Rotating Powder Drop Structure for Toner Cartridge Flow
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Solution Overview
Problem
The existing laser printing duplicating machines using carbon powder face issues with the smooth flow of carbon powder from the toner cartridge, affecting development quality and efficiency.
Innovation Solution
An improved rotating powder drop structure is introduced, featuring a toner cartridge with a rear cover, driving gear, powder exit, blocking flakes, and a spring mechanism that enhances powder flow rate through the rotation of the driving gear and slide bar, increasing the powder discharge per rotation from 15g to 20-30g, and includes a split-type assembly for easy maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the existing toner cartridge structure is used, then the structure is simple, but the carbon powder cannot flow smoothly and the powder drop flow rate is low
Solution Approach 1:
The toner cartridge is divided into multiple functional components: storage chamber, driving gear mechanism, powder blocking flakes, slide bar, and spring. Each component performs a specific function in the powder discharge process, allowing the complex powder drop function to be achieved through modular segmentation of the structure.
Solution Approach 2:
The invention introduces a dynamic driving gear mechanism that rotates to control powder discharge. The slide bar moves dynamically under spring force during gear rotation, creating a dynamic powder blocking and releasing system that significantly increases powder drop flow rate from 15g to 20-30g per rotation.
2Loss of time
If the existing powder drop mechanism is used, then the device is simple, but the machine start time is long and energy consumption is high
Solution Approach 1:
The driving gear rotates in periodic cycles, with each rotation completing a full powder discharge cycle. The periodic engagement of powder blocking flakes with the gear teeth creates rhythmic powder flow control, enabling the machine to reach operational state faster by discharging 20-30g of powder per rotation compared to the previous 15g.
3Reliability
If the powder blocking flakes are fixed tightly, then the sealing is good, but the powder cannot be discharged efficiently
Solution Approach 1:
The powder blocking flakes are designed to be dynamically controllable rather than fixed. During gear rotation, the flakes are pushed by the spring to block powder at certain positions, then released to allow powder discharge. This dynamic mechanism maintains reliable sealing when needed while enabling efficient discharge during operation.
Solution Approach 2:
The spring continuously exerts force on the slide bar and powder blocking flakes throughout the gear rotation cycle, ensuring continuous control over powder flow. This continuous action maintains sealing integrity while enabling sustained high-speed powder discharge, achieving both reliability and productivity.
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 increases the powder flow rate, reduces machine start time, and decreases energy consumption while improving assembly tightness and allowing for low maintenance costs due to the modular design.
Implementation Method 1
a spring is located within the powder exit, a slide bar is located at a top of the spring
Data Source
AI summary
An improvement rotating powder drop structure includes a toner cartridge, wherein a toner cartridge rear cover is located at a bottom of the toner cartridge, a rear cover sealing gasket is located between the toner cartridge and the toner cartridge rear cover, a driving gear is sleevedly connected to a top of the toner cartridge, a powder exit is provided at an inner side of the driving gear, a powder exit sealing gasket is provided at an inner side of the powder exit, two first powder blocking flakes are respectively symmetrically located at two sides of the powder exit, two second powder blocking flakes are respectively fixed to two first powder blocking flakes, a spring is located within the powder exit, a slide bar is located at a top of the spring, an upper cover is located at the top of the toner cartridge.