Textile Edge Binding Using Segmented Tape and Heat Sealing
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Solution Overview
Problem
Existing methods for edge binding in textile production are limited by the need for continuous edge binding and rounded corners, which reduce production rate and increase equipment complexity.
Innovation Solution
An apparatus and method for edge binding that attach individual strips of binding tape to the edges of textile products, overlapping at corners, allowing for linear motion processing and heat sealing to close open ends, thereby simplifying the production process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous edge binding with rounded corners is applied, then quality and durability are improved, but production rate decreases and equipment complexity increases
Solution Approach 1:
The continuous binding tape is divided into separate segments that are applied to individual edges of the textile product. Each segment is applied independently using a linear motion path, eliminating the need for rounded corners and continuous motion around the entire perimeter. This segmentation allows for simpler, faster application while maintaining binding quality at each edge.
Solution Approach 2:
Instead of forming rounded corners to enable continuous binding tape application, the invention inverts the approach by applying straight-edged binding segments to straight edges with linear motion. The corner regions are handled separately by overlapping or adjacent placement of segments, eliminating the need for complex curved path motion and rounded corner formation.
2Reliability
If continuous edge binding with rounded corners is applied, then quality and durability are improved, but device complexity increases
Solution Approach 1:
The binding application device is segmented into multiple independent units, each responsible for applying binding tape to a specific edge. Each unit operates with simple linear motion along its designated edge, eliminating the need for a single complex device that must navigate rounded corners and continuous paths around the entire product perimeter.
Solution Approach 2:
The device transitions from a static, complex rounded-corner-navigation system to a dynamic array of simple linear-motion units. Each binding application unit can be independently positioned and operated along straight edges, providing flexibility and simplicity while maintaining the ability to handle various product sizes and shapes.
3Manufacturing precision
If automated production with rotation is implemented, then consistency of quality is improved, but production rate decreases and equipment complexity increases
Solution Approach 1:
Instead of rotating the textile product to access all edges with a stationary binding device, the invention inverts the approach by moving multiple binding application units along linear paths to reach each edge. This eliminates the need for product rotation, allowing for faster, continuous linear motion application while maintaining consistent quality through automated positioning of each segment.
4Manufacturing precision
If high-accuracy positioning is required for corner finishing, then quality of finish is improved, but equipment complexity increases and production rate decreases
Solution Approach 1:
The corner finishing operation is segmented and integrated into the edge binding process. Each corner region is handled by the adjacent edge binding segments that overlap or meet at the corner, eliminating the need for a separate, high-precision corner finishing device. The binding segments themselves provide the finishing function through their placement and attachment at the corner regions.
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
This approach increases production rate, reduces equipment complexity, and ensures a high-quality finish with aesthetically appealing edges.
Implementation Method 1
The corner finishing device is operable to apply a heat seal to the end portion at the corner and cut the end portion at the heat seal to close the binding tape at the corner
Data Source
Figure 1~3A
Figure 3B~3E
Figure 3F~4
AI summary
A control device in an apparatus for edge binding a textile work product is operatively connected to a corner finishing device (40). The textile work product has a perimeter comprising first and second edges that meet at a corner (2c) at approximately right angles. A binding tape (3) is folded around and attached to the second edge so that an end portion (5) of the binding tape projects beyond the corner in a direction of the second edge. The control device implements a control method comprising: arranging the textile work product with the end portion (5) extending through a heat sealing unit, HSU, (42) of the corner finishing device (40); operating the HSU (42) to form a slot with the end portion (5) extending through the slot, a height of said slot being smaller than a thickness of the binding tape on the second edge; pulling the end portion (5) through the slot to drive the corner (2c) towards the slot; and operating the HSU (42) to apply a heat seal to the end portion (5) at the corner (2c) and cut the end portion (5) at the heat seal to close the binding tape (3) at the corner (2c).