JPH0745502Y2 - Coil rewinding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a coil rewinding device, and more particularly to a coil rewinding device for rewinding a raw material coil in a coarse wire fed to a steel strip rolling mill.

(Prior Art) There is a coil rewinding device that rewinds a raw material coil in a rough wire shape and feeds it again to a rolling mill as an entrance side equipment of a rolled steel rolling equipment.
In such a coil rewinding device, it is necessary to have a stable rewinding operation and a stopping function, and particularly in the case of a high speed rewinding machine, it is necessary to have an effective braking and stopping function. The one shown in FIG. 6 is a non-driving draw-out reel in which a rewinding reel 21 around which a coil 20 is wound is fixed upward and a wire 22 drawn from one end of the reel is installed above the reel.
The structure is such that it is fed to the rolling mill 24 via 23. Further, in FIG. 7, a torque motor 26 is connected to the shaft end of a rewinding reel 25 which is horizontally supported on the entrance side of the rolling mill, and the rewinding reel 25 is provided with a braking and stopping function. There is.

(Problems to be Solved by the Invention) Among the above-described conventional rewinding devices, in the case of the coil upward fixing type shown in FIG. 6, the wire rod is pulled out from the reel end in the reel axial direction and is slackened downward from the upper relay reel. However, since it is sent to the rolling mill in the front, the wire tends to be twisted, and it is not suitable for high-speed operation, and the braking function at the time of emergency stop is not exerted. The torque motor type rewinding machine of FIG. 7 has problems that it takes time to load and unload the rewinding reel, and it is expensive.

An object of the present invention is to provide a coil rewinding device which has a rewinding resistance imparting function and a braking function at the time of stoppage, is easy to load and take out a take-up reel, and has an inexpensive and simple structure.

(Means for Solving the Problem) According to the present invention, a reel shaft protruding on both sides of the rewinding reel, and at least two supporting rollers arranged below the reel shaft and rotatably supported. A pressing roller that is arranged above the reel shaft and presses the reel shaft against the supporting roller, an electromagnetic brake device that is rotationally transmitted to at least one of the supporting rollers, and is arranged above the reel shaft. And an opening / closing lever that axially supports the pressing roller, and is located above the tip of the opening / closing lever,
And an opening / closing lever pressing means held detachably with respect to the opening / closing lever on a device frame accommodating the rewinding reel, the opening / closing lever pressing means transmitting rotation to the electromagnetic brake device. The opening / closing lever is pressed from above so that a rotational frictional force is generated between the supported roller and the reel shaft, and the opening / closing lever has a base end portion pivotally mounted on the device frame, and Provided is a coil rewinding device which is configured to be openable with the base end portion as a fulcrum by removing the opening / closing lever pressing means.

Further, according to the present invention, a reel shaft protruding to both sides of the rewinding reel, at least two supporting rollers arranged below the reel shaft and rotatably supported, and arranged above the reel shaft. A pressing roller that presses the reel shaft against the supporting roller, a braking gear that is adjacent to the supporting roller, an electromagnetic brake device that is rotationally transmitted to the braking gear, and is fixed to the reel shaft, and A coil rewinding device is provided that includes a braked gear that meshes with the braking gear, and an opening / closing lever that is arranged above the reel shaft and pivotally supports the pressing roller.

(Embodiment) Next, an embodiment of the present invention will be described with reference to the drawings.

1 is a partially cut plan view of a coil rewinding device according to an embodiment of the present invention, and FIG. 2 is a partially cut side view of FIG. The rewind reel 1 is inserted into a central taper portion of a reel shaft 2 which penetrates the reel shaft 1 and projects to both sides thereof, and is fixed to the reel shaft 2 by a cotter pin 3.
Both shaft necks 2a and 2b of the reel shaft 2 are respectively the device frame 4
Is rotatably supported so as to be sandwiched between three rollers, which will be described later, at the central upper edge portion of the. The wire rod is pulled out from the upper edge side of the reel 1 to the front side of the rolling mill (winding side), whereby the reel 1 rotates integrally with the reel shaft 2. The lower half of the rewind reel 1 is stored in the device frame 4,
Also, by removing the cotter pin 3, the reel shaft 2 can be easily
It can be pulled out from. The width D of the device frame 4 is the reel that also serves as the winder (the embodiment of FIG. 1).
It is formed in a wide width so that it can be mounted on either the reel for rewinding or the reel for rewinding.

FIG. 3 is a partially cut rear view seen from the arrow B of FIG. 1, and FIG. 4 is a partial front view seen from the arrow A of FIG.
First, referring to FIG. 4, one shaft neck portion 2a of the reel shaft 2
Is supported by a pair of lower support rollers 5 which are rotatably supported by the apparatus frame 4, and the upper pressing roller 6 is rotatably supported by a pressing arm 7 provided on the upper edge of the frame so as to straddle the shaft neck 2a. The shaft 6 is axially supported and the shaft neck portion 2a is pressed against the lower support roller 5 from above by the roller 6. The holding arm 7 is attached to the upper edge of the apparatus frame via pins 19 and 27 that can be inserted and removed at both ends, and by pulling out one of the pins, for example, the pin 19, the other pin 27 serves as a fulcrum for the arm 7. One end side is pivoted upward together with the pressing roller 6 to open.

Referring to FIGS. 1 to 3, the other shaft neck portion 2b of the reel shaft 2 is also supported by a pair of lower support rollers 8 pivotally supported by the apparatus frame 4, and a pressing roller 9 is provided from above. This pressing roller 9 is pivotally supported by an opening / closing lever 10 having a base end 10a pivotally attached to the upper edge of the apparatus frame 4. The tip 10b of the opening / closing lever 10 is
Inserted into a screw rod 12 pivotally attached to the upper edge of the device frame and closed by a nut 15 of the screw rod 12 via a belleville spring 11,
The pressing roller 9 presses the shaft neck portion 2b against the supporting roller 8 by this, and the pressing force and the weights of the reel shaft 2, the rewinding reel 1 and the coil cause the space between the shaft neck portion 2b and the supporting roller 8 and the pressing roller 9. A frictional force is generated and the rotation of the reel shaft 2 is transmitted to the supporting roller 8. By removing the nut 15 and the counter spring 11, the lever 10 is opened with the base end portion 10a as a fulcrum, and at the same time, when the holding arm 7 is opened by pulling out the pin 19, the reel shaft 2 is rewound in a horizontal state. At the same time, it can be taken out upward from the device frame 4. Therefore, in this embodiment, the opening / closing lever pressing means according to the present invention is composed of the screw rod 12 pivotally attached to the upper edge of the apparatus frame, the flat spring 11, and the nut 15.

An electromagnetic brake device 14 (or a powder brake) is provided on the device frame 4 below the support roller 8. In this electromagnetic brake device 14, the magnetic disk 14b is rotated so as to face the electromagnet 14a fixed to the device frame 4 and rotate.
It is stuck to c. An endless roller chain 13 is hung between the sprocket 16 fixed to the output shaft 14c and the sprockets 16a and 16b integrally provided on the support roller 8. In the illustrated embodiment, as clearly shown in FIG. 3, an intermediate sprocket 17 and a tension sprocket 18 also serving as a tension adjustment are provided, and a roller chain 13 is laid between them, and an electromagnetic brake device 14 extends from a supporting roller 8. Brake torque is transmitted. In the embodiment, the reel shaft 2
The frictional force between the shaft neck portion 2b and the supporting roller 8 is used to transmit the rotational force or the braking force between them, and as shown in FIG. 8 is provided with a braking gear 8a integrally or separately, and a braking gear 2d that meshes with the braking gear 8a is provided on the shaft neck portion 2b of the reel shaft 2, and an appropriate positive transmission means such as transmission by this gear engagement means is used. May be. Further, the upper pressing rollers 6 and 9 are not limited to one, and each two supporting rollers are a pair of supporting rollers.
You may make it located above 5 and 8 and hold down the shaft neck portion of the reel shaft.

In this way, during the high-speed rewinding operation of the coil, the electromagnetic brake device 14 applies braking or rewinding resistance to the rewinding reel 1 to stably supply the coil material to the rolling mill. When stopped, it can be stopped immediately by braking by the electromagnetic brake device 14.

(Effect of the Invention) As described above, according to the present invention, a simple brake device provides a rewinding resistance to perform stable high-speed rewinding and stop operation in normal and emergency situations. Also, by simply opening the levers and arms on both sides of the frame, you can easily take it out while keeping the reel shaft horizontal.
The structure is simple and there is an effect that an inexpensive non-drive type rewinding device can be obtained.

[Brief description of drawings]

FIG. 1 is a partially cut plan view of a coil rewinding device according to an embodiment of the present invention, FIG. 2 is a partially cut side view of FIG. 1, and FIG. 3 is a part seen from an arrow B of FIG. Rear view of cutting, Fig. 4 shows No. 1
FIG. 5 is a partial front view seen from the arrow A of the figure, FIG. 5 is a partial partially cut rear view showing a modification of FIG. 3, and FIG. 6 is a front view of a conventional coil upward fixed rewinding device. FIG. 7 is a plan view of a conventional torque motor type rewinder. 1 ... Rewind reel, 2 ... Reel shaft, 2a, 2b ... Shaft neck part, 2d ...
Braked gears, 4 ... Device frame, 5, 8 ... Support rollers, 8a
… Braking gears, 6, 9… Presser rollers, 7… Presser arms, 10…
Open / close lever, 11 ... Belleville spring, 12 ... Screw rod, 13 ... Roller chain, 14 ... Electromagnetic brake device, 19, 27 ... Pin.

Claims (2)

[Scope of utility model registration request] 1. A reel shaft projecting to both sides of a rewinding reel, at least two support rollers arranged below the reel shaft and rotatably supported, and arranged above the reel shaft. A pressing roller that presses the reel shaft against the supporting roller, an electromagnetic brake device that has been rotationally transmitted to at least one of the supporting rollers, is arranged above the reel shaft, and supports the pressing roller. The opening / closing lever, and an opening / closing lever pressing means that is located above the tip of the opening / closing lever and is detachably held with respect to the opening / closing lever on the device frame accommodating the rewind reel. The opening / closing lever pressing means presses the opening / closing lever from above so that a rotational frictional force is generated between the supporting roller transmitted to the electromagnetic brake device and the reel shaft. The coil rewinding is characterized in that a base end portion of the opening / closing lever is pivotally mounted on the apparatus frame, and the opening / closing lever can be opened with the base end portion as a fulcrum by removing the opening / closing lever pressing means. apparatus. 2. A reel shaft projecting to both sides of a rewinding reel, at least two supporting rollers arranged below the reel shaft and rotatably supported, and arranged above the reel shaft. A pressing roller that presses the reel shaft against the supporting roller, a braking gear that is adjacent to the supporting roller, an electromagnetic brake device that is rotationally transmitted to the braking gear, and that is fixed to the reel shaft and that has the braking force. A coil rewinding device comprising: a braked gear that meshes with a gear; and an opening / closing lever that is arranged above the reel shaft and pivotally supports the pressing roller.