CN112024405A - Ball object size screening device - Google Patents
Ball object size screening device Download PDFInfo
- Publication number
- CN112024405A CN112024405A CN202010865875.3A CN202010865875A CN112024405A CN 112024405 A CN112024405 A CN 112024405A CN 202010865875 A CN202010865875 A CN 202010865875A CN 112024405 A CN112024405 A CN 112024405A
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- Prior art keywords
- ball
- hole
- feeding mechanism
- centralized feeding
- annular
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- 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
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/04—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size
-
- 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
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/14—Details or accessories
- B07B13/16—Feed or discharge arrangements
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Abstract
The invention discloses a ball object size screening device which comprises a horizontal roller shell. According to the invention, the ball objects are collectively poured into the collecting device, then move to one side under the action of the gravity of the balls and fall on the initial part of the drive, the ball objects are sequentially driven to rotate from one side to the other side by utilizing the spiral structure feeding technology, and the drive is in zero-clearance drive, so that the balls can be in contact with any part of the bottom plane, further, the balls with different sizes can accurately fall on the parts with corresponding sizes, and fall on the bottom position of the size under the action of the gravity, and meanwhile, the falling structure is a semi-annular spiral chamfer hole, so that the quick screening can be carried out, the phenomenon that the balls miss the size is reduced, and the screening effect is improved.
Description
Technical Field
The invention relates to the technical field of screening devices, in particular to a ball object size screening device.
Background
At present, ball object such as steel ball when carrying out the size screening, need use sieving mechanism, and general ball sieving mechanism is when carrying out the screening, and its efficiency is lower relatively.
Disclosure of Invention
The invention aims to provide a ball object size screening device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a ball object size screening device comprises a horizontal roller shell, wherein supporting legs are installed at the bottom of the horizontal roller shell, a cylindrical screening space with an end face in an open state is arranged in the horizontal roller shell, a driving motor installation shell is installed on the end face without the opening of the horizontal roller shell, a driving motor is installed in the driving motor installation shell, a shaft body of a motor spindle of the driving motor penetrates through the end face of the horizontal roller shell, a bearing is installed between the end face and the penetrating portion of the horizontal roller shell, a first conical hollow structure is arranged at the end portion of the driving motor in the cylindrical screening space, a cylindrical rotating body is installed at one end of the motor spindle in the cylindrical screening space, a second conical hollow structure is arranged at the center of the interior of the cylindrical rotating body, and a cylindrical insertion hole communicated with the external space is formed in one side of the second conical hollow structure, the other side of the second conical hollow structure is provided with a third conical hollow structure with a plurality of annular arrays, the side face of the cylindrical rotator is provided with a helical blade structure, the bottom of the cylindrical screening space is provided with a plurality of semi-annular helical chamfer holes, each semi-annular helical chamfer hole is positioned below two peaks and valleys of the helical blade structure, the semi-annular helical chamfer holes are formed in a mode that the transverse size from one solid side of the horizontal roller shell to one open side is increased from small to large, the bottom of each semi-annular helical chamfer hole is provided with a semi-annular leak hole structure communicated with the external space, a ball centralized feeding mechanism is installed inside the cylindrical insertion hole, and one side of the ball centralized feeding mechanism is fixed on one side surface of the horizontal roller shell through a main fixing rod.
Further, the ball centralized feeding mechanism comprises a hollow shell for the ball centralized feeding mechanism, a rod body mounting hole for the ball centralized feeding mechanism, a storage space for the ball centralized feeding mechanism, a conical falling space for the ball centralized feeding mechanism, an annular steering hole for the ball centralized feeding mechanism, a transverse hole for the ball centralized feeding mechanism, a mounting hole for the ball centralized feeding mechanism, a bearing for the ball centralized feeding mechanism, a mounting hollow pipeline for the ball centralized feeding mechanism and a pipeline hole for the ball centralized feeding mechanism.
Further, a rod body mounting hole for the ball centralized feeding mechanism is arranged inside one side of the hollow shell for the ball centralized feeding mechanism, a storage space for the ball centralized feeding mechanism is arranged inside the upper surface of the hollow shell for the ball centralized feeding mechanism, a conical falling space for the ball centralized feeding mechanism is arranged at the bottom of the storage space for the ball centralized feeding mechanism, an annular turning hole for the ball centralized feeding mechanism is arranged at the bottom of the conical falling space for the ball centralized feeding mechanism, a transverse hole for the ball centralized feeding mechanism is arranged at a transverse port of the annular turning hole for the ball centralized feeding mechanism, a mounting hole for the ball centralized feeding mechanism is arranged at the end part of the transverse hole for the ball centralized feeding mechanism, and a mounting hollow pipeline for the ball centralized feeding mechanism is mounted inside the mounting hole for the ball centralized feeding mechanism through a bearing for the ball centralized feeding mechanism, the ball centralized feeding mechanism is provided with pipeline holes for the ball centralized feeding mechanism in the hollow pipeline.
Furthermore, the diameter of the minimum port of the conical falling space for the ball centralized feeding mechanism, the diameter of the annular steering hole for the ball centralized feeding mechanism, the diameter of the transverse hole for the ball centralized feeding mechanism and the diameter of the pipeline hole for the ball centralized feeding mechanism are the same.
Further, the rod body at one end of the main fixing rod is arranged in the rod body mounting hole for the ball centralized feeding mechanism, and the pipeline body at one end for mounting the hollow pipeline for the ball centralized feeding mechanism is arranged in the cylindrical insertion hole.
Further, the larger port of the first conical hollow structure faces the semi-annular spiral chamfer hole and is communicated with one side of the cylindrical screening space.
Further, the larger port of the second conical hollow structure communicates toward the drive motor, the smaller port and the cylindrical insertion hole.
Further, the third conical hollow structure is communicated with the cylindrical screening space, and the smaller port is communicated with the larger port of the second conical hollow structure.
Furthermore, a larger port of the semi-annular spiral chamfer hole is communicated with the bottom of the cylindrical screening space, a smaller port of the semi-annular spiral chamfer hole is communicated with the top end of the semi-annular leak hole structure, the semi-annular spiral chamfer hole is of a semi-annular spiral structure, the spiral direction of the semi-annular spiral chamfer hole is consistent with the spiral direction of the spiral blade structure, and the length of the semi-annular spiral chamfer hole is consistent with half of the perimeter of the horizontal roller shell.
Furthermore, the structural shape and the length of the semi-annular leak hole structure are consistent with those of the semi-annular spiral chamfer hole.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the ball objects are collectively poured into the collecting device, then move to one side under the action of the gravity of the balls and fall on the initial part of the drive, the ball objects are sequentially driven to rotate from one side to the other side by utilizing the spiral structure feeding technology, and the drive is in zero-clearance drive, so that the balls can be in contact with any part of the bottom plane, further, the balls with different sizes can accurately fall on the parts with corresponding sizes, and fall on the bottom position of the size under the action of the gravity, and meanwhile, the falling structure is a semi-annular spiral chamfer hole, so that the quick screening can be carried out, the phenomenon that the balls miss the size is reduced, and the screening effect is improved.
Drawings
FIG. 1 is a schematic view of a full-section structure of a ball object size screening apparatus according to the present invention;
FIG. 2 is a schematic structural view of a ball centralized feeding mechanism in the ball object size screening apparatus according to the present invention;
in the figure: 1, a horizontal roller shell, 2, supporting legs, 3, a driving motor installation shell, 4, a driving motor, 5, a motor spindle, 6, a first conical hollow structure, 7, a cylindrical screening space, 8, a cylindrical rotating body, 9, a helical blade structure, 10, a semi-annular helical chamfer hole, 11, a semi-annular leak hole structure, 12, a second conical hollow structure, 13, a third conical hollow structure, 14, a cylindrical insertion hole, 15, a ball centralized feeding mechanism, 151, a hollow shell for the ball centralized feeding mechanism, 152, a rod body installation hole for the ball centralized feeding mechanism, 153, a storage space for the ball centralized feeding mechanism, 154, a conical falling space for the ball centralized feeding mechanism, 155, an annular steering hole for the ball centralized feeding mechanism, 156, a transverse hole for the ball centralized feeding mechanism, 157, an installation hole for the ball centralized feeding mechanism, 158, a bearing for the ball centralized feeding mechanism, 159, a hollow mounting pipe 1510 for the ball centralized feeding mechanism, pipe holes 16 for the ball centralized feeding mechanism and a main fixing rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention: the horizontal drum type screening device comprises a horizontal drum shell 1, supporting legs 2 are installed at the bottom of the horizontal drum shell 1, a cylindrical screening space 7 with an open end face is arranged in the horizontal drum shell 1, a driving motor installation shell 3 is installed on the end face without the open end face of the horizontal drum shell 1, a driving motor 4 is installed in the driving motor installation shell 3, a shaft body of a motor spindle 5 of the driving motor 4 penetrates through the end face of the horizontal drum shell 1, a bearing is installed between the penetrating parts of the shaft body and the horizontal drum shell, a first conical hollow structure 6 is arranged at the end part of the driving motor 4 of the cylindrical screening space 7, a cylindrical rotating body 8 is installed at one end of the motor spindle 5 positioned in the cylindrical screening space 7, a second conical hollow structure 12 is arranged at the center in the cylindrical rotating body 8, and a cylindrical insertion hole 14 communicated with the external space is arranged on one side of the second conical hollow structure 12, the other side of the second conical hollow structure 12 is provided with a plurality of third conical hollow structures 13 in an annular array, the side surface of the cylindrical rotating body 8 is provided with a helical blade structure 9, the bottom of the cylindrical screening space 7 is provided with a plurality of semi-annular helical chamfer holes 10, each semi-annular helical chamfer hole 10 is positioned below two peaks and valleys of the helical blade structure 9, the transverse size of each semi-annular helical chamfer hole 10 from the solid side to the opening side of the horizontal roller shell 1 is changed from small to large, the bottom of each semi-annular helical chamfer hole 10 is provided with a semi-annular leak hole structure 11 communicated with the external space, a ball centralized feeding mechanism 15 is installed inside the cylindrical insertion hole 14, and one side of the ball centralized feeding mechanism 15 is fixed on one side surface of the horizontal roller shell 1 through a main fixing rod 16.
Referring to fig. 2, the ball centralized feeding mechanism 15 includes a hollow housing 151 for the ball centralized feeding mechanism, a rod mounting hole 152 for the ball centralized feeding mechanism, a storage space 153 for the ball centralized feeding mechanism, a conical drop-in space 154 for the ball centralized feeding mechanism, a circular turning hole 155 for the ball centralized feeding mechanism, a transverse hole 156 for the ball centralized feeding mechanism, a mounting hole 157 for the ball centralized feeding mechanism, a bearing 158 for the ball centralized feeding mechanism, a mounting hollow pipe 159 for the ball centralized feeding mechanism, and a pipe hole 1510 for the ball centralized feeding mechanism; a rod body mounting hole 152 for the ball centralized feeding mechanism is arranged in one side of the hollow shell 151 for the ball centralized feeding mechanism, a storage space 153 for the ball centralized feeding mechanism is arranged in the upper surface of the hollow shell 151 for the ball centralized feeding mechanism, a conical falling space 154 for the ball centralized feeding mechanism is arranged at the bottom of the storage space 153 for the ball centralized feeding mechanism, a circular turning hole 155 for the ball centralized feeding mechanism is arranged at the bottom of the conical falling space 154 for the ball centralized feeding mechanism, a transverse hole 156 for the ball centralized feeding mechanism is arranged at a transverse port of the circular turning hole 155 for the ball centralized feeding mechanism, a mounting hole 157 for the ball centralized feeding mechanism is arranged at an end of the transverse hole 156 for the ball centralized feeding mechanism, a mounting hollow pipe 159 for the ball centralized feeding mechanism is mounted in the mounting hole 157 for the ball centralized feeding mechanism through a bearing 158 for the ball centralized feeding mechanism, the inside of the mounting hollow pipe 159 for the ball centralized feeding mechanism is provided with a pipe hole 1510 for the ball centralized feeding mechanism; the diameter of the smallest port of the conical falling space 154 for the ball centralized feeding mechanism, the diameter of the annular turning hole 155 for the ball centralized feeding mechanism, the diameter of the transverse hole 156 for the ball centralized feeding mechanism and the diameter of the pipeline hole 1510 for the ball centralized feeding mechanism are the same; the rod body at one end of the main fixing rod 16 is installed in the rod body installation hole 152 for the ball centralized feeding mechanism, and the pipeline body at one end of the installation hollow pipeline 159 for the ball centralized feeding mechanism is installed in the cylindrical insertion hole 14.
The larger end of the first conical hollow structure 6 faces the semi-annular spiral chamfer hole 10 and is communicated with one side of the cylindrical screening space 7.
The larger port of the second conical hollow structure 12 communicates toward the drive motor 4, the smaller port and the cylindrical insertion hole 14.
The third conical hollow structure 13 communicates with the cylindrical screening space 7 and the smaller port communicates with the larger port of the second conical hollow structure 12.
The large port of the semi-annular spiral chamfer hole 10 is communicated with the bottom of the cylindrical screening space 7, the small port of the semi-annular spiral chamfer hole is communicated with the top end of the semi-annular leak hole structure 11, the semi-annular spiral chamfer hole 10 is of a semi-annular spiral structure, the spiral direction of the semi-annular spiral chamfer hole 10 is consistent with the spiral direction of the spiral blade structure 9, and the length of the semi-annular spiral chamfer hole 10 is consistent with the half of the circumference of the horizontal roller shell 1.
The structural appearance and the length of the semi-annular leak hole structure 11 are consistent with those of the semi-annular spiral chamfer hole 10.
The specific use mode is as follows: in the work of the invention, the balls to be screened are put into the ball centralized feeding mechanism 15, and under the action of gravity, the balls enter the inner part of the second conical hollow structure 12 through the ball centralized feeding mechanism 15, and similarly, under the action of gravity, the balls fall on one side of the helical blade structure 9 through the first conical hollow structure 6, and at the same time, the driving motor 4 is turned on, under the transmission of the rotating force, the helical blade structure 9 drives the ball, the ball continuously moves forwards, when moving to the position of the semi-annular spiral chamfer hole 10, the semi-annular spiral chamfer hole falls on the top of the semi-annular leak hole structure 11, when the diameter of ball is less than the horizontal size of semi-annular small opening structure 11, the ball falls downwards under the effect of gravity, and the great ball of size continues to move forward, meets the ball of suitable size and falls down, and the ball that all does not accord with can outwards discharge through one side of cylindricality screening space 7.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a ball object size sieving mechanism, includes horizontal drum shell (1), its characterized in that: the drum type drum is characterized in that supporting legs (2) are installed at the bottom of the horizontal drum shell (1), a cylindrical screening space (7) with an end face in an open state is arranged inside the horizontal drum shell (1), a driving motor installation shell (3) is installed on one end face, which is not open, of the horizontal drum shell (1), a driving motor (4) is installed inside the driving motor installation shell (3), a shaft body of a motor spindle (5) of the driving motor (4) penetrates through the end face of the horizontal drum shell (1), a bearing is installed between the penetrating parts of the shaft body and the horizontal drum shell, a first conical hollow structure (6) is arranged at the end part of the driving motor (4) of the cylindrical screening space (7), a cylindrical rotating body (8) is installed at one end, which is located inside the cylindrical screening space (7), and a second conical hollow structure (12) is arranged at the center inside the cylindrical rotating body (8), a cylindrical insertion hole (14) communicated with the external space is formed in one side of the second conical hollow structure (12), a plurality of annular array third conical hollow structures (13) are arranged on the other side of the second conical hollow structure (12), a helical blade structure (9) is arranged on the side face of the cylindrical rotating body (8), a plurality of semi-annular helical chamfer holes (10) are formed in the bottom of the cylindrical screening space (7), each semi-annular helical chamfer hole (10) is located below two peaks and valleys of the helical blade structure (9), the transverse size of each semi-annular helical chamfer hole (10) from the solid side to the open side of the horizontal roller shell (1) is changed from small to large, a semi-annular leakage hole structure (11) communicated with the external space is formed in the bottom of each semi-annular helical chamfer hole (10), and a ball centralized feeding mechanism (15) is installed inside the cylindrical insertion hole (14), and one side of the ball centralized feeding mechanism (15) is fixed on the surface of one side of the horizontal roller shell (1) through a main fixing rod (16).
2. A ball object size screening apparatus according to claim 1, wherein: the ball centralized feeding mechanism (15) comprises a hollow shell (151) for the ball centralized feeding mechanism, a rod body mounting hole (152) for the ball centralized feeding mechanism, a storage space (153) for the ball centralized feeding mechanism, a conical falling space (154) for the ball centralized feeding mechanism, an annular steering hole (155) for the ball centralized feeding mechanism, a transverse hole (156) for the ball centralized feeding mechanism, a mounting hole (157) for the ball centralized feeding mechanism, a bearing (158) for the ball centralized feeding mechanism, a mounting hollow pipeline (159) for the ball centralized feeding mechanism and a pipeline hole (1510) for the ball centralized feeding mechanism.
3. A ball object size screening apparatus according to claim 2, wherein: the ball is concentrated to be thrown one side of hollow shell (151) for material mechanism inside and is equipped with the ball and concentrate and throw material mechanism with body of rod mounting hole (152), the ball is concentrated to be thrown material mechanism with hollow shell (151) upper surface inside and is equipped with the ball and concentrate and throw material mechanism with storage space (153), the bottom that the ball is concentrated to throw material mechanism with storage space (153) is equipped with the ball and concentrates to throw material mechanism with the toper and fall into space (154), the ball is concentrated to be thrown the bottom that the material mechanism falls into space (154) and is equipped with the ball and concentrates to throw material mechanism with annular steering hole (155), the ball is concentrated to be thrown the horizontal port of material mechanism with annular steering hole (155) and is equipped with the ball and concentrates to throw material mechanism with horizontal hole (156), the ball is concentrated to be thrown the tip of material mechanism with horizontal hole (156) and is equipped with ball and concentrates to throw material mechanism with mounting hole (157), the ball is concentrated to throw the inside of material mechanism with mounting hole (157) The ball centralized feeding mechanism is provided with a mounting hollow pipeline (159), and a pipeline hole (1510) for the ball centralized feeding mechanism is arranged in the mounting hollow pipeline (159).
4. A ball object size screening apparatus according to claim 3, wherein: the diameter of the minimum port of the conical falling space (154) for the ball centralized feeding mechanism, the diameter of the annular steering hole (155) for the ball centralized feeding mechanism, the diameter of the transverse hole (156) for the ball centralized feeding mechanism and the diameter of the pipeline hole (1510) for the ball centralized feeding mechanism are the same.
5. A ball object size screening apparatus according to claim 3, wherein: the rod body at one end of the main fixing rod (16) is arranged in the rod body mounting hole (152) for the ball centralized feeding mechanism, and the pipeline body at one end of the hollow pipeline (159) for the ball centralized feeding mechanism is arranged in the cylindrical insertion hole (14).
6. A ball object size screening apparatus according to claim 1, wherein: the larger port of the first conical hollow structure (6) faces to the semi-annular spiral chamfer hole (10) and is communicated with one side of the cylindrical screening space (7).
7. A ball object size screening apparatus according to claim 1, wherein: the larger port of the second conical hollow structure (12) communicates toward the drive motor (4), the smaller port and the cylindrical insertion hole (14).
8. A ball object size screening apparatus according to claim 1, wherein: the third conical hollow structure (13) is communicated with the cylindrical screening space (7), and the smaller port is communicated with the larger port of the second conical hollow structure (12).
9. A ball object size screening apparatus according to claim 1, wherein: the large port of the semi-annular spiral chamfer hole (10) is communicated with the bottom of the cylindrical screening space (7), the small port is communicated with the top end of the semi-annular leak hole structure (11), the semi-annular spiral chamfer hole (10) is of a semi-annular spiral structure, the spiral direction of the semi-annular spiral chamfer hole (10) is consistent with the spiral direction of the spiral blade structure (9), and the length of the semi-annular spiral chamfer hole (10) is consistent with half of the circumference of the horizontal roller shell (1).
10. A ball object size screening apparatus according to claim 1, wherein: the structural appearance and the length of the semi-annular leak hole structure (11) are consistent with those of the semi-annular spiral chamfer hole (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010865875.3A CN112024405A (en) | 2020-08-26 | 2020-08-26 | Ball object size screening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010865875.3A CN112024405A (en) | 2020-08-26 | 2020-08-26 | Ball object size screening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112024405A true CN112024405A (en) | 2020-12-04 |
Family
ID=73580080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010865875.3A Withdrawn CN112024405A (en) | 2020-08-26 | 2020-08-26 | Ball object size screening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112024405A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115318644A (en) * | 2022-07-01 | 2022-11-11 | 康姆罗拉有限公司 | Material specification controllable screening device |
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| CN108816526A (en) * | 2018-08-09 | 2018-11-16 | 金双悦 | A kind of spiral centrifugal separator |
| EP3533525A1 (en) * | 2018-02-28 | 2019-09-04 | Senro B.V. | Waste separation device |
| CN110841920A (en) * | 2019-10-23 | 2020-02-28 | 王爱春 | Ball-shaped object size screening device |
| CN111451152A (en) * | 2020-04-13 | 2020-07-28 | 青岛理工大学 | Conveying and screening device, spiral pushing type peanut kernel grader and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH203853A (en) * | 1936-04-30 | 1939-03-31 | Vogel Josef | Fruit sorting and preserving machine. |
| US3439804A (en) * | 1964-07-01 | 1969-04-22 | Brown Boveri Krupp Reaktor | Sorting apparatus for spherical bodies |
| CN2127892Y (en) * | 1992-07-15 | 1993-03-10 | 麻来有 | Rolling cylidder sorting machine for chestnut |
| CN2149256Y (en) * | 1992-08-25 | 1993-12-15 | 蒋井卫 | Sleeve type multi-stage sieves |
| CN2164924Y (en) * | 1993-07-31 | 1994-05-18 | 麻来友 | Chinese chestnut grader |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115318644A (en) * | 2022-07-01 | 2022-11-11 | 康姆罗拉有限公司 | Material specification controllable screening device |
| CN115318644B (en) * | 2022-07-01 | 2023-11-14 | 康姆罗拉有限公司 | Screening plant with controllable material specification |
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Application publication date: 20201204 |