CN103317701A - Urgent compression screw rod for ultrathin coaxial line extruder - Google Patents
Urgent compression screw rod for ultrathin coaxial line extruder Download PDFInfo
- Publication number
- CN103317701A CN103317701A CN2013102631282A CN201310263128A CN103317701A CN 103317701 A CN103317701 A CN 103317701A CN 2013102631282 A CN2013102631282 A CN 2013102631282A CN 201310263128 A CN201310263128 A CN 201310263128A CN 103317701 A CN103317701 A CN 103317701A
- Authority
- CN
- China
- Prior art keywords
- screw rod
- rod body
- compression
- length
- section
- 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
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
-
- 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
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides an urgent compression screw rod for an ultrathin coaxial line extruder. The urgent compression screw rod comprises a screw rod body, wherein the screw rod body is provided with screw grooves with equal thread pitches; the screw rod body is sequentially provided with a material supplying section, a compression section and a metering section along the direction of an axis; the length of the compression section is less than or equal to the width of the screw grooves of the screw rod body. Compared with the prior art, the urgent compression screw rod for the ultrathin coaxial line extruder has the advantages that the length of the compression section is greatly reduced, so as to form an urgent compression form; under the condition that the length of the screw rod body is limited, the length of the material supplying section is guaranteed and materials can be sufficiently fused; the urgent compression of the compression section guarantees that the materials can be smoothly discharged, so that the line diameter of an ultrathin coaxial line in a production process is stable.
Description
Technical field
The present invention relates to a kind of plastic molding equipment screw rod, especially relate to a kind of extremely thin coaxial wire extruder with suddenly compressing screw rod.
Background technology
In superfine coaxial cord is produced, wherein there is a procedure need to coat on the metallic conductor surface one deck high-temperature insulating layer plastics, existing coating technology is: pass through insulating barrier head eye mould under the metallic conductor atmospheric pressure state under the effect of traction, advance Insulation Material with molten condition by head and an eye mould uniformly to be coated on metallic conductor surface by screw rod rotation this moment, coats electric wire surface insulation layer after being shaped and enter tank again and carry out cooling and shaping and become coaxial cord.The employed screw-rod structure of superfine coaxial extruder all is slow compressed format at present, as shown in Figure 1, has successively feed section 11 along axis direction on the screw rod body 1, compression section 12 and metering section 13 these three sections, pitch in three sections is all identical, the length g of each section, y, j is greater than the pitch of several times, wherein the spiral groove depth of feed section 11 and metering section 13 is fixed, the spiral groove depth of compression section gradually changes from deep to shallow, the spiral groove depth of feed section 11 is greater than the spiral groove depth of compression section 12, and the spiral groove depth of compression section 12 is again greater than the spiral groove depth of metering section 11.This kind gradation type screw-rod structure is in the situation of the length limited of screw rod body 1, fully melted by heating is good the interior material of screw rod can to occur, perhaps cause material to do sth. in advance too fast melting, form idle running, lose enough propelling movement power forward, cause discharging to have some setbacks, make the extremely thin coaxial wire wire diameter in the production unstable.
Summary of the invention
In order to overcome the defective of prior art, the purpose of this invention is to provide a kind of extremely thin coaxial wire extruder with suddenly compressing screw rod.
In order to achieve the above object, the present invention adopts following technical scheme:
A kind of extremely thin coaxial wire extruder is with suddenly compressing screw rod, comprise the screw rod body, described screw rod body has the screw channel of phase uniform pitch, described screw rod body has feed section, compression section and metering section successively along axis direction, it is characterized in that: the length of described compression section is less than or equal to the screw channel width of described screw rod body.
Preferably, the length of compression section is less than the screw channel width of described screw rod body.
Preferably, the length of described feed section accounts for more than 2/3rds of length that described screw rod body has threaded portion.
Owing to adopting technique scheme, a kind of extremely thin coaxial wire extruder provided by the invention is with suddenly compressing screw rod, in the situation that the screw rod body length is limited, because the anxious compressed format of the less formation of compression section length, the length of feed section is guaranteed, and material fully melting is good, through the urgency compression of compression section, the assurance discharging is smooth, makes the extremely thin coaxial wire wire diameter in the production more stable.
Description of drawings
Fig. 1 is the structural representation that a kind of extremely thin coaxial wire extruder of prior art is used screw rod.
Fig. 2 is the structural representation that a kind of extremely thin coaxial wire extruder of prior art is used screw rod.
The specific embodiment
Below in conjunction with accompanying drawing the preferred embodiment of the present invention is elaborated.
See also Fig. 2, the invention provides a kind of extremely thin coaxial wire extruder with suddenly compressing screw rod, comprise screw rod body 2, described screw rod body has the screw channel of phase uniform pitch, and described screw rod body 2 has feed section 21, compression section 22 and metering section 23 successively along axis direction, and the length of feed section 21 is G, the length of compression section 22 is Y, the length of metering section 23 is J, and wherein, the length Y of described compression section 22 is less than or equal to the screw channel width of described screw rod body.
In the present embodiment, the length Y of compression section is less than the screw channel width of described screw rod body 2.The length of described feed section 21 accounts for more than 2/3rds of length that described screw rod body 2 has threaded portion.Adopt the screw-rod structure of the present embodiment, in the situation that screw rod body 2 length limited systems, the length of compression section 22 is only less than a screw channel width, the length of feed section 21 is guaranteed, material fully melting is good, anxious compression through compression section 22 guarantees that discharging is smooth, makes the extremely thin coaxial wire wire diameter in the production more stable.
Above-described embodiment only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the personage who is familiar with technique can understand content of the present invention and according to this enforcement; can not limit protection scope of the present invention with this; all equivalences that Spirit Essence is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (3)
1. an extremely thin coaxial wire extruder is with suddenly compressing screw rod, comprise the screw rod body, described screw rod body has the screw channel of phase uniform pitch, described screw rod body has feed section, compression section and metering section successively along axis direction, it is characterized in that: the length of described compression section is less than or equal to the screw channel width of described screw rod body.
2. an extremely thin coaxial wire extruder is with suddenly compressing screw rod, and it is characterized in that: the length of compression section is less than the screw channel width of described screw rod body.
3. an extremely thin coaxial wire extruder is with suddenly compressing screw rod, and it is characterized in that: the length of described feed section accounts for more than 2/3rds of length that described screw rod body has threaded portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102631282A CN103317701A (en) | 2013-06-27 | 2013-06-27 | Urgent compression screw rod for ultrathin coaxial line extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102631282A CN103317701A (en) | 2013-06-27 | 2013-06-27 | Urgent compression screw rod for ultrathin coaxial line extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103317701A true CN103317701A (en) | 2013-09-25 |
Family
ID=49186888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102631282A Pending CN103317701A (en) | 2013-06-27 | 2013-06-27 | Urgent compression screw rod for ultrathin coaxial line extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103317701A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009034993A (en) * | 2007-07-12 | 2009-02-19 | Mitsui Chemicals Inc | Extruder screw, and method for producing polymethylpentene film |
| CN102744861A (en) * | 2012-07-30 | 2012-10-24 | 安徽普瑞斯塑料机械制造有限公司 | Special screw for extruding electro-conductive plastic cable material |
| CN102990900A (en) * | 2012-11-15 | 2013-03-27 | 西安近代化学研究所 | Single screw extruder for forming propellant with high solid content |
-
2013
- 2013-06-27 CN CN2013102631282A patent/CN103317701A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009034993A (en) * | 2007-07-12 | 2009-02-19 | Mitsui Chemicals Inc | Extruder screw, and method for producing polymethylpentene film |
| CN102744861A (en) * | 2012-07-30 | 2012-10-24 | 安徽普瑞斯塑料机械制造有限公司 | Special screw for extruding electro-conductive plastic cable material |
| CN102990900A (en) * | 2012-11-15 | 2013-03-27 | 西安近代化学研究所 | Single screw extruder for forming propellant with high solid content |
Non-Patent Citations (3)
| Title |
|---|
| 唐颂超: "《高分子材料成型加工》", 31 May 2013, 中国轻工业出版社 * |
| 温志远: "《塑料成型工艺及设备》", 30 November 2012, 北京理工大学出版社 * |
| 王慧敏: "《高分子材料加工工艺学》", 30 April 2012, 中国石化出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104357990A (en) | Forming wire and preparing method of forming wire | |
| CN205238505U (en) | Loach seal wire tectorial membrane processing equipment | |
| CN201532819U (en) | Improved structure of head of wire and cable extrusion machine | |
| CN204666879U (en) | A kind of 8-shaped optical cable half squash type extrusion die | |
| CN103317701A (en) | Urgent compression screw rod for ultrathin coaxial line extruder | |
| CN105355333B (en) | Aluminium alloy cable insulation, sheath preparation technique and equipment | |
| CN204414542U (en) | A kind of can the Novel extruder head group of discharging | |
| CN213082273U (en) | Mold core device for stabilizing core deviation of cable insulation layer | |
| CN207264834U (en) | A kind of oil-filled twisted extruding sizing integration mold of communication cable filled with petroleum | |
| CN203198223U (en) | Extrusion mold for coextrusion of two rubber insulated cable cores | |
| CN203485416U (en) | Plastic extruding mold for wire insulating layer | |
| CN204749204U (en) | Novel extrusion molding mould | |
| CN205522388U (en) | Wire and cable pipe extruder | |
| CN204773475U (en) | Wire and cable covering discharge head extruder | |
| CN109203410B (en) | Extrusion processing die capable of improving stripping force of automobile wire | |
| CN204315308U (en) | Cable cover(ing) is extruded and is used vaccum-pumping equipment | |
| CN202422865U (en) | Machine head of cabtyre cable rubber extruding machine | |
| CN203366857U (en) | Replaceable mold core of lining sleeve of wire cable extrusion insulating layer and sheath layer | |
| CN204354451U (en) | Cable extruding mould after a kind of improvement | |
| CN201812589U (en) | Sizing die of longitudinal-covering aluminum-plastic compound tape of waterproof cable | |
| CN203580080U (en) | Extruder head | |
| CN203863981U (en) | Tube extruding type mold for photovoltaic cable sheath | |
| CN204867847U (en) | Extrusion die | |
| CN205185264U (en) | Beacon cable assembling die for locomotive | |
| CN201689742U (en) | Improved structure of wire and cable extruder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130925 |