Die-Cut Part Applicator With Punch Head for Tight Bodywork Access
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Solution Overview
Problem
The existing methods for applying die-cut parts to close openings in motor vehicle bodywork are time-consuming and inefficient, particularly in areas difficult to access, as they require frequent movement of robot arms and large equipment setups.
Innovation Solution
An applicator system with a die-cut part strip where the die-cut parts have predetermined breaking points, allowing them to be easily torn and applied to surfaces using a punch and robotic control, reducing the need for extensive robot arm movement and large equipment footprints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a robot arm is used to draw die-cut parts from a die-cut part strip by suction, then die-cut parts can be automatically applied to openings, but the process becomes time-consuming due to frequent robot arm repositioning to the die-cut part roll
Solution Approach 1:
The applicator combines the die-cut part strip with a punch mechanism in a single integrated unit. The die-cut part strip is fed through the punch, and the punch simultaneously applies the die-cut part to the opening and tears it from the carrier layer. This merging eliminates the need for separate robot arm movements to retrieve parts, significantly reducing application time while maintaining automation.
Solution Approach 2:
The die-cut part strip is designed with predetermined breaking points that segment the continuous strip into individual die-cut parts. Each die-cut part can be independently applied to an opening, and the breaking points allow for clean separation from the carrier layer during the punching process. This segmentation enables continuous operation without requiring the robot arm to return to the roll for each part.
2Extent of automation
If a label dispenser with die-cut part roll is used on a robot arm, then die-cut parts can be automatically applied, but the equipment requires a large footprint and cannot access difficult-to-reach areas
Solution Approach 1:
The invention transitions from a horizontal dispensing configuration (label dispenser on robot arm) to a vertical through-punch configuration. The die-cut part strip runs vertically through the punch head, allowing the applicator to operate in a compact vertical space. This dimensional change enables access to difficult-to-reach areas while maintaining automation, as the applicator can be positioned close to the work surface without requiring extensive horizontal movement or space.
3Productivity
If die-cut parts are punched through the carrier layer and adhesive layer to predetermined breaking points, then continuous tearing and application is enabled, but the carrier layer must provide sufficient tear strength
Solution Approach 1:
The carrier layer is designed with varying local properties: the main body of the carrier layer has high tear strength to allow continuous handling and feeding through the punch, while predetermined breaking points have reduced strength to enable clean separation of individual die-cut parts. This local quality differentiation allows the carrier layer to simultaneously provide both continuous feed capability and easy part separation, supporting high productivity without compromising structural integrity during processing.
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
This solution enables efficient and precise application of die-cut parts with minimal space requirements, significantly reducing application time and improving accessibility to hard-to-reach areas by allowing continuous operation without the need for frequent robot arm repositioning.
Implementation Method 1
The die-cut parts have a carrier layer and an adhesive layer applied on one side of the carrier layer
Data Source
AI summary
The invention relates to an applicator for die-cut parts (2), having a die-cut part strip (1) with a longitudinal direction (L) having a carrier layer (3) and an adhesive layer (4), where an outer contour of the die-cut parts (2) is punched through the carrier layer and adhesive layer (3, 4) down to predetertnined breaking points (18) and a die-cut part complement (19) protrudes beyond the die-cut parts (2) continuously laterally to a longitudinal direction (L), and a punch head (8) over which the die-cut part strip (1) runs, where the die-cut parts (2) running over the punch head (8) face away from the punch head (8) by their adhesive layer (4), and the die-cut parts (2) can be pressed by means of the punch head (8) onto a surface (11).