CN210679315U

CN210679315U - Waste plastic crushing device

Info

Publication number: CN210679315U
Application number: CN201921573605.4U
Authority: CN
Inventors: 黄志彬
Original assignee: Hubei Shuangyue Industrial Development Co ltd
Current assignee: Hubei Shuangyue Industrial Development Co ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-06-05
Anticipated expiration: 2029-09-20

Abstract

The utility model provides a waste plastic reducing mechanism, includes the crushing barrel, is equipped with the pivot in the crushing barrel, is provided with a plurality of blades in the pivot, the pivot rotatory by driving motor drive, the crushing barrel top is equipped with prevents the feed arrangement that splashes, prevent the feed arrangement that splashes include with the feeding case of crushing barrel top intercommunication, the feeding roof portion is equipped with the feeder hopper, be provided with stock guide and lower stock guide in the feeding case, go up the stock guide and set up respectively on two relative inner walls of feeding case with lower stock guide, go up the equal slope of stock guide and lower stock guide and set up downwards, and go up the stock guide and leave the smooth clearance of plastics down between stock guide and the lower stock guide and the feeding incasement wall. This device can prevent to throw the plastics piece of material department and splash, can carry out the two-stage and smash, and whole device design has reduced manufacturing cost under the prerequisite that satisfies the functional demand.

Description

Waste plastic crushing device

Technical Field

The utility model belongs to plastics production facility field, in particular to waste plastic reducing mechanism.

Background

In the manufacturing process of the plastic pipe, a part of raw materials come from recycled waste plastics, the waste plastics are cleaned and dried, then crushed (or smashed) into smaller plastic blocks, then granulation processing is carried out, and finally the plastic pipe is formed by hot melting. The conventional plastic pulverizing apparatus has many disadvantages, for example, "one kind of waste plastic pulverizing apparatus" described in chinese patent document CN 208697747U, and has the following disadvantages:

1. the rubbing crusher that this patent adopted is for installing the epaxial blade of commentaries on classics, cuts shape crushing to plastics through the rotation of blade, because the rotatory speed of blade is comparatively fast, when needs kibbling plastics drop into the feed cylinder, throw the phenomenon that material mouthful department produced the piece easily and splashes, though current reducing mechanism generally all adopts machinery to throw the material, the dog-house is open design, the condition that the plastic fragments splashes can appear in the inevitable, if there is the staff on the scene, there is the risk that the piece cut.

2. This scheme has only adopted a crushing mode, has only adopted one-level crushing promptly, and rotatory blade is mainly smashed bold plastics, and is not good to the crushing effect of fritter plastics, and especially lie in the plastics of rubbing crusher structure below, its crushing effect is scarce.

Disclosure of Invention

In view of the technical problem that the background art exists, the utility model provides an old and useless plastics reducing mechanism can prevent to throw the plastics piece of material department and splash, can carry out the two-stage and smash, and whole device design has reduced manufacturing cost under the prerequisite that satisfies the functional demand.

In order to solve the technical problem, the utility model discloses following technical scheme has been taken and has been realized:

the utility model provides a waste plastic reducing mechanism, includes the crushing barrel, is equipped with the pivot in the crushing barrel, is provided with a plurality of blades in the pivot, the pivot rotatory by driving motor drive, the crushing barrel top is equipped with prevents the feed arrangement that splashes, prevent the feed arrangement that splashes include with the feeding case of crushing barrel top intercommunication, the feeding roof portion is equipped with the feeder hopper, be provided with stock guide and lower stock guide in the feeding case, go up the stock guide and set up respectively on two relative inner walls of feeding case with lower stock guide, go up the equal slope of stock guide and lower stock guide and set up downwards, and go up the stock guide and leave the smooth clearance of plastics down between stock guide and the lower stock guide and the feeding incasement wall.

In the preferred scheme, the upper material guide plate and the lower material guide plate are hinged with the inner wall of the feeding box, a first eccentric rotating shaft is arranged below the upper material guide plate, and the first eccentric rotating shaft is in contact with the lower surface of the upper material guide plate; a second eccentric rotating shaft is arranged below the lower material guide plate and is in contact with the lower surface of the lower material guide plate; the first eccentric rotating shaft and the second eccentric rotating shaft are driven to rotate by the eccentric rotating shaft driving device.

In a preferred scheme, the eccentric rotating shaft driving device comprises a first belt pulley arranged at the outer end of the first eccentric rotating shaft and a second belt pulley arranged at the outer end of the second eccentric rotating shaft, and the first belt pulley and the second belt pulley are connected through a belt and are arranged outside the feeding box; the center of the first belt pulley is coaxially provided with an extension rod, the outer end of the extension rod is provided with a third belt pulley, the third belt pulley is connected with a fourth belt pulley through a belt, and the fourth belt pulley is connected with an extension section of a rotating shaft in the crushing barrel.

In the preferred scheme, crushing barrel head portion be equipped with the second grade reducing mechanism, the second grade reducing mechanism include with the crushing case of crushing barrel head portion intercommunication, crushing incasement is provided with first commentaries on classics roller and second commentaries on classics roller, first commentaries on classics roller surface is equipped with many arc blades, first commentaries on classics roller and second are changeed the roller and are rotated the roller drive relative rotation by changeing roller drive arrangement.

In a preferable scheme, the roller driving device comprises a first gear, the first gear is meshed with a second gear, the first gear and the second gear are arranged outside the crushing box, the first gear is coaxially connected with the first roller, and the second gear is coaxially connected with the second roller; the first rotating roller or the second rotating roller is connected with the output end of the driving motor through a belt pulley and a belt.

In the preferred scheme, the driving motor is fixed on a motor mounting platform, and the motor mounting platform is welded on the outer wall of the crushing barrel; the front shaft end of the driving motor is provided with a motor driving belt pulley, the motor driving belt pulley is connected with a rotating shaft driving belt pulley through a belt, the rotating shaft driving belt pulley is coaxially connected with the outer end of a rotating shaft, the outer end of the rotating shaft driving belt pulley is provided with an auxiliary wheel, the auxiliary wheel is connected with a rotating roller driving belt pulley through a belt, the rotating roller driving belt pulley is coaxially connected with the outer end of a first rotating roller, and the rotating roller driving belt pulley is positioned outside the crushing box.

In the preferred scheme, the bottom of the crushing box is provided with a discharge hopper.

In a preferred embodiment, the crushing box is supported by legs.

In the preferred scheme, the motor drive belt pulley and the rotating shaft drive belt pulley are externally provided with a belt protective shell, and the auxiliary wheel and the rotating roller drive belt pulley are externally provided with a belt protective shell.

This patent can reach following beneficial effect:

1. the upper material guide plate is positioned on the lower material guide plate, so that the material guide effect is achieved, and more importantly, the plastic fragments can be effectively prevented from splashing by blocking the upper material guide plate and the lower material guide plate.

2. The secondary crushing device can further crush the plastic, because the crushing mechanism with the double-roller structure has poor crushing effect on the plastic blocks with large volume, but the secondary crushing device can well exert the crushing effect on the plastic blocks primarily crushed by the crushing barrel, so that the problem that large plastic blocks cannot enter between the first rotating roller and the second rotating roller is avoided; through two-stage crushing, the waste plastic crushing effect is good.

3. According to the technical scheme, the eccentric rotating shaft driving device of the first eccentric rotating shaft and the eccentric rotating shaft driving device of the second eccentric rotating shaft are driven by the fourth belt pulley, and the power of the fourth belt pulley is from the driving motor, so that the investment of the other motor is saved, and the cost is reduced. The first rotating roller and the second rotating roller are driven by a driving motor, and the purpose is to save investment cost.

Drawings

The invention will be further explained with reference to the following figures and examples:

FIG. 1 is a first three-dimensional structure of the present invention;

fig. 2 is a second three-dimensional structure diagram of the present invention;

FIG. 3 is an internal schematic diagram of the splash-proof feeding device of the present invention;

FIG. 4 is a three-dimensional structure diagram of the first rotating roller and the second rotating roller of the present invention;

FIG. 5 is a schematic view of the connection of the motor driving pulley, the shaft driving pulley, the auxiliary pulley and the roller driving pulley through a belt;

fig. 6 is a left side view of the base of fig. 5.

In the figure: the device comprises a crushing barrel 1, a driving motor 11, a splash-proof feeding device 2, a feeding box 21, a feeding hopper 22, an upper material guide plate 23, a lower material guide plate 24, a first eccentric rotating shaft 31, a second eccentric rotating shaft 32, a first belt pulley 41, a second belt pulley 42, a third belt pulley 43, a fourth belt pulley 44, a secondary crushing device 5, a first rotating roller 51, a second rotating roller 52, an arc-shaped blade 53, a first gear 61, a second gear 62, a motor driving belt pulley 71, a rotating shaft driving belt pulley 72, an auxiliary wheel 73, a rotating roller driving belt pulley 74, a discharging hopper 8 and supporting legs 9.

Detailed Description

The preferable scheme is as shown in fig. 1 to 6, and the waste plastic crushing device comprises a crushing barrel 1, wherein a rotating shaft is arranged in the crushing barrel 1, a plurality of blades are arranged on the rotating shaft, the rotating shaft is driven to rotate by a driving motor 11, an anti-splashing feeding device 2 is arranged at the top of the crushing barrel 1, the anti-splashing feeding device 2 comprises a feeding box 21 communicated with the top of the crushing barrel 1, a feeding hopper 22 is arranged at the top of the feeding box 21, an upper material guide plate 23 and a lower material guide plate 24 are arranged in the feeding box 21, the upper material guide plate 23 and the lower material guide plate 24 are respectively arranged on two inner walls, opposite to the feeding box 21, the upper material guide plate 23 and the lower material guide plate 24 are both obliquely and downwards arranged, and gaps for downward sliding of plastics are reserved between the upper material guide plate 23 and the lower material guide plate 24 and between the upper material guide plate 23 and.

The structure of the blades and the rotating shaft in the technical scheme is the same as that of a crushing mechanism in a waste plastic crushing device described in Chinese patent document CN 208697747U, two ends of the rotating shaft are connected with the crushing barrel 1 through bearing seats, and the crushing barrel 1 is a transversely arranged barrel. The upper material guide plate 23 and the lower material guide plate 24 are connected with the inner wall of the feeding box 21 through hinges, the upper material guide plate 23 and the lower material guide plate 24 can rotate freely, the upper material guide plate 23 and the lower material guide plate 24 are the same in size and shape, the upper material guide plate 23 is positioned above the lower material guide plate 24, the width of the upper material guide plate 23 positioned on the lower material guide plate 24 is the same as the width of the inner wall of the feeding box 21, and the inclined angle of the upper material guide plate 23 positioned on the lower material guide plate 24 in the inclined direction and the horizontal direction is preferably 20-30 degrees; the plastic fragments in the crushing cylinder 1 are prevented from splashing from the feed hopper 22 by the guide function and the splash-preventing function of the upper guide plate 23 on the lower guide plate 24.

Furthermore, the upper material guide plate 23 and the lower material guide plate 24 are hinged with the inner wall of the feeding box 21, a first eccentric rotating shaft 31 is arranged below the upper material guide plate 23, and the first eccentric rotating shaft 31 is in contact with the lower surface of the upper material guide plate 23; a second eccentric rotating shaft 32 is arranged below the lower material guide plate 24, and the second eccentric rotating shaft 32 is in contact with the lower surface of the lower material guide plate 24; the first eccentric rotary shaft 31 and the second eccentric rotary shaft 32 are driven to rotate by the eccentric rotary shaft driving device.

Because the upper material guide plate 23 and the lower material guide plate 24 are arranged, compared with the traditional smashing device, the plastic feeding speed is slow, the plastic discharging speed can be slowed, and plastic blockage can occur, so that the first eccentric rotating shaft 31 and the second eccentric rotating shaft 32 are designed, the upper material guide plate 23 and the lower material guide plate 24 are driven to vibrate through the rotation of the first eccentric rotating shaft 31 and the second eccentric rotating shaft 32, and the plastic discharging is not easy to block.

Further, the eccentric rotating shaft driving device includes a first belt pulley 41 disposed at an outer end of the first eccentric rotating shaft 31 and a second belt pulley 42 disposed at an outer end of the second eccentric rotating shaft 32, the first belt pulley 41 and the second belt pulley 42 are connected by a belt and disposed outside the feeding box 21; an extension rod is coaxially arranged in the center of the first belt pulley 41, a third belt pulley 43 is arranged at the outer end of the extension rod, the third belt pulley 43 is connected with a fourth belt pulley 44 through a belt, and the fourth belt pulley 44 is connected with an extension section of a rotating shaft in the crushing barrel 1.

In the technical scheme, the eccentric rotating shaft driving devices of the first eccentric rotating shaft 31 and the second eccentric rotating shaft 32 are driven by the fourth belt pulley 44, and the power of the fourth belt pulley 44 comes from the driving motor 11, so that the investment of the other motor is saved, and the cost is reduced.

Further, the bottom of the crushing barrel 1 is provided with a second-stage crushing device 5, the second-stage crushing device 5 comprises a crushing box communicated with the bottom of the crushing barrel 1, a first rotating roller 51 and a second rotating roller 52 are arranged in the crushing box, the outer surface of the first rotating roller 51 is provided with a plurality of arc-shaped blades 53, and the first rotating roller 51 and the second rotating roller 52 are driven by a rotating roller driving device to rotate relatively.

Both ends of the first rotating roller 51 and the second rotating roller 52 are fixed with the crushing box through bearing seats, as shown in fig. 4, the first rotating roller 51 and the second rotating roller 52 are arranged in parallel, the arc-shaped blades 53 are in surface contact with the second rotating roller 52, the number of the arc-shaped blades 53 is 6-8, the arc-shaped blades 53 are spirally arranged around the surface of the first rotating roller 51, and the number of the spiral turns is 0.25.

Further, the roller driving means includes a first gear 61, the first gear 61 and a second gear 62 are engaged, the first gear 61 and the second gear 62 are disposed outside the crushing box, the first gear 61 is coaxially connected with the first roller 51, and the second gear 62 is coaxially connected with the second roller 52; the first roller 51 or the second roller 52 is connected to the output end of the drive motor 11 via a pulley and a belt.

As shown in fig. 4, in the modified view, when viewed from the left side, the first gear 61 rotates counterclockwise, and the second gear 62 rotates clockwise, so that the linear speed directions of the rotation of the middle portions of the first rotating roller 51 and the second rotating roller 52 are both downward.

Further, a driving motor 11 is fixed on a motor mounting platform, and the motor mounting platform is welded on the outer wall of the crushing barrel 1; the front shaft end of the driving motor 11 is provided with a motor driving belt pulley 71, the motor driving belt pulley 71 is connected with a rotating shaft driving belt pulley 72 through a belt, the rotating shaft driving belt pulley 72 is coaxially connected with the outer end of the rotating shaft, the outer end of the rotating shaft driving belt pulley 72 is provided with an auxiliary wheel 73, the auxiliary wheel 73 is connected with a rotating roller driving belt pulley 74 through a belt, the rotating roller driving belt pulley 74 is coaxially connected with the outer end of the first rotating roller 51, and the rotating roller driving belt pulley 74 is positioned outside the crushing box. Belt protecting cases are provided outside the motor drive pulley 71 and the rotating shaft drive pulley 72, and belt protecting cases are provided outside the secondary pulley 73 and the rotating roller drive pulley 74. The belt protection shell is fixed in a welding or bolt connection mode.

In the present embodiment, the first rotating roller 51 and the second rotating roller 52 are also driven by the driving motor 11, and the purpose is to save the input cost.

Furthermore, a discharge hopper 8 is arranged at the bottom of the crushing box.

Further, the crushing box is supported by legs 9.

The working principle of the whole device is as follows:

the upper material guide plate 23 and the lower material guide plate 24 are connected with the inner wall of the feeding box 21 through hinges, the upper material guide plate 23 and the lower material guide plate 24 can rotate freely, the upper material guide plate 23 is positioned above the lower material guide plate 24, and gaps for plastic sliding are reserved between the upper material guide plate 23 and the lower material guide plate 24 and the inner wall of the feeding box 21. The upper guide plate 23 is positioned on the lower guide plate 24 and has the same width as the inner wall of the feeding box 21. The lower edges of the upper and

lower guide plates

23 and 24 are offset from each other and have a partial overlapping area, so that the downward projected areas of the upper and

lower guide plates

23 and 24 completely cover the cross section of the feeding box 21. The upper material guide plate 23 is positioned on the lower material guide plate 24, so that the material guide effect is achieved, and more importantly, the plastic fragments can be effectively prevented from splashing by the blocking of the upper material guide plate 23 and the lower material guide plate 24.

The second-stage crushing device 5 can further crush the plastic, because the crushing mechanism with the double-roller structure has poor crushing effect on the large plastic blocks, but the second-stage crushing device 5 can well exert the crushing effect on the plastic blocks primarily crushed by the crushing barrel 1, and the problem that large plastic blocks cannot enter between the first rotating roller 51 and the second rotating roller 52 is avoided.

Claims

1. The utility model provides a waste plastic reducing mechanism, includes crushing barrel (1), is equipped with the pivot in crushing barrel (1), is provided with a plurality of blades in the pivot, the pivot rotatory by driving motor (11) drive, its characterized in that: the top of the crushing barrel (1) is provided with a splash-proof feeding device (2), the splash-proof feeding device (2) comprises a feeding box (21) communicated with the top of the crushing barrel (1), the top of the feeding box (21) is provided with a feeding hopper (22), an upper guide plate (23) and a lower guide plate (24) are arranged in the feeding box (21), the upper guide plate (23) and the lower guide plate (24) are respectively arranged on two inner walls opposite to the feeding box (21), the upper guide plate (23) and the lower guide plate (24) are all obliquely and downwards arranged, and gaps for downward sliding of plastics are reserved between the upper guide plate (23) and the lower guide plate (24) and between the upper guide plate (23) and the inner walls of the lower guide plate (24) and the feeding box (21).

2. The waste plastic pulverizing apparatus according to claim 1, characterized in that: the upper material guide plate (23) and the lower material guide plate (24) are hinged with the inner wall of the feeding box (21), a first eccentric rotating shaft (31) is arranged below the upper material guide plate (23), and the first eccentric rotating shaft (31) is in contact with the lower surface of the upper material guide plate (23); a second eccentric rotating shaft (32) is arranged below the lower material guide plate (24), and the second eccentric rotating shaft (32) is in contact with the lower surface of the lower material guide plate (24); the first eccentric rotating shaft (31) and the second eccentric rotating shaft (32) are driven to rotate by an eccentric rotating shaft driving device.

3. The waste plastic pulverizing apparatus according to claim 2, characterized in that: the eccentric rotating shaft driving device comprises a first belt pulley (41) arranged at the outer end of the first eccentric rotating shaft (31) and a second belt pulley (42) arranged at the outer end of the second eccentric rotating shaft (32), and the first belt pulley (41) and the second belt pulley (42) are connected through a belt and are arranged outside the feeding box (21); an extension rod is coaxially arranged in the center of the first belt pulley (41), a third belt pulley (43) is arranged at the outer end of the extension rod, the third belt pulley (43) is connected with a fourth belt pulley (44) through a belt, and the fourth belt pulley (44) is connected with an extension section of a rotating shaft in the crushing barrel (1).

4. The waste plastic pulverizing apparatus according to claim 1, characterized in that: the bottom of the crushing barrel (1) is provided with a secondary crushing device (5), the secondary crushing device (5) comprises a crushing box communicated with the bottom of the crushing barrel (1), a first rotating roller (51) and a second rotating roller (52) are arranged in the crushing box, the outer surface of the first rotating roller (51) is provided with a plurality of arc-shaped blades (53), and the first rotating roller (51) and the second rotating roller (52) are driven by a rotating roller driving device to rotate relatively.

5. The waste plastic pulverizing apparatus according to claim 4, wherein: the roller driving device comprises a first gear (61), the first gear (61) is meshed with a second gear (62), the first gear (61) and the second gear (62) are arranged outside the crushing box, the first gear (61) is coaxially connected with the first roller (51), and the second gear (62) is coaxially connected with the second roller (52); the first rotating roller (51) or the second rotating roller (52) is connected with the output end of the driving motor (11) through a belt pulley and a belt.

6. The waste plastic pulverizing apparatus according to claim 5, characterized in that: the driving motor (11) is fixed on a motor mounting platform, and the motor mounting platform is welded on the outer wall of the crushing barrel (1); the front shaft end of the driving motor (11) is provided with a motor driving belt pulley (71), the motor driving belt pulley (71) is connected with a rotating shaft driving belt pulley (72) through a belt, the rotating shaft driving belt pulley (72) is coaxially connected with the outer end of a rotating shaft, the outer end of the rotating shaft driving belt pulley (72) is provided with an auxiliary wheel (73), the auxiliary wheel (73) is connected with a rotating roller driving belt pulley (74) through a belt, the rotating roller driving belt pulley (74) is coaxially connected with the outer end of a first rotating roller (51), and the rotating roller driving belt pulley (74) is located outside the crushing box.

7. The waste plastic pulverizing apparatus according to claim 5, characterized in that: the bottom of the crushing box is provided with a discharge hopper (8).

8. The waste plastic pulverizing apparatus according to claim 5, characterized in that: the crushing box is supported by legs (9).

9. The waste plastic pulverizing apparatus according to claim 5, characterized in that: the motor driving belt pulley (71) and the rotating shaft driving belt pulley (72) are externally provided with belt protective housings, and the auxiliary wheel (73) and the rotating roller driving belt pulley (74) are externally provided with belt protective housings.