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Automatic Foundation Powder Pressing Machine
A pressing platform configured for powder foundation pans and pressed foundation compacts. The machine automates pan infeed, powder dosing, bed consolidation, compaction, and ejection in a continuous cycle, with recipe driven control over fill weight, pressing force, dwell time, and cycle rate. Each cycle is recorded against the production batch with force and position data available for review.
High Density Compaction
Powder foundation requires sustained force to reach target cake hardness. The press holds force through an extended hold stage, allowing the binder to flow across the powder matrix.
Flat Surface Control
Upper punch flatness and approach velocity are set per recipe to produce a consistent pan surface without press marks or localized density variation.
Edge Integrity
Compaction gradient and release rate are tuned per formulation to limit edge chipping on powder foundation pans after ejection.
Cycle Data Capture
Force, position, and dwell time are recorded per pan and linked to the batch record for process review and deviation analysis.
System Architecture
Dosing Station
Servo auger with volumetric fill. Powder is dosed to the recipe weight and verified by an inline check weigher before the pan advances.
Leveling Station
Scraper blade and controlled vibration consolidate the powder bed, reducing fill height variation before compaction.
Pressing Station
Upper and lower punches with servo or hydraulic actuation. Force, approach velocity, and hold time are set per recipe.
Ejection Station
Pneumatic or servo driven ejector lifts the pressed pan from the die. Stroke is set to match pan depth and is verified after tooling change.
Inspection Point
Pan height and surface condition are checked. Weight data from the check weigher and pressing data from the controller are linked to the batch record.
Specification Range
Production Applications
Pressed Powder Foundation
Standard powder foundation pans pressed at moderate to high force with extended dwell for uniform density across the pan face.
Compact Foundation Cases
Refill and compact case formats where pan height and surface finish must match the case geometry for assembly.
Domed Foundation Compacts
Domed formats pressed with curved tooling, where approach velocity and compaction gradient protect the dome profile.
Embossed Foundation Pans
Logo and pattern relief pressed at reduced approach speed to preserve detail on the pan surface through compaction.
Multi Shade Foundation Range
Shade range production using per recipe recall, where fill weight and pressing parameters change between shades without mechanical adjustment.
Sample and Trial Production
Smaller batch runs for formulation trials and market samples, using reduced force settings and shorter cycles on the same tooling.
Frequently Asked Questions
What force range is required for pressed powder foundation
Pressed powder foundation typically uses a moderate to high force range with extended dwell time. The exact value depends on pan diameter, binder content, and target cake hardness, and is established during factory acceptance testing on the specified formulation.
Which foundation pan formats can the machine handle
Round, oval, rectangular, and domed formats are supported through interchangeable die plates. Standard range covers 35 mm to 90 mm diameter or equivalent footprint, with larger formats available on request with adjusted force range.
How is fill weight controlled for each pan
Powder is dosed by a servo driven auger using a volumetric fill method. An inline check weigher confirms weight against the recipe value, and out of tolerance pans are diverted before pressing. Fill weight is normally held within plus or minus 0.05 g.
What tooling changeover time should be expected
A full tooling set change typically takes 25 to 55 minutes, depending on pan shape and the number of positions to be updated. Tooling is stored by recipe code and staged before changeover to minimize downtime.
Can the machine press pans at high force without density variation
High force ranges are supported with a leveling step before pressing and a controlled compaction gradient during the stroke. The leveling step reduces fill height variation, and the gradient is set to distribute density evenly across the pan face.
What data is logged per batch
Fill weight, pressing force, dwell time, pan count, and reject counts are logged per batch. Cycle level data can be exported through OPC UA or CSV for quality documentation and process review.
What maintenance intervals apply to the press
Punch and die inspection is recommended every 500 hours, auger and dosing system cleaning at every shade change, indexer calibration every 1,000 hours, and load cell verification every 12 months. Hydraulic oil analysis is recommended every 1,500 hours where hydraulic actuation is specified.
Can the machine integrate with compact case assembly lines
Yes. The discharge station provides a position identified signal that downstream case loading or tray assembly equipment can use for alignment and sequencing. Integration requirements are defined during line layout planning.
Process Deviation Reference
Pan surface shows press marks
Reduce approach velocity at the contact stage. Inspect the upper punch face for powder build up or surface wear. Extend hold time slightly so the powder matrix settles before release.
Edge chipping after ejection
Slow the release rate and reduce the compaction gradient in the final stage. Verify punch and die clearance against the tooling record. Confirm powder moisture content remains within the recommended band.
Density varies across large pan diameter
Review the bed leveling step and confirm scraper or vibration setting is correct. Extend hold time to allow uniform settling. Check the upper punch face for flatness against the tooling record.
Fill weight varies across positions
Run the per position calibration routine for the affected auger. Confirm powder bulk density consistency in the hopper and check the auger screw for wear. Verify hopper level remains above 30 percent during production.
Pan not fully ejected from die
Verify ejection stroke matches the pan depth setting. Inspect the ejector rod for contamination and clean the die wall. Confirm the lower punch returns fully before the next fill stage.
Check weigher rejects exceed normal range
Verify check weigher calibration against a reference balance. Inspect the auger and dosing barrel for powder build up. Confirm the powder supply has not shifted in particle size or moisture content between batches.
Integration Notes
Powder Supply
A buffer hopper with level feedback is recommended upstream. Powder should be dry, free of lumps, and within the specified particle size range before loading.
Downstream Transfer
The discharge station is compatible with conveyor transfer, tray loading, or robotic pick and place. A position identified signal supports downstream case loading and assembly alignment.
Tooling Storage
Punch and die sets should be stored in labeled racks with protective coating. Tooling records with clearance values accompany each pan format and recipe code.
Maintenance Planning
Recommended intervals cover punch and die inspection every 500 hours, indexer calibration every 1,000 hours, auger cleaning at each shade change, and load cell verification every 12 months.
