Movable Sawdust Shielding for Swinging Circular Saw Blades
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing carpenter circular saw machines suffer from sawdust being easily blown out and scattered around, leading to pollution and accumulation on machine components, making cleaning difficult and operation unsmooth.
Innovation Solution
A sawdust discharge guiding device comprising a dust shielding cover with a fixed cover body, a movable shield plate, a pivot assembly, and a torsion spring, along with a dust discharge tube, which effectively blocks and collects sawdust by adjusting to the circular saw blade's movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the dust-blocking shield is arranged to completely cover the underside of the platform, then sawdust blocking is improved, but the shield interferes with and hits the platform when the saw blade holding seat swings sideways
Solution Approach 1:
The dust-blocking shield is transformed from a fixed structure to a movable one by adding a suspension seat with rotating and tilting capabilities. This allows the shield to dynamically adjust its position and angle, maintaining effective dust blocking while avoiding interference with the platform during sideways swinging operations.
2Device complexity
If the discharge tube is arranged at a location further than the far saw point, then the structure is simplified, but sawdust contacts the blocking walls and is driven upward by airflow to blow out through the through opening
Solution Approach 1:
The discharge tube is positioned to extend into the dust-blocking shield's interior space in advance, creating a preliminary collection zone. This allows sawdust to be captured and directed into the discharge tube before the airflow can drive it upward against the blocking walls and out through the through opening.
3Adaptability or versatility
If the saw blade holding seat is made movable for height adjustment and swinging, then cutting versatility is improved, but the dust-blocking shield cannot maintain complete coverage and gaps form
Solution Approach 1:
The dust-blocking shield is equipped with a suspension seat that enables it to rotate and tilt dynamically, allowing it to adapt its position and orientation to maintain effective coverage despite the movable saw blade holding seat's various positions and angles during different cutting operations.
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 device significantly reduces the occurrence of sawdust being blown out and accumulated on components, ensuring cleaner operation and extending the lifespan of machine components.
Implementation Method 1
a suction pump (not shown) that generates a suction force. The opposite end of the discharge tube 9 is connected to the suction pump
Implementation Method 2
a torsion spring, which comprises a middle portion through which the pivot assembly penetrates and has one end supported on the first lateral wall of the fixed cover body and an opposite end supported on the movable shield plate, so as to provide a preloading spring force to the movable shield plate for upward rotation
Data Source
AI summary
A sawdust discharge guiding device of a carpenter circular saw machine is provided, including a dust shielding cover including a fixed cover body including first and second end walls and first and second lateral walls having bottoms to which a dust discharge portion having a dust discharge opening is connected; a movable shield plate including a pivot through-hole; a pivot assembly pivotally connected between a pivot aperture formed in the fixed cover body and the pivot through-hole of the movable shield plate to allow the movable shield plate to rotate about the pivot assembly; and a torsion spring having a middle through which the pivot assembly penetrate and having one end supported on the first lateral wall of the fixed cover body and an opposite end supported on the movable shield plate to provide a biasing force for upward rotation to the movable shield plate.