CN102950046B - Grinding device and method for powder metallurgy - Google Patents
Grinding device and method for powder metallurgy Download PDFInfo
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- CN102950046B CN102950046B CN201210303742.2A CN201210303742A CN102950046B CN 102950046 B CN102950046 B CN 102950046B CN 201210303742 A CN201210303742 A CN 201210303742A CN 102950046 B CN102950046 B CN 102950046B
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- roll
- feed bin
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- mixing roll
- powder metallurgy
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Abstract
A grinding device for powder metallurgy comprises a storage bin, an extruding device and a stirring device, wherein the storage bin is used for containing metallurgic powder, the extruding device is arranged in the storage bin and used for rolling the metallurgic powder, the stirring device is arranged in the storage bin and used for stirring the metallurgic powder, and a vertical extruding device for flaking the metallurgic powder is arranged in a horizontal type and is combined with the stirring device, so that the occupied space is reduced; and moreover, once feeding can be realized, repeated rolling is carried out for formation, so that the structure of the device is simplified, and the flaking rate is increased.
Description
Technical field
The present invention relates to a kind of lapping device and method, especially a kind of for the lapping device in powder metallurgy and Ginding process thereof.
Background technology
Powder metallurgy be produce metal or with metal dust as raw material, through being shaped and sintering, manufacture metal material, compound and all kinds goods, be widely used in the industry such as machine tool and five metals grinding tool, when conducting powder powder metallurgical products is shaping, need flakelike powder to be raw material, produce in the device of flakelike powder existing, the pressing process such as general employing roll-type, air-cooled, rotation, form certain grinding pressure by the roll body rotated, make flakelike powder.But this kind of flakelike powder lapping device complex structure, operation is many, and efficiency is low, and power consumption is large, and cost is high, and floor space is large, and disposable input is comparatively large, thus causes cost high.
Summary of the invention
In order to overcome above-mentioned technical disadvantages, the object of this invention is to provide a kind of for the lapping device in powder metallurgy and Ginding process thereof, therefore having simplified the structure of device, improve rate in blocks.
For achieving the above object, the technical scheme that the present invention takes is:
For the lapping device in powder metallurgy, include the feed bin for holding metallurgical powder, be arranged in feed bin and for roll extrusion metallurgical powder pressurizing unit, be arranged in feed bin and agitating device for stirring metallurgical powder.
Further, described agitating device comprises the central shaft be connected with power set, is evenly distributed with at least two blades in central shaft feeding bin, and adjacent blades and feed bin are formed and grind storehouse, is provided with a roll device in described each grinding storehouse.
Further, described roll device bleeds off pressure the anti-drop device being provided with and preventing roll device from departing from.
Further, described roll device is a mixing roll; Described anti-drop device is annular pressing plate, and annular pressing plate is fixed on blade, and the radial distance of pressing plate outermost end and feed bin is less than mixing roll diameter.
Further, described blade is planar, and planar blade is perpendicular to the plane at agitating device direction of motion place.
Further, described blade is bending arcuate structure near one end of feed bin outer surface, and each bending blade is towards identical.
Further, agitating device is set to blade, pressurizing unit is set to include mixing roll, stationary roll and pressing plate, feed bin is provided with columniform inner chamber body, the center line of stationary roll is set to overlap with the center line of the inner chamber body of feed bin, mixing roll be set at least three and be set to be evenly distributed on the central point of stationary roll for the center of circle circumferentially, mixing roll is placed through turning cylinder and connects with feed bin, the top end face that pressing plate is arranged on mixing roll is set to connect with mixing roll contact, the center line of blade is set to overlap with the center line of the inner chamber body of feed bin, blade is set at least three and is set to and pressing plate grafting, blade is placed through line shaft and connects with frequency control motor.
Further, the periphery of described stationary roll and the radial distance of feed bin inner circumferential are less than the diameter that mixing roll diameter adds the non-grinding material of twice; Described blade and mixing roll periphery are provided with lapping tape.
A kind of Ginding process of above-mentioned lapping device:
Non-grinding material is put in feed bin, feed bin upper end cover upper cover;
Start power set, rotate, rotation direction is the concave surface convex surface facing adjacent blades of blade;
Adjusting rotary speed, grinding;
Grinding a period of time, stop.
A kind of Ginding process of above-mentioned lapping device;
Non-grinding material is put in feed bin, feed bin upper end cover upper cover;
Start power set, rotate, rotate the concave surface convex surface facing adjacent blades that positive direction is blade, adopt rotating alternately grinding, milling time of wherein reversing is less than rotating forward milling time;
Grinding a period of time, stop.
The present invention includes feed bin, during use, metallurgical powder is poured in feed bin, under the effect of agitating device, metallurgical powder sheet repeatedly rolls in pressurizing unit, owing to devising feed bin, pressurizing unit and agitating device, the vertical extrusion device for metallurgical powder shape in blocks, be set to horizontal, and combine with agitating device, decrease and take up room, simultaneously, can realize once feeding intake, repeatedly roll shaping, therefore simplified the structure of device, improve rate in blocks.
Described agitating device comprises blade, and feed bin is separated into grinding storehouse by adjacent blades, and grinding is provided with pressurizing unit in storehouse, and realize subregion grinding, abrasive areas diminishes, and Mei Chu space, each grinding storehouse is fully polished, and grinding effect is improved.
In process of lapping, feed bin High Rotation Speed, pressurizing unit constantly rocks in grinding storehouse, pressurizing unit is likely thrown out of feed bin or grinding extruding force diminishes, thus there is potential safety hazard or reduce grinding effect, and after installing anti-drop device, under the restriction of anti-drop device, pressurizing unit is limited in grinding storehouse firmly, thus eliminates potential safety hazard on the basis ensureing grinding effect.
Described pressurizing unit adopts mixing roll, and mixing roll is common roll body, such as columned roll body, and it can be freely movable, forms the dynamic foundation of grinding, have the advantage that structure is simple, grinding effect is good.
Blade is planar blade, and perpendicular to the plane at agitating device place, in process of lapping, the abradant surface of mixing roll can be that face contacts with blade like this, adds milling area, thus improves the effect of grinding.
Blade outer end is bending arcuate structure, each bending blade towards and bending curvature identical, in spin finishing process, direction of rotation is the concave surface convex surface facing adjacent blades of blade, and such crowning contacts with mixing roll and grinds, and a kind of outside thrust convexed to form mixing roll or knockout press, coordinate the change of rotary speed, make mixing roll do circumferential movement, thus form a kind of stir mixing effect, and enhancing grinding effect, grinding is evenly.
The periphery of described stationary roll and the radial distance of feed bin inner circumferential are less than the diameter that mixing roll diameter adds the non-grinding material of twice, like this can fully fine grinding, improve grinding effect.
Described blade and mixing roll periphery are provided with lapping tape, and described lapping tape refers to that abradant surface is provided with the uniform concavo-convex bar in interval.
Beneficial effect of the present invention is: grinding arc plate under the influence of centrifugal force, promotion activity abrading block rotates in feed bin, the metallurgical powder of certain particle size is contacted with feed bin inwall, feed bin base plate with movable abrading block, movable abrading block repeatedly by rotating curved plate, and be squeezed into flakelike powder, rate in blocks is high.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Detailed description of the invention
Accompanying drawing 1 is one embodiment of the present of invention, illustrates the present embodiment by reference to the accompanying drawings, includes feed bin 1, mixing roll 2, stationary roll 3, blade 4 and pressing plate 5.
Wherein, feed bin 1 is the cylindrical structural of upper end open, its central hub place is provided with rotating shaft, rotating shaft is coaxial with it is outward provided with stationary roll 3, described stationary roll 3 is also column structure, it can be hollow or solid construction, preferred solid construction, it is inner that stationary roll 3 is positioned at feed bin 1, the upper surface of the bottom surface of stationary roll 3 lower surface and feed bin 1 is coplanar, upper surface is fixed with blade 4, described blade 4 is with the central hub annular array of feed bin, and quantity can be selected as required, and the present embodiment selects 3 blades 4.
Described blade 4 is planar structure, and it is perpendicular to the plane at blade 4 rotation direction place; The bottom surface of blade 4 is close to feed bin 1 but does not contact; The end of the part of blade 4 between stationary roll 3 and feed bin 1 is warp architecture, 3 blade 4 crooked positions, bending towards and bending dynamics identical; The blade 4 of bending position defines convex surface and concave surface, and the outer wall of adjacent blades 4 and feed bin 1 inwall, stationary roll 3 forms grinding storehouse, is the concave surface convex surface facing adjacent blades of blade 4 in each grinding storehouse; Grinding is provided with mixing roll 2 in storehouse, and described mixing roll 2 is column structure, and it can be hollow or solid construction, preferred solid construction.
The upper end of blade 4 has been installed with pressing plate 5, and described pressing plate 5 is annular pressing plate, and pressing plate 5 is less than the diameter of mixing roll 2 with the radial distance of stationary roll 3 outer wall, pressing plate 5 and feed bin 1 inwall, ensures that mixing roll 2 can not detach grinding storehouse.Blade 4 is placed through line shaft and connects with frequency control motor.
In the present embodiment, the bottom face of feed bin 1 is provided with discharging opening.
During grinding, metallurgical powder is poured in feed bin 1, and blade 4 rotates, and rotation direction is the concave surface convex surface facing adjacent blades of blade 4, this direction is defined as rotating forward, in process of lapping, can control power set and carry out the change of rotating speed or reverse, the time of reversion is less than the rotating forward time, realization stirs, realize mixing roll 2 and form a kind of stir mixing effect in grinding storehouse, and enhance grinding effect, grinding evenly.
The present embodiment, through overtesting, is applicable to Mohs' hardness and is not more than 7 grades, and humidity is not more than the explosive flakelike powder grinding of the non-flammable of 6 below ﹪, and product grading is just within the scope of 80 ~ 325 orders, and its effect in blocks is best.
The present invention has lower feature:
1, owing to devising feed bin 1, pressurizing unit and agitating device, for the vertical extrusion device for metallurgical powder shape in blocks, be set to horizontal, and combine with agitating device, decrease and take up room, simultaneously, can realize once feeding intake, repeatedly roll shaping, therefore simplified the structure of device, improve rate in blocks.
2, owing to devising mixing roll 2, stationary roll 3 and pressing plate 5, do not need to arrange power set to mixing roll 2 again, simplify apparatus structure, serve roll extrusion effect between pressing plate 5 and mixing roll 2 simultaneously yet.
For in the lapping device technical field in powder metallurgy; Everyly include feed bin 1 for holding metallurgical powder, be arranged in feed bin 1 and for roll extrusion metallurgical powder pressurizing unit, be arranged in feed bin 1 and agitating device for stirring metallurgical powder, the center line of the roll of pressurizing unit is set to the technology contents of the line shaft centerline parallel of agitating device all in protection scope of the present invention.
Claims (7)
1. one kind for the lapping device in powder metallurgy, it is characterized in that: include the feed bin (1) for holding metallurgical powder, to be arranged in feed bin (1) and for the pressurizing unit of roll extrusion metallurgical powder, to be arranged in feed bin (1) and agitating device for stirring metallurgical powder, agitating device is set to blade (4), pressurizing unit is set to include mixing roll (2), stationary roll (3) and pressing plate (5), feed bin (1) is provided with columniform inner chamber body, the center line of stationary roll (3) is set to overlap with the center line of the inner chamber body of feed bin (1), mixing roll (2) be set at least three and be set to be evenly distributed on the central point of stationary roll (3) be the center of circle circumferentially, mixing roll (2) is placed through turning cylinder and connects with feed bin (1), the top end face that pressing plate (5) is arranged on mixing roll (2) is set to connect with mixing roll (2) contact, the center line of blade (4) is set to overlap with the center line of the inner chamber body of feed bin (1), blade (4) is set at least three and is set to and pressing plate (5) grafting, blade (4) is placed through line shaft and connects with frequency control motor.
2. according to described in claim 1 for the lapping device in powder metallurgy, it is characterized in that: described agitating device comprises the central shaft be connected with power set, at least two blades (4) are evenly distributed with in central shaft feeding bin, adjacent blades (4) and feed bin are formed and grind storehouse, are provided with a roll device in described each grinding storehouse.
3. according to claim 1 or 2 for the lapping device in powder metallurgy, it is characterized in that: described roll device bleeds off pressure the anti-drop device being provided with and preventing roll device from departing from.
4. according to described in claim 3 for the lapping device in powder metallurgy, it is characterized in that: described roll device is a mixing roll (2); Described anti-drop device is annular pressing plate (5), and annular pressing plate (5) is fixed on blade (4), and the radial distance of pressing plate (5) outermost end and feed bin is less than mixing roll (2) diameter.
5. according to claim 2 for the lapping device in powder metallurgy, it is characterized in that: described blade (4) is planar, and planar blade (4) is perpendicular to the plane at agitating device direction of motion place.
6. according to claim 2 or 5 for the lapping device in powder metallurgy, it is characterized in that: described blade (4) is bending arcuate structure near one end of feed bin outer surface, and each blade (4) is bending towards identical.
7. according to described in claim 1 for the lapping device in powder metallurgy, it is characterized in that: the periphery of described stationary roll (3) and the radial distance of feed bin inner circumferential are less than the diameter that mixing roll (2) diameter adds the non-grinding material of twice; Described blade and mixing roll (2) periphery are provided with lapping tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210303742.2A CN102950046B (en) | 2012-08-24 | 2012-08-24 | Grinding device and method for powder metallurgy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210303742.2A CN102950046B (en) | 2012-08-24 | 2012-08-24 | Grinding device and method for powder metallurgy |
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| Publication Number | Publication Date |
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| CN102950046A CN102950046A (en) | 2013-03-06 |
| CN102950046B true CN102950046B (en) | 2015-01-21 |
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| CN201210303742.2A Expired - Fee Related CN102950046B (en) | 2012-08-24 | 2012-08-24 | Grinding device and method for powder metallurgy |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103418797B (en) * | 2013-06-19 | 2016-12-28 | 镇江宝纳电磁新材料有限公司 | The rolling device of flaky metal powder |
| CN104549686A (en) * | 2014-11-27 | 2015-04-29 | 太仓圣广仁自动化设备有限公司 | Plastic mill |
| CN107185683B (en) * | 2017-06-19 | 2023-02-03 | 陈启兴 | Self-cooled efficient pulverizer |
| CN107930490A (en) * | 2017-11-29 | 2018-04-20 | 徐意迪 | A kind of agitating device of powder metallurgy |
| CN108032436B (en) * | 2017-11-30 | 2019-08-13 | 宁波江北森壹机械制造有限公司 | Mortar mixer |
| CN108015899B (en) * | 2017-11-30 | 2019-06-07 | 宁波江北森壹机械制造有限公司 | Mortar processing method |
| CN107962063A (en) * | 2017-12-22 | 2018-04-27 | 湖南望隆企业管理咨询有限公司 | A kind of medical waste refinement removes wet processing range |
| CN108421983A (en) * | 2018-05-29 | 2018-08-21 | 曲源 | The method for preparing the device of Metal Flake powder and preparing Metal Flake powder using the device |
| CN113563920A (en) * | 2021-05-27 | 2021-10-29 | 濮阳市万良石油科技发展有限公司 | Stabilizer and preparation method thereof |
| CN115945265B (en) * | 2023-03-08 | 2023-05-09 | 广东睿智环保科技股份有限公司 | Grinding equipment and grinding method for high-content metal powder coating |
| CN116510870A (en) * | 2023-05-24 | 2023-08-01 | 佛山市三水荣兴新型材料有限公司 | Vertical slag grinder and grinding process thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202803305U (en) * | 2012-08-24 | 2013-03-20 | 莱芜市金石特种合金材料有限公司 | Grinding device for powder metallurgy |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202803305U (en) * | 2012-08-24 | 2013-03-20 | 莱芜市金石特种合金材料有限公司 | Grinding device for powder metallurgy |
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Granted publication date: 20150121 Termination date: 20180824 |