Pasta Cutting Machine Load Sensing for Precise Die Alignment
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Solution Overview
Problem
Existing pasta cutting machines face challenges in accurately positioning the cutting mechanism with respect to the die, leading to potential mechanical damage due to high-pressure pasta extrusion and accidental accumulation, which can cause overloads.
Innovation Solution
A pasta cutting machine with a movable operating unit, guided by a vertical column and actuated by a threaded bar, equipped with a load sensor and encoder for precise positioning, and dual ventilation systems to optimize air flow conditions, preventing overloads and facilitating automated alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the cutting machine uses a fixed positioning system, then the structure is simple, but the positioning precision between the die and cutting machine is poor
Solution Approach 1:
The patent replaces manual mechanical positioning with an automated system using a load sensor to detect contact between the die and collection chamber, and an encoder to precisely control the vertical position of the cutting unit. This substitution of mechanical sensing and control systems achieves high positioning precision while reducing operational complexity.
2Reliability
If the cutting machine operates without overload protection, then the device complexity is low, but the reliability is poor due to risk of mechanical damage
Solution Approach 1:
The patent implements a feedback control system where the load sensor continuously monitors the force between the die and collection chamber, and the encoder tracks the position of the cutting unit. When abnormal conditions are detected (such as pasta accumulation causing excessive force), the system provides feedback to stop operation, preventing mechanical damage while maintaining system reliability.
Solution Approach 2:
The load sensor and control system are positioned to detect potential overloads before they cause mechanical damage. The system prepares for abnormal conditions by having the load sensor ready to detect excessive forces and the control system ready to stop operation, providing beforehand protection against mechanical damage.
3Manufacturing precision
If manual positioning operations are used, then the ease of operation is high, but the positioning accuracy and safety are poor
Solution Approach 1:
The system performs self-positioning through automated detection and control. The load sensor automatically detects when the die contacts the collection chamber, and the encoder automatically controls the vertical movement of the cutting unit to the correct position. This self-service positioning eliminates the need for complex manual operations while achieving high alignment accuracy.
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
Enhances the precision and safety of the cutting process by preventing mechanical damage and ensuring accurate alignment, while optimizing air flow conditions for efficient pasta handling.
Implementation Method 1
A load sensor for detecting a load transmitted by the operating unit to the column is associated with the threaded bar
Implementation Method 2
the actuation device comprises a threaded bar supported on the column and extending longitudinally therealong, driven in rotation by a motor, and on which a nut screw integral with the slide the operating unit meshes
Implementation Method 3
the cutting machine may comprise an encoder for detecting the position of the slide with respect to the column
Implementation Method 4
dual ventilation systems to optimize air flow conditions
Data Source
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AI summary
The machine comprises a cutting unit (15) and a chamber (13) for collecting pasta cut by the cutting unit (15). Arranged beneath the collection chamber is conveyor device (31) adapted to receive the pasta exiting from the collection chamber (13). The machine further comprises a substantially vertical support column (5) along which the operating unit (9) is movable, and which is associated with an actuation device for controlling the vertical movement of the operating unit along the column. The actuation device comprises a threaded bar (71) supported on the column (5) and extending longitudinally therealong, driven in rotation by a motor (73), and on which a nut screw (75) integral with the slide (7) meshes. A load sensor (77) for detecting a load transmitted by the operating unit (9) to the column (5) is associated with the threaded bar (71).