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AGILE AND MASSIVE...PRESS FEED LINE DRIVES AUTO STAMPING SUPPLIER

A leading North American leading stamping firm and Tier 1 & 2 supplier to the auto industry has recently installed a new, state-of-the-art electronic servo press feed line at one of its facilities, located in Springfield, TN, heightening its flexibility and production range. The new system, from Dallas Industries, Inc. of Troy, MI, features an advanced PC unit that links feed line equipment and the press for powerful synchronous control—including programmable cams—and monitoring, plus, with an expansive part number/job memory function, the system provides fast and easy changeovers that is ideal for JIT-type operations

In addition to Dallas' Pressmaster© Plus, the new sophisticated line includes a centering reel with thread drive and load car, a powered straightener, and a model DRF-872 electronic roll feed and a powered threading table that mounts between the straightener and feed. The line’s capacities and performance specifications are impressive including coil weights of up to 50,000 pounds and stock up to 72" wide with material thickness of 0.90" at the 72" width and 0.200" thick at 50" width in high-strength steel. Despite it large, upper-end capacities, the system can accurately and nimbly feed materials at a 0.040" minimum thickness. The feed provides feed length accuracy throughout the material range and SPM which reaches an approximate feed and press speed of 70 strokes per minute at 12" length and a 270o feed cycle.

The DRF-872 servo feed includes such mechanical features as two full width 8" diameter, hardened and matte finish chrome rollers…mounted using anti-friction bearings, and both rollers are driven by precision cluster gearing, hardened edge guide rollers, electronically actuated pilot pin release, plus air cylinders operation of upper feed roll. Drive highlights include digital servo controller and AC brushless motor, self-diagnostics, feed length settings from 0 to 999.999” in 0.001" increments, and adjustable acceleration rates for handling delicate materials. Also included are a variable speed control and a jog feed cycle to index material a preset length.
The Dallas model DPS-4.2-7-72 powered straightener incorporates seven 4.2" diameter hardened, ground, polished and chrome plated, anti-friction mounted straightener rolls, and two pairs of 5.6" diameter chrome finish pinch rolls at the entry and exit of the unit. The straightener also features a central lubrication system (for feed, too), motorized upper roll adjustment, LCD readouts of roll positions, adjustable vertical guide rolls at the entry point, and a three-sensor electronic eye loop control with automatic straightener payout adjustment for optimum performance.

The Dallas reel includes hydraulic push button expansion and thread drive, a fail-safe brake that locks the spindle to prevent coasting, and the hydraulic powered, push-button control load car featuring 24" lift for handling coils of varying OD's. Additional mandrel shoes were also provided to increase the coil ID handling versatility.

The Pressmaster Plus not only controls the feed line's function and synchronizes the straightener and feed speeds, but also coordinates and adjusts feed acceleration and velocity to automatically follow varying press speeds and SPMs. The control has a full size keyboard and color monitor, with an unlimited, disk storage part file capacity. A special feature of the control is its capacity to include feed initiate and pilot release timing as part of the programming, which is also stored with other job parameters.

Dallas Industries' press feed and coil handling equipment includes servo feeds in a full range of sizes and capacities, air feed systems, pull-thru and powered straighteners, both cradles and coil reels, and a wide selection of auxiliary accessories. For further information regarding Dallas Industries and its products, visit online: www.dallasindustries.com

The electronic servo press feed line from Dallas Industries provides fast and easy changeovers that is ideal for JIT-type operations