CN104959303A - Material classification screening method and device - Google Patents

Material classification screening method and device Download PDF

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Publication number
CN104959303A
CN104959303A CN201510408913.1A CN201510408913A CN104959303A CN 104959303 A CN104959303 A CN 104959303A CN 201510408913 A CN201510408913 A CN 201510408913A CN 104959303 A CN104959303 A CN 104959303A
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CN
China
Prior art keywords
screening
vibration
conveyer belt
sieve aperture
vibration screening
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Granted
Application number
CN201510408913.1A
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Chinese (zh)
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CN104959303B (en
Inventor
高云
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Zhenxiong Dianlong Ecological Technology Co Ltd
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Zhenxiong Dianlong Ecological Technology Co Ltd
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Priority to CN201510408913.1A priority Critical patent/CN104959303B/en
Publication of CN104959303A publication Critical patent/CN104959303A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/10Screens in the form of endless moving bands
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/42Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4663Multi-layer screening surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B2201/00Details applicable to machines for screening using sieves or gratings
    • B07B2201/04Multiple deck screening devices comprising one or more superimposed screens

Abstract

The invention provides a material classification screening method and device and belongs to the field of nut processing. According to the material classification screening method, a plurality of vibration screening parts are used for screening materials in sequence. The device for achieving the material classification screening method comprises a rack, a vibration screening device and a storage device, wherein the vibration screening device is arranged on the rack, and the storage device comprises a plurality of material storage chambers. The method and device overcome the defects that an existing screening method is not high in screening precision, efficiency is low through screening measures, the production cost is high, and environment protection is not facilitated.

Description

A kind of method of stock grading screening and equipment thereof
Technical field
The present invention relates to nut process field, a kind of method of screening in particular to stock grading and equipment thereof.
Background technology
Current is all mainly rely on manpower to the sizing screening of material, and material can not be separated according to size by this method accurately, can not meet follow-up requirement material being carried out to accurately processing; Rely on manpower screening to need to occupy very large space simultaneously, expensive manpower and venue cost can be produced, in screening process, also can produce a large amount of dust, be unfavorable for environmental protection, also be unfavorable for that labourer's is healthy, therefore existing screening technique not only screens uneven, and production cost is higher.
Summary of the invention
A kind of method that the object of the present invention is to provide stock grading to screen and equipment thereof, to improve above-mentioned problem.
The present invention is achieved in that
A method for stock grading screening, comprises the following steps:
A. be placed on by material in vibration screening part, vibration screening part is at least three, and each vibration screening part is provided with leakage sieve aperture, and the diameter of the leakage sieve aperture in vibration screening part is less than the diameter of the leakage sieve aperture in a rear vibration screening part;
B. vibration screening some work advancing with driving material great-jump-forward, is less than the material leaking sieve diameter and falls in storage device through leaking sieve aperture, be greater than the material leaking sieve diameter and then enter in next vibration screening part;
C. step b is repeated, until material screens complete through last vibration screening part or all falls in storage device.
When material diameter is less than leakage sieve diameter, material can through leaking sieve aperture; When material diameter is greater than leakage sieve diameter, material then rests on Lou above sieve aperture, therefore in order to the material varied in size is carried out classifying so that follow-up processing according to particle diameter size, according to order from small to large, material can only be screened, first filter out diameter little, rear screening diameter is large, thus realizes step sizing.
The diameter of the leakage sieve aperture in vibration screening part is less than the diameter of the leakage sieve aperture in a rear vibration screening part, such as vibration screening part is at least three, we select three for example, so these three can be respectively little leakage sieve aperture vibration screening part, middle leakage sieve aperture vibration screening part and large leakage sieve aperture vibration screening part, the diameter of leakage sieve aperture set in each vibration screening part is identical, the diameter of the leakage sieve aperture between each vibration screening part is different, in the process of screening, the leakage sieve aperture that diameter is little first screens material, therefore material is first placed in the little vibration screening part of Lou sieve diameter, being less than the material leaking sieve diameter then falls in storage device through leaking sieve aperture, being greater than the material leaking sieve diameter then enters in next vibration screening part, be continued until last vibration screening part, now material may just screen, all fall in storage device, likely do not fall in storage device in addition yet, remainingly a class can be classified as if had, or arrange vibration screening part again to screen, until all fall in storage device.Wherein vibration screening part in addition to vibration, material can also be transported to next vibration screening part from a vibration screening part, to realize step sizing, this method not only practical, efficiency is high, and the screening that can realize accurately material, facilitate follow-up processing.
For realizing an equipment for the method for stock grading screening, comprise frame, device for vibration screening and storage device, device for vibration screening is arranged in frame, and storage device comprises multiple material storing room; Device for vibration screening comprises at least three vibration screening parts, each vibration screening part is provided with leakage sieve aperture, the diameter of the leakage sieve aperture in vibration screening part is less than the diameter of the leakage sieve aperture in a rear vibration screening part, and the below of each vibration screening part is provided with a material storing room.
Each vibration screening part is equipped with leakage sieve aperture, leakage slot size in each vibration screening part is equal, leakage sieve aperture between each vibration screening part is different, each vibration screening part is screened material successively, the leakage sieve diameter of vibration screening part is always less than the leakage sieve diameter of a rear vibration screening part, actual screening process is such: be first placed in by material in the vibration screening part started most, be less than the material of the leakage sieve diameter of this vibration screening part then through leaking sieve aperture, enter material storing indoor, the material being greater than the leakage sieve aperture of this vibration screening part then enters next vibration screening part and screens, until screened, in the actual process used, the size of sieve aperture and the number of vibration screening part can be leaked according to the diameter design of material screening.
Support, for installing each mechanical part, also can adopt the form of cabinet, mainly in order to make the layout of parts in whole device more in order with compact, is also be arranged on different positions to realize parts certainly; Device for vibration screening is by vibration realizing to the screening of material, vibration can realize with various vibrating mechanism, as vibrator, screening can adopt the various mechanisms with leaking sieve aperture, as the screening conveyer belt with leakage sieve aperture, certain vibration screening part also can by a structure, as vibratory sieve.
Further, two drives that each vibration screening part includes vibrating mechanism, is provided with the screening conveyer belt of Lou sieve aperture and matches with screening conveyer belt, drive rotates and to be arranged in frame and by driven by motor, one end of screening conveyer belt is arranged on the top of next screening conveyer belt one end.
Drive is arranged on support, realize rotating by motor, drive rotating drive screening conveyer belt rotates, screening conveyer belt is provided with leakage sieve aperture, material is placed in after on screening conveyer belt, along with moving horizontally and up-down vibration of screening conveyer belt, be less than the material leaking sieve diameter and enter apotheca through leaking sieve aperture, be greater than the material leaking sieve diameter and then enter along with screening moving horizontally of conveyer belt the screening conveyer belt that next length of tape has leakage sieve aperture, continue screening, one end of screening conveyer belt is arranged at the top of next screening conveyer belt one end, such material through screening could enter on next screening conveyer belt smoothly under the effect of screening conveyer belt, simultaneously due to the drop of in the vertical direction between two screening conveyer belts, the vibration that the process that material enters next screening conveyer belt from a screening conveyer belt can occur by a relatively large margin due to this drop, accelerate the process of screening, also can be in same level between each screening conveyer belt.
It should be noted that: drive the preferred servomotor of motor that drive rotates, servo-drive system is the position making object, orientation, states etc. export the automatic control system that controlled volume can follow any change of input target (or set-point), and adopt servomotor can make control rate, positional precision is very accurate, voltage signal can be converted into torque and rotational speed with drived control object, servo motor rotor rotating speed controls by input signal, and energy fast reaction, in automatic control system, as executive component, and it is little to have electromechanical time constant, the linearity is high, the characteristics such as pickup voltage, therefore employing servomotor can realize the accurate control to various state such as screening conveyer belt transfer rate and position etc., the convenient and swift control achieved neatly screening process.
Further, vibrating mechanism comprises polylith vibration barrier, and the two ends, inside of each screening conveyer belt are provided with vibration barrier, and vibration barrier is slided and is embedded in frame, and vibration barrier is cambered surface near the side of drive.
Vibration barrier is for realizing the vibration of screening conveyer belt, the two ends, inside of each screening conveyer belt are provided with vibration barrier, to ensure that whole screening conveyer belt is all that vibration and realization screening conveyer belt vibrate equably, could to screen as much as possible for the material of this rank like this, and can not leave on next one screening conveyer belt, vibration barrier is designed to cambered surface near the side of drive be then to prevent material when entering screening conveyer belt inside through leakage sieve aperture, because screening conveyer belt is not only mobile but also vibrate, material can move to the inner side of power transmission shaft and then cause resistance to be even stuck between power transmission shaft and screening conveyer belt to the rotation of power transmission shaft, damage is caused to screening plant, vibration barrier is designed to cambered surface near the side of drive, enter in the process of screening conveyer belt inside at material, separated by vibration barrier between material and drive, material would not cause resistance to the rotation of drive, in material screens on screening conveyer belt simultaneously, would not enter drive and screening conveyer belt through the material leaking sieve aperture, also drive would not be blocked, thus efficiently avoid this problem.
Further, vibrating mechanism also comprises multiple cam mechanism, cam mechanism comprises cam, every block vibration barrier is divided into vertical two parts arranged, be respectively the first half and the latter half, the first half and the latter half are slided respectively and are embedded in frame, and the side of the close drive of the first half is cambered surface, the side of the close drive of the latter half is plane, and cam is arranged between the first half of baffle plate and the latter half.
In the process that vibration barrier moves up and down, in order to ensure that material can not to fall between drive and screening conveyer belt in the gap that formed, the first half of vibration barrier is designed to cambered surface near the side of drive, can effectively avoids material to fall into the gap of screening between conveyer belt and drive, but vibration barrier is cambered surface in the side near drive, because vibration barrier moves up and down, in motion process, drive can hinder moving up and down of vibration barrier, in order to ensure the Oscillation Amplitude screening conveyer belt, vibration barrier is divided into upper and lower two parts, cam is arranged between the two, in the process that cam rotates, two parts of vibration barrier are done upwards or downward motion simultaneously, by designing the outline line of cam, ensure can not be transmitted wheel obstruction in the process moved downward in the first half of vibration barrier and then vibration barrier the latter half can not be had influence on to move downward, ensure that the Oscillation Amplitude of screening conveyer belt, the Oscillation Amplitude of vibration barrier can be regulated as required.
Further, also comprise feeder, feeder is positioned at inside or the below of screening conveyer belt, and each material storing room is communicated with feeder respectively by material channel.
Material leaks sieve aperture through the top layer of screening conveyer belt, sieve aperture is leaked through the bottom of screening conveyer belt again after entering screening conveyer belt inside, leaking sieve aperture spreads all on screening conveyer belt, therefore need to be collected together just to enter in apotheca through the material leaking sieve aperture, and collect and can collect when the top layer leakage sieve aperture of material through screening conveyer belt, also can collect again after material is through the two-layer leakage sieve aperture of screening conveyer belt, therefore feeder can design in the inside of screening conveyer belt or below, in feeder design when the inside of screening conveyer belt, material channel can be designed as inclination, with screening conveyer belt shape at an angle, the material entering feeder enters in apotheca by the material channel of this inclination, when feeder design is when screening below conveyer belt, material channel then to can be designed as perpendicular to screening conveyer belt, material is just entered in apotheca by material channel after passing 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 can drop from the lateral edges of screening conveyer belt unavoidably in the process of vibration, therefore in order to ensure carrying out smoothly of whole screening process, in the both sides of each screening conveyer belt, protective plate is set, when material because of vibration will from screening conveyer belt edge landing time, protective plate can stop dropping of material, thus ensure screening carry out smoothly.
Further, also comprise telescopic interface channel, the two ends of interface channel are equipped with bayonet socket; Interface channel by bayonet socket be placed in drive drive rotate and between two power transmission shafts of end.
In the actual process used, the material of screening has a lot, such as Chinese chestnut, walnut and peanut etc., various material in different size, the rank of classification is needed also to answer concrete condition to make a concrete analysis of, and when screening, all replace vibration screening part at every turn, not only lose time, and improve cost, therefore interface channel is designed, this screening plant comprises multiple vibration screening part, when running into the different material of classification, then being placed in by interface channel is positioned on the power transmission shaft of end, material then can stride across does not need the vibration screening part of screening directly to enter in the vibration screening part that can screen, both saved time, save manufacturing cost again.It should be noted that, here the power transmission shaft being positioned at end refers to, material is transported to the other end from one end by each screening conveyer belt, and what end referred to is exactly Chinese chestnut mobile power transmission shaft eventually passed on a screening conveyer belt, is namely the power transmission shaft near next screening conveyer belt initiating terminal.
Further, device for vibration screening is vibratory sieve, and vibratory sieve comprises one piece of sieve plate being provided with multiple vibration screening part or comprises the polylith sieve plate being respectively arranged with a vibration screening part.
Device for vibration screening is except can adopting screening conveyer belt, vibratory sieve can also be adopted, a sieve plate can be adopted, this sieve plate comprises multiple vibration screening part, also multiple sieve plate can be adopted, each sieve plate is respectively arranged with vibration screening part, certainly the leakage slot size remained in a vibration screening part is equal, leakage slot size between each vibration screening part is different, and the leakage sieve aperture in the vibration screening part is above less than the leakage sieve aperture in vibration screening part below.When adopting vibratory sieve, the below of vibratory sieve also can arrange feeder, material channel, material storing room etc.
Further, the digital touch controlled platform of human-computer exchange, conveyer belt is also comprised; The digital touch controlled platform of human-computer exchange is provided with vibration frequency control device and transfer rate control device; Conveyer belt is positioned at the top of the vibration screening part of initiating terminal.
The digital touch controlled platform of human-computer exchange is for controlling whole screening plant, vibration frequency control device is for controlling the problem of the vibration speed of vibration screening part, vibrate faster, more thorough to the screening of material, transfer rate control device is for controlling the speed of vibration screening part convey materials, and transfer rate and vibration frequency affect the quality of screening effect; Conveyer belt, for transporting material to vibration screening part, also can adopt and is manually directly placed in by material in the vibration screening part of initiating terminal, can certainly with the chute tilted as input.The part starting that material is screened most that the vibration screening part of initiating terminal refers to.
Beneficial effect of the present invention: by stock grading is screened, not only increase operating efficiency, and ensure that material high precision is classified, being convenient to the later stage processes material, adopt plant equipment then while raising the efficiency, to also reduce production cost, also reduce dust pollution simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present invention, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
The overall structure schematic diagram of the equipment for realizing stock grading screening technique that Fig. 1 provides for the embodiment of the present invention 1;
The screening conveyer structure schematic diagram that Fig. 2 provides for the embodiment of the present invention 1;
The overall structure schematic diagram of the equipment for realizing stock grading screening technique that Fig. 3 provides for the embodiment of the present invention 2;
The internal structure schematic diagram of the screening conveyer belt that Fig. 4 provides for the embodiment of the present invention 2;
The second structural representation of the equipment for realizing stock grading screening technique that Fig. 5 provides for the embodiment of the present invention 2;
The mounting means schematic diagram of the interface channel of the equipment for realizing stock grading screening technique that Fig. 6 provides for the embodiment of the present invention 2;
The side view of the interface channel that Fig. 7 provides for the embodiment of the present invention 2;
Fig. 8 provides the front view of interface channel for the embodiment of the present invention 2;
The overall structure schematic diagram of the equipment for realizing stock grading screening technique that Fig. 9 provides for the embodiment of the present invention 3;
The structural representation of the vibratory sieve that Figure 10 provides for the embodiment of the present invention 3;
The second structural representation of the equipment for realizing stock grading screening technique that Figure 11 provides for the embodiment of the present invention 3;
The second structural representation of the vibratory sieve that Figure 12 provides for the embodiment of the present invention 3.
In figure:
Frame 401; Material storing room 402; Leak sieve aperture 403; Screening conveyer belt 404; Drive 405; Vibration barrier 406; Cam 407; Feeder 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.
Detailed description of the invention
Current is all mainly rely on manpower to the sizing screening of material, and material can not be separated according to size by this method accurately, can not meet follow-up requirement material being carried out to accurately processing; Rely on manpower screening to need to occupy very large space simultaneously, expensive manpower and venue cost can be produced, in screening process, also can produce a large amount of dust, be unfavorable for environmental protection, also be unfavorable for that labourer's is healthy, therefore existing screening technique not only screens uneven, and production cost is higher.For the problems referred to above, the invention provides method and the equipment thereof of a kind of stock grading screening, to improve the problems referred to above.
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.The assembly of the embodiment of the present invention describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.
Therefore, below to the detailed description of the embodiments of the invention provided in the accompanying drawings and the claimed scope of the present invention of not intended to be limiting, but selected embodiment of the present invention is only represented.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to define further it and explain in accompanying drawing subsequently.
In describing the invention, it should be noted that, term " on ", D score, " left side ", " vertically ", the orientation of the instruction such as " interior " or position relationship be based on orientation shown in the drawings or position relationship, or this invention product orientation of usually putting or position relationship when using, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
Embodiment 1, referring to figs. 1 through Fig. 2.
For realizing an equipment for the method for stock grading screening, comprise frame 401, device for vibration screening and storage device, device for vibration screening is arranged in frame 401, and storage device comprises multiple material storing room 402; Device for vibration screening comprises at least three vibration screening parts, each vibration screening part is provided with Lou sieve aperture 403, the diameter of the leakage sieve aperture 403 in vibration screening part is less than the diameter of the leakage sieve aperture 403 in a rear vibration screening part, and the below of each vibration screening part is provided with a material storing room 402.
Each vibration screening part is equipped with Lou sieve aperture 403, leakage sieve aperture 403 equal and opposite in direction in each vibration screening part, leakage sieve aperture 403 between each vibration screening part is different, each vibration screening part is screened material successively, leakage sieve aperture 403 diameter of vibration screening part is always less than leakage sieve aperture 403 diameter of a rear vibration screening part, actual screening process is such: be first placed in by material in the vibration screening part started most, be less than the material of leakage sieve aperture 403 diameter of this vibration screening part then through leaking sieve aperture 403, enter in material storing room 402, the material being greater than the leakage sieve aperture 403 of this vibration screening part then enters next vibration screening part and screens, until screened, in the actual process used, the size of sieve aperture 403 and the number of vibration screening part can be leaked according to the diameter design of material screening.
Support, for installing each mechanical part, also can adopt the form of cabinet, mainly in order to make the layout of parts in whole device more in order with compact, is also be arranged on diverse location to realize parts certainly; Device for vibration screening is by vibration realizing to the screening of material, vibration can realize with various vibrating mechanism, as vibrator, screening can adopt the various mechanisms with leaking sieve aperture 403, as the screening conveyer belt 404 with leakage sieve aperture 403, certain vibration screening part also can by a structure, as vibratory sieve 504.
In the present embodiment, two drives 405 that each vibration screening part includes vibrating mechanism, is provided with the screening conveyer belt 404 of Lou sieve aperture 403 and matches with screening conveyer belt 404, drive 405 rotates and to be arranged in frame 401 and by driven by motor, one end of screening conveyer belt 404 is arranged on the top of next screening conveyer belt 404 one end.
Drive 405 is arranged on support, realize rotating by motor, drive 405 rotating drive screening conveyer belt 404 rotates, screening conveyer belt 404 is provided with Lou sieve aperture 403, material is placed in after on screening conveyer belt 404, along with moving horizontally and up-down vibration of screening conveyer belt 404, be less than the material leaking sieve aperture 403 diameter and enter apotheca through leaking sieve aperture 403, be greater than the material leaking sieve aperture 403 diameter and then enter along with screening moving horizontally of conveyer belt 404 the screening conveyer belt 404 that next length of tape has leakage sieve aperture 403, continue screening, one end of screening conveyer belt 404 is arranged at the top of next screening conveyer belt 404 one end, such material through screening could enter on next screening conveyer belt 404 smoothly under the effect of screening conveyer belt 404, simultaneously due to the drop of in the vertical direction between two screening conveyer belts 404, the vibration that the process that material enters next screening conveyer belt 404 from a screening conveyer belt 404 can occur by a relatively large margin due to this drop, accelerate the process of screening, also can be in same level between each screening conveyer belt 404.
It should be noted that: drive the preferred servomotor of motor that drive 405 rotates, servo-drive system is the position making object, orientation, states etc. export the automatic control system that controlled volume can follow any change of input target (or set-point), and adopt servomotor can make control rate, positional precision is very accurate, voltage signal can be converted into torque and rotational speed with drived control object, servo motor rotor rotating speed controls by input signal, and energy fast reaction, in automatic control system, as executive component, and it is little to have electromechanical time constant, the linearity is high, the characteristics such as pickup voltage, therefore employing servomotor can realize the accurate control to various state such as screening conveyer belt 404 transfer rate and position etc., the convenient and swift control achieved neatly screening process.
As the preferred version of the present embodiment, vibrating mechanism comprises polylith vibration barrier 406, the two ends, inside of each screening conveyer belt 404 are provided with vibration barrier 406, and vibration barrier 406 is slided and is embedded in frame 401, and vibration barrier 406 is cambered surface near the side of drive 405.
Vibration barrier 406 is for realizing the vibration of screening conveyer belt 404, the two ends, inside of each screening conveyer belt 404 are provided with vibration barrier 406, to ensure that whole screening conveyer belt 404 is all that vibration and realization screening conveyer belt 404 vibrate equably, could to screen as much as possible for the material of this rank like this, and can not leave on next one screening conveyer belt 404, vibration barrier 406 is designed to cambered surface near the side of drive 405 be then to prevent material when entering screening conveyer belt 404 inside through leakage sieve aperture 403, because screening conveyer belt 404 is not only mobile but also vibrate, material can move to the inner side of power transmission shaft 503 and then cause resistance to be even stuck between power transmission shaft 503 and screening conveyer belt 404 to the rotation of power transmission shaft 503, damage is caused to screening plant, vibration barrier 406 is designed to cambered surface near the side of drive 405, enter in the process of screening conveyer belt 404 inside at material, separated by vibration barrier 406 between material and drive 405, material would not cause resistance to the rotation of drive 405, in material screens on screening conveyer belt 404 simultaneously, would not enter drive 405 and screening conveyer belt 404 through the material leaking sieve aperture 403, also drive 405 would not be blocked, thus efficiently avoid this problem.Vibrating mechanism is not limited to adopt vibration barrier 406, vibrator or screening conveyer belt 404 entirety can be adopted to carry out up and down and side-to-side movement also can realize vibrating.
Embodiment 2, with reference to Fig. 3 to Fig. 8.
In the present embodiment, vibrating mechanism also comprises multiple cam mechanism, cam mechanism comprises cam 407, every block vibration barrier 406 is divided into vertical two parts arranged, be respectively the first half and the latter half, the first half and the latter half are slided respectively and are embedded in frame 401, and the side of the close drive 405 of the first half is cambered surface, the side of the close drive 405 of the latter half is plane, and cam 407 is arranged between the first half of baffle plate and the latter half.
In the process that vibration barrier 406 moves up and down, in order to ensure that material can not fall in the gap of formation between drive 405 and screening conveyer belt 404, the first half of vibration barrier 406 is designed to cambered surface near the side of drive 405, can effectively avoids material to fall into the gap of screening between conveyer belt 404 and drive 405, but vibration barrier 406 is cambered surface in the side near drive 405, because vibration barrier 406 moves up and down, in motion process, drive 405 can hinder moving up and down of vibration barrier 406, in order to ensure the Oscillation Amplitude screening conveyer belt 404, vibration barrier 406 is divided into upper and lower two parts, cam 407 is arranged between the two, in the process that cam 407 rotates, two parts of vibration barrier 406 are done upwards or downward motion simultaneously, by designing the outline line of cam 407, ensure can not to be transmitted in the process moved downward in the first half of vibration barrier 406 wheel 405 to hinder and then vibration barrier 406 the latter half can not be had influence on and move downward, ensure that the Oscillation Amplitude of screening conveyer belt 404, the Oscillation Amplitude of vibration barrier 406 can be regulated as required.
Conveniently material enters material storing room 402, also comprises feeder 408, and feeder 408 is positioned at inside or the below of screening conveyer belt 404, and each material storing room 402 is communicated with feeder 408 respectively by material channel 409.
Material leaks sieve aperture 403 through the top layer of screening conveyer belt 404, sieve aperture 403 is leaked through the bottom of screening conveyer belt 404 again after entering screening conveyer belt 404 inside, leaking sieve aperture 403 spreads all on screening conveyer belt 404, therefore need to be collected together just to enter in apotheca through the material leaking sieve aperture 403, and collect and can collect when the top layer leakage sieve aperture 403 of material through screening conveyer belt 404, also can collect again after material is through the two-layer leakage sieve aperture 403 of screening conveyer belt 404, therefore feeder 408 can design in the inside of screening conveyer belt 404 or below, design when the inside of screening conveyer belt 404 at feeder 408, material channel 409 can be designed as inclination, with screening conveyer belt 404 shape at an angle, the material entering feeder 408 enters in apotheca by the material channel 409 of this inclination, when feeder 408 designs when screening below conveyer belt 404, material channel 409 can be designed as perpendicular to screening conveyer belt 404, material is just entered in apotheca by material channel 409 after passing the leakage sieve aperture 403 of top layer and bottom.
Material is particle, and in order to avoid material landing in the process of screening, the both sides of each screening conveyer belt 404 are equipped with protective plate 500.
Material enters next screening conveyer belt 404 from a screening conveyer belt 404, because screening conveyer belt 404 is vibrations, material can drop from the lateral edges of screening conveyer belt 404 unavoidably in the process of vibration, therefore in order to ensure carrying out smoothly of whole screening process, in the both sides of each screening conveyer belt 404, protective plate 500 is set, when material because of vibration will from screening conveyer belt 404 edge landing time, protective plate 500 can stop dropping of material, thus ensure screening carry out smoothly.
In order to realize the various combination of vibration screening part, also comprise telescopic interface channel 501, the two ends of interface channel 501 are equipped with bayonet socket 502; Interface channel 501 is placed in by bayonet socket 502 and drives drive 405 to rotate and between two power transmission shafts 503 of end.
In the actual process used, the material of screening has a lot, such as Chinese chestnut, walnut and peanut etc., various material in different size, the rank of classification is needed also to answer concrete condition to make a concrete analysis of, and when screening, all replace vibration screening part at every turn, not only lose time, and improve cost, therefore interface channel 501 is designed, this screening plant comprises multiple vibration screening part, when running into the different material of classification, then being placed in by interface channel 501 is positioned on the power transmission shaft 503 of end, material then can stride across does not need the vibration screening part of screening directly to enter in the vibration screening part that can screen, both saved time, save manufacturing cost again.It should be noted that, here the power transmission shaft 503 being positioned at end refers to, material is transported to the other end from one end by each screening conveyer belt 404, what end referred to is exactly Chinese chestnut mobile power transmission shaft 503 eventually passed on a screening conveyer belt 404, is namely the power transmission shaft 503 near next screening conveyer belt 404 initiating terminal.
Embodiment 3, with reference to Fig. 9 to Figure 12.
In the present embodiment, device for vibration screening is vibratory sieve 504, and vibratory sieve 504 comprises one piece of sieve plate being provided with multiple vibration screening part or comprises the polylith sieve plate being respectively arranged with a vibration screening part.
Device for vibration screening is except can adopting screening conveyer belt 404, vibratory sieve 504 can also be adopted, a sieve plate can be adopted, this sieve plate comprises multiple vibration screening part, also multiple sieve plate can be adopted, each sieve plate is respectively arranged with vibration screening part, certainly leakage sieve aperture 403 equal and opposite in direction in a vibration screening part is remained, leakage sieve aperture 403 between each vibration screening part is in different size, and the leakage sieve aperture 403 in the vibration screening part is above less than the leakage sieve aperture 403 in vibration screening part below.When employing vibratory sieve 504, the below of vibratory sieve 504 also can arrange feeder 408, material channel 409, material storing room 402 etc.
In order to control screening plant fast, also comprise the digital touch controlled platform 505 of human-computer exchange, conveyer belt 506; The digital touch controlled platform 505 of human-computer exchange is provided with vibration frequency control device 507 and transfer rate control device 508; Conveyer belt 506 is positioned at the top of the vibration screening part of initiating terminal.
The digital touch controlled platform of human-computer exchange 505 is for controlling whole screening plant, vibration frequency control device 507 is for controlling the problem of the vibration speed of vibration screening part, vibrate faster, more thorough to the screening of material, transfer rate control device 508 is for controlling the speed of vibration screening part convey materials, and transfer rate and vibration frequency affect the quality of screening effect; Conveyer belt 506, for transporting material to vibration screening part, also can adopt and is manually directly placed in by material in the vibration screening part of initiating terminal, can certainly with the chute tilted as input.The part starting that material is screened most that the vibration screening part of initiating terminal refers to.
Beneficial effect of the present invention: by stock grading is screened, not only increase operating efficiency, and ensure that material high precision is classified, being convenient to the later stage processes material, adopt plant equipment then while raising the efficiency, to also reduce production cost, also reduce dust pollution simultaneously.
Embodiment 4, with reference to Fig. 1.
A method for stock grading screening, comprises the following steps:
A. be placed on by material in vibration screening part, vibration screening part is at least three, and each vibration screening part is provided with leakage sieve aperture, and the diameter of the leakage sieve aperture in vibration screening part is less than the diameter of the leakage sieve aperture in a rear vibration screening part;
B. vibration screening some work advancing with driving material great-jump-forward, is less than the material leaking sieve diameter and falls in storage device through leaking sieve aperture, be greater than the material leaking sieve diameter and then enter in next vibration screening part;
C. step b is repeated, until material screens complete through last vibration screening part or all falls in storage device.
When material diameter is less than leakage sieve diameter, material can through leaking sieve aperture; When material diameter is greater than leakage sieve diameter, material then rests on Lou above sieve aperture, therefore in order to the material varied in size is carried out classifying so that follow-up processing according to particle diameter size, according to order from small to large, material can only be screened, first filter out diameter little, rear screening diameter is large, thus realizes step sizing.
The diameter of the leakage sieve aperture in vibration screening part is less than the diameter of the leakage sieve aperture in a rear vibration screening part, such as vibration screening part is at least three, we select three for example, so these three can be respectively little leakage sieve aperture vibration screening part, middle leakage sieve aperture vibration screening part and large leakage sieve aperture vibration screening part, the diameter of leakage sieve aperture set in each vibration screening part is identical, the diameter of the leakage sieve aperture between each vibration screening part is different, in the process of screening, the leakage sieve aperture that diameter is little first screens material, therefore material is first placed in the little vibration screening part of Lou sieve diameter, being less than the material leaking sieve diameter then falls in storage device through leaking sieve aperture, being greater than the material leaking sieve diameter then enters in next vibration screening part, be continued until last vibration screening part, now material may just screen, all fall in storage device, likely do not fall in storage device in addition yet, remainingly a class can be classified as if had, or arrange vibration screening part again to screen, until all fall in storage device.Wherein vibration screening part in addition to vibration, material can also be transported to next vibration screening part from a vibration screening part, to realize step sizing, this method not only practical, efficiency is high, and the screening that can realize accurately material, facilitate follow-up processing.
Actual operation process is such: conveyer belt 506 transports material in the vibration screening part as initiating terminal, it can be screening conveyer belt 404, it can be vibratory sieve 504, after first vibration screening part is screened material, the material being positioned at vibration screening beneath portions falls into material storing room 402, the material being positioned at vibration screening upper then enters next vibration screening part, proceed screening, until material screens complete through last vibration screening part or all falls in material storing room 402.
Beneficial effect of the present invention: by stock grading is screened, not only increase operating efficiency, and ensure that material high precision is classified, being convenient to the later stage processes material, adopt plant equipment then while raising the efficiency, to also reduce production cost, also reduce dust pollution simultaneously.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. a method for stock grading screening, is characterized in that, comprise the following steps:
A. material is placed in vibration screening part, described vibration screening part is at least three, each described vibration screening part is provided with leakage sieve aperture, and the diameter of the described leakage sieve aperture in described vibration screening part is less than the diameter of the described leakage sieve aperture in a rear described vibration screening part;
B. described vibration screening some work advancing with driving described material great-jump-forward, the material being less than described leakage sieve diameter falls in storage device through described leakage sieve aperture, and the material being greater than described leakage sieve diameter then enters in next described vibration screening part;
C. step b is repeated, until described material screens complete through vibration screening part described in last or all falls in described storage device.
2. an equipment for stock grading screening, it is characterized in that, comprise frame, device for vibration screening and storage device, described device for vibration screening is arranged in described frame, and described storage device comprises multiple material storing room; Described device for vibration screening comprises at least three vibration screening parts, each described vibration screening part is provided with leakage sieve aperture, the diameter of the described leakage sieve aperture in described vibration screening part is less than the diameter of the described leakage sieve aperture in a rear described vibration screening part, and the below of each described vibration screening part is provided with a material storing room.
3. the equipment of stock grading screening according to claim 2, it is characterized in that, two drives that each described vibration screening part includes vibrating mechanism, is provided with the screening conveyer belt of described leakage sieve aperture and matches with described screening conveyer belt, described drive rotates and to be arranged in described frame and by driven by motor, one end of described screening conveyer belt is arranged on the top of next described screening conveyer belt one end.
4. the equipment of stock grading screening according to claim 3, it is characterized in that, described vibrating mechanism comprises polylith vibration barrier, the two ends, inside of each described screening conveyer belt are provided with vibration barrier, described vibration barrier is slided and is embedded in described frame, and described vibration barrier is cambered surface near the side of described drive.
5. the equipment of stock grading screening according to claim 4, it is characterized in that, described vibrating mechanism also comprises multiple cam mechanism, described cam mechanism comprises cam, vibration barrier described in every block is divided into vertical two parts arranged, be respectively the first half and the latter half, described the first half and described the latter half are slided respectively and are embedded in described frame, the side of the close described drive of described the first half is cambered surface, the side of the close described drive of described the latter half is plane, between the first half that described cam is arranged on described baffle plate and the latter half.
6. the equipment of stock grading screening according to claim 5, it is characterized in that, also comprise feeder, described feeder is positioned at inside or the below of described screening conveyer belt, and each described material storing room is communicated with described feeder respectively by material channel.
7. the equipment of stock grading screening according to claim 6, it is characterized in that, the both sides of each described screening conveyer belt are equipped with protective plate.
8. the equipment of stock grading screening according to claim 7, it is characterized in that, also comprise telescopic interface channel, the two ends of described interface channel are equipped with bayonet socket; Described interface channel is placed in by described bayonet socket and drives described drive to rotate and between two power transmission shafts of end.
9. the equipment of stock grading screening according to claim 2, it is characterized in that, described device for vibration screening is vibratory sieve, and described vibratory sieve comprises one piece of sieve plate being provided with multiple described vibration screening part or comprises the polylith sieve plate being respectively arranged with a described vibration screening part.
10. the equipment of stock grading screening as claimed in any of claims 2 to 8, is characterized in that, also comprise 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; Described conveyer belt is positioned at the top of the described vibration screening part of initiating terminal.
CN201510408913.1A 2015-07-13 2015-07-13 A kind of method and its equipment of stock grading screening Active CN104959303B (en)

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* Cited by examiner, † Cited by third party
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
CN107352283A (en) * 2017-09-02 2017-11-17 张四通 A kind of raw coal conveying device
CN111070471A (en) * 2019-12-26 2020-04-28 张良芹 Post-treatment process for extrusion granulation of general polyurethane plastic

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CN201516413U (en) * 2009-09-14 2010-06-30 广东福利龙复合肥有限公司 Vibrating and 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

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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 Vibrating and 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

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* Cited by examiner, † Cited by third party
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
CN107352283A (en) * 2017-09-02 2017-11-17 张四通 A kind of raw coal conveying device
CN111070471A (en) * 2019-12-26 2020-04-28 张良芹 Post-treatment process for extrusion granulation of general polyurethane plastic

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