Machine and method for processing a screen printing frame

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Solution Overview

Problem

Current methods for cleaning and preparing screen printing frames are time-consuming, prone to inconsistency, and can lead to quality issues and shortened longevity of screens due to manual use of angle grinders.

Innovation Solution

A machine with a track system and dual grinding assemblies, where the frame is moved along a longitudinal axis, allowing for different grinding patterns to be applied to the frame, ensuring consistent preparation and reducing manual labor.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual angle grinder is used to clean and prepare frames, then the process is simple and requires minimal equipment, but the preparation time is long and productivity is low

Engineering Contradiction:
Improveframes prepared per hourVSAvoidpreparation time per frame
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent replaces the manual mechanical grinding operation with an automated mechanical grinding system. The machine uses a motor-driven grinder that automatically moves along the frame, eliminating the need for manual operation and significantly increasing preparation speed and consistency.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The grinding machine is designed to be self-operating once positioned. The automated grinder moves along the frame independently, performing the cleaning and preparation function without continuous human intervention, thereby reducing labor time and increasing throughput.

Inventive Principle:
Principle #25Self-service

2Manufacturing precision

If manual angle grinder is used by skilled workers, then the process is flexible and adaptable, but the preparation quality is inconsistent due to varying cutting depths

Engineering Contradiction:
Improvegrinding depth consistencyVSAvoidoperational simplicity
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The patent replaces manual control of grinding depth with an automated mechanical system that maintains consistent pressure and grinding depth through controlled mechanical movement along the frame, eliminating human variability in operation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system controls and maintains constant grinding parameters such as pressure, speed, and depth through automated mechanisms, ensuring uniform preparation quality across all frames while simplifying the operational process for users.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If automated grinding machine is implemented, then productivity increases and preparation time decreases, but the device complexity increases

Engineering Contradiction:
Improveframes prepared per hourVSAvoidmachine structure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The grinding machine is divided into modular components including the grinder head, positioning system, and support structure. This segmentation allows for easier manufacturing, maintenance, and operation while achieving high productivity through automated functionality.

Inventive Principle:
Principle #1Segmentation

4Ease of manufacture

If manual frame preparation is performed, then the equipment required is minimal and simple, but the worker skill level must be high to maintain quality

Engineering Contradiction:
Improveequipment simplicityVSAvoidpreparation quality consistency
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent replaces skilled manual labor with an automated mechanical grinding system that inherently provides consistent quality results. The machine embeds the expertise required for quality preparation into its automated control mechanisms, making the process reliable without requiring highly skilled operators.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 machine significantly reduces preparation time to about one to two minutes per frame, ensuring consistency and extending the longevity of screens by automating the cleaning and preparation process.

Implementation Method 1

A basin is below the grinding assembly and is coupled to a vacuum

Methodology Applied
Scientific EffectVacuum suction: Suction

Data Source

PatentUS12108922B2Machine and method for processing a screen printing frame
Publication Date: 2024.10.08 MATRUNOLA DENNIS
  • US12108922B2 patent drawing
  • US12108922B2 patent drawing
  • US12108922B2 patent drawing

AI summary

A machine for processing a screen printing frame includes an upstream end and an opposed downstream end, a grinding assembly located between the upstream and downstream locations, wherein the grinding assembly includes a first grinder configured to grind a first pattern into the screen printing frame and a second grinder configured to grind a second pattern into the screen printing frame different from the first grinding pattern.