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Automatic Vertical Plate Gap Coating Machine For Battery Production

Wechat:17720812054

Whatsapp:+86 13174506016

Email:David@batterymaking.com


  • Item NO.:

    TMAX-XHT-7839L
  • Payment:

    L/C,T/T,Western Union, Paypal
  • Product Origin:

    China
  • Shipping Port:

    Xiamen
  • Lead Time:

    5 days
  • Certificate:

    CE ROHS Certificate
  • Product Detail

Automatic Vertical Plate Gap Coating Machine For Battery Production 



I. Brief introduction of whole machine 

Equipment composition: 

1. Unwinding mechanism

2. Coating mechanism

3. Oven mechanism 

4. Traction mechanism

5. Rewinding mechanism

6. Control system


II. Technical parameters of battery electrode

a) Suitable substrate thickness: aluminum foil: 0.010-0.030mm,  copper foil: 0.006-0.030mm;

b) Suitable substrate width: aluminum foil: 300-660mm, copper foil: 300-660mm;

c) Pole piece aluminum / copper foil coil size: core aperture 3 inches;

d) Technical requirements for coating winding up and unwinding: coil diameter ≤ φ 500mm, core diameter 3 inches;

e) Coating slurry characteristics: lithium ion battery positive / negative slurry, viscosity: 1000 ~ 15000cps; after the slurry is fully stirred to meet the requirements of battery coating, it is filled in a running tank and stirred continuously, so as to improve the coating performance of the slurry

f) Coating material system: lithium cobalt oxide, ternary material, lithium iron phosphate, lithium manganate (related to coating drying efficiency and speed); negative carbon graphite system;

g) Single side coating dry thickness (excluding substrate): 50-150 μ m;

h) Maximum wet coating thickness: 100-300um (under the allowable condition of slurry viscosity)


III. Main performance parameters:

Number

Item

Parameter

Remarks

1

Maximum coating speed

≤14m/min

The normal coating speed is related to material system, coating thickness and solid content

2

Speed error coating accuracy

≤0.1m/min

 

3

Coating machine speed

15m/min

 

4

Overall length of coater

≤31m

 

5

Air pressure of equipment air source

≥0.6MPa

Dry, no impurities

6

Single side coating dry thickness error

±2μm

Edge, head and tail are excluded

7

Double side coating dry thickness error

±3.0μm

Except edge, head and tail 8mm

8

Weight error of one side in single chip

±1.5%

Measurement method (Fig. B)

9

Minimum coating length

20mm

 

10

Minimum length dimension of single piece single segment pole piece

50mm

(one coating plus gap)

11

Minimum length dimension of single-chip double segment electrode

100mm

(two coats plus gap)

12

Single side thickness error of electrode head and tail

+5μm  ~ -10μm

 

13

Interval coating minimum gap

5mm

Coating speed ≤ 6m / min

14

Accuracy error of coating length

±0.5 mm

Within 800mm

15

Overlap error of front and back coating

±0.5 mm

 

16

Overlap error of front and back coating edge

±0.5 mm

 

17

Evenness error of winding edge

±0.5 mm

Φ 400mm large roll

 

Winding / unwinding mechanism

Number

Item

Parameter

Remarks

1

Installation structure

Integral vertical plate installation

Large CNC processing, paint treatment;

2.

Tension control system

Torque control mode:

1. Servo motor drive;

2. Adjustable tension range 0-300n, tension fluctuation ≤ 2%

 

3.

Rectification method

Automatic correction, accuracy ± 0.5 mm

Ultrasonic testing

Stepper motor drive

4.

Substrate operation mode

Forward coating, traction, reverse rewind

 

5.

Winding / unwinding mode

3-inch inflatable shaft, single shaft winding and unwinding

Pad Shaft

The maximum load is 500kg

6.

Winding / unwinding direction

Up and down direction

 

7.

Winding diameter of winding / unwinding

≤φ500

 

8.

Aluminum alloy roller

Aluminum alloy roller is used, the surface is hard and oxidized, and the surface hardness is higher than HRC65

Finish Ra 0.4, and make dynamic and static balance treatment;

The roll passing of the whole machine shall be consistent

9.

Control system

Unwinding section setting function operation panel

 

10.

Wall panel electric box

Paint with the same color as the board,

 

The rewinding / unwinding mechanism is mainly composed of single axis manual rewinding, automatic tension control, automatic deviation correction and other functions. The traditional passive winding of magnetic powder is abandoned. When controlling the winding tension, the concept of "taper tension" is used, that is, the tension changes gradually during winding, which avoids the phenomenon of winding core pulling caused by loose inside and tight outside. The automatic deviation correction system adopts ultrasonic detection, which is sensitive. The evenness of both sides of the winding is ensured.

 


Coating mechanism

Number

Item

Parameter

Remarks

1.

Coating method

Transfer gap / continuous coating

The servo motor drives the rubber roller to move when the gap is between

2.

Installation structure

Integral vertical plate installation

Large CNC processing, paint treatment;

3.

Adjustment mode of scraper clearance

Servo motor knife adjustment

Number of servo motors: 2 sets

4.

Effective coating width

≤650mm

Base material width ≤ 660mm

5.

Coated steel roll

It has a diameter of φ160mm, circle runout less than 1um, and the surface is plated with hard chromium

Servo motor + planetary reducer drive

Special steel, hard chromium plating, no pinhole phenomenon

6.

Coating cot

φ160mmCircle runout ≤ 10 um

Servo motor + planetary reducer drive

Imported EPDM with conductive agent

Roll surface finish grinding

7.

Scraper

φ 120mm, scraper straightness ≤ 1um

Special steel, hard chromium plating, NMP corrosion resistance, hollow adjustable roller, double face scraper

8.

Coating tension control

Speed control mode, floating roller up and down control

Precision pressure regulating valve + tension auxiliary cylinder

9.

Abnormal alarm function

Touch screen prompts the cause of failure

 

10.

Back roll push

Servo motor drive

Number of servo motors: 2 sets

11.

Tank mixing

Cylinder + motor control, can set the stroke and speed freely

 

12

Counting function

Production quantity / length

 

13

Controller and human machine interface

10.2 "color touch screen

Easy to operate and maintain

14

Wall panel electric box

Paint with the same color as the board,

 

·The scraper drives the turbine worm reducer through the servo motor, drives the high-precision screw rod to drive to the inclined block, transmits the up and down movement of the scraper through the horizontal movement of the inclined block and the inclined block, and the clearance adjustment is set through the touch screen, so the operation is convenient.

·The coating steel roll driving servo motor is connected with the steel rod through a double diaphragm coupling. The steel roller bearing adopts high-precision imported bearing. Through unique installation method, it can ensure that the runout after installation is less than 1.0um. The disassembly and assembly of steel roll is simple and convenient for later maintenance.

·Compared with the traditional coating cot mechanism, the driving motor is fixed and connected by double diaphragm coupling, which avoids the influence of motor vibration on coating, ensures the coating accuracy, and avoids the motor and cot moving back and forth together, prolongs the service life of the motor, and reduces the inertia of the cot during inter coating.

·The driving mechanism of the coating cot connects the motor and the cot through a screw rod, which converts the rotary motion of the motor into the forward and backward movement of the cot. The rubber roller seat and motor are installed on the movable sliding block, with fast response and high precision.


Oven mechanism

Number

Item

Parameter

Remarks

1

Heating power of single section oven

18kw / section

Electric heating

2

Oven length

8 sections X3M = 24m

 

3

Total exhaust air volume of equipment

Centrifugal fan

Inverter control, air volume adjustable

4

Maximum oven temperature

Air volume: 8000m ^ 3 / H ~ 10000 ^ 3 / h

The ambient temperature is 30 ℃, and the temperature accuracy of single section is less than 5 ℃;

5

Oven surface temperature

≤50℃

 

6

Temperature control accuracy

±3℃

Temperature control meter indication value difference

7

Air supply volume of single section oven

Centrifugal fan

Air volume3000m^3/h~4000^3/h

Up and down blowing, frequency control, adjustable air volume.

8

Oven over roll

The active roll is 45# steel roller, and the passive roll is stainless steel roller

Grease free rolling bearing

Reduction motor drive

8

Oven drive mode

Section 1.2. The oven is designed to be climbing. The guide roller is the main driving mode. The diameter of the passing roller is 40mm. Section 3.4.5.6.7.8 is placed horizontally. The guide roller is passive.

 

9

Oven insulation materials, oven materials, thickness, sealing

The oven is made of stainless steel with the thickness of 1.3mm and the shell is made of stainless steel with the thickness of 1.3mm,

The heat preservation material of oven is rock wool, which can effectively insulate heat and keep heat. The thickness of heat insulation layer is 100 mm

10

Oven rack

Profile welding processing, surface painting treatment

Light gray (please provide color plate for special requirements)

The oven is heated by circulation heating mode, with fast heating and low energy consumption;

The fan is controlled by frequency converter, which can effectively adjust the air volume and pressure of each section of oven;

 

Traction mechanism

Number

Item

Parameter

Remarks

1.

Installation structure

Integral vertical plate installation

Large CNC processing, paint treatment;

2.

tension control

Speed control mode, floating roller up and down control

Precision pressure regulating valve + tension auxiliary cylinder

3.

Traction roller

φ 160mm, circular runout ≤ 20um

Reduction motor drive

Imported EPDM with conductive agent

Roll surface finish grinding

4.

Tension partition

Press roll pinch mode

 

5.

Travel correction

Stepper motor drive, deviation correction eye detection

 

6.

Wall panel electric box

Baking paint treatment

 

7.

On line detection device

Optional

Installation position reservation

The main function of traction part is to provide power for the operation of substrate. The floating roller structure is adopted to ensure the tension stability of the whole machine. In addition, the tension partition function is set to maintain the tension stability of the base material in the oven.

 

Control system

Number

Name

Brand

Remarks

1

PLC host

OMRON

Japan

2

Digital analog module

OMRON

Japan

3

Frequency converter

LS

The republic of korea

4

Touch screen

Weinview

Domestic

5

Temperature control meter

OMRON

Japan

6

Dial indicator

Precision pointer meter

Domestic

7

Miniature circuit breaker

Schneider

Schneider

9

AC contactor

Schneider

Schneider

10

Modular socket

Schneider

Schneider

11

Intermediate relay

Schneider or OMRON

Germany / Japan

12

Relay base

Schneider or OMRON

Germany / Japan

13

Optical fiber sensor

KEYENCE

Japan

14

Photoelectric switch

OMRON

Japan

15

Cylinder

Adek or qilike

Taiwan

16

Servo motor

Mitsubishi or Panasonic

Japan

17

Head servo motor reducer

Newcastle / Xinbao

Germany / Japan


IV. Site environmental requirements:

1) Ambient temperature: head part 27 ± 3 ℃

2) Relative humidity: the head part is no more than 50 ℅ hr;

3) Compressed air: after drying, filtering and pressure stabilization: the air pressure is more than 5.0kg/cm2; the gas consumption is about 4m3 / h

4) Power supply: three phase 380V, 50 Hz, voltage fluctuation range: + 7% ~ - 7%; maximum power of the equipment is 173kw; (about 60% of the maximum power under normal operation is related to the solid content of slurry, etc.)

5) Ground wire: protective grounding.

6) Ground requirements: the foundation is cement ground or terrazzo ground, with flatness of ± 2mm / m2 and bearing capacity of 1000kg / m2;





   

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