CN203064678U - Vibrating disc in direction of regular quasi-rectangle blank - Google Patents
Vibrating disc in direction of regular quasi-rectangle blank Download PDFInfo
- Publication number
- CN203064678U CN203064678U CN 201320029941 CN201320029941U CN203064678U CN 203064678 U CN203064678 U CN 203064678U CN 201320029941 CN201320029941 CN 201320029941 CN 201320029941 U CN201320029941 U CN 201320029941U CN 203064678 U CN203064678 U CN 203064678U
- Authority
- CN
- China
- Prior art keywords
- blank
- slide rail
- dish
- shakes
- rib
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Sorting Of Articles (AREA)
Abstract
The utility model relates to a vibrating disc in the direction of a regular quasi-rectangle blank. The vibrating disc comprises a disc body, a vibrator and a slide way. The disc body comprises a disc surface and ribs formed in the periphery of the disc surface and blocking an internal blank; the notch of the rib is butted with the inlet of the slide way; the disc surface comprises a middle raised continuous curved surface; the ratio of the raised height Y of the curved surface to the bottom diameter of the curved surface is 1/20 to 1/5; a slide rail with a radial tilt angle and a block rail on the inner side of the slide rail are formed between the rib and the curved surface; an overhead doctor blade is arranged at the upper part of the rib in front of the inlet of the block rail; the width of the slide rail is not larger than the length of a minimum side of the lower end surface of the blank; and the height gap between the doctor blade and the disc surface is larger than the height of the blank and smaller than the length of the minimum side of the upper and lower end surfaces. The vibrating disc can greatly reduce the collision force of blanks, caused by tumbling and falling during the process of rearrangement and screening of the blanks, eradicates the phenomenon of edge chipping and chip off-falling of the blanks, caused by the height difference of the blanks, obviously improves the yield of the blanks, and improves production and management efficiencies of enterprises.
Description
Technical field
The utility model relates to the processing unit (plant) of mold pressing blank, and more particularly, the utility model relates to a kind of processing unit (plant) of accurate cuboid blank of compression molding.
Background technology
In industries such as magnetic material, partial metallurgy, pottery processing, the dish (shake dish) that shakes be widely adopted to the accurate cuboid blank of powder compression molding reset, neat direction, automatic transport realizes following process continuously to the following process station then.Accurate cuboid blank generally includes six of almost plane (being directrix plane) namely: upper surface, lower surface, 4 sides, in rearrangement, neat process, vibratory force and the distinctive shape, structure of dish by self of shaking, come the different parts that the accurate cuboid blank of entanglement is put upside down in orientation is applied different directions, multi-form application force, make the blank travel direction reset, neat, make rambling blank can playback up and down, about make in order.
The dish that shakes of traditional accurate cuboid blank only goes out to send to design the dish that shakes from this intrinsic shape concept of container of holding blank, and consequently tradition is shaken to coil and is the recessed funnel type in middle part, at the funnel wall spiral-shaped guide is set.Reset and the screening operation process in, spiral-shaped guide only allow the lower surface upper and lower end face last, about the blank made in order gradually spiral rise to the slideway entrance on its top, enter the following process station then; And the blank that does not meet placing direction can enter before and after the spiral-shaped guide screened come out under vibratory force participates in, drop into the shake tray bottom along the funnel wall, thereby beginning next round random rearrangement continues to reset, neatly along spiral-shaped guide from the tray bottom of shaking ...Obviously, in this random screening process, blank is subjected to the bigger vibrations of amplitude, and the spiral-shaped guide diff-H is bigger on the funnel wall, blank continually with wall, guide rail, try to get to the heart of a matter and bump each other.And accurate cuboid blank belongs to multi-angular body, above-mentioned vibration, roll, fall, be easy to cause blank to collapse the angle in the collision process to fall piece, and blank size is less, the Short Item difficulty is collapsed in sorting, thereby bring very big loss to enterprise's production, so that be difficult to adapt to the growing market demand all the more.
Summary of the invention
Above-mentioned shortcoming at prior art, the purpose of this utility model is the dish that shakes that a kind of neat accurate cuboid blank direction will be provided, it has following advantage: can significantly reduce blank and reset the collision dynamics that rolling is fallen in the screening process, stop blank and fall the piece phenomenon because of the angle that collapses that diff-H causes, significantly increase the blank yield rate, improve enterprise and produce and the efficiency of management.
For this reason, technical solution of the present utility model is a kind of dish that shakes of neat accurate cuboid blank direction.Described blank comprises six of almost plane: upper surface, lower surface, 4 sides, the described dish that shakes comprises disk body, vibrator, slideway, described disk body comprises card and block the rib of inner blank around card, the rib breach docks described slideway entrance, and described card comprises the continuous curve surface of middle part epirelief, and the epirelief height Y of curved surface is 1/20-1/5 with the ratio of footpath, the end of curved surface D; Comprise the slide rail with inclination angle entad, the retaining rail of slide rail inboard between described rib and the curved surface; Rib top before the described retaining rail entrance is provided with built on stilts scraping blade; The width of described slide rail is not more than the minimum length of side of blank lower surface; High crack between described scraping blade bottom and the described card greater than the blank height less than the minimum length of side in the upper and lower end face.
The dish that shakes of the present utility model, pin is aimed on six almost planes of cuboid blank has the number seamed edge different with structure, and the problem of insufficient strength, change recessed funnel type structure in the past, and the curved-surface structure of epirelief in the middle part of adopting, because the ratio of the curved surface epirelief height Y that chooses and footpath, end D is suitable, make blank no matter from card center trend rib slide rail, or fall go back to the card center from the slide rail at edge, the diff-H that its vibration descends can both significantly reduce, reset the collision dynamics that rolling is fallen in the screening process thereby can significantly reduce blank, stop blank and collapse the angle because of what diff-H caused, fall the piece phenomenon; And, pin is aimed at the cuboid blank and can is the blank height, can be this modeling characteristic of lower surface with the area reckling with reckling in all length of sides, 1. first run screening: by the built on stilts scraping blade on rib top before the retaining rail entrance, the blank of limiting to block stacked blank and side rule by high crack is admitted the blank that highly closes limit to enter and is kept off the rail entrance; 2. blank is collected: collect those by the retaining rail and namely highly close the blank of limit, top end rule by first run screening, and make it to be integrated into slide rail head population; 3. two take turns screening: the tolerance by the slide rail at inclination angle entad filters out the blank that left and right directions has some setbacks, turns upside down from highly close the limit blank again: make it centre-of gravity shift on slide rail and fall after rise in inboard retaining criterion encloses, left and right directions is smooth and easy, the blank of playback is then occupied stably on the slide rail and entered rib breach-slideway entrance along slide rail always up and down, is transported to the following process station gradually.Therefore, the utility model is wiped problems such as flower having solved tradition piece, crackle, sticking powder and the cut that dish processing belt corner angle product exists that shake, particularly reach more than 90% at the fix-rate of falling problems such as piece, crackle in the course of processing even on 100% basis, can also implement fruitfully that blank is reset, neat operation, promote blank and reset neat operating efficiency and yield rate, improve enterprise and produce and the efficiency of management.
For the geometry of further optimizing curved surface, the suitability that increases structural development, improve blank and reset and neat operating efficiency and yield rate, the utility model also comprises following improvement:
Described curved surface is the smooth cambered surface that is symmetrical in its middle part epirelief.
Described curved surface is the smooth spherical crown that is symmetrical in its middle part epirelief, and the epirelief height Y of spherical crown is 1/15-1/8 with the ratio of footpath, end D.
For further optimizing the connecting of echelon screening, improve blank and reset and neat operating efficiency and yield rate, the utility model also comprises following improvement:
The head of described slide rail is positioned at 60-120 degree radian place after the described retaining rail head portion.
For further increasing the extensive comformability for the screening of variety classes blank, improve dissimilar blanks and reset and neat operating efficiency and yield rate, the utility model also comprises following improvement:
Be described slideway entrance from head to its afterbody of described slide rail, the inclination alpha of described slide rail progressively increases to the 9-20 degree since 0 degree.
Between the 30-90 degree of described slideway entrance after described slide rail head; Described slideway entrance also is provided with the proximity switch that the sensing blank exists.
When being full of product near switch on rotation slide rail top, the dish work that stops to shake when slide rail top does not have product, starts the shake dish and works immediately, thereby guarantees the continuity that efficiency of energy utilization and product are carried.
For the moving resistance that further reduces blank in the screening and the percent recovery that improves raw material, reduce production costs, improve production management efficiency, the utility model also comprises following improvement:
Offer the arc groove and the sieve aperture that leak dust on the described card; The arc groove is positioned at described retaining rail head portion place, and described sieve aperture is before the described slide rail head between the 0-40 degree.
Be provided with detouchable under described arc groove and the sieve aperture and connect powder box.
For the screening link that increases unelected blank, make left and right directions flat the turning 90 degrees of blank that have some setbacks be made in order left and right directions, further improve the screening effeciency of blank, the utility model also comprises following improvement:
Be described slideway entrance from head to its afterbody of described slide rail, described retaining rail direction be partial to described disk body middle part gradually and with slide rail difference near described rib; Initial from the slide rail difference of described slideway entrance, be provided with the interior retaining of one radian 80-130 degree, terminal spacing with described rib of retaining is not more than the minimum length of side of blank lower surface in this.
For further optimizing the machining state of making blank in order, improve the follow-up work efficiency of blank, the utility model also comprises following improvement:
Described slideway comprises that the cross section continues the structure that 90 degree reverse.
In a word, the improved dish that shakes of the utility model can significantly use manpower and material resources sparingly, and improves workman's inspection component efficiency, reduces inspection partial pressure and flase drop, loss, and efficient is increased exponentially; Can tackle better on the market increasing this series products different demands, reduced productive costs, effectively improved the market competitiveness.
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 coils structure master's scheme drawing of embodiment for the utility model shakes.
Fig. 2 is that U-U among Fig. 1 is to cross-sectional schematic.
Fig. 3 is the X-direction scheme drawing of Fig. 2 middle slideway.
Fig. 4 be among Fig. 1 V to the schematic perspective view of cross-sectional plane part.
Fig. 5 be among Fig. 1 W to the schematic perspective view of cross-sectional plane part.
Fig. 6-9 is as the criterion respectively that the master of cuboid blank looks, the right side is looked, overlooks, schematic perspective view.
The master that Figure 10-13 is respectively blank processing products obtained therefrom looks, the right side is looked, overlook, schematic perspective view.
Figure 14 coils the mode of operation master scheme drawing that embodiment loads blank for the utility model shakes.
Figure 15 coils the mode of operation schematic perspective view that embodiment loads blank for the utility model shakes.
Figure 16 shakes for tradition and coils the mode of operation schematic perspective view that loads blank.
As Figure 16, be depicted as the tradition dish that shakes and load the mode of operation schematic perspective view of blank.Tradition is shaken dish for the recessed funnel type in middle part, at the funnel wall spiral-shaped guide G is set.Reset and the screening operation process in, the tolerance of spiral-shaped guide G only allow the lower surface upper and lower end face last, about the blank P that makes in order gradually spiral rise to the slideway R entrance on its top, enter the following process station then; And the blank P that does not meet placing direction is screened by the vibratory force on the spiral-shaped guide G, drops into the tray bottom of shaking along the funnel wall, thereby beginning next round random rearrangement continues to reset, neatly along spiral-shaped guide from the tray bottom of shaking ...Obviously, the tradition riddle that shakes selects in the process, and blank P is subjected to the bigger vibrations of amplitude, and spiral-shaped guide G diff-H is bigger on the funnel wall, blank P continually with wall, guide rail G, try to get to the heart of a matter and bump each other.And accurate cuboid blank P belongs to multi-angular body, above-mentioned vibration, roll, fall, be easy to cause blank P to collapse the angle in the collision process to fall piece, and blank P size is less, the Short Item difficulty is collapsed in sorting, thereby bring very big loss to enterprise's production and operating management, so that be difficult to adapt to the growing market demand.
The specific embodiment
As Fig. 1-3, be depicted as the shake different visual angles scheme drawing of dish example structure of the utility model, and referring to Fig. 4,5,6-9.This dish embodiment that shakes comprises disk body, vibrator (do not give and illustrating), slideway 10, and described disk body comprises card and block the rib 20 of inner blank P that around card rib 20 breach dock the entrance of described slideway 10; Described slideway 10 comprises that the cross section continues the structure that 90 degree reverse.Described slideway 10 entrance also are provided with the proximity switch 11 that the sensing blank exists.Wherein 2 curved arrow are represented the flow direction of neat blank and non-neat blank respectively.
And described card comprises the smooth spherical crown 30 of middle part epirelief, and the epirelief height Y of spherical crown 30 is 1/15-1/8 with the ratio of footpath, end D.Comprise the slide rail 40 with inclination alpha entad, the retaining rail 50 of slide rail 40 inboards between described rib 20 and spherical crown 30 curved surfaces; The head of described slide rail 40 is positioned at described retaining rail 50 heads 60-120 degree radian place afterwards.Rib 20 tops before described retaining rail 50 entrances are provided with built on stilts scraping blade 60; The width of described slide rail 40 is not more than the minimum length of side B of blank P lower surface; High crack between described scraping blade 60 bottoms and the described card greater than blank P height H less than reckling among length of side A, B, the L in the upper and lower end face, between the 30-90 degree of described slideway 10 entrances after described slide rail 40 heads.。
Be described slideway entrance 10 from head to its afterbody of described slide rail 40, described retaining rail 50 directions be partial to described disk body middle part gradually and with slide rail 40 differences near described rib 20; Initial from slide rail 40 differences of described slideway 10 entrance, be provided with the interior retaining 70 of one radian 80-130 degree, retaining 70 terminal spacings with described rib 20 are not more than the minimum length of side B of blank P lower surface in this.
Offer the arc groove (not giving detailed showing) and the sieve aperture 21 that leak dust on the described card; The arc groove is positioned at described retaining rail 50 head places, and described sieve aperture 21 is before described slide rail 40 heads between the 20-40 degree.Be provided with detouchable under described arc groove and the sieve aperture 21 and connect powder box 80.
As Fig. 4,5, shown in be respectively the schematic perspective view to, W to the cross-sectional plane part into V among Fig. 1.
V comprises the retaining rail 50 between rib 20 and spherical crown 30 curved surfaces to shown in the cross-sectional plane sectional perspective scheme drawing, and its lower surface is the horizontal surface of inclination angle 0 degree; W is to shown in the cross-sectional plane sectional perspective scheme drawing, comprise and have the entad slide rail 40 of inclination alpha between rib 20 and spherical crown 30 curved surfaces, be described slideway 10 entrance from head to its afterbody of described slide rail 40, the inclination alpha of described slide rail 40 progressively increases to the 9-20 degree since 0 degree.
As Fig. 6-9, shown in be as the criterion respectively that the master of cuboid blank looks, the right side is looked, overlook, schematic perspective view.Described blank P comprises six of almost plane: upper surface, lower surface, 4 sides, these 6 directrix planes tolerance length of side separately is respectively: lower surface BxL, upper surface AxL, 2 long side surface HxL, 2 short side HxA.
As Figure 14-15, shown in be respectively the utility model dish embodiment that shakes and load mode of operation master scheme drawing, the schematic perspective view of blank.Therefrom as seen: the utility model shakes, and to screen mechanism as follows for dish embodiment:
1) first run screening: have only lower surface BxL and upper surface AxL to drop on blank P on the card, then it is erect height and erects highly higher A and L for lower H, therefore such blank P just can not touch scraping blade 60 high crack limits, just not can be blown down, thereby can enter retaining rail 50 entrances, progressively be pooled to slide rail 40 heads, this step has stopped, has screened out long side surface HxL, short side HxA and dropped on the blank P on the card.
2) 2 take turns screening: the blank P that is pooled to slide rail 40 heads, wherein, upper surface AxL drops on the blank P on the slide rail 40, perhaps the B limit among the BxL of lower surface along slide rail 40 and the L limit perpendicular to the blank P of slide rail 40, owing to reset with regard to dropping down from slide rail 40 because of centre-of gravity shift gradually, being screened out again greater than 40 tolerance of slide rail B in A limit, L limit; Have only L limit among the BxL of lower surface along slide rail 40 B limits perpendicular to the blank P of slide rail 40, then its B limit is not more than 40 tolerance of slide rail B, can be carried among the slide rail 40 fully, go into 10 mouthfuls until entering slideway, by whole screenings, arrangement, realize replacement, neat.
3) from the beginning reset: upper surface AxL drops on the blank P on the slide rail 40, perhaps the B limit among the BxL of lower surface along slide rail 40 and the L limit perpendicular to the blank P of slide rail 40, after from slide rail 40, dropping down, wherein, lower surface BxL drops on the blank on the slide rail 40, through interior retaining 70 terminal with rib 20 between neutral, can be turn 90 degrees by flat, keep off rail 50 entrances from newly entering, enter slide rail 40-slideway 10 then; And in the slide rail falling process of front, the blank P that upper surface AxL drops on the slide rail 40 may turn over turnback, transfers lower surface BxL to and drops on card, from newly entering retaining rail 50 entrances, entering slide rail 40-slideway 10 then.
Through above-mentioned rearrangement, neat blank P, pass through following process again, become that each is mainly looked as Figure 10-13, the right side is looked, overlook, the product shown in the schematic perspective view.
Claims (10)
1. the dish that shakes of a neat accurate cuboid blank direction, described blank comprises six of almost plane: upper surface, lower surface, 4 sides, the described dish that shakes comprises disk body, vibrator, slideway, described disk body comprises card and block the rib of inner blank around card, the rib breach docks described slideway entrance, it is characterized in that: described card comprises the continuous curve surface of middle part epirelief, and the epirelief height Y of curved surface is 1/20-1/5 with the ratio of footpath, the end of curved surface D; Comprise the slide rail with inclination angle entad, the retaining rail of slide rail inboard between described rib and the curved surface; Rib top before the described retaining rail entrance is provided with built on stilts scraping blade; The width of described slide rail is not more than the minimum length of side of blank lower surface; High crack between described scraping blade bottom and the described card greater than the blank height less than the minimum length of side in the upper and lower end face.
2. the dish that shakes of neat accurate cuboid blank direction according to claim 1, it is characterized in that: described curved surface is the smooth cambered surface that is symmetrical in its middle part epirelief.
3. the dish that shakes of neat accurate cuboid blank direction according to claim 1, it is characterized in that: described curved surface is the smooth spherical crown that is symmetrical in its middle part epirelief, the epirelief height Y of spherical crown is 1/15-1/8 with the ratio of footpath, end D.
4. as the dish that shakes of neat accurate cuboid blank direction as described in one of claim 1-3, it is characterized in that: the head of described slide rail is positioned at 60-120 degree radian place after the described retaining rail head portion.
5. the dish that shakes of neat accurate cuboid blank direction according to claim 1 is characterized in that: be described slideway entrance from head to its afterbody of described slide rail, the inclination alpha of described slide rail progressively increases to the 9-20 degree since 0 degree.
6. the dish that shakes of neat accurate cuboid blank direction according to claim 1 is characterized in that: offer the arc groove and the sieve aperture that leak dust on the described card; The arc groove is positioned at described retaining rail head portion place, and described sieve aperture is before the described slide rail head between the 0-40 degree.
7. as the dish that shakes of neat accurate cuboid blank direction as described in the claim 6, it is characterized in that: be provided with detouchable under described arc groove and the sieve aperture and connect powder box.
8. as the dish that shakes of neat accurate cuboid blank direction as described in one of claim 1-3, it is characterized in that: be described slideway entrance from head to its afterbody of described slide rail, described retaining rail direction be partial to described disk body middle part gradually and with slide rail difference near described rib; Initial from the slide rail difference of described slideway entrance, be provided with the interior retaining of one radian 80-130 degree, terminal spacing with described rib of retaining is not more than the minimum length of side of blank lower surface in this.
9. the dish that shakes of neat accurate cuboid blank direction according to claim 1 is characterized in that: between the 30-90 degree of described slideway entrance after described slide rail head; Described slideway entrance also is provided with the proximity switch that the sensing blank exists.
10. the dish that shakes of neat accurate cuboid blank direction according to claim 1, it is characterized in that: described slideway comprises that the cross section continues the structure that 90 degree reverse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320029941 CN203064678U (en) | 2013-01-18 | 2013-01-18 | Vibrating disc in direction of regular quasi-rectangle blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320029941 CN203064678U (en) | 2013-01-18 | 2013-01-18 | Vibrating disc in direction of regular quasi-rectangle blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203064678U true CN203064678U (en) | 2013-07-17 |
Family
ID=48763494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320029941 Expired - Lifetime CN203064678U (en) | 2013-01-18 | 2013-01-18 | Vibrating disc in direction of regular quasi-rectangle blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203064678U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922087A (en) * | 2014-04-25 | 2014-07-16 | 苏州源硕精密模具有限公司 | Flat material turning and sequencing device |
| CN107055044A (en) * | 2017-03-21 | 2017-08-18 | 北京领邦智能装备股份公司 | Vibration feeding device |
| CN108298260A (en) * | 2018-01-29 | 2018-07-20 | 广东添道仓储设备有限公司 | The automation separated transmission device of storage rack production |
| CN111974929A (en) * | 2020-08-20 | 2020-11-24 | 河北鑫宇金属制品股份有限公司 | Efficient riveting machine |
-
2013
- 2013-01-18 CN CN 201320029941 patent/CN203064678U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922087A (en) * | 2014-04-25 | 2014-07-16 | 苏州源硕精密模具有限公司 | Flat material turning and sequencing device |
| CN107055044A (en) * | 2017-03-21 | 2017-08-18 | 北京领邦智能装备股份公司 | Vibration feeding device |
| CN108298260A (en) * | 2018-01-29 | 2018-07-20 | 广东添道仓储设备有限公司 | The automation separated transmission device of storage rack production |
| CN111974929A (en) * | 2020-08-20 | 2020-11-24 | 河北鑫宇金属制品股份有限公司 | Efficient riveting machine |
| CN111974929B (en) * | 2020-08-20 | 2021-07-30 | 河北鑫宇金属制品股份有限公司 | Efficient riveting machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203064678U (en) | Vibrating disc in direction of regular quasi-rectangle blank | |
| CN109592126A (en) | A kind of material mounted box production line and moon cake mounted box production line | |
| CN104903011A (en) | Sorting element for a sorting device | |
| CN203764547U (en) | Cleaning device of rapeseed | |
| CN202541883U (en) | Feeding device | |
| CN204602612U (en) | Cylinder type vibratory sieve | |
| CN203682444U (en) | Vibrating disk for PCB loading | |
| CN203972318U (en) | A kind of Apparatus and method for that utilizes compressed air system to improve feed separation rate | |
| CN204503543U (en) | The blanking machine of powder material screening can be carried out | |
| CN202232812U (en) | Plane round sifter | |
| CN206186153U (en) | Polyurethane resin production facility discharging device of convenient screening | |
| CN109436526A (en) | It is a kind of for shipping the hophornbeam packing case of screw rod | |
| CN101891058A (en) | Automatic feeding device for automatic detector | |
| CN204528428U (en) | Crystal oscillator pinrshape vibrating disk | |
| CN201485059U (en) | Device for separating and arranging springs | |
| CN201737437U (en) | Automatic feeding device of automatic detection machine | |
| CN205199946U (en) | Disc type water dropper and material are autosegregation device | |
| CN211970732U (en) | Support vibration dish | |
| CN205851355U (en) | A kind of oscillating sieving machine | |
| CN209796578U (en) | Automatic vibration dish of material returned | |
| CN211337596U (en) | A shake dish and prevent powder structure for magnetic core processing | |
| EP2691185B1 (en) | Sieve carrier frame | |
| CN101853001B (en) | Production process of shockproof seat | |
| CN205851349U (en) | A kind of device of the screening for nanometer silver powder | |
| CN103831237A (en) | Wolfberry grading device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |
|
| CX01 | Expiry of patent term |