CN108273723A - A kind of agricultural breeding seed screening plant - Google Patents

A kind of agricultural breeding seed screening plant Download PDF

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Publication number
CN108273723A
CN108273723A CN201810043426.3A CN201810043426A CN108273723A CN 108273723 A CN108273723 A CN 108273723A CN 201810043426 A CN201810043426 A CN 201810043426A CN 108273723 A CN108273723 A CN 108273723A
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CN
China
Prior art keywords
sieve plate
crosshead
sliding panel
seed
block
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Granted
Application number
CN201810043426.3A
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Chinese (zh)
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CN108273723B (en
Inventor
储昭汉
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Individual
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    • 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
    • B07B1/282Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens their jigging movement being a closed or open curvilinear path in a plane perpendicular to the plane of the screen and parrallel or transverse to the direction of conveyance
    • 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

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Pretreatment Of Seeds And Plants (AREA)

Abstract

The invention discloses a kind of agricultural breeding seed screening plants, including crosshead, the crosshead bottom is installed with collecting vessel, it is horizontal in crosshead to be equipped with sieve plate, it is fixedly connected with limit spring between sieve plate end and crosshead inner wall, guide rod upper end is installed with limit geosynclinal block, limits in geosynclinal block and offers limiting groove, drawstring is located in limiting groove;The vibrations of sieve plate are realized in the rotation of cam in the present invention, the vertical tremor of sieve plate is realized in the rotation of runner, and then realize the two-way composite vibrating of sieve plate, the seed promoted on sieve plate quickly sieves, first sliding panel and the second sliding panel can be intermittent while sieve plate sieves seed opposite back movement, and then it realizes and expects on sieve plate under the seed intermittence in storage vat, on the one hand seed undue concentration is avoided to be gathered on sieve plate and cause screening difficult, it can guarantee the screening efficiency of seed, another effect for conveniently realizing automatic blanking, substantially reduce the amount of labour.

Description

A kind of agricultural breeding seed screening plant
Technical field
The present invention relates to agricultural machinery technological field, specifically a kind of agricultural breeding seed screening plant.
Background technology
Agricultural is the growth-development law using animals and plants, and the industry of product is obtained by artificial culture.Agricultural belongs to The primary industry, the science for studying agricultural is agronomy.The subject of labour of agricultural is lived animals and plants, and the product of acquisition is plant Object itself.Agricultural provides the basic product of the support development of the national economy and development.Agricultural refers to an important production in national economy Industry department is the department using land resource as production object, it is by cultivating animals and plants product to produce food and industry The industry of raw material.Agricultural belongs to the primary industry.The department that plant development is carried out using land resource is planting industry, using on soil What water space carried out aquaculture is aquatic products industry, is called fishery, and the department of harvest of forest trees is cultivated using land resource, is woods Industry, is cultivated using land resource or directly utilize meadow Developing Animal is animal husbandry.These products add on a small scale Work or making are sideline productions.They are all the organic components of agricultural.These landscapes or place resource advantage are carried out Develop and show sight-seeing agriculture, also known as leisure agriculture.This is to be generated as the free time of people is more than needed the new period Novel agricultural form.
Existing agricultural needs to sieve the size of seed with seed before collection or breeding, needs according to seed Size distinguish the quality of seed, to carry out the division of quality grade to seed, current seed screening plant is to screen for seeds Component velocity is slower, and screening efficiency is relatively low, cannot meet current agricultural breeding demand.
Invention content
The purpose of the present invention is to provide a kind of agricultural breeding seed screening plants, to solve to carry in above-mentioned background technology The problem of going out.
To achieve the above object, the present invention provides the following technical solutions:
A kind of agricultural breeding seed screening plant, including crosshead, the crosshead bottom are installed with collecting vessel, operation It is horizontal in frame to be equipped with sieve plate, limit spring is fixedly connected between sieve plate end and crosshead inner wall, the sieve plate upper surface is perpendicular Straight to be installed with coaming plate, coaming plate is ring platy structure;Sieve plate bottom right bottom surface is installed with abutting plate, crosshead vertically Upper rotary type be equipped with abuts plate abut cam;The crosshead lower rotation formula is equipped with runner, and wheel surface circumferential direction is fixed Protruding block is installed, is installed with stop collar block in the crosshead inner left wall vertically, vertical sliding formula in stop collar block It is equipped with push rod, push rod lower end rotary type is equipped with the idler wheel abutted with protruding block, and the push rod upper end is installed with positioned at sieve Percussion block below plate is arranged with socket spring on the push rod, and socket spring one end, which is fixed on, taps block bottom surface, is socketed bullet The spring other end is fixed on stop collar block upper surface;Level is installed with guide rod on the crosshead side wall, is slided on guide rod Dynamic formula is arranged with lateral sliding sleeve, and lateral sliding sleeve front is installed with longitudinal sliding sleeve vertically, and vertical sliding formula is set in longitudinal sliding sleeve There are guide rod, lower end of the guide rod to be fixed on sieve plate upper surface, guide rod surface is arranged with longitudinal resetting spring, consolidates vertically in the crosshead Dingan County is equipped with the storage vat being located at right over sieve plate, the first sliding panel that the horizontal slidingtype in storage vat lower end is provided symmetrically and Second sliding panel, the first sliding panel and the second sliding panel opposite side abut against, and first sliding panel and the second sliding panel lean on Near operation frame madial wall one end is installed with postive stop baffle vertically, is fixedly connected between postive stop baffle and storage vat laterally multiple Position spring;Drawstring, guide rod upper end are respectively connected between first sliding panel and the second sliding panel end and crosshead madial wall It is installed with limit geosynclinal block, limits in geosynclinal block and offers limiting groove, drawstring is located in limiting groove.
Scheme as an improvement of the present invention:Being drivingly connected on the cam has driving motor, cam to be connected to abutting On plate right side wall.
Scheme as an improvement of the present invention:The longitudinal direction resetting spring upper end is fixed on longitudinal sliding sleeve bottom surface, indulges It is fixed on sieve plate upper surface to resetting spring lower end.
Scheme as an improvement of the present invention:The postive stop baffle is located at outside storage vat.
Scheme as an improvement of the present invention:The protruding block is spherical shape structure, and the quantity of protruding block is six.
Scheme as an improvement of the present invention:The collecting vessel is located at immediately below sieve plate.
Scheme as an improvement of the present invention:First sliding panel and the second sliding panel are platy structure.
Compared with prior art, the beneficial effects of the invention are as follows:
The vibrations of sieve plate are realized in the rotation of cam in the present invention, and the vertical tremor of sieve plate is realized in the rotation of runner, and then is realized The two-way composite vibrating of sieve plate, the seed promoted on sieve plate quickly sieve, and the first sliding panel and the second sliding panel can be in sieve plates Intermittent opposite back movement while screening to seed, and then realize and expect sieve plate under the seed intermittence in storage vat On, it on the one hand avoids seed undue concentration and is gathered on sieve plate and causes screening difficult, can guarantee the screening efficiency of seed, separately One conveniently realizes the effect of automatic blanking, substantially reduces the amount of labour.
Description of the drawings
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is the enlarged diagram in the portions A in Fig. 1;
Fig. 3 is the enlarged diagram in the portions B in Fig. 1;
Fig. 4 is the connection schematic top plan view that geosynclinal block and drawstring are limited in the present invention.
In figure:1- crossheads, 2- postive stop baffles, 3- transverse directions resetting spring, 4- storage vats, the first sliding panels of 5-, 6- second Sliding panel, 7- limit springs, 8- sieve plates, 9- cams, 10- abut plate, 11- collecting vessels, 12- coaming plates, 13- runners, 14- protrusions Block, 15- idler wheels, the longitudinal directions 16- resetting spring, 17- guide rods, the longitudinal directions 18- sliding sleeve, 19- transverse directions sliding sleeve, 20- guide rods, 21- limits Geosynclinal block, 22- drawstrings, 23- limiting grooves, 24- tap block, 25- sockets spring, 26- push rods, 27- stop collar blocks.
Specific implementation mode
The technical solution of this patent is described in more detail With reference to embodiment:
- 4 are please referred to Fig.1, peace is fixed in a kind of agricultural breeding seed screening plant, including crosshead 1,1 bottom of the crosshead It is horizontal in crosshead 1 to be equipped with sieve plate 8 equipped with collecting vessel 11, it is fixedly connected with limit between 1 inner wall of 8 end of sieve plate and crosshead Spring 7,8 upper surface of the sieve plate are installed with coaming plate 12 vertically, and coaming plate 12 is ring platy structure;8 bottom right bottom of the sieve plate Face is installed with vertically abuts plate 10, and rotary type is equipped with and the cam 9 that abuts plate 10 and abut on crosshead 1;The crosshead 1 Lower rotation formula is equipped with runner 13, and 13 surface circumferential direction of runner is installed with protruding block 14, is erected in 1 inner left wall of the crosshead It directly is installed with stop collar block 27, vertical sliding formula is equipped with push rod 26 in stop collar block 27, and 26 lower end rotary type of push rod is set There is the idler wheel 15 abutted with protruding block 14,26 upper end of the push rod is installed with the percussion block 24 positioned at 8 lower section of sieve plate, described Socket spring 25 is arranged on push rod 26,25 one end of socket spring, which is fixed on, taps 24 bottom surface of block, is socketed 25 other end of spring It is fixed on 27 upper surface of stop collar block;Level is installed with guide rod 17 on 1 side wall of the crosshead, is slided on guide rod 17 Formula is arranged with lateral sliding sleeve 19, and 19 front of lateral sliding sleeve is installed with longitudinal sliding sleeve 18, is slided vertically in longitudinal sliding sleeve 18 vertically Dynamic formula is equipped with guide rod 20, and 20 lower end of guide rod is fixed on 8 upper surface of sieve plate, and 20 surface of guide rod is arranged with longitudinal resetting spring 16, institute State the storage vat 4 being installed with vertically in crosshead 1 right over sieve plate 8, the horizontal slidingtype in 4 lower end of storage vat is equipped with pair Claim the first sliding panel 5 and the second sliding panel 6 of setting, the first sliding panel 5 and 6 opposite side of the second sliding panel abut against, described First sliding panel 5 and the second sliding panel 6 are installed with postive stop baffle 2, postive stop baffle vertically close to 1 madial wall one end of crosshead Lateral resetting spring 3 is fixedly connected between 2 and storage vat 4;First sliding panel, 5 and second sliding panel, 6 end and operation Drawstring 22 is respectively connected between 1 madial wall of frame, 20 upper end of guide rod is installed with limit geosynclinal block 21, limits and offered in geosynclinal block 21 Limiting groove 23, drawstring 22 are located in limiting groove 23.
The operation principle and application method of the present invention:
In use, the seed that will be sieved is added into storage vat 4, motor band moving cam 9 rotates, and cam 9 passes through abutting Plate 10 drives sieve plate 8 to move back and forth under the elastic acting force of limit spring 7, and runner 13 passes through motor-driven rotation, runner 13 It drives protruding block 14 to rotate, by idler wheel 15 while protruding block 14 rotates, push rod 26 is driven to make in the elasticity of socket spring 25 It firmly pumps down, when 14 top of protruding block is abutted with 15 bottom end of idler wheel, push rod 26 is upward along stop collar block 27 Sliding, socket 25 deformation drawstring of spring is elongated, and push rod 26 drives percussion block 24 to be tapped straight up to sieve plate 8, works as runner 13 when turning to idler wheel 15 between adjacent protrusion block 14, and socket spring 25 gradually restores former long, and socket spring 25 passes through drawing The dynamic block 24 that taps is moved down together with push rod 26, and the drive percussion block 24 that moves up and down of push rod 26 taps sieve plate 8, promotes Moving up and down for sieve plate 8, promotes the shaking of seed, accelerates the screening of seed;Moving up and down for sieve plate 8 drives guide rod 20 It moves up and down, guide rod 20 drives about 21 geosynclinal block of limit to move back and forth, and when limit geosynclinal block 21 moves up, limit geosynclinal block 21 is logical It crosses drawstring 22 and pulls the first sliding panel 5 and 6 back movement of the second sliding panel, 3 deformation of lateral resetting spring elongation, at this point, first Sliding panel 5 and 6 opposite side of the second sliding panel are located remotely from each other, and then form gap, and the seed in storage vat 4 is fallen across the gap On sieve plate 8, when guide rod 20 is moved down along longitudinal sliding sleeve 18, limit geosynclinal block 21 moves down, at this point, laterally resetting bullet Spring 3 gradually restores former long and drives the first sliding panel 5 and the second sliding panel 6 to move toward one another by postive stop baffle 2, first slides at this time Movable plate 5 and 6 opposite side of the second sliding panel abut, and seed stops falling in storage vat 4, the realization that pumps of guide rod 20 4 intermittence of storage vat is to seed blanking.
In conclusion the rotation of cam 9 realizes that the upper of sieve plate 8 is realized in the vibrations of sieve plate 8, the rotation of runner 13 in the present invention Lower vibrations, and then the two-way composite vibrating of sieve plate 8 is realized, the seed promoted on sieve plate 8 quickly sieves, the first sliding panel 5 With the second sliding panel 6 can be intermittent while sieve plate 8 sieves seed opposite back movement, and then realize storage vat 4 Expect on sieve plate 8 under interior seed intermittence, on the one hand avoids seed undue concentration and be gathered on sieve plate 8 and cause screening tired Difficulty can guarantee that the screening efficiency of seed, another effect for conveniently realizing automatic blanking substantially reduce the amount of labour.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiment being appreciated that.

Claims (7)

1. a kind of agricultural breeding seed screening plant, including crosshead(1), which is characterized in that the crosshead(1)Bottom is solid Dingan County is equipped with collecting vessel(11), crosshead(1)It is interior horizontal equipped with sieve plate(8), sieve plate(8)End and crosshead(1)Between inner wall It is fixedly connected with limit spring(7), the sieve plate(8)Upper surface is installed with coaming plate vertically(12), coaming plate(12)For ring flat-plate Shape structure;The sieve plate(8)Bottom right bottom surface is installed with abutting plate vertically(10), crosshead(1)Upper rotary type be equipped with to Fishplate bar(10)The cam of abutting(9);The crosshead(1)Lower rotation formula is equipped with runner(13), runner(13)Surface circumferential direction is solid Dingan County is equipped with protruding block(14), the crosshead(1)Stop collar block is installed in inner left wall vertically(27), stop collar block (27)Interior vertical sliding formula is equipped with push rod(26), push rod(26)Lower end rotary type is equipped with and protruding block(14)The idler wheel of abutting (15), the push rod(26)Upper end is installed with positioned at sieve plate(8)The percussion block of lower section(24), the push rod(26)On be arranged There is socket spring(25), it is socketed spring(25)One end is fixed on percussion block(24)Bottom surface is socketed spring(25)The other end is fixed In stop collar block(27)Upper surface;The crosshead(1)Level is installed with guide rod on side wall(17), guide rod(17)On Slidingtype is arranged with lateral sliding sleeve(19), lateral sliding sleeve(19)Front is installed with longitudinal sliding sleeve vertically(18), longitudinal sliding sleeve (18)Interior vertical sliding formula is equipped with guide rod(20), guide rod(20)Lower end is fixed on sieve plate(8)Upper surface, guide rod(20)Surface is arranged There is longitudinal resetting spring(16), the crosshead(1)It is interior to be installed with vertically positioned at sieve plate(8)The storage vat of surface(4), Storage vat(4)The first sliding panel that the horizontal slidingtype in lower end is provided symmetrically(5)With the second sliding panel(6), the first sliding panel (5)With the second sliding panel(6)Opposite side abuts against, first sliding panel(5)With the second sliding panel(6)Close to crosshead (1)Madial wall one end is installed with postive stop baffle vertically(2), postive stop baffle(2)With storage vat(4)Between be fixedly connected with cross To resetting spring(3);First sliding panel(5)With the second sliding panel(6)End and crosshead(1)It is all connected between madial wall There is drawstring(22), guide rod(20)Upper end is installed with limit geosynclinal block(21), limit geosynclinal block(21)Inside offer limiting groove (23), drawstring(22)Positioned at limiting groove(23)It is interior.
2. agricultural breeding according to claim 1 seed screening plant, which is characterized in that the cam(9)Upper driving It is connected with driving motor, cam(9)It is connected to abutting plate(10)On right side wall.
3. agricultural breeding according to claim 1 seed screening plant, which is characterized in that the longitudinal direction resetting spring (16)Upper end is fixed on longitudinal sliding sleeve(18)Bottom surface, longitudinal resetting spring(16)Lower end is fixed on sieve plate(8)Upper surface.
4. agricultural breeding according to claim 1 seed screening plant, which is characterized in that the postive stop baffle(2)Position In storage vat(4)It is external.
5. agricultural breeding according to claim 1 seed screening plant, which is characterized in that the protruding block(14)For circle Chondritic, protruding block(14)Quantity be six.
6. agricultural breeding according to claim 1 seed screening plant, which is characterized in that the collecting vessel(11)It is located at Sieve plate(8)Underface.
7. agricultural breeding according to claim 1 seed screening plant, which is characterized in that first sliding panel(5) With the second sliding panel(6)It is platy structure.
CN201810043426.3A 2018-01-17 2018-01-17 Seed screening plant for agricultural breeding Active CN108273723B (en)

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Application Number Priority Date Filing Date Title
CN201810043426.3A CN108273723B (en) 2018-01-17 2018-01-17 Seed screening plant for agricultural breeding

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Application Number Priority Date Filing Date Title
CN201810043426.3A CN108273723B (en) 2018-01-17 2018-01-17 Seed screening plant for agricultural breeding

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CN108273723B CN108273723B (en) 2020-06-19

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110026335A (en) * 2019-04-24 2019-07-19 常州机电职业技术学院 A kind of feeding mechanism of discontinuous screening machine
CN110369130A (en) * 2019-07-25 2019-10-25 内江师范学院 A kind of building castoff integration sorting recyclable device
CN110538792A (en) * 2019-09-29 2019-12-06 吕浩 Energy-saving environment-friendly vibrating screen for producing new materials
CN111468398A (en) * 2020-05-11 2020-07-31 江苏振强机械科技股份有限公司 Novel efficient linear vibrating screen device
CN111482236A (en) * 2020-04-09 2020-08-04 杭州讹误科技有限公司 Can autosegregation grinder after grinding based on raw materials quality difference
CN111758443A (en) * 2020-07-21 2020-10-13 苑馨月 Agricultural planting educates seedling tray unloader
CN111940286A (en) * 2020-08-10 2020-11-17 段敏 Building construction is with swaing formula grit sieving mechanism
CN112008034A (en) * 2020-08-19 2020-12-01 溧阳市超强链条制造有限公司 Automatic screening device for chain rollers
CN112588586A (en) * 2020-11-26 2021-04-02 浙江格锐特包装材料有限公司 Avoid too much tealeaves packagine machine screening mechanism who influences quality of tealeaves sediment
CN114074069A (en) * 2021-11-16 2022-02-22 徐爱秀 Basalt screening installation for construction
CN114192404A (en) * 2021-11-24 2022-03-18 鹰潭市云探电子科技有限公司 Needle separating device capable of automatically separating and screening test needles with different diameters
CN115254335A (en) * 2022-07-18 2022-11-01 湖北敬达信伟建筑劳务有限公司 Dust protected dregs breaker

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CN205221837U (en) * 2015-12-04 2016-05-11 汝州市威德邦瓷业有限公司 Self -service pay -off of lining brick and forming device
CN206297790U (en) * 2016-11-24 2017-07-04 赣州市全标生物科技有限公司 A kind of infant's flour Quantitative dosing equipment
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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110026335B (en) * 2019-04-24 2020-02-21 常州机电职业技术学院 Feeding mechanism of discontinuous sieve separator
CN110026335A (en) * 2019-04-24 2019-07-19 常州机电职业技术学院 A kind of feeding mechanism of discontinuous screening machine
CN110369130A (en) * 2019-07-25 2019-10-25 内江师范学院 A kind of building castoff integration sorting recyclable device
CN110538792A (en) * 2019-09-29 2019-12-06 吕浩 Energy-saving environment-friendly vibrating screen for producing new materials
CN111482236B (en) * 2020-04-09 2021-10-08 上海汇融细胞科技有限公司 Can autosegregation grinder after grinding based on raw materials quality difference
CN111482236A (en) * 2020-04-09 2020-08-04 杭州讹误科技有限公司 Can autosegregation grinder after grinding based on raw materials quality difference
CN111468398A (en) * 2020-05-11 2020-07-31 江苏振强机械科技股份有限公司 Novel efficient linear vibrating screen device
CN111758443A (en) * 2020-07-21 2020-10-13 苑馨月 Agricultural planting educates seedling tray unloader
CN111940286A (en) * 2020-08-10 2020-11-17 段敏 Building construction is with swaing formula grit sieving mechanism
CN112008034A (en) * 2020-08-19 2020-12-01 溧阳市超强链条制造有限公司 Automatic screening device for chain rollers
CN112588586A (en) * 2020-11-26 2021-04-02 浙江格锐特包装材料有限公司 Avoid too much tealeaves packagine machine screening mechanism who influences quality of tealeaves sediment
CN114074069A (en) * 2021-11-16 2022-02-22 徐爱秀 Basalt screening installation for construction
CN114074069B (en) * 2021-11-16 2023-10-03 无锡镓宏建设有限公司 Basalt screening equipment for building construction
CN114192404A (en) * 2021-11-24 2022-03-18 鹰潭市云探电子科技有限公司 Needle separating device capable of automatically separating and screening test needles with different diameters
CN114192404B (en) * 2021-11-24 2022-10-04 鹰潭市云探电子科技有限公司 Needle separating device capable of automatically separating test needles with different diameters
CN115254335A (en) * 2022-07-18 2022-11-01 湖北敬达信伟建筑劳务有限公司 Dust protected dregs breaker

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