CN107768039A - A kind of ceramic polyolefin fire-resistant wires double-layer coextrusion equipment and coextrusion process - Google Patents
A kind of ceramic polyolefin fire-resistant wires double-layer coextrusion equipment and coextrusion process Download PDFInfo
- Publication number
- CN107768039A CN107768039A CN201711008883.0A CN201711008883A CN107768039A CN 107768039 A CN107768039 A CN 107768039A CN 201711008883 A CN201711008883 A CN 201711008883A CN 107768039 A CN107768039 A CN 107768039A
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- Prior art keywords
- plastic extruder
- cooling device
- plastic
- air
- double
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
- H01B13/141—Insulating conductors or cables by extrusion of two or more insulating layers
Abstract
The invention discloses a kind of ceramic polyolefin fire-resistant wires double-layer coextrusion equipment, and it includes the caterpillar-tractor being sequentially arranged from left to right（1）, the first plastic extruder（2）, air-cooling device（3）, the second plastic extruder（4）And Water Tank with Temp.-controlled（5）, the first plastic extruder（2）Top be connected with feeding drying system（6）, air-cooling device（3）With the second plastic extruder（4）Between be provided with vacuum pumping pump（7）, vacuum pumping pump（7）Suction opeing be inserted into the second plastic extruder（4）In；It also discloses the double-layer coextrusion technique of ceramic polyolefin fire-resistant wires.The beneficial effects of the invention are as follows：Compact equipment, simplify manufacturing process, improving production efficiency, make external insulation layer and inner insulating layer is seamless combines closely, significantly improve product quality and service life.
Description
Technical field
The present invention relates to the technology of ceramic polyolefin fire-resistant wires production, particularly a kind of ceramic polyolefin flame proof electrical
Line double-layer coextrusion equipment and coextrusion process.
Background technology
With the fast development of national economy and the continuous improvement of living standards of the people, society's electricity consumption amount greatly increases.Respectively
The steep increasing of kind electrical equipment consumption, electrical fire accident also increase severely therewith.According to statistics, fire occurs every year for China ten thousand about more than ten
Rise, more than 10 hundred million yuan of direct property loss.Wherein, by the fire that electrically reason triggers such as wire short-circuiting, excess load, electric equipment failure
Calamity accounts for the 30% of sum, and the frequency of electrical fire and caused loss are occupied first of all kinds of fire.In electrical fire
In, the fire triggered by electric wire accounts for half.Therefore the fire-retardant and fire safety problem people on electric wire increasingly pay attention to, right
The fire-retardant and fire protection requirement of electric wire also more and more higher.
Traditional fire-resistant wires complex manufacturing, its flame retardant coating and insulating barrier are wrapped and two incoherent works of insulation
Sequence, including wrapped fire-resistant isinglass belt process and with extruded insulation layer process.Because wrapped mica tape easily occurs in extrusion molding
The situation for being broken, coming off and crumpling, it is unfavorable for extrusion procedure, can not more ensures the uniform of insulating barrier, while there is also work effect
The defects of rate is low.
The production technology of common ceramic polyolefin fire resisting double hyer insulation electric wire is to be extruded by extruder on conductor
Ceramic fire resisting inner insulating layer substitutes the wrapped mica tape of tradition, then one layer of fire resisting of a few bags outside ceramic fire resisting inner insulating layer again
Insulating barrier.However, because inside and outside insulating barrier is extruded at twice, concentricity is poor, and deposits the air gap between two layers of insulation, causes
External insulation layer is bonded not close with inner insulating layer, the ceramic polyolefin fire-resistant wires product quality for causing final production to go out
Difference, its service life is shortened, therefore common ceramic polyolefin fire resisting double hyer insulation electric wire is commercially difficult to promote.
The content of the invention
The shortcomings that it is an object of the invention to overcome prior art, there is provided it is a kind of compact-sized, simplify manufacturing process, lifting
Production efficiency, make external insulation layer and inner insulating layer is seamless combines closely, significantly improve the ceramics of product quality and service life
Change polyolefin fire-resistant wires double-layer coextrusion equipment and coextrusion process.
The purpose of the present invention is achieved through the following technical solutions：A kind of ceramic polyolefin fire-resistant wires double-layer coextrusion is set
Standby, it includes caterpillar-tractor, the first plastic extruder, air-cooling device, the second plastic extrusion being sequentially arranged from left to right
Machine and Water Tank with Temp.-controlled, feeding drying system, the air-cooling device and second are connected with the top of first plastic extruder
Vacuum pumping pump is provided between plastic extruder, the suction opeing of the vacuum pumping pump is inserted into the second plastic extruder.
The equipment also includes electrical control cubicles, and the electrical control cubicles are connected with the first plastic extruder and the second plastic extruder.
The air-cooling device includes transverse tube and standpipe, and the standpipe connects with transverse tube, and the side of standpipe is provided with air intake
Pipe.
Double-deck technique of described equipment co-extrusion ceramic polyolefin fire-resistant wires, it is characterised in that：It includes following step
Suddenly：
S1, will coil first section in the conductor of unreeling structure through caterpillar-tractor, the first plastic extruder, air-cooling device,
Second plastic extruder, Water Tank with Temp.-controlled are finally fixed on rolling-up mechanism；
S2, start caterpillar-tractor, the first plastic extruder, air-cooling device, the second plastic extruder；
S3, caterpillar tractor drag to the right conductor, and the first plastic extruder is by plastic molting and is squeezed on conductor, are formed
Inner insulating layer；The inner insulating layer of formation enters in air-cooling device, and cold wind is passed through into air-cooling device can be to inner insulating layer
Cooled down；Start vacuum pumping pump, vacuum pumping pump will vacuumize in the second plastic extruder, and the second plastic extruder melts plastics
Change and be squeezed in outside inner insulating layer and form external insulation layer；
S4, step S3 conductor, which enter in Water Tank with Temp.-controlled, to be cooled down, and rolling after cooling is on rolling-up mechanism.
The present invention has advantages below：The present invention is compact-sized, simplifies manufacturing process, improving production efficiency, makes external insulation
Layer with inner insulating layer is seamless combines closely, significantly improve product quality and service life.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
In figure, 1- caterpillar-tractors, the plastic extruders of 2- first, 3- air-cooling devices, the plastic extruders of 4- second, 5- thermostatted waters
Groove, 6- feeding drying systems, 7- vacuum pumping pumps, 8- electrical control cubicles, 9- transverse tubes, 10- standpipes, 11- blast pipes.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings, and protection scope of the present invention is not limited to as described below：
As shown in figure 1, a kind of ceramic polyolefin fire-resistant wires double-layer coextrusion equipment, it includes the shoe being sequentially arranged from left to right
Band hauling machine 1, the first plastic extruder 2, air-cooling device 3, the second plastic extruder 4 and Water Tank with Temp.-controlled 5, first plastics
The top of extruder 2 is connected with feeding drying system 6, is provided with and takes out between the plastic extruder 4 of air-cooling device 3 and second
Vavuum pump 7, the suction opeing of the vacuum pumping pump 7 are inserted into the second plastic extruder 4.
As shown in figure 1, the equipment also includes electrical control cubicles 8, the plastic extruder 2 of electrical control cubicles 8 and first and the second plastics
Extruder 4 connects.The air-cooling device 3 includes transverse tube 9 and standpipe 10, and the standpipe 10 connects with transverse tube 9, the side of standpipe 10
Face is provided with blast pipe 11, and after cold wind is passed through to blast pipe 11, cold wind enters in transverse tube 9 through standpipe 10, so as to formation
Inner insulating layer is quickly cooled down.
As shown in figure 1, the technique that described equipment co-extrusion ceramic polyolefin fire-resistant wires are double-deck, it includes following step
Suddenly：
S1, first section in the conductor of unreeling structure will be coiled through caterpillar-tractor 1, the first plastic extruder 2, air-cooling device
3rd, the second plastic extruder 4, Water Tank with Temp.-controlled 5 are finally fixed on rolling-up mechanism；
S2, start caterpillar-tractor 1, the first plastic extruder 2, air-cooling device 3, the second plastic extruder 4；
S3, caterpillar tractor drag to the right conductor, and the first plastic extruder 2 is by plastic molting and is squeezed on conductor, shape
Into inner insulating layer；The inner insulating layer of formation enters in air-cooling device 3, and cold wind is passed through into air-cooling device 3 can be internally exhausted
Edge layer is cooled down；Start vacuum pumping pump 7, vacuum pumping pump 7 vacuumizes the second plastic extrusion machine head 4, the second plastic extruder 4
By plastic molting and it is coated on formation external insulation layer outside inner insulating layer；It is true due to being in all the time in the second plastic extrusion machine head 4
Dummy status, laminating tighter of external insulation layer and inner insulating layer is ensure that, improves product quality and service life；Due to the first modeling
Expect the axis and the axis coaxle of the second plastic extruder 4 of extruder 2, ensure that the product processed has high concentricity, effectively
The core shift defect of cable insulation is prevented；
S4, step S3 conductor, which enter in Water Tank with Temp.-controlled 5, to be cooled down, and rolling after cooling is on rolling-up mechanism.
Claims (4)
- A kind of 1. ceramic polyolefin fire-resistant wires double-layer coextrusion equipment, it is characterised in that：It includes being sequentially arranged from left to right Caterpillar-tractor（1）, the first plastic extruder（2）, air-cooling device（3）, the second plastic extruder（4）And Water Tank with Temp.-controlled （5）, first plastic extruder（2）Top be connected with feeding drying system（6）, the air-cooling device（3）With second Plastic extruder（4）Between be provided with vacuum pumping pump（7）, the vacuum pumping pump（7）Suction opeing be inserted into the second plastic extrusion Machine（4）In.
- A kind of 2. ceramic polyolefin fire-resistant wires double-layer coextrusion equipment according to claim 1, it is characterised in that：This sets It is standby also to include electrical control cubicles（8）, the electrical control cubicles（8）With the first plastic extruder（2）With the second plastic extruder（4）Connection.
- A kind of 3. ceramic polyolefin fire-resistant wires double-layer coextrusion equipment according to claim 1, it is characterised in that：It is described Air-cooling device（3）Including transverse tube（9）And standpipe（10）, the standpipe（10）With transverse tube（9）Connection, standpipe（10）Side set It is equipped with blast pipe（11）.
- 4. double-deck technique of equipment co-extrusion ceramic polyolefin fire-resistant wires according to claim 1, it is characterised in that：It Comprise the following steps：S1, the first section coiled in the conductor of unreeling structure passed through into caterpillar-tractor（1）, the first plastic extruder（2）, air cooling Device（3）, the second plastic extruder（4）, Water Tank with Temp.-controlled（5）Finally it is fixed on rolling-up mechanism；S2, start caterpillar-tractor（1）, the first plastic extruder（2）, air-cooling device（3）, the second plastic extruder（4）S3, caterpillar tractor drag to the right conductor, the first plastic extruder（2）By plastic molting and it is squeezed on conductor, Form inner insulating layer；The inner insulating layer of formation enters air-cooling device（3）In, to air-cooling device（3）In be passed through cold wind Inner insulating layer is cooled down；Start vacuum pumping pump（7）, vacuum pumping pump（7）By the second plastic extruder（4）Inside vacuumize, the Two plastic extruders（4）By plastic molting and it is squeezed in formation external insulation layer outside inner insulating layer；S4, step S3 conductor enter Water Tank with Temp.-controlled（5）Middle cooling, rolling after cooling is on rolling-up mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711008883.0A CN107768039A (en) | 2017-10-25 | 2017-10-25 | A kind of ceramic polyolefin fire-resistant wires double-layer coextrusion equipment and coextrusion process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711008883.0A CN107768039A (en) | 2017-10-25 | 2017-10-25 | A kind of ceramic polyolefin fire-resistant wires double-layer coextrusion equipment and coextrusion process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107768039A true CN107768039A (en) | 2018-03-06 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711008883.0A Pending CN107768039A (en) | 2017-10-25 | 2017-10-25 | A kind of ceramic polyolefin fire-resistant wires double-layer coextrusion equipment and coextrusion process |
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| CN (1) | CN107768039A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110690012A (en) * | 2019-11-14 | 2020-01-14 | 昆山兴鸿蒙电子有限公司 | Cable insulating layer coating machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204800995U (en) * | 2015-07-30 | 2015-11-25 | 苏州宝兴电线电缆有限公司 | Crowded forming device of cluster of double -deck cable |
| CN105489320A (en) * | 2016-01-12 | 2016-04-13 | 芜湖航天特种电缆厂股份有限公司 | Cable, production method and production device thereof |
| CN205343724U (en) * | 2015-01-27 | 2016-06-29 | 江西吉恩重工有限公司 | Cable former with two extruders |
| CN205984421U (en) * | 2016-08-26 | 2017-02-22 | 天津山旗线缆有限公司 | Cable former |
-
2017
- 2017-10-25 CN CN201711008883.0A patent/CN107768039A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205343724U (en) * | 2015-01-27 | 2016-06-29 | 江西吉恩重工有限公司 | Cable former with two extruders |
| CN204800995U (en) * | 2015-07-30 | 2015-11-25 | 苏州宝兴电线电缆有限公司 | Crowded forming device of cluster of double -deck cable |
| CN105489320A (en) * | 2016-01-12 | 2016-04-13 | 芜湖航天特种电缆厂股份有限公司 | Cable, production method and production device thereof |
| CN205984421U (en) * | 2016-08-26 | 2017-02-22 | 天津山旗线缆有限公司 | Cable former |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110690012A (en) * | 2019-11-14 | 2020-01-14 | 昆山兴鸿蒙电子有限公司 | Cable insulating layer coating machine |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180306 |
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