RRU Optical Fiber Cable Production Line

The main part：

1. PN630-800 FRP reinforced core pay-off with motor     1set

2. 4 way filling rod/tight buffer fiber driven pay-off

with backtwist cage stranders                       1set   

3. 16 way kevlar driven pay-off stranding machine       1set

4. 70/25 Extruder         1set

5. warm water trough             4m

6. Warm water tank       1set

7. Cold water trough       12m

8. Blow drier         1set

9. Laser diameter gauge      1set

10. Inkjet printer       1set（Optional）

11. Caterpillar tractor      1set

12. Horizontal accumulation           1set

13. PN800 Double take-up machine   1set

14. Electric control system     1set

First, equipment use and summarizes

The production line use for the production of RRU optical fiber cable,

Such as GDFJAH, GDFKJH, GJYFJH, GJYWFJH, GJYFXH and other structures 1 ~ 2 fiber RRU optical fiber cable;Extrusion materials suitable for PVC, flame retardant PE, low smoke halogen free (LSZH) ,TPU etc.;All the products meet the requirements of the "YD/T 2289.1-2011 cable for wireless remote radio unit Part1：optical fiber cable" standard.

The production line extruder motor,caterpillar control system using MITSUBISHI 10.4 'touch screen, SIEMENS PLC programming control, Danfoss inverter;winding with AC servo driving control system, which can not only be the linkage control, but also can be controlled by single action;The screw speed, the production line speed, the extruder current, the caterpillar current and other parameters can be set,display,operate on the touch screen.

The production line is advanced, high degree of automation, intuitive parameters, safe operation, convenient;High stability and reliability,RRU optical fiber cable out diameter uniform, surface smooth and high production speed,Is the leading technology RRU optical fiber cable production equipment.

Second, the main technical parameters

1. Tight buffer fiber diameter:Φ0.9mm/Φ0.6mm

2. Tight buffer fiber payoff tension: 0.4 ~ 1.5N (adjustable)

3. Tight buffer fiber payoff spool specifications: PN500

4. Filling rod/reinforcement diameter:≤Φ2.0mm

5. Filling rod/reinforcement payoff spool specifications:PN500 spool

6. Filling rod/reinforcement payoff tension: 3N～10N(adjustable)

7. Maximum outside diameter after stranding:≤Φ7.0mm

8. speed of production line:≤80m/min(4core，PVC/TPU)        

9. Number of cable core:4cores

10. Number of aramid yarn:16 spindles

11. Extruder:SJ70/25

12. take-up tension: 5-20N (adjustable)

13. double take-up spool specifications:PN800 spool

14. Production line length:about37m

15. power of production line:～85Kw

16. production line operation direction: from left to right(or by the user)

17. production line color: sea blue(or determined by the user)

18. center height of production lines:1000mm

19. installation layout of production line:～35(L)×3(W)×2.8(H)m

20. Total weight of production line:～25T

Third, equipment configuration and description

1, PN800 type FRP driven pay-off: 1 sets

①Rocker type shaftless structure,Loading and unloading reel: electric lift,

Pneumatic clamping and relaxation; Driven by AC frequency conversion motor,

The tension swing bar controls the pay-off speed.

②Drive motor power: 4KW；

③FRP diameter:Ф0.5mm～Ф2.0mm；

④FRP wheel specifications:PN630～800mm.

2, Cage type stranding machine with backtwist(2 ways tight buffer fiber drived payoffs and 2 ways FRP (or filling rod) drived payoffs):1 sets

For Stranding RUU optical cable core,The stranding cage adopts the whole front and rear bearing support structure,It is composed of frame, main reducer, main shaft, cradle, drived payoff mechanism, stranding mechanism, brake and wire  collecting die.

The cradle is made of high-quality carbon structural steel,The locking mode is unilateral thread locking,

①.most loaded : 4 spools.

②.Spool size: PN500 (external diameter 500 x disk width 300 x inner hole 56 mm).

③.Pay0ff motor power:1.1kwX4 set.

④Payoff tension range: 1N ~ 10N (adjustable).

⑤stranding motor power: 11kW.

⑥Cage rotating speed: ≤100rpm.

⑦Stranding pitch: 50 ~ 500 mm.

3, Aramid yarn driving pay-off and stranding machine: 1 sets

The equipment is used for stranding aramid yarn outside the optical cable core so as to increase the tensile resistance of the optical cable.

The equipment use active pay-off method,The tension detection special control cable tension constant without being attenuated,Independent motor drive spindle rotation to achieve stranding,Through the PLC calculation and output drives the frequency converter of the main motor rotates according to the set speed to realize the pitch.

①Maximum load quantity:16 spools.

②yarn size: 265mm (outside diameter) × 94mm (inner diameter) × 290mm (lenth).

③The maximum weight of the yarn:10 kg.

④Max speed of cage: 100 rpm.

⑤Yarn pay-off drive motor: 0.55KW.

⑥The adjusting range of yarn tension:2 ~ 30N.

⑦Main motor power:11 kw.

⑧The pitch range:300 ～ 650mm.

4, SJ-70×25 extrusion machine: 1 sets

①BM screw 1 (suitable for extrusion of flame retardant PE material and flame retardant PVC material),And low smoke halogen free screw 1 (suitable for flame retardant low smoke halogen free material),Screw length diameter ratio 25:1;

②30Kw AC motor drive,Hardened surface Gearbox;

③Extrusion amount:～80Kg/h;

④5 stages heating: the cylinder 3 section, the cross-head 2 paragraph. 

5,Special kafe brake type cross-head for RUU optical fiber cables(tips/die,User self allocation):1 sets

①Self centering and free adjustment cross-head,SUS136 stainless steel is used as the cross-head material,Vacuum quenching processing,Diverter made of 38CrMoALA steel,The rest uses 40Cr steel,All nitrogen treatment；

②Suitable for flame retardant low smoke halogen free material, flame retardant PE material and flame retardant PVC/TPU material.

6, configure 75Kg automatic feeding, drying machine: 1 sets

7, 4m double layer stainless steel hot water trough (can be moved back and forth 400mm): 1 sets　　

8, 0.2m³ stainless steel constant temperature water tank: 1 sets

①The hot water tank is a double layer structure, the stainless steel heater, the hot water circulation system uses the water pump to transport, has the automatic water supply, overflow device;

②RKC temperature control instrument control, PID adjustment feedback, temperature control range: room temperature ～80℃.

9, 12m stainless steel cooling water trough (including drying device): 1 sets

①The cooling water trough is made of stainless steel,adjusting the amount of water by the ball valve;

②Drying device use half in pairs structure,The threading operation is convenient.

10, XY two-way diameter gauge: 1 sets

11, TQD-500 type Caterpillar traction: 1 sets

The flat belt traction mode, pneumatic clamping,Using frequency inverter;

①maximum traction force:500kgf.

②applicable diameter:≤Ø30mm.

③contact length of track:850mm.

④track width:80mm.

⑤number of clamping cylinders:3 pairs.

⑥Maximum tractive speed:150m/min.

12, ink-jet printing machine: 1 sets (Optional)

13、overhead magnetic powder tension accumulator:1 sets

①Overhead accumulator structure,The pulley and the fixed wheel multi piece wheel group,AC 1.5KW motor driven magnetic powder clutch to control pulley tension,Through the tension setting,Let the tension in the production (storage line) to maintain a constant process,High precision sensor speed measurement,The meter wheel rotates in a single direction to ensure the meter precision.

②Take-up tension:5-20N(Adjustable)

③Accumulating length:100m

④Pulley and the fixed wheel diameter:ø270mm.

14, ø800 double spool take-up and winding machine: 1 sets

①With shaft type structure,AC 4.0Kw motor drive,Aluminum alloy worm gear reducer,Biaxial magnetic powder clutch group transmission,Drive take-up reel;

②Delta 750W AC servo system drive screw move around to wind,SIEMENS TD400, PLC programming control,The winding speed is always synchronized with the take-up speed;Through TD400 settings, can meet the requirements of different winding pitch;The reversing device adopts adjustable mode,Can be adjusted according to the width of the reel,To ensure that the winding and change direction in a reasonable position;

③Can be arbitrarily set to the length of the winding reel,Automatic stop after receiving the preset length,Manual chang-over reel;

④The production line is equipped with overhead magnetic powder tension accumulating, so it can be continuous production without break.

⑤Specification for take-up reel: ø400×ø60×300～320mm,ø500×ø56×315～375mm,ø800×ø80×600mm（PN800 spool）

15, ø800 type single reel winding and take-up machine: 1 sets

①Gantry type shaftless structure,The reel is controlled by electric lifting and manual screw clamping;

②AC 4.0Kw motor drive,Aluminum Alloy worm gear reducer transmission,

smooth rod winding displacement;

③Specification for take-up reel:ø800×ø80×600mm（PN800 spool）.

16, electrical control system: 1 sets

①Standard rittal cabinet specification,Wire mark in electric cabinet wiring,Mark with Numbering jet printing machine,Clearly visible,Have reliable grounding for all ground wires and shells of the equipment;

②Electronic control system uses MITSUBISHI 10.4 'touch screen,SIEMENS PLC programming control, Danfoss inverter speed control;The whole equipment can be centralized control, but also single action control;Screw speed, production line speed,extruder current and other parameters can be displayed and set operation on the touch screen;Production operations are achieved through the Man-machine interface,Control system including process monitoring,Process menu system, parameter setting, real-time display, alarm monitoring, etc.;

③6 stage temperature control heating(extruder body 220v、3 stage heating,cross-head and mould 220v、2 stage heating,Constant temperature water tank  220v、1 stage heating),Solid-state relay output,Using RKC temperature control instrument, PID adjust feedback；

④Low voltage electrical equipment using Tianshui 213 products,Schneider or other brands,Electrical installation conforms to IEC international standard.