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High-throughput reagent dispenser design

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Dan Wang
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The invention relates to a vertical surface oblique belt drive feed and discharge device for solid piling orifice plate culture medium split charging instruments and belongs to the technical field of culture medium split charging equipment. The device comprises a base, a drive device, a orifice plate box, a first support block, a second support block, a first drive shaft, a second drive shaft, a first driven shaft, a second driven shaft, a first transmission mechanism, a second transmission mechanism, a third transmission mechanism and a fourth transmission mechanism. An orifice plate feed and discharge function is comprehensively achieved by the drive device, a vertical surface oblique belt drive mechanism, two support blocks, the orifice plate box and the like. A first movable block and a second block are driven to act in a cooperative manner through the transmission mechanisms and by the drive device, and feed and discharge of bottom orifice plates are achieved. The device is applicable to a culture medium split charging instrument, good in compatibility, capable of operating orifice plates of different specifications, simple in mechanical structure, low in machining precision and mounting precision requirements, simple in control system and high in space utilization rate, only one control drive device is needed, and solid piling of the orifice plates in the orifice plate box is achieved.
Dan Wang
added 3 research items
Traditional stackers for reagent dispensers are complex and cumbersome in structure since the transmission systems in the chambers are as tall as the chambers storing separated microplates. This paper designed a novel close-packing stacker system with function of elevating and separating of microplates, called DSE stacker. The DSE stacker is driven by two motors, and can manipulate close-packed microplates one by one in a tall chamber. The DSE stacker consists of two symmetrical screws, two stepper motors, a chamber, a carrier and transmissions. In a DSE output stacker, the lowest microplate can be extracted, separated from upper microplates and then transferred automatically to a carrier under the chamber. In a DSE input stacker, the process is reversed. This paper gives framework on kinematics and dynamics of the DSE stacker system in detail. The results of analyses show that the stacker system is valid.
Traditional stackers for reagent dispensers are complex and cumbersome in structure since the transmission systems in the chambers are as tall as the chambers storing separated microplates. This paper designs a novel close-packing stacker system with function of elevating and separating of microplates, called DSE stacker. The DSE stacker, driven by two motors, can manipulate close-packed microplates one by one in a tall chamber. The DSE stacker consists of two symmetrical screws, two stepper motors, a chamber, a carrier, and transmissions. In a DSE output stacker, the lowest microplate can be extracted, separated from upper microplates and then transferred automatically to a carrier under the chamber. In a DSE input stacker, the process is reversed. This paper gives framework on kinematics of the DSE stacker system in detail. The results of analyses show that the stacker system is valid.
Traditional fingers have some fatal shortcomings that limit their wide application. For example, although coupled finger is humanoid and good at pinching, it can't rotate according to the shapes and sizes of objects. Self-adaptive finger can grasp objects flexibly but it moves rigidly and fails to pinch small targets. A novel grasping model, coupled and indirectly self-adaptive (CISA) grasping model, is proposed, which combines the advantages of the coupled and self-adaptive finger. A typical CISA grasping process is composed of two steps, coupled grasping and indirectly self-adaptive grasping. A CISA hand with linkage-slider, called CISA-LS hand, is designed based on the CISA grasping model, consisting of 1 palm, 5 CISA-LS fingers and 14 DOFs (degrees of freedom). This paper gives analyses on kinematics and dynamics of the CISA-LS finger in detail. Force analysis of the 2-joint CISA-LS finger is also introduced. Many grasping experiments demonstrate the validation of the CISA-LS hand.