Container Safety-Strip Applicator with Cam-Controlled Glue Protection
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Solution Overview
Problem
Existing machines for applying safety strips to containers are prone to soiling of the second pad with glue residues when safety strips are depleted, leading to compromised operation and potential failure in applying the strips to containers.
Innovation Solution
A machine with a cam-based actuation device that includes a sliding guide and a follower roller, connected to a second pad, which prevents the pad from soiling by inhibiting oscillation movements when no safety strip is detected, ensuring reliable operation and preventing glue residue contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the second pad is designed to pick up safety strips from retention heads, then the application function is improved, but the pad becomes soiled with glue residues when safety strips are depleted
Solution Approach 1:
The cam-based actuation device is configured to prevent the second pad from oscillating toward the retention head when no safety strip is present, thereby preliminarily avoiding the harmful action of glue residue contamination before it can occur
Solution Approach 2:
The system uses the presence or absence of safety strips as feedback to control the oscillation movement of the second pad through the cam mechanism, adjusting the pad's position based on whether a strip is available to be picked up
2Productivity
If the second pad performs oscillation movements to pick up safety strips, then the transfer function is improved, but operation reliability deteriorates when strips are depleted
Solution Approach 1:
The cam-based actuation device preliminarily prevents the harmful oscillation movement when safety strips are depleted, avoiding potential damage or malfunction of the second pad by keeping it in a safe position away from the retention head
3Reliability
If the cam-based actuation device prevents pad oscillation when strips are depleted, then reliability is improved, but device complexity increases
Solution Approach 1:
The cam-based actuation device is passively actuated by the natural oscillation of the application assembly, using the existing movement of the system to control the second pad's position without requiring additional active control mechanisms or energy input
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Prevents the second pad from being soiled with glue residues, maintaining reliable operation and ensuring proper application of safety strips to containers, even when the transfer station is depleted.
Implementation Method 1
The second pad (13b) is provided, on its working face, with suction means, preferably constituted by at least one suction port (14), for retaining the second end (4b) of the safety strip (4)
Data Source
AI summary
A machine for applying safety strips to the upper part of containers, includes, along an advancement path of the containers, at least one application station provided with at least one application assembly provided with at least one crimping device which includes a first pad and a second pad. The second paid is functionally connected to a cam-based actuation device which is shaped to impart in sequence to the second pad at least one first oscillation movement and at least one second oscillation movement. The machine also includes a system for detecting the transfer by a transfer station of the safety strips onto the containers and a system for varying the shape of the cam-based actuation device which can be activated on command upon the detection of the lack of transfer of the safety strip to at least one corresponding container.