JPH0737402U - Sizing press control device - Google Patents

Abstract

(57) [Summary] [Structure] The sizing press control device of the present invention is a main machine speed slip state detection circuit for detecting the slip state of the mold motor by the output signal from the mold motor speed detector, and the main machine speed A press-slip determination circuit for detecting press-slip from a slip signal from the slip state detection circuit, a traveling speed signal from the tracking circuit, and a load signal from the load cell is provided. [Effects] According to the present invention, it is possible to perform a relief process for performing normal width rolling.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sizing press control device in a hot rolling line.

[0002]

[Prior art]

 With conventional sizing press equipment, when slippage occurs between the die and the material during width rolling, it is visually detected by an observer, and a rescue procedure to continue normal width rolling by the operator's manual operation. It is carried out.

[0003]

[Problems to be solved by the device]

 As described above, in the conventional sizing press device, the slip between the die and the material is detected and the relief process from the slip is manually performed.However, in the present invention, the above operation is automatically performed. The purpose of the present invention is to provide a sizing press control device that can shorten the time from the occurrence of slip to the return to normal width rolling and can simplify the work.

[0004]

[Means for Solving the Problems]

 The sizing press control device of the present invention is installed on the inlet side of the sizing press device for forming the width of the rolled material before rolling in the hot rolling line, and is installed at the entrance side of the sizing press device to control the traveling speed of the rolled material. The input side pinch roll to be adjusted, the input side speed detector that converts the input side rotation speed of the input side drive motor that drives the input side pinch roll, and the input side rotation speed that is provided in the input side digital drive device. The input side speed converter, the output side pinch roll that is installed on the outlet side of the sizing press to adjust the traveling speed of the rolled material, and the output side rotation speed of the output side drive motor that drives the output side pinch roll. Output speed detector for detection, output speed converter provided in output digital drive device for converting output rotation speed, output signal from output speed converter and input speed A tracking circuit that calculates the traveling speed of the rolled material based on the output signal from the converter, a die that forms the width of the rolled material being conveyed, and a load that is attached to the die and that is applied to the rolled material. From the load cell, the die motor provided for moving the die, the die motor speed detector attached to the die motor to measure the rotation speed, and the die motor speed detector. The main machine speed slip condition detection circuit that detects the slip condition of the die motor by the output signal of the mold, the slip signal from the main machine speed slip condition detection circuit, the traveling speed signal from the tracking circuit, and the load signal from the load cell. It is equipped with a press slip determination circuit that detects press slips from the rolls.When slips are detected, the rolling material is advanced by a predetermined length and the width rolling amount is determined. By fence, and performing remedy for performing normal width rolling.

[0005]

[Action]

 In the sizing press control device of the present invention, rolling is performed in the hot rolling line, and the inlet side pinch roll is installed at the inlet side of the sizing press device to adjust the advancing speed of the rolling material and the inlet side pinch roll. Detecting the input side rotation speed of the input side drive motor, which drives the input side, installs the input side speed converter in the input side digital drive device to convert the input side rotation speed, and the output side pinch roll to the output side of the sizing press device. Is installed to adjust the traveling speed of the rolled material, the output side rotation speed of the output side drive motor that drives the output side pinch roll is detected, and the output side speed converter is installed in the output side digital drive device to output. The side rotation speed is converted, the traveling speed of the rolled material is calculated from the output signal from the output speed converter and the output signal from the input speed converter, and the width of the rolled material to be conveyed is formed in the width direction. , To the mold A load cell is attached to measure the load applied to the rolled material, a mold motor is provided for moving the mold, and a mold motor speed detector is attached to the mold motor to measure the rotation speed. The slip state of the die motor is detected by the output signal from the die motor speed detector, and the slip signal from the main machine speed slip state detection circuit, the traveling speed signal from the tracking circuit, and the load signal from the load cell are detected. A feature is that when a press slip is detected, the rolling material is advanced by a predetermined length when the slip is detected, and the width rolling amount is reduced, thereby performing a rescue procedure for performing a normal width rolling.

[0006]

【Example】

 Next, an embodiment of the present invention will be described. In FIG. 1, reference numeral 1 denotes an entrance side pinch roll installed on the entrance side of the sizing press apparatus for adjusting the traveling speed of the rolled material, and 7a denotes an entrance side rotation speed of an entrance side driving electric motor for driving the entrance side pinch roll 1. The inlet side speed detector, 12a is provided in the inlet side digital drive device to change the inlet side rotation speed, and 3 is installed at the outlet side of the sizing press device and Output side pinch roll for adjusting the traveling speed, 7b is an output side speed detector for detecting the output side rotation speed of the output side drive motor for driving the output side pinch roll 3, and 12b is provided in the output side digital drive device. Output side speed converter for converting the output side rotational speed, 14 is a track for calculating the advancing speed of the rolled material based on the output signal from the output side speed converter 12b and the output signal from the input side speed converter 12a. 2 is a die for forming the rolled material in the width direction, 4 is a load cell attached to the die 2 for measuring the load applied to the rolled material, and 6 is provided for moving the die 2. A mold motor, 8 is a mold motor attached to the mold motor 6 to measure the rotation speed, and a speed detector, 11 is a mold motor according to an output signal from the mold motor 8 6, a main engine speed slip state detection circuit for detecting the slip state, and 15 detects a press slip from the slip signal from the main engine speed slip state detection circuit 11, the traveling speed signal from the tracking circuit 14 and the load signal from the load cell 4. When the slip is detected, the rolling material is moved forward by a predetermined length and the width is reduced to reduce the normal width. In a sizing press that performs a widthwise rolling process on the material before rolling on the hot rolling line, when the die and material slip during width rolling, The control device comprehensively judges information such as the progress of the material, the load applied to the mold, and the speed change of the main motor, and the function to automatically detect the slip, and the material for which the slip is detected has the specified length. It is characterized by having a function of automatically performing a relief treatment for performing a normal width rolling by advancing only the width and reducing the width rolling amount.

According to the sizing press apparatus of the present embodiment configured as described above, when the die and the material slip, it is possible to automatically perform the work until the normal width rolling is restored.

That is, when the die 2 and the material 17 slip during width rolling, a signal from the speed detector 7 attached to the electric motor 5 of the entrance side pinch roll 1 and the exit side pinch roll 3 is sent to the digital drive device. The progress of the material obtained by conversion in the converter 9 in 12 and the tracking circuit 14 in the press controller 16 and the load detected by the load cell 4 attached to the mold 2 The signal from the speed detector 8 attached to the electric motor 6 is checked by the main machine speed slip state detection circuit connected to the speed control circuit 10 in the digital drive device 13, and the slip caused when the impact drop of the speed is small is detected. The signal and the signal are comprehensively judged by the press slip judgment circuit 15 in the press control device 16, and the material progress is smaller than the specified progress, and the load is smaller than the normal width rolling. In addition, the automatic slip detection function detects that there is a slip when the slip signal is on, and when the slip is detected, the input side pinch roll 1, the output side pinch roll 3 and the table roll 18 are used for normal width rolling of the material. It has a function of automatically performing a relief process from a slip state by advancing by a designated amount and reducing the width rolling amount by the die 2 by changing the set value in the press control device 16. Is a sizing press device.

[0009]

[Effect of device]

 According to the present invention, slip detection can be performed, and relief processing from a slip state can be automatically performed. Therefore, it is possible to reduce work time and simplify work.

[Brief description of drawings]

FIG. 1 is a block diagram of automatic slip detection according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of an automatic rescue procedure.

[Explanation of symbols]

 1 Input side pinch roll 2 Mold 3 Output side pinch roll 4 Load cell 11 Main machine speed slip state detection circuit 12 Digital type drive device 14 Tracking circuit 15 Press slip determination circuit

Claims (1)

[Scope of utility model registration request] 1. A sizing press device for forming a rolled material in the width direction before rolling in a hot rolling line,
An entrance side pinch roll installed on the entrance side of the sizing press device for adjusting the traveling speed of the rolled material, and an entrance side speed detection for detecting the entrance side rotation speed of an entrance side drive motor for driving the entrance side pinch roll. Vessel, an inlet side speed converter provided in the inlet side digital drive device for converting the inlet side rotation speed, and an outlet side provided at the outlet side of the sizing press device for adjusting the traveling speed of the rolled material. A pinch roll, an output speed detector that detects the output rotation speed of the output drive motor that drives the output pinch roll, and an output converter that is provided in the output digital drive device to convert the output rotation speed. A side speed converter, a tracking circuit for calculating a traveling speed of the rolled material by an output signal from the output speed converter and an output signal from the input speed converter, and are conveyed. A die for forming the rolling material in the width direction, a load cell attached to the die for measuring a load applied to the rolling material, a die motor provided for moving the die, and A mold motor speed detector attached to the mold motor to measure the rotation speed, and a main machine speed slip condition for detecting the slip condition of the mold motor by an output signal from the mold motor speed detector. A detection circuit and a press slip determination circuit that detects a press slip from a slip signal from the main machine speed slip state detection circuit, a traveling speed signal from the tracking circuit, and a load signal from the load cell, and detects a slip. In this case, the rolling material is advanced by a predetermined length, and the width rolling amount is reduced to perform normal width rolling. Sizing press control apparatus and performs location.