Vacuum Oil Filling Machine for Door Closer

Yueli vacuum oil filling machine uses intelligent control system. During operator work, the machine automatically fills oil without affecting operator's filling operation. Dual-tank dual-vacuum-pump structure. Fine pump pre-evacuates, large pump evacuates workpieces. This increases filling efficiency. Dual tanks fill oil alternately, eliminating the previous problem where oil stayed in the tank under pressure for too long, causing foaming and insufficient filling.

Machine Structure

The machine has the following physical configuration:

· 6-station oil nozzles.

· 2 vacuum pumps.

· Built-in heated oil storage tank.

Machine Functions

The machine performs three functions in one cycle:

· Leak test.

· Evacuation (vacuum).

· Oil filling.

Control System

The machine is controlled by an intelligent control system.

· 10-inch touch screen for control and monitoring.

· 6 stations can be selected independently.

· Each of the 6 stations has a corresponding control button.

Leak Detection and Fault Handling

When a leak is detected at any station, the operator can take the following actions:

· Press the corresponding button to close that specific station.

· An alarm shows on the touch screen.

· When the machine is started next time, all stations reset automatically.

Oil Filling Cycle Sequence

The workpiece filling program follows this sequence:

· Press start button.

· Workpiece descends for leak test (time adjustable).

· Evacuate to set vacuum level (delay adjustable).

· Automatic oil filling.

· When full (delay adjustable), automatic reset.

Dual-Tank Dual-Vacuum-Pump Design

The machine uses a dual-tank dual-vacuum-pump structure.

· Fine pump: pre-evacuates the system.

· Large pump: evacuates workpieces.

· Dual tanks fill oil alternately.

· This design increases filling efficiency.

· Eliminates foaming caused by oil staying under pressure too long in a single tank.

Operational Features

The machine is designed for continuous production with minimal operator interruption.

· Machine automatically fills oil during operator work.

· Auto-fill does not affect operator's manual filling operation.

· All filling parameters (leak test time, vacuum delay, fill delay) are adjustable.

Frequently Asked Questions

What is the machine structure?

6-station oil nozzles, 2 vacuum pumps, built-in heated oil storage tank.

What functions does the machine perform?

Leak test, evacuation, and oil filling.

How many stations does the machine have?

6 stations. Each station has independent control buttons.

What happens when a leak is detected?

Press the corresponding button to close that station. An alarm shows on the touch screen. All stations reset on next start.

What is the filling cycle sequence?

Start button → workpiece descends for leak test (time adjustable) → evacuate to set vacuum level (delay adjustable) → auto fill → full (delay adjustable) → auto reset.

What is the control system?

Intelligent control system with 10-inch touch screen. 6 stations can be selected independently.