CN213103148U - Rotary classifying screen - Google Patents

Abstract

The application relates to a rotary classifying screen, which comprises a support frame, wherein an inclined screening box is hung on the support frame, and a driving source for shaking the screening box is installed below the screening box. The feed inlet has been seted up on the roof of the higher one end of screening case, has seted up two discharge gates on the diapire of lower one end. Install the screen cloth on the inner wall of screening case, seted up on the vertical lateral wall in both sides of screening case and rotated respectively and install two puddlers, the pivot perpendicular to screen cloth place plane of puddler, mounting groove and puddler all are located the top of screen cloth, are provided with on the screening case to be used for ordering about puddler pivoted drive assembly. Open the driving source of screening case and order about the screening case and begin to move, with the fodder from the feed inlet input, open drive assembly and order about the puddler and begin to carry out reciprocating rotation, the fodder is abundant under the stirring of puddler and deflector and the screen cloth contact, has prolonged the contact time with the screen cloth to the screening effect of screening machine has effectively been improved.

Description

Rotary classifying screen

Technical Field

The application relates to the field of feed processing equipment, in particular to a rotary grading sieve.

Background

The rotary grading sieve is a high-efficiency feed grading and screening device widely used in various industries such as grain, feed, flour, chemical industry and food, and has the advantages of less dust, low noise, small vibration, stable operation and the like.

The patent of grant bulletin No. CN208912491U discloses a rotary classifying screen with multilayer screen structure, which comprises a supporting frame, the fixed hanging that is provided with in support frame top, the top of hanging is connected with the support frame, the bottom of hanging is provided with vibrations power transmission board, the one end upper surface of vibrations power transmission board is provided with the support column, the other end upper surface of vibrations power transmission board is provided with vibrating motor, the top of vibrations power transmission board is provided with the screening case, can peel off and maintain the maintenance to the individual layer filter screen at the in-process that uses.

With respect to the related art among the above, there are the following drawbacks: when the fodder of screening incasement was more, the fodder on upper strata can't be fully with the screen cloth contact, lead to the fodder not fully to be screened just from the discharge gate outflow, and the screening effect of classifying screen is relatively poor.

SUMMERY OF THE UTILITY MODEL

In order to improve the screening effect of classifying screen, this application provides a gyration classifying screen.

The application provides a rotary classifying screen adopts following technical scheme:

the utility model provides a rotary grading sieve, includes the support frame, hang the screening case that has the slope on the support frame, be provided with the driving source of ordering about screening case activity on the support frame, the feed inlet has been seted up at the top of the higher one side of screening case, the discharge gate has been seted up to the bottom of the lower one end of screening case, the screening incasement is provided with the screen cloth parallel with the bottom surface of screening case, the articulated a plurality of puddlers that are provided with on the vertical lateral wall in both sides of screening case, the puddler is located the screen cloth top, the articulated shaft perpendicular to screen cloth place plane of puddler, and is a plurality of along screening case length direction dislocation set in proper order between the puddler, be provided with on the screening case and be used for ordering about the reciprocal pivoted.

Through adopting above-mentioned technical scheme, open the driving source and order about screening case and begin to move, drop into the fodder from the feed inlet, open drive assembly and order about the puddler and carry out reciprocating rotation, when the fodder along the screen cloth when sliding downwards with the puddler contact, the puddler constantly stirs the fodder, makes the fodder fully contact with the screen cloth to sieve out finer fodder. Simultaneously, the feed is blocked by the stirring rod, so that the retention time of the feed on the screen is prolonged, the feed is further screened more thoroughly, and the screening effect of the screening machine is effectively improved.

Preferably, drive assembly includes motor, cam and torsional spring, the motor sets firmly at the top of screening case, the output shaft perpendicular to screen cloth of motor, the cam sets firmly on the output shaft of motor and the lateral wall contact that is close to discharge gate one side of lateral wall and puddler of cam, the torsional spring sets up and is used for ordering about the puddler in the axis of rotation of puddler and rotates to being close to discharge gate one side, the one end and puddler fixed connection, the other end and the screening case fixed connection of torsional spring.

Through adopting above-mentioned technical scheme, the torsional spring orders about the puddler all the time with the lateral wall contact of cam, when ann screening machine starts, opens the motor, and the motor drives the cam and rotates, orders about the puddler and carries out reciprocating motion to the realization is to the stirring effect of fodder.

Preferably, the stirring rod is provided with a guide plate, and the bottom of the guide plate is in contact with the screen.

Through adopting above-mentioned technical scheme, the fodder falls on screen cloth back and the deflector contact, and the articulated shaft one side that keeps away from the puddler is slided to the hindrance of deflector down again, increases the time that makes fodder and screen cloth contact under the deflector effect of a plurality of mutual dislocation, has effectively improved the screening effect of screening machine.

Preferably, the bottom of the guide plate is provided with a plurality of projections which are in contact with the screen, and the contact surface of the projections and the screen is an arc surface.

Through adopting above-mentioned technical scheme, the screening in-process, the fodder granule blocks up in the sieve mesh on the screen cloth easily, drives deflector pivoted in-process at the puddler, and the cambered surface and the screen cloth contact of lug to ejecting sieve mesh with the fodder that blocks up, effectively improved the screening effect of screen cloth.

Preferably, the screen cloth can be dismantled with the screening case and be connected, the opening has been seted up along the horizontal direction on the lateral wall of screening case, the screen cloth slides and sets up in the opening, set up on the inner wall on screening case and the opening coplanar and supply the gliding draw-in groove of screen cloth, it has the fixed subassembly that is used for fixed screen cloth to articulate on the opening.

Through adopting above-mentioned technical scheme, when the screen cloth needs to be changed, open fixed subassembly, directly take the screen cloth out from the opening, insert new screen cloth along the draw-in groove, then close fixed subassembly, the process of changing the screen cloth is convenient and fast more.

Preferably, fixed subassembly includes clamp plate, elastic block and hasp subassembly, the clamp plate articulates at the open-ended top, the elastic block sets firmly be used for on the clamp plate with the contact of screen cloth, the hasp subassembly includes movable part and fixed part, the fixed part sets firmly in the opening below, the movable part sets up and is used for being connected with the fixed part in the one end that self articulated shaft was kept away from to the clamp plate.

By adopting the technical scheme, when the screen is replaced, the lock catch assembly is opened, and then the pressing plate is lifted, so that the screen is pulled out; after a new screen is inserted, the pressing plate is buckled downwards, the pressing block tightly pushes the screen, and the movable part and the fixed part of the locking component are connected, so that the screen is fixed.

Preferably, a sliding layer is arranged on the inner wall of the clamping groove.

Through adopting above-mentioned technical scheme, the resistance that the screen cloth received when reducing the dismouting screen cloth makes more laborsaving when changing the screen cloth.

Preferably, the feed inlet is provided with a fan-shaped material distributing opening.

Through adopting above-mentioned technical scheme, on making the fodder get into whole screen cloth of dispersion when screening case, avoid the fodder to pile up, effectively improved the screening effect of screening machine.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the side wall of the screening box is hinged with a stirring rod, the stirring rod is provided with a guide plate, the screening box is provided with a driving assembly for driving the stirring rod to rotate in a reciprocating manner, when the feed falls on the screen, the stirring rod and the guide plate rotate in a reciprocating manner, so that the contact time of the feed and the screen is prolonged, the feed is in more full contact with the screen, and the screening effect of the screening machine is effectively improved;

2. the bottom of the guide plate is provided with a convex block which is in contact with the screen, the bottom surface of the convex block is arc-shaped, and when the guide plate rotates in a reciprocating manner, the arc-shaped surface of the convex block is in contact with the screen, so that the blocked feed is pushed down, and the screening effect of the screening machine is effectively improved;

3. offer the opening that is used for the dismouting screen cloth on the lateral wall of screening case, be provided with on the inner wall of screening case and the opening coplanar position and supply the gliding spout of screen cloth, be provided with the fixed subassembly that is used for fixed screen cloth on the opening, open fixed subassembly and just can change the screen cloth, make the change process of screen cloth convenient and fast more.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Figure 3 is a schematic view in partial section of a screening box after the screen has been pulled out in an embodiment of the application.

Fig. 4 is a partially enlarged schematic view of a portion B in fig. 3.

FIG. 5 is a schematic structural view of the stirring rod, the guide plate and the driving assembly in the embodiment of the present application.

Description of reference numerals: 1. a support frame; 2. screening the box; 21. a feed inlet; 22. a discharge port; 221. a first discharge port; 222. a second discharge port; 3. a drive source; 4. screening a screen; 5. a stirring rod; 51. a guide plate; 52. a bump; 6. a drive assembly; 61. a motor; 62. a cam; 63. a torsion spring; 7. an opening; 71. mounting grooves; 72. a card slot; 8. a material distributing port; 9. a fixing assembly; 91. pressing a plate; 92. an elastic block; 93. a latch assembly; 931. a movable portion; 932. a fixed part.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a rotary grading sieve. Referring to fig. 1 and 3, a rotary classifying screen includes a support frame 1, a screening box 2 is hung on the support frame 1, a driving source 3 for shaking the screening box 2 is installed below the screening box 2, and the driving source 3 selects a vibration motor in this embodiment. The screening box 2 is obliquely arranged along the length direction, a feed inlet 21 is formed in the top wall of the higher end of the screening box 2, and a fan-shaped material distributing opening 8 is formed in one end, extending out of the screening box 2, of the feed inlet 21; two discharge ports 22, namely a first discharge port 221 and a second discharge port 222, are formed in the bottom wall of the lower end. The inner wall of the screening box 2 is provided with a screen 4, and the screen 4 is parallel to the top surface and the bottom surface of the screening box 2. The lower end of the screen 4 is connected to the first discharge port 221, and the bottom surface of the screen box 2 is connected to the second discharge port 222. After the fodder falls on the screen 4, the coarse fodder flows out from the first discharge port 221 along the screen 4, and the fine fodder falls on the bottom surface of the screening box 2 below the screen 4 and flows out from the second discharge port 222.

Referring to fig. 1 and 2, an opening 7 for disassembling and assembling the screen 4 is formed in a vertical side wall of one side of the screening box 2 along the length direction of the opening, and the shape of the opening 7 is the same as that of the side wall of the screen 4. Offer the draw-in groove 72 that is used for installing screen cloth 4 on the inner wall of screening case 2, draw-in groove 72 and opening 7 just communicate with opening 7 on the coplanar, and screen cloth 4 can directly be extracted from opening 7 or insert, and the inner wall of draw-in groove 72 is scribbled the sliding layer that is equipped with the teflon material. Two mounting grooves 71 which are convenient for operating the screen 4 are arranged on the opening 7.

Referring to fig. 1 and 2, two sets of fixing assemblies 9 for fixing the screen 4 are disposed at positions of the openings 7 at the mounting grooves 71, and each fixing assembly includes a pressing plate 91, an elastic block 92 and a locking assembly 93, the elastic block is a rubber block in this embodiment, and the locking assembly 93 is a self-locking lock. One end of the pressing plate 91 is hinged to the wall surface above the opening 7, and the pressing plate 91 stretches across the opening 7 when rotating downwards to be attached to the side wall. The elastomeric elements are heat welded to the intermediate position of the pressure plate 91 and the elastomeric blocks 92 contact the side walls of the screen 4 when the pressure plate 91 is rotated downwardly until the side walls engage. Hasp subassembly 93 is divided into fixed part 932 and movable part 931, and fixed part 932 fixes on the lateral wall of opening 7 below, and movable part 931 is installed and is kept away from the one end of clamp plate 91 articulated shaft at clamp plate 91, and when clamp plate 91 rotated to with the lateral wall laminating, movable part 931 and fixed part 932 joint. When the screen cloth 4 needs to be replaced, the lock buckle assembly 93 is opened to lift the pressing plate 91, the screen cloth 4 is taken out from the screening box 2, a new screen cloth 4 is inserted into the opening 7, the pressing plate 91 is buckled again, the replacement of the screen cloth 4 is completed, and the replacement process is convenient and fast.

Referring to fig. 3 and 4, two stirring rods 5 are respectively rotatably mounted on the vertical side walls of the two sides of the screening box 2, the stirring rods 5 face the discharge port 22, and the rotating shafts of the stirring rods 5 are perpendicular to the plane of the screening box 4. The stirring rods 5 on both sides are arranged in a staggered manner in the longitudinal direction of the screen 4. Mounting groove 71 and puddler 5 all are located the top of screen cloth 4, are provided with on the screening case 2 and are used for driving puddler 5 pivoted drive assembly 6.

Referring to fig. 3 and 4, the driving assembly 6 includes a motor 61, a cam 62, and a torsion spring 63. Torsion spring 63 is rotatably disposed on the rotating shaft of agitator 5, one end of torsion spring 63 is welded to agitator 5, the other end is welded to screen box 2, and torsion spring 63 drives agitator 5 to rotate toward the outlet. The motor 61 is fixed to the sieve box 2 by a bolt, and an output shaft of the motor 61 faces downward and is perpendicular to the sieve 4. A cam 62 is welded on the output shaft of the motor 61, and the side wall of the cam 62 is contacted with the side wall of the stirring rod 5 close to the discharge port 22. The motor 61 drives the cam 62 to rotate when rotating, drives the stirring rod 5 to rotate in a reciprocating manner under the action of the cam 62 and the torsion spring 63, so that the feed is stirred, the feed is fully contacted with the screen 4, and the screening effect of the screening box 2 is effectively improved.

Referring to fig. 3 and 4, a guide plate 51 is welded at the bottom of the stirring rod 5, the guide plate 51 is perpendicular to the screen 4, and when the guide rod rotates, the guide plate 51 is driven to rotate to block and stir the feed, so that the contact time of the feed and the screen 4 is prolonged, and the feed is sufficiently screened.

Referring to fig. 4 and 5, a plurality of elastic bumps 52 made of rubber are uniformly distributed at the bottom of the guide rod, the bumps 52 are in contact with the screen 4, and the contact surface is an arc curved surface. When the feed particles are blocked in the sieve holes of the sieve screen 4, the curved surfaces of the convex blocks 52 can eject the feed particles out of the sieve holes, so that the blockage of the sieve screen 4 is effectively avoided.

The implementation principle of a rotary classifying screen in the embodiment of the application is as follows: the driving source 3 for opening the screening box 2 drives the screening box 2 to start moving, feed is input from the feed inlet 21, and the motor 61 is started to drive the stirring rod 5 to start reciprocating rotation. The fodder slides down the screen 4 and then comes into contact with the stirring rod 5 and the guide plate 51, and the guide plate 51 restricts the fodder from sliding so that the fodder continues to slide from the gap between the guide plate 51 and the other side wall while the fodder is continuously stirred. The fodder is abundant under the stirring of puddler 5 and deflector 51 and is contacted with screen cloth 4, makes the fodder fully be sieved, has prolonged the contact time with screen cloth 4 simultaneously under the hindrance of deflector 51, further makes the fodder screened to the screening effect of screening machine has effectively been improved. The lug 52 with the cambered surface at the bottom of the guide plate 51 is in contact with the screen 4, and when the screen holes of the screen 4 are blocked by feed particles, the lug 52 pushes the feed particles out downwards, so that the blocking of the screen 4 is effectively avoided.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a rotary classifying screen, includes support frame (1), the screening case (2) that have the slope are hung to support frame (1), be provided with driving source (3) of ordering about screening case (2) activity on support frame (1), feed inlet (21) have been seted up at the top of the higher one side of screening case (2), discharge gate (22), its characterized in that have been seted up to the bottom of the lower one end of screening case (2): be provided with in screening case (2) with screen cloth (4) parallel with the bottom surface of screening case (2), the articulated a plurality of puddler (5) that are provided with on the vertical lateral wall in both sides of screening case (2), puddler (5) are located screen cloth (4) top, the articulated shaft perpendicular to screen cloth (4) place plane of puddler (5) is a plurality of even interval dislocation set of screening case (2) length direction is followed in puddler (5), be provided with on screening case (2) and be used for ordering about puddler (5) reciprocating rotation's drive assembly (6).

2. A rotary sizing screen according to claim 1, wherein: drive assembly (6) include motor (61), cam (62) and torsional spring (63), motor (61) set firmly at the top of screening case (2), the output shaft perpendicular to screen cloth (4) of motor (61), cam (62) set firmly on the output shaft of motor (61) and the lateral wall of cam (62) and puddler (5) be close to the lateral wall contact of discharge gate (22) one side, torsional spring (63) set up the expansion end that is used for ordering about puddler (5) in the axis of rotation of puddler (5) and rotate to being close to discharge gate (22) one side, the one end and puddler (5) fixed connection, the other end and screening case (2) fixed connection of torsional spring (63).

3. A rotary sizing screen according to claim 1, wherein: the stirring rod (5) is provided with a guide plate (51), and the bottom of the guide plate (51) is in contact with the screen (4).

4. A rotary sizing screen according to claim 3, wherein: the bottom of the guide plate (51) is provided with a plurality of lugs (52) contacted with the screen (4), and the contact surface of the lugs (52) and the screen (4) is an arc surface.

5. A rotary sizing screen according to claim 1, wherein: screen cloth (4) can be dismantled with screening case (2) and be connected, opening (7) have been seted up along the horizontal direction on the lateral wall of screening case (2), screen cloth (4) slide to set up in opening (7), screening case (2) are located gliding draw-in groove (72) of confession screen cloth (4) with opening (7) on the inner wall of coplanar, it has fixed subassembly (9) that are used for fixed screen cloth (4) to articulate on opening (7).

6. A rotary sizing screen according to claim 5, wherein: fixed subassembly (9) include clamp plate (91), elastic block (92) and hasp subassembly (93), clamp plate (91) articulates at the top of opening (7), elastic block (92) set firmly be used for on clamp plate (91) with the contact of screen cloth (4), hasp subassembly (93) are including movable part (931) and fixed part (932), fixed part (932) set firmly in opening (7) below, movable part (931) set up and keep away from the one end of self articulated shaft in clamp plate (91) and are used for being connected with fixed part (932).

7. A rotary sizing screen according to claim 5, wherein: and a sliding layer is arranged on the inner wall of the clamping groove (72).

8. A rotary sizing screen according to claim 1, wherein: be provided with sectorial branch material mouth (8) on feed inlet (21), divide material mouth (8) to be located the screen cloth top and towards discharge gate (22).

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