CN204566767U - Powder presser die - Google Patents
Powder presser die Download PDFInfo
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- CN204566767U CN204566767U CN201520205972.4U CN201520205972U CN204566767U CN 204566767 U CN204566767 U CN 204566767U CN 201520205972 U CN201520205972 U CN 201520205972U CN 204566767 U CN204566767 U CN 204566767U
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- Prior art keywords
- boss
- collet
- cavity
- height
- move back
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Abstract
Disclose a kind of powder presser die, comprising: compression leg; Collet, described collet comprises base plate and is positioned at the boss on base plate; Pad; Mold core, the through hole along the axis of described mold core is followed successively by upper cavity, middle die cavity and lower mode cavity from top to bottom; Described upper cavity mates with described compression leg; Described middle die cavity is truncated cone, is highly less than the height of described pad; Described lower mode cavity mates with the boss of described collet; Move back modular ring, along described in move back the through hole of modular ring axis the sheet passage that moves back mate with the boss of described collet, described in move back sheet passage height be greater than the height of the boss of described collet.Do not need mould to break into two with one's hands when moving back sheet according to powder presser die of the present utility model, improve compressing tablet efficiency and tablet quality.
Description
Technical field
The utility model relates to powder compacting field, is specifically related to a kind of powder presser die.
Background technology
The field such as pressed powder is widely used in preparation of target materials, prepared by pharmacy, x-ray fluorescence analysis, ceramic material.By powder presser die, material powder is pressed into fine and close sheet.
Existing powder presser die adopts and opens valve structure, when moving back sheet, is broken into two with one's hands by mould, takes out compressing tablet.The operating efficiency of this structure is low, and likely because staff's maloperation causes burn failure.In addition, when without interpolation adhesive, by existing powder presser die when suppressing target, success rate is lower, is generally 30%, and there is lateral fault slight crack.
Utility model content
According to powder presser die of the present utility model, introduce draft, when not adding adhesive, the success rate of compressing tablet brings up to more than 80%, and the sheet smooth surface suppressed almost does not have internal crack.
A kind of powder presser die, is characterized in that, comprising: compression leg; Collet, described collet comprises base plate and is positioned at the boss on base plate; Pad; Mold core, the through hole along the axis of described mold core is followed successively by upper cavity, middle die cavity and lower mode cavity from top to bottom; Described upper cavity mates with described compression leg; Described middle die cavity is truncated cone, is highly less than the height of described pad; Described lower mode cavity mates with the boss of described collet; Move back modular ring, along described in move back the through hole of modular ring axis the sheet passage that moves back mate with the boss of described collet, described in move back sheet passage height be greater than the height of the boss of described collet.
Preferably, the angle of the concentricity vertical line of bus of described middle die cavity is 3 degree to 5 degree.
Preferably, the bottom surface of described mold core is provided with the first bulge loop, described in move back modular ring top be provided with the second bulge loop, described first bulge loop mates with described second bulge loop.
Not needing when moving back sheet mould to break into two with one's hands according to powder presser die of the present utility model, improve compressing tablet efficiency and tablet quality.
Accompanying drawing explanation
By referring to the description of accompanying drawing to the utility model embodiment, above-mentioned and other objects, features and advantages of the present utility model will be more clear, in the accompanying drawings:
Fig. 1 a and 1b illustrates perspective view according to powder presser die of the present utility model and profile;
Fig. 2 a and 2b illustrates sectional view and the profile of mold core;
Fig. 3 a-3c illustrates the perspective view, sectional view and the profile that move back modular ring.
Detailed description of the invention
Based on embodiment, the utility model is described below, but the utility model is not restricted to these embodiments.Be all for illustrative purposes at this accompanying drawing provided, and accompanying drawing is not necessarily drawn in proportion.Unless the context clearly requires otherwise, similar words such as " comprising ", " comprising " otherwise in whole description and claims should be interpreted as the implication that comprises instead of exclusive or exhaustive implication; That is, be the implication of " including but not limited to ".
The utility model relates to a kind of powder presser die, and Fig. 1 a and 1b shows perspective view according to the embodiment of powder presser die of the present utility model and profile, shows line AA in fig 1 a, represents the interception position of the profile shown in Fig. 1 b.This powder presser die comprises: compression leg 100, mold core 200, collet 400, pad 800 and move back modular ring 500.
The columniform boss 402 that collet 400 comprises base plate 401 and is positioned on base plate.Preferably, base plate 401 and boss 402 form as one.
Fig. 2 a and 2b shows sectional view and the profile of mold core.Mold core 200 is such as cylindric, and comprise outer wall 204 and the through hole along axis, this through hole is as mold cavity.Mold cavity is followed successively by upper cavity 201, middle die cavity 202 and lower mode cavity 203 from top to bottom.Preferably, the capable one-tenth of mold core 200 integrally casting.
Upper cavity 201 is cylindrical, the diameter d of upper cavity 201
1equal the basal diameter D of compression leg 100
100.In tableting processes, upper cavity 201 is the up-downgoing passage of compression leg 100.
Middle die cavity 202 is truncated cone, and the end face diameter of middle die cavity 202 equals the diameter of upper cavity 201, is also the basal diameter D of compression leg 100
100.The angle α of the concentricity vertical line of bus of middle die cavity 202 is 3 degree to 5 degree.The basal diameter of middle die cavity 202 is less than the diameter D of boss 402
402.The height d of middle die cavity 202
5be less than the height h of pad 800
800.
Lower mode cavity 203 is cylindrical, the diameter d of lower mode cavity 203
6equal the diameter D of boss 402
402, highly equal the height h of boss 402
402.
The bottom of outer wall 204 is bulge loop 2041 around lower mode cavity 203, and the external diameter of bulge loop 2041 is d
3, the height of bulge loop 2041 is d
4.
Pad 800 is cylindrical, the diameter D of pad 800
800equal the diameter D of compression leg 100
100, the height h of pad 800
800in ratio, the height of die cavity 202 is large.In a preferred embodiment, the height h of pad 800
800the large 1-3 millimeter of the height of die cavity 202 in ratio.
Fig. 3 a-3c illustrates the perspective view, sectional view and the profile that move back modular ring.Move back modular ring 500 such as cylindric, comprise outer wall 501 and move back sheet passage 502 along the through hole of axis with what provide compressing tablet finished product.This moves back the diameter d of sheet passage 502
7equal the diameter D of boss 402
402, be also the diameter of lower mode cavity 203.Move back the length d of sheet passage 502
11be greater than the height h of boss 402
402.
Have a bulge loop 503 in the top outermost edge of the outer wall 501 moving back modular ring 500, the width of bulge loop 503 is d
9, be highly d
10.The outer wall 501 therefore with bulge loop 503 has crossed groove 504.Move back the height d of the bulge loop 503 of modular ring 500
10the height equaling the bulge loop 2041 of mold core 200 is d
4.The diameter of groove 504 is also the internal diameter d of bulge loop 503
8equal the outside diameter d of the bulge loop 2041 of mold core 200
3.Therefore groove 504 is inserted in the bottom of mold core 200 can make mold core 200 and move back modular ring 500 close contact.
In sheeting operation, first, be arranged on by mold core 200 on collet 400, namely boss 402 inserts in lower mode cavity 203, and the two size coupling forms close contact.Second step, puts into the top of pad 800 from mold core 200, because the height of pad 800 is greater than the height of middle die cavity 202, the major part of pad 800 is arranged in die cavity 202, and remaining part is positioned at the bottom of upper cavity 201.3rd step, adds material powder from the top of mold core 200.4th step, inserts upper cavity 201 by compression leg 100, and the two is formed and coordinates contact.Compression leg 100 contacts the material powder in upper cavity 201.By repeatedly sheeting operation, material powder is pressed into fine and close target.
The basal diameter of compression leg 100 and the diameter of upper cavity 201 define the diameter of compressing tablet finished product.The amount of material powder and compressing tablet pressure define the height of compressing tablet finished product.
Moving back in modulo operation, taking off from collet 400 from mold core 200.Then, modular ring 500 will be moved back to be arranged on collet 400.Being arranged on by mold core 200 moves back on modular ring 500, is pressurizeed by compression leg 100, compressing tablet finished product is moved, comes off from upper cavity 201, further break away from moulds core 200.Can reduce to move back in sheet process by adding draft (i.e. the angle α of the concentricity vertical line of bus of middle die cavity 202), the shearing stress of compressing tablet finished product inside, improves the success rate of pressed powder.In addition, do not add adhesive, eliminate the impact of adhesive on compressing tablet finished product.
In a preferred embodiment, the basal diameter D of compression leg 100
100it is 25 millimeters.The diameter D of pad 800
800be 25 millimeters, height h
800it is 6 millimeters.In collet 400, the diameter D of base plate 401
401it is 50 millimeters; The diameter D of boss 402
402be 30 millimeters, height h
402it is 8 millimeters.
The diameter d of upper cavity 201
1being 25 millimeters, is highly 22 millimeters.The end face diameter of middle die cavity 202 is 25 millimeters, and the angle of bus is concentricity vertical line is α is 4 degree, height d
5it is 5 millimeters.The diameter d of lower mode cavity 203
6being 30 millimeters, is highly 8 millimeters.The outside diameter d of bulge loop 2041
3be 45 millimeters, the height d of bulge loop 2041
4it is 1 millimeter.
Move back the diameter d of moving back sheet passage 502 of modular ring 500
7be 30 millimeters, length d
11it is 15 millimeters.The height d of bulge loop 503
10be 1 millimeter, internal diameter d
8be 45 millimeters, width d
9it is 2.5 millimeters.
By suppressing LaCeCuO according to powder presser die of the present utility model
4target, compressing tablet success rate brings up to more than 80%, and the sheet surface-brightening of extrusion does not almost have internal crack, and the small pieces of extrusion easily cannot be broken disconnected with have gentle hands.
The compressing tablet pressure of No. 1 target is the quality 10.02g of 20MPa, No. 1 target, and before sintering, thickness is 4.5 millimeters, and be 4.4 millimeters after sintering, throw not damaged at 50 cm heights, sand papering rear surface is more smooth, without internal injury.
The compressing tablet pressure of No. 2 targets is the quality 9.95g of 25MPa, No. 2 targets, and before sintering, thickness is 4.3 millimeters, and be 4.28 millimeters after sintering, throw not damaged at 50 cm heights, sand papering rear surface is more smooth, without internal injury.
The compressing tablet pressure of No. 3 targets is the quality 9.94g of 30MPa, No. 3 targets, and before sintering, thickness is 4.2 millimeters, and be 4.18 millimeters after sintering, throw not damaged at 50 cm heights, sand papering rear surface is more smooth, without internal injury.
The compressing tablet pressure of No. 4 targets is the quality 9.94g of 35MPa, No. 4 targets, and before sintering, thickness is 4.2 millimeters, and be 4.12 millimeters after sintering, throw not damaged at 50 cm heights, sand papering rear surface is more smooth, without obvious internal injury.
The compressing tablet pressure of No. 5 targets is the quality 9.95g of 40MPa, No. 5 targets, and before sintering, thickness is 4.2 millimeters, and be 4.08 millimeters after sintering, throw not damaged at 50 cm heights, sand papering rear surface is more smooth, without obvious internal injury.
According to powder presser die of the present utility model, introduce draft, when not adding adhesive, the success rate of compressing tablet brings up to more than 80%, and the sheet smooth surface suppressed almost does not have internal crack.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, to those skilled in the art, the utility model can have various change and change.All do within spirit of the present utility model and principle any amendment, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. a powder presser die, is characterized in that, comprising:
Compression leg;
Collet, described collet comprises base plate and is positioned at the boss on base plate;
Pad;
Mold core, the through hole along the axis of described mold core is followed successively by upper cavity, middle die cavity and lower mode cavity from top to bottom;
Described upper cavity mates with described compression leg;
Described middle die cavity is truncated cone, is highly less than the height of described pad;
Described lower mode cavity mates with the boss of described collet;
Move back modular ring, along described in move back the through hole of modular ring axis the sheet passage that moves back mate with the boss of described collet, described in move back sheet passage height be greater than the height of the boss of described collet.
2. powder presser die according to claim 1, is characterized in that, the angle of the concentricity vertical line of bus of described middle die cavity is 3 degree to 5 degree.
3. powder presser die according to claim 1, is characterized in that, the bottom surface of described mold core is provided with the first bulge loop, described in move back modular ring top be provided with the second bulge loop, described first bulge loop mates with described second bulge loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520205972.4U CN204566767U (en) | 2015-04-07 | 2015-04-07 | Powder presser die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520205972.4U CN204566767U (en) | 2015-04-07 | 2015-04-07 | Powder presser die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204566767U true CN204566767U (en) | 2015-08-19 |
Family
ID=53859453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520205972.4U Active CN204566767U (en) | 2015-04-07 | 2015-04-07 | Powder presser die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204566767U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107379619A (en) * | 2017-07-25 | 2017-11-24 | 北京理工大学 | A kind of powder presser die and tabletting method for being easy to move back mould |
| CN116023127A (en) * | 2022-12-28 | 2023-04-28 | 松山湖材料实验室 | YBCO target manufacturing method and target mold |
-
2015
- 2015-04-07 CN CN201520205972.4U patent/CN204566767U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107379619A (en) * | 2017-07-25 | 2017-11-24 | 北京理工大学 | A kind of powder presser die and tabletting method for being easy to move back mould |
| CN116023127A (en) * | 2022-12-28 | 2023-04-28 | 松山湖材料实验室 | YBCO target manufacturing method and target mold |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |