WO2024028978A1

WO2024028978A1 - Roll unit, roll equipment, data measuring method, and product manufacturing method

Info

Publication number: WO2024028978A1
Application number: PCT/JP2022/029652
Authority: WO
Inventors: 喜美影平; 雅司吉川
Original assignee: ＰｒｉｍｅｔａｌｓＴｅｃｈｎｏｌｏｇｉｅｓＪａｐａｎ株式会社
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2024-02-08

Abstract

This roll unit comprises: a roll 100 configured to be capable of spinning about an axis of rotation; chocks 110, 110A and 110B respectively provided outward of both end portions, in an axial direction, of the roll 100; and sensors 120, 120A, 120B provided respectively on surfaces of the chocks 110, 110A and 110B, for acquiring information relating to the chocks 110, 110A and 110B. As a result, the present invention provides a roll unit equipped with a sensor that is easier to replace than in the past, roll equipment, a data measuring method, and a product manufacturing method.

Description

Roll unit, roll equipment, data measurement method, and product manufacturing method

The present invention relates to a roll unit, roll equipment, data measurement method, and product manufacturing method.

Patent Document 1 discloses, in a rolling apparatus having at least a pair of upper and lower work rolls and a reinforcing roll, a strain measuring means for measuring elastic strain in the rolling direction generated in each of a work side roll chock and a drive side roll chock of a work roll; Strain conversion means that converts the measured elastic strain into the rolling direction force acting on each of the working side roll chock and the driving side roll chock of the work roll using a pre-identified relational expression between elastic strain and rolling direction force. It is stated that it has:

Patent Document 2 discloses that a four-row cylindrical roller bearing is installed between the inner circumferential surface of the housing and the outer circumferential surface of the backup roll, and a part of the collar provided at the axial end of the four-row cylindrical roller bearing is , the sensor device includes a detection section for detecting temperature and vibration, and a transmitting device for transmitting the processed signal extracted from the detection section as a wireless signal. It is described that a receiving antenna, which is a part of a receiving device for receiving radio signals emitted by a transmitting device, is provided in a part of the restraining lid, which is a member different from the collar.

Patent No. 5811048 Japanese Patent Application Publication No. 2003-83352

When vibration occurs during the rolling process, striped patterns appear on the surface of the rolled material, leading to a decrease in surface quality.At the same time, striped patterns appear on the surface of the rolling rolls, which increases the frequency of roll grinding, which increases costs and reduces manufacturing efficiency. Therefore, there are circumstances that I would like to avoid. In particular, large rolling vibrations are likely to occur during rolling of high-strength materials and thin materials with high rolling loads, so it is desirable to suppress the vibrations or accurately measure the vibrations.

As a conventional technique for measuring elastic strain in the rolling direction occurring in a roll unit, there is, for example, a technique described in Patent Document 1. Patent Document 1 discloses a configuration in which a strain measuring means is inserted into the bottom of a hole formed in a chock of a work roll, and the strain measuring means is fixed by closing the hole with a bolt.

Further, Patent Document 2 discloses that a collar ring at an axial end of a four-row cylindrical roller bearing is provided with a sensor device that detects temperature or vibration.

In a typical rolling mill, the rolling rolls are called a roll unit and are replaced regularly together with the bearing box. Therefore, it is necessary to remove and attach a sensor, such as a wired vibration accelerometer, installed to measure vibration during rolling, each time the rolls are replaced. In the present invention, a combination of a roll and a chock is referred to as a roll unit.

However, if the sensor is installed inside the chock or on the bearing, the structure around the sensor becomes complicated, and it takes time to replace the sensor. This only leads to a decrease in work efficiency.

Therefore, it is desired to improve work efficiency by making it easier to remove the sensor.

The present invention provides a roll unit equipped with a sensor that is easier to replace than conventional ones, roll equipment, a data measurement method, and a product manufacturing method.

The present invention includes a plurality of means for solving the above-mentioned problems. To give one example, a roll configured to be rotatable around a rotating shaft, and a A sensor is provided on the surface of each chock and acquires information regarding the chock.

According to the present invention, it is possible to mount a sensor that is easier to replace than conventional ones. Problems, configurations, and effects other than those described above will be made clear by the description of the following examples.

The figure which shows the schematic structure of the roll equipment provided with the roll unit of an Example. The control block diagram of the control device in the roll equipment of the example. The figure which shows the schematic structure of the roll unit of an Example. The figure which shows the schematic structure when the roll unit of an Example is seen from the rolling direction. The figure which shows the schematic structure when the roll unit of an Example is seen from the direction perpendicular|vertical to a rolling direction. The figure which shows the schematic structure when other forms of the roll unit of an Example are seen from a rolling direction. The figure which shows the schematic structure when other forms of the roll unit of an Example are seen from the direction perpendicular|vertical to a rolling direction. The figure which shows the schematic structure when the other form of the roll unit of an Example is seen from the rolling direction. The figure which shows the schematic structure when the other form of the roll unit of an Example is seen from the direction perpendicular|vertical to a rolling direction.

Examples of the roll unit, roll equipment, data measurement method, and product manufacturing method of the present invention will be described using FIGS. 1 to 9. In the drawings used in this specification, the same or corresponding components are given the same or similar symbols, and repeated description of these components may be omitted.

First, the overall configuration of a roll facility equipped with a roll unit and the configuration of the main body controlling the operation will be described using FIGS. 1 and 2. FIG. 1 is a diagram showing a schematic configuration of a roll facility including a roll unit according to an embodiment, and FIG. 2 is a control block diagram of a control device in the roll facility according to an embodiment.

In the following embodiments, the case where the roll unit of the present invention is installed in roll equipment will be explained as an example, but the roll unit of the present invention is applicable not only to roll equipment but also to roll sets with chocks. Equipment such as edgers, leveler guide rolls, pinch rolls, etc. can be used, and there are no particular limitations.

The rolling equipment 1 that rolls the metal material 5 shown in FIG. 1 includes an F1 stand 10, an F2 stand 20, an F3 stand 30, an F4 stand 40, a control device 60, a display device 70, and the like. Further, the F1 stand 10, the F2 stand 20, the F3 stand 30, the F4 stand 40, the control device 60, and the display device 70 are connected by communication lines (not shown for convenience of illustration).

Note that the rolling equipment 1 is not limited to the configuration in which four rolling stands are installed as shown in FIG. 1, but may be any number as long as it has at least one stand or more. Moreover, either hot rolling or cold rolling may be used, and there is no particular limitation.

The F1 stand 10 includes an upper work roll unit 11 and a lower work roll unit 12, an upper reinforcing roll unit 13 and a lower reinforcing roll unit 14 that are supported by contacting the upper working roll unit 11 and the lower working roll unit 12, respectively. It is equipped with a housing 15 etc. that holds the. It should be noted that a six-stage structure may be provided in which an intermediate roll is further provided between each work roll and each reinforcing roll.

Each of the F2 stand 20, F3 stand 30, and F4 stand 40 has substantially the same configuration as the F1 stand 10, so details will be omitted.

As shown in FIG. 2, the control device 60 includes a measurement data collection section 61, a determination section 62 having a single data determination section 62a and a multiple data determination section 62b, a comparison value calculation section 63, a processing section 64, and a rolling equipment 1 It includes an operation control section 65 and the like that control the operation of each device within the device.

The control device 60 can be composed of a computer having a display device 70 such as a liquid crystal display, which will be described later, an input device, a storage device, a CPU, a memory, an external power source (not limited to wired or wireless), etc. It may be configured by one computer or another computer, and is not particularly limited.

Control of the operation of each device and each function by the control device 60 is executed based on various programs recorded in the storage device. Note that the control processing of the operations executed by the control device 60 may be summarized into one program, each may be divided into a plurality of programs, or a combination thereof may be used. Further, part or all of the program may be realized by dedicated hardware or may be modularized.

Hereinafter, the functional configuration of the control device 60 will be explained using FIG. 2.

The measurement data collection unit 61 collects various data measured by a sensor 120 that acquires information regarding the

chocks

110, 110A, 110B provided on the surface of each of the

chocks

110, 110A, 110B, which will be described later, and related data, such as timing data. Collect.

The comparison value calculation unit 63 calculates a comparison value in a single data determination unit 62a and a multiple data determination unit 62b, which will be described later. Comparison values include, for example, abnormality judgment values obtained from the accumulated experience and achievements of the manufacturer who conducts rolling operations using the rolling equipment 1, the rolling equipment manufacturer, the value obtained by statistical processing of these, It may be a value for comparison calculated based on an analytical model, a value for comparison calculated by machine learning such as deep learning, etc., but is not limited thereto.

Of the determining unit 62, the single data determining unit 62a is a part that determines whether each data measured by the sensor 120 is abnormal/normal. It is decided which comparison value to use among the comparison values calculated by the comparison value calculation unit 63, and the judgment is made on an instantaneous (one-time) basis and on a trend in a time series.

Of the determining unit 62, the multiple data determining unit 62b is a part that determines abnormality/normality etc. as a whole by combining data measured by the sensor 120 and external data such as load and rolling speed. Similar to the single data judgment unit 62a, it is decided which comparison value to use among the comparison values calculated by the comparison value calculation unit 63, and the judgment is made based on instantaneous (one-time) judgment and trends in the time series. make a judgment.

The processing unit 64 processes the results of the judgments made by the single data judgment unit 62a and the multiple data judgment unit 62b, compares the measured data with a threshold value, and takes countermeasures such as reducing the rolling speed if a deviation occurs. It performs processing such as calculating and displaying operator guidance on the display device 70, outputting an alarm, calculating a correction amount for optimization of control, and outputting a countermeasure processing signal to the operation control unit 65.

Returning to FIG. 1, the display device 70 is a display device such as a display, or an audio device such as an alarm, and is used to inform the operator of countermeasures when it is determined that a rolling abnormality has occurred, for example. In the case of a device, a display is often used.

During operation, the operator can check the rolling state of the metal material 5 by visually observing the display screen of the display device 70, each stand itself, and between each stand.

Note that the control device 60 is not limited to automatically informing the operator of the occurrence of a rolling abnormality and performing an operation to improve the rolling abnormality that has occurred, but it may also be a form that only displays the information on the display device 70 or a form that does not display the information on the display device 70. It is possible to omit this and simply perform the operation to improve the rolling abnormality automatically by the control device 60.

Although the control device 60 is exemplified as a device that controls the operation of the rolling equipment 1, it is not limited to this form, and may also be any one of a mobile terminal such as a smartphone or a tablet, or even an edge PC. It can be more than that.

Next, the details of the configuration of the roll unit of this embodiment will be explained using FIGS. 3 to 5. FIG. 3 is a diagram showing the schematic configuration of the roll unit of the example, FIG. 4 is a diagram showing the schematic configuration of the roll unit when viewed from the rolling direction, and FIG. 5 is a diagram showing the schematic configuration of the roll unit when viewed from the direction perpendicular to the rolling direction. FIG.

In FIGS. 3 to 5, the upper work roll unit 11 of the F1 stand 10 is illustrated as a representative example, but the structures of other lower work roll units 12, upper reinforcing roll units 13, lower reinforcing roll units 14, etc. are also the same. Since they are substantially the same, the details will be omitted.

The upper work roll unit 11 shown in FIGS. 3 to 5 includes a roll 100, a chock 110 provided on the drive side and an operation side of the roll 100, a sensor 120, and a sensor 120 provided inside the chock 110 to rotate the roll 100 on its axis. It is configured by a bearing 130 etc. that can be supported.

The sensor 120 is provided inside a recess 113 provided on the surface of the chock 110 on the surface of each of the chock 110 on the drive side and the operation side, at a position that can be visually recognized from the outside, and is located at a position that is visible from the outside. Get information.

There is no particular limitation on the method of fixing the sensor 120 to the recess 113, and one or more recesses or projections provided on the surface of the sensor 120 and one or more projections or recesses provided in the recess 113 fit together. Various fixing methods can be employed, such as structural, bolted, magnetic, adhesive, etc.

Although a part of the sensor 120 is shown as an example protruding from the surface of the chock 110 around the recess 113, even if the entire part is provided at a position deeper than the recess 113 on the surface of the chock 110. Alternatively, the entire portion may protrude from the surface of the chock 110.

For example, as shown in FIG. 3, if both the drive-side sensor 120 and the operation-side sensor 120 are provided, it is possible to measure three-dimensional cases such as torsion in vibration mode, and more data can be obtained. This is desirable because it allows the collection of

The sensor 120 includes a sensing section 121, an amplifier 122, a storage device (memory) 123, a transmitter 124, a power source 125, and the like.

It is preferable that this sensor 120 has a package specification in which the configuration of the sensing parts 121 and the like is modularized as required, and is used in the event of replacement of the power supply 125, failure of the sensor 120, or the upper work roll unit 11 itself. It is desirable that the parts can be replaced all at once. This makes it possible to simply replace the module with a new module, making the replacement work extremely easy. Further, it is more desirable that the device be integrated with various types of covers such as waterproof and dustproof, which can improve the accuracy of data acquisition and reduce the failure probability of the device.

Further, in this sensor 120, it is desirable that the measurement timing of the sensing unit 121 can be determined by a time stamp or the like. In this case, since it can be synchronized with external data such as load and rolling speed, it becomes possible to compare and combine the data from the sensing section 121 mounted on the chock and other data. Therefore, it becomes possible to carry out more accurate examination.

The sensing unit 121 includes any one of a displacement sensor that measures the vibration of the chock 110, a speed sensor, an acceleration sensor, a tilt angle sensor, a temperature sensor, a strain gauge, a piezo element, a microphone, an acoustic emission sensor, a thermometer, etc. It is composed of various sensor members, one or a combination of two or more thereof, and can be added or deleted as appropriate according to the data to be measured. For example, if a thermometer is provided, it can be determined during vibration analysis whether there is an effect due to temperature, such as a gap becoming smaller due to expansion due to temperature rise.

The amplifier 122 is a part that amplifies the data measured by the sensing unit 121 as necessary, and outputs the amplified sensor data to the storage device 123 or to an external storage device via the transmitter 124. do.

The storage device 123 is composed of a memory or the like that stores measurement results from the sensing unit 121 for a certain period of time. As a result, even if measurement data cannot be transmitted externally during measurement, the information can be stored and reviewed later. Furthermore, even if it is difficult to transmit data wirelessly, the data can be retrieved externally.

The transmitter 124 directly transmits the measurement results measured by the sensing unit 121 and amplified by the amplifier 122 as necessary, or transmits the measurement results temporarily stored in the storage device 123 to an externally connected device such as the control device 60. It is an output device. This transmitter 124 may have a wireless connection or a wired connection, and is not particularly limited.

The power source 125 is a means for supplying driving power to the sensing unit 121 and the like. This allows data to be collected for a certain period of time without an external power supply. Further, there is no need to supply power from an external power source, and a configuration more suitable for integrated packaging can be achieved.

This power source 125 may have a rechargeable configuration or a non-chargeable configuration, and is not particularly limited. If charging is possible, charging may be done by wired or wireless method, and is not particularly limited. Moreover, it may be possible to generate electricity by vibration or temperature, and there is no particular limitation. This allows the battery to be used continuously without having to be replaced, thereby further reducing the frequency of battery replacement and further improving productivity.

Next, other forms of the roll unit will be explained using FIG. 6 and subsequent figures. FIG. 6 is a diagram showing a schematic configuration of another form of the roll unit when viewed from the rolling direction, FIG. 7 is a diagram showing a schematic configuration of another form of the roll unit when viewed from a direction perpendicular to the rolling direction, FIG. 8 is a diagram showing a schematic configuration of still another form of the roll unit when viewed from the rolling direction, and FIG. 9 is a diagram showing a schematic configuration of still another form of the roll unit when viewed from a direction perpendicular to the rolling direction. It is a diagram.

In the upper work roll unit 11A shown in FIGS. 6 and 7, the sensor 120A is a recess 113A provided on the surface of the chock 110A on each of the driving side and operation side chocks 110A. It is provided in a visible position, and is provided outside the outer wall surface of the housing 15 in the central axis direction of the housing 15.

Furthermore, the chock 110A has a collar portion 111 that protrudes from both sides of the roll 100 in the radial direction. Further, the roll equipment having the upper work roll unit 11A further includes a bending cylinder 112 that applies a vertical force to the collar portion 111. Moreover, the sensor 120A is provided between each of the collar portions 111 and at a position away from the bearing 130, that is, at a position not in contact with the bearing 130.

In the upper work roll unit 11B shown in FIGS. 8 and 9, the sensor 120B is a recess 113B provided in the surface of the chock 110A among the surfaces of each of the chocks 110B on the drive side and the operation side, and is visually visible from the outside. It is provided at a possible position, and is provided outside the outer wall surface of the housing 15 in the central axis direction of the housing 15.

In FIGS. 8 and 9, a part of the sensor 120B is provided at a position recessed from the surface of the chock 110B around the recess 113B, but at least a part of the sensor 120B protrudes from the surface of the chock 110A. You can leave it there.

Further, in the upper work roll unit 11B, the sensor 120B is provided outside the housing 15 in the axial direction and at a position away from the bearing 130, and is provided on the side surface of the chock 110B in the axial direction. .

Although we have described a form in which the

recesses

113, 113A, and 113B are exposed on the surface of the

chocks

110, 110A, and 110B and are visible from the outside, there is also a form in which the

recesses

113, 113A, and 113B are not directly visible from the outside by providing a lid to prevent dirt. You can also use it as

When rolling the metal material 5 using such upper

work roll units

11, 11A, 11B, lower work roll unit 12, upper reinforcing roll unit 13, and lower reinforcing roll unit 14, the

sensors

120, 120A, 120B Information on its operating status can be measured.

Additionally, the roll replacement timing can be determined using the measured signals and data.

Furthermore, the metal material 5 can be rolled by appropriately changing the operating conditions using the measured signals and data.

Next, the effects of this embodiment will be explained.

The upper working roll unit 11, the lower working roll unit 12, the upper reinforcing roll unit 13, and the lower reinforcing roll unit 14 of the present embodiment described above include a roll 100 configured to be able to rotate around a rotation axis, and an axis of the roll 100.

Chocks

110, 110A, 110B provided on the outside of both ends in the direction, and

sensors

120, 120A, 120B provided on the surface of each of the

chocks

110, 110A, 110B to acquire information regarding the

chocks

110, 110A, 110B. It is equipped with.

Since the

sensors

120, 120A, 120B are provided on the surface of the

chocks

110, 110A, 110B in this way, even if the surrounding structure is complex, if it is necessary to access the

sensors

120, 120A, 120B by replacing them, etc. It is possible to easily access and work easily, and improve work efficiency.

In addition, since the side surface of the chock 110B is exposed to the outside even after the roll unit is installed in the equipment, the sensor 120B is installed on the side surface in the axial direction of the chock 110B, so that the sensor 120B is not used when replacing the roll unit. However, the sensor 120 can be easily accessed.

Furthermore, the

sensors

120, 120A, 120B are

recesses

113, 113A, 113B provided on the surface of the

chocks

110, 110A, 110B, and are provided in positions where they can be seen from the outside, so that the roll unit cannot be placed inside the equipment. Since the

sensors

120, 120A, and 120B do not interfere with other parts when installed in the sensor, less load is applied to the

sensors

120, 120A, and 120B, and the probability of failure can be reduced.

Further, the

sensors

120, 120A, 120B can acquire various information regarding the operating state by measuring the vibrations of the

chocks

110, 110A, 110B.

Furthermore, a bearing 130 is provided inside the chock 110A to rotatably support the roll 100, and the sensor 120A is provided at a position away from the bearing 130, so that the sensor 120A does not come into contact with the bearing 130. Therefore, the vibration of the entire device in which the roll unit is incorporated can be detected without being significantly influenced by the vibration of the bearing 130.

In addition, the

sensors

120, 120A, 120B are configured to be able to transmit the acquired information of the

chocks

110, 110A, 110B to the outside via wireless or wire, so that data can be transmitted to the outside even during measurement. This makes it possible to change the operating conditions during operation to more appropriate conditions.

Further, the roll equipment includes an upper working roll unit 11, a lower working roll unit 12, an upper reinforcing roll unit 13, a lower reinforcing roll unit 14, an upper working roll unit 11, a lower working roll unit 12, an upper reinforcing roll unit 13, and a lower working roll unit 11, a lower working roll unit 12, an upper reinforcing roll unit 13, a lower reinforcing roll unit 14, A housing 15 in which a reinforcing roll unit 14 is provided is provided, and the

sensors

120A and 120B are provided outside the housing 15 in the axial direction, making them easier to access.

Further, the roll 100 is a roll 100 that rolls the metal material 5, and the chock 110A is a bending cylinder that has a collar portion 111 protruding from both sides of the roll 100 in the radial direction and applies a vertical force to the collar portion 111. 112, and the sensor 120A is provided between the respective brim portions 111, so that it can be placed in a position where it does not get in the way of the bending cylinder 112. Therefore, a load is less likely to be applied to the sensor 120A, reducing the possibility of failure. Can be suppressed.

Furthermore, the

sensors

120, 120A, 120B are

recesses

113, 113A, 113B provided on the surface of the

chocks

110, 110A, 110B, and are provided in positions where they can be seen from the outside, so that the chocks of other rolls can be easily detected. Since there is no interference with the

sensors

120, 120A, and 120B, the load is less likely to be applied to the

sensors

120, 120A, and 120B, and the probability of failure can be reduced.

In addition, in the data measurement method, when operating using the upper work roll unit 11, the lower work roll unit 12, the upper reinforcing roll unit 13, and the lower reinforcing roll unit 14, the sensor 120 measures information on the operating state. , abnormalities and roll defects can be detected early, the roll replacement cycle can be optimized, maintenance timing can be optimized, and the product can be used for a long period of time without problems, which is effective in improving quality control and productivity. .

Furthermore, in the product manufacturing method, by adjusting the operating conditions as necessary using the information measured by the data measurement method described above, it is possible to improve the quality of the product and increase the production amount.

<Others>
Note that the present invention is not limited to the above-described embodiments, and various modifications and applications are possible. The embodiments described above are described in detail to explain the present invention in an easy-to-understand manner, and the present invention is not necessarily limited to having all the configurations described.

1... Rolling equipment 5... Metal material 10... F1 stand 11, 11A, 11B... Upper work roll unit 12... Lower work roll unit 13... Upper reinforcing roll unit 14... Lower reinforcing roll unit 15... Housing 20... F2 stand 30... F3 Stand 40...F4 stand 60...Control device 61...Measurement data collection section 62...Judgment section 62a...Single data judgment section 62b...Multiple data judgment section 63...Comparison value calculation section 64...Processing section 65...Operation control section 70...Display Device 100...

Rolls

110, 110A, 110B...Chock 111...Brim portion 112...Bending

cylinder

113, 113A, 113B...

Indentation

120, 120A, 120B...Sensor 121...Sensing section 122...Amplifier 123...Storage device 124...Transmitter 125... Power supply 130...Bearing

Claims

A roll configured to be able to rotate around a rotation axis,
chocks provided on the outer sides of both ends of the roll in the axial direction;
A roll unit comprising: a sensor provided on the surface of each of the chocks to acquire information regarding the chocks.
The roll unit according to claim 1,
The sensor is provided on a side surface of the chock in the axial direction.
The roll unit according to claim 1 or 2,
The sensor is a recess provided on the surface of the chock, and is provided at a position that is visible from the outside. Roll unit.
The roll unit according to claim 1 or 2,
The sensor measures vibrations of the chock of the roll unit.
The roll unit according to claim 4,
further comprising a bearing provided inside the chock and rotatably supporting the roll;
The sensor is provided at a position remote from the bearing.
The roll unit according to claim 1 or 2,
The sensor is configured to be able to transmit the acquired chock information to the outside by wireless or wired. Roll unit.
The roll unit according to claim 1 or 2,
A housing provided with the roll unit,
The sensor is provided outside the housing in the axial direction. Roll equipment.
The roll equipment according to claim 7,
The roll is a roll for rolling a metal material,
The chock has a collar protruding from both sides of the roll in the radial direction,
further comprising a bending cylinder that applies vertical force to the collar,
The sensor is provided between each of the collar parts. Roll equipment.
The roll equipment according to claim 8,
The sensor is a recess provided on the surface of the chock, and is provided at a position that is visible from the outside. Roll equipment.
A data measurement method, comprising: measuring the information on the operating state using the sensor when operating using the roll unit according to claim 1 or 2.
A product manufacturing method, wherein operating conditions are adjusted as necessary using the information measured by the data measurement method according to claim 10.