High Precision Rolling Press Machine For Lithium Battery Electrode Pole Production
1、List of equipment specifications
No.
Equipment name
Equipment model
Remarks
1
High Precision Lithium Battery Rolling Press Machine
LITH-YK-800*750-L
The effective rolling width is 200~680mm.
1.1 Equipment composition and function
Main configuration of equipment
No.
Name
Place of Origin
1.
Air switch
Schneider (France)
2.
PLC
Siemens (Germany)
3.
Touch screen
Smet (Taiwan)
4
Modular
Siemens (Germany)
5.
Intermediate relay
Schneider (France)
6.
Drive servo motor
Siemens (Germany)
7
Reducer
International Trade (China)
8.
Memorial Gateway
Shaogang (China)
9.
Bearing
Wafangdian (China)
10.
Coupling
Zhengtong (China)
11
Hydraulic ram cylinder
Siemark (Germany)
12.
Full automatic tension
PID closed loop control (self-made)
13.
Deep groove ball bearing (machine head)
NSK (Japan)
14.
Frequency converter
Rexroth (China)
15.
Rectify deviation
Dongdeng (Guangzhou)
2、Introduction to equipment principle
The traction of electrodeis compacted to the predetermined thickness or the predetermined compaction density by the double action of pressure and the nip of the pressure roller, so that the lithium battery produced by the rolled pole piece can achieve the designed / predetermined volume energy density and battery performance.
No.
Project
Describe
Note
1
Suitable system
Continuous rolling process for positive and negative plates of lithium iron phosphate, lithium cobalt oxide, lithium manganate, lithium nickel cobalt manganese and other battery systems.
The two rollers are rolled up and down horizontally, and the drive is located on the right side of the feeding end.
5
Equipment speed
Provided by constant pressure pump station, it is suitable for positive high pressure rolling and negative low pressure adjustment.
6
control mode
Stepless adjustment, and the linear speed of the upper and lower rollers is equal.
3、Equipment action sequence
Technological process of counter roll (pole rolling)
4. Equipment composition and functional
Equipment component configuration
4.1 unwinding system (as shown in Figure 1)
Figure 1
No.
Project
Describe
Note
1
Discharging part
φ 76mmx750mm inflatable shaft unwinding, equipped with air gun
2
Receiving platform
Pneumatic lifting of steel plate front receiving platform and pressing plate
3
tension control
Swing roll type, low friction cylinder controls the tension, and the sensor detects and displays the tension
4
Deviation correction system
Photoelectric deviation correction and linear guide rail (the maximum moving range is 100mm)
5
Rectification execution
Dongdeng deviation correction actuator
6
Sub control system
The discharging and receiving end is equipped with equipment sub control system and emergency stop (dynamic brake), pause and other buttons
7
Iron removal before rolling
Electromagnetic pole piece iron removal device, magnetic force of magnetic rod 10000~12000 Gauss
4.2 Trimming system before pole rolling (as shown in Figure 2)
Figure 2
No.
Item
Describe
Remarks
1
Knife feeding requirements
Pneumatic slitting blade (HRC ≥ 58).
2
Cutting requirements
¢ 150*50 bottom knife.
3
Trimming speed
It can automatically match the rolling mill running line speed (i.e. synchronization, response time ≤ 10ms), and
4
Scrap recycling
Can be adjusted separately; There is no material dropping and broken belt at the cutting edge.
5
Trimming width
Automatic collection, equipped with receiving box.
4.3Dust removal system before pole pressing (as shown in Figure 3)
Figure 3
No.
Item
Describe
Remarks
1
Vacuum suction
Reserve the interface of industrial vacuum cleaner.
2
Brush cleaning
The pneumatic lifting upper box is in contact with the rolling brush mode. The dust on the material belt is cleaned by the brush, and the dust is sucked away by the vacuum cleaner.
3
Iron removal before rolling
Electromagnetic iron removal device before pole rolling, with magnetic force of 10000 ~ 12000 Gauss. The magnetic rod is placed in the stainless steel tube and is easy to be loaded and unloaded, and it is easy to remove the adsorbed iron.
4.4.1Constant pressure high-precision battery pole piece rolling mill (as shown in Figure 4)
Figure 4
No.
Project
Description
Note
1
Roll installation
The two rollers are arranged horizontally up and down, with an integral archway.
2
dynamic system
Dual motor torque dual output structure.
3
Roll shafting
Bearing clearance setting device, with oil lubrication device.
4
Pole piece roller
High alloy forged steel, double medium frequency induction quenching, electroslag remelting process.
9Cr3mo
5
Running speed
0~30m/min, digital setting, stepless speed change, variable frequency speed control CNC system.
6
working pressure
Two hydraulic stations are used for pressurization.
Online voltage regulation
7
Roll gap adjustment
0-2mm digital setting, automatic gap adjustment.
The minimum unit of adjustment is 0.001mm
8
Roll cleaning
Automatic roller wiping
9
Safety protection
Stainless steel feeding hand guard is adopted. Equipped with emergency stop and pause.
4.4.2 automatic roller wiping device (only negative pole, as shown in Figure 5)
Figure 5
Function Description: the non-woven fabric is wiped on the roll by moving, and the upper and lower rolls are wiped at the same time; Roller wiping speed can be adjusted; The pressure of non-woven fabric on the roll is adjustable.
4.5 Constant tension closed-loop winding system (as shown in Figure 6)
Figure 6
No.
Project
Describe
Note
1
Receiving part
φ 76mmx750mm inflatable shaft unwinding, lock valve design, equipped with air gun
2
Receiving platform
Pneumatic lifting of steel plate front receiving platform and pressing plate
3
tension control
Swing roll type, low friction cylinder controls the tension, and the sensor detects and displays the tension
4
Deviation correction system
Photoelectric deviation correction and linear guide rail (the maximum moving range is 100mm)
5
Deviation correction motor
Dongdeng deviation correction actuator
6
Winding power
Winding motor (2.2kW)
7
Iron removal after rolling
Electromagnetic pole piece iron removal device, magnetic force of magnetic rod 10000~12000 Gauss
4.6 PLC touch screen control system
No.
Project
Describe
Note
1
system composition
Unwinding tension control, unwinding photoelectric deviation correction and deviation correction motor control, cutter motor control, rolling mill main drive control, constant pressure hydraulic station control, winding motor control, winding tension control, winding photoelectric deviation correction and deviation correction motor control
2
Operation layout
Control of braking, emergency stop and suspension.
3
major function
It is equipped with retraction and release sub control operation and main operation console, and all operation parts are equipped with emergency
4
Auxiliary functions
Stop and pause buttons (dynamic braking).
5
safeguard
It can digitally set the operation speed, pressure, gap between rolls and other instructions
6
Counting function
Full CNC operation of.
4.7 Equipment installation requirements
4.7.1 power supply: 3Ph 380V, 50Hz, voltage fluctuation range: +8%~ – 8%; The total power of the power supply is 60KW plus a 10% safety factor.
4.7.2 compressed air: after drying, filtering and stabilizing: the outlet pressure is greater than 0.6~0.8mpa; Trachea is Φ 8。
4.7.3 ambient temperature: ≤ 28 ℃.
4.7.4 relative humidity: RH ≤ 85%.
4.7.5 ensure that the air on site is dry and unblocked without acid-base corrosion.
4.7.6 main engine installation foundation: the thickness of foundation cement in the main bearing area is not less than 40cm, and that in other areas is not less than 10cm; The main part of the equipment (battery pole rolling mill) needs to be installed on a concrete foundation with a ground bearing capacity of not less than 10T/m2.
5. Technical parameters 5.1 main process parameters
No.
Project
Describe
Note
1
Effective dimension of rolled surface
Ф800mmx750mm, effective rolling width200~680mm
2
Line pressure between two rollers
Max4000KN
3
Non decaying hardness layer
Min 19mm
4
Roll hardness
HRC≥67， hardness uniformity≤HS±2
Show the test report
5
Roll surface roughness
Ra≤0.2
Show the test report
6
Roll straightness
≤±0.0015mm
7
Installed radial runout
≤±0.0025mm
8
Roll gap adjustable range
0-2.0mm，digital setting adjustment accuracy0.001mm. The left and right gaps between the two rollers are consistent
9
Rolling accuracy
≤±0.0015mm (Coatingaccuracy≤±0.003mm)
10
Pressure control accuracy
≤0.15T
11
Equipment running speed
Max30m/min
12
Trimming width
200mm-680mm
13
Maximum diameter of winding and unwinding
ф500mm
14
Maximum width of reeling in and out
680mm
15
Maximum weight of reeling in and out
500Kg
16
Coil cylinder diameter
Φ76mm
17
Radial runout error of winding shaft during equipment operation
≤±0.03
18
Roll surface of winding and unwinding shaft
≤0.15
19
Roughness Ra
≤±0.03
20
Coaxiality of winding shaft
Max. 0.2mm
21
Deviation correction accuracy
0 ~ 50N adjustable
22
Maximum tension of winding and unwinding
Except for stainless steel, surface treatment and coated parts, the surface of other parts of the fuselage is coated with international computer white paint
23
Device color
(it can be sprayed according to the color card provided by the customer)
6.1 one copy of equipment operation manual, maintenance manual and relevant data, including equipment drawings, circuit and electrical diagrams of machines and main parts and accessories.
6.2 a list of vulnerable parts (indicating the model, material, supplier and other information of vulnerable parts, including the diagram of vulnerable parts).
No.
Project
Describe
Note
1
Composition of spare parts
1 set of special maintenance tools
2
Vulnerable parts
1 set of hydraulic pipeline seal, 1 upper and 1 lower cutter, 2 scraper
Online service
+86 13174506016
