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an autosampler

A technology of automatic sample injection and motion mechanism, applied in the direction of instruments, analytical materials, etc., can solve the problems of affecting accuracy, shaking of guide rails and sliders, and the positioning accuracy of the automatic sampler cannot meet the requirements, so as to ensure stability, Smooth running, compact effect

Active Publication Date: 2016-08-03
苏州理瞳精密测量系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some guide rails use ball guide rails, and some use linear guide rails, etc., but no matter what kind of guide rails are used, there will be vibration between the guide rail and the slider in the horizontal movement direction due to the installation gap, resulting in the positioning accuracy of the autosampler. to the requirements, affecting the accuracy of sampling

Method used

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Embodiment Construction

[0042] The details of the present invention can be understood more clearly with reference to the accompanying drawings and the description of specific embodiments of the present invention. However, the specific embodiments of the present invention described here are only for the purpose of explaining the present invention, and should not be construed as limiting the present invention in any way. Under the teaching of the present invention, the skilled person can conceive any possible modification based on the present invention, and these should be regarded as belonging to the scope of the present invention.

[0043] Please refer to figure 1 , figure 2 , image 3 , are respectively the schematic diagram of the overall installation structure of the autosampler of the present invention, the structural schematic diagram of the X-axis and Z-axis motion mechanism, and another structural schematic diagram of the X-axis and Z-axis motion mechanism. First of all, the three-dimensio...

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Abstract

The invention discloses an automatic sample injector, which at least includes a three-dimensional motion system, the three-dimensional motion system includes X-axis, Y-axis and Z-axis motion mechanisms, and the X-axis motion mechanism at least includes: the fixed frame is arranged along the vertical direction It is surrounded by two bases and two optical axes arranged along the horizontal direction; the screw rod is arranged between the two optical axes along the horizontal direction, and the two ends of the screw rod are respectively connected to the two bases; the needle holder seat passes through the inside of the needle holder seat The set nut is matched with the threaded screw of the screw rod, and the two sides of the bottom of the needle holder seat extend outwards to form a protruding part, which is in contact with the two optical axes; the elastic adjustment structure is fixed on the inner side wall of the needle holder seat and It protrudes to one of the two optical axes, and the protruding end of the elastic adjustment structure abuts against the surface of one of the two optical axes. The invention can avoid shaking of the needle holder seat, and has the advantages of stable operation and high positioning accuracy.

Description

technical field [0001] The invention relates to an automatic sample injector, in particular to a three-dimensional motion system of the automatic sample injector, belonging to the technical field of measurement and testing. Background technique [0002] As the liquid phase system is more and more widely used in the fields of biology, chemistry, medicine, petroleum, etc., the sample injector, as the main equipment for sampling the liquid phase system, is more and more popular. At present, the existing injectors can be divided into manual injectors and automatic injectors. Automatic injectors have gradually replaced manual injectors with the advantages of large injection volume, fast injection speed, and high injection accuracy. . However, there are many kinds of movement forms in the movement system of the automatic sampler, most of which adopt the structure of the transmission parts and the guide rails to realize the three-dimensional movement (that is, the three-axis movem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N35/10
Inventor 周国玲王悦王铁军李维森
Owner 苏州理瞳精密测量系统有限公司
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