JPS6384705A - Roll shop - Google Patents

Abstract

PURPOSE:To reduce the number of personnel, the number of the rolls to be constantly preserved and floor spaces and to improve working efficiency by automating respective devices and transporting means in a roll shop and adopting an automatic multi-stage warehouse for rolls. CONSTITUTION:The roll carried into the roll shop by a roll carriage is removed of roll chocks by a roll chock remover 1. The rolls are then carried to an automatic roll warehouse 3 by an NC crane 2 disposed above the chock remover and are stored into the automatic warehouse by the receiving and delivering carriage of the automatic warehouse. The rolls are carried by a crane 4 to a polishing machine and are polished when the rolls' turn for polishing comes round. The rolls after the polishing are stored again in the automatic roll warehouse and wait for their turn of the ensuing works. The rolls are then subjected to dulling of the roll surfaces by a shot blasting machine 6 or electric spark forming machine 7 or chrome plating of the roll surfaces. The rolls are finally taken out of the warehouse and after the roll chocks are mounted thereto, the rolls are sent to respective rolling mills by carriages traveling on rails A-C.

Description

[Detailed description of the invention] [Industrial application field] This invention relates to an automated roll shop.

[Prior art]

Taking the example of a cold rolling roll shop, maintenance work on cold rolling rolls was carried out in the following steps.

Chock removal (roll cooling), grinding, grinding, reuse of chock equipment during dal processing, if necessary.In addition to this large number of steps, it also requires a considerable amount of man-hours for handling between each step. , Automation of roll shops has been promoted for a long time, but although automation within the same device has been achieved to some extent, automation between each device within a roll shop has not progressed much.

[Problem that the invention seeks to solve]

The work processes between each device in the roll shop are automatically connected, and a large space is required.

[Means to solve the problem]

This invention was made in order to solve the above-mentioned problems, and includes a lifting/lowering or warehouse loading/unloading device, a roll polishing or grinding device, and a roll bearing attachment/detachment device in the same building. It provides a pre-sized roll shop. Another embodiment of the present invention is a roll shop in which a roll cooling device is arranged in the multi-stage warehouse.

[Effect]

Rolls delivered to the roll shop using the existing delivery means are unchocked by a roll bearing attachment/detachment device.Then, the rolls with their roll chocks removed are transferred to a loading/unloading device that connects the roll bearing attachment/detachment device to the multi-level warehouse. The products are transported to a multi-tiered warehouse and stored in the multi-tiered warehouse using a transporter inside the multi-tiered warehouse. Thereafter, when it is the turn of polishing (or grinding) for a given rolling cycle, the rolls are taken out of the multi-tiered warehouse using a transporter in the multi-tiered warehouse, and the rolls are transferred between the multi-tiered warehouse and the roll polishing (or grinding) equipment. It is transported to a roll polishing (or grinding) device via a loading/unloading device that ties the material. Polished to a predetermined roll crown and roll polished (or ground)
Once the work is completed, the rolls will be sent to a multi-level warehouse and roll polishing (
The product is transported to a multi-tiered warehouse using a transporter connected to the grinding or grinding device, and then stored in the multi-tiered warehouse using a transporter within the warehouse.

Finally, according to the rolling schedule of each rolling mill, the rolls with a predetermined crown are taken out from the multi-tiered warehouse using a transporter in the multi-tiered warehouse, and then transported to a loading/unloading transporter that connects the multi-tiered warehouse with the roll bearing attachment/removal device. It is transported to the roll bearing attachment/detachment device. After the roll chock is installed in the roll bearing attachment/detachment device, the rolls are sent to the rolling mill using the existing operating means that connects the roll shop and the rolling yard.The work in each process of 0 or more and the transportation work between each process are , everything is controlled by computer, so there is no waiting time for the rolls in the rolling mill, and each roll is processed in the shortest possible time in the roll shop, furthermore, the waiting time for each device in the roll shop is minimized for the whole roll shop. It is managed to be.

Note that a roll cooling device may be provided in the multi-level warehouse to eliminate roll cooling waiting time and space for the cooling device.

〔Example〕

1 to 4 show embodiments of the present invention, and the present invention will be explained in detail with reference to FIG. 1. FIG. In the roll shop, there are rails (A), (B), and (C:) on which roll carts for transporting rolls into and out of the rolling yard run. And on both sides of the rail (B), there is a group of similar devices for metering. Here, one of the rails (B)
, (C) will be explained. The rolls carried into the roll shop by a roll cart are first unchocked by a work roll chock remover (1).The rolls are then removed by an NC (Numerical Control) metered on the chock remover (1).
l) The rolls are transported by a crane (2) to an automated warehouse (3) and stored in the automated warehouse using a receiving and discharging cart (not shown) of the automated warehouse.

A part of this automated warehouse is equipped with a roll cooling device, making it possible to cool the rolls within the automated warehouse. For example, in the case of a cold rolling mill, there is a temperature difference in the temperature of the roll immediately after rolling between the top and the end of the roll body, so if the roll is polished (or ground) in this state, the roll will This is to solve the problem of not being able to maintain a correct roll crown due to thermal deformation when the temperature drops to room temperature.

Of course, polishing (or grinding) may be started after the roll temperature is lowered to room temperature by natural cooling without providing a special cooling device, but in that case, the number of rolls in stock will increase, so it is not a good idea.

After that, when it was the turn to polish, the roll was...

The rolls are transported from the automatic roll warehouse to the polishing machine (5) by the roll grinder NC crane (4) and polished. After the polishing work is completed, the rolls are stored again in the automated roll warehouse.
Waiting for the next work order, then dulling the roll surface using the shot blast machine (6) or electric discharge machine (7), and chrome plating the roll surface using the chrome plating device (8). This is not done for all rolls. These operations are carried out by going back and forth between the roll automatic warehouse and each device, but the N for roll grinder is used as a transportation means for the electric discharge machine.
A C-crane (4) is used, as well as a trolley (8) for the shot blasting machine and a trolley (10) and a trolley (11) for the chrome plating machine. Finally, according to the schedule of each rolling mill, the rolls are taken out from the automatic roll warehouse, and after being fitted with roll chocks using a chock remover, they are moved to rails (A) and (B).

A computer (not shown) controls the movement of a series of devices in the roll shop, in which rolls are sent to each rolling mill by a roll truck running at (C). Shortly and each roll is processed in the roll shop in the shortest possible time, and furthermore, the waiting time in each device in the roll shop is managed so as to be minimized for the roll shop as a whole. Furthermore, each processing device in the roll shop is demonstrating high productivity by reducing the setup time (non-processing time) in each device and eliminating the need for overhead cranes to wait. For this reason,
Compared to conventional roll shops, the number of rolls stocked has been reduced to 3.
I was able to reduce it to 75.

Finally, one embodiment of the roll cooling device (12) is shown in the fourth embodiment.
This will be explained using figures. In FIG. 4, (a) is a plan view of the roll cooling device, (b) is a front view thereof, (c) is a side view thereof, (
d) is a perspective view thereof. The roll to be cooled is first placed on the fork (13). Then the hydraulic cylinder (
10, it is submerged in a water tank (15). The rolls that have been cooled to room temperature in the water tank are taken out from the water tank by the hydraulic cylinder, and transported by the transporter of the automated roll warehouse.
The rolls are stored at a predetermined location in the automated warehouse. Note that the cooling water used for cooling the rolls is circulated through a pump (16) and a cooler (17).

〔Effect of the invention〕

By automating each device and means of transport in the roll shop and adopting an automated multi-level warehouse for rolls, we are able to reduce the number of staff in the roll shop, reduce the number of rolls on hand, and provide a large space for storing rolls. ■ Setup time with roll processing equipment (1 time when not processing)
iJf) can be significantly reduced. ■The space of the roll shop becomes more compact, and it is possible to provide a roll shop with high productivity per unit area. ■Since work in the roll shop where work efficiency is uncertain is eliminated, there is no need for a temporary roll storage area around the rolling mill, there is no risk of regrinding due to changes in the rolling cycle, and there is no need to wait for rolls at the rolling mill. do not have.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view of an embodiment (2) of the present invention, Fig. 2 is a layout of embodiment (2), (a) is a plan view, (b)
) is a front view, and (c) is a side view. FIG. 3 shows the layout of Example (2), in which (a) is a plan view, (b) is a front view, and (C) is a side view. FIG. 4 shows a roll cooling device of the present invention, in which (1) is a plan view, (b) is a front view, (c) is a side view, and (d) is a perspective view thereof. A, B, C...Rail, l...Chock remover (
Roll bearing attachment/detaching device), 2... NC crane for chock remover, 3... Automatic roll warehouse 5... Polishing machine, 6... Shot blasting machine, 7... Electric processing machine, 8-... - Chrome plating equipment, 9... Cart for shot blast machine, 10, 11... Cart for chrome plating equipment 12... Roll cooling device, 13... Fork, 14 cylinder, 15... Water tank, 18 ...Pump, 17...Cooler.

Claims (2)

[Claims] (1) A multi-tiered warehouse with transport equipment that moves up and down and runs horizontally within the same building, a transport equipment for carrying in and out of the multi-tiered warehouse, a roll polishing or grinding device, and a roll bearing attachment/detachment device. Features a roll shop. (2) The roll shop according to claim (1), characterized in that a roll cooling device is arranged in a multi-level warehouse.