CN203648846U - Test sieve - Google Patents
Test sieve Download PDFInfo
- Publication number
- CN203648846U CN203648846U CN201320841848.8U CN201320841848U CN203648846U CN 203648846 U CN203648846 U CN 203648846U CN 201320841848 U CN201320841848 U CN 201320841848U CN 203648846 U CN203648846 U CN 203648846U
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- Prior art keywords
- screen
- screen cloth
- frame
- steel ball
- supporting network
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Abstract
The utility model discloses a test sieve. The test sieve comprises a sieve frame, and a screen positioned in the sieve frame, wherein the screen is detachably connected with the sieve frame; a supporting net is additionally arranged at the bottom of the screen; a plurality of steel balls are arranged between the supporting net and the screen; the supporting net is a steel wire mesh whose grid diameter is 2-5 mm smaller than the diameter of each steel ball; an outlet is formed in one side of the sieve frame. After the structure is adopted, the steel balls can freely jump between the screen and the supporting net, and strike the bottom of the screen all the time so as to automatically clean the screen and prevent the mesh blockage of the screen; besides, the steel balls have the advantages of wear resistance, low noise and no harm to human bodies. In addition, the supporting net also can bear the weight of partial powder on the screen to prevent the deformation of the screen.
Description
Technical field
The utility model relates to a kind of particle powder verifying attachment, particularly a kind of test sieve.
Background technology
In particle powder, as feed, magnetic, zirconia powder etc., there is an important Index for examination, be that the grain diameter of powder is sieved, the production line that partial automation degree is high, is directly connected on finished product discharging opening by test sieve, after screening, then carry out package handling.But, existing test sieve, automatic cleaning net scarce capacity, used after a period of time, and because of reasons such as powder self water content are large or fine powder is many, the screen cloth of test sieve will be crammed, and screening efficiency is declined, and screening precision is not high,
The day for announcing is on May 6th, 2009, name is called No. 200820148448.8 Chinese utility model patent of " ultrasonic standard inspection sieve ", it is to be provided with supersonic generator near on the screen frame of screen cloth, and connect the ultrasonic wave controller outside sieve nest by wire, by the dither of ultrasonic wave controller control supersonic generator, peel off the absorption affinity between material particulate, and increase the vibration force of material on screen cloth.This test sieve can improve screening efficiency to a certain extent, but also brings new problem, because of the high frequency fast vibration of material, the part particle that makes particle powder is destroyed, and fine powder increases, and defective work increases, meanwhile, ultrasonic wave noise is large, large to operating personnel's actual bodily harm.
Utility model content
The technical problems to be solved in the utility model is for above-mentioned the deficiencies in the prior art, and provide a kind of can Automatic clearance screen cloth, prevent that screen cloth mesh from stopping up, screening efficiency high and to human body the test sieve without injury.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of test sieve, comprise screen frame and be placed in the screen cloth in screen frame, described screen cloth and screen frame are for removably connecting, described screen bottom is also provided with supporting network, between this supporting network and screen cloth, be provided with several steel balls, described supporting network be its grid diameter than the steel wire of the little 2-5mm of each steel ball size, described screen frame one side is provided with outlet.
Described steel ball is the chromium steel ball that hardness is greater than 55 degree.
Described screen frame comprises upper ledge and the lower frame of mutual clamping, and described screen cloth is fastened between upper ledge and lower frame, and stretches out from access section, and described supporting network is welded on lower frame bottom.
The utility model adopts after said structure, and above-mentioned steel ball can freely be beated between screen cloth and supporting network, does not stop impact screen bottom, thereby reaches Automatic clearance screen cloth, prevents the obstruction of screen cloth mesh, and while steel ball is wear-resistant, and noise is little, to human body without injury.In addition, supporting network also can be born the weight of powder on part screen cloth, prevents the distortion of screen cloth.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of test sieve of the utility model.
Wherein have: 1. screen frame; 2. screen cloth; 3. supporting network; 4. steel ball; 5. outlet; 6. grid.
Detailed description of the invention
Below in conjunction with accompanying drawing and concrete preferred embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of test sieve, comprises screen frame 1 and is placed in the screen cloth 2 in screen frame 1, screen frame 1 comprises upper ledge and the lower frame of mutual clamping, and described screen cloth 2 is fastened between upper ledge and lower frame, and stretches out from access section.Described screen cloth 2 bottoms are also provided with supporting network 3, and preferably supporting network 3 is welded on lower frame bottom; Between supporting network 3 and screen cloth 2, be provided with several steel balls 4, supporting network 3 be its grid 6 diameters than the steel wire of the little 2-5mm of each steel ball 4 diameter, supporting network 3 can be born the weight of powder on part screen cloth 2, prevent the distortion of screen cloth 2, in addition, steel wire itself is not yielding, does not need frequent replacing.Further, grid 6 diameters, than the little 2-5mm of each steel ball 4 diameter, can prevent from passing through grid 6 after steel ball 4 wearing and tearing on the one hand, on the other hand, do not affect flowing freely of particle powder.
Above-mentioned screen frame 1 one sides are provided with outlet 5, and this outlet 5 is preferably arranged on the screen frame 1 slightly biased upper/lower positions in middle part, in the time not affecting normal screening effect, can make to sieve the powder of rear acceptance or rejection, from then on export in 5 and flow out, thereby do not need sieve nest.
Described steel ball 4 is greater than the chromium steel ball of 55 degree for hardness, wear-resistant, does not need often to change steel ball.
Described screen cloth 2 also can prevent between the upper ledge and lower frame of screen frame 1, and upper ledge and lower frame are fixed by check bolt or other the mode that removably connects, thereby facilitates replacing and the cleaning of screen cloth 2.
When use, steel ball 4 can freely be beated between screen cloth 2 and supporting network 3, does not stop impact screen 2 bottoms, thereby reaches Automatic clearance screen cloth 2, prevents the obstruction of screen cloth 2 mesh, and simultaneously steel ball 4 is wear-resistant, and noise is little, to human body without injury.
Claims (3)
1. a test sieve, comprise screen frame and be placed in the screen cloth in screen frame, it is characterized in that: described screen cloth and screen frame are for removably connecting, described screen bottom is also provided with supporting network, between this supporting network and screen cloth, be provided with several steel balls, described supporting network be its grid diameter than the steel wire of the little 2-5mm of each steel ball size, described screen frame one side is provided with outlet.
2. test sieve according to claim 1, is characterized in that: described steel ball is the chromium steel ball that hardness is greater than 55 degree.
3. test sieve according to claim 1, is characterized in that: described screen frame comprises upper ledge and the lower frame of mutual clamping, and described screen cloth is fastened between upper ledge and lower frame, and stretches out from access section, and described supporting network is welded on lower frame bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320841848.8U CN203648846U (en) | 2013-12-20 | 2013-12-20 | Test sieve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320841848.8U CN203648846U (en) | 2013-12-20 | 2013-12-20 | Test sieve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203648846U true CN203648846U (en) | 2014-06-18 |
Family
ID=50915286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320841848.8U Expired - Fee Related CN203648846U (en) | 2013-12-20 | 2013-12-20 | Test sieve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203648846U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736658A (en) * | 2013-12-20 | 2014-04-23 | 吴江市震宇缝制设备有限公司 | Checking screen |
-
2013
- 2013-12-20 CN CN201320841848.8U patent/CN203648846U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736658A (en) * | 2013-12-20 | 2014-04-23 | 吴江市震宇缝制设备有限公司 | Checking screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20141220 |
|
| EXPY | Termination of patent right or utility model |