一种丙纶PP纱热辊均匀拉伸定型装置
By introducing positioning grooves and cleaning structures into the polypropylene (PP) yarn hot roller stretching and setting device, the problems of yarn deviation, entanglement, and adhesion were solved, improving production efficiency and simplifying the cleaning process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGYUAN YITONG WEAVING CO LTD
- Filing Date
- 2025-09-08
- Publication Date
- 2026-07-17
AI Technical Summary
When using existing polypropylene (PP) yarn hot roller stretching and setting devices, the surface of the hot roller is smooth, and the coefficient of friction is small when it comes into contact with the yarn. This causes the yarn to easily deviate from the preset path and become entangled or adhered, affecting production efficiency and making it difficult to clean.
A device is designed that includes a base, a rotary motor, a shaping roller, a positioning groove, a limiting rod, a limiting spring, a fixing frame, cleaning cotton, a return spring, and cotton teeth. The rotary motor drives the shaping roller to rotate for stretching and shaping, and the positioning groove is used to position the yarn. After stretching is completed, the surface of the shaping roller is cleaned by cleaning cotton and cotton teeth.
It effectively avoids yarn deviation and entanglement, reduces downtime for maintenance, improves production efficiency, and removes oil stains and yarn debris from the surface of the setting roller, reducing the probability of yarn sticking to the hot roller.
Smart Images

Figure CN224513726U_ABST
Abstract
Claims
1. A polypropylene (PP) yarn hot roller uniform stretching and shaping device, comprising a base (1), characterized in that: A heater (2) is installed on the side wall of the base (1). A rotary motor (3) is installed on the side of the base (1) away from the heater (2). A shaping roller (4) is installed on the outer wall of the rotary motor (3). A positioning groove (5) is opened on the outer wall of the shaping roller (4). A limit rod (6) is installed on the top of the base (1). A limit spring (7) is installed on the outer wall of the limit rod (6). A fixing frame (8) is installed on the top of the limit rod (6). A cleaning cotton (9) is installed on the inner wall of the fixing frame (8). A reset spring (10) is installed on the inner wall of the cleaning cotton (9). A top rod (11) is installed on the outer wall of the reset spring (10). A cotton tooth (12) is installed on the bottom of the cleaning cotton (9).
2. The device according to claim 1, characterized in that it comprises a plurality of said pairs of rollers (2, 3) arranged in succession along the path of the yarn (4) to be treated. The shaping roller (4) forms a rotating structure with the base (1) via a rotary motor (3), and the positioning grooves (5) are evenly distributed around the central axis of the shaping roller (4).
3. The device according to claim 1, characterized in that it comprises a plurality of said pairs of rollers (2, 3) arranged in succession along the path of the yarn (4) to be treated. The fixed frame (8) is movably connected to the limiting rod (6), and the fixed frame (8) forms a telescopic structure with the base (1) through the limiting spring (7).
4. The device according to claim 1, characterized in that it is a device for the uniform drawing and setting of polypropylene (PP) yarns on hot rolls. The cleaning cotton (9) is inserted into the fixing frame (8), and the top rod (11) forms a telescopic structure with the cleaning cotton (9) through the return spring (10).
5. The device according to claim 1, characterized in that it is a device for the uniform drawing and setting of polypropylene (PP) yarns on hot rolls. The top rod (11) is engaged with the fixing frame (8), and the cotton tooth (12) is tightly fitted with the positioning groove (5).