly is located below the flip assembly.

3. The automatic sampling, weighing and packaging method for elemental analysis according to claim 2, characterized in that: Each of the first extrusion assemblies includes a first metal extrusion block and a first coil. The first coil is sleeved on the outside of the first metal extrusion block. The extrusion surface of the first metal extrusion block is a plane.

4. The automatic sampling, weighing and packaging method for elemental analysis according to claim 2, characterized in that: The second extrusion assembly includes a second metal extrusion block and a second coil. The second coil is sleeved on the outside of the second metal extrusion block. The extrusion surface of the second metal extrusion block matches the shape of the V-shaped groove.

5. The automatic sampling, weighing and packaging method for elemental analysis according to claim 2, characterized in that: The flipping assembly is provided with a groove, and the flipping assembly is driven by a third coil to flip.

6. The automatic sampling, weighing and packaging method for elemental analysis according to claim 1, characterized in that: It also includes a sample storage structure, which is used to store the packaged samples.

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