CN2644148Y - Spiral cooling shroud of cylinder feeding portion - Google Patents
Spiral cooling shroud of cylinder feeding portion Download PDFInfo
- Publication number
- CN2644148Y CN2644148Y CN 03209998 CN03209998U CN2644148Y CN 2644148 Y CN2644148 Y CN 2644148Y CN 03209998 CN03209998 CN 03209998 CN 03209998 U CN03209998 U CN 03209998U CN 2644148 Y CN2644148 Y CN 2644148Y
- Authority
- CN
- China
- Prior art keywords
- bushing
- lining
- spiral cooling
- screw
- cooling bushing
- 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
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a cooling bushing on the loading section of a single screw plastic extrusion machine, which is a spiral type cooling bushing on the loading section of the machine cylinder. The working length of the busing is 3 to 5 times of the screw length, and the outside of the bushing is provided with a passing water groove used for water cooling, which is characterized in that: the inside of the busing is in a spiral channel groove, and the bottom of the channel groove is in an inclined face of 1 to 1.5 degree along the axial direction. The cutting sub force produced in the spiral type cooling bushing afforded by the utility model can push the material to convey ahead, reducing the cutting heat and saving the energy source and the output yield of the extrusion machine is improved.
Description
(1) technical field
The utility model relates to single-screw extruder, relates in particular to the machine barrel feeding section cooling bushing of single-screw extruder.
(2) background technology
In the single-screw extruder of processing of polyolefins goods, the machine barrel feeding section adopts forces reinforced cooling bushing.The reinforced cooling bushing of pressure has been strengthened the rubbing action to material, at first the rapid compacting of material is formed solid plug, then solid plug image-tape wing nut is forced conveying by screw rod, has improved the Solid Conveying and Melting rate, compare with common single screw extrusion machine, output can improve 40%～90%.The reinforced cooling bushing of the existing pressure outside has water-flowing trough to be used for water cooling, the inboard straight channel type groove that adopts of lining, and trench bottom surfaces in axial direction is 1 °～1.5 ° inclined-planes, and the lining active length is 3～5 times of screw diameters.The cooling bushing that adopts straight trough more has suitable shearing effect except strong mechanical friction is arranged.Because the shearing effect of cooling bushing causes the lining temperature rise higher, thereby has consumed a large amount of cooling energies, and the forced conveyance ability of extruder is declined to a great extent, and has reduced output output.
(3) summary of the invention
The utility model has overcome big, the temperature rise of lining shearing force that existing cooling bushing adopts straight trough to produce, and causes the defective of extruder forced conveyance ability drop, provides a kind of machine barrel feeding section spiral cooling bushing.The shearing component that produces in this spiral cooling bushing can promote material and be fed forward, and reduces shear heat, energy savings, the output output of raising extruder.
The utility model is achieved in that the spiral cooling bushing of a kind of machine barrel feeding section, the lining active length is 3～5 times of screw diameters, the lining outside has water-flowing trough to be used for water cooling, it is characterized in that the lining inboard is the screw type groove, and trench bottom surfaces in axial direction is 1 °～1.5 ° inclined-planes.
The above-mentioned spiral cooling bushing of machine barrel feeding section, described groove number is 1/10th screw diameter; The section configuration of described groove is a rectangle.
Operation principle of the present utility model is that the groove with the spiral cooling bushing of machine barrel feeding section inboard changes spiral flute type into from existing straight trough type.The screw type groove can also produce a shearing component identical with the hand of spiral in helicla flute except the frictional force identical with straight trough can be provided, promote material and be fed forward.Because the solid plug that screw rod promotion material forms is moved in lining and is needed certain temperature; adopt the temperature rise of the spiral cooling bushing generation of machine barrel feeding section of screw type groove structure general water cooling to get final product, and solid is plugged with extruding of good protective action realization high yield.Simultaneously the terminal pressure of feeding section can reduce, and shear heat descends, and fusion is steady, realizes that low temperature extrudes, energy savings, and the internal stress that reduces goods had bigger help.
(4) description of drawings
Fig. 1 is the spiral cooling bushing structural representation of the utility model machine barrel feeding section.Fig. 2 is spiral cooling bushing side view.
Among the figure: 1 lining, 2 screw type grooves, 3 water-flowing troughs, α ° of screw type trench bottom surfaces gradient, D screw diameter, n * b screw type groove number and width.
(5) specific embodiment
Provide embodiment of the present utility model below in conjunction with accompanying drawing.
Referring to Fig. 1, Fig. 2, the spiral cooling bushing 1 of a kind of machine barrel feeding section, lining 1 length is that 3～5 times of screw diameters (are 3～5D), lining 1 outside has water-flowing trough 3 to be used for water cooling, lining 1 inboard is a screw type groove 2, and groove 2 bottom surfaces in axial direction are 1 °～1.5 ° inclined-planes, and promptly screw type trench bottom surfaces gradient is 1 °～1.5 ° for α °, groove 2 quantity are 1/10th screw diameter (being the D/10 bar), and the section configuration of groove 2 is a rectangle.Lining 2 usefulness water coolings and the control of employing temperature.
Claims (3)
1. spiral cooling bushing of machine barrel feeding section, the lining active length is 3～5 times of screw diameters, and the lining outside has water-flowing trough to be used for water cooling, it is characterized in that lining is inboard to be the screw type groove, and trench bottom surfaces in axial direction is 1 °～1.5 ° inclined-planes.
2. the spiral cooling bushing of machine barrel feeding section according to claim 1 is characterized in that groove number is 1/10th screw diameter.
3. the spiral cooling bushing of machine barrel feeding section according to claim 1 and 2, the section configuration that it is characterized in that groove is a rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03209998 CN2644148Y (en) | 2003-08-25 | 2003-08-25 | Spiral cooling shroud of cylinder feeding portion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03209998 CN2644148Y (en) | 2003-08-25 | 2003-08-25 | Spiral cooling shroud of cylinder feeding portion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2644148Y true CN2644148Y (en) | 2004-09-29 |
Family
ID=34289207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03209998 Expired - Fee Related CN2644148Y (en) | 2003-08-25 | 2003-08-25 | Spiral cooling shroud of cylinder feeding portion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2644148Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039660A (en) * | 2009-10-26 | 2011-05-04 | 北京化工大学 | Superposed and combined type extruder |
| CN102173045A (en) * | 2011-01-06 | 2011-09-07 | 常州市三橡机械有限公司 | Rubber extruder |
| CN102310541A (en) * | 2011-09-21 | 2012-01-11 | 武汉工程大学 | Polymer material bar single screw extrusion cylinder molding method and molding device thereof |
| CN114851515A (en) * | 2021-02-04 | 2022-08-05 | 江苏汉鼎机械有限公司 | Low smoke and zero halogen barrel for extruder |
-
2003
- 2003-08-25 CN CN 03209998 patent/CN2644148Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102039660A (en) * | 2009-10-26 | 2011-05-04 | 北京化工大学 | Superposed and combined type extruder |
| CN102039660B (en) * | 2009-10-26 | 2013-01-02 | 北京化工大学 | Superposed and combined type extruder |
| CN102173045A (en) * | 2011-01-06 | 2011-09-07 | 常州市三橡机械有限公司 | Rubber extruder |
| CN102310541A (en) * | 2011-09-21 | 2012-01-11 | 武汉工程大学 | Polymer material bar single screw extrusion cylinder molding method and molding device thereof |
| CN102310541B (en) * | 2011-09-21 | 2013-08-07 | 武汉工程大学 | Polymer material bar single screw extrusion cylinder molding method and molding device thereof |
| CN114851515A (en) * | 2021-02-04 | 2022-08-05 | 江苏汉鼎机械有限公司 | Low smoke and zero halogen barrel for 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: 20040929 |