Battery Roll To Roll Transfer Coating Machine for Pilot Line

No.

Item name

Spec

Remark

1

Maximum coating speed

≤12m/min

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

2

Coating speed accuracy error

≤0.1m/min

3

Coating machine speed

15m/min

4

Overall length of coater

≤25m

5

Equipment air pressure

≥0.6MPa

Dry, free from impurities

6

Single side coating dry thickness error

±2μm

Except for 8mm edge and head and tail

7

Double side coating dry thickness error

±3.0μm

Except for 8mm edge and head and tail

8

Single side weight error in single chip

±1.5%

9

Minimum coating length

15mm

10

Minimum length dimension of single pole piece

50mm

(one coating plus gap)

11

Minimum length dimension of single double segment pole piece

100mm

(two coating plus gap)

12

Single side thickness error of electrode head and tail

+5μm ～ -10μm

13

Interval coating minimum gap

5mm

Coating speed ≤ 12m / 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

Edge uniformity error of winding

±0.5 mm

In case of Φ 400mm large coil

No.

Item name

Spec

Remark

1.

Installation structure

Installation of integral vertical plate

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 deviation correction, accuracy ± 0.5 mm

 ultrasonic detection

4.

Substrate operation mode

Forward coating, traction, reverse rewinding

5.

Winding / unwinding mode

3 inch air expansion shaft, manual coil change

Pad Shaft

The maximum load is 500kg

6.

Winding / unwinding direction

Up and down direction

7.

Winding diameter

≤φ500

8.

Aluminum alloy roller

Aluminum alloy roller is used, the surface is hard oxidation, the surface hardness is greater than HRC65

Finish Ra0.4, and do 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.

Wallboard electric box

Baking paint in the same color as the board

The rewinding / unwinding mechanism is mainly composed of manual rewinding / unwinding, 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 / unwinding, which avoids the phenomenon of winding and core pulling caused by loose inside and tight outside. The automatic deviation correction system adopts ultrasonic detection and has sensitive response. The uniformity of both sides of the winding is ensured

No.

Item name

Spec

Remark

1.

Coating method

Transfer gap/continuous coating

Servo motor drives the rubber roller to move when there is a gap

2.

Installation structure

Overall vertical board installation

Large-scale CNC processing; paint treatment

3.

Squeegee gap adjustment method

Servo motor adjustment

Number of servo motors 2

4.

Effective coating width

≤500mm

Substrate width ≤520mm

5.

Coating steel roll

φ120mm, circular runout below 1um, hard chrome plated on the surface

Servo motor + planetary reducer drive

Special steel, solid roller, no pinhole phenomenon

6.

Coating rubber roller

φ120mm, circle runout ≤10 um, servo motor + planetary reducer drive

Imported EPDM rubber, plus conductive agent, roller surface fine grinding

7.

scraper

φ80mm, straightness of scraper ≤1um

Wear resistance, NMP corrosion resistance, solid roller, double-sided comma scraper

8.

Coating tension control

Speed control mode, floating roller up and down control

Precision pressure regulator + tension assist cylinder

9.

Abnormal alarm function

The touch screen prompts the cause of the failure

10.

Back roller push

Servo motor drive

Number of servo motors: 2

11.

Trough mixing

Rodless cylinder control,

12

Counting function

Production quantity/length

13

Controller and man-machine interface

10.2 inch color touch screen

Easy to operate and maintain

14

Wall panel electric box

The same color paint as the slab

·The scraper is driven by the servo motor to drive the high-precision screw rod to the inclined block, and the horizontal movement of the inclined block and the inclined block is transmitted to the up and down movement of the scraper. The gap adjustment is set through the touch screen, which is easy to operate.

·The coating steel roller drive servo motor and the steel rod are connected by a double diaphragm coupling. The steel roller bearing adopts high-precision imported bearings. Through a unique installation method, the runout after installation is guaranteed to be below 2.0um. The steel roller is easy to disassemble and assemble, which is convenient for later maintenance.

·Compared with the traditional coating roller mechanism, the drive motor is fixed and connected by a double diaphragm coupling, which avoids the influence of motor vibration on the coating, ensures the coating accuracy, and avoids the motor and the rubber roller going back and forth together Movement, prolong the service life of the motor, and reduce the inertia of the rubber roller during intercoating.

·The driving mechanism of the coating rubber roller connects the motor and the rubber roller through the screw rod, and converts the rotation movement of the motor into the back and forth movement of the rubber roller. Both the rubber roller base and the motor are mounted on a movable sliding block, which has fast response and high precision.

No.

Item name

Spec

Remark

1

Heating power of single oven

18KW/section

Electric heating

2

Oven length

6 sections X3m=18m

3

Total exhaust air volume of equipment

Centrifugal fan; air volume 8000m^3/h~10000^3/h

Inverter control, adjustable air volume

4

Maximum oven temperature

150℃ (the highest temperature of the first and last section

The ambient temperature is 30℃, and the accuracy of single-cell measurement temperature is less than or equal to 5℃;

5

Oven surface temperature

110℃)

6

Temperature control accuracy

≤50℃

Temperature control meter indicating value difference

7

Air volume of single oven

±3℃

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

8

Oven drive roller

Centrifugal fan; air volume 3000m^3/h~4000^3/h

Grease-free rolling bearing; driven by geared motor

9

Oven drive mode

45# steel roller, the surface is plated with hard chromium, the diameter is φ42mm.

10

Oven insulation material, oven material, thickness, airtightness

Section 1.2 of the oven is arc-shaped and is a drive roller.

The oven’s thermal insulation material is rock wool, which is effective for thermal insulation, and the thickness of the thermal insulation layer is 100mm.

11

Oven rack

Section 3.4.5.6 refers to the horizontal placement and the passive roller mode.

Light gray (please provide color palette if you have special requirements)

The oven adopts cyclic heating method to heat up, heating up quickly, and low energy consumption;

The fan is controlled by a frequency converter to effectively adjust the air volume and pressure of each section of the oven;

No.

Item name

Spec

Remark

1.

Installation structure

Overall vertical board installation

Large-scale CNC processing; paint treatment

2.

Tension control

Speed control mode, floating roller up and down control

Precision pressure regulator + tension assist cylinder

3.

Traction roller

φ120mm, circle runout≤20 um, driven by geared motor

Imported EPDM rubber, plus conductive agent, roller surface fine grinding

4.

Tension partition

Press roller pinch method

5.

Stroke correction

Stepper motor drive, ultrasonic electric eye detection

Stroke correction for ovens over 18 meters

6.

Wall panel electric box

The same color paint as the slab

7.

Online detection device

Optional

The main function of the tension control part is to provide power for the operation of the substrate. The floating roller structure is adopted to ensure the stability of the tension of the whole machine, and the tension interruption function is also set up to maintain the stability of the substrate tension in the oven.