200-Type Single-Station Z-Fold Layer by Layer Stacking Machine with Automatic Tail-Wrap for Lithium Cells

I. Function Overview

The separator is actively unwound, fed into the stacking platform via a tension mechanism, and then driven by the platform to move back and forth for electrode sheet positioning. Two robotic arms with suction pads separately pick up positive and negative electrodes from two left-side feed hoppers, precisely position them, and stack them onto the platform. After stacking, tail wrapping is automatically carried out (with a switchable non-tail-wrap mode), by separator cutting. A robotic arm transfers the stacked cell to the taping station for automatic taping, while the machine simultaneously initiates the stacking of the next cell.

II. Basic Parameters

1. Dimensions: 1700mm (L) × 2350mm (D) × 1877mm (H) (based on final design)

2. Power Supply: 220V 50Hz

3. Air Source: 0.5MPa

4. Working Environment: Non-corrosive gas/liquid, non-explosive gas

5. Color: Supplier standard (International Warm Grey 1C)

III. Technical Specifications

1. Applicable Dimensions:
Electrode Length: 80–180mm
Electrode Width: 120–230mm
Cell Thickness: 5–30mm
Tab Length Q ≤ 25mm
2. Machine Pace: 1.4–1.5 s/pcs
3. Electrode & Separator Alignment Precision: Center offset ±0.3mm
4. Dust Prevention: Hoppers and pre-positioning units feature effective dustproof setups
5. Dependability: High-precision and frequently moving modules secured with positioning pins
6. Multiple Sheet & Missing Sheet Safeguards: Incorporates detection and prevention systems
7. Electrode Tab & Corner Defect Inspection: Optional function to block damaged electrodes from entering the stack

Cell Specifications

Item	Spec		Remarks
Cell Length (L)	80–180 mm
Cell Width (W)	120–230 mm
Cell Thickness (T)	5–30 mm
Tab Exposure (L1)	10–25 mm
Tab Direction	Opposite sides
When Tab Opposed, L + L1 ≤	180 mm

IV. Standard Components

No.	Component	Qty	Description
1	Automatic Electrode Feeder	2	Slot-in custom hoppers; one each for positive and negative electrodes
2	Electrode Feeding Assist Unit	2	Brushes, vibrating, air blowing, dust suction, anti-multiple sheet
3	Lifting Mechanism	2	Ensures reliable pickup; auto stop alarm when material is lacking
4	Separator Tension Unit	1	Active unwinding with constant tension
4.1	Separator Correction System	1	Correction during unwinding
5	Mechanical Pre-Positioning	2	Precise mechanical alignment, dust collection, dust suction
5.1	Multi-Sheet Detection	2	Ultrasonic thickness check
6	Stacking Robotic Arm	2	Servo driven, hopper servo-controlled
7	Suction Cup Mechanism	2	Includes vacuum nozzles and suction plates
8	Stacking Platform	1	Servo-driven translation and lift with precision ball screw
9	Separator Air Blowing	1	Air blows the separator to the opposite side
10	Cell Transfer Robotic Arm	1	Transfers the cell automatically
11	Separator Cutting Mechanism	1	Hot wire cutting after length confirmation
12	Tape Application Unit	1	Tapes four sides (including tab gaps), position and amount configurable
13	Automatic Unloading Unit	1	Automatic stacking, batch removal
14	Electrical Operation System	1	Touchscreen with emergency stop, power switch
15	Control System	1	Built-in electrical and pneumatic routing
16	Frame Base	2	Color: Computer Grey
17	Dustproof Covers	2	Aluminum alloy + acrylic, interlocks and emergency stops
18	Dust Suction System	1	Blower suction for pre-positioning and hoppers
19	Vacuum System	/	Vacuum generator or external vacuum supply

 

V. Main Component Configuration

1. Standard Parts List

No.	Name	Brand	Remarks
1	Cylinder	AIRTAC
2	Linear Guide	DINGHAN/HIWIN
3	Ball Screw	TBI/HIWIN
4	PLC	OMRON

 

2. Changeover Parts List

No.	Component Group	Part Name	Unit	Qty	Remarks
1	Electrode Hopper	Movable Plate	Pcs	2	Adjustable range for hopper, pre-positioning, suction
2	Pre-positioning	Adjustment Plate	Pcs	2
3	Stacking Robot Arm	Suction Plate	Pcs	2
4	Stacking Platform	Compression Plate	Pcs	2
5		Cell Support Plate	Pcs	2
6	Unloading Unit	Support Plate	Pcs	2
7	Tape Application	—	Set	1
8	Others

3. Consumables List

No.	Name	Model/Spec	Manufacturer	Remarks
1	Suction Nozzle	Custom	Machined	Daily cleaning required
2	Compression Plate 1	Custom	Machined	10-day production cycle
3	Compression Plate 2	Custom	Machined	10-day production cycle
4	Vacuum Filter	VFD-3-06	CHELIC	Weekly maintenance
5	Vacuum Generator	VAB-0706	CHELIC	Weekly maintenance
6	Foam	—	—	Surface protection for cell
7	Teflon	—	—	Surface protection for sheets