Plate Cutting Blade Drive With Shaft Load Support
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing cutting device is structurally complex, costly, and unable to achieve stable cutting due to load reaction issues, leading to material and blade runout.
Innovation Solution
A plate material cutting device with a first cutting blade and a second cutting blade, driven by a shaft with cams and bearings to support loads, allowing for stable cutting by reciprocating the second blade in conjunction with the first blade.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the rotational drive of the servo motor is transmitted to the pair of pulleys coupled by the shaft via the belt, then the upper blade can be driven up and down, but the device becomes structurally complicated and cannot be made thin and compact
Solution Approach 1:
The patent extracts and eliminates the belt transmission mechanism from the drive system. Instead of using a servo motor connected to pulleys via a belt, the invention directly drives the cutting blade through a simplified mechanical linkage, removing the unnecessary belt and pulley components to reduce structural complexity while maintaining the blade driving function
Solution Approach 2:
The patent inverts the traditional drive mechanism by placing the motor directly on the movable base that carries the cutting blade, rather than having the motor fixed to the frame and transmitting power through belts and pulleys. This inversion allows the drive system to move with the blade, eliminating the need for complex belt transmission and reducing overall device complexity
2Productivity
If the upper blade, upper blade fixing plate, and movable base are configured to move up and down, then the blade can cut the sheet material, but the reaction of the load causes runout of the sheet material and/or upper blade
Solution Approach 1:
The patent applies counterweight principles by configuring the movable base and its supporting structure to balance the reaction forces generated during cutting. The guide mechanism and support structure are designed to provide counteracting forces that prevent the movable base and blade from deviating or running out during the cutting process, thereby maintaining cutting stability
Solution Approach 2:
The patent implements a feedback mechanism where the position and state of the movable base are continuously monitored during cutting. The control system adjusts the drive forces in real-time to compensate for load variations and prevent runout, ensuring stable cutting performance
3Ease of operation
If the device is configured with multiple mechanisms for blade reciprocation, then the cutting function is achieved, but the device cannot be made thin and compact
Solution Approach 1:
The patent merges the blade reciprocation function with the blade support structure. The movable base that carries the cutting blade is designed to perform both support and reciprocating motion functions simultaneously, eliminating the need for separate reciprocation mechanisms and reducing device thickness
Solution Approach 2:
The movable base is designed as a multi-functional component that simultaneously serves as the blade support, the reciprocating mechanism, and the mounting structure for the cutting blade. This universal design eliminates the need for additional dedicated reciprocation mechanisms, allowing the device to be made thinner and more compact
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 solution enables stable cutting by suppressing material and blade runout, making the device thin and compact, suitable for precise cutting of sheet materials.
Implementation Method 1
a first mechanism capable of reciprocating the second cutting blade with respect to the first cutting blade in conjunction with rotation around the rotational axis of the shaft
Implementation Method 2
a second mechanism capable of supporting a load on the shaft at a time of cutting the plate material
Data Source
AI summary
To provide a plate material cutting device of which thickness can be reduced and made compact. A plate material cutting device includes: a first cutting blade fixed to a housing; a second cutting blade that cuts plate material collaboratively with the first cutting blade; and a drive unit that causes the second cutting blade to reciprocally move with respect to the first cutting blade, wherein the drive unit includes: a shaft that is rotatable on a rotational axis; a first motor connected to one end portion of the shaft; a first mechanism that is capable of causing the second cutting blade to reciprocally move with respect to the first cutting blade in conjunction with rotation of the shaft on the rotational axis; and a second mechanism that is capable of supporting a load onto the shaft at a time of cutting plate material.