CN106328314A - Heat tracing cable crosslinking polyolefin insulating layer extruded wrapping technology - Google Patents
Heat tracing cable crosslinking polyolefin insulating layer extruded wrapping technology Download PDFInfo
- Publication number
- CN106328314A CN106328314A CN201610820070.0A CN201610820070A CN106328314A CN 106328314 A CN106328314 A CN 106328314A CN 201610820070 A CN201610820070 A CN 201610820070A CN 106328314 A CN106328314 A CN 106328314A
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- China
- Prior art keywords
- guide pin
- pin bushing
- upstream
- cable
- concentric
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
Abstract
The invention discloses a heat tracing cable crosslinking polyolefin insulating layer extruded wrapping technology. An insulation layer extruded type die is provided, and comprises an inner die core, an outer die sleeve, an upstream concentric guide sleeve, and a downstream concentric guide sleeve. The upstream concentric guide sleeve and the downstream concentric guide sleeve comprise hard guide sleeve outer sleeves and guide sleeve rubber rings disposed in the hard guide sleeve outer sleeves. The heat tracing cable crosslinking polyolefin insulating layer extruded wrapping technology comprises steps that S1, a direction of a to-be-extruded and wrapped cable is adjusted, and then no friction is generated between the to-be-extruded and wrapped cable and the inner wall of the inner die core, when the to-be-extruded and wrapped cable passes through the inner die core; S2, the position of the upstream concentric guide sleeve and the position of the downstream concentric guide sleeve are adjusted, and the guide sleeve rubber rings of the upstream concentric guide sleeve and the downstream concentric guide sleeve are not deformed; S3, a position of an upstream tension pulley and a position of a downstream tension pulley are adjusted, and then the guide sleeve rubber rings of the upstream concentric guide sleeve and the downstream concentric guide sleeve are not deformed. Concentricity quality of insulation layers of products such as cables or heat tracing bands is guaranteed.
Description
Technical field
The present invention relates to a kind of cable or heating tape Product processing equipment technical field, particularly a kind of accompanying-heat cable crosslinking
Polyolefin insulation layer extrudes technique.
Background technology
The processing technique of the product such as cable or heating tape mainly includes drawing, twisting system and cladding: draws and is mainly used in processing
Cable or the conductor wire core of heating tape, make the metal wire of metal bar or thicker be forced through mould, metal bar by pulling force effect
Or the sectional area of metal wire is compressed and section shape and size required by obtaining；Strand system is to improve cable or heating tape
The pliability of core, entirety degree, and overcome single cable or the Kelvin effect of heating tape core existence, and many single lines are pressed
According to predetermined direction weave in；Cladding be primarily referred to as the product such as cable or heating tape conductor thread core outer wrapping one layer or
Multi-layer insulation and jacket material, thermoplastic superior performance, there is good process industrial art performance, in particular for electricity
Simple process when cable or heating tape extrude insulating barrier and sheath production, the base that cable or heating tape plastic insulating layer and sheath produce
The manner uses that single screw extrusion machine is continuously extruded carries out, owing to extruder has extrusion continuously, so plastics
The production process of insulation and sheath is also carried out continuously.
The product such as cable or heating tape is when carrying out being coated with procedures, it is usually required mainly for one of technical barrier overcome is
Keeping the degree of eccentricity of insulating barrier, i.e. the deviation value of the thickness of insulating layer on basis can not be excessive, and the insulating barrier of cable or heating tape is same
Radial thickness at one cross section and varying cross-section should be consistent.Affect the bias of the product insulating barrier such as cable or heating tape
It is the plasticizing situation of insulant itself, the most mainly plastics melt temperature, insulation that the factor of degree is broadly divided into two pieces: one
Material shear strain rate and the technological parameter such as the melted heating of plastics and incorporation time；Two is insulant cable when extrusion
With the concentricity of mould, when cable tension force not or poor with the concentricity of mould, although at the position-limiting action of inner mould core
Under, cable concentricity at inner mould core extrusion can be guaranteed, but the concentricity at cable and outer die casing extrusion
Relatively large deviation can occur, thus affect the degree of eccentricity of insulating barrier.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of accompanying-heat cable cross-linked polyolefin insulating barrier and extrude work
Skill, it is possible to ensure that cable and mould have higher concentricity, such that it is able to ensure the product insulating barrier such as cable or heating tape
Degree of eccentricity quality.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of accompanying-heat cable cross-linked polyolefin insulating barrier extrudes technique, and including insulating barrier plsitive mold, described insulating barrier extrudes
Formula mould includes the inner mould core for limiting cable location to be extruded and outside extruding insulant and being wrapped in outside cable
Die sleeve, described outer die casing coaxial package is in the outside of described inner mould core, and described inner mould core is positioned at the upstream of described outer die casing；Also
Including being arranged at the concentric guide pin bushing in upstream of described outer die casing upstream and being arranged at the concentric guide pin bushing in downstream in described inner mould core downstream,
The concentric guide pin bushing of the concentric guide pin bushing in described upstream and described downstream is all coaxially disposed with described outer die casing, the concentric guide pin bushing in described upstream and institute
State the concentric guide pin bushing in upstream and all include hard guide pin bushing outer tube and the guide pin bushing rubber ring being arranged in described hard guide pin bushing outer tube, described in lead
The internal diameter of set rubber ring is identical with the external diameter of cable to be extruded；Further comprising the steps of:
S1, by cable to be extruded sequentially pass through the concentric guide pin bushing in described upstream, described inner mould core, described outer die casing and described downstream with
Heart guide pin bushing, then makes cable to be extruded keep certain tension force, adjusts the direction of cable to be extruded and makes cable to be extruded shuttle back and forth institute
Will not be rubbed when stating inner mould core the inwall of described inner mould core；
S2, make cable to be extruded keep tension force and direction constant, adjust the concentric guide pin bushing of the concentric guide pin bushing in described upstream and described downstream
Position, the described guide pin bushing rubber ring making the concentric guide pin bushing of the concentric guide pin bushing in described upstream and described downstream is the most undeformed, fixing described
The position of the concentric guide pin bushing of the concentric guide pin bushing in upstream and described downstream；
S3, will cable be extruded from the concentric guide pin bushing in described upstream, described inner mould core, the concentric guide pin bushing of described outer die casing and described downstream
Middle extraction, first walks around upstream straining pulley and sequentially passes through the concentric guide pin bushing in described upstream, described inner mould core, described outer die casing and described again
The concentric guide pin bushing in downstream, then walks around downstream tension wheel by cable to be extruded, and then adjustment upstream straining pulley and downstream tension are taken turns
Position, the described guide pin bushing rubber ring making the concentric guide pin bushing of the concentric guide pin bushing in described upstream and described downstream is the most undeformed.
As the further improvement of technique scheme, the concentric guide pin bushing of the concentric guide pin bushing in described upstream and described upstream the most all wraps
Including for installing described hard guide pin bushing outer tube and regulating the installation regulation housing of described hard guide pin bushing outer tube position, described hard is led
The outer shape of set outer tube radial section is rectangle, and described installation regulation housing is also rectangle, the four of described installation regulation housing
The position adjustments bolt for fixing described hard guide pin bushing outer tube it is provided with on bar limit；And adjust the concentric guide pin bushing in described upstream and
The position of the concentric guide pin bushing in described downstream comprises the following steps:
S21, the described position adjustments bolt first unscrewed on the four edges of described installation regulation housing, regulate described hard guide pin bushing
The height of outer tube, makes the bottom of described guide pin bushing rubber ring and top without deformation, the most tentatively tightens described regulation housing of installing
Described position adjustments bolt on base；
S22, then regulate the horizontal level of described hard guide pin bushing outer tube, make the horizontal both sides of described guide pin bushing rubber ring without deformation,
The most tentatively tighten the described position adjustments bolt on described two vertical edges installing regulation housing, make outside described hard guide pin bushing
Pipe cannot move horizontally but can move up and down；
S23, the described position adjustments bolt tentatively tightened on the top margin of described installation regulation housing, the most alternately tighten described peace
Debug the described position adjustments bolt on the four edges of joint housing, and keep described guide pin bushing rubber ring without local deformation, until entirely
Described in portion, position adjustments bolt fastens completely.
As the further improvement of technique scheme, the inner side of described hard guide pin bushing outer tube is provided with for fixing described
The rubber ring mounting groove of guide pin bushing rubber ring, the outside of described guide pin bushing rubber ring is provided with the rubber coordinating described rubber ring mounting groove
Circle fixed part, the outside of described guide pin bushing rubber ring is provided with the rubber ring limiting section for limiting cable location to be extruded, described
It is arc that rubber ring limiting section contacts the radial cross-sectional shape of the medial surface of cable to be extruded, and the contact of described rubber ring limiting section
The medial surface of cable to be extruded is provided with polytetrafluorethylecoatings coatings.
Compared with prior art, the invention has the beneficial effects as follows:
A kind of accompanying-heat cable cross-linked polyolefin insulating barrier provided by the present invention extrudes technique, by arrange the concentric guide pin bushing in upstream and
The concentric guide pin bushing in downstream, it is possible to ensure that cable and mould have higher concentricity, such that it is able to ensure that cable or heating tape etc. produce
The degree of eccentricity quality of product insulating barrier.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of insulating barrier plsitive mold of the present invention；
Fig. 2 is the structural representation of the concentric guide pin bushing of the concentric guide pin bushing in upstream of the present invention and downstream.
Detailed description of the invention
It is the structural representation of one specific embodiment of the present invention referring to figs. 1 through Fig. 2, Fig. 1 to Fig. 2.
As shown in Figure 1 to Figure 2, a kind of accompanying-heat cable cross-linked polyolefin insulating barrier extrudes technique, including insulating barrier squash type
Mould, described insulating barrier plsitive mold includes the inner mould core 20 for limiting cable location to be extruded and for extruding insulation
Material the outer die casing 10 being wrapped in outside cable, described outer die casing 10 coaxial package is in the outside of described inner mould core 20 and described
Inner mould core 20 is positioned at the upstream of described outer die casing 10；Also include being arranged at described outer die casing 10 upstream the concentric guide pin bushing in upstream 40,
Be arranged at the concentric guide pin bushing in downstream 30 in described inner mould core 20 downstream, the concentric guide pin bushing of the concentric guide pin bushing in described upstream 40 and described downstream
30 are all coaxially disposed with described outer die casing 10, and the concentric guide pin bushing of the concentric guide pin bushing in described upstream 40 and described upstream 40 all includes that hard is led
Set outer tube 41 and the guide pin bushing rubber ring 42 being arranged in described hard guide pin bushing outer tube 41, the internal diameter of described guide pin bushing rubber ring 42 with treat
The external diameter extruding cable is identical；The inner side of described hard guide pin bushing outer tube 41 is provided with the rubber for fixing described guide pin bushing rubber ring 42
Cushion rubber mounting groove, the outside of described guide pin bushing rubber ring 42 is provided with the rubber ring fixed part 421 coordinating described rubber ring mounting groove,
The outside of described guide pin bushing rubber ring 42 is provided with the rubber ring limiting section 422 for limiting cable location to be extruded, described rubber
The radial cross-sectional shape of the medial surface that circle limiting section 422 contacts cable to be extruded is arc, and described rubber ring limiting section 422 connects
The medial surface touching cable to be extruded is provided with polytetrafluorethylecoatings coatings.Further comprising the steps of:
S1, cable to be extruded is sequentially passed through the concentric guide pin bushing in described upstream 40, described inner mould core 20, described outer die casing 10 and described
The concentric guide pin bushing in downstream 30, then makes the tension force that cable to be extruded holding is certain, and the direction adjusting cable to be extruded makes line to be extruded
Cable shuttle back and forth described inner mould core 20 time will not rub the inwall of described inner mould core 20；
S2, make cable to be extruded keep tension force and direction constant, adjust the concentric guide pin bushing in described upstream 40 and described downstream led with one heart
The position of set 30, the described guide pin bushing rubber ring 42 making the concentric guide pin bushing of the concentric guide pin bushing in described upstream 40 and described downstream 30 is the most invisible
Become, the concentric guide pin bushing in fixing described upstream 40 and the position of the concentric guide pin bushing in described downstream 30；
S3, by cable to be extruded from the concentric guide pin bushing in described upstream 40, described inner mould core 20, described outer die casing 10 and described downstream with
Heart guide pin bushing 30 is extracted out, first walks around upstream straining pulley and sequentially pass through the concentric guide pin bushing in described upstream 40, described inner mould core 20, described again
The concentric guide pin bushing of outer die casing 10 and described downstream 30, then walks around downstream tension wheel by cable to be extruded, then adjusts upstream tension force
Wheel and the position of downstream tension wheel, make the described guide pin bushing rubber ring of the concentric guide pin bushing of the concentric guide pin bushing in described upstream 40 and described downstream 30
42 is the most undeformed.
Specifically, the concentric guide pin bushing of the concentric guide pin bushing in described upstream 40 and described upstream 40 also includes for installing described hard
Guide pin bushing outer tube 41 also regulates the installation regulation housing 43 of described hard guide pin bushing outer tube 41 position, and described hard guide pin bushing outer tube 41 is radially
The outer shape in cross section is rectangle, and described installation regulation housing 43 is also rectangle, on the four edges of described installation regulation housing 43
It is provided with the position adjustments bolt 44 for fixing described hard guide pin bushing outer tube 41；And adjust described upstream concentric guide pin bushing 40 He
The position of the concentric guide pin bushing in described downstream 30 comprises the following steps:
S21, the described position adjustments bolt 44 first unscrewed on the four edges of described installation regulation housing 43, regulate described hard
The height of guide pin bushing outer tube 41, makes the bottom of described guide pin bushing rubber ring 42 and top without deformation, the most tentatively tightens described installation and adjust
Described position adjustments bolt 44 on the base of joint housing 43；
S22, then regulate the horizontal level of described hard guide pin bushing outer tube 41, make the horizontal both sides of described guide pin bushing rubber ring 42 without becoming
Shape, the most tentatively tighten described install regulation housing 43 two vertical edges on described position adjustments bolt 44, make described firmly
Matter guide pin bushing outer tube 41 cannot move horizontally but can move up and down；
S23, the described position adjustments bolt 44 tentatively tightened on the top margin of described installation regulation housing 43, the most alternately tighten institute
State the described position adjustments bolt 44 on the four edges installing regulation housing 43, and keep described guide pin bushing rubber ring 42 to become without local
Shape, until whole described position adjustments bolt 44 fastens completely.
Preferably enforcement to the present invention is illustrated above, and certainly, the present invention can also use and above-mentioned enforcement
The form that mode is different, those of ordinary skill in the art are in the conversion of the equivalent made on the premise of spirit of the present invention
Or change accordingly, all should belong in protection scope of the present invention.
Claims (3)
1. an accompanying-heat cable cross-linked polyolefin insulating barrier extrudes technique, it is characterised in that: include insulating barrier plsitive mold, institute
State insulating barrier plsitive mold and include the inner mould core for limiting cable location to be extruded and for extruding insulant and wrapping up
Outer die casing outside cable, described outer die casing coaxial package in the outside of described inner mould core, and described inner mould core be positioned at described outside
The upstream of die sleeve；It is characterized in that: also include being arranged at the concentric guide pin bushing in upstream of described outer die casing upstream and be arranged at described interior
The concentric guide pin bushing in downstream in core rod downstream, the concentric guide pin bushing of the concentric guide pin bushing in described upstream and described downstream all coaxially sets with described outer die casing
Putting, the concentric guide pin bushing of the concentric guide pin bushing in described upstream and described upstream all includes hard guide pin bushing outer tube and is arranged at outside described hard guide pin bushing
Guide pin bushing rubber ring in pipe, the internal diameter of described guide pin bushing rubber ring is identical with the external diameter of cable to be extruded；Further comprising the steps of:
S1, by cable to be extruded sequentially pass through the concentric guide pin bushing in described upstream, described inner mould core, described outer die casing and described downstream with
Heart guide pin bushing, then makes cable to be extruded keep certain tension force, adjusts the direction of cable to be extruded and makes cable to be extruded shuttle back and forth institute
Will not be rubbed when stating inner mould core the inwall of described inner mould core；
S2, make cable to be extruded keep tension force and direction constant, adjust the concentric guide pin bushing of the concentric guide pin bushing in described upstream and described downstream
Position, the described guide pin bushing rubber ring making the concentric guide pin bushing of the concentric guide pin bushing in described upstream and described downstream is the most undeformed, fixing described
The position of the concentric guide pin bushing of the concentric guide pin bushing in upstream and described downstream；
S3, will cable be extruded from the concentric guide pin bushing in described upstream, described inner mould core, the concentric guide pin bushing of described outer die casing and described downstream
Middle extraction, first walks around upstream straining pulley and sequentially passes through the concentric guide pin bushing in described upstream, described inner mould core, described outer die casing and described again
The concentric guide pin bushing in downstream, then walks around downstream tension wheel by cable to be extruded, and then adjustment upstream straining pulley and downstream tension are taken turns
Position, the described guide pin bushing rubber ring making the concentric guide pin bushing of the concentric guide pin bushing in described upstream and described downstream is the most undeformed.
A kind of accompanying-heat cable cross-linked polyolefin insulating barrier the most according to claim 1 extrudes technique, it is characterised in that: described
The concentric guide pin bushing of the concentric guide pin bushing in upstream and described upstream also includes for installing described hard guide pin bushing outer tube and regulating described hard
The installation regulation housing of guide pin bushing outer tube position, the outer shape of described hard guide pin bushing outer tube radial section is rectangle, described installation
Regulation housing is also rectangle, and the four edges of described installation regulation housing is provided with for fixing described hard guide pin bushing outer tube
Position adjustments bolt；And the position adjusting the concentric guide pin bushing of the concentric guide pin bushing in described upstream and described downstream comprises the following steps:
S21, the described position adjustments bolt first unscrewed on the four edges of described installation regulation housing, regulate described hard guide pin bushing
The height of outer tube, makes the bottom of described guide pin bushing rubber ring and top without deformation, the most tentatively tightens described regulation housing of installing
Described position adjustments bolt on base；
S22, then regulate the horizontal level of described hard guide pin bushing outer tube, make the horizontal both sides of described guide pin bushing rubber ring without deformation,
The most tentatively tighten the described position adjustments bolt on described two vertical edges installing regulation housing, make outside described hard guide pin bushing
Pipe cannot move horizontally but can move up and down；
S23, the described position adjustments bolt tentatively tightened on the top margin of described installation regulation housing, the most alternately tighten described peace
Debug the described position adjustments bolt on the four edges of joint housing, and keep described guide pin bushing rubber ring without local deformation, until entirely
Described in portion, position adjustments bolt fastens completely.
A kind of accompanying-heat cable cross-linked polyolefin insulating barrier the most according to claim 1 extrudes technique, it is characterised in that: described
The inner side of hard guide pin bushing outer tube is provided with the rubber ring mounting groove for fixing described guide pin bushing rubber ring, described guide pin bushing rubber ring
Outside is provided with the rubber ring fixed part coordinating described rubber ring mounting groove, and the outside of described guide pin bushing rubber ring is provided with for limiting
The rubber ring limiting section of cable location to be extruded, the radial direction of the medial surface that described rubber ring limiting section contacts cable to be extruded is cut
Face is shaped as arc, and the medial surface that described rubber ring limiting section contacts cable to be extruded is provided with polytetrafluorethylecoatings coatings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610820070.0A CN106328314B (en) | 2016-09-13 | 2016-09-13 | A kind of accompanying-heat cable cross-linked polyolefin insulating barrier extrudes technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610820070.0A CN106328314B (en) | 2016-09-13 | 2016-09-13 | A kind of accompanying-heat cable cross-linked polyolefin insulating barrier extrudes technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106328314A true CN106328314A (en) | 2017-01-11 |
| CN106328314B CN106328314B (en) | 2017-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610820070.0A Active CN106328314B (en) | 2016-09-13 | 2016-09-13 | A kind of accompanying-heat cable cross-linked polyolefin insulating barrier extrudes technique |
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| CN (1) | CN106328314B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107967970A (en) * | 2017-11-28 | 2018-04-27 | 安徽环瑞电热器材有限公司 | A kind of accompanying-heat cable manufacture device and its application method |
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| CN102514171A (en) * | 2012-01-05 | 2012-06-27 | 河北华通线缆集团有限公司 | Extruder head |
| CN202352419U (en) * | 2011-11-24 | 2012-07-25 | 湖北洪乐电缆股份有限公司 | Eccentric adjuster of for fixing eccentric plastic extruder head |
| CN103137273A (en) * | 2011-11-30 | 2013-06-05 | 大连永太精密工业有限公司 | Extrusion die |
| EP2752256A1 (en) * | 2013-01-07 | 2014-07-09 | Nexans | Device for corrugating a pipe |
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2016
- 2016-09-13 CN CN201610820070.0A patent/CN106328314B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202352419U (en) * | 2011-11-24 | 2012-07-25 | 湖北洪乐电缆股份有限公司 | Eccentric adjuster of for fixing eccentric plastic extruder head |
| CN103137273A (en) * | 2011-11-30 | 2013-06-05 | 大连永太精密工业有限公司 | Extrusion die |
| CN102514171A (en) * | 2012-01-05 | 2012-06-27 | 河北华通线缆集团有限公司 | Extruder head |
| EP2752256A1 (en) * | 2013-01-07 | 2014-07-09 | Nexans | Device for corrugating a pipe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107967970A (en) * | 2017-11-28 | 2018-04-27 | 安徽环瑞电热器材有限公司 | A kind of accompanying-heat cable manufacture device and its application method |
| CN107967970B (en) * | 2017-11-28 | 2019-04-12 | 安徽环瑞电热器材有限公司 | A kind of accompanying-heat cable manufacturing device and its application method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106328314B (en) | 2017-07-14 |
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