JPS59130655A - Automatic grinder - Google Patents

Abstract

PURPOSE:To produce continuously a thin plate having a good surface in a device for charging a molten metal into a rotating roll and cooling quickly said metal to form the thin plate by grinding automatically the surface of the rotating roll under charging of the molten metal thereon. CONSTITUTION:The molten metal 2 in a high-frequency heater 1 is charged from a nozzle onto a water-cooled rotating roll 4 and is quickly cooled to a thin plate 12 which is coiled on a coiler 6. An automatic grinder 5 is provided on the surface of the roll 4 and keeps grinding the surface at all times. The grinding cloth 16 in the grinder 5 is kept in contact with the roll surface 4 under the specified pressure by rollers 13 and a pad 14 and is taken up on the right and left at all times with a take-up drum 17. The surface of the cloth 16 is kept rubbed with an oscillating brush 15 at all times to remove clogging and swarf is sucked out by a duct 20. Since the roll surface 4 is always smoothed and cleaned, the welding of the molten metal on the roll 4 does not arise and the thin plate is maintained in the good surface condition.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a thin sheet metal manufacturing apparatus, and more particularly to an automatic modifying apparatus for modifying a roll surface on-line.

[Prior art]

Since the products manufactured using thin sheet metal manufacturing equipment are thin plates with a thickness of approximately 30μ, scratches caused by the nozzle and scratches caused by the molten metal balls remain on the roll surface that comes into contact with the molten metal.
It is not possible to continue manufacturing thin sheets at all. For this reason, it is necessary to constantly grind the roll surface. Conventionally, products could not be manufactured continuously for long periods of time because the rolls had to be stopped and grinding was done manually or the rolls were ground off-line. In addition, not only does grinding after discontinuing production reduce the operating rate, but when grinding is done manually, it is not possible to grind a certain amount in the circumferential direction of the roll surface, and it is not possible to grind a certain amount in the roll axis direction. , distortion on the roll periphery (eccentricity)
I can do it. Additionally, due to the formation of a crown on the roll surface, there was a problem in that the thickness of the product became uneven.

Grinding offline not only reduces the operating rate, but also requires time and money to adjust the nozzles, sensors, etc. installed in the roll mill 9 when reassembling the roll metal.

[Purpose of the invention]

An object of the present invention is to provide an automatic grinding device that can operate continuously and stably for a long period of time by providing an automatic grinding device that grinds rolls uniformly during sheet metal manufacturing. be.

[Summary of the invention]

The main point of the present invention is to stably manufacture thin sheet metal continuously over a long period of time by providing an automatic grinding device.

[Embodiments of the invention]

The present invention will be explained using FIGS. 1 to 3.

The sheet metal manufacturing apparatus includes a high-frequency heating device 1 that melts almost all of the metal, a nozzle 3 that supplies molten metal 2 to a roll 4, a roll 4 that cools the inside with water, etc., and a sheet metal 12 that is manufactured by this roll. Winding machine 6. It consists of an automatic grinding device 5 for grinding the surface of the roll 4, and sensors 7.8 and 9.10 for sensing the thickness of the thin plate, the gap between the nozzle 3 and the roll 4, the displacement of the surface of the roll 4, and the temperature.

The molten metal 2 melted by the high-frequency heating device 1 is supplied from the nozzle 3 to the surface of the roll 4, and is rapidly cooled to form a thin metal sheet (thickness 3
(approximately 0μ), the winder 6 continuously winds the film. During manufacturing, if the surface of the roll 4 is scratched by the nozzle 3 or scratched by the pressure of the molten metal, the product will be a thin plate with holes, υ, and the thickness will not be uniform, so the surface of the roll 4 will need to be ground. .

This grinding is done without stopping the roll 4 online.
Since it has to be done continuously for a long time, one winder 6 is required.
An automatic grinding device is installed between the metal sheet 12 and the nozzle 3 to grind the surface of the roll 4 at the same time as manufacturing the sheet metal 12.

The automatic grinding device uses two touch rollers 13 and full springs 19 to press against the surface of the roll 4, so that
A constant tension force of the grinding cloth 16 acts on the roll surface,
Grind the roll 4.

Similarly, the roll 4 is ground by the pressing force of the pad 14 via the grinding cloth 16. By the pressing cylinder 18,
The spring 19 is bent to apply a predetermined pressing force to the touch roller 13 and pad 14. Adjustments are made using the liner 22 in order to produce a predetermined pressing force in accordance with changes in the outer diameter due to modification of the roll 4. Since the material of the roll 4 is copper-based and the circumferential speed of the roll 4 is as high as 30 to 4 Qm/s, clogging of the grinding cloth is severe. In order to prevent a reduction in grinding performance due to clogging of the grinding cloth, the electric motor 22 takes up all of the grinding cloths 16 on 92 sets of grinding cloth take-up drums 17, thereby repositioning the clogged grinding cloths. Since the abrasive cloth wound on the winding drum 17 is reused after being reused, the abrasive cloth is dressed with the brush 15. Grinding cloth 1
In order to prevent uneven contact of the shift cylinder 21
The entire grinding device is side-shifted in the axial direction of the roll. Hood 2 to prevent grinding powder from adhering to the surface of roll 4.
0 surrounds the grinding part, and the dust collector 11 sucks out the grinding powder.

〔Effect of the invention〕

According to the present invention, by using an automatic roll grinding device, continuous and stable sheet metal production can be performed.

[Brief explanation of drawings]

FIG. 1 is a mechanical diagram of the thin sheet metal manufacturing apparatus of the present invention, FIG. 2 is a detailed view of the automatic grinding apparatus of the present invention, and FIG. 3 is a sectional view of the automatic grinding apparatus of the present invention. 4... Roll, 5... Automatic grinding device, 12... Thin sheet metal, 16... Grinding cloth. Funeral diagram 7-323- Funeral diagram 3

Claims (1)

[Claims] 1. Pouring molten metal from a nozzle onto the surface of a rotating roll,
In a sheet metal manufacturing apparatus that manufactures a thin sheet by cooling and solidifying on the surface of the roll, an abrasive cloth is entirely directly applied to the surface of the roll during manufacturing of the sheet metal. An automatic grinding device characterized in that the surface of the roll is automatically ground online by rotation of the roll.