JPS6059336B2 - Method and device for knitting two-sided double-sided pile fabric - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and apparatus for knitting a two-sided double-sided pile knitted fabric.

Conventionally, several proposals have already been made regarding the production of double-sided pile knitted fabrics that have loop piles on one side and cut piles on the other side among knitted fabrics that have piles on both sides.

For example, in Japanese Utility Model Publication No. 52-53825, a cut pile provided by knitting or knitting is formed on one side, and then a loop pile is formed on the other side by means of tufting.In this manufacturing method, once -・・・
After forming cut piles on the surface, a needle is inserted between the cut piles and the supplied yarn is pulled out to form a loop pile. Therefore, in this manufacturing process, a single-sided pile fabric is once knitted and then a tufting process is performed to create a double-sided pile fabric, which requires a considerable amount of time for tufting.

Another manufacturing method is to use a warp knitting machine that has a pin needle on one side and a pin needle that holds a knife on the other side for a single row of needles, but since it is a three-sided knitting method, it is very difficult to produce. It was of low quality.

The ultimate purpose of the present invention is to solve the above-mentioned drawbacks and to produce a double-sided pile knitted fabric having a constant and uniform pile length, and exhibiting a cut-pile-like pile condition on one side and a loop-pile-like pile condition on the other side. Therefore, the present inventor took advantage of the fact that a single-sided cut pile knitted fabric can be obtained by center-cutting a two-sided pile knitted fabric using a well-known double needle row warp knitting machine, and utilized the kinematic characteristics of compound needles. The device obtained by this method and the method of knitting a two-sided double-sided pile fabric using this device were completed as a result of research and development.

Next, the present invention will be explained in detail with reference to the drawings. FIG. 1 shows an apparatus for knitting, in which numeral 1 denotes a front needle, which is composed of a compound needle;
The needle 1 is composed of a needle stem 4 and a tong 3, and 2 is a needle on the back side, which is also a compound needle, and the needle 2 is also composed of a needle stem 4 and a tong 3, and the tong 3 is connected to a tong bar 5. The drive rod 6 is further connected to the 6
, the needle stem 4 is attached to the needle par 7, 8 is a front side trick plate, 9 is a back side trick plate, the needle stem 4 and the tongue 3 swing in synchronization with the trick plate, and It is configured to alternately move up and down.

Furthermore, 10 is a stitch comb, which has a pair on the front and back sides, each attached to a stitch comb bar 11.

Also, L1 is a reed for knitting pile fabric, L2 and L3 are reeds for forming the base fabric on the front side, L7 is a reed for forming the base fabric on the pile knitting, and L6 and L5 are for forming the base fabric on the back side. , and L is a ground reed for knitting piles that connect both base fabrics, and the ground reed group Ll,! , L3 act on the front needle row, and the ground reed group L2,! , L7 act on the back needle row, and L
is configured to act on both needle rows.

Next, the specific knitting method of the present invention will be explained with reference to Figs. 2 to 4. Fig. 2 is a knitting organization chart that acts only on the front side needle 1, and 12 is a knitting organization chart for the knitting system that acts only on the front needle 1.
The warp threads are threaded into 2, and every other needle on the front side is chain-stitched with open stitches in every course.
3 is a warp thread threaded through the ground reed L3, which is inserted into the three rows of chain stitches, and 14 is a pile thread threaded through the ground reed thread L3. On the other hand, after performing overlapping, the pile yarn 14 is reciprocated between the three needles on the right side while the needle 1 on the front side is descending, and after performing loose wrapping, the pile yarn 14 is moved back and forth between the two needles on the left side. After wrapping, return to the original needle 1″ and overlap.
While the needle 1 on the front side is descending again, the pile yarn 14 is reciprocated between the three needles on the left side to perform loose wrapping, then underwrapped between two needles on the right side, and then returned to the initial position. , repeat the original knitting process.

Since the pile yarn 14 is overlapped intermittently, a stitch row is not formed, and due to the movement characteristics of the compound needle, when the needle stem 4 rises, the tongs 3
Since the needle stem 4 is configured to descend, the hook of the needle stem 4 is guaranteed to remain open regardless of the action or inaction of the knitting yarn.

After wrapping around the needle 1, the pile yarn 14 descends, and after further rising, the pile yarn 14 wraps around the needle 1.
'', and the left and right inserted parts move to the center and bulge out as a pile on the back side of the base fabric.

Furthermore, since the pile yarn 14 is wrapped with play, this excess yarn is fed and helps the pile bulge, and the pile length can be adjusted by the amount of wrapping.

Figure 3 is a knitting organization diagram that acts only on the needles 2 on the back side, and 15 is the warp thread threaded through the ground reed L5, and the chain stitch is made with an opening for every other needle 2 on the back side. 16 is a warp threaded through the ground reed L6, which is inserted into the three rows of chain stitches, and 17
is the pile yarn threaded through the ground reed L7. First, it overlaps the needle 2" that is not used for chain stitching, and then, while the needle 2 on the back side is descending, it is passed between the 3 needles on the right side. After reciprocating the pile yarn 17 and performing loose wrapping, underwrapping on the left side between 22 and 7 dollars, then return to the original needle 1'' and after overlapping, again on the back side. While the needle 2 is descending, the pile yarn 17 is moved back and forth between the three needles on the left side to perform loose wrapping, and then the pile thread 17 is moved back and forth between the three needles on the left side, and then
After underwrapping between the needles, return to the initial position and repeat this knitting process.

This pile yarn 17 bulges out as a pile on the outside of the base fabric on the back side using the same knitting principle as the pile yarn 14 on the front side.

Further, the pile yarn 17 also has the same base fabric effect as the pile yarn 14.

Next, the pile yarn 18 threaded through the ground reed L4 is passed through the front needle 1 and the back needle 2 as shown in FIG.
First, the needle 1 on the front side is overlapped, then the needle 2 on the back side is overlapped, and then the original needle 1 is overlapped. It is organized by repeating.

The warp threads and pile threads threaded through each of the above reeds are threaded through half of the needle gauges.

Note that the knitting structures of the warps 12 and 15 are also added for reference. FIG. 5 schematically shows a cross section of the two-sided double-sided pile knitted fabric obtained by the above knitting. The front side base fabric 19 is formed by chain knitting made of warp yarns 12 and insertion knitting made of warp yarns 13. In addition, the base fabric 20 on the back side is formed by chain stitching consisting of the warp yarns 15 and insertion knitting consisting of the warp yarns 16, and furthermore, the pile yarn 1 is formed on the front side and the back side.
4, 17 creates a loop pile P1 between the chain stitches and outwardly.
are formed, and furthermore, a front side base fabric 19 and a back side base fabric 20 are alternately connected by pile threads 18.

The two-sided double-sided pile knitted fabric thus knitted is divided into two by a pile cutting device (not shown) equipped with a knife K, as shown in FIG. As a result, a cut pile P2 is formed. Fig. 7 shows an enlarged organization diagram of a double-sided pile knitted fabric after center cutting for reference. On one side, there is a loop pile P1 formed by knitting. In addition to being bulged, a center cut P2 formed by a center cut is provided on the other surface.

As described above, the present invention is directed to a double needle row warp knitting machine in which compound needles, each consisting of a needle stem and a tong for opening and closing a hook of the needle stem, are installed facing each other in the front needle row and back needle row. Therefore, the base fabric, which becomes a double-sided pile knitted fabric, is knitted in parallel using needle rows on the front and back sides, and the pile becomes a cut pile. Since it is knitted by connecting both base fabrics with yarn, it is possible to produce the base fabric to become a double-sided pile knitted fabric much more efficiently than with conventional manufacturing methods, and the loop pile is knitted with a knitted structure. The shape and length of the formed pile is regulated, and the pile is constant and uniform. It has an excellent effect of being able to provide a double-sided pile knitted fabric.

[Brief explanation of drawings]

Fig. 1 is a schematic side view of the knitting main part of a double needle row warp knitting machine for knitting a two-sided double-sided pile fabric, and Fig. 2 is a schematic side view of the knitting part of a double-needle row warp knitting machine for knitting a two-sided double-sided pile fabric. FIG. 3 is an example knitting organization chart of a ground reed that acts only on the side needles, and FIG. Figure 4 shows an example knitting organization diagram of the ground reed that acts on both the front and back needles in knitting a two-sided double-sided pile knitted fabric, and Figure 5 is a schematic diagram showing a cross section of the two-sided double-sided pile knitted fabric. FIG. 6 is a side view showing the center-cut state of the two-sided double-sided pile knitted fabric, and FIG. 7 is an enlarged organization diagram of the double-sided pile knitted fabric after center-cutting.

Claims (1)

[Claims] 1. The warp threads passed through the fabric reeds L_2 and L_3 on the front needle side of the double-needle row warp knitting machine are applied to every other front needle to form the base fabric on the front side, and The warp yarns threaded through the ground reeds L_5 and L_6 on the needle side are applied to every other back needle side to form the base fabric on the back side, and the ground reeds L_1 and L_7 are
The threaded pile threads are overlapped with needles that are not involved in forming the front and back base fabrics, and the pile threads are fixed to the base fabrics to form a loop pile, and then threaded through the ground reed L_4. A method of knitting a two-sided double-sided pile knitted fabric, in which the pile yarn is applied to both needles, and the front side base fabric and the back side base fabric are connected and knitted. 2 During the descent of each working needle of the pile yarn threaded through the ground reed L_1 and the ground reed L_7, the ground reed L_1 and the ground reed L_7
A method for knitting a two-sided double-sided pile knitted fabric according to claim 1, wherein loose wrapping is performed between a plurality of needles. 3 Compound needles consisting of needle stems and tongs for opening and closing the hooks of the needle stems are installed facing each other in the front needle row and back needle row of a double needle row warp knitting machine, and are oscillated in synchronization with a trick plate. knitting of a two-sided double-sided pile knitted fabric configured to alternately move up and down, so that the open state of the hook is always guaranteed regardless of the action or inaction of the knitting yarn when the needle stem rises. Device.