Position Fine Tuning Device for Die Cutting Accuracy

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Solution Overview

Problem

Existing multi-unit die cutting & hot stamping machines suffer from printing accuracy issues due to chain deformation, leading to frequent adjustments and reduced efficiency, as existing positioning devices cannot effectively fine-tune for extension errors and require tedious and inaccurate paper positioning methods.

Innovation Solution

A position fine tuning device with parallel positioning elements on the input and output ends of imprinting elements, utilizing rotating positioning rods with reference surfaces and adjustable gaskets and pins to maintain consistent positioning, counteracting chain deformation errors and simplifying adjustments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a multi-unit die pressing element and aluminum foil control element are employed to accomplish multiple hot stamping and die cutting, then production efficiency is increased and production cycle is shortened, but printing accuracy deteriorates due to chain deformation and error accumulation

Engineering Contradiction:

Improveproduction efficiencyVSAvoidprinting accuracy

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The positioning system is segmented into multiple independent positioning elements (first positioning element, second positioning element, third positioning element) that can be individually adjusted. Each positioning element handles positioning for specific imprinting elements, allowing independent fine-tuning to compensate for chain deformation without affecting the entire system's productivity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention introduces adjustable positioning elements with modifiable parameters (positioning distances, reference surface locations) that can be changed to compensate for chain extension errors. By adjusting the distance between positioning elements and reference surfaces, the system maintains printing accuracy despite chain deformation during prolonged use.

Inventive Principle:

Principle #35Parameter changes

2Device complexity

If existing positioning devices are used without fine tuning capability, then device complexity is reduced, but printing accuracy deteriorates due to inability to compensate for chain extension errors

Engineering Contradiction:

Improvepositioning device simplicityVSAvoidprinting accuracy

Core Design Contradiction:

Device complexityVSManufacturing precision

Solution Approach 1:

The positioning elements are designed with adjustable and modifiable parameters, transforming a static positioning system into a dynamic one. The positioning elements can be fine-tuned during operation to compensate for chain deformation, maintaining accuracy without requiring complex automated systems.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The positioning system enables operators to perform self-adjustment of positioning elements based on observed printing accuracy. The modular design allows easy adjustment of positioning distances and reference surfaces without requiring complex tools or procedures, making the system self-correcting.

Inventive Principle:

Principle #25Self-service

3Manufacturing precision

If frequent adjustments are made to guarantee processing accuracy, then printing accuracy is maintained, but working efficiency deteriorates and labor cost increases

Engineering Contradiction:

Improveprocessing accuracyVSAvoidworking efficiency

Core Design Contradiction:

Manufacturing precisionVSProductivity

Solution Approach 1:

The positioning elements are pre-configured with adjustable parameters that allow for preliminary setup and long-term stability. Once adjusted, the positioning system maintains accuracy for extended periods without requiring frequent interventions, reducing downtime and maintaining high working efficiency.

Inventive Principle:

Principle #10Preliminary action

4Adaptability or versatility

If multiple positioning devices are provided for plural workpieces in a unit, then positioning coverage is improved, but adjustment complexity deteriorates due to need for orderly verification and fine tuning of each device

Engineering Contradiction:

Improvepositioning coverageVSAvoidadjustment complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Multiple positioning elements are designed with identical structures and adjustment mechanisms, making them universal and interchangeable. Each positioning element functions in the same way with the same adjustment procedures, simplifying the adjustment process across multiple workpieces while maintaining comprehensive positioning coverage.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS10836153B2Position fine tuning device used for a unit-type die cutting and hot stamping machine and a working method thereof

Publication Date: 2020.11.17 LIU TIAN SHENG

AI summary

A position fine tuning device for a unit-type die cutting & hot stamping machine includes at least two imprinting elements, wherein paper of the imprinting elements is delivered by the gripper installed on the chain. The present invention is characterized in that a positioning element is disposed on an input end of a first unit imprinting element and a positioning element is disposed on an output end of each imprinting element. Two neighboring positioning elements accomplish the positioning between the two positioning elements together. By providing the fine tuning elements, the accuracy in the art of die cutting & hot stamping can be assured when the machine is performing a multiple-working-position procedure; whereas, by setting up the reference positioning, it assures that the standards of the front and rear positioning are consistent.