A filling machine with liquid filling bottle cap screwing quality detection

By combining dual monitoring of resistance wire and pressure sensor with laser measuring instrument, and using electromagnet clamping and positioning, the problem of not being able to fully assess the quality of bottle caps during the capping process of liquid filling machines has been solved. This has enabled efficient and accurate capping detection, reduced product defect rate and improved production efficiency.

CN122324740APending Publication Date: 2026-07-03SHANGHAI JUNYAO MEDICAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-30
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing liquid filling machines cannot comprehensively and accurately assess the capping quality during the capping process, especially failing to take into account key parameters such as capping distance and rotation torque, resulting in a high product defect rate.

Method used

Employing a dual monitoring mechanism of resistance wire and pressure sensor, combined with the use of laser measuring instrument and electromagnet, it achieves precise measurement of the cap's downward movement distance and reaction force. By controlling the rotation angle and torque with a motor, and combining the clamping and positioning with the electromagnet, it ensures accurate alignment between the bottle and the cap detection component.

Benefits of technology

It enables comprehensive and accurate assessment of bottle cap screw cap quality, reduces product defect rate, improves production efficiency and product quality stability, adapts to the rapid replacement of bottle caps of different diameters, and reduces waiting time.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a filling machine with capping quality detection for liquid filling bottles, specifically relating to the field of capping measurement technology. It includes a conveying device, a filling machine unit, and a capping worktable. Two electric push rods are installed at the bottom of the capping worktable, and capping detection components are installed at the telescopic ends of both electric push rods. Two sets of measuring clamping components are installed at the top of the conveying device, and a bottle is placed on top of the conveying device. A laser measuring instrument can monitor the bottle's position information in real time and transmit the data to the control system. The control system matches the corresponding capping detection components according to the bottle specifications. If there is a slight deviation in the bottle's position, an electromagnet is used to magnetically attract both sides of the bottle neck. Furthermore, the electromagnet uses magnetic attraction to clamp the cap through an iron connecting seat, enabling rapid adsorption and release, adapting to caps of different diameters without the need to change clamps, greatly shortening the adjustment time when changing cap specifications.
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