CN101920551B - Bolt special for internally and externally shielded cable material - Google Patents
Bolt special for internally and externally shielded cable material Download PDFInfo
- Publication number
- CN101920551B CN101920551B CN2010102496732A CN201010249673A CN101920551B CN 101920551 B CN101920551 B CN 101920551B CN 2010102496732 A CN2010102496732 A CN 2010102496732A CN 201010249673 A CN201010249673 A CN 201010249673A CN 101920551 B CN101920551 B CN 101920551B
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- CN
- China
- Prior art keywords
- section
- bolt
- internally
- compression section
- shielded cable
- 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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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a bolt special for an internally and externally shielded cable material, comprising a feeding section and a compression section as well as a homogenization section arranged at the front end of the bolt. A threaded section for preventing materials from refluxing is also arranged at the end part of the feeding section, the bolt diameter of the compression section is gradually increased along the axial direction of the bolt, the bolt groove depth of the compression section is gradually reduced along the axial direction of the bolt, the bolt diameter of the feeding section is smaller than that of the homogenization section, the feeding section, the compression section and the homogenization section have identical thread pitch, the bolt length of the homogenization section is smaller than that of of the compression section, and the bolt length of the compression section is smaller than that of the feeding section. The bolt special for the internally and externally shielded cable material ensures that the internally and externally shielded cable material is fully, tightly and evenly compressed during the conveying and ensures the product quality; and the bolt diameter of the homogenization section is larger than that of the feeding section so that the internally and externally shielded cable material is stably fed, the homogenization section outputs in balance, the melting and extruding speeds are increased, and the production efficiency of enterprises are increased.
Description
Technical field
What the present invention relates to is a kind of screw-rod structure, and in particular a kind of extruder is used for the bolt special structure of internally and externally shielded cable material.
Background technology
The screw rod of extruder is the strength member in the extruder, is processed by the steel alloy of high-strength corrosion-resisting, and through its rotation, the plastics in the barrel just can be moved, and obtains the heat (frictional heat) of supercharging and part.The range of application of extruding machine and productivity ratio all directly depend on temperature homogeneity and the pressure of the melt that machine is extruded, the stability of extrusion capacity, and these parameters all directly depend on the architectural characteristic ability of screw rod.
The geometric parameter of screw rod like diameter, draw ratio, each segment length ratio and spiral groove depth etc., all has great influence to the operating characteristic of screw rod.That the situation that existing screw rod turns round on screw rod according to plastics can be divided into is reinforced, compress and measure three sections, and this Universal screw rod is sometimes referred to as master screw or metering type screw, and it is that the angle of rifling is the screw rod that 17.6 °, pitch equal diameter.
And the screw rod of said structure is applied in when carrying out in the extruder internally and externally shielded cable material carried, because that the compression end screw diameter equates to cause the external shield CABLE MATERIALS of fusing to mix is inhomogeneous, and the compression leakiness; Charging is unstable, and the output of homogenizing zone is uneven, has reduced and has melted the physique amount; Also the slowed down speed of fusion and conveying influences the production efficiency of enterprise, in addition; Simultaneously be connected with machine barrel to be easy to generate material and backflow its poor sealing performance at thread head.
Summary of the invention
For having overcome the deficiency on the prior art; The present invention seeks to be to provide a kind of material that prevents to backflow; Simple in structure, easy to process, charging is stablized and is compressed bolt special for internally and externally shielded cable material completely, and its homogenizing zone is exported balance, the speed that has improved fusion and extruded.
To achieve these goals; Technical scheme of the present invention is: bolt special for internally and externally shielded cable material, comprise feed zone and compression section, and it is characterized in that; It also comprises the homogenizing zone that is arranged on screw front end; Also be provided with in described feed zone end and be used to the thread segment that prevents that material from backflowing, the screw diameter of said compression section increases progressively along screw axial gradually, and the spiral groove depth of said compression section successively decreases along screw axial gradually; The screw diameter of said feed zone is less than the screw diameter of homogenizing zone; Thread pitch on said feed zone, compression section and the homogenizing zone equates that the spiro rod length of said homogenizing zone is less than the spiro rod length of compression section, and the spiro rod length of said compression section is less than the spiro rod length of feed zone.
Aforesaid bolt special for internally and externally shielded cable material, wherein, the end of said thread segment also is equipped with the link that connects external motive device, and this link is provided with installing hole.
Aforesaid bolt special for internally and externally shielded cable material, wherein, the width of thread on said feed zone, compression section and the homogenizing zone is 14mm.
Aforesaid bolt special for internally and externally shielded cable material, wherein, the thread pitch of said feed zone is 147mm.
The present invention is through the compression section that uniform pitch, screw diameter increase progressively, and the internally and externally shielded cable material that makes fusion compresses fully, closely knit, even when carrying, and has guaranteed quality of item; And the homogenizing zone screw diameter makes the internally and externally shielded cable material charging stable greater than the screw diameter of feed zone, homogenizing zone output balance, and the speed that has improved fusion and extruded, it has advantage simple in structure, easy to process, has increased the production efficiency of enterprise.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with the specific embodiment, further set forth the present invention.
With reference to figure 1, the present invention is used to extrude, and its special use is carried internally and externally shielded cable material; It comprises feed zone 3, compression section 4 and homogenizing zone 5, also is provided with in feed zone 3 ends to be used to the thread segment 2 that prevents that material from backflowing, and this screw rod is connected with extruder barrel through thread segment 2, makes in its barrel that is fixed on extruder.Also be provided with the link 1 that connects external motive device in the end of thread segment 2, in extrusion device, the general motor that adopts of these power set, the installing hole 11 that the main shaft of this motor is made through link 1 connects firmly with screw rod, makes the rotation of driven by motor screw rod.
In the present embodiment, the screw rod middle part equates the compression section 4 of screw diameter gradual change for thread pitch; The screw diameter of this compression section 4 is promptly increased progressively by the direction of feed zone 3 to homogenizing zone 5 along screw axial gradually, and its maximum gauge equates that with the screw diameter of homogenizing zone 5 minimum diameter is the screw diameter of feed zone; Thereby the screw diameter of feed zone 3 has been convenient to the conveying of internally and externally shielded cable material less than the screw diameter of homogenizing zone 5; Make its charging stable, the output balance.
The front end of screw rod be uniform pitch, etc. dark homogenizing zone 5; The thread pitch of this homogenizing zone 5 equates with the thread pitch of compression section 4 and feed zone 3; Its thread pitch is 147mm, and the width of thread is 14mm, and; The spiro rod length of homogenizing zone 5 is less than the spiro rod length of compression section 4, and the spiro rod length of compression section 4 is less than the spiro rod length of feed zone 3.
In the present embodiment, the spiro rod length of feed zone 3 is 950mm, and spiral groove depth is 37mm; The spiro rod length of compression section 4 is 767mm; Spiral groove depth is promptly successively decreased by the direction of feed zone 3 to homogenizing zone 5 along screw axial gradually, and its spiral groove depth is decremented to the spiral groove depth of homogenizing zone, and this homogenizing zone 5 such as is at dark spiral groove depth; Its spiral groove depth is 13.5mm, and its spiro rod length is 450mm.
The present invention sees from the screw front end direction that in use screw rod is rotated counterclockwise under the drive of power, material is fed forward under the frictional force effect along screw channel, and its screw-rod structure is simple, easy to process.
Based on above-mentioned, the present invention is through the compression section 4 that uniform pitch, screw diameter increase progressively, and the internally and externally shielded cable material that makes fusion compresses fully, closely knit, even when carrying, and has guaranteed quality of item; And the homogenizing zone screw diameter is greater than the screw diameter of feed zone, makes the internally and externally shielded cable material charging stable, homogenizing zone output balance, and the speed that has improved fusion and extruded has increased the production efficiency of enterprise.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (4)
1. bolt special for internally and externally shielded cable material; Comprise feed zone and compression section; It is characterized in that it also comprises the homogenizing zone that is arranged on screw front end, also be provided with in described feed zone end and be used to the thread segment that prevents that material from backflowing; The screw diameter of said compression section is promptly increased progressively by the direction of feed zone to homogenizing zone along screw axial gradually; The spiral groove depth of said compression section is promptly successively decreased by the direction of feed zone to homogenizing zone along screw axial gradually, and the screw diameter of said feed zone is less than the screw diameter of homogenizing zone, and the thread pitch on said feed zone, compression section and the homogenizing zone equates; The spiro rod length of said homogenizing zone is less than the spiro rod length of compression section, and the spiro rod length of said compression section is less than the spiro rod length of feed zone.
2. bolt special for internally and externally shielded cable material according to claim 1 is characterized in that, the end of said thread segment also is equipped with the link that connects external motive device, and this link is provided with installing hole.
3. bolt special for internally and externally shielded cable material according to claim 1 and 2 is characterized in that the width of thread on said feed zone, compression section and the homogenizing zone is 14mm.
4. bolt special for internally and externally shielded cable material according to claim 1 is characterized in that, the thread pitch of said feed zone is 147mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102496732A CN101920551B (en) | 2010-08-10 | 2010-08-10 | Bolt special for internally and externally shielded cable material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102496732A CN101920551B (en) | 2010-08-10 | 2010-08-10 | Bolt special for internally and externally shielded cable material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101920551A CN101920551A (en) | 2010-12-22 |
| CN101920551B true CN101920551B (en) | 2012-11-21 |
Family
ID=43335886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102496732A Expired - Fee Related CN101920551B (en) | 2010-08-10 | 2010-08-10 | Bolt special for internally and externally shielded cable material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101920551B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601886B (en) * | 2012-04-24 | 2015-01-21 | 昆山科信橡塑机械有限公司 | Rich mineral paper masterbatch extruding granulator set |
| CN102744861B (en) * | 2012-07-30 | 2014-08-06 | 安徽普瑞斯塑料机械制造有限公司 | Special screw for extruding electro-conductive plastic cable material |
| CN105729762B (en) * | 2016-04-14 | 2018-08-28 | 中山市富邦机械有限公司 | The hollow forming equipment that low energy consumption low temperature squeezes out |
| CN106564174B (en) * | 2016-09-30 | 2019-06-28 | 营口康辉石化有限公司 | A kind of extruder screw |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201235600Y (en) * | 2008-05-04 | 2009-05-13 | 施经东 | Screw special for oxygen barrier EVOH extrusion |
| CN201389961Y (en) * | 2009-04-24 | 2010-01-27 | 张建群 | Primary plastic extruding molding machine for continuous production of foaming insulation boards |
| CN201745154U (en) * | 2010-08-10 | 2011-02-16 | 昆山科信橡塑机械有限公司 | Special screw rod for internal and external shielding cable materials |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009096150A (en) * | 2007-10-19 | 2009-05-07 | Yazaki Corp | Resin molding machine |
-
2010
- 2010-08-10 CN CN2010102496732A patent/CN101920551B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201235600Y (en) * | 2008-05-04 | 2009-05-13 | 施经东 | Screw special for oxygen barrier EVOH extrusion |
| CN201389961Y (en) * | 2009-04-24 | 2010-01-27 | 张建群 | Primary plastic extruding molding machine for continuous production of foaming insulation boards |
| CN201745154U (en) * | 2010-08-10 | 2011-02-16 | 昆山科信橡塑机械有限公司 | Special screw rod for internal and external shielding cable materials |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2009-96150A 2009.05.07 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101920551A (en) | 2010-12-22 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20130810 |