Hot Stamping Machine Flat Support Element
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Solution Overview
Problem
Hot stamping devices often experience impurities during the transfer of fine and delicate structures due to premature detachment of the carrier layer from the substrate, especially in the vicinity of the embossing gap where temperature and pressure conditions change.
Innovation Solution
A hot stamping device with a flat support element positioned between the embossing gap and the detachment device, made of materials with specific hardness and thermal conductivity, such as stainless steel, to provide a stable mechanical counter-bearing for the substrate and prevent premature detachment of the transfer layer, while also aiding in heat dissipation to maintain consistent embossing conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the carrier layer is allowed to detach naturally after embossing, then the transfer layer can be easily removed from the substrate, but impurities occur in the embossing especially with fine and delicate structures
Solution Approach 1:
The support element is positioned in advance between the embossing gap and detachment device to provide continuous support to the substrate during the critical transition zone. This preliminary support prevents premature carrier layer detachment before the substrate has fully exited the embossing area, thereby maintaining embossing quality while still allowing easy transfer layer removal downstream
Solution Approach 2:
The support element acts as an intermediary between the embossing gap and the detachment device. It provides a controlled support surface that prevents direct contact between the carrier layer and the substrate in the transition zone, thereby preventing impurities while maintaining the ability to remove the transfer layer downstream
2Device complexity
If the substrate is supported without additional elements, then the device structure remains simple, but premature detachment of the transfer layer occurs causing impurities
Solution Approach 1:
A flat support element is introduced as an intermediary component between the embossing gap and the detachment device. This support element provides a stable surface that prevents premature carrier layer detachment, thereby improving embossing quality while adding only a single, relatively simple component to the device structure
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 solution effectively prevents impurities by ensuring the transfer layer adheres to the substrate over its entire surface, maintaining the quality of embossed structures and adjusting embossing conditions, thereby reducing defects in fine and delicate structures.
Implementation Method 1
a flat support element for the embossed substrate is arranged directly adjacent to the embossing gap or spaced from the embossing gap by a distance of [0010] The hot embossing device according to the invention has a flat support element which provides the coated substrate with a support surface
Implementation Method 2
it can be provided that the support element is made of stainless steel... due to the high thermal conductivity of stainless steel, excess heat can be advantageously transported out of the embossing gap
Data Source
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AI summary
The invention relates to a hot stamping machine (1), comprising a stamping device (2) for transferring a transfer layer (15u) arranged on a carrier layer (15t) of a hot stamping foil (15) onto a substrate (14). The hot stamping machine comprises a heatable stamping roller (11) and a counter-pressure roller (12) between which is stamping gap (16) is defined, and a downstream releasing device (3) for releasing the carrier layer (15t) from the transfer layer (15u) transferred onto the substrate (14). Between the stamping gap (16) and the releasing device (3) a flat contact element (18) is arranged below the stamped substrate (17), which contact element is directly contiguous to the stamping gap (16) or is spaced apart from the stamping gap (16) by < 1mm or is arranged to overlap the stamping gap (16).