JP2002086247A - Method and device for peeling off steel block in cast iron machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for picking off a steel block from a mold in an iron casting machine for producing the steel block by pouring the molten steel into the mold. SOLUTION: A fitting table 12 is fitted so as to be adjustable to the position, to a frame 11 arranged at the end part of a mold conveyor. On the fitting table 12, one pair of cams rotatively driven with a motor 13, are pivotally supported and shifted in the phases and following tips 19 arranged at the upper end of a lever 18 are engaged with the respective cams and the lever 18 is shaken by rotating the cams 17. At the lower side part of the lever 18, a fitting metal tool 22 is pivotally supported, and the fitting metal tool 22 has strikers 21a, 21b at both ends and forms as a balancing toy. Then, the strikers 21a, 21b mutually hit the side edge parts of the steel block in the mold 20 by shaking the lever 18, and the steel block in the mold is picked off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for peeling a steel ingot from a mold in a cast iron machine for producing molten steel by pouring molten steel into a mold.

[0002]

2. Description of the Related Art A cast iron machine generally comprises a mold conveyor in which a flat plate-shaped mold 2 is mounted on each link 1a of a chain conveyor 1 as shown in FIG. The molten metal in the mold is poured into the mold 2 moving at a high speed, and then the molten steel in the mold is cooled by cooling water injected from the nozzle 4, and then the steel ingot 5 is molded at the conveyor end.
The steel ingot is separated and dropped, and the dropped steel ingot is collected by a receiving box 6 held by a dump truck or a forklift waiting at the end of the conveyor.

[0003] Another conveyor is arranged under the chain conveyor 1 in parallel with the chain conveyor 1, or another conveyor is arranged at the end of the chain conveyor 1 at right angles to the conveyor 1, and the steel ingot dropped from one end of the chain conveyor 1 There is also known one that takes it to a required location and collects it there.

The above-mentioned mold 2 is lined with a refractory, but the refractory has a rough surface as the mold is used for a longer period of time, and the surface becomes uneven. Even when it reaches the end of the conveyor, it may not come off from the mold. Even if the steel ingot attached to the mold does not fall at the end of the conveyor, it usually falls downward and moves backwards, while falling off the mold due to the vibration of the conveyor, but a dump truck or receiving box is placed at the end of the conveyor When the steel ingot is to be collected at the end of the conveyor by disposing the conveyor at right angles, the steel ingot cannot be collected unless the steel ingot is separated from the mold at the end of the conveyor. Therefore, conventionally, a worker is arranged at the end of the conveyor, and when the steel ingot does not separate from the mold, the steel ingot is hit with a metal rod or a tool.

[0005]

SUMMARY OF THE INVENTION The present invention aims at automating the above-mentioned operation, which has been conventionally performed by an operator, to save labor. For this purpose, a steel ingot in a mold is beaten at the end of a mold conveyor. A first object is to provide an apparatus for peeling a steel ingot from a mold by using the apparatus, and a second object is to provide a method for reliably removing a steel ingot from a mold by the apparatus.

[0006]

The invention according to claim 1 relates to an apparatus which achieves the first object, and in a cast iron machine for producing molten steel by pouring molten steel into a mold of a mold conveyor, a cast iron machine comprising: A striker is arranged, and the striker is periodically rocked or reciprocated linearly by an operating means to strike the steel ingot in the mold at the end of the conveyor, thereby giving a hit.

[0007] According to the present invention, the steel ingot in each mold is hit once or several times by the striker, whereby the steel ingot is exfoliated.

The operating means used in the present invention may be any mechanism or device that periodically swings or reciprocates the striker. There is no particular limitation. For example, a crank that rotates by power may be used. And a mechanism including a cam that rotates or reciprocates linearly by power.

The striker may strike the center of the steel ingot in the mold, but preferably the left and right and / or front and rear side edges of the steel ingot. Striking the side edge of the steel ingot rather than the center of the steel ingot allows the steel ingot to be more reliably separated.

[0010] The invention according to claim 2 has been made in view of such a point, and in the invention according to claim 1, the striker is arranged so as to be able to strike the left and right and / or front and rear side edges of the steel ingot. It is characterized by the following.

The invention according to claim 3 relates to a method for achieving the second object, and uses a device according to claim 2 to strike a steel ingot with a timing shifted by a striker arranged left or right or back and forth. It is characterized by doing so.

According to the present invention, the steel ingot can be peeled off more reliably by hitting both side edges of the steel ingot with shifted timing.

According to the present invention, in order to strike a steel ingot with a striker at both edges by shifting the timing,
The operating means may be individually provided for each striker, and the strikers may be operated individually and independently, or the strikers on both side edges may be operated using a common operating means. In the latter case, for example, a striker is provided at both ends of a lever pivotally supporting an intermediate portion to form a Yajirobei, and when one striker strikes a steel ingot, a mechanism that jumps up and the other striker strikes the steel ingot,
In the above-described mechanism including the crank lever mechanism and the cam, a mechanism in which the phases of a plurality of cranks and cams driven by a motor are shifted may be employed.

[0014] The invention according to claim 4 is the invention according to claim 1 or 2.
The invention according to the item (1), characterized in that a striker's impact force on the steel ingot can be adjusted.

According to the present invention, by adjusting the impact force and hitting with an appropriate impact force, the steel ingot can be reliably separated.

In order to adjust the impact force, for example, when the above-mentioned crank lever is used as the operating means, the amount of swing of the lever is changed by changing the length of the crank, or the length of the link connecting the crank and the lever is changed. It is good to shift the phase of the lever swing range without changing the lever swing amount.When using the mechanism including the above-mentioned cam as the operating means, the cam position is displaced to change the lever swing range. Should be shifted.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will now be described with reference to FIG.
It will be described based on.

A mounting base 12 is mounted on a frame 11 provided at the end of the molding conveyor 10 so as to be able to adjust the position in the left-right direction of FIG. 2, and a motor 13 and a bearing 15 of a rotating shaft 14 are mounted on the mounting base 12. Installed. The rotating shaft 14 supported by the bearing 15 is driven to rotate by a motor 13 via a chain transmission mechanism 16, and cams 17 are attached to both ends of the rotating shaft 14 at positions corresponding to the side edges of the mold 20 with a phase shift. (Only one cam 17 on the near side is shown in the figure, and the rear cam is not shown.)

The lever 18 is formed in an inverted shape.
Constitutes operating means together with the motor 13 and the cam 17,
At its upper end, there is a follower 19 that engages with the cam 17, and at its lower side, a long and short striker 21a with a sharp tip is provided.
A mounting bracket 22 in which the mounting members 21b are mounted at predetermined intervals in the left-right direction is pivotally supported to form a Yajirobei shape. In the figure,
Reference numeral 24 denotes a balance weight fixed to the upper end of the lever by protruding laterally.

The present embodiment is constructed as described above, and each time the cam 17 makes one rotation, the lever 18 swings and one of the pair of strikers 21a and 21b is moved in the direction of the arrow in FIG. Tap the side edge of the ingot. Then, one striker striking the steel ingot by the recoil jumps up, and the other striker strikes another portion of the side edge of the steel ingot. Since the front side cam and the rear side not illustrated cam 17 in the figure are shifted in phase, the front side striker and the rear side omitted striker strike the steel ingot with shifted timing.

When the impact force on the steel ingot is weak,
Adjust the mounting position of 2 to the left in the figure. As a result, the swing range of the lever 18 shifts in the counterclockwise direction, and the strike start positions of the strikers 21a and 21b are displaced downward to increase the strike force.

[0022]

According to the first aspect of the present invention, the operation of peeling the steel ingot from the mold can be automated with a simple apparatus of a striker and a working means, and an operator is arranged for automation of the work. There is no need and labor is saved.

According to the second aspect of the present invention, the side edge of the steel ingot is beaten, whereby the steel ingot can be reliably separated from the mold.

According to the third aspect of the invention, the different portions of the side edges of the steel ingot are beaten at different timings, whereby the steel ingot can be more reliably peeled off.

According to the fourth aspect of the invention, it is possible to adjust the strike force of the striker.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a cast iron machine.

FIG. 2 is a front view of a peeling device according to the present invention.

[Explanation of symbols]

 10. Mold conveyor 11, Frame 12, Mounting base 13, Motor 14, Rotary shaft 15, Bearing 16, Chain transmission mechanism 17, Cam 18, Lever 19, Follower 20, Mold 21a, 21b Striker 22 Mounting bracket 24 Balance weight

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takeshi Yoshikawa 4976 Nomura Minamicho, Shinnanyo-shi, Yamaguchi Nisshin Steel Corporation Shunan Steel Works (72) Inventor Sotsuo Yamaguchi 1-3-2 Chuo, Kure-shi, Hiroshima Inside Shinko Kiki Co., Ltd. (72) Inventor Norimitsu Kusunoki 1-3-2 Chuo, Kure-shi, Hiroshima Prefecture Inside Nisshinki Koki Co., Ltd. (72) Inventor Taketoshi Fujita 1-3-2 Chuo, Kure-shi, Hiroshima Pref. Inside Nisshin Koki Co., Ltd. (72) Inventor Masahiro Mori 1-2-3 Chuo, Kure, Hiroshima Prefecture Nisshin Koki Co., Ltd.

Claims (4)

[Claims] In a cast iron machine for producing molten steel by pouring molten steel into a mold of a mold conveyor, a striker is arranged at the end of the conveyor, and the striker is periodically rocked or reciprocated linearly by operating means. A steel ingot in the mold at the end of the conveyor by tapping and hitting. 2. The steel ingot stripping device according to claim 1, wherein the striker is arranged so as to be able to strike the left and right and / or front and rear side edges of the steel ingot. 3. A method for peeling a steel ingot in a mold by using the steel ingot removing apparatus according to claim 2, wherein the steel ingot is beaten at a different timing by strikers arranged right and left or front and rear. A method of peeling a steel ingot, characterized in that: 4. The apparatus for stripping steel ingots according to claim 1, wherein the striker's impact force on the steel ingots can be adjusted.