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Slot die coating macine

Double Sides Slot Die Coating Machine for Battery Production Line

  • Model Number:

    TMAX-SYD-TJY-7540S-B
  • Type:

    Automatic
  • Dimension(L*W*H):

    L(48000mm)* W(3500mm)* H(4500mm)
  • Compliance:

    CE Certified
  • Warranty:

    One year limited warranty with lifetime technical support
  • Payment:

    L/C D/A D/P T/T Western Union
  • Delivery Time:

    5 days
Product Details


Double Sides Slot Die Coating Machine for Battery Production Line

 

Basic functions of equipment

This equipment uncoils and transports the base material to the coating mechanism through the unwinding mechanism. The slurry is transported to the coating slot die head stably under a certain pressure through the feeding system. The slurry is sprayed onto the single side of the base material (copper foil or aluminum foil) through the extrusion grinding lip. The coated base material and slurry run to the drying box for drying under the traction of the device drive mechanism. The dried material is driven and rolled back after drying. Single-sided coating, tandem double-sided coating machine.

 

Equipment characteristics:

1.Digital tension: the unwinding, rear drive and winding tension can be digitally set on the touch screen, and the results of the three sections of tension can be displayed on the touch screen at the same time. It makes the adjustment of tension very convenient, and you can clearly understand the smoothness of base band operation on the touch screen.

2. Servo with brake: the distance control between the die head and the base wheel drives the servo motor to join the brake, which can eliminate the change in the power-off time distance, thus reducing the machine adjustment time.

3. Interrupt control: Interrupt control is used in all places that require speed at the right time. The result of interrupt control makes the error of coating length and alignment smaller.

4. Strip coating: adopt the form of customized die head instead of standard die head to reduce the slurry loss caused by gasket chamfer and facilitate operation. For strip coating, the edge thickness can be adjusted according to the size required by users.

5. Dynamic filtration system: special filter structure, which can effectively filter all kinds of impurities, is suitable for all kinds of viscosity liquids. The equipment has good reliability, long maintenance cycle and low maintenance cost. Compact structure and small floor area. Large filtration capacity per unit area, strong processing capacity, and multi-level filtration.

 

Hardware and function description of equipment

1.Feeding system: low-speed running slurry mixing tank+Japanese Bing Shen servo pump+servo motor drive+stainless steel pipe. Its main function is to dynamically store slurry and stably transport slurry to the filtration system to ensure constant temperature of slurry at a certain temperature.

     2.Filtration system: The core technology of Series I (external scraper type) continuous scraper filter is its filter screen and scraper assembly. The cross section of each mesh wire of the wedge type filter screen is triangular, and the outer wall of the filter screen is smooth, which is conducive to scraping the impurities attached to it by the scraper. The outside of the filter screen is a triangular opening, so that the sundries less than or equal to the filtering accuracy requirements will not be stuck on the filter screen, so that the filter will always be in good working condition. When the scraper scrapes on the outer surface of the filter screen, the blockage on the surface of the filter screen will be removed smoothly to keep the filter screen unblocked. The large particles intercepted by the scraper from the surface of the filter screen enter the waste chamber and are discharged regularly.

     3.Coating machine: unwinding mechanism+coating mechanism+drying+secondary coating mechanism+rear driving mechanism+automatic winding mechanism. Its main function is to evenly coat the slurry on the base material (copper foil and aluminum foil), and then roll up after drying.


     Software and function description

     1. Both the frequency converter and the temperature controller adopt the communication control mode. All the fan frequency adjustment and temperature setting can be completed on the touch screen, without opening the control cabinet for adjustment.

     2.The coating function is displayed and adjusted on the touch screen

     3.The surface density detection and coating mechanism form a closed-loop control, and the data storage and processing are detailed in the description of the density detection equipment.

     4. The user provides the network on site, and our company can realize the remote debugging function.

     5.MES system interface shall be reserved for equipment to facilitate production quality data collection and management.


      Technical Specifications

Main components of coating machine

1. Unwinding mechanism:1set

2. Coating mechanism:2set

3. Drying mechanism (double layer):10set

4. Rear drive mechanism:1set

5. Winding mechanism (automatic roll change):1set

6.Electric control system:1set

7. Thickness gauge (dry thickness):1set


Ⅱ、Configuration of key parts of equipment:

SN

Name

Brand

Origin

1. 

Mechanical components of coating head

2. 

Coating head

Ningde Zhongneng

domestic

3. 

Coating roller

40Cr+ Hard chrome plating

With Japanese NSK bearing

4. 

Front drive roller

40Cr+ Hard chrome plating

With Japanese NSK bearing

5. 

Guide roller

TMAX

Anodizing of aluminum alloy surface

domestic

6. 

Guide rail of coating mechanism

PMI/TBI

Taiwan

7. 

Coating mechanism ball screw

PMI/TBI

Taiwan

8. 

Coating roller and front drive roller bearing

NSK/NTN

Japan

9. 

Displacement sensor

Panasonic/DELTA

Japan

10. 

Pneumatic components

11. 

Die head propulsion cylinder

SMC

Japan/Taiwan

12. 

Electric proportional valve

SMC

Japan

13. 

Pneumatic components

AIRTAC

Taiwan

14. 

Motor and reducer

15. 

Servo motor of coating roll and front drive roll

An’chuan

Japan

16. 

Coating roller, front drive reducer

Alpha/Newcat/Xinbao

Germany/Japan

17. 

Reeling and unwinding reducer

Liming

Taiwan

18. 

Oven idler motor

Liming

Taiwan

19. 

Fan

Stainless steel, multi-wing low noise

Guangzhou

20. 

Deviation correction and tension system

21. 

Fully automatic deviation correction

(Winding and unwinding and process deviation correction)

Aibo/Yuze/Dongdeng

Shenzhen/Shanghai/Chongqing

22. 

Tension sensor

(Winding and unwinding, process tension)

Aibo/Yuze                   

Shenzhen/Shanghai

23. 

Electrical components

24. 

PLC

Panasonic/Huichuan

Japan/domestic

25. 

PLC Digital/analog module

Panasonic/Huichuan

Japan/domestic

26. 

Touch screen

HYTEC/VIRON

Taiwan

27. 

Thermostat

Omron

Japan

28. 

Color code sensor

 SICK

Germany

29. 

Frequency converter

Tai'an/Yaskawa

Taiwan/Japan

30. 

Miniature circuit breaker

 CHINT

France

31. 

Contactor

CHINT

France

32. 

Intermediate relay

CHINT

France

33. 

Thickness gauge (dry thickness)

Bivariate/RUIQI

domestic

34. 

NMP Concentration alarm

Gastron

 Korea

In case of special circumstances, the above brands of the same level shall be adopted.

Service conditions, basic functions and technical indicators:

SN

        Item

               Technical parameter

     Remark

1. 

Slurry system and substrate

2.

Suitable for slurry system

1、 cathode: lithium iron phosphate, lithium cobaltate, lithium manganate, ternary and other oily or aqueous systems.

2、 AnodeOily or water-based systems such as graphite; Super capacitor and other related slurry systems.

 

3. 

Suitable for slurry viscosity

Oily solvent: 2000-8000 Cps

 

Intermittent coating

Aqueous solvent: 2000-6000 Cps

1000~10000 Cps

Continuous coating

 

Suitable for solid content of slurry

Cathodic paste

35%~75%

PVDF system

Anodic paste

S.c.30%~65%

PVDF system

 

s.c. 30%~65%

SBR system

4. 

Solvent characteristics

Oily solvent:NMP(s.g=1.033,b.p=204℃)

Aqueous solvent:

H2O/NMP(s.g=1.000,b.p=100℃)

Reference

5. 

Suitable base material thickness

Al): 830um    (Cu)4.530um

 

6. 

Suitable for base material width

350~670mm

 

7. 

Mechanical characteristic index

8. 

Design width of roll surface

750mm

 

9. 

Guide roller outside drying channel

About:Ф120mm

Aluminum guide roller, surface hard oxidation   

Finish≤0.8

10. 

Mechanical running speed of equipment

1-60m/min

Adjustable

11. 

Maximum coating speed

10-35m/minDepending on the slurry system and drying conditions

 

12. 

Full range tension of the whole machine

3~25Kg.fTension fluctuation ± 2%

 

13. 

Basic function

14. 

 

 

Coating method

 

Intermittent coating

Front 3-section unequally spaced intermittent coating/back automatic tracking front and unequally spaced 3-section coating

 

Continuous coating (including strip coating method)

Infinite length coating

15. 

 

 

Baseband operation mode

Single sided intermittent

Operation mode during intermittent front coating

 

Double sided intermittent

Operation mode during intermittent reverse coating

Continuous coating

Continuous and uninterrupted coating method

Wearing straps

The method of uncoating the empty belt

Tape rewind

Rewind operation mode during the first test piece inspection

16. 

Thickness elimination function

During intermittent coating

Can eliminate thickness at the beginning and end of the coating section

 

17. 

Alarm function

Sound, light, and text alarm

When the device malfunctions, the touch screen prompts the location of the fault and there is an audible and visual alarm

 

18. 

Coating accuracy technical indicators

19. 

Coating section length error

± 0.5mm   

 

20. 

Width error

± 0.5mm   

 

21. 

Positive and negative alignment error

± 0.5mm

 

22. 

Minimum intermittent length

6mm

 

23. 

Minimum coating length for multiple segments

50mm

 

24. 

Single sided coating dry thickness range

40-200μm     

Related to material D50

25. 

Coating surface density error

±1.3% (single side )

±1.2% (double sides)

Remove the influence of poor substrate; But the measured value includes the weight of the substrate

Excluding edge impact areas

Substrate error ≤ 1% (single chip

26. 

Deviation correction accuracy of winding and unwinding

± 0.5mm

 

27. 

Electrical indicators

28. 

Source

3~380V/50HZ3 phase,5 wires

 

29. 

Total installed power

920

 

30. 

Oven heater power consumption

20*40Kw=800KW

Power consumption after constant temperature: less than 500KW

External electric heating

31. 

compressed air

≮0.6MPa Clean compressed air

Gas consumption0.5M3/H

 

32. 

Machine size and weight

33. 

Whole size

L10*4M+12M=52M*W3.5M*H4.5M

 

34. 

Total weight

About 40T