Three-Layer Tape Splicing Using an Integrated Cut-and-Slip Unit
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Solution Overview
Problem
Existing splicing machines for three-layer tapes in plaster manufacturing are unable to automatically apply adhesive splicing elements on the central layer, requiring manual intervention and machine stoppage during reel changes.
Innovation Solution
A method and apparatus that utilize a cut-and-slip unit to automatically splice the central layer of three-layer tapes by applying a splicing element made of the same material as the wound pads, integrating this function into the existing cut-and-slip unit to maintain continuous production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If existing splicers are used to splice three-layer tapes, then the outer layers can be spliced automatically, but the central layer cannot be spliced automatically and requires manual intervention
Solution Approach 1:
The splicing process is segmented into two distinct operations: splicing the outer layers (performed by existing splicers) and splicing the central layer (performed by the cut-and-slip unit). This segmentation allows each component to specialize in its specific task, enabling full automation while maintaining operational simplicity for each individual function.
Solution Approach 2:
The cut-and-slip unit, originally designed for cutting and slipping wound pads, is made multi-functional by adding the capability to splice the central layer of the tape. This universality eliminates the need for a separate dedicated splicing device for the central layer, achieving full automation without increasing overall system complexity.
2Extent of automation
If a separate splicing unit is added to splice the central layer, then automatic splicing of all layers is achieved, but the device complexity and dimensions increase
Solution Approach 1:
The cut-and-slip unit is designed to perform multiple functions: cutting the tape, slipping the wound pads, and splicing the central layer. By making this existing unit multi-functional, the patent avoids adding a separate dedicated splicing unit, thereby maintaining device simplicity while achieving complete automation.
Solution Approach 2:
The splicing function for the central layer is merged with the existing cut-and-slip operations. The splicing element is applied and bonded in the same operational sequence as the cutting and slipping processes, combining multiple functions into a single integrated unit rather than using separate devices.
3Device complexity
If manual splicing is performed during reel changes, then the machine can be simple, but production stops during splicing operations
Solution Approach 1:
The automatic splicing system ensures continuous production by eliminating stoppages during reel changes. The cut-and-slip unit splices the central layer automatically as the tape progresses through the machine, maintaining the continuous flow of material and preventing production interruptions that would occur with manual splicing.
Solution Approach 2:
The system performs self-service splicing of the central layer through the cut-and-slip unit, which automatically applies and bonds the splicing element without requiring operator intervention. This self-automated process maintains continuous production while keeping the device complexity manageable.
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
Enables automatic splicing of three-layer tapes without stopping the manufacturing machine, reducing costs and apparatus dimensions by eliminating the need for a separate splicing unit.
Implementation Method 1
a) applying a splicing element having an adhesive surface on adhesive surfaces of tail and head portions
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A method for automatically splicing two continuous three-layer tapes (28), wherein a longitudinally movable continuous wound tape (48) is transversely cut so as to form individual wound pads (16) which are applied in longitudinally spaced positions on adhesive surfaces (32) of continuous carrier foils (30), and wherein a splicing element (70) is cut from the continuous wound tape (48) and is applied on tail and head portions (30', 30") of two continuous carrier foils (30).