Semi-Auto Cylindrical Cell Winding Machine for 33140 Cell 

Ⅰ、Device Function Description： 

This machine is mainly used for precision winding of cylindrical lithium-ion battery cells.

The working process is as follows: manually guide the positive and negative plates into the winding part, separate them from the diaphragm, and roll them according to the process requirements. The termination tape is automatically attached, and the battery cells are automatically cut off.

Ⅱ、Equipment functions and characteristics

1、 Adopting a single needle structure for threading and rolling.

2、Manual introduction of electrodes, automatic winding, automatic needle changing, automatic application of termination tape, and automatic cutting；

3、The adhesive tape is applied horizontally (with the termination tape perpendicular to the tab), ensuring a smooth and precise control of the adhesive position without pulling the battery cell tightly; Stable and reliable adhesive application;

4、The needle winding speed is adjustable;

5、Active unwinding of two separators, tension proximity switch control technology, can automatically and smoothly adjust tension during the winding process;

6、Equipped with a electrode dust removal device

7、Separator outsourcing closure；

8、The rolled out battery cells are free from damage, core pulling, and electrode misalignment.

9、 Easy to operate, simple and fast to adjust and replace specifications;

Ⅲ、　Process flow

This device meets the process standards for winding cylindrical lithium-ion batteries: the separator completely wraps around the negative electrode, and the negative electrode wraps around the positive electrode. The process flow is as follows:

1、Separator pre winding: The use of toothed knife technology can save the length of pre winding separator;

2、Entangled negative electrode: manually guide the negative electrode into the winding part; Entangled positive electrode: manually guide the positive electrode plate into the winding part; 

3、Winding；

4、Moving workstations；

5、Cut off the separator, apply termination adhesive, and cut off the material.

Ⅳ、The main components of the equipment

1、This equipment consists of a winding device, a changing station device, a separator unwinding device, a electrode guide device, a tape sticking device, a cutting device, and a control system.

2、 Winding device (two sets): composed of single end threading, ensuring winding accuracy and convenient replacement of winding needles;

3、 Shift station device (one set): used for switching between winding station and adhesive station;

4、 Separator unwinding device (two sets): diaphragm material roll actively unwinding air pressure regulation control;

5、 Electrode guide device (two sets): single-sided adjustment, easy to adjust;

6、 Gluing and cutting device (one set).

Ⅴ、Technical standard

1、Separator width：50-140mm   winding needle specification：∮3.0-∮12mm，,customize according to customer’s requirement ,electrode width:48-137mm

2、Material specification requirements (unit: mm)

3、Applicable cell outer diameter(∮8-∮33mm)

4、Winding accuracy; When ensuring that the electrode meets the following conditions:

The width error of the electrode is less than ± 0.2mm; The "S" bending error of the electrode is less than ± 1mm/500mm;

The tower shape error of the separator material roll is less than ± 0.2mm;

The winding accuracy can meet the following requirements: the alignment error of the separator is less than ± 0.5mm; The alignment error of the electrode is less than ± 0.5mm;

Can achieve an alignment of ± 0.5mm between the negative electrode and the positive electrode, as well as the separator and the negative electrode

5、 Qualification rate: ≥ 98% (excluding non equipment factors)

Ⅵ、Technical standard