Non-binding cable production system and process

Abstract

The present invention discloses a non-binding type cabling production system and process. The input end of the SZ twisting device has a pay-off frame, a pay-off traction wheel and a twisting unit pay-off frame. The output end of the SZ twisting device has a twisting machine, a hot melt adhesive machine, a heating device, a pressure guide wheel group, a take-up traction machine and a take-up frame. The pay-off traction wheel transmits the central reinforcement transmitted from the pay-off frame to the SZ twisting device for twisting with the twisted unit transmitted from the twisting unit pay-off frame. The hot melt adhesive adheres the twisted unit to the surface of the central reinforcement. The twisted unit is bonded again by the heating device to form a cable core. The take-up traction machine compacts the cable core from the SZ twisting device through the pressure guide wheel group and then transmits it to the take-up frame. Through the above manner, the non-binding type cabling production system and process of the present invention can prevent quality failure accidents caused by too large or too small yarn, reduce the operation time of changing yarn in the cabling process, reduce cabling accidents caused by yarn throwing and yarn breaking, and each unit of the cable core is easy to separate and convenient to connect.

Description

Technical Field

[0001] The present invention relates to the field of optical cable technology, and in particular to a non-binding type cable production system and process. Background Art

[0002] The loose tube of the traditional stranded optical cable is twisted together in S-type and Z-type, that is, SZ forward and reverse twisting, to enhance the tensile performance of the optical cable. The cable core is fixed with a yarn with a certain tension outside the cable core. After forming a semi-finished product, it enters the sheathing process for optical cable sheath production.

[0003] The cable core needs a certain yarn tension to fix the yarn. If the yarn tension is too large, it will cause a certain amount of extrusion on the optical fiber bundle tube to form yarn marks. In severe cases, it will cause damage to the bundle tube, excessive optical fiber attenuation, steps, etc., and it is difficult to peel off the bundle tube during subsequent construction. It is necessary to cut the yarn on the surface of the cable core one by one to peel off the casing. After the yarn is cut, the remaining casing in the optical cable will also be loose.

[0004] If the yarn tension is too small, the cable core will be loose, and the cable will be broken in the subsequent sheathing process. Especially in the summer when the temperature is high and the bundle tube is soft, a larger yarn tension will cause the bundle tube to be punctured, and a smaller puncture tension will cause the cable to be thrown or the sheath to be broken. It is not easy to determine the specific range of yarn tension. Summary of the invention

[0005] The main technical problem solved by the present invention is to provide a non-binding type cable production system and process, which does not require binding to twist and bond the loose tube or filling rope twisted units around the central reinforcement, can prevent the occurrence of optical cable quality unqualified accidents caused by too large or too small binding, reduces the yarn replacement operation time in the cabling process, reduces the cabling accidents caused by yarn throwing and yarn breaking during binding, and makes the units of the cable core easy to separate and convenient to connect.

[0006] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a non-binding yarn type cable production system, including: a frame and an SZ stranding device arranged on the frame, the input end of the SZ stranding device is provided with a pay-off frame, a pay-off traction wheel and a stranding unit pay-off frame, the pay-off traction wheel is used to transmit the central reinforcement member transmitted by the pay-off frame to the SZ stranding device and then strand it with the stranding unit transmitted from the stranding unit pay-off frame,

[0007] The output end of the SZ twisting device is provided with a twisting machine, a pressure guide wheel group, a wire taking-up traction machine and a wire taking-up frame. The twisting machine twists and connects the twisting units on the surface of the central reinforcement to form a cable core. The wire taking-up traction machine compacts the cable core coming out of the SZ twisting device through the pressure guide wheel group and then transmits it to the wire taking-up frame.

[0008] In a preferred embodiment of the present invention, the central reinforcement is steel wire, steel strand, FRP, steel wire or FRP with a cushion layer, wherein the outer diameter of the steel wire is 1.0~3.5mm, the outer diameter of the steel strand is 3.0mm or 3.6mm, and the outer diameter of the steel wire or FRP with a cushion layer is 3.5~8.0mm.

[0009] In a preferred embodiment of the present invention, the length of the SZ twisting device is 6-8 m, and the number of twisting turns is 4-8 turns.

[0010] In a preferred embodiment of the present invention, the twisting machine includes a center hole, a twisting through hole and a magnetic bead hole. The center hole is used for the central reinforcement to pass through. The twisting through hole directly penetrates from the outer surface of the twisting machine to the center hole position for adding hot melt adhesive. The magnetic bead holes are evenly distributed around the center hole for the loose sleeve or filling rope to pass through. The rotation direction of the twisting machine is left and right.

[0011] In a preferred embodiment of the present invention, a hot melt glue machine is further included. The hot melt glue machine is arranged below the SZ twisting device. The hot melt glue machine includes a conduit and a glue gun connected to the output end of the conduit. The glue spray head of the glue gun is directly directed toward the twisting through hole in the twisting machine.

[0012] The hot melt adhesive machine is used to evenly coat the hot melt adhesive on the surface of the center reinforcement member filled in the stranding machine, and then the stranding unit is stranded and bonded to the surface of the center reinforcement member by the hot melt adhesive.

[0013] In a preferred embodiment of the present invention, the hot melt adhesive is a polyolefin, ethylene-vinyl acetate, polyester, polyamide, or polyurethane hot melt adhesive.

[0014] In a preferred embodiment of the present invention, a heating device is further included. The heating device is a high-frequency heater or an electric heater. The heating device is arranged at the output side of the stranding machine. The heating device bonds the stranded units again to form a cable core.

[0015] In a preferred embodiment of the present invention, the twisting unit pay-off frame is used for paying out the twisting unit, and the twisting unit is a loose tube twisting unit or a loose tube twisting unit with a filling rope.

[0016] In a preferred embodiment of the present invention, the pressure guide wheel group includes at least two single guide wheels symmetrically arranged up and down and left and right, the outer diameter of the guide wheel is 36~48mm, and the radius of the guide wheel groove is 4.5~14mm.

[0017] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a non-binding yarn type cabling production process, using the non-binding yarn type cabling production system, the steps are as follows:

[0018] S1, wire feeding: start the wire-paying traction wheel, which uniformly transfers the central reinforcement on the wire-paying frame to the SZ stranding device, and then sends it into the center hole of the stranding machine;

[0019] S2. Gluing: Turn on the hot melt glue machine, and use the glue gun to spray glue directly into the twisting through hole of the twisting machine. The hot melt adhesive is evenly coated on the surface of the central reinforcement filled in the twisting machine. The glue output of the hot melt glue machine is controlled by adjusting the size of the hot melt glue machine positioner, and the adjustment range is 0.5~9.5V;

[0020] S3, primary twisting: the twisting units pass through the magnetic bead holes and are evenly distributed around the central hole, and the twisting units are output through the twisting unit pay-off frame. The hot melt adhesive twists and bonds the twisting units to the surface of the central reinforcement. The twisting machine rotates left and right;

[0021] S4, secondary twisting: the central reinforcement member with twisted units in step S3 is subjected to a heating device to bond the twisted units again to form a cable core, wherein the outer diameter of the cable core is 4.0-12.0 mm, and the number of cores of the cable core is 2-576;

[0022] S5, cable output: Start the take-up traction machine, compact the cable core after secondary twisting through the pressure guide wheel group and then transfer it to the take-up rack.

[0023] The beneficial effects of the present invention are as follows: the non-binding type cable production system and process of the present invention does not require yarn binding to twist and bond the loose tube or filling rope twisted units around the central reinforcement, which can prevent the occurrence of optical cable quality unqualified accidents caused by the yarn being too large or too small, reduces the yarn replacement operation time in the cabling process, reduces cabling accidents caused by yarn throwing and yarn breaking during yarn binding, and the various units of the cable core are easy to separate. Since there is no need to cut the yarn and slowly separate the various twisted units during the non-binding construction, the connection is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0025] Figure 1 It is a structural schematic diagram of a preferred embodiment of the non-binding yarn cable production system of the present invention;

[0026] Figure 2 It is a schematic cross-sectional structure diagram of a stranding machine in the non-binding type cabling production system of the present invention;

[0027] The markings of the components in the attached drawings are as follows: 1. Pay-off frame, 2. Pay-off traction wheel, 3. SZ stranding device, 4. Control cabinet, 5. Stranding machine, 501. Magnetic bead hole, 502. Stranding through hole, 503. Center hole,

[0028] 6. Hot melt glue machine, 7. Conduit, 8. Glue gun, 9. Center reinforcement, 10. Twisted unit pay-off rack, 11. Cable core, 12. Heating device, 13. Pressure guide wheel set, 14. Take-up traction machine, 15. Take-up rack. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1 to Figure 2 , the embodiment of the present invention includes:

[0031] Embodiment 1

[0032] A non-binding type cable production system comprises: a frame and an SZ twisting device 3 arranged on the frame, the input end of the SZ twisting device 3 is sequentially provided with a pay-off frame 1 and a pay-off traction wheel 2, and the output end of the SZ twisting device 3 is sequentially provided with a twisting machine 5, a hot melt adhesive machine 6, a heating device 12, a pressure guide wheel group 13, a take-up traction machine 14 and a take-up frame 15.

[0033] The pay-off traction wheel 2 is used to transfer the central reinforcement 9 delivered from the pay-off frame 1 to the SZ stranding device 3 and then strand it with the stranding unit 3 delivered from the stranding unit pay-off frame 10. The hot melt adhesive machine 6 is used to evenly coat the hot melt adhesive on the surface of the central reinforcement 9 filled in the stranding machine 5.

[0034] The twisted units are then twisted and bonded to the surface of the central reinforcement 9 by hot melt adhesive, and then bonded again by a heating device 12 to form a cable core. The take-up traction machine 14 is used to compact the cable core coming out of the SZ twisting device 3 through a pressing guide wheel group 13 and then transfer it to the take-up frame 15.

[0035] The non-binding type cable production system further comprises a control cabinet 4, through which the continuity and reliability of production are ensured, and manpower and material resources are reduced.

[0036] Furthermore, the central reinforcement 9 is a steel wire, a steel strand, a steel wire with a cushion layer or FRP, wherein the outer diameter of the steel wire is 1.0~3.5mm, the outer diameter of the steel strand is 3.0mm or 3.6mm, and the outer diameter of the steel wire with a cushion layer is 3.5~8.0mm; the length of the SZ twisting device 3 is 6~8m, and the number of twisting turns is 4~8 turns.

[0037] Furthermore, the twisting machine 5 includes a center hole 503, a twisting through hole 502 and a magnetic bead hole 501. The center hole 503 is used for the center reinforcement 9 to pass through. The twisting through hole 502 directly penetrates from the outer surface of the twisting machine to the center hole 503 for adding hot melt adhesive. The magnetic bead holes 501 are evenly distributed around the center hole 503 for the loose sleeve or filling rope to pass through. The rotation direction of the twisting machine 5 is left and right rotation.

[0038] The hot melt glue machine 6 is arranged below the SZ twisting device 3. The hot melt glue machine 6 includes a conduit 7 and a glue gun 8 connected to the output end of the conduit 7. The glue spray head of the glue gun 8 is directly facing the twisting through hole 502 in the twisting machine. The hot melt glue machine 6 is used to evenly coat the hot melt adhesive on the surface of the center reinforcement 9 filled in the twisting machine 5, and then twist and bond the twisting unit to the surface of the center reinforcement 9 through the hot melt adhesive.

[0039] The heating device 12 is disposed at the output side of the stranding machine 5, and the heating device 12 bonds the stranded units again to form a cable core.

[0040] Specifically, the twisting unit pay-off frame 10 is used for paying off the twisting unit, and the twisting unit is a loose tube twisting unit or a loose tube twisting unit with a filling rope; the hot melt adhesive is a polyolefin, ethylene-vinyl acetate, polyester, polyamide, or polyurethane hot melt adhesive.

[0041] The pressure guide wheel group 12 includes at least two single guide wheels symmetrically arranged up and down and left and right. The outer diameter of the guide wheel is 36~48mm, and the radius of the guide wheel groove is 4.5~14mm, which can further compact the twisted unit and ensure the strength and reliability of the cable core.

[0042] Embodiment 2

[0043] A non-binding type cabling production process, using the non-binding type cabling production system of the first embodiment, the steps are as follows:

[0044] S1, wire feeding: start the pay-off traction wheel 2, the pay-off traction wheel 2 uniformly transfers the central reinforcement member 9 on the pay-off frame 1 to the SZ stranding device 3, and then sends it into the central hole 503 of the stranding machine 5.

[0045] S2. Gluing: Turn on the hot melt glue machine 6, and spray glue directly into the twisting through hole 502 of the twisting machine 5 through the glue spray head of the glue gun 8. The hot melt adhesive is evenly coated on the surface of the central reinforcement member 9 filled in the twisting machine 5. The glue output of the hot melt glue machine 6 is controlled by adjusting the size of the hot melt glue machine positioner, and the adjustment range is 0.5~9.5V.

[0046] S3, primary twisting: the twisting units pass through the magnetic bead holes 501 and are evenly distributed around the central hole 503, and are output through the twisting unit pay-off frame 10. The hot melt adhesive twists and bonds the twisting units to the surface of the central reinforcement 9. The twisting machine 5 rotates left and right.

[0047] S4, secondary twisting: the central reinforcement member 9 with the twisted units in step S3 is passed through a heating device 12 to bond the twisted units again to form a cable core, wherein the outer diameter of the cable core is 4.0-12.0 mm, and the number of cores of the cable core is 2-576.

[0048] S5, cable output: start the take-up traction machine 14, and compact the cable core after secondary twisting through the pressing guide wheel group 13 and then transfer it to the take-up frame 15 to form a large cable core.

[0049] The beneficial effects of the non-binding type cable production system and process of the present invention are:

[0050] The loose tube or filling rope stranding unit is twisted and bonded around the central reinforcement without yarn binding, which prevents the occurrence of optical cable quality failure caused by too large or too small yarn binding;

[0051] The SZ stranding process does not require yarn binding, which reduces the yarn changing operation time in the cabling process and the cabling accidents caused by yarn throwing and yarn breaking during yarn binding;

[0052] Each unit of the cable core is easy to separate. Since there is no need to cut the yarn during the non-binding construction, each twisted unit can be slowly separated, making the connection convenient.

[0053] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A non-binding type cable production system, characterized in that: include: A frame and an SZ twisting device arranged on the frame, wherein a pay-off frame, a pay-off traction wheel and a twisting unit pay-off frame are arranged at the input end of the SZ twisting device, and the pay-off traction wheel is used to transmit the central reinforcement member transmitted from the pay-off frame to the SZ twisting device and then twist it with the twisting unit transmitted from the twisting unit pay-off frame, The output end of the SZ stranding device is equipped with a stranding machine, a pressure guide wheel group, a wire take-up traction machine and a wire take-up frame. The stranding machine twists and connects the stranding units on the surface of the central reinforcement to form a cable core. The wire take-up traction machine compacts the cable core from the SZ stranding device through the pressure guide wheel group and then transmits it to the wire take-up frame. The twisting machine includes a center hole, a twisting through hole and a magnetic bead hole. The center hole is used for the center reinforcement to pass through. The twisting through hole is directly penetrated from the outer surface of the twisting machine to the center hole position for adding hot melt adhesive. The magnetic bead holes are evenly distributed around the center hole for the loose tube or filling rope to pass through. The twisting machine rotates left and right. The invention also includes a hot melt adhesive machine, which is arranged below the SZ twisting device. The hot melt adhesive machine includes a conduit and a glue gun connected to the output end of the conduit. The glue spray head of the glue gun is directly facing the twisting through hole in the twisting machine. The hot melt adhesive machine is used to evenly coat the hot melt adhesive on the surface of the central reinforcement filled in the twisting machine, and then the twisting unit is twisted and bonded to the surface of the central reinforcement by the hot melt adhesive, wherein the hot melt adhesive is a polyolefin, ethylene-vinyl acetate, polyester, polyamide, or polyurethane hot melt adhesive. It also includes a heating device, which is a high-frequency heater or an electric heater. The heating device is arranged on the output side of the stranding machine, and the heating device bonds the stranded units again to form a cable core.

2. The non-binding cable production system according to claim 1 is characterized in that: The central reinforcement is steel wire, steel strand, FRP, steel wire or FRP with a cushion layer, wherein the outer diameter of the steel wire is 1.0~3.5mm, the outer diameter of the steel strand is 3.0mm or 3.6mm, and the outer diameter of the steel wire or FRP with a cushion layer is 3.5~8.0mm.

3. The non-binding cable production system according to claim 1 is characterized in that: The length of the SZ twisting device is 6~8m, and the number of twisting turns is 4~8 turns.

4. The non-binding cable production system according to claim 1, characterized in that: The stranding unit pay-off frame is used for paying off the stranding unit, and the stranding unit is a loose tube stranding unit or a loose tube stranding unit with a filling rope.

5. The non-binding cable production system according to claim 1, characterized in that: The pressure guide wheel group includes at least two single guide wheels symmetrically arranged up and down and left and right. The outer diameter of the guide wheel is 36~48mm, and the radius of the guide wheel groove is 4.5~14mm.

6. A non-binding cable production process, characterized in that: The non-binding type cable production system according to any one of claims 1 to 5 is used, and the steps are as follows: S1, wire feeding: start the wire-paying traction wheel, which uniformly transfers the central reinforcement on the wire-paying frame to the SZ stranding device, and then sends it into the center hole of the stranding machine; S2. Gluing: Turn on the hot melt glue machine, and use the glue gun to spray glue directly into the twisting through hole of the twisting machine. The hot melt adhesive is evenly coated on the surface of the central reinforcement filled in the twisting machine. The glue output of the hot melt glue machine is controlled by adjusting the size of the hot melt glue machine positioner, and the adjustment range is 0.5~9.5V; S3, primary twisting: the twisting units pass through the magnetic bead holes and are evenly distributed around the central hole, and the twisting units are output through the twisting unit pay-off frame. The hot melt adhesive twists and bonds the twisting units to the surface of the central reinforcement. The twisting machine rotates left and right; S4, secondary twisting: the central reinforcement member with twisted units in step S3 is subjected to a heating device to bond the twisted units again to form a cable core, wherein the outer diameter of the cable core is 4.0-12.0 mm, and the number of cores of the cable core is 2-576; S5, cable output: Start the take-up traction machine, compact the cable core after secondary twisting through the pressure guide wheel group and then transfer it to the take-up rack.

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