CN207808416U - A kind of feeding device for the double screw extruder producing plastic raw materials - Google Patents
A kind of feeding device for the double screw extruder producing plastic raw materials Download PDFInfo
- Publication number
- CN207808416U CN207808416U CN201820108548.1U CN201820108548U CN207808416U CN 207808416 U CN207808416 U CN 207808416U CN 201820108548 U CN201820108548 U CN 201820108548U CN 207808416 U CN207808416 U CN 207808416U
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- China
- Prior art keywords
- feed cylinder
- extruder
- feeding device
- raw material
- elevating lever
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of feeding devices for the double screw extruder producing plastic raw materials,Including extruder barrel,Extruder barrel top is equipped with feed cylinder by support tube,Feed hopper is installed on feed cylinder,Motor and assistant feeding device,Motor, which is connected with, squeezes screw rod,Assistant feeding device turns item,Iron block,Elevating lever,Turn item by spring to be connected with feed cylinder,Electromagnet is equipped with right over iron block,The bottom end of elevating lever is equipped with expeller,Lower tilt makes raw material due to gravity and is preferably processed into extruder feed cylinder to the right,Making to squeeze screw rod, to transport raw material lighter,Feeding is more rapidly,It is more smooth,Improve extruder production efficiency,The push block of two elevating lever bottom ends of auxiliary feeding apparatus ceaselessly alternately lifts and the raw material of support tube bottom end is pushed into barrel,Effectively prevent " bridge formation " phenomenon in extruder feeding,Raw material can be by the entrance extruder of matter according to quantity,It is good that extruder produces plastic quality,Save production cost.
Description
Technical field
The utility model is related to plastics-production field, specially a kind of charging for the double screw extruder producing plastic raw materials
Device.
Background technology
Extrusion equipment has screw extruder and plunger-type extruder two major classes, the former squeezes out for continous way, and the latter is interval
Formula squeezes out, and is mainly used for highly viscous material forming, such as polytetrafluoroethylene (PTFE), ultra-high molecular weight polyethylene.Screw extruder can divide
For single screw extrusion machine and multi-screw extruder.Single screw extrusion machine is the upper most basic extruder of production.Multi-screw extruder
Middle double screw extruder is with fastest developing speed in recent years, and application is increasingly extensive.Currently, in the processing of PVC plastic door-window section bar
In, double screw extruder has become main production equipments, and single screw extrusion machine will be phased out.But in squeezing for other polymer
Go out in processing, single screw extrusion machine is still occupied an leading position.
Double-screw plastic extrusion machine is high-quality, efficient plastic extrusion facility, which sets
Meter is reasonable, firm in structure durable, is hardly damaged.For machine material bar using heat treatment carbonization technique, hardness is not easy to wear by force.Service life
It is three times of general material-passing rod.It is tried using advanced lubrication, wears small, crankshaft bearing seat, thoroughly protect bearing, operation easy to maintenance.
But the feeding device of existing double screw extruder has the following defects：
（1）Double screw extruder is typically necessary after raw material feeding hopper, is pushed into extruder barrel by a screw rod
Feed inlet in, due to transport raw material feeding cylinder be in horizontality, pressure is larger when screw rod pushes all raw materials, transport
Raw material efficiency is low, and some raw materials are easy to stick on cartridge wall, to cause to waste；
（2）The diameter of hopper is gradually reduced near the charge door of existing extruder, but variation results in very much soon
Material forms the solid of compacting, and here it is so-called arch formations, raw material can be prevented to enter extruder, to make extruder produce
Degradation, and the raw material inside extruder barrel is also easy to overflow charge door because of the pressure of twin-screw, to make charging
Mouth is easy to be plugged, and dallies so as to cause extruder, not only wastes electric energy, be also greatly reduced the production efficiency of extruder.
Invention content
In order to overcome the shortcomings of that prior art, the utility model provide a kind of twin-screw extrusion producing plastic raw materials
The feeding device of machine, lower tilt makes raw material due to gravity preferably into processing in extruder to feed cylinder to the right, makes to squeeze
It is lighter that screw rod transports raw material, feeding more rapidly, it is more smooth, improve extruder production efficiency, two of auxiliary feeding apparatus
The push block of elevating lever bottom end ceaselessly alternately lifts and the raw material of support tube bottom end is pushed into barrel, effectively prevents extruder
" bridge formation " phenomenon in feeding, raw material can be by the entrance extruder of matter according to quantity, and the extruder quality of production is good, and push block can will squeeze
Go out the raw material push overflowed in machine barrel to go back, avoids the waste of raw material, can effectively solve the problem that the problem of background technology proposes.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of feeding device for the double screw extruder producing plastic raw materials, including extruder barrel, the extruder material
Cylinder top is equipped with support tube, and the support tube top is equipped with feed cylinder, and the left end top side of the feed cylinder is equipped with charging
Bucket, the feed cylinder left end are equipped with motor by mounting base, and feed cylinder right end top side is equipped with auxiliary by mounting bracket
Feed device, the motor is connected with by motor shaft squeezes screw rod；
The assistant feeding device includes the item that turns being movably arranged on by fixing axle on mounting bracket, the left end for turning item
Top is equipped with iron block, and a described turn of left and right ends are hinged with elevating lever, and the right end bottom for turning item is risen by being set in
Spring on the outside of drop bar is connected with feed cylinder, and the electromagnet mounted on mounting bracket top is equipped with right over the iron block, described
The bottom end of elevating lever, which passes through feed cylinder top side and is inserted into support tube, is equipped with expeller.
Further, the bottom end of the feed cylinder tilts under to the right and the axis of feed cylinder and the angle of horizontal plane are 15-
30°。
Further, the feed hopper neck is equipped with inlet valve.
Further, the axis for squeezing screw rod is overlapped with the axis of feed cylinder, the feed cylinder inner wall smooth.
Further, there are two the rod sets being set on the outside of elevating lever for installation inside the feed cylinder.
Compared with prior art, the utility model has the beneficial effects that：
（1）Lower tilt makes raw material due to gravity and preferably adds into extruder the feed cylinder of the utility model to the right
Work, making to squeeze screw rod, to transport raw material lighter, feeding more rapidly, it is more smooth, improve extruder production efficiency；
（2）The push block of two elevating lever bottom ends of the auxiliary feeding apparatus of the utility model ceaselessly alternately lifting and incite somebody to action
The raw material of support tube bottom end is pushed into barrel, does not interfere with raw material and enters the speed of extruder, and effectively prevents extruder feeding
In " bridge formation " phenomenon, raw material can by matter according to quantity enter extruder, the plastic quality that extruder is produced is good, and push block energy
The raw material overflowed in extruder barrel push is gone back, the waste of raw material is avoided.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model.
Figure label：
1- extruder barrels；2- support tubes；3- feed cylinders；4- feed hoppers；5- motors；6- mounting brackets；7- auxiliary charging dresses
It sets；8- squeezes screw rod；9- turns item；10- iron blocks；11- elevating levers；12- springs；13- electromagnet；14- expellers；15- inlet valves；
16- rod sets；17- pillars.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Figure 1, the utility model provides a kind of feeding device for the double screw extruder producing plastic raw materials, packet
Extruder barrel 1 is included, 1 top of the extruder barrel is equipped with support tube 2, and 2 top of the support tube is equipped with feed cylinder 3,
The left end top side of the feed cylinder 3 is equipped with feed hopper 4, and 4 neck of the feed hopper is equipped with inlet valve 15, and inlet valve 15 is controllable
The speed and quality for entering raw material in extruder from feed hopper 4 are made, to keep extrusion machining more smooth.
Supplementary explanation is supported in the bottom end of feed cylinder 3 by several pillars 17 to make feeding device more stablize
On the ground.
The bottom end of the feed cylinder 3 is tilted under to the right and the axis of feed cylinder 3 and the angle of horizontal plane are 15-30 °, plastics
Raw material due to gravity and squeezes under the double action of screw rod 8, raw material enters extruder speed after feed hopper 4 enters feed cylinder 3
Faster, extruder production efficiency higher, therefore, inclined feed cylinder 3, which has, accelerates charging rate to improve production efficiency
Effect.
3 left end of the feed cylinder is equipped with motor 5 by mounting base, and 3 right end top side of the feed cylinder is pacified by mounting bracket 6
Equipped with assistant feeding device 7, the motor 5 is connected with by motor shaft squeezes screw rod 8, the axis for squeezing screw rod 8 with give
The axis of barrel 3 overlaps, 3 inner wall smooth of the feed cylinder, more smooth when push raw material when making to squeeze the rotation of screw rod 8,
It ensure that feeding speed, and raw material will not be stained on smooth 3 inner wall of feed cylinder, the original for avoiding waste and feeding device being made to add
Expect that quality is more accurate, the plastic quality produced is good.
Operation principle in feed cylinder 3 is：After feed hopper 4 enters feed cylinder 3, motor 5 revolves raw material with screw rod 8 is squeezed
Turn, squeezes screw rod 8 and pushed the raw material in feed cylinder 3 to the right by the screw propulsion effect of itself screw thread, to keep raw material steady
Surely enter in extruder barrel 1 from support tube 2.
The assistant feeding device 7 includes being movably arranged on mounting bracket to turn item 9 by fixing axle, the item 9 that turns
Iron block 10 is installed at the top of left end, 9 left and right ends of item that turn are hinged with elevating lever 11, are equipped with inside the feed cylinder 3
Two rod sets 16 for being set in the outside of elevating lever 11, it is more smooth when so that two elevating levers 11 is slided up and down, elevating lever 11 with
The friction of feed cylinder 3 is small, 11 long lifespan of elevating lever, and displacement is more stable.
The right end bottom for turning item 9 is connected by being set in the spring 12 in 11 outside of elevating lever with feed cylinder 3, described
The electromagnet 13 mounted on 6 top of mounting bracket is equipped with right over iron block 10, electromagnet 13 controls its power on/off using relay, from
And enable electromagnet 13 that iron block 10 is constantly sucked and decontrol iron block 10, to make the generation of elevating lever 11 pump.Institute
The bottom end for stating elevating lever 11 passes through 3 top side of feed cylinder and is inserted into support tube 2 and is equipped with expeller 14.
Supplement, 14 end shape of expeller are inverted half truncated cone-shaped, and the funnel for being more easy to be inserted into 2 bottom end of support tube goes out
In material mouth, the bottom end area of two expellers 14 is just suitable with the bottom end of support tube 2 discharging open area.The top of expeller 14
Shape is half truncated cone-shaped, and to make raw material preferably be slided from thereon, raw material will not be deposited on expeller 14.
The operation principle of assistant feeding device 7 is：When electromagnet 13 is powered, iron block 10 is sucked to make in electromagnet 13
Turn the rising of 9 left end of item, right end declines, the at this moment rising of elevating lever 11 on the left side, the decline of liter valence bar 11 on the right, the elevating lever of right end
Expeller 14 on 11 goes down the raw material push that the raw material for getting lodged in discharge port and extruder overflow, and spring 12 is forced at this time
Contracting；When electromagnet 13 powers off, the recovery force effect of spring 12 makes to turn the right end rising of item 9, left end decline, to make left end
Elevating lever 11 moved down with its push block 14, to push and go down the raw material of discharge port left end, complete auxiliary feeding.
Preferably, the push block 14 of two 11 bottom ends of elevating lever ceaselessly alternately lift, hardly influence raw material into
Enter the speed of extruder, and effectively prevent " bridge formation " phenomenon in extruder feeding, raw material can be squeezed out by the entrance of matter according to quantity
Machine, the extruder quality of production is good, and push block 14 goes back the raw material push overflowed in extruder barrel 1, avoids waste.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing in the equivalent requirements of the claims will be fallen
All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
Claims (5)
1. a kind of feeding device for the double screw extruder producing plastic raw materials, including extruder barrel（1）, it is characterised in that：
The extruder barrel（1）Top is equipped with support tube（2）, the support tube（2）Top is equipped with feed cylinder（3）, described to send
Barrel（3）Left end top side feed hopper is installed（4）, the feed cylinder（3）Left end is equipped with motor by mounting base（5）, institute
State feed cylinder（3）Right end top side passes through mounting bracket（6）Assistant feeding device is installed（7）, the motor（5）Connected by motor shaft
It is connected to and squeezes screw rod（8）；
The assistant feeding device（7）Include being movably arranged on mounting bracket to turn item by fixing axle（9）, described to turn item（9）
Left end at the top of iron block is installed（10）, described to turn item（9）Left and right ends are hinged with elevating lever（11）, described to turn item（9）'s
Right end bottom is by being set in elevating lever（11）The spring in outside（12）With feed cylinder（3）It is connected, the iron block（10）On just
Side, which is equipped with, is mounted on mounting bracket（6）The electromagnet on top（13）, the elevating lever（11）Bottom end pass through feed cylinder（3）Top side is simultaneously
It is inserted into support tube（2）Expeller is inside installed（14）.
2. a kind of feeding device of double screw extruder producing plastic raw materials according to claim 1, it is characterised in that：
The feed cylinder（3）Bottom end lower to the right tilt and feed cylinder（3）Axis and the angle of horizontal plane be 15-30 °.
3. a kind of feeding device of double screw extruder producing plastic raw materials according to claim 1, it is characterised in that：
The feed hopper（4）Neck is equipped with inlet valve（15）.
4. a kind of feeding device of double screw extruder producing plastic raw materials according to claim 1, it is characterised in that：
It is described to squeeze screw rod（8）Axis and feed cylinder（3）Axis overlap, the feed cylinder（3）Inner wall smooth.
5. a kind of feeding device of double screw extruder producing plastic raw materials according to claim 1, it is characterised in that：
The feed cylinder（3）There are two be set in elevating lever for inside installation（11）The rod set in outside（16）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820108548.1U CN207808416U (en) | 2018-01-23 | 2018-01-23 | A kind of feeding device for the double screw extruder producing plastic raw materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820108548.1U CN207808416U (en) | 2018-01-23 | 2018-01-23 | A kind of feeding device for the double screw extruder producing plastic raw materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207808416U true CN207808416U (en) | 2018-09-04 |
Family
ID=63324855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820108548.1U Expired - Fee Related CN207808416U (en) | 2018-01-23 | 2018-01-23 | A kind of feeding device for the double screw extruder producing plastic raw materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207808416U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110983550A (en) * | 2019-12-09 | 2020-04-10 | 福清市洪裕塑胶有限公司 | Method for manufacturing woven bag by recycling plastic |
| CN114368126A (en) * | 2022-02-21 | 2022-04-19 | 华中科技大学 | Forced feeding device of extruder and extruder |
-
2018
- 2018-01-23 CN CN201820108548.1U patent/CN207808416U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110983550A (en) * | 2019-12-09 | 2020-04-10 | 福清市洪裕塑胶有限公司 | Method for manufacturing woven bag by recycling plastic |
| CN110983550B (en) * | 2019-12-09 | 2021-06-08 | 福清市洪裕塑胶有限公司 | Method for manufacturing woven bag by recycling plastic |
| CN114368126A (en) * | 2022-02-21 | 2022-04-19 | 华中科技大学 | Forced feeding device of extruder and extruder |
| CN114368126B (en) * | 2022-02-21 | 2023-02-10 | 华中科技大学 | Forced feeding device of extruder and extruder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180904 Termination date: 20200123 |