CN104959303B - A kind of method and its equipment of stock grading screening - Google Patents
A kind of method and its equipment of stock grading screening Download PDFInfo
- Publication number
- CN104959303B CN104959303B CN201510408913.1A CN201510408913A CN104959303B CN 104959303 B CN104959303 B CN 104959303B CN 201510408913 A CN201510408913 A CN 201510408913A CN 104959303 B CN104959303 B CN 104959303B
- Authority
- CN
- China
- Prior art keywords
- screening
- vibration
- conveyer belt
- vibration screening
- sieve aperture
- 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 - Fee Related
Links
- 238000012216 screening Methods 0.000 title claims abstract description 347
- 238000000034 method Methods 0.000 title claims abstract description 49
- 239000000463 material Substances 0.000 claims abstract description 176
- 238000003860 storage Methods 0.000 claims abstract description 31
- 230000004888 barrier function Effects 0.000 claims description 44
- 230000007246 mechanism Effects 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 21
- 230000000977 initiatory effect Effects 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000008450 motivation Effects 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 22
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 11
- 241000196324 Embryophyta Species 0.000 description 10
- 238000012546 transfer Methods 0.000 description 9
- 230000010355 oscillation Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000004513 sizing Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 235000006667 Aleurites moluccana Nutrition 0.000 description 4
- 240000004957 Castanea mollissima Species 0.000 description 4
- 235000018244 Castanea mollissima Nutrition 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 235000017060 Arachis glabrata Nutrition 0.000 description 2
- 244000105624 Arachis hypogaea Species 0.000 description 2
- 235000010777 Arachis hypogaea Nutrition 0.000 description 2
- 235000018262 Arachis monticola Nutrition 0.000 description 2
- 241000758789 Juglans Species 0.000 description 2
- 235000014075 Juglans mandschurica Nutrition 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 235000020232 peanut Nutrition 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 235000014571 nuts Nutrition 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/10—Screens in the form of endless moving bands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4663—Multi-layer screening surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention provides the method and its equipment of a kind of screening of stock grading, belong to nut process field, stock grading screening technique passes through multiple vibration screening parts and material is screened successively；Equipment for realizing the stock grading screening technique includes frame, device for vibration screening and storage device, and the device for vibration screening is arranged in the frame, and the storage device includes multiple material storing rooms.The method and apparatus that the technical program is provided overcomes that existing screening technique screening precision is not high, and screening measure efficiency is low, and production cost is high, is unfavorable for the shortcoming of environmental protection.
Description
Technical field
The present invention relates to nut process field, in particular to the method and its equipment of a kind of screening of stock grading.
Background technology
The sizing screening to material is all mainly to rely on manpower at present, and this method can not be carried out material according to size
Accurately separate, it is impossible to meet the follow-up requirement that accurate processing is carried out to material；Occupied very by manpower screening needs simultaneously
Big space, can produce the manpower and venue cost of costliness, and substantial amounts of dust can be also produced in screening process, be unfavorable for environmental protection,
Also it is unfavorable for that labourer's is healthy, therefore existing screening technique not only screens uneven, and also production cost is higher.
The content of the invention
It is an object of the invention to provide the method and its equipment of a kind of screening of stock grading, to improve above-mentioned problem.
What the present invention was realized in：
A kind of method of stock grading screening, comprises the following steps：
A. material is placed on vibration screening part, vibration screening part is at least three, each vibration screening part
On be provided with leakage sieve aperture, the diameter of the leakage sieve aperture on vibration screening part is less than the leakage sieve aperture on latter vibration screening part
Diameter；
B. vibration screening part is worked and advances with driving material great-jump-forward, and the material less than leakage sieve diameter is sieved through leakage
Hole is fallen in storage device, and the material more than leakage sieve diameter then enters on next vibration screening part；
C. repeat step b, until material is finished by the screening of last vibration screening part or entirely falls in storage
In device.
When material diameter is less than leakage sieve diameter, material can be through leakage sieve aperture；When material is with diameter greater than leakage sieve diameter
When, material then rest on Lou sieve aperture top, therefore in order to by material of different sizes according to particle diameter size classified with
Continuous processing, can only screen according to order from small to large to material after an action of the bowels, and it is small first to filter out diameter, and diameter is screened afterwards
Big, so as to realize step sizing.
The diameter of the leakage sieve aperture on vibration screening part is less than the diameter of the leakage sieve aperture on latter vibration screening part, than
As vibration screening part is at least three, we are selected as a example by three, then these three can be respectively small leakage sieve aperture vibration screening
Partly, middle leakage sieve aperture vibration screening part and big leakage sieve aperture vibration screening part, leakage sieve set on each vibration screening part
The diameter in hole is identical, and the diameter of the leakage sieve aperture between each vibration screening part is different, in the process of screening, diameter
Small leakage sieve aperture is first screened to material, therefore material is first placed on the small vibration screening part of Lou sieve diameter, less than leakage
The material of sieve diameter is then fallen into storage device through leakage sieve aperture, and the material more than leakage sieve diameter then enters next vibration
In screen fraction, last vibration screening part is continued until, now material may have been screened just, entirely fall in storage
In device, it is also possible to do not fall within storage device also, can be classified as a class, or vibration is set again if remaining
Screen fraction is screened, until entirely falling in storage device.Wherein vibration screening part is in addition to vibration, moreover it is possible to by material
Next vibration screening part is transported to from a vibration screening part, to realize step sizing, this method is not only practical, effect
Rate is high, and can accurately realize the screening to material, facilitates follow-up processing.
A kind of equipment for realizing the method for stock grading screening, including frame, device for vibration screening and storage device,
Device for vibration screening is arranged in frame, and storage device includes multiple material storing rooms；Device for vibration screening includes at least three
Vibration screening part, is provided with leakage sieve aperture on each vibration screening part, the diameter of the leakage sieve aperture on vibration screening part is small
In the diameter of the leakage sieve aperture on latter vibration screening part, a material storage is provided with below each vibration screening part
Deposit room.
Leakage sieve aperture is equipped with each vibration screening part, the leakage slot size on each vibration screening part is equal, respectively
Leakage sieve aperture between individual vibration screening part is different, and each vibration screening part is screened to material successively, vibration screening part
Leakage sieve diameter always less than the leakage sieve diameter of latter vibration screening part, actual screening process is such：First will
Material is placed on the vibration screening part for most starting, and the material less than the leakage sieve diameter of the vibration screening part is then sieved through leakage
Hole, into material storing room, the material more than the leakage sieve aperture of the vibration screening part then enters next vibration screening part
Screened, until screening is completed, in actually used process, can be according to the diameter of material screening design leakage sieve aperture
Size and the number of vibration screening part.
Support is used to install each mechanical part, it would however also be possible to employ the form of cabinet, primarily to making whole device middle part
The arrangement of part is more in order and compact, is naturally also arranged on different positions to realize part；Device for vibration screening is
By vibration realizing to the screening of material, vibration can be realized with various vibrating mechanisms, such as vibrator, and screening can be used
Various mechanisms with leakage sieve aperture, such as with the screening conveyer belt of leakage sieve aperture, certain vibration screening part can also use a knot
Structure, such as vibratory sieve.
Further, each vibration screening part include vibrating mechanism, be provided with Lou sieve aperture screening conveyer belt and with sieve
Two drives that conveyer belt matches, drive are selected to be rotatably arranged in frame and driven by motor, screening conveyer belt
One end is arranged on the top of next screening conveyer belt one end.
Drive is arranged on support, realizes rotating by motor, and drive is rotated and drives screening conveyer belt to rotate, screening
Conveyer belt is provided with leakage sieve aperture, after material is placed on screening conveyer belt, with moving horizontally and up-down vibration for screening conveyer belt,
Less than leakage sieve diameter material through leakage sieve aperture enter storage room, more than leakage sieve diameter material then with screening conveyer belt
Move horizontally into next section with leakage sieve aperture screening conveyer belt, continue screen, screen conveyer belt one end be arranged at down
One top of screening conveyer belt one end, could so smoothly enter by the material of screening in the presence of conveyer belt is screened
On next screening conveyer belt, simultaneously because between two screening conveyer belts in the vertical direction drop, material from one sieve
The process for selecting conveyer belt to enter next screening conveyer belt can occur vibration by a relatively large margin due to the drop, accelerate screening
Process, can also be in same level between each screening conveyer belt.
It should be noted that：Drive drive rotate the preferred servomotor of motor, servo-drive system be make object position,
The output controlled volume such as orientation, state can follow the automatic control system of any change of input target (or set-point), and adopt
Control speed can be made with servomotor, positional precision is very accurate, voltage signal can be converted into torque and rotating speed to drive
Control object, servo motor rotor rotating speed is controlled by input signal, and can fast reaction, in automatic control system, as holding
Units, and with characteristics such as electromechanical time constant small, the linearity is high, pickup voltages, therefore can be realized using servomotor
Accurate control to various states such as screening conveyer belt transfer rate and positions, it is convenient and swift neatly to realize to screening
The control of journey.
Further, vibrating mechanism includes polylith vibration barrier, and the inside two ends of each screening conveyer belt are provided with and shake
Dynamic baffle plate, vibration barrier is slided and is embedded in frame, and vibration barrier is cambered surface near the side of drive.
Vibration barrier is used to realize the vibration of screening conveyer belt, and the inside two ends of each screening conveyer belt are provided with vibration
Baffle plate, is such ability in order to ensure that entirely screening conveyer belt is all vibration and realizes that screening conveyer belt equably vibrates
Screen the material of the rank is as much as possible, without leaving on next screening conveyer belt；Vibration barrier is close to
The side of drive be designed as cambered surface be then in order to prevent material through leakage sieve aperture enter screening conveyer belt inside when, by
In screening conveyer belt not only movement but also vibration, material can move to the inner side of power transmission shaft and then the rotation to power transmission shaft causes resistance very
To being stuck between power transmission shaft and screening conveyer belt, screening plant is caused to damage, vibration barrier is set near the side of drive
Cambered surface is calculated as, during material enters screening conveyer belt inside, baffle plate is vibrated between material and drive and is separated, material
Resistance would not be caused to the rotation of drive, while when material is screened on conveyer belt is screened, through the thing of leakage sieve aperture
Material would not enter between drive and screening conveyer belt, drive would not also be blocked, so as to efficiently avoid the problem.
Further, vibrating mechanism also includes multiple cam mechanisms, and cam mechanism includes cam, and every piece of vibration barrier is divided into
Two vertically arranged parts, respectively top half and the latter half, top half and the latter half are slided be embedded respectively
In frame, the side near drive of top half is cambered surface, and the side near drive of the latter half is plane, cam
It is arranged between the top half of baffle plate and the latter half.
During vibration barrier moves up and down, in order to ensure that material will not fall between drive and screening conveyer belt
In the gap of formation, the top half of vibration barrier is designed as cambered surface near the side of drive, material can be effectively prevented from
The gap fallen between screening conveyer belt and drive；But vibration barrier near the side of drive be cambered surface, due to
Vibration barrier moves up and down, and in motion process, drive can hinder the up and down motion of vibration barrier, in order to ensure to screen conveyer belt
Oscillation Amplitude, vibration barrier is divided into upper and lower two parts, cam is arranged between, and during cam rotation, shakes
Motion upwardly or downwardly is done in two parts of dynamic baffle plate simultaneously, is designed by the contour line to cam, it is ensured that shaking
The top half of dynamic baffle plate will not be transmitted wheel and hinder and then do not interfere with vibration barrier lower half during moving downward
Divide and move downward, it is ensured that the Oscillation Amplitude of screening conveyer belt, can as needed adjust the Oscillation Amplitude of vibration barrier.
Further, also including collecting tank, collecting tank is located at the inside or lower section of screening conveyer belt, each material storing
Room is connected by material channel with collecting tank respectively.
Material is then passed through screening conveyer belt through the top layer leakage sieve aperture of screening conveyer belt into after screening conveyer belt inside
Bottom leaks sieve aperture, and leakage sieve aperture spreads all on screening conveyer belt, therefore needs to be collected together ability through the material for leaking sieve aperture
Into in storage room, and collect and can be collected when material leaks sieve aperture through the top layer of screening conveyer belt, it is also possible to
It is collected again after material leaks sieve aperture through screening conveyer belt two-layer, therefore collecting tank can be designed in screening conveyer belt
Portion or lower section, collecting tank design screen conveyer belt inside when, material channel can be designed as it is inclined, with sieve
Select conveyer belt shape at an angle, the material into collecting tank is entered in storage room by the inclined material channel, works as collection
When screening below conveyer belt, material channel then be can be designed as perpendicular to screening conveyer belt, and material is passed through for groove design
Just entered in storage room by material channel after the leakage sieve aperture of top layer and bottom.
Further, the both sides of each screening conveyer belt are equipped with protective plate.
Material enters next screening conveyer belt from a screening conveyer belt, because screening conveyer belt is vibration, material
Lateral edges that unavoidably can be from screening conveyer belt during vibration drop, therefore in order to ensure smoothly entering for whole screening process
OK, protective plate is set in the both sides of each screening conveyer belt, when material because vibration will be from the edge landing of screening conveyer belt
When, protective plate can prevent dropping for material, so as to ensure being smoothed out for screening.
Further, also including telescopic interface channel, the two ends of interface channel are equipped with bayonet socket；Interface channel passes through
Bayonet socket is placed in driving drive and rotates and between two power transmission shafts of end.
In actually used process, the material of screening has a lot, such as Chinese chestnut, walnut and peanut etc., various materials it is big
It is small different, it is necessary to the rank of classification also answers concrete condition to make a concrete analysis of, and vibration screening portion is all replaced when screening every time
Point, not only lose time, and cost is improve, therefore interface channel is designed, the screening plant includes multiple vibration screening portions
Point, when the different material of classification is run into, then interface channel being placed on the power transmission shaft of end, material then can be across not
The vibration screening part of screening is needed to be directly entered in the vibration screening part that can be screened, it is both time-consuming, manufacture is saved again
Cost.It should be noted that the power transmission shaft for here being located in end refers to each screening conveyer belt material is transported from one end
To the other end, what end referred to is exactly the Chinese chestnut power transmission shaft that movement is eventually passed on a screening conveyer belt, that is, be proximate to next
The power transmission shaft of individual screening transmission tape beginning end.
Further, device for vibration screening is vibratory sieve, and vibratory sieve includes being provided with a piece of multiple vibration screening parts
Sieve plate or including being respectively arranged with a polylith sieve plate for vibration screening part.
Device for vibration screening can also use vibratory sieve in addition to can be using screening conveyer belt, can be using a sieve
Plate, comprising multiple vibration screening parts on the sieve plate, it would however also be possible to employ multiple sieve plates, is respectively arranged with vibration on each sieve plate
Screen fraction, the leakage slot size remained certainly on a vibration screening part is equal, between each vibration screening part
Leakage slot size it is different, on vibration screening part above leakage sieve aperture be less than on vibration screening part below
Leakage sieve aperture.When using vibratory sieve, the lower section of vibratory sieve can also set collecting tank, material channel, material storing room etc..
Further, also including the digital touch controlled platform of human-computer exchange, conveyer belt；The digital touch controlled platform of human-computer exchange is provided with
Vibration frequency control device and transfer rate control device；Conveyer belt is located at the top of the vibration screening part of initiating terminal.
The digital touch controlled platform of human-computer exchange is that vibration frequency control device is for controlling for controlling whole screening plant
The problem of the vibration speed of vibration screening part, vibrates faster, and the screening to material is more thorough, and transfer rate control device is used
The speed of material is conveyed in control vibration screening part, transfer rate and vibration frequency affect the quality of screening effect；Pass
It is for transporting material on vibration screening part to send band, it would however also be possible to employ material directly manually is placed in into shaking for initiating terminal
In dynamic screen fraction, naturally it is also possible to inclined chute as input.What the vibration screening part of initiating terminal referred to most starts
The part screened to material.
Beneficial effects of the present invention：Screened by by stock grading, not only increase operating efficiency, and ensure that thing
Material is accurately classified, and is easy to the later stage to be processed material, and uses plant equipment then to be gone back while efficiency is improved
Production cost is reduced, while also reducing dust pollution.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be attached to what is used needed for embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, thus be not construed as it is right
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is that the overall structure of the equipment for realizing stock grading screening technique that the embodiment of the present invention 1 is provided is illustrated
Figure；
Fig. 2 is the screening conveyer structure schematic diagram that the embodiment of the present invention 1 is provided；
Fig. 3 is that the overall structure of the equipment for realizing stock grading screening technique that the embodiment of the present invention 2 is provided is illustrated
Figure；
Fig. 4 is the internal structure schematic diagram of the screening conveyer belt that the embodiment of the present invention 2 is provided；
Fig. 5 is that second structure of the equipment for realizing stock grading screening technique that the embodiment of the present invention 2 is provided is shown
It is intended to；
Fig. 6 is the peace of the interface channel of the equipment for realizing stock grading screening technique that the embodiment of the present invention 2 is provided
Dress schematic diagram；
Fig. 7 is the side view of the interface channel that the embodiment of the present invention 2 is provided；
Fig. 8 is the front view that the embodiment of the present invention 2 provides interface channel；
Fig. 9 is that the overall structure of the equipment for realizing stock grading screening technique that the embodiment of the present invention 3 is provided is illustrated
Figure；
Figure 10 is the structural representation of the vibratory sieve that the embodiment of the present invention 3 is provided；
Figure 11 is that second structure of the equipment for realizing stock grading screening technique that the embodiment of the present invention 3 is provided is shown
It is intended to；
Figure 12 is second structural representation of the vibratory sieve that the embodiment of the present invention 3 is provided.
In figure：
Frame 401；Material storing room 402；Leakage sieve aperture 403；Screening conveyer belt 404；Drive 405；Vibration barrier 406；
Cam 407；Collecting tank 408；Material channel 409；Protective plate 500；Interface channel 501；Bayonet socket 502；Power transmission shaft 503；Vibratory sieve
504；The digital touch controlled platform 505 of human-computer exchange；Conveyer belt 506；Vibration frequency control device 507；Transfer rate control device
508。
Specific embodiment
The sizing screening to material is all mainly to rely on manpower at present, and this method can not be carried out material according to size
Accurately separate, it is impossible to meet the follow-up requirement that accurate processing is carried out to material；Occupied very by manpower screening needs simultaneously
Big space, can produce the manpower and venue cost of costliness, and substantial amounts of dust can be also produced in screening process, be unfavorable for environmental protection,
Also it is unfavorable for that labourer's is healthy, therefore existing screening technique not only screens uneven, and also production cost is higher.Pin
To above mentioned problem, the invention provides the method and its equipment of a kind of screening of stock grading, to improve above mentioned problem.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Present invention implementation generally described and illustrated in accompanying drawing herein
The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it need not be further defined and explained in subsequent accompanying drawing.
In the description of the invention, it is necessary to explanation, term " on ", D score, " left side ", " vertical ", the instruction such as " interior "
Orientation or position relationship are that, based on orientation shown in the drawings or position relationship, or the invention product is usually put when using
Orientation or position relationship, are for only for ease of the description present invention and simplify and describe, rather than indicate or imply signified device or
Element with specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
Embodiment 1, referring to figs. 1 to Fig. 2.
A kind of equipment for realizing the method for stock grading screening, including frame 401, device for vibration screening and storage dress
Put, device for vibration screening is arranged in frame 401, storage device includes multiple material storing rooms 402；Device for vibration screening includes
At least three vibration screening parts, are provided with Lou sieve aperture 403 on each vibration screening part, the leakage sieve on vibration screening part
The diameter in hole 403 is less than the diameter for leaking sieve aperture 403 on latter vibration screening part, and the lower section of each vibration screening part is equal
It is provided with a material storing room 402.
Lou sieve aperture 403 are equipped with each vibration screening part, the size phase of leakage sieve aperture 403 on each vibration screening part
Deng leakage sieve aperture between each vibration screening part 403 is different, and each vibration screening part is screened to material successively, vibrates
Leakage sieve aperture 403 diameter of screen fraction is always less than the latter diameter of leakage sieve aperture 403 of vibration screening part, actual screening process
It is such：First material is placed on the vibration screening part for most starting, less than the diameter of leakage sieve aperture 403 of the vibration screening part
Material then through leakage sieve aperture 403, into material storing room 402, more than the vibration screening part leakage sieve aperture 403 material
Then screened into next vibration screening part, until screening is completed, in actually used process, can be according to screening thing
The size and the number of vibration screening part of the diameter design leakage sieve aperture 403 of material.
Support is used to install each mechanical part, it would however also be possible to employ the form of cabinet, primarily to making whole device middle part
The arrangement of part is more in order and compact, is naturally also arranged on diverse location to realize part；Device for vibration screening is logical
Vibration realizing is crossed to the screening of material, vibration can be realized with various vibrating mechanisms, such as vibrator, and screening can use band
There are the various mechanisms of leakage sieve aperture 403, such as with the screening conveyer belt 404 of leakage sieve aperture 403, certain vibration screening part can also be used
One structure, such as vibratory sieve 504.
In the present embodiment, each vibration screening part includes vibrating mechanism, is provided with the screening conveyer belt of Lou sieve aperture 403
404 and with screening two drives 405 matching of conveyer belt 404, drive 405 is rotatably arranged in frame 401 and passes through
Motor drives, and the one end for screening conveyer belt 404 is arranged on the top of next screening conveyer belt 404 one end.
Drive 405 is arranged on support, realizes rotating by motor, and drive 405 is rotated and drives screening conveyer belt 404
Rotate, screening conveyer belt 404 is provided with Lou sieve aperture 403, after material is placed on screening conveyer belt 404, with screening conveyer belt 404
Move horizontally and up-down vibration, less than leakage the diameter of sieve aperture 403 material through leakage sieve aperture 403 enter storage room, more than leakage sieve
The material of the diameter of hole 403 is then as moving horizontally for screening conveyer belt 404 is transmitted into the next section of screening with leakage sieve aperture 403
Band 404, continues to screen, and the one end for screening conveyer belt 404 is arranged at the top of next screening conveyer belt 404 one end, so passes through
Crossing the material of screening could smoothly enter on next screening conveyer belt 404 in the presence of conveyer belt 404 is screened, while by
The drop of in the vertical direction between two screening conveyer belts 404, material enters next sieve from a screening conveyer belt 404
Selecting the process of conveyer belt 404 can occur vibration by a relatively large margin due to the drop, accelerate the process of screening, each screening transmission
Can also be in same level between band 404.
It should be noted that：The preferred servomotor of motor for driving drive 405 to rotate, servo-drive system is to make the position of object
Put, the output controlled volume such as orientation, state can follow input target (or set-point) any change automatic control system, and
Control speed can be made using servomotor, positional precision is very accurate, voltage signal can be converted into torque and rotating speed to drive
Dynamic control object, servo motor rotor rotating speed is controlled by input signal, and energy fast reaction, in automatic control system, is used as
Executive component, and with characteristics such as electromechanical time constant small, the linearity is high, pickup voltages, therefore can be real using servomotor
Now to the accurate control of the various states in the screening transfer rate of conveyer belt 404 and position etc., it is convenient and swift neatly realize it is right
The control of screening process.
Used as the preferred scheme of the present embodiment, vibrating mechanism includes polylith vibration barrier 406, each screening conveyer belt 404
Inside two ends be provided with vibration barrier 406, vibration barrier 406 is slided and is embedded in frame 401, and vibration barrier 406 is close to
The side of drive 405 is cambered surface.
Vibration barrier 406 is used to realize the vibration of screening conveyer belt 404, and the inside two ends of each screening conveyer belt 404 are equal
Vibration barrier 406 is provided with, is to ensure that entirely screening conveyer belt 404 is all vibration and realizes screening conveyer belt 404
Equably vibrate, could so screen the material of the rank is as much as possible, passed without leaving next screening
Send on band 404；It is then to prevent material from being sieved through leakage that vibration barrier 406 is designed as cambered surface near the side of drive 405
When hole 403 enters screening 404 inside of conveyer belt, because screening conveyer belt 404 is not only mobile but also vibrate, material can move to biography
The inner side of moving axis 503 and then the rotation to power transmission shaft 503 cause resistance in addition be stuck in power transmission shaft 503 and screening conveyer belt 404 it
Between, screening plant is caused to damage, vibration barrier 406 is designed as cambered surface near the side of drive 405, enter in material and sieve
During selecting the inside of conveyer belt 404, baffle plate 406 is vibrated between material and drive 405 and is separated, material would not be to transmission
The rotation of wheel 405 causes resistance, while when material is screened on conveyer belt 404 is screened, through the material for leaking sieve aperture 403 just
Will not enter between drive 405 and screening conveyer belt 404, drive 405 would not be also blocked, so as to efficiently avoid this
Problem.Vibrating mechanism is not limited to using vibration barrier 406, can be carried out using vibrator or the entirety of screening conveyer belt 404
Lower and side-to-side movement can also realize vibration.
Embodiment 2, reference picture 3 to Fig. 8.
In the present embodiment, vibrating mechanism also includes multiple cam mechanisms, and cam mechanism includes cam 407, every piece of vibration gear
406 points of plate is two vertically arranged parts, respectively top half and the latter half, and top half and the latter half are slided respectively
Dynamic to be embedded in frame 401, the side of the close drive 405 of top half is cambered surface, the close drive 405 of the latter half
Side be plane, cam 407 is arranged between the top half of baffle plate and the latter half.
During vibration barrier 406 moves up and down, in order to ensure that material will not fall into drive 405 and screening is transmitted
In gap with being formed between 404, the top half of vibration barrier 406 is designed as cambered surface, energy near the side of drive 405
It is effectively prevented from the gap that material is fallen between screening conveyer belt 404 and drive 405；But vibration barrier 406 is being close to
The side of drive 405 is cambered surface, and because vibration barrier 406 moves up and down, in motion process, drive 405 can hinder vibration
The up and down motion of baffle plate 406, in order to ensure the Oscillation Amplitude of screening conveyer belt 404, by vibration barrier, 406 points is upper and lower two portions
Point, cam 407 is arranged between, and during cam 407 is rotated, two parts of vibration barrier 406 are done upwards simultaneously
Or downward motion, it is designed by the contour line to cam 407, it is ensured that downward in the top half of vibration barrier 406
The obstruction of wheel 405 will not be transmitted during motion and then the latter half of vibration barrier 406 is not interfered with and moved downward, it is ensured that
The Oscillation Amplitude of screening conveyer belt 404, can as needed adjust the Oscillation Amplitude of vibration barrier 406.
Material enters material storing room 402 for convenience, and also including collecting tank 408, collecting tank 408 is located at screening conveyer belt
404 inside or lower section, each material storing room 402 is connected by material channel 409 with collecting tank 408 respectively.
Material is then passed through sieve through the top layer leakage sieve aperture 403 of screening conveyer belt 404 into after screening the inside of conveyer belt 404
Select conveyer belt 404 bottom leak sieve aperture 403, leakage sieve aperture 403 spread all over screening conveyer belt 404 on, therefore through leakage sieve aperture 403
Material need be collected together and could enter in storage room, and collect can material pass through screen conveyer belt 404 top layer
It is collected when leakage sieve aperture 403, it is also possible to received again after material leaks sieve aperture 403 through screening conveyer belt 404 two-layer
Collect, therefore collecting tank 408 can be designed in the inside or lower section of screening conveyer belt 404, designed in collecting tank 408 and passed in screening
Send when with 404 inside, material channel 409 can be designed as it is inclined, with screening conveyer belt 404 shape at an angle,
Material into collecting tank 408 is entered in storage room by the inclined material channel 409, when collecting tank 408 is designed in screening
When 404 lower section of conveyer belt, material channel 409 then can be designed as perpendicular to screening conveyer belt 404, and material passes through top layer
Just entered in storage room by material channel 409 with after the leakage sieve aperture 403 of bottom.
Material is particulate matter, and in order to avoid material slides during screening, the both sides of each screening conveyer belt 404 are equal
It is provided with protective plate 500.
Material enters next screening conveyer belt 404 from a screening conveyer belt 404, because screening conveyer belt 404 is to shake
Dynamic, the lateral edges that material unavoidably can be from screening conveyer belt 404 during vibration drop, therefore in order to ensure whole screening
Being smoothed out for process, sets protective plate 500, when material because vibration will be from screening in the both sides of each screening conveyer belt 404
When the edge of conveyer belt 404 slides, protective plate 500 can prevent dropping for material, so as to ensure being smoothed out for screening.
In order to realize the various combination of vibration screening part, also including telescopic interface channel 501, interface channel 501
Two ends be equipped with bayonet socket 502；Interface channel 501 is placed in driving drive 405 and rotates and positioned at the two of end by bayonet socket 502
Between root power transmission shaft 503.
In actually used process, the material of screening has a lot, such as Chinese chestnut, walnut and peanut etc., various materials it is big
It is small different, it is necessary to the rank of classification also answers concrete condition to make a concrete analysis of, and vibration screening portion is all replaced when screening every time
Point, not only lose time, and cost is improve, therefore interface channel 501 is designed, the screening plant includes multiple vibration screenings
, when the different material of classification is run into, be then placed on interface channel 501 on the power transmission shaft 503 of end by part, and material then may be used
It is directly entered in the vibration screening part that can be screened with across the vibration screening part that need not be screened, it is both time-consuming, and
Save manufacturing cost.It should be noted that the power transmission shaft 503 for here being located in end refers to each screening conveyer belt 404 inciting somebody to action
Material is transported to the other end from one end, and what end referred to is exactly the Chinese chestnut biography that movement is eventually passed on a screening conveyer belt 404
Moving axis 503, that is, be proximate to the power transmission shaft 503 of next screening initiating terminal of conveyer belt 404.
Embodiment 3, reference picture 9 to Figure 12.
In the present embodiment, device for vibration screening is vibratory sieve 504, and vibratory sieve 504 includes being provided with multiple vibration screening portions
Point one piece of sieve plate or including being respectively arranged with a polylith sieve plate for vibration screening part.
Device for vibration screening can also use vibratory sieve 504 in addition to can be using screening conveyer belt 404, can use
One sieve plate, comprising multiple vibration screening parts on the sieve plate, it would however also be possible to employ multiple sieve plates, is respectively provided with each sieve plate
There is vibration screening part, the leakage sieve aperture 403 remained certainly on a vibration screening part is equal in magnitude, each vibration screening
Leakage sieve aperture 403 between part is in different size, and the leakage sieve aperture 403 on vibration screening part above is less than shaking below
Leakage sieve aperture 403 in dynamic screen fraction.When using vibratory sieve 504, the lower section of vibratory sieve 504 can also set collecting tank
408th, material channel 409, material storing room 402 etc..
In order to quickly control screening plant, also including the digital touch controlled platform 505 of human-computer exchange, conveyer belt 506；Man-machine friendship
Change digital touch controlled platform 505 and be provided with vibration frequency control device 507 and transfer rate control device 508；Conveyer belt 506 is located at
The top of the vibration screening part of initiating terminal.
The digital touch controlled platform 505 of human-computer exchange is for controlling whole screening plant, vibration frequency control device 507 to use
In the problem of the vibration speed of control vibration screening part, vibrate faster, the screening to material is more thorough, transfer rate control
Device 508 is used for the speed for controlling vibration screening part to convey material, and transfer rate and vibration frequency affect screening effect
Quality；Conveyer belt 506 is for transporting material on vibration screening part, it would however also be possible to employ manually directly put material
In on the vibration screening part of initiating terminal, naturally it is also possible to inclined chute as input.The vibration screening portion of initiating terminal
Divide the part for most starting to screen material for referring to.
Beneficial effects of the present invention：Screened by by stock grading, not only increase operating efficiency, and ensure that thing
Material is accurately classified, and is easy to the later stage to be processed material, and uses plant equipment then to be gone back while efficiency is improved
Production cost is reduced, while also reducing dust pollution.
Embodiment 4, reference picture 1.
A kind of method of stock grading screening, comprises the following steps：
A. material is placed on vibration screening part, vibration screening part is at least three, each vibration screening part
On be provided with leakage sieve aperture, the diameter of the leakage sieve aperture on vibration screening part is less than the leakage sieve aperture on latter vibration screening part
Diameter；
B. vibration screening part is worked and advances with driving material great-jump-forward, and the material less than leakage sieve diameter is sieved through leakage
Hole is fallen in storage device, and the material more than leakage sieve diameter then enters on next vibration screening part；
C. repeat step b, until material is finished by the screening of last vibration screening part or entirely falls in storage
In device.
When material diameter is less than leakage sieve diameter, material can be through leakage sieve aperture；When material is with diameter greater than leakage sieve diameter
When, material then rest on Lou sieve aperture top, therefore in order to by material of different sizes according to particle diameter size classified with
Continuous processing, can only screen according to order from small to large to material after an action of the bowels, and it is small first to filter out diameter, and diameter is screened afterwards
Big, so as to realize step sizing.
The diameter of the leakage sieve aperture on vibration screening part is less than the diameter of the leakage sieve aperture on latter vibration screening part, than
As vibration screening part is at least three, we are selected as a example by three, then these three can be respectively small leakage sieve aperture vibration screening
Partly, middle leakage sieve aperture vibration screening part and big leakage sieve aperture vibration screening part, leakage sieve set on each vibration screening part
The diameter in hole is identical, and the diameter of the leakage sieve aperture between each vibration screening part is different, in the process of screening, diameter
Small leakage sieve aperture is first screened to material, therefore material is first placed on the small vibration screening part of Lou sieve diameter, less than leakage
The material of sieve diameter is then fallen into storage device through leakage sieve aperture, and the material more than leakage sieve diameter then enters next vibration
In screen fraction, last vibration screening part is continued until, now material may have been screened just, entirely fall in storage
In device, it is also possible to do not fall within storage device also, can be classified as a class, or vibration is set again if remaining
Screen fraction is screened, until entirely falling in storage device.Wherein vibration screening part is in addition to vibration, moreover it is possible to by material
Next vibration screening part is transported to from a vibration screening part, to realize step sizing, this method is not only practical, effect
Rate is high, and can accurately realize the screening to material, facilitates follow-up processing.
Actual operation process is such：Conveyer belt 506 is transported material on the vibration screening part as initiating terminal,
Can be screening conveyer belt 404, can be vibratory sieve 504, after first vibration screening part is screened to material, positioned at shaking
Material below dynamic screen fraction is fallen into material storing room 402, then enters next positioned at the material of vibration screening upper
Individual vibration screening part, proceeds screening, until material is finished or whole by the screening of last vibration screening part
Fall into material storing room 402.
Beneficial effects of the present invention：Screened by by stock grading, not only increase operating efficiency, and ensure that thing
Material is accurately classified, and is easy to the later stage to be processed material, and uses plant equipment then to be gone back while efficiency is improved
Production cost is reduced, while also reducing dust pollution.
The preferred embodiments of the present invention are these are only, is not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.All any modifications within the spirit and principles in the present invention, made,
Equivalent, improvement etc., should be included within the scope of the present invention.
Claims (7)
1. a kind of method that stock grading is screened, it is characterised in that comprise the following steps：
A. material is placed on vibration screening part, the vibration screening part is at least three, each described vibration screening
Leakage sieve aperture is provided with part, the diameter of the leakage sieve aperture on the vibration screening part is less than the latter vibratory sieve
Select the diameter of the leakage sieve aperture on part；Each described vibration screening part includes vibrating mechanism, is provided with the leakage sieve aperture
Screening conveyer belt and with screening two drives matching of conveyer belt, the drive be rotatably arranged in frame and
Driven by motor, one end of the screening conveyer belt is arranged on the top of next described screening conveyer belt one end；It is described to shake
Motivation structure includes polylith vibration barrier, and the inside two ends of each screening conveyer belt are provided with vibration barrier, the vibration
Barrier slides are embedded in the frame, and described vibration barrier is cambered surface near the side of the drive；The bobbing machine
Structure also includes multiple cam mechanisms, and the cam mechanism includes cam, and every piece of vibration barrier is divided into vertically arranged two
Part, respectively top half and the latter half, the top half and the latter half are slided be embedded in the machine respectively
On frame, the side of the close described drive of the top half is cambered surface, the close described drive of the latter half
Side is plane, and the cam is arranged between the top half of the baffle plate and the latter half；
B. the vibration screening part works and advances with driving the material great-jump-forward, less than the material of the leakage sieve diameter
Fallen in storage device through the leakage sieve aperture, the material more than the leakage sieve diameter then enters next vibratory sieve
Select on part；
C. repeat step b, until the material is finished or entirely fallen in by vibration screening part screening last described
In the storage device.
2. the equipment that a kind of stock grading is screened, it is characterised in that described including frame, device for vibration screening and storage device
Device for vibration screening is arranged in the frame, and the storage device includes multiple material storing rooms；The device for vibration screening
Including at least three vibration screening parts, leakage sieve aperture, the vibration screening portion are provided with each described vibration screening part
The diameter of the leakage sieve aperture on point less than the leakage sieve aperture on the latter vibration screening part diameter, described in each
A material storing room is provided with below vibration screening part；Each described vibration screening part include vibrating mechanism,
Two drives for being provided with the screening conveyer belt of the leakage sieve aperture and matching with the screening conveyer belt, the drive is rotated
It is arranged in the frame and is driven by motor, one end of the screening conveyer belt is arranged on next screening conveyer belt
The top of one end；The vibrating mechanism includes polylith vibration barrier, and the inside two ends of each screening conveyer belt are provided with
Vibration barrier, the vibration barrier is slided and is embedded in the frame, and described vibration barrier is near the side of the drive
It is cambered surface；The vibrating mechanism also includes multiple cam mechanisms, and the cam mechanism includes cam, every piece of vibration barrier point
It is two vertically arranged parts, respectively top half and the latter half, the top half and the latter half are distinguished
Slip is embedded in the frame, and the side of the close described drive of the top half is cambered surface, the latter half
It is plane near the side of the drive, the cam is arranged between the top half of the baffle plate and the latter half.
3. the equipment that stock grading according to claim 2 is screened, it is characterised in that also including collecting tank, the collection
Groove is located at the inside or lower section of the screening conveyer belt, and each described material storing room passes through material channel and the receipts respectively
Collection groove connection.
4. the equipment that stock grading according to claim 3 is screened, it is characterised in that the two of each screening conveyer belt
Side is equipped with protective plate.
5. the equipment that stock grading according to claim 4 is screened, it is characterised in that also logical including telescopic connection
Road, the two ends of the interface channel are equipped with bayonet socket；The interface channel is placed in the driving transmission rotation by the bayonet socket
Move and between two power transmission shafts of end.
6. the equipment that stock grading according to claim 2 is screened, it is characterised in that the device for vibration screening is vibration
Sieve, the vibratory sieve includes being provided with one piece of sieve plate of multiple vibration screening parts or including being respectively arranged with described in one
The polylith sieve plate of vibration screening part.
7. the equipment that stock grading as claimed in any of claims 2 to 6 is screened, it is characterised in that also including people
Machine exchanges digital touch controlled platform, conveyer belt；The digital touch controlled platform of human-computer exchange is provided with vibration frequency control device and transmission speed
Degree control device；The conveyer belt is located at the top of the vibration screening part of initiating terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510408913.1A CN104959303B (en) | 2015-07-13 | 2015-07-13 | A kind of method and its equipment of stock grading screening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510408913.1A CN104959303B (en) | 2015-07-13 | 2015-07-13 | A kind of method and its equipment of stock grading screening |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104959303A CN104959303A (en) | 2015-10-07 |
| CN104959303B true CN104959303B (en) | 2017-07-07 |
Family
ID=54213484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510408913.1A Expired - Fee Related CN104959303B (en) | 2015-07-13 | 2015-07-13 | A kind of method and its equipment of stock grading screening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104959303B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251701A (en) * | 2015-12-02 | 2016-01-20 | 吕萍华 | Fruit sorting and cleaning integrated machine |
| CN105251695A (en) * | 2015-12-02 | 2016-01-20 | 吕萍华 | Fruit screening machine |
| CN107352283B (en) * | 2017-09-02 | 2020-05-12 | 江苏煤科机电设备制造有限公司 | Raw coal conveying device |
| CN107716262A (en) * | 2017-11-08 | 2018-02-23 | 刘全义 | Guipure equals back the method that sieve carries out grain impurity-removing |
| CN108554763A (en) * | 2018-05-09 | 2018-09-21 | 哈尔滨理工大学 | Multistage ball sorting mechanism |
| CN109332145A (en) * | 2018-11-23 | 2019-02-15 | 滕冬华 | Mushroom screening installation and method |
| CN109648226A (en) * | 2019-01-21 | 2019-04-19 | 建科机械（天津）股份有限公司 | A kind of welding production line of reinforcing bar beam |
| CN110773412B (en) * | 2019-11-28 | 2024-03-05 | 湖北科技学院 | Sorting device for walnut in literature |
| CN111070471B (en) * | 2019-12-26 | 2021-07-23 | 茵莱力动(大庆)科技有限责任公司 | A kind of polyurethane general plastic extrusion granulation post-processing process |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201020445Y (en) * | 2007-04-05 | 2008-02-13 | 张志飞 | Eccentric oscillating screen |
| CN201516413U (en) * | 2009-09-14 | 2010-06-30 | 广东福利龙复合肥有限公司 | Vibration screening device |
| CN204842176U (en) * | 2015-07-13 | 2015-12-09 | 镇雄滇龙生态科技有限公司 | Equipment that material screened in grades |
-
2015
- 2015-07-13 CN CN201510408913.1A patent/CN104959303B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104959303A (en) | 2015-10-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104959303B (en) | A kind of method and its equipment of stock grading screening | |
| CN104984903B (en) | Powder vibrating screen used for ore extraction | |
| CN102921644B (en) | Turret test selector | |
| CN201565415U (en) | Finished tea separator | |
| CN106824811A (en) | A kind of color selector distribution device | |
| CN202893706U (en) | Test sorter for minimal type semiconductor devices | |
| CN103922122A (en) | Gravity-center-deviated material ordering vibration disk | |
| CN204842176U (en) | Equipment that material screened in grades | |
| CN206168752U (en) | Agricultural breeding sieving mechanism | |
| CN203855105U (en) | Flat material turnover sorting device | |
| CN109078840A (en) | A kind of Supplying Sieving Mechanism and its operating method | |
| CN205463132U (en) | Vibration plane dressing sieve is used to system face | |
| CN210753756U (en) | Rice processing buffer | |
| CN219723634U (en) | Vibration separating screen | |
| CN202232812U (en) | Plane circular screen machine | |
| CN216827185U (en) | A layered screening machine for biomass pellet raw materials | |
| CN107876394A (en) | A kind of screening plant | |
| CN210523094U (en) | Novel diamond micro-powder type selecting machine | |
| CN210935849U (en) | Cereal screening plant | |
| CN203855104U (en) | Irregular material sorting vibrating disc | |
| CN211613454U (en) | A shell screening device | |
| CN209810657U (en) | Diamond micropowder ultrasonic wave sieving mechanism | |
| CN217700119U (en) | Chip screening equipment | |
| CN107985966A (en) | Middle shadow shield arranging-in-row device | |
| CN106516810A (en) | Automatic feeding machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170707 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |