CN2744504Y - Screw rod used for plastics reclaiming machine - Google Patents
Screw rod used for plastics reclaiming machine Download PDFInfo
- Publication number
- CN2744504Y CN2744504Y CNU2004200796200U CN200420079620U CN2744504Y CN 2744504 Y CN2744504 Y CN 2744504Y CN U2004200796200 U CNU2004200796200 U CN U2004200796200U CN 200420079620 U CN200420079620 U CN 200420079620U CN 2744504 Y CN2744504 Y CN 2744504Y
- Authority
- CN
- China
- Prior art keywords
- section
- screw rod
- discharge portion
- feeding section
- discharging
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/67—Screws having incorporated mixing devices not provided for in groups B29C48/52 - B29C48/66
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
Abstract
The utility model discloses a recovering single screw rod with a big slenderness ratio and double air exhausts used for plastics recovering machine, comprising a feeding section, a melting compression section and a discharging section. A cooling trough is arranged in the feeding section, and the melting compression section comprises a compacting portion, an exhausting portion and a diverting belt. One end of the compacting portion is connected with the feeding section, the other end of the compacting portion is connected with the exhausting portion through the diverting belt, and the inner diameter of the exhausting portion is gradually increased from the diverting belt. The discharging section with equal inner diameter and equal pitch is connected with the exhausting portion. The screw rod has sufficient compression, good plasticizing quality and stable extrusion capacity. The utility model has extensive application in a high-efficiency polyester plastic recovering machine.
Description
One, technical field
The utility model belongs to the parts in polyester (PET) the plastic sheeting fragment recovery comminutor, specifically a kind of screw rod that is used for the plastics recovery machine.
Two, background technology
The screw rod design plays crucial effects in reclaiming granulation process.After solid material added from compacting machine, under the screw acting that is rotating, the mill sassafras effect by machine tube inner wall and screw surface was fed forward material and compacting.Material generates the sassafras heat of rubbing in the process of advancing, material is raise gradually along barrel temperature forward, outside barrel under the effect of heating collar, material is transformed into the fluid state of fusion from solid state, the material of fusion continuously is transported to screw front end, by screen pack, flow distribution plate enters the head moulding.Existing plastic recoverying equipment is the form processing of extruding that adopts twin-screw mostly, and film fragments is forced to be pressed into by feed screw, through in the same way or the incongruous double screw melt pelletization, the length of this screw rod is short, screw thread is shallow, and draw ratio is little, can not use in efficient single screw rod polyester plastics recovery machine.
Three, summary of the invention
The purpose of this utility model provides a kind of double gas of the interior cooling of big L/D ratio that is used for the plastics recovery machine and reclaims single screw rod, and this screw rod pressurization is abundant, and plasticizing quality is good, and extrusion capacity is stable.
The purpose of this utility model is achieved like this: a kind of screw rod that is used for the plastics recovery machine is characterized in that: it comprises feeding section, fusion compression section and discharging section, is provided with cooling bath in feeding section; The fusion compression section comprises compaction part, discharge portion and shunting band, and an end of compaction part is connected with feeding section, and the other end is connected with discharge portion by the shunting band, and the internal diameter of discharge portion is increased gradually by the beginning of shunting band; The discharging section of uniform internal diameter, uniform pitch is connected with discharge portion.
Usually can carry gas in the process that material is melted gradually secretly extrudes; therefore; the utility model has designed discharge portion in the fusion compression section; deviate from the needs in time and space for satisfying in the material gas; consider polymer when discharge portion bubbles, bring in constant renewal in the surface; adopted two helicitic textures at discharge portion, more spiral shell rib quickens the renewal of bath surface.The gas of discharging can adopt double gas port to vacuumize.
When material entered discharging section, temperature and plasticizing rate were even inadequately, also will be further evenly by plasticizing, and therefore, the utility model is provided with runner at the end of discharging section.This runner has changed the flow direction of material, quickens fusion, has strengthened mixing and plasticizing effect.
The utility model is divided into three basic function districts with screw rod, i.e. feeding section, fusion compression section and discharging section according to material states of matter change procedure in screw rod in extrusion.
Wherein, feeding section is one section that begins to present from the extruder spout to material the molten condition.Be solid state at feeding section, feeding section latter end, material are because of the deliquescing of being heated, and the structure of feeding section is applicable to PET family macromolecule amount, the material that high density Solid Conveying and Melting rate is lower, particularly overcome when carrying lightweight film fragments material, easily caused the phenomenon of " bridge formation " at charge door.Screw rod described in the utility model is smoothly reinforced, and extrusion capacity is stable, has designed interior cooling at the feeding section screw rod, is convenient to the conveying of material.
The fusion compression section is a section that material begins to be molten to the complete fusion of material in the screw channel, and its effect is to make material further be compacted, plastify.Taken into full account the length ratio of extruding flow velocity and melting zone when designing in the fusion compression section, make Solid Conveying and Melting rate and melting rate be complementary, extrusion capacity is stable, simultaneously, in the design of screw rod parameter, take into full account the compression of material, helped the heat conduction, the variation of the pitch depth, played the effect of quickening fusion, the gas of carrying secretly in the process that material is melted gradually extrudes.Therefore, designed discharge portion in this section, the time and the space of needs when deviating from for satisfying gas in the material consider that polymer brings in constant renewal in the surface when discharge portion bubbles, designed two screw threads at discharge portion, more spiral shell rib can quicken the renewal of bath surface.The gas of discharging has adopted double gas port to vacuumize.
Discharging section is terminal before head one section from discharge portion.When material entered discharging section, temperature and plasticizing rate were even inadequately, so will be further by plasticizing evenly.Therefore, be provided with runner at the end of discharging section, runner has changed the flow direction of material, quickens fusion, has strengthened mixing and plasticizing effect, owing to adopted uniform internal diameter, uniform pitch, thereby can accurately measure.
The utility model adopts the double gas of the interior cooling of big L/D ratio to reclaim single screw rod, and screw diameter is 120MM, and draw ratio is 38, and is relatively more rare at home.From situation about using, this screw rod pressurization is abundant, and plasticizing quality is good, and extrusion capacity is stable, is well suited for using in efficient single screw rod polyester plastics recovery machine.
Four, description of drawings
Accompanying drawing is a structural representation of the present utility model.
Five, the specific embodiment
A kind of screw rod that is used for the plastics recovery machine described in the utility model comprises feeding section 1, fusion compression section 2 and discharging section 3, is provided with cooling bath 4 in feeding section 1, and the screw thread in the feeding section 1 is darker; Fusion compression section 2 is with 7 to form by compaction part 5, discharge portion 6 and shunting, one end of compaction part 5 is connected with feeding section 1, the other end is with 7 to be connected with discharge portion 6 by shunting, the internal diameter of compaction part 5 is increased gradually by feeding section 1 beginning, and the internal diameter of discharge portion 6 is with 7 beginnings to increase gradually by shunting; The discharging section 3 of uniform internal diameter, uniform pitch is connected with discharge portion 6.Discharge portion 6 has adopted two helicitic textures, and more spiral shell rib can quicken the renewal of bath surface, and the gas of discharge can adopt double gas port to vacuumize.End at discharging section 3 is provided with runner, and runner has changed the flow direction of material, quickens fusion, has strengthened mixing and plasticizing effect, because discharging section 3 has adopted uniform internal diameter, uniform pitch, thereby can accurately measure.
The feeding of present domestic most of extruder is a mandatory feeding suitable for reading, and screw rod of the present utility model adopts the mandatory feeding in side.Screw rod design has taken into full account the length ratio of extruding flow velocity and melting zone, and screw diameter is 120MM, and draw ratio is 38, makes Solid Conveying and Melting rate and melting rate be complementary, and extrusion capacity is stablized; Adopt double gas port to vacuumize, degassing effect is better; In the tip designs of screw rod change the runner of Flow of Goods and Materials direction, quicken fusion, strengthened mixing and plasticizing effect.
Claims (3)
1, a kind of screw rod that is used for the plastics recovery machine is characterized in that: it comprises feeding section (1), fusion compression section (2) and discharging section (3), is provided with cooling bath (4) in feeding section (1); Fusion compression section (2) comprises compaction part (5), discharge portion (6) and shunting band (7), one end of compaction part (5) is connected with feeding section (1), the other end is connected with discharge portion (6) by shunting band (7), and the internal diameter of discharge portion (6) is increased gradually by shunting band (7) beginning; The discharging section of uniform internal diameter, uniform pitch (3) is connected with double gas part (6).
2, the screw rod that is used for the plastics recovery machine according to claim 1 is characterized in that: discharge portion (6) is two helicitic textures.
3, the screw rod that is used for the plastics recovery machine according to claim 1 is characterized in that: the end at discharging section (3) is provided with the runner that changes the Flow of Goods and Materials direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200796200U CN2744504Y (en) | 2004-09-20 | 2004-09-20 | Screw rod used for plastics reclaiming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200796200U CN2744504Y (en) | 2004-09-20 | 2004-09-20 | Screw rod used for plastics reclaiming machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2744504Y true CN2744504Y (en) | 2005-12-07 |
Family
ID=35579291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200796200U Expired - Fee Related CN2744504Y (en) | 2004-09-20 | 2004-09-20 | Screw rod used for plastics reclaiming machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2744504Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767421A (en) * | 2010-03-20 | 2010-07-07 | 杭州捷立精密机械有限公司 | Special low-grade plastic screw rod for caster |
| CN102009464A (en) * | 2010-08-10 | 2011-04-13 | 昆山科信橡塑机械有限公司 | Special non-woven fabric screw for extruder |
| CN104802332A (en) * | 2015-03-13 | 2015-07-29 | 宁波绿华橡塑机械工贸有限公司 | EVA (ethylene-vinyl acetate) adhesive film recovery granulator |
| CN105922473A (en) * | 2016-04-28 | 2016-09-07 | 安徽省华晨塑业科技有限公司 | Special high-performance heat conducting insulation alloy screw rod for reworked plastic modification |
-
2004
- 2004-09-20 CN CNU2004200796200U patent/CN2744504Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767421A (en) * | 2010-03-20 | 2010-07-07 | 杭州捷立精密机械有限公司 | Special low-grade plastic screw rod for caster |
| CN102009464A (en) * | 2010-08-10 | 2011-04-13 | 昆山科信橡塑机械有限公司 | Special non-woven fabric screw for extruder |
| CN102009464B (en) * | 2010-08-10 | 2013-09-11 | 昆山科信橡塑机械有限公司 | Special non-woven fabric screw for extruder |
| CN104802332A (en) * | 2015-03-13 | 2015-07-29 | 宁波绿华橡塑机械工贸有限公司 | EVA (ethylene-vinyl acetate) adhesive film recovery granulator |
| CN105922473A (en) * | 2016-04-28 | 2016-09-07 | 安徽省华晨塑业科技有限公司 | Special high-performance heat conducting insulation alloy screw rod for reworked plastic modification |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101942140B (en) | Wood plastic composite foaming material and forming process and equipment thereof | |
| CN2918020Y (en) | Crushing material supplying type evacuation machine head plastic pelletizer | |
| CN101945743A (en) | Method and device for injection molding plastic material | |
| CN206066895U (en) | A kind of mobile phone shell processing good plastic extruder of extrusion effect | |
| CN201841624U (en) | Forming equipment of wood-plastic composite foaming material | |
| CN2744504Y (en) | Screw rod used for plastics reclaiming machine | |
| CN102601886B (en) | Rich mineral paper masterbatch extruding granulator set | |
| CN203994736U (en) | Pvc pipe material modification on-line continuous production line | |
| CN204869330U (en) | Single screw plastic exdruder | |
| CN204869584U (en) | Single -screw extruder | |
| CN201376340Y (en) | Exhaust-type single-screw waste plastic reclamation extruder | |
| CN208452257U (en) | Extruder for medical PVC material | |
| CN201669874U (en) | High-speed extrusion single screw for polypropylene | |
| CN214000119U (en) | Plastic granules's extrusion moulding equipment | |
| CN211467401U (en) | Polyethylene plastic rim charge recycling extruder | |
| CN212446215U (en) | Single-screw extruder for pipe production line | |
| CN2740378Y (en) | Polyester plastic recovering device with single screw | |
| CN208529689U (en) | A kind of dedicated exhaust screw of acrylic leftover pieces extrusion board | |
| CN202685135U (en) | Extruding and granulating unit for rich mineral paper (RMP) masterbatch | |
| CN105014819A (en) | Single-screw plastic extruder | |
| CN103182775B (en) | The volume displaced tensile deformation plasticizing processing method of a kind of twin-screw and equipment | |
| CN201645799U (en) | Special screw rod for low-smoke and halogen-free material | |
| CN203317725U (en) | Special precision extrusion device for polyvinylidene fluoride (PVDF) | |
| CN201320833Y (en) | Extruding machine screw stem | |
| CN1166506C (en) | Single-screw extruder for hard polyvinyl chloride |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |