Tooth roller crushing mechanism

Abstract

The utility model relates to the technical field of crushers, in particular to a tooth roller crushing mechanism which not only can prevent a silicon ingot from jumping when the silicon ingot is extruded by two groups of crushing rollers and improve the crushing efficiency, but also can screen crushed particles and secondarily crush unqualified large particles so as to ensure that the sizes of finished product particles are uniform. Comprising a crushing mechanism; the device further comprises a pressing mechanism, a screening mechanism, a conveying mechanism and multiple sets of carrying mechanisms, the pressing mechanism is installed on the crushing mechanism and prevents the silicon ingots from jumping between the rollers, the screening mechanism is installed on the crushing mechanism and screens crushed particles, the conveying mechanism is installed on the crushing mechanism, and the multiple sets of carrying mechanisms are all installed on the carrying mechanisms. And the conveying mechanism and the carrying mechanism are matched to convey overlarge particles into the crushing mechanism again for crushing.

Description

Technical Field

[0001] The utility model relates to the technical field of crushers, in particular to a toothed roller crushing mechanism. Background Art

[0002] Industrial silicon, also known as metallic silicon or crystalline silicon, is a non-metallic mineral. Its main use is as an additive to non-ferrous alloys to improve their mechanical strength, corrosion resistance and oxidation resistance. In the production of industrial silicon, the silicon ingots need to be cooled and then crushed, thus using a toothed roller crushing mechanism.

[0003] The existing tooth roller crushing mechanism, such as the roller crusher disclosed in the utility model patent with application number 201320199283.8, has a main structure including two substantially parallel rollers, which are arranged to rotate in opposite directions toward each other and separated by a gap, each roller having a first end and a second end, and the roller crusher includes a flange attached to at least one of the ends of one of the rollers, the flange extending in the radial direction of the roller and having a height exceeding the outer surface of the roller; when in use, the material to be crushed is conveyed to the roller crusher with the help of a feeding device and introduced into the hopper of the feeding device, and the material to be crushed is then fed into the gap between the two rollers of the roller crusher, the flange of the roller crusher helps to keep the material on the outer surface of the roller, and helps to increase the pressure of the gap between the rollers that forces the material to face over the entire width of the roller, especially at the edges of the roller, and when the material has been crushed with the help of two parallel rotating crushing rollers, it leaves the gap under the action of gravity so as to be conveyed out of the unit.

[0004] However, it is difficult for the existing crushing rollers to make the crushed industrial silicon of uniform size, making it difficult to utilize it later, and the silicon ingots can easily jump repeatedly between the two rollers, thus affecting the crushing efficiency. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a toothed roller crushing mechanism which can not only prevent the silicon ingot from jumping when being squeezed by two sets of crushing rollers, thereby improving the crushing efficiency, but also screen the crushed particles and perform secondary crushing on unqualified large particles, thereby ensuring that the finished particles are of uniform size.

[0006] The utility model discloses a toothed roller crushing mechanism, comprising a crushing mechanism; a pressing mechanism, a screening mechanism, a conveying mechanism and a plurality of transporting mechanisms, wherein the pressing mechanism is installed on the crushing mechanism and prevents the silicon ingot from jumping between rollers, the screening mechanism is installed on the crushing mechanism and screens the crushed particles, the conveying mechanism is installed on the crushing mechanism, and the plurality of transporting mechanisms are installed on the transporting mechanism, and the conveying mechanism and the transporting mechanism cooperate to transport the oversized particles to the crushing mechanism again for crushing; the silicon ingot is poured into the crushing mechanism, the pressing mechanism presses the silicon ingot downward to prevent the silicon ingot from jumping when being squeezed by two groups of crushing rollers, the silicon ingot is crushed by the crushing mechanism and falls onto the screening mechanism, the screening mechanism screens the crushed particles, the qualified particles are discharged, and the unqualified large particles are transported to the transporting mechanism, and the conveying mechanism drives the transporting mechanism to pour the large particles into the crushing mechanism again for crushing.

[0007] Preferably, the crushing mechanism includes a crushing drum, a feed hopper, a discharge pipe, a motor, a reducer, a transmission shaft, a commutator and two groups of crushing rollers. The crushing drum is installed on the ground, and a cavity is arranged inside the crushing drum. The bottom end of the feed hopper is connected to the top end of the crushing drum and the feed hopper is communicated with the inside of the cavity of the crushing drum. The top end of the discharge pipe is connected to the bottom end of the crushing drum and the discharge pipe is communicated with the inside of the cavity of the crushing drum. The motor is installed on the side wall of the crushing drum, the reducer is installed on the side wall of the crushing drum, the transmission shaft is rotatably installed on the reducer, the commutator is installed on the side wall of the crushing drum, and both groups of crushing rollers are rotatably installed in the cavity of the crushing drum; the silicon ingot enters the cavity of the crushing drum through the feed hopper, and the motor is started. The motor drives one group of crushing rollers to rotate counterclockwise through the reducer and drives the transmission shaft to rotate at the same time. The transmission shaft drives the other group of crushing rollers to rotate clockwise through the commutator. The two groups of crushing rollers rotate in opposite directions to crush the silicon ingot, and the silicon ingot is crushed into particles and then discharged from the device through the discharge pipe.

[0008] Preferably, the pressing mechanism includes a top plate, two groups of hydraulic cylinders, a bottom plate, an anti-skid cover and two groups of slide plates, the bottom end of the top plate is connected to the top of the feed hopper, and the feed port of the feed hopper is divided into two left and right parts, the top ends of the two groups of hydraulic cylinders are connected to the bottom end of the top plate, the top end of the bottom plate is connected to the bottom ends of the two groups of hydraulic cylinders, the top end of the anti-skid cover is connected to the bottom end of the top plate, the bottom end of the anti-skid cover is connected to the top of the bottom plate, and the two groups of slide plates are respectively installed on the left and right sides of the inside of the feed hopper; silicon ingots are manually poured into the left feed port of the feed hopper, and the silicon ingots pass through the left slide plate into the gap between the two groups of crushing rollers, and the hydraulic cylinder is started, and the hydraulic cylinder pushes the bottom plate down. The descent of the bottom plate exerts downward pressure on the silicon ingot to prevent the silicon ingot from jumping out, and the anti-skid cover is provided to prevent the silicon ingot from bouncing above the bottom plate and being difficult to discharge.

[0009] Preferably, the screening mechanism includes four groups of shock absorbers, four groups of shock absorbing springs, four groups of limit blocks, a filter plate, a rubber soft plate, two motors, a rotating shaft and two groups of vibration blocks. Four groups of sliding grooves are opened on the front and rear side walls of the crushing barrel, and the two groups of sliding grooves on the left are higher than the two groups of sliding grooves on the right. The bottom ends of the four groups of shock absorbers are connected to the bottom ends of the four groups of sliding grooves. The four groups of shock absorbing springs are respectively mounted on the four groups of shock absorbers. The four groups of limit blocks are slidably installed on the four groups of sliding grooves and the bottom ends of the four groups of limit blocks are respectively connected to the top ends of the four groups of shock absorbers. The filter plate is rotatably installed on the four groups of limit blocks. A chip discharge port is opened on the right side wall of the crushing barrel, and the right end of the filter plate extends out of the chip discharge port of the crushing barrel. , the rubber soft plate is installed on the right end surface of the filter plate and is located outside the chip discharge port of the crushing cylinder, the second motor is installed on the front side wall of the crushing cylinder, the shaft is rotatably installed in the cavity of the crushing cylinder and is located below the filter plate, and two sets of vibration blocks are installed on the shaft; the crushed particles fall onto the filter plate, and the qualified particles fall into the discharge pipe through the filter plate, and the large particles remain above the filter plate. Start the second motor, the second motor drives the shaft to rotate, and the shaft drives the vibration blocks to rotate. The two sets of vibration blocks continuously knock on the bottom of the filter plate to vibrate the filter plate, and the vibration of the filter plate drives the large particles to slide to the right, and the large particles slide out through the chip discharge port of the crushing cylinder.

[0010] Preferably, the conveying mechanism includes two sets of frames, three motors, two sets of conveying rollers and conveyor belts, the two sets of frames are respectively installed on the right side wall of the crushing drum, the three motors are installed on the frames, the two sets of conveying rollers are rotatably installed between the two sets of frames, and the conveyor belts are tensioned and installed between the two sets of conveying rollers; large particles fall onto the carrying mechanism, the three motors are started, the three motors drive the conveying rollers to rotate, the conveying rollers drive the conveyor belts to rotate, and the conveyor belts drive the carrying mechanism to convey upward, so as to facilitate the transportation of the large particles to the right side feed port of the feed hopper again.

[0011] Preferably, the carrying mechanism includes two groups of connecting blocks 1, two groups of cylinders 1, two groups of connecting blocks 2, a load box, two groups of ear buckles 1, two groups of cylinders 2 and two groups of ear buckles 2. The two groups of connecting blocks 1 are rotatably mounted on both sides of the conveyor belt, the two groups of cylinders 1 are respectively mounted on the two groups of connecting blocks 1, the bottom ends of the two groups of connecting blocks 2 are respectively connected to the top ends of the two groups of cylinders 1, the load box is rotatably mounted on the two groups of connecting blocks 2, the two groups of ear buckles 1 are both mounted on the conveyor belt, the two groups of cylinders 2 are respectively rotatably mounted on the two groups of ear buckles 1, and the two groups of ear buckles The two are installed on ear buckles two and are connected with two groups of cylinders two for rotation respectively; large particles fall onto the load box, and after the conveyor belt drives the load box to rise to the specified height, cylinder one pushes connecting block two, and connecting block two drives the load box to move to the top of the feed hopper, and then cylinder two extends to push ear buckle two upward, and ear buckle two pushes the load box upward, and the load box rotates along connecting block two, thereby pouring the large particles in the load box into the right feed port of the feed hopper for re-crushing, and then cylinder one and cylinder two drive the load box to reset.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the silicon ingot is poured into the crushing mechanism, the pressing mechanism presses the silicon ingot downward to prevent the silicon ingot from jumping when being squeezed by two sets of crushing rollers, the silicon ingot is crushed by the crushing mechanism and falls onto the screening mechanism, the screening mechanism screens the crushed particles, the qualified particles are discharged, and the unqualified large particles are transported to the carrying mechanism, and the transmission mechanism drives the carrying mechanism to pour the large particles into the crushing mechanism again for crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the cross-section axonometric structure of the crushing mechanism of the utility model;

[0015] Figure 3 It is a partially enlarged cross-sectional axonometric structural schematic diagram of the pressing mechanism of the utility model;

[0016] Figure 4 It is a partially enlarged axonometric structural schematic diagram of the screening mechanism of the utility model;

[0017] Figure 5 It is a partially enlarged cross-sectional axonometric structural schematic diagram of the screening mechanism of the utility model;

[0018] Figure 6 It is an axonometric structural diagram of the screening mechanism, the transmission mechanism and the carrying mechanism of the utility model.

[0019] Markings in the attached drawings: 01, crushing mechanism; 11, crushing cylinder; 12, feed hopper; 13, discharge pipe; 14, motor one; 15, reducer; 16, transmission shaft; 17, commutator; 18, crushing roller; 02, pressing mechanism; 21, top plate; 22, hydraulic cylinder; 23, bottom plate; 24, protective cover; 25, slide plate; 03, screening mechanism; 31, shock absorber; 32, shock absorbing spring; 33, limit block; 34, filter plate; 35, rubber soft plate; 36, motor two; 37, rotating shaft; 38, vibration block; 04, conveying mechanism; 41, frame; 42, motor three; 43, conveying roller; 44, conveyor belt; 05, carrying mechanism; 51, connecting block one; 52, cylinder one; 53, connecting block two; 54, load box; 55, ear buckle one; 56, cylinder two; 57, ear buckle two. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] Example 1

[0022] The utility model discloses a toothed roller crushing mechanism, comprising a crushing mechanism 01; a pressing mechanism 02, a screening mechanism 03, a conveying mechanism 04 and a plurality of transporting mechanisms 05, wherein the pressing mechanism 02 is mounted on the crushing mechanism 01 and prevents the silicon ingot from jumping between the rollers, the screening mechanism 03 is mounted on the crushing mechanism 01 and screens the crushed particles, the conveying mechanism 04 is mounted on the crushing mechanism 01, and the plurality of transporting mechanisms 05 are mounted on the transporting mechanism 05, and the conveying mechanism 04 and the transporting mechanism 05 cooperate to transport the oversized particles to the crushing mechanism 01 again for crushing; the crushing mechanism 01 comprises a crushing drum 11, a feed hopper 12, a discharge pipe 13, a motor 14, a reducer 15, a transmission shaft 16, a commutator 17 and two groups of crushing rollers 1 8. A crushing drum 11 is installed on the ground, a cavity is arranged inside the crushing drum 11, the bottom end of a feed hopper 12 is connected to the top end of the crushing drum 11 and the feed hopper 12 is communicated with the cavity inside the crushing drum 11, the top end of a discharge pipe 13 is connected to the bottom end of the crushing drum 11 and the discharge pipe 13 is communicated with the cavity inside the crushing drum 11, a motor 14 is installed on the side wall of the crushing drum 11, a reducer 15 is installed on the side wall of the crushing drum 11, a transmission shaft 16 is rotatably installed on the reducer 15, a commutator 17 is installed on the side wall of the crushing drum 11, and two groups of crushing rollers 18 are rotatably installed in the cavity of the crushing drum 11; the pressing mechanism 02 includes a top plate 21, two groups of hydraulic cylinders 22, a bottom plate 23, an anti-slip cover 24 and two groups of slide plates 25, the top plate 2 The bottom end of 1 is connected with the top end of the feed hopper 12, and the feed port of the feed hopper 12 is divided into two on the left and right sides. The top ends of the two groups of hydraulic cylinders 22 are connected with the bottom end of the top plate 21, the top end of the bottom plate 23 is connected with the bottom ends of the two groups of hydraulic cylinders 22, the top end of the anti-skid cover 24 is connected with the bottom end of the top plate 21, the bottom end of the anti-skid cover 24 is connected with the top end of the bottom plate 23, and the two groups of slide plates 25 are respectively installed on the left and right sides of the inside of the feed hopper 12; the screening mechanism 03 includes four groups of shock absorbers 31, four groups of shock absorbing springs 32, four groups of limit blocks 33, a filter plate 34, a rubber soft plate 35, a motor 36, a rotating shaft 37 and two groups of vibration blocks 38. Four groups of sliding grooves are opened on the front and rear side walls of the crushing barrel 11, and the two groups of sliding grooves on the left are higher than the two groups of sliding grooves on the right. The bottom ends of the four groups of shock absorbers 31 are connected to the bottom ends of the four groups of sliding grooves, the four groups of shock absorbing springs 32 are respectively mounted on the four groups of shock absorbers 31, the four groups of limit blocks 33 are slidably mounted on the four groups of sliding grooves and the bottom ends of the four groups of limit blocks 33 are respectively connected to the top ends of the four groups of shock absorbers 31, the filter plate 34 is rotatably mounted on the four groups of limit blocks 33, a chip discharge opening is opened on the right side wall of the crushing barrel 11, the right end of the filter plate 34 extends out of the chip discharge opening of the crushing barrel 11, the rubber soft plate 35 is mounted on the right end surface of the filter plate 34 and is located outside the chip discharge opening of the crushing barrel 11, the second motor 36 is mounted on the front side wall of the crushing barrel 11, the rotating shaft 37 is rotatably mounted in the cavity of the crushing barrel 11 and is located below the filter plate 34, and the two groups of vibration blocks 38 are both mounted on the rotating shaft 37;When it is working, firstly, silicon ingots are manually poured from the left feed port of the feed hopper 12, and the silicon ingots pass through the left slide plate 25 into the gap between the two groups of crushing rollers 18, and the hydraulic cylinder 22 is started, and the hydraulic cylinder 22 pushes the bottom plate 23 to descend, and the descending bottom plate 23 exerts downward pressure on the silicon ingot to prevent the silicon ingot from jumping out, and the anti-skid cover 24 is provided to prevent the silicon ingot from bouncing above the bottom plate 23 and being difficult to be discharged, and the motor 14 is started, and the motor 14 drives one group of crushing rollers 18 to rotate counterclockwise through the reducer 15, and drives the transmission shaft 16 to rotate at the same time, and the transmission shaft 16 drives the other group of crushing rollers 1 through the commutator 17 8 rotates clockwise, the two groups of crushing rollers 18 rotate in opposite directions to crush the silicon ingot, and the crushed particles fall onto the filter plate 34. Qualified particles pass through the filter plate 34 and fall into the discharge pipe 13. Large particles remain above the filter plate 34. The second motor 36 is started, and the second motor 36 drives the rotating shaft 37 to rotate. The rotating shaft 37 drives the vibration block 38 to rotate. The two groups of vibration blocks 38 continuously knock on the bottom of the filter plate 34 to vibrate the filter plate 34. The vibration of the filter plate 34 drives the large particles to slide to the right. The large particles slide out through the chip discharge port of the crushing cylinder 11, and qualified particles are discharged from the device through the discharge pipe 13. ;

[0023] Example 2

[0024] like Figures 1 to 6As shown, a toothed roller crushing mechanism of the utility model is based on Example 1; the conveying mechanism 04 includes two sets of frames 41, a motor 3 42, two sets of conveying rollers 43 and a conveyor belt 44, the two sets of frames 41 are respectively installed on the right side wall of the crushing cylinder 11, the motor 3 42 is installed on the frame 41, the two sets of conveying rollers 43 are rotatably installed between the two sets of frames 41, and the conveyor belt 44 is tensioned and installed between the two sets of conveying rollers 43; the carrying mechanism 05 includes two sets of connecting blocks 1 51, two sets of cylinders 1 52, two sets of connecting blocks 2 53, a load box 54, and two sets of ear buckles Two sets of connecting blocks 51 are rotatably mounted on both sides of the conveyor belt 44, two sets of connecting blocks 52 are respectively mounted on the two sets of connecting blocks 51, the bottom ends of the two sets of connecting blocks 53 are respectively connected to the top ends of the two sets of cylinders 52, the load box 54 is rotatably mounted on the two sets of connecting blocks 53, the two sets of ear buckles 55 are both mounted on the conveyor belt 44, the two sets of cylinders 56 are respectively rotatably mounted on the two sets of ear buckles 55, the two sets of ear buckles 57 are both mounted on the ear buckles 57 and are rotatably connected to the two sets of cylinders 56;When it is working, firstly, silicon ingot is manually poured into the feed port on the left side of the feed hopper 12, and the silicon ingot passes through the left side slide plate 25 and enters the gap between the two groups of crushing rollers 18, and the hydraulic cylinder 22 is started, and the hydraulic cylinder 22 pushes the bottom plate 23 to descend, and the descending bottom plate 23 generates downward pressure on the silicon ingot to prevent the silicon ingot from jumping out, and the anti-skid cover 24 is provided to prevent the silicon ingot from bouncing to the top of the bottom plate 23 and being difficult to discharge, and the motor 14 is started, and the motor 14 drives one group of crushing rollers 18 to rotate counterclockwise through the reducer 15, and drives the transmission shaft 16 to rotate at the same time, and the transmission shaft 16 drives the other group of crushing rollers 18 to rotate clockwise through the commutator 17, and the two groups of crushing rollers 18 rotate in opposite directions to crush the silicon ingot, and the crushed particles fall onto the filter plate 34, and the qualified particles fall into the discharge pipe 13 through the filter plate 34, and the large pieces of particles remain above the filter plate 34, and the motor 2 36 is started, and the motor 2 36 drives the shaft 37 to rotate, and the shaft 37 drives the vibration block 38 to rotate, and the two groups of vibration blocks 38 continuously knocks on the bottom of the filter plate 34 to make the filter plate 34 vibrate. The vibration of the filter plate 34 drives the large particles to slide to the right. The large particles slide out through the chip discharge port of the crushing cylinder 11. The qualified particles are discharged from the device through the discharge pipe 13. After being discharged, the large particles fall onto the load box 54. The motor 3 42 is started. The motor 3 42 drives the conveyor roller 43 to rotate. The conveyor roller 43 drives the conveyor belt 44 to rotate. The conveyor belt 44 drives the carrier mechanism 05 to transmit upward. The conveyor belt 44 drives After the load box 54 rises to the specified height, the cylinder 1 52 pushes the connecting block 2 53, and the connecting block 2 53 drives the load box 54 to move above the feed hopper 12, and then the cylinder 2 56 extends to push the ear button 2 57 upward, and the ear button 2 57 pushes the load box 54 upward, and the load box 54 rotates along the connecting block 2 53, so that the large particles in the load box 54 are poured into the right feed port of the feed hopper 12 for re-crushing, and then the cylinder 1 52 and the cylinder 2 56 drive the load box 54 to reset. ;

[0025] The motor 14, reducer 15, commutator 17, motor 2 36 and motor 3 42 of the utility model are purchased on the market. The technicians in the industry only need to install and operate them according to the accompanying instruction manuals without the need for the technicians in this field to make creative efforts.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A toothed roller crushing mechanism, comprising a crushing mechanism (01); characterized in that: It also includes a pressing mechanism (02), a screening mechanism (03), a conveying mechanism (04) and a plurality of transporting mechanisms (05), wherein the pressing mechanism (02) is mounted on the crushing mechanism (01) and prevents the silicon ingot from jumping between rollers, the screening mechanism (03) is mounted on the crushing mechanism (01) and screens the crushed particles, the conveying mechanism (04) is mounted on the crushing mechanism (01), and the plurality of transporting mechanisms (05) are mounted on the transporting mechanism (05), and the conveying mechanism (04) and the transporting mechanism (05) cooperate to transport oversized particles to the crushing mechanism (01) for crushing; The crushing mechanism (01) comprises a crushing drum (11), a feed hopper (12), a discharge pipe (13), a motor (14), a reducer (15), a transmission shaft (16), a commutator (17) and two sets of crushing rollers (18). The crushing drum (11) is installed on the ground. A cavity is arranged inside the crushing drum (11). The bottom end of the feed hopper (12) is connected to the top end of the crushing drum (11) and the feed hopper (12) is communicated with the cavity inside the crushing drum (11). The discharge pipe (13) is connected to the top end of the crushing drum (11). The top end of the crushing drum (13) is connected to the bottom end of the crushing drum (11) and the discharge pipe (13) is connected to the inner cavity of the crushing drum (11), the motor (14) is mounted on the side wall of the crushing drum (11), the reducer (15) is mounted on the side wall of the crushing drum (11), the transmission shaft (16) is rotatably mounted on the reducer (15), the commutator (17) is mounted on the side wall of the crushing drum (11), and the two sets of crushing rollers (18) are both rotatably mounted in the cavity of the crushing drum (11); The conveying mechanism (04) comprises two sets of frames (41), a third motor (42), two sets of conveying rollers (43) and a conveying belt (44). The two sets of frames (41) are respectively mounted on the right side wall of the crushing cylinder (11), the third motor (42) is mounted on the frames (41), the two sets of conveying rollers (43) are both rotatably mounted between the two sets of frames (41), and the conveying belt (44) is tensionedly mounted between the two sets of conveying rollers (43); The carrying mechanism (05) comprises two groups of connecting blocks (51), two groups of cylinders (52), two groups of connecting blocks (53), a load box (54), two groups of ear buckles (55), two groups of cylinders (56) and two groups of ear buckles (57). The two groups of connecting blocks (51) are respectively rotatably mounted on both sides of the conveyor belt (44), the two groups of cylinders (52) are respectively mounted on the two groups of connecting blocks (51), the bottom ends of the two groups of connecting blocks (53) are respectively connected to the top ends of the two groups of cylinders (52), the load box (54) is rotatably mounted on the two groups of connecting blocks (53), the two groups of ear buckles (55) are both mounted on the conveyor belt (44), the two groups of cylinders (56) are respectively rotatably mounted on the two groups of ear buckles (55), the two groups of ear buckles (57) are both mounted on the ear buckles (57) and are respectively rotatably connected to the two groups of cylinders (56).

2. A toothed roller crushing mechanism according to claim 1, characterized in that: The pressing mechanism (02) comprises a top plate (21), two groups of hydraulic cylinders (22), a bottom plate (23), an anti-skid cover (24) and two groups of slide plates (25). The bottom end of the top plate (21) is connected to the top end of the feed hopper (12), and the feed port of the feed hopper (12) is divided into two left and right parts. The top ends of the two groups of hydraulic cylinders (22) are connected to the bottom end of the top plate (21), the top end of the bottom plate (23) is connected to the bottom ends of the two groups of hydraulic cylinders (22), the top end of the anti-skid cover (24) is connected to the bottom end of the top plate (21), and the bottom end of the anti-skid cover (24) is connected to the top end of the bottom plate (23). The two groups of slide plates (25) are respectively installed on the left and right sides of the inside of the feed hopper (12).

3. A toothed roller crushing mechanism according to claim 1, characterized in that: The screening mechanism (03) comprises four groups of shock absorbers (31), four groups of shock absorbing springs (32), four groups of limit blocks (33), a filter plate (34), a rubber soft plate (35), a second motor (36), a rotating shaft (37) and two groups of vibration blocks (38). Four groups of sliding grooves are opened on the front and rear side walls of the crushing cylinder (11), and the two groups of sliding grooves on the left are higher than the two groups of sliding grooves on the right. The bottom ends of the four groups of shock absorbers (31) are connected to the bottom ends of the four groups of sliding grooves. The four groups of shock absorbing springs (32) are respectively mounted on the four groups of shock absorbers (31). The four groups of limit blocks (33) are slidably installed on the four groups of sliding grooves and the four groups of limit blocks (33) are ) are connected to the top ends of the four groups of shock absorbers (31) respectively, the filter plate (34) is rotatably mounted on the four groups of limit blocks (33), a chip discharge opening is opened on the right side wall of the crushing cylinder (11), the right end of the filter plate (34) extends out of the chip discharge opening of the crushing cylinder (11), the rubber soft plate (35) is mounted on the right end surface of the filter plate (34) and is located outside the chip discharge opening of the crushing cylinder (11), the second motor (36) is mounted on the front side wall of the crushing cylinder (11), the rotating shaft (37) is rotatably mounted in the cavity of the crushing cylinder (11) and is located below the filter plate (34), and the two groups of vibration blocks (38) are both mounted on the rotating shaft (37).

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