JPH02270773A - Wire rod feeder - Google Patents

Abstract

PURPOSE:To reduce the change of the path length between a bobbin and a guide roll by arranging a receiving roll and a delivering roll guiding the wire rod fed from the bobbin to the guide roll on a swing member swingable in the bobbin axial direction. CONSTITUTION:When the wire rod W wound on a bobbin 3 is delivered via a guide roll 4, a swing member 6 having a receiving roll 11 and a delivering roll 12 is oscillated and swung centering a rotary tube 9 in the axial direction of the bobbin 3, the change of the path length L between the bobbin 3 and the guide roll 4 is reduced, and the tension fluctuation of the wire rod W is suppressed. The rotary tube 9 is arranged on a straight line M connecting the outer periphery of the guide roll 4 and the axis of the bobbin 3, and the outer periphery of the delivering roll 12 is located on the line M. The tension fluctuation of the wire rod can be suppressed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a wire rod feeding device used, for example, in a continuous wire rolling mill.

[Conventional technology]

As a conventional wire rod feeding device of this kind, a bobbin shaft 2 is disposed on the machine body 1 as shown in Fig. 5.6, a bobbin 3 is attached to the bobbin shaft 2, and a central part in the width direction of the bobbin 3 is attached to the side of the bobbin 3. There is a known structure in which a guide roll 4 is disposed at the bobbin 3, and the round wire W wound around the bobbin 3 is sent via the guide roll 4 to a continuous rolling mill (not shown) which rolls it into a flat wire in this case. It is being

In this case, the path length of the wire rod W from the bobbin 3 to the guide roll 4 changes depending on the position at which it is pulled out from the bobbin 3, but this causes tension fluctuations, which acts as pack tension on the wire rod W during rolling processing, and improves the shape accuracy of the wire rod. Therefore, as shown in FIG. 7, a swinging roll 5 is disposed opposite to the guide roll 4, and the swinging roll 5 is
The tension of the wire moves toward and away from the guide roll 4, thereby absorbing changes in the path length and suppressing fluctuations in the tension of the wire.

[Problem to be solved by the invention]

However, in the case of the above conventional structure, although the swing roll 5 is used to absorb changes in the path length, its effect is not sufficient, and this causes tension fluctuations in the wire, resulting in, for example, wire shape accuracy during rolling. This has disadvantages such as lowering the

[Means to solve the problem]

The present invention is aimed at solving these inconveniences, and its gist is that the wire rod wound around the bobbin is sent out via a guide roll on the side of the bobbin, in which the above-mentioned bobbin and the above-mentioned guide roll A swing member that can swing in the axial direction of the bobbin is disposed between the bobbin and the bobbin, and a receiving roll and a sending roll for guiding the wire coming out of the bobbin to the guide roll are disposed on the swing member. There is a wire feeding device characterized by the following.

[Effect]

The swing member swings in the axial direction of the bobbin depending on the position at which the wire is drawn out from the bobbin, and the wire from the bobbin is sent to a guide roll via a receiving roll and a sending roll.

〔Example〕

1 to 4 show embodiments of the invention.

Incidentally, the same reference numerals are given to the same parts as those of the conventional structure shown in FIGS. 5 to 7.

Reference numeral 6 denotes a swing member, in which a mounting bracket 7 is attached to the machine body 1 between the guide roll 4 and the bobbin 3, and a rotating cylinder 9 is rotatably supported on the mounting bracket l-7 by a bearing 8. Two mounting arms 10 are fixedly protrudingly provided on the moving tube 9, the middle of the swing member 6 is fixedly mounted on the mounting arms 10, and a receiving roll 11 is rotatably mounted on the tip end side of the swing member 6. A delivery roll n is rotatably attached to the middle part of the swing member 6, a balance weight 13 is attached to the other end of the swing member 6, and the wire W is passed from the bobbin 3 through the receiving roll 11, the delivery roll n, and the rotating cylinder 9. The guide roller 4 is configured so as to reach the guide roll 4.

In this case, the swinging center of the swing member 6 is arranged on the orthogonal line M connecting the outer circumferential surface of the guide roll 4 and the axis of the bobbin 3, and the outer circumferential surface of the delivery roll minor is placed on the orthogonal line M. It is arranged so that it is located.

In this case, the swing roll 5 is attached to an arm that swings about a support shaft 14.

Since this embodiment has the above configuration, when the wire W wound around the bobbin 3 is sent out via the guide roll 4, the swing member swings as shown in FIG. 6 is oscillated in the axial direction of the bobbin 3, so that changes in the path length between the bobbin 3 and the guide roll 4 can be reduced, and fluctuations in the tension of the wire W can be suppressed.

In this case, the swinging center of the swing member 6 is arranged on an orthogonal line M connecting the outer circumferential surface of the guide roll 4 and the axis of the bobbin 3, and the outer circumferential surface of the delivery roll n is positioned on this orthogonal line M. , the path length from the receiving roll 11 to the guide roll 4 via the delivery roll is
is constant regardless of the swinging of the swing member 6, and due to the swinging of the swing member 6, the path length L2 from the wire rod W drawing position of the bobbin 3 to the receiving roll 11 becomes almost constant,
Therefore, the path length L(-
r, , +r, t) can be made as constant as possible, and fluctuations in the tension of the wire W can be suppressed to that extent.

Further, the swinging member 6 is smoothly oscillated by the balance weight 13.

〔Effect of the invention〕

As described above, in the present invention, the swing member swings in the axial direction of the bobbin depending on the position at which the wire is pulled out from the bobbin, and therefore, the change in the path length between the bobbin and the guide roll can be reduced.

As described above, the intended purpose can be fully achieved.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a side view, Fig. 3 is a plan view thereof, Fig. 4 is an overall side view, and Fig. 5 is a conventional structure. 6 is a side view thereof, and FIG. 7 is a side view of another example thereof. 3... Bobbin, 4... Guide roll, 6... Swing member, 11... Receiving roll, Hill... Sending roll. April 11, 1999 Applicant: Shishu Tekkosho Co., Ltd. Inventor: Yuzuru Kemi - Same
Fumi Karasawa Agent Yoshii
Showei／≦

Claims (1)

[Claims] A wire rod wound on a bobbin is fed out via a guide roll on the side of the bobbin, and a swing member that can swing in the axial direction of the bobbin is disposed between the bobbin and the guide roll, and A wire rod delivery device characterized in that a swing member is provided with a receiving roll and a delivery roll for guiding the wire coming out of the bobbin to the guide roll.