Swing Guide Winding Device for Parallel String Placement
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Solution Overview
Problem
Existing winding devices struggle to wind a winding target member in parallel around a drum while maintaining a compact design, particularly when the inlet and drum are positioned close to each other, and the tension of the winding target member fluctuates, requiring adjustments to the biasing unit.
Innovation Solution
A winding device with a first guide portion and a second guide portion, supported by a swing member, guides the winding target member in a skew relationship, using pulleys to facilitate parallel winding, and incorporates a balance weight or inclined pulley configuration to enhance swingability, allowing the inlet to be positioned close to the drum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the inlet and drum are positioned close to each other to achieve a compact design, then the device size is reduced, but the winding target member cannot be wound in parallel due to great fleet angle
Solution Approach 1:
The guide portion is made swingable about an axis perpendicular to the drum axis, allowing it to dynamically adjust its position and angle during operation. This dynamic capability enables the guide to adapt to different winding positions while maintaining compact inlet-drum spacing, resolving the contradiction between compact size and winding parallelism
Solution Approach 2:
The guide portion is configured to swing in a direction substantially perpendicular to the drum axis, utilizing a different spatial dimension for adjustment. This perpendicular swing motion allows the guide to achieve the necessary angular adjustment for parallel winding without increasing the axial distance between inlet and drum
2Manufacturing precision
If a biasing unit is used to maintain swing member position, then winding parallelism is improved, but the spring modulus needs frequent adjustment due to tension fluctuations
Solution Approach 1:
A balance weight is provided on the swing member to counteract the effect of tension fluctuations on the biasing unit. The balance weight creates a counterbalancing moment that compensates for tension variations, allowing the biasing unit to maintain proper swing member positioning without requiring frequent spring modulus adjustments
Solution Approach 2:
The balance weight automatically compensates for tension fluctuations without requiring external intervention or adjustment. The system self-regulates by using the balance weight to counteract tension changes, eliminating the need for manual spring modulus adjustments and reducing operational complexity
3Manufacturing precision
If the swing member is made swingable to follow winding target member motion, then winding parallelism is achieved, but the structure becomes more complex
Solution Approach 1:
The guide portion is designed with swingability about an axis perpendicular to the drum axis, enabling it to dynamically follow the motion of the winding target member. This single degree of freedom swing motion allows the guide to adapt to winding variations while maintaining a relatively simple structural configuration compared to multi-axis adjustment mechanisms
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 winding device achieves parallel winding of the target member regardless of tension fluctuations, enabling a compact design with improved dust and water resistance by positioning the inlet near the drum using a simple structure.
Implementation Method 1
a swing member (60) provided swingably about a first axis (48) arranged substantially perpendicularly to the axis (28) of the body
Implementation Method 2
a balance weight (62) provided on the swing member (60)
Implementation Method 3
The second guide portion (50) is attached to the swing member (60) such that a winding-portion winding target member (92) to be wound around the drum (20) from the second guide portion (50) is substantially parallel with the first axis (48)
Data Source
Figure 1(a)~1(b)
Figure 2
Figure 3
AI summary
[Problem] To provide a winding device configured to wind a winding target member in parallel so that an inlet can be arranged at a position close to a drum and the entirety of the device can be compactified by a simple structure. [Solution] A winding device 10 provided with an inlet 100 for drawing a string-shaped winding target member 90 and configured to wind the winding target member includes: a drum 20 having flanges 24, 26 at both end portions of a body 22 in an axial direction thereof and provided rotatably about an axis 28 of the body; a drive source 30 configured to rotate the drum, a first guide portion 40 configured to draw the winding target member along a first axis 48 arranged substantially perpendicularly to the axis of the body in a skew relationship, a swing member 60 provided swingably about the first axis 48, and a second guide portion 50 attached to a tip end of the swing member to guide the winding target member from the first guide portion to the drum. The second guide portion is attached to the swing member such that a winding-portion winding target member to be wound around the drum is substantially parallel with the first axis.