Pulverizer

Abstract

The invention discloses a pulverizer, and relates to the field of pulverizers, the pulverizer comprises a pulverizing mechanism, a feeding mechanism and a reprocessing mechanism, a pulverizing box is installed in the pulverizing mechanism, a pulverizing cutter is installed in the pulverizing box, and a screening mechanism is installed at the position, below the pulverizing cutter, in the pulverizing box; and one side of the screening mechanism is connected with a piston rod. The screening mechanism controls the piston rod to move, the piston rod controls the oil driving mechanism to operate, power is provided for the first chain transmission mechanism, the first chain transmission mechanism controls the reciprocating lead screw to rotate, and the reciprocating lead screw can drive the material distribution box to do translational motion when rotating; and therefore, in the moving process of the material distributing box, the plastic can be scattered into the smashing box through the material distributing barrel, the smashing box can conduct secondary smashing on the plastic which is not smashed completely, and the smashing effect of the plastic is effectively improved.

Description

Technical Field

[0001] The invention relates to the field of pulverizers, in particular to a pulverizer. Background Art

[0002] A pulverizer is a device widely used in many industries such as mining, building materials, chemicals, and food. It is mainly used to process granular materials into medium-fine powders of required diameter for subsequent processing or as finished products. The working principle of a pulverizer usually involves the material being accelerated by a jet feeder through the feed port, introduced into the pulverizing chamber, and pulverized by mutual collision, friction, shearing, and crushing under the drive of the rotating airflow. The fine powder is pushed to the central outlet pipe of the pulverizing chamber by the airflow, and finally discharged from the discharge port, while the coarse particles continue to be crushed.

[0003] The pulverizer can also be used to crush plastics. The plastic to be crushed is first transported to the crushing component through the feeding mechanism. The crushing component crushes the plastic into plastic particles. The plastic particles are then transported to the reprocessing equipment. The reprocessing equipment processes the plastic particles into other shapes through melting, shaping and other processes.

[0004] In the actual crushing process, the size of the plastic particles required by the reprocessing equipment is limited. If the particles are large, incomplete melting may occur later, which will affect the processing quality. Therefore, the particles need to be crushed again. The common method is to separate and collect the particles through a screen and then crush them again. This process is often carried out in a shutdown state, so it will affect the crushing efficiency of the crusher. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a crusher to solve the technical problem that general crushers cannot completely crush plastics, and the collection and re-crushing will affect the crushing efficiency of the crusher.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a crusher comprises a crushing mechanism, a feeding mechanism and a reprocessing mechanism, a crushing box is installed inside the crushing mechanism, a crushing knife is installed inside the crushing box, a screening mechanism is installed inside the crushing box below the crushing knife, one side of the screening mechanism is connected with a piston rod, an inner bottom wall of the crushing mechanism is located on one side of the crushing box and an oil-driven mechanism is installed, the piston rod is connected with the oil-driven mechanism, a reciprocating screw is rotatably arranged inside the crushing box above the crushing knife, the reciprocating screw is connected to the output end of the oil-driven mechanism through a first chain transmission mechanism, the outer wall of the reciprocating screw is threadedly connected with a distribution box, the inner wall of the distribution box is rotatably connected with a distribution barrel, a spiral guide rod is provided on the inner wall of the crushing box, the distribution box is slidably arranged on the outer wall of the spiral guide rod through a second chain transmission mechanism, the distribution barrel is connected with the second chain transmission mechanism, and the inner wall of the crushing box is located below the distribution barrel and is fixedly provided with an inclined plate.

[0007] The present invention is further configured such that the screening mechanism includes a vibrating screen and a guide rail, the vibrating screen is movably arranged inside a crushing box, a guide rail is arranged between the inner walls of the crushing box, the vibrating screen is movably arranged on the surface of the guide rail, and one side of the piston rod is connected to one side of the vibrating screen.

[0008] The present invention is further configured as follows: the oil-driven mechanism includes an oil pipeline, an oil extraction pipe, a first one-way valve, a second one-way valve, a pulsator mechanism and an oil tank; the oil tank is fixedly arranged on the inner bottom wall of the crushing mechanism; the oil outlet end of the oil tank is connected to the oil extraction pipe, one end of the oil extraction pipe is connected to the oil pipeline, and a first one-way valve is installed at the connection between the oil extraction pipe and the oil pipeline; the second one-way valve is installed on the inner wall of the oil pipeline on one side of the first one-way valve; one end of the oil pipeline is connected to the pulsator mechanism, and the output end of the pulsator mechanism is connected to the first chain transmission mechanism.

[0009] The present invention is further configured such that a discharge port is installed at the inner bottom of the crushing box, and the discharge port is connected to a reprocessing mechanism.

[0010] The present invention is further configured such that a storage box is fixedly provided on the inner bottom wall of the crushing box, the discharge end of the vibrating screen is connected to the feed end of the storage box, the discharge end of the storage box is connected to a screw feeder, and a temporary storage box is fixedly provided on the top of the crushing box, and the top of the temporary storage box is opposite to the discharge part of the screw feeder.

[0011] The present invention is further configured such that a baffle is movably provided at the bottom of the temporary storage box, a group of guide columns are provided on one side of the baffle, the guide columns penetrate the side walls of the temporary storage box and extend to the outside of the temporary storage box, a group of springs are provided on the outer wall of the temporary storage box, the springs are provided on the outer wall of the guide columns, and one end of the springs is connected to a fixed plate at one end of the guide columns.

[0012] The present invention is further configured such that four rotary knives are installed on the surface of the crushing knife.

[0013] The present invention is further configured such that a positioning plate is fixedly provided on the bottom of the baffle.

[0014] To sum up, the present invention mainly has the following beneficial effects: the present invention controls the movement of the piston rod through the screening mechanism, the piston rod controls the operation of the oil-driven mechanism, provides power for the first chain transmission mechanism, and the first chain transmission mechanism controls the rotation of the reciprocating screw. When the reciprocating screw rotates, it drives the distribution box to perform translational movement. Since the incompletely crushed plastic will enter the distribution box, the distribution box will scatter the plastic to the inside of the crushing box through the distribution barrel during the movement, so that the crushing box can perform secondary crushing on the incompletely crushed plastic, which effectively improves the crushing effect of the plastic. In addition, the screening process can also provide power for the unloading operation of the distribution box, reducing energy consumption and saving cost consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the plastic processing process structure of the present invention;

[0016] Figure 2 This is a cross-sectional view of the internal structure of the crushing box of the present invention;

[0017] Figure 3 This is a schematic diagram of the internal screening mechanism structure of the crushing box of the present invention;

[0018] Figure 4 This is a cross-sectional view of the internal structure of the oil-driven mechanism of the present invention;

[0019] Figure 5 It is a structural schematic diagram of the spiral feeder and the material distribution box of the present invention;

[0020] Figure 6 It is a schematic diagram of the motion structure of the material distribution box of the present invention;

[0021] Figure 7 It is a schematic diagram of the internal structure of the material distribution box of the present invention.

[0022] In the figure: 1. crushing mechanism; 2. feeding mechanism; 3. reprocessing mechanism; 4. crushing box; 5. crushing knife; 6. discharge port; 7. screw feeder; 8. temporary storage box; 9. distribution box; 10. vibrating screen; 11. guide rail; 12. oil pipeline; 13. piston rod; 14. oil pumping pipe; 15. first non-return valve; 16. second non-return valve; 17. impeller mechanism; 18. oil tank; 19. first chain transmission mechanism; 20. reciprocating screw; 21. baffle; 22. positioning plate; 23. guide column; 24. spring; 25. spiral guide rod; 26. second chain transmission mechanism; 27. storage box; 28. distribution barrel; 29. ​​inclined plate. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] A crushing machine, such as Figure 1-7 As shown, it includes a crushing mechanism 1, a feeding mechanism 2 and a reprocessing mechanism 3. The plastic to be crushed is transported to the crushing mechanism 1 by the feeding mechanism 2 for crushing. The feeding mechanism 2 is composed of a conveyor belt mechanism, which can transport the plastic from the bottom to the top. The plastic crushed by the crushing mechanism 1 enters the reprocessing mechanism 3, and the reprocessing mechanism 3 performs work such as melting and shaping on the plastic.

[0025] A crushing box 4 is installed inside the crushing mechanism 1, and a crushing knife 5 is installed inside the crushing box 4. Four rotary knives are installed on the surface of the crushing knife 5. A screening mechanism is installed below the crushing knife 5 inside the crushing box 4. The plastic is transported to the top of the crushing box 4 by the feeding mechanism 2, and falls into the crushing box 4 under the action of gravity. The crushing knife 5 crushes the plastic, and the crushing knife 5 is composed of four rotary knives, which can better perform the crushing work. The crushed plastic falls on the surface of the screening mechanism, and substandard plastic particles are separated by the screening mechanism.

[0026] The screening mechanism includes a vibrating screen 10 and a guide rail 11. The vibrating screen 10 is movably arranged inside the crushing box 4. The guide rail 11 is arranged between the inner walls of the crushing box 4. The vibrating screen 10 is movably arranged on the surface of the guide rail 11. A vibration motor is installed at the bottom of the vibrating screen 10. A discharge port 6 is installed at the inner bottom of the crushing box 4. The discharge port 6 is connected to the reprocessing mechanism 3. When the plastic particles fall on the surface of the vibrating screen 10, the vibration motor is started to make the vibrating screen 10 perform screening along the guide rail 11. The plastic particles that meet the requirements fall under the vibrating screen 10, are discharged from the discharge port 6, and enter the reprocessing mechanism 3 for corresponding reprocessing.

[0027] A storage box 27 is fixedly provided on the inner bottom wall of the crushing box 4, the discharge end of the vibrating screen 10 is connected to the feed end of the storage box 27, and the discharge end of the storage box 27 is connected to the screw feeder 7. A temporary storage box 8 is fixedly provided on the top of the crushing box 4, and the top of the temporary storage box 8 is directly opposite to the discharge part of the screw feeder 7. The plastic particles that do not meet the requirements are still above the vibrating screen 10. Since the vibrating screen 10 is in an inclined state, the plastic particles will continue to move in a reverse direction under the regular vibration of the vibration motor until they enter the storage box 27 from the discharge end of the vibrating screen 10, and the screw feeder 7 will transport the plastic particles to the interior of the upper temporary storage box 8 for secondary crushing.

[0028] One side of the piston rod 13 is connected to one side of the vibrating screen 10, and an oil-operated mechanism is installed on the inner bottom wall of the crushing mechanism 1 located on one side of the crushing box 4. Therefore, while the vibrating screen 10 is performing continuous screening action, the piston rod 13 will reciprocate and drive the oil-operated mechanism to start working.

[0029] The oil-driven mechanism includes an oil tank 18, which is fixedly arranged on the inner bottom wall of the crushing mechanism 1. The oil outlet end of the oil tank 18 is connected to an oil extraction pipe 14, one end of the oil extraction pipe 14 is connected to an oil delivery pipe 12, and a first non-return valve 15 is installed at the connection between the oil extraction pipe 14 and the oil delivery pipe 12. A second non-return valve 16 is installed on the inner wall of the oil delivery pipe 12 on one side of the first non-return valve 15. One end of the oil delivery pipe 12 is connected to a pulsator mechanism 17, and the output end of the pulsator mechanism 17 is connected to a first chain transmission mechanism 19. The piston rod 13 moves It is arranged inside the oil pipe 12. When the piston rod 13 makes reciprocating motion, under the restriction of the first one-way valve 15 and the second one-way valve 16, the hydraulic oil in the oil tank 18 will continuously enter the oil pipe 12 from the oil extraction pipe 14 under the action of atmospheric pressure, and enter the impeller mechanism 17 through the oil pipe 12. The reciprocating motion of the piston rod 13 will not cause the hydraulic oil to flow back. The hydraulic oil entering the impeller mechanism 17 will push the impeller inside the impeller mechanism 17 to start rotating, and at this time the first chain transmission mechanism 19 starts to rotate.

[0030] A reciprocating screw 20 is rotatably arranged inside the crushing box 4, located above the crushing knife 5. The reciprocating screw 20 is connected to the output end of the oil-driven mechanism through a first chain transmission mechanism 19. The outer wall of the reciprocating screw 20 is threadedly connected to a distribution box 9, and the inside of the distribution box 9 is rotatably connected to a distribution barrel 28. Therefore, when the first chain transmission mechanism 19 starts to rotate, the reciprocating screw 20 rotates synchronously, and at this time, the distribution box 9 can move laterally along the outer wall of the reciprocating screw 20.

[0031] A baffle 21 is movably provided at the bottom of the temporary storage box 8, and a group of guide columns 23 are provided on one side of the baffle 21. The guide columns 23 penetrate the side walls of the temporary storage box 8 and extend to the outside of the temporary storage box 8. A group of springs 24 are provided on the outer wall of the temporary storage box 8. The springs 24 are provided on the outer walls of the guide columns 23, and one end of the springs 24 is connected to the fixed plate at one end of the guide columns 23. A positioning plate 22 is fixedly provided at the bottom of the baffle 21. In the initial state, the plastic falling into the temporary storage box 8 is blocked by the baffle 21 under the action of the spring 24. When the distribution box 9 moves laterally toward the temporary storage box 8, the distribution box 9 will push the positioning plate 22 to move forward, and the baffle 21 will move forward accordingly. At this time, the baffle 21 no longer blocks the plastic inside the temporary storage box 8, and the plastic will directly fall into the surface trough of the distribution cylinder 28 in the distribution box 9, ready for subsequent distribution work.

[0032] The inner wall of the crushing box 4 is provided with a spiral guide rod 25, and the distribution box 9 is slidably arranged on the outer wall of the spiral guide rod 25 through the second chain transmission mechanism 26. The distribution barrel 28 is connected to the second chain transmission mechanism 26. The inner wall of the crushing box 4 is located below the distribution barrel 28 and is fixedly provided with an inclined plate 29. The sprocket part of the second chain transmission mechanism 26 is connected to the outer wall of the spiral guide rod 25. The inner wall of the sprocket part is provided with a guide block. The guide block is matched with the spiral pattern of the outer wall of the spiral guide rod 25. Therefore, when the distribution box 9 makes a lateral movement The guide block will rotate under the guidance restriction of the spiral pattern, and the sprocket part will rotate accordingly. At this time, the second chain transmission mechanism 26 is in operation, driving the distribution barrel 28 to rotate synchronously. Since a plurality of material grooves are provided on the surface of the distribution barrel 28, the plastic particles in the material grooves can be scattered onto the surface of the inclined plate 29 while rotating. The inclined plate 29 facilitates the flow of the plastic particles to the crushing mechanism 1, and since the outer wall of the distribution barrel 28 fits with the bottom of the distribution box 9, the plastic particles will be scattered out only when the distribution barrel 28 rotates.

[0033] Furthermore, the inner bottom wall of the distribution box 9 is inclined, and a distribution barrel 28 is installed at the bottom. Therefore, when plastic particles enter the distribution box 9, the plastic particles will continue to flow to the position of the distribution barrel 28, further improving the discharge efficiency of the plastic particles.

[0034] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A pulverizer, comprising a pulverizing mechanism (1), a feeding mechanism (2) and a reprocessing mechanism (3), characterized in that: A crushing box (4) is installed inside the crushing mechanism (1), a crushing knife (5) is installed inside the crushing box (4), a screening mechanism is installed inside the crushing box (4) below the crushing knife (5), one side of the screening mechanism is connected to a piston rod (13), an oil-driven mechanism is installed on the inner bottom wall of the crushing mechanism (1) located on one side of the crushing box (4), the piston rod (13) is connected to the oil-driven mechanism, a reciprocating screw rod (20) is rotatably installed inside the crushing box (4) above the crushing knife (5), the reciprocating screw rod (20) is connected to the output of the oil-driven mechanism The ends are connected by a first chain transmission mechanism (19); the outer wall of the reciprocating screw rod (20) is threadedly connected to a distribution box (9); the inside of the distribution box (9) is rotatably connected to a distribution barrel (28); the inner wall of the crushing box (4) is provided with a spiral guide rod (25); the distribution box (9) is slidably arranged on the outer wall of the spiral guide rod (25) through a second chain transmission mechanism (26); the distribution barrel (28) is connected to the second chain transmission mechanism (26); the inner wall of the crushing box (4) is located below the distribution barrel (28) and is fixedly provided with an inclined plate (29).

2. A pulverizer according to claim 1, characterized in that: The screening mechanism comprises a vibrating screen (10) and a guide rail (11); the vibrating screen (10) is movably arranged inside a crushing box (4); the guide rail (11) is arranged between the inner walls of the crushing box (4); the vibrating screen (10) is movably arranged on the surface of the guide rail (11); and one side of the piston rod (13) is connected to one side of the vibrating screen (10).

3. A pulverizer according to claim 1, characterized in that: The oil-driven mechanism comprises an oil delivery pipe (12), an oil extraction pipe (14), a first non-return valve (15), a second non-return valve (16), a pulsator mechanism (17) and an oil tank (18). The oil tank (18) is fixedly arranged on the inner bottom wall of the pulverizing mechanism (1). The oil outlet end of the oil tank (18) is connected to the oil extraction pipe (14). One end of the oil extraction pipe (14) is connected to the oil delivery pipe (12). The first non-return valve (15) is installed at the connection between the oil extraction pipe (14) and the oil delivery pipe (12). The second non-return valve (16) is installed on the inner wall of the oil delivery pipe (12) at one side of the first non-return valve (15). One end of the oil delivery pipe (12) is connected to the pulsator mechanism (17). The output end of the pulsator mechanism (17) is connected to the first chain transmission mechanism (19).

4. A pulverizer according to claim 1, characterized in that: The inner bottom of the crushing box (4) is provided with a discharge port (6), and the discharge port (6) is connected to the reprocessing mechanism (3).

5. A pulverizer according to claim 2, characterized in that: A storage box (27) is fixedly arranged on the inner bottom wall of the crushing box (4); the discharge end of the vibrating screen (10) is connected to the feed end of the storage box (27); the discharge end of the storage box (27) is connected to a screw feeder (7); a temporary storage box (8) is fixedly arranged on the top of the crushing box (4); the top of the temporary storage box (8) is directly opposite to the discharge part of the screw feeder (7).

6. A pulverizer according to claim 5, characterized in that: A baffle (21) is movably provided at the bottom of the temporary storage box (8); a group of guide columns (23) are provided on one side of the baffle (21); the guide columns (23) penetrate the side wall of the temporary storage box (8) and extend to the outside of the temporary storage box (8); a group of springs (24) are provided on the outer wall of the temporary storage box (8); the springs (24) are provided on the outer wall of the guide columns (23), and one end of the springs (24) is connected to a fixing plate at one end of the guide columns (23).

7. A pulverizer according to claim 1, characterized in that: Four rotating knives are installed on the surface of the crushing knife (5).

8. A pulverizer according to claim 6, characterized in that: A positioning plate (22) is fixedly arranged at the bottom of the baffle (21).

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