CN205631329U - Screw extruder's heating structure - Google Patents
Screw extruder's heating structure Download PDFInfo
- Publication number
- CN205631329U CN205631329U CN201620423017.2U CN201620423017U CN205631329U CN 205631329 U CN205631329 U CN 205631329U CN 201620423017 U CN201620423017 U CN 201620423017U CN 205631329 U CN205631329 U CN 205631329U
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- conduction oil
- screw extruder
- cavity
- pipe
- 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
- 238000010438 heat treatment Methods 0.000 title claims abstract description 19
- 239000006185 dispersion Substances 0.000 claims description 15
- 239000002937 thermal insulation foam Substances 0.000 claims description 8
- 239000011347 resin Substances 0.000 abstract description 22
- 229920005989 resin Polymers 0.000 abstract description 22
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 238000010008 shearing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides a screw extruder's heating structure, includes the barrel, the outside cover of barrel is equipped with the sleeve pipe, be formed with the cavity between barrel and the sleeve pipe, the below of sheathed tube length intermediate position is equipped with into oil pipe, the top at sheathed tube both ends is equipped with out oil pipe respectively, advance oil pipe and go out oil pipe and all be linked together with the cavity. Through foretell technical scheme, the oil pipe that advances that the sleeve pipe intermediate position at first can be followed to the conduction oil enters into the cavity, then the conduction oil respectively two tip directions of looks sheathed tube flow, thereby reduce the flow path of conduction oil distance to original 12, can effectually avoid the resin can be had good flow state all the time by the in -process that the extrusion was cuted like this in the barrel, the work load of screw rod has been reduced, also can reduce the damaged condition of screw rod, the life -span of extruder has been prolonged.
Description
Technical field
This utility model relates to device of plastic processing field, particularly to the heating arrangement of a kind of screw extruder.
Background technology
Screw extruder is dependent on screw rod and rotates the pressure and shearing force produced, and material can be made fully to carry out plastifying and uniformly mixing, by mouth die molding.And the when of carrying out extruding work in screw extruder, generally require and the resin in extruder is first heated so that it is be melted into melt, such resin can be sufficiently mixed with auxiliary agent, and can successfully be extruded.And the mode of heating of existing extruder, have be greatly utilize heat-conducting oil heating cylinder after heated the resin of inside again by cylinder.
Meanwhile, conduction oil utilizes heat pipe to carry out carrying often, and generally, the oil inlet pipe of heat pipe is provided in one end of extruder barrel, and flowline is provided in the other end of extruder barrel, although, so can more fully hereinafter utilize the heat energy of conduction oil to carry out heated resin.But, due to its length of cylinder of general extruder compare big, what so the flow path of conduction oil can compare is big, thus cause when conduction oil leaves cylinder soon when, it is low that its temperature can compare, and is now difficult to ensure that resin is in molten condition, thus resin will gradually solidify, increase the load of screw rod, screw rod is easily caused abrasion.
Utility model content
The purpose of this utility model is that providing a kind of reduces the heating arrangement that extruder occurs the screw extruder of solidification during extrusion.
Above-mentioned purpose of the present utility model has the technical scheme that the heating arrangement of a kind of screw extruder, including cylinder, the outer sheath of described cylinder is provided with sleeve pipe, it is formed with cavity between described cylinder and sleeve pipe, the lower section of the mid-length position of described sleeve pipe is provided with oil inlet pipe, the top at the both ends of described sleeve pipe is respectively equipped with flowline, and described oil inlet pipe is all connected with cavity with flowline.
By above-mentioned technical scheme, first conduction oil can enter into cavity from the oil inlet pipe in sleeve pipe centre position, then two end directions of conduction oil phase sleeve pipe respectively flow, thus the flow path distance of conduction oil has been narrowed down to original 1/2, so can effectively avoid resin can have good flow regime all the time during being extruded shearing in cylinder, reduce the workload of screw rod, it is also possible to reduce the damaged condition of screw rod, extend the life-span of extruder.
As preferably, described cylinder is provided with dispersion oar towards oil inlet pipe.
When conduction oil enters in cavity from oil inlet pipe when, conduction oil will be directly impinging on dispersion oar, and now disperses oar to rotate, and is to all the winds thrown away by conduction oil, thus contribute to conduction oil and flow to the two of sleeve pipe ends.
As preferably, the blade plane of described dispersion oar bends setting clockwise.
So when conduction oil is thrown out of when, it can tangential direction along blade move to greatest extent, thus just further increase dispersion oar and conduction oil is carried out scattered effect to sleeve pipe two ends, it also is able to the direct impact slowing down conduction oil to cylinder body outer wall, it is to avoid its outer wall deforms upon simultaneously.
As preferably, the tube wall of described sleeve pipe is provided with heat insulation foam.
Heat insulation foam can effectively completely cut off the heat exchange of conduction oil and outside air, conduction oil is served the effect of insulation, so conduction oil flowing when can as much as possible by temperature transfer to resin, thus substantially increase the utilization ratio of heat, and it also is able to melt resin quickly and ensures that it is in good fluid state.
As preferably, the inner side tube wall of described sleeve pipe is provided with equally spaced some deflection plates one, and described cylinder centre position between adjacent two deflection plates one is provided with deflection plate two.
Being provided with of deflection plate one and deflection plate two helps conduction oil and carries out sufficient turbulent motion, during turbulent flow, conduction oil self can occur convection current, thus is conducive to the heat of self is effectively transferred to resin such that it is able to effectively keeps resin to be in good flow regime.
As preferably, described deflection plate one and deflection plate two are annular.
The conduction oil of the most same section can occur the effect of baffling, and then further increases the conduction oil efficiency to resin transmission heat.
In sum, this utility model has the advantages that
1. oil inlet pipe arranges the centre position with sleeve pipe, and flowline is arranged at the two ends of sleeve pipe, which reduces the path of unit conduction oil flowing, thus i.e. accelerates resin melting efficiency, resin can be maintained again to be in molten condition.
2. dispersion oar both can disperse conduction oil effectively, promotes that conduction oil flows to the two ends of sleeve pipe, it is also possible to alleviate the conduction oil impact to cylinder body outer wall.
3. deflection plate one and the setting of deflection plate two, can strengthen the turbulent motion of conduction oil, promotes the heat exchange between itself and resin.
Accompanying drawing explanation
Fig. 1 is the structural representation of the heating arrangement of screw extruder；
Fig. 2 is the structural representation of dispersion oar.
In figure, 1, cylinder；2, sleeve pipe；21, heat insulation foam；21, support bar；3, cavity；31, dispersion oar；32, deflection plate one；33, deflection plate two；4, oil inlet pipe；5, flowline.
Detailed description of the invention
Below in conjunction with accompanying drawing 1 to accompanying drawing 2, the present embodiment one to embodiment four is described in further detail.
Embodiment one,
A kind of heating arrangement of screw extruder, including cylinder 1, the outer sheath of cylinder 1 is provided with sleeve pipe 2, is connected to a fixed, simultaneously by support bar 21 between sleeve pipe 2 and cylinder 1, cavity 3 it is also formed with between cylinder 1 and sleeve pipe 2, the lower section of the mid-length position of sleeve pipe 2 is provided with oil inlet pipe 4, and the top at the both ends of sleeve pipe 2 is respectively equipped with flowline 5, and oil inlet pipe 4 is all connected with cavity 3 with flowline 5, and two flowlines 5 converge on same main oil pipe, so facilitate collection and the conveying of conduction oil.
By above-mentioned technical scheme, first conduction oil can enter into cavity 3 from the oil inlet pipe 4 in sleeve pipe 2 centre position, then two end directions of conduction oil phase sleeve pipe 2 respectively flow, thus the flow path distance of conduction oil has been narrowed down to original 1/2, so can effectively avoid resin can have good flow regime all the time during being extruded shearing in cylinder 1, reduce the workload of screw rod, it is also possible to reduce the damaged condition of screw rod, extend the life-span of extruder.
Embodiment two,
A kind of heating arrangement of screw extruder, on the basis of embodiment one, cylinder 1 is provided with dispersion oar 31 towards oil inlet pipe 4, dispersion oar 31 blade setting direction can as the case may be depending on, herein, the blade plane of dispersion oar 31 is to bend setting clockwise, and the radian of bending is π/3.
When conduction oil enters in cavity 3 from oil inlet pipe 4 when, conduction oil will be directly impinging on dispersion oar 31, and now disperses oar 31 to rotate, and is to all the winds thrown away by conduction oil, thus contribute to conduction oil and flow to two ends of sleeve pipe 2.
Additionally, owing to the blade plane of dispersion oar 31 bends setting, the when that conduction oil being thrown out of, it can tangential direction along blade move to greatest extent, thus just further increase dispersion oar 31 and conduction oil is carried out scattered effect to sleeve pipe 2 two ends, it also is able to the direct impact slowing down conduction oil to cylinder 1 outer wall, it is to avoid its outer wall deforms upon simultaneously.
Embodiment three,
A kind of heating arrangement of screw extruder, on the basis of embodiment one, being provided with heat insulation foam 21 in the tube wall of its sleeve pipe 2, the thickness of heat insulation foam 21 is for arranging as the case may be, the thickness of heat insulation foam 21 is 1/3rd of tube wall herein, so can save the use of steel.Simultaneously, heat insulation foam 21 can effectively completely cut off the heat exchange of conduction oil and outside air, conduction oil is served the effect of insulation, so conduction oil flowing when can as much as possible by temperature transfer to resin, thus substantially increase the utilization ratio of heat, and it also is able to melt resin quickly and ensures that it is in good fluid state.
Embodiment four,
A kind of heating arrangement of screw extruder, on the basis of embodiment three, the inner side tube wall of sleeve pipe 2 is provided with equally spaced some deflection plates 1, distance between adjacent two panels deflection plate 1 is 10cm, meanwhile, the cylinder 1 centre position between the most adjacent two deflection plates 1 is additionally provided with deflection plate 2 33.
Being provided with of deflection plate 1 and deflection plate 2 33 helps conduction oil and carries out sufficient turbulent motion, during turbulent flow, conduction oil self can occur convection current, thus is conducive to the heat of self is effectively transferred to resin such that it is able to effectively keeps resin to be in good flow regime.
Deflection plate 1 and deflection plate 2 33 are annular, and the outward flange of deflection plate 1 fixes with the inwall of sleeve pipe 2, and deflection plate 2 33 is set on cylinder 1.
The conduction oil of the most same section can occur the effect of baffling simultaneously, and then further increases the conduction oil efficiency to resin transmission heat.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.
Claims (6)
1. the heating arrangement of a screw extruder, including cylinder (1), the outer sheath of described cylinder (1) is provided with sleeve pipe (2), cavity (3) it is formed with between described cylinder (1) and sleeve pipe (2), it is characterized in that: the lower section of the mid-length position of described sleeve pipe (2) is provided with oil inlet pipe (4), the top at the both ends of described sleeve pipe (2) is respectively equipped with flowline (5), and described oil inlet pipe (4) is all connected with cavity (3) with flowline (5).
The heating arrangement of a kind of screw extruder the most according to claim 1, it is characterised in that: described cylinder (1) is provided with dispersion oar (31) towards oil inlet pipe (4).
The heating arrangement of a kind of screw extruder the most according to claim 2, it is characterised in that: the blade plane of described dispersion oar (31) bends setting clockwise.
The heating arrangement of a kind of screw extruder the most according to claim 1, it is characterised in that: the tube wall of described sleeve pipe (2) is provided with heat insulation foam (21).
The heating arrangement of a kind of screw extruder the most according to claim 4, it is characterized in that: the inner side tube wall of described sleeve pipe (2) is provided with equally spaced some deflection plates one (32), the described cylinder (1) centre position between adjacent two deflection plates one (32) is provided with deflection plate two (33).
The heating arrangement of a kind of screw extruder the most according to claim 5, it is characterised in that: described deflection plate one (32) and deflection plate two (33) are annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620423017.2U CN205631329U (en) | 2016-05-11 | 2016-05-11 | Screw extruder's heating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620423017.2U CN205631329U (en) | 2016-05-11 | 2016-05-11 | Screw extruder's heating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205631329U true CN205631329U (en) | 2016-10-12 |
Family
ID=57057878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620423017.2U Expired - Fee Related CN205631329U (en) | 2016-05-11 | 2016-05-11 | Screw extruder's heating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205631329U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110117066A (en) * | 2019-04-28 | 2019-08-13 | 河海大学 | A kind of air lift intermittent aerobic particle mud cultivation reactor |
-
2016
- 2016-05-11 CN CN201620423017.2U patent/CN205631329U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110117066A (en) * | 2019-04-28 | 2019-08-13 | 河海大学 | A kind of air lift intermittent aerobic particle mud cultivation reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20161012 |