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Parallel Shear Unit Shearing
  Mode of operation
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back Application:

The shear unit cuts the glass stream as it leaves the orifice of the feeder. The servo-motor based shear mechanism in combination with the MMC-software provides optimal conditions for a high-precision and high-speed cutting process.

next Application

back Mode of operation:

Shear Unit, based on Servo-Motor System
The two shearing arms are horizontally opened and closed by a rack-and-pinion drive. The shearing blades, which cut the glass, are mounted onto the shearing arms. The shearing arms are vertically adjustable while the shearing blades are also horizontally adjustable. This allows to fine-tune the shearing process to its optimum, since the movement profile of the shearing arms and the shearing cycle are controlled through the MMC-software’s graphic tool, which is precisely relayed to the shear mechanism via the servo-motor system. Glass temperature reduction due to shear blade contact is reduced to a minimum due to the very high shearing speed: glass to shear blade contact is around 50 msec.

Shear Unit, based on LINEAR Servo-Motor System
In order to increase the shearing precision (for extremely high quality requirements) and the capacity (cuts/min.), the linear movement of the shearing arms may also be carried out by two highly dynamic linear servo-motor systems. The shearing arms are mounted onto two slides, while two magnetic plates, which are installed underneath the slides, allow the shearing arms to follow the linear movement of the magnetic field. The electro-magnetic linear motor and the positioning sensor are mounted onto the watercooled static part of the slide. This reduces wear, since the media-supply (cooling water and current) are no moving parts. Since the linear movement is based on electro-magnetism, mechanical parts such as rack-and-pinion, spindles etc. are replaced – reducing the risk of any mechanical backlash. The inertia moment of rotating parts as well as the risk of overshoot distortion of the shear blades while shearing is thus also eliminated.

back Features:

Shear Unit, based on Servo-Motor System

Shear Unit, based on LINEAR Servo-Motor System

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