CN109910262A - A kind of three-layer co-extruding machine head of double-colored four points of insulated cables - Google Patents
A kind of three-layer co-extruding machine head of double-colored four points of insulated cables Download PDFInfo
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- CN109910262A CN109910262A CN201910290328.4A CN201910290328A CN109910262A CN 109910262 A CN109910262 A CN 109910262A CN 201910290328 A CN201910290328 A CN 201910290328A CN 109910262 A CN109910262 A CN 109910262A
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- 239000011810 insulating material Substances 0.000 claims abstract description 87
- 239000004020 conductor Substances 0.000 claims description 77
- 239000012774 insulation material Substances 0.000 claims description 45
- 238000009413 insulation Methods 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims 1
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- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000012467 final product Substances 0.000 abstract description 2
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 13
- 238000001125 extrusion Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
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Abstract
The invention discloses a kind of three-layer co-extruding machine heads of double-colored four points of insulated cables, including casing, outer layer current divider, middle layer current divider, internal layer current divider, plug, plug tuningout bolt, die sleeve seat tuningout bolt, inner mould core, middle mold core, internal layer core, die sleeve to adjust wire ring, die sleeve seat, insulating materials A charging runner, insulating materials B charging runner and sheath and feed runner.Through the above scheme, the present invention has many advantages, such as that structure is simple, simplifies processing technology, improves final product quality, has very high practical value and promotional value in wire and cable production and processing technical field.
Description
Technical field
The present invention relates to wire and cables to produce and process technical field, and three layers of especially a kind of double-colored four points of insulated cables are altogether
Squeeze head.
Background technique
In wires and cables industry, be exclusively used in identification connection ground connection or similar protection purposes insulated wire cores need using
Green/yellow combined color (i.e. yellowish green ground line).Green/yellow combined color insulated wire cores usually are formed using double-colored two points in the prior art,
To meet the needs that power circuit uses.In the occasion more to certain cables, security system is more complex, be grounded as connection,
More green/yellow combined color insulation cables of protection purposes and lightning protection line are easy to obscure, and bring pole to installation, use, maintenance
The earth is inconvenient.Under normal conditions, the insulating layer (insulation sleeve) of conventional yellowish green ground line is by the way of individually producing, surface
Yellow green by the way of coating；After insulation sleeve production molding, insulation sleeve is set on cable conductor, and utilize pyrocondensation
Mode wrap up cable conductor；The production efficiency of the yellowish green ground line produced through the above way is low, and manufacturing cost is higher.
For this purpose, green/yellow combined color insulated wire cores of diversified forms just arise, but it is not exclusively used on the market a variety of
The co-extruding machine head of green/yellow combined color insulated wire cores production of form, and existing conventional co-extruding machine head is also unable to satisfy double-colored four
Divide co-extrusion.As application No. is " 201310713951.9 ", entitled " a kind of rubber cross cable Dual-purpose three-layer co-extrusion machine head "
Chinese invention patent comprising handpiece body, from accomplishing that the right side is successively arranged external shielding layer shunting body, insulating layer shunting body in handpiece body
With internal shield shunting body；Be slidably installed die orifice in external shielding layer shunting body, and be slidably installed die sleeve in insulating layer shunting body, interior screen
Cover the mold core that is slidably installed in layer shunting body；External shielding layer glue-feeder, insulating layer are from left to right successively arranged on handpiece body into glue
Mouthful and internal shield glue-feeder, internal shield glue-feeder be connected to the road internal shield shunting body Nei Jiao, insulating layer glue-feeder with it is exhausted
The connection of the edge layer road shunting body Nei Jiao, external shielding layer glue-feeder are connected to the road external shielding layer shunting body Nei Jiao.The function that the technology is realized
It can be the successively injecting glue extruding of internal shield, insulating layer, outer internal shield.It is generally known that the internal shield of cable, insulating layer and
Outer internal shield is wrapped in outside cable conductor, and is different layers.
Therefore, it is badly in need of proposing a kind of three-layer co-extruding machine head of double-colored four points of insulated cables, to fill up cable insulation
The co-extrusion of double-colored insulating materials improves the productivity effect of green/yellow combined color ground line.
Summary of the invention
In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of three-layer co-extruding machine head of double-colored four points of insulated cables,
The technical solution adopted by the invention is as follows:
A kind of three-layer co-extruding machine head of double-colored four points of insulated cables, including the hollow casing of embedded with conical, along cable conductor
Feedstock direction is inserted into the inner wall taper at the tapered hollow inner and outer surfaces edge of the casing and the tapered hollow of the casing
Match and outer layer current divider that embedded with conical is hollow, the tapered hollow of the outer layer current divider is inserted into along cable conductor feedstock direction
The middle layer that inner and outer surfaces edge is matched with the inner wall taper of the tapered hollow of the outer layer current divider and embedded with conical is hollow point
Device is flowed, the tapered hollow inner and outer surfaces edge and the middle layer point of the middle layer current divider are inserted into along cable conductor feedstock direction
The inner wall taper matching of the tapered hollow of device and the hollow internal layer current divider of embedded with conical are flowed, during built-in cable conductor is perforative
The plug that empty and tapered hollow through the internal layer current divider is arranged, be successively arranged in the tapered hollow for being placed on casing and
It is equipped with hollow inner mould core, middle mold core and internal layer core along cable conductor feedstock direction, be fixedly connected with the front end of the casing,
Along cable conductor feedstock direction be arranged it is hollow, for limiting die sleeve seat of the fixed internal layer core in the tapered hollow of casing,
Sequentially pass through casing, outer layer current divider and the setting of middle layer current divider, for insulating materials A mono- to be divided into two and is delivered to internal model
Relative position between core and middle mold core and by inner mould core be extruded in the insulating materials A on the opposite outer edges of cable conductor into
Stream road sequentially passes through outer layer current divider and the setting of middle layer current divider, for insulating materials B mono- to be divided into two and is delivered to interior
It is extruded on cable conductor between mold core and middle mold core and by inner mould core and intersects laying package cable conductor with insulating materials A
Insulating materials B feed runner, and through casing setting, fed for sheath and be extruded in and be enclosed with by middle mold core
Sheath on the cable conductor of insulating materials A and insulating materials B feeds runner.
The inner mould core is contacted with the forward ends thereof of plug, and middle mold core is contacted with the forward ends thereof of middle layer current divider.
The casing and outer layer current divider, outer layer current divider and middle layer current divider, middle layer current divider and internal layer current divider are equal
It is fixedly connected.
Further, the three-layer co-extruding machine head of double-colored four points of insulated cables, further includes after being sleeved on the plug
Plug on end margin, for being fixed on the internal layer current divider locks flange, is fixed on the front end of the casing, is set in
The outer peripheral die sleeve seat of die sleeve seat locks flange, and is arranged in the die sleeve seat and the built-in electricity for being extruded with sheath
The perforative hollow die sleeve of cable conductor adjusts wire ring.
Further, the three-layer co-extruding machine head of double-colored four points of insulated cables further includes annular uniform intervals through institute
State the setting of internal layer current divider, for several plug tuningout bolts of plug axle center adjustment, and annular uniform intervals are through described
Casing is arranged, for several die sleeve seat tuningout bolts of die sleeve seat axle center adjustment.
Preferably, the casing includes along the laying of cable conductor feedstock direction and integrally formed first cylinder, the second circle
Column, third cylinder and the 4th cylinder, be provided on the 4th cylinder and with die sleeve seat tuningout bolt several moulds correspondingly
Block set tuningout threaded hole, and sequentially pass through first cylinder, the second cylinder, third cylinder and the setting of the 4th cylinder, be used for
Installation outer layer current divider, inner mould core, middle mold core, internal layer core and die sleeve seat and what is be connected to die sleeve seat tuningout threaded hole first lead to
Hole.
The first through hole includes the first bellmouth for sequentially passing through first cylinder, the second cylinder and third cylinder,
The second bellmouth being connected to along cable conductor feedstock direction with first bellmouth, along cable conductor feedstock direction and described the
The third bellmouth of two bellmouths connection, and be connected to third bellmouth, the 7th round hole for installing die sleeve seat；It is described
Outer layer current divider is matched with the first bellmouth taper.
Insulating materials B charging runner include be arranged through the first cylinder and the insulation B that is connected to the first bellmouth into
Material mouth.
The sheath charging runner includes the sheath feed inlet for being arranged through the first cylinder and being connected to the first bellmouth.
Preferably, the outer layer current divider includes setting gradually along cable conductor feedstock direction and the integrally formed 5th
Cylinder, the first tapered pole and the first taper guide portion, and sequentially pass through first tapered pole, the 5th cylinder and the first taper
Guide portion setting and with matched 8th bellmouth of the outer edge taper of middle layer current divider；First tapered pole and the first cone
Shape guide portion is set in the first bellmouth.
The insulating materials A charging runner includes being arranged and being connected to the 8th bellmouth exhausted through the 5th cylinder
Edge A feed inlet.
Insulating materials B charging runner further include be provided on the 5th cylinder, one end and insulation B gating location
Corresponding first Insulation Material flows through slot, the third through-hole for being arranged through the 5th cylinder, being connected to the 8th bellmouth.
Sheath charging runner further include be provided on first tapered pole, with the sheath feed inlet Corresponding matching
The second Insulation Material flow through slot, and be arranged on first tapered pole, for sheath charging is divided equally be delivered in mold core
The first resistance gauge between internal layer core.
Preferably, the middle layer current divider includes setting gradually along cable conductor feedstock direction and the integrally formed 6th
Cylinder, the second tapered pole and the second taper guide portion, and set through the 6th cylinder, the second tapered pole and the second taper guide portion
It sets and the matched fourth hole of outer edge taper with internal layer current divider；The front end in the second taper guide portion and middle mold core
Rear end squeeze and diameter it is equal.
The fourth hole includes the 9th bellmouth set gradually along cable conductor feedstock direction, the tenth bellmouth and
Four round holes；The internal layer current divider is placed in the 9th bellmouth.
Insulating materials A charging runner further include be provided on second tapered pole, one end and insulation A feed inlet position
The third Insulation Material for setting corresponding insulating materials A for receiving insulation A throat-fed flows through slot, is provided with second cone
On shape column, the other end that one end flows through slot with third Insulation Material is connected to, is delivered to shape for insulating materials A mono- to be divided into two
4th Insulation Material of the relative position of column flows through slot and the 5th insulation stream through slot, bores through second tapered pole and with the 9th
Shape hole, which is connected to and feeds, flows through the 6th through-hole that the other end of slot is connected to the 4th Insulation Material, and runs through described second
Tapered pole is simultaneously connected to the 9th bellmouth and feeds the 7th through-hole being connected to the 5th insulation stream through the other end of slot；
6th through-hole is overlapped with the hole mandrel of the 7th through-hole.
Insulating materials B charging runner further include be arranged through second tapered pole and with third through-hole position pair
The fifth hole answered and be overlapped.
Preferably, the internal layer current divider includes setting gradually along cable conductor feedstock direction and the integrally formed 7th
Cylinder, the 8th cylinder, third tapered pole and third taper guide portion, sequentially pass through the 7th cylinder, the 8th cylinder, third tapered pole
With the setting of third taper guide portion, the ladder hole for being arranged plug, and it is connected to the front end of ladder hole, is used for and core
The cooperation spherical surface that the forward ends thereof of stick is contacted and is provided in the third taper guide portion；It is offered on 7th cylinder
Several plug tuningout threaded holes of the central axis of plug are matched and adjusted with plug tuningout bolt.
Insulating materials A charging runner further includes being provided on third tapered pole and, use corresponding with the 6th lead to the hole site
In the first equal subassembly of insulating materials A for the insulating materials A for receiving the conveying of the 6th through-hole, and be provided on third tapered pole,
And the second equal subassembly of insulating materials A of corresponding with the 7th lead to the hole site insulating materials A for receiving the conveying of the 7th through-hole；
The equal subassembly of the first insulating materials A is identical as the structure of the two equal subassemblies of insulating materials A and is laid in third taper relatively
On column.
The equal subassembly of the first insulating materials A includes being provided on third tapered pole and one end is connected to the 6th through-hole
The 6th Insulation Material flow through slot, be provided on the third tapered pole, one end is connected to the other end that the 6th Insulation Material flows through slot,
And the other end is matched with third taper guide portion, for insulating materials A to be divided equally be delivered between inner mould core and middle mold core the
Four-line poem with seven characters to a line edge stream through slot, and be arranged on third tapered pole, for by four-line poem with seven characters to a line edge stream through slot one be divided into two second
Resistance gauge.
The insulating materials B charging runner further includes being provided on third tapered pole and being connected to fifth hole, for inciting somebody to action
Insulating materials B mono- is divided into two and the 8th Insulation Material being delivered in third taper guide portion flows through slot；8th Insulation Material
The insulating materials A transpostion interval package cable conductor that the insulating materials B and four-line poem with seven characters to a line edge stream for flowing through slot conveying are conveyed through slot.
Preferably, the plug includes the plug column being set in plug locking flange and ladder hole, is arranged in plug
The front end of column with cooperation spherical surface and inner mould core squeezes matched core head respectively, and is provided with along cable conductor feedstock direction
In the plug column and core head, it is used for perforative 5th round hole of current supply cable conductor.
Further, the three-layer co-extruding machine head of double-colored four points of insulated cables, further includes along cable conductor feedstock direction
The 7th bellmouth, third round hole and the second round hole being provided in the inner mould core are provided in inner mould core, bore with the 7th
The cylinder of shape hole connection chamfers slot, the 6th bellmouth and the 5th cone being provided in the middle mold core along cable conductor feedstock direction
Shape hole, and it is provided with along cable conductor feedstock direction the 4th bellmouth and the first round hole of the internal layer in-core.
Further, the three-layer co-extruding machine head of double-colored four points of insulated cables further includes setting in plug locking flange
Interior plug locking spring hoodle is provided with the front end of the 4th cylinder, for locking with the die sleeve seat of plug locking flanged joint
Flange connecting hole.
Compared with prior art, the invention has the following advantages:
(1) present invention dexterously uses three layer diverter, and inner mould core, middle mold core and internal layer core are arranged in casing,
Runner is fed by insulating materials A and insulating materials B feeds the double-colored insulating layer of formation space crossings under runner charging and co-extrusion,
The sheath being wrapped in outside double-colored insulating layer furthermore with formation under sheath charging runner charging and co-extrusion；In this way, just can be real
Existing double-colored four points of insulated wire cores and sheath one-pass molding, simplify processing technology, have filled up double-colored insulating layer, shield in field of cables
Cover integrally formed technological gap.
(2) structure of the invention is relatively simple, and the package area of insulating materials A, insulating materials B by insulating materials A into
The size of stream road and insulating materials B charging runner, the specific restriction in position, the double-colored insulated cable of manufacture is not easy counterfeit.
(3) plug tuningout bolt, die sleeve seat tuningout bolt and plug locking spring hoodle is dexterously arranged in the present invention, to protect
Double-colored insulating layer, the thickness of sheath that card is wrapped in cable conductor are uniform, efficiently solve cable because double-colored insulating layer, sheath are thick
Spend that inconsistent to cause insulation weak.
(4) dexterously setting cooperates spherical surface to the present invention in third taper guide portion, and plug front end is arranged to spherical shape
Shape provides spherical surface sliding for tail portion eccentric adjusting, to realize the adjusting of inner mould core, middle mold core and internal layer core, further ensures
Double-colored thickness of insulating layer squeezes uniform.
In conclusion the present invention has many advantages, such as that structure is simple, simplifies processing technology, improves final product quality, in electric wire electricity
Cable, which produces and processes technical field, has very high practical value and promotional value.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to the attached drawing used required in embodiment
It is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as to protection
The restriction of range to those skilled in the art without creative efforts, can also be attached according to these
Figure obtains other relevant attached drawings.
Fig. 1 is diagrammatic cross-section of the invention.
Fig. 2 is stereoscopic schematic diagram (one) of the invention.
Fig. 3 is stereoscopic schematic diagram (two) of the invention.
Fig. 4 is the diagrammatic cross-section of outer layer current divider of the invention.
Fig. 5 is the stereoscopic schematic diagram (one) of outer layer current divider of the invention.
Fig. 6 is the stereoscopic schematic diagram (two) of outer layer current divider of the invention.
Fig. 7 is the diagrammatic cross-section of middle layer current divider of the invention.
Fig. 8 is the stereoscopic schematic diagram (one) of middle layer current divider of the invention.
Fig. 9 is the stereoscopic schematic diagram (two) of middle layer current divider of the invention.
Figure 10 is the stereoscopic schematic diagram (one) of internal layer current divider of the invention.
Figure 11 is the stereoscopic schematic diagram (two) of internal layer current divider of the invention.
Figure 12 is the diagrammatic cross-section of internal layer current divider of the invention.
Figure 13 is the stereoscopic schematic diagram (one) of casing of the invention.
Figure 14 is the stereoscopic schematic diagram (two) of casing of the invention.
Figure 15 is the diagrammatic cross-section of casing of the invention.
Figure 16 is the stereoscopic schematic diagram of inner mould core of the invention, middle mold core and internal layer core.
Figure 17 is the diagrammatic cross-section of inner mould core of the invention, middle mold core and internal layer core.
Figure 18 is the stereoscopic schematic diagram of plug of the invention.
Figure 19 is the diagrammatic cross-section of plug of the invention.
Figure 20 is cross-section of cable schematic diagram of the invention.
In above-mentioned attached drawing, the corresponding component names of appended drawing reference are as follows:
1- casing, 2- outer layer current divider, the middle layer 3- current divider, 4- internal layer current divider, 5- plug, 6- plug lock flange,
7- plug locking spring hoodle, 8- plug tuningout bolt, 9- cooperate spherical surface, 10- die sleeve seat tuningout bolt, 11- inner mould core, 12-
Middle mold core, 13- internal layer core, 14- die sleeve adjusting wire ring, 15- die sleeve seat, 16- die sleeve seat locking flange, 17- insulation B feed inlet,
18- insulation A feed inlet, 19- sheath feed inlet, the first cylinder of 101-, the second cylinder of 102-, 103- third cylinder, 104- the 4th
Cylinder, 105- first through hole, 108- die sleeve seat tuningout threaded hole, 110- die sleeve seat lock flange connecting hole, and 111- second is round
Hole, 112- third round hole, the 7th bellmouth of 113-, 114- cylinder chamfer slot, the 5th bellmouth of 121-, the 6th taper of 122-
Hole, the first round hole of 131-, the 4th bellmouth of 132-, the first tapered pole of 201-, the 5th cylinder of 202-, the 8th bellmouth of 203-,
The first arc notch of 204- portion, 206- third through-hole, the first Insulation Material of 207- flow through slot, and the second Insulation Material of 208- flows through slot,
The first resistance gauge of 209-, 210- the first taper guide portion, the 6th cylinder of 301-, the second tapered pole of 302-, 303- fourth hole,
304- third Insulation Material flows through slot, and the 4th Insulation Material of 305- flows through slot, and 306- the 5th insulate stream through slot, 307- fifth hole,
The 6th through-hole of 308-, the 7th through-hole of 309-, 310- the second taper guide portion, the 7th cylinder of 401-, the 8th cylinder of 402-, 403-
Triconic column, 404- ladder hole, 405- plug tuningout threaded hole, the 6th Insulation Material of 406- flow through slot, the 7th Insulation Material of 407-
Flow through slot, the second resistance gauge of 408-, 409- third taper guide portion, the 8th Insulation Material of 410- flows through slot, 501- core head, 502-
Plug column, the 5th round hole of 503-, the 6th round hole of 504-, the first bellmouth of 1051-, the second bellmouth of 1052-, 1053-
Triconic hole, the 7th round hole of 1054-, the 9th bellmouth of 3031-, the tenth bellmouth of 3032-, the 4th round hole of 3033-.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application apparent, with reference to the accompanying drawings and examples to the present invention
It is described further, embodiments of the present invention include but is not limited to the following example.Based on the embodiment in the application, ability
Domain those of ordinary skill every other embodiment obtained without making creative work, belongs to the application
The range of protection.
Embodiment
As shown in fig. 1 to figure 20, it the present embodiment provides a kind of three-layer co-extruding machine head of double-colored four points of insulated cables, needs
Bright, the serial numbers term such as " first " described in the present embodiment, " second " is only used for distinguishing same item, cannot be understood as pair
The specific restriction of protection scope.In addition, the directionalities such as " bottom " described in the present embodiment, " top ", " edge ", " center "
Term is illustrated based on the drawings.Moreover, the structure for the product that the present invention protects is constituted, can be according to cable conductor
Corresponding size is designed, just it will not go into details herein.
In the present embodiment, which includes the hollow casing 1 of embedded with conical, along cable conductor feedstock direction
The tapered hollow inner and outer surfaces edge for being inserted into the casing 1 matches and interior with the inner wall taper of the tapered hollow of the casing 1
The outer layer current divider 2 for setting tapered hollow, the tapered hollow for being inserted into the outer layer current divider 2 along cable conductor feedstock direction are inside and outside
The middle layer current divider that marginal surface is matched with the inner wall taper of the tapered hollow of the outer layer current divider 2 and embedded with conical is hollow
3, the tapered hollow inner and outer surfaces edge of the middle layer current divider 3 is inserted into along cable conductor feedstock direction and the middle layer shunts
The internal layer current divider 4 that the inner wall taper of the tapered hollow of device 3 matches and embedded with conical is hollow, during built-in cable conductor is perforative
The plug 5 that empty and tapered hollow through the internal layer current divider 4 is arranged, is successively arranged the tapered hollow for being placed on casing 1
It is interior and be equipped with hollow inner mould core 11, middle mold core 12 and internal layer core 13 along cable conductor feedstock direction, with the casing 1
Front end is fixedly connected, along cable conductor feedstock direction be arranged it is hollow, for limiting the fixed internal layer core 13 in the taper of casing 1
Die sleeve seat 15 in hollow sequentially passes through casing 1, outer layer current divider 2 and the setting of middle layer current divider 3, is used for insulating materials A mono-
It is divided into two and the relative position that is delivered between inner mould core 11 and middle mold core 12 and cable conductor is extruded in by inner mould core 11
Insulating materials A on opposite outer edges feeds runner, sequentially passes through outer layer current divider 2 and the setting of middle layer current divider 3, for will be exhausted
Edge material B mono- is divided into two and is delivered between inner mould core 11 and middle mold core 12 and is extruded on cable conductor by inner mould core 11
And intersect the insulating materials B charging runner for laying package cable conductor with insulating materials A, through the casing 1 setting, for protecting
Set feeds and is extruded in the sheath feeding flow being enclosed on the cable conductor of insulating materials A and insulating materials B by middle mold core 12
Road is sleeved on the back edge of the plug 5, the plug locking flange 6 for being fixed on the internal layer current divider 4, Gu
The outer peripheral die sleeve seat locking flange 16 for being scheduled on the front end of the casing 1, being set in die sleeve seat 15, is arranged in the die sleeve seat
In 15 and the perforative hollow die sleeve of the built-in cable conductor for being extruded with sheath adjusts wire ring 14, and annular uniform intervals run through
The internal layer current divider 4 is arranged, for several plug tuningout bolts 8 of 5 axle center of plug adjustment, and annular uniform intervals are through described
Casing 1 is arranged, for several die sleeve seat tuningout bolts 10 of 15 axle center of die sleeve seat adjustment, is provided with along cable conductor feedstock direction
The 7th bellmouth 113, third round hole 112 and the second round hole 111 in the inner mould core 11, be provided in inner mould core 11,
The cylinder beveling slot 114 being connected to the 7th bellmouth 113, the be provided with along cable conductor feedstock direction in the middle mold core 12
Six bellmouths 122 and the 5th bellmouth 121 are provided with the 4th bellmouth in the internal layer core 13 along cable conductor feedstock direction
132 and first round hole 131, the plug locking spring hoodle 7 in plug locking flange 6 is set, and is provided with the 4th circle
The front end of column 104, the die sleeve seat for connecting with plug locking flange 6 lock flange connecting hole 110.Wherein, the inner mould core
11 contact with the forward ends thereof of plug 5, and middle mold core 12 is contacted with the forward ends thereof of middle layer current divider 3, and casing 1 and outer layer point
Stream device 2, outer layer current divider 2 are fixedly connected with middle layer current divider 3, middle layer current divider 3 and internal layer current divider 4.
Present embodiment discloses the specific structures of casing 1, as shown in FIG. 13 to 15 comprising along cable conductor charging side
To laying and integrally formed first cylinder 101, the second cylinder 102, third cylinder 103 and the 4th cylinder 104, it is provided with institute
State on the 4th cylinder 104 and with the one-to-one several die sleeve seat tuningout threaded holes 108, Yi Jiyi of die sleeve seat tuningout bolt 10
It is secondary to divide through first cylinder 101, the second cylinder 102, third cylinder 103 and the setting of the 4th cylinder 104, for installing outer layer
First for flowing device 3, inner mould core 11, middle mold core 12, internal layer core 13 and die sleeve seat 15 and being connected to die sleeve seat tuningout threaded hole 108
Through-hole 105.Wherein, first through hole 105 includes sequentially passing through first cylinder 101, the second cylinder 102 and third cylinder 103
The first bellmouth 1051, the second bellmouth 1052 being connected to along cable conductor feedstock direction with first bellmouth 1051,
The third bellmouth 1053 being connected to along cable conductor feedstock direction with second bellmouth 1052, and with third bellmouth
1053 connections, the 7th round hole 1054 for installing die sleeve seat 15；1051 taper of the outer layer current divider 2 and the first bellmouth
Matching.
Present embodiment discloses the specific structures of outer layer current divider 2, as shown in Figures 4 to 6 comprising along cable conductor into
Material direction is set gradually and integrally formed 5th cylinder 202, the first tapered pole 201 and the first taper guide portion 210, and
Sequentially pass through first tapered pole 201, the 5th cylinder 202 and the first taper guide portion 210 setting and with middle layer current divider 3
Matched 8th bellmouth 203 of outer edge taper；First tapered pole 201 and the first taper guide portion 210 are set in
In one bellmouth 1051.
At the same time, the present embodiment also discloses the specific structure of middle layer current divider 3, as shown in Figure 7 to 9 comprising
It is set gradually along cable conductor feedstock direction and integrally formed 6th cylinder 301, the second tapered pole 302 and the second taper is led
Material portion 310, and shunt through the 6th cylinder 301, the second tapered pole 302 and the setting of the second taper guide portion 310 and with internal layer
The matched fourth hole 303 of the outer edge taper of device 4；The front end in the second taper guide portion 310 and the rear end of middle mold core 12
It squeezes and diameter is equal.Wherein, which includes the 9th bellmouth set gradually along cable conductor feedstock direction
3031, the tenth bellmouth 3032 and the 4th round hole 3033；The internal layer current divider 4 is placed in the 9th bellmouth 3031.
Moreover, the present embodiment also discloses internal layer current divider 4, as shown in Figure 10 to Figure 12 comprising leads along cable
Body feedstock direction is set gradually and integrally formed 7th cylinder 401, the 8th cylinder 402, third tapered pole 403 and third cone
Shape guide portion 409 sequentially passes through the 7th cylinder 401, the 8th cylinder 402, third tapered pole 403 and third taper guide portion 409
It is arranged, the ladder hole 404 for being arranged plug 5, and is connected to the front end of ladder hole 404, for the front end with plug 5
The cooperation spherical surface 9 for squeezing contact and being provided in the third taper guide portion 409；Offered on 7th cylinder 401 with
Several plug tuningout threaded holes 405 of the central axis of the matching of plug tuningout bolt 8 and adjustment plug 5.
In the present embodiment, which includes the plug column being set in plug locking flange 6 and ladder hole 404
502, be arranged in plug column 502 front end, respectively with cooperation spherical surface 9 and inner mould core 11 squeeze matched core head 501, Yi Jiyan
Cable conductor feedstock direction is provided in the plug column 502 and core head 501, is round for current supply cable conductor the perforative 5th
Hole 503.
In the present embodiment, in order to realize insulating materials A, insulating materials B divide equally and space crossings be wrapped in cable conductor
On, insulating materials A is dexterously set and feeds runner and insulating materials B charging runner.Wherein, insulating materials A feeds runner
Including being arranged through the 5th cylinder 202 and the insulation A feed inlet 18 that is connected to the 8th bellmouth 203, it is provided with described the
On two tapered poles 302, one end with insulation 18 position of A feed inlet it is corresponding, for receives insulate A feed inlet 18 charging insulating materials
The third Insulation Material of A flows through slot 304, is provided on second tapered pole 302, one end flows through slot 304 with third Insulation Material
Other end connection, the 4th Insulation Material for insulating materials A mono- to be divided into the relative position that two are delivered to shape column 302 flows through
Slot 305 and the 5th insulation stream through second tapered pole 302 and are connected to and feed with the 9th bellmouth 3031 through slot 306
Flow through the 6th through-hole 308 that the other end of slot 305 is connected to the 4th Insulation Material, through second tapered pole 302 and with
The 7th through-hole 309 that the connection of 9th bellmouth 3031 and charging are connected to the 5th insulation stream through the other end of slot 306,
It is provided on third tapered pole 403 and insulation material corresponding with 308 position of the 6th through-hole, for receiving the conveying of the 6th through-hole 308
Expect A the first equal subassembly of insulating materials A, and be provided on third tapered pole 403 and it is corresponding with 309 position of the 7th through-hole,
For receiving the second equal subassembly of insulating materials A of the insulating materials A of the 7th through-hole 309 conveying.
In the present embodiment, the equal subassembly of first insulating materials A it is identical as the structure of the two equal subassemblies of insulating materials A,
And it is laid on third tapered pole 403 relatively.Wherein, the equal subassembly of first insulating materials A includes being provided with third tapered pole
The 6th Insulation Material that on 403 and one end is connected to the 6th through-hole 308 flows through slot 406, be provided on the third tapered pole 403,
One end is connected to the other end that the 6th Insulation Material flows through slot 406 and the other end is matched with third taper guide portion 409, for inciting somebody to action
Insulating materials A divides equally the four-line poem with seven characters to a line edge stream being delivered between inner mould core 11 and middle mold core 12 through slot 407, and is arranged in third
The second resistance gauge 408 on tapered pole 403, for four-line poem with seven characters to a line edge stream to be divided into two through slot 407.In addition, the 6th through-hole
308 are overlapped with the hole mandrel of the 7th through-hole 309.
When in use, insulating materials A enters from insulation A feed inlet 18, and flows through slot 304 through third Insulation Material and be divided into
Two, which are delivered to the 4th Insulation Material, flows through slot 305 and the 5th insulation stream through slot 306；Wherein, slot 305 is flowed through through the 4th Insulation Material
Insulation A flows through slot 406 by the 6th Insulation Material that the 6th through-hole 308 flow to the first equal subassembly of insulating materials A, finally from third
Taper guide portion 409 is injected between inner mould core 11 and middle mold core 12；Similarly, logical through the 5th insulation A of the insulation stream through slot 306
It crosses the 7th through-hole 309 and flow to the 6th Insulation Material of the second equal subassembly of insulating materials A and flow through slot 406, finally led from third taper
Material portion 409 is injected between inner mould core 11 and middle mold core 12.Through the above scheme, insulation A is divided into two, and is wrapped in electricity relatively
On cable conductor.
In the present embodiment, insulating materials B feed runner include through the first cylinder 101 be arranged and with the first taper
Hole 1051 be connected to insulation B feed inlet 17, be provided on the 5th cylinder 202, one end with insulate 17 position of B feed inlet it is corresponding
The first Insulation Material flow through slot 207, lead to through the 5th cylinder 202 setting, the third that is connected to the 8th bellmouth 203
Hole 206, through second tapered pole 302 be arranged and with 206 position of third through-hole it is corresponding and coincidence fifth hole 307, with
And it is provided on third tapered pole 403 and is connected to fifth hole 307, for insulating materials B mono- to be divided into two and is delivered to
The 8th Insulation Material in third taper guide portion 409 flows through slot 410.
When in use, insulation B enters from insulation B feed inlet 17, successively flows through slot 207, third through-hole through the first Insulation Material
206, fifth hole 307 are finally divided into two by one and are delivered in third taper guide portion 409.Wherein, the 8th insulation stream
The insulating materials A transpostion interval package cable that the insulating materials B conveyed through slot 410 is conveyed with four-line poem with seven characters to a line edge stream through slot 407 is led
Body, finished product are as shown in figure 20.
In addition, the sheath charging runner of the present embodiment is fed and is wrapped in outside double-colored insulation sleeve for sheath comprising
The sheath feed inlet 19 for being arranged through the first cylinder 101 and being connected to the first bellmouth 1051, is provided with first tapered pole
On 201 and the second Insulation Material of 19 Corresponding matching of sheath feed inlet flows through slot 208, and is arranged in first taper
On column 201, for the first resistance gauge 209 being delivered between middle mold core 12 and internal layer core 13 to be divided equally in sheath charging.Sheath into
Material enters from sheath feed inlet 19, and is uniformly delivered between middle mold core 12 and internal layer core 13, in the squeezing action of middle mold core 12
Under, double-colored insulation sleeve is wrapped up to realize.
In conclusion the present invention has filled up the integrally formed technological gap of double-colored insulating layer, sheath in field of cables, simplify
Processing technology.It can be said that compared with prior art, there is substantive distinguishing features outstanding and significant progress, produced in cable
Processing technique field has a vast market foreground.
Above-described embodiment is merely a preferred embodiment of the present invention, and it is not intended to limit the protection scope of the present invention, as long as using
Design principle of the invention, and the non-creative variation worked and made is carried out on this basis, it should belong to of the invention
Within protection scope.
Claims (10)
1. a kind of three-layer co-extruding machine head of double-colored four points of insulated cables, which is characterized in that including the hollow casing of embedded with conical
(1), the tapered hollow inner and outer surfaces edge of the casing (1) and the cone of the casing (1) are inserted into along cable conductor feedstock direction
The outer layer current divider (2) that the hollow inner wall taper of shape matches and embedded with conical is hollow, described in the insertion of cable conductor feedstock direction
The inner wall taper of the tapered hollow of the tapered hollow inner and outer surfaces edge of outer layer current divider (2) and the outer layer current divider (2)
Match and middle layer current divider (3) that embedded with conical is hollow, the cone of the middle layer current divider (3) is inserted into along cable conductor feedstock direction
The hollow inner and outer surfaces edge of shape is matched with the inner wall taper of the tapered hollow of the middle layer current divider (3) and embedded with conical is hollow
Internal layer current divider (4), built-in cable conductor it is perforative hollow and through the internal layer current divider (4) tapered hollow be arranged
Plug (5), be successively arranged and be placed in the tapered hollow of casing (1) and be equipped with along cable conductor feedstock direction hollow
Inner mould core (11), middle mold core (12) and internal layer core (13) are fixedly connected with the front end of the casing (1), feed along cable conductor
Direction setting is hollow, for limiting die sleeve seat (15) of the fixed internal layer core (13) in the tapered hollow of casing (1), successively
Through the setting of casing (1), outer layer current divider (2) and middle layer current divider (3), for insulating materials A mono- to be divided into two and is conveyed
The opposing outer of cable conductor is extruded in the relative position between inner mould core (11) and middle mold core (12) and by inner mould core (11)
Insulating materials A on edge feeds runner, sequentially passes through outer layer current divider (2) and middle layer current divider (3) setting, is used for insulation material
Material B mono- is divided into two and is delivered between inner mould core (11) and middle mold core (12) and is extruded in cable conductor by inner mould core (11)
Insulating materials B charging runner that is upper and intersecting laying package cable conductor with insulating materials A, and set through the casing (1)
It sets, feed for sheath and be extruded on the cable conductor for being enclosed with insulating materials A and insulating materials B by middle mold core (12)
Sheath feeds runner；
The inner mould core (11) contacts with the forward ends thereof of plug (5), and the front end of middle mold core (12) and middle layer current divider (3) is squeezed
Press contacts；
The casing (1) and outer layer current divider (2), outer layer current divider (2) and middle layer current divider (3), middle layer current divider (3) with it is interior
Layer current divider (4) is fixedly connected with.
2. the three-layer co-extruding machine head of the double-colored four points of insulated cables of one kind according to claim 1, which is characterized in that further include
It is sleeved on the back edge of the plug (5), plug locking flange (6) for being fixed on the internal layer current divider (4),
Outer peripheral die sleeve seat locking flange (16) for being fixed on the front end of the casing (1), being set in die sleeve seat (15), and setting
In the die sleeve seat (15) and the perforative hollow die sleeve of the built-in cable conductor for being extruded with sheath adjusts wire ring (14).
3. the three-layer co-extruding machine head of the double-colored four points of insulated cables of one kind according to claim 1, which is characterized in that further include
Annular uniform intervals are arranged, for several plug tuningout bolts of plug (5) axle center adjustment through the internal layer current divider (4)
(8), and annular uniform intervals are arranged, for several die sleeve seat tune of die sleeve seat (15) axle center adjustment through the casing (1)
Inclined bolt (10).
4. the three-layer co-extruding machine head of the double-colored four points of insulated cables of one kind according to claim 3, which is characterized in that the machine
Shell (1) includes along the laying of cable conductor feedstock direction and integrally formed first cylinder (101), the second cylinder (102), third
Cylinder (103) and the 4th cylinder (104), be provided on the 4th cylinder (104) and with die sleeve seat tuningout bolt (10) one by one
Corresponding several die sleeve seat tuningout threaded holes (108), and sequentially pass through first cylinder (101), the second cylinder (102),
Third cylinder (103) and the 4th cylinder (104) setting, for install outer layer current divider (3), inner mould core (11), middle mold core (12),
Internal layer core (13) and die sleeve seat (15) and the first through hole (105) being connected to die sleeve seat tuningout threaded hole (108)；
The first through hole (105) includes sequentially passing through first cylinder (101), the second cylinder (102) and third cylinder
(103) the first bellmouth (1051), the second cone being connected to along cable conductor feedstock direction with first bellmouth (1051)
Shape hole (1052), the third bellmouth (1053) being connected to along cable conductor feedstock direction with second bellmouth (1052), with
And it is connected to third bellmouth (1053), the 7th round hole (1054) for installing die sleeve seat (15)；The outer layer current divider
(2) it is matched with the first bellmouth (1051) taper；
The insulating materials B charging runner includes being arranged through the first cylinder (101) and being connected to the first bellmouth (1051)
It insulate B feed inlet (17)；
The sheath charging runner includes the sheath for being arranged through the first cylinder (101) and being connected to the first bellmouth (1051)
Feed inlet (19).
5. the three-layer co-extruding machine head of the double-colored four points of insulated cables of one kind according to claim 4, which is characterized in that described outer
Layer current divider (2) includes setting gradually along cable conductor feedstock direction and integrally formed 5th cylinder (202), the first taper
Column (201) and the first taper guide portion (210), and sequentially pass through first tapered pole (201), the 5th cylinder (202) and
First taper guide portion (210) setting and with matched 8th bellmouth (203) of the outer edge taper of middle layer current divider (3)；Institute
It states the first tapered pole (201) and the first taper guide portion (210) is set in the first bellmouth (1051)；
The insulating materials A charging runner includes being arranged through the 5th cylinder (202) and connecting with the 8th bellmouth (203)
Logical insulation A feed inlet (18)；
Insulating materials B charging runner further include be provided on the 5th cylinder (202), one end and insulation B feed inlet
(17) corresponding first Insulation Material in position flows through slot (207), through the 5th cylinder (202) setting and the 8th taper
The third through-hole (206) of hole (203) connection；
The sheath charging runner further includes being provided on first tapered pole (201), being right with the sheath feed inlet (19)
It answers matched second Insulation Material to flow through slot (208), and is arranged on first tapered pole (201), for feeding sheath
The first resistance gauge (209) being respectively delivered between middle mold core (12) and internal layer core (13).
6. the three-layer co-extruding machine head of the double-colored four points of insulated cables of one kind according to claim 5, which is characterized in that in described
Layer current divider (3) includes setting gradually along cable conductor feedstock direction and integrally formed 6th cylinder (301), the second taper
Column (302) and the second taper guide portion (310), and run through the 6th cylinder (301), the second tapered pole (302) and the second taper
Guide portion (310) setting and the matched fourth hole of outer edge taper (303) with internal layer current divider (4)；Second taper
The front end in guide portion (310) is squeezed with the rear end of middle mold core (12) and diameter is equal；
The fourth hole (303) includes the 9th bellmouth (3031) set gradually along cable conductor feedstock direction, the tenth cone
Shape hole (3032) and the 4th round hole (3033)；The internal layer current divider (4) is placed in the 9th bellmouth (3031)；
Insulating materials A charging runner further include be provided on second tapered pole (302), one end and insulation A feed inlet
(18) the third Insulation Material of the corresponding insulating materials A for receiving insulation A feed inlet (18) charging in position flows through slot (304), opens
It is located on second tapered pole (302), one end flows through the other end of slot (304) with third Insulation Material and is connected to, for will be exhausted
The 4th Insulation Material that edge materials A one is divided into the relative position that two are delivered to shape column (302) flows through slot (305) and the 5th Insulation Material
Slot (306) are flowed through, be connected to through second tapered pole (302) and with the 9th bellmouth (3031) and are fed and the described 4th
Insulation Material flow through slot (305) the other end connection the 6th through-hole (308), and through second tapered pole (302) and with
The 7th through-hole that the connection of 9th bellmouth (3031) and charging are connected to the 5th insulation stream through the other end of slot (306)
(309)；6th through-hole (308) is overlapped with the hole mandrel of the 7th through-hole (309)；
Insulating materials B charging runner further include be arranged through second tapered pole (302) and with third through-hole (206)
The fifth hole (307) position correspondence and be overlapped.
7. the three-layer co-extruding machine head of the double-colored four points of insulated cables of one kind according to claim 6, which is characterized in that in described
Layer current divider (4) includes setting gradually along cable conductor feedstock direction and integrally formed 7th cylinder (401), the 8th cylinder
(402), third tapered pole (403) and third taper guide portion (409), sequentially pass through the 7th cylinder (401), the 8th cylinder
(402), third tapered pole (403) and third taper guide portion (409) setting, the ladder hole for being arranged plug (5)
(404), it and with the front end of ladder hole (404) is connected to, is described for contacting and being provided with the forward ends thereof of plug (5)
Cooperation spherical surface (9) in third taper guide portion (409)；It is offered on 7th cylinder (401) and plug tuningout bolt (8)
Several plug tuningout threaded holes (405) of the central axis of matching and adjustment plug (5)；
Insulating materials A charging runner further include be provided on third tapered pole (403) and with the 6th through-hole (308) position
The first equal subassembly of insulating materials A corresponding, for receiving the insulating materials A that the 6th through-hole (308) conveys, and it is provided with the
On triconic column (403) and it is corresponding with the 7th through-hole (309) position, for receives the 7th through-hole (309) convey insulating materials
The second equal subassembly of insulating materials A of A；The structure of first insulating materials the A equal subassembly and the two equal subassemblies of insulating materials A
It is identical and opposite be laid on third tapered pole (403)；
The equal subassembly of the first insulating materials A includes being provided on third tapered pole (403) and one end and the 6th through-hole
(308) the 6th Insulation Material being connected to flows through slot (406), is provided on the third tapered pole (403), one end and the 6th Insulation Material
The other end connection and the other end for flowing through slot (406) are matched with third taper guide portion (409), for dividing equally insulating materials A
The four-line poem with seven characters to a line edge stream between inner mould core (11) and middle mold core (12) is delivered to through slot (407), and is arranged in third tapered pole
(403) the second resistance gauge (408) on, for four-line poem with seven characters to a line edge stream to be divided into two through slot (407) one；
Insulating materials B charging runner further include be provided on third tapered pole (403) and be connected to fifth hole (307),
For insulating materials B mono- being divided into two and the 8th Insulation Material being delivered in third taper guide portion (409) flows through slot
(410)；The insulating materials B that 8th Insulation Material flows through slot (410) conveying conveys with four-line poem with seven characters to a line edge stream through slot (407) exhausted
Edge materials A transpostion interval wraps up cable conductor.
8. the three-layer co-extruding machine head of the double-colored four points of insulated cables of one kind according to claim 7, which is characterized in that the core
Stick (5) includes the plug column (502) being set in plug locking flange (6) and ladder hole (404), is arranged in plug column
(502) front end, respectively with cooperation spherical surface (9) and the matched core head (501) of inner mould core (11) extruding, and along cable conductor
Feedstock direction is provided in the plug column (502) and core head (501), for perforative 5th round hole of current supply cable conductor
(503)。
9. the three-layer co-extruding machine head of the double-colored four points of insulated cables of one kind according to claim 1, which is characterized in that further include
The 7th bellmouth (113), the third round hole (112) and being provided with along cable conductor feedstock direction in the inner mould core (11)
Two round holes (111), cylinder beveling slot (114) for being provided in inner mould core (11), being connected to the 7th bellmouth (113), along electricity
Cable conductor feedstock direction is provided with the 6th bellmouth (122) and the 5th bellmouth (121) in the middle mold core (12), Yi Jiyan
Cable conductor feedstock direction is provided with the 4th bellmouth (132) and the first round hole (131) in the internal layer core (13).
10. the three-layer co-extruding machine head of the double-colored four points of insulated cables of one kind according to claim 4, which is characterized in that also wrap
Plug locking spring hoodle (7) of the setting in plug locking flange (6) is included, the front end of the 4th cylinder (104) is provided with, is used for
Die sleeve seat locking flange connecting hole (110) being connect with plug locking flange (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910290328.4A CN109910262B (en) | 2019-04-11 | 2019-04-11 | Three-layer co-extrusion machine head of bicolor quarter insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910290328.4A CN109910262B (en) | 2019-04-11 | 2019-04-11 | Three-layer co-extrusion machine head of bicolor quarter insulated cable |
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| Publication Number | Publication Date |
|---|---|
| CN109910262A true CN109910262A (en) | 2019-06-21 |
| CN109910262B CN109910262B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910290328.4A Active CN109910262B (en) | 2019-04-11 | 2019-04-11 | Three-layer co-extrusion machine head of bicolor quarter insulated cable |
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| CN (1) | CN109910262B (en) |
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| CN110181793A (en) * | 2019-07-03 | 2019-08-30 | 段文锋 | A kind of bilayer two-wire system electric wire extrusion head |
| CN110271162A (en) * | 2019-07-03 | 2019-09-24 | 安徽普瑞斯电工机械有限公司 | Double-layer bi-color cable co-extruding machine head |
| CN110509523A (en) * | 2019-09-26 | 2019-11-29 | 汕头经济特区雄伟塑料包装材料有限公司 | A kind of die head mounting structure of film line adjustable thickness |
| CN110853821A (en) * | 2019-11-29 | 2020-02-28 | 成都大唐线缆有限公司 | Coupling type new forms of energy electric automobile fills electric pile cable and double-deck crowded segmentation foaming equipment altogether |
| 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 |
| CN111681839A (en) * | 2020-06-10 | 2020-09-18 | 宜昌信通电缆有限公司 | Double-flow-channel and double-color wire extruding machine head and cable manufacturing method |
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| 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 |
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| CN110509523A (en) * | 2019-09-26 | 2019-11-29 | 汕头经济特区雄伟塑料包装材料有限公司 | A kind of die head mounting structure of film line adjustable thickness |
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| CN114454458A (en) * | 2022-02-14 | 2022-05-10 | 江西华缆科技有限公司 | Three-layer co-extrusion machine head for low-smoke halogen-free cable |
| 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 |
| CN117549532A (en) * | 2023-12-09 | 2024-02-13 | 青岛新大成塑料机械有限公司 | Extruder head for extruder, extrusion equipment and replacement method thereof |
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