CN216874944U

CN216874944U - Sow feed ingredient screening installation

Info

Publication number: CN216874944U
Application number: CN202220149202.2U
Authority: CN
Inventors: 奚拴虎
Original assignee: Douruimi Chengdu Agricultural Technology Group Co ltd
Current assignee: Gansu Zhongnong Biotechnology Co ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-07-05
Anticipated expiration: 2032-01-19

Abstract

The utility model relates to the technical field of feed processing, and discloses a sow feed raw material screening device which comprises a screening box and a collecting box communicated with the bottom of the screening box, wherein a movable frame is slidably inserted into the inner wall of the screening box, a screen is fixedly connected to the inner wall of the movable frame, and the front side and the back side of the screening box are communicated with fixed boxes. This sow feed ingredient screening installation, through the slide bar, the reciprocating plate, the cylinder, scraping wings and grinding barrel cooperation are used, make the fodder pour into screening incasement portion back into, the screen cloth filters the fodder, inside the fine particle fodder falls into the recovery box, coarse particle fodder is pushed into inside the intercommunication pipeline by the scraping wings, the abrasive brick grinds coarse particle fodder, fodder after the grinding falls into inside the recovery box, make the device can grind the coarse particle fodder of selecting, make the staff need not to clear up the coarse particle fodder, and the work efficiency is improved.

Description

Sow feed ingredient screening installation

Technical Field

The utility model relates to the technical field of feed processing, in particular to a sow feed raw material screening device.

Background

Currently, the production of pig feed comprises granular, powdery or other shaped products, but before the production of feed, in order to improve the mixing degree of the product, the provided raw materials need to be mixed as uniformly as possible, so that the raw materials need to be screened, so that the raw materials with the same or similar fine particle size are stirred together, and other raw materials which are not screened are crushed again, so that the utilization rate of the raw materials is improved.

For example, chinese patent application nos.: 201921783506.9, a sow feed ingredient screening device, substantially as follows: the screening device comprises a discharge cylinder, wherein vertical rods are vertically and fixedly connected to the left part and the right part of the top of the discharge cylinder, a screening cylinder is movably inserted into the discharge cylinder, a transverse plate is fixedly covered at the top of the screening cylinder, and a mounting hole is vertically formed in the middle position of the transverse plate; when the device needs to clean the screened residues on the upper part of the arc-shaped screen plate, the nut and the pull rod are rotated and removed, so that the arc-shaped screen plate descends from the screening cylinder and extends out of the lower part of the discharge cylinder, and the residues on the upper part of the arc-shaped screen plate are discharged.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a sow feed raw material screening device, which solves the problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: a sow feed raw material screening device comprises a screening box and a collecting box communicated with the bottom of the screening box, wherein a movable frame is inserted into the inner wall of the screening box in a slidable manner, a screen is fixedly connected to the inner wall of the movable frame, fixed boxes are communicated with the front side and the back side of the screening box, two groups of sliding shafts fixedly connected with the movable frame are inserted into the front side of the fixed box in a slidable manner, a first spring is sleeved on the outer surface of each sliding shaft, a cam is vertically and rotatably connected onto the inner wall of the fixed box on the rear side through an inserted rotating pin, a first driving motor is fixedly connected onto the back side of the screening box, the rotating pin is fixedly connected with the output end of the first driving motor, two groups of sliding rods are inserted into the left side of the screening box in a slidable manner, a reciprocating plate is fixedly connected onto the left end of each sliding rod, a cylinder is installed on the front side of the screening box, and the output end of the cylinder is fixedly connected with the right side of the reciprocating plate, the right end of the sliding rod is fixedly connected with a traveling plate, the bottom of the traveling plate is hinged with a material pushing plate, the upper surface of the collecting box is communicated with a grinding barrel, the inner wall of the grinding barrel is fixedly connected with a support frame, the inner wall of the support frame is rotatably connected with a rotating shaft, the bottom end of the rotating shaft is fixedly connected with a grinding block, the outer surface of the grinding block and the inner wall of the grinding barrel are both fixedly connected with grinding strips, the rear side of the outer surface of the grinding barrel is fixedly connected with a second driving motor through a motor supporting table, the output end of the second driving motor is fixedly connected with a rotating rod, the rotating rod is in transmission connection with the rotating shaft through a transmission belt set, the grinding barrel screening boxes are communicated through a communicating pipeline, a recovery box is arranged in the collecting box, the four corners of the lower surface of the collecting box are fixedly connected with damping columns, and the upper surface of the collecting box is fixedly connected with an air pump.

Preferably, the shock absorption column comprises a base plate, a support sleeve is fixedly connected to the upper surface of the base plate, a support block is slidably connected to the inner wall of the support sleeve, and a second spring is fixedly connected between the support block and the base plate.

Preferably, the T-shaped sliding grooves matched with the T-shaped sliding strips are formed in the inner walls of the screening box and the fixing box.

Preferably, the outer surface of the sliding rod is provided with a lubricating grease layer, and the thickness of the lubricating grease layer on the outer surface of the sliding rod is zero two to five millimeters.

Preferably, the upper surface and the lower surface of the fixed box positioned at the rear side are both provided with ball bearings, and the fixed box positioned at the rear side is rotatably connected with the rotating pin through the ball bearings.

Preferably, the outer surface of the rotating pin is fixedly connected with a connecting key, and the inner wall of the cam is provided with a key groove matched with the connecting key.

Preferably, the lower surface of the motor supporting table is fixedly connected with two groups of supporting rods, and the bottom ends of the supporting rods are fixedly connected with the outer surface of the grinding barrel.

Preferably, the top of the outer surface of the rotating rod is rotatably connected with a supporting plate, and the supporting plate is fixedly connected with the grinding barrel.

Preferably, the outer surface of the sliding rod is slidably sleeved with a stabilizing lantern ring, and the right side surface of the stabilizing lantern ring is fixedly connected with the left side surface of the screening box.

Preferably, the lower surface of the fixed box is fixedly connected with two groups of reinforcing ribs, and the inner side surfaces of the reinforcing ribs are fixedly connected with the outer surface of the screening box.

(III) advantageous effects

Compared with the prior art, the utility model provides a sow feed raw material screening device, which has the following beneficial effects:

1. this sow feed ingredient screening installation, through the slide bar, the reciprocating plate, the cylinder, scraping wings and grinding barrel cooperation are used, make the fodder pour into screening incasement portion back into, the screen cloth filters the fodder, inside the fine particle fodder falls into the recovery box, coarse particle fodder is pushed into inside the intercommunication pipeline by the scraping wings, the abrasive brick grinds coarse particle fodder, fodder after the grinding falls into inside the recovery box, make the device can grind the coarse particle fodder of selecting, make the staff need not to clear up the coarse particle fodder, and the work efficiency is improved.

2. This sow feed ingredient screening installation, through removing the frame, the screen cloth, the cam, the rotating pin, sliding shaft and first spring cooperation are used, make the rotating pin drive the cam and rotate, the cam is transferred with first spring cooperation and is removed frame and screen cloth reciprocating motion all around, thereby further improved the screening efficiency of screen cloth to the fodder, and further reduced the probability that the fodder blockked up the screen cloth, through setting up the collecting box and retrieving the box, make the fodder after fine grain fodder and the grinding fall into and retrieve inside the box, thereby made things convenient for the recovery of staff to the fodder.

3. This sow feed ingredient screening installation, advance board and scraping wings through the setting, when making advance board and scraping wings remove right, the scraping wings releases the coarse grain fodder, when advancing board and scraping wings and remove left, because there is the coarse grain fodder on the screen cloth, the scraping wings turns over the anticlockwise, thereby avoided the scraping wings to pile up the coarse grain fodder in the left side of screen cloth, the smoothness nature of the device operation has been improved, through setting up abrasive brick and abrasive strip, make abrasive strip on the abrasive brick and the abrasive strip on the grinding barrel mutually support and grind the coarse grain fodder, thereby further improved the grinding quality of abrasive brick to the coarse grain fodder.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the backside structure of the present invention;

FIG. 3 is an expanded view of the present invention;

FIG. 4 is a schematic cross-sectional view of the present invention;

FIG. 5 is a partial structural schematic diagram of the present invention.

In the figure: 1. a screening box; 2. a collection box; 3. moving the frame; 4. a screen mesh; 5. a fixing box; 6. a sliding shaft; 7. a first spring; 8. a rotation pin; 9. a cam; 10. a first drive motor; 11. a slide bar; 12. a reciprocating plate; 13. a cylinder; 14. a traveling plate; 15. a material pushing plate; 16. a grinding barrel; 17. a support frame; 18. a rotating shaft; 19. grinding blocks; 20. grinding the strip; 21. a motor support table; 22. a second drive motor; 23. rotating the rod; 24. a drive belt set; 25. a communicating pipeline; 26. a recovery box; 27. a shock-absorbing post; 28. an air pump.

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. 1-5, the present invention provides a technical solution: a sow feed raw material screening device comprises a screening box 1 and a collecting box 2 communicated with the bottom of the screening box 1, wherein a movable frame 3 is inserted into the inner wall of the screening box 1 in a slidable manner, a screen 4 is fixedly connected to the inner wall of the movable frame 3, a fixed box 5 is communicated with the front side and the back side of the screening box 1, two groups of sliding shafts 6 fixedly connected with the movable frame 3 are inserted into the front side of the fixed box 5 positioned on the front side in a slidable manner, a first spring 7 is sleeved on the outer surface of each sliding shaft 6, a cam 9 is vertically and rotatably connected to the inner wall of the fixed box 5 positioned on the rear side through an inserted rotating pin 8, a first driving motor 10 is fixedly connected to the back side of the screening box 1, the model of the first driving motor 10 is Y80M1-2, the rotating pin 8 is fixedly connected with the output end of the first driving motor 10, two groups of sliding rods 11 are inserted into the left side of the screening box 1 in a slidable manner, and a reciprocating plate 12 is fixedly connected to the left end of each sliding rod 11, the front surface of the screening box 1 is provided with an air cylinder 13, the model of the air cylinder 13 is SC50-50, the output end of the air cylinder 13 is fixedly connected with the right side surface of the reciprocating plate 12, the right end of the sliding rod 11 is fixedly connected with a traveling plate 14, the bottom of the traveling plate 14 is hinged with a material pushing plate 15, the upper surface of the collecting box 2 is communicated with a grinding barrel 16, the inner wall of the grinding barrel 16 is fixedly connected with a supporting frame 17, the inner wall of the supporting frame 17 is rotatably connected with a rotating shaft 18, the bottom end of the rotating shaft 18 is fixedly connected with a grinding block 19, the outer surface of the grinding block 19 and the inner wall of the grinding barrel 16 are both fixedly connected with a grinding strip 20, the rear side of the outer surface of the grinding barrel 16 is fixedly connected with a second driving motor 22 through a motor supporting table 21, the model of the second driving motor 22 is 1LE0001, the output end of the second driving motor 22 is fixedly connected with a rotating rod 23, the rotating rod 23 is in transmission connection with the rotating shaft 18 through a transmission belt group 24, the screening box 1 of the grinding barrel 16 is communicated through a communication pipeline 25, the inside recovery box 26 that is provided with of collecting box 2, the equal fixedly connected with shock attenuation post 27 in four corners of collecting box 2 lower surface, the fixed surface is connected with the air pump 28 on collecting box 2, the model of air pump 28 is 2X800W-50L, use through slide bar 11, reciprocating plate 12, cylinder 13, scraping wings 15 and milling barrel 16 cooperation, make the fodder pour into screening box 1 inside after, screen cloth 4 screens the fodder, the fine grain fodder falls into recovery box 26 inside, the coarse grain fodder is pushed inside the intercommunication pipeline 25 by scraping wings 15, grinding block 19 grinds the coarse grain fodder, the fodder after grinding falls into recovery box 26 inside, make the device can grind the coarse grain fodder of selecting, make the staff need not to clear up the coarse grain fodder, and the work efficiency is improved, through removing frame 3, screen cloth 4, cam 9, rotating pin 8, The sliding shaft 6 and the first spring 7 are matched for use, so that the rotating pin 8 drives the cam 9 to rotate, the cam 9 and the first spring 7 are matched for moving the moving frame 3 and the screen 4 to reciprocate back and forth, the screening efficiency of the screen 4 on the feed is further improved, the probability that the screen is blocked by the feed is further reduced, the fine-grained feed and the ground feed fall into the recovery box 26 by arranging the collecting box 2 and the recovery box 26, the feed is convenient for the recovery of the feed by workers, when the moving plate 14 and the pushing plate 15 move rightwards, the pushing plate 15 pushes out the coarse-grained feed, when the moving plate 14 and the pushing plate 15 move leftwards, the pushing plate 15 turns over anticlockwise due to the coarse-grained feed on the screen 4, and the coarse-grained feed is prevented from being accumulated on the left side of the screen 4 by the pushing plate 15, the smoothness of the device operation is improved, through setting up abrasive brick 19 and abrasive strip 20 for abrasive strip 20 on the abrasive brick 19 and the abrasive strip 20 on the milling barrel 16 mutually support and grind the coarse grain fodder, thereby further improved the grinding quality of abrasive brick 19 to the coarse grain fodder.

In the utility model, in order to further enhance the stability of the device during use, the shock-absorbing column 27 comprises a backing plate, the upper surface of the backing plate is fixedly connected with a support sleeve, the inner wall of the support sleeve is connected with a support block in a sliding manner, and a second spring is fixedly connected between the support block and the backing plate, so that the shock-absorbing column 27 plays a role in shock absorption and buffering on the bottom of the device, thereby further enhancing the stability of the device during use.

In the utility model, in order to further enhance the motion stability of the moving frame 3, the left side surface and the right side surface of the moving frame 3 are fixedly connected with T-shaped sliding strips, the inner walls of the screening box 1 and the fixed box 5 are respectively provided with a T-shaped sliding groove matched with the T-shaped sliding strips, and the T-shaped sliding strips are matched with the T-shaped sliding grooves, so that the motion stability of the moving frame 3 is further enhanced.

In the utility model, in order to further enhance the fluency of the movement of the sliding rod 11, a lubricating grease layer is arranged on the outer surface of the sliding rod 11, and the thickness of the lubricating grease layer on the outer surface of the sliding rod 11 is two to five millimeters at zero, so that the friction force between the sliding rod 11 and the screening box 1 is reduced, and the fluency of the movement of the sliding rod 11 is further enhanced.

In the present invention, in order to further enhance the stability of the rotation pin 8, ball bearings are provided on both the upper surface and the lower surface of the rear-side stationary box 5, and the rear-side stationary box 5 is rotatably connected to the rotation pin 8 by the ball bearings, thereby further enhancing the stability of the rotation pin 8 by providing the ball bearings.

In the utility model, in order to further enhance the motion stability of the cam 9, the outer surface of the rotating pin 8 is fixedly connected with a connecting key, the inner wall of the cam 9 is provided with a key slot matched with the connecting key, and the connecting key is matched with the key slot, so that the motion stability of the cam 9 is further enhanced.

In the utility model, in order to further enhance the supporting stability of the motor supporting platform 21, two groups of supporting rods are fixedly connected to the lower surface of the motor supporting platform 21, and the bottom ends of the supporting rods are fixedly connected with the outer surface of the grinding barrel 16, so that the supporting rods play a role in stably supporting the bottom of the motor supporting platform 21, thereby further enhancing the supporting stability of the motor supporting platform 21.

In the present invention, in order to further enhance the stability of the rotation rod 23, a support plate is rotatably connected to the top of the outer surface of the rotation rod 23, and the support plate is fixedly connected to the grinding barrel 16, so that the support plate can stably support the top of the rotation rod 23, thereby further enhancing the stability of the rotation rod 23.

In the utility model, in order to further enhance the stability of the movement of the sliding rod 11, a stabilizing lantern ring is slidably sleeved on the outer surface of the sliding rod 11, and the right side surface of the stabilizing lantern ring is fixedly connected with the left side surface of the screening box 1, so that the stabilizing lantern ring plays a role of stabilizing the movement track of the sliding rod 11, thereby further enhancing the stability of the movement of the sliding rod 11.

In the utility model, in order to further enhance the supporting stability of the fixing box 5, two groups of reinforcing ribs are fixedly connected to the lower surface of the fixing box 5, and the inner side surfaces of the reinforcing ribs are fixedly connected with the outer surface of the screening box 1, so that the reinforcing ribs play a role of stably supporting the bottom of the fixing box 5, thereby further enhancing the supporting stability of the fixing box 5.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

When the feed screening device is used, feed is poured into the screening box 1, the first driving motor 10 is started, the output end of the first driving motor 10 drives the rotating pin 8 to rotate, the rotating pin 8 drives the cam 9 to rotate, the cam 9 is matched with the first spring 7 to move the moving frame 3 and the screen 4 back and forth in a reciprocating mode, the screen 4 screens the feed, fine particle feed falls into the recovery box 26, the air cylinder 13 is started through the air pump 28 to enable the air cylinder 13 to stretch periodically, the air cylinder 13 drives the advancing plate 14 and the material pushing plate 15 to move through the reciprocating plate 12 and the sliding rod 11, when the advancing plate 14 and the material pushing plate 15 move rightwards, the material pushing plate 15 pushes the coarse particle feed into the communicating pipeline 25, when the advancing plate 14 and the material pushing plate 15 move leftwards, as the coarse particle feed exists on the screen 4, the material pushing plate 15 turns over anticlockwise, the coarse particle feed falls into the grinding barrel 16, the second driving motor 22 is started, the output of second driving motor 22 drives axis of rotation 18 and grinding block 19 through dwang 23 and driving band group 24 and rotates, and grinding strip 20 on the grinding block 19 and the grinding strip 20 on the grinding barrel 16 mutually support and grind coarse grained fodder, and the fodder falls into inside retrieving box 26 after grinding, will retrieve box 26 and take out, and then retrieve the fodder.

To sum up, this sow feed ingredient screening installation, through slide bar 11, reciprocal board 12, cylinder 13, scraping wings 15 and grinding barrel 16 cooperation are used, make the fodder pour into screening case 1 inside back into, screen cloth 4 screens the fodder, the fine grain fodder falls into and retrieves inside box 26, the coarse grain fodder is pushed into inside the intercommunication pipeline 25 by scraping wings 15, abrasive brick 19 grinds the coarse grain fodder, the fodder after the grinding falls into and retrieves inside box 26, make the device can grind the coarse grain fodder of selecting, make the staff need not to clear up the coarse grain fodder, and the work efficiency is improved.

This sow feed ingredient screening installation, through removing frame 3, the screen cloth 4, cam 9, the rotating pin 8, sliding shaft 6 and the cooperation of first spring 7 are used, make rotating pin 8 drive cam 9 and rotate, cam 9 moves frame 3 and screen cloth 4 reciprocating motion around with the cooperation of first spring 7, thereby the screening efficiency of screen cloth 4 to the fodder has further been improved, and the probability that the fodder blockked up the screen cloth has further been reduced, through setting up collecting box 2 and recovery box 26, make the fodder after fine grain fodder and the grinding fall into inside recovery box 26, thereby made things convenient for the recovery of staff to the fodder.

This sow feed ingredient screening installation, through setting up board 14 and scraping wings 15 of marcing, make board 14 and scraping wings 15 of marcing move when moving right, scraping wings 15 pushes out coarse grain fodder, when board 14 and scraping wings 15 move left of marcing, because there is coarse grain fodder on the screen cloth 4, scraping wings 15 turns over the anticlockwise, thereby avoided scraping wings 15 to pile up coarse grain fodder in the left side of screen cloth 4, the smoothness nature of the device operation has been improved, through setting up abrasive brick 19 and abrasive strip 20, make abrasive strip 20 on the abrasive brick 19 and the abrasive strip 20 on the milling bucket 16 mutually support and grind coarse grain fodder, thereby further improved the grinding quality of abrasive brick 19 to coarse grain fodder.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sow feed ingredient screening installation, includes screening case (1) and intercommunication collecting box (2) in screening case (1) bottom, its characterized in that: the inner wall of the screening box (1) is slidably inserted with a moving frame (3), the inner wall of the moving frame (3) is fixedly connected with a screen (4), the front surface and the back surface of the screening box (1) are communicated with fixed boxes (5), the front surface of the fixed box (5) positioned on the front side is slidably inserted with two groups of sliding shafts (6) fixedly connected with the moving frame (3), the outer surface of each sliding shaft (6) is sleeved with a first spring (7), the inner wall of the fixed box (5) positioned on the rear side is vertically and rotatably connected with a cam (9) through an inserted rotating pin (8), the back surface of the screening box (1) is fixedly connected with a first driving motor (10), the rotating pin (8) is fixedly connected with the output end of the first driving motor (10), the left side surface of the screening box (1) is slidably inserted with two groups of sliding rods (11), and the left end of each sliding rod (11) is fixedly connected with a reciprocating plate (12), the screening box (1) is positively provided with an air cylinder (13), the output end of the air cylinder (13) is fixedly connected with the right side surface of the reciprocating plate (12), the right end of the sliding rod (11) is fixedly connected with a traveling plate (14), the bottom of the traveling plate (14) is hinged with a material pushing plate (15), the upper surface of the collecting box (2) is communicated with a grinding barrel (16), the inner wall of the grinding barrel (16) is fixedly connected with a supporting frame (17), the inner wall of the supporting frame (17) is rotatably connected with a rotating shaft (18), the bottom end of the rotating shaft (18) is fixedly connected with a grinding block (19), the outer surface of the grinding block (19) and the inner wall of the grinding barrel (16) are both fixedly connected with a grinding strip (20), the rear side of the outer surface of the grinding barrel (16) is fixedly connected with a second driving motor (22) through an installation motor supporting table (21), and the output end of the second driving motor (22) is fixedly connected with a rotating rod (23), dwang (23) and axis of rotation (18) between be connected through drive belt group (24) transmission, grind through intercommunication pipeline (25) intercommunication between bucket (16) screening case (1), collecting box (2) inside is provided with retrieves box (26), the equal fixedly connected with shock attenuation post (27) in four corners of collecting box (2) lower surface, fixed surface is connected with air pump (28) on collecting box (2).

2. The sow feed ingredient screening device of claim 1, wherein: the shock absorption column (27) comprises a base plate, a supporting sleeve is fixedly connected to the upper surface of the base plate, a supporting block is connected to the inner wall of the supporting sleeve in a sliding mode, and a second spring is fixedly connected between the supporting block and the base plate.

3. The sow feedstuff screening device as claimed in claim 1, characterized in that: the equal fixedly connected with T shape draw runner of removal frame (3) left surface and right flank, the T shape spout with T shape draw runner looks adaptation is all seted up to the inner wall of screening case (1) and fixed box (5).

4. The sow feedstuff screening device as claimed in claim 1, characterized in that: the outer surface of the sliding rod (11) is provided with a lubricating grease layer, and the thickness of the lubricating grease layer on the outer surface of the sliding rod (11) is two or five millimeters at zero.

5. The sow feedstuff screening device as claimed in claim 1, characterized in that: the upper surface and the lower surface of the fixed box (5) positioned at the rear side are both provided with ball bearings, and the fixed box (5) positioned at the rear side is rotationally connected with the rotating pin (8) through the ball bearings.

6. The sow feedstuff screening device as claimed in claim 1, characterized in that: the outer surface of the rotating pin (8) is fixedly connected with a connecting key, and the inner wall of the cam (9) is provided with a key groove matched with the connecting key.

7. The sow feedstuff screening device as claimed in claim 1, characterized in that: the lower surface of the motor supporting table (21) is fixedly connected with two groups of supporting rods, and the bottom ends of the supporting rods are fixedly connected with the outer surface of the grinding barrel (16).

8. The sow feedstuff screening device as claimed in claim 1, characterized in that: the top of the outer surface of the rotating rod (23) is rotatably connected with a supporting plate, and the supporting plate is fixedly connected with the grinding barrel (16).

9. The sow feedstuff screening device as claimed in claim 1, characterized in that: the outer surface of the sliding rod (11) is slidably sleeved with a stabilizing lantern ring, and the right side face of the stabilizing lantern ring is fixedly connected with the left side face of the screening box (1).

10. The sow feedstuff screening device as claimed in claim 1, characterized in that: the lower surface of the fixed box (5) is fixedly connected with two groups of reinforcing ribs, and the inner side surfaces of the reinforcing ribs are fixedly connected with the outer surface of the screening box (1).