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Is automatic extractor controlled by plc system?

Views:0     Author:Site Editor     Publish Time: 2021-04-17      Origin:Site

Facing the constantly changing process requirements of die casting parts, the manufacturer started from the working principle of the automatic extractor and designed a plc system suitable for the extractor for die casting machine according to the new control requirements. As long as the program is changed and a small number of terminals are changed, the adjustable extractor operation can be updated, which brings great convenience to the die casting industry.

 

Here is the content list:

  • What is the composition of the extractor control system?

  • What kinds of actions can extractor complete for picking?

  • What requirement does extractor and plc system have in die casting production?

 

What is the composition of the extractor control system?

The extractor's control system is jointly implemented by PLC, sensors, frequency converters, travel switches and other control elements, which can accurately and effectively control the position and speed of the die-cast extractor, and has high stability.

The extractor's PLC system is composed of microprocessor unit, memory, input unit, output unit, I/0 expansion interface, peripheral I/0 interface and power supply. Each part is connected through the internal system bus.

The application of extractor can improve the labor intensity of workers, increase production efficiency, but also improve the die-casting working environment and reduce waste of resources.

 

What kinds of actions can extractor complete for picking?

The extractor is one of the peripheral automation equipment for die-casting, which realizes the clamping from the mold through the principle of mechanical linkage. After the product is clamped by the extractor, it will be sent to the mechanical equipment in the product safe area according to the ideal trajectory.

The extractor can be single-acting, or it can be connected with die-casting machine, sprayer, and soup machine to form fully automatic production. The following describes the operating instructions of the die-casting pick-up machine:

  • Forward & Backward

When the switch is pushed out in the forward direction of the extractor, it will advance to the forward limit position. When the switch is pushed out in the backward direction, it will move back to the final position.

  • Horizontal

When the switch is extruded in the horizontal forward direction, the extractor will advance to the horizontal forward limit position; when the switch is extruded in the horizontal backward direction, the extractor will retreat to the horizontal backward limit position.

  • Spin

When the switch is pushed out in the rotating direction, the extractor rotates to the horizontal downward position, and when the switch is pushed out in the rotating direction, the extractor will rotate back to the vertical standby position. This action is effective when retreating horizontally.

  • Manual operation

When the switch is pushed out in the clamping direction, the extractor clamps the casting handle inward, and when the switch is pushed out in the clamping direction, the extractor is released.

  • Automatic operation

When the automatic switch option is turned on, the extractor can be linked with the die-casting machine for automatic extraction operation.

 

What requirement does extractor and plc system have in die casting production?

In the die-casting production, the extractor is used to coordinate the work rhythm, and cooperate with the die-casting to complete the removal of castings, take and install cylinder liners, and inspect the castings. The operation is coordinated and controlled by the host to assist in the entire process of automatic die-casting.

Therefore, this requires the extractor to be dust-proof, rust-proof, waterproof, and smooth in appearance to facilitate cleaning. The clamping fixture on the robot arm should be suitable for picking and placing inserts and castings.

The extractor should adopt a floor-standing model, and the shaft must be rigid. When running, the extractor should be free of vibration, be able to automatically lubricate the shaft points at regular intervals, turn quickly, and position accurately.

As for the extractor's plc operating system, the operating panel is required to adopt a removable type, which is convenient for operation and suitable for close-range adjustment. The operation mode is divided into fully automatic, single cycle, and can also be fine-tuned manually.

The operation panel can display process setting parameters and real-time process parameters. All process parameters (such as speed, movement amount, motion program and cycle timing) can be adjusted and input with keys, which are automatically controlled by PLC.

If the extractor fails during operation, the plc system should active an interlock reset function, a fault display function, and a fault diagnosis function.

 

The process parameters of the adjustable extractor are analyzed, stored, and recorded by the plc system, and are under its unified coordinated control. In the automated die-casting system, the extractor for die casting machine commanded by the plc system is as flexible as an arm. Longhua Die Casting Machine Co., Ltd provides automatic extractor that work well with plc system and die-casting machines to improve the efficiency of your production activities.


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+8617355200961

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Longhua Die Casting Machine Co., Ltd was founded in Bengbu, Anhui Province, China. It is a professional high-tech enterprise engaged in design,manufacture and sale of cold chamber die casting machines and die-casting peripheral equipments.

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