JPS5936030B2 - Pile forming method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pile forming force method, and more particularly to a pile forming force method capable of obtaining a tufted carpet without pile disorder.

It is well known to use tufting machines to form cut piles and loop piles as desired.

In recent years, carpets with high pile density have been awarded prizes.
For this reason, tufting machines equipped with so-called Sfutzger type needle rows, in which two rows of needles are alternately formed, have come into widespread use.

A conventional tufting method for forming piles using this stacker is shown in FIG.

1 is a base fabric, 2°2' is a needle of a needle row, 3 and 3' are spike rollers, 4°5 is a base fabric presser, and 6 is a lead dent, which moves the base fabric in the direction of arrow A.

The base fabric is stretched between spike rollers 3, 3' and supported by base fabric retainers 4, 5 and lead dents 6.

However, in the conventional method, when the needle rows 2 and 2' are passed through the base fabric vertically as shown by dotted lines, the base fabric 1 rises up as shown by the broken line, causing the needle rows 2 and 2' to move up and down. As a result, it violently vibrated vertically, and various stresses applied to the base fabric at this time distorted the base fabric, resulting in pile disorder.

Such pile disorder, especially in the case of loop pile, impairs the appearance when the pile fabric is processed into a final carpet product, resulting in a significant deterioration in quality.

For this reason, measures have been taken to prevent downward vibration of the base fabric, and a method has been used in which a pile is formed using a base fabric retainer, which is shown partially cut away in FIG.

The base cloth presser 4 is provided with holes 7 corresponding to the needle rows.
This hole 7 is set in accordance with the vertical position of the needle row.

In this way, a method has been used to form a uniform pile by suppressing the vertical movement of the base fabric during tufting.

However, this method requires a skilled person to set extremely delicate positions to hold the base fabric, which is generally a very difficult task.Also, the needle rows usually experience considerable resistance when penetrating the base fabric, causing the needles to bend and become tough at high speeds. When tufting occurs, the needle is bent and tufted, which may cause the needle to deviate from the center of the hole in the base fabric retainer and come into contact with the base fabric retainer, damaging the needle or pile thread, or in severe cases, causing part of the needle to tuft. The needle of the carpet came off the hole and broke, and as a result, production had to be discontinued, making it impossible to produce tufted carpet reliably.

The present invention solves the above-mentioned problems by using a novel base fabric retainer.When tufting is performed by vertically penetrating the moving base fabric with needle rows, the upstream side of the base fabric with respect to the needle row is A base cloth retainer having a metal thin piece on the side is provided, and the metal thin piece protrudes toward the opposing needle row, and the lead dent is provided at a position under the base fabric where the metal thin piece and the comb-shaped portion at the tip of the lead dent overlap. The main point is the pile forming force method, which is characterized by its characteristics.

The present invention works particularly effectively when the needle row is a sufutsuga.

The present invention will be explained below. FIG. 3 is a diagram showing the implementation of the present invention;
1 is a base fabric, 2, 2' are needle rows, 3, 3' are spike rollers, and the base fabric 1 is stretched between the spike rollers 3, 3'.

The base fabric 1 can be a jute woven fabric, a woven fabric made of polypropylene, polyester, vinylon, etc., or a nonwoven fabric, but the strength of a nonwoven fabric is preferable.

The base fabric is moving in the direction of arrow A.

The base cloth 1 is provided with a base cloth retainer 8 on the upstream side and a base cloth retainer 5 on the downstream side with respect to the needle row 2, and a metal piece 9 is formed at the tip of the base cloth retainer 8 on the downstream side. The lamina 9 projects with respect to the needle row 2.

On the other hand, place the lead dents 6 under the base fabric at a position that overlaps with the base fabric retainer 8.
is fixed, and a comb-shaped part 10 is attached to the tip of the reed dent 6.
is formed.

Lead Dents 6 has a structure in which a comb-teeth-shaped part 10 is provided at the tip of an iron plate, and the needle rows 2 and 2' penetrate between the comb-teeth-shaped parts, and the comb-teeth-shaped part It has enough length to reach the tip of the needle row 2.

The needle row 2 penetrates the base fabric 1 and passes between the metal thin piece 9 and the comb-shaped portion 10 of the reed dent, and a loop pile 12 is formed by the looper 11.

The obtained pile fabric is guided to be wound up by a rubber roll 13 via a spike roller 3'.

In the above configuration, the base fabric presser 8 and the lead dents 6 exhibit a cooperative effect, suppressing the vertical vibration of the base fabric even during tufting, and obtaining a high-quality cut pile fabric without pile disorder.

FIG. 4 is an enlarged partially cutaway view of the positional relationship between the needle row and the base fabric presser of the present invention, where the thin metal piece 9 at the tip of the base fabric presser 8 is placed upstream of the base fabric 1 flowing in the direction of the arrow. It is located in the middle of the interval.

Further, the thin metal piece 9 protrudes by more than half of its total length with respect to the line 1-1 through which the needle row 2 penetrates the base fabric, and similarly, the base fabric presser 8 and the lead dents 6 overlap, and more specifically, the thin metal piece 9
are vertically overlapped with the comb-toothed portion 10, and each row of needles passes between the thin metal piece 9 and the comb-toothed portion 10 and engages with the looper.

The thin metal piece is a long thin plate-shaped piece that protrudes from the tip of the base fabric holder. The structure is such that the pile yarns do not touch each other.

In this way, the thin metal pieces 9 and the comb-toothed portions 10 make it possible to prevent vertical vibrations of the base fabric, especially during cutting.

Next, FIGS. 5 and 6 show the positional relationship between the needle row and the base fabric presser when a stagger is used.

5 is a side view, and FIG. 6 is a plan view. In FIG.
and lead dents 6 are provided in an overlapping manner, each having a thin metal piece 9 and a comb-toothed portion 10 formed at its tip.

The base fabric retainer 8 is located on the upstream side of the base fabric 1, and the needle row 2 facing the base fabric retainer passes through the center of the metal thin piece 9 and the comb-shaped portion 10 and penetrates the base fabric.

In addition, as shown in FIG. 6, the base fabric presser 8 has a metal thin piece 9 located at the center of the interval between the needle rows 2 only with respect to the needle row 2 facing the metal thin piece 9, and at the center of the length of the metal thin piece 9. The needle is set to the correct position.

In FIGS. 5 and 6, the needle row 2' is the needle row located on the downstream side with respect to the movement of the base fabric in the sufutuger.

It is desirable that the base fabric retainer 8 be set so that the tip of the metal thin piece 9 is located approximately midway between the needle rows 2 and 2', and the base fabric retainer 8 should be set so that the tip of the thin metal piece 9 is located approximately midway between the needle rows 2 and 2'. Hold down 6
It does not have metal flakes or other auxiliary means.

As described above, even in the case of using a stagger where the pile was disordered with the conventional base fabric restrainer, an orderly pile was obtained due to the cooperative effect of the novel base fabric restrainer and lead dents of the present invention.

As mentioned above, the base fabric is supported between the metal thin piece holding the base fabric and the comb-like part of the lead dent, and the metal thin piece protrudes from the needle row, and the needle passes through the center of the metal thin piece, so the needle penetrates the base fabric. The vertical vibration of the fabric can be reliably suppressed, and the base fabric does not vibrate in the slightest during tufting, especially when using a sufutsuga, and neither the needles nor the pile yarn are damaged during this process, and the resulting pile fabric is A high-quality tufted carpet with no pile disturbance was obtained with high efficiency by backing using the usual method.

Although the present invention is most suitable for forming loop piles using the above-mentioned tufting machine, it is also suitable for forming loop piles and cut piles using other tufting machines.

[Brief explanation of the drawing]

Figure 1 is a diagram of pile formation using a conventional stagger, Figure 2 is a partially cutaway diagram of a conventional base fabric restrainer, Figure 3 is a diagram of the present invention in practice, and Figure 4 is an enlarged partial cutout of Figure 3. Figure, Figure 5,
FIG. 6 is a side view of the positional relationship between the needle and the base fabric holder. 2. 2' is the needle row, 6 is the lead dent, 8 is the base fabric presser, 9
1 is a thin metal piece, and 10 is a comb-shaped portion.

Claims (1)

[Scope of Claims] 1. When performing tufting by penetrating the moving base fabric below −L with a needle row, a base fabric retainer having a metal thin piece is provided on the upstream side of the base fabric with respect to the needle row, The lead dent is characterized in that the metal thin piece is located between opposing needle rows and protrudes with respect to the needle row, and the lead dent is provided at a position under the base fabric where the metal thin piece and the comb-shaped portion at the tip of the lead dent overlap. Pile forming method. The pile forming force method according to claim 1, wherein 22 rows of needles are formed alternately.