Hydraulic Sealing Machine Case Crimping Machine for Cylindrical Cell Lithium-Ion Battery

 Hydraulic Sealing Machine Case Crimping Machine for Cylindrical Cell Lithium-Ion Battery

1. Equipment Description

1.1 Working Principle

The hydraulic cylinder, driven by the hydraulic station power transmission device, enables intermittent motion. Using a copper-bushed guide seat in combination with high-precision high-frequency guide rods, the machine generates substantial pressure to press the battery case and cap to the process-required dimensions, achieving the sealing purpose.

1.2 Performance Features

The entire machine integrates electrical and mechanical systems, with production fully automated under PLC control. It offers low energy consumption, low cost, high efficiency, high precision, easy maintenance, and low failure rate.

2. Main Technical Specifications

l Airtac cylinders

l Mitsubishi electrical control system

- Touch screen fine adjustment control on the upper frame 

- ChuanZhun sensors - MEAN WELL power supply 

- Fitted with a safety protection device 

- Protective guard for the opening/closing of the upper pressing plate 

- Sealing: First, second, and third sealing molds, constructed from wear-resistant oil steel material

3. Main Components

A. Hydraulic Section

l Hydraulic-driven precision cylinder generates large sealing pressure.

l Positioning guide pillars move vertically with high performance.

l Eight copper bushings for accurate positioning and wear resistance.

l Mold positioning throughout the process, low noise.

l Touch screen manual fine-tuning, HMI smart control, easy settings.

B. Feeding Section

l Extra-long conveyor increases loading capacity, reduces operator workload.

l Transmission uses German NEY bearings.

l Taiwan TWT adjustable-speed motor drives wear-resistant feeding belt, ensuring accurate and safe material feed.

C. Pushing Section

l Intelligent sensors detect battery position and transmit signals quickly.

l Dual-axis positioning with single-cylinder U-shaped pusher block to pre-press battery caps.

l Pre-sealing mold integrates capping function; pre-sealing, second, and third sealing completed in one cycle.

D. Molding Section

- An Airtac cylinder actuates the bidirectional mold base for cyclic sealing, fulfilling the third sealing operation. 

- The mold base is fabricated from oil steel, subjected to heat treatment to attain wear resistance, corrosion resistance, and high-temperature resistance. 

- Optical fiber positioning prevents misaligned pressing; automatic alarm activates upon incorrect positioning. 

- Sealing molds are subjected to special vacuum treatment and manufactured from imported high-quality materials. 

- Under normal operating conditions, the mold service life exceeds 600,000 cycles. 

- The third sealing mold is equipped with a usage counter (manual reset exclusively).

E. Hydraulic Station

l Equipped with 5 MPa hydraulic station and 80 mm diameter hydraulic cylinder for sealing pressure.

F. Discharging Section

l Automatic unloading mechanism transfers finished cells to discharge chute.

l Loading and unloading on the same side for single-operator operation, reducing labor costs.

G. Electrical System

l Manual mode for mold adjustment/testing before switching to automatic operation.

l Mitsubishi PLC program monitors the entire process.

l Multiple sensors, safety light curtains, automatic alarms, and emergency stop function.

4. Specifications