JPS61295972A - Fine-wire delivery device - Google Patents

Abstract

PURPOSE:To make the tension of a delivery fine-wire controllable in an easy manner, by controlling a turning angle with an output signal of the weight measuring instrument installed in a bobbin support part, and varying an angle of an elastic wire rod to a disc tangential direction. CONSTITUTION:A wire rod W out of a bobbin 6 rotatably supported on a support block 7 is drawn out to the upper part while coming into contact with an elastic wire rod 9 projecting outward from a disc 8 at an upper part of the bobbin. This bobbin weight is measured by a load cell 10, inputted into a controller 12 via an amplifier 11, and a pulse signal corresponding to bobbin weight, namely, residual quantity is transmitted to a stepping motor 13, whereby a rotary shaft 4 on the disc 8 is rotated as far as the specified angle. When a rotary plate 15 coupled with the shaft rotates in an A or B direction, one side end is engaged with the rotary plate 15, while the elastic wire rod 9 rockably supported on a wire rod support part 16 of the disc 8 is tilted in its 9a or 9b direction so that the projection length is varied. Therefore, tension to be given to a delivery fine-wire W is easily controllable.

Description

[Detailed description of the invention] [Technical field of invention] TECHNICAL FIELD The present invention relates to a thin wire delivery device, and particularly to a thin wire drawing device.

The present invention relates to a thin wire delivery device that supplies thin wire while controlling tension in an enamel coating process.

[Technical Background of the Invention] Conventionally, a curl flyer has been used as a small wire feeding device in an enamel coating process, etc.

As shown in FIGS. 3 and 4, this curl flyer consists of a disc 3 placed on a collar plate 2a of a bobbin 2 wound with a wire 1, and a disc 3 placed on the disc 3 at equal intervals in the circumferential direction. Place a plurality of flexible elastic wires 4 made of metal or synthetic resin,
It is fixedly arranged so that a part of it protrudes outward from the disk.

In this curl fryer 5, the wire rod W is sent out along the periphery of the disk 3 while resisting the elastic force of the elastic wire rod 4, and at the same time tension is applied to the wire rod W and fraying etc. are prevented.

[Problems with the Background Art] However, in the above-mentioned curl fryer, although it is possible to apply a minute tension and force to the thin wire, the remaining amount of the wire 1 wound around the bobbin 2 is small. Even if the rotational speed of the wire W along the disk 3 increases, the tension cannot be adjusted, resulting in unstable feeding.

[Object of the Invention] The present invention was made in order to eliminate the above-mentioned drawbacks, and an object of the present invention is to provide a thin wire delivery device that can control the tension of the delivery wire.

[Summary of the Invention] The thin wire delivery device of the present invention includes a disc placed on a flange plate of a horizontally placed bobbin, a plurality of elastic wires protruding outward from the disc, and the elastic wires. a wire rod supporting section that is swingably supported and arranged concentrically on the disc, and a rotation that is rotatably supported at the center of the disc and engages the ends of the plurality of elastic wires. rotatably supporting a shaft and the bobbin;
A bobbin support part equipped with a weight measuring device for measuring the weight, and a control mechanism for controlling the rotation angle of the rotating shaft based on the output signal of the weight measuring device, are provided. The angle can be changed, thereby controlling the tension of the feeding wire.

[Embodiments of the invention] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic explanatory diagram of a thin wire delivery device 6 of the present invention,
FIG. 2 is a sectional view taken along the line xx'.

In FIGS. 1 and 2, a bobbin 6 around which wire is wound
is rotatably supported on a bobbin support stand 7, and this bobbin 6
The wire rod W fed out from the bobbin is drawn upward while coming into contact with an elastic wire rod 9 that protrudes outward from a disk 8 placed on the top of the bobbin.

The weight of the bobbin on the bobbin support stand 7 is measured by the load cell 10, and its output <8 is input to the controller 12 via the amplifier 11.The controller 12 sends a pulse signal corresponding to the bobbin weight to the stepping motor 13. Feed, rotation axis]
4 by a predetermined angle.

The elastic wire 9 has one end engaged (or may be fixed) with a rotating plate 15 coupled to a rotating shaft 14 on the disk 8, and is supported by a wire support 16 provided on the outer peripheral edge of the disk 8. The rotating shaft, i.e. the rotary plate 1
When 5 rotates in the direction A or B, the elastic wire 9 is sprayed (sprayed) in the direction 9a or 9b, respectively.

The controller 12 sends a pulse signal to the stepping motor 13 to rotate the rotary plate 15 in the direction A when the wire on the bobbin 6 is fully wound, and in the direction B as the remaining amount decreases.

With the above configuration, as the wire rod on the bobbin decreases from the fully wound state, the inclination and length of the elastic wire rod with respect to the tangential direction of the disk changes, and therefore the tension applied to the wire rod W is controlled.

[Effects of the Invention] As described above, according to the thin wire delivery device of the present invention, the inclination and protrusion length of the elastic wire change depending on the amount of winding of the wire. can be controlled.

[Brief explanation of the drawing]

Fig. 1 is a schematic explanatory diagram showing one embodiment of the thin wire delivery device of the present invention, Fig. 2 is a sectional view taken along the line xx', Fig. 3 is a sectional view of a conventional curl flyer, and Fig. 4 is a plan view thereof. Show the diagram. 6...Bobbin 7...Bobbin support stand 8...Disk 9...Elastic wire 10...Load cell 12... ... Controller 13 ... Stepping motor 14 ... Rotating shaft 15 ... Rotating plate 16 ... Wire support department agent Patent attorney Moritani - Yu 1st Ward 1 ] Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] A disk placed on the flange plate of a horizontally placed bobbin, a plurality of elastic wires protruding outward from this disk, and a plurality of elastic wires that support the elastic wires so as to be swingable, and are mounted on the disk. a wire rod supporting section arranged concentrically; a rotary shaft rotatably supported at the center of the disk and engaging the ends of the plurality of elastic wire rods; 1. A thin wire delivery device comprising: a bobbin support portion equipped with a weight measuring device for measuring weight; and a control mechanism controlling a rotation angle of the rotating shaft based on an output signal of the weight measuring device.