Blue Film Covering Machine for Prismatic Battery Production

1、Equipment introduction:

1.1Diagram of complete machine   

      （The outer coat of the machine adopts aluminum profile + acrylic

入料平台：Feeding platform:

放膜组：Film release group:

人机界面：interface:

成品电池输送带：Finished battery conveyor belt:

宽面及右边面包膜：Wide face and right side bread film:

左边窄面折边:Left narrow hem:

地面折短边：Ground fold short edge:

底面折长边：Bottom folded long edge:

1.2 Appearance dimension

       4350mm（L）× 1100mm（W）× 1950mm（H）

1.3 Equipment introduction

This equipment is applicable to the coating of prismatic battery cells. A layer of insulating glue is covered and pasted on the surface of the whole cell, which can better protect the cell and prevent short circuit. Manually power on the battery and collect the battery.

 

1.4 Principle and effect of glue coating

1.4.1The adhesive film is wrapped on all sides along the height direction of the battery and sealed on the side (as shown in Figures 1 and 2)

  

   

（Figures 1）               （Figures 2）

1.4.2 The bottom of the battery is sealed in a "Y" shape, with the short side sealed first and then the long side sealed (as shown in Figure 3)

 Figure 3

1.5 Process characteristics

1.5.1Size adjustable，Adjustable range：85mm～220mm（H）* 130mm～200mm（W） * 20mm～60mm（T）  

1.5.2 Bubble in capsule：No wrinkle, indentation, flanging or damage; Bubble≤5mm，The number of bubbles on each front is ≤ 5, and the number of bubbles on each side is ≤ 3; Do not damage the battery or scratch the insulating film during the coating process;

1.5.3 Coating accuracy: ± 0.5mm (no blank on the battery surface); Adjustable overlap: 5mm-10mm

1.5.4 Insulate the part contacting the battery to prevent short circuit and scratch;

 

1.6 Incoming material

Insulating film / glue: according to customer's requirements

 

1.7 Institutional characteristics

1.7.1 The part in contact with the battery is designed with non-metallic materials;

1.7.2 Any part in contact with the battery has short-circuit protection, emergency stop protection, and power / gas cut-off protection function;

1.7.3 Coating action does not damage the battery；

1.7.4 The contact part with the battery is made of non-metallic materials;

1.7.5 Equipment operation status display (three color light);

1.7.6 Sufficient maintenance space shall be reserved for the whole equipment and vulnerable parts.

 

2、 Equipment use environment

Item	Specification
Power	AC220V  50/60HZ
Rated power	3.5kw
compressed air	5kgf～7kgf/ｃ㎡(0.5Mp-0.7Mp) Dry, anhydrous
relative humidity	20～75％HR
Environmental cleanliness	There is no corrosive gas, liquid or explosive gas on site
Rated power	3.5kw
Bottom bearing	≥500KG/m²

 

 

3、Technical parameter

Item	Specification
Size	4350mm（L）× 1100mm（W）× 1950mm（H） (the overall dimension of the equipment may be changed according to the specification of the battery)
Weight	800Kgs
Rated power	3.5kw
Compress Air	5kgf～7kgf/ｃ㎡(0.5Mp～0.7Mp) Dry, anhydrous
Efficiency	6~8 PPM（eg:34135214）
Operator	1
Product qualification rate	≥99.5%
Equipment failure rate	≤2% (faults caused by equipment only)
Battery size	Eg: 214mm（H）* 135mm（W） *34mm（T） Acceptable：27135206、42173166、5417345、36130130

 

4、Equipment principle and main structure

4.1 Manual feeding (Figure 4)

Manually place the cell on the feeding table, use the air cylinder to automatically correct the electric cell, and push the electric cell to the next station through the servo motor

(Figure 4)

 4.2 Bluing film mechanism (Figure 5)

The blue film unwinds through the tension mechanism to realize stable film unwinding

(Figure 5)

4.3 Wide and narrow bread blue film mechanism (Figure 6)

The servo push electric core is adopted, and the film drawing, coating and cutting actions are completed through the air cylinder + servo and precision mechanism to realize wide and narrow bread blue film.

(Figure 6)

4.5 Bottom hem (Figure 7)

Use the precision fixture to position the electric core, and complete the bottom folding of the electric core (excluding the top folding) in combination with the cylinder folding mechanism.

(Figure 7)

4.6 Cell collection structure (Figure 8)

Place and collect the electric cores orderly one by one through the motor drive belt.

(Figure 8)

5、Major component brands

SN	Item	Brand	Origin
1	servo motor	Xinjie	China
2	Stepper motor	Research control, leisai	China
3	PLC	Xinjie	China
4	interface	Kunlun, weiluntong	China
5	Air conditioning combination	AIRTAC	Taiwan
6	switch	IDEC	Japan
7		Siemens	German
8		Chint	China
9		SCHNEIDER	France
10	Pneumatic components	AIRTAC	Taiwan
11	Flow limiting valve	AIRTAC	Taiwan
12		SMC	Japan
13	Pressure relief valve	SMC	Japan
14		AIRTAC	Taiwan
15	Proximity switch	SUNX	Japan
16	Magnetic ring switch	AIRTAC	Taiwan
17	Linear guide slider	HIWIN	Taiwan
18		TBI	Taiwan
19		CSK	Taiwan
20	Ball screw	HIWIN	Taiwan
21		TBI	Taiwan
22		CSK	Taiwan
23	Photoelectric switch	Panasonic, Omron, keens	Japan
24	Vacuum detection	AIRTAC	Taiwan
25	Bearing	NSK	Taiwan