Wind-Up Drum Rotating Member for Easy Tape Reel Detachment
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Solution Overview
Problem
Conventional wind-up reels face difficulty in detachment due to the fastening of cover tape, making it challenging to remove the reel from the tape wind-up device.
Innovation Solution
A wind-up drum with a tape holding member and a wound member that includes a rotating member, which rotates in contact with the support shaft when detached, allowing easy detachment even when the tape is fastened.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wind-up reel applies tension to wind the cover tape, then the cover tape is wound properly, but the wind-up reel becomes difficult to detach
Solution Approach 1:
The wind-up reel is divided into a reel body and a separate rotating member that can rotate relative to the reel body. This segmentation allows the rotating member to loosen the tape fastening through rotational movement while the reel body remains stable, resolving the contradiction between reliable winding and easy detachment.
Solution Approach 2:
The rotating member is designed to rotate dynamically when the reel is detached, converting the static fastened state into a dynamic loosening action. This dynamic movement enables the tape to be unwound from the fastened state, making detachment easier while maintaining winding reliability during operation.
2Strength
If the cover tape is fastened to the wind-up reel, then the winding is secure, but the detachment process becomes difficult
Solution Approach 1:
By separating the fastening function (reel body holding the tape) from the detachment function (rotating member loosening the tape), the system maintains strong fastening during winding while enabling easy detachment through rotation of the separate member.
Solution Approach 2:
The rotating member acts as an intermediary mechanism between the fastened tape and the detachment action. It mediates the transition from a securely fastened state to a detached state by rotating and loosening the tape through its curved surface interaction with the support shaft.
3Ease of manufacture
If the wind-up drum structure is simple, then the manufacturing is easy, but the detachment function is insufficient
Solution Approach 1:
The simple segmented structure of the reel body and rotating member maintains manufacturing ease while adding the detachment function. The segmentation allows each component to be manufactured independently using simple processes, yet together they provide the sophisticated detachment capability.
Solution Approach 2:
The dynamic rotation of the rotating member adds the detachment function without requiring complex mechanisms. The simple dynamic movement of rotating the member provides the necessary loosening action, maintaining manufacturing simplicity while achieving the desired operational ease.
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 wind-up drum can be easily detached from the support shaft by rotating the rotating member, overcoming the issue of fastened tape hindering removal.
Implementation Method 1
The rotating member rotates in contact with the support shaft when the wind-up drum is detached from the support shaft in a state in which the tape is wound
Data Source
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AI summary
There are provided a wind-up drum that is easily detached in a state in which a wound tape is fastened, a tape feeder including the wind-up drum, and a component mounting machine capable of mounting the tape feeder. A wind-up drum includes a tape holding member including an insertion hole for inserting a support shaft of a rotating device and configured to hold a wound tape, and a wound member attached to the tape holding member, configured to wind up the tape by rotating the support shaft by the rotating device in a state in which the support shaft is mounted, and including a rotating member that rotates in contact with the support shaft when the wound member is detached from the support shaft in a state in which the tape is wound.