CN108688122A - A kind of screw extruder dedusting hopper - Google Patents
A kind of screw extruder dedusting hopper Download PDFInfo
- Publication number
- CN108688122A CN108688122A CN201810264290.9A CN201810264290A CN108688122A CN 108688122 A CN108688122 A CN 108688122A CN 201810264290 A CN201810264290 A CN 201810264290A CN 108688122 A CN108688122 A CN 108688122A
- Authority
- CN
- China
- Prior art keywords
- feed
- feed inlets
- screw extruder
- vacuum
- charging basket
- Prior art date
- 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.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/287—Raw material pre-treatment while feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/02—Dispensing from vessels, e.g. hoppers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/27—Cleaning; Purging; Avoiding contamination
- B29C48/271—Cleaning; Purging; Avoiding contamination of feeding units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of screw extruder dedusting hoppers, it includes charging basket lid, columned vacuum rotating absorber is provided with below charging basket lid, it is provided with filtering screen outside vacuum rotating absorber, there are three feed inlets for the lower surface stretching of charging basket lid, three feed inlets are set around outside filtering screen, export direction is the tangential direction of circumference, closed charging transitional storehouse is provided with above charging basket lid, it is protruding on charging transitional storehouse to have feed pipe and vacuum exhaust duct, vacuum exhaust duct extends internally and is connected to vacuum rotating absorber, feed pipe, feed transitional storehouse, three feed inlets are sequentially communicated.Above-mentioned screw extruder dedusting hopper is mainly by being arranged three feed inlets, so that particle is projected from the tangential direction of the exit of three feed inlets circumferentially, and it falls in the shape of a spiral around vacuum rotating absorber, period is persistently by adsorption force, to effectively remove the foreign matters such as dust, impurity and wire drawing, dust removing effects are ensure that.
Description
Technical field
The invention belongs to Screw extruder technology fields, more particularly, to a kind of screw extruder dedusting hopper.
Background technology
Civilian and industrial plastics material products are usually made of screw extruder, and principle is will be after plastic pellet heating and melting
Through mold blowing, extrusion molding, injection molding.However when producing high grade of transparency product, especially in the CD-ROM drive volt of production very thin thickness
When reflectance coating, the impurity such as dust, particle and filament in raw material particle can not be thoroughly removed effectively with existing suction sweeping device,
The film fisheye particle of production can be caused serious, bulky grain will cause the rupture of silicon wafer when suppressing solar panel, production
Product are unqualified.
Vacuum cleaning cavity in existing hopper is flat, and particle enters from unique feed inlet, by vacuum cleaning
Surface dust is simultaneously parabolically fallen downwards, and particle and dusting surface time of contact were less than 0.2 second, and the particle in dropping process
It is gradually remote apart from vacuum cleaning surface, thus dust removing effects are gradually deteriorated.In addition, being sent out during actual use, cleaning and maintenance
Existing filter screen is easy to happen clogging, further reduced dust removing effects.
Therefore the structure of design hopper is needed to be optimized, dedusting function is improved, meets and uses needs.
Invention content
The purpose of the present invention is to provide a kind of screw extruder dedusting hoppers, solve the blocking of filtering Netease, dust removing effects
The problem of difference.
In order to achieve the above object, the present invention uses following technical scheme:
A kind of screw extruder dedusting hopper comprising charging basket lid, wherein be provided with below charging basket lid columned true
Empty rotary adsorber, is provided with filtering screen outside vacuum rotating absorber, and the lower surface of charging basket lid is stretched out there are three feed inlet, and three
A feed inlet is set around the tangential direction that filtering screen is outer and export direction is circumference, be provided with above charging basket lid it is closed into
Expect transitional storehouse, feed it is protruding on transitional storehouse have a feed pipe and vacuum exhaust duct, vacuum exhaust duct extends internally and and vacuum
Rotary adsorber is connected to, and feed pipe, charging transitional storehouse, three feed inlets are sequentially communicated, and material particle enters from feed pipe, by into
Expect that circumferentially tangential direction projects from three feed inlets after transitional storehouse, then falls close to filtering screen in three helical forms.
Wherein, three feed inlets are on same circumference in equidistantly arranging, and smooth stretch out.Material particle is by original parabolic
Threadiness variation is that stereo spiral shape falls, and material particle and the original design of contact effective length ratio of vacuum rotating absorber can be with
Extend about 10~20 times, dedusting is more abundant.
Wherein, the outlet axes of three feed inlets are in same level.
Wherein, the distance of three feed inlets to vacuum rotating absorber is 20mm.
Wherein, material particle is uniform by suction, and continues to rotate close to filtering screen and fall.Vacuum rotating absorber passes through
Equipressure design, sucker area proximally and distally is different, maintains the almost the same of vacuum degree, to ensure that suction is stablized.
To sum up, beneficial effects of the present invention are that compared with prior art, the screw extruder dedusting hopper mainly passes through
Three feed inlets are set so that particle is projected from the tangential direction of the exit of three feed inlets circumferentially, and is revolved around vacuum
Turn absorber to fall in the shape of a spiral, during which persistently by adsorption force, to effectively remove the foreign matters such as dust, impurity and wire drawing,
And because increasing the adsorption area of vacuum cleaning, filtering screen is reduced there is a phenomenon where blocking, ensure that dust removing effects.
Description of the drawings
Fig. 1 is the structural schematic diagram of screw extruder dedusting hopper provided in an embodiment of the present invention;
Fig. 2 is the sectional view of screw extruder dedusting hopper provided in an embodiment of the present invention.
In figure:
1- charging basket lids;2- vacuum rotating absorbers;3- filtering screens;4- feed inlets;5- feeds transitional storehouse;6- feed pipes;
7- vacuum exhaust ducts.
Specific implementation mode
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
It please refers to Fig.1 with shown in 2, the present embodiment provides a kind of screw extruder dedusting hoppers comprising charging basket lid 1, material
The lower section of bung 1 is provided with outside 2 vacuum rotating absorber 2 of columned vacuum rotating absorber and is provided with filtering screen 3, charging basket
The lower surface of lid 1 is stretched out there are three feed inlet 4 with being preferably provided with, and three feed inlets 4 are set around outside filtering screen 3, charging basket lid 1
Top is provided with closed charging transitional storehouse 5, and feeding protruding on transitional storehouse 5 has feed pipe 6 and vacuum exhaust duct 7, vacuum
Exhaust duct 7 extends internally and is connected to vacuum rotating absorber 2, and feed pipe 6, charging 5, three feed inlets 4 of transitional storehouse connect successively
It is logical.
In the present embodiment, by the flat dedusting structure of original diameter 200mm, height 25mm be transformed into diameter 100mm,
The column formula of height 250mm, adsorption surface area directly increase 70%, in addition to can effectively provide lasting adsorption capacity, moreover it is possible to drop
The case where low filtering screen 3 blocks ensures adsorption effect.
In addition, an original feed inlet is transformed into three feed inlets 4, three feed inlets 4 are in equidistant on same circumference
Arrangement, and circumferentially tangential direction is smoothly stretched out, the outlet axes of three feed inlets 4 arrive vacuum rotating in same level
The distance of absorber 2 is about 20mm, and the tangential direction of circumference is fallen where material particle from the outlet of feed inlet 4, is revolved by vacuum
Turn the lasting adsorption force of absorber 2, continues to rotate close to filtering screen 3 and fall.
Especially, it should be noted that material particle whereabouts form is become by original parabolic shape for stereo spiral shape, it is former
The material particle come increases with distance of fall, increasingly remoter apart from vacuum rotating absorber 2, thus dust removing effects are increasingly
Difference, and present vacuum rotating absorber is designed by isobaric, sucker area proximally and distally is different, maintains vacuum degree
It is almost the same so that material particle is always by almost the same suction in dropping process, thus dedusting is more abundant, effectively goes
Except foreign matters such as dust, impurity and wire drawings.
Material particle dust removal process:Material particle enters from feed pipe 6, and it is other to be divided into three stocks after feeding transitional storehouse 5
From the exit of three feed inlets 4, circumferentially tangential direction projects, and the material particle fallen is in initial velocity, its own gravity and vacuum
Under the action of rotary adsorber 2, gradually fall in three helical forms close to filtering screen 3, during which the foreign matter of material particle is adsorbed
It goes out, the particle after dedusting is finally fallen in barrel for using.
The screw extruder dedusting hopper at least has following improvement advantage:
1) the housing surface product for increasing hopper vacuum rotating absorber, avoids filtering screen clogging from occurring;
2) hopper is changed to three present feed inlets by an original feed inlet, and material particle whereabouts mode is by parabola
Shape variation is stereo spiral shape, and dedusting is more abundant;
3) control material particle is at a distance from vacuum rotating absorber so that material particle is under filtering screen rotation
It falls, and persistently by suction.
To sum up, screw extruder dedusting hopper provided in this embodiment, mainly by the way that three feed inlets are arranged so that particle
From the exit of three feed inlets, tangential direction circumferentially projects, and falls in the shape of a spiral around vacuum rotating absorber, the phase
Between persistently by adsorption force, to effectively remove the foreign matters such as dust, impurity and wire drawing, and because increase the suction of vacuum cleaning
Attached area reduces filtering screen there is a phenomenon where blocking, ensure that dust removing effects.
Above example is to elaborate that the basic principle and characteristic of the present invention, the present invention are not limited by above-mentioned example,
Without departing from the spirit and scope, the present invention also has various changes, these changes and modifications are both fallen within
In scope of the claimed invention.The scope of the present invention is defined by the appended claims and its equivalents.
Claims (5)
1. a kind of screw extruder dedusting hopper, including charging basket lid, which is characterized in that be provided with cylinder below the charging basket lid
The vacuum rotating absorber of shape, the vacuum rotating absorber are provided with filtering screen outside, and the lower surface of the charging basket lid is stretched out
There are three feed inlet, three feed inlets are set around the tangential direction that the filtering screen is outer and export direction is circumference, institute
It states and is provided with closed charging transitional storehouse above charging basket lid, it is protruding on the charging transitional storehouse to have feed pipe and vacuum row
Air hose, the vacuum exhaust duct extend internally and are connected to the vacuum rotating absorber, the feed pipe, charging transitional storehouse,
Three feed inlets are sequentially communicated, and material particle enters from feed pipe, from three feed inlets circumferentially tangent line after feeding transitional storehouse
Direction is projected, and is then fallen in three helical forms close to filtering screen.
2. screw extruder dedusting hopper according to claim 1, it is characterised in that:Three feed inlets are in same circle
Equidistantly arrangement on week, and smooth stretching.
3. screw extruder dedusting hopper according to claim 2, it is characterised in that:The outlet axis of three feed inlets
Line is in same level.
4. screw extruder dedusting hopper according to claim 1, it is characterised in that:Three feed inlets are to described true
The distance of empty rotary adsorber is 20mm.
5. screw extruder dedusting hopper according to claim 1, it is characterised in that:Material particle is uniform by suction, and
Continue to rotate close to the filtering screen and fall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810264290.9A CN108688122B (en) | 2018-03-28 | 2018-03-28 | Dust removal hopper of screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810264290.9A CN108688122B (en) | 2018-03-28 | 2018-03-28 | Dust removal hopper of screw extruder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108688122A true CN108688122A (en) | 2018-10-23 |
| CN108688122B CN108688122B (en) | 2020-12-18 |
Family
ID=63844346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810264290.9A Active CN108688122B (en) | 2018-03-28 | 2018-03-28 | Dust removal hopper of screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108688122B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109366929A (en) * | 2018-11-26 | 2019-02-22 | 浙江中邦塑胶股份有限公司 | A kind of dust-extraction unit of extruder feed system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201500495U (en) * | 2009-07-24 | 2010-06-09 | 张钜标 | Cyclone separating filter |
| CN202876601U (en) * | 2012-10-22 | 2013-04-17 | 亚普汽车部件股份有限公司 | Dust collection device with secondary dust collection function |
-
2018
- 2018-03-28 CN CN201810264290.9A patent/CN108688122B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201500495U (en) * | 2009-07-24 | 2010-06-09 | 张钜标 | Cyclone separating filter |
| CN202876601U (en) * | 2012-10-22 | 2013-04-17 | 亚普汽车部件股份有限公司 | Dust collection device with secondary dust collection function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109366929A (en) * | 2018-11-26 | 2019-02-22 | 浙江中邦塑胶股份有限公司 | A kind of dust-extraction unit of extruder feed system |
| CN109366929B (en) * | 2018-11-26 | 2024-02-23 | 浙江中邦塑胶股份有限公司 | Dust collector of extruder feeding system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108688122B (en) | 2020-12-18 |
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