What are the characteristics of using reciprocating automatic sandblasting machine for mobile phone metal shell?

Core features of reciprocating automatic sandblasting machine for mobile phone metal middle frame/shell (special for aluminum/titanium alloy shell)

First, the sandblasting quality is stable (adapting to the high standard of 3C appearance)

The spray gun swings back and forth+belt frequency conversion speed regulation, and the gun group sweeps back and forth at a constant speed. The pressure and sand quantity of the whole machine are constant, and the matte thickness and roughness of the whole batch of shells are uniform, without color difference and local overspray and missed spray, which perfectly eliminates CNC knife lines, small burrs and scale.

Pressure, speed and spray gun stroke can be programmed by PLC, which is suitable for fine white corundum, glass beads and nylon sand, making it easy to make a fine matte surface and matte texture, and the subsequent anode/spray adhesion is even and stable.

The corners of the frame, the antenna slot and the inner wall of the opening are repeatedly sanded, and the removal rate of dead corners is high, so manual repair is not needed.

Second, the advantages of reciprocating conveying structure (two-way round trip, high utilization rate)

The workpiece belt moves back and forth, and the front and back sides can be sandblasted twice for a single feed, without turning over the machine for the second time, eliminating the turning fixture and working procedure; Can also be one-way direct mass production, flexible switching batch/small single production.

Double-zone speed change on the same machine: the belt in the feeding section and the return section is independently variable frequency speed regulation, and one equipment is compatible with two processes of rough deburring and fine matte.

It occupies a compact area, shortens the length by 30% compared with the straight-through assembly line model, and adapts to the compact layout of the production line of the mobile phone factory.

Third, mass production efficiency and cost advantages

Continuous operation for 24 hours, with a capacity of 800～1500PCS per hour, only one person is needed to load and unload, and the manpower is far lower than that of manual sand blasting and rotary sand blasting.

Closed fuselage+cyclone+sieve multi-stage abrasive recovery, qualified sand is automatically recycled, dust is separated from waste sand, abrasive loss is less than or equal to 5%, and the cost of consumables is greatly reduced.

Four, environmental protection and fuselage protection (3C dust-free workshop adaptation)

Fully enclosed sandblasting cabin+independent negative pressure dust removal, dust does not overflow, and the workshop is clean, which meets the requirements of environmental protection and dust-free management and control of electronic factories.

The inner wall of the sandblasting bin is attached with a wear rubber guard plate, and the nozzle is made of boron carbide wear-resistant parts. Aluminum sandblasting does not pollute the surface of the shell.

Five, strong versatility, quick change.

The aluminum alloy middle frame, titanium alloy frame and stainless steel back cover can be used by replacing simple tooling, and the production of different models of mobile phone shells can be quickly switched.

Parameters can be stored in one key, and the formula can be called directly when changing products, so the debugging time is short, which is suitable for multi-model and small batch production in turn.