Fully-Automated Refrigerator Door Panel Stamping Line

An automated stamping solution for refrigerator door panel production, integrating four 200T presses, a five-station gantry manipulator, automatic loading, secondary positioning, unloading and die change systems.

Conceptual Line Configuration

Production Line Overview

Sheet blanks are loaded onto the A/B loading carts by forklift and manually aligned. The loading manipulator transfers each blank to the secondary positioning unit. The five-station gantry manipulator then transfers the blank sequentially through four 200T presses. After four stamping processes, the finished refrigerator door panel is transferred to the unloading conveyor for manual collection.

Technical Specifications

Whether the production line equipment is automated or manual depends on various factors, including the client's specific requirements, cycle time, investment budget, and available facility space. Our projects constitute fully customized, integrated turnkey solutions—encompassing every stage from initial consultation, design, and manufacturing to installation, commissioning, and after-sales support.

Parameter	Specification
Application	Refrigerator Door Panel
Production Cycle	≤13 s
Press Quantity	4
Press Capacity	200T
Press Stroke	350 mm
Max. Blank Size	1200 × 1000 × 0.5 mm
Stamping Processes	4
Transfer System	Five-Station Gantry Manipulator
Loading System	A/B Loading Carts
Unloading	Belt Conveyor
Die Change Method	Front-In / Rear-Out
Max. Die Weight	3.5T

Introduction to Core Equipment

Four-Station Stamping System

Core stamping unit with four 200T presses for continuous automated door panel production.Four 200T presses are arranged in sequence to complete the required stamping processes. The presses are integrated with the gantry transfer system for continuous automated production.

Two functional features

● RFID Die Identification

● Die Surface Air-Blow Cleaning

Five-Station Gantry Transfer System

The gantry system consists of five independent manipulators. Each manipulator moves along the X, Y and Z axes to transfer workpieces between stations. No. 1 manipulator is responsible for loading and includes double-sheet detection, while No. 5 manipulator handles unloading.

Automatic Loading and Secondary Positioning

Sheet blanks are loaded, transferred and positioned before entering the automated stamping process.

① A/B Loading Carts

Sheet blanks are loaded by forklift and manually aligned before the cart moves to the manipulator pick-up position.

② Loading Manipulator

Transfers sheet blanks from the A/B loading carts to the secondary positioning unit.

③ Secondary Positioning Unit

Positions each sheet laterally and longitudinally before it enters the stamping process.

Front-In / Rear-Out Die Change System

As shown in the figure, four stationary die-change tables are positioned at the front of the press for die changing, and another four are located at the rear. The push-pull mechanism utilizes a dual-hook design capable of moving two die sets simultaneously: the die from the front table enters the press while the die currently in the press moves out to the rear table, thereby enabling efficient die changing.

Integrated Safety Protection

Safety Door Operational Status:

1.The safety gate latch must be disengaged to open the gate; when the safety gate is open, all equipment on the line stops.

Safety Light Curtain Operating Status:

2.During normal operation, touching the safety light curtain causes the entire system to stop; the safety light curtain is deactivated during mold change mode.