Classified screening device

Abstract

A grading screening device comprises a device frame, a driving part and a screening barrel. The device frame comprises a bottom plate, a first lifting device and a stand column. The first lifting device is vertically arranged on one side of the bottom plate; the stand column is vertically arranged on the other side of the bottom plate. The driving part comprises a rotating motor and a rotating shaft; the rotating motor is arranged at one end of the rotating shaft and is used for driving the rotating shaft to rotate; the rotating motor is hinged to the first lifting device, and the end, away from the rotating motor, of the rotating shaft is hinged to the stand column. The screening barrel is arranged on the rotating shaft and comprises a plurality of layers of screening barrels; the screen drum is cylindrical, and a plurality of screen holes are formed in the screen drum; and the multiple layers of screen drums are concentrically arranged. The problems that products of different grades can be obtained only through multiple times of screening of common grading screening equipment, and the whole process is too tedious are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening, in particular to a graded screening device. Background Art

[0002] Grading screening is generally used to screen products according to different specifications and sizes, so as to realize the screening, grading, filtering and other processing procedures of the products, retain the products that meet the specifications, and remove the impurities that do not meet the specifications.

[0003] The general screening machine uses the vibration generated by the vibration motor and spring to move and separate the product on the screen. In the graded screening equipment, the product will pass through the screens of different specifications for multiple times to be screened. However, this method requires multiple screenings to obtain products of different grades, and the whole process is too cumbersome. Utility Model Content

[0004] The utility model aims to provide a grading screening device, which solves the problem that general grading screening equipment needs to undergo multiple screenings to obtain products of different grades, and the whole process is too complicated.

[0005] The embodiments of the present invention are implemented by the following technical solutions:

[0006] A grading screening device, comprising:

[0007] The device frame comprises a bottom plate, a first lifting device and a column; the first lifting device is vertically arranged on one side of the bottom plate; the column is vertically arranged on the other side of the bottom plate;

[0008] The driving part includes a rotating motor and a rotating shaft; the rotating motor is arranged at one end of the rotating shaft and is used to drive the rotating shaft to rotate; the rotating motor is hinged to the first lifting device, and one end of the rotating shaft away from the rotating motor is hinged to the column;

[0009] The screening drum is arranged on a rotating shaft and comprises a plurality of layers of screening drums; the screening drum is cylindrical and has a plurality of screening holes thereon; the plurality of layers of screening drums are concentrically arranged.

[0010] The bottom plate is also provided with a slide groove; the bottom of the first lifting device is slidably arranged in the slide groove.

[0011] A plurality of support columns are also arranged on the rotating shaft; the support columns pass through a plurality of layers of the screen cylinders and fix them relative to the rotating shaft.

[0012] A feed end cover is provided on one end of the screening cylinder close to the first lifting device, and a discharge end cover is provided on one end of the screening cylinder close to the column.

[0013] The feed end cover is provided with a feed inlet and a feed door; the feed inlet passes through the interior of the innermost screen cylinder in the screening cylinder; the feed door is rotatably arranged at the feed inlet.

[0014] The discharging end cover is provided with a plurality of discharging ports and discharging doors; the discharging ports are respectively connected to the interior of the innermost screen cylinder in the screening cylinder and between two adjacent screen cylinders.

[0015] The bottom plate is also provided with a discharge guiding device, including a second lifting device and a discharge inclined plate; the second lifting device is vertically arranged on the bottom plate, located below the screening drum near one end of the column; the discharge inclined plate is inclined at the top of the second lifting device.

[0016] The bottom plate is also provided with an impurity groove; the impurity groove is located below the screening cylinder.

[0017] The diameters of the sieve holes on the plurality of sieve cylinders decrease successively from the innermost sieve cylinder to the outermost sieve cylinder.

[0018] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0019] The utility model is a grading screening device, which adopts a multi-layer screen cylinder concentrically arranged, the screen holes on which are successively smaller, and a discharge port is provided at the interlayer port of each screen cylinder, so that a variety of products of different specifications can be obtained after a single screening. It solves the problem that the general grading screening equipment needs to go through multiple screenings to obtain products of different grades, and the whole process is too cumbersome. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the overall structure of the utility model Figure 2 ;

[0022] Figure 3 It is a side view schematic diagram of the utility model;

[0023] Figure 4 This is an example Figure 3 Sectional view at point A.

[0024] In the figure, 1-bottom plate, 101-chute, 102-impurity slot, 201-first lifting device, 202-rotating motor, 3-column, 401-rotating shaft, 402-coupling, 403-screening cylinder, 4031-screening inner cylinder, 4032-screening middle cylinder, 4033-screening outer cylinder, 404-feeding end cover, 4041-feeding port, 4042-feeding door, 4043-feeding guide plate, 405- Support column, 406-discharge end cover, 4061a-inner cylinder discharge port, 4061b-inner cylinder discharge door, 4061c-inner cylinder discharge guide plate, 4062a-middle cylinder discharge port, 4062b-middle cylinder discharge door, 4062c-middle cylinder discharge guide plate, 4063a-outer cylinder discharge port, 4063b-outer cylinder discharge door, 4063c-outer cylinder discharge guide plate, 501-second lifting device, 502-discharge inclined plate. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figure 1-4As shown, a grading screening device includes a bottom plate 1, a first lifting device 201, a chute 101, a column 3, an impurity trough 102, a second lifting device 501, a discharging inclined plate 502, a rotating motor 202, a rotating shaft 401 and a screening drum 403; the bottom plate 1 is placed horizontally; the first lifting device 201 is vertically arranged on one side of the bottom plate 1; the column 3 is vertically arranged on the other side of the bottom plate 1; the bottom plate 1 is also provided with a chute 101, and the bottom of the first lifting device 201 is slidably arranged in the chute 101; the rotating motor 202 is arranged at one end of the rotating shaft 401, and is used to drive the The rotating shaft 401 rotates; the rotating motor 202 is hinged to the movable end at the top of the first lifting device 201, and the end of the rotating shaft 401 away from the rotating motor 202 is hinged to the top of the column 3; the screening drum 403 is fixed on the rotating shaft 401 and can rotate with the rotating shaft 401; the second lifting device 501 is vertically arranged on the bottom plate 1, below the end of the screening drum 403 close to the column 3; the discharging inclined plate 502 is tilted on the movable end at the top of the second lifting device 501; the impurity trough 102 is arranged on the bottom plate 1, below the screening drum 403.

[0028] like Figure 4 As shown, the screening cylinder 403 includes a screening inner cylinder 4031, a screening middle cylinder 4032, a screening outer cylinder 4033, a feed end cover 404 and a discharge end cover 406; the screening inner cylinder 4031, the screening middle cylinder 4032 and the screening outer cylinder 4033 are sequentially arranged concentrically from the inside to the outside; the screening inner cylinder 4031, the screening middle cylinder 4032 and the screening outer cylinder 4033 are all cylindrical, and are provided with a plurality of sieve holes, and the diameters of the sieve holes are successively smaller; the feed end cover 404 is arranged on the end of the screening cylinder 403 close to the first lifting device 201; the discharge end cover 406 is arranged on the end of the screening cylinder 403 close to the column 3;

[0029] Specifically, the rotating shaft 401 is coaxially arranged with the screening cylinder 403, and passes through the feed end cover 404 and the discharge end cover 406 at both ends thereof and extends out, and a plurality of support columns 405 are also arranged thereon; the support columns 405 pass through the screening inner cylinder 4031, the screening middle cylinder 4032 and the screening outer cylinder 4033 in sequence, and are fixed relative to the rotating shaft 401;

[0030] More specifically, the feed end cover 404 is further provided with a feed port 4041, a feed gate 4042 and a feed guide plate 4043; the feed port 4041 is connected to the interior of the screening inner cylinder 4031; the feed gate 4042 is rotatably arranged at the feed port 4041; the feed guide plate 4043 is arranged at the edge of the feed port 4041 and extends outward;

[0031] More specifically, the discharge end cover 406 is further provided with an inner cylinder discharge port 4061a, an inner cylinder discharge door 4061b, an inner cylinder discharge guide plate 4061c, a middle cylinder discharge port 4062a, a middle cylinder discharge door 4062b, a middle cylinder discharge guide plate 4062c, an outer cylinder discharge port 4063a and an outer cylinder discharge door 4063b; the inner cylinder discharge port 4061a passes through the interior of the screening inner cylinder 4031, the inner cylinder discharge door 4061b is rotatably disposed at the inner cylinder discharge port 4061a, and the inner cylinder discharge guide plate 4061c is disposed at the edge of the inner cylinder discharge port 4061a and extends outwards; The middle cylinder discharge port 4062a passes through the interlayer between the screening middle cylinder 4032 and the screening inner cylinder 4031, the middle cylinder discharge gate 4062b is rotatably arranged at the middle cylinder discharge port 4062a, and the middle cylinder discharge guide plate 4062c is arranged at the edge of the middle cylinder discharge port 4062a and extends outward; the outer cylinder discharge port 4063a passes through the interlayer between the screening outer cylinder 4033 and the screening middle cylinder 4032, the outer cylinder discharge gate 4063b is rotatably arranged at the outer cylinder discharge port 4063a, and the outer cylinder discharge guide plate 4063c is arranged at the edge of the outer cylinder discharge port 4063a and extends outward.

[0032] The working principle of this embodiment is:

[0033] The utility model provides a grading screening device, firstly drives the first lifting device 201 to lift one end of the screening drum 403, and opens the feed door 4042 at the feed port 4041, and pours the product into the screening inner drum 4031 along the feed guide plate 4043, and then drives the first lifting device 201 to keep the axis of the screening drum 403 horizontal, and then makes the rotating motor 202 work to drive the screening drum 403 to rotate, and screens the product in the screening drum 403, and the unqualified product passes through the sieve holes that are successively smaller from the inside to the outside, and falls into the impurity tank 102, and is made The qualified products are retained in the screening inner cylinder 4031 and the interlayer in the screening cylinder 403 according to their sizes. After the impurities are removed, one end of the screening cylinder 403 is lifted again, and the inner cylinder discharge port 4061a is turned downward, and the second lifting device 501 is driven to move the discharge inclined plate 502 below the inner cylinder discharge guide plate 4061c, and the inner cylinder discharge door 4061b is opened, so that the products therein fall along the inner cylinder discharge guide plate 4061c and the discharge inclined plate 502 and are collected, and then the above operation is repeated to collect the products located in the interlayer of the screening cylinder 403.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A grading and screening device, characterized in that: include: The device frame comprises a bottom plate, a first lifting device and a column; the first lifting device is vertically arranged on one side of the bottom plate; the column is vertically arranged on the other side of the bottom plate; The driving part includes a rotating motor and a rotating shaft; the rotating motor is arranged at one end of the rotating shaft and is used to drive the rotating shaft to rotate; the rotating motor is hinged to the first lifting device, and one end of the rotating shaft away from the rotating motor is hinged to the column; The screening drum is arranged on a rotating shaft and comprises a plurality of layers of screening drums; the screening drum is cylindrical and has a plurality of screening holes thereon; the plurality of layers of screening drums are concentrically arranged.

2. A grading and screening device according to claim 1, characterized in that: The bottom plate is also provided with a slide groove; the bottom of the first lifting device is slidably arranged in the slide groove.

3. A grading and screening device according to claim 1, characterized in that: A plurality of support columns are also arranged on the rotating shaft; the support columns pass through a plurality of layers of the screen cylinders and fix them relative to the rotating shaft.

4. A grading and screening device according to claim 1, characterized in that: A feed end cover is provided on one end of the screening cylinder close to the first lifting device, and a discharge end cover is provided on one end of the screening cylinder close to the column.

5. A grading and screening device according to claim 4, characterized in that: The feed end cover is provided with a feed inlet and a feed door; the feed inlet passes through the interior of the innermost screen cylinder in the screening cylinder; the feed door is rotatably arranged at the feed inlet.

6. A grading and screening device according to claim 4, characterized in that: The discharging end cover is provided with a plurality of discharging ports and discharging doors; the discharging ports are respectively connected to the interior of the innermost screen cylinder in the screening cylinder and between two adjacent screen cylinders.

7. A grading and screening device according to claim 1, characterized in that: The bottom plate is also provided with a discharge guiding device, including a second lifting device and a discharge inclined plate; the second lifting device is vertically arranged on the bottom plate, located below the screening drum near one end of the column; the discharge inclined plate is inclined at the top of the second lifting device.

8. A grading and screening device according to claim 1, characterized in that: The bottom plate is also provided with an impurity groove; the impurity groove is located below the screening cylinder.

9. A grading and screening device according to claim 1, characterized in that: The diameters of the sieve holes on the plurality of sieve cylinders decrease successively from the innermost sieve cylinder to the outermost sieve cylinder.

Images