Manual Cutting Machine Angled Push Rod Mechanism
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Solution Overview
Problem
Existing manual cutting machines for boards, such as floor tiles, are uncomfortable to operate and inconvenient to maintain due to the need for extensive hand and shoulder joint movement, and they lack effective lubrication and stability, leading to irregular cuts and increased maintenance needs.
Innovation Solution
A manual cutting machine design featuring a base plate with sliding rods and a slider system, where a push rod with an angled handball allows for reduced arm motion, an oil lubrication system with wool felt to reduce friction, and magnetic components for hands-free operation of the presser foot, along with a rubber cushion to stabilize the board, enhancing comfort and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual cutting machines use a simple blade holder structure, then the device complexity is reduced, but the ease of operation deteriorates due to drastic hand and shoulder joint movement required
Solution Approach 1:
The manual cutting machine is divided into functional modules: blade holder, slider, guide rod, and base plate with cushion. Each module performs a specific function, allowing the system to achieve complex cutting motions through simple individual components working together, thus resolving the contradiction between structural simplicity and operational comfort
Solution Approach 2:
The slider acts as an intermediary component between the guide rod and blade holder, translating linear motion into the required cutting path. This intermediary mechanism enables smooth blade movement without requiring drastic operator joint movements, improving ease of operation while maintaining structural simplicity
2Device complexity
If manual cutting machines lack lubrication system, then the device complexity is reduced, but the reliability deteriorates due to increased friction and maintenance needs
Solution Approach 1:
The lubrication system is designed to be self-service, where the operator can easily add lubricant through an opening in the base plate without disassembling components. This self-service approach maintains high reliability by enabling regular maintenance while keeping the overall structure simple and avoiding complex automated lubrication systems
3Device complexity
If manual cutting machines use fixed presser foot, then the device complexity is reduced, but the adaptability deteriorates for different board sizes
Solution Approach 1:
The presser foot is designed with detachable and adjustable characteristics, allowing it to be repositioned or removed based on the board size being cut. This dynamic configuration enables the same simple structure to adapt to various board dimensions, resolving the contradiction between structural simplicity and versatility
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 reduces operator discomfort, improves cutting precision, prolongs machine lifespan through lubrication, and simplifies maintenance by minimizing arm movement and providing hands-free operation of the presser foot, while accommodating various board sizes with a detachable auxiliary presser foot.
Implementation Method 1
an oil can or container is connected to the top of the slider in a threaded manner, an oil passage and wool felt are arranged in the slider, the oil passage is communicated with the oil can and the wool felt, and the oil can is provided with a switch used to control the flow of oil in the oil can. When the switch is shifted to one side, oil in the oil can is delivered onto the wool felt via the oil passage, and the sliding rods are lubricated by the wool felt, so that the frictional force between the slider and the sliding rods is reduced
Data Source
AI summary
A manual cutting machine includes a base plate. A front support and a rear support are fixedly arranged at two ends of the base plate. Sliding rods are mounted between the front support and the rear support. A slider is disposed around the sliding rods. A connecting block is hinged to the slider. A blade and a presser foot are connected to the bottom of the connecting rod. A push rod is connected to the top of the connecting block. The tail of the push rod is angled relative to the push rod. When the manual cutting machine is used for cutting and fracturing a board, motions of arms are reduced, and the motion range of an operator is narrowed, so that the operator can use the machine more easily and effortlessly. Meanwhile, oil can be added into an oil can to lubricate the slider in the using process.