CN201320833Y - Extruding machine screw stem - Google Patents
Extruding machine screw stem Download PDFInfo
- Publication number
- CN201320833Y CN201320833Y CNU200820232803XU CN200820232803U CN201320833Y CN 201320833 Y CN201320833 Y CN 201320833Y CN U200820232803X U CNU200820232803X U CN U200820232803XU CN 200820232803 U CN200820232803 U CN 200820232803U CN 201320833 Y CN201320833 Y CN 201320833Y
- Authority
- CN
- China
- Prior art keywords
- section
- screw rod
- melted
- zone
- compression section
- 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
- 241001661918 Bartonia Species 0.000 title abstract 3
- 239000000463 material Substances 0.000 claims abstract description 36
- 230000006835 compression Effects 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 18
- 239000011343 solid material Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 238000000071 blow moulding Methods 0.000 abstract 3
- 238000000265 homogenisation Methods 0.000 abstract 3
- 230000004927 fusion Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 240000005373 Panax quinquefolius Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
Images
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
- B29C48/36—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
-
- 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
- B29C48/565—Screws having projections other than the thread, e.g. pins
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses an extruding machine screw stem, comprising a screw stem body which is at least divided into a feeding section, a compressing section and a homogenization section; the feeding section, the compressing section and the homogenization section are sequentially arranged along the material moving direction; the compressing section is arranged behind the homogenization section, the time for adsorbing heat in a machine barrel is not only increased before the material is compressed, thereby leading the material to be fully melted and preventing the solid material which is not melted and plasticized from being extruded into a blow molding mould by being contained in melting materials; in addition, the melted material can be directly extruded in the blow molding mould after being compressed, so as to lead the melted material of the blow molding mould to be plasticized uniformly and densely, thereby improving the production quality of the product.
Description
Technical field
The utility model relates to a kind of plastic extruder, relates in particular to the screw rod of using on a kind of plastic extruder.
Background technology
Fig. 2 is the general a kind of screw rod of employing of the plastic extruder institute that is used to produce inflation film at present.This kind screw rod is divided into three sections by fill process, i.e. feed zone, compression section and homogenizing zone.
Material enters the feed zone of screw rod from the machine barrel feed opening, and material is subjected to the effect of screw flight helical angle to promote material to advance, and the machine tube inner wall of the material contact heating of powder shape forms melt film on inwall, scraped by the spiral shell rib of screw rod, enters screw channel.
Material enters the compression section extrusion of the air between the powder grain material is fed back into charge door, and with the material compacting.The spiral shell rib scrapes the melt film on the machine tube inner wall continuously, makes the interior solid material of screw channel become the rheid of fusion gradually.
The homogenizing zone of screw rod (quantitatively section) is because the more shallow material to fusion of screw channel carries out homogenizing.
Material is clamp-oned blow mold after overcompression, homogenizing shortcoming is: material absorbs the time decreased of heat in machine barrel, can also not the solid material package of fusion charing be contained in and clamp-on blow mold in the melting charge together, the material piece that will occur cloud and mist, having reached of silking thus on the film of Sheng Chaning, and material is more of a specified duration to the time ratio of clamp-oning blow mold from the compression section, make the material leakiness that is squeezed in the blow mold, greatly reduce the quality of product.
The utility model content
Technical problem to be solved in the utility model provides the extruder screw of a kind of energy quality of production height, plasticizing inflation film well.
For solving the problems of the technologies described above, the technical solution of the utility model is: extruder screw, comprise the screw rod body, described screw rod body is divided into feed zone, compression section, homogenizing zone at least, and described feed zone, compression section, the homogenizing zone direction by material movement on described screw rod body is followed successively by feed zone, homogenizing zone, compression section.
As a kind of preferred version, the end of described screw rod body is provided with stirring-head.
Owing to adopted technique scheme, extruder screw, comprise the screw rod body, described screw rod body is divided into feed zone, compression section, homogenizing zone at least, and described feed zone, compression section, the homogenizing zone direction by material movement on described screw rod body is followed successively by feed zone, homogenizing zone, compression section; The compression section is after homogenizing zone, not only can make material before compression, increase it and in machine barrel, absorb the time of heat, make material obtain sufficient fusion, preventing that the solid material package of fusion plastification is not contained in clamp-ons blow mold together in the melting charge, and the material that can make fusion directly clamp-ons blow mold and makes the fused materials plasticizing that enters blow mold evenly closely knit after overcompression, improved the quality of production of product.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the prior art constructions schematic diagram.
The specific embodiment
As shown in Figure 1, extruder screw, comprise screw rod body 1, described screw rod body 1 is divided into feed zone 11, compression section 13, homogenizing zone 12 at least, described feed zone 11, compression section 13, homogenizing zone 12 direction by material movement on described screw rod body 1 is followed successively by feed zone 11, homogenizing zone 12, compression section 13, is provided with stirring-head 14 in order to reach better effect at the end of described screw rod body 1.
The course of work of the present utility model is:
At first, material enters the feed zone of screw rod from the machine barrel feed opening, and material is subjected to the effect of screw flight helical angle to promote material to advance, and the machine tube inner wall of the material contact heating of powder shape forms melt film on inwall, scraped by the spiral shell rib of screw rod, enters screw channel.
Secondly, the material of fusion enters homogenizing zone to carrying out homogenizing.
Once more, the material of fusion enters the compression section extrusion of the air between the material is fed back into charge door, and with the material compacting.
At last, the material of fusion through stirring-head once more homogenizing clamp-on in the blow mold.
Claims (2)
1. extruder screw, comprise the screw rod body, described screw rod body is divided into feed zone, compression section, homogenizing zone at least, it is characterized in that: described feed zone, compression section, the homogenizing zone direction by material movement on described screw rod body is followed successively by feed zone, homogenizing zone, compression section.
2. extruder screw as claimed in claim 1 is characterized in that: the end of described screw rod body is provided with stirring-head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820232803XU CN201320833Y (en) | 2008-12-18 | 2008-12-18 | Extruding machine screw stem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820232803XU CN201320833Y (en) | 2008-12-18 | 2008-12-18 | Extruding machine screw stem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201320833Y true CN201320833Y (en) | 2009-10-07 |
Family
ID=41158221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820232803XU Expired - Fee Related CN201320833Y (en) | 2008-12-18 | 2008-12-18 | Extruding machine screw stem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201320833Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465460A (en) * | 2013-09-05 | 2013-12-25 | 昆山地博光电材料有限公司 | Plastic extrusion screw rod of PC (poly carbonate) thin film |
| CN106541555A (en) * | 2017-01-14 | 2017-03-29 | 李红丽 | Screw of plastic extruder |
-
2008
- 2008-12-18 CN CNU200820232803XU patent/CN201320833Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465460A (en) * | 2013-09-05 | 2013-12-25 | 昆山地博光电材料有限公司 | Plastic extrusion screw rod of PC (poly carbonate) thin film |
| CN106541555A (en) * | 2017-01-14 | 2017-03-29 | 李红丽 | Screw of plastic extruder |
| CN106541555B (en) * | 2017-01-14 | 2018-11-20 | 李红丽 | Screw of plastic extruder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091007 Termination date: 20111218 |