Cardboard Strip Joining Apparatus for Packaging Cost Reduction
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Solution Overview
Problem
The continuous supply of pre-wound or fan-folded cardboard strips for packaging machines is expensive, posing a significant cost drawback for users.
Innovation Solution
An apparatus that consecutively joins multiple cardboard sheets to form a strip using adhesive application and pressing mechanisms, allowing for the efficient creation of a cardboard strip that can be used with packaging machines, reducing costs by utilizing individual sheets instead of pre-stocked strips.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If pre-wound or fan-folded cardboard strips are used for packaging machines, then the packaging operation can be performed continuously, but the cost is significantly higher
Solution Approach 1:
The invention segments the cardboard strip into individual sheets that are stacked in a magazine. Instead of using a continuous pre-wound strip, the system processes discrete sheets (F1, F2, etc.) that are fed sequentially through the packaging machine. This segmentation allows the use of cheaper individual sheets while maintaining continuous operation through automated stacking and joining mechanisms.
Solution Approach 2:
The invention performs preliminary actions by pre-stacking multiple cardboard sheets in a magazine before the packaging operation begins. The sheets are arranged in advance in the correct sequence and position, allowing the packaging machine to operate continuously without interruption for material loading. The end portions of the sheets are also prepared in advance for joining.
Solution Approach 3:
The invention introduces an intermediary joining mechanism (adhesive application device) that connects individual sheets to form a continuous strip. The adhesive acts as a mediator between separate sheets, creating a functional continuous strip that replaces the need for pre-wound strips while allowing the use of individual cheaper sheets as input material.
2Quantity of substance
If individual cardboard sheets are used instead of pre-stocked strips, then the material cost is reduced, but the complexity of the apparatus increases
Solution Approach 1:
The magazine serves multiple functions: it stores individual sheets, pre-stacks them in sequence, positions their end portions for joining, and feeds them continuously to the packaging mechanism. This multi-functionality reduces the need for separate devices for each operation, thereby limiting the increase in overall apparatus complexity despite the added capability to process individual sheets.
Solution Approach 2:
The invention merges the stacking, positioning, and feeding functions into a single integrated magazine assembly. The joining mechanism is also integrated with the existing packaging machine workflow. By combining multiple functions into unified components rather than adding separate independent devices, the increase in complexity is minimized.
3Quantity of substance
If individual cardboard sheets are joined consecutively to form a strip, then the cost is reduced and flexibility is improved, but the time required for joining increases
Solution Approach 1:
The magazine enables continuous feeding of pre-positioned sheets to the packaging mechanism. The sheets are stacked and positioned in advance, so that as one sheet is being processed, the next sheet is already in position and ready for joining. This eliminates idle time between sheet processing operations, maintaining continuous productive action despite the sequential joining process.
Solution Approach 2:
Multiple sheets are pre-stacked and their end portions are pre-positioned for joining before the packaging operation begins. This preliminary preparation eliminates the need for time-consuming alignment and positioning operations during the actual packaging process, significantly reducing the time penalty associated with joining individual sheets.
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 enables the rapid and effective production of a cardboard strip for packaging machines, reducing operational costs by using individual sheets, which are less expensive than pre-stocked strips, while ensuring a continuous and uniform cardboard strip for packaging operations.
Implementation Method 1
unions, in succession, a plurality of cardboard sheets (C) to one another... application means (5) of an adhesive material, which are cyclically activatable to apply adhesive material on a surface of the end portion (E) of a cardboard sheet (F1)
Implementation Method 2
pressor means (7), which are cyclically activatable between the second support (2) and the third support (3), so as to press the two superposed end portions (E, E2) of the two sheets (F1, F2) to one another
Data Source
AI summary
Apparatus for making a cardboard strip for packaging includes a store for a stack of cardboard sheets, a gripping mechanism for picking up a sheet from the stack and positioning another sheet on a first support for the application of adhesive, and a transfer mechanism for transferring the first sheet to rest on the second support with an end portion having the adhesive projecting towards the store and towards a third support. The third support is disposable in a raised position to raise an end portion of a second sheet coming from the store and in a lowered position to lower the end portion of the second sheet and position it at the end portion of the first sheet. A pressor presses the two superposed end portions of the two sheets to fix the end portions to one another to form a cardboard strip.