Hopper and plastic processing equipment

Abstract

The utility model relates to the technical field of plastic processing, in particular to a hopper and plastic processing equipment, which comprise a storage hopper, a crushing roller group, a cutter, a reciprocating component, an extrusion pipe, an air guide pipe and a transmission component. A feeding port communicated with the interior of the storage hopper is formed in the storage hopper, a guide plate is arranged on the side, close to the feeding port, in the storage hopper, and a discharging pipe communicated with the interior of the storage hopper is arranged at the bottom of the storage hopper. And the crushing roller group is arranged in the storage hopper. The cutter is in sliding connection with an upper cover of the storage hopper. The reciprocating assembly is in transmission connection with the crushing roller set and the cutter. The input end of the extrusion pipe communicates with the interior of the discharging pipe, a through hole is formed in the extrusion pipe, and a filter screen is arranged in the through hole. And the air guide pipe is communicated with the through hole. And a rotating shaft is rotationally arranged in the air guide pipe and is coaxially connected with the impeller. The transmission assembly is in transmission connection with the crushing roller set and the rotating shaft. Bulk plastic is cut into strips through the cutter which ascends and descends in a reciprocating mode, the large plastic is prevented from being transversely erected on the crushing roller set, and the plastic decomposition efficiency of equipment is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, and in particular to a hopper and plastic processing equipment. Background Technology

[0002] Plastics are recyclable materials. When processing recycled plastics, plastic pelletizers are typically used to reprocess waste plastics into granules for easier storage and reuse. However, the internal structure of the hopper in existing plastic pelletizers is relatively simple and needs improvement.

[0003] The technical solution disclosed in Chinese Patent No. CN212702300U involves setting a pointed arc-shaped blade and a crushing cone on a rotating shaft inside the hopper body. The raw material is first broken up or cone-crushed by the crushing cone, and then pulverized by the arc-shaped blade, resulting in more thorough mixing and better crushing effect. This also prevents clogging of the discharge port and facilitates continuous feeding. Guide plates are set on both sides of the rotating shaft to guide the raw material to the tip of the crushing cone or arc-shaped blade, initially refining the raw material before further pulverizing it by the arc-shaped blade, preventing the raw material from getting stuck between the crushing cone and the tip of the arc-shaped blade.

[0004] However, the device still has shortcomings: for large raw materials, it is easy for them to be placed horizontally between the guide plates on both sides, causing material blockage. Furthermore, when the device is used to crush lightweight materials, it is easy for debris to fly out. Utility Model Content

[0005] The purpose of this utility model is to address the problems existing in the background technology by proposing a hopper and plastic processing equipment.

[0006] The technical solution of this utility model is as follows: On the one hand, this utility model proposes a hopper, including a storage hopper, an inlet connected to the inside of the storage hopper, a guide plate on the side of the storage hopper near the inlet, and an outlet pipe connected to the inside of the storage hopper at the bottom.

[0007] The crushing roller assembly is located inside the storage hopper, and a motor A is installed on the storage hopper to drive the crushing roller assembly to rotate relative to each other.

[0008] The cutter is slidably connected to the top cover of the storage hopper, and the cutter is located above the guide plate.

[0009] And a reciprocating assembly, which drives the crushing roller assembly and the cutter to reciprocate and lift the cutter while the crushing roller assembly is in operation.

[0010] Preferably, the crushing roller assembly includes crushing roller A and crushing roller B, both of which are located inside the storage hopper and rotatably connected to the storage hopper. The roller shaft of crushing roller A is coaxially connected to gear A, and the roller shaft of crushing roller B is coaxially connected to gear B. Gear A and gear B mesh. The body of motor A is connected to the storage hopper, and the output end of motor A is connected to the roller shaft of crushing roller B.

[0011] Preferably, the reciprocating assembly includes a slide rod and a connecting rod. A groove is provided on the upper cover of the hopper, and a movable plate slidably connected to its inner wall is disposed within the groove. The top end of the cutter is connected to the movable plate. A pin A is disposed off-center from the axis of gear A. A turntable is coaxially connected to the end of the crushing roller A away from gear A. A pin B is disposed off-center from the axis of the turntable. The distance between pin A and the axis of the roller shaft and the distance between pin B and the axis of the roller shaft are equal. Two fixed seats are symmetrically disposed on the hopper. Two slide rods are slidably connected to the fixed seats on corresponding sides, and the top ends of the two slide rods are connected to the corresponding ends of the movable plate. Two connecting rods are rotatably connected to the slide rods on corresponding sides, and the ends of the two connecting rods away from the slide rods are rotatably connected to pin A and pin B, respectively.

[0012] On the other hand, this utility model also proposes a plastic processing device including the above-mentioned hopper, and further includes an extrusion tube.

[0013] The extrusion tube is located below the discharge tube, and its input end is connected to the interior of the discharge tube. A screw is slidably connected to the inner wall of the extrusion tube, and a motor B is mounted on the extrusion tube to drive the screw's rotation. A through-hole is provided at the input end of the extrusion tube, communicating with its interior, and a filter screen is installed inside the through-hole.

[0014] The air guide duct is connected to the outer wall of the extrusion tube, and its inlet end is connected to the through hole. A rotating shaft is installed inside the air guide duct and is rotatably connected to it. The rotating shaft is coaxially connected to the impeller.

[0015] And the transmission assembly, which drives the crushing roller assembly and the rotating shaft.

[0016] Preferably, a bracket is installed inside the air duct, and the rotating shaft is rotatably connected to the bracket.

[0017] Preferably, the transmission assembly includes pulley A, pulley B, and a toothed belt. Pulley A is coaxially connected to the roller shaft of crushing roller B, pulley B is coaxially connected to the rotating shaft, and pulley A and pulley B are connected by a toothed belt drive.

[0018] Preferably, heater A and heater B are sequentially arranged on the extrusion tube along the direction from its input end to its output end.

[0019] Compared with the prior art, the present invention has the following beneficial technical effects:

[0020] By setting up guide plates, the raw materials are guided between the crushing rollers on both sides. By setting up cutters, which are linked to the crushing rollers through reciprocating components, the cutters move up and down reciprocally when the crushing rollers are working. The cutters cut large pieces of raw materials into strips, preventing large pieces from directly entering the hopper and lying horizontally on the guide plates, thus avoiding material blockage. By setting up air guide pipes on the extrusion pipes, and setting up impellers inside the air guide pipes, the impellers are linked to the crushing roller group through transmission components. When the crushing rollers are working, the impellers rotate at high speed, thereby drawing air from near the feed inlet into the storage hopper and expelling it by the impellers, effectively preventing debris from splashing. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the storage hopper;

[0023] Figure 3 This is a schematic diagram of the connection structure between the crushing roller assembly and the cutter.

[0024] Figure 4 This is a schematic diagram of the connection structure of the various components on the extrusion tube.

[0025] Reference numerals in the attached drawings: 1. Storage hopper; 101. Feed inlet; 102. Guide plate; 2. Crushing roller A; 3. Gear A; 31. Turntable; 4. Crushing roller B; 5. Gear B; 6. Motor A; 7. Fixed base; 8. Slide rod; 9. Movable plate; 10. Cutter; 11. Connecting rod; 12. Discharge pipe; 13. Extrusion pipe; 131. Through hole; 14. Screw; 15. Motor B; 16. Heater A; 17. Heater B; 18. Air duct; 19. Support; 20. Rotating shaft; 21. Impeller; 22. Transmission assembly. Detailed Implementation

[0026] Example 1

[0027] like Figures 1-3As shown, the present invention proposes a hopper comprising a storage hopper 1, a crushing roller assembly, a cutter 10, and a reciprocating assembly. The storage hopper 1 has an inlet 101 communicating with its interior, and a guide plate 102 is provided on the side of the storage hopper 1 near the inlet 101. A discharge pipe 12 communicating with its interior is provided at the bottom of the storage hopper 1. The crushing roller assembly includes crushing roller A2 and crushing roller B4, both located inside the storage hopper 1 and rotatably connected to it. Gear A3 is coaxially connected to the roller shaft of crushing roller A2, and gear B5 is coaxially connected to the roller shaft of crushing roller B4. Gear A3 meshes with gear B5. The body of motor A6 is connected to the storage hopper 1, and the output end of motor A6 is connected to the roller shaft of crushing roller B4. The cutter 10 is slidably connected to the upper cover of the storage hopper 1, and is located above the guide plate 102. The reciprocating assembly includes a slide rod 8 and a connecting rod 11. A groove is provided on the upper cover of the storage hopper 1, and a movable plate 9 is slidably connected to the inner wall of the groove. The top of the cutter 10 is connected to the movable plate 9. A pin A is set off the axis of the gear A3. A turntable 31 is coaxially connected to the end of the crushing roller A2 away from the gear A3. A pin B is set off the axis of the turntable 31. The distance between pin A and the axis of the roller is equal to the distance between pin B and the axis of the roller. Two fixed seats 7 are symmetrically arranged on the storage hopper 1. Two sliding rods 8 are slidably connected to the fixed seats 7 on the corresponding sides, and the tops of the sliding rods 8 on both sides are connected to the corresponding ends of the movable plate 9. Two connecting rods 11 are rotatably connected to the sliding rods 8 on the corresponding sides, and the ends of the connecting rods 11 on both sides away from the sliding rods 8 are rotatably connected to pin A and pin B respectively. The reciprocating assembly drives the crushing roller group and the cutter 10 to drive the cutter 10 to reciprocate and rise and fall when the crushing roller group is working.

[0028] In this embodiment, the raw material is added into the storage hopper 1 through the feed inlet 101 and the equipment is started. At this time, the motor A6 drives the crushing roller B4 to rotate, which in turn drives the crushing roller A2 to rotate through the gears A3 and B5. The two crushing rollers rotate relative to each other, thereby tearing the raw material. While the crushing roller A2 is rotating, the gears A3 and the turntable 31 drive the connecting rod 11 to move, which in turn pushes and pulls the slide bar 8 back and forth through the connecting rod 11, thereby causing the cutter 10 to move up and down back and forth. The reciprocating cutter cuts large pieces of raw material into strips. The cut raw material will not get stuck between the two guide plates 102. Then the crushing rollers tear the raw material into pieces.

[0029] Example 2

[0030] like Figure 1 and Figure 4As shown, the plastic processing equipment with the aforementioned hopper proposed in this utility model, compared to Embodiment 1, further includes an extrusion pipe 13, a guide pipe 18, and a transmission assembly 22. The extrusion pipe 13 is located below the discharge pipe 12, and its input end communicates with the interior of the discharge pipe 12. A screw 14 is slidably connected to the inner wall of the extrusion pipe 13, and a motor B15 for driving the screw 14 to rotate is mounted on the extrusion pipe 13. A through hole 131 communicating with the interior of the extrusion pipe 13 is provided at its input end. A filter screen is installed inside the through hole 131, and the side of the filter screen inside the extrusion pipe 13 is curved, with the curvature of the curved surface matching the curvature of the inner wall of the extrusion pipe 13. The guide pipe 18 is connected to the outer wall of the extrusion pipe 13, and its input end communicates with the through hole 131. A support 19 is installed inside the guide pipe 18, and a rotating shaft 20 rotatably connected to the support 19 is installed inside the guide pipe 18. The rotating shaft 20 is coaxially connected to an impeller 21. The transmission assembly 22 includes pulley A, pulley B, and a toothed belt. Pulley A is coaxially connected to the roller shaft of crushing roller B4, and pulley B is coaxially connected to rotating shaft 20. Pulley A and pulley B are connected by a toothed belt drive. Heaters A16 and B17 are sequentially arranged on the extrusion tube 13 along the direction from its input end to its output end.

[0031] In this embodiment, the rotation of the crushing roller drives the impeller 21 to rotate at high speed through the pulley and toothed belt, thereby causing the air in the storage hopper 1 to be discharged along the discharge pipe 12, the extrusion pipe 13 and the air guide pipe 18. The airflow carries the crushed material in the storage hopper 1 into the extrusion pipe 13, where the crushed material is blocked by the filter screen 131. Subsequently, the crushed material gradually moves towards the output end of the extrusion pipe 13 under the propulsion of the screw 14. The crushed material melts after being heated by the heaters A16 and B17, and is then extruded into strips under pressure and granulated by the rotary cutter.

[0032] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A hopper, characterized in that, include The storage hopper (1) is provided with an inlet (101) communicating with its interior, and a guide plate (102) is provided on the side of the storage hopper (1) near the inlet (101), and a discharge pipe (12) communicating with its interior is provided at the bottom of the storage hopper (1). The crushing roller assembly is set inside the storage hopper (1), and a motor A (6) for driving the crushing roller assembly to rotate relative to each other is set on the storage hopper (1). The cutter (10) is slidably connected to the upper cover of the storage hopper (1), and the cutter (10) is located above the guide plate (102); And a reciprocating assembly, which drives the crushing roller assembly and the cutter (10) to reciprocate and lift the cutter (10) while the crushing roller assembly is in operation.

2. The hopper according to claim 1, characterized in that, The crushing roller assembly includes crushing roller A (2) and crushing roller B (4). Both crushing roller A (2) and crushing roller B (4) are located in the storage hopper (1) and are rotatably connected to the storage hopper (1). The roller shaft of crushing roller A (2) is coaxially connected to gear A (3), and the roller shaft of crushing roller B (4) is coaxially connected to gear B (5). Gear A (3) meshes with gear B (5). The body of motor A (6) is connected to the storage hopper (1), and the output end of motor A (6) is connected to the roller shaft of crushing roller B (4).

3. A hopper according to claim 2, characterized in that, The reciprocating assembly includes a slide bar (8) and a connecting rod (11); a groove is provided on the upper cover of the storage hopper (1), and a movable plate (9) is provided in the groove and slidably connected to its inner wall; the top of the cutter (10) is connected to the movable plate (9); a pin A is provided off-center from the axis of the gear A (3); a turntable (31) is coaxially connected to the roller shaft of the crushing roller A (2) at the end away from the gear A (3); a pin B is provided off-center from the axis of the turntable (31); and the pin A is connected to the roller shaft. The spacing between the centers and the spacing between the pin B and the roller shaft center are equal; two fixed seats (7) are symmetrically arranged on the storage hopper (1), and two sliding rods (8) are slidably connected to the fixed seats (7) on the corresponding sides respectively, and the top ends of the sliding rods (8) on both sides are connected to the corresponding ends of the movable plate (9); two connecting rods (11) are rotatably connected to the sliding rods (8) on the corresponding sides respectively, and the ends of the connecting rods (11) on both sides away from the sliding rods (8) are rotatably connected to the pin A and the pin B respectively.

4. A plastic processing apparatus, comprising the hopper according to any one of claims 1-3, characterized in that, It also includes the extrusion tube (13); The extrusion tube (13) is located below the discharge tube (12), and the input end of the extrusion tube (13) is connected to the interior of the discharge tube (12). A screw (14) is provided inside the extrusion tube (13) and is slidably connected to its inner wall. A motor B (15) for driving the screw (14) to rotate is provided on the extrusion tube (13). A through hole (131) is provided at the input end of the extrusion tube (13) and is connected to its interior. A filter screen is provided inside the through hole (131). The air duct (18) is connected to the outer wall of the extrusion pipe (13), and the input end of the air duct (18) is connected to the through hole (131); a rotating shaft (20) is provided inside the air duct (18) and is rotatably connected to it, and the rotating shaft (20) is coaxially connected to the impeller (21). And a transmission assembly (22), which drives the crushing roller assembly and the rotating shaft (20).

5. The plastic processing equipment according to claim 4, characterized in that, A bracket (19) is installed inside the air duct (18), and the rotating shaft (20) is rotatably connected to the bracket (19).

6. The plastic processing equipment according to claim 5, characterized in that, The transmission assembly (22) includes pulley A, pulley B and toothed belt; pulley A is coaxially connected to the roller shaft of crushing roller B (4), pulley B is coaxially connected to the rotating shaft (20), and pulley A and pulley B are connected by toothed belt transmission.

7. A plastic processing equipment according to claim 4, characterized in that, Heater A (16) and heater B (17) are sequentially arranged on the extrusion tube (13) along the direction from its input end toward its output end.

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