Question:
In Roving frame, the Sliver Breakage stop motion is based on one of the following principles
In Roving frame, the Sliver Breakage stop motion is based on one of the following principles
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Modern roving frames use optical-photoelectric sensors for instant sliver breakage detection.
Updated On: Jun 29, 2026
- Mechanical
- Opto-Mechanical
- Pneumatic
- Optical-Photoelectric
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The Correct Option is D
Solution and Explanation
Concept:
In modern roving frames, continuous monitoring of sliver flow is essential to avoid yarn defects. Sliver breakage must be detected instantly to stop the machine and prevent empty drafting.
This is achieved using advanced sensing systems based on light interruption, i.e., photoelectric detection.
Step 1: Understand detection requirement.
Sliver breakage must be detected without mechanical contact. \[ \text{Requirement: Fast + Non-contact detection} \]
Step 2: Identify sensing principle.
Optical sensors detect presence/absence of sliver using light beam interruption.
Step 3: Compare options.
• Mechanical → outdated, slow
• Opto-mechanical → hybrid but not primary system
• Pneumatic → not used for sliver breakage detection
• Optical-photoelectric → modern standard
Step 4: Final answer selection.
Thus, \[ \boxed{\text{Optical-Photoelectric}} \] So, \[ \boxed{\text{Option (D) is correct.}} \]
Step 1: Understand detection requirement.
Sliver breakage must be detected without mechanical contact. \[ \text{Requirement: Fast + Non-contact detection} \]
Step 2: Identify sensing principle.
Optical sensors detect presence/absence of sliver using light beam interruption.
Step 3: Compare options.
• Mechanical → outdated, slow
• Opto-mechanical → hybrid but not primary system
• Pneumatic → not used for sliver breakage detection
• Optical-photoelectric → modern standard
Step 4: Final answer selection.
Thus, \[ \boxed{\text{Optical-Photoelectric}} \] So, \[ \boxed{\text{Option (D) is correct.}} \]
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