CN201645798U - Low-smoke zero-halogen material lower-stage screw - Google Patents
Low-smoke zero-halogen material lower-stage screw Download PDFInfo
- Publication number
- CN201645798U CN201645798U CN2010201770824U CN201020177082U CN201645798U CN 201645798 U CN201645798 U CN 201645798U CN 2010201770824 U CN2010201770824 U CN 2010201770824U CN 201020177082 U CN201020177082 U CN 201020177082U CN 201645798 U CN201645798 U CN 201645798U
- Authority
- CN
- China
- Prior art keywords
- low
- segment
- thread
- screw
- halogen material
- 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
- 239000000463 material Substances 0.000 title claims abstract description 37
- 239000000779 smoke Substances 0.000 title claims abstract description 34
- 229910052736 halogen Inorganic materials 0.000 title abstract 6
- 238000007906 compression Methods 0.000 claims abstract description 24
- 238000001125 extrusion Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000155 melt Substances 0.000 abstract description 2
- 239000011295 pitch Substances 0.000 abstract 4
- 238000000265 homogenisation Methods 0.000 abstract 3
- 230000002708 enhancing Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000004927 fusion Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
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
- B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
Abstract
The utility model discloses a low-smoke zero-halogen material lower-stage screw comprising a screw body with threads, wherein the threads are divided into a feed segment, a compression segment and a homogenization segment; the pitch of thread on the homogenization segment is smaller than those on the feed segment and the compression segment, and the pitches of thread on the feed segment and the compression segment are equal; the end part of the screw body, close to the feed segment, is provided with a connecting end connected with a motor main shaft; and the connecting end is provided with a mounting hole arranged on the motor main shaft. By the reduced pitch of thread on the homogenization segment, the time for extruding the low-smoke zero-halogen material into a mould from the compression segment is shortened, and the low-smoke zero-halogen material extruded in is more compact, complete and uniform, thus ensuring the product quality; in addition, the pitches of thread on the feed segment and the compression segment are equal, thus increasing the melting and delivering rates and enhancing the quality of a melt body; and the low-smoke zero-halogen material lower-stage screw has the advantages of stable extrusion quantity, high production capability and high extrusion speed, and adapts to conveying of the low-smoke zero-halogen material.
Description
Technical field
The utility model relates to a kind of screw-rod structure, particularly be to be applied to screw-rod structure in the extruder that low-smoke halogen-free material carries.
Background technology
The screw rod of extruder is the strength member in the extruder, is made by the steel alloy of high-strength corrosion-resisting.The range of application of extruding machine and productivity ratio all directly depend on the stability of the temperature homogeneity of the melt that machine is extruded and pressure, extrusion capacity, and these parameters all directly depend on the architectural characteristic energy of screw rod.
Existing screw flight design is divided into three sections, and it refers to that screw rod is made up of feeding section, compression section, three sections screw threads of homogenizing zone, a kind of screw rod that its extrusion relies on the form of screw thread to finish fully, and the pitch between its screw thread be setting equidistantly; And the screw rod of this structure is applied in when carrying out in the extruder low-smoke halogen-free material carried, because pitch equates to cause the low-smoke halogen-free material of fusing to mix inhomogeneous, and low-smoke halogen-free material is more of a specified duration to the time ratio of clamp-oning mould from the compression section, make the material leakiness of clamp-oning, reduced and melted the physique amount, the speed of also slowed down fusion and conveying.
The utility model content
The utility model purpose is to be, has overcome the deficiency on the prior art, and a kind of extrusion capacity is stable, production capacity is high and be adapted to the low-order screw of low-smoke halogen-free material that low-smoke halogen-free material is extruded at a high speed, the speed that has improved fusion and extruded and provide.
To achieve these goals, the utility model is to realize by the following technical solutions:
Low-order screw of low-smoke halogen-free material, comprise the screw rod body, described screw rod body is provided with screw thread, described screw thread is divided into feed zone, compression section and homogenizing zone on the screw rod body, it is characterized in that, thread pitch is less than the thread pitch on described feed zone and the compression section on the described homogenizing zone, thread pitch on the described feed zone equates with thread pitch on the compression section, making the link that connects electric machine main shaft, on described link, be provided with the installing hole that is installed in electric machine main shaft near the screw rod body end of feed zone.
Aforesaid low-order screw of low-smoke halogen-free material, wherein, the diameter of described screw rod body is 150mm.
The utility model is by dwindling the pitch of homogenizing zone, shortened low-smoke halogen-free material from the compression section to the time of clamp-oning mould, make the low-smoke halogen-free material of clamp-oning more closely knit, abundant, even, to guarantee quality of item; And feed zone is equated with the thread pitch of compression section, increased the speed of fusion and conveying, improved and melted the physique amount, it has the advantage that extrusion capacity is stable, production capacity is high and extrude at a high speed, is adapted to the conveying of low-smoke halogen-free material.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the utility model.
With reference to figure 1, the utility model low-order screw of low-smoke halogen-free material comprises screw rod body 10, has made screw thread 14 on described screw rod body 10, and this screw thread 14 can directly process on screw rod body 10.Described screw thread 14 is divided into feed zone 11, compression section 12 and homogenizing zone 13 on screw rod body 10; Described feed zone 11, compression section 12 and homogenizing zone 13 are pressed the material operation on described screw rod body 10 direction is feed zone 11, compression section 12 and homogenizing zone 13 according to this, thread pitch on this homogenizing zone 13 is less than the thread pitch on described feed zone 11 and the compression section 12, shortened low-smoke halogen-free material from the compression section 12 to the time of clamp-oning mould, make the low-smoke halogen-free material of clamp-oning more closely knit, abundant and even, to guarantee quality of item.
Thread pitch on the described feed zone 11 equates with thread pitch on the compression section 12, has increased the speed of fusion and conveying, has improved and has melted the physique amount.Near making the link 20 that connects electric machine main shaft on screw rod body 10 ends of feed zone 11, on described link 20, make the installing hole 21 that is installed in electric machine main shaft, be convenient to the installation of screw rod body 10.
In this enforcement, the diameter of described screw rod body 10 is 150mm, makes low-smoke halogen-free material time of staying in barrel moderate, and fusion is more abundant, even, to guarantee quality of item, is adapted to the use of small-sized extruder.
When the utility model uses, at first, low-smoke halogen-free material advances the feed zone 11 that feed opening enters screw rod body 10 from machine barrel, low-smoke halogen-free material is advanced by the effect promotion low-smoke halogen-free material of screw flight helical angle, when low-smoke halogen-free material contacts the machine tube inner wall of heating, on inwall, form melt film, scraped, enter screw channel by the spiral shell rib of screw rod.
Secondly, the low-smoke halogen-free material of fusion enters compression section 12 extrusion of the air between the low-smoke halogen-free material is fed back into charge door, and with the material compacting.
At last, the low-smoke halogen-free material of fusion is clamp-oned in the mould through homogenizing zone 13 homogenizing.
The utility model is by dwindling the pitch of homogenizing zone 13 on the screw rod body 10, shortened low-smoke halogen-free material from the compression section 12 to the time of clamp-oning mould, make the low-smoke halogen-free material of clamp-oning more closely knit, abundant, even, to guarantee quality of item; And the thread pitch of feed zone 11 with compression section 12 equated, improved the speed of fusion and conveying, improved and melted the physique amount, it has the advantage that extrusion capacity is stable, production capacity is high and extrude at a high speed, is adapted in the small-sized extruder of low-smoke halogen-free material conveying.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. low-order screw of low-smoke halogen-free material, comprise the screw rod body, described screw rod body is provided with screw thread, described screw thread is divided into feed zone, compression section and homogenizing zone on the screw rod body, it is characterized in that, thread pitch is less than the thread pitch on described feed zone and the compression section on the described homogenizing zone, thread pitch on the described feed zone equates with thread pitch on the compression section, making the link that connects electric machine main shaft, on described link, be provided with the installing hole that is installed in electric machine main shaft near the screw rod body end of feed zone.
2. low-order screw of low-smoke halogen-free material according to claim 1 is characterized in that, the diameter of described screw rod body is 150mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201770824U CN201645798U (en) | 2010-04-27 | 2010-04-27 | Low-smoke zero-halogen material lower-stage screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201770824U CN201645798U (en) | 2010-04-27 | 2010-04-27 | Low-smoke zero-halogen material lower-stage screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201645798U true CN201645798U (en) | 2010-11-24 |
Family
ID=43111016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201770824U Expired - Fee Related CN201645798U (en) | 2010-04-27 | 2010-04-27 | Low-smoke zero-halogen material lower-stage screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201645798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890801A (en) * | 2010-04-27 | 2010-11-24 | 昆山科信橡塑机械有限公司 | Low-order screw of low-smoke halogen-free material |
-
2010
- 2010-04-27 CN CN2010201770824U patent/CN201645798U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890801A (en) * | 2010-04-27 | 2010-11-24 | 昆山科信橡塑机械有限公司 | Low-order screw of low-smoke halogen-free material |
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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: 20101124 Termination date: 20130427 |