Web Winding Apparatus with Rotatable Peripheral Covers
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Solution Overview
Problem
Existing web winding apparatuses are complex and require large-scale transfer devices, making it difficult to safely dismount bobbins filled with winding turns without compromising the continuous transfer of the web.
Innovation Solution
A web winding apparatus with movable cutter, web pressing member, and roller, and independently turnable peripheral covers that allow for safe dismounting of bobbins without moving them, simplifying construction and enabling continuous web transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large-scale transfer device is used to exchange bobbins, then the continuous transfer of the web is maintained, but the apparatus becomes complex and increased in dimension
Solution Approach 1:
The apparatus is divided into two independent working areas: a first working area where the web is wound on a first bobbin, and a second working area where a second bobbin is dismounted. This segmentation allows operations to occur independently in each area, eliminating the need for complex transfer devices while maintaining continuous web transfer.
Solution Approach 2:
The peripheral cover is designed to rotate about the rotational center member, creating a spatial separation between the winding area and the dismounting area. By rotating the cover to a second position, the dismounting area is formed partitioned from the winding area, allowing bobbin exchange without moving the bobbins themselves.
2Productivity
If the member supporting two bobbins is turned to exchange positions, then the empty bobbin can wind the web, but the apparatus is increased in dimension and complicated in construction
Solution Approach 1:
Instead of using a single turnable member to support and exchange two bobbins, the invention segments the apparatus into two independent working areas with separate bobbins. Each bobbin remains fixed on its rotational center member, and the peripheral cover rotation provides the necessary separation for independent operations.
Solution Approach 2:
The peripheral cover is designed to be dynamically rotatable about the rotational center member, transitioning between a first position that covers the first bobbin during winding and a second position that partitions the dismounting area. This dynamic reconfiguration enables efficient bobbin exchange without complex fixed structures.
3Ease of operation
If the peripheral cover is turned to partition areas, then the operator can safely dismount the bobbin, but the cover must be independently turnable adding to mechanism complexity
Solution Approach 1:
The peripheral cover serves multiple functions: it protects the wound web on the first bobbin, can be rotated to create a partitioned dismounting area for safe bobbin removal, and allows the second bobbin to be mounted or dismounted. This multi-functionality reduces the need for separate safety mechanisms.
Solution Approach 2:
The peripheral cover is designed with rotational freedom about the rotational center member, allowing it to dynamically transition between covering the first bobbin and partitioning the dismounting area. This dynamic capability provides operational safety without requiring complex fixed partition structures.
Data Source
AI summary
A web winding apparatus comprises a cutter, a web pressing member and a roller which are movable together between two bobbins supported respectively by two rotational center members. The cutter cuts a web being transferred, the web pressing member presses an end portion of the web cut with the cutter on the bobbin being empty, and the roller transfers the web being transferred to come, toward the bobbins. The apparatus further comprises two peripheral covers independently turnable around the rotational center members and respectively covering parts of outer peripheral surfaces of the webs wound on the two bobbins. Each of the peripheral covers respectively having circumferential openings is turnable selectively to a first position to direct the circumferential opening toward the roller and a second position to partition the bobbin side covered thereby and the roller side.