In this paper, the development process of BOPF technology was described, the tubular film stretching method and planar biaxial stretching method were compared, several types of one-step biaxial stretching equipment were introduced, and the prospect of the development of biaxial stretching was given.

The unique design for a novel 3-DOF hybrid mechanism is proposed in this paper. The 3D modeling of the structure is constructed with Pro/E., kinematics and dynamics simulation by ADAMS software, which can provide a theoretical base for the optimal design and application of the mechanism. This novel 3-DOF hybrid mechanism is suitable for the industrial, agriculture and service applications in which the requirements for simple structure, high stiffness, and large workspace.

With the dual relationship between parallel mechanism and serial mechanism on the structure and performance characteristics, the emergence of parallel mechanism, expand the areas of application of the robot. In this paper, a survey on the origin, main characteristics, field of application, and theoretical research of parallel manipulators are reviewed. Finally, some important problems of the parallel manipulator are mentioned to be solved.

This paper introduces the basic principle, the compost system design requirements, and to introduce biodegradable composting system and design. At the same time design the structure and layout of a small biodegradable compost pool. Base on introducing the small turning device to complete a small spiral turning device of the mechanical system design.

The unique design for a novel 3-DOF hybrid mechanism is investigated in this paper. According to the feature of the hybrid mechanism, its kinematics is resolved in detail. And the shape of the workspace is described, which can provide theoretical base for the optimal design and application of the mechanism. This novel 3-DOF hybrid mechanism is suitable for the industrial, agriculture and service applications in which the requirements for simple structure, high stiffness, and large workspace.