JPH0643219B2 - Drum support device for winding and unwinding device - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a so-called carousel reel, and more particularly to a winding and unwinding reel supporting device.

[Background of the Invention]

A revolving multi-body winder called a so-called carousel reel, or a winder has two rotating drums that are provided point-symmetrically on a rotating body, and one of the drums is in a fixed position. During winding or unwinding, the strip coil already wound on the other drum is discharged or the strip coil for the next unwinding is inserted into the drum, and when this work is completed, the main body is wound or unwound. It is possible to complete the preparation for the next winding or unwinding by rotating 180 degrees (revolution) while continuing the above. In other words, since one unit serves the role of two units, continuous winding and unwinding are possible, and it is possible to improve productivity and reduce the equipment space (Japanese Patent Laid-Open No. 49- 9
8752, JP-A-49-77862).

The structure of this carousel type reel is shown in FIG. 6, FIG. 7, and FIG.
It is shown in FIG. 9, FIG. 10, FIG. 10 and FIG. Two revolving drum shafts 1 and 2 are mounted on a revolving casing 4 having a horizontal axis, and revolves alternately with a winding device and a coil payout position. The revolution casing 4 is a revolution shaft 5
The bearing 12 on the reducer side and the outer circumference of the revolution casing 4 are supported by two sets of support rollers 9 installed on the ground. A casing revolving gear is attached to the outer periphery of the revolving casing 4, and a revolving speed reducing gear installed near the support roller 9 on the ground and a pinion attached to the output shaft of the decelerator are engaged with the revolving gear. 4 is given a predetermined rotation. The drum shafts 1 and 2 are separately driven by separate motors 10. It is fixed on the ground and is decelerated by the speed reducer 8. The shafts 6, 7 pass through the revolving shaft 5 connecting the speed reducer 8 and the revolving casing 4, and are further distributed to the respective drum shafts 1, 2 in the revolving casing 4. To be done. The distribution is carried out by a gear shrunk in a shaft having a pinion and drum shafts 1 and 2.

Carousel type reel coil 3 having such a structure
In order to support the weight and the tension of the strip 3 ', a tip support 11 of the drum is fixedly installed on the ground only on the payout side of the coil. (See JP-A-48-93565).
Conventionally, when the casing 4 revolves, the tip support 1
I was removing 1.

Here, FIG. 9 shows a state in which the coil 3 has started to be wound around the drum 1, and shows the revolving start state in which the tip end support 11 is removed by the cylinder 13 via the support 12. FIG. 10 shows the state of revolution. In Figure 11, the revolution has been completed,
The state where the tip support 11 is attached is shown.

As described above, in the conventional device, the tip support 11 has to be removed when the casing 4 is revolving. On the other hand, there is a constraint that the drum diameter cannot be arbitrarily increased due to the relation with the equipment of the previous process or the next process or the product size standard. For this reason, due to the restriction on the strength of the drum, the weight of the revolving coil, the weight of the unwinding coil, and the tension applied to the strip 3'are limited, so that the production speed is reduced and the required tension cannot be added due to the restriction of the winding speed. There was a problem that the winding shape of the coil was disturbed due to poor quality and bending of the drum.

[Object of the Invention]

The object of the present invention is to enable the tip of the winding and unwinding drum to be supported even when the drum is revolving, and even when a large tension or weight is applied, the winding and bending of the unwinding cylinder and the vibration of the winding cylinder during high-speed rotation. An object of the present invention is to provide a tip support device capable of eliminating the adverse effect on the product coil due to.

[Outline of Invention]

In order to achieve the above object, the present invention provides a plurality of strip winding / unwinding drums capable of rotating on a side surface on one side of an orbitally driven rotating body at symmetrical positions about a central axis of the rotating body. In a winding and unwinding device in which one axial end of the rotary body is mounted by being axially attached, a support arm having a base end rotatably supported at a position coaxial with the rotation axis of the rotating body is provided. , Winding up the tip of this support arm,
The other end of the unwinding drum is pivotally attached, and a braking means is provided on the shaft of the base end portion of the support arm to counteract the tensile force of the strip and the resultant force of the weight of the coiled strip wound with the revolution of the revolution casing. It is characterized by that.

Example of Invention

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

FIG. 1 shows an elevation view of a tip support device according to the present invention.
In FIG. 1, the revolving casing 4, the support roller 9, and the drums 1 and 2 themselves are the same as those of the conventional one shown in FIG. 9, and the same parts as those of the conventional example are designated by the same reference numerals. Is omitted.

Reference numeral 20 denotes a column, and a turning center shaft 15 is provided so that the tip end portion thereof coincides with the rotation center of the revolution casing 4. The base end of the support arm 14 is pivotally supported by the turning center shaft 15. The tip of the support arm 14 is fitted on the shaft 2 ′ of the drum 2. FIG. 2 shows the plan view. FIG. 3 shows a more detailed welfare of the tip support device. An electric motor 19 is connected to the turning center shaft 15. As will be described later, the electric motor 19 has a support arm 1 for supporting the drum 1 at the time of winding the next coil after the drum 2 rotates as the revolution casing 4 rotates.
It is for returning 4.

A chuck mechanism for supporting the tip of the drum shaft 2'is provided at the tip of the support arm 14. As shown in the figure, for example, the check mechanism is composed of a cylinder 18 that can advance and retreat in the axial direction of the drum shaft 2'and a support head 16 at the tip of its piston shaft.
A bearing 17 interposed between the drum 1 and the drum 1 allows the drum 2 and the drum 2 to rotate. When attaching and detaching, the cylinder 18 may be driven back and forth.

Next, the operation will be described. Now, assume that the winding of the strip 3'on the drum 2 is started in the state shown in FIG. When the revolving casing 4 starts to revolve after being wound by a predetermined amount, the revolving casing 4 revolves clockwise in the drawing while continuing to wind the strip 3 ', as shown in FIG. The relationship between the tension T applied to the strip 3 ', the weight W of the coil 3 and the resultant force F to be supported by the tip support arm 14 at this time is shown in FIG. On the other hand, if the swivel shaft 15 is rotatable and the support head 16 is also rotatable, the drum shaft 2 ′ is resisted against the force due to the tension T and the weight W.
In order to support the force, as shown in FIG. 6, it is necessary to externally support a force that opposes a moment (M = F ·) generated by the ratio of the length of the tip support arm 14 and the resultant force F. Therefore, in this embodiment, the motor 19 is subjected to dynamic braking (dynamic braking) to support this counter force. This counter force changes depending on the position of the drum 2 that moves with the revolution, but the position change of the drum 2 is detected by electrical or mechanical means, and the control amount of the motor 19 is tracked according to each position change. Should be controlled. As another example of applying a counter force, it is also possible to use a mechanical friction brake or the like.

In this way, when the position of the drum 2 reaches the position shown in FIG. 7, the revolution of the revolution casing 4 is stopped. Then, when the winding of the coil is completed, the strip 3'is cut and wound around the drum 1 on standby to start winding. On the other hand, the coil 3 is removed from the drum 2 and conveyed to the next step.

The coil 3 can be removed by retracting the cylinder 18 to disengage the support head 16 from the drum shaft 2 '.

Next, the support arm 14 is rotated in the opposite direction and returned, the support head 16 is engaged with the tip of the drum shaft 1'of the drum 1, and thereafter, winding is performed in the same process as described above. At this time, the strip 3'is already wound around the drum 1, but since the amount is small, the drum 3 can be supported without any problem when it is heavy.

In the above description, one support arm 14 is used alternately, but two support arms 14 may be provided for each drum. In that case, it is necessary to individually provide the motor 19.

〔The invention's effect〕

As described above, according to the present invention, the winding and unwinding drum can support the tip of the drum even when it is revolving, and the winding, the bending of the unwinding drum and the high speed rotation can be performed even when a large tension or weight acts. It is possible to eliminate the adverse effect of the vibration of the winding drum on the coil of the product.

[Brief description of drawings]

1 is an elevational view showing an embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a side view showing details of a supporting device, FIG. 4 is an elevational view showing a revolution state, and FIG. 6 is an explanatory view showing the force acting on the drum, FIG. 6 is an explanatory view showing the resultant force, FIG. 7 is an elevation view showing the end of the revolution, FIG. 8 is an explanatory view of the carousel reel, and FIG. Perspective view, FIG. 10 is its side view, 1st
FIG. 1 is an elevation view showing a state before revolution, FIG. 12 is an elevation view showing revolution, and FIG. 13 is an elevation view showing completion of revolution. 1 ... Drum I, 2 ... Drum II, 2 '... Drum shaft,
3 ... Coil, 4 ... Revolution casing, 5 ... Revolution shaft, 6 ... Shaft I, 7 ... Shaft II, 8 ... Reduction gear, 9 ... Support roller, 10 ... Motor, 11 ...
… Conventional tip support, 12 …… Traditional tip support, 1
3 ... Cylinder I, 14 ... Support arm, 15 ... Rotation center, 16 ... Support head, 17 ... Bearing, 18 ... Cylinder II, 19 ... Motor, 20 ... Strut, 21 ... Casing.

Claims (1)

[Claims] Claim: What is claimed is: 1. On a side surface of one side of a revolving body that is driven to revolve, a plurality of strips capable of rotating around a central axis of the revolving body are wound, and an unwinding drum has one axial end portion thereof. In the winding and unwinding device mounted by being attached to a shaft, a support arm having a base end portion rotatably supported at a position coaxial with a rotation axis of the rotating body and having a center of rotation is provided, and a tip end of the support arm. Is wound around the other end of the winding and unwinding drum, and counteracts the tensile force of the strip and the resultant force of the weight of the wound coil strip on the shaft of the base end of the support arm as the revolution of the revolution casing revolves. A drum support device for a winding and unwinding device, characterized in that it is provided with a braking means.