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法国普洛梅坎(Promecan)公司生产了一种新型的机械传动剪板机(图1)。其主要技术规格:被剪板厚×被剪板宽为4×3100毫米(剪切中碳钢或不锈钢板时为2.5×3100毫米),每分钟行程次数为90。当被剪板宽大于2米时,后挡料架的挡料长度为750毫米,而被剪板宽等于或小于2米时则剪切长度不受限制。机器的主要特点有:(1)采用双层摆梁结构,外梁作为压料梁,内梁作为刀架。内梁支承在外梁两侧臂上,由于内梁和外梁的摆动轴线离下刀刃的距离成一定的比例,因此在剪切过程中压料力始终与剪切力成一定的比例;
Promecan, France, has produced a new type of mechanical transmission shears (Figure 1). Its main technical specifications: Shear thickness × Shear width is 4 × 3100 mm (2.5 × 3100 mm when shearing carbon steel or stainless steel), the number of trips per minute is 90. When the width of the sheared board is more than 2 meters, the length of the backstop is 750 mm, while the width of the sheared board is equal to or less than 2 meters, the shearing length is not limited. The main features of the machine are: (1) double swing beam structure, the outer beam as a material beam, the beam as a turret. The inner beam is supported on both sides of the outer beam by a certain percentage of the distance between the pivot axis of the inner beam and the outer beam from the lower blade. Therefore, the pressing force is always proportional to the shear force during the shearing process.