Drafting Machines TRIZ Cases

See how a third sliver guide positioned between roller pairs prevents lateral movement and unev

Actuating section protrudes beyond support arm for easy grasping and removal of upper roller bodies in textile drafting units.

Adaptive stepper current control tracks drafting load torque without encoders, improving efficiency and detecting fiber band or roller abnormalities.

Separate fiber webs are drawn at independent speeds and blended by tangential air jets in one spinning chamber, cutting recalibration and extra processing.

An apron guide roller and segmented wedge stop structure shorten lower belt stopping time and reduce excess roving feed after breakage.

Reference structures and spring loading align upper rollers precisely, easing drafting unit maintenance while keeping clamping force consistent.

An angled suction-slit inlet keeps airflow fast and stable, pulling fibers onto the transport belt sooner to reduce disorder and stabilize yarn quality.

A grooved clamping roller lets the filament bypass the clamping line, enabling speed variation and full staple fiber coverage in core yarn.

A coupling gap between adjacent countershafts and holding portions simplifies shaft mounting and removal without changing roller stand intervals.

A movable pull rod releases the belt in a non-functional state, enabling replacement without dismantling the spinning mechanism and reducing downtime.

A Y-shaped elastic lip locks onto a reusable support element, so worn textile-roller cleaning lips can be replaced without discarding the mount.

Airflow extracts loose fibres for false-twist yarn formation, reducing fiber entrapment, cleaning stoppages, and fiber loss.

This case coordinates two independent feed rollers so their combined speed supports consistent yarn properties during rotor spinning.

A bearing element creates a precise pivot axis, securing the air spinneret while allowing tool-free removal from the drafting unit.

A vacuum suction end part uses replaceable covers and openings to adapt drafting-unit fiber fly removal across fiber types.

Cam mechanisms adjust roller separation angles to prevent fiber accumulation between top rollers and cleaning modules.

Adjustable rollers in a reciprocating twisting stage vary twist imparted to slivers, resolving fixed profile limitations.

Segmented tensioning applies high pressure at back aprons to limit roving breaking while maintaining low pressure at middle aprons for smooth fiber feeding.

A bayonet lock suction nozzle with tubular extensions creates a gap seal to minimize pressure losses in ring spinning machines.

A false twist element imparts alternating twists to the sliver, preventing fiber deflection by air flow and reducing yarn hairiness during high-speed spinning.

Offset insertion channels align fiber webs to eliminate barring and color variability in mixed yarn production.

A detachable guide element attaches to a textile cage support via snap connections.

Dynamic speed adjustment resolves sliver adhesion deterioration during start and stop phases by modifying tension delay ratios.

Continuous diameter measurement allows dynamic speed adjustments that maintain precise configuration correspondence despite drive system inertia.

A spinning roller uses a dual-layer elastic structure with distinct hardness zones to balance fiber holding and surface durability.

A variable-length spring element connects upper and lower delivery rollers in a textile drafting unit to maintain consistent loading force.

Extending the guidance groove outside the upper apron track width reduces deflection edge tilting and maintains parallelism between drafting aprons.

Integrated clamping element merges fastening and suction functions to eliminate extraction tubes and special sealing elements.

A textile drafting cage uses rotatable tensioning elements to maintain guide strap alignment.

A spinning draft device merges middle and back apron pairs to adjust blending ratios without adding complex rollers, preventing rotation failure.

A rotatable guide roller directs fiber slivers into a suction opening, eliminating the spinning triangle that causes non-uniform yarn and edge fiber exposure.

Segmented wear edge on plastic fiber guide adapts to drafting rollers, resolving manufacturing precision trade-offs.

Axial displacement of the fiber guide relative to the changing element compensates for thermal expansion and oscillating movements during operation.

Transverse tensioning element compensates for strap length tolerances, ensuring precise spacing adjustment and consistent yarn quality.

An air outlet opening in the nonwoven nozzle guides airflow through the guide channel, preventing air build-up and resolving threading process stability issues.

A textile drafting compressor unit with a displaceable guide and holder assembly for precise fiber compression.

Segmented support tubes pivot to compensate for positioning errors, preventing fiber contamination on rubber guides.

A fiber bundle condensing device positions shaft couplings for bolt access.

A detachable support structure enables rapid installation of a spinning machine compaction device driven by delivery rollers.

Third compressor with wider passage cross section guides edge fibers around core strands, reducing fiber loss and improving yarn strength.

Side-mounted display means on a top roll loading arm enable quick load verification without interrupting spinning machine operation.

Segmenting suction channels into local sections reduces energy consumption from friction losses in ring spinning machines.

A load carrier bridge uses a compression spring to apply force to the clamping roller.

Support element prevents guide element rotation during warping to maintain positioning accuracy.

Abrupt braking of delivery rollers compresses fibers to create short yarn thickening effects at high production speeds.

Opposing twist directions in a coated multifilament yarn improve knot strength without degrading circularity or causing tangling.

Preliminary action stops twisting before switching roving sources, allowing untwisted ends to join seamlessly without compromising yarn strength.

Segmented lever and screw mechanisms direct torque onto the pivot axis, preventing borehole damage during fastening.

A labyrinth seal structure prevents fiber accumulation on a rotating suction drum drive interface.

Segmented wear-resistant components in a textile compression unit reduce manufacturing costs while preventing fiber penetration.

Alternating fused and non-fused yarn regions prevent entanglement while maintaining belt pliancy in fiber bundle concentrating devices.