【摘要】 针对人造板饰面卷材在裁切过程中的精度和效率问题，设计了一种基于曲柄滑块机构的卷材裁切装置，并对其性能进行了研究。通过分析裁切装置的工作原理与动力传递需求，选用偏心轮作为曲柄，并采用刚体动力学仿真验证机构的运动可行性。同时，采用显式动力学仿真对裁切过程进行模拟，重点分析卷材的应力、应变及剪切力分布情况。仿真结果表明，上裁切刀的速度-时间与位移-时间曲线与理论需求一致，运动轨迹平稳；裁切区域的等效应力最大值为10 MPa,等效应变最大值为0.083,最大剪切应力达到5.77 MPa,接近材料剪切屈服强度，成功实现材料剪切破坏。仿真结果验证了裁切装置的设计合理性和性能可靠性，为提升人造板饰面卷材的裁切效率和精度提供了技术支持，并为类似裁切装置的优化设计提供了重要参考。更多还原

【Abstract】 To address the issues of precision and efficiency in the cutting process of wood-based panel decorative rolls, this study designed a roll cutting device based on a crank-slider mechanism and analyzed its performance. The working principle and power transmission requirements of the cutting device were evaluated, with an eccentric wheel selected as the crank. Rigid-body dynamics simulations were conducted to verify the feasibility of the mechanism’s motion. Additionally, explicit dynamic simulations were performed to model the cutting process, focusing on the stress, strain, and shear force distribution in the roll material. The simulation results demonstrate that the speed-time and displacement-time curves of the upper cutter were consistent with theoretical requirements, and the motion trajectory was stable. In the cutting region, the maximum equivalent stress reached 10 MPa, the maximum equivalent strain was 0.083, and the maximum shear stress was 5.77 MPa, approaching the material’s shear yield strength and successfully achieving material shearing. The results verify the rationality of the cutting device design and the reliability of its performance, providing technical support for improving the cutting efficiency and precision of wood-based panel decorative rolls and offering valuable references for the optimization of similar cutting devices.更多还原