Powder tabletting device for micro-area in-situ analysis sample

Abstract

The invention discloses a sample powder tabletting device for micro-area in-situ analysis. The sample powder tabletting device comprises a base, a fixing ring, a splicing plate, a pressing column, an inserting rod, a plastic ring and a polyethylene powder filling body, the number of the splicing plates is multiple, the multiple splicing plates can be connected to the upper surface of the base in a sliding mode, the fixing ring is connected with the outer side wall of the base in an up-down sliding mode, and each splicing plate is provided with a first limiting face; during tablet pressing, the multiple splicing plates are spliced on the base in a sliding mode, the multiple first limiting faces are combined to form a groove, the peripheral sides of the multiple spliced splicing plates are sleeved with the fixing ring, the inserting rod penetrates through the fixing ring to be inserted into the base, and the pressing column is inserted into the groove. The plastic ring is arranged in the groove and used for containing rock powder, and the polyethylene powder filling body is used for being filled in the groove to cover the rock powder in the plastic ring and the outer side of the plastic ring. According to the device, a binder does not need to be added during tabletting, rock powder can be compacted more compactly, and the test sensitivity is improved; the tabletting device is detachable, sampling is convenient, and efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of molding equipment, in particular to a powder tabletting device for micro-area in-situ analysis of sample powders. Background Art

[0002] During geological exploration, it is necessary to collect samples of rocks and analyze the chemical composition of the entire rock. Before using micro-area in-situ analysis technology to analyze the chemical composition of rocks, it is also necessary to use grinding equipment to grind the collected rocks into powder. In order to facilitate the analysis of rock composition, the rock powder needs to be pressed into a thin sheet sample with a certain hardness and density specification using a tableting mold on a tablet press, and then the sample is placed on an analytical instrument for analysis and testing. Conventional tableting devices, after pressing the sample, require a second reverse pressing to remove the sample tablet due to structural problems with the pressing mold, which is inefficient and time-consuming and labor-intensive. At the same time, because rock sample powder is not easy to bond together, conventional tableting equipment has too little pressure, and often requires the addition of a binder to effectively press it into tablets. This introduces additional chemical component interference, loosely pressed powder samples, uneven surfaces of pressed powder samples, and mineral and particle effects. Summary of the Invention

[0003] To this end, the present invention provides a powder tabletting device for micro-area in-situ analysis of sample powders to solve the above-mentioned problems in the prior art.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] According to a first aspect of the present invention, a powder tabletting device for in-situ analysis of a sample in a micro-area comprises a base, a fixing ring, a splicing plate, a pressing column, an inserting rod, a plastic ring and a polyethylene powder filling body;

[0006] There are multiple splicing plates, each of which is slidably connected to the upper surface of the base, the fixing ring is slidably connected to the outer side wall of the base, and each of the splicing plates has a first limiting surface;

[0007] During sheet pressing, the plurality of splicing plates are slidably spliced on the base and the plurality of first limiting surfaces are combined to form a groove, the fixing ring is sleeved on the outer peripheral side of the plurality of spliced splicing plates, the insertion rod passes through the fixing ring and is inserted into the base, and the pressure column is inserted into the groove;

[0008] The plastic ring is arranged in the groove, and the plastic ring is used to place rock powder. The polyethylene powder filler is used to fill the groove to cover the rock powder in the plastic ring and the outside of the plastic ring.

[0009] Furthermore, a vertical slide groove is provided on the side wall of the base, the fixed ring includes a ring body and a vertical slider, the inner side wall of the ring body is provided with a vertical slider, the ring body is sleeved on the base, and the vertical slider can be slidably connected in the vertical slide groove.

[0010] Furthermore, the top wall of the base is provided with a plurality of transverse sliding grooves, and each splicing plate includes a plate body and a first transverse sliding block. The first transverse sliding block is provided on one side of the plate body. When pressing the plate, the first transverse sliding block can be slidably connected in the transverse sliding groove one by one, and the end face of the inner side of the plate body is the first limiting surface.

[0011] Furthermore, the splicing plate also includes a second transverse slider. The second transverse slider is provided on the other side of the plate body. When the sample after tableting is taken out, the second transverse slider can be slidably connected in the transverse slide groove.

[0012] Furthermore, the pressure column includes a column body and a positioning ring, and a positioning ring is provided at one end of the column body; when working, the column body is inserted into the groove.

[0013] Furthermore, a slot is provided on the side wall of the base, and an insertion hole is provided on the side wall of the ring body, and the insertion rod passes through the insertion hole and is inserted into the slot.

[0014] Furthermore, the insertion rod includes a pull block and a rod body. When working, one end of the rod body passes through the insertion hole and is inserted into the slot, and the other end of the rod body is provided with a pull block.

[0015] Furthermore, the cross-sectional shapes of the transverse sliding groove, the first transverse sliding block, and the second transverse sliding block are all convex.

[0016] Furthermore, the end surface of the first horizontal slide block close to the first limiting surface is the third limiting surface, and the end surface of the second horizontal slide block close to the first limiting surface is the fourth limiting surface;

[0017] The distance between the third limiting surface and the first limiting surface is smaller than the distance between the fourth limiting surface and the first limiting surface.

[0018] Furthermore, both sides of the pull block are provided with pull grooves.

[0019] The present invention has the following advantages: the powder tabletting device for micro-area in-situ analysis of samples of the present invention realizes that the rock powder can be pressed more compactly without adding a binder, thereby improving the sensitivity of in-situ analysis element testing; the efficiency is improved, and the splicing plate is moved backward after the tabletting is completed by setting the splicing plate, and the sample tablet is taken out from the side of the groove, without the need for secondary reverse pressing to take out the sample tablet, thereby further improving the efficiency; at the same time, the surface of the pressed powder tablet is smooth, avoiding problems such as mineral effect and particle effect, and has overall representativeness; in addition, the device places a plastic ring in the groove, then sets the rock powder in the plastic ring, and then fills the groove with a polyethylene powder filling body to cover the top and outside of the plastic ring, and then presses it by the tableting equipment, thereby realizing the setting of plastic rings of different sizes to press stable tablet-formed rock powder of different sizes and specifications, which can be suitable for the sample bin sizes of different analytical instruments and can be directly sent into the sample analysis room of the analytical instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0021] The structures, proportions, sizes, etc. illustrated in this specification are intended only to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall still fall within the scope of the technical contents disclosed herein.

[0022] Figure 1 A three-dimensional diagram of a powder tabletting device for in-situ analysis of samples in micro areas, provided in some embodiments of the present invention.

[0023] Figure 2 A top view of a powder tabletting device for in-situ analysis of samples in micro areas, provided in some embodiments of the present invention.

[0024] Figure 3 A side view of a powder tabletting device for in-situ analysis of samples in micro areas, provided in some embodiments of the present invention.

[0025] Figure 4 A cross-sectional view of a powder tabletting device for in-situ analysis of samples in micro-areas provided in some embodiments of the present invention.

[0026] Figure 5This is a first perspective view of a base of a powder tabletting device for micro-area in-situ analysis of samples provided by some embodiments of the present invention.

[0027] Figure 6 A second perspective view of a base of a powder tabletting device for micro-area in-situ analysis of a sample provided by some embodiments of the present invention.

[0028] Figure 7 A three-dimensional diagram of a fixing ring of a powder tabletting device for micro-area in-situ analysis of samples provided in some embodiments of the present invention.

[0029] Figure 8 A first perspective view of a splicing plate of a powder tabletting device for micro-area in-situ analysis of samples provided in some embodiments of the present invention.

[0030] Figure 9 A second perspective view of a splicing plate of a powder tabletting device for micro-area in-situ analysis of samples provided in some embodiments of the present invention.

[0031] Figure 10 A three-dimensional diagram of a pressing column of a powder tabletting device for micro-area in-situ analysis of samples provided in some embodiments of the present invention.

[0032] Figure 11 A three-dimensional diagram of an insertion rod of a powder tabletting device for micro-area in-situ analysis of samples provided in some embodiments of the present invention.

[0033] In the figure: 1. base, 12. second limiting surface, 13. slot, 14. vertical slide, 15. horizontal slide, 16. fifth limiting surface, 2. fixing ring, 21. ring body, 22. jack, 23. vertical slider, 3. splicing plate, 31. plate body, 311. first limiting surface, 32. first horizontal slider, 321. third limiting surface, 33. second horizontal slider, 331. fourth limiting surface, 4. pressure column, 41. column part, 42. positioning ring, 5. insertion rod, 51. pull block, 52. rod body, 53. pull groove, 6. plastic ring, 7. polyethylene powder filling body. DETAILED DESCRIPTION

[0034] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0035] like Figures 1 to 11As shown, a device for pressing powder tablets for in-situ analysis of samples in micro areas in an embodiment of the first aspect of the present invention includes a base 1, a fixing ring 2, a splicing plate 3, a pressing column 4, an inserting rod 5, a plastic ring 6 and a polyethylene powder filling body 7.

[0036] There are multiple splicing plates 3, and all of the splicing plates 3 can be slidably connected to the upper surface of the base 1. The fixing ring 2 and the outer wall of the base 1 can be slidably connected up and down. Each splicing plate 3 has a first limiting surface 311.

[0037] When pressing the sheets, multiple splicing plates 3 are slid and spliced on the base 1 and multiple first limiting surfaces 311 are combined to form a groove. The fixing ring 2 is sleeved on the outer peripheral side of the multiple splicing plates 3 after splicing. The insertion rod 5 passes through the fixing ring 2 and is inserted on the base 1, and the pressure column 4 is inserted in the groove.

[0038] The plastic ring 6 is set in the groove, and the plastic ring 6 is used to place rock powder. The polyethylene powder filler 7 is used to fill the groove to cover the top and outside of the plastic ring 6.

[0039] In the above embodiment, it should be noted that the base 1 is cylindrical, the fixing ring 2 is annular, and the splicing plate 3 is fan-shaped. When the rock powder needs to be tableted, multiple splicing plates 3 are slid and spliced on the base 1 to form a cylindrical structure in the shape of an annular ring. The first limiting surfaces 311 of the multiple splicing plates 3 are combined to form a circular groove. Then the fixing ring 2 is slid upward until the upper end surface of the fixing ring 2 is flush with the upper end surface of the splicing plate 3. At this time, a part of the fixing ring 2 is sleeved on the base 1, and the fixing ring 2 is fixed. The other part of the fixed ring 2 is sleeved on a cylindrical structure formed by splicing multiple splicing plates 3 into a circular ring shape, and then the fixed ring 2 is fixed to the base 1 by the insertion rod 5, and the multiple splicing plates 3 are limited by the fixed ring 2; when tableting is required, the plastic ring 6 is placed in the groove, and the rock powder is poured into the plastic ring 6, and the polyethylene powder filling body 7 is filled into the groove to cover the rock powder in the plastic ring 6 and the outside of the plastic ring 6, and then the pressing column 4 is inserted into the groove, and then the tablet press is used to press the pressing column 4 for tableting.

[0040] After the rock powder is pressed into a tablet sample, first pull the pressing column 4 out of the groove, then pull the insert 5 out of the base 1, then slide the fixing ring 2 downward until the fixing ring 2 is completely separated from the splicing plate 3, then slide the multiple splicing plates 3 out on the base 1, and then take the tablet sample out from the side. By placing the sample on the plastic ring 6, the shape and size of the rock powder can be fixed during the sample pressing. At the same time, because the plastic ring 6 has a certain degree of deformability, when the polyethylene powder filling body covers the top of the rock powder and the outside of the plastic sealing ring 6 and is pressurized, the ring wall of the plastic ring 6 also applies pressure to the surrounding side of the rock powder, so that the rock powder can be better formed into tablets.

[0041] The technical effects achieved by the above embodiments are as follows: the powder tabletting device for in-situ analysis of samples in micro-areas of the present invention realizes that the rock powder can be pressed more compactly without adding a binder, thereby improving the sensitivity of in-situ analysis element testing; improving efficiency, and realizing that the splicing plate is moved backward after the tabletting is completed by setting the splicing plate, and the sample tablet is taken out from the side of the groove, without the need for secondary reverse pressing to take out the sample tablet, thereby further improving efficiency; at the same time, the surface of the pressed powder tablet is smooth, avoiding problems such as mineral effect and particle effect, and having overall representativeness; in addition, the device places a plastic ring in the groove, and then sets the rock powder in the plastic ring, and then fills the groove with a polyethylene powder filling body to cover the top and outside of the plastic ring, and then presses it by the tableting equipment, thereby realizing the setting of plastic rings of different sizes to press stable tablet-formed rock powder of different sizes and specifications, which can be suitable for the sample bin sizes of different analytical instruments and can be directly sent into the sample analysis chamber of the analytical instrument.

[0042] Optional, such as Figures 1 to 11 As shown, in some embodiments, a vertical slide groove 14 is provided on the side wall of the base 1, the fixing ring 2 includes a ring body 21 and a vertical slider 23, the inner side wall of the ring body 21 is provided with a vertical slider 23, the ring body 21 is sleeved on the base 1, and the vertical slider 23 can be slidably connected in the vertical slide groove 14.

[0043] In the above optional embodiment, it should be noted that there are multiple vertical slide grooves 14, and multiple vertical slide grooves 14 are distributed in a circular array on the outer periphery of the base 1. The number of vertical sliders 23 is equal to the number of vertical slide grooves 14, and multiple vertical sliders 23 are slidingly connected in the vertical slide grooves 14 in a one-to-one manner. The cross-sectional shape of the vertical slide groove 14 and the cross-sectional shape of the vertical slider 23 are both "convex" shapes. The top end face of the vertical slide groove 14 is the fifth limiting surface 16. When the tableting operation is performed, the fifth limiting surface 16 abuts against the upper end face of the vertical slider 23.

[0044] The beneficial effects of the above optional embodiments are: reliable sliding of the fixing ring 2 relative to the base 1 is achieved through the coordinated arrangement of the vertical slide groove 14 and the vertical slider 23, and reliable positioning of the fixing ring 2 can be achieved through the arrangement of the fifth limiting surface 16 abutting against the upper end surface of the vertical slider 23, thereby ensuring the reliability of the fixing ring 2 in limiting and fixing the multiple splicing plates 3.

[0045] Optional, such as Figures 1 to 11 As shown, in some embodiments, a plurality of transverse sliding grooves 15 are provided on the top wall of the base 1. Each splicing plate 3 includes a plate body 31 and a first transverse sliding block 32. The first transverse sliding block 32 is provided on one side of the plate body 31. When pressing, the first transverse sliding block 32 is slidably connected in the transverse sliding groove 15 in a one-to-one correspondence. The inner end surface of the plate body 31 serves as a first limiting surface 311.

[0046] The splicing plate 3 further includes a second horizontal slide block 33. The second horizontal slide block 33 is provided on the other side of the plate body 31. When the sample 6 after tableting is taken out, the second horizontal slide block 33 is slidably connected in the horizontal slide groove 15 in a one-to-one correspondence.

[0047] The cross-sectional shape of the horizontal sliding groove 15, the cross-sectional shape of the first horizontal sliding block 32 and the cross-sectional shape of the second horizontal sliding block 33 are all "convex" shapes;

[0048] The plurality of transverse sliding grooves 15 are distributed in a circular array.

[0049] The end surface of the first transverse sliding block 32 close to the first limiting surface 311 is a third limiting surface 321 , and the end surface of the second transverse sliding block 33 close to the first limiting surface 311 is a fourth limiting surface 331 ;

[0050] The distance between the third limiting surface 321 and the first limiting surface 311 is smaller than the distance between the fourth limiting surface 331 and the first limiting surface 311 .

[0051] In the above optional embodiment, it should be noted that the inner end surface of the horizontal sliding groove 15 is the second limiting surface 12, the first limiting surface 311, the second limiting surface 12, the third limiting surface 321 and the fourth limiting surface 331 are all arc surfaces, and the arcs of the second limiting surface 12, the third limiting surface 321 and the fourth limiting surface 331 have the same center;

[0052] When the tableting operation is carried out, the second limiting surface 12 and the third limiting surface 321 abut against each other; when the sample 6 after tableting needs to be removed, the other splicing plates 3 are removed, and a splicing plate 3 is used to be slidably connected to the horizontal sliding groove 15 through the corresponding second horizontal sliding block 33, and the second sliding block 33 is slid to drive the first limiting surface 311 of the plate body 31 to move, and the first limiting surface 311 moves to push the sample 6 after tableting to separate it from the base 1, thereby ensuring the integrity of the sample 6 after tableting after separation from the base 1, and increasing the convenience of separating the sample 6 from the base 1.

[0053] The beneficial effect of the above optional embodiment is that by setting the distance between the third limiting surface 321 and the first limiting surface 311 to be smaller than the distance between the fourth limiting surface 331 and the first limiting surface 311, the integrity of the sample 6 after being separated from the base 1 after tableting is ensured, and the convenience of separating the sample 6 from the base 1 is increased.

[0054] Optional, such as Figures 1 to 11 As shown, in some embodiments, the pressure column 4 includes a column portion 41 and a positioning ring 42 , and a positioning ring 42 is provided at one end of the column portion 41 ; when working, the column portion 41 is inserted into the groove.

[0055] In the above optional embodiment, it should be noted that the positioning ring 42 is an annular column structure, and the column portion 41 and the positioning ring 42 are integrally formed.

[0056] The beneficial effect of the above optional embodiment is that the setting of the positioning ring 42 can realize the setting of the tablet press shaft centering, realize the reliable fixation of the mold during tableting, and thus ensure the reliability of powder tableting.

[0057] Optional, such as Figures 1 to 11 As shown, in some embodiments, a slot 13 is formed on the side wall of the base 1 , and a plug hole 22 is formed on the side wall of the ring body 21 . The insertion rod 5 passes through the plug hole 22 and is inserted into the slot 13 .

[0058] In the above optional embodiment, it should be noted that the number of slots 13 and sockets 22 is at least two, at least two slide grooves 13 are distributed in a circular array on the side wall of the base 1, and at least two sockets 22 are distributed in a circular array on the side wall of the ring body 21, and the sockets 22 and slots 13 are coaxially arranged in a one-to-one correspondence.

[0059] The beneficial effect of the above optional embodiment is that the fixing ring 2 is reliably fixed during operation by the coordinated arrangement of the inserting rod 5 , the slot 13 and the inserting hole 22 .

[0060] Optional, such as Figures 1 to 11 As shown, in some embodiments, the insertion rod 5 includes a pull block 51 and a rod body 52. When working, one end of the rod body 52 passes through the insertion hole 22 and is inserted into the slot 13, and the other end of the rod body 52 is provided with the pull block 51;

[0061] Pull grooves 53 are formed on both sides of the pull block 51 .

[0062] The beneficial effect of the above optional embodiment is that the arrangement of the pull block 51 and the pull groove 53 ensures the convenience of inserting and removing the insertion rod 5.

[0063] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made thereto. Therefore, such modifications and improvements, without departing from the spirit of the present invention, are intended to be within the scope of protection claimed herein.

[0064] The terms "upper", "lower", "left", "right", "middle", etc. used in this specification are only for the convenience of description and are not intended to limit the scope of the present invention. Changes or adjustments to their relative relationships should be regarded as within the scope of the present invention without substantially changing the technical content.

Claims

1. A powder tabletting device for micro-area in-situ analysis of sample powder, characterized in that: It includes a base, a fixing ring, a splicing plate, a pressure column, an insert rod, a plastic ring and a polyethylene powder filling body; There are multiple splicing plates, and the multiple splicing plates can be slidably connected to the upper surface of the base. The fixing ring and the outer side wall of the base can be slidably connected up and down, and each splicing plate (3) has a first limiting surface; During sheet pressing, the plurality of splicing plates are slidably spliced on the base and the plurality of first limiting surfaces are combined to form a groove, the fixing ring is sleeved on the outer peripheral side of the plurality of spliced splicing plates, the insertion rod passes through the fixing ring and is inserted into the base, and the pressure column is inserted into the groove; The plastic ring is arranged in the groove, and the plastic ring is used to place rock powder. The polyethylene powder filler is used to fill the groove to cover the rock powder in the plastic ring and the outside of the plastic ring.

2. The device according to claim 1, characterized in that A vertical sliding groove is provided on the side wall of the base. The fixed ring includes a ring body and a vertical sliding block. The vertical sliding block is provided on the inner side wall of the ring body. The ring body is sleeved on the base. The vertical sliding block can be slidably connected in the vertical sliding groove.

3. The device according to claim 1, characterized in that The top wall of the base is provided with a plurality of transverse sliding grooves, and each of the splicing plates includes a plate body and a first transverse sliding block. The first transverse sliding block is provided on one side of the plate body. When pressing the plate, the first transverse sliding block is slidably connected in the transverse sliding groove one by one, and the end face of the inner side of the plate body is the first limiting surface.

4. The device according to claim 3, characterized in that The splicing plate (3) further comprises a second transverse sliding block, and the second transverse sliding block is provided on the other side of the plate body. When the sample after tableting is taken out, the second transverse sliding block can be slidably connected in the transverse sliding groove.

5. The device according to claim 1, characterized in that The pressure column includes a column part and a positioning ring, and the positioning ring is provided at one end of the column part; when working, the column part is inserted into the groove.

6. The device according to claim 2, characterized in that A slot is provided on the side wall of the base, and an insertion hole is provided on the side wall of the ring body. The insertion rod passes through the insertion hole and is inserted into the slot.

7. The device according to claim 6, characterized in that The insertion rod comprises a pull block and a rod body. When working, one end of the rod body passes through the insertion hole and is inserted into the slot, and the other end of the rod body is provided with the pull block.

8. The device according to claim 4, characterized in that The cross-sectional shape of the transverse sliding groove, the cross-sectional shape of the first transverse sliding block, and the cross-sectional shape of the second transverse sliding block are all convex.

9. The device according to claim 4, characterized in that The end surface of the first transverse sliding block close to the first limiting surface is the third limiting surface, and the end surface of the second transverse sliding block close to the first limiting surface is the fourth limiting surface; The distance between the third limiting surface and the first limiting surface is smaller than the distance between the fourth limiting surface and the first limiting surface.

10. The device according to claim 7, characterized in that Both sides of the pulling block are provided with pulling grooves.

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