CN107901381A - Heat pipe-type temperature adjustment screw rod - Google Patents
Heat pipe-type temperature adjustment screw rod Download PDFInfo
- Publication number
- CN107901381A CN107901381A CN201711275701.6A CN201711275701A CN107901381A CN 107901381 A CN107901381 A CN 107901381A CN 201711275701 A CN201711275701 A CN 201711275701A CN 107901381 A CN107901381 A CN 107901381A
- Authority
- CN
- China
- Prior art keywords
- screw rod
- heat pipe
- heat
- cooling water
- screw body
- 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.)
- Pending
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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/84—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders by heating or cooling the feeding screws
- B29C48/845—Heating
-
- 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
- B29C48/51—Screws with internal flow passages, e.g. for molten material
-
- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/82—Cooling
-
- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/84—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders by heating or cooling the feeding screws
- B29C48/85—Cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention discloses a kind of heat pipe-type temperature adjustment screw rod, belong to plastic extrusion facility field, solve in the prior art plastics occurs in machine barrel flow back mixing cause temperature inequality, radiate bad technical problem, the screw rod includes screw body, mixing refining head, screw rod shank, in this case, by setting cavity jointly inside screw body and screw rod shank, and it is inserted into cooling water pipe in this cavity, heat pipe is set inside screw body, and heat conduction medium is filled in this heat pipe, so that even if the plastics that mixing occurs in machine barrel are subject to screw rod rotary action to overheat, these heats can pass to cooling water by heat conduction medium, and extrusion screw rod is endlessly taken out of by cooling water, therefore, compared with the prior art, the heat pipe-type temperature adjustment screw rod of this case has the advantages that cooling effect is more preferable.
Description
Technical field
The present invention relates to plastic extrusion facility field, more particularly to a kind of extrusion screw rod for being used to process thermal sensitivity plastics.
Background technology
In the prior art, extruder generally includes machine barrel, the extrusion screw rod being rotatably arranged in machine barrel, is passed with extrusion screw rod
The driving device of dynamic connection, the structure of the extrusion screw rod of plastic extruder are generally divided into three sections, including feed zone, binder section, squeeze
Go out section, extrusion screw rod during the work time paragraph by paragraph heats plastics, until by plastic extrusion, partly plastic melt due to by
Pressure effect to extrusion screw rod easily flows back at the extrusion port of machine barrel, causes the plastic melt in machine barrel and part to be returned
Mixing occurs for the plastic melt of stream, so as to cause the non-uniform temperature of whole plastic melt, what it is when extrusion screw rod processing is temperature-sensitive
Property plastics when, " non-uniform temperature " that plastic melt after this mixing occurs is particularly evident, for example, since plastic melt is in machine
Excessive heat is produced with the interior wall friction of extrusion screw rod and machine barrel in cylinder, if these heats cannot be discharged in time, part is moulded
Material will even decompose, and then influence the quality of plastic extruder fabricated product.
The content of the invention
In order to solve the above-mentioned technical problem, the object of the present invention is to provide a kind of more preferable heat pipe-type temperature tune of cooling effect
Save screw rod.
In order to realize the purpose of foregoing invention, the present invention adopts the following technical scheme that：
A kind of heat pipe-type temperature adjustment screw rod, including screw body, the mixing for being fixed at the screw body front end
Head, the screw rod shank for being connected to the screw body rearward end, the screw body, screw rod shank are axially inside common
Cavity is offered, cooling water pipe, the outer wall of the cooling water pipe and the screw body, spiral shell are provided with the cavity
Outlet passage is provided between the inner wall in rod handle portion jointly, rotates and is provided with and the cooling water pipe on the screw rod shank
The swivel joint being fixedly connected, the swivel joint have and the water inlet being connected inside the cooling water pipe and institute
The water outlet that the outlet passage stated is connected, is additionally provided with multiple heat pipes axially extended, the heat in the screw body
Pipe is positioned at the outside of the cavity, and multiple heat pipes are uniformly distributed in the circumferential direction of the screw body, each described
It is vacuum state in heat pipe, and is filled with heat conduction medium.
In above-mentioned technical proposal, it is preferred that the heat conduction medium in the heat pipe accounts for the 15~20% of heat pipe volume.
In above-mentioned technical proposal, it is preferred that a diameter of 5~10mm of the heat pipe, long 250~500mm.
In above-mentioned technical proposal, it is preferred that the mixing refining head is threaded in the front end of the screw body.
In above-mentioned technical proposal, it is preferred that the screw body includes feed zone, binder section, extruding zone, the pressure
The outside diameter of material section becomes larger vertically, and the maximum of the outside diameter of the binder section is less than the outside diameter of the extruding zone, institute
It is more than the outside diameter of the feed zone at the minimum of the outside diameter for the binder section stated.
In above-mentioned technical proposal, it is preferred that multiple heat pipes are respectively positioned on the extruding zone.
In above-mentioned technical proposal, it is preferred that the heat conduction medium is water or conduction oil or alcohol.
In above-mentioned technical proposal, it is preferred that the mixing refining head has multiple protrusions circumferentially, multiple described
Protrusion is uniformly distributed vertically.
The present invention obtains following beneficial effect compared with prior art：In this case, by screw body and screw rod shank
Internal common setting cavity, and cooling water pipe is inserted into this cavity, heat pipe is set inside screw body, and in this heat pipe
Fill heat conduction medium so that even if the plastics that mixing occurs in machine barrel are subject to screw rod rotary action to overheat, these heat energy
Cooling water is enough passed to by heat conduction medium, and extrusion screw rod is endlessly taken out of by cooling water, therefore, compared to existing
Technology, the heat pipe-type temperature adjustment screw rod of this case have the advantages that cooling effect is more preferable.
Brief description of the drawings
Attached drawing 1 is the schematic front view of the heat pipe-type temperature adjustment screw rod of the present invention；
Attached drawing 2 is the longitudinally cutting schematic diagram of attached drawing 1；
Attached drawing 3 is the close-up schematic view of attached drawing 2；
Wherein：100th, heat pipe-type temperature adjustment screw rod；1st, screw body；11st, cavity；111st, feed zone；112nd, binder section；113、
Extruding zone；12nd, cooling water pipe；13rd, outlet passage；14th, heat pipe；2nd, mixing refining head；21st, it is raised；3rd, screw rod shank；4th, rotation connects
Head；41st, water inlet；42nd, water outlet.
Embodiment
To describe technology contents, construction feature, institute's reached purpose and effect of invention in detail, below in conjunction with embodiment simultaneously
Attached drawing is coordinated to be described in detail.Wherein, the "front", "rear" being previously mentioned in the present embodiment is respectively the left side shown in attached drawing 1
And right direction, " axial direction " refer to the length direction along mixing refining head/screw body/screw rod shank shown in attached drawing 1, " longitudinal direction "
Refer to the direction of the vertically cutting shown in attached drawing 1, " circumferential direction " refers to the circumference along mixing refining head/screw body/screw rod shank
Direction.
As shown in Figure 1, the schematic front view of heat pipe-type temperature adjustment screw rod is shown as, the heat pipe-type temperature adjustment screw rod
100 include screw body 1, the mixing refining head 2 installed in 1 front end of screw body, the screw shank for being connected to 1 rearward end of screw body
Portion 3 and the swivel joint 4 being rotatably arranged on screw rod shank 3.Screw body 1 includes feed zone 111, binder section 112 and squeezes
Go out section 113, the outside diameter of binder section 112 becomes larger vertically, and the maximum of the outside diameter of binder section 112 is less than extruding zone 112
Outside diameter, the minimum place of the outside diameter of binder section 112 more than feed zone 111 outside diameter, this is because machine barrel of the plastics into extruder
After interior, what is contacted at first is feed zone 111, is then moved to binder section 112, and enhancing and machine barrel and spiral shell at binder section 112
The CONTACT WITH FRICTION of bar, improves melting effect, is finally moved to extruding zone 113 and prepares extrusion.Screw rod shank 3 is used for and driving device
Mutually it is sequentially connected, when adjusting screw rod rotates in the machine barrel of extruder, swivel joint 4 is opposite remains stationary.
As shown in Figure 2, the longitudinally cutting schematic diagram of attached drawing 1 is shown as, mixing refining head 2 is threadedly coupled and is arranged on screw body
1 front end, screw body 1, screw rod shank 3 are axially inside provided with cavity 11, cooling water are provided with cavity 11 jointly
Pipe 12, outlet passage 13 is provided between the outer wall and screw body 1 of cooling water pipe 12, the inner wall of screw rod shank 3 jointly, cooling
Water pipe 12 is fixedly connected with swivel joint 4, and therefore, when adjusting screw rod 100 rotates in machine barrel, cooling water pipe 12 keeps relatively quiet
Only state, swivel joint 4 have and the water inlet 41 being connected inside cooling water pipe 12, the water outlet being connected with outlet passage 13
Mouth 42, the inside of screw body 1, which has, to be axially extended and is in multiple heat pipes 14 in the outside of cavity 11, each heat pipe 14
Vacuum state, and it is filled with heat conduction medium.Wherein, heat conduction medium can be water, oil, alcohol or other be used for cool down
Liquid, in order to enable the heat conductivility of screw body 1 is more preferable, multiple heat pipes 14 are uniformly distributed in the circumferential direction of screw body 1,
And the heat conduction medium in heat pipe 14 accounts for the 15~20% of 14 volume of heat pipe, preferably 20%；The length of heat pipe 14 is 250~500mm, excellent
Select 500 mm, a diameter of 5~10mm, preferably 10 mm.Therefore, after cooling water pipe 12 is passed through cooling water, due to being returned in extruder barrel
With original plastic melt mixing occurs for the plastic melt of stream, and the plastic melt of mixing is adjusted in addition because uneven heating is even
Save the turning effort of screw rod and the rubbing action of machine tube inner wall and produce excessive heat, the heat conduction medium in heat pipe 14 is more by this
Remaining heat absorption, then this unnecessary heat transfer is finally cooled in water pipe 12 to cooling water pipe 12, the unnecessary heat
Cooling water constantly absorb until taking the outside of adjusting screw rod 100 out of, this adjusting screw rod for utilizing " heat pipe principle " manufacture, dissipates
Thermal effect is more preferable；Therefore, when thermal sensitivity plastics are processed in the extruder equipped with such a screw rod, even if the plastic melt of reflux
Mixing, the temperature that can also be kept constant so that plastic raw materials go out machine barrel occurs with original plastic melt in machine barrel
Be not in the larger temperature difference at mouthful, ensure that quality of the plastics in extrusion.
It is shown as the close-up schematic view of attached drawing 2 as shown in Figure 3, mixing refining head 2 has circumferentially multiple convex
Play 21, multiple raised 21 to be uniformly distributed vertically, therefore, mixing refining head 2 can play the role of stirring material so that material is in machine
Melting is more uniform in cylinder.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification that spirit is made, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of heat pipe-type temperature adjustment screw rod, including screw body（1）, be fixed at the screw body（1）Front end
The mixing refining head in portion（2）, be connected to the screw body（1）The screw rod shank of rearward end（3）, it is characterised in that：The spiral shell
Bar body（1）, screw rod shank（3）Cavity is axially inside offered jointly（11）, the cavity（11）Inside it is provided with cooling
Water pipe（12）, the cooling water pipe（12）Outer wall and the screw body（1）, screw rod shank（3）Inner wall between altogether
It is same to be provided with outlet passage（13）, the screw rod shank（3）Upper rotation is provided with and the cooling water pipe（12）It is fixed to connect
The swivel joint connect（4）, the swivel joint（4）With with the cooling water pipe（12）The water inlet that inside is connected
（41）And the outlet passage（13）The water outlet being connected（42）, the screw body（1）Inside it is additionally provided with multiple edges
Axially extending heat pipe（14）, the heat pipe（14）Positioned at the cavity（11）Outside, and multiple heat pipes（14）Described
Screw body（1）Circumferential direction on be uniformly distributed, each heat pipe（14）It is inside vacuum state, and is filled with heat conduction matchmaker
It is situated between.
2. heat pipe-type adjusting screw rod according to claim 1, it is characterised in that：The heat pipe（14）Interior heat conduction medium
Account for heat pipe（14）The 15~20% of volume.
3. heat pipe-type adjusting screw rod according to claim 2, it is characterised in that：A diameter of 5~10mm of the heat pipe,
Long 250~500mm.
4. heat pipe-type adjusting screw rod according to claim 1, it is characterised in that：The mixing refining head（2）It is threaded in
The screw body（1）Front end.
5. heat pipe-type adjusting screw rod according to claim 1, it is characterised in that：The screw body（1）Including charging
Section（111）, binder section（112）, extruding zone（113）, the binder section（112）Outside diameter become larger vertically, it is described
Binder section（112）The maximum of outside diameter be less than the extruding zone（113）Outside diameter, the binder section（112）Outside diameter
Minimum at be more than the feed zone（111）Outside diameter.
6. heat pipe-type adjusting screw rod according to claim 5, it is characterised in that：Multiple heat pipes（14）It is respectively positioned on institute
The extruding zone stated（113）.
7. heat pipe-type adjusting screw rod according to claim 1, it is characterised in that：The heat conduction medium is water or conduction oil
Or alcohol.
8. heat pipe-type adjusting screw rod according to claim 1, it is characterised in that：The mixing refining head（2）With circumferentially
Multiple protrusions of extension（21）, multiple protrusions（21）It is uniformly distributed vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711275701.6A CN107901381A (en) | 2017-12-06 | 2017-12-06 | Heat pipe-type temperature adjustment screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711275701.6A CN107901381A (en) | 2017-12-06 | 2017-12-06 | Heat pipe-type temperature adjustment screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107901381A true CN107901381A (en) | 2018-04-13 |
Family
ID=61854614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711275701.6A Pending CN107901381A (en) | 2017-12-06 | 2017-12-06 | Heat pipe-type temperature adjustment screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107901381A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109228115A (en) * | 2018-10-11 | 2019-01-18 | 佛山市顺德区印美印刷有限公司 | A kind of IMD decorative panel process units |
| CN110561169A (en) * | 2019-09-02 | 2019-12-13 | 上海理工大学 | Novel heat pipe ball screw |
| CN111730845A (en) * | 2019-03-25 | 2020-10-02 | 上海贝阳塑料机械科技有限公司 | Special screw rod of PVC thermal contraction inflation film manufacturing machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3139024A1 (en) * | 1980-10-03 | 1982-05-13 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Screw for screw extruders or injection moulding machines |
| CN202271517U (en) * | 2011-09-29 | 2012-06-13 | 江苏亨通电力电缆有限公司 | Screw stem cooling device on cross-linking extrusion equipment |
| CN204322483U (en) * | 2014-10-13 | 2015-05-13 | 软控股份有限公司 | Screw rod for rubber extruder |
| JP2017124521A (en) * | 2016-01-13 | 2017-07-20 | トヨタ自動車株式会社 | Chill roll |
-
2017
- 2017-12-06 CN CN201711275701.6A patent/CN107901381A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3139024A1 (en) * | 1980-10-03 | 1982-05-13 | Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid | Screw for screw extruders or injection moulding machines |
| CN202271517U (en) * | 2011-09-29 | 2012-06-13 | 江苏亨通电力电缆有限公司 | Screw stem cooling device on cross-linking extrusion equipment |
| CN204322483U (en) * | 2014-10-13 | 2015-05-13 | 软控股份有限公司 | Screw rod for rubber extruder |
| JP2017124521A (en) * | 2016-01-13 | 2017-07-20 | トヨタ自動車株式会社 | Chill roll |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109228115A (en) * | 2018-10-11 | 2019-01-18 | 佛山市顺德区印美印刷有限公司 | A kind of IMD decorative panel process units |
| CN111730845A (en) * | 2019-03-25 | 2020-10-02 | 上海贝阳塑料机械科技有限公司 | Special screw rod of PVC thermal contraction inflation film manufacturing machine |
| CN110561169A (en) * | 2019-09-02 | 2019-12-13 | 上海理工大学 | Novel heat pipe ball screw |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210319 Address after: 215400 building 4, 18 Dong'an Road, Chengxiang Town, Taicang City, Suzhou City, Jiangsu Province Applicant after: Suzhou Jinwei chemical fiber equipment Co.,Ltd. Address before: 215400 building 4, Donglin Lianfa Industrial Park, guojiajing Zhiyi Road, Chengxiang Industrial Park, Taicang City, Suzhou City, Jiangsu Province Applicant before: SUZHOU JWELL POLY ENGINEERING Co.,Ltd. |
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| TA01 | Transfer of patent application right |