Control architecture
The LKQ1000 source describes an all-servo Q-shape baby pant line with touch-screen HMI, LED alarm interface, tension buffering and automatic web guiding. The architecture should be accepted through product behavior: stable waist layers, controlled elastic placement, repeatable size recipes and inspected side seams.
Operator layer: HMI, recipes and alarms
Touch-screen HMIUse controlled recipes for the approved M, L, XL and XXL products or customized sizes.
LED alarm interfaceRecord each agreed alarm, machine response, operator action and restart sample during FAT.
Recipe governanceIdentify who may edit settings and how an approved recipe is backed up and restored.
Motion layer: all-servo drive
Master product referenceMaterial and station axesCut, fold and waist operationsRecipe-linked size settings
The legacy record states that all drives are servo driven. It also calls out timing belts, conveying belts and important bearings at critical locations. A control review should therefore map each servo axis to its station, show its reference or registration signal, and document what the operator sees when synchronization is lost. The source does not list servo quantities or brands, so those details belong in the final equipment schedule.
Web layer: tension, buffer and guiding
Incoming rollApproved grade, width and winding direction
Tension bufferStable handling while new material is attached at running speed
Automatic web guideBST Germany or FIFE USA is recorded
Product stationVerify position on the finished pant after joins and restarts
The system claim becomes useful only when the witnessed product remains within its agreed position limits. Keep samples before and after a material join, together with alarm and adjustment records.
Waist-sealing layer: resolve the recorded choice
Title configuration
The page title identifies an ultrasonic production line. Acceptance should therefore include the signed ultrasonic head configuration and seam criteria.
Legacy alternative
The old body says waist sealing may be heat sealing or ultrasonic welding, with dual-station or multi-station welding heads.
This is a real scope conflict. The contract must state the selected process, number of stations or heads, approved waist laminate, operating settings, seam appearance and the destructive or non-destructive checks used at FAT. Do not treat both sealing methods as included.
Product and material architecture
Upper and lower tissue or nonwoven
Fluff core blended with SAP or laminated core
Topsheet and ADL nonwovens
Leak-proof nonwoven and PE film
Inner and outer waist nonwovens
Printed cartoon tissue, waist elastic and disposable tape
Each material path needs its own unwind or feed assumption, tension range, reference edge and trial lot. The alternative between a fluff/SAP core and a laminated core also needs an explicit configuration decision before the feed system is frozen.
Safety, stacking and utilities
Legacy fact line for LKQ1000: Dimensions 38m x 10m x 4m for reference only; Design Speed 1000 pcs/min; Operating Speed 900 pcs/min; Defect Rate ≤3%; Efficiency ≥85%; Installed Power approximately 380 kW; Air Pressure 0.6-0.8Mpa; Total Weight approximately 85 t.
| Safety | Operating-side guard and emergency-stop switch recorded |
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| Stacking | Automatic stacker on client request, described as double lines |
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| Dimensions | 38 m x 10 m x 4 m, for reference only |
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| Performance | 1000 pcs/min design; 900 pcs/min operating; defect ≤3%; efficiency ≥85% |
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| Utilities | Approximately 380 kW installed power and 0.6-0.8 MPa air |
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| Weight | Approximately 85 t |
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LKQ1000 control questions
Is ultrasonic sealing definitely included?
The title says ultrasonic, but the legacy body presents heat sealing or ultrasonic welding as alternatives. The signed equipment list must resolve the conflict.
What proves servo synchronization?
Use station mapping, alarm records and measured products from stable running, material joins, stops and recipe changes. A list of servo components alone is not acceptance evidence.
Is the automatic stacker part of the base line?
The source says it is supplied upon client request. Confirm the double-line stacker and its interface as included or excluded scope.
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