Tape Auto-Loading Device Curved Bonding
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Solution Overview
Problem
In tape auto-loading devices, the non-adhesive sections at the distal ends of the cover tape and temporary tape can cause components to fall off due to upward movement, especially when the tapes are bonded with flat surfaces and angled relative to each other, leading to interference with the component pickup head.
Innovation Solution
The device includes a linking device with a tape support member and a heating member that pinches and heat-bonds the overlapping distal ends of the cover tape and temporary tape, forming a bent shape along the tape's longitudinal direction to prevent upward movement of the non-adhesive sections by applying tension and stretching them into a straight line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the cover tape and temporary tape are bonded with flat surfaces at an angle, then the bonding process is simple, but the non-adhesive sections rise upward causing components to fall off
Solution Approach 1:
The patent applies curvature by forming the bonding portion into an arc shape rather than a flat surface. The cover tape and temporary tape are bonded along a curved path with a predetermined radius, which prevents the non-adhesive sections from rising upward and interfering with the component pickup head, thereby resolving the reliability issue while maintaining manufacturing simplicity
Solution Approach 2:
The patent applies local quality by creating a specific arc-shaped bonding region with controlled geometry. The bonding portion has a predetermined radius of curvature that is optimized to prevent upward movement of non-adhesive sections, while the rest of the tape structure remains unchanged, allowing localized improvement without affecting the entire system
2Stability of the object's composition
If the tapes are bonded in a straight line, then the non-adhesive sections remain stable, but the bonding portion must be longer increasing device size
Solution Approach 1:
The patent uses a curved bonding path with a predetermined radius to achieve stability of the non-adhesive sections in a more compact space. The arc-shaped bonding portion prevents upward movement of non-adhesive sections while requiring less length compared to a straight-line bonding approach, thus resolving the contradiction between stability and device size
3Ease of operation
If the heating member and tape retaining member are flat surfaces, then the bonding process is straightforward, but the tapes cannot be properly stretched to prevent upward movement
Solution Approach 1:
The patent modifies the heating member and/or tape retaining member to have a curved surface corresponding to the arc-shaped bonding path. This curved configuration allows the tapes to be properly stretched and positioned along the arc, preventing upward movement of non-adhesive sections while maintaining a straightforward bonding operation through the curved geometry
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 configuration effectively prevents the non-adhesive sections from rising, reducing the risk of component loss and enhancing operational efficiency by maintaining the tapes in a stable position during the loading process.
Implementation Method 1
a heating member configured to heat-bond the cover tape and the temporary tape together by pinching a predetermined portion where the distal end portion of the cover tape and the temporary tape overlap each other
Data Source
AI summary
A tape auto-loading device for loading a carrier tape including a cover tape gripping device configured to grip a distal end of the cover tape which is peeled off from the base tape, a linking device configured to link the temporary tape held by the temporary tape laying device to a distal end portion of the cover tape gripped by the cover tape gripping device, and a transfer device configured to transfer the temporary tape linked to the distal end portion of the cover tape from the temporary tape laying device to the tape feeder. The linking device includes a tape support member and a heating member each having respective shapes for pinching the predetermined portion in such a state of the predetermined portion being bent at a halfway position along a length in a tape's longitudinal direction.