CN108975074B

CN108975074B - Glass fiber yarn connecting method

Info

Publication number: CN108975074B
Application number: CN201810456942.9A
Authority: CN
Inventors: 沈耀华; 杜家奎; 曾明泽; 白兰兴; 晏峻; 魏冬; 罗美中
Original assignee: JUSHI GROUP CHENGDU CO Ltd
Current assignee: JUSHI GROUP CHENGDU CO Ltd
Priority date: 2018-05-14
Filing date: 2018-05-14
Publication date: 2020-03-27
Anticipated expiration: 2038-05-14
Also published as: CN108975074A

Abstract

The invention discloses a glass fiber yarn connecting method, which comprises the following steps of; step 1: taking the head end and the tail end of two adjacent yarn groups, pulling out the tail end yarn at a position 15-25 cm away from the yarn groups, manually winding for several circles, and then placing the yarn into the tail end yarn group inner ring; step 2: establishing a first knot point position at a position of 5-15 cm from the tail end yarn to the yarn group, and placing the tail end yarn and the head end yarn on one side to be in a parallel state; and step 3: dividing the head end yarn into A strands and B strands, dividing the B strands into C strands and D strands, enabling the C strands and the D strands to penetrate through the two sides of the tail end yarn and to be recombined into one strand, rotating the combined strand, penetrating the combined strand upwards from the lower side of the ring, and tensioning; and 4, step 4: and (3) cutting off the residual yarn at the tail end of the yarn combined into one strand in the step (3) to align the residual yarn with the A strand of the head end yarn, and finishing knotting. The invention has the advantages that the head ends and the tail ends of the two yarn balls are connected and automatically dispersed in the using process.

Description

Glass fiber yarn connecting method

Technical Field

The invention relates to the field of knotting methods, in particular to a glass fiber yarn connecting method.

Background

With the development of the glass fiber application mechanical automation technology, the glass fiber strand twistless roving is packaged in a whole support in a packaging mode that each yarn group is independent and free of connection, and in the using process, after the previous yarn group is used up, the machine needs to be stopped to be connected with the next yarn group for continuous production, so that the using efficiency of the glass fiber yarn is greatly influenced, and the requirement of automatic high-efficiency production cannot be met. The two yarn groups are connected end to end, so that the requirements of continuous production can be met, but due to the characteristics of glass fiber yarns, the problems of large knots and incapability of automatically dispersing the knots can occur in the ordinary knotting mode.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a glass fiber yarn connecting method.

The purpose of the invention is realized by the following technical scheme: a glass fiber yarn connecting method comprises the following steps;

step 1: taking the head end and the tail end of two adjacent yarn groups, pulling out the tail end yarn at a position 15-25 cm away from the yarn groups, manually winding for several circles, putting the yarn into the inner ring of the tail end yarn group, and keeping the remaining 5-15 cm outside;

step 2: establishing a first knot point position at a position of 5-15 cm from the tail end yarn to the yarn group, and placing the tail end yarn and the head end yarn on one side to be in a parallel state;

and step 3: dividing the head end yarn into A strands and B strands, dividing the B strands into C strands and D strands, enabling the C strands and the D strands to penetrate through two sides of the tail end yarn and be recombined into one strand, rotating the combined strand of yarn, penetrating the combined strand of yarn upwards from the lower side of a ring formed by the rotation of the yarn, and tensioning;

and 4, step 4: cutting off the redundant yarns at the tail end of the combined yarn in the step 3 to enable the redundant yarns to be aligned with the A strand of the head end yarn, and finishing knotting at the moment;

and 5: and finally, combining the A strands and the B strands of yarns which are separated from each other at the head end, and placing the combined yarns at the position where the head end yarn group is connected with the tail end yarn group for pressing.

Specifically, the A strand and the B strand respectively account for one half of the head end yarn.

Specifically, in step 1, the yarn is pulled out of the yarn ball by 20cm, and after being manually wound for several turns, the yarn is placed into the inner ring of the tail end yarn ball, and 10cm is left.

Specifically, in the step 2, a first knot position is established at the position where the tail end yarn is 10cm away from the yarn cluster.

The invention has the following beneficial effects: the connecting method can connect the glass fiber plied twistless roving yarn groups, so that the previous yarn group is smoothly transited to the next yarn group after being used up, and the quality and the efficiency of products are not influenced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of step 1;

FIG. 3 is a schematic diagram of the head end being divided into two streams;

FIG. 4 is a schematic structural diagram of step 3;

in the figure: 1-head end, 2-tail end, 3-A strand, 4-B strand, 5-C strand and 6-D strand.

Detailed Description

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.

As shown in FIGS. 1-4,

example 1

A glass fiber yarn connecting method comprises the following steps;

step 1: taking the head end 1 and the tail end 2 of two adjacent yarn groups, pulling out yarns at the tail end 2 at a position which is 15-25 cm away from the yarn groups, manually winding the yarns for a plurality of circles, putting the yarns into the inner circle of the yarn group at the tail end 2, and keeping the yarn groups with the residual length of 5-15 cm outside;

step 2: a first knot point position is established at a position 5-15 cm away from the yarn group of the tail end 2 yarn, and the tail end 2 yarn and the head end 1 yarn are placed on one side to be in a parallel state;

and step 3: dividing the yarn at the head end 1 into an A strand 3 and a B strand 4, dividing the B strand 4 into a C strand 5 and a D strand 6 in half again, respectively passing the C strand 5 yarn and the D strand 6 yarn from two sides of the yarn at the tail end 2 and recombining the yarns into one strand, rotating the combined yarn, and passing the combined yarn upwards from the lower side of a ring formed by the rotation of the yarn and tensioning the combined yarn;

and 4, step 4: cutting off the redundant yarns at the tail end of the yarn combined into one strand in the step 3 to enable the redundant yarns to be aligned with the strand A3 of the yarn at the head end 1, and finishing knotting at the moment;

and 5: finally, the A strands 3 and the B strands 4 which are separated from the head end 1 are combined together and placed and pressed at the position where the yarn ball at the head end 1 is connected with the yarn ball at the tail end 2.

Further, the A strands 3 and the B strands 4 each account for one half of the yarn at the head end 1.

Example 2

A glass fiber yarn connecting method comprises the following steps;

Further, in the step 1, the yarn is pulled out of the yarn cluster by 15cm, and after the yarn is manually wound for a plurality of circles, the yarn is placed into the inner circle of the yarn cluster at the tail end 2, and the remaining 5cm is outside.

Further, in the step 2, a first knot position is established at the position of 5cm of the yarn from the yarn group at the tail end 2.

Example 3

A glass fiber yarn connecting method comprises the following steps;

Further, the yarn is pulled out of the yarn ball by 25cm in the step 1, and after the yarn is manually wound for a plurality of circles, the yarn is placed into the inner circle of the yarn ball at the tail end 2, and the remaining 15cm is outside.

Further, in the step 2, a first knot position is established at the position, 15cm away from the yarn cluster, of the yarn at the tail end 2.

Example 4

A glass fiber yarn connecting method comprises the following steps;

Further, in the step 1, the yarn is pulled out of the yarn ball by 20cm, and after the yarn is manually wound for a plurality of circles, the yarn is placed into the inner circle of the yarn ball at the tail end 2, and the remaining 10cm is outside.

Further, in the step 2, a first knot position is established at the position of 10cm of the yarn from the yarn group at the tail end 2.

The invention is suitable for connecting glass fiber plying roving yarn groups, can connect independent yarn groups by the connecting mode, realizes that the yarn groups do not need to be replaced by stopping the machine after the previous yarn group is used in the production process, can connect one yarn group to another yarn group after the one yarn group is used by the connecting mode of the invention, and can automatically disperse after the connection.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art can make numerous possible variations and modifications to the described embodiments, or modify equivalent embodiments, without departing from the scope of the invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.

Claims

1. A glass fiber yarn connecting method is characterized in that: comprises the following steps;

step 1: taking the head end (1) and the tail end (2) of two adjacent yarn groups, pulling out the yarn at the tail end (2) from the yarn group at a distance of 15-25 cm, manually winding for several circles, putting the yarn into the inner ring of the yarn group at the tail end (2), and keeping the yarn to be 5-15 cm outside;

step 2: a first knot point position is established at the position 5-15 cm away from the yarn group of the tail end (2), and the tail end (2) yarn and the head end (1) yarn are placed on one side to be in a parallel state;

and step 3: dividing the yarn at the head end (1) into an A strand (3) and a B strand (4), dividing the B strand (4) into a C strand (5) and a D strand (6) in half again, respectively passing the yarn at the C strand (5) and the yarn at the D strand (6) from two sides of the yarn at the tail end (2) and recombining the yarn into one strand, rotating the combined yarn and passing the combined yarn upwards from the lower side of a ring formed by the rotation of the yarn and tensioning the combined yarn;

and 4, step 4: cutting off the redundant yarns at the tail end of the yarn combined into one strand in the step 3 to enable the redundant yarns to be aligned with the strand A (3) of the yarn at the head end (1), and finishing knotting at the moment;

and 5: finally, the A strands (3) and the B strands (4) which are separated from the head end (1) are combined together and placed at the position where the yarn group at the head end (1) is connected with the yarn group at the tail end (2) to be pressed.

2. The glass yarn connecting method according to claim 1, wherein: the A strand (3) and the B strand (4) respectively account for one half of the yarn at the head end (1).

3. The glass yarn connecting method according to claim 1, wherein: in the step 1, the yarn is pulled out of the yarn cluster by 20cm, and after the yarn is manually wound for a plurality of circles, the yarn is placed into the inner circle of the yarn cluster at the tail end (2) and the remaining 10cm is outside.

4. The glass yarn connecting method according to claim 1, wherein: and in the step 2, a first knot position is established at the position of 10cm distance from the yarn group of the tail end (2).