CNC Cotton Can Spring Machine Launched For Textile Bobbin Spring Production

Foshan-based spring machinery maker Zhao's Machinery has introduced a CNC cotton can spring machine built specifically for the textile industry. The unit produces the support springs that hold cotton yarn inside weaving bobbins — a component that has to keep its shape through high-speed winding, packing and repeated handling on the mill floor.

One Purpose: Cotton Yarn Bucket Springs

Rather than reworking a general-purpose coiler, this is a dedicated industry unit. Wire from 4 mm to 12 mm, in ordinary carbon steel or stainless steel, is formed into multi-shape springs with repeatable pitch, diameter and lug geometry. Because the wire path, tooling and CNC profile are fixed for this family of parts, changeover time and scrap stay low while output remains stable across shifts.

Technical Specifications

Servo And Hydraulic Configuration

• Wire feed servo motor: 7.5 kW (Topcon)
• Cutter motor: 5.5 kW (Topcon)
• Diameter control motor: 3.8 kW (Topcon)
• Pitch adjustment motor: 3.8 kW (Topcon)
• Lug bending displacement motor: 2.6 kW × 2 units (Topcon)
• Hydraulic power station: 7.5 kW (Fujian Sanye)

Each axis is driven independently, so pitch, diameter and lug position can be corrected in the program instead of by hand-adjusting tooling. That matters in bobbin spring production, where a small drift in pitch shows up immediately as yarn tension variation during winding.

What It Means For Spinning And Weaving Mills

• Stable quality: every spring in a batch is formed by the same stored program, so replacement parts match the originals.
• High efficiency: unlimited feed length and 50 m/min wire feed let the machine run long cycles without stopping for re-indexing.
• Wide material coverage: the same unit handles ordinary carbon steel and stainless steel wire from 4 mm to 12 mm.
• Simple retooling: a new spring profile is a new program plus the matching tooling, not a new machine.
• Export-ready power options: 220V, 380V, 415V and 440V input covers most destination markets.

Availability

The cotton can spring machine is built to order in Foshan, China, and ships from a Chinese port. Mills that already run Topcon-controlled coilers can standardise on the same control platform across their spring lines, which simplifies operator training and spare-part planning. Detailed drawings, tooling lists and production samples are available on request so buyers can validate spring geometry before placing an order.

For spinning mills, weaving plants and bobbin manufacturers looking to bring support-spring production in-house, this dedicated CNC unit offers a targeted alternative to general-purpose coilers that require constant re-setting.