Servo Application Solution for Four-column Tensile Machine

The servo oil pump system combines the fast stepless speed regulation function of the servo motor, which realizes at-will speed regulation, bringing huge energy-saving potential (more than 25% energy can be saved). By increasing the rotational speed of the motor, the output of the oil pump and the operating speed of the whole machine can be increased or accelerated. Compared with traditional machines, 36 finished products can be additionally produced per hour using this four-column tensile machine.

The tolerance of positioning closed-loop repeat accuracy indicated by the feedback data of the traditional resistance scale is up to ±0.1mm, and the closed-loop pressure indicated by feedback data of the pressure sensor is within 0.5 Mpa. The dual closed-loop control function substantially improves the molding quality of the products.

Compared the variable displacement pump system, the average noise level is reduced by 15% to 20% decibels, while the oil temperature is reduced by 10℃ when using a servo system. By regulating the motor speed, the fast downward movement and slow mold closing can be carried out under a well-controlled manner, which can simultaneously set multiple speeds, making the whole machine run smoothly and durable. The stepless speed regulation and pressure regulation of the lower cylinder can be realized through feedback from the motor encoder, and the high-precision blank holder force can be generated through the control of the lower cylinder proportional valve by a specialized computer.

Solution for Steel Wire Winding Machine

Compared to high-power motors or multiple motor pump sets typically applicable to equipment with large tonnage, servo motors can save 10% of electrical energy when no-load.

Two servo pump units are used to realize multi-pump confluence: when pressing rapidly, both pumps operate together, while during feeding process, only either pump operates. Model selection and servo response speed are important for steel wire winding machines to ensure efficiency while saving costs. When there is one single pump in operation and the other out of operation, more than 30% electric energy can be saved.

Multiple presses carried out at different pressures and positions, technical processes that satisfy customer requirements, including micro return and quick return, to protect products and work pieces well.

By regulating the speed of the motor at will to control the start and stop of machines with large tonnage, it can significantly low noise level and ensure stable and reliable operation of the machine.

High-precision communication electronic scale can provide repeat accuracy at ±0.02mm, which satisfies customer requirements for the products.

Solution for four-column cold extrusion

Flexible and high-precision positioning can be realized using newly equipped communication card and specialized high-precision electronic scale. The data generated by the electronic scale is directly fed back to the driver execution unit in a closed-loop manner, eliminating the need for computation and communication processing. It is recommended to customers' own host computers, which guarantees accuracy and is easy to operate.

The main pump operates in a closed loop throughout dual-pump operation. When the set position is almost reached, the auxiliary pump will be out of operation, and the final position will be controlled by the main pump, thereby ensuring position accuracy without reducing efficiency.

Servo Application Solution for Hydraulic Station of Vulcanizing Machine

Servo control with rapid response and high precision

Noticeable energy-saving effect,  40% energy can be saved

Effectively reduce oil temperature and heat generation

Low level of industrial noise, the noise level of servo hydraulic system and equipment can be approximately reduced by 10db