JP2001199634A - Warp winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a warp winding device capable of easily operating a reed from a front part of a tension detecting roller, and capable of reducing the number of rollers. SOLUTION: In this warp winding device where a group of yarns 1 having passed through a reed 2 is fed while held between a nip roller 3 and a feeding roller 4, and then taken up by a winding beam 7 through a tension detecting roller 5 separated at an upstream side of the feeding roller 4, a moving means 6 is mounted for relatively approaching the tension detecting roller 5 to the feeding roller 4 separated at a downstream side, and the group of yarns 1 is held between the approaching feeding roller 4 and tension detecting roller 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a warp winding device. More specifically, for example, the present invention relates to a warp winding device capable of winding a yarn group supplied from a warp sizing and drying device at a constant speed and tension.

[0002]

2. Description of the Related Art In a conventional warp winding device, a reed, a nip roller, a feed roller, a nip roller, a tension detecting roller, and a winding beam are sequentially arranged downstream of a yarn group supplied from a warp glue drying device. . Here, the side of the warp sizing and drying device is defined as the rear side, and the side of the winding beam is defined as the front side. When the yarn breaks or the take-up beam is exchanged, the yarn group is securely held between the feed roller and the nip roller on the downstream side, so that the yarn group does not come off from the roller to ensure smooth operation of the winding operation. I was

However, in the conventional apparatus, since a tension detecting roller is disposed in front of the nip roller on the downstream side, the tension detecting roller is far away from the reed and the front of the tension detecting roller when the yarn breaks. The operation of operating the reed by extending the arm from the front was troublesome. It is also desired to reduce the number of rollers used in the apparatus and reduce the manufacturing cost of the apparatus.

[0004]

SUMMARY OF THE INVENTION The present invention has been developed in consideration of such circumstances, and an object of the present invention is to make it possible to easily operate a reed from the front of a tension detecting roller. An object of the present invention is to provide a warp winding device capable of reducing the number of warp winding devices.

[0005]

According to a first aspect of the present invention, a yarn group that has passed through a reed is sandwiched between a nip roller and a feed roller and sent out, and then wound via a tension detecting roller separated downstream from the feed roller. A warp take-up device for winding with a take-up beam, comprising moving means for relatively bringing a tension detecting roller closer to a feed roller that is distant upstream, between a feed roller and a tension detecting roller that have approached. It is characterized in that a yarn group is sandwiched between the two.

[0006] The term "relatively" includes the concept that the feed roller advances and approaches the tension detecting roller, and the case that the tension detecting roller moves backward and approaches the feed roller. is there. Further, "moving means" refers to all means capable of relatively approaching and separating the tension detecting roller with respect to the feed roller, and specific examples of the movement include linear reciprocating motion and oscillating motion. Can be

According to a second aspect of the present invention, the moving means includes a lever that swings back and forth with the upper portion serving as a fulcrum, and connects a plate supporting a tension detecting roller to an intermediate portion of the lever and a lower portion of the feed roller. A lower portion of the lever is connected to a piston rod that reciprocates back and forth.

According to the present invention, in which the cylinder is located below the feed roller, the front-rear length of the entire apparatus can be made smaller than a structure in which the cylinder is located in front of the tension detecting roller.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a warp take-up device of the present invention is provided with a reed 2 and a nip roller 3 spaced downstream of a group of yarns 1 in which a number of yarns are arranged in parallel. The feed roller 4 is provided below the nip roller 3 and a tension detecting roller 5 is provided in front of the feed roller 4, and the tension detecting roller 5 is held so as to be accessible to and separable from the feed roller 4. A tension detecting roller 5 having moving means 6
Is provided with a take-up beam 7 below. During normal operation, the yarn group 1 is wound up with the tension detection roller 5 separated from the feed roller 4, while when the take-up beam 7 is replaced, the tension detection roller 5 is brought close to the feed roller 4 to detect the tension. The yarn group 1 is sandwiched between the roller 5 and the feed roller 4.

The moving means 6 is, as shown in FIGS.
A lever 10 is swingably provided back and forth by a cylinder 8 and a piston rod 9, one end of a tension detecting roller 5 is rotatably supported on a plate 11 connected to the lever 10, and a tension detector is provided on the plate 11 and the lever 10. (Load cell) 12 is constructed. Then, the tension detecting roller 5 and the tension detector 12 are simultaneously moved forward and backward by the forward and backward movement of the lever 10, and as a result, the tension detecting roller 5 approaches and is separated from the feed roller 4.

The above structure will be described in more detail separately for a mechanism for swinging the lever 10 and a mechanism for detecting tension. The rocking mechanism of the lever 10 connects the upper part of the lever 10 to the frame 14 with the pin 13 in front of the support point of the nip roller 3, and lowers and slightly behind the support point of the feed roller 4 to move the cylinder 8. The mounting piece 15 protruding to the rear side is
, The cylinder 8 is disposed below the feed roller 4, and the piston rod 9 reciprocates back and forth.
A fork 17 is provided at the tip of the
The first stopper 19, which is connected to the lower part of the lever 10 by a pin 18 and regulates the forward swing of the lever 10, is connected to the frame 1
4 is fixed. By connecting the mounting piece 15 and the bifurcated piece 17 with the pins 16 and 18, the cylinder 8 is held swingably around the pin 16 as a fulcrum.
The reciprocating angle of the piston rod 9 is slightly changed according to the swing angle of the lever 10.

The mechanism for detecting the tension effectively utilizes a part of the lever 10, that is, an auxiliary piece 20 continuously protruding forward from an intermediate portion of the lever 10.
The plate 11 is pivotally connected to the plate 11 below the pin 13 and above the auxiliary piece 20 so as to swing back and forth with the pin 21. The tension detecting roller 5 is rotatable below the pin 21 to the plate 11. The tension detector 12 is installed between the rear part of the plate 11 and the rear part of the auxiliary piece 20 with bolts and nuts, and the second stopper 22 abutting on the plate 11 is
0, and the second stopper 22 regulates the forward swing of the plate 11 to prevent the tension detector 12 from rotating.
Is designed not to apply a compressing force, so that accurate tension measurement can be performed. Reference numeral 23 denotes a slit for inserting one end of the tension detector 12, and reference numeral 24 denotes a bearing.

According to the present invention, since the yarn layer diameter gradually increases as the yarn group 1 is wound by the winding beam 7, the tension detector 1 is used to wind the yarn while maintaining the optimum tension for the yarn to be used.
The variable speed motor connected to the winding beam 7 is adjusted automatically based on the measurement value obtained in step 2. In other words, assuming that the winding is currently performed with the optimum tension, as the diameter of the winding beam 7 increases, the yarn tension between the feed roller 4 and the winding beam 7 increases. The variable speed motor thus decelerated is decelerated so that the tension becomes optimal. Winding is performed by repeating this correction. The yarn speed is controlled by keeping the feed roller 4 at a constant rotation.

The present invention is not limited to the above embodiment. For example, the moving means 6 is provided on both the left and right sides of the tension detecting roller 5, but it is not always necessary to have the same structure on the left and right, and the cylinder 8 and the piston rod 9 may be provided on at least one of them. Further, the tension detector 12 must be provided on at least one of the moving means 6, but the tension detector 12 is not necessarily provided on the other, so that the second stopper 22 is not required. further,
The present invention is not limited to a structure in which the lever 10 swings back and forth with the pin 13 as a fulcrum.
Instead of using 3, the guide rails may be provided above and below the lever 10, and the lever 10 may be linearly reciprocated back and forth along the guide rail.

[0015]

According to the first aspect of the present invention, since the tension detecting roller is separated from the feed roller during normal operation, an accurate tension detection value is ensured. The yarn group can be held between them, and the nip roller downstream of the feed roller, which was required in the past, is no longer necessary, so the tension detection roller can be arranged closer to the reed than in the past, and as a result, the tension The operation of operating the reed from the front of the detection roller is facilitated. In addition, since the downstream nip roller, which has been conventionally required, becomes unnecessary, the manufacturing cost of the apparatus is reduced.

According to a second aspect of the present invention, the moving means has a simple structure in which the lever is swung by the cylinder and the piston rod. Further, since the cylinder is located below the feed roller, the longitudinal length of the apparatus itself is reduced. Become compact.

[Brief description of the drawings]

FIG. 1 is a drawing showing a schematic structure of a warp winding device of the present invention, in which a feed roller and a tension detecting roller are separated.

FIG. 2 is a drawing showing a schematic structure of the warp winding device of the present invention, showing a state in which a yarn group is sandwiched between a feed roller and a tension detecting roller.

FIG. 3 is a drawing showing a specific structure of the warp winding device of the present invention, in which a feed roller and a tension detecting roller are separated from each other.

FIG. 4 is a drawing showing a specific structure of the warp winding device of the present invention, showing a state where a yarn group is sandwiched between a feed roller and a tension detecting roller.

FIG. 5 is a sectional view taken along the line AOB of FIG. 3;

6A is a sectional view taken along the line CDEF of FIG. 4; FIG. 6B is a sectional view taken along the line CDEF of FIG. 3;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 thread group 2 reed 3 nip roller 4 feed roller 5 tension detection roller 6 moving means 7 winding beam 8 cylinder 9 piston rod 10 lever 11 plate 12 tension detector

Claims (2)

[Claims] 1. A tension detecting device for holding a yarn group (1) having passed through a reed (2) between a nip roller (3) and a feed roller (4) and sending the yarn group to the downstream side of the feed roller (4). A warp take-up device that takes up a take-up beam (7) via a roller (5), wherein a tension detecting roller (5) is relatively approached to a feed roller (4) separated upstream. A warp winding device comprising a moving means (6), and sandwiching a yarn group (1) between an approaching feed roller (4) and a tension detecting roller (5). 2. The moving means (6) includes a lever (10) that swings back and forth with an upper portion serving as a fulcrum, and a plate (11) supporting a tension detecting roller (5).
And a cylinder (8) below the feed roller (4), and a lower part of the lever (10) connected to a piston rod (9) reciprocating back and forth. The warp winding device according to claim 1, wherein