X fluorescent powder sample pressing mold structure

Abstract

The utility model discloses an X fluorescent powder sample pressing mold structure which comprises a sample pressing barrel and a base, a pressing rod is inserted into the top of the inner wall of the sample pressing barrel, the top end of the pressing rod is fixedly connected with an upper pressing block, positioning grooves are formed in the four side edges of the bottom end of the sample pressing barrel, positioning columns are clamped on the inner walls of the four positioning grooves, and the upper pressing block is fixedly connected with the upper pressing block. The four positioning columns are fixedly connected to the four side edges of the top end of the base respectively, a demolding groove is formed in the bottom end of the base, an annular clamping groove is formed in the bottom of the inner wall of the demolding groove, a tungsten carbide gasket is placed in the sample pressing barrel, connecting bases are fixedly connected to the four side edges of the base, and supporting rods are rotatably connected to the inner walls of the connecting bases. According to the X fluorescent powder sample pressing mold structure, the sample pressing mold can press two sheet-shaped samples at a time, the sheet pressing efficiency of X fluorescent powder is high, and the X fluorescent powder is not prone to sliding in the sheet pressing operation process by being matched with the rubber pad on the bottom face of the supporting rod.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a sample pressing mold structure for X-ray fluorescence powder samples. Background Technique

[0002] In X-ray fluorescence analysis, the powder pressing method is environmentally friendly, simple to operate, low in cost, and accurate and reliable in results. It is a main pretreatment method for X-ray fluorescence analysis.

[0003] However, the existing sample pressing molds for X-ray fluorescence powder samples have the following disadvantages:

[0004] (1) The existing sample pressing molds have a base during sample pressing and a demolding device during demolding. The two need to be used sequentially during sample pressing, but they cannot be combined, which is rather troublesome to use. Moreover, the sample pressing mold can only press one sample at a time, resulting in low efficiency for pressing X-ray fluorescence powder samples.

[0005] (2) The existing sample pressing molds lack anti-slip structures and are prone to sliding during the operation of pressing X-ray fluorescence powder samples. Content of the Utility Model

[0006] The purpose of the utility model is to provide a sample pressing mold structure for X-ray fluorescence powder samples to solve the problems in the above background technique that the existing sample pressing molds have a base during sample pressing and a demolding device during demolding. The two need to be used sequentially during sample pressing, but they cannot be combined, which is rather troublesome to use. Moreover, the sample pressing mold can only press one sample at a time, resulting in low efficiency for pressing X-ray fluorescence powder samples, and the sample pressing mold lacks anti-slip structures and is prone to sliding during the operation of pressing X-ray fluorescence powder samples.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A sample pressing mold structure for X-ray fluorescence powder samples, including a sample pressing cylinder and a base. A pressing rod is inserted into the top of the inner wall of the sample pressing cylinder. The top end of the pressing rod is fixedly connected with an upper pressing block. Positioning grooves are opened on the four side edges at the bottom end of the sample pressing cylinder. The inner walls of the four positioning grooves are respectively engaged with positioning columns, and the four positioning columns are respectively fixedly connected to the four side edges at the top end of the base. A demolding groove is opened at the bottom end of the base. An annular clamping groove is opened at the bottom of the inner wall of the demolding groove. A tungsten carbide gasket is placed inside the sample pressing cylinder. Connecting seats are fixedly connected to the four side edges of the base. A support rod is rotatably connected to the inner wall of the connecting seat. A rubber pad is fixedly connected to the bottom end of the support rod. A connecting groove is opened on the side wall of the support rod, and a spring is fixedly connected to the inner wall of the connecting groove.

[0008] When using a sample pressing die structure for X-ray fluorescence powder samples of this technical solution, the sample pressing die can press two sheet samples at a time, with high pressing efficiency for X-ray fluorescence powder. With the rubber pad on the bottom surface of the support rod, it is not easy to slide during the operation of pressing the X-ray fluorescence powder into tablets.

[0009] As a preferred technical solution of the present utility model, one end of the spring is fixedly connected with a clamping block, and clamping slots are formed at both the bottom and the top of the connecting seat. Under the action of elastic force, the spring will push the clamping block out of the slot.

[0010] As a preferred technical solution of the present utility model, a convex platform is provided in the middle of the top end of the base, and the convex platform is engaged with the inner wall of the sample pressing cylinder. The provided convex platform is used for pressing the X-ray fluorescence powder into tablets.

[0011] As a preferred technical solution of the present utility model, the clamping block is engaged with the inner wall of one of the clamping slots. The end of the clamping block is inserted into the clamping slot to lock the orientation of the support rod.

[0012] As a preferred technical solution of the present utility model, a rubber sleeve is fixedly sleeved in the middle of the sample pressing cylinder. The provided rubber sleeve makes it more stable and not easy to slip off when holding the sample pressing cylinder by hand.

[0013] As a preferred technical solution of the present utility model, a feeding groove is formed at the top end of the inner wall of the sample pressing cylinder. The provided feeding groove facilitates the feeding of the X-ray fluorescence powder into the interior of the sample pressing cylinder.

[0014] As a preferred technical solution of the present utility model, teeth are provided on the side wall of the upper pressing block. The provided teeth make it not easy for the hand to slip off when pulling out the upper pressing block.

[0015] As a preferred technical solution of the present utility model, a limiting portion is provided at one end of the clamping block. The provided limiting portion prevents the clamping block from falling off from the connecting slot.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] 1. By providing a demoulding groove under the base of the sample pressing die, after pressing the sample, only the base needs to be turned over to demould the sheet sample, without the need to use an additional demoulding device, which is more convenient to operate. And through the design of laying a tungsten carbide gasket, the sample pressing die can press two sheet samples at a time, with high pressing efficiency for X-ray fluorescence powder;

[0018] 2. By providing four support rods at the base of the sample pressing die, they can be unfolded, and the clamping block is inserted into the lower clamping slot under the action of the spring to lock the position of the support rod, which can increase the contact area between the base of the sample pressing die and the tabletop. With the rubber pad on the bottom surface of the support rod, it is not easy to slide during the operation of pressing the X-ray fluorescence powder into tablets. Brief Description of the Drawings

[0019] Figure 1 is a perspective view of the present utility model;

[0020] Figure 2 is a sectional view of the present utility model;

[0021] Figure 3 is an exploded view of the present utility model;

[0022] Figure 4 is a sectional view of the support rod of the present utility model.

[0023] In the figure: 1, sample pressing cylinder; 2, base; 3, pressing rod; 4, tungsten carbide gasket; 5, upper pressing block; 6, positioning groove; 7, positioning post; 8, boss; 9, demolding groove; 10, annular clamping groove; 11, connecting seat; 12, support rod; 13, bayonet; 14, connecting groove; 15, spring; 16, clamping block; 17, rubber pad; 18, rubber sleeve; 19, feeding groove; 20, tooth; 21, limiting part. Detailed Description of the Preferred Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-4 , the present utility model provides a structure of an X-ray fluorescence powder sample pressing die, including a sample pressing cylinder 1 and a base 2. The top of the inner wall of the sample pressing cylinder 1 is plugged with a pressing rod 3. The top end of the pressing rod 3 is fixedly connected with an upper pressing block 5. Positioning grooves 6 are opened on the four side edges of the bottom end of the sample pressing cylinder 1. The inner walls of the four positioning grooves 6 are respectively engaged with positioning posts 7, and the four positioning posts 7 are respectively fixedly connected to the four side edges of the top end of the base 2, so that the splicing is more stable. A demolding groove 9 is opened at the bottom end of the base 2, and an annular clamping groove 10 is opened at the bottom of the inner wall of the demolding groove 9 for extruding the sheet sample. A tungsten carbide gasket 4 is placed inside the sample pressing cylinder 1 for separating the powder. Connecting seats 11 are fixedly connected to the four side edges of the base 2. The inner wall of the connecting seat 11 is rotatably connected with a support rod 12 to play a supporting role. A rubber pad 17 is fixedly connected to the bottom end of the support rod 12 to improve the anti-slip property. A connecting groove 14 is opened on the side wall of the support rod 12, and a spring 15 is fixedly connected to the inner wall of the connecting groove 14.

[0026] In use, first, the sample pressing cylinder 1 is clamped at the top of the base 2 through the cooperation of the positioning groove 6 and the positioning post 7. A quantity of X-ray fluorescence powder is put into the interior of the sample pressing cylinder 1, and then a tungsten carbide gasket 4 is put in for separation. Then, another quantity of X-ray fluorescence powder is continuously put in, and the pressing rod 3 is inserted into the interior of the sample pressing cylinder 1 and sent to the sample press to press down the upper pressing block 5, so as to press the X-ray fluorescence powder inside the sample pressing cylinder 1 into flakes, and there are two flakes, upper and lower. Then, the base 2 is removed and turned over, and the sample pressing cylinder 1 is clamped into the annular clamping groove 10, and the pressing rod 3 is continuously pressed down to extrude the two flake samples and the tungsten carbide gasket 4 inside the sample pressing cylinder 1 out into the demoulding groove 9, completing the tablet pressing work of the X-ray fluorescence powder.

[0027] One end of the spring 15 is fixedly connected with a clamping block 16. Bayonet openings 13 are provided at both the bottom and the top of the connecting seat 11. The clamping block 16 is clamped to the inner wall of one of the bayonet openings 13 to play a locking role. A limiting portion 21 is provided at one end of the clamping block 16 to play a limiting role.

[0028] In use, four support rods 12 are provided at the base 2 of the sample pressing die, and they can be unfolded. The clamping block 16 is clamped into the lower bayonet opening 13 under the action of the spring 15 to lock the position of the support rod 12, which can increase the contact area between the base 2 of the sample pressing die and the tabletop. Cooperating with the rubber pad 17 on the bottom surface of the support rod 12, it can prevent sliding during the tablet pressing operation of the X-ray fluorescence powder. The provided limiting portion 21 can prevent the clamping block 16 from disengaging from the connecting groove 14.

[0029] A boss 8 is provided in the middle of the top of the base 2, and the boss 8 is clamped with the inner wall of the sample pressing cylinder 1 for tablet pressing. A feeding groove 19 is provided at the top of the inner wall of the sample pressing cylinder 1 for convenient feeding. A rubber sleeve 18 is fixedly sleeved in the middle of the sample pressing cylinder 1. Tooth teeth 20 are provided on the side wall of the upper pressing block 5 to improve anti-slip performance.

[0030] In use, the inclined feeding groove 19 is convenient for putting the X-ray fluorescence powder into the interior of the sample pressing cylinder 1. Along with the pressing down of the pressing rod 3 and cooperating with the boss 8, the powder can be extruded into flakes. The provided rubber sleeve 18 makes it not easy to slip when holding the sample pressing cylinder 1 by hand. The provided tooth teeth 20 make it not easy for the hand to slip when pushing and pulling the upper pressing block 5.

[0031] In specific use, for the structure of an X-ray fluorescence powder sample pressing die of the present utility model, first, the pressing cylinder 1 is clamped at the top of the base 2 through the cooperation of the positioning groove 6 and the positioning post 7. A certain amount of X-ray fluorescence powder is put into the pressing cylinder 1, and then a tungsten carbide gasket 4 is put in for separation. Then, another certain amount of X-ray fluorescence powder is continued to be put in, and the pressing rod 3 is inserted into the pressing cylinder 1 and sent to the pressing machine to press down the upper pressing block 5, so as to press the X-ray fluorescence powder inside the pressing cylinder 1 into two sheets, one on the top and one on the bottom. Then, the base 2 is removed and turned over, and the pressing cylinder 1 is clamped into the annular card slot 10. The pressing rod 3 is continuously pressed down, and the two sheet samples and the tungsten carbide gasket 4 inside the pressing cylinder 1 are extruded out into the demolding groove 9, completing the tablet pressing work of the X-ray fluorescence powder. By providing the demolding groove 9 under the base 2 of the pressing die, after pressing, only the base 2 needs to be turned over to demold the sheet sample, without the need to use an additional demolding device, and the operation is more convenient. Moreover, through the design of laying the tungsten carbide gasket 4, the pressing die can press two sheet samples at a time, and the tablet pressing efficiency of the X-ray fluorescence powder is high. By providing four support rods 12 at the base 2 of the pressing die, they can be unfolded, and the latch 16 is clamped into the lower bayonet 13 under the action of the spring 15 to lock the position of the support rod 12, which can increase the contact area between the base 2 of the pressing die and the tabletop. Cooperating with the rubber pad 17 on the bottom surface of the support rod 12, it is not easy to slide during the operation of pressing the X-ray fluorescence powder into tablets. By pressing the latch 16 and making it engage with the upper bayonet 13, the support rod 12 can be folded up, which is convenient for the storage and carrying of the pressing die.

[0032] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A die structure for pressing an X-ray fluorescence powder sample, comprising a sample pressing cylinder (1) and a base (2), characterized in that: At the top of the inner wall of the sample pressing cylinder (1), a pressing rod (3) is inserted. The top end of the pressing rod (3) is fixedly connected with an upper pressing block (5). Positioning grooves (6) are opened on the four side edges at the bottom end of the sample pressing cylinder (1). The inner walls of the four positioning grooves (6) are respectively engaged with positioning columns (7), and the four positioning columns (7) are respectively fixedly connected to the four side edges at the top end of the base (2). A demolding groove (9) is opened at the bottom end of the base (2), and an annular clamping groove (10) is opened at the bottom of the inner wall of the demolding groove (9). A tungsten carbide gasket (4) is placed inside the sample pressing cylinder (1). Connecting seats (11) are fixedly connected to the four side edges of the base (2). A support rod (12) is rotatably connected to the inner wall of the connecting seat (11). A rubber pad (17) is fixedly connected to the bottom end of the support rod (12). A connecting groove (14) is opened on the side wall of the support rod (12), and a spring (15) is fixedly connected to the inner wall of the connecting groove (14).

2. The structure of an X-ray fluorescence powder sample pressing die according to claim 1, characterized in that: One end of the spring (15) is fixedly connected with a clamping block (16). Clamping openings (13) are opened at the bottom and top of the connecting seat (11).

3. The structure of an X-ray fluorescence powder sample pressing die according to claim 1, wherein: A boss (8) is provided in the middle of the top end of the base (2), and the boss (8) is engaged with the inner wall of the sample pressing cylinder (1).

4. The structure of an X-ray fluorescence powder sample pressing die according to claim 2, characterized in that: The clamping block (16) is engaged with the inner wall of one of the clamping openings (13).

5. The structure of an X-ray fluorescence powder sample pressing die according to claim 1, characterized in that: A rubber sleeve (18) is fixedly sleeved in the middle of the sample pressing cylinder (1).

6. The structure of an X-ray fluorescence powder sample pressing die according to claim 1, wherein: A feeding groove (19) is opened at the top end of the inner wall of the sample pressing cylinder (1).

7. The structure of an X-ray fluorescence powder sample pressing die according to claim 1, characterized in that: Tooth teeth (20) are opened on the side wall of the upper pressing block (5).

8. The structure of an X-ray fluorescence powder sample pressing die according to claim 2, characterized in that: A limiting portion (21) is provided at one end of the clamping block (16).

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