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该电磁装置的电磁铁配置在板堆的两侧和上面,电磁辊配置在板堆右端。两侧的电磁铁使板堆上部的板料相互分开。上方的电磁铁将它升起并夹住,由电磁辊送进。一般来说,电磁铁均配置在板堆的前端,配置在侧面的电磁铁,其磁力线的中心应与板堆的高度一样,或稍高于板堆的高度。必要时,例如送给较薄较宽的板坯时,还可配置附加磁铁。在板料运送至压床上之前,还要通过控制装置,这些控制装置主要防止两块板料同时送到压床上。假如同时有两块板坯通过控制装置,此控制装置即借助限制开关而使进给装置停止。
The electromagnet of the electromagnetic device is arranged on both sides and the top of the stack, and the electromagnetic roller is arranged on the right end of the stack. The electromagnets on both sides separate the sheets on the top of the stack from each other. The upper electromagnet lifts it up and grips it and is fed by the solenoid. In general, the electromagnets are arranged at the front of the stack, and the electromagnets arranged at the side of the stack should have the same center line of the magnetic flux as the height of the stack or slightly above the height of the stack. When necessary, for example for thinner and wider slabs, additional magnets can also be provided. Before the sheet is delivered to the press, it is also necessary to pass control devices which prevent the two sheets from being fed to the press at the same time. If at the same time two slabs pass through the control device, the control device stops the feed device by means of the limit switch.