Precious metal sample tablet press

Abstract

The utility model discloses a precious metal sample tablet press which comprises a machine box, a fixing seat, an upper pressing plate and a lower pressing plate, the upper pressing plate and the lower pressing plate are arranged between the fixing seat and the machine box, channels are arranged on the upper pressing plate and the lower pressing plate, a winding drum is arranged on one side of the upper pressing plate, dust-free cloth is wound around the outer portion of the winding drum, and the dust-free cloth is wound around the outer portion of the winding drum. One end of the dust-free cloth penetrates through the channel of the upper pressing plate and penetrates through the channel of the lower pressing plate along the opposite faces of the upper pressing plate and the lower pressing plate. The device is simple in structure, the opposite faces of the upper pressing plate and the lower pressing plate are both covered with the dust-free cloth, therefore, impurities are prevented from making contact with a sample, a section which is used before can be moved away in the mode that the dust-free cloth is pulled, a new section of dust-free cloth makes contact with a new sample, and operation convenience and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of precious metal processing, in particular to a precious metal sample tablet press. Background Art

[0002] The pretreatment of precious metal samples is a crucial step in precious metal detection. The suitability of the pretreatment method directly affects the precision and accuracy of the analysis results.

[0003] At present, precious metal samples are pressed into tablets before testing. However, the current tablet press has a simple structure. Due to the presence of impurities on the adjustment column, chips will fall off during the tableting process. The fallen impurities will come into contact with the sample, affecting the subsequent detection accuracy. The current solution is to wrap the bottom of the adjustment column with dust-free cotton, but this method is more troublesome to operate. The dust-free cotton will fall off during use, and it is also troublesome to replace it, affecting the overall operating efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a precious metal sample tablet press, which can activate the isolation function on both the upper surface and the lower surface of the precious metal through a pullable dust-free cloth, so as to solve the problems raised in the above background technology.

[0005] The utility model is realized through the following technical solutions: a precious metal sample tablet press, comprising a chassis, a fixed seat, an upper pressing plate and a lower pressing plate, the upper pressing plate and the lower pressing plate being arranged between the fixed seat and the chassis, the upper pressing plate and the lower pressing plate being provided with channels, a winding drum being provided on one side of the upper pressing plate, a dust-free cloth being wound around the outside of the winding drum, one end of the dust-free cloth passing through the channel of the upper pressing plate, and passing through the channel of the lower pressing plate along the opposite surfaces of the upper pressing plate and the lower pressing plate, a section of the dust-free cloth located between the upper pressing plate and the lower pressing plate being provided with an external pulling mechanism for pulling the dust-free cloth outward, and an adjusting column connected to the upper pressing plate being installed on the fixed seat.

[0006] As an optimal technical solution, the external pulling mechanism includes a roller, multiple horizontal plates and vertical plates, multiple shafts, multiple bearings and torsion springs. The horizontal plates are respectively installed on both sides of the upper pressure plate, and the bearings are embedded in one end of the horizontal plate. One end of the shaft is installed in the inner ring of the bearing, and the other end is fixedly connected to the vertical plate. The roller is arranged on the inner side of the dust-free cloth, and both ends of the roller are installed on the vertical plate. The torsion springs are all sleeved on the outside of the shaft, one end of the torsion spring is installed on the vertical plate, and the other end is installed on the horizontal plate.

[0007] As an optimal technical solution, support plates are provided at both ends of the winding drum, slots are provided on the support plates, the rotating shafts at both ends of the winding drum are inserted into the slots, and one end of the support plates is installed on the external pulling mechanism.

[0008] As a preferred technical solution, a power mechanism is installed inside the chassis, a piston rod of the power mechanism extends to the outside of the chassis, and a push plate is installed, and the push plate is fixedly connected to the lower pressure plate.

[0009] As an optimal technical solution, an adjustment hole is provided in the middle of the fixing seat, the adjusting column is threadedly connected to the adjustment hole, a handwheel is installed at one end of the adjusting column, and a connecting groove is provided at the other end. A connecting portion is protruded on the surface of the upper pressure plate, and the connecting portion is movably arranged in the connecting groove. Both the connecting portion and the connecting groove are arranged in a conical structure.

[0010] As a preferred technical solution, multiple support columns are installed between the fixing base and the chassis.

[0011] As a preferred technical solution, both the upper pressing plate and the lower pressing plate are made of titanium metal material.

[0012] The beneficial effects of the utility model are as follows: the utility model has a simple structure, and the opposing surfaces of the upper pressing plate and the lower pressing plate are covered with dust-free cloth, thereby avoiding contact between impurities and samples, and after use once, the previously used section can be removed by pulling the dust-free cloth, and a new section of dust-free cloth can be brought into contact with the new sample, which increases the convenience and efficiency of operation, and can better prevent debris from falling, thereby improving the accuracy of sample detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order 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 use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a side view of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the dust-free cloth distribution in the utility model;

[0017] Figure 4 It is a structural schematic diagram of the upper pressing plate and the lower pressing plate of the utility model.

[0018] Among them, 1. Chassis; 2. Fixed seat; 3. Adjustment column; 4. Upper pressure plate; 5. Lower pressure plate; 6. Dust-free cloth; 7. Push plate; 8. Support column; 9. Handwheel; 10. Winding drum; 11. Support plate; 12. Vertical plate; 13. Roller; 14. Torsion spring; 15. Shaft; 16. Horizontal plate. DETAILED DESCRIPTION

[0019] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0020] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0021] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or similar features. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0022] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, a precious metal sample tablet press of the present invention comprises a chassis 1, a fixing base 2, an upper pressing plate 4 and a lower pressing plate 5, wherein the upper pressing plate 4 and the lower pressing plate 5 are arranged between the fixing base 2 and the chassis 1, and channels are provided on the upper pressing plate 4 and the lower pressing plate 5, and a winding drum 10 is provided on one side of the upper pressing plate 4, and a dust-free cloth 6 is wound around the outside of the winding drum 10, and one end of the dust-free cloth 6 passes through the channel of the upper pressing plate 4, and passes through the channel of the lower pressing plate 5 along the opposite surfaces of the upper pressing plate 4 and the lower pressing plate 5, and a section of the dust-free cloth 6 located between the upper pressing plate 4 and the lower pressing plate 5 is provided with an external pulling mechanism for pulling the dust-free cloth 6 outward, and an adjusting column 3 connected to the upper pressing plate 4 is installed on the fixing base 2;

[0023] Among them, the exposed end of the dust-free cloth can be connected to the winding device, and the dust-free cloth can be automatically pulled by the winding device, further increasing the convenience of operation.

[0024] In this embodiment, the external pulling mechanism includes a roller 13, multiple horizontal plates 16 and vertical plates 12, multiple shafts 15, multiple bearings and torsion springs 14. The horizontal plates 16 are respectively installed on both sides of the upper pressure plate 4, and the bearings are embedded in one end of the horizontal plate 16. One end of the shaft 15 is installed in the inner ring of the bearing, and the other end is fixedly connected to the vertical plate 12. The roller 13 is arranged on the inner side of the dust-free cloth 6, and both ends of the roller 13 are installed on the vertical plate 12. The torsion springs 14 are all sleeved on the outside of the shaft 15, one end of the torsion spring 14 is installed on the vertical plate 12, and the other end is installed on the horizontal plate 16.

[0025] In this embodiment, support plates 11 are provided at both ends of the winding drum 10, and slots are provided on the support plates 11. The rotating shafts at both ends of the winding drum 10 are inserted into the slots, and one end of the support plates 11 is installed on the external pulling mechanism. After a roll is used, the winding drum can be directly taken out from the slot upwards, which is convenient for disassembly and assembly.

[0026] In this embodiment, a power mechanism is installed inside the chassis 1 , a piston rod of the power mechanism extends to the outside of the chassis 1 , and a push plate 7 is installed thereon, and the push plate 7 is fixedly connected to the lower pressure plate 5 .

[0027] In this embodiment, an adjustment hole is provided in the middle of the fixing seat 2, and the adjusting column 3 is threadedly connected to the adjustment hole. A handwheel 9 is installed at one end of the adjusting column 3, and a connecting groove is provided at the other end. A connecting portion is protruded on the surface of the upper pressure plate, and the connecting portion is movably arranged in the connecting groove. The connecting portion and the connecting groove are both arranged in a conical structure; wherein, during the rotation of the adjusting column, the adjusting column will rotate on its own, thereby avoiding driving the rotation of the upper pressure plate.

[0028] In this embodiment, a plurality of support columns 8 are installed between the fixing base 2 and the chassis 1 .

[0029] In this embodiment, the upper pressing plate 4 and the lower pressing plate 5 are both made of titanium metal material, which increases the firmness, and the thickness of the upper pressing plate and the lower pressing plate is large to avoid being flattened.

[0030] When in use, place the precious metal sample on the lower pressing plate and change the rising height of the adjustment column according to the degree of extrusion. When adjusting, you can directly rotate the hand wheel. The rotation of the hand wheel drives the adjustment column to move up and down along the adjustment hole to increase adaptability.

[0031] After the adjustment is completed, the power mechanism can be started to extend the piston rod of the power mechanism. The extension of the piston rod drives the lower pressing plate. During the rising process of the lower pressing plate, the section of the dust-free cloth between the upper pressing plate and the lower pressing plate is in a relaxed state. Therefore, the vertical plate and the roller can be rotated outward by the torsion spring, and the dust-free cloth can be pulled outward by the roller, so that the dust-free cloth is always in a straightened state, avoiding affecting the pressing plate.

[0032] After using it once, the dust-free cloth can be directly pulled to release it from the reel. By pulling the dust-free cloth, the previously used section can be removed and a new section of dust-free cloth can be brought into contact with the new sample, which increases the convenience and efficiency of operation, and can better prevent debris from falling, thereby improving the accuracy of sample testing.

[0033] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that do not require creative effort should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined in the claims.

Claims

1. A precious metal sample tablet press, characterized in that: The utility model comprises a chassis (1), a fixing seat (2), an upper pressing plate (4) and a lower pressing plate (5), wherein the upper pressing plate (4) and the lower pressing plate (5) are arranged between the fixing seat (2) and the chassis (1), and channels are provided on the upper pressing plate (4) and the lower pressing plate (5), and a winding drum (10) is provided on one side of the upper pressing plate (4), and a dust-free cloth (6) is wound around the outside of the winding drum (10), and one end of the dust-free cloth (6) passes through the channel of the upper pressing plate (4) and passes through the channel of the lower pressing plate (5) along the opposite surface of the upper pressing plate (4) and the lower pressing plate (5), and an external pulling mechanism for pulling the dust-free cloth (6) outward is provided on a section of the dust-free cloth (6) between the upper pressing plate (4) and the lower pressing plate (5), and an adjusting column (3) connected with the upper pressing plate (4) is installed on the fixing seat (2).

2. The precious metal sample tablet press according to claim 1, characterized in that: The external pulling mechanism includes a roller (13), a plurality of horizontal plates (16) and vertical plates (12), a plurality of shafts (15), a plurality of bearings and torsion springs (14). The horizontal plates (16) are respectively installed on both sides of the upper pressure plate (4). The bearings are embedded in one end of the horizontal plate (16). One end of the shaft (15) is installed in the inner ring of the bearing, and the other end is fixedly connected to the vertical plate (12). The roller (13) is arranged on the inner side of the dust-free cloth (6). Both ends of the roller (13) are installed on the vertical plate (12). The torsion springs (14) are sleeved on the outside of the shaft (15). One end of the torsion spring (14) is installed on the vertical plate (12), and the other end is installed on the horizontal plate (16).

3. The precious metal sample tablet press according to claim 1, characterized in that: Both ends of the winding drum (10) are provided with support plates (11), and slots are provided on the support plates (11). The rotating shafts at both ends of the winding drum (10) are inserted into the slots, and one end of the support plates (11) is installed on the external pulling mechanism.

4. The precious metal sample tablet press according to claim 1, characterized in that: A power mechanism is installed inside the chassis (1), a piston rod of the power mechanism extends to the outside of the chassis (1), and a push plate (7) is installed thereon, and the push plate (7) is fixedly connected to the lower pressure plate (5).

5. The precious metal sample tablet press according to claim 1, characterized in that: An adjustment hole is provided in the middle of the fixing seat (2), and the adjustment column (3) is threadedly connected to the adjustment hole. A hand wheel (9) is installed at one end of the adjustment column (3), and a connecting groove is provided at the other end. A connecting portion is protruded on the surface of the upper pressure plate, and the connecting portion is movably arranged in the connecting groove. Both the connecting portion and the connecting groove are arranged in a conical structure.

6. The precious metal sample tablet press according to claim 1, characterized in that: A plurality of support columns (8) are installed between the fixing base (2) and the chassis (1).

7. The precious metal sample tablet press according to claim 1, characterized in that: The upper pressing plate (4) and the lower pressing plate (5) are both made of titanium metal material.

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