CN110802828A

CN110802828A - Double-screw extruder for polyolefin filling masterbatch

Info

Publication number: CN110802828A
Application number: CN201911072856.9A
Authority: CN
Inventors: 袁俊; 李俊翔; 唐智强; 周树平
Original assignee: Jiangsu Fuhua New Material Technology Co Ltd
Current assignee: Jiangsu Fuhua New Material Technology Co Ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-02-18

Abstract

The invention discloses a double-screw extruder for polyolefin filling masterbatch, which comprises a double-screw extruder and a feeding device, wherein the feeding port of the double-screw extruder is fixedly provided with the feeding device through a bolt, the feeding device comprises a mixing barrel, fixed rods, a rotating shaft, stirring rods, driven bevel gears, a stirring motor and a driving bevel gear, the mixing barrel is fixed at the feeding port of the double-screw extruder, the fixed rods are symmetrically fixed at the inner wall of the mixing barrel, the middle parts of the two fixed rods in the mixing barrel are rotatably connected with the rotating shaft through bearings, the stirring rods are fixed at equal intervals outside the rotating shaft, the driven bevel gears are fixed at the bottoms of the rotating shaft, the stirring motor is fixed at one end, close to the driven bevel gears, outside the mixing barrel, the output end of the stirring motor penetrates through the mixing barrel and is fixed with a driving bevel gear, the driving, the production quality is improved, the raw material blockage is prevented, and the production efficiency is improved.

Description

Double-screw extruder for polyolefin filling masterbatch

Technical Field

The invention relates to the technical field of polyolefin production, in particular to a double-screw extruder for polyolefin filling master batch.

Background

The general name of a thermoplastic resin is that α -olefin such as ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 4-methyl-1-pentene and the like and certain cycloolefins are polymerized or copolymerized independently, during the plastic processing and molding process, required various additives and fillers are mixed with a small amount of carrier resin to prepare granules, the granules consist of the carrier resin, the fillers and the various additives, the service performance and the cost mainly depend on the carrier resin, a double-screw extruder is needed during the processing of polyolefin filling master batch, when the double-screw extruder is used, different raw materials are poured into the double-screw extruder for mixing and heating and extruding, and the double-screw extruder has poor mixing effect on the raw materials, so that the quality of finished products is low;

and the double-screw extruder for the polyolefin filling master batch is easy to block, and the production efficiency is influenced, so that the double-screw extruder for the polyolefin filling master batch is provided.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, and provides a double-screw extruder for polyolefin filling masterbatch, which has better mixing effect and is not easy to block, and comprises a double-screw extruding device and a feeding device, wherein the feeding port of the double-screw extruding device is fixedly provided with the feeding device through a bolt, the feeding device comprises a mixing barrel, a fixed rod, a rotating shaft, stirring rods, driven bevel gears, a stirring motor and a driving bevel gear, the mixing barrel is fixed at the feeding port of the double-screw extruding device, the fixed rods are symmetrically fixed on the inner wall of the mixing barrel, the middle parts of the two fixed rods in the mixing barrel are rotatably connected with the rotating shaft through a bearing, the stirring rods are equidistantly fixed on the outer side of the rotating shaft, the driven bevel gear is fixed at the bottom of the rotating shaft, the stirring motor is fixed at one end, close to the driven bevel gear, of the outer side of, and the driving bevel gear is meshed with the driven bevel gear.

As preferred, mixing drum inner wall upper end is rotated through the bearing symmetry and is connected with the bull stick, bull stick lateral wall equidistance is fixed with the branch flitch, the one end symmetry that the mixing drum outside is close to the bull stick is fixed with divides the material motor, and two output shafts that divide the material motor on the mixing drum respectively with two bull sticks fixed connection in the mixing drum, mixing drum inner wall upper end is located and is fixed with the baffle between two bull sticks.

Preferably, the mixing barrel top is fixed with the feeder hopper, and feeder hopper and mixing barrel intercommunication, the baffle is close to the one end and the feeder hopper inner wall fixed connection of feeder hopper.

Preferably, a sealing shell is fixed at the bottom of a fixing rod at the lower end of the mixing drum, and the driving bevel gear and the driven bevel gear are both positioned on the inner wall of the sealing shell.

Preferably, the two material distributing motors on the mixing drum have opposite rotating directions.

The invention has the beneficial effects that:

1. when the device is used, the feed hopper is divided into two feeding spaces by the baffle plate, two raw materials are respectively poured into the two spaces in the feed hopper, the material distributing motor rotates to drive the two rotating rods to rotate, so that the material distributing plates on the rotating rods rotate, further, the raw materials falling between the material distributing plates rotate along with the material distributing plates and fall on the stirring rods, the rotating rods rotate by 60 degrees every time, the two materials respectively fall by approximately the same amount, the stirring motor rotates to drive the driving bevel gear to rotate, further, the driven bevel gear drives the rotating shafts to rotate, further, the stirring rods are driven to rotate, the two raw materials falling on the stirring rods are scattered and mixed and fall into the feed inlet of the double-screw extrusion device to be extruded, the device mixes the raw materials before entering the double-screw extrusion device and quantitatively puts and mixes the two raw materials through the material distributing plates, greatly improving the mixing effect and improving the production quality.

2. When the raw materials gets into the feeder hopper, if the jam takes place, divide the material motor to drive the bull stick to rotate when rotating, and then make and divide the flitch to rotate, make and divide the flitch to scrape the raw materials that blocks up, and then can prevent that the raw materials from blockking up, and then improve production efficiency.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the feed apparatus of the present invention;

FIG. 3 is a schematic sectional view of the feeding device of the present invention.

In the figure: 1. a twin screw extrusion device; 2. a feeding device; 3. a mixing drum; 4. fixing the rod; 5. a rotating shaft; 6. a stirring rod; 7. a driven bevel gear; 8. a stirring motor; 9. a drive bevel gear; 10. a rotating rod; 11. a material distributing plate; 12. a material distributing motor; 13. a baffle plate; 14. a feed hopper; 15. and (5) sealing the shell.

Detailed Description

Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

The twin-screw extruder for polyolefin filling masterbatch shown in fig. 1-3 comprises a twin-screw extruder 1 and a feeding device 2, wherein the feeding port of the twin-screw extruder 1 is fixed with the feeding device 2 through a bolt, the feeding device 2 comprises a mixing barrel 3, a fixing rod 4, a rotating shaft 5, a stirring rod 6, a driven bevel gear 7, a stirring motor 8 and a driving bevel gear 9, the mixing barrel 3 is fixed at the feeding port of the twin-screw extruder 1, the fixing rod 4 is symmetrically fixed on the inner wall of the mixing barrel 3, the rotating shaft 5 is rotatably connected with the middle parts of the two fixing rods 4 in the mixing barrel 3 through a bearing, the stirring rods 6 are fixed on the outer side of the rotating shaft 5 at equal intervals, the driven bevel gear 7 is fixed at the bottom of the rotating shaft 5, the stirring motor 8 is fixed at one end, close to the driven bevel gear 7, of the outer side of the mixing barrel 3, the output end of the, and the drive bevel gear 9 is in meshed connection with the driven bevel gear 7.

The upper end of the inner wall of the mixing cylinder 3 is symmetrically and rotatably connected with a rotating rod 10 through a bearing, material distributing plates 11 are fixed on the side wall of the rotating rod 10 at equal intervals, material distributing motors 12 are symmetrically fixed at one end of the outer side of the mixing cylinder 3, which is close to the rotating rod 10, and the output shafts of two material-separating motors 12 on the mixing drum 3 are respectively fixedly connected with two rotating rods 10 in the mixing drum 3, a baffle 13 is fixed between the two rotating rods 10 at the upper end of the inner wall of the mixing cylinder 3, the feed hopper 14 is divided into two feeding spaces by the baffle 13, two raw materials are respectively poured into the two spaces in the feed hopper 14, at the moment, the material distributing motor 12 rotates to drive the two rotating rods 10 to rotate, thereby rotating the material distributing plates 11 on the rotating rod 10, further rotating the raw materials falling between the material distributing plates 11 along with the material distributing plates 11, and falls on the stirring rod 6, so that the two materials fall by approximately the same amount for every 60 degrees of rotation of the rotating rod 10.

3 tops of mixing drum are fixed with feeder hopper 14, and

feeder hopper

14 and 3 intercommunications of mixing drum, baffle 13 is close to the one end and the 14 inner wall fixed connection of feeder hopper 14, the unloading of the raw materials of being convenient for.

A sealing shell 15 is fixed at the bottom of a fixing rod 4 at the lower end of the mixing drum 3, the driving bevel gear 9 and the driven bevel gear 7 are both located on the inner wall of the sealing shell 15, and house raw materials are clamped in the driving bevel gear 9 and the driven bevel gear 7 to cause mechanical faults.

The two material distributing motors 12 on the mixing cylinder 3 have opposite rotating directions, so that the raw materials are close to the middle when falling, and the mixing efficiency is improved.

The working principle of the specific embodiment is as follows: during the use, feeder hopper 14 is cut apart into two feeding spaces by baffle 13, pour two kinds of raw materials into two spaces in feeder hopper 14 respectively, divide material motor 12 to rotate this moment, drive two bull sticks 10 and rotate, and then make branch flitch 11 on the bull stick 10 rotate, and then make the raw materials that fall between branch flitch 11 follow branch flitch 11 and rotate, and fall on puddler 6, make bull stick 10 rotate for every 60, make two kinds of materials fall the approximate same quantity respectively, agitator motor 8 rotates this moment, and then drive initiative bevel gear 9 and rotate, and then drive driven bevel gear 7 and rotate, make driven bevel gear 7 drive pivot 5 and rotate, and then drive puddler 6 and rotate, will fall two kinds of raw materials on puddler 6 and break up the mixture, and fall into in twin screw extrusion device 1's the feed inlet and extrude.

The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.

Claims

1. A double screw extruder for polyolefin filling masterbatch, comprises a double screw extrusion device (1) and a feeding device (2), and is characterized in that: the feeding device (2) is fixed at the feeding port of the double-screw extrusion device (1) through bolts, the feeding device (2) comprises a mixing barrel (3), fixing rods (4), a rotating shaft (5), stirring rods (6), driven bevel gears (7), a stirring motor (8) and a driving bevel gear (9), the mixing barrel (3) is fixed at the feeding port of the double-screw extrusion device (1), the fixing rods (4) are symmetrically fixed on the inner wall of the mixing barrel (3), the rotating shaft (5) is connected to the middle parts of the two fixing rods (4) in the mixing barrel (3) through bearings in a rotating mode, the stirring rods (6) are fixed on the outer side of the rotating shaft (5) at equal intervals, the driven bevel gears (7) are fixed at the bottom of the rotating shaft (5), the stirring motor (8) is fixed at one end, close to the driven bevel gears (7), of the outer side of the mixing barrel (3), and the driving bevel gears (9) are fixed, and the driving bevel gear (9) is meshed and connected with the driven bevel gear (7).

2. The twin-screw extruder for polyolefin filling masterbatch according to claim 1, characterized in that: mixing drum (3) inner wall upper end is rotated through the bearing symmetry and is connected with bull stick (10), bull stick (10) lateral wall equidistance is fixed with branch flitch (11), the one end symmetry that mixing drum (3) outside is close to bull stick (10) is fixed with branch material motor (12), and two output shafts that divide material motor (12) on mixing drum (3) respectively with two bull sticks (10) fixed connection in mixing drum (3), mixing drum (3) inner wall upper end is located and is fixed with baffle (13) between two bull sticks (10).

3. The twin-screw extruder for polyolefin filling masterbatch according to claim 1, characterized in that: mixing drum (3) top is fixed with feeder hopper (14), and feeder hopper (14) and mixing drum (3) intercommunication, baffle (13) are close to the one end and feeder hopper (14) inner wall fixed connection of feeder hopper (14).

4. The twin-screw extruder for polyolefin filling masterbatch according to claim 1, characterized in that: a sealing shell (15) is fixed at the bottom of a fixing rod (4) at the lower end of the mixing cylinder (3), and the driving bevel gear (9) and the driven bevel gear (7) are both located on the inner wall of the sealing shell (15).

5. The twin-screw extruder for polyolefin filling masterbatch according to claim 1, characterized in that: the rotating directions of the two material distributing motors (12) on the mixing drum (3) are opposite.