Assembly for measuring torque and/or axial load for capping heads

Abstract

The present invention relates to an assembly (10) for measuring torque and / or axial load for capping heads, comprising a containing body (11), at least one torque sensor (12) and / or at least one load sensor (13) housed within the containing body (11), and interface means (20) adapted to connect a capping head (50) with the containing body (11), such interface means (20) being coupled to the at least one torque sensor (12) and / or to the at least one load sensor (13) in a manner which is suitable to transfer a torque applied on the interface means (20) to the at least one torque sensor (12) and / or to transfer a load applied on the interface means (20) to the at least one load sensor (13), characterised in that the interface means (20) comprise at least a first part (21), which is fixedly constrained to the capping head (50) in such a way that the first part (21) is brought into rotation and / or translation by the capping head (50), and a second part (22), which is coupled to the at least one torque sensor (12) for transferring a torque thereto and / or to the at least one load sensor (13) for transferring a load thereto, which torque and / or load are applied by the first part (21) of the interface means (20) to the second part (22) of the interface means (20), wherein the first part (21) of the interface means (20) is suitable to transfer a torque to the second part (22) of the interface means (20) in the absence of a reciprocal contact.

Description

technical field [0001] The present invention relates to an assembly for measuring the torque and / or axial load of a capping head, usually used for applying caps on containers or bottles. More specifically, the present invention relates to an assembly for measuring the tightening torque and the axial load applied by the capping head as it applies a cap to a container. Background technique [0002] A capping head is a device that tightly seals a cap or a stopper on, for example, the mouth of a container or bottle for edible products such as beverages. To this end, they include gripping means arranged to engage the cap, which is then transferred to the corresponding container neck and exerts a rotational and / or axial force on said cap, screwing it into the The threaded portion of the neck until it reaches the tightened state. [0003] In the case of tightening, the capping head continues to apply torque until a torque threshold corresponding to the set tightening torque is re...

AI Technical Summary

Problems solved by technology

[0009] Furthermore, the Applicant has recognized that misalignment of these two motions can lead to spurious rotational moments, which can cause measurement errors of the static type (offset) or of the dynamic type, where the latter is due to rotational periodicity

In addition, the combination of the rotational component and the longitudinal component of the axial load leads to measurement anomalies due to the superposition of the measurement of physical quantities with positioning and setting errors

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