JP3481085B2 - Stacking method and stacking device for iron core material - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention winds a core material composed of a strip of amorphous magnetic alloy ribbon by a one-turn cut method,
For example, in the case of manufacturing a wound iron core used for a transformer for power distribution, when winding the wound iron core with an iron core material cut in the required length dimension, a plurality of layers are formed in a step in one block, and each step is Core material that is laminated smoothly and satisfactorily in order with different interval dimensions, and that allows the winding core to be wound quickly and reliably with the joints arranged within the window size of the core. Laminating method and laminating apparatus.

[0002]

2. Description of the Related Art Today, as a magnetic material for a wound iron core used in a distribution transformer or the like, an amorphous sheet base plate (amorphous magnetic alloy) is used in place of the conventionally used directional silicon steel strip. Ribbons or simply amorphous) have come into use. Therefore, the sheet material formed by cutting the amorphous sheet blank into a predetermined length is
The manufacturing process is different from the conventional directional silicon steel strip,
Rapid cooling was required to solidify the molten metal without crystallizing it. That is, the molten metal is jetted onto the outer peripheral surface of the cooling roll which is a fixed refrigerant, and by cooling and solidifying this in an extremely short time, an amorphous state is obtained, so that the thickness of the sheet material is The thickness difference was limited to an extremely thin one, and the thickness difference of the end face in the width direction generally had a thickness deviation of several microns.

When a wound iron core is manufactured using the above sheet material, the uncut type wound iron core is continuously wound directly in a circular or rectangular shape without cutting the sheet material, and when the sheet material is used. There is a case where a one-turn cut type winding iron core is formed in which the winding iron core is cut into a predetermined length and sequentially wound around a winding core to join both ends thereof.

However, when the sheet material is wound to form the wound iron core by the uncut method or the one-turn cut method as described above, the sheet material itself has one plate thickness t _{1 as} shown in FIG. Since there is a plate thickness deviation (t ₁ −t ₂ ) in the width direction with respect to the plate thickness t ₂ of the sheet material 200, if the winding of the sheet material 200 is continued in this state, the sheet thickness deviation of the sheet material 200 becomes The larger the number of windings, the larger the number of windings. As shown in FIG. 26, the cross section of the wound core 201 is inclined in shape.

In the above case, since the laminated thickness of the wound core 201 is preset, the wound core 2 shown in FIG.
Since the thick plate portion of 01 (t _1n side) has reached the specified thickness, the space factor of the iron core can be increased by winding it tightly, while the thin plate portion (t _2n side) is Since the specified laminated thickness has not been reached, there is a problem that a gap occurs between the sheet materials 200 and the space factor of the iron core is reduced.

[0006]

As described above, when the thickness of the wound iron core is smaller in the width direction than the other one, the tightening pressure in the wound iron core is larger than that of the thicker one. Was stronger, and the thinner one was weaker, and there was a problem that the rigidity of the wound core itself became unbalanced. Further, the reduction of the space factor of the iron core causes a problem that not only a predetermined weight of the iron core cannot be obtained, but also the cross-sectional area of the iron core through which the magnetic flux flows is small, and as a result, the magnetic flux density increases and the loss increases.

In order to solve the problem relating to the space factor of the iron core and improve it, for example, Japanese Patent Publication No. 2824.
In No. 3, in the process of manufacturing a wound iron core by winding the sheet material by a one-turn cut method or a non-cut method, the sheet material is cut once during the winding, and its widthwise end is 180 °. It is shown that the winding work is performed by turning the winding work. When the winding work is performed several times to wind one winding iron core, the adverse effect of the plate thickness deviation is eliminated by performing the winding work several times, and A method that attempts to improve the space factor is shown.

However, in the above method, the sheet material is cut each time while the operation is stopped several times during the winding of the wound iron core, and in this state, the sheet material (the material is wound in a hoop shape). Was rotated 180 °, and then the sheet materials were spliced again and the winding was restarted. Therefore, the winding work of the wound core takes much time and labor, and the sheet material wound in the hoop shape is required. Is rotated several times during the winding, the hoop-shaped sheet material itself is considerably large,
Moreover, because of the heavy weight, the turning work requires time and labor, which reduces the operation rate of the winding work, which is a major factor that hinders the manufacturing efficiency of this type of wound core.

When the sheet material is used as an iron core material for winding a one-turn cut type winding iron core, the sheet material obtained by cutting the amorphous sheet blank into a required length has a thickness of Approximately 1/10 compared to the raw steel strip
Thinner when, for example, as shown in FIG. 24 having the same length dimension and laminating a plurality to form a one layer of the sheet material plate A _1, the sheet workpiece A ₂ of the following layer, the front layer Sheet base plate A ₁
Is obtained by adding the plate thickness dimension t to the length dimension L of
It was formed by cutting an amorphous sheet blank with a length dimension of 2πt. Thereafter, in the same manner, the sheet base plates A ₁ to A ₁ to
A ₅ is formed, and then these sheet base plates A _{1 to} A ₅
Are stacked in a stepwise manner for a predetermined number of layers, for example, five layers while maintaining the spacing dimension for the overlap margin T, and for example, as shown in FIG. 24, a wound sheet body B ₁ for one block is formed. Similarly, the wound sheet bodies B _{2 to} B ₃ of the respective blocks are formed in the subsequent layers and thereafter.

Then, the wound sheet bodies B _{1 to} B ₃ are wound one by one in a circular shape by a winding machine (not shown) to form a wound core element body 301, and each wound sheet element is formed. When a part of the joint portion 302 of the sheet base plates constituting the bodies B _{1 to} B ₃ is displaced due to friction, slip, or the like during winding, the allowable inner window size X-Y of the wound core element body 301 It may protrude from the edge. That is, as shown in FIG. 24, the joint portion 302 of the sheet base plate A ₅ has the above-mentioned window internal dimension X.
Jump out of the -Y range, and in this state, roll core element body 301
Since the joint portion 302 is located at the corner portion of the rectangular iron core (not shown) when it is formed into a rectangular shape, the wound iron core is opened at the joint portion 302 to be incorporated into the winding, and then the joint portion 3 is formed.
When rejoining No. 02, since the joining portion 302 is located at the corner portion, there is a problem that joining work takes time and labor, and the iron core assembling work cannot be performed smoothly.

In order to solve the above problem, for example, the number of laminated sheet blanks per block is reduced (for example, 5).
The number of layers is reduced by 1 to 4 layers), but the problem is solved, but with this, the number of laminated sheet blanks per block decreases, but conversely, the number of blocks per winding core increases. As a result, the winding work of the wound iron core takes time and labor, and there is a problem in performing it quickly and efficiently.

In view of the above problems, the present invention improves the method of stacking a predetermined number of layers of an iron core material used for a one-turn cut type winding iron core made of an amorphous magnetic alloy ribbon. In addition to solving the adverse effect caused by the thickness deviation of the material, when winding the stacked core material,
A method for automatically stacking and stacking core materials, and a stacking method for core materials, in which the joints can be placed and wound within a preset window size range of the wound core. And to provide a stacking device therefor.

[0013]

A method for stacking iron core materials according to claim 1 of the present invention is a sheet in which a plurality of amorphous sheet base plates are laminated and sequentially cut into a predetermined length dimension. A step of alternately superposing the material on the front surface and the back surface of the material for a required layer to form one sheet of a sheet base plate; and a sheet base plate having a short cutting dimension within one block of the sheet base plate Then, the sheet blanks, which have been sequentially lengthened and cut by a predetermined length dimension, are stacked in a stepwise manner as they face downward, and the step portions have different spacing dimensions, so that one block portion is stacked. And a step of forming a wound sheet body.

According to a second aspect of the present invention, the method for stacking rolled sheet bodies is such that the distance between the step portions of each sheet blank forming one block is the shortest sheet element within one block. From the plate to the longest sheet base plate, the distance between the step portions of each layer sheet base plate is sequentially reduced, and the sheet base plates for one block are stacked stepwise to form a wound sheet base body. It is characterized by having done.

According to a third aspect of the present invention, the method for stacking wound sheet bodies is such that each sheet element in each block is moved from the first block located in the innermost layer of the wound iron core to the final block in the outermost layer. Set the step size of the plate to be different for each block and set to the optimum length size.
It is characterized in that the sheet base plates for blocks are stacked in a stepwise manner to form a rolled sheet base body.

According to a fourth aspect of the present invention, in the method for stacking rolled sheet bodies, the sheet base plate having the maximum length dimension in one block is arranged at the lowermost stage, and the length dimension is specified below. Sheet material plates that are shortened sequentially for each dimension of
In addition, each of the step portions is sequentially lengthened to be laminated for a predetermined number of steps, and each time one block of the sheet base plates is laminated by one layer, the sheet base plates already laminated are formed into a side end surface in the width direction. Are aligned and are pressed and held after the alignment to form a wound sheet body.

In the stacking apparatus for iron core material according to claim 5 of the present invention, a sheet material provided by sequentially cutting a plurality of amorphous sheet blanks into a predetermined length in a state of being laminated with each other is used. Laminating means for alternately laminating the back surfaces with each other by a required layer to sequentially laminate one sheet of sheet blank, and sandwiching the sheet blank laminated by the laminating means for each sheet blank to stack them. Pull out from the means, stepwise, and
Sheet element body laminating means for forming a wound sheet element body for one block by sequentially laminating a plurality of steps with different interval dimensions of step portions of each sheet material plate, and further driving the respective means in accordance with a predetermined sequence. A control means for controlling is provided.

According to a sixth aspect of the present invention, there is provided a sheet element stacking means for holding a sheet material plate and a conveying device for linearly moving the holding device to a predetermined position to stack the sheet material plates in a stepwise manner. A stacking device, an aligning device that aligns the conveyed sheet blanks, a pressing device that presses and holds the aligned sheet blanks until the next sheet blank is stacked, and each of these devices according to a predetermined sequence. It is characterized in that it is configured by being provided with a control means for controlling driving.

The sandwiching device according to claim 7 of the present invention is
A pair of sandwiching pieces for transporting the sheet material plate by sandwiching the end portions in the lengthwise direction, a cylinder for driving the sandwiching pieces to open and close, a cylinder for raising and lowering the sandwiching device itself, and further advancing and retracting the sandwiching device. It is characterized in that it is configured to include a driving device for driving the cylinder and the like, and control means for driving and controlling the cylinders and the like in accordance with each sequence of pinching / conveying / unpinning in the pinching device.

[0020]

In the stacking method for iron core material composed of amorphous sheet blanks according to claim 1 of the present invention, a sheet material obtained by polymerizing a plurality of amorphous sheet blanks and sequentially cutting them into a predetermined length dimension. Are alternately polymerized on the front surface and the back surface, and the required layers are laminated by laminating means 1
A stack of sheet blanks is continuously formed, and each time this stack of sheet blanks is stacked by one stack, it is sandwiched by the sandwiching means and pulled out from the stacking means, and a predetermined number of stacks are successively stacked in a stepwise manner for one block. Since the wound sheet body is formed, the wound sheet body is a sheet material at the time of formation of the sheet base plate, the front surface thereof is the front surface, and the back surface is alternately polymerized on the back surface. The plate thickness deviation in the width direction becomes uniform, the adverse effects due to the plate thickness deviation can be reliably eliminated, and the core space factor of the wound iron core can be favorably improved.

Further, when stacking the sheet blanks in the required layers in a stepwise manner, the linear movement range of the sandwiching means for sandwiching the sheet blanks is varied, and the interval dimension of each step portion (overlap of the sheet blanks).
Since the wound sheet body is formed so that the length and the short length occur, that is, the space dimension in each step portion should be determined by arranging a plurality of sheet material plates in advance at the space dimension. By checking in advance by a test or the like whether the joint portion of the wound sheet body shown in FIG. 24 does not protrude from the window inside dimension of the wound core, the wound sheet body can be set in one block. It is possible to increase the number of laminated sheet base plates, and as a result, the winding work of the wound core can be performed quickly and efficiently. Note that FIG.
In FIG. 4, the joint portion of the sheet base plates is illustrated with a wide gap, but in reality, most of the gap is narrower than the illustrated state.

In the stacking method of the core material composed of the amorphous sheet blank according to the second aspect of the present invention, the interval dimension of each step in the sheet blank of the required layer constituting the wound sheet blank is: Since it is set so as to be sequentially shortened from the sheet material plate of the innermost layer to the sheet material plate of the outermost layer of the wound sheet material forming one block, the joint portion of the sheet material plate of the innermost layer in each block is set. By winding at the position of the inside dimension of the window, the interval dimension of the sheet base plate located in the outermost layer of each block is considerably smaller than that of the innermost layer of each block. It is possible to satisfactorily prevent the situation where the joint part extends out of the window size of the wound iron core, and it is possible to increase the number of sheet base plates in one block. This makes it possible to use an iron core material made of an amorphous sheet base plate. The manufacture of wound cores of Te rapidly and can be easily performed, it is possible to achieve improved productivity of wound cores.

In the stacking method of the core material made of the amorphous sheet blank according to the third aspect of the present invention, each block of the wound core constituted by the wound sheet body is formed in the innermost layer of the wound core. From the block located to the block forming the outermost layer, the interval dimension in the step portion of each sheet blank constituting each block is set to an optimum length for each block, so the sheet blank in each block The number of laminated layers can be increased more in the blocks located on the outer layer side of the wound core than in the blocks wound on the inner layer side. As a result, the number of stacked sheet base plates per block is increased as the block located on the outer layer side is reduced to reduce the number of blocks in which the sheet base plates constituting the wound core are stacked, and the wound core is wound. Work can be done efficiently.

In the stacking method of the core material made of the amorphous sheet material plate according to the fourth aspect of the present invention, each block of the wound core formed by the wound sheet element body is a sheet element forming one block. The plate with the longest one in the block is the bottom, and the following is the sheet material plate of a predetermined layer whose length dimension is shortened in sequence, and the interval dimension of each step is sequentially from the bottom to the top. Since the rolled sheet body for one block is formed to be long, the rolled sheet body forming each block is stable in stacking work of the sheet blanks and By setting the winding start end of the shortest sheet raw plate from the winding start position of the window inside dimension of the winding core, the interval dimension of other sheet raw plates in the block is set to be gradually reduced. Thus, it is possible to satisfactorily arrange the joint portion of the sheet base plates within the window size, and when stacking the sheet base plates, it is possible to align the side edges in the width direction. The winding work of the wound sheet element of the block is smooth, and the problem that the amorphous sheet element plate is projected from the laminated end surface by surely making the plate thickness of the laminated end surface of the wound core itself uniform, A winding core with excellent core characteristics can be wound.

In the apparatus for stacking the iron core material made of the amorphous sheet raw plates according to the fifth aspect of the present invention, the sheet material made of the amorphous sheet raw plates cut into a predetermined number of sheets in a predetermined length dimension has a width thereof. The required layers are superposed so that the plate thickness in the direction becomes uniform to form a sheet material plate for one lamination, and the sheet material plates are predetermined one step at a time in a stepwise manner with each step portion having a different interval dimension. Since the sheet element stacking means is configured by stacking layers to form a wound sheet element for one block, the wound sheet element has a sheet element plate for each block of the wound core. It is possible to form the joining portions of the sheet raw plates continuously and within the window size range of the iron core to stack them quickly and surely.

In the stacking apparatus for iron core material composed of the amorphous sheet blanks according to claim 6 of the present invention, when stacking the sheet blanks forming the wound sheet blank, the sheet blanks of each layer are stacked. An aligning device and a pressing device are provided, which are arranged each time the sheets are stacked, and in which the sheet blank of the next layer is placed on the sheet blank of the previous layer in a state of being pressed. Therefore, in the stacking operation of the sheet base plates, the sheet base plates can be always maintained in the aligned state and the required layers can be stacked, so that the wound sheet base bodies can be automatically formed by the mechanization means and quickly formed. Therefore, it is possible to efficiently wind a wound iron core having excellent iron core characteristics.

The stacking apparatus for iron core material composed of the amorphous sheet blanks according to claim 7 of the present invention is constituted by means of means for pinching, conveying and unpinching the sheet blanks. When carrying out stacking by transporting the sheet blanks to a predetermined position, a plurality of amorphous sheet blanks forming the sheet blanks may be displaced, or
It is possible to smoothly move to a predetermined transport position without causing any misalignment phenomenon, and since the stacking work can be performed in synchronization with the aligning and pressing device, it is possible to configure each winding core. The wound sheet bodies of the blocks can be easily stacked and formed by the mechanization means.

[0028]

Embodiments of the present invention will be described below with reference to FIGS. In describing the stacking apparatus (method) for iron core material of the present invention, an embodiment for forming an iron core material for stacking will be described with reference to FIGS. 1 to 8. An embodiment of an apparatus for winding / forming a wound iron core using the iron core materials stacked by the stacking apparatus (method) of the present invention will be described with reference to FIGS. 18 and 20. First, the manufacturing process of the wound core will be schematically described.

The manufacturing process of the wound core is roughly divided into a cutting process of the amorphous sheet blank A and a cut sheet material B.
And the step of stacking the required number of sheet materials B to form the sheet blank C, and stacking the required number of the sheet blanks C to form the wound sheet blank D for one block. The method comprises a step and a step of forming the wound iron core 80 by winding the wound sheet body D for one block a predetermined number of times.

In each of the above steps, the steps of manufacturing the stacked core materials are as follows: As shown in FIGS. 1, a reversing device 11 for forcibly reversing the surface side of the cut sheet material B while being conveyed, and a pair of loading devices 21a and 21b for temporarily loading and holding the reversed sheet material B. In FIGS. 7 and 8, the sheet material B sequentially fed from the loading devices 21a and 21b is maintained in the inverted state (back surface side) and inverted in the normal rotation (front surface side) direction. It is configured by a laminating device 31 that alternately forms the required layers to form a single sheet sheet C of the amorphous sheet sheet A.

In the winding process of the iron core material, the sheet blank C is used.
A sheet-element stacking device 45 of the present invention that stacks the sheet-shaped sheets in a step-like manner in a step-like manner to form a wound sheet element body D for one block, and a conveyor device 61 that conveys the wound sheet element body D. And a winding device 65 for sequentially winding the conveyed wound sheet body D in a circular shape,
Furthermore, each of the devices 1, 11, 21a, 21b, 31, 4
5, 61 and 65 are electrically connected to a control device 75 (see FIG. 5) that drives and controls them according to a predetermined sequence.

Next, a cutting device 1 for cutting the amorphous sheet blank A into a predetermined length dimension and a device for conveying the cut iron core material (sheet material B) will be described with reference to FIGS. 1 to 4. First, a case will be described in which the amorphous sheet base plate A is cut in a preset length dimension to form the sheet material B. In FIG. 1, reference numeral 2 denotes a rewinding device for rewinding an amorphous sheet (amorphous magnetic alloy ribbon) sheet A as a hoop material in a predetermined length dimension. The amorphous sheet sheet A is a motor not shown. It is wound around a drum 3 driven by the above. In the present embodiment, since the amorphous sheet blanks A are stacked and cut, the drum 3 wound with the amorphous sheet blanks A is wound.
An example in which 5 units are used will be described. The amorphous sheet blank A wound on each drum 3 is
Are each driven by an electric motor to rewind, and the rewound amorphous sheet blank A is rewound to the cutting device 1 side shown in FIG. 2 via the guide rollers 4 and 5.

Then, each of the amorphous sheet blanks A unwound from the drum 3 is temporarily loosened in a loop at the end of the guide roller 5 of the rewinding device 2 to form five layers. The setting of the loop L length of the amorphous sheet base plate A slackened in a loop is performed by, for example, using a detection device equipped with a light emitting and light receiving element (not shown).
When the lower end of the light emitting element hangs down by a predetermined length, when the light emission from the light emitting element is blocked by the amorphous sheet base plate A and is no longer received by the light receiving element, the motor of the rewinding device 2 is driven by the signal emitted from the light receiving element. When the light-receiving element receives light emitted from the light-emitting element, the motor is restarted,
The amorphous sheet blank A is unwound to keep the length of the loop L constant. The adjustment of the loop L is performed by controlling the drive of the rewinding device 2 by the control device 75.

The amorphous sheet blanks A slackened in the loop L shape are stacked in five sheets, and the cutting device 1 is fed by the feeding roller 8 shown in FIG.
Sent to the side. The feeding roller 8 for feeding the amorphous sheet blank A has a driven roller 8a,
It is composed of a drive roller 8b having a rotary encoder 7 driven by an electric motor M ₁ .

The number of revolutions of the electric motor M ₁ (the number of revolutions of the amorphous sheet blank A and the number of revolutions corresponding to the number of revolutions) is controlled by a command signal from the controller 75. The cutting device 1 is composed of a movable cutter 1a and a fixed cutter 1b, and like the feed roller 8 of the amorphous sheet blank A, the cutting device 1 is also driven and controlled by a command signal from a control device 75. .

The delivery size (cutting length) of the amorphous sheet blank A delivered by the delivery roller 8 to the cutting device 1 is, for example, L in a wound iron core.
-2πt (n-1) is set (L is the length dimension of the longest sheet material plate C in one block, which will be described later, t is the thickness of the sheet material B in which 30 sheets are stacked, and n is from the inside of the wound core. The number of sheet blanks C to be wound). In addition, in the present embodiment, since the sheet blanks C are stacked in, for example, 5 layers to provide a wound sheet blank D, which will be described later, five amorphous sheet blanks are stacked based on the delivery size setting. A is cut 6 times with the same size (sheet material B) to obtain a wound iron core (n = 5) of 1
When the sheet blanks C for the stacked layers are formed and the sheet blanks C for the next and subsequent layers are formed, the length dimension L of the sheet blank C of the previous layer
Further, it is cut by sequentially shortening by a dimension of 2πt.

Then, a wound sheet body D for one block
In this example, the work of forming the sheet blank C is repeated five times to form the sheet. In this case, the length dimension of the sheet blank C to be formed first is the longest dimension of the rolled sheet blank D for one block. 5
The second sheet blank C is formed with the shortest dimension in the block. Then, when forming the wound sheet element D of the next layer, similarly to the previous layer, cut from the sheet element plate C having the longest length dimension located at the lowermost stage of the wound sheet element D, Hereinafter, the sheet base plates C sequentially positioned in the upper stage are always 2 from the length dimension L of the sheet base plate C in the previous stage.
The cutting is performed by shortening by πt, and the shortest sheet material plate C in the block is always mounted on the uppermost stage of one block.

In this case, starting from the length dimension of the longest sheet blank C in the rolled sheet blank D of each block required for winding the wound core, each sheet blank C in that block
Is programmed in advance in the control device 75, and the control device 75 outputs a command signal corresponding to the programmed length size to the electric motor M ₁ to drive and control it. Thus, the amorphous sheet base plate A is sequentially fed and cut by a predetermined preset length dimension for cutting.

The cut amorphous sheet blank A
The sheet material B of (5) is conveyed to the reversing device 11 via the conveying conveyors 9 and 10 in a state of being laminated. As shown in FIG. 2, the conveyors 9 and 10 are, for example, two endless belts linearly arranged on a carrier frame 910 installed in front of the cutting device 1 (on the left side of FIG. 2). 91,
92, via the motor M _2, M ₃ required number of guide rollers individually by constituted by stretched linearly movable, the electric motor M _2, M ₃ is held in the conveying underframe 910, In response to a command signal from the control device 75, for example, the cutting device 1 is driven in synchronization with the electric motor M ₁ of the feeding roller 8 except when the cutting device 1 is being driven.

Next, as shown in FIGS. 2 and 3, the reversing device 11 reverses the sheet material B sent from the conveyors 9 and 10 from the front side to the back side during the conveyance,
As shown in FIGS. 3 and 5, the sheet material B is configured to be fed to the loading / unloading devices 21a and 21b arranged in parallel with the reversing device 11. As shown in FIG. 2, the reversing device 11 is vertically formed at the end of the conveyor 10 via a supporting means (not shown), and its structure is roughly divided into FIG. A roller 12, a first reversing conveyor 13 that is vertically long and formed in a substantially U-shape, and a second reversing conveyor 14 that is disposed inside the first reversing conveyor 13.
And each of the first and second reversing conveyors 13 and 1
4 is a direction in which the sheet material B conveyed horizontally is once converted into a vertical direction and fed, while the sheet material B is converted into a horizontal direction (horizontal direction) in the direction of inverting the front side to the back side and conveyed. However, the sheet material B can be inverted and horizontally loaded on the first and second loading devices 21a and 21b described later.

As shown in FIG. 3, the distribution roller 12 has its base end drivingly connected to the conveyor 10 via a gear 12a, and its front end driven by a drive source such as hydraulic pressure, pneumatic pressure or electric power (not shown). It is configured to be connected to an operating cylinder 16 and to feed the sheet material B to the first and second reversing conveyors 13 and 14 by inclining the roller shaft 12b at the base end at a certain angle by the cylinder 16. ing.

As shown in FIG. 3, the first reversing conveyor 13 is formed by arranging a plurality of guide rollers R so that the endless belt B ₁ can be stretched in a U shape, and forms the center of the conveyor. The endless belt B ₁ overlaps a part of its longitudinally stretched portion to form a superposed portion 13a, and the sheet material B is sandwiched at this portion and fed in the longitudinal direction.

Further, as shown in FIG. 3, the second reversing conveyor 14 has a concave portion 1 which is an inner pocket of the first reversing conveyor 13.
5, the structure is a miniaturization of the first reversing conveyor 13, and only the portion for vertically stretching the endless belt B ₂ and feeding the sheet material B in the vertical direction. A plurality of guide rollers R ₁ are arranged so that the overlapping portions 14a can be formed by overlapping the sheets with each other, and the sheet material B is vertically held by the overlapping portion 14a of the endless belt B ₂ and fed.

As described above, the first reversing conveyor 13 and the second reversing conveyor 14 are formed by being divided into two stages in the vertical direction and individually driven by the electric motors M ₄ and M ₅ . Also, FIG.
Numerals 17 and 18 shown in FIG. 1 are brake cylinders that have driving sources such as hydraulic pressure and pneumatic pressure and are arranged at the feeding ends of the conveyors 13 and 14 for suppressing the feeding speed of the sheet material B. Is installed above the rollers R ₃ and R ₄ that rotate in mesh with the gears 13b and 14b provided on the guide rollers R and R ₁ on the delivery side of each of the reverse conveyors 13 and 14.
Pressing rollers R ₅ , R attached to the cylinders 17, 18
_The sheet material B flowing between ₆ and the rollers R ₃ and R ₄ interlocking with the rollers R and R ₁ via the gears 13b and 14b is the same as the rollers R ₃ and R ₄ and the rollers R ₅ and R ₆ . The sheet material B is operated until it passes through the space between the rollers R ₃ ,
The sheet material B cut by a required length dimension by pressing lightly by R ₄ and rollers R ₅ , R ₆ to suppress the conveyance speed of the sheet material B to the first and second loading devices 21a, 21b.
Is fed to the loading and unloading devices 21a and 21b provided on the transfer conveyors 9 and 10 together with the reversing device 11.

Further, K ₁ and K ₂ shown in FIG.
The first and second sensors for detecting the sheet material B, which are arranged in the vicinity of 7, 18, and these first and second sensors K ₁ ,
When the sheet material B is fed from the sending ends of the first and second reversing conveyors 13 and 14, K ₂ detects this and the sheet material B is placed on the loading devices 21a and 21b to some extent. Cylinder 1 by a command signal from controller 75 at this time
7 and 18 are driven to push the rollers R ₅ and R ₆ toward the sheet material B side, and the sheet material B being conveyed is lightly braked to suppress the conveying speed. ，
21b is mounted at a fixed position. When the sheet material B passes the sensors K ₁ and K ₂ , the first and second reversing conveyors 13 and 14 temporarily stop their driving. The cylinders 16, 17, 18 and the electric motors M ₄ , M ₅ provided in the reversing device 11 are constantly driven and controlled by the control device 75.

Next, the case where the sheet material B is loaded on the first and second loading devices 21a and 21b will be described. First, the reversing device 11 for reversing and feeding the sheet material B is
When the sheet material B is cut from the amorphous sheet base plate A, it is driven by a command signal from the control device 75. Then, when the cut sheet material B is transported to the position of the sorting roller 12 by the transport conveyor 10, the sorting roller 12
Is driven by a command signal from the control device 75. As shown by the solid line in FIG.
It is maintained in the horizontal state as well.

The sheet material B horizontally moves from the conveying conveyor 10 on the sorting roller 12 and enters the superposing section 13a of the endless belt B ₁ of the first reversing conveyor 13 as it is. When the conveyance direction of the sheet material B is changed to the vertical direction and the sheet material B moves upward in the first reversing conveyor 13 and the tip of the sheet material B reaches the top of the superposition section 13a, the sheet material B has its front surface side facing the back surface side. Horizontal direction to flip (rightward in Figure 3)
And is fed to the first loading / unloading device 21a corresponding to the first reversing conveyor 13.

The leading edge of the sheet material B is the first loading device 21.
When it is fed to a, the first sensor K ₁ detects it and sends a detection signal to the control device 75. When the control device 75 receives the detection signal, it outputs a command signal to the cylinder 17 and the sheet material B fed to the first loading device 21a side.
The rear end side is lightly clamped by the rollers R ₃ and R ₅ to suppress the delivery speed. Therefore, at the time when the sheet material B leaves the first reversing conveyor 13 (when the sheet material B passes through the sensor K ₁ ), the feeding speed of the sheet material B is considerably reduced, and as a result, the sheet material B is almost first loaded. The device 21a is mounted at a fixed position with the front surface side reversed to the back surface side.

As described above, when the sheet material B is sent from the first reversing conveyor 13 to the first loading / unloading device 21a, the detection by the sensor K ₁ is canceled, so that the command signal from the control device 75 is issued. As a result, the cylinder 17 returns to the original position, and the first reverse conveyor 13 is temporarily stopped. Subsequently, when the next sheet material B is conveyed from the conveyer conveyor 10 toward the distribution roller 12, the cylinder 16 is activated by a command signal from the control device 75, and the distribution roller 12 is moved around the roller shaft 12b as a fulcrum. The sheet material B is moved upward (inclined) to the position of the chain double-dashed line shown in FIG. As a result, the sheet material B is the second
Although the conveying direction is converted to the vertical direction in the superposing section 14a of the reversing conveyor 14 of FIG. 3, it immediately turns in the horizontal direction (rightward direction in FIG. 3) and reverses to the back side to correspond to the second reversing conveyor 14. It is fed to the second loading device 21b side. When the sheet material B starts to be fed to the side of the second loading device 21b, the second sensor K ₂ detects this and the cylinder 18 is driven, and the sheet material B is lightly nipped by the rollers R ₄ and R _6. Then, the brake is applied, the transportation speed is suppressed, and the second loading device 21b is fed to a fixed position.

As described above, the sheet material B cut and conveyed by the conveying conveyor 10 in a required length dimension is distributed to the first and second reversing conveyors 13 and 1 by the sorting roller 12.
4 are alternately entered, and each of them is reversed in the direction opposite to the direction in which the transfer is carried by the transfer conveyor 10, and each of the reverse conveyors 13 and 14
Is sent to the first and second loading devices 21a and 21b corresponding to

The sheet material B is obtained by cutting the amorphous sheet blank A with the same length dimension for six times in this embodiment.
When cut by, the sheet material B to be cut next has a length dimension L of the preceding sheet material B of 2πt (t is the sheet material B
(Thickness of the plate)
Similarly to the above, the sheets are fed and placed on the first and second loading devices 21a and 21b while being sequentially inverted by the inverting device 11.

Next, the construction of the first and second loading devices 21a and 21b for loading the sheet material B in the inverted state is shown in FIG.
5 will be described. The first and second loading devices 21a,
21b is above the conveyors 9 and 10, and as shown in FIG. 2, the first and second reversing conveyors 1 of the reversing device 11.
It is formed on the same line as the delivery ends of 3, 14 and in two steps vertically. First and second arranged in the upper and lower two stages
As shown in FIGS. 4 and 5, the loading devices 21a and 21b of FIG.
As shown in FIG. 4, each of the plurality of long rollers 22 (having a length sufficient to carry the sheet material B used when winding the outermost circumference of the winding iron core) 22 are provided. the gear 23 attached to the terminal, and a interlocking gear 24 to interlock the respective rollers 22 to each other and drivingly connected at between these gears 23, the roller 22, driving gear 23a and meshes with the gear 23 of the motor M _6, Rotate through 24.

The rollers 22 are rotated at a required rotational speed by the electric motor M ₆ via the gears 23 and 24, and the sheet material B fed from the reversing device 11 with its front side turned to the back side is fed. When the sheet is placed and the sensor K ₁ or K ₂ determines that the sheet material B is not present, the electric motor M ₆ is started by the command signal from the control device 75, and the sheet material B on the roller 22 is shown in FIG. As described above, the laminating apparatus 3 provided on the front side of FIG.
1 is transferred with the back side facing upward.
Further, when the leading ends of the sheet material B to be loaded next are detected by the first and second sensors K ₁ and K _{2 of} the loading devices 21a and 21b, the electric motor M ₆ sends a command from the control device 75. Stop at the signal and prepare for the next loading of the sheet material B.

As described above, the sheet material B is obtained by cutting a predetermined number of amorphous sheet blanks A (five in this example) with a predetermined length dimension a predetermined number of times (six times in this example). Then, the amorphous sheet blank A is sequentially cut with a length dimension obtained by subtracting the length dimension of 2πt from the length dimension of the sheet material B of the previous layer in sequence, and these are used as the sheet material B of the next layer and thereafter, and are conveyed by a conveyor. The inside of the reversing device 11 is fed from 9 and 10 and reversed, and these are sequentially sent out alternately to a pair of upper and lower first and second loading devices 21a and 21b,
Each of the sheet materials B is fed to the stacking device 31 in the next step with the width direction at the top while being inverted by the loading devices 21a and 21b driven at the time of loading.

Next, the construction of the laminating device 31 for laminating the sheet material B fed from the loading and unloading devices 21a and 21b at the time of winding the wound iron core will be described with reference to FIGS. The sheet material B, which is alternately fed from the loading devices 21a and 21b with one end in the width direction being the leading end, is alternately superposed on the front and back surfaces thereof to form a sheet blank C for one stack. The stacking device 31 includes the loading devices 21a, 21.
On the front side of b (the lower side in FIG. 4 and the left side in FIG. 5), when installed on the carrier frame 910 and roughly classified, it is linked to the loading device 21a on the upper side so as to cooperate with the hook. Inversion return conveyor 32 arranged in a shape, a plate-shaped conveyor conveyor 33 arranged so as to be able to cooperate with lower loading device 21b, first and second stacking / aligning devices 34 for stacking sheet materials B,
35 and a pair of first aligning devices 36, 361 for aligning the end face of the sheet material B in the width direction from both sides thereof.

As shown in FIG. 7, the reversing and returning conveyor 32 has the entrance X side on the loading device 21 on the upper side.
The sheet material B is installed at a position at the same height as a by a supporting means (not shown). A plurality of guide rollers R ₇ are attached to stretch the endless belt B ₃ in a hook shape so as to reverse the back side to the front side during feeding. Further, it is connected to the loading device 21a on the upper side so as to be able to cooperate with each other via a gear 32b.

Subsequently, in the conveyer 33 arranged horizontally by a mounting means (not shown), the entrance X ₁ side is drivingly connected to the lower loading device 21b through the gear 33b, and the exit O ₁ side is Maintain a predetermined distance (an interval equal to or larger than the width dimension of the sheet material B) from the outlet O of the reverse return conveyor 32,
Further, the endless belt B ₄ is stretched around the guide roller R ₈ so as to be positioned on the same line. And, in order to smoothly slide down the sheet material B, the upper part of the outlets O and O _{1 of the} reversing return conveyor 32 and the conveying conveyor 33 is slanted upward from the outlets O and O ₁ of the respective conveyors 32 and 33. As shown in FIGS. 4, 6 and 7 along the length direction of the carrier frame 910 while tilting downward,
A plurality of guide plates 37, 37a are planted on the respective conveyors 32, 33 so as to face each other with a constant interval.

Next, the first and second stacking / aligning devices 34,
As shown in FIGS. 4 and 7, 35 is a cylinder that is horizontally mounted in a mounting frame body 38 (see FIG. 7) mounted at an end portion orthogonal to the longitudinal direction of the carrier frame 910 while being divided into two upper and lower stages. Three
9a, 39b and the drive parts (pistons) of these cylinders 39a, 39b are fixed at their base ends, and the tip parts are fixed to the guide plate 3
It is constituted by first and second alignment gutters 40a and 40b which extend across the gaps 7 and 37a to a position parallel to the upper end of the guide plate 37a on the transport conveyor 33 side. Then, as shown in FIG. 6, the first and second alignment gutters 40a and 40b are provided between the guide plates 37, 37, 37a and 37a in a predetermined number (interval capable of receiving the sheet material B horizontally). It is arranged. In addition, the alignment gutters 40a and 40b
As shown in FIG. 7, is formed so as to be inclined so that the base end side has a constant height as compared with the horizontal front end side.

Further, the first alignment devices 36 and 361 are shown in FIG.
, A cylinder 36a attached to the upper end of the attachment frame 38 corresponding to the outlet O side of the reverse return conveyor 32,
A cylinder 36b that is attached to the lower side of the outlet O ₁ side of the transfer conveyor 33 via a support base 36c so as to face the cylinder 36a, and alignment plates 41 and 41a that are attached to the tips of the drive pistons of the cylinders 36a and 36b. And the guide plates 37, 37 and 37a, 37
It is arranged between a and at a position where it does not collide with the alignment gutters 40a and 40b. In addition, the first alignment devices 36, 361, the first,
The second stacking / aligning devices 34 and 35, the reverse return conveyor 32, and the transfer conveyor 33 are individually driven and controlled by a command signal from the control device 75.

Reference numeral 42 shown in FIGS. 6 and 8 is a second aligning device, and this aligning device 42 aligns the end faces in the longitudinal direction of the sheet blanks C stacked on the second stacking / aligning device 35. As shown in FIG. 6, the first stacking / aligning device 34
A long cylinder 43 which is horizontally arranged upward and is adjustable in forward and backward positions, an aligning piece 43a which is attached to a driving portion 43b of the cylinder 43 and aligns one of the longitudinal directions of the sheet material plate C, and the sheet element. The second aligning device 42 is composed of an aligning plate 44a vertically provided at the piston tip of a cylinder 44 vertically provided on the other side of the plate C in the longitudinal direction (left side in FIG. 6). Second stacking / aligning device 3
The drive is controlled by the control device 75 as in the case of Nos. 4 and 35.

Next, the laminating device 31 is used to load the loading device 2
A case will be described in which the sheet materials B fed from 1a and 21b are overlapped six times to stack the sheet base plates C. First and second stacking / aligning device 3 constituting the stacking device 31
4, 35, the first aligning device 36, 361, and the second aligning device 42 are drive-controlled by the controller 75 as described above. Then, when the sheet material B is transferred from the loading devices 21a and 21b, the reversing return conveyor 32 and the transfer conveyor 33 of the laminating device 31 move to the gear 32.
Since it is drivingly coupled to the loading devices 21a and 21b via the b and 33b, as shown in FIG. 7, the sheet material B fed in the loading device 21a on the upper side is being driven as it is. From the entrance X side of the return conveyor 32, the sheet material B is sandwiched by the overlapping portion 32a of the endless belt B ₃ and conveyed to the conveyor 32. Although the sheet material B is held in the inverted state at the time of being transferred from the loading device 21a, Since the conveyor 32 is formed in a hook shape, when it is led out from the outlet O side of the conveyor 32, it is inverted and led out again from the back surface side to the front surface side.

The sheet material B drawn from the reversing and returning conveyor 32 is turned over to the front side, and the guide plate 3
The slanted surface 7 is slid down and mounted on the first alignment gutter 40a. When the sheet material B is discharged from the reverse return conveyor 32, the sensor K _{1 of the} conveyor 32 is
Since the loading device 21a is being driven unless the presence of is detected, the driving is continued. Then, when the sensor K ₁ detects the sheet material B in order to load the next sheet material B on the loading device 21a, the reversal return conveyor 32 stops driving at the same time as stopping the loading device 21a. In this case, a sensor (not shown) is installed on the outlet O side of the reversing return conveyor 32 to detect that the sheet material B is discharged from the conveyor 32 and stop the operation of the loading device 21a and the reversing return conveyor 32. You may do it. The first
The sheet material B placed on the alignment gutter 40a of FIG. 1 pushes the alignment plate 41 by the cylinder 36a of the first alignment device 36,
The widthwise end surface of the sheet material B is pressed against the guide plate 37a on the cylinder 36b side to align the sheet material B.

[0063] Subsequently, the sheet material B transferred from the lower side of the nono device 21b, as shown in FIG. 7, the polymerization unit of still endless belt B ₄ is inverted conveyor 33 formed in a plate shape 33a, and the loading device 21b
It is dropped on the inclined surface of the guide plate 37a in the state of being mounted on the sheet, and is stacked as it is on the sheet material B led out from the reverse return conveyor 32 in the first alignment gutter 40a. That is, the sheet material B conveyed from the reversing and returning conveyor 32 is reversed during conveyance and is placed on the alignment gutter 40a with its surface facing upward, and conversely, on the conveying conveyor 3
The sheet material B conveyed from No. 3 is stacked on the sheet material B already placed on the alignment gutter 40a in a state of being reversed (back surface state).

As described above, when the sheet material B slides down from the transport conveyor 33 onto the first alignment gutter 40a, the transport conveyor 33 and the lower loading device 21b temporarily stop.
After that, the cylinder 36b of the first aligning device 361 pushes the aligning plate 41a toward the cylinder 36a, and the sheet material B on the first aligning gutter 40a is pressed against the guide plate 37 so that the end face in the width direction thereof is pressed. Align.

When the sheet material B is not stacked in a predetermined number (4 layers in this example), the above steps are repeated a predetermined number of times, and the sheet is placed on the first alignment gutter 40a as shown in FIG. By stacking four layers of the sheet material B with the front surface and the back surface of the material B alternately, the first alignment gutter 40a
Moves backward in the cylinder 39a (moves as shown by the chain double-dashed line on the left side of FIG. 7 to open the first alignment gutter 40a), and 4
The sheet material B for one layer is dropped and placed on the second alignment gutter 40b immediately below. After that, the cylinder 36a of the first aligning device 36 is activated, the aligning plate 41 is pushed toward the cylinder 36b side, the sheet material B is pressed against the guide plate 37a, and the widthwise end faces are aligned. Subsequently, the above process is repeated (in this example, the process is repeated once more), and the sheet material B is dropped from the reverse return conveyor 32 to the second alignment gutter 40b with the front side facing upward and the conveyance conveyor 33 in the back side state. The second stacking / aligning device 3
As shown in FIG. 22, the sheet material B is alternately superposed and laminated on the second alignment gutter 40b of No. 5 to make the sheet thickness of the end face in the width direction uniform. A sheet blank C in which 6 layers of the material B are laminated is formed.

When the sheet material B is laminated in the above-mentioned 6 layers (in the case of this example, but not limited to this), the first layer is formed.
As shown by the solid line in FIG. 7, the alignment gutter 40a of the cylinder 3
6b is projected (the first alignment gutter 40a is closed). Then, again using the cylinder 36a to move the alignment plate 41 to the cylinder 3
6b side, the sheet blank C on the second alignment gutter 40b
The end face in the width direction of is pressed against the guide plate 37a to be aligned.

After aligning the end faces in the width direction of the sheet blank C, the second aligning device 42 is driven, and as shown in FIG. 8, a cylinder located on one side of the sheet blank C (left side in FIG. 8). The piston 44 is lowered so that the alignment plate 44a faces the end face in the longitudinal direction of the sheet blank C, and then the second plate
Starting the other cylinder 43 of the aligning means 42 of
The aligning piece 43a attached to the drive unit 43b is moved leftward in FIG. 8 so as to come into contact with the other end surface (the right side in FIG. 8) of the sheet base plate C, and the end face in the longitudinal direction of the sheet base plate C is moved. The stacking of the sheet blanks C is completed by aligning the alignment strips 43a and the alignment strips 44a. After stacking the sheet blanks C, the cylinders 43 and 44 once return to their original positions.

When aligning the sheet blank C in the longitudinal direction, the second alignment trough 40b is partially tapered as shown in FIG. As a result of being mounted on the second alignment gutter 40b in a curved state, the mechanical strength is increased due to the presence of the curved portion, so that even if a force is applied from the longitudinal direction, it can bend in the longitudinal direction. You can do the alignment work without. Also, when the sheet material B is aligned in the width direction by the first alignment gutter 40a, the first alignment gutter 40a is formed so that a part thereof is inclined, so that the sheet material B moves in the width direction. Therefore, the alignment work can be facilitated smoothly.

Subsequently, the sheet material C formed by laminating 6 layers of the sheet material B in the step of laminating the sheet material B is stacked in a required number of layers to wind a wound iron core. An embodiment of the stacking process of the sheet blank C and the stacking apparatus will be described with reference to FIGS. 9 to 19. First, the sheet material B is laminated in the required layers (6 layers in this example) in the laminating step to form the sheet blank C, and then the sheet blank C is pulled out from the second alignment gutter 40b and is stepped. The configuration of the sheet element stacking device (stacking device) 45 to be stacked on the above will be described.

The sheet element stacking device 45 includes a holding (chucking) device 46 for holding the sheet base plates C stacked by the stacking device 31 and a sheet base plate C pulled out from the stacking device 31 to the conveyor device 61. In the case of transporting and stacking the transported sheet blanks C to form a wound sheet blank for one block (in this example, indicating a stack of five sheet blanks C) D, for example, , The sheet blank C having the longest length in the block is set as the lowermost stage, and
A wound sheet element body for one winding by stacking sheet element sheets C, which are sequentially shortened by 2πt (t is the sheet thickness of the sheet element sheet C) from the length dimension L of the sheet element sheet of the previous layer, in a stepwise manner. A transporting / laminating device 47 for forming D, an aligning device 48 (see FIGS. 14 and 15) for aligning the side faces (widthwise end faces) of the sheet blank C placed on the conveyor device 61, and further, Pressing devices 51, 5 for pressing and holding the sheet blanks C aligned on the conveyor device 61 until the next sheet blanks C are stacked.
1a (see FIGS. 14 and 16).

First, the structure of the holding device 46 will be described. In FIG. 9, the sandwiching device 46 is the conveying / laminating device 4
7, a pair of sandwiching pieces a and b which are vertically held on the movable base 49 and which sandwiches the longitudinal end of the sheet blank C is provided at the front end, and the rear end is provided with the sandwiching pieces a and b. Cylinder 5 to open and close
0 is attached and, for example, when the piston of the cylinder 50 is moved back and forth, a roller (not shown) provided at the base of the holding pieces a and b is rotated left and right to open and close the holding pieces a and b. , The tension pieces 50 are always attached to the sandwiching pieces a and b.
It is held in the closed state as shown in FIG. 9 by the pulling force of a (see FIG. 10). Further, the holding device 46 is mounted so that it can be moved up and down with a predetermined size by a cylinder 50b installed on a movable table 49.

Next, referring to FIG.
A conveying / stacking device 47 that stacks a predetermined number of stacks of sheet blanks C on the conveyor device 61 by moving the sheet blanks C by a certain distance in the left-right direction is in front of the cylinder 44 (on the left side of FIG. 9) by a supporting device or the like (not shown). ) Attached to the cylinder) and a drive device such as a linear motor or the like (hereinafter, cylinder 47).
a) 47a and a drive unit 47 of this cylinder 47a.
It comprises a movable base 49 equipped with the holding device 46 attached to b.

The arrangement of the aligning device 48 will be described next. 6, 7 and 14-16, the carrier frame 9
Guide members 52, 52a formed by arranging U-shaped iron aggregates in a rail shape up to the winding device 65 shown in FIG. A plurality of cylinders 52, 52a are arranged on the guide member 52 shown on the left side of FIG. The alignment means 53 shown in FIG. 14 is provided with an alignment plate 53b that moves forward and backward on the side of the other guide member 52a.

As shown in FIG. 15, the alignment plate 53b is a fixed plate 5 fixed to the piston of the cylinder 53a.
3c is formed so as to buffer-press the end surface of the sheet blank C through a buffer spring 53d inserted between the guide member 52 and 52a and the guide plates 37 and 3 shown in FIG.
Regarding the relationship with 7a, the guide plates 37, 37a are
The base portions are fitted into the notches (not shown) provided on the surfaces of 2, 52a which face each other, and the guide plates 37, 37a and the guide members 52, 52a have the same flat surface as shown in FIGS. It is formed so that. Therefore, the vertically long sheet blank C has one side surface (the left end surface in FIG. 14) of the aligning plate 53.
When pressed by b, the other side surface of the sheet blank C is pressed toward the guide member 52a, and its end face is aligned flat by the guide plate 37a and the guide member 52a, as shown in FIG.

Next, the structure of the pressing devices 51 and 51a will be described. The pressing devices 51 and 51a are conveyor devices 6
After aligning the sheet blank C drawn on 1 with the aligning device 48, until the sheet blank C of the next layer is pulled out and mounted on the sheet blank C of the previous layer, the sheet blank Board C
6 is pressed and held on the conveyor device 61 so that it cannot be swung.
As shown by 14 and 16, a plurality of cylinders 54 (two in each of the guide members 52 and 52a in the present example) are arranged in a range in which the shortest sheet blank C can be pressed onto the upper surfaces of the guide members 52 and 52a, It is attached to the lower end of the piston of the cylinder 54 and projects onto the sheet blank C from a window hole 55 (see FIGS. 12 and 13) provided by opening the surface of the guide members 52, 52a corresponding to the sheet blank C. And a pressing piece 56 that presses the upper side surface of the sheet blank C satisfactorily.

The sandwiching device 46, the conveying / laminating device 47, the aligning device 48, and the pressing device 51, which compose the sheet element stacking device 45, are driven and controlled by a controller 75 in accordance with a predetermined sequence. When the sheet base plates C are stacked to form the wound sheet base body D for one block, the sheet material B is stacked in the second stacking / aligning device 35 of the stacking device 31 by 6 layers in this example. Then, when the sheet blank C is formed, the holding device 46 moves from the position indicated by the solid line in FIG.
Cylinder 47 up to the position (lamination device 31) indicated by the dashed line
When moved by a, the clamping pieces a and b are expanded by the cylinder 50 against the force of the tension spring 50a. When the holding device 46 further moves to the position for holding the sheet blank C shown in FIG. 10, the holding device 46 stops and the tip of the sheet blank C in the longitudinal direction is fitted between the holding pieces a and b.

In this state, the sandwiching pieces a and b are attached to the cylinder 50.
When the sheet blank C is clamped by the above, the cylinder 39b of the second stacking / aligning device 35 of the stacking device 31 retracts the second alignment gutter 40b to the left as shown by the chain double-dashed line in FIG. Then, when the second alignment gutter 40b is opened, the sheet blank C descends onto the conveyor device 61 except for the holding portion by the holding device 46, as shown in FIG. When the sheet blank C descends, the second stacking / aligning device 35
When the cylinder 39b is activated, the alignment gutter 40b is returned to the original position as shown by a solid line in FIG.
Prepare for loading.

When the sheet blank C is sandwiched by the sandwiching device 46, the sandwiching device 46 is moved by the cylinder 47a of the conveying / laminating device 47 in the leftward direction in FIG.
(Side), the sheet material plate C is dragged and moved by a distance set in advance. Then, as shown in FIG. 12, the holding device 46 stops when it moves to a fixed position.

When the holding device 46 moves to the fixed position shown in FIG. 12, the cylinder 50b is started to hold the holding device 46.
12 from the position of the second alignment gutter 40b shown in FIG.
The guide member 52a shown in FIG. Subsequently, the cylinders 54, 54 of the pressing devices 51, 51a are activated to lower the tips of the pressing pieces 56, 56 protruding outward from the window holes 55 of the guide members 52, 52a shown in FIG.
The upper end face in the width direction of the sheet blank C is pressed on the conveyor device 61.

When the sheet blank C is pressed, the sandwiching pieces a and b are opened by the cylinder 50 to release the sandwiching of the sheet blank C, and the sandwiching portion of the sheet blank C is conveyed by the conveyor device 61 as shown in FIG. Get on top. After this, cylinder 5
Release the pressing of the sheet base plate C by 4, 54, then,
One side end surface of the sheet base plate C (left side in FIG. 14) via the fixed plate 53c and the buffer spring 53d by the cylinder 53a.
Is pushed to the guide member 52a and the guide plate 37a by the aligning plate 53b to align the side surfaces of the sheet blank C.

As described above, when the work of aligning the longest sheet material plate C in the block located at the lowermost stage in the rolled sheet material body D for one block is completed, the cylinders 54, 54 are activated again, and FIG. , 16, the side edges of the sheet blank C are pressed from above by the pressing pieces 56, 56. While the sheet blank C is pressed on the conveyor device 61, the holding device 46 returns to the original position shown by the solid line in FIG. 9 by the cylinder 50b.

When the sheet blank C is pulled out to the conveyor device 61, until the next sheet blank C is mounted,
When the sheet blank C of the front layer is pressed and held by the pressing pieces 56, 56, and the sheet blank C of the next layer is pulled out onto the sheet blank C of the front layer by the holding device 46 and mounted, the cylinder 54,
54 pushes up the pressing pieces 56, 56 to move the conveyor device 6
Release the pressure of the sheet material plate C of the previous layer that was first loaded on 1.
The cylinders 54, 54 are started again and the sheet blank C is pressed by the pressing pieces 56, 56 for the two layers of the front layer and the next layer to conveyer device 61
Press on. After pressing the sheet blank C for two layers,
Sheet blank C of the next layer by the sandwiching pieces a and b of the sandwiching device 46
Then, the sandwiched portion is unloaded, and the sandwiched portion is placed on the conveyor device 61. Subsequently, the cylinder 54, 54 presses the pressing piece 56,
By moving 56 upward, the pressing of the sheet blank C is temporarily released.

The sheet blanks C, which are stacked on each other on the conveyer device 61 and have a step portion for two layers, are aligned by releasing the fixing by the clamping and pressing devices 46, 51 and 51a. 53 operates to align the side surfaces of the sheet blank C, and when that is completed, the pressing devices 51 and 51a re-operate, and the sheet blank C on the conveyor device 61 is laminated with the next sheet blank C. It is held by pressing until it is turned on.

As described above, each time a set of five sheet materials B is stacked by the stacking device 31, the end faces in the width direction are misplaced a predetermined number of times (six times in this example), and The sheet base plates C provided with a uniform stacking thickness of the stacking end faces are sequentially drawn out from the second stacking / aligning device 35 of the stacking device 31 by the sheet base body stacking device 45, as shown in FIG.
As shown in (1), one sheet (in this example, five sheet sheet plates C are stacked) is formed by stacking sheets having long lengths in a stepwise manner in order from the bottom to form a wound sheet sheet body D. Form.
As described above, the rolled sheet element body D for one block is formed from the sheet element sheet C having the longest length dimension in the block to the amorphous sheet element sheet A by L-2πt.
(N-1) Send and form.

As described above, in the case of stacking the wound sheet bodies D for one block in a stacked manner, normally, the interval dimension (overlap) in each step portion of the sheet blank C of each layer constituting the rolled sheet body D is stacked. The generation T) is uniform. However, if the distance between the step portions of each of the stacked layer sheet blanks C is uniform, the wound core may be displaced or slipped due to friction during winding, or the core may be wound to adjust its shape. For example, as shown in FIG. 24, the joint portion of the sheet base plates C of the layers forming the sheet base body D may protrude from a preset range of the in-window dimension XY of the wound core.

In order to suppress the protrusion of the joint portion of the sheet base plate C, the overlap margin of the sheet base plates C located in the innermost layer and the outermost layer of the wound sheet base body D in one block is changed, It is possible to easily eliminate the protrusion of the joint. According to the present invention, in the case of stacking five layers of the sheet base plates C having the laminated thickness of the end faces in the width direction based on the above to stack one layer of the wound sheet base bodies D, for example, The stacking method described below is adopted.

Rolled sheet body D of each layer constituting the wound core
For example, the sheet blanks C are stacked as shown in FIG. That is, in the rolled sheet element D for one block, the sheet element C of each layer has a length dimension of 2πt in the length dimension of the sheet element sheet of the previous layer.
In addition, a sheet material plate C of a wound sheet element body D which constitutes one block is formed, and the wound sheet material of each block is stacked by stacking the sheet material plates C in accordance with a preset interval dimension of each step portion. The element body D is formed.

The case of this example will be described below.
In this example, five sheet base plates C are prepared, and in stacking, the longest sheet base plate C in the layer is first placed in the lowermost layer as described in forming the wound sheet base body D. The sheet base plates C each having a length reduced by 2πt are sequentially stacked and stacked (stacked) to form a wound sheet base body D for one layer.

In stacking the sheet blanks C, as shown in FIG. 19, the uppermost (fifth layer) sheet blank C ₅ and the next (fourth layer) sheet blank C ₅ are stacked. Assuming that the interval dimension of the step portion of the plate C ₄ is T, the fourth sheet material plates C ₄ and 3
The distance dimension from the sheet material plate C ₃ of the layer is T-1. Similarly, the third and second layers are T-2, and the second and first layers are T-3. According to the above, the sheet blanks C _{1 to} C ₅ are stacked step by step according to the preset dimension of the step portion.

Then, the interval dimension in each step of each sheet blank is programmed in the controller 75 in advance. As a result, the movable range of the sheet element stacking device 45 that pulls out the sheet blank C from the stacking device 31 by the sandwiching device 46 and places it on the conveyor device 61 is set.
As a result, when stacking the individual sheet blanks C, as described above, the interval dimension of each step is set in advance, so that the wound sheet blank D is formed as shown in FIG. To
It is possible to easily stack the steps with different intervals.

As described above, in the present invention, when the sheet base plates C are stacked in the required number of steps to form the sheet base body D, the sandwiching device 46 is preset by the sheet base body stacking device 45. By moving within the dimension range, as shown in FIGS. 17 and 19, the sheet base plates C _{1 to} C ₅
It is possible to easily stack by changing the interval size of each step. The wound sheet bodies D of the respective blocks constituting the wound cores of the next and subsequent layers are also stacked and formed in the same manner as described above.

In addition, the wound sheet element body is arranged so that the wound sheet core goes from the block forming the innermost layer of the wound iron core to the block of the outermost layer,
The interval length in the stepped portion of the sheet base plate of each block is not unified as described above, and the optimum length dimension is set for each block, whereby the sheet base plates are stacked one block at a step. Of course, the wound sheet bodies may be stacked and formed.

Next, the structures of the conveyor device 61 for conveying the wound sheet elements D formed by stacking as described above and the winding device 65 for winding the wound sheet elements D will be described. . As shown in FIGS. 2, 9 and 17, the conveyor device 61 is a belt conveyor 6 formed by extending to the winding device 65 along the lengthwise direction in the central portion of the carrier frame 910.
2, pressing means 63 that presses the wound sheet element D moving toward the winding device 65 on the belt conveyor 62 by its own weight, and presses and urges the wound sheet element D with a constant pressing force. Meanwhile, it is configured by a sheet element feeding unit 64 that feeds it to the winding device 65.

The belt conveyor 62 of the conveyor device 61 is formed so that an endless belt is stretched between rollers so that it can be driven by an electric motor M ₈ , and the pressing means 63 is as shown in FIG. The upper roller R ₁₀ is formed so as to be vertically movable by using the guide frame 63a so that the wound sheet body D can be easily sandwiched between the pair of rollers R ₉ and R _10. Sheet body D is rollers R ₉ , R ₁₀
When it comes in between, the upper roller R ₁₀ is guided by the guide frame 63a.
Is moved upward along the guide groove 63b, and the wound sheet body D is pressed by the weight of the roller R ₁₀ . In addition, the rollers R ₉ , R
Reference numeral ₁₀ is coupled by a coupling means (not shown) so as to be rotatable in cooperation therewith.

Further, as shown in FIG. 2, the sheet body feeding means 64 includes a cylinder 64a for urging the wound sheet body D with an appropriate pressing force, and a feed roller 64 rotated by an electric motor M ₇ .
b, and when the wound sheet body D enters between the roller R ₁₁ provided on the cylinder 64a and the feed roller 64b, this is detected by, for example, a sensor (not shown), and a command signal from the control device 75 is detected. The cylinder 64a is activated, the roller R ₁₁ is lowered and pressed against the feed roller 64b with a required pressing force, and at the same time, the electric motor M ₇ is activated in synchronization with the belt conveyor 62, and the wound sheet body D Is pressed by a pressing force not to swing and is fed to the winding device 65.
When the wound sheet element D is wound around the winding device 65 and a sensor (not shown) detects that there is no wound sheet element D on the conveyor device 61, the conveyor device 61 determines the next wound sheet element D. In order to prepare for the stacking, the process is temporarily stopped.

A winding device 65 for the wound sheet body D
When the sheet is fed to the
Thus, every time one block is stacked and stacked, that is, for example, the number of times the cutting device 1 cuts the amorphous sheet base plate A required to form the wound sheet base body D for one block.
When it is operated the number of times of cutting, the control device 75 sends a command signal to the electric motor M ₈ of the conveyor device 61 to drive the conveyor device 61. Therefore, in this example, the cutting device 1 cuts the five amorphous sheet base plates A at a time to form the sheet material B. As shown in FIG. 22, one set of five sheets of the sheet material B is alternately laminated on the front surface (three times) and the back surface (twice) to be laminated into six layers to form one sheet.
One sheet blank C is formed. As a result, as shown in FIG. 22, the sheet blank C can favorably eliminate the thickness deviation of the end face in the width direction.

When the wound iron core is wound using the sheet base plate C, four layers of the sheet base plate C are further stacked stepwise to form a rolled sheet base body D for one block. Is formed. Further, the control device 75 operates the cutting device 1 six times to form the sheet blank C for one stack, and further multiplies this by five times to operate the cutting device 1 30 times in total, A sequence in which the conveyor device 61 is driven for the first time to convey the wound sheet body D to the winding device 65 is incorporated. While the wound sheet body D is being conveyed, the cutting device 1 continues the work of cutting the amorphous sheet base plate A to cut the sheet material B for one winding iron core, and using this, the sheet base plates C, The wound sheet element D is formed to wind the wound iron core, or cutting is interrupted while the conveyor device 61 is being driven, and when one block of the wound sheet element D is wound,
Whether to drive the cutting device 1 again to form the wound sheet body D may be determined as necessary.

Next, the winding device 65 will be described. As shown in FIG. 18, the winding device 65 encloses and holds the winding shaft 67 on which the winding frame 66 is detachably fixed, and the outer circumference of the winding sheet body D wound on the winding frame 66. The winding belt 68 that is attached to rotate the winding belt 6 and the winding belt 6
8, a plurality of guide rollers 69 arranged for rotatably stretching, and an electric motor M drivingly connected to one of the guide rollers 69 and rotating the winding belt 68.
₉ and a cylinder 70 for applying a constant tension to the winding belt 68.

The wound sheet body D is fed to the winding device 65 side by the conveyor device 61, and as shown in FIGS. 18 and 20, the front end of the wound sheet body D is the sheet body feeding means 64.
When the winding position G of the winding device 65 is reached, a sensor (not shown) detects this and activates the electric motor M ₉ to rotate the winding belt 68 to move the leading end of the winding sheet body D. The winding frame 66 or the winding sheet body D already wound on the winding frame 66 and the winding roller 71 are made to slip into the winding frame 66, and the winding belt 68 is attached to the outer peripheral surface of the winding frame 66 or the like. The wound sheet body D is sequentially wound into a circular shape while being pressed.

When winding the wound sheet body D,
When stacking the sheet blanks C, for example, as shown in FIG. 19, the interval dimension of each step in each layer sheet blanks C _{1 to} C ₅ is the length dimension of the sheet blanks C _{1 to} C _5. because you have wide as becomes successively shorter, when the sheet body D wound Towaku 66 wound take, as shown in Figure 23, the sheet material plate C ₁
Each of the joints 90 to C ₅ can be located within the window size XY of the wound core 80. This is because the distance between each step of each sheet blank is made longer toward the sheet blank whose length in each block is shortened.

Therefore, the winding of the rolled sheet blank D is as shown in FIG.
As shown by 7, 19, and 20, the shortest sheet blank C ₅ in the block is first the winding frame 6 of the winding device 65.
Because of the contact with 6 and the winding, the joining portion 90 of the sheet material plate C _{5 in} which the interval dimension of the stepped portion becomes maximum at the time of this winding,
If it is within the window dimension XY of the wound core as it is, since the interval dimension of each step portion of the sheet blanks C _{4 to} C ₁ to be wound around the block thereafter is sequentially shortened, the sheet blank C ₄
Even if a deviation occurs due to slippage or the like during the winding of the wound sheet body D, each of the joint portions 90 to C ₁ can be favorably arranged within the window inner dimension XY.

As described above, when the distance between the steps of the sheet blanks C _{1 to} C ₅ is set in advance, the range (dimension) of each of the joints 90 is set within the window dimension XY. Test to see if it goes in or out, and based on this test result, set all the gap sizes in each step of the sheet blank C of each block that constitutes the winding core, and set these. In the present invention, the dimensions are programmed in the controller 75 to drive and control the movable range of the sheet element stacking device 45. Therefore, as described above, the wound sheet element D of each layer is sequentially wound. when winding by the rotating device 65, as shown in FIG. 23, the sheet workpiece C ₁ ~
The wound core can be wound in a state where all the joints 90 of C ₅ are well within the window dimension XY of the wound core and the number of layers of the sheet material plate to be wound is increased.

After winding a predetermined number of wound sheet bodies D, the wound sheet body D is removed from the winding frame 66, and the iron core 80a wound in a circle is formed into a rectangular shape by using a rectangular forming jig (not shown). The one-turn cut type winding core 80 shown in FIG. 21 is formed. In the laminated cross section of the wound iron core 80 wound in this way, for example, as shown in FIG. 22, the laminated thickness dimensions on the left and right sides are such that the sheet material B is layered by one layer and the front surface and the back surface are alternately stacked. Since they are laminated together, it is possible to satisfactorily eliminate the plate thickness deviation in the width direction and to wind the wound iron core 80 with the same size, and moreover, the joint portion 90 of the wound sheet body D of each block 90. Can be easily arranged in a predetermined window size X-Y.

[0104]

According to the invention described in claim 1 of the present invention, a sheet material obtained by polymerizing a plurality of amorphous sheet blanks and sequentially cutting the amorphous sheet blanks with a predetermined length dimension is used, with its front surface and back surface being The sheets are alternately superposed and required layers are laminated by the laminating means to continuously form one sheet of sheet blank, and the sheet blank is sandwiched by the sandwiching means and pulled out from the laminating means every time one stack of the sheet blank is laminated. Since the rolled sheet element for one block is formed by sequentially stacking a predetermined number of steps in a stepwise manner, the rolled sheet element has a sheet material at the time of forming the sheet element plate, and the surface side thereof is surface-to-surface. Since the back side is alternately superposed between the back sides, the plate thickness deviation in the width direction becomes uniform, and the adverse effects due to the plate thickness deviation can be reliably eliminated, and the space factor of the wound core can be improved satisfactorily. be able to.

Further, when stacking sheet blanks in a required layer in a stepwise manner, the linear movement range of the sandwiching means for sandwiching the sheet blanks is varied, and the interval dimension of each step (sheet blanks) is changed. Since the wound sheet element body is formed so that the length of the sheet sheet overlaps with that of the sheet material, that is, the distance between the stepped portions is the distance between the sheet material plates of a plurality of layers in advance. It is set in advance by a test to determine if the joints of the wound sheet elements will stick out from the window inside dimensions of the wound core if stacked. It is possible to increase the number of stacked sheet blanks in, and as a result, the winding work of the wound core can be performed quickly and efficiently.

In the invention according to claim 2 of the present invention, the interval dimension of each step portion in the sheet base plate of the required layer constituting the wound sheet base body is the same as that of the wound sheet base body forming one block. Since it is set so as to become shorter sequentially from the innermost sheet raw sheet to the outermost sheet raw sheet, by winding the joint portion of the innermost sheet raw sheet in each block at a position within the window Since the distance between the sheet base plates located in the outermost layer of each block is considerably smaller than that in the innermost layer of each block, the joint part of the sheet base plates in this layer protrudes from the window inner size of the wound core. It is possible to satisfactorily prevent such a situation and increase the number of sheet base plates in one block, which makes it possible to quickly and easily manufacture a wound core using an iron core material made of an amorphous sheet base plate. Can .

According to the third aspect of the present invention, each block of the wound core constituted by the wound sheet body extends from the block located at the innermost layer to the block forming the outermost layer of the wound core. Since the interval dimension in the stepped portion of each sheet raw plate that constitutes each block is set to the optimum length for each block, the number of laminated sheet raw plates in each block is located on the outer layer side of the winding core. It is possible to wind more blocks as compared with the blocks wound on the inner layer side, whereby the number of laminated sheet base plates per block is set to be more multilayer for blocks located on the outer layer side, and the wound core is The number of blocks formed by stacking the constituent sheet blanks can be reduced, and the winding work of the wound core can be effectively performed.

In the invention according to claim 4 of the present invention, each block of the wound core formed by the wound sheet body is a sheet base plate forming one block, and the longest one is the sheet base plate. In the lower stage, the sheet material plate of a predetermined layer whose length dimension is shortened sequentially is stepwise, and
Since the wound sheet element for one block is formed by sequentially increasing the interval dimension of each step from the lowermost step to the upper step, the wound sheet element forming each block is a sheet material plate. Stable stacking work, and 1
By winding the winding start end of the shortest sheet raw plate in the block from the winding start position of the window core size of the winding core, the interval dimension of the other sheet raw plates of the block is set to be gradually reduced. Since the joint portion of the sheet base plates can be favorably arranged within the window inside dimension and the side edges in the width direction can be aligned, the winding of the sheet body of each block can be performed. The winding work is smooth, the plate thickness of the laminated end surface of the winding core itself is uniform, and the problem of the amorphous sheet blank protruding from the laminated end surface is reliably solved. Winding is possible.

In the invention according to claim 5 of the present invention, a sheet material made of an amorphous sheet blank cut into a predetermined number of sheets in a predetermined length dimension is provided with a required layer so that the plate thickness in the width direction becomes uniform. One sheet of laminated sheet material is polymerized to form a laminated sheet element sheet, and the sheet element sheets are laminated one by one in a stepwise manner with different intervals between step portions to form a predetermined number of layers. Since the sheet element stacking means for forming the body is configured, the wound sheet element body is a sheet element plate continuously for each block of the winding iron core, and the sheet element is within the window size range of the iron core. The plates can be stacked in a quick and reliable manner so that the joints of the plates are positioned.

In the invention described in claim 6 of the present invention, when stacking the sheet base plates forming the rolled sheet base body, the sheet base plates of each layer are aligned every time they are stacked, and Since there is provided an aligning device and a pressing device for mounting the next sheet material plate on this sheet material plate while pressing the sheet material plate of the previous layer, the stacking of the sheet material plates is performed. Since the work can be performed by stacking the required layers by always maintaining the sheet base plates in an aligned state, the wound sheet base body can be automated and quickly formed by the mechanization means, and the iron core characteristics are excellent. The wound iron core can be efficiently wound.

In the invention according to claim 7 of the present invention, the sheet blank is conveyed to a predetermined position because it is provided with each means for pinching / conveying / unpinching the sheet blank. When stacking by stacking, the multiple amorphous sheet base plates forming the sheet base plates should be smoothly moved to a predetermined transport position without causing any positional deviation or causing any misalignment phenomenon. In addition, since the stacking work can be performed in synchronization with the aligning and pressing device, the wound sheet bodies of the respective blocks constituting the winding iron core are easily stacked by the mechanization means to be formed. be able to.

[Brief description of drawings]

FIG. 1 is a schematic view showing an unwinding device for an amorphous sheet.

FIG. 2 is a configuration diagram showing an entire wound core manufacturing apparatus of the present invention.

FIG. 3 is a configuration diagram of an apparatus for reversing and feeding a sheet material.

FIG. 4 is a plan view showing a main part of the wound core manufacturing apparatus.

FIG. 5 is a side view showing a main part of the wound-core manufacturing apparatus.

FIG. 6 is a front view showing a main part of the wound-core manufacturing apparatus.

FIG. 7 is a side view showing a laminating apparatus for alternately laminating the front surface and the back surface of the sheet material.

FIG. 8 is a front view showing a longitudinal section of a main part of the stacking device.

FIG. 9 is a configuration diagram of an apparatus for conveying, stacking, and stacking sheet blanks of the present invention.

FIG. 10 is an explanatory diagram showing a drawing-out state of the sheet blank.

FIG. 11 is an explanatory view showing a state in which a sheet blank is pulled out.

FIG. 12 is an explanatory diagram showing the drawing of the sheet blank.

FIG. 13 is an explanatory diagram showing a state in which a sheet material plate is placed on a conveyor device.

FIG. 14 is a cross-sectional view of essential parts showing a sheet blank aligning device.

FIG. 15 is a vertical cross-sectional view showing the main parts of the alignment means used in the alignment device.

FIG. 16 is a schematic configuration diagram of a pressing device that presses the sheet blank.

FIG. 17 is a schematic configuration diagram of a sheet element stacking device that stacks required sheet layers to form a wound sheet element body.

FIG. 18 is a schematic configuration diagram of a winding device.

FIG. 19 is a perspective view of wound sheet bodies that are stacked by the method of the present invention.

FIG. 20 is an explanatory diagram illustrating a wound state of the wound sheet body according to the present invention.

FIG. 21 is a plan view of a wound iron core formed according to the present invention.

FIG. 22 is a cross-sectional view of the main parts of the wound core.

FIG. 23 is a plan view of a circular core formed by winding the wound sheet bodies stacked by the method of the present invention.

FIG. 24 is a plan view of a circular iron core wound by a conventional method.

FIG. 25 is a cross-sectional view showing an amorphous sheet material.

FIG. 26 is a cross-sectional view showing a longitudinal section of a main part of a conventional wound core formed by stacking amorphous sheet materials.

[Explanation of symbols]

1 Cutting Device 9, 10 Conveyor Conveyor 11 Reversing Device 13 First Reversing Conveyor 14 Second Reversing Conveyor 21a, 21b Loading Device 31 Laminating Device 34 First Laminating / Aligning Device 35 Second Laminating / Aligning Device 36, 361 First aligning device 37, 37a Guide plate 40a First aligning gutter 40b Second aligning gutter 42 Second aligning device 45 Sheet element stacking device 46 Clamping device 47 Conveying / stacking device 48 Aligning device 51 Pressing device 53 alignment means 61 conveyor device 65 vol winding device 80 winding core A amorphous sheet workpiece B sheet material C sheet workpiece D winding sheet body K _1, K ₂ sensor M ₁ ~M ₉ motor R, R ₁ ~R ₁₁ roller

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H01F 41/02 B29D 9/00 B32B 15/18

Claims (7)

(57) [Claims] 1. A sheet material obtained by stacking a plurality of amorphous sheet blanks and sequentially cutting the amorphous sheet blanks in a predetermined length dimension, and polymerizing the required layers alternately on the front and back sides of the sheet material. A step of forming sheet base plates for laminated layers,
In the block, the sheet base plate having a shorter cutting dimension in one block is set to the upper side, and each sheet base plate cut by sequentially increasing the length by a predetermined length dimension is stepwise as it faces downward, and And a step of forming a wound sheet element for one block by laminating the step portions with different distances. 2. The wound sheet body has a spacing dimension of 1 in each step of each sheet blank forming one block.
Formed by stacking one block of sheet raw plates in a stepwise manner by sequentially shortening the interval dimension of the step portion of each layer sheet raw plate in order from the shortest sheet raw plate in the block to the longest sheet raw plate. The method for stacking iron core materials according to claim 1, wherein 3. In the wound sheet body, the distance between the steps of each sheet material plate in each block is changed from the block located in the innermost layer to the block in the outermost layer in each block. 2. A stacking method for iron core materials according to claim 1, wherein different lengths and optimum lengths are set, and sheet blanks for one block are laminated stepwise. .. 4. The wound sheet body is a sheet base plate in which a sheet base plate having a maximum length dimension in one block is arranged at the lowermost stage, and the length dimensions are successively shortened at predetermined intervals. In a stepwise manner, and sequentially laminating a predetermined number of steps by sequentially increasing the interval dimension of each step portion, and further, each time the sheet blanks for one block are stacked by one stack, together with the sheet blanks already stacked, The stacking method of the iron core material according to claim 2 or 3, wherein the side end faces in the width direction are aligned and formed by pressing and holding after alignment. 5. A sheet material obtained by sequentially cutting a plurality of amorphous sheet blanks into a predetermined length dimension and stacking the sheet materials alternately on the front surface and the back surface of the sheet material to form a single layer. Laminating means for sequentially laminating a plurality of sheet blanks, and the sheet blanks laminated by the laminating means are sandwiched between the respective sheet blanks and pulled out from the laminating means in a stepwise manner, and each sheet blank Sheet element stacking means for forming a wound sheet element body for one block by sequentially stacking a plurality of steps with different step interval intervals, and control means for driving and controlling each of the means in accordance with a predetermined sequence. A stacking device for iron core material, comprising: 6. The sheet base body stacking means includes a holding device for holding the sheet base plates, a transporting / stacking device for linearly moving the holding device to a predetermined position to stack the sheet base plates in a stepwise manner, and the transporting device. An aligning device that aligns the aligned sheet blanks, a pressing device that presses and holds the aligned sheet blanks until the next layer of the sheet blanks is stacked, and control means that drives and controls each of these devices according to a predetermined sequence. 6. The stacking apparatus for iron core material according to claim 5, wherein the stacking apparatus comprises: 7. The nipping device includes a pair of nipping pieces for nipping and transporting a sheet material plate at the ends in the length direction, a cylinder for driving the nipping pieces to open and close, and the nipping device itself. A cylinder for raising and lowering, a drive device for driving the holding device so as to be able to move forward and backward, and a control means for driving and controlling the cylinders and the like according to each sequence of holding, conveying, and releasing the holding device. The stacking device for iron core material according to claim 6.