Semi-Automatic Grinding And Polishing Machine | Mirror Finish for Stainless Steel & Metal Accessories

1. Equipment Overview

1-1 Design Concept & Working Principle

Product Overview

The semi-automatic grinding and polishing machine is designed for precision surface treatment of stainless steel, jewelry, hardware, and decorative metal parts. With its combination of automatic feeding stability and manual adjustment flexibility, this machine ensures consistent mirror finishes, reduced labor, and high efficiency.

It is ideal for manufacturers who require high-quality surface finishing, such as jewelry makers, metal accessory producers, and stainless steel fabrication workshops.

Key Applications

• Jewelry Industry: stainless steel bracelets, bangles, rings, pendants, earrings

• Decorative Hardware: watch cases, buckles, accessories, fashion hardware

• Stainless Steel Products: kitchenware, handles, stair railings, decorative panels

• Small Metal Parts: precision components requiring mirror polish and deburring

Main Functions

• Grinding: Removes burrs, scratches, and welding marks on the surface

• Polishing: Produces smooth and uniform surfaces before final finishing

• Mirror Polishing: Achieves high-gloss reflective surfaces (mirror effect)

• Deburring & Surface Refinement: Improves safety, smoothness, and aesthetics

• Multi-purpose Finishing: Supports satin, semi-gloss, and mirror polishing modes

Key Features

• Semi-Automatic Operation: Stable polishing with flexible manual adjustments

• Adjustable Parameters: Speed, pressure, and polishing time are fully adjustable

• Consistent Quality: Ensures uniform mirror finishes across batches

• Quick Tool Change: Easy replacement of polishing wheels and grinding belts

• Compact Design: Space-saving, suitable for workshops and small factories

• Dust Collection Port: Compatible with external dust collectors for a cleaner environment

• Energy Efficient: Optimized motor power consumption with high performance output

1-4 Technical Parameters

1-5 Limit Switches & Operation

• Switches: Four limit switches (front extreme, front limit, rear limit, rear extreme).

• Operation:

• The front limit serves as the origin. After activation, the table moves forward until contacting the rear limit, then reverses.

• Extreme switches act as safety backups if primary limits fail.

1-6 Sway Adjustment & Lubrication

• Adjustment: Stop the machine and press the emergency stop before adjusting sway distance via the screw slot.

• Lubrication:

• Apply grease weekly to gears, racks, and handwheel升降 parts.

• Lubricate oil nozzles every 15 working days.

• Add guide oil (GB/T314-1994) to linear bearings every 15 working days.

1-7 Control Panel

1. Power Indicator: Lights up when powered.

2. Work Indicator: Activates during operation.

3. Emergency Stop/Limit (PLC Light): Stops all functions; requires reset after activation.

1-8 Polishing Wheel Compensation

• Manual Compensation: Adjust via handwheel as the wheel wears.

• Stepper Motor Compensation: Automated adjustment via stepper motor.

2. Operation & Usage

2-1 Pre-Operation

• Read the manual thoroughly and verify power voltage compatibility.

• Ensure proper grounding to prevent electric shock.

2-2 Manual Compensation Steps

1. Positioning: Align the wheel slightly beyond the workpiece edge (10 mm offset).

2. Set Limits: Fix forward/rear limit switches based on wheel coverage.

3. Contact Adjustment: Lower the wheel to contact the workpiece surface.

4. Reset & Set Counts: Reset the system and set polishing cycles (default: 6 cycles).

5. Current Adjustment: Monitor ammeter and adjust pressure:

• Stainless steel: 18-21A

• Zinc alloy: 15-18A

• Copper: 12-16A

6. Production: Start production with sway enabled and manual waxing.

2-3 Stepper Compensation

• Similar to manual steps but controlled via touchscreen.

• Use the emergency stop for halts; reset to restart.

3. Operational Workflow

3-1 Wiring Requirements

• Disconnect power during thunderstorms or inactivity.

• Secure the machine to the ground to prevent movement.

• Ensure cable connectors are tightly fastened with copper sleeves.

• Environment: Dry, dust-free, no direct sunlight, temperature -10~40°C, no vibrations/corrosive gases.

3-2 Workpiece Setup

Place the workpiece on the worktable.

3-3 Spindle Operation

Start the spindle and ensure clockwise rotation (reverse motor wires if needed).

3-4 Trial Run

• Use manual mode to position the workpiece under the wheel.

• Lower the wheel to contact the surface.

3-5 Adjustment

Set travel limits via limit switches based on workpiece length. Switch to auto mode and reset.

3-6 Production

Start automatic operation and fine-tune via handwheel for optimal results.

3-7 Workpiece Removal

Wait for the work light to turn off before removing the workpiece.

3-8 Shutdown

Power off, clean the machine, and lubricate moving parts regularly.

4. Common Issues & Solutions

4-1 Mechanical Issues

• Unstable Sway/Noise: Tighten screws and lubricate bearings.

• Poor Polishing Quality: Adjust conveyor speed or resurface the polishing wheel.

4-2 Electrical Issues

• Consult the manufacturer for PLC-related problems.

5. Safety & Maintenance

5-1 Precautions

1. Confirm wheel rotation direction before startup.

2. Stop immediately for abnormal noises or behaviors.

3. Contact the supplier for unresolved issues.

4. Lubricate the spindle and guides regularly.

5. Check and tighten screws after 8-10 hours of operation.

5-2 Maintenance

• Clean daily with filtered compressed air.

• Lubricate friction points (sliders, rails) regularly.

• Use dust extraction during cleaning.

• Check and clean the air filter daily.

1. Product Overview:
Our automatic buffing and polishing machine is a specialized industrial equipment designed for precision surface treatment of metal accessories, particularly targeting belt buckles and various hardware components. The machine combines advanced mechanical motion systems with pneumatic control to deliver consistent high-quality finishing for small to medium-sized metal products.

2. Key Applications:

• Belt buckles and metal accessories

• Small hardware components

• Decorative metal items

• Cabinet handles and fixtures

• Jewelry display items

• Precision instrument parts

3. Technical Features & Functions:

Dual-Motion Work Table System:

• Front-to-back linear movement through precision gear rack transmission

• Simultaneous left-right oscillating motion via eccentric mechanism

• This compound motion ensures even coverage and eliminates directional polishing marks

Pneumatic Polishing Head:

• Air cylinder controlled head pressure application

• Manual compensation system for precise pressure adjustment

• Consistent contact pressure maintenance throughout operation

4. Performance Characteristics:

• Compact Structure: Space-efficient design with rational layout

• Stable Performance: Vibration-free operation ensures consistent finishing quality

• Low Noise Operation: Optimized for comfortable working environment

• High Efficiency: Mass production capability with consistent results

• User-Friendly: Simple operation with minimal training requirements

5. Technical Specifications:

• Work table size: [Customizable based on model]

• Oscillation frequency: [e.g., 0-60 cycles/min]

• Travel distance: [e.g., 200-500mm]

• Air pressure requirement: [e.g., 0.5-0.7MPa]

• Power capacity: [e.g., 2.2-3.7kW]

• Dimensions: [Varies by model]

6. Quality Advantages:

• Uniform surface finishing across batch productions

• Reduced rejection rate through consistent pressure application

• Minimal manual intervention required

• Low maintenance design with easily accessible components

• Adaptable to various polishing compounds and wheels

7. Operational Process:

1. Operator places workpieces on work table

2. Machine initiates automated polishing cycle

3. Dual-axis motion system engages simultaneously

4. Pneumatic head applies predetermined pressure

5. Complete cycle automatically concludes

6. Finished products are removed for next batch