Feeding device for plastic granulator

Abstract

The utility model relates to the technical field of conveying devices, in particular to a feeding device for a plastic granulator, which comprises a frame, a negative pressure dust collection component, a spiral pushing component, a drum, a transmission component and a storage hopper. A material guide pipe with end covers at the two ends is arranged on the rack, a feeding pipe and a discharging pipe are arranged on the material guide pipe, and a dust collection cover communicated with the interior of the material guide pipe is arranged on the material guide pipe; the negative pressure dust collection assembly is arranged on the rack, and the input end of the negative pressure dust collection assembly communicates with the dust collection cover; the spiral pushing assembly is arranged in the material guide pipe; the rotating drum is arranged in the discharging pipe and is rotationally connected with the inner wall of the discharging pipe, and a plurality of receiving grooves are formed in the arc surface of the rotating drum around the axis of the rotating drum in an annular array; the transmission assembly is in transmission connection with the spiral pushing assembly and the rotary drum; the storage hopper is arranged on the rack, and the output end of the storage hopper communicates with the interior of the feeding pipe. The airflow direction is constant, so that raw materials in the storage hopper are promoted to enter the material guide pipe in the dust removal process, and the blockage of the feeding pipe is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to conveying device technical field, in particular to a kind of feeding device for plastic granulator. BACKGROUND

[0002] Plastic belongs to renewable resources, in the process of plastic reprocessing, raw materials need to be broken by using crusher, and then the broken raw materials are added into plastic granulator for granulation processing, at this time, feeding device needs to be used, but because the dust and other dirt contained in recycled plastic are more, therefore, the plastic of broken block needs to be treated for dust removal, to avoid affecting the quality of plastic particles.

[0003] The Chinese patent with the authorization announcement number CN220482252U discloses a technical solution in which the fan sucks dust through the third connecting pipe and the upper box, and the dust is filtered inside the filter box, realizing the functions of simultaneous conveying and dust removal and improving the processing efficiency.

[0004] However, the device still has the following deficiencies: the device has a single function, and only increases the dust removal function in the process of conveying raw materials. Since the feeding pipe is always connected with the outside through the discharge cylinder, once the feeding cylinder is blocked, the outside air can enter the feeding pipe through the discharge cylinder, resulting in the lack of the function of dredging the inside of the feeding cylinder. UTILITY MODEL CONTENT

[0005] The utility model aims at the problems in the background art and provides a feeding device for plastic granulator.

[0006] The technical scheme of the utility model: a feeding device for plastic granulator, comprising a rack, a guide pipe with end covers at both ends is arranged on the rack, a feeding pipe and a discharge pipe are arranged on the guide pipe, and a dust collecting hood communicating with the inside of the guide pipe is arranged above the discharge pipe on the guide pipe;

[0007] A negative pressure dust collection assembly is arranged on the rack, and the input end of the negative pressure dust collection assembly communicates with the dust collecting hood.

[0008] A spiral pushing assembly is arranged in the guide pipe.

[0009] A rotating drum is arranged in the discharge pipe and rotationally connected with the inner wall thereof, and a plurality of material receiving grooves are arranged in annular array on the arc surface of the rotating drum around the shaft.

[0010] A transmission assembly is transmissionally connected with the spiral pushing assembly and the rotating drum.

[0011] A storage hopper is arranged on the rack, and the output end of the storage hopper communicates with the inside of the feeding pipe.

[0012] Preferably, the feeding pipe is provided with a feeding hole, a discharging hole and a through hole, the feeding pipe is arranged outside the feeding hole, the discharging pipe is arranged outside the discharging hole, the through hole is opposite to the discharging hole with respect to the axis of the feeding pipe, and the dust collecting cover is arranged outside the through hole.

[0013] Preferably, the negative pressure dust collection assembly comprises a collecting box and a fan, the collecting box and the fan are arranged on the frame, the collecting box is provided with a filter which is slidably connected to the collecting box, the collecting box is provided with an air inlet and an air outlet, the air inlet and the air outlet are respectively located on the upper side and the lower side of the filter, the collecting box is provided with a gas collecting pipe outside the air inlet, one end of the gas collecting pipe is inserted into the dust collecting cover and communicates with the inside of the dust collecting cover, and the fan is arranged on the frame, an input end of the fan is provided with a suction pipe, and the other end of the suction pipe is inserted into the air outlet.

[0014] Preferably, the spiral pushing assembly comprises an auger and a motor, the auger is arranged in the feeding pipe and is rotatably connected to the end cover, the body of the motor is connected to one of the side end covers, and the output end of the motor is connected to the central shaft of the auger.

[0015] Preferably, the transmission assembly comprises a belt pulley A, a belt pulley B and a toothed belt, the belt pulley A is coaxially connected to the central shaft of the auger, the belt pulley B is coaxially connected to the rotating drum, and the toothed belt is transmissionally connected to the belt pulley A and the belt pulley B.

[0016] Preferably, two guide plates are symmetrically arranged in the discharging pipe, arc-shaped grooves are arranged on the side of the guide plates which are close to each other, and the rotating drum is located on the inner side of the arc-shaped grooves and is slidably connected to the inner wall of the arc-shaped grooves.

[0017] Preferably, a limiting rod is arranged on the inner side of the opening of each material receiving groove, an arc-shaped plate which slides along the inner wall of each material receiving groove in a radial direction is arranged in each material receiving groove, the arc surface of the arc-shaped plate is consistent with the arc surface of the rotating drum, and a limiting groove which is matched with the limiting rod is arranged on the arc surface of the arc-shaped plate.

[0018] Preferably, a barrel cover is arranged on the storage hopper, a flip cover which is rotatably connected to the barrel cover is arranged on one side of the barrel cover, a hollow shaft which is rotatably connected to the barrel cover is arranged on the barrel cover, a spiral plate is arranged on the hollow shaft, the spiral plate is inserted into the feeding pipe, the hollow shaft communicates with the feeding pipe and the storage hopper, and a driving assembly which drives the hollow shaft to rotate is arranged on the barrel cover.

[0019] Preferably, the driving assembly comprises a dustproof cover, a wind wheel, a gear A and a gear B, the dustproof cover is arranged on the barrel cover, an air inlet is arranged on the dustproof cover, a dustproof net is arranged on the inner side of the air inlet, the top end of the hollow shaft is inserted into the dustproof cover and communicates with the inside of the dustproof cover, a rotating shaft which is rotatably connected to the barrel cover is arranged in the dustproof cover, the wind wheel is located in the dustproof cover and is coaxially connected to the rotating shaft, the air inlet is towards the blades of the wind wheel, the gear A is coaxially connected to the rotating shaft, the gear B is coaxially connected to the hollow shaft, and the gear A is engaged with the gear B.

[0020] Compared with the prior art, the utility model has the beneficial technical effects that:

[0021] By setting dust cover, collection box and fan, and setting guide plate and rotating drum in the discharge pipe, the rotating drum and the material receiving groove are arranged in the form of annular array around the shaft, and the material is discharged through the rotating drum and the material receiving groove, which can effectively prevent external air from entering the guide pipe along the discharge pipe, so that the fan can only enter the guide pipe along the storage hopper and the feeding pipe in the working state, and then the clogged raw materials in the pipe hole are sucked into the guide pipe through the circulation of air, the efficiency of the raw materials entering the guide pipe is improved, and the hollow shaft and the driving assembly are arranged, in the state that air flows along the inside of the hollow shaft, the air drives the wind wheel to rotate, and then drives the hollow shaft and the spiral plate to rotate, and then the spiral plate is further dredged through the rotating spiral plate. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic view of an embodiment in the utility model;

[0023] Figure 2 It is a connecting structure schematic view of the guide pipe and the storage hopper;

[0024] Figure 3 It is a schematic view of the internal structure of the discharge pipe;

[0025] Figure 4 It is a connecting structure schematic view of each component on the rotating drum;

[0026] Figure 5 It is a connecting structure schematic view of the driving assembly and the hollow shaft.

[0027] The drawings show that 1 is a rack, 2 is a guide pipe, 201 is a through hole, 3 is an auger, 4 is a motor, 5 is a feeding pipe, 6 is a discharge pipe, 7 is a guide plate, 8 is a rotating drum, 81 is a material receiving groove, 82 is a limiting rod, 83 is an arc plate, 9 is a transmission assembly, 10 is a dust cover, 11 is a gas collecting pipe, 12 is a collection box, 13 is a filter, 14 is a fan, 15 is a storage hopper, 16 is a bucket cover, 17 is a flip cover, 18 is a dust cover, 181 is an air inlet, 19 is a hollow shaft, 20 is a spiral plate, 21 is a driving assembly, 211 is a wind wheel, 212 is a gear A, and 213 is a gear B. DETAILED DESCRIPTION

[0028] Embodiment one

[0029] As Figures 1-5As shown, the utility model provides a kind of feeding device for plastic granulator, including frame 1, negative pressure dust collection component, spiral pushing component, rotating drum 8, transmission component 9 and storage hopper 15. Frame 1 is provided with the guide pipe 2 of both ends with end cap, guide pipe 2 is provided with feed pipe 5 and discharge pipe 6, and guide pipe 2 is provided with dust collecting hood 10 communicated with guide pipe 2 inside above discharge pipe 6. Feed hole, discharge hole and through hole 201 are provided on guide pipe 2, feed pipe 5 is covered and arranged outside feed hole, discharge pipe 6 is covered and arranged outside discharge hole, through hole 201 is opposite about the axis of guide pipe 2 with discharge hole, dust collecting hood 10 is covered and arranged outside through hole 201. Negative pressure dust collection component includes collection box 12 and fan 14. Collection box 12 and fan 14 are all arranged on frame 1, filter 13 is slidably connected in collection box 12, suction port and exhaust port are arranged on collection box 12, suction port and exhaust port are located on the upside and downside of filter 13 respectively, gas collecting pipe 11 is covered and arranged outside suction port on collection box 12, another end of gas collecting pipe 11 is inserted into dust collecting hood 10 and communicated with its inside. It is arranged on frame 1, and the input end of fan 14 is provided with suction tube, another end of suction tube is inserted into exhaust hole. Spiral pushing component includes auger 3 and motor 4, auger 3 is arranged in guide pipe 2 and rotationally connected with end cap, the body of motor 4 is connected with one side end cap, and the output end of motor 4 is connected with the central shaft of auger 3. Two guide plates 7 are symmetrically arranged in discharge pipe 6, and the side guide plates 7 are all provided with arc grooves by approaching each other, rotating drum 8 is located in the inner side of arc groove and slidably connected with its inner wall, and a plurality of material receiving grooves 81 are arranged in the arc surface of rotating drum 8 in annular array around its axis. Transmission component 9 includes pulley A, pulley B and toothed belt, pulley A is coaxially connected with the central shaft of auger 3, pulley B is coaxially connected with rotating drum 8, and toothed belt is drivingly connected with pulley A and pulley B. Storage hopper 15 is arranged on frame 1, and the output end of storage hopper 15 is communicated with the inside of feed pipe 5.

[0030] In the embodiment, raw materials are added into storage hopper 15, motor 4 and fan 14 are started, motor 4 drives auger 3 to rotate, and then rotating drum 8 is rotated, at this time, raw materials in storage hopper 15 are under the action of gravity and suction force of fan 14 and enter guide pipe 2 along feed pipe 5, and the dust and other impurities with smaller volume and lighter specific gravity in raw materials are followed by air flow and enter collection box 12 along dust collecting hood 10 and gas collecting pipe 11 when raw materials are conveyed to the opening of discharge pipe 6, dust and impurities are blocked by filter 13, and air is directly discharged. And when rotating drum 8 rotates, because it only discharges through the cyclic rotation of material receiving groove 81 in the process of continuous intermittent discharge, external air cannot be sucked into guide pipe 2 along the discharge port of discharge pipe 6 in large quantities, thereby ensuring that raw materials in storage hopper 15 enter guide pipe 2 due to the suction effect of fan 14, so as to avoid the pipe hole blockage caused by the downward discharge of raw materials in storage hopper 15.

[0031] Embodiment two

[0032] As Figures 1-4 shown, the utility model provides a kind of feeding device for plastic granulator, compared with embodiment one, the opening inner side of each receiving groove 81 is provided with limiting rod 82, and each receiving groove 81 is provided with the arc plate 83 sliding along its inner wall radially, the arc surface radian of arc plate 83 is consistent with the arc surface radian of rotary drum 8, and limiting groove adapted with limiting rod 82 is provided on the arc surface of arc plate 83.

[0033] In the embodiment, under the condition that rotary drum 8 rotates, each receiving groove 81 is cyclically switched position, in this process, when receiving groove 81 opening is inclined downward, arc plate 83 starts to slide under the action of gravity, and when receiving groove 81 opening is downward, the master batch received in receiving groove 81 is discharged downward and the opening of receiving groove 81 is blocked, to effectively avoid that external air flows back into material guiding pipe 2 along receiving groove 81, to make that the air flow in material guiding pipe 2 can only be in the direction of feeding pipe 5 towards gas collecting hood 10, ensure dust removal efficiency.

[0034] Embodiment three

[0035] As Figure 1 , Figure 2 and Figure 5 shown, the utility model provides a kind of feeding device for plastic granulator, compared with embodiment one, barrel cover 16 is provided on storage hopper 15, one side of barrel cover 16 is provided with flip cover 17 rotationally connected with it, and hollow shaft 19 rotationally connected with it is provided on barrel cover 16, spiral plate 20 is provided on hollow shaft 19, spiral plate 20 is inserted into feeding pipe 5, and hollow shaft 19 is communicated with material guiding pipe 2 and storage hopper 15, driving assembly 21 for driving hollow shaft 19 to rotate is provided on barrel cover 16. Driving assembly 21 includes dust cover 18, wind wheel 211, gear A 212 and gear B 213. Dust cover 18 is provided on barrel cover 16, air inlet hole 181 is provided on dust cover 18, dust screen is provided on the inner side of air inlet hole 181, the top end of hollow shaft 19 is inserted into dust cover 18 and is communicated with its inside. Rotating shaft rotationally connected with barrel cover 16 is provided in dust cover 18, wind wheel 211 is located in dust cover 18 and is coaxially connected with rotating shaft, air inlet hole 181 is towards the blade of wind wheel 211. Gear A 212 is coaxially connected with rotating shaft, gear B 213 is coaxially connected with hollow shaft 19, gear A 212 is engaged with gear B 213.

[0036] In the embodiment, in the working state of the fan 14, the external air enters the dust cover 18 through the air inlet hole 181, and then enters the storage hopper 15 and the feeding pipe 5 along the hollow shaft 19. The air entering the storage hopper 15 effectively maintains the air pressure balance between the inside and outside of the storage hopper 15, facilitating the discharging of the material. In the process, the air flow drives the rotation of the wind wheel 211, the wind wheel 211 drives the rotation of the hollow shaft 19 through the gear A 212 and the gear B 213, and then the rotating spiral plate 20 dredges the discharge hole of the storage hopper 15 and the inside of the feeding pipe 5, preventing the raw material from blocking the pipe hole.

[0037] The above describes the embodiments of the utility model in detail in combination with the drawings, but the utility model is not limited to this, and various changes can be made within the knowledge range of the technical personnel in the technical field without departing from the purpose of the utility model.

Claims

1. A plastic pelletizer feeding device characterized by comprising: The utility model relates to a kind of material guiding pipe and dust collection device, including Frame (1), frame (1) is provided with the material guiding pipe (2) with end cap on both ends, material guiding pipe (2) is provided with feed pipe (5) and discharge pipe (6), and material guiding pipe (2) is provided with dust hood (10) with material guiding pipe (2) internal communication above discharge pipe (6); Negative pressure dust collection component, negative pressure dust collection component is provided on frame (1), and the input end of negative pressure dust collection component is communicated with dust hood (10); Spiral pushing assembly, spiral pushing assembly is provided in material guiding pipe (2); Rotary drum (8), rotary drum (8) is provided in discharge pipe (6) and is rotationally connected with its inner wall, and the arc surface of rotary drum (8) is provided with a plurality of material receiving grooves (81) in annular array around its axis; Transmission assembly (9), transmission assembly (9) is transmission connected spiral pushing assembly and rotary drum (8); And storage hopper (15), storage hopper (15) is provided on frame (1), and the output end of storage hopper (15) is communicated with the inside of feed pipe (5).

2. The feeding device for a plastic granulator according to claim 1, characterized in that Material guiding pipe (2) is provided with feed hole, discharge hole and through hole (201), feed pipe (5) is covered and provided outside feed hole, discharge pipe (6) is covered and provided outside discharge hole, through hole (201) is opposite about the axis of material guiding pipe (2) with discharge hole, and dust hood (10) is covered and provided outside through hole (201).

3. The feeding device for a plastic granulator according to claim 2, wherein Negative pressure dust collection component includes collection box (12) and fan (14);Collection box (12) and fan (14) are provided on frame (1), and filter (13) is provided in collection box (12) and is slidably connected therewith, and suction port and exhaust port are provided on collection box (12), and suction port and exhaust port are located on the upper side and lower side of filter (13) respectively, and gas collecting pipe (11) is covered and provided outside suction port on collection box (12), and the other end of gas collecting pipe (11) is inserted into dust hood (10) and is communicated with its inside;Fan (14) is provided on frame (1), and the input end of fan (14) is provided with suction pipe, and the other end of suction pipe is inserted into exhaust hole.

4. The feeding device for a plastic granulator according to claim 1, wherein Spiral pushing assembly includes auger (3) and motor (4), auger (3) is provided in material guiding pipe (2) and is rotationally connected with end cap, and the body of motor (4) is connected with one side end cap, and the output end of motor (4) is connected with the central shaft of auger (3).

5. A feeding device for a plastic granulator according to claim 4, characterized in that Transmission assembly (9) includes pulley A, pulley B and toothed belt, pulley A is coaxially connected with the central shaft of auger (3), pulley B is coaxially connected with rotary drum (8), and toothed belt is transmission connected pulley A and pulley B.

6. A feeding device for a plastic granulator according to claim 1, characterized in that Two guide plates (7) are symmetrically provided in discharge pipe (6), and some of the guide plates (7) on both sides are close to each other are provided with arc grooves, and rotary drum (8) is located inside the arc grooves and is slidably connected with the inner wall thereof.

7. A feeding device for a plastic granulator according to claim 6, characterized in that The inside of the opening of each material receiving groove (81) is provided with a limiting rod (82), and the arc-shaped plate (83) radially slides along the inner wall of each material receiving groove (81), the arc surface of the arc-shaped plate (83) is consistent with the arc surface of the rotary drum (8), and the arc surface of the arc-shaped plate (83) is provided with a limiting groove matched with the limiting rod (82).

8. A feeding device for a plastic granulator according to claim 1, characterized in that A barrel cover (16) is arranged on the storage hopper (15), one side of the barrel cover (16) is arranged with a flip cover (17) rotationally connected thereto, and a hollow shaft (19) rotationally connected to the barrel cover (16) is arranged on the barrel cover (16), a spiral plate (20) is arranged on the hollow shaft (19), the spiral plate (20) is inserted into the feeding pipe (5), and the hollow shaft (19) is communicated with the guide pipe (2) and the storage hopper (15), and a driving assembly (21) for driving the hollow shaft (19) to rotate is arranged on the barrel cover (16).

9. The feeding device for a plastic granulator according to claim 8, wherein The driving assembly (21) comprises a dust cover (18), a wind wheel (211), a gear A (212) and a gear B (213); the dust cover (18) is arranged on the barrel cover (16), an air inlet hole (181) is arranged on the dust cover (18), a dust screen is arranged on the inner side of the air inlet hole (181), and the top end of the hollow shaft (19) is inserted into the dust cover (18) and communicated with the inside thereof; a rotating shaft rotationally connected to the barrel cover (16) is arranged in the dust cover (18), the wind wheel (211) is coaxially connected to the rotating shaft and located in the dust cover (18), and the air inlet hole (181) faces the blades of the wind wheel (211); the gear A (212) is coaxially connected to the rotating shaft, the gear B (213) is coaxially connected to the hollow shaft (19), and the gear A (212) is engaged with the gear B (213).

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