Label Making Apparatus Transfer Device for Gap-Free Labeling
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Solution Overview
Problem
Conventional label making apparatuses face issues with missing labels after removing defective ones, leading to incomplete label application due to the absence of labels at predetermined intervals, which causes missing sticking during the application process.
Innovation Solution
A label making apparatus with a guide device, inspecting device, transfer device, and collecting device that temporarily sticks non-defective labels at a certain interval on the release liner after detecting and removing defective labels, ensuring continuous and correct label placement without gaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If defective labels are peeled off and removed from the release liner, then defective labels are eliminated from the production stream, but missing labels occur at positions where they should exist with given intervals
Solution Approach 1:
The patent introduces a transfer device that moves labels in a direction substantially perpendicular to the feeding direction of the release liner. This dimensional change allows defective labels to be removed while subsequent labels are transferred to compensate for the gap, maintaining the required interval positioning without disrupting the overall label sequence on the release liner.
Solution Approach 2:
The transfer device acts as an intermediary mechanism between the inspection/peeling station and the final label application. It receives labels from the release liner, holds them temporarily, and transfers them to appropriate positions, thereby mediating the gap creation issue and ensuring continuous proper labeling despite defective label removal.
2Productivity
If the raw sheet is fed continuously after defective label removal, then production speed is maintained, but missing sticking occurs when labels are applied to objects
Solution Approach 1:
The transfer device performs preliminary positioning of subsequent labels before the release liner continues feeding. By advancing or retarding labels in advance through the transfer mechanism, the system prepares for upcoming defective label removals, ensuring that label intervals remain correct and preventing missing sticking during subsequent application processes.
3Manufacturing precision
If non-defective labels are transferred to maintain intervals after defective label detection, then label positioning accuracy is improved, but device complexity increases
Solution Approach 1:
The transfer device is designed to perform multiple functions: it transfers labels perpendicular to the feeding direction, compensates for defective label removals, maintains label intervals, and can advance or retard label positions. This multi-functionality reduces the need for separate mechanisms, thereby limiting the increase in device complexity while achieving precise label positioning.
Data Source
AI summary
The label making apparatus of the invention comprises a guide plate 17 for guiding a raw sheet M in a predetermined feeding direction, an inspecting device 15 for inspecting a label L on a release liner S constituting the raw sheet M, a transfer device 25 for partially bypassing the feeding direction of the release liner to peel off a label from the release liner and temporarily sticking the non-defective label at a position on the release liner advanced toward the downstream side in the feeding direction by a predetermined distance, and a collecting device 22 for collecting a defective when a defective label is detected. The transfer device 25 adjusts the bypass length of the release liner so that a certain interval is kept between the non-defective label after a defective label is detected with respect to the preceding non-defective label.