Rotating Compensating Plate Hook Mechanism for Foil Stamping Setup

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Solution Overview

Problem

Existing hot foil stamping presses require significant space for setup due to the need to remove and reposition the supporting plate, which is particularly problematic for cross-foil stamping presses with space constraints.

Innovation Solution

A hot foil stamping press design featuring a rotatably attached compensating plate and a hook element with a fixation axle, allowing the top part of the supporting plate to be secured in a makeready position without vertical alignment, optimizing space usage and enabling easy access for operators.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the supporting plate is completely removed from the platen press to allow the top plate to be lifted to a vertical position during makeready sheet installation, then the operator can access the platen press for setup, but the space requirements in front of the platen press increase significantly

Engineering Contradiction:
Improveaccess to platen press for setupVSAvoidspace in front of platen press
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The supporting plate is divided into two separate parts: a base plate that remains fixed on the platen press, and a compensating plate that can be independently removed and repositioned. This segmentation allows the compensating plate to be stored in a compact position near the platen press without requiring significant front space, while still enabling full access to the platen press during makeready sheet installation

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of positioning the compensating plate in a vertical orientation that extends forward from the platen press, the invention repositions it in a horizontal plane adjacent to the platen press. This dimensional change allows the compensating plate to be stored in a space-efficient manner while maintaining easy accessibility during setup operations

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Ease of operation

If the top plate (compensating plate) is kept in a vertical position during makeready sheet installation, then the setup procedure is simplified, but the space requirements and mechanical stress on the plate increase

Engineering Contradiction:
Improvesetup procedure simplicityVSAvoidmechanical stress on compensating plate
Core Design Contradiction:
Ease of operationVSForce

Solution Approach 1:

The compensating plate is designed with rotational capability, allowing it to dynamically transition between different positions (horizontal storage position and vertical operational position). This dynamic design enables the plate to be easily rotated into the correct orientation for makeready sheet installation without requiring excessive lifting force or creating high mechanical stress, while still simplifying the setup procedure

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4112306B1Hot foil stamping press
Publication Date: 2025.03.26 BOBST MEX SA
  • EP4112306B1 patent drawingFigure 1~2
  • EP4112306B1 patent drawingFigure 3
  • EP4112306B1 patent drawingFigure 4~6

AI summary

A hot foil stamping press (10) comprises a platen press (16), with a supporting plate (22) comprising a base plate (26) and a compensating plate (28) being rotatably attached to the base plate (26) for switching between an operating position and a makeready position and a hook element (38) comprising a base part and a top part being arranged at an angle relative to the base part. The hook element (38) is rotatably attached to a door (30) of the platen press (16) by a fixation axle for switching between a releasing position and a securing position of the hook element, wherein the top part retains the compensating plate (28) in its makeready position when the hook element (38) is in its securing position.