JPH0718787Y2 - A device for correcting the yarn feeding angle to the guide needle in the double needle row warp knitting machine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a yarn feed angle correcting device for a guide needle in a double needle row warp knitting machine.

[Conventional technology]

Conventionally, in knitting a two-sided double-sided warp knitted fabric on a double needle row warp knitting machine, particularly in the case of a blanket knitting machine, as shown in FIG. However, the ground reeds arranged on the front side and the rear side and for supplying the base cloth connecting yarns to be piles are arranged between the base cloth forming ground reeds. The connecting yarn 1 supplied to the above-mentioned base cloth connecting reed is passed from the bending contact 3 of the tension device 2 through the threading hole 5 of the guide needle 4 to the front needle 6 and the rear needle 7 alternately. Have been fed to.

[Problems to be solved by the invention]

In the above yarn feeding process, the distance from the upper bent contact point 3 through the yarn threading hole 5 to the working position of the needles 6 and 7 on the hooks 8 and 9 fluctuates due to an arc difference during knitting. The yarn feed amount of No. 1 was different between the front and rear base fabrics, and this subtly affected the construction of the pile. As a result, it was difficult to finally obtain the same quality before and after.

As a solution to this, as shown in FIG. 4, the connecting yarn 1 is placed on the vertical line between the front needle 6 and the rear needle 7, and the connecting yarn 1 is made so that the swing amplitudes on the left and right are the same. Although an attempt was made to feed the yarn, the angle of entry α into the yarn passing hole 5 becomes an acute angle at all knitting positions, and there is no yarn angle position that can be restored even when the twist is restored in the conventional configuration, Due to the form of the connecting yarn 1 (twisted yarn of spun yarn) used, the side wall of the threading hole 5 is constantly contacted and rubbed so that the yarn twists as shown in FIG. In the movement in the direction, the twist is returned, and in fact it becomes a single yarn draw-aligned shape 1a, which cannot be returned to the original state of the twist, which causes thread breakage due to looseness in knitting, etc.
Further, when the connecting yarn 1 was center cut and formed as a napped pile, it was difficult to obtain a uniform pile texture.

The present invention solves the above-mentioned drawbacks, and the twist is difficult to return even during knitting in which the connecting yarn is fed from the center of the knitting portion, and even when the twist is temporarily returned, the original twisted state is easily returned. An object of the present invention is to provide a yarn feeding angle correcting device for a connecting yarn having such a structure.

[Means for solving problems]

A double needle row warp knitting machine according to the present invention is provided with a device for correcting a yarn feed angle to a guide needle, in a warp knitting machine having a double needle row, for connecting base fabrics provided between ground reeds for knitting front and rear base fabrics. The feeding angle of the connecting thread into the threading hole is increased in the vicinity of the threading hole on the connecting thread feeding side of the guide needle provided in the yarn feeding ground reed, and the base cloth connecting thread feeding is performed. A ridge body is provided in the longitudinal direction to prevent untwisting of the connecting yarn due to rocking of the yarn reed.

[Action]

Since the angle of incidence α of the connecting yarn into the threading hole is increased by the ridges, the connecting yarn was always bent during knitting by the threading hole when the guide needle swung in the front-rear direction. Since the part is changed to a straight part, it becomes difficult to untwist the twist, and even if it is released, the twist is returned to near the original twisted state.

〔Example〕

Next, the correction device of the present invention will be described with reference to the drawings of the embodiments.

FIG. 1 is a schematic side view of a knitting main part of a double needle row warp knitting machine showing an embodiment of the yarn feeding angle correcting device of the present invention,
The ground reed for forming the base cloth is omitted. Reference numeral 10 denotes a ridge body, which is close to the guide needle 4 and is screwed to one side surface of the guide bar 11, and the ridge body 10 is a tip portion of a belt body 12 continuous in the longitudinal direction of the guide bar 11. A contact member 13 which is bent in a U-shape in the longitudinal direction along the surface and which has been subjected to surface treatment for giving slipperiness and abrasion resistance is adhered and fixed.

When knitting is performed using the straightening device configured as described above,
As shown in FIG. 2, when the supplied connecting thread 1 acts on the rear needle 6 through the threading hole 5, the line segment connecting the hook 8 and the contact point 14 of the connecting thread 1 of the contact member 13 is , The side wall of the threading hole 5 comes into contact with the side wall, making
The twist of the connecting yarn 1 is less likely to be returned, and even if it is returned, the original state can be easily restored.

The ridge body is not limited to the above-described embodiment, and the connecting thread is not to be bent directly from the hook of the needle through the threading hole so as to increase the entry angle α. ,
It may be a tubular body having a circular or elliptical cross section, or, of course, a bent plate having a protruding portion may be attached.

[Effect of device]

As described above, the yarn feeding angle correcting device of the present invention does not twist the connecting yarn when the connecting yarn is fed toward the middle portion of the front and rear needles through the threading hole of the guide needle. Since it is not knitted in the returned state, it is possible to knit a two-sided warp knitted fabric of constant quality.

[Brief description of drawings]

FIG. 1 is a schematic side view of a knitting main part of a double needle row warp knitting machine showing an embodiment of the yarn feeding angle correcting device of the present invention, and FIG. 2 is a guide showing a knitting state of connecting yarns. FIG. 3 is an enlarged perspective view of a needle portion, FIG. 3 is a schematic side view of a knitting portion showing a yarn feeding state of a conventional connecting yarn in a double needle row warp knitting machine, and FIG. FIG. 5 is a schematic side view of a knitting portion when the yarn is fed in the middle of the front and rear needles, and FIG. 5 is an enlarged perspective view of the guide needle portion showing the knitting state of the connecting yarn in FIG. 4.

Claims (1)

[Scope of utility model registration request] 1. In a warp knitting machine having a double needle row, a yarn feed yarn for connecting a guide needle provided in a yarn feed yarn for connecting a base fabric provided between ground reeds for knitting front and rear base fabrics. In the vicinity of the threading hole on the side, the angle of incidence α of the connecting thread into the threading hole is increased, and the untwisting of the connecting thread due to the swing of the base cloth connecting thread feeding reed is performed. A yarn feeding angle correcting device for a guide needle in a double needle row warp knitting machine, characterized in that a ridge body for preventing the ridge is attached in a longitudinal direction.