CN109686484A

CN109686484A - A kind of coaxial cable and its production equipment and method

Info

Publication number: CN109686484A
Application number: CN201910128069.5A
Authority: CN
Inventors: 宋志涛; 王柏然; 邓舜禹
Original assignee: Shanghai Li Kun Photoelectric Technology Co Ltd
Current assignee: Shanghai Li Kun Photoelectric Technology Co Ltd
Priority date: 2019-02-21
Filing date: 2019-02-21
Publication date: 2019-04-26
Anticipated expiration: 2039-02-21
Also published as: CN109686484B

Abstract

This application provides a kind of coaxial cable and its production equipments and method, coaxial cable is successively arranged inner conductor, insulating layer, internal shield, external shielding layer and sheath from inside to outside, and production equipment includes insulating layer coating equipment, internal shield coating equipment and the external shielding layer coating equipment along the sequence setting of production line direction.Wherein, insulating layer coating equipment includes one or more sequentially connected first winding machines and the first straining pulley group positioned at the downstream of the first winding machine；Internal shield coating equipment includes the second winding machine and the second straining pulley group positioned at the downstream of the second winding machine；External shielding layer coating equipment be included shielded layer outer surface cladding external shielding layer cable braiding machine and take-up mechanism positioned at the downstream of cable braiding machine.The application designs reasonable, favorable working performance, can be carried out with whole-course automation, dramatically reduce manual working, improve production efficiency.

Description

A kind of coaxial cable and its production equipment and method

Technical field

The present invention relates to coaxial cable production and processing field more particularly to a kind of coaxial cable and its production equipment and sides Method.

Background technique

Coaxial cable refers to by two concentric conductors, and conductor and shielded layer share the cable in same axle center.Low-loss Coaxial cable has that frequency of use is high, decaying is low, loss is low, consistency is good and the excellent properties such as advantages of good shielding performance, simultaneously also Has good bending property.Therefore it has been obtained increasingly in the Transmission system in movement, microwave communication etc. using radiofrequency signal It is widely applied.

In the prior art, coaxial cable production equipment exist structure is complicated, processing and manufacturing difficulty it is big, it is inconvenient for operation, The problems such as production efficiency is low, often going wrong in process of production cannot find to will result in serious loss in time.In order to Improve the above problem, need a kind of design rationally, favorable working performance, coaxial cable production equipment easy to manufacture meet The demand of people.

Summary of the invention

The purpose of the present invention is to provide a kind of coaxial cable and its production equipments and method, to solve above-mentioned technical background The problem of middle proposition.

To achieve the above object, the invention adopts the following technical scheme:

First aspect of the present invention provides a kind of coaxial cable, is successively arranged inner conductor, insulating layer, interior screen from inside to outside Cover layer, external shielding layer and sheath.

Preferably, the inner conductor is one of copper wire, copper-clad aluminum conductor and silver-coated copper wire.

Preferably, the insulating layer is polyethylene foamed insulating layer or low-density polytetrafluoroethylene film wrapping layer.

Preferably, the internal shield, be plastic-aluminum combined film longitudinal wrap layer, silver-plated copper strips lapping layer, copper foil longitudinal wrap layer and One of silver-plated flat wire braiding layer.

Preferably, the external shielding layer is tinned wird braiding layer, silver-coated copper wire braiding layer, tinned wird braiding wicking One of layer and silver-plated flat wire braiding layer.

Preferably, the sheath, using polyethylene, polyvinyl chloride, fluorinated ethylene propylene copolymer or polyurethane material system At.

Preferably, the inner conductor of the coaxial cable is copper wire or copper-clad aluminum conductor, and the insulating layer is polyethylene foamed layer, The internal shield is plastic-aluminum combined film longitudinal wrap layer, and the external shielding layer is tinned wird braiding layer, and the sheath is using poly- Ethylene or pvc material are made.

Preferably, the inner conductor of the coaxial cable is silver-coated copper wire, and the insulating layer is that low-density polytetrafluoroethylene (PTFE) is thin Film wrapping layer, the internal shield are silver-plated copper strips lapping layer, and the external shielding layer is silver-coated copper wire braiding layer, and the sheath is adopted It is made of fluorinated ethylene propylene copolymer material.

Preferably, the inner conductor of the coaxial cable is silver-coated copper wire or copper-clad aluminum conductor, and the insulating layer is the poly- second that foams Alkene layer or low-density polytetrafluoroethylene film wrapping layer, the internal shield are copper foil longitudinal wrap layer, and the external shielding layer is plating Tin copper wire woven wicking layer, the sheath are made of polyvinyl chloride or fluorinated ethylene propylene copolymer material.

Preferably, the inner conductor of the coaxial cable is silver-plated copper stranded wire or single line, and the insulating layer is low-density poly- four Fluoroethylene film wrapping layer, the internal shield are silver-plated flat wire braiding layer, and the external shielding layer is silver-plated flat wire braiding layer, institute Sheath is stated to be made of polyurethane material.

Preferably, one end of the coaxial cable is connected with coaxial electric coupler, and the coaxial electric coupler includes:

Shell, the shell include first end and second end, and the connection shell first end and second end the One inner hole；

Tail sleeve, the tail sleeve include the second of the first end and second end of first end and second end and the connection tail sleeve Inner hole, the first end of the tail sleeve are fixedly connected with the second end of the shell；

Insulating sleeve, the insulating sleeve are positioned at the first end of the shell, and the center of the insulating sleeve, which is equipped with, wears Hole；

Contact pin, one end of the contact pin are described to insert at the perforation to the first end of the shell of the insulating sleeve The other end of needle is equipped with locating slot；The inner conductor of the coaxial cable passes through the second end of the tail sleeve, protrudes into the locating slot, And it is welded in the contact pin.

It is highly preferred that the shell of the coaxial electric coupler is detachable with the insulating sleeve, the tail sleeve Structure is formed after crimping and is integrally formed.

It is highly preferred that the shell of the coaxial electric coupler is straight-tube shape.

Further, first inner hole is straight hole.

It is highly preferred that the shell of the coaxial electric coupler include the lateral shell that is arranged in a mutually vertical manner of central axes and Longitudinal shell, the transverse direction shell and longitudinal shell cast are integrated.

Further, first inner hole is L shape hole.

It is highly preferred that second inner hole is smooth straight hole.

It is highly preferred that the outside of the first end of the tail sleeve of the coaxial electric coupler is equipped with external screw thread, the shell The inside of second end be equipped with the internal screw thread that cooperates with the external screw thread.

It is highly preferred that the length of the contact pin of the coaxial electric coupler is longer than the length of the insulating sleeve, it is described Contact pin stretches out the both ends of the insulating sleeve.

It is highly preferred that the second end of the shell of the coaxial electric coupler and the coaxial electrical of part adjacent thereto The outer surface of the sheath of cable is arranged with heat-shrinkable T bush.

It is highly preferred that the outer surface of the other end of the contact pin of the coaxial electric coupler, which is equipped with, is connected to the positioning The through-hole of slot, scolding tin pour into the locating slot from the through-hole, and the inner conductor of the coaxial cable is welded in the locating slot.

It is highly preferred that the inner wall of the tail sleeve of the coaxial electric coupler is equipped with a bushing, the bushing has opposite Front-end and back-end, and the hole for extending there through the coaxial cable.

Further, the internal diameter in the hole is in the outer diameter and the external shielding layer of the internal shield of the coaxial cable Range between outer diameter.

Further, the bushing is made of insulating materials.

Further, the coaxial electric coupler further includes a circular insulating trip, and the centre bit of the insulating trip installs There is through-hole, the insulating trip is set in the other end of the contact pin, and one side presses on the bushing.

Further, the inner conductor of the coaxial cable passes through the through-hole of the insulating trip, and the internal diameter of the through-hole is small In the outer diameter of the internal shield.

Further, the circumferencial direction of the insulating trip is additionally provided with the circular hole being evenly distributed.

Further, a gasket is also arranged between the side of the insulating trip and the bushing, the gasket is annulus Shape.

The second aspect of the present invention provides a kind of production equipment of coaxial cable, including is arranged along production line direction sequence Insulating layer coating equipment, internal shield coating equipment and external shielding layer coating equipment；Wherein,

The insulating layer coating equipment includes one or more sequentially connected for exhausted in the outer surface of inner conductor cladding First of first winding machine of edge layer and the inner tensions for adjusting cable positioned at the downstream of first winding machine Wheels group；

The internal shield coating equipment include for the outer surface of insulating layer cladding internal shield the second winding machine, And the second straining pulley group of the inner tensions for adjusting cable positioned at the downstream of second winding machine；

The external shielding layer coating equipment be included shielded layer outer surface cladding external shielding layer cable braiding machine, with And positioned at the downstream of the cable braiding machine for the cable after cladding external shielding layer to be wound the admission machine to reel Structure.

Preferably, first winding machine includes:

Hollow carriage body and wrapping mechanism, the side wall of the hollow carriage body is equipped with the first perforation and the second perforation, wherein second Face first of perforating is perforated；

The wrapping mechanism is set to the inside of the hollow carriage body, including a guide pipe, the guide pipe are connected to Around first perforation；

The center of the guide pipe is arranged one along axial central cavity；

The central cavity is connected to first perforation, with the second perforation face；

The wrapping mechanism further includes a change perpendicular to the guide pipe, and the center point of the change is equipped with center Cylinder；

The central tube passes through a swivel bearing with the free end of the guide pipe, can connect with the relative rotation；

The central tube is connect by least one connecting rod with the ring body of the change；

For placing the wrapped tep reel of the twining package tape, being sheathed on the outside of the guide pipe along axial direction.

It is highly preferred that the connecting rod is at least two, around the radial arrangement of the central tube.

Further, the connecting rod is two, mutually synthesizes a diameter.

Preferably, the first straining pulley group includes: the vertical bar and one that connection can be relatively rotated by a shaft Root cross bar；A first pulley is rotatably arranged on the vertical bar；The cross bar is divided into two portions using the shaft as boundary Point, first part and second part；Counterweight is arranged in the outer end of first part；One second pulley is rotationally arranged at second Point.

It is highly preferred that being equipped at least two circle races on the outer peripheral edge of the first pulley and the second pulley.

Preferably, the structure of second winding machine and the structure of first winding machine are same or different.

Preferably, the second straining pulley group includes: that a stress frame is stood on a horizontal support, the stress A litter is respectively arranged in the two sides of frame；One third pulley is fixed on the lower part of the stress frame, and the 4th pulley is set to The top of the stress frame the same face, the 4th pulley are slided up and down along litter.

It is highly preferred that being equipped at least two circle races on the outer peripheral edge of the third pulley and the 4th pulley.

It is highly preferred that the two sides of the stress frame are also respectively provided with a directive wheel.

Preferably, between first winding machine and the first straining pulley group and/or the first straining pulley group and institute It states between the second winding machine and/or between second winding machine and the second straining pulley group, is additionally provided with guide wheel group, institute Stating guide wheel group includes at least two horizontally arranged directive wheels.

Preferably, the cable braiding machine includes:

Rack, the rack are equipped with work top；The work top is equipped at least one braid assembly, wherein

The braid assembly includes: around rotatable first turntable of first rotating shaft；The lower section of first turntable, which is equipped with, drives Move the motor of the first turntable rotation；First turntable is equipped with second turn of the surface for being pierced by first turntable upwards Disk, the second shaft passes through the center of second turntable, and second turntable can be rotated around second shaft；Described Weaving unit is fixedly connected with above two turntables；

The weaving unit includes: pedestal, and the pedestal is equipped with two blocks of side plates；Line is carried through one between the side plate Axis, the spool for being wound with litzendraht wire are rotationally set on the load spool；Described one end for carrying spool passes through one piece of side Plate is connected with runner, and the surrounding periphery of the runner is radial to be equipped with tooth；Opening, at least one are equipped on two blocks of side plates Connecting shaft is set between the opening, and the connecting shaft is equipped with the first directive wheel, and first directive wheel can be around the connecting shaft Rotation；The both ends of the connecting shaft stretch out the opening and are separately connected a sliding block, are equipped with vertical direction on the sliding block Guide post, one end of the guide post be fixedly connected with the base, the other end of the guide post passes through the first fixed block It is fixedly connected with the outer wall of the side plate；The second fixed block is additionally provided on the outer wall of side plate equipped with runner, brake bar runs through Second fixed block, and can be slided up and down along second fixed block, the brake bar is located at the top of the sliding block；It is described The first end of the top connection driving lever of brake bar, the second end of the driving lever are located at the lower section of the runner, first fixation The top of block；Region of the driving lever between its first end and second end can be rotated by the outer wall of shaft and the side plate Connection；

First turntable and the work top are rotatablely connected by first rotating shaft；

The center of the work top is equipped with cable punching hole, and first turntable does not cover the cable punching hole.

It is highly preferred that the top of the work top is equipped at least one directive wheel, the directive wheel passes through shaft and institute State gantry rotation connection.

It is highly preferred that the lower section of the work top is equipped at least one directive wheel, the directive wheel passes through shaft and institute State gantry rotation connection.

It is highly preferred that the wire-passing tube of the work top is provided perpendicular at the cable punching hole, the wire-passing tube Upper and lower side is respectively formed cable and portals and cable inlet hole.

It is highly preferred that the surface of the wire-passing tube is equipped with the position-limiting drum for being fixedly connected on the rack.

Preferably, the take-up mechanism includes:

A bracket is arranged on the pedestal in horizontal pedestal, directive wheel and mounting base, and the bracket includes two collateral Frame；A horizontal rotary shaft is connected between the side stand, the rotary shaft can be around axial-rotation；

The lead screw of a horizontal direction is also connected between the side stand, the lead screw is parallel to the rotary shaft；It is described Lead screw can be around being axially rotationally installed on the bracket；

The directive wheel is rotationally arranged at the top layer of the mounting base, and the mounting base further includes the spiral shell of a perforation Hole, the internal screw thread of the screw hole are engaged with the external screw thread of the lead screw；The central axis of the directive wheel is parallel with the rotary shaft.

Third aspect of the present invention provides a kind of production method of coaxial cable, comprising:

A. in one or more layers wrapped insulating layer of the outer surface of inner conductor；

B. in the wrapped one layer of internal shield made of metal in the outer surface of insulating layer；

C. internal shield outer surface coat one layer by metal wire knitted at external shielding layer；

D. one layer of sheath being made of insulating material is coated in the outer surface of external shielding layer.

Compared with prior art, technical solution of the present invention has the advantages that

The present invention provides a kind of coaxial cable and its production equipment and method, design rationally, favorable working performance, can be whole Automation carries out, and dramatically reduces manual working, improves production efficiency.

Detailed description of the invention

Attached drawing is constituted part of this application to be used to provide further understanding of the present application, the schematic implementation of the application Example and its explanation are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:

Fig. 1 is a kind of structural schematic diagram of coaxial cable；

Fig. 2 is a kind of each design of part schematic diagram of coaxial electric coupler；

Fig. 3 is each design of part schematic diagram of another coaxial electric coupler；

Fig. 4 is a kind of structural schematic diagram of the production equipment of coaxial cable；

Fig. 5 is the structure sectional view of wrapping mechanism in the first winding machine/second winding machine of preferred embodiment；

Fig. 6 is the structural schematic diagram of wrapping mechanism in the first winding machine/second winding machine of preferred embodiment；

Fig. 7 is the structural schematic diagram of the first straining pulley group of preferred embodiment；

Fig. 8 is the structure front view of the second straining pulley group of preferred embodiment；

Fig. 9 is the structural side view of the second straining pulley group of preferred embodiment；

Figure 10 is the structural schematic diagram of the guide wheel group of preferred embodiment；

Figure 11 is a kind of general structure schematic diagram of cable braiding machine of preferred embodiment；

Figure 12 is a kind of structural schematic diagram of the work top of cable braiding machine of preferred embodiment (without spindle)；

Figure 13 is the structural schematic diagram of the spindle of preferred embodiment；

Figure 14 is the structural schematic diagram of the take-up mechanism of the cable braiding machine of preferred embodiment；

Figure 15 is a kind of preferred production method flow chart of coaxial cable.

Marginal data:

1, inner conductor；2, insulating layer；3, internal shield；4, external shielding layer；5, sheath；6, shell；7, tail sleeve；8, insulation sleeve Pipe；9, contact pin；901, locating slot；902, through-hole；10, bushing；11, insulating trip；12, gasket；

100, the first winding machine；110, hollow carriage body；120, the first perforation；130, the second perforation；121, guide pipe；150, Around chartered steamer；160, central tube；165, wrapped tep reel；170, swivel bearing；180, connecting rod；190, pulley；200, the first tension Wheel group；220, cross bar；210, vertical bar；211, first pulley；221, second pulley；222, counterweight；300, guide wheel group；400, Two straining pulley groups；410, support；411, third pulley；415, stress frame；420, the first litter；421, the 4th pulley；425, sliding Motion block；430, the second litter；432, clump weight；433, balancing disk；440, connection chain；600, cable braiding machine；601, pedestal； 602, side plate；603, spool is carried；604, runner；605, connecting shaft；606, third directive wheel；607, sliding block；608, guide post； 609, the first fixed block；610, tensioning spring；611, the second fixed block；612, brake bar；613, driving lever；614, shaft；615, Axle sleeve；616, reset spring；618, top plate；619, universal bearing；620, guide rod；621, actinobacillus wheel；622, the 4th directive wheel； 630, the first turntable；631, the second turntable；632, first rotating shaft；633, the second shaft；634, fixed screw；640, rack； 641, work top；642, cable punching hole；643, the second directive wheel；644, the first directive wheel；645, wire-passing tube；646, it limits Cylinder；700, take-up mechanism；701, pedestal；702, bracket；720, side stand；710, mounting base；730, take-up pulley；731, it rotates Axis；740, lead screw；750, the first rotary drive motor；751, the second rotary drive motor；760, the 5th directive wheel.

Specific embodiment

The present invention provides a kind of coaxial cable and its production equipment and method, for make the purpose of the present invention, technical solution and Effect is clearer, clear, referring to the drawings and gives an actual example that the present invention is described in more detail.It should be appreciated that this place Specific examples are only used to explain the present invention for description, is not intended to limit the present invention.

It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, " Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order, it should be appreciated that is used in this way Data be interchangeable under appropriate circumstances.In addition, term " includes " and " having " and their any deformation, it is intended that Cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units need not limit In step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, produce The other step or units of product or equipment inherently.

Embodiment one:

As shown in Figure 1, a kind of coaxial cable, is successively arranged inner conductor 1, insulating layer 2, internal shield 3, external screen from inside to outside Cover layer 4 and sheath 5；The insulating layer 2 is closely coated outside the inner conductor 1, and the internal shield 3 is set outside the insulating layer 2, The external shielding layer 4 is set outside the internal shield 3, the outer surface of the external shielding layer 4 extrudes the sheath 5.

Specifically:

The resistance loss of inner conductor 1 is the main source of coaxial cable decaying, described in order to reduce the decaying of coaxial cable Inner conductor 1 can be one of copper wire, copper-clad aluminum conductor and silver-coated copper wire.For example, inner conductor 1 is to meet JB/T 3135-2011 to work as In silver-coated copper wire.Inner conductor 1 use cylindrical structure, main requirements is that resistance is small under high frequency, have enough flexibilities with Mechanical strength and higher dimensional accuracy.Twisted silver-coated copper wire is conducive to the improvement of coaxial cable flexibility.

Insulating layer 2 is the chief component of coaxial cable, to reducing the decaying of cable, improving power capacity, increases machine Tool stability etc., has a great impact.The insulating layer 2 can be polyethylene foamed insulating layer or low-density polytetrafluoroethyl-ne Alkene Transposed wind layer.For example, insulating layer is low-density polytetrafluoroethylene film wrapping layer, it is also known as " varicosity band " or elastic Band has low-k and density, the outer diameter of coaxial cable can be made to reduce, weight saving.

Internal shield 3 plays dual parts of circuit and shielding.The internal shield 3, can be vertical for plastic-aluminum combined film One of covering, silver-plated copper strips lapping layer, copper foil longitudinal wrap layer and silver-plated flat wire braiding layer.

The external shielding layer 4 is tinned wird braiding layer, silver-coated copper wire braiding layer, tinned wird braiding wicking layer and plating One of silver-colored flat wire braiding layer.

The effect of sheath 5 is the internal component for protecting coaxial cable, so that it is not mechanically damaged and is rubbed, moisture, corruption The influence of the factors such as erosion, high and low temperature environment.The sheath 5, can be using polyethylene, polyvinyl chloride, perfluoroethylenepropylene copolymerization Object or polyurethane material are made.

Several examples are enumerated below to illustrate.

(1) coaxial cable is a kind of polyethylene foamed loss coaxial cables.

The inner conductor 1 of the coaxial cable is copper wire or copper-clad aluminum conductor, and the insulating layer 2 is polyethylene foamed layer, described interior Shielded layer 3 is plastic-aluminum combined film longitudinal wrap layer, and the external shielding layer 4 is tinned wird braiding layer, and the sheath 5 uses polyethylene Or pvc material is made.

Wherein:

A) inner conductor 1 is single line structure.

B) weight of the coaxial cable is 3~20kg/100m, for example, outer diameter is the coaxial cable of 4.95mm, weight For 3kg/100m；Outer diameter is the coaxial cable of 15mm, weight 20kg/100m.

C) impedance of the coaxial cable is 50 ohm.

D) operating temperature of the coaxial cable is -55~85 degrees Celsius.

E) the polyethylene foamed layer is that the physical blowing polyethylene layer being extruded on the inner conductor 1 or chemical blowing are poly- Pvdf layer.In a kind of preferred embodiment, the polyethylene foamed layer be extruded on the inner conductor 1 physical blowing it is poly- Pvdf layer.

This kind of coaxial cable, insulating layer 2 take physically foamed pe insulation layer, can be realized good insulating effect, It realizes that relative dielectric constant is low, and dielectric loss angle factor is small simultaneously, ensure that decaying is small.Physical blowing polythene material is than real Heart polyethylene is less susceptible to loss vision signal, also adds the flexibility of cable, easy for installation.The polyethylene of this kind of coaxial cable Or pvc sheath layer can protect cable in the place for requiring waterproof requirement high, make its not by mechanical force, friction, moisture, The factors such as burn into high and low temperature environment influence.

In addition, above-mentioned coaxial cable is in process of production, aluminium film can be firmly sticked on foamed insulation body, in work progress Interface will not open when bending angle is small, improve shield effectiveness, no signal leakage, not by the interference of outer signals, Have many advantages, such as that light-weight, cost performance is high, transmission rate is high, is suitable as economical transmission feeder.

(2) coaxial cable is a kind of low-loss power coaxial cable.

The inner conductor 1 of the coaxial cable is silver-coated copper wire, and the insulating layer 2 is that low-density polytetrafluoroethylene film is wrapped Layer, the internal shield 3 are silver-plated copper strips lapping layer, and the external shielding layer 4 is silver-coated copper wire braiding layer, and the sheath 5 uses Fluorinated ethylene propylene copolymer material is made.

Wherein:

A) inner conductor 1 is a silver-coated copper wire or is twisted by more silver-coated copper wires.

B) weight of the coaxial cable is 21~30kg/100m, for example, outer diameter is the coaxial cable of 9.9mm, weight For 21kg/100m；Outer diameter is the coaxial cable of 14.2mm, weight 30kg/100m.

C) impedance of the coaxial cable is 50 ohm.

D) operating temperature of the coaxial cable is -65~165 degrees Celsius.

This kind of coaxial cable is used as insulating layer using low-density polytetrafluoroethylene film is wrapped, so that the resistance to power of cable It improves, also, the wrapped internal shield of silver-plated copper band can also effectively reduce reflection power, so that power increases.The coaxial electrical Cable is suitable as the transmission feedback of the high power transmission occasions of electronic equipments such as communication, electronics tracking, warning, electronic countermeasure, navigation Line.

(3) coaxial cable is a kind of half soft loss coaxial cables.

The inner conductor 1 of the coaxial cable be silver-coated copper wire or copper-clad aluminum conductor, the insulating layer 2 be polyethylene foamed layer or Low-density polytetrafluoroethylene film wrapping layer, the internal shield 3 are copper foil longitudinal wrap layer, and the external shielding layer 4 is tinned wird Wicking layer is woven, the sheath 5 is made of polyvinyl chloride or fluorinated ethylene propylene copolymer material.

Wherein:

A) inner conductor 1 is copper-clad aluminum conductor or silver-plated copper single line.

B) weight of the coaxial cable is 3~8.1kg/100m, for example, outer diameter is the coaxial cable of 4.1mm, weight For 3kg/100m；Outer diameter is the coaxial cable of 7.6mm, weight 8.1kg/100m.

C) impedance of the coaxial cable is 50 ohm.

D) operating temperature of the coaxial cable is -65~165 degrees Celsius or is -55~85 degrees Celsius.

The coaxial cable lower than the loss of common semi-flexible cable 30% or more, the signal suitable for next-generation mobile communications pass It is defeated.

In a kind of preferred embodiment, a kind of half soft loss coaxial cables, in setting gradually from inside to outside Conductor 1, insulating layer 2, internal shield 3, external shielding layer 4 and sheath 5.Wherein, the inner conductor 1 of the coaxial cable is silver-plated copper Line, the insulating layer 2 are low-density polytetrafluoroethylene film wrapping layer, and the internal shield 3 is copper foil longitudinal wrap layer, the external screen Covering layer 4 is tinned wird braiding layer, and the internal shield 3 and the external shielding layer 4 are handled by wicking and are welded to connect Together, the sheath 5 is made of fluorinated ethylene propylene copolymer material.

In another preferred embodiment, a kind of half soft loss coaxial cables, including what is set gradually from inside to outside Inner conductor 1, insulating layer 2, internal shield 3, external shielding layer 4 and sheath 5.Wherein, the inner conductor 1 of the coaxial cable is silver-plated copper Line, the insulating layer 2 are polyethylene foamed insulating layer, and the internal shield 3 is copper foil longitudinal wrap layer, and the external shielding layer 4 is plating Tin copper wire woven layer, and the internal shield 3 and the external shielding layer 4 are handled by wicking and are welded together, it is described Sheath 5 is made of fluorinated ethylene propylene copolymer material.

Wherein, polyethylene foamed layer can be physically foamed pe insulation layer or chemical blowing polyethylene layer.This The preferred physically foamed pe insulation layer of embodiment.

(4) coaxial cable is a kind of steady phase loss coaxial cables.

Wherein:

A) inner conductor 1 is silver-plated copper single line.

B) weight of the coaxial cable is 1.6~14kg/100m, for example, outer diameter is the coaxial cable of 2.2mm, it is heavy Amount is 1.6kg/100m；Outer diameter is the coaxial cable of 7.8mm, weight 14kg/100m.

C) impedance of the coaxial cable is 50 ohm.

D) operating temperature of the coaxial cable is -65~165 degrees Celsius or is -55~200 degrees Celsius.

The insulating layer 2 of the coaxial cable uses low-density polytetrafluoroethylene (PTFE), has excellent chemical-resistant stability, makes Obtain cable environmental suitability with higher；The inner conductor 1 is made of silver-coated copper wire, is led using interior made of silver-coated copper wire Body has the advantages of temperature tolerance is strong, oxidation resistance is strong, high mechanical strength, to improve the steady phase loss coaxial cables Service life；The external shielding layer 4 is woven using silver-coated copper wire, can be played the shielding of anti-electromagnetic interference and be improved product machine The effect of tool intensity；The sheath 5 is preferably fluorinated ethylene propylene copolymer, both ensure that the important fingers such as pliability, resistance to cracking Mark requires, and is able to satisfy environmental requirement.

Therefore, which has the characteristics such as high stable phase, low-loss, low standing wave, strong interference immunity, can be used as phased array The connection feeder line of the equipment such as radar, vector network analyzer.

(5) coaxial cable is a kind of soft loss coaxial cables.

The inner conductor 1 of the coaxial cable is silver-plated copper stranded wire or single line, and the insulating layer 2 is that low-density polytetrafluoroethylene (PTFE) is thin Film wrapping layer, the internal shield 3 are silver-plated flat wire braiding layer, and the external shielding layer 4 is silver-plated flat wire braiding layer, the sheath 5 are made of polyurethane material.

Wherein:

A) weight of the coaxial cable is 5~30.5kg/100m, for example, outer diameter is the coaxial cable of 4.95mm, it is heavy Amount is 5kg/100m；Outer diameter is the coaxial cable of 13.3mm, weight 30.5kg/100m.

B) minimum bending radius is 25mm~67mm, for example, outer diameter is the coaxial cable of 4.95mm, minimum bend Radius is 25mm；Outer diameter is the coaxial cable of 13.3mm, minimum bending radius 67mm.

C) impedance of the coaxial cable is 50 ohm.

D) operating temperature of the coaxial cable is -55~85 degrees Celsius.

Coaxial cable tool can communicate, electronics tracking, warning, electronic countermeasure, the electronic equipments cable such as navigation, especially It is suitable as mobile position transmission, has many advantages, such as that soft, loss is low, uniformity is good.

Embodiment two:

A kind of coaxial cable electric connector, assembles, coaxial cable is shown with coaxial electric coupler with coaxial cable For along common central axis alignment.Include:

Shell 6, the shell 6 include first end and second end, and be connected to the first end and second end of the shell 6 First inner hole；

Tail sleeve 7, the tail sleeve 7 include the first end and second end of first end and second end and the connection tail sleeve 7 Second inner hole, the first end of the tail sleeve 7 are fixedly connected with the second end of the shell 6；

Insulating sleeve 8, the insulating sleeve 8 are positioned at the first end of the shell 6, and the center of the insulating sleeve 8 is set There is perforation；

Contact pin 9, one end of the contact pin 9 is at the perforation to the first end of the shell 6 of the insulating sleeve 8, institute The other end for stating contact pin 9 is equipped with locating slot 901；The inner conductor 1 of the coaxial cable passes through the second end of the tail sleeve 7, protrudes into The locating slot 901, and it is welded in the contact pin 9.The length of the contact pin 9 is longer than the length of the insulating sleeve 8, described to insert Needle 9 stretches out the both ends of the insulating sleeve 8.The connection locating slot 901 is additionally provided on the outer surface of the other end of the contact pin 9 Through-hole 902, scolding tin pours into the locating slot 901 from the through-hole 902, the inner conductor 1 of the coaxial cable is welded in institute State locating slot 901.

Several examples are enumerated below to illustrate.

It is a kind of shell 6 of coaxial electric coupler and the insulating sleeve 8, described as shown in Fig. 2, in the present embodiment Tail sleeve 7 is Demountable, is formed and is integrally formed after crimping.

The shell 6 of the coaxial electric coupler is straight-tube shape, and first inner hole is straight hole, the institute of the tail sleeve 7 Stating the second inner hole is smooth straight hole.Alternatively, the shell 6 is also possible to include lateral shell that central axes are arranged in a mutually vertical manner With longitudinal shell, the transverse direction shell and longitudinal shell cast are integrated, and first inner hole is L shape hole.

The outside of the first end of the tail sleeve 7 of the coaxial electric coupler is equipped with external screw thread, the second end of the shell 6 Inside be equipped with the internal screw thread that cooperates with the external screw thread.

The inner wall of the tail sleeve 7 of the coaxial electric coupler is equipped with a bushing 10, and the bushing 10 is insulating materials system At.The bushing 10 has an opposite front-end and back-end, and the hole for extending there through the coaxial cable, the hole have with The comparable internal diameter of outer diameter of the internal shield 3 of the coaxial cable.The bushing 10 is avoided well in dismounting to described The damage of coaxial cable can repeatedly use.

The coaxial electric coupler further includes a circular insulating trip 11, and the insulating trip 11 is set in the contact pin 9 The other end, one side press on the bushing 10, and there is diameter to be slightly larger than the coaxial electrical for the center of the insulating trip 11 The through-hole of the diameter of the inner conductor of cable.The inner conductor 1 of the coaxial cable passes through the insulating trip 11, protrudes into the contact pin 9 901 in locating slot, and it is welded and fixed.

In another preferred embodiment, the circumferencial direction of the insulating trip 11 is also provided with the circle being evenly distributed Hole.

In addition, the second end of the shell 6 of the coaxial electric coupler and the coaxial cable of part adjacent thereto The outer surface of sheath 5 be arranged with heat-shrinkable T bush (not shown), which plays the role of moistureproof and waterproof.

When assembly, first by the inner conductor 1 exposed after coaxial cable stripping sequentially pass through heat-shrinkable T bush, tail sleeve 7, bushing 10, Insulating trip 11 after being fixedly welded with the locating slot 901 of the other end of contact pin 9, is pressed into insulating sleeve 8.Insulating sleeve 8 is pressed into again In the second end of shell 6, shell 6 and tail sleeve 7 are locked by being threadedly engaged.Mobile heat-shrinkable T bush, makes one end against shell 6 Second end, finally heated heat-shrinkable T bush makes its contraction, so that coaxial cable and coaxial electric coupler are at being integral.

As shown in figure 3, a gasket 12, the pad can also be arranged between the side and the bushing 10 of the insulating trip 11 Piece 121 is annular shape, and the gasket 12 is used to compensate dielectric constant.When assembly, will first expose after coaxial cable stripping in lead Body 1 sequentially passes through heat-shrinkable T bush, tail sleeve 7, bushing 10, gasket 12, insulating trip 11, solid with the locating slot 901 of the other end of contact pin 9 After fixed welding, it is pressed into insulating sleeve 8.Insulating sleeve 8 is pressed into again in the second end of shell 6, by being threadedly engaged 6 He of shell Tail sleeve 7 is locked.Mobile heat-shrinkable T bush, makes one end abut the second end of shell 6, and finally heated heat-shrinkable T bush makes its contraction, makes Coaxial cable and coaxial electric coupler at being integral.

Embodiment three:

As shown in figure 4, a kind of production equipment of coaxial cable, including the insulating layer cladding along the sequence setting of production line direction Equipment, internal shield coating equipment and external shielding layer coating equipment.Wherein,

The insulating layer coating equipment includes one or more sequentially connected for exhausted in the outer surface of inner conductor cladding First winding machine 100 of edge layer and inner tensions positioned at the downstream of first winding machine 100 for adjusting cable First straining pulley group 200；

The internal shield coating equipment includes for the second winding machine in the outer surface of insulating layer cladding internal shield 300 and the inner tensions positioned at the downstream of second winding machine 300 for adjusting cable the second straining pulley group 400；

The external shielding layer coating equipment be included shielded layer outer surface cladding external shielding layer cable braiding machine It 600 and is wound for the cable after external shielding layer will to be coated to reel positioned at the downstream of the cable braiding machine 600 Take-up mechanism 700.

Between first winding machine 100 and the first straining pulley group 200, second winding machine 300 and described the Between two straining pulley groups 400, it is additionally provided with guide wheel group 500, the guide wheel group 500 includes at least two horizontally arranged Directive wheel.

Wherein, the cross-sectional view of first winding machine 100 is as shown in figure 5, basic structure and specific workflow are sketched such as Under: first winding machine 100 includes hollow carriage body 110, and the wrapping mechanism being arranged in inside the hollow carriage body 110.Institute The side wall for stating hollow carriage body 110 is equipped with the first perforation 120 and the second perforation 130, the second 130 faces first of perforation perforation 120.To Wrapped inner conductor is entered inside the hollow carriage body 110 by first perforation 120, receives the wrapped behaviour of the wrapping mechanism Make, by the twining package tape (being herein insulating layer) around being wrapped on inner conductor, after the completion of package operation, by second perforation 130 It is pierced by the hollow carriage body 110.

The twining package tape is around in advance on a wrapped tep reel 165, and the wrapped tep reel 165 is sheathed on one along axial direction and leads To the outside of pipe 121, the guide pipe 121 is connected to around first perforation 120.

The center of the guide pipe 121 is arranged one along axial central cavity, and inner conductor leads to from the central cavity It crosses.In the inside of the hollow carriage body 110, one end of the central cavity is connected to first perforation 120, the other end and institute State 130 face of the second perforation.To facilitate inner conductor to be connected to second perforation 130 from first perforation 120.

The specific structure of the wrapping mechanism as shown in fig. 6, further include one perpendicular to the guide pipe 121 around chartered steamer 150, the free end that the guide pipe 121 is set to around chartered steamer 150, the i.e. end far from first perforation 120.Its In, the center point around chartered steamer 150 is equipped with central tube 160, the free end of the central tube 160 and the guide pipe 121 It is connected with each other by a swivel bearing 170, specifically, the central tube 160 is sleeved on the outer ring of the swivel bearing 170, And the free end of the guide pipe 121 is then inserted into the inner ring of the swivel bearing 170, therefore the central tube 160 is led with described To can relative rotation between the free end of pipe 121.It is described that the outside of the central tube 160 is provided with ring body around chartered steamer 150, The ring body and the central tube 160 are connected by least one connecting rod 180, the connecting rod 180 of at least one around The radial arrangement of the central tube 160.Also, preferably two connecting rods 180, radially divided arrangement, especially mutually A diameter is synthesized, to guarantee the stationarity of the ring body rotation.A pulley 190, work are equipped in every connecting rod 180 When, the twining package tape is just connected to the pulley 190 from the wrapped tep reel 165, and after the pulley 190, due to The rotation around chartered steamer 150 drives the pulley 190 to rotate, and the pulley 190 drives the twining package tape accordingly to rotate, from And the wrapped outer layer to inner conductor.After wrapped inner conductor just from the free end of the guide pipe 121 stretching after, in advance On the way, receive the twining package tape around package operation.

Cable after receiving wrapping insulation layer is pierced by the hollow carriage body 110 from second perforation 130.Specifically, institute Stating the second perforation 130 can also be in the inside of the hollow carriage body 110, and close to one the second guide pipe of setting, described second is led The opening of the central cavity of guide pipe 121 described in Xiang Guanyu is also facing each other.

Above-mentioned first winding machine 100 can be set one, may be set to be it is multiple, such as setting three.To wrapped Inner conductor is penetrated from the first of first the first winding machine, from the second perforation of the winding machine after wrapped first layer insulating It is pierced by, then protrudes into first perforation of second the first winding machine, worn after wrapped second layer insulating from the second of the winding machine Hole is pierced by, and then protrude into the first winding machine of third first is perforated, from the second of the winding machine after wrapped third layer insulating Perforation is pierced by, so as to complete the wrapped of multilayer dielectric layer.

After the cable of wrapped insulating layer is pierced by from the second perforation 130 of the first winding machine 100, described the is advanced to One straining pulley group 200.Specifically, as shown in fig. 7, the first straining pulley group 200 is mainly by a cross bar 220 and a vertical bar 210 constitute a cross, i.e., are rotatably fixedly connected by a shaft.Also, position is fixed on vertical bar 210 One first pulley 211 of rotatable setting fixes one second pulley 221 of the rotatable setting in position on cross bar 220.Described turn The cross bar 220 is divided to for two parts, first part and second part, i.e. left and right side in figure by axis.First part, i.e., Counterweight 222 is arranged in the outer end in left side in figure；The second pulley 221 is arranged in second part, i.e. right side in figure.Also, it is wrapped The cable of insulating layer is around at least one circle in the first pulley 211 and the second pulley 221 simultaneously.Meanwhile being arranged When counterweight 222, anticlockwise torque in Fig. 7 caused by the gravity of the counterweight 222 should be lower than the second pulley Clockwise torque in Fig. 7 caused by 221 gravity, i.e., the described second pulley 221 should tend to leave first cunning Wheel 211 is opened with the cable remained attached between the second pulley 221 and the first pulley 211 with certain inside Power.

When the overtension, cable pulls on the upper end that the cross bar 220 turns to the vertical bar 210 around the shaft, So that the distance between the second pulley 221 and described first pulley 211 shorten, loosen the cable；When tension is too small, then The gravity of the second pulley 221 pulls on the upper end that the cross bar 220 leaves out the vertical bar 210 around the shaft, so that The distance between the second pulley 221 and the first pulley 211 increase, and tense cable.To pass through setting described first Straining pulley group 200, the cable stretch between first winding machine 100 and second winding machine 300 are able to carry out certain journey The automatic adjustment of degree.

Receive insulating layer it is wrapped after cable, receiving to discharge the stress of its inside, and to the tension of its inside After being adjusted, under traction, the second winding machine 300 is advanced to.The structure of second winding machine 300 and described first The structure of winding machine 100 is identical, and difference is only that the twining package tape placed in wrapped tep reel 165 is different, the first winding machine 100 around Band is insulating layer, and the twining package tape of the second winding machine 300 is internal shield.This will not be detailed here for the structure of second winding machine 300.

When cable receive internal shield it is wrapped after the completion of, be pierced by, advance to described from second winding machine 300 Second straining pulley group 400.

Specifically, as shown in the front view of Fig. 8, the second straining pulley group 400 includes one and is placed on horizontal plane Support 410, the support 410 include a vertical stress frame 415, and the stress frame 415 is preferably arranged as two in parallel Stress support, the two sides of the stress frame 415 is respectively arranged the litter of a vertical direction, i.e., the first litter 420 and second is sliding Pole 430.Two pulleys can be rotatably set in the stress frame 415 along the vertical direction, in upper and lower position, wherein third is sliding Wheel 411 is fixed on the lower part of the stress frame 415, and the 4th pulley 421 is set to the top of the stress frame 415.Also, it is described 4th pulley 421 can be slided up and down along first litter 420, specifically: the 4th pulley 421 is set to a sliding shoe It can be rotated on 425, the sliding shoe 425, which can slide up and down to, to be sleeved on first litter 420.Such as the side view institute of Fig. 9 Show, a connection chain 440 is connected on the sliding shoe 425, and the connection chain 440 bypasses determining for the upper end of the stress frame 415 It after pulley, extends downwardly, and is connected on a balancing disk 433 from the another side of the stress frame 415, the balancing disk 433 It is sleeved on the second litter 430 of the another side of the stress frame 415, can also slide up and down.It is placed on the balancing disk 433 The clump weight 432 of different quality, to adjust the 4th pulley 421 to the tension of cable.After leaving second winding machine 300 Cable, while being around on the third pulley 411 and the 4th pulley 421 at least one circle.And in setting clump weight 432 When, the gravity of the clump weight 432 should should tend at least more than the gravity of the 4th pulley 421, i.e., described 4th pulley 421 Uplink leaves the third pulley 411, with the electricity remained attached between the 4th pulley 421 and the third pulley 411 Cable has certain inner tensions.

When the overtension, cable pulls on the 4th pulley 421 along 420 downlink of the first litter, so that institute The shortening of the distance between the 4th pulley 421 and described third pulley 411 is stated, cable is loosened；When the tension is too small, then described Four pulleys 421 by under the gravity of the clump weight 432 connected by the connection chain 440, Xiang Suoshu stress frame 415 Upper end is mobile, so that the distance between the 4th pulley 421 and the third pulley 411 increase, tenses cable.To lead to Cross and the second straining pulley group 400 be set, and the clump weight 432 of setting certain mass, second winding machine 300 with Cable stretch between the cable braiding machine 600 is just able to carry out a degree of automatic adjustment.

In a kind of more preferably embodiment, the two sides of the stress frame 415 of above-mentioned second straining pulley group 400 can also be distinguished One directive wheel (not shown) is set, and two directive wheels are symmetrical.In work, cable inputs in the horizontal direction, first around It is laid out further around after the third pulley 411, the 4th pulley 421 by the third pulley 411 through first directive wheel, Second directive wheel of last pile warp, and continue to move in the horizontal direction.Cable is tensioned to the third pulley 411 and the described 4th Between pulley 421, two directive wheels have adjusted the moving direction of cable, and stabilize the tension of cable.

Receive internal shield it is wrapped after cable, receiving to discharge the stress of its inside, and its inside opened It after power is adjusted, under traction, moves on, into cable braiding machine 600.

As shown in Figure 11~Figure 13, a kind of cable braiding machine, comprising: rack 640, the rack 640 are equipped with work top 641；The work top 641 is equipped with multiple braid assemblies.The braid assembly and the work top 641 pass through first turn Axis 632 is rotatablely connected；The center of the work top 641 is equipped with cable punching hole 642.It is provided at the cable punching hole 642 vertical Directly in the wire-passing tube 645 of the work top 641, the upper and lower side of the wire-passing tube 645 be respectively formed cable portal with cable into Hole.The wire-passing tube 645 is set, it is ensured that litzendraht wire is straightened naturally before wrapping up external shielding layer, will not be in the work of tractive force Cause to deform under, reduces the probability of fracture.

The top of the work top 641 is equipped at least one second directive wheel 643, and second directive wheel 643 passes through Shaft and the rack 640 are rotatablely connected.

The lower section of the work top 641 is equipped at least one first directive wheel 644, and first directive wheel 644 passes through Shaft and the rack 640 are rotatablely connected.

The cable pile warp of wrapped internal shield is located at first directive wheel 644 of 641 lower section of work top, from Across the wire-passing tube 645 on down, pile warp is drawn after being located at second directive wheel 643 of 641 top of work top, And it is wound to take-up pulley 730.

In an advantageous embodiment, the surface of the wire-passing tube 645, which is additionally provided with, is fixedly connected on the rack 640 Position-limiting drum 646.After cable is pierced by from the wire-passing tube 645, litzendraht wire (wire) that the braid assembly is drawn to its into Row package, the cable after having wrapped up external shielding layer bridge second directive wheel 643 after passing through the position-limiting drum 646.The limit The setting of position cylinder 646, so that the cable after processing preferably straight is wrapped on second directive wheel 643.

As shown in figure 12, the braid assembly includes: around rotatable first turntable 630 of first rotating shaft 632；Described first The lower section of turntable 630 is equipped with the motor (not shown) for driving first turntable 630 to rotate；First turntable 630 is set There is second turntable 631 on the surface for being pierced by first turntable 630 upwards, the second shaft 633 passes through second turntable 631 Center, and second turntable 631 can be rotated around second shaft 633.

In an advantageous embodiment, first turntable 630 is equipped at least two second turntables 631, such as Three, three second turntables 631 are set to the upper surface of first turntable 630 around the first rotating shaft 632.

The top of each second turntable 631 is fixedly connected with a spindle.In an advantageous embodiment, such as Figure 13 institute Show, the spindle includes:

Pedestal 601, the pedestal 601 is fixedly connected with second turntable 631 by four fixed screws 634, described Pedestal 601 is equipped with two blocks of side plates 602.

Spool 603 is carried through one between the side plate 602, the actinobacillus wheel 621 for being wound with litzendraht wire is rotationally set in institute It states and carries on spool 603；Described one end for carrying spool 603 passes through one block of side plate 602, and one surrounding periphery band of connection is with teeth to be turned Wheel 604.

Opening is equipped on two blocks of side plates 602, a connecting shaft 605 is set between the opening, sets in the connecting shaft 605 There is third directive wheel 606, the third directive wheel 606 can be rotated around the connecting shaft 605；Braiding on the actinobacillus wheel 621 Line exports after bypassing the third directive wheel 606 in connecting shaft 605.

The both ends of the connecting shaft 605 stretch out the opening and are separately connected a sliding block 607, wear on the sliding block 607 There is the guide post 608 of vertical direction, one end of the guide post 608 is fixedly connected with the pedestal 601, the guide post 608 other end is fixedly connected by the first fixed block 609 with the outer wall of the side plate 602, wherein first fixed block 609 are fixedly connected by bolt with the outer wall of the side plate 602.It is cased with tensioning spring 610 in the guide post 608, described Tight spring 610 is set between first fixed block 609 and the sliding block 607.

The second fixed block 611 is additionally provided on the outer wall of side plate 602 equipped with runner 604, on second fixed block 611 Equipped with the through-hole for running through second fixed block 611, brake bar 612 runs through the through-hole, and can be along second fixed block 611 It slides up and down, the brake bar 612 is located at the top of the sliding block 607；The top of the brake bar 612 connects a driving lever 613 First end, the second end of the driving lever 613 is located at the top of the lower section of the runner 604, first fixed block 609, institute Region of the driving lever 613 between its first end and second end is stated, is rotatably connected by shaft 614 and the outer wall of the side plate 602 It connects.In an advantageous embodiment, the second end of the driving lever 613 is equipped with the protrusion towards the runner 604, the runner The distance between 604 adjacent tooth can accommodate the insertion of the protrusion.

The bottom end of the brake bar 612 is equipped with axle sleeve 615.Reset spring 616 is cased on the brake bar 612, it is described multiple Position spring 616 is set between second fixed block 611 and the axle sleeve 615.The brake bar 612 not by external force at present Drop, automatic homing under the action of reset spring 616.

The top of two blocks of side plates 602 is fixedly installed with top plate 618, is provided with universal bearing 619 on the top plate 618.Institute The upper end for stating universal bearing 619 is fixedly connected with a guide rod 620, is set on the guide rod 620 there are two the 4th directive wheel 622. Litzendraht wire is drawn from the spindle, and the weaving point that litzendraht wire intersects is reached after pile warp two the 4th directive wheels 622.

In addition, the side of the sliding block 607 is additionally provided with handle (not shown), facilitates manual operation, make cable braid The spindle of component stops operating, manually implemented braking brake.

The cable for having wrapped up litzendraht wire is laid out from second directive wheel 643 of cable braiding machine, pile warp take-up mechanism 700 The 5th directive wheel 760 after, arrangement be wound on the take-up pulley 730 of take-up mechanism 700.Wherein, the 5th directive wheel 760 are set to the top of mounting base 710, the installation cover for seat 710 is located on lead screw 740, and the lead screw 740 is can bidirectional rotation It is rotated under the driving of first rotary drive motor 750, drives an end motion of the 5th directive wheel 760 from the lead screw 740 It to the other end, moves back and forth, speed is determined by the revolving speed of first rotary drive motor 750；The take-up pulley 730 It is set in a rotary shaft 731, the rotary shaft 731 rotates under the driving of the second rotary drive motor 751.The take-up pulley 730 per revolutions, the 5th directive wheel 760 move a line footpath distance along the lead screw 740, make the take-up pulley 730 Close take-up.

Specifically, Figure 14 gives a kind of structural schematic diagram of take-up mechanism 700.As shown in figure 14, the take-up mechanism 700 include pedestal 701, and shown pedestal 701 is placed on level ground, in horizontally disposed.One branch is set on the pedestal 701 Frame 702, the bracket 702 include two side stands 720.A horizontal rotary shaft 731 is connected between the side stand 720, The both ends of the rotary shaft 731 are rotatably mounted with the bracket 702 and connect, and the rotary shaft 731 can be used around axial-rotation In winding cable.

Two side stands 720 are equipped with the second swivel bearing, and one end of the rotary shaft 731 connects one of side The rotating part of the second swivel bearing on bracket 720, the other end are connected to the second swivel bearing on another side stand 720 Rotating part.

One take-up pulley 730 is set in the rotary shaft 731, the cable winding on the take-up pulley 730, so as to More easily to remove and replace take-up pulley 730.The take-up pulley 730 be preferably section be it is I-shaped, i.e., in different height Width is all equal, so that every layer of open ended coil count is all equal on different height.

In one more preferably embodiment, second rotary drive motor 751 is connected with the rotary shaft 730 by belt Connect driving rotation.It is that can easily adjust belt tightness degree using the benefit that belt connects, so that it is guaranteed that rotation is uniform Property, that is, receive the uniformity around cable.

Between two side stands 720, be also connected with the lead screw 740 of a horizontal direction, the lead screw 740 with it is described Rotary shaft 731 is parallel, and the lead screw 740 can especially be connected to two institutes around being axially rotationally installed on the bracket 702 It states between side stand 720, for example, being respectively equipped with fixed block on two side stands 720, being equipped with rotary shaft in fixed block It holds, rotating part of the both ends of lead screw 740 respectively with swivel bearing in a fixed block is mutually fixed, to guarantee that the lead screw is driving It can be around axial-rotation under dynamic.

Specifically, the lead screw 740 connects the first rotary drive motor 750, the rotation of first rotary drive motor 750 Turn drive shaft, swivel bearing in the one of fixed block of driving rotating part, rotate.Also, the first rotation driving Motor 750 can drive the lead screw 740 to make positive and negative bidirectional rotation around axial.To drive the mounting base on the lead screw 740 710, together with the 5th directive wheel 760 in the mounting base 710 along the lead screw 740 axial direction, make positive and negative two-direction moving. I.e. so that the cable drawn from the 5th directive wheel 760 is arranged successively and is wound on the take-up pulley 730.

The central axis of 5th directive wheel 760 should with 731 keeping parallelism of rotary shaft, so as to ensure cable After the 5th directive wheel 760, it is directed toward while vertical direction can be kept the rotary shaft 731, to vertically be wound in institute It states on rotary shaft 731 or the take-up pulley 730.

In actual work, it is only necessary to the rotation speed of the lead screw 740 and the rotation speed of the rotary shaft 731 be arranged Match, i.e., when the rotary shaft 731 rotates a circle, under the rotation driving of the lead screw 740, the mounting base 710 is just One line footpath distance of good axially translated wound cable, so as to guide the cable winding in the take-up pulley 730 different location, to realize uniform winding and the arrangement of cable.

Example IV:

Figure 15 is a kind of production method flow chart of coaxial cable of preferred embodiment.

As shown in figure 5, a kind of production method of coaxial cable, comprising:

In conclusion the present invention provides a kind of coaxial cable and its production equipment and method, design rationally, working performance It is good, it can be carried out with whole-course automation, dramatically reduce manual working, improve production efficiency.

Specific embodiments of the present invention are described in detail above, but it is merely an example, the present invention is simultaneously unlimited It is formed on particular embodiments described above.To those skilled in the art, any couple of present invention carries out equivalent modifications and Substitution is also all among scope of the invention.Therefore, without departing from the spirit and scope of the invention made by equal transformation and Modification, all should be contained within the scope of the invention.

Claims

1. a kind of coaxial cable, it is characterised in that: the coaxial cable is successively arranged inner conductor, insulating layer, interior screen from inside to outside Cover layer, external shielding layer and sheath；

The inner conductor is one of copper wire, copper-clad aluminum conductor and silver-coated copper wire；

The insulating layer is polyethylene foamed insulating layer or low-density polytetrafluoroethylene film wrapping layer；

The internal shield is plastic-aluminum combined film longitudinal wrap layer, silver-plated copper strips lapping layer, copper foil longitudinal wrap layer and the braiding of silver-plated flat wire One of layer；

The external shielding layer is tinned wird braiding layer, silver-coated copper wire braiding layer, tinned wird braiding wicking layer and silver-plated flat wire One of braiding layer；

The sheath is made of polyethylene, polyvinyl chloride, fluorinated ethylene propylene copolymer or polyurethane material.

2. a kind of coaxial cable according to claim 1, which is characterized in that one end of the coaxial cable is connected with coaxially Electric connector, the coaxial electric coupler include:

Shell, the shell include first end and second end, and the connection shell first end and second end first in Hole；

Tail sleeve, the tail sleeve include in the second of the first end and second end of first end and second end and the connection tail sleeve Hole, the first end of the tail sleeve are fixedly connected with the second end of the shell；

Insulating sleeve, the insulating sleeve are positioned at the first end of the shell, and the center of the insulating sleeve is equipped with perforation；

One end of contact pin, the contact pin is run through at the perforation to the first end of the shell of the insulating sleeve, the contact pin The other end is equipped with locating slot；The inner conductor of the coaxial cable passes through the second end of the tail sleeve, protrudes into the locating slot, and weld It is connected to the contact pin.

3. a kind of production equipment of coaxial cable, it is characterised in that: the production equipment includes being arranged along production line direction sequence Insulating layer coating equipment, internal shield coating equipment and external shielding layer coating equipment；Wherein,

The insulating layer coating equipment includes one or more sequentially connected for coating insulating layer in the outer surface of inner conductor The first winding machine and the inner tensions positioned at the downstream of first winding machine for adjusting cable the first straining pulley Group；

The internal shield coating equipment include for the outer surface of insulating layer cladding internal shield the second winding machine and Positioned at the second straining pulley group of the inner tensions for adjusting cable in the downstream of second winding machine；

The external shielding layer coating equipment be included shielded layer outer surface cladding external shielding layer cable braiding machine, Yi Jiwei In the downstream of the cable braiding machine for the cable after cladding external shielding layer to be wound the take-up mechanism to reel.

4. a kind of production equipment of coaxial cable according to claim 3, which is characterized in that first winding machine or institute Stating the second winding machine includes:

Hollow carriage body and wrapping mechanism, the side wall of the hollow carriage body are equipped with the first perforation and the second perforation, wherein the second perforation Face first is perforated；

The wrapping mechanism is set to the inside of the hollow carriage body, including a guide pipe, and the guide pipe is connected to described Around first perforation；

The center of the guide pipe is arranged one along axial central cavity；

The wrapping mechanism further includes a change perpendicular to the guide pipe, and the center point of the change is equipped with central tube；

Further, the connecting rod is two, mutually synthesizes a diameter.

5. a kind of production equipment of coaxial cable according to claim 3, which is characterized in that the first straining pulley group packet It includes: the vertical bar and a cross bar of connection can be relatively rotated by a shaft；One is rotatably arranged on the vertical bar First pulley；The cross bar is divided into two parts, first part and second part using the shaft as boundary；Outside first part End setting counterweight；One second pulley is rotationally arranged at second part.

6. a kind of production equipment of coaxial cable according to claim 3, which is characterized in that the second straining pulley group packet Include: a stress frame is stood on a horizontal support, and a litter is respectively arranged in the two sides of the stress frame；One third is sliding Wheel is fixed on the lower part of the stress frame, and the 4th pulley is set to the top of the stress frame the same face, and the described 4th is sliding Wheel is slided up and down along litter.

7. a kind of production equipment of coaxial cable according to claim 3, it is characterised in that: first winding machine and institute State between the first straining pulley group and/or between the first straining pulley group and second winding machine and/or described second around Between chartered plane and the second straining pulley group, it is additionally provided with guide wheel group, the guide wheel group includes that at least two horizontal directions are set The directive wheel set.

8. a kind of production equipment of coaxial cable according to claim 3, which is characterized in that the cable braiding machine packet It includes:

The braid assembly includes: around rotatable first turntable of first rotating shaft；The lower section of first turntable is equipped with driving institute State the motor of the first turntable rotation；First turntable is equipped with the second turntable for being pierced by the surface of first turntable upwards, the Two shafts pass through the center of second turntable, and second turntable can be rotated around second shaft；Described second turn Weaving unit is fixedly connected with above disk；

The weaving unit includes: pedestal, and the pedestal is equipped with two blocks of side plates；Spool is carried through one between the side plate, around There is the spool of litzendraht wire to be rotationally set on the load spool；Described one end for carrying spool passes through one block of side plate, even It is connected to runner, the surrounding periphery of the runner is radial to be equipped with tooth；Opening, at least one connecting shaft are equipped on two blocks of side plates Between the opening, the connecting shaft is equipped with the first directive wheel, and first directive wheel can be rotated around the connecting shaft；Institute The both ends for stating connecting shaft stretch out the opening and are separately connected a sliding block, and the guide post of vertical direction is equipped on the sliding block, One end of the guide post be fixedly connected with the base, the other end of the guide post passes through the first fixed block and the side The outer wall of plate is fixedly connected；The second fixed block is additionally provided on the outer wall of side plate equipped with runner, brake bar runs through described second Fixed block, and can be slided up and down along second fixed block, the brake bar is located at the top of the sliding block；The brake bar Top connects the first end of driving lever, and the second end of the driving lever is located at the top of the lower section of the runner, first fixed block； Region of the driving lever between its first end and second end, is rotatably connected by shaft and the outer wall of the side plate；

9. a kind of production equipment of coaxial cable according to claim 3, which is characterized in that the take-up mechanism includes:

A bracket is arranged on the pedestal in horizontal pedestal, directive wheel and mounting base, and the bracket includes two side stands； A horizontal rotary shaft is connected between the side stand, the rotary shaft can be around axial-rotation；

The lead screw of a horizontal direction is also connected between the side stand, the lead screw is parallel to the rotary shaft；The lead screw It can be around being axially rotationally installed on the bracket；

The directive wheel is rotationally arranged at the top layer of the mounting base, and the mounting base further includes the screw hole of a perforation, The internal screw thread of the screw hole is engaged with the external screw thread of the lead screw；The central axis of the directive wheel is parallel with the rotary shaft.

10. a kind of production method of coaxial cable, which is characterized in that the production method includes: