Feed grinder for breeding milk sheep and method thereof

Abstract

The invention belongs to the field of feed grinders, particularly relates to a feed grinder for breeding milk sheep and a method thereof, and provides the following scheme aiming at the problem that the uniformity of feed is relatively low due to the fact that an existing feed grinder for breeding the milk sheep is inconvenient to screen the ground feed. The crushing device comprises a crushing box, a crushing mechanism arranged in the crushing box and a first discharge hole formed in the bottom of the crushing box; the screening box is arranged at the bottom of the crushing box, a screen is arranged in the screening box and used for screening the feed, and a second discharging opening is formed in the bottom of the screening box; the moving seat is arranged on one side of the screening box; the two fixing plates are fixedly mounted on one side of the moving seat, and the same connecting shaft is rotationally mounted on the two fixing plates, raw materials can be conveniently screened, the uniformity of the raw materials is kept, the feeding hopper is discontinuously discharged, and the situation that the crushing effect is poor due to excessive raw materials is avoided; and after screening is finished, residual feed on the screen can be conveniently poured out from the rectangular outlet.

Description

Technical Field

[0001] The present invention relates to the technical field of feed grinders, in particular to a feed grinder for dairy sheep breeding and a method thereof. Background Art

[0002] A dairy sheep feed grinder is a mechanical device specifically designed for grinding dairy sheep feed. It offers high grinding efficiency and excellent dust removal, meeting the feed particle size requirements of dairy sheep farming while minimizing the impact of dust on the farming environment and animal health.

[0003] In the prior art, it is not convenient for dairy sheep breeding feed grinders to screen the crushed feed, resulting in low feed uniformity. Therefore, we propose a dairy sheep breeding feed grinder and method thereof to solve the above problem. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art feed grinder for dairy sheep breeding, which is that it is inconvenient to screen the crushed feed, resulting in low feed uniformity, and to propose a feed grinder for dairy sheep breeding and a method thereof.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A feed grinder for dairy sheep breeding, comprising:

[0007] A crushing box, a crushing mechanism arranged in the crushing box, and a first discharge port at the bottom;

[0008] The screening box is located at the bottom of the crushing box. A screen is provided inside the screening box for screening the feed. A second discharge port is provided at the bottom of the screening box.

[0009] The movable seat is arranged on one side of the screening box;

[0010] Two fixed plates are fixedly installed on one side of the movable seat, and the same connecting shaft is rotatably installed on the two fixed plates, and the outer side of the connecting shaft is fixedly connected to the screening box;

[0011] The bottom plate is arranged below the screening box, with a first support plate and a second support plate fixedly mounted on both sides of the bottom plate, and the movable seat is slidably mounted on the first support plate;

[0012] The rectangular outlet is located on one side of the screening box and is used to discharge impurities or large particles of feed remaining on the screen;

[0013] A blocking mechanism, provided on the second support plate, for blocking the rectangular outlet;

[0014] Two horizontal plates are fixedly mounted on the top of the first support plate and the second support plate, and the crushing box is fixedly connected to the two horizontal plates;

[0015] The screening mechanism is arranged on a horizontal plate and is used to drive the moving seat to continuously move back and forth horizontally;

[0016] The feed hopper is fixedly connected to the top of the crushing box;

[0017] The feed control mechanism is arranged on the crushing box and is used to control the feed speed of the feed hopper.

[0018] Preferably, the blocking mechanism includes a blocking plate, the outer side of the blocking plate contacts the inner wall of the rectangular outlet, and a rectangular transverse hole is provided on the second support plate, the outer side of the blocking plate contacts the inner wall of the rectangular transverse hole in sliding contact.

[0019] Preferably, a push plate is fixedly installed on one side of the blocking plate, a locking groove is provided on the top of the blocking plate, a socket is provided on the horizontal plate, a latch is installed in the socket, and the bottom end of the latch is clamped in the locking groove.

[0020] Preferably, the screening mechanism includes a push-pull plate slidably mounted on the transverse plate, a transverse plate is fixedly mounted on the top of the push-pull plate, and a connecting block is fixedly mounted on the top of the transverse plate.

[0021] Preferably, a first positioning plate is fixedly installed on one side of the crushing box, a first rotating rod is transmission-mounted on the first positioning plate, a first connecting rod is eccentrically fixedly installed on the bottom end of the first rotating rod, a second connecting rod is rotatably installed on the first connecting rod, and one end of the second connecting rod is rotatably connected to the connecting block.

[0022] Preferably, the crushing mechanism includes two crushing rollers rotatably installed in a crushing box, one end of one of the two crushing rollers is fixedly installed with a transmission rod, one end of the transmission rod is fixedly installed with a first bevel gear, the first bevel gear is meshed with a second bevel gear, the second bevel gear is fixedly installed on the top of the first rotating rod, and a motor is fixedly installed on the crushing box, and the output shaft of the motor is fixedly connected to the crushing roller.

[0023] Preferably, the feed control mechanism includes a baffle slidably mounted on one side of the crushing box, the top of the baffle contacts the bottom of the feed hopper, and one side of the baffle extends to the outside of the crushing box and is fixedly mounted with a reciprocating plate.

[0024] Preferably, a second positioning plate is fixedly mounted on one side of the crushing box, a second rotating rod is rotatably mounted on the second positioning plate, a third bevel gear is fixedly mounted on the bottom end of the second rotating rod, and the third bevel gear is meshed with the first bevel gear.

[0025] Preferably, a third connecting rod is eccentrically fixedly mounted on the top end of the second rotating rod, a fourth connecting rod is rotatably mounted on the third connecting rod, and one end of the fourth connecting rod is rotatably connected to the reciprocating plate.

[0026] The present invention also provides a method for using a feed grinder for dairy sheep breeding, comprising the following steps:

[0027] S1. When in use, the feed to be crushed is poured into the feed hopper, and the motor drives the crushing roller to rotate to crush the feed. The crushed feed enters the screening box from the first discharge port, and is screened by the screen. The uniform feed is discharged from the second discharge port, and the unqualified feed remains on the top of the screen;

[0028] S2. When the crushing roller rotates, it drives the transmission rod to rotate, the transmission rod drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the first rotating rod to rotate, the first rotating rod drives the first connecting rod to move eccentrically, the first connecting rod drives the second connecting rod to move, the second connecting rod drives the connecting block to move horizontally back and forth, the connecting block drives the transverse plate to move back and forth, the transverse plate drives the push-pull plate to move back and forth, the push-pull plate drives the moving seat to move back and forth, the moving seat drives the two fixed plates to move back and forth, the two fixed plates drive the connecting shaft to move back and forth, and then drives the screening box to move back and forth, thereby accelerating the screening efficiency of the screen;

[0029] S3, the first bevel gear drives the third bevel gear to rotate, the third bevel gear drives the second rotating rod to rotate, the second rotating rod drives the third connecting rod to eccentrically move, the third connecting rod drives the fourth connecting rod to move, the fourth connecting rod drives the reciprocating plate to move, and the reciprocating plate drives the baffle to move back and forth, so that the feed hopper discharging materials intermittently avoids excessive raw materials causing poor crushing effect;

[0030] S4. After the screening is completed, turn off the motor, unplug the plug, release the fixing of the blocking plate, and pull the blocking plate to the right by pushing the plate so that the blocking plate is separated from the rectangular outlet. At this time, the restriction on the screening box is released, so that the screening box rotates with the connecting shaft as the axis, and the feed remaining on the screen is poured out from the rectangular outlet.

[0031] In the present invention, the beneficial effects of the feed grinder and method for dairy sheep breeding are as follows:

[0032] The crushed feed is screened through the screen, and the uniform feed is discharged from the second discharge port, while the unqualified feed remains on the top of the screen; the push-pull plate drives the movable seat to move back and forth, the movable seat drives the two fixed plates to move back and forth, the two fixed plates drive the connecting shaft to move back and forth, and then drives the screening box to move back and forth, thereby accelerating the screening efficiency of the screen;

[0033] The first bevel gear drives the third bevel gear to rotate, the third bevel gear drives the second rotating rod to rotate, the second rotating rod drives the third connecting rod to eccentrically move, the third connecting rod drives the fourth connecting rod to move, the fourth connecting rod drives the reciprocating plate to move, and the reciprocating plate drives the baffle to move back and forth, so that the feed hopper discharging materials intermittently avoids excessive raw materials causing poor crushing effect;

[0034] After the screening is completed, turn off the motor, unplug the latch, release the fixing of the blocking plate, and pull the blocking plate to the right by pushing the plate to make the blocking plate separate from the rectangular outlet. At this time, the restriction on the screening box is released, so that the screening box rotates around the connecting shaft as the axis, and the feed remaining on the screen is poured out from the rectangular outlet;

[0035] The present invention facilitates screening of raw materials, maintains the uniformity of the raw materials, enables intermittent feeding of the feed hopper, avoids excessive raw materials leading to poor crushing effect, and facilitates pouring out the feed remaining on the screen from the rectangular outlet after screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic structural diagram of a feed grinder for dairy sheep farming and a method thereof proposed by the present invention;

[0037] Figure 2 The invention provides a feed crusher and method for dairy sheep breeding. Figure 1 Schematic diagram of the enlarged structure of part A;

[0038] Figure 3 This is a side structural schematic diagram of a movable base, a fixed plate and a connecting shaft of a feed grinder for dairy sheep breeding and a method thereof proposed in the present invention;

[0039] Figure 4 This is a schematic top view of the structure of a screening box and a blocking plate of a feed grinder for dairy sheep breeding and a method thereof proposed in the present invention;

[0040] Figure 5 This is a schematic diagram of the three-dimensional structure of the first rotating rod, the first connecting rod and the second connecting rod of a feed grinder for dairy sheep breeding and the method thereof proposed in the present invention.

[0041] In the figure: 1, bottom plate; 2, first support plate; 3, cross plate; 4, crushing box; 5, feed hopper; 6, first discharge port; 7, crushing roller; 8, motor; 9, movable seat; 10, fixed plate; 11, connecting shaft; 12, screening box; 13, screen; 14, second discharge port; 15, rectangular outlet; 16, blocking plate; 17, locking slot; 18, socket; 19, latch; 20, push plate; 21, spring; 22, push-pull plate; 23, Transmission rod; 24, first bevel gear; 25, first positioning plate; 26, first rotating rod; 27, first connecting rod; 28, second connecting rod; 29, connecting block; 30, transverse plate; 31, second positioning plate; 32, second rotating rod; 33, third bevel gear; 34, third connecting rod; 35, fourth connecting rod; 36, reciprocating plate; 37, baffle; 38, rectangular transverse hole; 39, second bevel gear; 40, collecting bucket; 41, second support plate. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0043] Example 1

[0044] Reference Figure 1-Figure 5 , a feed grinder for dairy sheep breeding, comprising:

[0045] A crushing box 4, a crushing mechanism provided in the crushing box 4, and a first discharge port 6 at the bottom;

[0046] A screening box 12 is provided at the bottom of the crushing box 4. A screen 13 is provided inside the screening box 12 for screening the feed. A second discharge port 14 is provided at the bottom of the screening box 12.

[0047] The movable seat 9 is provided on one side of the screening box 12;

[0048] Two fixed plates 10 are fixedly mounted on one side of the movable seat 9. The same connecting shaft 11 is rotatably mounted on the two fixed plates 10. The outer side of the connecting shaft 11 is fixedly connected to the screening box 12.

[0049] The bottom plate 1 is provided below the screening box 12. The first support plate 2 and the second support plate 41 are fixedly mounted on both sides of the bottom plate 1. The movable seat 9 is slidably mounted on the first support plate 2.

[0050] A rectangular outlet 15 is provided on one side of the screening box 12 for discharging impurities or large particles of feed remaining on the screen 13;

[0051] A blocking mechanism, provided on the second support plate 41, for blocking the rectangular outlet 15;

[0052] Two horizontal plates 3 are fixedly mounted on the top of the first support plate 2 and the second support plate 41, and the crushing box 4 is fixedly connected to the two horizontal plates 3;

[0053] The screening mechanism is provided on a horizontal plate 3 and is used to drive the movable seat 9 to continuously move back and forth horizontally;

[0054] The feed hopper 5 is fixedly connected to the top of the crushing box 4;

[0055] The feeding control mechanism is provided on the crushing box 4 and is used to control the feeding speed of the feeding hopper 5 .

[0056] In this embodiment, the blocking mechanism includes a blocking plate 16 , the outer side of the blocking plate 16 contacts the inner wall of the rectangular outlet 15 , and a rectangular transverse hole 38 is opened on the second support plate 41 , and the outer side of the blocking plate 16 slides in contact with the inner wall of the rectangular transverse hole 38 .

[0057] In this embodiment, a push plate 20 is fixedly installed on one side of the blocking plate 16, a locking groove 17 is provided on the top of the blocking plate 16, a socket 18 is provided on the horizontal plate 3, a latch 19 is installed in the socket 18, and the bottom end of the latch 19 is clamped in the locking groove 17.

[0058] In this embodiment, the screening mechanism includes a push-pull plate 22 slidably mounted on the transverse plate 3 , a transverse plate 30 is fixedly mounted on the top of the push-pull plate 22 , and a connecting block 29 is fixedly mounted on the top of the transverse plate 30 .

[0059] In this embodiment, a first positioning plate 25 is fixedly installed on one side of the crushing box 4, a first rotating rod 26 is transmission-mounted on the first positioning plate 25, a first connecting rod 27 is eccentrically fixedly installed on the bottom end of the first rotating rod 26, a second connecting rod 28 is rotatably installed on the first connecting rod 27, and one end of the second connecting rod 28 is rotatably connected to the connecting block 29.

[0060] In this embodiment, the crushing mechanism includes two crushing rollers 7 rotatably installed in the crushing box 4, one end of the two crushing rollers 7 is fixedly installed with a transmission rod 23, one end of the transmission rod 23 is fixedly installed with a first bevel gear 24, the first bevel gear 24 is meshed with a second bevel gear 39, the second bevel gear 39 is fixedly installed on the top of the first rotating rod 26, and the crushing box 4 is fixedly installed with a motor 8, and the output shaft of the motor 8 is fixedly connected to the crushing roller 7.

[0061] In this embodiment, the feed control mechanism includes a baffle 37 slidably mounted on one side of the crushing box 4, the top of the baffle 37 contacts the bottom of the feed hopper 5, and one side of the baffle 37 extends to the outside of the crushing box 4 and is fixedly mounted with a reciprocating plate 36.

[0062] In this embodiment, a second positioning plate 31 is fixedly installed on one side of the crushing box 4 , a second rotating rod 32 is rotatably installed on the second positioning plate 31 , a third bevel gear 33 is fixedly installed on the bottom end of the second rotating rod 32 , and the third bevel gear 33 is meshed with the first bevel gear 24 .

[0063] In this embodiment, a third connecting rod 34 is eccentrically fixedly mounted on the top end of the second rotating rod 32 , a fourth connecting rod 35 is rotatably mounted on the third connecting rod 34 , and one end of the fourth connecting rod 35 is rotatably connected to the reciprocating plate 36 .

[0064] The present invention also provides a method for using a feed grinder for dairy sheep breeding, comprising the following steps:

[0065] S1. When in use, the feed to be crushed is poured into the feed hopper 5, and the motor 8 drives the crushing roller 7 to rotate to crush the feed. The crushed feed enters the screening box 12 from the first discharge port 6, and is screened by the screen 13. The uniform feed is discharged from the second discharge port 14, and the unqualified feed remains on the top of the screen 13;

[0066] S2. When the crushing roller 7 rotates, it drives the transmission rod 23 to rotate, the transmission rod 23 drives the first bevel gear 24 to rotate, the first bevel gear 24 drives the second bevel gear 39 to rotate, the second bevel gear 39 drives the first rotating rod 26 to rotate, the first rotating rod 26 drives the first connecting rod 27 to move eccentrically, the first connecting rod 27 drives the second connecting rod 28 to move, the second connecting rod 28 drives the connecting block 29 to move horizontally reciprocatingly, the connecting block 29 drives the transverse plate 30 to move reciprocatingly, the transverse plate 30 drives the push-pull plate 22 to move reciprocatingly, the push-pull plate 22 drives the moving seat 9 to move reciprocatingly, the moving seat 9 drives the two fixed plates 10 to move reciprocatingly, the two fixed plates 10 drive the connecting shaft 11 to move reciprocatingly, and then drives the screening box 12 to move reciprocatingly, thereby accelerating the screening efficiency of the screen 13;

[0067] S3, the first bevel gear 24 drives the third bevel gear 33 to rotate, the third bevel gear 33 drives the second rotating rod 32 to rotate, the second rotating rod 32 drives the third connecting rod 34 to eccentrically move, the third connecting rod 34 drives the fourth connecting rod 35 to move, the fourth connecting rod 35 drives the reciprocating plate 36 to move, and the reciprocating plate 36 drives the baffle 37 to move back and forth, so that the feed hopper 5 discharging materials intermittently avoids excessive raw materials causing poor crushing effect;

[0068] S4. After the screening is completed, the motor 8 is turned off, the latch 19 is pulled out, the fixing of the blocking plate 16 is released, and the blocking plate 16 is pulled to the right by the push plate 20 so that the blocking plate 16 is separated from the rectangular outlet 15. At this time, the restriction on the screening box 12 is released, so that the screening box 12 rotates around the connecting shaft 11 as the axis, and the feed remaining on the screen 13 is poured out from the rectangular outlet 15.

[0069] Example 2

[0070] The difference between this embodiment and the first embodiment is that one end of a plurality of springs 21 is fixedly mounted on one side of the screening box 12, and the other ends of the plurality of springs 21 are fixedly connected to the top of the movable seat 9. Through the setting of the springs 21, when the restriction on the screening box 12 is released, the screening box 12 will not suddenly flip over and fall, and a certain pulling force is provided by the springs 21. A collecting bucket 40 is placed on the top of the bottom plate 1 for collecting uniform feed.

[0071] The rest is the same as that of the first embodiment.

[0072] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A feed grinder for dairy sheep breeding, characterized in that: include: A crushing box (4), a crushing mechanism arranged in the crushing box (4), and a first discharge port (6) at the bottom; A screening box (12) is provided at the bottom of the crushing box (4), a screen (13) is provided inside the screening box (12) for screening the feed, and a second discharge port (14) is provided at the bottom of the screening box (12); A movable seat (9) is provided on one side of the screening box (12); Two fixed plates (10) are fixedly mounted on one side of the movable seat (9); a same connecting shaft (11) is rotatably mounted on the two fixed plates (10); and the outer side of the connecting shaft (11) is fixedly connected to the screening box (12); A bottom plate (1) is provided below the screening box (12), a first support plate (2) and a second support plate (41) are fixedly mounted on both sides of the bottom plate (1), and a movable seat (9) is slidably mounted on the first support plate (2); A rectangular outlet (15) is provided on one side of the screening box (12) for discharging impurities or large particles of feed remaining on the screen (13); A blocking mechanism, provided on the second support plate (41), for blocking the rectangular outlet (15); Two transverse plates (3) are fixedly mounted on the top of the first support plate (2) and the second support plate (41), and the crushing box (4) is fixedly connected to the two transverse plates (3); The screening mechanism is provided on a horizontal plate (3) and is used to drive the movable seat (9) to continuously move back and forth horizontally; A feed hopper (5) is fixedly connected to the top of the crushing box (4); The feed control mechanism is arranged on the crushing box (4) and is used to control the feed speed of the feed hopper (5).

2. A feed grinder for dairy sheep breeding according to claim 1, characterized in that: The blocking mechanism comprises a blocking plate (16), the outer side of the blocking plate (16) contacts the inner wall of the rectangular outlet (15), and a rectangular transverse hole (38) is provided on the second support plate (41), and the outer side of the blocking plate (16) is in sliding contact with the inner wall of the rectangular transverse hole (38).

3. A feed grinder for dairy sheep breeding according to claim 2, characterized in that: A push plate (20) is fixedly mounted on one side of the blocking plate (16), a locking groove (17) is provided on the top of the blocking plate (16), a plug hole (18) is provided on the transverse plate (3), a latch (19) is installed in the plug hole (18), and the bottom end of the latch (19) is clamped with the locking groove (17).

4. A feed grinder for dairy sheep breeding according to claim 3, characterized in that: The screening mechanism comprises a push-pull plate (22) slidably mounted on a transverse plate (3), a transverse plate (30) fixedly mounted on the top of the push-pull plate (22), and a connecting block (29) fixedly mounted on the top of the transverse plate (30).

5. A feed grinder for dairy sheep breeding according to claim 4, characterized in that: A first positioning plate (25) is fixedly mounted on one side of the crushing box (4); a first rotating rod (26) is rotatably mounted on the first positioning plate (25); a first connecting rod (27) is eccentrically fixedly mounted on the bottom end of the first rotating rod (26); a second connecting rod (28) is rotatably mounted on the first connecting rod (27); and one end of the second connecting rod (28) is rotatably connected to a connecting block (29).

6. A feed grinder for dairy sheep breeding according to claim 5, characterized in that: The pulverizing mechanism comprises two pulverizing rollers (7) rotatably mounted in a pulverizing box (4); a transmission rod (23) is fixedly mounted on one end of one of the two pulverizing rollers (7); a first bevel gear (24) is fixedly mounted on one end of the transmission rod (23); a second bevel gear (39) is meshed with the first bevel gear (24); the second bevel gear (39) is fixedly mounted on the top end of a first rotating rod (26); a motor (8) is fixedly mounted on the pulverizing box (4); and an output shaft of the motor (8) is fixedly connected to the pulverizing roller (7).

7. A feed grinder for dairy sheep breeding according to claim 6, characterized in that: The feed control mechanism comprises a baffle (37) slidably mounted on one side of the crushing box (4), the top of the baffle (37) contacts the bottom of the feed hopper (5), and one side of the baffle (37) extends to the outside of the crushing box (4) and is fixedly mounted with a reciprocating plate (36).

8. A feed grinder for dairy sheep breeding according to claim 7, characterized in that: A second positioning plate (31) is fixedly mounted on one side of the crushing box (4), a second rotating rod (32) is rotatably mounted on the second positioning plate (31), a third bevel gear (33) is fixedly mounted on the bottom end of the second rotating rod (32), and the third bevel gear (33) is meshed with the first bevel gear (24).

9. A feed grinder for dairy sheep breeding according to claim 8, characterized in that: A third connecting rod (34) is eccentrically fixedly mounted on the top end of the second rotating rod (32), a fourth connecting rod (35) is rotatably mounted on the third connecting rod (34), and one end of the fourth connecting rod (35) is rotatably connected to the reciprocating plate (36).

10. A method for using a feed grinder for dairy sheep breeding, comprising a feed grinder, wherein the feed grinder is the feed grinder according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. When in use, feed to be crushed is poured into the feed hopper (5), and the crushing roller (7) is driven by the motor (8) to rotate to crush the feed. The crushed feed enters the screening box (12) from the first discharge port (6), and the crushed feed is screened through the screen (13). The uniform feed is discharged from the second discharge port (14), and the unqualified feed remains on the top of the screen (13); S2. When the crushing roller (7) rotates, the transmission rod (23) is driven to rotate, the transmission rod (23) drives the first bevel gear (24) to rotate, the first bevel gear (24) drives the second bevel gear (39) to rotate, the second bevel gear (39) drives the first rotating rod (26) to rotate, the first rotating rod (26) drives the first connecting rod (27) to move eccentrically, the first connecting rod (27) drives the second connecting rod (28) to move, the second connecting rod (28) drives the connecting block (29) to move horizontally back and forth, the connecting block (29) drives the transverse plate (30) to move back and forth, the transverse plate (30) drives the push-pull plate (22) to move back and forth, the push-pull plate (22) drives the moving seat (9) to move back and forth, the moving seat (9) drives the two fixed plates (10) to move back and forth, the two fixed plates (10) drive the connecting shaft (11) to move back and forth, and then drives the screening box (12) to move back and forth, thereby accelerating the screening efficiency of the screen (13); S3, the first bevel gear (24) drives the third bevel gear (33) to rotate, the third bevel gear (33) drives the second rotating rod (32) to rotate, the second rotating rod (32) drives the third connecting rod (34) to move eccentrically, the third connecting rod (34) drives the fourth connecting rod (35) to move, the fourth connecting rod (35) drives the reciprocating plate (36) to move, the reciprocating plate (36) drives the baffle (37) to move back and forth, so that the feed hopper (5) discontinues material, thereby avoiding excessive raw materials leading to poor crushing effect; S4. After the screening is completed, the motor (8) is turned off, the latch (19) is pulled out, the fixing of the blocking plate (16) is released, and the blocking plate (16) is pulled to the right by the push plate (20), so that the blocking plate (16) is separated from the rectangular outlet (15). At this time, the restriction on the screening box (12) is released, so that the screening box (12) rotates with the connecting shaft (11) as the axis, and the feed remaining on the screen (13) is poured out from the rectangular outlet (15).

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