Mesin pengikat baja otomatis online

Ringkasan Eksekutif

An online automatic steel strapping machine sits in the coil line and straps each coil through the eye as it arrives, with no operator. The coil handling system sends a start signal, the head feeds, tensions and joins a steel strap, and a done signal releases the coil. Our equivalent solution uses a heavy-duty sealless head with up to 22,000 N strap tension and about 35 s per band on an 1,800 mm coil. This page covers the line handshake, cycle time, strap specification, joints and strap feeding.

An orange strapping machine stands over a roller conveyor with yellow side guides. A test coil, a thick round disc lying flat with its eye vertical, sits on the rollers under the head.

The strapping head with its pneumatic cylinders and blue air lines is mounted on a vertical column, and a guide arm reaches over and through the coil to carry the strap. Testing on a dummy coil like this is how the head, guide and signals are proven before the machine goes to site.

Daftar Isi

What online means in a coil line

An offline strapper is a separate station where coils are brought by crane. An online strapper is part of the conveyor: coils arrive lying flat with the eye to the sky, stop under the head, get strapped and move on. Because the coil turns 360° on the station, one head can place several bands around the coil without moving the head. A single head mounted at the top of the coil does the radial, eye-through bands.

Start and done signals

The strapper and the coil handling system talk through two signals:

  1. Mulai: the coil handling equipment sends a start signal once the coil is in position.
  2. Mengikat: the head feeds the strap through the guide, takes up, tensions, joins and cuts it.
  3. Belok: the coil turns to the next band position, and the head straps again.
  4. Selesai: after the last band, the strapper sends a completion signal and the conveyor moves the coil on.

The head solenoids run on 24 V DC. Whether the handshake uses hard-wired I/O or a fieldbus is set with your line supplier. That choice, the compressed air need and the minimum coil ID for guide clearance are confirmed at quote. Agree the signal list, conveyor stop position and sensor positions early. Those are the points where most commissioning time goes.

Cycle time per band

On a test coil with an 1,800 mm OD, the cycle time from start to done is:

Band Total waktu
1 ≤ 35 d
2 ≤ 76 d
3 ≤ 112 d

Coils per hour = 3,600 ÷ total time. With 2 bands that is 3,600 ÷ 76, about 47 coils per hour for the strapping cycle alone. Conveyor infeed, positioning and discharge time come on top, so the line rate is lower. Strap feed and take-up run at up to 3,000 mm/s, so most of the time goes into tensioning, joining and turning the coil.

Steel strap specification

Barang Nilai
Lebar 31.75 ± 0.13 mm
Ketebalan 0.8–1 mm, 0.8 mm recommended
gaya tarik 900 MPa or greater
Bahan cold-rolled medium carbon steel
Finish blued, galvanized, painted or waxed
Kumparan tali ID 406 mm, OD under 840 mm, about 430 kg

Strap quality matters as much as the head. Use machine-grade strap that meets GB/T 25820-2018 or equal, with limited sickle bend and twist, or the strap jams in the guide.

Sealless joints and joint strength

The head makes a sealless joint (anti-slip with a safety lock) or a latch-type joint, with no separate seals to load. One cylinder does both the joint and the cut. Joint strength is up to 70–80% of the strap strength, depending on maintenance and strap quality. Keep the head clean: the blow-off cleans strap debris from the nip unit, and worn joint tools lower joint strength first.

Strap feeding and coil changes

A vertical strap dispenser of the 500 kg class carries one strap coil of about 430 kg, so changes are rare and fewer strap ends go to waste. The head runs two servo drives: one for high-speed feed and rewind, one for low-speed tensioning. At the end of each band the next strap end is pre-fed into position to save time on the next cycle.

Daftar periksa pemilihan

  1. Diameter luar (OD), diameter dalam (ID), lebar, dan berat kumparan.
  2. Coils per hour and bands per coil.
  3. Coil orientation: eye to the sky or eye horizontal.
  4. Strap width, thickness and joint type.
  5. Line control system and signal list.
  6. Edge protection needs.

Safety/keselamatan

The machine is designed to EN ISO 12100:2010 for risk assessment, EN 415-10 for packaging machine safety and EN 60204-1 for electrical equipment. Steel strap under 22,000 N of tension, the moving guide arm and the turning coil are the main hazards. The strapping zone should be fenced and interlocked with the line, so nobody enters while the head is in cycle. Guarding and CE documents are agreed per project.

Pertanyaan yang Sering Diajukan (FAQ) tentang Teknik

Q: How long does it take to strap one coil? A: On an 1,800 mm OD coil, up to 35 s for 1 band, 76 s for 2 and 112 s for 3.

Q: What strap does it use? A: Steel strap 31.75 mm wide and 0.8–1 mm thick, 0.8 mm recommended, 900 MPa or greater.

Q: How strong is a sealless joint? A: Up to 70–80% of the strap strength, depending on maintenance and strap quality.

Q: How does it link to my line? A: A start signal from the coil handling system, a done signal back when the last band is on.

Q: How often is the strap coil changed? A: Rarely. The dispenser holds a strap coil of about 430 kg.

Langkah selanjutnya

  1. Send your coil sizes, weights, bands per coil and line layout Kirimkan ke info@fhopepack.com.
  2. Kami mengatur the head, guide, strap and signals.
  3. Kami membalas dalam waktu 24 jam dengan proposal dan penawaran harga.

sumber

  • FHOPE quotation: steel coil packing line, automatic steel strapping station and strapping head data
  • EN ISO 12100:2010; EN 415-10; EN 60204-1; GB/T 25820-2018
  • The online steel strapping machine shown above

Terakhir ditinjau: 19-10-2026

Pos terkait

Pesan Panggilan
Pesan Panggilan