CN106926427A - A kind of preparation method of optical cable filling rope material double-layer coextrusion - Google Patents
A kind of preparation method of optical cable filling rope material double-layer coextrusion Download PDFInfo
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- CN106926427A CN106926427A CN201710317924.8A CN201710317924A CN106926427A CN 106926427 A CN106926427 A CN 106926427A CN 201710317924 A CN201710317924 A CN 201710317924A CN 106926427 A CN106926427 A CN 106926427A
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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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/49—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
A kind of preparation method of optical cable filling rope material double-layer coextrusion, its step is step：The center material of gasket for packing will be produced, the polymer particles pellet of lapping is respectively placed in respective single-screw machine extruding machine, the discharging opening of two single screw rod extruding machines is docked in the runner that the mould two of the double-layer coextrusion of annular concentric is connected, then by gasket for packing center material, the particulate material of lapping is after the heating melting of respective extruding machine high temperature, heating-up temperature is the melt temperature of each material, respectively through the common extrusion of runner mouthful of the double-layer coextrusion extrusion die of annular concentric, after co-extruding machine head, and the optical cable filling rope of concentric cylindrical structure is obtained by hauling machine stretching.
Description
Technical field
Patent of the present invention is related to the production technical field of optical cable gasket for packing, more particularly, to a kind of new optical cable filling
Rope.
Background technology
With continuing to develop, it is necessary to the more high-quality cable manufactures of optical cable and optical fibres enterprise production for the communications industry, together
When due to the large-scale basis construction of 4G networks, under the background of all standing of information network, the demand of optical cable is also continuous
Increase, and gasket for packing is an important part of small core number cable configuration, gasket for packing plays filling effect, mesh in optical cable
In order to allow cable core structure enough roundings, so as to ensure the Stability Analysis of Structures of optical cable.Because gasket for packing only rises in optical cable
To filling effect, therefore optical cable production industry reduces the consumption of raw material, in the gasket for packing material composition of use for reduces cost
There is more impurity and additive, micropore can be produced after shaping, make the diameter of increase gasket for packing.But the machinery of this gasket for packing
Intensity is poor, rough, and color and luster is uneven, and also critically important shortcoming is exactly the oil that blocks water for absorbing the filling of optical cable the inside
Cream, substantially increases the probability that optical cable seeps water in use, reduces the service life of optical cable.
Because usual optical cable filling rope is extruded by a multiple screw extruder by a kind of material, that so extrudes fills out
Fill rope surface quality bad, presently, there are gasket for packing bad mechanical strength, rough, oil suction, performance is poor.
The content of the invention
The purpose of patent of the present invention is to provide a kind of preparation method of optical cable filling rope material double-layer coextrusion.
The present invention is a kind of preparation method of optical cable filling rope material double-layer coextrusion, and its step is：
（1）It is polyacrylic polymer particles pellet respectively at import by inhaling that the center material of gasket for packing, lapping will be produced
Draw formula feeder to be delivered in respective baking material bucket；
（2）After through baking material bucket drying, the feeding section region of respective extruding machine is entered after exit is filtered by magnetic filter；
Pellet is preheated in feeding section, is compacted in the presence of screw rod, afterwards into the melt zone region of extruding machine；Material is in melt zone
After heating makes material fully plastify, the homogenizing zone of extruding machine is then entered by the screw propulsion of screw rod；Viscous state plastics after plasticizing,
Under the continuous action of temperature, the fully plasticizing again that fraction is not plastified makes material reach molten condition, is stirred by screw spiral
Mix, be allowed to level pressure, quantitative and constant temperature get into extruder head；
（3）Expect, through each region heating extruding of fuselage of single screw rod extruding machine, molten condition to be changed to by graininess；In the machine of extruding machine
Neck discharging opening is docked with co-extruder head, is connected to a fixed by flange；
（4）The discharging opening of two single screw rod extruding machines is docked in the runner that the mould of the double-layer coextrusion of annular concentric is connected,
In the presence of the helical rotation of screw rod, will melt viscous state material respectively through annular concentric double-layer coextrusion extrusion die stream
Extrude jointly at road junction；Wherein, center material is placed in the centre bore of co-extruding mould, and wrapper material is placed in the annular of co-extruding mould
Hole, through co-extruding machine head after, and the optical cable filling rope of concentric cylindrical structure is obtained by hauling machine stretching；
（5）Through extrusion die mouthful out, under the traction of hauling machine, by mainframe program by the rotating speed of screw rod and the rotating speed of hauling machine
Coefficients match is carried out, the optical cable filling rope of the concentric cylindrical structure of required diameter is prepared；The belt tension gas of this hauling machine
Press as between 0.15~0.20MPa.
The present invention proposes the process of double-layer coextrusion, and one layer of purity material higher is wrapped up on the basis of original,
Formation is made up of the different material of two-layer, in concentric cylinder.Novel optical cable gasket for packing is led to by two single screw rod extruding machines
Double-layer coextrusion extrusion die extrusion is crossed, Novel optical cable gasket for packing is prepared, with good mechanical property, surface is smooth, not oil suction etc.
Characteristic.
Brief description of the drawings
The cross-sectional perspective view of the optical cable filling rope that Fig. 1 is prepared for the inventive method, Fig. 2 is the cross-sectional view of Fig. 1；
Fig. 3 is the process charts of the inventive method, and reference and correspondence are entitled：1. the integument of central core 2..
Specific embodiment
The present invention is a kind of preparation method of optical cable filling rope material double-layer coextrusion, and its step is：
（1）It is polyacrylic polymer particles pellet respectively at import by inhaling that the center material of gasket for packing, lapping will be produced
Draw formula feeder to be delivered in respective baking material bucket；
（2）After through baking material bucket drying, the feeding section region of respective extruding machine is entered after exit is filtered by magnetic filter；
Pellet is preheated in feeding section, is compacted in the presence of screw rod, afterwards into the melt zone region of extruding machine；Material is in melt zone
After heating makes material fully plastify, the homogenizing zone of extruding machine is then entered by the screw propulsion of screw rod；Viscous state plastics after plasticizing,
Under the continuous action of temperature, the fully plasticizing again that fraction is not plastified makes material reach molten condition, is stirred by screw spiral
Mix, be allowed to level pressure, quantitative and constant temperature get into extruder head；
（3）Expect, through each region heating extruding of fuselage of single screw rod extruding machine, molten condition to be changed to by graininess；In the machine of extruding machine
Neck discharging opening is docked with co-extruder head, is connected to a fixed by flange；
（4）The discharging opening of two single screw rod extruding machines is docked in the runner that the mould of the double-layer coextrusion of annular concentric is connected,
In the presence of the helical rotation of screw rod, will melt viscous state material respectively through annular concentric double-layer coextrusion extrusion die stream
Extrude jointly at road junction；Wherein, center material is placed in the centre bore of co-extruding mould, and wrapper material is placed in the annular of co-extruding mould
Hole, through co-extruding machine head after, and the optical cable filling rope of concentric cylindrical structure is obtained by hauling machine stretching；
（5）Through extrusion die mouthful out, under the traction of hauling machine, by mainframe program by the rotating speed of screw rod and the rotating speed of hauling machine
Coefficients match is carried out, the optical cable filling rope of the concentric cylindrical structure of required diameter is prepared；The belt tension gas of this hauling machine
Press as between 0.15~0.20MPa.
Described center material is from recycling, cost is relatively low, add the polypropylene of auxiliary agent.Described lapping choosing
With virgin pp, polybutylene terephthalate (PBT), polyethylene.
The preparation method of above-described optical cable filling rope material double-layer coextrusion, as shown in figure 3, it is concretely comprised the following steps：
（1）There is aspiration-type conveyer to be transported in the baking material of respective single screw rod extruding machine bucket center material and lapping；Dry
The temperature of charging basket is expected to be all 85 DEG C or so, and suction interval time is 80s；
（2）After baking material bucket drying, center material and virgin pp material are filtered in the exit of baking material bucket by magnetic filter respectively
Afterwards into the feeding section region of respective extruding machine, the temperature of the center material in this region is between 140~160 DEG C, to wrap up material
The temperature of material is 150~160 DEG C；Two kinds of particles material is preheated in feeding section, and after being compacted in the presence of screw rod, is entered
The melt zone region of extruding machine, the temperature of the center material in this region is between 170~190 DEG C, the temperature of lapping is 180
~190 DEG C；After material makes material fully plastify after melt zone heating, the homogenizing of extruding machine is then entered by the screw propulsion of screw rod
Section, the temperature of the center material in this region between 190~200 DEG C, 195~200 DEG C of the temperature of lapping；It is viscous after plasticizing
Fluidised form plastics, under the continuous action of heating-up temperature, the fully plasticizing again that fraction is not plastified makes material reach molten
State, is stirred by screw spiral, is allowed to level pressure, quantitative and constant temperature is got into extruder head；
（3）Expect, through each region heating extruding plasticizing of fuselage of single screw rod extruding machine, molten condition to be changed to by graininess；In extruding machine
Machine neck discharging opening docked with co-extruder head, be connected to a fixed by flange, the temperature of the center material of this region machine neck is
Between 185~195 DEG C, the temperature of lapping is 190~195 DEG C, the temperature of the center material of flange for 185~195 DEG C it
Between, the temperature of lapping is 190~200 DEG C；
（4）The discharging opening of two single screw rod extruding machines is docked in the runner that the mould of the double-layer coextrusion of annular concentric is connected,
In the presence of the helical rotation of screw rod, will melt viscous state material respectively through annular concentric double-layer coextrusion extrusion die stream
Extrude jointly at road junction；The temperature of the module one in this region of co-extruding machine head is between 195~220 DEG C, the temperature of module two for 195~
Between 230 DEG C；
（5）Through extrusion die mouthful out, under the traction of hauling machine, by mainframe program by the rotating speed of screw rod and the rotating speed of hauling machine
Coefficients match is carried out, the optical cable filling rope of the concentric cylindrical structure of required diameter is prepared.
Embodiment 1:
Center material：Polypropylene after treatment recovery；Lapping：Virgin pp（PP）.
（1）There is aspiration-type conveyer to be transported to the baking material of respective single screw rod extruding machine center material and lapping first
In bucket.Material, virgin pp centered on polypropylene after wherein recycling（PP）It is lapping, the temperature of baking material charging basket is
It all it is 85 DEG C or so, suction interval time is 80s or so；
（2）After baking material bucket drying, center material and virgin pp material are filtered in the exit of baking material bucket by magnetic filter respectively
Afterwards into the feeding section region of respective extruding machine, the temperature of the center material in this region is between 140~160 DEG C, to wrap up material
The temperature of material is 150~160 DEG C；Two kinds of particles material is preheated in feeding section, and after being compacted in the presence of screw rod, is entered
The melt zone region of extruding machine, the temperature of the center material in this region is between 170~190 DEG C, the temperature of lapping is 180
~190 DEG C；After material makes material fully plastify after melt zone heating, the homogenizing of extruding machine is then entered by the screw propulsion of screw rod
Section, the temperature of the center material in this region between 190~200 DEG C, 195~200 DEG C of the temperature of lapping；It is viscous after plasticizing
Fluidised form plastics, under the continuous action of heating-up temperature, the fully plasticizing again that fraction is not plastified makes material reach molten
State, is stirred by screw spiral, is allowed to level pressure, quantitative and constant temperature is got into extruder head；
（3）Expect, through each region heating extruding plasticizing of fuselage of single screw rod extruding machine, molten condition to be changed to by graininess.In extruding machine
Machine neck discharging opening docked with co-extruder head, be connected to a fixed by flange, the temperature of the center material of this region machine neck is
Between 185~195 DEG C, the temperature of lapping is 190~195 DEG C, the temperature of the center material of flange for 185~195 DEG C it
Between, the temperature of lapping is 190~200 DEG C；
（4）The discharging opening of two single screw rod extruding machines is docked in the runner that the mould of the double-layer coextrusion of annular concentric is connected,
In the presence of the helical rotation of screw rod, will melt viscous state material respectively through annular concentric double-layer coextrusion extrusion die stream
Extrude jointly at road junction；Wherein, center material is placed in the centre bore of co-extruding mould, and wrapper material is placed in the annular of co-extruding mould
Hole, through co-extruding machine head after, and the Novel optical cable gasket for packing of concentric cylindrical structure is obtained by hauling machine stretching.This area of co-extruding machine head
The temperature of the module one in domain is between 195~200 DEG C, the temperature of module two is between 185~195 DEG C；
（5）Through extrusion die mouthful out, under the traction of hauling machine, by mainframe program by the rotating speed of screw rod and the rotating speed of hauling machine
Carry out coefficients match, it is possible to prepare the Novel optical cable gasket for packing of the concentric cylindrical structure of required diameter.This hauling machine
Belt tension air pressure is between 0.15~0.20MPa.
The extruding machine warm area temperature control table of table 1.
Embodiment 2：
Center material：Polypropylene after treatment recovery；Lapping：Polybutylene terephthalate (PBT)（PBT）.
（1）There is aspiration-type conveyer to be transported to the baking material of respective single screw rod extruding machine center material and lapping first
In bucket.Material centered on polypropylene after wherein recycling, polybutylene terephthalate (PBT) (PBT) is lapping, is dried
The temperature central material of charging basket is 85 DEG C or so, and lapping is 100 DEG C or so, and suction interval time is 80s or so；
（2）After baking material bucket drying, center material and polybutylene terephthalate (PBT)（PBT）Material is respectively in the outlet of baking material bucket
Place enters the feeding section region of respective extruding machine after being filtered by magnetic filter, the temperature of this regional center material is 140~160
DEG C, the temperature of lapping is between 190~200 DEG C；Two kinds of particles material is preheated in feeding section, and is entered in the presence of screw rod
After row compacting, into the melt zone region of extruding machine, the temperature of the center material in this region is between 170~190 DEG C, to wrap up material
The temperature of material is 205~215 DEG C；After material makes material fully plastify after melt zone heating, then entered by the screw propulsion of screw rod
The homogenizing zone of extruding machine, the temperature of the center material in this region between 190~200 DEG C, the temperature of lapping for 210~
225℃；Viscous state plastics after plasticizing, under the continuous action of temperature, the fully plasticizing again that fraction is not plastified makes material
Molten condition is reached, is stirred by screw spiral, be allowed to level pressure, quantitative and constant temperature get into extruder head；
（3）Expect, through each region heating extruding plasticizing of fuselage of single screw rod extruding machine, molten condition to be changed to by graininess.In extruding machine
Machine neck discharging opening docked with co-extruder head, be connected to a fixed by flange, the temperature of the center material of this region machine neck is
Between 185~195 DEG C, the temperature of lapping is 220~230 DEG C；The temperature of the center material of flange be 185~195 DEG C it
Between, the temperature of lapping is 225-230 DEG C；
（4）The discharging opening of two single screw rod extruding machines is docked in the runner that the mould of the double-layer coextrusion of annular concentric is connected,
In the presence of the helical rotation of screw rod, will melt viscous state material respectively through annular concentric double-layer coextrusion extrusion die stream
Extrude jointly at road junction；Wherein, center material is placed in the centre bore of co-extruding mould, and wrapper material is placed in the annular of co-extruding mould
Hole, through co-extruding machine head after, and the Novel optical cable gasket for packing of concentric cylindrical structure is obtained by hauling machine stretching.This area of co-extruding machine head
The temperature of the module one in domain is between 195~200 DEG C, the temperature of module two is between 185~195 DEG C；
（5）Through extrusion die mouthful out, under the traction of hauling machine, by mainframe program by the rotating speed of screw rod and the rotating speed of hauling machine
Carry out coefficients match, it is possible to prepare the Novel optical cable gasket for packing of the concentric cylindrical structure of required diameter.This hauling machine
Belt tension air pressure is between 0.15~0.20MPa.
The extruding machine warm area temperature control table of table 2.
Claims (2)
1. a kind of preparation method of optical cable filling rope material double-layer coextrusion, it is characterised in that its step is：
（1）It is polyacrylic polymer particles pellet respectively at import by inhaling that the center material of gasket for packing, lapping will be produced
Draw formula feeder to be delivered in respective baking material bucket；
（2）After through baking material bucket drying, the feeding section region of respective extruding machine is entered after exit is filtered by magnetic filter；
Pellet is preheated in feeding section, is compacted in the presence of screw rod, afterwards into the melt zone region of extruding machine；Material is in melt zone
After heating makes material fully plastify, the homogenizing zone of extruding machine is then entered by the screw propulsion of screw rod；Viscous state plastics after plasticizing,
Under the continuous action of temperature, the fully plasticizing again that fraction is not plastified makes material reach molten condition, is stirred by screw spiral
Mix, be allowed to level pressure, quantitative and constant temperature get into extruder head；
（3）Expect, through each region heating extruding of fuselage of single screw rod extruding machine, molten condition to be changed to by graininess；In the machine of extruding machine
Neck discharging opening is docked with co-extruder head, is connected to a fixed by flange；
（4）The discharging opening of two single screw rod extruding machines is docked in the runner that the mould of the double-layer coextrusion of annular concentric is connected,
In the presence of the helical rotation of screw rod, will melt viscous state material respectively through annular concentric double-layer coextrusion extrusion die stream
Extrude jointly at road junction；Wherein, center material is placed in the centre bore of co-extruding mould, and wrapper material is placed in the annular of co-extruding mould
Hole, through co-extruding machine head after, and the optical cable filling rope of concentric cylindrical structure is obtained by hauling machine stretching；
（5）Through extrusion die mouthful out, under the traction of hauling machine, by mainframe program by the rotating speed of screw rod and the rotating speed of hauling machine
Coefficients match is carried out, the optical cable filling rope of the concentric cylindrical structure of required diameter is prepared；The belt tension gas of this hauling machine
Press as between 0.15~0.20MPa.
2. the preparation method of optical cable filling rope material double-layer coextrusion according to claim 1, it is characterised in that its specific steps
For：
（1）There is aspiration-type conveyer to be transported in the baking material of respective single screw rod extruding machine bucket center material and lapping；Dry
The temperature of charging basket is expected to be all 85 DEG C or so, and suction interval time is 80s；
（2）After baking material bucket drying, center material and virgin pp material are filtered in the exit of baking material bucket by magnetic filter respectively
Afterwards into the feeding section region of respective extruding machine, the temperature of the center material in this region is between 140~160 DEG C, to wrap up material
The temperature of material is 150~160 DEG C；Two kinds of particles material is preheated in feeding section, and after being compacted in the presence of screw rod, is entered
The melt zone region of extruding machine, the temperature of the center material in this region is between 170~190 DEG C, the temperature of lapping is 180
~190 DEG C；After material makes material fully plastify after melt zone heating, the homogenizing of extruding machine is then entered by the screw propulsion of screw rod
Section, the temperature of the center material in this region between 190~200 DEG C, 195~200 DEG C of the temperature of lapping；It is viscous after plasticizing
Fluidised form plastics, under the continuous action of heating-up temperature, the fully plasticizing again that fraction is not plastified makes material reach molten
State, is stirred by screw spiral, is allowed to level pressure, quantitative and constant temperature is got into extruder head；
（3）Expect, through each region heating extruding plasticizing of fuselage of single screw rod extruding machine, molten condition to be changed to by graininess；In extruding machine
Machine neck discharging opening docked with co-extruder head, be connected to a fixed by flange, the temperature of the center material of this region machine neck is
Between 185~195 DEG C, the temperature of lapping is 190~195 DEG C, the temperature of the center material of flange for 185~195 DEG C it
Between, the temperature of lapping is 190~200 DEG C；
（4）The discharging opening of two single screw rod extruding machines is docked in the runner that the mould of the double-layer coextrusion of annular concentric is connected,
In the presence of the helical rotation of screw rod, will melt viscous state material respectively through annular concentric double-layer coextrusion extrusion die stream
Extrude jointly at road junction；The temperature of the module one in this region of co-extruding machine head is between 195~220 DEG C, the temperature of module two for 195~
Between 230 DEG C；
（5）Through extrusion die mouthful out, under the traction of hauling machine, by mainframe program by the rotating speed of screw rod and the rotating speed of hauling machine
Coefficients match is carried out, the optical cable filling rope of the concentric cylindrical structure of required diameter is prepared.
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| CN201710317924.8A CN106926427A (en) | 2017-05-08 | 2017-05-08 | A kind of preparation method of optical cable filling rope material double-layer coextrusion |
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| CN201710317924.8A CN106926427A (en) | 2017-05-08 | 2017-05-08 | A kind of preparation method of optical cable filling rope material double-layer coextrusion |
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| CN106926427A true CN106926427A (en) | 2017-07-07 |
Family
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108756478A (en) * | 2018-07-06 | 2018-11-06 | 东莞市领尚数控有限公司 | A kind of easy-to-dismount wear-resisting type hardware plastics car key protective case |
| CN111890655A (en) * | 2020-07-22 | 2020-11-06 | 宿迁市金田塑业有限公司 | Multi-layer co-extrusion production process of biaxially oriented polyethylene antibacterial antifogging film |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204673984U (en) * | 2015-05-07 | 2015-09-30 | 深圳市新泰欣宏精密模具有限公司 | A kind of optical cable filling rope co-extruder head |
| CN106182666A (en) * | 2016-09-06 | 2016-12-07 | 深圳市圣诺光电科技有限公司 | Plastic optical fiber and preparation method thereof and preparation facilities |
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- 2017-05-08 CN CN201710317924.8A patent/CN106926427A/en active Pending
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| CN204673984U (en) * | 2015-05-07 | 2015-09-30 | 深圳市新泰欣宏精密模具有限公司 | A kind of optical cable filling rope co-extruder head |
| CN106182666A (en) * | 2016-09-06 | 2016-12-07 | 深圳市圣诺光电科技有限公司 | Plastic optical fiber and preparation method thereof and preparation facilities |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756478A (en) * | 2018-07-06 | 2018-11-06 | 东莞市领尚数控有限公司 | A kind of easy-to-dismount wear-resisting type hardware plastics car key protective case |
| CN111890655A (en) * | 2020-07-22 | 2020-11-06 | 宿迁市金田塑业有限公司 | Multi-layer co-extrusion production process of biaxially oriented polyethylene antibacterial antifogging film |
| CN111890655B (en) * | 2020-07-22 | 2021-11-23 | 宿迁市金田塑业有限公司 | Multi-layer co-extrusion production process of biaxially oriented polyethylene antibacterial antifogging film |
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Application publication date: 20170707 |