CN108074682B - Twisted pair cable manufacturing equipment - Google Patents
Twisted pair cable manufacturing equipment Download PDFInfo
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- CN108074682B CN108074682B CN201611027351.7A CN201611027351A CN108074682B CN 108074682 B CN108074682 B CN 108074682B CN 201611027351 A CN201611027351 A CN 201611027351A CN 108074682 B CN108074682 B CN 108074682B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/02—Stranding-up
- H01B13/0207—Details; Auxiliary devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/02—Stranding-up
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/02—Stranding-up
- H01B13/0285—Pretreatment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
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- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a manufacturing device of a twisted pair cable, which comprises a paying-off system (20) used for conveying two bare leads; the extruding machine (10) is used for extruding each exposed conductor conveyed by the pay-off system (20) to enable the exposed conductor to be respectively provided with a sheath, and the sheaths are connected to form a connected sheath, so that the conductor becomes a cable with the connected sheath; the invention can effectively prevent the phenomena of change of the twist distance, local looseness and dislocation of two lines in the using process of the twisted pair cable, can completely offset electromagnetic interference and improve the signal transmission quality.
Description
Technical Field
The invention relates to the wire and cable technology, in particular to a manufacturing device of a twisted pair cable.
Background
Twisted pair cables are widely used as power, particularly signal transmission elements in various electrical devices. In modern communication, sensing and control technologies, electromagnetic interference is ubiquitous in air and lines, and the interference seriously affects the quality of signal transmission, especially in microelectronic line transmission and long-distance transmission, and the electromagnetic interference causes signal distortion. The signal transmission line must have the necessary capability of shielding electromagnetic interference, and the prior art generally adopts twisted pair cable to overcome the above problem, i.e. twisting two insulated wires into a spiral shape to combine them together, so that the interference generated by the electromagnetic signals coming and going on the two wires is equal in magnitude and opposite in phase, further making the interference signals cancel each other.
However, in specific use, the twisted pair used for signal transmission is difficult to bend and twist, so the lay length of the twisted pair is difficult to change, and the two insulated wires are also difficult to loose and dislocate locally, so that external interference signals cannot be offset, and the signal transmission quality of the twisted pair cable cannot be guaranteed.
Therefore, there is a need for a new apparatus for manufacturing a twisted pair cable, which can ensure that the lay length of the twisted pair cable is not changed during the use process, and the two wires of the twisted pair cable are not loosened and dislocated locally, so as to improve the quality of signal transmission.
Disclosure of Invention
In view of the above problems in the prior art, the present invention provides a manufacturing apparatus for a twisted pair cable, in which an extruder is used to extrude two bare wires, so that the wires have sheaths, the sheaths are connected to form a connected sheath, the wires become inseparable cables, and the cables are further twisted according to a predetermined twisting pitch to form the twisted pair cable, thereby ensuring that the twisting pitch of the twisted pair cable does not change during the use process, and the two wires of the twisted pair cable do not have local looseness and dislocation, thereby improving the quality of signal transmission.
The technical scheme provided by the invention for the technical problem is as follows:
there is provided a twisted pair cable manufacturing apparatus including;
the paying-off system is used for conveying two bare wires;
the plastic extruding machine is used for extruding each exposed lead conveyed by the pay-off system to enable the exposed lead to be respectively provided with a sheath, and the sheaths are connected to form a connected sheath, so that the lead becomes a cable with the connected sheath;
and the wire take-up system is used for twisting the cable according to a preset twisting distance to form a twisted pair cable and rolling the twisted pair cable.
Preferably, the pay-off system comprises:
a pay-off device, the pay-off device comprising:
a guide roller for winding two of the bare wires;
a damper disposed on the wire guide roller for providing a predetermined damping,
so that the wire wound on the wire guide roller is uniformly paid out;
the wire twisting mechanism is arranged on one side of the wire guide roller, comprises a speed reducing motor and a speed reducing gear and is used for driving the wire guide roller to rotate around the vertical central axis X of the wire guide roller at a constant speed;
and a tension wheel, which is arranged on the path of the conducting wire conveyed to the extruder and is used for guiding the conducting wire to the extruder.
Preferably, the damper includes:
a compression spring disposed on an upper surface of the wire guide roller;
and a knob screw for compressing the compression spring and causing the compression spring to abut against the upper surface of the guide roller.
Preferably, the extruder comprises:
two extrusion molding assemblies arranged in parallel for providing sheath plastic pellets of different colors; each extrusion molding assembly comprises a conveying pipe, a conveying motor connected with the top end of the conveying pipe, a hopper communicated with the side part of the conveying pipe and used for storing sheath plastic granules with different colors, and an injection nozzle communicated with the bottom end of the conveying pipe;
and the extrusion molding die is connected with the injection nozzle of the extrusion molding assembly and used for receiving the sheath plastic granules with different colors, accommodating each exposed lead and carrying out extrusion molding on each exposed lead so that the exposed leads are respectively provided with a sheath, and the sheaths are connected to form a connected sheath, so that the leads become a cable with the connected sheath and the cable passes through the connected sheath and enters the take-up system.
Preferably, the extrusion die comprises:
each feed inlet is correspondingly connected with an injection nozzle of the extrusion molding assembly, and sheath plastic granules with different colors respectively enter the feed inlets through the corresponding injection nozzles;
the two cavities are correspondingly communicated with the two feed inlets through feed channels respectively; the two cavities are communicated with each other through a channel;
a wire inlet and a cable outlet;
each cavity comprises the same spiral cylindrical surface, and the two spiral cylindrical surfaces are symmetrically arranged along a central axis X' and are communicated with each other through the channel; the helical cylindrical surface has an open end and a closed end; the open end is communicated with the lead inlet; a cylindrical through hole with the central axis parallel to the common central line of the spiral cylindrical surface is formed in the center of the closed end and is communicated with the cable outlet; and the generatrix of the spiral cylindrical surface is an equidistant spiral line;
the exposed lead enters the spiral cylindrical surface from the lead inlet and the open end, the sheath plastic granules with different colors enter the spiral cylindrical surface and the channel, the exposed lead becomes the cable with sheaths with different colors after extrusion molding, the sheaths of the cables are connected to form an integral sheath at the channel, and the cable with the integral sheath passes through the cylindrical through hole on the closed end and the cable outlet and enters the take-up system.
Preferably, the wire take-up system comprises:
the traction mechanism is used for forcing the cable formed after extrusion molding to be twisted according to a preset twist pitch and guiding the twisted pair cable formed after twisting to pass through;
and the take-up device is used for rolling the twisted pair cable formed after twisting.
Preferably, the traction mechanism includes:
a traction motor disposed downstream of the extruder;
a traction wheel connected with an output shaft of the traction motor;
the traction motor and the traction wheel are used for continuously pulling the cable out of the extruder at a stable speed;
the guide wheel set comprises at least two pairs of twisted wire guide wheels and at least one pair of traction force application wheels; the at least two pairs of twisted wire guide wheels are used for forcing the cable formed in the extruding machine to pass in a spiral line according to a preset twisting pitch to form the twisted pair cable; the pair of traction stress application wheels are symmetrically arranged on two sides of the traction wheel respectively and used for increasing the wrap angle of the twisted-pair cable in contact with the traction wheel and the friction force between the twisted-pair cable and the traction wheel;
the force adjusting motor is connected with the traction stress application wheel and is used for adjusting the wrap angle of the cable in contact with the traction wheel;
the take-up device comprises:
the wire take-up roller can rotate and can be used for winding the twisted-pair cable; the motor is connected with the wire take-up roller and drives the wire take-up roller to rotate;
the untwisting mechanism is arranged on one side of the wire take-up roller and used for releasing the torsional stress generated in the twisting process of the cable;
the untwisting mechanism comprises:
the speed reducing motor is arranged on one side of the take-up roller; and a reduction gear connected with the reduction motor.
Preferably, the take-up device further comprises:
the wiring mechanism is used for driving the wire collecting roller to move up and down along the vertical central axis Y of the wire collecting roller so as to uniformly and densely wind the twisted-pair cables on the wire collecting roller, and comprises:
the device comprises a forward rotation gear pair and a reverse rotation gear pair, wherein the forward rotation gear pair comprises a forward rotation driving gear and a forward rotation driven gear, and the forward rotation driving gear and the forward rotation driven gear are connected through an idler; the counter gear pair comprises a counter driving gear and a counter driven gear; the forward rotation driving gear and the reverse rotation driving gear are coaxially fixed at the top end and the bottom end of the rotating shaft of the take-up roller;
the reversing lead screw nut pair comprises a lead screw, and the lead of the lead screw is equal to the width of the twisted-pair cable; the top end and the bottom end of the screw rod are respectively connected with the forward driven gear and the reverse driven gear through sliding keys;
the two sets of reversing clutches respectively comprise jaw clutch discs, the jaw clutch discs are respectively sleeved at the top end and the bottom end of the lead screw, driving discs of the jaw clutch discs are respectively fixedly connected with the forward driven gear and the reverse driven gear, and driven discs of the jaw clutch discs are respectively coaxially and fixedly connected with the top end and the bottom end of the lead screw;
when the twisted pair cable is fully wound by one layer around the take-up roller, the lead screw pushes the reversing clutch to change connection, and the take-up roller is driven to move reversely along the vertical central axis Y.
Preferably, the manufacturing apparatus further includes:
a cooling system disposed between the extruder and the take-up system, comprising:
a water tank disposed proximate to the extruder for storing cooling water, the water tank being positioned below the at least two pairs of twisted wire guide wheels;
and the spray header is arranged above the water tank and used for absorbing the cooling water stored in the water tank and spraying the cooling water on the cable which penetrates out of the extruding machine and passes through the at least two pairs of twisted guide wheels so as to rapidly cool and shape the cable.
Preferably, the motor driving the take-up roller to rotate is a torque motor or a servo motor;
when the motor driving the wire take-up roller to rotate is a servo motor, a speed sensor is also arranged between the wire take-up roller and the guide wheel set; and a control system connected to the speed sensor; the control system is used for calculating the conveying speed of the twisted pair cable according to the moving distance of the twisted pair cable in unit time, which is detected by the speed sensor, and adjusting the torque and the rotating speed of the servo motor according to the conveying speed.
The technical effects brought by the technical scheme of the invention are as follows: the twisted-pair cable can effectively prevent the phenomena of twist pitch change, local looseness and dislocation of two lines in the using process of the twisted-pair cable, can completely offset electromagnetic interference and improves the signal transmission quality.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic front view of an apparatus for manufacturing a twisted pair according to an embodiment of the present invention;
FIG. 2 is a top view of an apparatus for manufacturing twisted pairs according to one embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a pay-off system according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of an extruder according to one embodiment of the present invention;
FIG. 5 is a front cross-sectional view of an extrusion die in accordance with one embodiment of the present invention;
FIG. 6 is a side cross-sectional view of an extrusion die in accordance with a first embodiment of the present invention;
FIG. 7 is a first schematic structural diagram of a traction mechanism according to a first embodiment of the present invention;
FIG. 8 is a second schematic structural view of a traction mechanism according to a first embodiment of the present invention;
fig. 9 is a schematic structural view of a wire take-up device (including the torque motor 312) according to a first embodiment of the present invention;
FIG. 10 is a schematic view of a cooling system according to a first embodiment of the present invention;
fig. 11 is a schematic structural diagram of a wire rewinding device (including a servo motor 312a) according to a first embodiment of the present invention.
Detailed Description
The invention provides a manufacturing device of a twisted pair cable, aiming at the defects that the lay length of the twisted pair cable is easy to change, the local parts of two leads are easy to loosen and misplace, so that the electromagnetic interference can not be completely offset, and the signal transmission quality can not be improved in the prior art, the manufacturing device of the twisted pair cable adopts an extruding machine to extrude two exposed leads to ensure that the leads are provided with sheaths and the sheaths are connected into a connected sheath, the leads become inseparable cables, the cables are further twisted according to the preset lay length to form the twisted pair cable, so that the change of the lay length of the twisted pair cable can be ensured, and the local loosening and misplacement of the two leads of the twisted pair cable can not occur, thereby improving the signal transmission quality.
The first embodiment is as follows:
fig. 1-2 provide front and top views of an apparatus for fixing the lay length of a twisted pair cable, comprising:
a pay-off system 20 for conveying two bare conductors C;
the plastic extruding machine 10 is used for extruding each exposed conductor C conveyed by the pay-off system 20 to enable the exposed conductor C to be respectively provided with a sheath, and the sheaths are connected to form a connected sheath, so that the conductor C becomes a cable with the connected sheath;
and a take-up system 30 for twisting the cable according to a predetermined twisting pitch to form a twisted pair cable and taking up the twisted pair cable. Wherein the direction indicated by the arrow is the direction of movement of the conductor C and the cable.
Fig. 3 shows a schematic structural view of the pay-off system 20, and the pay-off system 20 includes: a pay-off device 21, the pay-off device 21 further comprising:
a wire guide roller 211 around which two bare wires C can be wound;
a damper 2111 provided on the wire guide roller 211 for providing a predetermined damping so that the wire wound on the wire guide roller 211 is uniformly paid out; in this embodiment, the damper 2111 includes: a compression spring 214 provided on an upper surface of the wire roller 211;
and a knob screw 215 for compressing the compression spring 214 and bringing the compression spring 214 into contact with the upper surface of the wire guide roller 211;
the wire twisting mechanism 212 is arranged on one side of the wire guide roller 211, comprises a speed reducing motor 2121 and a speed reducing gear 2122, and is used for driving the wire guide roller 211 to rotate around the vertical central axis X of the wire guide roller 211 at a constant speed;
and a tension wheel 213 provided on a path along which the wire C is conveyed to the extruder 10, for guiding the wire C to the extruder 10.
Fig. 4 shows a cross-sectional view of the extruder 10, which comprises: two extrusion modules 11 arranged in parallel for providing sheathed plastic pellets of different colours; each extrusion molding assembly 11 comprises a feed delivery pipe 111, a feed delivery motor 113 connected with the top end of the feed delivery pipe 111, a hopper 114 communicated with the side part of the feed delivery pipe 111 and used for storing sheath plastic granules with different colors, and an injection nozzle 123 communicated with the bottom end of the feed delivery pipe 112; preferably, the material conveying pipes 111 are all provided with spiral packing augers 115, the spiral packing augers 115 are connected with the material conveying motor 113, and the material conveying motor 113 is used for driving the spiral packing augers 115 to convey the sheath plastic granules falling into the material conveying pipes 111 to the injection nozzles 123; further, the material conveying motor 113 may be a servo motor or a stepping motor;
and the extrusion molding die 12 is connected to the injection nozzle 123 of the extrusion molding assembly 11, and is used for receiving the sheath plastic granules with different colors, accommodating each exposed conductor C, and extruding each exposed conductor C to enable each exposed conductor C to be provided with a sheath respectively, and the sheaths are connected to form a connected sheath, so that the conductor C becomes an inseparable cable with the connected sheath, and the cable passes through the inseparable cable and enters the take-up system 30.
Preferably, fig. 5 shows a front cross-sectional view of the extrusion die 12, the extrusion die 12 comprising:
two feed inlets 121, each feed inlet 121 is correspondingly connected with an injection nozzle 123 of the extrusion molding assembly 11, and sheath plastic granules with different colors respectively enter the feed inlets 121 through the corresponding injection nozzles 123;
two cavities 122 which are respectively communicated with the two feed ports (121) through feed channels (126); and the two cavities 122 are communicated with each other through a passage 1223;
FIG. 6 shows a side cross-sectional view of the extrusion die 12, the extrusion die 12 further having a wire inlet 127 and a cable outlet 128;
each of the cavities 122 includes identical helical cylindrical surfaces 1221, two of the helical cylindrical surfaces 1221 being symmetrically arranged along a central axis X' (as shown in fig. 4-5) and communicating with each other through the passage 1223, the helical cylindrical surfaces 1221 having an open end 124 and a closed end 125; the open end 124 communicates with the lead inlet 127; the center of the closed end 125 is provided with a cylindrical through hole 1222, the central axis of which is parallel to the common central line of the spiral cylindrical surfaces 1221 (i.e. the central line where the two spiral cylindrical surfaces 1221 communicate, which is perpendicular to the central axis X'), and the cylindrical through hole 1222 is communicated with the cable outlet 128; and the generatrix of the helical cylinder 1221 is an equidistant helical line;
preferably, the wire inlet 127 and the cable outlet 128 are both truncated cones; the small end of the truncated cone-shaped lead inlet 127 is communicated with the open end 124; the small end of the truncated cone-shaped cable outlet 128 communicates with the cylindrical through hole 1222;
the bare conductor C enters the spiral cylindrical surface 1221 from the conductor inlet 127 and the open end 124, the sheath plastic granules with different colors enter the spiral cylindrical surface 1221 and the passage 1223, the bare conductor C becomes a cable with sheaths with different colors after extrusion molding, the sheaths of each cable are connected to form a connected sheath at the passage 1223, and the cable with the connected sheath passes through the cylindrical through hole 1222 on the closed end 125 and the cable outlet 128 and enters the take-up system 30.
As shown in fig. 1, the wire take-up system 30 includes:
the traction mechanism 32 is used for forcing the cable formed by extrusion molding to be twisted according to a preset twisting pitch and guiding the twisted pair cable formed by twisting to pass;
and a take-up 31 for taking up the twisted pair cable formed after twisting.
Fig. 7-8 show a schematic structural view of the pulling mechanism 32, which includes:
a traction motor 321 disposed downstream of the extruder 10;
a traction wheel 3211 connected to an output shaft of the traction motor 321;
the pulling motor 321 and the pulling wheel 3211 are used to continuously pull the cable from the extruder 10 at a stable speed;
a guide wheel set 322 comprising two pairs of twisted guide wheels 3221 and at least one pair of traction stressing wheels 3222; the two pairs of twisted wire guide wheels 3221 are used for forcing the cable formed in the extruder 10 to pass through in a spiral line according to a predetermined twisting pitch to form the twisted pair cable; the pair of traction stress rollers 3222 are symmetrically disposed on two sides of the traction wheel 3211, and are configured to increase a wrap angle between the twisted pair cable and the traction wheel 3211 and a friction force therebetween;
and a force adjusting motor 3223 connected to the traction force applying wheel 3222 and used for adjusting a wrap angle of the cable contacting with the traction wheel 3211.
Further, fig. 9 shows a schematic structural diagram of the wire rewinding device 31, which includes:
a take-up roller 311 rotatable and around which the twisted pair cable is wound; a motor connected to the take-up roller 311 and driving the take-up roller 311 to rotate; in this embodiment, the motor is a torque motor 312;
the wire-rewinding mechanism 313 is arranged on one side of the wire-rewinding roller 311 and used for releasing torsional stress generated in the twisting process of the cable;
the torsion releasing mechanism 313 includes:
a reduction motor 3131 disposed on one side of the take-up roller 311; and a reduction gear 3132 connected to the reduction motor 3131.
Preferably, the wire take-up device 31 further includes:
the wiring mechanism is configured to drive the take-up roller 311 to move up and down along the vertical central axis Y thereof, so as to uniformly and densely wind the twisted pair cables around the take-up roller 311, and includes:
a forward rotation gear pair 331 and a reverse rotation gear pair 332, wherein the forward rotation gear pair 331 comprises a forward rotation driving gear 365 and a forward rotation driven gear 367, and the forward rotation driving gear 365 and the forward rotation driven gear 367 are connected through an idler gear 3311; the counter gear pair 331 includes a counter drive gear 368 and a counter driven gear 369; the forward driving gear 365 and the reverse driving gear 368 are coaxially fixed at the top end and the bottom end of the rotating shaft of the take-up roller 311;
the reversing lead screw nut pair comprises a lead screw 333, and the lead of the lead screw 333 is equal to the width of the twisted-pair cable; the top end and the bottom end of the lead screw 333 are respectively connected with the forward rotation driven gear 367 and the reverse rotation driven gear 369 through sliding keys;
two sets of reversing clutches 334, each of which includes a dog clutch disc, the dog clutch discs are respectively sleeved on the top end and the bottom end of the screw 333, and driving discs of the dog clutch discs are respectively fixedly connected with the forward rotation driven gear 367 and the reverse rotation driven gear 369, and driven discs of the dog clutch discs are respectively coaxially and fixedly connected with the top end and the bottom end of the screw 333;
when the twisted pair cable is wound around the take-up roller 311 by one layer, the lead screw 333 pushes the reversing clutch 334 to change the connection, so as to drive the take-up roller 311 to move reversely along the vertical central axis Y.
As shown in fig. 1 and 10, the manufacturing apparatus further includes:
a cooling system 33 disposed between the extruder 10 and the take-up system 30, comprising:
a water tank 342 disposed adjacent to the extruder 10, the water tank 342 storing cooling water, and the water tank 342 being located below the two pairs of twisted guide wheels 3221;
a spray header 343 is disposed above the water tank 332 for sucking the cooling water stored in the water tank 342 and spraying the cooling water onto the cable passing through the two pairs of twisted guide wheels 3221 from the extruder 10 to rapidly cool and set the cable.
Example two:
as shown in fig. 11, the present embodiment is different from the first embodiment only in that the motor for driving the take-up roller 311 to rotate can serve as a motor 312 a.
When the motor driving the wire take-up roller 311 to rotate is a servo motor 312a, a speed sensor 314 is further arranged between the wire take-up roller 311 and the guide pulley group 322; and a control system connected to the speed sensor 314; the control system is configured to calculate a transmission speed of the twisted pair cable according to a distance of the twisted pair cable moving in a unit time detected by the speed sensor, and adjust a torque and a rotation speed of the servo motor 312a according to the transmission speed, preferably, the speed sensor 314 may be a photo-electric pulse generator.
In summary, in the apparatus and method for fixing a twisted pair cable lay of the present invention, an extruder is used to extrude two exposed wires, so that the wires have sheaths, the sheaths are connected to form an integral sheath, the wires become inseparable cables, and the cables are further twisted according to a predetermined lay to form a twisted pair cable, thereby ensuring that the twisted pair lay is not changed during the use process, and the two wires of the twisted pair are not loosened and dislocated locally, thereby improving the quality of signal transmission.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. An apparatus for manufacturing a twisted pair cable, comprising;
a pay-off system (20) for conveying two bare wires;
the plastic extruding machine (10) is used for extruding each exposed lead conveyed by the pay-off system (20) to enable the exposed lead to be respectively provided with a sheath, and the sheaths are connected to form a connected sheath, so that the lead becomes a cable with the connected sheath;
the take-up system (30) is used for twisting the cable according to a preset twisting pitch to form a twisted pair cable and rolling the twisted pair cable;
the traction mechanism (32) is used for forcing the cable formed after extrusion molding to be twisted according to a preset twisting pitch and guiding the twisted pair cable formed after twisting to pass;
and a take-up (31) for taking up the twisted pair cable formed after twisting;
wherein, take-up (31) still includes the wiring mechanism, is used for driving take-up roller (311) of take-up (31) and moves up and down along its vertical central axis Y, will twisted pair cable be evenly densely-wound on take-up roller (311), and it includes:
the gear pair comprises a forward rotation gear pair (331) and a reverse rotation gear pair (332), wherein the forward rotation gear pair (331) comprises a forward rotation driving gear (365) and a forward rotation driven gear (367), and the forward rotation driving gear (365) and the forward rotation driven gear (367) are connected through an idler gear (3311); the counter gear pair (332) includes a counter drive gear (368) and a counter driven gear (369); the forward rotation driving gear (365) and the reverse rotation driving gear (368) are coaxially fixed at the top end and the bottom end of the rotating shaft of the wire take-up roller (311);
the reversing lead screw nut pair comprises a lead screw (333), and the lead of the lead screw (333) is equal to the width of the twisted pair cable; the top end and the bottom end of the lead screw (333) are respectively connected with the positive rotation driven gear (367) and the reverse rotation driven gear (369) through sliding keys;
the two sets of reversing clutches (334) comprise jaw clutch discs, the jaw clutch discs are respectively sleeved at the top end and the bottom end of the lead screw (333), a driving disc of each jaw clutch disc is respectively and fixedly connected with the forward rotation driven gear (367) and the reverse rotation driven gear (369), and a driven disc of each jaw clutch disc is respectively and coaxially and fixedly connected with the top end and the bottom end of the lead screw (333);
when the twisted pair cable is fully wound around the take-up roller (311) by one layer, the lead screw (333) pushes the reversing clutch (334) to change the connection, and the take-up roller (311) is driven to move reversely along the vertical central axis Y.
2. The apparatus of claim 1, wherein the payoff system (20) comprises:
-a pay-off device (21), the pay-off device (21) comprising:
a guide roller (211) around which two of the bare wires can be wound;
a damper (2111) provided on the wire guide roller (211) for providing a predetermined damping,
so that the wire wound on the wire guide roller (211) is uniformly paid out;
the wire twisting mechanism (212) is arranged on one side of the wire guide roller (211), comprises a speed reducing motor (2121) and a speed reducing gear (2122) and is used for driving the wire guide roller (211) to rotate around the vertical central axis X of the wire guide roller (211) at a constant speed;
and a tension wheel (213) arranged on the path of the wire conveyed to the extruder (10) for guiding the wire to the extruder (10).
3. The apparatus according to claim 2, wherein the damper (2111) comprises:
a compression spring (214) disposed on an upper surface of the wire guide roller (211);
and a knob screw (215) for compressing the compression spring (214) and causing the compression spring (214) to abut against the upper surface of the wire guide roller (211).
4. The apparatus of claim 1, wherein said extruder (10) comprises:
two extrusion units (11) arranged in parallel for providing sheathed plastic pellets of different colours; each extrusion molding component (11) comprises a material conveying pipe (111); a feeding motor (113) connected with the top end of the feeding pipe (111); a hopper (114) communicated with the side part of the conveying pipe (111) and used for storing sheath plastic granules with different colors; and an injection nozzle (123) communicated with the bottom end of the material conveying pipe (112);
and the extrusion molding die (12) is connected to an injection nozzle (123) of the extrusion molding assembly (11) and is used for receiving the sheath plastic granules with different colors, accommodating each exposed lead and carrying out extrusion molding on each exposed lead to ensure that each exposed lead is provided with a sheath respectively, and the sheaths are connected to form a connected sheath, so that the leads become a cable with the connected sheath and the cable passes through and enters the take-up system (30).
5. The apparatus according to claim 4, wherein the extrusion die (12) comprises:
two feed inlets (121), wherein each feed inlet (121) is correspondingly connected with an injection nozzle (123) of the extrusion molding assembly (11), and the sheath plastic granules with different colors respectively enter the feed inlets (121) through the corresponding injection nozzles (123);
two cavities (122) which are respectively communicated with the two feed ports (121) through feed channels (126); the two cavities (122) are communicated with each other through a channel (1223);
a wire inlet (127) and a cable outlet (128);
each of said cavities (122) comprises identical helical cylindrical surfaces (1221), two of said helical cylindrical surfaces (1221) being arranged symmetrically along a central axis X' and communicating with each other through said passage (1223), said helical cylindrical surfaces (1221) having an open end (124) and a closed end (125); the open end (124) is in communication with the wire inlet (127); the center of the closed end (125) is provided with a cylindrical through hole (1222) the central axis of which is parallel to the common central axis of the spiral cylindrical surface (1221), and the cylindrical through hole (1222) is communicated with the cable outlet (128); and the generatrix of the spiral cylindrical surface (1221) is an equidistant spiral line;
the exposed lead enters the spiral cylindrical surface (1221) from the lead inlet (127) and the open end (124), the sheath plastic granules with different colors enter the spiral cylindrical surface (1221) and the channel (1223), the exposed lead is extruded to form cables with sheaths with different colors, the sheaths of each cable are connected to form a connected sheath at the channel (1223), and the cable with the connected sheath passes through the cylindrical through hole (1222) on the closed end (125) and the cable outlet (128) and enters the wire take-up system (30).
6. The apparatus according to claim 1, wherein the traction mechanism (32) comprises:
a traction motor (321) disposed downstream of the extruder (10);
a traction wheel (3211) connected to an output shaft of the traction motor (321);
the traction motor (321) and the traction wheel (3211) are used for continuously drawing the cable out of the extruder (10) at a stable speed;
a guide wheel group (322) comprising at least two pairs of twisted guide wheels (3221) and at least one pair of traction stressing wheels (3222); said at least two pairs of twisted wire guide rollers (3221) are used for forcing said cable formed in said extruder (10) to pass in a spiral line according to a predetermined lay length to form said twisted pair cable; the at least one pair of traction stress rollers (3222) are symmetrically arranged on two sides of the traction roller (3211) in a splitting manner and used for increasing the wrap angle of the twisted pair cable in contact with the traction roller (3211) and the friction force between the twisted pair cable and the traction roller;
the force adjusting motor (3223) is connected with the traction stress roller (3222) and is used for adjusting the wrap angle of the cable in contact with the traction roller (3211);
the take-up device (31) comprises:
a take-up roller (311) which is rotatable and around which the twisted pair cable is wound; the motor is connected with the wire take-up roller (311) and drives the wire take-up roller (311) to rotate;
the untwisting mechanism (313) is arranged on one side of the wire take-up roller (311) and is used for releasing torsional stress generated in the twisting process of the cable;
the torque release mechanism (313) includes:
a speed reduction motor (3131) arranged on one side of the wire take-up roller (311); and a reduction gear (3132) connected to the reduction motor (3131).
7. The apparatus of claim 6, wherein the manufacturing apparatus further comprises:
a cooling system (33) disposed between the extruder (10) and the take-up system (30), comprising:
a water tank (342) disposed proximate to the extruder (10), the water tank (342) for storing cooling water, and the water tank (342) being located below the at least two pairs of twisted wire guide wheels (3221);
and the spray head (343) is arranged above the water tank (342) and is used for sucking cooling water stored in the water tank (342) and spraying the cooling water on the cable which passes through the extruder (10) and passes through the at least two pairs of twisted guide wheels (3221) so as to rapidly cool and shape the cable.
8. The apparatus according to claim 6, characterized in that the motor driving the take-up roller (311) to rotate is a torque motor (312) or a servo motor (312 a);
when the motor driving the wire take-up roller (311) to rotate is a servo motor (312a), a speed sensor (314) is also arranged between the wire take-up roller (311) and the guide wheel set (322); and a control system connected to the speed sensor (314); the control system is used for calculating the conveying speed of the twisted pair cable according to the moving distance of the twisted pair cable in unit time, which is detected by the speed sensor, and adjusting the torque and the rotating speed of the servo motor (312a) according to the conveying speed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611027351.7A CN108074682B (en) | 2016-11-16 | 2016-11-16 | Twisted pair cable manufacturing equipment |
| PCT/CN2017/111378 WO2018090955A1 (en) | 2016-11-16 | 2017-11-16 | Device for manufacturing twisted-pair cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611027351.7A CN108074682B (en) | 2016-11-16 | 2016-11-16 | Twisted pair cable manufacturing equipment |
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| Publication Number | Publication Date |
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| CN108074682A CN108074682A (en) | 2018-05-25 |
| CN108074682B true CN108074682B (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611027351.7A Active CN108074682B (en) | 2016-11-16 | 2016-11-16 | Twisted pair cable manufacturing equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108074682B (en) |
| WO (1) | WO2018090955A1 (en) |
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| CN108962507A (en) * | 2018-07-11 | 2018-12-07 | 铜陵市铜都特种线缆有限公司 | A kind of communication cable stranding device convenient to use |
| CN109285641A (en) * | 2018-09-20 | 2019-01-29 | 北京机械设备研究所 | A kind of auxiliary mould based on the production of live twisted pair |
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| CN115233124B (en) * | 2022-06-20 | 2023-05-05 | 铜陵铜泉线缆科技有限公司 | Copper stranded wire heat treatment device and process for cable |
| CN116024832B (en) * | 2023-02-07 | 2023-12-22 | 浙江东翼新材料有限公司 | Wire twisting device for copper-clad steel strand |
| CN117637253B (en) * | 2024-01-04 | 2024-05-10 | 穿越电缆集团有限公司 | Stranded wire device for cable production |
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| CN108074682A (en) | 2018-05-25 |
| WO2018090955A1 (en) | 2018-05-24 |
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Effective date of registration: 20210914 Address after: 241000 Fanchang County Economic Development Zone, Wuhu City, Anhui Province Applicant after: ANHUI LIANJIAXIANG SPECIAL CABLE Co.,Ltd. Address before: 518000 floor 12, building C, Shenzhen International Innovation Center, No. 1006, Shennan Avenue, Huafu street, Futian District, Shenzhen, Guangdong Province Applicant before: SHENZHEN LIANJIAXIANG SCIENCE & TECHNOLOGY Co.,Ltd. |
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