CN-115976747-B - Follow-up type swing yarn guiding and edge locking device and method

CN115976747BCN 115976747 BCN115976747 BCN 115976747BCN-115976747-B

Abstract

The invention discloses a follow-up swing yarn-guiding overlock device and a method, wherein the device comprises a follow-up yarn-guiding platform, a swing yarn-guiding mechanism, a tension compensation yarn-feeding mechanism and a continuous overlock mechanism, wherein the swing yarn-guiding mechanism and the tension compensation yarn-feeding mechanism are arranged on the follow-up yarn-guiding platform and follow the follow-up yarn-guiding platform to follow the current opening movement of a fabric; the continuous serging mechanism and the follow-up yarn guiding platform are respectively arranged at two sides of the fabric in a relative mode, and move along the width direction of the fabric along with the yarn guiding position. The yarn guiding platform can follow the current opening of the fabric to move, the swinging yarn guiding mechanism guides yarns from the position of the long and narrow optimal opening, continuous serging is completed through the continuous serging mechanism, and the whole process supplies yarns through the tension compensation yarn supplying mechanism and controls the tension of the yarns to be constant. The invention solves the difficult problems of large-breadth, large-thickness and high-density yarn guiding and edge locking forming of the fabric, and improves the production efficiency and the forming consistency of the fabric.

Inventors

SONG TAO
ZHOU BAOSHENG
ZHANG BO
RUAN JIAN
JI SHEN
DAI MANYI
LIANG SULAN

Assignees

南京玻璃纤维研究设计院有限公司

Dates

Publication Date: 20260512
Application Date: 20221206

Claims (5)

1. The follow-up type swinging yarn guiding and serging device is characterized by comprising a follow-up yarn guiding platform (1), a swinging yarn guiding mechanism (2), a tension compensation yarn feeding mechanism (3) and a continuous serging mechanism (4), wherein: The swing yarn guiding mechanism (2) and the tension compensation yarn feeding mechanism (3) are arranged on the follow-up yarn guiding platform (1) and move along with the current opening of the follow-up fabric of the follow-up yarn guiding platform (1); the continuous serging mechanism (4) and the follow-up yarn guiding platform (1) are respectively arranged at two sides of the fabric in a relative mode, and move along the width direction of the fabric along with the yarn guiding position; the swing yarn guiding mechanism (2) is used for guiding yarns from an opening position and completing continuous serging through the continuous serging mechanism (4), and the tension compensation yarn feeding mechanism (3) is used for feeding yarns and controlling the tension of the yarns to be constant; the follow-up yarn guiding platform (1) comprises an advancing platform (11), a lateral follow-up platform (12), an advancing drive (13), an advancing guide mechanism (14), a lateral drive (15) and a lateral guide mechanism (16), wherein the lateral follow-up platform (12) is arranged on the advancing platform (11), is powered by the lateral drive (15) to reciprocate along the lateral direction and is guided by the lateral guide mechanism (16), and the advancing platform (11) is powered by the advancing drive (13) to reciprocate along the forward direction and is guided by the advancing guide mechanism (14); The swinging yarn guiding mechanism (2) comprises a swinging motor (21), a swinging rod (22) and a yarn guiding rod (23), wherein the swinging yarn guiding mechanism (2) is arranged on a lateral follow-up platform (12) and moves along with the lateral follow-up platform (12), the swinging rod (22) is driven by the swinging motor (21) to drive the yarn guiding rod (23) to swing back and forth, and the yarn guiding action is finished by guiding the yarn from an optimal opening of a fabric; The two swing rods (22) are respectively connected with the swing motor (21) and the bearing seats on the lateral follow-up platform (12), the yarn guiding rod (23) is in a hook shape, forms a space parallelogram with the two swing rods (22), realizes space swing motion under the driving of the swing motor (21), and guides yarns from the optimal position of the diamond-shaped long and narrow opening when the yarn guiding rod (23) moves to the highest point through the combined motion of the follow-up yarn guiding platform and the swing motor so as to finish yarn guiding action; The continuous serging mechanism (4) comprises a follow-up module (41), a serging driving mechanism (42) and a crochet hook (43), wherein the follow-up module (41) drives the serging driving mechanism (42) to move along with the current yarn guiding position, and the crochet hook (43) is arranged on the serging driving mechanism (42) and is used for hooking yarns at a crotch of a yarn guiding rod (23) and realizing a serging function through continuous locking of a reciprocating motion stroke of the crochet hook; The lockstitch driving mechanism (42) is a crank slide block mechanism and comprises a lockstitch connecting rod (421) and a lockstitch guide wheel (422), the lockstitch connecting rod (421) reciprocates along the width direction under the action of the lockstitch guide wheel (422) and adjusts the movement stroke through a screw, and the crochet hook (43) is arranged on the lockstitch connecting rod (421) and is used for hooking yarns and forming continuous lock catches.
2. The follow-up swing yarn guiding and serging device according to claim 1, characterized in that the advancing guide mechanism (14) and the lateral guide mechanism (16) adopt linear guide rails to make the advancing platform (11) and the lateral follow-up platform (12) run stably.
3. The follow-up swing yarn guiding and serging device according to claim 1, characterized in that the tension compensation yarn feeding mechanism (3) comprises a yarn frame (31), a yarn guiding wheel (32) and a tension compensation mechanism (33), wherein the yarn guiding wheel (32) and the tension compensation mechanism (33) are sequentially arranged on the yarn frame (31) from top to bottom, and yarn tension uniformity is controlled.
4. A follow-up oscillating yarn threading and serging device according to claim 3, characterized in that said tension compensation means (33) comprises a tension control unit (331) and a yarn storage drum (332), said yarn storage drum (332) being controlled by said tension control unit (331) to be retracted and extended, and to adjust the yarn tension constant throughout the yarn threading and serging process.
5. A follow-up type swing yarn guiding and edge locking method, based on the follow-up type swing yarn guiding and edge locking device as set forth in any one of claims 1-4, the following specific working process is realized: after a certain row of openings of the three-dimensional fabric, the follow-up yarn guiding platform moves to the opening position of the yarn guiding area, and the swing yarn guiding mechanism guides yarns from the diamond-shaped long and narrow openings of the current row; Meanwhile, the continuous serging mechanism is driven to the current opening position, hooks the yarn and forms a continuous lock catch with the last circulating yarn, and the serging circulation is completed; After the overlock cycle is completed, the follow-up yarn guiding platform follows to the position of the next row of openings, and enters the next yarn guiding cycle.

Description

Follow-up type swing yarn guiding and edge locking device and method Technical Field The invention relates to the textile machinery technology, in particular to a follow-up swing yarn guiding and serging device and method. Background With the increasing demands of the market for the three-dimensional fabrics, the three-dimensional fabric forming process is also continuously developed, and the crossing demands of the three-dimensional fabric forming equipment in the mechanical and automatic directions are accompanied. The yarn guiding and the overlock are taken as an important ring of the three-dimensional fabric forming process, and the realization of automatic lifting is particularly important. The traditional forming mode introduces yarns into the diamond-shaped long and narrow opening channels, and the method of forming discontinuous lockstitch by using the edge needle has lower production efficiency and poorer fabric forming consistency when processing three-dimensional fabrics with large breadth, large thickness and high density. Disclosure of Invention The invention aims to provide a follow-up swing yarn guiding and serging device and method. The technical scheme for realizing the purpose of the invention is that the follow-up swing yarn guiding and serging device comprises a follow-up yarn guiding platform, a swing yarn guiding mechanism, a tension compensation yarn feeding mechanism and a continuous serging mechanism, wherein: the swing yarn guiding mechanism and the tension compensation yarn feeding mechanism are arranged on the follow-up yarn guiding platform and move along with the current opening of the follow-up fabric of the follow-up yarn guiding platform; the continuous serging mechanism and the follow-up yarn guiding platform are respectively arranged at two sides of the fabric in a relative mode, and move along the width direction of the fabric along with the yarn guiding position; The swing yarn guiding mechanism is used for guiding yarns from an opening position and completing continuous serging through the continuous serging mechanism, and the tension compensation yarn feeding mechanism is used for feeding yarns and controlling the tension of the yarns to be constant. The follow-up yarn guiding platform comprises an advancing platform, a lateral follow-up platform, an advancing drive, an advancing guiding mechanism, a lateral drive and a lateral guiding mechanism, wherein the lateral follow-up platform is arranged on the advancing platform, is provided with power by the lateral drive to reciprocate along the lateral direction and is provided with guiding by the lateral guiding mechanism, and the advancing platform is provided with power by the advancing drive to reciprocate along the forward direction and is provided with guiding by the advancing guiding mechanism. Furthermore, the advancing guide mechanism and the lateral guide mechanism adopt linear guide rails, so that the advancing platform and the lateral follow-up platform can stably operate. The swinging yarn guiding mechanism comprises a swinging motor, a swinging rod and a yarn guiding rod, wherein the swinging yarn guiding mechanism is arranged on a lateral follow-up platform and moves along with the lateral follow-up platform; furthermore, two swinging rods are respectively connected with the swinging motor and the bearing seat on the lateral follow-up platform, the yarn guiding rod is in a hook shape, a space parallelogram is formed by the two swinging rods, the space swinging motion is realized under the driving of the swinging motor, and the yarn guiding rod guides yarns from the optimal position of the diamond-shaped long and narrow opening when the yarn guiding rod runs to the highest point through the combined motion of the follow-up yarn guiding platform and the swinging motor, so that the yarn guiding action is completed. Further, the tension compensation yarn supply mechanism comprises a yarn frame, a yarn guiding wheel and a tension compensation mechanism, wherein the yarn guiding wheel and the tension compensation mechanism are sequentially arranged on the yarn frame from top to bottom, and yarn tension is controlled to be uniform. Further, the tension compensation mechanism comprises a tension control unit and a yarn storage barrel, wherein the yarn storage barrel is controlled by the tension control unit to be retracted and released, and yarn tension in the whole yarn guiding and serging process is regulated to be constant. Further, the continuous serging mechanism comprises a follow-up module, a serging driving mechanism and a crochet hook, wherein the follow-up module drives the serging driving mechanism to move along with the current yarn guiding position, and the crochet hook is arranged on the serging driving mechanism and is used for hooking yarns at the crotch of the yarn guiding rod, and continuous lock catch is realized through the reciprocating movement stroke of the crochet hook. The device comprises a