Paper shredding device with scrap cleaning function

Abstract

The invention discloses a paper shredding device with a waste chip cleaning function, and relates to the technical field of waste chip cleaning, the paper shredding device with the waste chip cleaning function comprises a shell, a material sensor is installed on the shell, a paper inlet hole is formed in the top of the shell, an air blower is installed outside the shell, and the air blower is connected with the material sensor. A crushing chamber and a working chamber are formed in the shell, an air conveying device is installed at the top in the crushing chamber, crushing hubs are symmetrically installed in the crushing chamber, a through hole is formed in the side, close to the working chamber, of the crushing chamber, the two crushing hubs penetrate through the through hole to enter the working chamber, and a driving motor is installed in the working chamber. The driving motor and the air blower are both electrically connected with the material sensor, when paper enters the paper shredding device, the material sensor controls the driving motor to start, the two shredding hubs rotate to shred the paper, and the air blower continuously supplies air to the air conveyor within a period of time from the beginning of the paper shredding process to the end of the paper shredding process. And the scraps on the inner walls of the crushing hub and the crushing chamber are cleaned.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of scrap cleaning function, and particularly relates to a paper shredder with scrap cleaning function. BACKGROUND

[0002] In some paper product industrial production processes, sometimes some defective products and waste products are generated, direct destruction and disposal can cause waste of resources, and industrial paper shredders are needed to shred waste paper, so as to facilitate pulp recovery and recycling and avoid waste of resources.

[0003] Nowadays, paper scraps are mostly left on the blade and the inner wall of the device when the paper shredder is used, manual cleaning is needed to stop the device, the cleaning process is dangerous and very cumbersome, and a large amount of time is consumed. SUMMARY

[0004] The present application aims to provide a paper shredder with scrap cleaning function to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: the paper shredder with scrap cleaning function comprises a shell, an entry cover is installed on the outer top of the shell, a material sensor is installed on the entry cover, an entry hole is formed on the top of the shell, a blower is installed on the shell, a crushing chamber and a working chamber are formed in the shell, an air feeder is installed on the inner top of the crushing chamber, the air feeder is connected with the blower through a ventilation pipe, two crushing hubs are symmetrically installed in the crushing chamber, a through hole is formed on one side of the crushing chamber close to the working chamber, the two crushing hubs penetrate into the working chamber through the through hole and are installed with transmission gears, the transmission gears are engaged, a driving motor is installed in the working chamber, a transmission bevel gear is installed on the output end of the driving motor, a driven bevel gear is installed at the center of the transmission gear close to the transmission bevel gear, the driven bevel gear is engaged with the transmission bevel gear, the driving motor and the blower are electrically connected with the material sensor, when the paper enters the entry cover, the material sensor controls the driving motor to start by sensing the existence of the material, the transmission gears are driven to rotate through the transmission bevel gear and the driven bevel gear, the two transmission gears are engaged, so as to drive the two crushing hubs to rotate, to achieve the effect of paper shredding, when the driving motor starts, the blower sends air to the air feeder, and the air feeder changes the air direction, to clean the scrap on the crushing hub, at the same time, the air feeder can clean the paper scraps attached to the inner wall of the crushing chamber through the exhaust hole on the inner wall of the crushing chamber, to achieve the effect of automatic scrap cleaning, and when the paper shredding is finished, the air feeder still sends air for a period of time, to continue cleaning the crushing hub and the inner wall of the crushing chamber, to realize self-cleaning of the scrap.

[0006] Preferably, the working chamber is provided with a water and gas spraying assembly, and the crushing chamber is provided with an inner wall cleaning assembly, and rotation of the driving motor provides driving force for the water and gas spraying assembly and the inner wall cleaning assembly.

[0007] Preferably, the water and gas spraying assembly comprises a water tank, a working tank, a piston, a first transmission wheel, a first belt, a first driven wheel, a fixed pin, a circumferential plate, a transmission plate, a water injection pipe and a water spraying pipe. The working chamber is provided with a water tank, the top of the water tank is provided with a working tank and a first driven wheel, the first driven wheel is eccentrically provided with a fixed pin, the fixed pin is rotatably provided with a circumferential plate, the circumferential plate is rotatably provided with a transmission plate, the working tank is provided with a connecting hole, the working tank is slidably provided with a piston, the transmission plate penetrates through the connecting hole and is connected with the piston, the piston divides the working tank into two water chambers, the two water chambers are connected with the water tank through a water injection pipe, the two water chambers are connected with the air feeder through a water spraying pipe, the driving motor is provided with a first transmission wheel, the first transmission wheel is connected with the first driven wheel through a first belt, when the driving motor rotates, the first transmission wheel and the first belt drive the first driven wheel to rotate, thereby driving the circumferential plate to move in a circumferential direction, and further driving the transmission plate to move back and forth, so that the piston in the working tank moves back and forth, thereby enabling the two water chambers to alternately suck water from the water tank through the water injection pipe and inject the water into the air feeder through the water spraying pipe, so as to continuously deliver water to the air feeder, and the water is converted into water vapor by the air feeder for spraying, thereby reducing static electricity remaining on the crushing hub and the inner wall of the crushing chamber, and avoiding paper scraps from being left on the crushing hub and the inner wall due to static electricity adsorption.

[0008] Preferably, the water injection pipe and the water spraying pipe are one-way pipes.

[0009] Preferably, the water and gas spraying assembly further comprises a ratchet groove, a fixed clamp and a pawl. The first transmission wheel is provided with a ratchet groove, the ratchet groove is provided with a rotating disc, the rotating disc is provided with a fixed clamp, the fixed clamp is slidably provided with a pawl, the pawl is connected with the fixed clamp through a first spring, one end of the pawl is in contact with the first transmission wheel, when paper enters the paper cover, the driving motor is controlled to rotate forward by the material sensor, so that the crushing hub works, at the same time, the first transmission wheel rotates forward, the pawl is always in contact with the ratchet groove due to the first spring, and the first transmission wheel does not affect the rotating disc through the pawl, thereby avoiding the influence of spraying water mist on the paper crushing efficiency during the paper crushing process, when the paper crushing is completed, the driving motor is controlled to rotate reversely by the material sensor at a certain time, at the same time, the first transmission wheel is reversely driven, the rotating disc is driven to rotate through the ratchet groove and the pawl, thereby delivering water to the air feeder, so as to spray water mist during cleaning, and further remove paper scraps left on the inner wall of the crushing chamber due to static electricity adsorption.

[0010] As a preferred technical solution, the inner wall cleaning assembly includes an inner shell, a reciprocating lead screw, a lead screw slider, a rotating shaft, a scraper, an inner wheel, a planetary gear, a second transmission wheel, a second driven wheel, a second belt, a rotating shaft, a support frame, a third transmission wheel, and a third belt; The grinding chamber is equipped with an inner shell, within which multiple reciprocating lead screws are rotatably mounted. These reciprocating lead screws are arranged in a circumferential array within the inner shell. Each reciprocating lead screw has a sliding slider, and each slider has a rotating shaft rotatably mounted on it. The inner shell has multiple evenly spaced lifting slots. The end of each rotating shaft away from the slider passes through one of these lifting slots, and a scraper is mounted on each shaft, fitting snugly against the interior of the grinding chamber. A through slot is formed at the bottom of the grinding chamber, through which the reciprocating lead screws pass. An inner wheel is mounted at the bottom of each reciprocating lead screw, and a planetary gear is rotatably mounted at the bottom of the grinding chamber. The inner wheel is installed within the planetary gear. A second transmission wheel is mounted on the output end of the drive motor. A support frame is mounted on the working chamber. A rotating shaft is rotatably mounted on the support frame. A second driven wheel is concentrically mounted on one end of the rotating shaft near the second transmission wheel. The second driven wheel and the second transmission wheel are connected by a second belt. A shaft hole is correspondingly opened at the bottom of the working chamber. The rotating shaft passes through the shaft hole, and a third transmission wheel is mounted at the bottom of the rotating shaft. The third transmission wheel is connected to the planetary gears by a third belt. When the drive motor rotates, the rotating shaft is driven to rotate through the second transmission wheel and the second belt. The planetary gears are driven to rotate through the third transmission wheel and the third belt. This drives the reciprocating screw to rotate through the internal inner wheel, which in turn causes the screw slider to move back and forth. The rotating shaft drives the scraper to move longitudinally back and forth, achieving repeated scraping of the inner wall of the pulverizing chamber. This removes paper scraps that the air conveyor cannot remove from the inner wall, achieving further cleaning.

[0011] As a preferred technical solution, the inner wall cleaning assembly further includes an inclined plate and a discharge valve; A sloping top block is installed on the top of the inner shell, and an inclined plate is installed between the inner shell and the crushing chamber. A discharge valve is installed at the lower part of the inclined plate, and a discharge pipe is connected to the bottom of the crushing chamber. The discharge valve and the discharge pipe are connected through the discharge pipe. A discharge hole is opened at the bottom of the outer shell, and the discharge pipe passes through the discharge hole. A wheel hole is opened at the center of the planetary gear, and the discharge pipe passes through the discharge hole and the wheel hole. A discharge valve is installed at the output end of the discharge pipe, and a conveying pipe is installed at the bottom of the discharge valve. When shredding paper, the falling paper scraps enter two places in the crushing chamber through the sloping top block. The paper scraps in the center enter the discharge pipe, and the paper scraps around the edges are carried into the inclined plate by the scraper and discharged into the discharge pipe through the inclined plate and the discharge valve. When the paper scraps reach a certain amount, the paper scraps are discharged through the discharge valve, realizing automatic cleaning of paper scraps.

[0012] Preferably, the inner wall cleaning assembly further comprises a rotating block, a clamping block, a rotating plate, a fixed block, a moving groove and a moving plate. A plurality of rotating shafts are installed with rotating blocks, a plurality of screw blocks are provided with rotating holes, the rotating shafts penetrate the rotating holes, and the rotating shaft ends are installed with rotating plates; the screw blocks are symmetrically installed with clamping blocks at one end close to the rotating plates, and the screw block bottoms are installed with fixed blocks; the fixed blocks and the rotating plates are connected through second springs; the inner shell bottom is circumferentially installed with moving grooves, and the moving grooves are slidably installed with moving plates; the moving plates are in the same plane with the rotating blocks, and the moving plates are installed with triangular inclined blocks; when the screw blocks repeatedly move on the reciprocating screw, the rotating blocks are pushed by the moving plate top, so that the rotating blocks drive the rotating shafts to rotate, thereby turning the scraper, avoiding that the paper scraps are always left above the scraper and cannot be discharged, at the same time, the rotating plate is hit to the other clamping block under the action of the second spring, so that the scraper does not shake during scraping, and the scraping efficiency is affected.

[0013] Preferably, a small fan is installed in the inclined plate vertical slope; when the scraper reaches the bottom end, the small fan on the inclined plate can blow off the paper scraps left on the scraper, avoiding that the paper scraps left on the scraper affect the scraping.

[0014] Compared with the prior art, the present application has the following beneficial effects: 1. After shredding and shredding, the air blower can blow air into the crushing chamber to blow off the paper scraps on the crushing hub and the inner wall of the crushing chamber, achieving the effect of automatic cleaning of the waste.

[0015] 2. When the driving motor is reversed, water can be injected into the air blower, and the air blower can spray water mist into the crushing chamber, which can reduce the static electricity on the crushing hub and the inner wall of the crushing chamber, and remove the paper scraps left on the inner wall of the crushing chamber due to the static adsorption effect.

[0016] 3. When the driving motor rotates, the scraper can repeatedly scrape the inner wall of the crushing chamber to remove the paper scraps that cannot be blown off by the air blower, achieving the effect of further cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The main perspective structure diagram of the present application is shown in the figure; Figure 2 The first cut perspective structure diagram of the present application is shown in the figure; Figure 3 The second cut perspective structure diagram of the present application is shown in the figure; Figure 4 The third cut perspective structure diagram of the present application is shown in the figure; Figure 5 The fourth cut perspective structure diagram of the present application is shown in the figure; Figure 6 Figure 5 is a schematic view of a fifth cutaway perspective structure of the present application; Figure 7 Figure 6 is a schematic view of a sixth cutaway perspective structure of the present application; Figure 8 Figure 7 is a schematic view of an enlarged structure at A of Figure 6; Figure 4 Figure 8 is a schematic view of an enlarged structure at B of Figure 6. Figure 9 Figure 9 is a schematic view of an enlarged structure at C of Figure 6. Figure 7 Figure 10 is a schematic view of an enlarged structure at D of Figure 6.

[0018] Figure 1 is a schematic view of the present application; Figure 2 is a schematic view of a first cutaway perspective structure of the present application; Figure 1 is a schematic view of the present application; Figure 2 is a schematic view of a first cutaway perspective structure of the present application; Figure 15 is a schematic view of a water spray assembly of the present application; Figure 1501 is a water tank; Figure 1502 is a working tank; Figure 1503 is a piston; Figure 1504 is a first transmission wheel; Figure 1505 is a ratchet groove; Figure 1506 is a fixed clamp; Figure 1507 is a pawl; Figure 1508 is a first belt; Figure 1509 is a first driven wheel; Figure 1510 is a fixed pin; Figure 1511 is a circumferential plate; Figure 1512 is a transmission plate; Figure 1513 is a water injection pipe; Figure 1514 is a water spray pipe; DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0020] Embodiment: as Figures 1-8As shown, the present application provides a technical scheme of a paper shredding device with scrap cleaning function, which comprises a shell 1, an inlet cover 2 is installed on the top of the shell 1, a material sensor 3 is installed on the inlet cover 2, a paper inlet hole is formed on the top of the shell 1, a blower 12 is installed on the shell 1, a crushing chamber 5 and a working chamber 6 are formed in the shell 1, an air feeder 4 is installed on the top of the crushing chamber 5, the air feeder 4 is connected with the blower 12 through a ventilation pipe, two crushing hubs 7 are symmetrically installed in the crushing chamber 5, a through hole is formed on the side of the crushing chamber 5 close to the working chamber 6, the two crushing hubs 7 penetrate through the through hole and are installed with transmission teeth 8, the two transmission teeth 8 are engaged, a drive motor 11 is installed in the working chamber 6, a transmission bevel gear 10 is installed on the output end of the drive motor 11, a driven bevel gear 9 is installed at the center of the transmission tooth 8 close to the transmission bevel gear 10, the driven bevel gear 9 is engaged with the transmission bevel gear 10, the drive motor 11 and the blower 12 are electrically connected with the material sensor 3, when the paper enters the inlet cover 2, the material sensor 3 controls the drive motor 11 to start by sensing the existence of the material, the transmission bevel gear 10 and the driven bevel gear 9 drive the transmission teeth 8 to rotate, the two transmission teeth 8 are engaged, thereby driving the two crushing hubs 7 to rotate, achieving the effect of shredding paper, the blower 12 sends air to the air feeder 4, and the air feeder 4 changes the direction of the air, thereby cleaning the scrap on the crushing hub 7, at the same time, the air feeder 4 enters the exhaust hole on the inner wall of the crushing chamber 5, thereby cleaning the paper scraps attached to the inner wall of the crushing chamber 5, achieving the effect of automatically cleaning the scrap, and when the paper shredding is finished, the air feeder 4 still sends air for a period of time, thereby continuing to clean the crushing hub 7 and the inner wall of the crushing chamber 5, realizing the self-cleaning of the scrap.

[0021] A water and gas spraying assembly 15 is arranged in the working chamber 6, and an inner wall cleaning assembly 16 is arranged in the crushing chamber 5, the rotation of the drive motor 11 provides driving force for the operation of the water and gas spraying assembly 15 and the inner wall cleaning assembly 16.

[0022] As Figures 2-4 and Figure 8As shown, the water spray assembly 15 comprises a water tank 1501, a working tank 1502, a piston 1503, a first transmission wheel 1504, a first belt 1508, a first driven wheel 1509, a fixed pin 1510, a circumferential plate 1511, a transmission plate 1512, a water injection pipe 1513 and a water spraying pipe 1514. The water tank 1501 is installed in the working chamber 6. The working tank 1502 and the first driven wheel 1509 are installed on the top of the water tank 1501. The fixed pin 1510 is eccentrically installed on the first driven wheel 1509. The circumferential plate 1511 is rotatably installed on the fixed pin 1510. The transmission plate 1512 is rotatably installed on the circumferential plate 1511. The working tank 1502 is provided with a connecting hole. The piston 1503 is slidably installed in the working tank 1502. The transmission plate 1512 penetrates through the connecting hole and is connected with the piston 1503. The piston 1503 divides the working tank 1502 into two water chambers. The two water chambers are connected with the water tank 1501 through the water injection pipe 1513 at the bottom. The two water chambers are connected with the air feeder 4 through the water spraying pipe 1514 at the top. The first transmission wheel 1504 is installed on the output end of the driving motor 11. The first transmission wheel 1504 is connected with the first driven wheel 1509 through the first belt 1508. When the driving motor 11 rotates, the first driven wheel 1509 is driven to rotate through the first transmission wheel 1504 and the first belt 1508, so as to drive the circumferential plate 1511 to make a circumferential motion, and further drive the transmission plate 1512 to make a reciprocating motion, so as to make the piston 1503 in the working tank 1502 reciprocate, thereby making the two water chambers alternately suck water from the water tank 1501 through the water injection pipe 1513 and inject the water into the air feeder 4 through the water spraying pipe 1514, so as to continuously deliver water to the air feeder 4. The water is converted into water vapor by the air feeder 4 for spraying, so as to reduce the static electricity remaining on the inner wall of the crushing hub 7 and the crushing chamber 5, and avoid the paper scraps from being adsorbed by the static electricity and remaining on the crushing hub 7 and the inner wall. The water injection pipe 1513 and the water spraying pipe 1514 are one-way pipes.

[0023] The water spray assembly 15 further comprises a ratchet groove 1505, a fixed clamp 1506 and a pawl 1507, the first transmission wheel 1504 is provided with the ratchet groove 1505, a rotating disc is installed in the ratchet groove 1505, the fixed clamp 1506 is installed on the rotating disc, the pawl 1507 is slidingly installed in the fixed clamp 1506, the pawl 1507 is connected with the fixed clamp 1506 through a first spring, one end of the pawl 1507 is in contact with the first transmission wheel 1504, when the paper enters the paper cover 2, the driving motor 11 is controlled to rotate in a forward direction by the material sensor 3, so that the crushing hub 7 works, at the same time, the first transmission wheel 1504 rotates in a forward direction, the pawl 1507 is always in contact with the ratchet groove 1505 due to the first spring, and the first transmission wheel 1504 will not affect the rotating disc through the pawl 1507, so that the influence of spraying water mist on the paper crushing efficiency in the process of crushing paper is avoided, when the paper crushing is finished, the driving motor 11 is controlled to rotate in a reverse direction by the material sensor 3, so as to drive the first transmission wheel 1504 to rotate in a reverse direction, the rotating disc is driven to rotate through the ratchet groove 1505 and the pawl 1507, so as to supply water to the air feeder 4, and spraying water mist is achieved when cleaning, and then the paper scraps remaining on the inner wall of the crushing chamber 5 due to the electrostatic adsorption effect are removed.

[0024] As Figures 2-9As shown, the inner wall cleaning assembly 16 comprises an inner housing 1601, a reciprocating screw rod 1602, a screw rod slider 1603, a rotating shaft 1604, a scraper 1611, an inner wheel 1612, a planetary wheel 1613, a second transmission wheel 1614, a second driven wheel 1615, a second belt 1616, a rotating shaft 1617, a support frame 1618, a third transmission wheel 1619, and a third belt 1620. The inner housing 1601 is installed in the crushing chamber 5. A plurality of reciprocating screw rods 1602 are rotatably installed in the inner housing 1601. The plurality of reciprocating screw rods 1602 are circumferentially arranged in the inner housing 1601. The screw rod sliders 1603 are slidably installed on the reciprocating screw rods 1602. The rotating shafts 1604 are rotatably installed on the screw rod sliders 1603. A plurality of lifting grooves are uniformly formed in the inner housing 1601. The ends of the rotating shafts 1604 away from the screw rod sliders 1603 penetrate the lifting grooves. The scrapers 1611 are installed on the rotating shafts 1604. The scrapers 1611 are in contact with the inside of the crushing chamber 5. A through groove is formed in the bottom of the crushing chamber 5. The reciprocating screw rods 1602 penetrate the through groove. The inner wheels 1612 are installed at the bottoms of the reciprocating screw rods 1602. The planetary wheel 1613 is rotatably installed at the bottom of the crushing chamber 5. The inner wheels 1612 are installed in the planetary wheel 1613. The second transmission wheel 1614 is installed on the output end of the driving motor 11. The support frame 1618 is installed on the working chamber 6. The rotating shaft 1617 is rotatably installed on the support frame 1618. The second driven wheel 1615 is concentrically installed at the end of the rotating shaft 1617 close to the second transmission wheel 1614. The second driven wheel 1615 is connected with the second transmission wheel 1614 through the second belt 1616. An axle hole is formed in the bottom of the working chamber 6. The rotating shaft 1617 penetrates the axle hole. The third transmission wheel 1619 is installed at the bottom of the rotating shaft 1617. The third transmission wheel 1619 is connected with the planetary wheel 1613 through the third belt 1620. When the driving motor 11 rotates, the rotating shaft 1617 is driven to rotate through the second transmission wheel 1614 and the second belt 1616. The planetary wheel 1613 is driven to rotate through the third transmission wheel 1619 and the third belt 1620. The reciprocating screw rods 1602 are driven to rotate through the inner wheels 1612. The screw rod sliders 1603 are driven to reciprocate. The scrapers 1611 are driven to reciprocate longitudinally through the rotating shafts 1604. The inner wall of the crushing chamber 5 is repeatedly scraped. The paper scraps on the inner wall that cannot be removed by the air feeder 4 are scraped. Further cleaning is achieved.

[0025] The inner wall cleaning assembly 16 further comprises an inclined plate 1621 and a discharge valve 1622, the inner shell 1601 is provided with an inclined block at the top, the inner shell 1601 is provided with the inclined plate 1621 between the inner shell 1601 and the crushing chamber 5, the discharge valve 1622 is arranged at the low part of the inclined plate 1621, the crushing chamber 5 is connected with a discharge pipe 14 at the bottom, the discharge valve 1622 is connected with the discharge pipe 14 through the discharge pipe, the outer shell 1 is provided with a discharge hole at the bottom, the discharge pipe 14 penetrates through the discharge hole, a wheel hole is formed in the center of the planetary gear 1613, the discharge pipe 14 penetrates through the discharge hole and the wheel hole, and the discharge valve 13 is arranged on the output end of the discharge pipe 14, and the conveying pipe is arranged at the bottom of the discharge valve 13. When the paper is crushed, the paper scraps falling through the inclined block enter the crushing chamber 5 at two places, the paper scraps in the center enter the discharge pipe 14, and the paper scraps around are brought to the inclined plate 1621 through the scraper 1611 and are discharged into the discharge pipe 14 through the inclined plate 1621 and the discharge valve 1622. When the paper scraps reach a certain amount, the paper scraps are discharged through the discharge valve 13, so that the paper scraps are automatically cleaned.

[0026] The inner wall cleaning assembly 16 further comprises a rotating block 1605, a clamping block 1606, a rotating plate 1607, a fixed block 1608, a moving groove 1609 and a moving plate 1610, the rotating block 1605 is arranged on each of the plurality of rotating shafts 1604, the rotating shaft 1604 penetrates through the rotating hole formed in each of the plurality of screw sliding blocks 1603, and the rotating plate 1607 is arranged at the end of the rotating shaft 1604, the clamping block 1606 is symmetrically arranged at one end of the screw sliding block 1603 close to the rotating plate 1607, the fixed block 1608 is arranged at the bottom of the screw sliding block 1603, the fixed block 1608 and the rotating plate 1607 are connected through the second spring, the moving groove 1609 is arranged at the bottom of the inner shell 1601 in a circular array, and the moving plate 1610 is slidably arranged in the moving groove 1609, the moving plate 1610 and the rotating block 1605 are in the same plane, and the triangular inclined block is arranged in the moving plate 1610. When the screw sliding block 1603 repeatedly moves on the reciprocating screw 1602, the rotating block 1605 is pushed at the top of the moving plate 1610, the rotating block 1605 drives the rotating shaft 1604 to rotate, so that the scraper 1611 is turned over, the paper scraps above the scraper 1611 cannot be discharged, at the same time, the rotating plate 1607 is hit to the other clamping block 1606 under the action of the second spring, so that the scraper 1611 does not shake during scraping, and the scraping efficiency is affected. The small fan is arranged in the inclined plate 1621, when the scraper 1611 reaches the bottom end, the small fan on the inclined plate 1621 can blow off the paper scraps remaining on the scraper 1611, so that the paper scraps remaining on the scraper 1611 do not affect the scraping.

[0027] The working principle of the application is as follows: When the paper enters the paper cover 2, the material sensor 3 controls the driving motor 11 to start by sensing the presence of material, drives the transmission gear 8 to rotate through the transmission bevel gear 10 and the driven bevel gear 9, and drives the two crushing hubs 7 to rotate through the meshing of the two transmission gears 8, so as to achieve the effect of paper crushing. The air blower 12 sends air to the air distributor 4, and the air distributor 4 changes the direction of the air to clean the waste on the crushing hub 7. At the same time, the air distributor 4 can clean the paper scraps attached to the inner wall of the crushing chamber 5 through the exhaust holes on the inner wall of the crushing chamber 5, so as to achieve the effect of automatic cleaning of waste. When the paper crushing is finished, the air distributor 4 still sends air for a period of time to continue to clean the crushing hub 7 and the inner wall of the crushing chamber 5, so as to realize the self-cleaning of the waste.

[0028] When the driving motor 11 rotates, the first transmission wheel 1504 and the first belt 1508 drive the first driven wheel 1509 to rotate, thereby driving the circumferential plate 1511 to make circumferential motion, and further driving the transmission plate 1512 to make reciprocating movement, so that the piston 1503 in the working box 1502 moves reciprocatingly, thereby making the two water chambers alternately suck water from the water tank 1501 through the water injection pipe 1513 and inject the water into the air distributor 4 through the water spraying pipe 1514, so as to realize the continuous delivery of water to the air distributor 4. The air distributor 4 converts the water into water vapor for spraying, so as to reduce the static electricity remaining on the crushing hub 7 and the inner wall of the crushing chamber 5, and avoid the paper scraps from being adsorbed by static electricity and remaining on the crushing hub 7 and the inner wall.

[0029] When the paper enters the paper cover 2, the material sensor 3 controls the driving motor 11 to rotate forward, so that the crushing hub 7 works. At the same time, the first transmission wheel 1504 rotates forward, and the pawl 1507 is always in contact with the ratchet tooth groove 1505 due to the first spring. The first transmission wheel 1504 will not affect the rotating disc through the pawl 1507, so as to avoid the influence of spraying water mist on the paper crushing efficiency during the paper crushing process. When the paper crushing is finished, the material sensor 3 controls the driving motor 11 to reverse in a timed manner, thereby driving the first transmission wheel 1504 to reverse, driving the rotating disc to rotate through the ratchet tooth groove 1505 and the pawl 1507, and thereby delivering water to the air distributor 4, so as to spray water mist during cleaning, and thereby removing the paper scraps remaining on the inner wall of the crushing chamber 5 due to the adsorption of static electricity.

[0030] When the driving motor 11 rotates, the second transmission wheel 1614 and the second belt 1616 drive the rotating shaft 1617 to rotate, the third transmission wheel 1619 and the third belt 1620 drive the planetary gear 1613 to rotate, thereby driving the reciprocating screw rod 1602 to rotate through the internal inner wheel 1612, and further making the screw rod slider 1603 move reciprocatingly, the scraper 1611 is driven by the rotating shaft 1604 to move longitudinally reciprocatingly, so as to repeatedly scrape the inner wall of the crushing chamber 5, and remove the paper scraps on the inner wall which cannot be removed by the air distributor 4, thereby realizing further cleaning.

[0031] When the paper is shredded, the paper scraps falling through the inclined blocks enter the two places of the shredding chamber 5 respectively, the paper scraps in the center enter the discharge pipe 14, the paper scraps around enter the inclined plate 1621 through the scraper 1611, and are discharged into the discharge pipe 14 through the inclined plate 1621 and the discharge valve 1622, when the paper scraps reach a certain amount, the paper scraps are discharged through the discharge valve 13, realizing the automatic cleaning of the paper scraps.

[0032] When the screw slider 1603 repeatedly moves on the reciprocating screw rod 1602, the moving plate 1610 top pushes and pushes the rotating block 1605, the rotating block 1605 drives the rotating shaft 1604 to rotate, so that the scraper 1611 is turned over, the paper scraps above the scraper 1611 cannot be discharged because of always remaining, at the same time, the rotating plate 1607 is hit to another clamping block 1606 under the action of the second spring, so that the scraper 1611 does not shake during scraping, affecting the scraping efficiency.

[0033] When the scraper 1611 reaches the bottom end, the small fan on the inclined plate 1621 can blow off the paper scraps remaining on the scraper 1611, avoiding the influence of the paper scraps remaining on the scraper 1611 on scraping.

[0034] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A paper shredder with waste removal function, characterized in that: The paper shredder with scrap cleaning function includes a shell (1), an inlet cover (2) is installed on the top of the shell (1), a material sensor (3) is installed on the inlet cover (2), an inlet hole is formed on the top of the shell (1), an air blower (12) is installed on the shell (1), a crushing chamber (5) and a working chamber (6) are formed in the shell (1), an air feeder (4) is installed on the top of the crushing chamber (5), the air feeder (4) is connected with the air blower (12) through a ventilation pipe, two crushing hubs (7) are symmetrically installed in the crushing chamber (5), a through hole is formed on the side of the crushing chamber (5) close to the working chamber (6), the two crushing hubs (7) penetrate the through hole and enter the working chamber (6) and are provided with transmission gears (8), the two transmission gears (8) are engaged, a drive motor (11) is installed in the working chamber (6), a transmission bevel gear (10) is installed on the output end of the drive motor (11), a driven bevel gear (9) is installed at the center of the transmission gear (8) close to the transmission bevel gear (10), the driven bevel gear (9) is engaged with the transmission bevel gear (10), and the drive motor (11) and the air blower (12) are electrically connected with the material sensor (3).

2. The paper shredder with a waste chip cleaning function according to claim 1, characterized in that: A water and gas spraying assembly (15) is arranged in the working chamber (6), and an inner wall cleaning assembly (16) is arranged in the crushing chamber (5), the rotation of the drive motor (11) provides the water and gas spraying assembly (15) and the inner wall cleaning assembly (16) with driving force.

3. The paper shredder with a waste chip cleaning function according to claim 2, characterized in that: The water and gas spraying assembly (15) comprises a water tank (1501), a working tank (1502), a piston (1503), a first transmission wheel (1504), a first belt (1508), a first driven wheel (1509), a fixed pin (1510), a circumferential plate (1511), a transmission plate (1512), a water injection pipe (1513) and a water spraying pipe (1514). The working tank (1502) and the first driven wheel (1509) are installed on the top of the water tank (1501), the fixed pin (1510) is eccentrically installed on the first driven wheel (1509), the circumferential plate (1511) is rotatably installed on the fixed pin (1510), the transmission plate (1512) is rotatably installed on the circumferential plate (1511), the connecting hole is formed on the working tank (1502), the piston (1503) is slidably installed in the working tank (1502), the transmission plate (1512) penetrates the connecting hole and is connected with the piston (1503), the piston (1503) divides the working tank (1502) into two water chambers, the two water chambers are connected with the water tank (1501) through the water injection pipe (1513), the two water chambers are connected with the air feeder (4) through the water spraying pipe (1514), the first transmission wheel (1504) is installed on the output end of the drive motor (11), and the first transmission wheel (1504) is connected with the first driven wheel (1509) through the first belt (1508).

4. The paper shredder with a waste chip cleaning function according to claim 3, characterized in that: The water injection pipe (1513) and the water spraying pipe (1514) are both one-way pipes.

5. The paper shredder with a waste chip cleaning function according to claim 4, characterized in that: The water vapor spraying assembly (15) further comprises a ratchet groove (1505), a fixed clamp (1506) and a pawl (1507). The first transmission wheel (1504) is provided with a ratchet groove (1505), and a rotating disc is installed in the ratchet groove (1505).

6. The paper shredder with a waste chip cleaning function according to claim 5, characterized in that: The inner wall cleaning assembly (16) comprises an inner housing (1601), reciprocating lead screws (1602), lead screw sliding blocks (1603), rotating shafts (1604), scrapers (1611), inner wheels (1612), planetary gears (1613), a second transmission wheel (1614), a second driven wheel (1615), a second belt (1616), a rotating shaft (1617), a support frame (1618), a third transmission wheel (1619) and a third belt (1620). A plurality of reciprocating lead screws (1602) are rotatably installed in the inner housing (1601), and the reciprocating lead screws (1602) are circumferentially arranged in the inner housing (1601).

7. The paper shredder with a waste chip cleaning function according to claim 6, characterized in that: The inner wall cleaning assembly (16) further comprises an inclined plate (1621) and a discharge valve (1622); The inner shell (1601) is provided with an inclined top block at the top, and is provided with an inclined plate (1621) between the inner shell (1601) and the crushing chamber (5), and is provided with a discharge valve (1622) at the lower part of the inclined plate (1621); the crushing chamber (5) is connected with a discharge pipe (14) at the bottom; the discharge valve (1622) is connected with the discharge pipe (14) through a discharge pipe; the outer shell (1) is provided with a discharge hole at the bottom; the discharge pipe (14) penetrates the discharge hole; the planetary gear (1613) is provided with a wheel hole at the center; the discharge pipe (14) penetrates the discharge hole and the wheel hole; the discharge valve (13) is installed on the output end of the discharge pipe (14); and the discharge valve (13) is provided with a conveying pipe at the bottom.

8. The paper shredder with a waste chip cleaning function according to claim 7, characterized in that: The inner wall cleaning assembly (16) further comprises a rotating block (1605), a clamping block (1606), a rotating plate (1607), a fixed block (1608), a moving groove (1609), and a moving plate (1610); A rotating block (1605) is installed on each of the plurality of rotating shafts (1604); a rotating hole is formed in each of the plurality of screw sliding blocks (1603); the rotating shafts (1604) penetrate the rotating holes; the rotating shafts (1604) are provided with rotating plates (1607) at the ends; the screw sliding blocks (1603) are symmetrically provided with clamping blocks (1606) at one end close to the rotating plates (1607); the screw sliding blocks (1603) are provided with fixed blocks (1608) at the bottom; the fixed blocks (1608) and the rotating plates (1607) are connected by second springs; the inner shell (1601) is provided with moving grooves (1609) in a circular array at the bottom; the moving grooves (1609) are slidably provided with moving plates (1610) therein; the moving plates (1610) are in the same plane as the rotating blocks (1605); and the moving plates (1610) are provided with triangular inclined blocks.

9. The paper shredder with a waste chip cleaning function according to claim 8, characterized in that: A small fan is installed on the inclined plate (1621).

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