KR20130102000A - Method for preventing ravel of knitting yarn - Google Patents

Abstract

PURPOSE: A method for preventing ravel of knitting yarn is provided to improve the productivity of knit fabric by controlling an increase in knitting course number even in case of using weft knitting machine. CONSTITUTION: A method for preventing ravel of knitting yarn is as follows. At least a pair of needle beds is equipped forward and backward. When the knitted fabric, in which at least one way of the yarn-in and yarn-out parts where the knitting yarn is switched is arranged, is knitted using a weft knitting machine, the method for preventing ravel of knitting yarn is performed against the yarn-in and yarn-out parts.

Description

How to prevent loosening of knitting yarn {METHOD FOR PREVENTING RAVEL OF KNITTING YARN}

The present invention is a yarn-in section or yarn-out section in which a knitting yarn is switched during the knitting of a knitted fabric when the knitted fabric is knitted using a flat knitting machine. It relates to a loosening prevention method of the knitting yarn to prevent the loosening of the knitting yarn in the section.

In a knitted fabric having a border pattern, an intasia pattern, or the like, the knitting is switched during the knitting of the knitted fabric. In the part to which this knitting yarn is switched, there is a thread draining part from which the knitting yarn is drawn out from the knitting fabric knitted by the knitting yarn before switching, and the thread filling portion which introduces the knitting yarn after the switching into the knitting fabric knitted by the knitting yarn before switching. It is necessary to prevent the knitting yarn from loosening in the thread inserting part and the thread extracting part. The present applicant proposes a loosening prevention method of knitting yarn which makes this loosening prevention in a flat knitting machine (for example, refer patent document 1).

In Patent Literature 1, two joining points formed of a locking loop are formed when threading or unthreading a thread, and one joining point is different from the other joining point on the surface side of the existing stitch. By knitting on the back side of the stitch, the knitting yarn is prevented from loosening. Here, the existing stitch is a stitch already bonded to a needle bed (needle bed) before the formation of the joining point, and the existing stitches overlapping each joining point are in a position close to each other.

International Publication WO 2010/073491

In the knitting prevention method of patent document 1, when the flat knitting machine with a small cam system is used, there exists a possibility that it may lead to the increase of the number of knitting courses.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a knitting prevention method of knitting yarn which can prevent loosening of the knitting yarn in a simple process without using a transfer.

The present invention solves the above problems by preventing the knitting of the knitting yarn by using the locking function of the needle bed.

The present invention has at least a pair of front and rear needle beds, and any one of the front and rear needle racks can be racked from side to side, using a flat knitting machine, during the knitting of the knitted fabric. When knitting a knitted fabric having at least one of a yarn-in part and a yarn-out part to which the knitting yarn is switched, the knitting yarn in the thread inserting part or the thread releasing part It relates to a loosening prevention method of knitting yarn to prevent loosening. The unwinding prevention method of the knitting yarn of this invention is characterized by including the following processes (alpha)-(delta).

[Process alpha] ... A first stitch string including a first stitch, a second stitch and a third stitch continuous in the knitting width direction is knitted. Here, in the process (alpha) in this invention, the 1st stitch-the 3rd stitch are arrange | positioned so that any one of following [A] or [B] may be satisfied.

[A] The first stitch and the third stitch are arranged on one needle bed and the second stitch on the other needle bed.

[B] The second stitch and the third stitch are arranged on one needle bed and the first stitch on the other needle bed.

[Process beta] ... After locking the needle bed to replace the positions in the knitting width directions of the first stitch and the second stitch, the fourth stitch, the fifth stitch, and the fifth stitch continuing in the respective wale directions of the first stitch, the second stitch, and the third stitch. A second stitch string comprising 6 stitches is formed. For example, in the step α, if the knitting needle Y to which the second stitch is bonded is on the right side with respect to the knitting needle X to which the first stitch is bonded, in step β, the knitting needle Y is left to the knitting needle X. Rack any one needle bed as much as possible. Moreover, it is preferable to make a racking pitch into the range of 1-4 pitches so that thread break may not arise.

[Process γ] ... The needle bed is racked in the opposite direction to the step β to return the positional relationship between the first stitch and the second stitch to the same state as the step α. For example, in the relationship between the knitting needles X and Y, at step γ, any one needle bed is racked so that the knitting needle Y is on the right side than the knitting needle X. At this time, the knitting needle Y may be on the right side of the knitting needle X, and the racking pitch of the step γ may be different from the racking pitch of the step β.

[Process δ] ... A cross-over yarn formed by knitting a third stitch row continuing in the wale direction of the second stitch row, and formed between the first stitch and the second stitch and between the second stitch and the third stitch; The loosening of the knitting yarn in the thread insertion section or the thread releasing section is prevented by determining the positional relationship of the cross yarns formed between the fourth stitch and the fifth stitch and between the fifth stitch and the sixth stitch.

One embodiment of the method for preventing loosening of the knitting yarn in the present invention may include a form in which a stitch is attached to a stitch bonded to the needle bed before the step α at the thread insertion portion and after the step γ at the thread extraction portion. .

According to the knitting prevention method of the present invention, in the vicinity of a place where the first stitches to the third stitches of the first stitch row and the fourth stitches to the sixth stitches of the second stitch row continuous in the wale direction are formed. The crossroads are in a complicated intersecting state. For this reason, the loosening of the knitting yarn can be prevented at the said place. In addition, in the present invention, the knitting prevention method for knitting is prevented from loosening the knitting yarn without transferring the stitch by using the needle bed racking, so that the number of knitting courses is increased even when a flat knitting machine having a small cam system is used. It can be suppressed. For example, in a knitted fabric having an intersha pattern that is knitted using a plurality of knitting yarns, since the threading and unthreading are frequently performed, the knitting is suppressed by suppressing the increase in the number of knitting courses by the knitting prevention method of the present invention. Can improve the productivity of the fabric.

By putting a chin at the time of threading and unthreading by the knitting prevention method of the knitting yarn in this invention, the unwinding prevention of the knitting yarn in a threading part and a thread releasing part can be strengthened more.

1 is a knitting process diagram relating to a method of preventing loosening of the knitting yarn shown in the embodiment.

Hereinafter, a method of preventing loosening of the knitting yarn of the present invention will be described with an example in which the knitting yarn in the border pattern is switched based on FIG. In the knitting described in the embodiment, a pair of front and rear needle beds extending in the left-right direction and facing each other in the front-rear direction are provided, and one of the front and rear needle beds is racked left and right. A racking capable two bed flat knitting machine was used. Of course, the flat knitting machine used may be a four-bed flat knitting machine.

≪ Embodiment 1 >

Fig. 1 is a knitting process chart showing the knitting procedure of the loosening prevention method. "S + number" in the first column on the left side of Fig. 1 indicates the process number, "arrow + 1P" in the second column indicates the racking direction and racking pitch of the needle bed, and the "arrow" in the third column. (K is accompanied by knitting) 'indicates the direction of movement of the yarn feeder, and the fourth column shows the shape of the actual knitting operation. In the fourth column, a mark denotes a new stitch (including a locking loop), a mark denotes a stitch coupled to a needle bed, a mark denotes a tuck stitch, and a mark denotes a yarn feeder. Moreover, as shown in the 4th column, the flat knitting machine used for this embodiment opposes in the state which shifted the front needle bed (hereafter FB) and back needle bed (hereafter BB) by 0.5 pitch. In each step, the racking is performed first and the knitting is performed later.

The state in which the yarn feeder 8 is moved to the left direction of the paper surface and one stripe of the border pattern is knitted in S0. From the state of S0, yarn-out is performed at S1 to S3 and S5 shown below, and yarn-in at S4 to S7.

In S1, the yarn feeding port 8 is moved in the right direction of the sheet of paper to knit the first stitch string 10 (process α in thread extraction). The first stitch string 10 includes the first stitch 1, the second stitch 2, and the third stitch, which are arranged side by side in the knitting direction of the first stitch string 10 from the start end side thereof. 3) is provided. The second stitch 2 is a hook loop knitted on the BB, and the first stitch 1 and the third stitch 3 are stitches continuously knitted in the wale direction of the stitches joined to the FB in S0. . The second stitch 2 may be formed by a split stitch.

In S2, after the BB is racked one pitch in the left direction of the ground, the yarn feeding port 8 is moved in the left direction of the ground, and the second stitch row 20 which is continued in the wale direction of the first stitch row 10 is knitted. (Step β in thread extraction). The second stitch rows 20 are arranged in the order opposite to the knitting direction of the second stitch rows 20 in the order from the end side thereof, the fifth stitch 5, the fourth stitch 4, and The sixth stitch 6 is provided.

In S3, BB is racked one pitch in the right direction of the sheet of paper so that the left and right positional relationship between the first stitch 1 and the second stitch 2 is the same as the end point of S1 (process γ in thread removal). . In this way, the first stitch 1, the second stitch 2, and the third stitch 3 of the first stitch row 10 and the fourth stitch of the second stitch row 20 continuous in the wale direction ( 4) In the vicinity of the place where the fifth stitch 5 and the sixth stitch 6 are formed, cross-over yarns connecting these stitches 1 to 6 are in a complicated state. .

In addition, in S3, the yarn feeder 8 is moved to the right side of the sheet of paper, so that the stitches on the right side of the sheet of paper (the opposite side to the side from which the yarn is drawn) are stitched from the stitches of the second stitch rows 20 to the BB. Tuck Then, in step S3, the yarn feeder 8 is further moved to the left side of the ground, the knitting yarn from the yarn feeder 8 comes out of the knitting width direction of the knitted fabric, and the knitting of the stripes by the yarn feeder 8 is made. Quit. Moreover, although the knitting of the stripe by the yarn feeder 8 was complete | finished, the prevention of the loosening of the knitting yarn in a thread releasing part was not completed yet.

Herein, the jaw made in S3 is a jaw performed after the step γ in the thread releasing step, but is not an essential step, but the chin can further prevent the knitting of the thread releasing part from loosening. The stitch to be the target of the jaw may be the right side of the ground than the position illustrated in S3, and is not particularly limited.

After the next S4, new stripes following the stripes knitted by the yarn feeding yarn 8 are knitted using the new yarn feeding sphere 9. First, in S4, the new yarn feeder 9 is moved to the right side of the paper surface, the jaw is attached to the end stitch of the second stitch row 20 of the thread releasing unit, and then the yarn feeder 9 is placed on the ground. Move to the left. The jaw of S4 is a jaw that is placed before the step α in threading and is not an essential step, but the effect of strengthening the loosening prevention of the knitting of the threading portion can be obtained. Therefore, it is preferable to perform S4. In addition, although the stitch used as a target of a jaw is not specifically limited, It is preferable to avoid the stitch which made the jaw of thread extraction in S3. This is because if the chin is applied to the same stitch in S3 and S4, it is a triple stitch.

In S5, the yarn feeding port 9 is moved in the right direction of the ground to knit the third stitch row 30 which continues in the wale direction of the second stitch row 20 knitted in thread pulling (in thread pulling). Step δ). As a result, a cross yarn formed between the first stitch 1 and the second stitch 2 and between the second stitch 2 and the third stitch 3, and the fourth stitch 4 and the fifth stitch. The positional relationship of the cross yarns formed between (5) and between the fifth stitch 5 and the sixth stitch 6 can be determined to prevent the knitting of the thread releasing portion from being loosened.

Here, the third stitch row 30 knitted in S5 is the first stitch row 10 in threading (step α in threading), and the first stitch row 10 is in turn from the start side. The first stitch 1, the second stitch 2, and the third stitch 3 are arranged side by side in the knitting direction of the first stitch row 10. The second stitch 2 is knitted on the BB, and the first stitch 1 and the third stitch 3 are knitted on the FB.

In S6, after the BB is racked one pitch in the left direction of the ground, the yarn feeding port 9 is moved in the left direction of the ground, and the second stitch row 20 which continues in the wale direction of the first stitch row 10 is knitted. (Process β in threading). The fourth stitch 4, the fifth stitch 5, and the sixth stitch 6 provided in the second stitch row 20 are respectively the first stitch 1, the second stitch 2, and the third stitch ( It is formed continuously in the wale direction of 3).

In S7, BB is racked one pitch in the right direction of the paper so that the left and right positional relationship between the first stitch 1 and the second stitch 2 is the same as the end of S5 (process γ in threading). . In this way, the first stitch 1, the second stitch 2, and the third stitch 3 of the first stitch row 10 and the fourth stitch of the second stitch row 20 continuous in the wale direction ( In the vicinity of the place where 4), 5th stitch 5 and 6th stitch 6 are formed, the cross yarn which connects these stitches 1-6 becomes a state which complicatedly crossed.

In addition, in S7, the yarn feeding port 9 is moved to the right direction of the paper surface, and the third stitch string 30 continuous in the wale direction of the second stitch string 20 knitted in S6 is knitted (into the thread). Process δ). As a result, the knitting of the thread inserting portion can be prevented from being loosened, similarly to the thread extracting portion.

≪ Embodiment 2 >

In Embodiment 1, the 2nd stitch 2 was knitted to BB among the stitches 1-3 which knitted in order to prevent loosening of knitting yarn (refer to S1, S5 of FIG. 1). On the other hand, in S1 and S5 of Fig. 1, the first stitch 1 may be knitted on the BB, and the second stitch 2 and the third stitch 3 on the FB (in this case, the first stitch 1 ) Becomes a jam loop). In that case, in S2 and S6, BB is racked 1 pitch to the right direction of the paper surface, and the position of the knitting width direction of the 1st stitch 1 and the 2nd stitch 2 is replaced. In addition, in S5 and S7, the positional relationship between the left and right of the first stitch 1 and the second stitch 2 is returned to be the same as that of S1 and S5 in the state where BB is latched one pitch in the leftward direction of the paper. In the knitting process as described above, the knitting of the yarns in the thread inserting part and the thread releasing part can be prevented.

In addition, this invention is not limited to said embodiment, It can change suitably and implement in the range which does not deviate from the summary of this invention. In embodiment, although threading and thread extraction are performed in the knitting width direction edge part of a knitted fabric, you may threading and thread removal in parts other than the said edge part. For example, in a knitted fabric having an intersha pattern, the knitting yarn is often replaced at an intermediate portion (a portion other than the end portion) in the knitting width direction of the knitted fabric. In this case, the yarn shown in Fig. 1 is inserted in the intermediate portion.・ It is good to pull out a thread.

1: First stitch
2: second stitch
3: third stitch
4: fourth stitch
5: stitch 5
6: stitch 6
10: first stitch row
20: second stitch row
30: third stitch row

Claims (2)

At least one pair of front and rear needle beds is provided, and the knitting yarn is switched during the knitting of the knitted fabric by using a flat knitting machine in which any of the needle beds can be racked from side to side. When knitting a knitted fabric having at least one of a yarn-in part and a yarn-out part, preventing loosening of the knitting yarn in the thread-entering part or the thread-unloading part is prevented. In the knitting prevention method of knitting,
A process of forming the first stitch string including the first stitch, the second stitch, and the third stitch in the knitting width direction by satisfying the following requirements [A] or [B]; ,
[A] Among the first stitch, the second stitch, and the third stitch, the first stitch and the third stitch are disposed on one needle bed and the second stitch on the other needle bed.
[B] Among the first stitch, the second stitch, and the third stitch, the second stitch and the third stitch are disposed on one needle bed and the first stitch on the other needle bed.
After locking the needle bed to replace the positions in the knitting width directions of the first stitch and the second stitch, the fourth stitch, the fifth stitch, and the fifth stitch continuing in the respective wale directions of the first stitch, the second stitch, and the third stitch. A process β for forming a second stitch string including 6 stitches,
A process γ for racking the needle bed in a direction opposite to the process β to return the positional relationship between the left and right sides of the first stitch and the second stitch to the same state as the step α,
The third stitch string which is continued in the wale direction of the second stitch string is knitted, between the first stitch and the second stitch, between the second stitch and the third stitch, and between the fourth stitch and the fifth stitch. A step of preventing loosening of the knitting yarn in the thread inserting part or the thread releasing part by determining the positional relationship between the cross-over yarns formed between and between the fifth stitch and the sixth stitch. To
Loosening prevention method of knitting characterized in that it comprises.
The method of claim 1,
The thread insertion part in front of the process (α), and in the thread releasing portion is a knitting prevention method of knitting yarns, characterized in that the tuck on the stitch coupled to the needle bed after the step (γ).

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