Automatic Roll To Roll Transfer Coating Machine With Intermittent And Continuous Coating Mode

1. Main parameters

No.	Item name	Spec
1	Fit system	Coating process for positive and negative plates of lithium iron phosphate, lithium cobalt oxide and lithium manganese oxide
2	Operating substrate thickness	Aluminum foil: 10-30um Copper foil: 7-30um
3	Design width of roll surface	380 mm
4	Ensure coating width	100~300mm
5	Running speed of equipment and machinery	7m/min
6	Equipment coating speed	Less than 2m / min depends on the drying condition
7	Suitable for slurry viscosity	2000~16000 Cps
8	Single side coating dry thickness range	50-200μm
9	Minimum interval length	≥ 5mm (related to slurry properties)
10	Minimum coating length of multi section	≥ 20 mm (related to slurry properties)
11	Solvent properties	Oily solvent NMP (s.g=1.033, b.p=204℃)
		Aqueous solvent H2O/NMP(s.g=1.000, b.p=100℃)
12	Suitable solid content	Positive S. C. 60%±20%
		Negative S. C. 50%±10% (PVDF system) S. C. 50%±5% (SBR system)
13	Single side coating dry thickness error	±3um
14	Coating method	Double-layer front and back 3-stage unequal interval intermittent transfer coating / second side automatic tracking / continuous transfer coating
15	Substrate running direction	Forward coating, substrate forward and reverse empty foil operation
16	Equipment dimensions	Length, width and height: 8.5*1.5*2.3m

2. Introduction to the structure of each part

2.1. Integral unwinding, head mechanism:

No.	Item name	Spec
1	Roller installation structure	Rack installation
2	Roll surface treatment	Surface oxidation of metal aluminum roller
3	Tension control system	Closed loop automatic control constant tension, tension range 0~50N
4	Correction method	Automatic EPC control, stroke 80mm
5	Coiling method	The material roll is fixed by a 3-inch air shaft; the unwinding is supported by a single shaft
6	Direction of substrate movement	Forward and reverse
7	Base material running speed	5m/min
8	Maximum unwinding diameter	Ф300mm
9	Maximum bearing capacity of inflatable shaft	100Kg
10	Number of unwinding inflatable shafts	1 piece
11	Main drive motor	servo motor
12	Intermittent push	Servo drive
13	Roller surface treatment	The surface of the metal aluminum roller is oxidized, and the circle runout ≤30um
14	Scraper structure	Double-sided comma scraper, diameter Ø80mm;
15	Scraper angle rotation control	Move the handle to rotate
16	Coating roller (steel roller)	Hard chrome plated on the surface, diameter Ø120mm;
17	Back roller (rubber roller)	Diameter Ø120mm, surface covered with imported EPDM glue
18	Trough mixing	Rodless cylinder moves linearly, speed is adjustable
19	Intermittent height adjustment of scraper	Manual adjustment.
20	Single head position	Installation and operation before drying tunnel

 

2.2. Drying oven

No.	Item name	Spec
1	Oven structure	Double heating, arranged up and down
2	Oven length	6 meters (3 meters/section*2)
3	Material	SUS304 stainless steel, inner tank 1.0mm, outer tank 1.2mm
4	Oven guide roller transmission mode	Passive roller drive
5	temperature control	It is divided into the protection control of normal working temperature control and over-temperature monitoring and alarm. When over-temperature, an audible and visual alarm will appear, and the main heating power will be cut off; each section is completely controlled independently
6	Heating method	Electric heating, hot air circulation structure
7	Heating power of single section oven	13.5KW/3m
8	Temperature in the drying tunnel	Max. 150℃, temperature difference in single oven ≤5℃
9	Surface temperature of cabinet during operation	≤45℃
10	Blowing method	The upper and lower air blows, and the upper and lower air volumes are separately controlled by valves; the upper and lower air chambers share the heating body
11	Each section of exhaust air volume control	Air volume of circulating fan: 3000m3 / h (single section) The exhaust air volume is 4000 m3 / h
12	Nozzle structure	The blowing direction is 30 degrees to the horizontal, and the slot of the air nozzle is slotted with a special mold
13	Heating control	Solid state relay
14	Fan material	SUS304 stainless steel
15	Solvent recovery system	Optional
16	NMP solvent concentration alarm	Optional(add $4390)

 

2.3. Winding mechanism: the function is the same as that of unwinding, the following are added

No.	Item name	Spec
1	Tension	1 set is installed in front of the traction roller, closed loop automatic control constant tension, tension range 0~50N, servo control.
2	Installation structure	Fangtong frame welding
3	Number of winding shafts	1 piece, single-arm winding

 

2.4. Control system

No.	Item name	Spec
1	Main control system	Touch screen, PLC, module, servo system
2	Operation mode	Manual, automatic, emergency stop; the whole machine can be operated before and after
3	Coating, intermittent length setting range	Coating length 20.0～3200.0mm Intermittent length 5.0～3200.0mm
4	Alarm situation	When the device fails, the touch screen will display the corresponding correction screen
5	Counting function	Production quantity/length
6	Head and tail thickness adjustment method	The program controls the speed ratio of steel roller and rubber roller;

 

3. Equipment accuracy:

3.1. Hardware accuracy

No.	Item name	Spec
1	Scraper	Circle runout≤1.5um, Ra0.4, straightness≤1.5um
2	Coating roller (steel roller)	Circle runout≤1.5um, Ra0.4 Straightness≤1.5um
3	glue roll	Circle runout≤10um, straightness≤10um
4	Correction deviation	±0.1mm
5	Knife adjustment control repeat accuracy	±0.1um
6	Temperature control accuracy	±2℃

 

3.2. Coating accuracy

	A (tailing)	≤1mm (Related to slurry viscosity and adhesive properties)
	B (abnormal area of the head)	10mm
	C (abnormal area of tail)	6mm
	D (edge effect area)	≤3mm
	E (length error)	±0.5mm
	F (width error)	±0.5mm
	M (width error)	±0.5mm
	G1 (head thickness)	-10~+8um
	G2 (Tail thickness)	-10~+8um
	H (blank error)	±0.5mm
	I (positive and negative bit error)	±0.5mm
	L1 (coating film length)	20.0～3200.0mm
Length range	L2 (intermittent length)	5.0～3200.0mm
	L1/L2(coating+discontinuous length)	L1 +L2 ≥90mm

4. Installation environment requirements

4.1. The ambient temperature of the machine head is 20~30℃, and the rest is 10~40℃;

4.2. The relative humidity of the machine head, positive RH ≤35%, negative RH ≤98%, and the rest ≤98%;

 

5. Supporting facilities

5.1. Power supply: 3PH 380V, 50HZ, voltage fluctuation range: +8%～-8%; the total starting power of the power supply is 40KW;

5.2. Compressed air: After drying, filtering and stabilizing: the outlet pressure is greater than 5.0kg/cm2;