JPH077739B2 - Amorphous metal core manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application] The present invention relates to an apparatus for producing an amorphous metal magnetic core formed by winding an amorphous magnetic metal ribbon.

(Prior Art) In recent years, an amorphous magnetic metal ribbon has been attracting attention as a material forming a transformer core or a magnetic core for a magnetic amplifier because of its extremely excellent magnetic characteristics.

The amorphous magnetic metal is used by cooling the molten alloy at ultra-high speed to form a ribbon and winding it.

Conventionally, a wound magnetic core made of an amorphous magnetic metal ribbon is manufactured, for example, as follows.

That is, first, a winding jig is manually set on a winding device having a rotating shaft, and then the amorphous magnetic metal ribbon is wound by setting the number of windings so that a predetermined weight is obtained. Next, the winding body is fixed by a jig or an adhesive tape so that the winding shape does not collapse, and then the amorphous magnetic metal ribbon is cut. After that, the winding body is removed together with the winding jig from the winding device to obtain a target winding magnetic core.

(Problems to be Solved by the Invention) By the way, as described above, in the conventional method for manufacturing an amorphous metal magnetic core, the work that must be manually performed, such as setting and removing the winding jig on the winding device. There are many. In addition, since the amorphous magnetic metal ribbon is manufactured by the quenching method, the thickness of the ribbon varies, which is an important factor that determines the characteristics of the winding core when the work is continued with the same number of turns. That is, the weight changes. This variation in thickness repeats almost the same increase and decrease in the same lot. Therefore, in order to prevent the variation in weight due to the variation in thickness, the weight of the wound magnetic core is measured, and the work is performed next. The number of windings is estimated so that the product has a predetermined weight, and the number of windings is set to perform the winding process.

As described above, among the manufacturing costs of the amorphous metal magnetic core, the number of man-hours required for human work during the process occupies a large amount of time, which is a major obstacle to cost reduction.

The present invention has been made in view of such conventional problems, and an object of the present invention is to provide an apparatus for manufacturing an amorphous metal magnetic core which reduces the time required for winding and has a stable weight.

[Structure of the Invention] (Means for Solving the Problems) An apparatus for manufacturing an amorphous metal magnetic core according to the present invention is a winding treatment for holding and rotating a winding jig which is vertically movable at a predetermined winding work position. A tool driving device, a moving device for moving the winding jig to a predetermined position on the same plane, and a three-axis direction for holding an end portion of the amorphous magnetic metal ribbon and moving it to a predetermined position. A first clamp, a second clamp that holds the end of the adhesive tape and moves it to a predetermined position and is movable in three axial directions, and a first clamp that cuts the amorphous magnetic metal ribbon after the winding operation. Cutting device, a second cutting device for cutting the adhesive tape, and a first measuring device for measuring the weight of the winding jig before winding work.
Measuring device, a second measuring device for measuring the weight of a winding body including the winding jig after winding work, the winding jig driving device, the winding jig moving device, the first clamp and the second And a controller for controlling the operation of the clamp and controlling the number of rotations of the winding jig drive device based on the weight measurement results by the first measuring device and the second measuring device.

(Operation) In the amorphous metal magnetic core manufacturing apparatus of the present invention, the operation sequence of the winding jig driving device, the winding jig moving device, the first clamp, and the second clamp is input to the controller in advance as a program. By doing so, the winding body of the amorphous magnetic metal ribbon can be automatically obtained in a short time, and the weight of the winding body can be determined by utilizing the periodicity of the variation of the thickness of the amorphous magnetic metal ribbon. By inputting to the controller a program for estimating the number of turns of the next winding from the measurement result, a stable weight of the amorphous metal magnetic core can be obtained.

(Example) Next, the Example of this invention is described, referring drawings.

FIG. 1 is a plan view showing an apparatus for manufacturing an amorphous metal magnetic core according to an embodiment of the present invention. In the figure, reference numeral 1 denotes a rotary shaft which is arranged at a winding work position B so as to be able to move up and down, holds a winding jig 14 and rotates it to wind an amorphous magnetic metal ribbon 15. Then, the winding jig 14 is moved from the winding jig supply position A to the winding work position B and the first measuring device 2 arranged above the winding work position for measuring the weight of the winding jig 14 before the winding work. A first winding jig moving cylinder 4 is installed. The winding body including the winding jig 14 is moved to the second measuring device 3 for measuring the weight of the winding body including the winding jig 14 wound at the winding work position B and to the work end position C. A second winding jig moving cylinder 5 is arranged.

The amorphous magnetic metal ribbon 15 and the adhesive tape 16 are arranged on the rotatable holding shafts 11 and 12 in a wound state.
The first clamp 6 and the second clamp 7 sandwich and hold the free end portion of the wound body of No. 1, and the first clamp 6 and the second clamp 7 are moved by a moving device (not shown).
Each of them is movable in three axial directions including a predetermined position in the vicinity of the winding jig 14 arranged at the winding work position. A first cutter and second cutters 8 and 9 are arranged along the paths of the amorphous magnetic metal ribbon 15 and the adhesive tape 16, and the amorphous magnetic metal ribbon 15 has a tension roller. 13
The appropriate tension is given by. Further, reference numeral 10 in the figure denotes a pressing roll that presses the amorphous magnetic metal ribbon 15 and the adhesive tape 16 against the side surface of the winding jig 14 at the start and end of the winding operation.

The operation of the first and second winding jig moving cylinders 4 and 5 and the first and second clamps 6 and 7 is controlled by a program (not shown) by a controller (not shown). Further, the operation of the rotary shaft 1, in particular the number of revolutions, is controlled so as to obtain a constant winding weight according to the measurement results of the first and second measuring devices 2 and 3.

Next, an example in which a rectangular amorphous metal magnetic core is manufactured using the amorphous metal magnetic core manufacturing apparatus of this embodiment will be described.

First, as shown in FIG. 1, the winding jig 14 is arranged at the winding jig supply position A. The winding jig 14 is moved to a predetermined position of the first measuring device 2 by the first winding jig moving cylinder 4. Then, the weight of the winding jig before the winding operation is measured. Next, the winding jig 14 is moved to the winding work position B above the rotating shaft 1, and the rotating shaft 1 is raised to move the winding jig 14
It is inserted into the center hole 14a of the and is positioned.

Next, as shown in FIG. 2 (a), an amorphous magnetic metal ribbon
The first clamp 6 for holding the free end of 15 and the second clamp 7 for holding the free end of the adhesive tape 16 are located near the side surface of the winding jig 14 which is fixed at a fixed position by the rotary shaft 1. Amorphous magnetic metal ribbon 15 is moved and held by the pressing roller 10.
And the adhesive tape 16 with the adhesive tape 16 facing up
It is pressed to the side. In this state, the winding jig 14
The rotating shaft 1 operates so as to make ˜3 rotations. Next, as shown in FIG. 2B, the adhesive tape 16 is cut by the second cutter 8 and, after the pressing roller 10 is separated, the rotary shaft 1 has a linear velocity of the amorphous magnetic metal ribbon of 10 to 50 m. The winding work is started by rotating at a rotation speed of / min, the operation of the rotating shaft 1 is stopped after the number of windings set by the controller, and the wound body as shown in FIG. .

Then, as shown in FIG.
The second clamp for holding the free end of the tape approaches, and the pressure roller 10 presses the adhesive tape 16 against the outermost layer surface of the amorphous magnetic metal thin ribbon 15. The rotating shaft 1 operates so as to rotate, and the adhesive tape 16 is fixed so that the shape of the winding body made of the amorphous magnetic metal ribbon 15 does not collapse. Thereafter, as shown in FIG. 7E, the supply roll side of the amorphous magnetic metal ribbon 15 and the adhesive tape 16 is clamped by the first and second clamps, and then the first and second cutters 8 are provided. , 9 respectively, the rotary shaft 1 is lowered, and the winding operation is completed.

Then, as shown in FIG. 1, the second winding jig moving cylinder 5 is moved to a predetermined position of the second measuring device 3 and includes the weight of the winding jig 14 after the winding operation. The weight of the roll is measured. After that, it is moved to the work end position C and one cycle is completed, and the target amorphous metal magnetic core is obtained.

Next, control of the number of turns of the amorphous magnetic metal ribbon will be described.

Since the thickness of the amorphous magnetic metal ribbon repeats almost the same increase and decrease in the same lot, as shown in FIG. 3, there is a constant cycle in which the weight varies due to the variation in thickness. There is. Then, using this cycle, the weight of the wound body made of the amorphous magnetic metal ribbon is sequentially measured, and at least the front 2
By inputting a program that estimates the number of turns of the next winding work from one or more measurement results, the weight per wound body shown with diagonal lines in the figure falls within the allowable range of variation. To do.

[Effects of the Invention] As described above, according to the apparatus for manufacturing an amorphous metal magnetic core of the present invention, the amorphous metal magnetic core formed of the wound body of the amorphous magnetic metal ribbon is automatically and in a short time. In addition, it is possible to manufacture the amorphous metal magnetic core with a stable weight, and to significantly reduce the manufacturing cost of the amorphous metal magnetic core.

[Brief description of drawings]

FIG. 1 is a plan view showing an outline of an embodiment of the present invention, FIG. 2 is a plan view showing a part of a manufacturing process using the same, and FIG. 3 is a weight fluctuation of an amorphous magnetic metal ribbon. It is a graph shown. 1 ... Rotary shaft 2 ... First measuring device 3 ... Second measuring device 4,5 ... Cylinder for moving winding jig 6 ... First clamp 7 ... Second clamp 8 ... Second 1st cutter 9 ... 2nd cutter

Claims (1)

[Claims] 1. A winding jig driving device which is arranged to be movable up and down at a predetermined winding work position and which holds and rotates a winding jig, and a moving device which moves the winding jig to a predetermined position in the same plane. , A first clamp that holds the end of the amorphous magnetic metal ribbon and moves it to a predetermined position, which is movable in three axes, and a third clamp that holds the end of the adhesive tape and moves it to a predetermined position. A second clamp that can be moved to, a first cutting device that cuts the amorphous magnetic metal ribbon after winding work, a second cutting device that cuts the adhesive tape, and the pre-winding work. A first measuring device for measuring the weight of the winding jig, a second measuring device for measuring the weight of a winding body including the winding jig after the winding work, the winding jig driving device, and the winding jig. Controlling the movement of the moving device, the first clamp and the second clamp, and the first measuring device Preliminary second measuring device amorphous metal magnetic core manufacturing apparatus characterized by comprising a controller for controlling the rotational speed of the weighing results from the winding jig driving device according to.