Automated Twisted Bun Production via Robot Arm and Winding Tool

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Solution Overview

Problem

The bakery industry faces inefficiencies in producing twisted bakery buns due to the complexity of the manual process, which is time-consuming and expensive.

Innovation Solution

An automated system comprising a robot arm and a winding tool with protrusions, which transports and twists dough strips on a conveyor belt, allowing for efficient and precise production of twisted buns.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If manual handling is used for producing twisted bakery buns, then flexibility and adaptability are maintained, but time consumption and production cost increase significantly

Engineering Contradiction:
Improveproduction speedVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The automated system divides the twisted bun production process into distinct operational segments: dough strip transport by conveyor belt, winding operation by winding tool, twisting operation by robot arm, and stacking by stacking device. Each component performs a specific function, enabling automated production while maintaining manageable system complexity through functional decomposition.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces intermediary components that facilitate automated operations: the conveyor belt acts as an intermediary for transporting dough strips between stations, the winding tool serves as an intermediary for forming the bun shape, and the robot arm serves as an intermediary for applying the twisting operation. These intermediaries enable automation without requiring direct manual intervention.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Extent of automation

If manual handling is used for producing twisted bakery buns, then operational flexibility is maintained, but labor cost and time consumption increase

Engineering Contradiction:
Improveautomation levelVSAvoidoperational simplicity
Core Design Contradiction:
Extent of automationVSEase of operation

Solution Approach 1:

The automated system performs self-service operations where the conveyor belt automatically transports dough strips, the winding tool automatically forms the bun shape, and the robot arm automatically applies the twisting operation. The stacking device automatically stacks completed buns, eliminating the need for manual intervention in each operation and maintaining ease of operation through automated self-service.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The robot arm serves multiple functions: it transports dough strips, applies the twisting operation, and positions components during assembly. The conveyor belt handles both transport and positioning functions. This multi-functionality reduces the number of separate components needed, maintaining operational simplicity while increasing automation level.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Productivity

If automated system is implemented for producing twisted bakery buns, then productivity and efficiency increase, but initial investment and system complexity increase

Engineering Contradiction:
Improveproduction volumeVSAvoidsystem structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent merges multiple functions into integrated components: the winding tool combines the forming operation with positioning, the robot arm integrates twisting with transport, and the stacking device combines stacking with positioning. This merging reduces the total number of separate components and simplifies the overall system structure while maintaining high productivity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The conveyor belt maintains a consistent transport level throughout the production process, and all operational stations are positioned at compatible heights for seamless material transfer. This equipotentiality simplifies the system structure by eliminating the need for complex elevation mechanisms while enabling continuous automated production.

Inventive Principle:
Principle #12Equipotentiality

4Loss of time

If manual handling is used for producing twisted bakery buns, then adaptability to variations is maintained, but time consumption increases

Engineering Contradiction:
Improveproduction timeVSAvoidautomation mechanism
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The conveyor belt operates continuously to transport dough strips through all production stations without interruption. The winding tool and robot arm operate in continuous sequence without idle time between operations. This continuity eliminates downtime and waiting periods, significantly reducing production time while the modular design keeps the automation mechanism manageable.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The system performs preliminary actions in advance: dough strips are transported and positioned by the conveyor belt before reaching the winding station, the winding tool pre-forms the bun shape before twisting, and components are pre-positioned for the stacking operation. This preliminary action eliminates delays and waiting time, reducing overall production time while maintaining reasonable automation complexity.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4563000A1System and method for automated production of twisted bakery buns
Publication Date: 2025.06.04 DANMATIC AUTOMATED BAKERY SYST
  • EP4563000A1 patent drawingFigure 1a~1b
  • EP4563000A1 patent drawingFigure 2
  • EP4563000A1 patent drawingFigure 3

AI summary

The present invention relates to a system (100) for automated production of bakery (BA), such as twisted buns, said system comprising: a robot arm (200) adapted for gripping and twisting dough strips (DS), a winding tool (300) for holding and/or winding the dough strips (DS), said winding tool comprising: at least two protrusions (350), preferably three protrusions, such as rods, for holding the dough, said protrusions (350) being positioned in a first end (310) of the winding tool (300). Furthermore, the invention relates to a method for automated production of twisted bakery buns.