CN205564396U - A three -layer is crowded device altogether for crosslinked cable - Google Patents
A three -layer is crowded device altogether for crosslinked cable Download PDFInfo
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- CN205564396U CN205564396U CN201620360382.3U CN201620360382U CN205564396U CN 205564396 U CN205564396 U CN 205564396U CN 201620360382 U CN201620360382 U CN 201620360382U CN 205564396 U CN205564396 U CN 205564396U
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- 238000001125 extrusion Methods 0.000 claims abstract description 136
- 239000004020 conductor Substances 0.000 claims abstract description 35
- 230000004888 barrier function Effects 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000010924 continuous production Methods 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 239000011243 crosslinked material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a three -layer is crowded device altogether for crosslinked cable, it includes the first mold core of extruding, the mold core is extruded to the second and the mold core is extruded to the third, three -layer feeding device includes still that the little mold core that detachably set up in first extrusion die in -core portion pushes up little mold core go into the top income pipe of first extrusion die in -core portion with being used for, to extrude the conductor that the mold core permitted to pass through small than first for conductor that little mold core was permitted to pass through, the first mold core of extruding, the mold core is extruded to the second and the mold core setting is extruded on the axis of device is crowded altogether to the three -layer to the third, and the second is extruded the mold core and is surrounded in the first outside of extruding the mold core with discontiguous mode, the third is extruded the mold core and is surrounded in the mold core was extruded to the second the outside with discontiguous mode. The utility model discloses can be at the adjacent specification cable of continuous production under the condition about need not shut down, avoided having reduced manufacturing cost because of shutting down the waste of changing the material that the mould brought, improved production efficiency.
Description
Technical field
This utility model relates to cable production art, particularly relate to a kind of for three layers of crosslinked cable altogether
Squeeze device.
Background technology
Crosslinked cable typically refers to the Electricity Federation that insulating barrier uses cross-linked material to prepare, the most frequently used insulation
Material is crosslinked polyethylene, and therefore crosslinked cable is generally also the abbreviation of polyethylene insulated cable.Because of it
Excellent electric property, good operational safety performance and thermal overload mechanical property and installation and operation dimension
Repair the advantages such as simplicity to be widely used, and progressively replace traditional cable and wire.
General crosslinked cable generally includes conductor, internal shield, insulating barrier and external shielding layer.Electricity Federation
Internal shield and the contact surface of insulating barrier be the place that cable field intensity is the highest, any on this face lacks
Fall into and be all easiest to cause the high concentration of electric field intensity.In order to prevent in cable production process inner shield
Layer surface causes damage, current most of manufacturers all to use three-layer co-extrusion method to avoid inner shield
The generation of layer surface defect.
But, along with expanding economy, the progress of society, resources conservation has become as inevitable and social
Common recognition.Various production equipment and relevant configuration have increasingly been towards the saving energy, easy to use, saving sky
Between, the direction of the feature such as safe and efficient, one-machine-multi-function, one module multiple usages develops.Common crosslinked cable
Insulating exruded time use internal shield, insulating barrier, external shielding layer three-layer co-extruded, producing one rule
Must carry out joining mould according to technological requirement during lattice product.When needs produce adjacent-specification, it is necessary to carry out
Shut down more mold exchange, so cause substantial amounts of conductor, insulant, shielding material, electric energy, people
The waste of work cost.
At present, the mould of existing three-layer co-extruding machine head is all integrally fixed on core rod and die sleeve seat, enters
When row adjacent-specification produces, it is impossible to accomplish not shut down production, it is necessary to more mold exchange, Cai Nengbao after shutdown
The quality of card product.
Utility model content
The purpose of this utility model is to provide a kind of three layer coextruding device for crosslinked cable, its energy
Enough continuous production adjacent-specification cables in the case of need not shut down, it is to avoid change die strip because shutting down
The waste of the material come, reduces production cost, improves production efficiency.
For achieving the above object, this utility model provides techniques below scheme:
A kind of three layer coextruding device for crosslinked cable, it includes the first extrusion core rod, the second extrusion
Core rod and the 3rd extrusion core rod, three layers of feedway also include being removably disposed in the first extrusion core rod
Internal small mould core and head into pipe for what small mould core headed into the first extrusion die core inner, small mould core is permitted
Being permitted the conductor that passes through allows the conductor volume passed through little than the first extrusion core rod, first extrude core rod, the
Two extrusion core rods and the 3rd extrusion core rod are arranged on the axis of three layer coextruding device, and the second extrusion
Core rod is enclosed in the outside of the first extrusion core rod in discontiguous mode, and the 3rd extrusion core rod is not to contact
Mode be enclosed in the outside of the second extrusion core rod.
In this utility model preferred embodiment, above-mentioned small mould core is to include cylindrical end and tapering point
Tube structure, wherein, cylindrical end is maintained in the first extrusion port of the first extrusion core rod, and circle
The port depth of the height of styletable and the first extrusion core rod matches, and the outer surface of tapering point and first squeezes
The inner surface going out core rod fits tightly.
In this utility model preferred embodiment, the above-mentioned port heading into pipe and the tapering point of small mould core
Keep the shape and size that match, head into the outer surface of pipe and first to extrude the inner surface of core rod tight
Laminating.
In this utility model preferred embodiment, the above-mentioned pipe that heads into includes the first semi-circular tube and the second half
Pipe, the first semi-circular tube and the second semi-circular tube embed the most each other.
In this utility model preferred embodiment, close first semi-circular tube of above-mentioned first semi-circular tube
Inner surface side is provided with the first boss, the medial surface of the first boss and the inner surface position of the first semi-circular tube
On same circumference.
In this utility model preferred embodiment, close second semi-circular tube of above-mentioned second semi-circular tube
Outer surface side is provided with the second boss, the lateral surface of the second boss and the outer surface position of the second semi-circular tube
On same circumference.
In this utility model preferred embodiment, above-mentioned three layer coextruding device also includes:
It is arranged on the internal shield runner between the first extrusion core rod and the second extrusion core rod；
It is arranged on the insulating barrier runner between the second extrusion core rod and the 3rd extrusion core rod；And
It is arranged on the external shielding layer runner between the 3rd extrusion core rod and device body.
In this utility model preferred embodiment, above-mentioned internal shield flow passage the first extrusion die
Core, insulating barrier flow passage second extrudes core rod, external shielding layer flow passage the 3rd extrusion core rod.
In this utility model preferred embodiment, above-mentioned internal shield runner, insulating barrier runner and outer
Screen layer runner is semi-circular runner.
In this utility model preferred embodiment, above-mentioned first extrusion core rod first extrusion port,
Second extrusion port of the second extrusion core rod and the 3rd extrusion port and three layers of the 3rd extrusion core rod
The line outlet of co-extruder keeps the circle mated each other, and the radius of the first extrusion port with
The radius difference 1-3mm of the second extrusion port, the radius and the 3rd of the second extrusion port extrudes port
Radius difference 2-5mm, the radius of the 3rd extrusion port differs 3-8mm with the radius of line outlet.
Advantageous Effects of the present utility model:
Three layer coextruding device for crosslinked cable of the present utility model is by being removably disposed in
The small mould core of one extrusion die core inner and for small mould core being headed into heading into of the first extrusion die core inner
Cooperation between pipe so that when the conductor of specification carrying out producing will produce, by little
Core rod, accesses the conductor of the next one one or two specification little that will produce continuously, and by heading into
Connection is had the small mould core of conductor to head into the first extrusion die core inner by pipe, it is achieved that three layer coextruding device can
To extrude the cable of adjacent-specification in the case of non-stop-machine, thus reach not shut down quantity-produced mesh
's.Further, accurate small mould core processing technique, it is ensured that small mould core and the perfection of the first extrusion core rod
In conjunction with, do not have loosening, deviation in process of production, it is ensured that the stability of product quality.
This utility model simple in construction, adds the tightest at the first extrusion die in-core of the present utility model
Leakproof fit small mould core and head into pipe, can be achieved with between adjacent-specification conductor not shutting down the most raw
Produce, it is to avoid because shutting down the waste changing the material that mould brings, reduce production cost, improve
Production efficiency.And the three layer coextruding device for crosslinked cable of the present utility model is simple to operate, only
Lead with original after the conductor of the little specification that will produce or two specifications need to be put small mould core
Body welds, and small mould core heads into the first extrusion die core inner just can realize not shutting down by heading into pipe
Produce continuously.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, below will be in embodiment
The required accompanying drawing used is briefly described, it will be appreciated that the following drawings illustrate only this practicality
Some novel embodiment, is therefore not construed as the restriction to scope, skill common for this area
From the point of view of art personnel, on the premise of not paying creative work, it is also possible to obtain it according to these accompanying drawings
The accompanying drawing that he is correlated with.
Fig. 1 is the sectional view of the three layer coextruding device for crosslinked cable of the present utility model；
Fig. 2 is the partial sectional view of the three layer coextruding device for crosslinked cable of the present utility model；
Fig. 3 is the section view of the small mould core of the three layer coextruding device for crosslinked cable of the present utility model
Figure；
Fig. 4 is the partial sectional view of the three layer coextruding device for crosslinked cable of the present utility model；
Fig. 5 is the section view heading into pipe of the three layer coextruding device for crosslinked cable of the present utility model
Figure；
Fig. 6 is the section view heading into pipe of the three layer coextruding device for crosslinked cable of the present utility model
Figure；
Fig. 7 is another embodiment of the three layer coextruding device for crosslinked cable of the present utility model
The sectional view of small mould core；
Fig. 8 is another embodiment of the three layer coextruding device for crosslinked cable of the present utility model
Partial sectional view.
In figure:
Three layer coextruding device 100,200；First extrusion core rod 101；Second extrusion core rod 102；The
Three extrusion core rods 103；Small mould core 104a, 104b；Head into pipe 105a, 105b；Adjusting screw rod 106；
Heat-conducting oil pipes 107；Line inlet port 109；Line outlet 110；Internal shield runner 111；Insulating barrier runner
112；External shielding layer runner 113；Device body 114；Conductor 115；
First extrusion port 201；Second extrusion port 202；3rd extrusion port 203；
Cylindrical end 301；Tapering point 302；
First semi-circular tube 401；Second semi-circular tube 402；First boss 411；Second boss 412；
External screw thread 501.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below will knot
Close the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is a part of embodiment of this utility model, and
It is not all, of embodiment.Generally herein described in accompanying drawing and this utility model embodiment of illustrating
Assembly can be arranged with various different configurations and design.
Therefore, detailed description not purport to the embodiment of the present utility model provided in the accompanying drawings below
Limit claimed scope of the present utility model, but be merely representative of selected reality of the present utility model
Execute example.Based on the embodiment in this utility model, those of ordinary skill in the art are not making creation
Property work premise under the every other embodiment that obtained, broadly fall into the scope of this utility model protection.
It should also be noted that similar label and letter represent similar terms, therefore, one in following accompanying drawing
A certain Xiang Yi the accompanying drawing of denier is defined, then need not it is carried out further in accompanying drawing subsequently
Definition and explanation.
In description of the present utility model, it should be noted that term " on ", D score, " interior ",
Orientation or the position relationship of the instruction such as " outward " they are based on orientation shown in the drawings or position relationship, or
It is the orientation or position relationship usually put during the use of this utility model product, is for only for ease of description
This utility model and simplification describe rather than indicate or imply that the device of indication or element must have spy
Fixed orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model
System.Describe additionally, term " first ", " second ", " the 3rd " etc. are only used for distinguishing, and can not manage
Solve as instruction or hint relative importance.
In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clear and definite regulation and limit
Fixed, term " is arranged ", " connection " should be interpreted broadly, and connects, also for example, it may be fixing
Can be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；
Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two element internals
Connection.For the ordinary skill in the art, can understand that above-mentioned term is at this with concrete condition
Concrete meaning in utility model.
Embodiment 1
Seeing Fig. 1, for the three layer coextruding device 100 of crosslinked cable, it includes the first extrusion core rod
101, second extrusion core rod the 102, the 3rd extrusion core rod 103, small mould core 104a, head into pipe 105a,
Adjusting screw rod 106, heat-conducting oil pipes 107, device body 114, line inlet port 109 and line outlet 110.
First extrusion core rod 101, second extrudes core rod 102 and the 3rd extrusion core rod 103 is put at three layers
On the axis of co-extruder 100.That is, the first extrusion core rod 101, second extrudes core rod 102 and the
The axis of three extrusion core rods 103 coincides with the axis of three layer coextruding device 100.Second extrusion core rod
102 are enclosed in the outside of the first extrusion core rod 101 in discontiguous mode.3rd extrusion core rod 103
The outside of the second extrusion core rod 102 it is enclosed in discontiguous mode.
Small mould core 104a is removably disposed in the inside of the first extrusion core rod 101, small mould core 104a
Outer surface and first extrusion core rod 101 inner surface fit tightly.Small mould core 101 allows to pass through
Conductor allows the conductor volume passed through little than the first extrusion core rod 101.That is, through small mould core 104a
Conductor than one or two specification little of conductor through the first extrusion core rod 101.
Head into pipe 105a internal for being headed into by small mould core 104a to the first extrusion core rod 101.When little
When core rod 104a is brought in the first extrusion core rod 101 with the conductor internal through it, in order to make
Small mould core 104a can with first extrusion core rod 101 fit tightly, need by with small mould core 104a
The pipe 105a that heads into of precision-fit is headed into.
Multiple adjusting screw rods 106 are separately positioned on the both sides of three layer coextruding device 100, i.e. near entering line
The side of mouth 109 and the side of close line outlet 110.Adjusting screw rod 106 is used for controlling conductor and enters
Speed and the complete crosslinked cable extruding operation and formed of three layer coextruding device 100 leave three layers
The speed of co-extruder 100 so that conductor or cable are stably drawn in whole preparation process, and
And remain on the axis of three layer coextruding device 100, without departing from axle center, do not produce and rock, from
And guarantee the quality of product.
Multiple heat-conducting oil pipes 107 are arranged in three layer coextruding device 100 independently of one another, are used for connecting
Temperature controller, realizes even temperature control by flowing through the conduction oil of heat-conducting oil pipes 107.
Three layer coextruding device 100 also includes: be arranged on the first extrusion core rod 101 and the second extrusion core rod
Internal shield runner 111 between 102；It is arranged on the second extrusion core rod 102 and the 3rd extrusion core rod
Insulating barrier runner 112 between 103；Be arranged on the 3rd extrusion core rod 103 and device body 114 it
Between external shielding layer runner 113.
Fig. 2 is the partial sectional view after amplifying on the basis of Fig. 1.As shown in Figure 2, inner shield
Laminar flow road 111 connects the first extrusion core rod 101.Insulating barrier runner 112 connects the second extrusion core rod
102.External shielding layer runner 113 connects the 3rd extrusion core rod 103.Internal shield runner 111, insulation
Laminar flow road 112 and external shielding layer runner 113 are semi-circular runner.And substantially symmetric is distributed in
The both sides of three layer coextruding device 100 axis.
First extrusion port 201, second of the first extrusion core rod 101 is extruded the second of core rod 102 and is squeezed
Go out port 202 and the 3rd extrusion port 203 and three layer coextruding device of the 3rd extrusion core rod 103
The line outlet 110 of 100 keeps the circle mated each other.
Preferably, the radius of the first extrusion port 201 and the radius of the second extrusion port 202 differ
1-3mm.Correspondingly, three layer coextruding device 100 of the present utility model in the crosslinked cable extruded
The thickness of screen layer is 1-3mm.
Preferably, the radius of the second extrusion port 202 and the radius of the 3rd extrusion port 203 differ
2-5mm.Correspondingly, three layer coextruding device 100 of the present utility model the crosslinked cable extruded exhausted
The thickness of edge layer is 2-5mm.
Preferably, the radius of the 3rd extrusion port 203 differs 3-8mm with the radius of line outlet 110.
Correspondingly, three layer coextruding device 100 of the present utility model the external shielding layer of the crosslinked cable extruded
Thickness is 3-8mm.
Seeing Fig. 3, small mould core 104a is to include cylindrical end 301 and the tube structure of tapering point 302.
Seeing Fig. 4, cylindrical end 301 is maintained at the first extrusion port 201 of the first extrusion core rod 101
In.The port depth of the height of cylindrical end 301 and the first extrusion core rod 101 matches.Tapering point
The inner surface of the outer surface of 302 and the first extrusion core rod 101 fits tightly.Head into the end of pipe 105a
Mouthful shape and size matched with the holding of the tapering point 302 of small mould core 104a.Head into pipe 105a's
The inner surface of outer surface and the first extrusion core rod 101 fits tightly.Embodiment as illustrated in FIG. 4
Partial sectional view, first extrudes core rod 101, small mould core 104a and heads into pipe 105a each other with shape
The mode coordinated is in close contact, by the first extrusion inner surface of core rod 101, small mould core 101
Outer surface, the end face of small mould core 101, head into the outer surface of pipe 105a and head into the end of pipe 105a
Face carries out the high accuracy processing of surface smoothness so that do not using any fixing connection each other
The situation of part, reaches seamless contact.Meanwhile, small mould core 104a is same with the size heading into pipe 105a
Sample is processed by high accuracy, is allowed to be in close contact with the first extrusion core rod 101.Pipe 105a will headed into
Time in insertion the first extrusion core rod 101, just contact with each other, do not leave gap.
Fig. 5 is the sectional view along axis heading into pipe 105a of the present utility model.
Fig. 6 is of the present utility model to head into the pipe 105a sectional view along cross section.Can from Fig. 6
Go out, head into pipe 105a and include the first semi-circular tube 401 and the second semi-circular tube 402.First semi-circular tube 401
Embed the most each other with the second semi-circular tube 402.
Its inner surface of tube body side close of first semi-circular tube 401 is provided with the first boss 411.First
The medial surface of boss 411 and the inner surface of the first semi-circular tube 401 flush and keep identical radian.
Second semi-circular tube 402 its outer surface of tube body side is provided with the second boss 412, second
The lateral surface of boss 412 and the outer surface of the second semi-circular tube 402 flush and keep identical radian.
By the first boss 411 and the second boss 412, the first semi-circular tube 401 and the second semi-circular tube 402
Embed each other, and constitute round tube and head into pipe 105a.The pipe 105a that heads into of the present utility model is
Two semicircular pipes, such structure is conducive to when next specification conductor extruded by needs, different needs
By conductor through heading into pipe 105a, and can be directly by two pieces of semicircular pipes, the i.e. first semi-circular tube 401
Fasten each other with the second semi-circular tube 402.The more important thing is, when heading into pipe 105a by small mould core
After 104a heads into the first extrusion core rod 101, conveniently head into pipe 105a and take off from conductor.
The operation principle of the present embodiment:
When the conductor of specification carrying out producing will produce, will then give birth in unwrapping wire region
After the little specification produced or the conductor of little two specifications put small mould core 104a, then by this specification
Conductor welds with the conductor produced.After welding is good, with insulating tape by small mould core 104a
Fix.Small mould core 104a with will carry out leading of an insulating exruded little specification or two specifications
Body enters at the first extrusion port 201 of the first extrusion core rod 101 jointly.As small mould core 104a
During fast entrance the first extrusion core rod 101, fixing adhesive tape is removed, then will head into pipe 105a
At the first extrusion port 201 on small mould core 104a top to the first extrusion core rod 101.Then adjust
Good linear velocity, just can carry out next wanting insulating exruded conductor.
Embodiment 2
The present embodiment is the further improvement on the basis of embodiment 1.Now only improvement part is carried out
Illustrating, other parts explicitly pointed out the most in the present embodiment should be understood to be included in the present embodiment
In.
The present embodiment is mainly to small mould core 104a with head into pipe 105a and made further improvement, specifically
For small mould core 104a is improved with the connected mode heading into pipe 105a.
Seeing Fig. 7, the small mould core 104a for tube structure in embodiment 1 is processed to such as Fig. 5
Shown two pieces.And the opening part at tapering point 302 is provided with external screw thread 501.Cooperating therewith
, as shown in Figure 8, any one end heading into pipe 105b is provided with female thread (not shown).
Small mould core 104b is connected fixing with heading into pipe 105b threadably.
According to the preferred implementation do not shown in figure, the opening part at tapering point 302 is provided with
Female thread, any one end heading into pipe 105b is provided with matched external screw thread.
Preferably, small mould core 104b and the thread connecting mode headed between pipe 105b can be replaced
Become to snap connection mode.
Small mould core 104b is connected fixing with heading into pipe 105b by the present embodiment, it is possible to prevent small mould core from existing
Loosen during production, it is ensured that product quality.
The operation principle of the present embodiment:
When the conductor of specification carrying out producing will produce, will then give birth in unwrapping wire region
After the little specification produced or the conductor of little two specifications put small mould core 104b, then by this specification
Conductor welds with the conductor produced.After welding is good, with insulating tape by small mould core 104b
Fix.Meanwhile, small mould core 104b is connected by the helicitic texture being fitted to each other with heading into pipe 105b
Connect fixing tight.Small mould core 104b, head into pipe 105b and an insulating exruded little specification will be carried out
Or the conductor of two specifications enters at the first extrusion port 201 of the first extrusion core rod 101 jointly.
When small mould core 104b enters the first extrusion core rod 101 soon, fixing adhesive tape is removed, then
The pipe 105b the first extrusion port 201 by small mould core 104b top to the first extrusion core rod 101 will be headed into
Place.Then adjust linear velocity, just can carry out next wanting insulating exruded conductor.
The foregoing is only preferred embodiment of the present utility model, be not limited to this practicality new
Type, for a person skilled in the art, this utility model can have various modifications and variations.All
Within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made,
Within should be included in protection domain of the present utility model.
Claims (10)
1. for the three layer coextruding device of crosslinked cable, it include the first extrusion core rod, second
Extrusion core rod and the 3rd extrusion core rod, it is characterised in that described three layers of feedway also include detachably
Be arranged on the small mould core of described first extrusion die core inner and described for being headed into by described small mould core
First extrusion die core inner head into pipe, described small mould core allows the conductor passed through than described first extrusion
Core rod allows the conductor volume passed through little,
Described first extrusion core rod, described second extrusion core rod and described 3rd extrusion core rod are arranged on institute
State on the axis of three layer coextruding device, and described second extrusion core rod is enclosed in discontiguous mode
The outside of described first extrusion core rod, described 3rd extrusion core rod is enclosed in described in discontiguous mode
The outside of the second extrusion core rod.
Three layer coextruding device for crosslinked cable the most according to claim 1, its feature exists
In, described small mould core is the tube structure including cylindrical end and tapering point, wherein,
Described cylindrical end is maintained in the first extrusion port of described first extrusion core rod, and described circle
The height of styletable matches with the port depth of described first extrusion core rod,
The outer surface of described tapering point fits tightly with the inner surface of described first extrusion core rod.
Three layer coextruding device for crosslinked cable the most according to claim 2, its feature exists
In, described in head into shape and the chi that the described tapering point of the port of pipe and described small mould core keeps matching
Very little, described in head into pipe outer surface and described first extrusion core rod described inner surface fit tightly.
Three layer coextruding device for crosslinked cable the most according to claim 1, its feature exists
In, described in head into pipe and include the first semi-circular tube and the second semi-circular tube, described first semi-circular tube and described the
Two semi-circular tubes embed the most each other.
Three layer coextruding device for crosslinked cable the most according to claim 4, its feature exists
In, it is convex that the inner surface side of close described first semi-circular tube of described first semi-circular tube is provided with first
Platform, the medial surface of described first boss is positioned at same circle with the described inner surface of described first semi-circular tube
Zhou Shang.
Three layer coextruding device for crosslinked cable the most according to claim 5, its feature exists
In, it is convex that the outer surface side of close described second semi-circular tube of described second semi-circular tube is provided with second
Platform, the lateral surface of described second boss is positioned at same circumference with the outer surface of described second semi-circular tube
On.
Three layer coextruding device for crosslinked cable the most according to claim 1, its feature exists
In, described three layer coextruding device also includes:
It is arranged on the internal shield runner between described first extrusion core rod and described second extrusion core rod；
It is arranged on the insulating barrier runner between described second extrusion core rod and described 3rd extrusion core rod；With
And
It is arranged on the external shielding layer runner between described 3rd extrusion core rod and device body.
Three layer coextruding device for crosslinked cable the most according to claim 7, its feature exists
In, described in described internal shield flow passage, first extrudes core rod, described in described insulating barrier flow passage
Second extrudes core rod, the 3rd extrusion core rod described in described external shielding layer flow passage.
Three layer coextruding device for crosslinked cable the most according to claim 7, its feature exists
In, described internal shield runner, described insulating barrier runner and described external shielding layer runner are semi-circular
Runner.
10. according to the three layer coextruding device for crosslinked cable one of claim 1 to 9 Suo Shu,
It is characterized in that, the described first extrusion port of described first extrusion core rod, described second extrusion core rod
The second extrusion port and the 3rd extrusion port and described three-layer co-extruded of described 3rd extrusion core rod
The line outlet of device keeps the circle mated each other, and the radius of described first extrusion port with
The radius difference 1-3mm of described second extrusion port, the radius and described the of described second extrusion port
The radius difference 2-5mm of three extrusion ports, the radius of described 3rd extrusion port and described line outlet
Radius difference 3-8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620360382.3U CN205564396U (en) | 2016-04-26 | 2016-04-26 | A three -layer is crowded device altogether for crosslinked cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620360382.3U CN205564396U (en) | 2016-04-26 | 2016-04-26 | A three -layer is crowded device altogether for crosslinked cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205564396U true CN205564396U (en) | 2016-09-07 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111300794A (en) * | 2020-03-09 | 2020-06-19 | 常州市美华电器有限公司 | Double-color cable three-layer co-extrusion device |
| CN112601648A (en) * | 2018-08-31 | 2021-04-02 | 米其林集团总公司 | Tire tread manufacturing extrusion system with horizontally arranged extrusion barrels |
| CN114474668A (en) * | 2022-03-03 | 2022-05-13 | 浙江元通线缆制造有限公司 | Three-layer co-extrusion machine head, production process thereof and cable produced by adopting process |
| CN114914038A (en) * | 2022-07-18 | 2022-08-16 | 优易电缆(张家港)有限公司 | Double-layer co-extrusion mold and method for cable and cable production equipment |
-
2016
- 2016-04-26 CN CN201620360382.3U patent/CN205564396U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112601648A (en) * | 2018-08-31 | 2021-04-02 | 米其林集团总公司 | Tire tread manufacturing extrusion system with horizontally arranged extrusion barrels |
| CN111300794A (en) * | 2020-03-09 | 2020-06-19 | 常州市美华电器有限公司 | Double-color cable three-layer co-extrusion device |
| CN114474668A (en) * | 2022-03-03 | 2022-05-13 | 浙江元通线缆制造有限公司 | Three-layer co-extrusion machine head, production process thereof and cable produced by adopting process |
| CN114474668B (en) * | 2022-03-03 | 2024-04-05 | 浙江元通线缆制造有限公司 | Three-layer co-extrusion machine head, production process thereof and cable produced by adopting process |
| CN114914038A (en) * | 2022-07-18 | 2022-08-16 | 优易电缆(张家港)有限公司 | Double-layer co-extrusion mold and method for cable and cable production equipment |
| CN114914038B (en) * | 2022-07-18 | 2022-09-20 | 优易电缆(张家港)有限公司 | Double-layer co-extrusion mold and method for cable and cable production equipment |
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Address after: 410600 No. 98 Yinzhou North Road, Jinzhou New District, Ningxiang, Changsha, Hunan Patentee after: HONEYTOM CABLE CO.,LTD. Address before: 410600 No. 98 Yinzhou North Road, Jinzhou New District, Ningxiang, Changsha, Hunan Patentee before: HUNAN HUALITONG CABLE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A three-layer coextrusion device for crosslinked cable Effective date of registration: 20220128 Granted publication date: 20160907 Pledgee: Ningxiang sub branch of Bank of Changsha Co.,Ltd. Pledgor: HONEYTOM CABLE CO.,LTD. Registration number: Y2022980000755 |
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