Parallel cable and preparation method thereof
Technical field
The invention belongs to technical field of electric wires and cables, especially a kind of parallel cable and preparation method thereof.
Background technology
In the prior art, parallel RVV is widely used, especially house decoration aspect, referring to Fig. 1 and Fig. 2, parallel RVV commonly used is made up of two insulated wires that are parallel to each other, the sheath 1 that envelopes insulated wire, and insulated wire is made of conductor 3 that is positioned at internal layer and the insulating barrier 2 that envelopes conductor.Because insulated wire be circular and parallel placement, thus two insulated wires intersect above or below, and exist gap 4 between the sheath, during installation, elder generation cuts off or severs sheath from gap location, reaches the purpose of separating sheath by the tearing insulated wire then.Because sheath material is more firm, therefore, is difficult to sometimes tear, and especially when being positioned at the electric light on top, electrical equipment, more dare not be used to tear, and can only open stripping with the cutter class, so very easily destroys insulating barrier, has potential safety hazard, therefore, has brought inconvenience to construction.
Summary of the invention
In order to address the above problem, one of purpose of the present invention provides a kind of parallel cable of being convenient to out stripping, two of purpose of the present invention is to disclose the manufacture method of this kind cable, they are realized by the following technical solutions: parallel cable, comprise two parallel placements insulated wire, be coated on the outer sheath 1 of insulated wire; Two insulated wires intersect above or below, and have gap 4 between the sheath; Insulated wire is made of conductor 3 that is positioned at internal layer and the insulating barrier 2 that envelopes conductor; It is characterized in that having the tearing port that runs through sheath on the sheath, and tearing port is positioned at gap location; Described tearing port distributes along the sheath compartment of terrain and as the crow flies; The tear edge of tearing described parallel cable in 3.5 newton between 9.5 newton; Described parallel cable is at one end fixed and is born under the situation of 10 newton's loads, the relative end of the other end reverses 10 circles clockwise continuously, counterclockwise 10 circles that reverse are continuously got back to the home position, reversed continuously counterclockwise under the situations of 10 circles more again, and sheath does not ftracture and do not torn; Described sheath is to be made by the mixture of the LLDPE of the high density polyethylene (HDPE) of 20% weight and 80% weight.
Above-mentioned described parallel cable is characterized in that described tearing port exists at least one surface of the upper surface of sheath, lower surface.
Above-mentioned described parallel cable is characterized in that the width of the same lip-deep tearing port of sheath equates.
Above-mentioned described parallel cable, the length that it is characterized in that the same lip-deep tearing port of sheath are that equate or unequal.
Above-mentioned described parallel cable is characterized in that described sheath also can be high density polyethylene (HDPE) or medium density polyethylene or PVC.
Above-mentioned described parallel cable is characterized in that described insulating barrier is high density polyethylene (HDPE) or medium density polyethylene or PVC or low smoke and zero halogen material.
Above-mentioned described parallel cable is characterized in that described conductor is the intertwist body of single piece of metal rod or many one metal wires.
Above-mentioned described parallel cable is characterized in that in the described conductor that by weight percentage, the copper that comprises is no less than 80%.
The manufacture method of above-mentioned described any parallel cable is characterized in that it comprises following steps:
The first step: choose conductor;
Second step: extrusion molding forms insulating barrier outside conductor, obtains insulated wire;
The 3rd step: repeated for first to second step, form second insulated wire;
The 4th step: the insulated wire that second step was obtained passes mould and makes both parallel placements with second insulated wire that the 3rd step obtained, and draws two insulated wires simultaneously and leave plastic extruding machine, squeezes into sheath in the insulated wire outside; Two insulated wires intersect above or below, and form the gap between the sheath;
The 5th step: at sheath upper surface or lower surface or scrape device on the upper and lower surface of sheath with shovel simultaneously and shovel and scrape tearing port; Described tearing port runs through sheath, and tearing port is positioned at gap location; Described tearing port distributes along the sheath compartment of terrain and as the crow flies; Described shovel is scraped device and is made of fixed body 7 that can move up and down and the shovel scraper 6 that is vertically mounted on the fixed body; It is synchronous or asynchronous that shovel is scraped the speed that speed that device moves up and down and parallel cable draw.
The manufacture method of above-mentioned described any parallel cable is characterized in that it comprises following steps:
The first step: choose conductor;
Second step: extrusion molding forms insulating barrier outside conductor, obtains insulated wire;
The 3rd step: repeated for first to second step, form second insulated wire;
The 4th step: the insulated wire that second step was obtained passes mould and makes both parallel placements with second insulated wire that the 3rd step obtained, and draws two insulated wires simultaneously and leave plastic extruding machine, squeezes into sheath in the insulated wire outside; Two insulated wires intersect above or below, and form the gap between the sheath;
The 5th step: at sheath upper surface or lower surface or scrape device on the upper and lower surface of sheath with shovel simultaneously and shovel and scrape tearing port; Described tearing port runs through sheath, and tearing port is positioned at gap location; Described tearing port distributes along the sheath compartment of terrain and as the crow flies; Described shovel is scraped device and is made of power set 9, transmission device 8, shovel scraper 6, and power set are fixed on the base 10, and base is fixed on the pedestal 11, and the shovel scraper is installed on the power set, and power set and transmission device join; It is that speed with the parallel cable traction is synchronous or asynchronous that power set form shovel scraper rotary cutting jacket surface to tear row mouthful, the rotating speed of power set.
The manufacture method of above-mentioned described parallel cable is characterized in that described power set are motor, and transmission device is axle or gear train or worm and gear assembly.
The manufacture method of above-mentioned described any parallel cable is characterized in that the described conductor of the first step is the single piece of metal rod, or stranded or braiding forms by many plain conductors.
The manufacture method of above-mentioned described any parallel cable is characterized in that described insulating barrier of second step is high density polyethylene (HDPE) or medium density polyethylene or PVC or low smoke and zero halogen material.
The manufacture method of above-mentioned described any parallel cable is characterized in that the width of the same lip-deep tearing port of described sheath of the 5th step equates.
The manufacture method of above-mentioned described any parallel cable is characterized in that the length of the same lip-deep tearing port of described sheath of the 5th step is that equate or unequal.
The manufacture method of above-mentioned described any parallel cable, it is characterized in that described sheath of the 5th step is high density polyethylene (HDPE) or medium density polyethylene or PVC, also can be for making by the mixture of the LLDPE of the high density polyethylene (HDPE) of 20% weight and 80% weight.
Parallel cable of the present invention, because jacket surface has tearing port, so it is quite convenient to open stripping, the more appropriate and antitorque commentaries on classics function admirable of the power of tearing compared with prior art, is saved raw material more; Manufacture method of the present invention is simple, and is easy to operate, when parallel cable during, shovel is scraped device is held in place jacket outer surface and corresponding section, gap by horizontally tracting, by move up and down or rotate make the shovel scraper constantly shovel scrape sheath, thereby form tearing port; Certainly, the movement velocity that shovel is scraped device can be complementary with parallel cable horizontal movement speed, is uniform thereby make the length of tearing port; Certainly, also can make both speed asynchronous, like this, the length of tearing port is the different length of possibility just; Because shovel is scraped the shovel scraper compartment of terrain shovel of device and scraped jacket surface, therefore, tearing port also is a gap distribution; In process of production,, do not make the parallel cable distortion and fix the position that shovel is scraped device, tearing port is linearly distributed at jacket surface as long as guarantee the motion of the horizontal aspect of parallel cable; The special component of protective cover material has the present invention to have possessed the anti-performance of reversing when easily tearing.
Therefore, the present invention has following beneficial effect: it is quite convenient to open stripping, the appropriate and antitorque commentaries on classics function admirable of the power of tearing, and raw material are saved more; The inventive method is simple, and is easy to operate.
Description of drawings
Fig. 1 is the part schematic perspective view of the parallel RVV of prior art;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is the perspective view that the invention process example 1 local solution is cut open;
Fig. 4 is the perspective view that the invention process example 2 local solutions are cut open;
Fig. 5 is the perspective view that the invention process example 3 local solutions are cut open;
Fig. 6 is the vertical view that the invention process example 4 local solutions are cut open;
Fig. 7 is the upward view that the invention process example 4 local solutions are cut open;
Fig. 8 is that shovel used in the invention process example 5 is scraped the schematic diagram that the device shovel is scraped sheath;
Fig. 9 is that shovel used in the invention process example 6 is scraped the schematic diagram that the device shovel is scraped sheath.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing; Embodiment 1 to embodiment 4 is the embodiment of parallel cable of the present invention; Embodiment 5, embodiment 6 are the embodiment of the inventive method.
Embodiment 1
Ask for an interview Fig. 3, and in conjunction with Fig. 1 and Fig. 2, parallel cable, comprise two parallel placements insulated wire, be coated on the outer sheath 1 of insulated wire; Two insulated wires intersect above or below, and have gap 4 between the sheath; Insulated wire is made of conductor 3 that is positioned at internal layer and the insulating barrier 2 that envelopes conductor; It is characterized in that having on the sheath the last tearing port 5 that runs through sheath, and tearing port is positioned at gap location; Described tearing port distributes along the sheath compartment of terrain and as the crow flies; The tear edge of tearing described parallel cable in 3.5 newton between 9.5 newton; Described parallel cable is at one end fixed and is born under the situation of 10 newton's loads, the relative end of the other end reverses 10 circles clockwise continuously, counterclockwise 10 circles that reverse are continuously got back to the home position, reversed continuously counterclockwise under the situations of 10 circles more again, and sheath does not ftracture and do not torn; The length of the lip-deep tearing port of sheath equates; Described sheath is to be made by the mixture of the LLDPE of the high density polyethylene (HDPE) of 20% weight and 80% weight.
Embodiment 2
Ask for an interview Fig. 4, and in conjunction with Fig. 1 and Fig. 2, parallel cable, comprise two parallel placements insulated wire, be coated on the outer sheath 1 of insulated wire; Two insulated wires intersect above or below, and have gap 4 between the sheath; Insulated wire is made of conductor 3 that is positioned at internal layer and the insulating barrier 2 that envelopes conductor; It is characterized in that the sheath upper surface has the last tearing port 5 that runs through sheath, the sheath lower surface has the following tearing port 51 that runs through sheath, and upper and lower tearing port all is positioned at gap location; Described tearing port distributes along the sheath compartment of terrain and as the crow flies; The tear edge of tearing described parallel cable in 3.5 newton between 9.5 newton; Described parallel cable is at one end fixed and is born under the situation of 10 newton's loads, the relative end of the other end reverses 10 circles clockwise continuously, counterclockwise 10 circles that reverse are continuously got back to the home position, reversed continuously counterclockwise under the situations of 10 circles more again, and sheath does not ftracture and do not torn; The length of the lip-deep tearing port of sheath equates; Described sheath is to be made by the mixture of the LLDPE of the high density polyethylene (HDPE) of 20% weight and 80% weight.
Embodiment 3
Ask for an interview Fig. 5, and in conjunction with Fig. 1 and Fig. 2, with embodiment 1, difference is substantially: the length of the lip-deep tearing port of sheath is unequal.
Embodiment 4
Ask for an interview Fig. 6 and Fig. 7, and in conjunction with Fig. 1, Fig. 2 and Fig. 4, with embodiment 2, difference is substantially: the length of the last tearing port 5 of sheath upper surface is unequal; The length of the following tearing port 51 of sheath lower surface also is unequal.
Certainly, the parallel cable described in above-mentioned arbitrary embodiment is characterized in that described tearing port exists at least one surface of the upper surface of sheath, lower surface.
Certainly, the parallel cable described in above-mentioned arbitrary embodiment is characterized in that the width of the same lip-deep tearing port of sheath equates.
Certainly, the parallel cable described in above-mentioned arbitrary embodiment, the length that it is characterized in that the same lip-deep tearing port of sheath are that equate or unequal.
Certainly, the parallel cable described in above-mentioned arbitrary embodiment is characterized in that described sheath also can be high density polyethylene (HDPE) or medium density polyethylene or PVC.
Certainly, the parallel cable described in above-mentioned arbitrary embodiment is characterized in that described insulating barrier is high density polyethylene (HDPE) or medium density polyethylene or PVC or low smoke and zero halogen material.
Certainly, the parallel cable described in above-mentioned arbitrary embodiment is characterized in that described conductor is the intertwist body of single piece of metal rod or many one metal wires.
Certainly, the parallel cable described in above-mentioned arbitrary embodiment is characterized in that in the described conductor that by weight percentage, the copper that comprises is no less than 80%.
Embodiment 5
Ask for an interview Fig. 8 and consult Fig. 1 to Fig. 7, a kind of manufacture method of parallel cable is characterized in that it comprises following steps:
The first step: choose conductor;
Second step: extrusion molding forms insulating barrier outside conductor, obtains insulated wire;
The 3rd step: repeated for first to second step, form second insulated wire;
The 4th step: the insulated wire that second step was obtained passes mould and makes both parallel placements with second insulated wire that the 3rd step obtained, and draws two insulated wires simultaneously and leave plastic extruding machine, squeezes into sheath in the insulated wire outside; Two insulated wires intersect above or below, and form the gap between the sheath;
The 5th step: at sheath upper surface or lower surface or scrape device on the upper and lower surface of sheath with shovel simultaneously and shovel and scrape tearing port; Described tearing port runs through sheath, and tearing port is positioned at gap location; Described tearing port distributes along the sheath compartment of terrain and as the crow flies; Described shovel is scraped device and is made of fixed body 7 that can move up and down and the shovel scraper 6 that is vertically mounted on the fixed body; It is synchronous or asynchronous that shovel is scraped the speed that speed that device moves up and down and parallel cable draw.
Embodiment 6
Ask for an interview Fig. 9 and consult Fig. 1 to Fig. 7, a kind of manufacture method of parallel cable is characterized in that it comprises following steps:
The first step: choose conductor;
Second step: extrusion molding forms insulating barrier outside conductor, obtains insulated wire;
The 3rd step: repeated for first to second step, form second insulated wire;
The 4th step: the insulated wire that second step was obtained passes mould and makes both parallel placements with second insulated wire that the 3rd step obtained, and draws two insulated wires simultaneously and leave plastic extruding machine, squeezes into sheath in the insulated wire outside; Two insulated wires intersect above or below, and form the gap between the sheath;
The 5th step: at sheath upper surface or lower surface or scrape device on the upper and lower surface of sheath with shovel simultaneously and shovel and scrape tearing port; Described tearing port runs through sheath, and tearing port is positioned at gap location; Described tearing port distributes along the sheath compartment of terrain and as the crow flies; Described shovel is scraped device and is made of power set 9, transmission device 8, shovel scraper 6, and power set are fixed on the base 10, and base is fixed on the pedestal 11, and the shovel scraper is installed on the power set, and power set and transmission device join; It is that speed with the parallel cable traction is synchronous or asynchronous that power set form shovel scraper rotary cutting jacket surface to tear row mouthful, the rotating speed of power set.
The manufacture method of above-mentioned described parallel cable is characterized in that described power set are motor, and transmission device is axle or gear train or worm and gear assembly.
The manufacture method of above-mentioned described any parallel cable is characterized in that the described conductor of the first step is the single piece of metal rod, or stranded or braiding forms by many plain conductors.
The manufacture method of above-mentioned described any parallel cable is characterized in that described insulating barrier of second step is high density polyethylene (HDPE) or medium density polyethylene or PVC or low smoke and zero halogen material.
The manufacture method of above-mentioned described any parallel cable is characterized in that the width of the same lip-deep tearing port of described sheath of the 5th step equates.
The manufacture method of above-mentioned described any parallel cable is characterized in that the length of the same lip-deep tearing port of described sheath of the 5th step is that equate or unequal.
The manufacture method of above-mentioned described any parallel cable, it is characterized in that described sheath of the 5th step is high density polyethylene (HDPE) or medium density polyethylene or PVC, also can be for making by the mixture of the LLDPE of the high density polyethylene (HDPE) of 20% weight and 80% weight.
Parallel cable of the present invention, because jacket surface has tearing port, so it is quite convenient to open stripping, the more appropriate and antitorque commentaries on classics function admirable of the power of tearing compared with prior art, is saved raw material more; Manufacture method of the present invention is simple, and is easy to operate, when parallel cable during, shovel is scraped device is held in place jacket outer surface and corresponding section, gap by horizontally tracting, by move up and down or rotate make the shovel scraper constantly shovel scrape sheath, thereby form tearing port; Certainly, the movement velocity that shovel is scraped device can be complementary with parallel cable horizontal movement speed, is uniform thereby make the length of tearing port; Certainly, also can make both speed asynchronous, like this, the length of tearing port is the different length of possibility just; Because shovel is scraped the shovel scraper compartment of terrain shovel of device and scraped jacket surface, therefore, tearing port also is a gap distribution; In process of production,, do not make the parallel cable distortion and fix the position that shovel is scraped device, tearing port is linearly distributed at jacket surface as long as guarantee the motion of the horizontal aspect of parallel cable; The special component of protective cover material has the present invention to have possessed the anti-performance of reversing when easily tearing.
Therefore, the present invention has following beneficial effect: it is quite convenient to open stripping, the appropriate and antitorque commentaries on classics function admirable of the power of tearing, and raw material are saved more; The inventive method is simple, and is easy to operate.
The present invention is not limited to above-mentioned preferred forms, should be appreciated that design of the present invention can be by other various forms enforcement utilizations, and they drop in protection scope of the present invention equally.