JPH0660974A - Induction heating device - Google Patents

Abstract

PURPOSE:To downsize a device, and improve a maintenance characteristic by replacing a conveying mechanism of a material to be heated with a mechanism formed by using freely rotatable rollers and gears instead of a through- conveyor. CONSTITUTION:A torque energizing mechanism 19 is formed of a driving device 8, a sprocket wheel 9 and a roller chain 10. When torque is energized to the first gear 15 of a conveying mechanism 18 by means of the torque energizing mechanism 19, respective rollers 14 formed integrally with the first gear 15 are rotated in the same direction by means of the second gear 16 meshed with the first gear 15. Thereby, a material 12 to be heated is heated to a prescribed temperature while being conveyed toward the other end from one end of an induction heating coil 1. Thereby, In the case where the induction heating coil is replaced, when the roller chain 10 of the torque energizing mechanism 19 is disconnected, since the conveying mechanism 18 can be taken out in a lengthwise direction, the induction heating coil 1 can be replaced easily. Since a wheel to support a through-conveyor 2 becomes unnecessary, a device can be downsized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an induction heating apparatus for heating a material to be heated while it is being conveyed, and more particularly to an improvement of a conveying mechanism for conveying the material to be heated.

[0002]

2. Description of the Related Art FIG. 8 is a front view showing a conventional induction heating apparatus disclosed in, for example, Japanese Utility Model Laid-Open No. 57-38586. In the figure, 1 is an induction heating coil arranged in the longitudinal direction of the furnace, 2 is a through conveyer penetrating the induction heating coil 1,
Wheels 3 and 4 support the through conveyor 2, and are arranged at intervals longer than the longitudinal direction of the induction heating coil 1.
5 is arranged inside the induction heating coil 1 and is a through conveyor 2
6 is a guide rail, 6 is a heat retaining device that is arranged outside the induction heating coil 1 to prevent the temperature of the through conveyor 2 from decreasing, 7 is a sprocket wheel provided on the same axis as the wheel 4, 8 is a driving device, and 9 is The sprocket wheel provided on the rotary shaft of the drive unit 8, 10 is the sprocket 7,
Reference numeral 11 is a roller chain connecting 9 and 11 is an endless transfer conveyor arranged so that the material to be heated 12 can be supplied to the through conveyor 2 via the wheel 3.

Next, the operation will be described. The material 12 to be heated 12 is supplied to the penetrating conveyor 2 by the conveying conveyor 11 while the induction heating coil 1 is driven and the driving device 8 is activated to drive the penetrating conveyor 2 in the direction of the arrow in the figure. The material to be heated 12 conveyed by the through conveyor 2 is heated by the induction heating coil 1 to a predetermined temperature while being conveyed from one end to the other end of the induction heating coil 1, and the next step is performed from the end side of the through conveyor 2. Is supplied to.

[0004]

Since the conventional induction heating apparatus is constructed as described above, the induction heating coil 1 is large in size because the wheel 4 for supporting the penetrating conveyor 2 is required on the discharge side of the material 12 to be heated. In addition, induction heating coil 1
When exchanging, the endless penetrating conveyor 2 is cut off, the induction heating coil 2 is replaced, and then the penetrating conveyor 2 needs to be rejoined, resulting in a long working time and a long time for maintenance and inspection. It was

The present invention has been made to solve the above problems, and an object thereof is to obtain an induction heating apparatus which can be downsized and whose maintainability can be improved.

[0006]

In an induction heating apparatus according to the present invention, a predetermined space is provided between a pair of frames arranged in the longitudinal direction in an induction heating coil arranged in the furnace longitudinal direction. A plurality of rotatable rollers provided,
A first gear provided at one end of each roller, a second gear that is engaged between the first gears and is rotatable, and a rotational force energizing force that applies a rotational force to the first or second gear. It is equipped with a mechanism.

[0007]

The transport mechanism of the induction heating device according to the present invention is
It can be easily inserted and removed in the longitudinal direction within the induction heating coil.

[0008]

【Example】

Example 1. Embodiment 1 of the present invention will be described below with reference to the drawings. 1 is a front view showing an induction heating apparatus according to Embodiment 1 of the present invention, FIG. 2 is a side view of the induction heating apparatus in FIG. 1, and FIG. 3 is a plan view showing a transport mechanism in the induction heating apparatus in FIG. 4 is a front view of the transport mechanism in FIG. 3, FIG.
FIG. 4 is a side view of the transport mechanism in FIG. 3. 1 to 5, reference numerals 1 and 7 to 12 are substantially the same as the conventional ones, and thus the description thereof is omitted. Reference numeral 13 denotes a pair of frames, a pair of frames made of a non-metallic material, and a plurality of bearing holes arranged at equal intervals. Reference numeral 14 is a plurality of rollers rotatably arranged between the frames 13, 13, 15 is a first gear provided at one end of each roller 14 via the frame 13, and 16 is a respective first gear 15
A second gear arranged between and meshing with the first gear 15,
It is made of a non-metallic material and is rotatably supported by one frame 13. Reference numeral 17 is a sprocket wheel connected to a predetermined first gear 15. The transport mechanism 18 is formed by the above 13 to 17. Further, the driving device 8, the sprocket wheel 9, and the roller chain 10 form a rotational force urging mechanism 19.

Next, the operation will be described. In FIG. 1, the first gear of the conveying device 18 is rotated by the rotational force urging mechanism 19.
When a rotational force is applied to 15, the second gear meshing with the first gear 15
The gears 16 rotate the rollers 14 in the same direction integrally with the first gear 15. Therefore, when the material 12 to be heated is supplied from the conveyor 11 to the conveying device 18, the material 12 to be heated is conveyed by the rotating roller 14 from one end to the other end of the induction heating coil 1 at a predetermined temperature. To be heated. Therefore, when exchanging the induction heating coil 1, if the roller chain 10 of the rotational force urging mechanism 19 is cut off, the transport mechanism 18 can be taken out in the longitudinal direction, so that the induction heating coil 1 can be easily replaced.

Embodiment 2. FIG. 6 is a front view showing an induction heating apparatus according to a second embodiment of the present invention, in which a first gear 15 for urging a rotational force by a rotational force urging mechanism 19 is arranged so as to penetrate the furnace wall. May be reduced in the longitudinal direction.

Embodiment 3. FIG. 7 is a plan view showing a transport mechanism 18 of an induction heating apparatus according to Embodiment 3 of the present invention, in which a rotatable roller 20 is arranged between rollers 14 that rotate integrally with a first gear 15. The material 12 to be heated having a short length may be conveyed.

Embodiment 4. In the above embodiment, the frame 13 and the second gear 16 are made of a non-metallic material to prevent heating, but the rollers 14 and the first gear 15 may be made of a non-metallic material.

[0013]

As described above, according to the present invention, a predetermined space is provided between the pair of frames arranged in the longitudinal direction in the induction heating coil arranged in the longitudinal direction of the furnace. A plurality of rotatable rollers, a first gear provided at one end of each roller, a second gear meshed between the first gears and rotatable, and a first or second gear Since it is equipped with a rotational force biasing mechanism that biases force,
It is possible to reduce the length of the induction heating device in the longitudinal direction, and it is possible to improve the maintainability when replacing the induction heating coil.

[Brief description of drawings]

FIG. 1 is a front view showing an induction heating device according to a first embodiment of the present invention.

FIG. 2 is a side view of the induction heating device in FIG.

FIG. 3 is a plan view showing a transfer mechanism in the induction heating device in FIG.

FIG. 4 is a front view of the transport mechanism in FIG.

5 is a side view of the transport mechanism in FIG.

FIG. 6 is a front view showing an induction heating device according to a second embodiment of the present invention.

FIG. 7 is a plan view showing a carrying device of an induction heating device according to a third embodiment of the present invention.

FIG. 8 is a front view showing a conventional induction heating device.

[Explanation of symbols]

 1 Induction Heating Coil 12 Heated Material 13 Frame 14 Roller 15 First Gear 16 Second Gear 18 Transfer Mechanism 19 Rotational Force Energizing Mechanism

Front page continuation (72) Inventor Tatsuo Kishimoto 8-1-1 Tsukaguchihonmachi, Amagasaki City Mitsubishi Electric Corporation Itami Works

Claims (1)

[Claims] 1. An induction heating apparatus that heats a material to be heated while passing it through an induction heating coil arranged in a longitudinal direction of a furnace, between a pair of frames arranged in the longitudinal direction in the induction heating coil. A plurality of rotatable rollers provided at predetermined intervals, a first gear provided at one end of each roller, and a second gear rotatable between the first gears. And an induction heating device comprising a rotational force urging mechanism for urging a rotational force to the first or second gear.