Label Separating Apparatus with Air Draining Vent
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Solution Overview
Problem
Existing label separating systems face challenges in efficiently separating multiple defective labels in a row, as air blasts used for separation can become trapped, preventing effective transfer of defective labels to a collecting substrate, especially when there are three or more adjacent defective labels.
Innovation Solution
A label separating apparatus featuring a primary conveyor with a transport turn-back member, air-blasting members, and a label holding member with an air draining vent, which orients and holds defective labels for transfer to a separate conveyor for defective labels, ensuring all defective labels are transported without air entrapment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If air blasts are applied to multiple adjacent defective labels to force them against the pressure receiving member, then the defective labels can be separated from the continuous substrate, but air becomes trapped between the labels and the pressure receiving member, preventing effective separation and adherence to the collecting substrate
Solution Approach 1:
The label holding member is divided into multiple independent holding portions, each corresponding to a specific column position. This segmentation allows air to be evacuated from each individual holding portion, preventing air entrapment when multiple adjacent labels are processed simultaneously.
Solution Approach 2:
The label holding member acts as an intermediary between the air-blasting mechanism and the pressure receiving member. It provides a controlled interface with evacuation ports that allow air to escape while maintaining label adhesion, solving the air entrapment problem that occurs when labels are directly forced against the pressure receiving member.
2Productivity
If air-blasting members are used to orient and transfer defective labels, then labels can be separated and directed to the defective label conveyor, but air remains trapped in the space between labels and the pressure receiving member, causing separation failure
Solution Approach 1:
The label holding member is designed with evacuation ports that allow air to be removed from the holding portions before labels are adhered. This preliminary air evacuation ensures that when labels are transferred to the collecting substrate, no air pockets remain to prevent proper adhesion, thereby ensuring reliable transfer of multiple adjacent defective labels.
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
The apparatus ensures concurrent and reliable transfer of multiple defective labels from any row to a dedicated conveyor, preventing air entrapment and ensuring successful adherence and transport of defective labels, even when multiple labels are adjacent.
Implementation Method 1
a given number of air-blasting members each adapted to apply a blast of air to a label in each of the columns so that a label peeled off the continuous substrate and found defective is oriented in transport towards the conveyer for defective labels
Implementation Method 2
the label holding member being formed with an air draining vent in a surface including its label holding area... the vent ensuring that air is prevented from entering and staying between the label holding member and a defective label
Data Source
Figure 1A~1C
Figure 2A~2C
Figure 3A~3C
AI summary
The invention relates to a label separating apparatus in which, of labels formed in rows and columns on a continuous substrate being transported along a line of transport, labels found good and labels found defective upon determination of their quality are transported separately. The invention seeks to ensure that all of a plurality of defective labels possibly extant in any one of the rows can concurrently be transferred without fail selectively onto a different line of transport. The apparatus includes a primary conveyer in which a continuous substrate (21A) is transported having labels (22A - 22D), which are spaced apart from each other by a given distance and arranged in rows and columns, formed thereon and peelably adhered thereto. The primary conveyer includes a transport turn-back member (12A) for permitting labels (22A - 22D) for each row concurrently to peel off the continuous substrate (21). In the apparatus, a label peeled off by the transport turn-back member (12A) and found defective is subjected to an air blast by an air-blasting member (15A, 15B, 15C, 15D) and is thereby oriented in transport towards a conveyer for defective labels (14) and adhered to on the conveyer for defective labels (14) while it is held by a label holding member (16) formed with an air draining vent (16C).