PCB Routing Head With Brush Suction for Dust Containment
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Solution Overview
Problem
Existing routing apparatuses suffer from inefficient dust collection due to reduced power at the inlet of the dust collecting duct, leading to decreased efficiency in removing dust generated during the routing operation of printed circuit boards.
Innovation Solution
A routing apparatus design that includes a detachable first body with a brush to minimize dust dispersion during cutting and a second body to collect dust from the jig table, combined with an absorbing unit to enhance dust collection efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a dust collecting duct similar in size to the board is used at the lower part of the routing bit, then the dust collection coverage is improved, but the power of collecting dust is reduced at the inlet of the collecting duct leading to decreased dust collection efficiency
Solution Approach 1:
The dust collection system is segmented into multiple functional components: a collecting duct for capturing dust, a collecting fan for generating suction force, and a dust bag for storing collected dust. This segmentation allows each component to be optimized independently, resolving the contradiction between coverage area and collection efficiency.
Solution Approach 2:
A dust collecting duct is introduced as an intermediary component between the routing bit and the dust bag. The duct includes a dust inlet positioned above the routing bit and a dust outlet connected to the dust bag, creating an efficient dust collection pathway that maintains both coverage and suction power.
2Speed
If a routing bit rotates at high speed to cut the board, then the cutting speed is improved, but dust is greatly generated leading to increased dust dispersion
Solution Approach 1:
The dust collecting duct is positioned to receive dust at its inlet above the routing bit before the dust can disperse. The collecting fan generates suction force that actively draws dust into the duct, preventing dust dispersion before it occurs. This preliminary anti-action counteracts the dust generation caused by high-speed cutting.
Solution Approach 2:
The high-speed rotation of the routing bit that generates dust as a harmful effect is converted into a benefit by using the dust collection system. The dust inlet is strategically positioned to capture dust at its source, and the collecting fan transforms the harmful dust generation into a controlled dust collection process, directing all generated dust into the dust bag.
3Manufacturing precision
If the board is fixed on the jig table for routing operation, then the positioning accuracy is improved, but dust accumulates on the jig table requiring additional cleaning
Solution Approach 1:
The dust collection system is designed with multi-functionality to address both dust collection during cutting and dust removal from the jig table. The dust bag can collect dust from multiple sources, and the system can operate in different modes (cutting mode and cleaning mode) by adjusting the position of the dust collecting duct and dust inlet.
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 apparatus effectively minimizes dust dispersion and enhances dust collection efficiency by using detachable bodies with brushes to capture dust generated during cutting and from the jig table, ensuring complete removal of dust.
Implementation Method 1
an absorbing unit absorbing the first space of the base body, wherein in a first mode, where the routing bit cuts the bridge, the first body is combined to the base body, the base body moves in a vertical direction, and the absorbing unit absorbs air and dust from the second space of the first body through the first space of the base body
Implementation Method 2
a first body including a second space connected to the first space of the base body, combining to the base body to be detachable by surrounding the routing bit so that the routing bit is placed in the second space, and including a first brush at the end part thereof toward the board
Implementation Method 3
an absorbing unit absorbing the first space of the base body, wherein in a second mode, where dust of the jig table is removed, the second body is combined to the base body, the base body moves in a vertical direction, and the absorbing unit absorbs air and dust from the third space of the second body through the first space of the base body
Data Source
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AI summary
Provided is a routing apparatus which cuts a bridge of a board placed on a jig table and separates the board into a unit board. The routing apparatus includes: a base body including a routing bit combined thereto in a downward direction for cutting the bridge on a first space located within the base body and moving in horizontal and vertical directions; a first body including a second space connected to the first space of the base body, combining to the base body to be detachable by surrounding the routing bit so that the routing bit is placed in the second space, and including a first brush at the end part thereof toward the board; and an absorbing unit absorbing the first space of the base body, wherein in a first mode, where the routing bit cuts the bridge, the first body is combined to the base body, the base body moves in a vertical direction, and the absorbing unit absorbs air and dust from the second space of the first body through the first space of the base body while the first brush contacts the board.