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Deep Draw Transfer Press

Deep Draw Transfer Press

We manufacture Deep Draw Transfer Press. Deep drawing process & Deep drawing press & Double action deep drawing press & Triple action deep drawing press

The kind of flexibility that gains new business for a contract stamper translates directly to quick changeover. But in addition to the ability to
swiftly and efficiently change back and forth between different part runs, another important consideration becomes how quickly a shop can set
up for a part it’s never run before. On a transfer press, the initial setup involves die preparation. Streamlining the whole process also means fast programming, quick configuration and try-out of transfer finger tooling, and setup of coil-feed equipment. For deep-draw work, particularly of large and complex parts, it also means finetuning complex draw dies that seem to be getting longer and longer every day.

As a seasoned contract stamper, the Shiloh Industries plant in
Dickson, TN, can verify the advantages of quick setup and programming, says Paul Beaton, new-launch manager. “We’ll get a call on a Friday from a manufacturer whose press has broken down, and it needs to hire out the production, quickly.

Other contract stampers must allow weeks before they can start helping out, because of long lead times for setup and because they aren’t flexible enough to interrupt current work. We’ve been able to bring in dies over a weekend, tool up the transfer automation, program the cell and start running parts on Monday.” Given the complexity of a transfer press, transfer dies, and related tooling, this sounds like a daunting task. Beaton explains that production teamwork is critical.

Die drawings or digital photos are faxed over from the customer while the dies are being shipped to Shiloh, so elements such as dubplates can be prepared ahead of time.

Deep Draw Transfer Press Characteristics

Deep Draw Transfer Press Characteristics

Operations at the Dickson facility are split about 50-50 between stamping and assembly operations, some of which are performed by multi-robot welding cells. During the spring of 2001, the plant leveraged the latest in transfer press technology by bringing a stamping cell online that includes a 1000-ton Combination Link transfer press (220 in. long and 84 in. front to back) from Press Technology Corp. (PTC), Cambridge, Ontario, Canada.

Most parts run on the press involve drawing work. Some, such as an under-the-hood shock tower, require a draw of more than 6 in. The transfer press is the plant’s fourth—two other link-motion presses boast 210- and 220-in. bed lengths while a third press, with the conventional drive, is a double-ram 300-in. model.

The link motion of the new PTC press lends itself better to the deep drawing of the types of materials—coated and high-strength steels—that the plant seems to seeing more and more of. Shiloh reports that the link action of the press provides as much as a 20-per cent increase in strokes per minute compared to an eccentric-gear press. The link mechanism is set up so that the ram speed is much faster on the approach and on its return back up to the top, with a 50-percent slowdown during forming.

Transfer Operation with a Deep Drawing Press

The combination-link designation from PTC refers to the fact that the press is designed for blanking and coining in addition to drawing work. “Compared to our other link-motion presses, this new press has a considerably greater slowdown near the bottom dead center,” says Ken Puckett, Shiloh tooling engineer. “The control we get when drawing actually allows us to run faster. For example, we’ve gained three strokes per minute by moving the shock-tower job from our older link motion press to the new one, without sacrificing quality.

We also see less heat buildup in the dead because we’re forming more slowly, and can use as much as 30 percent less drawing compound.” The Dickson plant settled on Eco Draw HVE2 draw lube 21 ⁄2 years ago, “because it provides good drawing ability, minimal consumption, and good rust prevention,” says Beaton. Eco Draw HVE2 is a general-purpose synthetic from Mid-State Chemical & Supply Corp., Indianapolis, IN.

EP (extreme pressure) additives protect tooling, and the lube leaves a residue that Shiloh finds sufficient to last through the entire transfer die. The firm sprays the lube directly onto the coil stock as it feeds into the first draw station. It finds the residue poses no problem when it comes to welding parts right off the press. “Since we’ve been required to draw more coated—galvanized—and high-strength steels,” adds Beaton, “we’ve had to use more high-pressure additives in the draw lube.”

EMS Metalworking Machinery

We design, manufacture and assembly metalworking machinery such as:

  • Hydraulic transfer press
  • Glass mosaic press
  • Hydraulic deep drawing press
  • Casting press
  • Hydraulic cold forming press
  • Hydroforming press
  • Composite press
  • Silicone rubber moulding press
  • Brake pad press
  • Melamine press
  • SMC & BMC Press
  • Labrotaroy press
  • Edge cutting trimming machine
  • Edge curling machine
  • Trimming beading machine
  • Trimming joggling machine
  • Cookware production line
  • Pipe bending machine
  • Profile bending machine
  • Bandsaw for metal
  • Cylindrical welding machine
  • Horizontal pres and cookware
  • Kitchenware, hotelware
  • Bakeware and cuttlery production machinery

as a complete line as well as an individual machine such as:

  • Edge cutting trimming beading machines
  • Polishing and grinding machines for pot and pans
  • Hydraulic drawing presses
  • Circle blanking machines
  • Riveting machine
  • Hole punching machines
  • Press feeding machine

You can check our machinery at work at: EMS Metalworking Machinery – YouTube

Applications:

  • Beading and ribbing
  • Flanging
  • Trimming
  • Curling
  • Lock-seaming
  • Ribbing
  • Flange-punching