Kneading Machine Oil Spray Device for Dough Discharge
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Solution Overview
Problem
Existing kneading machines with rectangular transport containers face challenges in evenly applying oil to prevent dough from sticking, as manual or nozzle-based methods are unreliable and inefficient.
Innovation Solution
A kneading machine equipped with a rotatable kneading tub and a central emptying device featuring an oil spray device that can be moved within the tub's opening, allowing for uniform oil application to the transport container's inner walls and bottom, using adjustable fan jet nozzles and a full cone nozzle to ensure even coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual or nozzle-based methods are used to apply oil to the transport container, then the process is simple to implement, but the oil application is unreliable and uneven
Solution Approach 1:
The oil spray device is made movable relative to the kneading tub opening, allowing it to be positioned optimally for spraying the transport container. The device can be moved into a first position for spraying and a second position for retraction, enabling reliable and even oil application while maintaining operational flexibility.
Solution Approach 2:
The oil spray device is activated before the dough discharge process begins, allowing the transport container to be pre-coated with oil. This preliminary action ensures that the container is properly prepared to prevent dough sticking before the dough is introduced.
2Manufacturing precision
If the oil spray device is positioned inside the opening region, then even spraying of the transport container is achieved, but the device interferes with dough flow
Solution Approach 1:
The oil spray device is designed to move between two positions: a first position where it is inside the opening region for even spraying of the transport container, and a second position where it is retracted outside the opening to allow uninterrupted dough flow. This dynamic positioning resolves the conflict between spraying precision and discharge efficiency.
Solution Approach 2:
The oil spray device operates periodically - it is positioned inside the opening region before dough discharge to apply oil evenly, then moved outside the opening during dough discharge. This periodic movement between positions ensures both uniform oil application and efficient dough flow without interference.
3Ease of manufacture
If a rectangular transport container is used, then cost-effectiveness is improved, but dough removal becomes difficult
Solution Approach 1:
The oil spray device applies a uniform coating of oil to the entire inner surface of the rectangular transport container before dough discharge. This preliminary lubrication action prevents dough from sticking to the container walls, making dough removal easy despite the rectangular shape and lower manufacturing cost of the container.
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
Ensures reliable and uniform oil application to the transport container, preventing dough sticking and facilitating easy discharge, enhancing process reliability and efficiency.
Implementation Method 1
an oil spray device (21) which can be moved into a region of the opening (16) from below the opening (16), in a plan view, viewed from above the opening (16)
Implementation Method 2
oil is used, which is smeared onto the walls before the food dough is added, thus preventing the dough from sticking to the transport container
Data Source
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AI summary
The invention relates to a kneading machine (1) for food doughs comprising a rotatable kneading bowl (6) which has a central opening (16) in a base (15) for discharging the food dough, and a central discharge device (14) which is arranged to close the opening (16) in an operating position by means of a movable closing body (17) and to release the opening (16) for discharging the food dough in a discharge position, wherein an oil spray device (21) is arranged below and in top view in the area of the opening (16), which is movable out of the area of the opening (16).