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Discussion History

Drafting System

Assembly

The heart of the machine: a three-over-three or four-over-four roller arrangement that grips the doubled slivers and pulls them out to a fraction of their fed thickness, with pressure-loaded top rollers and a high main draft in the front zone. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Drafting System parts and their functions

8 top-level parts · 81 parts in total · full bill of materials below
Drafting System parts diagram: 1 bottom drafting roller, 2 top pressure roller, 3 top roller pressure arm, 4 draft change gearbox, 5 top roller clearer, 6 helical gear pair, 7 servo motor, 8 ball bearing. 81 parts in 8 top-level items.
Drafting System parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Bottom Drafting Roller 4× Bottom drafting rollers
2 Top Pressure Roller 4× Top pressure rollers
3 Top Roller Pressure Arm 1× Top roller pressure arm
4 Draft Change Gearbox 4 parts 1× Draft change gearbox
5 Top Roller Clearer 2× Top roller clearers
6 Helical Gear Pair 3× Roller drive gears
7 Servo Motor 4 parts 2× Drafting servo motors
8 Ball Bearing 8× Roller bearings

3D model

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Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
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Bill of materials for Drafting System

8 top-level lines · 23 rows shown · 81 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Bottom Drafting Roller draw-frame-bottom-roller 4× 4 · part
2 Top Pressure Roller draw-frame-top-roller 4× 4 · part
3 Top Roller Pressure Arm draw-frame-pressure-arm 1× 1 · part
4 Draft Change Gearbox 4 parts draw-frame-draft-gearbox 1× 1 11 assembly
4.1 Gearbox Housing gearbox-housing 1× 1 · part
4.2 Helical Gear Pair gear-pair 4× 4 · part
4.3 Ball Bearing ball-bearing 4× 4 · part
4.4 Oil Seal oil-seal 2× 2 · part
5 Top Roller Clearer draw-frame-clearer-roller 2× 2 · part
6 Helical Gear Pair gear-pair 3× 3 · part
7 Servo Motor 4 parts servo-motor 2× 2 24 assembly
7.1 Stator Assembly 3 parts stator-assembly 1× 2 3 assembly
7.1.1 Stator Core (laminations) stator-core 1× 2 · part
7.1.2 Copper Winding copper-winding 1× 2 · part
7.1.3 Slot Insulation stator-insulation 1× 2 · part
7.2 Rotor Assembly 4 parts rotor-assembly 1× 2 19 assembly
7.2.1 Rotor Shaft rotor-shaft 1× 2 · part
7.2.2 Rotor Core rotor-core 1× 2 · part
7.2.3 Neodymium Magnet neodymium-magnet 16× 32 · part
7.2.4 Ball Bearing ball-bearing 1× 2 · part
7.3 Encoder encoder 1× 2 · part
7.4 Motor Housing motor-housing 1× 2 · part
8 Ball Bearing ball-bearing 8× 8 · part

Where the drafting system is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Textile Draw Frame

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks