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Laser Processing Technique for Recycling Magnet Rollers Used in Copiers (Patented)

Summary: A laser processing method that can treat magnet roller surfaces in copy machines to achieve digitally even surface roughness by simultaneously providing black-paint coat removal and laser blasting.

1. Background of Invention

With the present technology for recycling magnetic rollers (referred to below as MR) in copiers, the outside diameter of the roller is ground down through peeling with a bit, thereby reducing its dimensions, and shot blast processing is applied to resurface the roughness before the black-paint recoating is administered. (The peeling process, which uses oil mist, results in a poor workplace environment.) Consequently, recycling is limited to just once.

Under such circumstances, we developed a new idea—using a laser instead of the bit for recycling MR among other rollers used inside. Subsequent MR recycling processes are conducted in a fully automated operation that utilizes laser power, MR rotation frequency, and laser beam feed rate for a cleaner environment. In this way, such rollers can be recycled again and again.


2. Slogan:

Simultaneous treatment of black-paint peeling and surface abrasion for an indicative digital roughness without altering the outside diameter!


3. Technical Aspects (Features)

(1) Able to simultaneously facilitate paint-coat peeling and surface abrasion digital processing
(2) Able to implement cleaner, automated processing.
(3) No changes to outside diameter dimensions
(4) Recycling can be carried out multiple times, making recycling possible for as long as the MR body itself is operational


4. Suitable Industries (and Businesses)

(1) Copy machine manufacturers and related businesses that still carry out MR recycling processes using bites
(2) Businesses reviewing cost reduction of material costs and expenses
(3) Businesses currently developing new large-scale ventures or expansions
(4) Businesses experiencing difficulties with organic paint-peeling at both ends of photoconductor drums

Please note: Technology leasing, sales and purchases are available pending further negotiation.


PAINT-COAT PEELING OF MAGNETIC ROLLERS

NEW LASER RECYCLING TREATMENT TECHNIQUE

START
↓
START BUTTON ON, MACHINE HAND POSITIONING
↓
WORK ROTATION → LASER EXPOSURE (laser peeling) BEGINS
↓
SEMI AUTOMATIC/FULLY AUTOMATED TESTING EQUIPMENT
↓
EXPOSURE COMPLETE (peeling/surface abrasion to resurface ideal roughness) → HAND COLLECTS FINISHED PRODUCT
↓
BLACK PAINT → COATING COAT TREATMENT (drying, cleaning, inspection)
↓
ASSEMBLY LINE
↓
END

Note: Once exposure is complete, nozzle will revert back to original position and the cleaning process may then be omitted at the user’s discretion.

EXISTING RECYCLING PROCESS

START
↓
PEELING OF BLACK PAINT COAT USING BIT AND OIL MIST
↓
DIRTY WORK
↓
BLASTING PROCESS
↓
FINISHED PRODUCT COLLECTED (manually)
↓
TESTING/CLEANING→RECOATING  
↓ YES ↓ NO
DISCARD
COATING COMPLETED → TESTING → DRYING  
↓ YES ↓ NO
DISCARD
PACKED TO THE ASSEMBLY LINE  
↓
END

Note: Deterioration blasting process materials (iron balls, sand, etc.) and cleaners must be discarded or replaced.