CN114296195B - Low-friction butterfly-shaped optical cable and preparation method thereof - Google Patents
Low-friction butterfly-shaped optical cable and preparation method thereof Download PDFInfo
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- CN114296195B CN114296195B CN202111645227.8A CN202111645227A CN114296195B CN 114296195 B CN114296195 B CN 114296195B CN 202111645227 A CN202111645227 A CN 202111645227A CN 114296195 B CN114296195 B CN 114296195B
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- 230000003287 optical effect Effects 0.000 title claims abstract description 42
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Abstract
The invention provides a low-friction butterfly-shaped optical cable, which comprises an inner space positioned in the center of the whole butterfly-shaped optical cable, wherein the inner space contains optical fibers and is filled with liquid lubricating materials; the elastic deformation sheath is extruded in the vertical direction of the inner layer space, two semicircular low-friction supporting washers are respectively arranged at two corners of the single side, a V-shaped form is formed from the low-friction supporting washers to the central position, and flow pipelines communicated with the inner layer space are respectively arranged along each low-friction supporting washer to the inner layer space; reinforcing pieces are respectively arranged along two sides of the horizontal direction of the inner layer space; the butterfly-shaped low-friction sheath is extruded outside the inner-layer space, the elastically deformable sheath and the reinforcing pieces at two sides. According to the invention, on the premise of maintaining the structure of the butterfly-shaped optical cable, the friction resistance of the butterfly-shaped optical cable is improved through structure adjustment and material optimization, and the hidden danger of increasing the attenuation of the optical fiber when the butterfly-shaped optical cable is laid is solved, so that the comprehensive performance of the product is optimized.
Description
Technical Field
The invention relates to the technical field of optical signal transmission in the mobile communication system technology, in particular to a low-friction butterfly-shaped optical cable and a preparation method thereof.
Background
With the development of three networks integration, the promotion application of optical fibers to the home and the rapid development of a 5G network in recent years, the speed, coverage and time delay of data transmission become the primary focus of users, how to ensure stable and effective signal transmission becomes the primary focus of optical cable design, and the butterfly-shaped optical cable is widely applied to last kilometer access and indoor and local deployment due to small volume, light weight and good bending performance, so that pipe penetration and bending deployment are often required, how to ensure stable transmission of optical fibers after bending and low-friction pipeline deployment becomes the primary problem of the butterfly-shaped optical cable, and therefore, a butterfly-shaped optical cable with excellent low-friction bending resistance is needed.
Disclosure of Invention
The invention aims to solve the existing problems, and provides the low-friction butterfly-shaped optical cable, and on the premise of maintaining the structure of the butterfly-shaped optical cable, the friction resistance of the butterfly-shaped optical cable is improved through the adjustment of the structure and the optimization of materials, and the hidden danger that the attenuation of optical fibers is increased when the butterfly-shaped optical cable is laid is solved, so that the comprehensive performance of a product is optimized.
The invention also discloses a preparation method of the low-friction butterfly-shaped optical cable.
The low-friction butterfly-shaped optical cable comprises an inner space positioned in the center of the whole butterfly-shaped optical cable, wherein the inner space contains optical fibers and liquid lubricating materials; the elastic deformation sheath is extruded in the vertical direction of the inner layer space, the upper side and the lower side of the elastic deformation sheath are in symmetrical forms, two semicircular low-friction support gaskets are respectively arranged at the two corners of the single side, a V-shaped form is formed from the low-friction support gaskets to the center position, and flow pipelines communicated with the inner layer space are respectively arranged along each low-friction support gasket to the inner layer space; reinforcing pieces are respectively arranged along two sides of the horizontal direction of the inner layer space; the butterfly-shaped low-friction sheath is extruded outside the inner-layer space, the elastically deformable sheath and the reinforcing pieces at two sides.
Further preferably, the inner layer space is connected with the low friction support gasket through a flow pipeline, the flow pipeline is divided into two parts, the lengths of the upper part and the lower part are consistent, and the width of the lower part close to the inner layer space is only half of that of the upper part.
Further optimized, the four corners of the butterfly-shaped low-friction sheath are provided with semicircular low-friction supporting washers.
Further preferably, the diameter of the low-friction support washer on the elastically deformable sheath is 1.5 times that of the low-friction support washer on the butterfly-shaped low-friction sheath.
Further optimized, the liquid lubricating material is prepared from the following components in parts by weight: 85-90 parts of silicone oil, 1-2.5 parts of viscosity improver, 4-6 parts of water-blocking particles, 0.5-1.5 parts of carbon nano tube, 0.5-1.5 parts of antifreezing agent of calcium chloride powder and 1-2 parts of antioxidant.
Further optimizing, the inner layer type space of the butterfly-shaped optical cable is provided with symmetrical elastically deformable jackets on two vertical sides, a flow pipeline is arranged in the jackets to be connected with the inner layer type space and the low-friction supporting washers, and after the elastically deformable jackets are stressed, liquid lubricating materials in the inner layer type space are pressed to crush diaphragms between the flow pipeline and the inner layer type space, so that the liquid lubricating materials are transmitted to the surface of one stressed side of the butterfly-shaped optical cable, and a lubricating layer is formed.
A preparation method of a low-friction butterfly-shaped optical cable comprises the following steps:
1) The optical fiber enters a mold core in the machine head through an oil filling device in an active paying-off mode, the paying-off tension of the optical fiber is regulated by a precision cylinder, real-time data are transmitted to a computer host through an online tension tester, tension values and ranges are set on the computer host, when the test force values exceed the tolerance ranges, the computer controls a starting valve to regulate air pressure, and therefore automatic regulation of the paying-off tension is achieved;
2) The liquid lubricating material is injected into the inner space through the oil gun, the mold core and the mold sleeve adopt a pipe extrusion mode, an inner space is formed after extrusion molding, the oil gun is directly injected into the inner space through the mold core and the mold sleeve, and the injection quantity of the liquid lubricating material is regulated through the pressure valve;
3) The elastic deformation sheath and the butterfly-shaped low friction sheath are extruded together by two extrusion molding machines, meanwhile, the elastic deformation sheath and the butterfly-shaped low friction sheath are made of low smoke halogen-free flame retardant polyolefin materials through die sleeve bearing diameters, but the elastic deformation sheath has smaller hardness and density than the butterfly-shaped low friction sheath, has high melting point, can not be extruded in a mixing way, and is extruded and molded at the same time, so that the butterfly-shaped low friction sheath is extruded from a gap between a die core and the die sleeve through one extrusion molding machine, and the elastic deformation sheath is injected from two runner ports of the die sleeve through the other extrusion molding machine and is extruded and molded through the die sleeve bearing diameters;
4) A flow pipeline shaping device is arranged between the machine head and the cooling water tank, and comprises a movable slide rail, a motor, a flow shaping contact pin and a starting/closing device; the device is divided into an upper part and a lower part, when normal production is carried out, a starting button of the host is pressed, the host transmits signals to the starting device, the starting device is used for controlling two flow forming pins at the upper end, an elastically deformable sheath is inserted to form a flow pipeline, the starting device is started, a starting motor is used for moving the flow pipeline shaping device forwards along a sliding rail according to the synchronous speed of production, after the movement of the flow pipeline shaping device is determined by a distance sensor for 30cm, a closing device is started, a pneumatic switch is used for closing a valve of the two flow forming pins at the upper end, the two flow forming pins at the upper end are retracted and return to a starting position according to the production speed, the starting device at the lower end is started while the closing device is started, the starting device is used for controlling the two flow forming pins at the lower end, an elastically deformable sheath is inserted to form a flow pipeline, the starting motor is started while the flow pipeline shaping device is moved forwards along the sliding rail according to the synchronous speed of production, after the movement of the flow pipeline shaping device is determined by a distance sensor for 30cm, the closing device is started, the two flow forming pins at the lower end are closed by the pneumatic switch, the valve of the two flow forming pins at the upper end are retracted according to the production speed, and return to the production position is continuously carried out until the circulation is stopped.
The flow pipeline shaping device comprises a flow shaping contact pin, a motor, a movable slide rail, a pneumatic switch, a distance sensor and a valve respectively; the flow forming pin is used for controlling the size and shape of the flow pipeline; the motor and the movable slide rail are used for controlling the moving speed of the flow forming contact pin; the valve and the pneumatic switch are used for controlling the starting and closing of the flow forming contact pin; the distance sensor is used to control the distance between the flow conduits.
The two locating pins and the lower part of the die sleeve are respectively provided with a runner hole for connecting with an injection port of the elastic deformation sheath extrusion molding machine head, the injection port is arranged in the bearing center, and the runner holes are connected with the injection port through an annular channel; the forming port of the bearing section of the die sleeve is shaped like four corners, supporting washers are designed, V-shaped openings are respectively formed in the upper end and the lower end of the center, low-friction supporting washers are respectively arranged at the two ends of the V-shaped openings, and tungsten steel is inlaid at the outlet of the bearing end.
The mold core adopts an extrusion pipe-extrusion combined mode, the wire passing holes of the reinforcing piece adopt an extrusion mode and are respectively positioned at two sides of the central position, the central position adopts an extrusion pipe arrangement, and after the mold core and the mold sleeve are installed, the length of the extrusion pipe is required to be flush with the opening of the mold sleeve; all angles of the mold core and the mold sleeve are excessive by adopting circular arcs.
The invention has the beneficial effects that:
the invention improves the friction resistance of the butterfly-shaped optical cable by adjusting the structure and optimizing the materials on the premise of maintaining the structure of the butterfly-shaped optical cable, solves the hidden trouble that the attenuation of the optical fiber is increased when the butterfly-shaped optical cable is laid, and optimizes the comprehensive performance of the product.
Drawings
FIG. 1 is a schematic view of the cable of the present invention;
FIG. 2 is a schematic structural view of a flow conduit shaping device;
FIG. 3 is a schematic structural view of a mold;
FIG. 4 is a schematic side view of the die sleeve;
FIG. 5 is a schematic elevational view of the die sleeve;
FIG. 6 is a schematic view of the structure of the die sleeve bearing section forming port in the die sleeve;
FIG. 7 is a schematic side view of a mold core
FIG. 8 is a schematic elevational view of a mold core;
fig. 9 is a flow chart of the flow conduit shaping apparatus.
Detailed Description
The invention is further described below with reference to the drawings and the detailed description.
As shown in fig. 1, the present invention is a low-friction butterfly-shaped optical cable, comprising an inner space 8 at the center of the entire butterfly-shaped optical cable, wherein the inner space 8 contains an optical fiber 5 and a filling liquid lubricating material 2; the elastic deformation sheath 3 is extruded in the vertical direction of the inner layer space 8, the upper side and the lower side of the elastic deformation sheath are in symmetrical shapes, two corners of a single side are respectively provided with a semicircular low-friction support gasket 4, a V-shaped shape is formed from the low-friction support gasket 4 to the center, the flow pipelines 7 communicated with the inner layer space 8 are respectively arranged from each low-friction support gasket 4 to the inner layer space 8, the deformation of the elastic deformation sheath 3 after being stressed is large, the flow pipeline 7 is arranged in the elastic deformation sheath 3, when the butterfly-shaped optical cable is stressed and blocked, the elastic deformation sheath 3 is stressed and internally presses, the liquid lubricating material 2 in the inner layer space 8 is pressed and crushes the diaphragm between the flow pipeline 7 and the inner layer space 8, and the liquid lubricating material 2 is transmitted to the surface of one stressed side of the butterfly-shaped optical cable to form a lubricating layer, so that friction and optical cable stress are reduced, and the problems of large optical fiber attenuation and even fiber breakage in the construction process are reduced; reinforcing pieces 6 are respectively arranged along the two sides of the horizontal direction of the inner layer space 8; the butterfly-shaped low-friction sheath 1 is extruded outside the inner space 8, outside the elastically deformable sheath 3 and outside the stiffeners 6 on both sides.
The circular inner space 8 enlarges the movable space of the optical fiber; the liquid lubricating material 2 provides a storage space to avoid the direct contact between the optical fiber and the sheath material, and increases the movable space of the optical fiber, thereby solving the problems of large attenuation and even breakage of the optical fiber in the process of manufacture and construction.
The flow pipeline 7 is divided into two parts, the lengths of the upper part and the lower part are consistent, the width of the lower half part close to the inner layer space 8 is only half of the width of the upper half part, the width of the lower half part is reduced to be more beneficial to concentrating pressure, the liquid lubricating material 2 is convenient to squeeze the diaphragm between the flow pipeline 7 and the inner layer space 8 under pressure, 4 flow pipelines 7 corresponding to the low friction support gasket 4 are single, and the flow pipelines are distributed in sequence from top to bottom, from left to right and according to fixed lengths.
The four corners of butterfly-shaped low friction sheath all are equipped with semicircular low friction support packing ring 4, but the diameter of the low friction support packing ring 4 on the elastically deformable sheath is 1.5 times of the low friction support packing ring 4 diameter on the butterfly-shaped low friction sheath, when the butterfly-shaped optical cable construction appears blocking or buckling, because but the low friction support packing ring 4 diameter of elastically deformable sheath 3 department is big, so can atress earlier, can form deformation after elastically deformable sheath 3 atress to convey liquid lubricating material 2 to low friction support packing ring 4 surface through flow conduit 7, and then form the lubrication cushion, with this reduction optical cable atress. When the height of the low-friction support gasket 4 at the elastically deformable sheath 3 is consistent with the height of the low-friction support gaskets 4 at the four corners of the two sides of the low-friction butterfly-shaped optical cable after being deformed under force, the contact surface of the butterfly-shaped optical cable is changed from planar contact to contact of four points, so that the contact area is reduced, and the friction force during the construction of the butterfly-shaped optical cable is reduced.
A preparation method of a low-friction butterfly-shaped optical cable comprises the following steps:
1) The optical fiber enters a mold core in the machine head through an oil filling device in an active paying-off mode, the paying-off tension of the optical fiber is regulated by a precision cylinder, real-time data are transmitted to a computer host through an online tension tester, tension values and ranges are set on the computer host, when the test force values exceed the tolerance ranges, the computer controls a starting valve to regulate air pressure, and therefore automatic regulation of the paying-off tension is achieved;
2) The liquid lubricating material is injected into the inner space through the oil gun, the mold core and the mold sleeve adopt a pipe extrusion mode, an inner space is formed after extrusion molding, the oil gun is directly injected into the inner space through the mold core and the mold sleeve, and the injection quantity of the liquid lubricating material is regulated through the pressure valve;
3) The elastic deformation sheath and the butterfly-shaped low friction sheath are extruded by two extrusion molding machines together, meanwhile, the elastic deformation sheath and the butterfly-shaped low friction sheath are made of low smoke halogen-free flame retardant polyolefin materials through die sleeve bearing, but the elastic deformation sheath 3 has smaller hardness and density than the butterfly-shaped low friction sheath 1, has high melting point, can not be extruded in a mixing way, and is required to be extruded at the same time, so that the butterfly-shaped low friction sheath 1 is extruded from a gap between a die core and the die sleeve through one extrusion molding machine, and the elastic deformation sheath 3 is injected from two runner ports of the die sleeve through the other extrusion molding machine and is extruded and shaped through the die sleeve bearing;
4) A flow pipeline shaping device is arranged between the machine head and the cooling water tank, and comprises a movable slide rail, a motor, a flow shaping contact pin and a starting/closing device; the device is divided into an upper part and a lower part, when normal production is carried out, a starting button of the host is pressed, the host transmits signals to the starting device, the starting device is used for controlling two flow forming pins at the upper end, the elastically deformable sheath 3 is inserted to form a flow pipeline 7, the starting device is started, a starting motor is started, the flow pipeline shaping device is moved forwards along a sliding rail according to the synchronous speed of production, the valve of the two flow forming pins at the upper end is closed through a pneumatic switch after the movement of the valve is determined by a distance sensor for 30cm, the two flow forming pins at the upper end are retracted and returned to the starting position according to the production speed, the starting device at the lower end is started while the closing device is started, the starting device is used for controlling the two flow forming pins at the lower end, the elastically deformable sheath 3 is inserted to form the flow pipeline 7, the starting device is started while the starting motor is started, the flow pipeline shaping device is moved forwards along the sliding rail according to the synchronous speed of production, the valve of the two flow forming pins at the lower end is closed through the pneumatic switch after the movement of the valve for 30cm, the valve of the upper end is closed, the two flow forming pins at the lower end are retracted and returned to the starting position according to the production speed, and the production cycle is continuously completed until the production cycle is completed.
The liquid lubricating material 2 is incompatible with the optical fiber and the sheath material, so that the hidden trouble that the service life of the product is shortened due to the damage of the optical fiber caused by the compatibility problem is solved; the liquid lubricating material is prepared from the following components in parts by weight: 85-90 parts of silicone oil, 1-2.5 parts of viscosity improver, 4-6 parts of water-blocking particles, 0.5-1.5 parts of carbon nano tube, 0.5-1.5 parts of antifreezing agent of calcium chloride powder and 1-2 parts of antioxidant; the liquid lubricating material 2 takes silicone oil as a main base material, and is added with a viscosity improver: the viscosity is reduced, and the fluidity and the mobility of the optical fiber are improved; carbon nanotubes are added: the carbon nano tube can absorb hydrogen so as to reduce OH generated by the hydrogen and the optical fiber - The stability of the optical fiber is improved; antifreezing agent added with water-blocking particles and calcium chloride powder: therefore, the water blocking performance and the anti-freezing performance are improved, and the application scene of the product is enlarged.
As shown in fig. 2, the flow pipeline shaping device comprises a flow shaping contact pin, a motor, a sliding rail, a pneumatic switch, a distance sensor and a valve respectively; the flow pipeline shaping device is divided into an upper part and a lower part, the upper part and the lower part are identical in structure and are arranged oppositely up and down, so that the upper part is independently introduced to form the flow pipeline shaping device, the flow pipeline shaping device mainly comprises a sliding rail 17, a flow shaping pin fixing seat 18 is arranged on the sliding rail, a group of flow shaping pins 19 are symmetrically connected to the lower end of the flow shaping pin fixing seat through fixing screws, a valve 20 on the flow shaping pin is connected with a pneumatic switch 21 through an air pipe 26, one end of the flow shaping pin fixing seat is connected with a motor 22 through a connecting piece 25, and a distance sensor 23 is respectively arranged on the sliding rail and the flow shaping pin fixing seat so as to control the moving distance; the pneumatic switch and the motor are connected with the host 24 through data lines, the host controls the motor to rotate to drive the flow forming pin fixing seat to move in the left-right horizontal direction on the sliding rail, and meanwhile, the host controls the pneumatic switch to work to drive the flow forming pin to move in the up-down horizontal direction to complete the whole control;
it should be noted that: the slide rail, the motor and the pneumatic switch are all fixed on a fixing frame between the machine head and the cooling water tank, and are not shown in the figure.
The flow forming pin is used for controlling the size and shape of the flow pipeline; the motor and the sliding rail are used for controlling the moving speed of the flow forming contact pin; the valve and the pneumatic switch are used for controlling the starting and closing of the flow forming contact pin; the distance sensor is used for controlling the distance between the flow pipelines; the working flow of the flow pipeline shaping device is shown in a flow chart 9:
firstly, starting a starting button of a flow pipeline shaping device on a host; the host computer transmits the data to the flow forming needle inserting valve through the data wire, the flow forming needle inserting valve is started, and then the pneumatic switches of the two flow forming needle inserting valves at the upper end are started;
then, the host computer transmits the real-time production rate to the motor and starts the upper motor, the upper two flow forming pins are inserted into the sheath to form a flow pipeline and move according to the motor rotation rate, and the upper two flow forming pins move to the distance sensor along the sliding rail; when the two flow forming pins at the upper end move to a required distance, closing the pneumatic switches of the two flow forming pins at the upper end, retracting the two flow forming pins at the upper end to a zero position, enabling the two flow forming pins at the upper end to reach an initial position according to the production rate, and simultaneously, opening the pneumatic switches of the two flow forming pins at the lower end;
then, the host computer transmits the real-time production rate to the motor and starts the motor at the lower end, two flow forming pins at the lower end are inserted into the sheath to form a flow pipeline and move according to the rotation rate of the motor, and the two flow forming pins at the lower end move to the distance sensor along the sliding rail; after the two flow forming pins at the lower end move to the required distance, restarting the pneumatic switch of the two flow forming pins at the upper end, and repeating the whole process; and simultaneously closing the pneumatic switch of the two flow forming pins at the lower end, withdrawing the two flow forming pins at the lower end to the zero position, and enabling the two flow forming pins at the lower end to reach the initial position according to the production rate until a closing button of a flow pipeline shaping device on the host is opened, so that the whole working flow is finished.
As shown in fig. 4-6, the elastically deformable sheath 3 and the butterfly-shaped low-friction sheath 1 are co-extruded by two extruders, and the two materials are simultaneously supported by a die sleeve and cannot be mixed and extruded, but are required to be extruded and molded simultaneously, so that the die is improved: the upper and lower parts of the two positioning pin holes 9 of the die sleeve are respectively provided with a runner hole 10 for connecting with an injection hole of an elastically deformable sheath extrusion molding machine head, and the injection hole 13 is arranged in the bearing center (the function is that the positioning accuracy of two materials is ensured, the situation that the two materials are fused to influence the material performance after contacting in the non-bearing forming stage is avoided), the runner holes 10 are connected with the injection hole 13 through an annular channel 14 (the function is that the pressure of the injection hole is enhanced by annular replacement straight line connection, and the distance of the forming section is reduced because the injection hole is arranged in the bearing center, the pressure is enhanced in the injection section, and the product forming effect is effectively ensured); the shape of the forming opening 15 of the bearing section of the die sleeve is four corners, the low-friction supporting washers 11 are designed, the V-shaped openings 12 are respectively arranged at the upper end and the lower end of the center, the low-friction supporting washers 11 are respectively arranged at the two ends of the V-shaped openings, tungsten steel is inlaid at the outlet of the bearing end, the overall wear resistance is improved, and the service life is prolonged.
As shown in fig. 7-8, the mold core adopts a combination mode of extrusion and pipe extrusion, the wire passing holes 16 of the reinforcement are respectively positioned at two sides of the central position, the central position adopts a pipe extrusion arrangement, and the positioning rod of the mold core and the positioning Kong Duicha of the mold sleeve form a mold (as shown in fig. 3) after installation, and the length of the pipe extrusion needs to be flush with the mouth of the mold sleeve; all angles of the mold core and the mold sleeve are excessive in arc, so that the phenomenon of dead material accumulation in the extrusion molding process is avoided.
The invention improves the friction resistance of the butterfly-shaped optical cable by adjusting the structure and optimizing the materials on the premise of maintaining the structure of the butterfly-shaped optical cable, solves the hidden trouble that the attenuation of the optical fiber is increased when the butterfly-shaped optical cable is laid, and optimizes the comprehensive performance of the product.
The present invention has been described in terms of the preferred embodiments thereof, and it should be understood by those skilled in the art that various modifications can be made without departing from the principles of the invention, and such modifications should also be considered as being within the scope of the invention.
Claims (9)
1. The low-friction butterfly-shaped optical cable is characterized by comprising an inner space (8) positioned in the center of the whole butterfly-shaped optical cable, wherein the inner space (8) contains an optical fiber (5) and a filling liquid lubricating material (2); the elastic deformation sheath (3) is extruded in the vertical direction of the inner layer space (8), the upper side and the lower side of the elastic deformation sheath are in symmetrical forms, two semicircular low-friction support washers (4) are respectively arranged at two corners of a single side, a V-shaped form is formed from the low-friction support washers (4) to the central position, and flow pipelines (7) communicated with the inner layer space (8) are respectively arranged along each low-friction support washer (4) to the inner layer space (8); reinforcing pieces (6) are respectively arranged on two sides of the inner space (8) in the horizontal direction; the butterfly-shaped low-friction sheath (1) is extruded outside the inner space (8), outside the elastically deformable sheath (3) and outside the reinforcing pieces (6) at the two sides.
2. The low-friction butterfly cable of claim 1, wherein: the inner layer type space (8) is connected with the low-friction support gasket (4) through the flow pipeline (7), the flow pipeline (7) is divided into two parts, the lengths of the upper part and the lower part are consistent, and the width of the lower part close to the inner layer type space (8) is only half of that of the upper part.
3. The low-friction butterfly cable of claim 1, wherein: the butterfly-shaped low-friction sheath (1) is characterized in that semicircular low-friction support washers (4) are arranged at four corners of the butterfly-shaped low-friction sheath.
4. The low-friction butterfly cable of claim 1, wherein: the diameter of the low-friction supporting washer (4) on the elastically deformable sheath is 1.5 times that of the low-friction supporting washer (4) on the butterfly-shaped low-friction sheath.
5. The low-friction butterfly cable of claim 1, wherein: the liquid lubricating material (2) is prepared from the following components in parts by weight: 85-90 parts of silicone oil, 1-2.5 parts of viscosity improver, 4-6 parts of water-blocking particles, 0.5-1.5 parts of carbon nano tube, 0.5-1.5 parts of antifreezing agent of calcium chloride powder and 1-2 parts of antioxidant.
6. A method of making a low friction butterfly cable according to any one of claims 1 to 5, characterized in that: the method comprises the following steps:
1) The optical fiber (5) enters a mold core in the machine head through an oil filling device in an active paying-off mode, paying-off tension of the optical fiber (5) is regulated by a precision cylinder, real-time data are transmitted to a computer host through an online tension tester, a tension value and a range are set on the computer host, when the test force value exceeds the tolerance range, the computer controls a starting valve to regulate air pressure, and therefore automatic regulation of paying-off tension is achieved;
2) The liquid lubricating material (2) is injected into the inner space (8) through an oil gun, the mold core and the mold sleeve adopt a pipe extrusion mode, the inner space (8) is formed after extrusion molding, the oil gun is directly injected into the inner space (8) through the mold core and the mold sleeve, and the injection quantity of the liquid lubricating material (2) is regulated through a pressure valve;
3) The elastic deformation sheath (3) and the butterfly-shaped low-friction sheath (1) are extruded by two extruders together, meanwhile, the elastic deformation sheath (3) and the butterfly-shaped low-friction sheath (1) are made of low-smoke halogen-free flame-retardant polyolefin materials through die sleeve bearing diameters, the butterfly-shaped low-friction sheath (1) is extruded from a gap between a die core and the die sleeve through one extruder, and the elastic deformation sheath (3) is injected from two runner ports of the die sleeve through the other extruder and extruded and shaped through the die sleeve bearing diameters;
4) A flow pipeline shaping device is arranged between the machine head and the cooling water tank, and comprises a movable slide rail, a motor, a flow shaping contact pin and a starting/closing device; the device is divided into an upper part and a lower part, when normal production is carried out, a starting button of the host is pressed, the host transmits signals to the starting device, the starting device is used for controlling two flow forming pins at the upper end, the elastically deformable sheath (3) is inserted to form a flow pipeline (7), the starting device is started, a starting motor is started, the flow pipeline shaping device is moved forwards along a sliding rail according to the synchronous speed of production, after the movement of the flow pipeline shaping device is determined by a distance sensor for 30cm, a closing device is started, a valve of the two flow forming pins at the upper end is closed by a pneumatic switch, the two flow forming pins at the upper end are retracted and returned to a starting position according to the production speed, the starting device at the lower end is started while the closing device is started, the starting device is used for controlling the two flow forming pins at the lower end, the elastically deformable sheath (3) is inserted to form the flow pipeline (7), the starting motor is started while the flow pipeline shaping device is moved forwards along the sliding rail according to the synchronous speed of production, after the movement of the flow pipeline shaping device is determined by a distance sensor for 30cm, the closing device is started, the valve of the two flow forming pins at the upper end is closed by the pneumatic switch, the two flow forming pins at the upper end are closed, the two flow forming pins are closed and the two flow forming pins at the lower end are continuously recycled to the starting position according to the production speed.
7. The method of manufacturing a low-friction butterfly cable according to claim 6, wherein: the flow pipeline shaping device comprises a flow shaping contact pin, a motor, a movable slide rail, a pneumatic switch, a distance sensor and a valve respectively; the flow forming pin is used for controlling the size and shape of the flow pipeline (7); the motor and the movable slide rail are used for controlling the moving speed of the flow forming contact pin; the valve and the pneumatic switch are used for controlling the starting and closing of the flow forming contact pin; the distance sensor is used for controlling the distance between the flow pipes (7).
8. The method of manufacturing a low-friction butterfly cable according to claim 6, wherein: the two locating pins and the lower part of the die sleeve are respectively provided with a runner hole for connecting with an injection port of the elastic deformation sheath extrusion molding machine head, the injection port is arranged in the bearing center, and the runner holes are connected with the injection port through an annular channel; the forming port of the bearing section of the die sleeve is shaped like four corners, supporting washers are designed, V-shaped openings are respectively formed in the upper end and the lower end of the center, low-friction supporting washers are respectively arranged at the two ends of the V-shaped openings, and tungsten steel is inlaid at the outlet of the bearing end.
9. The method of manufacturing a low-friction butterfly cable according to claim 6, wherein: the mold core adopts an extrusion pipe-extrusion combined mode, the wire passing holes of the reinforcing piece (6) adopt an extrusion mode and are respectively positioned at two sides of the central position, the central position adopts an extrusion pipe arrangement, and after the mold core and the mold sleeve are installed, the length of the extrusion pipe is required to be flush with the opening of the mold sleeve; all angles of the mold core and the mold sleeve are excessive by adopting circular arcs.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002333555A (en) * | 2001-05-07 | 2002-11-22 | Sumitomo Electric Ind Ltd | Optical fiber, optical fiber coil, optical fiber coil unit, optical fiber transmission line and method for producing optical fiber |
| CN202033502U (en) * | 2011-05-04 | 2011-11-09 | 河南省通信电缆有限公司 | Indoor optical cable |
| CN102807695A (en) * | 2011-05-31 | 2012-12-05 | 江苏南方通信科技有限公司 | Low smoke halogen-free flame retardant sheath material for optical fiber cable, and preparation method thereof |
| CN202710811U (en) * | 2012-07-03 | 2013-01-30 | 广东亨通光电科技有限公司 | Butterfly-shaped indoor incoming optical cable |
| CN204679691U (en) * | 2015-05-12 | 2015-09-30 | 江苏中天科技股份有限公司 | Low-smoke non-halogen flame-retardant low friction butterfly leading in cable |
| CN208506333U (en) * | 2018-08-09 | 2019-02-15 | 浙江亨通光网物联科技有限公司 | Low friction high fire-retardance butterfly optical cable |
| CN110879446A (en) * | 2019-11-30 | 2020-03-13 | 江苏长飞中利光纤光缆有限公司 | Manufacturing method of invisible butterfly-shaped optical cable |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6778744B2 (en) * | 1999-10-08 | 2004-08-17 | Fitel Usa Corp. | Dielectric optical fiber cable having reduced preferential bending |
-
2021
- 2021-12-30 CN CN202111645227.8A patent/CN114296195B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002333555A (en) * | 2001-05-07 | 2002-11-22 | Sumitomo Electric Ind Ltd | Optical fiber, optical fiber coil, optical fiber coil unit, optical fiber transmission line and method for producing optical fiber |
| CN202033502U (en) * | 2011-05-04 | 2011-11-09 | 河南省通信电缆有限公司 | Indoor optical cable |
| CN102807695A (en) * | 2011-05-31 | 2012-12-05 | 江苏南方通信科技有限公司 | Low smoke halogen-free flame retardant sheath material for optical fiber cable, and preparation method thereof |
| CN202710811U (en) * | 2012-07-03 | 2013-01-30 | 广东亨通光电科技有限公司 | Butterfly-shaped indoor incoming optical cable |
| CN204679691U (en) * | 2015-05-12 | 2015-09-30 | 江苏中天科技股份有限公司 | Low-smoke non-halogen flame-retardant low friction butterfly leading in cable |
| CN208506333U (en) * | 2018-08-09 | 2019-02-15 | 浙江亨通光网物联科技有限公司 | Low friction high fire-retardance butterfly optical cable |
| CN110879446A (en) * | 2019-11-30 | 2020-03-13 | 江苏长飞中利光纤光缆有限公司 | Manufacturing method of invisible butterfly-shaped optical cable |
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