Method for detecting opening and closing force of shell cover of pneumatic sample feeding shell

Abstract

The invention discloses a method for detecting the opening and closing force of a shell cover of a pneumatic sample feeding shell and belongs to the field of detection of the opening and closing force of pneumatic feeding shell covers. Lower calipers, upper calipers and a base plate are arranged outside the same side wall of a box body of an opening and closing device; a handle is lifted and pressed to drive a cover opening stress column or a cover closing stress column and accordingly the upper calipers ascend and descend to achieve the cover opening and cover closing; a pressure sensor is fixed in an insertion hole formed in an internal connecting plate and is in contact with the insertion end of the cover opening stress column; the pressure sensor is connected with a force measuring control box; the force measuring control box comprises a single chip microcomputer, a display module, a signal maintaining circuit module, an A / D (Analog to Digital) conversion module, an alarm module, an external crystal oscillator and reset module and a starting circuit module. According to the method for detecting the opening and closing force of the shell cover of the pneumatic sample feeding shell, the low-cost transient peak signal collection and processing display can be achieved through the single chip microcomputer, the problems that the size of the opening and closing force of the existing sample feeding shell cover and the existing sample feeding shell body cannot be controlled and accordingly samples are easy to lose in the process of pneumatic sample feeding are solved, and the reliability of quality management is improved.

Description

[0001] The patent application of the present invention is a divisional application with the application number: 2012103518009. The filing date of the original application is: 2012-09-21. The name of the invention is: a shell cover opening force detection system and detection system for pneumatic sample delivery shells. method. technical field [0002] The invention belongs to the technical field of detecting the opening and closing force of the shell cover in the pneumatic sample delivery system of a steelmaking plant, and more specifically relates to a detection method for the opening and closing force of the shell cover of the pneumatic sample delivery system, especially suitable for snap-fit ​​pneumatic sample delivery The opening and closing force detection of shells. Background technique [0003] At present, during the testing and sampling process of molten steel in a steelmaking plant, the staff need to put the steel sample slag sample collected when the smelting is ab...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the problem in the prior art that the opening and closing force of the sample delivery shell cover cannot be detected and sensed, resulting in the easy loss of the sample in the sample delivery shell, and provides a method for detecting the opening and closing force of the pneumatic sample delivery shell cover , through the technical scheme of the present invention to collect the maximum value of the capping force of the air-driven sample delivery projectile, the timely detection and display of the sample delivery projectile cap opening force can be realized, thereby avoiding the occurrence of sample loss accidents in the sample delivery projectile to the greatest extent

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