JPS5824931B2 - Automatic stacking device for transformer cores - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic stacking device for transformer cores, and in particular, a first direction bias (hereinafter referred to as right bias) and a second direction opposite to the first direction (hereinafter referred to as left bias). This invention relates to an automatic stacking device for transformer cores in which layers of core plates (2 to 3 core plates constitute one layer) are stacked alternately layer by layer.

FIG. 1 is a plan view and a perspective view showing an example of transformer cores stacked alternately; FIGS. 1a and 1c are respectively plan views, and FIG. 1 is a perspective view corresponding to FIG. FIG. 1d is a perspective view corresponding to FIG.

When stacking such iron core plates manually, they are stacked one layer at a time (that is, two or three at a time), so even when stacking automatically, unless there is a device that stacks them one layer at a time, the work speed is faster than manual stacking. is delayed.

However, in the past, there was no device that could automatically stack a predetermined number of right-side and left-side iron core plates alternately and at high speed.

The object of the present invention is to provide a device that can automatically stack any number of right-side and left-side iron core plates alternately and at high speed, and will be described in detail below with reference to the drawings.

FIG. 2 is a side view showing the embodiment of the present invention, and FIG. 3 is a perspective view showing the main parts of the apparatus shown in FIG.

In these figures, 2 is a core plate on the right side, and 102 is a core plate on the left side.

However, although both the right-side core plate 2 and the left-side core plate 102 have the same width as shown in FIG. It is diagrammatically represented by a line shorter than the width of plate 2°102.

A similar graphical representation will be used below. 1 is the first chute, 101 is the second chute, 201 is the central beam, 3,10
3 are respectively chute front wall members, 4 and 104 are each chute rear wall members, 7°107 are respective pillars, and 44.
144 are cushion boards, 45, 46, 145,
146 are cushion springs, 47 and 147 are ramps, 44, 45, 46, and 47 constitute a first ramp device, and 144, 145, 146, and 147 constitute a second ramp.
Configure a ramp device.

Reference numeral 205 is a cart, and the iron core plates stacked on the cart 205 are schematically shown by lines, but the middle part of the stack is wider than the width of the iron core plates in the sense that similar iron core plates are stacked. It is also represented schematically by short lines.

A similar graphical representation will be used below.

206 is a wheel of the truck 205, 207 is an axle of the wheel 206, 208 is a rail on which the wheel 206 runs, 203 is a guide rod vertically erected on the truck, and 204 is a guide rod holder.

Furthermore, 202 is a distribution axis provided on the central beam 201, and 20
9 indicates the arm.

The width of the chute 1.101 is narrower than the width of the iron core plate 2, 102, and the iron core plate 2, 102 is inclined in the width direction so that the lower end is on the chute rear wall member 4.104 side.
are stacked inside.

A predetermined number of iron core plates 2 on the right side fall down the chute 1 by a mechanism explained in detail in a later section, and the tilting table devices 44, 45,
46 and 47 and slides down on the cushion plate 44 in the direction of the guide rod 203.

The falling of the iron core plate 2 on the right side and the fall of the iron core plate 102 on the left side, and the pendulum movement performed by the arm 209 with the shaft 202 as the fulcrum, are synchronized and the same as each other, as will be explained in detail in a later section. This is repeated periodically, but when the right-side core plate 2 slides down on the cushion plate 44, the distribution is such that the right side of the lower end of the arm 209 abuts the side surface of the lower end of the iron core plate 2 on the cushion plate 44, From that position, when the arm 209 swings to the left, the right side of the lower end of the arm 209 holds the side surface of the lower end of the iron core plate 2, guides the iron core plate 2, and lowers it.
Insert the hole (see Figure 1) in the core plate 2 into the guide rod 2.
03, the holding of the iron core plate 2 is released, and the iron core plate 2 is dropped and stacked on the trolley 205.

After this movement, the arm 209 further swings to the left, and the left side of the lower end of the arm 209 is placed on the slope device 144, 145.
It reaches a position where it abuts the lower end of 146°147.

At this point, a predetermined number of iron core plates 102 on the left side fall down the chute 101 and the inclined table devices 144 , 145 , 14
6.

147 and slides down on the cushion plate 144.

From that position, the arm 209 swings to the right, holds the side of the lower end of the iron core plate 102 with the left side of the lower end of the arm 209, guides the iron core plate 102 and lowers it, and punches the iron core plate 102. are fitted onto the guide rod 203, and then the holding of the iron core plate 102 is released, and the iron core plate 102 is dropped and stacked on the trolley 205.

As explained above, the action of dropping a predetermined number of iron core plates, and the distribution of the iron core plates that fall and slide on the cushion plate, are performed by two arms.
09, the holding operation is performed by guiding the held iron core plate 2 according to the pendulum movement of the arm 209, releasing the holding, and placing it on the trolley 205.
The distribution is repeated for the right-side iron core plate 2 and the left-side iron core plate 102 according to the pendulum movement of the arm from right to left and from left to right, and the right-side iron core plate is placed on the trolley 205. and the iron core plate on the left side are stacked alternately.

The driving shaft 15, gears 16, 17, shown in FIGS. 2 and 3,
18, 59, 60, 61, chain sprocket 62.
63, the chain 64, the connecting shaft 65, the synchronizing shaft 66, etc. are distributed to the iron core plate 2 on the right side by performing the operation of the arm 209 and the operation of dropping a predetermined number of iron core plates into the chute 1 according to a predetermined program. It is part of the drive control mechanism for moving.

However, in FIG. 3, in order to clearly show the drive shaft 15 for the purpose of showing the drive control mechanism after the drive shaft 15, the mechanism for driving the drive shaft 15 is not shown.

As shown in FIG. 2, a similar drive control mechanism is provided for the left-side iron core plate 102, but some symbols are omitted to simplify the drawing.

The structure and operation of each part of the apparatus shown in FIG. 2 will be explained in more detail below.

FIG. 4 is a partially sectional side view showing one embodiment of the chute 1. FIG.

In all the drawings below, the same reference numerals indicate the same or corresponding parts.

As explained above, the width W of the space formed between the chute front wall member 3 and the chute rear wall member 4 is smaller than the width W of the iron core plate.

In FIG. 4, 5 is a support claw, 6 is a separation claw, 8.9 is a sliding body, 20 is a second support claw, 21 is a second separation claw, and 22 is a third separation claw.
Separation claws, 23 is a fourth separation claw, 24 is a fifth separation claw, 25.
Reference numerals 26, 27, 28 and 29 are respectively sliding bodies, and those shown at 31°, 32, 33, 34 and 35 in FIG. 2 are air cylinders that move these sliding bodies back and forth.
In FIG. 2, some of these parts are shown schematically due to the drawing size.

30 is an elastic body, 10.13 is a connecting pin, and 12.14 is a connecting rod.

The support claw 5 and the separation claw 6 are made of a hard body and are each integrated with a sliding body 8.9, and the sliding bodies 8, 9 are slidably supported by the support 7.

FIG. 5 is an elevational view showing the vicinity of the chute rear wall member 4;
The figure is a sectional view taken along line I-I in Figure 5, and Figure 7 is a cross-sectional view taken along line I-I in Figure 5.
FIG. 7A is a perspective view of the part shown in FIG. 2 shows a state in which the support claw 5 has entered the chute 1 and the separation 6 has retreated from the chute 1.

Further, FIG. 8 is a graph showing the strokes of the advancing and retracting of the supporting claws 5 and the separating claws 6, FIG. 9 is a side view showing the advancing and withdrawing strokes of the supporting claws 5 and the separating claws 6, and FIG. 10 is a graph showing the structure of the separating claws 6. 9th of them
Plan and side views showing embodiments other than those shown in the figures, 1st
FIG. 1 is a front view and a bottom view showing an embodiment of the structure of the second to fifth separating claws.

The operations of the support claw 5 and separation claw 6 will be explained with reference to these drawings.

The supporting claw 5 has an obtuse inclined surface at its upper end, as shown in FIG. 9a.
In the position shown in , the lower end of the iron core plate 2 is supported.

The separation claw 6 has a knife edge at its upper end.

In the examples shown in Figures 4 to 7 and 9, the tip is a straight knife, but it has an arc shape as shown in Figure 10a, an inclined shape as shown in Figure 10S, and a knife edge as shown in Figure 10C. Various shapes such as a mountain shape as shown in can be adopted.

As is clear from FIGS. 5 and 7, the positional relationship between the supporting claws 5 and the separating claws 6 is such that one separating claw 6 is arranged between a pair of left and right supporting claws 5, and the upper surface of the supporting claws 5 The vertical distance t (see FIGS. 5 and 6) between the upper surface tips 3 of the tip cap and the separation claw 6 is equal to the total thickness of the iron core plates 2 to be taken out at once, and the 5th
In the example shown in FIG. 6 and FIG. 6, the thickness is the same as that of two iron core plates 2.

Further, the preferable inclination angles of the supporting claws 5 and the separating claws 6 are such that γ in FIG. 6 is around 45° and δ is 20 to 300.

In the example shown in FIG.
One piece is provided between each of the supporting claws 5, but it is also possible to reverse the positional relationship between the supporting claws 5 and the separation claws 6, and furthermore, it is possible to divide the winter melon into three or more pieces and combine them. It can also be operated.

The sliding bodies 8 of the pair of left and right supporting claws 5 are connected by a connecting pin 10 (see FIG. 7), and the connecting pin 10 and the arm of the crank 11 are connected by a connecting rod 12.

The same applies to the separation claw 6, and a connection pin 13 provided on the sliding body 9 and the arm of the crank 11' are connected by a connecting rod 14, and both cranks 11, 11'
5 through gears 16, 17° and 18.

Gears 17 and 1 of these cranks 11 and 11'
8 have the same number of teeth, and therefore the periods of reciprocating motion of the sliding bodies 8 and 9, that is, the supporting claw 5 and the separation claw 6, are the same.

FIG. 9a shows a state immediately before the separation claw 6 is about to protrude from the chute rear wall member 4, and at this time the support claw 5 is still within the chute 1 and supports the iron core plate 2.

This state is shown by the phase of point P in FIG.

Next, Figure 9 shows a state in which the separating claw 6 protrudes a little (approximately 2 mm) from the chute rear wall member 4, and the top end of the supporting claw 5 is about to enter behind the chute rear wall member 4. The two iron core plates 2 from the bottom of the plate group are about to be separated, and the iron core plate group above these is supported by the separating claws 6 instead of the supporting claws 5.

This state is shown by the phase at point Q in FIG.

When the separation claw 6 further enters the chute 1 and the support claw 5 retreats, one end of the two separated iron core plates 2 begins to fall along the inclined surface of the support claw 5.

This state is shown by the phase of point C in FIG. 9 and point R in FIG. 8.

Finally, as shown in FIG. 9d, when all of the supporting claws 5 and their sliding bodies 8 are withdrawn from the chute 1, the entire core plate 2 falls down the chute 1.

This state is shown by the phase of point S in FIG.

After this, as is clear from the graph in FIG. 8, the separating claws 6 withdraw and the supporting claws 5 move in, so that the supporting claws 5 support the core plate group instead of the separating claws 6. , furthermore, when the support claw 5 enters the withdrawal operation and the separation claw enters the entry action, the ninth
The state shown in FIG. a, that is, the phase at point P after one cycle is reached, and the above-described operation is repeated.

As described above, a predetermined number of iron core plates 2 are dropped from the chute 1 by the movement of the support claws 5 and the separation claws 6, and the same is true for the second chute 101. If the stacked number and weight of the iron core plates 2 on the claws 5 and separation claws 6 are too large, the supporting claws 5 and separation claws 6 will not operate smoothly. In order to maintain the iron core plate 2 and to smoothly drop and supply the iron core plate 2, one or more stages of separating and holding means for a group of iron core plates is provided which enters and exits the chute 1 to hold and drop the iron core plate 2.

In the embodiment shown in FIG. 4, this separation/holding means is composed of a second support claw 20, second to fifth separation claws 21 to 24, and sliding bodies 25 to 29 each including these claws integrally. The sliding bodies 25 to 29 are slidably supported by the support column 7.

As shown in FIG. 11, the second support claw 20 does not have a slope like the support claw 5, and an elastic body 30 is attached to the upper surface of the second to fifth separation claws 21 to 24. That's right.

The distance α between the tips of the separation claws 21 to 24 and the elastic body 30 is preferably 0.5 to 1 m71+8 degrees;
An inclination angle β is provided on the tip surface of No. 4.

When the number of core plates 2 above the support claws 5 and separation claws 6 is sufficient, the second support claws 20 enter into the chute 1 and hold the core plates above it, as shown in Fig. 4. However, when it becomes necessary to replenish the iron core plate on top of the supporting claws 5, the second supporting claws 20 are moved out of the chute 1, and the upper surface of the second supporting claws 20 and the second separating claws 21 are separated. The iron core plate 2 located between the distance T is dropped.

At this time, the second to fifth separating claws 21 to 24 are connected to the chute 1.
The core plate 2 is pressed toward the chute front wall member 3 side by receiving the force pushed inward, and the core plate 2 is held in each part.

Then, when the second support claw 20 returns to the inside of the chute 1, the second separation claw 21 is temporarily withdrawn and then reentered, and the second
The iron core plate is held on the supporting claws 20, and then the third to fifth
The separating claws 22, 23, and 24 are moved in and out in the same manner one after another, and a predetermined number of iron core plates are dropped onto the separating claw portions located below them.

Therefore, the core plates 2 can be sequentially replenished to the support claws 5 and the separation claws 6.

Of course, the separation and holding means for this core plate group can be increased or decreased from the four stages in the embodiment shown in FIG. 4, and the number of stages is determined depending on the weight of the core plate 2, the length of the chute 1, etc. Ru.

The above description is about the first chute 1, but the same applies to the second chute 101.

As already explained, the iron core plate that has fallen from the chute 1 is received by the cushion plate 44 on the ramp device, slides down on this, and is loaded onto the trolley 205. A distribution arm 209 is provided as a mechanism for guiding the material onto the cart.

Figure 12 is a side view showing the movement of the arm, Figure 13 is a side view of the arm, Figure 14 is a front view of the arm, and Figure 15 is a front view of the arm.
The figure is a side view showing the operation of the tumbler, and FIG. 16 is a graph showing an example of the operation of the drive control mechanism of the present invention.

As shown in FIGS. 2 and 12, a distribution shaft 202 is passed through the lower part of the central beam 201, and the shaft 202 is reciprocated in a pendulum-like manner on a guide rod 203 between the bases of both inclined tables 47, 147. For distribution, attach the arm 209, and attach the L bracket 2 to the arm 209, which receives the lower side of the iron core plate, as shown in FIGS.
16, 226 and permanent magnets 215, 225 attached thereto are supported via a small shaft 210.

In FIGS. 13 and 15, 214 is a compression spring that presses the upper end of the tumbler 212 against the side plate 221.
The upper end of 22 is also pressed against side plate 211 by a similar compression spring 224 (not shown).

The arm 209 reciprocates in synchronization with the fall of the iron core plate, and in the position shown in FIG.
After passing through the position shown in the figure, the position shown in Figure 12C is reached, and the iron core plate on the left side is dropped, and the L fitting 226 and the permanent magnet 22
5 to hold the lower end of the iron core plate on the right side as shown in Fig. 12 d.
After passing through the position shown in Fig. 12A, the iron core plate on the right side is dropped, and the lower end of the next iron core plate on the left side is held.

When the tumbler 212 is in the position shown in FIG. 12a, it is in the state shown in FIG. 15a, and in the position shown in FIG. 12C, it is in the state shown in FIG. 15S.

In the state shown in Fig. 15, the dowel of the tumbler 212 hits the inner surface of the lower end of the chute inner wall member 3, compressing the compression spring 214, and skillfully pulling the L fitting 216 and the permanent magnet 215 into the left-side iron core. Drop the board.

The tumbler 222 in the state of FIG. 15a is similar to the tumbler 212 in the state of FIG. 15a.

(not shown). During distribution, the iron core plate leaves the grip of the arm and falls.The lower side of the iron core plate passes over the tip of the guide rod 203 and is carried to the foot of the opposite side. However, in order to make this fitting more secure, each ramp device 44, 45 is
, 46, 47, 144, 145.

146 and 147, and provide respective alignment plates 58 and 158 (see Figures 2 and 12).Fit each alignment plate at a slightly lower height than the tip of the guide rod 203. Attach the mating auxiliary plates 50 and 150, and align the mating auxiliary plates 50 and 150 with the alignment plates 58 and 1.
For example, as shown in FIG. 12C, the iron core plate that falls when the end of the arm 209 is no longer held by the metal fitting and the permanent magnet is separated from the alignment plate 58 by the fitting auxiliary plate 50. Once the core plate is received in an extended state and the punched hole is securely fitted to the guide rod 203, the fitting auxiliary plate 50 escapes from the alignment plate 58 and the iron core plate is placed on the trolley 205 as shown in FIG. 12d. to fall.

The fitting auxiliary plate 50 is driven by the rotation of the driving shaft 15 (see FIG. 2) by the chain sprocket 63. It is transmitted to the synchronous shaft 66 via the chain 64 and chain sprocket 62, and the gear 5
9, 60, 61 to the crank pin 57, and the rotational movement of the crank pin 57 is transmitted to the fulcrum 5 of the swing lever 54.
5 into a rocking motion about the center of the rocking lever 54, and further converts this rocking motion to a fitting auxiliary plate 50 connected to a long groove at the upper end of the rocking lever 54 via a pin shaft 53 and supported by a horizontal guide 52. This information is used to enter and exit horizontally.

The same applies to the fitting auxiliary plate 150.

In the embodiment of the invention shown in FIG.
The forward and backward movements of the separating claws 6 and 106, the pendulum-like reciprocating movement of the arm 209, and the forward and backward movements of the fitting auxiliary plates 50 and 150 are all synchronized by gears or chains.

A mechanism including the above-mentioned gears, chains, etc. that drives these parts in relation to each other is called a drive control mechanism.

FIG. 16 is a graph showing an example of the synchronization mode of the drive control mechanism, and the horizontal axis represents the rotation angle of the main shaft (not shown) of the drive control mechanism.

However, in FIG. 16, due to the width of the drawing, the rotation angle of the parent axis is shown shifted by π from that shown in FIG. 8.

This rotation angle has meaning only in a relative relationship, and only the relative relationship in FIG. 16 is shown.

The vertical axis in FIG. 16a is the stroke of the support claw 5 and separation claw 6,
The vertical axis in FIG.
The top end of the os top light m separation claw 6.106 (see Figures 5, 6, and 7) is connected to the chute rear wall member 4, 104.
The dashed line shows the state in which they have entered the chute 1 from the surface of the chute 1, and the broken line shows the state in which they have escaped from the chute 1.

The vertical axis in Figure 16 indicates that the center of the arm 209 is the center of the device (
The vertical axis in FIG. 16d represents the stroke from the alignment plate 58 at the tip of the fitting auxiliary plate 50, and the vertical axis in FIG. The axis indicates the stroke from the alignment plate 158 at the tip of the fitting auxiliary plate 150.

In addition, in Fig. 16 d and e, the solid line indicates the alignment plate 58.158.
The dashed line indicates the state in which the plate is moving toward the center of the device from the surface of the plate, and the dashed line indicates the state in which it is leaving.
It shows the distance between the edges of the image.

In Fig. 16, when the horizontal axis is at the relevant phase, the mounting state is as shown in Figs. The claw 106 and the support claw 5 on the right side are in the advanced state, and the distribution is on the arm 20
9 is a position near the left inclined table 147 side, the fitting auxiliary plate 50
, 150 are in the approach position, and the distance between the leading edges of the images is narrow.

From this state, when the sensing phase advances, the state shown in FIG. 12b is reached, when the π phase advances, the state shown in FIG. 12c is reached, and when the 37/2 phase advances, the state shown in FIG. 12d is reached, and this is repeated to perform automatic stacking.

The cart 205 on which the iron core plates are stacked is a machine bed 231 (
Since the iron core can be moved on two rails 208 attached to the flat surface plate 230 (see Fig. 2), when the automatic loading of the iron core is completed, the cart is pulled out, the guide rod is pulled out, and the iron core is taken out.

Note that this device is designed so that when the bundle 42, 142 is turned to the left, the main support 38, 138 and the chute rear wall member 4, 104 attached thereto open outward, so that the shoe) 1.1' Iron core plates can be easily loaded into the 01.

In addition, the chute front wall member 3,103 and the alignment plate 58°158
Several types of iron core plates with different thicknesses are prepared and can be replaced as desired, allowing automatic stacking of iron core plates of several widths.

As is clear from the above description, according to the present invention, it is possible to obtain an automatic loading amount of transformer cores that automatically stacks layers of right-side core plates and layers of left-side core plates alternately and automatically.

[Brief explanation of the drawing]

Fig. 1 is a plan view and a perspective view showing an example of transformer cores stacked alternately, Fig. 2 is a side view showing the embodiment of the present invention, and Fig. 3 shows the main parts of the device shown in Fig. 2. FIG. 4 is a partially sectional side view enlarging a portion of FIG. 2, FIG. 5 is an elevational view corresponding to FIG. 4, and FIG. 6 is taken along line I-N in FIG. Fig. 7 is a perspective view corresponding to Figs. 7 is a side view, FIG. 10 is a plan view and a side view showing an embodiment of the separation claw structure used in this invention other than that shown in FIG. 12 is an enlarged side view of a part of Fig. 2, Fig. 13 is an enlarged side view of a part of Fig. 12, and Fig. 14 is an enlarged side view of a part of Fig. 13. 15 is a side view showing the operation of the portion shown in FIG. 13, and FIG. 16 is a graph showing an example of the synchronization aspect of the drive control mechanism of the present invention. In the figure, 1 is a first chute, 101 is a second chute, 2 is an iron core plate closer to the first direction, 102 is an iron core plate closer to the second direction, 3, 103 are chute front wall members, 4, 1
04 is the chute rear wall member, 5゜105 is the support claw, 6,1
06 is a separating claw, 7 and 107 are pillars, 8 is a sliding body for supporting claws, 9 is a sliding body for separating claws, 10 is a connecting pin, 11 is a crankshaft, 12 is a connecting rod, 13 is a connecting pin, and 14 is a connecting rod. Rod,
15 is the driving shaft, 42.142 is the bundle, 44,144
is a cushion plate, 45, 145, 46, 146 are cushion springs, 47.147 is a tilting table, 44° 45.46
, 47 constitute a first ramp device, 144 , 145
, 146 and 147 constitute a second ramp device. 50,150 is a fitting auxiliary plate, 58.158 is an alignment plate, 6
6. 166 is the synchronization shaft, 201 is the central beam, 202 is the distribution axis, 203 is the guide rod, 205 is the trolley, 209 is the distribution arm, 210 is the pin, 211, 221 is the side plate, 212, 2
22 is a tumbler, 214 and 224 are compression springs, 215° and 225 are permanent magnets, and 216 and 226 are L fittings. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims] 1. In an automatic stacking device for transformer cores that alternately stacks layers of core plates closer to a first direction and layers of core plates closer to a second direction opposite to the first direction. , the iron core plate is formed between the chute front wall member provided on the first side surface of the central beam and the chute rear wall member provided opposite thereto, and has a width narrower than the width of the iron core plate, and the iron core plate is inclined in the width direction. The first
A second chute has a structure symmetrical to the first chute with respect to the central beam, and the iron core plates are laminated at an angle in the width direction. The supporting claws move into and out of the respective chutes to support the lower ends of the iron core plates stacked on the wall member side and to alternately drop a predetermined number of the iron core plates. The support claws are provided above the supporting claws to separate the predetermined number of iron core plates, and to support the lower ends of the upper iron core plates when the respective support claws exit from the chute and drop the predetermined number of iron core plates. Respective separation claws that move into and out of the respective chutes in synchronization with the respective support claws, a first slope that receives the core plate falling from the first chute and lowers the core plate in the direction of the central beam. a second ramp device that receives the iron core plate falling from the second chute and lowers the core plate in the direction of the central beam; the first ramp device and the second ramp device; The iron core plate is attached to each iron core plate by alternately adsorbing the lower ends of the iron core plate on the first ramp device and the iron core plate on the second ramp device by reciprocating in a pendulum-like manner between the two. The sorting device is stacked on the truck while passing through a guide rod provided on the truck through the punching hole, and the device is equipped with an arm, the supporting claw, the separating claw, and a drive control mechanism that drives the arm in relation to each other. An automatic stacking device for transformer cores, characterized by: 2. As for distribution, the arms have respective L fittings on both sides of the tip that receive the lower side of the iron core plate on each ramp device, each magnet that attracts the side of the lower side of the iron core plate, and each of these L fittings. It is equipped with a tumbler to which a metal fitting and each magnet are attached, and the dowel of each tumbler hits the inner surface of the lower part of the chute inner wall member at each extreme of the reciprocating movement of the arm, and the L fitting and magnet of the tumbler are connected. The automatic stacking device for transformer cores according to claim 1, characterized in that the distribution is carried out skillfully. 3. A patent characterized in that each tilting platform device is provided with respective aligning plates that face each other and form a space corresponding to the width of the iron core plates in order to align the positions in the width direction of the iron core plates stacked on the trolley. An automatic stacking device for transformer cores according to claim 1. 4 Each of the alignment plates receives the end of each core plate that falls away from the arm at each limit of the arm's reciprocating motion. Claim 3, characterized by comprising respective fitting auxiliary plates that move in and out of the direction of the guide rod so as to prevent the ends of the iron core plates from falling until they are securely fitted. Automatic stacking device for transformer cores as described in . 5. The automatic stacking device for transformer cores according to claim 1, wherein the chute front wall member has a structure in which members having different thicknesses can be replaced and installed. 6. The automatic stacking device for transformer cores according to claim 3 or 4, wherein both the chute front wall member and the aligning plate have a structure in which members of different thickness can be replaced and installed.