<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Currently, the knotting of chemical fiber filament packages in factories primarily comprises manual operations. It also has a high labor intensity and is subject to artificial subjective factors, due to which it is difficult to guarantee the quality of the finished fiber products. Furthermore, it also significantly restricts the intelligent construction of chemical fiber production. This work employs partially oriented yarn (POY) and full draw yarn (FDY) to develop an automatic knotting device. The catenary theory was used to confirm the state of the yarn and to determine the relevant parameters of the tension mechanism. The results showed that the developed automatic knotting device satisfactorily meets the conditions required for manual knotting. The curve equation that was calculated using the catenary conformations of the yarn state verified that the actual yarn state was consistent with the theory. Moreover, the work provides a theoretical foundation for subsequent mechanism optimizations.</p>
</abstract>

Currently, the knotting of chemical fiber filament packages in factories primarily comprises manual operations. It also has a high labor intensity and is subject to artificial subjective factors, due to which it is difficult to guarantee the quality of the finished fiber products. Furthermore, it also significantly restricts the intelligent construction of chemical fiber production. This work employs partially oriented yarn (POY) and full draw yarn (FDY) to develop an automatic knotting device. The catenary theory was used to confirm the state of the yarn and to determine the relevant parameters of the tension mechanism. The results showed that the developed automatic knotting device satisfactorily meets the conditions required for manual knotting. The curve equation that was calculated using the catenary conformations of the yarn state verified that the actual yarn state was consistent with the theory. Moreover, the work provides a theoretical foundation for subsequent mechanism optimizations.

Design Of the Tension Mechanism Of a Knotter And Optimization Of the Motion Parameters

Fibres & Textiles in Eastern Europe

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Currently, the knotting of chemical fiber filament packages in factories primarily comprises manual operations. It also has a high labor intensity and is...

POY	FDY	factor	Level
POY	FDY	factor	1	2	3	4
A	D	Tightening pulse (Piece)	22000	22300	22600	22900
B	E	Tightening speed/(r/s)	1	2	3	4
C	F	Ring size/mm	45mm	48mm	51mm	54mm

No.	A	B	C	Number of knots (piece)	D	E	F	Number of knots (piece)
1	1	1	1	3	1	1	1	9
2	1	2	2	5	1	2	2	5
3	1	3	3	6	1	3	3	0
4	1	4	4	4	1	4	4	0
5	2	1	2	5	2	1	2	8
6	2	2	1	6	2	2	1	7
7	2	3	4	3	2	3	4	2
8	2	4	3	4	2	4	3	0
9	3	1	3	9	3	1	3	4
10	3	2	4	3	3	2	4	1
11	3	3	1	7	3	3	1	6
12	3	4	2	7	3	4	2	3
13	4	1	4	4	4	1	4	0
14	4	2	3	6	4	2	3	4
15	4	3	2	7	4	3	2	5
16	4	4	1	6	4	4	1	6

Design Of the Tension Mechanism Of a Knotter And Optimization Of the Motion Parameters

Article Category: Research Article

Publié en ligne: 30 déc. 2022

Pages: 12 - 18

DOI: https://doi.org/10.2478/ftee-2022-0048

Mots clés
chemical fiber filament, knotter, catenary, knotting rate

© 2022 Jiahao Lan, et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Fig. 8

Fig. 9

Test parameters

test results and analysis

No.	A	B	C	Number of knots (piece)	D	E	F	Number of knots (piece)
1	1	1	1	3	1	1	1	9
2	1	2	2	5	1	2	2	5
3	1	3	3	6	1	3	3	0
4	1	4	4	4	1	4	4	0
5	2	1	2	5	2	1	2	8
6	2	2	1	6	2	2	1	7
7	2	3	4	3	2	3	4	2
8	2	4	3	4	2	4	3	0
9	3	1	3	9	3	1	3	4
10	3	2	4	3	3	2	4	1
11	3	3	1	7	3	3	1	6
12	3	4	2	7	3	4	2	3
13	4	1	4	4	4	1	4	0
14	4	2	3	6	4	2	3	4
15	4	3	2	7	4	3	2	5
16	4	4	1	6	4	4	1	6

No.	A	B	C	Number of knots (piece)	D	E	F	Number of knots (piece)
1	1	1	1	3	1	1	1	9
2	1	2	2	5	1	2	2	5
3	1	3	3	6	1	3	3	0
4	1	4	4	4	1	4	4	0
5	2	1	2	5	2	1	2	8
6	2	2	1	6	2	2	1	7
7	2	3	4	3	2	3	4	2
8	2	4	3	4	2	4	3	0
9	3	1	3	9	3	1	3	4
10	3	2	4	3	3	2	4	1
11	3	3	1	7	3	3	1	6
12	3	4	2	7	3	4	2	3
13	4	1	4	4	4	1	4	0
14	4	2	3	6	4	2	3	4
15	4	3	2	7	4	3	2	5
16	4	4	1	6	4	4	1	6

Design Of the Tension Mechanism Of a Knotter And Optimization Of the Motion Parameters

Article Category: Research Article

Publié en ligne: 30 déc. 2022

Pages: 12 - 18

DOI: https://doi.org/10.2478/ftee-2022-0048

Mots cléschemical fiber filament, knotter, catenary, knotting rate

© 2022 Jiahao Lan, et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Fig. 8

Fig. 9

Test parameters

test results and analysis

Mots clés
chemical fiber filament, knotter, catenary, knotting rate

No.	A	B	C	Number of knots (piece)	D	E	F	Number of knots (piece)
1	1	1	1	3	1	1	1	9
2	1	2	2	5	1	2	2	5
3	1	3	3	6	1	3	3	0
4	1	4	4	4	1	4	4	0
5	2	1	2	5	2	1	2	8
6	2	2	1	6	2	2	1	7
7	2	3	4	3	2	3	4	2
8	2	4	3	4	2	4	3	0
9	3	1	3	9	3	1	3	4
10	3	2	4	3	3	2	4	1
11	3	3	1	7	3	3	1	6
12	3	4	2	7	3	4	2	3
13	4	1	4	4	4	1	4	0
14	4	2	3	6	4	2	3	4
15	4	3	2	7	4	3	2	5
16	4	4	1	6	4	4	1	6