Two-Sealing Production Line of Polymer Lithium Battery

1.Machine introduction:

It is used for automatic air extraction and two-sealing sealing of soft-pack lithium battery cells. The overall structure is a linear layout design; the air extraction and opening forming structure adopts the upper and lower circulation of the fixture plate, four independent vacuum chambers, and one out of four methods; Manually insert the battery to “use the upper and lower chambers to form a closed cavity, and then vacuumize the cavity to form a negative pressure state. At the same time, the bayonet pierces the pre-packaged gas belt part to discharge the gas in the battery core; then through the sealing The head uses the heat conduction effect to act on the packaging material (aluminum-plastic film) of the lithium battery, making it heated and softened to a molten state and fused together; the heat source is transferred to the head (copper) through a resistance heating tube and then acts on a certain pressure Down conduction to the aluminum-plastic film to be welded to complete the pressing and welding; the temperature of the head can be adjusted and kept constant through the temperature-sensitive thermocouple and the temperature controller; the suction cup manipulator automatically unloads the battery to the subsequent process equipment; synchronous The belt drives the cell to flow in a straight line, and the single station works independently to realize sealing; side voltage test; left trimming; right trimming; left and right synchronous single folding; Belt; NG automatically feeds into the material box; assembly line production operation mode; after forming, the battery cells have a beautiful appearance and good consistency; manually collect the battery cells on the pull belt, and then check whether the appearance of the battery cells is defective; realize sorting blanking.

This machine is designed to be operated by 2 people; the structure of the whole machine adopts split design. Operation, maintenance, convenient transportation, safe use; PLC control, touch screen display operation, design segment start, stop, perfect alarm function and other alarm prompt memory function

2.Equipment technical parameters and configuration:

1. Applicable products: square soft bag, thickness: 4-15mm; width: 30-120mm; length: 50~190mm;

2. Production capacity: 700～800PCS/H (determined by process time parameters; the default cycle is 20 seconds; production capacity is about 720 PCS/H); (default time for secondary vacuum packaging: vacuum ≤ 5S, vacuum holding time ≤5S, packaging time ≤5S; the actual setting is for reference only);

3. Head length: 210mm; material is copper (H62);

4. Packaging pressure: 3-7MPa; adjustable;

5. Encapsulation time: 0-99 seconds; can be set;

6. Packaging temperature: the packaging temperature is normal temperature ~ 250°C; it can be set, and the control accuracy is ±3°C;

7. Packaging parallel accuracy: ±0.015MM; equipped with X.Y direction screw mechanical adjustment;

8. Unsealed area precision: 0.5MM;

9. Heat sealing head width: 6MM (or make as required);

10. Power mode of inner pressure plate: cylinder type inner pressure plate, the pressure can be adjusted;

11. Side voltage test: positive tab and aluminum-plastic film; use double needles to pierce the aluminum-plastic film;

12. Cutter. Folding knife. Length of ironing head: 210mm;

13. Trimming accuracy: ±0.2MM;

14. Folding accuracy: ±0.2MM;

15. Ironing time: 0-99 seconds; can be set;

16. Unloading and sorting: NG is automatically unloaded into the material box; good products are unloaded into the pull belt, manually collected, and visually inspected;

17. Operators: 2 people; 1 person for loading, 1 person for receiving and visual inspection;

18. Appearance of the finished battery cell: the surface is smooth and flat, the seal marks are complete and there are no wrinkles and glue spots, there is no damage to the corners, corrugated inside and outside, and there must be no short circuit and scratches.

Support non-standard customization, provide automated production solutions and standardized intelligent production lines according to product process requirements.

3.Power configuration and installation parameters:

1. Power supply: AC380V, 50 Hz, maximum power 13KW

2. Compressed air: 0.5～0.7Mpa, the maximum consumption is 20L/min, and the inlet pipe adopts φ12 interface

3. Vacuum source (provided by the customer): -98Kpa, the maximum consumption is 40L/min, and the inlet pipe adopts an inner φ19 interface

4. Dimensions: length 4200x width 1400x height 1800MM. (subject to the actual object)

5. Equipment weight: 2100KG. (subject to actual conditions)

6. Equipment load-bearing ratio: control the ratio of total weight to load-bearing area ≤ 500kg/㎡

7. Measured at 1000MM from the outer wall of the machine, the noise of the equipment is ≤ 75 db

8. Equipment utilization rate ≥ 95% (only failures caused by equipment, regular maintenance of equipment, and pre-production preparations are not included)

9. Equipment marriage rate: ≥95%

10. Equipment failure rate: ≤2%

11. Product qualification rate: ≥99.5%