CN203936030U - Powder material sieving machine - Google Patents
Powder material sieving machine Download PDFInfo
- Publication number
- CN203936030U CN203936030U CN201420270324.2U CN201420270324U CN203936030U CN 203936030 U CN203936030 U CN 203936030U CN 201420270324 U CN201420270324 U CN 201420270324U CN 203936030 U CN203936030 U CN 203936030U
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- powder
- assignment block
- screen frame
- housing
- feed pipe
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Abstract
The utility model discloses a kind of powder material sieving machine, it comprises housing, screen frame, feed pipe, powder collecting box, rotating shaft and driving mechanism; The bottom of screen frame is provided with screen cloth, rotating shaft is passed the two relative side of screen frame and is fixed with screen frame, and screen frame is fixed in housing by rotating shaft, and feed pipe is positioned at the top of housing, powder collecting box is positioned at the bottom of housing, and driving mechanism connection rotating shaft also drives screen frame to do swing repeatedly; Between feed pipe and screen frame, be also provided with for receiving from the powder of feed pipe and for leak the assignment block of material to screen cloth, assignment block is fixed in housing.The utility model powder material sieving machine, by assignment block is set, has been controlled the speed that powder enters sieve nest, has avoided powder to be sieved to be directly deposited on sieve nest and has caused large-area screen cloth to stop up; By the small opening of design assignment block, can realize powder to be sieved and be distributed in equably on screen cloth, greatly improve sifting efficiency; And assignment block also has cushioning effect, improve the life-span of sieve nest.
Description
Technical field
The utility model relates to a kind of for sieving the device of powder, relates in particular to a kind of for sieving the powder material sieving machine of the powder such as polytetrafluoroethylene (PTFE).
Background technology
It is mainly to adopt to push moulding process that existing polytetrafluoroethylene (PTFE) pipe fitting is produced, the step such as need batch mixing, precompressed, push.Before batch mixing, to the polytetrafluoroethylene powder processing of sieving, screen the wherein polytetrafluoroethylpowder powder below certain fineness.Therefore, powder material sieving machine is one of visual plant of producing polyfluortetraethylene pipe.The sieve nest sifting efficiency of powder material sieving machine depends on the stopping state of screen cloth to a great extent; If screen cloth stops up, be difficult to improve screen effect.
Utility model content
The purpose of this utility model is to overcome the defect existing in prior art, provides a kind of and can effectively overcome the screening powder powder material sieving machine that screen cloth stops up.
The discovery of this department, the obstruction of sieve nest upper screen cloth is excessive relevant with sieve nest heap powder-deposit weight.The weight that reduces to pile on sieve nest powder-deposit can reduce the stopping state of screen cloth effectively.
For this reason, the technical solution of the utility model is a kind of powder material sieving machine, and it comprises housing, screen frame, feed pipe, powder collecting box, rotating shaft and driving mechanism; The bottom of screen frame is provided with screen cloth, rotating shaft is passed the two relative side of screen frame and is fixed with screen frame, and screen frame is fixed in housing by rotating shaft, and feed pipe is positioned at the top of housing, powder collecting box is positioned at the bottom of housing, and driving mechanism connection rotating shaft also drives screen frame to do swing repeatedly; Between feed pipe and screen frame, be also provided with for receiving from the powder of feed pipe and for leak the assignment block of material to screen cloth, assignment block is fixed in housing.
Preferably, described assignment block is the framework that bottom surface is distributed with small opening; For being applicable to the screening of polytetrafluorethylepowder powder, the diameter dimension of described small opening is 1 ~ 3mm.Small opening oversize, leaks material too fast, suppresses the effect that screen cloth stops up not ideal enough, and too small screening efficiency is too low.
In order to improve screening efficiency, preferably, described small opening is evenly distributed on the bottom surface of described assignment block.Sieve nest can evenly receive powder to be sieved like this, improves sifting efficiency.
The inner bottom surface of best described assignment block is the structure that center is high, both sides are low, described feed pipe be positioned in the middle of assignment block directly over.Like this after feed pipe enters assignment block, powder can mind-set surrounding move under Action of Gravity Field from the inner bottom surface of assignment block, be distributed in rapidly on the inner bottom surface of assignment block, and then can be more evenly dispersed on screen cloth along the small opening of assignment block, thereby improve sifting efficiency.In addition, after adopting the assignment block of this structure, can also reduce the diameter of feed pipe, without adopting large feed pipe to carry out charging, avoid inlet amount shakiness in large feed tube diameter situation easily to damage the even phenomenon of screen cloth of assignment block by pressure, reduced the requirement to assignment block intensity.
The inner bottom surface of best described assignment block is the conical surface, and the powder to be sieved that enters assignment block from feed pipe like this can more be evenly distributed in the inner bottom surface of assignment block and then be evenly distributed in screen cloth.
Preferably, described housing is cylindrical, and described screen cloth is circular, and the inner bottom surface of assignment block is taper seat; The center of screen cloth, housing and assignment block bottom surface is on a vertical curve.Screen cloth can more stably be accepted the material from assignment block like this, and the structure of powder sieving machine is also more compact.
Advantage of the present utility model and beneficial effect are: the utility model powder material sieving machine, by assignment block is set, has been controlled the speed that powder enters sieve nest, have avoided powder to be sieved to be directly deposited on sieve nest and have caused large-area screen cloth to stop up; By the small opening of design assignment block, can realize powder to be sieved and be distributed on screen cloth equably, thereby greatly improve sifting efficiency; In this simultaneously, by the cushioning effect of assignment block, overcome powder to be sieved and directly entered from feed pipe the enormous impact that sieve nest produces sieve nest, alleviated the burden of sieve nest, the life-span of having improved sieve nest.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the utility model powder material sieving machine;
Fig. 2 is the another kind of structural representation of the utility model powder material sieving machine.
In figure: 1, housing; 2, screen frame; 3, feed pipe; 4, powder collecting box; 5, rotating shaft; 6, driving mechanism; 7, assignment block; 21, screen cloth; 61, semicircle projection; 62, cam; 71, small opening.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is further described.Following examples are only for the technical solution of the utility model is more clearly described, and can not limit protection domain of the present utility model with this.
The utility model is a kind of powder material sieving machine, and as shown in Figure 1, it comprises housing 1, screen frame 2, feed pipe 3, powder collecting box 4, rotating shaft 5 and driving mechanism 6; The bottom of screen frame 2 is provided with screen cloth 21, rotating shaft 5 is passed the two relative side of screen frame 2 and fixes with screen frame 2, screen frame 2 is fixed in housing 1 by rotating shaft 5, feed pipe 3 is positioned at the top of housing 1, powder collecting box 4 is positioned at the bottom of housing 1, and driving mechanism 6 connection rotating shafts 5 also drive screen frame 2 to do swing repeatedly; Between feed pipe 3 and screen frame 2, be also provided with for receiving from the powder of feed pipe 3 assignment block 7 for leaking material to sieve nest 21, assignment block 7 is fixed in housing 1.Assignment block 7 is evenly distributed with the framework of small opening 71 for bottom surface; For being applicable to the screening of polytetrafluorethylepowder powder, the diameter dimension of small opening 71 is preferably 1 ~ 3mm.Small opening 71 oversize, leaks material too fast, suppresses the effect that screen cloth 21 stops up not ideal enough, and too small screening efficiency is too low.
As improvement, the inner bottom surface of assignment block 7 is preferably the structure that center is high, both sides are low, if the inner bottom surface of assignment block 7 is the conical surface, feed pipe 3 be positioned in the middle of assignment block 7 directly over.Like this after feed pipe 3 enters assignment block 7, powder can mind-set surrounding move under Action of Gravity Field from the inner bottom surface of assignment block 7, be distributed in rapidly on the inner bottom surface of assignment block 7, and then can more be evenly dispersed on screen cloth 21 along the small opening of assignment block 7 71, improve sifting efficiency, avoided powder to be sieved to be deposited in certain on screen cloth 21 and cause local obstruction.As shown in Figure 2, housing 1 is cylindrical, and screen cloth 21 is circular, and the inner bottom surface of assignment block 7 is taper seat; The center of screen cloth 21, housing 1 and assignment block 7 bottom surfaces is on a vertical curve.Can conveniently remove like this sieve nest, assignment block etc. to clean, structure is also more compact.
In addition, driving mechanism 6 can adopt common reciprocally swinging driving mechanism, such as can comprise be arranged at screen frame 2 two ends semicircle projection 61, rotate and be arranged at the motor that cam 62 on housing 1 and driving cam 62 rotate, cam 62 is positioned at the below of screen frame 2 corresponding with semicircle projection 61, and the angle of the semicircle projection 61 at screen frame 2 two ends differs 180 degree.Driven by motor cam 62 rotates, and the cam 62 of screen frame 2 one end contacts with semicircle projection 61, and the cam 62 of screen frame 2 other ends does not contact with semicircle projection 61 simultaneously, thereby one end of screen frame 2 is lifted, and the other end falls, and realizes the reciprocally swinging of screen frame 2.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. a powder material sieving machine, is characterized in that: comprise housing, screen frame, feed pipe, powder collecting box, rotating shaft and driving mechanism; The bottom of screen frame is provided with screen cloth, rotating shaft is passed the two relative side of screen frame and is fixed with screen frame, and screen frame is fixed in housing by rotating shaft, and feed pipe is positioned at the top of housing, powder collecting box is positioned at the bottom of housing, and driving mechanism connection rotating shaft also drives screen frame to do swing repeatedly; Between feed pipe and screen frame, be also provided with for receiving from the powder of feed pipe and for leak the assignment block of material to screen cloth, assignment block is fixed in housing.
2. powder material sieving machine as claimed in claim 1, is characterized in that: described assignment block is the framework that bottom surface is distributed with small opening, and the diameter dimension of described small opening is 1 ~ 3mm.
3. powder material sieving machine as claimed in claim 2, is characterized in that: described small opening is evenly distributed on the bottom surface of described assignment block.
4. powder material sieving machine as claimed in claim 3, is characterized in that: the inner bottom surface of described assignment block is the structure that center is high, both sides are low, described feed pipe be positioned in the middle of assignment block directly over.
5. powder material sieving machine as claimed in claim 4, is characterized in that: the inner bottom surface of described assignment block is the conical surface.
6. powder material sieving machine as claimed in claim 5, is characterized in that: described housing is cylindrical, and described screen cloth is circular, and the inner bottom surface of assignment block is taper seat; The center of screen cloth, housing and assignment block bottom surface is on a vertical curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420270324.2U CN203936030U (en) | 2014-05-23 | 2014-05-23 | Powder material sieving machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420270324.2U CN203936030U (en) | 2014-05-23 | 2014-05-23 | Powder material sieving machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203936030U true CN203936030U (en) | 2014-11-12 |
Family
ID=51855379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420270324.2U Expired - Fee Related CN203936030U (en) | 2014-05-23 | 2014-05-23 | Powder material sieving machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203936030U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170457A (en) * | 2015-07-17 | 2015-12-23 | 中国科学院南京土壤研究所 | Vertical pulse type electric vibrating and screening machine and use method thereof |
| CN107415081A (en) * | 2017-09-20 | 2017-12-01 | 佛山市深研信息技术有限公司 | A kind of CABLE MATERIALS cutting facility for granulating with screening function |
| CN108097572A (en) * | 2017-12-12 | 2018-06-01 | 郑州诚合信息技术有限公司 | A kind of ultra-fine natural peral dressing sieve separating device for facilitating discharging |
| CN110860471A (en) * | 2019-11-19 | 2020-03-06 | 耒阳市刘燕酿制生物科技有限公司 | Grader is used in freeze-dried food processing |
| CN112108360A (en) * | 2020-09-08 | 2020-12-22 | 马鞍山元辰网络科技有限公司 | Gravel screening device for earthwork construction and screening method thereof |
| CN115138575A (en) * | 2022-06-28 | 2022-10-04 | 广州宏睿仪器设备有限公司 | Automatic food detection equipment and process |
-
2014
- 2014-05-23 CN CN201420270324.2U patent/CN203936030U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170457A (en) * | 2015-07-17 | 2015-12-23 | 中国科学院南京土壤研究所 | Vertical pulse type electric vibrating and screening machine and use method thereof |
| CN107415081A (en) * | 2017-09-20 | 2017-12-01 | 佛山市深研信息技术有限公司 | A kind of CABLE MATERIALS cutting facility for granulating with screening function |
| CN108097572A (en) * | 2017-12-12 | 2018-06-01 | 郑州诚合信息技术有限公司 | A kind of ultra-fine natural peral dressing sieve separating device for facilitating discharging |
| CN108097572B (en) * | 2017-12-12 | 2020-10-16 | 安徽正特机电科技有限公司 | Make things convenient for superfine natural pearl powder screening plant of ejection of compact |
| CN110860471A (en) * | 2019-11-19 | 2020-03-06 | 耒阳市刘燕酿制生物科技有限公司 | Grader is used in freeze-dried food processing |
| CN112108360A (en) * | 2020-09-08 | 2020-12-22 | 马鞍山元辰网络科技有限公司 | Gravel screening device for earthwork construction and screening method thereof |
| CN115138575A (en) * | 2022-06-28 | 2022-10-04 | 广州宏睿仪器设备有限公司 | Automatic food detection equipment and process |
| CN115138575B (en) * | 2022-06-28 | 2024-05-31 | 广州宏睿仪器设备有限公司 | Automatic food detection equipment and process |
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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: 20141112 Termination date: 20150523 |
|
| EXPY | Termination of patent right or utility model |