CN201745154U - Special screw rod for internal and external shielding cable materials - Google Patents
Special screw rod for internal and external shielding cable materials Download PDFInfo
- Publication number
- CN201745154U CN201745154U CN2010202874252U CN201020287425U CN201745154U CN 201745154 U CN201745154 U CN 201745154U CN 2010202874252 U CN2010202874252 U CN 2010202874252U CN 201020287425 U CN201020287425 U CN 201020287425U CN 201745154 U CN201745154 U CN 201745154U
- Authority
- CN
- China
- Prior art keywords
- section
- screw rod
- compression section
- zone
- material inlet
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 title claims abstract description 37
- 230000006835 compression Effects 0.000 claims abstract description 30
- 238000007906 compression Methods 0.000 claims abstract description 30
- 125000003003 spiro group Chemical group 0.000 claims description 15
- 230000007423 decrease Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 238000000265 homogenisation Methods 0.000 abstract 8
- 239000011295 pitch Substances 0.000 abstract 1
- 230000004927 fusion Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a special screw rod for internal and external shielding cable materials, which comprises a material inlet section, a compression section and a homogenization section, wherein the homogenization section is arranged at the front end of the screw rod, the end part of the material inlet section is also provided with a thread section for preventing materials from flowing back, the screw rod diameter of the compression section is gradually increased in the axial direction of the screw rod, the threaded groove depth of the compression section is gradually decreased in the axial direction of the screw rod, the screw rod diameter of the material inlet section is smaller than the screw rod diameter of the homogenization section, thread pitches of screw threads on the material inlet section, the compression section and the homogenization section are identical, the screw rod length of the homogenization section is smaller than that of the homogenization section, and the screw rod length of the compression section is smaller than that of the material inlet section. The utility model has the advantages that the fused internal and external shielding cable materials are completely compressed and are compact and uniform while being conveyed, the product quality is ensured, in addition, the screw rod diameter of the homogenization section is greater than that of the material inlet section, the material inlet of the internal and external shielding cable materials is stable, the output of the homogenization section is balanced, the meltdown and extrusion rate is improved, and the production efficiency of enterprises is improved.
Description
Technical field
The utility model relates to a kind of screw-rod structure, 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 made by the steel alloy of high-strength corrosion-resisting, and by its rotation, the plastics in the barrel just can be moved, and obtain the heat (frictional heat) of supercharging and part.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.
The geometric parameter of screw rod as 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 the compression end screw diameter equates to cause the external shield CABLE MATERIALS of fusing to mix inhomogeneous, the compression leakiness, charging instability, the output imbalance of homogenizing zone, reduced and 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.
The utility model content
For having overcome the deficiency on the prior art, the utility model purpose is 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, the technical solution of the utility model is: 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 described compression section increases progressively gradually along screw axial, the spiral groove depth of described compression section successively decreases gradually along screw axial, the screw diameter of described feed zone is less than the screw diameter of homogenizing zone, described feed zone, thread pitch on compression section and the homogenizing zone equates, the spiro rod length of described homogenizing zone is less than the spiro rod length of compression section, and the spiro rod length of described 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 described 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 described 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 described feed zone is 147mm.
The utility model is by 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 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 is to be 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 by 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 by 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 for thread pitch, the compression section 4 of screw diameter gradual change, the screw diameter of this compression section 4 is promptly increased progressively by the direction of feed zone 3 to homogenizing zone 5 gradually along screw axial, and its maximum gauge equates 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, 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 feed zone 3 to the direction of homogenizing zone 5 gradually along screw axial, 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 utility model in use, from the screw front end direction, screw rod is rotated counterclockwise under the drive of power, material is fed forward under the frictional force effect along screw channel, its screw-rod structure is simple, easy to process.
Based on above-mentioned, the utility model is by 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 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 (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 described compression section increases progressively gradually along screw axial, the spiral groove depth of described compression section successively decreases gradually along screw axial, the screw diameter of described feed zone is less than the screw diameter of homogenizing zone, described feed zone, thread pitch on compression section and the homogenizing zone equates, the spiro rod length of described homogenizing zone is less than the spiro rod length of compression section, and the spiro rod length of described 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 described 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 described 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 described feed zone is 147mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202874252U CN201745154U (en) | 2010-08-10 | 2010-08-10 | Special screw rod for internal and external shielding cable materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202874252U CN201745154U (en) | 2010-08-10 | 2010-08-10 | Special screw rod for internal and external shielding cable materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201745154U true CN201745154U (en) | 2011-02-16 |
Family
ID=43579827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202874252U Expired - Lifetime CN201745154U (en) | 2010-08-10 | 2010-08-10 | Special screw rod for internal and external shielding cable materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201745154U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920551A (en) * | 2010-08-10 | 2010-12-22 | 昆山科信橡塑机械有限公司 | Bolt special for internally and externally shielded cable material |
| CN102886889A (en) * | 2012-11-12 | 2013-01-23 | 河北华通线缆集团有限公司 | Screw of rubber extruding machine |
| CN115635667A (en) * | 2022-11-03 | 2023-01-24 | 天水铁路电缆有限责任公司 | An extruder screw for producing wire and cable sheathing |
-
2010
- 2010-08-10 CN CN2010202874252U patent/CN201745154U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920551A (en) * | 2010-08-10 | 2010-12-22 | 昆山科信橡塑机械有限公司 | Bolt special for internally and externally shielded cable material |
| CN101920551B (en) * | 2010-08-10 | 2012-11-21 | 昆山科信橡塑机械有限公司 | Bolt special for internally and externally shielded cable material |
| CN102886889A (en) * | 2012-11-12 | 2013-01-23 | 河北华通线缆集团有限公司 | Screw of rubber extruding machine |
| CN115635667A (en) * | 2022-11-03 | 2023-01-24 | 天水铁路电缆有限责任公司 | An extruder screw for producing wire and cable sheathing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110216 Effective date of abandoning: 20130227 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110216 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |