The optical fiber secondary coating production line is mainly used for extruding 2 to 12 core fiber outer diameter Ф1.5 to Ф3.0 mm fiber loose tube bundle tube and cable filling rope extrusion. Extrusion materials should be suitable for PBT, PP, PC and PE. The extrusion shape is round, uniform and smooth.

This machine has the following features:

1. The design speed of the production line is 800M/Min, and the production speed is ≥500-600m/min (Ф1.80mm, wall thickness 0.30mm, PBT beam tube)

2. Machine excess length control range: 0 ~ 3 ‰.

3. In order to improve the stability and reliability of the product, the cold water circulation system of the machine adopts automatic constant temperature control and is equipped with a refrigeration device.

4. The fiber filling system has a constant temperature control device to make the filling amount accurate, stable and reliable.

5. The key electronic control components in production are all made of high quality products with reliable quality and convenient maintenance.

6. The extruder adopts 60mm, and the length diameter ratio is 25:1.

3.1. Optic-fiber core No:12 Cores

3.2. Optic-fiber pay-off tension: 0.4-1.5N±0.05N

3.3. Optic-fiber pay-off bobbin size: 25km and 50km two kinds of optical fiber bobbin

3.4. Tube diameter: Ф1.5mm- Ф3.0mm

3.5. Continuous production length: Max 50kw

3.6. Water temperature in hot water tank: room temperature - 80℃

3.7. Refrigerator outlet temperature: 15℃-25℃ (adjustable)

3.8. Take-up tension: 2.5～8N

3.9. Production line speed: 5～500m/min(Ф1.7mmPBT tube)

3.10. Die and jelly-filling component: Ф1.8mm, Ф2.3mm, Ф3.0mm

3.11. Wire diameter deviation: ±0.03

3.12. Excess length control range: 0～3‰

3.13. Excess length control accuracy: ±0.2‰

3.14. Length metering tolerance:<2‰<>

3.15. Optic-fiber extra loss after coating:<0.02db>

3.16. The power of the whole machine: about 60kw

3.17. Production direction: as contract

3.18. Color: equipment RAL5017; electrical part RAL7032, safety color: RAL2003

4.1. Optic-fiber pay-off

4.1.1. The whole cabinet, cantilever shaft type loading bobbin, fast mandrel locking device fixed bobbin, aluminum wear-resistant guide wheel.

4.1.2. 12 Fiber active pay off: AC motor active pay off, Danfoss three-phase 380V, Danfoss inverter speed control.

4.1.3. With fiber break alarm, install warning lights.

4.1.4. The swing rod dancer is equipped with a damping device at the lower limit to prevent the dancer from vibrating too much when the fiber is broken.

4.1.5. Swing rod tension control mode is median control, PID adjustment. The tension can be adjusted. The adjustment block is at the panel, the weight is adjusted, and the swing rod is marked with an etched scale.

4.1.6. Fiber optic pay off bobbin is a standard 25, 50km fiber optic bobbin

a. Bobbin max outer diameter: Φ280mm

b. Bobbin max width: 236mm

c. Bobbin shaft hole: Φ25.4mm

d. Max weight: 10KG

4.1.7. Take-up tension and accuracy: 0.4-1.0N±0.05N

4.1.8. Line structure speed: 800m/min

4.1.9. The fiber outlet is equipped with a static elimination device and a fiber

4.2.1. A high-voltage static-eliminating device is provided at a position before the fiber enters the oil-filled mold, and is equipped with a fiber clamping device.

The vacuum pumping method is used to supply oil to the vacuum sealed jelly storage tank by the primary oil supply pump. When the jelly in the storage tank is lower than the lower limit position, the primary pump is opened. The primary pump is closed when the jelly is up to the upper limit. The vacuuming device extracts the air bubbles, and the storage tank is circulated out of the oil pump to output the jelly needle. Multi-set of equipment can use it at the same time to realize the centralized supply of the jelly, and the excess jelly is returned to the storage tank through the pressure switch.

4.3.1. The jelly machine adopts a vacuum degassing jellt machine, and the vacuum pressure can be adjusted;

4.3.2. The storage tank is made of stainless steel. The jelly stored in the plastic storage tank can make the motor of the first-stage rubber pump not work continuously, so as to ensure the service life of the whole system and the safety of the loose tube production, and the liquid level control of the rubber storage tank is called heavy sensor control mode.

4.3.3. Jelly temperature: room temperature -70 ° C (adjustable), vacuum: -0.05Mpa ~ -0.06Mpa;

4.3.4. The circulating pump motor driven by Danfoss three-phase inverter makes the oil supply continuously adjustable.

4.3.5. Metering pump adopts imported brand, drive motor uses Panasonic AC servo system;

4.3.6. There are jelly high and low alarms (high or low alarms each output 2 or 3 passive contacts for display on the industrial computer), vacuum display and alarm, with sound and light alarm lights;

4.3.7. The advanced and perfect electrical control of the device, the low-voltage electrical appliances use Siemens or Schneider products, and the PLC adopts the Siemens Smart series products, which can automate the process without manual inspection;

4.3.8. After the degassing treatment of the optical fiber jelly, it can ensure the size of bubbles and solid debris without visual force;

4.3.9. With two jelly output to the needle. The jelly tube heating temperature controller adopts RKC temperature controller;

4.3.10. Adopt flying over the FY-3C-N-370W vacuum pump.

4.4.1. Structure: SJ60*25 extruder

4.4.2. Main parameter:

a. L/D ratio 25:1

b. Screw diameter: Ф60 (BM screw specially for PBT plastic)

c. Barrel heating power: 4 segments, air cooling

d. Driven power: Z4 DC motor, 30kw

e. Extruder output: 100KG/H

With plastic dryer, you can set the baking temperature. With low level alarm function. The dryer has a transparent mirror to display the material level, and the low position detector detects and has an alarm light. It can automatically vacuum suction, reduce the labor intensity of workers, and set the automatic feeding interval according to the actual situation.

The controller installed on the main cabinet can be controlled separately or online, and controlled by the host to synchronize with the production speed.

4.7.1. The crosshead is an imitation imported square crosshead, which is customized by domestic professional manufacturers and equipped with built-in heaters. The extrusion core is a self-centering extruded tube type, and the mold sleeve can finely adjust the eccentricity. The movable joint is connected between the crosshead and the barrel.

4.7.2. The crosshead oil filling needle system consists of a needle tube mounting positioning bracket, an oil needle and a fiber needle. The needle tube positioning bracket ensures that the needle tube and the crosshead are concentric, and has a bidirectional adjustment centering function. The fiber needle is fixed on the linear guide of the bracket, which is smooth and reliable. It is not easy to break and deform.

4.8.1. Structural form: imported stainless steel structure with automatic water supply, overflow and temperature control device for cold water; the moving distance of the hot water tank is 400mm, the water tank is electrically heated, and the heating power is 6KW.

4.8.2. Water tank capacity: 0.2m3

4.8.3. Water trough length: 4m, moving distance 400mm

4.8.4. Water circulating speed: 1.8 m³/h

4.8.5. Temperature control range: room temperature - 80 ° C

The Panasonic 3KW AC servo control system and motor are driven by a turbo vortex reducer with a traction structure speed of 800m/min.

4.9.1. Structural form: stainless steel warm water tank, stainless steel traction wheel, spray cooling.

4.9.2. Temperature control range: room temperature ~ 80 ° C

4.9.3. Structural form: imported stainless steel structure with automatic water supply, overflow, circulation and temperature control.

4.9.4. Water tank capacity: 0.3m³

4.9.5. Water circulating flow: 1.8 m³/h

4.9.6. Water trough length: 4m

4.10.1. The production speed is faster than the traditional 12-meter water trough, the beam tube has better cooling effect, is easier to dry, and has lower additional tension. Imported stainless steel structure, stainless steel plate thickness 2mm. The weld is smooth and beautiful.

4.10.2. Structure: stainless steel warm water tank, stainless steel traction wheel, spray cooling

4.10.3. Refrigerator power: 3P, outlet temperature is 10 ~ 25 ° C (adjustable)

4.11.1. Structure feature: Swing rod type

4.11.2. Tension range: 3-10N

4.12.1. The frame is a cabinet structure; the Ф630 traction wheel is used; the tension of the air conditioning belt is up to 100N; the Panasonic 3KW AC servo control system and motor are driven by the turbine vortex reducer. The transmission mechanism consisting of motor and reducer provides traction power; aluminum alloy casing reducer; meter accurate; accuracy 0.2%, equipment running smoothly and reliably;

4.12.2. Traction force: 100N

4.12.3. Traction wheel diameter: 630 mm

4.12.4. Traction structure speed: 800m/min

The blower is installed at the outlet of the cold water tank and uses compressed air to quickly remove moisture from the surface of the tube. In order to reduce the noise, a box-type closed silencer structure is adopted, and two blow dryers are installed in the speaker. Synchronization of start, stop and traction of the blow dryer.

4.14.1. Measuring range: 1-10mm

4.14.2. Measuring accuracy: ±0.001m±0.02%

4.14.3. Resolution: 0.001mm

4.15.1. Swing rod structure is adopted, and the pulley and the fixed wheel adopt a multi-piece wheel set, and the tension is kept constant during the production process by the weight and position adjustment of the weight.

4.15.2. Tension range: 2.5-6.5N

4.15.3. Storage line length: 10m

4.15.4. Storage wheel diameter: Φ270mm

4.16.1. Take-up unit: Driven by 5.5KW AC variable frequency motor, frequency control.

4.16.2. Traverse unit: The Panasonic AC servo motor and controller system are used to drive the precision ball screw. The wire guide wheel moves on the linear guide to realize the traverse function. The traverse speed is always synchronized with the wire take up speed.

4.16.3. Bobbin changing mechanism: AC variable frequency motor and positioning guide rail are adopted, and the automatic speed regulation of the frequency converter ensures smooth and no impact and achieve accurate positioning.

4.16.4. Electronic control system: including Siemens PLCS7-300 and Danfoss inverter, etc. The human-machine interface adopts touch screen to realize simple and convenient operation. With start, manual quick release function. Production length, set length, etc. can be displayed on the take up touch screen.

4.16.5. The main technical parameters:

a. Loading specifications: PN800:  flange diameter 800mm, bobbin total width 600mm The inner diameter of the bobbin is 400mm, and the shaft hole is Φ80mm.

b. Take up speed (structural speed):  800m/min

c. Traverse pitch: 1.5-8mm continuously adjustable

d. Take up motor: 5.5KW AC motor and Danfoss inverter drive

e. Traverse motor: 0.75KW Panasonic AC servo motor

f. Movable motor: 370W AC motor + reducer

g. Max load capacity: 500kg

4.17.1. The whole machine is controlled by industrial computer, all process parameters and display points can be displayed on the electric control cabinet, which is beneficial to operation and maintenance.

4.17.2. It can centrally control the entire production line and facilitate linkage adjustment.

4.17.3. Main electrical control system features:

a. Full-line equipment can be linked to both synchronous control and stand-alone operation.

b. The temperature control part adopts Japanese RKC CH402 temperature controller, PID parameter setting, and power control adopts solid state relay.

c. Industrial computer adopts S7-300 Siemens series for industrial control products and PLC.

d. The AC servo uses Panasonic servo system.

e. Low-voltage electrical appliances, such as air-opening, the button uses Schneider products.

f. The main part can set and display the temperature production line of each zone of the extruder, the length of the meter on the bobbin, the length of the meter total, the diameter data of the online test, and the current of the extruder.

g. Fault alarm, such as: the temperature difference of the host area, the diameter difference of the beam tube.

h. Host Z4 DC drive uses UK imported Parker590 controller

i. Electrical cabinets use standard specification electrical cabinets, length * width * height (800 * 600 * 2000)

j. There are wire marks on the wiring in the cabinet, the marks are printed by machine