Automatic salting device for pretreatment of salt powder tube sample

Abstract

The invention discloses an automatic salting device for pretreatment of a salt powder tube sample. The device comprises a storage mechanism, a material blocking mechanism, a rotating mechanism, a leading-in mechanism, a central controller, a rack and salt powder tubes covered and sealed by sealing covers, the lead-in mechanism comprises a recycling barrel and a sample tube set, when the device starts to be used, the mode is similar to the mode of feeding, clamping and loading bullets, the salt powder tubes are loaded into the storage mechanism, the storage mechanism can store a large number ofsalt powder tubes, and automatic feeding of the salt powder tubes is achieved in a rotating mode. After the salt powder tubes enter the rotating mechanism, the material blocking mechanism can be usedfor blocking the next salt powder tube from entering the rotating mechanism, conflict between the upper salt powder tube and the lower salt powder tube is avoided, the rotating mechanism can achieveautomatic uncovering of the salt powder tubes, salt powder of the salt powder tubes is guided out and added into the sample tube, and the poured salt powder tubes and the sealing covers fall into therecycling barrel. According to the scheme, the whole structure is compact, feeding, uncovering, leading-in and recycling are integrated, the automation degree is high, the salt adding efficiency is improved, and progress in the salt adding field is greatly promoted.

Description

technical field [0001] The invention relates to the technical field of experimental instruments, in particular to an automatic salt adding device for pretreatment of salt powder tube samples. Background technique [0002] In the process of laboratory sample pretreatment, the operation of adding salt to the sample tube is frequently used. The traditional way of adding salt is generally that the operator first takes out the salt powder from the salt bucket through the sampling tool, and then puts the salt powder into the sample tube. During this operation, if the sampling tools are not cleaned in time, cross-contamination is likely to occur, and especially when mixing and adding salt to a large number of samples, a lot of manpower and labor intensity are required, which not only increases the cost, but also The work efficiency is not high, the manual operation process is cumbersome, and the error rate is high. [0003] There are some automatic salt adding equipment on the mar...

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Problems solved by technology

[0002] In the process of laboratory sample pretreatment, the operation of adding salt to the sample tube is frequently used. The traditional way of adding salt is generally that the operator first takes out the salt powder from the salt bucket through the sampling tool, and then puts the salt powder into the sample tube. During this operation, if the sampling tools are not cleaned in time, cross-contamination is likely to occur, and especially when mixing and adding salt to a large number of samples, a lot of manpower and labor intensity are required, which not only increases the cost, but also The work efficiency is not high, the manual operation process is cumbersome, and the error rate is high

[0003] There are some automatic salt adding equipment on the market instead of manually adding salt to the sample tube. Only need to add salt powder at the opening of the salt bucket in advance, and vibrate or rotate at the outlet to realize automatic salt powder addition. The following questions:

[0004] As we all know, salt powder is hygroscopic. When you need to add salt to the salt tank and open the outlet of the salt adding equipment, the air will also enter the salt tank through the outlet, causing the salt powder in the salt tank to absorb moisture in the air and then agglomerate. If it is serious, it will cause the outlet of the salt adding device to be blocked, resulting in a high failure rate of this type of salt adding equipment and a low salt adding accuracy; in addition, the salt bucket, each guide channel in the salt bucket, and the outlet are prone to overflow salt powder due to pressure , causing pollution and corrosion of other parts inside the equipment, therefore, this type of salt adding equipment also needs to ensure a high degree of sealing, and has higher requirements for production standards

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