CN-224210289-U - Plastic particle screening device

CN224210289UCN 224210289 UCN224210289 UCN 224210289UCN-224210289-U

Abstract

The embodiment of the application discloses a plastic particle screening device which comprises a screening cylinder, a screening driving mechanism and a feeding mechanism. The screening driving mechanism is connected with the screening cylinder and is used for driving the screening cylinder to rotate. The feeding mechanism comprises a feeding cylinder which is connected with the screening cylinder and penetrates through the screening cylinder. The screening section of thick bamboo includes barrel, first screen cloth and second screen cloth, and the feeding section of thick bamboo is located to the barrel cover, and first screen cloth is around the feeding section of thick bamboo and with feeding section of thick bamboo interval setting to inject the first screening space that is used for storing one-level material grain, second screen cloth is around first screen cloth and with first screen cloth interval setting, with inject the second screening space that is used for storing second grade material grain, the size of one-level material grain is greater than the size of second grade material grain, the distance between first screen cloth and the second screen cloth is greater than the length of one-level material grain and is less than the twice of one-level material grain length, the mesh aperture of first screen cloth is greater than the mesh aperture of second screen cloth, effectively improves screening plant's screening effect.

Inventors

ZHU YIJIANG
CHEN HAIBO
GAO WENMING
HUANG LEI

Assignees

四川朗迪新材料有限公司

Dates

Publication Date: 20260508
Application Date: 20250609

Claims (10)

1. A plastic particle screening apparatus, comprising: A sieving cylinder; The screening driving mechanism is connected with the screening cylinder and used for driving the screening cylinder to rotate; The feeding mechanism comprises a feeding cylinder, and the feeding cylinder is connected with the screening cylinder and penetrates through the screening cylinder so as to enable the feeding cylinder to serve as a rotating shaft for rotating the screening cylinder; The screening cylinder comprises a cylinder body, a first screen and a second screen, the cylinder body is sleeved on the feeding cylinder, the first screen surrounds the feeding cylinder and is arranged at intervals with the feeding cylinder so as to define a first screening space for storing first-stage grains, the second screen surrounds the first screen and is arranged at intervals with the first screen so as to define a second screening space for storing second-stage grains, the size of the first-stage grains is larger than that of the second-stage grains, and the distance between the first screen and the second screen is larger than that of the first-stage grains and smaller than twice the length of the first-stage grains, and the mesh aperture of the first screen is larger than that of the second screen.
2. The plastic particle screening device of claim 1, wherein a distance between the second screen and the barrel is greater than a length of the secondary pellet and less than twice the length of the secondary pellet.
3. The plastic particle screening device according to claim 1, characterized in that the plastic particle screening device comprises a discharge cylinder connected with the screening cylinder and sleeved on the feed cylinder, the discharge cylinder is provided with a primary discharge channel and a secondary discharge channel, the primary discharge channel is communicated with the first screening space, and the secondary discharge channel is communicated with the second screening space.
4. A plastic particle screening apparatus according to claim 3, wherein the portion of the feed cylinder passing through the discharge cylinder constitutes a three stage discharge channel.
5. A plastic particle screening device according to claim 3, further comprising a pushing mechanism arranged at a side of the screening cylinder remote from the discharge cylinder, and wherein a pushing end of the pushing mechanism extends into the first screening space.
6. The plastic particle screening device according to claim 5, wherein the pushing mechanism comprises a pushing cylinder, a reinforcing member and a pushing plate, the pushing cylinder is arranged on one side of the screening cylinder, the output end of the pushing cylinder extends into the screening cylinder, the pushing plate is located in the first screening space and is connected with the output end of the pushing cylinder, one end of the reinforcing member is connected with the output end of the pushing cylinder, and the other end of the reinforcing member is connected with one side of the pushing plate away from the pushing cylinder along the radial direction of the screening cylinder.
7. The plastic particle screening device according to claim 6, wherein the pushing plate is annular, and the inner annular wall and the outer annular edge of the pushing plate are provided with brushes distributed along the circumferential direction.
8. The plastic particle screening device according to claim 1, wherein the screening driving mechanism comprises a driving motor, a driving shaft, a first transmission member and a second transmission member, the output end of the driving motor is connected with the driving shaft, the first transmission member is sleeved on the driving shaft, the second transmission member is sleeved on the feeding cylinder and meshed with the first transmission member, and one side of the second transmission member is connected with the screening cylinder and used for driving the screening cylinder to rotate.
9. The plastic particle screening device according to claim 8, wherein the first transmission member is a driving gear, the second transmission member includes a driven gear and a plurality of connection blocks, the driven gear is meshed with the driving gear, the plurality of connection blocks are arranged on one side of the driven gear in the axial direction and are arranged at intervals along the circumferential direction of the driven gear, and one side of the connection blocks away from the driven gear is connected with the screening cylinder.
10. The plastic particle screening device of claim 1, wherein the feed mechanism further comprises a feed motor, a feed hopper, and a screw, an output of the feed motor being connected to the screw, the screw extending into the feed cylinder, the feed hopper being in communication with the feed cylinder.

Description

Plastic particle screening device Technical Field The application relates to the technical field of plastic particle screening, in particular to a plastic particle screening device. Background The plastic particle screening device is used for screening the size of the plastic particle products subjected to crushing, granulating and other treatments so that the size of the produced plastic particles meets the production and processing requirements, is widely used in the field of plastic product production, and can cause the produced plastic particles to be large or small in the production process. The conventional device for sieving plastic particles usually adopts multi-stage sieving, and screens with different pore diameters are adopted in each sieving stage, so that fine particle size powder and large size material particles in the plastic particles are sieved out. Fine particle size powders are typically chips produced during cutting, and large size pellets typically comprise long strands (meaning pellets of length greater than 2 times normal particles, typically due to abnormal drawing speed of the strand plastic). However, although the length of the long-shaped material particles is far longer than that of the normal material particles, the diameters of the long-shaped material particles and the normal material particles are equivalent, so that the long-shaped material particles can pass through the screen, the existing screening device can not completely distinguish the long-shaped material particles from the normal material particles, and the screening capability needs to be improved. Disclosure of Invention The embodiment of the application provides a plastic particle screening device, which can effectively solve the problem of poor screening effect of the plastic particle screening device. The embodiment of the application provides a plastic particle screening device, which comprises: A sieving cylinder; The screening driving mechanism is connected with the screening cylinder and used for driving the screening cylinder to rotate; The feeding mechanism comprises a feeding cylinder, and the feeding cylinder is connected with the screening cylinder and penetrates through the screening cylinder so as to enable the feeding cylinder to serve as a rotating shaft for rotating the screening cylinder; The screening cylinder comprises a cylinder body, a first screen and a second screen, the cylinder body is sleeved on the feeding cylinder, the first screen surrounds the feeding cylinder and is arranged at intervals with the feeding cylinder so as to define a first screening space for storing first-stage grains, the second screen surrounds the first screen and is arranged at intervals with the first screen so as to define a second screening space for storing second-stage grains, the size of the first-stage grains is larger than that of the second-stage grains, and the distance between the first screen and the second screen is larger than that of the first-stage grains and smaller than twice the length of the first-stage grains, and the mesh aperture of the first screen is larger than that of the second screen. In some embodiments of the application, the distance between the second screen and the cylinder is greater than the length of the secondary pellet and less than twice the length of the secondary pellet. In some embodiments of the present disclosure, the plastic particle screening device includes a discharge cylinder, where the discharge cylinder is connected to the screening cylinder and sleeved on the feed cylinder, and the discharge cylinder is provided with a primary discharge channel and a secondary discharge channel, where the primary discharge channel is communicated with the first screening space, and the secondary discharge channel is communicated with the second screening space. In some embodiments of the present application, the portion of the feed cylinder passing through the take-off cylinder forms a three-stage take-off channel. In some embodiments of the present application, the plastic particle screening device further includes a pushing mechanism, where the pushing mechanism is disposed on a side of the screening cylinder away from the discharging cylinder, and a pushing end of the pushing mechanism extends into the first screening space. In some embodiments of the present application, the pushing mechanism includes a pushing cylinder, a reinforcing member, and a pushing plate, where the pushing cylinder is disposed on one side of the sieving cylinder, and an output end of the pushing cylinder extends into the sieving cylinder, and the pushing plate is disposed in the first sieving space and connected to the output end of the pushing cylinder, one end of the reinforcing member is connected to the output end of the pushing cylinder, and the other end of the reinforcing member is connected to a side of the pushing plate away from the pushing cylinder along a radial direction of the sieving