After slitting, inserting paper cores into tape rolls and unloading the finished rolls is a critical step between slitting and packaging. Traditionally, this process relies on manual labor: workers must sort scattered paper cores, identify the big/small head direction, insert cores one by one, and then unload the finished rolls. This task consumes significant manpower and often leads to misalignment, tilted cores, or messy roll stacking – all of which hurt downstream efficiency.
With the maturity of automation technology, the integrated tube sorter + servo tube inserter is replacing manual work, becoming the core equipment for post‑processing automation on tape production lines.
1. Three Major Pain Points of Manual Core Inserting
- High labor cost
A medium‑output slitting line typically requires 2‑3 workers solely for core sorting, inserting, and unloading. The annual labor cost for this single station is considerable. - Obvious efficiency bottleneck
Manual inserting speed is generally 10‑15 cycles per minute, and it is hard to maintain consistently. When a slitting machine produces 20‑30 rolls per minute, manual inserting often becomes the bottleneck of the whole line. - Poor consistency
Manual insertion easily leads to cores not being fully pushed in, reverse direction (big/small head reversed), or damaged roll edges – resulting in rework or customer complaints.
2. Workflow of the Integrated Tube Sorter + Inserter
The integrated machine combines tube sorting, direction detection, defect rejection, precise inserting, and automatic roll unloading into one compact unit – creating a complete automation cell from “scattered cores” to “finished rolls with cores inserted”.
Standard workflow:
- Auto feeding – Workers only need to pour bags of scattered cores into the hopper.
- Direction detection & correction – Photoelectric sensors detect the big/small head direction. Reverse cores are automatically flipped by a pneumatic mechanism.
- Defect rejection – Damaged, deformed, or burred cores are automatically ejected.
- Neat arrangement – Good cores with uniform direction are aligned and ready for insertion.
- Servo precision insertion – A servo‑driven push rod quickly and accurately inserts the core into the tape roll without damaging the roll edge.
- Automatic unloading – Finished rolls with cores inserted are discharged directly to the packaging station or conveyor.
The entire process requires no manual intervention. Operating speed reaches 20‑30 cycles per minute, and the machine can run 24/7 stably.
3. Key Technical Advantages of the Dalian Jiuying Integrated Machine
- Servo motor drive – Precise insertion position, adjustable thrust to suit different core wall thicknesses and lengths.
- Large hopper capacity – Holds 200‑300 cores at a time, reducing refill frequency.
- Pneumatic flipping + photoelectric detection – Direction recognition accuracy ≥99%, completely eliminating reverse cores.
- Built‑in defect rejection channel – Automatically ejects damaged cores to avoid jamming.
- Synchronization with slitter – Can receive finished‑roll signals from the slitter for real‑time line integration without intermediate buffering.
- Fast size changeover – Core inner diameters (25.4‑76.2mm) and lengths (30‑200mm) can be adjusted quickly.
4. Return on Investment Analysis
Take a typical two‑shift, eight‑hour‑per‑shift 4‑shaft automatic turret slitting line:
- Manual insertion: 2 workers per shift, total 4 workers. Annual labor cost = [local wage] × 4.
- Integrated machine: One‑time equipment investment. Saves 3‑4 workers, and one worker can monitor 2‑3 lines’ insertion stations.
- Payback period: Typically 6‑12 months (depending on local labor cost and electricity).
In addition to labor savings, automatic insertion reduces tape waste caused by poor insertion (about 1‑2% yield improvement) and increases overall line OEE.
5. Application Scenarios and Selection Advice
- For factories already using a 4‑shaft automatic turret slitter – Strongly recommended to add the integrated machine, because the high output of the non‑stop slitter can only be matched by automatic insertion.
- For two‑shift or three‑shift tape plants – High labor cost pressure means fast payback.
- For factories that frequently change core sizes – Choose a model with a quick‑change kit; changeover time can be kept within 10 minutes.
For customers with a tight budget, a standalone автоматический сортировщик труб (only sorts cores, still manual insertion) or a semi‑automatic tube inserter can be a stepping‑stone upgrade.
6. FAQ
Q: Can the integrated machine work with different brands of 4‑shaft slitters?
A: Yes. It communicates via standard signal interfaces and can match the output rhythm of most slitter brands.
Q: What if a paper core is slightly deformed?
A: The machine’s defect detection will reject cores that exceed the set deformation threshold. They will not enter the insertion station, preventing jams.
Q: Is the insertion speed adjustable?
A: Yes. The speed can be set via the touch screen to match the slitter’s output speed, avoiding material accumulation or starvation.
If the 4‑shaft automatic turret slitter is the “engine” of a tape production line, then the integrated tube sorter + inserter is the “transmission” that allows that engine to run at full power. It solves the long‑standing manual bottleneck in post‑processing and truly enables an unmanned workflow from slitting to finished roll unloading.
If you are considering upgrading your tape core inserting process or reducing labor costs, please don’t hesitate to contact us. Our expert team can provide tailored advice and support throughout the production process. To inquire or learn more, reach out to Jiuying (JY) today.
📞 Телефон: +86-13394110095
📧 Электронная почта: liu@weldcnc.com
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