Cap screwing device

Abstract

The invention relates to the field of biological equipment, in particular to a cap screwing device. The device comprises a cap screwing main shaft capable of rotating around an axis of the cap screwing main shaft; a clamping jaw group is mounted at the end of the cap screwing main shaft; the clamping jaw group comprises a clamping jaw limiting piece and a plurality of clamping jaws; each clamping jaw comprises a clamping part, a mounting fulcrum and a limiting structure which are arranged in sequence; the limiting structures correspond to a cap screwing main shaft section, and the faces, facing the cap screwing main shaft, of the limiting structures are provided with slope face structures; the slope face structures of the clamping jaws in the clamping jaw group jointly form a cone frustum cavity; a clamping jaw control shaft can move in the axial direction of the clamping jaw control shaft, and a control terminal is arranged at the end of the clamping jaw control shaft; and when the position of the control terminal relatives to the similar cone frustum cavity are different, rotation angles of the clamping jaws around the mounting fulcrums are different, and the opening degrees of the clamping parts are different along with the rotation angles of the clamping jaws. The cap screwing device has high precision and stability, and is suitable for cap screwing actions of biological cell culture vessels of various sizes.

Description

technical field [0001] The invention relates to the field of biological equipment, in particular to a cap screwing device. Background technique [0002] During the cell culture process, since the cells need to be provided with fresh culture medium irregularly, it is necessary to unscrew and screw the cover of the cell culture vessel continuously. There is a huge amount of labor in this process, and it is very easy to cause cell loss due to improper force. Therefore, it is necessary to adopt an automated way to realize the cell culture vessel, such as the capping device of the cell factory. [0003] In the prior art, such as the screw cap gripping head disclosed in Chinese patent CN208700535U, the opening of the claws is controlled by a screw rod, but the closing process of the claws requires a spring. At the same time, the claws only rely on the control of the cone during the grabbing process, and cannot correct the wrong operation during the sample delivery process of t...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, such as the cap gripping head disclosed in Chinese patent CN208700535U, the opening of its claws is controlled by a screw rod, but the closing process of its claws needs a spring to realize

At the same time, the claw only relies on the control of the cone during the grabbing process, and cannot correct the wrong operation during the sample delivery process of the uncapped item

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