TMAXCN Brand Double Sides Slot Die Coating Machine

• Customization: Available
• Warranty: 1 Year
• Automatic Grade: Automatic
• Model NO.: TMAX-ZL-J750-40
• Trademark: TMAX
• Origin: China

Product Description

Double Sides Slot Die Coating Machine

 

I. Brief introduction of coater structure
1. Unwinding mechanism
2. Coating mechanism (2 sets)
3. Oven mechanism (double-layer 40m)
4. Traction mechanism (2 sets)
5. Winding mechanism
6. Control system
 
Overall size and weight of coating equipment:
size: length 55000mm * width 4000mm (excluding maintenance space) * height 4000mm
Weight: About 40T
 
Function overview:
ZL-J series coating machine is a professional lithium battery electrode coating equipment.
it is applicable to the coating process of oily or aqueous lithium iron phosphate, oily lithium cobalt oxide, ternary, lithium manganate, nickel cobalt lithium manganate, oily or aqueous negative carbon graphite, lithium titanate and other slurry systems;
using the full-automatic PID closed-loop tension control system, the tension control accuracy can reach the level of ± 1n;
imported standard parts such as Siemens PLC control system and high-precision servo motor are used to ensure the ultra-high consistency and stability of coating products in terms of surface density and size. The proportion of imported standard parts in the standard parts of the whole machine is as high as 85%.
with the characteristics of high-speed coating, high precision and high consistency, it is the preferred coating equipment for power batteries.
 
II.  Technical parameters and main configuration of equipment
(A)Main configuration of equipment:

No.	Name	Place of Origin
1	Air switch	S chneider (France)
2	PLC	Siemens (Germany)
3	Touch screen	Siemens (Germany)
4	Modular	Siemens (Germany)
5	Intermediate relay	S chneider (France)
6	servo motor	Siemens (Germany)
7	Direct drive servo motor (DDR)	Rexroth (Germany)
8	Feeding pressure detection	Bd.sensors/valcom (Germany / Japan)
9	Precision metering pump	Heishin (Japan)
10	Low friction cylinder	Tengcang (Japan)
11	Planetary reducer	Newcastle (Germany)
12	Circuit breaker	S chneider (France)
13	AC contactor	S chneider (France)
14	Solid state relay	Xinda (Taiwan)
15	Thermal protection	S chneider (France)
16	Thermostat	Omron (Japan)
17	Automatic deviation correction	Aibo (domestic)
18	Full automatic tension	PID closed loop control (self-made)
19	Main discharging (receiving) motor	Siemens (Germany)
20	Optical fiber electric eye	KEYENCE (Japan)
21	Deep groove ball bearing (machine head)	NSK (Japan)
22	Coating roller	Hard chromium plating (self-made)
23	Guide roller	Φ 118 aluminum alloy surface anodized, finish rc0.4 (domestic)
24	Frequency converter	Rexroth (Germany)
25	Knife adjusting grating ruler	Keens (Japan)
26	Fan (stainless steel)	Hongjian (domestic)
27	Extrusion head	Mitsubishi
28	Digital pressure gauge	Bode (Sweden)
29	Pneumatic components	SMC (Japan)

 

(B)Vulnerable parts:
No.	Name	Brand	Quantity	Stock time	Remarks
1	Steel roller	self-control	1 piece /2 sets	30 days	Imported chrome plating materials
2	Steel roller bearing	NSK/NTN	2 /1 set	15 days	According to the procurement cycle
3	Heating tube	domestic	3 pieces / set	1 day
4	Thermocouple	domestic	1 piece / set	1 day	Adapt to the longest drying path
5	inner hexagon spanner	domestic	1 set / set	1 day
6	Adjustable wrench	domestic	1 piece / set	1 day
7	Valve body sealing ring	domestic	1 set / unit	1 day
8	Torque wrench	Japan	1 set / unit	15 days
9	Die head lifting truck	domestic	1 set / unit	15 days
10	Marble platform	domestic	1 set / unit	10 days
11	Feeding pipe	domestic	12m / set	1 day
12	Pole sampler	domestic	1 / set	2 days
13	Shim	TMAX	3 sets / unit	15 days

(C)Automatic feeding system:A set of automatic feeding system (60L) is standard.
(D)Appearance color: Except for the stainless steel part, the color of the box conforms to the standard color card provided by the demander.
(E)Device functions:

No.	Project	Technical parameter	Notes
1	Suitable system	Oily or aqueous lithium iron phosphate, lithium cobalt oxide, lithium manganate, ternary, nickel cobalt lithium manganate, lithium titanate, carbon graphite, etc
2	Operating substrate parameters	Aluminum foil (Cu): thickness 9 ~ 25um; Width 300 ~ 720mm; Roll diameter max.500mm; Weight max.500kg;
		Copper foil (Cu): thickness 4.5 ~ 30um; Width 300 ~ 720mm; Roll diameter max.500mm; Weight max.500kg;	Either single side light or double side light
3	Design width of roll surface	750 mm
4	Guaranteed coating width	200~680mm
5	Equipment mechanical running speed	40m/min
6	Equipment coating speed	1-32/min;	It depends on the drying condition
7	Suitable for slurry viscosity	2000~16000 Cps(Positive pole) 1000~16000 Cps(Negative pole)
8	Single side coating dry thickness range	40~200g/m2
9	Minimum intermittent length	Coating speed < 5mm within 15m/min; Coating speed above 25m/min < 8mm;
10	Minimum coating length of multiple sections	50mm	Coating speed≤12m/min
11	Solvent properties	Oily solvent NMP(s.g=1.033,b.p=204ºC)
		Aqueous solvent H2O/NMP(s.g=1.000,b.p=100ºC)
12	Suitable solid content	Positive electrode S.C. 60%±20%
		Negative pole  S.C. 50%±15%(PVDF system) S.C. 50%±10%(SBR system)
13	Proportion	Positive electrode  1.5-2.59/cm2 Negative pole  1~1.89/cm2
14	Coating method	Double layer front and back 3-stage unequal interval coating / second side automatic tracking / continuous coating / field lattice coating
15	Roll change mode	Manual
16	Substrate running direction	Forward coating, substrate forward and reverse empty foil operation

 

(F)Structure introduction of each part:
1, Unwinding mechanism (double arm double support manual rewinding):

 

No.	project	Technical parameter	Notes
1	Roller installation structure	CNC processing integral vertical plate installation (thickness 30mm).
2	Roller surface treatment	Surface oxidation treatment of metal aluminum roller, surface hardness HRC65; Over roll circular runout ≤ 20 μ m; Surface roughness Ra0.2; Parallelism ≤ 0.1mm;
3	Tension control system	Double closed loop speed control mode: 1. Swing roll PID synchronous control 2. Servo motor adjusts tension in closed loop. Tension display table shows tension value 3. The adjustable tension range is 0--300n, and tension fluctuation ≤± 1.5%
4	Correction method	Automatic EPC control, stroke 120mm
5	Coiling method	Uncoiling up and down
		The roll is fixed with a 3-inch inflatable shaft
		Unwinding double air expansion shaft, double-sided support
		Manual belt receiving platform, double pressure bar mode
6	Substrate running direction	Forward and reverse
7	Substrate running speed	50m/min
8	Maximum unwinding diameter	Ф500mm
9	Maximum bearing capacity of inflatable shaft	600Kg
10	Number of unwinding inflatable shafts	2 articles
11	Control system	Set the function operation button to complete the operations such as tape connection, pause, emergency stop, forward and reverse rotation, left and right alignment, etc
12	Unwinding speed	The unwinding speed is controlled by PLC according to the set coating speed and real-time tension change data; The unwinding power is provided by AC motor + turbine reducer;

 

1. Head structure (one coat, two coats):

 

No.	Project	Technical parameter	Notes
1	Installation structure mode	CNC processing thickness of 70 mm integral vertical plate structure, the overall weight of 2.6 tons, increase the ground bearing iron plate, reduce the ground bearing area.
2	Main drive motor	Servo motor
3	Rubber roller structure	To prevent the tension instability caused by the non separation of tension and ensure the stability of the coating surface density.
4	Distance adjustment between die head and coating roller	The servo motor cooperates with the high-precision absolute displacement sensor for closed-loop tracking control. The distance is set through the screen, 1~5000um, the adjustment resolution is 0.1um, and the repeated positioning accuracy is ≤± 0.3um.
5	Die head selection	The die lip of Mitsubishi special extrusion head is made of high wear-resistant and corrosion-resistant cemented carbide steel, and the surface is treated with tungsten carbide or chromium nitride. The straightness and flatness are ≤ 1.5 µ M
6	Die cavity structure	The multi pressure cavity slit (spray) coating head is adopted, which has strong process adaptability and helps to balance the transverse pressure, so as to make the transverse coating thickness consistent; The upper die of the coating head is designed with a deflection adjusting mechanism, which can adjust the parallelism of the upper and lower die lips
7	Pressure monitoring system	Feed pressure monitoring, reflux pressure monitoring, die cavity pressure monitoring; It can monitor the feeding process in real time, and give an alarm when there is blockage, with an accuracy of ≤ 0.001mpa
8	Feeding system	Japanese bingshen precision screw pump (2nbl15f (sus+epdm) pump) + precision servo motor, an effective 60L turnover bucket (material container), and has the functions of liquid level detection and liquid level mixing to prevent the sedimentation and overflow of slurry.
9	Coating intermittent function	Servo intermittent control valve system is adopted to ensure the stability of coating size.
10	Head and tail thinning function	The servo intermittent control valve system can adjust the head and tail thinning time and the stroke of the intermittent valve switch to adjust the head and tail thickness in real time.
11	Die head horizontal adjustment function	Adopt precise linear guide rail guidance and manual horizontal adjustment mode, so that the die head can be slightly adjusted ± 10mm in the horizontal position; Ensure the vertical alignment accuracy of the front and back sides
12	Matching and assembly of the upper part of the die head and the lower part of the die head	The digital torque wrench is used to ensure the assembly consistency and accuracy of the die head.
13	Roller surface treatment	Surface oxidation treatment of metal aluminum roller, surface hardness HRC65; Over roll circular runout ≤ 20 μ m; Surface roughness Ra0.2; Parallelism ≤ 0.1mm;
14	Coating roll (steel roll)	The surface is plated with imported hard chromium, with a diameter of Φ 295mm;
15	Tension	Full automatic PID closed-loop control constant tension, tension range 1 range 0~50n, tension control accuracy ± 1n
16	Stand alone head position	Installation and operation before drying
17	Laser alignment function	The laser alignment function is used to manually judge the alignment degree.

 

1. Drying channel (suspension oven)

 

No.	Project	technical parameter	Remark
1	Oven structure	The first four sections are the main transmission ship structure, and the last six sections are the suspension oven structure.
2	Oven length	40 meters (4 meters / section, 10 sections in total)
3	Texture of material	Stainless steel, inner tank national standard SUS304, outer tank national standard SUS201
4	Driving mode of oven guide roller	The first four sections are the main transmission structure, and the last six sections are the suspension oven
5	temperature control	It is divided into the protection control of normal working temperature control and overtemperature monitoring alarm. In case of overtemperature, an 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	Single section 24kw/4m (maximum starting power)
8	Temperature in drying channel	Design Max150 ºC, temperature difference in the area of single section oven ≤ 5 ºC
9	Box surface temperature during operation	≤45ºC; The cotton filling thickness is 100mm;
10	Blowing mode	Upper and lower air blowing, upper and lower air volume can be controlled respectively through valves, which can be fine tuned; The upper and lower air chambers share the heating body
11	Exhaust volume control of each section	Independent control and fine adjustment through mechanical valve
12	Air nozzle structure	The blowing direction of the first four sections is 30 degrees from the horizontal, and the air nozzle groove is slotted with a special mold. The last five sections are adjustable air nozzle hooks.
13	Fan control	AC contactor control
14	Heating control	Solid state relay
15	Fan material	National standard SUS304 stainless steel
16	Solvent recovery system	No, only assist in the installation of interfaces
17	NMP solvent concentration alarm	Provide installation interface. (to be quoted separately)
18	Air chamber pressure monitoring	None (this function needs to be quoted separately)
19	Exhaust air volume	35000 m3 / h max

 

1. Traction mechanism: (2 sets)

 

No.	Project	technical parameter	Notes
1	Marching correction	Installed at the outlet of drying channel, automatic EPC control, swing ± 15 degrees, photoelectric sensor
2	Tension	Double closed loop speed control mode: 1. Swing roll PID synchronous control 2. Servo motor adjusts tension in closed loop. Tension display table shows tension value 3. The adjustable tension range is 0--300n, and tension fluctuation ≤± 1.5%
		Tension partition is realized by pinch roll and traction roll
3	Installation structure mode	Installation of integral vertical plate of CNC machining center (thickness 30mm)
4	Traction roller	160mm steel roller
5	Pinch roll	Ø 120mm rubber roller, surface bread EPDM
6	Drive motor	The traction roller is driven by Siemens Servo motor + precision reducer

 

1. Rewinding mechanism (disc type double shaft automatic rewinding):

 

No.	Project	technical parameter	Notes
	Installation structure mode	Installation of integral vertical plate of CNC machining center (thickness 30mm)
	tension	Double closed loop speed control mode: 1. Swing roll PID synchronous control 2. Servo motor adjusts tension in closed loop. Tension display table shows tension value 3. The adjustable tension range is 0--300n, and tension fluctuation ≤± 1.5%
	Rectify deviation	Automatic EPC control, stroke 120mm
	Maximum winding diameter	Ø800
	Winder inflatable shaft	Article 2 (national standard)
	Winding motor	The winding power is driven by Siemens Servo motor + precision reducer
	Max capacity	600Kg
	Roll change mode	Automatic winding and changing function without shutdown

 

1. Control system:

No.	Project	technical parameter	Notes
1	Master 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
		The coating line speed, coating setting, head and tail thinning setting, fan frequency and temperature setting can be set, displayed and recorded through the touch screen
3	Setting range of coating and intermittent length	Coating length 20.0 ~ 3200.0mm
4	Alarm condition	Intermittent length: 5.0 ~ 3200.0mm
5	Counting function	When the equipment fails, the touch screen will display the corresponding correction screen
6	Head and tail thickness adjustment method	Production quantity / length

III,  Equipment accuracy
1,Hardware accuracy

No.	Project	technical parameter	Notes
1	Coating roll (steel roll)	Circular runout ≤ 1.0 um, Ra0.4 straightness ≤ 1.5um
2	Deviation correction	±1mm
3	Aluminum roller	Circular runout ≤ 20um, straightness ≤ 20um
4	Tool adjustment control repetition accuracy	±0.1um
5	Temperature control accuracy	±0.5ºC

 
2,Coating accuracy

Item	Sign	Parameters (30m/min)
	A (trailing)	≤ 1mm (related to slurry viscosity and binder characteristics)
	B (abnormal head area)	5mm
	C (tail abnormal area)	6mm
	D (edge effect area)	≤3mm; Thickness -10 um
	E (length error)	±0.5mm
	F (width error)	±0.5mm
	M (width error)	±0.5mm
	G1 (head thickness)	-5~+5um
	G2 (tail thickness)	-5~+5um
	H (blank error)	±0.5mm
	I (positive and negative alignment error)	±0.5mm
	J single surface density (remove areas B, C and D)	Within 1.2%
Length range	L1 (film length)	20.0~3200.0mm
	L2 (intermittent length)	5.0~3200.0mm
	L1 /l2 (coating + intermittent length)	L1 +L2 ≥120mm

3,Measuring method 
A. Measuring area: 3mm at the edge, 5mm at the end and 5mm at the beginning.
B. Measure dimensions Φ 40mm or according to the process requirements of the demander 
 
IV,   Installation and use environment
1) The ambient temperature of the machine head is 20~30 ºC, and the rest is 10~40 ºC;
2) Relative humidity of the machine head: positive RH ≤ 35%, negative RH ≤ 98%, and the rest ≤ 98%;  
 
V,   Supporting facilities
1) Power supply: 3Ph 380V, 50Hz, voltage fluctuation range: +8% - 8%; The total starting power of the power supply is 280KW;
2) Compressed air: after drying, filtering and stabilizing, the outlet pressure is greater than 5.0kg/cm2;   
                      
 VI , Device orientation (optional)

Attached table: detailed list of equipment pre acceptance and formal acceptance inspection items (inspection results are attached with acceptance report)

No.	Inspection items	Inspection standard	Inspection method
	Device configuration parameters	Overall dimension of equipment: L (56000mm) *W(4000mm) *H (4000mm)	Tape measure
		Oven length: (4m/ section) × 4) + (4m/ section × 6 sections) =40m	ruler
		Maximum winding diameter of winding and unwinding: φ 600mm	ruler
		Roll width: 750mm
	Integrity of equipment function composition	Unwinding part (manual roll change function, tension, deviation correction, inflatable shaft)	Visually check the technical agreement and equipment configuration table
		Coating part (base, coating roller, feeding system, domestic manest die)
		Oven (circulator, heating system, external auxiliary air duct)
		Traction part (travel deviation correction, traction tension, traction roller assembly)
		Winding part (manual roll change function, tension, deviation correction, inflatable shaft)
		Control system (electrical cabinet, internal wiring, external trunking wiring)
		Delivery parts (according to the content of the technical agreement)
	Brand confirmation of standard parts	100% according to the brand of purchased parts specified in the technical agreement
	Safety standards	Mechanical and electrical interlocking, self-locking function, induction protection function;	Visual inspection and operation
		Alarm bell prompt in each area before equipment startup;	Operation
		Safety warning signs shall be set at dangerous parts such as movement, compression, cut-off and heat source;	visual
		Emergency stop switch button, safety rope in internal maintenance area (at least 3 places);	visual
		Protective covers for transmission and moving parts;	visual
		Oven overtemperature alarm and power-off protection function	operation
	Mechanical accuracy test	Coating roll circular runout ≤ 1.0 μ m; Straightness ≤ 1.5 μ m; Surface roughness Ra0.4,	Dial indicator, special inspection tool
		Over roll circular runout ≤ 20 μ m; Surface roughness Ra0.2	Dial indicator
		Parallelism of roller passing ≤ 0.1mm (except for roller passing of oven)	Dial indicator, special inspection tool
	Empty belt operation (operate the base material continuously at a speed of 40m/min for about 500m)	1m/min→10m/min→30m/min Sectional sampling	Tachometer
		No wrinkling in the whole area and no scratch on the surface of the substrate	visual
		All moving parts operate smoothly without abnormal noise; The transmission belt is free of deviation and wear;	visual
		Temperature setting of each section of the oven: normal temperature ~ 150 ºC	Operation and visual inspection
		The winding, unwinding and traction deviation correction run smoothly without continuous shaking	Operation and visual inspection
		Except for deviation correction and oven, the deviation of the base material of each roller is ≤± 1mm; Deviation of coating roll substrate ≤ 0.5mm	calipers
		Tension setting value 5 ~ 300N	Operation and visual inspection
		When starting and stopping, the tension fluctuation is ± 5N; Tension fluctuation ± 1n during normal operation;	Operation and visual inspection
	Coating inspection 30m/min coating operation 1200m)	The coating speed is 30m/min, and the coating method can realize continuous and intermittent coating	Parameter setting
		The feeding system and pipeline are well sealed without material leakage	visual
		The appearance of the coated surface is good, without particles, scratches, exposed foil and poor bulge edge	visual
		Density accuracy of one side: weight error ≤± 1.2% (excluding the range of 8mm at the edge)	Micrometer electronic scale
		Density accuracy of double-sided surface: weight error ≤± 1.5% (excluding the range of 8mm at the edge)	Micrometer electronic scale
		Tailing ≤ 1mm (related to slurry viscosity and binder characteristics)	ruler
		Head abnormal area ≤ 8mm	Ruler, micrometer
		Tail abnormal area ≤ 6mm	Ruler, micrometer
		Edge effect area ≤ 3mm, -10 ~ +5um (slurry viscosity change less than ± 300cps)	Ruler, micrometer
		Length error /h blank error: ≤± 0.5mm	ruler
		Width error: ≤± 0.5mm	ruler
		Thickness of head and tail: -5 ~ +5um	Micrometer
		Positive and negative horizontal alignment error: ≤± 0.5mm	Needle, ruler
		Longitudinal alignment error of front and back sides: ≤± 0.5mm	Needle, ruler
		Temperature control accuracy of single section oven: ≤± 1 ºC	visual
		In the horizontal area 10mm above the substrate, the temperature deviation of each point of a single section oven: ≤± 3 ºC	thermodetector
		Dryness test, solvent residue: ≤ 1% (constant temperature and humidity space sampling measurement)	Micrometer electronic scale
		Equipment utilization rate: ≥ 97% (formal acceptance project)	Operation and test
		Product qualification rate: ≥ 98% (formal acceptance project)	Operation and test