JPS61176088A - Heater for material to be heated - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a heating device for a heated material that uses a heating coil to heat a heated material placed on a belt that is moved from one side to the other. be.

[Conventional technology]

In warm forging, a lubricant is often applied to the surface of the material to be forged in order to reduce friction between the press die and the material to be forged. A solution of silaphite is usually used as a lubricant, and since it takes time for the silaphite solution to dry just by applying the silaphite solution to the billet surface, the material to be forged (hereinafter referred to as the billet) is heated using an induction heating coil.
After heating to t~200'C, a taraphite solution is applied and dried by the internal heat of the billet.

Figure 2 is a cross-sectional view of a conventional heating device. Chain sprocket (4) is the movement axis of the chain sprocket.

+51Vi solenoid induction heating filter, (6) is a lubricant applicator, and (lb) is a billet coated with lubricant. Note that the chain conveyor (2) is placed so as to pass through the induction heating coil (6) and the lubricant applicator (6).

Next, the operation will be explained. Chainlets (1 m) Y'i are supplied one by one at a predetermined interval from the left end in the figure of the chain conveyor (2). The chain conveyor (2) is moved in the direction of the arrow shown in the figure by rotation of a chain sprocket: 3) attached to a movement shaft (4). Billet (1a)
While riding on the chain conveyor (2), it is heated to about 150°C to 200°C by an induction heating coil (6), and is then coated with lubricant as it passes through a lubricant applicator (6). Billet (1b) coated with lubricant
The lubricant solution on the surface of the billet is then dried by evaporating moisture due to the internal heat of the billet.

[Problem that the invention seeks to solve]

The conventional heating device for a heated material is configured as described above, so when the billet (1a) passes through the induction heating coil (6), the electromagnetic force generated from the induction heating coil (6) 1a), the induction heating coil j51
A phenomenon may occur in which the billet (1 &) stops at the exit of the pipe. This phenomenon is an electromagnetic force that acts to pull the billet (11) into the heating coil (5) when the billet (1 m) attempts to exit from the induction heating coil (5). The electromagnetic force is strong and the billet (
1&) and the chain conveyor (2), the billet (1a) stops and is drawn into the heating coil (5). For this reason,? When the continuous billet (1α) stagnates and contacts the virtual billet (1a), the friction force between the billet (1a) and the chain conveyor (2) becomes larger than the IE electromagnetic force, and multiple billets (l&) are joined and sent on the chain conveyor (2) to the next process, lubricant coating equipment 'ff61. The lubricant is applied to the outer periphery of the billet (11), so when multiple billets are joined, the billet (1 &
) The lubricant application on the end face is incomplete. Because of this, there is a problem that it is difficult to process the forging smoothly.

This invention was made with the intention of solving the above-mentioned problems, and the lubricant can be applied all around the billet without causing the billet to stagnate due to the electromagnetic force acting from the induction heating coil. The purpose is to obtain an induction heating device.

[Means for solving problems]

A device for heating a material to be heated according to the present invention includes a billet, that is, a belt for transporting the material to be heated, and a plurality of billets arranged at intervals such that the material to be heated can be placed on the belt to prevent the material to be heated from moving in the opposite direction to the moving direction of the belt. A movement prevention member is attached.

[For production]

The heating device for the material to be heated in this invention uses a member attached to the conveyor to move the heating material even when an electromagnetic force acts to draw the billet into the heating coil when the material to be heated passes through the induction heating coil. Since it hits the prevention member and is sent to the next process together with the movement prevention member, the material to be heated is sent to the next process with a predetermined interval.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, fll-(6) is the same as the conventional one.

()) are movement prevention members attached to the chain conveyor (2) at predetermined intervals. This movement prevention member (
7) is attached to the entire circumference of the chain conveyor (2), and the spacing between the legs is such that the billet (1 m) can fit between the movement prevention members (7).

Next, the operation will be explained. The billet (IS) is located at the left end of the chain conveyor (2) in the illustration.
) is placed between the movement prevention members (7) attached to each pongee. The chain conveyor (2) is moved in the direction of the arrow shown by the rotation of a chain sprocket (3) attached to a movement shaft (4). The billet (1m) is placed on top of the Chain Koshi Bear +21 and heated by the induction heating coil (6).
It is heated to about 150°C to 200°C. When the billet (11) tries to go out from the heating coil (5), an electromagnetic force that tries to pull it into the heating coil acts, and the billet (l&) moves on the chain conveyor (2). (1m) is attached to the movement prevention member (7),
It moves together with the movement prevention member (7) and is sent to the next step, a lubricant coating device, to form a billet (1b) coated with lubricant all around, including the end face portions of the billet (la)li.

〔Effect of the invention〕

As described above, according to the present invention, billets are prevented from coming into close contact with each other because a movement preventing member is provided on the chain conveyor to prevent billets from moving in the opposite direction to the direction of movement of the conveyor in cooperation with the conveyor. Also, applying lubricant to the end face of each billet has the effect of increasing the strength of the billet.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a heating device for a heated material according to an embodiment of the present invention. FIG. 2 is a sectional view showing a conventional heating device for a heated material. In the figure, fil I′i heated material, +21 t: I conveyor, (5) heating coil,
(61d is a lubricant application device, (7) is a movement prevention member. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] A lubricant for placing a heated material on a belt that passes through a heating coil and moving from one side to the other, heating the heated material with the heating coil, and applying a lubricant to the heated material. In the apparatus equipped with a coating device, a plurality of movement prevention members are installed on the belt at intervals such that the material to be heated can be placed thereon to prevent the liquid heating material from moving in a direction opposite to the moving direction of the belt. A heating device for a heated material, characterized by: