CN111267267A

CN111267267A - Plastic sorting production line

Info

Publication number: CN111267267A
Application number: CN202010242847.6A
Authority: CN
Inventors: 刘军
Original assignee: Dongguan Haibao Machinery Technology Co ltd
Current assignee: Dongguan Haibao Machinery Technology Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2020-06-12

Abstract

The invention relates to the technical field of automatic plastic sorting, in particular to a plastic sorting production line which comprises a first storage hopper, a first heating feeding machine, a dust remover, a second heating feeding machine, a plurality of metering weighing bin devices and a plurality of electrostatic sorting machines. The utility model provides a plastics sorting production line can sort out the plastics of different grade type automatically to collect the plastics that sort out automatically, do not need artificial participation completely, the material resources of using manpower sparingly, the area of factory building is little moreover, and work efficiency is high.

Description

Plastic sorting production line

Technical Field

The invention relates to the technical field of automatic plastic sorting, in particular to a plastic sorting production line.

Background

With the increasing consumption of plastic products, the amount of waste plastic is also increasing. At present, the waste plastics in China mainly comprise plastic films, plastic packing cases, containers and daily plastic products. In addition, the annual consumption of plastics for automobiles in China reaches 150 ten thousand tons, the annual consumption of plastics matched with electronic appliances and household appliances reaches more than 400 ten thousand tons, and the scrapped products of the plastics become one of important sources of waste plastics. It is known that 3000 million tons of domestic waste plastics are produced in 2015, and recycling of plastics is also improved to the top priority. Traditional waste plastics are categorised mainly to adopt artifical screening and salt solution screening (classify according to the density difference of plastics), and artifical screening and salt solution screening all adopt the manual work to screen, can waste a large amount of manpower and materials and factory building area big, and work efficiency is low.

Disclosure of Invention

The invention aims to solve the technical problem of providing a plastic sorting production line which can automatically sort different types of plastics and automatically collect the sorted plastics, does not need manual participation at all, saves manpower and material resources, and has small occupied area of a factory building and high working efficiency.

In order to solve the technical problems, the invention adopts the following technical scheme:

a plastic sorting production line comprises a first storage hopper, a first heating feeding machine, a dust remover, a second heating feeding machine, a plurality of metering weighing bin devices and a plurality of electrostatic sorting machines; first storage hopper is used for storing external plastics, first heating material loading machine is used for carrying the external plastics that first storage hopper stored to the dust remover, the dust remover is used for carrying out the dust removal processing to the plastics that first heating material loading machine carried, second heating material loading machine is used for carrying the plastics after the dust removal processing to a plurality of electrostatic separation machine, a plurality of electrostatic separation machine is used for sorting the plastics that second heating material loading machine carried, a plurality of metrological title feed bin device is used for collecting the plastics after the sorting processing of a plurality of electrostatic separation machine.

Furthermore, the electrostatic separator comprises a first frame, a grinding mechanism, a material guide chute, a belt conveying mechanism, an electrostatic roller and a plurality of discharging and sorting mechanisms;

the grinding mechanism is arranged on the first rack and provided with a grinding material feeding port and a grinding material discharging port, the second heating feeder enables the plastic subjected to dust removal treatment by the dust remover to enter the grinding mechanism through the grinding material feeding port, and the grinding mechanism is used for stirring the plastic; the material guide chute is arranged on the first rack and provided with a chute feeding port and a chute discharging port, the chute feeding port is communicated with the abrasive discharging port, the chute discharging port is positioned above the belt conveying mechanism, and the plastic stirred by the abrasive mechanism is conveyed to the belt conveying mechanism through the material guide chute;

belt conveyor, static roller and a plurality of ejection of compact sorting mechanism all set up in first frame, and belt conveyor keeps away from the one end of guide spout and is provided with ejection of compact clearance with the static roller, and belt conveyor is used for throwing the plastics on the belt conveyor to a plurality of ejection of compact sorting mechanism via ejection of compact clearance.

Furthermore, a plurality of convex particles are arranged on the inner wall of the material guide chute.

Further, the material guide sliding groove comprises a first sliding groove and a second sliding groove, the first sliding groove is communicated with the second sliding groove, and the first sliding groove and the second sliding groove are arranged in a crossed mode.

Further, the belt conveying mechanism comprises a fixing plate, a belt driving device, a belt, a driving wheel bearing seat, a driven wheel bearing seat, a plurality of hinges and a plurality of handle parts; the fixing plate is rotatably connected to the first rack through a plurality of hinges, and the plurality of buckling pieces are used for locking the fixing plate to the first rack; the driving wheel bearing seat and the driven wheel bearing seat are respectively arranged on the same side of the fixing plate, the driving wheel is rotatably connected to the driving wheel bearing seat, the driven wheel is rotatably connected to the driven wheel bearing seat, the belt is wound on the driving wheel and the driven wheel, and the belt driving device is arranged on the first frame and used for driving the driving wheel to rotate.

Furthermore, the first machine frame is provided with a position adjusting plate, a plurality of first locking screws and a plurality of second locking screws, the position adjusting plate is provided with a transverse long hole and a longitudinal long hole, the plurality of first locking screws lock the static roller to the position adjusting plate through the longitudinal long hole, and the plurality of second locking screws lock the position adjusting plate to the first machine frame through the transverse long hole.

Furthermore, the metering weighing bin device comprises a second rack, a second storage hopper, a control valve, a first driving device, a weighing sensor, a control cabinet, a connecting plate, a bag opening clamping device and a plurality of bag hanging hooks;

the second storage hopper is arranged on the second rack and used for storing plastics sorted by the electrostatic sorting machine, and a storage hopper feeding port and a storage hopper discharging port are formed in the second storage hopper;

the control valve is arranged at the discharge port of the storage hopper of the second storage hopper and is used for controlling the opening or closing of the discharge port of the storage hopper;

the first driving device is arranged on the second rack, the connecting plate is connected to the output end of the first driving device, and the first driving device is used for driving the connecting plate to move close to or far away from the second storage hopper;

the weighing sensor, the control valve and the first driving device are respectively and electrically connected to the control cabinet, and the weighing sensor is used for detecting output force required by the first driving device for driving the connecting plate to move;

the bag opening clamping device is arranged on the connecting plate and used for clamping the bag opening of an external material bag at the discharge opening of the storage hopper, and the bag opening clamping device is electrically connected with the control cabinet;

the bag hanging hooks are rotatably connected to the connecting plate and used for hooking outside material bags.

Furthermore, the bag opening clamping device comprises two groups of clamping jaw mechanisms, the two groups of clamping jaw mechanisms are connected to the connecting plate, and the discharge opening of the storage hopper is positioned between the two groups of clamping jaw mechanisms; the clamping jaw mechanism comprises a second driving device and a clamping jaw, the shell of the second driving device is rotatably connected to the connecting plate, the output end of the second driving device is rotatably connected to the middle of the clamping jaw, one end of the clamping jaw is rotatably connected to the connecting plate, and the other end of the clamping jaw is used for clamping the bag opening of an external material bag at the discharge opening of the storage hopper.

Further, the clamping jaw includes rotation portion, clamping part and installation department, the one end of rotation portion is rotated and is connected in the connecting plate, the other end of rotation portion is connected in the clamping part, and the installation department is connected in the one end that the clamping part is close to the rotation portion, and second drive arrangement's output rotates and connects in the installation department.

Furthermore, the connecting plate is also provided with a plurality of third driving devices, and the plurality of third driving devices are arranged in one-to-one correspondence with the plurality of bag hanging hooks; the third driving device is connected to the connecting plate, the output end of the third driving device is connected to one end of the bag hook, the middle of the bag hook is rotatably connected to the connecting plate, and the other end of the bag hook is used for hooking an external material bag.

The invention has the beneficial effects that: in the actual work, outside plastics are carried to first storage hopper and are stored after the washing of wash-line earlier, then first heating material loading machine carries the plastics that first storage hopper stored to the dust remover, first heating material loading machine heats its plastics of carrying simultaneously at the in-process of carrying plastics, heat the plastics that first heating material loading machine carried, can dry the remaining moisture of outside plastics on the one hand, on the other hand makes the effect of the plastics belt static after the heating better. Then the dust remover carries out dust removal treatment to the plastics that first heating material loading machine was carried, and the dust remover is the conventional technological means of skilled person in the art, and preferably, the dust remover can adopt chinese patent: the disclosed conical gravity separator performs a dust removal process. Then the second heating feeding machine conveys the plastics subjected to dust removal treatment by the dust remover to a plurality of electrostatic separators, and the second heating feeding machine heats the conveyed plastics in the process of conveying the plastics. The first heating feeding machine and the second heating feeding machine are identical in structure and respectively comprise an auger conveyor and a heating device arranged on the auger conveyor. And the two or more than two electrostatic separators are used for carrying out multi-stage separation treatment on the plastics conveyed by the second heating feeding machine, and the plastics of different types can be separated out after the multi-stage separation treatment. Then a plurality of metering and weighing bin devices collect the plastics sorted by the electrostatic sorting machines and carry out weighing and weighing.

The utility model provides a plastics sorting production line can sort out the plastics of different grade type automatically to collect the plastics that sort out automatically, do not need artificial participation completely, the material resources of using manpower sparingly, the area of factory building is little moreover, and work efficiency is high.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view showing the structure of an electrostatic classifier provided with a position regulating plate according to the present invention.

Fig. 3 is a schematic view showing the structure of an electrostatic classifier provided with a rotating arm according to the present invention.

Fig. 4 is a schematic structural view of the first sliding chute of the invention after being unfolded.

Fig. 5 is a schematic structural view of a position adjustment plate according to the present invention.

Fig. 6 is a left side view of the belt conveying mechanism of the present invention.

Fig. 7 is a plan view of the belt conveyor according to the present invention with the belt hidden.

Fig. 8 is a schematic structural view of the belt and the rectification wheel of the invention.

Fig. 9 is a schematic structural diagram of the weighing bin device of the present invention.

Fig. 10 is an enlarged view of fig. 9 at a.

Description of reference numerals:

a second heating feeder 1, a weighing hopper device 2, a second frame 21, a fork 211, a second storage hopper 22, a storage hopper feed inlet 221, a material suction pipe connection port 2211, a material delivery pipe connection port 2212, a storage hopper discharge port 222, a control valve 23, a first driving device 24, a weighing sensor 25, a control cabinet 26, a connection plate 27, a third driving device 271, a drop-proof buckle 272, a bag mouth clamping device 28, a clamping jaw mechanism 281, a second driving device 282, a clamping jaw 283, a rotating part 2831, a clamping part 2832, a mounting part 2833, a bag hanging hook 29, an electrostatic sorting machine 3, a first frame 31, a position adjusting plate 311, a transverse strip hole 3111, a longitudinal strip hole 3112, a rotating arm 312, an abrasive mechanism 32, an abrasive feed inlet 321, an abrasive discharge port 322, a storage hopper 323, a stirring rod 324, a stirring rod driving device 325, a material guide chute 33, a chute feed inlet 331, a chute discharge port 332, a protruding grain 333, the device comprises a first chute 334, a second chute 335, a chute baffle 336, a belt conveying mechanism 34, a fixing plate 341, a belt 342, a driving wheel 343, a driving wheel bearing 344, a driven wheel 345, a driven wheel bearing 346, a hinge 347, a handle member 348, a deviation rectifying wheel 349, an electrostatic roller 35, a discharge sorting mechanism 36, a collecting hopper 361, a collecting hopper feeding port 3611, a collecting hopper discharge port 3612, a sorting baffle 362, a discharge gap 37, a dust remover 4, a first heating feeding machine 5, an auger conveyor 51, a heating device 52, a first storage hopper 6, an elevator 7 and a silica gel sorting machine 8.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

As shown in fig. 1, the plastic sorting production line provided by the invention comprises a first storage hopper 6, a first heating feeder 5, a dust remover 4, a second heating feeder 1, a plurality of weighing bin devices 2 and a plurality of electrostatic sorting machines 3; first storage hopper 6 is used for storing external plastics, first heating material loading machine 5 is used for carrying the external plastics that first storage hopper 6 stored to dust remover 4, dust remover 4 is used for carrying out the dust removal processing to the plastics that first heating material loading machine 5 carried, second heating material loading machine 1 is used for carrying the plastics after the dust removal processing of dust remover 4 to a plurality of electrostatic separation machine 3, a plurality of electrostatic separation machine 3 is used for sorting the plastics that second heating material loading machine 1 carried, a plurality of weigher feed bin device 2 is used for collecting the plastics after the sorting processing of a plurality of electrostatic separation machine 3.

In the actual work, outside plastics are carried to first storage hopper 6 and are stored after the washing of wash-line earlier, then first heating material loading machine 5 carries the plastics that first storage hopper 6 stored to dust remover 4, first heating material loading machine 5 heats the plastics that it carried simultaneously at the in-process of carrying plastics, the plastics that carry first heating material loading machine 5 heat, can dry the remaining moisture of outside plastics on the one hand, on the other hand makes the plastics after the heating take the static effect better. Then the dust remover 4 removes dust from the plastic conveyed by the first heating feeder 5, the dust remover 4 is a conventional technical means for those skilled in the art, and preferably, the dust remover 4 can adopt Chinese patent: 201710428427.5, the cone specific gravity air separator is used for removing dust. Then the second heating and feeding machine 1 conveys the plastics subjected to dust removal treatment by the dust remover 4 to a plurality of electrostatic separators 3, and the second heating and feeding machine 1 heats the conveyed plastics simultaneously in the process of conveying the plastics. The first heating loader 5 and the second heating loader 1 have the same structure, and each include an auger conveyor 51 and a heating device 52 provided on the auger conveyor 51. The two or more than two electrostatic separators 3 carry out multi-stage separation treatment on the plastics conveyed by the second heating feeder 1, and the plastics of different types can be separated out after the multi-stage separation treatment. Then a plurality of weighing bin devices 2 collect the plastics sorted by the electrostatic sorting machines 3 and weigh the plastics.

Specifically, an elevator 7 can be arranged between the electrostatic separator 3 and between the electrostatic separator 3 and the weighing bin device 2, the elevator 7 can be used for conveying plastics subjected to separation processing by the electrostatic separator 3 to the next electrostatic separator 3, the elevator 7 can also be used for conveying plastics subjected to separation processing by the electrostatic separator 3 to the weighing bin device 2, and the elevator 7 can facilitate conveying of the plastics.

Specifically, according to the production needs, the silica gel sorting machine 8 is additionally arranged in the plastic sorting production line, plastics after being sorted and processed by the electrostatic sorting machine 3 are sorted by the silica gel sorting machine 8, and the plastics after being sorted and processed by the silica gel sorting machine 8 are conveyed to the metering weighing bin device 2 to meet the production requirements. Preferably, the silica gel separator 8 can adopt Chinese patents: 201810095842.8, respectively.

As shown in fig. 2, in the present embodiment, the electrostatic classifier 3 includes a first frame 31, an abrasive mechanism 32, a material guide chute 33, a belt conveying mechanism 34, an electrostatic roller 35, and a plurality of discharging and sorting mechanisms 36;

the grinding mechanism 32 is arranged on the first frame 31, the grinding mechanism 32 is provided with a grinding material inlet 321 and a grinding material outlet 322, the second heating feeder 1 feeds the plastics subjected to dust removal treatment by the dust remover 4 into the grinding mechanism 32 through the grinding material inlet 321, and the grinding mechanism 32 is used for stirring the plastics; the material guide chute 33 is arranged on the first frame 31, the material guide chute 33 is provided with a chute feeding hole 331 and a chute discharging hole 332, the chute feeding hole 331 is communicated with the abrasive discharging hole 322, the chute discharging hole 332 is positioned above the belt conveying mechanism 34, and the plastic stirred by the abrasive mechanism 32 is conveyed to the belt conveying mechanism 34 through the material guide chute 33;

the belt conveying mechanism 34, the electrostatic roller 35 and the plurality of discharging sorting mechanisms 36 are all arranged on the first machine frame 31, a discharging gap 37 is arranged between one end, away from the material guide chute 33, of the belt conveying mechanism 34 and the electrostatic roller 35, and the belt conveying mechanism 34 is used for throwing plastics on the belt conveying mechanism 34 to the plurality of discharging sorting mechanisms 36 through the discharging gap 37.

In actual work, plastics subjected to dust removal treatment by the dust remover 4 enter the inside of the grinding mechanism 32 through the grinding material inlet 321 by the second heating feeder 1, then the grinding mechanism 32 stirs the plastics, the stirred plastics rub against each other to generate static electricity, the electrostatically charged plastics enter the material guide chute 33 through the grinding material outlet 322 and the chute inlet 331, the plastics in the material guide chute 33 are conveyed to the belt conveying mechanism 34 through the chute outlet 332, and the belt conveying mechanism 34 drops the plastics on the belt conveying mechanism 34 to the discharging sorting mechanisms 36 through the discharging gaps 37. Meanwhile, an electrostatic field is generated near the electrostatic roller 35, and plastic of different materials is stressed differently in the electrostatic field by utilizing different electric properties of friction electrification of the plastic of different materials, so that the movement direction of the plastic is changed, the plastic of different materials drops to different discharging and sorting mechanisms 36, and the sorting effect is achieved.

The electrostatic separation machine 3 of this application can realize automatic sorting to plastics, labour saving and time saving, and the area of factory building is little, and work efficiency is high. Moreover, the electrostatic roller 35 only has one kind of electrode, preferably a negative electrode, the electrostatic field generated by the electrostatic roller 35 only has one kind of pulling force, the moving direction of the plastic cannot be disturbed, the plastic can accurately fall into the corresponding discharging and sorting mechanism 36, and the plastic can be stably and accurately sorted. Conventionally, the positive and negative electrode sorting mode is adopted, and because the positive and negative electrodes can generate two pulling forces (like poles repel each other and opposite poles attract each other), the pulling forces generated by the positive and negative electrodes easily disturb the movement direction of the plastic, and the disturbed plastic cannot fall into the corresponding discharging and sorting mechanism 36.

Specifically, the chute discharge hole 332 is provided with a chute baffle 336, and the chute baffle 336 can ensure that the plastic of the guide chute 33 can be accurately conveyed to the belt conveying mechanism 34, so as to prevent the plastic from splashing out of the belt conveying mechanism 34.

Specifically, ejection of compact sorting mechanism 36 includes collecting hopper 361 and sorting baffle 362, and collecting hopper 361 is provided with collecting hopper feed inlet 3611 and collecting hopper discharge gate 3612, and the one end of sorting baffle 362 rotates and is connected in collecting hopper 361 and is used for adjusting the bore size of collecting hopper feed inlet 3611. In operation, the belt conveyor 34 drops the plastic on the belt conveyor 34 into the collection hopper 361 via the discharge gap 37. Meanwhile, the caliber of the feeding hole 3611 of the collecting hopper can be adjusted through the sorting baffle 362 according to the material of the plastic, so that the production requirement is met.

Specifically, the grinding mechanism 32 includes a bin 323, a stirring rod 324 and a stirring rod driving device 325, the grinding material inlet 321 and the grinding material outlet 322 are respectively disposed in the bin 323, the stirring rod 324 is rotatably disposed in the bin 323, and the stirring rod driving device 325 is disposed in the first frame 31 and is used for driving the stirring rod 324 to rotate. In practice, the stirring rod driving device 325 drives the stirring rod 324 to rotate, and the rotating stirring rod 324 drives the plastics in the bin 323 to move together, so that the plastics rub against each other and generate static electricity when moving. The grinding mechanism 32 has a simple structure, and can effectively drive the plastics to move and enable the plastics to rub against each other to generate static electricity.

As shown in fig. 2 and 4, in the present embodiment, the inner wall of the material guide chute 33 is provided with a plurality of protruding particles 333.

In actual work, the electrostatically charged plastics enter the material guide chute 33 through the abrasive material outlet 322 and the chute inlet 331, and the plurality of convex particles 333 on the inner wall of the material guide chute 33 perform material homogenizing treatment on the plastics, so that the subsequent separation work is prevented from being influenced by overlapping of two or more plastics. The plurality of beads 333 allows the plastic to be orderly arranged, and the orderly arranged plastic can be accurately sorted out.

As shown in fig. 2, in the present embodiment, the material guiding chute 33 includes a first chute 334 and a second chute 335, the first chute 334 is communicated with the second chute 335, and the first chute 334 and the second chute 335 are arranged in a crossing manner.

In practical operation, the first chute 334 and the second chute 335 are arranged in a crossed manner, that is, a corner exists between the first chute 334 and the second chute 335, when plastic slides from the first chute 334 to the second chute 335, the plastic can collide with the first chute 334 and/or the second chute 335, two or more pieces of plastic overlapped together can scatter due to collision, so that the plastic can be orderly arranged, and the orderly arranged plastic can be accurately sorted out.

Specifically, the caliber of the chute discharge port 332 is smaller than the caliber of the abrasive discharge port 322. The chute discharge port 332 with a small diameter can slow down the speed of conveying the plastics from the material guide chute 33 to the belt conveying mechanism 34, so that the plastics are orderly and flatly laid on the belt conveying mechanism 34, and the plastics orderly and flatly laid on the belt conveying mechanism 34 can be accurately sorted out.

As shown in fig. 6 to 8, in the present embodiment, the belt conveying mechanism 34 includes a fixing plate 341, a belt driving device (not shown), a belt 342, a driving wheel 343, a driving wheel bearing seat 344, a driven wheel 345, a driven wheel bearing seat 346, a plurality of hinges 347, and a plurality of clasping members 348; the fixing plate 341 is rotatably connected to the first housing 31 via hinges 347, and the fastening members 348 are used for locking the fixing plate 341 to the first housing 31; a driving wheel bearing seat 344 and a driven wheel bearing seat 346 are respectively installed on the same side of the fixing plate 341, the driving wheel 343 is rotatably connected to the driving wheel bearing seat 344, the driven wheel 345 is rotatably connected to the driven wheel bearing seat 346, a belt 342 is wound around the driving wheel 343 and the driven wheel 345, and a belt driving device is installed on the first frame 31 and is used for driving the driving wheel 343 to rotate.

In actual operation, the belt driving device drives the driving wheel 343 to rotate, the rotating driving wheel 343 drives the belt 342 to rotate, and the rotating belt 342 drives the plastic to fall to the discharging sorting mechanisms 36 through the discharging gaps 37. When the belt 342 needs to be disassembled or replaced, the operator releases the locking of the fastening members 348 to the fixing plate 341 first, and then the operator lifts the fixing plate 341 along the hinges 347, so that the limitation of the positions of the first frame 31, the material guide chute 33, the electrostatic roller 35 and the discharging sorting mechanisms 36 to the operator is avoided, and the operator can disassemble or replace the belt 342 more conveniently and rapidly.

Specifically, the belt conveying mechanism 34 further includes a plurality of deviation correction wheels 349, the plurality of deviation correction wheels 349 are respectively disposed on the fixing plate 341 or the first chassis 31, and the plurality of deviation correction wheels 349 are used for performing deviation correction processing on the belt 342. In actual operation, the belt 342 can be corrected by the plurality of deviation correction wheels 349, so that the belt 342 is prevented from deviating.

As shown in fig. 2, 3 and 5, in the present embodiment, the first frame 31 is provided with a position adjustment plate 311, a plurality of first locking screws (not shown) and a plurality of second locking screws (not shown), the position adjustment plate 311 is provided with a transverse elongated hole 3111 and a longitudinal elongated hole 3112, the plurality of first locking screws lock the electrostatic roller 35 to the position adjustment plate 311 through the longitudinal elongated hole 3112, and the plurality of second locking screws lock the position adjustment plate 311 to the first frame 31 through the transverse elongated hole 3111.

In actual work, the distance between the electrostatic roller 35 and the belt conveying mechanism 34 can be adjusted according to production requirements, so that the size of the discharge gap 37 is adjusted, and the production requirements are met. Specifically, when the distance between the electrostatic roller 35 and the belt conveying mechanism 34 needs to be adjusted longitudinally, the positions of the electrostatic roller 35 and the position adjustment plate 311 are adjusted longitudinally, and then the electrostatic roller 35 is locked to the position adjustment plate 311 via the longitudinal elongated hole 3112 by a plurality of first locking screws, thereby completing the longitudinal adjustment of the electrostatic roller 35. When the distance between the electrostatic roller 35 and the belt conveying mechanism 34 needs to be adjusted laterally, the position of the position adjusting plate 311 is adjusted laterally, and then the position adjusting plate 311 is locked to the first frame 31 through the lateral elongated hole 3111 by a plurality of second locking screws, and after the lateral position of the position adjusting plate 311 is changed, the lateral distance between the electrostatic roller 35 and the belt conveying mechanism 34 is changed accordingly. The distance between the electrostatic roller 35 and the belt conveying mechanism 34 can be adjusted transversely and longitudinally, and production requirements are met.

Specifically, the first frame 31 is further provided with a rotating arm 312, a middle portion of the rotating arm 312 is rotatably connected to the first frame 31, and one end of the rotating arm 312 is connected to the electrostatic roller 35. In actual work, the angle between the electrostatic roller 35 and the belt conveying mechanism 34 can be adjusted according to production requirements, and the production requirements are met. Specifically, the operator drives the rotating arm 312 to rotate, and the rotating arm 312 drives the electrostatic roller 35 to rotate together, so as to adjust the angle between the electrostatic roller 35 and the belt conveying mechanism 34. After the angle between the electrostatic roller 35 and the belt conveying mechanism 34 is adjusted, the electrostatic roller 35 is locked to the first frame 31 by the locking member.

As shown in fig. 9, in this embodiment, the weighing hopper device 2 includes a second frame 21, a second storage hopper 22, a control valve 23, a first driving device 24, a weighing sensor 25, a control cabinet 26, a connecting plate 27, a bag mouth clamping device 28, and a plurality of bag hooks 29;

the second storage hopper 22 is installed on the second frame 21, the second storage hopper 22 is used for storing plastics sorted by the electrostatic sorter 3, and the second storage hopper 22 is provided with a storage hopper feed port 221 and a storage hopper discharge port 222;

the control valve 23 is disposed at the storage hopper discharge port 222 of the second storage hopper 22 and is used for controlling the opening or closing of the storage hopper discharge port 222;

the first driving device 24 is installed on the second frame 21, the connecting plate 27 is connected to the output end of the first driving device 24, and the first driving device 24 is used for driving the connecting plate 27 to move close to or away from the second storage hopper 22;

the weighing sensor 25 and the control cabinet 26 are respectively arranged on the second frame 21, the weighing sensor 25, the control valve 23 and the first driving device 24 are respectively and electrically connected to the control cabinet 26, and the weighing sensor 25 is used for detecting the output force required by the first driving device 24 to drive the connecting plate 27 to move;

the bag mouth clamping device 28 is arranged on the connecting plate 27 and is used for clamping the bag mouth of an external material bag at the storage hopper discharge hole 222, and the bag mouth clamping device 28 is electrically connected with the control cabinet 26;

the bag hanging hooks 29 are rotatably connected to the connecting plate 27 and used for hooking outside material bags.

In practical work, the second storage hopper 22 is installed at the top end of the second rack 21, plastics subjected to sorting processing by the electrostatic sorting machine 3 enter the second storage hopper 22 through the storage hopper feed inlet 221, then an operator sleeves the bag mouth of the material bag into the storage hopper discharge outlet 222 of the second storage hopper 22, the operator starts the bag mouth clamping device 28 through the control cabinet 26 to clamp the bag mouth of the material bag to the storage hopper discharge outlet 222, and then the hanging belt of the material bag is hung on the hanging bag hook 29. Then the operating personnel presses the start button of switch board 26, and first drive arrangement 24 drive connecting plate 27 moves up the distance of settlement, and the connecting plate 27 that moves drives hangs bag hook 29 and material bag and moves up together, and the material bag is unsettled state after moving up. The weighing sensor 25 detects the output force of the first driving device 24 and feeds a signal back to the control cabinet 26, when the output force of the first driving device 24 is smaller than a set value, the control cabinet 26 controls the control valve 23 to open the storage hopper discharge port 222, and then the plastic in the second storage hopper 22 is conveyed into the material bag through the storage hopper discharge port 222. When the output force of the first driving device 24 approaches the set value, the control cabinet 26 controls the control valve 23 to gradually close the storage hopper discharge port 222. When the output force of the first driving device 24 is equal to the set value, the control cabinet 26 controls the control valve 23 to completely close the storage hopper discharge port 222.

After the material bag finishes the process of feeding, first drive arrangement 24 drives connecting plate 27 and moves down the distance of settlement, and the connecting plate 27 that moves drives hangs bag hook 29 and material bag and moves down together, and material bag contradicts ground or bearing board after moving down. The bag mouth clamping device 28 then releases the clamping of the bag mouth of the material bag, and then the operator performs the bag mouth binding work.

The utility model provides a weighing and bagging-off work of plastics can be accomplished to metering balance feed bin device 2 automatically, and the weight value of the plastics that each bag material wrapping bag adorned is the same, need not do the adjustment of weight again, not only improves production efficiency, and reduce cost satisfies the demand of production moreover.

Specifically, the storage hopper feed inlet 221 includes a suction pipe connection port 2211 and a delivery pipe connection port 2212. In practical use, plastics sorted by the electrostatic sorting machine 3 can be sucked into the second storage hopper 22 through the suction pipe connecting port 2211 by the vacuum generator and the suction pipe according to production requirements, or plastics sorted by the electrostatic sorting machine 3 can be input into the second storage hopper 22 through the conveying pipe connecting port 2212 by the conveying device and the conveying pipe, so that production requirements are met.

Specifically, the number of the first driving devices 24 is two, two first driving devices 24 are installed at the second rack 21 at intervals, and the output ends of the two first driving devices 24 are respectively connected to the connecting plate 27. In actual operation, the two first driving devices 24 can stably drive the connecting plate 27 to move, so that the stable movement of the material bag can be ensured. Preferably, the first driving means 24 is a pneumatic cylinder.

Specifically, a fork plate 211 is further arranged below the second frame 21, and the fork plate 211 is used for bearing an external material bag. In the actual work, external material bag is placed on fork board 211, and after the material bag was loaded and is accomplished, operating personnel can drive fork truck and carry away fork board 211 with the material bag together, makes things convenient for the transport work of material bag.

As shown in fig. 9 and 10, in the present embodiment, the bag mouth clamping device 28 includes two sets of clamping jaw mechanisms 281, the two sets of clamping jaw mechanisms 281 are both connected to the connecting plate 27, and the storage hopper discharge port 222 is located between the two sets of clamping jaw mechanisms 281; the clamping jaw mechanism 281 comprises a second driving device 282 and a clamping jaw 283, wherein the housing of the second driving device 282 is rotatably connected to the connecting plate 27, the output end of the second driving device 282 is rotatably connected to the middle part of the clamping jaw 283, one end of the clamping jaw 283 is rotatably connected to the connecting plate 27, and the other end of the clamping jaw 283 is used for clamping the mouth of an external material bag to the material storage hopper discharge port 222.

Clamping jaw 283 includes rotating part 2831, clamping part 2832 and installation department 2833, rotating part 2831's one end is rotated and is connected in connecting plate 27, rotating part 2831's the other end is connected in clamping part 2832, and installation department 2833 is connected in clamping part 2832 and is close to the one end of rotating part 2831, and the output of second drive arrangement 282 rotates and is connected in installation department 2833.

The housing of the second drive 282 is pivotally connected to the link plate 27 via the lug brackets. In practice, an operator firstly inserts the mouth of the material bag into the storage hopper discharge port 222 of the second storage hopper 22, and then controls the second driving device 282 of the two sets of clamping jaw mechanisms 281 to operate via the control cabinet 26, so that the second driving device 282 drives the clamping jaws 283 to rotate and clamp the mouth of the material bag to the storage hopper discharge port 222. Specifically, the clamping jaw 283 rotates, the rotating portion 2831 rotates along the hinge point with the connecting plate 27, and the rotating portion 2831 drives the clamping portion 2832 to clamp the mouth of the material bag at the material storage hopper discharge port 222. Preferably, the second driving device 282 is an air cylinder. The bag mouth clamping device 28 is simple in structure, and can effectively clamp the bag mouth of the material bag at the material storage hopper discharge port 222, so that the production requirement is met.

As shown in fig. 9 and 10, in this embodiment, the connecting plate 27 is further provided with a plurality of third driving devices 271, and the plurality of third driving devices 271 and the plurality of bag hooks 29 are arranged in a one-to-one correspondence; the third driving device 271 is connected to the connecting plate 27, the output end of the third driving device 271 is connected to one end of the bag hook 29, the middle of the bag hook 29 is rotatably connected to the connecting plate 27, and the other end of the bag hook 29 is used for hooking an external material bag.

In actual work, the third driving device 271 drives the bag hook 29 to hook or release the hanging belt of the material bag, so that the degree of automation is improved, and the production efficiency is improved. Preferably, the third driving device 271 is a cylinder.

Specifically, the connecting plate 27 is further provided with a falling-prevention buckle 272, one end of the falling-prevention buckle 272 is connected to the connecting plate 27, and the other end of the falling-prevention buckle 272 is used for abutting against the bag hook 29. In practical work, after the bag hook 29 hooks the strap of the material bag, the bag hook 29 will abut against the anti-falling buckle 272, the bag hook 29 and the anti-falling buckle 272 will form a closed loop, and the strap of the material bag is prevented from falling off from the bag hook 29.

All the technical features in the embodiment can be freely combined according to actual needs.

The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.

Claims

1. The utility model provides a production line is selected separately to plastics which characterized in that: the electrostatic separator comprises a first storage hopper, a first heating feeding machine, a dust remover, a second heating feeding machine, a plurality of metering weighing bin devices and a plurality of electrostatic separators; first storage hopper is used for storing external plastics, first heating material loading machine is used for carrying the external plastics that first storage hopper stored to the dust remover, the dust remover is used for carrying out the dust removal processing to the plastics that first heating material loading machine carried, second heating material loading machine is used for carrying the plastics after the dust removal processing to a plurality of electrostatic separation machine, a plurality of electrostatic separation machine is used for sorting the plastics that second heating material loading machine carried, a plurality of metrological title feed bin device is used for collecting the plastics after the sorting processing of a plurality of electrostatic separation machine.

2. The plastic sorting line of claim 1, wherein: the electrostatic sorting machine comprises a first rack, a grinding mechanism, a material guide chute, a belt conveying mechanism, an electrostatic roller and a plurality of discharging and sorting mechanisms;

3. The plastic sorting line of claim 2, wherein: the inner wall of the material guide chute is provided with a plurality of convex particles.

4. A plastics sorting line according to claim 2 or 3, wherein: the material guide sliding groove comprises a first sliding groove and a second sliding groove, the first sliding groove is communicated with the second sliding groove, and the first sliding groove and the second sliding groove are arranged in a crossed mode.

5. The plastic sorting line of claim 2, wherein: the belt conveying mechanism comprises a fixing plate, a belt driving device, a belt, a driving wheel bearing seat, a driven wheel bearing seat, a plurality of hinges and a plurality of handle buckling pieces; the fixing plate is rotatably connected to the first rack through a plurality of hinges, and the plurality of buckling pieces are used for locking the fixing plate to the first rack; the driving wheel bearing seat and the driven wheel bearing seat are respectively arranged on the same side of the fixing plate, the driving wheel is rotatably connected to the driving wheel bearing seat, the driven wheel is rotatably connected to the driven wheel bearing seat, the belt is wound on the driving wheel and the driven wheel, and the belt driving device is arranged on the first frame and used for driving the driving wheel to rotate.

6. The plastic sorting line of claim 2, wherein: the first machine frame is provided with a position adjusting plate, a plurality of first locking screws and a plurality of second locking screws, the position adjusting plate is provided with a transverse long hole and a longitudinal long hole, the first locking screws lock the static roller on the position adjusting plate through the longitudinal long hole, and the second locking screws lock the position adjusting plate on the first machine frame through the transverse long hole.

7. The plastic sorting line of claim 1, wherein: the metering weighing bin device comprises a second rack, a second storage hopper, a control valve, a first driving device, a weighing sensor, a control cabinet, a connecting plate, a bag opening clamping device and a plurality of bag hanging hooks;

8. The plastic sorting line of claim 7, wherein: the bag opening clamping device comprises two groups of clamping jaw mechanisms, the two groups of clamping jaw mechanisms are connected to the connecting plate, and the discharge opening of the storage hopper is positioned between the two groups of clamping jaw mechanisms; the clamping jaw mechanism comprises a second driving device and a clamping jaw, the shell of the second driving device is rotatably connected to the connecting plate, the output end of the second driving device is rotatably connected to the middle of the clamping jaw, one end of the clamping jaw is rotatably connected to the connecting plate, and the other end of the clamping jaw is used for clamping the bag opening of an external material bag at the discharge opening of the storage hopper.

9. The plastic sorting line of claim 8, wherein: the clamping jaw includes rotation portion, clamping part and installation department, the one end of rotation portion is rotated and is connected in the connecting plate, the other end of rotation portion is connected in the clamping part, and the installation department is connected in the one end that the clamping part is close to the rotation portion, and second drive arrangement's output rotates to be connected in the installation department.

10. The plastic sorting line of claim 7, wherein: the connecting plate is also provided with a plurality of third driving devices, and the plurality of third driving devices are in one-to-one correspondence with the plurality of bag hooks; the third driving device is connected to the connecting plate, the output end of the third driving device is connected to one end of the bag hook, the middle of the bag hook is rotatably connected to the connecting plate, and the other end of the bag hook is used for hooking an external material bag.