JPS6142309Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an induction heating device.

Generally, when induction heating a metal bar, square or hollow material, the inductor is replaced in response to changes in the dimensions of the material to be heated. As shown in FIGS. 1 and 2, a conventional induction heating device of this kind has a pedestal 4 on which a working inductor 2 and a standby inductor 3 are fixed. The pedestal 4 is provided so as to be movable in the horizontal direction by running wheels 5 attached to the pedestal 4 along a guide rail (not shown). Bus bars 6 and 7 for supplying power are connected to the above-mentioned inductor 2 and standby inductor 3, respectively.
The busbars 6 and 7 extend vertically downward and pass through an opening 8 provided on the upper surface of the power supply panel 1 in parallel to the moving direction of the pedestal 4 to connect the busbars provided inside the power supply panel 1. The length is such that the lower end of the bus bar 6 or the lower end of the bus bar 7 can be connected to the lower end of the bus bar 7 by moving the mount 4. In order to reduce the intrusion of dust into the inside of the power supply panel 1, the opening groove 8 is covered with two flexible plate members 10a and 10b made of rubber or the like, as shown in FIG. The bus bars 6 and 7 are connected to these two plate members 10.
It passes through the contact portions of a and 10b. Note that the material to be heated (not shown) passes through the opening 2a of the inductor 2 used and is heated.

Now, when replacing the inductor from the used inductor 2 to the standby inductor 3 due to a change in the dimensions of the material to be heated, move the pedestal 4 to the right until the used inductor 2 reaches the standby position 10, and replace the standby inductor 3 with the heated inductor 3. Move the material to the heating position.

In the above-mentioned conventional induction heating device, since the power supply panel has an opening on the top surface, it is not possible to make the power supply panel completely dust-proof, and the lower part of the opening on the power supply panel is partitioned off with a metal plate, etc. In order to prevent dust from entering the equipment storage space inside the power supply panel, it is necessary to provide extra space inside the power supply panel, and the busbar that connects the inductor and the power supply section becomes longer, resulting in busbar loss. Moreover, since the inductor is replaced by moving laterally the frame to which the inductor in use and the standby inductor are fixed, there are drawbacks such as an increase in the space occupied by the induction heating device.

The present invention was developed in view of the above-mentioned drawbacks, and its purpose is to support an inductor on a power supply panel so as to be rotatable in a direction perpendicular to the supply direction of the heated material, and also to install a power supply device on the power supply panel. When the inductor is supported at a position where the material to be heated is inductively heated, the bus bar connected to the inductor is connected to the bus bar connecting means, so that the power supply board has a completely sealed structure. It is an object of the present invention to provide an induction heating device which can shorten a bus bar for supplying power to an inductor and reduce the occupied space.

An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 4, on the upper surface of the power supply panel 1, an inductor support 11 for the inductor 2 in use and an inductor support 12 for the standby inductor 3 are provided so as to face each other on both sides of the path of the heated material. It will be done. The working inductor 2 and the standby inductor 3 are provided at positions facing each other on both sides of the passage, and are located in a plane (a fourth direction) perpendicular to the feeding direction of the material to be heated (in FIG. 4, a direction perpendicular to the paper surface).
It is supported as described below so that it can rotate along the plane (in the same direction as the plane of the paper in the figure), and is configured so that only one of the inductors is located in the supply path of the material to be heated. . That is, the lower left end portion of the inductor 2 in use in FIG. 4 is supported by the support stand 11 by a hinge 13 so as to be rotatable in a direction perpendicular to the supply direction of the material to be heated (not shown). Further, the lower right end portion of the standby inductor 3 in FIG. 4 is supported by a support base 11 by a hinge 14 so as to be rotatable in a direction perpendicular to the supply direction of the material to be heated (not shown). On the lower surfaces 2b and 3b of the working inductor 2 and the standby inductor 3, there are short busbars 1 connected to respective coils (not shown) of the working inductor 2 and the standby inductor 3.
5 and 16 are provided in a protruding manner. Further, two pedestals 17a and 17b are fixed to the upper surface of the power supply panel 1, and the inductor 2 in use is rotated counterclockwise in FIG. 4, or the standby inductor 3 is rotated clockwise in FIG. The pedestals 17a and 17b are placed on the lower surface 2b of the inductor 2 in use or the lower surface 3b of the standby inductor 3.
The upper end surfaces of the inductors 2 and 3 horizontally support the inductor 2 in use or the inductor 3 on standby. Furthermore, when the working inductor 2 or the standby inductor 3 rotates and comes into contact with the pedestals 17a, 17b and is supported in a horizontal position, the inductor 2 or the standby inductor 3 is provided with a protruding structure on the lower surface 2b or 3b of each of the standby inductors 2 and 3. A busbar connector 18 is provided on the top surface of the power supply panel 1 so that it can be connected to the end of the busbar 15 or 16. This bus bar connector 18 is connected to a power supply device (not shown) inside the power supply panel 1. Note that when the inductor 2 in use or the standby inductor 3 is supported in a horizontal position, the material to be heated is exposed to the opening 2 of the inductor 2 in use.
a or through the opening 3a of the standby inductor 3, and induction heating of the material to be heated is performed. Further, when the inductor 2 in use or the standby inductor 3 is supported in a horizontal position, the connection between the busbar 15 or 16 and the busbar connector 18 is closed or opened by a remote controller or manual lever (not shown). . Further, the inductor 2 in use or the standby inductor 3 is rotated by a drive device (not shown), such as an air cylinder or an electric operating device.

In the induction heating device configured as described above, when the inductor 2 in use is in the standby position, the inductor 2 in use stands upright on the inductor support stand 11 as shown by the chain line in FIG. 4, and cannot be used from this state. When performing induction heating of the material to be heated using the inductor 2, the inductor 2 used is rotated counterclockwise by the drive device, and the pedestals 17a, 17b are
The lower surface 2b of the inductor 2 is brought into contact with the inductor 2 to support the inductor 2 horizontally. At this time, the busbar 15 protruding from the inductor 2 in use reaches a position where it can be connected to the busbar connector 18 provided on the top surface of the power supply panel 1, and the busbar 15 is connected to the busbar by a remote controller or a manual lever. Connector 1
8 is made. Here, the material to be heated is supplied to the opening 2a of the inductor 2 in use, and power is supplied from the power supply device to the inductor 2 in use to perform induction heating of the material to be heated. When replacing the inductor from this state, first stop the power supply to the inductor 2 in use, and then use the remote controller or manual lever to
The connection with the busbar connector 18 is opened, the drive device is started, and the inductor 2 in use is rotated clockwise in FIG. When the position shown by the chain line is reached, the rotation is stopped. Next, the drive device is started to rotate the standby inductor 3 in the clockwise direction in FIG.
7a and 17b to support the standby inductor 3 horizontally. At this time, the busbar 16 protruding from the standby inductor 3 reaches a position where it can be connected to the busbar connector 18 on the top surface of the power supply panel 1, and the busbar 16 is connected to the busbar 16 by a remote controller or manual lever.
and the bus bar connector 18. Here, the device to be heated is supplied to the opening 3a of the standby inductor 3, and the power supply device is connected to the standby inductor 3.
The material to be heated is heated by induction.

As explained above, in the present invention, a plurality of inductors are each supported on a power supply panel so as to be rotatable in a direction perpendicular to the supply direction of the heated material, and
The power supply device includes bus bar connection means for connecting the bus bar connected to the inductor to the power supply device inside the power supply panel when the inductor is rotated and supported at a position where the material to be heated is heated by induction. When the inductor is moved to replace the inductor, the busbar connecting the inductor and the power supply device is moved only outside the power supply panel.
The power supply panel can be sealed to have a completely dust-proof structure, the power supply panel can be made smaller, and the length of the busbar connecting the inductor and the busbar connection means described above can be shortened, reducing busbar loss. can.

[Brief explanation of drawings]

Fig. 1 is a plan view showing a conventional example of an induction heating device;
Figure 2 is a front view of Figure 1, Figure 3 is A- of Figure 1.
A view in the direction of arrow A and FIG. 4 are front views showing one embodiment of the induction heating device according to the present invention. 1...Power supply panel, 2...Inductor used, 3...
Standby inductor, 15, 16...Bus bar, 18
...Busbar connector.

Claims (1)

[Claims for Utility Model Registration] Induction heating comprising a power supply panel and a plurality of inductors supplied with power from a power supply device inside the power supply panel, and in which any one of the plurality of inductors is used alternately. In the apparatus, each of the plurality of inductors is supported on the power supply panel so as to be rotatable in a direction perpendicular to the supply direction of the material to be heated, and the inductor is arranged such that the inductor matches the supply path of the material to be heated. An induction heating device characterized in that it is provided with a connection means that is detachably connected to a power supply device when the induction heating device is positioned as shown in FIG.