Cover-Actuated Notch Cutter for Sealing Machines
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Solution Overview
Problem
Conventional sealing machines with notch-cutting functions expose the notch-cutting knife, posing a safety hazard during operation.
Innovation Solution
The notch-cutting knife is housed within the machine body when the upper cover is open and is extended only when the cover is closed, ensuring safe operation by preventing accidental contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the notch-cutting knife is exposed to enable notch cutting function, then the notch-cutting functionality is improved, but the safety hazard increases
Solution Approach 1:
The notch-cutting knife is extracted from the exposed position and moved into a hidden state within the machine body when not in use. The knife is only extended to the working position when the upper cover closes, thereby separating the knife from the harmful exposed state while preserving its cutting function when needed.
Solution Approach 2:
The notch-cutting knife is designed to be dynamically movable between a hidden retracted position and an extended working position. This dynamic configuration allows the knife to transition from a safe hidden state during operation to an functional extended state when the upper cover closes, resolving the contradiction between safety and functionality.
2Object-affected harmful factors
If the notch-cutting knife is hidden inside the machine body, then the safety is improved, but the notch-cutting functionality deteriorates
Solution Approach 1:
The system performs preliminary action by automatically extending the notch-cutting knife when the upper cover closes. This preliminary extension ensures the knife is in the correct working position before the sealing operation begins, so that when sealing is complete, the knife is already positioned to cut the notch without requiring additional manual intervention.
Solution Approach 2:
The notch-cutting function is merged with the upper cover closing action. The closing of the upper cover simultaneously triggers both the sealing process and the extension of the notch-cutting knife, ensuring that the knife functionality is activated at the appropriate time while maintaining safety during operation.
3Manufacturing precision
If a spring is used to push the frame, then the automatic positioning is improved, but the device complexity increases
Solution Approach 1:
The spring-loaded frame performs self-service by automatically returning to its initial position after the notch-cutting operation. The spring stores energy during the cutting stroke and automatically resets the frame without requiring external intervention or complex control mechanisms, thereby achieving automatic positioning with minimal added complexity.
Solution Approach 2:
The spring acts as an intermediary element between the frame and the base, providing the necessary force for automatic positioning and resetting. This simple mechanical intermediary enables precise automatic positioning and frame return motion without requiring complex electronic controls or additional actuating mechanisms.
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 design ensures user safety by concealing the knife until it is needed for cutting, enhancing operational safety without compromising functionality.
Implementation Method 1
a spring with one end fixed with the frame and the other end is fixed with the base, and the spring has a force to push the first end of the frame configured with the notch-cutting knife to move downward
Implementation Method 2
When the upper cover is facing downward to close the base, the bottom end of the top rod passes through the opening and presses the second end of the frame to move downward, so that the frame is turned around the pivot shaft
Data Source
AI summary
A sealing machine with notch-cutting function is related to provide a frame on the notch-cutting component of the sealing machine. The center of the frame is pivoted with the base via a pivot shaft and has a first end and a second end on the left and right ends. A notch-cutting knife is fixed on the top surface of the first end. A spring having one end is fixed with the frame and the other end is fixed with the base and has a force to push the first end and the notch-cutting knife to move downward. The top wall of the base is configured with a knife dispensing opening at a position corresponding to the notch-cutting knife. The top wall of the base has an opening at a position corresponding to the second end. The bottom surface of the upper cover is protruding downward to form a top rod at a position corresponding to the opening. When the upper cover faces downward to cover the base, the bottom end of the top rod passes through the opening and presses the second end to move downward, thereby the frame taking a pivot shaft as a pivot point to enable the first end and the notch-cutting knife to move upward, and the notch-cutting knife stretches out above the top surface of the base through the knife dispensing opening. Based on the design, when the upper cover of the sealing machine is not closed, the notch-cutting knife is hidden inside the machine body and the operator will not be injured by notch-cutting knife. Therefore, the present invention provides safe use.