Roll-Forming Device Speed Differential for Dough Core Stability

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Solution Overview

Problem

Conventional roll-forming devices face issues with mal-forming, fluctuation of the rolled tip position, stagnation of food dough pieces, and difficulty in enhancing production capacity due to unstable resistance and adhesion problems during the rolling process.

Innovation Solution

A device comprising a middle-speed conveyor, a low-speed conveyor, and a high-speed conveyor, where the high-speed conveyor deflects and folds the downstream end of the food dough piece into a recess between the middle-speed and low-speed conveyors, forming a stable rolling core and preventing adhesion, with an adjustment conveyor and camera for precise tip positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional roll-forming device uses resistance against the food dough piece to form a rolling core, then the rolling core is formed, but the resistance varies depending on the food dough piece causing unstable formation and mal-forming

Engineering Contradiction:

Improvestability of rolling core formationVSAvoidformation precision of rolling core

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The patent changes the parameter of conveyor speeds by using three conveyors with different speed levels (high-speed, middle-speed, low-speed). This speed differentiation creates controlled relative motion that replaces the unstable resistance-based rolling core formation with a deterministic speed-differential mechanism, ensuring consistent and reliable rolling core formation regardless of dough piece variations.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent introduces dynamic speed control among multiple conveyors rather than using static resistance. The high-speed conveyor moves faster than the middle-speed and low-speed conveyors, creating dynamic relative motion that actively forms the rolling core through speed differential, providing stable and controllable rolling core formation.

Inventive Principle:

Principle #15Dynamics

2Productivity

If the moving speed of the forming line is increased to enhance production capacity, then productivity increases, but mal-forming occurs increasingly

Engineering Contradiction:

Improveproduction capacityVSAvoidformation precision of rolled food dough

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The patent employs dynamic speed control of multiple conveyors to maintain formation precision at higher production speeds. By adjusting the speed differentials between the high-speed, middle-speed, and low-speed conveyors, the system can adapt to increased throughput requirements while preserving the stability and precision of rolling core formation, thus resolving the trade-off between productivity and manufacturing precision.

Inventive Principle:

Principle #15Dynamics

3Productivity

If the intervals between food dough pieces are decreased to increase production capacity, then productivity increases, but adhesion between dough pieces occurs due to stagnation

Engineering Contradiction:

Improveproduction capacityVSAvoidadhesion between dough pieces

Core Design Contradiction:

ProductivityVSObject-generated harmful factors

Solution Approach 1:

The patent uses dynamic speed control of multiple conveyors to prevent stagnation and adhesion. The coordinated speed differentials ensure continuous forward motion of each dough piece through the forming line, eliminating stagnation zones where adhesion could occur. This allows reduced intervals between dough pieces without causing adhesion problems, thereby increasing productivity.

Inventive Principle:

Principle #15Dynamics

4Device complexity

If a single conveyor speed is used, then device complexity is low, but the position of the rolled tip fluctuates and cannot be precisely controlled

Engineering Contradiction:

Improvenumber of conveyorsVSAvoidposition precision of rolled tip

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The patent introduces dynamic speed control among multiple conveyors to achieve precise rolled tip positioning. By independently controlling the speeds of the high-speed, middle-speed, and low-speed conveyors, the system can precisely control the rolling process and the final position of the rolled tip, achieving high measurement precision despite increased device complexity.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS11819030B2Roll-forming device for food dough piece and roll-forming method therefor

Publication Date: 2023.11.21 RHEON AUTOMATIC MASCH CO LTD

AI summary

A rolled food dough having a good shape is stably produced. The rolled food dough is arranged on a conveyor in an orderly manner. A roll-forming device and method having high production capacity are provided. The downstream end portion PL of the food dough piece P is deflected by a middle-speed conveyor 1 and a high-speed conveyor 3 facing each other in an up-down direction, folded and adhesively pressed between a following low-speed conveyor 2 and the high-speed conveyor 3 to form a rolling core PA, and rolled due to a speed difference between the facing conveyors.