JPH0678156B2 - Automatic wire rod switching device in wire rod supply equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a wire rod automatic switching device in a wire rod supply device for supplying a wire rod to a continuous wire drawing device.

(Prior Art) A conventional wire rod supply device has a structure in which a stand on the upper surface of a base is rotated by a motor or an air cylinder. When the wire rod is rewound from one swift, the stand is moved to the other swift. Rotate to resume rewinding.
Then, by the time the rewinding of the wire rod in the other swift is completed, one empty swift is replaced and the rewinding start end of the wire rod in this new swift and the rewinding end end of the wire rod in the rewinding swift. Is welded and connected, and this is repeated to send out the wire rod to the continuous wire drawing device side.

(Problems to be Solved by the Invention) By the way, in the wire rod supply device described above, if the wire rod disappears from the swift during rewinding and the stand is not rotated at the optimum timing, the wire rod will be overwhelmed. I have a problem.

The present invention solves such a problem, and can automatically switch from the rewinding completed swift to the wire rod in the waiting swift, and the wire rod can be rewound and sent out without being stretched. An object is to provide an automatic wire rod switching device in a wire rod supply device.

(Means for Solving the Problems) In the wire rod automatic switching device in the wire rod supply device of the present invention, the rotatable stand on the upper surface of the base rotates on the side of the base on the parallel swift, and In a wire rod supply device that rewinds wire rods from the Swift and sends them to the continuous wire drawing device side, a wire rod hooking part on which the unwinding end of the wire rod can be suspended on a base, and the wire rod hooking part is located on this wire rod hooking part. A limit switch that can be contacted when the rewinding end of the wire rod is unwound and unwound from the part is provided, and a stopper that is integrally linked with the cylinder is attached to the base side and the stopper can be undocked to the stand side. Each hook has its own hook.When the wire comes into contact with the limit switch, the cylinder operates, the stopper disengages from the hook, and the stand receives the driving force of the rotation drive unit to rotate to the other swift. And It is characterized in that the stopper is engaged with the engaging portion on the same Swift so as to be re-locked.

(Operation) During unwinding, the unwinding end of the wire rod in the same swift is welded and connected to the unwinding start end of the wire rod in the waiting swift and suspended on the wire rod hooking part.

Then, as the rewinding progresses, the wire rod disappears from the swift during rewinding, and as the rewinding progresses to the end end of the rewinding, the end end of the rewinding comes off the wire rod hanging portion and comes into contact with the limit switch. At the same time, the cylinder operates and the stopper disengages from the engaging part, the stand rotates and moves onto the waiting swift, and the stopper reengages with the engaging part to re-lock to the same position and the swift at the standby position. Continue to rewind the wire. During this rewinding, the empty Swift is replaced and the connected wire rod is suspended on the wire rod hook.

Thereby, when the wire rod is completely rewound from the rewinding swift, the stand automatically rotates to the waiting swift, and the wire rod is automatically switched without being stretched,
It can be continuously rewound and sent out.

(Embodiment) An embodiment of the present invention will be described in detail below with reference to the drawings.

The drawing illustrates a wire rod supply device A including an automatic wire rod switching device B of the present invention, and C is a continuous wire drawing device.

The wire rod supply device A is provided with a stand 2 rotatably on the upper surface of the base 1, and the stand 2 receives a driving force of a rotation drive unit 3 such as a motor or a cylinder, and the side-by-side Swift 4, It is rotatable on 4. In this stand 2, a rewinding rod 5 hanging from the upper end portion is rotated so that the wire rod S can be rewound freely from a lower swift 4.

A supporting arm 6 is horizontally stretched on the upper end of the side surface of the base 1 on the side of the swift 4, and a mounting base 7 is swingably mounted on the supporting arm 6 with a hinge 8 on the side of the swift 4 as a fulcrum. A roller-shaped wire rod hooking portion 9 is pivotally supported on the base 7 toward the base 1 and a limit switch 10 is attached, and a contact 10a of the limit switch 10 is located on the wire rod hooking portion 9.

Further, a stopper 11 is provided at the upper end of the side surface of the base 1 in association with a cylinder 12 on the same side, and the stopper 11 is provided on the stand 2.
The rewinding rod 5 swivels 4,4
It is arranged so as to face the lower stopper 11 in a state of being respectively positioned above.

The limit switch 10 is in communication with the rotary drive unit 3 and the cylinder 12 through a computer (not shown). When the wire rod S comes off the wire rod hooking unit 9 and comes into contact with the contact 10a, the cylinder 12 operates and the stopper 11 Is disengaged from the engaging portion 13, and then the rotation driving portion 3 is operated to rotate the stand 2, and after that, the cylinder 12 is re-activated and the stopper 11 is engaged with the engaging portion 14.

Next, the wire rod supply device A sends the wire rod S to the continuous wire drawing device C (FIGS. 1 to 4), and the wire rod automatic switching device B automatically switches the wire rod (FIGS. 5 and 6). ) Is explained.

The rewinding rod 5 rotates to rewind the wire rod S from the lower Swift 4, and sends the wire rod S to the continuous wire drawing device C.

During this rewinding, the stand 2 stops at the engaging part 13
Since 11 is engaged, it is locked at the same rewind position and stopped (Fig. 4).

In addition, by utilizing this rewinding time, the rewinding end of the wire S in the rewinding swift 4 and the rewinding start of the wire S in the swift 4 switched to the standby position are welded and connected. The end of the rewinding is suspended on the wire hook portion 9 (Fig. 4).

When the wire rod S runs out of the swift 4, the rewinding end of the wire rod S suspended on the wire rod hooking portion 9 continues to be rewound.

At this time, the end of the rewinding of the wire rod S is disengaged from the wire rod hook 9 by swinging around the hinge together with the mounting base 7 so that the wire rod hook 9 is pulled upward by the wire rod S. It contacts the contact 10a of the switch 10. At the same time, the cylinder 12 is operated, the stopper 11 is disengaged from the engaging portion 13, and the stand 2 is unlocked (FIG. 5).

Also, the first hook of the continuous wire drawing device C is automatically stopped.

Next, the rotation drive unit 3 is operated, and the stand 2 moves the wire S
Is swung from the empty swift 4 that has been rewound to the standby swift 4, and the cylinder 12 operates again to stop.
11 is engaged with the engaging portion 14, the stand 2 is re-locked on the swift 4 at the standby position, and the wire rod S continues from the swift 4.
To rewind and complete automatic switching (Fig. 6).
Is continuously sent out to the continuous wire drawing apparatus C where the slack of the wire S during switching of the wire is eliminated by inching and operation is restarted.

As a result, the wire rod can be automatically switched from the rewinding completed swift to the waiting swift, and the wire rod can be continuously fed to the continuous wire drawing device C.

Further, in the above-mentioned embodiment, it is optional to make the wire rod hooking portion 9 substantially U-shaped so as to be fixed on the support arm 6 (not shown), which changes the gist of the present invention. is not.

(Effects of the Invention) Therefore, the present invention has the following effects.

The stand for rewinding the wire rod from the swift can automatically rotate from the rewound completed swift to the waiting swift to automatically switch the rewind wire rod.

Since the wire rods can be automatically switched at an optimal timing immediately after the rewinding is completed, the wire rods can be prevented from being stretched and the harmful effects caused by the strain can be eliminated.

At any time during rewinding, the swift replacement work, the connection between the rewinding end of the wire in the rewinding swift and the rewinding start of the wire in the waiting swift, and the swift movement during rewinding It is possible to perform the work of suspending the end of the rewinding of the wire rod on the wire hanging part at any time, significantly reducing the psychological and time burden of the worker, and being able to operate multiple devices by one person, thus saving labor. Is effective for.

[Brief description of drawings]

FIG. 1 is a front view illustrating a wire rod supply device equipped with the wire rod automatic switching device of the present invention in combination with a continuous wire drawing device;
The figure is a left side view, Fig. 3 is a partial plan view, Fig. 4 is a partially enlarged front view around the automatic wire rod switching device, and Fig. 5 is the end of the rewinding of the wire rod coming off the wire rod hooking portion and contacting the limit switch. FIG. 6 is a partially enlarged front view of the state in which the stand is rotated, and FIG. In the figure, A is a wire rod supply device B is an automatic wire rod switching device C is a continuous wire drawing device S is a wire rod 1 is a base 2 is a stand 3 is a rotary drive unit 4 is a swift 9 is a wire rod hooking unit 10 is a limit switch 11 is a stopper 12 Is the cylinder 13,14 is the engaging part

Claims (1)

[Claims] 1. A wire rod supply device in which a rotatable stand on the upper surface of a base rotates on a side-by-side side-by-side swift, rewinds the wire from the swift, and sends the wire to the continuous wire drawing device side. , A wire rod hanging part capable of suspending the end of rewinding of the wire rod on the base, and a wire rewinding terminal located on the wire rod hanging part can be contacted when being unwound and unwound from the wire rod hanging part A limit switch is provided, and a stopper integrally provided with the cylinder is provided on the base side, and a hooking portion on which the stopper can be hooked and unhooked is provided on the stand side, so that the wire rod contacts the limit switch. Is activated, the stopper is disengaged from the engaging portion, the stand receives the driving force of the rotation drive unit and rotates to the other swift, and the stopper engages with the engaging portion on the same swift to relock. What I did Wire automatic switching device in the wire supply apparatus characterized.