TW201803656A - Edger control device - Google Patents

Abstract

There is provided an edger control device capable of improving an accuracy of a width dimension of a product. The edger control device includes: an edger tip/tail end opening pattern corrector that calculates an inlet side width deviation based on a detected value of an actual sheet width of a material to be rolled collected by an inlet side width actual data collector, and calculates an edger tip/tail end opening pattern correction amount for an edger tip/tail end opening controller based on the inlet side width deviation; and an edger tip/tail end opening pattern correction compensator that calculates an edger tip/tail end opening pattern correction compensation term for the edger tip/tail end opening pattern corrector based on an edger tip/tail end opening pattern generated by an edger tip/tail end opening pattern generator, a detected value of an actual sheet width of the material to be rolled collected by an outlet side width actual data collector, and the inlet side width deviation calculated by the edger tip/tail end opening pattern corrector.

Description

Control device of trimming machine

The invention relates to a control device of an edge trimming machine.

Patent Document 1 discloses a control device for an edge trimmer. This control device applies correction to the representative board width prediction mode. As a result, the accuracy of the width dimension of the product can be improved.

[Previous Patent Literature]

Patent Document 1: Japanese Patent Laid-Open No. 62-127111

However, in the control device described in Patent Document 1, the same plate width prediction mode is also set for the rolled material having different plate width variations. Therefore, it will cause uneven width of products.

The present invention was developed to solve the above-mentioned problems. The object of the present invention is to provide a control device for a trimming machine which can improve the accuracy of the width dimension of the product.

The control device of the trimming machine of the present invention has: The pass schedule determiner determines the roller gap of the trimming machine according to the thickness and width of the rolled material before rolling and the target width of the rolled material after rolling; The opening pattern generator generates the trimming machine head and tail in such a way that the unsteady part of the head and tail ends of the rolled material coincides with the target plate width according to the information from the decision of the aforementioned pass program table End opening mode; the head and tail opening control of the trimming machine is based on the gap between the rollers of the trimming machine determined by the pass schedule determiner, and the end opening of the trimming machine The opening mode of the head and tail of the trimming machine generated by the degree pattern generator controls the opening of the roller of the aforementioned trimming machine; the measured data collector of the entrance side width collects the rolled material on the entrance side of the aforementioned trimming machine The measured value of the measured board width; the measured data collector of the width of the outlet side is the collected measured value of the measured board width of the rolled material on the outlet side of the aforementioned trimming machine; Collected by the aforementioned measured data collector on the entrance side width The measured value of the measured plate width of the rolled material is used to calculate the width deviation of the entrance side, and the correction of the opening mode of the trimming head and tail end of the aforementioned trimming head and tail end opening controller is calculated according to the entrance side width deviation Amount; and the trimming machine head and tail opening degree pattern correction corrector, based on the trimming machine head and tail opening degree pattern generator generated by the trimming machine head and tail opening degree pattern generator, through the exit side The measured value of the measured plate width of the rolled material collected by the width measurement data collector, and the entrance side width deviation calculated by the aforementioned trimming machine head and tail opening pattern corrector to calculate The correction items of the opening mode of the trimming machine of the edge opening mode corrector.

According to the present invention, the opening mode of the trimming machine head and tail is corrected according to the correction amount of the opening mode of the trimming machine head and tail. The correction amount of the opening mode of the trimming machine head and tail is based on the correction items of the opening mode of the trimming machine head and tail. Therefore, the accuracy of the width dimension of the product can be improved.

1‧‧‧ Trimming machine

1a‧‧‧roll

1b‧‧‧Hydraulic cylinder

2‧‧‧horizontal rolling machine

3‧‧‧ Entry side width meter

4‧‧‧Roller speed detector

5‧‧‧Hot film detector

6‧‧‧rotation speed detector

7‧‧‧Exit width meter

8‧‧‧Tracking device

9‧‧‧Control device

9a‧‧‧pass schedule determiner

9b‧‧‧Opening pattern generator

9c‧‧‧Opening controller for trimming head

9d‧‧‧Inlet side width measured data collector

9e‧‧‧Exit side width measured data collector

9f‧‧‧Corrector for opening pattern of trimming head

9g‧‧‧ trimming machine head and tail opening pattern correction corrector

10‧‧‧ Rolled material

11a‧‧‧ processor

11b‧‧‧Memory

12‧‧‧Software

Fig. 1 is a configuration diagram of a rough rolling step of a hot-rolled rolling line to which the control device of the trimming machine according to the first embodiment of the present invention is applied.

FIG. 2 is a block diagram of a trimmer head and tail opening degree pattern corrector for the trimming machine control device according to the first embodiment of the present invention.

FIG. 3 is a block diagram of a correction corrector for a trimming machine head and tail opening degree pattern correction device of a trimming machine control device according to a first embodiment of the present invention.

Fig. 4 is a diagram showing the measured plate width of the rolled material used in the control device of the trimmer according to the first embodiment of the present invention.

Fig. 5 is a diagram showing the measured plate width of the rolled material used in the control device of the trimming machine according to the first embodiment of the present invention.

Fig. 6 is a diagram showing the opening pattern of the head and tail of the trimming machine generated by the control device of the trimming machine according to the first embodiment of the present invention.

Fig. 7 is a flowchart for explaining the outline of the operation of the control device of the trimmer according to the first embodiment of the present invention.

Fig. 8 is a hardware configuration diagram of a control device for a trimmer according to a first embodiment of the present invention.

Fig. 9 is a block diagram of a trimmer head and tail opening degree pattern corrector for a trimming machine control device according to a second embodiment of the present invention.

Fig. 10 is a diagram showing the measured plate width of the rolled material used in the control device of the trimming machine according to the second embodiment of the present invention.

The form for implementing the present invention will be described in accordance with the inspection drawings. In addition, in each figure, the same or corresponding parts are marked with the same symbols. The repetitive description of this part is simplified or omitted as appropriate.

First embodiment

Fig. 1 is a configuration diagram of a rough rolling step of a hot-rolled rolling line to which the control device of the trimming machine according to the first embodiment of the present invention is applied.

In Fig. 1, the rough rolling step of the hot rolling rolling line is provided on the downstream side of the heating furnace not shown. The rough rolling step of the hot-rolled rolling line is provided closer to the upstream side than the finishing rolling step (not shown).

At least one trimming machine 1 is provided on the upstream side of the rough rolling step of the hot rolling rolling line. The edge trimmer 1 includes a roller 1a and a hydraulic cylinder 1b. At least one horizontal rolling machine 2 is arranged closer to the downstream side than at least one trimming machine 1.

The inlet-side width gauge 3 is arranged closer to the upstream side than the at least one trimmer 1. The roller table speed detector 4 is provided between at least one trimming machine 1 and the entrance-side width gauge 3. The hot sheet detector 5 is provided between at least one trimming machine 1 and the roller table speed detector 4. The rotation speed detector 6 is provided on at least one horizontal rolling machine 2. The outlet-side width gauge 7 is provided on the downstream side of the horizontal rolling mill 2.

The input part of the tracking device 8 is connected to the roller table speed detection The output section of the detector 4. The input unit of the tracking device 8 is connected to the output unit of the rotation speed detector 6.

The control device 9 is equipped with a pass schedule determiner 9a, a trimmer head and tail opening pattern generator 9b, a trimmer head and tail opening controller 9c, and an entrance-side width measured data collector 9d 、 Measured data collector 9e for the width of the exit side, 9f for the trimming machine head and tail opening pattern correction mode, and 9g for the trimming machine head and tail opening mode correction model.

In the first pass, the rolled material 10 is transferred from the upstream side to the downstream side. The end on the upstream side of the rolled material 10 is defined as the head end. The downstream end of the rolled material 10 is defined as the trailing end.

In at least one trimming machine 1, when the hydraulic cylinder 1 b is controlled by hydraulic pressure, the roller 1 a rolls the rolled material 10 in the plate width direction by opening and closing in the plate width direction of the rolled material 10. At least one horizontal rolling machine 2 rolls the rolled material 10 in the plate thickness direction by opening and closing in the plate thickness direction of the rolled material 10.

The entrance-side width meter 3 detects the actual plate width of the rolled material 10. The roller table speed detector 4 detects the speed of the roller table (not shown). The hot sheet detector 5 detects the rolled material 10. The rotation speed detector 6 detects the rotation speed of at least one horizontal rolling mill 2. The exit-side width meter 7 detects the measured plate width of the rolled material 10.

The tracking device 8 generates tracking information of the transport position of the rolled material 10 based on the detection value of the roller table speed detector 4 and the detection value of the rotation speed detector 6.

When the rolled material 10 reaches a preset position on the hot-rolled rolling line, the pass schedule determiner 9a receives hot-rolled order information from a high-level computer not shown. For example, the pass schedule determiner 9a receives information on the steel grade. For example, the pass schedule determiner 9a receives information on the size of the material to be rolled 10 before rolling. For example, the pass schedule determiner 9a receives information on the target size of the rolled material 10 after being rolled. The pass schedule determiner 9a determines the number of rotations of the roller 1a and the opening degree of the roller 1a in such a manner that products of a predetermined size are manufactured.

For example, the determination of the opening degree of the roller 1a in the pass schedule determiner 9a is based on the information of the plate thickness and width of the rolled material 10 before rolling, and the target plate width of the rolled material 10 after rolling. The opening degree of the roller 1a in the next pass. At this time, the pass program table determiner 9a determines the opening degree of the roll 1a of the target plate width for the steady-state portion of the rolled material 10 in the preset pass.

The trimmer head and tail opening pattern generator 9b generates the trimmer head and tail opening pattern in such a manner that the unsteady portion of the head and tail of the rolled material 10 coincides with the target plate width. For example, the pattern generator 9b of the head and tail opening of the trimming machine is selected from the steel grade from the pass schedule determiner 9a, the plate thickness and plate width of the rolled material 10 before rolling, and the width reduction A numerical table storing information on the opening patterns of a plurality of trimming heads and tails index specific opening and tailing patterns of the trimming heads. For example, the trimming machine head and tail opening pattern generator 9b generates a specific trimming machine head and tail opening pattern according to a preset formula.

The opening controller 9c of the head and tail of the trimming machine is based on The gap of the roller 1a determined by the subroutine determiner 9a and the opening pattern of the trimming machine head and tail opening pattern generated by the trimming machine head and tail opening pattern generator 9b control the opening degree of the roller 1a. The opening and closing controller 9c of the trimming machine head transmits signals to the hydraulic cylinder 1b at an appropriate position of the rolled material 10 according to the tracking information of the transport position of the rolled material 10, so that the trimming machine head and tail The opening of the trimming machine 1 is changed in the end opening mode.

The entrance-side width measured data collector 9d collects the detection value of the entrance-side width meter 3.

The measured data collector 9e on the exit side width collects the detection value of the exit side width meter 7.

The correction device 9f for the opening pattern of the trimming machine head and tail ends calculates the deviation of the width of the entrance side of the rolled material 10 based on the detection value collected by the actual side entrance data collector 9d. The trimming machine head and tail opening degree pattern corrector 9f calculates the correction amount of the trimming machine head and tail opening degree mode correction for the trimming machine head and tail opening degree controller 9c based on the entrance side width deviation.

The corrector 9g for the trimming head and tail opening pattern correction is based on the trimming head and tail opening pattern generator 9b generated by the trimming head and tail opening pattern generator 9b, and the measured data at the exit side is collected The detection value collected by the device 9e, and the trimming head for the trimming machine head and tail opening pattern correction device 9f is calculated by the deviation of the entrance side width calculated by the trimming machine head and tail opening mode correction device 9f Correct the correction items in the opening mode of the tail end.

Hereinafter, using FIG. 2, 9f of the trimming machine head and tail opening degree pattern corrector will be described.

Figure 2 is the control device of the trimming machine according to the first embodiment of the present invention Block diagram of the trimmer head opening mode correction device.

The trimmer head and tail opening pattern corrector 9f calculates the entrance-side average plate width B ^ave of the center portion of the rolled material 10 in the longitudinal direction based on the detection value collected by the entrance-side width measurement data collector 9d (mm). Specifically, the average plate width B ^ave (mm) on the entrance side is calculated by the following formula (1).

In the formula (1), L _head is the end position of the trimmer opening degree change of the head end portion of the rolled material 10 in the longitudinal direction. The unit of L _head is (mm). L _tail is the start position of the trimmer opening degree change of the trailing end portion of the rolled material 10 in the longitudinal direction. The unit of L _tail is (mm). B _(x) is the width of the entrance side plate in the longitudinal direction of the rolled material 10. The unit of B _(x) is (mm). x is the distance from the head end of the rolled material 10 in the longitudinal direction. The unit of x is (mm).

Corrector 9f of the trimming machine head end opening pattern mode calculates the long side direction of the rolled material 10 on the control point L _i of the long side direction of the long side direction where the trimming machine head end opening change is applied by dividing by an arbitrary length The deviation between the measured plate width B _Hi (mm) at the head end and the entrance-side average plate width B ^ave (mm) is Δω _Hi (mm). Specifically, the entrance-side width deviation Δω _Hi (mm) is calculated by the following formula (2).

Δ ω _Hi = B _Hi - B ^ave (2)

The trimmer head and tail opening degree pattern corrector 9f calculates the lengthwise direction of the rolled material 10 at the control point L _j at the tail end of the long side direction where the tail end opening change of the trimming machine is divided at an arbitrary length The deviation between the measured width of the tail end B _Tj (mm) and the average width of the entrance side B _ave (mm) is Δω _Tj (mm). Specifically, the entrance-side width deviation Δω _Tj (mm) is calculated by the following formula (3). However, j is 1 to n.

Δ ω _Tj = B _Tj - B ^ave (3)

The trimmer head and tail opening degree mode corrector 9f is based on the measured board width B _Hi (mm) and the trimming head end opening degree mode correction correction item Z _ωHi to calculate the trimming head end opening of the control point L _i Degree mode correction amount ΔΩ _Hi (mm). Specifically, the correction amount ΔΩ _Hi (mm) of the trimming machine head end opening mode is calculated by the following formula (4).

ΔΩ _Hi = Z _ωHi ( B _Hi - B ^ave ) (4)

The trimmer head and tail opening degree mode corrector 9f calculates the control point L _j based on the measured board width B _Tj (mm) and the trimming machine tail end opening mode correction correction item Z _ωTj Degree mode correction amount ΔΩ _Tj (mm). Specifically, the correction amount ΔΩ _Tj (mm) of the trailing edge opening mode of the trimmer is calculated by the following formula (5).

ΔΩ _Tj = Z _ωTj ( B _Tj - B ^ave ) (5)

Hereinafter, using FIG. 3, the correction | amendment correction | amendment device 9g of the head and tail end opening pattern of a trimming machine is demonstrated.

Figure 3 is the control device of the trimming machine according to the first embodiment of the present invention. Correction block diagram of the trimmer head and tail opening pattern correction.

The trimming machine head and tail opening pattern correction corrector 9g calculates the average plate in the center of the longitudinal direction of the rolled material 10 after horizontal rolling, based on the detection value collected by the actual width measurement data collector 9e Width B ' ^ave (mm). Specifically, the average board width B ' ^ave (mm) is calculated by the following formula (6).

In the formula (6), L ' _head is the end position of the trimming machine opening degree change of the head end portion in the longitudinal direction of the rolled material 10 after horizontal rolling. The unit of L ' _head is (mm). The L ' _tail is the starting position of the trimmer opening of the tail end of the rolled material 10 in the longitudinal direction after horizontal rolling. The unit of L ' _tail is (mm). B ' _(x) is the width of the entrance side plate in the longitudinal direction of the rolled material 10. The unit of B ' _(x) is (mm). x 'is the distance from the head end of the rolled material 10 in the longitudinal direction. The unit of x 'is (mm).

At this time, the end position of the trimmer opening degree change end L ' _head of the longitudinal end of the rolled material 10 after horizontal rolling is calculated by the following formula (7).

The opening position change start position L ' _tail of the trimming machine 1 at the trailing end of the long-side direction of the rolled material 10 after horizontal rolling is calculated by the following formula (8).

The correction mode corrector 9g for the opening mode of the trimming machine head and tail ends calculates the measured plate width B 'at the head end in the longitudinal direction of the rolled material 10 after horizontal rolling at the control point L' _i corresponding to the control point L _{i The} deviation of _Hi (mm) from the average plate width B ' _ave (mm) on the outlet side of the central part is Δω' _Hi (mm). Specifically, the exit side plate width deviation Δω ' _Hi (mm) is calculated by the following formula (9).

At this time, the control point L ′ _i corresponding to the control point L _i is calculated by the following formula (10).

Correction corrector 9g of the trimming machine head and tail end opening pattern mode calculates the measured plate width B 'at the tail end of the rolled material 10 in the longitudinal direction of the rolled material 10 after horizontal rolling at the control point L' _j corresponding to the control point L _{j The} deviation of _Tj (mm) from the outlet-side average plate width B ' _ave (mm) at the central part is Δω' _Tj (mm). Specifically, the exit side plate width deviation Δω ' _Tj (mm) is calculated by the following formula (11).

At this time, the control point L ′ _j corresponding to the control point L _j is calculated by the following formula (12).

In addition, in the pass where the measured plate width of the trailing end portion of the material to be rolled 10 was not detected due to the equipment distance of the rough rolling step of the hot-rolled rolling line, the exit-side plate width deviation was not calculated. Moreover, the value regarding the trailing end of the rolled material 10 below is also not calculated.

Correction corrector 9g of the trimming machine head and tail opening degree mode calculates the amount of the entrance side width deviation Δω _Hi (mm) before acting on the exit side plate width deviation Δω ' _Hi (mm) as the trimming machine head end opening mode Correct the proportional amount. For example, the correction ratio ΔΓ _Hi (mm) of the trimming head end opening mode is set to the side width deviation Δω _Hi before the change of the trimming head end opening mode in the previous trimming head end opening mode. (mm) simple ratio. Specifically, the correction ratio ΔΓ _Hi (mm) of the trimming machine head end opening pattern is calculated by the following formula (13).

(13) In the formula, ΔS _Hi is the change amount of the trimming head end opening mode of the previous trimming head end opening mode. The unit of the change amount ΔS _Hi of the trimming head end opening is (mm).

The trimming machine head and tail opening degree mode correction corrector 9g calculates the amount of the inlet side width deviation Δω _Tj (mm) before acting on the exit side plate width deviation Δω ' _Tj (mm) as the trimming machine tail end opening mode Correct the proportional amount. For example, the correction ratio ΔΓ _Tj (mm) of the trailing edge opening mode of the trimming machine is set to the previous deviation of the width of the entrance side before the change of the opening of the trimming machine head end. Simple ratio. Specifically, the correction ratio ΔΓ _Tj of the trailing edge opening pattern of the trimmer is calculated by the following formula (14).

In the formula (14), ΔS _Tj is the amount of change in the trimming machine tail end opening degree of the previous trimming machine tail end opening degree mode. The unit of the amount of change ΔS _Tj in the opening of the trimming machine is (mm).

The correction mode corrector 9g of the trimming head and tail opening degree mode correction unit calculates the correction correction term Z _{ωHi of the} trimming head end opening degree mode correction amount as the optimum amount. Specifically, the correction term Z _{ωHi of the trimming machine} head end opening degree mode is calculated by the following formula (15).

The correction term Z _{ωHi of the} trimming head end opening mode correction amount is multiplied by the next trimming head end opening mode correction amount ΔΩ _{Hi of the} rolled material 10. As a result, the correction amount ΔΩ _Hi of the trimming head end opening pattern of the next rolled material 10 is calculated by the following formula (16).

ΔΩ _Hi = Z _ωHi . ( B _nHi - B _n ^ave ) (16)

In the formula (16), B _nHi is the measured plate width of the next rolled material 10. The unit of B _nHi is (mm). B _n ^ave is the average plate width at the entrance side of the central portion in the longitudinal direction of the next rolled material 10. The unit of B _n ^ave is (mm).

The trimming machine head and tail opening degree mode correction corrector 9g calculates the trimming machine tail end opening mode correction correction term Z _ωTj with the trimming machine tail end opening mode correction amount as the most appropriate amount. Specifically, the correction term Z _ωTj of the trimming machine tail end opening pattern correction is calculated by the following equation (17).

The correction term Z _{ωTj of the} trimming machine tail opening mode correction amount is multiplied by the next trimming machine tail opening mode correction amount ΔΩ _{Tj of the} rolled material 10. As a result, the correction amount ΔΩ _Tj of the trimming machine tail end opening pattern of the next rolled material 10 is calculated by the following formula (18).

ΔΩ _Tj = Z _ωTj ( B _nTj - B _n ^ave ) (18)

In the formula (18), B _nTj is the measured plate width of the next rolled material 10. The unit of B _nTj is (mm). B _n ^ave is the average plate width at the entrance side of the central portion in the longitudinal direction of the rolled material 10 below. The unit of B _n ^ave is (mm).

Next, the actual plate width of the rolled material 10 detected by the entrance-side width meter 3 will be described using FIG. 4.

Fig. 4 is a diagram showing the measured plate width of the rolled material used in the control device of the trimmer according to the first embodiment of the present invention. The horizontal axis in FIG. 4 is the distance (mm) from the head end of the rolled material 10 in the longitudinal direction. The vertical axis of FIG. 4 is the measured plate width (mm) of the rolled material 10.

As shown in FIG. 4, the head end portion, the center portion, and the tail end portion in the longitudinal direction of the material to be rolled 10 before rolling are appropriately set. The entrance-side width meter 3 detects the measured plate width (mm) of the head end portion in the longitudinal direction of the rolled material 10 before rolling on the control point Li. The entrance-side width gauge 3 detects the measured plate width (mm) of the trailing end portion of the rolled material 10 in the longitudinal direction before rolling at the control point Lj. Among them, i and j are 1 to n. For example, n is set according to the response speed of the hydraulic cylinder 1b. For example, n is set according to the performance of various controllers.

Next, the actual plate width of the rolled material 10 detected by the exit-side width meter 7 will be described using FIG. 5.

Fig. 5 is a diagram of the measured plate width of the rolled material used in the control device of the trimming machine according to the first embodiment of the present invention. The horizontal axis in FIG. 5 is the distance (mm) from the head end of the rolled material 10 in the longitudinal direction. The vertical axis of FIG. 5 is the measured plate width (mm) of the rolled material 10.

As shown in FIG. 5, the longitudinal end portion, central portion, and tail portion of the rolled material 10 after rolling correspond to the longitudinal end portion, central portion of the rolled material 10 before rolling. , And the end. The exit-side width gauge 7 detects the measured plate width (mm) of the head end portion in the longitudinal direction of the rolled material 10 after being rolled at the control point L'i. The exit-side width gauge 7 detects the long side of the rolled material 10 after being rolled at the control point L'j The measured board width (mm) at the end towards the end.

Next, using Fig. 6, the opening end of the trimming machine head and the opening end of the trimming machine will be described.

Fig. 6 is a diagram showing the opening pattern of the head and tail of the trimming machine generated by the control device of the trimming machine according to the first embodiment of the present invention. The horizontal axis of Fig. 6 (a) is the distance (mm) from the head end of the rolled material 10 in the longitudinal direction. The vertical axis of Fig. 6 (a) is the correction amount (mm) of the trimming head end opening mode (mm) or the trimming head end opening mode. The horizontal axis of FIG. 6 (b) is the distance (mm) from the starting position of the trimmer opening change of the trailing end of the rolled material 10 in the longitudinal direction. The vertical axis of Fig. 6 (a) is the correction amount (mm) of the trimming machine tail opening mode (mm) or the trimming machine tail opening mode.

As shown in Fig. 6 (a), the correction amount (mm) of the trimming head end opening pattern is added to the trimming head end opening generated by the trimming head end opening pattern generator 9b Mode (mm). As a result, the corrected head opening mode (mm) of the trimming machine is reset.

As shown in Fig. 6 (b), the correction amount (mm) of the trimming machine's tail opening pattern is added to the trimming machine's tail opening pattern generated by the trimming machine head and tail opening pattern generator 9b Mode (mm). As a result, the rear end opening pattern (mm) of the trimming machine to be corrected is reset.

Next, the outline of the operation of the control device 9 will be described using FIG. 7.

Fig. 7 is a flowchart for explaining the outline of the operation of the control device of the trimmer according to the first embodiment of the present invention.

In step S1, the control device 9 determines whether it has received Whether the hot rolling command information. When the control device 9 does not receive the hot rolling command information in step S1, the control device 9 repeats the operation of step S1. When the control device 9 receives the hot rolling command information in step S1, the control device 9 performs the operation of step S2.

In step S2, the control device 9 determines a predetermined opening degree of the roll 1a for the target plate width of the non-steady-state portion of the rolled material 10 to be rolled. After that, the control device 9 performs the operation of step S3. In step S3, the control device 9 generates the opening pattern of the trimming machine head and tail in such a manner that the unsteady portion of the head and tail of the rolled material 10 coincides with the target plate width. After that, the control device 9 performs the operation of step S4.

In step S4, the control device 9 transmits a signal to the hydraulic cylinder 1b at an appropriate position of the rolled material 10 according to the tracking information of the conveying position of the rolled material 10, so that the edge opening mode of the trimming head The opening of the trimming machine 1 is changed. After that, the control device 9 performs the operation of step S5.

In step S5, the control device 9 calculates the correction amount of the opening pattern of the trimming machine head and tail. After that, the control device 9 performs the operation of step S6. In step S6, the correction correction term of the head and tail opening degree pattern of the trimming machine is calculated. After that, the control device 9 ends the operation.

According to the first embodiment described above, the trimming machine head and tail opening degree mode is automatically corrected based on the correction amount of the trimming machine head and tail opening degree mode. The correction amount of the opening mode of the trimming machine head and tail is automatically corrected according to the correction items of the opening mode of the trimming machine head and tail. Therefore, in the next rolled material 10, the accuracy of the width dimension of the product can be improved. And, if The number of calendering roots increases, and the correction and correction items of the opening mode of the head and tail of the trimming machine can be set more appropriately.

According to the first embodiment, the trimming machine head and tail opening degree pattern is corrected based on the width deviation of the outlet side of the rolled material 10 caused only by the width deviation of the entrance side of the rolled material 10. Therefore, the width variation of the rolled material 10 caused by the width deviation of the entrance side of the rolled material 10 can be eliminated. For example, the reason why the plate width of the head and tail ends of the rolled material 10 does not become the target plate width can be focused on the mode for changing the opening degree of the head and tail ends of the trimming machine.

Next, an example of the control device 9 will be described using Fig. 8.

Fig. 8 is a hardware configuration diagram of a control device for a trimmer according to a first embodiment of the present invention.

Each function of the control device 9 can be achieved by a processing circuit. For example, the processing circuit includes at least one processor 11a and at least one memory 11b. For example, the processing circuit includes at least one dedicated hardware 12.

When the processing circuit includes at least one processor 11a and at least one memory 11b, each function of the control device 9 is achieved by software, firmware, or a combination of software and firmware. At least one of the software and firmware is described programmatically. At least one of the software and the firmware is stored in at least one memory 11b. At least one processor 11a reads and executes a program stored in at least one memory 11b to realize the functions of the control device 9. At least one processor 11a is also referred to as CPU (Central Processing Unit, central processing unit), central processing device, processing device, computing device, microprocessor, microcomputer, DSP (digital signal processor, digital signal processing). For example, at least one memory 11b is RAM (Random Access Memory), ROM (Read-Only Memory), memory flash memory, EPROM (Programmable Read Only Memory, Erasable programmable read-only memory), EEPROM (Electrically-Erasable Programmable Read-Only Memory), non-volatile memory or volatile semiconductor memory, disk, Soft disk drive, CD-ROM, mini-disk, DVD (Digital Versatile Disc).

When the processing circuit includes at least one dedicated hardware 12, the processing circuit is, for example, a single circuit, a compound circuit, a programmed processor, a parallel programmed processor, an ASIC (Application-specific integrated circuit), FPGA (Field-programmable gate array) can be achieved by the above combination. For example, each function of the control device 9 is achieved by a processing circuit. For example, each function of the control device 9 is achieved by a processing circuit.

The functions of the control device 9 can also be realized by using the dedicated hardware 12 to realize part of it, and using software or firmware to realize other parts. For example, regarding the function of the pass schedule determiner 9a, it is achieved by using a processing circuit as a dedicated hardware 12, while regarding the functions other than the pass schedule determiner 9a, at least one processor 11a reads and executes the program stored in at least one memory 11b.

In this way, the processing circuit achieves each function of the control device 9 by the hardware 12, software, firmware, or a combination thereof.

Second embodiment

Fig. 9 is a block diagram of a trimmer head and tail opening pattern corrector for the control device of the trimmer 1 according to the second embodiment of the present invention. In addition, the same symbols are assigned to the same or corresponding parts as in the first embodiment. The description of this part is omitted.

The trimmer head and tail opening pattern corrector 9f calculates the average plate width B _head ^ave (mm) at the entrance side of the rolled material 10 in the section L _hm (mm) near the head end in the center of the longitudinal direction. Specifically, the entrance-side average plate width B _head ^ave (mm) is calculated by the following formula (19).

The trimmer head and tail opening pattern corrector 9f calculates the average plate width B _tail ^ave (mm) at the entrance side of the rolled material 10 in the interval L _tm (mm) near the tail end in the center of the longitudinal direction. Specifically, the entrance-side average plate width B _head ^ave (mm) is calculated by the following formula (20).

The correction device 9f for the opening mode of the head and tail of the trimming machine calculates the absolute value of the deviation between the average plate width B _head ^ave (mm) on the entrance side and the average plate width B _tail ^ave (mm) on the entrance side as the average width deviation near the head and tail (mm). Specifically, the average width deviation (mm) near the head and tail ends is calculated by the following formula (21).

| B _head ^ave - B _tail ^ave | (21)

When the average width deviation (mm) k near the head and tail ends is not set in advance, the trimmer head and tail end opening pattern corrector 9f determines that the shape of the rolled material 10 is not tapered. For example, the trimmer head and tail opening degree pattern corrector 9f determines that the shape of the material to be rolled 10 is a rectangular shape with a certain degree of width deviation. At this time, the trimming machine head and tail opening degree pattern corrector 9f calculates the trimming machine head end opening degree mode correction amount ΔΩ _Hi and the trimming machine tail end opening degree mode correction amount ΔΩ _{Tj in the} same manner as the first embodiment.

When the average width deviation (mm) near the head and tail ends is preset to be k or more, the trimmer head and tail end opening pattern corrector 9f determines that the shape of the rolled material 10 is tapered. At this time, the trimming machine head and tail opening degree pattern corrector 9f calculates the measured plate width B _Hi (mm) of the head end portion of the rolled material 10 in the longitudinal direction at the control point L _i and the rolled material 10 Inlet-side width deviation Δω _Hi (mm) of inlet-side average plate width B _head ^ave (mm). Specifically, the entrance-side width deviation Δω _Hi (mm) is calculated by the following formula (22).

Δ ω _Hi = B _Hi - B _head ^ave (22)

If the average width deviation near the head and tail ends is preset to be more than k, the trimmer head and tail end opening pattern corrector 9f calculates the entry side of the tail end portion of the rolled material 10 in the longitudinal direction at the control point L _j The measured deviation of the width B _Tj (mm) from the entrance side average plate width B _tail ^ave (mm) of the rolled material 10 is Δω _Tj (mm). Specifically, the entrance-side width deviation Δω _Tj (mm) is calculated by the following formula (23).

Δ ω _Tj = B _Tj - B _tail ^ave (23)

To pre-set the average width deviation k near the head and tail ends, the trimming machine head and tail opening pattern corrector 9f uses the entrance side width deviation Δω _Hi (mm) of formula (22) to calculate the trimming machine head end Opening mode correction amount ΔΩ _Hi . The trimming machine head and tail opening degree mode corrector 9f uses the entrance side width deviation Δω _Tj (mm) of equation (23) to calculate the trimming machine tail end opening mode correction amount ΔΩ _Tj .

Next, the actual plate width of the rolled material 10 detected by the entrance-side width meter 3 will be described using FIG. 10.

Fig. 10 is a diagram showing the measured plate width of the rolled material used in the control device of the trimming machine according to the second embodiment of the present invention. The horizontal axis in FIG. 10 is the distance (mm) from the head end of the material to be rolled 10 in the longitudinal direction. The vertical axis of FIG. 10 is the measured plate width (mm) of the rolled material 10.

As shown in FIG. 10, the front end portion, the center portion, and the tail end portion of the rolled material 10 before rolling in the longitudinal direction are appropriately set. The section L _hm (mm) in the vicinity of the head end in the center in the longitudinal direction and the section L _tm (mm) in the vicinity of the tail end in the center in the longitudinal direction are appropriately set.

In FIG. 10, the plate width of the material to be rolled 10 is widened from the head end toward the tail end. At this time, if the average width deviation (mm) in the vicinity of the head and tail ends of the equation (21) is preset to be k or more, it is determined that the rolled material 10 is tapered.

According to the second embodiment described above, the correction amount of the opening pattern of the head and tail of the trimming machine is calculated by a different method by The case where the shape is not tapered and the shape of the material to be rolled 10 is tapered. Therefore, when the shape of the material to be rolled is tapered, the deviation can be eliminated only by extracting the width deviation at the entrance side.

[Possibility of industrial use]

As described above, the control device of the trimming machine of the present invention can be used to improve the accuracy of the width dimension of products.

1‧‧‧ Trimming machine

1a‧‧‧roll

1b‧‧‧Hydraulic cylinder

2‧‧‧horizontal rolling machine

3‧‧‧ Entry side width meter

4‧‧‧Roller speed detector

5‧‧‧Hot film detector

6‧‧‧rotation speed detector

7‧‧‧Exit width meter

8‧‧‧Tracking device

9‧‧‧Control device

9a‧‧‧pass schedule determiner

9b‧‧‧Opening pattern generator

9c‧‧‧Opening controller for trimming head

9d‧‧‧Inlet side width measured data collector

9e‧‧‧Exit side width measured data collector

9f‧‧‧Corrector for opening pattern of trimming head

9g‧‧‧ trimming machine head and tail opening pattern correction corrector

10‧‧‧ Rolled material

Claims (2)

A control device for a trimming machine is provided with: a pass schedule determiner, which determines the trimming machine according to the plate thickness and width of the rolled material before rolling and the target plate width of the rolled material after rolling The gap between the rollers; the opening pattern generator of the head and tail of the trimming machine is based on the information from the determinator of the aforementioned pass program table to make the unsteady part of the head and tail of the rolled material coincide with the target plate width To generate the trimming machine head and tail opening degree mode; the trimming machine head and tail opening degree controller is based on the roller gap of the trimming machine determined by the pass schedule determiner, and by the foregoing The trimming machine head and tail opening pattern generated by the trimming machine head and tail opening pattern generator controls the roller opening of the aforementioned trimming machine; the entrance side width measured data collector collects the aforementioned trimming machine ’s The measured value of the measured plate width of the rolled material on the entrance side; the measured data collector of the width of the exit side collects the detected value of the measured plate width of the rolled material on the exit side of the aforementioned trimming machine; Degree mode corrector is based on the entrance side The measured value of the measured plate width of the rolled material collected by the measured data collector is used to calculate the width deviation of the entrance side, and the edge trimming machine for the opening controller of the front end of the edge trimming machine is calculated according to the width deviation of the entrance side The correction amount of the head and tail opening pattern; and the trimmer head and tail opening pattern correction corrector are based on the trimming machine head and tail generated by the aforementioned trimming machine head and tail opening pattern generator End opening degree mode, the measured value of the measured plate width of the rolled material collected by the aforementioned exit side width measured data collector, and the entrance side width calculated by the aforementioned trimming machine head and end opening degree mode corrector The deviation is used to calculate the correction correction item for the trimming machine head and tail opening degree mode corrector for the trimming machine head and tail opening degree mode corrector. The trimming machine control device as described in item 1 of the patent application scope, wherein the trimming machine head end opening pattern corrector is based on the calendered material collected by the inlet side width measured data collector The width deviation of the entrance side obtained from the measured value of the measured plate width determines whether the shape of the rolled material is tapered, when the shape of the rolled material is not tapered, and the shape of the rolled material is tapered In this case, different methods are used to calculate the correction amount of the trimming machine head and tail opening mode for the aforementioned trimming machine head and tail opening controller.