JPS58116902A - Device capable of performing skin pass rolling and leveling of material to be worked selectively or successively continuously - Google Patents

Abstract

PURPOSE:To permit selective or successive and continuous skin pass rolling and leveling of a material to be worked by installing both roll units for skin pass and levelers in series between two winders and using said units continuously or selectively. CONSTITUTION:A mill roll unit 3 and a leveler roll unit 6 are installed in series between two winders 1 and 2. The unit 3 has >=2 pieces of mill rolls 3a, 3b, and the unit 6 has a backup roll 8 and a pass line roll 9 in addition to >=3 pieces of leveler work rolls 7. Either one of the units 3, 6 is held free by opening the same above and below or both units 3, 6 are used continuously. In this case, the need for exchanging the units 3, 6 is eliminated; therefore, the working efficiency is improved. Skin pass rolling and leveling such as stress relieving are accomplished in one stage by the continuous use of both units.

Description

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, the functions of a skin pass mill and a tension repeller can be performed selectively or continuously. The present invention relates to an apparatus that can selectively or continuously perform temper rolling and straightening of a workpiece such as a strip.

In general, there is one typical structure of a skin noggus mill as shown in FIG. 1, for example. This skin pass mill has two width/dir 1.2 and two mill/work rolls 3a provided vertically opposite to each other between the wine goos 1 and 2.

The workpiece 4 consisting of wine goo 1.2 & stretcher strain or remove the stretcher strain.
It has become. 5a and 5b are hateflexorol. In addition, the total length of the skin pass mill is approximately 4 to 5 m in normal use.

Some have backup roles.

On the other hand, although not shown, a typical structure of a tension repeller includes, for example, two winders, two sets of tension roll systems each having three or four priddle rolls provided between these winders, and these winders. It consists of a work roll system with five repeller work rolls installed between the tension roll systems, and tension is applied to the workpiece by the tension roll systems on both sides.

The workpiece is drawn between the repellers and work rolls arranged in a staggered manner in two rows, upper and lower, and is alternately bent in opposite directions several times to return it to a flat state.

The structure eliminates local strain by uniformly distributing stress. The total length of the tension leveler is normally about 11 to 12 square meters, and if a cutting/bathing device and the like are further incorporated, the total length becomes about 15 meters. Therefore, since the tension leveler is more than twice the size of the skin pass mill, its production cost is significantly greater than that of the skin pass mill, and moreover, a large installation space must be secured.

By the way, the main purpose of the skin pass mill is to create gloss on the surface of the workpiece and adjust its hardness, and as an incidental effect of the skin pass mill, it also has the effect of improving flatness to some extent. , a sufficient corrective effect to improve the flatness cannot be expected with this SKINOSOS. On the other hand, the purpose of a tension leveler is to eliminate local distortion of the workpiece and improve its flatness.

Due to this difference in usage, the diameter of the work roll of the skin grinding mill is 500 to 800 mm.

There is a major difference in that the diameter of the tension leveler work roll is 30 to 70 cm. Moreover, whereas a tension leveler attempts to straighten the workpiece by applying large tension to both sides of the workpiece and reversing the bending direction several times.

The skin pass mill rolls the workpiece by applying light pressure to improve gloss, etc., and does not require a large amount of tension. Therefore, there is a major difference between the two devices in terms of their structure, such as the magnitude of the required driving force between the two devices.

For these reasons, in the past, there was no idea of configuring a skin pass mill and a tension leveler into one device in a device that only had a wine tarsi. Therefore, when a skin pass mill has a tension leveler but not a tension leveler, a new tension leveler must be installed when trying to improve the flatness of a workpiece. However, as mentioned above, tension levelers not only cost a lot of money to manufacture, but also take a long time to manufacture, and also require a large installation space, which poses a huge economic burden. was there.

The inventors have come up with this invention in view of the above-mentioned problems, and have created a unit for the leveler roll portion of the tension leveler by using the existing skin pass mill, and combined this leveler roll unit with the skin path. The skin can be made completely interchangeable with the mill roll unit, or by installing two roll units in series, with one device.

Either the Smil function or the tension leveler function can be selectively exerted, or.

To enable both functions to be performed one after another.

That is, the purpose of these inventions is to provide a device that can selectively perform either the function of a skin pass mill or the function of a tension leveler, or can perform both functions continuously. Another object of the present invention is to provide a device that can also be used as a tension leveler using an existing skin pressure mill.

As shown in FIGS. 2 to 6, these inventions include a skin log mill roll unit 3 having two or more mill rolls 3a and 3b, and a repeller workpiece having three or more mill rolls 3a and 3b. Repeller roll unit 6 having a roll 6
and'&(#l, both o-ru units 6, 6 are selectively and replaceably installed between two winders 1.2. The specified invention is a device capable of selectively or sequentially performing skin pass rolling and straightening, and includes a skinless mill roll unit (3) having two or more mill rolls 3a, 5b, and a repeller workpiece having three or more mill rolls 3a, 5b. Repeller roll unit 6 with roll 6
A one-car roll unit 6゜6 is installed in series between the two wine goos 1.2.

and a combined invention of a device capable of selectively or successively performing temper rolling and straightening of a workpiece material, characterized in that the devices are used in conjunction or selectively. Provided as.

Examples of these inventions will be described below with reference to the drawings.

Figure 2 shows one embodiment of these inventions.
In the figure, 1 and 2 are winders, and a mill roll unit 3 is removably installed between these winders 1 and 2. Mill roll unit 3 has two mill work rolls! 1a*5b, and a frame 3C that vertically faces these mill work rolls 3a and 6b and supports them immovably in the running direction. 5a and 5b are deflector rolls.

Further, 6 is a leveler roll unit, and this leveler roll unit 6 has five leveler work rolls 7 arranged in two rows, three on top and two on the bottom (so-called staggered shape), and In order to prevent these repeller work rolls 7 from bending and breaking, there are five backup rolls 8 attached to the outside of these rolls, one pass line roll 9 installed below, and these rolls. It consists of a frame body 10 that rotatably supports an angle of 7°8.9.

Only the slotted line roll 9 is lined with a soft material (for example, urethane foam), all other rolls are made of steel, and the leveler/work roll 7 is hardened to make it sufficiently hard.

More specifically, the repeller roll unit 6 has a configuration as shown in FIGS. 3 and 4.

That is, the frame body 10 consists of an upper frame body 11 and a lower frame body 12, and the upper frame body 11 includes one leveler work roll 7, one Nonotsukatsuzo roll 8, and one set of metal 3. One set of roll assemblies is mounted immovably in the vertical direction, respectively. Both ends of the leveler/work roll 7 and the knock-up roll 8 that constitute the roll assembly are rotatably supported by a holder IF) K via bearings (not shown), and this holder 15 is Frame body 11
Fixed.

In addition, the lower frame body 12 includes two roll assemblies including one repeller work roll 7 and one nonotsukuatsuzo roll 8, and one nogushi line roll 9. Each is installed so that it can be raised and lowered in the vertical direction. Both ends of the leveler ``work roll'' 7 and the work roll 8 that constitute this roll assembly are rotatably supported by the holder 16 via bearings 13 and 14, respectively. The i-line roll 9 is also rotatably supported by a holder 17rc' via a bearing (not shown), and
, '”C% a Nill assembly and pass line roll 9 are held by the lower frame body 12.' ゛ □ '
``The lower roll assembly and the pass line roll 9 are lifted and lowered by means of a support base 1 that supports the holder 16 straddling 17.
8, two carrier pieces 19, 2.0 that support both sides of the lower surface of this support base 18, and each carrier piece 19, 20 has internal threads that are restricted in axial movement and that are opposite to each other. with two nuts 21.22.

It consists of a threaded shaft 26 having two externally threaded portions 23a and 23b with opposite rotational directions, which are screwed into these nuts (21, 22), and a base 24 on which the carrier pieces 19, 20, etc. are placed.゛Slopes 18a and 18b are provided on both sides of the lower surface of the support stand 18, with the outer side raised and inclined in opposite directions.
The upper surface of the carrier piece 19.20, which has a matching slope, is in contact with these slopes 18a, 18b. And the lower surface of the carrier piece 19.20.

Base 24 'K yt? Lie 5 seat 2 fixed with bolt 25
furthermore on the carrier piece 19.20.

Through holes 19a and 2[1a are provided to pass through this in the horizontal direction, and the screw shaft 23 is inserted through these through holes 19a and -2Oa and built-in nuts 21 and 22. A midway portion in the axial direction of the screw shaft 26 and an end portion on the side having the rotating head 23c are connected to a bearing piece 27.2 fixed to the base 24.
It is rotatably supported by 8. One of the bearing pieces 27 is fitted into a notch 18c provided on the lower surface of the support base 18, and this bearing piece 27 serves as a guide for the support base 18 when moving up and down. 29 is a ring coupled to the screw shaft 23 with a pin, thereby preventing the screw shaft 26 from moving in the axial direction. 30, 31, and 32 each indicate a bottle, 36 indicates a sealing material, and 34 indicates a stop ring.

In this way, a spanner or the like is fitted to the first head 26c, and the screw shaft 26 is tightened.
When the threaded shaft 26 is rotated, the movement of the threaded shaft 26 in the axial direction is restricted, so each male threaded portion 23a.

Nuts 21 and 22 that are screwed into 23b are close to each other or separated from each other. As a result, the carrier pieces 19.20 are pushed by the respective nuts 21.22 and moved toward or away from each other, so that the slope 18a is formed on the carrier pieces 19.20.

The support base 18 with which 18b is in contact moves up and down, and therefore.

The lower roll assembly and Nox line row 9 move up and down. A suitable intermesh can be set by such lifting means.

In addition, 65 shown in FIG. 3 is an outer frame body, and this outer frame body 6
A leveler roll unit 6 is inserted into the barrel 5. Therefore, the external dimensions of the skin log mill roll unit 3 are formed similarly to the leveler roll unit 6.

Next, the effect will be explained.

First, if you use this device as a skin pass mill.

At this time, the skin pass mill roll unit 3 is inserted into the outer frame 65 and set to the state shown in FIG. Mill work roll 3a #6 facing vertically
The workpiece 4 passed through the gap b to the winders 1.2 on both sides is wound alternately (or one of them) by driving one winder 1.2, while the mill work rolls 6a, 6
In step (b), light pressure is applied to cold-roll the steel sheet to, for example, adjust the hardness of the cold-rolled steel sheet after annealing, remove stretcher strain, and improve surface gloss.

On the other hand, when using one device as a tension leveler, the skin/mismill roll unit 3 is attached to the outer frame 6.
Take it out from 5 yen, then remove it from the 4 roller unit 6.
is inserted into the outer frame body 65.

And, similar to the effect in the case of the skin pass mill mentioned above,
The workpiece 4 is passed through the gap between the leveler and work rolls 70 to the winders 1.2 on both sides, and
．． 2 and winding the workpiece 4 alternately (or one side), the workpiece 4 is alternately bent into a waveform in the opposite direction by the leveler work roll 7, returned to a flat state, and then sent out to uniformize the stress. By dispersing the force, it is possible to eliminate local distortion of the plate and improve the flatness of one surface.

The experimental results using this tension leveler are shown in Table IK. As is clear from the above experimental results, we were able to obtain a significantly greater straightening effect than originally thought. Moreover, as shown in the graph in FIG. j) was smaller than Therefore, since the drive devices for the winders 1 and 2 need be small, an increase in equipment costs can be kept to a minimum, and the power consumption is also small, contributing to energy saving measures. Furthermore, good results were obtained even when the unit tension was low, even though problems such as one winding failure and a decrease in flatness, which were originally expected when five windings were made, were resolved.

# by using iron spool or paper cushion etc.
It became clear that this was not a problem at all.

In this embodiment, the mill work roll 6a.

6b, leveler e work roll 7, knock-up roll 8, and pass dry roll 9 are all rotatable and used as idler rolls, but among these, skin pass rolls 3a and 3b are driven Of course, the device may be connected and used as a drive roll.

FIG. 6 shows another embodiment of the invention.

This example is between two wine goo 1.2.

The mill roll unit) 3 and the leveler roll unit 6 can be installed in series, and one roll unit 6.6 can be used continuously, or one of the roll units 6.6 can be opened up and down to create a free It is designed to be used as a state.

According to this embodiment, since there is no need to replace both roll units 6.6, one work efficiency can be greatly improved, and by continuous use of one roll unit 6.6,
There is an effect that heat treatment and correction processing such as strain relief can be performed in one step.

Note that 66 is a deflector roll, and by using this, vibration of the workpiece 4 can be suppressed. The other configurations are the same as those in the previous embodiment.

As explained above, according to these inventions, the function of the skin pass mill and the function of the tension leveler are
It has been possible to provide a device that can selectively perform one of the functions or can perform both functions one after another. Therefore, due to their different uses and functions, the skin pass mill and tension leveler, which were previously expensive and required a large amount of installation space, have been replaced.
It was possible to configure it into one device, and the entire device could be made compact. In addition, the conventional skin pass mill can be used as a tension leveler by making slight improvements, so the equipment cost is not very high, and since the unit tension is low, it is economical because it requires less electricity. We were able to provide this equipment.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram of a conventional skin pass mill. FIG. 2 is a schematic explanatory diagram showing one embodiment of these inventions, FIG. 3 is a central vertical sectional view showing an example of a repeller roll unit according to these inventions, and FIG. M enlarged sectional view, FIG. 5 is a graph showing an example of the relationship between unit tension and plate thickness when the same 4-roller roll unit is used.
FIG. 6 is a schematic explanatory diagram showing another embodiment of these inventions. 1.2 is a winder, 3 is a mill roll unit, 3a
*3 b'ri Mill work roll (mill roll). 4 is the workpiece material, 5a, sb, sb are deflector rolls,
6 is a leveler roll unit), 7 is a leveler work roll, 8H Nonotsukuatsuzo roll, 9 is a pass line roll, 10 is a frame body, and 11 is an upper frame body. 12 is the lower frame body% 15, 16.17 is the holder, 18 is 1 support, 19.20 is the carrier piece, 21.22 is the nut,
\23 is the screw shaft, 24 is the base, 27.28 is the bearing piece, 3
5 is an outer frame body. −

Claims (2)

[Claims] (1) A skin pass mill roll unit with two or more mill rolls and a leveler roll unit with three or more leveler work rolls, and one roll unit is installed between two winders. 1. A device capable of selectively or successively successively performing temper rolling and straightening of a workpiece, characterized in that the device can be installed to be replaceable on the machine. (2) A skin mill roll unit with two or more mill rolls and a leveler roll unit with three or more flat and work rolls, and a single roll unit is connected in series between two wine rolls. selective vci*R process of temper rolling and straightening of the workpiece, characterized in that it is used continuously or selectively. Device.