链式剖鱼机工艺参数优化试验

为了对6PYL-305型剖鱼机进行优化以提高其剖切质量，以鲢鱼和鳊鱼为研究对象对其关键部件和工艺参数进行了试验，研究喂料撞块位置、鳊鱼夹片安装倾角、鲢鱼出料滑槽高度、刀具类型等因素对剖切质量的影响。试验结果表明：剖切鲢鱼时最佳撞块位置为距离料斗右侧（225±5）mm、剖切鳊鱼时为（160±5）mm；剖切鳊鱼时夹片最佳安装倾角为16°；鲢鱼出料滑槽的最佳高度为65 mm；齿高3 mm的小齿刀盘作为剖切刀盘综合效果最佳，鲢鱼鱼体剖切率可达（83.90±2.31）%，剖切损失率仅为（0.62±0.15）%，鳊鱼的剖切损失率为（0.85±0.28）%，剖切面较光滑，剖切后的鱼体内脏可以很方便地去除。采用优化后的工艺参数，剖鱼机性能以及稳定性得到了良好改善。

Experiment on optimizing technical parameters of fish shearing machine

In order to improve the processing quality of the 6PYL-305 fish shearing machine developed, based on the experiments of the key parts and the technical parameters of the machine, the effects of the collision block of feeding structure, clip angle of fresh-water bream fixing, discharge chute height of the silver carp and cutter type on the processing quality were studied by using the silver carp and fresh-water bream as research objects. The results indicated that the optimal position of the feeding collision block was (225±5) mm from the hopper for silver carp and (160±5) mm for fresh-water bream, the optimal clip angle of fresh-water bream fixing was 16°; The optimal height of discharge chute for silver carp was 65 mm. Cutter with tooth of 3 mm height got a cutting rate of (83.90±2.31)% on silver carp fish while the losing rate of weight was (0.62±0.15)%, and a cutting rate of 100% on the fresh-water bream while the losing rate of weight was (0.85±0.28)%. In general, the cutting surface of both sheared fish was smooth, and the offal can be easily removed for convenience subsequent processing. After optimization, the performance and stability of the machine were improved.