CN110181793A - A kind of bilayer two-wire system electric wire extrusion head - Google Patents
A kind of bilayer two-wire system electric wire extrusion head Download PDFInfo
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- CN110181793A CN110181793A CN201910594952.3A CN201910594952A CN110181793A CN 110181793 A CN110181793 A CN 110181793A CN 201910594952 A CN201910594952 A CN 201910594952A CN 110181793 A CN110181793 A CN 110181793A
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- component
- die sleeve
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- casing
- mold core
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/154—Coating solid articles, i.e. non-hollow articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
- B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/304—Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
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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
- H01B13/14—Insulating conductors or cables by extrusion
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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
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Manufacturing Of Electric Cables (AREA)
Abstract
The present invention provides a kind of double-deck two-wire system electric wire extrusion head, has technical point that including casing, the mold core component, interior die sleeve component and the outer die casing component that are set in casing with one heart；There is mold core component front end to form two core holes that tubulose holds diameter, and interior die sleeve component and tubulose hold and form layered material mouth in two groups between diameter, and two groups of outer layer material mouths are formed between outer die casing component and interior die sleeve component；Inside and outside die sleeve component is equipped with the first location structure between the inner wall of casing respectively, and the second location structure is equipped between mold core component and interior die sleeve；The mating surface of interior die sleeve component and mold core component and casing is the pre-small post-large conical surface；The preceding both ends of casing further respectively have preceding chocking construction and rear chocking construction.The extrusion of the double-deck two-wire can be carried out simultaneously, and the first, second location structure can prevent from rotating beat between each component, and the conical surface cooperated between interior die sleeve component and mold core component and casing can prevent interior die sleeve component to be moved forward and backward, and ensure that the stability for squeezing out effect.
Description
Technical field
Processing mold technical field is squeezed out the present invention relates to wire and cable, in particular to a kind of double-deck two-wire system electric wire squeezes out
Head.
Background technique
In wire and cable, the periphery of battery core line coats matcoveredn and/or insulating layer, and protective layer and insulating layer are
Pass through extrusion die extrusion；And in wire and cable production, because the concentricity of mold adjusts difficulty, lead to battery core periphery
The protective layer and/or insulating layer thickness of wall are different, on the other hand, due to the different designs of mold extrusion cause protective layer or absolutely
The extrusion effect difference of edge layer is very big, for example the roundness and compactness of protective layer outer wall, core are close in conjunction with insulating layer
Property etc., these are all the technological difficulties in wire and cable production.Some while including insulating layer and external protective layer
In wire and cable production process, in order to reach good extrusion effect, existing way is to first pass through mold to squeeze out outside battery core line
The insulating layer in portion, then outermost protective layer is squeezed out by another mold, this mode equipment cost is higher and production efficiency is low.
A kind of more efficient double-deck electric wire cable extruder head has the stronger market demand.
Summary of the invention
The object of the present invention is to provide a kind of double-deck two-wires of stability and high efficiency to squeeze out head.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of bilayer two-wire system electric wire squeezes out head and including the casing with tubulose installation cavity is installed in the peace with one heart
Mold core component in behaveing affectedly, the interior die sleeve component being sheathed between the mold core component and the installation cavity wall, and assembly
Outer die casing component between the installation cavity front inner wall and the interior die sleeve component；The mold core component has axial and right
The two core holes claimed, and the front end in the core hole forms two groups of symmetrical tubuloses and holds diameter, the front end of the interior die sleeve component
The interior layered material mouth that two groups of annulars are formed between diameter, shape between the outer die casing component and the interior die sleeve component are held with the tubulose
At the outer layer material mouth of two groups of annulars；The outer die casing component and the interior die sleeve component are set between the inner wall of the casing respectively
There is the first location structure for preventing to rotate, the second positioning knot for preventing rotation is equipped between the mold core component and the interior die sleeve
Structure；The mating surface of the interior die sleeve component and the mold core component and the casing inner wall is the big conical surface in the small rear end in front end；
The front end of the casing also has the preceding chocking construction for preventing the outer die casing component axial advancement, and the rear end of the casing has
The rear chocking construction for preventing the mold core component and the interior die sleeve component from moving back.
A kind of embodiment, the casing internal have around the heating liquid recycle stream road that its inner wall is arranged.
A kind of embodiment, the interior die sleeve component include the interior die sleeve of front end and the external shunt device of rear end, the internal model
The mating inner wall in external shunt device front end in the rear end of set, and mating surface is the small conical surface in the big rear end in front end, it is described interior
The third location structure for preventing rotation is additionally provided between die sleeve and the external shunt device；The external shunt device has and the outer layer
The outer layer runner that material mouth communicates.
A kind of embodiment, the third location structure include being dislocatedly distributed around week in the interior die sleeve and the external shunt
Pin shaft fit structure and screw closing component structure between device, the pin shaft fit structure include extending radially out the external shunt device
The pin shaft of inner wall, and the axial groove set on the interior die sleeve rear end, the screw closing component structure include radial sealed described interior
The lock-screw of die sleeve and the external shunt device.
A kind of embodiment, the mold core component include the interior current divider of rear end and the mold core of front end, after the mold core
The mating inner wall in the interior current divider of section, and mating surface is the small conical surface in the big rear end in front end, the mold core with it is described interior
The 4th location structure for preventing rotation is additionally provided between current divider；The interior current divider with the interior layered material mouth in communicating
Laminar flow road.
A kind of embodiment, the outer die casing component include fixed ring and are nested in the mould mouth of the fixed ring inner wall
Portion is equipped with the 5th location structure for preventing rotation between the fixed ring and the mould mouth；The front end of the fixed ring inner wall
Also by being threadedly engaged the regulating nut for abutting the mould mouth front end face, the regulating nut is for finely tuning the mould mouth
With the relative axial position of the fixed ring.
A kind of embodiment, the preceding chocking construction is by being threadedly engaged the front inner wall in the casing and abutting institute
The front end positioning screw cap of outer die casing component front end is stated, the rear chocking construction is by being threadedly engaged in the rear end of the casing
Wall and the rear alignment nut for abutting mold core component rear end.
A kind of embodiment, it is coniform that the tubulose of the mold core component, which holds diameter, and the tubulose holds the front end of diameter
Face stretches out in the front end face of the interior die sleeve component, forms the interior layered material mouth for squeezing tubular type, and the front end of the interior layered material mouth
Face is located at the end face rear of the outer die casing component, forms the outer layer material mouth of squash type.
The section of a kind of embodiment, the interior layered material mouth and the outer layer material mouth is the big taper in the small rear end in front end.
The beneficial effect is that: two symmetrical core holes are arranged in the mold core component and tubulose holds diameter, then pass through institute
It states interior die sleeve component and the outer die casing component forms concentric interior layered material mouth and outer layer material mouth, so that one set of die is in structure
The extrusion of the double-deck two-wire can be carried out simultaneously, and compared to the existing double-deck extrusion process, production efficiency is greatly improved；Described first
Location structure and second location structure can prevent between the casing, mold core component, interior die sleeve component and outer die casing component
Rotate beat, it is ensured that the concentricity of mold；The preceding chocking construction and the rear chocking construction can prevent the external mold respectively
Set component and the mold core component move axially outward, and in the interior die sleeve component and the mold core component and the casing
The mating surface of wall is the big conical surface in the small rear end in front end, and the interior die sleeve component can be prevented to be moved forward and backward, interior in extrusion
The immense pressure of extruded stock will not also be such that interior die sleeve component is moved forward and backward inside and outside die sleeve component, ensure that and squeeze out the steady of effect
It is qualitative.
Detailed description of the invention
The present invention is described in further detail in the following with reference to the drawings and specific embodiments.
Fig. 1 is the schematic diagram of the section structure that head is squeezed out in embodiment；
Fig. 2 is the part decomposition texture schematic diagram that head is squeezed out in embodiment；
Fig. 3 is the overall schematic that head is squeezed out in embodiment；
Fig. 4 is casing and the heating liquid recycle stream road schematic diagram of inside in embodiment.
Wherein, 1, head strut；2, casing；21, installation cavity；22, liquid recycle stream road is heated；3, mold core component；31, mould
Core；311, core hole；312, tubulose holds diameter；32, interior current divider；321, internal layer runner；322, stage portion；4, interior die sleeve component；
41, interior die sleeve；42, external shunt device；421, outer layer runner；5, outer die casing component；51, fixed ring；52, mould mouth；53, spiral shell is adjusted
Cap；61, interior layered material mouth；62, outer layer material mouth；71, the first location structure；72, the second location structure；73, third location structure；
731, pin shaft；732, axial groove；733, lock-screw；74, the 4th location structure；75, the 5th location structure；81, preceding stop knot
Structure；82, rear chocking construction.
Specific embodiment
Below in conjunction with attached drawing, invention is further explained:
It should be noted that front end refers to one end where mould material mouth in this case.
Referring to figs. 1 to Fig. 3, a kind of double-deck two-wire system electric wire squeezes out head, including head strut 1, has tubulose installation cavity
21 casing 2, the mold core component 3 being installed in the installation cavity 21 with one heart are sheathed on the mold core component 3 and the installation cavity
Interior die sleeve component 4 between 21 inner walls, and be assemblied between 21 front inner wall of installation cavity and the interior die sleeve component 4
Outer die casing component 5；The mold core component 3 has axial and symmetrical two core holes 311, and the front end in the core hole 311
It forms two groups of symmetrical tubuloses and holds diameter 312, the front end of the interior die sleeve component 4 and the tubulose hold and form two groups between diameter 312
The interior layered material mouth 61 of annular forms the outer layer material mouth of two groups of annulars between the outer die casing component 5 and the interior die sleeve component 4
62；The outer die casing component 5 and the interior die sleeve component 4 are equipped between the inner wall of the casing 2 respectively prevents the of rotation
One location structure 71 is equipped with the second location structure 72 for preventing rotation between the mold core component 3 and the interior die sleeve 41；It is described
The mating surface of interior die sleeve component 4 and 2 inner wall of the mold core component 3 and the casing is the big conical surface in the small rear end in front end；It is described
The front end of casing 2 also has the preceding chocking construction 81 for preventing 5 axial advancement of outer die casing component, the rear end tool of the casing 2
There is the rear chocking construction 82 for preventing the mold core component 3 and the interior die sleeve component 4 from moving back.
In production, both threads core is each passed through to two core holes 311 of the mold core component 3, outside casing 2 respectively
Inside layered material mouth 61 and outer layer material mouth 62 are fed, to squeeze out the insulating layer and protective layer of electric wire simultaneously；In extrusion process, extruded stock
Pressure is very big, the extruded stock of interior layered material mouth 61 can apply pressure backward to mold core component 3 and to interior die sleeve component 4 apply to
Preceding pressure, and the extruded stock of outer layer material mouth 62 can then apply forward pressure to outer die casing component 5 and apply to interior die sleeve component 4
Add pressure backward, therefore, interior die sleeve component 4 bears two-way pressure simultaneously, is easier to axial fluctuation occur, electric wire is caused to squeeze
The thickness fluctuation between insulating layer and protective layer when out is one of the key factor for influencing to squeeze out effect.In the present solution, described
Mold core component 3 is arranged two symmetrical core holes 311 and tubulose and holds diameter 312, then by the interior die sleeve component 4 and it is described outside
Die sleeve component 5 forms concentric interior layered material mouth 61 and outer layer material mouth 62, so that one set of die can carry out bilayer simultaneously in structure
The extrusion of two-wire, compared to the existing double-deck extrusion process, production efficiency is greatly improved；；First location structure, 71 He
Second location structure 72 can prevent from rotating between the casing 2, mold core component 3, interior die sleeve component 4 and outer die casing component 5
Beat, it is ensured that the concentricity of mold；The preceding chocking construction 81 and the rear chocking construction 82 can prevent the external mold respectively
Set component 5 and the mold core component 3 move axially outward, and the interior die sleeve component 4 and the mold core component 3 and the machine
The mating surface of 2 inner wall of shell is the big conical surface in the small rear end in front end, the cone when interior die sleeve 41 moves forward, with 2 inner wall of casing
Shape mating surface can be increasingly tighter, and when interior die sleeve 41 moves backward, the taper fit face with mold core component 3 can be increasingly tighter,
It is therefore possible to prevent the interior die sleeve component 4 is moved forward and backward, in extrusion, extruded stock is huge inside and outside interior die sleeve component 4
Big pressure will not also be such that interior die sleeve component 4 is moved forward and backward, and ensure that the stability for squeezing out effect.
Fig. 4 is the perspective view of the casing, and a kind of embodiment has the heating being arranged around its inner wall inside the casing 2
Liquid recycle stream road 22.By the dynamic heating of heating liquid recycle stream, Electric heating is compared, internal temperature is more evenly stable, to protect
The stability for squeezing out effect is demonstrate,proved.
A kind of embodiment, the external shunt device 42 of interior die sleeve 41 and rear end of the interior die sleeve component 4 including front end are described interior
The mating inner wall in 42 front end of external shunt device in the rear end of die sleeve 41, and mating surface is the small conical surface in the big rear end in front end,
The third location structure 73 for preventing rotation is additionally provided between the interior die sleeve 41 and the external shunt device 42；The external shunt device 42
With the outer layer runner 421 communicated with the outer layer material mouth 62.Since interior die sleeve component 4 is axially longer, and structure is complicated, precision
It is required that very high, it is very big to be integrally machined difficulty, can significantly reduce difficulty of processing and cost using two-part structure, but can shadow
The two-part stability in front and back is rung, prevents two parts from mutually rotating by setting third location structure 73, and uses front end big
The small mating surface in rear end, interior die sleeve 41 moves forward then can be more and more tighter with the cooperation of external shunt device 42, thus die sleeve 41 in preventing
It moves forward (can be limited backward by the cooperation step of third location structure 73 and external shunt device 42)；
A kind of embodiment, the third location structure 73 include being dislocatedly distributed around week in the interior die sleeve 41 and described outer point
The pin shaft fit structure and screw closing component structure between device 42 are flowed, the pin shaft fit structure includes extending radially out described outer point
The pin shaft 731 of 42 inner wall of device is flowed, and the axial groove 732 set on interior 41 rear end of die sleeve, the screw closing component structure include
The lock-screw 733 of the radial sealed interior die sleeve 41 and the external shunt device 42.Since the stability of interior die sleeve component 4 is whole
One of the key of a die table, and interior die sleeve 41 and 42 separate structure of external shunt device make the stability of interior die sleeve 41 become shadow
The core for ringing entire die table after carrying out installation positioning by pin shaft fit structure, then passes through lock-screw 733 and is consolidated
It is fixed, it can both prevent interior die sleeve 41 current divider 32 in from rotating, it is axial to be also possible to prevent the opposite external shunt device 42 of interior die sleeve 41
Mobile, stability is strong.
A kind of embodiment, the mold core component 3 include the interior current divider 32 of rear end and the mold core 31 of front end, the mold core 31
The mating inner wall in the interior current divider 32 of back segment, and mating surface is the small conical surface in the big rear end in front end, the mold core 31
The 4th location structure 74 for preventing rotation is additionally provided between the interior current divider 32；The interior current divider 32 have with it is described interior
The internal layer runner 321 that layered material mouth 61 communicates.Likewise, mold core component 3 is axially longer, structure is complicated and required precision is high, one
Machine-shaping difficulty is at high cost greatly, is divided into 32 two groups of fit structures of mold core 31 and interior current divider and then significantly reduces difficult processing
Degree, but also will affect the two-part stability in front and back simultaneously, mold core 31 can be prevented relatively interior by the way that the 4th location structure 74 is arranged
Current divider 32 rotates, and the conical surface that mating surface is small using the big rear end in front end, when mold core 31 is by the huge of interior 61 extruded stock of layered material mouth
When big pressure moves backward, the conical surface can be increasingly tighter, to become stable.
A kind of embodiment, the outer die casing component 5 include fixed ring 51 and are nested in 51 inner wall of fixed ring
Mould mouth 52 is equipped with the 5th location structure 75 for preventing rotation between the fixed ring 51 and the mould mouth 52；The fixation
The front end of 51 inner wall of ring also passes through the regulating nut 53 for being threadedly engaged and abutting 52 front end face of mould mouth, the regulating nut
53 for finely tuning the relative axial position of the mould mouth 52 and the fixed ring 51.Pass through the fine-tuning mould of regulating nut 53
Mouth 52 reaches best and squeezes out effect to adjust extrusion pressure.
A kind of embodiment, the preceding chocking construction 81 are by being threadedly engaged in the front inner wall and abutting of the casing 2
The front end positioning screw cap of 5 front end of outer die casing component, the rear chocking construction 82 is by being threadedly engaged in the casing 2
Rear end inner wall and the rear alignment nut for abutting 3 rear end of mold core component.Pass through front end positioning screw cap and rear alignment nut
It locks and the both ends of 2 internal structure of stop casing, not only increases the stability of each component concentricity in the inside of casing 2, also make
It obtains mould structure and assembly is relatively simple.
A kind of embodiment, it is coniform that the tubulose of the mold core component 3, which holds diameter 312, and the tubulose holds diameter 312
Front end face stretches out in the front end face of the interior die sleeve component 4, forms the interior layered material mouth 61 for squeezing tubular type, and the interior layered material mouth
61 front end face is located at the end face rear of the outer die casing component 5, forms the outer layer material mouth 62 of squash type.Squeeze the interior of tubular type
Layered material mouth 61, the uniformity of radial thickness are not influenced by core flexural oscillations, and eccentric adjusting is easy, and the outer layer of squash type
Material mouth 62 makes the plastic layer close structure squeezed out, and appearance is smooth.
The section of a kind of embodiment, the interior layered material mouth 61 and the outer layer material mouth 62 is the big cone in the small rear end in front end
Shape.
Above-mentioned the first location structure 71, the second location structure 72, the 4th location structure 74 and the 5th location structure 75
The pin shaft fit structure in the third location structure 73 can be used to realize, be of course not solely limited to this, for example can also adopt
With modes such as screw closing component structures in such as described third location structure 73, purpose be prevent from relatively rotating along mating surface or
It swings.
The above is not intended to limit the scope of the present invention, and all technical spirits according to the present invention are to above
Any modification, equivalent variations and modification made by embodiment, in the range of still falling within technical solution of the present invention.
Claims (9)
1. a kind of bilayer two-wire system electric wire squeezes out head, it is characterised in that: including the casing with tubulose installation cavity, install with one heart
In the mold core component in the installation cavity, it is sheathed on the mold core component and the interior die sleeve component installed between cavity wall,
And it is assemblied in the outer die casing component between the installation cavity front inner wall and the interior die sleeve component；The mold core component has
Axial and symmetrical two core holes, and the front end in the core hole forms two groups of symmetrical tubuloses and holds diameter, the interior die sleeve group
The front end of part and the tubulose hold the interior layered material mouth that two groups of annulars are formed between diameter, the outer die casing component and the interior die sleeve group
The outer layer material mouth of two groups of annulars is formed between part；The outer die casing component and the interior die sleeve component are respectively and in the casing
It is equipped with the first location structure for preventing rotation between wall, is equipped between the mold core component and the interior die sleeve and prevents the of rotation
Two location structures；The mating surface of the interior die sleeve component and the mold core component and the casing inner wall is that the small rear end in front end is big
The conical surface；The front end of the casing also has the preceding chocking construction for preventing the outer die casing component axial advancement, the casing
Rear end has the rear chocking construction for preventing the mold core component and the interior die sleeve component from moving back.
2. a kind of double-deck two-wire system electric wire according to claim 1 squeezes out head, it is characterised in that: the casing internal tool
Have around the heating liquid recycle stream road of its inner wall setting.
3. a kind of double-deck two-wire system electric wire according to claim 1 squeezes out head, it is characterised in that: the interior die sleeve component
The external shunt device of interior die sleeve and rear end including front end, the rear end of the interior die sleeve are mating in external shunt device front end
Inner wall, and mating surface is the small conical surface in the big rear end in front end, and prevention rotation is additionally provided between the interior die sleeve and the external shunt device
Third location structure；The external shunt device has the outer layer runner communicated with the outer layer material mouth.
4. a kind of double-deck two-wire system electric wire according to claim 3 squeezes out head, it is characterised in that: the third positioning knot
Structure includes the pin shaft fit structure and the sealed knot of screw being dislocatedly distributed between the interior die sleeve and the external shunt device around week
Structure, the pin shaft fit structure include the pin shaft for extending radially out the external shunt device inner wall, and are set to the interior die sleeve rear end
Axial groove, the screw closing component structure includes the lock-screw of the radial sealed interior die sleeve and the external shunt device.
5. a kind of double-deck two-wire system electric wire according to claim 1 squeezes out head, it is characterised in that: the mold core component packet
The interior current divider of rear end and the mold core of front end, the mating inner wall in the interior current divider of the back segment of the mold core are included, and is matched
Conjunction face is the small conical surface in the big rear end in front end, and the 4th positioning knot for preventing rotation is additionally provided between the mold core and the interior current divider
Structure；The interior current divider has the internal layer runner communicated with the interior layered material mouth.
6. a kind of double-deck two-wire system electric wire according to claim 1 squeezes out head, it is characterised in that: the outer die casing component
Including fixed ring and it is nested between the mould mouth of the fixed ring inner wall, the fixed ring and the mould mouth equipped with resistance
The 5th dynamic location structure of rotation stop；The front end of the fixed ring inner wall, which also passes through to be threadedly engaged, abuts the mould mouth front end face
Regulating nut, the regulating nut is used to finely tune the relative axial position of the mould mouth and the fixed ring.
7. a kind of double-deck two-wire system electric wire according to claim 1 squeezes out head, it is characterised in that: the preceding chocking construction
It is described for by being threadedly engaged the front inner wall in the casing and abutting the front end positioning screw cap of outer die casing component front end
Chocking construction is by being threadedly engaged the rear end inner wall in the casing and abutting the rear alignment of mold core component rear end afterwards
Nut.
8. a kind of double-deck two-wire system electric wire according to claim 1 squeezes out head, it is characterised in that: the mold core component
It is coniform that the tubulose, which holds diameter, and the tubulose holds the front end face of diameter and stretches out in the front end face of the interior die sleeve component, is formed
The interior layered material mouth of tubular type is squeezed, and the front end face of the interior layered material mouth is located at the end face rear of the outer die casing component, is formed
The outer layer material mouth of squash type.
9. a kind of double-deck two-wire system electric wire according to claim 8 squeezes out head, it is characterised in that: the interior layered material mouth and
The section of the outer layer material mouth is the big taper in the small rear end in front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910594952.3A CN110181793B (en) | 2019-07-03 | 2019-07-03 | Double-layer double-wire type wire extruder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910594952.3A CN110181793B (en) | 2019-07-03 | 2019-07-03 | Double-layer double-wire type wire extruder head |
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| CN110181793A true CN110181793A (en) | 2019-08-30 |
| CN110181793B CN110181793B (en) | 2024-09-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111452326A (en) * | 2020-05-14 | 2020-07-28 | 国网湖北省电力有限公司十堰供电公司 | A mold for making lightning protection cables |
| CN112372973A (en) * | 2020-07-09 | 2021-02-19 | 仙居县创新机械设备有限公司 | One-out-two-in-two composite double-layer rubber pipe production line |
| CN119446672A (en) * | 2024-08-20 | 2025-02-14 | 惠州市禾信电子有限公司 | A data cable and its manufacturing method and manufacturing system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111452326A (en) * | 2020-05-14 | 2020-07-28 | 国网湖北省电力有限公司十堰供电公司 | A mold for making lightning protection cables |
| CN112372973A (en) * | 2020-07-09 | 2021-02-19 | 仙居县创新机械设备有限公司 | One-out-two-in-two composite double-layer rubber pipe production line |
| CN119446672A (en) * | 2024-08-20 | 2025-02-14 | 惠州市禾信电子有限公司 | A data cable and its manufacturing method and manufacturing system |
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