Roll To Roll Transfer Coating System With Drying Oven For Battery
Electrodes
Model:MR-SY300-3J
Transfer interval coating machine, the coating thickness is easy to
adjust, more accuracy, easy to operate. it can do both continuous
coating and interval coating.
Features
*Substrate tension control, stable tape travel, equipped with
deviation correction device;
*Hot-air oven, upper and lower double-sided blowing, high-quality
drying effect;
*Three-roll transfer coating, with a wider coating window;
*Comma squeegee measurement, with precision adjustment mechanism,
to obtain high coating precision;
*PLC control, touch screen operation, convenient and easy to use;
*Optional solvent recovery processing device;
Technical Parameters and Main Configuration of Machine
Main Configuration
| NO. | Name | Place of Origin |
| 1 | Air switch | Chint / Delixi (Domestic) |
| 2 | PLC | OMRON |
| 3 | Touch screen | Weinview |
| 4 | Modular | OMRON |
| 5 | Intermediate relay | Schneider |
| 6 | Servo motor | Mitsubishi |
| 7 | Planetary reducer | Feng Hua (Taiwan) |
| 8 | Circuit breaker | Delixi (Domestic) |
| 9 | AC contactor | Delixi (domestic) |
| 10 | Solid state relay | FOTEK (Taiwan) |
| 11 | Thermostat | Yatai (Domestic) |
| 12 | Automatic deviation correction | Ultrasonic |
| 13 | Full automatic tension | Variable frequency tension |
| 14 | Optical fiber electric eye | KEYENCE (Japan) |
| 15 | Push cylinder | Yadeke / Qilico |
| 16 | Deep groove ball bearing (Machine head) | NSK/NTN |
| 17 | Coating roller | Hard chromium plating |
| 18 | Back roller | Imported EPDM |
| 19 | Scraper | Hard chromium plating |
| 20 | Guide roller | Anodizing of aluminum alloy surface |
| 21 | Frequency converter | Yingweiteng |
| 22 | Fan | Xin fan |
Technical Parameters
| NO. | Project | Technical Parameter | Remarks |
| 1 | Apply | It is applicable to the coating process of positive and negative
electrode of LiFePO4,LiCoO2,LiMn2O4and other type batteries | |
| 2 | Operating substrate thickness | Aluminum foil(Al): 8-30um; Copper foil(Cu): 8-30um | |
| 3 | Design width of roll surface | 330 mm | |
| 4 | Guaranteed coating width | 100-300mm | |
| 5 | Coating Roller, Rubber Roller | Φ120mm | |
| 6 | Scraper Roller | Φ80mm | |
| 7 | Mechanical running speed | 7m/min | |
| 8 | Coating speed | ≤2m/min | It depends on the drying condition |
| 9 | Suitable slurry viscosity | 2000-12000 cps | |
| 10 | Single side coating dry thickness range | 20-200μm | |
| 11 | Minimum intermittent length | ≥5mm | Related to slurry characteristics |
| 12 | Minimum coating length of multiple sections | ≥20mm | Related to slurry characteristics |
| 13 | Solvent properties | Oily solvent NMP(s.g=1.033,b.p=204℃) | |
| Aqueous solvent H2O/NMP(s.g=1.000,b.p=100℃) | |
| 14 | Suitable solid content | Positive S.C. 60%±20% | |
Negative S.C. 50%±10% (PVDF system) S.C. 50%±5%(SBR system) | |
| 15 | Single side coating dry thickness error | Within ± 3um | |
| 16 | Coating method | Double layer front and back 3-stage unequal distance intermittent
transfer coating / second side automatic tracking / continuous
transfer coating | |
| 17 | Substrate running direction | Forward coating, substrate forward and reverse empty foil operation | |
| 18 | Overall dimensions | L8.5*W1.5*H2.3m | |
Structure Introduction of Each Part
Integral Unwinding, Head Mechanism
| NO. | Project | Technical Parameter | Remarks |
| 1 | Roller mounting structure | Rack installation mode | |
| 2 | Roller surface treatment | Surface oxidation of metal aluminum roller | |
| 3 | Tension control system | Closed loop automatic control, constant tension, tension range
0-50N | |
| 4 | Deviation correction method | Automatic EPC control, stroke 50mm | |
| 5 | Coiling mode | The material roll is fixed by 3-inch air expansion shaft | |
| Unwinding single shaft support | |
| 6 | Substrate running direction | Forward and reverse | |
| 7 | Substrate running speed | 5m/min | |
| 8 | Maximum unwinding diameter | Ф 280mm | |
| 9 | Maximum bearing capacity of inflatable shaft | 80Kg | |
| 10 | Number of unwinding inflatable shafts | Article 1 | |
| 11 | Main drive motor | Servo motor | |
| 12 | Intermittent push | Servo drive | |
| 13 | Roller surface treatment | Surface oxidation of metal aluminum roller, circular runout ≤ 30um | |
| 14 | Scraper structure | Double sided comma scraper, diameter Ø 80mm | |
| 15 | Scraper angle rotation control | Handle rotation | |
| 16 | Coating roller (Steel roller) | The surface is plated with hard chromium, with a diameter of Φ
120mm | |
| 17 | Back roller (Rubber roller) | Φ 120mm in diameter, imported EPDM for surface bread | |
| 18 | Trough mixing | The rodless cylinder moves in a straight line and the speed is
adjustable | |
| 19 | Intermittent height adjustment of scraper | Manual adjustment | |
| 20 | Stand alone head position | Installation and operation before drying channel | |
Drying Channel
| NO. | Project | Technical Parameter | Remarks |
| 1 | Oven structure | Double layer independent heating, arranged up and down | |
| 2 | Oven length | 1m/ Section, total 3 sections, 3-stage temperature independent
control | |
| 3 | Material | SUS304 stainless steel | |
| 4 | Driving mode of oven guide roller | Passive idler drive | |
| 5 | Temperature control | It is divided into protection control of normal working temperature
control and overtemperature monitoring alarm. In case of
overtemperature, audible and visual alarm will appear and the main
heating power supply will be cut off; Each section is completely
controlled independently. | |
| 6 | Heating way | Electric heating, hot air circulation structure | |
| 7 | Heating power of single section oven | 6KW/1m | |
| 8 | Temperature in drying channel | Design Max 150 ℃, temperature difference in single section oven ≤ 5
℃ | |
| 9 | Box surface temperature during operation | ≤45℃ | |
| 10 | Blowing mode | Upper and lower air blowing, and the upper and lower air volume are
controlled respectively through valves; The upper and lower air
chambers share the heating body | |
| 11 | Exhaust volume control of each section | Air volume of circulating fan 3000m³/h (single section) Exhaust air volume 4000m³/h | |
| 12 | Air nozzle structure | The blowing direction is 30°from the horizontal, and the air nozzle
slot is slotted with a special die | |
| 13 | Heating control | Solid state relay | |
| 14 | Fan material | SUS304 stainless steel | |
| 15 | Solvent recovery system | Optional | |
Winding Mechanism:
The function is the same as that of unwinding, with the following
additions:
| NO. | Project | Technical Parameter | Remarks |
| 1 | Tension | One set is installed in front of the traction roller, with
closed-loop automatic control, constant tension, tension range of 0
~ 50N, servo control. | |
| 2 | Installation structure | Square frame welding | |
| 3 | Number of windup inflatable shafts | Article 1 | Single arm winding |
Control System
| NO. | Project | Technical Parameter | Remarks |
| 1 | Main control system | Touch screen, PLC, module, servo system | |
| 2 | Operation mode | Manual, automatic and emergency stop; The whole machine can be
operated before and after. | |
| 3 | Setting range of coating and intermittent length | Coating length: 20.0-3200.0mm Intermittent length: 5.0-3200.0mm | |
| 4 | Alarm condition | In case of equipment failure, the touch screen will display the
corresponding correction screen | |
| 5 | Counting function | Production quantity / length | |
| 6 | Head and tail thickness adjustment mode | The speed ratio of steel roller and rubber roller is controlled by
program | |
Dimensions and weight of Coating Equipment:
Dimension: L6000*W1200*H1800mm
Weight: about 2T
Machine Accuracy
Hardware Accuracy
| NO. | Project | Technical Parameter | Remarks |
| 1 | Scraper | Circular jump ≤ 1.5um, Ra0 4, Straightness ≤ 1.5um | |
| 2 | Coating roller (Steel roller) | Circular runout ≤ 1.5um, Ra0 4, Straightness ≤ 1.5um | |
| 3 | Rubber roller | Circular runout ≤ 10um, straightness ≤ 10um | |
| 4 | Deviation correction | ±0.5mm | |
| 5 | Tool adjustment control repetition accuracy | ±0.1um | |
| 6 | Temperature control accuracy | ±2℃ | |
Installation Environment Requirements
1) The ambient temperature of the machine head is 25~30°C, and the
rest is 10~40°C;
2) The relative humidity of the machine head is RH ≤ 35%, the
negative electrode RH ≤ 98%, and the rest ≤ 98%;
Supporting facilities
1) Power supply: 3-phase 380V, 50HZ, voltage fluctuation range:
+8%~–8%; total power supply starting power 30KW;
2) Compressed air: after drying, filtering and stabilizing: the
outlet pressure is more than 5.0kg/cm2;
