CN105845280A - Two-core three-layer heat tracing cable manufacturing device - Google Patents
Two-core three-layer heat tracing cable manufacturing device Download PDFInfo
- Publication number
- CN105845280A CN105845280A CN201610399221.XA CN201610399221A CN105845280A CN 105845280 A CN105845280 A CN 105845280A CN 201610399221 A CN201610399221 A CN 201610399221A CN 105845280 A CN105845280 A CN 105845280A
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- CN
- China
- Prior art keywords
- core
- bypass
- layers
- mould
- feeding
- 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
-
- 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
- H01B13/143—Insulating conductors or cables by extrusion with a special opening of the extrusion head
- H01B13/144—Heads for simultaneous extrusion on two or more conductors
Abstract
The invention discloses a two-core three-layer heat tracing cable manufacturing device. The two-core three-layer heat tracing cable manufacturing device comprises a two-core three-layer self-centering co-extruder head, a shell, a mold core support sleeve, a dual-core mold and glands, wherein the mold core support sleeve is arranged in the shell; a conical duct is opened in the mold core support sleeve; two ends of the mold core support sleeve are fixedly positioned together with a front gland and a back gland; a feeding channel on the shell is communicated with a connecting sleeve arranged on the shell; a first feeding channel is formed between an inlet wire positioning mold and an inner conductor laminated mold; the first feeding channel comprises a first branch and a first bypass; and the first branch is vertically communicated with a first molten space formed between the inlet wire positioning mold and the inner conductor laminated mold. Through adoption of the two-core three-layer heat tracing cable manufacturing device, rotation of fusion liquid can be formed inside the first molten space and a second molten space, and corresponding structures of machined cables are fixed more firmly, so that the safety and stability of the cables are further improved.
Description
Technical field
The invention belongs to electric wire and manufacture apparatus field, relate generally to a kind of three layers of heat tracing of two cores
Cables manufacturing device.
Background technology
In recent years, domestic cable industry uses three layer coextruding device the most at large, more domestic
Producer, referring also to the three layer coextruding device of import, is manufactured.But, import and domestic
The head of the three layer coextruding device that some producers manufacture uses annular feeding-passage, and this is current
Widespread practice, but the head of this feedway has the disadvantage that and uses at metal at present
Adding one layer of transition zone between inner core and ptc material, at present, this transition zone relies primarily on it
Properties of materials own, good with metal inside and the generation of PTC inner core is fixing, but at present
This fixing is not the most very firm, occurs short after still there will be use overlong time
Road, the situation of mismatch.Thus, prior art needs to improve.
Summary of the invention
It is an object of the invention to provide three layers of accompanying-heat cable of a kind of two core and manufacture device in order to overcome
Above-mentioned technological deficiency.
For achieving the above object, the present invention provides three layers of accompanying-heat cable of a kind of two core to manufacture device,
Including head, actively paying out machine, conductor draw drum, dancing wheel, heater, thermostatic water bath,
Traction apparatus and take-up reel, described head is three layers of self-centering co-extruding machine head of two cores, including housing,
Core rod support set, twin-core mould and, equipped with core rod support set in housing, open in core rod support set
There are tapered duct, inlet wire location mould, inner conductor layer mould, PTC layer mould and four pieces of moulds of insulating barrier mould
Tool is contained in tapered duct successively, and core rod support set two ends position with front gland and rear pressing cover respectively
Fixing, the feeding-passage on housing communicates with the coupling sleeve being arranged on housing, and described inlet wire is fixed
It is provided with the first feeding-passage, described first feeding-passage between position mould and described inner wire tunic
Including the first branch road and the first bypass, inlet wire location mould described in described first branch road vertical connection with
The first melt space formed between described inner wire tunic.
It is also preferred that the left described first bypass tilts to connect described first branch road and the described first melted sky
Between.
It is also preferred that the left described first bypass has radian.
It is also preferred that the left described first feeding-passage also includes an annular feeding-passage, described first is other
Road connection described annular feeding-passage and described first branch road.
It is also preferred that the left there is the axis differed between some described first branch roads.
It is also preferred that the left be provided with the second feeding-passage between described inner conductor layer mould and PTC layer mould,
The second melt space is formed between described inner conductor layer mould and PTC layer mould.
It is also preferred that the left described second feeding-passage includes the second branch road and the second bypass.
It is also preferred that the left described second bypass tilts to connect described second branch road and the described second melted sky
Between.
It is also preferred that the left described second bypass incline direction is contrary with described first bypass incline direction.
Compared with prior art, the invention has the beneficial effects as follows: the present invention can form first and melt
Melt space and the second melt space is internally formed the rotation of fused solution, make the cable processed
Formed stronger fixing between the corresponding structure of line, make cable safety and stability further
Improve.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention；
Fig. 2 is three layers of self-centering head prior art construction schematic diagram of the present invention two core；
Fig. 3 is the head sectional view of the present invention；
Fig. 4 is that the embodiment of the present invention one AA` is to structure chart；
Fig. 5 is that the embodiment of the present invention two AA` is to structure chart；
Fig. 6 is that the embodiment of the present invention three AA` is to structure chart；
Fig. 7 is that the embodiment of the present invention four BB` is to structure chart.
Detailed description of the invention
Below in conjunction with accompanying drawing, to the present invention, above-mentioned and other technical characteristic and advantage are made more detailed
Thin explanation.
See Fig. 1, for the overall structure schematic diagram of invention, from two actively paying out machine 100 Hes
Two conductors 1200 actively released by two draw drums 200, take turns 300 tensionings and heating through dancing
After device 400 heating, enter three layers of two core between three plastic extruders 600,700,800
By the upper inner conductor layer of disposable cladding, PTC heater layer, multiple in self-centering co-extruding machine head 500
After closing insulating barrier, then after thermostatic water bath 900 cools down, by traction apparatus 1000 and take-up reel
1100 keep well.: from two, actively paying out machine 100 and two draw drums 200 actively release two
Conductor 1200, after dancing wheel 3 00 tensionings and heater 400 heating, enters three plastics
By one in three layers of self-centering co-extruding machine head of two cores 500 between extruder 600,700,800
After secondary property cladding upper inner conductor layer, PTC heater layer, composite insulation layer, then through thermostatic water bath
After 900 coolings, kept well by traction apparatus 1000 and take-up reel 1100.Two conductors 1200
Tensile force should keep consistent.
Seeing Fig. 2, Fig. 2 is the existing of two three layers of self-centering co-extruding machine head of core of the present invention
Technical pattern schematic diagram.Three layers of self-centering co-extruding machine head of two cores of the prior art, mainly include
Object 1, core rod support set 2, twin-core mould and gland 3 and 4, equipped with core rod in housing 1
Support set 2, has square duct, inlet wire location mould 15, inner conductor layer in core rod support set 2
Mould 16, PTC layer mould 17 and 18 4 pieces of moulds of insulating barrier mould are contained in tapered duct successively,
Core rod support set 2 two ends position fixing with front gland 3 and rear pressing cover 4 respectively, core rod support set
2 outer rims have three feeding-passages respectively with the inner conductor layer mould 15 in core rod support set 2, PTC
Layer mould 17 and insulating barrier mould 18 communicate, the feeding-passage on housing 1 be arranged on housing 1
Coupling sleeve communicate.
Fix with pin 8 between described housing 1 and core rod support set 2.
It is provided with the first charging between described inlet wire location mould 15 and described inner conductor layer mould 16 to lead to
Road 21, is provided with the second feeding-passage between described inner conductor layer mould 16 and PTC layer mould 17
22, it is provided with the 3rd feeding-passage 30 between described PTC layer mould 17 and insulating barrier mould 18.
The described first annular feeding-passage 21 part on housing 1 and the first coupling sleeve 5
Communicate, the second annular feeding-passage 22 part on housing 1 and the second coupling sleeve 6 phase
Logical, the 3rd annular feeding-passage 30 part on housing 1 communicates with the 3rd coupling sleeve 7.
In the actual course of processing, the cable metal inner core of two three layers of cable of core is from described inlet wire
The opening of location mould 15 enters between described inlet wire location mould 15 and described inner conductor layer mould 16
In the first melt space formed, this melt space has the inner conductor layer material of molten condition
Material, described metal inside is from shape between described inlet wire location mould 15 and described inner conductor layer mould 16
After the first melt space become wraps up described inner conductor layer material, along described inner conductor layer mould
The opening of 16 enters the formed between described inner conductor layer mould 16 and described PTC layer mould 17
Two melt spaces, second incorporates the PTC having molten condition in space, in like manner, last insulation
It is glad with in the cable of PTC layer that layer uses similar method to be wrapped in inner conductor layer the most wrapped
Reward.And described first feeding-passage 21 passes through for described inner conductor layer melted material, and inject
Described first melt space, described second feeding-passage 22, described third channel 30 supply respectively
Melted ptc material and insulant enter the second melt space and the 3rd melt space.
Shown in Figure 4, it is that the embodiment of the present invention one AA` is to sectional view.
Figure illustrates first melt space the 31, first feeding-passage the 21, first main road 23a
With the first bypass 24a.
In the present embodiment, described first feeding-passage includes the first main road 23a and first bypass
24a, in the present embodiment, two described first main road axis opposing upper and lower interlock, and described the
One bypass tilts to extend in described first melt space from described first main road 23a.This
The structure design of two-way circulation fused solution, it is possible to make melting in described first melt space 31
Melting liquid and present a certain degree of rotation, it is described at parcel that this rotation enables to cable inner core
During inner conductor layer, make the inner conductor layer of parcel that a certain degree of rotation also to occur, this
Rotate bring be the inner conductor layer outer surface of package there will be a certain degree of twill and
Gauffer, this gauffer can make the process contacted between described inner conductor layer with described PTC layer
In the tightst, it is possible to the fixing intensity being obviously improved between two-layer, improve product safety
Property.
In order to make the cable produced through this equipment have higher stability, described first bypass
24a should structurally meet the requirement limited by following formula:
In above formula, d be described first bypass 24a width, θ be described first bypass 24a with
Angle (radian) between first main road 23a, x is that described first bypass 24a is positioned at described the
First flourish melt space beeline described in one main road 23a intersection, y is described first
24a is at described first melt space 31 entrance, with described first main road 23a described in bypass
Distance between first melt space 31 entrance, D is described first main road width, and k is for revising
Coefficient, for the number between 0.9 to 1.1.
Owing to the speed that as a rule cable is advanced is certain, then advancing due to cable is carried
The total amount of the melting charge walked also is certain, then bypass 24a width described first different
Time, melting charge flow velocity therein can produce bigger difference, if θ angle is bigger, then d
Just should be smaller to ensure described first bypass 24a has the melting charge of enough flow velocitys to make
Material in described melt space produces and rotates, if θ angle is smaller, then d just should be relatively big,
To determine the rotating speed of melting charge fierceness less.The d determined by above formula, it is possible to obtain relatively
For stable structural parameters.
Embodiment two
Shown in Figure 5, it is the structural representation of the embodiment of the present invention two.
Embodiment two is similar to embodiment one, and difference is, refers to first in Fig. 5
Main road 23b and first bypass 24b, described first bypass 23b incline from described first main road 24b
Tiltedly extend in described first melt space 31, and present certain radian.This radian is tied
Structure can make the rotational agitation of the fused solution in described first melt space 31 more violent.
Two described first melt spaces 31 are got through by embodiment two, and in getting through
Between be provided with flow-guiding structure 25b, the setting of this flow-guiding structure can make two described first melt
Fused solution flowing in space is more violent, makes cable inner conductor layer and the PTC layer machined
In conjunction with tightr.
Embodiment three
Shown in Figure 6, it is the structural representation of the embodiment of the present invention three.
Embodiment three is similar to embodiment one, and difference is, refers to first in Fig. 6
Main road 23c and first bypass 24c, and also include an annular branch road 26c, described first is other
24c one end, road initiates from described annular branch road 26c, and the other end connects described first melt space
31。
Embodiment four
Shown in Figure 7, it is the structural representation of the embodiment of the present invention four.
Fig. 7 illustrates the schematic diagram of Fig. 3 middle section BB`.Described second feeding-passage 22 supplies
PTC fused solution enters described second melt space 32, and described second feeding-passage 22 includes the
Two branch road 27 and the second bypasses 28, described second branch road 27 vertically leads to described second and melts
Space, and described second bypass 28 initiates from described second branch road 27, is tilted into described the
Two melt spaces 33, make the melted ptc material in described second melt space have one with
Heart layer material rotational agitation in the first melt space 31 described in embodiment one, two, three
Direction in opposite direction.
So, described second melt space 32 is entered at the metal inside having wrapped up interior new material
The when of middle, the melted PTC within described second melt space 32 can produce and inner core material
The rotation that the bed of material is contrary, make therebetween is fixing more tight, promote the stability of cable with
Safety.
Above content is that to combine concrete preferred embodiment made for the present invention the most specifically
Bright, it is impossible to assert the present invention be embodied as be confined to these explanations.For belonging to the present invention
For the those of ordinary skill of technical field, without departing from the inventive concept of the premise, also may be used
To make some simple deduction or replace, it is regarded as protection scope of the present invention.
Claims (10)
1. three layers of accompanying-heat cable of two cores manufacture a device, including head, actively paying out machine, lead
Body draw drum, dancing wheel, heater, thermostatic water bath, traction apparatus and take-up reel, its feature
Being, described head is a kind of three layers of self-centering co-extruding machine head of two cores, props up including housing, core rod
Support set, twin-core mould and gland, equipped with core rod support set in housing, have in core rod support set
Tapered duct, inlet wire location mould, inner conductor layer mould, PTC layer mould and four pieces of moulds of insulating barrier mould
Being contained in successively in tapered duct, core rod support set two ends position solid with front gland and rear pressing cover respectively
Fixed, the feeding-passage on housing communicates with the coupling sleeve being arranged on housing, it is characterised in that
It is provided with the first feeding-passage between described inlet wire location mould and described inner conductor layer mould, described the
One feeding-passage includes the first branch road and the first bypass, enters described in described first branch road vertical connection
The first melt space formed between line location mould and described inner conductor layer mould.
Three layers of accompanying-heat cable of two core the most according to claim 1 manufacture device, its feature
It is that described first bypass tilts to connect described first branch road and described first melt space.
Three layers of accompanying-heat cable of two core the most according to claim 2 manufacture device, and its feature exists
In, described first bypass has radian.
Three layers of accompanying-heat cable of two core the most according to claim 1 manufacture device, its feature
Being, described first feeding-passage also includes an annular feeding-passage, described first bypass
Described annular feeding-passage and described first branch road.
Three layers of accompanying-heat cable of two core the most as claimed in claim 1 manufacture device, it is characterised in that
Between some described first branch roads, there is the axis differed.
6. three layers of accompanying-heat cable of two core as according to any one of claim 1-5 manufacture device,
It is characterized in that: between described inner conductor layer mould and PTC layer mould, be provided with the second feeding-passage,
The second melt space is formed between described inner conductor layer mould and PTC layer mould.
Three layers of accompanying-heat cable of two core the most as claimed in claim 6 manufacture device, it is characterised in that
Described second feeding-passage includes the second branch road and the second bypass.
Three layers of accompanying-heat cable of two core the most as claimed in claim 7 manufacture device, it is characterised in that
Described second bypass tilts to connect described second branch road and described second melt space.
Three layers of accompanying-heat cable of two core the most as claimed in claim 6 manufacture device, and its feature exists
In, described second bypass incline direction is contrary with described first bypass incline direction.
Three layers of accompanying-heat cable of two core the most according to claim 2 manufacture device, its feature
Being, described first bypass should structurally meet the requirement limited by following formula:
Wherein, d be described first bypass width, θ be described first bypass with described first
Angle between road, x is that described first bypass is positioned at described in described first branch road intersection the
One melt space beeline, y be described first bypass described first melt space entrance with
Described first branch road distance between described first melt space entrance, D is described first
Degree of having a lot of social connections, k is correction factor, and k is the number between 0.9 to 1.1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610399221.XA CN105845280B (en) | 2016-06-01 | 2016-06-01 | Two-core three-layer heat tracing cable manufacturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610399221.XA CN105845280B (en) | 2016-06-01 | 2016-06-01 | Two-core three-layer heat tracing cable manufacturing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105845280A true CN105845280A (en) | 2016-08-10 |
| CN105845280B CN105845280B (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610399221.XA Ceased CN105845280B (en) | 2016-06-01 | 2016-06-01 | Two-core three-layer heat tracing cable manufacturing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863202A (en) * | 2017-11-28 | 2018-03-30 | 安徽环瑞电热器材有限公司 | A kind of manufacture device and its application method of two cores heating cable |
| CN108000835A (en) * | 2017-11-28 | 2018-05-08 | 安徽环瑞电热器材有限公司 | A kind of multi-layer co-extruded device and its application method |
| CN109688640A (en) * | 2019-01-29 | 2019-04-26 | 安徽环瑞电热器材有限公司 | A kind of three-layer co-extruded accompanying-heat cable and its preparation system |
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| CN2566425Y (en) * | 2001-11-08 | 2003-08-13 | 河北宝丰线缆有限公司 | Electric cable core insulating three-layer co-extruder head |
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| CN1866414A (en) * | 2006-06-09 | 2006-11-22 | 王崇 | Process and apparatus for manufacturing double-core double-layer cable |
| CN201226278Y (en) * | 2008-05-29 | 2009-04-22 | 天水铁路电缆厂 | Current divider for extruding handpiece of electric wire and cable |
| CN102103907A (en) * | 2010-12-29 | 2011-06-22 | 王崇 | Device and method for manufacturing twin-core three-layer self-regulating heating cable |
| CN202210441U (en) * | 2011-08-17 | 2012-05-02 | 白城福佳机械制造有限公司 | 500 KV vertical tower three-layer co-extruding machine head |
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2016
- 2016-06-01 CN CN201610399221.XA patent/CN105845280B/en not_active Ceased
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| CN2566425Y (en) * | 2001-11-08 | 2003-08-13 | 河北宝丰线缆有限公司 | Electric cable core insulating three-layer co-extruder head |
| JP2004185954A (en) * | 2002-12-03 | 2004-07-02 | Mitsubishi Cable Ind Ltd | Insulated core wire manufacturing device and its manufacturing method |
| CN1866414A (en) * | 2006-06-09 | 2006-11-22 | 王崇 | Process and apparatus for manufacturing double-core double-layer cable |
| CN201226278Y (en) * | 2008-05-29 | 2009-04-22 | 天水铁路电缆厂 | Current divider for extruding handpiece of electric wire and cable |
| CN102103907A (en) * | 2010-12-29 | 2011-06-22 | 王崇 | Device and method for manufacturing twin-core three-layer self-regulating heating cable |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107863202A (en) * | 2017-11-28 | 2018-03-30 | 安徽环瑞电热器材有限公司 | A kind of manufacture device and its application method of two cores heating cable |
| CN108000835A (en) * | 2017-11-28 | 2018-05-08 | 安徽环瑞电热器材有限公司 | A kind of multi-layer co-extruded device and its application method |
| CN107863202B (en) * | 2017-11-28 | 2019-05-31 | 安徽环瑞电热器材有限公司 | A kind of manufacturing device and its application method of two cores heating cable |
| CN108000835B (en) * | 2017-11-28 | 2019-10-11 | 安徽环瑞电热器材有限公司 | A kind of multi-layer co-extruded device and its application method |
| CN109688640A (en) * | 2019-01-29 | 2019-04-26 | 安徽环瑞电热器材有限公司 | A kind of three-layer co-extruded accompanying-heat cable and its preparation system |
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| Publication number | Publication date |
|---|---|
| CN105845280B (en) | 2017-05-17 |
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