Yarn cleaner and cutting device for a yarn cleaner
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cutting devices in yarn cleaners are prone to fiber accumulation in the housing opening, leading to increased friction and unreliable cutting performance due to loose fibers entering the housing interior.
Innovation Solution
The cutting device is designed with a housing body featuring a bearing section and two housing openings, one with a perpendicular opening edge and another with a coaxial opening edge, along with a ventilation opening, to prevent fiber ingress and maintain a positive pressure within the housing, ensuring reliable cutting performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cutting device is arranged in the inlet area of the housing body, then the cutting position is optimized for yarn processing, but fiber accumulation occurs in the housing opening leading to increased friction and reduced cutting reliability
Solution Approach 1:
The cutting device is extracted from the high-fiber-concentration inlet area and repositioned to the front end of the housing body, removing it from the harmful fiber-laden environment while maintaining its cutting function on the yarn
Solution Approach 2:
A thread guide element is introduced as an intermediary component between the yarn and the cutting device, allowing the yarn to be positioned correctly for cutting while keeping the cutting device itself away from the fiber accumulation zone
2Strength
If the cutting device is enclosed in the housing body, then protection is provided, but loose fibers enter through the housing opening and cause increased friction reducing cutting force
Solution Approach 1:
The cutting device is extracted from the enclosed housing interior and positioned externally at the front end of the housing body, eliminating the problem of fiber ingress through housing openings while maintaining structural protection through the thread guide element
3Reliability
If the cutting device is positioned at the front end of the housing body, then the thread guide area remains thread-free after cutting, but the cutting device is exposed to higher fiber concentration in the inlet area
Solution Approach 1:
The thread guide element serves as a mediator that handles the yarn positioning and guidance functions, allowing the cutting device to remain exposed at the front end for effective cutting while the thread guide element itself manages the yarn flow to keep the thread guide area clean
Data Source
Figure 1
Figure 2~3
AI summary
The invention relates to a yarn cleaner (10) for a workstation of a textile machine with a cutting device for removing defects from a yarn, and a cutting device for a yarn cleaner (10) that can be arranged at a workstation of a textile machine, comprising a housing body (14) comprising a housing base body (11), a housing cover (15) that at least partially covers the housing base body (11) and together with the housing base body (11) defines an interior housing space (16), a first housing opening (23), and a cutting device (1) with a cutting medium carrier (5) having a cutting blade (4), a cutting medium drive (6) arranged in the interior housing space (16) for adjusting the cutting medium carrier (5) between a cutting position far from the housing and a rest position close to the housing, and a connecting element (6) connecting the cutting medium drive (6) and the cutting medium carrier (5).The drive element (21) is adjustable and arranged in the first housing opening (23). To provide a yarn cleaner (10) with a cutting device and a cutting device that ensures reliable separation of the yarn when required, the housing body (14) has a bearing section (27) for adjustable reception of the cutting element carrier (5) and a second housing opening (24) adjacent to the bearing section (27) with an opening edge (26) extending perpendicular to the adjustment direction of the cutting element carrier (5) and abutting the cutting element carrier (5).